CN108413106B - Proportional solenoid valve capable of accurately controlling micro flow - Google Patents
Proportional solenoid valve capable of accurately controlling micro flow Download PDFInfo
- Publication number
- CN108413106B CN108413106B CN201810216360.3A CN201810216360A CN108413106B CN 108413106 B CN108413106 B CN 108413106B CN 201810216360 A CN201810216360 A CN 201810216360A CN 108413106 B CN108413106 B CN 108413106B
- Authority
- CN
- China
- Prior art keywords
- valve
- armature
- assembly
- valve body
- shell
- Prior art date
- 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.)
- Active
Links
- 239000011258 core-shell material Substances 0.000 claims description 23
- 238000003825 pressing Methods 0.000 claims description 13
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 230000036316 preload Effects 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims 3
- 230000001276 controlling effect Effects 0.000 claims 1
- 229910052742 iron Inorganic materials 0.000 claims 1
- 230000001105 regulatory effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 9
- 238000010894 electron beam technology Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 235000014676 Phragmites communis Nutrition 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920002493 poly(chlorotrifluoroethylene) Polymers 0.000 description 2
- 239000005023 polychlorotrifluoroethylene (PCTFE) polymer Substances 0.000 description 2
- 229920001721 polyimide Polymers 0.000 description 2
- 239000009719 polyimide resin Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229910052724 xenon Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011217 control strategy Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 239000003380 propellant Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0675—Electromagnet aspects, e.g. electric supply therefor
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mechanical Engineering (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
The invention discloses a proportional electromagnetic valve for accurately controlling micro flow, which comprises: the valve comprises an inlet connector, a valve body-coil assembly, an outer magnetizer, an armature assembly, a valve seat assembly, an outlet connector, a first shell and a second shell; wherein the first housing and the second housing are connected; the valve body-coil assembly, the outer magnetizer and the armature assembly are all arranged in an inner space formed by the first shell and the second shell, and the valve body-coil assembly is connected with the armature assembly; the outer magnetizer is sleeved outside the valve body-coil assembly; the inlet connector is connected with the valve body-coil assembly; one end face of the outlet connector is in pressure joint with the armature component, and the side wall of the outlet connector is connected with the second shell; the valve seat assembly is arranged in the outlet connector, and one end of the armature assembly is embedded in the valve seat assembly. The invention can realize the function of high-precision continuous output control of pressure and flow and can effectively ensure the reliable work of the electric propulsion system.
Description
Technical Field
The invention belongs to the technical field of spacecraft space fluid management, and particularly relates to a proportional electromagnetic valve for accurately controlling micro flow.
Background
The new generation of DFH-5 satellite platform in China requires that an electric propulsion system works in a multi-mode with variable power and thrust to complete tasks of satellite orbit transfer, orbit entering, on-orbit position keeping, momentum wheel unloading and the like. To achieve operation of the electric propulsion system in a multi-mode manner, the storage and supply subsystem must be capable of providing a variable and precisely controllable flow of micro-xenon to the thruster.
The conventional mechanical pressure reduction throttling mode can not meet the requirement of on-orbit flow rate change, and the bang-bang electronic pressure negative feedback control strategy which takes a high-speed on-off electromagnetic valve as a core is adopted to control in the large and small flow rate switching process, so that the system response time is slow, extra xenon wage waste is caused, and the working performance of the electric thruster is also influenced.
Disclosure of Invention
The technical problem solved by the invention is as follows: the proportional electromagnetic valve overcomes the defects of the prior art, can realize the continuous regulation capability of output flow, can realize the continuous output control function of high-precision pressure and flow, and can effectively ensure the reliable work of an electric propulsion system.
The purpose of the invention is realized by the following technical scheme: a proportional solenoid valve for precise control of minute flow, comprising: the valve comprises an inlet connector, a valve body-coil assembly, an outer magnetizer, an armature assembly, a valve seat assembly, an outlet connector, a first shell and a second shell; wherein the first housing and the second housing are connected; the valve body-coil assembly, the outer magnetizer and the armature assembly are all arranged in an inner space formed by the first shell and the second shell, and the valve body-coil assembly is connected with the armature assembly; the outer magnetizer is sleeved outside the valve body-coil assembly; the inlet connector is connected with the valve body-coil assembly; one end face of the outlet connector is in pressure joint with the armature component, and the side wall of the outlet connector is connected with the second shell; the valve seat assembly is arranged in the outlet connector, and one end of the armature assembly is embedded in the valve seat assembly.
In the proportional solenoid valve for accurately controlling micro flow, the valve body-coil assembly comprises a valve body, a coil and a spring; the coil is wound on the valve body; the spring is sleeved on the valve body and is in pressure joint with one end face of the coil.
In the proportional solenoid valve for accurately controlling the micro flow, the armature assembly comprises an armature and a supporting spring assembly; wherein, the supporting spring component is sleeved on the armature.
In the proportional solenoid valve for accurately controlling the micro flow, the supporting spring assembly comprises a first supporting spring, a second supporting spring, an outer backing ring, an inner backing ring and a pressing ring; the first supporting spring, the second supporting spring, the outer backing ring, the inner backing ring and the pressing ring are all sleeved on the armature; the outer backing ring and the inner backing ring are arranged between the first supporting spring and the second supporting spring, and the central lines of the outer backing ring, the inner backing ring, the first supporting spring and the second supporting spring are superposed; and the pressing ring is in compression joint with the outer surface of the second supporting spring.
In the proportional electromagnetic valve for accurately controlling the micro flow, the armature is of a T-shaped needle valve structure.
In the proportional solenoid valve for accurately controlling micro flow, the valve seat assembly comprises an upper valve core shell, a plurality of disc springs, a valve core and a lower valve core shell; wherein, the upper valve core shell is connected with the lower valve core shell; the plurality of disc springs and the valve core are arranged in an inner space formed by the upper valve core shell and the lower valve core shell, and the plurality of disc springs are in compression joint with the valve core.
In the proportional solenoid valve for precisely controlling a small flow rate, a diameter of the first housing is equal to a diameter of the second housing.
In the above-mentioned proportional solenoid valve of minute flow accurate control, still include: filtering with a screen; wherein the screen is disposed within the inlet fitting.
In the proportional electromagnetic valve for accurately controlling the micro flow, the terminal taper angle alpha of the armature is 20-45 degrees.
In the proportional electromagnetic valve for precisely controlling the micro flow, the valve core is made of PCTFE or polyimide resin.
In the proportional electromagnetic valve for accurately controlling micro flow, the large cylinder of the valve body is attractedThe diameter of the bottom surface is phi D, and the depth of the valve body large column suction bottom surface is X1Diameter phi d of small cylinder attraction end face of armature1The initial gap between the armature assembly and the valve body-coil assembly is X0The preload sealing force of the armature assembly is F0The proportional regulation range of the electromagnetic valve is x, the rigidity of the support spring of the armature component is k, and the parameter requirements meet the following constraint conditions:
4mm<d1<16mm
25X1<d1<D
compared with the prior art, the invention has the following beneficial effects:
(1) the invention can realize the high-precision continuous output control function of pressure and flow through the integral structure, and can effectively ensure the reliable work of the electric propulsion system;
(2) according to the invention, through the special step-type magnetism-dividing magnetic circuit layout and the combination of reasonable magnetic circuit parameters and mechanical parameter matching, the effect that the displacement output of the valve armature and the input current/voltage are in an approximate proportional relation is achieved, so that the continuous proportional linear relation between the output flow and the input current of the valve is realized, and the stepless regulation capacity of flow output can be realized;
(3) according to the invention, by adopting a double-support reed single-side flexible suspension support structure (namely a support spring assembly), nonlinear mechanical interference factors possibly existing in the motion process of the armature are eliminated, the effect of smooth output of output quantity is achieved, meanwhile, the output resolution of the valve is relatively improved by more than 5 times by combining a needle valve structure, and the phenomenon of needle valve self-locking and the phenomenon of overhigh starting point are thoroughly eliminated by reasonable half-angle control, so that the low-power-consumption design of a product is realized, and the reliability of continuous long-term operation of the product is improved;
(4) by adopting the disc spring back-to-back series loading structure, the invention reduces the stress level of a spring element and eliminates the risk of rapid reduction of loading caused by creep deformation of a non-metal material under the continuous action of a large load for a long time while realizing the confinement of the valve core assembly, and simultaneously combines a reasonable valve seat bottom surface inclined plane structure to realize the reliable sealing of the assembly and greatly reduce the failure probability of a latent leakage channel; in addition, compared with a binding off structure or a hot pressing structure adopted by a conventional valve, the structure has the advantages of simple realization form and lower cost.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
FIG. 1 is a schematic structural diagram of a proportional solenoid valve for precisely controlling a small flow rate according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of an armature assembly provided by an embodiment of the present invention;
FIG. 3 is a schematic illustration of a valve seat assembly provided by an embodiment of the present invention;
fig. 4 is a schematic structural view of an armature provided by an embodiment of the present invention;
FIG. 5 is a schematic structural diagram of an inner grommet according to an embodiment of the present invention;
FIG. 6 is a schematic structural diagram of an outer grommet according to an embodiment of the present invention;
FIG. 7 is a schematic structural diagram of a support spring provided in accordance with an embodiment of the present invention;
FIG. 8 is a schematic structural diagram of a pressure ring provided by an embodiment of the present invention;
FIG. 9 is a schematic view of a valve seat assembly coupled to an outlet fitting provided by an embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
Fig. 1 is a schematic structural diagram of a proportional solenoid valve for precisely controlling a minute flow rate according to an embodiment of the present invention. As shown in fig. 1, the proportional solenoid valve for precisely controlling a minute flow rate includes: an inlet connector 1, a valve body-coil assembly, an outer magnetizer 2, an armature assembly, a valve seat assembly, an outlet connector 3, a first casing 41 and a second casing 42; wherein the first housing 41 and the second housing 42 are connected; the valve body-coil assembly, the outer magnetizer 2 and the armature assembly are all arranged in the inner space formed by the first shell 41 and the second shell 42, and the valve body-coil assembly is connected with the armature assembly; the outer magnetizer 2 is sleeved outside the valve body-coil assembly; the inlet connector 1 is connected with the valve body-coil assembly; one end face of the outlet connector 3 is in compression joint with the armature component, and the side wall of the outlet connector 3 is connected with the second shell 42; the valve seat component is arranged in the outlet connector 3, and one end of the armature component is embedded in the valve seat component.
The central axis of the inlet joint 1, the central axis of the valve body-coil assembly, the central axis of the armature assembly, the central axis of the valve seat assembly, the central axis of the outlet joint 3, the central axis of the first shell 41 and the central axis of the second shell 42 are all coincident. The first housing 41 and the second housing 42 are of equal diameter.
As shown in fig. 1, the valve body-coil assembly includes a valve body 5, a coil 6, and a spring 7; wherein, the coil 6 is wound on the valve body 5; the spring 7 is sleeved on the valve body 5 and is in press connection with one end face of the coil 6.
Fig. 2 is a schematic structural diagram of an armature assembly provided by an embodiment of the present invention. As shown in fig. 2, the armature assembly includes an armature 8 and a support spring assembly; wherein, the armature 8 is sleeved with the supporting spring component.
The supporting spring assembly comprises a first supporting spring 91, a second supporting spring 92, an outer backing ring 93, an inner backing ring 94 and a pressing ring 95; the first supporting spring 91, the second supporting spring 92, the outer backing ring 93, the inner backing ring 94 and the pressing ring 95 are all sleeved on the armature 8; the outer backing ring 93 and the inner backing ring 94 are both arranged between the first supporting spring 91 and the second supporting spring 92, and the central lines of the outer backing ring 93, the inner backing ring 94, the first supporting spring 91 and the second supporting spring 92 are superposed; the pressing ring 95 is pressed against the outer surface of the second support spring 92.
As shown in fig. 2, the armature 8 is of a T-pin valve construction. The end cone angle alpha of the armature 8 is 20-45 deg..
FIG. 3 is a schematic diagram of a valve seat assembly provided by an embodiment of the present invention. As shown in fig. 3, the valve seat assembly includes an upper spool housing 110, a plurality of disc springs 120, a spool 130, and a lower spool housing 140; wherein the upper spool housing 110 is connected to the lower spool housing 140; the plurality of disc springs 120 and the valve core 130 are disposed in an inner space formed by the upper valve core housing 110 and the lower valve core housing 140, and the plurality of disc springs 120 are in pressure contact with the valve core 130.
As shown in fig. 1, the proportional solenoid valve for precisely controlling a minute flow rate further includes: a filter screen 10; wherein the sieve 10 is arranged in the inlet connection 1.
As shown in fig. 1, the proportional solenoid valve structurally comprises an inlet connector, a valve body-coil assembly, an outer magnetizer, an armature assembly, a valve seat assembly, an outlet connector, a first shell and a second shell, wherein the valve body-coil assembly is formed by directly winding an enameled wire on a metal valve body, the outer magnetizer is sleeved outside the valve body-coil assembly, and the inlet connector and the valve body assembly are connected by electron beam welding at a position a shown in the figure; the armature component is placed into the valve body-coil component according to the figure 1, then the outlet connector is sequentially placed into the valve body-coil component to press the right end face of the supporting spring component in the armature component, and the size X is adjusted by using an adjusting gasket on the left end face of the supporting spring component in the armature component0After the adjustment is passed, the outlet connector and the valve body-coil assembly are welded by electron beams at the position b shown in the figure, and in addition, the position in the valve body-coil assembly is weldedCharacteristic dimensions Φ D and X1Forming by machining, D and X0The 4-term inequality as used herein must be satisfied.
An armature assembly of a proportional solenoid valve is shown in fig. 2 and comprises an armature (shown in fig. 4), a first supporting spring, a second supporting spring, an inner backing ring (shown in fig. 5), an outer backing ring (shown in fig. 6) and a pressing ring (shown in fig. 8). Wherein the armature of fig. 4 is a T-pin valve configuration with characteristic dimensions Φ d1 and α; the inner backing ring, the outer backing ring and the pressing ring are all of concentric circle structures, wherein the inner backing ring and the outer backing ring need to be of equal thickness, the supporting springs are flaky 3-arm springs, and the gaps are 3 uniformly distributed vortex-shaped lines. The embodiment of the armature assembly is that after a first supporting spring, an inner backing ring and an outer backing ring are sequentially arranged along the A surface of the armature shown in figure 4, the first supporting spring and a pressing ring are sequentially arranged, and after the first supporting spring, the inner backing ring and the outer backing ring are clamped by a special clamping tool, the first supporting spring and the pressing ring are welded and fixed at the position c shown in figure 2 by adopting an electron beam. The first and second support springs are identical in structure as shown in fig. 7.
The valve seat assembly is shown in fig. 3 and comprises an upper valve core shell, 3 disc springs, a valve core and a lower valve core shell, wherein the characteristic dimension of the lower valve core shell is an angle b, the characteristic dimension of the valve core is an aperture phi d2, the valve core is made of PCTFE or polyimide resin with good dimensional stability, the specific implementation mode is that the valve core is placed in an inner cavity of the lower valve core shell, the 3 disc springs are sequentially placed in the upper valve core shell in a back-to-back mode, the outer circle of the valve core is used as a guide surface, the upper valve core shell is assembled, the disc springs compress the valve core, and finally the position d shown in fig. 3 is welded and fixed through electron beams.
As shown in FIG. 9, the valve seat assembly is rotated into the outlet fitting cavity and secured at position e as shown by electron beam welding.
The armature component is completely arranged outside the solenoid formed by the valve body-coil component, and the suction surface of the valve body-coil component (the diameter phi D of the large cylindrical suction bottom surface of the valve body and the depth X of the large cylindrical suction bottom surface1Characterization) and the attraction surface of the armature component (with the diameter phi d of the attraction end surface of the small cylinder of the armature)1Characterized) forming a stepped shunt magnetic circuit structure, as shown in fig. 1, the magnetic flux path of which comprises phi 1 andphi 2, the initial clearance between the armature assembly and the valve body-coil assembly is X0(unit: mm) defining a proportional solenoid valve with a proportional adjustment range of x (unit: mm) and an armature assembly preload seal force of F0(unit: N), the supporting spring stiffness of the armature assembly is k (unit: N/mm), these parameters require the following constraints to be satisfied:
4mm<d1<16mm
25X1<d1<D
when the given proportion of the electromagnetic valve exceeds a certain amplitude of current I0During operation, under the constraint of the design parameters of the magnetic circuit structure shown in fig. 1, the electromagnetic force generated by the excitation coil overcomes the spring reaction force and the medium force of the armature assembly, the armature assembly moves towards the attraction surface direction of the valve body and the coil, and the moving displacement h and the input current I are in an approximately linear relationship.
In order to improve the resolution and stability of the output quantity of the proportional solenoid valve, a needle valve type armature structure shown in fig. 2 is designed, a double-support reed single-side flexible suspension support is adopted, and in order to prevent the starting point of the proportional solenoid valve from being too high, the cone angle range of the needle valve is required to meet the requirements of 20 degrees < alpha <45 degrees in the embodiment
The valve seat assembly structure of the proportional solenoid valve of the embodiment is shown in figure 3 and comprises an upper valve core shell, a lower valve core shell, disk springs and a valve core, wherein the valve core is welded and connected at the position shown in figure 4 by taking the upper valve core shell and the lower valve core shell as a constraint boundary under the action of the pretightening force of a group of disk springs, the disk springs are connected in series in a back-to-back mode in the structure, the quantity of the disk springs is 3-5, the bottom surface inside the lower valve core shell is designed into an inclined plane, the value range of an angle b is required to be 7-15 degrees, the roughness is required to be Ra0.2-Ra0<d2<1mm。
The embodiment enables the output flow rate and the input current control signal of the proportional solenoid valve to be in an approximate linear relation, namely the continuous adjustment capacity of the output flow rate can be realized. If the system works in an open-loop mode, the on-orbit system can output any flow required by the electric propulsion system under the control action of a remote control command; if the electric propulsion system and the pressure sensor or the flow sensor form a closed-loop negative feedback control system, the high-precision continuous output control function of pressure and flow can be realized, and the reliable work of the electric propulsion system can be effectively ensured.
The proportional solenoid valve structure provided by the embodiment forms a closed-loop negative feedback control system with the pressure sensor or the flow sensor in the electric propulsion storage and supply system, so that the high-precision continuous output control function of pressure and flow can be realized, the control precision of +/-1% can be achieved, the system response time is quicker when the multi-mode working condition is switched, the stability and the robustness are higher, the utilization efficiency of a propellant is higher, the stiffness at the end of the service life is smaller, and the long-term reliable work of the electric propulsion system can be effectively ensured. In addition, the electric propulsion storage and supply system adopts a proportional control valve, so that the system can realize the functions of pressure control and flow regulation of the traditional electric propulsion system by using one component, even can realize the stop function of the system, and can improve the reliability of the system while greatly simplifying the structural layout of the system, reducing the dry weight and the volume of the system. Besides, the product can also be suitable for other fields with the fluid medium micro-flow precise control of the space electric propulsion system.
The above-described embodiments are merely preferred embodiments of the present invention, and general changes and substitutions by those skilled in the art within the technical scope of the present invention are included in the protection scope of the present invention.
Claims (9)
1. A proportional solenoid valve for precisely controlling micro flow is characterized by comprising: the magnetic valve comprises an inlet connector (1), a valve body-coil assembly, an outer magnetizer (2), an armature assembly, a valve seat assembly, an outlet connector (3), a first shell (41) and a second shell (42); wherein,
the first housing (41) and the second housing (42) are connected;
the valve body-coil assembly, the outer magnetizer (2) and the armature assembly are all arranged in an inner space formed by the first shell (41) and the second shell (42), and the valve body-coil assembly and the armature assembly are connected;
the outer magnetizer (2) is sleeved outside the valve body-coil assembly;
the inlet connector (1) is connected with the valve body-coil assembly;
one end face of the outlet connector (3) is in pressure connection with the armature component, and the side wall of the outlet connector (3) is connected with the second shell (42);
the valve seat assembly is arranged in the outlet connector (3), and one end of the armature assembly is embedded in the valve seat assembly;
the valve seat assembly comprises an upper valve core shell (110), a plurality of disc springs (120), a valve core (130) and a lower valve core shell (140); wherein,
the upper valve core shell (110) is connected with the lower valve core shell (140);
the disc springs (120) and the valve core (130) are arranged in an inner space formed by the upper valve core shell (110) and the lower valve core shell (140), and the disc springs (120) are in pressure joint with the valve core (130).
2. The proportional solenoid valve for minute flow rate precise control according to claim 1, wherein: the valve body-coil assembly comprises a valve body (5), a coil (6) and a spring (7); wherein,
the coil (6) is wound on the valve body (5);
the spring (7) is sleeved on the valve body (5) and is in press connection with one end face of the coil (6).
3. The proportional solenoid valve for minute flow rate precise control according to claim 2, wherein: the armature assembly comprises an armature (8) and a supporting spring assembly; wherein, the supporting spring component is sleeved on the armature (8).
4. The micro flow precisely controlled proportional solenoid valve of claim 3, wherein: the supporting spring assembly comprises a first supporting spring (91), a second supporting spring (92), an outer backing ring (93), an inner backing ring (94) and a pressing ring (95); wherein,
the first supporting spring (91), the second supporting spring (92), the outer backing ring (93), the inner backing ring (94) and the pressing ring (95) are all sleeved on the armature (8);
the outer backing ring (93) and the inner backing ring (94) are both arranged between the first support spring (91) and the second support spring (92), and the center lines of the outer backing ring (93), the inner backing ring (94), the first support spring (91) and the second support spring (92) are coincident;
and the pressing ring (95) is in compression joint with the outer surface of the second supporting spring (92).
5. The micro flow precisely controlled proportional solenoid valve of claim 3, wherein: the armature iron (8) is of a T-shaped needle valve structure.
6. The proportional solenoid valve for minute flow rate precise control according to claim 1, wherein: the diameter of the first housing (41) and the diameter of the second housing (42) are equal.
7. The proportional solenoid valve for precise control of minute flow according to claim 1, further comprising: a screen (10); wherein the sieve (10) is arranged in the inlet connection (1).
8. The micro flow precisely controlled proportional solenoid valve of claim 5, wherein: the end taper angle alpha of the armature (8) is 20-45 degrees.
9. The micro flow precisely controlled proportional solenoid valve of claim 3, wherein: the diameter of the large cylinder suction bottom surface of the valve body is phi D, and the depth of the large cylinder suction bottom surface of the valve body is X1Armature of a motor vehicleDiameter phi d of small cylinder suction end face1The initial gap between the armature assembly and the valve body-coil assembly is X0The preload sealing force of the armature assembly is F0The proportional regulating range of the proportional solenoid valve is x, the rigidity of the support spring of the armature component is k, and the parameter requirements meet the following constraint conditions:
4mm<d1<16mm
25X1<d1<D
