Electric motor, rotary actuator and rotary apparatus
AssigneeKeihin Corporation
InventorsHidefumi Abe, Hideki Sasaki, Toshiro Mayumi, Eishin Matsumoto
Life of this patent
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Abstract
A rotary actuator including: a housing that rotatably supports thereinside a rotor shaft of an electric motor; an eccentric shaft portion that is provided on a protruding end portion of the rotor shaft that protrudes outside the housing; an external gear that is rotatably supported on the eccentric shaft portion via a bearing; an internal gear that is fixed to an outer surface of the housing and meshes with the external gear; and a transmitting portion that is provided on the external gear, and transmits rotation force to an external output shaft.
Claims4
An electric motor in which a rotor, a ring-shaped stator core that is positioned so as to encircle the rotor and that has a plurality of stator teeth around which coils are wound, a control board on which electronic components are mounted, motor driving leads that are used for electrically connecting the coils to the control board, and connector leads that are electrically connected to the control board are assembled inside a housing, wherein
- the control board is placed on an outer circumferential side of the stator core so as to be parallel with the axial direction of the stator core;
- and
- the motor driving leads and the connector leads are in contact with board side leads that are integral with the control board.
Dependencies are inferred from the claim text.