Abstract: The utility model relates to the technical field of motor structures, and particularly relates to a stator winding, a stator and a motor. The stator winding is formed by winding a flat wire, a part of the flat wire is wound to form at least two coils arranged at intervals, and the coils are consistent in winding direction and located on the same side of the flat wire. By using the solution, the technical effects of integrally forming the stator winding and sharing a flat wire by the coils located on the stator winding are achieved.

Abstract: The present disclosure provides for an electric motor that comprises a housing and a shaft disposed through the housing. The electric motor further comprises a rotor fitted on the shaft within the housing and a stator disposed within the housing and around the rotor. The electric motor further comprises a fan covering disposed on a first end of the housing and a first bearing cap disposed at the first end of the housing, wherein the first bearing cap is configured to house a first bearing, wherein the first bearing cap comprises a plurality of protrusions configured to operate as a heat sink for the electric motor. The electric motor further comprises a first fan disposed at an end of the shaft and within the fan covering, wherein the first fan is operable to generate a first airflow configured to flow over an external surface of the housing.

Abstract: A motor includes a rotor having a shaft, a rotor core, and a permanent magnet, and a stator surrounding the rotor. The permanent magnet forms a magnet magnetic pole, a part of the rotor core forms a virtual magnetic pole. The motor includes first and second bearings support the shaft, and further includes first and second bearing support portions. Of the first and second bearings, the first bearing is located on the load side. A distance D1 from the center axis to the inner circumferential surface of the first bearing support portion, a distance D2 from the center axis to the inner circumferential surface of the second bearing support portion, a distance d1 from the center axis to the outer circumferential surface of the first bearing, and a distance d2 from the center axis to the outer circumferential surface of the second bearing satisfy D1?d1<D2?d2.

Abstract: A fan motor according to an embodiment includes a bearing holder, a stator, a circuit board, and a synthetic resin. The stator is mounted at an outer circumference of the bearing holder. The circuit board is electrically connected to a coil of the stator, is mounted at a surface of the base part at an opposite side to the bearing holder, and extends from a base part to a connector housing. The synthetic resin seals the bearing holder, the stator, and the circuit board, except for both end faces of the bearing holder. The connector housing has a gate opening that is injected with the synthetic resin at the time of sealing and ribs that are at an opposite side to the gate opening with the circuit board between the ribs, and tops of the ribs making contact with the circuit board.

Abstract: A power tool including a housing, a motor having a rotor and a stator, at least one grip sensor configured to generate a grip parameter, and a switching network electrically coupled to the brushless DC motor. An electronic processor is connected to the switching network and the at least one grip sensor and configured to implement kickback control of the power tool. The electronic processor is configured to determine a kickback threshold based on the grip parameter, control the switching network to drive the motor, receive a signal related to a power tool characteristic, determine, based on the power tool characteristic being greater than or equal to the kickback threshold, that a kickback event of the power tool is occurring, and control, in response to determining that the kickback event is occurring, the switching network to cease driving of the motor.

Abstract: An example system includes a housing configured to house a portion of an electric machine and a heat transfer material, the heat transfer material is configured to contact a conductor of the portion of the electric machine and to remove heat from the conductor and transfer heat to the housing. The system includes a coolant configured to remove heat from the housing. An inner surface of the housing comprises a plurality of structures configured to increase an inner surface area of the housing, wherein the plurality of structures are configured to contact the heat transfer material.

Abstract: A brushless direct-current (BLDC) motor is provided. The motor includes a stator including a stator core, stator teeth, and windings; a rotor shaft disposed within the stator and extending along a longitudinal axis; and a rotor. The rotor includes a rotor core having a cylindrical body, a permanent magnet ring mounted on an outer surface of the cylindrical body with no intermediate adhesive therebetween, and metal sleeve securely fitted outside the permanent magnet ring. The metal sleeve includes a flange extending radially inwardly that covers an axial end of the permanent magnet ring and is bonded to the rotor core to secure the permanent magnet ring to the rotor core.

Abstract: The present disclosure relates to an electric motor having a stator and a rotor. The rotor is fitted with permanent magnets which are surrounded by a rotor packet. A heat dissipating element is attached to the rotor packet. A gap seal is formed between an outer diameter of the heat dissipating element and an inner diameter of a component connected to the stator. In some examples, the component may be a coil body connected to the stator.

Abstract: An electric machine may include a housing that encloses both a radial motor producing radial flux in a first direction, the radial flux influences a first magnetic unit to produce a first torque on a rotor arm attached to a shaft. The housing can also include an axial motor producing axial flux in a second direction to influence a second magnetic unit to produce a second torque on the rotor arm attached to the shaft, wherein the radial motor and the axial motor are positioned in the housing to reduce cross magnetic flux from either the radial motor or the axial motor. The primary radial motor can include either a permanent magnetic motor or an induction motor. The secondary radial motor can include one of a permanent magnet motor, an induction motor, or a transverse flux motor. The current and phase of primary and secondary motors can be independently controllable.

Abstract: There are provided a coil, a stator member, a stator, and a motor that can, in the case of joining (connecting) a busbar and the coil's terminals, simplify control necessary for joining such as positioning, actualize downsizing of a device (welding device or stator manufacturing device), and improve efficiency of joining work. The coil is configured by winding a conductor, and its first and second terminals are extended out on a side of one surface of the coil.

