CN202501679U - Fix structure for expansion valve - Google Patents
Fix structure for expansion valve Download PDFInfo
- Publication number
- CN202501679U CN202501679U CN2012200235450U CN201220023545U CN202501679U CN 202501679 U CN202501679 U CN 202501679U CN 2012200235450 U CN2012200235450 U CN 2012200235450U CN 201220023545 U CN201220023545 U CN 201220023545U CN 202501679 U CN202501679 U CN 202501679U
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- China
- Prior art keywords
- sealing strip
- expansion valve
- installation cavity
- utility
- model
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Abstract
The utility model discloses a fix structure for an expansion valve. The fix structure for an expansion valve comprises an installation cavity arranged on a housing for allowing the expansion valve to be embedded in the installation cavity and a sealing strip arranged between the expansion valve and the installation cavity. The sealing strip has an annular structure with a via hole, wherein the via hole has a rounded rectangle structure and the cross section of the sealing strip is pear-shaped. The structure of the sealing strip is simple and easy to process. Central holes adopt the rounded rectangle structure and the thickness of the ring wall of the whole sealing strip gradually increases toward a major diameter end so that the support strength of the major diameter end is effectively ensured and the spread of vibration is effectively reduced. In addition, two original sealing strips are replaced by one sealing strip, and thus assembling efficiency is improved and the individual sealing strip is stable in structure.
Description
Technical field
The utility model relates to a kind of fixed structure of expansion valve, relates in particular to a kind of gasket structure of expansion valve.
Background technology
At present; Employed heating power expansion valve on the auto air-con; It includes valve body; Valve body is provided with first intake channel that is used to import high pressure liquid refrigerant, first exit passageway of deriving low pressure refrigerant, and imports second intake channel of low pressure refrigerant gas, second exit passageway of deriving low pressure refrigerant gas, and first intake channel is communicated with the condensator outlet of air-conditioning refrigeration plant; First exit passageway is communicated with the evaporator of air-conditioning refrigeration plant, is used to derive the cold-producing medium after the throttling step-down; Be provided with valve chamber in the valve body, said valve chamber be communicated with first intake channel and the lower end in the bottom surface of said valve body opening, offer valve opening in the valve chamber, be arranged on said valve opening inlet valve seat on through contact or separate the valve hole part that opens and closes said valve opening; Be arranged on helical spring in the valve chamber to valve hole part towards the valve opening direction application of force; Because importing first intake channel of high pressure liquid refrigerant directly is communicated with valve chamber; Therefore when the liquid refrigerant that needs throttling of high pressure during from the top inflow of dwang; Cause the transmission vibration of bar easily and produce noise, closely influence the performance of whole air-conditioning system.And because gas-liquid is impacted the expansion valve pocket, can strike a chord produces big noise.
Be abating noises, prevent that in-engine different sound from passing in the driver's cabin, in the described expansion valve outside and lock chamber, be provided with around the perforation sealing strip of expansion valve valve body with described perforation sealing strip and contain the sealing strip on every side in it.Fig. 1 is the gasket structure sketch map on every side of prior art.As shown in Figure 1, described sealing strip on every side is the sealing ring that cross section resembles a pear in shape, and described sealing ring is that uniform thickness is provided with the closed annular structure; And side direction is formed with the sealing strip setting of 1, two different size of a fin and the side face gasket structure of abnormity projecting inwardly within it, causes the increase of cost and labour cost; And; Since around sealing strip enlarged diameter section wall thickness not enough, support strength is not enough, make to connect sealing strip and directly misplaces easily with sealing strip on every side; Cause soundproof effect to weaken, influence product quality.
Summary of the invention
The technical problem that the utility model will solve provides a kind of simple in structure, can effectively expansion valve be surrounded and subdue the gasket structure of different sound.
