CN201475474U - High-voltage solenoid valve - Google Patents
High-voltage solenoid valve Download PDFInfo
- Publication number
- CN201475474U CN201475474U CN2009201753652U CN200920175365U CN201475474U CN 201475474 U CN201475474 U CN 201475474U CN 2009201753652 U CN2009201753652 U CN 2009201753652U CN 200920175365 U CN200920175365 U CN 200920175365U CN 201475474 U CN201475474 U CN 201475474U
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- China
- Prior art keywords
- plunger tube
- magnet case
- solenoid valve
- iron core
- valve body
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Abstract
The utility model relates to a high-voltage solenoid valve, which comprises a valve body and a high-voltage electromagnetic head, wherein the high-voltage electromagnetic head is mounted on the valve body and comprises a coil and a plunger tube, the plunger tube is positioned in the coil, a magnetizer is sleeved on the outer side at the lower part of the plunger tube, the plunger tube positioned at the lower part in the magnetizer or the whole plunger tube adopts a thin-walled structure, and the wall thickness of the thin-walled structure is smaller than that of the main part of the plunger tube positioned outside the magnetizer; a movable iron core and a static iron core are arranged in the plunger tube, the static iron core is positioned above the movable iron core and is fixedly connected with the plunger tube, and the movable iron core is in clearance fit with the plunger tube and is connected with a valve rod of the valve body. The high-voltage solenoid valve reduces the magnetic reluctance of a magnetic circuit, thereby enhancing the suction force between the movable iron core and the static iron core and the capability of the electromagnetic head to adapt to high-pressure working medium.
Description
Technical field
The utility model relates to a kind of solenoid valve, particularly a kind of high-pressure solenoid valve that is applicable to high-pressure medium.
Background technique
As shown in Figure 1, existing general solenoid valve mainly comprises fixed core 1, moving iron core 2, plunger tube 3, goes up concentrating flux sleeve 4, following concentrating flux sleeve 5, coil 6, magnetic conduction shell 7, terminal box 8, magnetic conductive disk 9 and adpting flange 10 with Electrical heads.Plunger tube is the thin walled tube of even uniform thickness, the endoporus on plunger tube top and isodiametric fixed core match, and to be incorporated in upper end welding fixing, be provided with moving unshakable in one's determination in the endoporus of plunger tube bottom, moving iron core can move up and down in plunger tube, the top of plunger tube is set with, following concentrating flux sleeve, on, following concentrating flux sleeve outer periphery is equipped with coil, on, the outside of following concentrating flux sleeve and coil is enclosed with the magnetic conduction shell, the magnetic conduction shell is provided with terminal box, be used to connect power supply, the upper end of fixed core and last concentrating flux sleeve contacts with the magnetic conduction shell, and the lower inside of magnetic conduction shell is equipped with magnetic conductive disk, the upper surface of magnetic conductive disk contacts with the lower surface of following concentrating flux sleeve, and the bottom of plunger tube is fixedly connected with adpting flange.
The working principle of above-mentioned Electrical heads is: during no electric circuit, there is the air gap Δ between the dynamic and static iron core, after connecting power supply, coil produces magnetic field, the magnetic line of force is delivered to magnetic conductive disk by fixed core through the magnetic conduction shell, relend assistant director of a film or play's magnetosheath and pass plunger tube and be delivered to movingly unshakable in one's determination, constituted the complete magnetic line of force and transmit the loop thereby arrive fixed core via air gap.Moving iron core moves and final adhesive to fixed core under magnetic force, and air gap disappears; When outage, magnetic force disappears, and moving unshakable in one's determination away from fixed core under spring force, gravity, working medium pressure or other external force effects, air gap produces again.
When valve body is a direct-acting type, move the upper and lower mobile motion that has driven the spool of connected valve body unshakable in one's determination, thereby finish the opening and closing action of solenoid valve; When valve body is a leading type, moving unshakable in one's determination by the open and close between the poppet port of sealing gasket on its lower end surface and valve body, drive and finished the opening and closing action of solenoid valve indirectly, the different Placements of moving iron core and valve rod have also been determined thus, this Placement comprises direct connection and indirect connection, its objective is by moving action unshakable in one's determination, drive the valve rod action, and then realize the opening and closing of valve.
In order to adapt to high-pressure working medium, need to adapt to the Electrical heads of high pressure, this Electrical heads should provide big the suction-combining force and have enough intensity, therefore, in the structural design of high-voltage electromagnetic head, often needs to consider the factor of following two aspects:
(1) high-voltage electromagnetic head need have big the suction-combining force, and magnetic line of force transmission loop magnetic resistance is more little, and the suction-combining force of dynamic and static iron core is big more, in order to make magnetic line of force transmission loop unblocked, should reduce the wall thickness of plunger tube as far as possible;
(2) in Electrical heads when work,, the working medium of solenoid valve can lead to the plunger tube inner chamber usually, when the overpressure of working medium; the plunger tube pressurized is broken; therefore, should improve the structural strength of plunger tube, way commonly used is the wall thickness that increases plunger tube as far as possible.
