Central air conditioner centralized controller

The utility model discloses a centralized controller of a central air conditioner. The centralized controller comprises a centralized controller body, a PCB main board is arranged in the centralized controller body. The rear end surface of the centralized controller body is fixedly connected with a mounting sleeve; rectangular arrangement, a VGA interface is arranged in the mounting sleeve; the VGA interface is electrically connected with a PCB main board in the centralized controller body; insertion columns are fixedly connected to the positions, close to the four corners, of the interior ofthe installation sleeve, two limiting blocks are arranged at one end of each insertion column, installation grooves are formed in the two sides of one end of each insertion column, a sliding rod is connected between the two ends of the interior of each installation groove, and the surface of each sliding rod is slidably sleeved with a sliding block and a first spring. According to the utility model, the centralized contro