EP2012328B1 - Solenoid - Google Patents

Solenoid Download PDF

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Publication number
EP2012328B1
EP2012328B1 EP08450096A EP08450096A EP2012328B1 EP 2012328 B1 EP2012328 B1 EP 2012328B1 EP 08450096 A EP08450096 A EP 08450096A EP 08450096 A EP08450096 A EP 08450096A EP 2012328 B1 EP2012328 B1 EP 2012328B1
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EP
European Patent Office
Prior art keywords
housing
solenoid
solenoid according
bent
end parts
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.)
Not-in-force
Application number
EP08450096A
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German (de)
French (fr)
Other versions
EP2012328A2 (en
EP2012328A3 (en
Inventor
Hans-Jörg Dipl.-Ing. Gasser
Ewald Dipl.-Ing. Lampl
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.)
MSG Mechatronic Systems GmbH
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MSG Mechatronic Systems GmbH
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Filing date
Publication date
Application filed by MSG Mechatronic Systems GmbH filed Critical MSG Mechatronic Systems GmbH
Publication of EP2012328A2 publication Critical patent/EP2012328A2/en
Publication of EP2012328A3 publication Critical patent/EP2012328A3/en
Application granted granted Critical
Publication of EP2012328B1 publication Critical patent/EP2012328B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/16—Rectilinearly-movable armatures
    • H01F7/1607—Armatures entering the winding
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/60—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution
    • F21S41/68—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on screens
    • F21S41/683—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on screens by moving screens
    • 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

Definitions

  • the invention relates to a solenoid, in particular for installation in vehicle headlights.
  • the use of a lifting magnet in headlight systems may make it necessary to protect or shield the lifting magnet, in particular the copper winding, against external thermal loads (burning glass effect).
  • a lifting magnet having a three-part housing having a first side plate, a second side plate and a cylindrical metal shell.
  • the side plates form the end faces of the metal shell by caulking the two side plates together with the metal shell at caulking surfaces.
  • the side plate accommodates a large bushing, the side plate the pole core and a small bearing bush, which is pressed into the pole core.
  • the metal sheath must be magnetically conductive.
  • This solenoid has a one-piece, partially open housing, are housed in the bushings, a pole core and a coil.
  • a solenoid is to be provided by the invention, which provides a minimum assembly cost, low magnetic losses and the lowest possible axial displacement of the bearings.
  • the solenoid of the invention makes it possible to include all the individual parts and assemblies of the solenoid in a one-piece housing, which also has the task to close the magnetic circuit of the solenoid and to ensure the connection to the customer interface for installation in vehicle headlights.
  • a pole core and a coil can be accommodated in the one-piece, partially open housing of the lifting magnet according to the invention.
  • the housing of the lifting magnet according to the invention has a very high mechanical stability, which can be further increased by measures explained below.
  • the housing can be assembled reliably and makes it possible to keep the tolerances within the two bearing points small and in particular to minimize axial misalignment of the bearing points.
  • Another aim is to ensure the mechanical stability with smaller size by appropriate connections on the item and beads process reliability and to keep the tolerances within the two bearings small.
  • the housing has a base element with free longitudinal parts, which can be bent into a trough shape or if the housing has end parts which extend from the base element and can be bent into a parallel configuration with respect to one another. This configuration also minimizes the axial misalignment of the bearings.
  • Verstemmf dockchen By providing Verstemmf dockchen to the end portions of the solenoid can be mounted with minimized caulking in a headlight, with the material deformation during caulking can be optimized.
  • mounting attachment extensions are provided in a further embodiment of the invention, which preferably carry the Verstemmf dockchen. By attaching beads on the attachment extensions, the mechanical stability of the housing can be further increased.
  • a diode connecting the terminals of the coil is mounted exposed on the housing or on the plug. This achieves excellent heat dissipation from the diode.
  • FIGS. 1, 2A, 2B and 3 Referenced This solenoid 1 is intended for installation in the reflector of a vehicle headlamp, where it is used to operate the aperture for the fade-up and dimming of bi-xenon headlamps. It should be noted that the lifting magnet in the vehicle headlight is typically exposed to temperatures up to 135 ° C, with the burning glass effect under solar radiation at a certain angle plays a major role.
  • the solenoid 1 is characterized by a one-piece, partially open housing 2, in which all components and components of the solenoid 1, in particular bearing bushes 13, 14, a pole core 12 and a coil 11 are receivable.
  • the housing 2 which is sometimes referred to as a "bracket" comprises a base member 5, the free longitudinal parts 6, 7 which are manufacturedbiegbar to a trough shape.
  • the bent-up longitudinal parts 6, 7 together with the base element 5 provide for the thermal shielding, for privacy (for aesthetic reasons in the automotive industry required), for improved magnetic flux and for maximum stability.
  • the end part 4 of the housing 2 has a circular recess 4a for receiving a bearing bush 13. Furthermore, two parallel attachment extensions 4b, which have caulking feet 8 at their free end, extend at a distance from one another. To increase the rigidity of the fastening extensions 4b beads 9 are formed therein. The beads 9 prevent deformation of the end part 4 during caulking. In the recess between the two attachment extensions 4b, a plug 16 is mounted. At the plug 16, a diode 17 connecting the terminals of the coil 11 is mounted exposed.
  • the end surface 3 of the housing 2 also has a circular recess 3a for receiving the pole core 12.
  • a bearing bush 14 is mounted, which leads a hook 15 for diaphragm adjustment axially movable.
  • the end face 3 also has caulking feet 8.
  • the housing 2 is formed of a magnetically conductive material. It offers excellent manufacturability, high mechanical strength and compliance with the required tolerances and customer requirements.
  • lifting magnet 1 according to the invention the assembly effort is minimized to the smallest degree. There are only two modules (coil and magnet complete) to be pre-assembled accordingly. All further assembly steps of the remaining items are made by means of an automatic assembly machine.
  • a further advantage of the housing 2 according to the invention of the lifting magnet 1 in contrast to the known three-part variant is the exact alignment of the two bearing points, which is ensured by the use of a mounting mandrel during assembly.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Push-Button Switches (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)
  • Electromagnets (AREA)

