Ventilation device for supplying and / or extracting air

Abstract

The present invention relates in particular to a ventilation device (10) for supplying and / or extracting air, which is designed in particular for integration into a facade, an insulation layer or wall, comprising a facade connection element (11) with a flow-through housing (13) through which air can flow, which has a first air opening (17) leading to the outside at a first end (15).In order to easily adapt the length (L) of the ventilation device (10) to the given geometric conditions, for example to compensate for construction tolerances, it is provided that the ventilation device (10) further comprises a ventilation element (12) with a basic housing (14) through which air can flow, that the ventilation element (12) connects to the facade connection element (11) as seen from the direction of the first air opening (17), and that the facade connection element (11) and the ventilation element (12) are arranged or designed to be displaceable relative to each other.Furthermore, the facade connection element (12) should be advantageously designed and also be able to optimally drain any condensation that may occur, which is achieved, for example, by having a protective element (19), in particular a cover, a perforated sheet, a grille element or a louver or blind element, arranged directly on the facade connection element (11) to cover the first air opening (17) leading to the outside, and / or by having a device (23) for draining condensation from the facade connection element (11) provided on the facade connection element (11) in the area of ​​the first air opening (17) leading to the outside.

Description

[0001] The present invention relates to a ventilation device for supplying and / or discharging air, which is designed in particular for integration into a facade in an insulation layer, in a rear-ventilated area or wall, comprising a facade connection element, with a flow-through housing through which air can flow, which has a first air opening leading to the outside in the installed state at a first end.

[0002] Such ventilation systems and / or facade connection elements are often components of a supply and / or exhaust air system. Such supply and / or exhaust air systems typically consist of a number of different components and are usually at least partially routed through a facade, or generally a wall, or installed within it.

[0003] If one looks at such a supply and / or exhaust air system from an inside, for example from the inner surface of a wall or an interior facade, towards an outside, for example an outer surface of a wall or an exterior facade, the closure of the supply and / or exhaust air system is often formed by a facade connection element. The facade connection element has, for example, a flow-through housing through which incoming and outgoing air flows. At one end, the flow-through housing has a first air opening that leads to the outside and through which air can pass from outside to inside or air from inside to outside. The air opening is, for example, the facade closure of the facade connection element.

[0004] Particularly when a supply and / or exhaust air system consists of multiple components, it is generally not possible for the assembled components that pass through a wall to have a total length that exactly matches the thickness of the wall or the required wall finish. Instead, the total length must be adapted on-site to the thickness of the wall or the required connection point of the wall duct. This is due, for example, to the need to compensate for construction tolerances. This can be achieved by cutting the individual components to size. This is time-consuming and can also lead to unwanted damage to the components. It is also common practice to place spacers between the individual components.This, too, is structurally complex and can lead to unwanted leaks at the transition points of the wall penetration, resulting in structural damage due to moisture ingress or, in winter, frost damage. A structurally correct transition between a wall penetration component and a facade finish can conventionally only be achieved through a surface-mounted overlap or an overlap of the immediately adjacent components in front of the facade. A major disadvantage of this solution arises from the additional construction required for the facade finish, which must also be designed to be weatherproof, thus having a very detrimental impact on the facade's appearance.

[0005] DE 10 2004 001 313A1 describes a ventilation unit that is installed beneath a window structure, below a window sill. This unit is designed to exchange air between outside and inside air. According to the known solution, a cap-shaped body is mounted on a housing in such a way that relative movement between the housing and the cap-shaped body is possible. This relative movement makes it possible to compensate for construction tolerances or to adapt the ventilation device to different facade thicknesses.

[0006] DE 10 2008 020 941 A1 describes a ventilation device of the type mentioned above, which, among other things, makes it possible to remove condensate.

[0007] DE 20 2004 004 432 U1 describes a facade element for the external closure of supply and exhaust air openings in external walls, in which the facade element is integrated into a door or window reveal of the external wall and comprises a base body through which the supply and exhaust air can flow, with an inflow and outflow opening located in the plane of the door or window reveal.

