CN101886709B - Bistable electromagnetic valve and valve body thereof - Google Patents
Bistable electromagnetic valve and valve body thereof Download PDFInfo
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- CN101886709B CN101886709B CN 200910138423 CN200910138423A CN101886709B CN 101886709 B CN101886709 B CN 101886709B CN 200910138423 CN200910138423 CN 200910138423 CN 200910138423 A CN200910138423 A CN 200910138423A CN 101886709 B CN101886709 B CN 101886709B
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Abstract
The invention discloses a valve body of a bistable electromagnetic valve, which is provided with a valve chamber, an inlet and two outlets, wherein the valve chamber is connected with the inlet and the two outlets; the inlet and a first outlet are arranged at one end of the valve chamber and the second outlet is arranged at the other end; the lateral wall of the valve chamber between the inlet and the second outlet is provided with a medium channel; a valve core arranged in the valve chamber can alternatively seal the first outlet or the second outlet; when the valve core seals the first outlet at one side, the medium outflows from the second outlet through the medium channel; when the valve core seals the second outlet at the other side, the medium outflows from the first outlet; and the sealing position of the valve core is kept by magnetic force of a permanent magnet. Because the valve chamber body is a relatively fixed component, irregular movement of the valve chamber body does not occur under the condition of acting the medium on the lateral wall of the valve chamber, thereby effectively preventing occurrence of operating noise. On the basis, the invention also provides a bistable electromagnetic valve with the valve body.
Description
Technical field
The present invention relates to the reversing control valve for refrigerant-cycle systems, be specifically related to a kind of bistable electromagnetic valve and valve body thereof.
Background technique
Bistable electromagnetic valve has the advantages that energy consumption is low, reliability is high.It adopts pulse and permanent magnetism technology, change the on state of valve by the electrode contacts of controller switching pulse, when controller sends electrical pulse, electromagnetic force drives spool and overcomes permanent magnetic generation commutation displacement, and rely on permanent magnetic that spool is remained on the working position, realized need not to keep the bistable state of electric current.
See also Fig. 1 and Fig. 2, wherein, Fig. 1 is the overall structure schematic diagram of existing bistable electromagnetic valve body, and Fig. 2 is the A-A sectional drawing of Fig. 1.
As shown in the figure, two permanent magnets 8 are symmetricly set between the second sleeve pipe 6 and the first sleeve pipe 3 in annular space, and by two fixed blocks 2 interval successively; Diplopore valve seat 1 is fixedly connected with the two ends of sleeve pipe respectively with single hole valve seat 7, and wherein, two intercommunicating pores of diplopore valve seat 1 are communicated with inlet tube and the first outer pipe respectively, and the intercommunicating pore of single hole valve seat 7 is communicated with the second outer pipe; Spool 4 is placed in the first sleeve pipe 3, and the outer surface of spool 4 has the groove 5 of a plurality of axial settings, with the connected relation of the first sleeve pipe cavity volume of setting up spool 4 both sides.Left end sealing surface and the diplopore valve seat 1 of spool 4 offset, this working position, medium through inlet tube enter the first sleeve pipe 3 interior after, flow out through the second outer pipe; Right-hand member sealing surface and the single hole valve seat 7 of spool 4 offset, this working position, medium through inlet tube enter the first sleeve pipe 3 interior after, flow out through the first outer pipe.Electromagnetic control coil is placed in the outside (not shown) of valve body, electromagnetic control coil is applied the electric current of different direction, and the magnetic force of its generation is used for driving spool and switches between aforementioned two working positions, thereby realizes alternately refrigeration of two circulation branch roads.In working procedure, medium flows through in the groove of spool periphery, because medium is comparatively complicated to the thrust that spool produces, and spool 4 is movable part, thereby easily cause spool to produce the irrgular movements such as circuit oscillation, thus impact the inwall of the first sleeve pipe 3, form noise.
In view of this, demand urgently improving design for existing bistable electromagnetic valve, to avoid producing operational noise.
Summary of the invention
For defects, the technical problem that the present invention solves is, a kind of bistable electromagnetic valve body that can effectively avoid operational noise is provided.On this basis, the present invention also provides a kind of bistable electromagnetic valve with this valve body.