Description

Die Erfindung betrifft einen Hubmagneten, insbesondere zum Einbau in Fahrzeugscheinwerfer.The invention relates to a solenoid, in particular for installation in vehicle headlights.

Der Einsatz eines Hubmagneten in Scheinwerfersystemen kann es je nach Lage des Hubmagneten im System erforderlich machen, den Hubmagneten, im speziellen die Kupferwicklung, gegen äußere thermische Belastungen (Brennglaseffekt) zu schützen bzw. abzuschirmen.Depending on the position of the lifting magnet in the system, the use of a lifting magnet in headlight systems may make it necessary to protect or shield the lifting magnet, in particular the copper winding, against external thermal loads (burning glass effect).

Weiters ist es zwingend notwendig, im Gesamtsystem solche Flächen am Gehäuse zu schaffen, damit die Kupferwicklung des Hubmagneten einerseits vom Äußeren des Fahrzeuges durch das Scheinwerferglas (Vergrößerungseffekt) nicht sichtbar ist und andererseits, dass der Hubmagnet möglichst wenig Streulicht verursacht.Furthermore, it is imperative to create such surfaces on the housing in the overall system, so that the copper winding of the solenoid on the one hand from the exterior of the vehicle through the headlight glass (magnification effect) is not visible and on the other hand, that the solenoid causes as little stray light.

Um die genannten Anforderungen an den Hubmagneten zu realisieren wurde bisher ein Hubmagnet verwendet, der ein dreiteiliges Gehäuse aufweist, dass eine erste Seitenplatte, eine zweite Seitenplatte und einen zylindrischen Metallmantel aufweist. Die Seitenplatten bilden die Endflächen des Metallmantels, indem die beiden Seitenplatten mit dem Metallmantel an Verstemmflächen miteinander verstemmt werden. Die Seitenplatte nimmt eine große Lagerbuchse auf, die Seitenplatte den Polkern und eine kleine Lagerbuchse, die in den Polkern eingepresst ist. Um den Magnetkreis zu schließen, muss der Metallmantel magnetisch leitend sein.In order to realize the above requirements for the lifting magnet has hitherto been used a lifting magnet having a three-part housing having a first side plate, a second side plate and a cylindrical metal shell. The side plates form the end faces of the metal shell by caulking the two side plates together with the metal shell at caulking surfaces. The side plate accommodates a large bushing, the side plate the pole core and a small bearing bush, which is pressed into the pole core. To close the magnetic circuit, the metal sheath must be magnetically conductive.

Dieser bekannte Hubmagnet bringt folgende Nachteile mit sich:

  • Erhöhter Montageaufwand (vormontieren, zuführen, positionieren und verstemmen der Einzelteile)
  • Erhöhte Kosten (größerer Materialeinsatz, verschiedene Stanzwerkzeuge nötig, jedes Teil extra beschichtet
  • Magnetische Verluste durch Luftspalte an den Übergangsflächen Seitenplatten - Metallmantel durch material- und fertigungsbedingte Toleranzen
  • Größerer axialer Versatz der Lagerstellen durch auftretende Montage- und Einzelteiltoleranzen, was wiederum eine Schwächung der Magnetkraft zur Folge hat.
This known solenoid brings the following disadvantages:
  • Increased installation effort (pre-assembly, feeding, positioning and caulking of the individual parts)
  • Increased costs (greater use of materials, different punching tools needed, each part extra coated
  • Magnetic losses due to air gaps at the transitional surfaces Side plates - metal sheath due to material and production tolerances
  • Greater axial displacement of the bearings due to occurring assembly and component tolerances, which in turn has a weakening of the magnetic force result.

Aus dem Dokument US 2002/093411 A1 ist ein Hubmagnet gemäß dem Oberbegriff des Anspruchs 1 bekannt. Dieser Hubmagnet besitzt ein einteiliges, teilweise offenes Gehäuse, in dem Lagerbuchsen, ein Polkern und eine Spule aufgenommen sind.From the document US 2002/093411 A1 a lifting magnet according to the preamble of claim 1 is known. This solenoid has a one-piece, partially open housing, are housed in the bushings, a pole core and a coil.

Es ist die Aufgabe der vorliegenden Erfindung, einen Hubmagneten, insbesondere zum Einbau in Fahrzeugscheinwerfer, bereitzustellen, der die oben angeführten Nachteile der bekannten Hubmagneten vermeidet. Insbesondere soll durch die Erfindung ein Hubmagnet bereitgestellt werden, der einen minimalen Montageaufwand, geringe magnetische Verluste und einen möglichst geringen axialen Versatz der Lagerstellen bietet.It is the object of the present invention to provide a lifting magnet, in particular for installation in vehicle headlights, which avoids the above-mentioned disadvantages of the known lifting magnet. In particular, a solenoid is to be provided by the invention, which provides a minimum assembly cost, low magnetic losses and the lowest possible axial displacement of the bearings.

Diese Aufgabe wird erfindungsgemäß durch einen Hubmagneten mit den kennzeichnenden Merkmalen des Anspruchs 1 gelöst. Vorteilhafte Ausgestaltungen der Erfindung sind in den Unteransprüchen dargelegt.This object is achieved by a solenoid with the characterizing features of claim 1. Advantageous embodiments of the invention are set forth in the subclaims.

Der erfindungsgemäße Hubmagnet ermöglicht es, sämtliche Einzelteile und Baugruppen des Hubmagneten in einem einteiligen Gehäuse aufzunehmen, welches zusätzlich die Aufgabe hat, den Magnetkreis des Hubmagneten zu schließen und die Anbindung an die Kundenschnittstelle zum Einbau in Fahrzeugscheinwerfer zu gewährleisten. Insbesondere sind im einteiligen, teilweise offenen Gehäuse des erfindungsgemäßen Hubmagneten Lagerbuchsen, ein Polkern und eine Spule aufnehmbar.The solenoid of the invention makes it possible to include all the individual parts and assemblies of the solenoid in a one-piece housing, which also has the task to close the magnetic circuit of the solenoid and to ensure the connection to the customer interface for installation in vehicle headlights. In particular, in the one-piece, partially open housing of the lifting magnet according to the invention bearing bushes, a pole core and a coil can be accommodated.

Das Gehäuse des erfindungsgemäßen Hubmagneten weist eine sehr hohe mechanische Stabilität auf, die durch weiter unten erläuterte Maßnahmen noch weiter erhöhbar ist. Das Gehäuse ist prozesssicher zusammenbaubar und ermöglicht es, die Toleranzen innerhalb der beiden Lagerstellen klein zu halten und insbesondere axiale Versätze der Lagerstellen zu minimieren.The housing of the lifting magnet according to the invention has a very high mechanical stability, which can be further increased by measures explained below. The housing can be assembled reliably and makes it possible to keep the tolerances within the two bearing points small and in particular to minimize axial misalignment of the bearing points.

Durch die teilweise offene Bauweise des Gehäuses schirmt dieses zwar die Spule und anderen Baugruppen hervorragend gegen Wärmestrahlung der Leuchtmittel der Fahrzeugscheinwerfer sowie gegen über die Scheinwerfer eindringendes Sonnenlicht ab, ermöglicht aber gleichzeitig die Wärmeabfuhr von der Spule.Due to the partially open design of the housing while this shields the coil and other modules excellent against thermal radiation of the lamps of the vehicle headlights and against the headlights penetrating sunlight, but at the same time allows the heat dissipation from the coil.

Weiteres Ziel ist es, die mechanische Stabilität bei geringerer Baugröße durch entsprechende Verbindungen am Einzelteil und Sicken prozesssicher zu gewährleisten und die Toleranzen innerhalb der beiden Lagerstellen klein zu halten.Another aim is to ensure the mechanical stability with smaller size by appropriate connections on the item and beads process reliability and to keep the tolerances within the two bearings small.

Gute Prozesssicherheit in der Herstellung erreicht man, wenn das Gehäuse ein Grundelement mit freien Längsteilen aufweist, die zu einer Wannenform aufbiegbar sind bzw. wenn das Gehäuse Endteile aufweist, die sich von dem Grundelement erstrecken und in eine Parallelkonfiguration zueinander aufbiegbar sind. Durch diese Konfiguration wird auch der Axialversatz der Lagerstellen minimiert.Good process reliability in production is achieved if the housing has a base element with free longitudinal parts, which can be bent into a trough shape or if the housing has end parts which extend from the base element and can be bent into a parallel configuration with respect to one another. This configuration also minimizes the axial misalignment of the bearings.

Hervorragende mechanische Stabilität des erfindungsgemäßen Hubmagneten wird erhalten, wenn im aufgebogenen Zustand die Endteile des Gehäuse mit benachbarten Längsteilen mittels eines Feder-Nut-Systems verbunden sind.Excellent mechanical stability of the lifting magnet according to the invention is obtained when in the bent state, the end portions of the housing are connected to adjacent longitudinal parts by means of a tongue and groove system.

Durch Vorsehen von Verstemmfüßchen an den Endteilen kann der Hubmagnet mit minimierter Verstemmkraft in einem Scheinwerfer montiert werden, wobei auch die Materialverformung beim Verstemmen optimiert werden kann. Zur Montage des Hubmagneten sind in einer weiteren Ausgestaltung der Erfindung Befestigungsfortsätze vorgesehen, die vorzugsweise die Verstemmfüßchen tragen. Durch Anbringen von Sicken an den Befestigungsfortsätzen kann die mechanische Stabilität des Gehäuses weiter erhöht werden.By providing Verstemmfüßchen to the end portions of the solenoid can be mounted with minimized caulking in a headlight, with the material deformation during caulking can be optimized. For mounting the solenoid mounting attachment extensions are provided in a further embodiment of the invention, which preferably carry the Verstemmfüßchen. By attaching beads on the attachment extensions, the mechanical stability of the housing can be further increased.

Es ist weiters vorgesehen, einen Stecker am Gehäuse zu montieren.It is further intended to mount a plug on the housing.

In einer bevorzugten Ausgestaltung der Erfindung ist eine die Anschlüsse der Spule verbindende Diode freiliegend am Gehäuse oder am Stecker montiert. Man erzielt dadurch eine hervorragende Wärmeableitung von der Diode.In a preferred embodiment of the invention, a diode connecting the terminals of the coil is mounted exposed on the housing or on the plug. This achieves excellent heat dissipation from the diode.

Die Erfindung wird nun anhand einer nicht einschränkenden Ausführungsform unter Bezugnahme auf die Zeichnungen näher erläutert. In den Zeichnungen zeigen:

  • Fig. 1 eine perspektivische Ansicht eines Gehäuses eines erfindungsgemäßen Hubmagneten;
  • Fig. 2A und 2B perspektivische Ansichten des erfindungsgemäßen Hubmagneten; und
  • Fig. 3 einen Längsschnitt durch den erfindungsgemäßen Hubmagneten.
The invention will now be explained in more detail by means of a non-limiting embodiment with reference to the drawings. In the drawings show:
  • Fig. 1 a perspective view of a housing of a lifting magnet according to the invention;
  • FIGS. 2A and 2B perspective views of the lifting magnet according to the invention; and
  • Fig. 3 a longitudinal section through the lifting magnet according to the invention.

Bei der Beschreibung einer bevorzugten Ausführungsform des erfindungsgemäßen Hubmagneten 1 wird nun auf die Figuren 1, 2A, 2B und 3 Bezug genommen. Dieser Hubmagnet 1 ist zum Einbau in den Reflektor eines Fahrzeugscheinwerfers vorgesehen, wo er dazu benutzt wird, die Blende für das Auf- und Abblenden von Bi-Xenon-Scheinwerfern zu betätigen. Es sei erwähnt, dass der Hubmagnet im Fahrzeugscheinwerfer typischerweise Temperaturen bis 135°C ausgesetzt ist, wobei auch der Brennglaseffekt bei Sonneneinstrahlung unter bestimmtem Winkel eine große Rolle spielt. Der Hubmagnet 1 zeichnet sich durch ein einteiliges, teilweise offenes Gehäuse 2 aus, in dem alle Baugruppen und Bestandteile des Hubmagneten 1, insbesondere Lagerbuchsen 13, 14, ein Polkern 12 und eine Spule 11 aufnehmbar sind.In the description of a preferred embodiment of the lifting magnet 1 according to the invention is now on the FIGS. 1, 2A, 2B and 3 Referenced. This solenoid 1 is intended for installation in the reflector of a vehicle headlamp, where it is used to operate the aperture for the fade-up and dimming of bi-xenon headlamps. It should be noted that the lifting magnet in the vehicle headlight is typically exposed to temperatures up to 135 ° C, with the burning glass effect under solar radiation at a certain angle plays a major role. The solenoid 1 is characterized by a one-piece, partially open housing 2, in which all components and components of the solenoid 1, in particular bearing bushes 13, 14, a pole core 12 and a coil 11 are receivable.

Das Gehäuse 2, das manchmal auch als "Bügel" bezeichnet wird, umfasst ein Grundelement 5, das freie Längsteilen 6, 7 aufweist, die zu einer Wannenform aufbiegbar sind. Die aufgebogenen Längsteile 6, 7 sorgen zusammen mit dem Grundelement 5 für die thermische Abschirmung, für Sichtschutz (aus ästhetischen Gründen im Autobau erforderlich), für einen verbesserten magnetischen Fluss und für höchste Stabilität. Weiters erstrecken sich in Längsrichtung vom Grundelement 5 Endteile 3, 4, die in eine Parallelkonfiguration zueinander aufbiegbar sind, wobei im aufgebogenen Zustand die Endteile 3, 4 mit benachbarten Längsteilen 6, 7 mittels eines Feder-Nut-Systems 10 verbunden sind. Es entsteht dadurch ein Gehäuse 2 mit maximaler mechanischer Stabilität und minimalem axialem Lagerversatz A (siehe Fig. 3).The housing 2, which is sometimes referred to as a "bracket", comprises a base member 5, the free longitudinal parts 6, 7 which are aufgebiegbar to a trough shape. The bent-up longitudinal parts 6, 7 together with the base element 5 provide for the thermal shielding, for privacy (for aesthetic reasons in the automotive industry required), for improved magnetic flux and for maximum stability. Further extend in the longitudinal direction of the base member 5 end portions 3, 4, which are aufbiegbar in a parallel configuration, wherein in the bent state, the end portions 3, 4 are connected to adjacent longitudinal members 6, 7 by means of a tongue and groove system 10. This results in a housing 2 with maximum mechanical stability and minimal axial bearing misalignment A (see Fig. 3 ).

