Abstract: The present invention provides a coupler comprising: an inner insertion part including a through-hole; and an outer support part for encompassing the outside of the inner insertion part, wherein the inner insertion part includes a connection groove through which the outer support part passes, the outer support part includes at least one projection part protruding in the center direction of the through-hole, and the projection part includes a groove part.

Abstract: An electric motor is provided, comprising: a first magnetic component, a second magnetic component, and a circuit configured to electromagnetically activate at least one of the first magnetic component and the second magnetic component. The electromagnetic activation causes a change in a gap between the first magnetic component and the second magnetic component, the change in the gap resulting in rotation of at least one of the first magnetic component and the second magnetic component.

Abstract: In an electric driving apparatus, a first rotational angle detecting sensor that generates a signal that corresponds to rotation of a shaft is disposed between a controlling apparatus and a motor. A housing accommodates the motor, the controlling apparatus, and the first rotational angle detecting sensor together. A second rotational angle detecting sensor that generates a signal that corresponds to rotation of the shaft is disposed at a position that is further away from the motor than the controlling apparatus in the axial direction of the shaft, and is disposed outside the housing. The first rotational angle detecting sensor is a magnetic detecting element sensor that includes: a magnet rotating body that includes a magnet, and that rotates together with the shaft; and a magnetic detecting element that detects magnetism from the magnet. The second rotational angle detecting sensor is a resolver.

Abstract: A stand-alone motor unit includes a base having a first side and a second side adjacent the first side, an electric motor arranged in the base and including an output shaft, a power take-off shaft receiving torque from the motor and protruding from the second side of the base, a battery pack, and a battery module removably coupled to the base. The battery module includes a side wall and a battery receptacle for receiving the battery pack for providing power to the motor when the battery module is coupled to the base. The battery module is configured to be coupled to the base in a first position, in which the side wall of the battery module is parallel with the second side of the base, and in a second position, in which the side wall is perpendicular to the second side of the base.

Abstract: A PCU case of a power control unit includes a case main body that has an upper surface-side opening and a lower surface-side opening and is formed in a tubular shape with a rectangular cross-section, and an upper cover that covers the upper surface-side opening. The case main body includes a fastening part that is formed so as to surround the lower surface-side opening and fastened to a surface of a transaxle case, and this surface of the transaxle case doubles as a lower surface of the PCU case. The case main body includes a plate-shaped beam member that extends along a short-side direction, connects a pair of long-side side walls to each other, and divides the inside of the case main body into an upper chamber and a lower chamber, and an intermediate opening that provides communication between the upper chamber and the lower chamber.

Abstract: In some embodiments, the present invention may include, for example, systems, devices, and methods for power generation using a permanent magnet and/or an electro magnet installed on a twisted band wheel or wheels and/or installed on stationary discs and plates. Due to magnetic field forces for example between the stationary discs and the twisted band, the twisted band may be driven to move (e.g., rotate), rotation of the twisted band is optionally transferred by an axle to a generator.

Abstract: A cooling device for cooling a stator for an electric machine of a motor vehicle having a coolant-conducting unit and at least one winding groove cooling channel is provided. The coolant-conducting unit and the at least one winding groove cooling channel are connectable to a hollow-cylindrical lamination stack of the stator having, in a circumferential direction, a plurality of winding grooves which extend axially and receive windings of the stator. The coolant-conducting unit is arranged on an end face of the lamination stack, conducts coolant along the end face, and has an inlet for supplying the coolant and an outlet for discharging the coolant, and the at least one winding groove cooling channel extending axially from the coolant unit is arranged in at least one winding groove, conducts the coolant in the at least one winding groove, and is fluid-coupled to the inlet and the outlet.

Abstract: An in-wheel motor is disclosed including a stator and a rotor arranged around the stator, the stator including a cylindrical surface and coils with windings around axially oriented core members and including coil terminals, the motor further including a connector including at least two mutually isolated conductors arranged at the first end of the cylindrical surface near curved ends, the conductors each including a circumferential conducting body and a plurality of contact members extending from conducting the body and arranged for connecting to one of the terminals, wherein the circumferential conducting bodies are axially spaced apart from each other.

