CN2937693Y - Guide valve of electromagnet four-way change valve - Google Patents
Guide valve of electromagnet four-way change valve Download PDFInfo
- Publication number
- CN2937693Y CN2937693Y CN 200620122943 CN200620122943U CN2937693Y CN 2937693 Y CN2937693 Y CN 2937693Y CN 200620122943 CN200620122943 CN 200620122943 CN 200620122943 U CN200620122943 U CN 200620122943U CN 2937693 Y CN2937693 Y CN 2937693Y
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- Prior art keywords
- valve
- electromagnetism
- way change
- pilot valve
- core assembly
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Abstract
The utility model discloses an electromagnetic four-way reversing valve pilot valve, including a sleeve, an attractor welded at the one end of the sleeve, a valve seats used to connect with three capillaries is welded in the sleeve, and an iron core groupware arranged in the sleeve can carry through a left or right reciprocating movement by means of a spring and an electromagnetic coil. The two ends of the sleeve have openings, wherein, the one end is connected with the attractor by welding, and the another end of the sleeve is connected with an end closure pf the three capillaries. What the purpose of the utility model is to offer an electromagnetic four-way reversing valve pilot valve so as to resolve the technical issue that a further surface processing can be carried through after the valve seat is welded in the sleeve.
Description
Technical field
The utility model relates to a kind of electromagnetism four-way change-over valve pilot valve, the pilot valve of the electromagnetism four-way change-over valve that the particularly a kind of flow direction, realization refrigeration and heating mode that is used for heat pump type air conditioner change refrigeration agent changed.
Background technique
The electromagnetism four-way change-over valve is the important devices of heat pump type air conditioner, is applicable to central authorities, split, window air conditioner.The electromagnetism four-way change-over valve is to utilize the height pressure reduction in the system to drive the conversion that its action conversion realizes the refrigerant flow direction by pilot valve.
The structural principle of existing electromagnetism four-way change-over valve as shown in Figure 1.Existing electromagnetism four-way change-over valve comprises main valve 1, pilot valve 2 and electromagnetic coil 3.Pilot valve 2 comprises the sleeve pipe 206 of end sealing, and at sleeve pipe 206 openings one end welding attractor 21, sleeve pipe 206 inner chamber welding seat 24 have three little capilar bores side by side on the valve seat 24.Pilot valve 2 also comprises a core assembly 203, and this core assembly is done left and right sides to-and-fro motion under spring 22 and electromagnetic coil 3 effects.Drag movable valve block 25 to horizontally slip by the bracket that is riveted on the core assembly 203, be communicated with or close corresponding capilar bore, thereby realize the switching of refrigerant flow direction.
Because the pilot valve of said structure is at first because of the sealing of sleeve pipe 206 1 ends, valve seat 24 just can't further carry out surface Machining after being welded in the sleeve pipe 206 again.Therefore can't be good fit with slide block 25, thus the generation of pilot valve internal leakage caused.
Therefore, can further carry out surface Machining after how making valve seat be welded in the sleeve pipe, thereby make itself and slide block good fit, be the problem that needs solution at present.
Summary of the invention
The purpose of this utility model provides a kind of electromagnetism four-way change-over valve pilot valve, to solve the technical problem that can further carry out surface Machining after valve seat is welded in the sleeve pipe.
For solving the problems of the technologies described above, the utility model provides a kind of electromagnetism four-way change-over valve pilot valve, comprise sleeve pipe, be welded on the attractor of sleeve pipe one end, be welded on three valve seats capillaceous of connection in the sleeve pipe, and under spring and electromagnetic coil effect, do the reciprocating core assembly that is positioned at sleeve pipe in the left and right sides; Described sleeve pipe is the both ends open structure, end welding attractor, and the other end is welded to connect end cap capillaceous.
The utility model provides a kind of electromagnetism four-way change-over valve pilot valve, also comprises limit stoper, and described limit stoper is between core assembly and valve seat.
Described limit stoper is specially limited ring.
Described limited ring is fixed on the position of being close to valve seat between core assembly and the valve seat.
Described limited ring position is fixed on the core assembly.
Described limit stoper is specially limiting stopper, is positioned at valve seat one side.
Described limiting stopper is fixedlyed connected with valve seat.
Described limiting stopper and valve seat are overall structure.
Described core assembly adopts outer riveted structure to fixedly connected with bracket.
Offer corresponding described three capillary tubies of three Pin Zixing step holes on the described valve seat.
Because the utility model adopts the sleeve pipe of both ends open structure, sleeve pipe one end welding attractor, the sleeve pipe the other end is welded to connect end cap capillaceous.Before end cap and sleeve pipe welding, can further carry out surface Machining to the valve seat that is welded in the sleeve pipe, thereby make the no-float of valve seat and slide block surface of contact like this, effectively prevent the internal leakage of pilot valve.
Description of drawings
Fig. 1 is a prior art electromagnetism four-way change-over valve structural drawing;
Fig. 2 is the utility model application drawing;
Fig. 3 is the utility model electromagnetism four-way change-over valve pilot valve structural drawing;
Fig. 4 is the utility model core assembly structure figure;
Fig. 5 is the utility model core structure figure.
Embodiment
The utility model provides a kind of electromagnetism four-way change-over valve pilot valve, to solve the technical problem that can further carry out surface Machining after valve seat is welded in the sleeve pipe.
Specify embodiment of the present utility model below in conjunction with accompanying drawing.
Referring to Fig. 2 and Fig. 3, Fig. 3 is the utility model electromagnetism four-way change-over valve pilot valve structural drawing.Fig. 2 is the utility model application drawing, structural drawing when being specially the refrigeration cycle of the utility model electromagnetism four-way change-over valve pilot valve.
At first, the refrigeration cycle process of the utility model electromagnetism four-way change-over valve pilot valve:
When electromagnetic coil 3 is in off-position, the valve piece 25 of pilot valve 2 moves to left under pressure spring 22 drives, and high-pressure liquid enters right piston cavity 304 after entering capillary tube d.Left piston chamber 306 communicates with compressor by the S adapter that communicates with capillary tube S1 owing to communicate with capillary tube S1 again, owing to low-pressure fluid is discharged in machine suction by compression.At this moment produce pressure difference between left piston chamber 306 and the right piston cavity 304, piston and main slide valve 305 move to left, and E, S are taken over communicate, and D, C take over and communicate, and form refrigeration cycle.Double-headed arrow refers to the high-pressure liquid direction that flows among Fig. 3, and the single head arrow refers to the low-pressure fluid direction that flows.
The utility model electromagnetism four-way change-over valve pilot valve heat cyclic process:
When electromagnetic coil 3 is in "on" position, the valve piece 25 of pilot valve 2 is under the magnetic force that electromagnetic coil 3 produces, and the elastic force that overcomes pressure spring 22 moves right, and high-pressure liquid enters left piston chamber 306 after entering capillary tube 303.Right piston cavity 304 because and the low-pressure fluid that communicates of S1 pipe by compression machine aspirate and discharge.At this moment produce pressure difference between left piston chamber 306 and the right piston cavity 304, piston and main slide valve 305 move to right, and C, S are taken over communicate, and D, E take over and communicate, and form to heat circulation.
Specify the concrete structure of electromagnetism four-way change-over valve pilot valve described in the utility model below.
Referring to Fig. 3 to Fig. 5, Fig. 3 is the utility model electromagnetism four-way change-over valve pilot valve structural drawing; Fig. 4 is the utility model core assembly structure figure; Fig. 5 is the utility model core structure figure.
The utility model electromagnetism four-way change-over valve pilot valve comprises the cylinder-shaped sleeve 26 of both ends open, is welded with an end cap 28 at the one end, and end cap is welded with main valve D and takes over the d capillary tube that (high-voltage tube) is connected; Be welded with attractor 21 with divided magnetic ring structure at its other end.Sleeve pipe 26 is having the nearly leg-of-mutton through hole of a class near end cap 28 1 sides, capillary tube L, S1, valve seat 24 welding of R by having three through holes in this through hole and the sleeve pipe 26.Three through holes offering of valve seat 24 can be the small through hole of Pin Zixing, and three through holes also can be for being located along the same line.Between attractor 21 and valve seat 24, be provided with a core assembly that can freely horizontally slip 23.Electromagnetism four-way change-over valve pilot valve 2 described in the utility model also comprises limit stoper 29 between core assembly 23 and valve seat 24.Collision between the reducing 23a that limit stoper 29 can be avoided core assembly 23 and the valve seat 24 with contact, effectively protect the reducing 23a of core assembly 23.
The installation process of bracket 23d and iron core 23g is described below in conjunction with Fig. 4 and Fig. 5.
Fig. 5 is that the iron core 23g of the utility model core assembly 23 does not cooperate the design of part figure before installing with bracket 23d.
The iron core 23g of described core assembly 23 adopts outer riveted structure to fixedly connected with bracket 23d.At first the bracket 23d that has fixedly mounted shell fragment 23c is placed on the through hole of core assembly 23 from reducing 23a one side of core assembly 23, because the cross section of bracket 23d is a rectangular configuration, and the long edge lengths of the cross section of bracket 23d is greater than the diameter in the hole in the middle of the passage 23e, so bracket 23d can navigate to the position in the middle hole of passage 23e.And then this bracket of the inside riveted fixing of reducing 23a 23d.So just the bracket 23d that installs shell fragment 23c has been fixedly mounted on the core assembly 23.
First kind of mode of execution of the utility model: limit stoper 29 is specially limited ring.Limited ring can movablely move between core assembly 23 and valve seat 24.The thickness of limited ring is greater than the distance of the outstanding iron core side step of the reducing 23a of core assembly 23, and matches with valve piece 25 and three capillary tube L, S1 of valve seat 24 that match with valve piece 25, the position between the R on being installed in bracket 23d.Need satisfy following condition,, when the valve piece 25 of pilot valve 2 moves left to the limited ring restriction site under pressure spring 22 drives, make capillary tube L, S1 be in connected state when electromagnetic coil 3 is in off-position.When electromagnetic coil 3 is in "on" position, the valve piece 25 of pilot valve 2 when the elastic force that overcomes pressure spring 22 moves right, makes capillary tube S1, R be in connected state under the magnetic force that electromagnetic coil 3 produces.
Second kind of mode of execution of the utility model: relative first kind of mode of execution of the utility model, difference only is that limited ring is located between core assembly 23 and the valve seat 24, and is close to and is fixed on the valve seat 24.Limited ring can adopt modes such as welding to be fixed on the valve seat 24, can certainly adopt other ways of connecting to fix, as long as satisfy above-mentioned spacing condition.
The third mode of execution of the utility model: relative first and second kind of the utility model mode of execution, difference only is that limited ring is located between core assembly 23 and the valve seat 24, and is close to and is fixed on the core assembly 23.The limited ring of same this mode of execution can adopt modes such as welding to be fixed on the core assembly 23, can certainly adopt other ways of connecting to fix, as long as satisfy above-mentioned spacing condition.
The 4th kind of mode of execution of the utility model: first three plants mode of execution relative the utility model, and limit stoper 29 is specially limiting stopper, and limiting stopper can movablely move between core assembly 23 and valve seat 24, also can be fixed on the valve seat 24.The limiting stopper of same this mode of execution can adopt modes such as welding to be fixed on the valve seat 24, can certainly adopt other ways of connecting to fix, as long as satisfy above-mentioned spacing condition.
The utility model preferred implementation: relative the 4th kind of mode of execution of the utility model, limiting stopper and valve seat 24 are an overall structure, rather than process limiting stopper and fixedly connected with valve seat 24, can adopt whole mode of processing to process.Because sleeve pipe 26 is a round column structure, therefore be positioned at its inner valve seat 24 and be semi-cylindrical form, limiting stopper is the boss of semicircular ring shape.
The above only is a preferred implementation of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (10)
1, a kind of electromagnetism four-way change-over valve pilot valve comprises sleeve pipe, is welded on the attractor of sleeve pipe one end, is welded on three valve seats capillaceous of connection in the sleeve pipe, and does the reciprocating core assembly that is positioned at sleeve pipe in the left and right sides under spring and electromagnetic coil effect; It is characterized in that described sleeve pipe is the both ends open structure, end welding attractor, the other end is welded to connect end cap capillaceous.
2, electromagnetism four-way change-over valve pilot valve according to claim 1 is characterized in that, also comprise limit stoper, described limit stoper is between core assembly and valve seat.
3, electromagnetism four-way change-over valve pilot valve according to claim 2 is characterized in that described limit stoper is specially limited ring.
4, electromagnetism four-way change-over valve pilot valve according to claim 3 is characterized in that described limited ring is fixed on the position of being close to valve seat between core assembly and the valve seat.
5, electromagnetism four-way change-over valve pilot valve according to claim 3 is characterized in that, described limited ring position is fixed on the core assembly.
6, electromagnetism four-way change-over valve pilot valve according to claim 2 is characterized in that described limit stoper is specially limiting stopper, is positioned at valve seat one side.