Das Endteil 4 des Gehäuses 2 weist eine kreisförmige Ausnehmung 4a zur Aufnahme einer Lagerbuchse 13 auf. Weiters erstrecken sich im Abstand zueinander zwei parallele Befestigungsfortsätze 4b, die an ihrem freien Ende Verstemmfüßchen 8 aufweisen. Zur Erhöhung der Steifigkeit der Befestigungsfortsätze 4b sind darin Sicken 9 ausgebildet. Die Sicken 9 verhindern eine Verformung des Endteils 4 beim Verstemmen. In die Aussparung zwischen den beiden Befestigungsfortsätzen 4b ist ein Stecker 16 montiert. An dem Stecker 16 ist eine die Anschlüsse der Spule 11 verbindende Diode 17 freiliegend montiert.The end part 4 of the housing 2 has a circular recess 4a for receiving a bearing bush 13. Furthermore, two parallel attachment extensions 4b, which have caulking feet 8 at their free end, extend at a distance from one another. To increase the rigidity of the fastening extensions 4b beads 9 are formed therein. The beads 9 prevent deformation of the end part 4 during caulking. In the recess between the two attachment extensions 4b, a plug 16 is mounted. At the plug 16, a diode 17 connecting the terminals of the coil 11 is mounted exposed.

Die Endfläche 3 des Gehäuses 2 weist ebenfalls eine kreisförmige Ausnehmung 3a zur Aufnahme des Polkerns 12 auf. Im Polkern 12 ist einer Lagerbuchse 14 montiert, die einen Haken 15 zur Blendenverstellung axial beweglich führt. Weiters besitzt die Endfläche 3 ebenfalls Verstemmfüßchen 8.The end surface 3 of the housing 2 also has a circular recess 3a for receiving the pole core 12. In Polkern 12 a bearing bush 14 is mounted, which leads a hook 15 for diaphragm adjustment axially movable. Furthermore, the end face 3 also has caulking feet 8.

Das Gehäuse 2 ist aus einem magnetisch leitenden Material ausgebildet. Es bietet hervorragende Herstellbarkeit, hohe mechanische Festigkeit und die Einhaltung der erforderlichen Toleranzen sowie der kundenseitigen Anforderungen. Beim erfindungsgemäßen Hubmagneten 1 ist der Montageaufwand auf das kleinste Maß minimiert. Es müssen lediglich zwei Baugruppen (Spule und Magnet komplett) entsprechend vormontiert werden. Alle weiteren Montageschritte der restlichen Einzelteile erfolgen mittels eines Montageautomaten.The housing 2 is formed of a magnetically conductive material. It offers excellent manufacturability, high mechanical strength and compliance with the required tolerances and customer requirements. When lifting magnet 1 according to the invention the assembly effort is minimized to the smallest degree. There are only two modules (coil and magnet complete) to be pre-assembled accordingly. All further assembly steps of the remaining items are made by means of an automatic assembly machine.

Ein weiterer Vorteil des erfindungsgemäßen Gehäuses 2 des Hubmagneten 1 im Gegensatz zur bekannten dreiteiligen Variante ist die exakte Fluchtung der beiden Lagerstellen, die durch die Verwendung eines Montagedorns während der Montage sichergestellt wird.A further advantage of the housing 2 according to the invention of the lifting magnet 1 in contrast to the known three-part variant is the exact alignment of the two bearing points, which is ensured by the use of a mounting mandrel during assembly.

