Electrical machine and method of operating the electrical machine
US11735964B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 19, 2021 |
| Grant date | Aug 22, 2023 |
| Priority date | — |
| Expiry date | Feb 19, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K21/14
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electrical machine (20) comprising a stator (21) and a rotor (22) rotatably supported relative to the stator (21) is disclosed. The rotor (22) comprises two first recesses (23) and at least one second recess (24), wherein an air gap (25) is arranged between the stator (21) and the rotor (22), the two first recesses (23) are arranged in the rotor (22) and extend completely through the rotor (22) from the air gap (25) to a shaft (26) on which the rotor (22) is arranged, the two first recesses (23) are arranged in a manner displaced relative to one another by less than 180° along the circumference of the rotor (22), the at least one second recess (24) is arranged in a manner displaced relative to the first recesses (23) by at least 90° along the circumference of the rotor (22), the at least one second recess (24) does not extend through the rotor (22) to the shaft (26), and a first permanent magnet (27) is arranged each in the first recesses (23) and/or a second permanent magnet (28) is arranged each in the at least one second recess (24). In addition, a method of operating the electrical machine (20) is provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.