EP3348897A1 - Beleuchtungssystem, ensprechende komponenten, kit und verfahern - Google Patents

Beleuchtungssystem, ensprechende komponenten, kit und verfahern Download PDF

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Publication number
EP3348897A1
EP3348897A1 EP18151042.1A EP18151042A EP3348897A1 EP 3348897 A1 EP3348897 A1 EP 3348897A1 EP 18151042 A EP18151042 A EP 18151042A EP 3348897 A1 EP3348897 A1 EP 3348897A1
Authority
EP
European Patent Office
Prior art keywords
fixation element
lighting device
lighting system
complementary formations
lighting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP18151042.1A
Other languages
English (en)
French (fr)
Other versions
EP3348897B1 (de
EP3348897B8 (de
Inventor
Felix Franck
Alberto ZANOTTO
Aleksandar Nastov
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Osram GmbH
Osram SpA
Original Assignee
Osram GmbH
Osram SpA
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, Osram SpA filed Critical Osram GmbH
Publication of EP3348897A1 publication Critical patent/EP3348897A1/de
Publication of EP3348897B1 publication Critical patent/EP3348897B1/de
Application granted granted Critical
Publication of EP3348897B8 publication Critical patent/EP3348897B8/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • 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
    • F21V21/02—Wall, ceiling, or floor bases; Fixing pendants or arms to the bases
    • F21V21/025—Elongated bases having a U-shaped cross section
    • 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
    • F21V21/08—Devices for easy attachment to any desired place, e.g. clip, clamp, magnet
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Definitions

