СПОСОБ ДЛЯ ОБНАРУЖЕНИЯ ПРЕДСТОЯЩЕГО ИЛИ УЖЕ ОСУЩЕСТВИВШЕГОСЯ ОБРАЗОВАНИЯ КОНДЕНСАТА НА/В ЭЛЕКТРОДВИГАТЕЛЯХ И СПОСОБ ДЛЯ ПРЕДОТВРАЩЕНИЯ СООТВЕТСТВУЮЩЕГО ОБРАЗОВАНИЯ КОНДЕНСАТА И/ИЛИ ДЛЯ УСТРАНЕНИЯ/ДЛЯ УМЕНЬШЕНИЯ КОНДЕНСАТА НА/В ЭЛЕКТРОДВИГАТЕЛЯХ

Изобретение относится к электротехнике. Технический результат заключается в повышении надежности работы путем предотвращения или устранения образования конденсата на/в электродвигателях. Заявлены способ для обнаружения предстоящей или уже осуществившейся конденсации на/в электродвигателях, в частности на/в электродвигателях как составной части вентиляторов или групп вентиляторов, и способ для предотвращения образования конденсата и/или уменьшения конденсата на/в электродвигателях, в частности на/в электродвигателях как составной части вентиляторов или групп вентиляторов. Способ для обнаружения включает в себя следующие этапы: нахождение температур конструктивных элементов, предпочтительно температур поверхности на электронике, на/в двигателе, на/в вентиляторе или на/в группах вентиляторов. Далее нахождение температуры точки росы или отдельных температур точки росы на электронике, в/на двигателе, вентиляторе или на/в группах вентиляторов. Потом осуществляют сравнение соответствующей температуры ...

СПОСОБ ДИНАМИЧЕСКОГО КОНТРОЛЯ ВНУТРЕННИХ ПАРАМЕТРОВ СИСТЕМ ЭЛЕКТРОДВИГАТЕЛЯ

Изобретение относится к области электротехники и предназначено для проведения измерений и осуществления динамического контроля соответствующих данных, к примеру, таких, как температура и вибрация, в электродвигателе. Сущность изобретения состоит в том, что оно предусматривает использование волоконно-оптического кабеля (5), заделанного в электроизоляцию (4), по меньшей мере, одного провода (3) обмоток электродвигателя, причем такой кабель (5) образует собой, по существу, растянутый термометр и/или вибродатчик. Технический результат от использования данного изобретения состоит в упрощении и в удешевлении предлагаемого способа, а также в повышении его надежности. 4 з.п. ф-лы, 3 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.

ЭЛЕКТРОМОТОР

Изобретение относится к электротехнике и может быть использовано в электромоторах, применяемых для работы в бытовых устройствах, таких как стиральные или посудомоечные машины. Технический результат состоит в повышении безопасности путем упрощения подключения и отключения термовыключателя. Электромотор (1) содержит статор (2), обмотку (3), имеющую более одного ограничителя (4), позволяющего разместить ее на статоре (2) и ограничивающего обмотку. Термовыключатель (6) отключает электрический ток при перегреве путем определения температуры. Он содержит адаптер (7), обеспечивающий подключение термовыключателя (6) последовательно с обмоткой (3). Адаптер установлен на электромоторе (1) с возможностью закрепления/съема, содержит два контакта (8) для подачи электроэнергии от источника питания. К обмоточным контактам (18) прикреплены начальный и оконечный концы обмотки (3). Держатели (9) поддерживают термовыключатель (6) и обеспечивают контакт термовыключателя (6) по некоторой площади поверхности ...

СПОСОБ И СИСТЕМА ДЛЯ НАДЕЖНОГО ЗАПУСКА ТУРБИННОГО ДВИГАТЕЛЯ

Система запуска турбинного двигателя содержит аккумуляторную батарею, стартер постоянного тока, электронный вычислитель регулирования, редуктор трансмиссии, пусковые вспомогательные устройства, газогенератор, который в свою очередь содержит компрессор, камеру сгорания и турбину высокого давления вместе со свободной турбиной. Первая и вторая цепи соединяются параллельно и размещаются между упомянутой аккумуляторной батареей и стартером постоянного тока. Первая цепь содержит преобразователь постоянного тока в постоянный ток, соединенный последовательно с первым переключателем, а вторая цепь содержит второй переключатель. Система дополнительно содержит, по меньшей мере, датчик для измерения скорости вращения компрессора, датчик для измерения температуры на входе в свободную турбину и схему управления для управления первым и вторым переключателями в зависимости от информации, предоставляемой посредством датчика для измерения скорости вращения компрессора и посредством датчика для измерения ...

ЭЛЕКТРОМОТОР И СПОСОБ ЕГО ИЗГОТОВЛЕНИЯ

Изобретение относится к электротехнике и может быть использовано в электромоторах, работающих с откачивающим насосом в таких бытовых устройствах, как стиральные и посудомоечные машины. Технический результат состоит в повышении надежности и упрощении блокировки ротора для остановки электромотора при перегреве его обмотки в случае его перегрузки. Электромотор (1) содержит статор (2) и один или несколько катушечных каркасов (7). Обмотка (5) закреплена на статоре (2), намотана вокруг катушечного каркаса 7 и содержит первую полярную обмотку (9), имеющую начальный конец (L1) и оконечный конец (А1), и вторую полярную обмотку (10), имеющую начальный конец (L2) и оконечный конец (А2). Термовыключатель (8) содержит два температурных конца (T1, T2), посредством которых он соединен последовательно между полярными обмотками (9, 10), устанавливая электрическое соединение. При этом один из температурных концов (T1) соединен с оконечным концом (А1) первой полярной обмотки (9), а другой температурный конец ...

ЭЛЕКТРОМОТОР

... 1. Электромотор (1), содержащий статор (2), обмотку (3), образованную изолированным медным проводом, обмоточную катушку (5), на которую намотана обмотка (3), имеющая более одного ограничителя (4) обмотки, позволяющего разместить ее на статоре (2) и ограничивающего обмотку, термовыключатель (6), который отключает электрический ток при перегреве путем определения температуры, отличающийся тем, что содержит адаптер (7), обеспечивающий подключение термовыключателя (6) последовательно с обмоткой (3), установленный на электромоторе (1) с возможностью закрепления/съема, содержащий два контакта (8) для подачи электроэнергии от источника питания, один или несколько обмоточных контактов (18), к которым прикреплены начальный и оконечный концы обмотки (3), более одного держателя (9) термовыключателя, поддерживающих термовыключатель (6), обеспечивающих контакт термовыключателя (6) по некоторой площади поверхности и проводящих электрический ток и тепло от обмоточного контакта (18) и обмоток (3), и имеющий ...

ДВИГАТЕЛЬ ДЛЯ ВОЗДУХОДУВОК, СООТВЕТСТВЕННО ВЕНТИЛЯТОРОВ, НАНОСОВ ИЛИ КОМПРЕССОРОВ, СПОСОБ ЭКСПЛУАТАЦИИ ТАКОГО ДВИГАТЕЛЯ И ВЕНТИЛЯТОРНАЯ СИСТЕМА, ИМЕЮЩАЯ ОДИН ИЛИ НЕСКОЛЬКО ДВИГАТЕЛЕЙ/ВЕНТИЛЯТОРОВ

Изобретение касается двигателя для воздуходувок, соответственно вентиляторов, насосов или компрессоров. Двигатель, имеющий интегрированную электронику двигателя и сенсорный блок для непосредственного или опосредствованного регулирования давления/расхода, регулирование которого может осуществляться изнутри или извне, при этом сенсорный блок выполнен в виде насаживаемого на электронику двигателя или вставляемого в электронику двигателя модуля или по меньшей мере частично интегрирован в электронику двигателя и снабжается энергией изнутри, причем сенсорный блок включает в себя сенсор давления, который через соединение по потоку определяет локальное давление или разность давления в двух местах и передает соответствующий этому давлению аналоговый или цифровой сигнал в обрабатывающий блок. Это позволяет создать двигатель, который пригоден для привода вентиляторов, насосов, компрессоров, при наиболее низких возможных издержках техники коммутации и техники управления, соответственно регулирования ...

СИСТЕМА, СНАБЖЕННАЯ ЭЛЕКТРИЧЕСКОЙ МАШИНОЙ, А ТАКЖЕ СПОСОБ ЭКСПЛУАТАЦИИ ЭЛЕКТРИЧЕСКОЙ МАШИНЫ

... 1. Система регистрации температуры вращающихся частей электрической машины, снабженная электрической машиной, которая включает в себя статор (4) и ротор (1), а также инфракрасным температурным сенсором, при этом поле детекции инфракрасного температурного сенсора ориентировано по поверхности корпуса ротора (1), отличающаяся тем, чтоинфракрасный температурный сенсор представляет собой термоэлектрический столбик (6), служащий для регистрации температуры ротора (1), расположенный в пазу статора (4).2. Система по п.1, отличающаяся тем, что термоэлектрический столбик (6) расположен в пазовом клине (5) паза статора (4).3. Система по п.1, отличающаяся тем, что устройство для измерения собственной температуры термоэлектрического столбика (6) конфигурировано для регистрации температуры статора (4).4. Система по любому из пп.1-3, отличающаяся тем, что система включает в себя несколько термоэлектрических столбиков (6), расположенных по продольной оси электрической машины.5. Система по п.4, отличающаяся ...

VERFAHREN ZUR HERSTELLUNG EINES BETRIEBSMAESSIG SPALTROHRLOSEN ELEKTROMOTORS MIT VERGOSSENER STAENDERWICKLUNG

MINIATURMOTOR MIT EINEM EINEN POSITIVEN KOEFFIZIENTEN AUFWEISENDEN THERMISTOR

Motorenidentifikation

Die Erfindung betrifft ein Verfahren zum Überwachen wenigstens der Motortemperatur als Motorparameter beim Betreiben wenigstens eines Elektromotors (1) an einer Leistungselektronik (2) mit den folgenden Schritten: Erfassen elektrischer Motorgrößen durch Messen mit einer Messvorrichtung (3), Erstellen einer Parameterdatei (6) mit Motorparameter (4) anhand der gemessenen Motorgrößen oder Auslesen der Motorparameter (4) aus einem Datenspeicher (7), wobei eine Regelungsvorrichtung (5) den Elektromotor (1) betreffend wenigstens der Temperatur als Motorparameter anhand der weiteren Motorparameter (4) aus der Parameterdatei (6) steuert.

Verfahren und Vorrichtung zur Herstellung eines Stators sowie Stator

Die Erfindung betrifft ein Verfahren zur Herstellung eines Stators mit einem Statorkörper und wenigstens einer daran angebrachten Spule (20a), welche durch ein automatisiertes Einlegen von Spulendraht (20) mit mehreren Wicklungen in einen Spulenraum des Stators gebildet wird, wobei der Spulenraum eine Anzahl von Spulennuten umfasst, die von Polhörnern und einer Statorwand des Stators begrenzt werden, und wobei wenigstens ein Temperatursensorelement (34) im Bereich der Spule (20a) vorgesehen wird, um die Temperatur der Spule (20a) während des Betriebs zu erfassen. Das Verfahren ist gekennzeichnet durch die folgenden Verfahrensschritte: Einlegen wenigstens eines Platzhalterelements in der Weise, dass sich beim automatisierten Einlegen des Spulendrahts (20) in den Spulenraum wenigstens ein durch das wenigstens eine Platzhalterelement begrenzter Hohlraum (36) in der Wicklungsstruktur der Spule (20a) oder in wenigstens einer der Spulennuten (14) ergibt, Automatisiertes Einlegen des Spulendrahts ...

Temperaturschutz für EC-Motor

Es wird ein Elektromotor (1) beschrieben, umfassend: eine Wicklung (L1) zum Aufbau eines magnetischen Feldes, einen ersten Phasenanschluss (W), einen zweiten Phasenanschluss (U) und ein Schutzelement (7) zur Temperaturmessung der Wicklung (L1) umfassend: einen ersten Schutzschaltungsanschluss (T1, 3) und einen zweiten Schutzschaltungsanschluss (T2, 4), wobei der erste Phasenanschluss (W) und der erste Schutzschaltungsanschluss (T1, 3) identisch sind.

Temperatursensorhalter für eine elektrische Maschine

Temperatursensorhalter (10) für eine elektrische Maschine (20) eines Kraftfahrzeugs, wobei der Temperatursensorhalter (10) einen Grundkörper (12) und einen Befestigungsabschnitt (16) aufweist, wobei der Befestigungsabschnitt (16) zur Bereitstellung einer Rastfunktion begrenzt verschwenkbar ausgebildet ist, wobei zwischen dem Befestigungsabschnitt (16) und dem Grundkörper (12) ein Aufnahmespalt (33) ausgebildet ist, in dem ein Halteelement (32) angeordnet werden kann, demgegenüber der Temperatursensorhalter (10) über eine Sperrfläche (38) einer Rastnase (36) des Befestigungsabschnitts (16), die zu dem Grundkörper (12) hin weist, befestigbar ist, wobei die Sperrfläche (38) den Aufnahmespalt (33) abdeckt oder diesen überdeckt. Zudem wird eine elektrische Maschine mit einem derartigen Temperatursensorhalter beschrieben.

KOMBINIERTER DREHZAHL/TEMPERATUR-MESSWERTAUFNEHMER.

Motorschutzschaltgeraet

ROTIERENDE ELEKTRISCHE MASCHINE

Eine rotierende elektrische Maschine umfasst einen Stator, einen Rotor mit einem Permanentmagneten, eine erste Anzahl von ersten Spulen und eine zweite Anzahl von zweiten Spulen. Die zweite Anzahl unterscheidet sich von der ersten Anzahl. Die erste Spule ist am Stator so angeordnet, dass sich Spulenachse entlang einer Drehachsenrichtung des Rotors erstreckt. Die zweite Spule ist auf dem Rotor so angeordnet, dass eine sich ihre Spulenachse entlang der Drehachsenrichtung des Rotors erstreckt. Die erste Spule und die zweite Spule sind auf dem Stator bzw. dem Rotor so angeordnet, dass sie sich in einem Zustand, in dem sich der Rotor in einer vorbestimmten Drehwinkelposition befindet, einander nahe gegenüberliegen. Die ersten Spulen sind so ausgebildet, dass sie abhängig von einer relativen Position in Bezug auf die zweite Spule eine Spannung induzieren.

Polumschalter

ARMATUR ZUR ELEKTRISCHEN TEMPERATURMESSUNG AN LAGERN ELEKTRISCHER MASCHINEN O.DGL

Electric motor for driving industrial truck with rotor, has fastening device that fastens sensor module in predetermined position in or on housing of electric motor

The electric motor (10) has tachometer (34) which detects the speed of rotor (14) with encoder wheel (24). A temperature sensor (36) detects an engine temperature. A sensor module (26) has sensor module housing in which temperature sensor and tachometer are arranged. A fastening device fastens the sensor module in predetermined position in or on a housing of electric motor. The temperature sensor is a non-contact temperature sensor and the sensor module is formed as a unit replaceable spare component.

Stator einer elektrischen Maschine

Es sind schon Statoren einer elektrischen Maschine bekannt, mit elektrischen Spulen und mit einem Temperatursensor zur Erfassung der Temperatur an einer der elektrischen Spulen, wobei der Temperatursensor im Bereich zwischen zwei Spulen an einem Sensorträger vorgesehen ist und ein Sensorelement und zumindest ein mit dem Sensorelement verbundenes Sensorkabel umfasst. Nachteilig ist, dass das Sensorelement des Temperatursensors nicht sicher mit den Spulen kontaktiert. Damit wird nicht sicher die Temperatur der Spule, sondern unter Umständen die Temperatur im Spalt zwischen den Spulen gemessen. Die Temperaturmessung ist daher nicht zuverlässig. Bei dem erfindungsgemäßen Stator einer elektrischen Maschine wird die Temperaturmessung verbessert. Erfindungsgemäß ist vorgesehen, dass der Sensorträger (6) ein Federelement (15) aufweist, das das Sensorelement (9) gegen eine der Spulen (2) drückt.

Overheating warning system for electric motor incorporates switching module connected to buzzer and optical display with several display fields

The electric motor (10) has a cylindrical or ribbed casing with the drive shaft emerging from one end and a cap on the other end. The cap contains a temperature-sensitive switching module (40) connected to a temperature display (20) with several display fields (200). The switching module is also connected to a buzzer (30).

Stator und elektrische Maschine

Die Erfindung betrifft einen Stator umfassend wenigstens eine Isolationsscheibe (10), wenigstens einen Verschaltungssteg (11) und wenigstens einen Temperatursensor (12), wobei- die Isolationsscheibe (10) ein Halteelement (13) und der Verschaltungssteg (11) eine Anlagefläche (14) für den Temperatursensor (12) aufweisen,- der Verschaltungssteg (11) und der Temperatursensor (12) zumindest abschnittsweise in dem Haltelement (13) angeordnet und gehalten sind und- der Temperatursensor (12) die Anlagefläche (14) zumindest teilweise flächig berührt und durch eine Federkraft und/oder durch eine Klemmkraft gegen die Anlagefläche (14) gepresst ist.

Sensorbefestigung zur Temperaturmessung in einer elektrischen Maschine eines Kraftfahrzeugs

Es ist eine Sensorbefestigung (10) zur Temperaturmessung in einer elektrischen Maschine zum Antrieb eines Kraftfahrzeugs vorgesehen mit einem Haltekörper (16) zur Aufnahme eines Temperatursensors (12), einem Abstützkörper (20) zur Anlage an einem Statorblech (22) der elektrischen Maschine, wobei der Abstützkörper (20) mit dem Haltekörper (16) aufspreizbar, insbesondere im Wesentlichen gelenkig, verbunden ist, und einem Spreitzmittel (36) zum Wegspreizen des Haltekörpers (16) von dem Abstützkörper (20). Durch die in radialer Richtung verlagerbaren und axial an der Wicklung (14) vorbeibewegbaren Sensorbefestigung (10) kann der Temperatursensor (12) von radial außen her am radial inneren Rand der Wicklung (14) positioniert und mit Hilfe des Spreizmittels (36) thermisch angekoppelt werden, so dass eine wartungsfreundliche und genaue Messung einer Maximaltemperatur in einer Wicklung (14) einer elektrischen Maschine für ein Kraftfahrzeug ermöglicht ist.

Thermal and overload protection for small electromotors

The bipolar thermal protection pile for monitoring the temp. and overload of small motors, especially for textile machine spindles and the like with a three-phase current supply, has an external PTC resistance (3) and a heating resistance (4) in series, directly next to the pile (2). They generate a heat to hold the bimetal switch (6) open until the current feed to the motor (7) is broken by the motor switch. Also claimed is an assembly with a thermal protection (2) coupled to an external PTC resistance (3) and resistance heater (4) in series.

TAUCHPUMPE

Vorrichtung zur UEberlastungssicherung von Elektromotoren

Elektrodynamische Maschine mit Ständerwicklungstemperatur-Messeinrichtung

KOMPAKTANTRIEB

VERSORGUNGSSCHALTUNG FÜR EINE ELEKTROMOTORBÜRSTE I

Schutzschalter mit einem Bimetallstreifen

Temperature sensor for electric motor stator winding, has sensor element and its associated electrical leads enclosed by shrink-fit sleeve

The temperature sensor has a sensor element (1), with temperature-dependent electrical characteristics and associated electrical leads (3,4), used for measuring the latter, contained within a shrink-fit sleeve (2) made of a modified polytetrafluoroethylene, having a wall thickness of above 0.5 mm and a length sufficient for ensuring its projection from the stator winding.