Abstract: A MEMS actuator includes a monolithic body of semiconductor material, with a supporting portion of semiconductor material, orientable with respect to a first and second rotation axes, transverse to each other. A first frame of semiconductor material is coupled to the supporting portion through first deformable elements configured to control a rotation of the supporting portion about the first rotation axis. A second frame of semiconductor material is coupled to the first frame by second deformable elements, which are coupled between the first and the second frames and configured to control a rotation of the supporting portion about the second rotation axis. The first and second deformable elements carry respective piezoelectric actuation elements.

Abstract: A rotary actuator includes a motor, an output shaft, and a speed reducer. The motor includes a motor shaft rotating about an axial direction. The output shaft is disposed in parallel with the motor shaft. The speed reducer reduces a rotational speed of the motor and transmits rotation of the motor at a reduced rotational speed to the output shaft. The speed reducer includes a parallel-shaft type reducer that has a drive gear on the motor shaft and a driven gear on the output shaft. One side and the other side in the axial direction are defined as a first side and a second side, respectively. The motor is located on the first side of the speed reducer in the axial direction. The driven gear includes a teeth portion having a gear end surface on the first side of the teeth portion. The motor includes a stator having a stator end surface on the second side of the stator. The gear end surface is located on the first side of the stator end surface in the axial direction.

Abstract: A motor assembly includes a motor and sealing member fixed to a frame. The motor includes a stator and a rotor. The stator includes a coil holding portion and a first portion with an annular shape and extending radially outward from the coil holding portion. The rotor includes a magnet and a magnet holding portion located in a first space. The first portion has a first surface in contact with the first space, and a second surface on a side opposite to the first surface. A through hole penetrates from the first surface to the second surface in the first portion. The sealing member is disposed on a side of the stator opposite to the rotor, and is fixed to the frame so a second space between the sealing member and the stator does not communicate with an external space other than the first space.

Abstract: A power supplying-side terminal (38) has a power supplying-side hanging portion (38H) extending toward a surface of the circuit board (31), a power supplying-side extending portion (38E) bent from the power supplying-side hanging portion (38H) and extending outwards along the surface of the circuit board (31) and a power supplying-side standing portion (38S) bent from the power supplying-side extending portion (38E) and extending in a direction away from circuit board (31). A power receiving-side terminal (39) has a power receiving-side extending portion (39E) extending outwards along the surface of the circuit board (31) and a power receiving-side standing portion (39S) bent from the power receiving-side extending portion (39E) and extending in the direction away from circuit board (31). The power supplying-side standing portion (38S) and the power receiving-side standing portion (39S) overlap each other, and connected to each other so as to have electrical continuity.

Abstract: Heat radiation base body 23 that is adjacent to electric motor unit EM and extends in direction of rotation shaft 50 of electric motor is provided close to rotation shaft 50 of electric motor. Board 24 of one electronic control unit of redundant system is fixed to heat radiation base body along direction in which heat radiation base body 23 extends with thermal conduction to heat radiation base body 23 allowed. Board 26 of the other electronic control unit of redundant system is fixed to heat radiation base body so as to face to board 24 of one electronic control unit of redundant system, with thermal conduction to heat radiation base body 23 allowed. Size reduction of electric drive device in radial direction can be achieved. Since heat radiates to housing of electric motor unit through heat radiation base body, heat from board can radiate efficiently to the outside.

Abstract: An alternating pole electromagnetic rotary motor is presented. The alternating pole electromagnetic rotary motor contains a ring gear housing, a rotor assembly, a plurality of electromagnets, and a processing unit. The rotor assembly contains a gear carrier, at least one planet gear, and at least one permanent magnet. The rotor assembly is concentrically and rotatably mounted within the ring gear housing. The at least one planet gear and the at least one permanent magnet is rotatably connected and radially distributed about the gear carrier. The plurality of electromagnets is operatively coupled with the at least one permanent magnet, where the plurality of electromagnetics is used to attract and repulse at least one permanent magnet in order to generate a torque on the rotor assembly.

