CN208169646U - Hydraulic valve - Google Patents

Abstract

The utility model relates to a kind of hydraulic valve (1), especially hydraulic drive valve, including electromagnetic component (3), electromagnetic component has magnetizable shell (4), it surrounds magnetic coil (7) on excircle (50) and at least one first end face (52), and electromagnetic component has the pole pipe (6) for being arranged in magnetic coil (7) inside, armature (10) is axially movably located inside armature chamber (56) inside pole pipe, and hydraulic valve includes hydraulic unit (2), it is with hydraulic piston (16), hydraulic piston is axial movably to be guided inside valve pocket (5) and connect at least one working joint (A) selectively at least one supply joint (P) and at least one fuel tank connector (T) using hydraulic piston.Here, armature (10) is for driving hydraulic piston (16).Valve pocket (5) is arranged along the extension body longitudinal axis (L) of pole pipe (6).Here, being integrated with fork-shaped plug (35) in coil case (8).

Description

Hydraulic valve

Technical field

The utility model relates to a kind of hydraulic valve, especially guiding hydraulic fluid devices, especially vehicle transmission Hydraulic controller electromechanical integration hydraulic drive valve.

Background technique

In order in the case where the long speed changer oil change interval phase, in extreme circumstances it is so-called reach the service life when still It is failure safe, the transmission valve must have high firmness.And it can be with big gap in the component to be moved Realize high firmness.But this leads to the burden of control precision.

A hydraulic valve as known to 10 2,011 053 023 A1 of document DE, it not only has high firmness, but also has There is high control precision.It not will lead to transmission valve in operation medium by dirt particle and kill the high firmness of realization, because Armature can apply axial force high in this way, so that armature can always pull.It is realized using the measure in multiple structures high Precision is controlled, it especially reduces the cross force between armature and pole pipe, and armature is movably located in inside pole pipe.

Feature in this known structure for reducing cross force is very narrow between armature and pole pipe there Movement clearance.In order to reach high magnetic force, separation layer as thin as possible is made every effort to, instead of for example covering or thick layer.It is this very Thin separation layer advantageously has the thickness of 10 μm (microns) to 60 μm.Thin separation layer for example can be by chemical or plating Separation layer is deposited to realize.Chemical nickel plating can be for example used as chemical technology.Herein it has been confirmed that 45 μm of thickness are advantageous , because high magnetic force is realized with acceptable cross force herein.It is had confirmed by current existing technique, is opened from 20 μm The thickness of beginning be enough it is reproducible.Such as it is different from plating nickel plating, there is no voltage to apply on the electrode in chemical technology. In chemical nickel plating, thickness is very uniform.

Pole piece cone is equipped in 10 2,011 053 023 A1 of document DE in order to process the transmission valve of proportionality.But Other different power/stroke change procedures also may be implemented by this pole piece cone.But expectation mostly is adjusted directly to simplify The power of line/stroke change procedure.

Utility model content

The purpose of this utility model is to propose a kind of hydraulic valve, and especially as hydraulic transmission valve, it will be as high as possible Firmness is combined with the structure type of cost advantages.

It is proposed that hydraulic valve, especially hydraulic drive valve, the hydraulic valve include an electromagnetic component, the electromagnetic part Part has magnetizable shell, which surrounds magnetic coil and described on excircle and at least one first end face Electromagnetic component has the pole pipe being arranged in inside magnetic coil, and armature is axially movably located inside armature chamber inside pole pipe, with And the hydraulic valve includes hydraulic unit, the hydraulic unit has hydraulic piston, and the hydraulic piston is axial movably in valve pocket The inside guiding and using hydraulic piston make at least one working joint selectively at least one supply joint and at least one A fuel tank connector connection.The armature is for driving hydraulic piston.The valve pocket is arranged along the longitudinal axis of the extension body of pole pipe. Here, being integrated with fork-shaped plug in coil case.Here, the pole pipe also includes pole and/or the pole piece of electromagnetic component.Here, institute The winding wire for stating magnetic coil is wound around the pin of fork-shaped plug, and the winding wire and pin are clamped using welding set And it welds.

In the hydraulic valve according to the utility model, the fork-shaped plug is integrated into coil case as the electric connection of magnetic coil The inside.This point can for example be realized by injection encapsulated.Here, the coil case is as magnet-wire coil support circuit card magnetic coil, And it is also used to for pole pipe being contained in the inside of coil case and thus pole pipe is also contained in the inside of magnetic coil.For this purpose, described Coil case suitably utilizes plastic injection technique to process.It is integrated into inside coil case by fork-shaped plug and guarantees fork-shaped plug and electricity The stable mechanical connection of magnet assembly.In addition, also can be realized simultaneously good electrical isolation by carrying out injection encapsulated with plastics, It is possible thereby to touch-safe be constructed without by plug cover fork-shaped plug important component.It in this way can be safe Ground fixation with connect fork-shaped plug.

According to advantageous design scheme, the winding wire of the magnetic coil can be wound around the pin of fork-shaped plug.? This, welding set can be inserted on the pin and winding wire of fork-shaped plug, then utilize the welding procedure example for squeezing and being suitble to As electric resistance welding connect welding set electrically and mechanically with pin and conducting wire.It obtains in this way secured and reliable Connection, it also can achieve long service life under severe service condition.

According to advantageous design scheme, the fork-shaped plug can have contact connectio body, and the contact connectio body has For force closure clamp the clamping jaw of corresponding contact.The body that connects is the contact component for steering current.The folder Pawl is used to connect with corresponding plug as a part for connecting body, and the contact component of corresponding plug is safely mechanical It is fixed on fork-shaped plug.

According to advantageous design scheme, the contact connectio body can be extend into inside coil case by fixed section, and It is equipped with clamping jaw on one end of fixed section and is equipped with pin on an opposite end, the pin is directed toward clamping jaw.The fixed section is made For the connection mechanically and electrically between clamping jaw and the pin of the winding wire for electrically connecting magnetic coil, it is used for fork-shaped plug Contact connectio body be fixed on inside coil case.For this purpose, the fixed section is suitably at least partly by the material of coil case one Injection encapsulated is played, body thus will be safely connected and is fixed on inside coil case.

According to advantageous design scheme, the hydraulic valve can have a preventing scrap lid, it covers pole disk by flank.It is logical Crossing preventing scrap lid can prevent, metal fragment may cause the short circuit between magnetic coil connector, such as due to during manufacturing Abrasion or since there may be metal fragments in operation for the movable component of hydraulic valve.For this purpose, the preventing scrap lid can be with It is inserted on coil case, or can also be formed by injection encapsulated coil case and fork-shaped plug as preventing scrap cover.In addition, described Preventing scrap lid is supported as the power of the plug when corresponding plug to be assembled on fork-shaped plug.

According to advantageous design scheme, the pole disk is desirably integrated into coil case.Pole disk the deviating from magnetic coil It is closed on the end face of hydraulic piston as the magnetic of magnetizable shell, the shell is on excircle and at least one end face Surround magnetic coil.The pole disk is for example furnished with the gap passed through for cable as magnetizable plate-like or annular object, Wherein, the gap for example can be hole.The pole disk especially can be constituted symmetrically, be returned for obtaining advantageous symmetrical magnetic Road.This pole disk is advantageously integrated into coil case, such as when the magnetic coil is constituted with coil case injection encapsulated, The pole disk by means of coil case plastic material injection encapsulated.Gap inside the disk of pole can suitably wear injection molding thoroughly, with Just the pole disk is filled up.The pole disk can with magnetic coil in an injection moulding process common injection encapsulated.In this way Axial arrangement space can advantageously be reduced.Thus it also can be realized particularly compact frame mode.In addition, saving independent use In the installation step of pole disk.Thus error condition can also be made to be transferred on non-key outer diameter, because the pole disk can have It is directed at magnetic coil and pole pipe sharply.

The pole disk can be conveniently by the material at least partly injection encapsulated of coil case.In this way significantly Simplify pole disk with its fixation relative to the orientation of coil case, because when disposable two structure members of injection encapsulated, they It is no longer possible to be mutually shifted.Thus also more simply sealing of the hold-in winding body relative to hydraulic fluid and/or moisture.

According to advantageous design scheme, the shell can be pressed on the disk of pole or weld with pole disk.The shell exists It shifts onto when assembly on the excircle of pole disk, and is for example fixed on the disk of pole by press-fit.In order to which additionally shell is fixed Shell can also be pressed in suitable hold-down segment on the disk of pole, hold-down segment wiped off using suitable tool by shell and/or Then bending is extruded on the disk of pole.It is achieved in and shell is pressed on the disk of pole purely axially, thus reducing may be when compressing Caused cross force.This compression is the Insurance riders of the fastening of shell and pole disk.It is alternatively or additionally it is contemplated that described outer Shell and pole disk weld.For example, the pole disk can connect in the axial direction on the shell, and in this way on outer side It is evenly welded with shell.

According to advantageous design scheme, realize that the axial force between armature and hydraulic piston passes using the pin independently constituted It passs, wherein the pin especially guides ground and is located inside valve pocket.The pin is advantageously especially made of non-magnetic material.Armature with The machinery that this power transmitting between hydraulic piston can be realized between armature bearing and hydraulic piston support, which breaks, to be coupled.Pass through This mode can, between two structure members only transmitting axial force.Thus it is advantageously reduced in armature and/or hydraulic work Cross force beyond the Great Wall, it is possible thereby to reduce the friction of motion of armature and/or hydraulic piston.By utilizing independent structure member, Such as sell, the power transmitting being isolated between armature and hydraulic piston can be realized the tolerance design of more favorable pole pipe and valve pocket, Because of the recessed sky portion that isolation armature moves in it in this way recess and hydraulic piston move in it.The pin can It to be constituted with being beneficially based on transverse plane of symmetry, thus tends to assemble, because need not consider the orientation of installation site.The pin Advantage diameter for example can be within the scope of 2.0mm to 2.5mm.

