EP3460321A1 - Dispositif d'éclairage - Google Patents

Dispositif d'éclairage Download PDF

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Publication number
EP3460321A1
EP3460321A1 EP18192543.9A EP18192543A EP3460321A1 EP 3460321 A1 EP3460321 A1 EP 3460321A1 EP 18192543 A EP18192543 A EP 18192543A EP 3460321 A1 EP3460321 A1 EP 3460321A1
Authority
EP
European Patent Office
Prior art keywords
lighting device
light
chamber
base element
wall
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
EP18192543.9A
Other languages
German (de)
English (en)
Other versions
EP3460321B1 (fr
Inventor
Stefan Eibl
Steven Schmidt
Jörg Goldstein
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.)
Rehau Automotive SE and Co KG
Original Assignee
Rehau AG and Co
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 Rehau AG and Co filed Critical Rehau AG and Co
Publication of EP3460321A1 publication Critical patent/EP3460321A1/fr
Application granted granted Critical
Publication of EP3460321B1 publication Critical patent/EP3460321B1/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
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V25/00—Safety devices structurally associated with lighting devices
    • 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
    • F21K9/27—Retrofit light sources for lighting devices with two fittings for each light source, e.g. for substitution of fluorescent tubes
    • 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
    • F21V25/00—Safety devices structurally associated with lighting devices
    • F21V25/12—Flameproof or explosion-proof arrangements
    • 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
    • F21V3/00—Globes; Bowls; Cover glasses
    • F21V3/04—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings
    • F21V3/06—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings characterised by the material
    • F21V3/062—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings characterised by the material the material being plastics
    • 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
    • F21V31/04—Provision of filling media
    • 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 relates to a lighting device.
  • Known lighting devices which have at least one light-emitting diode or preferably a plurality of light-emitting diodes, are usually used for the substitution of the long-known fluorescent tube. Depending on the design, we therefore speak of LED linear luminaires in this context. Such lighting devices are for example from the DE 20 2012 101 571 U1 and the DE 10 2013 213 767 A1 known.
  • the lighting device according to the invention is characterized in particular by the fact that it has a base element and a light guide element connected to the base element, wherein the lighting device has at least one light emitting diode, wherein at least a portion of the wall of the light guide element with an inner surface facing the light emitting diode is transparent, wherein in at least one chamber is at least partially bounded by a base element wall, and wherein the at least one chamber contains an inert gas.
  • the lighting device according to the invention solves the problem of the invention completely.
  • the lighting device is opposite to those of State of the art built safer and has an increased functionality and reliability.
  • the lighting device according to the invention also ensures an improved dissipation of the heat generated by the LEDs.
  • the lighting device is formed such that the inert gas is selected from carbon dioxide, nitrogen, helium, neon, argon, krypton, xenon, sulfur hexafluoride, 1,1,1,2-tetrafluoroethane , Pentafluoroethane, 1,1,1,2,3,3,3-heptafluoropropane, trifluoromethane and mixtures of the foregoing.
  • the inert gas is selected from carbon dioxide, nitrogen, helium, neon, argon, krypton, xenon, sulfur hexafluoride, 1,1,1,2-tetrafluoroethane , Pentafluoroethane, 1,1,1,2,3,3,3-heptafluoropropane, trifluoromethane and mixtures of the foregoing.
  • the selection of the inert gases mentioned above for the filling of the chamber of the lighting device ensures that it can not come to an ignition of the gas or gas mixture in a technical malfunction of the lighting device, which is present in the vicinity of the lighting device or in the chamber of the lighting device is or has penetrated there.
  • inert gases are very particularly advantageous for extinguishing a spark or arc, which may originate from the electrical components of the lighting device due to a malfunction of the lighting device, without any ignitable gas or gas mixture in the vicinity of the Lighting device or is ignited in its interior.
  • the concentration of the inert gas can be chosen so that the proportion of oxygen in the chamber, which originates from the air, when the chamber of the lighting device during the same selbiger is still open, is very low.
  • an oxygen concentration in the range from 0.01 to 0.5% by volume is preferred.
  • the chamber is flushed with the inert gas for a sufficient time, whereby the air contained therein and the oxygen in the air is displaced.
  • the chamber of the lighting device is at least partially pumped out and then the inert gas flows into the chamber up to the desired pressure.
  • the pressure of the inert gas can advantageously be chosen so that it is larger or increased in the chamber relative to the pressure in the external environment of the lighting device.
  • a typical value for the pressure of the inert gas in the chamber of the lighting device is 1.05 to 3.0 bar.
  • the inert gas may flow out of the chamber of the lighting device, so that in such a case in case of malfunction no danger emanates from the electrical components of the lighting device for the atmosphere in the outer environment of the lighting device.
  • Such a lighting device according to the invention can thus be used and operated in so-called “ex-protected areas”.
  • the lighting device comprises at least one sensor which is arranged in the chamber of the lighting device.
  • this at least one sensor can be a gas sensor, which records and forwards parameters of the inert gas.
  • parameters may include concentration, temperature, pressure, gas-specific properties such as density or thermal conductivity or others, and others.
  • the parameters can be fed to an evaluation logic, which determines from these parameters the proper operation of the lighting device and displays.
  • Such monitoring can be carried out permanently or clocked in quick succession, for example once or several times in one minute.
  • the senor in the chamber of the lighting device can also be set up in such a way that it detects and forwards parameters of a gas which has penetrated into the chamber from the outside environment.
  • the evaluation logic recognizes that an improper operation of the lighting device is present and switches these off.
  • the senor detects both parameters of the inert gas, as well as parameters of a penetrated into the chamber from the outside environment gas and forwards.
  • the senor is designed to be self-monitoring.
  • Such a self-monitoring sensor is able to monitor its own proper function permanently and in case of a deviation, for example because the sensor is defective or change its properties due to aging or the like, to become active by turning off the lighting device and thus prevents any damage emanating from the lighting device.
  • the senor is arranged on a closure cap.
  • the chamber which has two open ends, at least partially closed.
  • the sensor can also be arranged elsewhere in the lighting device.
  • the senor has and is connected to power and power supply lines for the signals or lines used for both power transmission and signal routing.
  • a closure cap may very conveniently comprise a valve to supply inert gas to the chamber closing the closure cap at one end, or to adjust the pressure of the inert gas in the chamber.
  • a lighting device according to the invention which has a very high level of functionality and reliability.
  • At least one chamber is formed.
  • two, three or more chambers are formed in the lighting device, wherein the two, three or more chambers are connected to each other in the lighting device or not connected.
  • the lighting device is formed such that two or three chambers are formed in the base member.
  • this is very particularly stable, in particular, as regards the rigidity and the torsional stiffness.
  • the thermal management of such a lighting device is improved because a more favorable distribution and release of the heat generated by the light-emitting diodes can take place.
  • these chambers can also be foamed or have another filling.
  • such a lighting device according to the invention with two or three chambers also increased functionality, as in the chambers, for example, ballasts, drivers, cables, especially power cables for the power to operate the LEDs and ballasts and drivers, data cable to the light emitting diodes and sensors, and Sensors and other electrical components, in particular busbars, for example, for contacting an adjacently arranged lighting device are receivable.
  • the chambers for example, ballasts, drivers, cables, especially power cables for the power to operate the LEDs and ballasts and drivers, data cable to the light emitting diodes and sensors, and Sensors and other electrical components, in particular busbars, for example, for contacting an adjacently arranged lighting device are receivable.
  • the heat can be readily absorbed by the base element wall bounding the chambers, which at least partially has a metal reinforcement, received and forwarded and discharged.
  • two of the three chambers of such a lighting device according to the invention with three chambers are formed symmetrically with respect to a mirror plane.
  • a base element wall is formed which at least partially delimits the chamber or the chambers.
  • the base element wall has at least partially a metal reinforcement.
  • the metal of the metal reinforcement of the base member wall may be selected from iron, steel, copper, aluminum, magnesium, brass, bronze, and the mixed composition of the foregoing.
  • the metal reinforcement may be advantageously formed in the form of a film or tape, or by deposition in a plating process, or by sputtering or spin coating, or in a high vacuum process or in a 3D printing process.
  • the metal reinforcement can be arranged on a surface of a wall of the base element of polymer material or in a wall of the base element made of polymer material, so that in the latter the metal in the wall, so at least on both sides, is preferably surrounded on all sides by polymer material.
  • a metal foil or a metal strip is first brought into the desired spatial form, for example by a roll forming process, and then this suitably shaped metal is encapsulated in a coextrusion process with polymer material or polymer material is injection-molded onto it.
  • a base element of any length can be easily manufactured, which can be cut to the required dimensions.
  • the thickness of the metal reinforcement may advantageously be 50 ⁇ m to 500 ⁇ m.
  • a base element wall formed in this way which at least partially has a metal reinforcement, is particularly advantageously suitable for receiving, passing on and emitting heat which is generated by the light emitting diodes of the lighting device during operation.
  • the lighting device has a base element and a light-conducting element connected to the base element.
  • the base element of the lighting device may consist of a polymer material with flame-retardant properties or a high fire resistance, so that effective protection can be provided in case of fire.
  • a polymer material with flame-retardant properties or a high fire resistance so that effective protection can be provided in case of fire.
