CN102588669B - Thermal expansion valve - Google Patents
Thermal expansion valve Download PDFInfo
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- CN102588669B CN102588669B CN201110002801.8A CN201110002801A CN102588669B CN 102588669 B CN102588669 B CN 102588669B CN 201110002801 A CN201110002801 A CN 201110002801A CN 102588669 B CN102588669 B CN 102588669B
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- valve
- core frame
- spool
- 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, particularly relate to a kind of heating power expansion valve being applicable to automotive air conditioning device.
Background technique
The wide variety of heating power expansion valve, one of them such as connects the H type heating power expansion valve of vaporizer inlet/outlet.This heating power expansion valve together forms freeze cycle by pipeline and compressor, condenser, vaporizer.
Form the heating power expansion valve of this freeze cycle, it is a kind of widely known expansion valve, the midway of the high pressure coolant path that its high pressure refrigerant being supplied to described vaporizer passes through is formed with valve port, relatively this valve port to be relative to the configuration spherical spool from upstream side, according to the low pressure refrigerant temperature and pressure that described vaporizer is discharged, and make described spool close to or away from described 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 and the aluminum valve body 7 of corner post shape in Fig. 4, by refrigerant to be supplied to first path 4 of vaporizer 3 import 3a from condenser 2a by cistern 2b and vaporizer 3 to be exported the alternate path 6 that refrigerant that 3b discharges is supplied to compressor 5 and formed.First path 4 and alternate path 6, spaced bottom and the top being arranged on valve body 7.
In addition, the first path 4, by the low voltage side path 4a be connected with the import 3a of vaporizer 3 with form with the valve opening 8 be connected with high pressure side path 4b by low voltage side path 4a with the high pressure side path 4b that condenser 2a and cistern 2b are connected.Moreover described alternate path 6, the open end from the open end of described low voltage side path 4a to described high pressure side path 4b, transverse direction wears.
In addition, described valve opening 8, by the liquid coolant adiabatic expansion that described cistern 2b supplies, and has along the axial center line of valve body 7.The import of the upstream side of described valve opening 8 is formed with valve seat 8a, the spherical spool 9 on its valve seat 8a, the pretension parts 10 consisted of compression helical spring 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 inlet passage 4b1 of described high pressure side path 4b and the outlet passage 4a1 of low voltage side path 4a distinguish relative opening on the end face 21b and opposite ends face 21a of described valve body 7, the open end on the 21a of this opposite ends face connect the import 3a of described vaporizer 3.
The valve chamber 11 that the described high pressure side path 4b imported for the liquid coolant of described cistern 2b has inlet passage 4b1 and is connected with this inlet passage 4b1, this valve chamber 11 be coaxially formed with the center line of valve opening 8 have bottom compartment, and to be sealed by adjustment seat 12.
Therefore, described valve chamber 11 is formed between the described high pressure side path 4b imported for the liquid coolant of described cistern 2b and described low voltage side path 4a.Described valve chamber 11 is connected with described inlet passage 4b1, and described valve opening 8 is formed at the top of valve chamber 11.Thus described high pressure side path 4b is communicated with by described valve opening 8 and valve chamber 11 with described low voltage side path 4a.
Contain compression helical spring 10 in described valve chamber 11, support described compression helical spring 10 set between the valve core frame 13 of described spherical spool 9 and described adjustment seat 12 and fasten with described valve core frame 13; The active force of described compression helical spring 10 is by acting on described spool 9 for the valve core frame 13 supporting spool 9.
In addition, the stepped part 131 described compression helical spring 10 and described valve core frame 13 formed fastens.
In addition, valve body 7 is provided with and is formed in its axial vertical hole 14, and the drive link 15 of through 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 described large-diameter portion 15f connects and through described valve opening 8, and the bottom of described minor diameter part 15g abuts the top of described spherical spool 9.In addition, the through described valve opening 8 of the minor diameter part 15g of described drive link 15 be formed with gap with the surrounding of described valve opening 8.Described spherical spool 9 is moved by the valve opening position of drive link 15 to described valve opening 8, and, described spherical spool 9 by described compression helical spring 10 to closing the direction of described valve opening 8 and valve closing direction pretension.
