Patent ID: 11949079
Assignee: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  B  Y | IPC B  H

Claim 0:
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.