CN101581373A - Air tank head of thermostatic expansion valve and thermostatic expansion valve - Google Patents
Air tank head of thermostatic expansion valve and thermostatic expansion valve Download PDFInfo
- Publication number
- CN101581373A CN101581373A CNA2009101430472A CN200910143047A CN101581373A CN 101581373 A CN101581373 A CN 101581373A CN A2009101430472 A CNA2009101430472 A CN A2009101430472A CN 200910143047 A CN200910143047 A CN 200910143047A CN 101581373 A CN101581373 A CN 101581373A
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- end cap
- diaphragm
- expansion valve
- elastic member
- heating power
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Abstract
The invention provides an air tank head of a thermostatic expansion valve, comprising an air tank head cover, a diaphragm and an elastic component, wherein the air tank head cover comprises an upper end cover and a lower end cover which are welded together; the diaphragm is welded between the upper end cover and the lower end cover; and the elastic component is arranged between the diaphragm and the lower end cover and pressed between a close welded part at the edge of the diaphragm and the lower end cover. The invention also provides a thermostatic expansion valve comprising the air tank head, a capillary tube, a driving block and a valve rod. The invention overcomes the problem that the diaphragm is easy to fatigue and damage, and then achieves the effect of prolonging the service life of the diaphragm.
Description
Technical field
The present invention relates to refrigerating field, in particular to a kind of air tank head and heating power expansion valve of heating power expansion valve.
Background technique
At refrigeration technology field, heating power expansion valve is a kind of throttling arrangement of controlling the evaporator outlet gaseous refrigerant degree of superheat by adjusting vaporizer liquid supply rate, what regulate cold medium flux mainly is to control by the aperture of valve port, regulates the circulation area of heating power expansion valve by needle axially moving up and down in valve opening.Diaphragm in the air tank head drives valve rod, and valve rod drives needle and axially moves up and down, and realizes regulating the effect of cold medium flux.Existing heating power expansion valve adopts the way of stamped recess on diaphragm, the internal stress that produces when moving up and down with minimizing usually.
In realizing process of the present invention, the inventor finds that there are the following problems at least in the prior art: because diaphragm edge is by the end cap welding is fixing up and down, in the process that diaphragm moves up and down, its edge produces up-down vibration, produce at the edge weld part easily and leak and destroy, cause the tired and damage of diaphragm.
Summary of the invention
The present invention aims to provide a kind of air tank head and heating power expansion valve of heating power expansion valve, and it can solve problems such as the fatigue of diaphragm and damage.
In an embodiment of the present invention, provide a kind of air tank head of heating power expansion valve, having comprised: the gas tank skull, this gas tank skull comprises upper end cap and the lower end cap that welds together; Diaphragm is welded between upper end cap and the lower end cap; Elastic member is arranged between diaphragm and the lower end cap, and is pressed between the nearly weld part and lower end cap of diaphragm edge.
Preferably, elastic member is a shell fragment.
Preferably, elastic member in the form of a ring.
Preferably, elastic member is welded between diaphragm and the lower end cap.
Preferably, elastic member has crooked up or down end, and the curved section of Wan Qu end props up lower end cap up or down.
The present invention also provides a kind of heating power expansion valve, comprising: capillary tube, be arranged on the upper end cap top, and capillary tube links to each other with thermometer bulb; Drive block is arranged on the below of diaphragm, and drive block can move vertically; Valve rod, its upper end is connected with drive block, and the lower end links to each other with air tube; Air tank head, it comprises: the gas tank skull comprises the upper end cap and the lower end cap that weld together; Diaphragm is welded between upper end cap and the lower end cap; Elastic member is arranged between diaphragm and the lower end cap, and is pressed between the nearly weld part and lower end cap of diaphragm edge.
Preferably, elastic member is a shell fragment.
Preferably, elastic member in the form of a ring.
Preferably, elastic member is welded between diaphragm and the lower end cap.
Preferably, elastic member has crooked up or down end, and the curved section of Wan Qu end props up lower end cap up or down.
