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Damping structure of automobile expansion valve

A shock-absorbing damping and expansion valve technology, which is applied in the field of automobile expansion valves to achieve good stability, stable opening and closing mechanism, and noise reduction

Pending Publication Date: 2020-12-25
CHONGQING SONGZ AUTOMOBILE AIR CONDITIONING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a shock-absorbing and damping structure of an automobile expansion valve, which is used to solve the technical problem of whistling sound during the use of the automobile expansion valve

Method used

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  • Damping structure of automobile expansion valve
  • Damping structure of automobile expansion valve
  • Damping structure of automobile expansion valve

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Such as Figure 1 to Figure 3 As shown, a shock-absorbing and damping structure of an automobile expansion valve includes a valve seat 1, a medium passage and an opening and closing mechanism, the inlet of the medium passage is connected to a compressor; the opening and closing mechanism includes a valve stem 2, and a ball 3 is connected to the lower end of the valve stem 2, and There is a chamber 6 below 3, and a spring 5 is arranged in the chamber 6, and the ball 3 is arranged in the medium channel; under the action of the driving force, when the valve stem 2 moves to drive the ball 3 to move downward to press the spring 5, The medium channel is opened to allow the medium to flow through; when the driving force is withdrawn, the spring 5 drives the ball 3 and the valve stem 2 to reset to close the medium channel; a damping part 7 is arranged on the periphery of the spring 5, and the damping part 7 is against the side of the chamber 6 wall. Among them, the media chann...

Embodiment 2

[0030] An automobile expansion valve shock-absorbing damping structure, referring to Embodiment 1, its main difference from Embodiment 1 is that the bottom end of the damping clip is fixed on the elastic element, that is, the base 9 is set as an axially expandable elastic element, With such a structure, during the downward movement of the ball 3, the damping clip and the elastic element will move downward synchronously, and the spring 5 will move downward under pressure.

Embodiment 3

[0032] A kind of automobile expansion valve shock-absorbing damping structure, refer to embodiment 1 and combine Figure 4 As shown, the main difference between it and Embodiment 1 is that no convex portion 75 is provided on the hem 73 of the damping clip.

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Abstract

The invention provides a damping structure of an automobile expansion valve. The damping structure comprises a valve seat, a medium channel and an opening and closing mechanism; an inlet of the mediumchannel is connected with a compressor; the opening and closing mechanism comprises a valve rod; the lower end of the valve rod is connected with a ball; a cavity is formed below the ball; a spring is arranged in the cavity; the ball is arranged in the medium channel. Under the action of driving force, after the valve rod acts to drive the ball to move downwards to press the spring, the medium channel is opened to allow a medium to flow through; after the driving force is removed, the spring drives the ball and the valve rod to reset to close the medium channel; and a damping part is arrangedon the periphery of the spring and abuts against the side wall of the cavity. The technical problem that the automobile expansion valve has squeal in the use process is solved through the simple andingenious structure, the squeal does not exist at all in the use process by the adoption of the structure, and other noise is greatly reduced.

Description

technical field [0001] The invention relates to an automobile expansion valve, in particular to a shock-absorbing and damping structure of an automobile expansion valve. Background technique [0002] The existing common automobile expansion valve includes a valve seat and an opening and closing mechanism, the opening and closing mechanism includes a valve stem, the end of the valve stem is connected with a sphere, the sphere is arranged in the medium channel, and the sphere is connected with a spring. Under the action of the driving force, when the valve stem drives the ball to move down and the spring is compressed, the medium channel (cold medium flows in the medium channel, and the cold medium flows from the high-pressure side to the low-pressure side) opens to realize the passage of the medium; when the driving force After canceling, the spring drives the ball and the valve stem to reset to close the medium channel. However, this type of automobile expansion valve will ...

Claims

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Application Information

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IPC IPC(8): F16K1/14F16K1/32F16K47/02F16F15/02F16F15/067
CPCF16F15/022F16F15/067F16K1/14F16K1/32F16K47/02
Inventor 朱科
Owner CHONGQING SONGZ AUTOMOBILE AIR CONDITIONING CO LTD
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