CN201934756U - Half self-locking electromagnetic valve - Google Patents
Half self-locking electromagnetic valve Download PDFInfo
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- CN201934756U CN201934756U CN2010206847574U CN201020684757U CN201934756U CN 201934756 U CN201934756 U CN 201934756U CN 2010206847574 U CN2010206847574 U CN 2010206847574U CN 201020684757 U CN201020684757 U CN 201020684757U CN 201934756 U CN201934756 U CN 201934756U
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- solenoid valve
- iron core
- movable core
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Abstract
The utility model relates to a half self-locking electromagnetic valve, which comprises an electromagnetic driving part. The electromagnetic driving part comprises a shell, a coil framework accommodated in the shell, a coil wound on the coil framework, a fixed iron core positioned above a coil frame, a movable iron core moving relatively to the fixed iron core, a center iron rod driven by the movable iron core to move vertically, a spring positioned between the fixed iron core and the movable iron core and at the periphery of the center iron rod, and an annular iron core positioned below the coil frame and embedded with a permanent magnet. A non-magnetic component is also arranged between the fixed iron core and the movable iron core. The spring is assisted to overcome the driving force of the permanent magnet through the non-magnetic component arranged between the fixed iron core and the movable iron core; and the structure and electric control are simple, and the driving force is intensified.
Description
Technical field
The utility model relates to a kind of solenoid valve, relates in particular to a kind of half self-locking solenoid valve.
Background technique
The solenoid valve that the control fluid flows extensively adopts the electromagnetic coil drive portion.The electromagnetic coil drive portion is by the adsorbed secured core of the coil, the movable core on the coil rack central shaft in the through hole, the movable core that form, overcoming the attraction force of secured core and movable core and provide the spring assembly of elastic-restoring force to form in coiling on the coil rack.Above-mentioned electromagnetic coil drive portion formation is exposed in the Japan Patent spy and opens 2001-218440 number.When above-mentioned electromagnetic coil drive portion has electric current to flow through, the attraction force that evokes on the magnetic loop can drive movable core, makes the action of solenoid valve open and close.
Yet the demand of high pressure resistant solenoid valve is more and more in recent years.To achieve these goals, electromagnetic actuation force certainly will will be strengthened, and therefore causes operation voltage, sustaining voltage, release voltage also to increase.
For fear of above-mentioned phenomenon, existing known solution is an intensifier coil power, promptly strengthens winding turns, simultaneously the thickness of spread loop skeleton torso portion.See also Fig. 1 to Fig. 2, it has disclosed the coil drive portion 200 of the conventional solenoid valve that adopts above-mentioned solution.This coil drive portion 200 comprises coil trim, be positioned at the coil rack 2 ' of coil trim, be wound in coil 3 ' on the coil rack 2 ', be positioned at coil 3 ' top secured core 4 ', be subjected to coil 3 ' magnetic drive and can be with respect to the movable core 6 ' of secured core 4 ' motion, drive the spring 5 ' that movable core 6 ' resets and be positioned at the bottom and be formed with the annular core 7 ' in the space 70 ' of accommodating movable core 6 '.Electromagnetic drive part 200 has that pass secured core 4 ' and adhere to movable core 6 ' can be with the iron staff 8 ' of movable core 6 ' associated movement, and spring 5 ' two ends are supported respectively and are located at the both sides of secured core 4 ' bottom and center iron staff 8 ' and are positioned between the week of center iron staff 8 ' periphery and movable core 6 '.
See also Fig. 1, when solenoid valve energising ON, the solenoid valve stream is closed condition.The coil 3 ' of electromagnetic drive part 200 produces magnetic, thereby movable core 6 ' drives center iron staff 8 ' upwards with secured core 4 ' adhesive, and then realizes the stream closure of solenoid valve.This moment, spring 5 ' was in compressed state, and had certain elastic-restoring force.See also Fig. 2, this moment, solenoid valve was in outage OFF state, and the solenoid valve stream is opening state.Electromagnetic drive part 200 magnetic disappear, therefore the restoring force of spring 5 ' driving movable core 6 ' drive center iron staff 8 ' moves downward, thereby away from secured core 4 ', and finally enter in the space 70 ' of annular core 7 ', realize that therefore the stream of solenoid valve 200 is opened.
But when electromagnetic drive part 200 sizes or consumed power were restricted, this solution was inapplicable.Simultaneously, use to exceed the electric current of coil rating value, though realized the enhancing the suction-combining force, also cause consumed power to become big simultaneously, temperature-rise coefficient also can uprise, and therefore, is not suitable for long-time use, also is inconvenient to use.
