Abstract: A cooling mechanism for a vehicle electric motor. The cooling mechanism includes: a coolant oil passage provided between a rotor core and a rotor shaft of the electric motor; an oil supply passage provided inside the rotor shaft and communicating with the coolant oil passage; and at least one first discharge port and at least one second discharge port provided in respective first and second end plates disposed on respective opposite sides of the rotor core. The coolant oil passage includes a first passage portion communicating with the at least one first discharge port, and a second passage portion communicating with the at least one second discharge port. Each of the at least one first discharge port is located in a position that is different from a position of any one of the at least one second discharge port as seen in an axial direction of the rotor shaft.

Abstract: A rotary electric machine including a rotor including a rotor core; permanent magnets to be embedded in the rotor core; and a one end-side end plate configured to support one end side of the rotor core. The rotor core has rotor refrigerant passages through which refrigerant for cooling the permanent magnets flows in an axial direction of the shaft. The one end-side end plate has an end plate refrigerant passage communicating with the rotor refrigerant passages. The end plate refrigerant passage has refrigerant reservoirs, each projecting to an outer side in a radial direction of the shaft.

Abstract: A medium conveying and heat exchange device and a vortex flow separator for an iron core of an electromagnetic device is provided. The vortex flow separator includes a jet pipe and a vortex flow separation pipe, the vortex flow separation pipe includes a vortex flow chamber, a cold end pipe section and a hot end pipe section. Compressed airflow flows through the jet pipe to form spiral airflow and flow into the vortex flow chamber in a tangential direction thereof. A valve having a cone-shaped surface is arranged inside the hot end pipe section, central airflow of the spiral airflow passes by the cone-shaped surface of the valve and flows back, and is cooled to become cold airflow, and then flows out from the cold end pipe section, to serve as cooling and drying airflow of the input electromagnetic device.

Abstract: The present disclosure provides a motor structure including a winding set, a rotor and a motor base. The rotor is driven by the winding set. The motor base includes a central portion, a surrounding portion and at least one connecting element. The central portion is configured to dispose the winding set thereon. The surrounding portion is disposed around the central portion. The connecting element is deformable and connected between the central portion and the surrounding portion. The connecting element includes a first supporting part, a second supporting part and a deformation part. The first supporting part and the second supporting part are connected with the central portion and the surrounding portion, respectively, and the deformation part is connected therebetween. The hardnesses of the first supporting part and the second supporting part are greater than or equal to those of the central portion and the surrounding portion, respectively.

Abstract: An electrical machine is provided including a stator assembly having a stator core and a plurality of windings. A rotor assembly is arranged concentrically with the stator assembly and is configured to rotate about an axis. The rotor assembly includes a rotor core and a cage surrounding a periphery of the rotor core. The cage includes a plurality of impeller fins positioned adjacent at least one end of the rotor core.

Abstract: A vehicle drive device includes: a first rotary electric machine; a second rotary electric machine that is arranged below the first rotary electric machine; and a case having a rotary electric machine housing portion that houses the first rotary electric machine and the second rotary electric machine. The first rotary electric machine and the second rotary electric machine are cooled by a refrigerant flowing inside the case, and in the rotary electric machine housing portion, a guide portion that prevents the refrigerant, which has cooled the first rotary electric machine, from being applied to the second rotary electric machine is provided.

Abstract: To provide a motor inhibiting emission of electromagnetic noise (EMC) to the outside and a rotary apparatus including the motor. The rotary apparatus (10) of the present disclosure includes: a housing (20); a motor (40) arranged inside the housing (20); a circuit board (50) arranged inside the housing (20) and electrically connected to the motor (40); and a flexible wiring board (44) electrically connecting the motor (40) to the circuit board (50), the motor (40) including a frame (41a) formed with a conductive member, the frame (41a) electrically connected via the flexible wiring board (44) to a ground of the circuit board (50).

Abstract: A system is provided with a magnetic field sensor being positioned in a magnetic field of a magnet that is coupled to a rotatable driving shaft. The magnetic field sensor is configured to sense a rotation of the magnetic field in response to a rotation of the rotatable driving shaft, and generate an angle sensor signal based on an orientation angle of the magnetic field. The angle sensor signal includes angular values that represent an absolute orientation angle of the rotatable driving shaft. The system includes a memory storing a mapping of values of a patterned signal to the angular values, electronic circuitry configured to generate, based on the angular values and the stored mapping, the patterned signal, and a signal generator circuit configured to generate a signal representing the absolute orientation angle of the rotatable driving shaft based on the angle sensor signal.

Abstract: To obtain a rotating electric machine capable of suppressing vibrations generated at the time of driving and achieving downsizing. The rotating electric machine includes: a rotor; a stator including a stator core provided on an outer side with respect to the rotor in a radial direction of the rotor; a motor frame, which includes a tubular portion provided on an outer side with respect to the stator core in the radial direction, and has the stator fixed thereto; and an intermediate member, which is provided on an outer peripheral surface of the stator core in the radial direction, and is held in a state of being press-fitted to an inner peripheral surface of the tubular portion in the radial direction, wherein a stiffness of the intermediate member per unit length is higher than a stiffness of the tubular portion per unit length.

