CN100339621C - Direct-acting triple solenoid valve - Google Patents
Direct-acting triple solenoid valve Download PDFInfo
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- CN100339621C CN100339621C CNB200510048995XA CN200510048995A CN100339621C CN 100339621 C CN100339621 C CN 100339621C CN B200510048995X A CNB200510048995X A CN B200510048995XA CN 200510048995 A CN200510048995 A CN 200510048995A CN 100339621 C CN100339621 C CN 100339621C
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- electromagnetic valve
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Abstract
The present invention relates to a direct acting three-way electromagnetic valve. The existing three-way electromagnetic valve is provided with only one connecting pipe for high-pressure refrigerants to enter under the condition of not affecting the switch of the opening and closing of two valve ports, so the existing three-way electromagnetic valve can not realize various circulating modes. The direct acting three-way electromagnetic valve of the present invention comprises a coil and a valve seat respectively connected with the upper part and the lower part of a bushing. A sealing head, core iron and a restoring spring positioned between the sealing head and the core iron are orderly arranged in the bushing from top to bottom. An upper valve port is arranged on the sealing head, and the sealing head is connected with a connecting pipe. A lower valve port is arranged on the valve seat, and the valve seat is connected with two connecting pipes. The direct acting three-way electromagnetic valve is characterized in that the core iron comprises upper core iron and lower core iron connected with the upper core iron. An upper spring and a lower spring are respectively arranged in the upper core iron and the lower core iron. An isolating component positioned on the core iron is arranged between the two springs. Both the outer end surfaces of the two springs are provided with sealing plugs matched with the valve ports which correspond to the two springs. The direct acting three-way electromagnetic valve realizes that both of the connecting pipes can cause high-pressure refrigerants to enter without affecting the switch of the opening and the closing of the two valve ports, and realizes various circulating routes for a valve body.
Description
Technical field
The present invention relates to control the solenoid valve of refrigerant circulation, specifically a kind of straight moving type three-way electromagnetic valve.
Background technique
At present, a kind of straight moving type three-way electromagnetic valve in the refrigerated air-conditioning system (shown in Fig. 1～2), it comprises and being connected on the sleeve pipe, the coil of bottom and valve seat, end socket is arranged in the sleeve pipe from top to bottom successively, core iron and be positioned at end socket and core iron between returning spring, the built-in spring of core iron, there is sealing plug at the two ends of spring, last valve port is arranged on the end socket and be connected with and take over 1 ', lower valve port is arranged on the valve seat and be connected with adapter 2 ' and adapter 3 ', concrete current intelligence is as follows: when coil blackout, last valve port is in opening state, and refrigerant enters from taking over 3 ', because lower valve port is in closed condition, refrigerant flows out from taking over 1 '; When coil electricity, last valve port is in closed condition, and lower valve port is in opening state, and refrigerant enters from taking over 3 ', flows out from taking over 2 '.The shortcoming of this kind solenoid valve is: one, have only adapter 3 ' can advance the high pressure refrigerant, take over 1 ' and can not advance the high pressure refrigerant.Take over 1 ' during outage and can advance the high pressure refrigerant, but when the switching of two valve ports switchings is carried out in energising, because the spring force of existing structure medi-spring is less, can't overcome the pressure of high pressure refrigerant, the high pressure refrigerant that is positioned at adapter 1 ' is easy to push open valve port, close lower valve port, do not reach the purpose that two valve ports switch, thereby cause the solenoid valve can't proper functioning.Certainly, theoretically, the spring force (promptly adding bulky spring) that increases spring is feasible, adding bulky spring will inevitably increase the consumption of power, owing to be subjected to the restriction of the existing power of solenoid valve own, power consumpiton cross conference cause core iron can not with the end socket adhesive, so that the spring force of spring can not increase is more, be difficult to reach the requirement of actual required spring force.Two, owing to have only an adapter height to compress into refrigerant, cause flow route single, during outage, flow route is for taking over 3 ' → 1 '; During energising, flow route is for taking over 3 ' → 2 '.
Summary of the invention
Technical problem to be solved by this invention is the defective that overcomes above-mentioned prior art, provides a kind of two adapters can both advance the three-way magnetic valve of high pressure refrigerant and does not influence the switching that two valve ports open and close, to realize the multiple flow route of valve body.Further purpose of the present invention is that a buffer structure is set on core iron, alleviates the impact force of sealing plug to valve port, to prolong the working life of valve body.
