CN2520441Y - Bistable two-position three-way electromagnetic valve for refrigerator - Google Patents
Bistable two-position three-way electromagnetic valve for refrigerator Download PDFInfo
- Publication number
- CN2520441Y CN2520441Y CN 02218975 CN02218975U CN2520441Y CN 2520441 Y CN2520441 Y CN 2520441Y CN 02218975 CN02218975 CN 02218975 CN 02218975 U CN02218975 U CN 02218975U CN 2520441 Y CN2520441 Y CN 2520441Y
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- China
- Prior art keywords
- spool
- valve
- way magnetic
- bistable state
- permanent magnet
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- 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 - Fee Related
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Abstract
The utility model relates to an improvement for a bistable two-position three-way magnetic valve, a major improvement is that a permanent magnet of a spool adhesive stationarity is arranged on a spool. The spool is arranged in a permanent magnet, magnetic field strength is high, which is benefits for the spool to effectively adhere and locate when a drive coil in an electricity loss state, impulse current which is input to a drive coil regularly can be omitted, and electric energy is further saved. Attenuation of magnetic property can be effectively reduced by a built-in permanent magnet, and false action can not be produced by disturbing a foreign magnetic field. In particular to a liquid-through tube parallel arrangement structure, a valve body is removed into the ring hole of the drive coil, valve elements can largely by reduced, structure can be more simple, size can be smaller, production cost can be more lower. Manufacture of a non-magnetizer spool and a barbell-shaped spool is simple.
Description
Technical field
Model utility relates to a kind of refrigerator double temperature double control two-position three way magnetic valve, relates in particular to the bistable state two-position three way magnetic valve.
Background technique
Chinese patent 00220268,00246524 is disclosed to be symmetrical arranged a pair of homopolarity permanent magnet opposed in the non-magnetizer valve pipe outside, the magnetic of forming with magnet case spool, valve seat keeps reciprocating type bistable state two-position three way magnetic valve, though the valve constituent elements is reduced, structure obtains simplifying.Yet the external bistable state two-position three way magnetic valve of this permanent magnet, must adopt the magnet case spool, spool difficulty of processing and cost have been increased, and the external location of permanent magnet need increase positioning element in addition, locate inaccurate and external permanent magnet and be subjected to the influence of external magnetic interference easily and cause misoperation, and need regularly keep the reliable stable state of spool the field coil input pulse.And this valve simply adopts the spool of two ends band steel ball, closes performance for guaranteeing valve, requires spool and valve sleeve that narrow tolerance is arranged, and this work in-process is comparatively difficult, and high machining accuracy, difficulty make yield rate reduce, and manufacture cost improves; Therefore, above-mentioned bistable state two-position three way magnetic valve still exists some deficiency, and still having is worth improved in the side.
Summary of the invention
The purpose of model utility is to overcome the deficiency of above-mentioned prior art, provides a kind of improved simple in structure, easily manufactured, and cost is low, has the bistable state two-position three way magnetic valve of built-in permanent magnet, to overcome the deficiency that above-mentioned prior art exists.
The model utility purpose realizes, the main improvement is that external permanent magnet with the stable state spool moves to spool.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 mangetic core assembly that two valve base chambers can move back and forth, and be arranged on the valve body two drain pipes that are oppositely arranged and one and often open liquid inlet pipe, the field coil that moves of control spool, it is characterized in that said mangetic core assembly two ends and/or radially both sides two relative permanent magnets of homopolarity are arranged.The magnetic field that the spool permanent magnet produces makes spool and adhesive magnet case valve seat reach effective adhesive and maintenance, and spool is kept with this valve seat stablize attracting state, and under the acting in conjunction of refrigerant fluid pressure, realization " not having electric self-locking ".When needs change cryogen flow to, pass to instantaneous back current for the control field coil, make the field coil two ends produce high magnetic fields with spool permanent magnet polarization flux-reversal, drive spool and move to opposite side.Control magnetic flux dead electricity disappears polar flux and magnet case valve seat stable state that spool then produces according to permanent magnet on the spool.The instantaneous electric current that passes to different direction of field coil can be realized or alternately be powered end to end to coil by electronic circuit realizing etc. by electronic circuit.
According to above-mentioned design, model utility can have two kinds of basic structure forms, a kind of mode of execution can be that three coolant channels on the valve body are be arranged in parallel along the valve pipe, can be built in the field coil annular distance forming bistable magnetic freeze mode valve body like this, thereby reach the volume that further dwindles solenoid valve.Another kind of mode of execution can be the setting of T type with three coolant channels on valve body, will form bistable magnetic freeze mode valve body and be placed on field coil one side.
Model utility said spool two ends or both sides homopolarity permanent magnet opposed radially, be meant that two permanent magnet opposing side magnetic polarities are identical, two outside magnetic poles of two permanent magnets that promptly are oppositely arranged are identical with two inboard magnetic poles, and for example two inboards are the S utmost point, two outsides are the N utmost point, or opposite.
