CN102434686A - Bistable-state solenoid valve - Google Patents
Bistable-state solenoid valve Download PDFInfo
- Publication number
- CN102434686A CN102434686A CN2011104093533A CN201110409353A CN102434686A CN 102434686 A CN102434686 A CN 102434686A CN 2011104093533 A CN2011104093533 A CN 2011104093533A CN 201110409353 A CN201110409353 A CN 201110409353A CN 102434686 A CN102434686 A CN 102434686A
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- positioning seat
- valve
- seat
- sleeve
- permanent magnet
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Abstract
The invention discloses a bistable-state solenoid valve, comprising an exciting coil, a valve body part, a valve core assembly and a permanent magnet, wherein the exciting coil is sleeved outside the valve body part; the valve body part comprises a casing pipe made of a non-magnetic-conducting material as well as a dual-hole valve seat and a single-hole valve seat which are made of magnetic-conducting materials; the valve core assembly is arranged in the casing pipe; a positioning seat provided with a central through hole is arranged in the casing pipe; the valve core assembly is arranged in the central through hole of the positioning seat; one end of the positioning seat is communicated with the dual-hole valve seat, and the other end of the positioning seat is communicated with the single-hole valve seat; the permanent magnet is glidingly matched on the outer circumferential face of the positioning seat; one end of the permanent magnet is in contact with a compression spring sleeved on the positioning seat; and the other end of the compression spring is abutted against a step face arranged on the single-hole valve seat. The bistable-state solenoid valve disclosed by the invention is simpler in structure and low in cost, and the entire valve body part is easy to manufacture and reliable in performance.
Description
Technical field
The present invention relates to a kind of solenoid valve, the bistable electromagnetic valve of control refrigeration agent circulation path in especially a kind of refrigeration system.
Background technique
Existing bistable electromagnetic valve is made up of coil and valve body body; Like the disclosed a kind of bistable electromagnetic valve of the patent of invention of notice of authorization CN201232774; Just belong to this structure, it comprises field coil, valve body parts composition, and field coil is sleeved on the valve body parts excircle; Valve body parts comprises the single, double hole utmost point valve seat that the sleeve pipe processed by the thin walled tube of non-magnetic material and two ends are processed by magnetic conductive material; In sleeve pipe, have again a thin walled tube that process with the small casing sleeve pipe arranged coaxial, mangetic core assembly can move back and forth in small casing, radially both sides are provided with a pair of homopolarity permanent magnet opposed between sleeve pipe and small casing; Be the lengthwise position of fixed permanent magnet on sleeve pipe, between permanent magnet two ends and single, double hole and valve seat, respectively be equipped with the fixed body processed by the non-magnetic material; The magnetic field that permanent magnet produces makes mangetic core assembly and a side valve seat valve mouth of adhesive reach effective adhesive and maintenance, realizes " not having electric self-locking ".When needs change refrigerant flow direction; Pass to instantaneous reverse dc pulse current to field coil, field coil is produced in valve pocket with permanent magnet make the reverse pulsed magnet field of mangetic core assembly polarizing magnetic field, the actuating valve core assembly moves to opposite side; Reach effective applying with the valve seat valve port of opposite side; Field coil dead electricity magnetic field disappears, and magnetic field and valve seat that mangetic core assembly then relies on the permanent magnet of both sides between sleeve pipe and small casing to produce keep stable state, realize the switching-over of refrigeration agent circulation path.
The bistable electromagnetic valve of above structure, its small casing are the nonmagnetic thin walled tubes that drawing processes like stainless strip, or the accurate Stainless Steel Tube of highi degree of accuracy, so manufacture cost is high; Particularly during practical implementation, for forming the MEDIA FLOW passage, in small casing, process breach etc., the burr of its formation extremely difficulty goes only, brings hidden danger to the working stability of valve.
Summary of the invention
The present invention is directed to the deficiency of existing technology, the present invention provides that a kind of structure is simple, cost is low, and the whole valve body parts are made easily, the low-cost bistable electromagnetic valve of reliable performance.
