EP2902699A1 - Unité d'éclairage pour des éclairages en forme de lanterne - Google Patents

Unité d'éclairage pour des éclairages en forme de lanterne Download PDF

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Publication number
EP2902699A1
EP2902699A1 EP15153055.7A EP15153055A EP2902699A1 EP 2902699 A1 EP2902699 A1 EP 2902699A1 EP 15153055 A EP15153055 A EP 15153055A EP 2902699 A1 EP2902699 A1 EP 2902699A1
Authority
EP
European Patent Office
Prior art keywords
light
reflector
unit according
reflector tube
module carrier
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.)
Granted
Application number
EP15153055.7A
Other languages
German (de)
English (en)
Other versions
EP2902699B1 (fr
Inventor
Rainer Ellmaier
Martin Kronast
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.)
Osram SBT GmbH
Original Assignee
Siteco Beleuchtungstechnik GmbH
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 Siteco Beleuchtungstechnik GmbH filed Critical Siteco Beleuchtungstechnik GmbH
Publication of EP2902699A1 publication Critical patent/EP2902699A1/fr
Application granted granted Critical
Publication of EP2902699B1 publication Critical patent/EP2902699B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F21S8/088—Lighting devices intended for fixed installation with a standard of high-built type, e.g. street light with lighting device mounted on top of the standard, e.g. for pedestrian zones
    • 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
    • F21V7/00—Reflectors for light sources
    • F21V7/0008—Reflectors for light sources providing for indirect lighting
    • F21V7/0016—Reflectors for light sources providing for indirect lighting on lighting devices that also provide for direct lighting, e.g. by means of independent light sources, by splitting of the light beam, by switching between both lighting modes
    • 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
    • F21V7/00—Reflectors for light sources
    • F21V7/04—Optical design
    • F21V7/08—Optical design with elliptical curvature
    • 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
    • F21K9/20—Light sources comprising attachment means
    • 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
    • F21K9/60—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
    • F21K9/68—Details of reflectors forming part of the light source
    • 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
    • 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
    • F21V23/04—Arrangement of electric circuit elements in or on lighting devices the elements being switches
    • F21V23/0442—Arrangement of electric circuit elements in or on lighting devices the elements being switches activated by means of a sensor, e.g. motion or photodetectors
    • 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
    • F21V7/00—Reflectors for light sources
    • F21V7/0058—Reflectors for light sources adapted to cooperate with light sources of shapes different from point-like or linear, e.g. circular 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
    • F21V7/00—Reflectors for light sources
    • F21V7/04—Optical design
    • 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 invention relates to a light unit for use in lantern-shaped lights, in particular light units, which can be used to illuminate traffic routes outdoors and can replace the function of a classic street lamp in the form of a lantern light.
  • Street lights mounted on a mast are very common in the art. However, these lights are often operated with bulbs that are out of date energy consumption. Therefore, various attempts are made to refurbish the luminaires without changing their external appearance by more modern light inserts. For this purpose, often the bulbs are simply replaced by more modern, e.g. replaced on LED based bulbs.
  • the object of the present invention is to provide a light unit which can be used in a lantern-shaped luminaire and thereby makes it possible to use modern illuminants and to maintain as far as possible the appearance of the lantern in comparison to conventional illuminants.
  • the object is achieved by a light unit according to claim 1.
  • the light insert according to the present invention makes it possible to use lighting modules that are equipped, for example, with LEDs as bulbs. Due to the combination with the reflector tube, a part of the light is reflected by the reflector tube and deflected laterally in all directions, so that the light insert can also be perceived as such in darkness is. In the case of lighting modules that intentionally emit light onto the traffic surface, the problem arises that they are not perceptible in the dark as a luminous surface. Although this is acceptable for street lamp applications. However, such luminaire modules can not be used in the classic lantern-shaped luminaires, because the lantern is perceived only as such, even if light is distributed by the lantern in all radial directions.
  • the reflector surface is formed diffusely reflecting.
  • the reflector surface may be formed in particular matt white. This type of reflector surface supports the effect that part of the light of the light modules is emitted evenly in all directions to make the street light visible in the dark.
  • the reflector surface in a cross section perpendicular to the longitudinal extension of the reflector surface is round, in particular circular or elliptical. This shape has the advantage that the light is emitted evenly in all radial directions from the street lamp.
  • the reflector tube is concavely curved in a cross section along the longitudinal extension of the reflector tube at least along a portion.
  • the concave curvature has the effect that the light component, which is reflected at the reflector surface, laterally deflects horizontally and obliquely upward, so that the lamp is visible from a greater distance and also house facades can brighten something.
