CN2534441Y - Double-stable state two-position and three-way electromagnetic valve for refrigerator - Google Patents
Double-stable state two-position and three-way electromagnetic valve for refrigerator Download PDFInfo
- Publication number
- CN2534441Y CN2534441Y CN 02219134 CN02219134U CN2534441Y CN 2534441 Y CN2534441 Y CN 2534441Y CN 02219134 CN02219134 CN 02219134 CN 02219134 U CN02219134 U CN 02219134U CN 2534441 Y CN2534441 Y CN 2534441Y
- Authority
- CN
- China
- Prior art keywords
- valve
- spool
- bistable state
- way magnetic
- pipe
- 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.)
- Expired - Lifetime
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- Magnetically Actuated Valves (AREA)
Abstract
The utility model relates to an improvement of dual stable two digits and three way solenoid for the refrigeratory, in particularly to the stable improvement of the valve spindle. The utility model is characterized in that the valve spindle is driven by the left and the right two excitation coils, the pushing force of the butterfly spring arranged on the valve pipe is stable. Not only the stable pushing force of the valve spindle is big, the action is reliable, the performance is stable, but also the cleanness in the valve body is high and the ferromagnetic impurity centralization which causes blockage of the valve nozzle is not easy to occur. The utility model is characterized by simple structure and convenient manufacturing, which further reduces the manufacturing cost of the solenoid.
Description
Technical field
Model utility is about to the improvement of refrigerator with the bistable state two-position three way magnetic valve, relates in particular to the improvement of spool stable state.
Background technique
Chinese patent 00220268,00246524 disclosed reciprocating type bistable state two-position three way magnetic valve, its formation is in non-magnetizer tubular valve body center bilateral symmetry a pair of homopolarity permanent magnet opposed to be set, and causes valve seat and the adhesive of spool stable state by the magnetic field that permanent magnet produces.This dependence permanent magnet keeps the solenoid valve of adhesive stable state, exists permanent magnet demagnetization decay, causes valve stability good inadequately, and still needs regularly the field coil input pulse to be kept the reliable stable state of spool; Secondly, permanent magnet exists makes easily that magnetic impurity is attracted in the valve body in refrigerant or the pipeline, stops up that valve is chewed and spool is stuck, cisco unity malfunction thereby cause to gather; External permanent magnet is located inaccurate and is subjected to external magnetic interference and also can cause deficiencies such as misoperation, and these all influence the Performance And Reliability of valve.Above-mentioned besides patent all adopts the valve core structure of two ends band steel ball, reliably close performance for guaranteeing valve, require spool and valve pipe that narrow tolerance is arranged, this work in-process is comparatively difficult, and high machining accuracy, yield rate is reduced, and external permanent magnet location need increase positioning element in addition, all can cause manufacture cost to increase.
Summary of the invention
The purpose of model utility is to overcome the deficiency of above-mentioned prior art, provides a kind of improved stable state to keep, and stable performance is not affected by the external environment, and is simple in structure, easily manufactured, the refrigerator that cost is low bistable state two-position three way magnetic valve.
The model utility purpose realizes that main the improvement is two field coils that control valve core move left and right is set outside valve body, the valve bore is to being provided with butterfly spring, by spring force to the spool stable state.Specifically, model utility refrigerator bistable state two-position three way magnetic valve, the magnet case valve seat that comprises non-magnetizer tubular valve body and two ends, the magnet case spool that two valve base chambers can move back and forth, two refrigerant drain pipes that are oppositely arranged and one often open the refrigerant liquid inlet pipe, and the field coil that moves of control spool, it is characterized in that said field coil have about two, said valve block internal diameter is to being provided with butterfly spring, and said spool is arranged in the butterfly spring endoporus.Replace permanent magnet with butterfly spring like this, cause thrust, keep the stable state after the spool dead electricity spool by spring force.When needs change cryogen flow to, close distolateral field coil to need and apply transient current, the electromagnetic force that field coil produces overcomes butterfly spring thrust, the pulling spool moves, and drives the butterfly spring upset simultaneously.Control magnetic flux dead electricity disappears, and spool is then according to butterfly spring thrust stable state.
