Lagerschild für eine elektrische Maschine, eine elektrische Maschine und Verfahren zum Herstellen einer solchen elektrischen Maschine

Lagerschild (10), insbesondere für eine elektrische Maschine (100), sowie Verfahren zum Herstellen einer elektrischen Maschine (100), mit einem radial äußeren Ringbund (22), der axial in ein zylindrisches Gehäuse (13) der elektrischen Maschine (100) einfügbar ist, und einem radial inneren Lagersitz (24) zur Aufnahme eines Radiallagers (19), und einem radial zwischen dem Ringbund (22) und dem Lagersitz (24) angeordneten Zwischenbereich (26), der eine höhere elastische Verformbarkeit in Radialrichtung (31) und/oder in Axialrichtung (32) aufweist, als der Ringbereich (22) und der Lagersitz (24).

Automotive alternator having a housing for reducing cooling fan noise

Electrical devices including a switched reluctance motor

COMBINED VEHICLE ALTERNATOR AND COMPRESSOR

generator line system.

Das erfindungsgemässe System enthält einen Generator mit einer spezifisch ausgebildeten Hauptleitung für die Stromleitung. Der Generator ist mit mehreren Feldspulen (76) ausgestattet. Ein erster Schleifring (66) ist eingerichtet, um mit einer Erregungsquelle (64) gekoppelt zu sein. Eine erste Hauptleitung ist eingerichtet, um einen Strom durch die mehreren Feldspulen (76) zu leiten. Die erste Hauptleitung weist ein erstes und ein zweites Ende auf. Das erste Ende enthält einen ersten Schwanenhals, der mit den mehreren Feldspulen axial gekoppelt ist. Das zweite Ende ist konfiguriert, um mit einem ersten radialen Anschluss des Generators axial gekoppelt zu sein.

generator line system.

Das erfindungsgemässe System enthält einen Generator mit einer spezifisch ausgebildeten Hauptleitung für die Stromleitung. Der Generator ist mit mehreren Feldspulen (76) ausgestattet. Ein erster Schleifring (66) ist eingerichtet, um mit einer Erregungsquelle (64) gekoppelt zu sein. Eine erste Hauptleitung ist eingerichtet, um einen Strom durch die mehreren Feldspulen (76) zu leiten. Die erste Hauptleitung weist ein erstes und ein zweites Ende auf. Das erste Ende enthält einen ersten Schwanenhals, der mit den mehreren Feldspulen axial gekoppelt ist. Das zweite Ende ist konfiguriert, um mit einem ersten radialen Anschluss des Generators axial gekoppelt zu sein.

Ceiling fan motors

An inside-out ceiling fan motor has a stator mounted to a downrod with an annular array of stator coils positioned about a rotor axis of rotation. A rotor is rotatably mounted about the stator. The rotor has a plurality of vanes spaced along the rotor periphery and canted at an angle of attack to a plane of rotor vanes rotation oriented normally to the rotor axis of rotation to scoop ambient air into the rotor during fan operation through the stator coils to cool them.

ELECTRIC DRIVE DEVICE AND ELECTRIC POWER STEERING DEVICE

On the opposite side to an output of a rotation shaft of an electric motor, a ventilation hole communicating between an electronic control unit (ECU) housing space and an electric motor housing space is formed to an end surface wall of a motor housing separating the respective housing spaces. The ventilation hole has a waterproof ventilation part that suppresses water passing but permits the passage of air and water vapor. This structure eliminated the influence of flying rocks and muddy water from the external environment, and suppresses for a long period of time the internal pressure fluctuation of the ECU housing space and the penetration of water into the housing space. Therefore, the internal pressure fluctuation of the housing space for the ECU and the penetration of water into the housing space for the ECU can be suppressed over a long period of time. 112.-. (canceled)13. An electric drive device comprising:a motor housing in which an electric motor for driving a mechanical system control element is accommodated;an end surface portion of the motor housing, the end surface portion being formed on an opposite side to an output portion of a rotation shaft of the electric motor; andan electronic control unit for driving the electric motor, which is accommodated in a housing space formed by a cover attached to the end surface portion, and which is disposed so as to be adjacent to a side of the end surface portion,wherein the end surface portion of the motor housing, which separates the housing space for the electronic control unit and a housing space for the electric motor is formed with a ventilation hole communicating between the housing space for the electronic control unit and the housing space for the electric motor, and a waterproof ventilation part which suppresses passage of water and permits passage of air and water vapor is provided to the ventilation hole.14. An electric drive device comprising:a motor housing in which an electric motor for driving a ...

THREE-PHASE BRUSHLESS FAN

A three-phase brushless fan is disclosed. In the three-phase brushless fan, an outer shell member includes an axis part, and winding columns are disposed around the axis part, and the rotating module includes a fan, an axis coupling part pivoted to the axis part, and a magnetic element having south and north magnetic portions; a circuit board electrically connected to coils formed by winding a conductive wire on the winding columns. The number of the coils is three or a multiple of three, and the number of the coils is not equal a total amount of the south and north magnetic portions. As a result, winding the conductive wire to form the multiple coils can omit the operation of placing coils on the circuit board and save labor cost in welding two head ends of conductive wires on the circuit board one by one.

Rotor and motor having an insulator for rotor teeth

Provided is a rotor including a rotor core, a plurality of teeth disposed at an outer side of the rotor core, and an insulator configured to surround the teeth wherein the teeth are detachably coupled to the rotor core, the insulator includes a body configured to surround the teeth, and a blade configured to protrude from at least one of an upper surface and a lower surface of the body, and thereby the number of manufacturing components is reduced and manufacturing costs and the number of manufacturing processes are reduced.

Air-cooling system for portable generator

Devices, systems, and methods to air-cool a portable generator are disclosed. The devices include various air ducts to direct airflow over heated components within a cabinet of the portable generator to cool the components by convection. A damping fan draws ambient temperature air into the cabinet and directs the air into channels of an outflow duct.

Component for a power generation system

ELECTRICAL DEVICES INCLUDING A SWITCHED RELUCTANCE MOTOR

Electrical devices including a switched reluctance motor

FAN MOTOR

A fan motor includes: a motor including a stator and a rotor, a motor housing accommodating the motor, a bearing case disposed at a lower portion of the motor housing, an impeller coupled to a rotary shaft of the motor, a vane structure disposed at a lower side of the impeller and configured to guide air, and a lead cable connector provided in the bearing case. The stator of the motor includes a core and a coil that is wound on the core, and the lead cable connector is connected to a lead cable of the coil of the stator.

High power battery-powered system

An electrical combination, a motorized device system, a motor assembly, a battery pack, and operating methods. The combination may include an electrical device including a device housing, a load supported by the device housing, the load being operable to output at least about 1800 watts (W), and a device terminal electrically connected to the load; a battery pack including a pack housing, battery cells supported by the pack housing, the battery cells being electrically connected and having a nominal voltage of up to about 20 volts, and a pack terminal electrically connectable to the device terminal to transfer current between the battery pack and the electrical device; and a controller operable to control the transfer of current.

ПЕРЕДВИЖНОЕ УСТРОЙСТВО ДЛЯ ВЫРАБОТКИ ЭЛЕКТРОЭНЕРГИИ НА ЖЕЛЕЗНОЙ ДОРОГЕ

Настоящее изобретение относится к передвижному устройству для выработки электроэнергии на железной дороге. Технический результат заявленного изобретения заключается в получении более компактной конструкции и обеспечении лучшей устойчивости топливных баков. Технический результат достигается тем, что заявленное изобретение включает в себя корпус (20), две дизель-генераторные установки (80), устройство для подачи топлива (100), систему противопожарной защиты (110), электрическое устройство (90) и два устройства для отвода воздуха (70). Причем две дизель-генераторные установки (80), устройство для подачи топлива (100), система противопожарной защиты (110), электрическое устройство (90) и две установки для отвода воздуха (70) расположены в полости корпуса (20). Корпус (20) включает основание (20а), две торцевые стенки (20b), две боковые стенки (20с) и верхнюю крышку (20d). Кроме того, устройство содержит топливный бак (22), закрепленный на основании (20а) болтами, имеет U-образное поперечное ...

Motorgenerator

A stator core

Axial flux machine

Electromechanical device

A pump such as a vehicle air conditioner compressor has a compressor shaft 23, a continuously engine- driven flywheel 65 and means such as an electromagnetic clutch 17 for selectively coupling the flywheel to the shaft to operate the pump. The flywheel also provides a permanent magnet field 67 which field rotates with the flywheel and induces in the windings 29 of a relatively stationary annular stator assembly 25 an electric voltage in response to the rotating magnetic field. The pump shaft, annular clutch actuating coil 31, annular stator assembly and permanent magnet flywheel are all generally concentrically disposed and in the order stated. The flywheel is driven any time that the engine is running thereby inducing a voltage in the stator windings and that flywheel also drives the exemplary compressor 19 when the clutch is actuated. ...

Heatsink

A heatsink 100 having a surface 101 adjacent to a heat source, where several cavities 103 are formed within said surface. The cavities are open on a side of the surface away from the side adjacent to the heat source. There are also several projections 105, each projection extending from the surface adjacent to a corresponding cavity. Each cavity has a throat region 107 which is configured to restrict the flow of air between each respective cavity and the region between a corresponding pair of projections. The throat region may have a reduced width. The heatsink may comprise a proximal, central, and distal region. The cavities and projections may be extruded or cast. The cavities may comprise a plurality of parallel channels (113, figure 2) having a partially circular cross-section, the chord of which may form the throat section. The projections may diverge or taper with increasing distance from the surface and may comprise a plurality of cambered aerofoil fins or a plurality of pyramidal ...

Tool housing and motor exhaust management

A housing for a motorised tool where the housing that encloses a motor 112 has an exhaust outlet. The motor includes an exhaust port 134 that expels exhaust air out of the motor. The housing includes a housing exhaust port 116 and a deflector 126 that extends around the exhaust port and is proximal the motor exhaust port to direct air from the motor out of the housing. The deflector may be disposed at least partially within the motor exhaust port. The housing may also have an air inlet port 114. Also provided is a housing that is a clamshell type housing 104 and 106, each side having a housing exhaust port 116 and 124 and a deflector 126 corresponding to a motor exhaust 134, and an air inlet 114 and 122.

Automotive alternator having housing for reducing cooling fan noise

An alternator for an automotive vehicle is substantially composed of a housing, a rotor having a field coil and a stator having stator coils. A cooling fan is connected to an axial end of the rotor. The stator is fixedly disposed in the housing and the rotor is rotatably supported in the housing. According to rotation of the rotor, alternating current is generated in the stator coils, and the alternating current is rectified into direct current to charge an on-board battery. Inlet ports for introducing cooling air into the housing are formed between spokes formed on an axial end wall of the housing. The spokes are slanted in the direction opposite to the rotational direction of the rotor relative to the radial direction to thereby reduce airflow noise generated around the spokes.

HEAT DISSIPATION METHOD FOR COMPLETE GENERAL-PURPOSE MACHINE

The present invention relates to the technical field of heat dissipation of a complete general-purpose machine, comprising: dividing an inner cavity of a housing of a general-purpose machine generator into a low-temperature zone and a high-temperature zone, wherein an end portion of the air deflector is close to a device mounted on the inner wall of the housing, and has a gap for communicating the low-temperature zone and the high-temperature zone with a component mounted on the inner wall of the housing, and guide the air flow to enter from an air inlet of the low-temperature zone of the housing to firstly flow through a heat-generating assembly located in the low-temperature zone, then enter from the gap into the high-temperature zone to flow through the heat-generating assembly located in the high-temperature zone, and then flow out from an air outlet to cool the internal members of the general-purpose machine generator.

Stator for an electric motor and cooling thereof

A stator and a rotor suitable for use in an electric motor or generator. The stator comprises a plurality of stator cons and a support for holding the coils around a rotor of the motor. A cylindrical sleeve is mounted radially inwardly on the support to form a barrier in use between cooling fluid passing over the coils and a rotor located within the stator. The rotor comprises a hub, a plurality of rotor segments, and a plurality of permanent magnets. The segments are arranged around the hub in a ring, with the permanent magnets disposed between the segments. A radially outwardly facing exposed surface of each magnet is spaced radially inwardly from an outer cylindrical profile defined by the segments.

Air-cooling system for portable generator

Devices, systems, and methods to air-cool a portable generator are disclosed. The devices include various air ducts to direct airflow over heated components within a cabinet of the portable generator to cool the components by convection. A damping fan draws ambient temperature air into the cabinet and directs the air into channels of an outflow duct.

BLOWER DEVICE

MOTOR FOR WASHING MACHINE AND WASHING MACHINE HAVING THE SAME

ДИСКОВЫЙ СТАРТЕР-ГЕНЕРАТОР, ИНТЕГРИРОВАННЫЙ В ДВУХКОНТУРНЫЙ ТУРБОРЕАКТИВНЫЙ ДВИГАТЕЛЬ

Полезная модель относится к области электротехники, а именно к области стартеров-генераторов, интегрированных в авиационные двигатели. Технический результат заключается в снижении массогабаритных показателей стартера-генератора. Стартер-генератор содержит вал ротора, выполненный единым с валом авиационного двигателя, постоянные магниты и обмотку. Также содержит два диска для крепления постоянных магнитов, механически соединенных с валом ротора. Обмотка закреплена в статоре, который расположен в корпусе, установленном на опорах дискового стартера-генератора. 4 ил. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 206 951 U1 (51) МПК H02K 7/18 (2006.01) H02K 16/02 (2006.01) H02K 21/24 (2006.01) H02K 1/27 (2006.01) H02K 1/16 (2006.01) H02K 5/20 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (52) СПК H02K 7/1823 (2021.08); H02K 16/02 (2021.08); H02K 21/24 (2021.08); H02K 1/274 (2021.08); H02K 1/16 (2021.08); H02K 5/207 (2021.08) (21)(22) Заявка: 2021116732, 09.06.2021 09.06.2021 Дата регистрации: Приоритет(ы): (22) Дата подачи заявки: 09.06.2021 (45) Опубликовано: 04.10.2021 Бюл. № 28 (54) ДИСКОВЫЙ СТАРТЕР-ГЕНЕРАТОР, ИНТЕГРИРОВАННЫЙ В ДВУХКОНТУРНЫЙ ТУРБОРЕАКТИВНЫЙ ДВИГАТЕЛЬ (57) Реферат: Полезная модель относится к области авиационного двигателя, постоянные магниты и электротехники, а именно к области стартеровобмотку. Также содержит два диска для генераторов, интегрированных в авиационные крепления постоянных магнитов, механически двигатели. Технический результат заключается в соединенных с валом ротора. Обмотка снижении массогабаритных показателей стартеразакреплена в статоре, который расположен в генератора. Стартер-генератор содержит вал корпусе, установленном на опорах дискового ротора, выполненный единым с валом стартера-генератора. 4 ил. R U 2 0 6 9 5 1 (56) Список документов, цитированных в отчете о поиске: RU 2583837 C1, 10.05.2016. RU 2406829 C2, 20.12.2010. SU 201522 A1, 08.09.1967. US 2003102756 A1, 05.06.2003. RU ...

STEUEREINRICHTUNG ZUM ANSTEUERN EINES E-MOTORS

Luftgekühlter Motor

Electrical devices including a switched reluctance motor

A method of assembling a power tool, a power tool, a method of assembling an electrical device (100), and an electrical device (100) includes a switched reluctance motor (10). The electrical device is preferably a hand-held power tool, however, any type of electrical device that includes a switched reluctance motor may benefit from any number of aspects of the invention. In one independent aspect, the invention provides a construction that reduces tolerance stack-up. In another independent aspect, the invention provides a self-contained electronics package that plugs into a switched reluctance motor (10) to provide control operation of the switched reluctance motor (10). In another independent aspect, the invention provides enhanced cooling that increases the efficiency of the electrical device using a switched reluctance motor (10). In another independent aspect, the invention provides an encapsulated magnet that allows for contaminant free motor control over the life of the SR motor.

DYNAMOELECTRIC MACHINE

회전 전기 기기

... 회전 전기 기기 실시 형태의 과제는, 냉각성이 향상된 회전 전기 기기를 제공하는 데 있다. 실시 형태에 따르면, 회전 전기 기기는, 고정자 철심(24) 및 고정자 코일(26)을 갖는 고정자(12)와, 고정자 철심의 일단부면을 덮은 제1 브래킷(16)과, 고정자 철심의 타단부면을 덮은 제2 브래킷(18)과, 회전자(28)를 구비하고 있다. 고정자 철심의 외주에 마련된 제1 유로 형성부(40)는, 고정자 철심의 축방향의 일단으로부터 타단까지 연장되는 제1 유로(F1)와, 제1 유로의 직경 방향의 외측에 마련되어 고정자 철심의 축방향의 일단으로부터 타단까지 연장되는 제2 유로(F2)를 갖고 있다. 제1 브래킷은, 고정자 철심의 일단부면에 대향하는 개구단을 갖는 환상의 주위벽(16a)과, 고정자 철심의 일단부면과 간격을 두고 대향하는 저벽(16b)과, 주위벽의 일부로 구성된 제2 유로 형성부(48)를 갖고 있다. 제2 유로 형성부는, 외기 유로(RA) 및 내기 유로(RI)를 형성하고 있다.

