EP2442020A2 - Light with pivotable flat light unit - Google Patents

Light with pivotable flat light unit Download PDF

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Publication number
EP2442020A2
EP2442020A2 EP11183769A EP11183769A EP2442020A2 EP 2442020 A2 EP2442020 A2 EP 2442020A2 EP 11183769 A EP11183769 A EP 11183769A EP 11183769 A EP11183769 A EP 11183769A EP 2442020 A2 EP2442020 A2 EP 2442020A2
Authority
EP
European Patent Office
Prior art keywords
lighting unit
housing
housing opening
flat
luminaire according
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
EP11183769A
Other languages
German (de)
French (fr)
Other versions
EP2442020B1 (en
EP2442020A3 (en
Inventor
Eckhard Halemeier
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.)
Halemeier GmbH
Original Assignee
Halemeier GmbH
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Filing date
Publication date
Application filed by Halemeier GmbH filed Critical Halemeier GmbH
Publication of EP2442020A2 publication Critical patent/EP2442020A2/en
Publication of EP2442020A3 publication Critical patent/EP2442020A3/en
Application granted granted Critical
Publication of EP2442020B1 publication Critical patent/EP2442020B1/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
    • F21V21/14—Adjustable mountings
    • F21V21/26—Pivoted arms
    • F21V21/28—Pivoted arms adjustable in more than one plane
    • F21V21/29—Pivoted arms adjustable in more than one plane employing universal joints
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F21S8/02—Lighting devices intended for fixed installation of recess-mounted type, e.g. downlighters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
    • F21V21/14—Adjustable mountings
    • F21V21/30—Pivoted housings or frames
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
    • F21V21/02—Wall, ceiling, or floor bases; Fixing pendants or arms to the bases
    • F21V21/04—Recessed bases
    • F21V21/047—Mounting arrangements with fastening means engaging the inner surface of a hole in a ceiling or wall, e.g. for solid walls or for blind holes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/001—Arrangement of electric circuit elements in or on lighting devices the elements being electrical wires or cables
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V33/00—Structural combinations of lighting devices with other articles, not otherwise provided for
    • F21V33/0004—Personal or domestic articles
    • F21V33/0012—Furniture
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
    • F21W2131/30—Lighting for domestic or personal use
    • F21W2131/301—Lighting for domestic or personal use for furniture
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
    • F21Y2103/30—Elongate light sources, e.g. fluorescent tubes curved
    • F21Y2103/33—Elongate light sources, e.g. fluorescent tubes curved annular
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Definitions

