Control box and air conditioning system

The invention discloses a control box and an air conditioning system. The control box comprises a main control board and a gear selection module; the input end of the main control board is connected to a power grid, and the output end of the main control board is connected to at least one electric device; and the gear selection module is connected to the main control board, the gear selection module receives the gear selection instruction and sends the gear selection instruction signal to the main control board, and the main control board controls the on-off of the electric power of the electric device according to the gear selection instruction signal. According to the control box, the judgment threshold value of the control box can be adjusted according to different use conditions, the application range is wide, and the different use requirements can be met. 本发明公开了种控制盒和空调系统，其中，所述控制盒包括：主控板，所述主控板的输入端连接于电网，输出端连接于至少用电设备；档位选择模块，所述档位选择模块连接于所述主控板，所述档位选择模块接收档位选择指令，并将该档位选择指令信号发送至主控板，所述主控板根据所述档位选择指令信号控制电设备电力的通断。本发明的控