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:
Sep. 02, 2014
Filed:
Apr. 03, 2012
Kouetsu Takaya, Kounosu, JP;
Yasuhiro Naka, Kounosu, JP;
Kenji Suzuki, Kounosu, JP;
Yuichi Yamamoto, Kounosu, JP;
Yuji Shiba, Kounosu, JP;
Kouetsu Takaya, Kounosu, JP;
Yasuhiro Naka, Kounosu, JP;
Kenji Suzuki, Kounosu, JP;
Yuichi Yamamoto, Kounosu, JP;
Yuji Shiba, Kounosu, JP;
Fuji Electric Co., Ltd., Kawasaki-shi, JP;
Fuji Electric FA Components & Systems Co., Ltd., Tokyo, JP;
Abstract
An electromagnetic contactor has a contact device having a pair of fixed contacts and a movable contact; and an electromagnet unit including an exciting coil driving a movable plunger connected through a connecting shaft. The contact device is configured such that L-shaped portions have a contact portion formed in the pair of fixed contacts fixed maintaining a predetermined interval, and two ends of the movable contact are disposed to be capable of contacting to and separating from the contact portions of the L-shaped portion on a side opposite to that of the electromagnet unit. The electromagnet unit includes a magnetic yoke enclosing a plunger drive portion, a movable plunger having a leading end protruding through an aperture formed in the magnetic yoke and urged by a return spring, and a ring-form permanent magnet magnetized in a movable direction of the movable plunger and fixed to enclose a peripheral flange portion.