Motor stator assembly and fabrication method thereof
AssigneeLG Electronics Inc.
InventorsJin-Soo Park, Byung-Taek Kim
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Abstract
Disclosed is a motor stator assembly comprising: a plurality of yokes manufactured by laminating a plurality of steel sheets having a predetermined length; and a plurality of poles engaged between the yokes and formed by molding magnetic material in a mold, on which coil is wound. In the assembly, material loss can be reduced at the time of blanking operation, and additional protector is not required. According to this, a winding radius of coil is reduced thus to reduce coil amount on the basis of a constant number of times of winding. Also, by using magnetic powder material and silicon steel, productivity is enhanced and motor efficiency is enhanced.
Claims21
A motor stator assembly comprising:
- a plurality of yokes fabricated by laminating a plurality of steel sheets having a predetermined length;
- and
- a plurality of poles engaged between the yokes and formed by molding magnetic material in a mold, on which coil is wound.
A manufacturing method of a motor stator assembly comprising the steps of:
- a first step of forming a plurality of yoke plates by blanking steel plate of a predetermined shape;
- a second step of forming a yoke by laminating the yoke plates with a predetermined height;
- a third step of forming a predetermined frame by installing the laminated yoke into a mold;
- a fourth step of filling magnetic powder material in an empty space of the mold;
- a fifth step of forming a pole engaged to the yoke by applying a predetermined pressure and heat to the filled magnetic powder material;
- and
- a sixth step of removing the mold and then winding coil to the pole.
Dependencies are inferred from the claim text.