EP2930416A1 - Boîtier de fixation de DEL - Google Patents

Boîtier de fixation de DEL Download PDF

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Publication number
EP2930416A1
EP2930416A1 EP14000815.2A EP14000815A EP2930416A1 EP 2930416 A1 EP2930416 A1 EP 2930416A1 EP 14000815 A EP14000815 A EP 14000815A EP 2930416 A1 EP2930416 A1 EP 2930416A1
Authority
EP
European Patent Office
Prior art keywords
fixture
housing
reflectors
leds
restraint
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.)
Withdrawn
Application number
EP14000815.2A
Other languages
German (de)
English (en)
Inventor
Andrii Bodnar
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to EP14000815.2A priority Critical patent/EP2930416A1/fr
Publication of EP2930416A1 publication Critical patent/EP2930416A1/fr
Withdrawn legal-status Critical Current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
    • F21S8/04—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures
    • 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
    • F21V29/505—Cooling arrangements characterised by the adaptation for cooling of specific components of reflectors
    • 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
    • F21V23/02—Arrangement of electric circuit elements in or on lighting devices the elements being transformers, impedances or power supply units, e.g. a transformer with a rectifier
    • 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
    • F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
    • F21Y2103/10—Elongate light sources, e.g. fluorescent tubes comprising a linear 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]

Definitions

  • Subject of the invention is a LED fixture housing.
  • lamps intended for general illumination of premises with large area, such as production halls, shopping centers or warehouses.
  • LEDs have greater endurance compared to conventional fluorescent lamps and can be operated from 3 to 5 times longer than fluorescent lamps.
  • a fixture for a linear fluorescent lamp consists of a housing containing elements inside, which are used to adjust position of the fixture itself and reflector, as well as a power supply, which is located over fluorescent lamp. Since fluorescent lamp emits light in all directions, radiating it around longitudinal axis of the tube, one must equip the fixture with reflectors that would direct the light to a surface to be lighted. Typically, the reflectors are made of thin metal plate, and may be of various shapes. Their exclusive task is a corresponding redirection of light rays from fluorescent lamp. Fixtures of this type do not overheat. To cool fluorescent lamp a glass tube surface of a fluorescent lamp itself is enough.
  • LED light sources as semiconductor elements, require cooling for their proper operation.
  • LED fixtures that consist of housing with a power supply inside, as well as elements that are used to adjust position of fixture, secondary lenses for LEDs that direct light stream by its concentration.
  • WO 2005024291 we know a fixture with light source of several LEDs. It has a housing adapted to illuminate premises; this housing has opened side part that allows obtaining a concentrated light beam.
  • the fixture has elements for controlling a light source and its mounting, and its characteristic feature is a housing that serves to dissipate heat generated by LEDs, while the light source and the said elements can be integrated.
  • LED devices for use particularly in tunnels.
  • the devices consist of a main housing with cooling plates.
  • the diodes are attached to main housing and powered by an external power source through power lines. They contain, in addition, if necessary, reflectors placed on light emitting diodes and a cover - this provides a tight inner space that is connected with at least one slot for extension.
  • diode lamps consist of housing, LEDs and power supply. During operation the diodes generate energy not only in a form of light, but also, in a form of heat that in case of their application in lamps is a disadvantage. Therefore, there is a need to design lamps to dissipate heat as well as possible.
  • FIG. 1 To improve the ability of convection there is used an increased surface area housing, as shown in figure pos. 1 or use of side ribs on the housing as shown in pos. 2.
  • FIG pos. 1 and pos. 2 there are schematically indicated directions of the main heat dissipation during operation of LEDs.
  • An essential feature of the fixtures is also a corresponding light redirection that is solved in case of using LEDs as a light source, mainly through use of optical systems that are placed under diodes and perform function of light beam concentrating.
  • the aim of the invention is to provide such a solution of a LED fixture housing that provides redirection of a light beam and heat dissipation to external environment through convection and radiation at the same time.
  • the LED fixture according to the invention contains an elongated body, and can be provided with a channel with a power supply unit, electrical connections with LEDs placed in series.
  • the fixture housing is equipped with reflectors with radiator functions and which are directed diagonally downward from central part of the fixture.
  • reflectors form a reflector system for LED light and are symmetric or asymmetric with respect to longitudinal symmetry axis of a fixture.
  • housing with reflectors and cover are made of a metal alloy.
  • fig. 1 illustrates a LED fixture in a schematic cross-sectional view wherein the reflectors comprise a single element with the housing
  • fig. 2 schematically illustrates a fixture in cross-section, wherein the reflectors comprise a separate element joined to the housing
  • fig. 3 shows a cross-sectional profile of the fixture together with design in an example, where reflectors take a shape that looks like a cylinder sectors, and the housing has two side, right vertical walls
  • fig. 4 shows a cross-sectional profile of the fixture in the exemplary execution from the fig. 3 , fig.
  • FIG. 5 shows a cross-sectional profile of the fixture in the exemplary execution, where reflectors take a shape that looks like a cylinder sectors without vertical walls of the housing
  • fig. 6 shows a cross-sectional profile of the fixture in the exemplary execution, where reflectors are quite strongly bent downward.
  • Fixture 1 with LEDs 2 has a housing 3 in a form of a rectangular parallelepiped, its channel 4 contains power supply 5.
  • the side vertical walls of the housing 3 are elongated downwards beyond the channel 4, and further are bent outward angularly, reflectors 6 are placed symmetrically with respect to vertical axis of the cross section. Outside of the housing 3, under the channel 4 there are arranged LEDs 2. Heat from the working LEDs 2 is transferred to the housing 3 and reflectors 6, and then is transferred into environment by convection and radiation.
  • Example of this fixture version is shown in fig. 3 , where reflectors 6 comprise single element with housing 3.
  • the reflectors 6 take a form that is similar to a cylinder sector and the housing 3 has two side, right vertical walls with cover 7 on top.
  • the cover 7 contains sockets, and in vertical walls of the housing 3 there are projections that correspond to the sockets of the cover 7 that serve to connect the cover 7 to the housing 3 by means of clips.
  • Vertical walls of the housing 3 together with the cover 7 create channel 4, which houses power supply 5.
  • Fig. 3 schematically represents main directions of heat dissipation from working LEDs 2.
  • Fig. 4 shows a cross-sectional profile of the housing 3 of the fixture 1 from the described above execution example without the cover 7 and equipment elements. Of course, another execution example can use a housing profile 3, which cross section is shown in fig. 6 .
  • Fig. 5 represents a sectional view of the housing 3 containing only reflectors 6 and middle part of the housing 3, on which LEDs 2 are mounted at the bottom, and the top surface has a power unit 5 installed.
  • Fig. 2 schematically illustrates fixture 1 with LEDs 2 wherein reflectors 6 comprise a single element, mechanically connected to housing 3 of the fixture 1.
  • the housing 3 is open at top. Heat dissipation to environment from operating LEDs 2 occurs mainly through the reflectors 6.
  • the housing 3 with the reflectors 6 and the cover 7 in all the examples described above is made of a metal alloy: by casting or extrusion, or sheet bending

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
EP14000815.2A 2014-03-07 2014-03-07 Boîtier de fixation de DEL Withdrawn EP2930416A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP14000815.2A EP2930416A1 (fr) 2014-03-07 2014-03-07 Boîtier de fixation de DEL

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP14000815.2A EP2930416A1 (fr) 2014-03-07 2014-03-07 Boîtier de fixation de DEL

Publications (1)

Publication Number Publication Date
EP2930416A1 true EP2930416A1 (fr) 2015-10-14

Family

ID=50289344

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14000815.2A Withdrawn EP2930416A1 (fr) 2014-03-07 2014-03-07 Boîtier de fixation de DEL

Country Status (1)

Country Link
EP (1) EP2930416A1 (fr)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005024291A2 (fr) 2003-09-04 2005-03-17 Space Cannon Vh S.P.A. Rampe lumineuse equipee de diodes electroluminescentes
US6880952B2 (en) 2002-03-18 2005-04-19 Wintriss Engineering Corporation Extensible linear light emitting diode illumination source
US7244058B2 (en) 2004-03-10 2007-07-17 Truck-Lite Co., Inc. Interior lamp
WO2010052538A1 (fr) 2008-11-06 2010-05-14 Karl Mantinger Dispositif d’éclairage à led, notamment pour tunnels
US20100216536A1 (en) 2007-10-17 2010-08-26 Gagner Mark B Gaming system having challenge gameplay
WO2011028773A1 (fr) * 2009-09-01 2011-03-10 Budike Lothar E S Monture de lumière del comportant des modules del
US20110156584A1 (en) * 2008-08-08 2011-06-30 Solarkor Company Ltd. Led lighting device
DE102011051038A1 (de) * 2011-06-14 2012-12-20 Selux Aktiengesellschaft LED Beleuchtungsanordnung
US20140022781A1 (en) * 2012-07-17 2014-01-23 Mei-Ling Yang Optical cavity structure of led lighting apparatus

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6880952B2 (en) 2002-03-18 2005-04-19 Wintriss Engineering Corporation Extensible linear light emitting diode illumination source
WO2005024291A2 (fr) 2003-09-04 2005-03-17 Space Cannon Vh S.P.A. Rampe lumineuse equipee de diodes electroluminescentes
US7244058B2 (en) 2004-03-10 2007-07-17 Truck-Lite Co., Inc. Interior lamp
US20100216536A1 (en) 2007-10-17 2010-08-26 Gagner Mark B Gaming system having challenge gameplay
US20110156584A1 (en) * 2008-08-08 2011-06-30 Solarkor Company Ltd. Led lighting device
WO2010052538A1 (fr) 2008-11-06 2010-05-14 Karl Mantinger Dispositif d’éclairage à led, notamment pour tunnels
WO2011028773A1 (fr) * 2009-09-01 2011-03-10 Budike Lothar E S Monture de lumière del comportant des modules del
DE102011051038A1 (de) * 2011-06-14 2012-12-20 Selux Aktiengesellschaft LED Beleuchtungsanordnung
US20140022781A1 (en) * 2012-07-17 2014-01-23 Mei-Ling Yang Optical cavity structure of led lighting apparatus

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