[0008] Based on generally known solutions, the present invention seeks to further develop a ventilation system of the type mentioned above in such a way that the aforementioned disadvantages can be avoided. In particular, it should be possible to easily adapt the length of the ventilation system to the given geometric conditions of the building. Furthermore, a facade connection element of the ventilation system should be advantageously designed and also be able to drain any condensation that may occur.

[0009] This object is achieved according to the invention by the ventilation devices having the features according to independent patent claim 1. Further features and details of the invention emerge from the subclaims, the description and the drawings.

[0010] The present invention is based on the fundamental idea that the facade connection element of a ventilation system is designed in a special way. The facade connection element is a reveal connection.

[0011] The ventilation system according to the invention is specifically designed to expel any type of weather-related moisture ingress, such as that caused by driving rain, snow drifts, or water sluices. The outer façade finish can be freely equipped for this purpose without the need for special weather protection, for example, with a perforated screen.

[0012] According to the invention, a facade connection element serving as a reveal connection is provided. The facade connection element can, for example, be designed such that it is or can be integrated into a facade, an insulation layer, a rear-ventilated area, or generally into a wall. The facade connection element is, in particular, a component that can be implemented in the form of a flush-mounted version or concealed behind a facade cladding, so that the facade connection element, when installed, is not visible from the outside except for the first air opening, which can then form a facade closure.

[0013] In particular, the facade connection element is advantageously designed in such a way that, when installed, it sits flush with the outside of the wall, for example, the exterior facade. For plastered facades, the connection is flush with the plaster or within the plaster level; for ventilated facade systems with thick facade panels or natural stone facades, the facade connection element also sits flush with the exterior facade. For thin facade panels, the facade termination can be located directly behind the facade panel.

[0014] The facade connection element firstly has a flow-through housing through which air can flow. For this purpose, the flow-through housing of the facade connection element has at least one flow channel. Depending on the direction of flow of the air, this can flow from the inside to the outside or from the outside to the inside. At one of its ends, the flow-through housing of the facade connection element has a first air opening. Outside air can enter the facade connection element through this opening and then be passed on, for example to another component of a supply and / or exhaust air system, for example a ventilation element, an interior space, or the like. Air can also be released from the inside to the outside into the environment via this air opening. The flow-through housing therefore has a first air opening leading to the outside at a first end.Advantageously, it can be provided that the facade connection element, in particular its first outer air opening, is flush with the outer surface of a wall, for example an outer facade, a reveal or the like.

[0015] Advantageously, it can be provided that the flow-through housing of the facade connection element through which air can flow has a second opening at its other, second end, which is advantageously opposite the first end with the first air opening. This is preferably a transition opening to another component of a supply and / or exhaust air device, in particular to a ventilation element. Such a ventilation element, which will be described in more detail below, has the basic task of transporting air from the facade connection element to other components, or of transporting air to the facade connection element. Such a ventilation element can, for example, be an air duct element, in particular a flat duct element, for example with a square, in particular rectangular cross-section.Other geometries of the facade connection element may also be advantageous depending on the situation, based on the same functional principle. The ventilation element preferably has at least one flow channel.

[0016] Advantageously, it can be provided that the first air opening leading to the outside has a bevelled course in relation to the transition opening. This means that the flow-through housing can be cut at an angle in the region of the first air opening and / or in the region of the transition opening. In this way, a gradient can be created within the flow-through housing when it is in the installed state. Preferably, the gradient runs in the direction of the outer first air opening so that moisture that enters the flow-through body from the outside via the first air opening immediately drains freely again via the air opening and thus cannot leave the flow-through housing at all via the transition opening, for example in the direction of an adjoining component.Likewise, condensation that may arise when air is discharged from an interior space to the outside can easily drain toward the first external air opening. This eliminates the need for complicated and usually significantly larger weather protection measures that would otherwise be required. The present invention is not limited to specific degrees for the gradient. For example, but not exclusively, the sloped profile can be designed in such a way that, when installed, a shearwater-proof gradient of greater than or equal to 3 degrees, preferably greater than or equal to 5 degrees, is achieved.