  • the illumination of the traffic area in the area below the light unit is in any case accomplished by the proportion of light leaving the light unit without prior reflection on the reflector tube.
  • the circumference of the reflector surface along the longitudinal extension of the reflector tube from the end of the Leuchtmodulclerosiss toward the opposite end, ie towards the mast approach at least partially steadily too. This supports the effect that the light is emitted laterally radially to the longitudinal extent of the reflector tube.
  • This section can be used to integrate various components of the light unit.
  • electrical ballasts can be accommodated, which are necessary for the operation of the light source in the light module.
  • this space can be used to fully integrate a Mastaufsatz Sharing, which is used for mounting the light unit on the mast.
  • the cylindrical piece may for example have a circumference which is slightly larger than the circumference of the mast.
  • a cylindrical section is to be understood as meaning a section whose lateral surface has a maximum inclination of ⁇ 5 ° to the longitudinal direction of the reflector tube. Slight deviations from an exact cylinder tube are harmless to technical functions and are therefore tolerable.
  • the light module carrier is in a cross-sectional plane along the longitudinal extent of the reflector tube over the maximum width of the reflector tube in the same cross-sectional plane between 10% and 50% on one or both sides.
  • the supernatant is advantageous because it increases the proportion of light leaving the luminaire directly without reflection from the reflector tube.
  • the projection should not be too large to ensure that some of the light is reflected on the reflector tube and the entire light unit can be installed in the housing of a lantern-shaped luminaire.
  • the light module carrier has receptacles for two or more light modules, which are arranged symmetrically about the longitudinal axis of the reflector tube.
  • two light modules can be arranged mirror-symmetrically to a longitudinal cross-section of the reflector tube.
  • the connection between the light module carrier and the reflector tube is integrally formed to form a continuous thermal path.
  • the light module carrier and the reflector tube can be made at least in the region of their connection of a continuous die-cast aluminum (or two continuous halves).
  • the lighting modules in particular modules that are occupied by LEDs, generate a considerable amount of waste heat during operation. This must be derived.
  • heat sinks are usually provided in the prior art.
  • the light module carrier in conjunction with the reflector surface may already act as such a heat sink.
  • the heat of the light modules is dissipated via the light module carrier to the reflector surface, whereby a larger surface for cooling the light modules is available.
  • wall thicknesses of 1 mm to 5 mm are preferred in order to form a good thermal conductivity.
  • the lighting unit has at least one, but preferably two or more lighting modules whose lighting means are in the form of LEDs.
  • the LEDs are preferred for street lighting due to low energy consumption.
  • lighting devices with LEDs always have the difficulty that the corresponding lighting modules must be cooled. In connection with the use of light of the present invention, such a cooling is particularly easy, without having to provide large-volume separate heatsink.
  • the lighting means of the one or more lighting modules are each provided individually or in groups with optics, in particular a reflector and / or a lens.
  • the optics ensure that the light distribution of the bulbs is widened with a wide beam. Such broad radiation is preferred for street or pavement lighting in the vicinity of the lantern-shaped lamp.
  • the optics ensure targeted light emission in the direction of the traffic area to be illuminated. The reflection of the small part of the light on the reflector tube, however, the optical effect of a classic street lamp, which scatters light in all directions, maintained.
  • LED reflector modules can be used, which are constructed in principle as in the European patent application EP 2 360 427 A2 described. Those skilled in the art can configure such LED reflector modules, in particular, for emitting a broad light distribution, which are advantageous for the registration in the light unit according to the invention.
  • the light module carrier is elliptical in a cross section perpendicular to the longitudinal axis of the reflector tube.
  • a frame structure may be provided with a peripheral edge having the shape of an ellipse. On such a frame structure can easily provide two or four shots for lighting modules.
  • the frame parts can act as cooling fins.
  • the light module carrier is closed on the side facing away from the reflector tube with a lid.
  • the lid covers the at least one light module.
  • the lid is in contact with the lighting module and the lid may in particular itself be made of a thermally conductive material, e.g. be made of die-cast aluminum.
  • the cover acts as part of a heat sink which comprises the reflector tube and the light module carrier as a whole. Attached to the lid may also be growing means, e.g. for attaching a light roof, as usual for lantern lights, be provided.
  • FIG. 1 and 2 is the essential part of a light unit for installation in outdoor lights, as shown in a lantern-shaped lamp, in all figures, the lighting modules containing LEDs are not shown to illustrate the support structure.
  • the light insert comprises an approximately tubular element which forms a longitudinally extending reflector tube 2.
  • the reflector tube 2 comprises a tapering from bottom to top conical portion which forms a reflector surface 4.
  • a cylindrical portion 6 is provided downstreamly thereafter.
  • the cylindrical portion 6 is, as in the FIGS. 3 and 4 , which are quite true to scale, provided with a peripheral surface which is almost cylindrical, but is inclined at a small angle of about 1.5 ° to the longitudinal axis.
  • fastening hooks 8 are provided, which allow the device with support elements of a lamp, e.g. with a mast or a support plate to connect.
  • a light module carrier 10 is provided, which in the illustrated embodiment for receiving two light-emitting modules (not shown in the figures) are arranged on opposite sides.
  • the light module carrier 10 has an approximately elliptical shape and is formed from a frame into which two flat lighting modules can be inserted and screwed.
  • the lighting modules which are suitable for the illustrated light unit, have light sources, possibly with an associated optics, and emit the light downwards in the direction of the reflector surface 4. Suitable lighting modules for the light application shown have a relatively wide light distribution.
  • the far greater part of the emitted light is not reflected on the reflector surface 4, but serves directly for illuminating the traffic routes, which are to be illuminated by the light insert in the lantern-shaped luminaire.
  • only part of the light emitted by the light modules (less than 5%, 10% or 20%) impinges on the reflector surface 4 and is deflected laterally.
  • the reflector surface 4 is, as in the cross-sectional figures according to FIGS. 3 and 4 is clearly seen, provided with a longitudinally concave curvature and tapers from the cylindrical portion 6, which forms the mast workede end of the light unit, to the opposite end of the reflector tube 2, on which the light module carrier 10 is provided. Due to the concave curvature of the part of the light that is emitted by the lighting modules in the light module carrier down, laterally deflected approximately radially to the longitudinal axis of the reflector tube 2. It is further provided that the reflector surface 4 is formed only diffuse reflective, so that the reflected light radiation is also perceived as scattered light, without causing glare in direct insight to the light use.
  • This portion of the reflected light serves to lighten the use of light during operation in the dark, so that the light is visible in the dark.
  • the greater part of the light, which is emitted directly without reflection on the reflector surface 4 is visible only at certain angles due to the directed light emission to the traffic area to be illuminated.
  • the reflector surface 4, however, is widely visible because it emits scattered light evenly.
  • the light module carrier 10 is formed as a frame with approximately elliptical basic shape and a plurality of, in the present example, four inner webs. Each two adjacent downwardly open reports of the frame form a receiving space for a light module.
  • the lighting modules which may be used in connection with the present embodiment, may be formed in the manner as described in the European patent application EP 2 360 427 A2 are described as LED reflector modules.
  • the modules have two light exit surfaces, each of which emit light through one of the opening in the light module carrier 10 down in the direction of the reflector surface.
  • the lighting modules are designed so that they produce a broad distribution of light, so that only a small part of the light impinges on the reflector surface 4, as previously described.
  • the light module carrier 10 is closed at the top with a cover 12 which in the FIGS. 6 or 7 is shown.
  • the lid 12 is formed in the form of an elliptical plate corresponding to the peripheral shape of the light carrier 10.
  • a fastening element in the form of a screw thread 14 is shown, on which, for example, a housing roof of the lantern-shaped lamp can be attached.
  • 12 screw holes are provided in the lid to screw the lid 12 with the light module carrier 10.
  • the light module carrier 10 and the cover 12 are formed from relatively massive die-cast aluminum parts. Wall thicknesses between 4 mm to 12 mm are preferred. This massive design has the advantage that heat developed by the light module can be dissipated into the light module carrier.
  • the reflector surface 4 is integrally connected to the light module carrier 10.
  • the reflector surface 4 can also be made of an aluminum die cast, with wall thicknesses of 1 mm to 5 mm are preferred. As a result, a good thermal path is formed between the light module carrier 10 and the reflector surface 4.
  • the downwardly adjoining cylindrical portion 6 is formed of the same die-cast aluminum with a wall thickness between 4 mm to 8 mm. The design therefore allows the heat developed by the light modules to be dissipated throughout the entire reflector tube 2, the light module carrier 10 and the lid 12. It is thus possible to operate the lighting modules without additional heat sink.
  • the reflector tube and the cylindrical portion have in the illustrated embodiment on a rotational symmetry about the longitudinal axis. Although this is preferred to ensure uniform radial light emission, elliptical or polygonal shapes may also be provided.
  • the illustrated light unit can be used for a variety of different lantern-shaped lights.
  • the light is suitable for the renovation of old lights.
  • the lamps and the associated control gear are removed in the lantern-shaped lamp and replaced by the light insert according to the invention.
  • the light insert is designed so that the interior, in particular in the cylindrical section 6, can be used to accommodate fasteners for the lamp, such as a mast attachment, and / or electrical equipment such as ballasts, sensors, etc.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
EP15153055.7A 2014-01-31 2015-01-29 Unité d'éclairage pour des éclairages en forme de lanterne Active EP2902699B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102014101242.9A DE102014101242B4 (de) 2014-01-31 2014-01-31 Lichteinheit für laternenförmige Leuchte

Publications (2)

Publication Number Publication Date
EP2902699A1 true EP2902699A1 (fr) 2015-08-05
EP2902699B1 EP2902699B1 (fr) 2017-05-31

Family

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EP15153055.7A Active EP2902699B1 (fr) 2014-01-31 2015-01-29 Unité d'éclairage pour des éclairages en forme de lanterne

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EP (1) EP2902699B1 (fr)
DE (1) DE102014101242B4 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170089531A1 (en) * 2015-09-29 2017-03-30 Gerry Duane Prince Lantern assembly and auxiliary base

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014104436B4 (de) 2014-03-28 2021-03-11 Siteco Gmbh Lichttechnische Abdeckung für eine Leuchte oder ein Leuchtenmodul

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100128475A1 (en) * 2008-11-26 2010-05-27 Spring Cty Electrical Manufacturing Company Outdoor Lighting Fixture Using LEDs
EP2360427A2 (fr) 2010-02-12 2011-08-24 Siteco Beleuchtungstechnik GmbH Réflecteur tri-zone

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29616286U1 (de) * 1996-09-19 1997-02-13 Schicho, Herwald, 93057 Regensburg Laterne
CN101451695A (zh) * 2007-12-07 2009-06-10 富准精密工业(深圳)有限公司 发光二极管灯具

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100128475A1 (en) * 2008-11-26 2010-05-27 Spring Cty Electrical Manufacturing Company Outdoor Lighting Fixture Using LEDs
EP2360427A2 (fr) 2010-02-12 2011-08-24 Siteco Beleuchtungstechnik GmbH Réflecteur tri-zone

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170089531A1 (en) * 2015-09-29 2017-03-30 Gerry Duane Prince Lantern assembly and auxiliary base
US10234089B2 (en) * 2015-09-29 2019-03-19 Gerry Duane Prince Lantern assembly and auxiliary base

Also Published As

Publication number Publication date
DE102014101242B4 (de) 2020-07-09
DE102014101242A1 (de) 2015-08-06
EP2902699B1 (fr) 2017-05-31

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