EP3516301B1 - Extractor hood with lighting module - Google Patents

Description

The present invention relates to an extractor hood with a lighting module.

In the case of extractor hoods, it is known to provide lighting devices by means of which a hob arranged under the extractor hood can be illuminated. In addition, it is known to design extractor hoods in such a way that the air is extracted via an edge gap around a so-called baffle plate. For this purpose, the impact plate is arranged in a frame and an edge gap is thus formed between the frame and the impact plate. Such an extractor hood is for example in the DE 10 2014 114 926 A1 described. In this extractor hood, a recessed section is provided on the frame, which is adjacent to the baffle plate and in which, for example, lighting devices can be introduced.

A disadvantage of this extractor hood is that the structure of the extractor hood is complex, since the recessed section has to be introduced into the frame. In addition, the extractor hood is limited to a single type of lighting.

Furthermore, from the DE 298 00 776 U1 a lighting element known for use in extractor hoods. The extractor hood has a flat frame element which protrudes outwardly beyond the outer contour of the extractor hood. The frame element has an area facing into the interior of the extractor hood, to which at least one lighting fixture is assigned. The frame element can be formed from a light-permeable or light-conducting material. In addition, the extractor hood has a frame that has a rectangular shape. In the frame, the lighting elements are provided, which can represent fluorescent tubes, for example. These are arranged above the flat frame element and emit light downwards. On the one hand, the light emitted by the lighting elements exits downwards through the flat frame element. The rest of the light is in that Material of the flat frame element is reflected on the lower surface in such a way that it emerges at the edge.

A disadvantage of this lighting module is that it is also limited to the type of lighting that is possible using the lighting elements above the disc-shaped frame element.

The object of the present invention is thus to create a solution by means of which a part of the extractor hood and / or the surroundings of the extractor hood can be illuminated in different ways and yet in a simple manner.

The invention is based on the knowledge that this object can be achieved by using a lighting device which has a modular structure and can thus be used for different types of light output.

According to the invention, the invention relates to an extractor hood with at least one lighting module. The extractor hood is characterized in that the extractor hood comprises an air guide unit (2) which has a base plate made of light-conducting material, the at least one lighting module is incorporated in the base plate of the air guide unit, that the lighting module has a frame-shaped base body and that on the frame-shaped base body at least one lighting element is arranged so that the at least one lighting element emits light in the plane of the frame-shaped base body.

According to the invention, a lighting module is understood to be a structural unit consisting of several components, which is preassembled or can be preassembled and can be introduced into a surface of an extractor hood. According to the invention, the lighting module has a frame-shaped base body. The base body can also be referred to as a carrier. A frame-shaped base body is understood to be a base body consisting of at least four side walls. In addition, the base body can also have a foot which is arranged on an edge of the side walls. The foot thus forms a frame that is perpendicular to the side walls. The foot can protrude to the inside and / or to the outside of the side walls of the frame-shaped base body. The base body is used to attach Lighting elements of the lighting module. In addition, the base body can also be used to fasten the lighting module in a surface of an extractor hood. In addition, the base body is preferably used to attach one or more light guide elements. Finally, the power supply for the lighting elements can also be attached to the frame, for example a cable. In this case, the base body and, if necessary, an additionally provided cover can be designed with structures that allow the cable routing of the lighting elements out of the lighting module safely. In this way, a large number of light effects, functional lighting and design representations can be implemented with little variance within the assembly of the lighting module.

Due to its frame shape, the base body defines a plane which is in particular perpendicular to the side walls of the frame-shaped base body. This plane can also be referred to as the surface direction of the frame-shaped base body.

At least one lighting element is arranged on the frame-shaped base body. The at least one lighting element represents the light source of the lighting module. The lighting element can be, for example, a light-emitting diode (LED). The base body allows the installation of lighting elements, which can also be referred to as lighting means and can represent LEDs, for example, at different positions. The lighting element is preferably combined with further lighting elements to form a lighting unit. The lighting element or the lighting unit can be fastened to the base body, for example glued to it or mechanically fastened, for example clipped in. The lighting unit can, for example, represent a circuit board with several lighting elements.

The at least one lighting element is arranged on the frame-shaped base body in such a way that at least one lighting element emits light in the plane of the frame-shaped base body. Outputting light in the plane of the frame-shaped body denotes a light output in which light is output from the frame to the outside and / or to the inside. The direction of the light output the base body is therefore preferably perpendicular to the side wall of the frame-shaped base body on which the lighting element is arranged.

By using a lighting module that has a frame-shaped base body, the variety of types of lighting that can be output by the lighting module is increased. In particular, the light output by the at least one lighting module can be coupled into other components of the lighting module or the extractor hood. In addition, the light can also be influenced due to the interior space defined by the frame, for example it can be deflected in this interior space. For this purpose, different light guide elements can be used in the interior of the lighting module, depending on the desired lighting, or they can be attached to the frame-shaped base body. Finally, due to the frame shape of the base body, further components of the lighting module, such as functional lights, can also be accommodated in the latter.