Import and two outlets that bistable electromagnetic valve body provided by the invention, this valve body have valve pocket and be communicated with valve pocket, wherein, import and the first outlet are arranged on an end of described valve pocket, and the second outlet is arranged on the other end of described valve pocket; Has medium channel between described import and the second outlet; The spool that is placed in valve pocket optionally seals the first outlet or the second outlet, and when first of described seal spool one side exported, medium flowed out through the second outlet by this medium channel; When second of described seal spool opposite side exported, medium flowed out through the first outlet; The sealing station of spool keeps by the magnetic force of permanent magnet; Described medium channel is arranged on the sidewall of valve pocket.
Preferably, described valve pocket is specially by the first sleeve pipe and is positioned at the inner volume that the valve seat at the first sleeve pipe two ends consists of; Described medium channel parallels with the shaft axis of the first sleeve pipe.
Preferably, described medium channel is specially the opening that radially connects on the first sleeve pipe.
Preferably, described medium channel is specially the groove on the first set inner tube wall.
Preferably, described medium channel is several, and circumferentially uniform along described the first sleeve pipe of several passages.
Preferably, described medium channel extends to the end face near described import of described the first sleeve pipe.
Preferably, described permanent magnet is at least two, and along described the first sleeve pipe circumferentially successively the interval arrange.
Preferably, the long-pending through flow cross section less than described import of the through flow cross section of described medium channel is long-pending.
Preferably, also comprise the second sleeve pipe that is sleeved on the permanent magnet outside, its two ends are connected by sealing with the valve seat of both sides respectively.
Bistable electromagnetic valve provided by the invention comprises valve body and the control coil that is sleeved on the described valve body outside, and the spool of the described valve body of magneto drive that control coil produces switches between two sealing stations; Described valve body adopts foregoing bistable electromagnetic valve body.
Compared with prior art, valve body provided by the invention will be arranged on the sidewall of valve pocket be used to the medium channel of setting up connected relation between import and the second outlet, that is, medium flows in the sidewall of valve pocket.And in prior art, this channel setting is on the outer surface of spool, and spool is movable part in the course of the work, like this, easily produces irrgular movement at the effect lower valve core of medium thrust, and can the dash valve cavity wall and form operational noise.Comparatively speaking, in technical solution of the present invention, this medium channel is arranged on the sidewall of valve pocket, because the valve pocket body is relatively-stationary parts, when acting on this valve pocket sidewall, medium can not cause it to produce irrgular movement, that is to say, valve body of the present invention does not impact between adjacent component in the course of the work, thereby can effectively avoid producing operational noise.In addition, the runner of existing structure is arranged on spool, thereby the processing technology of runner is comparatively complicated, processing cost is higher; And in technical solution of the present invention, this runner is arranged on the sidewall of valve pocket, and obviously, processing flow channel on the valve pocket body is easily realized on technique, and then can be enhanced productivity, and cuts down finished cost.
In preferred version of the present invention, described valve pocket is specially by the first sleeve pipe and is positioned at the inner volume that the valve seat at the first sleeve pipe two ends consists of; Described medium channel parallels with the shaft axis of the first sleeve pipe.Particularly, this medium channel is specially on the first sleeve pipe the opening that radially connects or is specially groove on the first set inner tube wall.Obviously, the opening in aforementioned preferred version or groove can adopt the mode of bits processing or chipless machining to realize, have further improved the manufacturability of medium channel.
In another preferred version of the present invention, described medium channel is several, and circumferentially uniform along described the first sleeve pipe of several passages.Like this, the pressure medium that acts radially on spool is circumferentially uniform along it, can guarantee that spool is consistent with radial clearance between the first sleeve pipe, and then improves the functional reliability of spool travel.
Bistable electromagnetic valve provided by the invention is used for controlling the Automatic Control Component that refrigerant leads to different warm areas, realizes the temperature control of different warm areas by the break-make of refrigerant, is specially adapted to refrigerator refrigeration system.
Description of drawings
Fig. 1 is the overall structure schematic diagram of existing bistable electromagnetic valve body;
Fig. 2 is the A-A sectional drawing of Fig. 1;
Fig. 3 is the overall structure schematic diagram of bistable electromagnetic valve body of the present invention, and shown in figure, spool is positioned at the working position of sealing the first outlet;
Fig. 4 is the B-B sectional drawing of Fig. 3;
The spool that Fig. 5 shows bistable electromagnetic valve body of the present invention is positioned at the working position that sealing second exports;
Fig. 6, Fig. 7, Fig. 8, Fig. 9 and Figure 10 illustrate respectively the medium channel of different structure form.