[0017] In this way, a facade connection element with an existing gradient can be easily created. The flow channel itself in the flow-through housing can, in principle, be straight. The gradient is achieved by the angled opening of the facade connection element. Since the wall connection into which the facade connection element is installed is usually straight, the first air opening leading outwards must also be straight, as this is aligned with the wall or the wall end. This, however, means that the flow-through body of the facade connection element is installed at an angle within the wall in accordance with the gradient specified by the angled cut, so that the desired gradient is automatically established in the facade connection element with respect to the wall.

[0018] In order to be able to individually adapt the ventilation system to the existing space conditions, for example, to compensate for existing construction tolerances, the invention provides, among other things, that the ventilation system further comprises a ventilation element with a base housing through which air can flow. The ventilation element advantageously has at least one flow channel.

[0019] In principle, the invention is not limited to specific embodiments of the ventilation element. For example, the ventilation element can be an air duct element. Advantageously, the air duct element can be designed as a flat duct element.

[0020] The ventilation element can advantageously be connected or connectable to other components of a supply and / or exhaust air system, for example with components of a central or decentralized ventilation system, or the like.

[0021] Furthermore, the invention provides that the ventilation element, seen from the direction of the first air opening leading outwards, is connected to the facade connection element.

[0022] Advantageously, the facade connection element and / or the ventilation element can be made of a suitable plastic material.

[0023] According to the invention, the facade connection element and the ventilation element are arranged relative to one another in such a way that the facade connection element and the ventilation element are arranged or designed to be movable relative to one another. This allows the overall length of the ventilation system to be easily adapted to the prevailing on-site conditions, for example, to compensate for construction tolerances. The movable arrangement allows the overall length of the ventilation system to be easily varied and fixed. This ensures that the first outward-facing air opening of the facade connection element can always be flush with the outer surface of the wall in which the facade connection element is installed.

[0024] The displaceability of the two components mentioned can be realized in different ways, so that the invention is not limited to specific embodiments.

[0025] Advantageously, the facade connection element and the ventilation element can be arranged so that they can be moved into one another, in particular telescopically. When the facade connection element is installed, it is particularly provided that the adjustment area is concealed within the wall.

[0026] Furthermore, the invention is not limited to specific cross-sections for the flow-through housing of the facade connection element. Rather, the cross-section is advantageously adapted to the shape of the outer first air opening, which is visible from the outside on the wall or concealed by a protective element, and / or to the shape of an adjoining further component, for example, a ventilation element, such as an air duct element.

[0027] It is advantageously provided that the facade connection element, for example its flow-through housing, and the ventilation element, for example its base housing, have a cross-section that is adapted to one another. Of course, embodiments are also conceivable in which individual components have different cross-sections. It can advantageously be provided that the individual components have a square, in particular rectangular, cross-section. For example, it can be provided that the facade connection element is pushed or can be pushed onto the adjoining ventilation element, for example an air duct element, by means of the transition opening of the flow-through housing. For example, the air duct element can be designed as a flat duct element. In such a case, the flow-through housing of the facade connection element advantageously has a cross-section that corresponds to the cross-section of the air duct element.

[0028] Advantageously, the facade connection element overlaps the ventilation element at least in part. This creates an overlap area. In particular, it is provided that the facade connection element is pushed over the ventilation element from the outside. This prevents unwanted fluid from escaping from the transition between the facade connection element and the ventilation system. The length of the overlap area defines the range within which the total length of the ventilation system, consisting of the facade connection element and the ventilation element, can be varied. When the facade connection element is installed, it is particularly provided that the overlap area is concealed within the wall.

[0029] Advantageously, at least one fixing element can be provided to fix the facade connection element and the ventilation element in a defined position relative to each other. The invention is not limited to specific embodiments of the fixing element. For example, the fixing element can be designed in the form of a fixing screw or the like.

[0030] In a further embodiment of the present invention, a ventilation device for supplying and / or removing air is provided, which is designed in particular for integration into a facade, an insulation layer, a rear-ventilated area, or a wall, comprising a facade connection element with a flow-through housing through which air can flow and which has a first air opening leading outwards at a first end. The ventilation device is characterized in that a protective element covering the first air opening leading outwards, in particular a panel, a perforated sheet, a grille element, or a slat or blind element, is arranged on the facade connection element.

[0031] According to the invention, the protective element, which can in particular be a weather protection element, is now attached directly to the facade connection element. Previously, it was common for such protective elements to be attached to or on the wall or the insulation layer in a ventilated area. The inventive design not only simplifies the attachment of the protective elements but also improves the visual appearance of the wall on / in which the facade connection element is arranged. The protective element can now be attached so that it is almost flush with the wall and only protrudes from the wall by the amount of the protective element's thickness. Furthermore, it is no longer necessary to provide additional fastening means on the wall.

[0032] Advantageously, at least one fastening device is provided or formed for fastening the protective element to the facade connection element, advantageously within the flow-through housing in the region of the first air opening leading outward. The invention is not limited to specific embodiments. Some advantageous, but not exclusive, examples are explained in more detail below, particularly in connection with the description of the figures, so that reference is made to the corresponding explanations in full at this point.

[0033] In a further embodiment of the present invention, a ventilation device for supplying and / or removing air is provided, which is particularly designed for integration into a facade, an insulation layer, a rear-ventilated area, or a wall. It comprises a facade connection element with a flow-through housing through which air can flow and which has a first air opening leading outwards at a first end. The ventilation device is characterized in that a device for removing condensate from the facade connection element is provided on the facade connection element in the region of the first air opening leading outwards.

[0034] The device for draining condensate, which will also be referred to as the drainage device in the following, ensures that condensate, which is created, for example, when air is released from a warmer interior into a colder exterior environment and which is then also located in the flow-through housing of the facade connection element, can be drained out of the facade connection element without the condensate running down the wall or the facade.

[0035] According to the invention, the device for draining condensate and the facade connection element are designed as individual components and, in particular, are detachably connected to one another. In this way, the facade connection element can only be equipped with a device for draining condensate if it is actually expected that such condensate will occur in the specific application. In cases where no condensate is expected, the identically constructed facade connection element can also be used, but in these cases without the drainage device.

[0036] The invention is not limited to specific embodiments of how a connection, particularly a detachable one, between the facade connection element and the discharge device can be realized. For example, this could be realized using screw connections, plug connections, clip connections, snap-in connections, or the like. A snap-in connection could, for example, also be designed such that the discharge device is plugged onto the facade connection element, but that after the snap-in process, it is no longer possible to detach the discharge device from the facade connection element, so that the two components are subsequently inseparably connected.

[0037] Of course, designs are also conceivable in which the facade connection element and the discharge device are permanently connected to one another.

[0038] The discharge device is advantageously arranged directly on the facade connection element, for example in the lower area of ​​the first air opening leading to the outside.

[0039] The invention is not limited to specific embodiments of the drainage device. For example, but not exclusively, the device for draining condensate can be beak-shaped and / or designed with a drainage nose and / or have a drip edge. A beak-shaped design of the drainage device or a design in the form of a drain nose has the particular advantage that any condensate that forms can be drained away in such a way that it is first led out of the facade connection element via the beak or nose and away from the wall, facade or the like, and drips off at a drip edge located away from the wall. Such a drainage element then advantageously extends outwards over the facade connection element, viewed from the inside of the flow-through housing in the direction of the first air opening leading outwards.

[0040] Furthermore, it is provided that a guide for directing condensate to the drainage device is provided or formed in the facade connection element. For this purpose, a protective element covering the first air opening leading to the outside is arranged on the facade connection element, and a guide for draining condensate from the facade connection element is provided in such a way that the guide is formed from a part of the wall of the flow-through housing of the facade connection element, a part of the protective element, a part of the protective element, and a device for concealed drainage of condensate.

[0041] The condensate escaping from the facade connection element is drained away via this guide.

[0042] In addition, by appropriately designing the protective element in particular, it is also possible to ensure that escaping air is directed over this guide. The residual heat contained in the air leads to a certain amount of heating in the area of ​​the condensate guide, as the warmer air sweeps over the condensate, thus preventing ice formation there, especially at low outside temperatures. Some advantageous, but not exclusive, examples are explained in more detail below, particularly in connection with the description of the figures; therefore, reference is made here to the corresponding explanations in full.