Because heating power expansion valve of the present invention, adopted elastic member, it is arranged between diaphragm and the lower end cap, and be pressed between the nearly weld part and lower end cap of diaphragm edge, so overcome the vibration of vertical direction, and have only the tension of substantially horizontal, solved the problem that diaphragm is tired easily and damage, and then reached and prolong the diaphragm effect in working life.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 has schematically shown the cross-section structure of the air tank head of heating power expansion valve according to an embodiment of the invention;
Fig. 2 has schematically shown the local structure for amplifying of the air tank head of heating power expansion valve among Fig. 1;
Fig. 3 has schematically shown the local structure for amplifying of the air tank head of heating power expansion valve according to another embodiment of the invention.
Embodiment
Below with reference to the accompanying drawings and in conjunction with the embodiments, describe the present invention in detail.
Fig. 1 has schematically shown the cross-section structure of the air tank head of heating power expansion valve according to an embodiment of the invention; As shown in the figure, the air tank head according to a kind of heating power expansion valve of the embodiment of the invention comprises: gas tank skull 1,2, and it comprises the upper end cap 1 and lower end cap 2 that welds together; Diaphragm 3 is welded between upper end cap 1 and the lower end cap 2; Elastic member 4 is arranged between diaphragm 3 and the lower end cap 2, and is pressed between the nearly weld part and lower end cap 2 at diaphragm 3 edges, and nearly weld part is meant the position of the in addition close weld of diaphragm 3 welds.When heating power expansion valve vibration diaphragm being moved down like this, because elastic member props up the nearly weld part at diaphragm 3 edges, thereby the vibration that does not produce vertical direction, and have only the tension of substantially horizontal, reduced the fatigue and the damaged condition of diaphragm.
Preferably, elastic member 4 is a shell fragment.Be convenient to like this make and install, and effect is preferable.Certainly elastic member also can be other elastic member.
Preferably, elastic member 4 for example is domain shape in the form of a ring, can certainly be semi-ring or other imperfect ring-type.Around being arranged between diaphragm and the lower end cap, guarantee bigger elastic reaction scope like this.Certainly, elastic member also can be other shape.
Preferably, elastic member 4 is welded between diaphragm 3 and the lower end cap 2.Such connection closely and firmly, and is not fragile.
Preferably, as shown in Figure 2, elastic member 4 has the end 4 that is bent upwards ", the end 4 that is bent upwards " curved section prop up lower end cap 2, the end that wherein is bent upwards refers to the part of elastic member end to the axis bending of lower end cap 2.Help like this elastic member firm prop up lower end cap, and then better prop up diaphragm 3.
Preferably, as shown in Figure 3, elastic member 4 has reclinate end 4 ", reclinate end 4 " curved section prop up lower end cap 2, wherein reclinate end refers to the part of elastic member end to the axis bending of lower end cap 2.Help like this elastic member firm prop up lower end cap, and then better prop up diaphragm 3.
The present invention also provides a kind of heating power expansion valve, comprising: the air tank head of foregoing heating power expansion valve; Capillary tube 5 is arranged on upper end cap 1 top, and capillary tube 5 links to each other with the thermometer bulb (not shown), like this, thermometer bulb can be by the degree of superheat of sensing evaporator outlet, and the pressure signal of gas is delivered to the epicoele of air tank head, the i.e. superjacent air space of diaphragm 3 by capillary tube 5; Drive block 6 is arranged on the below of diaphragm 3, and drive block 6 moves vertically, like this, diaphragm 3 since the pressure difference of the refrigerant gas in the cavity up and down move up and down thereby drive drive block 6; Valve rod 7, its upper end is connected with drive block 6, and the lower end links to each other with the air tube (not shown).Like this, drive valve rod 7 by drive block 6 and move up and down, move thereby drive needle, the size that moves axially the area of having controlled the valve port circulation of needle, thereby controlled the flow of the refrigeration agent that flows through valve body, guaranteed the degree of superheat of setting, system is normally moved.
As can be seen from the above description, the above embodiments of the present invention have realized following technique effect:
When making diaphragm produce to bottom offset when the heating power expansion valve vibration, the edge does not produce the vibration of vertical direction owing to there is shell fragment mechanism to prop up, and has only the tension of substantially horizontal, and the degree that has therefore reduced diaphragm fatigue and damaged has increased working life.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. the air tank head of a heating power expansion valve is characterized in that, comprising:
Gas tank skull (1,2) comprises the upper end cap (1) and lower end cap (2) that weld together;
Diaphragm (3) is welded between described upper end cap (1) and the lower end cap (2);
Elastic member (4) is arranged between described diaphragm (3) and the lower end cap (2), and is pressed between the nearly weld part and lower end cap (2) at described diaphragm (3) edge.
