EP2539632A1 - Dissipateur thermique pour une source lumineuse - Google Patents

Dissipateur thermique pour une source lumineuse

Info

Publication number
EP2539632A1
EP2539632A1 EP11704788A EP11704788A EP2539632A1 EP 2539632 A1 EP2539632 A1 EP 2539632A1 EP 11704788 A EP11704788 A EP 11704788A EP 11704788 A EP11704788 A EP 11704788A EP 2539632 A1 EP2539632 A1 EP 2539632A1
Authority
EP
European Patent Office
Prior art keywords
heat sink
light source
outer body
central
central body
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
EP11704788A
Other languages
German (de)
English (en)
Other versions
EP2539632B1 (fr
Inventor
Bernd Oehle
Stefan 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
Application filed by Zumtobel Lighting GmbH Austria, Zumtobel Lighting GmbH Germany filed Critical Zumtobel Lighting GmbH Austria
Publication of EP2539632A1 publication Critical patent/EP2539632A1/fr
Application granted granted Critical
Publication of EP2539632B1 publication Critical patent/EP2539632B1/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
    • 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
    • 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
    • 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
    • F21Y2105/00—Planar light sources
    • F21Y2105/10—Planar light sources comprising a two-dimensional 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]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining

Definitions

  • the present invention relates to a heat sink, for cooling a
  • Light source is provided.
  • the invention relates to a heat sink for an LED light source, wherein the heat sink with the light source may for example be part of a so-called downlight.
  • LED-based light sources are increasingly finding their way into nowadays
  • LEDs Light applications use.
  • the luminous intensities achievable with LEDs are so high in the meantime that in almost all cases previously used light sources - for example light bulbs or fluorescent lamps - can be replaced by LEDs.
  • LEDs With regard to their reliability and the possibilities for controlling, LEDs have clear advantages.
  • the use of LEDs for lighting brings that
  • a classic heat sink is usually made of metal - in particular
  • the present invention has for its object to provide a novel heat sink for cooling light sources, which has good cooling properties and at the same time can be relatively easily and inexpensively manufactured.
  • the object is achieved by a heat sink with the features of claim 1 and by a method for producing a heat sink according to claim 7.
  • the invention proposes to form the heat sink in several parts, in particular in two parts. He has for this purpose an annular outer body and a central body, which is formed by a separate element and arranged in a central opening of the outer body.
  • a heat sink is accordingly proposed for a light source, in particular for an LED light source, wherein the heat sink has an annular outer body and a central body which is formed by a separate element and arranged in a central opening of the outer body.
  • a method for producing a heat sink for a light source, in particular for an LED light source is proposed, wherein initially a ring-like outer body is provided with a central opening and then into the opening
  • the central body forms a flat support surface for the light source.
  • he may in particular also have means for fixing the light source. These may be formed for example by drilling or the like.
  • outer body and central body are preferably carried out in that the outer body is shrunk onto the central body. As a result, a full-surface contact is ensured, which allows a good transfer of heat from the central body to the outer body.
  • the subdivision of the heat sink according to the invention in particular opens up the possibility of producing the outer body in the extrusion process.
  • the central body itself is preferably designed as a solid material body in order to optimize the removal of the heat emanating from the light source.
  • FIG. 1 and 2 are views of a recessed luminaire in the form of a so-called downlight, in which the heat sink according to the invention is used;
  • FIG. 3 shows a view of the outer body of the heat sink according to the invention
  • FIG. 4a to 4c are views of a central body of the heat sink according to the invention.
  • Figs. 5 and 6 are views of the formed by the outer body and the central body
  • Fig. 7 is a view of a heat sink according to the invention with it
  • Embodiment in a so-called downlight, so a recessed luminaire, which is complained in the circular opening of a ceiling used.
  • the properties of the heat sink in a particularly advantageous manner to bear.