  • melt drops for example made of polycarbonate or polymethyl methacrylate
  • the wall of the light pipe element is a closed wall made of a polymer material, this wall is a very effective barrier between the lighting device and the environment, and thus protects against the ingress of media, which would reduce the functionality and / or life of the lighting device ,
  • At least one region of the wall of the light-conducting element with an inner surface facing the light-emitting-light exit surface is transparent or consists of a translucent polymer material, so that light generated by the lighting device or the light-emitting diode (s) blasted into the surroundings of the lighting device can be.
  • the wall of the light-conducting element entirely consists of a light-permeable polymer material.
  • a light pipe element can be produced particularly advantageously in a simple and practical manner by extrusion, extrusion blow molding and / or coextrusion or injection molding or deep drawing due to the restriction to a single type of material.
  • the light-conducting element may particularly preferably be an injection-molded or extruded light-conducting element.
  • injection molding or extrusion a variety of Light pipe elements are produced in a series production in a simple and practical way.
  • the light-conducting element in one of the aforementioned methods, it is also possible for the light-conducting element to be produced using a generative production method, in particular in one piece, for example by a 3-D printing method.
  • a data processing machine-readable three-dimensional model can advantageously be used for the production.
  • the invention also includes a method for generating a data processing machine readable three-dimensional model for use in a light pipe element manufacturing method. Specifically, the method also includes inputting data representing a light pipe element into a data processing machine and using the data to represent a light pipe element as a three-dimensional model, the three-dimensional model being suitable for use in fabricating a light pipe element.
  • Also included in the method is a technique wherein the input data of one or more 3D scanners operating on either touch or non-contact, the latter being energy delivered to a light pipe element and receiving the reflected energy, and being a virtual three dimensional Model of a light pipe element is generated using a computer-aided design software.
  • the light pipe element according to the invention may be wholly or partly made using a line-building or layer-building manufacturing process.
  • the light-conducting element according to the invention may be wholly or partly manufactured line by line or in layers by a material application.
  • the manufacturing process can be a generative powder bed process, in particular selective laser melting (SLM), selective laser sintering (SLS), selective heat sintering (SHS), selective electron beam melting (EBM / Electron Beam Additive Manufacturing - EBAM) or solidification of Include powder material by means of binder (binder jetting).
  • SLM selective laser melting
  • SLS selective laser sintering
  • SHS selective heat sintering
  • EBM / Electron Beam Additive Manufacturing - EBAM selective electron beam melting
  • the manufacturing process can be a generative free-space process, in particular, hardfacing, wax deposition modeling (WDM), contour crafting, metal powder application (MPA), plastic powder coating, cold gas spraying, electron beam welding (EBW) or melt coating techniques such as fused deposition Modeling (FDM) or Fused Filament Fabrication (FFF).
  • WDM wax deposition modeling
  • MPA metal powder application
  • the manufacturing process may include a generative liquid material process, particularly stereolithography (SLA), Digital Light Processing (DLP), Multi Jet Modeling (MJM), Polyjet Modeling or Liquid Composite Molding (LCM). Furthermore, the manufacturing method may include other generative layer building methods, in particular Laminated Object Modeling (LOM), 3D screen printing or light-controlled electrophoretic deposition.
  • SLA stereolithography
  • DLP Digital Light Processing
  • MJM Multi Jet Modeling
  • LCD Liquid Composite Molding
  • the manufacturing method may include other generative layer building methods, in particular Laminated Object Modeling (LOM), 3D screen printing or light-controlled electrophoretic deposition.
  • LOM Laminated Object Modeling
  • the light-conducting element-in particular also for the realization of a simple producibility by injection molding or extrusion-can be formed particularly advantageously in one piece.
  • the light pipe element may be formed in one piece and transparent.
  • the polymeric material constituting or containing the optical fiber element may comprise homo- and / or copolymers and / or mixtures thereof.
  • This polymer material may preferably also be uncrosslinked, partially crosslinked or fully crosslinked.
  • the polymer material constituting or containing the optical fiber element may preferably be selected from fluoropolymers, fluorine-containing polyurethane, silicones, polyolefin homo- and / or polyolefin copolymers, cyclic polyolefin copolymers (COC, COP), poly-alpha-olefin copolymers, polyolefin elastomers, ionomers, polyesters, polyester copolymers, polyvinyl chloride, polyamide, polystyrene, polystyrene copolymer, methyl methacrylate-acrylonitrile-butadiene-styrene copolymer, acrylic ester-styrene-acrylonitrile copolymer, styrene-acrylonitrile copolymer, styrene-methyl methacrylate copolymer, polycarbonate, Acrylate resin, acrylate copolymer (EBA, EMA), polymethyl (meth
  • the translucent polymer material which consists of the light-conducting element or the wall of the light-conducting element, comprises partially or entirely homo- and / or copolymers and / or mixtures thereof.
