EP2436975A1 - LED luminaire - Google Patents

LED luminaire Download PDF

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Publication number
EP2436975A1
EP2436975A1 EP11190087A EP11190087A EP2436975A1 EP 2436975 A1 EP2436975 A1 EP 2436975A1 EP 11190087 A EP11190087 A EP 11190087A EP 11190087 A EP11190087 A EP 11190087A EP 2436975 A1 EP2436975 A1 EP 2436975A1
Authority
EP
European Patent Office
Prior art keywords
led
heat sink
led module
module
lamp
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
EP11190087A
Other languages
German (de)
French (fr)
Other versions
EP2436975B1 (en
Inventor
Markus Glock
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.)
Zumtobel Lighting GmbH Austria
Zumtobel Lighting GmbH Germany
Original Assignee
Zumtobel Lighting GmbH Austria
Zumtobel Lighting GmbH Germany
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zumtobel Lighting GmbH Austria, Zumtobel Lighting GmbH Germany filed Critical Zumtobel Lighting GmbH Austria
Publication of EP2436975A1 publication Critical patent/EP2436975A1/en
Application granted granted Critical
Publication of EP2436975B1 publication Critical patent/EP2436975B1/en
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Classifications

    • 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
    • F21S8/026—Lighting devices intended for fixed installation of recess-mounted type, e.g. downlighters intended to be recessed in a ceiling or like overhead structure, e.g. suspended ceiling
    • 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
    • F21S8/03—Lighting devices intended for fixed installation of surface-mounted type
    • F21S8/038—Lighting devices intended for fixed installation of surface-mounted type intended to be mounted on a light track
    • 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
    • F21S8/04—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures
    • F21S8/043—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures mounted by means of a rigid support, e.g. bracket or arm
    • 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
    • F21V19/00—Fastening of light sources or lamp holders
    • F21V19/04—Fastening of light sources or lamp holders with provision for changing light source, e.g. turret
    • 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
    • F21V23/06—Arrangement of electric circuit elements in or on lighting devices the elements being coupling devices, e.g. connectors
    • 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
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/74—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
    • F21V29/75—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with fins or blades having different shapes, thicknesses or spacing
    • 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
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/74—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
    • F21V29/76—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical parallel planar fins or blades, e.g. with comb-like cross-section
    • F21V29/763—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical parallel planar fins or blades, e.g. with comb-like cross-section the planes containing the fins or blades having the direction of the light emitting axis
    • 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
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/74—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
    • F21V29/77—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical diverging planar fins or blades, e.g. with fan-like or star-like cross-section
    • F21V29/773—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical diverging planar fins or blades, e.g. with fan-like or star-like cross-section the planes containing the fins or blades having the direction of the light emitting axis
    • 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
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
    • F21V17/14—Bayonet-type fastening
    • 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
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
    • F21V17/16—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by deformation of parts; Snap action mounting
    • F21V17/164—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by deformation of parts; Snap action mounting the parts being subjected to bending, e.g. snap joints
    • 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
    • F21V19/00—Fastening of light sources or lamp holders
    • F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
    • 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
    • F21V21/34—Supporting elements displaceable along a guiding element
    • 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
    • F21V23/02—Arrangement of electric circuit elements in or on lighting devices the elements being transformers, impedances or power supply units, e.g. a transformer with a rectifier
    • F21V23/026—Fastening of transformers or ballasts
    • 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 an LED lamp (LED: light-emitting diode) with an LED module and a heat sink for the LED module.
  • LED module has at least one LED as the lighting means.
  • LED lights are known from the prior art.
  • the complete luminaire is usually renewed.
  • a part of the lamp, namely the heat sink is replaced, although this is still functional in itself.
  • Even with the desire to change the optical properties of the LED light so if, for example, a different colored emission light is desired, usually the entire LED light is replaced.
  • the invention is based on the object to provide an LED lamp with improved options for influencing the radiation behavior of the lamp, as well as with improved maintenance and repair options.
  • an LED light which has an LED module with at least one LED as the light source and a heat sink, wherein the LED module for dissipating heat, which can be generated by the LED, is thermally connected to the heat sink , Furthermore, the LED lamp has means for tool-free release and restore the connection between the LED module and the heat sink.
  • the means for tool-free release and restore the connection between the LED module and the heat sink is made possible that in case of a defect of the LED module, only this is replaced.
  • the LED lamp can be particularly easily maintained, because by releasing the LED module from the heat sink accessibility to the LED module, as well as to those areas of LED module and heat sink is provided, which are provided for mutual contact.
  • the means are designed such that the connection can be achieved by a relative rotational movement and a relative translational movement between the LED module and the heat sink and / or restored.
  • the means may comprise a bayonet closure or consist of a bayonet closure. In this way it can be achieved that in the connected state, the LED module is pressed against the heat sink, which is conducive to the heat transfer from the LED module to the heat sink.
  • a bayonet closure comprises two pin-like elements, over which also a good heat conduction is possible.
  • the two pin-like elements can be used as electrical contacts for powering the LED.
  • the means may comprise a so-called, known in the prior art, GU10 socket, which is preferably provided on the heat sink.
  • GU10 socket which is preferably provided on the heat sink.
  • the heat transfer is further promoted when the LED module has a module surface and the heat sink has a heat sink surface, such that in the connected state, the module surface the heat sink surface area contacted.
  • the LED module has an outer surface which forms an outer surface of the LED lamp in the connected state.
  • the outer surface of the LED module may be a cylindrical surface; in this case can By varying the length, the size of the surface can be easily adapted to the specific requirements with regard to the heat output of the LED module.
  • the LED light on an optical element for example, a Entblendungstubus or a reflector, wherein the optical element is held on the LED module, that it can be solved without tools from the LED module reversible.
  • a particularly simple possibility is given when the optical element is fastened by means of a latching connection to the LED module.
  • the possibilities of changing the radiated light can be further increased if the optical element is pivotally held on the LED module.
  • Particularly advantageous is the arrangement such that the optical element with respect to the LED module can be rotated by 360 °.
  • the LED lamp further comprises a lamp operating device, wherein the lamp operating device is preferably connected via a support arm to the heat sink and / or to the LED module.
  • the LED light is particularly advantageous if it is an LED spotlight or an LED downlight.
  • Fig. 1 is a schematic view of a first embodiment of an LED lamp 1 according to the invention shown.
  • the LED light 1 has an LED module 2 with at least one LED as the light source and a heat sink 3, wherein the LED module 2 for dissipating heat, which can be generated by the LED, is thermally connected to the heat sink 3.
  • the heat sink 3 may have cooling fins.
  • the LED lamp 1 further comprises means for tool-free release and restore the connection between the LED module 2 and the heat sink 3.
  • the LED module 2 can be easily replaced without the aid of a tool, without a change of the entire LED lamp 1 would be required.
  • replacement of the LED module 2 may be desirable to obtain other lighting characteristics, such as light in a different color. Even with a defect of a part of the LED module 2, such as the LED, an exchange may be desired.
  • the means are adapted to solve the connection by a relative rotational movement and a relative translational movement between the LED module 2 and the heat sink 3 and / or restore, wherein the means comprise a bayonet closure or may be formed as such.
  • the means comprise a bayonet closure or may be formed as such.
  • FIGS. 1 to 5 are the means for tool-free release and restore the connection between the LED module 2 and the heat sink 3 indicated only very schematically.
  • They may comprise two pin-like elements 10, 11 as parts of a bayonet catch, which are preferably arranged on the LED module 2 are and are intended to be used in appropriate (in the FIGS. 1 to 5 not shown) recesses in the heat sink 3 intervene.
  • the heat sink 3 for this purpose comprise a per se known from the prior art, so-called GU10-version. This makes it possible that the connection between the LED module 2 and the heat sink 3 can be achieved by a sequence of movements, which is already familiar to many users as such.
  • the two pin-like elements 10, 11 may be provided as power contacts for the power supply from the heat sink to the LED module 2 for powering the LED.
  • the LED module 2 a in the FIGS. 3 and 5 Have designated module surface 6 and the heat sink in the FIGS. 3 and 4 Have designated heat sink surface 7, such that in the connected state, the module surface 6, the heat sink surface 7 contacted surface.
  • the two pin-like elements 10, 11 may be arranged directly on the module surface 6 and the corresponding (in Fig. 4 not shown) recesses on the heat sink surface. 7
  • the LED module 2 has an outer surface 14, which forms an outer surface of the LED lamp 1 in the connected state.
  • this outer surface 14 of the LED module 2 may be a cylindrical, for example, circular cylindrical outer surface. Heat which can be generated by the LED during operation of the LED lamp can also be emitted to the outside via this outer surface 14.
  • the cooling body 3 is also cylindrical, for example, circular cylindrical shape, wherein the two cylindrical shapes of LED module 2 on the one hand and the heat sink 3 on the other hand have the same radius. It can be provided that the LED module 2 - seen in the direction of the corresponding cylinder main axis - at least half as long as the heat sink. 3
  • the LED module 2 may have in its interior a circuit board on which the at least one LED is arranged or a plurality of LEDs are arranged.
  • the board is connected with good thermal conductivity with the outer surface 14.
  • a thermal compound can be used for this purpose.
  • copper pins may be provided to transfer heat from the LED to the outer surface 14. Copper pins can also or alternatively be provided to conduct heat from the LED to the module surface 6 in order to improve the heat flow to the heat sink 3 in this way.
  • the LED lamp 1 can have an optical element, for example a glare tube 4 or a reflector, wherein the optical element is held on the LED module 2 such that it can be reversibly released from the LED module 2 without tools.
  • the luminous properties of the LED lamp 1 can be further influenced in a simple manner.
  • the optical element 4 is held by means of a latching connection to the LED module 2.
  • Particularly good possibilities of influencing the luminous properties result when the optical element 4 is held pivotably on the LED module 2.
  • the Entblendungstubus as indicated in the figures, be designed asymmetrically so that a rotation of the Entblendungstubusses relative to the LED module 2, a change in direction of the emitted light can be effected.
  • the optical element 4 with respect to the LED module 2 is rotatable by 360 °.
  • a preferably circular recess can be provided, into which the optical element 4 or the defibrillating tube can be snapped and rotated relative to the LED module 2.
  • a lens 5 between the LED module 2 and the optical element 4 can be arranged, wherein the lens 5 in the interior of the LED module 2 may be provided protruding.
  • a plurality of different lenses 5, 5 ', 5 " be provided so that by appropriate Change the light properties can be changed.
  • the different lenses may cause different emission aperture angles; as exemplified in Fig. 6 shown, the first lens 5 can cause an opening angle of 8 ° to 10 °, a second lens 5 'an opening angle about 20 ° and a third lens 5 "an opening angle about 40 °.
  • the LED lamp 1 shown above may be formed as an LED spotlight.
  • the LED light 1 as in the FIGS. 1 to 5 and 7 indicated, having a support arm 20 which is connected on the one hand with the heat sink 2 and on the other hand with a in Fig. 7 exemplarily shown lamp operating device 25, which may represent another component of the LED lamp and may be connected via power lines to the LED module 2.
  • a first articulated connection 21 may be provided at the transition point between the support arm 20 and the lamp operating device 25, a second articulated connection 22.
  • the first articulated connection 21 may, for example, for pivoting of the heat sink. 3 be provided about a horizontal axis
  • the first articulated connection 21 is arranged at that edge of the heat sink 3, which points in the emission direction.
  • the support arm 20 is bent in such a way that the vertical axis of the second articulated connection 22 extends through the heat sink 3.
  • a pivoting of the heat sink 3 is made possible, which requires very little space for movement.
  • the support arm 20 may alternatively or additionally also be connected on the one hand to the lamp operating device 25 and on the other hand to the LED module 2.
  • a plurality of LED lights 1, 1 ' may be provided, which are connected via a preferably current-carrying rail 26, wherein, for example, each of the LED lights 1, 1' may be connected to its own lamp operating device 25,25 '.
  • FIGS. 9 to 11 a second embodiment is shown in outline.
  • the reference numerals are used in accordance with the above representations. In the following, only differences to the first embodiment will be discussed. Unless otherwise stated, the above descriptions also apply to the second embodiment.
  • the cooling body 3 has cooling ribs which are shaped substantially radially symmetrically and differ from those of the cooling body of the first exemplary embodiment in this respect.
  • the cooling fins are arranged substantially parallel.
  • the support arm 20 acts on that edge of the heat sink 3, which faces the emission direction.
  • FIGS. 9 to 11 is exemplified a lamp operating device 25 outlined; this can be mounted on a rail 26 in which power lines for powering the lamp operating device 25 can run.
  • Fig. 10 7 recesses 16, 17 are sketched on the heat sink surface, in which the pin-like elements 10, 11 of the LED module 3 can intervene. It can therefore be provided for powering the at least one LED of the LED module 2 power cables extending from the lamp operating device 25, for example, within the support arm 20 extending to the recesses 16, 17 on the heat sink surface 7. In the LED module 2, further power cables can then run from the pin-like elements 10, 11 to the at least one LED.
  • the lamp operating device 25 may be provided for switching and / or dimming the LED of the LED module 2.
  • the lens 5 can be arranged latching in the second embodiment, regardless of a Entblendungstubus or other optical element on the LED module 2.
  • Fig. 12 exemplified is the case in which three LED lights are connected via a rail 26.
  • Figures 13a, 13b and 13c three views of the LED lamp including the lamp operating device 25 are shown, wherein the lamp is removed from the rail 26.
  • the first articulated connection 21 can be provided for a pivoting range of 90 ° and the second articulated connection 22 for a pivoting range of 360 °.
  • elements of the two embodiments can be combined to obtain a further LED light;
  • a further LED light can be provided for the second embodiment, a Entblendungstubus, as shown in the first embodiment, etc.
  • the LED lamp according to the invention can be designed as LED downlight.
  • the LED module 2 and the associated heat sink 3 can be arranged on the back of a mounting ring 30.
  • the mounting ring 30 can be arranged in an opening of a ceiling element 31.
  • an articulated connection 32 between the mounting ring 30 and the heat sink 3 may be provided.
  • FIGS. 15a and 15b is the downlight at - compared to in the Figures 14a and 14b shown case - changed set emission direction shown, so with changed setting of the articulated connection 32nd
  • FIGS. 16a and 16b corresponding cross sections are sketched.