On the one hand, in order to obtain big the suction-combining force, reduce the plunger tube wall thickness; On the other hand, in order to adapt to the high pressure working medium, increase the plunger tube wall thickness, obviously be a pair of contradiction, is difficult to take into account.
The model utility content
In order to solve above-mentioned contradiction, the utility model provides a kind of high-pressure solenoid valve, and the Electrical heads structure of this solenoid valve by optimizing can provide big the suction-combining force, adapts to high medium working pressure.
The technological scheme that the utility model adopted is:
A kind of high-pressure solenoid valve, comprise valve body and high-voltage electromagnetic head, described high-voltage electromagnetic head is installed on the described valve body, described high-voltage electromagnetic head comprises coil and plunger tube, described plunger tube is positioned at described coil, the outside, bottom that it is characterized in that described plunger tube is with magnet case, the bottom or the whole plunger tube that are positioned at described magnet case adopt thin walled structures, the wall thickness of described thin walled structures is less than the wall thickness that is positioned at the outer plunger tube main body of described magnet case, be provided with moving iron core and fixed core in the described plunger tube, described fixed core is positioned at described moving top unshakable in one's determination, and it is fixedly connected with described plunger tube, described moving iron core and described plunger tube Spielpassung, and connect the valve rod of described valve body.
Usually can be provided with magnetic conductive disk below the described coil, described magnet case upper end contacts with described magnetic conductive disk or leaves the gap.
Described thin walled structures can match with the endoporus of the magnet case that is enclosed within its outside, the endoporus top of described magnet case and described plunger tube main body scyewed joint, and the wall thickness of described thin walled structures is less than or equal to 2mm.
The structure of outside turnover can be adopted in the bottom of described thin walled structures, is welded to connect and seals between its end and the described adpting flange.
The upper end of described magnet case can be welded to connect with described plunger tube.
Described fixed core can adopt the up-small and down-big gauge structure that do not wait usually, its top connects with the inner hole thread of described plunger tube, match with the endoporus of described plunger tube in the bottom, the mode that described fixed core is fixedlyed connected with described plunger tube is that the top and the described fixed core of described plunger tube is welded to connect and seals.
The structure of outside turnover can be adopted in the bottom of described thin walled structures, is welded to connect and seals between its end and the described adpting flange.
The upper and lower of described coil can be respectively equipped with concentrating flux sleeve and following concentrating flux sleeve, the internal diameter of described upper and lower concentrating flux sleeve all contacts with the external diameter of described plunger tube, the described upper surface of going up concentrating flux sleeve touches with the magnetic conduction shell joint that is positioned at described coil outside, and the described lower surface of concentrating flux sleeve down contacts with the upper surface of described magnetic conductive disk.
Described magnet case bottom can be fixedly connected with adpting flange or be provided with worm structure, and the Placement of described high-voltage electromagnetic head and described valve body can be for being connected with described valve body flange by described adpting flange or being threaded with described valve body by described worm structure.
Described magnet case bottom can connect with the inner hole thread of described adpting flange for the external diameter of described magnet case bottom with the fixedly connected mode of described adpting flange, the worm structure that described magnet case bottom is provided with can be outside thread or the internal thread that is set directly on the described magnet case, or the link that is provided with screw thread of described magnet case connection.
The utility model has been set up magnet case and thin walled structures has been arranged in the bottom of plunger tube on the magnetic loop of high-voltage electromagnetic head, transmit magnetic flux by thin walled structures and magnet case, reduced magnetic resistance thus, and guaranteed the bulk strength of plunger tube and magnet case, thereby improved the suction-combining force between dynamic and static iron core, improved the adaptive capacity of Electrical heads to the transferring high voltage medium, opening and closing effectively under high-pressure medium have been guaranteed, not only be adapted to generic media thus, but also be adapted to the occasion of high-pressure medium especially.
Description of drawings
Fig. 1 is the Electrical heads structural representation under the prior art;
Fig. 2 is the structural representation of the high-voltage electromagnetic head that the utility model adopted.
Embodiment
As shown in Figure 2, the utility model has improved a kind of high-voltage electromagnetic head, comprise valve body and high-voltage electromagnetic head, described high-voltage electromagnetic head is installed on the described valve body, described high-voltage electromagnetic head comprises coil 6 and plunger tube 3, described plunger tube is positioned at described coil, the outside, described plunger tube bottom is with magnet case 11, thick thin down on the described plunger tube, be divided into thin walled structures 3a and plunger tube main body 3b two-part substantially according to wall thickness variation, thin walled structures 3a all is positioned at described magnet case in this example, specifically be positioned at the bottom of described magnet case, and match with the endoporus of magnet case that is enclosed within its outside, in order to guarantee the join strength of magnet case and plunger tube, adopt scyewed joint between the bottom of the top endoporus of described magnet case and described plunger tube main body 3b; In order to improve the join strength of magnet case and plunger tube, adopt welding to connect between the upper end of described magnet case and the described plunger tube.
