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Vibration-damping and noise-eliminating thermal expansion valve

A thermal expansion valve and noise reduction technology, which is applied in the field of thermal expansion valves, can solve problems such as noise and system vibration, and achieve the effects of avoiding interference, overcoming system vibration and noise, and eliminating resonance vibration and noise

Active Publication Date: 2014-07-09
NINGBO SONGYING AUTOMOBILE PARTS
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the prior art has the problems and deficiencies of system vibration and noise caused by resonance

Method used

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  • Vibration-damping and noise-eliminating thermal expansion valve
  • Vibration-damping and noise-eliminating thermal expansion valve
  • Vibration-damping and noise-eliminating thermal expansion valve

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Embodiment Construction

[0026] refer to Figure 1 ~ Figure 3 , a thermal expansion valve for vibration reduction and noise reduction of the present invention, comprising a valve body 1, a power head 2, a mandrel sleeve 3, a mandrel 4, a ball valve core 5, a valve core holder 51, a damping clip 6, and a spring 7 , adjusting nut 8, the first O-ring 9, the second O-ring 91, the third O-ring 92, wherein: the valve body 1 is an aluminum alloy rectangular cylindrical shell, and the valve body 1 is provided with Fluid channel and mechanism connection channel formed by air inlet 11, air outlet 12, air channel 13, liquid inlet 14, liquid outlet 15, spool hole 16, valve stem hole, power head interface, wherein, the outlet The air port 12 and the air inlet 11 are coaxial circular stepped counterbores located on the left and right sides of the valve body 1 respectively, and the passage connecting the air outlet 12 and the air inlet 11 is called the air channel 13; The liquid outlet 15 is a circular stepped coun...

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Abstract

The invention discloses a vibration-damping and noise-eliminating thermal expansion valve, which comprises a valve body (1), a power head (2), a push rod sleeve (3), a push rod (4), a steel ball valve core (5), a valve core holder (51), a damping clamp (6), a spring (7), an adjustment nut (8), and an O-shaped ring. According to the invention, the nylon push rod sleeve is arranged on the position where the push rod vertically penetrates through an air passage of the valve body; a refrigerant flow separating the air passage affects an aperture of the steel ball valve core by generating radial vibration to the push rod; and the damping clamp which is connected with the valve core holder and is elastically connected with the wall of a valve core hole is arranged in the valve core hole of the valve body, so that the aperture response motion of the steel ball valve core is lagged by friction damping between the damping clamp and the valve core hole, a flow adjustment response frequency of the thermal expansion valve is staggered with a peak phase of a vibration field frequency of an automobile, a sympathetic vibration technical scheme is avoided, and the sympathetic vibration and noise of an automotive air conditioning system during running can be eliminated.

Description

technical field [0001] The invention relates to a thermal expansion valve of a refrigeration system, in particular to a vibration-reducing and noise-reducing thermal expansion valve used in an automobile air-conditioning system to automatically adjust refrigerant flow. Background technique [0002] The abnormal vibration and noise of vehicle air-conditioning system has been plagued by the entire air-conditioning industry, and it is one of the most common complaints from customers. Since the automobile air conditioning system works in the complex vibration field of the automobile, such as the vibration of the engine, the vibration field of the automobile and the flow adjustment response vibration of the thermal expansion valve of the automobile air conditioning system form a resonance, that is, the so-called resonance, which leads to the vibration of the entire automobile air conditioning system. Severe resonance vibration and noise occur during operation. [0003] The prior...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25B41/06
Inventor 俞其昌严雅灯陈建兵施孝哉葛先梦
Owner NINGBO SONGYING AUTOMOBILE PARTS
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