Extensible module power supply device and application thereof

The invention discloses an extensible module power supply device and application thereof.The extensible module power supply device comprises a base, a mounting box is fixedly mounted at the bottom of the inner wall of the base, a cover plate is movably mounted at the top of the mounting box, a power supply body is arranged in the mounting box, and buffer mechanisms are arranged at the four corners of the inner wall of the mounting box; and a cooling device is arranged between every two buffering mechanisms. The power source body makes contact with the rolling shaft, the power source body is conveniently placed in the mounting box, meanwhile, the positioning air bag can provide buffering for the power source body and the movable block, meanwhile, the second magnetic block and the first magnetic block are opposite in the same pole, the first magnetic block conveniently pushes the movable block to move outwards, and therefore the power source body is fixed; and when the power supply body is vibrated, the power s