CN113418047A - Proportional solenoid valve assembly and proportional solenoid valve with same - Google Patents
Proportional solenoid valve assembly and proportional solenoid valve with same Download PDFInfo
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- CN113418047A CN113418047A CN202110724785.7A CN202110724785A CN113418047A CN 113418047 A CN113418047 A CN 113418047A CN 202110724785 A CN202110724785 A CN 202110724785A CN 113418047 A CN113418047 A CN 113418047A
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 56
- 238000009434 installation Methods 0.000 claims abstract description 14
- 238000007789 sealing Methods 0.000 claims description 56
- 230000000670 limiting effect Effects 0.000 claims description 9
- 238000004804 winding Methods 0.000 claims description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 239000012530 fluid Substances 0.000 abstract description 7
- 230000006835 compression Effects 0.000 abstract 1
- 238000007906 compression Methods 0.000 abstract 1
- 238000006073 displacement reaction Methods 0.000 description 15
- 238000004519 manufacturing process Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 238000013461 design Methods 0.000 description 6
- 230000006978 adaptation Effects 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000003111 delayed effect Effects 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 230000005389 magnetism Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
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Classifications
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- 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
- F16K31/0644—One-way valve
- F16K31/0655—Lift valves
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/30—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages
- B05B1/3033—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head
- B05B1/304—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head the controlling element being a lift valve
- B05B1/3046—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head the controlling element being a lift valve the valve element, e.g. a needle, co-operating with a valve seat located downstream of the valve element and its actuating means, generally in the proximity of the outlet orifice
- B05B1/3053—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head the controlling element being a lift valve the valve element, e.g. a needle, co-operating with a valve seat located downstream of the valve element and its actuating means, generally in the proximity of the outlet orifice the actuating means being a solenoid
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- 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
-
- 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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
The invention relates to the technical field of electromagnetic valves, in particular to a proportional electromagnetic valve assembly and a proportional electromagnetic valve with the same, and the proportional electromagnetic valve assembly comprises a magnetic valve shell, an electric connector, an iron core, a support frame and a nozzle, wherein an electromagnetic coil and the iron core are installed in the magnetic valve shell through the support frame, a spring installation cavity, an air gap cavity and a hollow cavity are arranged in the iron core, an upper guide sleeve is fixedly installed between the lower end of the spring installation cavity and the upper end of the air gap cavity, an adjusting screw is screwed on the upper part of the spring installation cavity, a spring is arranged in the spring installation cavity, and an armature is arranged in the air gap cavity. In the invention, the linear proportional tank with the external opening can realize the linear proportional control of the current to the fluid flow; the spring force can be conveniently and rapidly adjusted through the adjusting screw, and the smoothness of the movement of the double-guide armature can be improved; the nozzle is matched with the armature, so that the fluid is sealed, and the problem that the service life of the rubber gasket on the armature is shortened due to excessive compression is solved.
Description
Technical Field
The invention relates to the technical field of electromagnetic valves, in particular to a proportional electromagnetic valve assembly and a proportional electromagnetic valve with the same.
Background
The electromagnetic valve is a valve element which controls the opening or closing of the valve by using current, the electromagnetic valve can be suitable for controlling various fluids including liquid, gas and the like, the electromagnetic valve can be matched with different circuits to realize expected control, the application is very wide in a modern industrial automatic control system, the existing electromagnetic valve controls the displacement of an armature by controlling the electromagnetic force generated by controlling the current so as to control the flow of the fluid, the change of the displacement of the armature can influence the change of the electromagnetic force due to no special structural design of an iron core, so that the current and the electromagnetic force cannot be in a linear proportional relation, better linear proportional control of the current and the flow cannot be realized, the currently designed electromagnetic valve has poor sealing performance, the service life of a sealing gasket is low, the sealing gasket is easy to damage, the phenomenon of clamping stagnation is easy to occur when the armature moves, and in addition, the initial force of the spring cannot be conveniently and quickly adjusted in the production process, the product consistency is poor, the structure is complex, and the processing and the assembling are troublesome, so that a proportional solenoid valve assembly and a proportional solenoid valve with the same are provided.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides a proportional solenoid valve assembly and a proportional solenoid valve with the same.
In order to achieve the purpose, the invention adopts the following technical scheme:
a proportion solenoid valve subassembly and have proportion solenoid valve of this subassembly, including the solenoid valve case, the electricity connects, the iron core, support frame and nozzle, a serial communication port, install solenoid between the support frame, solenoid's mid-mounting has the iron core, and the outside of iron core is laminated with the inner wall of support frame mutually, the outside of iron core is equipped with O shape circle and lower O shape circle from top to bottom in proper order, the outside of nozzle is equipped with nozzle O shape circle, the inside of iron core is equipped with spring installation cavity from top to bottom in proper order, air gap cavity and well cavity, and spring installation cavity and air gap cavity run through, install between the lower extreme of spring installation cavity and the upper end of air gap cavity and be fixed with upper guide sleeve, the upper portion spiral shell of spring installation cavity is closed has the adjusting screw, the spring is installed to the lower part of spring installation cavity, and the both ends roof pressure of spring is fixed between adjusting screw and upper guide sleeve, the well cavity is inserted and is equipped with armature, the upper portion of the armature extends into the interior of the air gap chamber and the armature is located directly above the nozzle.
Preferably, the electromagnetic coil comprises a winding frame and a copper winding, a support frame cover plate is fixedly arranged on the upper end face of the electromagnetic coil in a covering mode, and the upper end face of the winding frame is fixedly pressed with the lower end face of the support cover plate.
Preferably, a sealing ring groove is formed in the upper end face of the adjusting screw, and a sealing ring is clamped in the sealing ring groove.
Preferably, the motion of armature is two direction, and the guide way has been seted up at the middle part of armature up end, and the middle part of going up the guide way is inserted and is established the lower tip that is fixed with last guide sleeve, and the middle part cover of armature is equipped with down guide sleeve, and the sleeve mounting groove has been seted up to the downside of cavity inner wall, and lower guide sleeve and sleeve mounting groove looks adaptation, and the downside of sleeve mounting groove inner wall is equipped with spacing recess, and the lower part in the lower guide sleeve outside is equipped with down the guide sleeve boss, and the spacing recess of sleeve mounting groove inner wall and the lower guide sleeve boss looks adaptation in the guide sleeve outside down.
Preferably, the iron core is provided with a linear proportional slot, the linear proportional slot is positioned outside the iron core, and the linear proportional slot is positioned between the iron core and the winding framework;
the electromagnetic force resultant force fmag (x) of the armature in the axial direction is equal to the sum of the axial electromagnetic force F1(x) generated by the upper end surface of the air gap cavity and the component force of the side upper electromagnetic force F2(x) in the axial direction and the component force of the side lower electromagnetic force F3(x) in the axial direction generated by the linear proportional slot;
the formula is as follows:
Fmag(x)＝F1(x)+F2(x)*cosα+F3(x)*cosβ
wherein fmag (x) is the resultant electromagnetic force of the armature in the axial direction;
f1(x) is the electromagnetic force in the axial direction generated by the armature on the upper end face of the air gap cavity;
f2(x) is the side up electromagnetic force generated by the linear proportional tank;
f3(x) is the side-down electromagnetic force generated by the linear proportional tank;
alpha is the included angle between the direction of the electromagnetic force above the side generated by the linear proportional groove and the axial direction;
beta is the included angle between the direction of the electromagnetic force below the side generated by the linear proportional groove and the axial direction.
Preferably, the middle part of the lower end face of the armature is provided with a groove, a rubber gasket is vulcanized and bonded in the groove, the middle part of the upper end face of the nozzle is provided with a boss, the boss comprises a first protrusion and a second protrusion, the second protrusion is matched with the lower end face of the armature, and the first protrusion is matched with the rubber gasket in the armature groove.
Preferably, go up the uide sleeve from top to bottom and include first excircle diameter portion, second excircle diameter portion and third excircle diameter portion in proper order, the upper end of first excircle diameter portion and the lower terminal surface top pressure of spring contact, the air gap between the up end that the second excircle diameter portion was used for injecing armature and the inside roof of air gap cavity, and the distance of air gap equals the thickness of second excircle diameter portion, third excircle diameter portion is used for being connected fixedly with the last guide way that armature up end middle part was seted up.
Preferably, the inner diameter of the hollow cavity is 0.01mm-10mm larger than that of the air gap cavity.
Preferably, the outer side of the nozzle is provided with a dismounting groove.
The invention has the beneficial effects that:
in the invention, when the electromagnetic valve component and the electromagnetic valve with the same are used, the displacement of the armature can be linearly controlled by controlling the current, so that the flow cross section of a valve port is controlled, and further the flow of fluid is linearly controlled; due to the design of the linear proportional groove which is opened outwards, the armature displacement can be linearly controlled by controlling the current, and the linear proportional control of the current and the flow can be finally realized; the double-guide design of the armature can improve the moving smoothness of the armature, and avoid the phenomenon that the armature generates deviation and inclination when moving to cause the clamping stagnation or deadlocking of the armature; the nozzle passes through and armature cooperation, not only realized the sealed of convection cell, it is spacing to armature in axial direction in addition, limited certain air gap tolerance, avoided the rubber gasket on the armature to be compressed tightly excessively and lead to the problem that rubber gasket life-span reduces when guaranteeing the leakproofness, in the production assembling process, unqualified product can dismantle the nozzle fast through the groove of dismantling on the nozzle, repaiies the assembly or reprocesses internal part, reduces the disability rate and the cost of product.
