CN1978959A - Heating-power expansion valve - Google Patents
Heating-power expansion valve Download PDFInfo
- Publication number
- CN1978959A CN1978959A CNA2005100618486A CN200510061848A CN1978959A CN 1978959 A CN1978959 A CN 1978959A CN A2005100618486 A CNA2005100618486 A CN A2005100618486A CN 200510061848 A CN200510061848 A CN 200510061848A CN 1978959 A CN1978959 A CN 1978959A
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- CN
- China
- Prior art keywords
- end socket
- hole
- expansion valve
- jut
- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2341/00—Details of ejectors not being used as compression device; Details of flow restrictors or expansion valves
- F25B2341/06—Details of flow restrictors or expansion valves
- F25B2341/068—Expansion valves combined with a sensor
- F25B2341/0683—Expansion valves combined with a sensor the sensor is disposed in the suction line and influenced by the temperature or the pressure of the suction gas
Abstract
The invention relates to thermostatic expansion valve. It includes one air box head set on the valve body to control secondary refrigerant flow rate. The air box head has sealed chamber formed by diaphragm and outer wall, realize sealing by filling into secondary refrigerant from the hole. Its features are that the hole is set at the bottom of out wall cove; end plate is discoid and set jut which is connected with the bottom to seal the hole by electric resistance welding; cove inner clearance is formed around the end plate. The end plate of the invention is set clearance and connected with the cove of the air box head out wall which can process welding between them without electrical on-state. Thus it can prevent poor bonding, proof strength under-capacity.
Description
Technical field
The present invention relates to heating power expansion valve, in particular for the heating power expansion valve of car air-conditioner refrigeration system.
Background technique
The heating power expansion valve that is used for freeze cycle is of a great variety, as the flat 8-226567 communique of JP-, this kind heating power expansion valve, it comprises following: the high pressure coolant path of refrigerant inflow evaporator and flow out the low pressure refrigerant path of refrigerant from vaporizer, be provided with the valve body of valve opening in the way of above-mentioned high pressure refrigerant flow, by contacting or leave the valve opening of this valve body, thereby change the valve hole part of this valve opening aperture, come the diaphragm of actuating valve core components by drive link for the action of control valve body, have the sealed chamber of the temperature gas of filling this diaphragm isolation and the pressure equalizing chamber that communicates with the low pressure refrigerant stream, be used for the air tank head of gas phase refrigerant of perception valve body, from hole that the outer wall of air tank head forms after sealed chamber is filled temperature gas, in the state lower seal that keeps the filling outer cinclides structure of end socket.
In the above-mentioned heating power expansion valve, seal the hole of outer wall by end socket, then end socket reliably will be welded on the hole, obviously, weld strength is crucial reliably.
To this, talked about in the former heating power expansion valve, for the hole of outer wall, be by being welded on conical surface contact and carrying out projection welding of end socket, simultaneously, limit weld length; But,, form jut and coniform on the end socket, and the hole of outer wall is towards the manufacturing procedure complexity of the downward-sloping formation periphery of central direction in order to constitute welding conical surface portion.
In addition, talked about in the former heating power expansion valve, use the end socket of spherical shape, the EDGE CONTACT portion of the peritreme portion of outer wall carries out the salient point weldering, and needs to implement the lip part electricity that is connected with the sphere portion of above-mentioned end socket is ironed the secondary welding of weldering.As the flat 6-185833 communique of JP.
In addition, when adopting above-mentioned spherical shape end socket and hole to weld, end socket can appear.As: the JP-2001-116401 communique.
According to the above:
In the heating power expansion valve in the past,, form jut and coniform on the end socket, and the hole of outer wall is towards the manufacturing procedure complexity of the downward-sloping formation periphery of central direction in order to constitute welding conical surface portion.
Adopted the heating power expansion valve scheme of secondary welding, projection welding is welded along the full Zhou Jinhang of sphere, may cause the weld strength deficiency.
And the hole of outer wall and the welding of end socket may appear in former heating power expansion valve, reach the stable relatively more difficult problem of jointing state.
In addition, when outer cinclides and end socket welding, there is the inadequate possibility of soldering reliability in former heating power expansion valve.
