Circuit breaker with insulation device
US5548258A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 14, 1995 |
| Grant date | Aug 20, 1996 |
| Priority date | — |
| Expiry date | Apr 14, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H9/34
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A circuit breaker with an insulation device is formed of a molded case having side walls to form a chamber, a stationary contact member situated in the chamber and fixed on the molded case, a moving contact member movably connected to the molded case, a U-shaped magnetic driving core attached to the stationary contact member and having a pair of arms projecting outwardly from the stationary contact member, and an insulation cover. The side walls has slots therein, and the arms are situated inside the slots so that the outer surfaces of the arms are covered by the side walls of the molded case. The insulation cover has arm-shaped and board-shaped parts and is attached onto the outer surface of the stationary contact member. The board-shaped part covers the outer surface of the stationary contact member except the contact point, and the arm-shaped parts covers the inner surfaces of the arms of the magnetic driving core so that the inner and outer surfaces of the magnetic driving core are completely covered.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.