CN220688071U - Electromagnetic valve for precisely controlling fluid - Google Patents
Electromagnetic valve for precisely controlling fluid Download PDFInfo
- Publication number
- CN220688071U CN220688071U CN202322231916.5U CN202322231916U CN220688071U CN 220688071 U CN220688071 U CN 220688071U CN 202322231916 U CN202322231916 U CN 202322231916U CN 220688071 U CN220688071 U CN 220688071U
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- valve
- iron core
- needle
- fluid
- base
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- 239000012530 fluid Substances 0.000 title claims abstract description 46
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 56
- 238000007789 sealing Methods 0.000 claims abstract description 17
- 230000005294 ferromagnetic effect Effects 0.000 claims abstract description 16
- 238000003466 welding Methods 0.000 claims abstract description 7
- 230000003068 static effect Effects 0.000 claims description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 7
- 239000002131 composite material Substances 0.000 claims description 5
- 229920000642 polymer Polymers 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 5
- 239000002861 polymer material Substances 0.000 claims description 4
- 230000009471 action Effects 0.000 description 5
- 230000033001 locomotion Effects 0.000 description 5
- 230000005291 magnetic effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000002706 hydrostatic effect Effects 0.000 description 3
- 230000010354 integration Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000002860 competitive effect Effects 0.000 description 1
- 239000000306 component Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Magnetically Actuated Valves (AREA)
Abstract
The utility model discloses a solenoid valve for precisely controlling fluid, and relates to the technical field of fluid control of industrial and medical instruments and automobile hydraulic braking systems. This a valve for fluid precision control solenoid valve, including inside hollow valve shell, the valve shell is inside to be provided with to move the iron core, valve shell surface a week is provided with ferromagnetic coil, move the iron core lower extreme and be located the inside quiet iron core that is provided with of ferromagnetic coil, it is provided with the needle to move iron core lower surface and be located quiet iron core inside, quiet iron core inboard is cut and is located the needle outside and be provided with the spring bracket, the spring bracket upper surface is provided with the return spring who is connected to the needle, quiet iron core lower surface is provided with the valve base, the inside throttle duct that is provided with of valve base, valve base upper end is provided with the sealing seat, valve base inside right-hand member is provided with the valve ball chamber, quiet iron core lower extreme is provided with hydraulic valve piece, valve shell passes through laser welding with quiet iron core and is connected.
Description
Technical Field
The utility model relates to the technical field of industrial and medical instrument fluid control and automobile hydraulic braking systems, in particular to a solenoid valve for fluid precise control.
Background
Solenoid valves for precision fluid control are widely used and required in the fields related to industrial fluid control, medical instrument fluid control, and automotive hydraulic brake systems. As a core component in fluid control, a precision solenoid valve plays an important role.
At present, most of domestic solenoid valves can only meet the functions of extensive switching valves, cannot meet the requirements of high-precision regulation and control functions in some precise fluid control fields, and meanwhile, products are poor in consistency and durability, leakage and other problems occur in long-term working, or in order to achieve the same performance level, the solenoid valves are designed to be redundant in structure, and valve bodies are fastened and connected by means of parts with high processing cost and large size such as threads, so that the domestic solenoid valve has no market competitive advantage compared with foreign brand products in the precise solenoid valve products.
Disclosure of Invention
(one) solving the technical problems
Aiming at the defects of the prior art, the utility model provides the electromagnetic valve for precisely controlling the fluid, which solves the problems that the domestic electromagnetic valve is unreasonable in design, can only achieve the rough valve opening and closing function, and cannot realize the performance requirement of precisely controlling the fluid.
(II) technical scheme
In order to achieve the above purpose, the utility model is realized by the following technical scheme: the utility model provides a be used for fluid precision control solenoid valve, includes inside cavity and lower extreme open-ended valve shell, the inside iron core that moves that is provided with of valve shell surface, valve shell surface a week is provided with ferromagnetic coil, ferromagnetic coil surface parcel has ferromagnetic coil shell, it is provided with quiet iron core to move iron core lower extreme and be located ferromagnetic coil inside, it is provided with the needle to move iron core lower surface and be located quiet iron core inside, quiet iron core inboard and be located the needle outside and be provided with the spring bracket, spring bracket upper surface is provided with the return spring who is connected to the needle, quiet iron core lower surface is provided with the valve base, the inside throttle duct that is provided with of valve base, valve base upper end is provided with the sealing seat, valve base inside right-hand member is provided with the valve ball chamber, valve ball chamber upper end is provided with the valve ball chamber water inlet, valve ball chamber lower extreme left side is provided with the valve ball chamber delivery port, quiet iron core lower extreme is provided with hydraulic pressure valve piece, quiet iron core lower extreme and be located sealing seat upper end and be provided with the delivery port and extend to the valve piece, valve core and valve core are connected through the laser welding with the valve.
Preferably, the valve base is formed by adopting a high polymer material with certain elasticity, and forms interference press fit with the inner wall of the hydraulic valve block.
Preferably, the hydraulic valve block is fixed with the step flange edge structure of the static iron core through a riveting process.
Preferably, the two sides of the movable iron core are provided with diversion trenches.
Preferably, the valve needle is made of a polymer composite material.
(III) beneficial effects
The utility model provides a solenoid valve for precisely controlling fluid. The beneficial effects are as follows:
(1) The fluid precise control electromagnetic valve utilizes the spring support to isolate the return spring from the main fluid control area of the valve needle and the sealing seat, so that the influence on the fluid flow when the return spring compresses or rebounds and stretches is avoided, the fluid movement control is not disturbed, and the precise control performance of the electromagnetic valve is ensured.
(2) The electromagnetic valve for precisely controlling the fluid is in a welding and mortise-tenon connection mode, is high in integration degree and simple in structure, and does not need large-size components to connect the valve body.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a cross-sectional view of the present utility model;
FIG. 3 is a detail drawing of the present utility model;
FIG. 4 is an enlarged view of a portion of a valve ball of the present utility model;
fig. 5 is an enlarged view of a portion of the return spring of the present utility model.
In the figure: 1. a valve housing; 2. a movable iron core; 3. a ferromagnetic coil; 4. a stationary core; 5. a return spring; 6. a circumferential filter screen; 7. a valve base; 8. a flat bottom filter screen; 9. a valve needle; 10. a spring bracket; 11. a sealing seat; 12. a valve ball; 13. a hydraulic valve block; 14. laser welding marks; 21. a throttle orifice; 22. a water outlet; 23. a valve ball cavity; 24. a valve ball cavity water inlet; 25. a valve ball cavity water outlet; 26. a ferromagnetic coil housing.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-5, the present utility model provides a technical solution: the utility model provides a be used for fluid precision control solenoid valve, includes inside cavity and lower extreme open-ended valve shell 1, valve shell 1 inside is provided with movable core 2, valve shell 1 surface a week is provided with ferromagnetic coil 3, ferromagnetic coil 3 surface parcel has ferromagnetic coil shell 26, movable core 2 lower extreme and be located ferromagnetic coil 3 inside and be provided with quiet iron core 4, movable core 2 lower surface and be located quiet iron core 4 inside and be provided with needle 9, quiet iron core 4 inboard and be located the needle 9 outside and be provided with spring bracket 10, spring bracket 10 upper surface is provided with the return spring 5 that is connected to needle 9, quiet iron core 4 lower surface is provided with valve base 7, valve base 7 inside is provided with throttle bore 21, valve base 7 upper end is provided with sealing seat 11, valve base 7 inside right-hand member is provided with valve ball chamber 23, valve ball chamber 23 inside is provided with valve ball 12, valve ball chamber 23 upper end is provided with ball chamber water inlet 24, ball chamber 23 lower extreme left side is provided with delivery port 25, quiet iron core 4 is provided with the valve seat 13 and is located the valve end and is connected to valve core 4 under the hydrostatic head 13, valve base 7 is provided with the hydrostatic head through valve base 13, valve end is located the hydrostatic head 13 and is connected to valve core 4.
In operation, when the electromagnetic coil 3 is not electrified, all parts in the electromagnetic valve do not move, and the electromagnetic valve for precisely controlling the fluid is equivalent to a static throttle valve. The fluid from the water outlet 22 in the hydraulic valve block 13 flows through the throttling hole 21 in the center of the valve base 7, passes through the hole in the static iron core 4, enters the main fluid area, flows out from the water outlet 22 on the side surface of the static iron core 4, and finally enters the oil way in the hydraulic valve block. When the liquid flows reversely, the liquid flows into the static iron core 4 from the water outlet 22, flows into the valve ball cavity 23 through the valve ball cavity water inlet 24, and flows back into the hydraulic valve block 13 after the electromagnetic coil 3 is electrified, an induction magnetic field is generated in the coil inner space, namely the valve body according to the law of electromagnetic induction, the movable iron core 2 and the static iron core 4 are magnetized, so that the movable iron core 2 is attracted mutually, the valve needle 9 is pushed to move downwards under the action of the magnetic attraction force of the static iron core 4 against the elastic force of the return spring 5 and the pressure action of fluid at the bottom of the valve, the conical surface of the sealing seat 11 is approached, when the current of the electromagnetic coil 3 is controlled to be larger, the magnetic attraction force of the static iron core 4 to the movable iron core 2 is also larger, the gap formed by the valve needle 9 and the conical surface of the sealing seat 11 is smaller, and the fluid flow flowing through the gap flow channel is limited to be larger, so that the purpose of accurately controlling the output fluid flow is realized. Meanwhile, the spring bracket 10 supports the return spring 5, so that the compression or extension of the return spring 5 is avoided to interfere with the movement of the fluid, and the accurate regulation and control of the fluid are prevented. When the current is large enough, the magnetic attraction of the static iron core 4 to the movable iron core 2 is large enough, the valve needle 9 is propped against the conical surface of the sealing seat 11, the ball head surface of the valve needle 9 can generate elastic deformation due to compression, and a sealing effect is formed with the sealing seat 11, at the moment, high-pressure fluid flowing in from the bottom of the valve can be completely sealed, and cannot flow out of the valve, so that the full sealing effect of the electromagnetic valve is realized. The valve housing 1 and the static iron core 4 are connected by adopting laser welding, so that the connection strength is ensured, and the tightness is ensured.
Referring to fig. 1-2, the present utility model provides a technical solution: the throttle duct position of valve base 7 lower extreme is provided with flat screen 8, quiet iron core 4 surface lower extreme just is provided with circumference screen 6 in delivery port 22 position.
During operation, no matter in forward flow or reverse flow, the circumferential filter screen 6 and the flat bottom filter screen 8 can filter impurities and pollutants in the liquid, so that the impurities and pollutants are prevented from entering the electromagnetic valve for precisely controlling the fluid to influence the accuracy.
Referring to fig. 1-2, the present utility model provides a technical solution: the valve base 7 is formed by adopting a high polymer material with certain elasticity, and forms interference press fit with the inner wall of the hydraulic valve block 13.
When the valve base 7 is in operation, the valve base is formed by adopting a high polymer material with certain elasticity, and forms interference press fit sealing with the inner wall of the hydraulic valve block 13, so that the cost is saved, and the reliability is good.
Referring to fig. 1-2, the present utility model provides a technical solution: the hydraulic valve block 13 is fixed with the step flange edge structure of the static iron core 4 through a riveting process.
During operation, not only the connection strength is ensured, but also the tightness is ensured, no additional fixed connection structure such as screw threads is needed, the integration level is high, and the space is saved.
Referring to fig. 1-3, the present utility model provides a technical solution: the two sides of the movable iron core 2 are provided with diversion trenches.
When the electromagnetic valve works, a flow channel at the upper end and the lower end of the movable iron core 2 is provided for fluid, so that the damping effect of the movable iron core 2 due to moving fluid is reduced, the movable iron core 2 pushes the valve needle 9 to move flexibly and rapidly, and the accurate controllability of the electromagnetic valve is ensured.
