Battery pack liquid leakage detection device and method

The invention relates to a battery pack liquid leakage detection device and method. The battery pack liquid leakage detection device comprises a vacuum box, a mass spectrometer and a vacuum pump, the vacuum pump is connected with the vacuum box, the vacuum box is used for placing a battery pack, the battery pack is in sealed connection with the mass spectrometer through a first communicating pipe, the battery pack is further connected with a second communicating pipe, and a carrier gas valve is arranged on the second communicating pipe. The second communicating pipe is used for introducing carrier gas into the battery pack, and the mass spectrometer is used for detecting volatile substances in the battery pack. The battery pack liquid leakage detection device and method have the advantages of being high in accuracy, short in detection time and wide in application range. 本申请涉及一种电池包漏液检测装置和方法。本申请所述的电池包漏液检测装置，包括真空箱、质谱仪和真空泵，真空泵与真空箱连接，真空箱用于放置电池包，电池包通过第一连通管与质谱仪密封连接，电池包还与第二连通管连接，第二连通管上设有载气阀，第二连通管用于向电池包的内部通入载气，质谱仪用于检测