CN202451936U - Solenoid valve - Google Patents
Solenoid valve Download PDFInfo
- Publication number
- CN202451936U CN202451936U CN2011204947765U CN201120494776U CN202451936U CN 202451936 U CN202451936 U CN 202451936U CN 2011204947765 U CN2011204947765 U CN 2011204947765U CN 201120494776 U CN201120494776 U CN 201120494776U CN 202451936 U CN202451936 U CN 202451936U
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- CN
- China
- Prior art keywords
- iron core
- sealing
- spool
- mounting groove
- solenoid valve
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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 discloses a solenoid valve comprising a valve seat arranged on the lower end of a conduit and a movable iron core sliding in the conduit, wherein a medium inlet and a medium outlet are formed on the valve seat, a valve opening is arranged between the medium inlet and the medium outlet in the valve seat, a sealing element corresponding to the valve opening opens or closes the valve opening along with the action of the movable iron core and is arranged in the lower end of the movable iron core, a valve core is arranged between the movable iron core and the sealing element, a medium passage communicating the medium inlet with a centre hole in the movable iron core is arranged in the valve core, a through hole communicating the valve opening with the medium passage is arranged in the sealing element, a pressing spring is used for pressing the sealing element towards the valve core so as to seal the through hole through the valve core and is arranged between the sealing element and the movable iron core, and the diameter of the through hole is smaller than that of the valve opening. The solenoid valve disclosed by the utility model has a simple structure, is convenient to manufacture, does not increase cost and can be successfully and reliably opened under a relatively high pressure difference condition.
Description
Technical field
The utility model relates to a kind of solenoid valve.
Background technique
Electromagnetic valve structure of the prior art is as shown in Figure 1; Comprise electromagnetic coil 19 that is connected in conduit 16 upper ends and the valve seat 13 that is connected in conduit 16 lower ends; And shutoff is at the static iron core 18 and the moving iron core 15 that is positioned at conduit 16 of conduit 16 upper ends; Valve seat 13 is connected with media outlet connecting tube 12 with medium inlet connecting tube 11 respectively, in valve seat 13, is provided with the valve port 131 between medium inlet and outlet.Be provided with the Sealing 14 that cooperates with valve port 131 in moving iron core 15 lower ends, a Returnning spring 17 is set between static iron core 18 and moving iron core 15; Along with the energising and the outage of electromagnetic coil 19, moving iron core 15 moves up and down along conduit 16 axle center, Sealing 14 is opened or shutoff valve port 131, thereby control media is through the break-make of valve port 131.
Above-mentioned electromagnetic coil 19 the required minimum electromagnetic force of the moving iron core of electric adhesive 15, should overcome moving iron core 15 gravity, valve port 131 difference force and Returnning spring 17 initial spring force with joint efforts.Along with environment protection type new cooling media in recent years constantly occurs; The requirement of opening the valve difference force to solenoid valve constantly increases; The electromagnetic attraction that causes existing electromagnetic coil 19 energisings to be produced can not satisfy the adhesive of moving iron core 15 and static iron core 18, thereby causes solenoid valve to open difficulty and open problem such as unreliable occurring.Open difficulty and open unreliable problem though can overcome solenoid valve through the methods such as electromagnetic force that electromagnetic coil can be improved in magnetic flux area, the number of turn that increases coil that changes core iron and the line footpath that increases the coil varnish envelope curve etc. in the existing technology, the cost of product can increase along with these improvement.
Summary of the invention
The utility model problem to be solved just provides a kind of solenoid valve, and is simple in structure, easily manufactured, do not increase cost, can under higher pressure difference condition, open smoothly and reliably.
In order to solve the problems of the technologies described above; The utility model adopts following technological scheme: a kind of solenoid valve; Comprise the valve seat that is located at the conduit lower end and be located at the moving iron core that slides in the conduit, valve seat is provided with medium inlet and media outlet, between medium inlet and media outlet, is provided with valve port in the valve seat; Moving inside, iron core lower end is provided with corresponding with valve port and the action of servo-actuated iron core is opened or the Sealing of close port; It is characterized in that: be provided with spool between said moving iron core and the Sealing, be provided with the medium channel that the medium inlet is communicated with center hole in the moving iron core in the spool, be provided with the through hole that valve port is communicated with medium channel in the Sealing; Be provided with between Sealing and the moving iron core and Sealing is pressed to spool make spool seal the holddown spring of through hole, the diameter of said through hole is less than the diameter of valve port.
