US 12,113,346 B2
Current measurement device
Hyeon-Jin Song, Daejeon (KR)
Assigned to LG Energy Solution, Ltd., Seoul (KR)
Appl. No. 17/798,183
Filed by LG Energy Solution, Ltd., Seoul (KR)
PCT Filed Jul. 14, 2021, PCT No. PCT/KR2021/009064
§ 371(c)(1), (2) Date Aug. 8, 2022,
PCT Pub. No. WO2022/019565, PCT Pub. Date Jan. 27, 2022.
Claims priority of application No. 10-2020-0089756 (KR), filed on Jul. 20, 2020.
Prior Publication US 2023/0070670 A1, Mar. 9, 2023
Int. Cl. H02H 1/00 (2006.01); B60L 58/10 (2019.01); G01R 19/00 (2006.01); G01R 27/14 (2006.01); G01R 31/374 (2019.01); G01R 31/3835 (2019.01); H01M 10/48 (2006.01); H01M 50/583 (2021.01); H02H 7/18 (2006.01)
CPC H02H 1/0007 (2013.01) [B60L 58/10 (2019.02); G01R 19/0046 (2013.01); G01R 27/14 (2013.01); G01R 31/374 (2019.01); G01R 31/3835 (2019.01); H01M 10/48 (2013.01); H01M 50/583 (2021.01); H02H 7/18 (2013.01); H01M 2200/00 (2013.01); H01M 2220/20 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A current measurement apparatus, comprising:
an electrically conductive first terminal;
an electrically conductive second terminal spaced apart from the first terminal by a predetermined distance;
an electrically conductive resistor positioned in a space between the first terminal and the second terminal, wherein a material of the electrically conductive resistor has a greater specific resistance than materials of the first terminal and the second terminal;
a circuit board including an electric path, the circuit board positioned at a side portion of the first terminal and a side portion of the second terminal, and electrically connected to the first terminal and the second terminal, respectively; and
a control unit mounted on the circuit board and configured to measure a current flowing in the resistor based on a voltage value between the first terminal and the second terminal and a resistance value of the resistor,
wherein the control unit is configured to issue a control signal to cut the resistor based on the measured current,
wherein the circuit board includes a body portion positioned at the side portion of the first terminal and the side portion of the second terminal, a first extending portion extending in a horizontal direction from the body portion and positioned on a surface of the first terminal, and a second extending portion positioned on a surface of the second terminal.