Rotary electromagnet
The invention concerns an electromagnetic device of a switching apparatus comprising a mobile armature ( 20 ) rotating in a fixed frame ( 10 ) between two inactive and active positions, at least a permanent magnet ( 15, 15 ′) mounted in the fixed frame, at least a coil ( 24, 25 ) mounted in the mobi...
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| Main Authors | , , |
|---|---|
| Format | Patent |
| Language | English |
| Published |
29.01.2004
|
| Online Access | Get full text |
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| Summary: | The invention concerns an electromagnetic device of a switching apparatus comprising a mobile armature (
20
) rotating in a fixed frame (
10
) between two inactive and active positions, at least a permanent magnet (
15, 15
′) mounted in the fixed frame, at least a coil (
24, 25
) mounted in the mobile armature and control means (
40
) capable of delivering a control current (
44
) into the coil. The mobile armature is monostable; in inactive position, a lever (
30
) actuated by the mobile armature brings about the separation between the fixed contacts (
31
) and the mobile contacts (
32
) of the apparatus. In active position, the lever is released from the mobile armature and a spring (
35
) presses the mobile contact on the fixed contacts. |
|---|