Molded stator with annular substrate having inner diameter smaller than stator core inner diameter and molded motor having the molded stator
US8575795B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 8, 2009 |
| Grant date | Nov 5, 2013 |
| Priority date | — |
| Expiry date | Jul 25, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K15/12
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A stator includes an annular substrate, an outer-diameter portion of the substrate provided at a tip end of an outer-diameter leg of a bobbin, the substrate having a smaller inner diameter than an inner diameter of the stator core. When stator resin provides sealing, the outer-diameter portion of the substrate can be supported by the tip end of the outer-diameter leg of the bobbin, and an inner-diameter portion of the substrate can be supported by a mold. Accordingly, even when the moment of inertia of a molded motor is increased, the substrate can be prevented from being deformed by a molding pressure with the stator resin, without the area of the substrate being decreased.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.