  • the invention relates to a luminaire, in particular a recessed luminaire for installation in furniture panels or the like.
  • U1 is an LED lamp with a cup-shaped housing for mounting the lamp in a pot bore of a furniture floor or the like known.
  • a use of the lamp is fitted with its outer peripheral surface fits into the housing and holds a equipped with three high-power LEDs board.
  • the object of the invention is to provide a luminaire, in particular a flat recessed luminaire, in which a direction of the light emission can be easily adjusted.
  • a lamp with a flat housing which has a housing opening at a flat front, and with a flat lighting unit, wherein the lighting unit is held via a hinge in the housing opening such that the lighting unit via the joint in at least two Directions is tilted relative to the housing opening, wherein the lighting unit comprises a plurality of LED bulbs, which are arranged distributed around an axis extending transversely to the flat light unit axis, on which axis the hinge is arranged.
  • the lighting unit is flat, i. mainly in width.
  • an axis extending transversely to the flat light unit axis is to be understood an obliquely or preferably straight from a front to a rear side extending through the light unit, imaginary axis.
  • This may in particular be a central axis, i. a passing through a center of the lighting unit, perpendicular to a main plane of the lighting unit axis.
  • the LED lighting means may form an annular array around said axis.
  • the said axis is for example a central axis of the at least one annular arrangement. If the lighting unit is inclined relative to the housing opening, then one side of the lighting unit moves forward, for example, out of the housing opening out, while an opposite side of the light unit moves backwards, eg further into the housing.
  • the arrangement of the joint on said axis is more space in the peripheral area for pivoting the respective side of the light unit into the housing available.
  • a preferred example of such a luminaire is a luminaire with a flat housing, which has a housing opening on a flat front side, and with a flat lighting unit, which is held in the housing opening via a hinge in such a way that the luminous unit is moved over the hinge in at least two directions can be tilted relative to the housing opening, wherein the lighting unit has at least one annular arrangement of a plurality of LED lighting means, and wherein the hinge is arranged on a central axis of the at least one annular arrangement.
  • the joint may be, for example, a ball joint.
  • a ball joint requires few components and can be arranged so that the lighting unit is tiltable in any direction relative to the housing opening.
  • the housing may be a built-in housing, which is designed for installation in an opening of a furniture part or a wall or ceiling paneling.
  • Such installation housing are known per se in the form of cup-shaped installation housings for arrangement in a pot bore of a furniture floor or the like.
  • the lighting unit preferably has LED lighting means only in an outer area which laterally surrounds a central area of the lighting unit, the central area being bounded to the front by a front section of the lighting unit, behind which front portion the hinge is arranged. There is space for the joint in the central area.
  • the joint can be arranged so particularly close to the front of the lighting unit.
  • the lighting unit preferably has a metal housing element which forms at least part of a rear-side outer surface of the lighting unit. In this way, heat generated by the LEDs can be delivered to the space between the lighting unit and the housing of the lamp. This is preferably via the housing opening, for example via a gap between the lighting unit and a housing wall, with the ambient air in connection.
  • Fig. 1 shows a schematic representation of a flat recessed luminaire with a pot-shaped installation housing 10, which at an in Fig. 1 upward facing front is open.
  • a housing opening 12 is bounded radially by a substantially cylindrical outer wall 13 and bounded by a flat bottom 14 to the rear.
  • the outer wall 13 has on its outer peripheral surface in Fig. 1 exemplified harpoon webs 15, which allow attachment of the lamp in a pot bore of a furniture floor or the like.
  • a part 16 in the form of a column at the front end of a condyle 18 of a ball joint is arranged.
  • the lighting unit 20 is substantially disc-shaped with a flat, lenticular bulging Front side 22 and a flat, ie substantially extending in the width, rear side 23, which is also arched lens-shaped.
  • a housing member 24 of the light unit 20 forms a hinge bearing 26 for the condyle 18.
  • the substantially spherical condyle 18 and the hinge bearing 26 form a ball joint over which the light unit 20 can be tilted in any direction relative to the housing opening 12 ,
  • the joint bearing 26 acts as the condyle 18 encompassing socket.
  • the pivot bearing 26 may hold the condyle 18 via one or more bearing sections.
  • a central axis A of the lighting unit 20 is shown in a tilted by about 15 ° relative to a central axis B of the housing opening 12 position.
  • the housing element 24, which forms the central area of the lighting unit 20, is bounded to the front by an opaque central front section 28 of the lighting unit 20.
  • the condyle 18 can be clipped into the joint bearing 26, for example during the assembly of the joint.
  • the central region of the lighting unit 20 is laterally surrounded by an annular disk-shaped outer region.
  • a housing member 30 made of metal, a support assembly 32 for LEDs 34 in the form of one or more boards, a reflector assembly 36 and a translucent or translucent cover 38 is arranged, which an annular light emitting surface 40 on the front side 22nd the lighting unit 20 forms.
  • a translucent cover 38 By means of a translucent cover 38, light generated by the LEDs 34 can be scattered and emitted at the light emission surface 40.
  • 30 LEDs 34 are arranged in the form of an annular arrangement in a plane around the ball joint and the central region of the lighting unit 20.
  • the axis A forms a central axis of symmetry of the annular arrangement of the LEDs 34.
  • the LEDs 34 are distributed around and spaced from the hinge.
  • the LEDs 34 are in a plane intersecting the condyle 18 distributed around the condyle 18 around.
  • the LEDs 34 are each received in apertures in the reflector assembly 36.
  • the reflector assembly 36 forms an annular groove with sidewalls that, starting from the positions of the LEDs 34, radially inwardly and radially outwardly each rise forward to direct the light of the LEDs 34 in the direction of the cover 38. At least the front of the reflector assembly 36 is formed for example by a metal layer.
  • the reflector assembly 36 is one or more parts and is arranged laterally outside of the joint 18, 26 extending around the hinge.
  • the housing element 30 is fastened to the housing element 24, for example by means of screws, so that the support arrangement 32 can be removed when the light unit 20 removed from the housing 12 by loosening the screws. This allows replacement in the event of a defective LED.
  • the carrier assembly 32 is one or more parts and has a central recess in which the hinge 18, 26 is arranged.
  • the housing element 30 has cooling fins 33.
  • the front side of the carrier assembly 32 is applied to the housing member 30, so that waste heat of the LEDs 34 can be dissipated and emitted via the cooling fins 33.
  • the hinge 18, 26 is located at the height of a maximum diameter of the lighting unit 20 and at the level of the front edge of the housing opening 12. Thus, a sideways pivoting of the lighting unit 20 when tilting the same about the joint can be minimized. In addition, the lighting unit can be pivoted relatively far into the housing 10. The bottom 14 of the housing 10 forms a stop for the lighting unit 20th
  • Fig. 2 shows in a schematic cross-sectional view of the part 16 which carries the condyle 18.
  • the part 16 has on two opposite sides on radial projections 44 in the form of webs.
  • Projections 46 which cooperate with the projections 44 to limit rotation of the lighting unit 20 about the axes A and B, respectively, are also formed on the rear side 23 of the lighting unit 20.
  • the projections 44, 46 thus form rotation limiting means for the lighting unit 20 and thus secure the cable connection to the light unit 20.

