EP2726350A1 - Électrovanne et dispositif électrovanne - Google Patents

Électrovanne et dispositif électrovanne

Info

Publication number
EP2726350A1
EP2726350A1 EP12728204.4A EP12728204A EP2726350A1 EP 2726350 A1 EP2726350 A1 EP 2726350A1 EP 12728204 A EP12728204 A EP 12728204A EP 2726350 A1 EP2726350 A1 EP 2726350A1
Authority
EP
European Patent Office
Prior art keywords
valve
solenoid valve
housing
magnet assembly
receptacle
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP12728204.4A
Other languages
German (de)
English (en)
Inventor
Harald Speer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP2726350A1 publication Critical patent/EP2726350A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
    • B60T8/34—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition
    • B60T8/36—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition including a pilot valve responding to an electromagnetic force
    • B60T8/3615—Electromagnetic valves specially adapted for anti-lock brake and traction control systems
    • B60T8/363—Electromagnetic valves specially adapted for anti-lock brake and traction control systems in hydraulic systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
    • B60T8/34—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition
    • B60T8/36—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition including a pilot valve responding to an electromagnetic force
    • 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

Definitions

  • SOLENOID VALVE AND SOLENOID VALVE ASSEMBLY The invention relates to a solenoid valve with a magnet assembly and a
  • Valve housing wherein the magnet assembly surrounds the valve housing at least partially and wherein in the valve housing a magnet arm generated by a magnetic force generated by the magnetic assembly axially displaceable armature is arranged with a closing element and the closing element in a closed position of the solenoid valve sealingly cooperates with a valve seat.
  • the invention relates to a solenoid valve arrangement.
  • Solenoid valves of the type mentioned in the introduction are known from the prior art. They are used for example in anti-lock braking systems (ABS), electronic stability program systems (ESP) and / or traction control systems (ASR).
  • ABS anti-lock braking systems
  • ESP electronic stability program systems
  • ASR traction control systems
  • Such solenoid valves have a magnet assembly and a valve housing. Through the interaction of a magnet housing arranged to be displaceable in the valve housing or a closing element provided thereon and a valve seat assigned to the valve housing, the volume flow of a fluid through the solenoid valve can be regulated.
  • the displacement of the magnet armature together with the closing element is effected by the magnet assembly having at least one coil winding, which is formed separately from the valve housing and integrated in a control unit that drives the magnet assembly.
  • the magnet assembly and the valve housing are formed such that after assembly of the solenoid valve, the magnet assembly engages around the valve body in the manner of a separable connector, i.
  • the magnet assembly is placed on the valve body or removable from this.
  • Coil winding generates a force acting on the armature magnetic force and the magnet armature together with the closing element displaced axially in the valve housing. This can cause the closing element a closed position or an open position of the solenoid valve. Eventually, any intermediate positions are adjustable.
  • a solenoid valve is known, whose valve housing, together with the components serving for the fluid guide, is partially caulked in a recess of a hydraulic housing, wherein the magnet assembly has an area of the valve housing protruding from the hydraulic housing.
  • the invention provides that for integrating the magnet assembly into the valve housing, the valve housing has a receptacle for the magnet assembly, wherein the valve housing surrounds the magnet assembly at least partially in the circumferential direction.
  • the magnet assembly and the valve housing together with the components serving for the fluid guide form an assembly, so they can be installed together.
  • the arranged in the receptacle magnet assembly is therefore associated with the valve housing and not a control device with regard to the construction of the solenoid valve. This integration of the magnetic assembly in the valve housing can be possible air gaps between the
