CN100476274C - Straight moving type three-way electromagnetic valve - Google Patents
Straight moving type three-way electromagnetic valve Download PDFInfo
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- CN100476274C CN100476274C CNB2006100065529A CN200610006552A CN100476274C CN 100476274 C CN100476274 C CN 100476274C CN B2006100065529 A CNB2006100065529 A CN B2006100065529A CN 200610006552 A CN200610006552 A CN 200610006552A CN 100476274 C CN100476274 C CN 100476274C
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- sealing plug
- valve
- core iron
- moving type
- way electromagnetic
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Abstract
The invention is a direct acting three-way valve, respectively arranging valve ports A and B on stoppers and valve seat at the two ends of a sleeve, arranging an iron core in a cavity between the two valve ports, where the iron core moves to and fro by the cooperation of return spring and electromagnetic coil to selectively close one valve port by seal stopper on it so as to make the other valve port turned on communicate with the outlet arranged on the valve seat, and a supporting spring is arranged in back of the seal stopper; and the invention is characterized in that: the back of at least one seal stopper is equipped with a sealed cavity and this seal stopper is made with a channel communicating with the corresponding valve port and the sealed cavity. And the invention can assure that the seal stoppers can effectively stop the valve ports and have certain buffering ability without designing springs of larger elasticity and increasing power of electromagnetic coil.
Description
Technical field
The present invention relates to a kind of solenoid valve of idle call, specifically a kind of straight moving type three-way electromagnetic valve of controlling the refrigerant circulating direction.
Background technique
At present, the straight moving type three-way electromagnetic valve of the use in the refrigerated air-conditioning system mostly is structure shown in Fig. 1,2, be on the end socket (3) at sleeve pipe (5) two ends and valve seat (7), a valve port to be set respectively, the core iron (10) of built-in two mouths of the cavity between two valve ports, it can move around under the coordinative role of returning spring and electromagnetic coil, and can optionally seal by the sealing plug on it, thereby the valve port of another unlatching is communicated with outlet on being arranged on valve seat (7), spring is arranged in the back support of described sealing plug.The work of this type of solenoid valve is as follows:
(1) A valve port high pressure: under the off-position, electromagnetic coil does not produce electromagnetic force, and the elastic force of returning spring is supported on the position that relies on the B valve port with core iron (10) and the B valve port is closed, and the A valve port communicates with outlet; Under the "on" position, electromagnetic coil produces electromagnetic force, and the elastic force that overcomes returning spring remains on the position that relies on the A valve port with core iron (10) and the A valve port is closed, and the B valve port communicates with outlet.
(2) B valve port high pressure: during coil blackout, electromagnetic coil does not produce electromagnetic force, and the elastic force of returning spring is supported on the position that relies on the B valve port with core iron (10) and the B valve port is closed, and the A valve port communicates with outlet; Under the "on" position, electromagnetic coil produces electromagnetic force, and the elastic force that overcomes returning spring remains on the position that relies on the A valve port with core iron (10) and the A valve port is closed, and the B valve port communicates with outlet.
(3) A valve port, B valve port high pressure all: under the off-position, electromagnetic coil does not produce electromagnetic force, and the elastic force of returning spring is supported on the position that relies on the B valve port with core iron (10) and the B valve port is closed, and the A valve port communicates with outlet; Under the "on" position, electromagnetic coil produces electromagnetic force, and the elastic force that overcomes returning spring remains on the position that relies on the A valve port with core iron (10) and the A valve port is closed, and the B valve port communicates with outlet.
The straight moving type three-way electromagnetic valve of said structure, when core iron (10) is moving around in the cavity between two valve ports under the coordinative role of returning spring and electromagnetic coil when sealing certain valve port, sealing plug is remained on power on this valve port from the spring that is supported on thereafter, and the medium that is closed the valve port end can act on the elastic force that sealing is offset the part supported spring beyond the Great Wall, especially when this end was high pressure, this counteracting was just serious more; Theoretically,, but strengthen the consumption that spring force will inevitably increase power, lose buffer function in the time of also can making sealing simultaneously, reduce the life-span of valve as long as there are enough spring forces can arrive sealing effect; But owing to be subjected to the restriction of the existing power of solenoid valve own, power consumpiton is excessive, also wastes energy, so the impossible unconfined increase of spring force, adopts this structure to be difficult to play in actual use effect.
