Electromagnetic actuator with magnetic latching and switching device comprising one such actuator
US8912871B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 15, 2010 |
| Grant date | Dec 16, 2014 |
| Priority date | — |
| Expiry date | Nov 15, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H33/6662
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electromagnetic actuator comprising a core moving between a latched position and an open position, a permanent magnet, a coil designed to generate a first magnetic control flux to move the core from an open position to a latched position, and a second magnetic control flux designed to facilitate movement of the moving core from the latched position to the open position. The permanent magnet is positioned on the moving core so as to be at least partly outside the fixed magnetic circuit in which the first magnetic control flux flows in the open position, and to be at least partly inside the fixed magnetic circuit used for flow of a magnetic polarization flux of the magnet in the latched position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.