Tampa, especialmente para geradores

ELECTRIC MOTOR

A first bracket in an electric motor includes an inflow path through which outside air flows inside, and an outflow path through which the air having flowed in flows outside. A stator core included in the electric motor includes a first ventilation path that is coupled with the inflow path and a second ventilation path that is coupled with the outflow path. A second bracket includes a third ventilation path that forms a flow path from the first ventilation path to the second ventilation path positioned symmetrically to the first ventilation path with respect to a plane containing a rotation axis. The air having flowed into the inside of the electric motor through the inflow path passes, in order, through the first ventilation path, the third ventilation path, and the second ventilation path, and flows out to the outside of the electric motor through the outflow path.

ELECTRIC MOTOR

A frame of an electric motor has inlet holes to allow ambient air to flow into an inside of the motor and outlet holes to allow the ambient air entering through the inlet holes to flow out to an outside of the motor. The motor includes a shaft, a rotor, a stator, a fan to rotate integrally with the shaft, and a guide. The guide is disposed outwardly of the fan in the radial direction and has a shape for suppressing foreign materials contained in the ambient air entering through the inlet holes from coming into contact with the stator and the rotor.

INDUCTION MOTOR

An induction motor is disclosed. The induction motor comprises a motor casing, fabricated in an irregular octagonal shape with a central open area. The motor casing is configured to house a cooling system within an outer wall and an inner wall of the motor casing. The cooling system comprises a plurality of interconnected cooling channels and a plurality of air ducts. The induction motor comprises a stator assembly housed within the central open area of the motor casing, a rotor assembly fitted inside the stator assembly and a shaft configured to be fitted to the rotor assembly. The induction motor also comprises a fan positioned on the first axial end of the induction motor. The fan is configured to assist inflow of air into the plurality of air ducts.

Rotary device with a fan mounted outside a housing to introduce external air into the housing

A rotary device includes a housing; an impeller provided in the housing; a rotor disposed at a rear of the impeller, and configured to rotate; a stator disposed to surround the rotor; a bearing at the rear of the impeller, and configured to relieve friction caused by rotation of the rotor while supporting the rotor when the rotor is rotated; and a fan mounted to an outside of the housing, and configured to introduce external air into an inside of the housing and, after the external air is heated while travelling on a cooling flow path, release the external air to the outside of the housing.

FAN MOTOR

A stator core

Electric motor drive assembly and its use in a hybridvehicle

MOTOR COOLING ARRANGEMENT

At least one cooling duct is provided for a motor that includes a frame. The cooling duct has a wall supported by the frame that, in turn, comprises an arcuate surface portion and a non-arcuate surface portion that together define a bore. A method of increasing the transfer of heat away from a motor is also presented.

MOTOR ASSEMBLY AND A CLEANER COMPRISING THE SAME

A motor assembly is disclosed. The motor assembly according to the present disclosure comprises: a motor having a rotary shaft; an impeller connected to the rotary shaft; a housing disposed between the impeller and the motor and surrounding the upper side of the motor; a diffuser for discharging air, which is suctioned by the impeller, along the outer surface of the housing; and a heat dissipation cover covering the outer surface of the motor, where the heat dissipation cover comprises: an inner cover disposed to be spaced apart from the outer surface of the motor and forming an inside-cover flow channel along which air flows through the spacing therebetween; and an outer cover having a diameter greater than that of the inner cover and forming an outside-cover flow channel through which air flows along the outer surface thereof.

ELECTRIC MACHINE WITH BAFFLE MEMBER FOR FILTERING AIR FLOW

An electric machine having a housing with the rotor and stator disposed within the housing. The housing defines at least one housing opening allowing the inflow of air into the housing. A baffle is mounted on the housing and controls the inflow of air into the housing opening. The baffle member defines an inlet in communication with the ambient air, an outlet in communication with the housing opening, and a passageway extending from the inlet to the outlet. The baffle defines at least one impact surface within the passageway for changing the direction of air flow between the inlet and the outlet and the baffle further defines a drain port wherein the passageway directs moisture collecting on the impact surface to the drain port where it is discharged from the baffle. The electric motor may be an axial flow air-cooled alternator having a fan for generating the air flow. 1. An electric machine comprising:a rotor operably coupled with a stator, the rotor being rotatable about an axis;a housing wherein the rotor and stator are disposed within the housing and the housing defines at least one housing opening allowing air to flow through the housing;a baffle mounted on the housing and controlling an inflow of air into the at least one housing opening, the baffle defining an inlet in communication with the ambient air, an outlet in communication with the at least one housing opening, and a passageway extending from the inlet to the outlet, wherein the inflow of air defines an airflow path that sequentially enters the baffle through the inlet, flows through the passageway, exits the baffle through the outlet and enters the at least one housing opening and wherein the baffle defines at least one impact surface within the passageway for changing a direction of the airflow path between the inlet and the outlet and the baffle further defines a drain port wherein the baffle is configured to direct moisture collecting on the impact surface to the drain port where the moisture is ...

Motor drive system and method

A motor drive and method of controlling a motor are provided. The motor drive includes a controller generating a motor reference voltage; a DC bus providing a DC voltage having a ripple; an inverter including power switches operable to convert the DC voltage into an AC motor voltage by modulating the power switches during a plurality of switching cycles, the AC motor voltage based on the motor reference voltage; a capacitor circuit coupled to the DC bus and having a maximum capacitance that is less than 10 microfarads per ampere of a rated current; and voltage prediction logic structured to: detect a voltage value corresponding of the ripple during each of the plurality of switching cycles; and modify the motor reference voltage during each of the plurality of switching cycles using the voltage value.

Automotive alternator having cooling-air-intake-window having uneven opening area along rotational direction

A stator having an armature winding and a rotor having a field winding are contained in an alternator housing. A cooling fan is connected to at least one axial end of the rotor, and a plurality of windows are formed in an axial end wall of the housing to face the cooling fan. A shroud surface facing the cooling fan is formed at a radial outside of each window. The opening of the window is so made that it gradually decreases along a rotational direction of the cooling fan, while the shroud surface area gradually increases along the same direction. In this manner, pressure changes in a space between the fan blades and the fan shroud are smoothened, and thereby noises generated by the cooling fan are effectively reduced.

Electric motor having an integrated cooling system and methods of cooling an electric motor

The present disclosure pertains to electric machines such as electric propulsion systems for aircraft that integrated cooling systems, and methods of cooling such an electric machine. Exemplary electric machines include an electric motor that has a stator, a rotor, and a drive shaft operably coupled to the rotor. Exemplary electric machines further include a motor cooling conduit that defines a pathway for conveying a cooling fluid through or around at least a portion of the electric motor, a casing assembly that circumferentially surrounds at least a portion of the electric motor, a casing assembly conduit integrally formed within at least a portion of the casing assembly which defines a pathway for conveying the cooling fluid through the at least a portion of the casing assembly, and a pump or compressor operably coupled to the drive shaft and configured to circulate the cooling fluid through the motor cooling conduit and the casing assembly conduit.

MOTOR MODULE AND VACUUM CLEANER

ЭЛЕКТРОДВИГАТЕЛЬ И ТРАНСПОРТНОЕ СРЕДСТВО С ЕГО ИСПОЛЬЗОВАНИЕМ

... 1. Электродвигатель, содержащий по меньшей мере два ротора, имеющих роторные валы, причем предусмотрены силовой выходной вал и понижающая силовая передача, которая соединяет указанные роторные валы с выходным валом. 2. Электродвигатель по п.1, содержащий несколько комбинаций ротора со статором, причем указанные комбинации ротора со статором расположены в виде комплектов вокруг указанного выходного вала, при этом предусмотрены средства для соединения указанных комбинаций друг с другом. 3. Электродвигатель по п.1, содержащий по меньшей мере два ротора и один статор, причем статор имеет цилиндрические полости для установки роторов. 4. Электродвигатель по п.3, содержащий один статор, имеющий по меньшей мере две полости для приема роторов, причем указанный статор имеет центральный канал, в котором установлен выходной вал, при этом полости для установки роторов смещены друг относительно друга вокруг указанного выходного вала. 5. Электродвигатель по п.4, у которого указанный статор имеет четыре ...

Elektromotor mit Lüfterhaube

Elektromotor mit Lüfterhaube,wobei ein Deckel mit der Lüfterhaube lösbar verbunden ist, insbesondere zum Abdecken einer Ausnehmung der Lüfterhaube.

Elektrische Maschine

Die Erfindung betrifft eine elektrische Maschine (2) mit einem Rotor (10), einem Stator (20) mit umfänglich angeordneter Statorwicklung (22) aus einem elektrisch leitenden Material und einem Gehäuse (30) mit einer ersten und einer zweiten sich in Umfangsrichtung erstreckenden Öffnung (32, 34). Stirnseitig am Rotor (10) ist ein Lüfter (40) angeordnet, der drehfest mit dem Rotor (10) verbunden ist und sich radial erstreckende Flügel (42) aufweist. Vom Lüfter (40) wird ein Kühlmedium (46) über die erste Öffnung (32) angesaugt, über die zweite Öffnung (34) ausgeblasen und zwischen der ersten und weiten Öffnung (32, 34) zügig zumindest an Teilbereichen der Statorwicklung (22) vorbeigefördert.

Automotive alternator having a housing for reducing cooling fan noise

Protecting cap, especially for generators

Two compartment motor

A motor including a first compartment, a second compartment, a frame, a first end shield, a second end shield, an armature shaft, a stator winding, an armature, a cover, and a switchboard is provided. The first and second end shields are disposed adjacent opposing ends of the frame to define the first compartment. The armature shaft extends between the first and second end shields. The stator winding is supported by the frame within the first compartment. The armature is rotatably supported by the end shields and disposed within the first compartment adjacent the stator winding. The cover includes a first end, a peripheral edge, and ventilation openings. The cover peripheral edge is mounted to the motor adjacent the second end shield. The ventilation openings include a plurality of openings positioned along at least part of the cover peripheral edge and in the cover first end. The switchboard is mounted to the second end shield to define the second compartment between the switchboard and ...

COMPRESSOR COMPRISING A FLOW GUIDE DISPOSED WITHIN AN AIR INLET

A compressor has a stator assembly, a rotor assembly, and a housing within which the stator assembly and the rotor assembly are located. The housing has a first end, a second end, and an air inlet disposed between the first and second ends. The compressor has a flow guide disposed within the air inlet. The flow guide is configured to split air flowing through the air inlet in use into a first airflow toward the first end of the housing and a second airflow toward the second end of the housing.

Centrifugal Pump With a Drive

A pump assembly is provided with a coupling unit which connects a pump casing to a motor casing. The motor casing includes at least one cooling body coupled to a fan-side bearing arrangement which supports a bearing supporting a shaft of a rotor of the motor. Preferably the fans-side bearing arrangement and the at least one cooling body are formed integrally, with a portion of the cooling body having passages formed by cooling fins which support a base for motor control electronics. The air flow generated by a fan at the fan-side of the motor at least in part is directed from the region of the fan into the cooling body passages to cool one or moth of the motor electronics and the motor's stator.

MAGNETIC GEARED ELECTRICAL MACHINE, POWER GENERATION SYSTEM, AND DRIVE SYSTEM

A magnetic geared electrical machine includes: a stator; a magnetic pole piece rotor including a plurality of magnetic pole pieces disposed radially inward of the stator; an inner rotor including a plurality of rotor magnets, disposed radially inward of the plurality of magnetic pole pieces, and configured to rotate at a higher speed than the magnetic pole piece rotor; and a fan for cooling at least one of the stator, the magnetic pole piece rotor, or the inner rotor. The magnetic pole piece rotor further includes a power transmission shaft disposed on one side in an axial direction relative to the plurality of magnetic pole pieces, and configured to transmit rotational power to and from an external device. The fan is disposed in the inner rotor on an opposite side to the power transmission shaft with the rotor magnet therebetween in the axial direction.

COOLING ARRANGEMENTS FOR BATTERY-POWERED STAND-ALONE MOTOR UNIT

GENERATOR AND WIND TURBINE

Generator (10), insbesondere Generator (10) für eine Windenergieanlage (100), der Generator (10) aufweisend: zwei Stirnseiten (17, 18) zwischen denen sich ein Generatorinnenraum (16) des Generators (10) in einer Axialrichtung (A) erstreckt; wobei die zwei Stirnseiten (17, 18) aufweisen: eine Innenseite, die einem Generatorinnenraum (16) des Generators (10) zugewandt ist, und eine der Innenseite (12) gegenüberliegende Außenseite (13), die einer Umgebung (E) des Generators (10) zugewandt ist, mindestens einen Luftauslasskanal (14) und mindestens einen Lufteinlasskanal (15), die sich zwischen der Innenseite (12) und der Außenseite (13) erstrecken und jeweils den Generatorinnenraum (16) strömungstechnisch mit der Umgebung (E) verbinden, dadurch gekennzeichnet, dass der mindestens eine Luftauslasskanal (14) und der mindestens eine Lufteinlasskanal (15) an derselben Stirnseite (17, 18) des Generators (10) angeordnet sind.

SYNCHRONOUS ELECTRICAL MACHINE, AND ASSOCIATED PROPULSION ORIENTED DRIVE DEVICE, BOAT, AND METHOD FOR COOLING SUCH A MACHINE

The synchronous electrical machine (8) comprises a machine housing (26) including a stator (27) and a rotor (28) lodged in the stator, the rotor being separated from the stator by an airgap (29), the machine housing being configured to dissipate thermal losses generated by the stator. The stator comprises stacks (30) of laminations (300) and at least one channel (36) extending along a longitudinal direction of the stator and formed in the laminations, two adjacent stacks of laminations being separated by pins or spacers (31) to form an extraction duct (32) connected to the channel, the machine housing further comprising an extraction opening (21) so that a fluid injected in the air gap at the ends of the stator flows in the extraction duct and in the channel, and is extracted from the machine through the opening to cool the stator and the rotor.

ROTATING MACHINE WITH COOLING FAN

Kraftfahrzeugwechselstrommaschine mit einem Kühllufteinlaßfenster, welches einen ungleichmäßigen Öffnungsbereich entlang der Drehrichtung besitzt

Fahrzeug-Wechselstrommaschine (1) mit: einem Gehäuse (4); einem Stator (2), der in dem Gehäuse aufgenommen ist, wobei der Stator einen Statorkern (22) und eine Ankerwicklung (21) aufweist, die auf den Statorkern gewickelt ist; einem Rotor (3), der drehbar in dem Gehäuse gehaltert ist, und der innerhalb des Stators angeordnet ist, wobei der Rotor einen Rotorkern (32) und eine Feldwicklung (33) enthält, die um den Rotorkern gewickelt ist; und einem Kühllüfter (36), der wenigstens an einem axialen Ende des Rotorkernes befestigt ist, um sich koaxial mit dem Rotor zu drehen, wobei der Kühllüfter eine Vielzahl an Lüfterflügeln (361) enthält, wobei das Gehäuse eine Vielzahl von Kühlluft-Einlaßfenstern (411) enthält, die in einer axialen Endwand (412) des Gehäuses ausgebildet sind, so daß die Fenster (411) dem Kühllüfter gegenüberliegen, wobei jedes Fenster (411) in einem Raum zwischen zwei benachbarten Speichen (416) ausgebildet ist, welche eine innere Umfangswand (429) des Gehäuses und eine äußere ...

Elektrische Maschine, vorzugsweise Drehstromgenerator für Kraftfahrzeuge

Die Erfindung betrifft eine elektrische Maschine, vorzugsweise einen Drehstromgenerator (10) für Kraftfahrzeuge, mit einer Gleichrichter-Baueinheit (11) an einem Lagerschild (23) der Maschine, in welchem ein umlaufender Lüfter (28) angeordnet ist, wobei die Gleichrichter-Baueinheit auf einem wärmeleitenden, ringförmigen Abschnitt (23a) des Lagerschildes (23) wärmeleitend befestigt ist und wobei der ringförmige Abschnitt einen mit Durchbrüchen (27) versehenen Bereich (23b) des Lagerschildes (23) umgibt, durch welche die vom Lüfter (28) angesaugte Kühlluft hindurchströmt. Die Minus- und Plusdioden einer jeden Diodenbrücke der Gleichrichter-Baueinheit sind mit je einem dazwischen eingefügten, eingangsseitigen Anschlussteil zwischen einer gemeinsamen Plus- und Minus-Anschlussplatte (15, 17) angeordnet und bilden mit ihnen die Gleichrichter-Baueinheit.

Modular electronic package in a switched reluctance motor

A self contained electronics package is arranged to plug into the motor via terminal blocks 192 to provide control operation of the motor so as to be electrically and physically connected to the motor. The package may include first and second circuit boards 169,172 carrying low voltage components (including rotor position/speed sensors e.g. hall effect devices 193) and power components respectively, the boards being spaced apart to reduce electrical interference.. A third printed circuit board may carry components to determine temperature in the region of the heat sink 176. The circuit boards are mounted to the rear bell by means of fasteners engaging apertures in the bell (276 and 265 Fig 12), said bell supporting the rotor shaft and substantially seals the electronic package components from the motor.

Enhancements to cooling means for axial flux generations

회전 전기 기기

... 실시 형태에 따르면, 회전 전기 기기는, 샤프트(30) 및 회전자 철심(32)을 갖는 회전자(16)와, 회전자 철심의 주위에 배치된 고정자 철심(24)과, 고정자 코일(28)을 갖는 고정자(14)와, 회전자 및 고정자를 덮는 외측 케이스(18)와, 외측 케이스 내에서 회전자 철심의 축방향의 일단부측에 마련되고, 고정자 철심의 내경보다도 큰 최대 직경을 갖는 제1 냉각 팬(FA)과, 외측 케이스 내에서 회전자 철심의 축방향의 타단부측에 마련되고, 고정자 철심의 내경보다도 작은 최대 직경을 갖는 제2 냉각 팬(FB)과, 고정자 철심의 외주를 따라 축방향으로 연장되는 유로와 유로(CH)에 개방되는 배기구(44)를 갖는 통풍 덕트(40)를 구비하고 있다. 유로는, 제1 냉각 팬측에서 외측 케이스 내의 공간에 연통하는 제1 단부(40a)와 제2 냉각 팬측에서 외측 케이스 내의 공간에 연통하는 제2 단부(40b)를 갖고, 배기구는, 제1 단부와 제2 단부의 중간에 대하여 제2 단부측에 축방향으로 어긋나서 위치하고 있다.

CAST HOUSING FOR LARGE ELECTRIC MOTOR WITH REINFORCEMENT COMPONENTS

ELECTRIC MOTOR

An electric motor includes an impeller, a stator assembly, a rotor assembly, an inner flow path, and a bypass flow path. The impeller creates a flow of air introduced into the housing. The stator assembly is accommodated inside the housing. The rotor assembly is rotatably mounted inside the stator assembly. The bypass flow path is defined between an inner side of the housing and an outer side of the stator assembly, allowing the air to bypass the stator assembly along the bypass flow path. This configuration may result in minimizing flow resistance and flow loss of the air passing through the inner flow path of the electric motor.

MOTOR CONTROL DEVICE AND ROBOT SYSTEM

Rotierende elektrische Entlüftungsmaschine

Generator cover hood e.g. for IC engine, has link with outer circumference with central axis of different direction than air path center line

The suction branch (19) with the air inlet port (40) forms an air path (22) and has a link (25) for a further suction element, such as a hose etc. The link outer circumference (46) has a central axis (49) of a different direction than the air path center line (52) in the link region. Preferably the central axis and the air path center line intersect. The air path may be arcuated or conical tapering to the center of the cover hood (16).

A stator core

Motor cooling arrangement

Ceiling fan motors

An inside-out ceiling fan motor has a stator mounted to a downrod with an annular array of stator coils positioned about a rotor axis of rotation. A rotor is rotatably mounted about the stator. The rotor has a plurality of vanes spaced along the rotor periphery and canted at an angle of attack to a plane of rotor vanes rotation oriented normally to the rotor axis of rotation to scoop ambient air into the rotor during fan operation through the stator coils to cool them.

ELECTRICAL MACHINE

An electrical machine has a stator with a stator body supporting an electrical stator and a rotor. The rotor is supported by bearing including a radial bearing section forming a radial gas bearing and an axial bearing section forming an axial gas bearing, the stator side parts of these bearing sections being a stator side radial bearing part and a stator side axial bearing part that are rigidly connected to one another and together form a stator bearing structure. The stator side radial bearing part is a bushing, and is radially surrounded by a cooling body. The bushing is connected to the cooling body by an elastic support comprising a thermally conducting filler. 1. An electrical machine comprising a stator with a stator body supporting an electrical stator and a rotor , the rotor being supported by means of a bearing comprising a radial bearing section forming a radial gas bearing and an axial bearing section forming an axial gas bearing , the stator side parts of these bearing sections being a stator side radial bearing part and a stator side axial bearing part which are rigidly connected to one another and together form a stator bearing structure ,wherein the stator side radial bearing part is a bushing,and wherein the bushing is radially surrounded by a cooling body, and the bushing is connected to the cooling body by an elastic support comprising a thermally conducting filler.2. The electrical machine of claim 1 , wherein the thermally conducting filler is in contact with both the bushing and with the cooling body along a section of the axial length of the bushing in which the radial gas bearing is present.3. The electrical machine of claim 1 , wherein the bushing is radially surrounded by the cooling body and thermally coupled to the cooling body through the thermally conducting filler for at least 20% of the axial length of the bushing.4. The electrical machine of claim 1 , wherein the stator bearing structure is mounted to other parts of the stator by the ...

Electric machine with improved cooling system, and method of cooling an electric machine

An electric machine includes a housing defining an axis and having a coolant port disposed in an axial center of the housing, and a cylindrical stator surrounded by the housing and having a stator body in the form of a plurality of stacked laminations, with the stator having opposite axial ends terminating in winding heads. The housing and/or the stator is constructed to have cooling channels which extend in an axial direction and communicate with the coolant port to allow a flow of coolant from the coolant port via the cooling channels to the winding heads, or in opposite direction from the winding heads via the cooling channels to the cooling port.

Electric working machine

An electric working machine capable of efficiently cooling components disposed inside, as well as simplifying assembling work and reducing man-hours and production cost. A motor, control board for controlling the motor, rod fixture secured to the front side of the motor, and air guiding partitioning member secured to the rear side of the motor form a motor assembly. The air guiding partitioning member includes a partitioning plate hermetically partitioning between air exhaust and intake ports provided with a predetermined interval longitudinally in the body casing. The partitioning plate has an air guiding window for delivering cooling air taken in from the air intake port to an opening for sucking air on the front side of the motor through a space between the motor and body casing. The control board is disposed on the rear side of the partitioning plate.

Drive, comprising an electric motor with a brake, a fan cowl, and a rod for manually actuating the brake, and process for manufacturing a drive

A drive includes an electric motor with a brake and a fan cowl. The fan cowl is connected to a housing, in particular to a stator housing part, of the electric motor in a detachable manner. A rod is able to be passed through a cover part, which projects through a recess, in particular a recess arranged in the form of a slot, in the fan cowl.

Elektrische Maschine für ein Verdichter und/oder Turbine

Die Erfindung betrifft eine elektrische Maschine (10) für einen Verdichter (2) und/oder eine Turbine (3), mit einer in einem Gehäuse (6) drehbar gelagerten Welle (5), an welcher ein Rotor (11) drehfest angeordnet ist, mit einem gehäusefesten und koaxial zu dem Rotor (11) angeordneten Stator (12), der zumindest eine mehrphasige Antriebswicklung zur Erzeugung eines Antriebsmagnetfelds sowie mehrere radial nach innen in Richtung des Rotors (11) vorstehende Statorzähne (15) aufweist, und mit einer den Rotor (11) stromaufwärts überdeckenden Abdeckkappe (18), an die sich eine koaxial zu dem Rotor (11) angeordnete Hülse (21) anschließt, welche den Rotor (11) umfangsseitig vollständig und axial zumindest abschnittsweise umgibt, wobei die Hülse (21) radial beabstandet zu dem Rotor (11) ist und wobei der Rotor (11) eine axial aus der Hülse (21) zu dem Verdichter (2) und/oder der Turbine (3) herausgeführte und drehfest mit der Welle (5) verbundene Rotorwelle (25) aufweist, an welcher zumindest ein ...

Axial flux machine

Rotor 104a is air cooled by impellor blades 140 located on the opposite side of the rotor to the stator. Impellor cover 142 covers the impellor blades defining air channels between adjacent blades. The air channels have a radially inward inlet 14, and a radially air outlet 146 relative to the impellor blades such that as the rotor turns, the air is drawn through the air channel. A rotor enclosure 148 may be present, air ducting 150,152 may be used to guide air to the air inlet 144, and from the air outlet 146 to the outside of the enclosure. Heat from the second rotor 104b is transferred by conduction to the first rotor and additionally the coolant air from the outlets 146 may be directed to help cool the second rotor.. Alternatively both rotors may have impellors (fig 11 not shown). As shown in fig 13, the second rotor 404b may be directly supported by the first rotor 404a rotor so as to form a cup shape around the stator Cooling air may be circulated back to the inlet via a heat exchanger ...

Electric machine, especially an alternator for motor vehicles

The invention relates to an electrical machine, preferably a rotary-current generator (10) for motor vehicles, having a rectifier unit (11) on a bearing plate (23) of the machine, in which bearing plate a rotating fan (28) is disposed; the rectifier unit is secured in heat-conducting fashion to a heat-conducting annular portion (23a) of the bearing plate (23), and the annular portion surrounds a region (23b) of the bearing plate (23) that is provided with openings (27) through which the cooling air aspirated by the fan (28) flows. The negative and positive diodes of each diode bridge of the rectifier unit are disposed, with an input-side connection part inserted between them, between a common positive and negative connection plate (15, 17) and with them forms the rectifier unit.

CONTROL DEVICE FOR CONTROLLING AN ELECTRIC MOTOR

A control device for controlling an electric motor of an electrical device may include a flat plate and a power electronics. The plate may extend in a plate plane. The power electronics may include a plurality of electronic components arranged and interconnected on the plate. The power electronics may have at least one electronic power component that produces waste heat during operation. The at least one electronic power component may be arranged such that a body of the at least one electronic power component penetrates the plate plane. A plurality of power connections, via which the at least one electronic power component may be interconnected to the plurality of electronic components, may be arranged at an edge of the plate.

ELECTRIC DRIVE DEVICE AND ELECTRIC POWER STEERING DEVICE

Air circulation passages connect an accommodation space of an electronic control unit to the outside to circulate air to buffer internal pressure fluctuations. The accommodation space side of the air circulation passages is formed as a divided air circulation passage with a plurality of passages, a cooling object member is arranged to come in thermal contact with air flowing through the divided air circulation passage, and the total cross-sectional area of the divided air circulation passage is smaller than the cross-sectional area of the air circulation passages that are not divided. Because the accommodation space of the electronic control unit is connected to the outside, internal pressure fluctuations can be buffered, and increasing the flow velocity of the air flowing through the divided air circulation passage on the accommodation space side of the air circulation passages allows heat inside the accommodation space to be efficiently radiated to the outside.

MARINE DRIVE HAVING VENTED LOWER UNIT

A marine drive is for propelling a marine vessel in a body of water. The marine drive comprises a motor housing defining a motor cavity; a motor disposed in the motor cavity; a propulsor shaft extending from the motor housing, wherein the motor is configured to cause rotation of the propulsor shaft; a propulsor which is rotated by the propulsor shaft to create a thrust force in the body of water; and a vent conduit having a first end connected to the motor cavity and a second end which vents the motor cavity to atmosphere.

Cooling of an electric motor

An electric machine comprises a housing (9) enclosing at least a rotor (5) and stator windings (4) of a stator (2) of the machine and comprising an end shield (10, 11) at each axial end of the machine. The housing has an air inlet (15) at a first axial end (12) of the machine and a peripheral air outlet (16) at the other, second axial end (13) of the machine. A fan (17) is arranged in the housing at said second axial end to rotate with the rotor for creating a flow of air through the housing from the air inlet to the air outlet for cooling parts of the electric machine. An air outlet channel (19) conducts air radially leaving the fan to the air outlet (16). This channel has a first channel portion with first walls (21) directing air leaving the fan (17) axially back in the direction of the first axial end (12) and a second channel portion with second walls (23) redirecting the air flow from the fan to assume a major radial component.

Electric Motor Having Improved Cooling

An electric motor (1), in particular, an external rotor motor, has a stator (10) with a stator core (11), a non-rotatably attached shaft (20), that extends in the axial direction (A) of the motor, and a rotor bell (30), rotatably arranged relative to the non-rotatable shaft (20). The rotor bell (30) has cooling ribs in an open, spoke-like design rotatably mounted on the shaft (20) by at least one first stator-side bearing shield (31). A cooling device (40) is arranged between and connects the shaft (20) and the stator core (11). The cooling device (40) has a plurality of axial flow openings (41) arranged in the circumferential direction that causes cooling when the motor rotates during operation.

COOLING OF ACTIVE ELEMENTS OF ELECTRICAL MACHINES

The present disclosure relates to electrical machines, cooling systems and methods for cooling active elements of electrical machines. More in particular, the present disclosure relates to cooling systems and methods for cooling active rotor and/or stator elements of a generator of a wind turbine, e.g. of a direct drive wind turbine. A cooling method comprises supplying a cooling fluid to an air gap through one or more primary inlets of an electrical machine for cooling a plurality of active elements of a rotor of the electrical machine and/or a plurality of active elements of a stator of the electrical machine separated by the air gap. The method further comprises reversing a direction of flow of the cooling fluid such that the cooling fluid is extracted from the electrical machine through one or more primary inlets.

Electric compressor

An electric compressor includes a housing, an electric motor, and an inverter. The housing includes a motor chamber. The electric motor includes a stator that includes a stator core, a plurality of first coils, a plurality of second coils, and a plurality of third coils. The first coils are connected in series, the second coils are connected in series, and the third coils are connected in series. One of the first coils that is located electrically closest to the first phase is referred to as a first specific coil, one of the second coils that is located electrically closest to the second phase is referred to as a second specific coil, and one of the third coils that is located electrically closest to the third phase is referred to as a third specific coil. The first to third specific coils are disposed above the shaft center of the drive shaft.

Rotating machine with wind guide member

The present invention relates to a rotating machine and a hoist. An object of the present invention is to provide a rotating machine and a hoist with improved cooling performance. A motor (10) includes: a stator (11) and a rotor (12); a rib part (12d) that rotates in accordance with rotation of the rotor (12), and a wind guide member (16) that guides wind taken in from a ventilation inlet (15aa) by rotation of the rib part 12d to a ventilation outlet (15ab).

Consolidated stator laminations

This disclosure provides a consolidated electric motor stator lamination for multiple enclosure types such that a single stator assembly can be used for different classifications of an electric motor. Each layer of the stator lamination includes external features that, when combined with the external features of the other layers in the lamination, can be adapted to conform the electric motor to one of a plurality of enclosure types. The external features include retaining features for one or more covers, fins, and a profile configured to accept cooling tubes. In various embodiments, a single consolidated stator lamination assembly can be adapted to provide a motor having at least two of an open-drip proof (ODP), a totally enclosed fan cooled (TEFC), or a totally enclosed water cooled (TEWC) enclosure classification.

GENERATOR AND WIND TURBINE

Generator (10), insbesondere Generator (10) für eine Windenergieanlage (100), der Generator (10) aufweisend: ein Generatorgehäuse aufweisend: eine Innenseite, die einem Generatorinnenraum (16) des Generators (10) zugewandt ist, und eine der Innenseite (12) gegenüberliegende Außenseite (13), die einer Umgebung (E) des Generators (10) zugewandt ist, mindestens einen Luftauslasskanal (14), der sich zwischen der Innenseite (12) und der Außenseite (13) erstreckt, wobei der mindestens eine Luftauslasskanal (14) den Generatorinnenraum (16) strömungstechnisch mit der Umgebung (E) verbindet, dadurch gekennzeichnet, dass mindestens ein Schalldämpfer (40) an dem Generator (10) angeordnet ist.

COOLING DEVICE OF AN ELECTRIC MOTOR, ASSOCIATED MOTORIZATION ASSEMBLY AND ASSOCIATED VEHICLE

ROTATING ELECTRIC MACHINE

Gebläseeinheit für einen Fahrzeugsitz

Ein Fahrzeugsitz mit einem Sitzboden und einem Bodenkissen und einer mit dem Bodenkissen gekoppelten Rückenlehne, die ein Rückenkissen aufweist. Wenigstens eines von dem Bodenkissen und dem Rückenkissen definiert einen Durchgang. Der Fahrzeugsitz weist weiterhin eine Gebläseeinheit auf, die mit einem von dem Sitzboden und der Rückenlehne gekoppelt ist. Die Gebläseeinheit umfasst ein Gehäuse und einen Stator, der mit dem Gehäuse gekoppelt ist und der eine Vielzahl von Antriebsspulen aufweist. Die Gebläseeinheit umfasst ferner einen mit dem Gehäuse um eine Drehachse drehbar gekoppelten Rotor, wobei der Rotor eine Vielzahl von Permanentmagneten aufweist, die so angeordnet sind, dass sie einen auf die Antriebsspulen konzentrierten Fluss generieren. Die Gebläseeinheit umfasst ferner ein Flügelrad, das mit dem Rotor für eine Drehung um die Drehachse gekoppelt ist, um einen Luftstrom durch den Durchgang zu er-zeugen.

Electrical devices including a switched reluctance motor

Electrical devices including a switched reluctance motor

Axial flux machine

FAN MOTOR

A fan motor is disclosed, which comprises a motor including a stator and a rotor, a motor housing accommodating the motor, a bearing case arranged at a lower portion of the motor housing, an impeller connected to a rotary shaft of the motor, a vane structure disposed at a lower side of the impeller, guiding the air, and a lead cable connector connected to a lead cable of a coil of the stator and provided in the bearing case. 42a 22 24 242 224 222 4 32 42a 3 ...

Dual-rotor motor having heat dissipation

An electric motor may include an outer rotor and an inner rotor, with a stator, which carries the excitation coils, formed as a hollow cylinder and engaging in the pot-shaped outer rotor and being connected to the housing or to a part of the electric motor fixedly connected to the housing, and where the electric motor may further include a water cooling and an air cooling system.

Power Tool

A power tool includes a housing, a brushless motor, and a cover member. The housing has an air intake hole and an air exhaust hole formed therein, the housing having an inner surface. The brushless motor has an outer surface disposed in the housing, a first endface near the air intake hole, and a second endface near the air exhaust hole. The cover member covers at least one of the first endface and the second endface for preventing dust from entering the brushless motor. The inner surface of the housing and outer surface of the brushless motor define a circulation path providing communication between the air intake hole and the air exhaust hole.

Electric motor having an end frame

An electro-dynamic machine including a rotor shaft extending along an axis and a bearing rotatably supporting the rotor shaft for rotation about the axis. An inner housing has an outer surface and defines a bearing bore. The bearing bore receives and supports the bearing. An outer housing surrounds the inner housing. A plurality of non-radial ribs extends from the outer housing to the inner housing. The non-radial ribs are coupled to the inner housing substantially tangential to the outer surface.

Wind turbine rotary electric machine

A wind turbine rotary electric machine having a tubular body, in turn having a cylindrical wall; and a plurality of clips formed integrally with the cylindrical wall and configured so that each pair of facing clips defines a seat for housing an active sector.

Rotary electric machine, bearing attaching and detaching jig, and bearing replacement method

To provide a rotary electric machine including a stator iron core, a rotor including a lamination core that is arranged within the stator iron core and is constituted by laminating electromagnetic steel plates and iron core holders that cover both ends of the lamination core, a frame including a cylindrical portion that encloses the stator iron core and the rotor and a rotor-shaft supporting unit that extends in the direction of a rotor shaft and supports the rotor shaft, and cartridges that are detachably attached to the rotor-shaft supporting unit and rotatably support the rotor shaft, in which on the iron core holder and the iron core holder, recessed portions are circumferentially provided, into which end portions of jigs that are inserted through the rotor-shaft supporting unit to enable the cartridges to be detached and attached are fitted.

Voltage regulator device for a rotary electric machine, bearing for such a machine equipped with such a device and such a machine comprising such a bearing

A voltage regulator device for a rotary electric machine, notably an alternator and/or an alternator/starter of a motor vehicle, said regulator device ( 14 ) comprising a support ( 34 ) and one or more electronic components ( 28 ) able to play a part in controlling said electric machine, the support comprising a first part ( 60 ) on which the component or components is or are mounted, said first part having an edge ( 62 ) equipped with a brush holder ( 50 ) equipped with at least one housing, known as the brush housing, capable of housing a brush ( 15 ) for making an electrical connection with a rotor ( 3 ) of the electric machine possible. According to the invention, said device is configured to allow air to flow through said first part of the support, in contact with said brush holder. The invention also relates to an assembly of a device for rectifying the current produced by the electric machine and of such a regulator device, to a bearing of an electric machine equipped with such an assembly and to an electric machine equipped with such a bearing.

Power Tool

A power tool includes a housing, a brushless motor, and a cover member. The housing has an air intake hole and an air exhaust hole formed therein, the housing having an inner surface. The brushless motor has an outer surface disposed in the housing, a first endface near the air intake hole, and a second endface near the air exhaust hole. The cover member covers at least one of the first endface and the second endface for preventing dust from entering the brushless motor. The inner surface of the housing and outer surface of the brushless motor define a circulation path providing communication between the air intake hole and the air exhaust hole.

Electric drive motor for a work apparatus

An electric drive motor for a work apparatus includes a stator having two stator poles which are at a distance from one another in the circumferential direction and have respective field windings. The motor has a rotor which rotates between the stator poles and the rotor shaft of the rotor drives a fan wheel. The cooling-air flow generated by the fan wheel enters the stator, flows therethrough and is discharged therefrom. For effective cooling, a pole intermediate space is provided between the stator poles; and, for the cooling-air flow, this space is filled by a non-magnetic guide body to provide a cooling duct delimited by the guide body and the field windings. The guide body is fastened to a support at one stator end and is inserted axially into the stator at the other end thereof.

Eccentric mechanism and power tool provided with the eccentric mechanism

A power tool for use with a rotatable work element, having a housing with sidewall apertures, a motor located within the housing and operable to rotate a work element drive member, a central support member and an annular fan member. The central support member having an outer perimeter support wall portion with a fan member perimeter portion attached, each section of the fan member perimeter portion including a fan blade and a fan member aperture adjacent to the fan blade to direct air from within the housing through the fan member aperture toward the housing sidewall apertures. An eccentric member is mounted on the central support member for rotation therewith, and a counterweight is mounted on the central support member for rotation therewith.

ELECTRIC AIRCRAFT PROPULSION SYSTEM

An electric propulsion system for an aircraft includes a nacelle and an electric machine. The electric machine includes a stator positioned in the nacelle, and a rotor and fan assembly positioned in a primary flow path through the nacelle. The rotor and fan assembly includes a cylindrical fan shroud, a plurality of rotor magnets positioned on an outer surface of the fan shroud, and a fan hub mounted on a central support shaft via one or more bearings. A plurality of fan blades extend between an inner surface of the fan shroud and an outer surface of the fan hub. The rotor magnets may be loaded in compression in a radial direction when the rotor and fan assembly is at rest. The fan blades may be pre-stressed in a radial direction when the rotor and fan assembly is at rest. 1. A propulsion system for an aircraft , the system comprising:a nacelle defining a primary air flow path from an inlet end of the nacelle to an outlet end of the nacelle; a first stator positioned in the nacelle and comprising a first one or more stator windings; and', a first fan shroud having a first outer surface;', 'a first plurality of rotor magnets positioned directly on the first outer surface of the first fan shroud and concentric with the first one or more stator windings;', 'a first fan hub positioned concentrically interior of the first fan shroud, the first fan hub being coupled to a central support shaft; and', 'a first plurality of fan blades extending between the first fan shroud and the first fan hub., 'a first rotor and fan assembly positioned in the primary flow path, the first rotor and fan assembly comprising], 'a first electric machine comprising2. The system of claim 1 , comprising: a second stator positioned in the nacelle and comprising a second one or more stator windings; and', a second fan shroud having a second outer surface;', 'a second plurality of rotor magnets positioned directly on the second outer surface of the second fan shroud and concentric with the second one ...

IMotor with Heat Dissipation Structure

A motor includes a housing, a front cover, a rotating shaft, and a cooling fan. The front cover is provided with multiple air guiding fins and defines multiple inlet holes. The housing defines at least one communication hole at its surrounding wall. In use, a central portion of the air current generated by the cooling fan can be guided by the air guiding fins to pass through the inlet holes to enter the motor's housing. An outer portion of the air current can flow along the outer surface of the housing. The way of dissipating heat through multiple paths allows the heat generated in the motor to be dissipated more effectively, so that heat is not easy to accumulate in the motor, and thus the performance and service life of the motor can be increased.

Motor sleeve and motor device

A motor sleeve is applied to a motor housing and a motor driver housing. The motor sleeve includes a sleeve base, a second fixing structure, a second coupling structure, a plurality of base fins, a sleeve chassis, a plurality of chassis fins, and a third fixing structure. The second fixing structure is disposed on an inner surface of the sleeve base and correspondingly fixed to a first fixing structure of the motor housing. The sleeve base is installed on a lateral portion of the motor housing. The base fins are separately disposed on an outer surface of the sleeve base and corresponding to a first coupling structure of the motor driver housing. The motor driver housing is coupled to the sleeve base by the first and second coupling structures. The third fixing structure is correspondingly fixed to a fourth fixing structure of the motor housing.

RADIAL VENTILATOR

A radial ventilator () has a base part (), a housing part (), with a discharge , placed on the base part (), a motor electronics unit (), and an internal rotor electric motor. The motor drives a ventilator wheel () via a shaft (). The motor electronics unit () and a stator () of the electric motor are encapsulated by an extrusion coating () in the base part () and together form an integral one-piece structural unit. The radial ventilator () has a pressure chamber (D) enlarging in a spiral shape around the ventilator wheel (). The pressure chamber (D) is formed and defined by the housing part () and the extrusion coating (). 116.-. (canceled)17. A radial ventilator comprising: a base part , a housing part placed on the base part , a motor electronics unit , and an internal rotor electric motor;a ventilator wheel drive via a shaft of the electric motor;the motor electronics unit and a stator of the electric motor are encapsulated by an extrusion coating in the base part and together form an integral one-piece structural unit; the radial ventilator has a pressure chamber expanding in a spiral shape around the ventilator wheel, the pressure chamber is formed and defined by the housing part and the extrusion coating.18. The radial ventilator as claimed in claim 17 , wherein the extrusion coating comprises a protruding ring section extending in the axial direction claim 17 , the axial end face of the ring section defines the pressure chamber and the ring section defines a receptacle chamber for the motor electronics unit.19. The radial ventilator as claimed in claim 17 , wherein the spiral-shaped pressure chamber is formed by an axial and radial expansion.20. The radial ventilator as claimed in claim 17 , wherein the housing part has a constant diameter delimiting the pressure chamber and a spiral shape of the pressure chamber is exclusively defined by the extrusion coating.21. The radial ventilator as claimed in claim 17 , wherein the electric motor is arranged on a ...

ADAPTOR WITH IMPROVED AIRFLOW

An adaptor is disclosed for connecting a rotating electrical machine to a prime mover . The adaptor comprises at least one air outlet. The adaptor is arranged to provide an increase in a cross-sectional area of air flow towards the outlet. In this way part of the dynamic pressure can be converted into additional static pressure rise through steady expansion of the air flow cross-section. This in turn may help to improve the overall amount of cooling air passing through the machine for a given fan input power. 138-. (canceled)39. An adaptor arranged to connect a rotating electrical machine to a prime mover , the adaptor comprising:a plurality of side walls;a top wall; and each of the plurality of side walls, the top wall, and the bottom wall includes an air outlet,', 'each air outlet is provided in a first part of the corresponding wall, in a direction of air flow,', 'a second part of at least one of the plurality of side walls, the top wall, and the bottom wall has an aperture which is blocked off using a removable cover;', 'the removable cover is removable to allow an operator access to rotating parts;', 'the removable cover is arranged to direct air flow to the air outlet in a subsequent wall in the direction of the airflow, and', 'the removable cover is arranged so as to increase a cross-sectional area of air flow towards the air outlet of the subsequent wall in the direction of the airflow., 'a bottom wall, wherein'}40. An adaptor according to claim 39 , wherein each of the walls functions as a partial volute.41. An adaptor according to claim 39 , wherein each of the walls is arranged to reduce re-entrainment of air back into the adaptor.42. An adaptor according to claim 39 , wherein the adaptor is arranged to house a fan.43. An adaptor according to claim 42 , wherein the increase in the cross-sectional area of the air flow is achieved by increasing distance between a perimeter of the fan and a wall of the adaptor.44. An adaptor according to claim 39 , wherein ...

Air circulation and ventilation apparatus for food processing machine

An air circulation and ventilation apparatus for a food processing machine ( 70 ), and the air circulation and ventilation apparatus comprises: a motor ( 10 ) and a fan ( 30 ), in which the motor ( 10 ) is used for driving an agitating or pulverizing assembly and is arranged within a base of the machine, and a body ( 60 ) of the machine is disposed outside the base, and the gap between the body ( 60 ) and the outer side wall of the base forms an air inlet passage; the fan ( 30 ) is equipped with a driving motor and is arranged within the base, and under the effect of the fan ( 30 ), airflow enters the air inlet passage by means of an air inlet port ( 22 ) on the base and flows through the motor ( 10 ) within the base and is discharged from an outlet port ( 23 ) on the base. By independently and separately providing the motor ( 10 ) for driving the agitating or pulverizing assembly of the food processing machine ( 70 ) and the fan ( 30 ) for ventilation, the load on the motor ( 10 ) and the vibration of the food processing machine ( 70 ) maybe be reduced, while also reducing noise; the fan ( 30 ) drives the operation thereof, and can independently adjust the rotational speed thereof according to ventilation needs, thus preventing waste of resources; further, when an operation problem occurs with the motor ( 10 ), the motor ( 10 ) may be effectively cooled down, thus maintaining good heat-dissipation efficiency, thereby prolonging the service life of the food processing machine ( 70 ).

Motor and exhaust method for motor cavity

The present invention provides a motor, comprising: a housing; a motor stator located in the housing; a motor output shaft located in the housing; and an exhaust device connected to the housing and configured to exhaust air from the interior of the housing. According to an implementation mode of the present invention, a turbine device is mounted on the motor output shaft; when the motor rotates, an inner cavity of the motor is evacuated to be in a negative pressure state; the higher the motor speed, the lower the air pressure inside the motor, the higher the vacuum degree, and the smaller the frictional resistance between a rotor and the air, so that the motor speed can be effectively increased and a rotor having a relatively large diameter can be used, thereby enhancing the low speed torque while increasing the power density of the motor and facilitating the design of a high power motor.

Generator cooling system for turbo-fan engine

A system capable of appropriately cooling a generator and a power cable connected to the generator, disposed in a hot section of a turbo-fan engine, regardless of a rating of the engine is provided. The system includes: a junction box; a bypass air duct that supplies, to the junction box, air extracted from a portion of a bypass flow path of the engine on a side further downstream than a fan outlet; a core air duct that supplies, to the junction box, air extracted from a portion of a core flow path of the engine on a side further upstream than a compressor outlet; and a cooling air duct that extends from the junction box to a space for accommodating the generator, and valves capable of being independently controlled to open and close are provided at downstream ends of the bypass air duct and the core air duct.

Alternator With External Cooling System

Systems and methods are provided for cooling an alternator using a fan that is operationally independent of the alternator and a duct system that at least partially surrounds the alternator. Example vehicles include an alternator cooling system that comprises a fan configured to be operationally independent of the alternator and disposed adjacent to an end of the alternator, and a duct system encasing the end of the alternator. The vehicles further include a control module configured to control operation of the fan based on one or more inputs related to operation of the alternator. Example methods include receiving, at a processor, an input related to operation of the alternator; determining, based on the input, that a preset condition has been met, using the processor; and responsive thereto, generating a control signal to adjust an operating speed of the fan.

High power battery-powered system

An electrical combination, a motorized device system, a motor assembly, a battery pack, and operating methods. The combination may include an electrical device including a device housing, a load supported by the device housing, the load being operable to output at least about 1800 watts (W), and a device terminal electrically connected to the load; a battery pack including a pack housing, battery cells supported by the pack housing, the battery cells being electrically connected and having a nominal voltage of up to about 20 volts, and a pack terminal electrically connectable to the device terminal to transfer current between the battery pack and the electrical device; and a controller operable to control the transfer of current.

Forced air cooling from piston movements of nailer tool

A fastener driving tool that forces air from its variable venting volume beneath the piston of the working cylinder and directs that forced air through passageways and toward an electronic controller and/or an electric motor before being vented to atmosphere, thereby drawing heat away from those components during an operational cycle of the movable piston. When the piston returns to its initial position, environmental air is drawn through the same passageways, again past the electronic controller and/or electric motor, thereby twice cooling these “hot” components during a single operational cycle.

ELECTRIC MOTOR ASSEMBLY

An electric motor assembly includes an impeller, a guide vane disposed at a one side of the impeller along an axial direction, a stator disposed at one side of the guide vane along the axial direction, a rotor configured to rotate relative to the stator to thereby rotate the impeller, and a frame disposed at an outside of the stator in a radial direction and coupled to the stator. The frame includes a body that has a cylindrical shape, that is disposed at the outside of the stator, and that defines an air flow path, and a plurality of stator fixing parts that protrude from an inner surface of the body and are coupled to the stator. The plurality of stator fixing parts are inclined with respect to the axial direction.

Rotating electric machine

The rotating electric machine includes a housing, a pair of bearings that is fixed by the housing, a shaft supported at opposite ends thereof by the respective bearings, a rotor mounted on the shaft for rotation therewith, and a stator disposed in such a manner as to surround the rotor. A rotational speed detection gear is mounted on the shaft for rotation therewith at a position between the rotor and one of the bearings and in a vicinity of the bearing, and the rotational speed detection gear has a plurality of gear teeth at an outer circumference thereof. A rotational speed detector is provided at a position in the housing so as to face the gear teeth of the rotational speed detection gear. A rotating member for generating a flow of air is disposed in the housing.

