WO2011114226A3 - Finned body for a power led lighting apparatus and lighting apparatus therewith - Google Patents

Finned body for a power led lighting apparatus and lighting apparatus therewith Download PDF

Info

Publication number
WO2011114226A3
WO2011114226A3 PCT/IB2011/000581 IB2011000581W WO2011114226A3 WO 2011114226 A3 WO2011114226 A3 WO 2011114226A3 IB 2011000581 W IB2011000581 W IB 2011000581W WO 2011114226 A3 WO2011114226 A3 WO 2011114226A3
Authority
WO
WIPO (PCT)
Prior art keywords
power led
led chip
finned body
front seat
lighting apparatus
Prior art date
Application number
PCT/IB2011/000581
Other languages
French (fr)
Other versions
WO2011114226A2 (en
Inventor
Antonio Di Gangi
Original Assignee
Antonio Di Gangi
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 Antonio Di Gangi filed Critical Antonio Di Gangi
Priority to EP11729675.6A priority Critical patent/EP2547957B1/en
Publication of WO2011114226A2 publication Critical patent/WO2011114226A2/en
Publication of WO2011114226A3 publication Critical patent/WO2011114226A3/en

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
    • F21V29/85—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems characterised by the material
    • F21V29/89—Metals
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/74—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
    • F21V29/75—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with fins or blades having different shapes, thicknesses or spacing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/74—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
    • F21V29/76—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical parallel planar fins or blades, e.g. with comb-like cross-section
    • F21V29/767—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
    • 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
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S2/00—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction
    • F21S2/005—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction of modular construction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S6/00—Lighting devices intended to be free-standing
    • F21S6/005—Lighting devices intended to be free-standing with a lamp housing maintained at a distance from the floor or ground via a support, e.g. standing lamp for ambient lighting
    • F21S6/007—Lighting devices intended to be free-standing with a lamp housing maintained at a distance from the floor or ground via a support, e.g. standing lamp for ambient lighting for indirect lighting only, e.g. torchiere with reflector bowl directed towards ceiling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F21S8/02—Lighting devices intended for fixed installation of recess-mounted type, e.g. downlighters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F21S8/04—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures
    • F21S8/06—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures by suspension
    • F21S8/061—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures by suspension with a non-rigid pendant, i.e. a cable, wire or chain
    • 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
    • F21V29/745—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades the fins or blades being planar and inclined with respect to the joining surface from which the fins or blades extend
    • 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]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
    • F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations

Landscapes

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

Abstract

A finned body (100) comprises a plurality of fins (Ai) at a distance (d,) from one another, and each fin Ai extends from a root of material (3) that has a circular cross section of diameter (Φΐ). The root (3) extends from a support base (1) with a housing support (2) for a power LED chip (20). The method for making the finned body (100) comprises the steps of prearranging a raw block (10) on the front face of which (1a) is formed the housing support (2) for a power LED chip (20), then on the element (10) fins (A1), (A2), (A3),... (An), (Ai), are made starting at a measured distance (D) from the front seat (2), in order to form the support base (1) of thickness (D). The first plane slit (F1) and the subsequent slits are made by progressively moving the cutting tool (42) until the finned body (100) is obtained. The root (3) of the fins (Ai) may have a decreasing conical shape in order to optimize the cooling step. A power LED chip (20) and a reflector body (110) may be mounted on the finned body (100), at the front seat (2). Through holes (8a or 8b) may be made on the front seat (2), such holes crossing the finned body (100) starting from the front seat (2) towards last fin An, which is arranged to receive electrical supply wires of the power LED chip (20) and/or to allow an axial air circulation and to assist heat exchange.
PCT/IB2011/000581 2010-03-17 2011-03-18 Finned body for a power led lighting apparatus and lighting apparatus therewith WO2011114226A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP11729675.6A EP2547957B1 (en) 2010-03-17 2011-03-18 Finned body for a power led lighting apparatus and lighting apparatus therewith

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITPI2010A000029 2010-03-17
ITPI2010A000029A IT1398867B1 (en) 2010-03-17 2010-03-17 METHOD FOR THE MANUFACTURE OF A FINNED BODY OF SUPPORT FOR POWER LED

Publications (2)

Publication Number Publication Date
WO2011114226A2 WO2011114226A2 (en) 2011-09-22
WO2011114226A3 true WO2011114226A3 (en) 2013-04-04

Family

ID=42984074

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2011/000581 WO2011114226A2 (en) 2010-03-17 2011-03-18 Finned body for a power led lighting apparatus and lighting apparatus therewith

Country Status (3)

Country Link
EP (1) EP2547957B1 (en)
IT (1) IT1398867B1 (en)
WO (1) WO2011114226A2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104696832A (en) * 2015-03-31 2015-06-10 东莞市闻誉实业有限公司 Led street lamp

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104025323B (en) * 2011-12-21 2017-12-26 英特尔公司 Heat management for light emitting diode
JP2015079604A (en) * 2013-10-16 2015-04-23 株式会社小糸製作所 Light source device and vehicular lighting fixture

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4985815A (en) * 1989-11-29 1991-01-15 Pioneer Electronic Corporation Light reflector
DE20315760U1 (en) * 2003-10-09 2004-02-26 Bocom Energiespar-Technologien Gmbh Electrical lighting unit has sealed body with inset light emitting diodes behind cap with cover plate
WO2004088761A1 (en) * 2003-04-02 2004-10-14 Lucea Ag Light-emitting panel
US20060198147A1 (en) * 2001-12-29 2006-09-07 Shichao Ge LED and LED lamp
WO2006119582A1 (en) * 2005-05-13 2006-11-16 Tama Berkeljon Lighting apparatus
US20070253202A1 (en) * 2006-04-28 2007-11-01 Chaun-Choung Technology Corp. LED lamp and heat-dissipating structure thereof
DE202008004561U1 (en) * 2008-04-03 2008-06-05 Mohn, Sebastian, Dipl.-Designer LED spotlight with reflector
WO2008093978A1 (en) * 2007-01-31 2008-08-07 Zalman Tech Co., Ltd. Led assembly including cooler having heat pipe
US20090230833A1 (en) * 2008-03-14 2009-09-17 Kao Hsueh-Chung Assembly of light-emitting units
US20090237933A1 (en) * 2008-03-19 2009-09-24 Foxconn Technology Co., Ltd. Led illumination device and light engine thereof

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWM332794U (en) 2007-12-17 2008-05-21 shi-quan Tang Structure improvement on heat radiating seat assembly of LED
CN101614325B (en) 2008-06-27 2012-02-08 富准精密工业(深圳)有限公司 Semiconductor illumination device

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4985815A (en) * 1989-11-29 1991-01-15 Pioneer Electronic Corporation Light reflector
US20060198147A1 (en) * 2001-12-29 2006-09-07 Shichao Ge LED and LED lamp
WO2004088761A1 (en) * 2003-04-02 2004-10-14 Lucea Ag Light-emitting panel
DE20315760U1 (en) * 2003-10-09 2004-02-26 Bocom Energiespar-Technologien Gmbh Electrical lighting unit has sealed body with inset light emitting diodes behind cap with cover plate
WO2006119582A1 (en) * 2005-05-13 2006-11-16 Tama Berkeljon Lighting apparatus
US20070253202A1 (en) * 2006-04-28 2007-11-01 Chaun-Choung Technology Corp. LED lamp and heat-dissipating structure thereof
WO2008093978A1 (en) * 2007-01-31 2008-08-07 Zalman Tech Co., Ltd. Led assembly including cooler having heat pipe
US20090230833A1 (en) * 2008-03-14 2009-09-17 Kao Hsueh-Chung Assembly of light-emitting units
US20090237933A1 (en) * 2008-03-19 2009-09-24 Foxconn Technology Co., Ltd. Led illumination device and light engine thereof
DE202008004561U1 (en) * 2008-04-03 2008-06-05 Mohn, Sebastian, Dipl.-Designer LED spotlight with reflector

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104696832A (en) * 2015-03-31 2015-06-10 东莞市闻誉实业有限公司 Led street lamp

Also Published As

Publication number Publication date
ITPI20100029A1 (en) 2011-09-18
IT1398867B1 (en) 2013-03-21
WO2011114226A2 (en) 2011-09-22
EP2547957A2 (en) 2013-01-23
EP2547957B1 (en) 2018-10-03

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