Motor
US11218049B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 20, 2018 |
| Grant date | Jan 4, 2022 |
| Priority date | — |
| Expiry date | Feb 7, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K2203/09
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In a motor, busbars each includes a grasping portion to grasp a conducting wire extending from a coil. A pair of arm portions in each of the grasping portions extend from a base portion to a same side in a circumferential direction. A busbar holder includes a busbar holder body, and a cylindrical first central tubular portion centered on a central axis, projecting to a second axial side from the busbar holder body. A bearing holder includes a first central hole portion centered on the central axis, and extending through the bearing holder in an axial direction. The first central tubular portion is fitted in the first central hole portion. One of the bearing holder and the busbar holder includes a hole portion recessed in the axial direction. Another one of the bearing holder and the busbar holder includes a fitting projection portion projecting in the axial direction. The fitting projection portion is fitted in the hole portion. An axial dimension of a portion of the first central tubular portion fitted in the first central hole portion is greater than an axial dimension of a portion of the fitting projection portion fitted in the hole portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.