Abstract: An in-wheel motor with improved driving force has a simplified cooling structure for the motor and a braking device. The in-wheel motor has a motor that transmits motive power to a wheel, at least a portion of the motor being disposed inside the wheel; a first cooling part and a second cooling part that cool a stator of the motor; and a braking device that applies braking to the wheel. The braking device 25 is formed from a brake disc that rotates with the wheel and a brake caliper that induces braking by imparting friction to the brake disc. The brake caliper operates in the axial direction of the motor to induce braking in the brake disc. A portion of an axial-direction end of the brake caliper is in contact with the stator. The first cooling part and the second cooling part cool the braking device through the stator.

Abstract: The present invention addresses the problem of providing a winding for an electromagnetic component, a stator for a rotary electric machine, a rotary electric machine, and a wheel, which can simplify an assembly step while improving joint quality of a coil end. This winding for electromagnetic components comprises a first conductor (3) and a second conductor (4) electrically connected to the first conductor (3). The first conductor (3) and the second conductor (4) are fixed inside an electromagnetic component. At least one among the first conductor (3) and the second conductor (4) has a bent section (10). The first conductor (3) is pressed against and makes close contact with the second conductor (4) by a restoring force (12) due to residual stress of the bent section (10).

Abstract: This drive device (1) comprises: a motor (2) including a cylindrical stator (23), a cylindrical rotor (24) facing the stator (23) in the radial direction, and a stator housing (25) in which the stator (23) and the rotor (24) are housed; a bevel gear (4) that is arranged on the axis of rotation of the motor (2) and to which the driving force of the motor (2) is transmitted; and a distribution mechanism (6) that transmits the driving force of the motor (2) via the bevel gear (4). At least part of the distribution mechanism (6) is arranged at a position overlapping with the outer circumferential lower surface of the stator housing (25).

Abstract: The rotating electric machine includes a stator having a stator core around which a plurality of coils are wound; a rotor supported to be rotatable relative to the stator with a predetermined gap therebetween; a rotor case that holds the rotor; and a first bearing and a second bearing that rotatably support the rotor case. The rotating electric machine includes: a first flow path formation body that forms a first flow path through which a refrigerant flows to a coil end part protruding from the stator core; a first case part which forms an accommodation space of the first bearing, is connected to the first flow path of the first flow path formation body, and fills the accommodation space with the refrigerant.

Abstract: This invention provides an in-wheel motor capable of increasing steering operability and ride comfort of a vehicle. A stator 21 of an in-wheel motor 20 comprises a stator housing 21a and a stator housing cover 21b. The stator housing 21a is formed of a tubular-shaped housing annular portion 21a1, a housing flat-plate portion 21a2, a fold-back portion 21a3, and a flange portion 21a4. In the stator housing 21a, a housing recessed portion 211 is formed of the housing flat-plate portion 21a2 and the fold-back portion 21a3. The housing recessed portion 211 is provided with a hub bearing mounting portion 216 on which a hub bearing 26 is mounted. The stator housing cover 21b is provided with an upper arm attachment portion 217 and a lower arm attachment portion 218 for attaching an upper arm 31 and a lower arm 32 of a suspension device 30.

Abstract: A rotating electrical machine includes segmented coils respectively disposed in layers aligned in a row in a radial direction inside a slot of a stator core. The segmented coils include first regions having a straight line section disposed inside the slot and a protrusion protruding to the outside of the slot from one end of the straight line section, and second regions extending toward one side in the circumferential direction from the other end of the respective straight line section, such that the position in the radial direction changes. The tip end section of the second region of a first segmented coil disposed in a prescribed layer within a prescribed slot is disposed and connected to be adjacent, in the radial direction, to the tip end section of the first region of a second segmented coil disposed in the prescribed layer within a slot adjacent to the prescribed slot.

Abstract: The purpose of the present invention is to provide: a stator for a dynamo-electric machine, with which axial size can be reduced; and, an electrically powered wheel provided with the stator for the dynamo-electric machine. A stator 10 for a dynamo-electric machine is provided with a stator core 100, a plurality of coils 201A-201D, and jumper wires 202A-202C. The stator core 100 has first teeth 101 around which a coil is wound and second teeth 102 around which a coil is not wound. The first teeth 101 and the second teeth 102 are disposed alternatingly in the circumferential direction. The jumper wire 202 extends circumferentially and radially with a bent section to absorb variations in the spacing between one coil and another, and is disposed at a position overlapping the second teeth 102 when viewed from the axial direction of the dynamo-electric machine.

Abstract: A stator of a rotary electrical machine includes a stator core, a coil, and at least one of a connection wire and a jumper wire. The coil has a first coil end which is located on one end side of the stator core in the axial direction and a second coil end which is located on the other end side of the stator core in the axial direction. A coolant flow path for cooling the rotor and the stator has: a coolant inflow port; a first annular flow path which faces an air gap in the axial direction; a relay flow path which is provided on the second coil end side and which faces the air gap in the axial direction; and a second annular flow path which is in communication with the relay flow path and which is provided as shifted radially outward with respect to the air gap.

Abstract: A rotating electric machine having high efficiency and high reliability without causing an increase in size and cost is realized. Each of the rectangular wire segment coils has a first region portion and a second region portion connected to the first region portion and formed in the circumferential direction. Adjacent pairs of wire coils include a conductive portion to which the first region portion of one of the rectangular wire segment coils and the second region portion of the other of the rectangular wire segment coils are connected. Each of the plurality of layers includes a first layer in which the first region portion appears at an axial end portion and a second layer in which the second region portion appears at an axial end portion when the coil end is viewed in an axial direction of the rotating electric machine.