The technical solution adopted in the present invention is as follows: straight moving type three-way electromagnetic valve, comprise and being connected on the sleeve pipe, the coil of bottom and valve seat, end socket is arranged in the sleeve pipe from top to bottom successively, core iron and be positioned at end socket and core iron between returning spring, last valve port is arranged on the described end socket and be connected with an adapter, lower valve port is arranged on the valve seat and be connected with two adapters, it is characterized in that described core iron comprises core iron and connected core iron down, on, following core iron is as a mass motion, be equipped with upper spring and lower spring in both respectively, on, the spring force of two springs is not of uniform size down, be provided with a separator that is positioned on the core iron between two springs, the sealing plug that cooperates with its corresponding valve port is all arranged on the exterior edge face of two springs.The present invention is divided into two springs that spring force is not of uniform size with a spring in the existing structure, and the spring force of upper spring is bigger, in order to overcome the pressure of high pressure refrigerant, promotes sealing plug when energising, and last valve port is sealed; The spring force of lower spring is less, need not overcome the pressure of high pressure refrigerant, plays the effect of buffering.Because upper spring is wanted much shorter than whole spring in the existing structure, the present invention's overstriking upper spring in existing solenoid valve power range is fully feasible, be enough to overcome the pressure of high pressure refrigerant, realized that two adapters can both advance the purpose of high pressure refrigerant, and do not influence the switching that two valve ports open and close.Two springs separate by separator, the spring force of upper and lower spring are not disturbed mutually, execution separately.Placements such as last core iron can adopt with following core iron and be threaded, interference fit is connected, riveted joint or welding.
Described straight moving type three-way electromagnetic valve, described separator can be positioned at the bulge loop that forms on pad between upper and lower core iron or the core iron inwall for one, and the present invention avoids the interference between upper and lower spring by establishing pad or bulge loop in two spring junctions.
Described straight moving type three-way electromagnetic valve, the upper end surface of last core iron forms a small boss, and the place, lower end surface of following core iron forms a small boss.When sealing plug contacts with valve port and produces deformation, small boss and end socket or valve seat clash into, this moment, spring played buffer function, the cooperation of small boss and spring has formed buffer structure, eliminated most of impact force, thereby alleviated the sealing plug that moves on impact force greatly, the life-span of valve body can be reached 3,500 ten thousand times valve port.
Described straight moving type three-way electromagnetic valve, the sidewall of following core iron is provided with the radial equilibrium hole, in order to the refrigerant pressure in the balance valve body.
The present invention has the moving up and down of core iron of two springs and two sealing plugs by controlling inside, has realized that two adapters can both advance the high pressure refrigerant, and has not influenced the switching that two valve ports open and close, and has realized the multiple flow route of valve body; Small boss and spring cooperate the buffer structure that forms, and have alleviated the impact force of sealing plug to valve port greatly, have prolonged the working life of valve body, and the life-span of valve body is reached 3,500 ten thousand times.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples.
Structural representation when Fig. 1 cuts off the power supply for existing direct action solenoid valve.
Structural representation when Fig. 2 switches on for existing direct action solenoid valve.
Fig. 3 is a structural representation of the present invention (when promptly cutting off the power supply).
Structural representation when Fig. 4 switches on for the present invention.
Fig. 5 is a kind of structure enlarged view of core iron of the present invention.
Fig. 6 is the another kind of structure enlarged view of core iron of the present invention.
Among the figure, 1～coil, 2～adapter A, 3～end socket, 4～returning spring, 5～sleeve pipe, 6～upward valve ports, 7～valve seat, 8～adapter B, 9～adapter C, 10～small boss, 11～sealing plug, 12～following core iron, 13～lower spring, 14～pad, 15～upper spring, 16～upward core irons, 17～lower valve port, 18～equalizing orifice.
