Electromagnetic device and circuit for driving the same

Details Electromagnetic device and circuit for driving the same Electromagnetic device and circuit for driving the same

B - Operations, Transporting

06

B

B06B 1/04 (2006.01) G08B 6/00 (2006.01) H02K 33/04 (2006.01)

Patent

CA 2345547

An electromagnetic device is provided with a coil bobbin (1) supporting an excitation coil (5) and a U-shaped movable iron piece (2) whose one side (2a) is inserted in and fixed to a hollow section (1a) of the coil bobbin (1) in a state where it is held between a pair of iron cores (3) and (4). A remaining side (2b) of the U-shaped movable iron piece (2) is inserted in a through-hole section (1c) of the coil bobbin (1) and has a resilient characteristic that it is spaced away from the one side (2a). The top surface of each of rising sections (3a) and (3b) of the iron cores (3) and (4) is configured by bending the end of each of the rising sections (3a) and (3b) and is located to be opposite to the top of the remaining side (2b) at a preset distance away.

L'invention concerne un dispositif électromagnétique comprenant un enroulement (1) portant une bobine magnétique (5) et un fer (2) mobile en U dont un côté (2a) est entouré solidaire par deux noyaux (3, 4) dans une cavité (1a) de la bobine (1). L'autre côté (2b) dudit fer (2) est inséré dans un trou (1c) de l'enroulement (1) et écarté de manière résiliente du côté (2a). Les noyaux (3, 4) sont courbés de façon à former des arêtes montantes (3a, 4a) dont les sommets sont opposés à l'autre côté (2b) à une distance prédéterminée.

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