Linear speed regulation module of automobile air conditioner

The utility model discloses a linear speed regulation module of an automobile air conditioner, which belongs to the technical field of speed regulation of the automobile air conditioner and comprises a radiator, a speed regulation module shell is mounted at the top of the radiator, a PCB (printed circuit board) is placed on the radiator, mounting holes are arranged on the PCB, a plurality of positioning columns are arranged at the top of the radiator, and the speed regulation module shell is mounted on the speed regulation module shell. And an insertion hole is formed in the top surface of the positioning column. According to the utility model, through cooperative use of the positioning columns, the jacks, the extrusion fixing columns and the insertion columns, when the PCB is installed, the PCB is directly placed on the radiator, so that the positioning columns are inserted into the installation holes in the PCB; when the radiator and the speed regulation module shell are installed, the extrusion fixing colu