Be provided with magnetic conductive disk 9 below the described coil, described magnet case upper end contacts with described magnetic conductive disk or leaves the gap, the upper and lower of described coil is respectively equipped with concentrating flux sleeve 4 and following concentrating flux sleeve 5, the internal diameter of described upper and lower concentrating flux sleeve contacts with described plunger tube external diameter, the described upper surface of going up concentrating flux sleeve contacts with the magnetic conduction shell 7 of described coil outside, and the described lower surface of concentrating flux sleeve down contacts with the upper surface of described magnetic conductive disk.Terminal box 8 is installed on the side of magnetic conduction shell, and terminal box is used to connect power supply.
Described magnet case bottom is fixedly connected with adpting flange 10, and the bottom of magnet case described in this example and the fixedly connected mode of adpting flange 10 are that the external diameter of magnet case 11 bottoms connects with the inner hole thread of adpting flange 10.
Described high-voltage electromagnetic head is threaded on the described valve body by adpting flange 10, described valve body can be direct-acting type or leading type, when being direct-acting type, described moving iron core is fixedlyed connected with the spool of described valve body, when being leading type, described plunger tube and described valve body have constituted the first guide cavity of described high-voltage electromagnetic head, be provided with poppet port in the described first guide cavity, described moving iron core is over against described poppet port, and described moving iron core acts on the described poppet port by the sealing gasket that is arranged on its lower end surface.
Be provided with fixed core 1 in the described plunger tube, this fixed core adopts the up-small and down-big gauge structure that do not wait, and match with the endoporus of plunger tube in its underpart, in order to the positional accuracy of assurance fixed core in plunger tube; Its top connects with the inner hole thread of plunger tube, in order to obtain certain join strength, and, can accurately and securely be positioned at sealing in the plunger tube and between them in order to ensure fixed core under high pressure, the top of plunger tube connects with described fixed core welding and seals.Also be provided with moving iron core 2 in the described plunger tube, moving iron core can move up and down in plunger tube.
When high-voltage electromagnetic head access failure power supply, there is an air gap Δ (referring to Fig. 2) between the dynamic and static iron core.The thin walled structures 3a of fixed core 1, magnetic conduction shell 7, magnetic conductive disk 9, magnet case 11, plunger tube 3, moving iron core 2 and air gap Δ have constituted a complete magnetic loop jointly.When high-voltage electromagnetic head is connected power supply, produce magnetic field in the coil, the magnetic line of force makes between the dynamic and static iron core and produces magnetic force through above-mentioned magnetic loop transmission, and the fixed core adhesive is moving unshakable in one's determination, and iron core is moved up, and the working gas gap between the dynamic and static iron core disappears.When outage, the magnetic force between the dynamic and static iron core disappears, and moving iron core moves away from fixed core downwards under spring force, gravity, working medium pressure or other external force effects, and the air gap Δ just produces again.
When valve body is a direct-acting type, move the upper and lower mobile motion that has driven the spool of connected valve body unshakable in one's determination, thereby finish the opening and closing action of solenoid valve; When valve body is a leading type, moving unshakable in one's determination by the open and close between the poppet port of sealing gasket on its lower end surface and valve body, finished the opening and closing action of solenoid valve indirectly, the different Placements of moving iron core and valve rod have also been determined thus, this Placement comprises direct connection and indirect connection, its objective is by moving action unshakable in one's determination, drive the valve rod action, and then realize the opening and closing of valve.
Owing to adopted and do not waited wall thickness design, the wall thickness of plunger tube main body 3b relatively now the plunger tube wall thickness in the technology obviously increase, its intensity significantly improves; thin walled structures 3a is also because of being improved intensity with cooperating of magnet case endoporus; guaranteed that plunger tube did not lose efficacy because of high-pressure medium effect distortion, therefore can be high pressure resistant.
The part that plunger tube constitutes magnetic loop mainly is thin walled structures 3a, good magnet case is enclosed in the outside and cooperation with it of thin walled structures because intensity is arranged; the wall thickness of thin walled structures can be very thin; therefore can reduce the magnetic resistance of magnetic loop; the wall thickness of thin walled structures described in this example preferably is less than or equal to 2mm; make the needs that magnetic resistance can be reduced to is enough to satisfy the magnetic loop magnetic conduction, thereby can make Electrical heads produce big the suction-combining force.
