CN102434686B - Bistable-state solenoid valve - Google Patents
Bistable-state solenoid valve Download PDFInfo
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- CN102434686B CN102434686B CN201110409353.3A CN201110409353A CN102434686B CN 102434686 B CN102434686 B CN 102434686B CN 201110409353 A CN201110409353 A CN 201110409353A CN 102434686 B CN102434686 B CN 102434686B
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- valve
- positioning seat
- seat
- hole
- core assembly
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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, in especially a kind of refrigeration system, control the bistable electromagnetic valve of refrigeration agent circulation path.
Background technique
Existing bistable electromagnetic valve is comprised of coil and valve body body, a kind of bistable electromagnetic valve as disclosed in the patent of invention of notice of authorization CN201232774, just belong to this structure, it comprises field coil, valve body parts forms, field coil is sleeved on valve body parts excircle, valve body parts comprises the list that the sleeve pipe made by the thin walled tube of non-magnetic material and two ends are made by magnetic conductive material, diplopore utmost point valve seat, in sleeve pipe, have again a thin walled tube that make with small casing sleeve pipe arranged coaxial, mangetic core assembly can move back and forth in small casing, between sleeve pipe and small casing, radially both sides are provided with the permanent magnet that a pair of homopolarity is relative, for the lengthwise position of fixed permanent magnet on sleeve pipe, at permanent magnet two ends and list, between diplopore and valve seat, be respectively equipped with a fixed body of being made by 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 " without electric self-locking ".When needs change refrigerant flow direction, to field coil, pass to instantaneous reverse DC pulse current, field coil is produced with permanent magnet in valve pocket and make the reverse pulsed magnet field of mangetic core assembly polarizing magnetic field, actuating valve core assembly moves to opposite side, reach effective laminating with the valve seat valve port of opposite side, field coil loses magnetic field diminishes, and mangetic core assembly relies on magnetic field and the valve seat that the permanent magnet of both sides between sleeve pipe and small casing produces to keep stable state, realizes the commutation of refrigeration agent circulation path.
The bistable electromagnetic valve of above structure, its small casing is the nonmagnetic thin walled tube that drawing processes as stainless strip, or the accurate Stainless Steel Tube of highi degree of accuracy, so manufacture cost is high; While particularly specifically implementing, for forming MEDIA FLOW passage, make breach etc. in small casing, the burr of its formation extremely difficulty removes, and brings hidden danger to the working stability of valve.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, the invention provides that a kind of structure is simple, cost is low, and whole valve body parts is easily manufactured, the low-cost bistable electromagnetic valve of reliable performance.
The present invention is achieved through the following technical solutions:
Bistable electromagnetic valve, comprise field coil, valve body parts, mangetic core assembly and permanent magnet, field coil is sleeved on valve body parts outside, diplopore valve seat and single hole valve seat that valve body parts comprises the sleeve pipe of non-magnetic material system and made by magnetic conductive material, mangetic core assembly is arranged in sleeve pipe, a positioning seat with central through bore is set in described sleeve pipe, mangetic core assembly is arranged in the central through bore of this positioning seat, one end of positioning seat is communicated with diplopore valve seat, the other end of positioning seat is communicated with single hole valve seat, described permanent magnet is engaged in the outer peripheral surface of positioning seat slidably, one end of permanent magnet and an end in contact that is enclosed within the Compress Spring on positioning seat, the other end of Compress Spring is resisted against on the step surface of single hole valve seat setting.
The present invention substitutes by positioning seat small casing and the permanent magnet fixed body that existing non-magnetic material is made, therefore simple in structure, and part reduces, and easy to manufacture, cost is low; The positioning seat of making due to plastics again can absorption of noise, thus mangetic core assembly impact noise will be seldom while moving in positioning seat, can make bistable electromagnetic valve quiet when work.
