Electromagnetic relay
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United States of America Patent
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Jan 24, 2012
Grant Date -
Jul 2, 2009
app pub date -
Feb 7, 2007
filing date -
Feb 8, 2006
priority date (Note) -
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status (Latency Note)
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Abstract
The present invention provides an electromagnetic relay that can achieve desired operation characteristics by simple and inexpensive construction even if it has a small thickness. Therefore, a movable iron piece 20 is rotated by excitation or non-excitation of an electromagnet, a movable contact piece 43 is elastically deformed through a card 21, and a movable contact 46 opens and closes fixed contacts of fixed contact pieces. The movable iron piece 20 is provided with a card pressing portion 36 capable of pressing the card 21. The card 21 is provided with a contact piece pressing portion 37 capable of pressing the movable contact piece 43 by being rotated around a fulcrum. At least one of the movable iron piece and the card is provided with a press position changing portion, wherein when rotating the movable iron piece 20, force transmission from the movable iron piece 20 to the card 21 is performed at a position more distant from a press position by the card pressing portion 36 of the iron piece 20 with respect to the fulcrum, and then performed by the card pressing portion 36.
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