EP3218643B1 - Dispositif d'éclairage avec un élément de tension tendu et une bande à del - Google Patents

Dispositif d'éclairage avec un élément de tension tendu et une bande à del Download PDF

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Publication number
EP3218643B1
EP3218643B1 EP15781916.0A EP15781916A EP3218643B1 EP 3218643 B1 EP3218643 B1 EP 3218643B1 EP 15781916 A EP15781916 A EP 15781916A EP 3218643 B1 EP3218643 B1 EP 3218643B1
Authority
EP
European Patent Office
Prior art keywords
illumination device
led
clamping element
strip
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.)
Active
Application number
EP15781916.0A
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German (de)
English (en)
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EP3218643A1 (fr
Inventor
Ronny Kirschner
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Individual
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Individual
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Publication date
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Publication of EP3218643A1 publication Critical patent/EP3218643A1/fr
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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
    • F21V19/00—Fastening of light sources or lamp holders
    • F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
    • F21V19/003—Fastening of light source holders, e.g. of circuit boards or substrates holding light sources
    • F21V19/0035—Fastening of light source holders, e.g. of circuit boards or substrates holding light sources the fastening means being capable of simultaneously attaching of an other part, e.g. a housing portion or an optical component
    • 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
    • F21S4/10—Lighting devices or systems using a string or strip of light sources with light sources attached to loose electric cables, e.g. Christmas tree lights
    • 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
    • F21S4/22—Lighting devices or systems using a string or strip of light sources with light sources held by or within elongate supports flexible or deformable, e.g. into a curved shape
    • 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
    • F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
    • F21V21/005—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips for several lighting devices in an end-to-end arrangement, i.e. light tracks
    • 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
    • F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
    • F21V21/008—Suspending from a cable or suspension line
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/001—Arrangement of electric circuit elements in or on lighting devices the elements being electrical wires or cables
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • 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
    • 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 invention relates to a lighting device and a method for producing the lighting device.
  • LED strip is understood to mean a strip which has a plurality of LEDs (light emitting diodes).
  • the LEDs may have the same or different colors, ie emit light of the same or different wavelength.
  • the LEDs can be individually, in groups or jointly controllable.
  • the LEDs may be associated with control modules, wherein the LED band may have a control module or a plurality of control modules.
  • LED tapes have been glued directly onto walls, furniture or profiles.
  • the usually provided with an adhesive layer back of the LED strips can be used to attach the LED tape to the wall. Due to the attachment to the wall, however, the laying of the LED strip is subject to narrow limits with regard to the freedom of design when installing the illumination device. More design freedom can be achieved when the LED strip is tensioned in a room or outdoors. However, the tensioning of an LED tape is not possible or only over very short distances, since LED tapes tear under tension easily. In addition, LED strips heat up during operation and the heated LED strips are even less loadable by tensile stress.
  • the DE 20 2013 100 289 U1 discloses a lamp with a body contained in a screw base, which carries LEDs as a light source.
  • the LEDs are arranged on the body such that their radiation in a plane is normal to the axis of the screw base.
  • the US 8,449,145 B1 discloses a support device for light emitting diode modules, by means of which the light emitting diode modules can be attached to a fluorescent lamp.
  • a lighting device which contains an electrical circuit board in a light housing.
  • a plurality of light elements for example in the form of LEDs, are arranged on the light housing.
  • the light housing has a channel which is formed by two legs. By the legs, the lighting device without additional fasteners with a Carrier object are connected by being attached to the carrier object.
  • the DE 20 2014 004 353 U1 discloses a pipe clamp with an outwardly radiating LED in the base of the pipe clamp.
  • the disclosure DE 10 2009 007 430 A1 a light module, consisting of a light strip with a band-shaped flexible substrate, wherein at least on one side of the substrate, a semiconductor light source is applied.
  • a substrate is equipped with LEDs.
  • the substrate has at least one glass fiber composite layer.
  • the DE 10 2008 025 398 A1 discloses a protective cover having a base for fixing an LED tape and an under cover connectable, at least partially translucent cover, wherein the base and the cover form a space for receiving the LED tape.
  • the band-shaped pad can consist of a thin aluminum foil, of pure aluminum or of an aluminum composite material.
  • a door-opening warning lamp has been disclosed that has a plurality of chip-type light-emitting elements arranged on a flexible conductor track.
  • the WO 2014/096010 A1 discloses a light strip comprising at least a first group of light-emitting diodes and at least one further group of light-emitting diodes, wherein the light-emitting diodes of each group are distributed over the length of the light strip between opposite end regions and driven.
  • the LEDs are on one flexible carrier tape arranged in the form of a flexible printed circuit board.
  • the carrier tape has a reinforcing layer in the form of a metal strip or a fiber-reinforced plastic strip.