Drawings
FIG. 1 is a schematic structural diagram of a proportional solenoid valve assembly and a proportional solenoid valve having the same according to the present invention;
FIG. 2 is an enlarged view of a portion A of FIG. 1 of a proportional solenoid valve assembly and a proportional solenoid valve having the same according to the present invention;
FIG. 3 is an enlarged view of B in FIG. 1 of a proportional solenoid valve assembly and a proportional solenoid valve having the same according to the present invention;
FIG. 4 is an enlarged view of C in FIG. 1 of a proportional solenoid valve assembly and a proportional solenoid valve having the same in accordance with the present invention;
FIG. 5 is a schematic structural diagram of a proportional solenoid valve assembly and a guide sleeve on the proportional solenoid valve having the same according to the present invention;
FIG. 6 is a graph of matching characteristics of energizing current and armature displacement for a proportional solenoid valve assembly and a proportional solenoid valve having the same according to the present invention;
FIG. 7 is a graph of fluid flow versus armature displacement matching characteristics for a proportional solenoid valve assembly and a proportional solenoid valve having the same in accordance with the present invention;
FIG. 8 is a schematic diagram of a proportional solenoid valve assembly and a proportional solenoid valve having the same according to the present invention;
FIG. 9 is a force analysis diagram of the electromagnetic force applied to the armature of a proportional solenoid valve assembly and a proportional solenoid valve having the same according to the present invention;
fig. 10 is a graph of electromagnetic force and spring force matching characteristics of a proportional solenoid valve assembly and a proportional solenoid valve having the same under different current levels according to the present invention.
In the figure: 1 electromagnetic valve shell, 2 electric connector, 3 iron core, 4 support frame, 5 electromagnetic coil, 501 bobbin, 502 copper winding, 6 support frame cover plate, 7 adjusting screw, 8 sealing ring, 9 spring, 10 linear proportion groove, 111 upper guide sleeve, 1111 first outer circle diameter part, 1112 second outer circle diameter part, 1113 third outer circle diameter part, 112 lower guide sleeve, 121 upper O-shaped ring, 122 lower O-shaped ring, 123 nozzle O-shaped ring, 13 armature, 14 nozzle, 151 sleeve mounting groove, 152 limiting groove, 16 lower guide sleeve boss, 17 rubber sheet, 18 boss, 181 first protrusion, 182 second protrusion, 191 pressure adjusting cavity, 192 air gap cavity, 193 hollow cavity and 20 dismounting groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-5, a proportional solenoid valve assembly and a proportional solenoid valve having the same, including a solenoid valve housing 1, an electrical connector 2, an iron core 3, support frames 4 and a nozzle 14, wherein a solenoid coil 5 is installed between the support frames 4, the solenoid coil 5 includes a bobbin 501 and a copper winding 2, and a support frame cover plate 6 is fixed on an upper end surface cover of the solenoid coil 5, and an upper end surface of the bobbin 501 is fixed with a lower end surface of the support cover plate 6 in a pressing manner;
the middle part of the electromagnetic coil 5 is provided with the iron core 3, the outer side of the iron core 3 is attached to the inner wall of the support frame 4, the outer side of the iron core 3 is sequentially provided with an upper O-shaped ring 121 and a lower O-shaped ring 122 from top to bottom, the outer side of the nozzle 14 is provided with a nozzle O-shaped ring 123, and the upper O-shaped ring 121, the lower O-shaped ring 122 and the nozzle O-shaped ring 123 can play a good role in sealing, so that the sealing performance of the electromagnetic valve can be better ensured;
the outer side of the nozzle 14 is provided with the dismounting groove 20, in the production and assembly process, unqualified products can quickly dismount the nozzle 14 through the dismounting groove 20 on the nozzle 14, and an operator can conveniently rebuild, assemble or repair parts inside the electromagnetic valve, so that the rejection rate and the cost of the products are reduced;
the iron core 3 is provided with the linear proportional groove 10, the linear proportional groove 10 is positioned outside the iron core 3, the linear proportional groove 10 is positioned between the iron core 3 and the winding framework 501, the linear proportional groove 10 arranged outside the iron core 3 is not only convenient for machining in the early stage and convenient for measurement, but also the structure of the linear proportional groove 10 can better keep the electromagnetic force in a stable state under the same control current and can not be influenced by the displacement of the armature 13, so that the electromagnetic force is only related to the current magnitude and is unrelated to other factors, an operator can uniformly adjust the electromagnetic force according to the current magnitude, the opening area of the valve is uniformly adjusted, and better linear proportional characteristic is ensured;
a spring mounting cavity 191, an air gap cavity 192 and a middle cavity 193 are sequentially arranged in the iron core 3 from top to bottom, the spring mounting cavity 191 penetrates through the air gap cavity 192, and an upper guide sleeve 111 is fixedly arranged between the lower end of the spring mounting cavity 191 and the upper end of the air gap cavity 192;
the upper part of the spring installation cavity 191 is screwed with an adjusting screw 7, the lower part of the spring installation cavity 192 is provided with a spring 9, two ends of the spring 9 are pressed and fixed between the adjusting screw 7 and the upper guide sleeve 111, the upper guide sleeve 111 is used for supporting the spring 9, the spring 9 is prevented from being directly contacted with the armature 13, magnetic lines of force are prevented from directly entering the armature 13 through the spring 9, and the electromagnetic force on the armature 13 is prevented from being reduced;
the upper guide sleeve 11 is of a stepped integrated structure, the upper guide sleeve 111 sequentially comprises a first outer circular diameter portion 1111, a second outer circular diameter portion 1112 and a third outer circular diameter portion 1113 from top to bottom, the upper end of the first outer circular diameter portion 1111 is in top pressure contact with the lower end face of the spring 9, the second outer circular diameter portion 1112 is used for limiting an air gap between the upper end face of the armature 13 and the top wall inside the air gap cavity 192, and the third outer circular diameter portion 1113 is used for being fixedly connected with an upper guide groove formed in the middle of the upper end face of the armature 13;
the second outside diameter part 1112 can maintain the minimum air gap between the iron core 3 and the armature 13, so that the armature 13 cannot be completely attracted by the iron core 3, and the phenomenon that the closing is delayed or even cannot be closed due to the fact that a larger attraction force still exists between the iron core 3 and the armature 13 if the air gap is small because residual magnetism exists in the iron core 3 when the electromagnetic valve is powered off is avoided;
the adjusting screw 7 is used for adjusting the initial sealing spring force of the spring 9, a sealing ring groove is formed in the upper end face of the adjusting screw 7, a sealing ring 8 is clamped in the sealing ring groove, and the sealing ring 8 can be used for sealing, so that the overall sealing performance of the electromagnetic valve is further improved;
an armature 13 is slidably inserted into the air gap cavity 192, the upper part of the armature 13 extends into the air gap cavity 192, the armature 13 is positioned right above the nozzle 14, the movement of the armature 13 is double-guide, an upper guide groove is formed in the middle of the upper end face of the armature 13, and the lower end part of the upper guide sleeve 111 is inserted and fixed in the middle of the upper guide groove, so that the movement stability of the armature 13 is ensured, and the armature 13 is prevented from being deviated from one side;
the middle part of the armature 13 is sleeved with a lower guide sleeve 112, the lower side of the inner wall of the hollow cavity 193 is provided with a sleeve mounting groove 151, the lower guide sleeve 112 is matched with the sleeve mounting groove 151, the lower side of the inner wall of the sleeve mounting groove 151 is provided with a limit groove 152, the lower part of the outer side of the lower guide sleeve 112 is provided with a lower guide sleeve boss 16, the limit groove 152 of the inner wall of the sleeve mounting groove 151 is matched with the lower guide sleeve boss 16 of the outer side of the lower guide sleeve 112, after the lower guide sleeve 112 is pressed to a set position, the boss 16 can enter the sleeve mounting groove 151, when the lower guide sleeve 112 is under the action of the armature 13, the interference force between the lower guide sleeve 112 and the sleeve mounting groove 151 is overcome to be separated from the iron core 3, the boss 16 can be clamped in the limit groove 152, and therefore the lower guide sleeve 112 can be better prevented from falling off;
the middle part of armature 13 lower extreme face is seted up flutedly, vulcanize in the recess and bond and have rubber gasket 17, the middle part of nozzle 14 up end is equipped with bellied platform 18, bellied platform 18 includes first arch 181 and second arch 182, and the bellied 182 of second and armature 13 lower extreme face adaptation, can play spacing effect, avoid rubber gasket 17 because of being impressed too deeply to reduce rubber gasket 17's life, guarantee that the initial air gap control between armature 13 and the iron core 3 is in certain tolerance range simultaneously, ensure stable initial electromagnetic force, improve the uniformity of solenoid valve, rubber gasket 17 adaptation in first arch 181 and the armature 13 recess, can play certain sealed effect.