  • Solenoid valve acts at a given energization of the coil winding, a greater magnetic force on the armature than is the case with a conventional solenoid valve.
  • the receptacle is formed in the valve housing such that the magnet assembly arranged in the receptacle engages around the valve housing in the circumferential direction and at the same time is encompassed by the valve housing in the circumferential direction.
  • the magnet assembly and the receptacle are substantially conformed to form, so that in particular at least partially there is a full-surface touch contact between the magnet assembly and an inner surface of the receptacle.
  • the valve housing has a hood-like capsule and a receptacle which forms the receptacle or with a forming receiving element, wherein the magnet assembly at least partially surrounds the capsule and / or the receptacle element.
  • the capsule in which preferably the magnet armature is guided axially, and the receiving element together so far form the receptacle for the magnet assembly.
  • each of the receiving element, the magnetic assembly and the magnetic assembly completely surround the capsule in the circumferential direction.
  • the valve housing has a sleeve, which is closed at one end by a pole core, and a receptacle forming or with training receiving element, wherein the magnet assembly, the sleeve and / or the pole core and / or the Receiving element surrounds the magnet assembly at least partially.
  • the sleeve and the pole core define a space in which the magnet armature is preferably guided axially, and so far together with the receiving element form the receptacle for the magnet assembly.
  • each of the receiving element, the magnetic assembly and the magnetic assembly completely surround the sleeve and the pole core in the circumferential direction.
  • the pole core is pressed into the sleeve and welded to the sleeve.
  • the receiving element an inner Hohlzy- cylinder, an outer hollow cylinder and the hollow cylinder radially connecting
  • the inner hollow cylinder is encompassed by the capsule or the sleeve at least partially.
  • the inner hollow cylinder is arranged in the outer hollow cylinder, preferably coaxially thereto.
  • the hollow cylinders are preferably connected to each other at their one end by the ring element in the radial direction.
  • the hollow cylinder and the ring element are preferably in one piece, i. not composed of separately formed parts, and / or formed of the same material.
  • the receiving element of magnetizable material in particular a metal or a metal alloy
  • the inner hollow cylinder is at least partially, in particular completely, arranged in the capsule or sleeve, i. it is encompassed by the capsule or the sleeve in the circumferential direction at least partially or completely, and is preferably welded to this.
  • the magnetic flux generated by the magnet assembly is thus guided by the receiving element from outside the capsule or sleeve into the interior of the capsule or sleeve, where the magnet armature or the pole core is arranged. There are no or significantly smaller air gaps, so that a more efficient use of the magnetic field generated by the magnetic assembly is achieved.
  • the receptacle is formed between the outer hollow cylinder and the capsule or the sleeve with pole core.
  • the receptacle is therefore of hollow cylindrical shape and is limited in the radial direction inside nenuses nurse by the capsule or the sleeve with Polkern and the outer circumference side by the capsule or sleeve with pole core radially spaced outer hollow cylinder.
  • the receptacle is arranged on the one hand by the ring element and on the other hand by a cover disc arranged between the outer hollow cylinder and the capsule or the pole core, in particular pressed-in. is bounded.
  • the cover is preferably annular and connects the outer hollow cylinder in the radial direction with the capsule or the pole core.
  • the invention provides that the solenoid valve is fixed by means of a retaining element in the recess.
  • the solenoid valve is preferably designed in accordance with the above statements.
  • the holding element fixes the valve housing together with the components which serve to guide the fluid and the magnet assembly in the recess, which can be designed as a bore in the hydraulic housing. This reduces the height of the portion of the solenoid valve protruding from the recess of the hydraulic housing. This is based on the fact that not only the valve housing, together with the components serving to guide the fluid, is arranged in regions, in particular substantially completely, but also the magnet assembly, which encompasses the valve housing at least in regions, is arranged in the recess.
