EP2539629A2 - 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

Info

Publication number
EP2539629A2
EP2539629A2 EP11704985A EP11704985A EP2539629A2 EP 2539629 A2 EP2539629 A2 EP 2539629A2 EP 11704985 A EP11704985 A EP 11704985A EP 11704985 A EP11704985 A EP 11704985A EP 2539629 A2 EP2539629 A2 EP 2539629A2
Authority
EP
European Patent Office
Prior art keywords
reflector
base body
recessed luminaire
luminaire according
light source
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
EP11704985A
Other languages
German (de)
English (en)
Other versions
EP2539629B1 (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 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=44227894&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP2539629(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Zumtobel Lighting GmbH Austria, Zumtobel Lighting GmbH Germany filed Critical Zumtobel Lighting GmbH Austria
Publication of EP2539629A2 publication Critical patent/EP2539629A2/fr
Application granted granted Critical
Publication of EP2539629B1 publication Critical patent/EP2539629B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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

  • the present invention relates to a recessed luminaire according to the preamble of claim 1, which has a base body for supporting a light source and a dome-shaped reflector which is detachably fastened to the base body via a connecting device.
  • the present invention relates to a so-called downlight.
  • 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.
  • This optical element may be a transparent body having light-diffusing or refractive properties. The installation of a lighting grid would be conceivable.
  • 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 object is achieved by a recessed luminaire with the features of claim 1.
  • the recessed luminaire according to the invention initially has a base body for supporting a light source and a dome-shaped reflector which is releasably attachable to the base body via a connecting device.
  • the connecting device is now designed in such a way that when the base body and the reflector are joined together, an optical element for influencing the light output is picked up and fixed between the two elements.
  • the optical element in contrast to the prior art, is not attached to the light exit opening of the reflector but instead stored between the base body and the reflector. There it is fixed when joining the two elements, for example, jammed, so that a reliable support is guaranteed.
  • the solution according to the invention would also open up the possibility, in addition to the
  • the connecting device between the base body and the 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 optical element, is readily possible.
  • the light source used in the present case is preferably an LED-based light source. It may, for example, be a circuit board on which a plurality of LEDs are arranged like a matrix. In such a case must
  • the base body itself forms a heat sink on which the light source is arranged.
  • the light source can be arranged in particular in a recess of the heat sink, wherein in the depression then an additional reflector, in particular a cup-shaped head reflector can be arranged.
  • 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.
  • a mounting ring which is provided for attachment in the ceiling opening.
  • the assembly consisting of base body and
  • the mounting ring can have latching means for latching or clamping with the ceiling, which are preferably provided in a Auflageb 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 are views of a first embodiment of an inventive
  • Fig. 3a is a sectional view of the lamp of Figures 1 and 2;
  • 3b and 3c are sectional views of the base body
  • Figs. 7a and 7b are views of one used in the lamp of Figures 1 and 2
  • FIG. 8a and 8b are views of a fixing ring for fixing the dome-shaped
  • 9a and 9b are views of a dome-shaped reflector
  • 10a to 10c are views of a second embodiment of a
  • Fig. Ia and 1 lb are views of a third embodiment of a
  • Figures 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.
  • the assembly takes place here using a mounting ring 50, which is first fixed to the mounting hole of the - not shown - ceiling. Subsequently, the actual lighting unit is attached to the mounting ring. This type of installation of downlights is already known and should therefore not be discussed further below. It should be pointed out briefly that the
  • Fixing the mounting ring 50 is carried on the ceiling by means of locking means, which in particular over the circumference of the ring 50 distributed locking arms 55 comprise, which are arranged adjustable in height on webs 56. To insert the mounting ring 50 in the ceiling opening, the arms 55 are positioned so that they
  • 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 head reflector 18, which is shown in further views in FIGS. 7a and 7b, serves here to effectively direct the light emitted by the LEDs in a large spatial area to the underside.
  • this head reflector 18 consists of a relatively flexible plastic material, which has been deep-drawn into the appropriate shape.
  • Both elements ie plastic part 17 and head reflector 18 are fixed by means of a retaining ring 20 on the heat sink 10.
  • the retaining ring 20 itself is screwed by means of screws 21 to the heat sink 10.
  • Figures 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, the plastic part 17 with the head reflector 18 by clamping.
  • 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 which is shown in more detail in Figures 9a and 9b, this has on the outside of the reflector wall three hooks 26, which with
  • 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 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. Is then the reflector 25 by means of
  • 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 arrangement shown in Figure 5 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 to over the
  • the reflector 25 thus represents the link between mounting ring 50 and heat sink 10.
  • FIGS. 1 and 2 in perspective views as well as in the sectional views in FIGS. 3a to 3c are shown.
  • the optical elements consisting of plastic disk 30 and scattering film 31 between the reflector 25 and fixed by means of the retaining ring 20 Head reflector 18 are clamped.
  • a so-called light chamber 60 is thereby formed, in which a mixing or deflection of the light beams takes place in such a way that a light output that is as bright as possible is achieved.
  • a plurality of differently colored LEDs for producing light in a specific mixed color or a desired color temperature.
  • the inventive concept described above namely to clamp the optical elements for influencing the light output between the head reflector and the domrefector, is not limited to the disk-like optical elements shown. It would also be conceivable, for example, to arrange luminaire screens or comparable elements in a corresponding manner. Furthermore, in the case
  • disk-like elements and loisbeeinfiussende elements are used with prismatic structures or the like.
  • the modular design of the luminaire according to the invention opens up the possibility of easily changing the reflector.
  • FIGS. 10 to 12 By way of example, further exemplary embodiments are shown in FIGS. 10 to 12
  • Reflectors the appearance of the lamp and also their light output can be afffiusst.
  • the reflector 25 is designed to be higher, resulting in a more concentrated light output towards the underside.
  • the variants of FIGS. 11 and 12 correspond to the first and second embodiments, but here the reflector 25 has no peripheral frame on the underside. In this so-called frameless variant is also the

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)

Abstract

L'invention concerne une lampe intégrée (1) comportant un corps de base (10) pour fixer une source de lumière (15), et un réflecteur (25) en forme de dôme pouvant être fixé amovible au corps de base (10) au moyen d'un dispositif de liaison. Selon l'invention, le dispositif de liaison est conçu de telle manière que lors de l'assemblage du corps de base (10) et du réflecteur (25), un élément optique (30, 31) destiné à influencer l'émission de lumière est logé et fixé.
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 true EP2539629A2 (fr) 2013-01-02
EP2539629B1 EP2539629B1 (fr) 2016-08-24

Family

ID=44227894

Family Applications (1)

Application Number Title Priority Date Filing Date
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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US8801217B2 (en) 2014-08-12
WO2011104258A2 (fr) 2011-09-01
CN102822591B (zh) 2015-08-05
DE202010002676U1 (de) 2011-07-26
EP2539629B1 (fr) 2016-08-24
WO2011104258A3 (fr) 2011-11-24
CN102822591A (zh) 2012-12-12
US20130051012A1 (en) 2013-02-28

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