CN106369205B - Power off the solenoid valve closed - Google Patents
Power off the solenoid valve closed Download PDFInfo
- Publication number
- CN106369205B CN106369205B CN201610576296.0A CN201610576296A CN106369205B CN 106369205 B CN106369205 B CN 106369205B CN 201610576296 A CN201610576296 A CN 201610576296A CN 106369205 B CN106369205 B CN 106369205B
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- China
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- armature
- solenoid valve
- pole core
- valve
- spring
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- 230000007246 mechanism Effects 0.000 claims abstract description 89
- 230000006835 compression Effects 0.000 claims abstract description 36
- 238000007906 compression Methods 0.000 claims abstract description 36
- 230000000694 effects Effects 0.000 claims abstract description 17
- 238000006073 displacement reaction Methods 0.000 claims abstract description 13
- 239000012530 fluid Substances 0.000 claims description 41
- 230000036316 preload Effects 0.000 claims description 12
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 9
- 238000010276 construction Methods 0.000 claims description 6
- 238000011084 recovery Methods 0.000 claims description 6
- 230000000717 retained effect Effects 0.000 claims description 4
- 230000037361 pathway Effects 0.000 claims description 2
- 239000000872 buffer Substances 0.000 abstract description 6
- 230000003139 buffering effect Effects 0.000 description 32
- 238000010586 diagram Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000005611 electricity Effects 0.000 description 5
- 238000005452 bending Methods 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000000875 corresponding effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000001151 other effect Effects 0.000 description 2
- 230000000750 progressive effect Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 239000007853 buffer solution Substances 0.000 description 1
- 239000013590 bulk material Substances 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000013017 mechanical damping Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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
- F16K31/0686—Braking, pressure equilibration, shock absorbing
- F16K31/0696—Shock absorbing, e.g. using a dash-pot
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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
- F16K31/0675—Electromagnet aspects, e.g. electric supply therefor
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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
- F16K31/0658—Armature and valve member being one single element
- F16K31/0662—Armature and valve member being one single element with a ball-shaped valve member
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/06—Electromagnets; Actuators including electromagnets
- H01F7/08—Electromagnets; Actuators including electromagnets with armatures
- H01F7/088—Electromagnets; Actuators including electromagnets with armatures provided with means for absorbing shocks
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/06—Electromagnets; Actuators including electromagnets
- H01F7/08—Electromagnets; Actuators including electromagnets with armatures
- H01F7/16—Rectilinearly-movable armatures
- H01F7/1607—Armatures entering the winding
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
The present invention relates to a kind of solenoid valves that power-off is closed, the solenoid valve is provided with valve pocket, pole core is fixedly placed in the valve pocket, and armature can be arranged in the valve pocket axially displacedly, wherein, effect has compression spring between pole core and armature, will be pressed onto valve seat with the coefficient closure member of armature.According to the present invention, valve is characterized in that, is configured with mechanism between pole core and armature hydraulically to buffer the displacement of armature.
Description
Technical field
The present invention relates to a kind of solenoid valves that power-off is closed, and with valve pocket, pole core (Polkern) is fixedly arranged
In the valve pocket, and the armature with valve top can be arranged in axially displacedly in the valve pocket, wherein in pole core and rank
Effect has helical spring between iron, and valve top is pressed onto valve seat.
Background technique
It is known from the state of the art the solenoid valve that beginning refers to type.Such solenoid valve is, for example, 2014 of Bosch company
TTNr. be 1267691803 power-off close solenoid valve MV09OS, be shown in FIG. 1.The solenoid valve 1 is held including electromagnetism
Row device comprising the magnet exciting coil (not shown) and pole core 2 that can be powered and be applied to can be in valve pocket 5,6 along axial direction
On the armature 3 of displacement.Valve pocket 5,6 may be designed as being divided into two-part valve pocket, with upper valve sleeve 5 and lower valve sleeve 6.Valve pocket 5 is fixed
Position is in valve cylinder 7.Filter 8 surrounds the entrance in valve pocket 6.Armature 3 also has closure member 9, in the disconnected of electromagnetic actuator
It is compressed against in electricity condition on valve seat 10.For this purpose, armature 3 is tightly retained in advance in valve pocket 5,6.It pre-tightens to apply, usually sets
It is equipped with compression spring 4, especially helical spring, is worked between pole core 2 and armature 3, or be tightly retained in magnetic pole in advance
Between iron core 2 and armature 3.Here, 4 one end of compression spring is supported at the pole core 2 being fixedly arranged, and the other end supports
At displaceable armature 3.For this purpose, armature 3 has recess, helical spring is substantially put into the recess and is drawn wherein
It leads.In a kind of embodiment of substitution, pole core 2 can also have recess, and helical spring is substantially put into the recess simultaneously
And be guided wherein-however, the embodiment is not shown in Figure 1.The part branch for extending over recess of compression spring 4
Support the end towards armature 3 that pole core 2 is extended at pole core 2 and from the end side towards pole core 2 of armature 3
Side, the mutual spacing in end side form so-called working gas gap in off-position.Working gas gap determines the maximum possible of armature 3
Displaced path, and it is thus determined that solenoid valve 1 stroke.When being powered to solenoid valve 1, between pole core 2 and armature 3
Air gap is closed in the following manner, that is, armature 3 moves upwards, until armature collides pole core 2.In the case where no electricity,
Move downward armature towards valve pocket 5,6 by compression spring 4, until closure member 9 reclines valve seat 10 and thus valve is closed.?
In the case where energization, magnetic force is usually gradually increased as working gas gap becomes smaller.The magnetic force of increase moves towards so that solenoid valve 1 is held
Continuous controllability deteriorates.In order to improve controllability, it is known that compression spring 4 is arranged to the elastic characteristic line for having progressive,
Or the additional disc spring (not shown) that such as setting has progressive elastic characteristic line.
By the prior art such as 10 2,010 040 631 A1 of known references DE.It is closed which illustrate a kind of power-off
Solenoid valve, with valve pocket, pole core is fixedly placed in the valve pocket, and the armature with valve top can be axially displaced
Ground is arranged in the valve pocket, wherein effect has helical spring between pole core and armature, and valve top is pressed onto valve seat
In.It provides herein, is connected with another helical spring in parallel with helical spring.
In novel, so-called 1-Box braking system, hydraulic device should be directly threaded together with the front panel of vehicle.
This means for all components in hydraulic device to noise and vibration ride comfort (Noise-Vibration-
Harshness, NVH) raising requirement because the noise for example occurred due to the solenoid valve of switching hydraulic device is by this
Fixed form is directly delivered in inner space.It is equally formed from steel when the armature that is mainly manufactured of steel is collided when being powered
When on pole core, powers off and for example may occur in which unlatching noise in the dump valve of closing.
Advantageously, reducing this noise or as complete as possible for the application of solenoid valve in such fixed solution
Avoid the noise.Thus it can get opening feature acceptable from the point of view of NVH angle.Furthermore it is advantageous that can not only weaken out
Noise is opened, and closure noise can be weakened.
Summary of the invention
Therefore, provided with a kind of solenoid valve that power-off is closed, with valve pocket, pole core is fixedly placed on the valve pocket
In, and armature can be arranged in axially displacedly in the valve pocket, wherein effect has pressure bullet between pole core and armature
Spring will be pressed onto valve seat with the coefficient closure member of armature.According to the present invention, valve is characterized in that, in pole core
Mechanism is configured between armature hydraulically to buffer the displacement of armature.
Therefore, present invention provide that, it can be realized the specific hydraulic cushion of carry out to armature displacement.Displacement is buffered in
This should not only be understood as the actual movement of armature, but also should be understood to the variation of movement, especially move for example due to backstop
Stop.Such as the deceleration of movement can be realized by this buffering.It can also realize that the component of movement reduces power and passes by this buffering
It collides with passing on another component.Herein in two directions to the buffering of displacement, i.e., it opens in valve and when valve closure, comes into force.
It provides according to the present invention, the mechanism used can be realized hydraulic buffering.Hydraulic buffering should be understood to it is explained above by
In the buffering that fluid is realized, or it is understood as the buffering of the effect reached by means of the hydraulic fluid stream due to generation realization.Especially
Mechanical organ is provided for realizing the mechanism of hydraulic buffering by it.The element is located in armature and magnetic pole iron according to the present invention
Between the heart.This is especially appreciated that into, element is disposed axially between the two components, wherein stick on one or two structure
It is clearly feasible at part.
The axially displaced of the armature for the valve closed is powered off to be further appreciated that into when being powered by means of electromagnetic force towards open position
The displacement in direction and when power is off by means of the return of compression spring.Helical spring is especially used as compression spring.Especially exist
When energization in the case where armature displacement, armature in the prior art collides on pole core with not braked usually.In addition, with
Working clearance spacing between pole core and armature reduce, the attraction to work becomes larger, that is, armature close to when pass through
Go through acceleration.The influence of this collision can be reduced by this hydraulic cushion to displacement.As influence, it should be particularly mentioned that be that can subtract
Less or the transmitting of structure sound in systems that avoids.The collision of armature to pole core is understood between the two components
Any kind of power and/or momentum transmitting.Obviously, fall into this range in addition, armature is via other components, such as via
The spring shim being located between two component armature and pole core, collides on pole core indirectly.Even if thus existing
Opening feature acceptable from the point of view of NVH angle can be achieved in the case where being connected directly between at front panel in hydraulic device.
In a kind of advantageous embodiment, solenoid valve is characterized in that, mechanism is configured to the shifting speed of control armature.
It is understood as in this regard, is achieved in this buffering for hydraulically buffering the mechanism of displacement of armature, that is, should
Mechanism can control shifting speed.The adjusting of corresponding parameter and/or influence can be interpreted as controlling.It especially provides, mechanism structure
Cause the shifting speed of reduction armature, that is, movement velocity.The collision of armature to pole core can be influenced by the control of speed.
Collision is advantageously buffered.Therefore desired noise situations can be realized.
In a kind of preferred design scheme, solenoid valve is characterized in that, mechanism is configured to hydraulic baffle (Blende).
It is understood as in this regard, mechanism is designed in this way, that is, by positioning of the mechanism in valve, which is used as liquid
Press baffle.Hydraulic baffle plate is the resistive portion of part.Thus resistive portion for example generates, that is, shrink to flow cross section great-jump-forward.Cause
It is blocked up before the baffle in the flowing direction for fluid, so the pressure before baffle is higher than the pressure after baffle.Volume flow
Amount is especially determined by the pressure difference generated herein.By the way that arrangement of mechanism to be provided to the liquid moved back and forth with armature at armature
Press baffle.The volume flow that can be influenced in valve is used and designed by baffle.Therefore, it is based on substantially incompressible fluid
The movement velocity of armature can be advantageously controlled by baffle, and additionally advantageously controls the momentum in collision in turn.
In an advantageous refinement, solenoid valve is characterized in that, mechanism has the fluid through-hole limited.
It is understood as in this regard, mechanism is designed in this way, that is, the fluid that mechanism can be realized at determining position runs through
Portion.This fluid through-Penetration portion for example may be designed as baffle and realize corresponding effect.It especially provides, baffle passes through in mechanism
The fluid passage at center generates, such as the hole centered on setting.The effect and intensity of buffering for example can the diameter of through hole adjust
Section, to realize desired buffering effect.The perforative design of fluid therefore should be consistent with that should realize which type of fluid volume flow.
Here, having considered not only the whole design of valve, and consider the desired motion feature of armature.
In a kind of feasible embodiment, solenoid valve is characterized in that, is constructed by means of the mechanism in mechanism and valve
The fluid connected pathways of restriction between set.