The present invention realizes through following technological scheme:
Bistable electromagnetic valve; Comprise field coil, valve body parts, mangetic core assembly and permanent magnet, field coil is sleeved on the valve body parts outside, and valve body parts comprises the sleeve pipe of non-magnetic material system and diplopore valve seat and the single hole valve seat of being processed by magnetic conductive material; Mangetic core assembly is arranged in the sleeve pipe; Positioning seat with central through bore is set in the said sleeve pipe, and mangetic core assembly is arranged in the central through bore of this positioning seat, and an end of positioning seat is communicated with the diplopore valve seat; The other end of positioning seat is communicated with the single hole valve seat; Said permanent magnet is engaged in the outer peripheral surface of positioning seat slidably, an end of permanent magnet and an end in contact that is enclosed within the pressure spring on the positioning seat, and the other end of pressure spring is resisted against on the step surface of single hole valve seat setting.
The present invention substitutes a small casing and the permanent magnet fixed body that existing non-magnetic material is processed through positioning seat, and is therefore simple in structure, and part reduces, and easy to manufacture, cost is low; Again because the positioning seat processed of plastics can absorption of noise, thus mangetic core assembly impact noise will seldom when in positioning seat, moving, can make bistable electromagnetic valve quiet when working.
Below in conjunction with accompanying drawing and embodiment the present invention is described further.
Description of drawings
Fig. 1 is a kind of embodiment's of a bistable electromagnetic valve of the present invention longitudinal section;
Fig. 2 a is that the vertical profile of positioning seat among Fig. 1 embodiment of the present invention is looked plan view;
Fig. 2 b is the left view of Fig. 2 a;
Fig. 2 c is the plan view of positioning seat among Fig. 1 embodiment of the present invention;
Fig. 2 d is the shaft side figure of positioning seat among Fig. 1 embodiment of the present invention;
Fig. 3 a is the longitudinal section of permanent magnet among Fig. 1 embodiment of the present invention;
Fig. 3 b is this Fig. 3 a left view;
In the accompanying drawing, I is that field coil, II are that valve body parts, a are valve port, and b is a valve port, and c is a valve port, and d is a through hole; 10 is the diplopore valve seat, and 11 for taking over, and 12 for taking over, and 20 is the single hole valve seat, and 21 for taking over; 30 is sleeve pipe, and 40 is pressure spring, and 50 is permanent magnet, and 60 is mangetic core assembly, and 61 is sealing plug; 62 is spacing block, and 63 is back-up ring, and 64 is valve core, and 70 is first sleeve, and 71 is second sleeve; 70a is the magnet fitting recess, and 70b is a vent slot, and 70c is a ventilating hole, and 70d is a central through bore, and 70f is a conical bore.
Embodiment
In order to make those skilled in the art better understand technological scheme of the present invention, the present invention is done further detailed description below in conjunction with accompanying drawing and embodiment.
Like Fig. 1, bistable electromagnetic valve of the present invention, it is made up of field coil I, valve body parts II, mangetic core assembly 60, positioning seat, permanent magnet 50 and pressure spring, is elaborated in the face of the relation between every part and the each several part down:
Like Fig. 1, field coil I is sleeved on the valve body parts outside, and field coil I is passed to the electric current of different direction, and field coil I can produce alternating magnetic fields, thereby makes mangetic core assembly have different moving direction.
Like Fig. 1, valve body parts II is by the sleeve pipe 30 of non-magnetic material system and the diplopore valve seat of being processed by magnetic conductive material 10 and single hole valve seat 20.Sleeve pipe 30 1 ends are enclosed within on the outer peripheral surface of diplopore valve seat 10, and sleeve pipe 30 the other ends are enclosed within on the outer peripheral surface of single hole valve seat 20.Sleeve pipe 30 can be non-magnetic Stainless Steel Tube, like SUS304 material steel pipe, with diplopore valve seat 10, the 20 usefulness argon arc weldings of single hole valve seat, laser beam welding welded seal.Because bistable electromagnetic valve embodiment illustrated in fig. 1 is mounted in the refrigerator refrigeration system and uses, therefore, diplopore valve seat 10 is provided with two through holes, and these two through holes are fixedly connected adapter 11 and take over 12 through the mode of welding respectively.Communicate with the valve port a that diplopore valve seat 10 other ends are located to be provided with taking over 11 through holes that communicate, take over 11 actual be first to give vent to anger/the liquid pipe.The through hole that communicates with adapter 12 is connected with the conical bore 70f of positioning seat, takes over 12 reality and is air inlet/liquid pipe.Single hole valve seat 20 is provided with a through hole and is welded with the adapter 21 that is communicated with this through hole, and takes over 21 through holes that communicate and communicates with the valve port b that single hole valve seat 20 other ends are located to be provided with.Valve port b matches with positioning seat small end inner via hole, communicates 21 at valve port b with adapter, and taking over 21 is second to give vent to anger/the liquid pipe.Single hole valve seat, diplopore valve seat and take over 11, take over 12, take over 21 be connected can be solderings, also can be with welding such as energy storage weldings, and reliable to keep connecting, sealing is stable.