Abstract

The lamp has a flat housing (10), which has a housing opening (12) on a flat front side, and a flat luminous unit (20), which is held in the housing opening through a joint. The luminous unit is tilted relative to the housing opening in two directions. The luminous unit has multiple light emitting diode-illuminants, which are arranged around an axis running transverse to the flat luminous unit.

Description

Die Erfindung betrifft eine Leuchte, insbesondere eine Einbauleuchte für den Einbau in Möbelplatten oder dergleichen.The invention relates to a luminaire, in particular a recessed luminaire for installation in furniture panels or the like.

Aus DE 20 2006 002 583 U1 ist eine LED-Leuchte mit einem topfförmigen Einbaugehäuse zur Befestigung der Leuchte in einer Topfbohrung eines Möbelbodens oder dergleichen bekannt. Ein Einsatz der Leuchte ist mit seiner äußeren Umfangsfläche passend in das Einbaugehäuse eingesetzt und hält eine mit drei lichtstarken LEDs bestückte Platine.Out DE 20 2006 002 583 U1 is an LED lamp with a cup-shaped housing for mounting the lamp in a pot bore of a furniture floor or the like known. A use of the lamp is fitted with its outer peripheral surface fits into the housing and holds a equipped with three high-power LEDs board.

Aufgabe der Erfindung ist es, eine Leuchte, insbesondere eine flache Einbauleuchte zu schaffen, bei der sich eine Richtung der Lichtabstrahlung einfach einstellen lässt.The object of the invention is to provide a luminaire, in particular a flat recessed luminaire, in which a direction of the light emission can be easily adjusted.

Diese Aufgabe wird erfindungsgemäß durch eine Leuchte mit einem flachen Gehäuse, welches an einer flachen Vorderseite eine Gehäuseöffnung aufweist, und mit einer flachen Leuchteinheit gelöst, wobei die Leuchteinheit über ein Gelenk in der Gehäuseöffnung gehalten ist derart, dass die Leuchteinheit über das Gelenk in wenigstens zwei Richtungen relativ zur Gehäuseöffnung neigbar ist, wobei die Leuchteinheit mehrere LED-Leuchtmittel aufweist, die um eine quer zur flachen Leuchteinheit verlaufende Achse herum verteilt angeordnet sind, auf welcher Achse das Gelenk angeordnet ist.This object is achieved by a lamp with a flat housing, which has a housing opening at a flat front, and with a flat lighting unit, wherein the lighting unit is held via a hinge in the housing opening such that the lighting unit via the joint in at least two Directions is tilted relative to the housing opening, wherein the lighting unit comprises a plurality of LED bulbs, which are arranged distributed around an axis extending transversely to the flat light unit axis, on which axis the hinge is arranged.

Die Leuchteinheit ist flach, d.h. hauptsächlich in der Breite ausgedehnt. Unter einer quer zur flachen Leuchteinheit verlaufenden Achse soll eine schräg oder vorzugsweise gerade von einer Vorderseite zu einer Hinterseite durch die Leuchteinheit verlaufende, gedachte Achse verstanden werden. Dies kann insbesondere eine zentrale Achse sein, d.h. eine durch eine Mitte der Leuchteinheit verlaufende, zu einer Hauptebene der Leuchteinheit senkrechte Achse.The lighting unit is flat, i. mainly in width. Under an axis extending transversely to the flat light unit axis is to be understood an obliquely or preferably straight from a front to a rear side extending through the light unit, imaginary axis. This may in particular be a central axis, i. a passing through a center of the lighting unit, perpendicular to a main plane of the lighting unit axis.

Die LED-Leuchtmittel können beispielsweise eine ringförmige Anordnung um die genannte Achse herum bilden. Die genannte Achse ist beispielsweise eine zentrale Achse der wenigstens einen ringförmigen Anordnung. Wird die Leuchteinheit relativ zur Gehäuseöffnung geneigt, so bewegt sich eine Seite der Leuchteinheit nach vorne, z.B. aus der Gehäuseöffnung heraus, während eine gegenüberliegende Seite der Leuchteinheit sich nach hinten bewegt, z.B. weiter in das Gehäuse hinein. Durch die Anordnung des Gelenks auf der genannten Achse steht im peripheren Bereich mehr Platz für das Hineinschwenken der jeweiligen Seite der Leuchteinheit in das Gehäuse zur Verfügung.For example, the LED lighting means may form an annular array around said axis. The said axis is for example a central axis of the at least one annular arrangement. If the lighting unit is inclined relative to the housing opening, then one side of the lighting unit moves forward, for example, out of the housing opening out, while an opposite side of the light unit moves backwards, eg further into the housing. The arrangement of the joint on said axis is more space in the peripheral area for pivoting the respective side of the light unit into the housing available.

