EP2833058A1 - Befestigungsanordnung für Beleuchtungseinrichtungen, entsprechenden Beleuchtungseinrichtung und Leiterplatte - Google Patents

Befestigungsanordnung für Beleuchtungseinrichtungen, entsprechenden Beleuchtungseinrichtung und Leiterplatte Download PDF

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Publication number
EP2833058A1
EP2833058A1 EP14176861.4A EP14176861A EP2833058A1 EP 2833058 A1 EP2833058 A1 EP 2833058A1 EP 14176861 A EP14176861 A EP 14176861A EP 2833058 A1 EP2833058 A1 EP 2833058A1
Authority
EP
European Patent Office
Prior art keywords
mounting assembly
circuit board
annular holder
lighting source
annular
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
EP14176861.4A
Other languages
English (en)
French (fr)
Other versions
EP2833058B1 (de
Inventor
Frederic BORGARELLI
Daniele Bortolado
Antonio Favretto
Renato Frison
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 EP2833058A1 publication Critical patent/EP2833058A1/de
Application granted granted Critical
Publication of EP2833058B1 publication Critical patent/EP2833058B1/de
Not-in-force 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
    • 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
    • F21V23/006—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 being distinct from the light source holder
    • 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
    • F21V23/02—Arrangement of electric circuit elements in or on lighting devices the elements being transformers, impedances or power supply units, e.g. a transformer with a rectifier
    • F21V23/026—Fastening of transformers or ballasts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V19/00—Fastening of light sources or lamp holders
    • F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
    • F21V19/003—Fastening of light source holders, e.g. of circuit boards or substrates holding light sources
    • F21V19/004—Fastening of light source holders, e.g. of circuit boards or substrates holding light sources by deformation of parts or snap action mountings, e.g. using clips
    • 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 disclosure relates to lighting devices.
  • Various embodiments may refer to solid-state lighting devices, for example LED lighting devices.
  • holders that may be used in conjunction with solid-state lighting sources.
  • Such holders are adapted to match optical elements such as lenses or reflectors of various kinds, and having substantially the same shape and having been manufactured via the same technology (i.e., basically belonging to one and the same "family").
  • Such implementations basically perform the function of supporting an optical element couplable to an electrically powered lighting source, with possible drivers associated thereto.
  • One or more embodiments aim at satisfying such a requirement.
  • One or more embodiments may also refer to a corresponding lighting device, as well as to a corresponding circuit board.
  • One or more embodiments lead to the achievement of a flexible assembly which is adapted to support optical elements (e.g. reflectors) of different kinds, to absorb the tolerances derived from different manufacturing processes and/or from thermal expansion phenomena during operation, and which is moreover adapted to accommodate the drivers located e.g. outside the optical element and inside the luminaire housing.
  • optical elements e.g. reflectors
  • One or more embodiments may be implemented in downlight lighting devices, such as recessed ceiling-mounted spotlights.
  • reference 10 denotes a lighting device including a carrier body C, which may allow the use of device 10, for example as a downlight lighting device such as a so-called recessed ceiling-mounted or suspended-ceiling-mounted spotlight.
  • Carrier body C which is herein shown with an approximately cylindrical cup shape, may have different structures and shapes, according to the embodiments and/or use requirements.
  • a light radiation source including for example a base board 12 supporting a light radiation source including for example an array 14 of LED sources.
  • array 14 has an approximately circular polygonal shape.
  • light radiation source 14 may be for example a single light radiation source, or an array of light radiation sources arranged according to a different shape from what is presently shown.
  • optical element R adapted to cooperate with the radiation emitted by source 14.
  • optical element may denote for example a reflector (as the presently exemplified reflector R), a lens, a light diffuser or a combination of said components.
  • annular, e.g. circular, holder 16 above the base board 12 there may be mounted, in a position generally surrounding light radiation source 14, an annular, e.g. circular, holder 16.
  • holder 16 may be used to mount on device 10 an optical element such as for example reflector R.
  • holder 16 may form an abutment for an edge R1 (see Figure 4 ) of the inlet end of reflector R.
  • reflector R may be interlocked with carrier body C at the outlet end thereof, e.g. via an interlocking ring provided with toothed parts adapted to be inserted into a frontal groove of the mouth edge of carrier body C; of course, other solutions are possible.
  • holder 16 may be mounted on body C of the device above board 12 via a plurality of legs 18 (for example three legs with a mutual angular spacing of approximately 120° along the periphery of annular holder 16, at least one of which may be practically included in the bracket member 22 which will be dealt with in greater detail in the following).
  • legs 18 for example three legs with a mutual angular spacing of approximately 120° along the periphery of annular holder 16, at least one of which may be practically included in the bracket member 22 which will be dealt with in greater detail in the following).
  • legs 18 may be fixed to carrier body C of device 10, for example by screwing, while interposing gaskets 20 of a resilient material, i.e. being adapted to absorb possible tolerances between connected parts and/or to perform an anti-vibration function.
  • the fixing elements e.g. screws
  • board 12 and the lighting source 14 arranged thereon may be "floating" relative to the body of device 10, while annular holder 16 may support one or several pressure pads 21, pressing board 12/source 14 against carrier body C of device 10, which may have (thanks to the material thereof and/or the possible presence of finning, etc.) the properties of a heat sink, so as to favour heat dissipation from source 14.
  • the mounting mechanism of annular holder 16 onto ground plate 12 may be different from what presently exemplified, for example as regards the use of legs 18 and as regards the structure, the arrangement and the shape thereof.
  • FIGS 2 and 3 show in greater detail possible embodiments of the above described elements.
  • annular holder 16 may surround light radiation source 14 and support a bracket member 22 which is generally arched or crescent shaped, which projects over at least a part of the periphery of holder 16.
  • bracket 22 may extend for an angular width of approximately 120°.
  • bracket 22 may protrude towards the outside of annular holder 16.
  • bracket 22 there may be accommodated the drivers 24 of light radiation source 14.
  • circuits 24 of a known kind may be arranged on a circuit board substantially comparable to a printed circuit board (PCB) with an arched crescent-like shape, corresponding to the shape of bracket 22.
  • PCB printed circuit board
  • circuit board 24 may be coupled to bracket 22 via interlocking formations, adapted to implement e.g. a snap fit of board 26 with bracket 22.
  • such formations may include at least partially resilient tongues, denoted by 28, adapted to be coupled with board 26 e.g. by penetrating in slots formed in board 26, and/or by surrounding the board on the sides, so as to keep it fixed (together with circuits 24 formed thereon) on holder 16.
  • the correspondence of the arched crescent-like shape of the board 26 with the shape of bracket 22 does not mean necessarily that the arched shape of board 26 must be matched, i.e. that it must have a radius equal or substantially equal to the arched shape of bracket 22.
  • defining the shape of board 26 (and therefore possibly also of bracket 22) as crescent-shaped does not necessarily imply a tapered shape at one or both ends, as herein shown by way of example, for board 26.
  • board 26 (and/or bracket 22) may have either a tapered shape at one or both ends, as shown herein by way of example, or a non-tapered shape, i.e. a constant (radial) width.
  • the arched shape of board 26 (and of bracket 22) allow board 26 and circuits 24 accommodated thereon to be arranged along a path that matches more or less precisely the contour of holder 16, with the consequent possibility of matching the shape of carrier body C without increasing the overall size.
  • optical element R in the presently considered examples, a reflector with a general frusto-conical flared shape
  • optical element R may have an annular formation R1 adapted to be coupled to holder 16, as exemplified in Figure 4 , i.e. by inserting formation R1 into a frontal groove 30 of holder 16 where a gasket 32 of resilient material, e.g. silicone material, is arranged.
  • optical element R adapted to be interlocked with carrier body C e.g. via an annular flange provided with gripping teeth, see Figure 1
  • optical element R adapted to be interlocked with carrier body C e.g. via an annular flange provided with gripping teeth, see Figure 1
  • holder 16 e.g. via an annular flange provided with gripping teeth, see Figure 1
  • optical element R adapted to be interlocked with carrier body C e.g. via an annular flange provided with gripping teeth, see Figure 1
  • to absorb possible dimensional tolerances either due to the manufacturing of the mutually coupled parts or due to the size variations which may derive from thermal expansions caused by heating of parts during operation of the lighting device.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
EP14176861.4A 2013-07-31 2014-07-14 Befestigungsanordnung für Beleuchtungseinrichtungen, entsprechenden Beleuchtungseinrichtung und Leiterplatte Not-in-force EP2833058B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITTO20130648 2013-07-31

Publications (2)

Publication Number Publication Date
EP2833058A1 true EP2833058A1 (de) 2015-02-04
EP2833058B1 EP2833058B1 (de) 2016-09-07

Family

ID=49304216

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14176861.4A Not-in-force EP2833058B1 (de) 2013-07-31 2014-07-14 Befestigungsanordnung für Beleuchtungseinrichtungen, entsprechenden Beleuchtungseinrichtung und Leiterplatte

Country Status (1)

Country Link
EP (1) EP2833058B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3246625A1 (de) * 2016-05-16 2017-11-22 OSRAM GmbH Beleuchtungsvorrichtung und zugehöriges verfahren

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007128070A1 (en) * 2006-05-10 2007-11-15 Spa Electrics Pty Ltd Assembly including a fastening device
EP2455651A2 (de) * 2010-11-18 2012-05-23 Toshiba Lighting & Technology Corporation Lampeneinheit und Beleuchtungsbefestigung
EP2469161A1 (de) * 2010-07-05 2012-06-27 Toshiba Lighting&Technology Corporation Leuchte mit basiselementen, sockelvorrichtung und beleuchtungsvorrichtung

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007128070A1 (en) * 2006-05-10 2007-11-15 Spa Electrics Pty Ltd Assembly including a fastening device
EP2469161A1 (de) * 2010-07-05 2012-06-27 Toshiba Lighting&Technology Corporation Leuchte mit basiselementen, sockelvorrichtung und beleuchtungsvorrichtung
EP2455651A2 (de) * 2010-11-18 2012-05-23 Toshiba Lighting & Technology Corporation Lampeneinheit und Beleuchtungsbefestigung

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3246625A1 (de) * 2016-05-16 2017-11-22 OSRAM GmbH Beleuchtungsvorrichtung und zugehöriges verfahren

Also Published As

Publication number Publication date
EP2833058B1 (de) 2016-09-07

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