CN2804508Y - Thermodynamic expansion valve set with fast tunnel for diaphragm balance medium - Google Patents
Thermodynamic expansion valve set with fast tunnel for diaphragm balance medium Download PDFInfo
- Publication number
- CN2804508Y CN2804508Y CN 200520100994 CN200520100994U CN2804508Y CN 2804508 Y CN2804508 Y CN 2804508Y CN 200520100994 CN200520100994 CN 200520100994 CN 200520100994 U CN200520100994 U CN 200520100994U CN 2804508 Y CN2804508 Y CN 2804508Y
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- CN
- China
- Prior art keywords
- diaphragm
- cavity
- express passway
- guide portion
- valve
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- 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 - Lifetime
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Abstract
The utility model relates to a thermodynamic expansion valve which is provided with a fast channel of diaphragm balance media. The utility model comprises a valve body, an air box head component and a valve core component, wherein the air box head component is connected with the upper end of the valve body; the air box head component is divide into an upper cavity and a lower cavity by a diaphragm; a transmission sheet which is guided by a guiding part is arranged on the lower side of the diaphragm, and a leading cavity which is communicated with the balance channel is formed between the transmission sheet and the valve body. The utility model is characterized in that a fast channel which is communicated with the lower cavity and the leading cavity is arranged on the guiding part. The flowing areas of fluids between the transmission sheet and the upper end face of a connecting seat are enlarged under the condition that the good guide of the transmission sheet is ensured; though the valve is opened to the maximum extent, the transmission sheet is completely attached to the connecting seat; besides, the balance media of the leading cavity can quickly enter the lower cavity and the reaction speed can be improved when the diaphragm affects the external factors to change.
Description
[technical field]
The utility model relates to a kind of thermal expansion valve arrangement that is used for the fluid medium throttling expansion, a kind of specifically heating power expansion valve that is provided with diaphragm balance media express passway.
[background technique]
By responding the heating power expansion valve of fluid pressure signal that heat causes, be specially adapted in refrigeration or air-conditioning system, control the flow that flow into refrigeration agent in the vaporizer to controlling by the fluid of valve.Compressed high temperature and high pressure gaseous refrigerant flows among the condenser L in compressor Y, be cooled to high pressure liquid refrigerant, enter expansion valve P and carry out the throttling step-down, be inhaled in the compressor after entering vaporizer Z absorption heat of vaporization by the expansion valve outlet then, finish a circulation (referring to Fig. 1).
Known heating power expansion valve (referring to Fig. 2) comprises valve body G1, air tank head parts G2, valve hole part and Regulation spring G3: air tank head parts G2 comprises connecting base G28, gas tank seat G23, gas tank lid G21, diaphragm G22, driver blade G24, capillary tube G27 and bulb G25, by connecting base G28 whole air tank head parts are connected valve body G1 upper end, form epicoele G26 between gas tank lid G21 and the diaphragm G22, diaphragm G22, connecting base G28, gas tank seat G23 constitutes cavity of resorption G29, bulb G25 is communicated with epicoele G26 by capillary tube G27, and driver blade G24 is arranged in diaphragm G22 downside and by guide portion guiding (figure is connecting base G28 as guide portion); Valve body G1 has an import G11, an outlet G12 and is communicated with the valve port G13 of import and outlet, form first guide cavity G14 between valve body G1 upper end and the driver blade G24, (this balance channel can be the outer balance channel G15 that is introduced the operating on low voltage medium by the evaporator outlet place outwards to offer balance channel from first guide cavity G14, also can be the inner equilibrium passage G16 that is communicated with outlet, as shown in phantom in FIG.); Valve hole part comprises drive link G42 and is positioned at the spool G41 of valve port downside, contacts to respond the action of diaphragm G22 with driver blade G24 on the drive link G42, and the lower end extends valve port G13 downside and conflicts on spool G41; Regulation spring G3 lower end is supported by adjusting nut G17, and spool G41 is supported in the upper end, and adjusting nut G17 downside also has sealing seat G18; Thereby spool G41 is conditioned spring G3 and gas tank head member G2 remains on the valve port downside: diaphragm G22 is subjected to the pressure of the cavity of resorption of the epicoele G26 internal pressure of its upside and its downside, first guide cavity G14 and acts on the spool by driver blade G24, drive link G42, the spring force that Regulation spring G3 is produced is supported on the spool G41, when the diaphragm upper and lower sides bears variation in pressure, diaphragm action with power pass to driver blade and with Regulation spring control the spool lifting and change and valve port G13 between the position, the Control work rate-of flow.Above-mentioned known expansion valve, driver blade cooperates distance very little usually with the connecting base upper-end surface, and along with aperture becomes big gap smaller, therefore no matter taking outer balance mode still is the inner equilibrium mode, the problem that above-mentioned matching gap is little is unfavorable for that the balance media of introducing flows into cavity of resorption smoothly, and is more blunt when causing diaphragm response external factors vary.
