Liquid leakage detector

The invention discloses a liquid leakage detector, a control part is a function control center of the liquid leakage detector, a detection cavity module is used for placing a to-be-detected battery, and the opening and closing of the detection cavity module are controlled by the control part; the air exhaust assembly is connected to the detection cavity module in a paired mode, and opening and closing of the air exhaust assembly are controlled by the control part. The gas extraction assembly extracts gas from the detection cavity module and transmits the gas to the gas detection element; a detection signal of the gas detection element is transmitted to the control part; according to the liquid leakage detector, the gas detection element is used for detecting whether electrolyte leakage exists or not, the speed is high, and the detection rate is high; in the process that the driving piece drives the moving assembly to do reciprocating translation, the pressing piece is opened and closedby the fixed arm, so tha