In Fig. 3-Figure 10:
The first sleeve pipe 10; Medium channel 11,111,112,113,114,115; Diplopore valve seat 20; Import 21; The first outlet 22; Single hole valve seat 30; The second outlet 31; Spool 40; Inlet tube 51; The first outer pipe 52; The second outer pipe 53; Permanent magnet 60; Fixed block 70; The second sleeve pipe 80.
Embodiment
The present invention is based on the improvement design that the existing structure of bistable electromagnetic valve is made, and bistable electromagnetic valve mainly is made of valve body and two major components of control coil of being sleeved on the described valve body outside, and its structure and working principle and prior art are basic identical.In working procedure, electromagnetic control coil is applied the electric current of different direction, the magnetic force of its generation be used for to drive spool and switches between two seal operation positions, thereby realizes alternately refrigeration of two circulation branch roads, satisfies the usage requirement of refrigeration system.
Need to prove, due to the relative position between control coil in this programme and valve body and annexation and prior art identical, those of ordinary skill in the art can realize fully based on prior art, therefore this paper is not further described control coil.
Illustrate the embodiment of bistable electromagnetic valve body below in conjunction with Figure of description.
See also Fig. 3, this figure is the overall structure schematic diagram of bistable electromagnetic valve body of the present invention.
As shown in the figure, an end and the diplopore valve seat 20 of the first sleeve pipe 10 are connected by sealing, and its other end and single hole valve seat 30 are connected by sealing.The three consists of the valve pocket of valve body.Wherein, have the import 21 and the first outlet 22 that are communicated with valve pocket on diplopore valve seat 20, have the second outlet 31 that is communicated with valve pocket on single hole valve seat 30.
Spool 40 is placed in this valve pocket, and spool 40 can slide in valve pocket under the magnetic force of control coil, thereby optionally seals first outlet the 22 or second outlet 31.Wherein, elastic materials are adopted at spool 40 both side ends and first outlet the 22 and second outlet 31 positions of offseting, make the shutoff position have sealing preferably.
As shown in Figure 3, inlet tube 51 is inserted in import 21, and the first outer pipe 52 is inserted in the first outlet 22, and the second outer pipe 53 is inserted in the second outlet 22; After plug-in mounting was completed, three pipelines were fixed with corresponding valve seat soldering, preferably adopt silver brazing, and weld strength is better, to adapt to the difference variation of medium in pipeline.
As shown in Figure 4, permanent magnet 60 is two, and along the first sleeve pipe 10 circumferentially successively the interval arrange, adopt insulation fixed block 70 to carry out circumferentially spacing between the two.The quantity that should be appreciated that permanent magnet 60 is not limited to two shown in Fig. 4, and in fact, permanent magnet 60 also can be for plural a plurality of, remains on the use needs of seal operation position all in the claimed scope of the application as long as satisfy spool 40
In addition, the magnetic direction of permanent magnet 60 is consistent with the glide direction of spool 40, is beneficial to spool and obtains stronger magnetic force and remain on corresponding seal operation position.
The second sleeve pipe 80 is sleeved on the outside of permanent magnet 60, and its two ends are connected by sealing with the valve seat of both sides respectively.Particularly, can adopt the argon arc welding mode.
In working order, when spool 40 in the driving lower slider of control coil to diplopore valve seat 20 ends and when sealing the first outlet 22, as shown in Figure 3, medium is after inlet tube 51 enters valve body, enter in the valve pocket of spool 40 opposite sides by the medium channel 11 on the first sleeve pipe 10, flow out finally by the second outlet 31, form by the path between inlet tube 51 to second outer pipes 53; When spool 40 in the driving lower slider of control coil to single hole valve seat 30 ends and when sealing the second outlet 31, as shown in Figure 5, medium flows out through the first outlet 22 after inlet tube 51 enters valve body, forms by the path between inlet tube 51 to first outer pipes 52.