In addition, the large-diameter portion 15f of described drive link 15 is connected with diaphragm 16, in the air tank head 17 that the upper end portion that this diaphragm 16 is enclosed in described valve body 7 is assembled, and the equal pressure chamber 19 being divided into diaphragm chamber 18 and being connected with alternate path 6.Known diaphragm driven medium is filled with by capillary tube in described diaphragm chamber 18.The diaphragm driven medium of described diaphragm chamber 18 is used for conducting the heat utilizing drive link 15 and heat by conduction and described alternate path 6 side, and the driven medium of described diaphragm gasifies according to its heat conducted, and its pressure acts on above described diaphragm 16.In addition, when the pretension parts 10 that compression helical spring is formed are in the position of balancing each other with the power acting on described diaphragm 16 by described drive link 15, the action of spherical spool 9, forms the state of the valve seat 8a close to or away from valve opening 8.
Thus, the refrigerant imported from the inlet passage 4b1 of high pressure side path 4b flows to described vaporizer 3 cold medium flux through low voltage side path 4a is controlled by regulating the aperture of described valve opening 8.
Therefore, the heat insulation expansion of refrigerant of described high pressure side path 4b to low voltage side path 4a is made by described spool 9 and valve opening 8, then the import 3a (with reference to Japanese Patent Patent document 1, i.e. Japanese utility model application bulletin 48-9685 publication) of described vaporizer 3 is supplied to from the outlet passage 4a1 of described low voltage side path 4a.
From described heating power expansion valve, the highly pressurised liquid refrigerant imported in the inlet passage 4b1 of described high pressure side path 4b, for some reason, such as, when rotating speed due to automobile air conditioner compressor sharply changes, along with the variation of its pressure, described spherical spool 9 likely vibrative phenomenon.When described spool 9 produces vibration, noise also produces along with vibration simultaneously.
Therefore, by suppressing the vibration of spool 9, and then prevent because the disc vibration caused by described pressure oscillation has an impact to heating power expansion valve 1 noise, and suppress the unstable action of above-mentioned spool 9, a kind of structure that Japanese Patent Patent document 2 (JP 2005-156046 publication) is shown is, support device between the valve core frame of described spherical spool and compression helical spring and have the vibration-proof spring as vibration damping equipment, due to the structure of this vibration-proof spring be slightly ring-type plate body on be formed with multiple sliding plate, so, the having stable behavior of described spherical spool can be made (with reference to Japanese Patent Patent document 2, i.e. JP 2005-156046 publication).
The vibration damping equipment that existing vibration-proof spring is formed, although can suppress because of highly pressurised liquid refrigerant pressure oscillation etc. the disc vibration that causes and the noise produced with this vibration, but, but the slip resistance of the inwall 111 by improving the relatively described valve chamber 11 of above-mentioned vibration damping equipment is not considered, the noise better suppressing the vibration of described spool and produce with this vibration, reduces the technical problem that described highly pressurised liquid refrigerant flows to the sinuous flow produced in the process of described valve chamber 11 and the rectification improving high pressure refrigerant simultaneously further.
Summary of the invention
The object of the invention is the defect solving above-mentioned prior art, for a kind of heating power expansion valve that this provides, not only can suppress the vibration of described spool, reduce because it vibrates the noise produced, but also described high pressure refrigerant can be reduced further flowing to the sinuous flow produced in the process of described 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 being arranged on and valve body carries out according to refrigerant pressure and temperature the air tank head that conjugates; With the drive link portion being arranged on the spool in described valve body by above-mentioned air tank head distortion with driving, this drive link portion is arranged between described spool and described air tank head; Described heating power expansion valve also comprises the valve core frame for supporting described spool; And to be engaged by described valve core frame and to be ordered about the compression helical spring of described spool by this valve core frame; And be installed in and act on by valve core frame the vibration damping equipment that being used between the helical spring of described spool and described valve core frame prevents described disc vibration; This vibration damping equipment and described valve core frame fasten; Described compression helical spring acts on described spool by valve core frame; Described vibration damping equipment, by the device section of the summary ring-type for assembling described valve core frame and the multiple elastic foot arranged from described device section curved shape and form from the elastomeric ribs that described device section curved shape is arranged; Described elastomeric ribs is arranged between adjacent described elastic foot.
