CN102588669A - Thermal expansion valve - Google Patents
Thermal expansion valve Download PDFInfo
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- CN102588669A CN102588669A CN2011100028018A CN201110002801A CN102588669A CN 102588669 A CN102588669 A CN 102588669A CN 2011100028018 A CN2011100028018 A CN 2011100028018A CN 201110002801 A CN201110002801 A CN 201110002801A CN 102588669 A CN102588669 A CN 102588669A
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- valve
- spool
- core frame
- valve core
- helical spring
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Abstract
The invention discloses a thermal expansion valve, which comprises an air box head, a transmission rod portion, a valve spool frame, a compression helical spring and a damping device, wherein the air box head is arranged on the valve body, the transmission rod portion is arranged in a valve spool of the valve body and between the valve spool and the air box head and is driven by deformation of the air box head, and the damping device is arranged between the compression helical spring and the valve spool frame and fastened with the valve spool frame. The compression helical spring acts on the valve spool through the valve spool frame, the damping device consists of a device portion, a plurality of elastic pins and elastic ribs, the elastic pins and the elastic ribs are arranged from the device portion in a curved manner, and the elastic ribs are arranged between adjacent elastic pins. Vibration of the valve spool of the thermal expansion valve can be suppressed, noise caused by the vibration is reduced, turbulence generated when high-pressure coolants flow to a valve chamber can be reduced further, and stability in flowing is improved.
Description
Technical field
The present invention relates to a kind of heating power expansion valve, relate in particular to a kind of heating power expansion valve that is applicable to automotive air conditioning device.
Background technique
The type of heating power expansion valve is various, and one of them for example connects the H type heating power expansion valve of vaporizer inlet/outlet.This heating power expansion valve together constitutes freeze cycle through pipeline and compressor, condenser, vaporizer.
Constitute the heating power expansion valve of this freeze cycle; It is a kind of widely known expansion valve; The high pressure coolant path that its high pressure refrigerant that supplies to said vaporizer passes through be formed with valve port midway; Relatively this valve port is from the upstream side spherical spool that has been relative to the configuration, the low pressure refrigerant temperature and pressure of discharging according to said vaporizer, and make said spool near or away from said valve port.
The formation summary central longitudinal sectional view as shown in Figure 4 of existing heating power expansion valve.
The bulk of heating power expansion valve 1 is the aluminum valve body 7 of corner post shape among Fig. 4, by refrigerant is supplied to first path 4 of vaporizer 3 import 3a through cistern 2b and the alternate path 6 that the refrigerant that vaporizer 3 outlet 3b discharge supplies to compressor 5 is formed from condenser 2a.First path 4 and alternate path 6, the space is arranged on the bottom and the top of valve body 7.
In addition, first path 4, by the low voltage side path 4a that is connected with the import 3a of vaporizer 3 and the high pressure side path 4b that is connected with condenser 2a and cistern 2b with low voltage side path 4a is constituted with the valve opening 8 that high pressure side path 4b is connected.Moreover said alternate path 6 wears to transverse direction the open end of said high pressure side path 4b from the open end of said low voltage side path 4a.
In addition, said valve opening 8 with the liquid coolant adiabatic expansion of said cistern 2b supply, and has along valve body 7 axial center lines.The import of the upstream side of said valve opening 8 is formed with valve seat 8a, and the spherical spool 9 on its valve seat 8a is through pretension parts 10 that compression helical spring constituted and pretension.In addition, low voltage side path 4a relatively high pressure side path 4b shifts to install the axle direction at valve body 7.The outlet passage 4a1 of the inlet passage 4b1 of said high pressure side path 4b and low voltage side path 4a respectively relatively to the end face 21b and anti-end face 21a of opening at said valve body 7 on, connect the import 3a of said vaporizer 3 on the open end on this anti-end face 21a.
The said high pressure side path 4b that supplies the liquid coolant of said cistern 2b to import has inlet passage 4b1 and the valve chamber 11 that is connected with this inlet passage 4b1, this valve chamber 11 for the bottom compartment that has of the coaxial formation of center line of valve opening 8, and through regulating seat 12 sealings.
Therefore, supply to form said valve chamber 11 between said high pressure side path 4b that the liquid coolant of said cistern 2b imports and the said low voltage side path 4a.Said valve chamber 11 links to each other with said inlet passage 4b1, and said valve opening 8 is formed at the top of valve chamber 11.Thereby said high pressure side path 4b and said low voltage side path 4a are communicated with through said valve opening 8 and valve chamber 11.
