Deckeneinbauleuchte sowie Gehäuse für eine Deckeneinbauleuchte

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[0001] The invention relates to recessed lighting fixtures for installation in an opening of a suspended ceiling, wherein the ceiling lamp has a lamp housing and a light exit opening; further the invention relates to a housing for such a recessed ceiling lighting fixture.

[0002] it is well known, in a room having a floor and one of the spatial region between the raw ceiling and the suspended ceiling this suspended ceiling for accommodating technical equipment to use. Devices for lighting the room are leaving Arrange here, for example, as well as devices for transporting away or. Forwarding of air is derived from a space below the suspended ceiling, therefore exhaust air devices.

[0003] State of the Art is carried over from the known a so-called exhaust air-lamp with housing is designed so that air, coming from the chamber area below the exhaust air-Luminaire the area of space between the raw ceiling and by the lamp housing and into the suspended ceiling can pass. To this air flow through the lamp housing to allow, the exhaust air must satisfy-Luminaire corresponding framework conditions. This the creative possibilities are the exhaust air-Luminaire limited.

[0004] The invention is based on the problem, specify a corresponding improved recessed ceiling lighting fixture; in particular the recessed ceiling lighting fixture is to allow said air flow from the space under the suspended ceiling into said tween deck range in a suitable manner, but have improved creative possibilities. Also a housing for a corresponding recessed ceiling lighting fixture is to be specified.

[0005] This problem is solved according to the invention in the independent claims with the mentioned objects. Particular embodiments of the invention are recited in the dependent claims.

[0006] a recessed ceiling lighting fixture for installation in an opening of a is the invention Pursuant suspended ceiling provided, wherein the recessed ceiling lighting fixture having a lamp housing and a light exit opening. Also the recessed ceiling lighting fixture with at least one side next to the light exit opening disposed air passage openingair passage element points a on, wherein the recessed ceiling lighting fixture, here also referred to as simply "lamp" briefly is designed in such a way that in the installed state air from a first chamber area below the suspended ceiling air passage opening can flow into a second chamber area through the at least one, extends above the suspended ceiling adjacent the light housing.

[0007] This is arranged laterally next to the light exit opening that the air passage element , to use, for example, an optical element in the light exit opening is increasing, without broadening the desired air guide is restricted. In the optical element can be, e.g., a plate-shaped it, light transmissive light withdrawal element act. In this way the creative possibilities are improved for the lamp. Furthermore is increasing with respect to the outer appearance of the built-in lamp air passage element the particularly unobtrusive shape, for example so that it forms a kind of joint with the lamp housing. Improve the appearance of the entire ceiling is increasing In this way, because on corresponding separate exhaust air-guide elements can be dispensed with.

[0008] a translucent light withdrawal element arranged in the light exit opening is preferably, wherein the light exit opening is covered by the preferably light withdrawal element in particular completely. In this way, on the one hand, the light output of the lamp is on the other hand, the outer appearance of the lamp and make suitable influence suitable.

[0009] a light-emitting surface on the light withdrawal element It is preferred, at least in the first approximation is planar and which preferably at least substantially in a plane in the installed state with a downwardly facing surface area of the suspended ceiling is arranged aligned. This even-moderate outer appearance achieve a particularly is increasing. The Luminaire "integrate", as it were, into the ceiling can be thereby.

[0010] Preferably, the shape in such a way that in the installed state of the lamp on the one hand and an edge region of the fitting opening between the light withdrawal element the air passage element is arranged on the other hand. The recessed ceiling lighting fixture as a whole is comparatively small make In this way.

[0011] light withdrawal element preference, the oblong-shaped, so that it extends along a longitudinal axis. In this way is especially suitable as a light band optical pattern system make the lamp or as part of a. air passage elementlight withdrawal element It is further preferably parallel to the arranged the. This inconspicuous design is to allow a particularly.

[0012] air passage element by an extrusion member formed of preference, the.

[0013] These is advantageously good.

[0014] is preferably integrally connected to the lamp housing or as a separate component the air passage element formed. In both cases, a suitable simple production is allows the luminaire.

[0015] a step formed by the lamp housing is preferably, wherein said at least one in a air passage opening is formed by the gradation step formed. This is increasing the Lamp with particular smaller light passage element particularly unobtrusive design the shape and configuration.

[0016] Preferably the luminaire further comprises a spoiler member on is designed to, air passage opening to direct air from the first chamber area to the at least one. Such a spoiler member can be improve the flow conditions. For example is increasing on make this way, noise caused by the air flow is that a comparatively quiet. But the appearance of the lamp can be offset by the air guide element make also. Advantageous points for directing the air to the air guide element lamellae.

[0017] Preferably, the air guide element to a perforation. These is advantageously good; in particular is suitable as extrusion component make in this case the air guide element.

[0018] Preferably, the lamp designed in such a way that the is held by the air guide element disposed light withdrawal element.

[0019] and the air guide element, in a single piece formed light withdrawal element Preferably, the, preferably as an extrusion member.

[0020] air passage element held by the the lamp housing is preferably disposed.

[0021] a air passage element[...] formed by the It is preferred.

[0022] In accordance with a further aspect of the invention is a housing for a recessed ceiling lighting fixture for installation in an opening of a suspended ceiling provided, wherein the housing has a lamp housing and a light exit opening. Also the housing has on the side next to the light exit opening arranged with at least one a air passage elementair passage opening , wherein the housing is designed in such a way that in the [...]"

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installed state of a first region of space below the suspended ceiling air air passage opening can flow into a second chamber area through the at least one, extends above the suspended ceiling adjacent the light housing.

[0023] Incidentally, can be shaped in accordance with the above remarks the housing.

[0024] The invention is explained hereinafter with reference to an embodiment and with reference to the drawings. It show:

[0025] a cross-section-Sketch to a first embodiment of a the invention 1 Fig. Ceiling-recessed light fixture,

[0026] a corresponding Sketch to a second embodiment 2 Fig.,

[0027] 3 to a third embodiment and a corresponding Sketch Fig.

[0028] a fourth embodiment 4 a sketch to Fig..

[0029] 1 a cross-section to a first embodiment is-Sketch In Fig. the invention shown a recessed ceiling lighting fixture. The "lamp" denotes-is also, briefly, as a recessed ceiling lighting fixture-here a fitting opening 1 designed for installation in a suspended ceiling. The suspended ceiling (not shown in Figures) 1 may in particular be suspended from a crude ceiling.

[0030] 2 on light fixture presents a lamp housing The, and a light exit opening, in particular by the light fixture, for example, as outlined in example 1 Fig., 2 may be formed by the lamp housing. The lamp housing 21 and a vertically oriented first side wall 2 preferably has a particularly, preferably analogously shaped second side wall 22 on to the latter. As in Fig. indicated 1, the light exit opening by lower end regions can 211, 221 of the two said side walls 21, 22 be limited. Preferably, 2 has a substantially U-shaped cross-section on the lamp housing, wherein said side walls form 21.22 the two U-leg.

[0031] the light unit 4 comprises a side next to the light exit opening disposed also air passage elementair passage opening 41 is designed with at least one. Heat to Luminaire that, if the lamp is installed in the installation opening as provided, air from a first chamber area below the suspended ceiling 1 through the at least one R1 in R2 can flow a second chamber area 41 air passage opening , the extends above the suspended ceiling 2 1 next to the lamp housing.

[0032] In this way achieve is increasing that air from the first chamber area below the suspended ceiling 1 R1 for air exchange of the space located in the second chamber area R2 be female, so that thereby a remove exhaust air can be effected. 41 dimensioned air passage opening is therefore preferably the at least one decorated that a correspondingly desired air throughput can be realized. Preferably, the design is such that an opening having a cross-sectional area through the at least one of a total of at least 1 cm^{2 air passage opening 41 is} formed, preferably from a total of at least 5 cm^2.air passage opening 41 by a plurality of, for example, the can at least one, preferably be formed uniformly shaped louvers, have a width of at least 1 mm in each case the, preferably at least 2 mm and a length of at least 5 mm, preferably of at least 8 mm.

[0033] This is arranged laterally next to the light exit opening 4 that the air passage element , Arrange a further component of the lamp in the light exit opening is increasing in particular, for example, as in 3 3 1 outlined-a translucent light withdrawal element Fig. light withdrawal element can here be arranged. The that it covers the light exit opening, in particular completely covers. Moment light withdrawal elementeven-moderate appearance of the lamp 3 is in particular a particularly achieve, a desired light influence and a protecting an inner space of the lamp or of the lamp housing 2.

[0034] 3 can, for example, be designed in the shape of a plate light withdrawal element The. It 31 can have an at least in a first approximation, flat shaped light-emitting surface.

[0035] When here shown embodiment, (not shown in Figures) the light fixture presents further comprises a light source for producing a light on is disposed within the luminaire housing 2. It the design is such that the light from the lamp 3 is delivered via the light withdrawal element , in particular on the light-emitting surface 31. so here preferably, the design is that the light-emitting surface 31, when the lamp is installed in the installation opening as provided, with a downwardly facing surface area 11 of the suspended ceiling 1 is aligned at least substantially in a plane arranged E. This cover-concisely in the suspended ceiling 1 integrate the lamp is almost.

[0036] The air passage element 4 is here preferably designed in such a way that the at least one is formed 41 above the plane E air passage opening , for example in a further plane E ', which is above and extends parallel to the first-mentioned plane E. In particular the design can be such that the further plane E 12 of the suspended ceiling 1 by an upwardly facing surface area approximately is established. The further plane, for example, can have a vertical plane with the first mentioned E E distance a, between 0.5 cm and 5 cm is the, preferably between 1 cm and 3 cm.

[0037] As in Fig. 1 outlined is here shown embodiment, provided upon that the 3, on the one hand, and an edge region 4 between the 5 air passage elementlight withdrawal element is arranged, on the other hand, of the fitting opening. This allows as a whole particularly space-saving execution.

[0038] 3 light withdrawal element preference, the oblong-shaped, so that it extends along a longitudinal axis. In Fig. outlined is a corresponding cross-section normal to the longitudinal axis 1. The light withdrawal element 3 activity can be designed as a profiled part advantageously good. The air passage opening 41 activity can be advantageously formed by stamping at least one good.

[0039] When shown embodiment, the light fixture is generally elongate, extends so as to extend along the longitudinal axis. The lamp is a light band or it can act, in particular, a component of a optical pattern system. The air passage element 4 here is preferably also elongate, wherein it is arranged in parallel with the 3 light withdrawal element.

[0040] If that is directly adjacent to the first side wall 4 in a horizontal section viewed air passage element 21 of the lamp housing 2 is arranged adjacent, particularly inconspicuously make it can be optically.

[0041] 4 further comprises a flange portion 42 on air passage element Preferably, the, the has is designed for attachment to the suspended ceiling 1, for abutment against the downwardly facing surface area, for example, as a mounting flange 11 of the dropped ceiling 42 designed 1st Preferably, said flange portion, to have a downwardly facing horizontal surface area, extends at least substantially in the plane of the light-emitting surface 31 E. For example, be provided that this downwardly facing surface area of the flange portion 42 has a maximum vertical distance to the plane 31 E the light-emitting surface is smaller than 5 mm, preferably less than 3 mm.

[0042] In particular the design can be such that between the and the edge region 5 of the fitting opening 3 light withdrawal element 2 4 a joint is formed by the lamp housing and the air passage element , through which the air from the first chamber area R1 R2 can flow into the second chamber area. This joint can be formed in comparison to a known shadow gap slightly larger, so that to the extent that said air flow is made possible to a desired degree.

[0043] In the shown example the joint has, in a cross-section normal to the longitudinal axis

-that is, corresponding to the representation of the 1.-a downwardly open Fig., U-shaped cross-section on, so as to provide an outer and an inner U-leg 46 47 has U-leg, and a, these two U-legs 46, 47 is at least one connecting limb air passage opening. 45 41 formed in the latter the. The two U-legs 46, 47 are preferably substantially vertically oriented and the connecting leg 45 horizontally.

[0044] The length of the U-legs 46, 47 can therefore said vertical distance a between the plane E and correspond to the further plane E. The inner U-legs 47 can, as in the indicated 1 Fig., through a lower end portion of the first side wall 21 of the lamp housing 2 can be formed.

[0045] The joint can have a width b, for which the following relation applies: a/5 < b < 2a, preferably a/3 < < b a.

[0046] 4 can be formed integrally with the lamp housing 2 connected air passage element The, for example integrally joined. It but can alternatively also be formed as a separate component.

[0047] 4 and the lamp housing 2 as parts of a housing can air passage element The in the sense of a "total-housing" for a corresponding recessed ceiling lighting fixture be seen. This housing 3 or 4 is opposite the air passage element Moment light withdrawal element 2, as it were, "actual" widened with respect to the lamp housing. Here air passage element a quasi 4 is formed by the vane-region of the housing.

[0048] Preferably, through the housing 2 and the 4 a step formed by the lamp housing or air passage element , wherein said at least one in a air passage opening 41 is formed by the gradation step formed. A particularly space-saving design is of the lamp enables In this way.

[0049] Through the step 45 of the joint can be formed in particular the aforementioned connecting leg.

[0050] At an outer edge region of the stage 4 formed by the can of which thus join air passage element 46 of the joint U-leg outer, the flange portion 42 at its lower edge region merges into the preferably horizontal. A built-in frame of the lamp 4 can be formed in particular by the air passage element.

[0051] In Fig. 2 a second embodiment is one according to the invention outlined Luminaire. Where hereinafter referred to as not otherwise stated, the above remarks also apply with respect to the second embodiment corresponding to. The reference symbols are, as with the subsequent further embodiments, each analog needed.

[0052] The second embodiment shows a continuing air guide element 6 on the lamp is designed to, air from the first chamber area 41 to direct to the at least one R1 air passage opening. This attempting to achieve improved flow conditions in particular. For example is increasing effect that the air flow is particularly quiet. 6 the outer appearance of the lamp is also advantageously influence by the air guide element.

[0053] The lamp housing 2-2 can also-to differ from the representation in Fig. be designed in this embodiment that the first side wall 21 of the lamp housing extends downwardly 2 up to the edge of the light exit opening 3 or to to the light withdrawal element.

[0054] Alternatively, the design may be the case that-as indicated-the first side wall 21 of the lamp housing 2 in Fig. 2 extends up to the edge of the light exit opening not downwards, but terminates above thereof, for example at the level of the at least one further plane air passage opening 41 or respectively of the e '. Am outer edge of the step 4, the downwardly pointing limbs on a vertically air passage element here in turn, merges 1 shown is the one used in the outer U-leg 46 of the joint and the Fig. at its lower portion into the flange portion 42. The air passage element 6 here is preferably at the 4 arranged air guide element, in particular fixed, for example by means of a locking connection. In this way allows especially simple assembly is in.

[0055] 6 points in the process are preferably provided a downwardly open U-shaped cross-section airfoil The on, such that one of the first-mentioned joint is formed by the air guide element 6 corresponding joint here.

[0056] The air passage opening by the air guide element 41 can be at least 6 to a certain extent a disguise.

[0057] Preferably, the air guide element 6 formed of plastic.

[0058] If the air guide element 6 is elongated, can be formed by the air guide element 6, as it were, a exhaust air-strip.

[0059] The air guide element 61 or 6 can, for example, vanes for directing the air. Have webs. Through these lamellae in terms of flow from the first chamber area 61 can advantageously flow channels for the air flowing into the second chamber area R1 R2 be formed. The lamellae 61 can-viewed along said longitudinal axis, for example have a mutual distance of at least 5 mm.

[0060] The in the shape in such a way is shown example 2 Fig., light withdrawal element 6 is held by the air guide element 3 arranged that the. In this way is advantageously particularly easily make good the lamp housing 2.

[0061] In Fig. 3 a third embodiment according to the invention is outlined a lamp. Where hereinafter referred to as not otherwise stated, the above remarks apply to the second embodiment with respect to the third embodiment accordingly also.

[0062] The third embodiment instead of the 6 faces in the second embodiment, the air guiding element 65 on a perforation blades shown, through which the air can flow. In this way the manufacture of the air guiding element 6 is possible particularly easily, because it may be designed as an extrusion component, i.e. with in principle any desired length.

[0063] 6 can comprise the slats 61 and the spoiler member Generally/or the perforations 65.

[0064] Furthermore, it can be provided that the 6 3 and the air guide element are formed in a single piece light withdrawal element , for example, materially bonded to one another, in particular as extrusion component. Also preferably in this case is the design so that-advantageously with respect to the assembly of the lamp-the corresponding component fastenable to the light housing in one working step 2.

[0065] especially advantageous as a bicomponent extrusion component designed is said component, the first component and the air guide element by 6 light withdrawal element 3 wherein the second component is formed by the.

[0066] In 4 a fourth embodiment is one according to the invention outlined Luminaire Fig.. Where hereinafter referred to as not otherwise stated, the above remarks also apply with respect to the fourth embodiment, in turn, mutatis mutandis.

[0067] As shown in this embodiment, the lamp housing can be arranged by the 4 held air passage element 2. To this end, a horizontally oriented bearing leg air passage element 4 can have, for example, the 49 for supporting the first side wall 21 of the lamp housing 2.

[0068] air passage element[...] can also the 4 a. [...] have 48, which preferably is formed at the inner edge of the flange portion 42. After securing of the flange portion 42 on the downwardly facing surface area 11 of the quenched [...]"

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hung ceiling 48 towards [...] 1 can be cast material to apply to this. The [...] 48 can be shaped when viewed in cross-section than three quarter circle.

[0069] 48 may also be provided in the other embodiments A corresponding [...].

[0070] 48 extends upwardly from the and then merges [...]air passage element via a bend in the 4 the step over, 41 is formed in the at least one air passage opening. Underneath the stage 6 is arranged the air guide element, the 3 serves for holding the light withdrawal element. Beyond step the 4 points the said bearing leg air passage element 49 on. The air passage element 6, for example, by means of a locking connection to the air-guiding member is disposed 4 held.

[0071] On all shown embodiments the lamp with respect to a can, in 1 vertical median plane M outlined Fig., the extends in particular parallel to the longitudinal axis, on both sides by analogy, in particular be constructed symmetrically. Therefore, can therefore, for example, a further 4 air passage element 'and/or a further air guide element 6' be provided, come alive.