EP3211296B1 - Circuit imprimé à del inversé - Google Patents

Circuit imprimé à del inversé Download PDF

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Publication number
EP3211296B1
EP3211296B1 EP17156507.0A EP17156507A EP3211296B1 EP 3211296 B1 EP3211296 B1 EP 3211296B1 EP 17156507 A EP17156507 A EP 17156507A EP 3211296 B1 EP3211296 B1 EP 3211296B1
Authority
EP
European Patent Office
Prior art keywords
circuit board
light
holder
light sources
lamp
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
EP17156507.0A
Other languages
German (de)
English (en)
Other versions
EP3211296A1 (fr
Inventor
Helmut Schaub
Mohammed Hadeil
Bernd Ganzer
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.)
Trilux GmbH and Co KG
Original Assignee
Trilux GmbH and Co KG
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 Trilux GmbH and Co KG filed Critical Trilux GmbH and Co KG
Publication of EP3211296A1 publication Critical patent/EP3211296A1/fr
Application granted granted Critical
Publication of EP3211296B1 publication Critical patent/EP3211296B1/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
    • F21V5/00—Refractors for light sources
    • F21V5/007—Array of lenses or refractors for a cluster of light sources, e.g. for arrangement of multiple light sources in one plane
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S4/00—Lighting devices or systems using a string or strip of light sources
    • F21S4/20—Lighting devices or systems using a string or strip of light sources with light sources held by or within elongate supports
    • F21S4/28—Lighting devices or systems using a string or strip of light sources with light sources held by or within elongate supports rigid, e.g. LED bars
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/003—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array
    • F21V23/004—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array arranged on a substrate, e.g. a printed circuit board
    • F21V23/005—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array arranged on a substrate, e.g. a printed circuit board the substrate is supporting also the light source
    • 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 lamp with a printed circuit board and a carrier according to the preamble of claim 1.
  • Luminaires of the generic type comprise a carrier which carries essential elements of the luminaire, such as, for example, a printed circuit board and light sources arranged thereon, as well as a cover element which forms an optical closure for the luminaire.
  • the printed circuit board is mostly designed as a circuit board which has conductor tracks and on one side of which light sources, mostly LEDs, are arranged.
  • the carrier usually has a U-shaped cross section with a bottom section and two side sections and extends perpendicular to the cross section over a considerable length, for example over at least ten times the width of the U-shaped cross section.
  • the circuit board is placed and fixed on the base section of the carrier, the light sources being arranged on the side of the circuit board facing away from the base section so that the light sources can emit light on the open side of the U.
  • This open side is mostly closed by a cover element which is particularly optically effective, ie is designed with a lens effect to ensure a directional emission characteristic of the lamp.
  • the carrier in the generic type is usually made as a shaped sheet metal part made of metal so that it has the necessary stability.
  • the explained construction of generic lights requires a complicated production and a high space requirement within the carrier. This is because further components, in particular electrical supply lines, must be arranged on the side of the printed circuit card facing the base section, this arrangement being such that these additional components do not cover the light sources on the side of the printed circuit board facing away from the base section of the carrier and thus the Do not impair light emission.
  • Conventional luminaires therefore usually have a complicated base body structure within the carrier, to which the circuit board and the other components of the luminaire are attached.
  • an LED module for mounting on a flat support element which is designed in particular as a facade element, which has a housing with a light emitting element in which LEDs are arranged, the housing of the LED module being fastened to the flat support element can that its light-emitting element dips into a recess of the carrier element.
  • a lighting device integrated in a box is known in which an LED board is mounted with its rear side on an inner wall of the box, a flat optical element being arranged on the front of the LED board and being held on the box by means of a holding element, so that the LEDs emit light through the optical element into the interior of the box.
  • LED modules are disclosed in which an LED board is attached to the base of a module housing, this floor according to US 2011/010051 A1 is designed as a heat sink, wherein a cover with a U-shaped cross-section is attached to the bottom of the module housing and this cover has openings to which the LEDs of the boards are aligned, with an intermediate layer being arranged between the LED board and the cover, which extends between the LEDs and their respective associated openings in the cover.
  • the present invention is based on the object of providing a luminaire which can be produced as simply and inexpensively as possible and which in particular at least partially eliminates at least one of the above-mentioned problems of conventional luminaires. Furthermore, the invention is based on the object of providing a method for producing a lamp by means of which the lamp can be produced as simply and inexpensively as possible and in particular at least one of the above-mentioned problems in conventional lamps is at least partially eliminated.
  • the luminaire comprises a printed circuit board and a carrier, the carrier having a U-shaped cross section with a bottom section and two side sections.
  • the printed circuit card has a flat luminous side on which a plurality of light sources, in particular LEDs, are arranged in a light source arrangement, the printed circuit card is fixed in a fixing position on the carrier and is arranged on a flat section which is formed by the bottom section, an inner side of the carrier, and wherein on a side of the printed circuit board facing away from the lighting side in the carrier, electrical supply lines as further components of the lamp are arranged.
  • Corresponding holding elements can be provided for this purpose, for example rivet, locking or screw elements and / or adhesives.
  • the circuit card can be designed, for example, as a conventional circuit board with conductor tracks on which light sources, in particular LEDs, are arranged.
  • the printed circuit card can be designed in the manner of a plate with a small height in a first spatial direction and a significantly greater extent, in particular in each case at least twenty times greater extent in the two other spatial directions.
  • the printed circuit card can thus generally have a considerable two-dimensional extension perpendicular to its height, the printed circuit card having two sides with the considerable two-dimensional extension, one of the two sides being designed as the luminous side.
  • the printed circuit card also has additional light sources on the side opposite the luminous side with the considerable two-dimensional extension.