According to one embodiment, the lighting module has at least one external lighting unit. The lighting unit comprises at least one of the lighting elements. The outer lighting unit is arranged on the outside of the frame-shaped base body. In particular, the outer lighting unit can be attached to the outside of the side walls of the frame-shaped base body. The outer lighting unit can additionally or alternatively also be placed on a foot of the base body. The outer lighting unit preferably extends over the entire outer circumference of the frame-shaped base body. The outer lighting unit can represent a continuous frame that can be placed around the frame-shaped base body. But it is also possible that the outer lighting unit consists of several parts, for example several strips, which are arranged on the outside of the frame-shaped base body. The external lighting unit preferably comprises several lighting elements. The lighting elements are preferably arranged distributed over the length of the lighting unit.

By using an external lighting unit which is arranged on the outside of the frame-shaped base body and from which light is in the plane of the Frame-shaped body is output, the light can for example be coupled into a plate of the extractor hood into which the lighting module is introduced. In this way, depending on the design of the plate, the light can be used to illuminate the entire surface of the plate, part of the surface of the plate or to illuminate the edge area of the plate.

In addition or as an alternative to the outer lighting unit, the lighting module can have at least one inner lighting unit. The inner lighting unit comprises at least one of the lighting elements and is arranged on the inside of the frame-shaped base body. In particular, the inner lighting unit can be attached to the inside of the side walls of the frame-shaped base body. The inner lighting unit can additionally or alternatively also be placed on a foot of the base body. The inner lighting unit preferably extends over the entire inner circumference of the frame-shaped base body. The inner lighting unit can represent a continuous frame that can be inserted into the frame-shaped base body. However, it is also possible that the inner lighting unit consists of several parts, for example several strips, which are arranged on the inside of the frame-shaped base body. The inner lighting unit preferably comprises a plurality of lighting elements. The lighting elements are preferably arranged distributed over the length of the lighting unit.

By using an inner lighting unit from which light can be output in the plane of the frame-shaped base body, the interior of the frame-shaped base body or the underside of the frame-shaped base body can be used to receive light guide elements through which the light is directed from the lighting elements, and so creating different types of lighting.

According to one embodiment, the lighting module has at least one flat light-guiding element which is received in the frame-shaped base body or attached to it. According to one embodiment, the flat light guide element is detachably connected to the frame-shaped base body. This can further increase flexibility. In particular, one light element can be compared to another be replaced. According to the invention, however, it is also possible for the flat light guide element or elements to be permanently connected to the frame-shaped base body during the assembly of the lighting module. An element that changes the properties of the light that enters it is referred to as a light guide element. In particular, the light can be scattered in or on the light-guiding element, the direction of which can be changed, the color of the light can be changed and / or the light can be prevented from exiting the light-guiding element at least in some areas. Since the light guide element can be received in the frame-shaped base body, the required overall height of the lighting module can be low; in particular, the height of the light guide element can correspond to the height of the frame-shaped base body. In the embodiment in which the light-guiding element is attached to the frame-shaped base body, this can, however, also have a larger size than the frame-shaped base body. In particular, the light guide element can for example be attached to the underside of the frame-shaped base body and protrude laterally beyond the base body.

The light guide element can represent a light guide plate, a reflection unit or a cover plate.

A plate that scatters the light that enters this plate is referred to as a light guide plate. In this embodiment of the light guide element, it is preferably received in the frame-shaped base body of the lighting module. The height of the light guide plate here corresponds, for example, to the height of the base body or is greater than the height of the base body. This type of light guide element is preferably used when an internal lighting unit is provided in the lighting module. In this embodiment, the light guide plate preferably fills the entire interior space of the base body. Through the light guide plate, diffuse light can therefore be emitted from the lighting module over the area which is delimited on the sides by the frame-shaped base body.

In the embodiment of the light guide element, which represents a reflection unit, the light guide element serves to deflect light. The reflection unit can be accommodated in the frame-shaped base body or attached to it. By using a reflection unit, a lighting module with internal Lighting unit a targeted deflection of the light output in the plane of the base body can be achieved. As a result, a locally limited output of light can be realized and the lighting can thus also preferably serve as a display.

In the embodiment in which the light guide element is a cover plate, this is preferably attached to the frame-shaped base body. In particular, the cover plate can close the base body at the bottom. The cover plate can for example consist of metal and openings can be provided in this cover plate. In this embodiment, the cover plate is preferably used with at least one further light guide element, in particular a light guide plate and / or a reflection unit.

According to one embodiment, the reflection unit is divided into several segments. A reflection unit in which at least one partition extends between the side walls of the frame-shaped base body is understood to be subdivided into segments. The segments can represent triangles or rectangles, for example. At least one lighting element is assigned to each of the segments. Associated with the segment is understood to be a lighting element which is arranged on the base body and from which light can be introduced into the corresponding segment of the reflection unit. In this way, the area which is delimited by the base body can be illuminated in zones or segments.

According to one embodiment, the cover plate comprises a metal plate with cutouts and / or a glass plate with a coating in areas. With these types of light guide elements, contours can be illuminated in a targeted manner and the lighting module can therefore optionally be used for decorative purposes or can serve as a display device.

According to the invention, it is also possible for at least one functional lighting element to be arranged in the lighting module, which emits light downwards from the lighting module.