In addition, inhomogeneous when the end socket of spherical shape tilts welding with contacting of hole, failure welding may appear.
Summary of the invention
The technical assignment of the technical problem to be solved in the present invention and proposition provides a kind of hole of the outer wall that forms the temperature-sensitive chamber, and the welding of the end socket of the temperature gas in this hole reaches stable jointing state with filling into, and by reliably carrying out of this welding, prevent failure welding, reliability ground improves the heating power expansion valve of weld strength.For this reason, the present invention is by the following technical solutions:
A kind of heating power expansion valve, it comprises that one is configured in and passes through the actuating valve core components action air tank head with the cold medium flux of control inflow evaporator on the valve body, this air tank head have the sealed chamber that surrounds by barrier film and outer wall and by the hole on the end socket sealing outer wall so that the filled refrigerant that is filled in by this hole in the sealed chamber is realized sealing; It is characterized in that: described hole is arranged on the bottom of outer wall recess, and end socket is in the form of annular discs and be provided with jut, and described jut and described bottom connection also seal above-mentioned hole by resistance welding; And around end socket, be formed on the gap in the above-mentioned recess.
According to this kind heating power expansion valve, end socket is in the form of annular discs, be formed with the above-mentioned end socket of jut on the face on its one side in above-mentioned recess the time, because the formation gap, side of the circumferential surface of above-mentioned recess and above-mentioned end socket, can avoid at above-mentioned jut contacting with above-mentioned bottom when welding, produce electrically conducting between the two, and can guarantee the easier configuration stably of above-mentioned end socket, so provide a kind of welding reliable, eliminated the not enough problem of weld strength, the heating power expansion valve of high reliability.And can concentrate the energy of above-mentioned jut welding, weld realize energy-conservation.
The present invention also comprises following additional technical feature:
Described end socket has the protuberance that inserts in the described hole, and described jut forms along the periphery of described protuberance.
Described jut has the par, and contacts welding with described base plane.
Described end socket has the protuberance that inserts in the described hole, and described jut forms along the periphery of described protuberance.
Described jut is the edge part shape, and described edge part pushes up mutually with described bottom, welds.
Described end socket has the protuberance that inserts in the described hole, and described jut forms along the periphery of described protuberance.
Be filled with preservative in the described gap.
Additional technical feature in view of the above:
Because jut is the edge part shape, contact with the base plane of recess, so the situation that does not exist end socket to tilt.Therefore, can stably be disposed, be realized reliably welding, be avoided failure welding.
Because the end socket jut is the edge part shape, edge part pushes up mutually with the bottom of recess.Therefore, end socket is fixed on recess highly stablely, improves the energy concentration ability both are implemented resistance welding.
Because the bottom in the recess on the outer wall is provided with the hole, end socket just is arranged in this recess, the outer wall surface welding of the jut of end socket and protuberance bottom, and both welding can reliably be carried out, and therefore, can prevent failure welding.
Because be formed with protuberance on the end socket, the periphery of this protuberance is provided with jut, protuberance can insert the hole on the above-mentioned recess, and end socket just can be guiding by protuberance, and therefore, end socket can stably contact reliably with recess and weld during resistance welding.
And according to this heating power expansion valve, preservative can be filled in the gap of end socket and recess, therefore can avoid ponding in this gap, prevents corrosion.
Heating power expansion valve of the present invention, end socket are gapped and join at the recess of air tank head outer wall, are easy to configuration, so avoided end socket and outer wall electrically conducting between the two, weld, so can prevent failure welding, the proof strength deficiency.
In the heating power expansion valve among the present invention, jut is arranged on the end socket, and be arranged on the bottom in the recess, stably contact, and implement resistance welding, avoid strength deficiency, improve reliability so can guarantee above-mentioned end socket.
Below in conjunction with embodiment to the present invention to more detailed description.
Description of drawings
Fig. 1: the longitudinal section of a kind of mode of execution of heating power expansion valve of the present invention.
Fig. 2: the enlarged view of air tank head shown in Fig. 1.
Fig. 3: the enlarged view of end socket shown in Fig. 1.
The worm's eye view of Fig. 4: Fig. 3.
