WO2014001112A1 - Circuit imprimé souple en forme de ruban équipé de led - Google Patents

Circuit imprimé souple en forme de ruban équipé de led Download PDF

Info

Publication number
WO2014001112A1
WO2014001112A1 PCT/EP2013/062448 EP2013062448W WO2014001112A1 WO 2014001112 A1 WO2014001112 A1 WO 2014001112A1 EP 2013062448 W EP2013062448 W EP 2013062448W WO 2014001112 A1 WO2014001112 A1 WO 2014001112A1
Authority
WO
WIPO (PCT)
Prior art keywords
diffuser
circuit board
light band
conductor strip
printed circuit
Prior art date
Application number
PCT/EP2013/062448
Other languages
German (de)
English (en)
Inventor
Tobias Staeber
Steffen Strauss
Original Assignee
Osram Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Osram Gmbh filed Critical Osram Gmbh
Publication of WO2014001112A1 publication Critical patent/WO2014001112A1/fr

Links

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
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
    • F21V17/16—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by deformation of parts; Snap action mounting
    • F21V17/164—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by deformation of parts; Snap action mounting the parts being subjected to bending, e.g. snap joints
    • 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
    • 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 is based on a light strip, which has a fitted with LEDs flexible strip-shaped circuit board.
  • Prior Art Documents US 2010/0061095 A1 discloses an LED strip light consisting of a flexible printed circuit board with LEDs and a cylindrical shell into which the flexible printed circuit board is inserted. After inserting the circuit board, the envelope is closed by a one-piece formed on her closure. The shell then completely surrounds the printed circuit board and serves for the simplified storage and installation of the light strip. About the shell, a diffusion of the light emitted by the LEDs light is achieved.
  • Document WO 2005/106320 Al discloses an LED light band, which is similar to the above-described light band. It has a flexible PCB with LEDs and a flexible cylindrical shell into which the circuit board is inserted. About the shell that surrounds the circuit board in the fully assembled state, a diffusion of the emitted light is achieved.
  • the object of the present invention is to provide a light strip with flexible strip-shaped printed circuit board with LEDs, which has a device-simple diffuser.
  • This object is achieved by a light band with a flexible strip-shaped printed circuit board or with a conductor strip whose surface is equipped with a plurality of LEDs. On this surface, a diffuser is arranged, which covers the LEDs.
  • the underside of the printed circuit board or of the conductor strip is at least partially formed without covering by the diffuser, so that the device-technical effort for the diffuser is reduced.
  • the diffuser has two lateral edge regions over which it is attached to the two side edges of the conductor plate or the conductor strip. As a result, the diffuser covers the surface of the printed circuit board or the conductor strip in its entire width.
  • the attachment is preferably designed such that the edge regions of the diffuser embrace the respective side edge of the printed circuit board or of the conductor strip and thus engage behind the printed circuit board or the conductor strip.
  • the diffuser due to its flexibility simply on the circuit board or over the Conductor be slipped or pulled, creating a secure and releasable attachment is created.
  • the printed circuit board or the conductor strip between the two edge regions be clamped.
  • the diffuser is attached to the circuit board over the entire length thereof.
  • the diffuser has a substantially unchanged cross-section over its length. If the LEDs are fastened along a central longitudinal axis of the printed circuit board or the conductor strip on this, it is preferable that the diffuser has a substantially symmetrical shape to the central longitudinal axis. Then the light is radiated symmetrically from the light band according to the invention.
  • one or more - preferably metallic - brackets may be provided on the underside of the printed circuit board or the conductor strip over which the edge regions of the diffuser in the direction of the side edges of the circuit board or the conductor band are stretched.
  • the at least one clip has a substantially symmetrical to the central longitudinal axis of the light band shape.
  • the at least one clip preferably has a planar section, which is arranged approximately parallel to the printed circuit board or to the conductor strip.
  • fastening means may be arranged. These can be, for example through holes and screws.
  • a preferred development has exactly one clip, which has a substantially unchanged cross section over its length. It is preferred if the light band according to the invention is mounted or used without significant deflection as a light string.
  • the underside of the printed circuit board or of the conductor strip may also remain free, so that the underside of the printed circuit board or of the conductor strip forms an outer side of the light band.
  • the diffuser viewed in cross-section may, on its outer side facing away from the printed circuit board or from the conductor strip, be convex, in particular, spherically-curved.
  • the diffuser can be used as a lens and the emission characteristics of the LEDS can be adjusted.
  • the diffuser may be curved concavely, in particular spherically, on its inner side facing the printed circuit board or the conductor strip, as an alternative or in addition in cross-section. This allows the diffuser to be used as a lens and the emission characteristics of the LEDS are adjusted.
  • the domed interior may be spaced apart from the LEDs.
  • the diffuser comprises silicone or it is filled or coated with phosphor (for example phosphorus).
  • the entire light band according to the invention is designed mirror-symmetrically to a central longitudinal plane. Then the light band can be installed and fixed with any orientation to its intended location.
  • the diffuser can be neutral in color or color.
  • FIG. 1 shows a first embodiment of the light band according to the invention in cross section.
  • Fig. 2 shows a second embodiment of the light strip according to the invention in cross section.
  • Figure 1 shows a first embodiment of a light band according to the invention in cross section. It is mirror-symmetrical with respect to a central longitudinal plane 2.
  • the light band has a serving as a printed circuit board flexible conductor strip 1, whose width is shown in Figure 1, and whose length may be several meters.
  • a plurality of LEDs 6 is arranged, which extend in a row along the surface 4, and of which in Figure 1, only one LED 6 is shown.
  • the LEDs 6 and the surface 4 of the conductor strip 1 are covered with a band made of silicone.
  • the diffuser 8 has a concave curved inner side 10 facing the conductor strip 1 and a convexly curved outer side 12.
  • the laterally along the two side edges 14 of the conductor strip 1 extending edge portions 16 of the diffuser 8 each have a bead-like encompassing portion 18 whose distance from each other is less than the width of the conductor strip 1.
  • the portions 18 surround the side edges 14 of the conductor strip 1 and engage behind The conductor strip 1.
  • the elasticity of the silicone from which the diffuser 8 is made can be used to provide the two edge portions 16 and in particular the two encompassing portions 18 with a clamping force, respectively in the direction of the longitudinal plane 2 of the light strip according to the invention is directed. This can be done in an unassembled state of the diffuser 8, the inner spacing of the two edge regions 16 and in particular the inner spacing of the two bead-like sections 18 be less than the width of the conductor strip 1.
  • Figure 2 shows a second embodiment of the light band according to the invention in cross section.
  • a diffuser 108 is provided, which is shaped in a (not shown) unassembled state similar to the diffuser 8 of the first embodiment.
  • edge regions 116 and in particular the bead-like encompassing portions 18 of the diffuser 108 are clamped by a clamp 20 against the two side edges 14 of the conductor strip 1.
  • the clamp 20 has a flat portion 24, which runs approximately parallel to an underside 28 of the conductor strip 1 and is wider than the conductor strip 1.
  • the bracket 20 has two clamping portions 26 which are formed (in the cross section shown in Figure 2) S-shaped. The clamping portions 26 each form free space for one of the two encompassing portions 18 and press the respective edge region 116 of the diffuser 108 against the respective side edge 14 of the conductor strip 1.
  • the diffuser 108 in the transition region from its main portion to the respective edge region 116 in the direction of the longitudinal plane 2 pressed. This deformation does not affect the outside 112 of the diffuser 108 over which the Light of the LEDs 6 to the outside (in Figure 2 largely upwards) is emitted.
  • the bracket 20 In the planar portion 24 of the bracket 20 at least one through-hole is arranged, in which a screw 22 is inserted. About this screw 22, the clamp 20 is attached to its intended location. For a secure attachment of the second embodiment of the light strip according to the invention is ensured. Furthermore, the clamping portions 26 of the bracket 20 reinforce the support of the diffuser 108 on the conductor strip. 1
  • Both embodiments of the light band according to the invention can be bent along the plane 2 (in the figures up and down), as the conductor strip 1 and the diffuser 8; 108 are flexible.
  • the bending direction along the main emission direction of the light and is directed transversely to the conductor strip 1 (in the figures up and down).
  • Both embodiments of the light band according to the invention are symmetrical to the longitudinal plane. 2

Abstract

L'invention concerne un bandeau lumineux comprenant un circuit imprimé souple en forme de ruban ou une bande conductrice dont la surface est équipée d'une pluralité de LED. Sur cette surface du circuit imprimé ou de la bande conductrice est disposé un diffuseur flexible qui recouvre les LED et de préférence la totalité de la surface. Le dessous du circuit imprimé ou de la bande conductrice est formé au moins par segments sans recouvrement par le diffuseur.
PCT/EP2013/062448 2012-06-25 2013-06-14 Circuit imprimé souple en forme de ruban équipé de led WO2014001112A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012210742.8A DE102012210742A1 (de) 2012-06-25 2012-06-25 Flexible streifenförmige leiterplatte mit leds
DE102012210742.8 2012-06-25

