Coil structure for a coreless motor
US8502431B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 7, 2010 |
| Grant date | Aug 6, 2013 |
| Priority date | — |
| Expiry date | Aug 16, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K3/28
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A coil structure for a coreless motor includes a plurality of first conductive traces and a plurality of second conductive traces. The first conductive traces are disposed in succession relative to one another, and are each arranged into a planar spiral configuration having a substantially polygonal shape. At least one adjacent pair of the first conductive traces cooperate to define a space therebetween. Each of the second conductive traces is disposed in the space defined by a corresponding adjacent pair of the first conductive traces, and is arranged into a planar spiral configuration that has one of a substantially triangular shape and a substantially rhombic shape so as to substantially fill the space.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.