Fig. 5: the another kind of end enclosure structure enlarged view of Fig. 1 mode of execution.
The worm's eye view of Fig. 6: Fig. 5.
Fig. 7: a kind of view when air tank head shown in Figure 2 forms the gap.
Fig. 8: the phase diagram of filling preservative in the gap shown in Figure 7.
Embodiment
Embodiment one:
Fig. 1 has described air conditioner for motor vehicle etc. and has been arranged on heating power expansion valve in the freeze cycle.Its valve body 1 is provided with liquid cooling matchmaker's the high pressure refrigerant flow 2 of circulation input vaporizer and the low pressure refrigerant stream 3 that flows out from vaporizer, and the valve opening 4 that is made of the path throttle orifice is arranged in the way in the high pressure refrigerant flow 2.Therefore flow into the liquid coolant of high pressure refrigerant flow 2 from liquid-storage container (not having diagram),, flow into path 21 by the smaller valve opening 4 disconnected thermal expansions of flow path area.The aperture portion of the refrigerant inflow side of above-mentioned valve opening 4 forms valve seat, at this valve opening valve seat place, by spherical valve hole part 5 near or leave the aperture that changes valve opening 4.Above-mentioned valve hole part 5 is supported by supporting base 7, this supporting base 7 and adjust support compressed lines spring 9 between the nut 8 and with valve hole part 5 to closing valve direction pretension.
The outer wall 14 that diaphragm 6 its peripheral parts are configured gas tank portion 10 is clipped in the middle with lower wall 18, welds with weld part 19 simultaneously.Therefore, outer wall 14 forms sealed chamber 12 with diaphragm 6.Lower wall 18 screws togather with the opening portion on valve body 1 top between between the valve body upper end by " zero " shape circle.
Transmitting seat 101 actions that are used to transmit diaphragm 6, works as the stopper of diaphragm 6 in its top, and its periphery is supported by lower wall 18 and leads.
The top of transmission rod 102 is inserted and is transmitted seat 101 bottoms, and conflicting on spherical valve hole part 5 in the lower end of transmission rod 102, with the Spring balanced of compressed lines spring 9 valve hole part 5 is remained near the valve opening 4.
Transmission rod 102 passes the hole 11 of valve body 1, and " zero " shape circle 110 is housed in the hole 11, and " zero " shape is enclosed 110 upsides retainer ring 111 also is housed, and is used for preventing moving of " zero " shape circle 110.
As shown in Figure 2, the outer wall 14 that is made of metal such as stainless steel passes through upward slope portion 142, forms central part 141, and this central part constitutes par 143.
On the par 143 of outer wall 14, be provided with by the recess 15 that is round shape, on the plane bottom 151 in the recess of this recess 15, be provided with the hole 152 that communicates with sealed chamber 12 at the central position place.
Above-mentioned discoid end socket 16 as shown in Figure 3, the face 16e of downside is provided with jut 16a, forms the protuberance 16b of one on the central position of jut 16a, thereby forms the step 16c with end socket 16 one.Protuberance 16b and jut 16a also can form split with above-mentioned end socket.
The step 16c top 16d of jut 16a is a tabular surface.
According to above-mentioned end socket 16, the protuberance 16b of end socket 16 is inserted in the hole that forms on the bottom 151 of recess 15 of outer wall 14, end socket 16 is configured in guide portions in the recess 15 when promptly bringing into play leading role, the bottom connection of the top 16d of above-mentioned step 16c and the recess 15 of above-mentioned outer wall 14 touches, above-mentioned end socket 16 combines with outer wall 14, form as shown in Figure 2 and recess 15 circumference between gap L.Therefore, end socket 16 does not tilt, and can reliablely and stablely combine with outer wall 14.The result, during both resistance welding, can avoid at above-mentioned jut and contacting with above-mentioned bottom when welding, produce electrically conducting between the two, energy is concentrated, implement reliable welding, thereby can reliably carry out, prevent end socket and 16 and the generation of the failure welding in the hole 152 of outer wall 14 because of the welding of guaranteeing both.
Fig. 4 be showed among Fig. 3 in order to make the combining shown in Fig. 3 arrow R direction of end socket in the form of annular discs 16 and outer wall 14, its face 16e on one side goes up protuberance 16b that forms and the jut 16a (step 16d) that forms thereof around it.
