EP1895232B1 - Structure de dissipation thermique amélioré pour lampe d'éclairage public avec diodes électroluminescentes - Google Patents

Structure de dissipation thermique amélioré pour lampe d'éclairage public avec diodes électroluminescentes Download PDF

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Publication number
EP1895232B1
EP1895232B1 EP06119702A EP06119702A EP1895232B1 EP 1895232 B1 EP1895232 B1 EP 1895232B1 EP 06119702 A EP06119702 A EP 06119702A EP 06119702 A EP06119702 A EP 06119702A EP 1895232 B1 EP1895232 B1 EP 1895232B1
Authority
EP
European Patent Office
Prior art keywords
heat sink
sink structure
cover
polymer
light
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.)
Not-in-force
Application number
EP06119702A
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German (de)
English (en)
Other versions
EP1895232A1 (fr
Inventor
Tsung-Wen Chan
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.)
Chan Tsung-Wen
Original Assignee
Chan Tsung-Wen
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 Chan Tsung-Wen filed Critical Chan Tsung-Wen
Priority to EP06119702A priority Critical patent/EP1895232B1/fr
Priority to AT06119702T priority patent/ATE467086T1/de
Priority to DE602006014144T priority patent/DE602006014144D1/de
Publication of EP1895232A1 publication Critical patent/EP1895232A1/fr
Application granted granted Critical
Publication of EP1895232B1 publication Critical patent/EP1895232B1/fr
Anticipated expiration legal-status Critical
Not-in-force legal-status Critical Current

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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
    • F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
    • F21V21/10—Pendants, arms, or standards; Fixing lighting devices to pendants, arms, or standards
    • F21V21/116—Fixing lighting devices to arms or standards
    • 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
    • F21V29/85—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems characterised by the material
    • F21V29/87—Organic material, e.g. filled polymer composites; Thermo-conductive additives or coatings therefor
    • 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
    • F21V31/00—Gas-tight or water-tight arrangements
    • F21V31/005—Sealing arrangements therefor
    • 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
    • F21S8/08—Lighting devices intended for fixed installation with a standard
    • F21S8/085—Lighting devices intended for fixed installation with a standard of high-built type, e.g. street light
    • F21S8/086—Lighting devices intended for fixed installation with a standard of high-built type, e.g. street light with lighting device attached sideways of the standard, e.g. for roads and highways
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
    • F21W2131/10—Outdoor lighting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
    • F21W2131/10—Outdoor lighting
    • F21W2131/103—Outdoor lighting of streets or roads
    • 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 [2D] 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 invention relates to a heat sink structure according to the preamble of claim 1.
  • the present invention relates generally to a heat sink structure for a light-emitting diode (LED) based streetlamp, and particularly to an improved heat sink structure for LED based streetlamp.
  • LED light-emitting diode
  • a heat sink structure of the initially-mentioned type is known, e.g., from WO 02/101285 .
  • the streetlamps are generally in the form of bulbs. However, they are considered having the disadvantages of high power consumption and short lifetime. Recently, light-emitting diode (LED) has been used for the torch as a power source.
  • LED light-emitting diode
  • High power LED is a kind of LED which can emit light normally even only with the power 0.5 to 3 watts supplied. In addition to the torch, such kind of LED has also been used in the headlight.
  • the high power LED still can not be effectively used as a backlight source for liquid crystal display (LCD) since the light emitting efficiency thereof is too low therefor. So far, there are still few LEDs for the LCD on market, since they have to be further developed for the practical use.
  • the high power LEDs have gradually become indispensable in our daily life. Being technically limited by the LED materials and packaging technology, the LEDs still have not lived up to the specifications of the general lighting means in luminance and lifetime. Further, the heat energy, generated when the LED emits light, has to be properly removed therefrom. If the heat sink mechanism is not properly provided, the high temperature contributed by the heat energy will cause the luminance and lifetime reduced and the light wavelength shifted with respect to the LEDs. In the case of the streetlamp, the poor heat sink mechanism also leads to a quick damage thereof.
  • an object of the present invention to provide a heat sink structure for light-emitting diode (LED) based streetlamp, through which heat energy generated from LEDs therein can be rapidly removed therefrom.
  • LED light-emitting diode
  • the invention provides a heat sink structure according to claim 1. Further embodiments of the invention are described in the dependent claims.
  • the heat sink structure for LED based streetlamp comprises an upper cover on which a plurality of heat sink fins are formed integrally and a lower cover.
  • the heat energy generated from the LEDs, mounted on a polymer-coated gold substrate, within the upper and lower covers can be removed through the heat sink fins, effectuate rapid removing of the heat energy.
  • the polymer-coated gold substrate may be varied in area and shape.
  • An upper silicone glue and a lower silicon glue are provided in the upper and lower covers, respectively, so that the heat sink structure can be water resistant.
  • a fastening member is disposed between the upper and lower covers so that the upper and lower covers may be not totally separated from each other when one of they is moved from the other for maintenance and replacement of elements in the heat sink structure.
  • a rear hole and a lower hole are formed on the upper and lower covers, respectively, for insertion and fixation of a lamp post. When the lamp post is absent, an upper plug and a lower plug may be used to choked up the rear and lower holes, respectively, so that the heat sink structure can be water resistant.
  • the present invention discloses a heat sink structure for light-emitting diode (LED) based streetlamp, which will be described taken with the preferred embodiments in conjunction with the drawings. However, they should not be deemed limitative but merely for description.
  • LED light-emitting diode
  • the heat sink structure for high power LED based streetlamp according to an embodiment of the present invention is schematically shown therein.
  • the heat sink structure comprises an upper cover 1, a lower cover 2 and a polymer-coated gold substrate 5. Between the upper cover 1 and the lower cover 2, there is a fastening member 13 for fixing the two covers 1, 2 together.
  • the fixation member 13 is disposed on an outer surface of the upper cover 1 at a front end thereof, or on an inner surface of the upper cover 1 at a rear end thereof. As such, the upper cover 1 may be moved from the lower cover 2 but without being totally separated from the lower cover 2.
  • the upper and lower covers 1, 2 are each a rectangular body.
  • each of the upper and lower covers 11, 21 may also have a circular or other structure.
  • an upper plug 16 and a lower plug 26 may be used to choke up the rear and lower holes 11, 21 so that the heat sink structure can be water resistant.
  • a lamp mask 3 is disposed on the outer surface of the lower cover 2.
  • the upper and lower covers 1, 2 have an upper slot 17 and a lower slot 27, respectively.
  • the upper slot 17 is formed at a rim of the inner surface of the upper cover 1.
  • An upper silicone glue 15 may be received within the upper slot 17.
  • the lower slot 27 is formed at a rim of the inner surface of the lower cover 2.
  • a lower silicone glue 25 may be received within the lower slot 27.
  • the heat sink structure can be water resistant when the upper and lower covers 1, 2 are assembled together.
  • a plurality of high power LEDs 4 are fixedly mounted on the polymer-coated gold substrate 5.
  • the polymer-coated gold substrate 5 may also take the form of rectangular or circular shape.
  • the polymer-coated gold substrate 5 is fixed on the inner surface of the upper cover 1 by means of a screw 18. In this manner, the heat energy generated from the high power LEDs can be transmitted through the polymer-coated gold substrate 5 to a plurality of heat sink fins 12, which may be made of aluminum, and further to the ambient air.
  • the plurality of heat sink fins 12 are integrally formed on the outer surface of the upper cover 1. As such, the heat energy generated from the LEDs 4 can be rapidly moved therefrom.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (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)
  • Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)

Claims (9)