Contain compression helical spring 10 in the said valve chamber 11, the valve core frame 13 and the said said compression helical spring set between the seat 12 10 of regulating that support said spherical spool 9 fasten with said valve core frame 13; The active force of said compression helical spring 10 acts on said spool 9 through the valve core frame 13 that is used to support spool 9.
In addition, formed stepped part 131 fastens on said compression helical spring 10 and the said valve core frame 13.
In addition, valve body 7 is provided with through being formed on its axial vertical hole 14, and connects the drive link 15 of alternate path 6 and low voltage side path 4a.Drive link 15 is made up of large-diameter portion 15f and minor diameter part 15g, and minor diameter part 15g and said large-diameter portion 15f connect and connect said valve opening 8, the top of the said spherical spool 9 of bottom butt of said minor diameter part 15g.In addition, the minor diameter part 15g of said drive link 15 connects said valve opening 8 and is formed with the gap with around the said valve opening 8.Said spherical spool 9 moves through the valve opening position of drive link 15 to said valve opening 8, and said spherical spool 9 promptly closes valve direction pretension through said compression helical spring 10 to the direction of closing said valve opening 8.
In addition, the large-diameter portion 15f of said drive link 15 is connected with diaphragm 16, and this diaphragm 16 is enclosed in the air tank head 17 that the upper end portion of said valve body 7 assembles, and all pressures chamber 19 that is divided into diaphragm chamber 18 and is connected with alternate path 6.Be filled with known diaphragm driven medium through capillary tube in the said diaphragm chamber 18.The diaphragm driven medium of said diaphragm chamber 18 is used for conducting utilizes drive link 15 and the heat of conduction heat and said alternate path 6 sides, and the driven medium of said diaphragm gasifies according to the heat that it conducted, its pressure act on said diaphragm 16 above.In addition, when the pretension parts 10 that constitute when compression helical spring are in the position of balancing each other with the power that acts on said diaphragm 16 through said drive link 15, spherical spool 9 actions, form near or away from the state of the valve seat 8a of valve opening 8.
Thereby, controlled refrigerant that the inlet passage 4b1 of the path 4b from the high pressure side imports flows to said vaporizer 3 through low voltage side path 4a cold medium flux through the aperture of regulating said valve opening 8.
Therefore; Make the refrigerant heat insulation expansion of said high pressure side path 4b through said spool 9 and valve opening 8 to low voltage side path 4a; Supply to the import 3a (with reference to japanese laid-open patent document 1, i.e. Japanese Utility Model application bulletin 48-9685 communique) of said vaporizer 3 then from the outlet passage 4a1 of said low voltage side path 4a.
Can know by said heating power expansion valve, the highly pressurised liquid refrigerant that is imported in the inlet passage 4b1 of said high pressure side path 4b, for some reason; For example; Because during the rotating speed rapid change of automobile air conditioner compressor, along with the change of its pressure, said spherical spool 9 might vibrative phenomenon.When said spool 9 produced vibration, noise also was accompanied by vibration and produces simultaneously.
Therefore; Through the vibration of inhibition spool 9, and then prevent because of the caused spool vibration of said pressure oscillation exerts an influence to heating power expansion valve 1 noise, and the instability action that suppresses above-mentioned spool 9; A kind of structure that japanese laid-open patent document 2 (spy opens the 2005-156046 communique) is showed is; Support that device has the vibration-proof spring as vibration damping equipment between valve core frame and the compression helical spring of said spherical spool, because the structure of this vibration-proof spring is to be formed with a plurality of plates that slip on the plate body of slightly ring-type, so; Can make the action stable (with reference to japanese laid-open patent document 2, promptly the spy opens the 2005-156046 communique) of said spherical spool.
The vibration damping equipment that existing vibration-proof spring constituted; Though can suppress spool vibration that the institutes such as pressure oscillation because of the highly pressurised liquid refrigerant cause and the noise of following this vibration to produce; But; But do not consider slip resistance through the inwall 111 that improves the said relatively valve chamber 11 of above-mentioned vibration damping equipment; Come better to suppress the vibration of said spool and the noise of following this vibration to produce, further reduce said highly pressurised liquid refrigerant simultaneously and flow to sinuous flow that is produced in the process of said valve chamber 11 and the technical problem that improves the rectificationization of high pressure refrigerant.