Embodiment two:
Discoid end socket as shown in Figure 5, the face 16e of its downside is provided with jut 16a, jut 16a be located at the protuberance 16b that forms one on the central position of end socket 16 this face 16e around, as edge part 6f, with the integrated configuration of end socket.Protuberance 16b and jut 16a also can form split with above-mentioned end socket.
According to above-mentioned end socket 16, the protuberance 16b of end socket 16 is inserted in the hole that forms on the bottom 151 of recess 15 of outer wall 14, when bringing into play leading role in the recess 15 for end socket 16 is configured in, the bottom connection of the recess 15 of the front end of above-mentioned flange 6f and above-mentioned outer wall 14 touches, and above-mentioned end socket 16 combines with outer wall 14.Therefore, end socket 16 can be stablized and firmly combine with outer wall 14.As a result, during both resistance welding, energy is concentrated, implemented reliably welding, thereby can reliably carry out, prevent the generation of failure welding, thereby make end socket 16 can seal the hole 152 of outer wall 14 because of the welding of guaranteeing both.
Shown in Figure 6 for discoid end socket 16 is fixed on the outer wall 14, as the arrow R direction of Fig. 5, protuberance 16b that its face 16e on one side is provided with and the jut 16a (edge part 16c) that forms on every side thereof.
In above-mentioned Fig. 5 and the embodiment of the present invention shown in Figure 6, when disposing Fig. 3 or end socket 16 shown in Figure 5 in the recess 15 on the outer wall 14, form as shown in Figure 2 gapped equally, reach same effect with recess 15.
Concrete, among above-mentioned two embodiments, the diameter of setting the large-diameter portion 16g of end socket 16 is for example 5.57mm, above-mentioned recess is 6.2mm for example, forms above L.
According to the heating power expansion valve of above-mentioned mode of execution, there is the gap in end socket 16 at 15 of the recesses of outer wall 14, so jut 16a and bottom 151 join when carrying out resistance welding, electrically conducting appears in side 16i and 153 of recess 15 inner faces that can avoid end socket 16.Therefore, in the time of can preventing bottom surface 151 welding of the jut 16a that contacts and recess 15, because electric current is concentrated the failure welding of impaired appearance.
As a result, can implement reliable sealing, can prevent the failure welding that welded seal produces, improve reliability by both welding.
And, in the embodiments of the present invention, can in above-mentioned gap L (shown in Fig. 1,2,7), fill preservative, as injecting resin binder S; Thereby constitute structure shown in Figure 8.
Among Fig. 8, fill the state of fat tackiness agent in the gap L of end socket 16 and 15 maintenances of recess.According to this structure, can prevent that sealing enters to accumulate in gap L corrodes it.
Claims (7)
1, a kind of heating power expansion valve, it comprises that one is configured in and passes through the actuating valve core components action air tank head with the cold medium flux of control inflow evaporator on the valve body, this air tank head have the sealed chamber that surrounds by barrier film and outer wall and by the hole on the end socket sealing outer wall so that the filled refrigerant that is filled in by this hole in the sealed chamber is realized sealing; It is characterized in that: described hole is arranged on the bottom of outer wall recess, and end socket is in the form of annular discs and be provided with jut, and described jut and described bottom connection also seal described hole by resistance welding; And around end socket, be formed on the gap in the described recess.
2, heating power expansion valve according to claim 1 is characterized in that described end socket has the protuberance that inserts in the described hole, and described jut forms along the periphery of described protuberance.
3, heating power expansion valve according to claim 1 is characterized in that described jut has the par, and contacts welding with described base plane.
4, heating power expansion valve according to claim 3 is characterized in that described end socket has the protuberance that inserts in the described hole, and described jut forms along the periphery of described protuberance.
5, heating power expansion valve according to claim 1 is characterized in that described jut is the edge part shape, and described edge part pushes up mutually with described bottom, welds.
6, heating power expansion valve according to claim 5 is characterized in that described end socket has the protuberance that inserts in the described hole, and described jut forms along the periphery of described protuberance.
