CN220816721U - Pilot-operated electromagnetic valve structure - Google Patents
Pilot-operated electromagnetic valve structure Download PDFInfo
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- CN220816721U CN220816721U CN202322751346.2U CN202322751346U CN220816721U CN 220816721 U CN220816721 U CN 220816721U CN 202322751346 U CN202322751346 U CN 202322751346U CN 220816721 U CN220816721 U CN 220816721U
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- pressure
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- 230000000694 effects Effects 0.000 claims description 4
- 230000008676 import Effects 0.000 claims description 3
- 230000006872 improvement Effects 0.000 abstract description 3
- 238000007789 sealing Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 3
- 238000007906 compression Methods 0.000 description 2
- 230000005389 magnetism Effects 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229920003225 polyurethane elastomer Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Magnetically Actuated Valves (AREA)
Abstract
The utility model discloses a pilot-operated electromagnetic valve structure which comprises a coil assembly, a nozzle body, a valve body and a valve seat which are sequentially connected, wherein an armature capable of moving along an axis is arranged in the coil assembly, an end cap is arranged at the end part of the coil assembly, which corresponds to the armature, the valve seat is connected with one end of the valve body, a main valve core capable of moving along the axis is arranged in the valve body, an inlet is arranged on the valve body, an outlet is arranged on the valve seat, a channel is arranged at the center of the main valve core, which corresponds to the outlet, a pilot seal piece is arranged on the armature, a pressure release cavity is formed between the armature and the main valve core, pressure release channels for communicating the inlet and the pressure release cavity are respectively arranged at two sides of the channel in the main valve core, and the two pressure release channels are symmetrically arranged. Two orifices and pressure relief channels are arranged on the main valve core, the structures on the two sides of the main valve core are symmetrically arranged, the stress is balanced, and the main valve core axis deviation is not easy to cause; the spring pressure-resistant seat is arranged on the inner side of the end cap, so that the impact on the fixed part is reduced; the operation is stable and reliable, and the improvement cost is relatively low.
Description
Technical Field
The utility model relates to the technical field of electromagnetic valves, in particular to a pilot type electromagnetic valve structure.
Background
At present, the pilot electromagnetic valve is widely applied to new energy automobiles; the existing pilot electromagnetic valve is complex in structure, the main valve core is of a split structure, pressure resistance is poor, a pressure release channel of the main valve core is arranged on one side, stress is uneven, and long-time opening and closing easily causes axial deviation of the main valve core to cause internal leakage.
The structure of the ultra-high pressure pilot electromagnetic valve with quick response is disclosed in Chinese patent CN216479196U, and is divided into an auxiliary sealing structure, a main sealing structure, a guiding structure, an armature limiting structure and a main valve limiting structure from the aspects of sealing and functions; the pressure release channel of the main valve core is arranged on one side, so that the stress is unbalanced, the axial line of the main valve core is easy to deviate for a long time to cause internal leakage, and if the pressure release channel is applied to the field of hydrogen fuel cells or the chemical industry, accidents can be caused by medium leakage; and the armature moves up and down to be in direct contact with the end cap, so that the fixed piece is easy to impact and wear.
Disclosure of utility model
Aiming at the defects of the prior art, the utility model aims to provide a pilot-operated electromagnetic valve structure so as to achieve the purposes of balanced stress on two sides and stable and reliable work.
In order to solve the technical problems, the utility model adopts the following technical scheme:
This guide formula solenoid valve structure, including coil pack, nozzle body, valve body and the disk seat that link to each other in proper order, be equipped with the armature that can follow the axis activity in the coil pack, coil pack tip corresponds the armature and is equipped with the end cap, and the disk seat links to each other with valve body one end, is equipped with the main valve core that can follow the axis activity in the valve body, is equipped with the import on the valve body, is equipped with the export on the disk seat, and the center of main valve core corresponds the export and is equipped with the passageway, corresponds the passageway on the armature and is equipped with the guide seal spare, forms the pressure release chamber between armature and the main valve core, be equipped with a pressure release passageway that is used for intercommunication import and pressure release chamber in the main valve core both sides respectively, two pressure release passageways symmetry set up.
Further:
A valve cavity is formed between the valve body and the main valve core, and an orifice used for being communicated with the valve cavity is arranged on the main valve core corresponding to one end of each pressure relief channel.
And a spring pressure-resistant seat is arranged on the inner side of the end cap and positioned in the coil assembly corresponding to the armature.
The two orifices are symmetrically arranged.
And a spring is arranged between the spring pressure-resistant seat and the armature.
The inner side of the end cap is provided with a step structure, and one side of the spring pressure-resistant seat is matched with the step structure.
