Abstract: A rotating electric machine includes a stator, a rotor, and a stator core. The stator core includes a plurality of teeth. Each of the teeth includes at least one of a through hole axially piercing the tooth and a recess extending from one end of the tooth to another end of the tooth in an axial direction.

Abstract: A rotating electric machine includes a stator, a rotor, and a stator core. The stator core includes a plurality of teeth. Each of the teeth includes at least one of a through hole axially piercing the tooth and a recess extending from one end of the tooth to another end of the tooth in an axial direction.

Abstract: A bobbin for electrically insulating the stator core from a coil wire to be wound around the bobbin includes: a coil winding portion around which the coil wire is to be wound; and a terminal fixing portion to which a winding starting end portion and a winding finishing end portion of the coil wire are to be fixed. The terminal fixing portion includes a first groove configured to guide a winding starting section extending from the winding starting end portion of the coil wire to a winding starting position of the coil winding portion and a second groove configured to guide a winding finishing section extending from a winding finishing position of the coil winding portion to the winding finishing end portion of the coil wire to intersect the winding starting section when seen in an axial direction.

Abstract: A rotating electric machine includes a stator, a rotor, and a stator core. The stator core includes a plurality of teeth. Each of the teeth includes at least one of a through hole axially piercing the tooth and a recess extending from one end of the tooth to another end of the tooth in an axial direction.

Abstract: A bobbin is adapted to be mounted to a projection of a stator core of a rotary electric machine and wound with a coil wire. The bobbin includes a back stress generating portion configured to generate a stress acting in a direction opposite to a stress generated when the coil wire is wound around the bobbin.

Abstract: A rotating electrical machine comprises a stator and a rotor. The rotor includes a rotor iron core in which a permanent magnet is disposed. The rotor iron core comprises a connection part, a plurality of magnetic pole part, a first gap, and a second gap for injection of the adhesive. The connection part is configured to surround a rotational axis. The plurality of magnetic pole parts are provided in an outer portion than the connection part in a radial direction. The first gap is configured to penetrate along an axial direction between the magnetic pole parts in an outer portion than the connection part in the radial direction and in which the permanent magnet is fixed with adhesive. At least one of the second gaps is provided for each of the first gaps in communication with the first gap.

Abstract: The rotating electric machine includes a stator and a rotor. The rotating electric machine includes a rotor iron core including a plurality of magnetic pole portions in a circumferential direction, a plurality of permanent magnets provided on the rotor iron core, and a stator iron core including a plurality of teeth around each of which coil winding is wound. The stator iron core is configured in such a manner that the tooth facing the magnetic pole portion in the radial direction is substantially magnetically saturated by the permanent magnet in a non-energized state of the stator winding.

Abstract: A bobbin for electrically insulating the stator core from a coil wire to be wound around the bobbin includes: a coil winding portion around which the coil wire is to be wound; and a terminal fixing portion to which a winding starting end portion and a winding finishing end portion of the coil wire are to be fixed. The terminal fixing portion includes a first groove configured to guide a winding starting section extending from the winding starting end portion of the coil wire to a winding starting position of the coil winding portion and a second groove configured to guide a winding finishing section extending from a winding finishing position of the coil winding portion to the winding finishing end portion of the coil wire to intersect the winding starting section when seen in an axial direction.

Abstract: A rotating electrical machine comprises a stator and a rotor. The rotor includes a rotor iron core in which a permanent magnet is disposed. The rotor iron core comprises a connection part, a plurality of magnetic pole part, a first gap, and a second gap for injection of the adhesive. The connection part is configured to surround a rotational axis. The plurality of magnetic pole parts are provided in an outer portion than the connection part in a radial direction. The first gap is configured to penetrate along an axial direction between the magnetic pole parts in an outer portion than the connection part in the radial direction and in which the permanent magnet is fixed with adhesive. At least one of the second gaps is provided for each of the first gaps in communication with the first gap.

Abstract: A bobbin is adapted to be mounted to a projection of a stator core of a rotary electric machine and wound with a coil wire. The bobbin includes a back stress generating portion configured to generate a stress acting in a direction opposite to a stress generated when the coil wire is wound around the bobbin.

Abstract: A rotor according to an embodiment includes a cylindrical rotor core in which a plurality of magnet embedding grooves are radially arranged, ferrite magnets, and samarium-based magnets. The ferrite magnets and the samarium-base magnets are arranged in juxtaposition in a radial direction in the magnet embedding grooves provided on the rotor.