EP2933549B1 - Lichtmodul mit Fähigkeit zur Einstellung der Beleuchtungswinkels und zur Verwendung von Phasenwechsel-Wärmeableitung - Google Patents

Lichtmodul mit Fähigkeit zur Einstellung der Beleuchtungswinkels und zur Verwendung von Phasenwechsel-Wärmeableitung Download PDF

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Publication number
EP2933549B1
EP2933549B1 EP14173106.7A EP14173106A EP2933549B1 EP 2933549 B1 EP2933549 B1 EP 2933549B1 EP 14173106 A EP14173106 A EP 14173106A EP 2933549 B1 EP2933549 B1 EP 2933549B1
Authority
EP
European Patent Office
Prior art keywords
chamber
light module
main body
lighting component
component
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
EP14173106.7A
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English (en)
French (fr)
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EP2933549A1 (de
Inventor
Hai Lan
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.)
ARC Solid-State Lighting Corp
Arc Solid State Lighting Corp
Original Assignee
ARC Solid-State Lighting Corp
Arc Solid State Lighting Corp
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Publication date
Application filed by ARC Solid-State Lighting Corp, Arc Solid State Lighting Corp filed Critical ARC Solid-State Lighting Corp
Publication of EP2933549A1 publication Critical patent/EP2933549A1/de
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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
    • F21V29/70—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
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • 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
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/56—Cooling arrangements using liquid coolants
    • F21V29/58—Cooling arrangements using liquid coolants characterised by the coolants
    • 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
    • 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

