УЗЕЛ ЛИСТОВОГО ПАКЕТА

Изобретение относится к узлу листового пакета электрического генератора, в частности генератора безредукторной ветроэнергетической установки, а также к способу изготовления узла листового пакета. Технический результат - улучшение отвода тепла узла листового пакета. Узел листового пакета электрического генератора, в частности генератора безредукторной ветроэнергетической установки, содержит по меньшей мере один листовой пакет, по меньшей мере одну расположенную вокруг листового пакета обмотку. Между листовым пакетом и обмоткой расположено электрическое изоляционное средство. Изоляционное средство содержит композиционный материал для пропускания возникающего в обмотке тепла. При этом изоляционное средство содержит керамические частицы. 4 н. и 9 з.п. ф-лы, 4 ил.

ДВИГАТЕЛЬ ДЛЯ АММИАЧНОГО ХОЛОДИЛЬНОГО КОМПРЕССОРА ЗАКРЫТОГО ТИПА

Изобретение относится к электротехнике. Технический результат состоит в повышении надежности при воздействии внешней среды. Двигатель для холодильного аммиачного компрессора закрытого типа содержит статор и ротор, которые в рабочем режиме погружены в аммиачный хладагент. Обмотка, пазовый клин и пазовая изоляция зафиксированы с помощью защелкивающихся зажимов с обеспечением препятствия их сдвигу в пазе. Фиксирующие зажимы изготовлены из фторопласта. На концевой участок обмотки двигателя намотана в один слой или многослойно лента из фторопласта, внешний слой которой снабжен укрепляющей трубкой из фторопласта с прочностью на разрыв, превышающей прочность на разрыв материала фторопластовой ленты. 2 з.п. ф-лы, 4 ил.

СТАТОР ЭЛЕКТРОДВИГАТЕЛЯ С ВНЕШНИМ РОТОРОМ

Изобретение относится к области электротехники, касается электрических машин, которые могут использоваться, например, в стиральных машинах барабанного типа, и касается, в частности, особенностей выполнения статора бесщеточного электродвигателя постоянного тока (BLDC) с внешним ротором. Технический результат, достигаемый настоящим изобретением - экономия материала, упрощение технологии изготовления статора при одновременном повышении производительности и надежности электродвигателя со статором предложенной конструкции и внешним ротором. Статор содержит спиральный сердечник, имеющий множество пакетированных слоев, выполненных наматыванием одного металлического листа, имеющего заданную форму, в направлении по спирали, основание и зубья, выступающие из основания, изолятор, выполненный из электроизоляционного материала и окружающий спиральный сердечник, а также выемки, выполненные в основании спирального сердечника и расположенные под зубьями для снижения напряжения, вызванного наматыванием ...

СТАТОР ЭЛЕКТРИЧЕСКОЙ МАШИНЫ И ЕГО ИЗГОТОВЛЕНИЕ

Изобретение относится к области электротехники, в частности к статору электрической машины. Технический результат – улучшении качества изоляции и теплоотвода, повышение технологичности изготовления обмотки. Статор электрической машины содержит обмотку, состоящую из нескольких катушек, и листовой пакет с пазами, через которые проходят витки катушек обмотки. При автоматизированном изготовлении обмотки изготавливают множество пучков прямых, параллельных друг другу и электрически изолированных друг от друга проводников, которые длиннее, чем паз. Каждый пучок проводников вставляют в паз статора так, что оба конца каждого проводника выступают из паза, и концы проводников на обоих осевых концах листового пакета электрически соединяют через соответствующую лобовую часть обмотки с катушками обмотки. Для каждого проводника изготавливают изоляционное полое тело или блок изоляционных полых тел со сквозными отверстиями для проводников и для получения проводников заливают электрически проводящим материалом ...

ОХЛАЖДАЕМАЯ ТЕКУЧЕЙ СРЕДОЙ АКТИВНАЯ ЧАСТЬ, ЭЛЕКТРИЧЕСКАЯ МАШИНА И ПРИВОДНАЯ СИСТЕМА

Изобретение относится к области электротехники. Технический результат – повышение надежности. Активная часть машины выполнена в форме полого цилиндра, имеющей проходящие в осевом направлении канавки, по меньшей мере один электрический проводник, который расположен в соответствующей канавке и состоит из нескольких частичных проводников. Основная изоляция расположена между проводником и канавкой. Кроме того, изоляция окружает частичный проводник. Охлаждающий канал расположен между основной изоляцией и изоляцией частичного проводника. Основная изоляция покрывает большую часть дна и две стенки канавки. В канавке расположены друг над другом в радиальном направлении по меньшей мере два электрических проводника. Предусмотрена оболочка проводника, которая его окружает в плоскости, перпендикулярной осевому направлению. При этом как канавка в зоне нижнего электрического проводника, так и оболочка нижнего электрического проводника сужается в направлении дна канавки так, что оболочка нижнего проводника ...

Электроизоляционный материал для катушки

Изобретение относится к электроизоляционному материалу для катушки, причем электроизоляционный материал размещен между сердечником статора и катушкой и способен изолировать катушку от сердечника статора. Расширяющийся добавочный слой со стороны сердечника статора и расширяющийся добавочный слой со стороны катушки включают в себя пеноматериалы, вспенивающиеся при нагревании. Пеноматериал, включенный в расширяющийся добавочный слой со стороны сердечника статора, имеет такую характеристику вспенивания, что характеристика возрастания скорости вспенивания от повышения температуры, смещается в сторону более низких температур относительно характеристики возрастания пеноматериала, включенного в расширяющийся добавочный слой со стороны катушки. Изобретение позволяет уменьшать разность в скорости вспенивания между добавочным слоем со стороны катушки и со стороны сердечника статора. 9 ил.

КАРКАС КАТУШКИ ЭЛЕКТРОДВИГАТЕЛЯ И СПОСОБ ЕГО ИЗГОТОВЛЕНИЯ

ROTIERENDE ELEKTRISCHE MASCHINEN

BÜRSTENLOSER MOTOR MIT AN DER SEITENWAND DES MOTORGEHÄUSES ANGEBRACHTEN KONDENSATOREN

Elektrische Maschine mit einer Nutisolation und Verfahren zu deren Herstellung

Die Erfindung betrifft eine Elektrische Maschine mit einer Nutisolation (7) und ein Verfahren zu deren Herstellung, wobei die Nuitisolation (7) als Folie (20, 28) mit wenigstens einer Isolierschicht (15, 18, 19) ausgebildet ist und in Nuten (2) einliegende Wicklungen (4) einer elektrischen Maschine umgibt. Wenigstens eine Isolierschicht (15) der Nutisolation (7) ist an gegenüberliegenden Seitenrändern (10, 11) dicker ausgebildet ist als im Bereich (12) zwischen den gegenüberliegenden Seitenrändern (10, 11).

Bürstenloser Gleichstrommotor

Es wird ein BLDC-Motor offenbart, der Folgendes enthält: einen Stator, der mit mehreren Zähnen versehen ist, die sich in Richtung einer Innenseite eines Kerns erstrecken und um die eine Spule gewickelt ist; Rotoren, die an einer Innenseite des Stators derart angeordnet sind, dass sie voneinander beabstandet sind, und mehrere Permanentmagneten aufweisen, die mit einem Kern davon gekoppelt sind; und Hall-Sensoren, die derart angeordnet sind, dass sie einer Außenumfangsfläche des Kerns des Rotors gegenüberliegen, während sie voneinander beabstandet sind, und innerhalb eines Höhenbereichs zwischen beiden Oberflächen in einer Höhenrichtung des Kerns des Rotors angeordnet sind, um eine als Antwort auf eine Drehung des Rotors erfolgende Änderung eines Magnetfelds zu detektieren, wodurch Positionsinformationen eines Rotors genau erfasst werden und eine Drehung des Rotors genau gesteuert wird, indem ein magnetischer Fluss, der von einem Permanentmagneten des Rotors erzeugt wird, hinlänglich an einen ...

Motor mit einem Ständer, der einen Isolator mit hoher Wärmeleitfähigkeit umfasst

Kraftfahrzeugwechselstromgenerator

Elektrische Maschine und Verfahren zum Herstellen einer elektrischen Maschine

Es wird eine elektrische Maschine umfassend einen Rotor und einen Stator (10) vorgeschlagen, wobei der Stator (10) mindestens ein Lamellenpaket (20) mit mehreren in Axialrichtung bezüglich einer Statorachse des Stators (10) verlaufenden Nuten (21-24) umfasst, wobei in den Nuten (21-24) jeweils elektrische Leiter von elektrischen Wicklungen des Stators (10) angeordnet sind, wobei die elektrischen Leiter gegenüber dem Lamellenpaket (20) jeweils durch ein in der jeweiligen Nut (21-24) vorgesehenes Nutisolationsmittel (50) elektrisch isoliert sind, wobei auf einer ersten in Axialrichtung des Stators (10) oberen Seite (28) und einer zweiten der ersten Seite gegenüberliegenden unteren Seite des Lamellenpakets (20) jeweils eine Decklamelle (30) angeordnet ist, wobei das Nutisolationsmittel (50) an seinen beiden in Axialrichtung des Stators (10) gegenüberliegenden Enden jeweils einen gegenüber dem in der Nut (21-24) angeordneten Teil des Nutisolationsmittels (50) verbreiterten Kragen (55) umfasst ...

Stator und Verfahren zur Herstellung eines Stators eines elektrischen Antriebsmotors

Wechselstromgenerator für Fahrzeuge mit geräuscharmem Betrieb

Die rotierende elektrische Maschine für Fahrzeuge umfaßt einen Läufer und einen Ständer (2) mit einem Blechpaket (6) und einer Drahtwicklung (14), die in Nuten (10) des Blechpakets angeordnet ist. Er enthält ein mechanisches Dämpfungselement (46), das zwischen einer Folie (30), in der die Drähte (12) aufgenommen sind, und den Nuten (10) eingefügt ist.

WINDINGS ON LAMINATED CORES FOR ELECTRICAL MACHINES AND METHODS OF MAKING SAME

Field assemblies and methods of making same

ARMATURES AND STATORS

... 1279379 Coated core members SCHENECTADY CHEMICALS Inc 19 April 1971 [20 March 1970] 22275/71 Heading B2E [Also in Division H2] A core member for a dynamoelectric machine having arcuately spaced projections has some at least of the surfaces of each projection coated with a polyester or polyesterimide thermo setting resin prepared from monomers including tris(2-hydroxyethyl) isocyanurate. The resins may be obtained by reacting tris(2-hydroxyethyl) isocyanurate with terephthalic or isophthalic acid or an ester forming derivative of these. The tris(2-hydroxyethyl) isocyanurate may constitute as little as 10% of the total polyhydric alcohol used to obtain the thermosetting resin. Suitable modifying polyhydric alcohols and polycarboxylic acids are specified. Fig. 1 is a perspective view of a stator for an electric motor and Fig. 3 is an enlarged cross-section along the line 3-3 of Fig. 1. The stator 10 comprises a stack of laminae 11 providing a number of arcuately spaced projections in the form ...

Sub-slot cover for dynamoelectric machine

In a dynamoelectric machine including a rotor of electrically conductive material having a plurality of axially extending slots for receiving electrical conductors, there is provided apparatus in each slot for electrically insulating the conductors from the rotor. The insulating apparatus comprises a substantially U-shaped insulating member of an aramid paper extending axially along the length of the slot. The base of the U-shaped insulating member is held in position by a sub-slot cover formed of an extruded plastic material which has an inner member covering an axially extending sub-slot located beneath each of the conductor slots of the rotor and an outer member which fits over the top of the base of the U-shaped insulation member and latches into the inner member. Both the outer and inner members of the sub-slot cover have molded apertures for allowing the passage of cooling air and the U-shaped insulation member has a corresponding aperture whereby the cooling air can be passed through ...

Coil winding component and rotary electric machine

Electric device stator and methods for winding

Very high temperature stator construction

A stator has a field winding, the winding comprising a plurality of axial conductors connected at their ends to form at least one circuit with a number of turns. Each axial conductor is disposed within a tubular axial insulation member, the tubular axial insulation members being disposed within a stack of laminations. The axial conductors and the tubular insulation members are radially distributed at equal angles. The position of the axial conductors and the tubular insulation members is predetermined.

Field assemblies and methods of making same

An insulated tooth for an electric motor or generator

A stator or rotor for an electric motor or generator comprising a plurality of teeth 300 for receiving coil windings, wherein each tooth has a ridged injection moulded plastics insulating layer 400 (having good thermal conductivity e.g. a thermally conductive liquid crystal polymer) having a gap(s) formed in the layer receiving an insulating element(s) 460 having greater mechanical strength (e.g. nylon) than the moulded material. Keying features 430,440,450,460 ensure correct placement of the insulation elements. Figs 2,3 (not shown) disclose back iron protrusions 210, the teeth 300 including a recess to receive the protrusion 210. The back iron protrusion has a recess defined by resilient arms 220, the ends thereof having inwardly projecting portions which engage in complimentary formations formed at the root end of a projection 330 within the tooth recess when the tooth is radially assembled to the back iron. The insulating elements include wire guiding members 470 and channels 480, the ...

Improvements in armatures for electric dynamos, motors and like machinery

... 239,076. McEldowney, C. A. Nov. 13, 1924. Insulation; cores and carcass structures.-In a dynamo armature consisting of a number of discs 3 threaded on a shaft 1 and formed with slots 4, preferably widening inwardly, for the winding, a number of discs 7 of insulating material, such as fibre, is interspersed among the laminations. The slots in the insulating discs are rather smaller than those in the laminations, so that the edges of the insulating discs hold the wire clear of the iron. A similar arrangement in armatures of the Gramme ring type is disclaimed.

Brushless motor and method for manufacturing same

METHOD OF PRODUCING WINDINGS FOR ELECTRICAL MACHINES AND APPLIANCES

... 1524414 Resin coated slot liners SCHWEIZERISCHE ISOLA WERKE 18 June 1976 [19 June 1975] 25508/76 Heading B2E [Also in Divisions C3 and H2] A slot liner is coated with an incompletely cured resin, so that on curing it may cause the liner to adhere in the slot of a core of an electrical machine. For class B insulation (130‹C) the base of the slot liner may be polyester sheets or laminates of polyester sheets and laminated fibre sheets. The coating material may be a phenolic resin or an epoxy resin with BF 3 which may include ketone soluble rubbers, e.g. butadiene/acrylonitrile copolymers. For Class F insulation (155‹C) or Class H insulation (180‹C) the base is of polyamide fibres or asbestos. The coating may be a mixture of a polyurethane ester imide and an epoxy resin., An example of the imide is the condensation product of phenol, cresol or at least one xylenol, the N-carbpxymethylimide of trimellitic acid, triethylene glycol and tris-(2-hydroxyethyl)-isocyanurate. The epoxy resin may be ...

Improvements in laminated electrical insulation

... 788,520. Laminated materials. GENERAL ELECTRIC CO. Aug. 8, 1955 [Aug. 12, 1954], No. 22812/55. Drawings to Specification. Class 140. [Also in Group XXXV] An electrically insulating laminate comprises a layer of paper bonded to a layer of polyethylene terephthalate. Typically, for use as a slot liner in dynamo electric machines, the two laminµ are each 5 mils. thick and are united by a rubber latex-base adhesive, and the paper used is a rag paper.

INSULATION OF ELECTRICAL MACHINE WINDINGS

... 1493994 Winding insulation for elastic machines N I I EXPERIMENTAL INST AVTOMOBIL ELEKTROOBORUD I AVTOPRIB 20 May 1975 21403/75 Heading B3A [Also in Division H2] Insulation for the windings of an electric machine is in the form of a sleeve 1, of S-shaped cross-section, having a portion 4 covering the slot conductors and a portion 3 covering the endconnectors, there being a transverse notch extending for half the depth of the sleeve at the point where the slot portion joins the end connector portion. This allows a portion 6 of the sleeve to be best for use as interlayer insulation of the end connectors while a portion 7 is used as interturn insulation of the bottom layer of end connectors. The sleeve is formed, cut and placed in the armature 15 as follows. A motor 20 drives through crank gear 23 reciprocating rod 8 which has various cams for driving the mechanisms. Cam 9, Fig. 3, drives an arm 54 which drives ratchet-and-pawl 25, 26 which drive four pairs of rollers 24. Rollers 24 drive ...

Improvements in dynamo electric machines

... 549,063. Insulation for dynamo-electric machines. TUSTIN, A., and METROPOLITANVICKERS ELECTRICAL CO., Ltd. July 29, 1941, No. 9596. Drawings to Specification. [Class 35] An insulating slot liner for dynamo-electric machines run at high temperatures consists of a sheet of glass-fibre fabric (or other flexible fabric such as silk) of width equal to twice the radial depth of the slot plus the tangential width of the base of the slot having secured to it, by an adhesive, two similar plates of mica or other non-flexible insulating material with a gap between their adjacent edges substantially equal to the tangential width of the base of the slot.

HAND DRILL WITH ELECTRICAL DRIVING MOTOR

STATOR HAVING INSULATION LAYER

Die Erfindung betrifft einen elektrischen Leiter zur Verwendung in elektrischen Maschinen, insbesondere zur Herstellung von Wicklungen für Statoren oder Rotoren von elektrischen Maschinen wie Elektromotoren oder Generatoren. Der Leiter umfasst einen elektrisch leitfähigen Leiterkern mit einem im Wesentlichen rechteckigen Querschnitt und weist zwei gegenüberliegend angeordnete Längsstirnflächen und zwei gegenüberliegend angeordnete Querstirnflächen sowie eine Gesamt- Längserstreckung zwischen einem ersten Ende und einem zweiten Ende auf. Der Leiter umfasst außerdem zumindest eine Isolationsschicht, welche wenigstens über einen überwiegenden Teil der Gesamt-Längserstreckung des Leiterkerns vollumfänglich um den Leiterkern angeordnet ist. Die zumindest eine Isolationsschicht besteht überwiegend aus einem extrudierbaren, polymeren, thermoplastischen Material ausgewählt aus der Gruppe aromatischer Polysulfone (PAES) oder Mischungen aus aromatischen Polysulfonen (PAES).

Short-circuit-rotor

Ein Kurzschlussrotor (1) besitzt ein Rotorpaket (2), in dem geschrägte oder achsparallele Nuten (4), in die Kupferstäbe (3) eingesetzt sind, vorgesehen sind. An die Kupferstäbe (3) sind Streusegmentstege (5) angeformt, die zur Außenfläche (7) des Rotorpaketes (2) ragen. Die Kupferstäbe (3) sind gegenüber den Innenflächen (9) der Nuten (4) isoliert und an diesen über achsparallele Rippen (8) abgestützt. Die über die seitlichen Stirnflächen (12) des Rotorpaketes (2) vorstehenden Enden der Kupferstäbe (3), die Kerben (11) aufweisen, sind auf beiden Seiten des Rotorpaketes (2) mit angegossenen Kurzschlussringen (20) aus Aluminium elektrisch leitend verbunden. In einzelnen Nuten (4) sind aus dem Werkstoff Aluminium der Kurzschlussringe (20) bestehende und mit den Kurzschlussringen (20) einstückig ausgebildete Stäbe (15) vorgesehen. Die Aluminiumstäbe (15) sind mit gleichen Winkelabständen, insbesondere 90°, voneinander angeordnet.

Multiple parallel conductor with spacer plate

Die gegenständliche Erfindung betrifft einen einfach herstellbaren und verwendbaren Mehrfachparallelleiter mit einer Mehrzahl von verdrillten, isolierten Einzelleitern (3), wobei die Einzelleiter (3) in mehreren nebeneinander angeordneten Teilleiterbündeln (2) übereinander angeordnet sind, wobei am Mehrfachparallelleiter (1) an einer Seitenfläche (5) des Mehrfachparallelleiters (1) in Längsrichtung (x) des Mehrfachparallelleiters (1) ein Band (7) angelegt ist, an dem in Längsrichtung (x) verteilt Distanzplättchen (6) angeordnet sind, und der Mehrfachparallelleiter (1) mit dem Band (7) und den Distanzplättchen (6) mit einer Umwicklung (8) umwickelt ist.