  • a band of light emitting diodes has become known in which a coating of the tape is such that the viewer does not see the LEDs when the tape is off.
  • the known lighting device has a carrier tape made of plastic laminate.
  • the LED tape is previously glued and tensioned onto a tensioning element, then the LED tape is released from the tensioning element in the tensioned state, since LED tapes and tear-resistant tensioning elements have different expansion coefficients.
  • the object of the present invention is therefore to provide an illumination device with an LED strip which, despite the known obstacles, can be produced in a significantly simple and cost-effective manner.
  • the object of the invention is thus achieved by a lighting device with a tensioned clamping element and a directly or indirectly connected to the clamping element LED strip having a plurality of arranged on a band body of the LED strip or formed LEDs, wherein the LED strip in the longitudinal direction of the illumination device has a lower tensile stress than the clamping element.
  • the tensioning element can first be tensioned and then the LED strip can be applied to the tensioning element.
  • the connection of LED tape and clamping element can be done in this case the end user.
  • the LED strip can be connected to the manufacturer of the lighting device with the tensioned tensioning element and the lighting device then relaxed and sold. The end user then tensions the lighting device with the same tension as the manufacturer in the manufacture of the lighting device.
  • the LED tape is glued directly to the clamping element.
  • the illumination device has a plurality of LED strips, which are connected by electrical lines, wherein the electrical lines are so flexibly arranged or formed in the longitudinal direction of the illumination device that they allow a relative movement of the LED strips in the longitudinal direction of the illumination device ,
  • the different coefficients of expansion of the LED strips and the clamping element can be compensated by means of the flexible electrical lines.
  • the LED strip or the LED bands is held in sections by a shrink tube on the clamping element.
  • at least a portion of the illumination device is provided with a shrink tube in the longitudinal direction of the illumination device, which has an electrical line. More preferably, a plurality of sections of the illumination device, which have electrical lines, provided with shrink tubing.
  • the tensioning element may be in the form of a wire, a cable or a cord.
  • the tensioning element is in the form of a carrier tape, i. formed in the form of a band-shaped clamping element.
  • the carrier tape can absorb particularly high tensile forces and is particularly well suited for connection to the LED strip due to its flat surface.
  • known tensioning devices for example threaded units and / or tensioning devices for securing luggage in the automotive sector or for tensioning a slackline, can be used for tensioning the carrier tape.
  • a particularly stable and inexpensive trained lighting device is achieved when the clamping element is formed in the form of a strapping.
  • Strapping tapes have also become known as "fastener tapes". They are used to include and stabilize packages. Due to their widespread use, strapping can be purchased at a particularly low cost as a piece of goods by the meter.
  • Another advantage of using a carrier tape in the form of a strapping band is that already a variety of tools of strapping band ends in the trade are available. Even layman easy-to-use tools for connecting strapping ends by means of clamps, sleeves, seals or welded joints are commercially available. As a result, end users can easily lay the lighting device itself and / or connect with another lighting device according to the invention and thereby expand.
  • the carrier tape may be at least partially, in particular completely, made of an electrically conductive material, in particular of metal, preferably of steel.
  • the LED tape can be supplied with electrical voltage via the carrier tape. Furthermore, the heat of the LED tape can be easily dissipated via the carrier tape.
  • the carrier tape may also be at least partially, in particular completely, made of plastic.
  • the lighting device can be made at the same time particularly easy, stable and inexpensive.
  • a particularly high tensile strength can be achieved by means of a carrier tape having glued plastic threads and / or a plastic fabric.
  • the carrier tape may be at least partially, in particular completely, formed from a textile material in order to be able to be laid in a particularly flexible manner.
  • the textile material may be woven to achieve high tensile strength.
  • the clamping element is designed in the form of a refractory textile tape with a fabric of fire protection class B1.
  • a first metal layer may be provided at least in sections between the carrier tape and the LED tape.
  • the Metal layer can dissipate the heat of the LED strip and used as a voltage source for the LED strip, in particular for individual sections of the LED strip. If the LED band is supplied with voltage only at its ends, a high electrical voltage drop occurs across the LED band due to the electrical resistance of the LED band. As a result, LEDs at the beginning of the LED strip shine brighter than at the end of the LED strip. The brightness drop is usually clearly visible after a few meters. By contrast, the LEDs of the LED strip can always be supplied with approximately the same high voltage by the metal layer having a low resistance, whereby the luminous intensity of the LEDs is homogenized.
  • a second metal layer is preferably provided at least in sections.
  • the second metal layer may be provided alternatively or in addition to the first metal layer.
  • the plastic layer between the LED strip and the second metal layer serves as insulation. If the second metal layer is provided in addition to the first metal layer, then the first metal layer can serve as a current lead for individual LEDs or individual sections of the LED strip and the second metal layer as a current lead for individual LEDs or individual sections of the LED strip.
