Electromagnetic actuator and circuit breaker comprising such an actuator
US10283301B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 10, 2015 |
| Grant date | May 7, 2019 |
| Priority date | — |
| Expiry date | Nov 10, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2235/01
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electromagnetic actuator including a magnetic housing, a coil that is rigidly connected to the housing and is capable of being connected to an electric circuit, a magnetic core that is arranged in the coil and can move along a central axis defined by the coil and according to the strength of the current flowing in the coil, and a shunt that is arranged in the coil and includes a magnetocaloric material the magnetisation of which is temperature-dependent. The shunt is arranged in the coil along the central axis along a length so as to create an air gap between the shunt and the magnetic core. The actuator further includes a device for attaching the shunt to the housing that are designed to adjust the length.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.