Motor and electric apparatus including the same
US11777362B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 29, 2021 |
| Grant date | Oct 3, 2023 |
| Priority date | — |
| Expiry date | Nov 29, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K2211/03
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A motor includes a stator that includes a stator core around which a stator winding is wound; magnets; a rotating body; a shaft; a rotor; a first bearing; a second bearing; a first metal bracket that fixes the first bearing; and a second metal bracket that fixes the second bearing. The stator core, the first metal bracket, and the second metal bracket are electrically connected, and when a connection point between the stator core and the first metal bracket or the second metal bracket is defined as a connection point A of a bearing outer ring, a capacitive member having a capacitance Cn is located between a portion having the same potential as the connection point A and a portion having a zero reference potential of a drive circuit that applies a voltage to the stator core.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.