Model utility is provided with the position difference according to permanent magnet on the spool, and the spool main body can adopt magnet case material or non-magnetizer material.According to claimant's repetition test, permanent magnet is arranged on two ends, the spool left and right sides, and spool adopts magnet case or non-magnetizer material all can; Permanent magnet is arranged on radially both sides of spool, for guaranteeing the effective stable state of spool, generally can only adopt the magnet case material.
Valve is chewed shutoff on model utility spool and the valve seat, can adopt steel ball etc. to have garden arc or pointed cone sealing, and recess correspondingly, also can adopt the flexible plugging material sealings of corrosion resistant such as rubber, be good with rubber seal especially wherein, one sealing is reliable, and two can reduce spool and the requirement of valve pipe matching gap, convenient processing.
For avoiding spool end permanent magnet and valve body end face " to suck ", the spool end permanent magnet should be taked indentation structural type, makes spool end permanent magnet and valve seat end face keep a fine gap.This structure also helps reducing spool fast moving bump valve seat end face and causes noise.The permanent magnet indentation, a kind of than plain mode, be Sealing protrusion permanent magnet end face with the shutoff valve port.
For guaranteeing that spool and valve pipe have less gap, improve effective sealing that the sealing of spool garden arc or pointed cone is chewed the recess valve, spool can adopt the inferior bell type structure of two ends band enlarged head, is processed into polygon two inferior bell heads or the multi sphere structure.So both guaranteed refrigerant in poppet shaft to circulation, also reduced simultaneously spool microgap processing request, this inferior bell spool can be guaranteed the concentric of spool and valve body, can in the valve pipe, not produce radial-play, thereby assurance tapering or cambered surface enclosed construction can be stopped the internal leakage of valve to effectively closing that valve is chewed.
The said liquid inlet pipe (passage) of often opening of model utility is meant that this channel valve is chewed not to be subjected to switching spool and to be closed, and remains normal open form formula.Along the valve pipe valve body that be arranged in parallel, a kind of comparatively easy way is that this valve is chewed indentation or the interior recess that is arranged on as T type valve seat for three coolant channels; On valve body, be the valve body that the T type is provided with for three coolant channels, will often open liquid inlet pipe and be arranged on valve pipe middle part.
Model utility bistable state two-position three way magnetic valve, because the external permanent magnet of stable state spool is moved on the spool, not only can reach the stable state of spool attracted position equally, and permanent magnet has stronger magnetic intensity on spool, helps spool effective " adhesive " location under the field coil power failure state, and the spool stable state does not need regularly field coil input pulse electric current to be kept yet, and can reduce number of energized coils, or realize that more low voltage starts, further saving power.Permanent magnet is built-in, can also effectively reduce the magnetic property decay, produces misoperation nor be subject to external magnetic interference.Especially the fluid-through tube structure that be arranged in parallel, valve body moves in the field coil annular distance, can make that valve member significantly reduces, structure becomes simply, and it is littler that volume can become, and manufacture cost descends.Non-magnetizer spool and inferior bell type spool processing and fabricating are also simple.
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 the another structural representation of model utility spool.
Fig. 4 is that Fig. 1,2,3 spool A are to structural representation.
Fig. 5 is another structural representation of model utility spool.
Fig. 6 is that Fig. 5 spool B is to structural drawing.
Fig. 7 is a model utility spool structural representation again.
Fig. 8 is that Fig. 6 spool C is to structural drawing.
Embodiment
Embodiment 1: referring to Fig. 1, the reciprocating type two-position three way magnetic valve of bistable state is made up of circular excitation coil 8 and the bistable state two position three-way valve assembly that is built in the field coil annular distance.Bistable state two-position three way valve assembly, comprise non-magnetizer (copper pipe) valve pipe 3, two ends have the T type magnet case valve seat 2.2 of band single channel catheter 1 magnet case valve seat 2.1 and Twin channel catheter 6 and 7 respectively, two valve base chambers have the spool 10 that is inferior bell structure, the spool two ends are embedded with two relative permanent-magnetic clamps 4.1 of homopolarity respectively and 4.2 (two inboards are the S utmost point, two outsides are the N utmost point), spool end is fixed with the sealed steel ball 9.1 and 9.2 of protrusion respectively, and the corresponding sealed steel ball of valve seat position has the valve that cooperates with the steel ball cambered surface to chew.Liquid inlet pipe 7 is located at the scrobicular ring 5 of T type valve seat, makes it to be normal open form formula.Spool adopts non-magnetic conduction copper spare (also can adopt permeability magnetic material), and two enlarged head are to encircle with the garden of valve pipe internal surface microgap, have the groove 16 (Fig. 4) of some circulation refrigerant on it.
Embodiment 2: referring to Fig. 2, as embodiment 1, the reciprocal two-position three way magnetic valve of bistable state places field coil 8 tops, and three coolant channels are the setting of T type on valve body, and wherein liquid inlet pipe is arranged on valve pipe middle part.Magnetic conduction core 12 and both sides " 7 " font magnetic conductor magnetic pole 11.1 and 11.2 is arranged in the field coil annular distance, both ends of the surface magnetic field when switching on to strengthen field coil, wherein " 7 " font magnetic pole stretches out the curved tubular valve body of just in time admitting the top of galianconism.