  • the first metal layer can be used as a current drain and the second metal layer as a power supply. In the case of AC voltage, both metal layers can function both as a current supply and as a current drain.
  • the illumination device may additionally comprise at least one further metal layer, in particular a plurality of further metal layers, for the transmission of data and / or control signals.
  • the further metal layer or the further metal layers can / can be used as part of individual circuits for switching one or more segments of the Lighting device serve. Each segment can have one or more LEDs.
  • a carrier tape having a first and / or second metal layer can be produced in a particularly cost-effective manner by using a metallized plastic strapping tape as the carrier tape.
  • Metallized, in particular galvanized, plastic strapping bands have a high tensile strength and can be purchased by the meter in the trade.
  • the LED tape can be soldered directly on the metallized side of the plastic strapping.
  • the carrier tape may at least partially, in particular completely, have a multi-core ribbon cable.
  • the illumination device can be produced at least partially, in particular completely, by laser direct structuring (LDS). Such a lighting device is also referred to as MID (Molded Interconnect Device). Laser direct structuring opens up a great deal of design freedom in the manufacture of the illumination device.
  • LDS laser direct structuring
  • the illumination device preferably has an at least partially translucent housing.
  • the housing can thereby serve as a diffuser.
  • the colors of individual LEDs can therefore already be mixed in the illumination device.
  • a protection of the LED strip and a homogeneous light emission can be achieved by the housing.
  • the housing is preferably formed from at least partially translucent plastic. Especially Preferably, the housing is completely formed of translucent plastic.
  • the LED tape and the carrier tape can be at least partially encapsulated or encapsulated.
  • the LED tape and the carrier tape is completely overmoulded or potted.
  • the encapsulation or potting can be done by an extruder with inserted LED tape and carrier tape.
  • the "encapsulation” or “Verg cordung” represents a housing in the context of the present invention.
  • the housing may have in cross-section at least one arm portion which engages behind the LED tape and the carrier tape at least in sections.
  • the arm portion may be formed flexible to allow a locking of the housing on the carrier tape.
  • two, in particular flexibly formed, arm portions are provided on the housing, so that the carrier tape and LED tape are gripped on two sides.
  • the lighting device can be made very stable overall.
  • the housing may have at least two parts extending in the longitudinal direction of the illumination device. The parts can be latched together.
  • the illumination device can have at least one support, in particular two supports which are arranged on the end of the carrier strip and viewed in the longitudinal direction of the illumination device.
  • the carrier tape is preferably connectable with these supports clamped.
  • the supports may each have a slot and / or a bore in which the carrier tape can be clamped or inserted.
  • the lighting device may further comprise an intermediate support for fixing the lighting device to a wall, a ceiling or the like, wherein the intermediate support between the ends of the carrier tape is arranged on the carrier tape.
  • the intermediate support may have a slot for receiving the carrier tape.
  • the intermediate support may have a magnet for holding magnetic or magnetizable parts of the illumination device.
  • the LED strip can be directly connected to a carrier element of the illumination device, wherein the carrier element is connected to the clamping element and wherein the carrier element in the longitudinal direction of the illumination device is stiffer than the clamping element.
  • the carrier element is preferably designed in the form of a rail.
  • the carrier element is preferably made of metal, in particular of aluminum.
  • the carrier element is preferably at least one end, preferably - seen in the longitudinal direction of the illumination device - both ends, connected to a clamping element and fixed between two breakpoints. Due to the strength of the carrier element, it is stretched only insignificantly during the tensioning of the illumination device in the longitudinal direction of the carrier element, so that the LED strip can be fastened or fastened easily on the carrier element.
  • the LED strip can be connected directly to the clamping element in this embodiment of the lighting device.
  • the LED tape can be connected to the clamping element before or after the tensioning of the clamping element.
  • the LED strip is in the variant discussed the lighting device according to the invention is not directly connected to the clamping element.
  • the LED band can be supplied with voltage via a supply band of the illumination device, wherein the supply band has at least one electrical line and extends at least in sections parallel to the clamping element.
  • a supply tape is particularly well suited for supplying the LED tape with voltage and control data when the LED tape is attached to a support member.
  • the object according to the invention is finally achieved by a method for producing a previously described illumination device in which the LED strip is connected to the tensioning element and / or the carrier element, wherein the LED strip at the time of the connection has a lower tensile stress than the tensioning element or - when a carrier element is used - as the carrier element.
  • the LED strip can be connected to the clamping element after tensioning the clamping element. Subsequently, the illumination device for transporting and trading the illumination device can be relaxed.
  • the lighting device is particularly easy to install when the clamping element is connected via a carrier with the LED strip.
  • the carrier is preferably formed in one piece. More preferably, the carrier is formed of plastic. The carrier can be produced particularly easily by injection molding.
  • LED strips available as LED strips usually have a back adhesive surface.
  • the LED strip is therefore preferably bonded in a simple manner using this adhesive surface at least partially back with the carrier.
  • the carrier may have a recess in which the clamping element is received.
  • the carrier may have a through-hole, in which the tensioning element is threaded in the form of a cable, a wire or rope. This allows a particularly flexible adaptation of the lighting device to the local conditions.
  • the carrier may have, in particular in the region of the recess, a projection which engages behind the clamping element at least in sections.
  • the clamping element can be latched or clipped on the carrier.
  • the projection may be designed to be flexible at least in sections.
  • the carrier preferably has a trapezoidal cross section transversely to the longitudinal direction of the illumination device. As a result, the LED strip can be attached particularly easily to the carrier.
  • the support is preferably made of one piece and / or solid for reasons of stability.
  • the carrier is particularly stable and balanced fastened to the clamping element when the carrier is mirror-symmetrical to its parallel to the longitudinal direction or along the longitudinal axis of the lighting device extending center plane.
  • the carrier may have an LED tape receptacle by which the LED tape is held on the carrier.
  • the LED strip is preferably held at least partially positively on the carrier.
  • the LED tape is latched or clipped at least in sections on the carrier.
  • the carrier may further comprise a recess for receiving at least one electronic component of the illumination device for controlling the LED strip.
  • the illumination device may have a plurality of LED strips, which are fastened in particular to transversely formed outer surfaces of the carrier. As a result, the illumination device can emit light in different directions.
  • the lighting device may have a plurality of carriers in order to connect the LED strip to the clamping element at several points.
  • the carriers are preferably formed identically to save on manufacturing costs.
  • the illumination device can furthermore have an electronic component for controlling at least one LED band, wherein the electronic component is arranged between two carriers.
  • the lighting device may have a plurality of clamping elements.
  • the illumination device may comprise two at least partially electrically conductive clamping elements, such as cables or wires, in order to supply the LED strip with electrical voltage and at least partially dissipate the heat of the LED strip.
  • the two cables can be connected to the LED strip at several sections of the illumination device in order to supply voltage to several sections of the LED strip.
  • the illumination device may additionally comprise at least one further at least partially electrically conductive clamping element, in particular a plurality of further at least sectionally electrically conductive clamping elements for transmitting data and / or control signals.
  • the further clamping element or the other clamping elements can / can be used as part of individual circuits for switching serve one or more segments of the lighting device. Each segment can have one or more LEDs.
  • Fig. 1 shows a first illumination device 10.
  • the first illumination device 10 has an LED strip 12.
  • the LED strip 12 comprises 5 LEDs 14a-14e, which are arranged on a band body 15 of the LED strip 12.
  • the LEDs 14a-14e are controlled by non-referenced control modules of the LED tape 12.
  • the LEDs 14a-14e are supplied via electrical lines, not shown, of the LED strip 12 with electrical voltage.
  • the LEDs 14a-14e are disposed on LED tape sections 16a-16c.
  • the LED tape sections 16a-16c consist essentially of a less tear-resistant flexible printed circuit board material.
  • the printed circuit board material comprises copper layers and insulating carrier material.
  • the LED tape sections 16a-16c are connected via interfaces 18a, 18b.
  • the interfaces 18a, 18b have solder bridges 20a-20h. Alternatively or in addition to the solder bridges, the interfaces 18a, 18b may be pressed. Under tensile stress, these interfaces 18 a, 18 b represent weak points of the LED strip 12, at which the LED strip 12 can tear or tear off.
  • Fig. 1 For the sake of representability is in Fig. 1 only a short first illumination device 10 is shown in high magnification.
  • the lighting devices used can a Have a length of several meters and be freely stretched over this length. As a result, the tensile forces acting on the lighting devices increase drastically.
  • the first illumination device 10 therefore has a one-piece carrier strip 22 made of metal.
  • the carrier tape 22 is a strapping tape, ie, a tape typically used for wrapping packages.
  • the first illumination device 10 - viewed in its longitudinal direction - can be tensioned at the end between two supports (not shown).
  • the carrier tape 22 By the carrier tape 22, the first illumination device 10 while the tensile forces occurring during clamping, in Fig. 1 by arrows 24a, 24b, withstand.
  • the first illumination device 14 can be made easy, inexpensive and stable.
  • the carrier tape 22, in particular by the metallic formation of the carrier tape 22, serves as a heat sink for the LED tape 12.
  • Fig. 2a shows a second illumination device 26.
  • the second illumination device 26 is in Fig. 2a shown in a partial exploded view in the vertical direction in order to be able to represent the individual layers of the second illumination device 26 more clearly.
  • the individual layers of the second illumination device 26 are connected to each other, as shown in the sectional view Fig. 2b is removable.
  • the second illumination device 26 has according to Fig. 2a an LED tape 28 corresponding to the LED tape 22 according to Fig. 1 equivalent.
  • the second illumination device 26 furthermore has a carrier strip 30 which corresponds to the carrier strip 22 Fig. 1 equivalent.
  • the carrier tape 30 is not formed of metal, but of polyester.
  • first metal layer 32 and partially a plastic layer 34 is partially arranged.
  • second metal layer 36 is arranged on the side facing away from the LED tape 28 side of the carrier tape 30.
  • the first metal layer 32 and the second metal layer 36 may each be in the form of a film, in particular an adhesive film.
  • the first metal layer 32 may be in the form of a metal coating of the LED tape 28 or the carrier tape 30.
  • the second metal layer 36 may be in the form of a metal coating of the carrier tape 30.
  • the first metal layer 32 and / or the second metal layer 36 are preferably in the form of a metallic strapping band.
  • the second illumination device 30 can thus be manufactured in a particularly cost-effective manner.
  • the first metal layer 32 and the second metal layer 36 are used for cooling and powering the LED strip 28, for example the LEDs 38a, 38b.
  • Fig. 2b shows the second illumination device 26 in the region of the LED 38a (see. Fig. 2a ) in cross section. For clarity, only metallic areas are shown hatched.
  • Fig. 6b For example, the electrical connection between the LED 38a and the metal layers 32, 36 can be seen.
  • the LED 38a has a base 42.
  • the base 42 is electrically connected to the first metal layer 32 via a first metal interconnection 44.
  • the base 42 is electrically connected via a second metal connection 46 to the second metal layer 36.
  • the other LEDs of the LED strip 28, such as the LED 38b (see Fig. 2a ) electrically with the Metal layers 32, 36 are connected.
  • the metal layers 32, 36 thereby enable a uniform voltage supply of the LED strip 28 and consequently a homogeneous intensity of the light emitted by the LEDs (for example the LEDs 38a, 38b).
  • the carrier tape 30 made of plastic serves as a "natural" insulator between the metal layers 32, 36th
  • the LED strip 28, the metal layers 32, 36, the plastic layer 34 and the carrier tape 30 may be glued together at least partially. Furthermore, the LED tape 28, the carrier tape 30, the metal layers 32, 36 and / or the plastic layer 34 may be made in MID technology.
  • Fig. 3a shows a third illumination device 48.
  • the third illumination device 48 corresponds to the first illumination device 10 according to FIG Fig. 1 , However, the in Fig. 3a shown third illumination device 48, a housing 50.
  • the housing 50 is formed of plastic and extends in the longitudinal direction of the third illumination device 48.
  • the third illumination device 48 has an LED strip 52 which is arranged on a carrier tape 54. The LED strip 48 is completely covered by the housing 50 on its upper side facing away from the carrier tape 54.
  • Fig. 3b shows the front side of the third illumination device 48.
  • the unitary housing 50 has arm portions 56a, 56b which, together with protrusions 58a, 58b extending in the longitudinal direction of the housing 50, secure the housing 50 to the carrier tape 54.
  • the arm portions 56a, 56b are elastically or resiliently designed to press the carrier tape 54 against the projections 58a, 58b and thereby to achieve a play-free attachment of the housing 50 on the carrier tape 54.
  • the projections 58a, 58b can also be arranged above the LED strip 52, so that both the carrier strip 54 and the LED strip 52 are clamped between the arm section 56a and the projection 58a and the arm section 56b and the projection 58b.
  • the housing 50 is formed at least on its side facing the LED band 52 top 60 at least partially translucent.
  • the upper side 60 may be tinted or colored to color the light emitted in the direction of the arrows 62a-62c.
  • the top 60 may be textured and / or tarnished to act as a diffuser.
  • the housing 50 may also be connected to the second illumination device 26 according to FIG Fig. 2a, 2b be attached.
  • Fig. 4 shows a fourth illumination device 64.
  • the fourth illumination device 64 substantially corresponds to the third illumination device 48 according to FIG Fig. 3a, 3b ,
  • the fourth illumination device 64 has a carrier band 66.
  • a first LED tape 68 At the top of the carrier tape 66, a first LED tape 68, on the underside of the carrier tape 66, a second LED tape 70 is arranged.
  • the fourth illumination device may have only one LED band 68/70.
  • the fourth illumination device 64 has a housing 72.
  • the housing 72 is formed in two parts.
  • An upper part 74 of the housing 72 and a lower part 76 of the housing 72 are each integrally formed of plastic.
  • the upper part 74 is pressed firmly with the carrier tape 66.
  • the upper part 74 has recesses 78a, 78b. Hook-like projections 80a, 80b of the lower part 76 engage in the recesses 78a, 78b.
  • the lower part 76 can be non-positively and at least partially positively connected to the upper part 74.
  • Fig. 5a shows a fifth illumination device 110.