Example one
When the novel electromagnetic valve component and the electromagnetic valve with the same are used, an operator sequentially splices and installs the components of the electromagnetic valve, wherein the iron core 3 and the support frame 4 are in interference press fit, the outer side of the iron core 3 is sequentially provided with the upper O-shaped ring 121 and the lower O-shaped ring 122 from top to bottom, the outer side of the nozzle 14 is provided with the nozzle O-shaped ring 123, and the upper O-shaped ring 121, the lower O-shaped ring 122 and the nozzle O-shaped ring 123 can play a good sealing role, so that the sealing performance of the electromagnetic valve is better improved;
the outer side of the nozzle 14 is provided with the dismounting groove 20, in the production and assembly process, unqualified products can quickly dismount the nozzle 14 through the dismounting groove 20 on the nozzle 14, and an operator can conveniently rebuild, assemble or repair parts inside the electromagnetic valve, so that the rejection rate and the cost of the products are reduced;
in the assembling process of the electromagnetic valve, an operator is used for adjusting the initial sealing spring force of the spring 9 through the adjusting screw 7, a sealing ring groove is formed in the upper end face of the adjusting screw 7, a sealing ring 8 is clamped in the sealing ring groove, and the sealing ring 8 can be used for sealing, so that the sealing performance of the electromagnetic valve is further guaranteed;
the iron core 3 is provided with the linear proportional groove 10 which is opened outwards, the linear proportional groove 10 is positioned outside the iron core 3, the linear proportional groove 10 is positioned between the iron core 3 and the winding framework 501, the linear proportional groove 10 which is opened outside the iron core 3 is not only convenient for the mechanical processing of the iron core 3 in the early stage and convenient for measurement, but also the structure of the linear proportional groove 10 can better keep the electromagnetic force in a stable state under the same control current without being influenced by the displacement of the armature 13, so that the electromagnetic force is only related to the current magnitude and is unrelated to other factors, an operator can uniformly adjust the electromagnetic force according to the current magnitude, the opening area of the valve is more uniformly adjusted, and the better linear proportional characteristic is ensured;
referring to fig. 9, the resultant force fmag (x) of the electromagnetic force of the armature 13 in the axial direction is equal to the sum of the axial electromagnetic force F1(x) generated by the upper end face of the air gap chamber 192 and the component force of the side upper electromagnetic force F2(x) in the axial direction and the component force of the side lower electromagnetic force F3(x) in the axial direction generated by the linear proportional groove 10;
the formula is as follows:
Fmag(x)＝F1(x)+F2(x)*cosα+F3(x)*cosβ
wherein fmag (x) is the resultant electromagnetic force of the armature 13 in the axial direction;
f1(x) is an axial electromagnetic force generated by the armature 13 on the upper end surface of the air gap cavity 192;
f2(x) is the side-up electromagnetic force generated by the linear proportional tank 10;
f3(x) is the side-down electromagnetic force generated by the linear proportional tank 10;
alpha is the included angle between the direction of the electromagnetic force above the side generated by the linear proportional groove 10 and the axial direction;
beta is the included angle between the direction of the electromagnetic force below the side generated by the linear proportional groove 10 and the axial direction;
assuming that the initial air gap of the armature 13 is x0, when the armature 13 moves for a certain displacement Δ x, because the axial air gap decreases, the magnetic induction intensity in the axial direction increases, F1(x0- Δ x) increases, and because the radial air gap does not increase, the magnetic induction intensity in the radial direction does not change, so that the linear proportional slot generates F2(x- Δ x) above the side and F3(x- Δ x) below the side, which remain unchanged, but because the armature 13 moves upwards for an angle of α and β, cos (α) and cos (β) decrease, so that the component forces of F2(x) and F3(x) in the axial direction decrease, and although the armature 13 has a certain upward displacement Δ x, which causes F1(x0- Δ x) to increase, the electromagnetic component forces of F2(x- Δ x) and F3(x- Δ x) in the axial direction decrease, so that the total electromagnetic force fmag in the axial direction (x) can also remain stable, it is ensured that under each current value, there is a stable electromagnetic force which is not affected by the displacement of the armature 13, as shown in fig. 10, so that by applying different current values, different electromagnetic forces can be obtained, and the displacement of the armature 13 can be better controlled, so as to achieve the purpose of linear proportional control of current and flow.
