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WO2009068471A1 - Dispositif d'éclairage - Google Patents

Dispositif d'éclairage Download PDF

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Publication number
WO2009068471A1
WO2009068471A1 PCT/EP2008/065929 EP2008065929W WO2009068471A1 WO 2009068471 A1 WO2009068471 A1 WO 2009068471A1 EP 2008065929 W EP2008065929 W EP 2008065929W WO 2009068471 A1 WO2009068471 A1 WO 2009068471A1
Authority
WO
WIPO (PCT)
Prior art keywords
lighting device
elongated body
light source
reflective surface
closure
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.)
Ceased
Application number
PCT/EP2008/065929
Other languages
English (en)
Inventor
Sergio Macchioni
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of WO2009068471A1 publication Critical patent/WO2009068471A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • F21V15/00—Protecting lighting devices from damage
    • F21V15/01—Housings, e.g. material or assembling of housing parts
    • F21V15/013—Housings, e.g. material or assembling of housing parts the housing being an extrusion
    • 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
    • F21V29/505—Cooling arrangements characterised by the adaptation for cooling of specific components of reflectors
    • 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
    • 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
    • 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
    • F21V15/00—Protecting lighting devices from damage
    • F21V15/01—Housings, e.g. material or assembling of housing parts
    • F21V15/015—Devices for covering joints between adjacent lighting devices; End coverings
    • 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
    • F21V7/00—Reflectors for light sources
    • F21V7/005—Reflectors for light sources with an elongated shape to cooperate with linear light sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
    • F21Y2103/10—Elongate light sources, e.g. fluorescent tubes comprising a linear array of point-like light-generating elements
    • 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 lighting device.
  • Such LEDs are accommodated within a supporting body, which forms a parabolic surface for reflecting and directing the light emitted by the light source.
  • a parabolic surface for reflecting and directing the light emitted by the light source.
  • Such reflecting surfaces have, as mentioned, a substantially cylindrical parabolic shape and in some case are associated with linear lenses.
  • the aim of the present invention is to provide a new lighting device.
  • an object of the present invention is to provide a lighting device that offers highly practical assembly.
  • a lighting device characterized in that it comprises an elongated body, which supports at least one light source of the LED type and forms at least one reflective surface for the light emitted by said at least one light source of the LED type, said reflective surface having a concavity that is directed toward said at least one light source, heat dissipation means being further provided which are arranged on said elongated body on the opposite side with respect to said reflective surface.
  • Figure 1 is an exploded perspective view of a spotlight that uses a lighting device according to the invention
  • Figure 2 is a perspective view of the elongated body shown in Figure 1 ;
  • Figure 3 is a side elevation view of the elongated body;
  • Figure 4 is another side elevation view of a variation of the elongated body.
  • a lighting device generally designated by the reference numeral 1 , comprises an elongated body 2, which supports at least one light source 3.
  • the elongated body 2 forms at least one reflective surface 4 for the light emitted by the light source 3 : such reflective surface 4 has a concavity that is directed toward the light source 3.
  • Means 5 for dissipating the heat produced by the light source 3 are further provided and are arranged on the elongated body 2 on the opposite side with respect to the reflective surface 4.
  • the light source 3 comprises a plurality of LEDs 3b, which are spaced one another along the direction of longitudinal extension of the elongated body 2 and are supported by a printed circuit 3 a.
  • the elongated body 2 has a constant transverse cross-section, and for this reason it has been found that it is particularly convenient to provide the elongated body by means of the process for extruding a profile.
  • the reflective surface 4 has a plane of symmetry that passes through the light source 3.
  • Such molecules react to the radiation emitted by some LEDs (typically a radiation with a wavelength of approximately 465 run defined in the visible range as blue which, in white, is used to excite the phosphors and remains as invisible background radiation) generating other photons (in addition to the ones emitted by the phosphors excited by the light source) and accordingly determining a greater luminous flux.
  • some LEDs typically a radiation with a wavelength of approximately 465 run defined in the visible range as blue which, in white, is used to excite the phosphors and remains as invisible background radiation
  • other photons in addition to the ones emitted by the phosphors excited by the light source
  • the heat dissipation means 5 comprise a plurality of fins 6, which extend parallel to the direction of longitudinal extension of the elongated body 2.
  • the elongated body 2 further forms a longitudinally elongated receptacle 2a for the light source 3 and more precisely for a supporting element for said light source.
  • the light source 3 is constituted by a flat board 3a (typically a printed circuit), which supports a plurality of mutually spaced LEDs 3b: in this particular case, the receptacle 2a is conveniently constituted by an elongated slot, in which it is possible to insert in a slider- like fashion the flat board 3 a, or is constituted by a flat abutment surface with which it is possible to couple, for example by way of the interposition of a layer of heat-conducting adhesive, the surface of the supporting element for the flat board 3a.
  • a flat board 3a typically a printed circuit
  • the receptacle 2a is conveniently constituted by an elongated slot, in which it is possible to insert in a slider- like fashion the flat board 3 a, or is constituted by a flat abutment surface with which it is possible to couple, for example by way of the interposition of a layer of heat-conducting adhesive, the surface of the supporting element for the flat board 3a.
  • the flat board 3 a can be fixed by means of screws or also by applying a layer of heat-conducting paste of "pad” or of thermoconductive, bi-adhesive webs.
  • a sheet-like element made of metal (for example aluminum), on a first face of which the flat board 3a is deposited or generally coupled.
  • the opposite face of the sheet-like element is instead coupled to the flat abutment surface or to the bottom surface of the receptacle 2a formed on the elongated body 2, so that the heat generated by the light source 3 (and in particular by the LEDs 3b) can migrate through the supporting body to be dissipated by the heat dissipation means 5 provided on the elongated body 2.
  • closure bodies 7 may be fixed to the ends of the elongated body 2 by means of fixing screws 30.
  • the closure bodies 7 also have the task of retaining a closure panel 8 in a downward region.
  • Fluorescent or phosphorescent molecules can be deposited also at the outer surface of the closure panel 8 (or likewise as fillers) within such panel and, as already explained earlier, behave in practice as additional photon sources.
  • the presence of the fluorescent or phosphorescent molecules and the consequent generation of new photons "disturbs" in a positive sense) the emission of the flux by the light source 3, attenuating in practice the dazzle effect determined by the use of light sources of the point-like type. Therefore, the block constituted by the elongated body 2 and by the closure bodies 7 can be associated with a supporting frame 20 provided with a containment slot 21.
  • At least two locking wings 24 rise in particular from the containment slot 21 and cooperate with spring-operated locking means 22, which are jointly connected to the closure bodies 7 by using screws 30.
  • the spring-operated locking means 22 have elastically yielding portions 23, which are designed to be retained by snap action by the upper edges of the respective locking wings 24.
  • the materials used, as well as the contingent shapes and dimensions may be any according to requirements.
  • the elongated body 2 in order to ensure effective dissipation of the heat produced by the light source 3 through the dissipation means 5, it is convenient for the elongated body 2 to be made of metal, for example aluminum.
  • flame spraying or "metalization” is to allow to use a base material (which is inexpensive) on which a layer of noble material is applied which has the required characteristics (for example copper in the region of dissipation and/ or aluminum in the regions affected by reflection). This treatment is particularly efficient, since the heat is distributed through the surface and not through the mass.
  • the elongated body 2 can be manufactured by extrusion of polymeric material (that can be charged with thermoconductive material such as ceramic charges, metallic charges or nanotubes) and, in this particular case, the "Cold Spray” treatment would not be necessary, and by extrusion of white color ceramic material which has a good reflectivity coefficient.
  • polymeric material that can be charged with thermoconductive material such as ceramic charges, metallic charges or nanotubes
  • thermoconductive material such as ceramic charges, metallic charges or nanotubes

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Seal Device For Vehicle (AREA)
  • Vehicle Body Suspensions (AREA)
  • Polarising Elements (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)

Abstract

La présente invention concerne un dispositif d'éclairage (1), comprenant un corps allongé (2), qui supporte au moins une source lumineuse (3) comprenant une pluralité de DEL disposées à distance les unes des autres le long de la direction de l'étendue longitudinale du corps (2), et définissant au moins une surface réfléchissante (4) pour la lumière émise par la source lumineuse (3), la surface réfléchissante (4) présentant une concavité qui est dirigée vers la ou les sources lumineuses (3), des moyens de dissipation de chaleur (5) étant en outre disposés sur le corps allongé (2) sur le côté opposé par rapport à la surface réfléchissante (4).
PCT/EP2008/065929 2007-11-26 2008-11-20 Dispositif d'éclairage Ceased WO2009068471A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT000172A ITVR20070172A1 (it) 2007-11-26 2007-11-26 Dispositivo di illuminazione
ITVR2007A000172 2007-11-26

Publications (1)

Publication Number Publication Date
WO2009068471A1 true WO2009068471A1 (fr) 2009-06-04

Family

ID=40220038

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2008/065929 Ceased WO2009068471A1 (fr) 2007-11-26 2008-11-20 Dispositif d'éclairage

Country Status (2)

Country Link
IT (1) ITVR20070172A1 (fr)
WO (1) WO2009068471A1 (fr)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011067095A1 (fr) * 2009-12-04 2011-06-09 Osram Gesellschaft mit beschränkter Haftung Dispositif d'éclairage et procédé pour monter un dispositif d'éclairage
WO2011088003A3 (fr) * 2010-01-12 2011-10-06 Ge Lighting Solutions, Llc. Composites polymères thermoconducteurs transparents pour la gestion thermique d'une source lumineuse
WO2011132159A1 (fr) * 2010-04-23 2011-10-27 Koninklijke Philips Electronics N.V. Unité d'éclairage à base de diodes
WO2013030333A3 (fr) * 2011-09-02 2013-05-10 Zumtobel Lighting Gmbh Dissipateur thermique pour spot de plafond et spot de plafond
WO2013160834A3 (fr) * 2012-04-23 2014-01-09 Jevgeni Sevtsenko Profilé métallique pour source de lumière à del
KR101643978B1 (ko) * 2015-05-19 2016-07-29 노명재 사각배광 제어용 렌즈광학계
DE102016103369A1 (de) * 2016-02-25 2017-08-31 Trilux Gmbh & Co. Kg Farboptimierte Hohlkammeroptik
US9841175B2 (en) 2012-05-04 2017-12-12 GE Lighting Solutions, LLC Optics system for solid state lighting apparatus
US9951938B2 (en) 2009-10-02 2018-04-24 GE Lighting Solutions, LLC LED lamp
CN108826251A (zh) * 2018-06-06 2018-11-16 深圳市超频三科技股份有限公司 投光灯及其散热壳体
US10340424B2 (en) 2002-08-30 2019-07-02 GE Lighting Solutions, LLC Light emitting diode component

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005088190A1 (fr) * 2004-03-10 2005-09-22 Truck-Lite Co., Inc. Lampe d'interieur
EP1586814A2 (fr) * 2004-04-16 2005-10-19 TRILUX-LENZE GmbH + Co. KG Système d'éclairage
US20050270774A1 (en) * 2004-06-03 2005-12-08 Frank Pan LED illuminating strip unit

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005088190A1 (fr) * 2004-03-10 2005-09-22 Truck-Lite Co., Inc. Lampe d'interieur
EP1586814A2 (fr) * 2004-04-16 2005-10-19 TRILUX-LENZE GmbH + Co. KG Système d'éclairage
US20050270774A1 (en) * 2004-06-03 2005-12-08 Frank Pan LED illuminating strip unit

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10340424B2 (en) 2002-08-30 2019-07-02 GE Lighting Solutions, LLC Light emitting diode component
US9951938B2 (en) 2009-10-02 2018-04-24 GE Lighting Solutions, LLC LED lamp
CN102639934A (zh) * 2009-12-04 2012-08-15 欧司朗股份有限公司 照明装置和用于装配照明装置的方法
US20120268953A1 (en) * 2009-12-04 2012-10-25 Osram Ag Lighting Device and Method for Assembling a Lighting Device
WO2011067095A1 (fr) * 2009-12-04 2011-06-09 Osram Gesellschaft mit beschränkter Haftung Dispositif d'éclairage et procédé pour monter un dispositif d'éclairage
CN102933890B (zh) * 2010-01-12 2015-11-25 Ge照明解决方案有限责任公司 用于光源热量管理的透明导热聚合物复合材料
WO2011088003A3 (fr) * 2010-01-12 2011-10-06 Ge Lighting Solutions, Llc. Composites polymères thermoconducteurs transparents pour la gestion thermique d'une source lumineuse
CN102933890A (zh) * 2010-01-12 2013-02-13 Ge照明解决方案有限责任公司 用于光源热量管理的透明导热聚合物复合材料
US8541933B2 (en) 2010-01-12 2013-09-24 GE Lighting Solutions, LLC Transparent thermally conductive polymer composites for light source thermal management
JP2016076495A (ja) * 2010-01-12 2016-05-12 ジーイー ライティング ソリューションズ エルエルシー 光源温度管理用の透明熱伝導性高分子複合材
AU2011205461B2 (en) * 2010-01-12 2015-07-09 Savant Technologies Llc Transparent thermally conductive polymer composites for light source thermal management
CN102859266A (zh) * 2010-04-23 2013-01-02 皇家飞利浦电子股份有限公司 基于led的照明单元
WO2011132159A1 (fr) * 2010-04-23 2011-10-27 Koninklijke Philips Electronics N.V. Unité d'éclairage à base de diodes
WO2013030333A3 (fr) * 2011-09-02 2013-05-10 Zumtobel Lighting Gmbh Dissipateur thermique pour spot de plafond et spot de plafond
WO2013160834A3 (fr) * 2012-04-23 2014-01-09 Jevgeni Sevtsenko Profilé métallique pour source de lumière à del
US9841175B2 (en) 2012-05-04 2017-12-12 GE Lighting Solutions, LLC Optics system for solid state lighting apparatus
US10139095B2 (en) 2012-05-04 2018-11-27 GE Lighting Solutions, LLC Reflector and lamp comprised thereof
KR101643978B1 (ko) * 2015-05-19 2016-07-29 노명재 사각배광 제어용 렌즈광학계
DE102016103369A1 (de) * 2016-02-25 2017-08-31 Trilux Gmbh & Co. Kg Farboptimierte Hohlkammeroptik
DE102016103369B4 (de) 2016-02-25 2023-09-28 Trilux Gmbh & Co. Kg Farboptimierte Hohlkammeroptik
CN108826251A (zh) * 2018-06-06 2018-11-16 深圳市超频三科技股份有限公司 投光灯及其散热壳体

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