BRUSHLESS ENGINE WITH HOUSING WITH THE POSSIBILITY FOR THE ADJUSTMENT OF STATOR AND SENSOR

TRÄGER FÜR DIE STATORWICKLUNG VON ELEKTROMOTOREN

Mechanism for the covering of certain parts of the surface of a stator package of electrical machines

Procedure for the assembly of magnetic parts of electromagnetic mechanisms

GROOVE ISOLATION

Motor and compressor

Stator used for motor, motor and ventilation cooling method for motor

A stator used for a motor, the motor and a ventilation cooling method for the motor. The stator comprises concentrated windings (11, 12, 13), and at least two wedge blocks (41-48) are arranged at the gaps between the adjacent concentrated windings (11, 12, 13). The at least two wedge blocks (41-48) are distributed on the concentrated windings (11, 12, 13) in a staggered manner to form a first ventilation path. Therefore, the concentrated windings (11, 12, 13) can be cooled effectively, the concentrated windings (11, 12, 13) are effectively constrained in the circumferential direction by means of the at least two wedge blocks (41-48), the service life of the motor is further prolonged, and the reliability of the motor is improved.

GENERATOR WITH SINGLE TURN WAVE WINDING, WIND TURBINE AND METHOD FOR DETERMINING THE THICKNESS OF THE SLOT INSULATION OF A GENERATOR

A generator (76) comprising at least one pole set represent-ing one phase (1, 2, 3) is disclosed. Each pole set comprises a number of poles (4), a number of slots (19) and a number of stator teeth. Each phase is insulated from neighbouring teeth by means of a slot insulation. A number of conductors (8) are assembled such that each conductor (8) is turned about the poles (4) of a particular pole set such that only half a sin-gle turn (8a, 8b, 8c, 8d) is associated to each pole (4a, 4b, 4c, 4d). Each pole (4) comprises a slot insulation (61, 62, 63, 64) between the pole (4) and the associated conductors (8). The slot insulation (61, 62, 63, 64) has a different thickness for at least two different poles (4) of the same pole set.

STATOR WINDING METHOD AND APPARATUS

A stator assembly includes a stator core and at least one conductive bundle. The stator core has a first end, a second end, and a plurality of slots extending from the first end to the second end. The conductive bundle includes a plurality of individually insulated conductive wires. At least one portion of the at least one conductive bundle extends from the first end to the second end of one slot of the plurality of slots. The at least one portion is twisted by a predetermined amount within the one slot to minimize a circulatory current along the plurality of individual insulated conductive wires in the at least one portion.

ELECTRICAL SUBMERSIBLE PUMP WITH MOTOR WINDING ENCAPSULATED IN BONDED CERAMIC

An electrical submersible pump assembly (45) has a motor (10) with a stator stack of limitations (16). The stack has slots (20) through which magnet wires (22) are wound. An encapsulate (24) surrounds and bonds the magnet wires together within each slot. The encapsulate includes ceramic particles (25) within a polymer adhesive matrix (27). The polymer matrix may be a fluoropolymer adhesive. Each of the magnet wires may have an electrical insulation layer (22b) surrounding a copper core (22a). The ceramic particles are rounded and much smaller than a cross-sectional area of each of the magnet wires. At least some of the magnet wires may be in contact with a perimeter (21) of the slot. The polymer matrix fills all voids within each of the slots. The ceramic particles may be porous.

STATOR

A stator includes a yoke (12), teeth (13), insulating members (20), a first ribs (24), coils (15), annular members (31) and adhesive bodies (60). The insulating members (20) each have circumferential wall (21a) and a flange (23). The flange (23) includes a plate wall (22). The first ribs (24) protrude from the respective flanges (23). The coils (15) each wound on the outsides of the circumferential wall (21a) and the first ribs (24) of each of the teeth (13). The annular members (31) close teeth distal end sides of cavities (40). A first hole (25) and a second hole (26) are provided in the plate wall (22). The turning passage (50) contains varnish (60) charged through the injection hole (25).

Kurzschlussläufer für elektrische Maschinen.

Verfahren zur Herstellung der Nutenisolation elektrischer Maschinen.

Nutisolation für elektrische Maschinen.

Nutisolation für elektrische Maschinen und Apparate.

Motore elettrico

Isolationskörper zur Isolierung der Statornuten von Motoren und Verfahren zu seiner Herstellung und Mittel zur Ausführung des Verfahrens

Machine électrique rotative

Verfahren zum Isolieren von Ankern kleiner Elektromotoren.

Isolierende Nuteneinlage

Elektrisches, durch einen Gleichstrommotor angetriebenes Handgerät

Rasoio elettrico

NUTENISOLATION FUER STATOREN UND ROTOREN ELEKTRISCHER MASCHINEN.

NUTEINLAGE FUER DEN NUTENGRUND VON STAENDERWICKLUNGSNUTEN ELEKTRISCHER MASCHINEN.

Induit de moteur électrique à collecteur

Elektrische Maschine, deren Betriebsfrequenz über den Normalfrequenzen von 50 oder 60 Hz liegt

Procédé de fabrication d'un noyau magnétique pour un dispositif électromagnétique

Precompressed insulating board - has central insulating foil flanked by fibre mat layers partly free from impregnating compound

Precompressed electrical insulating board for the slots of electrical machinery is laminated from a puncture-proof temp-resistant and homogeneous insulating foil in the centre. It is covered by protective fibre mat layers, followed on the outside by fibre-reinforced laminated carriers with an epoxy resin bonding agent. These layers are joined in such a way that some of the fibre mat layer parallel to the lamination retain a mat structure free from impregnation. This produces a stiff laminate with excellent electrical properties for large electrical machines. IT has a much higher static and dynamic resistance to mechanical loads without forming any crack than the conventional laminates with fibre-resin-reinforced carrier layers.

MANUFACTORING PROCESS OF STATORS FOR ENGINES STEP BY STEP OF WATCHES ELECTRONIC, AND ENGINE CARRIED OUT ACCORDING TO THE PROCESS.

PROCEDURE FOR THE PRODUCTION OF WINDINGS FUER ELECTRICAL MACHINES AND APPARATUSES.

Device for axially securing slot liners in a turbogenerator of horizontal or vertical type

HAND DRILL WITH ELECTRICAL DRIVING MOTOR.

DIRECT CURRENT GENERATOR-ELECTRICAL MACHINE ALSO IN ROTOR SLOTS OF EMBEDDED COIL.

Flächenförmiger insulant body for electrical machines or apparatuses, in particular groove isolation.

AS COMPOUND WORKPIECE TRAINING GROOVE REINFORCING AND UNTERNUTABDECKUNG FOR AN DIRECT CURRENT GENERATOR-ELECTRICAL MACHINE.

DIRECT CURRENT GENERATOR-ELECTRICAL MACHINE.

Slot liner insulation used in e.g. heavy current generator, which will not distort in high humidity environment

The synthetic paper contains fibers of two types, both orientated predominantly parallel to the surface of the paper. Fibers of the first type have the higher dielectric strength. Change in moisture content of the second type, causes transverse dimensional variation, which exceeds the corresponding longitudinal variation. POLYMERS - The artificial paper comprises a polymer sheet based on polyimide, polyester or polycarbonate. First and second fibers are each polymers based on an aromatic polyamide.

Leader staff for the stator of a generator as well as procedure for its production.

Ein Leiterstab (10) für den Stator eines Generators umfasst eine Mehrzahl von innenliegenden Teilleitern (11), die aussen von einer Isolierung (12) umgeben sind, welche um die Teilleiter (11) herum gewickelte und imprägnierte Glas/Glimmer-Bänder (13) umfasst. Zur Verbesserung der mechanischen Haftung zwischen den Teilleitern (11) und der Isolierung (12) ist zwischen der Isolierung (12) und den Teilleitern (11) wenigstens eine Zwischenlage (17) vorgesehen.

Conductor rod for the stator of a generator, and method for the production thereof

A conductor bar (10) for the stator of a generator comprises multiple internally positioned partial conductors (11) which are surrounded externally by an insulation layer (12) comprising impregnated glass/mica bands (13) wound around the partial conductors (11). To improve the mechanical adhesion between the partial conductors (11) and the insulation layer (12), at least one intermediate layer (17) is provided between the insulation layer (12) and the partial conductors (11).

Motor bobbin and method for manufacturing same

Coil framework, iron core of bearing, electric connecting part, bearing and magnetic suspension motor

Used for the winding of the motor in the frame and winding device

Stator for an electric motor

... 用于电机的定子具有叠片组并且在该叠片组的端侧上具有绝缘叠片，所述绝缘叠片与接线盘相连接。在所述接线盘中设置第安装凹部，并且在所述绝缘叠片中设置第二安装凹部，它们彼此对准。 ...

Insulations of notches for electric machines

DEVICE Of INSULATION Of NOTCH FOR ELECTRIC REVOLVING MACHINE, AND ITS MANUFACTORING PROCESS

HOLDING FIXTURE Of an INSULATOR FOR ROTOR OF Electrical motor.

SLOT LINERS FOR AN ELECTRIC MACHINE

Caniveau d'encoche (40) pour un stator et un rotor d'une machine électrique (10), comportant un corps (54) conçu pour être logé dans une encoche du stator et/ou dans une encoche (48) du rotor, et s'étendant dans la longueur, d'une première extrémité (58) à une seconde extrémité opposée (60), et dans la largeur, d'un premier bord (62) à un second bord opposé (64) et comprenant un segment intérieur (70) et un premier et un second segments extérieurs (72, 74) qui s'étendent sur la longueur du corps (54). Les premier et second segments extérieurs (72, 74) bordent le segment intérieur (70) de telle manière que le segment intérieur (70) s'étende entre les premier et second segments extérieurs (72, 74) sur la longueur du corps (54). Le segment intérieur (70) comprend une matière différente de la matière des premier et second segments extérieurs (72, 74), de façon à présenter une conductivité thermique plus grande que celle des premier et second segments extérieurs (72, 74).

Device for mounting and insulating conductors on the rotors of electric rotating machines

IMPROVEMENTS WITH THE MEANS TO RETAIN CONDUCTING BARS IN NOTCHES OF WINDING OF CORES OF ROTORS OR STATORS OF MACHINES DYNAMOELECTRIQUES

MIXED COIL INSULATING AND ELECTRICAL MACHINE ELEMENT THEREFOR

L'invention porte sur un isolant (20) de bobine destiné à être positionné autour d'une dent (14) d'un stator ou d'un rotor d'une machine électrique. Conformément à l'invention, l'isolant (20) est formé d'une part par un corps (23) de l'isolant comportant un cadre (24) en matériau rigide ayant deux fenêtres latérales (243, 244); et d'autre part par un élément (25) rapporté en matériau souple moins épais et meilleur conducteur de chaleur que le matériau du corps (23). Cet élément (25) comporte deux parois latérales (253, 254) destinées à être positionnées en regard des fenêtres latérales (243, 244) du cadre (24). Le corps (23) comporte des fentes (27) pour l'insertion de l'élément (25) en matériau souple.

METHOD AND APPARATUS FOR INSULATING A COIL NOTCHES FOR HAIRPIN OF A ROTATING ELECTRIC MACHINE

ALTERNATOR FOR VEHICLE HAS NOISE OF REDUCED OPERATION

SLOT LINER IMPROVES AND STATOR COMPRISING SUCH SLOT LINERS

ROTATING ELECTRICAL MACHINE HAVING A STATOR WITH A WINDING PINHOLE

Machine électrique tournante comprenant: -un rotor tournant autour d'un axe -un stator entourant ledit rotor, l'espace entre le rotor et le stator définissant un entrefer de la machine, le stator comprenant des encoches (103), chacune des encoches comprend des emplacements (108, 109) pour recevoir des épingles, dans laquelle pour chaque encoche (103), lesdits emplacements (108, 109) sont alignés de sorte que seul un emplacement dit emplacement bas (108) est contigu de l'entrefer et au moins un autre emplacement dit haut (109) n'est pas contigu de l'entrefer, lesdits emplacements haut et bas (108, 109) recevant chacun une branche d'épingle avec un jeu d'insertion. Il est prévu que l'encoche (103) est de forme trapèze de sorte que le jeu d'insertion des au moins un emplacement haut (109) de l'encoche soit supérieur au jeu d'insertion de l'emplacement bas (108) de l'encoche.

INSULATING ELEMENT PROVIDED WITH HOLDING HOOKS OF MAGNET WIRES OF A STATOR OF AN ELECTRIC MACHINE AND ASSOCIATED STATOR

L'invention porte principalement sur un élément isolant (11) de maintien de fils de bobinage pour un stator (1) de machine électrique tournante. Conformément à l'invention, cet élément isolant (11) comporte un support annulaire (12) ayant une face interne d'appui (18) adaptée à être plaquée contre une face radiale d'extrémité (19) du stator (1) ainsi que des crochets (31), chaque crochet (31) délimitant, avec une face externe (20) du support opposée à la face interne d'appui (18), un espace autorisant un passage d'une extrémité (33) d'au moins un fil d'une bobine (24) pour son maintien lors d'une opération de bobinage.

STATOR FOR AN ELECTRIC MACHINE WITH FILLING NOTCHES AND CORRESPONDING METHOD OF CONSTRUCTING SAME

L'invention porte principalement sur un stator (15) de machine électrique tournante comportant un corps (16) muni d'une culasse et de dents (25) délimitant deux à deux des encoches (28) ainsi qu'un bobinage comportant des conducteurs ayant des structures de segment (38) insérées à l'intérieur des encoches (28), caractérisé en ce qu'un rapport entre une largeur d'encoche (L1) recouverte d'un isolant d'encoche (145) et une largeur de structure de segment (38) recouverte d'émail (L2) est compris entre 0,9 et 2.

Pin coil notches insulating method for rotating electric machine e.g. generator, involves using tubular insulating unit as envelope for notch, where tubular unit is put in rectangular shape with four folds without discontinuity

Procédé d'isolation d'encoches pour un bobinage en épingle logé dans le circuit magnétique d'une machine électrique tournante, et utilisant pour au moins une encoche, une enveloppe en matière électriquement isolante, épousant la forme interne rectangulaire de l'encoche, et autorisant l'insertion axiale des conducteurs du bobinage. On utilise pour l'enveloppe un élément isolant 33 tubulaire, lequel est ensuite mis en forme rectangulaire sans discontinuité avec formation de quatre plis.

DEVICE Of INSULATION OF the STATOR Of an Electrical motor

Structures electromagnetic and manufactoring process

DYNAMOELECTRIC MACHINE STATOR CORE WITH MINI CAPS

MOTOR UNIT HAVING INSULATION MEMBER

According to one embodiment of the present invention, a motor unit having an insulation member comprises: rotor cores radially formed on an outer circumferential surface of a motor shaft and having a slot formed therebetween; and shoes installed in a rotating or reverse-rotating direction of the motor shaft in each outer end part of the rotator cores and having an exposure path therebetween. The slot includes: a bottom surface formed in a motor shaft side; a first and a second inner surface connected to the bottom surface, and formed along the rotting and the reverse-rotating direction of the motor shaft in an inner side of the slot; and an insulation member being in close contact with the first and the second inner surface of the shoes facing the bottom surface, and installed to close at least a part of the exposure path. COPYRIGHT KIPO 2016 ...

브러시리스 모터 및 이의 제조방법

... 신뢰성 및 제조성을 향상시킨 브러시리스 모터 및 그 제조방법을 제공한다. 스테이터는 스테이터 코어(35), 스테이터 코어(35)에 부착된 절연체(36), 선재(37), 중간단자, 및 단자부를 구비한다. 선재(37)는 일방의 피권회부(63)에 일단측이 감기고 또한 타방의 피권회부(64)에 타단측이 감겨 스테이터 코어(35)의 일방 및 타방의 코어 티스부(45), (46)에 서로 극성이 다른 자극을 발생시키는 일방 및 타방의 코일(78), (79)을 각각 형성한다. 선재(37)는 양단부가 유지부(67)에 각각 유지되고, 일방 및 타방의 코일(78), (79)의 중간부가 중간 유지부(66)에 유지된다. 중간단자는 중간 유지부(66)에 설치되어 선재(37)와 전기적으로 접속된다. 단자부는 유지부(67)에 설치되어 선재(37)의 양단부와 전기적으로 접속된다.

세그먼트 브러쉬리스 고정자 상호 연결 시스템

... 전기 모터의 고정자가 제공된다. 고정자는 복수개의 세그먼트들로서, 각각의 세그먼트들이 자기 투과성 재료를 가지는 치를 포함하는, 복수개의 세그먼트들; 치를 둘러싸는 전기 코일 및, 적어도 하나의 절연체를 포함한다. 고정자는 복수개의 커넥터들 및 회로 보드도 포함하며, 각각의 커넥터는 제 1 및 제 2 터미널들을 포함하고, 제 1 터미널은 적어도 하나의 절연체로 삽입되고 복수개의 세그먼트들 각각의 전기 코일에 결합되도록 구성되고, 회로 보드는 입력 파워 라인들에 결합되고 복수개의 커넥터들의 제 2 터미널을 수용하도록 구성된 통공들을 구비한다. 제 2 터미널들이 통공들 안에 수용될 때 회로 보드는 복수개의 세그먼트들 각각의 전기 코일에 결합된다.

Electric motor

It is an object of the invention to secure an insulation distance between a stator and a rotor without reducing a region of a slot of a stator core in which a winding is installed. The representative electric motor includes a cylindrical stator core 131 fixed to a motor housing, a rotor 120 rotatably housed within a housing part 132 in a bore of the stator core 131, pole pieces 133, 134 extending from an inner wall 131 a of the stator core 131, rotor opposed surfaces 133 a, 134 a of the pole pieces 133, 134 which are opposed to the rotor 120, inner-wall opposed surfaces 133 b, 134 b of the pole pieces 133, 134 which are formed on a side opposite to the rotor opposed surfaces 133 a, 134 a and opposed to the inner wall 131 a of the stator core 131, a slot 135 which is defined between the inner wall 131 a of the stator core 131 and the inner-wall opposed surfaces 133 b, 134 b of the pole pieces 133, 134 and in which the winding 137 is installed, a first insulating sheet 141 which is disposed in the slot 135 and insulates the winding 137 from the stator core 131, a space 138 which is defined between the slot 135 with the winding 137 installed therein and the housing part 132 with the rotor 120 housed therein, and a second insulating sheet 142 which is disposed in the space 138 and insulates the winding 137 from the rotor 120.

Compressor

A compressor includes a casing and a motor disposed inside the casing. The motor is welded to the casing at a plurality of weld positions. The motor includes a core, a coil, at least one insulating member and a gap. The core has an annular back yoke portion, a plurality of tooth portions projecting radially inwardly from the back yoke portion and a slot formed between the tooth portions adjacent to each other. The coil is disposed in the slot. The insulating member is disposed in the slot to insulate the coil from the core. The gap is provided between the back yoke portion and the insulating member.

Conductor insulation arrangement for electric machine winding

An electric machine includes a core with a plurality of slots. A plurality of conductors are positioned in each of the plurality slots, with each slot including an equal number of conductors. At least one slot liner is also positioned in each of the plurality of slots. Each slot liner provides at least one slot liner channel in the associated slot, and each of the plurality of conductors extend through one of the slot liner channels. Differing numbers of slot liner channels are provided in the plurality of slots. Accordingly, all slots have the same number of conductors positioned therein, but all slots do not have the same number of slot liner channels.

Slot Liner and Interphase Insulator Combination

Electrically insulating material so foldable as to form a slot liner and an interphase insulator combination so configured as to be inserted in the slots of the stator or the rotor of an electric machine to prevent coils from being in contact with the slot walls and to prevent separate coils inserted in the same slot to be in direct contact with one another is described herein. 1. A slot liner and interphase insulator made of a insulating material and configured and sized to enter the longitudinal slot of an electric machine and to electrically insulate a first and a second coil from one another and from the electric machine; the insulator comprising:a short side wall;a bottom wall; anda long foldable side wall including three longitudinal fold lines defining first, second, third and fourth long side wall portions;wherein, when the slot liner and interphase insulator is inserted in the slot of an electric machine, a) the first long side wall portion insulates a portion of the first coil from the electric machine; b) the second and third long side wall portions insulate the first and second coils from one another, and c) the fourth long side wall portion insulates a portion of the second coil from the electric machine.2. The slot liner and interphase insulator recited in claim 1 , further comprising a fold line separating the short side wall and the bottom side wall.3. The slot liner and interphase insulator recited in claim 1 , further comprising a fold line separating the bottom wall and the long foldable side wall.4. The slot liner and interphase insulator recited in claim 1 , wherein the slot liner and interphase insulator is made of insulating paper material.5. The slot liner and interphase insulator recited in claim 1 , wherein at least one of the second and third long side wall portions includes a longitudinal projection so configured and sized as to cover the coil heads to insulate the heads of the first and second coils from one another.6. The slot liner and ...