Abstract: An object is to obtain a rotary electric machine, capable of reducing an eddy current loss which is caused in a magnet member provided in a stator. A rotor and a stator which is arranged to face to the rotor in a radial direction of the rotor are provided. The stator has a stator core, a stator coil, and a magnet member. The stator core has a core back and teethes, and the teethes protrude from the core back toward the rotor and are arranged along a circumferential direction. The stator coil is wound to each of the plurality of teethes, and is arranged in a slot formed between teethes lying next to each other in the circumferential direction. The magnet member is formed of a plurality of permanent magnets in each of the teethes.

Abstract: The present application relates to a cooling device, a motor, and a wind turbine set. The cooling device is integrated inside the motor and includes a housing extending along an axial direction of the motor, wherein the housing has a receiving cavity and an air inlet and an air outlet in communication with the receiving cavity, and the housing is in communication with an interior of the motor through the air inlet and in communication with the ventilation chambers at two axial ends of the motor through the air outlet; a heat exchanger located in the receiving cavity and provided close to the air outlet; and a circulation fan provided in the receiving cavity along the axial direction of the motor. The cooling device can realize a modular design of the cooling device, has a simple and compact structure, and occupies a small space.

Abstract: A rotating device according to the present invention comprises a motor, a connection terminal electrically connecting the motor with an external device, and a housing accommodating the motor and the connection terminal. The connection terminal includes a bent portion bent in a direction crossing an insertion direction or a removal direction of the connection terminal. The housing includes a contact surface in contact with the bent portion.

Abstract: In an actuator, damper members which connect a movable member and a fixed member are arranged at two places between the end portion of the shaft of the movable member on an L1 side and the opening portion of the first holder of the fixed member and between the end portion of the shaft of the movable member on an L2 side and the opening portion of a second holder. Each of the damper members includes a gel damper member serving as a connection member which is continuously arranged in a gap in a radial direction between the movable member and the fixed member over the entire circumference. In the gel damper member, an inner circumferential portion is fixed to the shaft through a cylindrical first member, and an outer circumferential portion is fixed to the fixed member through a cylindrical second member.

Abstract: Electric motors and methods of controlling electric motors are described herein. The electric motors include a mobile component having at least one permanent magnet coupled thereto and a stator spaced apart from the mobile component. The stator includes at least one stator pole having a ferromagnetic core and a coil wrapped around the ferromagnetic core. The ferromagnetic core is naturally attracted to the at least one permanent magnet. The motors also include a magnetic position control system configured to monitor a position of the at least one permanent magnet relative to the stator and controllably deliver an electric pulse to the coil of each stator pole to generate a repulsive magnetic flux on the ferromagnetic core to cancel an attraction force between the ferromagnetic core and the at least one permanent magnet to control movement of the mobile component.

Abstract: A motor includes a shaft, at least two bearings supporting the shaft, a magnet supported by the shaft between the at least two bearings, a stator surrounding the magnet, and a magnetic member arranged between the magnet and at least one of the bearings in a longitudinal direction of the shaft. The magnetic member has a large outer diameter with respect to an outer diameter of the magnet.

Abstract: A stator includes stator iron cores stacked in a rotor axial direction, and an interphase insulating member arranged between the stator iron cores. Each of the stator iron cores includes a circular back yoke and a stator claw magnetic pole that protrudes from the back yoke in a rotor radial direction. The interphase insulating member includes an insulating portion, arranged between adjacent ones of the stator iron cores, and a support. The stator claw magnetic pole is in contact with the support in at least one of a rotor circumferential direction and the rotor radial direction.

Abstract: An electric propulsion system comprising an electric motor assembly. The electric motor assembly may include a housing having an internal volume, a stator ring disposed about a perimeter of the internal volume, and a rotor positioned within the stator. The electric motor assembly may include a main shaft connected to the rotor via a gear reduction, wherein the main shaft extends through the rotor. The electric motor assembly may include a collar connected to the main shaft, wherein the collar encircles the main shaft, and at least a portion of the collar is configured to direct a fluid away from the main shaft and toward the stator ring.

Abstract: A motor unit according to an aspect of the present invention includes: a motor having a rotor that rotates about a motor axis and a stator located radially outside the rotor; an inverter that controls a current to be supplied to the motor; and a housing having a motor housing portion that houses the motor and an inverter housing portion that houses the inverter. The housing further includes an inverter housing provided with a top plate portion covering an opening of the inverter housing portion. The inverter is fixed to a back surface of the top plate portion, facing the inside of the inverter housing portion.

Abstract: This vehicle-mounted electric compressor is provided with a compressor body including a motor for compressing a refrigerant, and an inverter including a power element for supplying the motor with electric current. The power element is provided with: a metal substrate having an electrically conductive layer in a partial region of the surface thereof; a heat-generating element having a metal layer solder-fixed to the electrically conductive layer; and a resin substrate which is disposed in parallel with the metal substrate in a plate thickness direction of the metal substrate, and has a metal pattern printed on the surface thereof, the metal pattern having an electronic component mounted thereon. The electronic component and a terminal of the heat-generating element are connected by means of the metal pattern.