Automobile air conditioner air blower load test board and test method

Abstract

The invention provides an automobile air conditioner air blower load test board and test method. The test board comprises a base, a load control hood, a load adjustment device, a rotation speed sensing and display device and a load sensing and display device. The load adjustment device is installed on the base, the load control hood is installed on the load adjustment device, the hood opening of the load control hood is coated above an air inlet of an air blower, the rotation speed sensing and display device stretches into the load control hood, and the load sensing and display device is connected with the air blower. The method comprises the steps that (1), the air blower is installed on the base, and the hood opening of the load control hood is located above the air inlet of the air blower; (2), the rotation speed is observed through the rotation speed sensing and display device, and the rotation speed of the air blower is made to reach the rotation speed in the operation working condition; (3), the load current measured by the load sensing and display device is read, and the measured value is made to be equal to the actual load current value; (4), the air blower is subjected toperformance test. The automobile air conditioner air blower load test board has the advantages of being simple in structure, convenient to operate, capable of simulating the normal working condition of the air blower and capable of improving the precision of the test result.

Description

Technical field [0001] The present invention mainly relates to the testing technology of automobile air-conditioning blower, in particular to a load test bench and test method of automobile air-conditioning blower. Background technique [0002] With the continuous improvement of people's requirements for car ride comfort, automobile OEMs have higher and higher requirements for the performance of this component of the air conditioning system and the level of vibration and noise. As the core component of the air-conditioning system, the blower's air volume and the level of vibration and noise will have an important impact on the performance and noise level of the entire automobile air-conditioning system. Therefore, manufacturers of automotive air-conditioning blowers basically need to test the performance and vibration and noise of their products. At present, when various manufacturers use the developed test bench for performance testing or vibration and noise testing, the operat...

AI Technical Summary

Problems solved by technology

However, after the blower is installed in the air conditioning system, due to the limitation of the size of the air inlet, there is often a certain negative pressure in the air intake pressure, so the actual performance and vibration noise of the blower are different from the test results in the no-load state

Images