Rotor assembly and motor including the same

A rotor assembly includes a shaft with a central axis extending along an up and down direction as a center, and a cylindrical rotor main body fixed to an outer surface of the shaft, and the rotor main body includes core pieces arranged around the shaft in a circumferential direction, rotor magnets alternately arranged with the core pieces around the shaft in the circumferential direction, and a connection portion made of resin and connecting the shaft to the core pieces and the rotor magnets. Each of the rotor magnets includes an engagement region covered by the connection portion of the rotor magnet surface, and an exposed region including an outer surface positioned outward of the rotor magnet surface in a radial direction and is exposed from the connection portion.

Motor

A motor includes a shaft with a central axis along an up and down direction as a center, a bearing mechanism rotatably supporting the shaft; a cylindrical rotor main body fixed to the shaft; a rotor fan fixed to the shaft at an upper side of the rotor main body; an armature facing the rotor main body in a radial direction; and a housing accommodating the rotor main body, the rotor fan, and the armature therein. The bearing mechanism includes a first bearing above the rotor fan in the housing and facing the rotor fan in the up and down direction and a second bearing positioned below the rotor main body. The housing includes a first opening, a second opening, and a bearing holding portion.

Motor

A motor includes a shaft, a bearing mechanism rotatably supporting the shaft, a cylindrical rotor main body fixed to the shaft, a rotor fan fixed to the shaft, an armature, and a housing. The bearing mechanism includes a first bearing above the rotor fan in the housing and facing the rotor fan in an up and down direction. The housing includes a first opening, a second opening, and a bearing holding portion. A cylindrical wind tunnel portion is outward of the rotor fan in a radial direction. An inner surface of the wind tunnel portion and the rotor fan face each other in the radial direction. An upper end portion of the inner surface of the wind tunnel portion and an outer surface of the bearing holding portion face each other in the radial direction.

Cooling of an electric machine

An electric machine includes a housing, a stator, a rotor which is rotatably mounted in a receiving area of the stator, a cooling device for discharging heat out of the housing, a heat exchanger which can be supplied with cooling air and which is arranged on the housing and is coupled to the cooling device, a cooling air channel, and a fan for introducing cooling air into the cooling air channel. The fan has a fan wheel rotatably mounted in a fan housing between two opposing air inlet openings of the fan housing. At least some regions of one of the two air inlet openings have a nozzle-type configuration. An air outlet opening is arranged in a radial direction of the fan wheel.

Compact unit

The invention relates to a compact unit, at least consisting of an electric motor, which is accommodated in housing parts ( 7, 55 ) of a unit housing ( 45 ) and which drives at least one hydraulic pump and gives off heat at the same time, an air heat-exchanging device, and a fan ( 19 ), which can be driven in order t o produce an air flow. The compact unit is characerized in that a flow-conducting device ( 47, 55 ) that divides off from the air flow at least a first partial flow flowing around the electric motor and a second partial flow flowing to the heat-exchanging device is present in the unit housing ( 45 ), or that, arranged in series, the air flow first flows against the electric motor and then the heat-exchanging device, or that the incidence of the air flow occurs at least partially in the reverse direction.

Electric Motor

An electric motor (1), at least having: a housing (2) and a stator (3) situated therein with at least a plurality of coils (4); and a rotor (5) with at least one magnet (6), an axis of rotation (7) and an outer circumferential surface (8); wherein: the stator (3) and the rotor (5) are adjacent to one another along the axis of rotation (7); the rotor (5) has a fluid conduction structure (9) between the axis of rotation (7) and the outer circumferential surface (8); the fluid conduction structure (9) has at least one surface (13) extending at least radially (10) and being inclined relative to at least a circumferential direction (11), or to an axial direction (12) running parallel to the axis of rotation (7); and at least part of a fluid flow (14), transported through the fluid conduction structure (9) inside the housing (2) during the operation of the motor (1), can be conducted over the coils (4).

Embedded electric generator in turbine engine

A turbine engine is described that includes an intake, an inlet duct configured to receive fluid from the intake, and an outer bypass duct configured to receive fluid from the intake. The turbine engine further includes a drive shaft, a tower shaft mechanically coupled to the drive shaft, and an electric generator mechanically coupled to the tower shaft. The electric generator is located between the inlet duct and the outer bypass duct.

MOTOR AND ROTOR BLADE APPARATUS

A motor includes a rotor, a stator, and a support member. The rotor includes a rotor magnet, a magnet holding portion, and spoke portions. The stator includes a plurality of coils and a stator core. The support member includes a stator holding portion and a mount portion. The mount portion includes a plurality of slits extending radially inward from a radially outer end portion of the mount portion. The slits each have openings in an outer circumferential end and an upper surface of the mount portion. The openings of the slits positioned in the upper surface of the mount portion are positioned between the coils adjacent to each other in the circumferential direction when viewed in the axial direction. 1. A motor comprising:a rotor that is rotatable about a central axis extending in an up/down direction;a stator positioned radially inside the rotor; anda support member that supports the stator, whereinthe rotor includes a rotor magnet radially facing the stator, a magnet holding portion that is annular and holds the rotor magnet, and a plurality of spoke portions radially extending from an upper end portion of the magnet holding portion through an upper side of the stator,the stator includes a plurality of coils and a stator core holding the plurality of coils,the support member includes a stator holding portion extending in an axial direction, and a mount portion extending radially outward from a lower end portion of the stator holding portion through a lower side of the stator,the mount portion includes a plurality of slits extending radially inward from a radially outer end portion of the mount portion,the slits each have openings in an outer circumferential end and an upper surface of the mount portion, andthe openings of the slits positioned in the upper surface of the mount portion are positioned between the coils adjacent to each other in a circumferential direction when viewed in the axial direction.2. The motor according to claim 1 , whereinthe support ...

Motor module and vacuum cleaner

A motor module includes a motor, a fan, and a casing accommodating the motor and the fan therein. The casing includes a tubular main body portion, an intake port, an exhaust port, a motor disposing unit, a flow passage, and a partition unit. The flow passage includes a fan accommodating unit. The partition unit includes a first central partition unit that partitions the fan accommodating unit and the motor disposing unit. The first central partition unit includes a cutout portion provided at at least a portion of the first central partition unit. The motor disposing unit communicates with the fan accommodating unit via the cutout portion. A flow passage sectional area of the motor disposing unit is greater than a flow passage sectional area of the first central partition unit.

Axial gap-type power generator

An axial gap-type power generator has: a rotor fixed to a crankshaft of an engine; a stator fixed to a crankcase of the engine and opposing the rotor across a spacing in an axial direction; and a housing to house the rotor and the stator and to fix the stator. The stator is configured by arraying, in a peripheral direction, a plurality of coils C each configured through winding of a winding about a stator core. The housing is formed of a resin-based material. Winding ends of the coils are wired using connector fittings each of which is formed of a metal plate, is held on the housing, and has a clamp into which the winding end is inserted and clamped.

Motor assembly

A motor includes a housing that has a bottom with a first bearing accommodation and a cylindrical side surface portion which extends from the bottom; a rotor assembly with a rotation shaft, and a rotor mounted on the rotation shaft and accommodated inside the housing; a stator assembly accommodated inside the housing and surrounding the rotor; a housing cover coupled to an upper end of the housing and having a second bearing accommodation; a flow guide on the housing cover; an impeller connected to the rotation shaft over the flow guide; an impeller cover; a first bearing accommodated in the first bearing accommodation and receiving the rotation shaft; and a second bearing accommodated in the second bearing accommodation and receiving the rotation shaft, the housing cover having a cover body with an opening, connection arms between the second bearing accommodation and the opening portion, and a guide rib.

MOTOR APPARATUS HAVING COOLING STRUCTURE

A motor apparatus has a cooling structure capable of effectively cooling the motor by inducing a fluid flow into the motor. In particular, the motor apparatus includes: a first part having a first flow path and a motor installed thereon; a second part having a second flow path and configured to be rotatably mounted on the first part and connected to the motor; and a turbine portion coupled to the second part and including disks stacked on one another forming spaces therebetween. When the turbine portion is rotated together with the second part, air is drawn through the first flow path or the second flow path and introduced into an opening hole of each of the disks, and the air is discharged into the spaces formed between the respective disks to cool the motor. 1. A motor apparatus having a cooling structure , the motor apparatus comprising:a first part having a first flow path and a motor installed thereon;a second part having a second flow path, and configured to be rotatably mounted on the first part and connected to the motor to be rotated when the motor is operated; anda turbine portion coupled to an inside of the second part and configured to rotate together with the second part,wherein:the turbine portion includes a plurality of disks each having an opening hole,disks of the plurality of disks are stacked on each other in a vertical direction of the motor apparatus and form a space between the respective disks,the opening holes and the spaces are in communication with each other,when the turbine portion is rotated together with the second part, air is drawn through the first flow path or the second flow path and introduced into the opening hole of each of the disks, andthe air introduced into the opening holes is then discharged into the spaces formed between the respective disks to cool the motor.2. The motor apparatus of claim 1 , wherein:the first part includes a motor seating portion extending in the vertical direction and the motor seats on the motor ...

Brushless motor system for power tools

A power tool is provided including a gear case having a spindle, a motor case connected to a rear end of the gear case along a longitudinal axis; a handle portion extending from a rear end of the motor case along the longitudinal axis; a motor housed inside the motor case; a fan in rotational connection with the motor; at least one air intake arranged at least one of the motor case or the handle portion near the rear end of the motor case; and a power module including power switches for driving the motor and a heat sink. The power module is housed in at least one of the motor case or the handle portion near the rear end of the motor case such that rotation of the fan causes air flow to enter through the air intake and flow near the heat sink and through the motor.

Power head and outdoor power equipment using the same

The disclosure provides a power head and an outdoor power equipment using the same. The power head includes a housing assembly, a motor assembly and a battery pack assembly. The housing assembly includes a first housing and a second housing. The first housing and the second housing defines a housing space. The motor assembly is arranged in the housing space. The motor assembly includes a motor. One end of an output shaft of the motor extends to outside of the housing assembly. The battery pack assembly is arranged inside the housing space. The battery pack assembly supplies power for the motor assembly.

ELECTRIC BLOWER, VACUUM CLEANER, AND HAND DRYER

An electric blower includes a fan, a motor to drive the fan, a first board including at least one switching element, and a second board including a microcomputer. The motor, first board, and second board are arranged in this order in a blowing direction of the fan. 1. An electric blower comprising:a fan;a motor to drive the fan;a first board including at least one switching element; anda second board including a microcomputer,wherein the motor, the first board, and the second board are arranged in this order in a blowing direction of the fan, andwherein the first board includes, on a surface on a side opposite the motor, an electrolytic capacitor.2. (canceled)3. The electric blower of or , wherein the first board further includes a shunt resistor.4. The electric blower of claim 3 , comprising a first connecting terminal and a second connecting terminal that electrically connect the first board and the motor claim 3 , whereinthe at least one switching element includes a first switching element connected to the first connecting terminal and the shunt resistor, and a second switching element connected to the second connecting terminal and the shunt resistor,a wiring length from the first connecting terminal to the first switching element is equal to a wiring length from the second connecting terminal to the second switching element, anda wiring length from the first connecting terminal to the shunt resistor is equal to a wiring length from the second connecting terminal to the shunt resistor.5. The electric blower of claim 3 , comprising a first connecting terminal and a second connecting terminal that electrically connect the first board and the motor claim 3 , whereinthe at least one switching element includes a first switching element connected to the first connecting terminal and the shunt resistor, and a second switching element connected to the second connecting terminal and the shunt resistor, anda wiring impedance when current flows through the motor and the ...

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.

Motor

A motor, including: a motor body, the motor body including two ends; a damping ring, the damping ring including a bottom; a mounting bracket; a locking device; a control box; and a connection housing, the connection housing including two ends, and a sidewall. The damping ring is disposed on each end of the motor body. The bottom of the damping ring is supported by the mounting bracket. The damping ring is fixed on the mounting bracket by the locking device. One end of the connection housing is connected to a bottom of the motor body; the other end of the connection housing is connected to a top of the control box. A plurality of heat dissipation holes is arranged on the sidewall of the connection housing.

WIND POWER GENERATION UNIT, ELECTRIC MOTOR, AND AIRFLOW DELIVERY DEVICE FOR ELECTRIC MOTOR AIR GAP

A wind power generation unit, an electric motor, and an airflow delivery for an electric motor air gap are provided. The airflow delivery device for the electric motor air gap comprises an annular air distribution chamber, wherein the annular air distribution chamber is located at at least one end of the air gap, and the annular air distribution chamber has a delivery port facing the air gap so as to deliver a hot or cold airflow to the air gap. The annular air distribution chamber is arranged at an end part of the air gap, the required airflow is introduced into the annular air distribution chamber, and the annular air distribution chamber can output the accumulated airflow to the air gap, facilitating the airflow in flowing smoothly through the air gap, such that the flow of the air gap is relatively easy to control. 1301. An airflow delivery device for an electric motor air gap , wherein , the air gap is formed between a rotor and a stator of the motor , the airflow delivery device comprises an annular air distribution chamber () which is located at at least one end of the air gap , and the annular air distribution chamber is provided with a delivery port facing the air gap , which delivers hot airflow or cold airflow to the air gap.2. The airflow delivery device for the electric motor air gap according to claim 1 , wherein claim 1 , the annular air distribution chamber comprises an air intake nozzle claim 1 , and an flow area of the air intake nozzle is gradually reduced along an air intake direction claim 1 , or the air intake nozzle is a converging nozzle; anda jet of the air intake nozzle forms the delivery port.3. The airflow delivery device for the electric motor air gap according to claim 2 , wherein claim 2 , the annular air distribution chamber is an annular through cavity; or claim 2 ,the annular air distribution chamber comprises an air distribution chamber main body, and the air distribution chamber main body is separated into more than two sub air ...

Breathing electric motor

An electric motor has efficient self-cooling. The electric motor contains a rotor that is rotatably mounted with respect to a stator. On a first sub-segment of an end face of the rotor, a first air-guiding contour is formed that, during rotation of the rotor in a reference rotation direction, generates an outwardly directed air flow. On a second sub-segment of the same end face, a second air-guide contour is formed that, during rotation of the rotor in a reference rotation direction, generates an inwardly directed air flow.

Dynamo for an internal combustion engine

An electric generator may include a housing having a housing casing running around in a circumferential direction and front and rear side walls, a radially outer stator rotatably arranged on the housing about an axis of rotation, and a radially inner rotor arranged on the housing in a rotationally fixed manner. The generator may also have an axially outer impeller wheel arranged on an outer side of the front side wall and arranged in a rotationally fixed fashion on the rotor. The generator may further have a primary air inlet having inlet openings formed in the rear side wall, a secondary air inlet having secondary inlet openings formed in the housing casing, an air outlet having a plurality of outlet openings formed in the front side wall, a primary air path from the primary air inlet to the air outlet, and a secondary air path from the secondary air inlet to the air outlet. During operation, the impeller wheel may rotate with the rotor and generate a partial vacuum that generates a primary air flow, which enters the primary air inlet, follows the primary air path, and exits through the air outlet, and a secondary air flow, which enters through the secondary air inlet, follows the secondary air path, and exits through the air outlet.

Motor structure capable of dissipating heat therein

A motor structure includes a housing, a cover, an air collecting structure fixed to the cover, and a cooling fan. The cover defines a plurality of inlet holes. The air collecting structure defines a plurality of through holes aligned with the inlet holes of the cover, so as to provide a path for allowing a central portion of the air current generated by the cooling fan to enter the housing. The housing defines a plurality of communication holes and a plurality of outlet holes for allowing the air which has entered the housing to flow thereout. In addition, the present invention provides another path so that an outer portion of the air current can flow along the outer surface of the housing to reduce the temperature of the housing.

ENCLOSED ELECTRIC MACHINE WITH EXTERNAL LIQUID COOLING CIRCUIT

An electric machine includes a rotor surrounded by a stator. An external jacket surrounds the stator and extends between front and rear end parts, thereby delimiting an inner region which accommodates the rotor, and an outer region radially surrounding the inner region. The inner and outer regions communicate with one another via recesses to enable air to flow out of the inner region and into the outer region and from there to flow back into the inner region. Front and rear closing elements are attached to the front and rear end parts on their side facing away from the external jacket, thereby enclosing a front cavity and a rear cavity. Axial tubes are fastened in the front and rear end parts such that the axial tubes extend from the front end part across the outer region to the rear end part and open in the front and rear cavities. 111.-. (canceled)12. An enclosed electric machine with an air-based internal cooling circuit and an external liquid cooling circuit , said electric machine comprising:rotor mounted for rotation about an axis of rotation;a stator disposed in surrounding relation to the rotor, when viewed about the axis of rotation;an external jacket disposed in surrounding relation to the stator with a varying radial spacing and extending, when viewed in the direction of the axis of rotation, from a front end part to a rear end part, so that the front and rear end parts and the stator delimit an inner region which accommodates the rotor, and the front and rear end parts, the stator and the external jacket delimit an outer region in radially surrounding relation to the inner region on an outside, with the inner and outer regions communicating with one another via recesses to enable air to flow out of the inner region and into the outer region and from there to flow back into the inner region;front and rear closing elements respectively attached in a liquid-tight manner to the front and rear end parts on their side facing away from the external jacket, so ...

