Electric motor and compressor with same
AssigneePanasonic Corporation
InventorsToshiyuki TAMAMURA, Ikuo OZAKI
Life of this patent
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Abstract
An electric motor according to the present invention includes stator (10) which has ring-shaped yoke (11) and a plurality of teeth (12) disposed at the inner peripheral part of yoke (11). Yoke (11) and teeth (12) configure slots (13) in which windings (15) are wound via electric insulator (14). Moreover, the motor includes rotor (20) that is rotatably held and faces the inner periphery of stator (10) via a slight gap. The rotor includes rotor iron core (21) having permanent magnets (22) that are disposed in the inside or on the surface of the core. Furthermore, a plurality of yoke recesses (16) is disposed only in the yoke (11) parts of slots (13).
Claims8
An electric motor comprising:
- a stator including:
- a ring-shaped yoke;
- and
- a plurality of teeth disposed at an inner peripheral part of the yoke, the yoke and the teeth configuring slots in which windings are disposed via electric insulator;
- and
- a rotor being rotatably held, facing an inner periphery of the stator via a gap, and including a rotor iron core having a permanent magnet disposed at one of an inside and a surface of the core,
- wherein a plurality of yoke recesses are disposed only in yoke parts of the slots.
Dependencies are inferred from the claim text.