Abstract

The light (1) has a LED module (2) comprising a LED as an illuminant, and a heat sink (3). The LED module is thermally connected to the heat sink for discharging heat produced by the LED. A loosening and restoring unit is provided for toolless loosening and restoring of connection between the LED module and the heat sink. The restoring unit has a bayonet coupling with two pin-like elements. The LED module has a module surface and the heat sink has a heat sink surface, where the module surface laminarly contacts the heat sink surface in a connected condition.

Description

Die Erfindung betrifft eine LED-Leuchte (LED: Lichtemittierende Diode) mit einem LED-Modul und einem Kühlkörper für das LED-Modul. Das LED-Modul weist wenigstens eine LED als Leuchtmittel auf.The invention relates to an LED lamp (LED: light-emitting diode) with an LED module and a heat sink for the LED module. The LED module has at least one LED as the lighting means.

Derartige LED-Leuchten sind aus dem Stand der Technik bekannt. Bei einem Defekt des LED-Moduls wird üblicherweise die komplette Leuchte erneuert. Hierbei wird somit ein Teil der Leuchte, und zwar der Kühlkörper ersetzt, obwohl dieser an sich noch funktionsfähig ist. Auch bei dem Wunsch, die optischen Eigenschaften der LED-Leuchte zu verändern, wenn also beispielsweise ein andersfarbiges Abstrahllicht gewünscht ist, wird zumeist einfach die gesamte LED-Leuchte ausgetauscht.Such LED lights are known from the prior art. In the event of a defect in the LED module, the complete luminaire is usually renewed. In this case, a part of the lamp, namely the heat sink is replaced, although this is still functional in itself. Even with the desire to change the optical properties of the LED light, so if, for example, a different colored emission light is desired, usually the entire LED light is replaced.

Der Erfindung liegt die Aufgabe zu Grunde, eine LED-Leuchte mit verbesserten Möglichkeiten zur Einflussnahme auf das Abstrahlverhalten der Leuchte, sowie mit verbesserten Wartungs- und Reparaturmöglichkeiten anzugeben.The invention is based on the object to provide an LED lamp with improved options for influencing the radiation behavior of the lamp, as well as with improved maintenance and repair options.

Diese Aufgabe wird gemäß der Erfindung mit dem in dem unabhängigen Anspruch genannten Gegenstand gelöst. Besondere Ausführungsarten sind in den abhängigen Ansprüchen angegeben.This object is achieved according to the invention with the object mentioned in the independent claim. Particular embodiments are specified in the dependent claims.

Gemäß der Erfindung ist eine LED-Leuchte vorgesehen, die ein LED-Modul mit wenigstens einer LED als Leuchtmittel und einen Kühlkörper aufweist, wobei das LED-Modul zur Abfuhr von Wärme, die durch die LED erzeugt werden kann, thermisch mit dem Kühlkörper verbunden ist. Weiterhin weist die LED-Leuchte Mittel zum werkzeuglosen Lösen und Wiederherstellen der Verbindung zwischen dem LED-Modul und dem Kühlkörper auf.According to the invention, an LED light is provided which has an LED module with at least one LED as the light source and a heat sink, wherein the LED module for dissipating heat, which can be generated by the LED, is thermally connected to the heat sink , Furthermore, the LED lamp has means for tool-free release and restore the connection between the LED module and the heat sink.

Durch die Mittel zum werkzeuglosen Lösen und Wiederherstellen der Verbindung zwischen dem LED-Modul und dem Kühlkörper wird ermöglicht, dass bei einem Defekt des LED-Moduls lediglich dieses ersetzt wird. Der Kühlkörper, sowie gegebenenfalls weitere Bauteile der LED-Leuchte, beispielsweise ein Betriebsgerät und Stromkabel, können am Aufstellort der LED-Leuchte in montiertem Zustand verbleiben. Auch ein Wechsel des LED-Moduls durch ein anderes LED-Modul, das beispielsweise andere optische Eigenschaften aufweist, ist hierdurch auf einfache Weise möglich. Außerdem kann die LED-Leuchte besonders leicht gewartet werden, weil durch ein Lösen des LED-Moduls von dem Kühlkörper die Zugänglichkeit zu dem LED-Modul, sowie zu denjenigen Bereichen von LED-Modul und Kühlkörper verbessert wird, die zum gegenseitigen Kontakt vorgesehen sind.The means for tool-free release and restore the connection between the LED module and the heat sink is made possible that in case of a defect of the LED module, only this is replaced. The heat sink, as well If necessary, further components of the LED light, such as a control gear and power cable, can remain at the installation of the LED light in the assembled state. Also, a change of the LED module by another LED module, for example, has other optical properties, this is possible in a simple manner. In addition, the LED lamp can be particularly easily maintained, because by releasing the LED module from the heat sink accessibility to the LED module, as well as to those areas of LED module and heat sink is provided, which are provided for mutual contact.

Vorteilhaft sind dabei die Mittel derart ausgebildet sind, dass die Verbindung durch eine relative Drehbewegung und eine relative Translationsbewegung zwischen dem LED-Modul und dem Kühlkörper gelöst und/oder wiederhergestellt werden kann. Beispielsweise können die Mittel einen Bajonettverschluss umfassen oder aus einem Bajonettverschluss bestehen. Auf diese Weise lässt sich erzielen, dass im verbundenen Zustand das LED-Modul gegen den Kühlkörper gedrückt wird, was für die Wärmeübertragung von dem LED-Modul zu dem Kühlkörper förderlich ist. Außerdem umfasst ein Bajonettverschluss zwei stiftartige Elemente, über die ebenfalls eine gute Wärmeleitung ermöglicht ist. Zudem können die beiden stiftartigen Elemente als elektrische Kontakte zur Stromversorgung der LED verwendet werden.Advantageously, the means are designed such that the connection can be achieved by a relative rotational movement and a relative translational movement between the LED module and the heat sink and / or restored. For example, the means may comprise a bayonet closure or consist of a bayonet closure. In this way it can be achieved that in the connected state, the LED module is pressed against the heat sink, which is conducive to the heat transfer from the LED module to the heat sink. In addition, a bayonet closure comprises two pin-like elements, over which also a good heat conduction is possible. In addition, the two pin-like elements can be used as electrical contacts for powering the LED.

Beispielsweise können die Mittel eine so genannte, an sich aus dem Stand der Technik bekannte, GU10-Fassung umfassen, die vorzugsweise an dem Kühlkörper vorgesehen ist. Hierdurch wird es für einen Nutzer möglich, durch eine einfache und ihm möglicherweise bereits vertraute Bewegungsabfolge das LED-Modul von dem Kühlkörper zu lösen bzw. die beiden Teile miteinander zu verbinden.For example, the means may comprise a so-called, known in the prior art, GU10 socket, which is preferably provided on the heat sink. This makes it possible for a user to solve by a simple and possibly already familiar sequence of movements, the LED module from the heat sink or connect the two parts together.

Die Wärmeübertragung wird weiterhin gefördert, wenn das LED-Modul eine Modul-Fläche aufweist und der Kühlkörper eine Kühlkörper-Fläche aufweist, derart dass im verbundenen Zustand die Modul-Fläche die Kühlkörper-Fläche flächig kontaktiert.The heat transfer is further promoted when the LED module has a module surface and the heat sink has a heat sink surface, such that in the connected state, the module surface the heat sink surface area contacted.