For solving the problems of the technologies described above, the technical scheme that the utility model adopted is:
A kind of fixed structure of expansion valve; Comprising being arranged on to allow expansion valve to be embedded the chamber being set and being arranged on expansion valve and the sealing strip between the chamber is set in it on the housing; The cross section of described sealing strip is pear shape, and it is the circulus of round rectangle structure for through hole.
Preferably, described sealing strip adopts polyurethane to process.
The gasket structure of the utility model, simple in structure easy to process, centre bore adopts the round rectangle structure; Whole sealing strip ring wall is thick progressively to be increased to larger diameter end, can effectively guarantee the support strength of larger diameter end, effectively subdues the propagation of vibrations; And two original sealing strips are replaced with one; Efficiency of assembling is improved, and single gasket structure, and steadiness is strong.
Description of drawings
Fig. 1 is the gasket structure sketch map on every side of prior art;
Fig. 2 is the gasket structure sketch map of the utility model;
Fig. 3 is the gasket structure side view of the utility model;
Fig. 4 is that the sealing strip of the utility model is installed the attitude structural representation.
The specific embodiment
In order to make those skilled in the art person understand the utility model scheme better, the utility model is done further to specify below in conjunction with accompanying drawing and embodiment.
Shown in Fig. 2-4, the expansion valve of the utility model is arranged on and is provided with in the chamber 20, and the vibrating noise that produces for the expansion valve that disappears transmits in cockpit, at described expansion valve 10 and 20 in chamber is set is provided with sealing strip 30.
Described sealing strip 30 tightly is set on all bodies of expansion valve 10; Its circulus that the cross section that is provided with in the chamber is pear shape that snaps in for mating; Its through hole 31 is the round rectangle structure, and the through hole of described round rectangle can tightly be enclosed within on all bodies of expansion valve, and the outside can with the chamber wall is set to holding; Be sealing strip inside and outside both sides respectively with the expansion valve body with chamber close contact mutually is set, can effectively eliminate noise that expansion valve produces to external diffusion.
Wherein, described sealing strip adopts polyurethane to process.
The gasket structure of the utility model, simple in structure easy to process, centre bore adopts the round rectangle structure; Whole sealing strip ring wall is thick progressively to be increased to larger diameter end, can effectively guarantee the support strength of larger diameter end, effectively subdues the propagation of vibrations; And two original sealing strips are replaced with one; Efficiency of assembling is improved, and single gasket structure, and steadiness is strong.
By the above only is the preferred implementation of the utility model; Should be understood that; For those skilled in the art; Under the prerequisite that does not break away from the utility model principle, can also make some improvement and retouching, these improvement and retouching also should be regarded as the protection domain of the utility model.
Claims (2)
1. the fixed structure of an expansion valve; Comprising being arranged on to allow expansion valve to be embedded the chamber being set and being arranged on expansion valve and the sealing strip between the chamber is set in it on the housing; It is characterized in that: the cross section of described sealing strip is pear shape, and it is the circulus that through hole (31) is the round rectangle structure.
2. fixed structure as claimed in claim 1 is characterized in that: described sealing strip adopts polyurethane to process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200235450U CN202501679U (en) | 2012-01-18 | 2012-01-18 | Fix structure for expansion valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200235450U CN202501679U (en) | 2012-01-18 | 2012-01-18 | Fix structure for expansion valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202501679U true CN202501679U (en) | 2012-10-24 |
Family
ID=47038291
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200235450U Expired - Fee Related CN202501679U (en) | 2012-01-18 | 2012-01-18 | Fix structure for expansion valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202501679U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107388555A (en) * | 2017-08-14 | 2017-11-24 | 安徽江淮汽车集团股份有限公司 | Air conditioning for automobiles sealing structure |
-
2012
- 2012-01-18 CN CN2012200235450U patent/CN202501679U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107388555A (en) * | 2017-08-14 | 2017-11-24 | 安徽江淮汽车集团股份有限公司 | Air conditioning for automobiles sealing structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121024 Termination date: 20160118 |
|
| EXPY | Termination of patent right or utility model |