Switch cabinet with built-in diversion and heat dissipation structure for electrical engineering

The utility model discloses a switch cabinet with a built-in diversion heat dissipation structure for electrical engineering. The switch cabinet comprises a switch cabinet main body, a heat exchanger main body and a humidity sensor. A fan box is installed on the rear wall of the switch cabinet body in a penetrating mode, a fan is installed in the fan box, a bearing plate is installed on the back face of the switch cabinet body, a flow guide pipe is installed on the back face of the fan box, and first heat dissipation grooves which are arranged at equal intervals up and down are formed in the rear wall of the switch cabinet body in a penetrating mode. A humidity sensor is installed on the inner wall of one side of the switch cabinet body. According to the utility model, the heat exchanger main body, the bearing plate, the fan box, the flow guide pipe and the first heat dissipation groove are installed, the fan is started, then heat in the switch cabinet is extracted out, in the extraction process, part of the