Weiterhin vorteilhaft weist das LED-Modul eine Außenfläche auf, die im verbundenen Zustand eine Außenfläche der LED-Leuchte bildet. Auch auf diese Weise wird der Wärmeabtransport von dem LED-Modul gefördert. Beispielsweise kann die Außenfläche des LED-Moduls eine zylinderförmige Fläche sein; in diesem Fall kann die Größe der Fläche durch Variieren der Länge leicht den jeweils spezifischen Anforderungen hinsichtlich der Wärmeabgabe des LED-Moduls angepasst werden.Further advantageously, the LED module has an outer surface which forms an outer surface of the LED lamp in the connected state. In this way, the heat dissipation is promoted by the LED module. For example, the outer surface of the LED module may be a cylindrical surface; in this case can By varying the length, the size of the surface can be easily adapted to the specific requirements with regard to the heat output of the LED module.

Weiterhin vorteilhaft weist die LED-Leuchte ein optisches Element auf, beispielsweise einen Entblendungstubus oder einen Reflektor, wobei das optische Element derart an dem LED-Modul gehalten ist, dass es ohne Werkzeug von dem LED-Modul reversibel gelöst werden kann. Hierdurch wird ermöglicht, dass auf einfache Weise die Lichtabgabe von der LED-Leuchte verändert bzw. weitergehend beeinflusst werden kann. Eine besonders einfache Möglichkeit ist gegeben, wenn das optische Element mittels einer Rastverbindung an dem LED-Modul befestigt ist.Further advantageously, the LED light on an optical element, for example, a Entblendungstubus or a reflector, wherein the optical element is held on the LED module, that it can be solved without tools from the LED module reversible. This makes it possible to easily change the light output from the LED light or can be further influenced. A particularly simple possibility is given when the optical element is fastened by means of a latching connection to the LED module.

Die Möglichkeiten der Veränderung des abgestrahlten Lichts lassen sich weiterhin vermehren, wenn das optische Element schwenkbar an dem LED-Modul gehalten ist. Besonders vorteilhaft ist die Anordnung derart, dass das optische Element gegenüber dem LED-Modul um 360° gedreht werden kann.The possibilities of changing the radiated light can be further increased if the optical element is pivotally held on the LED module. Particularly advantageous is the arrangement such that the optical element with respect to the LED module can be rotated by 360 °.

Vorteilhaft weist die LED-Leuchte weiterhin ein Lampenbetriebsgerät auf, wobei das Lampenbetriebsgerät vorzugsweise über einen Tragarm mit dem Kühlkörper und/oder mit dem LED-Modul verbunden ist.Advantageously, the LED lamp further comprises a lamp operating device, wherein the lamp operating device is preferably connected via a support arm to the heat sink and / or to the LED module.

Die LED-Leuchte ist besonders vorteilhaft, wenn sie ein LED-Strahler oder ein LED-Downlight ist.The LED light is particularly advantageous if it is an LED spotlight or an LED downlight.

Die Erfindung wird im Folgenden anhand eines Ausführungsbeispiels und mit Bezug auf die Zeichnungen näher erläutert. Es zeigen:

Fig. 1
eine schematische perspektivische Ansicht eines ersten Ausführungsbeispiels einer erfindungsgemäßen LED-Leuchte in Form eines LED-Strahlers,
Fig. 2
eine Ansicht wie Fig. 1, jedoch mit abgenommenem Entblendungstubus,
Fig. 3
eine schematische Ansicht voneinander getrennter Bauelemente der LED-Leuchte,
Figuren 4 und 5
Ansichten wie Fig. 3, jedoch aus anderen Perspektiven,
Fig. 6
eine skizzenhafte Ansicht verschiedener Linsen für die LED-Leuchte,
Fig. 7
eine weitere Ansicht der LED-Leuchte, mit Lampenbetriebsgerät,
Fig. 8
zwei LED-Leuchten an einer gemeinsamen Stromschiene,
Fig. 9
eine schematische Ansicht voneinander getrennter Bauelemente eines zweiten Ausführungsbeispiels einer erfindungsgemäßen LED-Leuchte,
Figuren 10 und 11
weitere Ansichten des zweiten Ausführungsbeispiels,
Fig. 12
drei LED-Leuchten gemäß dem zweiten Ausführungsbeispiel an einer gemeinsamen Stromschiene,
Figuren 13a, 13b, 13c
drei Ansichten des zweiten Ausführungsbeispiels, einschließlich Lampenbetriebsgerät, aus unterschiedlichen Richtungen,
Fig. 14a
eine Ansicht eines dritten Ausführungsbeispiels, bei dem die LED-Leuchte als Downlight ausgebildet ist,
Fig. 14b
eine weitere Ansicht der in Fig. 14a gezeigten Leuchte, mit angedeuteter Decke, in der die Leuchte eingebaut ist,
Figuren 15a und 15b
zwei weitere Ansichten des dritten Ausführungsbeispiels bei verändert eingestelltem Abstrahlwinkel, den Figuren 14a und 14b entsprechend, und
Figuren 16a und 16b
zwei schematische Querschnitte durch das dritte Ausführungsbeispiel.
The invention is explained in more detail below with reference to an embodiment and with reference to the drawings. Show it:
Fig. 1
3 is a schematic perspective view of a first exemplary embodiment of an LED luminaire according to the invention in the form of an LED radiator,
Fig. 2
a view like Fig. 1 , but with removed blinding tube,
Fig. 3
a schematic view of separate components of the LED light,
FIGS. 4 and 5
Views like Fig. 3 but from different perspectives,
Fig. 6
a sketchy view of different lenses for the LED light,
Fig. 7
another view of the LED lamp, with lamp operating device,
Fig. 8
two LED lights on a common busbar,
Fig. 9
a schematic view of separate components of a second embodiment of an LED lamp according to the invention,
FIGS. 10 and 11
further views of the second embodiment,
Fig. 12
three LED lights according to the second embodiment on a common busbar,
Figures 13a, 13b, 13c
three views of the second embodiment, including lamp operating device, from different directions,
Fig. 14a
a view of a third embodiment, in which the LED light is designed as a downlight,
Fig. 14b
another view of the in Fig. 14a shown lamp, with indicated ceiling, in which the lamp is installed,
FIGS. 15a and 15b
two further views of the third embodiment with changed set radiation angle, the Figures 14a and 14b accordingly, and
FIGS. 16a and 16b
two schematic cross sections through the third embodiment.

In Fig. 1 ist eine schematische Ansicht eines ersten Ausführungsbeispiels einer erfindungsgemäßen LED-Leuchte 1 dargestellt. Die LED-Leuchte 1 weist ein LED-Modul 2 mit wenigstens einer LED als Leuchtmittel und einen Kühlkörper 3 auf, wobei das LED-Modul 2 zur Abfuhr von Wärme, die durch die LED erzeugt werden kann, thermisch mit dem Kühlkörper 3 verbunden ist. Wie an sich bekannt und in den Figuren angedeutet, kann der Kühlkörper 3 Kühlrippen aufweisen.In Fig. 1 is a schematic view of a first embodiment of an LED lamp 1 according to the invention shown. The LED light 1 has an LED module 2 with at least one LED as the light source and a heat sink 3, wherein the LED module 2 for dissipating heat, which can be generated by the LED, is thermally connected to the heat sink 3. As is known per se and indicated in the figures, the heat sink 3 may have cooling fins.

