Brushless direct current motor
US11404940B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 29, 2020 |
| Grant date | Aug 2, 2022 |
| Priority date | — |
| Expiry date | Dec 12, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K2213/03
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A brushless DC motor, including a base, an insulation seat, a rotor assembly, a revolving shaft, a stator assembly, a control panel, a Hall circuit board, and an end cover. The revolving shaft is connected to the rotor assembly. The rotor assembly includes a housing and a plurality of magnetic tiles. The housing includes an inner wall and a cavity defined by the inner wall. The plurality of magnetic tiles is disposed on the inner wall. The stator assembly is disposed in the cavity. The base includes a cylindrical sleeve extending from a center of the base to the cavity of the rotor assembly. The stator assembly is connected to the cylindrical sleeve; two ends of the cylindrical sleeve are provided with a first bearing and a second bearing, respectively; and two ends of the revolving shaft are supported by the first bearing and the second bearing, respectively.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.