The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 09, 2019
Filed:
Jun. 17, 2016
Fuji Electric Fa Components & Systems Co., Ltd., Tokyo, JP;
Takashi Tsutsumi, Kounosu, JP;
Masaaki Watanabe, Kounosu, JP;
Hideki Daijima, Kounosu, JP;
Shota Shiinoki, Kounosu, JP;
FUJI ELECTRIC FA COMPONENTS & SYSTEMS CO., LTD., Tokyo, JP;
Abstract
A polarized DC electromagnetic device and electromagnetic contactor using same to improve assembly efficiency without size increase of the electromagnetic device. The device includes a plunger inserted through a cylindrical portion of a spool around which an excitation coil is wound and having a first armature and a second armature attached to both ends, an outer yoke attracting the first armature and the second armature, an inner yoke disposed inside the outer yoke and attracting the second armature, and a permanent magnet disposed between the outer yoke and the inner yoke. The spool includes radially protruding flange portions respectively formed at both ends of the cylindrical portion, a coil terminal attachment portion formed in the flange portion on the first armature side, and a coil terminal attached to the coil terminal attachment portion.