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
Accompanying drawing explanation
Fig. 1 is a kind of embodiment's of bistable electromagnetic valve of the present invention longitudinal section;
Fig. 2 a is the vertical sectional plan view of positioning seat in Fig. 1 embodiment of the present invention;
Fig. 2 b is the left view of Fig. 2 a;
Fig. 2 c is the plan view of positioning seat in Fig. 1 embodiment of the present invention;
Fig. 2 d is the shaft side figure of positioning seat in Fig. 1 embodiment of the present invention;
Fig. 3 a is the longitudinal section of permanent magnet in Fig. 1 embodiment of the present invention;
Fig. 3 b is this Fig. 3 a left view;
In accompanying drawing, I is that field coil, II are that valve body parts, a are valve port, and b is valve port, c is valve port, and d is through hole, and 10 is diplopore valve seat, 11 for taking over, and 12 for taking over, and 20 is single hole valve seat, 21 for taking over, and 30 is sleeve pipe, and 40 is Compress Spring, 50 is permanent magnet, and 60 is mangetic core assembly, and 61 is sealing plug, 62 is spacing block, 63 is back-up ring, and 64 is valve core, and 70 is the first sleeve, 71 is the second sleeve, 70a is magnet fitting recess, and 70b is vent slot, and 70c is ventilating hole, through hole centered by 70d, 70f is conical bore.
Embodiment
In order to make those skilled in the art better understand technological scheme of the present invention, below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
As Fig. 1, bistable electromagnetic valve of the present invention, it is comprised of field coil I, valve body parts II, mangetic core assembly 60, positioning seat, permanent magnet 50 and Compress Spring, below the relation between every part and each several part is elaborated:
As Fig. 1, field coil I is sleeved on valve body parts outside, field coil I is passed to the electric current of different direction, and field coil I can produce the magnetic field of alternation, thereby makes mangetic core assembly have different moving direction.
As Fig. 1, valve body parts II is by the sleeve pipe 30 of non-magnetic material system and the diplopore valve seat 10 and single hole valve seat 20 of being made by magnetic conductive material.Sleeve pipe 30 one end 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, as SUS304 material steel pipe, with diplopore valve seat 10, the 20 use 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 refrigerator refrigeration system, use, therefore, diplopore valve seat 10 is provided with two through holes, and these two through holes are fixedly connected with adapter 11 and are taken over 12 by the mode of welding respectively.Communicate with taking over the valve port a that 11 through holes that communicate locate to be provided with diplopore valve seat 10 other ends, take over 11 actual be first to go out gas/liquid pipe.Be connected with the conical bore 70f of positioning seat with adapter 12 through holes that communicate, take over 12 reality for entering gas/liquid pipe.Single hole valve seat 20 is provided with a through hole and is welded with an adapter 21 being communicated with this through hole, communicates with the valve port b that single hole valve seat 20 places, other ends are provided with adapter 21 through holes that communicate.Valve port b matches with positioning seat small end inner via hole, at valve port b, communicates 21 with adapter, and taking over 21 is second to go out gas/liquid pipe.Single hole valve seat, diplopore valve seat and take over 11, take over 12, take over 21 be connected, can be soldering, also can be with welding such as energy storage weldings, and reliable to keep connecting, sealing is stable.
As Fig. 1, mangetic core assembly 60 is comprised 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 made by irony magnetic conductive material, in the bottom of valve core 64, be provided with a small through hole c, fitting tight plug 61, spacing block 62, sealing plug 61 (with two sealing plugs 61, spacing block 62 being clamped between two sealing plugs) successively in the through hole of valve core 64, after blocking with back-up ring 63 again, by crimping, fix, back-up ring 63 is circular, has a through hole d on back-up ring 63.Mangetic core assembly 60 has two working positions in the through hole 70d of positioning seat, when mangetic core assembly 60 is near left end as shown in Figure 1, at this moment mangetic core assembly 60 contacts and seals with the valve port a of diplopore valve seat 10, and under the magnetic force of the permanent magnet outside positioning seat 50, keep fixing, at this moment valve port a is blocked and realizes sealing.Mobile also near after right-hand member under the electromagnetic force of mangetic core assembly 60 at field coil, field coil power-off, at this moment mangetic core assembly 60 contacts and seals with the valve port b of single hole valve seat 20, and under the magnetic force of the permanent magnet on positioning seat 70 50, keep fixing, at this moment valve port b is blocked and realizes sealing.