  • the solenoid valve according to the invention is arranged sunk as a unit together with the magnet assembly in the recess of the hydraulic laulikgeophuses.
  • the magnet assembly encompasses the valve housing outside the hydraulic housing, i. it is arranged outside the recess, whereby a larger portion of the solenoid valve protrudes from the recess.
  • the height of the magnetic assembly controlling the control unit is reduced by the solenoid valve assembly according to the invention, since the magnetic assembly is not
  • Part of a control unit forms, but rather firmly associated with the solenoid valve, in particular the valve housing.
  • the holding element is formed by caulking of the magnetic valve, in particular of the valve housing, and of the hydraulic housing.
  • the retaining element is preferably integral with the hydraulic housing. Before and is due to the, preferably in the radial direction, stemming of the hydraulic housing with the solenoid valve as radially projecting into the recess web, in particular annular web formed.
  • the web is preferably formed at an upper portion of the recess, so that it limits the outer hollow cylinder of the receiving element and / or the cover in the axial direction in the recess. In particular, the web thereby holds the cover closing the receptacle in position, in particular in the axial position, so that the magnet assembly is held securely with respect to the valve housing.
  • the valve housing and the magnet assembly are preferably permanently fixed in the recess of the hydraulic housing. Also, a releasable configuration of the holding element can be realized, so that the solenoid valve can be easily replaced.
  • a valve body having a valve seat is at least partially pressed into an opening of the receptacle forming or with forming receiving element.
  • the opening is preferably designed as a central opening in the receiving element, in particular it is formed by the inner hollow cylinder.
  • the valve seat of the valve body in cooperation with the closing element, forms a closable passage of the solenoid valve.
  • at least one further passage is provided in the valve body, so that at least one of the passages serves as an inlet and at least one of the other passages as an outlet of the solenoid valve.
  • valve body is arranged on the side facing away from the receiving element in the recess of the hydraulic housing or in a recess of an insert member, wherein the insert member is disposed in the recess of the hydraulic housing.
  • the valve body is directly in the recess of the hydraulic arranged housing, preferably pressed into this.
  • the inlet and outlet formed in the valve body are each fluidically connected to channels formed in the hydraulic housing.
  • the valve body is pressed into the recess of the insert component, which is preferably made of plastic.
  • the inlet and the outlet of the valve body are preferably fluidically connected with channels formed in regions in the insert component, which extend into the hydraulic housing.
  • the first exemplary embodiment has the advantage that the two sealing points present in the second exemplary embodiment between the receiving element and the valve body as well as the receiving element and the hydraulic housing can be reduced to a sealing point between the valve body and the hydraulic housing.
  • the latter sealing point is preferably present as a robust, metallic sealing point between the valve body and the hydraulic housing, which are preferably each formed from a metal or a metal alloy.
  • there is an installation space and weight savings of the solenoid valve in the hydraulic housing which also brings a cost and CCh reduction.
  • a check valve and / or at least one filter in the hydraulic housing and / or in the insert component are / is arranged.
  • the filter serves to separate the fluid from solid components contained therein, which can lead to improper operation or damage to the solenoid valve.
  • the at least one filter is preferably arranged in at least one of the channels, which are in fluid communication with the inlet and / or outlet of the solenoid valve, wherein the channel may be formed in the hydraulic housing and / or in the insert component.
  • the provision of the check valve allows the fluid to flow against the intended flow direction, for example to prevent damage to the solenoid valve due to the fluid pressure therein.
  • the non-return valve is preferably formed in a bypass channel, which guides the channel leading to the inlet of the solenoid valve with the one from the
  • the bypass channel can be arranged completely in the hydraulic housing or at least partially, in particular completely, in the insert component.
  • the valve body on the side facing away from the receiving element alswei- acting as a filter perforated area aufwei- sen, which forms a valve inlet.
  • the filtering can be integrated into the inlet of the solenoid valve.
  • a circumferential undercut in the pump housing can be provided.
  • Figure 1 is a schematic longitudinal sectional view of a solenoid valve assembly according to a first embodiment
  • Figure 2 is a schematic longitudinal sectional view of a solenoid valve assembly according to a second embodiment.
  • Figure 3 is a schematic longitudinal sectional view of a solenoid valve assembly according to a third embodiment.
  • FIG. 1 shows a schematic view of a solenoid valve arrangement 1 comprising a solenoid valve 2 and a hydraulic housing 3.
  • the solenoid valve 2 is almost completely in a recess 4, which is formed as a bore 5, in particular stepped bore 6, of the hydraulic housing 3, respectively.
  • the hydraulic housing 3 is preferably a pump housing 7.
  • the solenoid valve 2 has a valve housing 8, in which a magnet armature 9 along a longitudinal axis 10 of the solenoid valve 2 is arranged to be displaceable.
  • the armature 9 is operatively connected to a designed as a plunger 1 1 closing element 12.
  • an end portion 13 of the closing element 12 is mounted in a holding opening 14 of the magnet armature 9, in particular pressed into this, wherein the end portion 13 has a larger diameter than the rest of the region of the closing element 12.
  • a hood-like valve body 15 is also at least partially arranged, which in his Bo- 15 'has a valve seat 16 with an opening 18 formed in the axial direction.
  • the opening 18 of the valve body 15 is preferably formed as an inlet 19 of the solenoid valve 2.
  • the valve body 15 has at least one further, pointing in the radial direction opening 20, which is preferably formed as an outlet 21 of the solenoid valve 2.
  • a spring support 22 is further pressed, which is formed substantially annular and the closing element 12 in the circumferential direction at least partially surrounds.
  • a spring element 23 is supported by a first end on the spring support
  • valve housing 8 and arranged therein, referred to above components form a fluid guide region of the solenoid valve second
  • the valve housing 8 of the solenoid valve 2 comprises a hood-like capsule 24 and a receiving element 25.
  • the receiving element 25 has an inner 30 hollow cylinder 26, an outer hollow cylinder 27 coaxially surrounding the inner hollow cylinder 26 and a ring element connecting the hollow cylinders 26, 27 in their end regions 28 on.
  • the inner hollow cylinder 26, the outer hollow cylinder 27 and the ring member 28 are integrally formed with each other.
  • the height of the inner hollow cylinder 26 is smaller, in particular approximately half as large as the height of the outer hollow cylinder 27.
  • the capsule 24 surrounds the inner hollow cylinder 26 of the receiving element 25 in the circumferential direction and is connected thereto by means of at least one laser welded joint 29 , In the opening formed by the inner hollow cylinder 26 opening 30, the spring support 22 and the valve body 15 are pressed.
  • a receptacle 31 of the solenoid valve 2 is formed, which at least partially at the level of in the Capsule 24 guided magnet armature 9 is located.
  • the receptacle 31 is limited in the radial direction on the inner peripheral side by the capsule 24 and on the outer peripheral side by the outer hollow cylinder 27. In the axial direction, it is limited by the ring member 28 and an annular cover 36, which between the ring member 28 facing away from the outer hollow cylinder 27 and the capsule 24 is pressed. Consequently, the receptacle 31 is formed in a hollow cylinder shape.
  • a magnet assembly 32 of the solenoid valve 2 is arranged.
  • the magnet assembly 32 comprises a coil winding 33 and a winding support 34, wherein the wound on the winding support 34 coil winding 33 via electrical connections 35 which are guided, for example, through openings in the cover 36 from the magnetic assembly 32 to a control unit, not shown, can be controlled ,
  • the magnet assembly 32 is held by the ring member 28 stationary in the receptacle 31. It is thus firmly integrated into the valve housing 8 of the solenoid valve 2.
  • the receptacle 31 is substantially rectangular in longitudinal section and substantially circular in cross section, but deviating forms are also conceivable which are adapted to the shape of the magnet assembly 32.
  • the solenoid valve 2 is designed as a normally open solenoid valve 2.
  • solenoid valve assembly 1 of the opening 30 of the receiving member 25 outstanding region of the valve body 15 is pressed into the stepped bore 6 of the hydraulic housing 3.
  • an inlet channel 37 and an outlet channel 38 are formed, which are fluidically in fluid communication with the inlet 19 and the outlet 21 of the solenoid valve 2, respectively, and are realized as bores.
  • a bypass channel 39 is further formed, which connects the inlet channel 37 with the outlet channel 38.
  • a check valve 40 is formed which includes a check valve seat 41 formed as a stepped bore 41 and a ball-shaped check valve closing member
  • the solenoid valve 2 is fixed in the recess 4 of the hydraulic housing 3 by means of a holding element 44, so that it is held immovably in the recess 4 in the axial direction.
  • the retaining element 44 is designed as a web 45 which projects radially inwards, ie into the recess 4, by a radial caulking of the hydraulic housing 3 with the solenoid valve 2, in particular the valve housing 8, at least in some areas.
  • the web 45 lies in the axial direction on the outer hollow cylinder 27 and at least richly on the cover 36 at. The web 45 thus fixes the valve housing 8 and the magnet assembly 32 together in the recess 4 of the hydraulic housing 3. In this case, the magnetic assembly 32 is completely in the recess 4 and also the valve housing 8 and the associated components are located substantially in the recess 4th
  • the solenoid valve arrangement 1 according to a second exemplary embodiment shown in FIG. 2 substantially corresponds to the first exemplary embodiment according to FIG. 1, so that reference is made to the above explanations and only the differences from the first exemplary embodiment are discussed below.
  • the valve body 15 of the solenoid valve 2 is arranged with its end facing away from the receiving element 25 in a recess 46 of an insert member 47 preferably formed of plastic, which in turn is present in the stepped bore 6 of the hydraulic housing 3.
  • a channel 48 is formed, which connects the inlet channel 37 of the hydraulic housing 3 with the inlet 19 of the solenoid valve 2 fluidly.
  • a further channel may be provided in the insert component 47, which fluidly connects the outlet channel 38 of the hydraulic housing 3 to the outlet 21 of the solenoid valve 2. In the embodiment of Figure 2, however, the outlet channel 38 and the outlet 21 are connected directly to each other.
  • a filter 50 is arranged, which is preferably a pressed-flat filter, which is located both partially in the inlet channel 37 and partially in the bypass channel 39. Also in the embodiment of Figure 1, preferably at least one filter 50 in the inlet channel 37 and / or outlet channel 38 and / or bypass channel 39 of the hydraulic housing 3 is arranged (not shown).
  • the check valve 40 is provided in the second embodiment, deviating from the first embodiment in the insert member 47.
  • the procedure is as follows: First, the closing element 12 is mounted in the holding opening 14 of the magnet armature 9 and the composite components are inserted into the capsule 24. Then the receiving element
  • the valve body 15 is pressed into the receiving element 25 at Voreinstellhow. Thereafter, the magnet assembly 32 is disposed in the receptacle 31 of the valve housing 8 and the cover 36 between the capsule 24 and the receiving element 25, in particular the outer hollow cylinder 27, pressed, wherein the dimensions of an air gap between the cover 36 and the capsule 24 by the press connection be optimized.
  • the function setting of the solenoid valve 2 in particular with regard to the air gap formation between the magnet assembly 32 and valve housing 8.
  • the adjustment is carried out until a force equilibrium state between the pneumatic opening pressure and the spring force or the magnetic force set at constant energization of the magnet assembly 32. Thereafter, the stroke adjustment of the magnet armature 9 by deformation of the bottom 24 'of the capsule 24, that is in the abutment region of the magnet armature 9.
  • the insert member 27 is further pressed onto the valve body 15.
  • FIG. 3 shows a schematic view of a solenoid valve arrangement V comprising a solenoid valve 2 'and a hydraulic housing 3.
  • the solenoid valve arrangement V shown in FIG. 3 according to a third exemplary embodiment differs from the first and second exemplary embodiments according to FIGS. 1 and 2 in that the solenoid valve 2 'is designed as a normally closed solenoid valve 2'.
  • the solenoid valve 2 ' is analogous to the first and second embodiment almost completely in a recess 4, the tion as a bore 5, in particular stepped bore 6, the hydraulic housing 3 is arranged.
  • the hydraulic housing 3 is preferably a pump housing 7.
  • the solenoid valve 2 ' has a valve housing 8', in which a magnet armature 9 'along a longitudinal axis 10 of the solenoid valve 2' is arranged displaceably.
  • the magnet armature 9 ' is formed in one piece with a plunger 11', which is connected to a plunger 11 '.
  • nem closing element 12 ' is operatively connected, wherein an end region of the magnet armature 9' facing away from the closing element 12 'has a larger diameter than the tappet 11'.
  • the closing element 12 ' is designed as a ball and connected via a flange with the plunger 1 1'.
  • a hood-like valve body 53 is at least partially arranged, which has in its bottom 53' a valve seat 16 with an opening 18 formed in the axial direction.
  • valve body 53 In a closed position of the solenoid valve 2 'designed as a ball of the closing element 12' acts sealingly with the valve seat 16 together.
  • the opening 18 of the valve body 53 is preferably formed as an outlet 21 of the solenoid valve 2 '.
  • the valve body 53 has a perforated
  • the perforated area 54 serves as a filter.
  • integration of the filtering into an inlet 19 of the solenoid valve 2 ' is possible due to the circumferential "perforated" region 54 of the valve body 53.
  • a circumferential undercut 55 is provided in the pump housing 7.
  • a spring support 22 'on which a spring element 23 is supported with a first end is recessed, and with a second end opposite the first end, the spring element 23 is supported on an end region of a pole core 51, which is pressed into a sleeve 52 and is fluid-tightly connected to the sleeve via a laser welding connection 29.
  • the valve housing 8 'of the solenoid valve 2' comprises the sleeve 52 which is closed at one end of the pole core 51, and a receiving element 25.
  • the receiving element 25 has, analogous to the first and second embodiments, an inner hollow cylinder 26, an inner hollow cylinder 26 coaxially surrounding outer hollow cylinder 27 and a hollow cylinder 26, 27 in their end regions connecting ring member 28 on.
  • the inner hollow cylinder 26, the outer hollow cylinder 27 and the ring member 28 are integrally formed with each other.
  • the height of the inner hollow cylinder 26 is smaller, in particular approximately half as large as the height of the outer hollow cylinder 27.
  • the sleeve 52 surrounds the inner hollow cylinder 26 of the receiving element 25 in regions in the circumferential direction and is at least one with this La Sersch spathetic 29 connected.
  • opening 30 of the valve body 53 is pressed into abutment and the plunger 11 'movably guided.
  • a receptacle 31 of the solenoid valve 2' is formed, which at least partially at height of the guided in the sleeve 52 magnet armature 9 'is located.
  • the receptacle 31 is limited in the radial direction on the inner peripheral side by an outer wall 52 'of the sleeve 52 and an outer wall 51' of the pole core 51 and the outer peripheral side by an inner wall 27 'of the outer hollow cylinder 27.
  • the receptacle 31 is formed hollow cylinder-shaped.
  • a magnet assembly 32 of the solenoid valve 2 ' is arranged in the receptacle 31.
  • the magnet assembly 32 includes, analogous to the first and second embodiments, a coil winding 33 and a winding support 34, wherein wound on the winding support 34 coil winding 33 via electrical connections 35, for example, through openings in the cover 36 from the magnetic assembly 32 to a not shown Control unit are guided, is controllable.
  • the magnet assembly 32 is held by the ring member 28 stationary in the receptacle 31. It is insofar firmly integrated into the valve housing 8 'of the solenoid valve 2'.