Further; The lower end of said moving iron core is provided with mounting groove, and spool is inlaid in mounting groove top, and Sealing is inlaid in the mounting groove bottom; Sealing and mounting groove Spielpassung; The lower end of Sealing is stretched out mounting groove and is enclosed on the valve port upper-end surface, and Sealing upwards is pressed under the holddown spring effect on the spool, and the distance that Sealing slides up and down in mounting groove is less than the stroke of moving iron core knee-action.
Further, the gap between said Sealing and the mounting groove is 0.05～0.1mm.
Further, the lower end of said mounting groove is provided with back-up ring, and the lower end of holddown spring is against on the back-up ring, and the upper end of holddown spring is against on the Sealing.
Further, the upper end interference fit of the upper end of said spool and mounting groove.Easy for installation.
Further, the lower end of said spool is provided with the fore-set that arrives in the through hole.Be convenient to solenoid valve must not when electricity spool through hole is sealed, be convenient to solenoid valve again and get electric back valve core and separate with Sealing.
Further, the lower end surface of said fore-set is sphere or conical surface.
Further, the end opening of said medium channel is located on the sidewall of fore-set, and medium channel suitable for reading is located on the upper-end surface of spool.
Further, said spool and moving iron core are wholely set.
After adopting technique scheme; The utlity model has following advantage: on the basis of the raising cost of production such as electromagnetic force that can not improve electromagnetic coil through magnetic flux area, the number of turn that increases coil that changes core iron and the line footpath that increases the coil varnish envelope curve etc.; Guarantee solenoid valve also can be smoothly under higher pressure difference condition, reliable unlatching, be fit to be applied in the high-pressure system of environmental protection new cooling media.
Description of drawings
Below in conjunction with accompanying drawing the utility model is described further:
Fig. 1 is the structural representation of existing a kind of solenoid valve;
Fig. 2 is a kind of embodiment's of the utility model a structural representation;
Fig. 3 is an A place enlarged view among Fig. 2;
Fig. 4 is the structural representation of structure shown in Figure 3 when solenoid valve is switched on;
Fig. 5 is structure shown in Figure 3 is opened state at solenoid valve a structural representation.
Embodiment
Shown in Fig. 2 and 3; A kind of solenoid valve; Comprise the valve seat 8 that is located at conduit 9 lower ends and be located at the moving iron core 2 that slides in the conduit; Valve seat is provided with medium inlet 81 and media outlet 82, between medium inlet and media outlet, is provided with valve port 80 in the valve seat, and moving inside, iron core lower end is provided with corresponding with valve port and the action of servo-actuated iron core is opened or the Sealing 3 of close port; Be provided with spool 4 between said moving iron core and the Sealing; Be provided with the medium channel 41 that the medium inlet is communicated with center hole 21 in the moving iron core in the spool, be provided with the through hole 31 that valve port is communicated with medium channel in the Sealing, be provided with between Sealing and the moving iron core and Sealing is pressed to spool make spool seal the holddown spring 5 of through hole.Require emphasis, the diameter of said through hole is less than the diameter of valve port.
In the present embodiment; The lower end of said moving iron core is provided with mounting groove 22, and spool is inlaid in mounting groove top, and Sealing is inlaid in the mounting groove bottom; Sealing and mounting groove Spielpassung; The lower end of Sealing is stretched out mounting groove and is enclosed on the valve port upper-end surface, and Sealing upwards is pressed under the holddown spring effect on the spool, and the distance that Sealing slides up and down in mounting groove is less than the stroke of moving iron core knee-action.Gap between preferred seal and the mounting groove is 0.05～0.1mm.
In addition, be provided with back-up ring 6 in the lower end of said mounting groove, the lower end of holddown spring is against on the back-up ring, and the upper end of holddown spring is against on the Sealing.The upper end interference fit of the upper end of said spool and mounting groove.Be provided with the fore-set 42 that arrives in the through hole in the lower end of spool, the lower end surface of fore-set is preferably sphere or conical surface.The end opening of said medium channel is located on the sidewall of fore-set, and medium channel suitable for reading is located on the upper-end surface of spool.And spool also can be wholely set with moving iron core.