Referring to fig. 1-2, the present utility model provides a technical solution: the valve needle 9 is made of a polymer composite material.
When the electromagnetic valve works, the valve needle 9 is made of a high polymer composite material, has light weight and small movement inertia, moves up and down flexibly under the pushing of the movable iron core 2 and the return spring 5, ensures the accuracy of the motion control of the electromagnetic valve, and meanwhile, the high polymer composite material has certain elasticity, so that a spherical structure of the head part of the valve needle 9 and the conical surface of the sealing seat 11 form good dynamic seal.
In summary, the fluid precise control electromagnetic valve for fluid utilizes the spring bracket 10 to isolate the return spring 5 from the main fluid control area of the valve needle 9 and the sealing seat 11, thereby avoiding the influence on the fluid flow when the return spring compresses 5 or rebounds and stretches, ensuring the precise control performance of the electromagnetic valve without interference on the fluid movement control.
The electromagnetic valve for precisely controlling the fluid is in a welding and mortise-tenon connection mode, is high in integration degree and simple in structure, and does not need large-size parts to connect the valve body.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A valve housing (1) for a fluid precision control solenoid valve, comprising an internal hollow and open-ended lower end, characterized in that: the valve is characterized in that a movable iron core (2) is arranged inside the valve housing (1), a ferromagnetic coil (3) is arranged on the periphery of the outer surface of the valve housing (1), a ferromagnetic coil housing (26) is wrapped on the outer surface of the ferromagnetic coil (3), a static iron core (4) is arranged inside the movable iron core (2) and positioned inside the ferromagnetic coil (3), a valve needle (9) is arranged inside the movable iron core (2), a spring support (10) is arranged inside the static iron core (4) and outside the valve needle (9), a return spring (5) connected to the valve needle (9) is arranged on the upper surface of the spring support (10), a valve base (7) is arranged on the lower surface of the static iron core (4), a throttle duct (21) is arranged inside the valve base (7), a sealing seat (11) is arranged at the upper end of the valve base (7), a valve ball cavity (23) is arranged at the right end inside the valve base (7), a ball (12) is arranged inside the valve ball cavity (23), a ball inlet (24) is arranged at the upper end of the valve ball cavity (23), a valve ball inlet (25) is arranged at the left end of the valve ball cavity (4), the valve is characterized in that a water outlet (22) extending to one end of the hydraulic valve block (13) is arranged at the lower end of the static iron core (4) and positioned at the upper end of the sealing seat (11), and the valve shell (1) is connected with the static iron core (4) through laser welding.
2. A solenoid valve for precision fluid control according to claim 1, wherein: the throttle duct position of valve base (7) lower extreme is provided with flat bottom filter screen (8), quiet iron core (4) surface lower extreme just is provided with circumference filter screen (6) in delivery port (22) position.
3. A solenoid valve for precision fluid control according to claim 1, wherein: the valve base (7) is formed by adopting a high polymer material with certain elasticity, and forms interference press fit with the inner wall of the hydraulic valve block (13).
4. A solenoid valve for precision fluid control according to claim 1, wherein: the hydraulic valve block (13) is fixed with the step flange edge structure of the static iron core (4) through a riveting process.
5. A solenoid valve for precision fluid control according to claim 1, wherein: both sides of the movable iron core (2) are provided with diversion trenches.
6. A solenoid valve for precision fluid control according to claim 1, wherein: the valve needle (9) is made of a polymer composite material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322231916.5U CN220688071U (en) | 2023-08-18 | 2023-08-18 | Electromagnetic valve for precisely controlling fluid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322231916.5U CN220688071U (en) | 2023-08-18 | 2023-08-18 | Electromagnetic valve for precisely controlling fluid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220688071U true CN220688071U (en) | 2024-03-29 |
Family
ID=90370255
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322231916.5U Active CN220688071U (en) | 2023-08-18 | 2023-08-18 | Electromagnetic valve for precisely controlling fluid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220688071U (en) |
-
2023
- 2023-08-18 CN CN202322231916.5U patent/CN220688071U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |