Opposite arc isolation device of high voltage direct current relay
US10453628B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 7, 2016 |
| Grant date | Oct 22, 2019 |
| Priority date | — |
| Expiry date | Jul 7, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H51/065
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention discloses an opposite arc isolation device of a high voltage direct current relay, including a movable contact assembly and a fixed contact assembly, wherein the movable contact assembly includes a movable spring plate and a left movable contact and a right movable contact fixed at left and right ends of the movable spring plate; the fixed contact assembly includes a left fixed contact corresponding to the left movable contact and a right fixed contact corresponding to the right movable contact; an arc isolation member made of insulating material is provided between the left movable contact and the right fixed contact; the front-to-rear dimension L of the arc isolation member is greater than the front-to-rear width M of a joint surface of the movable contacts with the fixed contacts; and, the arc isolation member has a height H that enables the isolation of opposite arcs between the two sets of movable and fixed contacts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.