Ein bevorzugtes Beispiel einer derartigen Leuchte ist eine Leuchte mit einem flachen Gehäuse, welches an einer flachen Vorderseite eine Gehäuseöffnung aufweist, und mit einer flachen Leuchteinheit, die über ein Gelenk in der Gehäuseöffnung gehalten ist derart, dass die Leuchteinheit über das Gelenk in wenigstens zwei Richtungen relativ zur Gehäuseöffnung neigbar ist, wobei die Leuchteinheit wenigstens eine ringförmige Anordnung mehrerer LED-Leuchtmittel aufweist, und wobei das Gelenk auf einer zentralen Achse der wenigstens einen ringförmigen Anordnung angeordnet ist.A preferred example of such a luminaire is a luminaire with a flat housing, which has a housing opening on a flat front side, and with a flat lighting unit, which is held in the housing opening via a hinge in such a way that the luminous unit is moved over the hinge in at least two directions can be tilted relative to the housing opening, wherein the lighting unit has at least one annular arrangement of a plurality of LED lighting means, and wherein the hinge is arranged on a central axis of the at least one annular arrangement.

Weitere vorteilhafte Ausgestaltungen und Weiterbildungen der Erfindung ergeben sich aus den Unteransprüchen.Further advantageous embodiments and modifications of the invention will become apparent from the dependent claims.

Das Gelenk kann beispielsweise ein Kugelgelenk sein. Ein Kugelgelenk erfordert wenige Bauteile und kann so angeordnet sein, dass die Leuchteinheit in jeder Richtung relativ zur Gehäuseöffnung neigbar ist.The joint may be, for example, a ball joint. A ball joint requires few components and can be arranged so that the lighting unit is tiltable in any direction relative to the housing opening.

Beispielsweise kann das Gehäuse ein Einbaugehäuse sein, das für den Einbau in einer Öffnung eines Möbelteils oder einer Wand- oder Deckenverkleidung ausgebildet ist. Solche Einbaugehäuse sind in Form von topfförmigen Einbaugehäusen zur Anordnung in einer Topfbohrung eines Möbelbodens oder dergleichen an sich bekannt.For example, the housing may be a built-in housing, which is designed for installation in an opening of a furniture part or a wall or ceiling paneling. Such installation housing are known per se in the form of cup-shaped installation housings for arrangement in a pot bore of a furniture floor or the like.

Vorzugsweise weist die Leuchteinheit LED-Leuchtmittel lediglich in einem Außenbereich auf, der einen zentralen Bereich der Leuchteinheit seitlich umgibt, wobei der zentrale Bereich nach vorne von einem Frontabschnitt der Leuchteinheit begrenzt wird, hinter welchem Frontabschnitt das Gelenk angeordnet ist. Im zentralen Bereich steht somit Platz für das Gelenk zur Verfügung. Außerdem kann das Gelenk kann so besonders nahe zur Vorderseite der Leuchteinheit angeordnet sein.The lighting unit preferably has LED lighting means only in an outer area which laterally surrounds a central area of the lighting unit, the central area being bounded to the front by a front section of the lighting unit, behind which front portion the hinge is arranged. There is space for the joint in the central area. In addition, the joint can be arranged so particularly close to the front of the lighting unit.

Vorzugsweise weist die Leuchteinheit ein Gehäuseelement aus Metall auf, welches zumindest einen Teil einer rückseitigen Außenfläche der Leuchteinheit bildet. Auf diese Weise kann von den LEDs erzeugte Wärme an den Freiraum zwischen der Leuchteinheit und dem Gehäuse der Leuchte abgegeben werden. Dieser steht vorzugsweise über die Gehäuseöffnung, beispielsweise über einen Spalt zwischen der Leuchteinheit und einer Gehäusewand, mit der Umgebungsluft in Verbindung.The lighting unit preferably has a metal housing element which forms at least part of a rear-side outer surface of the lighting unit. In this way, heat generated by the LEDs can be delivered to the space between the lighting unit and the housing of the lamp. This is preferably via the housing opening, for example via a gap between the lighting unit and a housing wall, with the ambient air in connection.

Im folgenden wird ein bevorzugtes Ausführungsbeispiel der Erfindung anhand der Zeichnungen näher erläutert.In the following a preferred embodiment of the invention will be explained in more detail with reference to the drawings.