Heating power expansion valve as above, wherein, the outside in the hole that the device section center that described elastomeric ribs and described elastic foot will be arranged on described slightly ring-type is formed.
Compared with prior art, the present invention has following characteristics and advantage:
Heating power expansion valve of the present invention, due to above-mentioned spool vibration damping equipment by assemble described valve core frame summary ring-type device section and the multiple elastic foot arranged from described device section curved shape and form from the elastomeric ribs that described device section curved shape is arranged; And described elastomeric ribs is arranged between adjacent described elastic foot, therefore, relatively because of vibration and the unstable action of the described spherical spool that pressure changes and changes in flow rate produced thus causes of high pressure refrigerant, responsiveness can be improved.
And the outside in the hole that the center that will be arranged on described device section due to described elastomeric ribs and described elastic foot is formed, therefore, can prevent the bending of described compression helical spring.
Accompanying drawing explanation
The following drawings is only intended to schematically illustrate the present invention and explain, not delimit the scope of the invention.Wherein,
Fig. 1 is the main portions longitudinal section of heating power expansion valve embodiment of the present invention.
Fig. 2 is the stereogram of vibration damping equipment in Fig. 1.
Fig. 3 is the unfolded drawing of vibration damping equipment in Fig. 1.
Fig. 4 is the longitudinal section of existing heating power expansion valve.
Embodiment
Embodiments of the present invention are described referring to drawing.
Figure 1 shows that heating power expansion valve first mode of execution of the present invention main portions longitudinal section.The structure of the above-mentioned heating power expansion valve 1 ' in Fig. 1 is substantially identical with Fig. 4, but with unique difference of Fig. 4 is, described vibration damping equipment 20 is located at described spherical spool and supports with between described valve core frame 13 and described compression helical spring 10.Therefore, the part that Fig. 1 and Fig. 4 is identical represents with prosign, saves the mark at detailed position, only marks out to the component part symbol of main portions of the present invention.
And the vibration damping equipment 20 on the heating power expansion valve 1 ' in Fig. 1, the described stepped part 131 and the described compression helical spring 10 that are used to the described valve core frame 13 supporting described spool 9 are interposed in described valve chamber 11.
Described vibration damping equipment 20 is 1 elastic metallic material, such as, 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, described vibration damping equipment 20 is by omiting ring-type (i.e. ring-type or ring-like.In this enforcement, for circular or similar circular) plate body 20a and from its radial setting in plate body periphery and from 8 curved shape elastic foot 20b of root bending and the curved shape elastomeric ribs 20c be configured between described elastic foot 20b is formed from its radial setting in plate body periphery and from 8 of root bending; Further, as shown in Figure 2, the length of described elastomeric ribs 20c radiation direction is shorter than the length of described elastic foot 20b radiation direction, and such as, as in Fig. 2, the length of described elastomeric ribs 20c is approximately the half of described elastic foot 20b length.In addition, described plate body 20a is provided with the hole 20e being positioned at described plate body 20a central part, and in described hole 20e, the cylindric teat 132 of valve core frame 13 is stated in insertion to some extent.Thus make vibration damping equipment 20 be assemblied between described valve core frame 13 and described compression helical spring 10, described vibration damping equipment 20 is configured in described valve chamber 11.In addition, as shown in Figure 1, described cylindric teat 132 is connected to form with described stepped part 131 and is integrated.Further, please refer to Fig. 3, is the unfolded drawing of vibration damping equipment of the present invention.As shown in Figure 3, such as integrally formed by punch process, the number of described elastic foot 20b and described elastomeric ribs 20c is not limited to 8, such as, also can be 4.
