Abstract: A rotating electric machine includes: a rotary shaft member; a rotor including an annular rotor core having magnet housing holes; a stator including an annular stator core and a stator coil; a field yoke; and a field coil provided in the field yoke. Further, a bridge portion is provided between two magnet housing holes, an end surface in an axial direction at one end in a radial direction of the field yoke and an end surface in the axial direction of the bridge portion face each other in the axial direction, and an end surface in the axial direction at another end in the radial direction of the field yoke, and an end surface in the axial direction of the rotor core or an end surface in the axial direction of the stator core face each other in the axial direction.

Abstract: An electric motor includes: a rotary shaft member rotating about an axis; a rotor including a rotor core and a magnet, the rotor core being provided on the rotary shaft member, the magnet being provided on the rotor core; and a stator including a stator core and a stator coil, the stator core having a plurality of slots formed in a circumferential direction, the stator core being disposed at an interval in a radial direction that is a direction orthogonal to an axial direction of the rotary shaft member with respect to the rotor core, the stator coil being inserted into the plurality of slots and wound around the stator core. Further, the stator coil includes a first conductor and a second conductor having a conductivity greater than a conductivity of the first conductor, and the second conductor is disposed in the slots.

Abstract: A rotor for a rotating electric machine includes: a rotor core having magnet holes; magnets inserted in the magnet holes of the rotor core. Each of the magnets includes two first surfaces respectively facing outward and inward of the rotor radial direction, and two second surfaces respectively facing one side and the other side of the rotor circumferential direction. Both ends in the rotor axial direction of at least one first surface of the two first surfaces are covered with electric insulating films, and a lateral surface region between both ends of the one first surface that are covered with the electric insulating films, and the two second surfaces are covered with no electric insulating films.

Abstract: A rotary electric machine includes an annular stator, an inner rotor, an outer rotor and a toroidal coil. The annular stator includes inner teeth protruding radially inward and outer teeth protruding radially outward. The inner rotor faces a radially inner side of the annular stator. The outer rotor faces a radially outer side of the annular stator. The toroidal coils are arranged in each inner slot between any adjacent two of the inner teeth and a corresponding one outer slot between adjacent two of the outer teeth. The total number of the plurality of outer slots is larger than the total number of the plurality of inner slots. The number of the coils arranged in all the outer slots is larger than or equal to the number of the coils arranged in all the inner slots.

Abstract: The rotor of the rotating electric machine includes the rotor shaft and the rotor core. The rotor shaft has the shaft refrigerant passage and the refrigerant supplying port on the outer peripheral surface of the rotor shaft, the shaft refrigerant passage extending in an axial direction, the refrigerant supplying port communicating with the shaft refrigerant passage. The rotor core has the rotor core refrigerant passage and the refrigerant receiving port on the inner peripheral surface of the rotor core, the rotor core refrigerant passage extending in the axial direction, the refrigerant receiving port communicating with the rotor core refrigerant passage and facing the refrigerant supplying port of the rotor shaft. A clearance groove part is provided at a portion that is on the inner peripheral surface of the rotor core and that faces the refrigerant supplying port of the rotor shaft, the clearance groove part extending in the axial direction.

Abstract: The rotor of the rotating electric machine includes the rotor shaft and the rotor core. The rotor shaft has the shaft refrigerant passage and the refrigerant supplying port on the outer peripheral surface of the rotor shaft, the shaft refrigerant passage extending in an axial direction, the refrigerant supplying port communicating with the shaft refrigerant passage. The rotor core has the rotor core refrigerant passage and the refrigerant receiving port on the inner peripheral surface of the rotor core, the rotor core refrigerant passage extending in the axial direction, the refrigerant receiving port communicating with the rotor core refrigerant passage and facing the refrigerant supplying port of the rotor shaft. A clearance groove part is provided at a portion that is on the inner peripheral surface of the rotor core and that faces the refrigerant supplying port of the rotor shaft, the clearance groove part extending in the axial direction.

Abstract: A stator is for a rotary electric machine. The stator includes a stator core includes a stator yoke having an annular shape, teeth being projected to an inner diameter side from the stator yoke, coils wound around the teeth, and a reinforcing member. The reinforcing member has a ring shape, and fixed to an axial end surface at a tip of each of the teeth. The tip is a portion on the inner diameter side of an arrangement range of the coil. The reinforcing member is a non-magnetic body.

Abstract: A rotor includes a rotor core that is formed by stacking a plurality of steel plates each of which has an opening; a magnet that is inserted in a magnet hole formed by disposing the openings such that the openings overlap each other; and a magnetic plate that is disposed between an inner wall defining the magnet hole and the magnet so as to prevent contact between the inner wall defining the magnet hole and the magnet. At least a contact portion of the magnetic plate is subjected to an insulating process, the contact portion of the magnetic plate contacting the magnet.

Abstract: A rotor of a rotating electric machine includes a rotor core, and a plurality of permanent magnets arranged in a two-layer structure having a first layer and a second layer, in the rotor core. Among the permanent magnets, first and second outermost permanent magnets located closest to each of opposite q-axes of each magnetic pole are located relative to each other, such that a radial position of an end portion on a q-axis side and a radially inner side in the first outermost permanent magnet that belongs to the first layer is spaced by a predetermined radial spacing from and is on a radially outer side of a radial position of an end portion on the q-axis side and a radially outer side in the second outermost permanent magnet that belongs to the second layer.

Abstract: An electric motor system includes a first electric motor including a first rotor, a first stator, and a first coil provided in the first stator, a second electric motor including a second rotor, a second stator and a second coil provided in the second stator and spaced apart from the first electric motor, and a heat conduction member disposed so as to extend between the first coil of the first electric motor and the second coil of the second electric motor.

