Polygonal frame structure with armature core with connected and open core sheets inside the frame
US11735963B2 · kind B2 · utility
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72References
19Claims
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Key dates
| Filing date | Dec 16, 2020 |
| Grant date | Aug 22, 2023 |
| Priority date | — |
| Expiry date | Nov 3, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K2213/03
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In a frame structure of a motor, when the number of angles of a frame is 4M (M is a natural number, and M≥1), and the number of slots of an armature core is 6N (N is a natural number, and N≥1), the armature core is inserted into the frame in such a manner as to form a variation θ within a predetermined range in a circumferential direction between a reference line that is orthogonal to two opposing sides of the frame and passes through a rotation axis of the frame, and a straight line linking magnetic poles symmetric about a point with respect to the rotation axis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.