  • the printed circuit card points with its luminous side towards the flat section of the carrier.
  • the printed circuit card is thus held on the carrier via appropriately provided holding elements in such a way that its luminous side faces the flat section of the carrier and thus does not point away from the carrier for emitting light away from the carrier but rather toward the inside of the carrier.
  • the flat section has a leadthrough arrangement with at least one leadthrough.
  • the light source arrangement and the lead-through arrangement correspond to one another in such a way that one Majority of the light sources, each light source is arranged in a respective one of the at least one passage of the lead-through arrangement for radiating light away from an outside of the carrier.
  • the implementations lead from the Inside to outside of the wearer.
  • the leadthrough arrangement can comprise one or more leadthroughs.
  • the leadthrough arrangement comprises only one leadthrough, the majority of the light sources are arranged in this leadthrough. If the leadthrough arrangement comprises several leadthroughs, then these are arranged in relation to one another in the leadthrough arrangement and aligned with the light sources in such a way that the majority of the light sources are each arranged in one of these leadthroughs.
  • a plurality of light sources which differ from one another in terms of their light color, are particularly preferably arranged in at least one of the at least one bushings.
  • the luminaire according to the invention can thus be manufactured in a very simple, inexpensive and robust manner.
  • the circuit card can be placed on the inside of the carrier, while the light sources are arranged on their luminous side in the feedthroughs of the carrier so that the light sources can emit light on the outside of the carrier.
  • this makes it possible to fix the printed circuit card on the inside of the carrier in a particularly simple manner, with the printed circuit card lying directly or indirectly against the carrier with a substantial proportion of the area of its luminous side, particularly in the fixing position.
  • the luminous side of the printed circuit card is in direct contact with the carrier; in the case of indirect contact, the luminous side of the printed circuit board is in contact with an additional element which is then in contact with the carrier.
  • additional components, such as supply lines, for example, can be placed in the carrier in a simple manner on the side of the circuit card facing away from the luminous side are arranged without complex fixing elements having to be provided in the carrier for this purpose. This is because the design of the lamp according to the invention ensures that the light sources which are arranged in the feedthroughs in the carrier and can thus emit directly to the outside cannot be covered by other components of the lamp.
  • a preferably one-piece electrical insulation layer runs in sections, in particular over its entire flat extension or over sections of its flat extension, between the printed circuit card and the carrier to prevent electrical contact between the printed circuit card and the carrier.
  • the provision of the insulation layer can be particularly advantageous because it reliably prevents electrical contact between the printed circuit board, which carries current per se for supplying the light sources arranged on it, and the carrier, which usually represents at least the section of a touchable housing of the lamp can.
  • the carrier is formed from a conductive material such as a sheet of metal.
  • the design of the carrier from a formed sheet metal is particularly advantageous, which is why the provision of the insulation layer brings additional advantages.
  • the printed circuit card is therefore in direct contact with the carrier, the insulation layer in particular representing the additional element or being part of the additional element which is arranged between the printed circuit card and the carrier.
  • the insulation layer can be designed, for example, as a film or as a potting piece.
  • the insulation layer can have cutouts which are aligned with the feedthroughs provided in the carrier, so that the light sources pass through the insulation layer into the Extend bushings.
  • the insulation layer can extend over the light sources, the insulation layer being transparent in particular in the areas in which it extends over the light sources.
  • the insulation layer is preferably transparent in such a way that it has a transparency of over 70%, in particular over 90%, for light in a wavelength range between at least 500 to 650 nm.
  • the insulation layer has a plurality of bulges which are arranged in a bulge arrangement which corresponds to the lead-through arrangement in such a way that each light source of at least the majority of the light sources is arranged under a corresponding bulge and is arranged in a corresponding lead-through.
  • the insulation layer is preferably made in one piece, in particular from a single material.
  • the luminaire preferably has several insulating layers formed in one piece, each of which runs between the printed circuit board and the carrier and preferably extends over the light sources, whereby these insulating layers can then be arranged next to one another and each prevent electrical contact between the carrier and printed circuit card.
  • the carrier is generally preferably designed in one piece.
  • the printed circuit card is designed in one piece.
  • the insulation layer is designed and arranged in such a way that it prevents electrical contact between the carrier and printed circuit board and hinders light emission from the light sources away from the outside of the carrier as little as possible.
  • the insulation layer is designed in such a way that it ensures a resistance of over 1 M ⁇ , in particular over 2 M ⁇ , between the printed circuit card and the carrier.
  • the insulation layer is designed in such a way that it ensures a voltage capability of over 1.5 kV between the printed circuit board and the carrier.
  • the insulation layer is designed as an insert component that is placed on the luminous side of the printed circuit card and is fixed to the carrier via the printed circuit card.
  • the insulation layer can be fixed to the carrier solely by the circuit card, so that no further fixing means is provided for fixing the insulation layer to the carrier.
  • a separate fixing means can also be provided for fixing the insulation layer on the carrier and / or the circuit card.
  • the insulation layer can be placed on the luminous side of the printed circuit board in a production step or placed on the inside of the carrier, after which the printed circuit board is then placed on the inside of the carrier in a subsequent production step, while the insulation layer is between the PCB and the carrier is located.
  • the luminescent side of the printed circuit card presses against the insulation layer, the insulation layer pressing against the flat section of the carrier.
  • the pressing takes place at least in sections.
  • the pressing can take place directly or indirectly, ie the circuit card can press directly or indirectly against the insulation layer and the insulation layer can press directly or indirectly against the flat section of the carrier. Of course, this is based on the fixing position of the circuit board.
  • the insulation layer extends in sections over the light sources and into the feedthroughs, the insulation layer having at least one optically active section, with each of the light sources being arranged on an optically active section assigned to it in a majority of the light sources.
  • an optically effective section of the insulation layer thus extends in each case over a light source; H. along a light source on its side, on which it emits light that radiates away from the outside of the wearer.
  • the optically effective sections are thus arranged in a section arrangement which corresponds to the light source arrangement and to the lead-through arrangement.
  • the respective section which is assigned to the respective light source is designed to be optically effective; H.
  • the optically effective section can be designed as a free-form lens.
  • the insulation layer thus functions not only as an electrical protective layer but at the same time as an optical control means, as a result of which the radiation property of the lamp can be further optimized in a very cost-effective manner.
  • the optically effective section particularly preferably extends through the at least one passage and protrudes on the outside of the carrier. At least that a light source assigned to the optically effective section is arranged relative to the optically effective section and the optically effective section is designed so that at least 70%, in particular at least 80%, in particular at least 90% of the light intensity of light emitted from the assigned light source in the optically effective section arrives, is emitted with an emission direction which forms an angle of less than 40 °, in particular less than 20 °, in particular less than 10 ° to the outside of the carrier.
  • the outside of the carrier is of course placed on the side of the carrier from which light is emitted in the lamp according to the invention.
  • the lamp extends in a longitudinal direction and in a transverse direction, the extension length of the lamp in the longitudinal direction being a multiple, in particular at least five times, in particular at least ten times the extension in the transverse direction.
  • the light source arrangement comprises a plurality of light sources arranged offset from one another in the longitudinal direction.
  • the optically effective section is designed and arranged relative to the assigned light source so that at least 70%, in particular at least 90% of the light intensity of light that reaches the optically effective section from the assigned light source is emitted in one direction which has an angle of at least 45 ° to the longitudinal direction.
  • the particularly advantageous embodiments mentioned have the particular advantage that the essential portion the light intensity of the light emitted by a light source is emitted at a small angle to the outside of the carrier, so that the emission of light by the luminaire is hardly affected by objects that are arranged close to the outside of the luminaire.
  • a corresponding design of the lamp can be particularly advantageous if the lamp is attached to an object, for example the wall or ceiling of a room, in such a way that its outside faces the object.
  • the lamp can then also emit a substantial proportion of the light intensity emitted by it into the room.
  • a substantial portion of the light intensity is emitted at an angle of more than 45 ° to the longitudinal direction of the lamp, a particularly good emission efficiency of the lamp can be guaranteed. It has to be taken into account that the extension of the lamp in the transverse direction is significantly smaller than in the longitudinal direction, so that a significantly larger proportion of the light emitted by the lamp actually reaches the room when the substantially larger proportion is radiated essentially in the transverse direction becomes.
  • a light-guiding plate is arranged on the outside of the carrier, which plate has at least one light-guiding section which is assigned to one of the at least one feedthrough and the light source arranged in the feedthrough.
  • the light-directing plate can ensure protection of the light sources arranged in the bushings.
  • a predetermined radiation characteristic of the lamp can be set via the light-directing plate.
  • the light-directing plate is attached to the outside of the carrier.
  • the plate can have a latching hook that is inserted into one on the outside of the carrier provided hole engages.
  • the light-directing plate can have latching projections on its edges, with which it engages behind retaining projections provided on the side walls of the carrier.
  • the light-directing plate can be screwed to the outside of the carrier.
  • the light-directing plate can for example be made of PMMA, for example as an extruded component or a component made by injection molding.
  • the latching hooks or latching projections can be integrated in one piece in the light-directing plate.
  • the light-directing plate is designed and arranged relative to at least one light source assigned to it that at least 70% of the light intensity of light that reaches the light-directing plate from the assigned light source is emitted with an emission direction that has an angle of less than 40 °, in particular less than 20 °, in particular less than 10 ° to the outside of the carrier.
  • the light-directing plate can particularly preferably be designed in such a way that at least 70% of the light intensity of the light that enters it from the associated light source is emitted with an emission direction that is at an angle of at least 45 ° to the longitudinal direction of the Has luminaire.
  • the luminaire has a light-directing element on the outside of its support, which ensures that at least 70% of the light intensity of light that is emitted by the light sources arranged on the light side of the circuit board is emitted in an emission direction that forms an angle of less than 40 °, in particular less than 20 °, in particular less than 10 °, to the outside of the carrier on which the at least one bushing is provided with a light source arranged in it, and in particular forms an angle of at least 45 ° to the longitudinal direction of the lamp.
  • the light-directing element can be implemented, for example, by the optically active section or by the light-directing plate or by the interaction of the optically-active section with the light-directing plate.
  • the optically effective section can, for example, dip into a correspondingly configured and intended cutout in the light-directing plate, ie, be arranged therein.
  • the light-directing element preferably ensures that at least 70% of the light intensity of light that is emitted by the light sources arranged on the luminous side of the circuit board is emitted with an emission direction that has an angle of less than 40 °, in particular less than 20 ° , in particular forms less than 10 ° to the flat extension of the board.
  • the light-directing element has a light entry surface which is assigned to a specific group of light sources, which consists of at least one light source, and via which light is coupled into the light-directing element which is emitted from this group of light sources.
  • the light-directing element extends in a transverse direction away from the group of light sources through at least one of the feedthroughs across the outside of the carrier.
  • the transverse direction can be perpendicular to the plane defined by the flat luminous side of the circuit board.
  • the transverse end of the light-directing element lying on the outside of the carrier, ie the end in the transverse direction with which the light-directing element Element protruding the furthest from the outside of the carrier is designed as a transverse end surface.
  • the transverse end surface has a curvature about an axis of rotation which is perpendicular to the transverse direction and in particular parallel to the longitudinal direction of the lamp.
  • the light entry surface also has a curvature about an axis of rotation which is perpendicular to the transverse direction and in particular parallel to the longitudinal direction of the lamp.