It is understood in this regard, it not only can be in armature motion by means of the fluid guidance of the access in mechanism
Shi Shixian hydraulic cushion, and hydraulic cushion can be advantageously limited by means of surrounding the fluid guidance of mechanism outside.In being similar to
The specific construction of the previously shown embodiment of the fluid passage of the heart, the fluid channel between mechanism and valve pocket can also have
Desired hydraulic cushion is realized sharply.Fluid channel correspondingly can be limited to this and therefore limit possible volume flow.It is depositing
In the case where armature slot, when fluid stream is influenced by armature slot, i.e., when covering armature slot when such as mechanism section,
There is buffering effect.The reinforcement for causing effect is completely covered in armature slot.In addition, channel is comparable between mechanism and valve pocket
Channel between armature and valve pocket is more narrowly implemented, to realize the substantially reinforcement and more significant buffering of effect.
Be advantageously improved in scheme in one kind, solenoid valve is characterized in that, mechanism be located in armature towards pole core
Endface.
It is understood as in this regard, mechanism is so positioned and assembled in the state of valve being not powered on, that is, mechanism is located in
The endface of armature and it is connected with armature.Therefore, the movement of armature also causes the movement of mechanism.Therefore it can pass through spring pad
The special arrangement of piece group for example provides the hydraulic baffle plate moved as armature is promoted.In valve be located at mechanism and pole core it
Between fluid be extruded in lifting motion and flow downwardly through mechanism.Mechanism is in this as baffle, and fluid is in lifting motion
Circulation or the baffle must be flowed through.Thus armature speed is lowered compared with the existing technology, and can generate more in switching
Small structure sound.When solenoid valve is without electricity, due to the elastic force of compression spring, armature and spring shim group are downwardly together towards closure
The direction of position moves.Here, spring shim group is also used as hydraulic baffle plate.Here, fluid is flowed back by spring shim group
Reduce in the region on spring shim group between armature and pole core and therefore closure momentum.
Advantageously it further provides that, solenoid valve is characterized in that, the end face towards pole core of mechanism and armature is contiguously pasted
It leans on.It is understood in this regard, mechanism sticks on the endface towards pole core of armature with direct contact.If machine
Structure sticks at the region in described armature step portion, it is clear that meets this contact.In a kind of advantageous design scheme, electricity
Magnet valve is characterized in that compression spring is at least partially disposed between mechanism and armature.
It being advantageously improved in scheme in one kind, solenoid valve is characterized in that, the preload of compression spring causes the deformation of mechanism,
Wherein, the collision of the armature of movement to pole core is buffered by means of the recovery of the deformation.
It has been elaborated that, mechanism is arranged for hydraulically buffering, wherein the displacement for hydraulically buffering armature causes to slow down
And therefore cause armature to the buffering of the collision of pole core.Additionally provide now, further buffering by mechanism come
Realize: as has already been discussed, the mechanism for hydraulically buffering is located between pole core and armature.It is present in system
In compression spring cause mechanism in the state of solenoid valve being not powered on it is special, limit deformation.If valve leads at this time
Electricity, the working gas gap closure between pole core and armature.Armature moves upwards herein, and the bending of spring leaf is with elastic force
Increase and increases.
Just shortly before lifting motion terminates, encircles curved spring shim in advance at its outer rim and collide pole core
On, and hit through this curved buffering of arch in advance as backstop spring, until reaching final position.Here, by means of spy
The recovery of deformation that is different, limiting is to buffer the collision of armature to pole core.This shock is advantageously reduced by the buffering
Influence.
Mechanism so constructs herein, that is, the mechanism can not only realize hydraulically buffering armature displacement, and can be mechanical
Ground buffers armature collision.Therefore, two kinds of buffering effects pass through a component, the i.e. described mechanism realizes, or with the component and other
The mode of component interaction is realized.Here, hydraulic causes the significant of NVH characteristic with the combination of effects of mechanical buffering
Improve.
In a kind of advantageous embodiment, solenoid valve is characterized in that, mechanism by least one spring shim, especially by
Spring shim group is formed.
It is understood in this regard, spring shim can be used to realize the effect explained above for mechanical damping.Bullet
The quantity of spring gasket can changeably be adjusted according to the size and material property of gasket and according to applicable cases and buffering to be achieved
It is whole.Here, occurring the illustrated effect for the recovery for deforming and deforming in spring shim.However, multiple due to using
Other effects, such as the reduction of friction effect and unevenness can occur between spring shim in gasket.Such as advantageously may be used
Using spring shim group, to improve these effects.Spring shim can also be made for stamping parts by on-gauge plate.Come as bulk material
Processing is also feasible.Solution can be realized cost-effectively as a result,.
