EP2908050A1 - Module d'éclairage - Google Patents

Module d'éclairage Download PDF

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Publication number
EP2908050A1
EP2908050A1 EP14382051.2A EP14382051A EP2908050A1 EP 2908050 A1 EP2908050 A1 EP 2908050A1 EP 14382051 A EP14382051 A EP 14382051A EP 2908050 A1 EP2908050 A1 EP 2908050A1
Authority
EP
European Patent Office
Prior art keywords
housing
leds
cover
lenses
printed circuit
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Withdrawn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
EP14382051.2A
Other languages
German (de)
English (en)
Inventor
Friedemann Hoffmann
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 EP14382051.2A priority Critical patent/EP2908050A1/fr
Publication of EP2908050A1 publication Critical patent/EP2908050A1/fr
Withdrawn legal-status Critical Current

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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
    • F21V31/00—Gas-tight or water-tight arrangements
    • F21V31/005—Sealing arrangements therefor
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S4/00—Lighting devices or systems using a string or strip of light sources
    • F21S4/20—Lighting devices or systems using a string or strip of light sources with light sources held by or within elongate supports
    • F21S4/28—Lighting devices or systems using a string or strip of light sources with light sources held by or within elongate supports rigid, e.g. LED bars
    • 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
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
    • F21V17/12—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by screwing
    • 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
    • F21V31/00—Gas-tight or water-tight arrangements
    • F21V31/03—Gas-tight or water-tight arrangements with provision for venting
    • 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
    • F21V5/04—Refractors for light sources of lens shape
    • 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

  • the present invention refers to a lighting module, which comprises a row of LEDs connected to power supply means and presents constructive features aimed at recovering an important part of the lighting module in case of failure and to permit the incorporation of a variable number thereof in both indoor and outdoor lighting fixtures.
  • This lighting module is applicable in the field of manufacturing lighting fixtures and lighting elements in general.
  • LEDs light emitting diodes
  • those lamps or lighting fixtures that incorporate one or more groups of LEDs to cover a given lighting area, these LEDs are placed on a curved surface, which is particularly difficult, frontally closing the lighting fixture by means of a transparent or translucent cover so that the light produced by the LEDs can exit to the outside towards a direction that is determined by the position in which said LEDs are installed on said curved surface of the lamp or lighting fixture.
  • a drawback of this type of lighting fixtures is the deterioration of the colour and performance of the LEDs when said LEDs are exposed to dirt and chemical contaminants, being frequent that lighting fixtures using LEDs are sealed, which prevents their subsequent repair in case of failure.
  • LEDs generate a bright light that can be uncomfortable and dazzle the observer if (s) he looks straight at them.
  • the lighting module object of this invention comprising a row of LEDs connected to power supply means, presents some structural features particularly suited to provide adequate protection against external contamination to LEDs, thus avoiding their rapid deterioration and improving their performance. It also allows for the repair of the module by reusing a substantial part of it in case of failure, what makes this lighting module especially suitable for being incorporated into lamps or lighting fixtures requiring a large number of LEDs.
  • Another objective of the present invention is to provide the lighting module with a flat configuration, thus avoiding the problems involved in installing the LEDs in a curved way.
  • Another objective of this lighting module is to provide it with a suitable sealing tightness to allow both its indoor and outdoor use, while allowing the opening of the module to repair it by replacing some of its elements.
  • this lighting module comprises a housing provided with a flat bottom, side walls and a front mouth; a printed circuit arranged on the bottom of the housing; a row of LEDs connected to said printed circuit and facing the front mouth of the housing; a removable cover for sealing the front mouth of the housing, the said cover having a line of windows opposing the respective LEDs of the row of LEDs; a line of lenses of complex surface sealingly fixed to the respective windows of the cover, said lenses of complex surface presenting a curvature that is calculated for guiding the light emitted by the LEDs towards a particular direction.
  • said module includes a thermal transfer sheet to facilitate the dissipation of the heat generated by the LEDs during operation, it being provided that said housing is made from a material having good heat transmission properties, such as aluminium.
  • the module Between the cover and the mouth of the housing, the module includes a seal which allows for sealing the housing, thus preventing the entry of dust or other contaminants to the housing that may affect the colour or the performance of the LEDs.
  • the LEDs are installed flat on the printed circuit housed inside the module and that the light emitted by the LEDs is guided by the respective lenses of complex surface towards the desired direction without having to install the LEDs in a curved way.
  • the inside of the module can be accessed to replace the printed circuit carrying the LEDs in the event of a failure, while minimizing the cost of repair since both the housing and the cover carrying the lenses of complex surface can be reused, which enables the module to be repaired at a very low cost.
  • the housing and/or the cover comprises at least one through-hole into which a pressure regulating valve is mounted, which prevents entry of water into the housing and allows for the exit of air from the inside thereof.
  • this compensating valve allows for expelling air and any chemical contaminating to the outside when heating occurs inside the module, due to the heat dissipated by the LEDs during operation.
  • the housing of the module has, at its periphery, solid portions with holes for receiving fixing screws for the attachment to said support or lighting fixture.
  • the electrical connection of the printed circuit to an external power supply will be performed by means of cables installed through the holes defined in the cover or in the housing and provided with respective seal gasket suitable to maintain the sealing tightness of the module.
  • the lenses of complex surface have, at least at one of their inner and outer surfaces, embossed patterns that are defined during the moulding conformation of said lenses, which perform a dispersion or fading of the light emitted by the LEDs, thus avoiding discomfort from glare.
  • the lighting module comprises a housing (1), in this case in aluminium, which has a flat bottom (11), side walls (12) and a front mouth (13) on which a cover (2) is removable fixed by means of screws (91).
  • a printed circuit (3) is arranged, to which a row of LEDs (4) facing the mouth (13) of the housing are connected.
  • the cover (2) has a row of windows (21) in which lenses (5) of complex surface are fixed by gluing, as seen in the detail of Figure 3 , so that in the fixing position of the cover said lenses (5) are opposite to respective LEDs (4).
  • the lenses (5) of complex surface have a curvature that is calculated to guide the light emitted by the LEDs (4) towards a certain direction.
  • the printed circuit (3) can be resin coated inside the housing (1) to provide additional protection.
  • a heat transfer sheet (6) is arranged in order to promote heat dissipation of the heat produced by the LEDs by means of the aluminium housing (1) itself.
  • a sealing gasket (7) is arranged, which in this embodiment example takes the shape of a flat sheet with a plurality of holes in the areas facing the LEDs (4) and the respective lenses (5).
  • the housing (1) has at its bottom an opening (14) in which a pressure regulating valve (8) is mounted.
  • the housing has at its periphery solid portions (15) with holes (16) for the insertion of fixing screws (9).
  • the lenses (5) present at their periphery a flange (51) forming their mounting stop for the windows (21) of the cover (2) and forming surfaces that are intended to be fixed to said cover (2) by means of an adhesive.
  • the lenses (5) of complex surface present, on their outer surface, an embossed pattern (52) defined during the moulding of said lenses (5) on glass, and suitable for scattering or fading the light emitted by the LEDs, thus avoiding discomfort from glare.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
EP14382051.2A 2014-02-14 2014-02-14 Module d'éclairage Withdrawn EP2908050A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP14382051.2A EP2908050A1 (fr) 2014-02-14 2014-02-14 Module d'éclairage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP14382051.2A EP2908050A1 (fr) 2014-02-14 2014-02-14 Module d'éclairage

