A BMS SLAVE BOARD, A BMS MASTER BOARD, A BATTERY PACK AND A METHOD FOR CONTROLLING A TEMPERATURE AND HUMIDITY THEREIN

A BMS slave board, a BMS master board, a battery pack and a method for controlling a temperature and humidity therein are disclosed. The BMS slave board comprises: a first temperature and humidity sensing unit for collecting and storing a temperature and humidity of a predetermined area within a battery pack housing; and a battery sampling chip communicatively coupled with the first temperature and humidity sensing unit and used to acquire the temperature and humidity by accessing the first temperature and humidity sensing unit, wherein the first temperature and humidity sensing unit and the battery sampling chip are installed on a same circuit board, and a power input end of the first temperature and humidity sensing unit is connected to a power output end of a battery module. In the embodiment of the present disclosure, the power input end of the first temperature and humidity sensing unit is connected to the power output end of the battery module, so that the temperature and humidity can be continuously monitored without being affected by the factor of entire vehicle stopping and powering down, thereby solving the problem in the prior art that the humidity inside the battery pack cannot be monitored after the entire vehicle is powered down.