This programme will be arranged on the sidewall of valve pocket be used to the medium channel 11 of setting up path between import 21 and the second outlet 31, that is, medium flows in the sidewall of valve pocket.Because the valve pocket body is relatively-stationary parts, when acting on this valve pocket sidewall, medium can not cause it to produce irrgular movement, that is to say, valve body of the present invention does not impact between adjacent component in the course of the work, thereby can effectively avoid producing operational noise.In addition, the runner of existing structure is arranged on spool, thereby the processing technology of runner is comparatively complicated, processing cost is higher; And in technical solution of the present invention, this runner is arranged on the sidewall of valve pocket, and obviously, processing flow channel on the valve pocket body is easily realized on technique, and then can be enhanced productivity, and cuts down finished cost.
What specify is that the medium channel 11 that is arranged on the first sleeve pipe 10 can be straight line shape, arc shaped, can be even also zigzag shape.Especially, shown in Fig. 3, the technology capability of the straight line shape medium channel 11 that arranges with the axis parallel of the first sleeve pipe 10 is best, therefore be optimal case.
Obviously, this medium channel can also can non-ly connect along the radially perforation of the first sleeve pipe 10.
Referring to Fig. 6, the figure shows a kind of shape of cross section of the first sleeve pipe, the medium channel 111 shown in figure is the opening that radially connects on the first sleeve pipe.
Referring to Fig. 7, the figure shows the shape of cross section of another kind of the first sleeve pipe, the medium channel 112 shown in figure is the groove on the first set inner tube wall.The medium channel of opening or form of grooves can adopt the mode of bits processing or chipless machining to realize.
In addition, medium channel is several, and circumferentially uniform along described the first sleeve pipe of several passages.Like this, the pressure medium that acts radially on spool is circumferentially uniform along it, thereby guarantees that between spool and the first sleeve pipe, radial clearance is basically identical, causes the spool deflection to avoid single load bearing, affects the operability of spool travel.
Should be appreciated that the axial position of medium channel on the first sleeve pipe should not limit to the claimed scope of the application.That is to say, this medium channel can be along the arbitrary position of being axially disposed within of the first sleeve pipe.
Referring to Fig. 8, this illustrates a kind of plan view of the first sleeve pipe, shown in figure, along the first sleeve pipe axially, medium channel 113 is positioned at the middle part of the first sleeve pipe, the two ends of medium channel 113 all do not connect.
Referring to Fig. 9, this illustrates the plan view of another kind of the first sleeve pipe, shown in figure, along the first sleeve pipe axially, the two ends of medium channel 114 all connect.
Referring to Figure 10, the figure shows the plan view of another the first sleeve pipe, shown in figure, along the first sleeve pipe axially, medium channel 115 is positioned at an end of the first sleeve pipe.One end of medium channel 115 connects, the non-perforation of the other end.Preferably, described medium channel extends to the end face near described import of described the first sleeve pipe, and namely the perforation end of this medium channel 115 is connected with diplopore valve seat 20, is beneficial to medium and flows into medium channel through import.
In this programme, the long-pending through flow cross section less than import 21 of the through flow cross section of medium channel is long-pending, to avoid affecting along the stroke pressure loss normal operation of refrigeration system.In like manner, for the bistable electromagnetic valve that several medium channels are set, the long-pending sum of the through flow cross section of each passage is long-pending less than the through flow cross section of import.
The above is only the preferred embodiment of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (6)
1. import and two outlets that bistable electromagnetic valve body, this valve body have valve pocket and be communicated with valve pocket, wherein, import and first exports an end that is arranged on described valve pocket, and second exports the other end that is arranged on described valve pocket; Has medium channel between described import and the second outlet; The spool that is placed in valve pocket optionally seals the first outlet or the second outlet, and when first of described seal spool one side exported, medium flowed out through the second outlet by this medium channel; When second of described seal spool opposite side exported, medium flowed out through the first outlet; The sealing station of spool keeps by the magnetic force of permanent magnet; It is characterized in that, described medium channel is arranged on the sidewall of valve pocket;
Described valve pocket is specially by the first sleeve pipe and is positioned at the inner volume that the valve seat at the first sleeve pipe two ends consists of; Described medium channel parallels with the shaft axis of the first sleeve pipe, and described medium channel is specially the opening that radially connects on the first sleeve pipe or is the groove on the first set inner tube wall;
Described medium channel one end extends to the end face near described import of described the first sleeve pipe, the non-perforation of the other end of described medium channel.
2. bistable electromagnetic valve body according to claim 1, is characterized in that, described medium channel is several, and circumferentially uniform along described the first sleeve pipe of several passages.