As shown in Figure 1, Figure 2 shown in a, 2b, 2c, 2d, in the present embodiment, sleeve pipe 30 is interior arranges a positioning seat with central through bore 70d, and mangetic core assembly 60 is arranged in the central through bore of this positioning seat, one end of positioning seat is communicated with diplopore valve seat, and the other end of positioning seat is communicated with single hole valve seat.Positioning seat is that non-magnetic material is made, and positioning seat can adopt the nylon of resistance to refrigeration agent and refrigeration oil, or teflon, or polyphenyl is combed the positioning seat that the injection moulding of ether plastic warp is made.Positioning seat comprises that the first sleeve 70 and the second sleeve 71, the first sleeves 70 are enclosed within on the second sleeve 71.The circumferential surface of the first sleeve 70 is provided with and is parallel to the axial vent slot 70b of this first sleeve, and wall one end of the first sleeve 70 endoporus is the conical surface, is therefore shaped to conical bore 70f, and this conical bore 70f communicates with the central through bore 70d of the first sleeve 70.The excircle of the first sleeve 70 is provided with magnet fitting recess 70a, and magnet fitting recess 70a is fan-shaped.Magnet fitting recess is axially parallel with the first sleeve 70, the mode that permanent magnet 50 can be slidably matched is assemblied in this magnet fitting recess 70a, the axially locating not only one end of permanent magnet 50 being formed by magnet fitting recess 70a, but also to the whole formation of permanent magnet radial location.One end of the second sleeve is provided with exposed ventilating hole 70c, and the first sleeve 70 is not fully by the second sleeve 71 parcels, and therefore, the ventilating hole 70c on the second sleeve is naked state.Vent slot 70b, ventilating hole 70c can be one, also can be symmetrical arranged a plurality of.
As 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 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 when work in lengthwise position, one end of permanent magnet 50 and an end in contact that is enclosed within the Compress Spring 40 on positioning seat, the other end of Compress Spring 40 is resisted against on the step surface that single hole valve seat 20 arranges.Compress Spring 40 is 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 the second sleeve 71.During work, Compress Spring 40 is in compressive state, and its spring-compressed power presses to diplopore valve seat 10 by permanent magnet 50, realizes permanent magnet 50 axial restraints.Compress Spring 40 is Cuprum alloy or stainless Compress Spring, is preferably nonmagnetic Stainless Steel Wire and makes.
The working principle process of bistable electromagnetic valve of the present invention in refrigerator pipe-line system is as follows:
Under normal circumstances, the valve seat valve port that the magnetic field that permanent magnet 50 produces makes mangetic core assembly 60 and adhesive reaches effective adhesive and maintenance as the valve port a of diplopore valve seat 10, now, close 61 Transverse planes of sealing in mangetic core assembly 60 and the valve port a of diplopore valve seat 10 laminating, taking over 11 turn-offs, gas, liquid fluid from take over 12 by the vent slot 70b positioning seat to positioning seat 70 small end ventilating hole 70c, then flow out and take over 21 from the valve port b of single hole valve seat 20.When needs change refrigerant flow direction, pass to instantaneous reverse DC pulse current to field coil I, make field coil I make the reverse pulsed magnet field of mangetic core assembly 60 polar fluxs in the interior generation of sleeve pipe 30 and permanent magnet 50, actuating valve core assembly 60 moves to single hole valve seat 20 directions along positioning seat inner via hole, until the valve port b of sealing gasket 61 Transverse planes and single hole valve seat 20 reaches effective laminating in mangetic core assembly 60, field coil I loses magnetic field diminishes, 60 of mangetic core assemblies rely on magnetic flux and the single hole valve seat 20 that permanent magnet 50 produces to keep stable state, realize " without electric self-locking ", now, taking over 21 turn-offs because valve port b is blocked sealing, gas/liquid fluid flows into adapter 11 from taking over the 12 valve port a by positioning seat left end conical bore 70f and diplopore valve seat 10, thereby realize the commutation of refrigeration agent circulation path.
