Brushed DC motor and manufacturing method thereof
US11025126B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 20, 2018 |
| Grant date | Jun 1, 2021 |
| Priority date | — |
| Expiry date | Jan 30, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K5/225
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A brushed DC motor includes a motor shell, a stator fixed within the motor shell, an armature rotor rotatably disposed inside the motor shell and surrounding by the stator while forming a gap therebetween with magnetic field, and a brush cap connected with the motor shell by covering an installing opening of the motor shell. The brush cap includes a base layer, an electric circuit layer formed on the base layer, at least one pair of brush frames affixed thereon symmetrically, and at least one pair of brushes respectively installed in the brush frames and electrically connected with the electric circuit layer adapted to receive current and conduct to the armature rotor for driving an output end of the armature rotor to rotate with respect to the stator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.