Thin brushless motor having resin-insulated concentric ring-shaped bus bars
US6856057B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Oct 28, 2002 |
| Grant date | Feb 15, 2005 |
| Priority date | — |
| Expiry date | Jan 1, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K2203/09
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A centralized power distribution unit for a vehicular thin brushless motor includes a plurality of bus bars, a resin insulation layer that covers the bus bars, and an insulating holder having a plurality of holding grooves that hold the bus bars. The bus bars are pre-bent in a thickness direction to be formed into a substantially annular shape. Each of the bus bars is provided correspondingly with a phase of the motor. The holding grooves are formed in parallel extending along a circumferential direction of the centralized power distribution unit. The bus bars are respectively inserted into the holding grooves, and are thus stacked in a radial direction of the centralized power distribution unit. The insulating holder and the bus bars are covered by the resin insulation layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.