Abstract: The purpose of the present invention is to provide a rotary electric machine that has a simplified structure for cooling and that inhibits the increase in production costs. In the rotary electric machine according to the present invention, the axis of rotation of a rotor shaft 26 is positioned at a prescribed angle with respect to the horizontal axis. Provided are an upper-side flow passage 252 formed on the upper side of a stator core 23a and through which the liquid refrigerant flows, a lower-side flow passage 255 formed on the lower side of the stator core 23a, and a slot flow passage 257 that connects the upper-side flow passage 252 and the lower-side flow passage 255. The upper-side flow passage 252 is formed by a housing 25, an upper end surface of the stator core 23a, and an upper-side flow passage forming body 251 connecting the housing 25 to the upper end surface of the stator core 23a on a gap G side. The slot flow passage 257 is at least partially open at the end face on the gap G side.

Abstract: This invention provides an in-wheel motor capable of increasing steering operability and ride comfort of a vehicle. A stator 21 of an in-wheel motor 20 comprises a stator housing 21a and a stator housing cover 21b. The stator housing 21a is formed of a tubular-shaped housing annular portion 21a1, a housing flat-plate portion 21a2, a fold-back portion 21a3, and a flange portion 21a4. In the stator housing 21a, a housing recessed portion 211 is formed of the housing flat-plate portion 21a2 and the fold-back portion 21a3. The housing recessed portion 211 is provided with a hub bearing mounting portion 216 on which a hub bearing 26 is mounted. The stator housing cover 21b is provided with an upper arm attachment portion 217 and a lower arm attachment portion 218 for attaching an upper arm 31 and a lower arm 32 of a suspension device 30.

Abstract: A rotary electrical machine comprises a cylindrical stator that generates a magnetic field, a rotor that generates torque through the magnetic field, and a housing that accommodates the stator. The housing comprises a housing body covering an outer circumferential part of the stator, and a housing lid part attached to one end side of the housing body. The stator comprises a stator core having a plurality of teeth, and a stator coil mounted on the stator core, and the stator coil has a plurality of windings wound onto the plurality of teeth, and a crossover wire connecting at least two of the plurality of windings. The crossover wire comprises an insertion mechanism that is provided to the housing lid part and electrically connects end parts of the windings and an end part of the crossover wire through insertion contact.

Abstract: High reliability and long life are achieved by being sliding-less. The switch according to the present invention includes: first terminal and a second terminal that are adjacently attached to a stator; a movable shaft movable in a first direction and a second direction, a plurality of movers attached to the movable shaft; and a movable segment that is connected to two of the plurality of movers and biases the two movers in a direction in which they are away from each other.

Abstract: An in-wheel motor with improved driving force has a simplified cooling structure for the motor and a braking device. The in-wheel motor has a motor that transmits motive power to a wheel, at least a portion of the motor being disposed inside the wheel; a first cooling part and a second cooling part that cool a stator of the motor; and a braking device that applies braking to the wheel. The braking device 25 is formed from a brake disc that rotates with the wheel and a brake caliper that induces braking by imparting friction to the brake disc. The brake caliper operates in the axial direction of the motor to induce braking in the brake disc. A portion of an axial-direction end of the brake caliper is in contact with the stator. The first cooling part and the second cooling part cool the braking device through the stator.

Abstract: The purpose of the present invention is to provide: a stator for a dynamo-electric machine, with which axial size can be reduced; and, an electrically powered wheel provided with the stator for the dynamo-electric machine. A stator 10 for a dynamo-electric machine is provided with a stator core 100, a plurality of coils 201A-201D, and jumper wires 202A-202C. The stator core 100 has first teeth 101 around which a coil is wound and second teeth 102 around which a coil is not wound. The first teeth 101 and the second teeth 102 are disposed alternatingly in the circumferential direction. The jumper wire 202 extends circumferentially and radially with a bent section to absorb variations in the spacing between one coil and another, and is disposed at a position overlapping the second teeth 102 when viewed from the axial direction of the dynamo-electric machine.

Abstract: This rotating electric machine comprises: a stator having a stator core around which a plurality of coils are wound; a rotor supported to be rotatable relative to the stator with a predetermined gap therebetween; a rotor case that holds the rotor; and a first bearing and a second bearing that rotatably support the rotor case.

Abstract: A stator of a rotary electrical machine includes a stator core, a coil, and at least one of a connection wire and a jumper wire. The coil has a first coil end which is located on one end side of the stator core in the axial direction and a second coil end which is located on the other end side of the stator core in the axial direction. A coolant flow path for cooling the rotor and the stator has: a coolant inflow port; a first annular flow path which faces an air gap in the axial direction; a relay flow path which is provided on the second coil end side and which faces the air gap in the axial direction; and a second annular flow path which is in communication with the relay flow path and which is provided as shifted radially outward with respect to the air gap.

Abstract: A rotating electrical machine according to the present invention has a plurality of segmented coils respectively disposed in a plurality of layers aligned in a row in a radial direction inside a slot of a stator core. The segmented coils comprise: first regions (111a, 121a) that each have a straight line section disposed inside the slot and a protrusion that protrudes to the outside of the slot from one end of the straight line section; and second regions (112a, 122a) that are formed so as to extend toward one side in the circumferential direction from the other end of the respective straight line section, and such that the position in the radial direction changes.

Abstract: High reliability and long life are achieved by being sliding-less. The switch according to the present invention includes: first terminal and a second terminal that are adjacently attached to a stator; a movable shaft movable in a first direction and a second direction, a plurality of movers attached to the movable shaft; and a movable segment that is connected to two of the plurality of movers and biases the two movers in a direction in which they are away from each other.