Dry Mica Tape, Electrically insulated Coil Using the Same, and Electrical Rotating Machine Using the Same

The purpose of the present invention is to provide a dry mica tape, and an electrically insulated coil using the same, and a electrical rotating machine using the same, with reduced amount of VOC (Volatile Organic Compound) generated during manufacturing thereof, while both of excellent impregnation property and excellent heat resistance are achieved. The dry mica tape, and the electrically insulated coil using the same, and the electrical rotating machine using the same, the dry mica tape including mica, a substrate, an adhesive which glues the mica and the substrate together, in which the adhesive includes unsaturated polyester compound which has a reactive double bond. 1. A dry mica tape , comprisingmica, a substrate, and an adhesive which glues the mica and the substrate together, whereinthe adhesive includes unsaturated polyester compound which has a reactive double bond.2. The dry mica tape as set forth in claim 1 , wherein the reactive double bond is a double bond formed between two carbon atoms claim 1 , and is an aliphatic carbon-carbon double bond.3. An electrically insulated coil claim 1 , comprising a member which is prepared by impregnating unsaturated polyester varnish which contains not more than 1% claim 1 , by weight of styrene in a total amount of the varnish claim 1 , into the dry mica tape as set forth in claim 1 , and by curing the varnish.4. An electrically insulated coil claim 2 , comprising a member which is prepared by impregnating unsaturated polyester varnish which contains not more than 1% by weight of styrene in a total amount of the varnish claim 2 , into the dry mica tape as set forth in claim 2 , and by curing the varnish.5. The electrically insulated coil as set forth in claim 3 , wherein a viscosity of the unsaturated polyester varnish is not more than 0.5 Pa·s at 40° C.6. A electrical rotating machine claim 3 , comprisinga stator coil and a rotor coil, wherein{'claim-ref': {'@idref': 'CLM-00003', 'claim 3'}, 'the stator coil and ...

Stator Of An Electric Machine With Voltage Insulation

A stator of a rotating electric machine includes a circular stator lamination stack having stator teeth projecting radially therefrom and distributed over the circumference and axial slots formed between the teeth. The stator carries a winding of an insulated conductor which is designed for the application of a maximum electric voltage in the low-voltage range up to about 1 kV. The winding is constructed as concentric winding in the form of individual tooth coils, and voltage insulating material is provided inside the slots between the teeth and the winding. To reduce the electric field strength in manufacture-induced voids of the varnish-impregnated or resin-impregnated stator, the voltage insulating material comprises an areally shaped layer of a high-resistance conductive material. 1. A stator of a rotating electric machine comprising:{'b': 12', '14', '20', '14, 'a circular stator lamination stack () having stator teeth () projecting radially therefrom and distributed over the circumference thereof; axial slots () formed between said stator teeth ();'}{'b': 24', '24', '24', '26, 'i': a', 'c, 'a winding () of an insulated conductor carried by said stator and designed for the application of a maximum electric voltage in the low-voltage range up to about 1 kV, said winding () constructed as concentric winding () in the form of individual tooth coils (-);'}{'b': 28', '26', '22', '30, 'voltage insulating material () provided inside said slots () between at least one of said teeth and said winding and said winding and said slot bottom (), said voltage insulating material comprising an areally shaped layer of a high-resistance conductive material ().'}23030a, b. The stator according to claim 1 , wherein said high-resistance conductive material () is a conductive varnish ().33012. The stator according to claim 1 , wherein said high-resistance conductive material () is applied to said stator lamination stack ().43230. The stator according to one of claim 1 , additionally ...

STATOR AND PROTECTING MEMBER FOR STATOR

There is provided a stator that can suppress degradation in insulating performance and electrical strength performance, shorten a work time, and improve winding efficiency and heat radiation. The stator includes a yoke part formed to be annular, a plurality of tooth parts protruding from the yoke part in an inward direction perpendicular to an axial direction O of a rotor when the rotor is arranged in the yoke part , and protecting members each of which is attached to both end surfaces of the tooth part in the axial direction O to protect a corner of the tooth part . The protecting members have a length in a slot between the tooth parts shorter than a half of an entire length of the tooth part in the axial direction. 1. A stator comprising:a yoke part formed to be annular;a plurality of tooth parts protruding from the yoke part in an inward direction perpendicular to an axial direction of a rotor when the rotor is arranged in the yoke part; anda protecting member attached to both end surfaces of one of the tooth parts in the axial direction to protect a corner of one of the tooth parts, the protecting member having a length in a slot between the tooth parts, shorter than a half of an entire length of the tooth parts in the axial direction.2. The stator according to claim 1 , wherein the protecting member is located only outer side of the tooth parts in the axial direction.3. The stator according to claim 1 , wherein the protecting member is formed to have U-shape bridging both slots adjacent to the tooth part claim 1 , and end portions of the protecting member are located in the slots respectively.4. The stator according to claim 1 , wherein the yoke part and the tooth parts are formed by stacking a plurality of steel plates.5. A protecting member for a stator claim 1 , being attached to the stator including a yoke part formed to be annular claim 1 , and including a plurality of tooth parts protruding from the yoke part in an inward direction perpendicular to an ...

Method for manufacturing stator, apparatus for manufacturing stator, and stator

A method for manufacturing a stator includes preparing a stator core having a plurality of teeth, a plurality of coils having a plurality of lead lines, a substrate having a plurality of connecting portions, and a plurality of positioning jigs having restraining portions. The method includes positioning the substrate and the lead lines so that distal portions of the lead lines are separated from the connecting portions in at least one of a radial direction and a circumferential direction. The method further includes inserting the lead lines in the restraining portions, aligning the distal portions of the lead lines with the corresponding connecting portions using the positioning jigs, inserting the lead lines into the corresponding connecting portions, and electrically connecting the lead lines inserted in the connecting portions to the corresponding connecting portions.

ELECTRIC MOTOR

An electric motor is provided with a rotator and a stator disposed on an outer diameter side of the rotator. The stator includes a cylindrical stator iron core provided with a plurality of teeth radially projecting from an inner circumferential side of an annular yoke toward a center, insulators made of an insulation material disposed on both ends of the stator iron core in an axial direction, and lead wire wound around the teeth via the insulators . First grooves to disposed on an inner circumferential side of the insulator and second grooves to disposed on an inner circumferential side of the stator iron core are formed to communicate with each other. A part of a connection line connecting the windings with each other is embedded in the first grooves and the second grooves. 1. An electric motor comprising:a rotator; anda stator disposed on an outer diameter side of the rotator, a cylindrical stator iron core provided with a plurality of teeth radially projecting from an inner circumferential side of an annular yoke toward a center;', 'insulators made of an insulation material disposed on both ends of the stator iron core in an axial direction; and', 'windings wound around the teeth via the insulators,', 'wherein the insulator includes a first groove disposed on an inner circumferential side thereof along an axial direction,', 'wherein the stator iron core includes a second groove disposed on an inner circumferential side thereof along the axial direction, and', 'wherein the first groove and the second groove are disposed so as to communicate with each other in the axial direction, and the first groove and the second groove which communicate with each other embed therein a part of a connection line connecting the windings mutually., 'wherein the stator includes2. The electric motor according to claim 1 , wherein the electric motor is a polyphase alternating current electric motor claim 1 ,wherein the windings of a same phase wound around the teeth and the ...

Armature and motor

An insulator of an armature includes an upper resin member and a lower resin member. Each of the upper and lower resin members includes decreased thickness portions. Axial positions of the decreased thickness portions of the upper and lower resin members are arranged to overlap at least partially with each other. Each of the upper and lower resin members further includes a rib arranged to project from a corresponding one of the decreased thickness portions. The rib improves the strength of the corresponding decreased thickness portion and reduces the likelihood that any of the decreased thickness portions of the upper and lower resin members will be damaged when the two members are fitted to each other.

Armature and motor including armature

An armature includes an insulator mounted on a tooth portion around which a conducting wire is wound. A pair of a first member and a second member, which are combined so as to abut each other, is provided. The first member includes a first end wall which covers an upper side end in the axial direction of the tooth portion and a pair of first side walls which partially cover both side portions of the tooth portion. A first overlap portion is provided on a tip portion of the first side wall. A plurality of ribs extending so as to be parallel or substantially parallel to the winding direction of the conducting wire is disposed on an outer surface of the first overlap portion.

Electrical machine coil insulation system and method

An insulation system and method are disclosed for insulating formed coils of electrical machines, such as motors and generators. The system includes strand/turn insulation that may include one or more layers of different materials, depending upon the dielectric requirements. A ground wall insulation is applied over the group of turns. The coil may be sized in a slot cell section. Additional insulation layers are provided, including a slot corona suppression insulation that extends just beyond stator slots, a voltage grading layer, and an armor layer. The resulting system is highly adaptable to different machine designs and ratings, and affords superior resistance to degradation.

Armature of linear motor, linear motor and method of manufacturing armature

An armature of a linear motor is provided. The armature includes an armature core having a plurality of teeth arranged linearly and spaced at predetermined intervals, and a plurality of bobbins fitted onto adjacent teeth, each of the bobbins having flange parts, a winding being wound around the bobbin to form a coil. At least one of the flange parts of the bobbin is formed with a first protrusion and a second protrusion. An overlapped section is formed by the first and second protrusions of two adjacent bobbins contacting or overlapping with each other.

MOLDED MOTOR

A molded motor includes an annular yoke part, a stator including a stator core having, a plurality of teeth parts extending from an inner peripheral surface of the annular yoke part toward a center thereof, an insulator covering the stator core, an outer shell formed around the stator core and the insulator and made of resin, a rotor coaxially disposed at the center of the stator, a connecting wire guide provided on the insulator to stand in an axial direction of the stator core at a position corresponding to an engagement recess of an outer peripheral part of the outer shell, and a connecting wire guided by the connecting wire guide. A crimped part of a bracket adapted to be attached to an end face of the stator is engaged with the engagement recess when a part of a side end face of the bracket is crimped and secured. 1. A molded motor comprising:an annular yoke part,a stator including a stator core having a plurality of teeth parts extending from an inner peripheral surface of the annular yoke part toward a center thereof,an insulator insulatably covering the stator core with teeth surfaces of the teeth parts,an outer shell formed around the stator core and the insulator and made of resin, said outer shell having an engagement recess :formed on an outer peripheral surface thereof,a rotor coaxially disposed at the center of the stator,a connecting wire guide provided on the insulator to stand in an axial direction of the stator core at a position corresponding to the engagement recess,a connecting wire guided by the connecting wire guide, anda bracket having a crimped part attached to an end face of the stator, said crimped part engaging with the engagement recess when a part of a side end face of the bracket is crimped and secured,wherein the engagement recess is formed in concurrence with formation of the outer shell on the outer peripheral surface of the outer shell.2. The molded motor according to claim 1 , wherein the connecting wire guide has a side surface ...

ON-VEHICLE ROTARY ELECTRIC MACHINE AND ELECTRIC POWER STEERING SYSTEM

An electrical motor includes: a cylindrical stator core arranged so as to surround a periphery of a rotor via a space, and having a plurality of teeth formed in an inner periphery thereof; a bobbin installed in each of the plurality of teeth; a coil wound around each of the bobbins installed in the teeth; a bottomed cylindrical chassis having a bottom faced with one of end portions in the axial direction of the stator core, and holding an outer periphery of the stator core; and a busbar mold provided with a busbar terminal. An engaging hole is formed at least in either the bottom or the busbar mold at a position facing the bobbin, and an engaging projection that engages with the engaging hole is formed in an opposing part that faces the engaging hole in the bobbin. 1. An on-vehicle rotary electric machine , comprising:a rotor;a cylindrical stator core arranged so as to surround a periphery of the rotor via a space, and having a plurality of teeth formed in an inner periphery thereof;a bobbin installed in each of the plurality of teeth;a stator coil wound around each of the bobbins installed in the teeth;a bottomed cylindrical chassis having a bottom faced with one of end portions in the axial direction of the stator core, and holding an outer periphery of the stator core; anda terminal layout board provided with a terminal to which a lead wire of the stator coil is connected, arranged to face the other end portion in the axial direction of the stator core, and fixed to the chassis, whereina first engaging portion is formed at least in either the bottom or the terminal layout board at a position facing the bobbin, anda second engaging portion that engages with the first engaging portion is formed in an opposing part that faces the first engaging portion in the bobbin.2. The on-vehicle rotary electric machine according to claim 1 , whereinthe first engaging portion of the terminal layout board is a hole that passes therethrough,the bobbin is formed of resin, and as ...

EXPANSION SHEET FOR ROTARY ELECTRIC MACHINE, STATOR FOR ROTARY ELECTRIC MACHINE USING THE SAME, AND MANUFACTURING METHOD OF STATOR FOR ROTARY ELECTRIC MACHINE

In an expansion sheet for a rotary electric machine that has a thermal expansion property and is to be arranged between a core and a coil conductor in a slot in the rotary electric machine, in which the coil conductor is housed in the slot formed in the core, the expansion sheet has a first surface and a second surface and includes: a first surface-side portion; and a second surface-side portion that is closer to the second surface than the first surface-side portion, wherein an amount of volume increase, caused by heating, of the first surface-side portion is higher than an amount of volume increase, caused by the heating, of the second surface-side portion. 1. An expansion sheet for a rotary electric machine that has a thermal expansion property and is to be arranged between a core and a coil conductor in a slot in the rotary electric machine , in which the coil conductor is housed in the slot formed in the core , the expansion sheet having a first surface and a second surface and comprising:a first surface-side portion; anda second surface-side portion that is closer to the second surface than the first surface-side portion, whereinan amount of volume increase, caused by heating, of the first surface-side portion is higher than an amount of volume increase, caused by the heating, of the second surface-side portion.2. The expansion sheet according to claim 1 , whereinthe first surface is a surface to be positioned on a side, on which the coil conductor is located, andthe second surface is a surface to be positioned on a side, on which the core is located.3. The expansion sheet according to claim 1 , whereinthe first surface-side portion of the expansion sheet includes a first surface-side expansion layer having a sheet center portion and a sheet edge portion that is provided at an outer periphery of the sheet center portion, andan amount of volume increase, caused by the heating, of the sheet edge portion is lower than an amount of volume increase, caused by the ...

Electric motor and fuel pump using the same

An electric motor has multiple core portions, multiple bobbins covering the respective core portions, and multiple coil windings wound on the respective core portions and bobbins. Each of the bobbins has a first and a second circumferential forward ends, at which a first and a second holding portions are formed. The first holding portion holds a winding-start portion and the second holding portion holds a winding-end portion. The winding-start portion is prevented from being brought into contact with the winding-end portion and main winding portion of the coil winding between the winding-start portion and the winding-end portion.

INTERLOCKING COIL ISOLATORS FOR RESIN RETENTION IN A SEGMENTED STATOR ASSEMBLY

A stator assembly of an electric machine includes a segmented lamination stack formed of an interconnected series of lamination segment stacks, and a plurality of coil isolators each having a conductor wound thereon, each having a radially outward interlock at each circumferential end thereof, and each having a radially inward interlock at each circumferential end thereof, the coil isolators being serially connected by the interlocks to form a cavity closed down the axial length of the stator assembly, the coil isolators electrically insulating the lamination segments from the conductors. 1. A stator assembly of an electric machine , comprising:a segmented lamination stack formed of an interconnected series of lamination segment stacks; anda plurality of coil isolators each having a conductor wound thereon, each having a radially outward interlock at each circumferential end thereof, and each having a radially inward interlock at each circumferential end thereof, the coil isolators being serially connected by the interlocks to form a cavity closed along the axial length of the stator assembly, the coil isolators electrically insulating the lamination segments from the conductors.2. The stator assembly of claim 1 , further comprising a first end cover engaged with the coil isolators and closing an axial end of the cavity.3. The stator assembly of claim 2 , wherein the first end cover comprises a motor cover.4. The stator assembly of claim 2 , wherein the first end cover is independent of a motor cover.5. The stator assembly of claim 2 , wherein the first end cover includes a bus bar electrically connecting selected ones of the conductors.6. The stator assembly of claim 1 , further comprising a bus bar electrically connecting selected ones of the conductors.7. The stator assembly of claim 6 , further comprising a substantially annular claim 6 , perforated isolation ring for electrically isolating the conductors from the bus bar while fluidly connecting an axial end of ...

INTEGRATED PHASE CONNECTION ISOLATOR WITH INDIVIDUAL PHASE ISOLATOR

A stator assembly includes a coil isolator having a first flange, a phase separator, and a living hinge connecting the first flange and the phase separator, the coil isolator structured for enclosing a stator lamination stack and for winding a coil thereon in electrical isolation from the stack, the phase separator being radially closeable for enclosing a portion of the coil within the coil isolator. A method of forming a stator includes placing an isolator onto a lamination stack segment, winding a coil onto the isolator, folding a phase separator of the isolator to enclose a portion of the coil, and placing a plurality of bus bars onto the phase separator in physical partition from one another. A method of insulating a phase bus from a stator coil includes forming a coil insulator having a bobbin, a phase separator, and a living hinge coupling the bobbin to the phase separator. 1. A stator assembly of an electric machine , comprising a coil isolator having a first flange , a phase separator , and a living hinge connecting the first flange and the phase separator , wherein the coil isolator is structured for enclosing a portion of a stator lamination stack and for winding a coil thereon in electrical isolation from the stack , the phase separator being radially closeable for enclosing a portion of the coil within the coil isolator.2. The stator assembly of claim 1 , further comprising a latch structured for securing the phase separator in a closed position.3. The stator assembly of claim 1 , wherein the living hinge is formed as a series of individual living hinges.4. The stator assembly of claim 3 , wherein respective dimensions of the individual living hinges vary according to a force distribution profile for the series.5. The stator assembly of claim 4 , wherein the force distribution profile is based on temperature-related properties of hinge materials.6. The stator assembly of claim 4 , wherein the force distribution profile is based on at least one of ...

Stator of rotary electric machine, and manufacturing method therefor

A stator of a rotary electric machine, in which an insulating capacity higher than or equal to an insulating capacity of a flat portion of a stator core can be maintained at edge portions of the stator core. The stator of the rotary electric machine includes a core-sheet laminate that is formed by laminating a plurality of core sheets made of metal plates; a coating film that is made of an insulating paint coated on a surface of the core-sheet laminate; a stator coil that is made of a conductive wire wound around the core-sheet laminate via the coating film; and bobbins made of an insulating material, which are inserted between the coating film and the stator coil and prevent the conductive wire of the stator coil from contacting the coating film that is coated on edge portions of the core-sheet laminate, or relieve pressure caused by the contact.

ELECTRIC ROTATING MACHINE

The electric rotating machine has the structure in which, for each one of the slots formed in its stator core, each of the innermost and outermost electrical conductors housed in the slot includes a R-chamfered portion formed in a bent portion thereof projecting outside from the slot and bent along a circumferential direction of the stator core. The R-chamfered portion is located at a radially inner or outer corner of the bent portion at which a side surface of the bent portion on the side being circumferentially bent intersects with a side surface of the bent portion on the radially inner or outer side. The R-chamfered portion is formed of a curved surface having a curvature radius larger than a curvature radius of the other three corners of the bent portion. 1. An electric rotating machine comprising:a rotor; anda stator including a stator core disposed so as to radially face the rotor and formed with slits axially extending and circumferentially arranged, a stator winding constituted of electrical conductors having a rectangular cross section and wound in the slots such that a predetermined number of the slots are radially arranged in each of the slots, and an insulating sheet member folded into a shape of a square tube and disposed in each of the slots so as to be interposed between an inner wall of the slot and the electrical conductors housed in the slot,wherein, for each of the slots,an innermost one of the predetermined number of the electrical conductors housed in each slot, which is disposed on the radially innermost side of the slot, includes one of a first R-chamfered portion and a first flat C-chamfered portion formed in a first bent portion thereof projecting outside from the slot and bent along a circumferential direction of the stator core, the first R-chamfered portion being located at a radially inner corner of the first bent portion at which a side surface of the first bent portion on the side being circumferentially bent intersects with a side ...

BRUSHLESS MOTOR, STATOR, STATOR MANUFACTURING METHOD AND BRUSHLESS MOTOR MANUFACTURING METHOD

A brushless motor comprising: a rotor; a stator core disposed at a radial direction outside of the rotor, and a stator case. The stator core includes an outer ring shaped section, teeth sections projecting out from the outer ring shaped section toward a radial direction inside, and an inner ring shaped section extending from end portions of the teeth sections. Protruding portions are formed at the outer ring shaped section so as to project toward a radial direction outside and so as to be disposed at even intervals around a circumferential direction of the outer ring shaped section. The stator case is integrated together with the stator core by a plurality of plastic deformation portions formed at an outer peripheral portion of the stator case at locations facing towards the protruding portions, and the plastic deformation portions are disposed at even intervals along a circumferential direction of the stator case. 1. A brushless motor comprising:a rotor that includes a rotation shaft section that is supported so as to be rotatable about its axial line and magnets that are disposed along a circumferential direction of the rotation shaft section; an outer ring shaped section that is formed in a ring shape,', 'teeth sections that project out from the outer ring shaped section toward a radial direction inside of the outer ring shaped section and are wound with conductive wire coils, and', 'an inner ring shaped section that is configured by rotor-side faces that extend from end portions of the teeth sections, the end portions being adjacent to the rotor, along a rotor circumferential direction and configure circular arc shaped faces with the rotor as the axial center, wherein', 'protruding portions are formed at the outer ring shaped section so as to project toward a radial direction outside of the outer ring shaped section and so as to be disposed at even intervals around a circumferential direction of the outer ring shaped section as viewed along an axial direction of ...