Abstract: An insulator for insulating a coil that is wound around a tooth of a stator core from the stator core includes: an axial wall that opposes an axial end surface of the tooth in a state of being assembled to the tooth; and a circumferential wall that is integrally provided with the axial wall and opposes a circumferential-side surface of the tooth. The circumferential wall that is located between the tooth and the coil is constructed of an insulating sheet that is thinner than the axial wall and has foamability.

Abstract: An electric motor includes: a rotary shaft member rotating about an axis; a rotor including a rotor core and a magnet, the rotor core being provided on the rotary shaft member, the magnet being provided on the rotor core; and a stator including a stator core and a stator coil, the stator core having a plurality of slots formed in a circumferential direction, the stator core being disposed at an interval in a radial direction that is a direction orthogonal to an axial direction of the rotary shaft member with respect to the rotor core, the stator coil being inserted into the plurality of slots and wound around the stator core. Further, the stator coil includes a first conductor and a second conductor having a conductivity greater than a conductivity of the first conductor, and the second conductor is disposed in the slots.

Abstract: An electric motor includes: a rotary shaft member rotating about an axis; a rotor including a rotor core, which has an annular shape and is provided on the rotary shaft member, and a magnet provided on the rotor core; a stator including a stator core, which has an annular shape and is disposed at an interval from the rotor core in a radial direction that is a direction orthogonal to an axial direction of the rotary shaft member, and a stator coil wound around the stator core; a field yoke, which has an annular shape, includes the rotor and the staorm, and has a fixed relative positional relationship with the stator core; and a case member, which has a side wall extending in the axial direction to face an outer peripheral surface of the field yoke, the field yoke being fixed to the case member.

Abstract: A method for manufacturing a stator of a rotary electric machine includes: assembling an insulator and a stator coil to a tooth; and after assembling, pouring a liquid adhesive into an opening of the insulator from an outer side of the stator coil so as to fix the stator coil to a stator core.

Abstract: A rotary electric machine includes a stator and a rotor. The rotor includes a rotor core and a plurality of permanent magnets. The permanent magnets are disposed to be divided into two layers, the two layers being a layer on the outer peripheral side and a layer on the inner peripheral side of the rotor core, and the permanent magnets are disposed line-symmetrically with respect to a magnetic pole center of the rotor core and in a V-shape or a U-shape in each of the two layers. An angle that each of the permanent magnets disposed on the outer peripheral side makes with the magnetic pole center of the V-shape or the U-shape is larger than an angle that each of the permanent magnets disposed on the inner peripheral side makes with the magnetic pole center of the V-shape or the U-shape.

Abstract: A stator for a electric motor, the stator including: a stator core including a yoke having an annular shape, and a plurality of teeth protruding from an inner circumferential surface of the yoke in a stator radial direction; a stator coil wound around the teeth, the stator coil being configured to generate a rotating magnetic field as a current is applied thereto; and a cancel coil extending in a stator axial direction at positions on the inner circumferential side and the outer circumferential side relative to the yoke, the cancel coil being wound around the stator core so as to extend in the stator radial direction and traverse the yoke at positions outside the stator core in the stator axial direction, and constituting one or more closed circuits.

Abstract: A stator includes a stator core and an insulator. The insulator includes a main body and a wall. An adhesive is attached to a portion of a triangular gap between the wall of the insulator and a yoke of the stator core. The adhesive is expandable, and adheres and fixes the insulator to the stator core by expanding to fill in the gap by being heated. Also, a stator manufacturing method includes attaching an adhesive to the wall of the insulator or an inside wall of the yoke, installing the insulator on a tooth, and heating the stator core and the insulator.

Abstract: A stator includes a stator core has slots that are each provided between stator teeth disposed on the stator core. The insulation paper is disposed in the slot between the coil and the stator core defining the slot has a recess at a position adjacent to connection parts between side walls and a bottom wall of the insulation paper. The recess extends so as to be apart from the connection parts in one of a radial direction and the circumferential direction. The insulation members include a projection that is configured to be disposed inside the recess.

Abstract: A rotary electric machine includes: a stator including a stator core and a stator coil wound around the stator core; and an annular outer rotor including an outer core disposed around an outer periphery of the stator and a plurality of outer magnets arranged at intervals in a circumferential direction, in which the stator core has an annular yoke and a plurality of outer teeth protruding radially outward from an outer periphery of the yoke, the outer magnets are magnetized in the circumferential direction such that magnetization directions of the outer magnets adjacent to each other in the circumferential direction are opposite to each other in the circumferential direction, and a circumferential distance of a gap between the outer magnets adjacent to each other is 1.5 times or more a disposition pitch in the circumferential direction of the outer teeth.

Abstract: The rotor of the rotating electric machine includes the rotor shaft and the rotor core. The rotor shaft has the shaft refrigerant passage and the refrigerant supplying port on the outer peripheral surface of the rotor shaft, the shaft refrigerant passage extending in an axial direction, the refrigerant supplying port communicating with the shaft refrigerant passage. The rotor core has the rotor core refrigerant passage and the refrigerant receiving port on the inner peripheral surface of the rotor core, the rotor core refrigerant passage extending in the axial direction, the refrigerant receiving port communicating with the rotor core refrigerant passage and facing the refrigerant supplying port of the rotor shaft. A clearance groove part is provided at a portion that is on the inner peripheral surface of the rotor core and that faces the refrigerant supplying port of the rotor shaft, the clearance groove part extending in the axial direction.