Example two
When the novel electromagnetic valve component and the electromagnetic valve with the same are used, an operator sequentially splices and installs the components of the electromagnetic valve, wherein the iron core 3 and the support frame 4 are in interference press fit, the outer side of the iron core 3 is sequentially provided with the upper O-shaped ring 121 and the lower O-shaped ring 122 from top to bottom, the outer side of the nozzle 14 is provided with the nozzle O-shaped ring 123, and the upper O-shaped ring 121, the lower O-shaped ring 122 and the nozzle O-shaped ring 123 can play a good sealing role, so that the sealing performance of the electromagnetic valve is better improved;
the outer side of the nozzle 14 is provided with the dismounting groove 20, in the production and assembly process, unqualified products can quickly dismount the nozzle 14 through the dismounting groove 20 on the nozzle 14, and an operator can conveniently rebuild, assemble or repair parts inside the electromagnetic valve, so that the rejection rate and the cost of the products are reduced;
an operator is used for adjusting the initial sealing spring force of the spring 9 through the adjusting screw 7, a sealing ring groove is formed in the upper end face of the adjusting screw 7, a sealing ring 8 is clamped in the sealing ring groove, and the sealing ring 8 can be used for sealing, so that the sealing performance of the electromagnetic valve is further improved;
an armature 13 is slidably inserted in the hollow cavity 193, the armature 13 is positioned right above the nozzle 14, and the movement of the armature 13 is double-guide, so that the movement stability of the armature 13 is ensured, and the armature 13 is prevented from being deviated from one side;
the upper guide sleeve 11 is of a stepped integrated structure, the upper guide sleeve 111 sequentially comprises a first outer circular diameter portion 1111, a second outer circular diameter portion 1112 and a third outer circular diameter portion 1113 from top to bottom, the upper end of the first outer circular diameter portion 1111 is in top pressure contact with the lower end face of the spring 9, the second outer circular diameter portion 1112 is used for limiting an air gap between the upper end face of the armature 13 and the top wall inside the air gap cavity 192, and the third outer circular diameter portion 1113 is used for being fixedly connected with an upper guide groove formed in the middle of the upper end face of the armature 13;
the second outside diameter part 1112 can control the minimum air gap between the iron core 3 and the armature 13, so that the armature 13 cannot be completely attracted by the iron core 3, and the phenomenon that the closing is delayed or even cannot be closed due to the fact that a larger attraction force still exists between the iron core 3 and the armature 13 because residual magnetism exists in the iron core 3 when the electromagnetic valve is powered off is avoided;
further, an upper guide groove formed in the upper end surface of the armature 13 is matched with the lower portion of the upper guide sleeve 111, the middle portion of the armature 13 is sleeved with the lower guide sleeve 112, a sleeve mounting groove 151 is formed in the lower side of the inner wall of the air gap cavity 192, the upper guide sleeve 111 is matched with the sleeve mounting groove 151, a limiting groove 152 is formed in the lower side of the inner wall of the sleeve mounting groove 151, a lower guide sleeve boss 16 is formed in the lower portion of the outer side of the lower guide sleeve 112, and the limiting groove 152 in the inner wall of the sleeve mounting groove 151 is matched with the lower guide sleeve boss 16 in the outer side of the lower guide sleeve 112;
when the lower guide sleeve 112 is pressed to a set position, the boss 16 enters the sleeve mounting groove 151, and when the lower guide sleeve 112 is acted by the armature 13 and is separated from the iron core 3 by overcoming the interference force, the boss 16 is clamped in the limiting groove 152, so that the lower guide sleeve 112 is better prevented from falling off.
EXAMPLE III
When the novel electromagnetic valve component and the electromagnetic valve with the same are used, an operator sequentially splices and installs the components of the electromagnetic valve, wherein the iron core 3 and the support frame 4 are in interference press fit, the outer side of the iron core 3 is sequentially provided with the upper O-shaped ring 121 and the lower O-shaped ring 122 from top to bottom, the outer side of the nozzle 14 is provided with the nozzle O-shaped ring 123, and the upper O-shaped ring 121, the lower O-shaped ring 122 and the nozzle O-shaped ring 123 can play a good sealing role, so that the sealing performance of the electromagnetic valve is better improved;
the outer side of the nozzle 14 is provided with the dismounting groove 20, in the production and assembly process, unqualified products can quickly dismount the nozzle 14 through the dismounting groove 20 on the nozzle 14, and an operator can conveniently rebuild, assemble or repair parts inside the electromagnetic valve, so that the rejection rate and the cost of the products are reduced;
an operator is used for adjusting the initial sealing spring force of the spring 9 through the adjusting screw 7, a sealing ring groove is formed in the upper end face of the adjusting screw 7, a sealing ring 8 is clamped in the sealing ring groove, and the sealing ring 8 can be used for sealing, so that the sealing performance of the electromagnetic valve is further improved;
when the electric connector 2 is not electrified, the armature 13 is contacted with the seat surface of the nozzle 14 under the action of the spring 9, the rubber gasket 17 is clamped and fixed in the groove of the lower end surface of the armature 13, and the second bulge 182 of the upper end surface of the nozzle 14 is matched with the lower end surface of the armature 13, so that the limiting effect can be achieved, and the problem that the service life of the rubber gasket 17 is shortened due to the fact that the rubber gasket 17 is pressed too deeply is avoided;
furthermore, the air gap between the armature 13 and the iron core 3 can be controlled within a certain tolerance range, the stability of the initial electromagnetic force is ensured, the consistency of the electromagnetic valve is improved, and the first protrusion 181 is matched with the rubber gasket 17 in the groove of the armature 13, so that a certain sealing effect can be achieved.
