EP3408855A1 - Electromagnetic adjusting device and use of such an adjusting device - Google Patents

Electromagnetic adjusting device and use of such an adjusting device

Info

Publication number
EP3408855A1
EP3408855A1 EP17704169.6A EP17704169A EP3408855A1 EP 3408855 A1 EP3408855 A1 EP 3408855A1 EP 17704169 A EP17704169 A EP 17704169A EP 3408855 A1 EP3408855 A1 EP 3408855A1
Authority
EP
European Patent Office
Prior art keywords
actuator
connection unit
tappet
electromagnetic
armature
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.)
Granted
Application number
EP17704169.6A
Other languages
German (de)
French (fr)
Other versions
EP3408855B1 (en
Inventor
Peter Vincon
Thomas Golz
Sebastian Bölling
Philipp FANGAUER
Reinhold Hammer
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.)
ETO Magnetic GmbH
Original Assignee
ETO Magnetic 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 ETO Magnetic GmbH filed Critical ETO Magnetic GmbH
Publication of EP3408855A1 publication Critical patent/EP3408855A1/en
Application granted granted Critical
Publication of EP3408855B1 publication Critical patent/EP3408855B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • H01F7/126—Supporting or mounting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/02—Valve drive
    • F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
    • F01L1/047—Camshafts
    • 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
    • H01F7/128—Encapsulating, encasing or sealing
    • 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
    • H01F7/128—Encapsulating, encasing or sealing
    • H01F7/129—Encapsulating, encasing or sealing of armatures
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/16—Rectilinearly-movable armatures
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/16—Rectilinearly-movable armatures
    • H01F7/1607—Armatures entering the winding
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
    • F01L13/0015—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque
    • F01L13/0036—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque the valves being driven by two or more cams with different shape, size or timing or a single cam profiled in axial and radial direction
    • F01L2013/0052—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque the valves being driven by two or more cams with different shape, size or timing or a single cam profiled in axial and radial direction with cams provided on an axially slidable sleeve
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L2820/00—Details on specific features characterising valve gear arrangements
    • F01L2820/03—Auxiliary actuators
    • F01L2820/031—Electromagnets
    • 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

  • Electromagnetic actuator and use of such
  • the present invention relates to an electromagnetic actuator according to the preamble of the main claim.
  • Electromagnetic actuators in which a plunger-like design and driven in response to an energization of stationary coil means armature unit along an axial direction out of a Aktua- torgereheat out is guided, are well known in the prior art and are used for a variety of control tasks, in particular in a motor vehicle context, used.
  • each of these Aktu ator units separately electrically connect and wire, so that here the constructive and assembly costs is increased.
  • the object of the present invention is therefore to provide a generic electromagnetic actuator with a plurality of each one armature plunger relative to stationary coil means movably having actuator units both in terms of compact, space-saving installation dimensions, as well as insensitivity to installation and fitting tolerances at the installation, especially regarding respective, with engaging ends of the armature plunger cooperating control partners to improve, thereby to realize a device which is equally suitable for mass production and inexpensive to produce.
  • the object is achieved by the electromagnetic actuator with the features of the main claim; advantageous developments of the invention are described in the subclaims. Additional protection within the scope of the invention is claimed for a use of such an electromagnetic adjustment device for the discussed preferred (but not exclusive) use in the context of a camshaft adjustment of an automotive internal combustion engine.
  • the plurality of actuator units are mechanically connected to a bracket and / or bridge-type connection unit of polymeric material, such that the respective actuator housings of the actuator units are activated by action and corresponding to one another predetermined bending property or elasticity of the connecting unit are mutually movable.
  • the connection unit of the polymeric material which may be more preferred and advantageous as a glass fiber reinforced plastic, such as polyamide fiberglass), the effect achieved a tolerance compensation means in the invention.
  • this stirrup or bridge-like connection unit which may also be provided with a predetermined bending angle, to the respectively assigned polymeric actuator housings by way of an automated manufacturing method, this being advantageous both by welding, Bonding or other joining techniques can be carried out, in addition or alternatively by an encapsulation (for example, by inserting such a hanger body in an injection mold during manufacture of the advantageous and further developing itself in turn from sprayable like polymer material realized Aktuatorgehause);
  • an integral connection can be made together with one or more of the actuator housing in the way of production.
  • a particularly suitable and preferred embodiment of the invention provides that the adjusting device has only one connection and plug unit for the control or energization of the plurality of coil means associated with the respective actuator units.
  • the connection and cabling costs are then advantageously reduced, in addition, the bracket or bridge-like connection section can be used in the context of the invention to guide it or therein supply cable (also advantageously protected by embedding) , so that later in the assembly of the electromagnetic actuator according to the invention only a single plug contact to the common connection or plug unit is required.
  • This can also advantageously and according to the invention at the connection unit (connecting portion) sit self-and be prepared for example with this in a manufacturing technology injection molding.
  • connection unit for connecting the at least two actuator units may in principle be arbitrary, it has nevertheless been found to be advantageous to attach this connection unit respectively to a lateral or jacket section of the actuator housing, using the above advantageous (and easily automatable ) Production method.
  • connection unit for connecting the at least two actuator units according to the invention
  • a again particularly preferred development of the invention with regard to practical handling properties during assembly of the device according to the invention at the place of use provides that a pair of adjoining one another of the actuator units are associated with handle, handling or flange sections at each end (front side). These are preferably radially in sections so that handling or actuation is also possible with one hand by an assembly and operator. At the same time, these further preferably flat end sections form a defined upper edge (or surface) of the device, and a further advantageously transverse to the axial direction longitudinal edge of the opposing actuator allows a gap-like spacing design, which visually represents both a concrete distance measure when (tolerant) installation , as well as a Verstellhub the Einzelaktuatoren limited to each other.
  • the present invention is eminently suitable for the tolerant installation conditions of an automotive internal combustion engine, but the present invention is not limited to this use according to the invention. Rather, in principle, the invention is applicable to all actuator structures in which a compact, automated producible and yet flexible usable with regard to installation tolerances arrangement of a plurality of actuator units to be installed.
  • FIG. 1 shows a perspective view of the electromagnetic actuator according to a first embodiment of the invention with two actuator units;
  • FIG. 2 shows a side view of the device according to FIG. 1;
  • FIG. 1 shows a perspective view of the electromagnetic actuator according to a first embodiment of the invention with two actuator units;
  • FIG. 2 shows a side view of the device according to FIG. 1;
  • Fig. 3 is an axially rotated by 90 ° relative to the view of FIG
  • FIG. 4 shows a plan view of the device of the embodiment of FIGS. 1 to 3 from the direction of the common connection and plug unit and a common end face
  • FIG. 5 shows a bottom view in relation to the view of FIG Tilted 180 °, on the device from the outlet side of the respective anchor tappet.
  • Figures 1 to 5 show different views of the electromagnetic see adjusting device of the first and preferred embodiment.
  • a pair of actuator units 10, 12 is connected by a bridge 14 as tolerance compensation means (realized here of glass fiber reinforced polyamide, as well as the material of the actuator housing 1 1, 13 of the Einzelaktuato- ren 10, 12 is selected), so that correspondingly toleranzbehafte- th installation and engagement dimensions for end portions 16 of (in the respective housings 1 1, 13 guided, not shown anchor tappets) a fit or a precise fit to opposite actuators is possible.
  • this adjusting partner each parking grooves are assigned to enable an internal combustion engine camshaft adjustment.
  • the individual actuators 10, 12 are constructed approximately as electromagnetic adjusting devices of the type described in DE 201 14 466 U1, wherein this realization form with armature-side permanent magnets, which then interact with stationary coil means in the housings 11 and 13, is merely exemplary and It is also possible to provide other embodiments of electromagnetic actuating devices which in the manner shown drive out an engagement end 16 of an armature plunger in the manner shown in FIGS. 1 to 3 at the ends from stationary guides 18 of the respective actuators 10, 12.
  • lateral mounting flanges 20, 22 can be seen in the respective representations for a corresponding two-sided mounting, wherein in principle the provision of the bridge 14 according to the invention (connecting unit or connecting section) permits fastening to the overall arrangement shown on only one of these flanges.
  • connection contacts 26 illustrated in particular by the illustrations of FIGS. 1, 3, 4, a plug or socket section integrally molded with the bracket 14 is seated adjacent to the actuator housing 13. Illustrated by way of example are the connection contacts 26 (FIG. 4), as shown in FIG the housings 1 1, 13 contained stationary coils, also separately from each other, energized and thus can be driven to drive the respective armature plunger.
  • FIG. 4 The views of Figures 1, 4 further illustrate how, axially opposite an exit end of the armature tappet engagement portions 16, the assembly on the face of each of the housings 1 1, 13 has planar end portions 26, 28 which are aligned, an end face or, in the side view of Fig. 2, Fig. 3, allow a defined end edge of the device.
  • FIG. 4 it is also clear how these end portions offer grip-like or flange-like projections 30, 32 with respect to the primarily cylindrical housings 11, 13, so that approximately from the direction of FIG. 4 an assembler with one hand grasp securely grasp the arrangement and can use it at the installation site with one hand.
  • the straight edge running through each of the sections 30, 32 - thus, forming a gap between the pair of actuator units in the view of FIG. 4, equally visually illustrates a (then tolerance-related) distance in the installed state.
  • FIG. 3 illustrates an aspect ratio of the bridge (connecting unit 14) compared to an extension of the polymeric part of the housing (here 13): according to the desired stiffness and elasticity properties of (according to FIG. 5) a buckling angle of about 20 ° descriptive) bridge 14 extends in a direction parallel to the axial direction (ie, vertically in the direction of the plane of Fig. 3) only by about about 30% of the total length, so that also takes place here a space optimization

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve Device For Special Equipments (AREA)

Abstract

The invention relates to an electromagnetic adjusting device with a plurality of actuator units (10, 12), each of which has an armature tappet that can be moved relative to stationary coil means along an axial tappet direction when the coil means are energized and each of which is received in paired actuator housings (11, 13) such that when the electromagnetic adjusting device is in the installation and/or assembly state, a respective end portion (16) of the armature tappet can engage with a paired adjusting partner, wherein the plurality of actuator units are mechanically connected to a bracket- and/or bridge-like connection unit (14) made of a polymer material such that the actuator housings can be moved relative to each other under the effect of the connection unit and in accordance with a specified bending property and/or elasticity of the connection unit, in particular on a plane perpendicular to a tappet direction of the armature tappets which are guided in a preferably axially parallel manner.

Description

Elektromagnetische Stellvorrichtung und Verwendung einer solchen  Electromagnetic actuator and use of such
Die vorliegende Erfindung betrifft eine elektromagnetische Stellvorrichtung nach dem Oberbegriff des Hauptanspruchs. The present invention relates to an electromagnetic actuator according to the preamble of the main claim.
Ferner betrifft die vorliegende Erfindung eine Verwendung einer derartigen elektromagnetischen Stellvorrichtung. Elektromagnetische Stellvorrichtungen, bei welchen eine stößelartig ausgebildete und als Reaktion auf eine Bestromung stationärer Spulenmittel antreibbare Ankereinheit entlang einer axialen Richtung aus einem Aktua- torgehäuse herausbewegbar geführt ist, sind aus dem Stand der Technik allgemein bekannt und werden für verschiedenste Stellaufgaben, insbe- sondere auch in einem Kraftfahrzeugkontext, eingesetzt. Furthermore, the present invention relates to a use of such an electromagnetic actuator. Electromagnetic actuators, in which a plunger-like design and driven in response to an energization of stationary coil means armature unit along an axial direction out of a Aktua- torgehäuse out is guided, are well known in the prior art and are used for a variety of control tasks, in particular in a motor vehicle context, used.
Dabei hat sich etwa eine Verwendung derartiger Aktuatoren für eine Nockenwellenverstellung eines Verbrennungsmotors als günstige Verwendung herausgestellt; gattungsgemäße Aktuatoren, bei welchen etwa an- kerseitig Permanentmagneten abstoßend mit den (bestromten) Spulenmitteln zusammenwirken, zeichnen sich durch kurze Schaltzeiten (damit eine hohe Schaltdynamik) und Robustheit und Zuverlässigkeit im Betrieb aus, sind zudem für eine preisgünstige Großserienfertigung geeignet. Gerade jedoch der beschriebene Verwendungsfall der Nockenwellenverstellung benötigt üblicherweise mehr als eine Aktuatoreinheit; der gesteuert in eine Schaltnut (Nutenbahn) einer Nockenwelle zu Verstellzwecken eingreifende Ankerstößel benötigt nämlich im Regelfall mindestens einen zweiten, üblicherweise benachbart vorzusehenden Stößel, um neben ei- ner ersten auch eine zweite entgegengesetzte Bewegung der Nockenwelle bewirken zu können. Diese Technologie ist als solche allgemein be- kannt und wird serienmäßig in Kraftfahrzeugen verwendet. Im Hinblick auf eine Anordnung einer Mehrzahl von Ankerstößeln ist es dabei einerseits bekannt, in einem gemeinsamen Gehäuse diese Stößel (als jeweilige Ankerstößel) benachbart zueinander vorzusehen und geeignet zu betreiben. In this case, for example, a use of such actuators for a camshaft adjustment of an internal combustion engine has proved to be a favorable use; Generic actuators, in which, for example, permanent magnets cooperate repulsively with the (energized) coil means are characterized by short switching times (thus high switching dynamics) and robustness and reliability during operation, and are also suitable for low-cost mass production. However, especially the described use case of the camshaft adjustment usually requires more than one actuator unit; The controlled in a shift groove (groove track) of a camshaft for adjustment engaging anchor tappet usually requires at least a second, usually adjacent to be provided plunger to cause next to a first and a second opposite movement of the camshaft. As such, this technology is generally Known and used as standard in motor vehicles. With regard to an arrangement of a plurality of armature tappets, it is known, on the one hand, to provide these tappets (as respective armature tappets) adjacent to one another in a common housing and to operate them appropriately.
Dies führt jedoch zu großen Gehäusemaßen, wenn Mindest-(eingriffs-) Abstände der Stößelenden sichergestellt werden müssen. Derartige große Gehäuse sind wiederum problematisch beim Einbau unter beengten Platzbedingungen am Motorblock. Auch ist eine solche Anordnung im Hinblick auf an einem Kraftfahrzeug-Verbrennungsmotor unvermeidlich Montage- bzw. Betriebstoleranzen problematisch, denn eine mehrfache Stößelführung in einem gemeinsamen Gehäuse gestattet im Regelfall keinen Toleranzausgleich, wie er etwa für die z.B. thermisch bedingten Passprobleme im Einbaukontext notwendig wäre. However, this leads to large housing dimensions when minimum (intervening) distances of the ram ends must be ensured. Such large housing are again problematic when installing in confined space conditions on the engine block. Also, such an arrangement is problematic in view of installation or operating tolerances which are unavoidable in a motor vehicle internal combustion engine, because a multiple tappet guide in a common housing generally does not allow any tolerance compensation, as is the case, for example, for the e.g. thermally induced passport problems in the installation context would be necessary.
Dagegen bedeutet die Verwendung zweier oder mehrerer diskreter Aktua- toreinheiten nicht nur zusätzlichen Montage- und Verankerungsaufwand für jedes einzelne zugehörige Aktuatorgehäuse, auch ist jede dieser Aktu- atoreinheiten gesondert elektrisch anzuschließen und zu verdrahten, so dass auch hier der konstruktive sowie der Montageaufwand erhöht ist. In contrast, the use of two or more discrete actuator unit not only means additional assembly and anchoring effort for each individual associated actuator housing, also each of these Aktu ator units separately electrically connect and wire, so that here the constructive and assembly costs is increased.
Aufgabe der vorliegenden Erfindung ist es daher, eine gattunsgemäße elektromagnetische Stellvorrichtung mit einer Mehrzahl von jeweils einen Ankerstößel relativ zu stationären Spulenmitteln bewegbar aufweisenden Aktuatoreinheiten sowohl im Hinblick auf kompakte, platzsparende Einbaumaße, als auch eine Unempfindlichkeit gegenüber Einbau- und Passtoleranzen am Einbauort, vor allem betreffend jeweilige, mit Eingriffsenden der Ankerstößel zusammenwirkende Stellpartner, zu verbessern, dabei eine Vorrichtung zu realisieren, welche gleichermaßen großserientauglich und kostengünstig herstellbar ist. Die Aufgabe wird durch die elektromagnetische Stellvorrichtung mit den Merkmalen des Hauptanspruchs gelöst; vorteilhafte Weiterbildungen der Erfindung sind in den Unteransprüchen beschrieben. Zusätzlich Schutz im Rahmen der Erfindung wird beansprucht für eine Verwendung einer derar- tigen elektromagnetischen Versteilvorrichtung für den diskutierten bevorzugten (jedoch nicht ausschließlichen) Verwendungszweck im Rahmen einer Nockenwellenverstellung eines Kraftfahrzeug-Verbrennungsmotors. The object of the present invention is therefore to provide a generic electromagnetic actuator with a plurality of each one armature plunger relative to stationary coil means movably having actuator units both in terms of compact, space-saving installation dimensions, as well as insensitivity to installation and fitting tolerances at the installation, especially regarding respective, with engaging ends of the armature plunger cooperating control partners to improve, thereby to realize a device which is equally suitable for mass production and inexpensive to produce. The object is achieved by the electromagnetic actuator with the features of the main claim; advantageous developments of the invention are described in the subclaims. Additional protection within the scope of the invention is claimed for a use of such an electromagnetic adjustment device for the discussed preferred (but not exclusive) use in the context of a camshaft adjustment of an automotive internal combustion engine.
In erfindungsgemäß vorteilhafter Weise ist die Mehrzahl der Aktuatorein- heiten (wobei ein bevorzugtes Ausführungsbeispiel zwei Aktuatoreinheiten aufweist) mit einer bügel- und/oder brückenartigen Verbindungseinheit aus polymerem Material mechanisch verbunden, so, dass die jeweiligen Aktu- atorgehäuse der Aktuatoreinheiten durch Wirkung und entsprechend einer vorbestimmten Biegeeigenschaft bzw. Elastizität der Verbindungseinheit gegeneinander bewegbar sind. Auf diese Weise ist konstruktiv einfach, hochgradig einbau- und betriebssicher und gleichzeitig flexibel ein Toleranzausgleich ermöglicht, so dass erfindungsgemäß die Verbindungseinheit aus dem polymeren Material (welche weiter bevorzugt und vorteilhaft etwa ein glasfaserverstärkter Kunststoff, etwa Polyamid-GFK, sein kann), die Wirkung eines Toleranzausgleichsmittels im Rahmen der Erfindung erreicht. In an advantageous manner according to the invention, the plurality of actuator units (one preferred embodiment having two actuator units) are mechanically connected to a bracket and / or bridge-type connection unit of polymeric material, such that the respective actuator housings of the actuator units are activated by action and corresponding to one another predetermined bending property or elasticity of the connecting unit are mutually movable. In this way, structurally simple, highly reliable installation and reliable and simultaneously allows a tolerance compensation, so that according to the invention, the connection unit of the polymeric material (which may be more preferred and advantageous as a glass fiber reinforced plastic, such as polyamide fiberglass), the effect achieved a tolerance compensation means in the invention.
Gerade unter fertigungstechnischen Aspekten ist es dabei günstig, diese bügel- bzw. brückenartige Verbindungseinheit, welche weiter bevorzugt auch mit einem vorbestimmten Knickwinkel versehen sein kann, mit den jeweils zugeordneten polymeren Aktuatorgehäusen im Wege eines automatisierten Fertigungsverfahrens zu verbinden, wobei dies vorteilhaft sowohl durch Verschweißen, Verkleben oder andere Fügetechniken erfolgen kann, ergänzend oder alternativ auch durch ein Umspritzen (etwa durch Einlegen eines derartigen Bügelkörpers in ein Spritzgießwerkzeug beim Fertigen der vorteilhaft und weiterbildend selbst wiederum aus spritzfähi- gern Polymermaterial realisiertem Aktuatorgehause); wiederum ergänzend oder alternativ kann auch eine einstückige Verbindung zusammen mit einem oder mehreren der Aktuatorgehäuse im Wege der Fertigung erfolgen. Eine besonders geeignete und bevorzugte Ausführungsform der Erfindung sieht vor, dass die Stellvorrichtung lediglich eine Anschluss- und Steckereinheit für die Ansteuerung bzw. Bestromung der Mehrzahl der den jeweiligen Aktuatoreinheiten zugehörigen Spulenmittel aufweist. Auf diese Weise ist dann vorteilhaft der Anschluss- und Verkabelungsaufwand vermin- dert, zusätzlich lässt sich etwa weiterbildend und vorteilhaft der bügel- bzw. brückenartige Verbindungsabschnitt im Rahmen der Erfindung nutzen, um daran oder darin Zuleitungskabel (etwa auch vorteilhaft durch Einbettung geschützt) zu führen, so dass dann später bei der Montage der erfindungsgemäßen elektromagnetischen Stellvorrichtung lediglich noch ein einziger Steckerkontakt zu der gemeinsamen Anschluss- bzw. Steckereinheit erforderlich ist. Diese kann zudem vorteilhaft und erfindungsgemäß an der Verbindungseinheit (Verbindungsabschnitt) selbst ansitzen und z.B. mit dieser in einem herstellungstechnischen Spritzverfahren hergestellt werden. Especially under production-technical aspects, it is favorable to connect this stirrup or bridge-like connection unit, which may also be provided with a predetermined bending angle, to the respectively assigned polymeric actuator housings by way of an automated manufacturing method, this being advantageous both by welding, Bonding or other joining techniques can be carried out, in addition or alternatively by an encapsulation (for example, by inserting such a hanger body in an injection mold during manufacture of the advantageous and further developing itself in turn from sprayable like polymer material realized Aktuatorgehause); In turn, in addition or alternatively, an integral connection can be made together with one or more of the actuator housing in the way of production. A particularly suitable and preferred embodiment of the invention provides that the adjusting device has only one connection and plug unit for the control or energization of the plurality of coil means associated with the respective actuator units. In this way, the connection and cabling costs are then advantageously reduced, in addition, the bracket or bridge-like connection section can be used in the context of the invention to guide it or therein supply cable (also advantageously protected by embedding) , so that later in the assembly of the electromagnetic actuator according to the invention only a single plug contact to the common connection or plug unit is required. This can also advantageously and according to the invention at the connection unit (connecting portion) sit self-and be prepared for example with this in a manufacturing technology injection molding.
Während die geometrische Realisierung der Verbindungseinheit zur erfindungsgemäßen Verbindung der mindestens zwei Aktuatoreinheiten prinzipiell beliebig sein kann, hat es sich gleichwohl als vorteilhaft herausgestellt, diese Verbindungseinheit jeweils an einem seitlichen bzw. Mantel- abschnitt der Aktuatorgehäuse anzusetzen, unter Nutzung der vorbeschriebenen vorteilhaften (und gut automatisierbaren) Herstellungsverfahren. Abhängig von einem verwendeten Material und den geometrischen sowie Elastizitätsbedingungen hat es sich dabei als bevorzugt herausgestellt, eine axiale Erstreckung eines solchen bügel- bzw. bogenartigen Ab- Schnitts, bezogen auf eine gleichermaßen axiale Erstreckung der damit verbundenen Gehäuse, auf nicht mehr als 40% zu wählen, bevorzugt kann diese Erstreckung auch geringer, bis zu weniger als 20%, betragen. Eine wiederum besonders bevorzugte Weiterbildung der Erfindung im Hinblick auf praktische Handhabungseigenschaften bei einer Montage der erfindungsgemäßen Vorrichtung am Einsatzort sieht vor, dass einem Paar einander benachbarter der Aktuatoreinheiten jeweils endseitig (stirnseitig) Griff-, Handhabungs- bzw. Flanschabschnitte zugeordnet sind. Diese stehen bevorzugt abschnittsweise radial vor, so dass eine Handhabung bzw. Betätigung auch mit einer Hand durch eine Montage- und Bedienperson ermöglicht ist. Gleichzeitig bilden diese weiter bevorzugt endseitig plan ausgebildeten Abschnitte eine definierte Oberkante (bzw. Oberfläche) der Vorrichtung, und eine weiter vorteilhaft quer zur axialen Richtung verlaufende Längskante der gegenüberstehenden Aktuatorgehäuse ermöglicht eine spaltartige Abstandsgestaltung, welche sowohl visuell ein konkretes Abstandsmaß beim (toleranzbehafteten) Einbau wiedergibt, als auch ei- nen Verstellhub der Einzelaktuatoren zueinander begrenzt. While the geometric realization of the connection unit for connecting the at least two actuator units according to the invention may in principle be arbitrary, it has nevertheless been found to be advantageous to attach this connection unit respectively to a lateral or jacket section of the actuator housing, using the above advantageous (and easily automatable ) Production method. Depending on a material used and the geometric and elasticity conditions, it has proven to be preferable to have an axial extent of such a bow-shaped or arc-like section, based on an equally axial extent of the associated housing, to not more than 40% choose, preferably This extension may also be less, up to less than 20%. A again particularly preferred development of the invention with regard to practical handling properties during assembly of the device according to the invention at the place of use provides that a pair of adjoining one another of the actuator units are associated with handle, handling or flange sections at each end (front side). These are preferably radially in sections so that handling or actuation is also possible with one hand by an assembly and operator. At the same time, these further preferably flat end sections form a defined upper edge (or surface) of the device, and a further advantageously transverse to the axial direction longitudinal edge of the opposing actuator allows a gap-like spacing design, which visually represents both a concrete distance measure when (tolerant) installation , as well as a Verstellhub the Einzelaktuatoren limited to each other.
Im Ergebnis eignet sich die vorliegende Erfindung dann in herausragender Weise für die toleranzbehafteten Einbaubedingungen an einem Kraftfahrzeug-Verbrennungsmotor, die vorliegende Erfindung ist jedoch nicht auf diese erfindungsgemäße Verwendung beschränkt. Vielmehr ist grundsätzlich die Erfindung auf sämtliche Aktuatorstrukturen anwendbar, bei welchen eine kompakte, automatisiert herstellbare und gleichwohl flexibel im Hinblick auf Einbautoleranzen einsetzbare Anordnung aus einer Mehrzahl von Aktuatoreinheiten verbaut werden soll. As a result, the present invention is eminently suitable for the tolerant installation conditions of an automotive internal combustion engine, but the present invention is not limited to this use according to the invention. Rather, in principle, the invention is applicable to all actuator structures in which a compact, automated producible and yet flexible usable with regard to installation tolerances arrangement of a plurality of actuator units to be installed.
Weitere Vorteile, Merkmale und Einzelheiten der Erfindung ergeben sich aus der nachfolgenden Beschreibung bevorzugter Ausführungsbeispiele sowie anhand der Zeichnungen; diese zeigen in: eine Perspektivansicht auf die elektromagnetische Stellvorrichtung gemäß einem ersten Ausführungsbeispiel der Erfindung mit zwei Aktuatoreinheiten; Fig. 2 eine Seitenansicht auf die Vorrichtung gemäß Fig. 1 ; Further advantages, features and details of the invention will become apparent from the following description of preferred embodiments and from the drawings; these show in: a perspective view of the electromagnetic actuator according to a first embodiment of the invention with two actuator units; FIG. 2 shows a side view of the device according to FIG. 1; FIG.
Fig. 3 eine axial um 90° gegenüber der Ansicht der Fig. 2 gedrehte Fig. 3 is an axially rotated by 90 ° relative to the view of FIG
Seitenansicht, Fig. 4 eine Draufsicht auf die Vorrichtung des Ausführungsbeispiels der Fig. 1 bis Fig. 3 aus der Richtung der gemeinsamen An- schluss- und Steckereinheit sowie einer gemeinsamen Endfläche, und Fig. 5 eine Unteransicht gegenüber der Ansicht der Fig. 4 um 180° gekippt, auf die Vorrichtung aus der Austrittsseite der jeweiligen Ankerstößel.  4 shows a plan view of the device of the embodiment of FIGS. 1 to 3 from the direction of the common connection and plug unit and a common end face, and FIG. 5 shows a bottom view in relation to the view of FIG Tilted 180 °, on the device from the outlet side of the respective anchor tappet.
Die Figuren 1 bis 5 zeigen verschiedene Ansichten der elektromagneti- sehen Stellvorrichtung des ersten und bevorzugten Ausführungsbeispiels. Ein Paar von Aktuatoreinheiten 10, 12 ist dabei durch eine Brücke 14 als Toleranzausgleichsmittel (hier realisiert aus glasfaserverstärktem Polyamid, wie auch das Material der Aktuatorgehäuse 1 1 , 13 der Einzelaktuato- ren 10, 12 gewählt ist) verbunden, so, dass entsprechend toleranzbehafte- ten Einbau- und Eingriffsmaßen für Endabschnitte 16 von (in den jeweiligen Gehäusen 1 1 , 13 geführten, nicht gezeigten Ankerstößeln) eine Passung bzw. ein passgenauer Zugriff auf gegenüberliegende Stellpartner ermöglicht ist. Im beschriebenen Einbaukontext sind diesem Stellpartner jeweils Stellnuten zum Ermöglichen einer Verbrennungsmotor- Nockenwellenverstellung zugeordnet. Die Einzelaktuatoren 10, 12 sind etwa als elektromagnetische Stellvorrichtungen der in der DE 201 14 466 U1 beschriebenen Art aufgebaut, wobei diese Realisierungsform mit ankerseitigen Permanentmagneten, welche dann mit stationären Spulenmitteln in den Gehäusen 1 1 bzw. 13 zusam- menwirken, lediglich exemplarisch ist und auch andere Realisierungsformen von elektromagnetischen Stellvorrichtungen vorgesehen sein können, welche in der gezeigten Weise ein Eingriffsende 16 eines Ankerstößels in der etwa in den Figuren 1 bis 3 gezeigten Art endseitig aus stationären Führungen 18 der jeweiligen Aktuatoren 10, 12 gesteuert heraus- treiben. Figures 1 to 5 show different views of the electromagnetic see adjusting device of the first and preferred embodiment. A pair of actuator units 10, 12 is connected by a bridge 14 as tolerance compensation means (realized here of glass fiber reinforced polyamide, as well as the material of the actuator housing 1 1, 13 of the Einzelaktuato- ren 10, 12 is selected), so that correspondingly toleranzbehafte- th installation and engagement dimensions for end portions 16 of (in the respective housings 1 1, 13 guided, not shown anchor tappets) a fit or a precise fit to opposite actuators is possible. In the described installation context, this adjusting partner each parking grooves are assigned to enable an internal combustion engine camshaft adjustment. The individual actuators 10, 12 are constructed approximately as electromagnetic adjusting devices of the type described in DE 201 14 466 U1, wherein this realization form with armature-side permanent magnets, which then interact with stationary coil means in the housings 11 and 13, is merely exemplary and It is also possible to provide other embodiments of electromagnetic actuating devices which in the manner shown drive out an engagement end 16 of an armature plunger in the manner shown in FIGS. 1 to 3 at the ends from stationary guides 18 of the respective actuators 10, 12.
Zusätzlich erkennbar sind in den jeweiligen Darstellungen seitliche Montageflansche 20, 22, für eine entsprechend beidseitige Montage, wobei prinzipiell das Vorsehen der erfindungsgemäßen Brücke 14 (Verbindungsein- heit bzw. Verbindungsabschnitt) das Befestigen an der gezeigten Gesamtanordnung an lediglich einem dieser Flansche gestattet. In addition, lateral mounting flanges 20, 22 can be seen in the respective representations for a corresponding two-sided mounting, wherein in principle the provision of the bridge 14 according to the invention (connecting unit or connecting section) permits fastening to the overall arrangement shown on only one of these flanges.
Wie insbesondere die Darstellungen der Figuren 1 , 3, 4 verdeutlichen, sitzt benachbart des Aktuatorgehäuses 13 ein einstückig mit dem Bügel 14 gespritzter Stecker- bzw. Buchsenabschnitt 24. Exemplarisch gezeigte Anschlusskontakte 26 (Fig. 4) verdeutlichen, wie über diesen Anschluss die jeweils in den Gehäusen 1 1 , 13 enthaltenen stationären Spulen, auch separat voneinander, bestromt und damit zum Antreiben der jeweiligen Ankerstößel angesteuert werden können. As illustrated in particular by the illustrations of FIGS. 1, 3, 4, a plug or socket section integrally molded with the bracket 14 is seated adjacent to the actuator housing 13. Illustrated by way of example are the connection contacts 26 (FIG. 4), as shown in FIG the housings 1 1, 13 contained stationary coils, also separately from each other, energized and thus can be driven to drive the respective armature plunger.
Die Ansichten der Figuren 1 , 4 verdeutlichen ferner, wie, axial gegenüberliegend einem Austrittsende der Ankerstößel-Eingriffsbereiche 16, die Anordnung auf der Stirnseite eines jeweiligen der Gehäuse 1 1 , 13 plane Endabschnitte 26, 28 aufweist, welche, fluchtend, eine Endfläche oder, in der Seitenansicht von Fig. 2, Fig. 3, eine definierte Endkante der Vorrichtung ermöglichen. In der Draufsicht (Fig. 4) wird zudem deutlich, wie diese Endabschnitte griffartige bzw. flanschartige Vorsprünge 30, 32 gegenüber den primär zylindrischen Gehäusen 1 1 , 13 anbieten, so dass etwa aus der Richtung der Fig. 4 eine Montageperson mit einer Hand griffsicher die Anordnung fassen und etwa am Montageort mit einer Hand einsetzen kann. Die durch die jeweils zwischen den Abschnitten 30, 32 verlaufende gerade Kante - damit, in der Ansicht der Fig. 4, einen Spalt zwischen dem Paar von Aktu- atoreinheiten ausbildend, verdeutlicht gleichermaßen visuell einen (dann toleranzbehafteten) Abstand im Einbauzustand. The views of Figures 1, 4 further illustrate how, axially opposite an exit end of the armature tappet engagement portions 16, the assembly on the face of each of the housings 1 1, 13 has planar end portions 26, 28 which are aligned, an end face or, in the side view of Fig. 2, Fig. 3, allow a defined end edge of the device. In the plan view (FIG. 4) it is also clear how these end portions offer grip-like or flange-like projections 30, 32 with respect to the primarily cylindrical housings 11, 13, so that approximately from the direction of FIG. 4 an assembler with one hand grasp securely grasp the arrangement and can use it at the installation site with one hand. The straight edge running through each of the sections 30, 32 - thus, forming a gap between the pair of actuator units in the view of FIG. 4, equally visually illustrates a (then tolerance-related) distance in the installed state.
Die Seitenansicht insbesondere der Fig. 3 verdeutlicht ein Dimensionsverhältnis der Brücke (Verbindungseinheit 14) gegenüber eine Streckung des polymeren Teils des Gehäuses (hier 13): Entsprechend den gewünschten Steifigkeits- und Elastizitätseigenschaften der (gemäß Fig. 5 einen Knick- winkel um etwa 20° beschreibenden) Brücke 14 erstreckt sich diese in eine Richtung parallel zur axialen Richtung (d.h. vertikal in Richtung der Figurenebene der Fig. 3) nur um etwa ca. 30% der Gesamtlänge, so dass auch hier eine Bauraumoptimierung stattfindet The side view in particular of FIG. 3 illustrates an aspect ratio of the bridge (connecting unit 14) compared to an extension of the polymeric part of the housing (here 13): according to the desired stiffness and elasticity properties of (according to FIG. 5) a buckling angle of about 20 ° descriptive) bridge 14 extends in a direction parallel to the axial direction (ie, vertically in the direction of the plane of Fig. 3) only by about about 30% of the total length, so that also takes place here a space optimization

Claims

Elektromagnetische Stellvorrichtung mit Electromagnetic actuator with
einer Mehrzahl von jeweils einen Ankerstößel relativ zu stationären Spulenmitteln auf eine Bestromung derselben entlang einer axialen Stößelrichtung bewegbar aufweisenden Aktuatoreinheiten (10, 12), die in jeweils zugeordneten Aktuatorgehäusen (1 1 , 1 3) so aufgenommen sind, dass in einem Einbau- und/oder Montagezustand der elektromagnetischen Stellvorrichtung ein jeweiliger Endabschnitt (16) der Ankerstößel mit einem zuordnebaren Stellpartner gesteuert in Eingriff treten kann, a plurality of in each case one armature plunger relative to stationary coil means on an energization of the same along an axial ram direction movably having actuator units (10, 12) which are accommodated in respectively associated actuator housings (1 1, 1 3) so that in an installation and / or mounting state of the electromagnetic actuating device, a respective end section (16) of the armature tappet can be controlled with an assignable actuating partner,
dadurch gekennzeichnet, characterized,
dass die Mehrzahl der Aktuatoreinheiten mit einer bügel- und/oder brückenartigen Verbindungseinheit (14) aus polymerem Material so mechanisch verbunden ist, the plurality of actuator units are mechanically connected to a temple and / or bridge-like connection unit (14) of polymeric material,
dass die Aktuatorgehause durch Wirkung und entsprechend einer vorbestimmten Biegeeigenschaft und/oder Elastizität der Verbindungseinheit gegeneinander bewegbar sind, insbesondere in einer einer Ebene senkrecht zu einer Stößelrichtung der weiter bevorzugt zueinander achsparallel geführten Ankerstößel. the actuator housing can be moved relative to one another by action and according to a predetermined bending property and / or elasticity of the connection unit, in particular in an armature tappet guided axially parallel to a tappet direction of a tappet direction.
Vorrichtung nach Anspruch 1 , Device according to claim 1,
dadurch gekennzeichnet, characterized,
dass die Verbindungseinheit mit den polymeren Aktuatorgehäusen durch Verschweißen, Verkleben, Umspritzen oder als mit zumin- destens einem der Aktuatorgehäuse einstückig realisierte Baugruppe verbunden ist. Vorrichtung nach Anspruch 1 oder 2, in that the connection unit is connected to the polymeric actuator housings by welding, adhesive bonding, encapsulation or as an assembly realized in one piece with at least one of the actuator housings. Apparatus according to claim 1 or 2,
gekennzeichnet durch, marked by,
eine für die Bestromung der Spulenmittel der Mehrzahl der Aktuato- reinheiten gemeinsam vorgesehene Anschluss- und/oder Steckereinheit (24), die bevorzugt aus polymerem Material realisiert ist. one for the energization of the coil means of the plurality of Aktuato- units together provided connection and / or plug unit (24), which is preferably realized from polymeric material.
Vorrichtung nach Anspruch 3, Device according to claim 3,
dadurch gekennzeichnet, characterized,
dass die Anschluss- bzw. Steckereinheit (24) an der Verbindungseinheit (14) bevorzugt einstückig ansitzt. in that the connection or plug unit (24) preferably fits integrally on the connection unit (14).
Vorrichtung nach einem der Ansprüche 1 bis 4, Device according to one of claims 1 to 4,
dadurch gekennzeichnet, characterized,
dass die Verbindungseinheit so ausgebildet ist, dass elektrische Zuleitungen für die Bestromung der Spulenmittel zumindest abschnittsweise in der oder durch die Verbindungseinheit (14) laufen. in that the connection unit is designed in such a way that electrical supply lines for the energization of the coil means run at least in sections in or through the connection unit (14).
Vorrichtung nach einem der Ansprüche 1 bis 5, Device according to one of claims 1 to 5,
dadurch gekennzeichnet, characterized,
dass die Verbindungseinheit jeweils an einem seitlichen und/oder einem Mantelabschnitt der Aktuatorgehäuse, bevorzugt unlösbar angreift that the connecting unit engages in each case on a lateral and / or a jacket portion of the actuator housing, preferably inextricably
und/oder eine Erstreckung parallel zur axialen Stellrichtung aufweist, die weniger als 50%, bevorzugt weniger als 30%, weiter bevorzugt weniger als 20%, einer minimalen Erstreckung eines der Aktuatorgehäuse parallel zur axialen Stellrichtung aufweist. Vorrichtung nach einem der Ansprüche 1 bis 6, and / or an extension parallel to the axial direction of adjustment, which has less than 50%, preferably less than 30%, more preferably less than 20%, of a minimum extent of the actuator housing parallel to the axial direction of adjustment. Device according to one of claims 1 to 6,
dadurch gekennzeichnet, characterized,
dass einem Paar einander benachbarter der Aktuatoreinheiten, insbesondere an einem einem Stößelaustrittsende gegenüberliegenden Stirnbereich jeweiliger der Aktuatorgehäuse, Griff-, Handha- bungs- und/oder Flanschabschnitte (30, 32) so zugeordnet sind, dass diese einen Mindestabstand der Aktuatoreinheiten, insbesondere als zumindest abschnittsweise parallel verlaufenden Abstandsspalt, definieren und eine manuelle Handhabung der Stellvorrichtung durch Zugriff mit einer Hand ermöglichen. in that a pair of adjoining one of the actuator units, in particular on an end region of the actuator housing, handle, handling and / or flange sections (30, 32), are assigned such that they have a minimum distance of the actuator units, in particular as at least sections parallel spacing gap, define and allow manual handling of the actuator by access with one hand.
Vorrichtung nach Anspruch 7, Device according to claim 7,
dadurch gekennzeichnet, characterized,
dass die Griff-, Handhabungs- bzw. Flanschabschnitte (30, 32) als einstückig an ein jeweiliges der Aktuatorgehäuse angeformter, flacher und radial von dem Aktuatorgehäuse vorspringender Flanschabschnitt ausgestaltet sind. in that the handle, handling or flange sections (30, 32) are designed as a flange section integrally formed on a respective one of the actuator housings, flat and radially projecting from the actuator housing.
Vorrichtung nach Anspruch 7 oder 8, Device according to claim 7 or 8,
dadurch gekennzeichnet, characterized,
dass die Griff-, Handhabungs- bzw. Flanschabschnitte (30, 32) mit einer jeweiligen endseitigen Flachseite eine gemeinsame Endfläche der elektromagnetischen Stellvorrichtung bestimmen. in that the grip, handling or flange sections (30, 32) with a respective end-side flat side determine a common end face of the electromagnetic positioning device.
Verwendung der elektromagnetischen Stellvorrichtung nach einem der Ansprüche 1 bis 9, zur Montage an einem Verbrennungsmotor eines Kraftfahrzeugs zu dessen Nockenwellenverstellung. Use of the electromagnetic actuator according to one of claims 1 to 9, for mounting on an internal combustion engine of a motor vehicle for its camshaft adjustment.
EP17704169.6A 2016-01-25 2017-01-20 Electromagnetic actuating device and use thereof Active EP3408855B1 (en)

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DE20114466U1 (en) 2001-09-01 2002-01-03 Eto Magnetic Kg Electromagnetic actuator
DE102006059188A1 (en) * 2006-12-15 2008-06-19 Schaeffler Kg Actuator for positioning an actuator of a variable valve train of an internal combustion engine
DE102007028600B4 (en) * 2007-06-19 2011-06-22 ETO MAGNETIC GmbH, 78333 Electromagnetic actuator
DE102011009327B4 (en) * 2011-01-18 2012-09-27 Hydac Electronic Gmbh Electromagnetic actuator
FR2990465B1 (en) * 2012-05-14 2016-01-15 Valeo Sys Controle Moteur Sas MULTIPLE VALVE LIFTING ASSEMBLY
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