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 11:
12. A battery pack leakage detection method using the battery pack leakage detection system as claimed in claim 1, comprising the following steps:
step 1: placing the battery pack into a test cavity and connecting a gas filling device with a gas filling hole of the battery pack through a gas filling pipe;
step 2: filling a tracer gas into an interior of the battery pack;
step 3: after the battery pack is filled with the tracer gas, stirring the air in the test cavity to accelerate the leaked tracer gas that leaks out from the battery pack to mix with the air in the test cavity such that the leaked tracer gas is uniformly distributed in the test cavity; and
step 4: after a specified time period for testing is reached, sampling the mixed gas in the test cavity and analyzing the sampled gas to obtain the content of the leaked tracer gas in the test cavity, so as to determine whether the sealing requirement of the battery pack is satisfied or not according to the content of the leaked tracer gas in the test cavity.