CN202065523U - Thermal expansion valve - Google Patents
Thermal expansion valve Download PDFInfo
- Publication number
- CN202065523U CN202065523U CN2011200292853U CN201120029285U CN202065523U CN 202065523 U CN202065523 U CN 202065523U CN 2011200292853 U CN2011200292853 U CN 2011200292853U CN 201120029285 U CN201120029285 U CN 201120029285U CN 202065523 U CN202065523 U CN 202065523U
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- CN
- China
- Prior art keywords
- expansion valve
- valve
- heating power
- flaring angle
- power expansion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Details Of Valves (AREA)
- Temperature-Responsive Valves (AREA)
Abstract
The utility model provides a thermal expansion valve, which comprises a valve hole. The outlet of the valve hole is an outwardly-expanding outlet with a gradually increasing diameter. The thermal expansion valve provided in the utility model and having the valve hole with a gradually increasing diameter is enabled to alleviate a sudden pressure decrease generated when refrigerants flow out from the valve hole and resulted from a sudden flowing area change to the maximum. Thus exhaust noise is effectively decreased. The valve hole with the above-mentioned structure also enables a tighter contact between a valve ball and an inner wall of the valve-hole outlet. Therefore, the throttling energy loss of the refrigerants is reduced.
Description
Technical field
The utility model relates to refrigeration technology field, especially, relates to a kind of heating power expansion valve.
Background technique
In automotive air-conditioning system, heating power expansion valve is a kind of throttling arrangement of controlling evaporator outlet refrigerant superheat degree by the adjusting refrigerant flow, as shown in Figure 1, the critical piece of adjusting cold medium flux is arranged on valve opening 110 and the valve ball 120 in the valve body 100, the circulation area of being regulated heating power expansion valve by the axial motion of valve ball 120.Yet the valve opening 110 of existing heating power expansion valve mostly is the straight-tube structure of single diameter, and refrigerant flows in the flowing lumen 130 through valve opening 110 comparatively serious pressure jump can occur, is easy to generate bigger exhaust noise.In addition, the valve opening of said structure also makes refrigerant cause the bigger pressure loss easily in throttling process, causes the throttling energy loss of refrigerant bigger.
The model utility content
The utility model purpose is to provide a kind of heating power expansion valve, with solve refrigerant in the existing heating power expansion valve when valve opening flows out because the pressure drop that the circulation area sudden change causes, and then produce than the technical problem of exhaust noise greatly.
For solving the problems of the technologies described above, the utility model provides a kind of heating power expansion valve, comprises valve body, and valve body is provided with valve opening, and the outlet of this valve opening is that bore becomes the big shape outlet that extends out step by step.
Further, extend out the shape outlet and comprise that one or more levels bore becomes big outer enlarging gradually.
Further, extend out the shape outlet and comprise: the outer enlarging of the first order has first flaring angle; Enlarging outside the second level is arranged at the outside of the outer enlarging of the first order, have second flaring angle, and second flaring angle is greater than first flaring angle.
Further, first flaring angle is 20 ° to 40 °.
Further, first flaring angle is 30 °.
Further, second flaring angle is 70 ° to 100 °.
Further, second flaring angle is 90 °.
Further, the heating power expansion valve that the utility model provides also comprises valve ball, extends out the flaring angle of shape outlet and the sphere radian of valve ball and adapts.
The utlity model has following beneficial effect:
The valve opening of the heating power expansion valve that the utility model provides adopts the form that enlarges step by step, has reduced the pressure drop that refrigerant suddenlys change and causes because of circulation area when valve opening flows out to greatest extent, thereby has effectively reduced exhaust noise.The valve opening of this kind structure can also make valve ball tightr with contacting of valve opening, reduces the loss of the throttling energy of refrigerant.
Except purpose described above, feature and advantage, the utility model also has other purpose, feature and advantage.With reference to figure, the utility model is described in further detail below.
Description of drawings
The accompanying drawing that constitutes the application's a part is used to provide further understanding of the present utility model, and illustrative examples of the present utility model and explanation thereof are used to explain the utility model, do not constitute improper qualification of the present utility model.In the accompanying drawings:
Fig. 1 is the structural representation of the heating power expansion valve of prior art;
Fig. 2 is the structural representation of the heating power expansion valve of the utility model preferred embodiment; And
Fig. 3 is the exit portion structural representation of the valve opening of the utility model preferred embodiment.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is elaborated, but the multitude of different ways that the utility model can be defined by the claims and cover is implemented.