According to advantageous design scheme, the pin has the gap for reducing its longitudinal supporting face on its circumference, especially Its described gap circumferentially can circumferentially be configured to annular groove.It is also contemplated that other void shapes, especially between Disconnected or angular gap.Possible bearing surface of the pin inside valve pocket is reduced in this gap, and thereby assists in reduction pin Friction when being axially moved.Here, the length and depth in the gap can be according to error conditions and required pin guiding length It spends and is designed according to the stroke of armature and hydraulic piston.If the gap is advantageously made of annular groove, pin can be made It makes as simple turning component.In addition, the gap can be arranged and the longitudinal center pair about pin based on the axial direction on pin Ground is claimed to constitute, and thus unrelated with the installation site in hydraulic valve.The pin can be first with front end or rear end in assembling Insertion.

The pin can have the structure for reducing bearing surface advantageously at least one end of two end, such as The end face of rounding, especially top dome.The end face of rounding, such as top dome are easy to carry out power transmitting between armature and hydraulic piston, Because allowable error plays the role of less in this way when armature and hydraulic piston are mutually aligned.Furthermore thus, it is possible to Enough realize the power transmitting to rub less between armature and hydraulic piston.Top dome is placed in ratio on pin and is placed in armature and hydraulic piston End face on work in-process it is more advantageous because the pin is the structure member manufactured more simply.It is also contemplated that ring structure or Peg structure or similar structures.It, can be with the orientation nothing of pin if two ends of the pin especially have the end face of rounding Close ground rigging pilotage.

According to advantageous design scheme, hydraulic fluid reserve unit is equipped with inside the coil case, it is in armature chamber Connection status.Alternatively hydraulic fluid reserve unit can be equipped in housings.The storage that advantageously disposably can be initially full of Standby portion is for example in hydraulic connecting with armature chamber in production testing, and advantageously can prevent air from entering in hydraulic valve Face.The reserve unit can be sealed on the side away from armature chamber by closing cap as seal disc.It can also by reserve unit To prevent that armature chamber the inside may be entered due to the clast that abrasion generates.In addition, hydraulic fluid is moved to inside reserve unit A possibility that prevent additional undesirable damping.In this regard, the reserve unit can advantageously such design size, make by The 10% of the mobile for example, reserve unit volume of the volume that the stroke of pin between armature and hydraulic piston is realized.Pass through this side Formula, hydraulic fluid is only moved to inside reserve unit from armature chamber, and is sucked therefrom again.This reduces dirt and enters armature Inside room.

According to advantageous design scheme, the coil case can have the protrusion protruded into inside armature chamber, as being used for The backstop of armature.The protrusion can be arranged on the end face of hydraulic piston on armature thus, and protrude into armature Inside room.These protrusions can advantageously generate the backstop for armature, and thus the armature is not complete outwardly by its end Encounter and be tightly attached on coil case in face.Anti- bonding work can be advantageously carried out by reducing bearing surface of the armature on coil case With, thus make armature to coil case carry out backstop when will not keep being bonded on coil case, but again can easily with its It disengages.

According to advantageous design scheme, the armature can use spring and pre-tighten towards hydraulic unit, and in order to guide Spring and spring base is pressed into inside the recess of armature.The spring base can use deep-draw and be deformed by thin plate, and With circular radial protrusion as backstop and anti-adhesive discs.In this way, the spring base made of thin plate can be thin Wall and however also rigidly constitute.It can change to form buffing pad additionally by internal diameter, wherein the buffing pad can To open wide as much as possible, effectively go to damp for reaching.It can be reliably pressed into inside armature by the structure of elasticity.It is logical It crosses and sets insertion inclined-plane it is also ensured that the indentation without clast for radius change.The spring base is advantageously by non-magnetic material system At.

According to advantageous design scheme, the pole pipe can inside the notch for being arranged in its excircle, best V shape Using have radially around recessed gap as finely control profile.The recessed gap for example can be structured as circular annular groove.It is advantageous Groove depth is in the range of 0.1mm.The notch, which is advantageously used in, makes the magnetic field line of magnetic coil towards armature zone focusing in face To on the part of the armature of hydraulic piston.Additionally having towards armature may be implemented by the circular recessed gap in incision tract The focusing of benefit, the focusing may be implemented to obtain magnetic force and it is possible thereby in control/adjusting armature for finely controlling.This is logical The notch for crossing V-arrangement is especially advantageously facilitated.Thereby guarantee that the particularly effective operation characteristic of hydraulic piston.In the other strong of pole pipe It spends in identical situation, remaining wall thickness of the pole pipe in incision tract can extraly be reduced by the recessed gap.By this Mode can reduce focus in operation it is inside notch, for example may due to parasitic magnetic current generate magnetic field influence, and And improve the magnetic force in this region.As a result, with during manufacture and during hydraulic valve operation by caused by external force Mechanically deform is compared, and the control of electromagnetic component can be advantageously further improved in the case where the intensity of pole pipe keeps identical situation substantially Characteristic processed.

The pole pipe is preferably on the outer surface and in the first end face of magnetic coil and opposed with the first end face second The notch for having annular circular in longitudinal region between end face.In order to can advantageously make full use of to being generated by magnetic coil The notch is suitably arranged on the part of pole pipe by the effect that magnetic field is focused, and the part of the pole pipe is meeting rule In region when assembling surely between two end faces of magnetic coil.Thus, it is possible to most advantageously make full use of the effect simultaneously And it is advantageously used in control armature.

The notch is advantageously on its mutually opposed side with the first tapered profiles and based on being transversely to the machine direction Plane second tapered profiles opposed with the first tapered profiles, wherein the tapered profiles can be towards outer surface openly structure At.This pyramidal structure can advantageously focus the magnetic field generated by magnetic coil.In addition, it is possible thereby to obtaining in an advantageous manner To the mechanical stability of pole pipe, thus the hydraulic valve can advantageously control in wider mechanical and heat the range of stress. The gradient of the pyramidal structure can be constituted to different steepness, it is possible thereby to influence the feature of magnetic field line.

First and second tapered profiles can be connected conveniently by linking arm, wherein the wall thickness of the linking arm Less than the wall thickness of pole pipe.Wall thickness in connection arm region can especially be much smaller than the continuous wall thickness at the other positions of pole pipe.It is described Thus the wall thickness of linking arm generally can almost interrupt magnetic of the pole pipe in incision tract within the scope of 0.2 to 0.3mm Effect.It is advantageous it has been confirmed that linking arm as thin as possible focuses magnetic field, is achieved in the advantageous control of magnet assembly Property.

In addition, the notch can have at least one circular notch on the inner surface of pole pipe, wherein especially at least One notch can be arranged in the region of linking arm.By arranging at least one circular notch on pole pipe inner surface, institute It states notch for example and can be structured as circular annular groove, reduced with additional advantage in relieving platform according to the hydraulic valve of the utility model Magnetic cross force in rank region, for reducing magnetic hysteresis and thus reducing valve hysteresis.Notch in notch can be in linking arm In be laterally arranged in towards taper constitute side surface transition part on.It this side surface can be advantageously than opposed notch Side surface is steeper.

It is on the one hand to improve solenoid valve/valve by the further advantage that the scheme for the notch being arranged on pole pipe inner surface obtains Door resists the firmness of the power imported in single-piece work.In addition, linking arm can be unloaded mechanically at polar cap, because described Armature only directly moves in a part of linking arm.Thus reduce magnet since the linking arm of thin-walled is during the manufacture of polar cap The function effect of plastic deformation, such as due to the torsion of the wall body due to caused by Wall-Thickness Difference during the preprocessing and final processing in pole pipe Turn or elasticity exclusion bring deforms.

Another advantage is to improve influence/power firmness of the magnet/valve in operation relative to heat.The linking arm Mechanically unload.Thus thermal deformation and different thermal expansion bring magnetic functions due to sensitive, thin-walled linking arm are avoided It influences.

The circular recessed gap and at least one notch can advantageously be axially spaced to be arranged in pole pipe.It is this in axis Upward space isolation is it has been confirmed that focusing magnetic field and being advantageous particularly with parasitic magnetic current is reduced.Here, showing greatly The axial width of the recessed gap and/or notch is, for example, that the distance of 0.2mm to 0.3mm is advantageously combined and is arranged in outside pole pipe Recessed gap and the diametrically opposite notch in built in pole pipe be particularly advantageous.The radial depth of the notch can advantageously exist It is selected in 0.1mm range.It can specify that other sizes according to the structure of hydraulic valve.

According to advantageous design scheme, the pole pipe is integrally formed with valve pocket.According to the hydraulic valve of the utility model, institute Pole pipe and valve pocket is stated to be integrally formed with a structure member, this have the advantages that when hydraulic valve is run it is significant because can be with Reduce the adverse effect that armature caused by possible structure member is deformed and reduced thus moves in pole pipe and reduce by This caused magnetic hysteresis/valve hysteresis.Compared with pole pipe and valve pocket manufacture are independent structure member, by jointly, integrally Ground manufactures pole pipe and valve pocket and can be easier to realize the alignment of pole pipe axis and valve pocket axis, because of assembly inaccuracy effect It is small.Therefore, two axis are reliably placed in overlap condition during fabrication.Thereby guarantee that armature moved inside pole pipe and The expedients and guarantee that the advantageous power on from armature to hydraulic piston is transmitted that hydraulic piston the inside moves.

Also it can more simply realize armature to electromagnetic component magnetic coil in structure by pole pipe and the alignment of valve pocket Depth is protruded into more greatly in the inside, it is possible thereby to guarantee the advantageous and effective operation of hydraulic valve.Thus entire hydraulic valve is improved Functional mode.

Pole pipe and the advantageous alignment of valve pocket additionally aid the cross force for reducing magnetic on armature because by pole pipe with The integral structure of valve pocket realizes that armature motion is aligned as accurately as possible on the axis of magnetic coil with being also easier to.

The integral structure of pole pipe and valve pocket can also reduce the quantity of hydraulic valve arrangement part, and thus simplify assembly, this Help to reduce cost and occurs less mistake in assembly.The whole service of the hydraulic valve is also relatively reliable, because Can reduce the hidden danger of the deformation of structure member in operation and reduce thus bring in the running functional lesion of valve.One The structure member of body is fabricated to turning component and can realize in an advantageous manner.

The armature can be guided advantageously inside the recess of pole pipe.The armature can be advantageous in this way Ground is aligned and guides on the axis of magnetic coil, this is advantageous effective driving of hydraulic valve.By as turning component Advantageously manufacture pole pipe highly precisely can process recess with small error, and thereby guarantee that armature inside recess It is as few as possible frictionally to move, it is possible thereby to improve the response characteristic and operating parameter of hydraulic valve.

The hydraulic piston advantageously supportedly can be arranged in valve pocket using spring element on the end away from armature On.The armature couples with effectively connecting with hydraulic piston, especially mechanically couples, and the armature can especially pass through hydraulic work Plug mechanically manipulates, such as indirectly by the pin shaft (pin) being arranged between armature and hydraulic piston, or directly passes through The small mandril being arranged on piston.Reset force, institute can be generated in an advantageous manner by the spring element being supported on valve pocket It states reset force and facilitates hydraulic valve and run in a manner of Magnetic driving as spring mass oscillator.Thus it advantageously influences hydraulic The whole service of valve.

Detailed description of the invention

Further advantage is provided by following attached drawing description.The embodiments of the present invention are shown in the accompanying drawings.Attached drawing, explanation Contain a large amount of feature combination with claim.Professional suitably can also individually consider the feature and composition is intentional Other combinations of justice.

Herein illustratively：

Fig. 1 shows the longitudinal sectional drawing according to the hydraulic valve of the utility model embodiment in home position；

Fig. 2 shows longitudinal sectional drawing of the hydraulic valve according to another embodiment of the utility model in home position；

Fig. 3 shows the longitudinal sectional drawing of coil case and integrated fork-shaped plug according to the utility model embodiment；

Fig. 4 shows the hydraulic valve top view as viewed from fork-shaped plug side；

Fig. 5 shows the detailed view of the pin of fork-shaped plug；

Fig. 6 shows the top view of preventing scrap lid；With

Fig. 7 shows the partial longitudinal sectional view of the preventing scrap lid in Fig. 6.

Specific embodiment

Component same or like in the accompanying drawings is indicated with identical appended drawing reference.Attached drawing only shows example and should not manage Solution is to be limited by this.

Fig. 1 illustrates hydraulic valve 1 in home position, especially hydraulic drive valve with longitudinal profile.It herein relates to press Force regulating valve.

This hydraulic valve 1 for example uses in multiple clutch transmission device.Thus it is multiple partially construct it is similar The valve pocket 5 of the hydraulic unit 2 of hydraulic valve is installed to inside the control panel of multiple clutch transmission device.Valve pocket 5 is by turning component It constitutes.Transmission valve 1 the electromagnetic component 3 being connect respectively with hydraulic unit 2 stretched from control panel, and by hydraulic fluid around Stream.Each electromagnetic component 3 has magnetizable shell 4.

Hydraulic valve 1 shown in Fig. 1 includes electromagnetic component 3, and the electromagnetic component has magnetizable shell 4, this is outer Shell surrounds magnetic coil 7 on excircle 50 and at least one first end face 52, and with being arranged in inside magnetic coil 7 Pole pipe 6, armature 10 is axially movably located at 56 the inside of armature chamber wherein.Hydraulic valve 1 further includes hydraulic unit 2, described hydraulic Component has hydraulic piston 16, and the hydraulic piston is axial movably to be guided inside valve pocket 5 and utilize the hydraulic piston It connect at least one working joint A selectively with supply joint P and fuel tank connector T.Armature 10 is for driving hydraulic piston 16.Valve pocket 5 is arranged along the longitudinal axis L of the extension body of pole pipe 6.Magnetic coil 7 for example utilizes pressure with being lining into inside coil case 8 Cooperation is contained in 4 the inside of shell.The plastic material injection encapsulated magnetic coil 7 of coil case 8 can also alternatively be passed through.

As seeing Fig. 1, valve pocket 5 is integrally formed with pole pipe 6, thus hydraulic valve 1 can have less knot Structure component and it can simplify assembling process.Also can more simply it be turned in structure by pole pipe 6 and the alignment of valve pocket 5 Change armature 10 and protrude into depth in the big of the inside of magnetic coil 7 of electromagnetic component 3, it is possible thereby to guarantee the advantageous and high of hydraulic valve 1 The operation of effect ground.Thus the functional mode of entire hydraulic valve 1 is improved.

The expedients scheme of pole pipe 6 and 5 alignment of valve pocket additionally aids the cross force for reducing the magnetic on armature 10, because To be easier to realize that armature motion is right as accurately as possible on 7 axis of magnetic coil by the structure of pole pipe 6 and the one of valve pocket 5 It is quasi-.

In order to advantageously influence magnetic current, pole pipe 6 has the notch 9 of such as V-arrangement.

Armature 10 has axially movably positioned at 11 the inside of recess of the formation armature chamber 56 of pole pipe 6 by hole structure At central passage 12.This central passage 12 is expanded into the recessed of larger diameter by stage portion on the front end of armature 10 Empty portion 13, the recessed sky portion are equally made of hole.Anti- adhesive discs 14 are installed inside this bigger recessed sky portion 13, it has one Or multiple and longitudinal axis L arranged off-centre small throttle plate aperture 15, the throttle plate aperture connect armature chamber with central passage 12. When armature 10 completely disengages, on the valve pocket 5 for the magnetic conduction that anti-adhesive discs 14 prevent armature 10 to be bonded in hydraulic unit 2.

Hydraulic unit 2 has hydraulic piston 16, it is axially movably guided inside valve pocket 5.Hydraulic piston 16 utilizes bullet Spring element 17 is supportedly arranged on valve pocket 5 on the end 60 away from armature 10.It can be reacted in this hydraulic piston 16 The power for being configured to the spring element 17 of helical compression spring is mobile, and spring element is supported in the screening member 21 for being fixed on 5 the inside of valve pocket.For It guides and 17 screening member 21 of helical compression spring of feeling relieved is with spring guide way 22.According to the position working joint of hydraulic piston 16 A utilizes the circular annular groove 18 and longitudinal hole and transverse holes 20,19 and supply joint P or fuel tank connector T in hydraulic piston 16 Connection.

If hydraulic piston 16 is applied on magnetic coil 7 and due to lacking sufficiently large voltage positioned at according to the basic of Fig. 1 Position, then hydraulic fluid directs into fuel tank connector T discharge from working joint A.

Axial force transmission between armature 10 and hydraulic piston 16 realizes that it is arranged in valve pocket 5 with guiding using pin 23 The inside.What pin 23 can be realized between armature bearing and piston support disconnected couples.Here, being configured to circumferentially circular ring Slot 68, circular on pin circumference gap 24 can reduce bearing surface, it is possible thereby to reduce friction.Simultaneously advantageous by pin 23 transmitting axial forces, and also significantly improve error condition.In order to which friction free power is transmitted as far as possible, hydraulic piston 16 There is top dome with anti-adhesive discs 14.It in order to simplify the two structure members, can alternatively imagine, be constituted on pin 23 and reduce branch The structure of bearing surface, the preferably end face of rounding, especially top dome.

As being integrated with pole disk 28 in coil case 8 as giving Fig. 1, by pole disk for example by the modeling of coil case 8 Expect material at least partly injection encapsulated, or the gap 33 by wearing injection molding pole disk 28 thoroughly.It is achieved in smaller axial knot Conformational space and the assembly for simplifying hydraulic valve 1.In magnetic coil 7 on the end face 54 of hydraulic piston 16, pole disk 28 is used as can The magnetic of magnetized shell 4 is closed, and surrounds magnetic coil 7 on the external circumference 50 of shell and at least one end face 52.Pole disk 28 is used as can Magnetized, such as object of sheet or annular is furnished with the gap passed through for cable, and wherein these gaps for example can be hole.

Coil case 8 closes armature chamber 56 on one end of hydraulic valve 1.Here, protruding into the protrusion 25 of 56 the inside of armature chamber The backstop for being used for armature 10 is formed, and thus reduced bearing surface has anti-bonding effect.

It is preferred that hydraulic fluid reserve unit 26 be disposably initially full of, positioned at 8 the inside of coil case and armature chamber 56 connect It connects, and prevents air from entering 1 the inside of hydraulic valve.Hydraulic fluid, which is moved to a possibility that 26 the inside of reserve unit, also to be prevented from adding Undesirable buffering.The size of reserve unit 26 is designed in this way, so that being significantly less than storage by the volume movement for selling Cheng Shixian Standby portion's volume.Thus the dirt for entering 56 the inside of armature chamber is reduced.

Short circuit due to caused by foreign matter between unshowned fork-shaped plug 35 and pole disk 28 in order to prevent, hydraulic valve 1 Also there is preventing scrap lid 27, it covers pole disk 28 by flank.Fork-shaped plug 35 is equally partly moulded in 8 the inside of coil case, It is possible thereby to guarantee to be securely fixed fork-shaped plug 35 and also guarantee reliably to connect in turn.

In order to which preferably winding wire 37 is connected on the pin 36 of fork-shaped plug 35, around the pin of fork-shaped plug 35 36 wound around coil conducting wires 37.Then welding set 108 is inserted on the pin 36 of winding and is utilized and squeezed with electric resistance welding suitably Connect pin 36 and winding wire 37.

The shell 4 for protruding from pole disk 28 is additionally pressed on pole disk 28.Shell 4 shifts the outer circle of pole disk 28 onto assembly Zhou Shang, and be for example fixed on pole disk 28 by press-fit.It, can be in order to which additionally shell 4 is fixed on pole disk 28 It is pressed on shell 4 in suitable hold-down segment, hold-down segment is bitten using suitable tool by shell 4 and/or then bending squeezes On pole disk 28.Be achieved in the purely axial compression on pole disk 28 of shell 4, thus reduce may when compressing caused transverse direction Power.This compression is the Insurance riders that shell 4 and pole disk 28 are fixed.Alternatively or additionally it is contemplated that shell 4 and pole disk 28 weld It connects.For example, pole disk 28 can connect in the axial direction on the shell, and concordant with shell 4 on outer side in this way Ground welding.

Fig. 2 illustrates the second implementation of the hydraulic valve 1 in home position according to the utility model with longitudinal profile Example.The repeated description with structure member identical in Fig. 1 is saved, and is please referred in Fig. 1 in order to avoid unnecessary repetition Descriptions thereof.Pole pipe 6 is made of with valve pocket 5 two structure members in embodiment shown in figure 2.The valve of second embodiment Shorter end portion 46 of the set 5 with hydraulic sleeve 5, it protrudes into 6 the inside of pole pipe.

It is different from the first embodiment, working joint A is connect in the home position shown in supply joint P.For this purpose, holding The spring 40 for being contained in 41 the inside of recessed sky portion of pole pipe 6 pre-tightens armature 10 towards hydraulic unit 2.In the recess 32 of armature 10 Face pressure enters spring base 43, which guides spring 40, while being used as backstop and anti-adhesive discs by circular radial protrusion 44. Spring base 43 is advantageously employed deep-draw and is deformed by thin plate.Shorter 10 length of armature makes pin 23 and due to spring 40 Axial force transmission shorterly is constituted.

It is shown in FIG. 3 longitudinal according to the coil case 8 of the utility model embodiment and the part of integrated fork-shaped plug 35 Sectional view.Coil case 8 can be made of plastic injection piece, and the plastic injection piece is made up of injection encapsulated magnetic coil 7.? This, fork-shaped plug 35 equally can suitably be molded into the inside of coil case 8, thereby guarantee that be securely fixed fork-shaped plug 35 and It reliably connects unshowned magnetic coil 7 and thus reliably connects hydraulic valve 1.Find out in Fig. 3, there are two connect for tool How the fork-shaped plug 35 of body 100 is partly molded into 8 the inside of coil case.Here, connecting body 100 includes clamping jaw 102, it For being connected by unshowned corresponding plug, and it is located at injection encapsulated region exterior, and the contact connectio body Including fixed section 104, it is partly molded into 8 the inside of coil case, and the contact connectio body further includes pin 36, it is as magnetic Connector on the winding wire 37 of coil 7.The pole disk 28 equally encapsulated by the material injection of coil case 8 is shown.That places is breakage-proof It is that bits lid 27 prevents the importing voltage of not covered fork-shaped plug 35, especially adapter pin 36 partially due to conductive dirt Object and for example since the component part of hydraulic fluid for wearing generation during hydraulic valve 1 is run leads to short circuit.

Fig. 4 shows the top view of the hydraulic valve 1 as viewed from 35 side of fork-shaped plug.Fork-shaped plug is found out in the top view 35 connect body 100 with two, they are prominent by exposed clamping jaw 102.Furthermore pin 36 is shown, they are for connecing The winding wire 37 of logical magnetic coil 7.This connection is shown with Local map in Fig. 5.Fork-shaped plug 35 is integrated into 8 the inside of coil case And it is encapsulated partially by the material injection of coil case 8.Pole disk 28 is also partially integrated into 8 the inside of coil case.

Fig. 5 shows the detail view of the pin 36 of fork-shaped plug 35.The rod-shaped pin 36 found out in cross-section is soldered set 108 surround.Winding wire 37 is inserted between pin 36 and the inner wall of welding set 108 inside welding set 108.It is welded using squeezing Conductive connection is for example established in set 108 and/or welding by electric resistance welding between winding wire 37 and pin 36.This connection It is connection that is mechanically reliable and persistently keeping.