ROTARY ELECTRIC MACHINE

A rotating electric machine includes a rotor, and a stator that has a stator core and a stator winding. The stator core has a plurality of slots. The stator winding is wound around the stator core as a plurality of electrical conductors is aligned in the radial direction in the slots. The stator has an insulating sheet member that is bent in a rectangular cylindrical shape, and is intervened between the electrical conductor and an inner wall surface of the slot. A length of a bend line formed extending in the axial direction on the insulating sheet member from a reference position in a central section of the insulating sheet member in the axial direction to a tip in the axial direction is configured shorter than a length from the reference position to an end in the axial direction of the sheet member. 1. A rotating electrical machine comprising:a rotor, anda stator that has a stator core and a stator winding; wherein,the stator core is disposed in a radial direction facing the rotor and has a plurality of slots extending in an axial direction, and arranged in a circumferential direction;the stator winding is wound around the stator core as a plurality of electrical conductors and is aligned in the radial direction in the slots;the stator has an insulating sheet member that is bent in a rectangular cylindrical shape to match a sectional shape of the slot, and is intervened between the electrical conductor and an inner wall surface of the slot; anda length of a bend line formed extending in the axial direction on the insulating sheet member from a reference position in a central section of the insulating sheet member in the axial direction to a tip in the axial direction is configured shorter than a length from the reference position to an end in the axial direction of the sheet member.2. The rotating electrical machine according to claim 1 , wherein claim 1 ,the length of the bend lines in the axial direction is the same as a length of the stator core in the axial ...

MOTOR AND WASHING MACHINE HAVING THE SAME

A washing machine with a motor having a structure with improved performance. The washing machine includes a body, a tub disposed in the body, a drum rotatably disposed in the tub, and a motor including a stator coupled to a rear surface of the tub and a rotor rotatably disposed inside the stator. The stator includes a stator core including a core body and a plurality of core teeth extending inward from an inner circumferential surface of the core body in a radial direction of the core body, a first insulator and a second insulator covering both ends of the core body and the core teeth, a coil wound around the core teeth, and a plurality of insulation films disposed between the first insulator and the second insulator to electrically insulate the stator core and the coil. 1. A washing machine comprising:a body;a tub disposed in the body;a drum rotatably disposed in the tub; anda motor including a stator coupled to a rear surface of the tub and a rotor rotatably disposed inside the stator, a stator core including a core body and a plurality of core teeth extending inward from an inner circumferential surface of the core body in a radial direction of the core body;', 'a first insulator and a second insulator covering both ends of the core body and the core teeth;', 'a coil wound around the core teeth; and', 'a plurality of insulation films disposed between the first insulator and the second insulator to electrically insulate the stator core and the coil., 'wherein the stator comprises'}2. The washing machine according to claim 1 , wherein the first insulator comprises a first insulator body covering one end of the core body claim 1 , and a plurality of first insulator teeth covering one end of each of the core teeth claim 1 ,wherein each of the insulation films is inserted between neighboring ones of the first insulator teeth.3. The washing machine according to claim 2 , wherein the first insulator comprises a first seating rib protruding outward from an outer surface ...

ARMATURE AND MOTOR

In an armature, a plurality of teeth extending from an annular core back each include a projection portion arranged to extend in a circumferential direction from a circumferential side surface of the tooth. Insulators, each of which is attached to the stator core and is arranged to cover at least a portion of a separate one of the teeth, include an insulator contact surface arranged to be in contact with the projection portion. A portion of the projection portion and the insulator contact surface are arranged to be in contact with each other. 1. (canceled)2. An armature comprising: an annular core back; and', 'a plurality of teeth arranged to extend radially inward or radially outward from the annular core back;, 'a stator core includinginsulators, each of which is attached to the stator core and is arranged to cover at least a separate one of the teeth; andcoils, each of which is defined by a conducting wire wound around a separate one of the insulators; wherein each insulator includes a first resin member and a second resin member arranged in an axial direction or a circumferential direction;each tooth includes a projection portion arranged to extend in the circumferential direction from a circumferential side surface of the tooth;the projection portion includes a projection portion contact surface arranged to face the core back;each insulator includes an insulator contact surface arranged to face a tip of a corresponding one of the teeth; andthe insulator contact surface is arranged to be at least partly in contact with the projection portion contact surface of the projection portion of the corresponding tooth.3. The armature according to claim 2 , wherein the projection portion is arranged at a tip portion of the tooth.4. The armature according to claim 3 , whereinthe stator core is defined by steel sheets placed one upon another in the axial direction; andthe projection portion has a thickness and a width which are both greater than a thickness of each steel ...

STATOR AND METHOD FOR PRODUCING A STATOR OF AN ELECTRIC MACHINE

A method for producing a stator () of an electric machine is provided. The method includes providing a stator () with at least one stator slot () that is bounded by two stator teeth. The method proceeds by introducing electrical conductors () into the at least one stator slot (). At least one conductor () has an expandable coating () applied partially to its surface. The method continues by activating the expandable coating () to bring about an expansion of the coating (), as a result of which the conductors () are fixed within the stator slot (). 1. A method for producing a stator of an electric machine , comprising:providing the stator with at least one stator slot that is bounded by two stator teeth;introducing electrical conductors into the at least one stator slot, with at least one of the conductors having an expandable coating applied partially to its surface;activating the expandable coating to bring about an expansion of the coating and thereby fixing the conductors within the stator slot.2. The method of claim 1 ,wherein the step of activating the expandable coating is carried out by supplying heat.3. The method of claim 1 ,wherein the step of activating the coating forms at least one continuous fluid connection running through the stator slot, said fluid connection being formed by regions of the surface of the at least one conductor that are not covered with the coating.4. The method of claim 1 , further comprising:providing the conductors; andapplying the expandable coating partially to at least one of the conductors.5. The method of claim 1 , further comprising:providing the conductors;applying the expandable coating entirely to the surface of the conductor; andremoving the expandable coating from selected regions of the conductor.6. The method of claim 1 ,wherein the expandable coating applied partially to the surface of at least one conductor is structured in such a way that, between regions of the conductor that protrude from the stator after the ...

Rotary Electric Machine

A rotational electric machine achieving both of productivity and insulation property is provided. A rotational electric machine includes an iron core having a plurality of slots, and a plurality of segment conductive bodies arranged in the slots, wherein the iron core includes a coil guide arranged at, at least, one of opening portions of the slots, and the coil guide includes a slot insertion portion located between the slot and the segment conductive body and at least one separation portion located between the segment conductive bodies, and the slot insertion portion and the separation portion are arranged in the slot together with the segment conductive body. 1. A rotational electric machine comprising:an iron core having a plurality of slots; anda plurality of segment conductive bodies arranged in the slots,wherein the iron core includes a coil guide arranged at, at least, one of opening portions of the slots, and the coil guide includes a slot insertion portion located between the slot and the segment conductive body and at least one separation portion located between the segment conductive bodies, andthe slot insertion portion and the separation portion are arranged in the slot together with the segment conductive body.2. The rotational electric machine according to claim 1 , wherein an insulation material filling material is filled between the segment conductive body and the slot.3. The rotational electric machine according to claim 2 , wherein two coil guides arranged at both ends of the slots form a space for accumulating the insulation material filling material between the end portions facing each other in the slot.4. The rotational electric machine according to claim 1 , wherein at an axial direction end portion of an opening portion of the coil guide claim 1 , a coil clearance having an R surface or an inclined surface is provided in a circumferential direction.5. The rotational electric machine according to claim 4 , wherein the coil clearances are ...

Insulator and Motor Having the Same

Disclosed is an insulator of a motor, including a first side wall portion and a second side wall portion in which a coil is wound on outsides thereof, and which are disposed to face each other, to form an accommodation space at insides thereof, and also to form an entrance portion through which a stator is inserted; a connecting portion integrally formed with the first side wall portion and the second side wall portion; and a clip portion formed to protrude from at least one of an end of the first side wall portion and an end of the second side wall portion, and disposed at the entrance portion. Therefore, assemblability of the insulator with the stator can be ensured, and a manufacturing cost and a manufacturing time can be reduced.

Method for manufacturing stator of rotary electric machine

A method for manufacturing a stator of a rotary electric machine includes: assembling an insulator and a stator coil to a tooth; and after assembling, pouring a liquid adhesive into an opening of the insulator from an outer side of the stator coil so as to fix the stator coil to a stator core.

Wound Stator for Alternating-Current Generator

The present invention relates to a wound stator. The wound stator comprises: a stator and a plurality of wires. The stator comprises: an annular body and a plurality of radial grooves defined therein. The annular body has a plurality of separating posts protruding inwardly and radially from an inner circumference of the annular body. An end of each of the separating posts extends from its two sides to form a plurality of magnetic shoes. The plurality of radial grooves is defined between the separating posts. Each of the grooves has an opening defined between adjacent two of the plurality of magnetic shoes. The plurality of wires comprises: a first end, a second end, and a plurality of wave-shaped coils located between the first end and second end. Each wave-shaped coil is formed of straight portions and curved portions that alternate with each other. 1. A stator for an alternating-current generator , said stator comprising:an annular body having a plurality of separating posts protruding inwardly and radially from an inner circumference of the annular body, an end of each of the separating posts extending from its two sides to form a plurality of magnetic shoes; anda plurality of radial grooves defined between the separating posts, each of the grooves having an opening defined between adjacent two of the plurality of magnetic shoes;wherein the width of each of the plurality of grooves is only sufficient for receiving one wire and the width of the openings of the plurality of grooves is slightly larger than a wire diameter of the straight portions of the wire, so that the straight portions of the wires can be directly embedded into the grooves from the openings.2. The stator according to claim 1 , wherein an electrical insulating material is laid on all surfaces of the grooves.3. The stator according to claim 1 , wherein the electrical insulating material comprises a material selected from a group consisting of a pressed paper board claim 1 , a plastic film claim 1 , ...

Wound Stator and Wires for the Same

The present invention relates to a wound stator and wires for the same. The wound stator for an alternating-current generator comprises: a stator, having a plurality of radial grooves arranged at an inner circumference of the stator; and a plurality of wires for the stator. Each wire comprises: a first end, a second end, and a plurality of wave-shaped coils located between the first end and second end. Each wave-shaped coil is formed of straight portions and curved portions that alternate with each other. The straight portions of each wire are sequentially embedded in corresponding grooves of the stator so that each of the grooves is embedded with the wires. 1. A wire for a stator of an alternating-current generator , comprising:a first end;a second end; anda plurality of wave-shaped coils located between the first end and second end, each wave-shaped coil being formed of straight portions and curved portions that alternate with each other.2. The wire for a stator according to claim 1 , wherein the plurality of the wave-shaped coils of the wire has 6 to 8 curved portions in a same curving direction.3. The wire for a stator according to claim 1 , wherein the plurality of the wave-shaped coils of the wire has 12 to 16 curved portions in a same curving direction.4. The wire for a stator according to claim 1 , wherein cross sections of the straight portions of the wire have a square shape claim 1 , a rectangular shape or an elliptic shape.5. The wire for a stator according to claim 1 , wherein both the cross sections of the straight portions and the curved portions of the wire have a square shape claim 1 , a rectangular shape or an elliptic shape.6. A wound stator for an alternating-current generator comprising:a stator, having a plurality of radial grooves arranged at an inner circumference of the stator; anda plurality of wires for the stator, each wire comprising:a first end;a second end; anda plurality of wave-shaped coils located between the first end and second ...

ARMATURE AND ROTATING ELECTRIC MACHINE

Provided are: a back yoke portion formed in an annular shape; a plurality of tooth portions arranged annularly on an inner periphery of the back yoke portion and forming a plurality of slots that are spaced apart in a circumferential direction and open on an outer peripheral side, the plurality of tooth portions being fitted to an inner peripheral surface of the back yoke portion; a coil housed in the plurality of slots; and a wedge disposed between the coil and the back yoke portion, at an opening of each of the plurality of slots. 1. An armature comprising:a back yoke portion formed in an annular shape;a plurality of tooth portions arranged annularly on an inner periphery of the back yoke portion and forming a plurality of slots that are spaced apart in a circumferential direction and open on an outer peripheral side, the plurality of tooth portions being fitted to an inner peripheral surface of the back yoke portion;a coil housed in the plurality of slots; anda wedge disposed between the coil and the back yoke portion, on an opening side of each of the plurality of slots.2. The armature according to claim 1 , whereinan insulating sheet is formed between the coil and each tooth portion, anda thickness of the wedge is set to be greater than a thickness of the insulating sheet.3. The armature according to claim 2 , wherein the insulating sheet is formed between the coil and the wedge.4. The armature according to claim 1 , wherein each of the back yoke portion and the tooth portions is formed by stacking a plurality of steel plates.5. The armature according to claim 1 , wherein a length of the wedge in an axial direction is set to be greater than a length of each tooth portion in the axial direction.6. The armature according to claim 1 , whereina protrusion protruding in the circumferential direction is formed on one end of the wedge in an axial direction, andthe protrusion abuts one end of each tooth portion in the axial direction.7. The armature according to claim ...

STATOR AND ROTATING ELECTRIC MACHINE

A stator of the present invention includes a conductor wire. A portion of the conductor wire disposed adjacent to a coil winding center is connected to a power supply. A portion of the conductor wire disposed outwardly away from the coil winding center is connected to a neutral point. 1. A stator comprising:a stator core; anda coil disposed on the stator core, the coil being formed by winding a conductor wire, whereina portion of the conductor wire disposed adjacent to a winding center of the coil is connected to a power supply, and a portion of the conductor wire disposed outwardly away from the winding center of the coil is connected to a neutral point.2. The stator according to claim 1 , whereinthe coil includes a double-layer lap-wound coil that includes a pair of slot-held portions held in a slot of the stator core, one of the slot-held portions being located on a first circumferential side and disposed in a radially outward portion of the slot, the other slot-held portion being located on a second circumferential side and disposed in a radially inward portion of the slot.3. The stator according to claim 2 , whereinthe coil further includes a coil end portion protruded from an end face of the stator core facing in a rotation axis direction, andthe stator further comprises an annular insulating member disposed such that the insulating member extends outward from the center of the coil and covers the slot-held portions and the coil end portion of the coil in a substantially U-shaped manner.4. The stator according to claim 3 , whereinthe annular insulating member has a sheet shape and is bent in a substantially U-shaped manner, anda portion of the coil corresponding to a portion of the conductor wire adjacent to the winding center of the coil and connected to the power supply is disposed inside an inner portion of the insulating member bent in a substantially U-shaped manner, and a portion of the coil corresponding to a portion of the conductor wire outwardly away ...

MOTOR AND METHOD OF MANUFACTURING MOTOR

A stationary portion of a motor includes resin bodies including an inner and outer resin portion arranged between a tooth and a coil and between the tooth and an insulator. The outer resin portion covers circumferentially outer sides and axially outer sides of the coil. The inner and outer resin portions are continuous with each other through a connecting resin portion. The insulator includes an opening portion arranged to extend along circumferential side surfaces of the tooth. The inner resin portion is arranged to contact the circumferential side surfaces of the tooth and a conducting wire in the opening portion. Heat generated in the coil is transferred to the tooth through the resin body such that a large area of a path along which the heat is transferred from the coil to the tooth is secured. 121-. (canceled)22. A motor comprising a stationary portion and a rotating portion; wherein a plurality of teeth each having a shape of a column extending in a radial direction with respect to a central axis extending in a vertical direction, each tooth including a pair of circumferential side surfaces extending in an axial direction;', 'insulators each arranged to cover portions of a surface of a separate one of the teeth; and', 'coils each defined by a conducting wire wound around a separate one of the insulators;, 'the stationary portion includesthe rotating portion is arranged radially inward of the teeth, the insulators, and the coils, and is supported to be rotatable about the central axis with respect to the stationary portion; an upper frame portion arranged to cover a pair of upper corner portions of a corresponding one of the teeth, each upper corner portion extending in the radial direction;', 'a lower frame portion arranged to cover a pair of lower corner portions of the corresponding tooth, each lower corner portion extending in the radial direction; and', 'an opening portion arranged to extend along the circumferential side surfaces of the corresponding ...

MOTOR

A motor includes a shaft, a rotor magnet, an armature, an upper bracket, a lower bracket, and a fixing member. An insulator includes magnetic pole tooth insulating portions, each of which covers a separate one of magnetic pole teeth, and a core back insulating portion configured to cover at least portions of upper and lower end surfaces of a core back. A stator core includes a fixing member arranging portion. The core back insulating portion includes a core back insulating projecting portion configured to project in an axial direction away from a surface covering the core back, and including a radially inner surface located radially inward of a radially inner end of the fixing member arranging portion. The core back insulating projecting portion includes a cut portion at a position radially opposed to the fixing member. 1. A motor comprising:a bearing portion including an upper bearing and a lower bearing;a shaft, including a central axis extending in a vertical direction as a center thereof, rotatably supported by the bearing portion;a rotor magnet configured to rotate together with the shaft;an armature arranged radially outside the rotor magnet;an upper bracket arranged axially above the armature, and configured to hold the upper bearing at a radial center thereof, the upper bearing being configured to rotatably support the shaft;a lower bracket arranged axially below the armature, and configured to hold the lower bearing at a radial center thereof, the lower bearing being configured to rotatably support the shaft; anda fixing member configured to extend in the vertical direction, and configured to fix the armature to each of the upper and lower brackets; wherein a stator core including an annular core back and a plurality of magnetic pole teeth configured to project radially inward from the core back;', 'an insulator configured to cover at least an upper surface and a lower surface of each of the plurality of magnetic pole teeth of the stator core; and', 'coils ...

ELECTRIC MACHINE AND MOTOR VEHICLE

An electric machine comprising a rotor having a rotor body. The rotor body has multiple poles each carrying at least one rotor winding formed from multiple conductor loops. The poles extend in a radial direction of the rotor and the conductor loops pass through slots each formed between two adjacent poles. A support element extending in the radial direction is arranged in each of the slots between the rotor windings of the adjacent poles. The support element applies pressure to the conductor loops when the rotor rotates and/or heats up. A pressure distribution element extending at least in portions in the radial direction along the support element and the adjacent rotor winding is arranged between the support element and the rotor windings, which pressure distribution element distributes the pressure applied by the support element onto the adjacent rotor winding. 1. An electric machine comprising a rotor comprising: a rotor body , wherein the rotor body has multiple poles each carrying at least one rotor winding formed from multiple conductor loops , wherein the poles extend in a radial direction of the rotor and the conductor loops pass through slots formed between two adjacent poles , wherein a support element extending in the radial direction is arranged in each of the slots between the rotor windings of the adjacent poles , wherein the support element applies pressure to the conductor loops when the rotor rotates and/or heats up , wherein a pressure distribution element extending at least in portions in the radial direction along the support element and the adjacent rotor winding is arranged between the support element and the rotor windings , which pressure distribution element distributes the pressure applied by the support element onto the adjacent rotor winding.2. The electric machine according to claim 1 , wherein the pressure distribution element extends across the entire radial length of the rotor winding or the pressure distribution element extends over ...

SLOT INSULATION FOR ELECTRICAL MACHINES

An electrical machine includes a winding core with a plurality of end slots. A winding is seated in the end slots with end windings where the winding crosses from end slot to end slot. A slot insulator is seated in two of the end slots. The slot insulator includes a first slot liner seated in a first one of the two end slots with a winding slot defined therethrough in an axial direction. A second slot liner is seated in a second one of the two end slots with a winding slot defined therethrough in the axial direction, wherein the second slot liner is spaced apart in a lateral direction relative to the axial direction from the first slot liner by a gap. The slot insulator includes a span portion bridging across the gap to connect the first and second slot liners. 1. A slot insulator for an electrical machine comprising:a first slot liner with a winding slot defined therethrough in an axial direction;a second slot liner with a winding slot defined therethrough in the axial direction, wherein the second slot liner is spaced apart in a lateral direction relative to the axial direction from the first slot liner by a gap; anda span portion bridging across the gap to connect the first and second slot liners.2. A slot insulator as recited in claim 1 , wherein the span portion is contoured.3. A slot insulator as recited in claim 2 , wherein the span portion includes a curved surface that curves in a direction around an axis perpendicular to the axial direction and to the lateral direction.4. A slot insulator as recited in claim 1 , wherein each of the first and second slot liners defines a complete perimeter surrounding the respective winding slot.5. A slot insulator as recited in claim 1 , wherein the first and second slot liners and the span portion are a unitary structure including at least one of polyetherimide claim 1 , PEEK claim 1 , aluminum nitride based composite materials claim 1 , aluminum oxide based composite materials claim 1 , or boron nitride based composite ...