3. bistable electromagnetic valve body according to claim 1, is characterized in that, described permanent magnet is at least two, and along described the first sleeve pipe circumferentially successively the interval arrange.
4. bistable electromagnetic valve body according to claim 1, is characterized in that, the long-pending through flow cross section less than described import of the through flow cross section of described medium channel is long-pending.
5. bistable electromagnetic valve body according to claim 1, is characterized in that, also comprises the second sleeve pipe that is sleeved on the permanent magnet outside, and its two ends are connected by sealing with the valve seat of both sides respectively.
6. bistable electromagnetic valve, comprise valve body and the control coil that is sleeved on the described valve body outside, the spool of the described valve body of magneto drive that control coil produces switches between two sealing stations, it is characterized in that, described valve body adopts bistable electromagnetic valve body as described in any one in claim 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910138423 CN101886709B (en) | 2009-05-11 | 2009-05-11 | Bistable electromagnetic valve and valve body thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910138423 CN101886709B (en) | 2009-05-11 | 2009-05-11 | Bistable electromagnetic valve and valve body thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101886709A CN101886709A (en) | 2010-11-17 |
| CN101886709B true CN101886709B (en) | 2013-05-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200910138423 Active CN101886709B (en) | 2009-05-11 | 2009-05-11 | Bistable electromagnetic valve and valve body thereof |
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| CN (1) | CN101886709B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10202987B2 (en) | 2013-07-19 | 2019-02-12 | Dresser, Llc | Valve assembly having dual functionality for directional control of a piston on a fluid actuated device |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104421455A (en) * | 2013-08-26 | 2015-03-18 | 广东美的厨房电器制造有限公司 | Range hood and reversing valve thereof |
| CN103742698A (en) * | 2013-12-09 | 2014-04-23 | 镇江新区科力迪机电科技有限公司 | Electromagnetic valve element moving at high speed in reciprocating mode |
| CN103629418A (en) * | 2013-12-09 | 2014-03-12 | 镇江市博林光电科技有限公司 | Solenoid valve core capable of moving back and forth at high speed |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6705346B2 (en) * | 2000-07-31 | 2004-03-16 | Bsh Bosch Und Siemens Hausgerate Gmbh | Bistable solenoid valve |
| CN2814057Y (en) * | 2005-07-29 | 2006-09-06 | 浙江三花制冷集团有限公司 | Double-steady state electromagnetic valve spool part structure |
| CN201232774Y (en) * | 2008-05-28 | 2009-05-06 | 浙江三花制冷集团有限公司 | Bistable magnetic valve |
-
2009
- 2009-05-11 CN CN 200910138423 patent/CN101886709B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6705346B2 (en) * | 2000-07-31 | 2004-03-16 | Bsh Bosch Und Siemens Hausgerate Gmbh | Bistable solenoid valve |
| CN2814057Y (en) * | 2005-07-29 | 2006-09-06 | 浙江三花制冷集团有限公司 | Double-steady state electromagnetic valve spool part structure |
| CN201232774Y (en) * | 2008-05-28 | 2009-05-06 | 浙江三花制冷集团有限公司 | Bistable magnetic valve |
Non-Patent Citations (1)
| Title |
|---|
| JP特开平7－280109A 1995.10.27 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10202987B2 (en) | 2013-07-19 | 2019-02-12 | Dresser, Llc | Valve assembly having dual functionality for directional control of a piston on a fluid actuated device |
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| Publication number | Publication date |
|---|---|
| CN101886709A (en) | 2010-11-17 |
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Owner name: ZHEJIANG SANHUA GROUP CO., LTD. Free format text: FORMER OWNER: SANHUA REFRIGERATION GROUP CO., LTD., ZHEJANG Effective date: 20140619 |
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Effective date of registration: 20140619 Address after: 312500 Zhejiang city of Shaoxing province Xinchang County Chengguan town of Liquan Patentee after: Zhejiang Sanhua Group Co., Ltd. Address before: 312500 Liquan village of Zhejiang County in Xinchang Province town under Patentee before: Sanhua Refrigeration Group Co., Ltd., Zhejang |
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Address after: 312500 Xinchang, Zhejiang Qixing street under the Liquan Patentee after: Zhejiang three flower intelligent control Limited by Share Ltd Address before: 312500 Zhejiang city of Shaoxing province Xinchang County Chengguan town of Liquan Patentee before: Zhejiang Sanhua Group Co., Ltd. |
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