US 12,431,526 B2
Core for assembling cross member of battery case and core mounting jig
Sung Man Sohn, Yangsan-si (KR); and Youngrock Song, Busan (KR)
Assigned to SUNGWOO HITECH CO., LTD., Busan (KR)
Filed by SUNGWOO HITECH CO., LTD., Busan (KR)
Filed on Jul. 20, 2022, as Appl. No. 17/813,673.
Claims priority of application No. 10-2022-0002597 (KR), filed on Jan. 7, 2022.
Prior Publication US 2023/0223632 A1, Jul. 13, 2023
Int. Cl. H01M 10/04 (2006.01); B23K 37/04 (2006.01); B60K 1/04 (2019.01); B60L 50/64 (2019.01); H01M 50/204 (2021.01); H01M 50/244 (2021.01); H01M 50/249 (2021.01); H01M 50/264 (2021.01)
CPC H01M 10/0404 (2013.01) [B23K 37/0443 (2013.01); B60L 50/64 (2019.02); H01M 50/204 (2021.01); H01M 50/244 (2021.01); H01M 50/264 (2021.01); H01M 50/249 (2021.01)] 19 Claims
OG exemplary drawing
 
1. A core for assembling a cross member of a battery case insertable into a closed section in a longitudinal direction of the cross member to laser-weld at least one part to be assembled to the cross member of the battery case with the closed section, comprising:
a first core block including a first slip surface formed at one side in a width direction to be inclined in a direction toward another side;
a second core block including a second slip surface formed to be inclined at the one side in the width direction to slip on the first slip surface in an upper and lower direction;
a plurality of first magnet members installed on one surface of the first core block; and
a plurality of second magnet members installed on one surface of the second core block facing the one surface of the first core block.