Summary of the invention
The technical assignment of the technical problem to be solved in the present invention and proposition is to overcome in the prior art defective that the part elastic force of the spring that supports sealing plug is offset by pressure medium, provide a kind of straight moving type three-way electromagnetic valve, under the prerequisite that does not increase spring force and electromagnetic coil power, to guarantee effectively shutoff valve port and have certain buffer capacity of sealing plug.For this reason, the present invention takes following technological scheme:
Straight moving type three-way electromagnetic valve, be that a end at sleeve pipe is provided with end socket, have the A valve port on the end socket, the other end at sleeve pipe is provided with valve seat, have the B valve port on the valve seat, the cavity between two valve ports built-in-at the core iron that moves around under the coordinative role of returning spring and electromagnetic coil optionally to seal described two valve ports by A sealing plug on this core iron and B sealing plug, thereby the valve port of another unlatching is communicated with outlet on being arranged on valve seat, spring is arranged in the back support of described A sealing plug and B sealing plug; The rear portion that it is characterized in that at least one sealing plug on described core iron is provided with an enclosed cavity, and offers connection valve port corresponding with the sealing plug and the passage of described enclosed cavity beyond the Great Wall in sealing.
As the further of technique scheme improved and replenish, the present invention also comprises following additional technical feature:
Be provided with sealing configuration between described sealing plug that offers passage and the core iron.Guarantee the encapsulation of enclosed cavity, prevent that medium from not leaking because of the encapsulation of enclosed cavity is good.
Described sealing configuration is to be opened in the groove on the sealing plug side and to fill seal gease in this groove.
Described sealing configuration is the seal ring that is opened in the groove on the sealing plug side and is positioned at this groove.
Described sealing configuration is the spring sheet of being supported by catch that is arranged on sealing plug rear side, and the described spring that is used to support the sealing plug is supported on this spring sheet to the sealing plug application of force.
The end of described core iron is provided with the limitation part of spacing described sealing plug.
Described limitation part is the limiting holes sheet that is assemblied in the core iron end.
Described core iron is for dividing body structure, and described limitation part and core iron are structure as a whole.
The present invention is provided with enclosed cavity by the rear portion at sealing plug, and offers the connection valve port corresponding with the sealing plug and the passage of described enclosed cavity beyond the Great Wall in sealing.When the shutoff of sealing plug is on the valve port corresponding with it, promptly enter the enclosed cavity at sealing plug rear portion by passage from the medium of this valve port, thereby the pressure that makes medium act on the sealing plug is cancelled out each other, the elastic force that can guarantee to support the spring of sealing plug all is applied on the sealing plug, and do not need elastic design with this spring must more promptly can guarantee effectively shutoff valve port and have certain buffer capacity, the obvious power that does not yet need to increase electromagnetic coil of sealing plug.
The invention will be further described below in conjunction with drawings and Examples.
Description of drawings
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.
Fig. 4 realizes the schematic diagram of pressurized seal for the present invention
Fig. 5 is a kind of structural representation of core iron of the present invention.
Fig. 6 is another structural representation Fig. 2 of core iron of the present invention.
Fig. 7 is the third structural representation Fig. 3 of core iron of the present invention.
Fig. 8 is the 4th kind of structural representation Fig. 4 of core iron of the present invention.
Among the figure, the 1-coil, 2-A takes over, 3-end socket, 4-returning spring, the 5-sleeve pipe, the 6-A valve port, the 7-valve seat, 8-B takes over, and 9～C takes over, 10-core iron (body), the 11-B valve port, 12/12a/12b-supports spring, 13-A sealing plug, 14-B sealing plug, the 15-outlet, 16-passage, 17-enclosed cavity, 18-separator, 19-holds cover, 20-A/20B-groove, 21-grease, 22-seal ring, the 23-spring sheet, 24-catch, 25A/25B-limitation part, 26-axle sleeve.