  • the present description relates to lighting devices.
  • One or more embodiments may refer to lighting devices employing electrically powered light radiation sources such as solid-state sources, e.g. LED sources.
  • LED modules which may exhibit a protection against the penetration of external agents, e.g. an IP protection degree.
  • Such devices may cause, at least in some conditions, problems regarding fixation, e.g. because of the little available space (e.g. in case of a hand rail application) or regarding the distribution of the light radiation emitted by the module itself (e.g. a batwing distribution).
  • the bi-adhesive mounting solution may be unsatisfactory as regards the retention force, also as a function of the material of the mounting surface.
  • a glue such as a silicone glue may be used. Also in this case, a critical aspect may concern the optional removal of the module without causing damages.
  • Another possible drawback of glues may be due to a limited service life and/or to the possible change in colour.
  • fixation clips which are available in various shapes and materials and may be used to implement different fixation solutions, thanks to the differences in retention force and/or fixation method.
  • Such clips may exhibit the drawback of masking, at least partially, the light emitting surface, and consequently they may modify the emission distribution of the light beam: for example, the may affect the distribution of the light radiation, therefore originating dark spots along the module.
  • Still another solution may involve mounting tracks, e.g. piercing tracks, which are adapted to ensure a good result as regards uniformity, but may pose the risk of causing damages in case of a removal of the module which, once mounted on a track, may have been pierced or otherwise penetrated by various fixation elements.
  • mounting tracks e.g. piercing tracks, which are adapted to ensure a good result as regards uniformity, but may pose the risk of causing damages in case of a removal of the module which, once mounted on a track, may have been pierced or otherwise penetrated by various fixation elements.
  • One or more embodiments aim at overcoming the previously outlined drawbacks.
  • said object may be achieved thanks to a lighting system having the features set forth in the claims that follow.
  • One or more embodiments may also refer to components of said system, as well as to a corresponding kit and method.
  • reference 100 generally denotes a lighting device adapted to include a light radiation generator 120 having a structure known in itself. Some possible exemplary implementations of said structure are discussed in the following with reference to Figures 7ff .
  • a profiled housing 122 of a light-permeable material e.g. a transparent silicone material
  • a light-permeable material e.g. a transparent silicone material
  • housing 122 may perform a protection action against the penetration of external agents into device 100, e.g. with an IP degree protection.
  • devices such as the device (or module) 100 exemplified in the foregoing are to be deemed as known in themselves, which makes it unnecessary to provide a more detailed description herein. This also applies to the possibility of implementing such a device as an element of indefinite length (shown in cross section in the Figures), optionally flexible and/or adapted to be cut to length according to the application and usage needs.
  • One or more embodiments may deal with the problem of enabling mounting said device onto a mounting structure S.
  • One or more embodiments may favour mounting device 100 onto a wide range of mounting structures S.
  • Said structures may include for instance a wall (e.g. a ceiling), an architectural element (e.g. a hand rail), a furnishing element of any nature, both in buildings and in moving structures such as vehicles and the like: this list is of course merely exemplary, and does not limit the embodiments.
  • the mounting of device 100 may take place via a fixation element 10.
  • element 10 may include a sort of profiled track adapted to be coupled to structure S, and having at least one formation for coupling with device 100.
  • element 10 may include a channel-shaped track, including a central or core wall 10a and side walls 10a extending sidewise of central wall 10a.
  • each side wall 10b is adapted to form a rib-like protrusion, which may be inserted in a corresponding longitudinal groove 100b provided in device 100.
  • the groove (s) 100b (which may be provided in the same number as the rib-like protrusions 10b in element 10) may be located at the back portion (lower portion in Figures 1 and 2 ) of the housing of device 100.
  • the groove(s) or slot(s) 100b may be provided in a part of device 100 (e.g. the housing or profile 122) adapted to include a compliant material (e.g. a silicone material).
  • a compliant material e.g. a silicone material
  • the rib(s) 10b may therefore penetrate the groove(s) 100b and may be retained therein, thanks to the deformability of the walls of the groove(s) 100b.
  • Figures 1, 2 and 4 exemplify a tooth-like sculpturing 10c, e.g. with a sawtooth profile adapted to implement a hooking coupling with the walls of the groove(s) 100b.
  • the sculpturing features 10c may be present in different numbers and with different profiles, as shown - by way of example only - in Figure 5 , which shows sculpturing features 10c arranged in pairs on each side wall 10d, and having a square/rectangular cross section, or in Figure 6 , showing sculpturing features 10c which extend (as a single sculpturing feature on each side wall 10b) with a rounded, e.g. lobe-shaped, cross-section profile.
  • Figures 7 to 11 refer to a device 100 wherein the protection against the penetration of external agents is achieved through the use of a channel-shaped housing
  • Figures 13 to 17 refer to an equally protected device 100 wherein the protection may be achieved during the forming (moulding) step of device 100.
  • generator 120 may include electrically powered light radiation sources, such as one or more LED sources.
  • LED sources such as one or more LED sources.
  • References 1 and 2 appearing in Figures 7ff respectively denote the LED source (e.g. emitting in the blue range, with phosphor conversion into visible light) and the associated package.
  • reference 7 denotes a substrate (substantially similar to a Printed Circuit Board, PCB) for mounting source(s) 1, 2.
  • Reference 8 denotes an insert (or spacer), optionally of a thermally conductive material, which in one or more embodiments may be interposed between substrate 7 and the bottom wall of a channel-shaped housing 9.
  • housing 9 is adapted to host the substrate 7, whereon source(s) 1, 2 are arranged, the channel-like shape of housing 9 being adapted to be filled with a potting mass.
  • the potting mass may include a material 5, e.g. a white or reflective, generally light-impermeable material, adapted e.g. to mask from observation from the outside of device 100 electrical/electronic components and devices which may be mounted on the front surface of substrate 7, as well as a further light-permeable material 3 (e.g. a transparent or diffusive material) which allows the light radiation produced by source 1 to propagate outwards from device 100.
  • a material 5 e.g. a white or reflective, generally light-impermeable material, adapted e.g. to mask from observation from the outside of device 100 electrical/electronic components and devices which may be mounted on the front surface of substrate 7, as well as a further light-permeable material 3 (e.g. a transparent or diffusive material) which allows the light radiation produced by source 1 to propagate outwards from device 100.
  • a material 5 e.g. a white or reflective, generally light-impermeable material, adapted e.g
  • housing 9 and masses 5 and 3 are adapted to include a flexible material, so that device 100 is generally flexible.
  • Figures 7 to 11 exemplify various implementation solutions for one or more ribs 91, adapted to protrude from the central wall of housing 9 (in the direction away from the front side of device 9, from which the light radiation is diffused), so as to be inserted into one or more corresponding slots or grooves 101, 102 adapted to be provided in the fixation element 10.
  • the presence may be envisaged of one or more ribs 91 having (transversally of the extension direction of device 100) a width increasing in the distal direction, away from the body of device 100, so as to originate a dove-tail joint with one or more corresponding cavities 101, 102 provided in the fixation element 10.
  • Figure 11 (and, in a complementary fashion, Figure 12 ) exemplify the possibility, in one or more embodiments, of envisaging the presence of a plurality of ribs 91 of this kind, each being adapted to engage a corresponding slot/groove 101, 102 of the fixation element 10.
  • Figures 7 to 10 exemplify various features which may be present in one (or each) of said ribs 91.
  • fixation element Similar or complementary features may also be present in the fixation element, as exemplified by the rounded/chamfered edges denoted as 104 in Figure 12 and in Figure 18 .
  • FIG. 13 to 18 This aspect is shown for example in Figures 13 to 18 , wherein one or more features of rib(s) 91 exemplified with reference to Figures 7 to 12 are applied to a device 100 having a protection obtained by moulding (Moulded Flex Protect), wherein substrate 7 hosting the light radiation source(s) 1, 2 is sealed against the penetration of external agents, by being moulded between:
  • the first portion 6 may include a white or translucent, e.g. light-impermeable, material, while portion 4 may include transparent or diffusive material, i.e. a light-permeable material, enabling the propagation towards the outside of device 100 of the light radiation generated by source(s) 1, 2.
  • One or more embodiments may therefore envisage at least one protruding formation (rib) in one of device 100 and fixation element 10, and at least one corresponding slot or groove e.g. in the other element.
  • rib protruding formation
  • the at least one protruding formation is provided (see e.g. 10b) in the fixation element 10, with one or more corresponding grooves (see e.g. 100b) provided in device 100.
  • the at least one protruding formation is provided (see e.g. 91) in device 100, with one or more corresponding grooves (see e.g. 101, 102) provided in the fixation element 10.
  • the coupling between such complementary portions may be implemented by a dove-tail joint.
  • the presence of rounded edges may simplify such mounting and removing operations.
  • the mounting/removal operation may also be simplified by the presence of chamferings or bevels, such as the ones denoted as 94 in Figure 10 or in Figure 16 .
  • One or more embodiments may enable a simple mounting of device 100 onto element 10 by a simple snap-on operation, optionally with the application of low side forces.
  • the removal operation of device 100 from fixation element 10 may take place, in one or more embodiments, simply through a pulling action exerted onto device 100 in a direction away from fixation element 10.
  • One or more embodiments may enable an accurate positioning of fixation element 10, which may be advantageous for signage applications, the possibility being given for example of initially defining the position of fixation element 10 with accuracy, without involving the lighting device 100 in the operation.
  • the complementary formations may be implemented in different ways, for example during the manufacturing process of device 100 (e.g. during the extrusion of housing 3, 4, 6, 9), or optionally with a cutting process, e.g. laser cutting.
  • the sizes and shapes of said complementary formations may depend on the forming process thereof, e.g. with different cutting methods; for example, in the case of an extrusion process, the cavities may be larger than those implemented via laser cutting.
  • the retention force which may be achieved thanks to the coupling of said complementary features may be proportional to the size thereof, e.g. to the size of the cavity.
  • a small-sized cavity may exert a higher retention force than a large-sized cavity.
  • the choice of a large-sized cavity may simplify the mounting and installation process.
  • the choice of a given shape of the complementary features may depend e.g. on the desired properties as regards the force needed for installing device 100 onto fixation element 10, and/or on the desired retention force. Generally speaking, it may be assumed that, the higher the force needed during installation, the higher the retention force achieved.
  • fixation element 10 As regards the mounting procedure of fixation element 10, it may be stated that for example a generally rigid element 10 (e.g. a track of a light metal material) may be preferable for linear applications, the choice of a thermally conductive material being also useful for cooling, i.e. for dissipating the heat produced by the light radiation source(s) in operation.
  • a generally rigid element 10 e.g. a track of a light metal material
  • a thermally conductive material being also useful for cooling, i.e. for dissipating the heat produced by the light radiation source(s) in operation.
  • a flexible element 10 which may again include a metal material, may be useful in nonlinear applications, wherein a certain adaptability of device 100 to the mounting structure is sought after.
  • one or more embodiments are adapted to be employed in conjunction both with modules 100 of a certain length and with modules having reduced length.
  • the lighting device may carry the respective formations, mutually engageable in a form-coupling relationship with the corresponding formations of the fixation element, on the back surface, opposite the front light emission surface (e.g. 122; 3, 4).
  • the complementary formations may include:
  • said complementary formations may include a dove-tail coupling.
  • said complementary formations may include sculpturing (e.g. 10c) on at least one (e.g. 10b) of said complementary formations.
  • said sculpturing may include tooth-like formations.
  • said complementary formations may include rounded and/or chamfered edge regions (e.g. 10c; 92, 94).
  • said complementary formations may include material (e.g. the material of the housing 100b or of the rib(s) 91) and/or form features (e.g. 93) facilitating deformation of the complementary formations during coupling, optionally via elastic coupling.
  • material e.g. the material of the housing 100b or of the rib(s) 91
  • form features e.g. 93
  • said complementary formations may include a plurality of pairs of mutually coupleable complementary formations.
  • the lighting device may include a protected device including an optionally flexible encapsulation (e.g. 122; 3, 5, 9; 4, 6).
  • an optionally flexible encapsulation e.g. 122; 3, 5, 9; 4, 6.
  • said lighting device may include at least one solid-state light radiation source (e.g. 1, 2), preferably a LED source.
  • at least one solid-state light radiation source e.g. 1, 2
  • a LED source e.g. 1, 2
  • One or more embodiments may concern a lighting device configured (e.g. 100b; 91) as a component for use in a lighting system according to one or more embodiments.
  • One or more embodiments may concern a fixation element for lighting devices, the element being configured (e.g. 10b; 101, 102) as a component for use in a lighting system according to one or more embodiments.
  • One or more embodiments may concern a kit for providing a lighting system according to one or more embodiments, the kit including:
  • a method of providing a lighting device may include:
  • One or more embodiments may include coupling the fixation element to a mounting structure, preferably prior to coupling the lighting device and the fixation element.

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  • 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)
EP18151042.1A 2017-01-12 2018-01-10 Beleuchtungssystem und ensprechendes verfahren Active EP3348897B8 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT201700003095 2017-01-12

Publications (3)

Publication Number Publication Date
EP3348897A1 true EP3348897A1 (de) 2018-07-18
EP3348897B1 EP3348897B1 (de) 2020-07-08
EP3348897B8 EP3348897B8 (de) 2020-08-19

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EP18151042.1A Active EP3348897B8 (de) 2017-01-12 2018-01-10 Beleuchtungssystem und ensprechendes verfahren

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3904753A1 (de) * 2020-04-30 2021-11-03 Lumileds LLC Halterung, lichtmodul damit und verfahren zur herstellung davon
EP4001737A1 (de) * 2020-11-12 2022-05-25 Teknoware Oy Led-streifen und verfahren zur herstellung eines led-streifens

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0606006A1 (de) * 1993-01-06 1994-07-13 The Standard Products Company Lichtleiste
WO1999006759A1 (en) * 1997-07-28 1999-02-11 Hewlett-Packard Company Strip lighting
US6186645B1 (en) * 1997-02-24 2001-02-13 Itc, Inc. Flexible lighting system and mounting arrangement
WO2008134424A2 (en) * 2007-04-24 2008-11-06 Lumination Llc Led perimeter lighting system
US20100238655A1 (en) * 2008-05-09 2010-09-23 Sloanled, Inc. Low profile extrusion
US20140313722A1 (en) * 2013-04-17 2014-10-23 Raw Thrills, Inc. Flexible Decorative Lighted Strip, Cabinet Including Same, and Installation Method

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0606006A1 (de) * 1993-01-06 1994-07-13 The Standard Products Company Lichtleiste
US6186645B1 (en) * 1997-02-24 2001-02-13 Itc, Inc. Flexible lighting system and mounting arrangement
WO1999006759A1 (en) * 1997-07-28 1999-02-11 Hewlett-Packard Company Strip lighting
WO2008134424A2 (en) * 2007-04-24 2008-11-06 Lumination Llc Led perimeter lighting system
US20100238655A1 (en) * 2008-05-09 2010-09-23 Sloanled, Inc. Low profile extrusion
US20140313722A1 (en) * 2013-04-17 2014-10-23 Raw Thrills, Inc. Flexible Decorative Lighted Strip, Cabinet Including Same, and Installation Method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3904753A1 (de) * 2020-04-30 2021-11-03 Lumileds LLC Halterung, lichtmodul damit und verfahren zur herstellung davon
EP4001737A1 (de) * 2020-11-12 2022-05-25 Teknoware Oy Led-streifen und verfahren zur herstellung eines led-streifens
US11506347B2 (en) 2020-11-12 2022-11-22 Teknoware Oy LED strip and method for manufacturing a LED strip

Also Published As

Publication number Publication date
EP3348897B1 (de) 2020-07-08
EP3348897B8 (de) 2020-08-19

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