Heat-sink base provided with heat-sink fin portions, method for producing same and motor provided with same

A heat-sink base provided with heat-sink fin portions, a manufacturing method and a motor provided with the heat-sink base. The base is produced by pouring cast metal into a mold cavity to replace a pattern having a predetermined sublimation temperature. The base includes a preformed heat-sink member comprising a plurality of heat-sink fin portions and at least one anchor portion embedded at least partially in the pattern, and a base body comprising an enclosed base portion and a holder portion for receiving and holding the at least one anchor portion. By virtue of the invented method, the heat-sink member having an extremely thin thickness can be mounted on the base body and the overall surface area of the heat-sink base is increased considerably.

Electric rotating machine

An electric rotating machine does not require management of the gap between a fan guide at a small-diameter portion and a fan fixing portion and can suppress the manufacturing and maintenance costs from increasing. An electric rotating machine is provided with a small-diameter portion fan guide that extends both in a circumferential direction and in an axial direction in such a way as to be provided a space in the radial-direction outer side of a small-diameter portion that is a portion of an extending axle portion, of a rotation axle, that extends in the axial direction from a rotor, the portion being at an axial-direction departing side than a fan fixing portion to which an axial-flow fan is fixed and in such a way that the small-diameter portion fan guide is disposed to be provided a space with the fan fixing portion in the axial direction.

Motor Housing and Method for Producing a Motor Housing

A motor housing for an electric motor may have an inner part having a hollow-cylindrical base body and at least one rib arranged on the outside of the base body and a casing slipped over the inner part and contacting the at least one rib. A cooling channel may be formed between the inner part and the casing. 126-. (canceled)27. A motor housing for an electric motor , comprisingan inner part having a hollow-cylindrical base body and at least one rib arranged on the outside of the base body anda casing slipped over the inner part and contacting the at least one rib,a cooling channel being formed between the inner part and the casing.28. The motor housing according to claim 27 , wherein there is a press fit between the casing and the inner part.29. The motor housing according to claim 27 , wherein the casing has a conical shape.30. The motor housing according to claim 27 , wherein an outer radius of the inner part claim 27 , given by the at least one rib claim 27 , increases in an axial direction.31. The motor housing according to claim 27 , wherein the inner part is produced by casting or extrusion.32. The motor housing according to claim 27 , wherein the inner part is made of metal comprised of steel or aluminum.33. The motor housing according to claim 27 , further comprising one or two cover plates.34. The motor housing according to claim 33 , wherein at least one of the cover plates has at least one contacting opening.35. The motor housing according to claim 34 , wherein one of the cover plates is cast in one piece with the inner part.36. The motor housing according to claim 27 , wherein the casing is produced by forming technology.37. The motor housing according to claim 27 , wherein the casing is formed in one piece.38. The motor housing according to claim 27 , wherein the casing has a spatially varying wall thickness.39. The motor housing according to claim 27 , wherein the casing is made of metal comprising sheet metal or steel or aluminum claim 27 , or is made ...

Outer Rotor Assembly and Brushless Motor

The disclosure provides an outer rotor assembly and a brushless motor. The outer rotor includes a housing, a rotating shaft, a fan, and a magnetic tile assembly. The housing includes a side wall and an end wall, the side wall and the end wall are of an integrated structure, and a shaft hole is formed in a center of the end wall. One end of the rotating shaft extends into the housing and penetrates out of the shaft hole, and the rotating shaft is fixedly connected with the shaft hole. The fan is fixedly connected with one end of the rotating shaft penetrating out of the shaft hole. And the magnetic tile assembly is disposed within the housing and fixedly connected to the side wall. 1. An outer rotor assembly , comprising:a housing, including a side wall and an end wall, wherein the side wall and the end wall are of an integrated structure, and a shaft hole is formed in a center of the end wall;a rotating shaft, wherein one end of the rotating shaft extends into the housing and penetrates out of the shaft hole, and the rotating shaft is fixedly connected with the shaft hole;a fan, fixedly connected with one end of the rotating shaft penetrating out of the shaft hole; anda magnetic tile assembly, disposed within the housing and fixedly connected to the side wall.2. The outer rotor assembly of claim 1 , wherein the magnetic tile assembly comprises a magnetic tile clamp claim 1 , a plurality of S-pole magnetic tiles claim 1 , and a plurality of N-pole magnetic tiles claim 1 ,wherein the magnetic tile clamp is disposed within the housing and fixedly connected with an inner wall of the side wall, the plurality of the N-pole magnetic tiles and the plurality of the S-pole magnetic tiles are arranged at intervals along a circumferential direction of the magnetic tile clamp, and are fixedly connected with the magnetic tile clamp.3. The outer rotor assembly of claim 2 , wherein the magnetic tile clamp is a squirrel-cage magnetic tile clamp.4. The outer rotor assembly of claim 1 ...

Drive device

A drive device includes an electric motor and a gear unit that is driven by the electric motor. The electric motor has a laminated stator core which includes stator windings and is accommodated in a stator housing. The stator housing has recesses that are axially uninterrupted, i.e. in particular in the direction of the rotor shaft axis, and the stator housing is surrounded, especially radially surrounded, by a housing of the drive device, in particular a tubular housing and/or a cup-shaped housing, and the housing is set apart from the stator housing, in particular such that an especially circulating airflow is able to be provided within the housing, the recesses in particular guiding the airflow through in the axial direction, and the airflow being returned in the opposite direction in the set-apart region between the stator housing part and the housing.

Device for the intermittent operation of the cooling fan of three-phase induction motors, controlled by the temperature of the stator winding

The object of the present invention is to provide a device that allows the intermittent operation of the cooling fan, with a mechanism controlled by the stator temperature, to reduce whipping losses and improve the operating efficiency of three-phase induction motors for industrial use, such as those that operate pumps, compressors, conveyors, fans, welding machines and die cutters, among others.

WORK TOOL WITH MOTOR AND FAN

Described herein is a work tool () comprising: a motor () provided with a drive shaft (), a casing () containing the motor () and provided with at least one inlet opening () and with at least one outlet opening (), an implement () positioned outside the casing () and kinematically connected with the drive shaft (), and a fan () kinematically connected to the drive shaft () and able to generate a flow of air from the inlet opening () towards the outlet opening () of the casing () passing in heat exchange relationship with the motor (), wherein said fan () is contained inside the casing () in a space located between the motor () and the implement (). 2100245. The work tool () according to claim 1 , wherein the fan () is an axial fan.3100240195135. The work tool () according to claim 1 , wherein the outlet opening () of the casing () faces the tool ().4100245215205135. The work tool () according to claim 1 , wherein the fan () is axially interposed between the gear wheel () of the transmission () and the tool ().5100125140125145160140145160180185245145130. The work tool () according to claim 1 , wherein the motor () is an electric motor comprising a rotor () coaxially fixed to the drive shaft () claim 1 , a stator () and a motor body () containing the rotor () and the stator () claim 1 , said motor body () comprising at least one inlet port () and at least one outlet port () for the air flow generated by the fan () claim 1 , which are positioned at opposite sides of the stator () along the direction defined by the drive shaft ().6100180170160135185165160. The work tool () according to claim 5 , wherein said inlet port () is realized on a head () of the motor body () oriented towards the tool () claim 5 , whereas the outlet port () is obtained on a lateral wall () of the motor body ().7100125190160130. The work tool () according to claim 5 , wherein the motor () comprises an auxiliary fan () positioned inside the motor body () and coaxially fixed to the drive shaft (). ...

An electric machine

The electric machine comprises a cylindrical rotor with axial first air channels and a stator with axial second air channels. The outer surface of the stator is provided with cooling fins. There is a first air chamber at a first end of the rotor, a second air chamber and an adjacent third air chamber at a second end of the rotor. A first fan circulates internal air from the first axial air channels to the second air channels in a closed air circulation within the electric machine. A second fan blows external cooling air from the outside of the electric machine through the third air chamber and from the outlet opening of the third air chamber along the outer surface of the stator. The number of second air channels in the stator is three.

TECHNIQUES FOR SUB-MICRON RADIAL ALIGNMENT OF ELECTRIC MOTOR COMPONENTS AND AIR FLOW MANAGEMENT TO EXTEND MOTOR LIFESPAN

The present disclosure is generally directed to techniques for radial alignment of motor components relative to each other to achieve a motor with a rotor bore having sub-micron end-to-end deviation. In an embodiment, a rotor bore alignment tool is disclosed herein that can be inserted between motor components, and more particularly, apertures/through holes defined by each of the motor components such as housing sections and a stator assembly. The rotor bore alignment tool includes expandable members that can be selectively transitioned to an extended position to cause each of the motor components to be radially aligned prior to securely coupling the same in a so-called “stack” to form a motor. Once the motor components are coupled together, the resulting motor includes a rotor shaft extending from end-to-end that preferably includes a sub-micron deviation of less than 10 microns, and more preferably less than or equal to 5 microns, for example. 1. An electric motor , the electric motor comprising:a first housing portion defining a first rotor receptacle to receive and couple to a first end of a rotor assembly;a second housing portion defining a second rotor receptacle to receive and couple to a second end of the rotor assembly, the first and second housing portions configured to couple together and collectively provide a rotor bore to receive the rotor assembly; anda rotor assembly disposed within the rotor bore, the rotor assembly comprising a shaft and at least a first bearing coupled concentrically along the shaft, the first bearing being disposed within the first rotor receptacle of the first housing portion or within the second rotor receptacle of the second housing portion, and wherein the shaft and first bearing are radially aligned with each other based on the rotor bore collectively provided by the first and second housing portions having an end-to-end offset deviation of less than 10 microns.2. The electric motor of claim 1 , wherein each of the first and ...

ELECTRONICALLY COMMUTATED ROTATING ELECTRICAL MACHINE

An electronically commutated rotating electric machine comprising a first housing part, housing the active core of the machine and a second housing part that houses the control drive, wherein the first and second housing parts are configured such that, after being connected to one another, a gap is formed between them; the parts having deflecting portions that are configured to direct an air flow into the gap. 1. An electronically commutated electric rotating machine comprising a first housing part which houses the active core of the machine and a second housing part which houses the drive control , wherein:the first and second housing parts are configured such that, after being connected to one another, a gap is formed between them;the first housing part comprises a rear plate with at least one deflecting portion;the second housing part comprises a front plate comprising at least one deflecting portion;the gap being formed between the rear plate and the front plate, so that the deflecting portions are configured to direct air flow into the gap.2. The machine according to claim 1 , wherein the deflecting portions are shaped with a concave shape.3. The machine according to claim 1 , wherein:the first and second housing parts are dimensioned such that:a portion of the surface of the rear plate directly receives an air flow flowing from a rear part of the machine; anda portion of the surface of the front plate directly receives an air flow flowing from a front part of the machine.4. The machine according to claim 3 , wherein:the deflecting portion of the rear plate is formed on the perimeter of said surface portion of the rear plate; andthe deflecting portion of the front plate is provided at the perimeter of said surface portion of the front plat.5. The machine according to claim 1 , wherein the front plate has a plurality of heat exchange projections. This application claims the benefit of U.S. Provisional Application Ser. No. 62/945,766, filed Dec. 9, 2019, said ...

GENSET ENCLOSURE WITH AIR DEFLECTOR ASSEMBLY

A genset includes an enclosure and a deflector assembly. The enclosure defines an at least partially enclosed space and a ventilation air opening that fluidly couples the enclosed space with an environment surrounding the enclosure. The deflector assembly includes a deflector disposed within the enclosed space and an angle driver. The angle driver is structured to adjust an angular position of the deflector relative to the ventilation air opening to minimize exported noise. 1. A genset , comprising:an enclosure defining an at least partially enclosed space and a ventilation air opening, the ventilation air opening fluidly coupling the enclosed space with an environment surrounding the enclosure; and a deflector disposed within the enclosed space; and', 'an angle driver structured to adjust an angular position of the deflector relative to the ventilation air opening., 'a deflector assembly, comprising2. The genset of claim 1 , wherein the angle driver is structured to vary the angular position of the deflector relative to the ventilation air opening within a range between approximately 0° and 90°.3. The genset of claim 1 , wherein the deflector assembly further comprises a length driver structured to vary a distance that the deflector extends into a flow path of the ventilation air opening.4. The genset of claim 3 , wherein the length driver is structured to vary the distance within a range between approximately 0 mm and 3000 mm.5. The genset of claim 1 , wherein the deflector is formed in a plurality of sections that are coupled to one another such that an end of a first section of the plurality of sections is coupled to an end of a second section of the plurality of sections.6. The genset of claim 1 , further comprising a controller configured to control the angle driver automatically based on feedback from at least one of a fan speed sensor claim 1 , a pressure measurement sensor claim 1 , an engine rotational speed sensor claim 1 , or a sound sensor.7. A method ...

ELECTRIC MOTOR WITH AN AIR-GUIDING ELEMENT

An electric motor is described, having a rotor, a stator, a housing surrounding the elements having a circumferential wall and an end wall, and an air-guiding element arranged axially between the end wall and an end surface of the rotor. The air-guiding element has a first section that is disk-shaped about the axis (A) and axially spaced apart from the end wall and which extends radially and a second section of tubular form about the axis (A) and which adjoins the first section radially at the inside and which extends in the direction of an end surface of the rotor. The air-guiding element forms an air channel with a heat-exchange region situated between the first section and the end wall and with an intake region running within the second section. 110-. (canceled)11. An electric motor , comprising:a stator with a stator winding and an end-face winding head, a rotor rotatable about an axis A;a housing, which surrounds the stator and the rotor with a circumferential wall and at least one end wall; and a first portion formed in a shape of a disk around the axis A and is axially spaced from the at least one end wall and which extends in a radial direction with respect to the axis A and the at least one end wall; and', 'a second portion formed in the shape of a tube around the axis A and adjoins the first portion on a radially inner side of the first portion and which extends in a direction of the end face of the rotor; and', 'an air channel formed by the air-guiding element with a heat exchange region located between the first portion and the at least one end wall and an intake region extending inside the second portion., 'an air-guiding element fixed to the housing and arranged axially between the at least one end wall and an end face of the rotor, and comprising12. The electric motor as claimed in claim 11 , wherein the air-guiding element is arranged with the second portion radially inside the end-face winding head and coincides with the end-face winding head ...

ELECTRIC POWER UNIT

An electric power unit includes: a rotary electric machine unit an electrical unit disposed above the rotary electric machine unit; and a cooling unit. The electrical unit includes a protrusion protruding outward from a left end portion of the rotary electric machine housing portion of the rotary electric machine in a left-right direction. The cooling unit includes: a cooling fan configured to generate cooling air by rotating integrally with a rotary shaft of the rotary electric machine; and an air guide unit configured to guide the cooling air. The air guide unit includes cooling air flow paths provided between the cooling fan and the electrical unit. The closer to the protrusion of the electrical unit a cooling air flow path is disposed, the larger opening area of the introduction port the cooling air flow path has. 1. An electric power unit comprising:a rotary electric machine unit;an electrical unit disposed outside the rotary electric machine unit; anda cooling unit, wherein a rotary electric machine having a stator and a rotor;', 'a rotary electric machine case having a rotary electric machine housing portion accommodating the rotary electric machine; and', 'a rotary shall configured to rotate integrally with the rotor, wherein', a peripheral wall portion covering an outer peripheral surface of the rotary electric machine;', 'a first end wall portion covering one axial end side of e rotary electric machine in an axial direction; and', 'a second end wall portion covering another axial end side in the axial direction, and, 'the rotary electric machine housing portion includes, 'the rotary shaft is inserted through the rotary electric machine housing portion and protrudes from the first end wall portion to the one axial end side,, 'the rotary electric machine unit further includesthe electrical unit is disposed outside the peripheral wall portion of the rotary electric machine housing portion when viewed from the axial direction and disposed at a position at ...

ACTUATOR

An actuator () is provided in which the actuator housing () has at least one actuator housing part () or (). At least one component support () or () which serves as a support structure for at least one functional element of the actuator is disposed within the actuator housing (). Furthermore, the at least one actuator housing part () or () is fastened to the component support () or (). 11. An actuator () comprising:{'b': 2', '3', '4, 'an actuator housing () which comprises at least one actuator housing part (, ); and'}{'b': 5', '6', '2', '1', '3', '4, 'at least one component support (, ) disposed within the actuator housing () and which supports at least one functional element of the actuator (), and to which the at least one actuator housing part (, ) is fastened.'}22627. The actuator as claimed in claim 1 , wherein the at least one actuator housing part comprises first and second pot-shaped actuator housing parts claim 1 , and the at least one functional element of the actuator comprises at least one of a drive motor () or a gear unit ().3134. The actuator () as claimed in claim 1 , wherein the at least one actuator housing part ( claim 1 , ) is at least one of formed of a thin-walled material having a material thickness of at most four millimeters claim 1 , sheet metal claim 1 , or plastics material.41567342734. The actuator () as claimed in claim 1 , wherein the component support ( claim 1 , ) includes a fastening flange () to which the at least one actuator housing part ( claim 1 , ) of the actuator housing () is fastened claim 1 , and a seal is disposed between the fastening flange () and the at least one actuator housing part ( claim 1 , ).51568342. The actuator () as claimed in claim 1 , wherein the component support ( claim 1 , ) is disposed on a pot base () of the at least one actuator housing part ( claim 1 , ) of the actuator housing ().615691. The actuator () as claimed in claim 1 , wherein the component support ( claim 1 , ) at least one of forms or ...

