Invention Grant
- Patent Title: Electromagnetic relay
- Patent Title (中): 电磁继电器
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Application No.: US15073629Application Date: 2016-03-17
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Publication No.: US09530599B2Publication Date: 2016-12-27
- Inventor: Katsutoshi Yamagata , Tsukasa Nishimura
- Applicant: Panasonic Intellectual Property Management Co., Ltd.
- Applicant Address: JP Osaka
- Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
- Current Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
- Current Assignee Address: JP Osaka
- Agency: Greenblum & Bernstein, P.L.C.
- Priority: JP2015-078644 20150407
- Main IPC: H01H51/22
- IPC: H01H51/22 ; H01H50/56

Abstract:
An electromagnetic relay includes an electromagnet block, a pair of fixed contacts, a movable spring, and a stopper. The electromagnet block includes an exciter coil and an armature. The movable spring includes a fixed portion and a movable portion. The fixed portion is fixed to the electromagnet block. The movable portion contacts fixed contact and is separated from the fixed contacts in response to turning on and off of an energizing of the exciter coil. The stopper configured to restrict a movement of the movable portion. The armature is fixed to the movable portion and is displaced unitarily with the movable portion. The movable spring is configured to, upon turning on the energizing of the exciter coil, cause the movable portion to move, by magnetic force, in an approaching direction in which the movable portion approaches the fixed contacts with the fixed portion functioning as a fulcrum, and contact the fixed connection portions. The movable spring is configured to, upon turning off the energizing of the exciter coil, cause the movable portion to be separated, by restoring force, from the fixed contacts in a separating direction in which the movable portion is separated from the fixed contacts. The stopper is configured to, upon turning on the energizing of the exciter coil, contact the movable portion and reduce a moving speed of the movable portion in the approaching direction before the movable portion contacts the fixed contacts. The stopper is configured to, upon turning off the energizing of the exciter coil, contact the armature and reduce the moving speed of the movable portion in the separating direction.
Public/Granted literature
- US20160300679A1 ELECTROMAGNETIC RELAY Public/Granted day:2016-10-13
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