Invention Grant
- Patent Title: Electromagnetic relay
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Application No.: US13914869Application Date: 2013-06-11
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Publication No.: US08717128B2Publication Date: 2014-05-06
- Inventor: Ryuji Sasaki , Takashi Yuba
- Applicant: Fujitsu Component Limited
- Applicant Address: JP Tokyo
- Assignee: Fujitsu Component Limited
- Current Assignee: Fujitsu Component Limited
- Current Assignee Address: JP Tokyo
- Agency: IPUSA, PLLC
- Priority: JP2010-014530 20100126
- Main IPC: H01H9/30
- IPC: H01H9/30 ; H01H51/22

Abstract:
An electromagnetic relay includes multiple contact sets each including a fixed contact and a movable contact displaceable in a first direction to approach the fixed contact and in a second direction to move away from the fixed contact; multiple permanent magnets each provided on the peripheral side of a corresponding one of the contact sets and having a polarity direction perpendicular to the first and second directions; and multiple ferromagnetic bodies parallel to the polarity directions of the permanent magnets and the first and second directions, wherein in a DC electric current flowing through each of the contact sets, the direction of a force exerted based on the permanent magnet is equal to the direction of a force exerted based on the ferromagnetic body.
Public/Granted literature
- US20130271244A1 ELECTROMAGNETIC RELAY Public/Granted day:2013-10-17
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