Electrical contact device and rotating electric machine including the electrical contact device
US11670901B2 · kind B2 · utility
0Cited by
7References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 18, 2019 |
| Grant date | Jun 6, 2023 |
| Priority date | — |
| Expiry date | Mar 25, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2201/038
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electrical contact device includes a high electric potential-side contact and a low electric potential-side contact having a lower electric potential than the high electric potential-side contact. The high electric potential-side contact and the low electric potential-side contact are configured to be brought into and out of contact with each other. At least one of the high electric potential-side contact and the low electric potential-side contact is formed of a low-boiling point material whose boiling point is lower than 2562° C. or a mixed material that contains the low-boiling point material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.