Abstract: A stator includes: a plurality of stator blocks; a plurality of coils; and a supporter supporting the plurality of stator blocks. Each of the plurality of stator blocks includes: a yoke portion located at its outermost perimeter; and a teeth portion protruding from an inner peripheral surface of the yoke portion. The yoke portion has a width dimension along the circumferential direction, and the width dimension of the yoke portion is greater than a width dimension of the teeth portion along the circumferential direction. The supporter is closed in the circumferential direction. The supporter holds the plurality of stator blocks such that the plurality of stator blocks are housed in an interior of the supporter. The supporter has an inner peripheral surface in contact with at least an outer peripheral surface of the yoke portion of each of the plurality of stator blocks.

Abstract: A stator includes a plurality of stator blocks aligned in a circumferential direction and a plurality of coils each made of a winding wound around a corresponding one of the plurality of stator blocks. The stator includes a plurality of insulation members electrically insulating from the plurality of stator blocks from the plurality of coils for respective groups of the plurality of stator blocks and the plurality of coils. Each of the plurality of stator blocks includes a yoke portion located at its outermost perimeter and a teeth portion protruding from an inner peripheral surface of the yoke portion. Each of the plurality of insulation members includes a pair of insulating plates arranged to face each other across the teeth portion. Each of the pair of insulating plates has a width greater than a width of the teeth portion.

Abstract: A stator includes a plurality of stator blocks aligned in a circumferential direction and a plurality of coils each made of a winding wound around a corresponding one of the plurality of stator blocks. The stator includes a plurality of insulation members electrically insulating from the plurality of stator blocks from the plurality of coils for respective groups of the plurality of stator blocks and the plurality of coils. Each of the plurality of stator blocks includes a yoke portion located at its outermost perimeter, a teeth portion protruding from an inner peripheral surface of the yoke portion, and an insulating portion being electrically insulating and covering a surface of the teeth portion. Each of the plurality of insulation members includes a pair of insulating plates. Each of the pair of insulating plates has a width greater than a width of the teeth portion, and the pair of insulating plates are arranged to face each other across the teeth portion.

Abstract: An electric tool includes a motor. The motor includes a stator and a rotor. The rotor rotates with respect to the stator. At least one of the stator or the rotor includes a core (stator core or rotor core) that includes an oriented steel sheet.

Abstract: An Inverter-integrated rotating electrical machine includes: a rotating electrical machine including a rotor and a stator; a housing member forming a housing chamber that houses the rotating electrical machine; a cover member that covers an opening on one end side of the housing member in an axial direction and that includes a support portion rotatably supporting the rotor; a power switching element located between the cover member and the rotating electrical machine in the axial direction; and a smoothing capacitor located between the cover member and the rotating electrical machine in the axial direction. The cover member includes a cooler that cools the power switching element and the smoothing capacitor. The power switching element and the smoothing capacitor are connected to the cover member in a thermally conductive manner.

Abstract: A vehicle drive device includes: a rotary electric machine including a rotor and a stator; a housing member forming a housing chamber that houses the rotary electric machine; a cover member connected to one end side of the housing member in an axial direction, facing the rotary electric machine in the axial direction, and including a bearing support portion that rotatably supports the rotor; a power switching element electrically connected to a coil of the stator; and a smoothing capacitor electrically connected to the power switching element. The smoothing capacitor is disposed on a radially outer side of the power switching element when viewed in the axial direction.

Abstract: Disclosed is a vehicle drive device including: a rotary electric machine including a rotor and a stator; a housing member forming a housing chamber that houses the rotary electric machine; a cover member connected to one end side of the housing member in an axial direction, facing the rotary electric machine in the axial direction, and including a support portion that rotatably supports the rotor; a power switching element electrically connected to a coil of the stator; and a smoothing capacitor electrically connected to the power switching element. The power switching element and the smoothing capacitor are fixed to the cover member and disposed between the cover member and the rotary electric machine in the axial direction. The smoothing capacitor overlaps the power switching element when viewed in a radial direction.

Abstract: A switching element module includes a first switching element and a second switching element connected between a positive electrode and a negative electrode of a direct current power supply, a smoothing capacitor connected between the positive electrode and the negative electrode of the direct current power supply, and a cooling block thermally connected to a cooler. The first switching element is fixed to one side face of the cooling block. The second switching element is fixed to the other side face of the cooling block. The smoothing capacitor is fixed to a positive terminal of the first switching element and a negative terminal of the second switching element, and is provided to face a first connection surface of the cooling block that connects the one side face and the other side face.