Die LED-Leuchte 1 weist weiterhin Mittel zum werkzeuglosen Lösen und Wiederherstellen der Verbindung zwischen dem LED-Modul 2 und dem Kühlkörper 3 auf. Auf diese Weise kann das LED-Modul 2 auf einfache Weise, ohne Zuhilfenahme eines Werkzeugs, ausgetauscht werden, ohne dass ein Wechsel der gesamten LED-Leuchte 1 erforderlich wäre. Ein Austausch des LED-Moduls 2 kann beispielsweise erwünscht sein, um andere Leuchteigenschaften zu erhalten, beispielsweise Licht in einer anderen Farbe. Auch bei einem Defekt eines Teils des LED-Moduls 2, beispielsweise der LED, kann ein Austausch erwünscht sein.The LED lamp 1 further comprises means for tool-free release and restore the connection between the LED module 2 and the heat sink 3. In this way, the LED module 2 can be easily replaced without the aid of a tool, without a change of the entire LED lamp 1 would be required. For example, replacement of the LED module 2 may be desirable to obtain other lighting characteristics, such as light in a different color. Even with a defect of a part of the LED module 2, such as the LED, an exchange may be desired.

Beim bezeigten Ausführungsbeispiel sind die Mittel dazu ausgebildet, die Verbindung durch eine relative Drehbewegung und eine relative Translationsbewegung zwischen dem LED-Modul 2 und dem Kühlkörper 3 zu lösen und/oder wiederherzustellen, wobei die Mittel einen Bajonettverschluss umfassen bzw. als solcher ausgebildet sein können. Durch einen Bajonettverschluss kann im verbundenen Zustand das LED-Modul 2 gegen den Kühlkörper 3 gedrückt sein, wodurch ein besonders guter Wärmeübergang von dem LED-Modul 2 zu dem Kühlkörper 3 ermöglicht ist.In the illustrated embodiment, the means are adapted to solve the connection by a relative rotational movement and a relative translational movement between the LED module 2 and the heat sink 3 and / or restore, wherein the means comprise a bayonet closure or may be formed as such. By a bayonet closure, the LED module 2 can be pressed against the heat sink 3 in the connected state, whereby a particularly good heat transfer from the LED module 2 to the heat sink 3 is made possible.

In den Figuren 1 bis 5 sind die Mittel zum werkzeuglosen Lösen und Wiederherstellen der Verbindung zwischen dem LED-Modul 2 und dem Kühlkörper 3 nur sehr schematisch angedeutet. Sie können zwei stiftartige Elemente 10, 11 als Teile eines Bajonettverschlusses umfassen, die vorzugsweise an dem LED-Modul 2 angeordnet sind und die dafür vorgesehen sind, in entsprechende (in den Figuren 1 bis 5 nicht gezeigte) Ausnehmungen in dem Kühlkörper 3 einzugreifen. Beispielsweise kann der Kühlkörper 3 hierfür eine an sich aus dem Stand der Technik bekannte, so genannte GU10-Fassung umfassen. Hierdurch wird ermöglicht, dass die Verbindung zwischen dem LED-Modul 2 und dem Kühlkörper 3 durch eine Bewegungsabfolge erzielt werden kann, die vielen Nutzern bereits als solche vertraut ist. Außerdem können die beiden stiftartigen Elemente 10, 11 als Stromkontakte für die Stromzufuhr von dem Kühlkörper zu dem LED-Modul 2 zur Stromversorgung der LED vorgesehen sein.In the FIGS. 1 to 5 are the means for tool-free release and restore the connection between the LED module 2 and the heat sink 3 indicated only very schematically. They may comprise two pin-like elements 10, 11 as parts of a bayonet catch, which are preferably arranged on the LED module 2 are and are intended to be used in appropriate (in the FIGS. 1 to 5 not shown) recesses in the heat sink 3 intervene. For example, the heat sink 3 for this purpose comprise a per se known from the prior art, so-called GU10-version. This makes it possible that the connection between the LED module 2 and the heat sink 3 can be achieved by a sequence of movements, which is already familiar to many users as such. In addition, the two pin-like elements 10, 11 may be provided as power contacts for the power supply from the heat sink to the LED module 2 for powering the LED.

Zur besonders guten Wärmeleitung kann das LED-Modul 2 eine in den Figuren 3 und 5 bezeichnete Modul-Fläche 6 aufweisen und der Kühlkörper eine in den Figuren 3 und 4 bezeichnete Kühlkörper-Fläche 7 aufweisen, derart dass im verbundenen Zustand die Modul-Fläche 6 die Kühlkörper-Fläche 7 flächig kontaktiert.For particularly good heat conduction, the LED module 2 a in the FIGS. 3 and 5 Have designated module surface 6 and the heat sink in the FIGS. 3 and 4 Have designated heat sink surface 7, such that in the connected state, the module surface 6, the heat sink surface 7 contacted surface.

Insbesondere können die beiden stiftartigen Elemente 10, 11 unmittelbar an der Modul-Fläche 6 angeordnet sein und die entsprechenden (in Fig. 4 nicht eingezeichneten) Ausnehmungen an der Kühlkörper-Fläche 7.In particular, the two pin-like elements 10, 11 may be arranged directly on the module surface 6 and the corresponding (in Fig. 4 not shown) recesses on the heat sink surface. 7

Beim gezeigten Ausführungsbeispiel weist das LED-Modul 2 eine Außenfläche 14 auf, die im verbundenen Zustand eine Außenfläche der LED-Leuchte 1 bildet. Beispielsweise kann diese Außenfläche 14 des LED-Moduls 2 eine zylindrische, beispielsweise kreiszylindrische Außenfläche sein. Auch über diese Außenfläche 14 kann Wärme, die von der LED im Betrieb der LED-Leuchte erzeugt werden kann, nach außen abgegeben werden.In the embodiment shown, the LED module 2 has an outer surface 14, which forms an outer surface of the LED lamp 1 in the connected state. For example, this outer surface 14 of the LED module 2 may be a cylindrical, for example, circular cylindrical outer surface. Heat which can be generated by the LED during operation of the LED lamp can also be emitted to the outside via this outer surface 14.