[model utility content]
The technical assignment of the technical problems to be solved in the utility model and proposition is to overcome the existing technological deficiency of above-mentioned heating power expansion valve, a kind of heating power expansion valve that is provided with diaphragm balance media express passway is provided, it is inhomogeneous to produce bigger pressure when reducing to enter the air tank head cavity of resorption because of balance media that off-centre causes, the reaction velocity when accelerating diaphragm response external factors vary.For this reason, the utility model is taked following technical proposals:
A kind of heating power expansion valve that is provided with diaphragm balance media express passway comprises valve body, air tank head parts and valve hole part, has the valve port and the balance channel of import, outlet, connection import and outlet on the described valve body; Described air tank head parts are connected the valve body upper end, the diaphragm of action is separated into epicoele and cavity of resorption by the response pressure variation for it, be provided with driver blade at the diaphragm downside, and form the first guide cavity that is communicated with described balance channel between driver blade and the valve body by guide portion guiding; Described valve hole part comprises near spool the valve port and the drive link between driver blade and spool; It is characterized in that described guide portion is provided with the express passway that is communicated with cavity of resorption and first guide cavity.This programme has increased fluid flow area between driver blade and the connecting base upper-end surface by express passway is set under the prerequisite that guarantees the driver blade good guidance, even it is maximum that valve opening reaches, driver blade and connecting base are fitted fully, also can make the balance media of first guide cavity enter into cavity of resorption fast, the reaction velocity when accelerating diaphragm response external factors vary.
In the specific implementation, simple in structure for making, perhaps strengthen technique effect of the present utility model, can also take following additional technical feature:
Described guide portion can be arranged on the valve body; Also can be arranged on the air tank head parts, the cavity of resorption of this moment can be surrounded by gas tank seat and diaphragm, and guide portion is arranged on the gas tank seat, and perhaps cavity of resorption is surrounded by connecting base, gas tank seat and diaphragm, and guide portion is arranged on the connecting base.
Described express passway is offered axial groove and is formed on guide portion.
Described express passway is offered radial groove and is formed on guide portion.
Described express passway is offered skewed slot and is formed on guide portion.
Described express passway is the through hole that is opened on the guide portion.
The utility model is simple in structure, is skillfully constructed, and is convenient to processing and assembling, and is practical.
Below in conjunction with Figure of description the utility model is described further.
[description of drawings]
Fig. 1 is the schematic representation that expansion valve is used for refrigeration system.
Fig. 2 is a kind of structural representation of known heating power expansion valve.
Fig. 3 is a concrete structure schematic representation of the present utility model.
Fig. 4 a is another concrete structure schematic representation of the utility model guide portion.
Fig. 4 b is the worm's eye view of Fig. 4 a.
Fig. 5 a is the 3rd a concrete structure schematic representation of the utility model guide portion.
Fig. 5 b is the worm's eye view of Fig. 5 a.
[embodiment]
Heating power expansion valve as shown in Figure 3, comprise valve body 1, air tank head parts 2, valve hole part and Regulation spring 3: air tank head parts 2 comprise connecting base 28, gas tank seat 23, gas tank lid 21, diaphragm 22, driver blade 24, capillary tube 27 and bulb 25, by connecting base 28 whole air tank head parts are connected valve body 1 upper end, form epicoele 26 between gas tank lid 21 and the diaphragm 22, diaphragm 22, connecting base 28, gas tank seat 23 constitutes cavity of resorption 29, bulb 25 is communicated with epicoeles 26 by capillary tube 27, and driver blade 24 is arranged in diaphragm 22 downsides and by guide portion guiding (figure is a connecting base 28 as guide portion); Valve body 1 has an import 11, an outlet 12 and is communicated with the valve port 13 of import and outlet, form first guide cavity 14 between valve body 1 upper end and the driver blade 24, (this balance channel can be an outer balance channel 15 from the evaporator outlet place to first guide cavity 14 that introduced balance media by outwards to offer balance channel from first guide cavity 14; Also can be by the inner equilibrium passage 16 of outlet, as shown in phantom in FIG.) to first guide cavity 14 introducing balance medias; Valve hole part comprises drive link 42 and the spool 41 that is positioned at the valve port downside, and drive link 42 upper ends contact the action with response diaphragm 22 with driver blade 24, and the lower end extends valve port 13 downsides and conflicts on spool 41; Regulation spring 3 lower ends are supported by adjusting nut 17, and spool 41 is supported in the upper end, and adjusting nut 17 downsides also have sealing seat 18; Thereby spool 41 is conditioned spring 3 and gas tank head member 2 remains on the valve port downside: diaphragm 22 be subjected to epicoele 26 internal pressures of its upside and its downside cavity of resorption 29, first guide cavity 14 pressure and act on the spool by driver blade 24, drive link 42, the spring force that Regulation spring 3 is produced is supported on the spool 41, when the diaphragm upper and lower sides bears variation in pressure, diaphragm action with power pass to driver blade and with Regulation spring control the spool lifting and change and valve port 13 between the position, the Control work rate-of flow.Be that with known heating power expansion valve difference part guide portion is provided with express passway, this express passway can be following concrete form at least:
(1), offer radial groove 28b in the upper end of guide portion (connecting base) and form express passway, still by the hole wall of connecting base to driver blade guiding (referring to Fig. 4 a, 4b).