  1. Structure de puits de chaleur pour réverbère à base de diode électroluminescente, "DEL", (4) comprenant :
    un couvercle supérieur (1) ayant une surface supérieure externe et une surface supérieure interne et comprenant un orifice arrière (11) sur la surface supérieure externe à son extrémité arrière pour y fixer un poteau de réverbère, dans laquelle une pluralité d'ailettes de puits de chaleur (12) sont formées sur une partie supérieure de la surface supérieure externe ; caractérisée par :
    le couvercle supérieur (1) qui comprend en outre un élément de fixation (13) sur la surface supérieure externe à son extrémité avant, une fente supérieure (17) formée sur un rebord de la surface supérieure interne, une couche de colle de silicone supérieure (15) étant appliquée sur la fente supérieure (17) ;
    un couvercle inférieur (2) ayant une surface inférieure externe et une surface inférieure interne et comprenant l'élément de fixation (13) sur la surface inférieure externe à son extrémité avant, un orifice inférieur (21) sur la surface inférieure externe à son extrémité arrière pour y fixer le poteau de réverbère et une fente inférieure (27) formée sur un rebord de la surface inférieure interne du couvercle inférieur (2), une couche de colle de silicone inférieure (25) étant appliquée dans la fente inférieure (27) ; et
    un substrat d'or revêtu de polymère (5) disposé à l'intérieur du couvercle supérieur (1) et formé d'une carte de circuit imprimé, "PCB", ayant un matériau à base de cuivre pour conduction de la chaleur.
  2. Structure de puits de chaleur selon la revendication 1, dans laquelle l'élément de fixation (13) est disposée aux extrémités arrière des couvercles supérieur et inférieur (2, 1), de sorte que les couvercles supérieur et inférieur (2, 1) soient encore raccordés l'un à l'autre lorsque l'un des couvercles supérieur et inférieur (2, 1) est déplacé par rapport à l'autre.
  3. Structure de puits de chaleur selon la revendication 1, dans laquelle l'orifice arrière (11) est bouché par un bouchon supérieur (16) lorsqu'il n'y a pas de poteau de réverbère.
  4. Structure de puits de chaleur selon la revendication 1, dans laquelle l'orifice inférieur (21) est bouché par un bouchon inférieur (26) lorsqu'il n'y a pas de poteau de réverbère.
  5. Structure de puits de chaleur selon la revendication 1, dans laquelle une pluralité de DEL (4) est montée de manière fixe sur le substrat d'or revêtu de polymère (5).
  6. Structure de puits de chaleur selon la revendication 1, dans laquelle le substrat d'or revêtu de polymère (5) a une forme rectangulaire.
  7. Structure de puits de chaleur selon la revendication 1, dans laquelle le substrat d'or revêtu de polymère (5) a une forme circulaire.
  8. Structure de puits de chaleur selon la revendication 1, dans laquelle chacun des couvercles supérieur et inférieur (2, 1) a une forme circulaire.
  9. Structure de puits de chaleur selon la revendication 1, dans laquelle chacun des couvercles supérieur et inférieur (2, 1) a une forme rectangulaire.
EP06119702A 2006-08-29 2006-08-29 Structure de dissipation thermique amélioré pour lampe d'éclairage public avec diodes électroluminescentes Not-in-force EP1895232B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP06119702A EP1895232B1 (fr) 2006-08-29 2006-08-29 Structure de dissipation thermique amélioré pour lampe d'éclairage public avec diodes électroluminescentes
AT06119702T ATE467086T1 (de) 2006-08-29 2006-08-29 Verbesserte kühlkörperstruktur für led strassenleuchte
DE602006014144T DE602006014144D1 (de) 2006-08-29 2006-08-29 Verbesserte Kühlkörperstruktur für LED Strassenleuchte

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP06119702A EP1895232B1 (fr) 2006-08-29 2006-08-29 Structure de dissipation thermique amélioré pour lampe d'éclairage public avec diodes électroluminescentes

Publications (2)

Publication Number Publication Date
EP1895232A1 EP1895232A1 (fr) 2008-03-05
EP1895232B1 true EP1895232B1 (fr) 2010-05-05

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EP06119702A Not-in-force EP1895232B1 (fr) 2006-08-29 2006-08-29 Structure de dissipation thermique amélioré pour lampe d'éclairage public avec diodes électroluminescentes

Country Status (3)

Country Link
EP (1) EP1895232B1 (fr)
AT (1) ATE467086T1 (fr)
DE (1) DE602006014144D1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202012101222U1 (de) 2012-04-03 2012-07-30 Ulrich Spevacek LED-Außenleuchte, insbesondere LED-Straßenleuchte
US20130265761A1 (en) * 2012-04-06 2013-10-10 Ruud Lighting, Inc. LED Light Fixture with Inter-Fin Air-Flow Interrupters

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008047356A1 (de) 2008-09-15 2010-04-15 Georg Eickholt Elektro Gmbh Leuchtmittel mit Leuchtdioden sowie Leuchte dafür
CN101368690B (zh) * 2008-09-18 2010-06-02 东莞勤上光电股份有限公司 Led路灯
EP2172693B1 (fr) 2008-10-01 2015-05-20 Enel Sole S.r.L. Dispositif d'éclairage à émission optimisée
CN101440952B (zh) * 2008-12-15 2010-06-02 东莞市邦臣光电有限公司 路灯散热外壳
CA131073S (en) 2009-01-12 2010-05-18 Enel Sole Srl Lamp for road lighting
CA131076S (en) 2009-01-13 2010-05-18 Enel Sole Srl Lamp for road lighting
CN101871583A (zh) * 2009-04-23 2010-10-27 富准精密工业(深圳)有限公司 发光二极管灯具
TW201109579A (en) * 2009-09-15 2011-03-16 Advanced Connectek Inc Structure of LED lamp
WO2011075916A1 (fr) * 2009-12-25 2011-06-30 深圳市邦贝尔电子有限公司 Réverbère à led
CN102506346B (zh) * 2010-01-01 2014-07-02 中山伟强科技有限公司 一种路灯装置及其固定结构
DE102010017672B4 (de) 2010-06-30 2017-04-06 Vossloh-Schwabe Optoelectronic Gmbh & Co. Kg Kühlanordnung mit Kühlkörper und Leuchte für den Außenbereich
US20120262917A1 (en) * 2011-04-15 2012-10-18 Guy Courcelle Energy efficient street lighting led luminaire
GB2494171A (en) * 2011-09-01 2013-03-06 Low Carbon Lighting Ltd Street lighting system
DE202012101344U1 (de) 2012-04-12 2012-06-12 Up Consulting Gbr ( Vertreten Durch Den Gesellschafter: Bohumir Opatril, 59262 Nedvedice, Cz) Beleuchtungseinrichtung und LED-Beleuchtungssystem

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7090370B2 (en) * 2001-06-08 2006-08-15 Advanced Leds Limited Exterior luminaire
US6784357B1 (en) * 2002-02-07 2004-08-31 Chao Hsiang Wang Solar energy-operated street-lamp system
JP3498290B1 (ja) * 2002-12-19 2004-02-16 俊二 岸村 白色ｌｅｄ照明装置

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202012101222U1 (de) 2012-04-03 2012-07-30 Ulrich Spevacek LED-Außenleuchte, insbesondere LED-Straßenleuchte
US20130265761A1 (en) * 2012-04-06 2013-10-10 Ruud Lighting, Inc. LED Light Fixture with Inter-Fin Air-Flow Interrupters
US9121582B2 (en) * 2012-04-06 2015-09-01 Cree, Inc. LED light fixture with inter-fin air-flow interrupters
US9879849B2 (en) 2012-04-06 2018-01-30 Cree, Inc. LED light fixture having heat sink with fins at flow-through opening

Also Published As

Publication number Publication date
EP1895232A1 (fr) 2008-03-05
ATE467086T1 (de) 2010-05-15
DE602006014144D1 (de) 2010-06-17

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