Electromagnetic actuator and electrical switching unit including this actuator
AssigneeSchneider Electric Industries SAS
InventorsRemy Orban, Olivier Theron, Sebastien Buffat
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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.
Claims10
An electromagnetic actuator, comprising:
- a fixed body;
- a moving part configured to form a magnetic core of the actuator and to move with respect to the fixed body between a retracted position and a deployed position, the moving part having a circular cross-section and one or more notches, the one or more notches not being radial and having a constant width;
- a magnetic piece configured to form a permanent magnet that generates a first magnetic force to hold the moving part in the retracted position;
- and
- a coil configured to generate a second magnetic force opposed to the first magnetic force when the coil is supplied with an electrical excitation current.
Dependencies are inferred from the claim text.