[0043] For example, it can be provided that a rear wall of the exhaust system, viewed from the outside toward the first air opening leading outward, is set back from the plane of the first air opening. This means that this rear wall, and thus part of the exhaust system, is completely integrated into the plaster when the facade connection element is installed, within a facade panel or wall. The exhaust system and the facade connection element form a laterally circumferential, closed unit that enables a structurally sound connection in the area of ​​the wall penetration. An effective condensate drainage function is fully maintained even with a flush facade finish.

[0044] The present invention relates in particular to a ventilation device for supplying and / or removing air, which is designed in particular for integration into a facade, insulation layer or wall, comprising a facade connection element with a flow-through housing through which air can flow and which has a first air opening leading outwards at a first end. In order to be able to adapt the length of the ventilation device to the given geometric conditions in a simple manner, for example in order to compensate for construction tolerances, it is provided that the ventilation device further comprises a ventilation element with a base housing through which air can flow, that the ventilation element is connected to the facade connection element as seen from the direction of the first air opening and that the facade connection element and the ventilation element are arranged or designed to be displaceable relative to one another.In addition, the facade connection element should be attractively designed and also be able to optimally drain away any condensate that may arise, which is achieved, for example, by arranging a protective element covering the first air opening leading to the outside directly on the facade connection element, in particular a panel, a perforated sheet, a grid element or a slat or blind element, and / or by providing a device for draining condensate from the facade connection element in the area of ​​the first air opening leading to the outside.

[0045] The invention will now be explained in more detail using exemplary embodiments with reference to the accompanying drawings. Fig. 1 shows a schematic side view of a ventilation device according to the invention with a facade connection element and ventilation element; Fig. 2 The Fig. 1 shows a ventilation device, as a plan view, attached to a wall; Fig. 3 a perspective partial sectional view of the Fig. 1 shown ventilation device; Fig. 4 an enlarged partial section of the Fig. 3 shown representation; and Fig. 5 a supply and / or exhaust air system installed in a wall, in which the ventilation device according to the invention is implemented.

[0046] In the Fig. 1 and Fig. Figure 2 shows a ventilation device 10, which initially has a facade connection element 11, which may be a reveal connection. Furthermore, the ventilation device 10 has a ventilation element 12, which is designed as an air duct element, preferably as a flat duct element.

[0047] The facade connection element 11 has a flow-through housing 13 in which at least one flow channel is formed. The ventilation element 12 also has a base housing 14 in which at least one flow channel is formed.

[0048] The facade connection element 11 has a first outward-facing air opening 17 at its first end 15, which may be a facade closure and is generally closed by a protective element 19, for example, a grille element or perforated sheet. Furthermore, the facade connection element 11 has a transition opening 18 at its other end 16, by means of which the facade connection element 11 is attached to the ventilation element 12.

[0049] The ventilation element 12, which can be attached to a wall via a fastening device 20, as shown in Fig. 2, is closed at its rear end 21 with an end cover 22, but could also be equipped with further air-conditioning components.

[0050] In the lower area of ​​the first outward-leading air opening 17 of the facade connection element 11, a discharge device 23 is provided for the removal of condensate, which is discharged via the facade connection element 11. The discharge device is used in conjunction with the Fig. 3 and Fig. 4. The discharge device 23 is arranged, in particular, in a removable manner on the facade connection element 11, for example, by means of a plug-in connection. Advantageously, the facade connection element 11 can have a receptacle 24 for the discharge device 23. Furthermore, the facade connection element 11 can have a holding device 25 for wall mounting.

[0051] In order to be able to adapt the length L of the ventilation device 10 to the circumstances, for example in order to compensate for construction tolerances, the facade connection element 11 and the ventilation element 12 are arranged so as to be displaceable relative to one another. It is advantageous if the facade connection element 11 and the ventilation element 12 are arranged so as to be displaceable into one another, in particular telescopically displaceable into one another. Furthermore, it is provided that the facade connection element 11 overlaps the ventilation element 12 at least in some areas. In particular, it is provided that the facade connection element 11 is pushed over the ventilation element 12 from the outside. The length of the overlap area defines the area within which the total length L of the ventilation device 10, consisting of the facade connection element 11 and the ventilation element 12, can be varied.

[0052] In order to be able to fix the facade connection element 11 and the ventilation element 12 in a defined position relative to each other, a fixing element 26 in the form of a fixing screw is provided, which enables the length adjustment to be locked.

[0053] As can be seen in particular from Fig. 2, the outward-leading first air opening 17 of the facade connection element 11 can have a beveled profile with respect to the transition opening 18. This means that the flow-through housing 13 can be cut at an angle in the region of the first air opening 17 and / or in the region of the transition opening 18. In this way, a gradient 27 can be realized within the flow-through housing 13, and thus also within the adjoining ventilation element 12 when the latter is in the installed state. This is then an automatic gradient in the direction of the first ventilation opening 17, for example in the direction of a reveal.Preferably, the gradient 27 runs in the direction of the outer first air opening 17, so that moisture that enters the flow-through housing 13 from the outside via the first air opening 17 immediately drains freely again via the air opening 17 and thus cannot leave the flow-through housing at all via the transition opening 18, for example in the direction of the adjoining ventilation element 12. Likewise, condensation that can arise when air is discharged from an interior space to the outside can easily drain away in the direction of the first outer air opening 17 and be discharged via the discharge device 23. This makes it possible to dispense with complicated and usually much larger, otherwise necessary weather protection measures. Preferably, the sloping course is designed in such a way that, when installed, a gradient of greater than or equal to 3 degrees, preferably greater than or equal to 5 degrees, is created that is safe from shear water.

[0054] As already described, the ventilation device 10 can be part of a supply and / or exhaust air system, which may also include additional components. For this reason, it may be provided, for example, that a wall duct is located in the ventilation element 12, through which the ventilation element 12 can be connected to additional components, such as a decentralized or centralized ventilation system.

[0055] The ventilation device 10, in particular the ventilation element 12, is advantageously attached to a solid wall 29 via the fastening device 20. The facade connection element can be located in the area of ​​an opening, for example, a shell opening 30 for a window or door, in the area of ​​an insulation layer 31 in a reveal corner, a wall projection, or a facade corner. Sealing of the facade connection element 11 for direct outward passage via wall connections, insulation system, plaster level, or facade connections can advantageously be achieved using a so-called compression band seal 32, which is wrapped around the facade connection element 11 from the outside.

[0056] How to do this, especially in Fig. As can be clearly seen in Figure 2, the reveal installation of the facade connection element leads to the automatically adjusted gradient within the ventilation device 10.

[0057] In the Fig. 3 and Fig. 4 is a sectional view through the facade connection element 11 and the ventilation element 12, which are shown in the Fig. 1 and Fig. 2, with particular emphasis on the transition area between the two elements. Furthermore, the design of the facade connection element 11 is shown in greater detail.

[0058] How to Fig. 3, the flow housing 13 of the facade connection element 11 has a flow channel 33. Crossbars 44, 45 serve to stabilize the facade connection element 11. The ventilation element 12 designed as an air duct element has several flow channels, whereby in the Fig. 3 shows four exemplary flow channels 34, 35, 36, 37. The individual flow channels 34, 35, 36, 37 are separated from each other by webs 28, 39, 40. The subdivision into several flow channels can optionally be omitted.

[0059] As in Fig. As can also be clearly seen in Figure 3, the ventilation element 12 is at least partially overlapped by the facade connection element 11. This creates an overlap area 41. In particular, it is provided that the facade connection element 11 is pushed over the ventilation element 12 from the outside. The length of the overlap area 41 defines the range within which the total length of the ventilation device 10, consisting of the facade connection element 11 and the ventilation element 12, can be varied. The two elements are secured via the fixing element 26.

[0060] How to get into the Fig. 3 and Fig. As can also be clearly seen in Figure 4, the first air opening 17 of the facade connection element 11 leading outwards is covered by a protective element 19 designed as a grid / perforated sheet element. The protective element 19 is a facade closure. According to the invention, the protective element 19 is now arranged directly on the facade connection element 11. For this purpose, two fastening elements 42, 43 in the form of protective element holders are provided. The fastening elements 42, 43 are advantageously designed in the form of fastening tabs to which the protective element 19 can be fastened, for example by means of a screw connection. The fastening elements 42, 43 are advantageously located within the flow-through housing 13 in the region of the first air opening 17 leading outwards.Advantageously, the fastening elements 42, 43 are designed in such a way that a free space remains between them and the wall of the flow-through housing 11, through which condensate can be drained. This is particularly evident from . Fig. 4 can be seen.

[0061] The following is related to the Fig. 3 and Fig. 4 the discharge device 23 is described in more detail.

[0062] In order to be able to drain condensate forming or present in the ventilation system 10 to the outside, the device 23 for draining condensate from the facade connection element 11 is provided on the facade connection element 11 in the area of ​​the first air opening 17 leading outwards. The drain device 23 ensures that condensate, which arises, for example, when air is released from a warmer interior into a colder exterior environment and which is then also located in the flow-through housing 13 of the facade connection element 11, can be drained from the facade connection element 11 without the condensate running down the wall or the facade. The drain device 23 is advantageously arranged directly on the facade connection element 11 via a receptacle 24, for example in the lower area of ​​the first air opening 17 leading outwards.

[0063] The discharge device 23 and the facade connection element 11 are initially designed as individual components. For fastening, the discharge device 23 is, as shown in particular in Fig. 4, is plugged onto the receptacle 24 and connected to the receptacle 24, and thus to the facade connection element 11, by means of a snap-in connection 46.

[0064] The discharge device 23 has a drainage nose 47, which has a drip edge 48 at its free outer end. The design in the form of a drainage nose 47 has the particular advantage that condensate which forms over the overlap area 41 and the flow-through housing 11 - as indicated by arrow 49 in Fig. 4 - can be discharged in such a way that it is first led out of the facade connection element 11 via the drain nose 47 and away from the wall, the facade or the like, and drips off at the drip edge 48 located away from the wall. The discharge element 23 then extends outwards over the facade connection element 11, as seen from the inside of the flow-through housing 13 in the direction of the first outward-leading air opening 17. Advantageously, a rear wall 50 of the discharge device 23 - as seen from the outside towards the first outward-leading air opening 17 - is set back with respect to the plane of the first air opening 17. This means that this rear wall 50, and thus a part of the discharge device 23, lies in the wall when the facade connection element 11 is installed.

[0065] Furthermore, a guide 51 is provided for discharging condensate, for example in the form of drops, from the flow-through housing 13 to the drip edge 48. This guide 51 is formed by a part 52 of the flow-through housing, a part 53 of the protective element 19 with a guide edge, and the rear wall 50 of the discharge device 23. The condensate located in the facade connection element 11 is guided via this guide 51 along the Fig. 4 schematically shown guide path 54.

[0066] In addition, by designing the protective element 19 in the form of a grid element, it can also be achieved that escaping air is guided via this guide 51 along the guide path 54. This leads to a certain heating in the area of ​​the guide 51, since the warmer air sweeps over the condensate, so that ice formation there can be avoided, especially at low outside temperatures.

[0067] The Fig. Figure 5 shows a supply and / or exhaust air system 55, through which air can be transported from outside into an interior space and released back outside. The supply and / or exhaust air system 55 is installed on / in a wall 56 between interior plaster 57 and exterior plaster 58. The illustration shows the wall 56 with the insulation layer 59 in horizontal section and the reveal view of the insulation layer 59 as a vertical section. In the final assembled state, the facade connection element is completely installed in the insulation layer 59. The protective element 19, for example the grille element, adjoins the plaster area 58 within the reveal. The supply and / or exhaust air system 55 initially has a ventilation device 10 according to the invention with a facade connection element 11 and adjoining ventilation element 12, which Fig. 1 to 4 in detail, whereby to avoid repetition of their design and functioning, reference is made to the corresponding explanations for the Fig. 1 to 4 are incorporated and referred to in their entirety. The facade connection element 11 is located, in the installed state, between an outer insulation layer 59 in the area of ​​a window or a door 60. Because the facade connection element 11 and the ventilation element 12, for example in the form of an air duct element, are arranged to be displaceable relative to one another, as indicated by arrow 61, the facade connection, for example the reveal connection, can be conveniently and easily adapted to the construction tolerances.