MANUFACTURE OF ROTARY DYNAMO-E.ECTRIC MACHINES OR PARTS THEREOF

... 1450501 Making dynamo-electric machines SIEMENS AG 1 July 1974 [29 June 1973] 29147/74 Heading B3A [Also in Division H2] A method of making a dynamo-electric machine comprises making an assembly of a wound stator 1, a housing part 5 constituting an end shield having a circular trough which accommodates the end turns 41 of the winding 4, spacer means, e.g. perforated foil 7, between the end turns and the housing part and a cylindrical member within and coaxial with the stator, introducing a settable material 2 into the assembly which acts as a mould and removing the cylindrical member after the material has set. An outer end shield part 61 also forms part of the assembly and it is secured to the stator 1 together with the end shield 5 by rivets 8. The cylindrical member seals the inner space of the assembly and simultaneously centres the shield 5 and shield part 61. The settable material is a casting resin and is introduced into the assembly in vacuo through apertures in the shield 5 and ...

Improvements in or relating to electric translating devices embodying thermal protective apparatus

... 542,181. Protective cut-out arrangements. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. July 15, 1940, No. 11704. Convention date, July 13, 1939. [Class 38 (v)] A translating device, such as a motor having a running winding 34 and a starting winding 32 which is controlled by a centrifugal switch 33, is controlled by a thermostat 20 in the form of a bimetal disc mounted on the end bell 14 by means of a plate 26, and subject to a single-loop, bare-wire, radiant heater 24 and to a heat-storage coil 22 of insulated wire non-inductively wound into a compact mass and thermally insulated from the end bell by a disc 30 of felt-like material or "Micarta" (Registered Trade Mark). In Fig. 3 the coil 22 is in the starting-winding circuit so as to cause the thermostat 20 to quickly open the circuit 8 in the event of overloaded starting conditions or stalled rotor, the mass of the coil being such that the circuit is held open for a prolonged period of, say, three to five minutes. In modifications, however, ...

ROTARY DEVICE HAVING A THERMAL OVERLOAD DETECTOR

... 1353040 Detecting thermal overloads in electric machines UNELEC 1 Oct 1971 [2 Oct 1970] 45922/71 Headings H2A and H2K [Also in Divisions H3 and G4] A rotary device, such as a rotatable electrical machine, e.g. electric motor, incorporates a thermal overload detector which comprises a magnetic member 5 carried on a rotatable part of the device and whose magnetic permeability varies with temperature and whose Curie temperature equals the overload temperature to be detected, a stationary magnetic bridge 6 which incorporates two polepieces 10, 11 separated by an air gap 12, and a magnetic field detector 13 disposed in the air gap, the member and bridge being so arranged that during each rotational cycle of the rotatable part the member 5 consecutively passes one polepiece 10, the air gap 12, and the other polepiece 11. The member 5 may be carried by a coil head of a wire-wound rotor, a synchronous motor inductor, a D.C. motor commutator segment or, as shown, the short-circuiting ring 4 of a ...

Diagnosis of stator thermal anomalies in an electrical machine

Compressor with support for a thermal protective device.

A sealed compressor, in particular for use in domestic refrigerators, comprises a thermal protective device (9A, 9B, Figs 2 and 3), a starter device and a support element 1 for those two devices. The support element 1 includes a ring 2 for accommodating the thermal protective device (9A, 9B) and is such as to be able to accommodate either a conventional thermal protective device (98) of cylindrical shape or a protective device (9A) of reduced shape which is inserted with sides thereof in protuberant parts 5, 6 of the accommodating ring 2. ...

A brush holder for an electric motor

Electric motor

ELECTRIC MOTOR

Drive apparatus for a cycle

Drive apparatus (2) for a cycle (4), which drive apparatus (2) comprises a frame (6), a motor (8), a first pulley (10) which is driven by the motor (8), a second pulley (12), and an endless belt (14) which passes around the two pulleys (10, 12) and which is driven by the first pulley (10), the drive apparatus (2) being such that during use the belt (14) as in driving engagement with a tire (16) of a wheel (18) of the cycle (4), and the drive apparatus (2) being such that during use the first pulley (10) does not engage the tire (16).

HOUSEHOLD APPLIANCE WITH PUMP OPERATION MONITORING MEANS

Electrical devices

... 1,044,182. Insulating terminals. TEXAS INSTRUMENTS Inc. April 2, 1963 [April 9, 1962], No. 13082/63. Heading H2E. . Connections to an electrical device, such as a thermally responsive switch 10, are partially enclosed by a cap 60 or tube and the space around the connections is filled with a coldsetting resin 96. The switch terminals, to which leads 90, 92 are welded, comprise a rod 34 and a flange 38 in which the rod 34 is mounted by means of a glass seal 36, and the cap, which is moulded of thermo-setting resin, fits on to the flange 38. A groove 99 facilitates tying the switch in place, e.g. in a motor winding. The mould may alternatively be formed by a tubular sleeve of heat-shrinkable thermoplastic shrunk into position around both the connections and the switch, Fig. 12 (not shown), or by a tubular sleeve built up from layers of heat shrinkable thermo-setting resin, Fig. 16 (not shown).

A stator for an electric motor or generator

"An electrical connection system for recifiers"

An electrical connection system for alternating current rectifiers, particularly for use in alternating-current bridge-type rectifiers for motor vehicle generators, in which a portion of an electrical conductor embedded in a circuit board is cooled to a lesser extent than the remainder of the electrical conductor. The lesser cooled portion may have a smaller cross-sectional area than do the remaining portions of the electrical conductor. In the case of an overload on the connection system, the lesser cooled and/or smaller cross-section portion melts through.

Improvements in and relating to electric motor protective systems and apparatus therefor

... 516,597. Protective cut-out arrangement; thermal switches. BRITISH THOMSON-HOUSTON CO., Ltd. June 30, 1938, No. 19445. Convention date, July 1, 1937. [Class 38 (v)] A motor having a winding and an enclosing casing in which the entrapped air is agitated by operation of the motor, has a thermostat responsive to winding-current under all operating- conditions and control means operated by the thermostat. An armature is secured to the movable part of the thermostat and a blockshaped permanent magnet with both poles on one face is mounted adjacent the armature for snap-action of the thermostat. The device is mounted near the stator winding and means are provided for access of the entrapped air to the thermostat whereby the device is jointly responsive to the winding-current and temperature under both stalled and running conditions so as to reduce the winding-current when the winding attains predetermined maximum temperatures. The device is mounted in a chamber 15 in the end-shield 13 of a small ...

Component monitoring

Component monitoring apparatus 100 is described herein and comprises an input 110 to receive sensor data from a sensor arrangement S1-S4. The sensor data may be representative of a use of a respective component 105 during a monitoring interval. A memory 118 may be provided to store received sensor data and a life parameter associated with the component. An interface 126 may be provided to communicate with a remote device and a power cell 128 may be provided to power the apparatus. The apparatus may be arranged to: store in the memory 118 received sensor data, in response to a trigger, read the sensor data from the data memory and transfer the sensor data to the remote device. Furthermore, in response to receipt of a data packet containing a life parameter associated with the usage of the component 100, store the life parameter to the memory. The component monitor apparatus is permanently attached to the component (at 130) so that the component effectively carries its own life expectancy ...

Thermally responsive electrical control device

... 1,018,422. Temperature responsive actuating elements. TEXAS INSTRUMENT Inc. May 29, 1962 [May 31, 1961], No. 20680/62. Heading G1D. [Also in Division H2] A snap-acting bimetallic disc 122 is connected conductively and securely, as by welding, to the light portion 100 of a U-shaped terminal member 90 and is disposed between the legs 96, 98, of the member by which the sub-assembly is mounted on a supporting base 70. An adjusting screw 132 acts as a stop and provides for calibration of the bimetallic disc 122. A manually resettable lever 140 has an insulating tongue portion 146 which is interposed between switch contacts 84, 126, when disc 122 snaps open the contacts, a U-shaped spring biasing the lever 140 towards this position (Figs. 5, 6, not shown). The omission of this spring and the lever 140 renders the switch 30 automatically resettable. The resetting mechanism is claimed in Specification 1,019,871.

Brushless motor and method for manufacturing same

An arrangement for preventing excessive heating in a winding of an electrical machine

... 904,615. Protective devices for dynamoelectric machines. SIEMENS-SCHUCKERTWERKE A.G. Feb. 17, 1961 [Feb. 19, 1960], No. 6031/61. Class 35. In the winding of an electrical machine, such as a single-phase motor, is located a heatsensitive, semi-conductor device whose resistance rapidly increases with temperature above the Curie temperature, thus reducing the current in the winding if it becomes overheated. The semi-conductor, which may be barium.titanate, barium-strontium titanate, barium-lead titanate, can be connected in series with the main winding or with an auxiliary phase winding of the motor.

Electric terminal assembly of a drive unit for use in a mining machine

Improvements in or relating to thermal supervisory apparatus

... 767,383. Temperature indicators for dynamoelectric machines. SIEMENS-SCHUCKERTWERKE AKT.-GES. March 17, 1955 [March 17, 1954], No. 7885/55. Class 35. Thermally-sensitive elements 7, 8 are housed in a tube 1 embedded in the windings of a dynamo-electric machine and closed by a cover 2.

Electric machine, rotor and stator

A stator core 110 segment comprising a body 140 defining a segment 120 of an annular ring and a pole tooth 150 projecting radially from the body, the tooth comprising a pair of tips 160a, 160b, which have an initial configuration in which they extend longitudinally with respect to the tooth and an assembled configuration in which they extend transversely to provide a flange at the pole tooth end. Each tooth tip comprises a web contiguous with the tooth and a head at the distal end of the web and the tooth has a recess in a shoulder proximal to each tip, the recess defining a seat to receiving and aligning a portion of the head when the tip is in assembled. The head may comprise a first portion proximal to the web and a second portion distal to the web, where when assembled the first portion engages the seat and the second portion extends transversely beyond the tooth. The first portion of the head and the seat may have complementary profiles which resiliently engage, where the profiles ...

Monitoring internal parameters of electrical motorsystems.

ELECTRIC MOTOR WITH UNDERVOLTAGE RELEASE

ELECTRIC MOTOR

ELEKTROMOTOR MIT UNTERSPANNUNGSAUSLOESUNG

ARRANGEMENT OF A STARTER AND SAFETY DIVICE - CONSTRUCTION UNIT FOR AN ELECTRIC MOTOR COMPRESSOR - UNIT

TEMPERATURE RISE PROTECTION FOR ELECTRICAL WINDINGS, IN PARTICULAR FOR INDUCTION COILS OF FLUORESCENT LAMPS

Verschlusskeil

Disclosed is a slot wedge (1) for securing windings arranged in coil slots of motors or generators; on its bottom side (4) facing the winding (2), the slot wedge (1) has a wavy structure in at least some sections in the longitudinal direction.

ELECTRIC MOTOR, IN PARTICULAR CANNED MOTOR FOR A CENTRIFUGAL PUMP OR AN EXHAUST.

PHOTOGRAPH HOUSING FOR A THERMAL PROTECTIVE SWITCH.

DEVICE FOR THE CONTROLLING OF A BRUSHING ROM TURNING PURITY OF AN ELECTRICAL MACHINE.

Groove thermometer for electrical machines

Mechanism of monitoring unit of electric rotating machinery and monitoring method of electric rotating machinery

Apparatus, systems, and methods for monitoring elevated temperatures in rotating couplings and drives

A system to continuously and redundantly monitor a magnetic drive system includes temperature sensors coupled to the magnetic drive system. The temperature sensors are coupled to a transmitter, which generates output signals representing the temperatures of the temperature sensors. The system includes a transreceiver and a controller, where the transreceiver is coupled to the transmitter and configured to receive the output signals of the transmitter. The controller is communicatively coupled to the transreceiver and the magnetic drive system and is configured to control operation of the magnetic drive system based on one or more signals received from the transreceiver.

Predicting motor failure based on relationship of motor pair characteristics

A system and method of predicting motor failure based on relationships of motor pair characteristics, such as temperatures. A motor pair detection module receives temperatures for each motor of a motor pair over a predetermined window. The motor pair detection module determines whether at least one of the temperatures of the first motor and the second motor exceeds a temperature threshold during the predetermined time window. The motor pair detection module further determines whether the temperature of the first motor differed from the temperature of the second motor by at least a difference threshold for at least a percentage threshold of the predetermined time window. Based on the determinations, the motor pair temperature outputs an alarm signal to indicate a potential impending failure of one of the motors of the motor pair. 5137765_1 (GHMatters) P96316.AU 21/02/14 ...

Predicting motor failure based on relationship of motor pair characteristics

A method of predicting motor failure, the method comprising: receiving, by a controller, a parameter of a first motor on a mining machine from a first parameter sensor on a mining machine; receiving, by the controller, a parameter of a second motor on the mining machine from a second parameter sensor on the mining machine; and outputting an alarm signal, by the controller, upon determining that at least one selected from the group consisting of the parameter of the first motor and the parameter of the second motor exceeds a parameter threshold, and determining that the parameter of the first motor differed from the parameter of the second motor by at least a difference threshold for a predetermined amount of time. 9940920_1 (GHMatters) P96316.AU.1 2/02/18 From Temp.I Sensors or IAlarm Module Alarm Temp. Data 325 330 . Temp. Diff. Fil 10 Module Temp. M Motor Failure Data 305 Prediction Module Temp- N 320 Threshold Module Motor Pair Detection (MPD) Module 300 Fig. 4 Temp. Threshold TuTrueL ...

SLOT THERMOMETER FOR ELECTRICAL MACHINES

ELECTRIC DRIVE FOR VEHICLE WINDOWS OR ROOF PANEL

AN ELECTRIC MOTOR-SPEED REDUCER UNIT, IN PARTICULAR FOR MOVING MOVABLE ELEMENTS OF AN AUTOMOBILE VEHICLE This motor-speed reducer unit comprises a small electric motor (4) which is normally incapable of effecting the desired operational cycle and which has a converted armature winding, a resistance (5) exterior to the motor and in series with the armature winding, and a speed reducer (7). A judicious choice of the winding, of the exterior resistance and of the ratio of the speed reducer permits the obtainment of the required performances without excessive heating of the motor with a great saving in weight and overall size.

SIGNAL TRANSMITTING SYSTEM FOR ROTATING APPARATUS

THERMALLY PROTECTABLE MULTISPEED MOTOR

CONTROL APPARATUS FOR TWO SPEED REFRIGERANT COMPRESSOR

INTEGRATED MOTOR-PUMP UNIT

Dans ce groupe motopompe, comprenant un impulseur (1) entouré d'une volute (2) et monté sur l'arbre (3) de sortie d'un moteur (4) électrique entouré d'une carcasse (5) fermée du côté opposé à l'impulseur (1) par un couvercle (6), une rehausse (7) est interposée entre le couvercle (6) et la carcasse (5) et un capteur (11) d'une propriété de l'impulseur (1) est logé dans la rehausse (7).

THERMAL FUSE PROTECTION OF A FORM COIL GENERATOR OF A WIND POWER PLANT

The invention relates to a generator (300) of a gearless wind power plant, having a rotor and a stator, wherein at least the rotor or the stator has a safety fuse wire (310), for recognizing a local temperature increase, and wherein the safety fuse wire (310) has an electrically conductive material and the electrically conductive material melts upon reaching a predetermined temperature and causes an interruption of the electrical conductor as a result, in order to thereby recognize the local temperature increase.

Dispositif de protection d'une machine électrique.

Vorrichtung zur Vermeidung der Überlastung von Motoren in elektromotorisch betriebenen Handwerkzeugen

Vorrichtung zur Vermeidung der Überlastung von Motoren in elektromotorisch betriebenen Handwerkzeugen oder -maschinen

Verfahren zum Einbringen von einschiebbaren Thermofühlern in Wicklungen elektrischer Apparate und Maschinen

Einrichtung an einem Elektromotor zum Schutze desselben mit mindestens zwei getrennten Wicklungen verschiedener Polzahl

Thermischer Überlastungsschutz in elektrischen Wicklungen

Schutzvorrichtung mit Wärmefühlern für elektrische Maschinen mit Schleifringen und/oder Kommutator

Schutzvorrichtung für elektrische Maschinen, insbesondere einphasig gespeiste Kleinmotoren

Dispositivo di protezione termica dei motori elettrici

Leckindikator in einer flüssigkeitsgekühlten Maschine

Drehstrommotor mit Überlastungssicherung

Thermofühleranordnung für Überlastungsschutz in einer Hochspannungswicklung

Elektromotor in einer gekapselten Kältemaschine

Nutthermometer für elektrische Maschinen

Ubertemperatursicherung für eine elektrische Wicklung, insbesondere für eine Drosselspule einer Leuchtstofflampe

Dispositif pour la protection des mécanismes d'une machine comportant un moteur électrique

Anordnung zur Temperaturüberwachung von beweglichen Maschinenteilen

Elektromotor mit Hilfswicklung

Ubertemperaturschutzeinrichtung für die Wicklung eines Wechselstrom-Motors

Elektrische Anordnung zur Temperaturüberwachung in Geräten

Vibrator mit im Vibratorgehäuse untergebrachtem elektrischem Antriebsmotor

Arrangement having an electric machine and method for operating an electric machine

The invention relates to a method and arrangement having an electric machine, comprising a stator ( 4 ) and a rotor ( 1 ) and an infrared temperature sensor, wherein the detection field of the infrared temperature sensor is directed at an outer surface of the rotor ( 1 ). The infrared temperature sensor is a thermopile ( 6 ) for radiometrically contactlessly detecting a temperature of the rotor ( 1 ), the thermopile being arranged in a slot of the stator ( 4 ) and being compatible with standard slot-sealing-wedge components of the electric machine with regard to assembly, and thus enables the operational monitoring of the thermal state of an electric machine in a novel manner, such that adapted power states can be achieved.

Hermetic electric compressor

An object is to provide a hermetic electric compressor that can simplify the installation structure of an internal protector and improve the ease-of-assembly thereof. In a hermetic electric compressor having a compressor and an electric motor ( 10 ) built into a sealed housing ( 2 ), the electric motor ( 10 ) includes a stator ( 8 ) to which plastic insulating bobbins ( 30 ) having flanges ( 30 B, 30 C) on an inner and outer circumferences of a plurality of tooth parts of a stator core are fitted and around which a stator winding wire ( 8 A) is wound in concentrated winding around the plastic insulating bobbins ( 30 ), and an internal protector ( 29 ) for electric-motor protection is latched between the inner and outer circumferential flanges ( 30 B, 30 C) of the plastic insulating bobbins ( 30 ) by being urged against the stator winding wire ( 8 A).

Method and system for detecting faults in a brushless exciter

A method of operating an electrical machine is provided. The method includes the steps of providing a brushless excitation system including a diode rectifier having at least one diode, sensing heat energy generated by at least one resistor connected in parallel with the at least one diode, wirelessly transmitting a signal representative of the heat energy, detecting a deviation of generated heat energy from the at least one resistor, and generating a signal indicating an error if the deviation in generated heat energy exceeds a predetermined threshold.

Monitoring fiber for a machine and method of installation

An electric machine assembly and a method of installing an electric machine assembly, the electric machine including a downhole electric machine; and a fiber operatively arranged at least partially through a housing of the electric machine for sensing at least one parameter of the electric machine assembly.

Rotary electric machine

A rotary electric machine includes: a coil conductor that is fitted to a core of the rotary electric machine to form a coil; a neutral line connected to a neutral point of the coil; and a temperature sensor, on which the neutral line is wound to be in contact therewith, and that detects a temperature of the neutral line, wherein the neutral line is, in a region thereof that is in contact with the temperature sensor, equal in cross-sectional area to the coil conductor.