(2), on guide portion (connecting base), offer skewed slot 28c and form express passway, still by the hole wall of connecting base to driver blade guiding (referring to Fig. 5 a, 5b).
(3), on guide portion (connecting base), offer through hole, as express passway still by the hole wall of connecting base to driver blade guiding (figure slightly).
The guide portion of ubi supra also can be following concrete condition: according to the concrete annexation of air tank head parts and valve body, it can be arranged on the valve body and (not provide diagram); Also can be arranged on the air tank head parts, the cavity of resorption of this moment can be surrounded by gas tank seat and diaphragm, guide portion is arranged on the gas tank seat (does not provide diagram).
Need to prove, the utility model essence is that the express passway that is communicated with cavity of resorption and first guide cavity is set on guide portion, with under the prerequisite that guarantees the driver blade good guidance, increased fluid flow area between driver blade and the connecting base upper-end surface, even it is maximum that valve opening reaches, driver blade and connecting base are fitted fully, also can make the balance media of first guide cavity enter into cavity of resorption fast; Reaction velocity when accelerating diaphragm response external factors vary; Therefore, about the concrete form of express passway, the utility model is not done concrete qualification, is not limited to the disclosed concrete structure of the utility model yet.On this basis, the variation at relevant other positions of heating power expansion valve, such as the position setting of outlet, the epicoele of air tank head parts has or not by capillary tube and is communicated with bulb etc., and this programme is not all had influence, is not limited to the above specific constructive form of addressing.
Claims (9)
1, a kind of heating power expansion valve that is provided with diaphragm balance media express passway, comprise valve body (1), air tank head parts (2) and valve hole part, have the valve port (13) and the balance channel of import (11), outlet (12), connection import and outlet on the described valve body (1); Described air tank head parts (2) are connected the valve body upper end, the diaphragm (22) of action is separated into epicoele and cavity of resorption by the variation of the response degree of superheat for it, be provided with driver blade (24) at diaphragm (22) downside by guide portion guiding, and the first guide cavity (14) that formation is communicated with described balance channel between driver blade (24) and the valve body (1); Described valve hole part comprise be positioned near the spool (41) the valve port and be positioned at driver blade (24) and spool (41) between drive link (42); It is characterized in that described guide portion is provided with the express passway that is communicated with cavity of resorption and first guide cavity (14).
2, the heating power expansion valve that is provided with diaphragm balance media express passway according to claim 1 is characterized in that described guide portion is arranged on the valve body (1).
3, the heating power expansion valve that is provided with diaphragm balance media express passway according to claim 1 is characterized in that described guide portion is arranged on the air tank head parts (2).
4, the heating power expansion valve that is provided with diaphragm balance media express passway according to claim 3 is characterized in that described cavity of resorption is surrounded by gas tank seat and diaphragm, and described guide portion is arranged on the gas tank seat.
5, the heating power expansion valve that is provided with diaphragm balance media express passway according to claim 3 is characterized in that described cavity of resorption is surrounded by connecting base, gas tank seat and diaphragm, and described guide portion is arranged on the connecting base.
6,, it is characterized in that described express passway offers axial groove and form on guide portion according to the described heating power expansion valve that is provided with diaphragm balance media express passway of 1～5 arbitrary claim.
7,, it is characterized in that described express passway offers radial groove (28b) and form on guide portion according to the described heating power expansion valve that is provided with diaphragm balance media express passway of 1～5 arbitrary claim.
8,, it is characterized in that described express passway offers skewed slot (28c) and form on guide portion according to the described heating power expansion valve that is provided with diaphragm balance media express passway of 1～5 arbitrary claim.