Directional information, such as above or below, relate to a lighting module that is accommodated in a horizontal plate of an extractor hood. For lighting modules that are installed in a different orientation in an extractor hood, this information changes accordingly.

According to the invention, a functional light element is understood to be a light source which emits light, for example, to illuminate a hob or a zone of a hob. The functional lighting element can be spotlights, for example. These can emit light downwards parallel to the side walls of the base body. Since a frame-shaped base body is used in the lighting module used according to the invention, further components can also be used in the embodiment in which functional lighting elements are arranged in the base body. For example, an outer lighting unit can also be provided in this embodiment.

According to a preferred embodiment, the lighting module comprises a cover which at least covers the base body of the lighting module at the top. The individual components of the lighting module can be protected from contamination by the cover and the lighting module can therefore be used in an area of an extractor hood that is exposed to fumes. The base body is protected from the air flow and humidity and grease with the lid. The lid is designed in such a way that it obstructs the airflow minimally and is easy to clean.

The lighting module preferably has a plurality of lighting elements. These lighting elements can at least partially be controlled separately from one another. Groups of lighting elements can be controlled together. For example, an inner lighting unit with the lighting elements provided therein can be controlled separately from an outer lighting unit with the lighting elements provided therein. However, it is also possible for lighting elements to be controlled individually within a lighting unit. For example, in an embodiment with an inner lighting unit and a reflection unit that is divided into segments, the lighting elements of a segment can preferably be separately Lighting elements of another segment can be controlled. Furthermore, individual lighting elements or groups of lighting elements can each be controlled separately. In this way, different luminous images can be generated. For example, a ring of light can be produced that runs around the edge of a glass plate in which the lighting module is received.

According to one embodiment, the lighting module and in particular the frame-shaped base body of the lighting module has a mechanical interface for fastening at least one light guide element on the underside of the lighting module, in particular on the underside of the frame-shaped base body. The interface can in particular be a mechanical interface, for example in the form of latching devices. Through the interface, further light guide elements, which can represent design applications such as stainless steel sheets or additional glass plates, can be attached to the underside of the base body. The additional glass plates can in turn be decorated with elements made of stainless steel, chrome or aluminum.

Advantages and features that are described with regard to the lighting module apply - if applicable - correspondingly to the extractor hood according to the invention and vice versa.

The lighting module is preferably incorporated in the extractor hood in a surface or plate that represents a part of the outside of the extractor hood, that is, which is visible to the user of the extractor hood. According to the invention, the lighting module is incorporated in a plate of the extractor hood, which is made of a light-conducting material.

According to the invention, the extractor hood comprises an air guide unit. The air guide unit is understood to be the part of the extractor hood via which vapors are directed to an inlet opening of the extractor hood, in which grease filters are usually provided. The air guide unit preferably has a base plate and at least one lighting module. The base plate of the air guide unit represents in particular a baffle plate. In this case, a baffle plate is understood to be a plate which covers an inlet opening of the extractor hood at least in some areas. The baffle is preferably offset to a viewing hood or a hood or other part of the extractor hood in the direction of flow of the incoming air or has a smaller size than a suction opening of the hood, in particular in a viewing hood or a hood. If such a baffle plate is used, the air to be cleaned can only reach the suction opening of the extractor hood and thus to the filter elements arranged therein via the edge of the baffle plate and other parts of the extractor hood, such as air baffles. This type of extractor hood is also known as an edge extraction hood.

The base plate of the air guide unit, in particular the baffle plate, consists of light-conducting material and the at least one lighting module is incorporated in the base plate of the air guide unit. This arrangement of the lighting module allows the advantages of the lighting module to be used in particular. In particular, light from the lighting module can be coupled into the base plate, in particular the baffle plate. In this embodiment, the lighting module therefore comprises an external lighting unit. In addition, by arranging the lighting module in a baffle plate, which consists of a light-conducting material, illumination or at least decorative lighting of the extractor hood and possibly also a hob that is arranged under the extractor hood can be ensured, since the baffle plate is usually in this Area is arranged in the extractor hood.

The lighting module and in particular the frame-shaped base body can be or will be connected to the base plate, in particular the baffle plate, which is preferably a glass plate, via a form fit or material connection.

According to one embodiment of the extractor hood, the base plate has a recess for receiving the lighting module and at least one of the lighting elements of the lighting module faces the edge of the recess in the base plate. Individual lighting elements can be provided on the outside of the frame-shaped base body. However, an external lighting unit is preferably used. The lighting unit can represent a circuit board with lighting elements provided on it. In the case of the external lighting unit, in the embodiment in which the lighting module is in the Recess of a base plate is introduced, preferably be designed so that the lighting elements also shine in the corners of the recess, which in particular represents a glass plate cutout.

According to one embodiment of the extractor hood, at least the outer edge area of the base plate has a facet or is curved. This configuration of the base plate, in particular the baffle plate, allows light that is coupled into the base plate by the lighting module to be output specifically downwards via the edge regions of the base plate. With the coupling of light into the base plate, in particular into the glass, a different effect can be achieved depending on the glass plate used (material, shape, edge processing, etc.). For example, the interior of the extractor hood can be illuminated with a polished edge. In the case of rougher and possibly faceted edges, the outer contour of the glass edge is emphasized by the same type of coupling. If, instead of a planar glass plate, a slightly curved glass plate, possibly with a satin finish on the back, is used, the coupled light is scattered over the area at the bending radius and is visible to the user.

