Structure for preventing noise and improving heat exchange performance in automotive air-conditioning heating power expansion valve

A thermal expansion valve, automotive air conditioning technology, applied in the direction of noise suppression, lighting and heating equipment, fluid circulation arrangement, etc.

Inactive Publication Date: 2011-06-22
上海星易汽车空调股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] like figure 1 As shown, the traditional automotive air-conditioning thermal expansion valve 1 has the function of throttling and reducing pressure, but due to structural limitations, the function of throttling and reducing pressure is limited, which affects the performance of the entire air-conditioning system.
And because the gas and liquid impact the expansion valve chamber, it will cause resonance and generate large noise

Method used

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  • Structure for preventing noise and improving heat exchange performance in automotive air-conditioning heating power expansion valve
  • Structure for preventing noise and improving heat exchange performance in automotive air-conditioning heating power expansion valve
  • Structure for preventing noise and improving heat exchange performance in automotive air-conditioning heating power expansion valve

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Embodiment

[0013] Such as Figure 2 to Figure 4 As shown, the present invention provides a structure for preventing noise and improving heat transfer performance of an automobile air-conditioning thermal expansion valve. A small-hole valve plate 2 is added at the expansion valve body 1 to the inlet of the evaporator, and the small-hole valve plate 2 and the expansion valve body 1 snug fit. The number of through holes in the small hole valve plate 2 is 1-100, and the diameter of the through holes is 0.1mm-10mm.

[0014] The addition of the small-hole valve plate 2 is based on the existing mature technology, and the original state of the product is kept as far as possible to reduce technical risks, so that the mixed gas-liquid passes through the through hole of the small-hole valve plate 2 in the expansion valve to reduce noise and silence , and the evaporation times are increased in the expansion valve body 1, and the evaporation area of ​​the evaporator is enlarged to improve the perfor...

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PUM

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Abstract

The invention provides a structure for preventing noise and improving heat exchange performance in an automotive air-conditioning heating power expansion valve, which comprises an expansion valve body. The structure is characterized in that: a micropore valve sheet is arranged from the expansion valve body to an evaporator inlet, and is in close fit with the expansion valve body. In the structure, the micropore valve sheet is arranged from the expansion valve body to the evaporator inlet additionally, mixed gas liquid is subjected to porous flow split, which is similar to the function of a silencer, so the effect of noise reduction is achieved. In addition, the evaporation time is increased in the expansion valve, and the evaporation area of an evaporator is enlarged relatively to improve the refrigerating performance of the whole air conditioner.

Description

technical field [0001] The invention relates to a structure for preventing noise and improving heat exchange performance of a thermal expansion valve of an automobile air conditioner, which can be used to improve the phenomenon of noise generated during the use of an automobile air conditioner and improve its heat exchange performance, and belongs to the technical field of thermal expansion valve structures of an automobile air conditioner. Background technique [0002] Such as figure 1 As shown, the traditional thermal expansion valve 1 of the automobile air conditioner has the function of throttling and reducing pressure, but due to structural limitations, the function of throttling and reducing pressure is limited, which affects the performance of the entire air conditioning system. And because the gas and liquid impact the expansion valve chamber, it will cause resonance and generate large noise. Contents of the invention [0003] The purpose of the present invention ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B41/06F24F13/24
Inventor 龚家骐
Owner 上海星易汽车空调股份有限公司
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