Summary of the invention
The objective of the invention is to solve the defective of above-mentioned existing technology; Be a kind of heating power expansion valve that this provided; Not only can suppress the vibration of said spool; Reduce because of it vibrates the noise that is produced, but also can further reduce the sinuous flow that said high pressure refrigerant is produced in flowing to the process of said valve chamber, and improve flow stability.
For solving the problems of the technologies described above, a kind of heating power expansion valve that the present invention proposes comprises the air tank head that carries out displacement according to refrigerant pressure and temperature that is arranged on the valve body; Be arranged on the drive link portion of the spool in the said valve body through the distortion of above-mentioned air tank head with driving, this drive link portion is arranged between said spool and the said air tank head; Said heating power expansion valve also comprises the valve core frame that is used to support said spool; And the compression helical spring that ends and order about said spool by said valve core frame card through this valve core frame; And be installed in through valve core frame and act on the vibration damping equipment that is used for preventing said spool vibration between helical spring and the said valve core frame of said spool; This vibration damping equipment and said valve core frame fasten; Said compression helical spring acts on said spool through valve core frame; Said vibration damping equipment constitutes by the device portion of the summary ring-type that is used to assemble said valve core frame with from a plurality of elastic foots of said device portion curved shape setting and from the elastomeric ribs of said device portion curved shape setting; Said elastomeric ribs is arranged between the adjacent said elastic foot.
Aforesaid heating power expansion valve, wherein, said elastomeric ribs and said elastic foot will be arranged on the said slightly outside in the formed hole, device portion center of ring-type.
Compared with prior art, the present invention has following characteristics and advantage:
Heating power expansion valve of the present invention is because above-mentioned spool vibration damping equipment constitutes by the device portion of the summary ring-type of the said valve core frame of assembling with from a plurality of elastic foots of said device portion curved shape setting and from the elastomeric ribs of said device portion curved shape setting; And said elastomeric ribs is arranged between the adjacent said elastic foot, therefore, says that because of the vibration and the unstable action of the variation in pressure of high pressure refrigerant and the said spherical spool that changes in flow rate caused that produced thus responsiveness can be improved relatively.
And, because said elastomeric ribs and said elastic foot will be arranged on the outside in the formed hole, center of said device portion, therefore, can prevent the bending of said compression helical spring.
Description of drawings
Following accompanying drawing only is intended to the present invention is done schematic illustration and explanation, not delimit the scope of the invention.Wherein,
Fig. 1 is heating power expansion valve embodiment's of the present invention main position longitudinal section.
Fig. 2 is the stereogram of vibration damping equipment among Fig. 1.
Fig. 3 is the unfolded drawing of vibration damping equipment among Fig. 1.
Fig. 4 is the longitudinal section of existing heating power expansion valve.
Embodiment
Followingly describe mode of execution of the present invention with reference to drawing.
Shown in Figure 1 for heating power expansion valve first mode of execution of the present invention main position longitudinal section.Structure and Fig. 4 of above-mentioned heating power expansion valve 1 ' among Fig. 1 are basic identical, but with unique difference of Fig. 4 are, said vibration damping equipment 20 is located at said spherical spool and supports with between said valve core frame 13 and the said compression helical spring 10.Therefore, the part that Fig. 1 is identical with Fig. 4 is represented with prosign, saves the mark at detailed position, and only the component part to main position of the present invention marks out with symbol.
And, the vibration damping equipment 20 on the heating power expansion valve 1 ' among Fig. 1, the said stepped part 131 that is used to support the said valve core frame 13 of said spool 9 is interposed in the said valve chamber 11 with said compression helical spring 10.
Said vibration damping equipment 20 is 1 elastic metallic material, is for example processed by corrosion resistant plate, please refer to Fig. 2, is the stereogram of vibration damping equipment of the present invention.As shown in Figure 2, said vibration damping equipment 20 (is ring-type or similar ring-type by omiting ring-type.In this enforcement, for circular or similar circular) plate body 20a and constitute from the radial setting of its plate body periphery and from 8 curved shape elastic foot 20b of root bending and from the radial setting of its plate body periphery and from 8 curved shape elastomeric ribs 20c that are configured between the said elastic foot 20b of root bending; And as shown in Figure 2, the length of said elastomeric ribs 20c radiation direction is shorter than the length of said elastic foot 20b radiation direction, and for example as among Fig. 2, the length of said elastomeric ribs 20c approximately is the half the of said elastic foot 20b length.In addition, said plate body 20a is provided with the hole 20e that is positioned at said plate body 20a central part, is inserted with the cylindric teat 132 of said valve core frame 13 in the said hole 20e.Thereby, make vibration damping equipment 20 be assemblied between said valve core frame 13 and the said compression helical spring 10, said vibration damping equipment 20 is configured in the said valve chamber 11.In addition, as shown in Figure 1, said cylindric teat 132 is connected to form with said stepped part 131 and is one.And, please refer to Fig. 3, be the unfolded drawing of vibration damping equipment of the present invention.As shown in Figure 3, for example can be integrally formed through punch process, the number of said elastic foot 20b and said elastomeric ribs 20c is not limited to 8, for example also can be 4.