ROTOR OF ROTATING ELECTRICAL MACHINE

There is provided a rotor of a rotating electrical machine including a pair of field core bodies that are provided so as to enclose the field coil via the insulation bobbin around which the field coil is wound, in which a claw-shaped magnetic pole extending from an outer circumferential section of the field core body in an axial direction is provided on the field core body. The insulation bobbin has a plurality of flange sections extending from the base section of the claw-shaped magnetic pole along an inner surface of the claw-shaped magnetic pole of the field core body, and a plurality of thin portions are formed in the root section of the flange section at intervals in a circumferential direction. 1. A rotor of a rotating electrical machine comprising:a field coil;an insulation bobbin around which the field coil is wound; anda pair of field core bodies that are provided so as to enclose the field coil via the insulation bobbin, whereinthe field core body has a claw-shaped magnetic pole extending from an outer circumferential section of the field core body in an axial direction, andthe insulation bobbin has a plurality of flange sections extending from the base section of the claw-shaped magnetic pole along an inner surface of the claw-shaped magnetic pole, and a plurality of thin portions are formed in the root section of the flange section at intervals in a circumferential direction between each other.2. The rotor of a rotating electrical machine according to claim 1 , whereinspaces between the plurality of thin portions in the circumferential direction are configured to have the same thickness as a side wall section.3. The rotor of a rotating electrical machine according to claim 1 , whereinthe plurality of thin portions are formed by causing the outer side of a side wall section of the insulation bobbin to be recessed so as to be thin.4. The rotor of a rotating electrical machine according to claim 1 , whereinthe thin portions are arranged substantially in an ...

STATOR OF AN ELECTRIC MOTOR AND METHOD OF MAKING SAME

A stator of an electric motor having a stator core with a plurality of salient stator poles, an insulating cap, a stator winding consisting of a winding wire, and an interconnection unit with a plurality of winding-wire receptacles having an inside, wherein the winding wire is surrounded by a material constituting the winding-wire receptacle and connected and welded thereto on the inside. The stator is of an electric motor which is of a very high quality and precision so that high-current applications are possible. Without any major adjustments, the stator is combinable with different winding connections and is flexibly adaptable to the rest of the motor and possibly to the electronics design. The manufacturing method is capable of being flexibly adapted to different wire diameters. 1. A stator of an electric motor , the stator comprising:a stator core with a plurality of salient stator poles;an insulating cap; anda stator winding consisting of a winding wire and an interconnection unit having a plurality of winding-wire receptacles having an inside, wherein the winding wire is surrounded by a material constituting the winding-wire receptacle and connected and welded thereto on the inside.2. The stator according to claim 1 , wherein the interconnection unit comprises a planar contact plate.3. The stator according to claim 2 , wherein the winding wire is completely surrounded by and welded with the material of the winding-wire receptacle in the plane of the plate claim 2 , the winding wire penetrating the plane of the plate over the full thickness of the plate.4. The stator according to claim 1 , wherein the stator is of polyphase design with an interconnection unit being provided for each phase claim 1 , the interconnection units provided for each phase being electrically insulated from each other.5. The stator according to claim 4 , wherein each interconnection unit is electrically and mechanically connected to a terminal.6. The stator according to claim 4 , ...

Rotor and motor comprising same

A rotor comprises: a first motor which comprises a first rotor body and a plurality of first teeth formed on an outer circumferential surface of the first rotor body; a second rotor which comprises a second rotor body stacked on and coupled to the first rotor body and a plurality of second teeth formed on an outer circumferential surface of the second rotor body; a first coil which is wound around the first teeth; a second coil which is wound around the second teeth; a first insulator which is disposed between the first teeth and the first coil; and a second insulator which is disposed between the second teeth and the second coil.

A ROTOR AND PRODUCTION OF A ROTOR OF A ROTATING ELECTRICAL MACHINE

The invention relates to a method for producing a rotor () for a rotating electrical machine () in which at least one rotor winding () is introduced into a rotor laminated core () of the rotor () in an electrically insulated manner, wherein the rotor winding () is designed as an electrically insulated cage and/or as a damper loop at least partially by means of an additive production method in the rotor laminated core (), wherein an electrical insulation layer () is formed at the same time as the rotor winding () is formed between an electrical conductor () of the rotor winding () and the rotor laminated core () and/or between adjacent conductors () of the rotor winding (). 118.-. (canceled)19. A method for producing a rotor for a rotating electrical machine , said method comprising;forming a rotor winding embodied as an electrically insulated cage and/or as a damper loop in a rotor laminated core through an additive production process; andforming a layer of electrical insulation between an electrical conductor of the rotor winding and the rotor laminated core and/or between adjacent conductors of the rotor winding, while the rotor winding is formed.20. The method of claim 19 , wherein the rotor winding is embodied as at least two cages electrically insulated from one another.21. The method of claim 19 , wherein the layer of electrical insulation is formed by deposition of an electrically insulating ceramic material.22. The method of claim 19 , wherein the layer of electrical insulation is formed at least in part by a chemical reaction of a surface of the electrical conductor of the rotor winding with a further substance.23. The method of claim 19 , wherein the rotor laminated core is formed together with the rotor winding.24. The method of claim 19 , wherein the layer of electrical insulation is formed at least partly by deposition of a plastic.25. The method of claim 19 , further comprising:forming a short circuit ring at an axial end of the rotor laminated core; ...

Electric motor, pump device using electric motor, and stator

An electric motor, and the electric motor includes a stator core provided on a stator, a plurality of teeth provided on the stator core, a coil wound body attached to the tooth, an inner flange portion provided at an inner diameter side of a bobbin, a first engagement portion provided at one end side in a width direction of the inner flange portion, and a second engagement portion provided at the other end side in the width direction of the inner flange portion, the first engagement portion being provided to be located at an outer side in a diameter direction than the second engagement portion of the adjacent coil wound body in a moving direction, the second engagement portion being provided to be located at an outer side in a diameter direction than the first engagement portion of the adjacent coil wound body in a moving direction.

Device for driving a compressor and method for assembling the device

The invention relates to a device for driving a compressor of a vaporous fluid, particularly an electric motor. The device has a rotor and a stator, which are extended along a common longitudinal axis, as well as an insulation element. The insulation element is designed as a single part and connected with a stator core of the stator in a form-fitting manner such that the stator core and the insulation element form an integral and single-part component of the stator. The invention further relates to a method for producing a stator of the device, particularly the stator core with the insulation element.

MOTOR

A motor includes a bearing portion including upper and lower bearings, a shaft rotatably supported by the bearing portion, a rotor magnet that rotates together with the shaft, an armature radially outside the rotor magnet, a casing that fixes the armature and holds the upper and lower bearings at a radial center thereof, and a cover. The armature includes a stator core including magnetic pole teeth, an insulator that covers at least upper and lower surface of each of the magnetic pole teeth, and coils. The casing includes a hole passing through an axial end surface of the casing in the axial direction, and the cover is opposite the hole between the casing and the armature. 1. A motor comprising:a bearing portion including an upper bearing and a lower bearing;a shaft including a central axis extending in a vertical direction as a center thereof, and rotatably supported by the bearing portion;a rotor magnet that rotates together with the shaft;an armature located radially outside the rotor magnet;a casing that fixes the armature and holds the upper and lower bearings at a radial center thereof, the upper and lower bearings rotatably supporting the shaft; anda cover; wherein a stator core including an annular core back and a plurality of magnetic pole teeth that project radially inward from the core back;', 'an insulator that covers at least an upper surface and a lower surface of each of the plurality of magnetic pole teeth of the stator core; and', 'coils each defined by a conducting wire wound around a separate one of the plurality of magnetic pole teeth with the insulator intervening therebetween; wherein, 'the armature includesthe casing includes a through hole passing through an axial end surface of the casing in an axial direction; andthe cover is opposite to the through hole between the casing and the armature.2. The motor according to claim 1 , whereinan upper surface of the cover is in contact with the coils; andthe cover is made of an elastic material.3. The ...

STATOR OR ROTOR OF AN ELECTRICAL MACHINE

The present technology contemplates a stator or rotor of an electric machine comprising a main cylindrical body with a circular array of slots; at least one bar winding comprising a first and second plurality of basic conductors and a second plurality of special conductors. The first and second circular array comprise a first and second arc of legs of the first and second set of said conductors which are inserted as well as legs of the conductors. The present technology also contemplates electric machines and electric or hybrid drive vehicles comprising such stators of rotors. 1. Stator or rotor of an electric machine , comprising:a stator or rotor core comprising a main cylindrical body in which a circular array of slots are defined, each slot comprising at least a first and at least a second insertion position, radially aligned with respect to each other;at least one bar winding comprising a first plurality of basic conductors having two legs and a connection portion between said legs, said first plurality of basic conductors comprising at least a first set of conductors having legs offset from each other by a first pitch and a second set of conductors having legs offset from each other by a second pitch different from the first pitch, the bar winding also comprising a second plurality of special bar conductors for the completion of the winding having one or more legs, the legs of the conductors of the first and second plurality belonging to a first or a second circular array of legs based on the occupied insertion position; characterized in that the first and the second circular array comprise:a first arc of legs of the first set of conductors delimited by a respective initial and final leg of said conductors;a second arc complementary to said first arc in which legs of the second set of conductors are inserted as well as legs of the special bar conductors.2. Stator or rotor according to claim 1 , wherein one or more of said conductors are covered on their ...

ROTATING ELECTRICAL MACHINE ARMATURE

Provided are an armature for rotary electric machine, an insulator therefor, and a coil winding device for winding a conductive wire on a tooth to which the insulator has been attached, wherein in each of all forward-wound coils and reversely-wound coils, a part wound on a first side surface of two side surfaces of each tooth that are opposed to the respective adjacent teeth forms a straight portion in which conductive wires in respective layers of the coil are parallel, a part wound on a second side surface forms a cross portion in which the conductive wire in an upper layer is wound in a crossed manner on the conductive wire in an adjacent lower layer, and an insulator has a guide for guiding the conductive wire along a base of an inner flange of the insulator at a first turn of each coil. 1. An armature for rotary electric machine , having an even number of teeth provided with insulators for electric insulation , which are arranged in a ring shape , and having a coil obtained by winding a conductive wire forward in a concentrated manner and a coil obtained by winding a conductive wire reversely in a concentrated manner on each tooth , whereinin each of all the forward-wound coils and the reversely-wound coils, a part wound on a first side surface of two side surfaces of each tooth that are opposed to the respective adjacent teeth forms a straight portion in which the conductive wires in respective layers of the coil are parallel, and a part wound on a second side surface forms a cross portion in which the conductive wire in an upper layer is wound in a crossed manner on the conductive wire in an adjacent lower layer, anda guide is provided for guiding the conductive wire along a base of a flange of each insulator at a first turn of each coil, wherein the coil obtained by winding the conductive wire forward in a concentrated manner and the coil obtained by winding the conductive wire reversely in a concentrated manner on the teeth are alternately arranged such ...

Stator for rotating electric machine and method of manufacturing the stator

A stator includes an annular stator core having slots formed therein, a stator coil received in the slots, and insulating sheets each being interposed, in a corresponding one of the slots, between the stator coil and an interior wall surface of the stator core defining the corresponding slot. Each of the insulating sheets includes a sheet-like substrate and a resin layer provided on an outer surface of the substrate. The resin layer is formed of a curable and foamable resin that is foamed and cured by external stimulation. Each of the insulating sheets has an extension portion located outside the corresponding slot and extending nonparallel to an axial direction of the stator core so as to face an axial end face of the stator core. In each of the insulating sheets, the resin layer is provided, on the outer surface of the substrate, in a region including the extension portion.

Stator for Rotating Electrical Machine, Rotating Electrical Machine, and Method of Producing Stator for Rotating Electrical Machine

A stator for a rotating electrical machine includes a stator coil, a stator iron core having slots into which the stator coil is mounted, and insulating slot liners inserted into the slots, wherein conductive wire materials constituting the stator coil are inserted into the slot liners, and sections of the slot liners protruding from the slots are each provided with a bellows portion.

Electric machine with slot closers

An electric machine includes a stator having teeth that define open slots and slot closers disposed in the slots. Each slot closers includes a flux bridge surrounded by a nonmagnetic case. The slot closer is disposed between adjacent ones of the teeth with the case engaging and spanning the adjacent teeth. The case forms nonmagnetic gaps between the flux bridge and the adjacent teeth, respectively, to reduce potential for torque ripple.

ROTOR AND MOTOR HAVING THE SAME

A rotor that may include a first rotor core, a second rotor core disposed below the first rotor core, a first insulator coupled to the first rotor core, and a second insulator coupled to the second rotor core. The first rotor core may include first teeth protruding from a first outer circumferential surface thereof, and the second rotor core may include second teeth protruding from a second outer circumferential surface thereof. The first insulator may include a body configured to surround the first teeth. A first outer guide may be formed at an outside of the body with respect to a radial direction of the first rotor core, and the second insulator may include a body configured to surround the second teeth. A second outer guide may be formed at an outside of the body with respect to a radial direction of the second rotor core. The first teeth and the second teeth may be disposed at different positions with respect to a circumferential direction. The first outer guide and the second outer guide may be configured to abut each other such that a separate member for filling a space into which a nozzle is inserted is omitted. A manufacturing time and a manufacturing process can be reduced based on such disclosure. 1. A rotor comprising:a first rotor core;a second rotor core provided below the first rotor core;a first insulator coupled to the first rotor core; and the first rotor core includes a first outer circumferential surface and first teeth protruding from the first outer circumferential surface,', 'the second rotor core includes a second outer circumferential surface and second teeth protruding from the outer circumferential surface,', 'the first insulator includes a body configured to surround the first teeth and a first outer guide formed at an outside of the body with respect to a radial direction of the first rotor core,', 'the second insulator includes a body configured to surround the second teeth and a second outer guide formed at an outside of the body with ...

ROTARY ELECTRIC MACHINE

A rotary electric machine includes a stator in which a plurality of armatures each have a coil formed by a winding wire wound in plural layers around bobbins mounted to a magnetic pole tooth, which are disposed annularly on an inner circumference of a cylindrical frame. The coil is formed by the winding wire being wound with a constant feed pitch in parallel with slots of the bobbins in plural layers. The winding wire forming a first layer of the coil is shifted by half the feed pitch between a left side and a right side of a center axis of the coil as viewed from a plane perpendicular to a stacking direction of a stacked iron core. 1. A rotary electric machine including a stator in which a plurality of armatures each have a stacked iron core which includes a magnetic pole tooth formed so as to project from a yoke portion and having a rectangular longitudinal cross-section , in which the plurality of armatures each have a coil formed by a winding wire being wound around a bobbin mounted to the magnetic pole tooth , and in which the plurality of armatures are disposed annularly on an inner circumference of a cylindrical frame , whereinthe coil is formed by the winding wire being wound with a constant feed pitch P in parallel with a slot of the bobbin in plural layers, andthe winding wire forming a first layer of the coil is shifted, by P/2 which is half the feed pitch P, between a left side of and a right side of a center axis of the coil as viewed from a plane perpendicular to a stacking direction of the stacked iron core.2. The rotary electric machine according to claim 1 , wherein the bobbin is mounted to each of both ends claim 1 , in a longitudinal direction claim 1 , of the magnetic pole tooth claim 1 , and the bobbin has a projection having a size corresponding to about half the feed pitch P in one of portions claim 1 , to the left of and to the right of the center axis of the coil claim 1 , where a first turn of the coil is wound.3. The rotary electric ...

INSULATION COMPONENT FOR AN ELECTRIC MACHINE AND METHOD OF ASSEMBLY

An electric machine includes a core with a plurality of teeth that extends between end faces of the core. Slots are defined in the core between adjacent teeth of the plurality of teeth. The slots each have a radial opening formed between end portions of the adjacent teeth. An insulation sheet is positioned on the core to obstruct the radial openings to the slots. The insulation has at least two spaced circumferential members that respectively overlap the end faces of the core. The insulation sheet also has a plurality of spaced axial members connected to the circumferential members. The axial members are positioned within the slots to obstruct the radial openings to the slots. 1. An electric machine comprising:a core having a plurality of teeth that extend axially between end faces of the core, adjacent teeth of the plurality of teeth defining a slot with a radial opening formed between end portions of the adjacent teeth; andan insulation sheet including at least two spaced side portions and a connecting portion connected to the side portions, the side portions overlapping a portion of the core to position the connecting portion in the slot to obstruct the radial opening.2. The electric machine of wherein the insulation sheet includes a plurality of spaced connecting portions connected to the side portions claim 1 , each of the connecting portions positioned to obstruct respective radial openings formed between end portions of adjacent teeth.3. The electric machine of wherein each of the adjacent teeth has a radial face extending axially along a portion of the end portions of the adjacent teeth claim 1 , the connection portion of the insulation sheet being offset from the radial faces of the adjacent teeth when the connecting portion is positioned to obstruct the radial opening.4. The electric machine of wherein:the radial opening has a first width measured in a circumferential direction between the end portions of the adjacent teeth,the slot at a position offset ...

Rotating electrical machine

A rotating electrical machine includes a rotor and a magnet unit. The rotating electrical machine also includes a cylindrical stator and a housing. The stator is equipped with a stator winding made up of a plurality of phase windings. The stator is arranged coaxially with the rotor and faces the rotor. The housing has the rotor and the stator disposed therein. The rotor includes a cylindrical magnet retainer to which the magnet unit is secured and an intermediate portion which connects between a rotating shaft of the rotor and the magnet retainer and extends in a radial direction of the rotating shaft. A first region located radially inside an inner peripheral surface of a magnetic circuit component made up of the stator and the rotor is greater in volume than a second region between the inner peripheral surface of the magnetic circuit component and the housing in the radial direction.

STATOR AND ROTARY ELECTRIC MACHINE

A stator includes: a stator core that includes a plurality of slots; a stator coil that is formed by connecting a plurality of segment conductors to each other; and an insulating member that has insulating properties, in which the segment conductor includes a slot portion and an inclined portion, the slot portion is disposed inside the slot, the inclined portion is disposed outside the slot to be inclined from the slot portion, the insulating member is mounted on the stator core and includes a first insulating portion and a plurality of second insulating portions, the first insulating portion is disposed next to the slot portion, the second insulating portions extend from the first insulating portion in an axial direction and are provided along a radial direction of the stator core, and the second insulating portions insulate adjacent segment conductors in an coil end from each other. 1. A stator comprising:a stator core that includes a plurality of slots;a stator coil that is formed by connecting a plurality of segment conductors to each other; andan insulating member that has insulating properties, whereinthe segment conductor includes a slot portion and an inclined portion,the slot portion is disposed inside the slot,the inclined portion is disposed outside the slot to be inclined from the slot portion,the insulating member is mounted on the stator core and includes a first insulating portion and a plurality of second insulating portions,the first insulating portion is disposed next to the slot portion,the plurality of second insulating portions extend from the first insulating portion in an axial direction and are provided along a radial direction of the stator core, andthe second insulating portions insulate adjacent segment conductors in a coil end from each other.2. The stator according to claim 1 , whereinthe second insulating portion is disposed between the inclined portion of one segment conductor and the inclined portion of another segment conductor ...

ISOLATION RING FOR ELECTRIC MOTOR END WINDINGS

An electric motor for a hybrid or electric vehicle drive unit includes a housing with a stator fixed within the housing and including a plurality of end windings. A rotor is disposed within the housing and connected to a drive shaft. An isolating ring is disposed within the housing between the end windings and the housing. 1. An electric motor for a vehicle drive unit , comprising:a housing;a stator fixed within the housing and including a plurality of end windings;a rotor disposed within the housing and connected to a drive shaft;an isolating ring disposed within the housing between the end windings and the housing.2. The electric motor according to claim 1 , wherein the isolation ring is an insert received in the housing.3. The electric motor according to claim 1 , wherein the isolation ring is sprayed on an interior surface of the housing.4. The electric motor according to claim 1 , wherein the isolation ring is made from a dielectric material.5. The electric motor according to claim 4 , wherein the isolation ring is made from one of PTFE claim 4 , PEEK and FEP.6. The electric motor according to claim 1 , wherein the isolation ring has a thickness of 1 mm or less. The present disclosure relates to electric motors and more particularly to an isolation ring for electric motor end windings.This section provides background information related to the present disclosure which is not necessarily prior art.Electric motors are becoming more commonly used in electric vehicle and hybrid vehicle drive units. The electric motors include a stator and a rotor connected to a drive shaft. Lengths of wire, called “conductors”, are wound around the stator structure. This winding process usually causes the windings and internal motor leads to be bent into relatively narrow radius curves defining end windings. The rotor and stator are disposed within a housing. Electric motor design requirements require a minimum spacing between the end windings and the housing without an insulation ...