In a kind of advantageous design scheme, solenoid valve is characterized in that, the end face of the direction pole core of armature is straight
There is the profile along axial structure, wherein the profile is particularly formed in the radially external branch that mechanism is used at armature on diameter
Support structureAnd the radially built-in cavity between mechanism and armature.
It is understood in this regard, the surface texture (such as step portion of armature) for the component that can be will be present is used as support
Point.It can radially single-stage or multistage be formed.Other than step, it is also contemplated that smooth transition part or mixing shape.This
Kind convex shoulder can for example be introduced by the processing method (such as turning and milling) of cutting.Armature step portion especially circumferentially implements
In the circumferential direction of armature.Step portion can have the notch of one or more distributions in the circumferential herein, such as move for fluid volume
Dynamic (Fluidvolumenverschiebung).
It is advantageously improved in scheme in one kind, solenoid valve is characterized in that, the interior diameter of support construction is greater than compression spring
Outer diameter.The desired arch that spring shim can be advantageously carried out by this structural condition is curved.Here, in compression spring to spring
Occur at position on gasket towards the deformation on the direction for the preload of compression spring worked.At support construction, that is, exist
The deformation of spring shim is prevented at supporting point.Therefore, in the perimeter of spring shim, that is, compared to support construction edge
In radial farther perimeter, realize the reversed deformation of spring shim, i.e., it is opposite with the preload of compression spring worked.
In a kind of preferred design scheme, solenoid valve is characterized in that, mechanism is substantially in undeformed state
Flat, and deform and cause the arch of mechanism curved.
It is understood in this regard, mechanism, i.e. especially spring shim has the plane of gasket in principle.Therefore, component
Basic configuration be plate-like and be substantially flat in its original uninstalled state.Thus it can advantageously employ
Very simple and cost-effective standard element.Required shape, the i.e. desired arch for buffering collision are curved only by means of in system
Compression spring preload generate.Therefore, the processing step of forming is not needed in the preparation stage yet.Encircle curved only by normally filling
It is generated with component.Therefore, it had not both needed not advantageously, component has the elastic construction of the forming limited, such as disc spring yet.
In a kind of advantageous embodiment, solenoid valve is characterized in that, makes the outer of mechanism by the preload of compression spring
Edge is curved in the opposite direction arch of the preload worked with compression spring, wherein by means of at least part and/or portion that the arch is curved
Collision of the recovery buffering armature divided to pole core.
It is understood as in this regard, component so determines size, characteristic and coordinated with each other, that is, following effect occur: pressure
Power spring, which has, to be pre-tightened and by mechanism (that is, particularly by spring shim, supporting point (such as armature step portion or remaining gas
Gap disk)) it is supported at armature.Make spring shim at the supporting point of compression spring by the preload of compression spring worked,
It is i.e. curved towards the direction of armature arch in the centre of spring shim.It obviously also should (such as spring shim reclines place by face or part face
Circular section) it is interpreted as supporting point.It is this bending by spring shim group in the state of valve being not powered at overall diameter from
Armature step portion or residual air dividing disc are promoted.That is, the outer rim of spring shim or spring shim group is using supporting point as starting point and pressure
The pressure direction of spring is curved towards the direction of pole core arch on the contrary.When valve is powered, exist between armature and pole core
Working gas gap due to armature movement be closed.However, armature does not hit magnetic with not braked as in the prior art
Pole iron core, but postponed by the resilient path for encircleing curved offer in advance due to spring shim, until armature reaches it most
Final position is set.Obviously, encircle curved at least part and/or partial reversed forming also causes buffering effect.Pass through spring shim and branch
The combination of support point forms buffer system, is mounted between pole core and armature, reduces the momentum of collision and therefore reduce
Structure sound in system.
In a kind of advantageous design scheme, valve is it is characterized in that, compression spring is located in the recess of pole core.Such as
As having been described above, armature has depression for accommodating and guide pressure spring.Positioning and guide pressure in the cavity
Spring.
