Protective switch for protecting a circuit
US7312687B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 16, 2007 |
| Grant date | Dec 25, 2007 |
| Priority date | — |
| Expiry date | Mar 16, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H73/30
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A protective switch for protecting a circuit includes an operating element or rocker switch, contact connections projecting from a housing, a contact spring electrically connected to a first contact connection and having a free end covering a second contact connection for making contact. A bimetallic element in the housing runs transversely to a slider longitudinal direction and is electrically connected between the first contact connection and through the contact spring to the second contact connection. A slider slides in the housing and has a contact end bearing against and acting upon the contact spring counter to its restoring force in a contact position. The slider is latched by the operating element in a turned-on position. The bimetallic element is coupled to the slider for thermal tripping and has a first longitudinal section at least partly covering and unlatching the slider upon overcurrent to break contact, and a second longitudinal section.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.