Embodiment 3: referring to Fig. 3, as described above, spool 10 is made up of tubular body 14 and built-in rubber 13, and wherein both ends of the surface are stretched out spool end.
Embodiment 4: referring to Fig. 5, Fig. 6, as described above, spool 10 is made up of magnet case tubular body 14 and built-in rubber 13, wherein both ends of the surface are stretched out spool end, the stable state permanent magnet is a symmetry watt shape 15.1 and 15.2, homopolarity is oppositely arranged on radially both sides of the thin portion of the inferior bell of spool, and spool end is processed with leakage field cambered surface 17.
Embodiment 5 is referring to Fig. 7,8, and as embodiment 4, spool adopts magnet case processing, and its end face is provided with sealed steel ball 9.The relative radially both sides of the thin portion of the inferior bell of spool that are symmetricly set on of stable state watt shape permanent magnet 15.1 with 15.2 homopolarities.
The model utility concrete structure can be not limited to above-mentioned specific embodiment, is not departing from the present invention design, and some unsubstantialities that model utility is done are changed, and all truely uses novel protected scope.
Claims (8)
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 mangetic core assembly that two valve base chambers can move back and forth, and be arranged on the valve body two drain pipes that are oppositely arranged and one and often open liquid inlet pipe, the field coil that moves of control spool, it is characterized in that said mangetic core assembly two ends and/or radially both sides two relative permanent magnets of homopolarity are arranged.
2, according to the described refrigerator of claim 1 bistable state two-position three way magnetic valve, it is characterized in that three liquid pipes be arranged in parallel along the valve pipe on the said valve body, place in the field coil annular distance.
3, according to the described refrigerator of claim 1 bistable state two-position three way magnetic valve, it is characterized in that three liquid pipes are in the setting of valve body T type on the said valve body, the middle part is a liquid inlet pipe, valve body is placed on field coil one side.
4,, it is characterized in that said spool is inferior bell structure according to claim 1,2 or 3 described refrigerator bistable state two-position three way magnetic valves.
5,, it is characterized in that permanent magnet omits the indentation spool end on the said spool according to the described refrigerator of claim 4 bistable state two-position three way magnetic valve.
6,, it is characterized in that said spool end is sealed into flexible rubber according to the described refrigerator of claim 4 bistable state two-position three way magnetic valve.
7, according to the described refrigerator of claim 4 bistable state two-position three way magnetic valve, it is characterized in that permanent magnet is arranged on spool end on the said spool.
8,, it is characterized in that said spool made by copper pipe according to the described refrigerator of claim 7 bistable state two-position three way magnetic valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02218975 CN2520441Y (en) | 2002-02-10 | 2002-02-10 | Bistable two-position three-way electromagnetic valve for refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02218975 CN2520441Y (en) | 2002-02-10 | 2002-02-10 | Bistable two-position three-way electromagnetic valve for refrigerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2520441Y true CN2520441Y (en) | 2002-11-13 |
Family
ID=33697543
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02218975 Expired - Fee Related CN2520441Y (en) | 2002-02-10 | 2002-02-10 | Bistable two-position three-way electromagnetic valve for refrigerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2520441Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102269292A (en) * | 2010-12-31 | 2011-12-07 | 北京谊安医疗***股份有限公司 | Electromagnetic valve |
| EP2893235A4 (en) * | 2012-09-07 | 2016-04-20 | Creare Inc | Actuator for an in-line vacuum jacketed control valve for cyrogenic fluids |
| CN106286892A (en) * | 2015-05-21 | 2017-01-04 | 浙江三花股份有限公司 | Three-way magnetic valve |
| CN110259988A (en) * | 2019-06-28 | 2019-09-20 | 南京威赛环保科技有限公司 | A kind of corrosion resistant two-bit triplet solenoid valve |
| CN110873226A (en) * | 2018-08-30 | 2020-03-10 | 浙江盾安禾田金属有限公司 | Throttling device and heat exchange system with same |
-
2002
- 2002-02-10 CN CN 02218975 patent/CN2520441Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102269292A (en) * | 2010-12-31 | 2011-12-07 | 北京谊安医疗***股份有限公司 | Electromagnetic valve |
| CN102269292B (en) * | 2010-12-31 | 2013-03-20 | 北京谊安医疗***股份有限公司 | Electromagnetic valve |
| EP2893235A4 (en) * | 2012-09-07 | 2016-04-20 | Creare Inc | Actuator for an in-line vacuum jacketed control valve for cyrogenic fluids |
| CN106286892A (en) * | 2015-05-21 | 2017-01-04 | 浙江三花股份有限公司 | Three-way magnetic valve |
| CN110873226A (en) * | 2018-08-30 | 2020-03-10 | 浙江盾安禾田金属有限公司 | Throttling device and heat exchange system with same |
| CN110259988A (en) * | 2019-06-28 | 2019-09-20 | 南京威赛环保科技有限公司 | A kind of corrosion resistant two-bit triplet solenoid valve |
| CN110259988B (en) * | 2019-06-28 | 2020-12-15 | 南京威赛环保科技有限公司 | Corrosion-resistant two-position three-way electromagnetic valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |