US 12,244,033 B2
Battery pack, electronic device and vehicle
Byeong-Jun Jeon, Daejeon (KR); Young-Su Son, Daejeon (KR); and Bum-Jick Lee, Daejeon (KR)
Assigned to LG ENERGY SOLUTION, LTD., Seoul (KR)
Appl. No. 17/761,031
Filed by LG Energy Solution, Ltd., Seoul (KR)
PCT Filed Jan. 7, 2021, PCT No. PCT/KR2021/000220
§ 371(c)(1), (2) Date Mar. 16, 2022,
PCT Pub. No. WO2021/141423, PCT Pub. Date Jul. 15, 2021.
Claims priority of application No. 10-2020-0002621 (KR), filed on Jan. 8, 2020.
Prior Publication US 2022/0336908 A1, Oct. 20, 2022
Int. Cl. H01M 50/284 (2021.01); B60L 50/64 (2019.01); H01M 10/42 (2006.01); H01M 50/213 (2021.01); H01M 50/233 (2021.01); H01M 50/249 (2021.01)
CPC H01M 50/284 (2021.01) [B60L 50/64 (2019.02); H01M 10/425 (2013.01); H01M 50/213 (2021.01); H01M 50/233 (2021.01); H01M 50/249 (2021.01); H01M 2010/4271 (2013.01); H01M 2220/20 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A battery pack, comprising:
a plurality of battery cells;
a battery management unit configured to manage charging and discharging of the plurality of battery cells and including at least two printed circuit boards electrically connected to each other and arranged such that surfaces of the at least two printed circuit boards face each other; and
an electrically insulating pack housing having an inner space in which the plurality of battery cells are accommodated and having a fixing unit being configured to fix the at least two printed circuit boards to each other,
wherein the battery management unit includes:
a first printed circuit board of the two printed circuit boards on the pack housing and having a plurality of first holes therein; and
a second printed circuit board of the two printed circuit boards spaced apart from the first printed circuit board by a predetermined distance and having a plurality of second holes therein,
wherein the fixing unit includes:
a plurality of fixing pillars each having a body configured to pass through a respective one of the first holes of the first printed circuit board and a respective one of the second holes of the second printed circuit board, each of the fixing pillars having a mounting groove at a longitudinal end of the body; and
a plurality of screws inserted and fastened into a respective one of the second holes and a respective one of the mounting grooves to fix the first printed circuit board and the second printed circuit board to a respective one of the fixing pillars, respectively.