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EP2228598B1 - Structure de support de lampe à DEL - Google Patents

Structure de support de lampe à DEL Download PDF

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Publication number
EP2228598B1
EP2228598B1 EP09003489A EP09003489A EP2228598B1 EP 2228598 B1 EP2228598 B1 EP 2228598B1 EP 09003489 A EP09003489 A EP 09003489A EP 09003489 A EP09003489 A EP 09003489A EP 2228598 B1 EP2228598 B1 EP 2228598B1
Authority
EP
European Patent Office
Prior art keywords
base
heat dissipating
lamp holder
holder structure
road lamp
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
EP09003489A
Other languages
German (de)
English (en)
Other versions
EP2228598A1 (fr
Inventor
Kuo-Len Lin
Chen-Hsiang Lin
Hwai-Ming Wang
Chiao-Li Huang
Ken Hsu
Chih-Hung Cheng
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.)
CpuMate Inc
Golden Sun News Techniques Co Ltd
Original Assignee
CpuMate Inc
Golden Sun News Techniques Co Ltd
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 CpuMate Inc, Golden Sun News Techniques Co Ltd filed Critical CpuMate Inc
Priority to AT09003489T priority Critical patent/ATE514036T1/de
Priority to EP09003489A priority patent/EP2228598B1/fr
Publication of EP2228598A1 publication Critical patent/EP2228598A1/fr
Application granted granted Critical
Publication of EP2228598B1 publication Critical patent/EP2228598B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/51—Cooling arrangements using condensation or evaporation of a fluid, e.g. heat pipes
    • 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
    • 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
    • F21V29/71—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks using a combination of separate elements interconnected by heat-conducting means, e.g. with heat pipes or thermally conductive bars between separate heat-sink elements
    • F21V29/713—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks using a combination of separate elements interconnected by heat-conducting means, e.g. with heat pipes or thermally conductive bars between separate heat-sink elements in direct thermal and mechanical contact of each other to form a single system
    • 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
    • F21V29/767—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 directions perpendicular to 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
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/83—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks the elements having apertures, ducts or channels, e.g. heat radiation holes
    • 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 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 light emitting diode (LED) lamp, and more particularly to an LED road lamp holder structure.
  • LED light emitting diode
  • LED Light emitting diode
  • LED is used extensively as a light source for lamps, but LED is one of the electronic components with waterproof and dust-resisting issues when the LED is used as an outdoor lamp. Furthermore, it is necessary to take the heat dissipation into consideration.
  • a conventional heat sink or heat dissipating device used in a computer system is mainly used as the heat dissipating structure in an LED road lamp holder, but none has a lamp holder with an enhanced heat dissipating effect.
  • the LED road lamp holder has an internal structure in contact with a heated portion, and thus it is an important subject for LED lamp manufacturers to improve the heat dissipating device in conformity with the internal structure of the LED road lamp holder, so as to enhance the heat dissipating effect of the LED lamps.
  • the inventor of the present invention based on years of experience in the related industry to conduct extensive researches and experiments, and finally developed an improved LED road lamp holder in accordance with the present invention to enhance the heat dissipating effect of the road lamps.
  • a heat exchange device that includes a structural section and a thin layer of material attached to a surface of the structural section.
  • the thin layer of material has a thickness less than 100 microns.
  • the combination of the structural section and the thin layer of material has a higher thermal transfer coefficient than the structural section alone, the thermal transfer coefficient representing an ability to exchange thermal energy with an ambient gas.
  • US 2008/0192478 A1 discloses a light-emitting diode illuminating equipment, including a heat-dissipating plate device, a plurality of heat-conducting devices, a plurality of diode light-emitting apparatuses, a plurality of optical devices, and a hollow barrel.
  • the hollow barrel is engaged to the heat-dissipating plate device to form a space for accomodating the heat-conducting devices, the diode light-emitting apparatuses corresponds to one of the heat-conducting devices.
  • Each of the optical devices corresponds to at least one of the diode light-emitting apparatuses and modulates a light pattern of the corresponding diode light-emitting apparatus.
  • each of the optical devices includes a cat's-eye-like lens.
  • the cat's-eye-like lens includes a surface, where a groove is formed along an ellipse minor axis of the lens, such that the light transmitted through the lens can form a light pattern for a specific request.
  • the present invention provides an LED road lamp holder structure, comprising a lamp guard, an LED unit, and a heat dissipating device, wherein the LED unit is installed at the bottom of the lamp guard, and the heat dissipating device is installed in the lamp guard and includes a base attached onto the LED unit, a vapor chamber and two heat dissipating elements, and the vapor chamber has a heated section attached to the base, two heat transmitting sections bent and extended upward to both sides of the heated section respectively, a cooling section bent and extended laterally and separately from the two heat transmitting sections, two heat dissipating elements, each having a heated base, and a plurality of heat dissipating fins disposed on the heated base, and the two heated bases attached onto external sides of the two heat transmitting sections of the vapor chamber respectively, and two cooling sections of the vapor chamber attached to the internal periphery of the top of the lamp guard.
  • the present invention can conduct a portion of the heat produced by the LED unit to the two heat dissipating elements through the vapor chamber of the heat dissipating device, and the remaining portion of the heat can be discharged from the lamp guard to the outside by the attaching the two cooling sections of the vapor chamber with the internal periphery of the top of the lamp guard, so as to enhance the heat dissipating effect.
  • the present invention provides an LED road lamp holder structure, comprising a lamp guard 1, an LED unit 2, and a heat dissipating device 3.
  • the LED unit 2 is installed at the bottom of the lamp guard 1 for providing illuminations
  • the heat dissipating device 3 is installed in the lamp guard 1, attached to the backside of the LED unit 2, and extended towards the top of the lamp guard 1 for conducting heat and providing the required heat dissipating effect for the LED unit 2.
  • the lamp guard 1 is comprised of a chassis 10 and an upper casing 11, and the LED unit 2 is installed at the bottom of the chassis 10, such that the light source of the LED unit 2 can be projected towards the bottom of the lamp guard 1.
  • a cover plate 12 is formed and erected separately on both left and right sides of the chassis 10, and the slightly curved upper casing 11 is disposed between two cover plates 12, and a plurality of ventilation holes 120 are disposed on the cover plate 12.
  • a stud 100 is erected in the chassis 10, and a screw hole 110 is disposed at a position corresponding to the upper casing 11 for passing a screw 111 and securing the screw 11 into the stud 100 to combine the chassis 10 and the upper casing 11.
  • a wire tube 13 is installed in the lamp guard 1 and connected to one of the cover plates 12 for installing a power cable (not shown in the figure).
  • the heat dissipating device 3 is installed in the lamp guard and comprises a base 30, at least one curved vapor chamber 31, and a heat dissipating element 32 disposed separately on both left and right sides of the vapor chamber 31.
  • the base 30 is in the form of a sheet attached on the backside of the LED unit 2 for dissipating heat.
  • the base 30 has a groove 301 disposed at the bottom of the base 30 (as shown in Fig. 4 ) and provided for embedding and containing the LED unit 2.
  • the vapor chamber 31 is in the form of a long sheet with both ends bent upward along the lengthwise direction to form a heated section 310 attached onto the base 30, and two heat transmitting sections 311 are bent and extended upward from both sides of the heated section 310, and a cooling section 312 is bent and extended laterally from each of the two heat transmitting sections 311.
  • the two heat dissipating elements 32 can be an aluminum extruded heat sink (as shown in the figure), a stacked heat sink or any other heat sink (not shown in the figure) having a heated base 320, and a plurality of heat dissipating fins 321 are formed on the heated base 320 and arranged with a gap from each other.
  • the two heat dissipating elements 32 are attached onto external sides of the two heat transmitting sections 311 of the vapor chamber 31 by their respective heated base 320, such that each heat dissipating fin 321 is extended from the space sideway to increase the heat dissipating area.
  • each of the two heat dissipating elements 32 has a slot 322 disposed on the heated base 320 and proximate to the bottom of the base 30 for abutting the corners on both sides of base 30, a plurality of through holes 300, 323 for passing the base 30 and the heated base 320, and a screw device 324 such as a bolt for securing the base 30 with the heated base 320.
  • the heated base 320 of the two heat dissipating elements 32 has an embedding groove 325 disposed proximate to an external side of the vapor chamber 31, wherein the embedding groove 325 has a width corresponding to the vapor chamber 31 for installing the vapor chamber 31 between the embedding grooves 325 of the two heat dissipating elements 32.
  • the two condensing sections 312 of the vapor chamber 31 are bent sideway in the same direction with each other (as shown in the figures) or bent sideway in opposite directions with each other (not shown in the figure). In this preferred embodiment, the two condensing sections 312 are not in contact with each other. In the preferred embodiment as shown in Fig. 5 , the two condensing sections are disposed corresponding to each other and in contact with each other, and the quantity of vapor chambers 31 is increased to more than one.
  • the two condensing sections 312 of the vapor chamber 31 are extended upward through their respective heat transmitting section 311 and attached onto the internal surface of the upper casing 11 of the lamp guard 1, such that after the base 30 of the heat dissipating device 3 absorbs the heat produced by the LED unit, the vapor chamber 31 will conduct a portion of the heat to the upward direction, and the two heat dissipating elements 32 dissipate another portion of the heat to the outside.
  • the two condensing sections 312 of the vapor chamber 31 are attached onto the internal periphery of the top of the lamp guard 1 for sharing the burden of discharging the remaining heat from the lamp guard 1 to the outside.
  • the vapor chamber 31 is formed by arranging a plurality of heat pipes 313 closely adjacent with each other.

Landscapes

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

Claims (13)

  1. Structure support de lampadaire routier à diodes électroluminescentes (DEL), comprenant :
    - un protecteur de lampe (1) ;
    - une unité à DEL (2) installée au fond du protecteur de lampe (1) ; et
    - un dispositif de dissipation de chaleur (3), installé dans le protecteur de lampe (1), et comprenant :
    - une base (30), attachée sur l'unité à DEL (2),
    caractérisée par
    - une chambre à vapeur (31), ayant une portion chauffée (310) attachée à la base (30), deux portions de transmission de chaleur (311), recourbées et s'étendant vers le haut sur les deux côtés de la portion chauffée (310) respectivement, et une portion de condensation (312), recourbée et s'étendant latéralement depuis les deux portions de transmission de chaleur (311), et les deux portions de condensation (312) sont attachées à la périphérie intérieure du sommet du protecteur de lampe (1) ; et
    - deux éléments de dissipation de chaleur (32), ayant chacun une base chauffée (320), et une pluralité d'ailettes de dissipation de chaleur (321) disposées sur la base chauffée (320), et les deux bases chauffées (320) étant attachées sur des côtés extérieurs des deux portions de transmission de chaleur (311) respectivement.
  2. Structure support de lampadaire à DEL selon la revendication 1, dans laquelle le protecteur de lampe (1) est constitué d'un châssis (10) et d'un casier supérieur (11), et l'unité à DEL (2) est installée au fond du châssis (10), et les deux portions de condensation (312) sont attachées sur la périphérie intérieure du sommet du casier supérieur (11).
  3. Structure support de lampadaire à DEL selon la revendication 2, dans laquelle le châssis (10) inclut un téton dressé (100), un trou à vis (110) disposé à une position correspondant au casier supérieur (11) pour faire passer une vis (111) et attacher la vis (111) dans le téton (100) pour combiner le châssis (10) et le casier supérieur (11).
  4. Structure support de lampadaire à DEL selon la revendication 2, dans laquelle le châssis (10) comprend une plaque de couverture (12) formée séparément sur des côtés avant et arrière du châssis (10), et le casier supérieur (11) a sensiblement une forme arquée et est disposé entre les deux plaques de couverture (12).
  5. Structure support de lampadaires à DEL selon la revendication 4, dans laquelle les deux plaques de couverture (12) comportent sur elles-mêmes une pluralité de trous de ventilation (120).
  6. Structure support de lampadaire à DEL selon la revendication 1, dans laquelle la base (30) du dispositif de dissipation de chaleur (30) comporte une rainure (301) disposée de manière concave sur le fond de la base (30), et l'unité à DEL (2) est noyée dans la rainure (301).
  7. Structure support de lampadaire à DEL selon la revendication 1, dans laquelle la chambre à vapeur (31) est prévue en nombre supérieur à un.
  8. Structure support de lampadaire à DEL selon la revendication 1, dans laquelle la chambre à vapeur (31) du dispositif de dissipation de chaleur (30) est formée en agençant une pluralité de tubes caloporteurs (313) de façon intimement adjacente les uns aux autres.
  9. Structure support de lampadaire à DEL selon la revendication 1, dans laquelle les deux portions de condensation (312) de la chambre à vapeur (31) du dispositif de dissipation de chaleur (30) sont cintrées vers le côté et se correspondent mutuellement.
  10. Structure support de lampadaire à DEL selon la revendication 9, dans laquelle les deux portions de condensation (312) sont engagées et en contact l'une avec l'autre.
  11. Structure support de lampadaire à DEL selon la revendication 1, dans laquelle chacun des deux éléments de dissipation de chaleur (32) du dispositif de dissipation de chaleur (30) comporte une fente (322) disposée au niveau de la base chauffée (30) et à proximité du fond de la base (30) pour venir buter contre les coins sur les deux côtés de la base (30).
  12. Structure support de lampadaire à DEL selon la revendication 11, dans laquelle la base (30) et les de base chauffée (30) ont une pluralité de trous traversants (300, 323) disposés sur elles-mêmes, et un dispositif à vis (324) pour attacher la base (30) et la base chauffée (30).
  13. Structure support de lampadaire à DEL selon la revendication 1, dans laquelle la base chauffée (30) des deux éléments de dissipation de chaleur (32) du dispositif de dissipation de chaleur (30) comprend une rainure réceptrice (325), disposée à proximité d'un côté extérieur de la chambre à vapeur (31), et la rainure réceptrice (325) a une largeur correspondant à la chambre à vapeur (31), et la chambre à vapeur (31) est installée entre les rainures réceptrices (325) des deux éléments de dissipation de chaleur (32).
EP09003489A 2009-03-10 2009-03-10 Structure de support de lampe à DEL Not-in-force EP2228598B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AT09003489T ATE514036T1 (de) 2009-03-10 2009-03-10 LED-STRAßENLAMPENHALTERUNGSSTRUKTUR
EP09003489A EP2228598B1 (fr) 2009-03-10 2009-03-10 Structure de support de lampe à DEL

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP09003489A EP2228598B1 (fr) 2009-03-10 2009-03-10 Structure de support de lampe à DEL

Publications (2)

Publication Number Publication Date
EP2228598A1 EP2228598A1 (fr) 2010-09-15
EP2228598B1 true EP2228598B1 (fr) 2011-06-22

Family

ID=40790679

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09003489A Not-in-force EP2228598B1 (fr) 2009-03-10 2009-03-10 Structure de support de lampe à DEL

Country Status (2)

Country Link
EP (1) EP2228598B1 (fr)
AT (1) ATE514036T1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4150281B1 (fr) * 2020-05-14 2023-11-22 Signify Holding B.V. Élément de chambre de vapeur

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102128424B (zh) * 2010-12-13 2012-12-19 上海亚明灯泡厂有限公司 Led光源模块安装结构及安装方法
CN102213406B (zh) * 2011-06-24 2013-03-20 周小龙 一种防水透气led路灯灯壳
DE202011051579U1 (de) * 2011-10-10 2013-01-17 Zumtobel Lighting Gmbh Kühlkörper-Anordnung für eine LED-Leuchte sowie LED-Leuchte
CN102900986A (zh) * 2012-10-26 2013-01-30 深圳市耀嵘科技有限公司 灯具散热器及led节能灯
KR101524127B1 (ko) * 2013-07-23 2015-06-01 이덕주 Led유닛 방열 장치 및 방법
EP4008953A1 (fr) * 2020-12-02 2022-06-08 NoelleLED Sp. z o.o. Éclairage led avec système de refroidissement

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070230185A1 (en) 2006-03-31 2007-10-04 Shuy Geoffrey W Heat exchange enhancement
CN100583470C (zh) * 2006-12-15 2010-01-20 富准精密工业(深圳)有限公司 发光二极管散热装置组合
TWI342625B (en) 2007-02-14 2011-05-21 Neobulb Technologies Inc Light-emitting diode illuminating equipment

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4150281B1 (fr) * 2020-05-14 2023-11-22 Signify Holding B.V. Élément de chambre de vapeur

Also Published As

Publication number Publication date
ATE514036T1 (de) 2011-07-15
EP2228598A1 (fr) 2010-09-15

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