  • the light-directing element is designed and arranged relative to the group of light sources assigned to it in such a way that light that is coupled from the group of light sources into the light-directing element via its light entry surface and hits the transverse end surface within the light-directing element, at the transverse end surface is totally reflected to a considerable extent, in particular at least 90% of this coupled-in light that hits the transverse end surface is totally reflected.
  • the light entry surface and the transverse end surface are aligned with one another and the light-directing element is arranged in relation to the group of light sources assigned to it in such a way that at least 70%, in particular at least 90% of the light that is coupled into the light-directing element by the group of light sources, propagates in the light-directing element in a direction of propagation perpendicular to the transverse direction and exits the light-directing element with a direction of propagation which forms an angle of less than 40 °, in particular less than 20 °, in particular less than 10 °, to the outside of the carrier, the Propagation direction in particular forms an angle of at least 50 ° to the transverse direction, in particular at least 70 °, in particular at least 80 ° to the transverse direction.
  • the light-directing element has a Light entry surface on a light entry side and a light exit side, which are spaced from one another in a transverse direction. Light from at least one of the light sources is coupled into the light-directing element via the light entry surface.
  • the light entry surface lies in a transverse direction, which is perpendicular to the transverse direction, between two interfaces of the light-directing element.
  • the two boundary surfaces run over a transverse section between the light entry side and the light exit side and each have a curvature about an axis of rotation that runs perpendicular to the transverse direction and perpendicular to the transverse direction. In one embodiment, the boundary surfaces run directly from the light entry surface in the direction of the light exit side.
  • the extension length of the transverse section in the transverse direction is at least 30%, in particular between 30% and 90%, in particular between 50% and 80% of the maximum distance between the light entry side and light exit side, which corresponds in particular to the extension length of the light-directing element in the transverse direction.
  • the boundary surfaces are curved over a substantial area of the transversal section, for example each over at least 50% of the transversal extent of the transversal section.
  • the curvature in each case refers to a curvature about an axis of rotation that runs perpendicular to the transverse direction and perpendicular to the transverse direction.
  • different sections of the boundary surfaces can be curved around different axes of rotation assigned to them, each of which runs parallel but is spaced from one another.
  • the interfaces each exclusively have a curvature around at least one Axis of rotation, with all axes of rotation around which the curvature takes place running parallel, whereas in another embodiment further curvatures are also provided around other axes of rotation which are angled.
  • the light-directing element is designed and arranged relative to the light sources in such a way that a portion of the coupled-in light hits the interfaces, with at least 90% of this portion being totally reflected at the interfaces and thus not exiting the optical element.
  • the proportion of the coupled-in light that strikes the interfaces is at least 20%, in particular at least 50%, in particular at least 70% of the light, the proportion being based on the light intensity.
  • the insulation layer has flat sections which are arranged between the carrier and the printed circuit board, as well as optically effective areas which extend into the bushings.
  • the optically effective areas extend into the feedthroughs and end inside the carrier.
  • the optically effective areas extend through the feedthroughs from the inside to the outside of the carrier.
  • the optically effective areas can be designed in the manner of a section of an ellipsoid, in particular an ellipsoid of revolution, in particular a sphere.
  • the optically effective areas can be identical to the optically effective sections described.
  • the optically effective areas can each have a light-directing function.
  • the insulation layer By designing the insulation layer with flat sections and non-flat, optically effective areas arranged between the flat sections, on the one hand an optical function of the insulation layer and on the other hand a reliable attachment of the printed circuit board and insulation layer to the carrier can be achieved in a simple manner be realized.
  • a plurality of protruding domes are provided on the outside of the carrier outside the area of the at least one passage in the flat section, the domes protruding so far on the outside and being distributed around the at least one passage that a flat Element which is placed on the outside of the carrier, is always spaced from the light sources arranged in the at least one passage, and in particular from the insulation layer arranged in the at least one passage.
  • the planar element which is an external element independent of the lamp, can be in contact with at least three domes at the same time.
  • domes damage to the light sources or to the sections of the insulation layer extending over the light sources can be effectively prevented, for example during the transport of the lights, during which they are often connected to the outside of the carrier in which the bushings are provided, be placed on flat surfaces.
  • a flat element such as a ceiling
  • the carrier it can also be ensured that the light sources are spaced sufficiently far from the flat element.
  • all areas of the flat section of the carrier in which bushings are arranged in which light sources are arranged can run together in one plane, while the domes protrude perpendicular to the extent of this plane from the plane, in particular by at least 2 mm, in particular by at least Protrude 5 mm.
  • additional elevations are provided on the luminous side of the printed circuit board, which are arranged in an elevation arrangement, the domes in one Dome arrangement are arranged.
  • the light source arrangement, elevation arrangement, leadthrough arrangement and dome arrangement correspond to one another in such a way that of a majority of the elevations each elevation is arranged in a dome, while at the same time the majority of the light sources are arranged in one of the at least one penetration.
  • particularly good guidance of the printed circuit board and in particular the insulation layer relative to the carrier can be ensured by arranging the elevations in the domes.
  • the fixation of the printed circuit card and in particular the insulation layer to the carrier can be particularly preferred.
  • the insulation layer can have a plurality of receptacles which are designed to receive the elevations and are arranged in a receptacle arrangement corresponding to the elevation arrangement and the dome arrangement, the domes being designed to receive the receptacles of the insulation layer.
  • the printed circuit board is designed as a circuit board, one side of which is designed as the luminous side on which the light sources and conductor tracks are arranged.
  • the board has at least one electrical connection element for contacting the conductor tracks, the electrical connection element running from the luminous side through the board to the opposite side of the board and being designed to receive electrical leads from the opposite side of the board.
  • the electrical connecting element can, for example, as a connecting terminal, insulation displacement device or by be realized soldered, screwed or connected via a sliding contact cable ends. The electrical connection element always ensures the electrical connection of the board to electrical supply lines.
  • This embodiment reliably ensures that electrical contact can be made with the circuit card from the side opposite the luminous side, so that all additional components can be arranged on the side of the board facing away from the luminous side, so that no additional elements have to be arranged on the luminous side , through which the radiation efficiency of the light sources on the outside of the carrier can be influenced.
  • this enables the circuit board to be equipped on only one side, which means that the production costs of the lamp can be kept particularly low.
  • the provision of connecting terminals enables the lamp to be mounted particularly easily.
  • At least one of the elevations is particularly preferably formed by the electrical connection element.
  • This can ensure that the electrical connecting element is received by a corresponding dome, so that it is ensured that the light sources rest as close as possible to the carrier or extend as far as possible into the bushings or through the bushings.
  • the particularly good fixation of the circuit card to the carrier is realized in a particularly simple manner, since the electrical connection element provided in any case also serves as an elevation that is received in a dome to ensure a particularly advantageous fixation of the circuit card on the carrier.
  • a plurality of electrical connection elements can be provided on a printed circuit card, each electrical connection element being arranged in one of the domes.
  • the housing of the luminaire consists of the carrier and the at least one circuit card, the carrier being designed in particular as the insulation layer.
  • the carrier itself can provide electrical insulation for the printed circuit board.
  • the housing of the luminaire consists of the carrier, the printed circuit board and the at least one insulation layer, which is a component that is independent of the carrier.
  • the luminaire can include several circuit cards and in particular several insulation layers.
  • the luminaire also always has control and power supply units, such as supply lines or ballasts.
  • the luminaire has no further housing elements or optical elements, i. H. no further components required for the mechanical design of the luminaire.
  • a lamp always has a housing to which the components of the lamp, in particular power supply lines, are attached and which limits the geometric extension of the lamp.
  • this housing is represented by the carrier and the printed circuit board and, in particular, the separately provided insulation layer.
  • the luminaire consists of a carrier, printed circuit board and, in particular, an insulation layer as well as control and supply units.
  • the side of the printed circuit card facing away from the luminous side is particularly preferably designed to be electrically insulating.
  • the insulation layer and / or the carrier and / or the printed circuit board on which the light sources are arranged are formed in one piece, ie from a piece that is cohesively connected.
  • the insulation layer and / or the carrier are particularly preferred a one-piece, coherent component produced directly.
  • the luminaire particularly preferably has a plurality of circuit cards, the carrier having a plurality of lead-through arrangements each configured identically.
  • the feedthrough arrangement represents a pattern of feedthroughs that is repeated in the carrier.
  • Exactly one printed circuit board is arranged on a plurality of the patterns, ie the lead-through arrangements.
  • This embodiment is particularly suitable for the production of long light strip systems, the aforementioned configuration of the carrier, together with the use of a large number of printed circuit cards, enabling a modular structure and thus cost-effective production of the light.
  • the lamp in addition to the light sources arranged on the luminous side of the printed circuit board, the lamp has further light sources which are arranged on the side opposite the luminous side of the printed circuit board and which emit light away from the printed circuit board.
  • These further light sources can, for example, be arranged directly on the circuit board on which the light source arrangement is arranged.
  • a further printed circuit card is provided on which the further light sources are arranged, the further printed circuit card being arranged on the side of the printed circuit card opposite the luminous side.
  • a luminaire can be provided in a particularly simple manner, which simultaneously provides indirect lighting and direct lighting in a room.
  • the luminaire can be mounted with the outside of the carrier facing a component, such as a wall or a ceiling of a room, so that the light sources arranged on the luminescent side have a Ensure indirect lighting of the room, while the other light sources ensure direct lighting of the room.
  • the luminaire can in particular have an optical steering element on its side opposite the outside of the carrier in which the bushings are provided, which can be provided in particular in a cover element for covering the carrier, thereby ensuring direct lighting with a predetermined radiation characteristic can be.
  • the optical steering element can in particular have such a configuration as the light-directing element described above, the optical steering element being assigned to at least one of the further light sources, in particular all further light sources, and being designed so that the light emitted by the further light source or sources is Light entry surface is coupled.
  • the invention also relates to a method for producing a lamp.
  • a printed circuit card is placed with its flat luminous side on which light sources are arranged on a flat section of a carrier and is fixed to the carrier.
  • a majority of the light sources each light source is arranged in a feedthrough provided in the flat section of the support, the support having a U-shaped cross-section with a bottom section and two side sections and the flat section of the support through the bottom section is formed, and in addition to the light sources arranged on the luminous side of the printed circuit board, further light sources are provided which are arranged on the side of the printed circuit board facing away from the luminous side so that they emit light away from the printed circuit board.
  • the printed circuit board with its luminous side on the inside of the Arranged carrier, wherein the light sources are arranged in the bushings that they extend into the bushings and are therefore arranged so that they can emit light on the outside of the carrier.
  • an insulation layer which has flat sections and optically effective areas, is arranged between the printed circuit board and the carrier and extending over the light sources in such a way that the flat sections are arranged between the carrier and the printed circuit board and that the optically effective areas extend into the at least a passage, in particular from the inside to the outside of the carrier extend through the at least one passage.
  • the insulation layer can be designed and arranged between the printed circuit card and the carrier in such a way that it prevents electrical contact between the printed circuit card and the carrier when the printed circuit card is arranged in its fixing position on the carrier.
  • the insulation layer is particularly preferably placed on the luminous side of the printed circuit card or placed on the inside of the carrier, after which the printed circuit board is then placed with its luminous side on the carrier and is fixed to the carrier.
  • FIG. 1 a section of a lamp 1 according to the invention is shown in a schematic diagram.
  • the lamp 1 according to the invention comprises a carrier 3.
  • the carrier 3 has a substantially U-shaped cross section with a bottom section and two side sections and extends perpendicular to the cross section over a considerable length.
  • the flat section of the carrier 3, on which the circuit card 2 is arranged in its fixing position, is formed over the bottom section.
  • An insulation layer 4 is arranged between the printed circuit card 2 and the flat section of the carrier 3.
  • the circuit board 2, which is in Figure 3 is shown in more detail, has a luminous side on which LEDs 21 are arranged as light sources.
  • the luminescent side of the printed circuit card 2 is pressed in sections against the insulation layer 4, which in turn is pressed in sections against the flat section of the carrier 3.
  • the insulation layer 4 extends over the LEDs 21 of the printed circuit card 2.
  • the LEDs 21 extend into the bushings of the carrier 3, and that the insulation layer 4 extends over the LEDs 21 and through the bushings of the carrier 3.
  • the lamp 1 according to Figure 1 furthermore has a cover element which closes the carrier 3 on the open side of the U-shaped cross section.
  • Light 1 shown are arranged on the side facing away from the light side of the circuit board 2 additional light sources which emit light through the cover element. The lamp 1 according to Figure 1 is thus designed to ensure direct and indirect lighting at the same time.
  • the lamp 1 does not have a cover element on the open side of the U-shaped cross section of the carrier 3, but the housing of the lamp 1 consists of the elements carrier 3, printed circuit board 2 and insulation layer 4, with otherwise only additional electrical components for Power supply and Control of the circuit boards 2 with their light sources are included in the lamp 1.
  • FIGS 2 to 5 are the essential components of the lamp 1 according to Figure 1 , namely printed circuit board 2, carrier 3 and insulation layer 4, shown in schematic representations.
  • the carrier 3 has several lead-through arrangements with lead-throughs 31 and several dome arrangements with domes 32. In each case one dome arrangement is assigned to a lead-through arrangement.
  • a printed circuit board 2 is in each case arranged on a lead-through arrangement with lead-throughs 31 and the dome arrangements with domes 32 assigned to it.
  • lamp 1 according to Figure 1 thus, several circuit cards 2 are arranged on a carrier 3.
  • the circuit boards 2 of the lamp 1 according to Figure 1 are designed as a circuit board.
  • the circuit board has connecting terminals 22 as electrical connecting elements which are inserted through the printed circuit card 2 in such a way that they enable contact to be made with the luminous side from the side of the printed circuit card 2 opposite the luminous side.
  • the connecting terminals 22 have terminal accesses 220 for supply lines on the side of the printed circuit board 2 opposite the lighting side.
  • a plurality of LEDs 21 are arranged in a light source arrangement on the light-emitting side of the printed circuit board 2, which with the lead-through arrangement of the lead-throughs 31 of the carrier 3 according to FIG Figure 2 corresponds.
  • FIG Figure 3 further components of the printed circuit card 2, such as, for example, conductor tracks, are not shown.
  • Out Figure 4 is that in the lamp 1 according to Figure 1 used insulation layer 4 can be seen in more detail.
  • the insulation layer 4 is designed as an insert component, in the present case as a potting piece. In other embodiments, can the insulation layer can also be designed as an insulation film, for example.
  • the insulation layer 4 is transparent and has a multiplicity of optically effective sections 41 which are arranged in a section arrangement which corresponds to the lead-through arrangement and to the light source arrangement.
  • the insulation layer 4 according to FIG Figure 4 a plurality of receptacles 42, which are arranged in a receptacle arrangement which corresponds to the dome arrangement of the domes 32 of the carrier 3.
  • the insulation layer 4 can thus as in Figure 5 shown are placed on the luminous side of the circuit board 2, so that the LEDs 21 are each located within the optically effective sections 41 and the connecting terminals 22 are each located within the receptacles 42.
  • the insulation layer 4 has more receptacles 42 than the printed circuit card 2 has connecting terminals 22.
  • circuit card 2 and insulation layer 4 ensures that circuit card 2 and insulation layer 4 are very well fixed to carrier 3 and, moreover, that there is electrical contact between circuit card 2 and carrier 3 the insulation layer 4 is effectively prevented.
  • the insulation layer 4 with optically effective sections 41 which act like an optical lens, at the same time effective influence can be exerted on the radiation characteristics of the lamp 1, so that the lamp 1 according to the invention can be produced with simple means so that it has a predefined radiation characteristic having.
  • FIGS. 6 and 7th sections of further embodiments of a lamp 1 according to the invention are shown, the lamps 1 each being shown in an assembly position in which they rest against a ceiling element 100 of a room.
  • the two different embodiments according to Figure 6 and Figure 7 each have, as explained above, a carrier 3 as well as an insulation layer 4 and a printed circuit card 2 on which LEDs 21 are arranged.
  • An LED 21 is arranged in a lead-through of the carrier 3 assigned to it.
  • the in Figure 6 and 7th each have a light-directing element which is arranged on the outside of the carrier 3 and which is designed and arranged relative to the associated light source 21 such that at least 80% of the light emitted by the light source emerges from the luminaire with an emission direction, which forms an angle of less than 20 ° to the outside of the carrier 3 and of less than 20 ° to the flat extension of the luminous side of the printed circuit card 2.
  • the light-directing element is formed by a light-directing plate 60 which is arranged on the outside of the carrier 3.
  • the lamp 1 according to the invention is intended according to Figure 6 with its light-directing plate 60 mounted on a ceiling element 100, the light-directing plate 60 ensuring that a substantial proportion of the light emitted by the light sources 21 of the lamp 1 between the ceiling element 100 and the carrier 3 from the light-directing plate 60 exits.
  • the light-directing element 60 is formed by an optically effective section 50 of the insulation layer 4.
  • the lamp 1 is intended according to Figure 7 with its light-directing element 60 mounted adjacent to a ceiling element 100, the light-directing element 60 ensuring that at least 80% of the light emitted by the light sources 21 emerges from the luminaire 1 between the ceiling element 100 and the carrier 3.
  • the light-directing elements 60 of the embodiment according to Figure 6 and 7th each have a transverse end surface that is curved around an axis of rotation that runs perpendicular to the transverse direction, the transverse direction being perpendicular to the flat extension of the printed circuit board 2 and the insulation layer 4 extending in the transverse direction through the opening of the carrier 3.
  • a corresponding design of the transverse closing surface of the light-directing element 60 including the alignment of the transverse direction is generally advantageous.
  • the light-directing element 60 of both embodiments each has a light entry surface which is designed as a smooth surface which has a curvature about an axis of rotation that is perpendicular to the transverse direction mentioned.
  • the light-directing element 60 ensures the described alignment of the light emitted by the LEDs 21 through the relative arrangement of the light-directing element 60 to the LEDs 21 and through the relative arrangement and configuration of the light entry surface and the transverse end surface, so that the Radiation direction lies in the specified angular range.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)

Claims (12)

  1. Lampe (1) comprenant un circuit imprimé (2) et un support (3), dans laquelle le support (3) a une section transversale en forme de U avec une partie inférieure et deux parties latérales, dans laquelle le circuit imprimé (2) a un côté d'éclairage plat où une pluralité de sources de lumière (21) sont disposées dans un agencement de sources de lumière, dans laquelle le circuit imprimé (2), dans une position de fixation, est fixé sur le support (3) et est disposé sur une partie plate de la face intérieure du support (3) qui est formé par la partie inférieure, et dans laquelle le circuit imprimé (2), en position de fixation, est dirigée avec son côté d'éclairage vers ladite partie plate du support (3), dans laquelle la partie plate présente un agencement de passages avec au moins un passage (31), dans laquelle l'agencement de sources de lumière et l'agencement de passages correspondent l'un à l'autre de telle manière que chaque source de lumière (21) d'une majorité de sources de lumière (21) est disposée dans un passage respectif dudit au moins un passage (31) de l'agencement de passages pour rayonner de la lumière à partir d'un extérieur du support, dans laquelle une couche isolante électrique d'une seule pièce (4) s'étend par sections entre le circuit imprimé (2) et le support (3) et s'étend à travers les sources lumineuses, dans laquelle la couche isolante (4) comporte des parties planes qui sont disposées entre le support (3) et le circuit imprimé (2), ainsi que des parties optiquement efficaces qui s'étendent dans ledit au moins un passage (31), en particulier du côté intérieur vers l'extérieur du support (3) à travers ledit au moins un passage (31),
    caractérisée en ce que
    la lampe (1) comprend, en plus des sources lumineuses (21) disposées sur le côté d'éclairage du circuit imprimé (2), d'autres sources lumineuses qui sont disposées au côté du circuit imprimé (2) opposé au côté d'éclairage et qui rayonnent de la lumière à partir du circuit imprimé (2).
  2. Lampe (1) selon la revendication 1,
    caractérisée en ce que
    la couche isolante (4) est conçue comme un composant d'insertion qui est placé sur le côté d'éclairage du circuit imprimé (2) et est fixé au support (3) par l'intermédiaire du circuit imprimé (2), le circuit imprimé (2) appuyant notamment avec son côté d'éclairage contre la couche isolante (4) et pressant la couche isolante (4) contre la partie plate du support (3).
  3. Lampe (1) selon l'une des revendications précédentes,
    caractérisée en ce que
    la couche isolante (4) s'étend par sections sur les sources de lumière (21) et dans ledit au moins un passage (31), la couche isolante (4) présentant au moins une partie optiquement efficace (41), chacune des sources de lumière (21) en cas d'une majorité de sources de lumière étant disposée sur une partie optiquement efficace (41) qui lui est associée.
  4. Lampe (1) selon la revendication 3,
    caractérisée en ce que
    la partie optiquement efficace (41) s'étend à travers ledit au moins un passage (31) et fait saillie au-delà du support (3) à l'extérieur du support (3), dans laquelle ladite au moins une source de lumière (21) associée à la partie optiquement efficace (41) est disposée par rapport à la partie optiquement efficace (41) et la partie optiquement efficace (41) est conçue de telle sorte qu'au moins 70 % de l'intensité lumineuse de la lumière entrant dans la partie optiquement efficace (41) à partir de la source de lumière associée (21) est rayonnée avec une direction de rayonnement formant un angle inférieur à 40°, en particulier inférieur à 10° par rapport à l'extérieur du support (3).
  5. Lampe (1) selon l'une des revendications précédentes,
    caractérisée en ce que
    les parties optiquement efficaces sont spécialement conçues à la manière d'un segment d'ellipsoïde, en particulier un ellipsoïde rotatif, notamment une boule.
  6. Lampe (1) selon l'une des revendications précédentes,
    caractérisée en ce que
    une plaque de direction de la lumière est disposée à l'extérieur du support (3), laquelle plaque comporte au moins une partie de direction de la lumière qui est associée à l'un desdits au moins un passage et est associée à la source de lumière (21) disposée dans le passage.
  7. Lampe (1) selon l'une des revendications précédentes,
    caractérisée en ce que
    une pluralité de dômes (32) en saillie sont prévus sur le côté extérieur du support (3) à l'extérieur de la zone dudit au moins un passage (31) dans la partie plate, les dômes (32) faisant saillie sur le côté extérieur jusqu'à un certain point et étant répartis autour des passages (31) de telle sorte qu'un élément plan, qui est appliqué contre le côté extérieur du support (3), est toujours à distance des sources de lumière (21) disposées dans ledit au moins un passage (31) et en particulier de la couche isolante (4) disposée dans ledit au moins un passage (31).
  8. Lampe (1) selon la revendication 7,
    caractérisée en ce que
    sur le côté d'éclairage du circuit imprimé (2) sont prévues des élévations supplémentaires qui sont disposées en réseau d'élévations et que les dômes (32) sont disposés dans un agencement de dômes, dans lequel l'agencement de sources de lumière, l'agencement d'élévations, l'agencement de passages et l'agencement de dômes correspondent les uns aux autres de telle manière que chaque élévation d'une majorité des élévations est disposée dans un dôme (32) tandis qu'en même temps, chaque source de lumière (21) de la majorité des sources de lumière est respectivement disposée dans l'un des passages (31).
  9. Lampe (1) selon l'une des revendications précédentes,
    caractérisée en ce que
    le circuit imprimé (2) est conçue comme une carte de circuit imprimé dont une face est conçue comme le côté d'éclairage sur lequel sont disposées les sources de lumière (21) et des pistes conductrices, la carte de circuit imprimé présentant au moins un élément de connexion électrique (22) pour mettre en contact les pistes conductrices, l'élément de connexion électrique (22) s'étendant du côté d'éclairage à travers la carte de circuit imprimé jusqu'au côté opposé de la carte de circuit imprimé et étant conçu pour recevoir des lignes d'alimentation électrique du côté opposé de la carte de circuit imprimé.
  10. Lampe (1) selon les revendications 8 et 9,
    caractérisée en ce que
    au moins une des élévations est formée par l'élément de connexion électrique (22).
  11. Lampe (1) selon l'une des revendications précédentes,
    caractérisée en ce que
    le boîtier de la lampe (1) se compose du support (3), d'au moins un circuit imprimé (2), et en particulier de ladite au moins une couche isolante (4), le côté du circuit imprimé (2) détourné du côté d'éclairage (2) étant conçu de manière électriquement isolante.
  12. Procédé de fabrication d'une lampe (1), dans lequel un circuit imprimé (2) est placé avec son côté d'éclairage plat, sur lequel des sources de lumière (21) sont disposées, sur une partie plate d'un support (3) et est fixée sur le support (3), dans lequel le support (3) a une section transversale en forme de U avec une partie inférieure et deux parties latérales et la partie plate du support est formée par la partie inférieure, et dans lequel, parmi une majorité de sources de lumière (21), chaque source de lumière (21) est respectivement disposée dans un passage (31) qui est prévu dans la partie plate du support (3), dans lequel une couche isolante (4) d'une seule pièce, qui présente des parties planes ainsi que des parties optiquement efficaces, est disposée entre le circuit imprimé (2) et le support (3) et de manière à s'étendre en travers des sources lumineuses de telle sorte que les parties planes sont disposées entre le support (3) et le circuit imprimé (2) et que les parties optiquement efficaces s'étendent dans ledit au moins un passage (31), en particulier du côté intérieur vers l'extérieur du support (3) à travers ledit au moins un passage (31),
    caractérisé en ce que
    la lampe (1) comprend, en plus des sources lumineuses (21) disposées sur le côté d'éclairage du circuit imprimé (2), d'autres sources lumineuses qui sont disposées sur le côté du circuit imprimé (2) opposé au côté d'éclairage et qui rayonnent de la lumière à partir circuit imprimé (2).
EP17156507.0A 2016-02-25 2017-02-16 Circuit imprimé à del inversé Active EP3211296B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102016103370.7A DE102016103370A1 (de) 2016-02-25 2016-02-25 Invertierte LED-Leiterkarte

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Publication Number Publication Date
EP3211296A1 EP3211296A1 (fr) 2017-08-30
EP3211296B1 true EP3211296B1 (fr) 2020-12-02

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EP (1) EP3211296B1 (fr)
DE (1) DE102016103370A1 (fr)

Citations (2)

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KR101284261B1 (ko) * 2013-03-15 2013-07-08 유제황 다기능 발광다이오드 조명모듈

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DE10303969B4 (de) * 2003-01-31 2008-11-27 Osram Opto Semiconductors Gmbh Leuchtdiodenanordnung mit einem Leuchtdiodenträger und einer Mehrzahl von Leuchtdioden
GB2479142A (en) * 2010-03-30 2011-10-05 Optovate Ltd Illumination Apparatus
WO2011121845A1 (fr) * 2010-03-31 2011-10-06 シャープ株式会社 Appareil d'éclairage et appareil de culture de plantes
TWI417478B (zh) * 2010-08-19 2013-12-01 Delta Electronics Inc 燈具模組
TWI412703B (zh) * 2010-08-19 2013-10-21 Lm Opto Co Ltd 具有發光二極體之照明裝置
DE102012215934B4 (de) * 2012-09-07 2016-04-28 Osram Gmbh Lichtsystem
DE202014101310U1 (de) * 2014-03-21 2015-08-06 Zumtobel Lighting Gmbh LED-Modul zur Halterung an einem flächigen Trägerelement, sowie Trägerelement-Anordnung mit einem solchen LED-Modul

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US20110103051A1 (en) * 2009-10-30 2011-05-05 Ruud Lighting, Inc. Led apparatus and method for accurate lens alignment
KR101284261B1 (ko) * 2013-03-15 2013-07-08 유제황 다기능 발광다이오드 조명모듈

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EP3211296A1 (fr) 2017-08-30

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