According to one embodiment, the base plate, in particular the impact plate, consists of glass. However, other base plates can also be used. For example, the base plate can consist of plastic.

Light that is coupled into a light guide plate, which is provided as a light guide element in the frame-shaped base body of the lighting module, can, for example, be decoupled from a light guide plate with a structured or printed surface facing downwards, i.e. to a cooktop arranged below the extractor hood. In this way, the lighting module generates a surface light that is preferably located in the center of the base body. In order to obtain an optimal light image here, diffusion elements and reflection elements can be used in addition to the light guide plate.

According to a preferred embodiment, the lighting module protrudes down to the bottom of the base plate and protrudes up to the top of the base plate, the overhang upwards being greater than the overhang downwards.

On the one hand, this dimensioning enables maximum installation space to be created in the lighting module. The lighting module can project a maximum of 5 mm below and a maximum of 15 mm above the base plate, for example. In addition, fastening elements for fastening the lighting module to the base plate can be provided in the lighting module itself.

The extractor hood can be a vertical hood, a sloping hood or a ceiling vent. An extractor hood is referred to as a vertical hood, the suction opening and preferably also the inlet opening of which lie in the vertical. An extractor hood in which the suction opening is inclined in a direction inclined from the vertical and the horizontal is referred to as an inclined hood. Ceiling ventilation is an extractor hood that is attached to a room ceiling and the intake opening of which is horizontal. The distance between the hob or a worktop and the underside of the extractor hood is preferably greater than the distance between the underside of the extractor hood and the ceiling of the room. In these embodiments of the extractor hood, the suction opening and in particular a baffle plate arranged in this area is visible to the user, so that the lighting, in particular the decorative lighting or display, is visible to the user. With these extractor hoods, the lighting module, which is used for both functional and accent lighting, and operating and display elements, can be elegantly integrated into such extractor hoods.

According to the invention, a lighting module or an extractor hood with such a lighting module is created. The lighting module can also be referred to as a modular lighting system. The lighting module can be installed in a section of the extractor hood, in particular a baffle plate.

Figur 1:

eine schematische Prinzipskizze einer Ausführungsform einer Dunstabzugshaube in Form einer Vertikalesse;

Figur 2:

eine schematische Prinzipskizze einer weiteren Ausführungsform einer Dunstabzugshaube in Form einer Schrägesse;

Figur 3:

eine schematische Prinzipskizze einer weiteren Ausführungsform einer Dunstabzugshaube in Form eines Deckenlüfters;

Figur 4:

eine schematische Schnittansicht einer weiteren Ausführungsform der erfindungsgemäßen Dunstabzugshaube;

Figur 5:

eine schematische Explosionsansicht einer Ausführungsform des erfindungsgemäß verwendeten Beleuchtungsmoduls und Grundplatte mit unterschiedlichen Komponenten;

Figur 6:

eine schematische perspektivische Teilschnittansicht einer Ausführungsform des erfindungsgemäß verwendeten Beleuchtungsmoduls mit Grundplatte;

Figur 7:

eine schematische Schnittansicht durch einen Teil der Ausführungsform des erfindungsgemäß verwendeten Beleuchtungsmoduls mit Grundplatte nach Figur 6;

Figur 8:

eine schematische perspektivische Unteransicht der Ausführungsform des erfindungsgemäß verwendeten Beleuchtungsmoduls mit Grundplatte nach Figuren 6 und 7;

Figur 9:

eine schematische Schnittansicht einer weiteren Ausführungsform der erfindungsgemäßen Dunstabzugshaube;

Figur 10:

eine schematische Schnittansicht einer weiteren Ausführungsform der erfindungsgemäßen Dunstabzugshaube;

Figur 11:

eine schematische Schnittansicht einer weiteren Ausführungsform der erfindungsgemäßen Dunstabzugshaube;

Figur 12:

eine schematische perspektivische Teilschnittansicht einer weiteren Ausführungsform des erfindungsgemäß verwendeten Beleuchtungsmoduls mit Grundplatte;

Figur 13:

eine schematische Schnittansicht durch einen Teil der Ausführungsform des erfindungsgemäß verwendeten Beleuchtungsmoduls mit Grundplatte nach Figur 12;

Figur 14:

eine schematische Darstellung einer weiteren Ausführungsform eines Beleuchtungsmoduls mit Grundplatte;

Figur 15:

eine schematische perspektivische Teilschnittansicht einer weiteren Ausführungsform des erfindungsgemäß verwendeten Beleuchtungsmoduls mit Grundplatte;

Figur 16:

eine schematische Schnittansicht durch einen Teil der Ausführungsform des erfindungsgemäß verwendeten Beleuchtungsmoduls mit Grundplatte nach Figur 15;

Figur 17:

eine schematische perspektivische Unteransicht einer weiteren Ausführungsform des erfindungsgemäß verwendeten Beleuchtungsmoduls mit Grundplatte;

Figur 18:

eine schematische perspektivische Unteransicht einer weiteren Ausführungsform des erfindungsgemäß verwendeten Beleuchtungsmoduls mit Grundplatte in einem ersten Zustand; und

Figur 19:

eine schematische perspektivische Unteransicht der Ausführungsform des erfindungsgemäß verwendeten Beleuchtungsmoduls mit Grundplatte nach Figur 18 in einem zweiten Zustand.

The invention is described again in more detail below with reference to the accompanying drawings. Show it:

Figure 1:

a schematic sketch of an embodiment of an extractor hood in the form of a vertical hood;

Figure 2:

a schematic sketch of a further embodiment of an extractor hood in the form of an oblique hood;

Figure 3:

a schematic diagram of a further embodiment of an extractor hood in the form of a ceiling fan;

Figure 4:

a schematic sectional view of a further embodiment of the extractor hood according to the invention;

Figure 5:

a schematic exploded view of an embodiment of the lighting module and base plate used according to the invention with different components;

Figure 6:

a schematic perspective partial sectional view of an embodiment of the lighting module used according to the invention with a base plate;

Figure 7:

a schematic sectional view through part of the embodiment of the lighting module used according to the invention with base plate according to Figure 6 ;

Figure 8:

a schematic perspective bottom view of the embodiment of the lighting module used according to the invention with base plate according to FIG Figures 6 and 7 ;

Figure 9:

a schematic sectional view of a further embodiment of the extractor hood according to the invention;

Figure 10:

a schematic sectional view of a further embodiment of the extractor hood according to the invention;

Figure 11:

a schematic sectional view of a further embodiment of the extractor hood according to the invention;

Figure 12:

a schematic perspective partial sectional view of a further embodiment of the lighting module used according to the invention with a base plate;

Figure 13:

a schematic sectional view through part of the embodiment of the lighting module used according to the invention with base plate according to Figure 12 ;

Figure 14:

a schematic representation of a further embodiment of a lighting module with a base plate;

Figure 15:

a schematic perspective partial sectional view of a further embodiment of the lighting module used according to the invention with a base plate;

Figure 16:

a schematic sectional view through part of the embodiment of the lighting module used according to the invention with base plate according to Figure 15 ;

Figure 17:

a schematic perspective bottom view of a further embodiment of the lighting module used according to the invention with a base plate;

Figure 18:

a schematic perspective bottom view of a further embodiment of the lighting module used according to the invention with base plate in a first state; and

Figure 19:

a schematic perspective bottom view of the embodiment of the lighting module used according to the invention with base plate according to FIG Figure 18 in a second state.

In Figure 1 a schematic representation of the principle of a first embodiment of the extractor hood 1 according to the invention is shown. This extractor hood 1 is a so-called vertical hood. The extractor hood 1 is attached above a stove 3 to a mounting wall 4, which is a room wall. The extractor hood 1 has an extractor housing 10 and a viewing hood 14. In the embodiment shown, an air guiding unit 2 is provided in front of the viewing hood 14, which can also be a vapor shield, from which in FIG Figure 1 only the base plate 20, which is also referred to as a baffle plate, can be seen. In the front of the viewing hood 14 there is a (in Figure 1 not visible) suction opening. In the flow direction in front of the suction opening, that is to say in front of the front of the viewing hood 14, the base plate 20 is arranged. The suction opening is at the in Figure 1 shown embodiment of the extractor hood 1, which represents a vertical Essence, in the vertical.

In Figure 2 a schematic representation of the principle of a second embodiment of the extractor hood 1 according to the invention is shown. This extractor hood 1 is a so-called sloping hood or headroom. The extractor hood 1 is attached above a stove 3 to a mounting wall 4, which is a room wall. The extractor hood 1 has an extractor housing 10 and a viewing hood 14. In the embodiment shown, an air guiding unit 2 is provided in front of the viewing hood 14, which can also be a vapor shield, from which in FIG Figure 2 only the base plate 20 can be seen. The front of the viewing hood 14 lies in a plane which is pivoted forward from the vertical. In the front of the viewing hood 14 there is a (in Figure 2 not visible) suction opening. In the flow direction in front of the suction opening, that is to say in front of the front side of the viewing hood 14, the base plate 20 of the air guiding unit 2 is arranged. The suction opening is at the in Figure 2 shown embodiment of the extractor hood 1, which represents a Schräesse, in a plane which is inclined to the vertical.

In Figure 3 a schematic representation of the principle of a third embodiment of the extractor hood 1 according to the invention is shown. This extractor hood 1 is a so-called ceiling fan. The extractor hood 1 is attached above a stove 3 to a mounting wall 4, which is the ceiling of the room. The extractor hood 1 has an extractor housing 10 and a viewing hood 14. In In the embodiment shown, an air guiding unit 2 is provided under the viewing hood 14, which can also represent a vapor shield, from which in FIG Figure 1 only the base plate 20, which is also referred to as a baffle plate, can be seen. In the underside of the viewing hood 14 there is a (in Figure 3 not visible) suction opening. In the direction of flow in front of the suction opening, that is, under the underside of the extractor housing 10 and in particular the viewing hood 14, the air guiding unit 2 is arranged. The suction opening is at the in Figure 3 shown embodiment of the extractor hood 1, which represents a ceiling fan, in the horizontal.

In the embodiments of Figures 1 to 3 a suction gap 14, which can also be referred to as an edge gap, is formed between the viewing hood 14 and the air guide unit 2, in particular the base plate 20.

In Figure 4 a schematic sectional view of an embodiment of the extractor hood 1 according to the invention is shown. In this embodiment, which can represent a ceiling fan, for example, no separate extractor housing 10 but only the viewing hood 14 is provided. However, a separate extractor hood housing can also be provided in this embodiment. A suction opening 101 is formed in the underside of the viewing hood 14. In the embodiment shown, the suction opening 101 merges into an air guiding space 15. An inlet opening 100, which is covered by a filter element 12 in the embodiment shown, is introduced on the upper side of the air guiding space 15. A fan 11 is arranged in the interior of the viewing hood 14, that is to say above the inlet opening 100. An air guide unit 2 is introduced into the suction opening 101. The air guide unit 2 consists of a base plate 20 and a lighting module 21 introduced into the base plate 20. The base plate 20 preferably consists of a light-permeable material, in particular of glass. In the embodiment shown, the lighting module 21 is arranged below the inlet opening 100 of the viewing hood 14 and thus at least partially covers the filters 12 introduced in the inlet opening 100.

In Figure 5 a schematic exploded view of an embodiment of the lighting module 21 and base plate used according to the invention with different components of the lighting module 21 is shown.

In the base plate 20, which represents a glass plate and is also referred to as a baffle plate, a recess 200 is made in the center. In the embodiment shown, the recess 200 has a rectangular shape.

The lighting module 21 comprises in particular a frame-shaped base body 210, which can be connected to the base plate 20 via a form fit or material fit. In the embodiment shown, the frame-shaped base body 210 has a rectangular cross section. In particular, the frame-shaped base body 210 is formed from four side walls 2101 which run vertically. In the embodiment shown, a foot 2102 is provided on the underside of the side walls 2101 and thus the frame-shaped base body 210, which foot extends horizontally along the side walls.

In the edge area of the lighting module 21, lighting elements are provided which are shown in FIG Figure 5 are shown as lighting unit 214, 215 and can also be referred to as circuit boards. The lighting unit 214 represents an inner lighting unit and the lighting unit 215 represents an outer lighting unit. The lighting unit 214 can be arranged on the outside of the base body 210, in particular on the outside of the side walls 2101 of the base body 210. The inner lighting unit 215 can be arranged on the inside of the base body 210 and in particular on the inside of the side walls 2101 of the base body 210. The lighting units 214 and 215 can both be provided on the base body 210. However, it is also within the scope of the invention that only one of the lighting units 214, 215 is arranged on the base body 210.

In addition, the lighting module 21 can preferably comprise a cover 213 which covers the frame-shaped base body 21 at the top. Further components that can also be present in or on the lighting module are in Figure 5 an outer cover 211, a glass cover 212, a light guide plate 216, a reflection unit 217 and several functional lighting elements 218 are shown.

The outer cover 211 and the glass cover 12 can be fastened together or individually to the underside of the base body 210 as design applications. The outer cover 211 can be, for example, a cover made of stainless steel sheet. The additional glass cover 12 can in turn also be decorated with elements made of stainless steel, chrome or aluminum. The base body 210 is preferably protected from the air flow and humidity and fat by the cover 213. The cover 213 is designed in such a way that it minimally obstructs the air flow and is easy to clean.

In Figure 6 a schematic perspective partial sectional view of an embodiment of the lighting module 21 with base plate 20 used according to the invention is shown. Figure 7 shows this embodiment in a schematic sectional view. In this embodiment, the base body 210 is introduced into the recess 200 in the base plate 20. How out Figure 7 results, the foot 2102 protrudes outward beyond the recess 200. In this way, the entry of contaminants into the space between the side walls 2101 of the base body 210 and the recess 200 downwards can be covered. The base body 210 is covered from above by the cover 213. In the embodiment shown, this too has a larger size than the recess 200 and thus protrudes beyond the recess 200 to the outside. In the embodiment according to Figures 6 and 7 an external lighting unit 214 is provided on the base body 210, via which light L is emitted to the outside in the plane of the base body 210. Since the base body 210 is received in the base plate 20, light is thus coupled into the base plate 20 from the recess 200. In the Figure 6 the cover 213 is shown partially cut away in order to allow a view into the interior of the base body 210. In the embodiment shown, functional lighting elements 218 are arranged in the interior of the base body, which light (not shown) emit light (not shown) from the lighting module 21 downwards. The lighting module after Figures 6 and 7 can be down through an outer cover 211 shown in Figure 8 is shown to be covered. In this case, openings 2110 are made in the outer cover 211, via which the light from the functional lighting elements 218 can be output downwards. In the Figure 6 only one functional light element 218 can be seen. In Figure 7 the functional lighting elements 218 are not shown. How out Figure 7 results, lighting elements 2140 are arranged in the lighting unit 214, which can represent LEDs, for example. The lighting unit 214 can represent a circuit board, on which the LEDs are arranged. In Figure 7 only one lighting element 2140 is visible. How out Figure 7 results, the lighting module 21 has a greater height than the base plate 20. The lighting module 21 protrudes upward over the top of the base plate 20 by an amount that is greater than the amount by which the lighting module 21 protrudes downward over the underside of the base plate 20. The base body 210 and cover 213 are also designed with structures that reliably allow the cable routing of the lighting elements 2140 out of the lighting module 21.