Moreover the tip portion of described elastic foot 20b is formed with protuberance 20d, as shown in Figure 1, described elastic foot 20b is connected by the inwall 111 in described protuberance 20d and described valve chamber 11, and described protuberance 20d becomes the portion of being flexible in sliding contact.In the inner side of described 8 elastomeric ribs 20c, described compression helical spring 10 is arranged between described stepped part 131 and described adjustment seat 12.
Known by the above-mentioned vibration damping equipment 20 formed, when described highly pressurised liquid refrigerant sharply produces pressure oscillation and changes in flow rate, when described spool 9 produces vibration and produces noise with its vibration, by the resistivity that the bending generation of described elastic foot 20b is contrary with direction of vibration, described vibration damping equipment 20 can suppress the vibration of described spool 9 and the generation of described noise.
Now, the resistivity of described elastic foot 20b is encouraged by described elastomeric ribs 20c, thus can increase the resistivity of described elastic foot 20.Disc vibration is larger, and the resistivity that elastic foot 20b and elastomeric ribs 20c produces is larger.
And, because described vibration damping equipment 20 is made up of described elastic foot 20b and described elastomeric ribs 20c, and between the described valve core frame 13 be configured in described valve chamber and described compression helical spring 10, therefore, the generation of the described high pressure refrigerant sinuous flow flow in described valve chamber 11 can be reduced, and the rectified action of described high pressure refrigerant can be improved.
Claims (1)
1. a heating power expansion valve, comprises being arranged on and valve body carries out according to refrigerant pressure and temperature the air tank head that conjugates; With the drive link portion being arranged on the spool in described valve body by above-mentioned air tank head distortion with driving, this drive link portion is arranged between described spool and described air tank head; Described heating power expansion valve also comprises the valve core frame for supporting described spool; And to be engaged by described valve core frame and to be ordered about the compression helical spring of described spool by this valve core frame; And be installed in the vibration damping equipment that being used between described compression helical spring and described valve core frame prevents described disc vibration; This vibration damping equipment and described valve core frame fasten; Described compression helical spring acts on described spool by valve core frame;
It is characterized in that, described vibration damping equipment, by the device section of the summary ring-type for assembling described valve core frame and the multiple elastic foot arranged from described device section curved shape and form from the elastomeric ribs that described device section curved shape is arranged; Described elastomeric ribs is arranged between adjacent described elastic foot, the outside in the hole that the device section center that described elastomeric ribs and described elastic foot are arranged on described slightly ring-type is formed, and the length of described elastomeric ribs is approximately the half of described elastic foot length.
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 CN102588669A (en) | 2012-07-18 |
| CN102588669B true 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) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6142181B2 (en) | 2013-03-12 | 2017-06-07 | 株式会社テージーケー | Expansion valve and anti-vibration spring |
| 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 |
| JP6368895B2 (en) * | 2014-10-01 | 2018-08-08 | 株式会社テージーケー | 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 |
| JP6697975B2 (en) * | 2016-08-09 | 2020-05-27 | 株式会社不二工機 | 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 |
| JP6584456B2 (en) * | 2017-06-29 | 2019-10-02 | 株式会社不二工機 | Expansion valve |
| JP6886949B2 (en) * | 2018-07-25 | 2021-06-16 | 株式会社鷺宮製作所 | Pressure regulating valve |
Citations (4)
| 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 |
| 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 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4666904B2 (en) * | 2003-11-27 | 2011-04-06 | 株式会社不二工機 | Expansion valve |
-
2011
- 2011-01-07 CN CN201110002801.8A patent/CN102588669B/en active Active
Patent Citations (4)
| 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 |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102588669A (en) | 2012-07-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C53 | Correction of patent for invention or patent application | ||
| 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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| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: ZHEJIANG SANHUA AUTO PARTS STOCK CO., LTD. TO: ZHEJIANG SANHUA AUTO PARTSCO., LTD. |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |