Patent ID: 11860064
Assignee: UNI-HELIUM TEST TECHNOLOGY (SHANGHAI) CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC G  H  Y | IPC G  H

Claim 10:
11. The method according to claim 10, wherein a product leakage rate of the battery pack is calculated by the following calculation formula:

Q=ΔC*Pt*V 

Q: the product leakage rate, in unit of mbar·1/s, or Pa·m3/s;
ΔC: the rate of change of the content of the tracer gas in the test cavity, in unit of %/s;
Pt: the pressure in the test cavity, in unit of Pa;
V: the net volume in the test cavity, in unit of m3;
if the product leakage rate is lower than a specified value, then it is determined that the sealing requirement of the battery pack is satisfied; and
if the product leakage rate is greater than the specified value, then it is determined that the sealing requirement of the battery pack is not satisfied.