Silencer and vehicle-mounted air conditioner silencing system

Abstract

The invention relates to a silencer and a vehicle-mounted air conditioner silencing system, in the using process, fluid is introduced into an input pipe, such as a refrigerant in a vehicle-mounted airconditioner. The introduced fluid flows into a first insertion pipe from the input pipe, and then flows into a silencing cavity through the first insertion pipe. Due to the fact that the first insertion pipe is located in the silencing cavity, the cross section between the first insertion pipe and the silencing cavity changes suddenly to cause acoustic impedance changes, and an expansion type silencing structure is formed. Then, the fluid flowing into the silencing cavity sequentially flows through all split cavities through flow guide holes in partition plates; and finally, the fluid flows into an output pipe from the last split cavity and flows out of the output pipe. Due to the fact that silencing holes are formed in the partition plates, the silencing holes and the split cavities in the two sides of the silencing holes form a resonance type sound absorption structure, and noise in the silencing cavity is further weakened. Meanwhile, the silencer has the advantages of being simplein structure, low in manufacturing cost, convenient to use and the like, and large-scale application and popularization of the silencer are facilitated.

Description

technical field [0001] The invention relates to the technical field of automobile construction, in particular to a muffler and a vehicle-mounted air-conditioning muffler system. Background technique [0002] As people's requirements for car driving comfort are getting higher and higher, car air conditioners are used more and more frequently, and their operating noise has been criticized by users. When the car is running at a low speed on a flat road, the contribution of the air conditioning system to the noise inside the car is the main part. The traditional noise reduction method for the vehicle air conditioning system usually adds a muffler to the air conditioning pipeline to reduce the amount of noise inside the vehicle. However, the traditional muffler is limited by its own structural characteristics. Either the noise reduction effect is poor, or the structure is complex and the production cost is high. It cannot be widely used in vehicle air-conditioning systems, which...

AI Technical Summary

Problems solved by technology

However, the traditional muffler is limited by its own structural characteristics. Either the noise reduction effect is poor, or the structure is com...

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