Therefore, for do not add power consumption, not increase temperature-rise coefficient in, can enhance attraction, also have a solution to be to use the magnetic padlock formula electromagnetic drive part of permanet magnet.See also Fig. 3 and Fig. 4, it has disclosed the closed condition and the opening state of the electromagnetic drive part 300 of the self-locking solenoid valve that adopts permanet magnet.Compare with conventional solenoid valve, this self-locking solenoid valve has been embedded in permanet magnet 71 ' at the annular core 7 ' of electromagnetic drive part 200 bottoms that are positioned at conventional solenoid valve '.Because built-in permanet magnet 71 ' ', it is big that driving force becomes.But after the outage, in the time of the movable core 6 ' that adsorbs mutually being separated with secured core 4 ', the elastic-restoring force that only depends on spring 5 ' is to be not enough to overcome permanent magnet 71 ' ' magnetive attraction.Must be by electrical control, and owing to permanent magnet 71 ' ' the branch of both positive and negative polarity, the both positive and negative polarity position of alternate coils 3 ' correspondingly.
Therefore after movable core adsorbs with secured core in this solution, apply and make its reverse electric power just counteragent can take place.Movable core can not be realized automatically reseting, and must give electrical control.
Therefore, need a kind of solenoid valve, its actuation techniques can intensifier coil power, but bring influence can not for power and temperature-rise coefficient, need not extra electrical control again.
The model utility content
The purpose of this utility model is to provide a kind of half self-locking solenoid valve, the easy and driving force enhancing of its electrical control.
For achieving the above object, the utility model is that it comprises electromagnetic drive part about a kind of half self-locking solenoid valve.Thereby this electromagnetic drive part comprises case, be contained in magazine in the case, be wound in coil on the magazine, at the secured core above the magazine, with respect to the movable core of secured core motion, can be driven upper and lower mobile center iron staff by movable core, between secured core and the movable core and be positioned at the spring of center iron staff periphery and be positioned at the annular core that embedding below the magazine has permanet magnet.Also has non-magnetic part between secured core and the movable core.
As further improvement of the utility model, described secured core has the adhesive space, is used for accommodating movable core, and wherein non-magnetic part is contained in this adhesive space.
As further improvement of the utility model, described adhesive space is a wedge shape, and wherein said non-magnetic part is wedge shape and accommodates what adhesive top of space.
As further improvement of the utility model, the formation cavity that caves inward on the described movable core, wherein the center iron staff passes secured core and is contained in the cavity of movable core.
As further improvement of the utility model, against the adhesive top of space and the iron staff lower end, center of secured core, above-mentioned non-magnetic part is sheathed on the spring outside to described both ends of the spring respectively.
As further improvement of the utility model, described non-magnetic part is sheathed on spring upper end periphery.
As further improvement of the utility model, described non-magnetic part is the resin material.
The beneficial effects of the utility model are: by being positioned over the non-magnetic part between secured core and the movable core, assist spring to overcome the driving force of permanet magnet, structure and electrical control are simple, and driving force strengthens.
Description of drawings
Fig. 1 is the electromagnetism stream closed state schematic representation of the electromagnetic coil drive portion of conventional solenoid valve in the prior art.
Fig. 2 is the electromagnetism stream opening state schematic representation of the electromagnetic coil drive portion of conventional solenoid valve shown in Figure 1.
Fig. 3 is the electromagnetism stream closed state schematic representation of the electromagnetic coil drive portion of self-locking solenoid valve in the prior art.
Fig. 4 is the electromagnetism stream opening state schematic representation of the electromagnetic coil drive portion of self-locking solenoid valve shown in Figure 3.
Fig. 5 is the partial sectional view of the utility model half self-locking solenoid valve.
Fig. 6 is the electromagnetism stream closed state schematic representation of the coil drive portion of the utility model half self-locking solenoid valve.
Fig. 7 is the electromagnetism stream opening state schematic representation of the coil drive portion of half self-locking solenoid valve shown in Figure 6.
Embodiment
See also Fig. 5 and Fig. 6, the utility model half self-locking solenoid valve 100 comprises the electromagnetic drive part 101 that has base and assemble with base.Electromagnetic drive part 101 comprises outermost case 1, be contained in the coil rack 2 in the case 1, be wound in the coil 3 outside the coil rack 2, be positioned at the secured core 4 that coil rack 2 tops and part enter coil rack 2, be positioned at the annular core 7 of coil rack 2 belows, and the movable core 6 that in coil rack 2, also can between secured core 4 and annular core 7, move, passing secured core 4 and part is contained in the center iron staff 8 in the movable core 6 and is positioned at secured core 4, spring 5 between movable core 6 and the center iron staff 8 and non-magnetic part 9.
Secured core 4 has main part 41 and autonomous body 41 middle parts and extends down into adhesive portion 42 in the magazine 2.Adhesive portion 42 lower ends cave inward and form wedge shape adhesive face 422 and adhesive space 421.Groove 40 runs through secured core 4 and is communicated with adhesive space 421, and above-mentioned center iron staff 8 passes this groove 40.
Therefore above-mentioned spring 5 one ends are against adhesive face 422 tops of secured core 4, and the other end is resisted against on the step 801 of center iron staff 8, are contained in the cavity 60 of movable core 6 and are positioned at center iron staff 8 peripheries.
Above-mentioned non-magnetic part 9 is a wedge shape, and is contained in the periphery that the top in adhesive space 421 of secured core 4 and adhesive face 422 are fitted and be sheathed on spring 5.In the utility model preferred implementation, this non-magnetic part 9 is the resin material, yet it is not limited in the resin material.