Es zeigen:

Fig. 1
einen axialen Schnitt durch ein Gehäuse einer Leuchte mit einer in einer Gehäuseöffnung angeordneten Leuchteinheit; und
Fig. 2
eine schematische Draufsicht auf eine Drehbegrenzungseinrichtung der Leuchte.
Show it:
Fig. 1
an axial section through a housing of a lamp with a lamp housing arranged in a housing opening; and
Fig. 2
a schematic plan view of a rotation limiting device of the lamp.

Fig. 1 zeigt eine schematische Darstellung einer flachen Einbauleuchte mit einem topfförmigen Einbaugehäuse 10, welches an einer in Fig. 1 nach oben gerichteten Vorderseite offen ist. Eine Gehäuseöffnung 12 wird durch eine im wesentlichen zylindrische Außenwand 13 radial begrenzt und durch einen flachen Boden 14 nach hinten begrenzt. Die Außenwand 13 weist auf ihrer äußeren Umfangsfläche in Fig. 1 beispielhaft dargestellte Harpunenstege 15 auf, welche eine Befestigung der Leuchte in einer Topfbohrung eines Möbelbodens oder dergleichen ermöglichen. Fig. 1 shows a schematic representation of a flat recessed luminaire with a pot-shaped installation housing 10, which at an in Fig. 1 upward facing front is open. A housing opening 12 is bounded radially by a substantially cylindrical outer wall 13 and bounded by a flat bottom 14 to the rear. The outer wall 13 has on its outer peripheral surface in Fig. 1 exemplified harpoon webs 15, which allow attachment of the lamp in a pot bore of a furniture floor or the like.

In der Mitte der im wesentlichen zylindrischen Gehäuseöffnung 12 steht vom Boden 14 ein Teil 16 in Form einer Säule vor, an dessen vorderem Ende ein Gelenkkopf 18 eines Kugelgelenks angeordnet ist.In the middle of the substantially cylindrical housing opening 12 from the bottom 14 is a part 16 in the form of a column, at the front end of a condyle 18 of a ball joint is arranged.

In der Gehäuseöffnung 12 ist eine flache, runde Leuchteinheit 20 angeordnet. Die Leuchteinheit 20 ist im wesentlichen scheibenförmig mit einer flachen, linsenförmig vorgewölbten Frontseite 22 und einer flachen, d.h. sich im wesentlichen in der Breite erstreckenden, Rückseite 23, welche ebenfalls linsenförmig vorgewölbt ist.In the housing opening 12, a flat, round lighting unit 20 is arranged. The lighting unit 20 is substantially disc-shaped with a flat, lenticular bulging Front side 22 and a flat, ie substantially extending in the width, rear side 23, which is also arched lens-shaped.

In einem zentralen Bereich der Leuchteinheit 20 bildet ein Gehäuseelement 24 der Leuchteinheit 20 ein Gelenklager 26 für den Gelenkkopf 18. Der im wesentlichen kugelförmige Gelenkkopf 18 und das Gelenklager 26 bilden ein Kugelgelenk, über das die Leuchteinheit 20 in jeder Richtung relativ zur Gehäuseöffnung 12 neigbar ist. Das Gelenklager 26 wirkt dabei als den Gelenkkopf 18 umgreifende Gelenkpfanne. Das Gelenklager 26 kann den Gelenkkopf 18 über einen oder mehrere Lagerabschnitte halten.In a central region of the lighting unit 20, a housing member 24 of the light unit 20 forms a hinge bearing 26 for the condyle 18. The substantially spherical condyle 18 and the hinge bearing 26 form a ball joint over which the light unit 20 can be tilted in any direction relative to the housing opening 12 , The joint bearing 26 acts as the condyle 18 encompassing socket. The pivot bearing 26 may hold the condyle 18 via one or more bearing sections.

In Fig. 1 ist eine zentrale Achse A der Leuchteinheit 20 in einer um ca. 15° gegenüber einer zentralen Achse B der Gehäuseöffnung 12 geneigten Stellung dargestellt.In Fig. 1 a central axis A of the lighting unit 20 is shown in a tilted by about 15 ° relative to a central axis B of the housing opening 12 position.

Das Gehäuseelement 24, welches den zentralen Bereich der Leuchteinheit 20 bildet, wird nach vorne von einem lichtundurchlässigen zentralen Frontabschnitt 28 der Leuchteinheit 20 begrenzt. Unmittelbar hinter dem Frontabschnitt 28 ist das von dem Gelenkkopf 18 und dem Gelenklager 26 gebildete Kugelgelenk angeordnet. Der Gelenkkopf 18 kann beispielsweise bei der Montage des Gelenks in das Gelenklager 26 eingeclipst werden.The housing element 24, which forms the central area of the lighting unit 20, is bounded to the front by an opaque central front section 28 of the lighting unit 20. Immediately behind the front portion 28 of the condyle 18 and the pivot bearing 26 formed ball joint is arranged. The condyle 18 can be clipped into the joint bearing 26, for example during the assembly of the joint.