Moreover the tip portion of said elastic foot 20b is formed with protuberance 20d, and is as shown in Figure 1, and said elastic foot 20b connects through the inwall 111 in said protuberance 20d and the said valve chamber 11, and said protuberance 20d becomes the elasticity slide connecting part.In the inboard of said 8 elastomeric ribs 20c, said compression helical spring 10 is arranged between said stepped part 131 and the said adjusting seat 12.
Can know by the above-mentioned vibration damping equipment that constitutes 20; When said highly pressurised liquid refrigerant sharply produces pressure oscillation and changes in flow rate; When said spool 9 produces vibration and follows its vibration to produce noise; Through the bending generation of the said elastic foot 20b resistivity opposite with direction of vibration, said vibration damping equipment 20 can suppress the vibration and the said generation of noise of said spool 9.
At this moment, the resistivity of said elastic foot 20b is encouraged through said elastomeric ribs 20c, thereby can increase the resistivity of said elastic foot 20.The spool vibration is big more, and the resistivity that elastic foot 20b and elastomeric ribs 20c produce is big more.
And; Because said vibration damping equipment 20 is made up of said elastic foot 20b and said elastomeric ribs 20c; And be configured between the said valve core frame 13 and said compression helical spring 10 in the said valve chamber; Therefore, can reduce to flow into the generation of the said high pressure refrigerant sinuous flow in the said valve chamber 11, and the rectified action that can improve said high pressure refrigerant.
Claims (2)
1. heating power expansion valve comprises the air tank head that shrinks, expands according to refrigerant pressure and temperature that is arranged on the valve body; Be arranged on the drive link portion of the spool in the said valve body through the distortion of above-mentioned air tank head with driving, this drive link portion is arranged between said spool and the said air tank head; Said heating power expansion valve also comprises the valve core frame that is used to support said spool; And the compression helical spring that ends and order about said spool by said valve core frame card through this valve core frame; And be installed in the vibration damping equipment that being used between said compression helical spring and the said valve core frame prevents the vibration of said spool; This vibration damping equipment and said valve core frame fasten; Said compression helical spring acts on said spool through valve core frame;
It is characterized in that said vibration damping equipment constitutes by the device portion of the summary ring-type that is used to assemble said valve core frame with from a plurality of elastic foots of said device portion curved shape setting and from the elastomeric ribs of said device portion curved shape setting; Said elastomeric ribs is arranged between the adjacent said elastic foot.
