Abstract: A rotating electric motor includes a stator core, a rotational shaft capable of rotation, a field yoke allowing a flow of magnetic flux in an axial direction, first and second rotor cores fixedly installed on the rotational shaft, a first magnet fixedly installed between the first rotor core and the second rotor core, a first rotor teeth formed at the first rotor core, a second magnet provided alongside of the first rotor teeth in the circumferential direction of the first rotor core, a second rotor teeth formed at the outer surface of the second rotor core, protruding outwardly in the radial direction, a third magnet provided alongside of the second rotor core in the axial direction, and windings that can control the density of magnetic flux between at least one of the first rotor core and second rotor core and the stator core.

Abstract: A stator core includes: an assembled stator core formed of annularly arranged, divided stator cores; a fixing member disposed at an outer circumferential surface of the assembled stator core and capable of pressing the divided stator cores inward in a radial direction of the assembled stator core to annularly arrange and thus fix the divided stator cores; and a weak portion provided between the divided stator cores and the fixing member and deformable by a force exerted from the fixing member to press the divided stator cores.

Abstract: A stator core is formed by arranging divided cores (20) in a circumference direction in cylindrical shape. On an upper end surface (60) of a core back (50) of the divided core, holes (62, 64) are made. Then, on the upper end surface, a reinforcing ring (40) having through holes (66, 68) is arranged, and is connected with rivets (70, 72). Thus, stress is transmitted not only through a side surface (58) but also through the reinforcing ring (40), between the adjacent divided cores. Thus, strength of the stator using a powder magnetic core is ensured and a space is saved.

Abstract: A driving gear of a vehicle comprising a motor generator (MG2), a power control unit (21) for controlling the motor generator (MG2), and a case for containing the motor generator (MG2) and the power control unit (21). The power control unit (21) comprises a first inverter for driving the motor generator (MG2), and a voltage converter for applying power supply voltage to the first inverter after stepping it up. The voltage converter includes a reactor (L1). Heat of the reactor (L1) is dissipated using lubricant touching the reactor (L1) and the case as heat transfer agent. A circulation path of lubricant is formed in the case and the reactor is arranged on the circulation path.

Abstract: A trans axle includes motor generators with central rotation axes of respective rotors arranged coaxially, a power split device arranged coaxially with the central rotation axis of a crank shaft and between motor generators, and a power control unit controlling the motor generators. The power control unit is arranged such that a reactor is positioned at least on one side and a smoothing capacitor is positioned on the other side of the central rotation axis of motor generator. The motor generators, the power split device and the power control unit are housed and integrated in a metal case, and fixed on a body of a vehicle (1000) by means of an engine mount.

Abstract: A battery is arranged outside a compartment. A service plug is arranged in the compartment. The service plug is a shutoff device that can shut off an output path of the battery by a manual operation. When a vehicle is hard hit at the front and a circuit of PCU is damaged, an excessive current may flow to the PCU, possibly generating heat or smoke from the PCU. When the vehicle goes wrong, a person on board the vehicle may pull out the service plug, whereby the power supply path from battery to PCU can be shut off.

Abstract: A cooling structure for a stator includes: a stator core; a stator coil that is wound on the stator core and includes a coil end formed on an end surface of the stator core in an axial direction of the stator core; a ring member provided on an outer periphery of the stator core; a case that houses the ring member and the stator core on which the stator coil is wound. In the cooling structure, a cooling medium is supplied between an outer peripheral surface of the ring member and an inner peripheral surface of the case, and the ring member includes at least one opening through which the cooling medium is supplied to the coil end from radially outside of the coil end.

Abstract: A rotating electric machine is provided that includes a rotating portion including a rotating shaft, a housing enclosing at least a part of the rotating shaft, and a stator coil accommodated in the housing. A static coolant supply portion supplies coolant to the stator coil from the outside of the stator coil in a radial direction of the rotating shaft. A rotating coolant supply portion supplies coolant to the stator coil from the inside of the stator coil in the radial direction of the rotating shaft. A guide portion is provided in the housing and extends toward the inner surface of the stator coil in the radial direction of the rotating shaft. The guide portion has a through hole through which coolant flows.

Abstract: A stator core is composed of two compacts of compressed powder magnetic cores joined in the axial direction. A yoke portion includes projections projecting axially outward from end surfaces in the axial direction of a tooth. The length in the axial direction of the tooth is gradually reduced radially toward the outside of the stator core, and the length in the circumferential direction of the tooth is gradually increased radially toward the outside of the stator core. A molding is formed by pressing magnetic powder placed in a die by a single punch placed on one side in the axial direction and two punches placed parallel to each other on the other side in the axial direction. The stator core for a rotary electric machine is thus produced.

Abstract: A stator core installed around the rotating shaft of a motor, comprising a plurality of split cores split in the circumferential direction. The split core is formed of a compressed powder magnetic core. To connect the split core to the adjacent split core, hole parts of rectangular parallelepiped shape are formed in the upper end surfaces thereof. A connection between the split cores is performed by press-fitting a clamp into the hole parts. As a result, the split stators can be compactly integrated with each other.

Abstract: Disclosed is a highly heat-resistant core which has a dust core as a base body. A dust core obtained by press-molding magnetic powder particles particles each of which are covered with an insulating film is used as the base body. An inorganic heat-resistant insulating film is formed on at least a part of a surface of the dust core which faces a winding wire.