In the Figures 9 to 11 further embodiments of the extractor hood are shown schematically. The embodiments essentially correspond to that in FIG Figure 4 shown embodiment of the extractor hood 1. It will therefore only be described the features in which the embodiments according to Figures 9 to 11 of the embodiment according to Figure 4 distinguish. In the embodiment according to Figure 9 At least one lighting element 2140 is arranged in such a way that it can emit light from the base body to the outside in the plane of the base body and thus couple it into the base plate 20. The light L emerges from the edge of the base plate 20. In particular with a polished edge of the base plate 20, the light emerges in the horizontal and thus illuminates the interior of the viewing hood 14. The embodiment according to Figure 10 differs from the embodiment according to Figure 9 in that the outer edge of the base plate 20 is provided with a facet. In this embodiment or in the case of a rougher edge, the outer contour of the base plate 20 is emphasized and the coupled-in light is output at least partially downwards. The embodiment according to Figure 11 differs from the embodiment according to Figure 9 in that the base plate 20 forms a plate which is bent downwards at least in the edge region. The base plate 20 can also have a satin finish on its top. As a result, the light L coupled in by the lighting elements 2140 is scattered flat at the bending radius and is visible to the user of the extractor hood 1.

In the embodiment according to Figures 12 and 13 an inner lighting unit 215 is provided instead of the outer lighting unit 214. The lighting elements 2150 of the lighting unit 215 emit light in the plane of the base body 210 inwards. In the base body 210 in this embodiment is a Light guide plate 216 added, through which light is coupled out downwards. In this embodiment too, an external lighting unit (not shown) can additionally be provided.

The inwardly radiating lighting elements 2150 or parts of the lighting unit 215 can also be controlled independently of one another. In this way, the area illuminated in the base body 210, in which the light guide plate 216 is arranged, is divided into several zones.

In the embodiment according to Figures 14 to 16 is instead of the light guide plate or in addition to the light guide plate Figures 12 and 13 a reflection unit 217 received in the base body 210. In the Figure 12 the reflection unit 217 is shown schematically. Eight segments are formed in this. These are formed by partition walls in the reflection unit 217. The lighting elements 2150 of the inner lighting unit 215 emit light into the different segments. In the embodiment shown, the segments are designed as triangular segments. An outer cover 211 which forms a frame is provided at the bottom on the base body 210. The light is deflected downwards by the reflection unit 217. By means of the reflection unit 217, the individual segments can be delimited from one another better than when only one light guide plate 216 is used. The geometry of the reflection unit 217 is designed in such a way that the lighting elements 2150 shine evenly over the entire luminous area.

Thanks to the fact that the lighting elements 2150 or 2140 can be switched independently of one another, colored accents and light effects can be displayed. For example, it is possible to use segments depending on user functions such as ventilation level and overrun or to display device properties such as filter saturation.

In the Figures 17 to 19 further embodiments of the lighting module 21 are shown. In Figure 17 an outer cover 211 is shown, in which openings 2110 are made, through which light, for example from a light guide plate 216 or another light guide element, such as the reflection unit 217, is passed on by the lighting elements 2150, can exit downwards In the embodiment shown, openings 2110 are arranged in such a way that they represent slots arranged in a circle. Individual slits lie under the different segments that are generated by separate control of the lighting elements 2140 and / or by the reflection unit 217. Thus, when the segment in which, for example, four slots are located, a high fan level of the fan of the extractor hood 1 can be displayed.

In the Figures 18 and 19 Another embodiment of the lighting module 21 is shown in different states. A glass cover 212 is attached to the underside of the base body 210 of the lighting module 21. The glass cover 212 is light-tight in the basic state. In the glass cover 212, however, a passage area 2120 is provided in which it is transparent. For this purpose, the glass cover 212 can be back-printed both in black opaque and in some cases in black translucent. The opaque area is cut out in the middle and backprinted in a ring shape in black translucent. If several segments of the lighting module 21 are now illuminated as described above by separate control of the lighting elements 2150 and / or the reflection unit 217, the annular passage area 2120 can be completely or partially illuminated and thus serve as a display, for example the fan level. In Figure 18 the annular passage area 2120 is illuminated, while in the Figure 19 only a few segments are illuminated and therefore only part of the annular passage area 2120 is illuminated.

In addition, a ring made of chrome / stainless steel (not shown), which has a smaller width than the annular passage area 2120, can in turn be attached to the underside of the glass cover 212. By controlling the segments in the lighting module 21, the chrome ring can be surrounded with accent rings through the printed glass cover 212 in the operating state.

With the present invention, different designs of front ends of extractor hoods in connection with base plates of an air guide unit, in particular with (glass) baffle plates, can be realized from a modular construction kit. The invention allows in particular the different placement of lighting, display and control elements while avoiding individual solutions and Solution approaches that all have their own specific influence on the overall device concept are implemented.

