Automobile heating and ventilation noise and air volume test equipment and test method

The invention discloses an automobile heating and ventilation noise and air volume test device and test method, the device is configured to perform noise and air volume test on a heating and ventilation box, the device comprises a box body, one end of the box body is provided with an air inlet, the other opposite end of the box body is provided with an air outlet, the air outlet is configured to be communicated with the heating and ventilation box to be tested, and the box body is internally provided with a pore plate; the pore plate is arranged between the air inlet and the air outlet, the periphery of the pore plate is connected with the inner wall of the box body, and a plurality of through holes are formed in the pore plate; one end of the air pipe is connected with the air inlet of the box body, and the other end is connected with the air outlet of the air supply device; each air volume measuring assembly comprises a pitot tube and an air volume meter, and the pitot tubes extend into different preset pos