According to above-mentioned design, model utility can have two kinds of basic structure forms, and a kind of structure can be that three refrigerant access ways are be arranged in parallel along the valve pipe; Another kind of structure can be that three coolant channels are the setting of T type on valve body, wherein often opens liquid inlet pipe and is arranged on the valve body middle part.Said butterfly spring can be one; Also can be side by side alternately to be provided with two.
Model utility bistable state two-position three way magnetic valve, because ingenious butterfly spring thrust and the upset back thrust vectoring of utilizing, alternative permanent magnet causes the stable state to spool.Spool stable state thrust is big, reliable in action, and stable performance, affected by environment little, and owing to omit permanent magnet, be difficult for taking place ferromagnetic impurity and gather, stop up valve and chew or stuck spool, can guarantee turbidity test in the valve body simultaneously.The model utility electromagnetic valve structure is simple, and is easily manufactured, and especially inferior bell type structure spool has been simplified spool processing especially.Three coolant channels structure that be arranged in parallel can make valve body move in the field coil annular distance, not only simplifies valve member, and is simple in structure, and smaller volume is made also more easyly, and cost descends.
Description below in conjunction with accompanying drawing and several indefiniteness embodiments further specifies the model utility structure.
Description of drawings
Fig. 1 is the model utility first example structure schematic representation.
Fig. 2 is the model utility second example structure schematic representation.
Fig. 3 is model utility the 3rd an example structure schematic representation.
Fig. 4 is two butterfly spring structural representations.
Fig. 5 is inferior bell type valve core structure schematic representation.
Fig. 6 is Fig. 5 left side TV structure figure.
Embodiment
Embodiment 1: referring to Fig. 1, the reciprocating type two-position three way magnetic valve of bistable state has two circular excitation coils 3.1 and 3.2, and the bistable state two position three-way valve assembly that is built in the field coil annular distance is formed.Bistable state two-position three way valve assembly comprises non-magnetizer (copper pipe or stainless steel) valve pipe 7, and two ends are respectively with the magnet case valve seat 2.1 of single channel drain pipe 1.1, with Twin channel T type magnet case valve seat 2.2, two valve base chambers of drag-out pipe 1.2 and liquid inlet pipe 10 have be interspersed in radially be arranged in the valve pipe in the middle of the magnet case spool 5 of butterfly spring 8 endoporus.The spool two ends are embedded with the caulking gum 4 that shutoff drain pipe 1.1 and 1.2 valves are chewed respectively, and the surface axially is processed with the intake chute 11 of circulation refrigerant.Butterfly spring is by non-magnetizer left and right sides positioning pipe 6 clamping and positioning, and positioning pipe is then compressed by the two ends valve seat, and this form more helps assembling.Liquid inlet pipe 10 is located on indent 9 ring-shaped platforms of T type valve seat 2.2, makes its port be shorter than T type valve seat and stretches out boss, makes it to be normal open form formula.
During work, instantaneous conducting needs shutdown side field coil (as 3.1), the magnetic field that field coil produces makes magnet case valve seat 2.1 and 5 of magnet case spools produce magnetic field, this magnetic force overcomes butterfly spring 8 thrusts, the pulling spool moves (moving to left), drives the butterfly spring upset simultaneously, and spool is formed with respect to former deboost, keep the spool stable state after the field coil dead electricity, make refrigerant constitute 10 → 1.2 conductings.When the reverse travelling backwards of need spool, instantaneous conducting the other end field coil (as 3.2), the pulling spool moves (moving to right), drives the butterfly spring upset simultaneously, forms refrigerant by 10 → 1.1 conductings.
Embodiment 2: referring to Fig. 2, be the setting of T type as 1, three coolant channel of embodiment on valve pipe 7, wherein refrigerant inlet pipe 10 is arranged on valve pipe middle part, the butterfly spring biasing.
Embodiment 3: referring to Fig. 3, as described above, the reciprocating type two-position three way valve assembly of bistable state places the top of field coil 3, for strengthening magnetic intensity, is provided with magnetic conduction core 13 in the field coil annular distance, and there is " 7 " font magnetic conductor magnetic pole 12.1 and 12.2 both sides.