Der zentrale Bereich der Leuchteinheit 20 ist von einem ringscheibenförmigen Außenbereich seitlich umgeben. In diesem Außenbereich sind, von hinten nach vorne, ein Gehäuseelement 30 aus Metall, eine Trägeranordnung 32 für LEDs 34 in Form einer oder mehrerer Platinen, eine Reflektoranordnung 36 und eine transluzente oder lichtdurchlässige Abdeckung 38 angeordnet, welche eine ringförmige Lichtabgabefläche 40 an der Frontseite 22 der Leuchteinheit 20 bildet. Durch eine transluzente Abdeckung 38 kann von den LEDs 34 erzeugtes Licht gestreut und an der Lichtabgabefläche 40 abgegeben werden.The central region of the lighting unit 20 is laterally surrounded by an annular disk-shaped outer region. In this outer area, from rear to front, a housing member 30 made of metal, a support assembly 32 for LEDs 34 in the form of one or more boards, a reflector assembly 36 and a translucent or translucent cover 38 is arranged, which an annular light emitting surface 40 on the front side 22nd the lighting unit 20 forms. By means of a translucent cover 38, light generated by the LEDs 34 can be scattered and emitted at the light emission surface 40.

Es sind beispielsweise 30 LEDs 34 in Form einer ringförmigen Anordnung in einer Ebene um das Kugelgelenk und den zentralen Bereich der Leuchteinheit 20 herum angeordnet. Die Achse A bildet eine zentrale Symmetrieachse der ringförmigen Anordnung der LEDs 34. Die LEDs 34 sind um das Gelenk herum verteilt und beabstandet von demselben angeordnet. Insbesondere sind die LEDs 34 in einer den Gelenkkopf 18 schneidenden Ebene um den Gelenkkopf 18 herum verteilt angeordnet. Die LEDs 34 sind jeweils in Durchbrüchen in der Reflektoranordnung 36 aufgenommen.By way of example, 30 LEDs 34 are arranged in the form of an annular arrangement in a plane around the ball joint and the central region of the lighting unit 20. The axis A forms a central axis of symmetry of the annular arrangement of the LEDs 34. The LEDs 34 are distributed around and spaced from the hinge. In particular, the LEDs 34 are in a plane intersecting the condyle 18 distributed around the condyle 18 around. The LEDs 34 are each received in apertures in the reflector assembly 36.

Die Reflektoranordnung 36 bildet eine ringförmige Rinne mit Seitenwänden, die, ausgehend von den Positionen der LEDs 34, nach radial innen und radial außen jeweils nach vorne ansteigen, um das Licht der LEDs 34 in Richtung der Abdeckung 38 zu lenken. Zumindest die Vorderseite der Reflektoranordnung 36 ist beispielsweise durch eine Metallschicht gebildet. Die Reflektoranordnung 36 ist ein- oder mehrteilig und ist seitlich außerhalb des Gelenks 18, 26 um das Gelenk herum verlaufend angeordnet.The reflector assembly 36 forms an annular groove with sidewalls that, starting from the positions of the LEDs 34, radially inwardly and radially outwardly each rise forward to direct the light of the LEDs 34 in the direction of the cover 38. At least the front of the reflector assembly 36 is formed for example by a metal layer. The reflector assembly 36 is one or more parts and is arranged laterally outside of the joint 18, 26 extending around the hinge.

Das Gehäuseelement 30 ist beispielsweise mittels Schrauben an dem Gehäuseelement 24 befestigt, so dass bei vom Gehäuse 12 abgenommener Leuchteinheit 20 durch Lösen der Schrauben die Trägeranordnung 32 entnommen werden kann. Dies ermöglicht einen Austausch im Falle einer defekten LED. Die Trägeranordnung 32 ist ein- oder mehrteilig und hat eine mittlere Aussparung, in der das Gelenk 18, 26 angeordnet ist.The housing element 30 is fastened to the housing element 24, for example by means of screws, so that the support arrangement 32 can be removed when the light unit 20 removed from the housing 12 by loosening the screws. This allows replacement in the event of a defective LED. The carrier assembly 32 is one or more parts and has a central recess in which the hinge 18, 26 is arranged.

An der Rückseite 23 der Leuchteinheit 20 weist das Gehäuseelement 30 Kühlrippen 33 auf. Vorderseitig liegt die Trägeranordnung 32 an dem Gehäuseelement 30 an, so dass Abwärme der LEDs 34 abgeführt und über die Kühlrippen 33 abgestrahlt werden kann.At the rear side 23 of the lighting unit 20, the housing element 30 has cooling fins 33. The front side of the carrier assembly 32 is applied to the housing member 30, so that waste heat of the LEDs 34 can be dissipated and emitted via the cooling fins 33.