Abstract: A drive device of a vehicle includes a motor generator, a lubricant circulating mechanism lubricating and cooling the motor generator, a power control unit controlling the motor generator, arranged on a circulation path of a lubricating oil and being in contact with the lubricating oil for transferring and receiving a heat to and from the lubricating oil, and a casing accommodating the motor generator, the lubricating mechanism and the power control mechanism, and provided with the circulation path. Preferably, the power control unit includes a power control element and a board (120) having a first main surface on which the power control element is mounted. The board (120) is provided on its second main surface side with a radiator fin (390, 392 and 394) for contact with the lubricating oil in the circulation path.

Abstract: A core comprises a plurality of core split members having yoke portions and tooth portions and arranged in such a circumferential shape that the yoke portions contact with each other while the tooth portions being directed inward. The core further comprises a ring contacting with the yoke portions, and stoppers mounted on the outer face sides of the yoke portions for fixing the ring on the yoke portions. The yoke portions and the ring are formed in corrugated shape to mesh with each other, and the stoppers are formed with projections that engage with the inner side of the ring. This structure provides both the rotating electrical machine core having the core split members arranged in the circumferential shape and fastened to each other while preventing occurrence of a stress and a positional displacement between the core split members, and a rotating electrical machine.

Abstract: An electrode stack includes a cathode active material layer and an anode active material layer stacked together, and an electrolyte layer arranged between the cathode active material layer and the anode active material layer. A through hole extending in the stacking direction of the cathode active material layer and anode active material layer is formed in the cathode active material layer, anode active material layer and the electrolyte layer. The electrode stack further includes a bolt inserted to the hole for integrally holding the cathode active material layer, anode active material layer and the electrolyte layer. By such a structure, an electrode stack and a bipolar secondary battery that can effectively prevent displacement of interface between each of the cathode, anode and the electrolyte can be provided.

Abstract: A rotary electric machine capable of effectively utilizing both end faces of a rotor in the rotating axis direction by suppressing magnetic saturation comprises a stator having axial parts (31) and (32) and a radial part. The axial part (31) comprises cores (311) to (314) and coils (321) to (324), and the axial part (32) comprises cores (312) to (315) and coils (322) to (325). The radial part comprises cores (332) to (337) and coils (352) to (357). The width of each of the cores (311) to (315) in the circumferential direction is twice the width of each of the cores (332) to (337) in the circumferential direction. The number of windings of each of the coils (321) to (325) is equal to the number of windings of each of the coils (352) to (357).

Abstract: A rotary electric machine capable of effectively utilizing both end faces of a rotor in the rotating axis direction comprises a stator and a rotor. The stator comprises a radial part disposed in the rotating axis direction and axial parts disposed in the radial direction. The radial part and the axial parts comprise teeth and coils. The rotor comprises a rotor shaft, a rotor core, and a magnet. The rotor core comprises a radial part and axial parts. The magnet comprises a radial part and axial parts. The radial part and the axial parts of the magnet are formed to face the radial part and the axial parts and of the stator.

Abstract: A drive device of a hybrid vehicle includes a motor generator and a motor generator arranged at the back of the motor generator, each rotor having a rotational center axis arranged on the same axis, a power split mechanism arranged on the same axis as a rotational center axis of a crankshaft and between the crankshaft and the motor generator, and a power control unit performing control of the motor generator. The power control unit includes a reactor arranged in a gap portion formed on one side with respect to the rotational center axis of the motor generator and between a lower side surface of the power element substrate, an outer circumferential side surface of the motor generator and an inner side surface of a case, and a capacitor arranged on the other side with respect to the rotational center axis of the motor generator.

Abstract: A die includes a cavity in which a powder magnetic core material is introduced and a recessed curved surface curved inward of the die formed at the bottom surface of the cavity. The powder magnetic core material in the cavity is pressed by a pressing surface of a punch to the side and bottom surfaces of the cavity to form a split tooth body. As a result, a projected curved surface having a shape following the recessed curved surface is formed on the outer peripheral surface of the split tooth body. Then, two split tooth bodies are butted and joined together at the surfaces to which a pressing force by the punch is applied, and thereby a tooth is assembled.

Abstract: A method for producing a dust core compact includes the steps of forming a compact component by pressure-forming a soft magnetic powder having an average particle diameter Da under a pressure Pa, and forming a compact by pressure-forming a soft magnetic powder having an average particle diameter Db and the compact component under a pressure Pb. Average particle diameters Da and Db of the soft magnetic powders satisfy relationship Da/Db?2, and pressures Pa and Pb applied during the pressure-forming satisfy relationship Pa/Pb?1/2. With this structure, a method for producing a dust core compact exhibiting a high strength and capable of being fabricated even when it has a complex shape, and the dust core compact can be provided.

Abstract: A rotating electric motor includes a rotary shaft capable of rotation, a stator core formed in a cylindrical configuration, a rotor core fixed to the rotary shaft, a magnet set at the rotor core such that a pair of magnetic poles of different magnetism are aligned in the radial direction of the rotor core, a field yoke provided at the perimeter of the stator core, and a winding that can control the magnetic flux density across the rotor core and the stator core by forming a magnetic circuit across the field yoke and the rotor core.