Compared with prior art, bistable electromagnetic valve of the present invention, owing to having adopted the small casing being processed from strand by stainless steel materials, high-accuracy nonmagnetic Stainless Steel Tube and a permanent magnet fixed body that is substituted the alternative existing structure of the helical spring of being made by sheet material, high-precision non-magnetic material wire rod of existing structure by the positioning seat of the injection moldeds such as nylon, PPS plastics, therefore simple in structure, part is few, easy to manufacture, cost is low; The positioning seat of making due to plastics again can absorption of noise, so mangetic core assembly 60 impact noise when positioning seat inner via hole moves will be very little, can use bistable electromagnetic valve quiet when work.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of this 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 (2)
1. a 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 valve body parts outside, diplopore valve seat (10) and single hole valve seat (20) that valve body parts (II) comprises the sleeve pipe (30) of non-magnetic material system and made by magnetic conductive material, mangetic core assembly is arranged in sleeve pipe (30), it is characterized in that: a positioning seat with central through bore is set in described sleeve pipe, mangetic core assembly is arranged in the central through bore of this positioning seat, one end of positioning seat is communicated with diplopore valve seat, the other end of positioning seat is communicated with single hole valve seat, described permanent magnet (50) is engaged in the outer peripheral surface of positioning seat slidably, one end of permanent magnet and an end in contact that is enclosed within the Compress Spring (40) on positioning seat, the other end of Compress Spring is resisted against on the step surface of single hole valve seat setting, described positioning seat is the positioning seat that non-magnetic material is made, described positioning seat is teflon, or the positioning seat of polyphenyl comb ether plastics, described positioning seat comprises the first sleeve (70) and the second sleeve (71), the first sleeve (70) is enclosed within on the second sleeve (71), the circumferential surface of the first sleeve (70) is provided with and is parallel to the axial vent slot of this first sleeve (70b), one end of the second sleeve is provided with exposed ventilating hole (70c), the excircle of described the first sleeve (70) is provided with magnet fitting recess (70a),
Mangetic core assembly (60) is by sealing plug (61), spacing block (62), back-up ring (63) and valve core (64) form, valve core (64) is the cylindrical body with through hole of being made by irony magnetic conductive material, in the bottom of valve core (64), be provided with a small through hole (c), fitting tight plug (61) successively in the through hole of valve core (64), spacing block (62), sealing plug (61), after using again back-up ring (63) to block, by crimping, fix, back-up ring (63) is circular, on back-up ring (63), there is a through hole (d), mangetic core assembly (60) has two working positions in the through hole (70d) of positioning seat, during the close left end of mangetic core assembly (60), at this moment mangetic core assembly (60) contacts and seals with the valve port (a) of diplopore valve seat (10), and under the magnetic force of the permanent magnet outside positioning seat (50), keep fixing, at this moment valve port (a) is blocked and realizes sealing, mobile also near after right-hand member under the electromagnetic force of mangetic core assembly (60) at field coil, field coil power-off, at this moment mangetic core assembly (60) contacts and seals with the valve port (b) of single hole valve seat (20), and under the magnetic force of the permanent magnet on positioning seat (50), keep fixing, at this moment valve port (b) is blocked and realizes sealing.
2. bistable electromagnetic valve according to claim 1, is characterized in that: described Compress Spring (40) is Cuprum alloy or stainless Compress 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 CN102434686A (en) | 2012-05-02 |
| CN102434686B true CN102434686B (en) | 2014-01-22 |
Family
ID=45982926
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) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| DE102016216347A1 (en) * | 2016-08-30 | 2018-03-01 | Robert Bosch Gmbh | Valve anchor and valve cartridge for a solenoid valve |
| CN106439122B (en) * | 2016-11-10 | 2019-02-22 | 多立恒（北京）能源技术股份公司 | Cylinder for liquefied gas and its safety valve |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2820878B1 (en) * | 2001-02-15 | 2004-04-02 | Soderep Ecans Sa | IMPROVEMENT TO A BISTABLE DEVICE FOR TRANSLATING A MOBILE AXIS |
| 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 |
-
2011
- 2011-12-10 CN CN201110409353.3A patent/CN102434686B/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN102434686A (en) | 2012-05-02 |
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| 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 |