Das Gelenk 18, 26 liegt auf der Höhe eines maximalen Durchmessers der Leuchteinheit 20 und auf der Höhe des vorderen Randes der Gehäuseöffnung 12. Dadurch kann ein Seitwärtsschwenken der Leuchteinheit 20 beim Neigen derselben um das Gelenk minimiert werden. Außerdem kann die Leuchteinheit relativ weit in das Gehäuse 10 hineingeschwenkt werden. Der Boden 14 des Gehäuses 10 bildet einen Anschlag für die Leuchteinheit 20.The hinge 18, 26 is located at the height of a maximum diameter of the lighting unit 20 and at the level of the front edge of the housing opening 12. Thus, a sideways pivoting of the lighting unit 20 when tilting the same about the joint can be minimized. In addition, the lighting unit can be pivoted relatively far into the housing 10. The bottom 14 of the housing 10 forms a stop for the lighting unit 20th

Eine elektrische Zuleitung zu der Leuchteinheit 20 erfolgt über am Boden 14 von radial außen nach innen verlaufende Leiterbahnen 42, die auf einer Platine angeordnet sind, die in den Boden 14 eingelassen ist. Dadurch wird der Schwenkbereich der Leuchteinheit 20 im Bereich der maximalen Auslenkung durch die Zuleitung nicht oder kaum eingeschränkt. Im inneren Bereich nahe dem Teil 16 erfolgt die Zuleitung zur Leuchteinheit 20 über ein Kabel, welches mit den Leiterbahnen 42 lösbar über einen Stecker verbunden ist.An electrical supply line to the lighting unit 20 via on the bottom 14 of radially outwardly extending conductor tracks 42, which are arranged on a circuit board, which is embedded in the bottom 14. As a result, the pivoting range of the lighting unit 20 is not or hardly limited in the region of the maximum deflection by the supply line. In the inner area near the part 16, the supply line to the light unit 20 via a cable, which is connected to the conductor tracks 42 releasably connected via a plug.

Fig. 2 zeigt in einer schematischen Querschnittsansicht den Teil 16, der den Gelenkkopf 18 trägt. Der Teil 16 weist an zwei gegenüberliegenden Seiten radiale Vorsprünge 44 in Form von Stegen auf. An der Rückseite 23 der Leuchteinheit 20 sind ebenfalls Vorsprünge 46 ausgebildet, die mit den Vorsprüngen 44 zusammenwirken, um eine Drehung der Leuchteinheit 20 um die Achsen A bzw. B zu begrenzen. Die Vorsprünge 44, 46 bilden somit Drehbegrenzungsmittel für die Leuchteinheit 20 und sichern so die Kabelverbindung zur Leuchteinheit 20. Fig. 2 shows in a schematic cross-sectional view of the part 16 which carries the condyle 18. The part 16 has on two opposite sides on radial projections 44 in the form of webs. Projections 46, which cooperate with the projections 44 to limit rotation of the lighting unit 20 about the axes A and B, respectively, are also formed on the rear side 23 of the lighting unit 20. The projections 44, 46 thus form rotation limiting means for the lighting unit 20 and thus secure the cable connection to the light unit 20.

Claims (9)