7, electromagnetism four-way change-over valve pilot valve according to claim 6 is characterized in that described limiting stopper is fixedlyed connected with valve seat.
8, electromagnetism four-way change-over valve pilot valve according to claim 6 is characterized in that, described limiting stopper and valve seat are overall structure.
According to the arbitrary described electromagnetism four-way change-over valve pilot valve of claim 1 to 8, it is characterized in that 9, described core assembly adopts outer riveted structure to fixedly connected with bracket.
10, electromagnetism four-way change-over valve pilot valve according to claim 9 is characterized in that, offers corresponding described three capillary tubies of three Pin Zixing step holes on the described valve seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620122943 CN2937693Y (en) | 2006-08-04 | 2006-08-04 | Guide valve of electromagnet four-way change valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620122943 CN2937693Y (en) | 2006-08-04 | 2006-08-04 | Guide valve of electromagnet four-way change valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2937693Y true CN2937693Y (en) | 2007-08-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620122943 Expired - Fee Related CN2937693Y (en) | 2006-08-04 | 2006-08-04 | Guide valve of electromagnet four-way change valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2937693Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102200199A (en) * | 2010-03-22 | 2011-09-28 | 浙江三花制冷集团有限公司 | Electromagnetic valve connecting device, electromagnetic valve and heat exchange device |
| CN102200191A (en) * | 2010-03-22 | 2011-09-28 | 浙江三花制冷集团有限公司 | Reversing valve |
| CN102758936A (en) * | 2012-02-08 | 2012-10-31 | 浙江三花制冷集团有限公司 | Pilot valve of four-way reversing valve and machining method of pilot valve |
| CN101992355B (en) * | 2009-08-10 | 2013-10-23 | 浙江三花制冷集团有限公司 | Assembling and welding method of pilot valve part |
| CN103851222A (en) * | 2012-11-30 | 2014-06-11 | 浙江三花制冷集团有限公司 | Direct-acting four-way reversing valve and manufacturing method thereof |
| CN106051270A (en) * | 2016-07-05 | 2016-10-26 | 安徽天大电子科技股份有限公司 | Electromagnetic hot fluorine defrosting valve |
| CN106545679A (en) * | 2015-09-21 | 2017-03-29 | 浙江盾安禾田金属有限公司 | A kind of electromagnetism four-way reversing valve and pilot valve |
-
2006
- 2006-08-04 CN CN 200620122943 patent/CN2937693Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101992355B (en) * | 2009-08-10 | 2013-10-23 | 浙江三花制冷集团有限公司 | Assembling and welding method of pilot valve part |
| CN102200199A (en) * | 2010-03-22 | 2011-09-28 | 浙江三花制冷集团有限公司 | Electromagnetic valve connecting device, electromagnetic valve and heat exchange device |
| CN102200191A (en) * | 2010-03-22 | 2011-09-28 | 浙江三花制冷集团有限公司 | Reversing valve |
| CN102200199B (en) * | 2010-03-22 | 2015-05-06 | 浙江三花制冷集团有限公司 | Electromagnetic valve connecting device, electromagnetic valve and heat exchange device |
| CN102758936A (en) * | 2012-02-08 | 2012-10-31 | 浙江三花制冷集团有限公司 | Pilot valve of four-way reversing valve and machining method of pilot valve |
| CN103851222A (en) * | 2012-11-30 | 2014-06-11 | 浙江三花制冷集团有限公司 | Direct-acting four-way reversing valve and manufacturing method thereof |
| CN106545679A (en) * | 2015-09-21 | 2017-03-29 | 浙江盾安禾田金属有限公司 | A kind of electromagnetism four-way reversing valve and pilot valve |
| CN106051270A (en) * | 2016-07-05 | 2016-10-26 | 安徽天大电子科技股份有限公司 | Electromagnetic hot fluorine defrosting 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: DUNAN ARTIFICIAL ENVIRONMENTAL APPARATUS CO., LTD Free format text: FORMER OWNER: DUNAN PRECISION INDUSTRY GROUP CO., LTD., ZHEJIANG Effective date: 20080222 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20080222 Address after: Zhuji Industrial Zone, Zhejiang, China: 311835 Patentee after: Zhejiang Dun'an Artificial Environment Equipment Co., Ltd. Address before: Zhuji Industrial Zone, Zhejiang, China: 311835 Patentee before: Zhejiang Dun'an Precision Industries Group Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070822 Termination date: 20140804 |
|
| EXPY | Termination of patent right or utility model |