Electromagnetic actuator and electrical switching unit including this actuator
US11501940B2 · kind B2 · utility
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2References
10Claims
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Assignee
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Key dates
| Filing date | Jun 28, 2019 |
| Grant date | Nov 15, 2022 |
| Priority date | — |
| Expiry date | Apr 23, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H71/322
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electromagnetic actuator includes a fixed body, a moving part forming a magnetic core of the actuator and being movable in translation with respect to the fixed body between a retracted position and a deployed position, a magnetic piece forming a permanent magnet adjusted to generate a first magnetic force holding the moving part in the retracted position, and a coil adjusted to engender a second magnetic force opposed to the first magnetic force when the coil is supplied with an electrical excitation current. The moving part includes one or more notches formed in a body of the moving part.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.