The present invention can be used in particular with extractor hoods in which the filter level is covered with an additional level, that is to say an air guide unit, which is for example a baffle plate. Often these levels are made of glass. This creates a graceful look. Due to its visual value, the level faces the user. The air is sucked in through a gap between the level and the edge of the device, especially the edge of the viewing hood. One speaks of an edge suction. In the case of so-called vertical food, this level only points towards the user and not towards the hob. In the case of angled dining and ceiling ventilation, the level faces both the user and the hob.

The present invention has a number of advantages. On the one hand, the freedom of design is increased, as many different lighting designs can be implemented and combined with the lighting module. Apart from the lighting module, only design parts without major technical functions have to be adapted to the desired effect. A preferably provided interface on the base body of the lighting module for design parts also allows front design on several levels. The lighting module is also customer-friendly, as it preferably has surfaces that are easy to clean. In addition, the robustness and service life of the lighting units are increased. In particular, the lighting units can be protected from the air flow and thus from moisture and grease in a simple manner by a cover and a lower cover or a glass cover. Furthermore, the lighting module represents its own, self-contained unit and can be added as a module to an existing extractor hood. An intervention in the overall conception is necessary if only to an extremely small extent. In addition, the impairment of the air flow inside the extractor hood can also be minimized by a suitable shape of the cover of the lighting module.

List of reference symbols

1

Extractor hood

10

Range hood housing

100

Inlet opening

101

Suction opening

11

Fan

12

Filter element

13

Suction gap

14th

Viewing hood

15th

Air duct

2

Air control unit

20th

Base plate

200

Recess

21st

Lighting module

210

Base body

2101

side walls

2102

foot

211

Outer cover

2110

opening

212

Glass cover

2120

Passband

213

cover

214

external lighting unit

2140

Lighting element

215

inner lighting unit

216

Light guide plate

217

Reflection unit

218

Functional light element

3

stove

4th

Mounting wall

L.

light

Claims (17)

1. Extractor hood having at least one lighting module (21), characterised in that the extractor hood (1) comprises an air guide unit (2) which has a base plate (20) which consists of light-conducting material, the at least one lighting module (21) is inserted in the base plate (20) of the air guide unit (2), that the lighting module (21) has a frame-shaped base body (210) and that at least one lighting element (2140, 2150) is arranged on the frame-shaped base body (210) such that the at least one lighting element (2140, 2150) emits light (L) in the plane of the frame-shaped base body (210).
2. Extractor hood according to claim 1, characterised in that the lighting module (21) has at least one outer lighting unit (214) which is arranged on the outside of the frame-shaped base body (210) and comprises at least one of the lighting elements (2140).
3. Extractor hood according to one of claims 1 or 2, characterised in that the lighting module (21) has at least one inner lighting unit (215) which is arranged on the inside of the frame-shaped base body (210) and comprises at least one of the lighting elements (2150).
4. Extractor hood according to one of claims 1 to 3, characterised in that the lighting module (21) has at least one flat light guide element (211, 212, 216, 217) which is received in the frame-shaped base body (210) or attached to it.
5. Extractor hood according to claim 4, characterised in that the light guide element (211, 212, 216, 217) represents a light guide plate (216), a reflection unit (217) or a cover plate (211, 212).
6. Extractor hood according to claim 5, characterised in that the reflection unit (217) is divided into multiple segments and each segment is assigned at least one lighting element (2150).
7. Extractor hood according to one of claims 5 or 6, characterised in that the cover plate (211, 212) comprises a metal plate with recesses and/or a glass plate with a coating in some areas.
8. Extractor hood according to one of claims 1 to 7, characterised in that at least one functional lighting element (218) is arranged in the lighting module (21), and emits light downwards from the lighting module (21).
9. Extractor hood according to one of claims 1 to 8, characterised in that the lighting module (21) comprises a cover (213) which covers at least the base body (210) of the lighting module (21) upwards.
10. Extractor hood according to one of claims 1 to 9, characterised in that the lighting module (21) has multiple lighting elements (2140, 2150) which can be controlled separately from one another.
11. Extractor hood according to one of claims 4 to 10, characterised in that the lighting module (21) has a mechanical interface for attaching at least one light guide element (211, 212) to the underside of the lighting module (21).
12. Extractor hood according to one of claims 1 to 11, characterised in that the base plate (20) has a recess (200) for receiving the lighting module (21) and at least one of the lighting elements (2140) of the lighting module (21) faces the edge of the recess (200) of the base plate (20).
13. Extractor hood according to one of claims 1 to 12, characterised in that at least the outer edge region of the base plate (20) has a chamfer or is curved.
14. Extractor hood according to one of claims 1 to 13, characterised in that the base plate (20) consists of glass.
15. Extractor hood according to one of claims 1 to 14, characterised in that the lighting module (21) projects downwards to the underside of the base plate (20) and upwards to the top of the base plate (20), wherein the overhang upwards is larger than the overhang downwards.
16. Extractor hood according to one of claims 1 to 15, characterised in that the air guide unit (2) represents an edge suction unit and the base plate (20) serves as a baffle plate.
17. Extractor hood according to one of claims 1 to 16, characterised in that the extractor hood (1) is a vertical hood, an inclined hood or a ceiling vent.

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