Publications (1)

Publication Number Publication Date
WO2014001112A1 true WO2014001112A1 (fr) 2014-01-03

Family

ID=48613659

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2013/062448 WO2014001112A1 (fr) 2012-06-25 2013-06-14 Circuit imprimé souple en forme de ruban équipé de led

Country Status (2)

Country Link
DE (1) DE102012210742A1 (fr)
WO (1) WO2014001112A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2524107A (en) * 2014-03-14 2015-09-16 Saf T Glo Ltd Lighting systems
US20160245477A1 (en) * 2015-02-23 2016-08-25 Osram Gmbh Lamp having a glass bulb and semiconductor light source

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202014101986U1 (de) 2014-04-28 2015-07-30 Zumtobel Lighting Gmbh Lichtbandsystem
DE102015203215A1 (de) * 2015-02-23 2016-08-25 Osram Gmbh Lampe mit lichtdurchlässigem Kolbenrohr
DE202015104042U1 (de) 2015-08-03 2015-08-31 Dotlux Gmbh Fixierungssystem für Platinen
DE102016202103A1 (de) * 2016-02-11 2017-08-17 Osram Gmbh Verfahren zum Herstellen eines Leuchtmoduls, Leuchtmodul sowie Verwendung eines Optikelements in einem Leuchtmodul
CN213900790U (zh) * 2021-01-29 2021-08-06 东莞市众耀电器科技有限公司 一种半包硅胶柔性灯条

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005106320A1 (fr) 2004-04-14 2005-11-10 Sloanled, Inc. Appareil d'eclairage a perimetre flexible
US20060028837A1 (en) * 2004-08-06 2006-02-09 Matthew Mrakovich Curvilinear LED light source
US20090161359A1 (en) * 2007-12-21 2009-06-25 Altair Engineering, Inc. Light distribution using a light emitting diode assembly
EP2151899A2 (fr) * 2008-08-05 2010-02-10 Zumtobel Lighting GmbH Système de bande lumineuse
US20100061095A1 (en) 2006-12-28 2010-03-11 Friedemann Hoffmann Lighting device
DE202012100952U1 (de) * 2012-03-16 2012-04-03 Wilhelm Koch Gmbh Lichtleiste

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6796680B1 (en) * 2000-01-28 2004-09-28 Lumileds Lighting U.S., Llc Strip lighting
DE102008009808A1 (de) * 2008-02-19 2009-08-27 Lighting Innovation Group Ag LED-Lichtleiste höherer Schutzart
EP2409071A1 (fr) * 2009-03-17 2012-01-25 Koninklijke Philips Electronics N.V. Bande de diodes électroluminescentes pour petites lettres profilées
DE102010043726A1 (de) * 2010-11-10 2012-05-10 Osram Ag Leuchtvorrichtung und Verfahren zum Herstellen einer Leuchtvorrichtung

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005106320A1 (fr) 2004-04-14 2005-11-10 Sloanled, Inc. Appareil d'eclairage a perimetre flexible
US20100039813A1 (en) * 2004-04-14 2010-02-18 Sloanled, Inc. Flexible perimeter lighting apparatus
US20060028837A1 (en) * 2004-08-06 2006-02-09 Matthew Mrakovich Curvilinear LED light source
US20100061095A1 (en) 2006-12-28 2010-03-11 Friedemann Hoffmann Lighting device
US20090161359A1 (en) * 2007-12-21 2009-06-25 Altair Engineering, Inc. Light distribution using a light emitting diode assembly
EP2151899A2 (fr) * 2008-08-05 2010-02-10 Zumtobel Lighting GmbH Système de bande lumineuse
DE202012100952U1 (de) * 2012-03-16 2012-04-03 Wilhelm Koch Gmbh Lichtleiste

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2524107A (en) * 2014-03-14 2015-09-16 Saf T Glo Ltd Lighting systems
US20160245477A1 (en) * 2015-02-23 2016-08-25 Osram Gmbh Lamp having a glass bulb and semiconductor light source
US9822934B2 (en) * 2015-02-23 2017-11-21 Ledvance Gmbh Lamp having a glass bulb and semiconductor light source

Also Published As

Publication number Publication date
DE102012210742A1 (de) 2014-01-02

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