Die Erfindung bietet zusammengefasst die folgenden Vorteile:

  • Kosteneinsparungspotential
  • Geringerer Materialeinsatz
  • Geringeres Magnetgewicht
  • Kleinerer Bauraum notwendig
  • Verbesserte Toleranzsituation des Gesamtsystems
  • Höhere Magnetkraft durch Einengung der Toleranzen in den Lagerstellen
  • Geringerer Montageaufwand
  • Optimierter Magnetfluss durch Entfall von Luftspalte gegenüber mehrteiligen Lösungen
  • Hohe mechanische Stabilität bei geringerem Bauraum
  • Bessere Umweltfreundlichkeit durch geringeren Materialeinsatz und die geringere Anzahl der zu beschichtenden Teile.
In summary, the invention offers the following advantages:
  • Cost saving potential
  • Lower material usage
  • Lower magnetic weight
  • Smaller space required
  • Improved tolerance situation of the entire system
  • Higher magnetic force by narrowing the tolerances in the bearings
  • Lower installation costs
  • Optimized magnetic flux due to elimination of air gaps compared to multi-part solutions
  • High mechanical stability with less installation space
  • Better environmental friendliness due to lower material usage and the smaller number of parts to be coated.

Claims (8)

  1. A solenoid (1), in particular for installation in vehicle headlights, comprising a one-piece, partially opened housing (2) in which bearing bushes (13, 14), a pole core (12) and a coil (11) can be accommodated, characterized in that the housing comprises a base element (5) with free longitudinal parts (6, 7) which are bent up to a trough shape.
  2. A solenoid according to claim 1, characterized in that the housing (2) comprises end parts (3, 4) which extend from the base element (5) and are bent up toward each other into a parallel configuration.
  3. A solenoid according to claim 2, characterized in that, in the bent-up condition, the end parts (3, 4) are connected to adjacent longitudinal parts (6, 7) via a spring-groove system (10).
  4. A solenoid according to claim 2 or 3, characterized in that the end parts (3, 4) comprise caulking bases (8).
  5. A solenoid according to any of claims 2 to 4, characterized in that the end parts (3, 4) comprise fastening extensions (4b) which preferably support the caulking bases (8).
  6. A solenoid according to claim 5, characterized in that the fastening extensions (4b) comprise beads (9).
  7. A solenoid according to any of the preceding claims, characterized in that a plug (16) is mounted to the housing (2).
  8. A solenoid according to any of the preceding claims, characterized in that a diode (17) connecting the terminals of the coil (11) is mounted exposedly to the housing (2) or the plug (16).
EP08450096A 2007-07-03 2008-07-02 Solenoid Not-in-force EP2012328B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT0041607U AT10231U1 (en) 2007-07-03 2007-07-03 solenoid

Publications (3)

Publication Number Publication Date
EP2012328A2 EP2012328A2 (en) 2009-01-07
EP2012328A3 EP2012328A3 (en) 2011-01-05
EP2012328B1 true EP2012328B1 (en) 2012-10-17

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EP08450096A Not-in-force EP2012328B1 (en) 2007-07-03 2008-07-02 Solenoid

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AT (2) AT10231U1 (en)

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DE102019120935A1 (en) * 2019-08-02 2021-02-04 Schaeffler Technologies AG & Co. KG Method for assembling an electromagnetic actuator for a variable valve train

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DE1825869U (en) * 1960-04-29 1961-02-02 Bosch Gmbh Robert ELECTROMAGNET,
US3274525A (en) * 1964-08-28 1966-09-20 Comar Electric Company Solenoid device having a non-rotatably mounted coil bobbin
US5887624A (en) * 1995-10-23 1999-03-30 Kabushiki Kaisha Honda Lock Electromagnetic valve device
DE10038306A1 (en) * 2000-03-16 2001-09-20 Continental Teves Ag & Co Ohg Electromagnet for operation of valves in valve block has yoke enclosing coil carrier provided with elongate opening receiving edge of coil carrier for reducing overall size of electromagnet
US6633216B2 (en) * 2001-01-12 2003-10-14 Kelsey-Hayes Company Self-locating coil assembly
DE202005008097U1 (en) * 2005-05-19 2005-07-21 Kuhnke Gmbh Lifting magnet having fasteners both on the magnet yoke and also on the pole plate

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AT11765U1 (en) 2011-04-15
EP2012328A2 (en) 2009-01-07
EP2012328A3 (en) 2011-01-05

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