2. the air tank head of heating power expansion valve according to claim 1 is characterized in that, described elastic member (4) is a shell fragment.
3. the air tank head of heating power expansion valve according to claim 1 is characterized in that, described elastic member (4) in the form of a ring.
4. the air tank head of heating power expansion valve according to claim 1 is characterized in that, described elastic member (4) is welded between described diaphragm (3) and the described lower end cap (2).
5. the air tank head of heating power expansion valve according to claim 1 is characterized in that, described elastic member (4) has crooked up or down end, and the described curved section of crooked end up or down props up described lower end cap (2).
6. a heating power expansion valve is characterized in that, comprising:
Capillary tube (5) is arranged on described upper end cap (1) top, and described capillary tube (5) links to each other with thermometer bulb;
Drive block (6) is arranged on the below of described diaphragm (3), and described drive block (6) can move vertically;
Valve rod (7), its upper end is connected with described drive block (6), and the lower end links to each other with air tube;
Air tank head, it comprises:
Gas tank skull (1,2) comprises the upper end cap (1) and lower end cap (2) that weld together;
Diaphragm (3) is welded between described upper end cap (1) and the lower end cap (2);
Elastic member (4) is arranged between described diaphragm (3) and the lower end cap (2), and is pressed between the nearly weld part and lower end cap (2) at described diaphragm (3) edge.。
7. heating power expansion valve according to claim 6 is characterized in that, described elastic member (4) is a shell fragment.
8. heating power expansion valve according to claim 6 is characterized in that, described elastic member (4) in the form of a ring.
9. heating power expansion valve according to claim 6 is characterized in that, described elastic member (4) is welded between described diaphragm (3) and the described lower end cap (2).
10. heating power expansion valve according to claim 6 is characterized in that, described elastic member (4) has crooked up or down end, and the described curved section of crooked end up or down props up described lower end cap (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009101430472A CN101581373A (en) | 2009-05-25 | 2009-05-25 | Air tank head of thermostatic expansion valve and thermostatic expansion valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009101430472A CN101581373A (en) | 2009-05-25 | 2009-05-25 | Air tank head of thermostatic expansion valve and thermostatic expansion valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101581373A true CN101581373A (en) | 2009-11-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2009101430472A Pending CN101581373A (en) | 2009-05-25 | 2009-05-25 | Air tank head of thermostatic expansion valve and thermostatic expansion valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101581373A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102454823A (en) * | 2010-10-16 | 2012-05-16 | 浙江三花股份有限公司 | Gas tank header part and machining method thereof as well as thermal expansion valve using part |
| CN106440567A (en) * | 2016-12-06 | 2017-02-22 | 无锡优耐特净化装备有限公司 | Inner balance type thermal expansion valve |
| WO2018188512A1 (en) * | 2017-04-13 | 2018-10-18 | 浙江三花汽车零部件有限公司 | Thermal expansion valve |
| CN112879577A (en) * | 2020-12-31 | 2021-06-01 | 宁波亨博电磁技术有限公司 | Elastic sheet, nonlinear force generation structure and electromagnetic valve |
-
2009
- 2009-05-25 CN CNA2009101430472A patent/CN101581373A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102454823A (en) * | 2010-10-16 | 2012-05-16 | 浙江三花股份有限公司 | Gas tank header part and machining method thereof as well as thermal expansion valve using part |
| CN106440567A (en) * | 2016-12-06 | 2017-02-22 | 无锡优耐特净化装备有限公司 | Inner balance type thermal expansion valve |
| WO2018188512A1 (en) * | 2017-04-13 | 2018-10-18 | 浙江三花汽车零部件有限公司 | Thermal expansion valve |
| US11326816B2 (en) | 2017-04-13 | 2022-05-10 | Zhejiang Sanhua Automotive Components Co., Ltd. | Thermal expansion valve |
| CN112879577A (en) * | 2020-12-31 | 2021-06-01 | 宁波亨博电磁技术有限公司 | Elastic sheet, nonlinear force generation structure and electromagnetic valve |
| CN112879577B (en) * | 2020-12-31 | 2023-12-26 | 宁波亨博电磁技术有限公司 | Spring plate, nonlinear force generation structure and electromagnetic valve |
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Open date: 20091118 |