Electric rotating machine

In order to provide an electric rotating machine which is inexpensive and miniaturized while improving cooling performance of a rotor, a power supply unit is fixed on the axial side of a shaft in a bracket and a permanent magnet is arranged adjacent to the advancing side in the rotation direction of a claw-shaped magnetic pole portion of a magnetic pole on the side where the power supply unit is provided.

GENERATOR SET

A generator set system includes an engine and an alternator. Control panels and switchboards for operating the generator set system are integrated into a frame/enclosure that is positioned around/above the alternator. The panels and switchboards are positioned on the sides of the enclosure to allow user access. 1. A containerised generator set system , comprising:an engine operatively coupled to an alternator, the alternator comprising output terminals;a plurality of batteries;an engine starting and battery management system panel configured to selectively charge the battery and to start the engine;a genset control system panel configured to control operation of the generator set system;a circuit breaker panel configured to selectively isolate the alternator output terminals;a power protection system panel;a frame into which the panels are integrated to form an enclosure, the enclosure being provided adjacent at least two sides of the alternator; anda container that houses the engine, the alternator, the batteries, and the enclosure.2. The system of claim 1 , wherein the enclosure is provided adjacent three sides of the alternator and which surrounds the alternator.3. The system of claim 1 , wherein the enclosure is disposed around a barrel of the alternator.4. The system of claim 3 , wherein the engine and the alternator are positioned along a longitudinal axis of the container.5. The system of claim 4 , wherein the container comprises a pair of opposed side walls and a pair of opposed end walls claim 4 , the engine and the alternator being spaced from the pair of side walls and at least one end wall to define an access path.6. The system of claim 4 , wherein the container further comprises an air inlet system and an air outlet system provided at opposing ends of the container claim 4 , wherein the engine is positioned adjacent the air outlet system and the alternator is positioned adjacent the air inlet system.7. The system of claim 1 , wherein the enclosure ...

THROUGHFLOW VACUUM MOTOR WITH REVERSE AIRFLOW

A throughflow motor assembly includes a motor assembly having a rotatable shaft and a housing with a motor assembly mounted to one end and a housing opening therethrough. A fan assembly is rotated by the rotatable shaft and received in the housing at an end opposite the motor assembly. The housing includes a partition which partitions the fan assembly and the motor assembly from one another, and includes at least one centrally located flow passage extending therethrough. The fan assembly draws air over the motor assembly, through the housing opening and at least one centrally located flow passage, and then into the fan assembly which exhausts the air. 1. A throughflow motor assembly , comprising:a motor assembly having a rotatable shaft;a housing having said motor assembly mounted to one end thereof, said housing having a housing opening therethrough; anda fan assembly rotated by said rotatable shaft and received in said housing at an end opposite said motor assembly,said housing having a partition which partitions said fan assembly and said motor assembly from one another, said partition having at least one centrally located flow passage extending therethrough, said fan assembly drawing air over said motor assembly, through said housing opening and said at least one centrally located flow passage and then into said fan assembly which exhausts the air.2. The assembly according to claim 1 , further comprising:a plurality of guide vanes extending from said partition and extend from said at least one centrally located flow passage, wherein said plurality of guide vanes guide air from said housing opening through said at least one centrally located passage.3. The assembly according to claim 2 , wherein said fan assembly has a fan inlet axially aligned with said at least one centrally located passage.4. The assembly according to claim 3 , further comprising:a partition bearing collar carried by said partition and having a tapered outer surface, said plurality of guide ...

Cover device for an electronics housing of an electric motor

The invention concerns a cover device for an electronics housing of an electric motor with at least one base segment and at least one rib formed on the base segment, wherein the base segment is geometrically configured so as to cover at least part of the surface of an electronics housing opening for drawing in a cooling air volume flow in order to close the electronics housing opening at least for a portion against the intrusion of solids, and the base segment forms with the at least one rib at least one flow duct, which can be fluidically connected to the electronics housing opening, and wherein the cover device is designed as a modular insert for the electronics housing.

Large high reliability air-cooled motor with optimal ventilation system

A large high reliability air-cooled motor with an optimal ventilation system belongs to the technical field of reliability of electromechanical power equipment, and includes calculating a flow resistance of the ventilation system and selecting the two ventilators, determining a ventilation flow rate, calculating a heating quantity and temperature rises of the motor, determining main influence factors of the temperature rise, determining random numerical characteristics of main influence factors, generating possible minimum and maximum values of running temperatures under different environment temperatures, calculating the reliability degree of the running temperature rise of the motor, creating relations between the motor temperature rise reliability and the cross-sectional area of a ventilation slot at multiple environment temperatures when one ventilator and two ventilators running respectively, and providing a motor with high reliability of temperature rise by using optimal ventilation slot area and choosing ventilators and the number in operation.

Motor

A motor includes a shaft, a bearing, an armature, a bracket, and a covered cylindrical rotor including a rotor lid portion, a rotor side wall portion, and a rotor magnet. The bracket includes a cylindrical portion. The bearing includes lower and upper ball bearings. The shaft includes a shaft main body and a nut. In the lower ball bearing, a lower surface of an inner ring is in contact with an upper surface of the nut and an upper surface of an outer ring is vertically supported by the cylindrical portion. In the upper ball bearing, an inner ring is vertically fixed with respect to the shaft main body and a lower surface of an outer ring is vertically supported by the cylindrical portion.

Motor, blowing device, and vacuum cleaner

A motor including a shaft that is disposed along a vertically extending central axis in which the shaft rotates about the central axis, a magnet and a cooling member that are fixed to the shaft, a stator disposed so as to oppose the magnet in a radial direction, the stator including a coil, a motor housing that accommodates therein the shaft, the magnet, the stator, and the cooling member. The cooling member opposes, in the axial direction, the magnet directly or with another member interposed therebetween. A plurality of protruded portions are provided on the cooling member in which the plurality of protruded portions are protruded in the radial direction and are disposed in a circumferential direction.

High power battery-powered system

An electrical combination, a motorized device system, a motor assembly, a battery pack, and operating methods. The combination may include an electrical device including a device housing, a load supported by the device housing, the load being operable to output at least about 1800 watts (W), and a device terminal electrically connected to the load; a battery pack including a pack housing, battery cells supported by the pack housing, the battery cells being electrically connected and having a nominal voltage of up to about 20 volts, and a pack terminal electrically connectable to the device terminal to transfer current between the battery pack and the electrical device; and a controller operable to control the transfer of current.

Apparatus for cooling an electromagnetic machine

Apparatus and methods are described herein for providing a cooling system for an electromagnetic machine. In some embodiments, an apparatus includes a structure for an electromagnetic machine including a first outer support member that is configured to support a conductive winding or a magnet and a second support member that is disposed at a non-zero distance from the first support member. An elongate structural member has a first end coupled to the first support member and a second end coupled to the second support member and extends between the first support member and the second support member. The elongate structural member defines an interior channel that extends between the first end and the second end of the elongate structural member. The channel is configured to convey a cooling medium therethrough to cool at least a portion of the electromagnetic machine.

Axle assembly having a spigot bearing assembly

An axle assembly having a spigot bearing assembly. The spigot bearing assembly may extend between a motor housing and a rotor output flange that may be fixedly mounted to a rotor. The spigot bearing assembly may rotatably support the rotor output flange and may inhibit deflection of the rotor. A spigot bearing biasing member may exert a biasing force on the spigot bearing assembly.

Alternator having an external ignition protection system

An alternator includes an external ignition protection system including a shaft rotatable about an axis. The shaft includes a slip ring end. A slip ring support is mounted at the slip ring end of the shaft. A slip ring cover is mounted to the shaft. The slip ring cover defines a slip ring cavity. A first slip ring end housing supports the slip ring cover. The first slip ring end housing includes a first plurality of openings. A second slip ring end housing is arranged axially outwardly of the slip ring end. The second slip ring end housing includes a second plurality of openings. The first slip ring end housing, slip ring cover and the second slip ring end housing define a labyrinth flow path that provides an air flow through the slip ring cavity and prevents passage of ignition inducing elements from the alternator.

Rotating electrical machine for a motor vehicle

A rotating electrical machine, in particular to an alternator (A) or to an alternator-starter, for a motor vehicle, comprising: a rotor ( 2 ) supporting a front fan ( 23 ) at the front and a rear fan ( 24 ) at the rear, the rotor being rotatable about an axis of rotation, a stator ( 4 ) comprising a stator body and at least one winding placed on the stator body, the winding forming front and rear chignons on either side of the stator body, and a casing ( 1 ) in which the stator and the rotor are placed.

Motor and fan motor

A motor includes a rotor rotatable about a center axis that extends vertically, a stator opposing the rotor in a radial direction, and a base portion opposing a lower surface of the stator in an axial direction. The base portion includes a lower lid portion extending in a direction orthogonal or substantially orthogonal to the center axis, a protruding portion protruding in the axial direction from an upper surface at a center of the lower lid portion, and a stator holding portion adjacent to the protruding portion in the axial direction and contactable with an inner circumferential surface of the stator. The protruding portion includes a first ventilation portion opening downward at the center of the lower lid portion and a second ventilation portion to cause the protruding portion to communicate with the first ventilation portion.

Motor And Airflow Generating Device

A motor and an airflow generating device using the motor are provided. A stator of the motor includes a barrel-shaped core with a stator winding wound therearound. A rotor of the motor includes outer and inner barrels, first permanent magnets mounted to the outer barrel, and second permanent magnets mounted to the inner barrel. The barrel-shaped core is located between the first and second permanent magnets. At least one of the outer and inner barrels includes first and second barrel sections that are separately formed, and the first and second barrel sections are stacked and fixed together along an axial direction of the motor. The connecting portion is integrally formed with at least a portion of the outer barrel and at least a portion of the inner barrel. This invention facilitates fabrication of the motor.

Motor with heat dissipation structure capable of restraining temperature therein

A motor includes a substantially cylindrical housing, a rotor assembly, a cover, a sleeve, and a cooling fan. The cooling fan is installed at one end of a rotating shaft of the rotor assembly to induce airflow. The sleeve, being closely fitted around the housing, is integrally formed with a plurality of wind-caching projections, each of which is located above one upstream through hole defined on the housing and faces towards the cooling fan. The wind-catching projections can receive the airflow induced by the cooling fan and guides the airflow to enter the housing via the upstream through holes to dissipate the heat accumulated in the motor, so that the motor can be prevented from damages due to heat accumulation. Therefore, the performance and service life of the motor can be increased.

ELECTRIC WORKING MACHINE AND METHOD FOR ASSEMBLING THE SAME

An electric working machine and method for assembling the same that do not require specific jigs, so as to facilitate assembling work and reduce man-hours and production cost. A motor assembly is relatively inserted into a body casing, with a mounting base disposed behind a partitioning wall portion allowing a tubular fixture to project through an insertion hole toward the front of the partitioning wall portion, and a temporarily securing mechanism temporarily secures the motor assembly to retain the position of the motor assembly by automatically moving it in rotating and two orthogonal directions on a plane along the partitioning wall portion, so as to coaxially arrange the tubular fixture and insertion hole, and through-hole and screw hole of the mounting base for screwing the bolt. In such a temporarily secured state, the motor assembly is finally secured by screwing the bolt through the through-hole into the screw hole of the mounting base. 1. An electric working machine comprising:a motor as a driving source for operation;a body casing in which the motor is disposed in a longitudinal direction, the body casing having a single cylindrical body with an open front end and an open rear end and with a partitioning wall portion that partitions an inside of the body casing into a front portion and a rear portion;an operating rod provided with a working part; and a mounting base disposed behind the partitioning wall portion and is securely fastened to the partitioning wall portion, with at least one bolt screwed from a front side to a rear side of the partitioning wall portion through a through-hole provided in the partitioning wall portion; and', 'a tubular fixture for securing a proximal end of the operating rod, the tubular fixture projecting from the mounting base toward a front of the partitioning wall portion through an insertion hole provided in the partitioning wall portion,, 'a rod fixture for securely attaching the operating rod to the body casing, the rod ...

ELECTRIC WORKING MACHINE

An electric working machine capable of efficiently cooling components disposed inside, as well as simplifying assembling work and reducing man-hours and production cost. A motor, control board for controlling the motor, rod fixture secured to the front side of the motor, and air guiding partitioning member secured to the rear side of the motor form a motor assembly. The air guiding partitioning member includes a partitioning plate hermetically partitioning between air exhaust and intake ports provided with a predetermined interval longitudinally in the body casing. The partitioning plate has an air guiding window for delivering cooling air taken in from the air intake port to an opening for sucking air on the front side of the motor through a space between the motor and body casing. The control board is disposed on the rear side of the partitioning plate. 1. An electric working machine comprising:a motor as a driving source for operation;a body casing in which the motor is disposed in a longitudinal direction;an operating rod provided with a working part; anda rod fixture for securely attaching the operating rod to the body casing,wherein:the motor, a control board for controlling the motor, the rod fixture secured to a front side of the motor, and an air guiding partitioning member secured to a rear side of the motor form a motor assembly,the air guiding partitioning member includes a partitioning plate that hermetically partitions between an air exhaust port and an air intake port provided with a predetermined interval in the longitudinal direction in the body casing, the partitioning plate provided with an air guiding window for delivering cooling air taken in from the air intake port to an opening for sucking air on the front side of the motor through a space between the motor and the body casing, andthe control board is disposed on a rear side of the partitioning plate.2. The electric working machine according to claim 1 , wherein the air exhaust port and the ...

OFFSET BASE FOR ROUTER

The present invention provides, in one aspect, a router including a motor unit and a base configured to selectively receive the motor unit to support the router on a work piece surface. The motor unit includes a motor and a spindle configured to output a torque supplied by the motor. The base includes an input shaft configured to selectively couple to the spindle, an output shaft laterally offset from the input shaft, and a belt. The input shaft includes a first pulley and the output shaft includes a second pulley and a tool holder. The belt wraps around the first and second pulleys to rotationally couple the input shaft to the output shaft. When the motor unit is received into the base, the spindle couples to the input shaft. 1. A router comprising:a motor unit including a motor and a spindle configured to output a torque supplied by the motor; and an input shaft configured to selectively couple to the spindle, the input shaft including a first pulley;', 'an output shaft laterally offset from the input shaft, the output shaft including a second pulley and a tool holder; and', 'a belt wrapped around the first and second pulleys to rotationally couple the input shaft to the output shaft;, 'a base configured to selectively receive the motor unit to support the router on a work piece surface, the base including'}wherein when the motor unit is received into the base, the spindle couples to the input shaft.2. The router of claim 1 , further comprising an adapter bit configured to attach to the spindle and configured to couple the spindle to the input shaft.3. The router of claim 2 , wherein the adapter bit includes a first connection member claim 2 , and the input shaft includes a second connection member that engages the first connection member to couple adapter bit to the input shaft.4. The router of claim 3 , wherein the adapter bit includes a threaded bore that threadably receives the spindle.5. The router of claim 3 , wherein one of the first connection member or ...

ELECTRIC COOLANT PUMP

An electric coolant pump includes a pump housing, an electric motor, and a pump wheel. The pump housing includes a pumping chamber and a motor chamber. The pumping chamber includes an inlet, an outlet, and a pump volute which extends from the inlet to the outlet. The pump volute has a volute cooling sector having a radial width to axial height ratio of >1.5. A separation sidewall having a cooling section fluidically separates the motor chamber from the pumping chamber. The electric motor has a motor stator which is arranged in the motor chamber, a rotating motor rotor, and a motor electronics which is arranged in the motor chamber axially adjacent to the volute cooling sector and in a thermal contact with the cooling section. The motor electronics energizes the static motor stator. The pump wheel is arranged in the pumping chamber and is connected with the motor rotor. 18-. (canceled)9. An electric coolant pump comprising: [ a radially inner pump inlet,', 'a radially outer pump outlet, and', 'a pump volute which is arranged to extend from downstream of the radially inner pump inlet to the radially outer pump outlet, the pump volute comprising a volute cooling sector which comprises a radial width to axial height ratio of >1.5, and, 'a pumping chamber which is configured to be filled with a coolant during a pump operation, the pumping chamber comprising, 'a motor chamber which is fluidically separated from the pumping chamber by a separation sidewall which extends substantially in a radial plane, the separation sidewall comprising a cooling section;', 'an electric motor comprising,', 'a static motor stator which is arranged in the motor chamber,', 'a motor rotor which is configured to rotate, and a motor electronics which is arranged in the motor chamber axially adjacent to the volute cooling sector of the pump volute and in a thermal contact with the cooling section of the separation sidewall, the motor electronics being configured to energize the static motor ...

