Heat dissipation device of hybrid electric vehicle

The heat dissipation device of the hybrid electric vehicle comprises a battery pack, a cooling fan is installed on the battery pack, an air inlet box is fixedly connected to an air inlet pipe of the cooling fan, a filter screen is fixedly connected to the joint of the air inlet pipe and the air inlet box, and an installation plate is fixedly connected to the bottom end of the air inlet box; the heat dissipation device further comprises a sweeping assembly, the sweeping assembly comprises a threaded sleeve which is arranged on the air inlet box and rotationally connected with the air inlet box, the threaded sleeve is in threaded connection with a reciprocating lead screw and rotationally connected with a supporting plate fixedly connected with the mounting plate, and the end, away from the threaded sleeve, of the reciprocating lead screw is fixedly connected with a moving plate. Relates to the technical field of hybrid electric vehicles, and solves the problems that an original filter screen is easy to block,