Embodiment
Direct-acting triple solenoid valve as shown in Figure 3, comprise the end socket 3 and the valve seat 7 that are connected to sleeve pipe 5 upper and lower ends, put returning spring 4 between core iron 10 in the sleeve pipe 5 and the end socket 3, have A valve port 6 on the end socket 3 and connect A and take over 2, have B valve port 11, outlet 15 on the valve seat 7 and connect B adapter 8 respectively and C adapter 9; For the ease of A spring 12a and the B spring 12b that assembles A sealing plug 13, B sealing plug 14 within it and support them, core iron comprises body 10 and is assemblied in the end cover 19 of body 10 lower ends that A sealing plug 13 and B sealing plug 14 are corresponding with A valve port 6 and B valve port 11 respectively; Offering passage 16 on the A sealing plug 13 communicates with the enclosed cavity 17 of A sealing plug 13 rear ends.The key of this structure is enclosed cavity 17 except that gas-entered passageway (normally being opened in the axial groove of core iron body outer side surface) of structure, therefore between body 10 and end cover 19, dividing plate 18 is set, when coil 1 energising, electromagnetic force overcomes the elastic force of returning spring, in the process of core iron 10 and end socket 3 adhesives, can be divided into two stages, at first be that A valve port 6 contacts with A sealing plug 13, A spring 12a is compressed, then core iron 10 again with end socket 3 adhesives, advance high-pressure medium from A pipe 2 this moment, passage 16 by A sealing plug 13 makes the enclosed cavity 17 in the core iron 10 also become high pressure, thereby A sealing plug 13 is cancelled out each other at the pressure of axially suffered high-pressure medium, the elastic force that guarantees A spring 12a all is applied on the A sealing plug 13 so that A valve port 6 is sealed (see figure 4)s, therefore do not need elastic design with the A spring must more promptly can guarantee effectively shutoff A valve port and have certain buffer capacity, the obvious power that does not yet need to increase electromagnetic coil of A sealing plug.
Straight moving type three-way electromagnetic valve as shown in Figure 5 and embodiment's 1 difference be 10 of described core irons some, two blind holes are arranged on the core iron 10, inside is put A spring 12a and B spring 12b respectively, the outer end of two springs is supported A sealing plug 13, B sealing plug 14 respectively, and sealing plug is kept by the pad 20 that is riveted on the core iron end.Its working principle is the same, does not do at this and gives unnecessary details.
Straight moving type three-way electromagnetic valve as shown in Figure 6 and embodiment's 1 difference is to offer groove 20A on A sealing plug 13 cylindricals, scribble grease in the groove, the pressure that can reduce the core iron inner chamber spills around A sealing plug 13, like this with regard to essential structure the confined space 17 except that gas-entered passageway.Its working principle is the same, does not do at this and gives unnecessary details.
Straight moving type three-way electromagnetic valve as shown in Figure 7 and embodiment's 1 difference is that A sealing plug 13 cylindricals offer groove 20B, be provided with elastic sealing ring 22 in the groove 20B, make seal ring 22 remain tight the contact with core iron 10 endoporus, the pressure that can effectively reduce the core iron inner chamber spills around A sealing plug 13, like this with regard to essential structure the confined space 17 except that gas-entered passageway.Its working principle is the same, does not do at this and gives unnecessary details.
Straight moving type three-way electromagnetic valve as shown in Figure 8 and embodiment's 1 difference is that the below of A sealing plug 13 is provided with being compressed by axle sleeve 26 of spring sheet 23, spring sheet 23 all around, is supported with A spring 12a below and can protects spring sheet 23 not by the catch 24 of A spring 12a incised wound.This structure has almost completely been constructed a confined space 17 except that gas-entered passageway.Its working principle is the same, does not do at this and gives unnecessary details.
In the foregoing description, offer pressure compensation opening radially on the core iron because of B sealing plug place, consider locational restriction, on the B sealing plug, do not offer passage and enclosed cavity is set on core iron, and prompting according to the above embodiment of the present invention, obvious, when possessing the position, can be arranged to structure equally as the A sealing plug.
Claims (8)
1, straight moving type three-way electromagnetic valve, be that a end at sleeve pipe (5) is provided with end socket (3), have A valve port (6) on the end socket (3), the other end at sleeve pipe (5) is provided with valve seat (7), have B valve port (11) on the valve seat (7), the core iron that moves around under the coordinative role of returning spring (4) and electromagnetic coil (1) at the cavity between two valve ports built-in is optionally to seal described two valve ports by A sealing plug (13) on this core iron and B sealing plug (14), thereby the valve port of another unlatching is communicated with outlet (15) on being arranged on valve seat (7), spring is arranged in the back support of described A sealing plug (13) and B sealing plug (14); The rear portion that it is characterized in that at least one sealing plug on described core iron is provided with enclosed cavity (17), and offers the connection valve port corresponding with the sealing plug and the passage (16) of described enclosed cavity beyond the Great Wall in sealing.
2, straight moving type three-way electromagnetic valve according to claim 1 is characterized in that being provided with sealing configuration between described sealing plug that offers passage and core iron.
3, straight moving type three-way electromagnetic valve according to claim 2 is characterized in that described sealing configuration is to be opened in the groove (20A) on the sealing plug side and to fill out seal gease (21) in this groove.
4, straight moving type three-way electromagnetic valve according to claim 2 is characterized in that described sealing configuration is the seal ring (22) that is opened in the groove (20B) on the sealing plug side and is positioned at this groove.
5, straight moving type three-way electromagnetic valve according to claim 2, it is characterized in that described sealing configuration is the spring sheet of being supported by catch (24) (23) that is arranged on sealing plug rear side, the described spring that is used to support the sealing plug is supported on this catch (24) and goes up to the sealing plug application of force.
6,, it is characterized in that the end of described core iron is provided with the limitation part of spacing described sealing plug according to the described straight moving type three-way electromagnetic valve of 1～5 arbitrary claim.
7, straight moving type three-way electromagnetic valve according to claim 6 is characterized in that described limitation part (25A) is for being assemblied in the limiting holes sheet of core iron end.
8, straight moving type three-way electromagnetic valve according to claim 6 is characterized in that described core iron for dividing body structure, and described limitation part (25B) is structure as a whole with core iron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100065529A CN100476274C (en) | 2006-01-11 | 2006-01-16 | Straight moving type three-way electromagnetic valve |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610049048 | 2006-01-11 | ||
| CN200610049048.7 | 2006-01-11 | ||
| CNB2006100065529A CN100476274C (en) | 2006-01-11 | 2006-01-16 | Straight moving type three-way electromagnetic valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101000109A CN101000109A (en) | 2007-07-18 |
| CN100476274C true CN100476274C (en) | 2009-04-08 |
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ID=38692193
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100065529A Active CN100476274C (en) | 2006-01-11 | 2006-01-16 | Straight moving type three-way electromagnetic valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100476274C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102013016272A1 (en) * | 2013-09-25 | 2015-03-26 | Wabco Gmbh | valve assembly |
| CN104729836A (en) * | 2013-12-19 | 2015-06-24 | 珠海格力电器股份有限公司 | Solenoid valve pulse test tool |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2215635Y (en) * | 1995-03-10 | 1995-12-20 | 唐振立 | Pressure differnce-free two-direction electromagnetic valve |
| EP0681128B1 (en) * | 1994-05-07 | 1998-07-08 | Grau Gmbh | Solenoid valve |
| CN2431453Y (en) * | 2000-07-15 | 2001-05-23 | 宜兴市联通净化材料有限公司 | Improved two-position tee electromagnetic valve for refrigerator |
| CN2480627Y (en) * | 2001-05-26 | 2002-03-06 | 陆惠兴 | Electromagnetic valve for refrigerator |
| CN2597772Y (en) * | 2003-01-30 | 2004-01-07 | 林德美 | Pressure-controlled water level automatic controller |
-
2006
- 2006-01-16 CN CNB2006100065529A patent/CN100476274C/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0681128B1 (en) * | 1994-05-07 | 1998-07-08 | Grau Gmbh | Solenoid valve |
| CN2215635Y (en) * | 1995-03-10 | 1995-12-20 | 唐振立 | Pressure differnce-free two-direction electromagnetic valve |
| CN2431453Y (en) * | 2000-07-15 | 2001-05-23 | 宜兴市联通净化材料有限公司 | Improved two-position tee electromagnetic valve for refrigerator |
| CN2480627Y (en) * | 2001-05-26 | 2002-03-06 | 陆惠兴 | Electromagnetic valve for refrigerator |
| CN2597772Y (en) * | 2003-01-30 | 2004-01-07 | 林德美 | Pressure-controlled water level automatic controller |
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| Publication number | Publication date |
|---|---|
| CN101000109A (en) | 2007-07-18 |
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Effective date of registration: 20170207 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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Effective date of registration: 20220817 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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