EP2787274B1 - Abgedichtetes Schutzgehäuse - Google Patents

Abgedichtetes Schutzgehäuse Download PDF

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Publication number
EP2787274B1
EP2787274B1 EP14161856.1A EP14161856A EP2787274B1 EP 2787274 B1 EP2787274 B1 EP 2787274B1 EP 14161856 A EP14161856 A EP 14161856A EP 2787274 B1 EP2787274 B1 EP 2787274B1
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EP
European Patent Office
Prior art keywords
flexible
thermal cage
thermal
edge
cage according
Prior art date
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Application number
EP14161856.1A
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English (en)
French (fr)
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EP2787274A1 (de
Inventor
Gilbert Sergent
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.)
RAM Chevilles et Fixations SAS
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RAM Chevilles et Fixations SAS
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    • 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
    • F21V15/02—Cages
    • 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
    • F21V25/00—Safety devices structurally associated with lighting devices

Definitions

  • the present invention relates to a thermal cage intended to be installed through an insulating panel to receive a lamp and allow the thermal energy generated by the lamp to dissipate.
  • One area of application is in particular that of downlights through insulated ceiling panels.
  • This type of lighting generally releases a large amount of thermal energy and the insulated ceiling panels have a wall on which is supported an insulating layer, for example glass wool. Also, the spots being embedded through an orifice made in the wall and under the glass wool, the thermal energy they produce is not easily dissipated and may cause inflammation of the wall and insulation .
  • heat dissipation cages intended to be installed on the inner face of the wall, under the glass wool to reserve a housing large enough to receive a portion of the spot and allow to gradually dissipate the thermal energy that accumulates there.
  • the thermal cages then comprise a bottom and flexible tabs facing extending along an axial component. The cage is then adjusted on the wall to the right of a hole made in the wall to receive the lamp. The layered glass wool is then separated from the orifice and the lamp.
  • the space above the wall is lined with a powdery material or in the form of flake by projection. This material ensures thermal insulation.
  • the insulating material in pulverulent form or flake is inserted into the cage through the brackets. As a result, the heat dissipation is lower and risks of ignition remain.
  • a problem that arises and that aims to solve the present invention is to provide a thermal cage that allows to dissipate sufficient thermal energy around the lamp in the presence of a powder or flake material as thermal insulation.
  • the present invention provides a thermal cage intended to be installed through an insulating panel to receive a lamp, said insulating panel having a wall and an orifice made in said wall, said cage comprising a bottom and at least two flexible tabs extending along an axial component from said bottom, the flexible tabs each having a free end support adapted to abut around said orifice of said wall, while said bottom is extended facing said orifice.
  • the thermal cage further comprises a plurality of flexible strips integral with said bottom, each of said flexible strips having two opposite side edges; and said flexible sipes freely extend edge to edge around said lugs along said axial component and in a radial component (A)
  • the flexible strips extend edge to edge forming a continuous screen around the fastening tabs of the cage so as to prevent the penetration of the powder material or flakes inside the cage during spraying.
  • the lamellae and the tabs are elastically flexible so that they can be brought radially closer to one another to allow them to pass through the orifice made in the wall. After insertion through the wall the lamellae and flexible tabs are released and they resume naturally their initial position; the slats umbrella edge to edge around the legs, and the tabs apart from each other, their support free end bearing around the orifice.
  • Edge to edge means here that the slats are sufficiently close to each other to prevent the passage of flakes or powder material between slats.
  • each of said flexible strips has a proximal end located towards said bottom and an opposite distal end, and said opposite lateral edges progressively move away from each other, from said proximal end toward said distal end.
  • the two opposite lateral edges of two adjacent lamellae are not only spaced from each other by a minute distance, but moreover they are substantially (A) "forming a continuous screen around said flexible tabs, the distal ends of said flexible strips defining a substantially circular perimeter within which extend said flexible tabs " parallel, from the proximal end to the distal end.
  • the cover of the screen around the housing defined by the thermal cage is substantially uniform, and the insulation can not penetrate any place.
  • each of said flexible strips advantageously extends in an arc between said bottom and said free end.
  • the thermal cage has a substantially bell-shaped shape around the lamp. This shape is then optimal to be able to dissipate the thermal energy around the lamp.
  • each of said flexible lamellae extends in an arc between said opposite lateral edges.
  • the thermal cage defines a substantially regular surface allowing a better flow of the projected insulating material.
  • said at least two flexible tabs and said flexible strips are molded together in one piece with said bottom.
  • the thermal cage is made at an advantageous cost, preferably made of plastic and for example polyamide.
  • said bottom has two detachable parts from each other, and said at least two flexible tabs are connected to one of said parts, whereas said flexible strips are connected to the other of said parts.
  • said at least two flexible tabs and one of said parts may be integrally molded on one side and said flexible strips connected to the other of said parts on the other side.
  • the parts consisting of said at least two flexible tabs and said one of said parts can be implemented alone as a thermal cage for insulating layer type glass wool. Also, this makes it possible to produce the thermal cage elements at an even more advantageous cost, since one of the parts has two complementary applications.
  • the thermal cage comprises two pairs of flexible tabs.
  • the legs thus extend facing two by two around the bottom and they allow a better stability of the cage.
  • said one of said parts has an orifice centered in said axial direction, said orifice having an internal hooking flange.
  • said other said portions have latching tabs extending in said axial direction for engaging said inner latching flange through said aperture.
  • said other of said parts comprises a substantially cylindrical portion having a bottom wall and an opposite edge, and said hooking tabs project from said bottom wall opposite said edge, while said flexible lamellae extend from said edge.
  • said bottom wall of the cylindrical portion is obstructed the centered orifice and thus prohibit the passage of powder material or flakes.
  • the Figure 1 illustrates, according to a first embodiment, a thermal cage 10 installed on a ceiling wall 12 to the right of an orifice 14 formed in the ceiling wall 12 and a diameter d .
  • the ceiling wall 12 delimits a sub-space 16 of a living space 18 intended to be illuminated, and it has an upper surface 20 opposite the under-space 16 and a lower surface 22 opposite the space to live 18.
  • the attic space 16 is intended to be filled with an insulating material, in a powder form or in the form of flakes.
  • the thermal cage 10 that will be described in more detail below, has two opposite flexible tabs 24, 26 respectively terminated by a free hooking end 28, 30 engaged in the ceiling wall 12 and flexible strips 32 which extend around the two opposite flexible tabs 24, 26.
  • the flexible strips 32 then define a housing 33 of circular symmetry about an axis A, ogival-shaped.
  • two first proximity lamellae 36, 38 are respectively located on each side of the flexible tab 26.
  • two second proximity lamellae not shown are similarly located on each side of the flexible tab 26.
  • Another flexible tab 24 The mode of cooperation of the proximity lamellae 36, 38 and of the flexible tab 26 will be explained below.
  • the other flexible strips 32 each have two opposite lateral edges 40, 42, and they extend in arc between a proximal end 44, integral with the bottom 34, and a distal end 46, free.
  • the width of each of said flexible strips 32 increases progressively from the proximal end 44 to the distal end 46.
  • the flexible strips 32 extend, at both in an axial component parallel to the axis of symmetry A, and in a radial component, from the bottom 34 to the distal end 46.
  • the distal ends 46 of the flexible strips 32 define a substantially circular perimeter inside which the flexible tabs 26, 24 extend. It is in this that the flexible strips 32 extend freely edge-to-edge 40, 42, around the flexible tabs 26, 24. It will be observed that this circular perimeter presents a diameter greater than the diameter d of the orifice 14 made in the ceiling wall 12.
  • the thermal cage 10 and the two opposite flexible tabs 26, 24 have a U-shaped profile having a bottom 48 and two opposite centrifugal wings 50, 52. It will be observed that the height of the centrifugal flanges 50, 52 decrease starting from the free hooking end 30, 28 and towards the bottom 34. As for the proximity lamellae 36, 38 they respectively have a centripetal wing 54, 56. The centripetal wings 54, 56 are respectively extend, close together from each other, facing opposite centrifugal wings 50, 52.
  • the housing 33 defined by the flexible strips 32, and also delimited by the flexible tabs 26, 24 and the proximity lamellae 36, 38 is relatively sealed vis-à-vis the powder materials or insulation flakes .
  • the space which extends between the lateral edges 40, 42 of the flexible strips 32, and on the other hand the space which extends between the centrifugal wings 50, 52 of the flexible tabs 24, 26, and respectively the centripetal wings 54, 56, proximity strips 36, 38 are sufficiently thin to prohibit the passage of insulating materials.
  • the flexible strips 32 extend from one edge 40 to the other 42 in an arc. In this way, a substantially uniform external mean surface is obtained allowing a uniform flow of the insulating materials when they are injected into the space under roof 16, around the thermal cage 10.
  • the thermal cage 10 thus described, and in particular on the Figure 1 , is in the rest position and operative so as to receive inside the housing 33 a lighting lamp producing thermal energy, and outside in the space attic 16 to be covered with a material insulation in powder form. This material being then prevented from penetrating inside the thermal cage 10.
  • the thermal cage 10 illustrated on the Figures 1 to 3 is molded in one piece of plastic material. According to a particular mode of implementation, it is molded in polyamide. Other materials are obviously usable.
  • the lamellae 32, 36, 38 and the tabs 26, 24 are elastically flexible and articulable, in particular with respect to the bottom 34.
  • the thermal cage 10 illustrated on FIG. Figure 2 it comes first, bring the strips 32, 36, 38 and the tabs 24, 26 from each other by driving them radially towards the axis of symmetry A, so as to reduce the volume of the thermal cage 10, such that its diameter is smaller than the diameter d of the orifice 14.
  • the thermal cage 10 thus compressed is then engaged through the orifice 14 and is then released so that the free hooking ends 28, Flexible tabs 24, 26 engage inside the hole 14 in the thickness of the ceiling wall 12.
  • the flexible tabs 24, 26, thanks to their elastic return, promote the anchoring of the free ends 28, 30 in the thickness of the ceiling wall 12.
  • the flexible strips 32 and including the proximity strips 36, 38 thanks to the springback, also find their position radially away from the axis of symmetry A, and around the legs flexible 24, 26, edge 40 on board 42.
  • the thermal cage according to this second embodiment is divided into two parts, one 58 illustrated on the Figure 4 , the other 59 illustrated on the Figure 5 .
  • the bottom comprises a first portion 60 of base on which are installed two pairs 62, 64 of flexible tabs 24 ', 26'.
  • the flexible tabs 24 ', 26' of the two pairs 62, 64 extend in an axial direction A ', from the first part 60 of the bottom, and also according to a radial component. They are offset angularly and successively by 90 °, so as to extend facing two by two.
  • Each of them has a free hooking end 28 ', 30' intended to engage in the thickness of the ceiling wall 12, illustrated on FIG. Figure 1 , through the orifice 14.
  • they are all connected together by a cord 66 to limit their radial spacing from each other.
  • the first bottom portion 60 has a centered bottom hole 68, which is extended by a tubular extension towards the space which extends between the flexible tabs 24 ', 26' and which defines a not shown hooking flange.
  • the first part 58 of the thermal cage is molded in one piece of plastic material.
  • the flexible strips 32 ' extend radially back from the cylindrical wall 76 in the extension of the edge 77, and then in an arc along an axial component, from their proximal end 44' to their distal end. free 46 '. They have two opposite lateral edges 40 ', 42', which also separate for each of them, one of the other between the proximal end 44 'and the distal end 46'.
  • the second part 59 of the thermal cage is also molded in one piece of plastic material.
  • the two parts 58, 59 are able to be associated by inserting flexible tabs 78 through the bottom opening 68, so as to press the circular base 74 against the first part 60 of bottom in the periphery of the Bottom opening 68.
  • the lugs back of the flexible tongues 78 then engage against the rim of the tubular extension so as to secure the two parts 60, 72 of the bottom.
  • thermal cage similar to that illustrated in FIGS. Figures 1 to 3 , and able to play the same role vis-à-vis a thermal insulation in powder form or flakes in a space under roof over a ceiling wall.
  • An advantage of this embodiment lies in the possibility of implementing only the first portion 58 of the thermal cage for applications in which the thermal insulation is implemented in the form of layers of glass wool or rockwool for example. Also, this first part 58 can be realized at a more advantageous cost because, in greater numbers.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Thermal Insulation (AREA)

Claims (10)

  1. Schutzgehäuse (10), das dazu bestimmt ist, durch eine Isolierplatte hindurch montiert zu werden, um ein Leuchtmittel aufzunehmen, wobei die Isolierplatte eine Wand (12) und eine Öffnung (14) umfasst, die in der Wand gebildet ist, wobei das Schutzgehäuse (10) einen Boden (34; 60) und mindestens zwei flexible Elemente (24, 26; 24', 26') umfasst, die sich von dem Boden (34) aus entlang einer axialen Komponente erstrecken, wobei jedes der flexiblen Elemente (24, 26; 24', 26') ein freies Anlageende (28, 30; 28', 30') aufweist, das um die Öffnung (14) der Wand (12) herum zur Anlage kommen kann, wohingegen der Boden (34; 60) sich der Öffnung (14) zugewandt erstreckt, wobei das Schutzgehäuse überdies eine Vielzahl flexibler Lamellen (32; 32') umfasst, die einstückig mit dem Boden gebildet sind, wobei jede der flexiblen Lamellen (32, 32') zwei gegenüberliegende Seitenkanten (40, 42; 40', 42') aufweist;
    dadurch gekennzeichnet, dass die flexiblen Lamellen (32; 32') sich frei von Kante (40; 40') zu Kante (42; 42') um die flexiblen Elemente (24, 26; 24', 26') herum entlang der axialen Komponente und entlang einer radialen Komponente erstrecken, und einen durchgängigen Schirm um die flexiblen Elemente (24, 26; 24', 26') herum bilden, wobei die distalen Enden (46; 46') der flexiblen Lamellen (32) einen im Wesentlichen kreisförmigen Umfang bestimmen, in dessen Inneren sich die flexiblen Elemente (26, 24; 24', 26') erstrecken.
  2. Schutzgehäuse nach Anspruch 1, dadurch gekennzeichnet, dass jede der flexiblen Lamellen (32; 32') ein proximales Ende (44; 44') aufweist, das sich in Bodenrichtung befindet, (34; 72) und ein gegenüberliegendes distales Ende (46; 46'), und dadurch, dass die sich gegenüberliegenden Seitenkanten (40, 42; 40', 42') sich, von dem proximalen Ende (44; 44') zum distalen Ende (46; 46'), zunehmend voneinander entfernen.
  3. Schutzgehäuse nach Anspruch 2, dadurch gekennzeichnet, dass jede der flexiblen Lamellen sich bogenförmig zwischen dem Boden und dem freien Ende erstreckt.
  4. Schutzgehäuse nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass jede der flexiblen Lamellen (32; 32') sich bogenförmig zwischen den sich gegenüberliegenden Seitenkanten (40, 42; 40', 42') erstreckt.
  5. Schutzgehäuse nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die mindestens zwei flexiblen Elemente (24, 26) und die flexiblen Lamellen (32) einstückig mit dem Boden (34) geformt sind.
  6. Schutzgehäuse nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass der Boden zwei voneinander lösbare Abschnitte (60, 72) umfasst, und dadurch, dass die mindestens zwei flexiblen Elemente (24', 26') mit einem der Abschnitte (60) verbunden sind, wohingegen die flexiblen Lamellen (32') mit dem anderen der Abschnitte (72) verbunden sind.
  7. Schutzgehäuse nach Anspruch 6, dadurch gekennzeichnet, dass es zwei Paare (62, 64) flexibler Elemente umfasst.
  8. Schutzgehäuse nach Anspruch 6 oder 7, dadurch gekennzeichnet, dass der eine der Abschnitte (60) eine Öffnung (68) aufweist, die entlang der axialen Richtung zentriert ist, wobei die Öffnung (68) einen inneren Eingriffsflansch aufweist.
  9. Schutzgehäuse nach Anspruch 8, dadurch gekennzeichnet, dass der andere der Abschnitte (72) Eingriffslaschen (78) umfasst, die sich entlang der axialen Richtung erstrecken, um durch die Öffnung (68) hindurch mit dem inneren Eingriffsflansch in Eingriff zu gelangen.
  10. Schutzgehäuse nach Anspruch 9, dadurch gekennzeichnet, dass der andere der Abschnitte (72) einen im Wesentlichen zylindrischen Abschnitt (76) umfasst, der eine Bodenwand (74) und eine gegenüberliegende Kante (77) aufweist, und dadurch, dass die Eingriffslaschen (78) sich hervorspringend von der Bodenwand (74) gegenüber der Kante erstrecken, wohingegen die flexiblen Lamellen (32') sich von der Kante aus erstrecken.
EP14161856.1A 2013-04-03 2014-03-26 Abgedichtetes Schutzgehäuse Active EP2787274B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1353002A FR3004236B1 (fr) 2013-04-03 2013-04-03 Cage thermique etanche

Publications (2)

Publication Number Publication Date
EP2787274A1 EP2787274A1 (de) 2014-10-08
EP2787274B1 true EP2787274B1 (de) 2017-10-18

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ID=48570375

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Application Number Title Priority Date Filing Date
EP14161856.1A Active EP2787274B1 (de) 2013-04-03 2014-03-26 Abgedichtetes Schutzgehäuse

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EP (1) EP2787274B1 (de)
FR (1) FR3004236B1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202014106112U1 (de) 2014-12-17 2016-03-18 Zumtobel Lighting Gmbh System zur thermisch entkoppelten Montage von Leuchten
FR3034493B1 (fr) * 2015-03-31 2018-08-17 Hellermanntyton Kit comprenant un dispositif de coiffage de spot encastrable et un dispositif d'installation et procede d'installation d'un dispositif de coiffage de spot encastrable.

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2237867B (en) * 1989-11-10 1992-09-02 Rotaflex Ltd Light fittings
DE4324057C2 (de) * 1993-07-17 2003-10-16 Kaiser Gmbh & Co Kg Hohlkörper für die Elektroinstallation
DE19937617C2 (de) * 1999-08-10 2001-09-20 Industrievertretungen Reiner B Abdeckgehäuse für eine Einbauleuchte
DE10335515A1 (de) * 2003-07-31 2005-02-17 Norbert Volk Vorrichtung zur Herstellung eines Hohlraums
FR2977300B1 (fr) * 2011-06-30 2014-09-12 Hellermanntyton Coiffage de lampe pour plafond

Non-Patent Citations (1)

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

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Publication number Publication date
FR3004236B1 (fr) 2015-05-01
EP2787274A1 (de) 2014-10-08
FR3004236A1 (fr) 2014-10-10

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