In a kind of feasible design scheme, solenoid valve is characterized in that, mechanism is axially maintained by means of compression spring
In the endface of armature.It is understood in this regard, spring shim is also maintained at the position of restriction in the state being not powered on
In.It is pre-tightened for this purpose, compression spring has.The preload can be applied when assembling valve.Compression spring is also from there through spring shim
It is supported at armature.Other than directly supporting, indirect by means of other components (such as residual air dividing disc) is supported herein
It is also feasible.
Detailed description of the invention
It is shown in the attached drawings:
Fig. 1 shows the schematical cross-sectional view of the solenoid valve of the prior art, and
Fig. 2 shows a part of the cross-sectional view of the embodiment of the solenoid valve with the mechanism for hydraulically buffering, with
And
Fig. 3 shows a part of the oblique view of the armature with armature step portion of the embodiment according to solenoid valve, with
And
Fig. 4 schematically shows the working methods in the state of valve being not powered on and in the state of the energization of valve
Diagram, and
Fig. 5 shows the finite element of the working method in the state of valve being not powered on and in the state of the energization of valve
Diagram.
Specific embodiment
Fig. 1 shows the schematical cross-sectional view of the solenoid valve 1 of the prior art of the hydraulic device for vehicle.Existing
The description 1 of visible this solenoid valve in the explanation of technology.
Fig. 2 shows a part of the cross-sectional view of the embodiment of solenoid valve 1, which has the machine for hydraulic cushion
Structure 11.The spring shim 12 of special designing is used as mechanism 11.3 spring shims 12 have been used in the illustrated embodiment.?
This, spring shim 12, i.e. mechanism 11 are positioned directly at armature 3.Armature 3 has in radially external region in armature 3
Whole length on continuous armature slot 13.It is configured with 2 armature slots 13 in the embodiment as shown.Armature 3 also has
Armature step portion 14 in external region, mechanism 11 are bearing directly against at the armature step portion.Due to armature step portion 14,
Radially built-in cavity is formed between mechanism 11 and armature 3.Armature step portion 14 has recess in the region of armature slot 13.
Alternatively, armature slot 13 can also interrupt armature step portion 14.The compression spring 4 for being configured to helical spring is located in pole core 2
Recess in, compression spring 4 is substantially put into the recess and guides wherein.Compression spring 4 pre-tightens, and props up at one end
Support is supported at armature 3 at pole core 2, and in the other end by mechanism 11 and armature step portion 14.Thus by mechanism
11 remain axially retained at pole core 2.In addition, keeping mechanism 11 curved towards the direction of armature 3 arch by the preload of compression spring 4.
Fig. 3 shows one of the oblique view of armature 3 according to the embodiment of solenoid valve 1, with armature step portion 14
Point.
Here it is shown that towards the end face of pole core 2.Also show two armature slots 13.Armature step portion 14 is not being held in the mouth
In the position of metal trough 13 and therefore be implemented as only partly or partially around.Armature step portion 14 is as already described
For supporting mechanism 11 in the state of installation.
Fig. 4 shows the state S2 of the energization in the state S1 (diagram on the left side) of valve 1 being not powered on and in valve 1
The schematical diagram of working method in (diagram on the right).Mechanism 11 is also shown by 3 spring shims 12.Spring shim
It is adjusted in a particular manner, to realize hydraulic buffering.Its position at the armature of movement is especially referred to herein.Also
Show fluid passage 15 placed in the middle.Mechanism 11 is also formed in the fluid channel 16 of the outside between mechanism 11 and sleeve 5.The stream
Body channel 16 is more narrower than the conventional fluid channel 17 between armature 3 and sleeve 5 in the illustrated embodiment.However, working as machine
When structure 11 influences normal fluid stream by external fluid channel 17 or the fluid stream by armature slot 13, go out at this time
The existing desired hydraulic action worked as a buffer.When mechanism 11 partly covers armature slot, such case is had already appeared.Example
Such as, if the diameter of mechanism 11 is greater than the spacing at the radially most deep position of armature slot 13, such case is had already appeared at this time.
