EP2093478B1 - Integrated lights - Google Patents

Description

The present invention relates to a recessed luminaire for installation in a suspended ceiling or the like according to the preamble of claim 1.

Recessed lights of this type for installation in a suspended ceiling, thin wall o. The like. Are known in different configurations. They have a lamp body that can be inserted into a ceiling opening from its rear end. In this case, a veneer is provided at the light exit opening of the lamp body, which projects beyond the outer edge of the lamp body, so that the ceiling opening is hidden, and also forms an axial stop for the lamp during installation. The fixation of the known recessed lights on the ceiling is usually done by a plurality of double torsion springs, which are mounted along the circumference of the lamp body and in the assembled state of Recessed light in the ceiling in which they are mounted, engage behind under elastic deformation and pull the veneer against the ceiling front.

In these known recessed lighting is considered partly disadvantageous that the known recessed lights can be converted only with effort. If, for example, instead of a recessed luminaire with a stationary illuminant, a recessed luminaire with a horizontal illuminant is desired, it is necessary to replace the entire recessed luminaire. The same applies if u. U. after a wall painting the color of the veneer to be changed.

To counter this problem, is in the EP 1 455 835 B1 proposed a recessed luminaire, in which the lamp body is divided into a facing and carrying the holding elements bearing mounting ring and a lamp holder carrying light unit, which is detachably connected to the mounting ring such that the mounting ring with mounted recessed light from the light unit and thus the light unit can be replaced separately without tools.

A generic recessed light is from the US 5,951,151 A known. In this recessed luminaire, the fixation of the lamp is carried out on a heat shield by the plugs of the bulb are inserted into corresponding openings of a socket and fixed there by clamping. Different vertical positions of the bulb can not be realized unless one uses a heat shield of different shape and size.

Furthermore, the shows US 5, 548, 499 A a generic lamp in which the lamp is screwed directly into a socket. A change in the position of the bulb relative to the inner housing is not possible.

In the known recessed lighting, it is expensive to replace a light unit with a light unit of another type having other dimensions.

Object of the present invention is to provide a recessed luminaire of the aforementioned type so that it can be easily converted.

This object is achieved by the characterizing features of claim 1.

The invention is therefore based on the consideration not to fix the light unit to the mounting ring directly, but via a support frame, which defines a mounting space for the light unit and receives them. The mounting space is of such a size that it can accommodate all the different types of lighting units to be used with the recessed luminaire. Since, according to the invention, the light units are provided by means of the fastening means provided on the upper side of the support frame - i. From above - are mounted on the support frame, it is easily possible to mount light units of different types in the support frame.

According to the invention, the struts are connected in their upper end region by a flat cover plate of the support frame, on which the fastening means are also provided. The cover plate can have a central heat removal opening to improve the heat dissipation, wherein it is then expediently annular in adaptation to the shape of the mounting ring.

The fastening means are formed as holes through which the light unit can be screwed to the support frame. In this case, it is only necessary to provide on the holder of the light unit, the holes corresponding mounting holes. It can then be conveniently mounted light units of different types on the support frame. It is only necessary to ju-steer the distance of the holder from the cover plate of the support frame. For this purpose, spacers of predetermined length, which are placed on the mounting screws used.

According to one embodiment of the invention, it is provided that the support frame has a plurality of struts, in particular distributed uniformly over the circumference of the mounting ring, which struts in particular at its lower region are connected to the mounting ring and carry at its upper region, the fasteners. This open design of the support frame has the advantage that parts of the light units mounted therein can pass between the struts and therefore the design of the light units are not or only slightly affected by the dimensions of the support frame. Furthermore, the developing heat can be easily dissipated.

In a further embodiment of the invention it is provided that the support frame has at its lower end region facing the mounting ring a base ring which connects the lower ends of the struts with each other. In this way, the support frame forms a compact and stable unit. In particular, the mounting of the support frame on the mounting ring can be made via the base ring. This assembly can be done directly. In an alternative embodiment of the invention, however, it is provided that the support frame is fixed to the mounting ring via an intermediate ring which is detachably connected in the mounting ring from its underside and releasably connected to the mounting ring. The detachable connection can be made in particular via a clamping or locking mechanism. For example, at the intermediate ring at its upper end portion carries a plurality of latching noses which engage over the upper edge of the mounting ring detent when the intermediate ring is inserted into the mounting ring from the underside thereof. In a round design of the recessed luminaire, this embodiment has the advantage that the intermediate ring can be rotated about the longitudinal axis of the recessed light relative to the mounting ring.

