EP1906084A1 - Unité de DEL modulaire - Google Patents

Unité de DEL modulaire Download PDF

Info

Publication number: EP1906084A1
Authority: EP; European Patent Office
Prior art keywords: fin; heat sink; led unit; base; modular led
Prior art date: 2006-09-30
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

EP07019054A

Other languages

German (de)

English (en)

Other versions

EP1906084B1 (fr

Inventor

Kurt Wilcox

Steven R. Walczak

Steven J. Patkus

Alan J. Ruud

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.)

Wolfspeed Inc

Original Assignee

Ruud Lighting 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.)

2006-09-30

Filing date

2007-09-27

Publication date

2008-04-02

2007-09-27 Application filed by Ruud Lighting Inc filed Critical Ruud Lighting Inc

2008-04-02 Publication of EP1906084A1 publication Critical patent/EP1906084A1/fr

2010-03-03 Application granted granted Critical

2010-03-03 Publication of EP1906084B1 publication Critical patent/EP1906084B1/fr

Status Active legal-status Critical Current

2027-09-27 Anticipated expiration legal-status Critical

Images

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
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V19/00—Fastening of light sources or lamp holders
- F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
- F21V19/003—Fastening of light source holders, e.g. of circuit boards or substrates holding light sources
- 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
- 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

