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US 2010/0133935 A1Published application
Brushless motor
AssigneeMitsubishi Electric Corporation
InventorsHiroyuki Kinugawa, Masafumi Sugawara
Life of this patent
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Abstract
A brushless motor includes an external stator where a magnetic circuit is electrically formed by winding electric wires around an iron core; a bus bar bundling the electric wires and forming an external input terminal; and an internal rotor formed by integrating a permanent magnet and rotatably supported through a bearing with respect to the external stator, wherein an insulation plate is held on one end of the external stator and attached thereto a magnetic pole sensor detecting a magnetic pole of the permanent magnet.
Claims3
A brushless motor comprising:
- an external stator where a magnetic circuit is formed by winding electric wires around an iron core of which insulation is ensured;
- an external case disposed outside of the external stator and fixing a position of the external stator;
- a bus bar bundling the electric wires and forming an external input terminal;
- an internal rotor where a permanent magnet is integrated with a rotating shaft;
- a bearing rotatably supporting both ends of the internal rotor with respect to the external stator;
- and
- a housing holding the bearing and secured integrally to the external case,
- wherein an insulation plate is held on one end of the external stator and attached thereto a magnetic pole sensor detecting a magnetic pole of the permanent magnet.
5 more elements
Dependencies are inferred from the claim text.