Embodiment 4: referring to Fig. 4, spool has two to be set up in parallel bent to identical butterfly spring 8.1 and 8.2 stable states.
Embodiment 5: referring to Fig. 5,6, spool 5 adopts the inferior bell type structural type of two ends band enlarged head 15, is processed into polygon two inferior bell heads or the multi sphere structure, and concave edge/arc 14 is for the refrigerant circulation in it.So both can guarantee refrigerant in poppet shaft to circulation, reduced spool microgap processing request again, process also easy, can guarantee the concentric of spool and valve body, thereby guarantee that spool is to effectively closing that valve is chewed, be particularly useful for spool band tapering or cambered surface enclosed construction (as steel ball sealing), the internal leakage that can effectively stop valve.
The model utility concrete structure is not limited to above-mentioned reference example; do not departing from the present invention's design; some unsubstantialities that model utility is done are changed; for example valve core structure shape and shutoff form (sealed steel ball being set as two ends), spool form of fracture, butterfly spring means of fixation and butterfly spring structure shape etc. are all truely used novel protected scope.
Claims (7)
1, a kind of refrigerator bistable state two-position three way magnetic valve, the magnet case valve seat that comprises non-magnetizer tubular valve body and two ends, the magnet case spool that two valve base chambers can move back and forth, two refrigerant drain pipes that are oppositely arranged and one often open the refrigerant liquid inlet pipe, and the field coil that moves of control spool, it is characterized in that said field coil have about two, said valve block internal diameter is to being provided with butterfly spring, said spool is arranged in the butterfly spring endoporus.
2,, it is characterized in that said butterfly spring is positioned in the valve pipe by the positioning pipe of both sides according to the described refrigerator of claim 1 bistable state two-position three way magnetic valve.
3,, it is characterized in that said spool two ends are embedded with caulking gum according to claim 1 or 2 described refrigerator bistable state two-position three way magnetic valves.
4, according to claim 1 or 2 described refrigerator bistable state two-position three way magnetic valves, it is characterized in that said butterfly spring is a slice, is arranged on the valve body central position.
5, according to claim 1 or 2 described refrigerator bistable state two-position three way magnetic valves, it is characterized in that said refrigerant liquid in-out pipe be arranged in parallel, an end is a drain pipe, the other end is a drain pipe and a liquid inlet pipe.
6,, it is characterized in that the valve seat of said two drain pipe ends is the T type according to the described refrigerator of claim 5 bistable state two-position three way magnetic valve.
7, according to claim 1 or 2 described refrigerator bistable state two-position three way magnetic valves, it is characterized in that said spool is inferior bell type structure, its enlarged head axially has the refrigerant runner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02219134 CN2534441Y (en) | 2002-03-03 | 2002-03-03 | Double-stable state two-position and three-way electromagnetic valve for refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02219134 CN2534441Y (en) | 2002-03-03 | 2002-03-03 | Double-stable state two-position and three-way electromagnetic valve for refrigerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2534441Y true CN2534441Y (en) | 2003-02-05 |
Family
ID=33697663
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02219134 Expired - Lifetime CN2534441Y (en) | 2002-03-03 | 2002-03-03 | Double-stable state two-position and three-way electromagnetic valve for refrigerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2534441Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1928370B (en) * | 2006-10-10 | 2013-06-19 | 张玉宝 | Proportion magnetic valve and servo control method for same |
| CN105736766A (en) * | 2014-12-09 | 2016-07-06 | 上海新力动力设备研究所 | Compact rapid two-position three-way electromagnetic directional valve provided with internal channel |
-
2002
- 2002-03-03 CN CN 02219134 patent/CN2534441Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1928370B (en) * | 2006-10-10 | 2013-06-19 | 张玉宝 | Proportion magnetic valve and servo control method for same |
| CN105736766A (en) * | 2014-12-09 | 2016-07-06 | 上海新力动力设备研究所 | Compact rapid two-position three-way electromagnetic directional valve provided with internal channel |
| CN105736766B (en) * | 2014-12-09 | 2018-03-09 | 上海新力动力设备研究所 | The built-in compact quick two-bit triplet solenoid directional control valve of passage |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20120303 Granted publication date: 20030205 |