EP3408855B1 - Electromagnetic actuating device and use thereof - Google Patents

Electromagnetic actuating device and use thereof Download PDF

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Publication number
EP3408855B1
EP3408855B1 EP17704169.6A EP17704169A EP3408855B1 EP 3408855 B1 EP3408855 B1 EP 3408855B1 EP 17704169 A EP17704169 A EP 17704169A EP 3408855 B1 EP3408855 B1 EP 3408855B1
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EP
European Patent Office
Prior art keywords
actuator
connection unit
positioning device
housings
manner
Prior art date
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Application number
EP17704169.6A
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German (de)
French (fr)
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EP3408855A1 (en
Inventor
Peter Vincon
Thomas Golz
Sebastian Bölling
Philipp FANGAUER
Reinhold Hammer
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ETO Magnetic GmbH
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ETO Magnetic GmbH
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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

  • the present invention relates to an electromagnetic actuating device according to the preamble of the main claim.
  • the present invention further relates to the use of such an electromagnetic actuating device.
  • Electromagnetic actuating devices in which an armature unit which is designed in the manner of a plunger and can be driven in response to an energization of stationary coil means, can be moved out of an actuator housing along an axial direction, are generally known from the prior art and are used for a wide variety of actuating tasks, in particular also in a motor vehicle context ,
  • camshaft adjustment usually requires more than one actuator unit;
  • the armature tappet which engages in a switching groove (groove track) of a camshaft for adjustment purposes, as a rule requires at least one second, usually adjacent tappet, in order to be able to bring about a second and opposite movement of the camshaft in addition to the first.
  • This technology is generally known as such and is used as standard in motor vehicles.
  • anchor tappets it is known on the one hand to provide these tappets in a common housing (as respective anchor tappets) adjacent to one another and to operate them appropriately.
  • each of these actuator units also has to be separately electrically connected and wired, so that the construction and assembly effort is increased here as well.
  • the prior art of the generic type is that which discloses an electromagnetic actuating device DE 10 2012 018095 A1 , wherein a plurality of actuator units is mechanically connected to one another by a flexible film hinge.
  • Other electromagnetic actuators are off DE 20 2008 008 142 U1 and DE 201 14 466 U1 known.
  • the majority of the actuator units are mechanically connected to a bracket-like and / or bridge-like connecting unit made of polymeric material, so that the respective actuator housings of the actuator units are effective and corresponding to a predetermined bending property or Elasticity of the connecting unit are movable against each other.
  • the connecting unit made of the polymeric material which can be more preferably and advantageously, for example, a glass fiber reinforced plastic, such as polyamide-GRP), the effect a tolerance compensation means achieved within the scope of the invention.
  • bracket-type or bridge-type connection unit which can also preferably be provided with a predetermined articulation angle, to the respectively assigned polymer actuator housings by means of an automated production process, this advantageously being achieved both by welding, Gluing or other joining techniques can take place, in addition or alternatively also by overmolding (for example by inserting such a bracket body into an injection mold when manufacturing the advantageous and further developing itself from injectable Actuator housing made of polymer material); in addition or alternatively, a one-piece connection can also be made together with one or more of the actuator housings by way of production.
  • the actuating device has only one connection and plug unit for controlling or energizing the plurality of the coil means associated with the respective actuator units.
  • the connection and cabling effort is advantageously reduced
  • the bracket-like or bridge-like connecting section can be used in a further development and advantageously in the context of the invention in order to lead supply cables thereon or therein (for example also advantageously protected by embedding), so that later, when assembling the electromagnetic actuating device 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 sit on the connection unit (connection section) itself and e.g. can be produced with this in a technical injection molding process.
  • connection unit for connecting the at least two actuator units according to the invention can in principle be arbitrary, it has nevertheless turned out to be advantageous to attach this connection unit to a lateral or jacket section of the actuator housing, respectively, using the advantageous (and easily automatable) manufacturing methods described above , Depending on the material used and the geometric and elasticity conditions, it has turned out to be preferred to choose an axial extension of such a bow-shaped or arch-like section, based on an equally axial extension of the associated housing, to not more than 40%, prefers this extension can also be less, up to less than 20%.
  • a further particularly preferred development of the invention with regard to practical handling properties when the device according to the invention is installed at the place of use provides that a pair of mutually adjacent actuator units are each assigned end, front, handle, handling or flange sections. These preferably protrude radially in sections, so that handling or actuation is also possible with one hand by an assembly and operating person.
  • these sections which are preferably planar at the end, form a defined upper edge (or surface) of the device, and a longitudinal edge of the opposing actuator housings, which further advantageously extends transversely to the axial direction, enables a gap-like spacing design which both visually reflects a specific spacing dimension during (tolerance-laden) installation , and also limited an adjustment stroke of the individual actuators to one another.
  • the present invention is outstandingly suitable for the installation conditions on a motor vehicle internal combustion engine which are subject to tolerances, but the present invention is not restricted to this use according to the invention. Rather, the invention is fundamentally applicable to all actuator structures in which a compact, automatable, yet flexible arrangement with a plurality of actuator units can be installed with regard to installation tolerances.
  • FIGS. 1 to 5 show different views of the electromagnetic actuator of the first and preferred embodiment.
  • a pair of actuator units 10, 12 is connected by a bridge 14 as a tolerance compensation means (realized here from glass fiber reinforced polyamide, as is the material of the actuator housings 11, 13 of the individual actuators 10, 12), so that correspondingly tolerant installation and engagement dimensions for end sections 16 of (anchor plungers, not shown, which are guided in the respective housings 11, 13) a fit or a precisely fitting access to opposite actuating partners is made possible.
  • actuating grooves are assigned to this actuating partner to enable internal combustion engine camshaft adjustment.
  • the individual actuators 10, 12 are approximately as electromagnetic actuating devices in the DE 201 14 466 U1 described type, this implementation with armature-side permanent magnets, which then interact with stationary coil means in the housings 11 and 13, is only exemplary and other implementation forms of electromagnetic actuating devices can be provided, which in the manner shown an engagement end 16 of an armature plunger in the about in the Figures 1 to 3 shown type drive out from the end of stationary guides 18 of the respective actuators 10, 12 in a controlled manner.
  • lateral mounting flanges 20, 22 can be seen in the respective representations, for a correspondingly two-sided mounting, the provision of the bridge 14 according to the invention (connecting unit or connecting section) in principle allowing attachment to the overall arrangement shown on only one of these flanges.
  • FIG. 4 illustrate how this connection can be used to energize the stationary coils contained in the housings 11, 13, also separately from one another, and thus to drive the respective armature plungers.
  • FIGS. 1, 4 further illustrate how, axially opposite an outlet end of the armature tappet engagement areas 16, the arrangement on the end face of each of the housings 11, 13 has flat end sections 26, 28 which, in alignment, have an end face or, in the side view of FIG 2, 3 , enable a defined end edge of the device.
  • the side view in particular the Fig. 3 illustrates a dimensional ratio of the bridge (connecting unit 14) to an extension of the polymeric part of the housing (here 13): according to the desired stiffness and elasticity properties of the (according to Fig. 5