9,, it is characterized in that described express passway is the through hole that is opened on the guide portion according to the described heating power expansion valve that is provided with diaphragm balance media express passway of 1～5 arbitrary claim.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520100994 CN2804508Y (en) | 2005-03-16 | 2005-03-16 | Thermodynamic expansion valve set with fast tunnel for diaphragm balance medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520100994 CN2804508Y (en) | 2005-03-16 | 2005-03-16 | Thermodynamic expansion valve set with fast tunnel for diaphragm balance medium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2804508Y true CN2804508Y (en) | 2006-08-09 |
Family
ID=36909800
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520100994 Expired - Lifetime CN2804508Y (en) | 2005-03-16 | 2005-03-16 | Thermodynamic expansion valve set with fast tunnel for diaphragm balance medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2804508Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102466377A (en) * | 2010-11-18 | 2012-05-23 | 浙江三花股份有限公司 | Expansion valve |
-
2005
- 2005-03-16 CN CN 200520100994 patent/CN2804508Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102466377A (en) * | 2010-11-18 | 2012-05-23 | 浙江三花股份有限公司 | Expansion valve |
| WO2012065437A1 (en) * | 2010-11-18 | 2012-05-24 | 浙江三花股份有限公司 | Expansion valve |
| US9109822B2 (en) | 2010-11-18 | 2015-08-18 | Zhejiang Sanhua Co., Ltd. | Expansion valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: ZHEJIANG SANHUA VEHICLE CONTROL SYSTEM CO.LTD.; P Free format text: FORMER OWNER: ZHEJIANG SANHUA CLIMATE + APPLIANCE CONTROLS GROUP CO., LTD. Effective date: 20080411 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20080411 Address after: Three flower Industrial Park, No. 21, 60 street, economic and Technological Development Zone, Zhejiang, Hangzhou Province, China: 310018 Co-patentee after: Zhejiang Sanhua Automobile Components Co., Ltd. Patentee after: Zhejiang three flower Auto Control System Co., Ltd. Address before: Lower Liquan, Chengguan Town, Xinchang County, Zhejiang Province, China: 312500 Patentee before: Sanhua Refrigeration Group Co., Ltd., Zhejang |
|
| ASS | Succession or assignment of patent right |
Owner name: ZHEJIANG SANHUA AUTOMOBILE COMPONENTS CO., LTD. Free format text: FORMER OWNER: ZHEJIANG SANHUA AUTOMOBILE CONTROL SYSTEM CO., LTD. Effective date: 20110610 Free format text: FORMER OWNER: ZHEJIANG SANHUA AUTOMOBILE COMPONENTS CO., LTD. |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 310018 SANHUA INDUSTRIAL PARK, NO. 60, STREET NO. 21, ECONOMIC AND TECHNOLOGICAL DEVELOPMENT ZONE, HANGZHOU CITY, ZHEJIANG PROVINCE TO: 310018 NO. 60, STREET NO. 21, ECONOMIC AND TECHNOLOGICAL DEVELOPMENT ZONE, HANGZHOU CITY, ZHEJIANG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20110610 Address after: 310018 Hangzhou economic and Technological Development Zone, Zhejiang, No. 21 Avenue, No. 60 Patentee after: Zhejiang Sanhua Automobile Components Co., Ltd. Address before: 310018 three flower Industrial Park, No. 21, 60 Avenue, Hangzhou economic and Technological Development Zone, Zhejiang Co-patentee before: Zhejiang Sanhua Automobile Components Co., Ltd. Patentee before: Zhejiang Sanhua Auto Control System Co., Ltd. |
|
| C56 | Change in the name or address of the patentee |
Owner name: ZHEJIANG SANHUA AUTO PARTS SHARES CO., LTD. Free format text: FORMER NAME: ZHEJIANG SANHUA AUTO PARTS CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 310018 Hangzhou economic and Technological Development Zone, Zhejiang, No. 12 Avenue, No. 301 Patentee after: Zhejiang Sanhua Auto Parts Co.,Ltd. Address before: 310018 Hangzhou economic and Technological Development Zone, Zhejiang, No. 21 Avenue, No. 60 Patentee before: Zhejiang Sanhua Automobile Components Co., Ltd. |
|
| C56 | Change in the name or address of the patentee |
Owner name: ZHEJIANG SANHUA AUTO PARTS CO., LTD. Free format text: FORMER NAME: ZHEJIANG SANHUA AUTO PARTS STOCK CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 310018 Hangzhou economic and Technological Development Zone, Zhejiang, No. 12 Avenue, No. 301 Patentee after: Zhejiang Sanhua Automobile Components Co., Ltd. Address before: 310018 Hangzhou economic and Technological Development Zone, Zhejiang, No. 12 Avenue, No. 301 Patentee before: Zhejiang Sanhua Auto Parts Co.,Ltd. |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20150316 Granted publication date: 20060809 |