Example four
When the novel electromagnetic valve component and the electromagnetic valve with the same are used, an operator sequentially splices and installs the components of the electromagnetic valve, wherein the iron core 3 and the support frame 4 are in interference press fit, the outer side of the iron core 3 is sequentially provided with the upper O-shaped ring 121 and the lower O-shaped ring 122 from top to bottom, the outer side of the nozzle 14 is provided with the nozzle O-shaped ring 123, and the upper O-shaped ring 121, the lower O-shaped ring 122 and the nozzle O-shaped ring 123 can play a good sealing role, so that the sealing performance of the electromagnetic valve is better improved;
the outer side of the nozzle 14 is provided with the dismounting groove 20, in the production and assembly process, unqualified products can quickly dismount the nozzle 14 through the dismounting groove 20 on the nozzle 14, and an operator can conveniently rebuild, assemble or repair parts inside the electromagnetic valve, so that the rejection rate and the cost of the products are reduced;
an operator is used for adjusting the initial sealing spring force of the spring 9 through the adjusting screw 7, a sealing ring groove is formed in the upper end face of the adjusting screw 7, a sealing ring 8 is clamped in the sealing ring groove, and the sealing ring 8 can be used for sealing, so that the sealing performance of the electromagnetic valve is further improved;
when the electric connector 2 is electrified, the electromagnet forms a magnetic field, the iron core 3 generates upward suction to the armature 13, the armature 13 moves upward through the jacking spring 9, the nozzle opening of the nozzle 14 is opened, and when different currents are applied by an operator, the generated electromagnetic force is different in magnitude, so that the movement displacement of the armature 13 is linearly controlled, the nozzle area of the nozzle 14 is adjusted, and the purpose of controlling the flow through the currents is achieved.
When the electromagnetic valve component and the electromagnetic valve with the same are used, the displacement of the armature can be linearly controlled by controlling the current, so that the flow cross section of a valve port is controlled, and further the flow of fluid is linearly controlled, as shown in figures 6-8, the design of the electromagnetic valve can conveniently and rapidly realize the adjustment of spring force through an adjusting screw, the consistency of initial spring force is ensured, and the consistency of the whole product of the electromagnetic valve is improved; due to the design of the linear proportional groove which is opened outwards, the armature displacement can be linearly controlled by controlling the current, and the linear proportional control of the current and the flow can be finally realized; the double-guide design of the armature can improve the moving smoothness of the armature, and avoid the phenomenon that the armature generates deviation and inclination when moving to cause the clamping stagnation or deadlocking of the armature; the nozzle passes through and armature cooperation, not only realized the sealed of convection cell, it is spacing to armature in axial direction in addition, limited certain air gap tolerance, avoided the rubber gasket on the armature to be compressed tightly excessively and lead to the problem that rubber gasket life-span reduces when guaranteeing the leakproofness, in the production assembling process, unqualified product can dismantle the nozzle fast through the groove of dismantling on the nozzle, repaiies the assembly or reprocesses internal part, reduces the disability rate and the cost of product.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (9)
1. A proportional solenoid valve component and a proportional solenoid valve with the component comprise a solenoid valve shell (1), an electric connector (2), an iron core (3), a support frame (4) and a nozzle (14), and are characterized in that a solenoid coil (5) is installed between the support frames (4), the iron core (3) is installed in the middle of the solenoid coil (5), the outer side of the iron core (3) is attached to the inner wall of the support frame (4), an upper O-shaped ring (121) and a lower O-shaped ring (122) are sequentially arranged on the outer side of the iron core (3) from top to bottom, a nozzle O-shaped ring (123) is arranged on the outer side of the nozzle (14), a spring installation cavity (191), an air gap cavity (192) and a middle cavity (193) are sequentially arranged inside the iron core (3) from top to bottom, the spring installation cavity (191) is penetrated through the air gap cavity (192), an upper guide sleeve (111) is installed between the lower end of the spring installation cavity (191) and the upper end of the air gap cavity (192), an adjusting screw (7) is screwed on the upper portion of the spring mounting cavity (191), a spring (9) is mounted on the lower portion of the spring mounting cavity (192), two ends of the spring (9) are pressed and fixed between the adjusting screw (7) and the upper guide sleeve (111), an armature (13) is slidably inserted in the hollow cavity (193), the upper portion of the armature (13) extends to the inside of the air gap cavity (192), and the armature (13) is located right above the nozzle (14).
2. The proportional solenoid valve assembly and the proportional solenoid valve having the same as claimed in claim 1, wherein the solenoid coil (5) comprises a bobbin (501) and a copper winding (502), and a support frame cover plate (6) is fixed on an upper end surface cover of the solenoid coil (5), and an upper end surface of the bobbin (501) is pressed and fixed with a lower end surface of the support cover plate (6).
