Title:
RELAY SWITCH DEVICE FOR TURNING ON/OFF HIGH CURRENT OF BATTERY PACK
Document Type and Number:
WIPO Patent Application WO/2020/096387
Kind Code:
A1
Abstract:
A relay switch device is disclosed. A relay switch device according to one aspect of the present invention is installed on a transmission line of a battery pack and electrically connects or disconnects the battery pack and a load. The relay switch device comprises: a relay assembly provided with a contact part for transmitting a current to the transmission line or cutting off the transmission, and provided with a coil part serving as an electromagnet for opening and closing the contact part; a control unit for supplying or shutting off relay power applied to the coil part; and an operation voltage sensing unit for sensing an operation voltage applied from the control unit to the coil part. The operation voltage sensing unit can transmit an error message to the control unit when the operation voltage is lower than a preset reference operation voltage or is outside of a preset normal operation voltage range.
Inventors:
LEE JIN-HYUNG (KR)
LEE CHANG-BOK (KR)
LEE CHANG-BOK (KR)
Application Number:
PCT/KR2019/015094
Publication Date:
May 14, 2020
Filing Date:
November 07, 2019
Export Citation:
Assignee:
LG CHEMICAL LTD (KR)
International Classes:
H01H50/16; H01H50/54; H01H50/64; H01M10/42
Foreign References:
| JP2005038656A | 2005-02-10 | |||
| JP2013054920A | 2013-03-21 | |||
| KR20170000443U | 2017-02-02 | |||
| JP2004178967A | 2004-06-24 | |||
| KR20170099287A | 2017-08-31 |
Attorney, Agent or Firm:
PHIL & ONZI INT'L PATENT & LAW FIRM (KR)
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