Stator assembly for a non-static cogging brushless DC motor and method of fabricating the same
US5013953A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 28, 1989 |
| Grant date | May 7, 1991 |
| Priority date | — |
| Expiry date | Feb 28, 2009 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K29/03
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A stator assembly for a non-static cogging brushless DC motor includes a hollow coil forming member fabricated of a nonconductive and nonmagnetic material having an array of generally radially extending teeth. Each tooth has a pair of generally radially extending sidewalls that extend substantially the entire axial length of the coil forming member. A plurality of coils is wound on the teeth of the coil forming member so that the coils are disposed in surrounding relationship with respect to the radially extending sidewalls of the teeth. The teeth on the coil forming member may extend either radially inwardly or radially outwardly thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.