2. heating power expansion valve as claimed in claim 1 is characterized in that, said elastomeric ribs and said elastic foot are arranged on the said slightly outside in the formed hole, device portion center of ring-type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110002801.8A CN102588669B (en) | 2011-01-07 | 2011-01-07 | Thermal expansion valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110002801.8A CN102588669B (en) | 2011-01-07 | 2011-01-07 | Thermal expansion valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102588669A true CN102588669A (en) | 2012-07-18 |
| CN102588669B CN102588669B (en) | 2015-07-01 |
Family
ID=46477727
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110002801.8A Active CN102588669B (en) | 2011-01-07 | 2011-01-07 | Thermal expansion valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102588669B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104047981A (en) * | 2013-03-12 | 2014-09-17 | 株式会社Tgk | Expansion valve and vibration-proof spring |
| CN105465440A (en) * | 2014-09-01 | 2016-04-06 | 浙江三花汽车零部件有限公司 | Thermal expansion valve |
| CN105485980A (en) * | 2014-10-01 | 2016-04-13 | 株式会社Tgk | Control valve |
| 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 |
| CN106679246A (en) * | 2016-07-08 | 2017-05-17 | 浙江新劲空调设备有限公司 | Novel vibration and noise reducing expansion valve |
| CN109210208A (en) * | 2017-06-29 | 2019-01-15 | 株式会社不二工机 | expansion valve |
| US20190178542A1 (en) * | 2016-08-09 | 2019-06-13 | Fujikoki Corporation | Expansion valve |
| CN110778762A (en) * | 2018-07-25 | 2020-02-11 | 株式会社鹭宫制作所 | Pressure regulating valve |
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| DE10218817A1 (en) * | 2002-04-26 | 2003-11-06 | Egelhof Fa Otto | Control valve, for air-conditioning unit, has regulating element displaced into closed position independent of thermally-controlled actuator for blocking flow |
| JP2005156046A (en) * | 2003-11-27 | 2005-06-16 | Fuji Koki Corp | Expansion valve |
| CN1916453A (en) * | 2006-09-07 | 2007-02-21 | 上海交通大学 | Set in use for turning on and off opening of channel inside valve body |
| CN101118020A (en) * | 2006-08-01 | 2008-02-06 | 王永乐 | Heat expansion valve |
| CN101832421A (en) * | 2009-03-13 | 2010-09-15 | 浙江三花汽车控制系统有限公司 | Thermostatic expansion valve |
-
2011
- 2011-01-07 CN CN201110002801.8A patent/CN102588669B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10218817A1 (en) * | 2002-04-26 | 2003-11-06 | Egelhof Fa Otto | Control valve, for air-conditioning unit, has regulating element displaced into closed position independent of thermally-controlled actuator for blocking flow |
| JP2005156046A (en) * | 2003-11-27 | 2005-06-16 | Fuji Koki Corp | Expansion valve |
| CN101118020A (en) * | 2006-08-01 | 2008-02-06 | 王永乐 | Heat expansion valve |
| CN1916453A (en) * | 2006-09-07 | 2007-02-21 | 上海交通大学 | Set in use for turning on and off opening of channel inside valve body |
| CN101832421A (en) * | 2009-03-13 | 2010-09-15 | 浙江三花汽车控制系统有限公司 | Thermostatic expansion valve |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104047981A (en) * | 2013-03-12 | 2014-09-17 | 株式会社Tgk | Expansion valve and vibration-proof spring |
| CN104047981B (en) * | 2013-03-12 | 2017-08-29 | 株式会社 Tgk | Expansion valve and antirattle spring |
| US9909793B2 (en) | 2013-03-12 | 2018-03-06 | Tgk Co., Ltd. | Expansion valve and vibration-proof spring |
| CN105465440A (en) * | 2014-09-01 | 2016-04-06 | 浙江三花汽车零部件有限公司 | Thermal expansion valve |
| CN105465440B (en) * | 2014-09-01 | 2018-07-06 | 浙江三花汽车零部件有限公司 | Heating power expansion valve |
| CN105485980A (en) * | 2014-10-01 | 2016-04-13 | 株式会社Tgk | Control valve |
| CN105485980B (en) * | 2014-10-01 | 2019-01-15 | 株式会社Tgk | control valve |
| CN106679246A (en) * | 2016-07-08 | 2017-05-17 | 浙江新劲空调设备有限公司 | Novel vibration and noise reducing expansion valve |
| US20190178542A1 (en) * | 2016-08-09 | 2019-06-13 | Fujikoki Corporation | Expansion valve |
| EP3499150A4 (en) * | 2016-08-09 | 2020-04-08 | Fujikoki Corporation | Expansion valve |
| 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 |
| CN109210208A (en) * | 2017-06-29 | 2019-01-15 | 株式会社不二工机 | expansion valve |
| CN110778762A (en) * | 2018-07-25 | 2020-02-11 | 株式会社鹭宫制作所 | Pressure regulating valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102588669B (en) | 2015-07-01 |
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| CB02 | Change of applicant information |
Address after: 310018 Hangzhou economic and Technological Development Zone, Zhejiang, No. 12 Avenue, No. 301 Applicant after: Zhejiang Sanhua Automobile Components Co., Ltd. Address before: 310018 Hangzhou economic and Technological Development Zone, Zhejiang, No. 12 Avenue, No. 301 Applicant before: Zhejiang Sanhua Auto Parts Co.,Ltd. |
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Free format text: CORRECT: APPLICANT; FROM: ZHEJIANG SANHUA AUTO PARTS STOCK CO., LTD. TO: ZHEJIANG SANHUA AUTO PARTSCO., LTD. |
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