Motor

A motor is provided which can detect a rotor temperature with high precision with a simple configuration not taking an influence on a temperature caused by circulation of a cooling oil into account. In a motor including a rotor, a stator arranged around the rotor, and a temperature sensor, the rotor includes an oil reservoir unit that reserves an oil on a rotating shaft line in an interior thereof, and the temperature sensor detects a temperature of the oil reserved in the oil reservoir unit.

Remote Rotor Parameter Sensor for Electric Drives

A rotor parameter sensor can be used for electric drives. A rotor of an electric engine or motor is monitored by a sensor sensing one or more physical observables or operation parameters. Furthermore, a method and system can be used for monitoring an electric engine or motor for use in electric or hybrid vehicles.

DRIVE DEVICE FOR VEHICLES

An electric motor includes a housing, a stator, and a rotor. The stator is composed of a stator core and a stator coil. The stator coil is composed of a plurality of individual coils provided to teeth of the stator core. The housing has lubricating oil supply portion, through which the lubricating oil is supplied onto coil ends of upper individual coils. A temperature detector for detecting the temperature of the stator coil is disposed at a position lower than an axis of a rotor and higher than an oil level of the lubricating oil accumulated in the bottom portion of the housing. 1. A vehicle drive device comprising: a wheel bearing configured to support a wheel; a horizontally-mounted electric motor configured to rotate a rotating ring of the wheel bearing; and an oil supply mechanism configured to cool the electric motor with lubricating oil , whereinthe electric motor includes a housing, a stator provided inside the housing, and a rotor configured to be rotatable with respect to the stator, the stator is composed of a stator core and a stator coil, the stator core has a plurality of teeth arranged in a circumferential direction around an axis of the rotor, and the stator coil is composed of a plurality of individual coils provided on the respective teeth,the oil supply mechanism has a lubricating oil supply portion configured to supply lubricating oil onto coil ends of upper individual coils among the plurality of individual coils, and a lower portion of the stator is immersed in the lubricating oil accumulated in a bottom portion of the housing, anda temperature detector configured to detect a temperature of the stator coil is disposed at a position that is lower than the axis of the rotor and higher than an oil level of the lubricating oil accumulated in the bottom portion of the housing.2. The vehicle drive device as claimed in claim 1 , wherein the temperature detector is located within a range of a gap between individual coils adjacent in the circumferential ...

ELECTRICAL MACHINE HAVING AN INTEGRATED TEMPERATURE SENSOR AND ROTOR CONDITION CAPTURE SENSOR

An electric machine for a drive of a motor vehicle, having a stator, a rotor which can be rotated relative to the stator, a temperature sensor arranged and designed to capture a temperature of the stator and a rotor condition capture sensor which is arranged and designed to capture a rotational speed and/or rotational position of the rotor accommodated in a stator-fixed manner. The temperature sensor and the rotor condition capture sensor are implemented as subsystems of a common sensor system, wherein a first subsystem having the temperature sensor has an elastic thermally conductive contact element connected to the temperature sensor, which contact element is permanently fitted to a contact region of the stator. A hybrid module having this electric machine is also provided. 1. An electric machine for a drive of a motor vehicle , the electric machine comprising:a stator;a rotor which is rotatable relative to the stator;a temperature sensor arranged and configured to capture a temperature of the stator;a rotor condition capture sensor arranged and configured to capture at least one of a rotational speed or rotational position of the rotor accommodated in a stator-fixed manner;wherein the temperature sensor and the rotor condition capture sensor are configured as subsystems of a common sensor system, a first one of the subsystems having the temperature sensor includes an elastic, thermally conductive contact element connected to the temperature sensor, and the contact element is permanently fitted to a contact region of the stator.2. The electric machine according to claim 1 , wherein the contact element rests against a radial outside claim 1 , a radial inside claim 1 , a circumferential side or an axial side of a coil winding of the stator or is at least partially arranged within the coil winding.3. The electric machine according to claim 1 , wherein the contact element is pressed directly against a wire of a coil winding of the stator.4. The electric machine ...

METHOD AND A SYSTEM FOR RELIABLY STARTING A TURBINE ENGINE

There is provided a starting system for reliably starting a turbine engine, the system including first and second circuits connected in parallel and arranged between a battery of the engine and a DC starter of the engine, the first circuit including a DC-DC converter connected in series with a first switch and the second circuit including a second switch; a sensor configured to sense a speed of rotation of a compressor of the engine; a sensor configured to sense a temperature at an inlet to a free turbine of the engine; and a control circuit configured to control the first and second switches as a function of information supplied by the sensor configured to sense the speed of rotation of the compressor and by the sensor configured to sense the inlet temperature of the free turbine. 116-. (canceled)17: A starting system for reliably starting a turbine engine comprising a storage battery , a DC starter , an electronic regulation computer , a transmission gearbox , starting accessories for managing the distribution of fuel to injectors and for igniting the fuel during a starting stage , a gas generator itself comprising a compressor , a combustion chamber , and a high pressure turbine , together with a free turbine , the system comprising:first and second circuits connected in parallel and arranged between said storage battery and said DC starter, wherein the first circuit comprises a DC-DC converter connected in series with a first switch and the second circuit comprises a second switch;at least one sensor configured to sense a speed of rotation of the compressor;a sensor configured to sense a temperature at an inlet to the free turbine; anda control circuit configured to control the first and second switches as a function of information supplied by the at least one sensor configured to sense the speed of rotation of the compressor and by the sensor configured to sense the inlet temperature of the free turbine.18: The starting system according to claim 17 , further ...

System and method for controlling motor

Provided are a system for controlling a motor and a method thereof. The system includes: a data storage unit in which data relating to a thermal equivalent circuit of the motor is stored; a temperature measuring unit which measures a temperature of a cooling medium which enters a cooling flow path portion; a rotation speed measuring unit which measures a rotation speed of a rotor; a driving electric current measuring unit which measures a driving electric current of the motor; a permanent magnet temperature estimating unit which estimates a temperature of the permanent magnet portion of the rotor; and a driving controller controls driving of the motor.

MOTOR THERMAL PROTECTION DEVICE AND OPERATION METHOD THEREOF

It is disclosed a motor thermal protection device and operation method thereof. The motor thermal protection device utilizes a power supply of a motor for power supplying and comprises: a capacitor timing circuit, configured to time after the motor is powered off; a power-off time determining unit, configured to perform a reading operation of reading an output voltage of the capacitor timing circuit after the motor is powered on, and determine a power-off time from when the motor is powered off to when the motor is powered on according to the output voltage; and a heat accumulation calculating unit, configured to calculate a remaining heat accumulation when the motor is powered on according to the power-off time and a heat accumulation when the motor is powered off. 1. A motor thermal protection device which utilizes a power supply of a motor for power supplying , the motor thermal protection device comprises:a capacitor timing circuit, configured to time after the motor is powered off;a power-off time determining unit, configured to perform a reading operation of reading an output voltage of the capacitor timing circuit after the motor is powered on, and determine a power-off time from when the motor is powered off to when the motor is powered on according to the output voltage; anda heat accumulation calculating unit, configured to calculate a remaining heat accumulation when the motor is powered on according to the power-off time and a heat accumulation when the motor is powered off.2. The motor thermal protection device of claim 1 , whereinthe capacitor timing circuit comprises a power supply unit, a capacitor, a first resistor, a semiconductor switch module, a charging terminal, and an output terminal;the power supply unit is powered by a power supply of the motor and outputs a voltage to be applied to a control terminal of the semiconductor switch module, after the motor is powered off, the power supply unit stops outputting the output voltage to be applied to ...

Outboard motor

An outboard motor includes an engine, a power generator including a rotor and a stator, a convertor, and an engine cover configured to cover the engine and the power generator. The rotor includes a permanent magnet.

MOTOR CONTROL DEVICE FOR ESTIMATING TEMPERATURE OF WINDINGS, AND METHOD FOR CALCULATING ALLOWABLE DUTY CYCLE TIME FOR MACHINE

A motor control device according to this invention includes a correction unit which calculates a correction coefficient for correcting the temperature of windings, based on the result of a comparison between a winding estimated temperature rise profile representing the temperature of the windings estimated by a winding temperature estimation unit and a winding actual temperature rise profile representing the temperature of the windings measured by a temperature sensor, when a motor as attached to a machine is rotated at a predetermined rotational speed, to match the winding estimated temperature rise profile with the winding actual temperature rise profile, and corrects a temperature rise estimation arithmetic expression using the correction coefficient. 1. A motor control device for controlling a motor which actuates a machine , the device comprising:a winding temperature estimation unit configured to estimate a temperature of a winding of the motor in accordance with a temperature rise estimation arithmetic expression for calculating the temperature of the winding using a current value applied to the winding;a temperature sensor mounted on the winding; anda correction unit configured to calculate a correction coefficient for correcting the temperature of the winding, based on a result of a comparison between a winding estimated temperature rise profile representing the temperature of the winding estimated by the winding temperature estimation unit and a winding actual temperature rise profile representing the temperature of the winding measured by the temperature sensor, when the motor as attached to the machine is rotated at a predetermined rotational speed, to match the winding estimated temperature rise profile with the winding actual temperature rise profile, and correct the temperature rise estimation arithmetic expression using the correction coefficient.2. The motor control device according to claim 1 , wherein the correction unit corrects the temperature ...

BUS BAR UNIT AND MOTOR INCLUDING THE SAME

A phase bus bar unit includes a bus bar holder that is an insulator and supports of bus bars for phases of a motor rotating about a central axis, and a bus bar cover which is an insulator, covers at least one side of each of the bus bars in an axial direction, and is fixed to the bus bar holder. Each of the bus bars includes a base, extensions each extending outward in a radial direction from the base, and a terminal installed on an outer end of each of the extensions in the radial direction. The bus bar cover includes protrusions each protruding to another side in the axial direction, and the protrusions are in contact with each of the bus bars while at least one of the protrusions is in contact with the base at or adjacent to the extension. 113-. (canceled)14. A bus bar unit comprising:a bus bar holder, which is an insulator and supports a plurality of bus bars for phases of a motor rotating about a central axis; anda bus bar cover, which is an insulator, covers at least one side of each of the bus bars in an axial direction, and is fixed to the bus bar holder; whereineach of the bus bars includes a base, a plurality of extensions each extending outward in a radial direction from the base, and a terminal installed on an outer end of each of the extension in the radial direction;the bus bar cover includes a plurality of protrusions each protruding to another side in the axial direction; andthe plurality of protrusions are in contact with each of the bus bars while at least one of the protrusions is in contact with the base at or adjacent to the extension.15. The bus bar unit of claim 14 , whereinthe base of the plurality of bus bars is disposed in series in the radial direction;the bus bar holder is provided with a partition wall to separate the bus bars adjacent to each other in the radial direction from each other;a first notch notched in the axial direction is provided on an end of one side of the partition wall in the axial direction; anda portion of the ...

MOTOR WINDING TEMPERATURE ESTIMATOR

Examples of the present disclosure relate to a device, method, and medium storing instructions for execution by a processor for estimating motor winding temperature. In an example, a device for estimating motor winding temperature includes a motor shaft and a motor winding. The device may include a current sense resistor to detect the current passing through a common wiring. The device may include a digital to analog converter to convert an input voltage to an analog signal for comparison to the voltage and to generate a differential voltage using the signals received from the current sense resistor and an initial voltage supplied to the motor winding. The device may include a processor to use the differential voltage and a current input value to calculate a resistance of the motor winding from comparison to a temperature conversion curve. 1. A device for estimating motor winding temperature:a motor shaft;a motor winding comprising a first coil end and a second coil end where electrical current from the first coil end and the second coil end pass through a common wiring in response to activation of at least one of the first coil end or the second coil end to move the motor shaft;a current sense resistor to measure a differential voltage through the common wiring;an analog to digital converter to convert the output signal of the current sense resistor for comparison to the voltage and to generate a differential voltage using the signals received from the current sense resistor and an initial voltage supplied to the motor winding; anda processor to use the differential voltage and a current input value to calculate a resistance of the motor winding, the processor to generate an estimated motor winding temperature from a comparison of the resistance of the motor winding to a temperature conversion curve.2. The device of claim 1 , comprising an over-temperature condition shutdown switch to stop current from reaching the motor winding in response to a detection that the ...

Energy transfer circuit

An apparatus for treating a respiratory disorder in a patient includes a power supply, a first power supply circuit coupled to the power supply, a pressure generator to generate a flow of air, a transducer to generate a flow signal representing a property of the flow of air, and motor power supply circuitry. The motor power supply circuitry includes: a motor controller to control operation of a motor in the pressure generator based on the flow signal; one or more storage elements to store energy generated by motor deceleration; an energy dissipation circuit to dissipate a portion the energy generated by the deceleration of the motor; and an energy transfer circuit to couple the one or more storage elements to the first power supply circuit and transfer the energy generated by motor deceleration and/or the energy stored by the one or more storage elements to the first power supply circuit.

TEMPERATURE SENSOR

To provide a temperature sensor that can be attached to or removed from a neutral line without skilled technique, a temperature sensor is attached to a rectangular coil and detects temperature of the coil. The temperature sensor includes: a sensor holder extending from front end side toward back end side; a sensor body that is held by the sensor holder to locate a thermosensitive device on the front end side and from which lead wires are drawn toward the back end side, the lead wires being electrically connected to the thermosensitive device; and a clip that is fixed to the sensor holder and presses the coil against the sensor body by elastic force. 1. A temperature sensor that is attached to a rectangular electric wire and detects temperature of the electric wire , the temperature sensor comprising:a sensor holder extending from front end side toward back end side;a sensor body that is held by the sensor holder to locate a thermosensitive device on the front end side and from which lead wires are drawn toward the back end side, the lead wires being electrically connected to the thermosensitive device; anda clip that is fixed to the sensor holder and presses the electric wire against the sensor body by elastic force.2. The temperature sensor according to claim 1 , wherein the clip is fixed on the front end side of the sensor holder claim 1 , and presses claim 1 , by the elastic force claim 1 , the electric wire toward a region including a position of the sensor body at which the thermosensitive device is provided.3. The temperature sensor according to claim 1 , whereinthe clip is made of a metal plate that is bent in a U-shape,the clip includes a fixing arm, a spring part, and a holding arm, the fixing part being integrally fixed to the sensor holder and projecting in a cantilever shape to outside of the sensor holder in a width direction, the spring part being continuous with the fixing arm, and the holding arm being continuous with the spring part and facing the ...

ROTATING ELECTRIC MACHINE

A rotating electric machine with a stator unit having a coil wound therearound includes a busbar unit assembled with the stator unit and having a winding end part of the coil connected thereto, and a thermistor for detecting a temperature of the coil. The busbar unit includes a fixing portion for pressing and fixing the thermistor to the coil. 1. A rotating electric machine with a stator unit having a coil wound therearound , comprising:a wire connection member assembled with the stator unit and having a winding end part of the coil connected thereto; anda temperature detector configured to detect a temperature of the coil, wherein:the wire connection member includes a fixing portion configured to press and fix the temperature detector to the coil.2. The rotating electric machine according to claim 1 , further comprising a heat transfer material interposed between the coil and the temperature detector claim 1 , wherein:the heat transfer material has elasticity.3. The rotating electric machine according to claim 1 , wherein:the fixing portion includes a gripping piece configured to grip a side surface of the temperature detector.4. The rotating electric machine according to claim 3 , wherein:the gripping piece includes a projection that projects toward the side surface of the temperature detector.5. The rotating electric machine according to claim 1 , wherein:the fixing portion is integrally formed on an outer periphery of the wire connection member.6. The rotating electric machine according to claim 1 , wherein:the wire connection member includes a positioning portion configured to be engaged with the stator unit; andthe temperature detector is pressed and fixed at the same time as the wire connection member is engaged with the stator unit. The present invention relates to a rotating electric machine with a stator unit having a coil wound therearound.JP2003-83258A discloses a configuration, in which a temperature detector is fixed to the surface of a coil to detect ...

Power machine tool having an electronically commutated drive motor

In a power machine tool which has an electronically commutated drive motor that has a motor shaft and to which a stator core is assigned that s provided at least sectionally with an insulating body at one axial end, with a printed circuit board being disposed in the area of the insulating body and being provided with at least one rotational-direction sensor and at least one temperature sensor as well as a contact element for the electrical contacting of the at least one rotational-direction sensor and the at least one temperature sensor, the printed circuit board is aligned at least sectionally parallel to the motor shaft, and is disposed on the insulating body in such a way that the at least one rotational-direction sensor faces the motor shaft.

MOTOR CONTROL APPARATUS AND METHOD FOR SECURING INSULATION PERFORMANCE

A motor control apparatus for securing insulation performance includes: a temperature sensor detecting a temperature of a motor; an altitude detection means providing information on an altitude at which the motor is positioned; and a controller including a motor output map having a plurality of groups of map data in which motor output limit rates depending on temperatures of the motor are pre-stored for each preset altitude section, selecting one group of map data corresponding to the information on the altitude provided by the altitude detection means, and determining a motor output limit rate by applying the temperature detected by the temperature sensor to the selected group of map data. 1. A motor control apparatus for securing insulation performance , the motor control apparatus comprising:a temperature sensor configured to detect a temperature of a motor;an altitude detection means configured to provide a current altitude of the motor at which the motor is positioned; anda controller including a motor output map having a plurality of groups of map data in which motor output limit rates depending on temperatures of the motor are pre-stored for each preset altitude section, the controller configured to: select one group of map data, among the plurality of groups of map data, based on the current altitude of the motor provided by the altitude detection means, and determine a motor output limit rate by applying the temperature detected by the temperature sensor to the selected group of map data.2. The motor control apparatus of claim 1 , wherein the altitude detection means is a navigator configured to provide the current altitude of the motor based on a current altitude of a vehicle including the motor through a global positioning system (GPS) signal.3. The motor control apparatus of claim 1 , wherein:the altitude detection means is a navigator having a database in which altitude information depending on latitude information and longitude information is pre- ...

System and method for wirelessly managing electric motors

A system and method for wirelessly communicating with an HVAC motor or other motor in order to manage the motor with regard to, e.g., identifying a suitable replacement for, programming, monitoring and/or diagnosing, and/or tuning or otherwise reprogramming the motor without physically connecting to the motor. A technician uses a software application on a smartphone, tablet, or other portable device to communicate with the motor controller via a wireless communication device incorporated into the motor assembly. The smartphone may receive relevant information, such as identification, programming, or diagnostic information, and process the information or wirelessly transmit the information to a server for processing. Based on the information, the smartphone may transmit programming instructions to the motor controller via the wireless communication device. Further, the wireless communication device may transmit sensor data associated with the motor to allow for monitoring the motor's performance.

Motor driving device and air conditioner

A motor driving device is a device for driving a motor including stator windings, includes: a connection switching unit that is connected to the stator windings, includes circuits including semiconductor switches, and switches connection condition of the stator windings to either of first connection condition and second connection condition different from the first connection condition by setting the semiconductor switches to ON or OFF; and an inverter that supplies AC drive voltages to the stator windings.

MOTOR HAVING FUNCTION OF GENERATING AND FEEDING ELECTRIC POWER AT COIL END PORTION

A motor according to an embodiment of the present invention has a stator including windings wound therein, and a rotor disposed inside the stator. The motor includes an electric circuit unit, and an induction generator coil disposed in the vicinity of a coil end of the winding so as to generate electric power by a change of magnetic flux generated by the winding. The electric circuit unit is driven by the electric power generated and fed by the induction generator coil. 1. A motor having a stator including a winding wound therein and a rotor disposed inside the stator , the motor comprising:an electric circuit unit; andan induction generator coil disposed in the vicinity of a coil end of the winding so as to generate electric power by a change of magnetic flux generated by the winding,wherein the electric circuit unit is driven by the electric power generated and fed by the induction generator coil.2. The motor according to claim 1 , wherein the electric circuit unit is a sensor for measuring at least one of a current flowing through the winding claim 1 , the temperature or vibration of the stator claim 1 , the temperature or vibration of the rotor claim 1 , the humidity inside the motor claim 1 , the temperature or vibration of a bearing for supporting the rotor claim 1 , and the magnetic flux intensity inside the motor.3. The motor according to claim 1 , wherein the electric circuit unit drives at least one of an actuator to remove foreign matter from the inside of the motor claim 1 , an actuator to grease a bearing for supporting the rotor claim 1 , and a mechanism to apply a brake torque to the rotor.4. The motor according to claim 1 , wherein the electric circuit unit has a wireless transceiver function. This application is a new U.S. patent application that claims benefit of JP 2016-141414 filed on Jul. 19, 2016, the content of JP 2016-141414 is incorporated herein by reference.The present invention relates to a motor, and specifically relates to a motor ...

DRIVELINE FOR SUPPLY OF ELECTRICAL ENERGY

A method and a driveline are used for stabilization of an electrical grid. The driveline for an electricity generator includes a controllable power unit, such as a gas motor or a gas turbine. A generator generates electrical power. The generator is connectable to the electrical grid for feeding electrical power into the electrical grid. A torque limiting coupling is arranged in the driveline between the generator and the power unit. To limit the torque, the torque limiting coupling is caused to slip and a limited torque is provided to the generator. 112-. (canceled)13. A driveline for electricity generation , the driveline comprising:a generator connectable to an electrical grid for feeding electrical power into the electrical grid;a controllable power unit for driving said generator; anda torque limiting coupling disposed in the driveline between said generator and said power unit.14. The driveline according to claim 13 , further comprising a gearbox arranged between said power unit and said torque limiting coupling.15. The driveline according to claim 13 , wherein said torque limiting coupling is configured to limit a torque by slippage of said torque limiting coupling.16. The driveline according to claim 13 , wherein said torque limiting coupling is a frictional coupling and said frictional coupling comprises a cooling device.17. The driveline according to claim 16 , wherein said cooling device comprises a liquid cooling unit.18. The driveline according to claim 16 , wherein said frictional coupling is a multi-disc clutch.19. The driveline according to claim 13 , wherein said torque limiting coupling is a load limiting and disconnecting safety coupling claim 13 , and wherein said load limiting and disconnecting coupling provides a slippage up to a predetermined slippage angle before disconnection.20. The driveline according to claim 19 , wherein the predetermined slippage angle before disconnection is dependent on a rotational speed of an output shaft of said ...

MOTOR CONTROL DEVICE CAPABLE OF MEASURING TEMPERATURE OF ROTOR AND MOTOR PROVIDED THEREWITH

The motor control device of the present invention comprises a sensor gear expansion amount estimation part which estimates the amount of expansion of a sensor gear, a sensor mount expansion amount estimation part which estimates the amount of expansion of a sensor mount, a sensor gear expansion amount correction part which corrects the estimated amount of expansion of the sensor gear, and a rotor temperature estimation part which estimates the temperature of the rotor based on the corrected sensor gear expansion amount of the sensor gear. 1. A motor control device controlling a motor which comprises a sensor gear mounted to a rotor of the motor; a magnetic sensor which detects the presence/absence of each of a plurality of teeth provided successively at predetermined intervals on the outer periphery of the sensor gear as signals; a sensor mount to which the magnetic sensor is mounted; and a temperature detector which detects the temperature of the sensor mount; the motor control device comprises:', 'a sensor gear expansion amount estimation part which estimates the amount of expansion of the sensor gear based on the amount of change in the strength of the output signal of the magnetic sensor;', 'a sensor mount expansion amount estimation part which estimates the amount of expansion of the sensor mount based on the temperature detected by the temperature detector;', 'a sensor gear expansion amount correction part which corrects the estimated expansion of the sensor gear by subtracting the estimated expansion amount of the sensor mount from the estimated expansion amount of the sensor gear; and', 'a rotor temperature estimation part which estimates the temperature of the rotor based on the corrected expansion amount of the sensor gear., 'wherein'}2. The motor control device according to further comprising:a sensor output signal correction part which corrects the strength of the output signal of the magnetic sensor based on the temperature detected by the temperature ...

STANDBY GENERATOR INCLUDING MULTIPLE EXERCISE CYCLES WITH AMBIENT TEMPERATURE CONTROL

A method and system for exercising a standby generator is disclosed. The standby generator can be exercised in at least two different exercise cycles, including an express exercise cycle and an extended exercise cycle. The system and method operates the generator for an express exercise cycle having a first duration when the ambient temperature at or near the standby generator exceeds a minimum threshold temperature. If the ambient temperature does not exceed the minimum threshold temperature, the express exercise cycle does not begin. In addition to the express exercise cycle, the engine of the standby generator is started and run for an extended exercise cycle having a duration that exceeds the duration of the express exercise cycle. The extended exercise cycles are separated by a first interval while the express exercise cycles are separated by a second interval, where the first interval is longer than the second interval. 1. A method of exercising a standby generator , comprising:determining if the standby generator is due for an extended exercise cycle;starting an engine of the standby generator and running the engine for the extended exercise cycle when the standby generator is due for the extended exercise cycle;determining if the standby generator is due for an express exercise cycle;detecting an ambient temperature at or near the standby generator; andstarting the engine of the standby generator and running the engine for the express exercise cycle only when the standby generator is due for the express exercise cycle and the ambient temperature exceeds a minimum threshold temperature.2. The method of wherein a duration of the extended exercise cycle is at least double a duration of the express exercise cycle.3. The method of wherein the extended exercise cycle is scheduled to occur at a first interval and the express exercise cycle is scheduled to occur at a second interval claim 1 , wherein the first interval is longer than the second interval.4. The ...

STATOR

A stator for a rotary electric machine includes a stator core and a stator winding. The stator core has a hollow cylindrical shape and includes slots. The stator winding includes segment conductors held in the slots. The slots extending outward in a radial direction from an inner peripheral surface of the stator core. The slots include first and second slots. The second slot is shallower than the first slot. The segment conductors include a segment conductor including a first rectilinear portion held in the first slot, a second rectilinear portion held in the second slot, and a coupler coupling the first rectilinear portion and the second rectilinear portion to each other. The first rectilinear portion and the second rectilinear portion protrude from an end surface of the stator core. 1. A stator for a rotary electric machine , the stator comprising:a stator core having a hollow cylindrical shape, the stator core including slots; anda stator winding comprising segment conductors held in the slots, wherein a first slot, and', 'a second slot shallower than the first slot, and, 'the slots extending outward in a radial direction from an inner peripheral surface of the stator core comprise'} a first rectilinear portion held in the first slot,', 'a second rectilinear portion held in the second slot, and', 'a coupler coupling the first rectilinear portion and the second rectilinear portion to each other, the first rectilinear portion and the second rectilinear portion protruding from an end surface of the stator core., 'the segment conductors comprise a segment conductor including'}2. The stator according to claim 1 , whereinthe slots include first slot groups each comprising first slots and second slot groups each comprising second slots,the first slot groups and the second slot groups are alternately arranged in a circumferential direction of the stator core,the first slots include the first slot, and the second slots include the second slot, andthe second slots are ...

Permanent-Magnet Synchronous Machine with Automatic Rotor Decoupling in the Winding Short Circuit

A permanent-magnet synchronous machine includes a stator in which a stator winding is arranged, a rotor which can rotate about a rotation axis and in which permanent magnets are arranged, wherein the rotor is connected to a motor shaft via a connecting device which is formed such that it initially connects the rotor to the motor shaft in a rotationally fixed manner, such that a torque which is generated by the interaction of stator winding and permanent magnet is transmitted to the motor shaft, where the connecting device is further configured automatically break the rotationally fixed connection of the rotor in the event of a short circuit of the stator winding, such that a torque that acts on the motor shaft is no longer transmitted to the rotor.

Power Generation Systems

A power generation system is provided that includes an internal combustion engine configured to provide rotational mechanical energy. A generator is configured to receive the rotational mechanical energy and generate electrical power in response to the rotational mechanical energy. A fluid medium is provided to the internal combustion engine and to the generator for removing thermal energy from the internal combustion engine and from the generator. 120-. (canceled)21. A power generation system comprising:a generator;a combination of power applications, each power application connected to a power demand different from another;a logic control can model design capabilities of the respective power applications; anda mode control combines the design capabilities to create a design capability of the power generating system which is different from the design capabilities of the respective power applications.22. The system of wherein the logic control models:a maximum sustainable available power to at least one connected power demand; anda maximum intermittent and instantaneous available power.23. The system of wherein the logic control assesses the durability of respective power applications within the model and indicates the assessment to the power generation system.24. The system of wherein the logic control changes proportions of contributions of the respective power applications to change power available to the respective power demands to another maximum sustainable available power.25. The system of wherein the mode control:receives an indication from at least one of the power applications; andin response to the indication, modifies activation and proportion contributions to the respective power applications.26. The system of further comprising an interface.27. A power generation system comprising:a generator;a logic control;a combination of power applications, each power application connected to a power demand different from another;a thermal system connected to a ...

VEHICLE

A vehicle comprises an electric motor, an electric motor control device which controls electric power to be supplied to the electric motor, an atmospheric pressure detection part which detects atmospheric pressure, and a storage part which stores the number of times that a voltage exceeding a partial discharge inception voltage set according to the atmospheric pressure detected by the atmospheric pressure detection part is input to the electric motor. 1. A vehicle comprising:an electric motor;an electric motor control device which controls electric power to be supplied to the electric motor;an atmospheric pressure detection part which detects atmospheric pressure; anda storage part which stores the number of times that a voltage exceeding a partial discharge inception voltage set according to the atmospheric pressure detected by the atmospheric pressure detection part is input to the electric motor.2. The vehicle according to claim 1 , whereinthe electric motor control device limits a voltage to be supplied to the electric motor if the number of times stored in the storage part exceeds a predetermined number of times.3. The vehicle according to claim 2 , further comprising:a power conversion device which converts the electric power to be supplied to the electric motor, whereinthe electric motor control device limits a boosting voltage output by the power conversion device.4. The vehicle according to claim 1 , further comprising:a temperature detection part which detects temperature, whereinthe partial discharge inception voltage is set based on the atmospheric pressure detected by the atmospheric pressure detection part and the temperature detected by the temperature detection part.5. The vehicle according to claim 4 , whereinthe electric motor includes a stator in which a coil covered with an insulating film is wound and a rotor, andthe temperature detection part detects the temperature of the coil.6. The vehicle according to claim 5 , whereinthe coil includes a ...

ELECTRIC MOTOR

An electric motor includes a yoke having a cylindrical section, two pairs of permanent magnets disposed at an inner circumferential surface of the cylindrical section to oppose each other, and an armature rotatably supported further inside in a radial direction than the permanent magnets, wherein at least a pair of first flat sections opposing each other in the radial direction are formed at the cylindrical section, and the permanent magnets are disposed at positions distant from the first flat sections. 1. An electric motor comprising:a yoke having a cylindrical section about an axial direction;two pairs of permanent magnets fixed to an inner circumferential surface of the cylindrical section and arranged such that magnetic N poles and S poles are alternately disposed in a circumferential direction;an armature rotatably supported about the axial direction further inside in a radial direction than the permanent magnets; andan armature core constituted by a plurality of core plates, which are stacked, each having a core main body fitted and fixed onto the rotary shaft and ten teeth protruding from the core main body outward in the radial direction, and on which a winding is wound between two of the teeth neighboring the circumferential direction,wherein the cylindrical section has first flat sections and transition sections, each of the transition sections being configured to connect two of the first flat sections in the circumferential direction,the permanent magnets are disposed at positions corresponding to the transition sections, respectively, in the circumferential direction,wherein the teeth comprise two tooth groups, each constituted by five deformed teeth neighboring the circumferential direction,the two tooth groups are disposed to be point-symmetrical to each other about the rotary shaft, a first-type deformed tooth formed extending from the core main body and substantially inclined toward an opposite side of the winding direction of the winding with ...

ENCODER CAPABLE OF ERASING MEMORY INFORMATION AND MOTOR SYSTEM INCLUDING THE SAME

An encoder which detects information on the position or the speed of a motor includes memory which stores motor-specific information on the motor to be mounted on the encoder, a mount determination unit which determines whether the encoder has been removed from the motor, and a memory information erasure unit which erases the motor-specific information stored in the memory when the mount determination unit determines that the encoder has been removed from the motor. 1. An encoder which detects information on one of a position and a speed of a motor , the encoder comprising:memory which stores motor-specific information on the motor to be attached to the encoder;a mount determination unit which determines whether the encoder has been removed from the motor; anda memory information erasure unit which erases the motor-specific information stored in the memory when the mount determination unit determines that the encoder has been removed from the motor.2. The encoder according to claim 1 , whereinthe mount determination unit comprises:a connection detection connector which is connected to conducting wires led from a temperature sensor provided in the motor when the encoder is mounted on the motor, and is released from connection to the conducting wires when the encoder is removed from the motor; anda determination processing unit which determines whether connection between the connection detection connector and the conducting wires has been released, andthe determination processing unit determines that the encoder has been removed from the motor when it is determined that the connection between the connection detection connector and the conducting wires has been released.3. A motor system comprising a motor and the encoder claim 2 , according to claim 2 , that detects information on one of a position and a speed of the motor claim 2 ,the motor comprising:a temperature sensor which detects a temperature of the motor; anda motor connector configured to connect conducting ...

CONTROL DEVICE FOR ACTUATOR, ACTUATOR, VALVE DRIVING DEVICE AND CONTROL METHOD FOR ACTUATOR

A position sensor mounted in an actuator includes a magnetic detecting element for detecting the position of a shaft, and a temperature detecting element for detecting intra-sensor temperature which is used for correction of the temperature characteristics of the magnetic detecting element, the magnetic detecting element and the temperature detecting element being built therein. A control device for the actuator acquires both the temperature-corrected position of the shaft and the intra-sensor temperature from the position sensor, and uses them for control of the actuator. 16.-. (canceled)7. A control device for an actuator , the actuator including a shaft , a direct-current motor for causing the shaft to reciprocate in an axial direction , and a position sensor for detecting a position of the shaft , the control device comprising:an acquirer to acquire both the position of the shaft which is temperature-corrected by using intra-sensor temperature detected by a temperature detecting element built in the position sensor, and the intra-sensor temperature; anda controller to control the actuator by using both the temperature-corrected position of the shaft and the intra-sensor temperature which are acquired by the acquirer.8. The control device for the actuator according to claim 7 , further comprising a coil temperature estimator to estimate a temperature of a coil of the direct-current motor claim 7 , anda temperature corrector to correct the temperature of the coil estimated by the coil temperature estimator by using the intra-sensor temperature acquired by the acquirer, andwherein the controller controls the actuator by using both the temperature-corrected position of the shaft acquired by the acquirer, and the temperature corrected by the temperature corrector.9. The control device for the actuator according to claim 7 , further comprising an abnormality determiner to determine that internal temperature of the actuator is abnormal when the intra-sensor temperature ...

SUBMERSIBLE PUMPING APPARATUS, COMPRISING LINEAR ELECTRIC MOTOR AND DOUBLE ACTION PUMP

A submersible pumping apparatus comprises a filtration system (), a gravity gas separator, a head (), a double action pump (), a linear driven electric motor (), a hydro-protector () in the bottom part of the apparatus, and a telemetry system () united in a single housing (). The linear electric motor () comprises a fixed part, a stator (), filled with a dielectric liquid, and a movable part, a slider (), comprising several sections spaced-apart from a stator central axis, mechanically connected to movable parts of the pump (), plungers, one of which is located inside the stator (), the second one is located inside the hydro-protector (), fixed parts of the pump (), cylinders, are arranged as follows: one cylinder is in the central part of the stator (), and the second cylinder is inside the hydro-protector (). 1. A submersible pumping apparatus comprising , in a single housing , a linear electric motor comprising a fixed part in the form of a sealed stator filled with a dielectric liquid comprising a three-phase winding with mounted temperature sensors , and a movable part being slider , wherein the movable part comprises several sections that are spaced apart in a circumferential direction of the stator , configured to reciprocate relative to the stator , and have a mechanical connection with plungers of pumps; one of the pumps is located in the inner cavity of the stator , the second pump is located in the bottom part of the apparatus in the inner cavity of a hydro-protector; pump cylinders comprise hydraulic dampers of the stroke end points; working chambers of the pumps are interconnected and have a connection with an external environment through filters , located on both sides of the stator , and a suction valve , and with an outlet manifold through a check valve and a unit for attachment of an oil-well pumping apparatus to a tubing string; slider guides made of an antifriction material and position sensors are mounted on both sides of the stator; mounted in ...

Motor drive device

A motor drive device in embodiments includes: a motor drive unit that generates a current for driving a motor on a basis of a position command and a position detection value of the motor; a motor-coil ambient-temperature estimation unit that calculates a motor-coil ambient-temperature estimation value by correcting an output value of a temperature sensor provided in a peripheral portion of a motor coil of the motor by using a filter including both a phase-lead characteristic and a low-pass characteristic; a motor-coil increased-temperature estimation unit 6 that calculates a motor-coil increased-temperature estimation value on a basis of the current; and a motor-coil protection unit 9 that limits the current on a basis of the motor-coil ambient-temperature estimation value and the motor-coil increased-temperature estimation value.

ELECTRIC GENERATOR COOLING METHOD

Provided is a method for cooling an electric generator including the steps of: monitoring the temperature of the end winding and of the magnet through said first and second temperature sensors, if the temperatures of the end winding and/or of the magnet rises and reaches a first upper limit, operating the plurality of cooling fans for providing a first cooling power to the electric generator, if, while the first cooling power is provided, the temperature of the magnet reaches the second maximum acceptable temperature and the temperature of the end winding is lower than the first maximum acceptable temperature, operating the plurality of cooling fans for providing a second cooling power to the electric generator, the second cooling power being lower than the first cooling power. 1. A method for cooling an electric generator comprisinga stator including a plurality of windings and at least an end winding associated to a first temperature sensor, the end winding being operatable up to a first maximum acceptable temperature,a rotor including at least a magnet associated to a second temperature sensor, the magnet being operatable up to a second maximum acceptable temperature,one or more cooling fans, which in their active state generate air flows through the electric generator, for cooling the end winding and the magnet,wherein the method includes the steps of:monitoring the temperatures of the end winding and of the magnet through said first and second temperature sensors,if the temperature of the end winding and/or of the magnet rises and reaches a first upper limit, operating the plurality of cooling fans for providing a first cooling power to the electric generator,if, while the first cooling power is provided, the temperature of the magnet reaches the second maximum acceptable temperature and the temperature of the end winding is lower than the first maximum acceptable temperature, operating the plurality of cooling fans for providing a second cooling power to the ...

Connection Between a Winding and a Circuit Board

Various embodiments may include a connection between a winding for an electric machine and a circuit board for an inverter including a connection between the winding and a circuit board for an inverter. A coil end piece of the stator winding extends in a first direction and is welded or connected in a form-fitting manner directly to the circuit board on which a power output stage of the inverter is located. 1. A connection between a winding for an electric machine and a circuit board for an inverter , the connection comprising:a coil end piece of the stator winding extending in a first direction;wherein the coil end piece is welded or connected in a form-fitting manner directly to the circuit board on which a power output stage of the inverter is located.2. The connection as claimed in claim 1 , wherein the circuit board forms a connecting section to which the coil end piece is welded or connected;the connecting section elastic in the first direction.3. The connection as claimed in claim 2 , further comprising a sensor for measuring current claim 2 , the sensor soldered onto the connecting section.4. The connection as claimed in claim 3 , wherein the sensor comprises a copper strip or a shunt.5. The connection as claimed in claim 2 , further comprising a second sensor for measuring temperature claim 2 , the second sensor soldered onto the connecting section.6. The connection as claimed in claim 5 , wherein the further sensor comprises an NTC temperature sensor or an SMD temperature sensor.7. The connection as claimed in claim 4 , wherein the sensor projects beyond the connecting section and is welded to the coil end piece.8. An electric machine comprising:an inverter having a power output stage; and aa stator winding;a circuit board for the inverter; anda connection comprising a coil end piece of the stator winding extending in a first direction;wherein the coil end piece is welded or connected in a form-fitting manner directly to the circuit board on which the ...

ELECTRIC MACHINE THERMAL MANAGEMENT

An electric machine for an electrified vehicle includes a stator and a temperature sensor assembly. The temperature sensor assembly includes an elongated housing having an anchor portion disposed within the windings. The anchor portion includes a screw thread extending about an outer perimeter of the elongated housing, resilient tabs extending from the outer perimeter, and a temperature sensor housed within the anchor portion of the elongated housing. 1. An electric machine for an electrified vehicle , comprising:a stator including windings extending about a central axis; and a screw thread extending about an outer perimeter of the elongated housing,', 'resilient tabs extending from the outer perimeter, and', 'a temperature sensor housed within the anchor portion of the elongated housing., 'a temperature sensor assembly including an elongated housing having an anchor portion disposed within the windings, the anchor portion including'}2. The electric machine of wherein the screw thread is axially disposed between axially spaced apart portions of axially adjacent windings.3. The electric machine of wherein at least one ramp surface of the screw thread is configured to engage at least one of the axially adjacent windings to restrict axial movement of the temperature sensor assembly relative to the at least one axially adjacent winding.4. The electric machine of wherein the ramp surface defines an angle of inclination that corresponds to an angle of inclination of the at least one axially adjacent winding.5. The temperature sensor assembly of wherein the screw thread is a first screw thread claim 2 , and wherein the anchor portion further includes a second screw thread axially spaced along the elongated housing from the first screw thread.6. The temperature sensor assembly of wherein an individual winding extends between the first and second axially spaced screw threads.7. The electric machine of wherein the resilient tabs are radially disposed between radially apart ...

ELECTRIC MACHINE THERMAL MANAGEMENT

A temperature sensor assembly for an electric machine includes an elongated housing including an anchor portion, a temperature sensor disposed in the anchor portion, and a retention body extending from the elongated housing opposite the anchor portion and including spaced apart retention arms. The temperature sensor assembly further includes a wire guide extending from the retention body and extending along a retention arm away from the elongated housing, and a lead wire extending from the temperature sensor and through the wire guide. 1. A temperature sensor assembly for an electric machine , comprising:an elongated housing including an anchor portion;a temperature sensor disposed within the anchor portion;a retention body extending from the elongated housing opposite the anchor portion and including spaced apart retention arms;a wire guide extending from the retention body and extending along a retention arm away from the elongated housing; anda lead wire extending from the temperature sensor and through the wire guide.2. The temperature sensor assembly of wherein the elongated housing is a cylindrical housing that extends along a central axis claim 1 , and wherein the retention arms extend in a direction substantially orthogonal to the central axis.3. The temperature sensor assembly of wherein the retention arms include a first retention arm and a second retention arm spaced from the first retention arm to define a channel therebetween.4. The temperature sensor assembly of wherein the first and second retention arms are resiliently deformable first and second retention arms.5. The temperature sensor assembly of wherein the retention body includes a retention base disposed at an end of the elongated housing opposite the anchor portion claim 4 , and wherein the first and second retention arms extend from the base.6. The temperature sensor assembly of wherein an inner surface of the retention base cooperates with opposing inner surfaces of the first and second ...

ELECTRIC MACHINE THERMAL MANAGEMENT

An electric machine for an electrified vehicle includes a stator including windings and a bridge extending across the windings and in engagement with the windings. The electric machine further includes a temperature sensor assembly secured to the bridge. The temperature sensor assembly includes a retention housing having a base and spaced apart retention arms extending from the base. The temperature sensor assembly further includes a temperature sensor disposed within the retention housing. An adhesive is disposed between the retention housing and the bridge. 1. An electric machine for an electrified vehicle , comprising:a stator including windings and a bridge extending across the windings and in engagement with the windings; a retention housing having a base and spaced apart retention arms extending from the base, and', 'a temperature sensor disposed within the retention housing; and, 'a temperature sensor assembly secured to the bridge and including'}an adhesive disposed between the retention housing and the bridge.2. The electric machine of wherein the adhesive is disposed between the base and a side surface of the bridge.3. The electric machine of wherein the adhesive is disposed between the retention arms and opposing planar surfaces of the bridge.4. The electric machine of wherein the base engages the bridge at a side surface of the bridge claim 1 , and wherein the retention arms engage the bridge at opposing planar surfaces that extend generally orthogonal to the side surface.5. The electric machine of wherein the temperature sensor assembly further includes a wire guide that extends from the base and away from the bridge.6. The electric machine of wherein the retention housing further includes opposing distal end clips extending from distal portions of the retention arms and disposed in engagement with the bridge.7. The electric machine of wherein the base engages the bridge at a side surface of the bridge claim 6 , and wherein the opposing distal end clips ...

TEMPERATURE PREDICTION DEVICE, COMPRESSOR WITH MAGNETIC BEARING MOUNTED THEREON, TEMPERATURE PREDICTION METHOD AND PROGRAM

A temperature prediction device includes an application voltage specifying unit which specifics a voltage value applied to an electromagnetic coil based on a distance from a distance detection unit provided in the electromagnetic coil to an output shaft, a coil current detection unit which detects a current value flowing when a voltage is applied to the electromagnetic coil on the basis of the voltage value specified by the application voltage specifying unit, and a coil temperature estimation unit which estimates a temperature of the electromagnetic coil on the basis of the voltage value specified by the application voltage specifying unit, the current value detected by the coil current detection unit, and a relational expression between the voltage value applied to the electromagnetic coil, the current value flowing when a voltage is applied to the electromagnet coil on the basis of the voltage value applied to the electromagnetic coil, and the temperature of the electromagnetic coil. 1. A temperature prediction device comprising:an application voltage specifying unit configured to specify a voltage value applied to an electromagnetic coil based on a distance from a distance detection unit provided in the electromagnetic coil to an output shaft;a coil current detection unit configured to detect a current value flowing when a voltage is applied to the electromagnetic coil on the basis of the voltage value specified by the application voltage specifying unit;a coil temperature estimation unit configured to estimate a temperature of the electromagnetic coil on the basis of the voltage value specified by the application voltage specifying unit, the current value detected by the coil current detection unit, and a relational expression between the voltage value applied to the electromagnetic coil, the current value flowing to the electromagnetic coil in accordance with the voltage value applied to the electromagnetic coil, and the temperature of the electromagnetic coil ...

COOLING APPARATUS FOR HYBRID VEHICLE

Provided is a cooling apparatus for a hybrid vehicle, the cooling apparatus enabling effective heat exchange between coolant of an engine cooling circuit and refrigerant of an electric-system cooling circuit, and enabling an internal combustion engine and an electric-system device to be cooled and raised in temperature appropriately and speedily. A cooling apparatus 1 for a hybrid vehicle includes: an engine cooling circuit 3 configured to circulate coolant; an electric-system cooling circuit 6 configured to circulate refrigerant; and a heat exchanger 7 configured to perform heat exchange between the coolant and the refrigerant, in which the engine cooling circuit 3 includes: a main circuit 11 enabling continuous circulation of the coolant through the main circuit 11; a radiator circuit 12 configured to circulate the coolant between an internal combustion engine 2 and a radiator 8; a heat-exchange-coolant throughflow portion 13 enabling the coolant to flow through the heat-exchange-coolant throughflow portion 13 and configured to return the coolant having flowed out through the heat exchanger 7 to the main circuit 11; and a three-way valve 14 provided at an upstream end of the heat-exchange-coolant throughflow portion 13, the three-way valve 14 being capable of switching a flow path of the coolant such that the coolant having flowed out of either the internal combustion engine 2 or the radiator 8 is allowed to flow into the heat exchanger 7.

ELECTRICALLY COMMUTATED MOTOR AND FREEZER COMPRISING THE SAME

An ECM motor, including: a motor controller and a motor body. A microprocessor of the motor controller is connected to a first temperature detecting unit and a second temperature detecting unit disposed at different positions outside the ECM motor for detecting temperatures at the different positions. In operation, when the temperature difference between the first temperature T and the second temperature T is smaller than or equal to a preset value T, a first gear at the rotational speed S is selected by the microprocessor and the motor is controlled to run constantly in the first gear at the rotational speed S. When the temperature difference between the first temperature T and the second temperature T is larger than the preset value T, a second rotational speed S is selected by the microprocessor and the motor is controlled to run constantly in the second gear at the rotational speed S 1. An electrically commutated motor , comprising:A) a motor controller, the motor controller comprising a control circuit board comprising a microprocessor, an insulated gate bipolar transistor module, and an operation parameter detecting unit; andB) a motor body, the motor body comprising: a stator assembly, a rotor assembly, and a housing assembly; the stator assembly comprising a stator core and coil windings wound on the stator core; the rotor assembly comprising a rotor core and permanent magnets embedded in the rotor core;whereinthe stator assembly and the rotor assembly are mounted inside the housing assembly; the microprocessor, the insulated gate bipolar transistor module, and the operation parameter detecting unit are arranged on the control circuit board; the operation parameter detecting unit is configured to input operation data of the motor to the microprocessor; an output terminal of the microprocessor is connected to an input terminal of the insulated gate bipolar transistor module, and an output terminal of the insulated gate bipolar transistor module is connected ...

SUPERCHARGING SYSTEM AND INTERNAL COMBUSTION ENGINE

The supercharging system and the internal combustion engine according to the present invention are provided with: a first supercharger (); a second supercharger (); an electric motor () connected to a shaft end of a first compressor (); a generator () connected to a shaft end of a first turbine (); a bypass exhaust pipe (L) that allows exhaust air to bypass the first turbine (); a cooler () that cools the generator (); and a control device () that activates the cooler () when the generator () is driven by exhaust air that has driven the first turbine (). 1. A turbocharging system comprising:a first compressor and a first turbine which are coaxially connected to each other;a second compressor and a second turbine which are coaxially connected to each other;an intake line through which intake air pressurized by the first compressor is supplied to the second compressor;an exhaust line through which exhaust gas which has driven the second turbine is supplied to the first turbine;an electric motor which is connected to a shaft end of the first compressor or the second compressor;a generator which is connected to a shaft end of the first turbine or the second turbine;a bypass exhaust line through which the exhaust gas bypasses the first turbine or the second turbine to which the generator is connected;a cooler which cools the generator; anda control device which operates the cooler when the generator is driven by the exhaust gas which has driven the first turbine or the second turbine.2. The turbocharging system according to claim 1 ,wherein the control device starts an operation of the cooler if the generator reaches a predetermined rotation speed set in advance.3. The turbocharging system according to claim 1 ,wherein an exhaust on-off valve is provided in the bypass exhaust line, and the control device operates the cooler after the exhaust on-off valve is closed.4. The turbocharging system according to claim 1 ,wherein the cooler includes a cooling line through which a ...

Improvements relating to cooling of electrical generators in wind turbines

In a first aspect of the invention there is provided a generator for a wind turbine defining a central generator axis. The generator comprises a stator support frame and an environmental conditioning module removably attached to the stator support frame. The environmental conditioning module comprises a heat exchanger and an air mover supported by a module housing. The environmental conditioning module further comprises fluid interface connections associated with the heat exchanger, the fluid interface connections being releaseably connectable to a fluid supply system associated with the heat exchanger, and electrical interface connections associated with the air blower, the electrical interface connections being releaseably connectable to an electrical supply system associated with the air mover.

STATOR AND ELECTRIC MACHINE

The invention relates to a stator comprising at least one insulating disk, at least one interconnection web, and at least one temperature sensor, where 1. Stator comprising at least one insulation disk , at least one interconnection web , and at least one temperature sensor , wheresaid insulation disk comprises a holding element and said interconnection web comprises an abutment surface for said temperature sensor,said interconnection web and said temperature sensor are arranged and held at least in sections in said holding element andsaid temperature sensor touches said abutment surface at least in part in a planar manner and is pressed against said abutment surface by a spring force or by a clamping force.2. Stator according to claim 1 , wherein said holding element is U-shaped in cross section with a base claim 1 , a first side wall claim 1 , and a second side wall between which said interconnection web and said temperature sensor are arranged.3. Stator according to claim 2 , wherein said interconnection web is supported directly or indirectly on said first side wall claim 2 , and said temperature sensor is supported directly or indirectly on said second side wall.4. Stator according to claim 2 , wherein said base or a side wall comprises a spacer for said temperature sensor.5. Stator according to claim 1 , wherein said second side wall or said interconnection web is resiliently deformable.6. Stator according to claim 5 , wherein the distance in cross section of said holding element between said second side wall and said interconnection web prior to the installation of said temperature sensor is smaller than the width of said temperature sensor.7. Stator according to claim 1 , wherein said second side wall has a retaining profile for said temperature sensor.8. Stator according to claim 1 , wherein at least one spring is arranged between said second side wall and said temperature sensor and presses said temperature sensor against said interconnection web.9. Stator ...

BRAKING OF SINGLE COIL BLDC MOTORS

A method for braking a single coil BLDC motor includes iterating a plurality of times through a sequence of: a braking state which lasts a braking period; and a high impedance state which lasts a cool down period. The current runs through the single coil during the braking state and no current runs through the single coil during the high impedance state. The transiting from the braking state to the high impedance state is done when the motor operates in generator mode.

STATOR FOR ROTARY ELECTRIC MACHINE

A cooling oil is supplied from a cooling pipe to an outer peripheral surface of a mold resin, and a thermistor for measuring a temperature of a coil is provided at one end portion of the mold resin in an axial direction of a stator. A bulge portion for restraining the cooling oil from being supplied to the thermistor is provided bulging outward in the axial direction of the stator in such a manner as to surround at least part of a periphery of the thermistor, at one end portion of the mold resin in the axial direction of the stator. 1. A stator for a rotary electric machine , the stator comprising:a stator core;a coil that is wound around the stator core;a mold portion that includes a coil end portion, the coil end portion projecting outward from the stator core of the coil in an axial direction of the stator, a bulge portion being provided at an end portion of the mold portion in the axial direction of the stator, the mold portion being configured to mold the coil end portion, and a liquid cooling medium being supplied from a cooling medium supply member to an outer peripheral surface of the mold portion; anda temperature sensor that is provided at the end portion of the mold portion in the axial direction of the stator, the temperature sensor being configured to measure a temperature of the coil, whereinthe bulge portion is provided bulging outward in the axial direction of the stator to surround at least part of a periphery of the temperature sensor,the bulge portion is configured to restrain the liquid cooling medium from being supplied to the temperature sensor, andthe bulge portion is molded integrally with the mold portion.2. The stator for the rotary electric machine according to claim 1 , whereinthe temperature sensor includes an element portion at a tip portion of the temperature sensor, andthe element portion is located inside an end surface of the mold portion in the axial direction of the stator.3. The stator for the rotary electric machine according to ...

ROTARY ELECTRIC MACHINE

A detection part of a temperature detection element is mounted to ends of drawn portions which are further protruded in the axial direction than coil end portions. The detection part and the ends of the drawn portions provided with the detection part are covered with a covering member. The ends of the drawn portions provided with the detection part and covered with the covering member are inserted into a through hole of a wall member which is disposed so as to axially face an axial end face of a stator core. In this case, the detection part is located at a position deeper (on the rear side) than a position of a stator core side opening of the through hole. 1. A rotary electric machine comprising:a rotary shaft;a rotor that is fixed to the rotary shaft;a stator core that is disposed such that an inner peripheral surface thereof faces an outer peripheral surface of the rotor in a radial direction via a predetermined clearance;a stator coil that is formed of a conductor and includes coil end portions protruding in an axial direction from an axial end face of the stator core and drawn portions further protruding in an axial direction than the coil end portions;a housing that covers both axial end faces of the stator core, holds the rotor, the coil end portions and the drawn portions, and rotatably supports the rotary shaft;a liquid coolant that is injected into a space defined by the housing and flows into at least a part of a clearance between the outer peripheral surface of the rotor and the inner peripheral surface of the stator core;a temperature detection element that is mounted to ends of the drawn portions such that a detection part is in contact with the ends;a covering member that covers the detection part and the ends of the drawn portions, the end being provided with the detection part; anda wall member that includes a through hole for inserting therethrough the ends of the drawn portions, the end being provided with the detection part and covered with the ...

Systems and methods for sensing parameters on movers in linear motor systems

The subject matter of the disclosed invention relates to systems a methods for applying a sensor to linear motor systems. In various embodiments, the disclosed method relates to providing closed loop control on a mover with or without a payload by detecting parameters of the mover, payload, or both.

SYNCHRONOUS MACHINE PROVIDED WITH AN ANGULAR POSITION SENSOR

The invention relates to a synchronous machine () including a stator () and a rotor (). Said machine is provided with at least one sensor () of the angular position of the rotor () and is characterized in that the stator () includes a winding provided such as to be supplied with polyphase current by an electronic power device. The rotor (), which includes permanent magnets (), is provided such as to rotate about the stator (). The angular position sensor () extends away from the rotor () and is in alignment with the latter at the permanent magnets (). The angular position sensor () includes at least two sensors () for measuring magnetic induction and are provided for detecting variation in the axial magnetic field of the rotor () in the form of voltage, and the angular position sensor () moreover includes at least one electronic unit provided for receiving the voltages of the magnetic induction measurement sensors () such as to absolutely deduce therefrom the angular position of the rotor () and send corresponding information, in real time, to the electronic power device. 1. A synchronous machine comprising a stator and a rotor , the machine being equipped with at least one angular position sensor module of the rotor , wherein:the stator has a winding designed to be supplied with multi-phase AC current by an electronic power device,the rotor comprises components that generate magnetic induction and designed to move in rotation when power is supplied to the stator,the angular position sensor module comprises at least one pair of two magnetic induction measurement sensors to detect the variation of the axial magnetic field generated by the components that generate magnetic induction while supplying a voltage, the said sensors of the module or of each module being at an angular deviation of 90 electrical degrees,the magnetic induction measurement sensors, integral with the stator, extend at an axial end of rotor, opposite and immediately next to the axial edges of the ...

MAGNET TEMPERATURE INFORMATION OUTPUT DEVICE AND ROTATING ELECTRICAL MACHINE

A magnet temperature information output device is disposed on a rotating electrical machine including a stator and a rotor with a permanent magnet, and is arranged to output temperature information regarding a temperature of the permanent magnet. The magnet temperature information output device includes an element arranged to detect a magnetic flux and output an electrical signal responding to the detected magnetic flux as the temperature information. The element is disposed on the stator. 1. A magnet temperature information output device that is disposed on a rotating electrical machine including a stator and a rotor with a permanent magnet and is arranged to output temperature information regarding a temperature of the permanent magnet , the device comprising:an element arranged to detect a magnetic flux and output an electrical signal responding to the detected magnetic flux as the temperature information,wherein the element is disposed on the stator.2. The magnet temperature information output device according to claim 1 , further comprising:a temperature sensor that is disposed on the rotor and is arranged such that an electrical resistance of the temperature sensor changes in response to the temperature of the permanent magnet; anda first coil that is disposed on the rotor and is electrically connected to the temperature sensor,wherein the element includes:a second coil arranged to excite the first coil; andan electric-current sensor arranged to output an electrical signal responding to a magnitude of a current flowing through the second coil.3. The magnet temperature information output device according to claim 2 , further comprising:a capacitor that is disposed on the rotor and forms an LC resonance circuit together with the first coil.4. The magnet temperature information output device according to claim 1 ,wherein the element includes a magnetic sensor arranged to detect a magnetic flux of the permanent magnet.5. A rotating electrical machine claim 1 , ...

Combined Power And Communications Cable

Aspects of the present invention provide an improved cable having a reduced cross section while continuing to provide high voltage (noisy) power signals alongside low voltage (noise-susceptible) data signals. The improved cable can be used for power delivery and communications between a motor and a drive in an industrial control system. The reduced cross section advantageously improves handling. By providing separate groups between a group delivering the power signals and a group providing the data signals, thereby enforcing a physical separation, and by twisting together individual conductors of the group delivering the power signals with the group providing the data signals and the groups providing the separation, the reduced cross section can be achieved while continuing to minimize noise and interference onto the data signals due to the power signals. 1. An electrical cable comprising:a plurality of insulated power conductors for delivering electric power;at least one insulated data conductor for providing data communication; andfirst and second separation structures,wherein the power conductors, the data conductor and the separation structures are twisted together around a common center and covered by an electrical shield, andwherein the first separation structure is arranged between the data conductor and the power conductors on a first side of the power conductors and the second separation structure is arranged between the data conductor and the power conductors on a second side of the power conductors.2. The cable of claim 1 , wherein power conductors comprise first claim 1 , second and third power conductors for delivering three phase electric power.3. The cable of claim 1 , wherein the electrical shield is a first electrical shield and the data conductor is a first data conductor claim 1 , and further comprising a second data conductor claim 1 , wherein the first and second data conductors are twisted together and covered by a second electrical shield.4. ...

ELECTRIC WORK MACHINE

An electric work machine in one aspect of the present disclosure includes a motor, a driver, and a temperature sensor. The motor includes a stator, and a rotor. The stator includes a cylindrical body, a tooth, and a coil. The cylindrical body includes a first inner circumferential surface. The tooth is disposed to stand on the first inner circumferential surface. The coil is wound around the tooth. The coil generates a magnetic force in response to receiving an electric power. The temperature sensor is installed in/on the tooth. 116-. (canceled)17. An electric work machine comprising: 'a motor configured to be driven with an electric power from the battery;', 'a battery;'} a rotor having a shaft; and', 'a stator back-ring including:', 'a stator having a cylindrical shape and including an inner circumferential surface, the inner circumferential surface including a first part and a second part, the stator including], 'the motor includinga back core having a cylindrical shape and containing a magnetic substance, the back core including a first inner circumferential surface that corresponds to the first part of the inner circumferential surface; and of the inner circumferential surface, and', 'a stator tooth including:, 'a first back-ring having a cylindrical shape and containing resin, the first back-ring being disposed adjacent to the back core, the first back-ring and the back core are aligned along the shaft, and the first back-ring including a second inner circumferential surface that corresponds to the second part'}a core tooth disposed to stand on the first inner circumferential surface, and the core tooth containing a magnetic substance; anda first tooth disposed to stand on the second inner circumferential surface, the first tooth containing resin, the first tooth being disposed adjacent to the core tooth, the first tooth and the core tooth are aligned along the shaft, and the first tooth including a first side surface not facing the core tooth, and 'a chuck ...

Power Generation Systems

A power generation system is provided that includes an internal combustion engine configured to provide rotational mechanical energy. A generator is configured to receive the rotational mechanical energy and generate electrical power in response to the rotational mechanical energy. A fluid medium is provided to the internal combustion engine and to the generator for removing thermal energy from the internal combustion engine and from the generator. 120-. (canceled)21. A power generation system comprising:a generator;a combination of power applications, each power application connected to a power demand different from another;a logic control configured to model designed capabilities of respective power applications; anda mode control configured to combine the design capabilities to create a design capability of the power generating system which is different from the design capabilities of the respective power applications.22. The system in wherein the logic control models:maximum sustainable available power to a connected power demand; andmaximum intermittent and instantaneous available power.23. The system of wherein the logic control is configured to assess the durability of respective power applications within the model and indicates the assessment to the power generation system.24. The system of wherein the logic control is configured to change proportions of contributions of the respective power applications to change power available to the respective power demands to another maximum sustainable available power.25. The system of wherein the mode control is configured to:receive an indication from at least one of the power applications; andin response to the indication, modify activation and proportion contributions to the respective power applications.26. A power generation system comprising:a generator;a combination of power applications, each power application connected to a power demand different from another;a thermal system connected to components of the ...

ROTATING ELECTRIC MACHINE

Provided is an excellent insulating rotating electric machine having a small axial size and a small number of components. In the rotating electric machine according to the present invention, radially outer-side terminals and radially inner-side terminals extend from slots while a circumferential bending direction is alternately changed for each group of n radially outer-side terminals or n radially inner-side terminals after the extension thereof from the slots. A first angle formed between at least one of an oblique-side portion of each of the n radially inner-side terminals, which are continuous in the circumferential direction of the stator core and are bent in the same circumferential bending direction, and an oblique-side portion of each of the n radially outer-side terminals, which are continuous in the circumferential direction and are bent the same circumferential bending direction, and an end surface of a stator core monotonously decreases in the circumferential bending direction. 1. A rotating electric machine , comprising a stator including: a stator core having an annular shape , which includes slots arranged in a circumferential direction of the stator core; and a stator winding mounted to the stator core ,wherein the stator winding includes a plurality of winding bodies formed by distributed winding, each being formed by winding a conductor wire a plurality of turns, which are inserted into a plurality of the slots to be mounted to the stator core;wherein each of the winding bodies includes a radially inner-side terminal extending from a radially innermost position in a corresponding one of the slots to one axial side of the stator core and a radially outer-side terminal extending from a radially outermost position in a corresponding one of the slots to the one axial side of the stator core,wherein each of the radially inner-side terminals for forming each of phase windings of the stator winding among the radially inner-side terminals extends from a ...

Thermally protected electric motor

An electric motor for driving a motor vehicle component, such as a fan motor for cooling cooling water, has a thermal fuse with a contact spring. The contact spring has attached ends that are connected to a conducting path section between which an interruption point is formed. The springy ends of the contact spring are in soldered contact with each other in a spring-biased manner. The thermal fuse is a fuse module with a plastic support in which the conducting path sections are partially embedded in such a way that the contact spring lies in a window opening in the support. Terminals of the conducting path sections protrude from the plastic support.

ROTATING ELECTRIC MACHINE

Workability during attachment of a sensor element to a rotating electric machine is improved. A semiconductor element functioning as a sensor element for detecting temperatures of concentrated winding coils is inserted between two concentrated winding coils adjacent to each other in a plurality of the concentrated winding coils. One end of a lead wire is connected to the semiconductor element, while the other end of the lead wire is drawn out of a stator. The lead wire has a plurality of bent portions. A hook regulates an extending direction of the lead wire drawn out of the stator such that a bent state of the bent portions of the lead wire is maintained. 1. A rotating electric machine comprising:a rotor;a stator that includes a plurality of coils;a sensor element that detects temperatures of the coils;a lead wire connected to the sensor element; anda guide mechanism that regulates an extension direction of the lead wire,wherein the sensor element is inserted between two adjacent coils of the plurality of coils,one end of the lead wire is connected to the sensor element,the other end of the lead wire is drawn out of the stator,the lead wire has a plurality of bent portions, andthe guide mechanism regulates the extension direction of the lead wire drawn out of the stator such that a bent state of the bent portions of the lead wire is maintained.2. The rotating electric machine according to claim 1 , wherein a first extending portion that extends in an axial direction of the stator from the one end,', 'a first bent portion that is bent in a direction toward an outer circumferential side of the stator from the first extending portion,', 'a second extending portion that extends in a radial direction of the stator from the first bent portion,', 'a second bent portion that is bent in the axial direction from the second extending portion, and', 'a third extending portion that extends in the axial direction from the second bent portion, and is drawn out of the stator, and, ...

EXTERNAL TEMPERATURE SENSOR ASSEMBLY

Embodiments herein provide an electrical machine comprising a stator with a stator winding arrangement, a rotor arranged for rotation inside the stator, a machine housing for housing the stator, at least one temperature sensor arrangement and wherein a sensor-end of the temperature sensor is arranged for insertion into the immersion sleeve and for insertion through an insertion bore arranged in an opening in the machine housing, so that the sensor-end of the temperature sensor is positioned within a cooling slot of the stator windings, when inserted, so as to allow sensing of a temperature of measure of temperature of the stator windings by electric connection to the wire-end of the temperature sensor. 1. An electrical machine (EM) comprising;a stator (ST) with a stator winding arrangement comprising stator windings (SVV) with cooling slots (CS),a rotor (RO) arranged for rotation inside the stator,a machine housing (MH) for housing the stator, and a temperature sensor (TS) with a sensor-end (SE) and a wire-end (WE), and', 'an immersion sleeve (IS);, 'at least one temperature sensor arrangement comprisingwherein an insertion angle of the temperature sensor arrangement through the machine housing (MH) is perpendicular to or approximately perpendicular to an axis of rotation of the rotor (RO), andwherein the sensor-end of the temperature sensor is arranged for insertion into the immersion sleeve and for insertion through an insertion bore (IB) arranged in an opening in the machine housing, so that the sensor-end of the temperature sensor is positioned within a cooling slot of the stator windings, when inserted, so as to allow sensing of a temperature of measure of temperature of the stator windings by electric connection to the wire-end of the temperature sensor.2. The electrical machine (EM) according to claim 1 , comprising an external terminal monitoring box (MB) connectable at the wire-end (WE) of the temperature sensor (TS) claim 1 , so as to allow an electric ...

Cooking device and method for preventing cooking device from overheating

A cooking device is provided. The cooking device supplied with power through an AC power supply including a neutral line includes: a motor configured to drive a cooling fan; a main board mounted with a plurality of components for an operation of the cooking device; and a thermal protector having one end connected to the neutral line of the AC power supply and the other end commonly connected to the motor and the main board, wherein the thermal protector cuts off connection between the neutral line and the main board through the thermal protector if a temperature of the motor is equal to or higher than a predetermined value.

EXCHANGEABLE TEMPERATURE DETECTION UNIT FOR A STATOR OF AN ELECTRIC MOTOR

A temperature detection unit for a stator of an electric motor, includes a plate, a support element, at least two feet, and at least two temperature sensors, wherein the temperature sensors are arranged one on each of the feet. 2111131511133133. The temperature detection unit () according to claim 1 , wherein at least one sealing element ( claim 1 , ) is arranged on the plate () claim 1 , wherein the sealing element ( claim 1 , ) has a region ( claim 1 , ) extending beyond the plate.313579272979. The temperature detection unit () according to claim 1 , wherein the feet ( claim 1 , ) each have a recess ( claim 1 , ) and at least one temperature sensor ( claim 1 , ) is arranged in each of these recesses ( claim 1 , ).41191517. The temperature detection unit () according to claim 1 , wherein a further sealing element () is arranged between the plate () and the support element ().51351715353739. The temperature detection unit () according to claim 1 , wherein a channel runs through the feet ( claim 1 , ) and the support element () penetrating the plate () and a conductor ( claim 1 , claim 1 , ) is guided in this channel.611817351835. The temperature detection unit () according to claim 1 , wherein a cross member () is arranged between the support element () and the feet ( claim 1 , ) and the cross member () distances the feet ( claim 1 , ) from one another.7100414543135451543. An electric motor () comprising a stator () with a winding head () claim 1 , an end shield () and a temperature detection unit () according to claim 1 , wherein the feet ( claim 1 , ) bear against the winding head () and the plate () is operatively connected to the end shield ().8100184545. The electric motor () according to claim 7 , wherein the cross member () lies on the winding head () or is pressed partially into the winding head ().910017214543. The electric motor () according to claim 7 , wherein the support element () is arranged in a space () between winding head () and end shield ().10. ...

STATOR WITH A TEMPERATURE DETECTION UNIT FOR AN ELECTRIC MOTOR

A stator for an AC motor, includes windings of a first layer, which extend over a first region of the stator and are connectable to a first phase, and windings of a second layer, which extend over a second region of the stator and are connectable to a second phase, wherein the first region is offset relative to the second region and at least one overlap region is formed which is smaller than the individual regions, and wherein a temperature detection unit is arranged in the overlap region and is designed to measure the temperature of the windings in the overlap region. 23391613. The stator () according to claim 1 , wherein the temperature detection unit comprises two sensors: one sensor at an outer diameter and one sensor at an inner diameter of the stator () claim 1 , with each sensor being designed to measure the temperature of the windings ( claim 1 , ) of the first and second layer in the overlap region ().33118322781413139111613. The stator () according to claim 1 , comprising windings () in a third layer which lie between the first and second layer and extend over a third region () of the stator () and are connectable to a third phase (A claim 1 , B) claim 1 , wherein one region ( claim 1 , claim 1 , ) is offset relative to another region and an overlap region () is formed which is smaller than the individual regions claim 1 , wherein the temperature detection unit is arranged in the overlap region () and is designed to measure the temperature of the windings ( claim 1 , claim 1 , ) in the overlap region ().5399161677141421212121111188991616771414a,aa,aa,b,caaa,aa,a. The stator () according to claim 4 , wherein windings ( claim 4 , claim 4 , ) of the first or second layer which extend over two regions ( claim 4 , claim 4 , ) of the same layer form an extended overlap region ( claim 4 , ) with windings ( claim 4 , ) of the third layer which extend over one region ( claim 4 , ) and windings ( claim 4 , claim 4 , ) from a further region ( claim 4 , claim 4 , ) of ...

TEMPERATURE ABNORMALITY DETECTION DEVICE AND MOTOR

A temperature abnormality detection device that detects an abnormality in temperature of a motor including a stator and a rotor, includes: a temperature acquisition unit that acquires a temperature of a winding of the stator; a speed acquisition unit that acquires a rotation speed of the rotor; an allowable value changing unit that changes an allowable value for the temperature of the winding in accordance with an acquired rotation speed of the rotor; a comparison unit that compares an acquired temperature of the winding with a changed allowable value for the temperature of the winding based on the rotation speed of the rotor; and an output control unit that controls an external output of a warning signal indicating an excess of the temperature of the winding with respect to the allowable value. 1. A temperature abnormality detection device that detects an abnormality in temperature of a motor including a stator and a rotor , the temperature abnormality detection device comprising:a temperature acquisition unit that acquires a temperature of a winding of the stator;a speed acquisition unit that acquires a rotation speed of the rotor;an allowable value changing unit that changes an allowable value for the temperature of the winding in accordance with an acquired rotation speed of the rotor;a comparison unit that compares an acquired temperature of the winding with a changed allowable value for the temperature of the winding based on the rotation speed of the rotor; andan output control unit that controls an external output of a warning signal indicating an excess of the temperature of the winding with respect to the allowable value.2. The temperature abnormality detection device according to claim 1 , wherein the allowable value changing unit reduces the allowable value for the temperature of the winding as the rotation speed of the rotor becomes faster.3. The temperature abnormality detection device according to claim 1 , wherein the allowable value changing unit ...

HERMETIC MOTOR COOLING AND CONTROL

An apparatus and method for cooling a compressor motor () having a motor stator () and cooling a rotor () in a refrigerant system (). The method cools the rotor and the stator, electromagnetic bearings () located within a compressor housing by providing refrigerant liquid to the stator internal channels, the channels being in fluid communication with a rotor passageway (), and a flow-control device () controlling refrigerant flow into the stator. A temperature monitoring device () in communication with a controller () monitors motor temperature. The controller () evaluates the motor temperature and adjusts refrigerant flow through the flow control device (), maintaining the motor () within a predetermined temperature range. 1. A compressor assembly comprising:a compressor housing;{'b': '100', 'a compressor () positioned within the housing;'}{'b': '100', 'a compressor inlet, to input refrigerant gas to the compressor ();'}{'b': '152', 'claim-text': a motor housing,', {'b': 162', '164, 'a stator () positioned within the motor housing, the stator having windings and cooling channels (),'}, {'b': 166', '162', '102, 'a rotor () positioned within the stator (), the rotor having a shaft having a first end connected to an impeller () the compressor and a second end,'}, {'b': 166', '100, 'wherein when electrical current is applied to the stator windings, the rotor () rotates, causing the compressor () to operate;'}, {'b': 160', '166, 'electromagnetic bearings () positioned at both ends of the rotor () to support the rotor when current is applied to the stator windings;'}], 'a motor (), the motor comprising'}{'b': '152', 'claim-text': [{'b': '176', 'a temperature monitoring device () positioned within the stator;'}, {'b': 186', '190', '162, 'a stator inlet () and a stator outlet (), the stator inlet receiving liquid refrigerant for cooling the stator (),'}, {'b': 192', '170', '174', '190, 'a rotor inlet (), a rotor liquid () drain and a rotor gas vent (), the rotor inlet ...

CONDITION MONITORING DEVICE FOR AN ELECTRICAL MACHINE

In aspects, the present invention provides a condition monitoring device for monitoring a condition of an electrical machine. The condition monitoring device comprises a housing affixed on a frame of the electrical machine, one or more sensors within the housing, for measuring one or more parameters of the electrical machine, and one or more magnetic coils electrically connected to an electrical energy storage unit located in the housing. The one or more magnetic coils are located within a cavity in the stator core thorough an aperture in the frame of the electrical machine and form an inductive circuit with one or more windings of the electrical machine, for supplying current to the electrical energy storage unit. 1. A condition monitoring device for monitoring a condition of an electrical machine , the condition monitoring device comprising:a housing affixed on a frame of the electrical machine;one or more sensors for measuring one or more parameters of the electrical machine, the one or more sensors housed within the housing of the electrical machine;one or more magnetic coils electrically connected to an electrical energy storage unit located in the housing, the one or more magnetic coils located within a cavity in the stator core thorough a aperture in the frame of the electrical machine;wherein the magnetic coils form an inductive circuit with one or more windings of the electrical machine, for supplying current to the electrical energy storage unit.2. The condition monitoring device of claim 1 , wherein an axis of symmetry of a first magnetic coil from the one or more magnetic coils claim 1 , is parallel to a first axis claim 1 , and an axis of symmetry of a second magnetic coil from the one or more magnetic coils claim 1 , is perpendicular to the first axis claim 1 , wherein the first axis is parallel to the rotational axis of the electrical machine.3. The condition monitoring device of claim 1 , wherein the housing comprises a screw bolt having an external ...

