Air compressor of vehicle

The utility model relates to the technical field of new energy automobile machinery, and discloses a vehicle air compressor which comprises a compressor mounting frame, connecting frames are symmetrically arranged at the rear end of the compressor mounting frame, a mounting groove is formed in the compressor mounting frame, a compressor shell is inserted into the mounting groove, and the compressor shell is connected with the connecting frames. The air compressor comprises a compressor shell, an output pipe is arranged on the compressor shell, a mounting plate with an L-shaped section is fixed to the left side wall of the compressor shell, and a piston motor is fixed to the front end of the mounting plate. And a power supply supplies power to a transmission motor, so that a worker can conveniently dismount a plurality of working parts step by step, graded dismounting is realized, and the situation that hardware parts are lost in the dismounting process of a conventional fixing assembly is avoided as much as p