The other side of the spring pressure-resistant seat is provided with an inclined plane structure which is matched with one end of the armature.
Compared with the prior art, the utility model has the following advantages:
The pilot electromagnetic valve is reasonable in structural design, two orifices and pressure relief channels are formed in the main valve core, the structures on the two sides of the main valve core are symmetrically arranged, the stress is balanced, and the main valve core axis is not easy to deviate; the spring pressure-resistant seat is arranged on the inner side of the end cap, so that the impact on the fixed part is reduced; the operation is stable and reliable, and the improvement cost is relatively low.
Drawings
The contents and the marks in the drawings expressed in the drawings of the present specification are briefly described as follows:
FIG. 1 is a schematic diagram of a solenoid valve according to the present utility model.
FIG. 2 is a schematic diagram of the pilot valve opening operation of the present utility model.
FIG. 3 is a schematic diagram of the opening operation of the main valve of the present utility model.
Fig. 4 is a schematic view of an electromagnet assembly according to the present utility model.
FIG. 5 is a schematic view of a main valve assembly of the present utility model.
In the figure:
01-end cap; 02-compression nut; 03-magnetism isolating sleeve; 04-coil assembly; 05-a spring; 06-a pilot seal; 07-limiting gaskets; 08-sealing ring; 09-valve body; 10-valve seat gasket; 11-valve seat; 12-a main valve core; 13-a nozzle body; 14-armature; 15-orifice A; 16-a pressure release channel A; 17-orifice B; 18-a pressure release channel B; 19-a pressure relief chamber; 20-channel; 21-outlet; 22-spring pressure-resistant seat.
Detailed Description
The following description of the embodiments of the present utility model refers to the accompanying drawings, which illustrate in further detail.
As shown in fig. 1 to 5, the pilot-operated solenoid valve structure includes a coil block 04, a nozzle body 13, a valve body 09, and a valve seat 11, which are sequentially connected; the inner wall of the coil component is provided with a magnetism isolating sleeve 03, an armature 14 which can move along the axis is arranged in the magnetism isolating sleeve, the end part of the coil component is provided with an end cap 01 corresponding to the armature, and the end cap is fixed through a compression nut 02.
The valve seat 11 is connected with one end of the valve body 09, a threaded hole is formed in the inner wall of one end of the valve body, and the valve seat is connected with one end of the valve body through a threaded structure, so that the connection is simple and convenient; the nozzle body is connected with the valve body, an annular groove is arranged at the joint, a limiting gasket 07 is fixed in the annular groove, and the limiting gasket is an annular gasket; a valve cavity is formed between the valve body, the annular gasket and the valve seat, a pressure release cavity 19 is formed between the nozzle body, the annular gasket and the armature, a main valve core 12 capable of moving along the axis is arranged in the valve body, an inlet is arranged on the valve body, an outlet 21 is arranged on the valve seat, a channel 20 is arranged at the center of the main valve core corresponding to the outlet, one end of the channel at the center of the main valve core can be connected with the pressure release cavity, and the other end of the channel at the center of the main valve core can be connected with the outlet.
The corresponding channel on the armature 14 is provided with a pilot seal piece 06, the pilot seal piece is embedded on the end part of the corresponding channel of the armature, a pressure release cavity 19 is formed between the armature and the main valve core and between the armature and the annular gasket, two pressure release channels for communicating an inlet and the pressure release cavity are respectively arranged on two sides of the channel in the main valve core 12, and the two pressure release channels are symmetrically arranged; a valve cavity is formed between the valve body and the main valve core, a sealing ring 8 is arranged between the outer edge of the main valve core and the valve body, and one end of the main valve core corresponding to each pressure relief channel is provided with an orifice which is used for being communicated with the valve cavity.
Specifically, one end of the pressure relief channel a16 is an orifice a15, one end of the pressure relief channel B18 is an orifice B17, and the two orifices are symmetrically arranged. The other ends of the pressure release channel A and the pressure release channel B are communicated with the pressure release cavity; the center of one end of the main valve core is provided with a bulge corresponding to the pilot sealing piece, and the other ends of the two pressure relief channels are respectively positioned at two sides of the bulge; a valve seat sealing gasket 10 is arranged between the main valve core and the valve seat in the valve body, and a through hole connected with the outlet is formed in the center of the valve seat sealing gasket.
Two orifices and pressure release channels are arranged on the main valve core, the structures on the two sides of the main valve core are symmetrically arranged, the stress is balanced, and the main valve core axis deviation is not easy to cause.