Abstract: A stator for an electric motor or generator, the stator comprising a circumferential support having a plurality of first engagement elements distributed about the circumferential support, a first resiliently deformable element having a first temperature sensing element mounted on the circumferential support, a plurality of teeth for receiving coil windings, wherein each tooth includes a second engagement element to allow engagement with a first engagement element on the circumferential support for allowing each tooth to be mounted on the circumferential support, wherein coil windings on a tooth are arranged to engage with the first temperature sensing element when the tooth is being mounted to the circumferential support with the first resiliently deformable element being arranged to deform upon the coil windings on the tooth engaging with the first temperature sensing element to move the temperature sensing element from a first position to a second position.

Abstract: An electric machine including a housing, and a stator mounted to the housing. The stator includes a plurality of laminations, a first end turn and a second end turn. A rotor shaft extends through the housing. A hybrid rotor module is coupled to the rotor shaft. The hybrid rotor module includes a clutch basket having a rotor carrier. The clutch basket houses one or more clutch assemblies. A rotor is mounted to the rotor carrier, and one or more openings are formed in the rotor carrier. The one or more openings direct coolant onto at least one of the stator, the first end turn, and the second end turn.

Abstract: The invention refers to a hand guided and/or hand held electric or pneumatic power tool (1, 1?), comprising an electric or pneumatic motor (15, 100), a working element (9) realizing a working movement (11), when the motor (15, 100) is activated, and at least one gear arrangement functionally located between the motor (15, 100) and the working element (9) for transmitting a rotational movement and torque from the motor (15, 100) to the working element (9) in order to realize the working movement (11). It is suggested that the at least one gear arrangement is embodied as a magnetic gear arrangement (20, 21, 41) using magnetic fields to transmit the rotational movement and torque from the motor (15, 100) to the working element (9) without mechanical contact, in order to realize the working movement (11).

Abstract: A motor includes a motor main body, a housing, a heat sink, a controller, a connector, and a cover that surrounds the controller and the connector. The heat sink includes a connector holder including an open outer side in a radial direction and holding the connector. The motor includes a ring-shaped cover joint portion that surrounds the controller and includes a stepped portion that includes a first surface and a second surface. The cover includes a cylindrical portion that faces the first surface in the radial direction. The motor includes a waterproof material that seals a portion between the cylindrical portion and the first surface or a portion between the cylindrical portion and the second surface.

Abstract: The present invention is intended to provide: a cooling jacket device 1 which offers excellent cooling performance, is easy to manufacture and enables cost reduction; and a rotary electric machine including the cooling jacket device.

Abstract: Provided are a motor sealing structure and a motor. The motor sealing structure comprises: a rotary shaft, a bearing, which is sleeved on the rotating shaft. A shaft shoulder structure is arranged on an outer peripheral wall of the rotating shaft at a position corresponding to the bearing along an axial direction of the rotating shaft, so as to form a cavity between a portion of the bearing and the shaft shoulder structure, and a fan blade structure, which is sleeved at one end of the rotating shaft and extends in the axial direction of the rotating shaft to the position of the bearing, and is inserted into and held in the cavity.

Abstract: The present disclosure provides a motor structure including a winding set, a rotor and a motor base. The rotor is driven by the winding set. The motor base includes a central portion, a surrounding portion, at least one connecting element and at least one limitation element. The winding set is disposed on the central portion. The surrounding portion is disposed around the central portion. The limitation element includes a first limitation part and a second limitation part disposed on the central portion and the surrounding portion, respectively. The connecting element is deformable and connected between the central portion and the surrounding portion. The connecting element includes a first supporting part and a second supporting part connected between a deformation part. The first supporting part, the second supporting part and the deformation part are cooperatively form a buffer zone between the first limitation part and the second limitation part.

Abstract: A gas turbine engine includes an electrical device and a microchannel cooling system in communication with the electrical device to remove heat.

Abstract: A slinger for an electric motor broadly includes a hub and a wheel. The motor includes a housing in which a stator and rotor are at least partly housed. The motor also includes a rotatable output shaft projecting upwardly through a shaft opening in the housing. The hub is fixedly attachable to the output shaft of the motor so that the slinger rotates with the output shaft. The wheel is configured to divert liquid radially away from the shaft opening. The wheel includes a wheel plate and a plurality of radially extending blades cooperatively forming a series of passages extending radially outward relative to the shaft opening, when the hub is attached to the output shaft. The wheel plate is supported by the hub so as to be positioned above the housing when the hub is attached to the output shaft. The blades present radially inboard ends intersecting the hub.

Abstract: A gearmotor includes a motor assembly, a gear assembly, and an electronics assembly. The motor assembly includes a rotor including a rotor shaft; a stator; and a stator retention apparatus. The stator includes a core defining a core orientation feature, and a plurality of coils. The stator retention apparatus includes an apparatus orientation feature and an electronics assembly support structure. The gear assembly includes an output shaft. The electronics assembly includes a rotor shaft rotation sensor that is radially spaced from a rotor shaft position indicium, an output shaft rotation sensor that is radially spaced from an output shaft position indicium, and a magnetic sensor mounted to the electronics assembly support structure. The core orientation feature and the apparatus orientation feature engage one another to position the stator retention apparatus radially and arcuately relative to the core, such that the magnetic sensor is positioned adjacent an axial coil margin.

Abstract: The present disclosure relates to hub apparatuses and associated systems. An embodiment of the hub apparatus includes a rotor assembly, a shaft, and a stator assembly. The rotor assembly includes first/second housing components and multiple magnets mounted on one or both of the first and second housing components. The stator assembly includes (1) a coil assembly positioned corresponding to the magnets; (2) a main circuit board fixedly coupled to the coil assembly; and (3) a battery assembly positioned inside the coil assembly and carried by the main circuit board.