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Title:
HEAT DISSIPATION-TYPE THREE-PHASE MAGNETIC LATCHING RELAY
Document Type and Number:
WIPO Patent Application WO/2018/214602
Kind Code:
A1
Abstract:
Disclosed is a heat dissipation-type three-phase magnetic latching relay, comprising a housing, three groups of control systems mounted on two sides of the housing, and a magnetic circuit system. Each group of the three groups of control systems is composed of a movable contact (15), a movable spring base (5, 7, 9), a movable spring sheet (16), a stationary contact (17) and a stationary spring base (4, 6, 8), wherein the movable spring base and the stationary spring base are respectively connected to a pin (Y1-Y6) so as to lead out the magnetic latching relay; and the stationary contact is arranged on the stationary spring base, and the movable contact is arranged on the movable spring sheet. The magnetic circuit system is composed of a bracket (10), a coil bracket (13), an iron yoke (11), a magnetic steel assembly (12) and a push sheet (14), wherein the bracket is arranged on an outer housing (2), and the magnetic steel assembly is arranged in the middle of the iron yoke on the bracket; the coil bracket is wound by a coil which is connected to starting and tail end led-out pins of the coil respectively and the magnetically conductive iron yoke; and the magnetic circuit system simultaneously controls, by means of the push sheet, the opening and closing of the movable spring base of each group of control systems. The heat dissipation-type three-phase magnetic latching relay has good heat dissipation performance, which can effectively avoid problems such as a reduced sensitivity or fire disasters caused by poor heat dissipation of a relay.

Inventors:
LI JIANQUAN (CN)
CHEN TING (CN)
QIAN LIGUO (CN)
Application Number:
PCT/CN2018/077136
Publication Date:
November 29, 2018
Filing Date:
February 24, 2018
Export Citation:
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Assignee:
GUANGXI RAMWAY TECH DEVELOPMENT CO LTD (CN)
International Classes:
H01H50/02; H01H50/12; H01H51/01
Foreign References:
CN107170645A2017-09-15
CN206758364U2017-12-15
CN201185161Y2009-01-21
CN201435354Y2010-03-31
Attorney, Agent or Firm:
CHINA TRUER IP (CN)
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