Like Fig. 1; Mangetic core assembly 60 is made up of sealing plug 61, spacing block 62, back-up ring 63 and valve core 64; Valve core 64 is cylindrical bodys with through hole of being processed by the irony magnetic conductive material; Be provided with a small through hole c in the bottom of valve core 64, fitting tight plug 61, spacing block 62, sealing plug 61 (promptly with two sealing plugs 61 spacing block 62 being clamped between two sealing plugs) successively in the through hole of valve core 64 block the back with back-up ring 63 again and fix through crimping; Back-up ring 63 is circular, and a through hole d is arranged on the back-up ring 63.Mangetic core assembly 60 has two working positions in the through hole 70d of positioning seat; Mangetic core assembly 60 as shown in Figure 1 is during near left end; At this moment mangetic core assembly 60 contacts with the valve port a of diplopore valve seat 10 and seals; And keep fixing under the magnetic force of the permanent magnet outside positioning seat 50, at this moment valve port a is stopped and realizes sealing.When move under the electromagnetic force effect of mangetic core assembly 60 at field coil and near right-hand member after; The field coil outage; At this moment mangetic core assembly 60 contacts with the valve port b of single hole valve seat 20 and seals; And under the magnetic force of the permanent magnet on the positioning seat 70 50, keep fixing, at this moment valve port b is stopped and realizes sealing.
Shown in Fig. 1, Fig. 2 a, 2b, 2c, 2d; In the present embodiment, a positioning seat with central through bore 70d is set in the sleeve pipe 30, mangetic core assembly 60 is arranged in the central through bore of this positioning seat; One end of positioning seat is communicated with the diplopore valve seat, and the other end of positioning seat is communicated with the single hole valve seat.Positioning seat is processed for the non-magnetic material, and positioning seat can adopt the nylon of anti-refrigeration agent and refrigeration oil, perhaps teflon, the perhaps positioning seat processed through injection moulding of polyphenyl comb ether plastics.Positioning seat comprises that first sleeve 70 and second sleeve, 71, the first sleeves 70 are enclosed within on second sleeve 71.The circumferential surface of first sleeve 70 be provided be parallel to this first quill to vent slot 70b, therefore wall one end of first sleeve, 70 endoporus is the conical surface, is shaped to conical bore 70f, this conical bore 70f communicates with the central through bore 70d of first sleeve 70.The excircle of first sleeve 70 is provided with magnet fitting recess 70a, and magnet fitting recess 70a is fan-shaped.The magnet fitting recess axially is parallel with first sleeve 70; The mode that permanent magnet 50 can be slidingly matched is assemblied in this magnet fitting recess 70a; The axially locating that not only an end of permanent magnet 50 is formed through magnet fitting recess 70a, but also form radial location to permanent magnet is whole.One end of second sleeve is provided with exposed ventilating hole 70c, and fully with second sleeve, 71 parcels, therefore, the ventilating hole 70c on second sleeve is not naked state to first sleeve 70.Vent slot 70b, ventilating hole 70c can be one, also can be symmetrical set a plurality of.
Shown in Fig. 1, Fig. 3 a, 3b; Permanent magnet 50 is engaged in the outer peripheral surface of positioning seat slidably, and permanent magnet 50 is fan-shaped, and its material is a Nd-Fe-B permanent magnet; Two fan-shaped permanent magnets 50 are radial magnetizing, the upper magnet fitting recess 70a that is arranged on positioning seat that same polarity is relative.
For fixed permanent magnet 50 motionless in lengthwise position in when work, an end of permanent magnet 50 and an end in contact that is enclosed within the pressure spring 40 on the positioning seat, the other end of pressure spring 40 is resisted against on the step surface that single hole valve seat 20 is provided with.Pressure spring 40 is a cylindrical spring, and its external diameter is slightly less than sleeve pipe 30 internal diameters, and its internal diameter is greater than the external diameter of second sleeve 71.Pressure spring 40 is in compressive state during work, and its length of spring compressed power is pressed to diplopore valve seat 10 with permanent magnet 50, realizes permanent magnet 50 axial restraints.Pressure spring 40 is Cuprum alloy or stainless pressure spring, is preferably nonmagnetic Stainless Steel Wire and processes.
