EP2539629B1 - Lampe intégrée comportant un corps de base et un réflecteur en forme de dôme - Google Patents

Lampe intégrée comportant un corps de base et un réflecteur en forme de dôme Download PDF

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Publication number
EP2539629B1
EP2539629B1 EP11704985.8A EP11704985A EP2539629B1 EP 2539629 B1 EP2539629 B1 EP 2539629B1 EP 11704985 A EP11704985 A EP 11704985A EP 2539629 B1 EP2539629 B1 EP 2539629B1
Authority
EP
European Patent Office
Prior art keywords
reflector
recessed luminaire
retaining ring
light source
heat sink
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.)
Active
Application number
EP11704985.8A
Other languages
German (de)
English (en)
Other versions
EP2539629A2 (fr
Inventor
Bernd Oehle
Stephan Pieper
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 Germany
Original Assignee
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
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Application filed by Zumtobel Lighting GmbH Germany filed Critical Zumtobel Lighting GmbH Germany
Publication of EP2539629A2 publication Critical patent/EP2539629A2/fr
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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
    • F21V5/00—Refractors for light sources
    • 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
    • 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
    • F21V17/12—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 screwing
    • 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
    • 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
    • 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
    • F21V29/502—Cooling arrangements characterised by the adaptation for cooling of specific components
    • F21V29/507—Cooling arrangements characterised by the adaptation for cooling of specific components of means for protecting lighting devices from damage, e.g. housings
    • 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
    • F21V7/00—Reflectors for light sources
    • F21V7/0025—Combination of two or more reflectors for a single light source
    • 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
    • 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

