Air volume reversing device for comprehensive performance test bed of air conditioning system

Abstract

The invention relates to an air volume reversing device for a comprehensive performance test bed of an air conditioning system, which comprises a shell internally provided with a first chamber, a second chamber and an air passage, the air inlet end of the air passage is communicated with the first chamber, and the air outlet end of the air passage is communicated with the second chamber; a first interface of the shell is used for externally connecting an air blowing fan, a second interface and a third interface are communicated with the second cavity, the second interface is used for externally connecting an air suction fan, and the third interface is used for externally connecting a test wind tunnel; a first port of a three-way pipe in the second cavity is connected with the position where the air outlet end is located, a second port is located in the second cavity, and a third port is connected with the position where the third connector is located; valves are arranged at the air inlet ends and the third ports, and the valves are used for opening or closing the corresponding air inlet ends or the third ports. The mode of the air volume reversing device is adjusted through the valve, switching is rapid and flexible, mode switching does not need to manually adjust the position of a draught fan or connection of an air channel, and testing time consumption and manual labor intensity can be reduced.

Description

technical field [0001] The invention belongs to the technical field of automobile testing, and in particular relates to an air volume reversing device for an air-conditioning system comprehensive performance test bench. Background technique [0002] Automobile air conditioning system is one of the major systems of automobiles. Its main function is to cool down or heat up the passenger compartment to ensure the comfort of the passenger compartment. The automotive air conditioning system is mainly composed of HVAC, condenser, compressor, air conditioning pipeline and other main components Composed of components, the HVAC is arranged at the lower part of the instrument panel, and the condenser is arranged at the front of the vehicle. When the automotive air-conditioning system is in the development stage, it is necessary to conduct a single performance test on the bench and a matching test at the system level. [0003] Automobile air-conditioning comprehensive performance test ...

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Problems solved by technology

[0004] In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is to provide an air volume reversing device for the comprehensive performance test bench of the air-conditioning system, so as to solve the problems of time-consuming and easy air leakage in the current automobile air-conditioning comprehensive performance test bench for switching the wind direction , achieve the effect of simple switching of wind direction and improvement of test accuracy

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