EP1528315A2 - Beleuchtungseinrichtung mit Vorrichtung zur Wärmeableitung - Google Patents

Beleuchtungseinrichtung mit Vorrichtung zur Wärmeableitung Download PDF

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Publication number
EP1528315A2
EP1528315A2 EP05000381A EP05000381A EP1528315A2 EP 1528315 A2 EP1528315 A2 EP 1528315A2 EP 05000381 A EP05000381 A EP 05000381A EP 05000381 A EP05000381 A EP 05000381A EP 1528315 A2 EP1528315 A2 EP 1528315A2
Authority
EP
European Patent Office
Prior art keywords
light
thermoconductor
casing
light source
light set
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP05000381A
Other languages
English (en)
French (fr)
Other versions
EP1528315B1 (de
EP1528315A3 (de
Inventor
Jeffrey Chen
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.)
NeoBulb Technologies Inc
Original Assignee
NeoBulb Technologies Inc
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 NeoBulb Technologies Inc filed Critical NeoBulb Technologies Inc
Priority to EP05000381A priority Critical patent/EP1528315B1/de
Priority to AT05000381T priority patent/ATE438828T1/de
Priority to ES05000381T priority patent/ES2331077T3/es
Priority to DE602005015778T priority patent/DE602005015778D1/de
Publication of EP1528315A2 publication Critical patent/EP1528315A2/de
Publication of EP1528315A3 publication Critical patent/EP1528315A3/de
Application granted granted Critical
Publication of EP1528315B1 publication Critical patent/EP1528315B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21L—LIGHTING DEVICES OR SYSTEMS THEREOF, BEING PORTABLE OR SPECIALLY ADAPTED FOR TRANSPORTATION
    • F21L4/00—Electric lighting devices with self-contained electric batteries or cells
    • F21L4/02—Electric lighting devices with self-contained electric batteries or cells characterised by the provision of two or more light sources
    • F21L4/022—Pocket lamps
    • F21L4/027—Pocket lamps the light sources being a LED
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S9/00—Lighting devices with a built-in power supply; Systems employing lighting devices with a built-in power supply
    • F21S9/02—Lighting devices with a built-in power supply; Systems employing lighting devices with a built-in power supply the power supply being a battery or accumulator
    • 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
    • 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
    • F21V29/502—Cooling arrangements characterised by the adaptation for cooling of specific components
    • F21V29/507—Cooling arrangements characterised by the adaptation for cooling of specific components of means for protecting lighting devices from damage, e.g. housings
    • 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
    • F21V29/60—Cooling arrangements characterised by the use of a forced flow of gas, e.g. air
    • F21V29/67—Cooling arrangements characterised by the use of a forced flow of gas, e.g. air characterised by the arrangement of fans
    • 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
    • F21V29/50—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
    • F21V29/74—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
    • F21V29/77—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical diverging planar fins or blades, e.g. with fan-like or star-like cross-section
    • F21V29/773—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical diverging planar fins or blades, e.g. with fan-like or star-like cross-section the planes containing the fins or blades having the direction of the light emitting axis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • 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
    • 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
    • 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 set and more particularly, to a light set with heat dissipation means that has a heat dissipation module mounted inside the casing to dissipate heat during the operation of the light source thereof.
  • FIG. 1 illustrates a conventional LED type light set.
  • the light set comprises a solid metal plate, for example, aluminum plate 10 , a LED (light emitting diode) or LEDs 12 mounted on the aluminum plate 10 , and a circuit 14 provided around the border area of the aluminum plate 10 for controlling the operation of the LED(s) 12 .
  • the aluminum plate 10 is adapted to dissipate heat from the LED(s) 12 .
  • the low heat dissipation working efficiency of the aluminum plate 10 is insufficient to carry heat away from the LED(s) 12 .
  • FIG. 2 shows a pipe shape Vapor Chamber according to the prior art.
  • the Vapor Chamber 2 comprises a hollow body 20 that is kept in a vacuum status, a capillary structure 22 formed inside the hollow body 20 , and a working fluid (not shown) filled in the hollow body 20 .
  • the heat source power-consuming chip, CPU, or LCD
  • the working fluid in the hollow body 20 is heated into steam by heat energy from the heat source 26 .
  • Produced steam passes (transport) from the hot side of the hollow body 20 to the other side, namely, the cold side where steam is condensed into fluid, which is then guided back to the hot side of the hollow body 20 by the capillary structure 22 .
  • the thermal could be quickly carried away from the heat source.
  • thermoconductor With a light source to carry heat from the light source during its operation, so that the working efficiency of the light source can be greatly improved.
  • the present invention has been accomplished under the circumstances in view. It is one object of the present invention to provide a light set, which is equipped with radiation fins to dissipate heat efficient during the operation of the light source thereof, so as to improve the working efficiency of the light source and prolongs its service life. It is another object of the present invention to provide a light set, which has air vents formed in the casing thereof for quick dissipation of heat during the operation of the light source thereof.
  • the light set comprises a casing that admits light; a thermoconductor mounted inside the casing, the thermoconductor having a flat end portion; at least one radiation fin fastened to the periphery of the thermoconductor inside the casing; a light source installed in the flat end portion of the thermoconductor; and a power unit mounted inside the casing and electrically connected to the light source to provide the light source with the necessary working voltage.
  • a light set 3 comprising a casing 30 that admits light, a thermoconductor 32 that can be a heat pipe or heat column mounted inside the casing 30 and has one end, namely, the top end thereof flatted, a plurality of radiation fins 324 arranged around the periphery of the thermoconductor 32 for dissipation of heat from the thermoconductor 32 to the outside space, a light source 34 mounted on the flat top end of the thermoconductor 32 for producing light through the casing 30 , a circuit board 36 mounted inside the casing 30 and provided at the other end, namely, the bottom end of the thermoconductor 32 , and power unit that can be a battery set or AC adapter 37 mounted inside the casing 30 and electrically connected to the circuit board 36 and the light source 34 to provide the necessary working voltage to the light source 34 through the circuit board 36 .
  • the thermoconductor 32 comprises a hollow body 320 formed of copper and kept in a vacuum status, a capillary structure (not shown) formed inside the hollow body 320 , and a working fluid (not shown) filled in the hollow body 320 .
  • the hollow body 320 of the thermoconductor 32 has a cold side and a hot side.
  • the working fluid is distributed in the capillary structure of the hollow body 320 of the thermoconductor 32 .
  • the working fluid in the hot side is evaporated into steam and travel toward the cold side of the hollow body 320 of thermoconductor 32 by thermal adsorbed from the light source 34 , and the steam is then condensed into fluid status by the cold side of the hollow body 320 of thermoconductor 32 and guided back to the hot side of the hollow body 320 of thermoconductor 32 by the capillary structure.
  • the aforesaid radiation fins 324 are provided at the cold side of the hollow body 320 of thermoconductor 32 for transferring heat energy from the cold side of the of the hollow body 320 of thermoconductor 32 to the outside space during changing of the work fluid between steam status and fluid status.
  • the light source 34 comprises a substrate 340 , an array of light emitting devices, for example, LEDs (light emitting diodes) 342 arranged on the substrate 340 , a positive electrode 344 and a negative electrode 346 mounted in the substrate 340 and respectively electrically connected to the positive and negative terminals of each of the LEDs 342 .
  • the substrate 340 is preferably a silicon base material.
  • the LEDs 342 of the light source 34 can be directly arranged on the flat top end of the hollow body 320 of thermoconductor 32 (see FIG. 7).
  • the LEDs 342 can be installed in the substrate 340 (see FIG. 6) or the flat top end of the hollow body 320 of thermoconductor 32 (see FIG. 7) by wire bonding or flip chip.
  • the aforesaid radiation fins 324 may be variously embodied. According to the embodiment shown in FIG. 8, the radiation fins 324 have an annular shape and are arranged around the periphery of the hollow body 320 of thermoconductor 32 . According to the embodiment shown in FIG. 9, the radiation fins 324 are shaped like a fourfold petal and arranged around the periphery of the hollow body 320 of the thermoconductor 32 inside the casing 30 (see also FIG. 3). According to the embodiment shown in FIG. 10, the radiation fins 324 are flat fins radially arranged around the periphery of the hollow body 320 of the thermoconductor 32 inside the casing 30 (see also FIG. 3). The radiation fins 324 can be made of copper or aluminum.
  • the radiation fins 324 each have two through holes 326 symmetrically disposed at two sides through which the positive and negative electrodes of the light source 34 connect to the circuit board 36 .
  • the casing 30 has a plurality of air vents 302 corresponding to the radiation fins 324 for ventilation so that heat energy can quickly be transfered by air to the outside of the light set.
  • a fan 38 is provided below the circuit board 36 for causing currents of air to carry heat energy out of the light set.
  • the fan 38 and light source 34 obtains the necessary working voltage (or current) from the power unit 37 .
  • the circuit board 36 can design a temperature detection and fan control circuit (not shown) that detects the ambient temperature around the light source and controls ON/OFF status of the fan 38 subject to the detection result, i.e., the temperature detection and fan control circuit turns on the fan 38 when the ambient temperature surpassed a predetermined value, or turns off the fan 38 when the ambient temperature dropped below the predetermined value.
  • the present invention provides a light set with heat dissipation means, which has a thermoconductor with radiation fins and a fan mounted inside the casing thereof for quick dissipation of heat from the light source, thereby improving the working efficiency of the light source and prolonging its service life.
  • a prototype of light set with heat dissipation means has been constructed with the features of FIGS. 3 ⁇ 13.
  • the light set with heat dissipation means functions smoothly to provide all of the features discussed earlier.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Led Device Packages (AREA)
EP05000381A 2005-01-11 2005-01-11 Beleuchtungseinrichtung mit Vorrichtung zur Wärmeableitung Expired - Lifetime EP1528315B1 (de)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP05000381A EP1528315B1 (de) 2005-01-11 2005-01-11 Beleuchtungseinrichtung mit Vorrichtung zur Wärmeableitung
AT05000381T ATE438828T1 (de) 2005-01-11 2005-01-11 Beleuchtungseinrichtung mit vorrichtung zur wärmeableitung
ES05000381T ES2331077T3 (es) 2005-01-11 2005-01-11 Dispositivo de iluminacion con medios de disipacion del calor.
DE602005015778T DE602005015778D1 (de) 2005-01-11 2005-01-11 Beleuchtungseinrichtung mit Vorrichtung zur Wärmeableitung

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP05000381A EP1528315B1 (de) 2005-01-11 2005-01-11 Beleuchtungseinrichtung mit Vorrichtung zur Wärmeableitung

Publications (3)

Publication Number Publication Date
EP1528315A2 true EP1528315A2 (de) 2005-05-04
EP1528315A3 EP1528315A3 (de) 2005-07-06
EP1528315B1 EP1528315B1 (de) 2009-08-05

Family

ID=34400650

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05000381A Expired - Lifetime EP1528315B1 (de) 2005-01-11 2005-01-11 Beleuchtungseinrichtung mit Vorrichtung zur Wärmeableitung

Country Status (4)

Country Link
EP (1) EP1528315B1 (de)
AT (1) ATE438828T1 (de)
DE (1) DE602005015778D1 (de)
ES (1) ES2331077T3 (de)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006119582A1 (en) * 2005-05-13 2006-11-16 Tama Berkeljon Lighting apparatus
EP1783421A1 (de) * 2005-10-26 2007-05-09 Spectral Gesellschaft für Lichttechnik mit beschränkter Haftung Leuchte
WO2007028397A3 (en) * 2005-09-09 2007-05-31 Wiseled Aps A torch
WO2007056541A3 (en) * 2005-11-08 2007-10-25 Garrett J Young Apparatus and method for generating light from multi - primary colors
WO2009039907A1 (de) 2007-09-24 2009-04-02 Ledon Lighting Gmbh Kühlkörper und kühlsystem für ein led-modul
WO2010100289A1 (es) * 2009-03-06 2010-09-10 Kokoh Investigación, S.L. Dispositivo de iluminación
EP1933085A4 (de) * 2005-05-25 2011-01-19 Neobulb Technologies Inc Led-clusterlampe
WO2011079387A1 (en) * 2009-12-30 2011-07-07 Lumenpulse Lighting Inc. High powered light emitting diode lighting unit
WO2012168845A1 (en) * 2011-06-06 2012-12-13 Koninklijke Philips Electronics N.V. Remote heat sink
EP2538133A1 (de) * 2011-06-23 2012-12-26 Koninklijke Philips Electronics N.V. Entfernter Kühlkörper

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009044388A1 (de) 2009-11-02 2011-05-05 Semperlux Aktiengesellschaft - Lichttechnische Werke - Außenleuchte und Hochdrucklampenersatz

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7083305B2 (en) * 2001-12-10 2006-08-01 Galli Robert D LED lighting assembly with improved heat management
US7258464B2 (en) * 2002-12-18 2007-08-21 General Electric Company Integral ballast lamp thermal management method and apparatus
US6910794B2 (en) * 2003-04-25 2005-06-28 Guide Corporation Automotive lighting assembly cooling system
WO2004100220A2 (en) * 2003-05-05 2004-11-18 Optolum, Inc Light emitting diode light source

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006119582A1 (en) * 2005-05-13 2006-11-16 Tama Berkeljon Lighting apparatus
EP1933085A4 (de) * 2005-05-25 2011-01-19 Neobulb Technologies Inc Led-clusterlampe
EP2410234A3 (de) * 2005-09-09 2013-02-13 Wise Innovations Technology Sarl Taschenlampe
WO2007028397A3 (en) * 2005-09-09 2007-05-31 Wiseled Aps A torch
US7938556B2 (en) 2005-09-09 2011-05-10 Wiseled Aps Torch
CN101300450B (zh) * 2005-09-09 2011-08-10 威斯莱兹公司 手电筒
EP1783421A1 (de) * 2005-10-26 2007-05-09 Spectral Gesellschaft für Lichttechnik mit beschränkter Haftung Leuchte
WO2007056541A3 (en) * 2005-11-08 2007-10-25 Garrett J Young Apparatus and method for generating light from multi - primary colors
US10008178B2 (en) 2005-11-08 2018-06-26 Prism Projection, Inc Apparatus, methods, and systems for multi-primary display or projection
US7859554B2 (en) 2005-11-08 2010-12-28 Young Garrett J Apparatus, methods, and systems for multi-primary display or projection
US8624941B2 (en) 2005-11-08 2014-01-07 Prism Projection, Inc. Apparatus, methods, and systems for multi-primary display or projection
WO2009039907A1 (de) 2007-09-24 2009-04-02 Ledon Lighting Gmbh Kühlkörper und kühlsystem für ein led-modul
WO2010100289A1 (es) * 2009-03-06 2010-09-10 Kokoh Investigación, S.L. Dispositivo de iluminación
WO2011079387A1 (en) * 2009-12-30 2011-07-07 Lumenpulse Lighting Inc. High powered light emitting diode lighting unit
WO2012168845A1 (en) * 2011-06-06 2012-12-13 Koninklijke Philips Electronics N.V. Remote heat sink
EP2538133A1 (de) * 2011-06-23 2012-12-26 Koninklijke Philips Electronics N.V. Entfernter Kühlkörper

Also Published As

Publication number Publication date
EP1528315B1 (de) 2009-08-05
DE602005015778D1 (de) 2009-09-17
ES2331077T3 (es) 2009-12-21
ATE438828T1 (de) 2009-08-15
EP1528315A3 (de) 2005-07-06

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