The annular core 7 that is positioned at magazine 2 bottoms is embedded in permanet magnet 71.Permanet magnet 71 offers the host cavity 70 that can partly accommodate movable core 6.
See also Fig. 6, be in closed state after the energising of the utility model half self-locking solenoid valve 100, the coil 3 of electromagnetic drive part 101 produces driving forces, and permanet magnet 71 also provides the part driving force, so movable core 6 is in adsorbed state with secured core 4.At this moment, spring 5 is subjected to the extruding of movable core 6 and secured core 4 and is compressive state, and the last ora terminalis of movable core 6 is against non-magnetic part 9.Center iron staff 8 is driven by movable core 6 and moves upward.Coil 3 after the energising and permanet magnet 71 provide jointly movable core 6 driving force and with secured core 4 between confining force, still the driving force that is produced by permanet magnet 71 is less than the elastic-restoring force of spring 5 after by compression.Therefore, after outage, half self-locking solenoid valve 100 is in opening state, sees also Fig. 7, and the electromagnetic actuation force that the coil 3 of electromagnetic drive part 101 produces disappears, and the driving force that only has permanet magnet 71 to produce exists.But because this driving force is less than the elastic-restoring force of spring 5, and because the insulating effect of non-magnetic part 9, further weaken the driving force of permanet magnet 71, so movable core 6 can rely on the elastic-restoring force of spring 5 to reset, and the center of drive iron staff 8 moves downward the closure that realizes stream.
Therefore, the utility model half self-locking solenoid valve 100 do not add power consumption, not increase temperature-rise coefficient in, by permanet magnet 71 enhance attraction, increased driving force to movable core 6, do not need simultaneously special electrical control again, only overcome the driving force of permanet magnet 71, oppositely move forward into horizontal reset thereby drive movable core 6 by the elastic-restoring force of spring 5.
Special needs to be pointed out is, in the utility model embodiment only with this half self-locking solenoid valve 100 as example, half self-locking solenoid valve of other types all is suitable for the principle that the utility model discloses in actual applications.For the person of ordinary skill of the art, that is done under instruction of the present utility model changes at equivalence of the present utility model, must be included in the scope that the utility model claim advocated.
Claims (7)
1. one and half self-locking solenoid valves, it comprises: electromagnetic drive part, thereby this electromagnetic drive part comprises case, is contained in coil rack in the case, is wound in the coil of coil rack, at the secured core above the magazine, with respect to the movable core of secured core motion, can be driven upper and lower mobile center iron staff by movable core, between secured core and the movable core and be positioned at the spring of center iron staff periphery and be positioned at the annular core that embedding below the magazine has permanet magnet; It is characterized in that: also have the non-magnetic part between secured core and movable core.
2. half self-locking solenoid valve as claimed in claim 1 is characterized in that described secured core has the adhesive space, is used for accommodating movable core, and wherein non-magnetic part is contained in this adhesive space.
3. half self-locking solenoid valve as claimed in claim 2 is characterized in that described adhesive space is a wedge shape, and wherein said non-magnetic part is wedge shape and accommodates what adhesive top of space.
4. half self-locking solenoid valve as claimed in claim 2 is characterized in that, the formation cavity that caves inward on the described movable core, and wherein the center iron staff passes secured core and is contained in the cavity of movable core.
5. half self-locking solenoid valve as claimed in claim 4 is characterized in that, against the adhesive top of space and the iron staff lower end, center of secured core, above-mentioned non-magnetic part is sheathed on the spring outside to described both ends of the spring respectively.
6. half self-locking solenoid valve as claimed in claim 1 is characterized in that, described non-magnetic part is sheathed on spring upper end periphery.
7. half self-locking solenoid valve as claimed in claim 1 is characterized in that described non-magnetic part is the resin material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206847574U CN201934756U (en) | 2010-12-28 | 2010-12-28 | Half self-locking electromagnetic valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206847574U CN201934756U (en) | 2010-12-28 | 2010-12-28 | Half self-locking electromagnetic valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201934756U true CN201934756U (en) | 2011-08-17 |
Family
ID=44446275
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206847574U Expired - Fee Related CN201934756U (en) | 2010-12-28 | 2010-12-28 | Half self-locking electromagnetic valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201934756U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102563174A (en) * | 2010-12-28 | 2012-07-11 | 高砂电气(苏州)有限公司 | Semi-self-locking electromagnetic valve |
| CN112483716A (en) * | 2020-12-14 | 2021-03-12 | 欧好光电控制技术（上海）股份有限公司 | Driving device of electromagnetic valve |
-
2010
- 2010-12-28 CN CN2010206847574U patent/CN201934756U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102563174A (en) * | 2010-12-28 | 2012-07-11 | 高砂电气(苏州)有限公司 | Semi-self-locking electromagnetic valve |
| CN112483716A (en) * | 2020-12-14 | 2021-03-12 | 欧好光电控制技术（上海）股份有限公司 | Driving device of electromagnetic valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110817 Termination date: 20131228 |