  • the translucent polymer material can be uncrosslinked, partially crosslinked or fully crosslinked.
  • the translucent polymer material may be selected from fluoropolymers, silicones, polyolefins, polystyrenes (SMMA, SAN), polyamides, acrylate copolymers, polyacetates, polyphenylene sulfone, polyethersulfone, polyethylene terephthalate, polybutylene terephthalate, polymethyl (meth) acrylates, poly (meth) acrylates, polycarbonate, polyurethanes, and may contain fillers (such as fire and flame retardant additives).
  • fluoropolymers silicones, polyolefins, polystyrenes (SMMA, SAN), polyamides, acrylate copolymers, polyacetates, polyphenylene sulfone, polyethersulfone, polyethylene terephthalate, polybutylene terephthalate, polymethyl (meth) acrylates, poly (meth) acrylates, polycarbonate, polyurethanes, and may contain fillers (
  • the wall of the light-conducting element may at least partially consist of glass.
  • the light generated by the lighting device can advantageously radiate or be transmitted to the outside or into the surroundings of the lighting device without substantial distractions.
  • the base element of the lighting device of the present invention may also comprise, include or consist of a polymer material according to the above list.
  • the polymer material of the base member is made translucent. It is preferred if the polymer material is colored. A partial light transmission of the base member may be desired for various reasons.
  • the lighting device has at least one light-emitting diode, wherein the light-emitting device preferably has a plurality of at least five or at least ten or at least twenty light-emitting diodes.
  • LED chips are also understood as meaning “LED chips” and so-called “pixelated LEDs”.
  • the light emitting diodes of the lighting device can be arranged, for example, in succession in a row or arranged in a single row or in a multi-row.
  • the lighting device is preferably between 10 cm and 10 m long and preferably has between three and thirty light-emitting diodes on a longitudinal section of 10 cm, depending on the design and the requirements with respect to luminous flux and light distribution.
  • the light-conducting element is detachably or non-detachably connected to the base element.
  • the lighting device can be configured such that the light-conducting element is connected to the base element by a plug connection or a latching connection or a welded connection or an adhesive connection or a combination of the aforementioned.
  • the light-conducting element can be connected to the base element by means of a plug connection.
  • the light-conducting element can be connected to the base element by means of a latching connection.
  • the light-conducting element can be connected to the base element by means of a welded connection.
  • the light-conducting element can be connectable to the base element by means of an adhesive connection.
  • sealing means can be used for the gas-tight connection of the light-guiding element and the base element, such as sealing cords or sealing lips or sealing compounds. These can be arranged on the corresponding connecting sections of the light-guiding element and / or of the base element.
  • the base element may, in particular, be a base element that can be fastened to a building wall, in particular also a ceiling.
  • the entire lighting device can be held on the building wall via the base element or connected to the building wall.
  • the base member may be configured in a manner known to those skilled in the art to be attached to the building wall.
  • the base element may, for example, be screwed to the building wall or be glued to the building wall, for example, or fastened to a latching device, for example with the building wall.
  • the light-conducting element and the base element are integrally connected by a coextrusion process.
  • the production of such a running light device is particularly simple, since a plug-in or latching or welding or gluing process does not have to be performed in order to connect the light guide and the base member together. Rather, the lighting device is formed with the integrally interconnected Licht effets- and base element in a coextrusion process, with equal between the light pipe element and the base element is a particularly high tightness against the ingress or egress of gases.
  • a not insignificant weight saving can be achieved in the lighting device according to the invention, at the same time can be achieved by this measure increased security in the connection of the light guide and the base member.
  • a lighting device has an increased stability to mechanical stress by the integral connection of the light-guiding element to the base element.
  • the material of the wall of the light pipe element and / or the base member contains additives that the barrier properties of the wall with respect to a diffusion of oxygen and / or hydrogen and / or a combustible gas and / or a Increase combustion entertaining or favoring gas.
  • additives may be selected from phyllosilicates, such as synthetic phyllosilicates.
  • the multi-layered layers of the wall may contain polymer material and / or metal and / or glass.
  • the lighting device is coated with a protective element, in particular with a shrink tube.
  • the protective element can advantageously be designed in the form of a sleeve, a tube or tubular and / or tubular or preferably have a tubular and / or tubular section.
  • the protective element can be designed in the form of a rectilinear pipe.
  • a tubular protective element with a circumferential wall, the chamber or the Chambers of the tubular protective element bounded or limited, can be prepared in a very simple and practical way by extrusion or injection molding.
  • the coating of the lighting device with a protective element in the form of a protective lacquer can also be provided.
  • the protective element may particularly preferably also consist of a shrunk-on shrink-tube material shrunk onto the lighting device or may be in the form of a shrunk-on shrunk onto the lighting device, whereby a very tight tight connection between the protective element and the lighting device can advantageously be realized.
  • the protective element is chosen such that it limits or prevents the diffusion of the inert gas out of the chamber or the lighting device through the wall of the light-conducting element and of the base element.
  • the protective element or the wall of the protective element may comprise a translucent element and a base element or consist of a translucent element and a base element, wherein the translucent element is detachably connected to the base element, and wherein the base element is connected to the base element, for example latching - connectable.
  • the lighting device according to the invention is completely encapsulated.
  • the lighting device according to the invention can therefore be used in a completely encapsulated embodiment also in environments with ammoniacal gases which have a strong corrosive effect, without the ammoniacal gases having a damaging effect on the light-emitting device received in the protective element or in the protective element Section or longitudinal section of the lighting device have.
  • the protective element is advantageously an effective barrier to protection against chemicals, gases, vapors, liquids and moisture.
  • the light-emitting diode of the lighting device is preferably completely or completely encapsulated in that it is accommodated in the chamber which is formed by the base element and the light-conducting element connected to the base element.
  • the thus formed chamber of the lighting device has in a particularly preferred embodiment, two open ends, each end of the chamber at least partially closed by a closure cap, which consists for example of a polymer material or contains such.
  • each end of the chamber is completely or completely closed by the respective closure cap, whereby a contact of the lighting device to a possibly ignitable gas or gas mixture in the vicinity of the lighting device or in its interior can be excluded or almost excluded.
  • At least one of the closure caps can be designed to be at least partially translucent or at least partially or completely from one translucent polymer material. Depending on the application, a light-permeable design of at least one of the closure caps may be desired in order to let light generated by the lighting device also pass through the closure cap to the outside.
  • Each of the closure caps can be connected to the ends of the chamber, preferably at the peripheral edge with a portion of the base member and a portion of the light pipe member materially, in particular welded or glued to close the ends of the chamber.
  • the chamber of the base element has two open ends, each end at least partially closed by a closure cap, which consists for example of a polymer material or contains such.
  • the circumference of the contact of the lighting device or the contact of the chamber with a possibly ignitable gas or gas mixture in the vicinity of the lighting device or in its interior can be reduced very effectively by the closure caps.
  • each end of the chamber is completely or completely closed by the respective closure cap, whereby a contact of the lighting device to a possibly ignitable gas or gas mixture in the environment of the lighting device or in the interior of the lighting device can advantageously be excluded or almost excluded ,
  • At least one of the closure caps may be at least partially or completely opaque or at least partially or entirely consist of an opaque polymer material. Depending on the application, an opaque formation of at least one of the closure caps may be desired in order to prevent light generated by the lighting device from passing through the closure cap to the outside.
  • Each of the sealing caps can be connected in a material-locking manner, in particular welded or glued, to a section of the base element for closing the ends of the chamber, preferably at the circumferential edge.
  • the lighting device has at least one electrical cable or an electrical line, the or which is set up for the power supply of the lighting device and / or for the transmission of control signals to the lighting device.
  • the electrical cable can also serve to forward monitoring signals of the lighting device.
  • such an electrical cable can be used advantageously to connect in this way a plurality of adjacent lighting devices with only one electrical cable to a power source.
  • the electrical cable can be connected to a plug, so that the lighting device is designed ready for connection.
  • the electrical cable can be a connection cable which is set up for the power supply of the lighting device and / or for the transmission of control signals to the lighting device.
  • the electrical contacting of the lighting device may be performed by means of plug contacts.
  • the power supply of the lighting device by means of wireless power supply, with no cable or no lead through the wall or cap of the lighting device by the energy is supplied inductively and / or by means of radio frequency of the lighting device.
  • the lighting device according to the invention can thus be designed such that it is designed ready for connection and has a connecting cable which is set up for the power supply of the lighting device and / or for the transmission of control signals to the lighting device,
  • the closure caps of the chamber of the base member may be configured so that the cable is inserted from the plug continuously through the closure cap into the chamber.
  • the closure caps may also include holding devices to hold, for example, drivers and other electrical components.
  • a lighting device formed according to this practical embodiment can be assembled in a simple and practical manner.
  • the cap with the plug and the cable with the lighting device to connect to close the respective end of the chamber or at least partially close, wherein when connecting or closing the plug on the light emitting device facing the end of the cable can be connected to the mating connector on the lighting device or the plug and the mating connector can be plugged into each other.
  • connection process for connecting the cap with the end of the chamber or with the lighting device and the connection with the electrical cable for the power supply and / or control signal supply of the lighting device can be accomplished.
  • a seal or a liquid seal is provided to avoid a liquid supply to the plug or to seal the plug against penetrating liquid, which is clamped between the cap and the recorded in the cap portion of the cable and extends circumferentially around the portion ,
  • a clamping liquid seal held a very effective protection of the plug and thus also the mating connector and the lighting device from a possibly ignitable gas or gas mixture in the vicinity of the lighting device or in its interior and also from damaging or corrosive liquid or moisture will be realized.
  • a strain relief for the electrical cable is provided in order to avoid that the electrical cable in tensile stress transmits this in an undesirable manner to other components.
  • the use of a seal mentioned above can also be dispensed with, in that the portion of the cable accommodated in the closure cap has a peripheral outer surface which has at least one material connection to the closure cap for sealing against penetrating liquid.
  • at least one cohesive connection which preferably extends circumferentially around the peripheral outer surface of the cable section and which preferably extends circumferentially and contiguous to the circumferential outer surface, the Contact the chamber with liquid or moisture of the outside environment advantageously excluded or almost excluded.
  • the base member and the light pipe element which are plug-in and / or latching connected to each other, are connected to each other after the manufacture of the male and / or snap-in connection by gluing and / or by welding.
  • At least one sealing element is arranged on the base element and / or on the light-conducting element in the region of the plug-in or snap-in connection, with which the plug-in or latching connection of the two elements after the plug-in or latching connection is plugged or latched connected to each other.
  • closed wall or a closed wall of the light-conducting element including no wall is to be understood, which necessarily forms a closed chamber or which compulsorily forms a closed chamber of the light pipe element .
  • the closed wall bounds or delimits only one chamber, which of course may also have at least one open end, via which the chamber is connected to the outside environment or via which the chamber is accessible from outside the chamber or from outside the light-conducting element.
  • the lighting device Due to the envisaged releasable connectivity of base element and light-conducting element, the lighting device can be formed in a simple and practical media-tight become. Furthermore, the expense of realizing the latching connection between the base element and the light-conducting element can be simplified by the provided releasable connectivity of base element and light-conducting element.
  • the detachable connection of the light-conducting element to the base element can be realized in any manner known to the person skilled in the art.
  • the releasable connection may comprise at least one detachable latching connection or at least one detachable snap-in connection or at least one detachable clip connection or at least one detachable positive-locking connection or at least one detachable screw connection.
  • the at least one region of the wall of the light-conducting element that has the inner surface facing the light-emitting diode light-emitting surface is a region of the light-conducting element or that this region is provided on the light-conducting element.
  • the chamber may be at least partially filled, in particular poured out to improve the barrier properties and / or the media resistance and / or the thermal conductivity. This improves the electrical insulation or the danger of short circuits.
  • the pouring can be done, for example, with acrylate resin or cast resins.
  • a lighting device 10 according to the present invention is shown in a schematic cross-sectional view.
  • the rectilinearly extending light fixture 10 comprises an elongated and rectilinearly extending base member 11 and an elongated and rectilinearly extending light conduit member 18 made of a polymeric material.
  • the rectilinearly extending lighting device 10 has a plurality of series-sequentially arranged LEDs 13, of which in the Thomasdarstelllung Fig. 1 only one is illustrated.
  • Three elongated chambers 17 ', 17 "and 17"' are formed in the lighting device 10 between the base member 11 and the light pipe element 18.
  • the lighting device 10 also has an in Fig. 1 unillustrated electrical cable adapted for powering the lighting device 10 and for transmitting control signals to the lighting device 10 from an unillustrated external power source and control signal source.
  • the electrical cable is connected to a plug of the lighting device 10, which is not illustrated, and is led out of the lighting device 10, which is also not illustrated.
  • the light-conducting element 18 has a wall 19 delimiting the chamber 17 '.
  • the wall 19 is a closed wall 19 made of a polymer material. Characterized in that the wall 19 is a closed wall 19 made of a polymer material, this wall 19 is a very effective barrier against the access of gas from the environment of the lighting device 10, in particular, when the light-conducting element 18 is sealed to the base member 11.
  • the lighting device 10 comprises a base element 11 with a base element wall 14, which consists of a polymer material 15 and a metal reinforcement 16 provided in sections.
  • the light-emitting diodes 13 are attached to a carrier element 12, which is fixed in the base element 11 by holding elements 33.
  • the lighting device 10 has a light-conducting element 18 made of a transparent polymer material.
  • the region 20 of the wall 19 of the light-conducting element 18, which has an inner surface 21 facing the light-emitting diode light-emitting surface, is translucent, so that light generated by the light-emitting diodes 13 can be radiated into the surroundings of the lighting device 10.
  • the light pipe element 18 is formed in cross section in the form of a segment of a circle.
  • the light-conducting element 18 may also be formed, for example, at least partially rectangular or polyhedral or elliptical or concave or in a mixed form thereof.
  • the LED light-emitting surface of the light emitting diode 13 is in the embodiment according to Fig. 1 spaced from the inner surface 21 of the wall 19 of the light-conducting element 18, but in an alternative embodiment, also on the inner surface 21 of the wall 19 of the light-conducting element 18 abut or lie flat and cohesively connected to the inner surface 21 of the wall 19.
  • the lighting device 10 may also have any other design.
  • an inert gas 40 is included in the chambers 17 ', 17 "and 17"'.
  • ballast 22 for the operation of the light emitting diode 13 and cable 23 for the power supply to the light emitting diode 13 and ., added to other electrical components of the lighting device 10.
  • the base element wall 14 delimiting the chambers 17 ', 17 "and 17'” consists of polymer material 15 into which a metal reinforcement 16 is at least partially introduced.
  • FIG Fig. 1 The arrangement of the metal reinforcement 16 in the base element wall 14 delimiting the chambers 17 ', 17 “and 17'” is shown in FIG Fig. 1 illustrated only by way of example. It goes without saying that, depending on the prevailing requirements, the metal reinforcement 16 of the base element wall 14 can also be arranged differently, then in a different embodiment of the invention, the entire base element wall 14 delimiting the chambers 17 "and 17 '" can have a metal reinforcement 16 ,
  • the metal reinforcement 16 may be arranged on the surface of the base element wall 14 and / or in the polymer material 15 of the base element wall 14.
  • the metal reinforcement 16 in and / or the base element wall 14 bounding the chamber 17 ', 17 "and 17'” results in a high rigidity and strength of the base element 11.
  • the base element 11 and the light-conducting element 18 are connected to one another in the case of the lighting device 10 according to the invention.
  • a welded joint 26 may be realized, wherein the polymer material 15 of a portion of the base member 11 is bonded to the polymeric material of a portion of the light pipe member 18 by welding.
  • the polymer material 15 of a section of the base element 11 may be connected in sections, punctiformly or over the entire length of the base element 11 or light-conducting element 18 to the polymer material of a section of the light-conducting element 18.
  • a projection 32 is formed on the base element 11, which can interact with an end section 30 on the light-conducting element 18.
  • a welded joint 26 may be formed.
  • a protective element in the form of a shrink tube 28 can be pulled over the lighting device 10, which is shown only as a detail and only in principle, it is understood that the gap between the shrink tube 28 and the outside of the lighting device 10 is not formed, but shown here only for clarity.
  • the close fitting on the outside of the lighting device 10 shrink tube 28 thus causes an increased permeation.
  • a base element 11 of a lighting device 10 is shown in a schematic cross-sectional view.
  • the lighting device 10 has a sensor 45 which on a cap - in the Fig. 2 not shown further - is arranged.
  • the sensor 45 requires for its operation lines that are not shown, but certainly together with the connection cable 29 and the cable 23, both of which are explained in more detail below, be guided.
  • connection cable 29 which has a plug for connection to a power and / or data or signal source, is connected to the chamber 17 "'of the base element 11 to a cable 23.
  • the cable 23 may be guided laterally via an opening in the end caps or in the region of the base element 11.
  • the connecting cable 29 stands in contact with the cable 23 in the chamber 17 "'of the base element 11, so that the light-emitting diode 13, not shown here, can be supplied with current and / or data or signals by the cable 23 connected to it.
  • a light-conducting element 18 of a lighting device 10 is shown in a schematic cross-sectional view.
  • the light pipe element 18 is made of a polymer material.
  • the wall 19 of the light-conducting element 18 is at least partially translucent.
  • the light pipe element 18 is formed in cross section in the form of a segment of a circle.
  • end portions 30 having end portion inner surfaces 31 are provided.
  • the light-conducting element 18 is formed symmetrically with respect to a mirror plane, which runs perpendicularly in the plane of the drawing and halves the light-conducting element 18.
  • the thickness of the wall 19 of the light pipe element 18 is approximately equal at all points.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
EP18192543.9A 2017-09-25 2018-09-04 Dispositif d'éclairage Active EP3460321B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202017105803.4U DE202017105803U1 (de) 2017-09-25 2017-09-25 Leuchtvorrichtung

Publications (2)

Publication Number Publication Date
EP3460321A1 true EP3460321A1 (fr) 2019-03-27
EP3460321B1 EP3460321B1 (fr) 2020-10-21

Family

ID=63556135

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18192543.9A Active EP3460321B1 (fr) 2017-09-25 2018-09-04 Dispositif d'éclairage

Country Status (3)

Country Link
EP (1) EP3460321B1 (fr)
DE (1) DE202017105803U1 (fr)
RU (1) RU2018132445A (fr)

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CN111174148A (zh) * 2020-02-26 2020-05-19 武汉钟码科技有限公司 一种led灯头

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EP3816510A1 (fr) 2019-10-29 2021-05-05 ABB Switzerland Dispositif d'éclairage pour atmosphères explosives

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WO2010052538A1 (fr) * 2008-11-06 2010-05-14 Karl Mantinger Dispositif d’éclairage à led, notamment pour tunnels
WO2011098358A1 (fr) * 2010-02-15 2011-08-18 Osram Gesellschaft mit beschränkter Haftung Lampe à remplissage de gaz
WO2012105828A1 (fr) * 2011-01-14 2012-08-09 N.V. Nederlandsche Apparatenfabriek Nedap Armature d'éclairage pour environnements d'éclairage dans lesquels peut exister un danger d'explosion

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DE202012101571U1 (de) 2012-04-26 2013-04-29 Lichtline Gmbh Beleuchtungsmittel mit zumindest einer Lichtquelle
DE102013213767A1 (de) 2013-07-15 2015-01-15 Ridi Leuchten Gmbh Leuchte mit Leuchteinrichtung
DE102013215379A1 (de) * 2013-08-05 2015-02-05 Osram Gmbh Elektrische Lampe
DE102013017141B4 (de) * 2013-10-16 2016-03-17 Narva Lichtquellen Gmbh + Co. Kg Röhrenförmige LED-Lampe mit innenliegender, zylindrischer Sammellinse
JP6028177B1 (ja) * 2015-12-25 2016-11-16 株式会社野田スクリーン 光源装置

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Publication number Priority date Publication date Assignee Title
WO2010052538A1 (fr) * 2008-11-06 2010-05-14 Karl Mantinger Dispositif d’éclairage à led, notamment pour tunnels
WO2011098358A1 (fr) * 2010-02-15 2011-08-18 Osram Gesellschaft mit beschränkter Haftung Lampe à remplissage de gaz
WO2012105828A1 (fr) * 2011-01-14 2012-08-09 N.V. Nederlandsche Apparatenfabriek Nedap Armature d'éclairage pour environnements d'éclairage dans lesquels peut exister un danger d'explosion

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111174148A (zh) * 2020-02-26 2020-05-19 武汉钟码科技有限公司 一种led灯头

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RU2018132445A (ru) 2020-03-12
EP3460321B1 (fr) 2020-10-21
DE202017105803U1 (de) 2019-01-09

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