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810216360.3A CN108413106B (en) | 2018-03-16 | 2018-03-16 | Proportional solenoid valve capable of accurately controlling micro flow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810216360.3A CN108413106B (en) | 2018-03-16 | 2018-03-16 | Proportional solenoid valve capable of accurately controlling micro flow |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108413106A CN108413106A (en) | 2018-08-17 |
| CN108413106B true CN108413106B (en) | 2019-12-20 |
Family
ID=63131593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810216360.3A Active CN108413106B (en) | 2018-03-16 | 2018-03-16 | Proportional solenoid valve capable of accurately controlling micro flow |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108413106B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110259954B (en) * | 2019-06-14 | 2020-12-01 | 西安航天动力研究所 | Integrated direct-acting electromagnetic valve |
| CN113090804B (en) * | 2021-03-30 | 2022-10-18 | 上海空间推进研究所 | High-reliability magnetic lock type self-locking valve device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003164052A (en) * | 2001-11-29 | 2003-06-06 | Mitsubishi Electric Corp | Submarine device and turn prevention mechanism of internal unit thereof |
| CN102116389A (en) * | 2009-12-30 | 2011-07-06 | 北京控制工程研究所 | Monopropellant thruster electromagnetic valve |
| EP2418408A1 (en) * | 2010-08-12 | 2012-02-15 | Honeywell Technologies Sarl | Regulation valve |
| CN102506219A (en) * | 2011-12-08 | 2012-06-20 | 北京控制工程研究所 | Permanent magnetic valve with characteristic of fast response |
| CN106763991A (en) * | 2016-11-22 | 2017-05-31 | 上海空间推进研究所 | A kind of minisize electromagnetic proportional directional valve |
-
2018
- 2018-03-16 CN CN201810216360.3A patent/CN108413106B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003164052A (en) * | 2001-11-29 | 2003-06-06 | Mitsubishi Electric Corp | Submarine device and turn prevention mechanism of internal unit thereof |
| CN102116389A (en) * | 2009-12-30 | 2011-07-06 | 北京控制工程研究所 | Monopropellant thruster electromagnetic valve |
| EP2418408A1 (en) * | 2010-08-12 | 2012-02-15 | Honeywell Technologies Sarl | Regulation valve |
| CN102506219A (en) * | 2011-12-08 | 2012-06-20 | 北京控制工程研究所 | Permanent magnetic valve with characteristic of fast response |
| CN106763991A (en) * | 2016-11-22 | 2017-05-31 | 上海空间推进研究所 | A kind of minisize electromagnetic proportional directional valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108413106A (en) | 2018-08-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5785298A (en) | Proportional solenoid-controlled fluid valve assembly | |
| CN108413106B (en) | Proportional solenoid valve capable of accurately controlling micro flow | |
| TWI691667B (en) | Fluid servo valve and fluid servo apparatus | |
| US8973894B2 (en) | Solenoid and solenoid valve | |
| CN101709806B (en) | Miniature self-locking electromagnetic valve | |
| CN109756149B (en) | Giant magnetostrictive actuator | |
| GB2140627A (en) | Electromagnet for valves | |
| US9620274B2 (en) | Proportional linear solenoid apparatus | |
| JP2018179205A (en) | Control valve and manufacturing method of the same | |
| JP6732329B2 (en) | Fluid servo valve and fluid servo device | |
| CN210949549U (en) | Axial hybrid air-floating main shaft | |
| CN108278371A (en) | A kind of spring-loaded permanent magnetism latching valve sealing auxiliary structure | |
| CN108700217A (en) | Motor-driven valve | |
| CN103282980A (en) | Oil immersed solenoid | |
| CN108488482B (en) | A doublestage solenoid valve for little flow high accuracy pressure control | |
| CN112503246A (en) | Micro-flow plane sealing giant magnetostrictive proportional valve | |
| CN110821958B (en) | Axial dynamic-static pressure air floatation spindle | |
| CN218294450U (en) | Cage type giant magnetostrictive proportional valve | |
| CN213900100U (en) | Micro-flow plane sealing giant magnetostrictive proportional valve | |
| CN108386566B (en) | Jet pipe electro-hydraulic servo valve adapting to variable temperature field | |
| KR102681193B1 (en) | Hydrogen supply and sut-off valve | |
| CN218413294U (en) | Piezoelectric throttle valve and electric propulsion flow control device for satellite | |
| CN218523053U (en) | Control solenoid valve and rocket engine | |
| CN112483721A (en) | Valve needle conical surface sealing type micro-flow giant magnetostrictive proportional valve | |
| CN218523107U (en) | Independent coil assembly for direct-acting axial-flow electromagnetic valve and electromagnetic valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |