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Patent Searching and Data


Title:
ELECTROMAGNETIC RELAY
Document Type and Number:
WIPO Patent Application WO/2019/181359
Kind Code:
A1
Abstract:
The present disclosure addresses the problem of reducing magnetization remaining in a movable element. An electromagnetic relay (100) is provided with fixed contacts (111, 121), movable contacts (21, 22), an electromagnet device (10), and a second coil (102). The movable contacts (21, 22) move between a closed position where the movable contacts are in contact with the fixed contacts (111, 121) and an open position where the movable contacts are away from the fixed contacts (111, 121). The electromagnet device (10) has a first coil (101) and a movable element (15). The movable element (15) operates upon receiving a magnetic flux that is generated by current flowing through the first coil (101), and moves the movable contacts (21, 22) from one of the closed position and the open position to the other position. By current flowing through the second coil (102), the second coil (102) applies, to the movable element (15), at least a magnetic flux in the opposite direction of the magnetic flux generated by the first coil (101).

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Inventors:
YAMAKAWA TAKEHIKO
SAKIYAMA KAZUYUKI
KATO AKIRA
Application Number:
PCT/JP2019/006686
Publication Date:
September 26, 2019
Filing Date:
February 22, 2019
Export Citation:
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Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
H01H50/16; H01H50/42
Foreign References:
JP2015170531A2015-09-28
JPH0534642U1993-05-07
JPS5592684U1980-06-26
JPH06267739A1994-09-22
JPH05298994A1993-11-12
Attorney, Agent or Firm:
HOKUTO PATENT ATTORNEYS OFFICE (JP)
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