  • the receptacle 31 is substantially rectangular in longitudinal section and substantially circular in cross section, but deviating forms are also conceivable which are adapted to the shape of the magnet assembly 32.
  • solenoid valve assembly 1 'of the opening 30 of the receiving element 25 outstanding region of the valve body 53 is pressed into the stepped bore 6 of the hydraulic housing 3.
  • an inlet channel 37 and an outlet channel 38 are formed, each of which is in fluid communication with the inlet 19 and the outlet 21 of the solenoid valve 2 'in fluid communication and are realized as bores.
  • the solenoid valve 2 ' is, analogous to the first and second embodiments, fixed in the recess 4 of the hydraulic housing 3 by means of a holding element 44, so that it is held immovably in the recess 4 in the axial direction.
  • the holding element 44 is formed as a by a radial caulking of the hydraulic housing 3 with the solenoid valve 2 ', in particular the valve housing 8', as a radially inwardly, ie, in the recess 4, projecting, at least partially annular web 45.
  • the web 45 is in the axial direction of the outer hollow cylinder 27 and at least partially on the cover 36 at. The web 45 thus fixes the valve housing 8 'and the magnet assembly 32 together in the recess 4 of the hydraulic housing 3. In this case, the magnetic assembly 32 is completely in the recess 4 and also the valve housing 8' and the associated components are located substantially in the recess 4th
  • the procedure is as follows: First, the valve body 53 is pressed into abutment in the opening 30 of the receiving element 25. Then, the inner hollow cylinder 26 of the receiving element 25 is pressed to measure in the sleeve 52 and the sleeve 52 laser welded to the receiving element 25. Then, the armature 9 'with the plunger 11' and designed as a flanged ball closure member 12 'in the sleeve 52 and the valve body 53 is mounted.
  • the spring element 23 embodied as a helical compression spring is inserted into a spring receptacle of the magnet armature 9 ', which is preferably designed as a bore, which is delimited by the spring support 22'.
  • the pole core 51 is pressed to measure in the sleeve 52 and the sleeve 52 and the pole core 51 laser welded.
  • the stroke adjustment of the magnet armature 9 ' takes place by specifying a working air gap formed between the pole core 51 and the magnet armature 9'.
  • the magnet assembly 32 is arranged with the wound on the winding support 34 coil winding 33 in the receptacle 31 of the valve housing 8 'and the cover 36 between the pole core 51 and the receiving element 25, in particular the outer hollow cylinder 27, pressed, the dimensions of an air gap between the cover plate 36 and the pole core 51 are optimized by the press connection.
  • the inventive design of the receiving element 25, a reduction in the number of components to be mounted individually of the solenoid valve 2 and thus of assembly, parts and overall costs is achieved.
  • a separate filter 50 does not have to be assigned to each solenoid valve 2, 2 '(second exemplary embodiment) or a perforated region 54 acting as a filter on the side of the receiving element 25 facing away from Valve body 53 are formed (third embodiment).
  • the filter 50 is preferably realized as a plug-in filter which is arranged in a bore of the hydraulic housing 3, which, inter alia, forms the inlet channel 37 or outlet channel 38 and leads, for example, to the main and wheel brake cylinders. As a result, parts and assembly costs can be further reduced.
  • the cost of producing the bypass channel 39 in the hydraulic housing 3 and the production of the balls 43, 43 'and the associated Einpressrind for closing the production of the bypass channel 39 bores is low due to the known, applied in mass production, cost-optimized processes. Furthermore, the quality of the seal of the check valve 40 in the hydraulic housing 3 is ensured by a machining process.
  • the stroke of the check valve 40 is given by the distance of the check valve closure member 42 and serving as a bore closure ball 43 '.
  • the ball 43 ' is pressed against the stop against a step formed as a stepped bore hole.
  • An inserted as a starting material aluminum blank for the hydraulic housing 3 can be dimensioned space-optimized, since less installation space for the solenoid valve 2 according to the invention is required. By reducing the amount of aluminum material, cost reduction is possible.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Fluid Mechanics (AREA)
  • Transportation (AREA)
  • Magnetically Actuated Valves (AREA)

Abstract

L'invention concerne une électrovanne (2) comprenant un module électromagnétique (32) et un corps de vanne (8), le module électromagnétique (32) entourant, au moins partiellement, le corps de vanne (8). Dans ledit corps de vanne (8) est monté un induit magnétique (9) doté d'un élément de fermeture (12), déplaçable axialement au moyen d'une force magnétique produite par le module électromagnétique (32), l'élément de fermeture (12) coopérant de manière étanche, en position de fermeture de l'électrovanne (2), avec un siège de vanne (16). Il est prévu, pour l'intégration du module électromagnétique (32) dans le corps de vanne (8), que le corps de vanne (8) présente un logement (31) pour le module électromagnétique (32), le corps de vanne (8) entourant le module électromagnétique (32), au moins partiellement dans la direction circonférentielle. L'invention concerne en outre un dispositif électrovanne (1).
EP12728204.4A 2011-07-01 2012-06-12 Électrovanne et dispositif électrovanne Withdrawn EP2726350A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102011078502 2011-07-01
DE102012209729A DE102012209729A1 (de) 2011-07-01 2012-06-11 Magnetventil
PCT/EP2012/061064 WO2013004454A1 (fr) 2011-07-01 2012-06-12 Électrovanne et dispositif électrovanne

Publications (1)

Publication Number Publication Date
EP2726350A1 true EP2726350A1 (fr) 2014-05-07

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP12728204.4A Withdrawn EP2726350A1 (fr) 2011-07-01 2012-06-12 Électrovanne et dispositif électrovanne

Country Status (4)

Country Link
EP (1) EP2726350A1 (fr)
KR (1) KR101958178B1 (fr)
DE (1) DE102012209729A1 (fr)
WO (1) WO2013004454A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013219041A1 (de) 2013-09-23 2015-03-26 Robert Bosch Gmbh Ventileinrichtung
DE102016219957A1 (de) * 2016-10-13 2018-04-19 Robert Bosch Gmbh Magnetventil und hydraulisches Bremssystem für ein Fahrzeug
DE102017211324A1 (de) * 2017-07-04 2019-01-10 Robert Bosch Gmbh Hydraulikeinheit und Steuergerät für ein hydraulisches Bremssystem

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2052307A1 (de) * 1970-10-24 1972-05-25 Teves Gmbh Alfred Elektromagnetisch betätigtes Sitzventil
EP0794886B1 (fr) * 1994-12-07 1999-09-22 Itt Industries, Inc. Vanne electromagnetique pour systemes de freinage hydrauliques antipatinage
DE19635693A1 (de) * 1996-09-03 1998-03-05 Bosch Gmbh Robert Magnetventil für eine schlupfgeregelte, hydraulische Fahrzeugbremsanlage
DE19849667A1 (de) * 1998-10-28 2000-05-04 Bosch Gmbh Robert Elektromagnetische Vorrichtung, insbesondere für eine schlupfgeregelte, hydraulische Fahrzeugbremsanlage
DE10038091B4 (de) * 2000-08-04 2009-01-15 Robert Bosch Gmbh Magnetventil, insbesondere für eine schlupfgeregelte, hydraulische Fahrzeugbremsanlage
DE102004009461A1 (de) * 2004-02-27 2005-09-15 Robert Bosch Gmbh Ventil
DE102005037964B4 (de) * 2005-03-22 2014-04-30 Continental Teves Ag & Co. Ohg Elektromagnetventil
DE102005042888A1 (de) * 2005-05-13 2006-11-16 Continental Teves Ag & Co. Ohg Drucksteuerventil
KR101021496B1 (ko) * 2005-11-28 2011-03-16 주식회사 만도 브레이크 시스템용 솔레노이드 밸브
DE102006055831A1 (de) 2006-11-27 2008-05-29 Robert Bosch Gmbh Magnetventil
DE102009019534A1 (de) * 2009-04-30 2010-12-02 Schaeffler Technologies Gmbh & Co. Kg Elektromagnetisches Hydraulikventil

Non-Patent Citations (1)

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Title
See references of WO2013004454A1 *

Also Published As

Publication number Publication date
DE102012209729A1 (de) 2013-01-03
KR101958178B1 (ko) 2019-03-15
KR20140035460A (ko) 2014-03-21
WO2013004454A1 (fr) 2013-01-10

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