The working principle process of bistable electromagnetic valve of the present invention in the refrigerator pipe-line system is following:
Under normal circumstances; The magnetic field that permanent magnet 50 produces makes mangetic core assembly 60 and a valve seat valve port of adhesive such as the valve port a of diplopore valve seat 10 reach effective adhesive and maintenance; At this moment, the valve port a of close 61 Transverse planes of the sealing in the mangetic core assembly 60 and diplopore valve seat 10 fits, and takes over 11 and turn-offs; Gas, flow body from take over 12 through the vent slot 70b on the positioning seat to positioning seat 70 small end ventilating hole 70c, flow out from the valve port b of single hole valve seat 20 again and take over 21.When needs change refrigerant flow direction; Pass to instantaneous reverse dc pulse current for field coil I, field coil I is produced in sleeve pipe 30 with permanent magnet 50 make the reverse pulsed magnet field of mangetic core assembly 60 polar fluxs, actuating valve core assembly 60 moves to single hole valve seat 20 directions along the positioning seat inner via hole; The valve port b of sealing gasket 61 Transverse planes and single hole valve seat 20 reaches effective applying in mangetic core assembly 60; Field coil I dead electricity magnetic field disappears, and magnetic flux and single hole valve seat 20 that 60 of mangetic core assemblies rely on permanent magnet 50 to produce keep stable state, realize " not having electric self-locking "; At this moment; Adapter 21 is turn-offed because of valve port b stops sealing, and gas/flow body flows into adapter 11 from taking over the 12 valve port a through positioning seat left end conical bore 70f and diplopore valve seat 10, thus the switching-over of realization refrigeration agent circulation path.
Compared with prior art; Bistable electromagnetic valve of the present invention; Because adopted the helical spring of being processed by sheet material, high-precision non-magnetic material wire rod that substitutes existing structure by the positioning seat of injection moldeds such as nylon, PPS plastics to substitute the small casing and the permanent magnet fixed body that are processed from strand by stainless steel materials, high-accuracy nonmagnetic Stainless Steel Tube of existing structure, therefore simple in structure, part is few; Easy to manufacture, cost is low; Again because the positioning seat processed of plastics can absorption of noise, so mangetic core assembly 60 impact noise when the positioning seat inner via hole moves will very little, can use bistable electromagnetic valve quiet when working.
The above only is a preferred implementation of the present invention; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from this principle of the invention; Can also make some improvement and retouching, these improvement and retouching also should be regarded as protection scope of the present invention.
Claims (6)
1. bistable electromagnetic valve; Comprise field coil (I), valve body parts (II), mangetic core assembly (60) and permanent magnet (50), field coil (I) is sleeved on the valve body parts outside, and valve body parts (II) comprises the sleeve pipe (30) of non-magnetic material system and the diplopore valve seat of being processed by magnetic conductive material (10) and single hole valve seat (20); Mangetic core assembly is arranged in the sleeve pipe (30); It is characterized in that: a positioning seat with central through bore is set in the said sleeve pipe, and mangetic core assembly is arranged in the central through bore of this positioning seat, and an end of positioning seat is communicated with the diplopore valve seat; The other end of positioning seat is communicated with the single hole valve seat; Said permanent magnet (50) is engaged in the outer peripheral surface of positioning seat slidably, an end of permanent magnet and an end in contact that is enclosed within the pressure spring (40) on the positioning seat, and the other end of pressure spring is resisted against on the step surface of single hole valve seat setting.
2. bistable electromagnetic valve positioning seat according to claim 1; It is characterized in that: said positioning seat comprises first sleeve (70) and second sleeve (71); First sleeve (70) is enclosed within on second sleeve (71); The circumferential surface of first sleeve (70) be provided be parallel to this first quill to vent slot (70b), an end of second sleeve is provided with exposed ventilating hole (70c).
3. bistable electromagnetic valve positioning seat according to claim 2 is characterized in that: the excircle of said first sleeve (70) is provided with magnet fitting recess (70a).
4. bistable electromagnetic valve according to claim 1 is characterized in that: the positioning seat that said positioning seat is processed for the non-magnetic material.
5. bistable electromagnetic valve according to claim 4 is characterized in that: said positioning seat is a nylon, perhaps teflon, the perhaps positioning seat of polyphenyl comb ether plastics.
