Patent ID: 11894583
Assignee: JIANGSU CONTEMPORARY AMPEREX TECHNOLOGY LIMITED
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 0:
1. A box body comprising:
a carrying plate;
a one-way gravity valve disposed at the carrying plate, wherein:
the one-way gravity valve is configured:
to be closed in response to a gravity of liquid in the box body being less than a threshold, and
to be open in response to the gravity of the liquid in the box body reaching the threshold; and

the one-way gravity valve comprises:
a liquid discharge member provided with a through hole and configured to discharge the liquid through the through hole in response to the gravity of the liquid in the box body reaching the threshold; and

a bottom plate arranged below and connected to the carrying plate;
wherein:
the carrying plate is configured to carry a battery comprising a battery cell, the battery cell comprising:
a housing body;
an electrode assembly disposed in the housing body; and
an end cover assembly comprising:
an end cover plate connected to the housing body to form a housing of the battery cell; and
an electrode terminal coupled to the electrode assembly;

the carrying plate is configured to be between a bottom of the housing body of the battery cell and the bottom plate; and
a water storage chamber communicating with the through hole is formed between the carrying plate and the bottom plate.