Description

Die vorliegende Erfindung betrifft eine elektromagnetische Stellvorrichtung nach dem Oberbegriff des Hauptanspruchs.The present invention relates to an electromagnetic actuating device according to the preamble of the main claim.

Ferner betrifft die vorliegende Erfindung eine Verwendung einer derartigen elektromagnetischen Stellvorrichtung.The present invention further relates to the use of such an electromagnetic actuating device.

Elektromagnetische Stellvorrichtungen, bei welchen eine stößelartig ausgebildete und als Reaktion auf eine Bestromung stationärer Spulenmittel antreibbare Ankereinheit entlang einer axialen Richtung aus einem Aktuatorgehäuse herausbewegbar geführt ist, sind aus dem Stand der Technik allgemein bekannt und werden für verschiedenste Stellaufgaben, insbesondere auch in einem Kraftfahrzeugkontext, eingesetzt.Electromagnetic actuating devices, in which an armature unit which is designed in the manner of a plunger and can be driven in response to an energization of stationary coil means, can be moved out of an actuator housing along an axial direction, are generally known from the prior art and are used for a wide variety of actuating tasks, in particular also in a motor vehicle context ,

Dabei hat sich etwa eine Verwendung derartiger Aktuatoren für eine Nockenwellenverstellung eines Verbrennungsmotors als günstige Verwendung herausgestellt; gattungsgemäße Aktuatoren, bei welchen etwa ankerseitig 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.The use of such actuators for camshaft adjustment of an internal combustion engine has proven to be a favorable use; Generic actuators, in which permanent magnets, for example, interact repulsively with the (energized) coil means on the armature, are characterized by short switching times (thus high switching dynamics) and robustness and reliability in operation, and are also suitable for inexpensive large-scale production.

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 einer ersten auch eine zweite entgegengesetzte Bewegung der Nockenwelle bewirken zu können. Diese Technologie ist als solche allgemein bekannt 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.However, the described use case of camshaft adjustment usually requires more than one actuator unit; The armature tappet, which engages in a switching groove (groove track) of a camshaft for adjustment purposes, as a rule requires at least one second, usually adjacent tappet, in order to be able to bring about a second and opposite movement of the camshaft in addition to the first. This technology is generally known as such and is used as standard in motor vehicles. With regard to an arrangement of a plurality of anchor tappets, it is known on the one hand to provide these tappets in a common housing (as respective anchor tappets) adjacent to one another 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 if minimum (engagement) distances between the tappet ends must be ensured. Such large housings are in turn problematic when installing in confined spaces on the engine block. Such an arrangement is also problematic with regard to assembly or operating tolerances that are inevitable on a motor vehicle internal combustion engine, since multiple tappet guidance in a common housing generally does not permit tolerance compensation, as is the case for e.g. thermal fitting problems in the installation context would be necessary.

Dagegen bedeutet die Verwendung zweier oder mehrerer diskreter Aktuatoreinheiten nicht nur zusätzlichen Montage- und Verankerungsaufwand für jedes einzelne zugehörige Aktuatorgehäuse, auch ist jede dieser Aktuatoreinheiten gesondert elektrisch anzuschließen und zu verdrahten, so dass auch hier der konstruktive sowie der Montageaufwand erhöht ist. Gattungsbildender Stand der Technik bildet die eine elektromagnetische Stellvorrichtung offenbarende DE 10 2012 018095 A1 , wobei eine Mehrzahl von Aktuatoreinheiten durch ein biegeschlaffes Filmscharnier mechanisch miteinander verbunden ist. Weitere elektromagnetische Stellvorrichtungen sind aus DE 20 2008 008 142 U1 und DE 201 14 466 U1 bekannt.In contrast, the use of two or more discrete actuator units not only means additional assembly and anchoring effort for each individual associated actuator housing, each of these actuator units also has to be separately electrically connected and wired, so that the construction and assembly effort is increased here as well. The prior art of the generic type is that which discloses an electromagnetic actuating device DE 10 2012 018095 A1 , wherein a plurality of actuator units is mechanically connected to one another by a flexible film hinge. Other electromagnetic actuators are off DE 20 2008 008 142 U1 and DE 201 14 466 U1 known.

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.It is therefore an object of the present invention to provide a generic electromagnetic actuating device with a plurality of actuator units each having an armature tappet movable relative to stationary coil means, both with regard to compact, space-saving installation dimensions and insensitivity to installation and fit tolerances to improve at the installation site, especially with regard to the respective actuating partners interacting with the engaging ends of the armature plungers, to implement a device which is equally suitable for mass production and inexpensive to produce.

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 derartigen elektromagnetischen Verstellvorrichtung für den diskutierten bevorzugten (jedoch nicht ausschließlichen) Verwendungszweck im Rahmen einer Nockenwellenverstellung eines Kraftfahrzeug-Verbrennungsmotors.The object is achieved by the electromagnetic actuating device 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 the use of such an electromagnetic adjusting device for the preferred (but not exclusive) use discussed in the context of a camshaft adjustment of a motor vehicle internal combustion engine.

In erfindungsgemäß vorteilhafter Weise ist die Mehrzahl der Aktuatoreinheiten (wobei ein bevorzugtes Ausführungsbeispiel zwei Aktuatoreinheiten aufweist) mit einer bügel- und/oder brückenartigen Verbindungseinheit aus polymerem Material mechanisch verbunden, so, dass die jeweiligen Aktuatorgehäuse 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 majority of the actuator units (a preferred exemplary embodiment has two actuator units) are mechanically connected to a bracket-like and / or bridge-like connecting unit made of polymeric material, so that the respective actuator housings of the actuator units are effective and corresponding to a predetermined bending property or Elasticity of the connecting unit are movable against each other. In this way, a structurally simple, highly installation-safe and operationally reliable and at the same time flexible tolerance compensation is made possible, so that, according to the invention, the connecting unit made of the polymeric material (which can be more preferably and advantageously, for example, a glass fiber reinforced plastic, such as polyamide-GRP), the effect a tolerance compensation means achieved within the scope of 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 spritzfähigem Polymermaterial realisiertem Aktuatorgehäuse); wiederum ergänzend oder alternativ kann auch eine einstückige Verbindung zusammen mit einem oder mehreren der Aktuatorgehäuse im Wege der Fertigung erfolgen.Particularly from the point of view of production technology, it is advantageous to connect this bracket-type or bridge-type connection unit, which can also preferably be provided with a predetermined articulation angle, to the respectively assigned polymer actuator housings by means of an automated production process, this advantageously being achieved both by welding, Gluing or other joining techniques can take place, in addition or alternatively also by overmolding (for example by inserting such a bracket body into an injection mold when manufacturing the advantageous and further developing itself from injectable Actuator housing made of polymer material); in addition or alternatively, a one-piece connection can also be made together with one or more of the actuator housings by way of production.

Erfindungsgemäß ist es vorgesehen, 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 vermindert, 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.According to the invention, it is provided that the actuating device has only one connection and plug unit for controlling or energizing the plurality of the coil means associated with the respective actuator units. In this way, the connection and cabling effort is advantageously reduced, in addition, the bracket-like or bridge-like connecting section can be used in a further development and advantageously in the context of the invention in order to lead supply cables thereon or therein (for example also advantageously protected by embedding), so that later, when assembling the electromagnetic actuating device 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 sit on the connection unit (connection section) itself and e.g. can be produced with this in a technical injection molding process.

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. Mantelabschnitt 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 Abschnitts, 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 einen 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 can in principle be arbitrary, it has nevertheless turned out to be advantageous to attach this connection unit to a lateral or jacket section of the actuator housing, respectively, using the advantageous (and easily automatable) manufacturing methods described above , Depending on the material used and the geometric and elasticity conditions, it has turned out to be preferred to choose an axial extension of such a bow-shaped or arch-like section, based on an equally axial extension of the associated housing, to not more than 40%, prefers this extension can also be less, up to less than 20%. A further particularly preferred development of the invention with regard to practical handling properties when the device according to the invention is installed at the place of use provides that a pair of mutually adjacent actuator units are each assigned end, front, handle, handling or flange sections. These preferably protrude radially in sections, so that handling or actuation is also possible with one hand by an assembly and operating person. At the same time, these sections, which are preferably planar at the end, form a defined upper edge (or surface) of the device, and a longitudinal edge of the opposing actuator housings, which further advantageously extends transversely to the axial direction, enables a gap-like spacing design which both visually reflects a specific spacing dimension during (tolerance-laden) installation , and also limited an adjustment stroke of the individual actuators to one another.

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 outstandingly suitable for the installation conditions on a motor vehicle internal combustion engine which are subject to tolerances, but the present invention is not restricted to this use according to the invention. Rather, the invention is fundamentally applicable to all actuator structures in which a compact, automatable, yet flexible arrangement with a plurality of actuator units can be installed with regard to installation tolerances.

Weitere Vorteile, vorteilhafte Merkmale und Einzelheiten der Erfindung ergeben sich aus der nachfolgenden Beschreibung bevorzugter Ausführungsbeispiele sowie anhand der Zeichnungen; diese zeigen in:

Fig. 1
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;
Fig. 3
eine axial um 90° gegenüber der Ansicht der Fig. 2 gedrehte Seitenansicht,
Fig. 4
eine Draufsicht auf die Vorrichtung des Ausführungsbeispiels der Fig. 1 bis Fig. 3 aus der Richtung der gemeinsamen Anschluss- 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.
Further advantages, advantageous features and details of the invention result from the following description of preferred exemplary embodiments and from the drawings; these show in:
Fig. 1
a perspective view of the electromagnetic actuator according to a first embodiment of the invention with two actuator units;
Fig. 2
a side view of the device according to Fig. 1 ;
Fig. 3
an axial 90 ° compared to the view of the Fig. 2 rotated side view,
Fig. 4
a plan view of the device of the embodiment of the 1 to 3 from the direction of the common connection and plug unit and a common end face, and
Fig. 5
a bottom view opposite the view of the Fig. 4 tilted by 180 ° onto the device from the exit side of the respective anchor tappet.

Die Figuren 1 bis 5 zeigen verschiedene Ansichten der elektromagnetischen 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 11, 13 der Einzelaktuatoren 10, 12 gewählt ist) verbunden, so, dass entsprechend toleranzbehafteten Einbau- und Eingriffsmaßen für Endabschnitte 16 von (in den jeweiligen Gehäusen 11, 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.The Figures 1 to 5 show different views of the electromagnetic actuator of the first and preferred embodiment. A pair of actuator units 10, 12 is connected by a bridge 14 as a tolerance compensation means (realized here from glass fiber reinforced polyamide, as is the material of the actuator housings 11, 13 of the individual actuators 10, 12), so that correspondingly tolerant installation and engagement dimensions for end sections 16 of (anchor plungers, not shown, which are guided in the respective housings 11, 13) a fit or a precisely fitting access to opposite actuating partners is made possible. In the installation context described, actuating grooves are assigned to this actuating partner to enable internal combustion engine camshaft adjustment.

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 11 bzw. 13 zusammenwirken, 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 heraustreiben.The individual actuators 10, 12 are approximately as electromagnetic actuating devices in the DE 201 14 466 U1 described type, this implementation with armature-side permanent magnets, which then interact with stationary coil means in the housings 11 and 13, is only exemplary and other implementation forms of electromagnetic actuating devices can be provided, which in the manner shown an engagement end 16 of an armature plunger in the about in the Figures 1 to 3 shown type drive out from the end of stationary guides 18 of the respective actuators 10, 12 in a controlled manner.

Zusätzlich erkennbar sind in den jeweiligen Darstellungen seitliche Montageflansche 20, 22, für eine entsprechend beidseitige Montage, wobei prinzipiell das Vorsehen der erfindungsgemäßen Brücke 14 (Verbindungseinheit 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 correspondingly two-sided mounting, the provision of the bridge 14 according to the invention (connecting unit or connecting section) in principle allowing attachment 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 11, 13 enthaltenen stationären Spulen, auch separat voneinander, bestromt und damit zum Antreiben der jeweiligen Ankerstößel angesteuert werden können.As in particular the representations of the Figures 1, 3, 4 clarify, sits adjacent to the actuator housing 13, a plug or socket section 24 injection-molded in one piece with the bracket 14. Fig. 4 ) illustrate how this connection can be used to energize the stationary coils contained in the housings 11, 13, also separately from one another, and thus to drive the respective armature plungers.

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 11, 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.The views of the Figures 1, 4 further illustrate how, axially opposite an outlet end of the armature tappet engagement areas 16, the arrangement on the end face of each of the housings 11, 13 has flat end sections 26, 28 which, in alignment, have an end face or, in the side view of FIG 2, 3 , enable a defined end edge of the device.

In der Draufsicht (Fig. 4) wird zudem deutlich, wie diese Endabschnitte griffartige bzw. flanschartige Vorsprünge 30, 32 gegenüber den primär zylindrischen Gehäusen 11, 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 Aktuatoreinheiten ausbildend, verdeutlicht gleichermaßen visuell einen (dann toleranzbehafteten) Abstand im Einbauzustand.In the top view ( Fig. 4 ) it also becomes clear how these end sections offer handle-like or flange-like projections 30, 32 compared to the primary cylindrical housings 11, 13, so that approximately from the direction of the Fig. 4 an assembly person can grasp the arrangement with one hand and use it with one hand at the installation site. The straight edge running through each of the sections 30, 32 - thus, in the view of the Fig. 4 Forming a gap between the pair of actuator units also visually illustrates a (then tolerant) 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 Knickwinkel 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 stattfindetThe side view in particular the Fig. 3 illustrates a dimensional ratio of the bridge (connecting unit 14) to an extension of the polymeric part of the housing (here 13): according to the desired stiffness and elasticity properties of the (according to Fig. 5 A bridge 14 describing an articulation angle of approximately 20 °, this extends in a direction parallel to the axial direction (ie vertically in the direction of the plane of the figure) Fig. 3 ) only by approx. 30% of the total length, so that space is also optimized here

Claims (9)

  1. An electromagnetic positioning device comprising
    a plurality of actuator units (10, 12) each comprising an armature plunger moveable along an axial plunger direction relative to stationary coil means in reaction to said coil means being energized,
    said actuator units being accommodated in assigned actuator housings (11, 13) of the positioning device in such a manner that a respective end portion (16) of the armature plungers can engage with an assignable positioning partner in a controlled manner when the electromagnetic positioning device is in an installed and/or assembled state,
    the plurality of actuator units being mechanically connected to a connection unit (14) of the positioning device in the shape of a bracket and/or bridge and made of polymeric material in such a manner that the actuator housings can be moved against one another by the action of and according to a predefined bending property and/or elasticity of the connection unit, in particular in a plane perpendicular to a plunger direction of the armature plungers, which are preferably guided axially parallel to one another,
    characterized in that
    the positioning device comprises a shared connector and/or plug unit (24) for the energization of the coil means of the plurality of actuator units, the connector and/or plug unit preferably being made of polymeric material.
  2. The device according to claim 1,
    characterized in that
    the connection unit is connected to the polymeric actuator housings by welding, gluing, encapsulating or as an assembly which is realized integrally with at least one of the actuator housings.
  3. The device according to claim 1,
    characterized in that
    the connector or plug unit (24) preferably sits integrally on the connection unit.
  4. The device according to any one of claims 1 to 3,
    characterized in that
    the connection unit is configured in such a manner that electrical leads for the energization of the coil means run at least partially in or through the connection unit (14).
  5. The device according to any one of claims 1 to 4,
    characterized in that
    the connection unit engages, preferably in a permanent manner, at a lateral and/or wall section of each actuator housing and/or, parallel to the axial positioning direction, said connection unit has an extent which is less than 50 %, preferably less than 30 %, more preferably less than 20 % of a minimum extent of one of the actuator housings parallel to the axial positioning direction.
  6. The device according to any one of claims 1 to 5,
    characterized in that
    an adjacent pair of the actuator units are assigned grip, handle and/or flange sections (30, 32) as part of the positioning device, in particular at a front region of the respective actuator housings opposite a plunger outlet end, in such a manner that they define a minimum distance of the actuator units, in particular as a distance gap which runs at least partially parallel, and that they allow for a manual handling of the positioning device by access with one hand.
  7. The device according to claim 6,
    characterized in that
    the grip, handle or flange sections (30, 32) are configured as a flat flange section which is formed integrally on a respective one of the actuator housings and which projects radially from the actuator housing.
  8. The device according to claim 6 or 7,
    characterized in that
    the grip, handle or flange sections (30, 32) define a shared end face of the electromagnetic positioning device with a respective flat face at the end.
  9. A use of the electromagnetic positioning device according to any one of claims 1 to 8 for installation on a combustion engine of a motor vehicle for phasing its camshaft.
EP17704169.6A 2016-01-25 2017-01-20 Electromagnetic actuating device and use thereof Active EP3408855B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016101263.7A DE102016101263A1 (en) 2016-01-25 2016-01-25 Electromagnetic actuator and use of such
PCT/EP2017/051190 WO2017129488A1 (en) 2016-01-25 2017-01-20 Electromagnetic adjusting device and use of such an adjusting device

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EP3408855A1 EP3408855A1 (en) 2018-12-05
EP3408855B1 true EP3408855B1 (en) 2019-12-25

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EP (1) EP3408855B1 (en)
CN (1) CN108496229B (en)
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DE102015115684A1 (en) * 2015-09-17 2017-03-23 Eto Magnetic Gmbh Electromagnetic actuator device and system
DE102017121947A1 (en) * 2017-09-21 2019-03-21 Kendrion (Villingen) Gmbh Actuator with a sealed guide cylinder
CN111917226B (en) * 2020-08-10 2022-06-17 淄博智科电气科技有限公司 Excitation coil installation device of excitation motor

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US5652560A (en) * 1995-11-01 1997-07-29 Xerox Corporation Extended life solenoid
JP3831104B2 (en) * 1997-05-13 2006-10-11 株式会社日立製作所 Intake / exhaust valve electromagnetic drive
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
DE102012018095B4 (en) * 2012-09-13 2014-07-24 Thomas Magnete Gmbh Assembly of electromagnets and method of manufacture

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DE102016101263A1 (en) 2017-07-27
CN108496229B (en) 2020-06-16
US10707002B2 (en) 2020-07-07
WO2017129488A1 (en) 2017-08-03
US20190043648A1 (en) 2019-02-07
CN108496229A (en) 2018-09-04
EP3408855A1 (en) 2018-12-05

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