BRUSHLESS MOTOR

A stator of a brushless motor may include a core; a bobbin including a pair of side surfaces, an inner wall, and an outer wall; a conductor wire wound by being overlapped in plural layers; and a resin layer covering the bobbin and the conductor wire. A profile of the conductor wire may become larger towards an outer circumferential side of the stator. Among portions of the conductor wire arranged along a rotary axis direction of a rotor on at least one side surface included in the pair of side surfaces and located on an innermost circumferential side of the stator in the respective plural layers, a portion of the conductor wire exposed to the resin layer and separated from the inner wall and the outer wall may be tilted from an inner circumferential side of the stator toward the outer circumferential side of the stator. 1. A brushless motor comprising:a rotor; anda stator arranged on an outer circumferential side of the rotor, a core circumscribing the rotor;', 'a bobbin covering the core and comprising a pair of side surfaces along a rotary axis of the rotor, an inner wall located on an inner circumferential side of the pair of side surfaces, and an outer wall located on an outer circumferential side of the pair of side surfaces;', 'a conductor wire wound on the bobbin by being overlapped in plural layers; and', 'a resin layer covering the bobbin and the conductor wire,, 'wherein the stator comprisesa profile of the conductor wire becomes larger towards an outer circumferential side of the stator, andamong portions of the conductor wire arranged along a rotary axis direction of the rotor on at least one side surface included in the pair of side surfaces and located on an innermost circumferential side of the stator in the respective plural layers, a portion of the conductor wire exposed to the resin layer and separated from the inner wall and the outer wall is tilted from an inner circumferential side of the stator toward the outer circumferential side of the ...

POLYMERIC MATERIALS

A submersible component can include a conductor; and a polymeric material disposed about at least a portion of the conductor where the polymeric material includes at least approximately 50 percent by weight polyether ether ketone (PEEK) and at least 5 percent by weight perfluoroalkoxy alkanes (PFA). A submersible electrical unit can include an electrically conductive winding; and a polymeric composite material disposed about at least a portion of the electrically conductive winding where the polymeric composite material includes polymeric material at at least approximately 40 percent by volume and one or more fillers at at least approximately 10 percent by volume. 1. A submersible electrical unit comprising:an electrically conductive winding; anda polymeric composite material disposed about at least a portion of the electrically conductive winding wherein the polymeric composite material comprises polymeric material at at least approximately 40 percent by volume and one or more fillers at at least approximately 10 percent by volume.2. The submersible electrical unit of wherein the one or more fillers comprise alumina.3. The submersible electrical unit of wherein the one or more fillers comprise boron nitride.4. The submersible electrical unit of wherein the one or more fillers comprise alumina and boron nitride.5. The submersible electrical unit of wherein the polymeric material comprises dicyclopentadiene.6. The submersible electrical unit of wherein the polymeric material comprises ethylidenenorbornene.7. The submersible electrical unit of wherein the polymeric material comprises norbornyl-functionalized linseed oil.8. The submersible electrical unit of wherein the polymeric material comprises dicyclopentadiene claim 1 , ethylidenenorbornene and norbornyl-functionalized linseed oil.9. The submersible electrical unit of comprising a submersible electric motor.10. The submersible electrical unit of wherein the polymeric composite material comprises an encapsulant.11 ...

Motor and air conditioning apparatus

A motor includes a rotor having a rotation shaft, a rotor core attached to the rotation shaft, and a rotor magnet embedded in the rotor core, a stator disposed on an outer side of the rotor in a radial direction about a central axis of the rotation shaft and surrounding the rotor, a board disposed on one side of the stator in a direction of the central axis, and a microcomputer mounted on the board. The microcomputer is disposed on an outer side of the rotor magnet in the radial direction.

MOTOR

Various embodiments relate to a stator having an improved structure of an insulator coupled to teeth and to a motor having the stator. The stator includes an insulator. The insulator includes: a coil-wound portion surrounding an outer circumferential face of a tooth; and both side walls respectively extending from both sides of the coil-wound portion, wherein the both side walls and the coil-wound portion defines a space receiving the coil, wherein one of the both side walls includes a coupling portion, wherein the insulator are divided into two parts and the two parts are coupled to each other via the coupling portion such that the tooth is inserted into and coupled to the insulator. 1. A stator for a motor , the stator comprising:a stator core;teeth coupled to the stator core;a rotor spaced apart from the stator core in a radial direction of the stator core; andinsulators, each of the insulators being coupled respectively to a tooth among the teeth and having a hollow shape configured to receive the tooth; a body that extends in the radial direction of the stator core, and', 'a pole shoe that extends from one end of the body, wherein an outer surface of the pole shoe is curved and defines a gap between the pole shoe and the rotor, wherein each of the insulators comprises:', 'a coil-wound portion that surrounds an outer circumferential surface of the tooth and that is configured to seat a coil; and', 'side walls that respectively extend from both sides of the coil-wound portion and that are spaced apart from each other in the radial direction, wherein the side walls and the coil-wound portion define a space configured to receive the coil,', 'wherein each of the insulators comprises a pair of parts coupled to each other, and one of the side walls comprises a coupling portion that couples the pair of parts to each other, and', 'wherein the pair of parts of each of the insulators are coupled to each other to thereby define the coil-wound portion, the side walls, and a ...

Rotating Machine and Insulator and Slot Liner for Rotating Machine

A rotating machine includes a stator including a stator core having a plurality of slots arrayed in the circumferential direction, a plurality of conductors for stator winding wire inserted respectively into the slots, and slot liners comprising a sheet-shaped insulator surrounding the conductors for stator winding wire; and a rotor rotatably arranged concentrically with the stator. In the rotating machine the slots of which are filled with an electrically insulative resin, concavo-convex is formed on both the top and bottom surfaces of the slot liners. 18.-. (canceled)9. A rotating machine comprising:a stator including a stator core having a plurality of slots arrayed in the circumferential direction, a plurality of rectangular magnet wires inserted respectively into the slots, and slot liners including a sheet-shaped insulator surrounding the rectangular magnet wires; anda rotor rotatably arranged concentrically with the stator, the slots being filled with an electrically insulative resin, 'wherein concave parts constituting the concavo-convex communicate from the ends to the other ends of the slots.', 'wherein concavo-convex is formed on both the top and bottom surfaces of the slot liners, and the slot liners are installed respectively from ends to the other ends of the slots extending from an end to the other end of the stator core in the axial direction, and'}10. The rotating machine according to claim 9 , wherein concave parts and convex parts constituting the concavo-convex extend respectively in the axial direction of the stator core.11. The rotating machine according to claim 9 , wherein concave parts and convex parts constituting the concavo-convex extend respectively in the manner of being skewed to the axial direction of the stator core.12. The rotating machine according to claim 10 , wherein the concavo-convex has a wavy concavo-convex shape or an embossed concavo-convex shape.13. The rotating machine according to claim 11 , wherein the concavo-convex ...

MOTOR AND METHOD FOR MANUFACTURING STATOR THEREFOR

A stator core is formed by deforming a core assembly having core pieces coupled in a strip form into an annular shape, and by joining both ends of the core assembly together to make a core-fastening portion. Individual phase windings are routed from one end of the core assembly toward another end. Lead portion () of phase winding () and lead portion () of phase winding () make up respective wire terminals. Lead portion () of another phase winding () is extended through a plural number of the core pieces in a direction of the lead portions (and ), and a wire terminal of the extended lead portion () and the wire terminals of the other lead portions (and ) are electrically connected to provide a neutral point of three-phase Y-connection circuit. 1. A motor comprising a rotor having a plurality of magnetic poles around a rotary shaft , and a stator having a winding wound on a stator core formed of serially coupled twelve core pieces , each of which includes a tooth , the motor for being driven by a three-phase alternating-current power supply ,wherein:the stator core is formed by deforming a core assembly having the core pieces coupled in a strip form into an annular shape, and by joining both ends of the core assembly together to make a core-fastening portion;the winding comprises a first phase winding, a second phase winding and a third phase winding corresponding to respective phases;each of the phase windings includes a winding portion wound on a designated number of the core pieces to form a plurality of coils, and a lead portion led out from the winding portion, and is routed from one end of the core assembly toward another end;the lead portions of the first phase winding and the second phase winding make up respective wire terminals; andthe lead portion of the third phase winding is extended through a plural number of the core pieces in a direction of the other two lead portions, and a wire terminal formed of the extended lead portion and the wire terminals of ...

SLOT LINER FOR AN ELECTRIC MACHINE

A slot liner is provided for a stator and/or a rotor of an electric machine and includes a body configured to be received within a stator slot of the stator and/or within a rotor slot of the rotor. The body extends a length from a first end to an opposite second end and a width from a first edge to an opposite second edge. The body includes an inner segment and first and second outer segments that extend along the length of the body. The first and second outer segments flank the inner segment such that the inner segment extends between the first and second outer segments along the length of the body. The inner segment includes at least one different material than the first and second outer segments such that a thermal conductivity of the inner segment is greater than a thermal conductivity of the first and second outer segments. 1. A slot liner for at least one of a stator or a rotor of an electric machine , the slot liner comprising: an inner segment extending along the length of the body; and', 'first and second outer segments extending along the length of the body, the first and second outer segments flanking the inner segment along the length of the body such that the inner segment extends between the first and second outer segments along the length of the body and such that the first outer segment includes the first edge of the body and the second outer segment includes the second edge of the body, wherein the inner segment includes at least one different material than the first and second outer segments such that a thermal conductivity of the inner segment is greater than a thermal conductivity of the first and second outer segments., 'a body configured to be received within at least one of a stator slot of the stator or a rotor slot of the rotor, the body extending a length from a first end to an opposite second end, the body extending a width from a first edge to an opposite second edge, the body comprising2. The slot liner of claim 1 , wherein the thermal ...

ELECTRIC MACHINE WITH A SLOT LINER

An electrical machine includes a rotor, a stator having a slot liner including an electrical insulator which extends beyond the stator ends, and a strengthening element provided at each of the slot liner ends, wherein the strengthening strip reduces the splitting of the corresponding slot liner end. 1. An electrical machine comprising:a rotor;a stator having a core with at least one winding slot having an open top and terminating in opposing open ends;a slot liner provided within the winding slot and having an electrical insulating element defining an open top and terminating in opposing ends, which extend beyond the slot open ends, and a strengthening strip provided at each of the slot liner ends and solely on an outer surface of the electrical insulating element; andwherein the strengthening strip reduces the splitting of the corresponding slot liner end during an automatic winding process.2. The electrical machine of wherein the strengthening strip is bonded to the outer surface of the electrical insulating element.3. The electrical machine of wherein the entirety of the strengthening strip lies beyond the corresponding slot end.4. The electrical machine of wherein the core comprises multiple winding slots claim 1 , with a slot liner provided in each of the multiple winding slots.5. The electrical machine of further comprising a least one winding comprising electrical wiring wound through at least two of the multiple slots.6. The electrical machine of wherein the electrically insulating element is less thermally conductive than the strengthening strip.7. An electrical machine comprising:a rotor;a stator having a core with at least one winding slot having an open top and terminating in opposing open ends;a slot liner provided within the winding slot and having an electrical insulating element defining an open top and terminating in opposing ends, which extend beyond the slot open ends, and a strengthening strip provided at each of the slot liner ends and wrapping ...

WINDING INSULATION STRUCTURE OF STATOR OF ELECTROMAGNETIC MOTOR

A winding insulation structure of a stator of an electromagnetic motor is provided, in which windings are wound inside slots of a stator iron core of the electromagnetic motor formed of a stator and a rotor with an insulation member therebetween, and in which an insulation sheet insertion portion for inserting an insulation sheet is formed between the stator iron core and the insulation member on a slot opening portion side of the stator iron core. 1. A winding insulation structure of a stator of an electromagnetic motor ,wherein windings are wound inside slots of a stator iron core of the electromagnetic motor formed of a stator and a rotor with an insulation member therebetween, andwherein an insulation sheet insertion portion for accommodating an insulation sheet is formed between the stator iron core and the insulation member on a slot opening portion side of the stator iron core.2. The winding insulation structure of a stator of an electromagnetic motor according to claim 1 ,wherein the insulation sheet insertion portion for accommodating the insulation sheet is formed in a gap between the stator iron core and the insulation member by providing a step portion in the stator iron core on the slot opening portion side of the stator iron core. 1. Technical FieldThe present invention relates to improvement of a winding insulation structure of a stator of an electromagnetic motor for securing an electrical insulation distance between a winding that is wound inside the slot of a stator and a stator iron core.2. Description of Related ArtAs an electromagnetic motor, for example, a brushless motor, a stepper motor, and the like are known.A winding is wound inside the slot of a stator iron core of an electromagnetic motor with an electrical insulation member (hereinafter, simply referred to as “insulation member”) therebetween. In order to comply with foreign safety standards (UL, TUV standards, and the like), it is necessary that the windings have an insulation ...

Curable Composition

A curable composition includes a curable resin and a magnetic body, wherein the magnetic body comprises magnetic particles and a surface treatment agent present on a surface of the magnetic particles. The curable composition has low viscosity, and fluidity, and capable of effectively cured without causing curing shrinkage or the like to form a cured product having desired physical properties.

STATOR

A stator that includes a stator core including a plurality of teeth with a slot in between; a plurality of coils each formed of a conductor, each of the coils including: an accommodated portion accommodated in the corresponding slot, a coil end disposed on an outer side of an end face of the stator core, and a lead wire protruding from the accommodated portion and extending radially outward of the stator core; and a connector connected to ends of the lead wires of the coils. 19-. (canceled)10. A stator comprising:a stator core including a plurality of teeth with a slot in between; an accommodated portion accommodated in the corresponding slot,', 'a coil end disposed on an outer side of an end face of the stator core, and', 'a lead wire protruding from the accommodated portion and extending radially outward of the stator core; and, 'a plurality of coils each formed of a conductor, each of the coils including the connector is disposed between the coil ends and an outer peripheral face of the stator core in a radial direction of the stator core and between an axial end face of the stator core and the ends of the lead wires in an axial direction of the stator core,', 'the connector is connected to at least three of the lead wires in a state in which the connector is adjacent to the ends of the lead wires in a circumferential direction of the stator core,', a first lead wire having an end disposed outward in the axial direction, and', 'a second lead wire having an end disposed inward in the axial direction with respect to the end of the first lead wire, and, 'the lead wires include, 'the connector is disposed between the end of the first lead wire and the end of the second lead wire in the axial direction of the stator core., 'a connector connected to ends of the lead wires of the coils, wherein11. The stator according to claim 10 , wherein a plurality of lead wire connectors joined to the ends of the lead wires in a state in which the lead wire connectors are adjacent ...

METHOD FOR WINDING A STATOR OF A ROTARY ELECTRICAL MACHINE, AND CORRESPONDING WOUND STATOR

The invention relates mainly to a method for winding a stator for a multiphase electric machine, the stator comprising notches and intended to receive conductors of a winding, the winding comprising, for each phase, a coil and forming two systems each comprising a respective group of coils, the method comprising steps of installing conductors in the repeated notches in such a way as to form a winding comprising a plurality of concentric turns, wherein one of the steps of installing the conductors in a series of notches is subdivided into a first step of installing the conductors of a first turn of the first system; followed by a second step of installing the conductors of the first turn of the second system while the first step of installing the conductors of the first system continues. 1101015131313131313131315. Method for winding a stator () for a multiphase electrical machine , said stator () comprising notches () which are designed to receive conductors (C-C , C′-C′) of a winding , said winding comprising a winding (PH-PH , PH′-PH′) for each phase , and forming two systems (A-B) each comprising a respective group of windings (PH-PH , PH′-PH′) , said method comprising steps of installation of the conductors (C-C , C′-C′) in said notches () , repeated such as to form a winding comprising a plurality of concentric turns (SD , SI , SP , SF) ,{'b': 1', '3', '1', '3', '15', '1', '3', '1', '3', '1', '3, 'wherein one of the steps of installation of the conductors (C-C, C′-C′) in a series of notches () is subdivided into a first step of installation of at least one of the conductors (C-C) of a first turn (SD) of the first system (A), followed by a second step of installation of at least one of the conductors (C′-C′) of the first turn (SD) of the second system (B), whereas the first step of installation of at least one of the conductors (C-C) of the first system (A) is continued.'}213131313. Winding method according to claim 1 , wherein claim 1 , during the step of ...

MOTOR

The present invention may provide a motor comprising: a housing; a stator disposed in the housing; a rotor disposed in the stator; and a shaft coupled to the rotor. The stator comprises: a stator core; an insulator disposed on the stator core; and a coil disposed at the insulator. The insulator comprises: a body at which the coil is disposed; a first guide which is extended from one side of the body; and a first protrusion and a second protrusion which protrude from the upper surface of the first guide. The first protrusion and the second protrusion are disposed to be spaced apart from each other so as to form a space in the circumferential direction with reference to the center of the stator. 1. A motor comprising:a housing;a stator disposed in the housing;a rotor disposed in the stator; anda shaft coupled to the rotor,wherein the stator comprises a stator core, an insulator disposed on the stator core, and a coil disposed on the insulator,wherein the insulator comprises a body on which the coil is disposed, a first guide extending from one side of the body, and a first protrusion and a second protrusion which protrude from a top surface of the first guide, andwherein the first protrusion and the second protrusion are disposed to be spaced apart from each other to form a space in a circumferential direction on the basis of a center of the stator,wherein the body comprises a first body and a second body disposed inside the first body, andwherein the insulator comprises a second guide protruding upward from the body between the first body and the second body,wherein the first protrusion and the second protrusion comprise areas protruding further than the second wide in a lateral direction of the insulator.2. The motor of claim 1 , wherein the first guide comprises a first inner surface and a first outer surface claim 1 , andwherein the first protrusion and the second protrusion are disposed between the first inner surface and the first outer surface on the basis of a ...

MOTOR, ACTUATOR, AND MEDICAL SUPPORT ARM APPARATUS

In order to realize a movable mechanism capable of being configured more compactly and also capable of ensuring higher safety. A motor is provided. Also, an electrically active part is provided with an insulating structure so that insulating properties between the electrically active part and one or more conductors near the electrically active part satisfy a certain safety standard regarding medical electrical equipment. 1. (canceled)2. A medical support arm apparatus , comprising:a multi joint arm that comprises a plurality of joints;a medical tool supported on a distal end of the multi joint arm; and wherein the actuator includes a motor,', 'wherein the motor includes an electrically active part and at least one conductor in proximity to the electrically active part,', 'wherein an insulating structure is provided with a specific clearance distance and a specific creepage distance between the electrically active part and the at least one conductor., 'an actuator provided in at least one joint of the plurality of the joints,'}3. The medical support arm apparatus according to claim 2 ,wherein the at least one joint of the plurality of the joints is made of a movable mechanism including a stationary part and a movable part, andwherein the motor is attached between the stationary part and the movable part without insulating structure.4. The medical support arm apparatus according to claim 2 , wherein the medical tool on the distal end of the multi joint arm is an observation unit for observation of a surgical site.5. The medical support arm apparatus according to claim 2 , wherein the actuator further includes a reduction gear and an encoder.6. The medical support arm apparatus according to claim 2 , wherein the actuator further includes a torque sensor.7. The medical support arm apparatus according to claim 2 , wherein the actuator is driven by force control.8. The medical support arm apparatus according to claim 2 , wherein each of the specific clearance distance and ...