  • Recessed luminaires of the type described above are commonly used in suspended ceiling systems. They are here sunk in a circular opening of the suspended ceiling sunk. The assembly takes place for example by means of a mounting ring, which is first fixed to the ceiling. Subsequently, a unit consisting of light source carrier and reflector can be attached to the mounting ring. The light emitted by the light source is then emitted substantially vertically downwards via the reflector.
  • a downlight which allows the attachment of such additional optical components.
  • a retaining ring is provided which is fixed to the outer periphery of a front flange of the reflector. This ring allows the insertion of an optical element, such as a transparent disc.
  • the present invention has for its object to provide an alternative to the previously described known embodiment, a solution for mounting an additional component in a downlight.
  • the light source is arranged in a recess of the heat sink, wherein in the recess further a pot-like head reflector is arranged and the additional optical element between the reflector and head reflector is clamped and the head reflector is fixed by means of the retaining ring.
  • the additional optical element is not attached to the light exit opening of the reflector, but instead stored between the retaining ring or base body and reflector, more precisely between the head reflector and the reflector. There it is fixed when joining the two elements, or jammed, so that a reliable support is guaranteed.
  • the solution according to the invention would also open up the possibility, in addition to the light exit opening of the reflector to arrange further additional components. For this purpose, in turn, the solution known from the prior art could be used.
  • the connecting device between retaining ring and reflector is preferably formed by a screw connection or a bayonet connection. This allows easy joining of both elements. A release of the connection, for example, to replace the additional optical element, is readily possible.
  • the installation of the recessed luminaire in a ceiling is preferably again via a mounting ring, which is provided for attachment in the ceiling opening.
  • the assembly is then fixed consisting of base body and reflector, which in turn preferably a screw or Bayonet connection is provided.
  • the mounting ring may have latching means for latching or jamming with the ceiling, which are preferably provided in a support area with a friction increasing element or with a corresponding coating. A rotation of the downlight relative to the ceiling is thereby prevented.
  • FIGS. 1 and 2 show first views of the generally provided with the reference numeral 1 recessed luminaire according to the invention in the fully assembled state. It is a so-called downlight, which is to be mounted in the circular opening of a suspended ceiling.
  • a special feature in the present case is that the support elements 57 are provided with a friction-increasing element 58 or a coating. It may be, for example, a rubber ring or a corresponding plugged element made of rubber or plastic, by which the friction with the surface of the ceiling is significantly increased. As a result, an unintentional rotation of the mounting ring 50 and ultimately the entire lamp is prevented from the ceiling.
  • the actual lighting unit is mounted as already mentioned.
  • this consists on the one hand of a base body and on the other hand of a dome-shaped reflector.
  • a modular design of the luminaire according to the invention is thereby created, which makes it possible to use reflectors of different types and also to use optical elements for influencing the light output in a simple manner.
  • the base body is in this case formed by a cylinder-like heat sink 10, which serves in particular to support and cool the light source.
  • the light source is formed in particular by an LED module 15, which has a plurality of LEDs arranged on a circuit board.
  • This board 15 is disposed in a recess of the heat sink 10 and preferably attached directly to the heat sink to allow a good heat transfer.
  • the heat sink 10, which has a plurality of cooling fins 11 which extend from a massive central region 12 to the side, is for this purpose formed on one side with a slightly tapered recess, at the bottom of the support surface is formed for the LED board.
  • a dome-shaped plastic element 17 and a dome-shaped head reflector 18 are then also arranged.
  • the head reflector 18, which in further views in the FIGS. 7a and 7b is shown here serves to effectively direct the light emitted by the LEDs in a large spatial area light to the bottom.
  • this head reflector 18 consists of a relatively flexible plastic material, which has been deep-drawn into the appropriate shape.
  • FIGS. 8a and 8b show further views of this retaining ring 20, which is preferably formed of plastic material and fixed in the screwed on the heat sink 10 state, the plastic part 17 with the head reflector 18 clamped.
  • Another essential function of the retaining ring 20 is to provide a releasable connection for the actual dome-shaped reflector 25 of the lamp 1.
  • a bayonet connection between the retaining ring 20 and reflector 25 is provided.
  • the reflector in the FIGS. 9a and 9b is shown in detail, this has on the outside of the reflector wall three hooks 26, which form a bayonet connection with corresponding guide projections 22 on the retaining ring 20. This allows a simple and quick attachment of the reflector 25 to the heat sink 10, alternatively, a screw connection would be conceivable.
  • connection - in the present case, the bayonet connection - between the retaining ring 20 and the reflector 25 is formed such that when attaching the reflector 25 optical elements can be inserted and fixed to influence the light output.
  • a homogenization of the light output is to be achieved or it is desired that the individual LEDs of the LED board are no longer individually perceptible.
  • an optical unit consisting of a plastic disk 30 and a light-scattering film 31 arranged in front of it is mounted. Both elements can - as shown below - now be inserted before fixing the reflector 25 to the retaining ring 20 in the ring 20. If subsequently the reflector 25 is fixed by means of the bayonet connection, this simultaneously leads to a fixation of the optical elements 30, 31.
  • the plastic part 17 and the head reflector 18 are placed on the heat sink 10 with the attached LED module. Both elements are then fixed by means of the retaining ring 20, which is screwed by the screws 21 onto the heat sink 10, so that the in FIG. 5 shown arrangement results.
  • the optical elements that is, the scattering film 31 and the plastic disk 30 are then inserted into the retaining ring 20.
  • the reflector 25 is placed on the retaining ring 20 and rotated in order to achieve a catch on the bayonet connection.
  • FIG. 6 illustrated assembly consisting of heat sink 10 and reflector 25 is then attached to the mounting ring 50 as described initially. Again, a connection is again using a bayonet lock, for which the reflector 25 has on its outer side further protruding pin 27, which cooperate with the corresponding guideways 52 on the mounting ring.
  • the reflector 25 thus represents the link between mounting ring 50 and heat sink 10.
  • the inventive concept described above namely to clamp the optical elements for influencing the light output between the head reflector and the dome reflector, is not limited to the illustrated disk-like optical elements. It would also be conceivable, for example, to arrange luminaire screens or comparable elements in a corresponding manner. Furthermore, in the case of disk-like elements, light-influencing elements with prismatic structures or the like could also be used.
  • FIGS. 10 to 12 illustrated further embodiments of recessed luminaires according to the invention, in which different reflectors were used in each case.
  • the figures show that the appearance of the luminaire and also its light output can be influenced by the replacement of the reflectors. So is the variant of FIGS. 10a to 10c the reflector 25 designed higher, resulting in a more concentrated light output to the bottom out.
  • the variants of Figures 11 and 12 correspond to the first and second embodiments, but here has the reflector 25 on the bottom no peripheral frame. In this so-called frameless variant of the mounting ring is designed slightly different, since it is now either plastered after installation or is attached to the ceiling from the top.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Securing Globes, Refractors, Reflectors Or The Like (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Claims (8)

  1. Luminaire encastré (1) avec
    une source de lumière (15),
    un corps de base pour le maintien de la source de lumière (15), qui est conçu comme un corps de refroidissement (10),
    une bague de maintien (20), qui est vissée sur le corps de refroidissement (10), ainsi qu'un réflecteur en forme de dôme (25) qui est fixé de manière amovible à la bague de maintien (20) par l'intermédiaire d'un dispositif de liaison,
    le dispositif de liaison étant conçu de façon à ce que, lorsque la bague de maintien (20) et le réflecteur (25) sont reliés, un élément optique supplémentaire (30, 31) permettant d'influencer l'émission de lumière soit logé et fixé,
    la source de lumière (15) étant disposée dans un creux du corps de refroidissement (10) et, dans le creux, se trouve également un réflecteur de tête (18) en forme de cloche, et
    l'élément optique supplémentaire (30, 31) étant coincé entre le réflecteur (25) et le réflecteur de tête (18) et le réflecteur de tête (18) étant fixé à l'aide de la bague de maintien (20).
  2. Luminaire encastré selon la revendication 1, caractérisé en ce que le dispositif de liaison est constitué d'une liaison vissée ou d'une liaison à baïonnette.
  3. Luminaire encastré selon l'une des revendications précédentes, caractérisée en ce que celui-ci comprend en outre une bague de montage (50) pour une fixation dans une ouverture dans le plafond.
  4. Luminaire encastré selon la revendication 3, caractérisé en ce que la bague de montage (50) comprend des moyens d'encliquetage (57) pour l'encliquetage ou le serrage avec le plafond, les moyens d'encliquetage (57) étant munis, dans une zone d'appui, d'un élément (58) ou d'un revêtement augmentant la friction.
  5. Luminaire encastré selon la revendication 3 ou 4, caractérisé en ce que le réflecteur (25) est relié de manière amovible avec la bague de montage (50), de préférence par l'intermédiaire d'une liaison vissée ou d'une liaison à baïonnette.
  6. Luminaire encastré selon l'une des revendications précédentes, caractérisé en ce que la source de lumière (15) comprend une ou plusieurs LED.
  7. Luminaire encastré selon l'une des revendications précédentes, caractérisé en ce que l'élément optique supplémentaire est constitué d'un disque de diffusion ou d'un film de diffusion (31).
  8. Luminaire encastré selon l'une des revendications 1 à 6, caractérisé en ce que l'élément optique supplémentaire est constitué d'une trame.
EP11704985.8A 2010-02-23 2011-02-23 Lampe intégrée comportant un corps de base et un réflecteur en forme de dôme Active EP2539629B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202010002676U DE202010002676U1 (de) 2010-02-23 2010-02-23 Einbauleuchte mit Basiskörper und domförmigem Reflektor
PCT/EP2011/052651 WO2011104258A2 (fr) 2010-02-23 2011-02-23 Lampe intégrée comportant un corps de base et un réflecteur en forme de dôme

Publications (2)

Publication Number Publication Date
EP2539629A2 EP2539629A2 (fr) 2013-01-02
EP2539629B1 true EP2539629B1 (fr) 2016-08-24

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ID=44227894

Family Applications (1)

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EP11704985.8A Active EP2539629B1 (fr) 2010-02-23 2011-02-23 Lampe intégrée comportant un corps de base et un réflecteur en forme de dôme

Country Status (5)

Country Link
US (1) US8801217B2 (fr)
EP (1) EP2539629B1 (fr)
CN (1) CN102822591B (fr)
DE (1) DE202010002676U1 (fr)
WO (1) WO2011104258A2 (fr)

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CA3125954A1 (fr) 2020-07-23 2022-01-23 DMF, Inc. Module d'eclairage ayant des pieces optiques remplacables sur place, un refroidissement ameliore et des caracteristiques d'installation sans outils
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JP2008147044A (ja) 2006-12-11 2008-06-26 Ushio Spex Inc ユニット型ダウンライトのアダプタ
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US8801217B2 (en) 2014-08-12
WO2011104258A3 (fr) 2011-11-24
CN102822591B (zh) 2015-08-05
US20130051012A1 (en) 2013-02-28
DE202010002676U1 (de) 2011-07-26
WO2011104258A2 (fr) 2011-09-01
CN102822591A (zh) 2012-12-12
EP2539629A2 (fr) 2013-01-02

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