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US 2009/0021087 A1Published application
Motor
AssigneeNidec Corporation
InventorsJumpei KITAMURA, Yuji YABUUCHI
Life of this patent
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Abstract
A motor includes a rotor that is rotatable about a center axis, a stator facing the rotor, a bearing housing arranged to support the stator and having a plurality of fixing portions, and a base having a through hole. The base is fixed to the bearing housing via the fixing portions. The base also includes a recess and at least some of the fixing portions are engaged in the recess. At least one of the fixing portions is arranged to engage a surface at a radially inner portion of the base.
Claims20
A motor comprising:
- a rotor rotatable about a center axis;
- a stator facing the rotor;
- a bearing housing arranged to support the stator and having a plurality of fixing portions;
- and
- a base having a through hole;
- wherein
- the base is fixed to the bearing housing via the fixing portions.
4 more elements
A method for manufacturing a motor comprising the steps of:
- forming a base by pressing a material;
- setting the base inside a mold;
- injecting molten resin into an internal space of the mold;
- cooling the mold and molten resin to form a bearing housing including a plurality of runners;
- removing the bearing housing and the runners from the mold;
- and
- cutting the runners from the bearing housing.
4 more elements
Dependencies are inferred from the claim text.