  • the fifth illumination device 110 has a clamping element 112, which is indirectly connected via a carrier 114 made of plastic with an LED strip 116.
  • the carrier 114 is manufactured by injection molding.
  • the clamping element 112 is in the form of a wire with a circular cross-section.
  • Fig. 5b shows the fifth lighting device 110 from below.
  • the LED ribbon 116 has three LED modules 118a-118c at the front.
  • Each LED module 118a-118c comprises three LEDs each in the colors red, green and blue.
  • the LED modules 118a-118c can be individually controlled and thereby radiate a total of light of any color. Alternatively or additionally, each individual LED of the LED modules 118a-118c can emit light of any desired color.
  • the LED tape 116 is in Fig. 5a and Fig. 5b only partially shown in the longitudinal direction.
  • the LED strip 116 may have a length of several meters and be freely stretched over this length.
  • very high tensile forces act on the fifth illumination device 110.
  • the LED strip 116 itself could not absorb these tensile forces, since it consists essentially of a less tear-resistant flexible printed circuit board material.
  • the printed circuit board material comprises copper layers and insulating carrier material.
  • the LED tape 116 may include a plurality of tape sections (not shown) connected via interfaces.
  • the band sections can be connected via solder bridges or pressings. Under tensile stress such Interfaces further weak points at which the LED strip 116 can tear under tensile stress in the longitudinal direction.
  • the fifth illumination device 110 therefore comprises the tensioning element 112, which in FIG Fig. 5a and Fig. 5b also shown only in sections. Between the clamping element 112 and the LED strip 116 a plurality of identically formed carriers are provided, of which in Fig. 5a and Fig. 5b the carrier 114 is shown. The LED tape 116 is bonded to the lower outer surface of the carrier 114. For this purpose, a back-side adhesive surface of the LED strip 116 is used.
  • Fig. 6a shows a sixth illumination device 120, the fifth illumination device 110 according to Fig. 5a and Fig. 5b equivalent.
  • the second illumination device 120 has a first carrier 122 and a second carrier 124.
  • a clamping element 126 is formed in the form of a cable.
  • the cable comprises an electrical conductor 128, preferably made of copper, which is encased by an insulator 130, preferably made of plastic.
  • the attachment of the carrier 122, 124 takes place by means of recesses 132, 134 which are open on one side.
  • the recesses 132, 134 have projections 136, 138, 140, 142 on their opening side.
  • the projections 136, 138, 140, 142 are resilient due to their geometry.
  • the clamping element 126 can thereby be introduced under pressure into the recesses 132, 134. In other words, there is a latching connection between the recesses 132, 134 and the clamping element 126th
  • Fig. 6b shows the sixth illumination device 120 "from below".
  • the clamping element 126 is tensioned indoors or outdoors.
  • the carriers 122, 124 are clipped onto the clamping element 126.
  • a film protecting the adhesive layer of an LED tape 144 (not shown) is pulled off at least in sections and the LED tape 144 is adhesively bonded to the underside of the supports 122, 124.
  • Fig. 7a shows a seventh illumination device 146.
  • the seventh illumination device 146 corresponds to the sixth illumination device 120 according to FIG Fig. 6a and Fig. 6b , However, an LED strip 148 is not glued to carrier 150, 152, but partially clamped in the carrier 150, 152.
  • Fig. 7b shows a bottom view of the seventh illumination device 146.
  • the carriers 150, 152 have hook-like projections 154, 156, 158, 160.
  • the LED tape 148 is partially covered by these projections 154, 156, 158, 160.
  • the LED strip 148 can be reversibly attached to the carriers 150, 152.
  • the LED tape 148 and the carriers 150, 152 can be reversibly connected and disconnected at various positions as often as desired.
  • the LED tape 148 can be easily replaced thereby.
  • Fig. 8a shows an eighth illumination device 162.
  • the eighth illumination device 162 corresponds to the seventh illumination device 146 according to FIGS Fig. 7a and Fig. 7b , However, carriers 164, 166 have attachment projections 168, 170, 172, 174.
  • Fig. 8b shows the eighth illumination device 162 according to Fig. 8a with a housing 176.
  • the housing 176 is on the mounting projections 168, 170, 172, 174 (see Fig. 4a ) postponed or clipped on.
  • Fig. 8c shows the eighth illumination device 162 according to Fig. 8b in a front view.
  • the housing 176 is at its an LED strip 178 facing bottom 180 is formed at least partially translucent.
  • the bottom 180 may be colored to color the light emitted in the direction of the arrows 182, 184, 186.
  • the bottom 180 may be textured and / or tarnished to act as a diffuser.
  • Fig. 9a shows a ninth illumination device 188.
  • the ninth illumination device 188 corresponds to the sixth illumination device 120 according to FIG Fig. 6a and Fig. 6b ,
  • the geometry of straps 190, 192 is trapezoidal in shape such that a tension member 194 is attached to the long base side of the trapezoid.
  • the carriers 190, 192 have a first LED band 196.
  • Fig. 9b shows a second perspective view of the ninth illumination device 188.
  • the ninth illumination device 188 has further LED strips 198, 200.
  • the LED strips 196, 198, 200 are on transversely formed outer surfaces of the carrier 190, 192 (see Fig. 9a ), in particular glued.
  • the ninth illumination device 188 emit light in different spatial directions.
  • Fig. 9a and Fig. 9b uncovered top can have another LED band (not shown) to allow light to be emitted in all spatial directions transverse to the longitudinal direction of the ninth illumination device 188.
  • Fig. 10a shows a tenth illumination device 202.
  • the tenth illumination device 202 corresponds to the sixth illumination device 120 according to FIG Fig. 6a and Fig. 6b , However, the tenth illumination device 202 has two clamping elements 204, 206.
  • the clamping elements 204, 206 are connected via electrical conductors 208, 210 with an LED strip 212.
  • the clamping elements 204, 206 can be used to power a LED strip 212.
  • Fig. 10b shows the tenth illuminator 202 from a bottom view.
  • the tenth illuminator 202 has a plurality of LEDs 214a-214j.
  • the LEDs 214a-214j are white LEDs.
  • the sixth illumination device 202 is therefore used in the form of a "conventional" room lighting.
  • FIG. 11 11 shows a schematic side view of an eleventh illumination device 300.
  • the eleventh illumination device 300 has breakpoints 302, 304 in the form of hooks which are fastened to walls 306, 308. Between the holding points 302, 304, a clamping element 310 is stretched in the form of a carrier tape.
  • An LED strip 314 is attached directly to the clamping element 310 via an adhesive layer 312. The LED strip 314 was applied to the clamping element 310 in the tensioned state of the clamping element 310.
  • the LED strip 314 therefore has a lower tensile stress in the longitudinal direction of the eleventh illumination device 300 in the tensioned state of the eleventh illumination device 300 than the tension element 310.
  • the longitudinal direction of the eleventh illumination device 300 is shown in FIG FIG.
  • the LED strip 314 Due to the lower tensile stress in the LED strip 314, the LED strip 314 is not torn during the tensioning of the eleventh illumination device 300, on the one hand, and adheres to the tensioning element 310 well and without separation.
  • FIGS. 12a, 12b and 12c show a detail of a plan view of a twelfth lighting device 318 during their manufacture.
  • the twelfth illumination device 318 a first LED strip 320 and a second LED strip 322 on.
  • the LED strips 320, 322 are electrically and mechanically connected by electrical lines 324, 326.
  • the LED strips 320, 322 are directly connected to a clamping element 328 in the form of a carrier tape.
  • the electrical lines 324, 326 are curved. More specifically, in the non-tensioned state of the twelfth illumination device 318, the electrical lines 324, 326 each have a cable loop 330, 332.
  • FIG. 12b It can be seen that the LED strip 322 and the clamping element 328 can be pushed over with a shrink tube 334 of the twelfth illumination device 318.
  • the shrink tube 334 is selected so that it can be pulled with a clearance fit over the clamping element 328 with the LED strip 322 arranged thereon.
  • FIG. 12c is the shrink tube 334 in the longitudinal direction of the twelfth illumination device 318 via the electrical lines 324, 326 (see FIG. 12a ).
  • the shrink tube 334 is heated so that it shrinks and reinforces the connection of the LED bands 320, 322 with the clamping element 328 and at the same time the electrical lines 330, 332 (see FIG. 12a ) obscured.
  • FIG. 13a 13 shows a perspective view of a thirteenth illumination device 336.
  • the thirteenth illumination device 336 has a carrier element 338 to which an LED strip 340 is attached directly, in particular glued.
  • the carrier element 338 is designed in the form of a rail.
  • FIG. 13b shows a plan view of the thirteenth illumination device 336.
  • the LED ribbon 340 is electrically connected to a supply band 342.
  • the LED strip 340 receives both its supply voltage and electrical signals for controlling the LED strip 340 via the supply strip 342.
  • FIG. 13c shows a side view of the thirteenth illumination device 336.
  • the carrier element 338 is connected to a clamping element 344 in the form of a carrier tape.
  • the carrier element 338 is tensioned by the clamping element 344 between two holding points (not shown).
  • the supply belt 342 runs at least in sections parallel to the tensioning element 344.
  • the supply belt 342 is glued onto the tensioning element 344 before or after the tensioning of the thirteenth illumination device 336.
  • the tensioning element 344 conceals the supply belt 342 on the rear side of the tensioning element 344.
  • the LED belt 340 (see FIG. 13a ) is not directly connected to the clamping element 344.
  • Fig. 14a shows a fourteenth illumination device 346 with an LED strip 348 which is mounted on a clamping element 350 in the form of a carrier tape.
  • the clamping element 350 can be fastened to a wall via a wall holder 352.
  • the wall holder 352 has two tensioning wires 354a, 354b, which form a triangle with the wall. Alternatively or in addition to the tension wires tension cables can be provided.
  • the wall bracket 352 further includes a threaded unit 356 for tensioning the fourteenth illumination device 346.
  • the wall holder 352 is connected to a power supply 358.
  • Fig. 14b shows the power supply 358.
  • the power supply 358 a holding plate 360 for receiving and fixing the clamping member 350 and a cable 362 for supplying power to the LED strip 348 (see Fig. 14a ).
  • Fig. 14c shows an alternative wall holder 364.
  • the wall holder 364 has no threaded unit 356 (see Fig. 14a ) on.
  • Fig. 14d shows a voltage supply 366.
  • the power supply 366 may alternatively or in addition to the power supply 358 (see Fig. 14a ) at the fourteenth illumination device 346 (see Fig. 14a ) be provided.
  • the power supply 366 has a cable 368 for the electrical supply of the LED strip 348 (see Fig. 14a ) from a ceiling.
  • the invention relates to a tensioned between at least two support points lighting device.
  • the lighting device has a clamping element, which is stretched between the support points with high tensile stress.
  • the illumination device has an LED strip, which is fastened with less tension on the clamping element.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)

Claims (7)

  1. Dispositif d'éclairage (346) comportant un élément de tension tendu (350) et une bande de LED (348) directement reliée à l'élément de tension (350), qui présente plusieurs LED disposées ou formées sur un corps de bande de la bande de LED, la bande de LED (348) présentant une contrainte de traction plus faible dans la direction longitudinale du dispositif d'éclairage (346) que l'élément de tension (350), l'élément de tension (350) étant réalisé sous la forme d'une bande de support et l'élément de tension (350) pouvant être fixé à un mur par l'intermédiaire d'un support mural (352), caractérisé en ce que le support mural (352) présente deux fils de tension (354a, 354b) et/ou des câbles de tension servant à former un triangle avec le mur, et en ce que le dispositif d'éclairage (346) présente en outre une plaque de retenue (360) sur laquelle l'élément de tension (350) est disposé avec une boucle.
  2. Dispositif d'éclairage selon la revendication 1, dans lequel la bande de LED est directement collée avec l'élément de tension.
  3. Dispositif d'éclairage selon la revendication 1 ou 2, lequel dispositif d'éclairage présente plusieurs bandes de LED reliées par des lignes électriques, les lignes électriques étant disposées ou formées dans la direction longitudinale du dispositif d'éclairage d'une manière suffisamment flexible pour permettre un mouvement relatif des bandes de LED dans la direction longitudinale du dispositif d'éclairage.
  4. Dispositif d'éclairage selon l'une des revendications précédentes, dans lequel la bande de LED est maintenue dans certaines zones sur l'élément de serrage par un manchon thermorétractable.
  5. Dispositif d'éclairage selon l'une des revendications précédentes, dans lequel l'élément de tension est réalisé sous la forme d'une bande de cerclage, en particulier sous la forme d'une bande de cerclage en matière plastique.
  6. Dispositif d'éclairage selon l'une des revendications précédentes, dans lequel l'élément de tension est réalisé sous la forme d'une bande textile, en particulier d'une bande textile résistante au feu.
  7. Procédé de fabrication d'un dispositif d'éclairage selon l'une des revendications précédentes, dans lequel la bande de LED est reliée à l'élément de tension, la bande de LED présentant, au moment de la liaison, une contrainte de traction inférieure à celle de l'élément de tension ou de l'élément de support.
EP15781916.0A 2014-11-10 2015-10-19 Dispositif d'éclairage avec un élément de tension tendu et une bande à del Active EP3218643B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014222861.1A DE102014222861A1 (de) 2014-11-10 2014-11-10 Beleuchtungseinrichtung mit einem gespannten Spannelement und einem LED-Band
PCT/EP2015/074169 WO2016074886A1 (fr) 2014-11-10 2015-10-19 Système d'éclairage pourvu d'un élément de tension tendu et une bande de del

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EP3218643A1 EP3218643A1 (fr) 2017-09-20
EP3218643B1 true EP3218643B1 (fr) 2018-10-10

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EP15781916.0A Active EP3218643B1 (fr) 2014-11-10 2015-10-19 Dispositif d'éclairage avec un élément de tension tendu et une bande à del

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EP (1) EP3218643B1 (fr)
DE (1) DE102014222861A1 (fr)
WO (1) WO2016074886A1 (fr)

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DE102014222861A1 (de) 2016-05-12
WO2016074886A1 (fr) 2016-05-19

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