The top view of preventing scrap lid 27 is shown in FIG. 6.

Preventing scrap lid 27 is configured to plastic lid, it can be used as mechanical close and is inserted on coil case 8.Preventing scrap lid 27 has Different flanks 39, they are used to cover the free steering voltage of the winding wire 37 of fork-shaped plug 35 and magnetic coil 7 Part.Thus prevent between the component of each steering voltage of hydraulic valve 1 due to foreign matter conductive in hydraulic fluid, for example by Cause short circuit in the abrasion of metal parts.

Fig. 7 shows the partial longitudinal sectional view of preventing scrap lid 27.Preventing scrap lid 27 can be inserted in the form of metal coating lid The exposed guiding electricity that fork-shaped inserts 35 and magnetic coil 7 is covered onto coil case 8, and through the flank 39 of the preventing scrap lid The part of pressure, the flank have the structure of profile that is irregular, adapting to coil case 8 and fork-shaped plug 35.

The feature need not be combined forcibly, and can also be applied individually in hydraulic valve.

Claims (14)

1. hydraulic valve (1), including

Electromagnetic component (3), the electromagnetic component have magnetizable shell (4), and the shell is on excircle (50) and at least Magnetic coil (7) and the electromagnetic component are surrounded on one first end face (52) has the pole pipe for being arranged in magnetic coil (7) inside (6), armature (10) is axially movably located inside armature chamber (56) inside pole pipe,

Hydraulic unit (2), the hydraulic unit have hydraulic piston (16), and the hydraulic piston is axial movably inner in valve pocket (5) Face guiding and using the hydraulic piston make at least one working joint (A) selectively at least one supply joint (P) It is connected at least one fuel tank connector (T)

It is characterized in that, the armature (10) is used to drive hydraulic piston (16),

The valve pocket (5) is arranged along the longitudinal axis (L) of the extension body of pole pipe (6), and is integrated with fork-shaped in coil case (8) Plug (35), pin (36) of the winding wire (37) of the magnetic coil (7) around fork-shaped plug (35) is wound, and the line Circle conducting wire (37) is clamped and is welded using welding set (108) with pin (36).

2. hydraulic valve as described in claim 1, which is characterized in that the fork-shaped plug (35), which has, connects body (100), The body that connects has the clamping jaw (102) that corresponding contact is clamped for force closure.

3. hydraulic valve as claimed in claim 2, which is characterized in that the contact connectio body (100) is stretched by fixed section (104) Enter to inside coil case (8), and is equipped on one end of fixed section (104) clamping jaw (102) and is equipped on an opposite end and draw Foot (36), the pin are directed toward clamping jaw (102).

4. the hydraulic valve as described in one of above-mentioned claims 1 to 3, which is characterized in that the hydraulic valve has preventing scrap lid (27), the preventing scrap lid covers pole disk (28) by flank (39).

5. hydraulic valve as claimed in claim 4, which is characterized in that the pole disk (28) is integrated into coil case (8).

6. hydraulic valve as claimed in claim 4, which is characterized in that the shell (4) be pressed on pole disk (28) or with pole Disk (28) welding.

7. the hydraulic valve as described in one of claims 1 to 3, which is characterized in that held in the mouth using pin (23) realization independently constituted Axial force transmission between iron (10) and hydraulic piston (16), pin (23) guiding ground are located inside valve pocket (5), the pin (23) it constitutes non-magneticly.

8. hydraulic valve as claimed in claim 7, which is characterized in that the pin (23) has vertical for reducing it on its circumference To the gap (24) of bearing surface, the gap (24) is circumferentially circumferentially configured to annular groove (68).

9. the hydraulic valve as described in claim one of 1 to 3, which is characterized in that be equipped with inside the coil case (8) hydraulic Fluid reserve unit (26), the hydraulic fluid reserve unit and armature chamber (56) are in connection status.

10. the hydraulic valve as described in claim one of 1 to 3, which is characterized in that the coil case (8), which has, puts in armature Protrusion (25) inside room (56) is as the backstop for being used for armature (10).

11. the hydraulic valve as described in claim one of 1 to 3, which is characterized in that the armature (10) utilizes spring (40) court It is pre-tightened to hydraulic unit (2), and in order to guide spring (40), the recess (32) that spring base (43) is pressed into armature (10) is inner Face, the spring base (43) are deformed by thin plate using deep-draw, and have circular radial protrusion (44) as backstop and Anti- adhesive discs.

12. the hydraulic valve as described in claim one of 1 to 3, which is characterized in that the pole pipe (6) is being arranged in its outer circle Have inside the notch (9) of V-arrangement in week radially around recessed gap (29) as precise controlling profile.

13. the hydraulic valve as described in claim one of 1 to 3, which is characterized in that the pole pipe (6) and valve pocket (5) are integrally It constitutes.

14. hydraulic valve as described in claim 1, which is characterized in that the hydraulic valve is hydraulic drive valve.