3. The proportional solenoid valve assembly and the proportional solenoid valve with the same according to claim 1, wherein the upper end surface of the adjusting screw (7) is provided with a sealing ring groove, and the sealing ring (8) is clamped in the sealing ring groove.
4. A proportional solenoid valve assembly and a proportional solenoid valve having the same as claimed in claim 1, it is characterized in that the motion of the armature (13) is double-guide, the middle part of the upper end surface of the armature (13) is provided with an upper guide groove, the middle part of the upper guide groove is inserted and fixed with the lower end part of an upper guide sleeve (111), the middle part of the armature (13) is sleeved with a lower guide sleeve (112), the lower side of the inner wall of the hollow cavity (193) is provided with a sleeve mounting groove (151), the lower guide sleeve (112) is matched with the sleeve mounting groove (151), the lower side of the inner wall of the sleeve mounting groove (151) is provided with a limiting groove (152), the lower part of the outer side of the lower guide sleeve (112) is provided with a lower guide sleeve boss (16), and a limiting groove (152) on the inner wall of the sleeve mounting groove (151) is matched with a lower guide sleeve boss (16) on the outer side of the lower guide sleeve (112).
5. A proportional solenoid valve assembly and a proportional solenoid valve having the same according to claim 1, characterized in that the iron core (3) is provided with a linear proportional slot (10), the linear proportional slot (10) is located outside the iron core (3), and the linear proportional slot (10) is located between the iron core (3) and the bobbin (501);
the electromagnetic force resultant force fmag (x) of the armature (13) in the axial direction is equal to the sum of the axial electromagnetic force F1(x) generated by the upper end face of the air gap cavity (192) and the component force of the side upper electromagnetic force F2(x) in the axial direction and the component force of the side lower electromagnetic force F3(x) in the axial direction;
the formula is as follows:
Fmag(x)＝F1(x)+F2(x)*cosα+F3(x)*cosβ
wherein fmag (x) is the resultant electromagnetic force of the armature (13) in the axial direction;
f1(x) is the electromagnetic force in the axial direction generated by the armature (13) on the upper end face of the air gap cavity (192);
f2(x) is the side-up electromagnetic force generated by the linear proportional tank (10);
f3(x) is a side-down electromagnetic force generated by the linear proportional tank (10);
alpha is the included angle between the direction of the electromagnetic force above the side generated by the linear proportional groove (10) and the axial direction;
beta is the included angle between the direction of the electromagnetic force below the side generated by the linear proportional groove (10) and the axial direction.
6. A proportional solenoid valve assembly and a proportional solenoid valve having the same as claimed in claim 1, wherein the armature (13) has a recess in the middle of its lower end surface, a rubber gasket (17) is vulcanized and bonded in the recess, a boss (18) is provided in the middle of its upper end surface of the nozzle (14), the boss (18) includes a first protrusion (181) and a second protrusion (182), the second protrusion (182) is fitted to the lower end surface of the armature (13), and the first protrusion (181) is fitted to the rubber gasket (17) in the recess of the armature (13).
7. A proportional solenoid valve assembly and a proportional solenoid valve having the same as claimed in claim 4, wherein the upper guide sleeve (111) comprises a first outer diameter portion (1111), a second outer diameter portion (1112) and a third outer diameter portion (1113) from top to bottom, the upper end of the first outer diameter portion (1111) is in top pressure contact with the lower end surface of the spring (9), the second outer diameter portion (1112) is used to define an air gap between the upper end surface of the armature (13) and the inner top wall of the air gap chamber (192), the distance of the air gap is equal to the thickness of the second outer diameter portion (1112), and the third outer diameter portion (1113) is used to be connected and fixed with the upper guide groove formed in the middle of the upper end surface of the armature (13).
8. A proportional solenoid valve assembly and a proportional solenoid valve having the same according to claim 1, wherein the inner diameter of the hollow chamber (193) is 0.01mm to 10mm larger than the inner diameter of the air gap chamber (192).
9. A proportional solenoid valve assembly and a proportional solenoid valve having the same according to claim 1, wherein the outside of the nozzle (14) is formed with a removal groove (20).
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| CN202110724785.7A CN113418047A (en) | 2021-06-29 | 2021-06-29 | Proportional solenoid valve assembly and proportional solenoid valve with same |
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|---|---|---|---|
| CN202110724785.7A CN113418047A (en) | 2021-06-29 | 2021-06-29 | Proportional solenoid valve assembly and proportional solenoid valve with same |
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| CN113418047A true CN113418047A (en) | 2021-09-21 |
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Cited By (1)
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|---|---|---|---|---|
| WO2024148804A1 (en) * | 2023-01-13 | 2024-07-18 | 英嘉动力科技无锡有限公司 | High-frequency switch valve |
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