The left side diagrammatically shows the state S1 being not powered in Fig. 4, and the state being powered is illustrated in diagram on the right
S2.Here, illustrating fluid stream flows by means of arrow diagramming.In the valve shown, cavity is flowed completely in two states
Body 18 fills up.Due to armature 3 from state S1 move to state S2 and must will between armature 3 and pole core 2 existing stream
Body 18 squeezes out.When squeezing out, fluid 18 for example directs into the sky between mechanism 11 and armature 3 by intermediate fluid passage 15
In chamber.Fluid 18 directs into armature slot 13 from this.Fluid 18 reaches the fluid below the armature 3 of movement by armature slot 13
To carry out pressure compensation in chamber.There is hydraulic action by guiding fluid 18 in a manner of showing, such as based on hydraulic baffle
Vortex.The effect, which can be realized, buffers armature motion.There is also armature slot 13 can be realized fluid 18 it is free,
The outflow not blocked.Alternatively or as additionally, fluid 18 is also logical by external fluid in the shown embodiment
Road 16 guides, and thus can realize other effects or gain effect.Therefore, Fig. 4 is especially illustrated by means of mechanism 11 to armature 3
Movement carry out hydraulic cushion.Special damping characteristics can be set by the scheme of the restriction of mechanism 11.It is for example suitable to this
It is the size of the diameter of the diameter of determining fluid passage 15 placed in the middle or the diameter of outside and therefore external fluid channel 16.
Fig. 5 has been shown in the state S1 of solenoid valve 1 being not powered on and in the state S2 of the energization of solenoid valve 1
The finite element of working method illustrates.Working method is depicted herein, is especially depicted by means of mechanism 11 to armature 3 to magnetic pole iron
The collision of the heart 2 carries out mechanical buffering.The left side of line of symmetry shows the home position in the case where solenoid valve 1 is not powered on
S1.It can be seen that, due to existing in the S1_4 of position in the compression spring 4 shown in centre and the mechanism 11 in the S1_11 of position
The bending towards 2 direction of pole core occurred at overall diameter, the mechanism 11 for being configured to spring shim group pre-tighten.Pole core is two
It is in identical position in kind state S1 and S2, the referred to as S1_2 and S2_2 just to consistent reason.In addition, needle
The home position S1_3 of armature 3 is shown to the state S1 being not powered on, wherein show mechanism 11 and pole core S1_2 it
Between working gas gap.It is shown at armature 3 in the S2_3 of its final position on the right of line of symmetry for the state S1 being powered,
In, the working gas gap between mechanism 11 (it is in the S2_11 of position) and pole core 2 disappears.Compression spring 4 is similarly positioned in
In the S2_4 of final position.The desired additional buffering of the collision of armature 3 to pole core 2 is achieved in, that is, pass through mechanism 11
Postpone armature 3 before reaching its final position towards the curved sub-district of pole core 2.One of the kinergety of armature 3
Divide and is changed herein by encircleing the reinstatement of curved mechanism 11.
Claims (12)
1. powering off the solenoid valve (1) closed, which has valve pocket (5,6), and pole core (2) is fixedly placed on the valve pocket
In, and armature (3) can be arranged in axially displacedly in the valve pocket, wherein in the pole core (2) and the armature (3)
Between effect have compression spring (4), will be pressed into valve seat (10) with the armature (3) coefficient closure member (9),
It is characterized in that, mechanism (11) is configured between the pole core (2) and the armature (3) with armature described in hydraulic cushion
(3) displacement, wherein the mechanism (11) be hydraulic baffle plate and with center fluid passage (15), and wherein by means of
The mechanism (11) is configured with the fluid connected pathways (16) of restriction between the mechanism (11) and the valve pocket (5).
2. solenoid valve (1) according to claim 1, which is characterized in that the mechanism (11) is configured to control the armature
(3) shifting speed.
3. solenoid valve (1) according to any one of the preceding claims, which is characterized in that the mechanism (11) is located in institute
State the endface towards the pole core (2) of armature (3).