In known manner, the light unit should be pivotable relative to the mounting ring. This is expediently, the support frame is pivotally attached to the mounting ring via bearing bolts. When using an intermediate ring is provided in a preferred manner that the support frame is pivotally mounted on the intermediate ring via bearing pin, so that no special precautions must be taken to fix the intermediate ring on the mounting ring. In this case, the support frame preferably has sleeves, which are penetrated by the bearing bolts.

The recessed light may further comprise a filter retaining ring which is inserted into the mounting ring or in the intermediate ring and can be releasably fixed to the support frame by means of a clamping mechanism. In particular, the filter retaining ring, the bearing pin, via which the carrier pin is pivotally mounted on the mounting ring or the intermediate ring, or the sleeves corresponding recesses and are provided on the filter retaining spring elements to clamp the bearing pin or sleeves in the recesses clamping. The arrangement can be made so that the filter retaining ring can be moved pivotally relative to the sleeves.

Expediently, it is provided that the holding force of the clamping mechanism, via which the intermediate ring and the mounting ring are interconnected, is stronger than the clamping mechanism, via which the filter retaining ring is fixed to the intermediate ring, so that upon release of the filter retaining ring not also the connection of the light unit is separated from the mounting ring.

Finally, at the upper side facing away from the mounting ring of the support frame, a spacer may be provided which defines a minimum required clearance above the support frame. In this way, it is ensured that the recessed luminaire according to the invention can be installed only in such a wall or ceiling, in which sufficient space is available and can not develop heat buildup.

Moreover, it is provided according to a preferred embodiment that the support frame consists of a heat-storing material such as aluminum. In this case, the support frame can absorb heat generated by the light unit in operation.

Figur 1

eine Ausführungsform einer erfindungsgemäßen Einbauleuchte in perspektivischer Explosionsan- sicht;

Figur 2

die Einbauleuchte aus Figur 1 in einer Schnitt- ansicht,

Figur 3

eine alternative Ausführungsform einer erfin- dungsgemäßen Einbauleuchte in perspektivischer Explosionsansicht und

Figur 4

die Einbauleuchte aus Figur 3 in einer Schnitt- ansicht.

With regard to further advantageous embodiments of the invention, reference is made to the dependent claims and the following description of an embodiment with reference to the accompanying drawings. In the drawing shows

FIG. 1

an embodiment of a recessed luminaire according to the invention in a perspective exploded view;

FIG. 2

the recessed light off FIG. 1 in a cut view,

FIG. 3

an alternative embodiment of an inventive recessed luminaire in a perspective exploded view and

FIG. 4

the recessed light off FIG. 3 in a sectional view.

In the FIGS. 1 and 2 a first embodiment of a recessed luminaire 1 according to the present invention is shown, which can be installed in an opening of a suspended ceiling, a thin wall o. The like. Not shown. The recessed luminaire 1 has a luminaire body which can be inserted into the ceiling opening and is formed by a light unit 3 containing the lighting technology and a mounting ring 4.

The mounting ring 4 has a cylindrical basic shape with an outer diameter which is chosen so that it can be inserted into a corresponding round ceiling opening. The mounting ring 4 defines on its underside a light exit opening, around which the mounting ring 4 carries a flange-like outwardly facing facing 5. To fix the mounting ring 4 on the ceiling, two elastic retaining elements 6 are provided on the mounting ring 4, which are positioned diametrically opposite one another and in each case a stop plate 7 and a leaf spring-like tongue element 8 attached thereto have, wherein the tongue elements 8 in the assembled state, the wall or ceiling, in which the recessed light is installed 1, engage behind and pull the veneer 5 against the ceiling front.

In the illustrated embodiment, the recessed luminaire 1 is round. Of course, another design is also possible. Thus, the recessed light with light unit 3 and mounting ring 4 also have a rectangular, square or oval shape.

The light unit 3 comprises a reflector 9 - here a reflector 9, which generates a so-called Batwing light distribution - which is open at its underside and a lamp holder 10 for an unillustrated horizontal illuminant, which is positioned in the upper region of the reflector 9, wearing. The reflector 9 and the lamp holder 10 are fixed to a holder 11, which is arranged above the reflector 9. Furthermore, the light unit 3 includes a supply plug 12 for connection to an electrical supply unit.

The light unit 3 thus formed is provided in a mounting space of a support frame 13 which surrounds the light unit 3. The support frame 13, which consists of a heat-storing material such as aluminum and is designed here as an aluminum die-cast part, is supported by a lower, the reflector 9 in the region surrounding its light exit opening base ring 14, an upper, also annularly shaped cover plate 15 and four extending between the base ring 14 and the upper cover plate 15, approximately offset by 90 ° from each other arranged struts 16 formed. On this support frame 13, the light unit 3 is mounted on the provided at the top of the reflector 9 holder 11. Specifically, two mutually corresponding mounting holes 17, 18 are formed in the cover plate 15 of the support frame 13 and the holder 11 of the light unit 3. These two pairs of mounting holes 17, 18 are penetrated by fastening screws 19 which are inserted from the top of the cover plate 15 in the mounting holes 17, 18 and fixed by fastening nuts, not shown. In this case, the distance between the cover plate 15 and the holder 11 is defined by spacers 20, which are arranged between the cover plate 15 and the holder 11 and are penetrated by the fastening screws 19. In this way it is ensured that the light unit 3 is exactly positioned in the support frame 13.

The assembly of the light unit 3 on the mounting ring 4 via an intermediate ring 21 which surrounds the base ring 14 of the support frame 13 and can be inserted into the mounting ring 4 from below. The intermediate ring 21 carries at its upper end two diametrically opposed locking lugs 22, which engage behind the upper edge 23 of the mounting ring 4 resiliently when the intermediate ring 21 is inserted into the mounting ring 4 from the underside thereof becomes. This embodiment has the advantage that the intermediate ring 21 can be rotated relative to the mounting ring 4 about the longitudinal axis of the recessed luminaire 1.

The support frame 13 is pivotally supported on the intermediate ring 21. Specifically, a few of a pivot axis X defining bearing pin 24 are provided, which connect the intermediate ring 21 and the base ring 14 with each other and pass through sleeves 13, which are molded onto the support frame 13.

To the recessed luminaire 1 finally includes a filter retaining ring 25 whose outer diameter is chosen so that it can be inserted into the intermediate ring 21 from the underside thereof. The filter ring 25 has two recesses 26, which engage with the sleeves 13 a of the support frame 13 when the filter retaining ring 25 is inserted into the intermediate ring 21. especially the FIG. 1 can be seen, 26 U-shaped spring members 27 are arranged in the region of the recesses with upward opening, which are elastically expanded when the recesses 26 engage with the sleeves 13 a, and clamp the sleeves 13 a by their elastic restoring force. The elastic spring force is chosen so that the filter retaining ring 25 is also pivoted in a pivoting movement of the support frame 13 and thus the light unit 3 relative to the intermediate ring 21. At the same time, the spring force should be less than the clamping force with which the intermediate ring 21 is fixed in the mounting ring 4, so that the filter retaining ring 25 can be deducted from the intermediate ring 21, without the intermediate ring 21 detached from the mounting ring 4.

Finally, an inverted U-shaped spacer 28 is provided at the top of the support frame 13, which specifies a minimum clearance, the recessed luminaire 1 must have in the installed state.

The recessed luminaire 1 according to the invention can be mounted in a simple manner. For this purpose, first the mounting ring 4 is inserted into the opening of a ceiling, not shown. The elastic support members 6 are compressed until their tongue elements 8 in the fully inserted state behind the wall or ceiling, in which the recessed light 1 is installed, behind and pull the veneer 5 against the ceiling front. Subsequently, the intermediate ring 21 is inserted with the support frame 13 and the light unit 3 held in the mounting ring 4 until the locking lugs 22 engage in the recesses 23 of the mounting ring 4 and so the intermediate ring 21 is clamped to the mounting ring 4. Finally, the filter retaining ring 25 is inserted into the intermediate ring 21, and fixed on the bearing pin 24 via the spring elements 27 in the region of the recesses 26.

When the light unit 3 is to be replaced, the intermediate ring 21 with the light unit 3 can be easier be solved by the mounting ring 4 by the locking connection between the locking lugs 22 and the recesses 23 is released. To replace the light unit 3, it is only necessary to release the two fastening screws 19, via which the light unit 3 is fixed to the support frame 13. Subsequently, a new light unit 3 can be fixed. If this has other height dimensions, it is only necessary to use spacers 20 and mounting screws 19 with a corresponding height.

For example, in the Figures 3 and 4 an embodiment of a lamp according to the invention shown, in which the reflector 9 is significantly higher than the reflector 9 of the first embodiment, which in the FIGS. 1 and 2 is shown. For this reason, the fastening screws 19 and the spacers 20 are formed significantly shorter.

Claims (17)

1. A built-in light to be fitted in a suspended ceiling or similar, with a mounting ring (4) insertable into an opening in the ceiling and fixable by holding elements (6) and a light unit (3) which is attached in particular releaseably to the mounting ring (4), wherein fixed to the mounting ring (4) is a support frame (13) which defines a mounting space for the light unit (3) and has on its upper side facing away from the mounting ring (4) attached means (18) for fixing the light unit (3) onto the support frame (13), characterised in that the attachment means (18) are in the form of bore holes (18) in an upper cover plate (15) of the support frame (13), and mounting bore holes (17) corresponding to the bore holes (18) are provided on a holder (11) of the light unit (3), attachment screws (19) passing through the bore holes (18) and mounting bore holes (17) by means of which the light unit (3) is fixed to the support frame (13), wherein the distance between the holder (11) of the light unit (3) and the cover plate (15) of the support frame (13) is adjusted by means of spacer elements (20) of pre-specified length, which are placed on the attachment screws (19).
2. The built-in light according to Claim 1, characterised in that the support frame (3) has a number of struts (16) arranged in particular evenly distributed around the periphery of the mounting ring (4) and which in their lower region in particular are connected to the mounting ring (4) and in their upper region carry the attachment means (18).
3. The built-in light according to Claim 2, characterised in that the attachment means (18) are provided on a flat cover plate (15) of the support frame (13) which connects the struts (16) in their upper end region.
4. The built-in light according to Claim 3, characterised in that the cover plate (15) has a central heat discharge opening.
5. The built-in light according to Claim 4, characterised in that the cover plate (15) is annular in form.
6. The built-in light according to any of the preceding claims, characterised in that in its lower end region facing towards the mounting ring (4) the support frame (13) has a base ring (14) which connects the lower ends of the struts (16) and in particular is fixed to the mounting ring (4).
7. The built-in light according to any of the preceding claims, characterised in that the support frame (13) is pivotably fixed onto the mounting ring (4).
8. The built-in light according to Claim 7, characterised in that the support frame (13) is fixed onto the mounting ring (4) by means of an intermediate ring (21) which can be pushed into the mounting ring (4) from the lower side of the latter and is connected, in particular releaseably, to the mounting ring (4) by means of a clamping or detent mechanism.
9. The built-in light according to Claim 8, characterised in that in its upper end region the intermediate ring (21) carries a number of detents (22) which lock engage over the upper edge of the mounting ring (4) when the intermediate ring (21) is pushed into the mounting ring (4) from the lower side of the latter.
10. The built-in light according to Claim 7, 8 or 9, characterised in that the support frame (13) is attached pivotably to the mounting ring (4) or to the intermediate ring (21) by means of bearing pins (24).
11. The built-in light according to Claim 9, characterised in that bushings (13a) are provided on the support frame (13) through which the bearing pins (24) pass.
12. The built-in light according to any of the preceding claims, characterised in that a filter holding ring (25) is provided which can be pushed into the mounting ring (4) or the intermediate ring (21) and can be releaseably fixed onto the support frame (13) by means of a clamping mechanism.
13. The built-in light according to Claims 11 and 12, characterised in that the filter holding ring (25) has recesses (26) corresponding to the bushings (13a) and spring elements (27) are provided on the filter holding ring (25) in order to clamp fix the bushings (13a) in the recesses (26).
14. The built-in light according to Claim 13, characterised in that the recesses (26) in the filter holding ring (25) are formed such that the bushings (13a) are pivotably moveable in the latter.
15. The built-in light according to Claim 9 and any of Claims 12 to 14, characterised in that the holding force of the clamping or detent mechanism by means of which the intermediate ring (21) and the mounting ring (4) are connected to one another is stronger than the clamping mechanism by means of which the filter holding ring (25) is fixed to the intermediate ring (21).
16. The built-in light according to any of the preceding claims, characterised in that on the upper side of the support frame (13) facing away from the mounting ring (4) a spacer (28) is provided which defines a minimum required clearance above the support frame (13).
17. The built-in light according to any of the preceding claims, characterised in that the support frame (13) is made of a heat-storing material, and in particular aluminium.

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