Publications (1)

Publication Number Publication Date
EP2908050A1 true EP2908050A1 (fr) 2015-08-19

Family

ID=50179538

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14382051.2A Withdrawn EP2908050A1 (fr) 2014-02-14 2014-02-14 Module d'éclairage

Country Status (1)

Country Link
EP (1) EP2908050A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10180248B2 (en) 2015-09-02 2019-01-15 ProPhotonix Limited LED lamp with sensing capabilities

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201246634Y (zh) * 2008-08-26 2009-05-27 天台县海威机电有限公司 Led路灯
CN201382340Y (zh) * 2009-02-26 2010-01-13 天台县海威机电有限公司 带透镜的led路灯
CN201462503U (zh) * 2009-06-09 2010-05-12 陈怀中 一种led灯光引擎
DE202010004871U1 (de) * 2010-04-11 2010-07-29 Lightdesign Solutions Gmbh Abgedichtetes LED-Modul
CN201651911U (zh) * 2010-04-14 2010-11-24 浙江捷莱照明有限公司 Led通用模块灯
US20110103051A1 (en) * 2009-10-30 2011-05-05 Ruud Lighting, Inc. Led apparatus and method for accurate lens alignment
CN203024119U (zh) * 2012-12-12 2013-06-26 广东同方照明有限公司 一种led路灯的防水电源模组
CN102221141B (zh) * 2010-04-13 2013-07-17 厦门格绿能光电股份有限公司 Led集成模块
US20130194799A1 (en) * 2012-02-01 2013-08-01 Delta Electronics, Inc. Illuminating apparatus and illuminating module

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201246634Y (zh) * 2008-08-26 2009-05-27 天台县海威机电有限公司 Led路灯
CN201382340Y (zh) * 2009-02-26 2010-01-13 天台县海威机电有限公司 带透镜的led路灯
CN201462503U (zh) * 2009-06-09 2010-05-12 陈怀中 一种led灯光引擎
US20110103051A1 (en) * 2009-10-30 2011-05-05 Ruud Lighting, Inc. Led apparatus and method for accurate lens alignment
DE202010004871U1 (de) * 2010-04-11 2010-07-29 Lightdesign Solutions Gmbh Abgedichtetes LED-Modul
CN102221141B (zh) * 2010-04-13 2013-07-17 厦门格绿能光电股份有限公司 Led集成模块
CN201651911U (zh) * 2010-04-14 2010-11-24 浙江捷莱照明有限公司 Led通用模块灯
US20130194799A1 (en) * 2012-02-01 2013-08-01 Delta Electronics, Inc. Illuminating apparatus and illuminating module
CN203024119U (zh) * 2012-12-12 2013-06-26 广东同方照明有限公司 一种led路灯的防水电源模组

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10180248B2 (en) 2015-09-02 2019-01-15 ProPhotonix Limited LED lamp with sensing capabilities

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