7, according to the described heating power expansion valve of any one claim of 1-6, it is characterized in that being filled with preservative in the described gap.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100618486A CN100473881C (en) | 2005-12-02 | 2005-12-02 | Heating-power expansion valve |
| JP2006239200A JP4891711B2 (en) | 2005-09-13 | 2006-09-04 | Temperature expansion valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100618486A CN100473881C (en) | 2005-12-02 | 2005-12-02 | Heating-power expansion valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1978959A true CN1978959A (en) | 2007-06-13 |
| CN100473881C CN100473881C (en) | 2009-04-01 |
Family
ID=38130219
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100618486A Active CN100473881C (en) | 2005-09-13 | 2005-12-02 | Heating-power expansion valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100473881C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102553855A (en) * | 2011-12-31 | 2012-07-11 | 慈溪市东南复合材料有限公司 | Cleaning process for air-conditioner thermostatic expansion valve air box |
| CN111868461A (en) * | 2018-03-20 | 2020-10-30 | 株式会社不二工机 | Power element and expansion valve with same |
| CN114576413A (en) * | 2020-12-02 | 2022-06-03 | 株式会社鹭宫制作所 | Valve device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3207716B2 (en) * | 1994-12-22 | 2001-09-10 | 株式会社不二工機 | Temperature expansion valve |
| JPH1089809A (en) * | 1996-09-18 | 1998-04-10 | Fuji Koki:Kk | Expansion valve |
| JP2001201212A (en) * | 2000-01-18 | 2001-07-27 | Fuji Koki Corp | Temperature expansion valve |
-
2005
- 2005-12-02 CN CNB2005100618486A patent/CN100473881C/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102553855A (en) * | 2011-12-31 | 2012-07-11 | 慈溪市东南复合材料有限公司 | Cleaning process for air-conditioner thermostatic expansion valve air box |
| CN102553855B (en) * | 2011-12-31 | 2014-03-12 | 慈溪市东南复合材料有限公司 | Cleaning process for air-conditioner thermostatic expansion valve air box |
| CN111868461A (en) * | 2018-03-20 | 2020-10-30 | 株式会社不二工机 | Power element and expansion valve with same |
| CN114576413A (en) * | 2020-12-02 | 2022-06-03 | 株式会社鹭宫制作所 | Valve device |
| CN114576413B (en) * | 2020-12-02 | 2023-07-18 | 株式会社鹭宫制作所 | Valve device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100473881C (en) | 2009-04-01 |
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| 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. Free format text: FORMER OWNER: ZHEJIANG SANHUA CLIMATE + APPLIANCE CONTROLS GROUP CO., LTD. Effective date: 20090612 |
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Effective date of registration: 20090612 Address after: Three flower Industrial Park, No. 21, 60 Avenue, Hangzhou economic and Technological Development Zone, Zhejiang 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: 312500 Patentee before: Sanhua Refrigeration Group Co., Ltd., Zhejang |
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| ASS | Succession or assignment of patent right |
Free format text: FORMER OWNER: ZHEJIANG SANHUA AUTO PARTS CO., LTD. Owner name: ZHEJIANG SANHUA AUTO PARTS CO., LTD. Free format text: FORMER OWNER: ZHEJIANG SANHUA AUTOMOBILE CONTROL SYSTEM CO., LTD. Effective date: 20110516 |
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Free format text: CORRECT: ADDRESS; FROM: 310018 SANHUA INDUSTRIAL PARK, NO. 60, 21ST STREET, ECONOMIC AND TECHNOLOGICAL DEVELOPMENT ZONE, HANGZHOU CITY, ZHEJIANG PROVINCE TO: 310018 NO. 60, 21ST STREET, ECONOMIC AND TECHNOLOGICAL DEVELOPMENT ZONE, HANGZHOU CITY, ZHEJIANG PROVINCE |
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| TR01 | Transfer of patent right |
Effective date of registration: 20110516 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. |
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Owner name: ZHEJIANG SANHUA AUTO PARTS STOCK CO., LTD. Free format text: FORMER NAME: ZHEJIANG SANHUA AUTO PARTS CO., LTD. |
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| 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. |
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| 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. |
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| 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. |