Abstract: A control apparatus is provided for controlling drive of a rotating electric machine that has coils of two or more phases. The control apparatus includes a first inverter to be connected with first ends of the coils, a second inverter to be connected with second ends of the coils, and a controller. The first inverter has a plurality of first switching elements each corresponding to one of the coils. The second inverter has a plurality of second switching elements each corresponding to one of the coils. The controller includes a first operation circuit configured to generate a first control signal for control of the first inverter and a second operation circuit configured to generate a second control signal for control of the second inverter. Moreover, the control apparatus is configured so that switching timings are synchronized, based on synchronization information, between the first and second inverters.

Abstract: The mechanical drive system comprises a frame, at least one rotating electric machine comprising an end shaft rotor arranged on the frame, and at least one transfer case having at least one driving gear wheel. The driving gear wheel is integral with a rotor shaft of the rotating electric machine, the transfer case being arranged on the frame.

Abstract: The present disclosure is directed to nuclear thermionic avalanche cell (NTAC) systems and related methods of generating energy from captured high energy photons. Huge numbers of electrons in the intra-band of atom can be liberated through bound-to-free transition when coupled with high energy photons. If a power conversion process effectively utilizes these liberated electrons in an avalanche form through a power conversion circuit, the power output will be drastically increased. The power density of a system can be multiplied by the rate of high energy photon absorption. The present disclosure describes a system and methods built with multilayers of nuclear thermionic avalanche cells for the generation of energy. The multilayer structure of NTAC devices offers effective recoverable means to capture and harness the energy of gamma photons for useful purposes such as power systems for deep space exploration.

Abstract: A speed reducer comprises a transmission shaft, an eccentric wheel, a first wheel assembly, a rotating wheel and a second wheel assembly. The first wheel assembly comprises a first wheel disc and at least one first roller. The at least one first roller is disposed on the inner wall of first wheel disc. The rotating wheel comprises a main body comprising an outer ring structure and a concave structure. The outer ring structure comprises at least one first tooth. The at least one first tooth is in contact with the corresponding first roller. At least one second roller is disposed within the concave structure. The second wheel assembly comprises a second wheel disc and at least one second tooth. The at least one second tooth is disposed on an outer periphery of the second wheel assembly. The at least one second tooth is in contact with the corresponding second roller.

Abstract: The stator includes a stator core, a support electric wire formed by one or more conductive wires, and a drive electric wire formed by one or more conductive wires. The stator core includes an annular shaped back yoke and a plurality of teeth on an inner periphery of the back yoke. The support electric wire is disposed so as to pass through a plurality of slots respectively formed between the teeth, and forms a winding portion that generates an electromagnetic force for supporting the rotor in a non-contact manner by being energized. The drive electric wire is disposed so as to pass through the plurality of slots, and forms a winding portion that generates an electromagnetic force for rotating the rotor by being energized. A cross-sectional area per conductive wire of the support electric wire differs from a cross-sectional area per conductive wire of the drive electric wire.

Abstract: A modular stator-inverter assembly for an electric machine includes a stator and a traction power inverter module (“TPIM”). The stator includes a stator core having a center axis, an inner diameter (“ID”), an outer diameter (“OD”), and electrical conductors forming stator windings. Stator teeth extending radially toward the center axis from the ID collectively define stator slots occupied by the stator windings. Each adjacent pair of stator teeth defines a respective stator slot. The TPIM delivers a polyphase voltage to the stator windings to generate a predetermined number of stator poles, such that the stator has either two, three, or four of the stator slots per electric phase per stator pole. The stator defines a center cavity and is configured to receive a selected rotor from an inventory of preconfigured machine rotors. The inventory includes multiple synchronous reluctance machine rotors and an induction machine rotor.