SPEED-REGULATED EXTERNAL FANS FOR THE TEMPERATURE-CONTROLLED THROUGHPUT VENTILATION OF TURBOGENERATORS, PHASE SHIFTERS, AND ROTATING ELECTRICAL MACHINES FOR NETWORK STABILIZATION

In a rotating electrical machine, in particular a generator, different components, such as, for example, rotor, stator rod and end zone, are cooled as required by associated external fans, whereby the cooling power requirement is reduced. The method for cooling includes a plurality of cooling fans arranged for cooling different components of the machine, wherein a cooling fan is individually controlled in its cooling performance in accordance with the temperature of the associated component. 1. A method for cooling a rotating electrical machine , wherein the machine has a housing (G) and a throughput ventilation type cooling system , the method comprising:{'b': 1', '2', '3, 'arranging a plurality of cooling fans (EG, EG, EG) for respective cooling with cooling air of different components of the machine, and'}individually controlling a cooling power of a cooling fan of the plurality of cooling fans according to a temperature of an associated component.2. The method as claimed in claim 1 , further comprising:a guide element which guides the cooling air from the cooling fan to the associated component which is to be cooled.3. The method as claimed in claim 1 , further comprising:a guide element which guides the cooling air from the associated component to be cooled to the cooling fan.4. The method as claimed in claim 1 ,wherein the cooling air flows through a filter device at an inlet (E) of the housing.5. The method as claimed in claim 1 ,wherein the temperature of a component to be cooled is detected by a measuring probe.6. The method as claimed in claim 1 ,wherein the temperature of a component to be cooled is detected by a slot resistance thermometer.7. The method as claimed in claim 1 ,wherein the temperature of a component to be cooled is detected by a virtual sensor.8. The method as claimed in claim 1 ,wherein the temperature of a component to be cooled is detected by continuous calculation of a digital twin.9. The method as claimed in claim 1 ,wherein a cooling ...

Electric power tool

A vibration driver drill as an electric power tool includes a brushless motor that includes a rotor and a sensor circuit board that detects a rotation of the rotor. The rotor includes a tubular rotor core and four permanent magnets held in the rotor core so as to extend in an axial direction of the rotor core. The sensor circuit board is adjacent to a front-end part (first end portion) of the rotor core. The rotor core is provided with a recessed groove on a side surface outward between the mutually adjacent permanent magnets. The recessed groove extends from the front-end part in the axial direction of the rotor core without reaching a rear-end part (second end portion) facing the front-end part.

Temperature compensated linear actuator and encoder

A linear actuator includes a casing that contains a moveable shaft moved by a motor in response to a drive signal and coupled to an encoder that determines an actual instantaneous position of the shaft and forms part of a control loop that adjusts the drive signal so as to ensure accurate positioning of the shaft. A temperature sensor mounted on the shaft produces a temperature signal indicative of instantaneously measured temperature, and a temperature compensator responsive to the measured temperature for generating a negative or positive offset for correcting the drive signal so as to move the shaft to a positon that is corrected for instantaneous expansion or contraction of the shaft owing to departures of the shaft's actual temperature from a known baseline temperature.

METHODS FOR ANALOG TEMPERATURE COMPENSATION OF BIAS AND OFFSETS OF A DIFFERENTIAL SENSOR

A measurement circuit that is configured to provide a torque reading to a motion controller includes an offset controller and an amplifier. The offset controller is configured to read a temperature signal and to generate an offset voltage in response to receiving the temperature signal. The amplifier is configured to read a differential voltage from a differential sensor and to receive the offset voltage from the offset controller. The amplifier is also configured to add the offset voltage to the differential voltage after applying a gain to the differential voltage to generate an adjusted voltage. The amplifier is then configured to transmit the adjusted voltage.

Motor and hairpin stator thereof

A hairpin motor stator includes a stator core, a plurality of slots, a first hairpin wire and a temperature sensor. The stator core defines a rotor accommodating space. The slots are located on the stator core, and each slot extends in a radial direction from the rotor accommodating space. Each slot has a side opening adjacent to the rotor accommodating space. One of the slots is a temperature sensor accommodating slot. The first hairpin wire is located in the temperature sensor accommodating slot and proximal to the side opening of the temperature sensor accommodating slot. The temperature sensor is between the side opening of the temperature sensor accommodating slot and the first hairpin wire. The temperature sensor is larger than the side opening of the temperature sensor accommodating slot such that the temperature sensor is enclosed in the temperature sensor accommodating slot.

Generator enclosure with fire damper

A generator enclosure for an engine-generator includes multiple walls defining at least one air path. In one example, a first wall includes an exhaust path for the engine-generator, and a second wall includes an intake path for the engine-generator. The generator enclosure may include at least one air flow frame associated with the exhaust path or the intake path and at least one movable wall supported by the at least one air flow frame, At least one thermal fuse may be coupled to the at least one movable wall and configured to release the at least one movable wall to block the exhaust path or the intake path.

ROTATING ELECTRIC MACHINE AND ARMATURE

A rotating electric machine includes a neutral busbar and a temperature sensor. The neutral busbar has a main body and a bent part that retains the temperature sensor therein. The main body has first and second parts each of which has one or more connection terminals formed therein. The bent part is formed between a circumferential end portion of the first part and a circumferential end portion of the second part. In the first part, there is formed, between the circumferential end portion of the first part and a closest connection terminal formed in the first part to the bent part, a first extending portion that extends axially or radially. Similarly, in the second part, there is formed, between the circumferential end portion of the second part and a closest connection terminal formed in the second part to the bent part, a second extending portion that extends axially or radially.

ELECTRIC MOTOR COMPRISING A THERMAL FUSE

An electric motor for driving a motor vehicle component, in particular a fan impeller for cooling cooling water, having an electronics unit that includes a lead frame around which injection-molded plastic is provided and which has a current path conducting the motor current, and having two spaced-apart current path ends that form an interruption point bridged by a thermal fuse in the form of a spring-biased contact bridge. The contact bridge is mounted so as to be pivotable about an axis of rotation extending perpendicular to the plane of the interruption point. An abutment contour, against which the contact bridge pivots as a result of the restoring force of a spring element when the thermal fuse is triggered, limits the pivoting range of the contact bridge. 1. An electric motor for driving a motor vehicle component , the electric motor comprising:an electronics unit that includes a lead frame, which is provided with plastic encapsulation and has a current path conducting the motor current; andtwo spaced-apart current path ends that form an interruption point bridged by a thermal fuse in the form of a spring-biased contact bridge,wherein the contact bridge is held so as to be pivotable about a rotation axis extending substantially perpendicular to a plane of the interruption point.2. The electric motor according to claim 1 , wherein an abutment contour that limits the pivoting range of the contact bridge is provided against which the contact bridge pivots rotationally as a result of a restoring force of a spring element when the thermal fuse is triggered.3. The electric motor according to claim 2 , wherein the abutment contour claim 2 , acting as an end stop for the contact bridge when the thermal fuse is triggered claim 2 , is formed from the plastic encapsulation.4. The electric motor according to claim 1 , wherein the contact bridge is arranged and/or guided in a circle segment-like guide slot formed from the plastic encapsulation claim 1 , which limits the ...

POWER-GENERATING APPARATUS FOR DOWNHOLE TUBULARS

A plurality of energy-generator pods, and methods of use, are provided along a rotatable tubular string extending downhole from surface into a wellbore. In embodiments, rotation of the tubular acts as a rotor of the pod and an outer component about the tubular, capable of relative rotation thereabout, forms the stator. The pod can also be equipped with bi-directional wireless electronic data communication including communication uphole to surface from sensors downhole, pod-to-pod, and down-hole communication to downhole tools. Pods can be fit to centralizers already employed for rotary tubular strings, the centralizer portion engaging the wellbore and remaining stationary relative to the rotating centralized tubular. 1. An energy generator for a rotatable tubular extending downhole along a wellbore comprising:a first energizing portion drivably rotatable by rotation of the tubular; anda second energizing portion supported concentrically about the first energizing portion and rotatable relative thereto; andwherein, when the tubular rotates the first energizing portion rotates relative to the second energizing portion, electrical current is generated from one of the first or second energizing portions.2. The generator of claim 1 , wherein:one of the first or second energizing portions being a magnet for producing a magnetic field, and the other of the second and first energizing portion comprises an electrical coil, relative movement of the coil and magnetic field inducing current therein.3. The generator of further comprising a wireless data transmitter for communication of data signals between generators.4. The generator of whereinthe rotatable tubular comprises a string of rotating tubulars, at least one tubular being an energy-generating tubular comprising a rotor having an axis and a stator concentric thereto and rotatable about the rotor's axis; andfor each generating tubular, the rotor comprises the first or second energzing portion and the stator comprises the ...

COMPONENT MONITORING

A component monitoring apparatus [] including an input [] to receive sensor data from a sensor arrangement [S-S]. The sensor data representative of a use of a respective component [] during a monitoring interval. A memory [] provided to store received sensor data and a life parameter associated with the component [], an interface [] provided to communicate with a remote device and a power cell [] provided to power the apparatus []. The apparatus [] arranged to: store in the memory [] received sensor data, in response to a trigger, read the sensor data from the data memory [] and transfer the sensor data to the remote device, and, in response to receipt of a data packet containing a life parameter associated with the usage of the component [], store the life parameter to the memory [ 1. A component monitoring apparatus comprising:an input to receive sensor data from a sensor arrangement, the sensor data being representative of use of a component during a monitoring interval;a non-transitory memory to store data representing received sensor data and a life parameter associated with the component;an interface to communicate with a remote device; anda power source to power the apparatus, store in the memory data representing received sensor data;', 'in response to a trigger, read the stored data from the data memory and transfer the said data to the remote device; and', 'in response to receipt of a data packet from the remote device containing a life parameter associated with the usage of the component, store the life parameter to the memory., 'wherein, the apparatus is arranged to2. The apparatus according to claim 1 , comprising a sensor arrangement to generate the sensor data.3. The apparatus according to claim 1 , wherein the memory comprises volatile memory to store sensor data.4. The apparatus according to claim 1 , wherein the memory comprises non-volatile memory to store the life parameter.5. The apparatus according to claim 4 , wherein the non-volatile memory ...

ROTATING ELECTRIC MACHINE

In the rotating electric machine, a first terminal and a second terminal extend from two of the slots and a third terminal extends from one of the slots, which is located between the two slots. The first terminal and the second terminal are connected to each other with use of a bus bar. The bus bar has: a first end portion to be connected to a distal end portion of the first terminal; a second end portion to be connected to a distal end portion of the second terminal; and an interconnecting portion configured to couple the first end portion and the second end portion to each other, which is arranged in the circumferential direction on the stator core side of the first end portion and the second end portion so as to pass on the slot side of the third terminal. 1. A rotating electric machine comprising a stator , a stator core having an annular shape, which has a plurality of slots formed in a circumferential direction of the stator core; and', 'a stator winding mounted to the stator core,, 'the stator includingwherein the stator winding includes a plurality of coils formed by distributed winding, each being made of a conductor that is insulation-coated, 2X (X is a natural number equal to or larger than 1) slot insertion portions inserted into the slots;', '(2X-1) turn portions configured to connect the 2X slot insertion portions alternately on one axial end side and another axial end side of the stator core to continuously couple the 2X slot insertion portions;', 'radially inner-side terminals, each extending from the slot insertion portion located at one end of the continuously coupled slot insertion portions; and', 'radially outer-side terminals, each extending from the slot insertion portion located at another end of the continuously coupled slot insertion portions,, 'wherein each of the plurality of coils includeswherein the radially inner-side terminals extend from radially innermost positions in the slots in a one-by-one manner,wherein the radially outer-side ...

SYSTEM, METHOD, AND APPARATUS FOR CONTROLLING OPERATION OF ENERGY MODULES OF AN ENERGY MANAGEMENT SYSTEM

A system includes energy modules that output power to an energy management bus based on load demands. An energy module includes energy cells enclosed within a module housing that provide power to the energy management bus and rotation assemblies attached on opposite ends of the module housing that provide rotational movement for the energy module. The energy module includes a local controller that controls power output from the energy cells to the energy management bus, engages a self-driving mode in response to receiving a disconnection signal from a central controller, and controls movement of the energy module in the self-driving mode to a predetermined location via the first rotation assembly and the second rotation assembly. The central controller receives a current module status from the energy modules and controls a configuration of the energy modules providing power to the energy management bus based on the current module status. 1. A system comprising: one or more energy cells enclosed within a module housing configured to provide the power to the energy management bus,', 'a first rotation assembly and a second rotation assembly attached on opposite ends of the module housing that are configured to provide rotational movement for the energy module, and', control an amount of power output from the one or more energy cells to the energy management bus,', 'engage a self-driving mode of the energy module in response to receiving a disconnection signal from a central controller, and', 'control movement of the energy module in the self-driving mode to a predetermined location via the first rotation assembly and the second rotation assembly; and, 'a local controller with first circuitry configured to'}], 'one or more energy modules configured to output power to an energy management bus based on load demands wherein an energy module of the one or more energy modules includes'} receive a current module status from the one or more energy modules, and', 'control a ...

WIRING CONFIGURATION FOR A STATOR, TEMPERATURE SENSOR DEVICE, AND SYSTEM FOR DETECTING A TEMPERATURE

The disclosure relates to a wiring configuration for a stator of an electric machine. The wiring configuration comprises a busbar which forms a segment of a switching ring with an outer connection and a winding connection. Outer connection elements and winding connection elements are arranged in a wiring region. The wiring configuration additionally comprises a receiving element which is at least thermally coupled to the busbar. The receiving element is arranged outside of the wiring region. The disclosure additionally relates to a temperature sensor device for plugging onto the receiving element of the wiring configuration and to a system for detecting the temperature of a stator. 1. An interconnection arrangement for a stator of an electrical machine , the interconnection arrangement comprising: at least one busbar , which forms at least one segment of a connector ring with an external terminal and a winding terminal , wherein contact elements of the external terminal and of the winding terminal are arranged in an interconnection region formed in a circumferential direction of the connector ring segment , through which region a current path of the interconnection arrangement extends from the external terminal to the winding terminal; and a receiving element for a temperature sensor arranged outside the interconnection region on the connector ring segment , wherein the receiving element is coupled at least thermally with the connector ring segment.2. The interconnection arrangement as claimed in claim 1 , wherein the receiving element extends in the circumferential direction of the connector ring segment.3. The interconnection arrangement as claimed in claim 1 , wherein the receiving element extends in an axial and/or radial direction of the connector ring segment.4. The interconnection arrangement as claimed in claim 1 , wherein the receiving element has two receiving bars.5. The interconnection arrangement as claimed in one claim 1 , wherein the receiving element ...

CORELESS ROTATING ELECTRICAL MACHINE FOR BEING OPERATED UNDER LOAD EXCEEDING RATING, DRIVING METHOD THEREOF, AND DRIVING SYSTEM INCLUDING THEREOF

A coreless rotating electrical machine for being operated continuously comprises a stator including an energizable coreless cylindrical coil and a lid-type mount; and a rotor including a cup-type mount. The lid-type mount is equipped with a channel for supplying a refrigerant liquid to the air gap. The coreless rotating electrical machine is operated continuously by supplying the refrigerant liquid into the air gap, allowing the cylindrical coil, which generates heat, to vaporize the refrigerant liquid, cooling the cylindrical coil by latent heat of vaporization, and repeating an operation of supplying the refrigerant liquid to prevent a temperature of the cylindrical coil exceeding an allowable maximum temperature, and an operation of adjusting the supply of the refrigerant liquid to prevent the temperature of the cylindrical coil falling below a minimum temperature, so as to maintain the temperature in a range between the allowable maximum and minimum temperatures. 1. A coreless rotating electrical machine to be operated continuously , comprising:a stator including an energizable coreless cylindrical coil and a lid-type mount which fixes an end face of the cylindrical coil; anda rotor including a cup-type mount opposingly and rotatably positioned with respect to the lid-type mount, wherein:an air gap is formed between the lid-type mount and the cup-type mount, an outer surface of each of the magnets is faced to an inner surface of the cylindrical coil within the air gap,', 'an inner surface of each of the magnets is faced to an outer surface of the cylindrical coil within the air gap, or', 'an outer surface of each magnet of a first group of the magnets is faced to an inner surface of the cylindrical coil within the air gap and an inner surface of each magnet of a second group of the magnets is faced to an outer surface of the cylindrical coil within the air gap,, 'the cup-type mount is equipped with magnets, whereinthe lid-type mount is equipped with a channel ...

Method and system for cooling an electric motor of a simulation or video game controller

A method and system for cooling an electric motor of a simulation or video game controller that comprises a rotor arranged in a casing, wherein the method comprises a forced air ventilation from the outside of the casing to the inside of the casing by a fan arranged on the rotor and kinetically decoupled from the rotor. As such, cold outside air is recovered and circulates through the coils which constitute the heat source and expulsed to the other end of the motor. There is therefore a homogeneous extraction of the heat from the coils. As the fan is kinetically decoupled from the rotor, the cooling system therefore operates independently of the speed of rotation of the main shaft of the motor.

ELECTRICAL MACHINE PROVIDED WITH A DAMPER IN ORDER TO RESIST VIBRATORY STRESSES MECHANICALLY, AND CORRESPONDING DAMPER

An electrical rotating machine comprising a stator () provided with teeth () around which a group of coils () is wound, an annular interconnector () resting on a stator lamination stack () provided with tongues () to which ends () of the coils () are welded for the formation of phases (U, V, W) of the electrical machine, and a flange () for closing a housing () for receiving the stator (). The machine also comprises at least one damper () consisting of a deformable material, which is to be mounted in such a way that it is compressed between the interconnector () and the closing flange () of the machine. The invention also relates to the corresponding damper. 111141922113619119219747011832274. Rotary electrical machine comprising a stator () provided with teeth () around which a series of coils () are wound , an annular interconnector () supported on a set of plates of the stator () provided with tongues () , on which ends ( , ) of the coils () are welded for formation of phases (U , V , W) of the electrical machine , and a flange () for closure of a housing () containing the stator () , and in that it additionally comprises at least one damper () made of a deformable material which is designed to be fitted compressed between the interconnector () and the closure flange () of the machine.28322. Machine according to claim 1 , characterised in that the damper () with an annular form extends around the entire circumference of the interconnector ().38322. Machine according to claim 1 , characterised in that it comprises a plurality of dampers () which each extend around a portion of a circumference of the interconnector ().4836122. Machine according to claim 3 , characterised in that each damper () extends circumferentially between two support feet () of the interconnector ().583909174. Machine according to claim 1 , characterised in that the damper () is configured to be supported against radial ribs ( claim 1 , ) provided on the closure flange ().6749091838991. Machine ...

TEMPERATURE SENSOR, POWER DISTRIBUTION COMPONENT HAVING THE SAME, AND MOTOR HAVING POWER DISTRIBUTION COMPONENT

A temperature sensor detects temperatures of at least two distribution lines and includes a temperature detection unit and a protection member that covers the temperature detection unit. The protection member is provided with a first abutting surface that has a concave shape corresponding to an outer shape of a first distribution line and is in contact with the first distribution line and a second abutting surface that has a concave shape corresponding to an outer shape of a second distribution line and is in contact with the second distribution line. 1. A temperature sensor that detects temperatures of at least two distribution lines , the temperature sensor comprising:a temperature detection unit; anda protection member that covers the temperature detection unit,wherein the protection member is provided with a first abutting surface that has a concave shape corresponding to an outer shape of a first distribution line and is in contact with the first distribution line and a second abutting surface that has a concave shape corresponding to an outer shape of a second distribution line and is in contact with the second distribution line.2. The temperature sensor according to claim 1 ,wherein the first abutting surface is provided on a first surface of the protection member, andwherein the second abutting surface is provided on a second surface of the protection member on a side opposite to the first surface.3. The temperature sensor according to claim 2 ,wherein, when a virtual line that divides the first abutting surface and the second abutting surface into two halves in a width direction in a transverse section of the protection member is defined as a reference line, the temperature detection unit is arranged at a position on either a right side or a left side with respect to the reference line in the transverse section of the protection member.4. The temperature sensor according to claim 1 , further comprising a lead wire for taking out signals from the temperature ...

Stator and rotating electric machine including the same

A stator includes a stator core, a winding, and a temperature sensor. In the stator core, a plurality of slots are formed in a circumferential direction of the stator. The winding is formed by a plurality of conductors which are housed in the slots and are electrically connected. The slots are formed such that a predetermined number of the conductors are housed and arrayed in a radial direction of the stator. The temperature sensor is located in at least one of the slots and detects temperature of the conductors.