Definitions

  • the disclosure relates to a light module utilizing phase-change thermal dissipation, more particularly to a light module being capable of adjusting angle of illumination and utilizing phase-change thermal dissipation.
  • LEDs Although having not replaced all of the traditional incandescent lamps, light-emitting diodes (LEDs) have become popular lighting devices. Compared with the traditional incandescent lamps, the LEDs have advantages of being environmentally friendly and energy saving. In addition, LEDs have longer lifespan than the incandescent lamps. A plurality of LEDs assembled together can be a light source with high power and high brightness, thereby being capable of replacing indoor and outdoor incandescent lamps. Since LEDs are eco-friendly, they are expected to be the future of the lighting industry.
  • the LED comprises fins for heat dissipation.
  • the fins require a great deal of space for disposition, which affects the space allocation of components of the LED.
  • an illuminating region of a LED lamp is fixed so that users have to dispose additional lamps when the illuminating region needs to be changed, thereby increasing a cost for disposing the lamps. Therefore, it is crucial to design a heat dissipation system for the LED for improving flexibility of the illuminating region.
  • thermosyphon light engine and luminaire which includes a condenser, an evaporation chamber and a connecting element therebetween.
  • the condenser returns a gaseous substance located therein to a liquid substance.
  • the evaporation chamber includes a solid state light source, a working liquid and an optical element that shapes light emitted by the at least one solid state light source.
  • the solid state light source is immersed in the working liquid such that heat generated by the solid state light source changes the working light into a gaseous substance.
  • the gaseous substance travels through the connecting element to the condenser, which returns the gaseous substance to a liquid substance.
  • the liquid substance then travels through the connecting element back to the evaporation chamber.
  • TW M 468 784 U discloses a lighting component and a heat dissipating component with a first and a second chamber.
  • the heat dissipation process is not very flexible and can be improved.
  • the disclosure is a light module for solving the unsatisfactory heat dissipation performance and the non-adjustable angle illumination.
  • a light module being capable of adjusting angle of illumination and utilizing phase-change thermal dissipation comprises a lighting component and a heat dissipating component with one side being in thermal contact with the lighting component.
  • the heat dissipating component has a first chamber, a second chamber and two flexible channels flexibly connecting the first chamber and the second chamber. The distance from the second chamber to the lighting component is greater than that from the first chamber to the lighting component, and a working fluid is filled in the first chamber.
  • the working liquid absorbs heat generated from the lighting component, the working liquid vaporizes from a liquid state to a gaseous state and flows into the second chamber via one of the two flexible channels for heat dissipation. After the working liquid in the second chamber condenses from a gaseous state to a liquid state, it flows back to the first chamber via the other one of the flexible channels.
  • a cyclic close-loop is formed by the arrangement of the two flexible channels, the first chamber and the second chamber, and a convection induced by a phase-change of the working liquid conducts heat in the cyclic close-loop.
  • This structure design may omit the active heat dissipating component and can significantly improve the heat dissipation effect.
  • the first chamber connected to the lighting component is able to be moved to change a relative position of the lighting component and the second chamber by bending the two flexible channels. Therefore, users can manually change an illuminating area of the lighting component to improve the practicability of the light module.
  • FIG. 1 is a perspective view of a light module being capable of adjusting angle of illumination and utilizing phase-change thermal dissipation according to a first embodiment of the disclosure.
  • the light module 10 comprises a lighting component 12 and a heat dissipating component 14. One side of the heat dissipating component 14 is in thermal contact with the lighting component 12.
  • the lighting component 12 is a solid-state light-emitting element. In this embodiment, the lighting component 12 is a light-emitting diode, but the disclosure is not limited thereto.
  • FIG. 2 is a sectional view of the light module in FIG. 1 when a first main body is located at a first position.
  • the heat dissipating component 14 has a first main body 141, a second main body 142, a first chamber 145, a second chamber 146, two flexible channels 148, a fin group 149 and a working liquid 19.
  • the first main body 141 is in thermal contact with the lighting component 12.
  • the first chamber 145 is located in the first main body 141, while the second chamber 146 is located in the second main body 142.
  • the two flexible channels 148 are located between the first chamber 145 of the first main body 141 and the second chamber 146 of the second main body 142 and flexibly connect them.
  • the fin group 149 is disposed on the second main body 142.
  • the fin group 149 extends outward from the second main body 142.
  • the second main body 142 has a bottom surface 1425.
  • the bottom surface 1425 is located between the second chamber 146 and the first main body 141, meanwhile facing the first main body 141.
  • the first chamber 145 is able to be moved to a position relative to the second chamber 146 by bending the flexible channel 148.
  • the number of the flexible channels 148 is two, but the disclosure is not limited thereto. In other embodiments, the number of the flexible channels 148 can be adjusted if it is needed.
  • the distance from the second chamber 146 to the lighting component 12 is greater than that from the first chamber 145 to the lighting component 12, and a working fluid 19 is filled in the first chamber 145.
  • the working liquid 19 is water, but the disclosure is not limited thereto.
  • the working liquid 19 may be refrigerant, methanol, ethanol, diethyl ether or any other liquid substance which is favorable for heat conduction.
  • a cross-sectional area A1 of each of the two flexible channels 148 is much smaller than a cross-sectional area A2 of the second chamber 146.
  • the two flexible channels 148 comprise a plurality of rings 1481 connected together in series, respectively. Therefore, the flexible channel 148 is capable of bending and preventing the working liquid 19 from leaking out from the rings 1481.
  • the flexible channel 148 is a flexible bellow or a flexible metal channel.
  • the lighting component 12 has a light-emitting surface 125.
  • an angle ⁇ 1 between a normal vector N1 of the light-emitting surface 125 and an absolutely vertical direction V is 45 degrees.
  • a user can manually move the first main body 141 to bend the flexible channel 148, thereby changing a relative position of the first chamber 145 and the second chamber 146 to adjust the corresponding position of the light-emitting surface 125.
  • FIG. 3 is a sectional view of the light module in FIG. 1 when the first main body is located at a second position.
  • FIG. 4 is a sectional view of the light module in FIG.
  • a normal vector N2 of the light-emitting surface 125 is parallel to the absolutely vertical direction V, but the disclosure is not limited thereto.
  • an angle ⁇ 2 between the normal vector N2 of the light-emitting surface 125 and the absolutely vertical direction V is 90 degrees, but the disclosure is not limited thereto. That is, the angle between the normal vector N2 of the light-emitting surface 125 and the absolutely vertical direction V is able to be optionally adjusted at a range from 0 to 90 degrees. Therefore, the light module 10 is able to illuminate downward directly and does not influence the thermal dissipation.
  • the absolutely vertical direction V thereof is the same as the gravitational direction.
  • the lighting component 12 can be highly efficient so that the light module 10 is able to be applied to a spotlight.
  • the heat dissipation process of the heat dissipating component 14 dissipating the heat generated by the lighting component 12 will be illustrated.
  • the lighting component 12 when the lighting component 12 generates heat, it is transferred to the first chamber 145 in the first main body 141.
  • the working liquid 19 in the first chamber 145 absorbs the heat generated by the lighting component 12, it vaporizes, from the liquid state, into the working gas 19'.
  • the working gas 19' rises and flows into the second chamber 146 of the second main body 142 along a first direction D1 (as shown in FIG. 2 ).
  • the fin group 149 since the fin group 149 is disposed on the second main body 142, the heat of the working gas 19' can be dissipated via the fin group 149.
  • the heat of the working gas 19' can be directly dissipated to the external environment by the second main body 142. Since the heat is dissipated after the working gas 19' enters the second chamber 146, the working gas 19' gradually condenses into the working liquid 19. Subsequently, the working liquid 19 flows back to the first chamber via the other flexible channel 148 along a second direction D2. Furthermore, in other embodiments, since the cross-sectional area A1 of the flexible channel 148 is much smaller than the cross-sectional area A2 of the second chamber 146, a great pressure difference exists between them. Therefore, the working liquid 19' flows into the second chamber 146' as a high-speed airflow R1 along the first direction D1, which accelerates the heat conduction and the convection.
  • the working liquid 19 vaporizes into the working gas 19' for accelerating the heat conduction, and the working gas 19' flows into the second chamber 146 via one of the two flexible channels 148 for heat dissipation. After the working gas 19' condenses into the working liquid 19, it flows back to the first chamber 145 via the other flexible channel 148. In this way, a cyclic close-loop is created and it can contribute to a better cooling effect due to the convection. Moreover, in this way, an active heat dissipating component is not necessary to be disposed in the light module 10. By the arrangement of the two flexible channels 148, the light module 10 can perform remote heat dissipation.
  • the working liquid 19' flows into the second chamber 146' as a high-speed airflow R1 along the first direction D1, which accelerates the heat conduction and the convection.
  • the cyclic close-loop is formed by the arrangement of the two flexible channels, and the convection of the working liquid as well as the working gas accelerates the heat conduction.
  • This structure design may omit the active heat dissipating component and can significantly improve the heat dissipation effect.
  • the first chamber connected to the lighting component is able to be moved to change the relative position of the lighting component and the second chamber via bending the two flexible channels. Therefore, users can manually change the illuminating region to improve the practicability of the light module.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)

