Electromagnetic device and electromagnetic relay equipped with electromagnetic device
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United States of America
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Jan 18, 2022
Grant Date -
Jan 2, 2020
app pub date -
Sep 13, 2019
filing date -
Sep 13, 2019
priority date (Note) -
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status (Latency Note)
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Abstract
An electromagnetic device includes a coil, a fixed iron core, a movable iron core configured to reciprocate to separate from the fixed iron core by a predetermined gap when a current applied to the coil is stopped and move to the fixed iron core by an attractive force when the current is applied to the coil, and a permanent magnet. The permanent magnet is arranged so that the permanent magnet is opposed to the gap in a second direction perpendicular to a first direction and separated from the fixed iron core and the movable iron core with a space interposed therebetween. A direction of a second magnetic flux generated by the permanent magnet conforms to a direction of the first magnetic flux between opposed surfaces of the fixed iron core and the movable iron core.
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