Automobile refrigerant flow noise testing device

The utility model relates to an automobile refrigerant flow noise testing device, which belongs to the field of automobile air conditioning system noise testing and comprises an enthalpy difference performance platform, and an acquisition and analysis system, a noise reduction system and a tested air conditioner which are arranged in the enthalpy difference performance platform. The enthalpy difference performance table comprises a first evaporation chamber, a second evaporation chamber and a condensation chamber which are arranged in a mutually isolated manner, and a refrigerating/heating system and a controller thereof which are arranged on the outer side of the first evaporation chamber, the second evaporation chamber or the condensation chamber. The controller controls the refrigerating/heating system to provide environment temperature and humidity for the first evaporation chamber, the second evaporation chamber and the condensation chamber, so that environment bottom noise is guaranteed to be small duri