This invention relates to lighting fixtures and, more particularly, to the use of LED arrays (modules) for various lighting fixtures and applications, particularly lighting application for which HID lamps or other common light sources have most typically been used.
LEDs light-emitting diodes
LED modules LED-emitting diodes
LED modules as sources of light in place of HID lamps or other common light sources is far from a matter of mere replacement. Nearly everything about the technology is different and significant problems are encountered in the development of lighting fixture and systems utilizing LED modules. Among the many challenging considerations is the matter of dealing with heat dissipation, to name one example.
LED modules for common lighting applications requires much more than the typical lighting development efforts required in the past with HID or other more common light sources.
creating LED-module-based lighting fixtures for widely varying common lighting applications - such as applications involving different light-intensity requirements, size requirements and placement requirements - is a difficult matter.
harnessing LED module technology for varying common lighting purposes is costly because of difficulty in adapting to specific requirements. There are significant barriers and problems in product development.
modular LED units i.e., units that use LED modules and that are readily adaptable for multiple and varied common lighting applications, involving among other things varying fixture sizes, shapes and orientations and varied light intensity requirements.
modular LED units that are not only easy to adapt for varying common lighting uses, but easy to assemble with the remainder of lighting fixture structures, and relatively inexpensive to manufacture.
Another object of the invention is to provide an improved modular LED unit that is readily adaptable for a wide variety of common lighting uses, including many that have predominantly been served in the past by HID lamps or other common light sources.
Another object of the invention is to provide an improved modular LED unit that significantly reduces product development costs for widely varying lighting fixtures that utilize LED0-array technology.
Another object of the invention is to provide an improved modular LED unit that facilitates manufacture and assembly of lighting fixtures using LED modules as light source.
the present invention is a modular LED unit including one or more LED modules each bearing an array of LEDs and secured with respect to a heat sink, such modular LED unit be adaptable for use in a variety of types of lighting fixtures.
the inventive modular LED unit includes a number of LED modules separately mounted on individual interconnected heat sinks, with each heat sink having: a base with a back surface, an opposite surface, two base-ends and first and second sides; a plurality of inner-fins projecting from the opposite surface of the base; and first and second side-fins projecting from the opposite surface of the base and terminating at distal fin-edges, the first side-fin including a flange hook positioned to engage the distal fin-edge of the second side-fin of an adjacent heat sink.
each heat sink may also include first and second lateral supports projecting from the back surface, each of the lateral supports having an inner portion and an outer portion. The inner portions of such first and second lateral supports may have first and second opposed ledges, respectively, which form a passageway slidably supporting one of the LED modules against the back surface of the base.
each heat sink includes a lateral recess at the first side of the base and a lateral protrusion at the second side of the base.
Such recesses and protrusions of the heat sinks are positioned and configured for mating engagement of the protrusion of one heat sink with the recess of the adjacent heat sink.
the recess is preferably in the outer portion of the first support and the protrusion is preferably on the outer portion of the second support.
first and second lateral supports of each heat sink are preferably in substantial planar alignment with the first and second side-fins, respectively. This allows a wide back surface to accommodate substantial surface-to-surface heat-exchange engagement between the LED module against such back surface of the heat sink.
the flange hook of the first side-fin is preferably at the distal fin-edge of the first side-fin, where it is engaged by the distal fin-edge of the second side-fin of an adjacent heat sink. This provides particularly stable engagement of two adjacent heat sinks.
first and second side-fins are each a continuous wall extending along the first and second sides of the base, respectively. It is also preferred that the inner-fins be continuous walls extending along the base.
the inner-fins are preferably substantially parallel to the side-fins. All fins are preferably substantially parallel to one another.
At least one inner-fin is a "middle-fin" having a fin-end that forms a mounting-hole for securing the modular LED unit to another object, such as adjacent portions of a lighting fixture.
the mounting-hole is preferably a coupler-receiving channel.
the mounting hole which is the coupler-receiving channel is configured to receive a coupler, such as a coupler in the form of a screw or any similar fastener.
each heat sink preferably includes two of the middle-fins.
each middle-fin be a continuous wall that extends along the base between fin-ends, and that the coupler-receiving channel likewise extend continuously between the fin-ends.
Such structures like the rest of the structure of the preferred heat sink, is in a shape allowing manufacture of heat sinks by extrusion, such as extrusion of aluminum.
the modular LED unit includes a plurality of LED modules mounted on corresponding individual heat sinks, each heat sink including a base having a heat-dissipation base surface and a module-engaging base surface with one of the LED modules against the module-engaging base surface, and first and second side-fins each projecting along one of two opposite sides of the base and each terminating at a distal fin-edge.
FIGURES 1-3 illustrate a preferred modular LED unit 10 in accordance with this invention.
Modular LED unit 10 has a number of LED modules 12 separately mounted on individual interconnected heat sinks 14. Each heat sink 14 separately supports one LED module 12.
Each heat sink 14 has a base 20 with a flat back surface 23, an opposite surface 24, two base-ends 26, a first side 21 and a second side 22.
Heat sink 14 also includes a plurality of inner-fins 30 projecting from opposite surface 24 of base 20, a first side-fin 40 and a second side-fin 50, each of the side-fins also projecting from opposite surface 24.
First and second side-fins terminate at distal fin-edges 42 and 52, respectively.
First side-fin 40 includes a flange hook 44 at distal fin-edge 42.
Flange hook 44 is positioned to engage distal fin-edge 52 of second side-fin 50 of an adjacent heat sink 14.
Each heat sink 14 also includes a first lateral support 60A and a second lateral support 60B projecting from back surface 23 of base 20.
First and second lateral supports 60A and 60B are in substantial planar alignment with first and second side-fins 40 and 50, respectively.
Lateral supports 60A and 60B have inner portions 62A and 62B, respectively, and outer portions 64A and 64B, respectively.
Inner portions 62A and 62B of first and second lateral supports 60A and 60B have first and second opposed ledges 66A and 66B, respectively, which form a passageway 16 that slidably supports one of LED modules 12 against back surface 23 of base 20, holding module 12 in firm surface-to-surface heat-transfer relationship therewith.
each heat sink 14 includes a lateral recess 17 at a first side 21 of base 20 and a lateral protrusion 18 at a second side 22 of base 20.
recesses 17 and protrusions 18 are positioned and configured for mating engagement of protrusion 18 of one heat sink with recess 17 of the adjacent heat sink.
Recess 17 is in outer portion 64A of first support 60A and protrusion 18 is on outer portion 64B of second support 60B.
first and second side-fins 40 and 50 are continuous walls extending along first and second sides 21 and 22, respectively, of base 20.
Inner-fins 30 are also continuous walls extending along base 20. All of such fins are substantially parallel to one another.
each heat sink 14 two of the inner-fins are adapted to serve a special coupling purpose - i.e., for coupling to other structures of a lighting fixture.
These "middle-fins,” identified by numerals 32, have coupler-receiving channels 38 running the length thereof - from fin-end 34 at one end of each middle-fin 32 to fin-end 32 at the opposite end thereof.
Channels 38 form mounting-holes 36 which are used to secure modular LED unit 10 to another object, such as a frame member of a lighting fixture.
Couplers may be in the form of screws 19, as shown in FIGURES 2 and 3.
heat sinks 14 are preferably metal (preferably aluminum) extrusions.
the form and features of heat sinks 14 allow them to be manufactured in such economical method, while still providing great adaptability for lighting purposes.
heat sinks 14 of the modular LED units of this invention facilitate their ganging and use in various ways, and facilitate connection of modular LED units of various sizes and arrays in a wide variety of lighting fixtures.

Landscapes

Engineering & Computer Science (AREA)
General Engineering & Computer Science (AREA)
Physics & Mathematics (AREA)
Geometry (AREA)
Non-Portable Lighting Devices Or Systems Thereof (AREA)
Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
Led Device Packages (AREA)
Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
Electronic Switches (AREA)
Light Receiving Elements (AREA)

EP07019054A 2006-09-30 2007-09-27 Unité de DEL modulaire Active EP1906084B1 (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US54190506A	2006-09-30	2006-09-30

Publications (2)

Publication Number	Publication Date
EP1906084A1 true EP1906084A1 (fr)	2008-04-02
EP1906084B1 EP1906084B1 (fr)	2010-03-03

Family

ID=38751452

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP07019054A Active EP1906084B1 (fr)	2006-09-30	2007-09-27	Unité de DEL modulaire

Country Status (4)

Country	Link
EP (1)	EP1906084B1 (fr)
AT (1)	ATE459845T1 (fr)
DE (1)	DE602007005072D1 (fr)
ES (1)	ES1067212Y (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR2818786A1 (fr) *	2000-12-26	2002-06-28	Simon Elkrief	Module et dispositif d'affichage par la commande de l'allumage d'une pluralite de diodes electroluminescentes
US20020196623A1 (en)	2001-06-21	2002-12-26	Star-Reach Corporation	High efficient tubular light emitting cylinder
US20030179548A1 (en) *	2002-03-21	2003-09-25	General Electric Company	Flexible interconnect structures for electrical devices and light sources incorporating the same
WO2007000037A1 (fr) *	2005-06-29	2007-01-04	Mitchell, Richard, J.	Matrice incurvable de del à flux élevé

2007
- 2007-09-27 AT AT07019054T patent/ATE459845T1/de not_active IP Right Cessation
- 2007-09-27 DE DE602007005072T patent/DE602007005072D1/de active Active
- 2007-09-27 EP EP07019054A patent/EP1906084B1/fr active Active
- 2007-10-01 ES ES200701985U patent/ES1067212Y/es not_active Expired - Fee Related

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR2818786A1 (fr) *	2000-12-26	2002-06-28	Simon Elkrief	Module et dispositif d'affichage par la commande de l'allumage d'une pluralite de diodes electroluminescentes
US20020196623A1 (en)	2001-06-21	2002-12-26	Star-Reach Corporation	High efficient tubular light emitting cylinder
US20030179548A1 (en) *	2002-03-21	2003-09-25	General Electric Company	Flexible interconnect structures for electrical devices and light sources incorporating the same
WO2007000037A1 (fr) *	2005-06-29	2007-01-04	Mitchell, Richard, J.	Matrice incurvable de del à flux élevé

Also Published As

Publication number	Publication date
ES1067212U (es)	2008-05-01
DE602007005072D1 (de)	2010-04-15
ATE459845T1 (de)	2010-03-15
ES1067212Y (es)	2008-08-01
EP1906084B1 (fr)	2010-03-03

Publication	Publication Date	Title
AU2007221763B2 (en)	2013-07-11	Modular LED units
AU2008305750B2 (en)	2014-09-04	Light fixture support system
EP1906081B1 (fr)	2011-06-22	Accessoire d'éclairage à base de diodes DEL
CA2604364C (fr)	2012-11-20	Unites del modulaires
US7798670B2 (en)	2010-09-21	Power supply mounting apparatus for lighting fixture
AU2008305757B2 (en)	2012-05-31	Aerodynamic LED floodlight fixture
US8313222B2 (en)	2012-11-20	LED light fixture
US8308320B2 (en)	2012-11-13	Light emitting diode modules with male/female features for end-to-end coupling
US9441824B2 (en)	2016-09-13	LED light fixture with heat-dissipation-related high light output
US20100091495A1 (en)	2010-04-15	Modular Extruded Heat Sink
CN101680625A (zh)	2010-03-24	可调节的照明装置
US20110310603A1 (en)	2011-12-22	Light fixtures
JP2010135131A (ja)	2010-06-17	発光ダイオード照明灯
US20070171631A1 (en)	2007-07-26	LED cove lighting for exterior fascia
EP1906084B1 (fr)	2010-03-03	Unité de DEL modulaire
AU2013205001A1 (en)	2013-05-16	Modular LED units
TW201104144A (en)	2011-02-01	Lamp
AU2013205463B2 (en)	2014-06-12	LED Floodlight Fixture
KR101652833B1 (ko)	2016-08-31	조명장치
KR20230000571U (ko)	2023-03-17	각도가 조절되는 엘이디바 모듈 장치
TW201000811A (en)	2010-01-01	LED lamp

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