US 11,949,079 B2
Casing for battery pack and battery pack
Lei Wang, Ningde (CN); Linggang Zhou, Ningde (CN); Xingdi Chen, Ningde (CN); Peng Wang, Ningde (CN); and Derong Wang, Ningde (CN)
Assigned to Contemporary Amperex Technology Co., Limited, Ningde (CN)
Filed by Contemporary Amperex Technology Co., Limited, Ningde (CN)
Filed on Sep. 23, 2022, as Appl. No. 17/951,147.
Application 17/951,147 is a continuation of application No. 17/358,037, filed on Jun. 25, 2021, granted, now 11,495,861.
Application 17/358,037 is a continuation of application No. 16/427,934, filed on May 31, 2019, granted, now 11,101,519, issued on Aug. 24, 2021.
Claims priority of application No. 201811362042.4 (CN), filed on Nov. 15, 2018.
Prior Publication US 2023/0020361 A1, Jan. 19, 2023
Int. Cl. H01M 10/613 (2014.01); B60K 1/04 (2019.01); H01M 10/625 (2014.01); H01M 10/6554 (2014.01); H01M 10/6556 (2014.01); H01M 50/20 (2021.01); H01M 50/233 (2021.01); H01M 50/236 (2021.01); H01M 50/271 (2021.01)
CPC H01M 10/613 (2015.04) [B60K 1/04 (2013.01); H01M 10/625 (2015.04); H01M 10/6554 (2015.04); H01M 10/6556 (2015.04); H01M 50/20 (2021.01); H01M 50/233 (2021.01); H01M 50/236 (2021.01); H01M 50/271 (2021.01); H01M 2220/20 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A casing for a battery pack, wherein the casing has a receiving space and an opening in communication with the receiving space, the receiving space is formed by a wall portion of the casing, and the wall portion is formed from two or more stacked base plates, between which a plurality of cavities are formed,
wherein the base plates comprise a first base plate and a second base plate, and the plurality of cavities is formed by an outwardly projecting convex wall of the second base plate and a flat wall of the first base plate corresponding to the convex wall,
wherein a ratio of a height h to a width w of the plurality of cavities is in a range of h/W≤0.5,
wherein the cavities are formed between the first base plate and the second base plate by a blow molding process.