Feed the situation of plunger tube inner chamber for working medium, in order to prevent that working medium from leaking between plunger tube, magnet case and adpting flange, outwards turnover structure is adopted in the bottom of the thin walled structures of described plunger tube, and, welding connects and seals between its end and the adpting flange, has strengthened the join strength between plunger tube and the adpting flange simultaneously.
Adopt after the said structure, the structure of its adpting flange and processing all are simplified.The utility model not only can reduce the magnetic resistance of magnetic loop, bigger the suction-combining force is provided, can also improve simultaneously the structural strength of plunger tube and even the join strength between the whole each several part of Electrical heads, for example, thicken the plunger tube wall thickness on the one hand, make it high pressure resistant medium, improved the structural strength of plunger tube; Strengthened the join strength between fixed core and the plunger tube on the other hand; Strengthened the join strength between plunger tube and the adpting flange more on the one hand, thereby improved adaptability high-pressure working medium.
In order to express easily explanation, this specification alleged " on ", illustrated orientation in all relative Figure of description of D score notion, do not constitute restriction to true bearing.
Claims (10)
1. high-pressure solenoid valve, comprise valve body and high-voltage electromagnetic head, described high-voltage electromagnetic head is installed on the described valve body, described high-voltage electromagnetic head comprises coil and plunger tube, described plunger tube is positioned at described coil, the outside, bottom that it is characterized in that described plunger tube is with magnet case, the bottom or the whole plunger tube that are positioned at described magnet case adopt thin walled structures, the wall thickness of described thin walled structures is less than the wall thickness that is positioned at the outer plunger tube main body of described magnet case, be provided with moving iron core and fixed core in the described plunger tube, described fixed core is positioned at described moving top unshakable in one's determination, and it is fixedly connected with described plunger tube, described moving iron core and described plunger tube Spielpassung, and connect the valve rod of described valve body.
2. high-pressure solenoid valve according to claim 1 is characterized in that being provided with magnetic conductive disk below the described coil, and described magnet case upper end contacts with described magnetic conductive disk or leaves the gap.
3. high-pressure solenoid valve according to claim 2, it is characterized in that described thin walled structures matches with the endoporus of the magnet case that is enclosed within its outside, the endoporus top of described magnet case and described plunger tube main body scyewed joint, the wall thickness of described thin walled structures is less than or equal to 2mm.
4. high-pressure solenoid valve according to claim 3 is characterized in that the outwards structure of turnover is adopted in the bottom of described thin walled structures, is welded to connect and seals between its end and the described adpting flange.
5. high-pressure solenoid valve according to claim 4 is characterized in that the upper end of described magnet case and described plunger tube are welded to connect.
6. according to claim 1,2,3,4 or 5 described high-pressure solenoid valve, it is characterized in that described fixed core adopts the up-small and down-big gauge structure that do not wait, its top connects with the inner hole thread of described plunger tube, and match with the endoporus of described plunger tube in the bottom.
7. high-pressure solenoid valve according to claim 6 is characterized in that mode that described fixed core is fixedlyed connected with described plunger tube is that the top and the described fixed core of described plunger tube is welded to connect and seals.
8. high-pressure solenoid valve according to claim 7, the upper and lower that it is characterized in that described coil is respectively equipped with concentrating flux sleeve and following concentrating flux sleeve, the internal diameter of described upper and lower concentrating flux sleeve all contacts with the external diameter of described plunger tube, the described upper surface of going up concentrating flux sleeve touches with the magnetic conduction shell joint that is positioned at described coil outside, and the described lower surface of concentrating flux sleeve down contacts with the upper surface of described magnetic conductive disk.
9. high-pressure solenoid valve according to claim 8, it is characterized in that described magnet case bottom is fixedly connected with adpting flange or is provided with worm structure, the Placement of described high-voltage electromagnetic head and described valve body is for being connected with described valve body flange by described adpting flange or being threaded with described valve body by described worm structure.
10. high-pressure solenoid valve according to claim 9, it is characterized in that the described magnet case bottom and the fixedly connected mode of described adpting flange are that the external diameter of described magnet case bottom connects with the inner hole thread of described adpting flange, the worm structure that described magnet case bottom is provided with is to be set directly at the link that is provided with screw thread that outside thread on the described magnet case or internal thread or described magnet case connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201753652U CN201475474U (en) | 2009-08-27 | 2009-08-27 | High-voltage solenoid valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201753652U CN201475474U (en) | 2009-08-27 | 2009-08-27 | High-voltage solenoid valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201475474U true CN201475474U (en) | 2010-05-19 |
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ID=42411724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201753652U Expired - Fee Related CN201475474U (en) | 2009-08-27 | 2009-08-27 | High-voltage solenoid valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201475474U (en) |
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2009
- 2009-08-27 CN CN2009201753652U patent/CN201475474U/en not_active Expired - Fee Related
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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: 20100519 Termination date: 20120827 |