Title:
RELAY CONTROL DEVICE, BATTERY PACK, AND ELECTRIC VEHICLE
Document Type and Number:
WIPO Patent Application WO/2022/197161
Kind Code:
A1
Abstract:
A relay control device according to the present invention is used for a relay comprising: a contact connected between a positive electrode of a battery and a load; and a coil connected between a relay power terminal and ground and moving the contact to a closed position during application of an electric current. The relay control device comprises: a coil control switch turned on in response to a first switching signal, which is a signal having a voltage level greater than or equal to a first threshold voltage in response to a relay on-command; and a relay holding circuit configured to store emergency power using power supplied from the battery.
Inventors:
CHOI HO-BEEN (KR)
KIM YOUNG-MIN (KR)
KIM YOUNG-MIN (KR)
Application Number:
PCT/KR2022/003850
Publication Date:
September 22, 2022
Filing Date:
March 18, 2022
Export Citation:
Assignee:
LG ENERGY SOLUTION LTD (KR)
International Classes:
H02H3/027; B60L58/18; H01H47/00; H01M10/42; H02J7/34; H02J9/06
Foreign References:
| KR20190084481A | 2019-07-17 | |||
| JP2013127864A | 2013-06-27 | |||
| JP2012182984A | 2012-09-20 | |||
| JP2004217000A | 2004-08-05 | |||
| US20140021961A1 | 2014-01-23 | |||
| KR20210035516A | 2021-04-01 |
Attorney, Agent or Firm:
PHIL & ONZI INT'L PATENT & LAW FIRM (KR)
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