EP3705775B1 - Unité lumineuse à del en retrait - Google Patents

Unité lumineuse à del en retrait Download PDF

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Publication number
EP3705775B1
EP3705775B1 EP20156577.7A EP20156577A EP3705775B1 EP 3705775 B1 EP3705775 B1 EP 3705775B1 EP 20156577 A EP20156577 A EP 20156577A EP 3705775 B1 EP3705775 B1 EP 3705775B1
Authority
EP
European Patent Office
Prior art keywords
light unit
led
plate
hole
support
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
EP20156577.7A
Other languages
German (de)
English (en)
Other versions
EP3705775A1 (fr
Inventor
Gianfranco Cinel
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.)
Belfiore Srl
Original Assignee
Belfiore Srl
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Filing date
Publication date
Application filed by Belfiore Srl filed Critical Belfiore Srl
Publication of EP3705775A1 publication Critical patent/EP3705775A1/fr
Application granted granted Critical
Publication of EP3705775B1 publication Critical patent/EP3705775B1/fr
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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
    • F21S8/00—Lighting devices intended for fixed installation
    • F21S8/02—Lighting devices intended for fixed installation of recess-mounted type, e.g. downlighters
    • F21S8/026—Lighting devices intended for fixed installation of recess-mounted type, e.g. downlighters intended to be recessed in a ceiling or like overhead structure, e.g. suspended ceiling
    • 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
    • F21V15/00—Protecting lighting devices from damage
    • F21V15/01—Housings, e.g. material or assembling of housing parts
    • 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
    • F21V17/104—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 using feather joints, e.g. tongues and grooves, with or without friction
    • 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
    • F21V19/04—Fastening of light sources or lamp holders with provision for changing light source, e.g. turret
    • 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
    • F21V21/04—Recessed bases
    • F21V21/041—Mounting arrangements specially adapted for false ceiling panels or partition walls made of plates
    • 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 invention relates to a recessed LED light unit, having the features set out in main claim 1.
  • these recessed light units comprise a plate-like support which has a small thickness and to which the light source is fixed, for example, an LED element, and provided with lateral wings for engagement with the internal portion of the plate to which the light unit is applied.
  • the support There is fixed to the support a plate-like member which remains externally visible during the application of the light unit and which has a through-opening, through which the light emitted by the LED element is emitted outwards. Therefore, it is interposed between the support and the plate-like member, substantially in vertical alignment with the opening.
  • Lighting devices of this type do not generally allow the LED element to be readily removed from the light unit, once the application to the wall has been carried out.
  • the plate-like member which remains visible externally on the wall is subjected to the external levelling with the plasterboard sheet. Therefore, if it is necessary to gain access to the LED, for example, in order to replace it if necessary, it is necessary to dismantle the surface finish which is associated with the plate-like member and to remove the support from the anchoring seat which is provided in the plasterboard sheet. This operation, though it is not required often as a result of the long life of the LED elements, is found to be rather complex and difficult when it is necessary.
  • the main objective of the invention is to provide an LED light unit for recessed applications which is structurally and functionally configured to overcome the limitations set out above with reference to the currently available solutions. This object and other objects which will be appreciated more clearly below are achieved by the invention by means of a recessed LED light unit which is constructed according to the appended claims.
  • a recessed LED light unit in particular for being applied to plates which constitute false walls and/or false ceilings, comprises a support for fixing an LED element which is provided with lateral wings for engagement with the internal portion of the sheet, to which the light unit is applied, a plate-like member which is capable of being fixed to the support and which has a through-opening, through which the light emitted by the LED element of the light unit is emitted outwards, the LED element being mounted in a position interposed between the support and the plate-like member, substantially in vertical alignment with the opening, the LED light unit further comprising a plate-like element which is interposed between the support and the member and which is mounted in a manner with limited sliding on the member, the plate-like element being provided with a first through-hole and a second through-hole, which are adjacent to each other, the first hole being capable of being engaged by a screen or lens element, and the plate-like element being movable between a first position, in which the first hole is arranged in
  • the LED element is capable of being fixed to the support by way of screw means, which can be screwed or unscrewed, from the outer side of the light unit, by means of a screwing tool which is guided through the opening and the second hole.
  • the LED element is capable of being fixed to the support by way of magnetic connection means.
  • the diameter of the second hole is selected so as to have a value between 9 and 16 mm.
  • the support is constructed from a thermally conductive material for discharging the heat produced by the LED element.
  • the plate-like element is at least partially received inside a seat which is formed in the member and which has such a formation as to guide the element during the sliding movement between the first position and the second position.
  • FIG. 1 an embodiment of a recessed LED light unit which is constructed according to the present invention.
  • the unit is mainly configured for applications on sheets L (see Figure 8 ), for example, of plasterboard, which constitute false walls and/or false ceilings.
  • sheets L for example, of plasterboard, which constitute false walls and/or false ceilings.
  • the wall constructed with plasterboard sheets is positioned with spacing from the rear wall/ceiling and in the gap which has been produced there is received the rear portion of the light unit.
  • the light unit 1 is constituted by two main portions, which are different from each other and intended to be mutually assembled, as will be appreciated in greater detail below.
  • the light unit comprises a plate-like support 2, to which there is fixed an LED element 3 (as a light source for the light unit).
  • the support is provided with a pair of opposite lateral wings 4 for engagement with the internal portion of the plasterboard sheet L, to which the light unit is intended to be applied.
  • the support is preferably constructed from a material with high thermal conductivity (for example, from aluminium or other similar material or metal alloy which is suitable for the purpose), in order to rapidly dissipate the heat produced by the LED.
  • the LED is applied to the support by way of screw type fixing means 5.
  • a preferred embodiment provides for a plate 6 of the printed circuit board of the LED (also referred to using the term PCB) to be provided with eyelets or notches for engaging one or more securing screws 5.
  • the plate 6 of the printed circuit board can be fixed to the support 2 by way of magnetic connection means.
  • the second portion of the light unit is constituted by a plate-like member 7 which is capable of being fixed to the support 2 and which has a through-opening 8, which is preferably formed as a cylindrical hole, through which the light emitted by the LED element 3 is emitted outwards.
  • the LED is mounted in a position interposed between the support 2 and the plate-like member 7 so as to be substantially in vertical alignment with the opening (that is to say, the light source of the LED is arranged in the direction of the main axis of the cylindrical hole which defines the opening 8). It will be understood that it is alternatively possible to provide holes having a formation different from the cylindrical one described above.
  • the plate-like member 7 serves to protect the LED in the closure of the seat which is formed in the plasterboard sheet L and therefore remains visible once the application is complete. It is further advantageously constructed from a material which makes the operation of external levelling with the plasterboard sheet easier.
  • the light unit 1 further comprises a plate-like element which is designated 9 and which is mounted in a manner with limited sliding on the member 7 and which is provided with a first and a second hole, designated 10 and 11, respectively, which extend through the thickness of the element 9 and which are mutually adjacent, and with respective parallel main axes.
  • the first hole 10 is further closed by the engagement of an element 12 in the form of a screen or lens, which is suitable for screening the hole 8 or diffusing the light emitted by the LED with a preselected angulation of the light rays, respectively.
  • the element 12 can be constructed as a reflector of the light rays emitted by the LED.
  • the holes 10, 11 are further preferably constructed with a circular cross-section and with an identical diameter with respect to each other, this selection in any case representing a preferred but non-limiting embodiment.
  • the plate-like element 9 is at least partially received in a manner guided inside a seat 13 which is formed in the member 7, which has such a formation as to guide the element 9 during a translational sliding movement, the magnitude of which is delimited by the opposite end of the seat.
  • the element 9 is movable in translation between a first position ( Figure 4 ), in which the first hole 10 is arranged in correspondence with the opening 8 (that is to say, in vertical alignment with the opening 8) so as to allow the diffusion outwards of the light emitted by the LED, and a second position ( Figure 5 ), in which the second hole 11 is the one to be moved in correspondence with the opening 8.
  • the diameter of the second hole 11 is preferably selected with a value between 9 mm and 16 mm, and the LED element 3 and in particular the circuit board 6 thereof to have such dimensions as to be able to be removed/inserted with a reduced relative play, through the opening 8 and the hole 11.
  • the plate-like element 9 is arranged in the first position, in which the hole 10 is vertically aligned with the opening 8, and the light emitted by the LED element 3 is diffused outwards through the screen or lens element 12 which engages with the hole 10.
  • the plate-like element 9 is initially moved from the first position to the second position (for example, by means of the tip of a screwdriver introduced from outside into the opening 8, in order to urge the element 9 into the sliding movement). Once this position is reached, the fixing screws 5 of the LED are accessible through the opening 8 and the hole 11 and can be unscrewed with a screwdriver tool C which is introduced through them from outside. Once the screws 5 are released, the LED element 3 can be removed by causing it to pass through the hole 11 in order to then be discharged from the opening 8 (shown in Figure 8 with broken lines).
  • the electrical connection wires of the LED are selected with a suitable length so as to allow the removal of the LED from the light unit with the wires connected thereto ( Figure 8 ). After replacement, the new LED element 3 can be inserted again through the opening 8 and the hole 11 in order to fix the corresponding screws 5 against the support 2.
  • the removal operation is further facilitated. In fact, it is simply necessary to move the LED away from the support by applying a removal force greater than the magnetic attraction forces so as to separate the LED from the support, and to allow the removal thereof from the light unit, in a manner generally similar to the preceding embodiment.
  • the recessed light unit according to the invention ensures the interchangeability of the LED element which is received in the light unit, without requiring disassembly or removal of any of the structural members of the light unit, thereby preserving the recessed application originally brought about.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Claims (6)

  1. Unité lumineuse à LED encastrée, en particulier pour être appliquée sur des plaques qui constituent de faux murs et/ou de faux plafonds, comprenant :
    un support (2) sur lequel un élément LED (3) est fixé, qui est pourvu d'ailettes latérales (4) pour une entrée en prise avec la portion interne d'une feuille (L), sur lequel l'unité lumineuse est appliquée, un organe du type plaque (7) qui est capable d'être fixé au support (2) et qui a une ouverture traversante (8), à travers laquelle la lumière émise par l'élément LED (3) de l'unité lumineuse est émise vers l'extérieur, l'élément LED (3) étant monté dans une position interposée entre le support (2) et l'organe du type plaque (7), sensiblement dans un alignement vertical avec l'ouverture traversante (8),
    caractérisée en ce qu'elle comprend un élément du type plaque (9) qui est interposé entre le support (2) et l'organe du type plaque (7) et qui est monté d'une manière avec un coulissement limité sur l'organe, en ce que l'élément du type plaque (9) est pourvu d'un premier trou traversant et d'un second trou traversant (10, 11), qui sont adjacents l'un à l'autre, le premier trou traversant (10) étant capable d'être mis en prise par un élément écran ou lentille (12), et en ce que l'élément du type plaque (9) est mobile entre une première position, dans laquelle le premier trou traversant (10) est agencé en correspondance avec l'ouverture traversante (8), pour diffuser la lumière émise par l'élément LED (3), et une seconde position, dans laquelle le second trou traversant (11) est agencé en correspondance avec l'ouverture traversante (8), l'élément LED (3) pouvant être retiré de l'unité lumineuse à travers le second trou traversant (11) et l'ouverture traversante (8).
  2. Unité lumineuse à LED encastrée selon la revendication 1, dans laquelle l'élément LED (3) est capable d'être fixé au support (2) à l'aide de moyens à vis, qui peuvent être vissés ou dévissés, à partir du côté extérieur de l'unité lumineuse, au moyen d'un outil de vissage qui est guidé à travers l'ouverture traversante (8) et le second trou traversant (11).
  3. Unité lumineuse à LED encastrée selon la revendication 1, dans laquelle l'élément LED (3) est capable d'être fixé au support (2) à l'aide de moyens de liaison magnétique.
  4. Unité lumineuse à LED encastrée selon l'une quelconque des revendications précédentes, dans laquelle le diamètre du second trou traversant (11) est choisi de façon à avoir une valeur entre 9 et 16 mm.
  5. Unité lumineuse à LED encastrée selon l'une quelconque des revendications précédentes, dans laquelle le support (2) est construit à partir d'un matériau thermoconducteur pour évacuer la chaleur produite par l'élément LED (3).
  6. Unité lumineuse à LED encastrée selon l'une quelconque des revendications précédentes, dans laquelle l'élément du type plaque (9) est au moins partiellement reçu à l'intérieur d'un siège (13) qui est formé dans l'organe du type plaque (7) et qui a une telle formation que l'élément du type plaque (9) est guidé durant le mouvement coulissant entre la première position et la seconde position.
EP20156577.7A 2019-02-22 2020-02-11 Unité lumineuse à del en retrait Active EP3705775B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT202019000000613U IT201900000613U1 (it) 2019-02-22 2019-02-22 Gruppo luce a LED da incasso

Publications (2)

Publication Number Publication Date
EP3705775A1 EP3705775A1 (fr) 2020-09-09
EP3705775B1 true EP3705775B1 (fr) 2021-04-14

Family

ID=69845013

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Application Number Title Priority Date Filing Date
EP20156577.7A Active EP3705775B1 (fr) 2019-02-22 2020-02-11 Unité lumineuse à del en retrait

Country Status (3)

Country Link
EP (1) EP3705775B1 (fr)
ES (1) ES2882013T3 (fr)
IT (1) IT201900000613U1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021100917B4 (de) * 2021-01-18 2024-02-29 Rüdiger Lanz Scheinwerfer mit wechselnden LED-Leuchtmitteln

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7478931B2 (en) * 2006-06-30 2009-01-20 Ruud Lighting, Inc. Lighting fixture service access
ITVI20130086U1 (it) * 2013-12-20 2015-06-21 Belfiore S R L Faretto da incasso
EP3283815B1 (fr) * 2015-04-13 2019-04-03 Buzzi & Buzzi S.r.l. Dispositif d'éclairage

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
EP3705775A1 (fr) 2020-09-09
ES2882013T3 (es) 2021-11-30
IT201900000613U1 (it) 2020-08-22

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