EP2896877B1 - Luminaire with LED cartridges - Google Patents

Luminaire with LED cartridges Download PDF

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Publication number
EP2896877B1
EP2896877B1 EP14192396.1A EP14192396A EP2896877B1 EP 2896877 B1 EP2896877 B1 EP 2896877B1 EP 14192396 A EP14192396 A EP 14192396A EP 2896877 B1 EP2896877 B1 EP 2896877B1
Authority
EP
European Patent Office
Prior art keywords
led
luminaire
cartridges
luminaire according
previous
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.)
Active
Application number
EP14192396.1A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2896877A1 (en
Inventor
Victor Jose Fernandez Bastos
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.)
Holophane Europe Ltd
Original Assignee
ABL IP Holding LLC
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 ABL IP Holding LLC filed Critical ABL IP Holding LLC
Publication of EP2896877A1 publication Critical patent/EP2896877A1/en
Application granted granted Critical
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Active legal-status Critical Current
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Classifications

    • 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
    • F21S8/08—Lighting devices intended for fixed installation with a standard
    • F21S8/085—Lighting devices intended for fixed installation with a standard of high-built type, e.g. street light
    • F21S8/086—Lighting devices intended for fixed installation with a standard of high-built type, e.g. street light with lighting device attached sideways of the standard, e.g. for roads and highways
    • 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
    • F21V19/04—Fastening of light sources or lamp holders with provision for changing light source, e.g. turret
    • 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
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/003—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array
    • F21V23/007—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array enclosed in a casing
    • F21V23/009—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array enclosed in a casing the casing being inside the housing of the lighting device
    • 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
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/001—Arrangement of electric circuit elements in or on lighting devices the elements being electrical wires or cables
    • 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
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/003—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array
    • 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
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/06—Arrangement of electric circuit elements in or on lighting devices the elements being coupling devices, e.g. connectors
    • 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
    • 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
    • F21V5/00—Refractors for light sources
    • F21V5/007—Array of lenses or refractors for a cluster of light sources, e.g. for arrangement of multiple light sources in one plane
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
    • F21W2131/10—Outdoor lighting
    • F21W2131/103—Outdoor lighting of streets or roads
    • 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
    • F21Y2113/00—Combination 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
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Definitions