STATOR, BRUSHLESS MOTOR, STATOR MANUFACTURING METHOD

A stator includes: plural core configuration sections each including plural yoke configuration sections that configure a ring shaped yoke and are segmented in a yoke circumferential direction and plural teeth sections that project from the respective yoke configuration sections along a yoke radial direction, with the plural yoke configuration sections and the plural teeth sections integrated together; plural coil wires that are wound onto the respective teeth sections to configure plural winding portions; and plural insulators that each include plural insulator portions that are integrated to each of the respective core configuration sections and insulate between the teeth sections and the winding portions, and a connection portion that connects together the plural insulator portions. 1. A stator comprising:a plurality of core configuration sections each comprising a plurality of yoke configuration sections that configure a ring shaped yoke and are segmented in a yoke circumferential direction and a plurality of teeth sections that project from the respective yoke configuration sections along a radial direction of the yoke, with the plurality of yoke configuration sections and the plurality of teeth sections integrated together;a plurality of coil wires that are wound onto the respective teeth sections to configure a plurality of winding portions; anda plurality of insulators, each including a plurality of insulator portions and a connection portion that connects together the plurality of insulator portions, the plurality of insulator portions being integrated with respective core configuration sections and insulating the teeth sections from the winding portions, wherein:a plurality of independently formed groups of stator configuration sections are configured by assembling the plurality of core configuration sections with the respective plurality of insulators;in each of the plurality of stator configuration section groups, the plurality of core configuration ...

Insulator, stator assembly, rotating electrical machine, and connection board

An insulator to be attached to a laminated core of a rotating electrical machine includes a frame-shaped body which surrounds the laminated core and around which a coil wire is wound, and first and second flanges provided at both open sides of the body. The second flange has a first recess that extends toward the body.

TWO-LAYER HIGH-VOLTAGE INSULATION SYSTEM AND ELECTRICAL MACHINE

By using an electrically conductive PTFE fabric, high-voltage insulation systems are simplified and can be made thinner, also improving the thermal conductivity. The insulation material is in two layers, each with a hydrophobic and a hydrophobic region, and the hydrophobic regions of the layers are opposed. 1. A high-voltage insulation system comprised of two layers which together define at least one insulation layer , each of the two layers has a respective upper region and a respective lower region which have different physical properties , the upper region of one layer and the lower region of the other layer are both hydrophilic and are opposed to each other in the at least one insulation layer , and the lower region of the one layer and the upper region of the other layer are hydrophobic and face outward from each other in their respective layers.2. The high-voltage insulation system as claimed in claim 1 , in which the two layers have different physical properties.3. The high-voltage insulation system as claimed in claim 2 , in which a respective one of the two layers has locally different physical properties along its thickness.4. The high-voltage insulation system as claimed in claim 1 , in which the hydrophobic regions are comprised of PTFE.5. The high-voltage insulation system as claimed in claim 1 , in which the respective hydrophobic regions of the two layers are arranged one on the other with a contact region between the hydrophobic regions.6. The high-voltage insulation system as claimed in claim 1 , further comprising claim 1 , the layers are formed of electrically conductive PTFE.7. The high-voltage insulation system as claimed in claim 1 , in which each of the layers is formed of a wound tape.8. The high-voltage insulation system as claimed in claim 7 , wherein respective lateral widths of the respective tapes for each of the layers are different.9. The high-voltage insulation system as claimed in claim 7 , wherein the tape layers overlap to a degree ...

COIL ARRANGEMENT FOR AN ELECTRICAL MACHINE

The disclosure relates to an electric machine of an electrical system, (e.g., a drive system), and in particular to the electrical insulation of a coil of the machine. A coil arrangement includes a coil, formed by an electrical coil conductor, and also an insulating arrangement. The coil is arranged at an electrically conductive element of the machine, for example, at or on a corresponding tooth of a stator or of a rotor of the machine, which is formed by a laminated core. The insulating arrangement is configured to insulate the coil from the electrically conductive element, (e.g., from the laminated core forming the tooth). The insulating arrangement has a first, electrically conductive layer, which is at least partly arranged between the coil and the metallic component. Furthermore, the first layer is electrically connected to the metallic component, in order to prevent partial discharges between the insulating arrangement and the metallic component. 1. A coil arrangement comprising:a coil formed by an electrical coil conductor, wherein the coil is configured to be arranged at an electrically conductive component of an electric machine; andan insulating arrangement configured to electrically insulate at least one turn of the electrical coil conductor of the coil from an electrically conductive element of the electric machine,wherein the insulating arrangement comprises a first, electrically conductive layer configured to be arranged between the turn to be insulated of the coil and the electrically conductive element, the first, electrically conductive layer being electrically connectable to the electrically conductive component.2. The coil arrangement of claim 1 , wherein the electrically conductive element is a laminated core of a stator or of a rotor of the electric machine on which the coil is configured to be arranged claim 1 ,wherein the insulating arrangement is a slot insulation,wherein the slot insulation is positioned between the coil and the electrically ...

ROTATING ELECTRICAL MACHINE STATOR AND METHOD FOR MANUFACTURING ROTATING ELECTRICAL MACHINE STATOR

A rotating electrical machine stator and a method for manufacturing a rotating electrical machine stator with high productivity. A rotating electrical machine stator includes a stator core having a slot; and a coil having a leg part including a held-in-slot part held in the slot and a portion extending from the held-in-slot part, and a resin foam is provided between an inner surface of the slot and an outer surface of the held-in-slot part facing the inner surface of the slot. The coil is formed by joining together a plurality of segment conductors each having a joint part, and a conductive joint material is disposed between a pair of joint parts facing each other in the slot. 1. A method for manufacturing a rotating electrical machine stator including a stator core having a slot; and a coil having a leg part including a held-in-slot part held in the slot and a portion extending from the held-in-slot part , the coil is formed by joining a plurality of segment conductors together,', 'the leg parts of the plurality of segment conductors each are provided with a joint part that is joined to another one of the segment conductors with a conductive joint material that joins by heating, and, 'wherein'} a resin disposition step of disposing a resin foam being before foaming on at least either one of an inner surface of the slot and an outer surface of the held-in-slot part facing the inner surface of the slot;', 'a held-in-slot part disposition step of disposing a plurality of the held-in-slot parts in the slot such that a pair of the joint parts to be joined together face each other and the conductive joint material is disposed between the pair of the joint parts facing each other; and', 'a heating step of heating the resin foam and the conductive joint material after the held-in-slot part disposition step, to foam the resin foam and join the pair of the joint parts together with the conductive joint material., 'the method comprises2. The method for manufacturing a ...

Electrical Machine and Vehicle Comprising an Electrical Machine of This Kind

An electrical machine includes a rotor with a plurality of winding slots in which wire windings are arranged. A pair of covering slides is associated with each winding slot, wherein each covering slide has a closure wall, and the closure walls of the pairs of covering slides close the winding slots which are associated with them on that side of the winding slots which faces radially outward. Mutually facing longitudinal ends of the closure walls of the same pair of covering slides overlap in the assembled state in such a way that the closure walls of the same pair of covering slides overlap only in sections. 18.-. (canceled)9. An electrical machine , comprising:a rotor with a plurality of winding slots in which wire windings are arranged;a pair of covering slides associated with each winding slot, wherein each covering slide has a closure wall, and the closure walls of the pairs of covering slides close the winding slots which are associated with them on that side of the winding slots which faces radially outward, andmutually facing longitudinal ends of the closure walls of a same pair of covering slides overlap in an assembled state such that the closure walls of the same pair of covering slides overlap only in sections.10. The electrical machine according to claim 9 , whereinthe closure walls of a pair of covering slides each have a first longitudinal section and a second longitudinal section,the second longitudinal section has a smaller maximum thickness than the first longitudinal section, measured along a radial direction of the rotor, andthe respectively second longitudinal sections of a pair of covering slides face one another.11. The electrical machine according to claim 10 , whereinin the assembled state of the pair of covering slides, the second longitudinal sections of a pair of covering slides overlap in sections, andin the overlapping region, a thickness of the two second longitudinal sections together is not greater than 110% of a maximum thickness of ...

OUTER ROTOR TYPE DYNAMO

An outer rotor type dynamo has a first magnet and a second magnet which are disposed apart from each other in the axial direction, a first stator yoke disposed facing the inside of the first magnet with a gap, a second stator yoke disposed faced the inside of the second magnet with a gap, a hub shaft which magnetically connects the first stator yoke and the second stator yoke, a comb-like yoke in which both end portions of a plurality of projection pieces extending along the axial direction face different magnetic poles with respect to the first magnet and the second magnet, a bobbin disposed between the first stator yoke and the second stator yoke, and a coil wound around the bobbin. 1. An outer rotor type dynamo in which ring-like magnets rotate on an outside of a coil , the outer rotor type dynamo comprising:a first magnet and a second magnet which are disposed apart from each other in an axial direction of the ring shape and each magnet is magnetized so as to form multiple magnetic poles in a circumferential direction of the ring shape;a first magnet yoke disposed on an outside of the first magnet;a second magnet yoke disposed on an outside of the second magnet;a first stator yoke which is disposed facing an inside of the first magnet with a gap and in which a plurality of steel plates are laminated in the axial direction and tooth portions and space of a number corresponding to ½ of a number of magnetic poles of the first magnet each are alternately disposed in the circumferential direction corresponding to each magnetic pole of the first magnet;a second stator yoke which is disposed facing an inside of the second magnet with a gap and in which a plurality of steel plates are laminated in the axial direction and tooth portions and space of a number corresponding to ½ of a number of magnetic poles of the second magnet each are alternately disposed in the circumferential direction corresponding to each magnetic pole of the second magnet;a third stator yoke which ...

ROTATING ELECTRICAL MACHINE

An electrical machine includes a back-yoke engagement portion including a convex portion for a back yoke portion formed on an outer-diameter surface of a pair of back yoke-side coil retaining pieces and a shoe engagement portion including a convex portion for a shoe portion. By the convex portion for the back yoke portion and the convex portion for the shoe portion, the back yoke-side coil retaining pieces and shoe-side coil retaining pieces are biased toward a stator core. 1. A rotating electrical machine , comprising:a rotor rotatable about a shaft; and a back yoke portion having a ring-like shape;', 'a plurality of tooth portions provided at intervals in a circumferential direction so that distal end portions of the plurality of tooth portions project from the back yoke portion in an axial core direction; and', 'shoe portions provided at the distal end portions of the plurality of tooth portions to project in the circumferential direction, wherein:, 'a stator provided so as to surround the rotor, the stator comprising a stator core and a coil mounted to the stator core by winding a conductor wire around the stator core through an insulating bobbin therebetween, the stator core comprisingthe insulating bobbin comprises a first insulating bobbin portion and a second insulating bobbin portion inserted onto both end surfaces of the stator core in an axial direction, respectively; a back yoke engagement portion having an L-like sectional shape, the back yoke engagement portion being configured to be brought into engagement with the back yoke portion;', 'a shoe engagement portion to be brought into engagement with each of the shoe portions; and', 'a coil winding portion having a U-like sectional shape, around which the conductor wire is to be wound, the coil winding portion having an opening portion on an inner side thereof, into which each of the plurality of tooth portions is to be inserted;, 'each of the first insulating bobbin portion and the second insulating ...

MOTOR

The present invention provides a motor including a stator around which coils are wound, a rotor disposed inside the stator, a rotating shaft coupled to the rotor, insulators positioned between the coils and the stator and including outer circumferential surfaces around which the coils are wound, and a motor housing configured to accommodate the insulators, wherein wings configured to arrange the coils are connected to the outer surfaces of the insulators, and an accommodation space configured to accommodate the wings is formed inside the motor housing. 1. A motor comprising:a stator around which coils are wound;a rotor disposed inside the stator;a rotating shaft coupled to the rotor;insulators positioned between the coils and the stator and including outer circumferential surfaces around which the coils are wound; anda motor housing configured to accommodate the insulators,wherein wings configured to arrange the coils are connected to the outer surfaces of the insulators, and an accommodation space configured to accommodate the wings is formed inside the motor housing.2. The motor of claim 1 , wherein:the motor housing includes a housing and a housing cover; andthe accommodation space is formed inside the housing cover.3. The motor of claim 1 , wherein:the insulator includes an inner guide, an outer guide, and a body configured to connect the inner guide and the outer guide; andthe wing is rotatably connected to an outer surface of the outer guide.4. The motor of claim 3 , wherein a plurality of guide grooves configured to guide the coils are formed in the outer surface of the outer guide.5. The motor of claim 4 , wherein the wing and the adjacent wing are connected by a connecting part.6. The motor of claim 5 , wherein a notch is formed in the connecting part.7. The motor of claim 5 , wherein a busbar connecting part connected to a busbar is formed on at least one of the plurality of wings.8. The motor of claim 7 , wherein the accommodation space formed inside the ...

ELECTRICAL PROPULSION SYSTEM WITH CORONA SUPPRESSION ON A VEHICLE

An electrical machine of a vehicle electrical propulsion system includes a stator, a rotor, and a stator winding all disposed within a housing thereof. The stator defines a central bore elongated along a longitudinal axis, and multiple slots circumferentially disposed around the central bore. The rotor is held within the central bore and rotates relative to the stator. The stator winding includes a core conductor, an insulation layer surrounding the core conductor, and a conductive shield layer surrounding the insulation layer. The stator winding extends through the slots of the stator. The stator winding includes an in-slot portion within the slots of the stator and an end-winding portion outside of the slots. The conductive shield layer surrounds the insulation layer along both the in-slot portion and the end-winding portion of the stator winding. 1. An electrical machine of a vehicle electrical propulsion system , the electrical machine comprising:a housing;a stator within the housing, the stator having an annular shape that defines a central bore elongated along a longitudinal axis of the stator, the stator defining slots circumferentially disposed around the central bore;a rotor held within the central bore of the stator, the rotor coupled to a shaft that extends along the longitudinal axis of the stator, the rotor configured to rotate relative to the stator around the longitudinal axis; anda stator winding extending through the slots of the stator within the housing, the stator winding including a core conductor, an insulation layer surrounding the core conductor, and a conductive shield layer surrounding the insulation layer, the stator winding including an in-slot portion within the slots of the stator and an end-winding portion outside of the slots,wherein the conductive shield layer surrounds the insulation layer of the stator winding along both the in-slot portion and the end-winding portion of the stator winding.2. The electrical machine of claim 1 , ...

Dynamo-Electric Machine

A dynamo-electric machine with discharge reduced in a core slot without relation to a position of a stator coil placed in the core slot is provided. For that purpose, the present invention includes: a stator coil including a coil conductor and a main insulation layer covering a surface of the coil conductor; a core slot containing the stator coil; a first semiconducting layer that is placed between the stator coil and the core slot and is wrapped around and in contact with the main insulation layer; and a second semiconducting layer that is wrapped around the stator coil and in contact with the core slot, with the second semiconducting layer overlaid on the first semiconducting layer. The first semiconducting layer has a surface facing toward the core slot and a release layer is formed on the surface facing toward the core slot. The first semiconducting layer has electric connection with an inner peripheral surface of the core slot via the second semiconducting layer.

Stator for electrical machine

A stator for a rotating electrical machine is disclosed, the stator comprising a plurality of stator slots (22) each of which accommodates a plurality of coils (40) of stator windings (18). Radial air gaps (46) are present between the coils of adjacent stator slots as the coils extend out of the stator slots. Insulating means (42, 54, 84) are provided between the coils of a stator slot as the coils extend out of the stator slot. The radial air gaps (46) are defined between the insulating means of the coils of adjacent stator slots. This can allow radial air passages to be formed through the windings, while ensuring sufficient electrical insulation between the coils of a stator slot.

ELECTRICAL MACHINE STATOR WITH OPTIMISED NOTCH FILLING, AND CORRESPONDING METHOD FOR PRODUCTION OF THE SAID STATOR

The invention relates mainly to an outer stator () for a rotary electric machine, comprising a body () provided with a yoke and teeth (), with slots () being defined between pairs of teeth, as well as a winding comprising conductors having segment structures () inserted inside the slots (). In the stator, the ratio between the width of a slot (L) covered with a slot insulator () and the width of a segment structure () covered with enamel (L) is between 0.9 and 2. 11516262528173738281145382. Stator () of a rotary electrical machine comprising a body () provided with a yoke () and teeth () which delimit notches () in pairs , as well as a winding () comprising conductors () with segment structures () inserted inside the notches () , wherein a ratio between a width of a notch (L) covered with notch insulator () and a width of a segment structure () covered with enamel (L) is between 0.9 and 2.2283812. Stator according to claim 1 , wherein claim 1 , with each notch edge () covered with an insulator having an insertion gap (J) relative to an end of a section of a given segment structure () claim 1 , the notch width (L) is equal to the sum of the width of the segment structure (L) and twice the insertion gap (J) claim 1 , said twice the insertion gap (J) being less than 0.3 mm.328. Stator according to claim 1 , wherein the notches () have parallel edges.428. Stator according to claim 1 , wherein the notches () are trapezoidal claim 1 , and are provided with edges claim 1 , the directions of which converge towards the axis of the stator.5. Stator according to claim 4 , wherein for each notch the following is defined:a notch input gap equal to the insertion gap (J);a notch base gap, twice the notch base gap being less than +0.5 mm.6. Stator according to claim 1 , wherein it is without tooth roots.73125. Stator according to claim 6 , comprising corners () situated at free ends of the teeth () claim 6 , with a form which is rounded according to a radius claim 6 , known as the ...

ROTATING ELECTRICAL MACHINE

A rotating electrical machine includes: a rotor core in which a slot passing therethrough is provided; a rotor winding which coil end portion is extended on the axially outer side than the core end face of the rotor core; a U-shaped channel which is arranged on the slot of the rotor core, is touched to come into contact with a bottom portion of the rotor winding, and is axially extended to be projected on the axially outer side than the core end face of the rotor core; a slot cell which insulates the rotor winding and the U-shaped channel from the rotor core; and an interposed piece arranged between the rotor windings at a portion more projected than the core end face of the rotor core. The projected end face of the U-shaped channel is arranged on the axially inner side than the projected end face of the interposed piece. 17-. (canceled)9. The rotating electrical machine according to claim 8 ,wherein said interposed piece is arranged to be extended between said U-shaped channels.10. The rotating electrical machine according to claim 8 ,wherein a chamfered portion is formed on the projected end face portion of said U-shaped channel.11. The rotating electrical machine according to claim 9 ,wherein a chamfered portion is formed on the projected end face portion of said U-shaped channel.12. The rotating electrical machine according to claim 8 ,wherein a chamfered portion is formed on the projected end face portion of said interposed piece.13. The rotating electrical machine according to claim 9 ,wherein a chamfered portion is formed on the projected end face portion of said interposed piece.14. The rotating electrical machine according to claim 8 ,wherein a chamfered portion is formed on each of said U-shaped channel and said interposed piece.15. The rotating electrical machine according to claim 9 ,wherein a chamfered portion is formed on each of said U-shaped channel and said interposed piece.16. The rotating electrical machine according to claim 12 ,wherein the ...

STATOR OF AN ELECTRIC MACHINE AND PRODUCTION THEREOF

A stator for a rotating electric machine includes a laminate stack having a plurality of slots open towards an air gap between the stator and a rotor of the electric machine. A winding includes coils which have turns that pass through the slots of the laminate stack. The turns of the coils are electrically insulated the within the slots from each other and from the laminate stack by a ceramic material. 115.-. (canceled)16. A stator for a rotating electric machine , comprising:a laminate stack having a plurality of slots open towards an air gap between the stator and a rotor of the electric machine;a winding including coils, said coils having turns which pass through the slots of the laminate stack; anda ceramic material to electrically insulate the turns of the coils within the slots from each other and from the laminate stack.171. The stator of claim , further comprising a plurality of profile bars , each of the profile bars being adapted to close a corresponding one of the slots in one-to-one correspondence at a side of the air gap.18. A profile bar for closing a slot on an air gap side in a laminate stack of a stator , said profile bar comprising:a base body made of fiber glass; andan overlay applied on the base body, said overlay being made of a magnetically conductive and electrically insulating material.19. The profile bar of claim 18 , wherein the overlay is made of a soft magnetic composite.20. The profile bar of claim 18 , wherein the base body has a shape of a prism with a triangular base area and two edges extending orthogonal to the base area claim 18 , and further comprising flanges protruding from the edges respectively claim 18 , thereby providing the base body with a T-shaped cross-section with arms formed by the flanges claim 18 , and a triangular foot.21. The profile bar of wherein the overlay has a form of two lateral bodies claim 20 , each said lateral body having a lozenge-shaped cross-section and resting on a flange surface of a corresponding ...

LINER, STATOR ASSEMBLY AND ASSOCIATED METHOD

A liner for use for a resilient stator of an electric machine for positioning between teeth formed in the stator. The stator is conformable from a first generally extending shape with opposed spaced apart ends and to a second generally hollow circular shape. The liner includes a central portion for positioning in a cavity between the adjacent teeth, a first end portion for limiting motion of the liner extending from the central portion and adapted to cooperate with a first end face of the stator, and a second end portion extending from the central portion and cooperating with a second end face of the stator, opposed to the first end face. The first end portion limits motion of the liner. The liner is positioned between adjacent teeth when the stator is in the first shape and remains in the cavity when the stator is in the second shape. 1. A liner for use in an at least partially resilient stator of an electric machine and for positioning between adjacent teeth formed in the stator , the stator being conformable from a first generally extending shape with opposed spaced apart ends and to a second generally hollow circular shape , the liner comprising:a central portion for positioning in a cavity between adjacent teeth formed in the stator;a first end portion extending from said central portion and adapted to cooperate with a first end face of the stator, said first end portion adapted to limit motion of the liner with respect to the stator; anda second end portion extending from said central portion and adapted to cooperate with a second end face of the stator, opposed to the first end face, said first end portion adapted to limit motion of the liner with respect to the stator, said liner adapted to be positioned in the cavity between adjacent teeth formed in the stator when the stator is in a first generally extending shape and adapted to remain in the cavity between adjacent teeth formed in the stator when the stator is in the second generally hollow circular shape ...

ROTARY ELECTRIC MACHINE AND A MANUFACTURING METHOD THEREFOR

A radially outer insulating paper includes: an annular radially outer insulating paper base portion that is disposed on a radially inner side of a row of first coil terminals; and radially outer insulating paper protruding portions that each protrude radially outward from an axially outer end portion of the radially outer insulating paper base portion, and that are inserted between adjacent first coil terminals axially further outward than second bent portions; and a radially inner insulating paper includes: an annular radially inner insulating paper base portion that is disposed on a radially outer side of a row of second coil terminals; and radially inner insulating paper protruding portions that each protrude radially inward from an axially outer end portion of the radially inner insulating paper base portion, and that are inserted between adjacent second coil terminals axially further outward than fourth bent portions. 18-. (canceled)9. A rotary electric machine comprising an armature that comprises:an annular armature core in which slots are arranged circumferentially; andan armature winding that is mounted to said armature core, 2n rectilinear portions that are inserted into said slots, where n is an integer that is greater than or equal to one; and', '(2n−1) coil end portions that link said 2n rectilinear portions consecutively, and, 'said armature winding being configured by mounting coils to said armature core circumferentially at a pitch of one slot, said coils comprisingsaid coils being configured such that first coil terminals protrude outward at a first axial end of said armature core from a radially outermost position inside said slots, are bent at first bent portions in a vicinity of roots thereof so as to be inclined in a first circumferential direction, and are bent at second bent portions near tip ends so as to extend axially outward, and second coil terminals protrude outward at a first axial end of said armature core from a radially innermost ...

STATOR AND ROTATING ELECTRICAL MACHINE INCLUDING THE SAME

A stator reducing a coil end height without interference between conductor segments and without damage to an insulating coating. Each conductor segment includes linear parts inserted in slots formed in a stator core and different in circumferential direction, inclined parts inclined and extending from respective end parts of the linear parts toward a center part so as to project toward the outside in an axis direction from an axis-direction end surface of the core, and a projecting curve part connecting apical ends of the inclined parts to each other and curves and projects toward the outside in the axis direction. Connection parts between the linear parts and the inclined parts and a curved part of the projecting curve part are all bent parts having the same bend radius of minimum R, which has a size equal to or more than a sheet width of a conductor strand. 1. A stator comprising:a stator core having a plurality of slots in a circumferential direction; anda plurality of stator windings placed in the plurality of slots, each of the plurality of stator windings is configured by bonding end parts of a plurality of conductor segments each of which is obtained by forming a conductor strand having a substantially rectangular cross section into a substantially U shape, whereineach of the plurality of conductor segments includes a pair of linear parts to be inserted in a pair of slots formed in the stator core and different in the circumferential direction, a pair of inclined parts that is inclined and extends from end parts on an opposite side of the respective end parts of the pair of linear parts in an axis direction toward a center part so as to project toward the outside in the axis direction from an axis-direction end surface of the stator core, a projecting curve part that connects apical ends of the pair of inclined parts to each other and curves and projects toward the outside in the axis direction, and a crank-shaped part provided in the projecting curve part, ...

MOTOR AND COMPRESSOR

A motor enables an insulator and an iron core to be secured without a reduction in the efficiency of the motor. A motor includes an iron core and an insulator disposed on an axial end surface of the iron core. The iron core includes at least one of grooves on an outer circumferential portion. Each of the grooves is arranged in an axial direction of the iron core on the outer circumferential portion from the end surface. The insulator includes at least one of claws protruding downward in the axial direction from a surface in contact with the iron core. The claws are fitted into the grooves. 1. A motor comprising:an iron core; andan insulator disposed on an axial end surface of the iron core,wherein the iron core includes at least one groove on an outer circumferential portion,wherein the groove is arranged in an axial direction of the iron core on the outer circumferential portion from the end surface of the iron core,wherein the iron core includes a core back portion extending in a circumferential direction, a tooth portion protruding in a central direction from a middle portion of the core back portion, and a tooth end portion located at an end of the tooth portion,wherein the insulator includes at least one first protrusion protruding in the axial direction from a surface in contact with the iron core,wherein the first protrusion is contained within the groove,wherein the insulator includes at least one second protrusion protruding in the axial direction from the surface in contact with the iron core, andwherein the second protrusion is in contact with an inner circumferential surface of the tooth end portion, and the insulator holds the iron core.2. (canceled)3. The motor of claim 1 ,wherein the second protrusion is in contact with the inner circumferential surface of the tooth end portion at a part of the tooth end portion that does not overlap a projection of the tooth portion onto a plane of the tooth end portion.4. The motor of claim 1 , further comprisinga ...

Stator, motor, blower, and stator manufacturing method

A stator includes a first teeth unit including a first insulator having an annular first crossover wire guide and a plurality of first winding units radially provided at regular intervals on an outer circumference of the first crossover wire guide to cover teeth of one phase group of an alternating current, the teeth of the one phase group having upper halves fitted to the first winding units, a third insulator that covers lower halves of the teeth, and a winding wire of one phase wound around the teeth of the one phase group, a second teeth unit having an identical configuration to that of the first teeth unit in which a winding wire of the other phase is wound in a concentrated manner, with second winding units inserted between adjacent ones of the first winding units, and an annular yoke including a plurality of recesses at regular intervals.

ELECTRICAL GENERATOR AND ELECTRIC MOTOR FOR DOWNHOLE DRILLING EQUIPMENT

An electrical generator positionable downhole in a well bore includes a tubular housing having a first longitudinal end and a second longitudinal end, the housing having an internal passageway with a plurality of layers. The layers comprise at least a first protective layer, a second protective layer, and an electrically conductive layer positioned between the first and second protective layers. The layers define an internal cavity. A shaft with magnetic inserts is movably positioned in the internal cavity. Electrical current is generated when the shaft is moved. Alternatively, the device may be supplied with electrical power and used as a downhole motor. 1. An electrical generator positionable in a well bore , the electrical generator comprising:a tubular housing having a first longitudinal end and a second longitudinal end, said tubular housing having an internal passageway, said passageway having a plurality of layers positioned therein, said layers comprising at least a first protective layer, a second protective layer, and an electrically conductive layer positioned between the first and second protective layers, said layers defining an internal cavity, said electrically conductive layer electrically coupled at a first end to a first electrical end conductor positioned proximal to the first longitudinal end of the tubular housing and electrically coupled at a second end to a second electrical end conductor positioned proximal to the second longitudinal end of the tubular housing; anda shaft with magnetic inserts, said shaft movably positioned in the internal cavity of the housing.2. The electrical generator of claim 1 , wherein the first protective layer is positioned along an inner surface of the tubular housing claim 1 , the electrically conductive layer is along an inner surface of the first protective layer and the second protective layer is positioned along an inner surface of the electrically conductive layer.3. The electrical generator of or claim 1 , ...

Stator, motor and pump device

A stator is provided. In this stator, a stator core comprises: an outer peripheral ring part formed in a ring shape; and multiple salient pole parts protruded from the outer peripheral ring part to an inner side in a radial direction of the stator. The outer peripheral ring part comprises outer peripheral parts in a same number as multiple salient pole parts. When an outer side face of the outer peripheral part in the radial direction is an outer peripheral face, both end side portions in the circumferential direction of the outer peripheral face of one of the outer peripheral parts are respectively formed to be a curved face part in a convex curved face shape which is a circular arc shape, curvature radii of the circular arc shapes are equal to each other and their curvature centers are common when viewed in an axial direction of the stator.

STATOR FOR ROTARY ELECTRIC MACHINE

A stator for a rotary electric machine includes a stator core and a stator coil. The stator core includes an annular back yoke, a plurality of teeth, and a plurality of slots. The stator coil, being housed in the slots and wound around the teeth of the stator core, includes coil ends protruding from the respective end faces of the stator core in the axial direction. The rotary electric machine stator further includes an insulating sleeve which is wound around root portion of the coil end on the end face of the stator core in the axial direction and disposed along the circumferential direction of the back yoke. 1. A stator for a rotary electric machine , the stator comprising:a stator core including an annular back yoke, a plurality of teeth protruding from the back yoke toward an inner circumference of the back yoke, and a plurality of slots each corresponding to a space between a pair of adjacent teeth;a plurality of stator coils that are housed in the slots and wound around the teeth of the stator core, the plurality of stator coils having coil ends protruding from respective end faces of the stator core in an axial direction; andan insulating sleeve, the insulating sleeve being wound around a root portion of the coil end on the end face of the stator core in the axial direction and being disposed along a circumferential direction of the back yoke.2. The stator for a rotary electric machine according to claim 1 , whereinthe insulating sleeve includes a plurality of refrigerant passage holes formed through the insulating sleeve toward a center axis of the stator core. The disclosure of Japanese Patent Application No. 2017-154938 filed on Aug. 10, 2017 including the specification, claims, drawings, and abstract is incorporated herein by reference in its entirety.The present disclosure relates to a stator for a rotary electric machine, and more particularly to a stator for a rotary electric machine, in which stator coils are wound around a stator core, with coil ends ...

MOTOR

A motor includes a shaft, an annular rotor magnet, an armature arranged to cover the rotor magnet, an upper bracket fixed to an axial upper portion of the armature, and a lower bracket fixed to an axial lower portion of the armature. The armature includes an annular core-back, a plurality of magnetic pole teeth protruding radially inward from the core-back, an insulator arranged to cover the magnetic pole teeth, and a coil wound around the magnetic pole teeth through the insulator. The insulator includes an annular core-back insulating portion arranged radially outward of the coil and extended axially upward. The upper bracket is fixed by a plurality of fixing members positioned radially inward of an outer circumferential surface of the core-back. 1. (canceled)3. The motor of claim 2 , wherein the upper bracket includes a cover portion and a protrusion portion protruding axially downward from the cover portion claim 2 , the protrusion portion making contact with an outer circumferential surface of the core-back insulating portion.4. The motor of claim 3 , wherein the core-back includes an outer circumferential surface located near the upper end thereof claim 3 , the outer circumferential surface of the core-back including a large-diameter portion and an upper small-diameter portion positioned above the large-diameter portion claim 3 , the upper small-diameter portion being smaller in outer diameter than the large-diameter portion claim 3 , the protrusion portion making contact with the upper small-diameter portion.5. The motor of claim 3 , wherein the core-back insulating portion includes raised portions protruding radially outward beyond the coil claim 3 , the raised portions including fixed portions to which the fixing members are fixed.6. The motor of claim 5 , wherein the protrusion portion includes depressed portions which are depressed axially upward from the lower end thereof claim 5 , the raised portions positioned within the depressed portions.7. The motor ...

ROTATING ELECTRIC MACHINE AND ROTATING ELECTRIC MACHINE MANUFACTURING METHOD

A unit coil includes: first, second, third, and fourth turn portions extending in a bent manner from first, second, third, and fourth slot accommodation portions and each connecting the slot accommodation portions to each other; and first, second, third, and fourth leg portions. Recesses are formed in surfaces opposed to each other at bent parts of the turn portions or bent parts of the turn portion and the leg portion, that extend in a bent manner toward the same side in the circumferential direction from the slot accommodation portions adjacent to each other in the radial direction. 1. A rotating electric machine comprising an armature and a rotor , the armature including an armature core and an armature winding formed by arranging a plurality of unit coils along a circumferential direction , whereineach unit coil includes: a plurality of slot accommodation portions located in different slots; a turn portion extending in a bent manner from each slot accommodation portion and connecting the slot accommodation portions to each other; and a leg portion extending in a bent manner from each slot accommodation portion, andthe plurality of slot accommodation portions are stacked in a radial direction in the slots, and recesses dented in the radial direction are formed in surfaces only opposed to each other at bent parts of a pair of turn portions or bent parts of the turn portion and the leg portion, that extend in a bent manner toward the same side in the circumferential direction from the slot accommodation portions adjacent to each other in the radial direction.2. The rotating electric machine according to claim 1 , whereineach unit coil includes one partial coil and another partial coil that overlap each other in the radial direction,the one partial coil includes a first slot accommodation portion for a first layer on an inner side in the radial direction, and a fourth slot accommodation portion for a fourth layer on an outer side in the radial direction, the fourth ...

Stator arrangement comprising a winding arrangement

An external stator arrangement has a stator core, a wire guiding arrangement and a winding arrangement with a winding wire. The winding arrangement is designed as a delta circuit and has a number SC of stator coils. SC=N*3 where N=1, 2, 3, 4, 5, . . . . The stator core has a magnetic return path, stator poles and slots. The wire guiding arrangement has a first contact-making arrangement, a second contact-making arrangement and a third contact-making arrangement. The winding wire runs from the first contact-making arrangement, via at least one of the stator coils, to the second contact-making arrangement, from the second contact-making arrangement, via at least one of the stator coils, to the third contact-making arrangement, and from the third contact-making arrangement, via at least one of the stator coils to the first contact making arrangement. Contact elements are electrically connected to the winding wire in order to serve as winding connections.

MOTOR STATOR STRUCTURE AND STATOR ASSEMBLY

A stator assembly includes a stator core, an insulated wire frame, a coil, and an annular insulation structure. The stator core includes a magnetic yoke portion and a radial tooth portion, and the radial tooth portion extends from the magnetic yoke portion. The insulated wire frame disposed outside the radial tooth portion of the stator core has a winding slot. The coil is wound in the winding slot of the insulated wire frame annularly. The annular insulation structure is formed by injection moulding and wraps an area where the coil is exposed out of the insulated wire frame, and the coil is packaged between the insulated wire frame and the annular insulation structure. 1. A stator assembly , comprising:a stator core, comprising a magnetic yoke portion and a radial tooth portion, wherein the radial tooth portion extends from the magnetic yoke portion; andan insulated wire frame, disposed outside the radial tooth portion of the stator core, and having a winding slot;a coil, wound in the winding slot of the insulated wire frame annularly; andan annular insulation structure, formed by means of injection moulding, and wrapping an area where the coil is exposed out of the insulated wire frame, so that the coil is packaged between the insulated wire frame and the annular insulation structure.2. The stator assembly according to claim 1 , wherein the insulated wire frame is formed by means of insert molding and surrounds the radial tooth portion claim 1 , and the annular insulation structure wraps the coil.3. The stator assembly according to claim 1 , wherein the radial tooth portion comprises a first end and a second end in an axial direction claim 1 , and the insulated wire frame comprises a first U-shaped frame sleeved on the first end of the radial tooth portion and a second U-shaped frame sleeved on the second end of the radial tooth portion.4. The stator assembly according to claim 3 , wherein two gaps are formed between the first U-shaped frame claim 3 , the second U ...

Pole tooth module for an electric machine, active part comprising a pole tooth module, and electric machine

A pole tooth module for an electric machine is provided. The pole tooth module includes a pole tooth with a pole shoe and a pole head, a coil arranged around a circumferential surface of the pole tooth between the pole shoe and the pole head, and an insulation body enclosing the pole tooth and designed to electrically insulate the pole tooth from the coil. To enclose the pole tooth, the insulation body has a central piece, a first frame element and a second frame element. The central piece is arranged between the coil and the circumferential surface and at least partially surrounds the circumferential surface of the pole tooth. The first frame element adjoins a side of the central piece, which side faces the pole head. The second frame element adjoins an opposite side of the central piece, which opposite side faces the pole shoe, and encloses the pole shoe.

MOTOR

A motor includes a housing having a ring-shaped protruding portion protruding from a lower surface thereof. A stator core is fixed to an inner circumferential surface of the housing and on which a coil is wound, and an insulator is provided between the stator core and the coil. A lower end of the insulator is in contact with the protruding portion. Vibration and noise generated from the housing may be reduced without changing a material or a thickness of the housing. 1. A motor comprising:a housing having a recess protruding into an inner space of the housing;a stator including a stator core provided at an inner circumferential surface of the housing, a coil wound on the stator core, and an insulator disposed between the stator core and the coil;a rotor provided in the housing; and 'wherein the recess includes a first inclined surface in contact with the insulator.', 'a rotational shaft configured to rotate with the rotor,'}2. The motor of claim 1 , wherein the recess surrounds the rotational shaft.3. The motor of claim 1 , wherein the recess comprises:the first inclined surface protruding into the inner space to be in contact with the insulator and forming a first sidewall of the recess; anda second inclined surface protruding into the inner space and forming a second sidewall of the recess.4. The motor of claim 3 , wherein the second inclined surface supports a bearing configured to support the rotational shaft.5. The motor of claim 3 , wherein the recess further comprises a bottom surface configured to connect the first inclined surface with the second inclined surface.6. The motor of claim 5 , further comprising a reinforcing member provided in a space on an outer surface of the housing defined by the first inclined surface claim 5 , the second inclined surface claim 5 , and the bottom surface.7. The motor of claim 1 , wherein the insulator comprises an end bent to be in contact with the inclined surface of the recess.8. The motor of claim 1 , wherein the ...

COIL INSULATING STRUCTURE OF ELECTROMAGNETIC MOTOR STATOR

A coil is wound via an electrically insulating member within a slot of a stator core of an electromagnetic motor which is formed of a stator and a rotor. Groove portions are formed to oppose one another in respective opposing portions of a slot opening portion side of the electrically insulating member. An electrically insulating sheet is disposed by being inserted into the pair of groove portions. 1. A coil insulating structure of an electromagnetic motor stator formed by winding a coil via an electrically insulating member within a slot of a stator core of an electromagnetic motor formed of a stator and a rotor ,wherein groove portions are formed to oppose one another in respective opposing portions of a slot opening portion side of the electrically insulating member, and an electrically insulating sheet is disposed by being inserted into the pair of groove portions.2. The coil insulating structure of an electromagnetic motor stator according to claim 1 ,wherein a thickness of the electrically insulating member of the opposing portions of the slot opening portion side is increased such that a width of the slot opening portion is uniform in relation to a slot center line in a state in which the electrically insulating member is mounted within the slot. 1. Technical FieldThe present invention relates to an improvement in a coil insulating structure of an electromagnetic motor stator for securing an electrical insulation distance between a coil which is wound within a slot of a stator and a stator core.2. Description of Related ArtAs the electromagnetic motor, for example, a brushless motor, a PM-type motor (a Permanent Magnet Motor), a hybrid-type motor and the like are known.A coil is wound within the slot of the stator core of the electromagnetic motor via an electrically insulating member (hereinafter simply referred to as an “insulating member”). In order to ensure that the insulating structure of the coil complies with foreign safety standards (UL and CSA ...

Axial Gap Rotary Electric Machine

To reduce an axial voltage while securing a high output, high efficiency, and assemblability of an axial gap rotary electric machine. An axial gap rotary electric machine includes: a stator, formed by arranging a plurality of core members circularly about a shaft in a direction in which magnetic lines are parallel with the shaft, the core member having at least an iron core and a coil wound around an outer circumference of the iron core; at least one rotor facing the stator with a predetermined air gap interposed therebetween in a shaft axial direction; and a housing having an inner circumferential surface opposing the stator and the rotor in a radial direction. The axial gap rotary electric machine further includes a wiring board that has: a bus portion continuous in the circumferential direction; a coil connection portion protruding from the bus portion and connected to the coil; and an external connection portion protruding from the bus portion. The wiring board is arranged at an outer circumferential side of the plurality of circularly-arranged iron cores. 1. An axial gap rotary electric machine comprising:a stator, formed by arranging a plurality of core members circularly about a shaft in a direction in which magnetic lines are parallel with the shaft, the core member having at least an iron core and a coil wound around an outer circumference of the iron core;at least one rotor facing the stator with a predetermined air gap interposed therebetween in a shaft axial direction; anda housing having an inner circumferential surface opposing the stator and the rotor in a radial direction,the axial gap rotary electric machine further comprising a wiring board that has: a bus portion continuous in the circumferential direction; a coil connection portion protruding from the bus portion and connected to the coil; and an external connection portion protruding from the bus portion,wherein the wiring board is arranged at an outer circumferential side of the plurality of ...