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US 2018/0123426 A1Published application
Ac motor with reduction mechanism
AssigneeNational Cheng Kung University
InventorsHong-sen Yan, Yi-chang Wu, Jian-liang Lin, Kuan-chen Chen
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Abstract
An AC motor with a reduction mechanism is disclosed. The AC motor has a stator unit, a rotor unit, and a reduction transmission unit. An axial space of the AC motor can be substantially reduced by providing the reduction transmission unit directly built in the AC motor, and a path of the power transmission between the rotor unit and an output shaft can be reduced, so that the loss of the mechanical energy can be lowered.
Claims6
An AC motor with a reduction mechanism, comprising:
- a stator unit including:
- a stator body having an inner annular surface and an outer annular surface;
- a plurality of outer tooth portions formed on the outer annular surface of the stator body;
- a plurality of stator salient poles disposed on the inner annular surface of the stator body;
- and
- a plurality of stator coils wound on the stator salient poles, respectively;
- a rotor unit including:
- a rotor body having a front portion and a rear portion extended form the front portion;
- a plurality of rotor salient poles formed on the rear portion of the rotor body;
- and
- a plurality of rotor coils wound on the rotor salient poles, respectively, and configured to induct with the stator salient poles;
- and
- a reduction transmission unit including:
- at least one transmission gear engaged with the outer tooth portions of the stator unit;
- a transmission shaft assembled to the transmission gear;
- an actuation arm including a first end assembled to the front portion of the rotor body and a second end assembled to the transmission shaft;
- and
- an output shaft assembled to the first end of the actuation arm;
- wherein the transmission gear rotates around the outer tooth portions of the stator unit through the actuation arm, and the rotor body is configured to drive the actuation arm to actuate the output shaft to rotate.
16 more elements
Dependencies are inferred from the claim text.