Leuchte, mit einem flachen Gehäuse (10), welches an einer flachen Vorderseite eine Gehäuseöffnung (12) aufweist, und mit einer flachen Leuchteinheit (20), die über ein Gelenk (18, 26) in der Gehäuseöffnung (12) gehalten ist derart, dass die Leuchteinheit (20) über das Gelenk (18, 26) in wenigstens zwei Richtungen relativ zur Gehäuseöffnung (12) neigbar ist, wobei die Leuchteinheit (20) mehrere LED-Leuchtmittel (34) aufweist, die um eine quer zur flachen Leuchteinheit (20) verlaufende Achse (A) herum verteilt angeordnet sind, auf welcher Achse (A) das Gelenk (18, 26) angeordnet ist.Luminaire having a flat housing (10) which has a housing opening (12) on a flat front side, and a flat lighting unit (20) which is held in the housing opening (12) via a hinge (18, 26) in that the lighting unit (20) can be tilted in at least two directions relative to the housing opening (12) via the hinge (18, 26), wherein the lighting unit (20) comprises a plurality of LED lighting means (34) arranged around a transverse lighting unit ( 20) extending axis (A) are distributed around, on which axis (A), the joint (18, 26) is arranged. Leuchte nach Anspruch 1, bei der das Gelenk (18, 26) ein Kugelgelenk ist.Luminaire according to claim 1, wherein the hinge (18, 26) is a ball and socket joint. Leuchte nach einem der vorstehenden Ansprüche, bei der die Leuchteinheit (20) LED-Leuchtmittel (34) lediglich in einem Außenbereich aufweist, der einen zentralen Bereich der Leuchteinheit seitlich umgibt, wobei der zentrale Bereich nach vorne von einem Frontabschnitt (28) der Leuchteinheit begrenzt wird, hinter welchem Frontabschnitt das Gelenk (18, 26) angeordnet ist.Luminaire according to one of the preceding claims, in which the lighting unit (20) has LED lighting means (34) only in an outer area which laterally surrounds a central region of the lighting unit, the central area being bounded to the front by a front section (28) of the lighting unit is behind which front portion of the joint (18, 26) is arranged. Leuchte nach einem der vorstehenden Ansprüche, bei die Leuchte an einem Boden (14) der Gehäuseöffnung (12) einen in Richtung zur Leuchteinheit (20) vorstehenden Teil (16) aufweist, an dessen vorderem Ende das Gelenk (18, 26) angeordnet ist.Luminaire according to one of the preceding claims, wherein the light on a bottom (14) of the housing opening (12) in the direction of the light unit (20) protruding part (16), at the front end of the joint (18, 26) is arranged. Leuchte nach einem der vorstehenden Ansprüche, bei der die Leuchteinheit (20) ein Gehäuseelement (30) aus Metall aufweist, welches zumindest einen Teil einer rückseitigen Außenfläche der Leuchteinheit bildet.Luminaire according to one of the preceding claims, wherein the lighting unit (20) comprises a housing element (30) made of metal, which forms at least part of a rear-side outer surface of the lighting unit. Leuchte nach einem der vorstehenden Ansprüche, bei der die Leuchteinheit (20) wenigstens eine ringförmige Anordnung der genannten LED-Leuchtmittel (34) aufweist.Luminaire according to one of the preceding claims, wherein the lighting unit (20) has at least one annular arrangement of said LED lighting means (34). Leuchte nach einem der vorstehenden Ansprüche, bei der eine elektrische Zuleitung zur Leuchteinheit (20) wenigstens eine am Boden (14) der Gehäuseöffnung (12) von außen nach innen verlaufende Leiterbahn (42) umfasst.Luminaire according to one of the preceding claims, wherein an electrical supply line to the lighting unit (20) comprises at least one at the bottom (14) of the housing opening (12) extending from outside to inside conductor track (42). Leuchte nach einem der vorstehenden Ansprüche, bei der die Frontseite (22) der Leuchteinheit (20) linsenförmig vorgewölbt ist.Luminaire according to one of the preceding claims, wherein the front side (22) of the lighting unit (20) is lenticular bulging. Leuchte nach einem der vorstehenden Ansprüche, bei der die Leuchteinheit (20) eine ringförmige Lichtabgabefläche (40) an einer Frontseite (22) der Leuchteinheit (20) aufweist.Luminaire according to one of the preceding claims, in which the lighting unit (20) has an annular light emitting surface (40) on a front side (22) of the lighting unit (20).
EP11183769.6A 2010-10-12 2011-10-04 Light with pivotable flat light unit Active EP2442020B1 (en)

Applications Claiming Priority (1)

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DE102010038117A DE102010038117B4 (en) 2010-10-12 2010-10-12 Recessed luminaire with swiveling, flat light unit

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EP2442020A3 EP2442020A3 (en) 2013-04-10
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EP2924332A1 (en) * 2014-03-28 2015-09-30 Samsung Electronics Co., Ltd. Illumination device that switches light emission direction
WO2017060503A1 (en) * 2015-10-07 2017-04-13 Magiled (Uk) Limited Luminaire housing and luminaire
CN115751250A (en) * 2022-12-10 2023-03-07 飞德利照明科技(惠州)有限公司 Anti-dazzle mesh ceiling light

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Cited By (4)

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Publication number Priority date Publication date Assignee Title
EP2924332A1 (en) * 2014-03-28 2015-09-30 Samsung Electronics Co., Ltd. Illumination device that switches light emission direction
US9574753B2 (en) 2014-03-28 2017-02-21 Samsung Electronics Co., Ltd. Illumination device that switches light emission direction
WO2017060503A1 (en) * 2015-10-07 2017-04-13 Magiled (Uk) Limited Luminaire housing and luminaire
CN115751250A (en) * 2022-12-10 2023-03-07 飞德利照明科技(惠州)有限公司 Anti-dazzle mesh ceiling light

Also Published As

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EP2442020B1 (en) 2015-07-29
EP2442020A3 (en) 2013-04-10
DE102010038117A1 (en) 2012-04-12
DE102010038117B4 (en) 2013-02-28

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