Wie aus den Figuren 1 bis 5 ersichtlich, kann der Kühlkörper 3 ebenfalls zylindrisch, beispielsweise kreiszylindrisch geformt sein, wobei die beiden Zylinderformen von LED-Modul 2 einerseits und Kühlkörper 3 andererseits denselben Radius aufweisen. Dabei kann vorgesehen sein, dass das LED-Modul 2 - in der Richtung der entsprechenden Zylinderhauptachse gesehen - zumindest halb so lang ist wie der Kühlkörper 3.Like from the FIGS. 1 to 5 can be seen, the cooling body 3 is also cylindrical, for example, circular cylindrical shape, wherein the two cylindrical shapes of LED module 2 on the one hand and the heat sink 3 on the other hand have the same radius. It can be provided that the LED module 2 - seen in the direction of the corresponding cylinder main axis - at least half as long as the heat sink. 3

Das LED-Modul 2 kann in seinem Inneren eine Platine aufweisen, auf der die wenigstens eine LED angeordnet ist bzw. mehrere LEDs angeordnet sind. Vorteilhaft ist in diesem Fall die Platine gut wärmeleitend mit der Außenfläche 14 verbunden. Beispielsweise kann hierfür eine Wärmeleitpaste verwendet werden. Auch können Kupferstifte vorgesehen sein, um Wärme von der LED zur Außenfläche 14 zu übertragen. Kupferstifte können auch oder alternativ dafür vorgesehen sein, Wärme von der LED zur Modulfläche 6 zu leiten, um auf diese Weise den Wärmefluss zum Kühlkörper 3 hin zu verbessern.The LED module 2 may have in its interior a circuit board on which the at least one LED is arranged or a plurality of LEDs are arranged. Advantageous In this case, the board is connected with good thermal conductivity with the outer surface 14. For example, a thermal compound can be used for this purpose. Also, copper pins may be provided to transfer heat from the LED to the outer surface 14. Copper pins can also or alternatively be provided to conduct heat from the LED to the module surface 6 in order to improve the heat flow to the heat sink 3 in this way.

Weiterhin kann die LED-Leuchte 1 optisches Element aufweisen, beispielsweise einen Entblendungstubus 4 oder einen Reflektor, wobei das optische Element derart an dem LED-Modul 2 gehalten ist, dass es ohne Werkzeug von dem LED-Modul 2 reversibel gelöst werden kann. Dadurch lassen sich die Leuchteigenschaften der LED-Leuchte 1 auf einfache Weise weitergehend beeinflussen.Furthermore, the LED lamp 1 can have an optical element, for example a glare tube 4 or a reflector, wherein the optical element is held on the LED module 2 such that it can be reversibly released from the LED module 2 without tools. As a result, the luminous properties of the LED lamp 1 can be further influenced in a simple manner.

Beispielsweise kann vorgesehen sein, dass das optische Element 4 mittels einer Rastverbindung an dem LED-Modul 2 gehalten ist. Besonders gute Beeinflussungsmöglichkeiten der Leuchteigenschaften ergeben sich, wenn das optische Element 4 schwenkbar an dem LED-Modul 2 gehalten ist. Beispielsweise kann der Entblendungstubus, wie in den Figuren angedeutet, unsymmetrisch gestaltet sein, so dass durch eine Verdrehung des Entblendungstubusses relativ zu dem LED-Modul 2 eine Richtungsänderung des abgestrahlten Lichts bewirkt werden kann. Dementsprechend vorteilhaft ist das optische Element 4 gegenüber dem LED-Modul 2 um 360° drehbar.For example, it can be provided that the optical element 4 is held by means of a latching connection to the LED module 2. Particularly good possibilities of influencing the luminous properties result when the optical element 4 is held pivotably on the LED module 2. For example, the Entblendungstubus, as indicated in the figures, be designed asymmetrically so that a rotation of the Entblendungstubusses relative to the LED module 2, a change in direction of the emitted light can be effected. Accordingly, advantageously, the optical element 4 with respect to the LED module 2 is rotatable by 360 °.

Beispielsweise kann im Randbereich des LED-Moduls 2, der zur Abstrahlrichtung hin weist, eine vorzugsweise kreisförmige Ausnehmung vorgesehen sein, in welche das optische Element 4 bzw. der Entblendungstubus aufgeschnappt und gegenüber dem LED-Modul 2 verdreht werden kann.For example, in the edge region of the LED module 2, which points towards the emission direction, a preferably circular recess can be provided, into which the optical element 4 or the defibrillating tube can be snapped and rotated relative to the LED module 2.

Wie in den Figuren 3 bis 5 angedeutet, kann zur weitergehenden Verbesserung der Möglichkeiten zur Beeinflussung der Abstrahlung der LED-Leuchte 1 vorgesehen sein, dass eine Linse 5 zwischen dem LED-Modul 2 und dem optischen Element 4 angeordnet werden kann, wobei die Linse 5 in das Innere des LED-Moduls 2 hineinragend vorgesehen sein kann. Wie in Fig. 6 angedeutet, können mehrere unterschiedliche Linsen 5, 5', 5", vorgesehen sein, so dass durch entsprechenden Wechsel die Leuchteigenschaften verändert werden können. Beispielsweise können die unterschiedlichen Linsen unterschiedliche Abstrahl-Öffnungswinkel bewirken; wie exemplarisch in Fig. 6 gezeigt, kann die erste Linse 5 einen Öffnungswinkel von 8° bis 10° bewirken, eine zweite Linse 5' einen Öffnungswinkel ca. 20° und eine dritte Linse 5" einen Öffnungswinkel ca. 40°.As in the FIGS. 3 to 5 indicated, can be provided to further improve the possibilities for influencing the emission of the LED light 1 that a lens 5 between the LED module 2 and the optical element 4 can be arranged, wherein the lens 5 in the interior of the LED module 2 may be provided protruding. As in Fig. 6 indicated, a plurality of different lenses 5, 5 ', 5 ", be provided so that by appropriate Change the light properties can be changed. For example, the different lenses may cause different emission aperture angles; as exemplified in Fig. 6 shown, the first lens 5 can cause an opening angle of 8 ° to 10 °, a second lens 5 'an opening angle about 20 ° and a third lens 5 "an opening angle about 40 °.

Die oben dargestellte LED-Leuchte 1 kann als LED-Strahler ausgebildet sein. Hierzu kann die LED-Leuchte 1, wie in den Figuren 1 bis 5 und 7 angedeutet, einen Tragarm 20 aufweisen, der einerseits mit dem Kühlkörper 2 verbunden ist und andererseits mit einem in Fig. 7 exemplarisch gezeigten Lampenbetriebsgerät 25, das ein weiteres Bauteil der LED-Leuchte darstellen kann und über Stromleitungen mit dem LED-Modul 2 verbunden sein kann. An der Übergangsstelle zwischen dem Tragarm 20 und dem Kühlkörper 3 kann eine erste gelenkige Verbindung 21 vorgesehen sein, an der Übergangsstelle zwischen dem Tragarm 20 und dem Lampenbetriebsgerät 25 eine zweite gelenkige Verbindung 22. Die erste gelenkige Verbindung 21 kann beispielsweise für ein Verschwenken des Kühlkörpers 3 um eine horizontale Achse vorgesehen sein, die zweite gelenkige Verbindung 22 beispielsweise für ein Verschwenken des Kühlkörpers 3 um eine vertikale Achse.The LED lamp 1 shown above may be formed as an LED spotlight. For this purpose, the LED light 1, as in the FIGS. 1 to 5 and 7 indicated, having a support arm 20 which is connected on the one hand with the heat sink 2 and on the other hand with a in Fig. 7 exemplarily shown lamp operating device 25, which may represent another component of the LED lamp and may be connected via power lines to the LED module 2. At the transition point between the support arm 20 and the heat sink 3, a first articulated connection 21 may be provided at the transition point between the support arm 20 and the lamp operating device 25, a second articulated connection 22. The first articulated connection 21 may, for example, for pivoting of the heat sink. 3 be provided about a horizontal axis, the second articulated connection 22, for example, for a pivoting of the heat sink 3 about a vertical axis.

Bei dem Ausführungsbeispiel, das in den Figuren 1 bis 5 und 7 skizziert ist, ist die erste gelenkige Verbindung 21 an demjenigen Rand des Kühlkörpers 3 angeordnet, der in Abstrahlrichtung weist. Der Tragarm 20 ist dabei derart gebogen, dass die vertikale Achse der zweiten gelenkigen Verbindung 22 durch den Kühlkörper 3 verläuft. Hierdurch wird ein Verschwenken des Kühlkörpers 3 ermöglicht, das besonders wenig Bewegungsraum erfordert.In the embodiment shown in the FIGS. 1 to 5 and 7 is sketched, the first articulated connection 21 is arranged at that edge of the heat sink 3, which points in the emission direction. The support arm 20 is bent in such a way that the vertical axis of the second articulated connection 22 extends through the heat sink 3. As a result, a pivoting of the heat sink 3 is made possible, which requires very little space for movement.

Der Tragarm 20 kann alternativ oder zusätzlich auch einerseits mit dem Lampenbetriebsgerät 25 und andererseits mit dem LED-Modul 2 verbunden sein.The support arm 20 may alternatively or additionally also be connected on the one hand to the lamp operating device 25 and on the other hand to the LED module 2.

Wie in Fig. 8 skizziert, können mehrere LED-Leuchten 1, 1' vorgesehen sein, die über eine vorzugsweise stromführende Schiene 26 verbunden sind, wobei beispielsweise jede der LED-Leuchten 1, 1' mit einem eigenen Lampenbetriebsgerät 25,25' verbunden sein kann.As in Fig. 8 sketched, a plurality of LED lights 1, 1 'may be provided, which are connected via a preferably current-carrying rail 26, wherein, for example, each of the LED lights 1, 1' may be connected to its own lamp operating device 25,25 '.

In den Figuren 9 bis 11 ist ein zweites Ausführungsbeispiel skizzenhaft dargestellt. Die Bezugszeichen sind entsprechend den obigen Darstellungen verwendet. Im Folgenden wird lediglich auf Unterschiede zum ersten Ausführungsbeispiel eingegangen. Sofern nicht anders dargestellt, gelten die obigen Beschreibungen auch für das zweite Ausführungsbeispiel.In the FIGS. 9 to 11 a second embodiment is shown in outline. The reference numerals are used in accordance with the above representations. In the following, only differences to the first embodiment will be discussed. Unless otherwise stated, the above descriptions also apply to the second embodiment.

Der Kühlkörper 3 weist Kühlrippen auf, die im Wesentlichen radialsymmetrisch geformt sind und sich insoweit von denjenigen des Kühlkörpers des ersten Ausführungsbeispiels unterscheiden. Beim ersten Ausführungsbeispiel sind die Kühlrippen im Wesentlichen parallel verlaufend angeordnet.The cooling body 3 has cooling ribs which are shaped substantially radially symmetrically and differ from those of the cooling body of the first exemplary embodiment in this respect. In the first embodiment, the cooling fins are arranged substantially parallel.

Der Tragarm 20 greift an demjenigen Rand des Kühlkörpers 3 an, der gegen die Abstrahlrichtung weist.The support arm 20 acts on that edge of the heat sink 3, which faces the emission direction.

In den Figuren 9 bis 11 ist exemplarisch ein Lampenbetriebsgerät 25 skizziert; dieses kann an einer Schiene 26 montiert sein, in der Stromleitungen zur Stromversorgung des Lampenbetriebsgeräts 25 verlaufen können.In the FIGS. 9 to 11 is exemplified a lamp operating device 25 outlined; this can be mounted on a rail 26 in which power lines for powering the lamp operating device 25 can run.

In Fig. 10 sind an der Kühlkörper-Fläche 7 Ausnehmungen 16, 17 skizziert, in welche die stiftartigen Elemente 10, 11 des LED-Moduls 3 eingreifen können. Es können also zur Stromversorgung der wenigstens einen LED des LED-Moduls 2 Stromkabel vorgesehen sein, die von dem Lampenbetriebsgerät 25 beispielsweise innerhalb des Tragarms 20 verlaufend zu den Ausnehmungen 16, 17 an der Kühlkörper-Fläche 7 verlaufen. Im LED-Modul 2 können dann weitere Stromkabel von den stiftartigen Elementen 10, 11 zu der wenigstens einen LED verlaufen.In Fig. 10 7 recesses 16, 17 are sketched on the heat sink surface, in which the pin-like elements 10, 11 of the LED module 3 can intervene. It can therefore be provided for powering the at least one LED of the LED module 2 power cables extending from the lamp operating device 25, for example, within the support arm 20 extending to the recesses 16, 17 on the heat sink surface 7. In the LED module 2, further power cables can then run from the pin-like elements 10, 11 to the at least one LED.

Das Lampenbetriebsgerät 25 kann dafür vorgesehen sein, die LED des LED-Moduls 2 zu schalten und/oder zu dimmen.The lamp operating device 25 may be provided for switching and / or dimming the LED of the LED module 2.

Die Linse 5 kann beim zweiten Ausführungsbeispiel unabhängig von einem Entblendungstubus bzw. einem sonstigen optischen Element verrastend am LED-Modul 2 angeordnet werden.The lens 5 can be arranged latching in the second embodiment, regardless of a Entblendungstubus or other optical element on the LED module 2.

In Fig. 12 ist exemplarisch der Fall dargestellt, in dem drei LED-Leuchten über eine Schiene 26 verbunden sind. In den Figuren 13a, 13b und 13c sind drei Ansichten der LED-Leuchte einschließlich des Lampenbetriebsgeräts 25 gezeigt, wobei die Leuchte von der Schiene 26 abgenommen ist. Hier ist angedeutet, dass die erste gelenkige Verbindung 21 für einen Schwenkbereich von 90° vorgesehen sein kann und die zweite gelenkige Verbindung 22 für einen Schwenkbereich von 360°.In Fig. 12 exemplified is the case in which three LED lights are connected via a rail 26. In the Figures 13a, 13b and 13c three views of the LED lamp including the lamp operating device 25 are shown, wherein the lamp is removed from the rail 26. Here it is indicated that the first articulated connection 21 can be provided for a pivoting range of 90 ° and the second articulated connection 22 for a pivoting range of 360 °.

Selbstverständlich können Elemente der beiden Ausführungsbeispiele kombiniert werden, um eine weitere LED-Leuchte zu erhalten; beispielsweise kann für das zweite Ausführungsbeispiel ein Entblendungstubus, wie beim ersten Ausführungsbeispiel dargestellt, vorgesehen sein usw.Of course, elements of the two embodiments can be combined to obtain a further LED light; For example, can be provided for the second embodiment, a Entblendungstubus, as shown in the first embodiment, etc.

Wie in den Figuren 14a bis 16b dargestellt, kann die erfindungsgemäße LED-Leuchte als LED-Downlight ausgebildet sein.As in the FIGS. 14a to 16b illustrated, the LED lamp according to the invention can be designed as LED downlight.

Hier kann, wie in den Figuren 14a und 14b skizziert, das LED-Modul 2 und der damit verbundene Kühlkörper 3 an der Rückseite eines Einbaurings 30 angeordnet sein. In Fig. 14b ist angedeutet, wie der Einbauring 30 in einer Öffnung eines Deckenelements 31 angeordnet sein kann.Here, as in the Figures 14a and 14b outlined, the LED module 2 and the associated heat sink 3 can be arranged on the back of a mounting ring 30. In Fig. 14b It is indicated how the mounting ring 30 can be arranged in an opening of a ceiling element 31.

Zur Änderung der Abstrahlrichtung kann eine gelenkige Verbindung 32 zwischen dem Einbauring 30 und dem Kühlkörper 3 vorgesehen sein. In den Figuren 15a und 15b ist das Downlight bei - gegenüber dem in den Figuren 14a und 14b gezeigten Fall ― verändert eingestellter Abstrahlrichtung gezeigt, also bei veränderter Einstellung der gelenkigen Verbindung 32. In den Figuren 16a und 16b sind entsprechende Querschnitte skizziert.To change the emission direction, an articulated connection 32 between the mounting ring 30 and the heat sink 3 may be provided. In the FIGS. 15a and 15b is the downlight at - compared to in the Figures 14a and 14b shown case - changed set emission direction shown, so with changed setting of the articulated connection 32nd In the FIGS. 16a and 16b corresponding cross sections are sketched.

Claims (12)

LED-Leuchte, aufweisend - ein LED-Modul (2) mit wenigstens einer LED als Leuchtmittel und - einen Kühlkörper (3),
wobei das LED-Modul (2) zur Abfuhr von Wärme, die durch die LED erzeugt werden kann, thermisch mit dem Kühlkörper (3) verbunden ist und die Leuchte Mittel (10, 11, 16, 17) zum werkzeuglosen Lösen und Wiederherstellen der Verbindung zwischen dem LED-Modul (2) und dem Kühlkörper (3) aufweist,
dadurch gekennzeichnet,
dass die Leuchte weiterhin ein optisches Element (4), beispielsweise einen Entblendungstubus oder einen Reflektor aufweist, wobei das optische Element (4) derart an dem LED-Modul (2) gehalten ist, dass es ohne Werkzeug von dem LED-Modul (2) reversibel gelöst werden kann. LED light, comprising - An LED module (2) with at least one LED as the light source and a heat sink (3),
wherein the LED module (2) for dissipating heat which can be generated by the LED, is thermally connected to the heat sink (3) and the lamp means (10, 11, 16, 17) for tool-free release and re-connection between the LED module (2) and the heat sink (3),
characterized,
that the luminaire further an optical element (4), for example a Entblendungstubus or a reflector, wherein the optical element (4) in such a way to the LED module (2) is held, that it without tools from the LED module (2) can be reversibly solved. LED-Leuchte nach Anspruch 1,
bei der die Mittel (10, 11, 16, 17) dazu ausgebildet sind, die Verbindung durch eine relative Drehbewegung und eine relative Translationsbewegung zwischen dem LED-Modul (2) und dem Kühlkörper (3) zu lösen und/oder wiederherzustellen.LED luminaire according to claim 1,
wherein the means (10, 11, 16, 17) are adapted to release and / or restore the connection by relative rotational movement and relative translational movement between the LED module (2) and the heat sink (3). LED-Leuchte nach Anspruch 1 oder 2,
bei der die Mittel (10, 11, 16, 17) einen Bajonettverschluss umfassen.LED lamp according to claim 1 or 2,
in which the means (10, 11, 16, 17) comprise a bayonet closure. LED-Leuchte nach einem der vorhergehenden Ansprüche,
bei der die Mittel (10, 11, 16, 17) eine so genannte GU10-Fassung umfassen, die vorzugsweise an dem Kühlkörper (3) vorgesehen ist.LED luminaire according to one of the preceding claims,
in which the means (10, 11, 16, 17) comprise a so-called GU10 socket, which is preferably provided on the heat sink (3). LED-Leuchte nach einem der vorhergehenden Ansprüche,
bei der das LED-Modul (2) eine Modul-Fläche (6) aufweist und der Kühlkörper (3) eine Kühlkörper-Fläche (7) aufweist, derart dass im verbundenen Zustand die Modul-Fläche (6) die Kühlkörper-Fläche (7) flächig kontaktiert.LED luminaire according to one of the preceding claims,
wherein the LED module (2) has a module surface (6) and the heat sink (3) has a heat sink surface (7), such that in the connected state Module surface (6) the heat sink surface (7) contacted surface. LED-Leuchte nach einem der vorhergehenden Ansprüche,
bei der das LED-Modul (2) eine Außenfläche (14) aufweist, die im verbundenen Zustand eine Außenfläche der LED-Leuchte (1) bildet.LED luminaire according to one of the preceding claims,
wherein the LED module (2) has an outer surface (14) which forms an outer surface of the LED lamp (1) in the connected state. LED-Leuchte nach einem der vorhergehenden Ansprüche,
bei der das optische Element (4) mittels einer Rastverbindung an dem LED-Modul (2) gehalten ist.LED luminaire according to one of the preceding claims,
in which the optical element (4) by means of a latching connection to the LED module (2) is held. LED-Leuchte nach einem der vorhergehenden Ansprüche,
bei der das optische Element (4) schwenkbar an dem LED-Modul (2) gehalten ist.LED luminaire according to one of the preceding claims,
wherein the optical element (4) is pivotally supported on the LED module (2). LED-Leuchte nach Anspruch 8,
bei der das optische Element gegenüber dem LED-Modul um 360° gedreht werden kann.LED light according to claim 8,
in which the optical element can be rotated 360 ° relative to the LED module. LED-Leuchte nach einem der vorhergehenden Ansprüche,
weiterhin aufweisend ein Lampenbetriebsgerät (25), wobei das Lampenbetriebsgerät (25) vorzugsweise über einen Tragarm (20) mit dem Kühlkörper (3) und/oder mit dem LED-Modul (2) verbunden ist.LED luminaire according to one of the preceding claims,
further comprising a lamp operating device (25), wherein the lamp operating device (25) is preferably connected via a support arm (20) to the heat sink (3) and / or to the LED module (2). LED-Leuchte nach einem der vorhergehenden Ansprüche,
wobei die LED-Leuchte ein LED-Strahler ist.LED luminaire according to one of the preceding claims,
where the LED light is an LED spotlight. LED-Leuchte nach einem der vorhergehenden Ansprüche,
wobei die LED-Leuchte ein LED-Downlight ist.LED luminaire according to one of the preceding claims,
where the LED light is a LED downlight.
EP11190087.4A 2008-11-05 2009-11-04 LED luminaire Active EP2436975B1 (en)

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DE102008055864A DE102008055864A1 (en) 2008-11-05 2008-11-05 LED light
EP09753030.7A EP2350528B1 (en) 2008-11-05 2009-11-04 Led luminaire

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EP09753030.7A Division EP2350528B1 (en) 2008-11-05 2009-11-04 Led luminaire
EP09753030.7 Division 2009-11-04

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EP2350528B1 (en) 2013-10-02
CN102216683A (en) 2011-10-12
DE102008055864A1 (en) 2010-05-06
EP2350528A2 (en) 2011-08-03
WO2010051985A2 (en) 2010-05-14
EP2436975B1 (en) 2014-04-16
EP2436974B1 (en) 2013-10-16
WO2010051985A3 (en) 2010-07-01
WO2010051985A8 (en) 2011-05-05
EP2436974A1 (en) 2012-04-04

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