The inner side of the end cap 01 is provided with a spring pressure-resistant seat 22 corresponding to the armature in the coil assembly; a spring 05 is arranged between the spring pressure-resistant seat and the armature; the end of the armature corresponding to the pressure-resistant seat is provided with a groove, one end of the spring is positioned in the groove, and the structure is stable and reliable.
Furthermore, the inner side of the end cap is provided with a step structure, one side of the spring pressure-resistant seat 22 is matched with the step structure, and the structure is stable and reliable; the other side of the spring pressure-resistant seat is provided with an inclined plane structure matched with one end of the armature, so that the contact area is large, and a good buffering effect is achieved.
In the utility model, the spring pressure-resistant seat is arranged at the inner side of the end cap, so that the impact on the fixed part is reduced; the pressure-resistant seat material is preferably polyurethane rubber; the operation is stable and reliable, and the improvement cost is relatively low.
As shown in fig. 1 to 3, when the solenoid valve is opened, a coil in the solenoid assembly is energized, an upward electromagnetic force is applied to an armature in the pilot assembly, and as the electromagnetic force increases, the pilot assembly overcomes a downward force generated by spring deformation, and moves to an upper limit of the pilot assembly; in this process, the main valve is out of contact with the pilot seal, the main valve passage is open, and at this time, the pressure in the pressure relief chamber above the pressure relief passage A, B is reduced to a level close to the main valve passage, but the air pressure below the main valve element has not yet been reduced, so that a pressure difference is generated between the lower surface and the upper surface of the main valve element, and this pressure pushes the main valve assembly to move upward to the upper limit of the main valve assembly. When the solenoid valve is closed, the coil loses current, the pilot assembly is guided by the spring force to move downwards from the upper limit of the pilot assembly, and when the pilot seal of the pilot assembly is in contact with the main valve assembly, the spring force pushes the pilot assembly to move downwards together with the main valve assembly to the lower limit of the main valve assembly.
The foregoing description is only illustrative of the preferred embodiments of the present utility model, and the above-described technical features may be arbitrarily combined to form a plurality of embodiments of the present utility model.
While the utility model has been described above with reference to the accompanying drawings, it will be apparent that the utility model is not limited to the above embodiments, but is capable of being modified or applied to other applications without any modification, as long as the inventive concept and technical scheme are adopted.
Claims (7)
1. The utility model provides a guide formula solenoid valve structure, including coil pack, the nozzle body, valve body and the disk seat that link to each other in proper order, be equipped with the armature that can follow the axis activity in the coil pack, coil pack tip corresponds the armature and is equipped with the end cap, the disk seat links to each other with valve body one end, be equipped with the main valve core that can follow the axis activity in the valve body, be equipped with the import on the valve body, be equipped with the export on the disk seat, the center of main valve core corresponds the export and is equipped with the passageway, corresponds the passageway on the armature and is equipped with the guide seal spare, form pressure release chamber between armature and the main valve core, its characterized in that: the two sides of the channel in the main valve core are respectively provided with a pressure relief channel used for communicating the inlet and the pressure relief cavity, and the two pressure relief channels are symmetrically arranged.
2. A pilot operated solenoid valve structure as set forth in claim 1 wherein: a valve cavity is formed between the valve body and the main valve core, and an orifice used for being communicated with the valve cavity is arranged on the main valve core corresponding to one end of each pressure relief channel.
3. A pilot operated solenoid valve structure as set forth in claim 1 wherein: and a spring pressure-resistant seat is arranged on the inner side of the end cap and positioned in the coil assembly corresponding to the armature.
4. A pilot operated solenoid valve structure as set forth in claim 2 wherein: the two orifices are symmetrically arranged.
5. A pilot operated solenoid valve structure as set forth in claim 3 wherein: and a spring is arranged between the spring pressure-resistant seat and the armature.
6. A pilot operated solenoid valve structure as set forth in claim 3 wherein: the inner side of the end cap is provided with a step structure, and one side of the spring pressure-resistant seat is matched with the step structure.
7. The pilot operated solenoid valve structure as set forth in claim 6, wherein: the other side of the spring pressure-resistant seat is provided with an inclined plane structure which is matched with one end of the armature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322751346.2U CN220816721U (en) | 2023-10-13 | 2023-10-13 | Pilot-operated electromagnetic valve structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322751346.2U CN220816721U (en) | 2023-10-13 | 2023-10-13 | Pilot-operated electromagnetic valve structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220816721U true CN220816721U (en) | 2024-04-19 |
Family
ID=90679454
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322751346.2U Active CN220816721U (en) | 2023-10-13 | 2023-10-13 | Pilot-operated electromagnetic valve structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220816721U (en) |
-
2023
- 2023-10-13 CN CN202322751346.2U patent/CN220816721U/en active Active
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