  • the heat sink according to the invention could also be used in other types of luminaires.
  • the heat sink 10 represents the central element of the luminaire. In particular, the heat sink 10 simultaneously also serves to hold further elements of the luminaire 1.
  • the heat sink 10 has the shape of a flat cylinder and is provided over its peripheral region with numerous fins or cooling fins 1 1, through which the surface is increased. Heat exchange with the environment is optimized by this increase in surface area.
  • the heat sink 10 also serves to support a light source, which in the present case is, in particular, an LED light source.
  • a light source which in the present case is, in particular, an LED light source.
  • several LEDs can be arranged in a matrix-like manner on a circuit board. Since the LEDs themselves represent almost punctiform light sources, an optical element 2, for example a diffusing screen, is arranged in front of the LEDs to even out the light output.
  • the heat sink 10 is formed in two parts and consists on the one hand of an annular outer body 15, which is shown in Figure 3, and a central body 20, which is shown in Figures 4a to 4c.
  • the annular outer body 15 consists essentially of a circular arrangement of fins or ribs 1 1, which extend laterally from a central opening 16 over the circumference.
  • the lamellas 11 can again branch in a Y-shape on the way to the outside, as a result of which an additional enlargement of the surface is achieved.
  • the outer body 15 shown in FIG. 3 can be produced in a simple manner as part of an extrusion process. This process is much easier and cheaper to carry out than a production in aluminum die-casting.
  • a final metal body having the cross-sectional configuration shown in the figures is made larger in length. This rod-like structure then only has to be cut to the appropriate length of the heat sink.
  • the second element which ultimately forms the heat sink 10 is the central body 20 shown in Figures 4a to 4c, which is preferably a solid material body, which is in particular integrally formed. He first has a larger disc 21, on one side of a cylinder-like
  • Projection 22 is arranged.
  • the outer contour of the projection 22 corresponds to the opening 16 of the outer body 15, so that the central body 20 can be accurately inserted into the outer body 15 as described below.
  • Attachment of the central body 20 on the outer body 15 is preferably carried out by shrinking.
  • the outer body 15 is first heated so that it expands slightly and in particular the cross-sectional area of the passage opening 16 is increased.
  • the cylindrical Vorsprang 22 of the central body 20 can be inserted into the opening 16. Subsequently, the
  • a full-surface contact with the board 31 is ensured, so that an optimal
  • Heat coupling is achieved.
  • the attachment of the board 31 to the central body 20 by means of four screws 32 which engage in corresponding holes 23 on the plate 22, the heat transfer can be further optimized by the fact that between the board 31 and support plate 21, a thermally conductive material, For example, a corresponding paste or the like is provided.
  • a strain relief device 35 can also be fastened on the circumference of the support plate 21, by means of which cables leading to the LED circuit board 31 can be fixed.
  • the present invention provides a heat sink which on the one hand can be produced simply and inexpensively, on the other hand ensures optimum heat transfer or removal of the heat generated by a light source.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Led Device Packages (AREA)

Abstract

L'invention concerne une installation d'ascenseur (1) comportant une cabine d'ascenseur (10), des portes d'ascenseur (15), un mécanisme d'entraînement (20), une commande d'ascenseur (30) et un contrepoids (13) pouvant être déplacé en direction opposée à la cabine d'ascenseur (10). La commande d'ascenseur (30) comprend un module de commande des portes (31) ou peut être raccordée à un module de commande des portes (31), qui définit, en fonction de la situation de chargement de la cabine d'ascenseur (10), une période d'ouverture standard des portes ou une période d'ouverture prolongée des portes.
EP11704788.6A 2010-02-23 2011-02-23 Dissipateur thermique pour une source lumineuse Active EP2539632B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010002235A DE102010002235A1 (de) 2010-02-23 2010-02-23 Kühlkörper für eine Lichtquelle
PCT/EP2011/052647 WO2011104254A1 (fr) 2010-02-23 2011-02-23 Dissipateur thermique pour une source lumineuse

Publications (2)

Publication Number Publication Date
EP2539632A1 true EP2539632A1 (fr) 2013-01-02
EP2539632B1 EP2539632B1 (fr) 2016-01-06

Family

ID=43858405

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11704788.6A Active EP2539632B1 (fr) 2010-02-23 2011-02-23 Dissipateur thermique pour une source lumineuse

Country Status (5)

Country Link
US (1) US20130120998A1 (fr)
EP (1) EP2539632B1 (fr)
CN (1) CN102884376A (fr)
DE (1) DE102010002235A1 (fr)
WO (1) WO2011104254A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2708810B1 (fr) * 2012-09-12 2016-01-06 OSRAM GmbH Procédé pour assembler des dissipateurs thermiques et outil correspondant
DE102012222184A1 (de) 2012-12-04 2014-06-05 Zumtobel Lighting Gmbh Leuchte mit Luftleitflächen
CN103398360B (zh) * 2013-08-10 2016-04-27 宁波丽星照明科技有限公司 Led灯具散热结构
KR102417439B1 (ko) * 2015-10-20 2022-07-07 쑤저우 레킨 세미컨덕터 컴퍼니 리미티드 조명 장치
EP3336423B1 (fr) 2016-12-14 2019-11-06 Gifas Beteiligungen GmbH Éclairage, procédé de fabrication d'un corps de base et/ou un élément de refroidissement de l'éclairage et son utilisation

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002097884A1 (fr) * 2001-05-26 2002-12-05 Gelcore, Llc Module de del de grande puissance pour un eclairage
US6974233B1 (en) * 2003-05-29 2005-12-13 Truman Aubrey Fluorescent lighting fixture assemblies
KR100593919B1 (ko) * 2004-07-01 2006-06-30 삼성전기주식회사 차량 전조등용 발광 다이오드 모듈 및 이를 구비한 차량전조등
US7758223B2 (en) * 2005-04-08 2010-07-20 Toshiba Lighting & Technology Corporation Lamp having outer shell to radiate heat of light source
WO2007141714A1 (fr) * 2006-06-07 2007-12-13 Koninklijke Philips Electronics N.V. Dispositif d'éclairage pourvu d'un réflecteur et d'un logement métallique
DE202006009553U1 (de) * 2006-06-16 2006-08-31 Chien, Chen-Chun, Sansia LED-Scheinwerfermodul
CN201003739Y (zh) * 2007-02-09 2008-01-09 鸿坤科技股份有限公司 发光二极管灯具
US20080192436A1 (en) * 2007-02-09 2008-08-14 Cooler Master Co., Ltd. Light emitting device
DE102007021206A1 (de) * 2007-05-05 2008-11-06 Hella Kgaa Hueck & Co. Kühlkörper
DE202007009655U1 (de) * 2007-07-11 2007-09-06 Aeon Lighting Technology Inc., Chung-Ho City Wärmeableitvorrichtung für LED-Licht emittierendes Modul
CN101457917A (zh) * 2007-12-13 2009-06-17 连展科技（深圳）有限公司 发光二极体之高散热光模组及制作方法
DE102008017614B8 (de) * 2008-04-04 2010-02-11 Insta Elektro Gmbh Beleuchtungseinrichtung
TWM348981U (en) * 2008-06-12 2009-01-11 Acpa Energy Conversion Devices Co Ltd Heat dissipation module
DE202008016231U1 (de) * 2008-12-08 2009-03-05 Huang, Tsung-Hsien, Yuan Shan Wärmeableiter-Modul
CN101769523A (zh) * 2009-01-05 2010-07-07 富准精密工业(深圳)有限公司 发光二极管灯具
US8907550B2 (en) * 2009-03-16 2014-12-09 Molex Incorporated Light module

Also Published As

Publication number Publication date
US20130120998A1 (en) 2013-05-16
WO2011104254A1 (fr) 2011-09-01
EP2539632B1 (fr) 2016-01-06
WO2011104254A8 (fr) 2012-09-20
CN102884376A (zh) 2013-01-16
DE102010002235A1 (de) 2011-08-25

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