Rotary electric machine
AssigneeToyota Jidosha Kabushiki Kaisha
InventorHiroyuki Hattori
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Abstract
A rotary electric machine includes a stator including a stator core and stator coils, which is cylindrical centered on an axis and has no slots, and a rotor disposed radially inward of the stator and including a rotor core and permanent magnets. (a) The stator coil is fixed to the inner peripheral surface inside the stator core. (b) The stator coil has coil end portions protruding outward from both end portions of the stator core in the direction of the axis CL. (c) In the direction of the axis CL, the length of the rotor core and the permanent magnets is longer than the length of the stator core, and the rotor core and the permanent magnets are arranged at positions including the stator core.
Claims7
A rotary electric machine comprising:
- a stator including a stator coil and a stator core that has a cylindrical shape centered on an axis, the stator coil being fixed to an inner peripheral surface of the stator core, and
- a rotor that is disposed radially inward of the stator and includes a rotor core and a permanent magnet, wherein:
- in a direction of the axis, the stator coil includes a protrusion that protrudes outward from both ends of the stator core;
- a center of the stator core, a center of the permanent magnet, and a center of the rotor core are aligned along a same center line as viewed in a radial direction of the stator core, the permanent magnet, and the rotor core in which the axis serves as a center;
- and
- in the direction of the axis, a length of the rotor core is equal to a length of the permanent magnet, and the length of the permanent magnet is longer than a length of the stator core.
Dependencies are inferred from the claim text.