  • the present invention relates to luminaires, and more particularly to luminaires formed with LED cartridges.
  • LED luminaires have become popular because they are more energy efficient and last longer than luminaires incorporating traditional light sources such as incandescent or fluorescent lights.
  • One drawback of LED luminaires is that, unless costly electronic controls are provided in the luminaire, it can be difficult to increase or decrease the light output of the luminaire if the desired output changes once the luminaire is installed, unlike traditional luminaires in which the existing light bulb can be replaced with one having a higher or lower wattage. Further, when an LED in an LED luminaire does fail, it is often more difficult to replace than the light bulb in a traditional luminaire.
  • Luminaires of the prior art are disclosed in WO 2011/023037 A1 , US 2012/162987 A1 , US 2013/088864 A1 , US 2009/168416 A1 , EP 2 327 930 A1 and CN 101 532 624 A .
  • Features of the invention described herein address these shortcomings.
  • the present invention provides a luminaire according to claim 1.
  • the luminaire includes at least two compartments, each compartment retaining a driver and associated electronics, for powering and controlling the at least one LED located within at least one of the plurality of LED cartridges.
  • the at least two compartments may be integrally formed with a wire passageway between each of the compartments.
  • the electronic housing may comprise steel or aluminum.
  • the electronic housing may comprise a top side facing away from an area to be illuminated and an underside facing the area to be illuminated, and the underside comprises a plate to enclose the compartments and contain the driver and optional associated electronics located therein.
  • the plate may be hinged to the electronic housing.
  • a gasket may be provided between the plate and the electronic housing.
  • Each of the LED cartridges comprises an optic covering the at least one PCB and at least one LED mounted to the at least one PCB.
  • the optic comprises at least one lens, each of the at least one lenses corresponding to the number of LEDs provided in the LED cartridge.
  • Each of the LED cartridges further comprises a casting, the casting including a recess for receiving the PCB, at least one LED mounted thereon, and the optic.
  • the casting may be chevron-shaped.
  • the casting may be rectangular, square, trapezoidal, polygonal, rhombus, octagonal, pentagonal or hexagonal shaped.
  • a plurality of LEDs may be mounted to the at least one PCB.
  • Each of the LEDs may be independently selected from a single-die LED, multi-die LED, DC LED, AC LED, organic LED, white LED, colored LED, and multi-colored LED.
  • the optic may comprise acrylic or polycarbonate.
  • Each of the LED cartridges may further comprise a gasket positioned between the optic and at least one PCB.
  • the optic may be an optical assembly comprising a frame having at least one aperture for receiving the at least one lens.
  • the frame and at least one lens may be formed separately or may be integrally formed.
  • the plurality of LED cartridges may comprise a plug-in electrical connector.
  • Each of the plurality of LED cartridges may be connected to a mounting arm, and the mounting arm may be connected to the electronic housing.
  • Each of the electronic housing, LED cartridge castings and mounting arm may be independently formed from a thermally conductive material.
  • the luminaire may comprise a passageway between each of the plurality of LED cartridges, the passageway providing for convective cooling between each of the plurality of LED cartridges.
  • At least one of the LED cartridges may be electrically connected to a driver, and another of the LED cartridges may be either directly connected to a driver or connected to another of the LED cartridges in a series configuration.
  • the casting in the LED cartridge may include a recess for receiving the mounting arm.
  • the casting in the at least one LED cartridge may include a plurality of ribs for guiding wires from the at least one LED cartridge to the electronic housing.
  • Each of the plurality of LED cartridges may be removable from the luminaire so as to allow for easy replacement of the LED cartridges with other LED cartridges.
  • the luminaire may be pole-mounted or side-mounted.
  • the electronic housing may be attached to a pole-adapter, and the pole-adapter may be attached to a pole.
  • the luminaire may further comprise a cable cover for covering wires coming from the pole, pole-adapter or a wall.
  • the luminaire may comprise a trim piece on the end of a distal-most LED cartridge.
  • the present invention provides a luminaire, wherein the luminaire comprises an electronic housing and a plurality of removable light-emitting diode (“LED”) cartridges, each of the plurality of LED cartridges comprising four printed circuit boards (“PCBs”), each PCB comprising four LEDs mounted thereon and an optic covering each of the PCBs and LEDs mounted thereon, wherein each of the LED cartridges further comprises a chevron-shaped casting, the casting including a recess for receiving the PCBs, LEDs mounted thereon, and optics.
  • LED light-emitting diode
  • the luminaire may be tilted relative to the space to be illuminated by 0 to 20 degrees tilt.
  • the luminaire may be tilted relative to the space to be illuminated by 0 to 5 degrees tilt.
  • Certain features of the invention include a luminaire having an electronic housing and at least one LED cartridge mounted onto the electronic housing.
  • the electronic housing includes at least one compartment for housing the driver and/or other electronics for powering and controlling the luminaire.
  • two compartments are provided in the electronic housing, each adapted to house a driver.
  • any number of compartments may be provided, depending upon the needs of the luminaire.
  • the two compartments are integrally formed with a wire passageway provided between them.
  • the electronic housing may be formed from any material having suitable rigidity and thermal properties, including by not limited to metallic materials, such as steel, aluminum, etc.
  • a plate is positioned on the underside of the electronic housing to enclose the compartments and contain the electronics housed therein.
  • the plate may be hinged to the housing on one side (see Figure 8 ) so that the plate remains attached to the housing during servicing of the electronics. However, such hinged attachment is certainly no required.
  • a gasket may optionally be provided at the interface between the electronic housing and the plate to ensure that the compartments are airtight to prevent dust and debris from entering a compartment and detrimentally impacting the electronics therein.
  • Each LED cartridge includes a metal (such as aluminum) casting, a printed circuit board (“PCB") populated with light emitting diodes (“LEDs”), and an optic having lenses for positioning over the PCB so that the lenses direct the light emitted by the LEDs. See Figures 3 and 9-11 .
  • the casting includes a recess in its underside to receive the PCB and optic.
  • the PCB and optic may be retained on the casting in any of a variety of ways, including with screws that extend through the optic and PCB and engage the casting. Provision of a recess forms a casting skirt around the LED cartridge to prevent light pollution at 90° from nadir and above. While the casting is shown as chevron-shaped, it could assume other geometric shapes, including, but not limited to, rectangular, square, trapezoidal, polygonal, rhombus, octagonal, pentagonal, hexagonal, etc.
  • the PCB may any type of board, including, among others, a metal core board, FR4 board, CHM1 board, etc. Any type and number of LEDs may be arranged on the PCB in any configuration.
  • the LEDs can be single-die or multi-die light emitting diodes, DC or AC, or can be organic light emitting diodes. LEDs need not be only white LEDs. Rather color or multicolor LEDs may be provided. Nor must all of the LEDs on a PCB be the same color.
  • the optic may be a monolithic piece of acrylic, polycarbonate or other suitable material with the lenses formed integrally therein.
  • a gasket (not shown) may be positioned between the optic and the PCB to protect the LEDs from dust and other contaminants.
  • the optic is an optical assembly that includes a frame having apertures that receive the lenses. While the frame and lenses could be formed separately and then assembled together, in some embodiments the frame and lenses are integrally formed in a molding process. In one such embodiment, the lenses are formed and positioned in a mold. The frame is then molded around the lenses so that the frame material (e.g., acrylic, polycarbonate, etc.) fuses with the lens material so as to form an integral optic. To the extent one is used, a gasket can be co-molded with the optic so that the resulting optical assembly includes a frame, lenses, and gasket all integrally-formed.
  • the frame material e.g., acrylic, polycarbonate, etc.
  • An optic may be provided with lenses of any type (e.g., Type I-V), and indeed not all of the lenses within an optic need be the same. Moreover, the type, number, and arrangement of LEDs on the PCBs, as well as the lens types provided on the optics, may be different between the different LED cartridges provided in a luminaire.
  • any type e.g., Type I-V
  • the type, number, and arrangement of LEDs on the PCBs, as well as the lens types provided on the optics may be different between the different LED cartridges provided in a luminaire.
  • each LED cartridge may be mounted on and electrically connected to the electronic housing. See, e.g., Figures 12 and 22 .
  • each LED cartridge has plug-in electrical connectors so that the necessary electrical connections are made when the cartridge is snapped into an adjacent cartridge (or directly into the electronic housing, if the first in the LED cartridge series).
  • the LED cartridges are indirectly connected to each other and to the electronic housing using a mounting arm.
  • the mounting arm is mounted to the electronic housing and any number of LED cartridges can then be mounted to the mounting arm.
  • the mounting arm may be formed of any material having suitable rigidity and strength to support the LED cartridges, including, but not limited to, metallic materials such as steel, aluminum, etc. Fabrication of the electronic housing, LED cartridge castings, and mounting arm from a thermally conductive material facilitates removal of heat from the assembly.
  • the LED cartridges are not directly connected to each other or to the electronic housing.
  • passageways for convective cooling are provided between adjacent LED cartridges, as shown in Figure 4 .
  • Thermal isolation of the electronic housing from the LED cartridges reduces heat transfer to the electronic housing, thereby increasing the luminaire life by keeping the drivers cooler.
  • the mounting arm provides a grounding path for each of the LED cartridges.
  • FIG. 2 illustrates an embodiment of a luminaire provided with eight LED cartridges.
  • the first set of four LED cartridges is powered by a first driver
  • the second set of four LED cartridges is powered by a second driver.
  • Electrical connections from the electronic housing to the first LED cartridge in the first set are made.
  • Electrical connections are subsequently made with adjacent LED cartridges to thereby connect in series all of the LED cartridges in the first set.
  • wires from the electronic housing bypass the first set of LED cartridges so that the first LED cartridge in the second set is directly connected with the electronic housing (or more specifically, the second driver housed therein).
  • the remaining LED cartridges in the second set are subsequently connected in series to each other.
  • the electrical connections are made on the top of the LED cartridge castings so as to be covered by the mounting arm.
  • a recess may be formed in the top of each casting to accommodate the mounting arm.
  • Ribs may be provided in the underside of the mounting arm so as to form a channel or wireway in which the wires may be safety positioned to prevent damage (such as caused by wire pinching).
  • ribs may also extend upwardly from a casting to assist with proper positioning of the mounting arm on the casting and help delineate the wireway.
  • a luminaire emitting the desired light distribution may be configured by controlling the number of LED cartridges used in the luminaire as well as the lumen package and optic selected for each cartridge. Assembly of the luminaire is facilitated by the easy plug and play electrical connections between LED cartridges, which also enable modification of the luminaire (removal, addition, or replacement of LED cartridges) in the field.
  • the luminaire may be pole-mounted (see Figures 1 , 4-8 , 12 , and 17-20 ) or side-mounted (see Figures 12-16 ).
  • the electronic housing couples with a pole adapter which brings the cables up from the pole and into the electronic housing.
  • a cable cover (see Figure 1 ) may be provided to cover the cable coming from the pole adapter (or wall if wall- or side-mounted).
  • a trim piece may be provided on the end of the distal-most LED cartridge to impart a polished appearance to the luminaire.
  • the luminaire may be tilted relative to the space to be illuminated by 0 to 20 degrees tilt. In particular, the luminaire may be tilted relative to the space to be illuminated by 0 to 5 degrees tilt.
  • Figures 23 to 64 show various views of a luminaire in accordance with an embodiment of the present invention. In particular, these views show a luminaire having different numbers of LED cartridges attached.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
EP14192396.1A 2013-11-07 2014-11-07 Luminaire with LED cartridges Active EP2896877B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US201361962477P 2013-11-07 2013-11-07

Publications (2)

Publication Number Publication Date
EP2896877A1 EP2896877A1 (en) 2015-07-22
EP2896877B1 true EP2896877B1 (en) 2017-12-20

Family

ID=51900720

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14192396.1A Active EP2896877B1 (en) 2013-11-07 2014-11-07 Luminaire with LED cartridges

Country Status (2)

Country Link
EP (1) EP2896877B1 (es)
ES (1) ES2663277T3 (es)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3966491A4 (en) * 2019-05-10 2023-05-10 Hubbell Lighting, Inc. LENS ARRANGEMENT FOR AN LED LIGHT
NL2024980B1 (en) * 2020-02-24 2021-10-14 Schreder Sa Modular luminaire assemblies for tunnels

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7744247B2 (en) * 2007-12-27 2010-06-29 Fu Zhun Precision Industry (Shen Zhen) Co., Ltd. LED lamp having double-side heat sink
CN101532624A (zh) * 2009-04-15 2009-09-16 史杰 照射角度可调节的高散热性led模组路灯灯头
WO2011023037A1 (zh) * 2009-08-25 2011-03-03 Shi Jie 警示灯组件及具有警示灯组件的照射角度可调的led路灯
TWM379717U (en) * 2009-11-26 2010-05-01 Alliance Optotek Corp Modular illuminating device
CN102537696A (zh) * 2010-12-23 2012-07-04 富准精密工业(深圳)有限公司 发光二极管灯具
US9028096B2 (en) * 2011-10-05 2015-05-12 Dialight Corporation Angled street light fixture

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
EP2896877A1 (en) 2015-07-22
ES2663277T3 (es) 2018-04-11

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