Claims (7)

  1. Lichtmodul (10), das ausgebildet ist, einen Abstrahlwinkel zu verändern und thermische Phasenwechseldissipation verwendet, umfassend eine Beleuchtungskomponente (12) und eine Wärmeableitungskomponente (14), die mit einer Seite in thermischem Kontakt mit der Beleuchtungskomponente (12) ist, wobei die Wärmeableitungskomponente (14) eine erste Kammer (145) und eine zweite Kammer (146) umfasst, wobei der Abstand von der zweiten Kammer (146) zu der Beleuchtungskomponente (12) größer ist als der von der ersten Kammer (145) zu der Beleuchtungskomponente (12) und eine Arbeitsflüssigkeit (19) in die erste Kammer (145) gefüllt ist; das Lichtmodul (10) ist dadurch gekennzeichnet, dass die Wärmeableitungskomponente (14) ferner zwei flexible Kanäle (148), die flexibel die erste Kammer (145) und die zweite Kammer (146) verbinden, umfasst; jeder der zwei flexiblen Kanäle (148) eine Mehrzahl von Ringen (1481) umfasst, die jeweils in Reihe miteinander verbunden sind; die Beleuchtungskomponente (12) weist eine lichtemittierende Oberfläche (125) und die zwei flexiblen Kanäle (148), die zur Veränderung eines Winkels zwischen einem Normalvektor der lichtemittierenden Oberfläche (125) und einer absolut vertikalen Richtung in einem Bereich von 0 bis 90 Grad biegbar sind, auf;
    wobei, wenn die Arbeitsflüssigkeit (19) von der Beleuchtungskomponente (12) generierte Wärme absorbiert, die Arbeitsflüssigkeit (19) von einem flüssigen Zustand in einen gasförmigen Zustand verdampft und durch einen der flexiblen Kanäle (148) für die Wärmeableitung in die zweite Kammer (146) fließt, und nachdem die Arbeitsflüssigkeit (19) in der zweiten Kammer (146) vom gasförmigen Zustand in den flüssigen Zustand kondensiert, fließt diese durch den anderen der flexiblen Kanäle (148) in die erste Kammer (145) zurück.
  2. Lichtmodul (10) nach Anspruch 1, wobei ein Querschnittsbereich von jedem der zwei flexiblen Kanäle (148) kleiner ist als der der zweiten Kammer (146), sodass die Arbeitsflüssigkeit (19) mit hoher Geschwindigkeit durch den einen der zwei Kanäle (148) in die zweite Kammer (146) fließt.
  3. Lichtmodul (10) nach Anspruch 1, wobei die Wärmeableitungskomponente (14) ferner einen ersten Hauptkörper (141), einen zweiten Hauptkörper (142) und eine Lamellengruppe (149) umfasst, eine Seite des ersten Hauptkörpers (141) in thermischem Kontakt mit der Beleuchtungskomponente (12) ist, die erste Kammer (145) in dem ersten Hauptkörper (141) angeordnet ist, die zweite Kammer (146) in dem zweiten Hauptkörper (142) angeordnet ist, und die Lamellengruppe (149) auf dem zweiten Hauptkörper (142) angeordnet ist.
  4. Lichtmodul (10) nach Anspruch 3, wobei die Lamellengruppe (149) sich von dem zweiten Hauptkörper (142) auswärts erstreckt.
  5. Lichtmodul (10) nach Anspruch 1, wobei die Arbeitsflüssigkeit (19) Wasser, Methanol, Ethanol oder Diethylether ist.
  6. Lichtmodul (10) nach Anspruch 1, wobei die Beleuchtungskomponente (12) eine Festkörperbeleuchtungskomponente ist.
  7. Lichtmodul (10) nach Anspruch 1, wobei die Beleuchtungskomponente (12) eine lichtemittierende Diode ist.
EP14173106.7A 2014-04-16 2014-06-19 Lichtmodul mit Fähigkeit zur Einstellung der Beleuchtungswinkels und zur Verwendung von Phasenwechsel-Wärmeableitung Not-in-force EP2933549B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW103206616U TWM484672U (zh) 2014-04-16 2014-04-16 可變化角度之相變化光源模組

Publications (2)

Publication Number Publication Date
EP2933549A1 EP2933549A1 (de) 2015-10-21
EP2933549B1 true EP2933549B1 (de) 2016-10-26

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EP14173106.7A Not-in-force EP2933549B1 (de) 2014-04-16 2014-06-19 Lichtmodul mit Fähigkeit zur Einstellung der Beleuchtungswinkels und zur Verwendung von Phasenwechsel-Wärmeableitung

Country Status (6)

Country Link
EP (1) EP2933549B1 (de)
CN (1) CN203823514U (de)
DE (1) DE202015100296U1 (de)
ES (1) ES2609627T3 (de)
PT (1) PT2933549T (de)
TW (1) TWM484672U (de)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI582342B (zh) * 2015-06-05 2017-05-11 錦鑫光電股份有限公司 相變化散熱裝置及燈具
CN106481997A (zh) * 2016-12-14 2017-03-08 中国人民大学 相变导热与风扇散热相结合的超高功率密度led器件
CN107514595A (zh) * 2017-09-15 2017-12-26 上海小糸车灯有限公司 车辆用灯具
DE102018101988A1 (de) 2018-01-30 2019-08-01 HELLA GmbH & Co. KGaA Scheinwerfer für ein Fahrzeug mit einer Kühleinrichtung für ein Halbleiterleuchtmittel
CN214592558U (zh) * 2021-02-17 2021-11-02 建准电机工业股份有限公司 整合式冷却模块及具有该整合式冷却模块的电子装置

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8529105B2 (en) * 2008-07-10 2013-09-10 Koninklijke Philips N.V. Remote cooling by combining heat pipe and resonator for synthetic jet cooling
WO2011140157A1 (en) * 2010-05-03 2011-11-10 Osram Sylvania Inc. Thermosyphon light engine and luminaire including same
TWM468784U (zh) * 2013-08-16 2013-12-21 Arc Solid State Lighting Corp 光源模組及應用此光源模組的發光組件

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ES2609627T3 (es) 2017-04-21
CN203823514U (zh) 2014-09-10
TWM484672U (zh) 2014-08-21
EP2933549A1 (de) 2015-10-21
PT2933549T (pt) 2017-01-24
DE202015100296U1 (de) 2015-05-06

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