6. bistable electromagnetic valve according to claim 1 is characterized in that: said pressure spring (40) is Cuprum alloy or stainless pressure spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110409353.3A CN102434686B (en) | 2011-12-10 | 2011-12-10 | Bistable-state solenoid valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110409353.3A CN102434686B (en) | 2011-12-10 | 2011-12-10 | Bistable-state solenoid valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102434686A true CN102434686A (en) | 2012-05-02 |
| CN102434686B CN102434686B (en) | 2014-01-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110409353.3A Expired - Fee Related CN102434686B (en) | 2011-12-10 | 2011-12-10 | Bistable-state solenoid valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102434686B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105987205A (en) * | 2015-02-04 | 2016-10-05 | 浙江三花股份有限公司 | Bistable solenoid valve and refrigerating system |
| CN106439122A (en) * | 2016-11-10 | 2017-02-22 | 多立恒（北京）能源技术股份公司 | Liquefied gas steel cylinder and safety valve thereof |
| CN109641580A (en) * | 2016-08-30 | 2019-04-16 | 罗伯特·博世有限公司 | Valve armature and spool for solenoid valve |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2002065497A1 (en) * | 2001-02-15 | 2002-08-22 | Soderep-Ecans Holding | Bistable translation manoeuvring device for a movable spindle |
| 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 |
| CN101424348A (en) * | 2007-10-29 | 2009-05-06 | 浙江三花制冷集团有限公司 | Bistable magnetic valve |
| CN201351758Y (en) * | 2008-12-26 | 2009-11-25 | 浙江三花制冷集团有限公司 | Bistable electromagnetic valve |
-
2011
- 2011-12-10 CN CN201110409353.3A patent/CN102434686B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002065497A1 (en) * | 2001-02-15 | 2002-08-22 | Soderep-Ecans Holding | Bistable translation manoeuvring device for a movable spindle |
| 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 |
| CN101424348A (en) * | 2007-10-29 | 2009-05-06 | 浙江三花制冷集团有限公司 | Bistable magnetic valve |
| CN201232774Y (en) * | 2008-05-28 | 2009-05-06 | 浙江三花制冷集团有限公司 | Bistable magnetic valve |
| CN201351758Y (en) * | 2008-12-26 | 2009-11-25 | 浙江三花制冷集团有限公司 | Bistable electromagnetic valve |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105987205A (en) * | 2015-02-04 | 2016-10-05 | 浙江三花股份有限公司 | Bistable solenoid valve and refrigerating system |
| CN105987205B (en) * | 2015-02-04 | 2019-06-18 | 浙江三花智能控制股份有限公司 | Bistable electromagnetic valve and refrigeration system |
| CN109641580A (en) * | 2016-08-30 | 2019-04-16 | 罗伯特·博世有限公司 | Valve armature and spool for solenoid valve |
| CN109641580B (en) * | 2016-08-30 | 2021-04-09 | 罗伯特·博世有限公司 | Valve armature and valve cartridge for a solenoid valve |
| CN106439122A (en) * | 2016-11-10 | 2017-02-22 | 多立恒（北京）能源技术股份公司 | Liquefied gas steel cylinder and safety valve thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102434686B (en) | 2014-01-22 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: CHANGZHOU LUSI ELECTRIC APPLIANCE CO., LTD. Free format text: FORMER NAME: CHANGZHOU CHANGHENGLUSI ELECTRIC APPLIANCES CO., LTD. |
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| CP01 | Change in the name or title of a patent holder |
Address after: 213127, Xinhua Town, Xinbei Town, Xinbei District, Jiangsu, Changzhou Patentee after: CHANGZHOU LUSI ELECTRIC APPLIANCE CO., LTD. Address before: 213127, Xinhua Town, Xinbei Town, Xinbei District, Jiangsu, Changzhou Patentee before: Changzhou Changheng Ruth Appliance Co., Ltd. |
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| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 213127, Xinhua Town, Xinbei Town, Xinbei District, Jiangsu, Changzhou Patentee after: Changzhou Changheng Ruth Appliance Co., Ltd. Address before: 213127, Xinhua Town, Xinbei Town, Xinbei District, Jiangsu, Changzhou Patentee before: CHANGZHOU LUSI ELECTRIC APPLIANCE CO., LTD. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140122 Termination date: 20171210 |