Rotary driving apparatus

A rotary driving apparatus includes a motor including a rotor and a stator, a first temperature sensor that detects a stator's temperature and issues a first detection signal including stator's temperature information, a housing accommodating the motor, a cooling medium supply provided in the housing to supply a cooling medium to the motor, an open-close valve provided at a housing's lower portion to open to store the cooling medium inside the housing and close to discharge the cooling medium from the housing, and a controller that predicts a stator's temperature change on the basis of the first detection signal to close, if the stator's temperature is predicted to exceed a motor's operation guarantee temperature, while the motor is driven at an operating point within a motor's time rating region, the open-close valve before starting motor's output restriction, to thereby increase a stored cooling medium amount inside the housing.

Concrete vibrator with endcaps

A concrete vibrator motor includes a motor assembly that provides actuation and a cage assembly that surrounds the motor assembly to shield it and provide one or more operator handles. The motor assembly includes a motor housing, a motor pod, and a plurality of brushes that are used to secure the motor pod within the motor housing. The cage assembly includes a pair of endcaps and handles arranged beneath the endcaps. The endcaps are configured to inhibit fluid ingression into the motor housing while permitting air circulation between the ambient environment outside of the motor housing and within the motor housing. Thus, the motor assembly may intake air into the motor housing and exhaust air therefrom without contamination from the ambient environment.

ROTARY ELECTRIC MACHINE WITH LIGHTENED ROTOR

Electric machine having: a shaft; a rotor with permanent magnets that is fitted to the shaft; a stator having a magnetic core which consists of a series of laminations made of ferromagnetic material and longitudinally crossed by a plurality of stator slots; and a stator winding having a plurality of rigid bars that are inserted in corresponding stator slots and that are covered, on the outside, with an insulating coating. The rotor has a plurality of magnetic elements, which are arranged beside one another around the rotation axis so as to form a closed ring. Each magnetic element is formed by a plurality of permanent magnets which are axially arranged one after the other according to a Halbach array. 11) An electric machine () comprising:{'b': 2', '3, 'a shaft (), which is mounted so as to rotate around a central rotation axis ();'}{'b': 4', '2', '2, 'a rotor () with permanent magnets which is fitted to the shaft () so as to rotate together with the shaft ();'}{'b': 5', '4', '4', '6', '7, 'a stator () with a tubular, cylindrical shape, which is arranged around the rotor () so as to enclose, on the inside, the rotor () and has a magnetic core (), which consists of a series of laminations made of a ferromagnetic material and is longitudinally crossed by a plurality of stator slots (); and'}{'b': 8', '9', '7', '14, 'a stator winding () comprising a plurality of copper rigid bars (), which are inserted in corresponding stator slots () and are covered, on the outside, with an insulating coating ();'}{'b': 4', '22', '3, 'wherein the rotor () comprises a plurality of magnetic elements (), which are axially oriented, arranged beside one another around the rotation axis () so as to form a closed ring, and all have a similar magnetic configuration; and'}{'b': 22', '23, 'wherein each magnetic element () is formed by a plurality of permanent magnets () which all have a same shape, axially arranged one after the other and have polarities oriented in a different way according to ...

Motor cover for vacuum cleaner, motor module of vacuum cleaner, and vacuum cleaner

Disclosed are a motor cover for a vacuum cleaner, a motor module of a vacuum cleaner, and a vacuum cleaner. The motor cover has an inlet and an outlet, the motor cover is configured to mount an electric blower, and an air inlet end of the electric blower is configured to be disposed towards the inlet; the motor cover is provided with a plurality of flow guiding channels therein, and the plurality of flow guiding channels are sequentially communicated; one of the flow guiding channels is communicated with an air outlet end of the electric blower, and another flow guiding channel is communicated with the outlet; at least two of the plurality of flow guiding channels are arranged along an axial direction of the electric blower and guide airflow along a circumferential direction of the electric blower.

Protective cover for a rotating electric machine for a motor vehicle

The present invention concerns a protective cover ( 400 ) designed to cover power, filtering and control modules of an electronic assembly for a rotating electric machine for a motor vehicle. Said protective cover ( 400 ) is characterised in that it comprises: openings ( 401, 402, 403, 404 ) designed to generate different cooling air streams (F 1 , F 2 , F 3 , F 4 ) for heat dissipation requirements of each of the power, control and filtering modules; the openings of the protective cover ( 400 ) being distributed into: a first set of openings ( 401 ) designed to be positioned facing the fins of a first heat sink coupled to the power module; a second set of openings ( 402 ) designed to be positioned facing the control module; the two sets of openings ( 401, 402 ) being separated by a barrier wall ( 405 ) so as to create a first radial cooling air stream (F 1 ) for said power module and a second radial cooling air stream (F 2 ) for said control module; and a third set of openings ( 403 ) designed to be positioned facing the fins of a second heat sink coupled to condensers of the too filtering module so as to create a third radial cooling air stream (F 3 ) for said filtering module.

Electric motor for vehicle

In an electric motor for a vehicle, a fan integrally rotatable with a rotor is located on one end in a direction of the axis of the rotor, a bracket for accommodating the fan is joined on one end in the direction of the axis of a stator frame for accommodating a stator, and the bracket is provided with an outside air inlet and a dust emission outlet. The bracket is provided with an expanded section which has an inner peripheral surface bulging on an outer peripheral side in a radial direction beyond a peripheral surface of the stator frame, and at least a part of the dust emission outlet opens to the inner peripheral surface of the expanded section.

Motor having improved stator core

An induction motor assembly includes a motor. The motor includes a rotor rotatable about a rotor axis, and a stator at least substantially circumscribing the rotor. The stator includes a generally toroidal core. The core includes a generally circumferential yoke and a plurality of arcuately spaced apart teeth extending radially inwardly from the yoke. The tooth length is at least three (3) times the yoke thickness.

Rotating electric machine

A rotating electric machine includes a machine main body, a frame member and a rectifier. The machine main body is configured to generate alternating current. The frame member holds the machine main body. The rectifier is provided axially outside the frame member and has a rectification circuit configured to rectify the alternating current generated in the machine main body into direct current. The rectifier includes first and second heat sinks that are located to axially overlap each other, first rectifying elements mounted to the first heat sink and constituting an upper arm of the rectification circuit, and second rectifying elements mounted to the second heat sink and constituting a lower arm of the rectification circuit. The second heat sink is located closer than the first heat sink to the frame member. The surface area of the second heat sink is greater than the surface area of the first heat sink.

INTEGRATED ELECTRO-HYDRAULIC MACHINE

An integrated electromechanical and hydraulic system is disclosed which includes an electric machine, the electric machine includes a casing, a stator adapted to remain stationary within the casing, one or more electrically insulated windings coupled to the stator, a rotor separated from the stator and the one or more windings by a radial diamagnetic gap, electrical power couplings, and a first mechanical power couplings, and a hydraulic machine also disposed in the housing, the hydraulic machine having hydro-mechanical couplings as well as a second mechanical power couplings, wherein the second mechanical power couplings are coupled to the first mechanical power couplings. 1. An integrated electromechanical and hydraulic system , comprising: a casing,', 'a stator adapted to remain stationary within the casing,', 'one or more electrically insulated windings coupled to the stator,', 'a rotor separated from the stator and the one or more windings by a radial diamagnetic gap,', 'electrical power couplings, and', 'a first mechanical power couplings; and, 'an electric machine, the electric machine comprisinga hydraulic machine also disposed in the housing, the hydraulic machine having hydro-mechanical couplings as well as a second mechanical power couplings, wherein the second mechanical power couplings are coupled to the first mechanical power couplings.2. The integrated electromechanical and hydraulic system of claim 1 , the first and second mechanical power couplings are the same.3. The integrated electromechanical and hydraulic system of claim 2 , wherein the first and second mechanical power couplings is a rotary flange.4. The integrated electromechanical and hydraulic system of claim 1 , wherein the hydraulic machine includes a low-pressure inlet and a high-pressure outlet adapted to communicate a working fluid at a corresponding fluid pressure therebetween.5. The integrated electromechanical and hydraulic system of claim 4 , wherein the hydraulic machine ...

Drive apparatus for sewing machines

A drive apparatus for sewing machines including a forepart and a motor shaft horizontally projecting out of the forepart is provided with a sleeve releasably secured to the motor shaft; a rotor disposed on the sleeve; and a motor assembly including a housing having an axial passage with the sleeve rotatably disposed through, an inner space disposed on an end of the housing proximate the forepart, and a stator set disposed in the inner space. The rotor is disposed in the inner space. The rotor, the sleeve, and the motor shaft are co-rotated.

Electrical Machine with Electric Motor and Magnetic Gear

The invention relates to an electrical machine, in particular an electric drive unit comprising an electric motor and a magnetic gear. In accordance with one embodiment the electrical machine has the following: a housing, a first shaft arranged in the housing, by means of which first shaft a first permanent magnet assembly and a second permanent magnet assembly are rigidly connected, and a stator arranged internally on the housing, which stator together with the first shaft forms the electric motor. The electrical machine also has a tubular machine element with a plurality of ferromagnetic pole shoes, into which the first shaft is at least partially inserted, such that the first shaft is situated coaxially with the tubular machine element and the second permanent magnet assembly is situated within the tubular machine element. The first shaft is mounted at a first end on the tubular machine element by means of a first bearing inside the tubular machine element. An annular third permanent magnet assembly is arranged around the tubular machine element so that the second permanent magnet assembly, the tubular machine element and the third permanent magnet assembly form the magnet gear. Either the tubular machine element is mounted rotatably on the housing and the annular third permanent magnet assembly is rigidly connected to the housing, or the tubular machine element is rigidly connected to the housing and the annular third permanent magnet assembly is mounted rotatably on the housing. 110-. (canceled)11. An electric machine , comprising:a housing;a first shaft arranged in the housing and to which a first permanent magnet arrangement and a second permanent magnet arrangement are rigidly connected;a stator arranged on an inside of the housing which, together with the first shaft, forms an electric motor;a tubular machine element with a plurality of ferromagnetic pole pieces and in which the first shaft is at least partially inserted such that the first shaft is ...

Embedded permanent magnet rotary electric machine

Ventilation apertures are respectively formed circumferentially so as to pass axially through an inner circumferential side of a rotor core, rotor grooves are respectively formed circumferentially on an outer circumferential surface of the rotor core so as to have groove directions in an axial direction, and a centrifugal fan is fixed to the shaft at an end of the rotor core near the front frame, and a cyclic path is formed in which, during operation of the centrifugal fan, cooling air flows into the ventilation apertures from near a rear frame, passes through the ventilation apertures and flows out near the front frame, flows radially outward near the front frame and flows into the rotor grooves, passes through the rotor grooves and flows out near the rear frame, and flows radially inward near the rear frame and flows into the ventilation apertures.

Driving device

A driving device includes a motor and a gearbox. The gearbox includes a first sun gear, first planetary gears surrounding and engaged with the first sun gear, and a first internal gear ring surrounding and engaged with the first planetary gears. The first sun gear is coaxially fixed to a rotary shaft of the motor. Meshing planes of the first sun gear and the first planetary gears are slanted with respect to the rotary shaft. Each of the first planetary gears is subjected to an externally-exerted first force and exerts a transverse component of force toward the rotary shaft on the first sun gear. The motor structure of the driving device is simplified, which makes the driving device have a more compact structure, lighter weight and lower cost.

Electric compressor

An electric compressor includes a housing, an electric motor, and an inverter. The housing includes a motor chamber. The electric motor includes a stator that includes a stator core, a plurality of first coils, a plurality of second coils, and a plurality of third coils. The first coils are connected in series, the second coils are connected in series, and the third coils are connected in series. One of the first coils that is located electrically closest to the first phase is referred to as a first specific coil, one of the second coils that is located electrically closest to the second phase is referred to as a second specific coil, and one of the third coils that is located electrically closest to the third phase is referred to as a third specific coil. The first to third specific coils are disposed above the shaft center of the drive shaft.

Motor for drone and drone including same

The present invention provides a motor for a drone, comprising: a rotary shaft; a stator including a hole into which the rotary shaft is inserted; and a rotor arranged on the outer side of the stator, wherein the rotor comprises: a cover part coupled to the rotary shaft so as to cover the upper portion of the stator; a body part for covering a side portion of the stator; and a magnet coupled to the inner circumferential surface of the body part, wherein the cover part comprises: a propeller coupling part including a hole through which the rotary shaft penetrates; an upper surface part connected to the body part; a connecting part for connecting the propeller coupling part and the upper surface part; and a plurality of blades arranged in the radial direction from the lateral surface of the propeller coupling part and formed so as to be spaced apart from the upper surface part. Therefore, the present invention provides the advantageous effects of preventing water or foreign material from permeating into the motor while ensuring an air passage for heat dissipation.

Cooling apparatus and system for engine components

An engine component cooling system and apparatus, at least one fan and a cover are installed upon the engine component. The fan pulls cool air and force cool air through the component assembly to reduce the heat generated through operation, thereby optimizing operation and extending the useful life of the individual components and the assembly. In one example, a fan and a cover are installed on an alternator assembly so that the fan draws in and forces cool air through the rectifier, rotor, stator, and out through the front of the assembly. The cover prevents cool air from being lost and misdirected, while directing the cool air through the assembly.

MIXER

For vertical downsizing, a mixer includes a motor including a stator and a rotor, a motor housing accommodating the motor, a reducer driven by the rotor, a reducer housing below the motor housing and accommodating the reducer, a shaft holder protruding downward from the reducer housing to hold a mixer shaft, and a controller that controls the motor. The controller is vertically on the same level as the motor. 1. A mixer for holding a mixer shaft , the mixer comprising:a motor including a stator and a rotor;a motor housing accommodating the motor;a reducer driven by the rotor;a reducer housing below the motor housing and accommodating the reducer;a shaft holder protruding downward from the reducer housing to hold the mixer shaft; anda controller configured to control the motor, the controller being vertically on the same level as at least a part of the motor.2. The mixer according to claim 1 , whereinthe rotor includes a rotational shaft, andthe motor is accommodated in the motor housing with the rotational shaft extending vertically.3. The mixer according to claim 2 , whereinthe controller extends vertically in the motor housing.4. The mixer according to claim 2 , whereinthe controller is vertically within a vertical dimension of the rotational shaft.5. A mixer for holding a mixer shaft claim 2 , the mixer comprising:a motor including a stator and a rotor;a motor housing accommodating the motor;a reducer driven by the rotor;a reducer housing below the motor housing and accommodating the reducer;a shaft holder protruding downward from the reducer housing to hold the mixer shaft; anda controller configured to control the motor, the controller extending vertically in the motor housing.6. The mixer according to claim 5 , whereinthe rotor includes a rotational shaft, andthe motor is accommodated in the motor housing with the rotational shaft extending vertically.7. The mixer according to claim 6 , whereinthe controller is vertically within a vertical dimension of the ...

External fan and drive end housing for an air cooled alternator

An external centrifugal fan and drive end frame for use in an air cooled alternator are provided. Also provided is a vented pulley.

ROTOR MOUNTING UNIT HAVING A COOLING FUNCTION

The disclosure relates to a rotor assembly () having an integrated heat conducting channel for a high-speed radial ventilator, comprising a bearing tube () which is axially open on the inside and in which a shaft () that supports a ventilator wheel () is mounted on bearings (). Shaft comprises a rotor () of a canned motor, wherein the bearing tube () has an outwardly protruding radial projection (), a heat dissipation portion () of which at least partially extends beyond the outer circumference () of the ventilator wheel (), and which provides an integrated heat conducting channel that extends from the bearing () to the heat dissipation portion (). 11020403024255020212331302423. A rotor assembly () having an integrated heat conducting channel for a high-speed radial ventilator , comprising a bearing tube () which is axially open on the inside and in which a shaft () that supports a ventilator wheel () is mounted on bearings ( , ) , which shaft comprises a rotor () of a canned motor , wherein the bearing tube () has an outwardly protruding radial projection () , a heat dissipation portion () of which at least partially extends beyond the outer circumference () of the ventilator wheel () , and which provides an integrated heat conducting channel that extends from the bearing () to the heat dissipation portion ().21021. The rotor assembly () according to claim 1 , characterized in that the projection () is formed as a substantially round plate-shaped projection claim 1 , the diameter Dof which is larger than the diameter Dof the ventilator wheel.31021233230. The rotor assembly () according to claim 1 , characterized in that the projection () has an outer circumferential collar () which extends in the axial direction and radially outwardly encloses a radial edge region () of the ventilator wheel () at least partially or across the entire circumference.410402420252030504440302. The rotor assembly () according to claim 1 , characterized in that the shaft () is mounted on ...