Motor external rotor, brushless permanent magnet motor and electrical product
US12034340B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 16, 2020 |
| Grant date | Jul 9, 2024 |
| Priority date | — |
| Expiry date | Mar 23, 2042 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/64
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The embodiments of the present disclosure provide a motor external rotor, a brushless permanent magnet motor and an electrical product, the motor external rotor including: a first inner cylinder portion, an outer cylinder portion located at a radial outer side of the first inner cylinder portion, and a connection portion radially connecting the first inner cylinder portion and the outer cylinder portion, the connection portion including: a plurality of first web sections extending from an axial side of an outer circumferential surface of the first inner cylinder portion in a direction away from the first inner cylinder portion; a plurality of second web sections extending from the other axial side of the outer circumferential surface of the first inner cylinder portion in a direction away from the first inner cylinder portion, and the plurality of second web sections and the plurality of first web sections being arranged circumferentially at intervals; and a plurality of axial connection sections extending from the outer circumferential surface of the first inner cylinder portion in a direction away from the first inner cylinder portion, and axially connecting the first web section…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.