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Patent Searching and Data


Title:
RELAY AND POWER BATTERY CIRCUIT USING THE SAME
Document Type and Number:
WIPO Patent Application WO/2019/057026
Kind Code:
A1
Abstract:
The present invention provides a relay for a high voltage circuit. A switch of the relay is driven by a low voltage source. The relay comprises a main coil and a first armature cooperating with the main coil, wherein a coil current of the main coil is powered by the low voltage source, and the first armature is located in the high voltage circuit in a corresponding position to disconnect or close the high voltage circuit in response to power off or power on of the main coil; a secondary coil cooperating with the first armature and a drive circuit for supplying power to the secondary coil, wherein the drive circuit is powered by a high voltage source of the high voltage circuit, and the secondary coil regains power as the secondary coil is closed, thereby generating additional electromagnetic force to put the first armature into a closed position; and a second armature cooperating with the main coil, wherein the second armature is located in the drive circuit and in a corresponding position to disconnect or close the drive circuit in response to power off or power on of the main coil. The present invention also provides a power battery circuit using the relay.

Inventors:
KONG, Zhijie (Room 510-1, 77 Laigang Road Qingpu District, Shanghai 2, 201702, CN)
Application Number:
CN2018/106151
Publication Date:
March 28, 2019
Filing Date:
September 18, 2018
Export Citation:
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Assignee:
WM SMART MOBILITY (SHANGHAI) CO., LTD. (Room 510-1, 77 Laigang Road Qingpu District, Shanghai 2, 201702, CN)
International Classes:
H01H50/16; H01H47/04; H01H51/04; H01M10/42
Foreign References:
CN107610980A2018-01-19
CN103578854A2014-02-12
CN204464183U2015-07-08
Attorney, Agent or Firm:
SHANGHAI PATENT & TRADEMARK LAW OFFICE, LLC (435 Guiping Road, Shanghai 3, 200233, CN)
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