WO2012171734A1 - Structure de dissipation de chaleur et système d'éclairage présentant la structure - Google Patents

Structure de dissipation de chaleur et système d'éclairage présentant la structure Download PDF

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Publication number
WO2012171734A1
WO2012171734A1 PCT/EP2012/058817 EP2012058817W WO2012171734A1 WO 2012171734 A1 WO2012171734 A1 WO 2012171734A1 EP 2012058817 W EP2012058817 W EP 2012058817W WO 2012171734 A1 WO2012171734 A1 WO 2012171734A1
Authority
WO
WIPO (PCT)
Prior art keywords
heat dissipation
assembly
heat
illuminating system
portions
Prior art date
Application number
PCT/EP2012/058817
Other languages
English (en)
Inventor
Anmiao LI
Huanghui LU
You CHEN
Qihui Zhang
Original Assignee
Osram Ag
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 Osram Ag filed Critical Osram Ag
Publication of WO2012171734A1 publication Critical patent/WO2012171734A1/fr

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
    • F21V29/71—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
    • F21V29/717—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 using split or remote units thermally interconnected, e.g. by thermally conductive bars or 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
    • 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
    • F21V29/73—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks the elements being adjustable with respect to each other, e.g. hinged
    • 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
    • F21V14/00—Controlling the distribution of the light emitted by adjustment of elements
    • F21V14/02—Controlling the distribution of the light emitted by adjustment of elements by movement of 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
    • 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 heat dissipation structure for an illuminating system.
  • the present invention further relates to an illuminating system having the heat dissipation structure.
  • good heat dissipation is a most important aspect that should be taken into considera- tion because good heat dissipation performance usually would affect the working efficiency and service life of the illumi ⁇ nating system.
  • a fine contact between an internal LED module and an external metal housing in the high power light emit ⁇ ting diode illuminating system is required so as to render a better thermal management performance of the illumination system.
  • a light output direction often should be adjusted according to different application en ⁇ vironments, especially in the architecture illumination.
  • an orientation of a lighting assembly in the illuminating system usually should be adjusted so as to ad ⁇ just the light output direction.
  • a lighting assembly is mounted on a large heat dissipation body which is fixed on a housing via an adjustable bolt and trans- fers heat of the lighting assembly to the outside via contact with the housing; moreover, an angle of the heat dissipation body may be adjusted by adjusting the bolt so as to further adjust a light output direction.
  • the disadvantages of this solution lie in that it is relatively complex to ad- just the light output direction and it is expensive and heavy .
  • a heat pipe is provided in an illuminating system, the heat pipe is fixed on a housing of the illuminating system and transfers heat from a lighting assembly to the outside environment.
  • the heat pipe is also configured as a rotation axis of the light ⁇ ing assembly so that a light output direction may be ad ⁇ justed.
  • this solution also has the defect, i.e. a gap necessarily exists between the heat pipe and the lighting assembly as the lighting assembly needs to rotate around the heat pipe, which is quite adverse to heat dissipation. More ⁇ over, it is difficult to solder the heat pipe onto a housing that is usually made of aluminum when manufacturing such illuminating system.
  • the object of the present invention lies in pro ⁇ viding a heat dissipation structure for an illuminating system.
  • the heat dissipation structure provides an excellent heat dissipation performance while simply adjusting a light output direction.
  • the other object of the pre ⁇ sent invention lies in providing an illuminating system having such heat dissipation structure.
  • the first object of the present invention is accomplished via a heat dissipation structure for an illuminating system, i.e. the heat dissipation structure has a first heat dissipation assembly fixedly connected with an object from which heat to be dissipated, wherein the heat dissipation structure further has a second heat dissipation assembly clamping the first heat dissipation assembly on both sides, and wherein the sec ⁇ ond heat dissipation assembly has an axis portion for the first heat dissipation assembly to pivot thereon, and the second heat dissipation assembly transfers heat from the first heat dissipation assembly.
  • the heat dissipation struc- ture according to the present invention is usually applied in a high power LED illuminating system.
  • a high power LED illuminating system often has a very high demand to heat dissipation, and also may need to adjust a light output direction in some spe ⁇ cial applications.
  • an orientation of the object from which heat to be dissi ⁇ pated, i.e. LED lighting module, may be adjusted; and a good heat dissipation performance also can be provided.
  • the second heat dissipation assembly has first and second heat dissipation portions arranged on both sides of the first heat dissipation assembly, respectively, and each of the first and second heat dissipation portions has a trunnion configured as the axis portion.
  • the trunnion stretches into an accommodating groove provided on the first heat dissipa ⁇ tion assembly.
  • the second heat dissipation assembly may clamp the first heat dissipation assembly, that is to say, the second heat dissipation assembly clamps the first heat dissipation assembly on both sides using the first and second heat dissipation portions, heat from the first heat dissipa ⁇ tion assembly may be transferred to the second heat dissipa ⁇ tion assembly.
  • the first heat dissipation assembly also may rotate around an axis of the trunnion to further achieve the object of adjusting the orientation of the first heat dissipation assembly.
  • each of the first and second heat dissipation till is selected from the first and second heat dissipation till
  • first and second heat dissipation portions is equipped with a clamping force adjusting mecha ⁇ nism arranged on a side opposite to the trunnion.
  • An acting force may be applied to each of the first and second heat dissipation portions by such clamping force adjusting mecha- nism, so as to enable the first and second heat dissipation portions to be against the first heat dissipation assembly more tightly.
  • Such tight contact is favorable to heat conduc ⁇ tion from the first heat dissipation assembly to the first and second heat dissipation portions; moreover, such tight contact further increases a friction force between the first heat dissipation assembly and the first and second heat dis ⁇ sipation portions so that the first heat dissipation assem ⁇ bly, when it is adjusted to a predetermined orientation, is held on this orientation.
  • the clamping force adjusting mechanism consists of an adjusting nut, an adjusting bolt and a pres ⁇ sure spring sleeved on the adjusting bolt, wherein the ad ⁇ justing bolt has one end inserted into an axis hole on a side opposite to the trunnion and the other end connected with the adjusting nut via screw threads, and wherein the pressure spring has one end against the adjusting nut and the other end against a side opposite to the trunnion.
  • each of the first and second heat dissipation portions has a clamping seat for clamping, together with a clamping seat of the first or the second heat dissipation portion, the first heat dissipation assembly, wherein the trunnion is provided on the clamping seat.
  • a clamping surface of the clamping seat preferably has a big contact surface so as to obtain a relatively big heat conduction surface between the clamping seat and the first heat dissipation assembly, which is more favorable to heat conduction.
  • each of the first and second heat dissipation portions has a heat pipe extending from the clamping seat.
  • the heat pipe is a heat conduction element having very high heat conduction performance, transfers heat via evaporation and condensation of a working medium in a totally closed vac- uum tube, and has quite high heat conduction property and good isothermality . A prominent heat dissipation performance may be accomplished using the heat pipe.
  • the heat dissipation structure further has a third heat dissipation assembly for fixing the second heat dissipation assembly.
  • the third heat dissipation assembly is configured to transfer heat from the first and second heat dissipation assemblies to the outside environment .
  • the clamping force adjusting mechanism is fixed between the third heat dissipation assembly and the first and second heat dissipation portions of the second heat dissipa ⁇ tion assembly, respectively.
  • the adjusting nut of the clamping force adjusting mechanism is against the third heat dissipation as- sembly, so that the third heat dissipation assembly can pro ⁇ vide a supporting point when the adjusting nut is rotated, so as to enable the clamping force adjusting mechanism to apply an acting force on the second heat dissipation assembly.
  • each of the first and second heat dissi- pation portions has a base, the heat pipe is connected be ⁇ tween the base and the clamping seat, the base fixes the first and second heat dissipation portions on the third heat dissipation assembly. Due to the special structure of the heat pipe, it is difficult to fix the heat pipe on the third r
  • the base provided herein well solves the problem of mounting the heat pipe. Moreover, a contact surface between the base and the third heat dissipation assembly is configured to be as big as possible in order to obtain a good heat conduction effect as much as possible.
  • the base is provided with a long assembling hole through which a fastening bolt passes to fix the first and second heat dissipation portions in the third heat dissipa ⁇ tion assembly.
  • the long assembling hole allows the first and second heat dissipation portions to move close to or away from each other in a situation that the fastening bolt is loosened.
  • the first and second heat dissipation portions are placed roughly on both sides of the heat dissipation assembly and held loosely via the fastening bolt, then positions of the first and sec ⁇ ond heat dissipation portions may be further adjusted until they reach predetermined positions, and the fastening bolt is screwed down to further fix the first and second heat dissi ⁇ pation portions on the predetermined positions.
  • the base and the clamping seat are made of copper or aluminum, and, of course, also may be made of other materials having a high heat conduction performance.
  • the other object of the present invention is accomplished via an illuminating system.
  • the illuminating system has a lighting assembly, wherein the illuminating system according to the present invention further has the heat dissipation structure of the above type, and the lighting assembly is fixed on the first heat dissipation assembly of the heat dissipation structure.
  • a light output direction of the illuminating sys ⁇ tem according to the present invention may be adjusted at will, and the illuminating system further has excellent heat dissipation performance.
  • the illuminating system further has a top cover with a transparent glass.
  • the top cover is fixed on the third heat dissi ⁇ pation assembly.
  • the top cover is fixed on the third heat dissipation assembly of the heat dissipation structure so as to construct an external housing of the illu ⁇ minating system together with the third heat dissipation assembly, wherein a sealing element is provided between the top cover and the third heat dissipation assembly.
  • the sealing element is capable of providing a good sealing performance and prevents dust or water from entering in the housing, so that the illuminating system according to the present invention satisfies predetermined requirements of the IP protection level.
  • Fig. 1 is a schematic diagram of a heat dissipation structure according to the present invention
  • Fig. 2 is a schematic diagram of a clamping force adjusting mechanism of a heat dissipation structure according to the present invention
  • Fig. 3 is a local top view of a heat dissipation structure according to the present invention
  • Fig. 4 is an exploded perspective view of an illuminating system according to the present invention
  • Fig. 5 is a perspective view of an illuminating system according to the present invention.
  • Fig. 1 is a schematic diagram of a heat dissipation structure according to the present invention.
  • the heat dissipation structure is configured to be mounted in an illuminating sys ⁇ tem, especially in a high power LED illuminating system.
  • the heat dissipation struc ⁇ ture has a fist heat dissipation assembly 1 and a second heat dissipation assembly fixedly connected with an object from which heat to be dissipated.
  • the object from which heat to be dissipated is configured as a lighting assembly 16, particularly LED lighting assembly, of the illuminating system, while the first heat dissipation as- sembly 1 is configured as a heat sink.
  • the second heat dissipation assembly has first and second heat dissipation portions 3a, 3b arranged on both sides of the first heat dissipation assembly 1, respectively.
  • the first and second heat dissipation portions 3a, 3b clamp the first heat dissipation assembly 1 on both sides, wherein each of the first and second heat dissipation portions 3a, 3b has a trunnion 4 (see Fig. 2) for the first heat dissipation assembly 1 to pivot thereon and for transfering heat from the first heat dissipation assembly 1.
  • the trunnion 4 stretches into an accommodating groove 5 (see Fig. 4) provided on the first heat dissipation assembly 1.
  • each of the first and second heat dissipation portions 3a, 3b has a clamping seat 11 for clamping, together with a clamping seat 11 of the first heat dissipation portion 3a or the second heat dissipation portion 3b, the first heat dissipation assembly 1, wherein the trun ⁇ nion 4 is provided on the clamping seat 11.
  • each of the first and second heat dissipation portions 3a, 3b has a heat pipe 12 and a base 10 extending from the clamping seat 11. The heat pipe 12 is connected between the base 10 and the protagonist
  • each of the first and second heat dissipation portions 3a, 3b is equipped with a clamping force adjusting mechanism arranged on a side opposite to the trunnion 4 of corresponding first or second heat dissipation portion 3a, 3b.
  • the mechanism is shown in detail in Fig. 2.
  • the clamping force adjusting mecha- nism is explained according to Fig. 2.
  • the mechanism is provided on a side opposite to the trunnion 4.
  • the clamping force adjusting mechanism consists of an adjusting nut 6, an adjusting bolt 7 and a pressure spring 8 sleeved on the adjusting bolt 7, wherein the adjusting bolt 7 has one end inserted into an axis hole on a side opposite to the trunnion 4 and the other end connected with the adjusting nut 6 via screw threads.
  • the pressure spring 8 has one end against the adjusting nut 6 and the other end against a side opposite to the trunnion 4.
  • the adjusting nut 6 is against the third heat dissipation assembly 2 that is not shown so that the third heat dissipation assembly 2 can provide a supporting point when the adjusting nut 6 is ro ⁇ tated, and the adjusting bolt 7 will move towards directions of the first and second heat dissipation portions 3a, 3b, the pressure spring 8 is compressed so that the pressure of the pressure spring 8 is applied on the first and second heat dissipation portions 3a, 3b to enable the first and second heat dissipation portions 3a, 3b to be against the first heat dissipation assembly 1 more tightly.
  • Fig. 3 is a local top view of a heat dissipation structure according to the present invention.
  • the base 10 can be seen from the figure and it is provided with a long assembling hole 13 through which a fastening bolt 14 passes to fix the first and second heat dissipation portions 3a, 3b in the third heat dissipation assembly 2.
  • the long assembling hole 13 allows the first and second heat dissipation portions 3a, 3b to move close to or away from each other in a situation that the fastening bolt 14 is loosened.
  • the first and second heat dissipation portions 3a, 3b are placed roughly on both sides of the heat dissipation assembly 1 and held loosely via the fastening bolt 14, then positions of the first and second heat dissipa- tion portions 3a, 3b may be further adjusted until they reach predetermined positions, and the fastening bolt 14 is screwed down to further fix the first and second heat dissipation portions 3a, 3b on the predetermined positions.
  • the base 10 and the clamping seat 11 are made of copper or aluminum, and, of course, also may be made of other materials having high heat conduction performance .
  • Fig. 4 is an exploded perspective view of an illuminating system according to the present invention. It can be seen from the figure that the illuminating system according to the present invention has a lighting assembly 16 configured as LED assembly and a heat dissipation structure according to the present invention, wherein the lighting assembly 16 is fixed on the first heat dissipation assembly 1, i.e. heat sink, of the heat dissipation structure.
  • the second heat dis ⁇ sipation assembly of the heat dissipation structure is fixed in the third heat dissipation assembly 2 configured as a housing of the illuminating system.
  • the illuminating system further has a top cover 15 with a transparent glass 18.
  • the top cover 15 is fixed on the third heat dissi ⁇ pation assembly 2 of the heat dissipation structure so as to construct an external housing of the illuminating system together with the third heat dissipation assembly 2.
  • a sealing element 17 is provided between the top cover 15 and the third heat dissipation assembly 2.
  • the sealing element 17 is capable of providing good sealing performance and prevents dust or water from entering in the housing, so that the illuminating system according to the present invention satisfies requirements of the IP protection level.
  • Fig. 5 is a schematic diagram of an assembled illuminating system according to the present invention.
  • the positional re ⁇ lationship between the heat dissipation structure and components of the illuminating system according to the present invention can be seen from the figure.

Landscapes

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

Abstract

La présente invention concerne une structure de dissipation de chaleur pour un système d'éclairage présentant un premier ensemble de dissipation de chaleur (1) raccordé de manière fixe à un objet depuis lequel la chaleur doit être dissipée, la structure de dissipation de chaleur présentant en outre un second ensemble de dissipation de chaleur fixant le premier ensemble de dissipation de chaleur (1) des deux côtés et le second ensemble de dissipation de chaleur présentant une partie axe sur laquelle le premier ensemble de dissipation de chaleur (1) peut pivoter et le second ensemble de dissipation de chaleur transférant la chaleur depuis le premier ensemble de dissipation de chaleur (1). Grâce à la structure de dissipation de chaleur selon la présente invention, selon un aspect, une orientation de l'objet depuis lequel la chaleur doit être dissipée est ajustée et de bonnes performances de dissipation de chaleur peuvent également être obtenues. De plus, la présente invention concerne en outre un système d'éclairage présentant la structure de dissipation de chaleur du type ci-dessus.
PCT/EP2012/058817 2011-06-17 2012-05-11 Structure de dissipation de chaleur et système d'éclairage présentant la structure WO2012171734A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN2011101648592A CN102829457A (zh) 2011-06-17 2011-06-17 散热结构以及具有该结构的照明系统
CN201110164859.2 2011-06-17

Publications (1)

Publication Number Publication Date
WO2012171734A1 true WO2012171734A1 (fr) 2012-12-20

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Application Number Title Priority Date Filing Date
PCT/EP2012/058817 WO2012171734A1 (fr) 2011-06-17 2012-05-11 Structure de dissipation de chaleur et système d'éclairage présentant la structure

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CN (1) CN102829457A (fr)
WO (1) WO2012171734A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016080989A1 (fr) * 2014-11-20 2016-05-26 Robe Lighting, Inc. Réglage de la chaleur et de la position pour un luminaire fermé
CN106642034A (zh) * 2017-01-12 2017-05-10 赛尔富电子有限公司 一种轨道灯具的散热系统
EP4202296A1 (fr) * 2021-12-22 2023-06-28 Richter Lighting Technologies GmbH Dispositif de refroidissement pour une source de chaleur et agencement de source de chaleur

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107664298A (zh) * 2017-10-12 2018-02-06 广州市升龙灯光设备有限公司 一种热交换装置
CN110703541B (zh) * 2019-09-20 2021-07-20 浙江华睿科技有限公司 散热机构以及工业相机

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5329436A (en) * 1993-10-04 1994-07-12 David Chiu Removable heat sink for xenon arc lamp packages
EP1357335A2 (fr) * 2002-04-23 2003-10-29 Nichia Corporation Dispositif d'éclairage
WO2006052022A1 (fr) * 2004-11-12 2006-05-18 Showa Denko K.K. Installation d’eclairage et dispositif d’eclairage automobile
WO2010009665A1 (fr) * 2008-07-22 2010-01-28 Wu Liangju Lampe à angle d'ampoule réglable

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5329436A (en) * 1993-10-04 1994-07-12 David Chiu Removable heat sink for xenon arc lamp packages
EP1357335A2 (fr) * 2002-04-23 2003-10-29 Nichia Corporation Dispositif d'éclairage
WO2006052022A1 (fr) * 2004-11-12 2006-05-18 Showa Denko K.K. Installation d’eclairage et dispositif d’eclairage automobile
WO2010009665A1 (fr) * 2008-07-22 2010-01-28 Wu Liangju Lampe à angle d'ampoule réglable

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016080989A1 (fr) * 2014-11-20 2016-05-26 Robe Lighting, Inc. Réglage de la chaleur et de la position pour un luminaire fermé
CN106642034A (zh) * 2017-01-12 2017-05-10 赛尔富电子有限公司 一种轨道灯具的散热系统
CN106642034B (zh) * 2017-01-12 2023-10-03 赛尔富电子有限公司 一种轨道灯具的散热系统
EP4202296A1 (fr) * 2021-12-22 2023-06-28 Richter Lighting Technologies GmbH Dispositif de refroidissement pour une source de chaleur et agencement de source de chaleur

Also Published As

Publication number Publication date
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