WO2023111057A1 - Elektromagnetischer aktuator - Google Patents
Elektromagnetischer aktuator Download PDFInfo
- Publication number
- WO2023111057A1 WO2023111057A1 PCT/EP2022/085922 EP2022085922W WO2023111057A1 WO 2023111057 A1 WO2023111057 A1 WO 2023111057A1 EP 2022085922 W EP2022085922 W EP 2022085922W WO 2023111057 A1 WO2023111057 A1 WO 2023111057A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- electromagnetic actuator
- bearing
- armature
- elevations
- coil
- Prior art date
Links
- 230000035515 penetration Effects 0.000 claims description 3
- 238000005452 bending Methods 0.000 claims 1
- 238000007373 indentation Methods 0.000 description 20
- 238000007789 sealing Methods 0.000 description 14
- 230000009191 jumping Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000012530 fluid Substances 0.000 description 3
- 230000004907 flux Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
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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
- H01F7/14—Pivoting armatures
-
- 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
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
- B60T13/66—Electrical control in fluid-pressure brake systems
- B60T13/68—Electrical control in fluid-pressure brake systems by electrically-controlled valves
-
- 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
- B60T15/00—Construction arrangement, or operation of valves incorporated in power brake systems and not covered by groups B60T11/00 or B60T13/00
- B60T15/02—Application and release valves
-
- 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
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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
- F16K31/0682—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid with an articulated or pivot armature
-
- 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
- H01F7/081—Magnetic constructions
-
- 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
- H01F7/121—Guiding or setting position of armatures, e.g. retaining armatures in their end position
-
- 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
- H01F7/081—Magnetic constructions
- H01F2007/086—Structural details of the armature
Definitions
- the present invention relates to an electromagnetic actuator with a coil arrangement with at least one coil core and a coil arranged circumferentially around the coil core, and with a movable magnetic armature body as a movable actuator element.
- Electromagnetic actuators are known, for example, in the form of electromagnetic switching or valve devices, such as in the form of an electromagnetic relay or solenoid valve.
- Solenoid valves for example in the form of tilting armature valves, are used, for example, as control valves for regulating the pressure of air, for example in a vehicle, for example in a commercial vehicle or bus for passenger transport.
- a brake system for a vehicle with an electronic service brake system includes at least one control valve for pressure regulation.
- An electromagnetic actuator in the form of a tilting armature valve is known, for example, from DE 10 2016 105 532 A1.
- the electromagnetic actuator has a coil arrangement with at least one coil core and a coil arranged circumferentially around the coil core and a movable magnetic armature body as the actuator element.
- the armature body is mounted on the coil assembly via two balls that are pressed into the armature body.
- the present invention is based on the object of specifying an electromagnetic actuator of the type mentioned at the outset, in which production can be simplified.
- the invention relates to an electromagnetic actuator of the type mentioned in the opening paragraph according to the appended patent claims.
- Advantageous training and developments of the invention are specified in the subclaims and the following description.
- one aspect of the present invention relates to an electromagnetic actuator having a coil arrangement with at least one coil core and a coil arranged circumferentially around the coil core and a movable magnetic armature body as a movable actuator element, which can be moved by a magnetic field generated by the coil arrangement.
- the anchor body is supported by a bearing arrangement and is movable from a first position to a second position.
- the bearing arrangement has at least two depressions in a first bearing portion formed on the armature body and at least two elevations in a second bearing portion formed on the actuator on the coil assembly side.
- the depressions are integrated in the anchor body and are in the form of at least two depressions which are at least partially cylindrical and shell-like and are arranged at a distance from one another in the direction of a bearing axis of the anchor body.
- the elevations are in the form of at least two elevations which are spaced apart in the direction of the bearing axis of the anchor body and are at least partially cylindrical and which engage in a respective one of the depressions.
- the bearing arrangement Since the bearing arrangement has indentations on the magnetic armature body, the bearing arrangement has a positive influence on a magnetic flux in the armature body and its kinetic effect on the armature body. Furthermore, the bearing arrangement enables the armature body to be positioned well and accurately in the actuator element, in particular on the coil arrangement.
- the mirror-inverted shell-like bearing points allow long-term symmetrical wear of the bearing arrangement, so that the wear has a reduced effect, in particular on the rotational positioning and thus the function of the electromagnetic actuator.
- the bearing arrangement can absorb high transverse forces, in particular magnetic transverse forces, even with low contact pressure forces, without the armature body detaching from the coil arrangement.
- the spacing of the depressions along the bearing axis of the anchor body enables centering over two contact surfaces with a small distance. This improves the precision and functionality over the service life of the electromagnetic actuator. Furthermore, manufacturing tolerances can be reduced due to the integrated storage arrangement.
- the elevations are arranged at a distance from one another in the direction of the bearing axis of the anchor body and are at least partially cylindrical.
- the elevations are designed as a type of half-cylinder, which extend on the side of the coil arrangement in the direction of the armature body.
- the arrangement and shape of the elevations correspond to the arrangement and shape of the depressions in the anchor body.
- the depressions are each provided as a partially cylindrical depression in the anchor body.
- the electromagnetic actuator according to the invention is preferably in the form of a solenoid valve, for example for a brake system of a vehicle, in particular a commercial vehicle.
- one of the elevations and one of the depressions make contact at two contact lines that are tangential to the respective surface and run in the direction of the bearing axis of the armature body.
- two spaced-apart line-like contact points are formed between the corresponding elevation and depression, as a result of which precise guidance of the anchor body is made possible without a great deal of bearing play.
- a smaller bearing clearance also increases the durability of the electromagnetic actuator.
- the projections and depressions that engage in one another have different surface radii in respective areas of the tangential contact lines (line contacts). This enables advantageous and play-free contacting between the corresponding elevation and depression that is reliable over wide ranges of movement of the anchor body. In this way, wear and tear on the bearing arrangement can be further reduced, as a result of which the durability of the electromagnetic actuator is improved.
- the elevations are each flattened in an area between the tangential contact lines (line contacts) of the cylindrical shape and are not in contact with the respective depression in the flattened area. This prevents a large bearing play, since it is not the highest point of the elevation that comes into contact with the depression, but two points on a circular arc with a tangent angle to one another. As a result, the bearing arrangement is largely free of play over the service life.
- At least one of the depressions is formed in such a way that an end face of the at least one of the Indentations facing the respective other indentation are curved, in particular spherical, or flattened from the cylindrical shell-like shape.
- This configuration of the recess enables an improvement in bearing centering. The wear and tear on the bearing arrangement can also be reduced hereby.
- a bearing centering along the bearing axis is brought about by the end face of the at least one of the depressions in cooperation with the respective elevation.
- At least one of the elevations is designed such that an end face of the at least one of the elevations, which faces the other elevation, is curved, in particular spherical, or flattened from the cylindrical shape.
- This configuration of the recess enables an improvement in bearing centering. The wear and tear on the bearing arrangement can also be reduced hereby.
- the bearing is centered along the bearing axis by the end face of the at least one of the elevations interacting with the respective depression.
- an axis of symmetry of the indentations in the axial direction of the indentations is arranged below a surface of the anchor body adjoining the indentations.
- This means that the theoretical axis of rotation of the indentations is arranged below the surface of the anchor body adjoining the indentations in such a way that a straight flank is formed tangentially to the cylindrical shape.
- An intermediate section between the surface of the anchor body and the start of the cylindrical shape of the recess can thus be designed to be approximately rectilinear in cross section. This allows the bumps to penetrate deeper into the anchor body. This prevents the anchor body from jumping out of the guide provided by the storage arrangement and a Emergency functionality ensured, for example, when a spring force for pressing the anchor body to the second bearing section decreases or fails.
- the electromagnetic actuator has a spring element for pressing the anchor body against the second bearing section.
- the spring element can be designed as a leaf spring, torsion spring or bent wire element. This ensures that the armature body is reliably supported on the coil arrangement. As a result, the wear of the armature body and the second bearing section, in particular the depressions and the elevations, remains low, which improves the durability of the electromagnetic actuator.
- the spring element presses the armature body against the second bearing section in the first position and holds it in position.
- the electromagnetic actuator also has at least one support element which is arranged on a side of the armature body facing away from the coil arrangement opposite the depressions and supports the armature body when the armature body falls away from the elevations. This prevents the anchor body from jumping out of the guide provided by the elevations and ensures emergency functionality, for example in the event that a spring element breaks or becomes detached. If a play-free bearing in the "dropped" state of the anchor body is not necessary, a spring element (bearing spring), as described above, can also be dispensed with thanks to the at least one support element.
- the elevations have a penetration depth into the depressions that is dimensioned such that the bearing axis is arranged deeper than a surface of the anchor body outside of the depressions. This prevents the armature body from jumping out of the guide and prevents the armature body from slipping or becoming detached from the coil assembly, and emergency functionality is ensured.
- the anchor body is designed as a plate anchor.
- the electromagnetic actuator is designed as an electromagnetic switching or valve device with the armature body as a switching or valve element, in particular as an electromechanical relay or solenoid valve.
- the electromagnetic actuator is designed as a tilting armature valve.
- the electromagnetic actuator is designed as a solenoid valve for a pressure control module of a vehicle.
- FIG. 1A, 1B schematic cross-sectional representations of an exemplary tilting armature valve, in which an electromagnetic actuator according to the invention can be used in principle
- FIG. 2 is a perspective view of an exemplary prior art armature body for use in the toggle armature valve of FIG. 1;
- FIG. 3 shows a schematic cross-sectional representation of an embodiment of an electromagnetic actuator according to the invention, perpendicular to a bearing axis A, such as is used, for example, in a tilting armature valve according to FIG.
- FIG. 4 shows a schematic enlarged cross-sectional illustration of a bearing arrangement according to an embodiment of an electromagnetic actuator according to the invention, a section plane along the bearing axis A from FIG. 3 being selected;
- FIG. 5 shows an enlarged perspective representation of an elevation of a bearing arrangement of an embodiment of an electromagnetic actuator according to the invention.
- FIG. 6 shows an enlarged perspective representation of two indentations, arranged in the armature body, of a bearing arrangement of an embodiment of an electromagnetic actuator according to the invention.
- FIGS. 1A and 1B show, with reference to FIGS. 1A and 1B, a simplified cross-sectional illustration of a tilting armature valve 100 in which an electromagnetic actuator 105 according to the invention, as shown in partial sections in FIGS. 3 to 6, can in principle be used.
- 1 is intended to illustrate an exemplary, practical use of an electromagnetic actuator according to the invention using a tilting armature valve.
- 2 shows an exemplary anchor body 115, which is known from DE 10 2016 105 532 A1 and which, with the exception of the bearing (in the area of elevations 160, 160a), can also be used in principle in an actuator according to the invention.
- the tilting armature valve 100 can be an exemplary embodiment of a tilting armature valve 100 shown in DE 10 2016 105 532 A1. In one variant, this can be a solenoid valve provided with reference number 100 in FIG. 1 there.
- the tilting armature valve 100 has a coil element 110, an armature body (or armature for short) 115, a spring 120, a sealing element 125 and a cover shell 130.
- the coil element 110 comprises at least one coil core 135, which is aligned along a longitudinal axis 137, a coil body 128 arranged circumferentially around the coil core 135, and a coil 140 arranged circumferentially around the coil body 128 with a package of coil windings (not explicitly shown).
- An end face of the armature 115 is supported by a bearing 145 .
- the armature 115 is moveable between a first position 147 and a second position 149 .
- the armature 115 is designed to be moved from the first position 147 into a second (tightened) position 149 when the coil 140 is activated.
- the armature 115 can be held in the second position 149 .
- the sealing element 125 is arranged on the side of the armature 115 facing away from the coil element 110 .
- a valve seat 150 with an outlet 155 and an inlet 157 for a fluid 158 is formed in the cover shell 130 .
- the outlet 155 can be closed in a fluid-tight manner by means of the sealing element 125 when the armature 115 is arranged in the first position 147 .
- the sealing element 125 can also act as a damping element in order to prevent the armature 115 from striking the valve seat 150 .
- the sealing element 125 can be attached to the armature 115 or a carrier element by vulcanization. It is also conceivable that an angle when the armature 115 or sealing element 125 hits the valve seat 150 by means of an inclined nozzle or an inclined formed sealing element 125 or a curved anchor 115 is produced.
- a nozzle which is not explicitly shown in FIG. 1A, does not necessarily have to be integrated into the tilting anchor valve 100, but can also be provided by external housing parts.
- valve seat 150 is arranged in the coil element 110, although this is not shown explicitly in FIG. 1A for reasons of clarity. In this case, an actuator would then be advantageous that mediates a release of the output through the armature 115.
- armature 115 has at least one at least partially round elevation 160 in a bearing section 162, elevation 160 engaging in a recess 165 or opening that is arranged in a section of a housing 170 of tilting armature valve 100 that is opposite elevation 160.
- the armature 115 can slide in the recess during a movement from the first position 147 to the second position 149 after switching on a current flow through the coil 140 and is at the same time in a fixed position in the housing 170 or in relation to the cover shell 130 held.
- the recess is trapezoidal in shape so that the lowest possible friction is caused when the elevation slides over the surface of the recess 165 .
- the recess 165 can be made of plastic material, for example.
- the spring 120 is designed as a leaf spring and is arranged in the bearing section on a side of the armature 115 opposite the coil 140 .
- the spring 120 serves to press the bearing ball(s) pressed into the armature 115, for example, into the (e.g. trapezoidal) mating shell or recess 165 in the housing 170 of the coil element 110 without play.
- the armature 115 can be fixed by the spring 120 so that the armature 115 is held by the spring 120 in a predetermined position.
- FIG. 1B shows a cross-sectional view through a toggle armature valve 100 with the armature 115 in the second position 149.
- a current is switched on through the coil 140 and the armature 115 is attracted, so that a magnetic field represented by the field lines 180 builds up.
- the armature 115 can fall back into the first position 147, for example due to gravity or a spring force of a restoring spring 195 shown.
- FIG. 2 shows a perspective representation of the exemplary armature 115, which is also known from DE 10 2016 105 532 A1, for use in the tilting armature valve 100.
- the armature 115 is designed here as a plate armature.
- the armature 115 has two pressed-in balls as elevations 160, 160a, which are arranged in a direction that forms a bearing axis of the armature 115 during rotation after the current through the coil 140 is switched on. This means that the elevations 160 and 160a are arranged side by side along the bearing axis A.
- a spring fastening section 196 is formed centrally on the armature 115 and interacts with the return spring 195 and prevents the return spring 195 from slipping off the armature 115 .
- FIG. 3 shows a schematic cross-sectional illustration of an embodiment of an electromagnetic actuator according to the invention, perpendicular to a bearing axis A, such as can be used, for example, in a tilting armature valve according to FIG.
- Identical, equivalent or analogous components are denoted by the same reference symbols in FIGS. 1-6.
- the bearing axis A is arranged parallel to an end face of a coil former 328 .
- the end face 328a lies in a plane which is preferably oriented at an approximately right angle to the longitudinal axis 137 of the coil core 135 .
- 3 shows a left-hand part of the coil core 135, which has a central recess into which the return spring 195 is inserted.
- the return spring 195 is designed to bias the armature body 115 into an initial position when the electromagnetic actuator 105 is not energized. In connection with FIG. 1 this means that the anchor body 115 is prestressed in the first position 147 .
- the coil body 328 is arranged on a radial outer surface of the coil core 135 .
- a sealing ring receiving space 189 is formed, which is arranged in the form of a circumferential depression or recess on a radial outside of the coil body 328.
- a sealing element 190 in particular an O-ring, which interacts with the housing 170 surrounding the coil body 328, so that between an area in which the armature body 115 is positioned and an area in which the coil 140 is positioned, fluid passage is avoided.
- the bobbin 328 has a second bearing section 302 of the bearing arrangement 300 .
- the bearing section 302 could, however, also be arranged in principle on another element of the actuator 105, for example on a housing part of the housing 170 or on a separate element (cf. plastic element 165 in FIG. 1A) on an end face of the coil body 328.
- At least two elevations 320a and 320b are formed in the second bearing section 302, only a first one of the elevations 320a being shown in cross-section in FIG.
- the anchor body 115 is mounted on one side on the actuator 105, as shown.
- bearing arrangement 300 is located on an end face of armature 115, i.e. in a radially outer area of armature 115.
- the elevations 320a and 320b are formed integrally with the coil body 328.
- the second bearing section 302 with its elevations 320a and 320b can be arranged on another element of a coil arrangement or the housing, which can be arranged between the coil body 328 and the armature body 115, such as an element that has the indentation 165 in Fig. 1A.
- the bumps 320a and 320b are formed at a closest component from the armature body 115 toward the coil 140.
- the Elevations 320a and 320b are retrofitted, even if the integral training is preferable.
- the elevations 320a and 320b are in the form of at least two elevations 320a and 320b which are arranged at a distance from one another in the direction of the bearing axis A of the anchor body 115 and are at least partially cylindrical.
- the cylindrical part of the elevations 320a and 320b is arranged on a respective column section 322a and 322b extending from an end face of the bobbin 328, so that the cylindrical part of the elevations 320a and 320b does not end directly at an end face 328a of the bobbin 328, but first merges into the column section 322a and 322b.
- the column section 322a and 322b forms a transition from the cylindrical part of the elevations 320a and 320b to the end face 328a of the coil body 328. Between the elevations 320a and 320b in the direction of the bearing axis A there is a coil body section 323 which, for example, lies in the plane in which the end face 328a of the coil body 328 is also arranged.
- the columnar portions 322a and 322b may be optionally provided in the electromagnetic actuator 105.
- the projections 320a and 320b are flattened in a respective region 333a and 333b between two tangential lines of contact 331 and 332 from the cylindrical shape.
- the flattened areas 333a, 333b can in particular be formed parallel to the end face 328a of the coil former 328 or to an end face of an element of the coil arrangement provided with the elevations 320a, 320b.
- the respective elevation 320a and 320b is not in contact with a corresponding depression 310a and 310b of a first bearing section 301 of the bearing arrangement 300.
- This flattened area 333a, 333b is used for robustness over a tolerance range of the bearing arrangement and prevents large bearing play , since it is not the one highest point that comes into contact with the respective indentation 320a and 320b, but rather two points (on the tangential contact lines or line contacts 331 and 332) on a circular arc with a tangent angle to one another.
- the elevations 320a and 320b of the second bearing section 302 interact with the depressions 310a and 310b of the first bearing section 301 .
- the recesses 310a and 310b and the first bearing portion 301 are formed in a radially outer (end) area on the armature body 115 .
- the indentations 310a and 310b are integrated in the anchor body 115 and are designed in the form of at least two at least partially cylindrical, shell-like indentations which are spaced apart in the direction of the bearing axis A of the anchor body 115 .
- the depressions 310a and 310b and the elevations 320a and 320b are designed in such a way that they interact when installed and together form the bearing arrangement 300 .
- a surface section 317 of a surface 315a of the anchor body 115 is arranged between the depressions 310a, 310b. This surface section 317 serves to spatially separate the indentations 310a, 310b along the bearing axis A.
- the inclination of the side walls of the depressions 310a, 310b depends on a desired armature lift angle and should be selected such that self-locking acts on the armature body 115 when a transverse force occurs, thus preventing the armature body 115 from being lifted out of the elevations 320a, 320b.
- an at least partially cylindrical shape means that in particular at least one partial surface is present which has a cylindrical shape or a partially cylindrical shape (for example part of a cylindrically shaped lateral surface).
- the elevations are not necessarily designed as "pure" cylinders. It is sufficient if a portion of its surface has the shape of a cylindrically shaped lateral surface. The same applies to the at least partially cylindrical shell-like depressions.
- the armature body 115 is arranged in such a way that the surface 315a of the armature body 115 faces the end face 328a of the coil body 328 .
- the armature body 115 also has an opposite surface 315b that faces away from the bobbin 328 and thus also from the second bearing portion 302 .
- Opposite the surface 315b of the anchor body 115 is, for example, the cover shell 130 (or another housing part of housing 170).
- a support element 131 is formed on a surface facing the anchor body 115 and is located opposite the surface 315b of the anchor body 115, in particular opposite a bulge 340a formed by the depression 310a.
- the support element 131 can be structurally avoided that the armature body 115 slips off the coil body 328 and thus a pivoting movement of the armature body 115 would no longer be possible, whereby an “emergency functionality” is made possible.
- the support element 131 can be used to prevent the depressions 310a, 310b from slipping off the elevations 320a, 320b.
- the cover shell 130 can also be designed without a support element 131 .
- the storage arrangement 300 which does not require a needle bearing and an axial guidance of the needle bearing by a spring, is a structurally simple option for a reliable and low-wear storage arrangement.
- Two axial directions can be fixed by the two depressions 310a, 310b in cooperation with the two elevations 320a, 320b and an axial guidance by the spring 120 can be dispensed with.
- a bearing can be realized with an advantageous centering along the bearing axis A, with the resultant lower magnetic transverse forces and thus less bearing wear.
- it is advantageous that the depressions 310a, 310b can be integrated into the anchor body 115 and shaped.
- FIG. 4 shows a schematic enlarged cross-sectional illustration of the bearing arrangement 300, with a sectional plane running along the bearing axis A.
- the depressions 310a and 310b advantageously have a spherical end face 311a, 311b pointing towards the respective other depression 310a and 310b.
- the end faces 311a and 311b can also be flattened.
- the end face 314b of the indentation 310b which faces away from the end face 311b extends approximately at right angles to the surface 315a of the anchor body 115.
- the end face 314a of the indentation 310a which faces away from the end face 311a also extends approximately at right angles to the surface 315a of the anchor body 115.
- the elevations 320a and 320b also each have a spherical end face 321a and 321b which face one another.
- the end faces 321a and 321b can also be at least partially flattened. End faces designed in this way also contribute to an axial centering of the bearing arrangement along the bearing axis A.
- a spherical surface includes in particular that there is at least one partial surface that has a three-dimensionally curved, in particular outwardly curved (convex) shape, in particular a spherical shape or a partially spherical shape (e.g. part of a spherically shaped surface). has.
- the three-dimensional arched or rounded aspect is more important here, without an exact circular arc shape being important, but which can also have specific advantages with regard to axial centering.
- This term should also include, for example, elliptical or other three-dimensionally or three-dimensionally rounded or curved shapes.
- the end faces are not necessarily designed as "pure" spherical surfaces.
- a portion of its surface has a three-dimensional curved shape.
- correspondingly straight (planar) shaped surfaces can also be used (Without curvature) may be provided, which form part of the surface in question.
- the configurations of the depressions 310a and 310b and the elevations 320a and 320b described enable the armature body 115 to be mounted on the coil body 328 largely without play. This enables low wear and has a positive effect on the durability of the electromagnetic actuator 105. This configuration also enables an axial alignment along the bearing axis A, whereby transverse forces can also be absorbed without the functionality of the electromagnetic actuator 105 being significantly restricted.
- elevation 320b extends away from end face 328a of coil body 328.
- a column section 322b follows in the extension direction, ie with a curved transition, from the end face 328a of the coil body 328. Extending from the columnar portion 322b is a substantially cylindrical portion 313b of the ridge 320b in a right portion of the ridge 320b and a spherical portion of the ridge 320b in a left portion of the ridge 320b.
- the spherical part of the elevation 320b has a spherically formed end face 321b which merges into a flattened area 333b in the cylindrical part 313b of the elevation 320b at the end of the elevation 320b remote from the end face 328a.
- the statements relating to the elevation 320b also apply in an analogous (mirror-inverted) form to the opposite elevation 320a, which is not shown here.
- the outer surface of the elevations 320a, 320b is thus designed in the cylindrical part 313b according to the principle of a spherical roller bearing.
- FIG. 6 shows an enlarged perspective representation of an anchor body 115 with depressions 310a and 310b of the bearing arrangement 300 arranged in the anchor body 115.
- the spring attachment section 196 interacts with the return spring 195, as described above.
- the end faces 311a and 311b formed spherical.
- the end faces 311a and 311b may be flattened from a cylindrical shape.
- the end faces 311a, 311b adjoin a respective essentially cylindrical part 312a, 312b (similar to the elevations).
- An electromagnetic actuator thus provides a bearing concept with an at least partially cylindrical plain bearing with a centrally located interruption as an axial fixation.
- This concept can be advantageously used in particular in the case of tilting and/or folding armature electromagnet devices. Due to the bulging indentations, the bearing also presents an increased reluctance, which increases the path length of the magnetic flux, thus directing the magnetic flux into areas with greater leverage (compared to the bearing assembly 300), and thus increasing the force acting on the armature becomes.
- the bearing sockets are integrated in the anchor body and are designed in the form of two axially arranged, spaced at least partially cylindrical half-shells, so that there is a preferably minimal distance between the two indentations.
- the end face facing the other bearing pan can be spherical or flattened. These can serve to center the bearing in the axial direction.
- the at least partially cylindrical bearing blocks, here elevations 320a and 320b, may be incorporated into a component or element closest to coil 140, for example coil former 328.
- the shape corresponds approximately to an inverted shape of the bearing cups, particularly two at least partially as Half-cylindrical shaped elevations in an axial arrangement with spherical or flattened facing faces.
- the elevations can be flattened on an uppermost surface facing the depressions (thus on the uppermost tangential contact lines or line contacts). This serves to ensure robustness over the tolerance range and prevents large bearing play, since the highest point does not come into contact with the depression. As a result, the bearing is free of play to a certain extent and the components adapt to one another more quickly.
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Power Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid Mechanics (AREA)
- Magnetically Actuated Valves (AREA)
- Electromagnets (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202280082863.0A CN118402024A (zh) | 2021-12-15 | 2022-12-14 | 电磁致动器 |
KR1020247022469A KR20240118835A (ko) | 2021-12-15 | 2022-12-14 | 전자기 액추에이터 |
EP22835431.2A EP4449460A1 (de) | 2021-12-15 | 2022-12-14 | Elektromagnetischer aktuator |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102021133242.7A DE102021133242A1 (de) | 2021-12-15 | 2021-12-15 | Elektromagnetischer Aktuator |
DE102021133242.7 | 2021-12-15 |
Publications (1)
Publication Number | Publication Date |
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WO2023111057A1 true WO2023111057A1 (de) | 2023-06-22 |
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ID=84785396
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2022/085922 WO2023111057A1 (de) | 2021-12-15 | 2022-12-14 | Elektromagnetischer aktuator |
Country Status (5)
Country | Link |
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EP (1) | EP4449460A1 (de) |
KR (1) | KR20240118835A (de) |
CN (1) | CN118402024A (de) |
DE (1) | DE102021133242A1 (de) |
WO (1) | WO2023111057A1 (de) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102014115206B3 (de) | 2014-10-20 | 2016-02-04 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Kippankerventil für ein Druckregelmodul eines Fahrzeugs und Verfahren zum Betreiben eines Kippankerventils |
DE102014115207A1 (de) | 2014-10-20 | 2016-04-21 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Ventildichteinrichtung für ein Kippankerventil und Verfahren zum Herstellen einer Ventildichteinrichtung für ein Kippankerventil |
DE102016105532A1 (de) | 2016-03-24 | 2017-09-28 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Kippankerventil und Verfahren zur Herstellung desselben |
US10024452B2 (en) * | 2014-08-20 | 2018-07-17 | Koganei Corporation | Solenoid valve |
DE102018123997A1 (de) | 2018-09-28 | 2020-04-02 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Als Baueinheit ausgeführtes elektro-pneumatisches Druckregelmodul mit integriertem Inertialsensor |
-
2021
- 2021-12-15 DE DE102021133242.7A patent/DE102021133242A1/de active Pending
-
2022
- 2022-12-14 EP EP22835431.2A patent/EP4449460A1/de active Pending
- 2022-12-14 WO PCT/EP2022/085922 patent/WO2023111057A1/de active Application Filing
- 2022-12-14 KR KR1020247022469A patent/KR20240118835A/ko unknown
- 2022-12-14 CN CN202280082863.0A patent/CN118402024A/zh active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10024452B2 (en) * | 2014-08-20 | 2018-07-17 | Koganei Corporation | Solenoid valve |
DE102014115206B3 (de) | 2014-10-20 | 2016-02-04 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Kippankerventil für ein Druckregelmodul eines Fahrzeugs und Verfahren zum Betreiben eines Kippankerventils |
DE102014115207A1 (de) | 2014-10-20 | 2016-04-21 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Ventildichteinrichtung für ein Kippankerventil und Verfahren zum Herstellen einer Ventildichteinrichtung für ein Kippankerventil |
DE102016105532A1 (de) | 2016-03-24 | 2017-09-28 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Kippankerventil und Verfahren zur Herstellung desselben |
DE102018123997A1 (de) | 2018-09-28 | 2020-04-02 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Als Baueinheit ausgeführtes elektro-pneumatisches Druckregelmodul mit integriertem Inertialsensor |
Also Published As
Publication number | Publication date |
---|---|
KR20240118835A (ko) | 2024-08-05 |
EP4449460A1 (de) | 2024-10-23 |
CN118402024A (zh) | 2024-07-26 |
DE102021133242A1 (de) | 2023-06-15 |
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