Control box

The control box comprises a shell, the shell comprises an upper cover and a base, and the upper cover and the base are detachably coupled; the base comprises a bottom face, and at least one pair of open holes are formed in the bottom face. A circuit board and a battery are installed in the shell, the circuit board is electrically connected with the battery, one side, facing the bottom surface, of the circuit board is provided with at least one pair of conductive parts, the number of the conductive parts is the same as that of the open holes, and the conductive parts are installed at the open holes; each pair of conductive pieces comprises a positive electrode and a negative electrode; the control box is provided with the open hole, the power supply terminal is installed in the open hole, the control box can be connected with a circuit board and a power supply in the control box through the power supply terminal, and the power supply terminal is a magnetic conductive element and can attract a conductive column