Thermal fuse protection of a form coil generator of a wind power plant

A generator of a gearless wind power installation, with a rotor and a stator, wherein at least the rotor or the stator is provided with a fuse wire, for detecting a local temperature increase, and wherein the fuse wire comprises an electrically conducting material and the electrically conducting material melts when a predetermined temperature is reached, and thereby brings about an interruption of the electrical conduction, in order thereby to detect the local temperature increase.

Motor drive device

A lubricating oil temperature sensor to detect a temperature of a lubricating oil is provided in a lubricating oil passage in a speed reducer, a coil temperature sensor to detect a temperature of a motor coil is provided in a stator of an electric motor, and a rotation speed detection sensor to detect a rotation speed of the electric motor is provided. A control device includes: an abnormality detector to detect an abnormality in the lubricating oil temperature sensor; and a lubricating oil temperature estimator to estimate the temperature of the lubricating oil on the basis of a determined relationship using the temperature detected by the coil temperature sensor and the rotation speed detected by the rotation speed detection sensor, when the abnormality detector detects the abnormality in the lubricating oil temperature sensor.

SENSOR MODULE FOR MOUNTING IN A MOTOR

A sensor module for mounting in a motor includes a holder adapted to be mounted in a wet chamber of the motor, a temperature sensor adapted to be mounted in a dry chamber of the motor, a rotational position sensor mounted on the holder, a connector interface adapted to be plugged into a corresponding connector, and a sealing element arranged between the rotational position sensor and the temperature sensor. The temperature sensor is spaced apart from the holder. The rotational position sensor and the temperature sensor are connected via a plurality of signal lines to the connector interface. The sealing element is sealingly penetrated by the signal lines from one of the rotational position sensor and the temperature sensor. 1. A sensor module for mounting in a motor , comprising:a holder adapted to be mounted in a wet chamber of the motor;a temperature sensor adapted to be mounted in a dry chamber of the motor, the temperature sensor spaced apart from the holder;a rotational position sensor mounted on the holder;a connector interface adapted to be plugged into a corresponding connector, the rotational position sensor and the temperature sensor are connected via a plurality of signal lines to the connector interface; anda sealing element arranged between the rotational position sensor and the temperature sensor and being sealingly penetrated by the signal lines from one of the rotational position sensor and the temperature sensor.2. The sensor module of claim 1 , wherein the sealing element extends from one face side to an opposing face side of the holder.3. The sensor module of claim 1 , wherein the rotational position sensor includes a sealing cover closing the sealing element from at least one side.4. The sensor module of claim 1 , further comprising a holding bracket holding the temperature sensor.5. The sensor module of claim 4 , wherein the holding bracket includes a connector holder removably fixing the connector interface to the holding bracket in a testing ...

ROBUST PERMANENT MAGNET ELECTRIC MACHINE AND METHODS

Methods and apparatus for enhancing the robustness and stability of an electric machine having a rotor, stator and housing. The rotor includes a radially mounted array of permanent magnets and the stator includes a plurality of electromagnets radially positioned around the rotor. The rotor is stabilized by providing a first thermally conductive dielectric encapsulant in contact with adjacent permanent magnets. The stator is stabilized by providing a second thermally conductive dielectric encapsulant in contact with adjacent electromagnets. 1. An electric machine comprising: a shaft defining a length-wise shaft axis;', 'a rotor back assembly surrounding a portion of the shaft;', 'a plurality of permanent magnets radially positioned around the rotor back assembly; and', 'a first thermally conductive dielectric encapsulant substantially filling the gap between two adjacent permanent magnets and being in thermal contact with the two adjacent permanent magnets;, 'a rotor comprising;'} a plurality of electromagnets radially positioned around the rotor and separated from an exterior surface of the rotor by a magnetic air gap; and', 'a second thermally conductive dielectric encapsulant in contact with adjacent electromagnets; and, 'a stator comprising;'}a housing supporting the rotor and stator.2. The electric machine of wherein the housing comprises a totally enclosed non-ventilated (TENV) housing.3. The electric machine of claim 1 , wherein the first thermally conductive dielectric encapsulant is in contact with the rotor back assembly between the two adjacent permanent magnets.4. The electric machine of wherein the rotor back assembly defines an anchoring surface between the adjacent permanent magnets and wherein the first thermally conductive dielectric encapsulant is in contact with the anchoring surface.5. The electric machine of wherein the anchoring surface comprises a groove formed in the rotor back assembly between the adjacent permanent magnets.6. The electric ...

POWER MECHANISM AND HANDHELD TOOL USING THE SAME

A power mechanism and a handheld tool using the same are provided. The power mechanism comprises a motor, a worm, an epicyclic gearing set and a controlling board. The worm is driven by the motor. The epicyclic gearing set is engaged with the worm. The controlling board is used to control the on/off or operating state of the motor. 1. A power mechanism applied to a handheld tool , the power mechanism comprising:a motor;a worm driven by the motor;an epicyclic gearing set engaged with the worm; anda controlling board used to control the on/off or operating state of the motor.2. The power mechanism of claim 1 , wherein the motor is a brushless DC motor.3. The power mechanism of claim 2 , wherein the controlling board has the function of field-oriented control.4. The power mechanism of claim 1 , wherein the epicyclic gearing set comprises a worm gear claim 1 , a sun gear claim 1 , a plurality of outer gears claim 1 , an outer ring gear and a carrier claim 1 , wherein the sun gear is coaxial with the worm gear claim 1 , the worm gear is engaged with the worm claim 1 , the sun gear is engaged with the plurality of outer gears by being assembled on the carrier claim 1 , the outer ring gear is engaged with the plurality of outer gears claim 1 , and the carrier is configured to connect an external transmission shaft.5. The power mechanism of claim 1 , wherein the controlling board further comprises a temperature sensing module which is used to sense the temperature inside the handheld tool.6. The power mechanism of claim 5 , wherein when the temperature sensed by the temperature sensing module is greater than a temperature default value claim 5 , the temperature sensing module sends a first signal to slow down or stop the motor.7. The power mechanism of claim 1 , wherein the controlling board further comprises a pressure sensing module which is used to sense the pressure applied on the handheld tool.8. The power mechanism of claim 7 , wherein when the pressure sensed by the ...

Method For Detecting A Rotor Bar Fault

A rotor bar fault in a rotor of an electrical machine having a plurality of rotor bars and an end ring configured to short circuit the rotor bars. The method includes the steps of measuring a first temperature at a first end ring location, and measuring a second temperature at a second end ring location, the second end ring location being different from the first end ring location. As broken rotor bars cause a non-uniform temperature distribution in the end ring, the detection of rotor bar faults can be based on monitored temperatures at different end ring locations. 1. A method for detecting a rotor bar fault in a rotor of an electrical machine comprising a plurality of rotor bars and an end ring configured to short circuit the rotor bars , the method including the steps of:measuring a first temperature at a first end ring location, and measuring a second temperature at a second end ring location, the second end ring location being different from the first end ring location; andcalculating a temperature difference between the first temperature and the second temperature; characterized by calculating a temperature difference change between the temperature difference at a first instant and the temperature difference at a second instant.2. The method according to claim 1 , wherein the method further includes the step of comparing the temperature difference change with a predetermined second threshold value.3. The method according to claim 2 , wherein the method further includes at least one of the following steps:determining, on the basis that the temperature difference change is equal to or higher than the predetermined second threshold value, that a rotor bar fault is present, anddetermining, on the basis that the temperature difference change is lower than the predetermined second threshold value, that a rotor bar fault is not present.4. The method according to claim 1 , wherein the method further includes the step of comparing the temperature difference with a ...

VEHICLE-MOUNTED ELECTRIC COMPRESSOR

This vehicle-mounted electric compressor is provided with a compressor body including a motor for compressing a refrigerant, and an inverter including a power element for supplying the motor with electric current. The power element is provided with: a metal substrate having an electrically conductive layer in a partial region of the surface thereof; a heat-generating element having a metal layer solder-fixed to the electrically conductive layer; and a resin substrate which is disposed in parallel with the metal substrate in a plate thickness direction of the metal substrate, and has a metal pattern printed on the surface thereof, the metal pattern having an electronic component mounted thereon. The electronic component and a terminal of the heat-generating element are connected by means of the metal pattern. 1. A vehicle-mounted electric compressor comprising:a compressor body that includes a motor compressing a refrigerant; andan inverter that includes a power element supplying an electric current to the motor, a metal substrate that includes an electrically conductive layer provided on a partial region of a surface of the metal substrate,', 'a heat-generating element that includes a metal layer soldered onto the electrically conductive layer, and', 'a resin substrate that is disposed such that the resin substrate and the metal substrate are arranged in a plate thickness direction of the metal substrate and that has a metal pattern printed on a surface of the resin substrate and an electronic component mounted on the metal pattern, and, 'wherein the power element includes'}the electronic component and a terminal of the heat-generating element are connected to each other via the metal pattern.2. The vehicle-mounted electric compressor according to claim 1 , further comprising:a temperature sensor that detects a heat-generating temperature of the heat-generating element.3. The vehicle-mounted electric compressor according to claim 1 ,wherein the power element further ...

Apparatus and method for rotor temperature measurement

An apparatus for automobile vehicle rotor temperature measurement includes a motor having a rotor. A stator has the rotor positioned within the stator. An aperture extends through the stator. A sensor is positioned in alignment with the aperture sensing a temperature of at least a surface of the rotor.

ELECTRIC MACHINE

An electric machine includes a stator having a winding, as well as at least one temperature sensor assembly having a temperature sensor section with a temperature sensor for detecting the temperature in the region of the winding. The ends of at least one part of the conductor on the inner circumference and/or on the outer circumference of the winding protrude axially or radially over the winding. An interconnection ring is placed axially or radially on the winding, which has at least one conductor bridge to which at least one portion of the ends are connected. A receiving section for the temperature sensor section is provided on the conductor bridge, in which the temperature sensor section is accommodated, thermally coupling the temperature sensor with the conductor bridge. 1. An electric machine comprising a stator having a winding , as well as at least one temperature sensor assembly having a temperature sensor section with a temperature sensor for detecting a temperature in region of the winding , wherein ends of at least one part of a conductor on an inner circumference or an outer circumference of the winding protrude axially or radially over the winding , wherein an interconnection ring is placed axially or radially on the winding , which has at least one conductor bridge to which at least one portion of the ends are connected , wherein a receiving section for the temperature sensor section is provided on the conductor bridge , in which the temperature sensor section is accommodated , thermally coupling the temperature sensor with the conductor bridge.2. The electric machine according to claim 1 , wherein the receiving section is rounded or angular in cross-section and the temperature sensor section has a shape-matched cross-section in the region to be arranged in the receiving section.3. The electric machine according to claim 1 , wherein the receiving section is formed in extension of a bent base section of the conductor bridge.4. The electric machine ...

ELECTROMAGNETIC INTERFERENCE SUPPRESSION COMPONENT AND PROTECTION COMPONENT ASSEMBLY FOR A MOTOR

An electromagnetic interference (EMI) circuit assembly includes a first, second, and third conductive layer. A protection component disposed between the first and second conductive layers. A dielectric layer is disposed between the second and the third conductive layers. The protection component is configured to protect a load from one or both of an overcurrent condition and an over temperature condition, and the third layer define a capacitor configured to suppress EMI signals. 1. An electromagnetic interference (EMI) circuit assembly comprising:a first, a second, and a third conductive layer;a protection component disposed between the first and second conductive layers; anda dielectric layer disposed between the second and the third conductive layers,wherein the protection component is configured to protect a load from one or both of an overcurrent condition and an over temperature condition, and the second layer, the dielectric layer, and the third layer define a capacitor configured to suppress EMI signals.2. The EMI circuit assembly according to claim 1 , wherein the protection device corresponds to one of: a polymeric positive temperature coefficient (PPTC) material layer that together with the first and second conductive layers defines a PPTC component claim 1 , a bimetal device thermal cutout (TCO) component.3. The EMI circuit assembly according to claim 1 , further comprising a resilient member electrically coupled to the third conductive layer to facilitate coupling one side of the capacitor to a ground node.4. The EMI circuit assembly according to claim 3 , where in the resilient member corresponds to a spring formed of a conductive material.5. The EMI circuit assembly according to claim 1 , wherein the first claim 1 , second claim 1 , and third conductive layers have a thickness of between about 0.5 mm-0.8 mm claim 1 , a length between about 12 mm-17 mm claim 1 , and a width between about 8 mm and 13 mm other.6. The EMI circuit assembly according to ...

ROTATING ELECTRIC MACHINE AND DRIVE SYSTEM FOR ROTATING ELECTRIC MACHINE

A rotating electric machine includes a housing, a stator core housed in the housing, a plurality of systems of winding groups, a plurality of first lead wires, and a plurality of terminal boxes. The plurality of systems of winding groups are arranged in the stator core and electrically connected to a plurality of power conversion devices, one system of winding group is defined as a plurality of windings electrically connected to one power conversion device. The plurality of first lead wires are electrically connected to the plurality of systems of winding groups and wired inside the housing. The plurality of terminal boxes are arranged at a plurality of places in an outer circumference of the housing, the plurality of first lead wires are distributed in a unit of the system and introduced into the plurality of terminal boxes. 1. A rotating electric machine comprising:a housing;a stator core housed in the housing;a plurality of systems of winding groups arranged in the stator core and electrically connected to a plurality of power conversion devices, one system of winding group being defined as a plurality of windings electrically connected to one power conversion device;a plurality of first lead wires electrically connected to the plurality of systems of winding groups and wired inside the housing; anda plurality of terminal boxes arranged at a plurality of places in an outer circumference of the housing, the plurality of first lead wires being distributed in a unit of the system and introduced into the plurality of terminal boxes.2. The rotating electric machine according to claim 1 ,wherein the plurality of terminal boxes comprise two terminal boxes installed on both sides of the housing via a connecting part in a direction perpendicular to a rotational axis direction, andwherein the first lead wire is introduced into one terminal box among the two terminal boxes, a distance between a coil end part of the winding electrically connected to the first lead wire and ...

Motor-control device

A motor control device includes coil temperature detection means, cooling oil temperature detection means, and a control unit. The control unit implements a coil protection torque restriction and a cooling oil protection torque restriction. The control unit makes it easier for the coil protection torque restriction to be preferentially implemented in a low rotation operating region in which a motor operates at a low rotation speed equal to or lower than a predetermined value, and makes it easier for the cooling oil protection torque restriction to be preferentially implemented in a high rotation operating region in which the motor operates at a higher rotation speed than in the low rotation operating region.

MOTOR WITH INTEGRATED ENVIRONMENTAL SENSOR(S)

An electric motor includes: a control board including circuitry for controlling the electric motor; a cover with an interior space; and a sensor device coupled to the motor and extending into an external environment, the sensor device being thermally isolated from the interior space of the cover and including a sensor configured to measure at least one environmental characteristic of the external environment. 1. An electric motor , comprising:a control board including circuitry for controlling the electric motor;a cover defining an interior space enclosing the electric motor; anda sensor device coupled to the motor and extending into an external environment, the sensor device including a sensor configured to measure at least one environmental characteristic of the external environment.2. The electric motor of claim 1 , wherein:the cover defines an aperture;the sensor device is positioned to extend through the aperture of the cover; andthe sensor device includes first and second enclosure components that are identical and snap together to form an enclosure that houses the sensor.3. The electric motor of claim 1 , wherein the sensor device snaps into the cover of the electric motor claim 1 , and wherein the control board is enclosed within the interior space formed by the cover.4. The electric motor of claim 1 , wherein the sensor device defines openings for airflow from the external environment.5. The electric motor of claim 1 , further comprising a thermal barrier to isolate the sensor device from the interior space of the cover.6. The electric motor of claim 1 , wherein the control board and the sensor device are configured to be powered from a single high voltage supply.7. The electric motor of claim 6 , further comprising one or more electrical wires that electrically connect the sensor device to the control board claim 6 , the electrical wires being less than 4 inches in length.8. The electric motor of claim 6 , wherein the sensor device is electrically ...

STARTER MOTOR WITH INTEGRATED SOLID STATE SWITCH

A starter motor connected to a power supply and operable to start an internal combustion engine includes an outer housing and a solid state switching device associated with the outer housing. The outer housing encloses a commutator and a series of brushes. The solid state switching device is movable between an open position and a closed position. The current flow from the power supply through the commutator is prevented when the solid state switching device is in the open position. 1. A starter motor connected to a power supply and operable to start an internal combustion engine , comprising:an outer housing that encloses a commutator and a series of brushes; anda solid state switching device associated with the outer housing and movable between an open position and a closed position,wherein current flow from the power supply through the commutator is prevented when the solid state switching device is in the open position.2. The starter motor of claim 1 , wherein the solid state switching device includes a MOSFET.3. The starter motor of claim 1 , wherein the solid state switching device is electrically positioned between the commutator and ground.4. The starter motor of claim 1 , wherein the outer housing includes a back plate connected to ground claim 1 , wherein the solid state switching device is electrically connected between one of the series of brushes and the back plate.5. The starter motor of claim 1 , further comprising a brush holder positioned within the outer housing to support the series of brushes relative to the commutator claim 1 , wherein the solid state switching device is mounted to the brush holder.6. The starter motor of claim 1 , further comprising at least one control circuit positioned remotely from the outer housing and connected to the solid state switching device claim 1 , wherein the at least one control circuit is operable to control the operation of the solid state switching device.7. The starter motor of claim 6 , wherein the at least ...

ELECTRONIC APPARATUS

A primary strut, which extends integrally from a heat sink main body, supports a circuit board at a location between a connector terminal and one of a switching device or a drive wiring. A secondary strut, which extends integrally from the heat sink main body, supports the circuit board at a location that is on an opposite side of the switching device and the drive wiring, which is opposite from the connector terminal. A temperature sensor is installed to the circuit board at a location, which is spaced from the primary strut, the switching device and the drive wiring, and at which the temperature sensor senses a temperature of the secondary strut. A control device limits an electric current supplied to the switching device upon estimating a temperature of the switching device while using the temperature, which is sensed with the temperature sensor, as a reference temperature. 1. An electronic apparatus for controlling a drive operation of an electric motor , comprising:a circuit board;a connector terminal that is installed to the circuit board and receives an electric current, which is supplied from an external electric power source to a coil of the electric motor;a plurality of heat-generating devices that are installed to the circuit board and generate heat when the electric current to be supplied to the coil is conducted through the plurality of heat-generating devices; a motor wiring, which is connected to the coil;', 'the plurality of heat-generating devices; and', 'the connector terminal;, 'a drive wiring that is installed to the circuit board and conducts the electric current amonga heat sink main body that absorbs the heat generated from the plurality of heat-generating devices; the connector terminal; and', 'one of the plurality of the heat-generating devices, the drive wiring, or the motor wiring;, 'a primary strut that extends integrally from the heat sink main body and supports the circuit board at a location betweena secondary strut that extends ...

Rotor for an Electric Machine and Electric Machine Having a Rotor

A rotor (1) for an electric machine (2) includes a rotor body with multiple poles. Multiple flux barriers (6.1, 6.2, 6.3, 6.4) are formed in the interior of the rotor body. The rotor (1) further includes at least one sensor element (3) configured for detecting at least one condition variable of the rotor (1), a signal processing unit (4) connected to the at least one sensor element (3) and configured for generating measured data from the detected condition variable of the rotor (1) and transmitting the measured data to a control device (5), and at least one induction coil (7) that includes at least one electrical conductor (8), is arranged in at least one flux barrier (6.1) of the rotor (1), and is configured for generating electrical energy from a leakage magnetic field in this flux barrier (6.1).