The utility model solenoid valve is to adopt the secondary opening mode to realize the switching of solenoid valve, and under the identical situation of valve port pressure reduction, the valve port size determines the valve port difference force, thereby influences electromagnetic valve coil, core iron specification.Under original state; Be solenoid valve not; The pressure of Sealing upper-end surface is identical with the medium inlet; And under the effect of the Returnning spring between holddown spring and moving iron core and the static iron core, spool is against on the Sealing and by fore-set the through hole in the Sealing is sealed, and the pressure difference that exists between Sealing upper-end surface and the valve port promptly is the pressure difference between medium inlet and the media outlet.As shown in Figure 4; The electromagnetic valve coil energising moves up iron core, and under the effect of pressure medium difference, Sealing remains on initial position; And spool servo-actuated iron core moves up through hole is opened; Because the diameter of through hole is less than the diameter of valve port, the moving required difference force that overcomes of iron core is a very little difference force between the relative valve port of through hole, and the required electromagnetic force of the origination action of therefore moving iron core is less; Start more smoothly, just can very successfully realize the origination action of moving iron core like this than the coil of small dimension and core iron.As shown in Figure 5, moving iron core continues to move up and accomplishes the adhesive campaign of moving iron core and static iron core, because the effect of holddown spring makes Sealing follow moving iron core and moves up.Meanwhile; Solenoid valve is through the through hole pressure release in the Sealing, and the difference force at valve port place reduces, and the moving iron core therefore time the and the distance of static iron core reduce again; The suction-combining force between the two significantly improves; Even therefore the specification of coil, moving iron core is less, the electromagnetic force that electromagnetic coil produces also can overcome valve port place difference force, spring force, moving iron core gravity, and Sealing is pulled away from valve port.On the other hand, moving iron core origination action has had certain initial velocity at the very start, and the inertia of moving iron core also helps Sealing to be pulled away from valve port.
Except that above-mentioned preferred embodiment; The utility model also has other mode of execution; Those skilled in the art can make various changes and distortion according to the utility model, only otherwise break away from the spirit of the utility model, all should belong to the defined scope of the utility model accompanying claims.
Claims (9)
1. solenoid valve; Comprise the valve seat (8) that is located at conduit (9) lower end and be located at the moving iron core (2) that slides in the conduit; Valve seat is provided with medium inlet (81) and media outlet (82); Between medium inlet and media outlet, be provided with valve port (80) in the valve seat, moving inside, iron core lower end is provided with corresponding with valve port and the action of servo-actuated iron core is opened or the Sealing (3) of close port, it is characterized in that: be provided with spool (4) between said moving iron core and the Sealing; Be provided with the medium channel (41) that the medium inlet is communicated with center hole (21) in the moving iron core in the spool; Be provided with the through hole (31) that valve port is communicated with medium channel in the Sealing, be provided with between Sealing and the moving iron core and Sealing is pressed to spool make spool seal the holddown spring of through hole (5), the diameter of said through hole is less than the diameter of valve port.
2. a kind of solenoid valve according to claim 1; It is characterized in that: the lower end of said moving iron core is provided with mounting groove (22), and spool is inlaid in mounting groove top, and Sealing is inlaid in the mounting groove bottom; Sealing and mounting groove Spielpassung; The lower end of Sealing is stretched out mounting groove and is enclosed on the valve port upper-end surface, and Sealing upwards is pressed under the holddown spring effect on the spool, and the distance that Sealing slides up and down in mounting groove is less than the stroke of moving iron core knee-action.
3. a kind of solenoid valve according to claim 2 is characterized in that: the gap between said Sealing and the mounting groove is 0.05～0.1mm.
4. a kind of solenoid valve according to claim 2 is characterized in that: the lower end of said mounting groove is provided with back-up ring (6), and the lower end of holddown spring is against on the back-up ring, and the upper end of holddown spring is against on the Sealing.
5. a kind of solenoid valve according to claim 2 is characterized in that: the upper end interference fit of the upper end of said spool and mounting groove.
6. according to claim 1,2 or 5 described a kind of solenoid valves, it is characterized in that: the lower end of said spool is provided with the fore-set (42) that arrives in the through hole.
7. a kind of solenoid valve according to claim 6 is characterized in that: the lower end surface of said fore-set is sphere or conical surface.