As shown in Figures 2 and 3, the heating power expansion valve that the utility model provides comprises the valve opening 11 that is arranged at valve body 10 inside, and the outlet of this valve opening 11 is that bore becomes the big shape outlet that extends out step by step.
The outlet of valve opening 11 can only be provided with one-level and extend out shape outlet the multistage big shape outlet that extends out that becomes gradually also can be set.The shape outlet that extends out of present embodiment comprises the outer enlarging 111 of the first order with first flaring angle, and having enlarging 112 outside the second level of second flaring angle, enlarging 112 is arranged at the outside of the outer enlarging 111 of the first order and second flaring angle greater than first flaring angle outside the second level.
Preferably, first flaring angle of the outer enlarging 111 of the first order can be arranged between 20 ° to 40 °, and second flaring angle can be arranged between 70 ° to 100 °.In the present embodiment, first flaring angle is set to 30 °, and second flaring angle is 90 °.Certainly, also can change the flaring angle of outer enlargings at different levels according to the working environment of heating power expansion valve, to adapt to different flow needs.
Better for the sealing effect between the outlet that makes valve ball and valve opening, the flaring angle that extends out the shape outlet should adapt with the sphere radian of valve ball 12, so that the sphere of valve ball 12 can fit in the inwall that extends out the shape outlet more closely.
The heat expansion valve that the utility model provides is designed to the outlet of valve opening the form of segmentation flaring, valve ball 12 moves downward with valve ball seat 14 outlet of valve opening 11 is opened, pressure is gradual when valve opening 11 flows to cavity 13 in throttling process reduces for fluid, can effectively reduce noise and reduce the pressure loss.
The above is a preferred embodiment of the present utility model only, is not limited to the utility model, and for a person skilled in the art, the utility model can have various changes and variation.All within spirit of the present utility model and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (8)
1. a heating power expansion valve comprises valve body (10), and valve body (10) is provided with valve opening (11), it is characterized in that, the outlet of described valve opening (11) is that bore becomes the big shape outlet that extends out step by step.
2. heating power expansion valve according to claim 1 is characterized in that, describedly extends out shape outlet and comprises that one or more levels bore becomes big outer enlarging gradually.
3. heating power expansion valve according to claim 2 is characterized in that, describedly extends out shape outlet and comprises:
The outer enlarging (111) of the first order has first flaring angle;
Enlarging outside the second level (112) is arranged at the outside of the outer enlarging (111) of the described first order, have second flaring angle, and described second flaring angle is greater than described first flaring angle.
4. heating power expansion valve according to claim 3 is characterized in that, described first flaring angle is 20 ° to 40 °.
5. heating power expansion valve according to claim 4 is characterized in that, described first flaring angle is 30 °.
6. heating power expansion valve according to claim 5 is characterized in that, described second flaring angle is 70 ° to 100 °.
7. heating power expansion valve according to claim 6 is characterized in that, described second flaring angle is 90 °.
8. heating power expansion valve according to claim 1 is characterized in that, also comprises valve ball (12), describedly extends out the flaring angle of shape outlet and the sphere radian of described valve ball (12) adapts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200292853U CN202065523U (en) | 2011-01-27 | 2011-01-27 | Thermal expansion valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200292853U CN202065523U (en) | 2011-01-27 | 2011-01-27 | Thermal expansion valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202065523U true CN202065523U (en) | 2011-12-07 |
Family
ID=45059385
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200292853U Expired - Fee Related CN202065523U (en) | 2011-01-27 | 2011-01-27 | Thermal expansion valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202065523U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106286969A (en) * | 2016-08-30 | 2017-01-04 | 博耐尔汽车电气系统有限公司 | A kind of expansion valve assembly |
-
2011
- 2011-01-27 CN CN2011200292853U patent/CN202065523U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106286969A (en) * | 2016-08-30 | 2017-01-04 | 博耐尔汽车电气系统有限公司 | A kind of expansion valve assembly |
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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: 20111207 Termination date: 20150127 |
|
| EXPY | Termination of patent right or utility model |