Embodiment
Straight moving type three-way electromagnetic valve shown in Fig. 2-5, comprise and being connected on the sleeve pipe 5, the coil 1 of bottom and valve seat 7, end socket 3 is arranged in the sleeve pipe 5 from top to bottom successively, last core iron 16, following core iron 12 and be positioned at end socket 3 and the returning spring 4 of 16 of last core irons, have valve port 6 on the end socket 3 and be connected with and take over A2, have lower valve port 17 on the valve seat 7 and be connected with and take over B8, C9, last core iron 16 is threaded with following core iron 12 usefulness and forms, the bottom employing riveted joint sealing that is spirally connected and locates, be equipped with upper spring 15 and lower spring 13 in both respectively, have one to be positioned between two springs, on the exterior edge face of pad 14, two springs between following core iron the sealing plug 11 that cooperates with its corresponding valve port is arranged all.The upper end surface of last core iron 16 forms a small boss 10, and the place, lower end surface of following core iron 12 also forms a small boss 10, and radial equilibrium hole 18 is arranged on the sidewall of following core iron 12.During coil blackout, under the effect of returning spring 4, lower valve port 17 is in closed condition, and last valve port 6 is in opening state; During coil electricity, make core iron 16 and end socket 3 adhesives under the effect of electromagnetic force, last valve port is closed, and core iron 12 moved upward together under last core iron 16 was with simultaneously, and lower valve port 17 is opened.
Flow route can be divided into following three kinds of situations: 1) take over A and advance refrigerant, under the off-position, lower valve port is closed, and takes over A → B circulation.2) take over B and advance refrigerant, during coil blackout, lower valve port is closed, and takes over B → A circulation; Under the "on" position, last valve port is closed, and takes over B → C circulation.3) take over A, B and all advance refrigerant, under the off-position, lower valve port is closed, and does not have refrigerant to flow out, and valve body can be used as and was the normally closed solenoid valve use this moment; Under the "on" position, take over B → C circulation, last valve port is closed.When the pressure in taking over A was higher than setting pressure, last valve port was opened, and laid down a part of pressure of taking in the A, and the pressure in taking over A is during less than setting pressure, and last valve port is closed, so valve body can be used as unloading valve (being safety valve) use.
Be that with embodiment 1 difference the core iron and the place of being spirally connected of following core iron adopt glue sealing (as shown in Figure 6).
Claims (5)
1, straight moving type three-way electromagnetic valve, comprise and being connected on the sleeve pipe (5), coil of bottom (1) and valve seat (7), end socket (3) is arranged in the sleeve pipe (5) from top to bottom successively, core iron and be positioned at returning spring (4) between end socket (3) and core iron, have valve port (6) on the described end socket (3) and be connected with an adapter, have lower valve port (17) on the valve seat (7) and be connected with two adapters, it is characterized in that described core iron comprises core iron (16) and connected core iron (12) down, on, following core iron is as a mass motion, be equipped with upper spring (15) and lower spring (13) in both respectively, on, the spring force of two springs is not of uniform size down, be provided with a separator (14) that is positioned on the core iron between two springs, the sealing plug (11) that cooperates with its corresponding valve port is all arranged on the exterior edge face of two springs.
2, straight moving type three-way electromagnetic valve according to claim 1 is characterized in that described separator (14) is one to be positioned at the bulge loop that forms on pad between upper and lower core iron or the core iron inwall.
3, straight moving type three-way electromagnetic valve according to claim 1 and 2 is characterized in that described upper end surface of going up core iron (16) forms a small boss (10).
4, straight moving type three-way electromagnetic valve according to claim 1 and 2 is characterized in that the place, lower end surface of described core iron (12) down forms a small boss (10).