8. a kind of solenoid valve according to claim 6 is characterized in that: the end opening of said medium channel is located on the sidewall of fore-set, and medium channel suitable for reading is located on the upper-end surface of spool.
9. a kind of solenoid valve according to claim 2 is characterized in that: said spool and moving iron core are wholely set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204947765U CN202451936U (en) | 2011-12-02 | 2011-12-02 | Solenoid valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204947765U CN202451936U (en) | 2011-12-02 | 2011-12-02 | Solenoid valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202451936U true CN202451936U (en) | 2012-09-26 |
Family
ID=46867801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204947765U Expired - Fee Related CN202451936U (en) | 2011-12-02 | 2011-12-02 | Solenoid valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202451936U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104121407A (en) * | 2014-08-10 | 2014-10-29 | 安徽省宁国新鼎汽车零部件有限公司 | Switching solenoid valve |
| CN104141800A (en) * | 2013-05-09 | 2014-11-12 | 宁波亨博电磁技术有限公司 | Miniature electromagnetic valve provided with movable iron core with overhead exhaust hole |
| CN106763995A (en) * | 2017-03-21 | 2017-05-31 | 上海巨良电磁阀制造有限公司 | Small-bore big flow mute electromagnetic valve |
| CN108223813A (en) * | 2016-12-09 | 2018-06-29 | 艾默生环境优化技术(苏州)有限公司 | Electromagnetic valve |
| CN110131426A (en) * | 2018-02-09 | 2019-08-16 | 厦门松霖科技股份有限公司 | Push type valve core and bathtub tap that can reset automatically |
| JP2019152303A (en) * | 2018-03-06 | 2019-09-12 | 株式会社鷺宮製作所 | Motor valve and refrigeration cycle system |
| CN110906042A (en) * | 2018-09-17 | 2020-03-24 | 浙江三花制冷集团有限公司 | Electromagnetic valve |
| JP2021121761A (en) * | 2017-03-10 | 2021-08-26 | 株式会社鷺宮製作所 | Motor operated valve and refrigeration cycle system |
-
2011
- 2011-12-02 CN CN2011204947765U patent/CN202451936U/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104141800A (en) * | 2013-05-09 | 2014-11-12 | 宁波亨博电磁技术有限公司 | Miniature electromagnetic valve provided with movable iron core with overhead exhaust hole |
| CN104121407A (en) * | 2014-08-10 | 2014-10-29 | 安徽省宁国新鼎汽车零部件有限公司 | Switching solenoid valve |
| CN108223813A (en) * | 2016-12-09 | 2018-06-29 | 艾默生环境优化技术(苏州)有限公司 | Electromagnetic valve |
| JP7111864B2 (en) | 2017-03-10 | 2022-08-02 | 株式会社鷺宮製作所 | Electric valve and refrigeration cycle system |
| JP2021121761A (en) * | 2017-03-10 | 2021-08-26 | 株式会社鷺宮製作所 | Motor operated valve and refrigeration cycle system |
| CN106763995A (en) * | 2017-03-21 | 2017-05-31 | 上海巨良电磁阀制造有限公司 | Small-bore big flow mute electromagnetic valve |
| US11022234B2 (en) | 2018-02-09 | 2021-06-01 | Xiamen Solex High-Tech Industries Co., Ltd. | Automatically resettable press-type switching valve and bathtub faucet |
| CN110131426B (en) * | 2018-02-09 | 2020-09-18 | 厦门松霖科技股份有限公司 | Push type valve core and bathtub tap that can reset automatically |
| CN110131426A (en) * | 2018-02-09 | 2019-08-16 | 厦门松霖科技股份有限公司 | Push type valve core and bathtub tap that can reset automatically |
| CN110230721A (en) * | 2018-03-06 | 2019-09-13 | 株式会社鹭宫制作所 | Motor-driven valve and refrigerating circulation system |
| CN110230721B (en) * | 2018-03-06 | 2021-08-06 | 株式会社鹭宫制作所 | Electric valve and refrigeration cycle system |
| JP2019152303A (en) * | 2018-03-06 | 2019-09-12 | 株式会社鷺宮製作所 | Motor valve and refrigeration cycle system |
| CN110906042A (en) * | 2018-09-17 | 2020-03-24 | 浙江三花制冷集团有限公司 | Electromagnetic valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120926 Termination date: 20191202 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |