GB2531825A

GB2531825A - Recessed ceiling light

Info

Publication number: GB2531825A
Application number: GB1502718.8A
Authority: GB
Inventors: Thran Udo
Original assignee: Brilliant AG
Current assignee: Brilliant AG
Priority date: 2014-10-27
Filing date: 2015-02-18
Publication date: 2016-05-04
Also published as: FR3027652A3; FR3027652B3; ES1135056U; DE202014105106U1; ES1135056Y; GB201502718D0; AT15090U1; ITMI20150003U1

Abstract

A recessed ceiling light 1 has a frame 4 inserted in an installation opening 2. A lamp housing 10 is held in a rotatable and pivotable manner in the Installation frame 4. A dome-like hood 7 is connected to the installation frame 4 so as to be rotatable about a central axis 9. The lamp housing 10 is fastened by means of a pivot 12 to the hood 7 and a notional extension 13 of the pivot axis intersects the central axis 9. The lamp housing 10 is rotatable about the pivot 12. The installation provides superior fire safety.

Description

Recessed ceiling ikgn,.. ,,,,,...

The invention relates to a recessed ceiling light with an insta.lbt,tion frame capable of being inserted in an installation opening with a preferably circular light emission. opening and at least one electrical light casing held in a rotatable and pivotable manner in the installation frame and having a lighting source, Recessed ceiling lights of this type are known in the prior art. These lights may be luminaires, They are used for example in suspended false ceilings, in which the respective false ceiling has at. the installation point an I nstallation opening into which the installation frame is capable of being inserted from the underside, The installation frame is usually fixed with sot', nn closures or the like which engage behind the false ceiling. prcvicied with the opening., Conventional. recessed ceiling lights of this type have hitherto been:provided with an electrical spotlight casing hcid in a rotatable and/or pivotable manner and having a lighting source, so that in th.e installation situation the spotlight casing with the be directed vertically or even obliquely and can be arranged in a different direction of rotation. In the technology customary hitherto, the sbotlight raidng.s are freely suspended in the installation frame, SO that there is an open air connection from the living area provided with the false ceiling to the cavity situated behind it.

In the event. of fire, flames or smoke or even air can be drawn through openings of this type, so as to fan the fire further in the event of fire. This is not desired.

Starting from this prior art, the aim of soma embodiments of the invention is to create a. recessed cell inc..L.LAIL. of the generic type which prevents the passage of flames or smoke through the insertion opening of the installation frame to the greatest possible degree, in particular in the event of smoke or flames developing in the cavity between the solid ceiling of the buflflOng and the suspended room ceiling. in this way, the penetration of smoke or flames in to the living area is intended to be prevented. or at least delayed for a. time, in particular even in fl.).e case where spotlights are arranged at an inclination.

Some embodiments are such that the light, emission opening of the installation frame may have inserted behind it or in it a dome-like hood, which is designed In particular in the manner of a spherical segment and which is connected to the installation frame in a positively locking manner but so as to be rotatable about a centre axis, preferably of the light emission opening, and that the spotlight casing should be fastened by means of a pivot, to the hood, it being preferable for a notional extension of the pivot to intersect the centre axis, in particular of the light emission opening in front, of the front side of the installation frame or in the aperture alignment of the installation frame and the spotlight casing being held so as to be rotatable about the pivot. As a result of the fact that the light emission opening of the installation frame has inserted behind it or in it a dome-like hood, which is designed in the manner of a spherical segment and which is connected to the installation frame in a positive locking. manner but so as to be rotatate about a centre axis of the light emission opening, the passage of flue gases or flames may be prevented, since an hermetic closure, which prevents the passage of flue gases and the like, is formed by the hood in any installation position of the spotlight casing.

result of the fact that the ho ad is mounted in a. rotatable manner and as a result of the fact that the spotlight-casing-is fastened by means of iivot to the hood, the notional extension of which intersects the centre axis of the light emission opening and on which the spotlight casino is held in a rotatable manner, it is possible for the spotlight casing to be arranged in a piyotable and rotatable manner, so that any setting is made possible by the hood being rotated and likewise the spotlight casing being rotated about the pivot. The radiation takes place in the room which has the wall with the installation opening, since the spotlight casing has or forms a corresponding light emission opening.

It is preferably provided in thiS case that the spotlight casing has a shape adapted to the hood and resembling it, 1.,e, likewise in the manner of a spherical segment, As a result, a reliable operation and a visual adaptation of the light parts may be made possible, In addition, it is preferable to provide chat the pivot is designed in the form of a ho'now axle and a supply cable for the lighting source is passed through the hollow axle, In this way, it. possible for the pivot designed in the form of a hollow axle to be used at tho same time fox the supply of electrical connecting lines to the lighting source. in this case the connecting cable is also prevented from being rotated in. an undesired manner during the pivoting and rotation ofthe light.

preferred further development lies in the fact that the -H1ntallation frame, which is capable of being mounted in an instalaation opening or behind it, has a plurality of preferably circular light emission openings arranged adlacent to one another with one hood covering them and one spotlidht casing in each case.

According to this arrangement some embodiments can be applied not only to Andivldu,,,1 but also to a plurality of flstallation lights which are arranged adjacent to one another on the installation frame and are designed and arranged in each case in the same wayas indicated above. In this way, it is possible to attach a. plurality of lighting units in the same or different sizes and in different arrangements.

In addition, it is preferably provided that halogen lighting sources or LEDj_ sources, in particular in COB (chip (s) on board) or SMD;surface mount device) technology, are used as the lighting sources, it can also dreferabiy-be provided that the sources are arranued so as to radiate directly from a light emission opening of the recessed ceiling light or indirectly or s0 as to reflect through an inserted reflector, In particular, it can also be provided that an ancillary lens, a protective glass cover, a diffusor and/or an anti-glare $ouvre is or are arranged on the light emission opening, A preferred detail lies in the fact that the light emission opening of the installation frame is surrounded by a collar which has at least one guide groove as a rotary guide and a positive locking means, into which a poUst or at least some pins, which is or are provided on the eclair, of the hood, engages or engage, AS a result, the fixing with positive locking and the rotation of the hood on the TrMe. are achieved with expedient means, A preferred alternative to this lies in the fact that on the side towards the apertuxe the hood has a surrounding flange edge by which it 4,-4 set against the installation frame so as to surround the light emission open3nc, and. that detachable holding means and/or fastening means, in particular cap screws, are provided, by moans of which. the flange is held on the installation frame in a securely mounted manner and which ensure the rotary movability of the hood about the centre axis of the light emission opening without obstruction.

In this case the fixing and the rotary movability are provide& by extramely simple means, Embodiments of the invention are illustrated in the drawings and are described in greater detail below. In the drawing Figure 1 shows a first embodiment of a recessed ceiJing light in the intended mounting position in an installation opening of a suspended ceiling; Figure 2 shows the same as viewed in section, in a first AT-Pnar.1 /;(4;3ureaff uoTlieTTP4suT agq 01 Jeuuew 5upooT AT2AT4Ts'od p UT paio9uuoo buTaq L pooq aq; 9inpaj TioT-4pTre4suT eqq. uT Jeuuew TgbT4-aTP ATTer,ue-Tsqn o*T PL ag oT 1. P004 9N7I10P Tf '0014Tsod Pi9Puour @Al uT 14 54 114541. og; 411144 CS E.-umi;w buTssacid 5uThuTads TO 21120111 AC 4 buTTTeo asTeg au4 apTs reaa GUT: 4suTebE. p;:sseJd. pp-sq. .aLlp pup 5uTTTeo asp? egi. 40 Teea @uq110 papTAoad aap; s:ueaw 50T:Dog peTiTaTT sT 9rning: 00114e1411245uT 91311 Jo uoTqaesuT Jo 14th,P 4E44 os o,E,Pa oburqj S 14ITM 111 6uTTTao ou..T. 10 apTs: 50:4 00 pagioddns sT 00111e1T1715114 'bu4u;D:710 uotssTu; 445114 1eT113:14-3 euo qm?aT ge 1444m 19z02; U044eTTE42U4 UP.:;*UU T iluF)TT 6U11Te0 passeoax,D.11.11 suoT41p15e uT eq-T UT umogs iE bT4490 esTpj papuedsns p jo 5u4019db uoT3ETTp450T ue uT psxT; eae g-DTgm 'T smbTT buTTTsr) 1120.11191] 11101111 t09MOTA se 9;;2n5T4T 04 buTpa000e 14(3511.11 0/', c2 111. bMOUS I aanhT..4 pup 'T 0111t314 04 J&UUUW JpTTarp-3 2 uT pamTA se 4ear541 uoT412T421;suT ue UT Pi5oono s-4.41ITT CMII goVcm 4,415TT 15014100 poss;Doaa p 410 fll-Tpoqwe 10041111111 0 pmcgs 9 aJnbT3 aaribTj. oq. 5uTpa0002 Pc;? IA s2 SuT-446TT aouqouP 414611 15uTITGc, 15519004 P JO TupTapA p 21045 C e1106T3 I 194111611.11 0211900010..xeTpuTs p uT 0010 1l' se Ewes: e44 smogs, tucTileauTio;a uoTiiTsod UUCKDU 0 UT 1019/IOTA UU 'T eanbT; o-4 31200201 151'IWIU 1? UT 40111 'or buTTTao P0S 000111 0141 smogs anbT2 f'qubTT 5044T90 p;Dssea-aa ag3 qo ouT4413s BTqt2sod engaging holding means B. The hood. 7 is nevertheless held so as to he rotatable about a centre axis 9 of the light emission opening of the installation frame 4, since the holding means 8 allow a rotary movement of the parts with respect to one another, so that. different orientations are made possible. In addition, the spotlight casing 10 together with the lighting source 11 is fastened by means of a pivot 12 to the flood 7, a notional extension of the pivot 12, which. is designated 13, intersecting the centre axis 9 of the light emission opening of the installation frame 4 in front of the front. side, of the installation frame 4, at. the bottom in figure 2 of the drawing. The spotlight cas:ing 10 is held so as to be rotatable about this pivot 12. As a. result of this it is nossible, without the sealing. of the installation oren-ing being adversely affected by the hood 7, for different angular settings of the spotlight casing 10 to be set in order to produce different radiation directions, in which case not only can the angular setting. of the spotlight casing 10 be altered, but the radiation direction can be altered in any desired manner by rotation of the hood 7 in the installation. frame 4 the axis 9. The holding means 8 form a continuous guide contour so that the hood 7 is rotatable in the installation frame 4.

In the embodiment the hood 7 is a spherical segment, the centre axis of which is orientated coaxially with the centre axis 9.

It is preferable for the spotlight casinu 10 to have a. shape adapted to the hood 7 and resembling it:.'s may be seen in particular in figures 2, 4, 5 and 7.

The pivot 12 is designed in the form of a hollow axle w"'nh engages through the hood 7, so that a supply cable 14 for the lighting source 11 can be passed through the hollow axle from the outside of the hood 7 to the spotlight casing 10, without the desired operation being adversely affected, In the case of the embodiment accordinci to.cures 6 and 7 an installation frame 4 is formed which is capable of being mounted in the installation opening 2 of the false ceiling 3. A. plurality of light emission openings which are surrounded in each case by a collar 15 and into which a hood 7 and a spotlight casing 10 arranged adjacent to each other are inserted in each case, are provided on the installation frame 4, these having the same design as the recessed lights which are shown in the other embodiments, In the case of the embodiment according to figures I and 2 an LED lighting source with. a reflector. 16 is used for example as the lighting source 11, in the case of the embodiments according to figures 31 S and 6, SMO (surface mounted device) LED iqhting sources are arranged in the form of a ring, the latter optionally emitting indirect. light since they radiate against a.n. inserted reflector 16 which emits light forwards, To this end, the arrangement of the LED light sources is provided on an annular body 17 which is positioned in front of the aperture of the dome-like reflector 16.

In f*g.nre 4 a CO2 LED lighting source 11 is used..

Other elements, for example ancillary lenses, a. protective glass cover, a diffusor or an anti -glare louvre, can also be positioned in front of the light emission opening of the recessed ceiling. light I., In the case of the recessed ceiling light. according to figures 6 and 7 the installation frame 4 has two iight. emission openings which are arranged adjacent to each other and which are covered in each case by a hood 7 provided at the rear. On the side towards the aperture each hood 7 is provided on the end region thereof facing the installation frame 4 with a continuous flange edge 15 by which it is set against the installation frame 4 in a manner surrounding the light emission opening thereof_ For fixing purposes and in order to obtain. the rotary movability of the hood 7 about the centre axis 9 relative to the installation frame 4, detachable holding means in the form of a plurality of can screws 18 are brovided, which are screwed with the shank thereof beside the flange edge of the hood 7 into the material of the installation frame 4, in which case they cover in part the flange edge with their head, This ensures the fixing of the parts to one another: on the:one hand and the rotary movability of the hood about the centre axis 9 on the other hand-This arrangement is simple to produce and to assemble_ The invention is not limited to the embodiments but is variable in numerous ways within the scope of the disclosure.

recessed ceiling lioht installation opening false ceiling installation frame _dInc means centre axis inq source notional extension of collar annular body can screws