5, straight moving type three-way electromagnetic valve according to claim 1 and 2 is characterized in that the described sidewall of core iron (12) down is provided with radial equilibrium hole (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200510048995XA CN100339621C (en) | 2005-01-24 | 2005-01-24 | Direct-acting triple solenoid valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200510048995XA CN100339621C (en) | 2005-01-24 | 2005-01-24 | Direct-acting triple solenoid valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1811242A CN1811242A (en) | 2006-08-02 |
| CN100339621C true CN100339621C (en) | 2007-09-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB200510048995XA Active CN100339621C (en) | 2005-01-24 | 2005-01-24 | Direct-acting triple solenoid valve |
Country Status (1)
| Country | Link |
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| CN (1) | CN100339621C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7509948B1 (en) * | 2007-10-01 | 2009-03-31 | Caterpillar Inc. | Variable displacement pump with an anti-stiction device |
| CN102828861A (en) * | 2012-09-01 | 2012-12-19 | 黄山市汽车电器股份公司 | Electromagnetic valve and fuel system employing electromagnetic valve |
| CN112253804A (en) * | 2020-09-28 | 2021-01-22 | 宁波市安利特机械有限公司 | Integrated electromagnetic pilot head with valve body |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4242116A (en) * | 1977-05-24 | 1980-12-30 | Bosch-Siemens Hausgerate Gmbh | Magnetic valve, especially three-way valve as a switching device for multi-temperature cooling apparatus with only one refrigeration machine |
| CN2064450U (en) * | 1990-03-10 | 1990-10-24 | 广州金星仪器厂 | Electromagnetic valves using diaphragms |
| CN2142517Y (en) * | 1992-10-07 | 1993-09-22 | 王洪有 | Automatically controlled three-position, three-way electromagnetic valve for refrigerator system |
| JPH06221461A (en) * | 1993-01-26 | 1994-08-09 | Keihin Seiki Mfg Co Ltd | Three way solenoid valve |
| JPH1019154A (en) * | 1996-07-02 | 1998-01-23 | Saginomiya Seisakusho Inc | Three-way solenoid valve |
| CN1233721A (en) * | 1998-04-28 | 1999-11-03 | 东芝株式会社 | Electromagnetic valve |
| JP2002181210A (en) * | 2000-12-19 | 2002-06-26 | Ckd Corp | Solenoid three-way valve for low pressure water |
| CN2597909Y (en) * | 2003-02-19 | 2004-01-07 | 陆惠兴 | Electromagnetic valve for refrigerator |
-
2005
- 2005-01-24 CN CNB200510048995XA patent/CN100339621C/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4242116A (en) * | 1977-05-24 | 1980-12-30 | Bosch-Siemens Hausgerate Gmbh | Magnetic valve, especially three-way valve as a switching device for multi-temperature cooling apparatus with only one refrigeration machine |
| CN2064450U (en) * | 1990-03-10 | 1990-10-24 | 广州金星仪器厂 | Electromagnetic valves using diaphragms |
| CN2142517Y (en) * | 1992-10-07 | 1993-09-22 | 王洪有 | Automatically controlled three-position, three-way electromagnetic valve for refrigerator system |
| JPH06221461A (en) * | 1993-01-26 | 1994-08-09 | Keihin Seiki Mfg Co Ltd | Three way solenoid valve |
| JPH1019154A (en) * | 1996-07-02 | 1998-01-23 | Saginomiya Seisakusho Inc | Three-way solenoid valve |
| CN1233721A (en) * | 1998-04-28 | 1999-11-03 | 东芝株式会社 | Electromagnetic valve |
| JP2002181210A (en) * | 2000-12-19 | 2002-06-26 | Ckd Corp | Solenoid three-way valve for low pressure water |
| CN2597909Y (en) * | 2003-02-19 | 2004-01-07 | 陆惠兴 | Electromagnetic valve for refrigerator |
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| Publication number | Publication date |
|---|---|
| CN1811242A (en) | 2006-08-02 |
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Effective date of registration: 20170223 Address after: 312500 Xinchang, Zhejiang province Qixing street under the village of Liquan Patentee after: ZHEJIANG SANHUA CLIMATE AND APPLIANCE CONTROLS GROUP Co.,Ltd. Address before: 312500 Zhejiang County in Xinchang Province town of Liquan Patentee before: ZHEJIANG SANHUA Co.,Ltd. |
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| TR01 | Transfer of patent right |
Effective date of registration: 20220810 Address after: 312500 Daming new area, Zhejiang Xinchang Economic Development Zone, Xinchang County, Shaoxing City, Zhejiang Province Patentee after: Zhejiang Sanhua Commercial Refrigeration Co.,Ltd. Address before: 312500 xialiquan village, Qixing street, Xinchang County, Shaoxing City, Zhejiang Province Patentee before: ZHEJIANG SANHUA CLIMATE AND APPLIANCE CONTROLS GROUP Co.,Ltd. |
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| TR01 | Transfer of patent right |