Patent ID: 11923556
Assignee: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A battery pack, comprising:
a case (1), comprising an accommodating cavity (11) and drain holes (12) in communication with the accommodating cavity (11);
a battery module (2) contained inside the accommodating cavity (11), the battery module (2) being fixed onto an inner wall of the case (1) by binder; the battery module (2) comprises a battery cell assembly (21) and a cooling system (22); the battery cell assembly (21) comprises a plurality of battery cells (210) arranged side by side; the plurality of battery cells (210) are electrically connected to each other; the cooling system (22) abuts against the plurality of battery cells (210); the cooling system (22) comprises a cooling plate (221) and two connecting pipes (222), the two connecting pipes (222) are respectively located on both sides of the battery module (2) in a length direction; the drain holes (12) are provided in one or more rows below a connection position of each of the two connecting pipes (222) and the cooling plate (221); and
a blocking member (3), mounted to the case (1) and located between the drain holes (12) and the battery module (2) on a lateral plane to block the binder for fixing the battery module (2) from entering the drain holes (12),
wherein the blocking member (3) is provided adjacent to an end of the battery module (2) in the length direction, the drain holes (12) being positioned to the side of the blocking member (3) away from the battery module (2) in the length direction,
wherein a reservoir cavity (10) is provided below the battery module (2) to store a liquid, such that the reservoir cavity (10) is in communication with the drain holes (12), and
wherein for each of the drain holes (12) a dimension at one end of the drain hole (12) in communication with the accommodating cavity (11) is greater than a dimension at other end of the drain hole (12) in communication with the reservoir cavity (10).