4. solenoid valve (1) according to claim 1 or 2, which is characterized in that the preload of the compression spring (4) causes institute
State the deformation of mechanism (11), wherein the pole core is arrived to the armature (3) of movement by means of the recovery of the deformation
(2) collision is buffered.
5. solenoid valve (1) according to claim 1 or 2, which is characterized in that the mechanism (11) is by least one spring pad
Piece is formed.
6. solenoid valve (1) according to claim 5, which is characterized in that the mechanism (11) is formed by spring shim group.
7. solenoid valve (1) according to claim 1 or 2, which is characterized in that the armature (3) towards the pole core
(2) end face being directed toward diametrically has the profile along axial structure.
8. solenoid valve (1) according to claim 7, which is characterized in that the profile is formed in the use at the armature (3)
In the mechanism (11) radially external support construction and formed it is radially built-in, in the mechanism (11) and described
Cavity between armature (3).
9. solenoid valve (1) according to claim 1 or 2, which is characterized in that the mechanism (11) is in undeformed state
It is substantially flat, and the deformation causes the arch of the mechanism (11) curved.
10. solenoid valve (1) according to claim 1 or 2, which is characterized in that due to the preload of the compression spring (4),
The outer rim of the mechanism (11) is curved in the opposite direction arch of the preload worked with the compression spring (4), wherein by means of
The crusherbull zone for encircleing curved at least part and/or partial recovery and the armature (3) being arrived with the pole core (2).
11. solenoid valve (1) according to claim 1 or 2, which is characterized in that the compression spring (4) is located in the magnetic
In the recess of pole iron core (2).
12. solenoid valve (1) according to claim 1 or 2, which is characterized in that the mechanism (11) is by means of the pressure
Spring (4) remains axially retained in the endface of the armature (3).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102015213840.2A DE102015213840A1 (en) | 2015-07-22 | 2015-07-22 | Normally closed solenoid valve |
| DE102015213840.2 | 2015-07-22 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106369205A CN106369205A (en) | 2017-02-01 |
| CN106369205B true CN106369205B (en) | 2019-06-11 |
Family
ID=57738813
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610576296.0A Active CN106369205B (en) | 2015-07-22 | 2016-07-20 | Power off the solenoid valve closed |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP6856328B2 (en) |
| CN (1) | CN106369205B (en) |
| DE (1) | DE102015213840A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102017207002A1 (en) | 2017-04-26 | 2018-10-31 | Robert Bosch Gmbh | Normally closed solenoid valve |
| FR3081607B1 (en) * | 2018-05-24 | 2020-10-09 | Valeo Systemes De Controle Moteur | ELECTROMAGNETIC DEVICE |
| CN109092582A (en) * | 2018-10-18 | 2018-12-28 | 广西卡迪亚科技有限公司 | A kind of liquid-gas two-phase flow body delicate metering spray solenoid valve |
| DE102020123249A1 (en) * | 2020-09-07 | 2022-03-10 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Plate armature damping device for a tilting armature valve, plate armature and tilting armature valve with a plate armature damping device |
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| JP4949586B2 (en) * | 1999-11-16 | 2012-06-13 | コンチネンタル・テベス・アーゲー・ウント・コンパニー・オーハーゲー | Solenoid valve |
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| DE102012200977A1 (en) * | 2012-01-24 | 2013-07-25 | Continental Teves Ag & Co. Ohg | Solenoid valve |
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- 2015-07-22 DE DE102015213840.2A patent/DE102015213840A1/en active Pending
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- 2016-07-21 JP JP2016143195A patent/JP6856328B2/en active Active
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| US2735047A (en) * | 1956-02-14 | Antivibration solenoid structure | ||
| EP0300407A1 (en) * | 1987-07-23 | 1989-01-25 | Mitsubishi Mining & Cement Co., Ltd. | An electromagnet |
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Also Published As
| Publication number | Publication date |
|---|---|
| JP2017062027A (en) | 2017-03-30 |
| CN106369205A (en) | 2017-02-01 |
| JP6856328B2 (en) | 2021-04-07 |
| DE102015213840A1 (en) | 2017-01-26 |
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