Lithium battery box safety detection device

The utility model relates to a safety detection device for a lithium battery box, which comprises a shell, a circuit board detachably arranged in the shell and a pair tube fixing plate, the shell is provided with a smoke inlet grid, the pair tube fixing plate is provided with a light-emitting diode and a photosensitive diode which are used for detecting the smoke concentration, and the light-emitting diode and the photosensitive diode are connected with the circuit board; and the side wall of one side of the shell is provided with a jack connected with the circuit board. The lithium battery box can effectively solve the problems that the existing lithium battery box is not timely, ready and efficient in real-time monitoring, when the battery cell is in thermal runaway, the battery box is torn and even exploded due to the fact that the discharging time is not timely, battery combustion is aggravated, and finally the battery box is completely out of control. 本实用新型涉及一种锂电池箱安全探测装置，包括壳体，可拆卸设置在壳体内的线路板及对管固定板，壳体上开设有进烟