Motor rotor and permanent magnet motor
US11522397B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Dec 18, 2018 |
| Grant date | Dec 6, 2022 |
| Priority date | — |
| Expiry date | May 7, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K2213/03
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present disclosure provides a motor rotor and a permanent magnet motor. The motor rotor includes a rotor body. In a section perpendicular to a central axis of the rotor body, a first slot side has a first and a second endpoint, and a second slot side has a third and a fourth endpoint. A distance from a connecting line between the first endpoint and the third endpoint to a center of the rotor body is denoted by h1, a radius of the rotor body is denoted by R, and h1 and R satisfy 0.96≤h1/R≤0.99. A connecting line between the first endpoint and the center of the rotor body is a first connecting line, a connecting line between the third endpoint and the center of the rotor body is a second connecting line, and an included angle between the two connecting lines is denoted Φ and satisfies: 3.7°≤Φ≤5.6°.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.