Low-noise and high-low-pressure pipeline assembly and method for manufacturing the same

Abstract

The invention discloses a low-noise and high-low-pressure pipeline assembly and method for manufacturing the same. The pipeline assembly comprises a high-pressure pipe and a low-pressure pipe, and further includes a heat preservation pipe and a cooling device, the two ends of the heat preservation pipe are respectively provided with a first positioning block and a second positioning block, the high-pressure pipe and the low-pressure pipe penetrate the first positioning block, the heat insulating pipe and the second positioning block, the heat insulating pipe is provided with a heat insulatingplate, the heat insulating plate divides the heat insulating pipe into a first cavity and a second cavity, the high-pressure pipe is connected in the first cavity through the first cushioning assembly, and the low-pressure pipe is connected in the second cavity through the second cushioning assembly. The method comprises the following steps of: processing a high-pressure pipe, processing a low-pressure pipe, installing an insulation pipe, installing a cooling device and testing the high-pressure and low-pressure pipelines. The invention can insulate the refrigerant in the high and low pressuretubes, reduce the influence of the temperature in the engine room on the high and low pressure tubes, reduce the heat exchange between the high and low pressure tubes, prevent the refrigerant in thehigh and low pressure tubes from being heated to reduce the efficiency of the expansion valve and the compressor, and affect the refrigeration efficiency of the air conditioner and the power consumption of the compressor.

Description

technical field [0001] The invention relates to a low-noise high-low pressure pipeline assembly and a manufacturing method thereof. Background technique [0002] With the continuous development of automobile technology, lightweight and low-energy-consumption air-conditioning systems have become the research focus of various OEMs and parts factories. An important direction of vehicle lightweight is to reduce the size of components while ensuring performance. The energy consumption of the air conditioning system basically comes from the compressor. Therefore, how to use the compressor with the smallest displacement to meet the cooling performance of the air conditioner is to reduce the energy consumption of the air conditioner. key technologies. [0003] At present, the high and low pressure pipeline assemblies used in automobile air conditioning systems generally adopt high pressure pipes and low pressure pipes arranged side by side. The high-pressure pipe is the high-press...

AI Technical Summary

Problems solved by technology

The temperature in the high-pressure pipe is high, and the working temperature is generally above 60°C; the temperature in the low-pressure pipe is low, and the working temperature is generally below 10°C, while the ambient temperature in the engine room is generally around 80°C, which makes the refrigerant in the high-low pressure pipe be absorbed by the engine room. Temperature heating causes the efficiency of the expansion valve and compressor to decrease, which affects the cooling efficiency of the air conditioner and the power consumption of the compressor

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