US 12,206,138 B2
Bus member, battery and power consumption device
Xuehui Wang, Ningde (CN); Lu Hu, Ningde (CN); and Xiaobo Chen, Ningde (CN)
Assigned to CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED, Hong Kong (CN)
Filed by CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED, Hong Kong (CN)
Filed on Dec. 22, 2021, as Appl. No. 17/559,581.
Application 17/559,581 is a continuation of application No. PCT/CN2021/084736, filed on Mar. 31, 2021.
Prior Publication US 2022/0328945 A1, Oct. 13, 2022
Int. Cl. H01M 50/583 (2021.01); H01M 50/505 (2021.01); H02J 7/00 (2006.01)
CPC H01M 50/583 (2021.01) [H01M 50/505 (2021.01); H02J 7/00304 (2020.01); H01M 2220/20 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A bus member, comprising:
a first connection portion configured to be connected to a first electrode terminal of a first battery cell;
a second connection portion configured to be connected to a second electrode terminal of a second battery cell;
a plurality of fusing portions, one end of each fusing portion being connected to the first connection portion, and the other end of each fusing portion being connected to the second connection portion;
wherein an overcurrent cross-sectional area corresponding to one of the plurality of fusing portions with a maximum overcurrent cross-sectional area is expressed as Smax, and an overcurrent cross-sectional area corresponding to one of the plurality of fusing portions with a minimum overcurrent cross-sectional area is expressed as Smin, and Smin and Smax satisfy the following relational expression:
0.3≤Smin/Smax≤1;
wherein there are at least three fusing portions; and
the at least three fusing portions are arranged side by side in a width direction of the bus member, and the overcurrent cross-sectional areas of the at least three fusing portions are sequentially reduced from two sides to a middle of the bus member in the width direction.