DC operated polarized electromagnet and electromagnetic contactor using the same

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United States of America Patent

PATENT NO 10026576
APP PUB NO 20160189901A1
SERIAL NO

15065268

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Abstract

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The DC operated polarized electromagnet includes a spool around which an excitation coil is wound and that has a central opening, a plunger having first and second armatures, fitted individually, an outer yoke enclosing opposing side faces of the spool so as to attract the first armature, an inner yoke arranged on the inner side of the outer yoke so as to attract the second armature, and permanent magnets arranged between the outer yoke and the inner yoke, and reduces magnetoresistance by setting the thickness of the outer yoke thicker than the thickness of the inner yoke so that convergent magnetic flux in the plunger is diverted into the outer yoke.

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Patent Owner(s)

Patent OwnerAddress
FUJI ELECTRIC FA COMPONENTS & SYSTEMS CO LTD1-5-45 MINAMI KONOSU-SHI SAITAMA 369-0192

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Daijima, Hideki Tokyo, JP 10 40
Shiinoki, Shota Tokyo, JP 7 19
Tsutsumi, Takashi Tokyo, JP 79 551
Watanabe, Masaaki Tokyo, JP 38 274

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