Combined lighting and air purification system

Abstract

Combined lighting and air purification arrangement (1) comprising a cleaning device (2) for cleaning ambient air, which has a housing (4) and means for cleaning air (22) arranged therein, and a lighting device (3) which is connected to and spaced apart from the housing (4), wherein the lighting device (3) surrounds the housing (4) on the outside at least over part of its circumference.

Description

[0001] The present invention relates to a combined lighting and air purification arrangement.

[0002] Air purification devices are used for various purposes. One possible application is in extractor hoods, which are primarily used in kitchens to extract fumes generated during frying, baking, and cooking. The extracted fumes are cleaned in the extractor hood and either discharged into the environment (extraction mode) or returned to the room air (recirculation mode). Specifically, suspended particles such as grease, volatile components, and / or odors are removed from the air stream.

[0003] Such cleaning devices may include a mechanical filter designed to capture cooking fumes and trap grease and dust particles. In addition to such mechanical filters, which are designed as fleece or mesh filters, modern extractor hoods also include additional odor filters made of activated carbon or a similar filter material. This is intended to prevent odorous substances contained in the exhaust air from being released back into the room air.

[0004] In addition, electrically operated filter and purification devices are used in extractor hoods, which can be designed as ionization or plasma filters. The exhaust air is directed into an ionization chamber. There, a high voltage is applied between an anode and a cathode, which ionizes the incoming gas. Ionization reduces odors because it can remove organic molecules from the air. It also inactivates viruses, bacteria, and allergens by breaking down their outer membranes, thus rendering mold and spores harmless. For odor molecules that cannot be removed from the air to be purified in the ionization chamber, an odor filter made of activated carbon and, if necessary, zeolite can be installed downstream of the ionization chamber.

[0005] A disadvantage of traditional extractor hoods is that they are located above the cooktop and require a relatively large amount of space in the kitchen. Furthermore, such extractor hoods are relatively complex to manufacture and install. Especially in freestanding kitchen units with cooktops, traditional extractor hoods often take up a lot of space and can be visually unattractive.

[0006] Another application for cleaning devices for ambient air is so-called air purifiers, which can be placed as floor-standing units in a room. These are typically passed through by air, which is then cleaned and, in particular, disinfected. Such air filters have proven particularly effective in minimizing the concentration of viruses and bacteria in the air. However, they also require a permanent place on the floor or on cabinets.

[0007] Against this background, the object of the present invention is to provide an alternative arrangement for air purification which in particular avoids the disadvantages mentioned above and can be arranged in a space-saving manner and is easy to manufacture.

[0008] This object is achieved by a combined lighting and air cleaning arrangement comprising a cleaning device for cleaning ambient air, which has a housing and means for cleaning air arranged therein, and a lighting device which is connected to the housing and spaced from the housing, wherein the lighting device surrounds the housing on the outside at least over part of its circumference.

[0009] The invention is based on the fundamental idea of ​​creating a combined arrangement that contains both a lighting device and a cleaning device for cleaning ambient air. In other words, a cleaning device is to be practically connected to a particularly suspended lighting device, so that it takes up little space and achieves an aesthetically pleasing, elegant design. Because the lighting device and the cleaning device are connected to each other but spaced apart, these two components can be manufactured separately and easily assembled into a single unit.Finally, such a design also enables an attractive external appearance and a flexible arrangement of the arrangement adapted to the respective local spatial and lighting conditions, since during assembly different cleaning devices can be combined in a practically modular manner with lighting devices of different dimensions and geometries.

[0010] In a further embodiment, the housing of the cleaning device can have an air inlet for drawing in ambient air on the side, in particular on a lateral peripheral wall, and an air outlet for expelling purified air on the side, in particular on a lateral peripheral wall. The ambient air to be purified flows through the air inlet into the interior of the housing and leaves it through the air outlet after passing through the air purification means.

[0011] Alternatively, it is also possible for an air inlet to be located in the underside or bottom wall of the housing. This may be advisable, for example, if the arrangement according to the invention is positioned directly above a cooking plate, as this allows for direct intake of the vapors generated during cooking. One or more air outlets can be provided on the side, particularly in a lateral peripheral wall of the housing. It is also possible for an air outlet to be located in the top of the housing.

[0012] In a specific embodiment, the air inlet and / or the air outlet can each have or consist of one or more air inlet and / or air outlet openings. A large number of smaller openings forming the air outlet and / or the air inlet can already achieve a coarse filtering effect, preventing larger particles from entering the housing. For example, the air inlet and / or air outlet openings can be designed as slits or elongated holes arranged parallel to one another in the housing and preferably extending vertically.

[0013] In a further embodiment, the air inlet and the air outlet can be arranged opposite one another on the housing. In this case, the ambient air to be cleaned is sucked in on one side of the housing, and the cleaned air is expelled on the opposite side of the housing. The air inlet and the air outlet are preferably arranged symmetrically opposite one another. The air inlet and / or the air outlet can be arranged in a section of the peripheral wall of the housing that runs in an arc shape, in particular in the shape of a circle, and can extend over a circumferential angle of at least 20°, in particular at least 40°, and / or at most 100°, in particular at most 80°, preferably at most 70°, 65°, or 60°, relative to the arc-shaped section.

[0014] Preferably, the lighting device surrounds the housing in a ring-shaped manner over its entire circumference. In other words, the lighting device can be designed in a closed ring shape and thus completely surround the housing of the cleaning device.

[0015] Alternatively, the lighting device can be interrupted at least once around the circumference. In this case, the lighting device is not designed to be closed in a ring-shaped, circumferential manner. In a further embodiment, the lighting device can be interrupted exactly twice around the circumference, wherein the interruptions in the lighting device are preferably arranged opposite one another with respect to the housing. In other words, the lighting device can comprise two lighting segments, each extending over a partial circumferential section around the cleaning device, with interruptions being formed between each of the segments. The interruptions form practically free spaces between the lighting segments. The two lighting segments can be manufactured as separate components, thus enabling simple production. The two lighting segments are preferably designed identically.This reduces the number of different parts to be manufactured. The ends of the lighting segments can be rounded at the transition from a top or bottom side to a front side adjacent to the interruption. End elements can be arranged at the ends of the lighting segments, forming these rounded sections. These end elements can be transparent or non-transparent.

[0016] Preferably, the interruptions in the lighting device are located (in the circumferential direction) in the region of the air inlet and the air outlet. This improves the inflow into the air inlet and the outflow of purified air from the air outlet. Specifically, the interruptions in the lighting device can be designed to overlap the air inlet and the air outlet in the circumferential direction, in particular, they can be positioned centrally (in the circumferential direction) relative to the air inlet and the air outlet.

[0017] According to a preferred embodiment, the interruptions in the lighting device are each located in a section of the lighting device that runs along a circular arc around the housing. In other words, the ends of the lighting segments can each run along a circular arc.

[0018] Specifically, the interruptions in the lighting device can each extend over an arc angle of at least 5°, in particular of at least 10°, preferably of at least 15°, and / or of at most 40°, in particular of at most 30°, preferably of at most 25°, particularly preferably over an arc angle of exactly 20°. The interruptions in the lighting device can have a light width of at least 50 mm, in particular of at least 75 mm, and / or of at most 200 mm, in particular of at most 150 mm. Such configurations of the interruptions enable, on the one hand, a favorable inflow of ambient air into the air inlet and a favorable outflow of air from the air outlet, and, on the other hand, lead to an attractive external appearance.

[0019] The housing of the cleaning device can have an at least substantially flat bottom wall, a particularly substantially flat top wall spaced apart from the bottom wall in a height direction, and a lateral peripheral wall connecting the bottom wall and the top wall. The top wall and the bottom wall preferably have the same geometry and / or extend parallel to one another. The housing can have a disc- or plate-shaped basic shape, i.e. the height of the peripheral wall is small relative to the diameter or size of the bottom wall and the top wall. The height of the housing, for example the distance between the bottom wall and the top wall, is preferably less than 120 mm, particularly less than 100 mm, preferably less than 80 mm, and / or at least 30 mm, particularly at least 40 mm, preferably at least 50 mm.

[0020] The housing can have a cylindrical basic shape with an oval base. This means that the lateral peripheral wall is formed in a ring-shaped manner along an oval and can extend perpendicular to the bottom wall or the top wall.

[0021] Specifically, the housing can have a circular arc-shaped base. In this case, the housing has a circular-cylindrical basic shape.

[0022] Alternatively, the housing can have two flat, preferably parallel, peripheral wall sections that are connected to one another by arcuate, in particular circular-arc-shaped, peripheral wall sections. In other words, a circular-arc-shaped peripheral wall section can have the contour of a shell segment of a circular cylinder. The two arcuate peripheral wall sections preferably adjoin the two flat peripheral wall sections tangentially. The housing can be symmetrical to one another along two axes of symmetry that extend perpendicular to one another, when viewed from above or from below. In this case, the air inlet and the air outlet can be arranged in the region of the arcuate peripheral wall sections, in particular (in the circumferential direction) centrally in the arcuate peripheral wall sections.

[0023] In principle, the housing can also have an at least substantially rectangular base. Preferably, the base is rounded at the corners. In this case, the housing has four flat peripheral wall sections, which are connected to one another, in particular, by rounded edges.

[0024] According to a preferred embodiment of the invention, the illumination device follows the outer contour of the housing. Specifically, the illumination device can extend along a circular arc around the cleaning device. If the housing has a circular cylindrical basic shape, i.e., a circular base, the housing and the illumination device are preferably arranged concentrically with one another.

[0025] Alternatively, the lighting device can have two rectilinear, in particular parallel, sections, at the ends of which arcuate, in particular circular arc-shaped sections adjoin each other. The arcuate sections can adjoin the rectilinear sections tangentially. Such a configuration preferably corresponds to a housing having two flat, parallel peripheral wall sections that are connected to each other by arcuate peripheral wall sections. However, such a lighting device can also be combined with a housing with a circular-cylindrical basic shape or a substantially rectangular basic shape.

[0026] If two interruptions of the lighting device are provided distributed over the circumference, each lighting segment can have a rectilinear section, to each end of which an arc-shaped, in particular a circular arc-shaped section is connected.

[0027] The lighting device can run along a curve or line that runs in a plane parallel to a floor or ceiling wall of the cleaning device housing. In other words, the lighting device can have the same height all the way around the cleaning device. It is also possible, particularly for design purposes or depending on the specific spatial conditions, to arrange the lighting device at an angle to the cleaning device. In this case, the lighting device can run along a curve or line that runs in a plane at an angle to a floor or ceiling wall of the cleaning device housing.

[0028] According to a preferred embodiment, the lighting device is designed symmetrically with respect to two mutually perpendicular planes of symmetry, which preferably extend in the vertical direction.

[0029] The lighting device can have a constant distance from the housing of the cleaning device around its circumference. It is also possible for the distance to vary around its circumference. The shortest distance around the circumference between the housing and the lighting unit can be at least 30 mm, in particular at least 50 mm, preferably at least 80 mm. The greatest distance around its circumference can be at most 500 mm, in particular at most 400 mm, preferably at most 300 mm. If the lighting device has two straight sections, in particular parallel to one another, at the ends of which circular arc-shaped sections are connected, the distances to the housing can vary around its circumference. In particular, lighting devices or cleaning devices of different sizes can be combined depending on the specific requirements regarding the performance of the cleaning device and the lighting conditions.

[0030] The space between the cleaning device housing and the lighting device can be completely open vertically. This means that no shielding or covering is provided in this area—apart from connecting bars that connect the lighting device and the cleaning device. Instead, air can flow freely vertically between the lighting device and the cleaning device housing. At the same time, this design results in an attractive appearance, as the lighting device practically floats around the cleaning device.

[0031] In a further embodiment, the cleaning device, in particular the housing of the cleaning device, and the lighting device can be connected to one another via at least one connecting web, in particular via a plurality of connecting webs, preferably via exactly four connecting webs distributed over the circumference of the housing. If the housing has a circular-cylindrical basic shape, i.e. a circular base area, the connecting webs can run radially relative to the center of the circular base area of ​​the housing. Specifically, four connecting webs can be provided distributed over the circumference, which are arranged around the housing, in particular offset by 90° to one another. The connecting webs can be arranged offset from the air inlet and / or the air outlet. The air inlet and / or the air outlet are preferably arranged centrally between two adjacent connecting webs.In other words, in this case, the center of the air outlet or air inlet can be offset by a circumferential angle of 45° from the adjacent connecting bars. Connecting bars distributed unevenly around the circumference are also possible. In principle, two, three, five, or six connecting bars are also conceivable, preferably evenly distributed around the circumference.

[0032] In particular, if the housing has two flat, preferably parallel, peripheral wall sections that are connected to one another by arcuate peripheral wall sections, the connecting webs can preferably extend in pairs parallel to one another from the flat peripheral wall sections toward the lighting device. In this case, too, a total of four connecting webs can be provided. The connecting webs then preferably extend toward the rectilinear sections of the lighting device.

[0033] Specifically, the connecting webs can be formed from a solid profile or a hollow profile. The connecting webs preferably have a rectangular cross-section and are screwed and / or integrally connected to the housing, in particular welded, glued, or soldered. The connecting webs can be screwed and / or integrally connected to the lighting device, in particular to a base profile of the lighting device, in particular welded, glued, or soldered. Other connections are also conceivable in principle, for example, via positive engagement contours, riveted connections, or the like.

[0034] The lighting device can comprise an elongated base profile. Such a base profile can be easily manufactured and shaped for the respective purpose according to the required contour of the lighting device. If multiple lighting segments are provided, several sections of a base profile can be easily shaped accordingly, enabling simple production.

[0035] In a further embodiment, the elongated base profile can have a receiving groove for a light source extending in the longitudinal direction of the base profile toward a top side and / or a bottom side. In other words, it is possible to insert a light source into the base profile from above or below. The base profile preferably has a constant cross-section along its length.

[0036] In a further embodiment, a light source, particularly an LED strip light, can be inserted into each mounting groove of the base profile. A strip light represents an energy-efficient lighting option. If the base profile has a mounting groove positioned at the top and bottom, this allows for direct downward lighting, for example, onto a tabletop or a hob, while simultaneously providing indirect upward lighting across the ceiling of a room.

[0037] According to a preferred embodiment, the base profile can have a height of at least 20 mm, in particular of at least 30 mm, preferably of at least 40 mm, and / or of at most 100 mm, in particular of at most 80 mm, preferably of at most 60 mm, particularly preferably a height of 50 mm. The base profile can have a width of at least 6 mm, in particular of at least 8 mm, preferably of at most 10 mm, and / or of at most 25 mm, in particular of at most 20 mm, preferably of at most 16 mm, particularly preferably a width of 12 mm. Such dimensions of a base profile lead, on the one hand, to a material-saving design of the lighting device and sufficient strength, and on the other hand, allow simple production of the lighting device, for example by forming production processes.

[0038] The base profile can be designed as a hollow profile and / or made of plastic, aluminum, or steel, particularly corrosion-resistant steel. Similarly, the housing of the cleaning device can be made of plastic, aluminum, or steel, particularly corrosion-resistant steel.

[0039] In a further embodiment, the lighting device can, when viewed from the side, overlap in the height direction with the cleaning device, in particular with a peripheral wall of the housing, and / or the lighting device can extend over the same height as the cleaning device. In other words, the lighting device, in particular its base profile, can be arranged at the same height as the cleaning device. Specifically, the entire arrangement, i.e. the lighting device and the cleaning device as a whole, can be designed symmetrically in the height direction around a central plane. The lighting device can be arranged in the height direction centrally to the cleaning device, in particular to the housing of the cleaning device, preferably centrally between a base wall and a ceiling wall of the housing.

[0040] Fasteners can be provided on the housing of the cleaning device, in particular exclusively on the housing of the cleaning device, preferably on a ceiling wall of the housing, to secure the assembly to a ceiling of a building. The fastening means can comprise several cables, allowing the assembly to be mounted freely suspended. Power lines can also be incorporated into the cables, or power lines can be connected to the cables or fastening means to supply power to the lighting device and the cleaning device.

[0041] The means for cleaning air may comprise a mechanical filter, in particular a fleece filter or a metal filter, and / or an activated carbon filter and / or a plasma filter unit and / or a fan for sucking in and expelling air.

[0042] Fleece filters can consist either of a tangled layer of wood (cellulose) and plastic (polyester / rayon) with a thickness of approximately 1 mm or of plastic fibers (polyester) with a thickness of approximately 5 mm. Fleece filters have good capillary and adhesion properties and are offered in the form of mats that are cut to the desired size before use. Metal filters or metal grease filters, also called mesh filters, can consist of several superimposed layers of aluminum or stainless steel mesh. The individual filter layers are held together by a metal frame and inserted into the extractor hood from below in the form of a cassette. In addition to fleece filters and mesh filters, cascade filters, labyrinth filters, or centrifugal separators can also be used as mechanical filter units, which can be used alternatively or in combination.

[0043] A plasma filter unit can also be referred to as an ionization filter. The air or cooking fumes are preferably passed through a mechanical filter, which removes grease and microparticles, and then into an ionization chamber. There, a high voltage is applied between an anode and a cathode, generating an electric field between the poles. This voltage is set high enough that molecules are replaced in the electric field, and the lifetime of the resulting free electrons and ions until recombination is longer than the flight time to the respective electrode. This ionization ionizes the gas entering the ionization chamber, and the resulting ions are deposited on the electrodes. Ionization reduces odors because organic molecules are removed from the air. Furthermore, viruses, bacteria, and allergens are inactivated because their outer membranes are disrupted.Mold and spores are also rendered harmless in this way.

[0044] An activated carbon filter can preferably be provided downstream of the plasma filter unit. The activated carbon filter can be cassette-shaped and / or contain granules to which odorous substances from the cooking vapors adhere. The activated carbon granules used preferably have a microfine tangle of channels inside. This allows odorous substances to be deposited on the walls of these channels when air flows through the activated carbon granules.

[0045] For further details of the invention, reference is made to the dependent claims and the following description of exemplary embodiments with reference to the drawings. In the drawings: Fig. 1 shows a combined lighting and air purification arrangement according to the invention in a plan view; Fig. 2 shows an alternative combined lighting and air purification arrangement according to the invention in a plan view; Fig. 3 the lighting device of the arrangement from the Fig. 1 and Fig. 2 in a detailed section view; and Fig. 4 the basic profile of the lighting device of the arrangement from the Fig. 1 and Fig. 2 in a cross-sectional view.

[0046] The Fig. 1 shows a combined lighting and air purification arrangement 1 according to the present invention with a cleaning device 2 for cleaning ambient air and a lighting device 3. The cleaning device 2 has a housing 4.

[0047] In this case, the housing 4 has a circular-cylindrical basic shape with a circular base. In other words, the housing 4 comprises an at least substantially flat bottom wall, a top wall 5 spaced vertically therefrom, in particular a substantially flat top wall, and a lateral peripheral wall 6 connecting a bottom wall and the top wall 5. The housing 4 is made of a corrosion-resistant steel, for example, a high-alloy chromium-nickel stainless steel.

[0048] On its lateral peripheral wall 6, the housing 4 has an air inlet 7 for sucking in ambient air. Opposite the air inlet 7, the housing 4 has an air outlet on its lateral peripheral wall 6 for expelling purified air. Specifically, the air inlet 7 and the air outlet 8 consist of a plurality of air inlet and air outlet openings, which in the present case are designed as vertically extending oblong holes or slots. The air flow is indicated by arrows in the Fig. 1 and Fig. 2 shown.

[0049] The lighting device 3 surrounds the housing 4 on the outside, at least over part of its circumference, and is spaced apart from it. Specifically, the lighting device 4 follows a circular arc around the cleaning device 2, with the housing 4 and the lighting device 3 being arranged concentrically to one another. Thus, the lighting device 3 follows the outer contour of the housing 4.

[0050] The lighting device 3 comprises an elongated base profile 9, which is in the Fig. 4 is shown in detail in cross-section. The base profile 9 has a receiving groove 10 for a light source on its top and bottom sides, each extending in the longitudinal direction of the base profile 9. The receiving grooves 10 have slightly beveled lateral groove walls 11. Over its entire length, the base profile 9 has a constant cross-section with a height of 50 mm and a width of 12 mm and is made of corrosion-resistant steel. The base profile 9 is designed as a hollow profile and has an inner cavity 12 with a rectangular cross-section.

[0051] As in the Fig. 3, a light source, in this case an LED light strip 13, is inserted into each of the two receiving grooves 10.

[0052] In this case, the lighting device 3 does not surround the housing 4 in a ring-shaped manner over its entire circumference. Rather, the lighting device 3 is interrupted exactly twice around the circumference, with the interruptions 14 being arranged opposite one another with respect to the housing 4. In other words, the lighting device 3 comprises two separate lighting segments 15, which are identical in this case and each extend slightly less than a semicircle around the housing 4.

[0053] The interruptions 14 of the lighting device 3 are each located in the area of ​​the air inlet 7 and the air outlet 8, specifically centrally to the air inlet 7 and the air outlet 8, respectively. In the present case, the interruptions 14 of the lighting device 3 each extend over an arc angle of 20°.

[0054] The lighting segments 15 each have an end element 16 at their ends, which is attached to the base profile 9. Rounded edges are provided on the free end face towards the top and bottom of the lighting device 3.

[0055] The lighting device 3, specifically the two lighting segments 15, are connected to the housing 4 of the cleaning device 2 via a total of four connecting webs 17 distributed around the circumference. The connecting webs 17, which in this case consist of a solid profile with a rectangular cross-section and a height of approximately 30 mm, run radially relative to the center of the circular cross-section of the housing 4. The connecting webs 17 are arranged around the housing 4, offset by 90° to one another. Furthermore, the connecting webs 17 are arranged offset from the air inlet 7 and the air outlet 8, with the air inlet 7 and the air outlet 8 each being arranged centrally between two adjacent connecting webs 17.

[0056] The connecting webs 17 are screwed to the housing 4 of the cleaning device 2 and the base profile 9 of the lighting device 3.

[0057] In the Fig. 2 shows another embodiment of a combined lighting and air purification arrangement 1 according to the invention. This differs from the one shown in Fig. 1 in that the housing 4 has two flat, parallel peripheral wall sections 18, which are connected to one another by circular-arc-shaped peripheral wall sections 19. The air inlet 7 and the air outlet 8 are each arranged opposite one another in the region of the circular-arc-shaped peripheral wall sections 19.

[0058] The means for cleaning air arranged inside the housing 4 are identical to those in the embodiment of the Fig. 1 trained.

[0059] The lighting device 3 in turn comprises two lighting segments 15, which are arranged symmetrically to one another, are identically designed, and are separated from one another by two interruptions 14. The interruptions 14 are also arranged centrally relative to the air inlet 7 and the air outlet 8.

[0060] The lighting device 3 has two rectilinear, parallel sections 20, each of which is adjoined by circular arc-shaped sections 21. The distance between the lighting device 3 and the housing 4 of the cleaning device 2 is not constant around the circumference. In the area of ​​the flat circumferential wall sections 18 of the housing 4, the distance is significantly smaller and amounts to approximately 90 mm, whereas the distance centrally between the two flat circumferential wall sections 18, i.e., centrally in the area of ​​the circular arc-shaped circumferential wall sections 19 (at the interruptions 14), is approximately 220 mm.

[0061] The space between the housing 4 of the cleaning device 2 and the lighting device 3 is, apart from the connecting webs 17, continuously open in the vertical direction, ie from a bottom side to a top side.

[0062] In the Fig. In the arrangement 1 shown in Figure 2, the housing 4 of the cleaning device 2 and the lighting device 3 are also connected to each other via four connecting webs. These have the same cross-section as the connecting webs of the arrangement 1 of Figure 2. Fig. 1. In the present case, however, the connecting webs 17 are arranged in pairs parallel to one another and extend from the flat peripheral wall sections 18 to the straight sections 20 of the lighting device 4.

[0063] Both versions ( Fig. 1 and Fig. 2) is common that both the cleaning device 2 and the lighting device 3 are axially symmetrical with respect to two mutually perpendicular symmetry planes X,Y, which extend in the vertical direction and thus perpendicular to the drawing plane of the Fig. 2 are formed.

[0064] In both versions of the Fig. 1 and the Fig. 2, the lighting device 3 extends along a curve or line that runs in a plane parallel to the floor wall or ceiling wall 5 of the housing 4 of the cleaning device 2. Viewed from the side, the lighting device 3 overlaps vertically with the cleaning device 2, specifically with the peripheral wall 6 of the housing 4.

[0065] In both embodiments, means 22 for cleaning air are arranged inside the housing 4. These are not shown in detail and in this case comprise a mechanical filter, for example, a fleece filter or a metal filter, a plasma filter unit, an activated carbon filter arranged downstream of the latter, and a fan for sucking in and expelling air. The means 22 for cleaning air can be designed as a structural unit, thus enabling simple assembly of the cleaning device 2.

[0066] The combination of a lighting device 3 with a cleaning device 2, wherein the lighting device 3 is spaced apart from the cleaning device 2, not only results in an attractive appearance. Rather, the lighting device 3 and the cleaning device 2 can be manufactured separately and then only need to be connected to one another via connecting webs 17. In particular, the production of the lighting device 3 with a base profile 9, which practically only needs to be cut and reshaped, is very simple and efficient. Furthermore, depending on the specific spatial and lighting conditions, virtually any desired configuration of the cleaning device 2 and various configurations of the lighting device 3 can be optionally combined with one another. List of reference symbols 1 arrangement 2 cleaning device 3 Lighting equipment 4 housings 5 Ceiling wall 6 lateral peripheral wall 7 Air intake 8 Air outlet 9 Basic profile 10 mounting groove 11 Groove wall 12 Cavity 13 LED strip lights 14 Interruption 15 lighting segment 16 End element 17 Connecting bridge 18 flat peripheral wall section 19 circular peripheral wall section 20 straight section 21 circular section 22 means for purifying air X, Y symmetry plane

Claims

[1] Combined lighting and air purification arrangement (1) comprising a cleaning device (2) for cleaning ambient air, which has a housing (4) and means for cleaning air (22) arranged therein, and a lighting device (3) which is connected to the housing (4) and spaced from the housing (4), wherein the lighting device (3) surrounds the housing (4) on the outside over at least part of its circumference. [2] Combined lighting and air purification arrangement (1) according to claim 1, characterized by that the housing (4) has an air inlet (7) for sucking in ambient air on a lateral peripheral wall (6) and an air outlet (8) for expelling purified air on a lateral peripheral wall (6). [3] Combined lighting and air purification arrangement (1) according to claim 2, characterized bythat the air inlet (7) and / or the air outlet (8) each have or consist of one or more air inlet (7) or air outlet opening(s) (8). [4] Combined lighting and air purification arrangement (1) according to claim 2 or 3, characterized by that the air inlet (7) and the air outlet (8) are arranged opposite each other on the housing (4). [5] Combined lighting and air purification arrangement (1) according to one of the preceding claims, characterized by that the lighting device (3) surrounds the housing (4) in a ring-shaped manner over its entire circumference. [6] Combined lighting and air purification arrangement (1) according to one of claims 1 to 4, characterized by that the lighting device (3) is interrupted at least once around the circumference. [7] Combined lighting and air purification arrangement (1) according to claim 6, characterized bythat the lighting device (3) is interrupted exactly twice over the circumference, wherein the interruptions (14) of the lighting device (3) are arranged opposite one another with respect to the housing (4). [8] Combined lighting and air purification arrangement (1) according to one of claims 2 to 4 and according to claim 7, characterized by that the interruptions (14) of the lighting device (3) are each located in the area of the air inlet (7) and the air outlet (8). [9] Combined lighting and air purification arrangement (1) according to claim 7 or 8, characterized by that the interruptions (14) of the lighting device (3) are each located in a section of the lighting device (3) which runs along a circular arc around the housing (4). [10] Combined lighting and air purification arrangement (1) according to claim 9, characterized bythat the interruptions (14) of the lighting device (3) each extend over an arc angle of at least 5°, in particular of at least 10°, preferably of at least 15° and / or of at most 40°, in particular of at most 30°, preferably of at most 25°, particularly preferably over an arc angle of exactly 20°, and / or that the interruptions of the lighting device (3) have a clear width of at least 50 mm, in particular of at least 75 mm, and / or of at most 200 mm, in particular of at most 150 mm. [11] Combined lighting and air purification arrangement (1) according to one of the preceding claims, characterized by that the housing (4) has an at least substantially flat bottom wall, a top wall (5) spaced apart from it in a height direction, in particular a substantially flat top wall, and a lateral peripheral wall (6) connecting the bottom wall and the top wall (5). [12] Combined lighting and air purification arrangement (1) according to one of the preceding claims, characterized by that the housing (4) has a cylindrical basic shape with an oval base. [13] Combined lighting and air purification arrangement (1) according to claim 12, characterized by that the housing (4) has a circular base. [14] Combined lighting and air purification arrangement (1) according to claim 12, characterized by that the housing (4) has two flat, preferably mutually parallel extending peripheral wall sections (18) which are connected to one another by arcuate, in particular circular arc-shaped peripheral wall sections (19). [15] Combined lighting and air purification arrangement (1) according to claim 14 and according to one of claims 2 to 4, characterized bythat the air inlet (7) and the air outlet (8) are arranged in the region of the arcuate peripheral wall sections (19), in particular centrally in the arcuate peripheral wall sections (19). [16] Combined lighting and air purification arrangement (1) according to one of the preceding claims, characterized by that the lighting device (3) follows the outer contour of the housing (4). [17] Combined lighting and air purification arrangement (1) according to one of the preceding claims, characterized by that the lighting device (3) runs along a circular arc around the cleaning device (2). [18] Combined lighting and air purification arrangement (1) according to claim 17 and claim 13, characterized by that the housing (4) and the lighting device (3) are arranged concentrically to one another. [19] Combined lighting and air purification arrangement (1) according to one of claims 1 to 16, characterized bythat the lighting device (3) has two rectilinear, in particular parallel, sections, at the ends of which arc-shaped, in particular circular arc-shaped sections are connected. [20] Combined lighting and air purification arrangement (1) according to one of the preceding claims, characterized by that the lighting device (3) runs along a curve or line which runs in a plane parallel to a floor wall or ceiling wall (5) of the housing (4) of the cleaning device (2). [21] Combined lighting and air purification arrangement (1) according to one of the preceding claims, characterized by that the smallest distance over the circumference between the housing (4) and the lighting unit (3) is at least 30 mm, in particular at least 50 mm, preferably at least 80 mm. [22] Combined lighting and air purification arrangement (1) according to one of the preceding claims, characterized bythat the space between the housing (4) of the cleaning device (2) and the lighting device (3) is continuously open in the vertical direction. [23] Combined lighting and air purification arrangement (1) according to one of the preceding claims, characterized by that the cleaning device (2), in particular the housing (4) of the cleaning device (2), and the lighting device (3) are connected to one another via at least one connecting web (17), in particular via a plurality of connecting webs (17), preferably via exactly 4 connecting webs (17) distributed over the circumference. [24] Combined lighting and air purification arrangement (1) according to claim 23 and claim 13, characterized by that the connecting webs (17) run radially relative to the center of the circular base area of the housing (4). [25] Combined lighting and air purification arrangement (1) according to claim 24, characterized bythat 4 connecting webs (17) are provided distributed over the circumference, which are arranged around the housing (4) at a distance of 90° from one another, the connecting webs (17) being arranged in particular offset from the air inlet (7) and / or the air outlet (8), the air inlet (7) and / or the air outlet (8) preferably being arranged centrally between two adjacent connecting webs. [26] Combined lighting and air purification arrangement (1) according to claim 23 and claim 14 or 15, characterized by that the connecting webs (17) extend, in particular in pairs, parallel to one another from the flat peripheral wall sections (18) to the lighting device (3). [27] Combined lighting and air purification arrangement (1) according to one of claims 23 to 26, characterized bythat the connecting webs (17) are formed from a solid profile or from a hollow profile, and / or that the connecting webs (17) have a rectangular cross-section, and / or that the connecting webs (17) are screwed and / or materially connected, in particular welded or glued or soldered, to the housing (4), and / or that the connecting webs (17) are screwed and / or materially connected, in particular welded or glued or soldered, to the lighting device, in particular to a base profile (9) of the lighting device (3). [28] Combined lighting and air purification arrangement (1) according to one of the preceding claims, characterized byin that the lighting device (3) comprises an elongated base profile (9) which has a receiving groove (10) for a light source extending in the longitudinal direction of the base profile (9) towards an upper side and / or a lower side, wherein the base profile (9) preferably has a constant cross-section over its length. [29] Combined lighting and air purification arrangement (1) according to claim 28, characterized by that a light source, in particular an LED light strip (13), is inserted into each receiving groove (10). [30] Combined lighting and air purification arrangement (1) according to claim 28 or 29, characterized bythat the base profile (9) has a height of at least 20 mm, in particular of at least 30 mm, preferably of at least 40 mm, and / or of at most 100 mm, in particular of at most 80 mm, preferably of at most 60 mm, particularly preferably a height of 50 mm, and / or that the base profile has a width of at least 6 mm, in particular of at least 8 mm, preferably of at least 10 mm, and / or of at most 25 mm, in particular of at most 20 mm, preferably of at most 16 mm, particularly preferably a width of 12 mm. [31] Combined lighting and air purification arrangement (1) according to one of claims 28 to 30, characterized by that the base profile (9) is designed as a hollow profile and / or consists of plastic or aluminum or a steel, in particular a corrosion-resistant steel. [32] Combined lighting and air purification arrangement (1) according to one of the preceding claims, characterized bythat the housing (4) is made of plastic or aluminum or steel, in particular corrosion-resistant steel. [33] Combined lighting and air purification arrangement (1) according to one of the preceding claims, characterized by that the lighting device (3) overlaps in the height direction with the cleaning unit (2), in particular with a lateral peripheral wall (6) of the housing (4), when viewed from the side, and / or the lighting device (3) extends over the same height as the cleaning unit (2). [34] Combined lighting and air purification arrangement (1) according to one of the preceding claims, characterized by that the means for cleaning air (22) comprise a mechanical filter, in particular a fleece filter or a metal filter, and / or an activated carbon filter, and / or a plasma filter unit, and / or a fan for sucking in and expelling air. [35] Combined lighting and air purification arrangement (1) according to one of the preceding claims, characterized by that fastening means are provided on the housing (4) of the cleaning device (2), in particular exclusively on the housing (4) of the cleaning device (2), preferably on a ceiling wall of the housing (4), in order to fasten the arrangement (1) to a ceiling of a building, wherein the fastening means in particular comprise one or more ropes, so that the arrangement (1) can be attached in a freely suspended manner.

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