[0068] The supply and / or exhaust air system 55 further comprises a ventilation device 62 which is integrated in the wall 56 and which is further connected to the ventilation element 12 of the ventilation device 10, for example via the Fig.2. On the inside of the wall 56, i.e., on the interior plaster 57, an inner housing 63 can be provided, for example, through which air enters or is discharged from the interior. The supply and / or exhaust air system 55 can, for example, be designed as a decentralized or centralized system, in which case the ventilation device 62 and the inner housing 63 can advantageously be components of a decentralized or centralized ventilation unit. List of reference symbols 10 Ventilation system 11 Facade connection element 12 Ventilation element (air duct element) 13 Flow housing of the facade connection element 14 Base housing of the ventilation element 15 First end of the facade connection element 16 Second end of the facade connection element 17 First outward-facing air opening of the facade connection element 18 Transition opening of the facade connection element 19 Protective element (grid element) 20 Fastening device 21 Rear end of the ventilation element 22 End caps 23 Drainage device for draining condensate 24 Mounting of the facade connection element for the discharge device 25 Holding device of the facade connection element for wall mounting 26 Fixing element (fixing screw) 27 gradients 28 Wall duct 29 Solid wall 30 Shell opening 31 Insulation level 32 compression band seal 33 Flow channel 34 flow channel 35 flow channel 36 flow channel 37 Flow channel 38 jetty 39 jetty 40 bridge 41 Overlap area 42 Fastening element (protective element holder) 43 Fastening element (protective element holder) 44 Crossbar 45 crossbar 46 Snap connection 47 Drain nose 48 Drip edge 49 Condensate drainage 50 Rear wall of the discharge device 51 Guide 52 Part of the flow housing for the guide 53 Part of the protective element for the guide 54 Guide path 55 Supply and / or exhaust air system 56 Wall 57 Interior plaster 58 Exterior plaster 59 Outer insulation layer 60 windows / doors 61 Movability of facade connection element and ventilation element relative to each other 62 Ventilation device 63 inner casing L Length of the ventilation system

Claims

[1] Ventilation device (10) for supplying and / or removing air, which is designed in particular for integration into a facade in an insulation layer, in a rear-ventilated area or a wall, comprising a facade connection element (11) with a flow-through housing (13) through which air can flow, which has a first air opening (17) leading outwards at a first end (15) in the installed state, wherein the facade connection element (11) is designed as a reveal connection, wherein the ventilation device (10) further comprises a ventilation element (12) with a base housing (14) through which air can flow, wherein the ventilation element (12) adjoins the facade connection element (11) when viewed from the direction of the first air opening (17), wherein the facade connection element (11) and the ventilation element (12) are arranged or designed to be displaceable relative to one another,wherein a discharge device (23) for discharging condensate from the facade connection element (11) is provided on the facade connection element (11) in the region of the first air opening (17) leading outwards, which is designed such that condensate located in the flow-through housing (13) of the facade connection element (11) can be discharged from the facade connection element (11) via this device without the condensate running down the wall or facade, wherein a protective element (19) covering the first air opening (17) leading outwards is arranged on the facade connection element (11), and wherein a guide (51) for discharging condensate along a guide path (54) from the facade connection element (11) is provided, wherein the guide (51) is formed from a part (52) of the wall of the flow-through housing (13) of the facade connection element (11), a part (53) of the protective element (19) following along the guide path (54),which has a guide edge which diverts the condensate running off along the guide path (54), and a wall (50) of the discharge device (23) which is opposite the guide edge with respect to the guide path (54), wherein the wall (50) is set back with respect to the protective element (19) such that, in an installed state of the facade connection element (11), the wall (50) lies in the facade wall and the guide edge of the protective element (19) projects in the direction of the wall (50). [2] Ventilation device (10) according to claim 1, characterized by that the facade connection element (11) and the ventilation element (12) are arranged so as to be telescopically displaceable into one another. [3] Ventilation device (10) according to claim 1 or 2, characterized by that the facade connection element (11) overlaps the ventilation element (12) at least in some areas. [4] Ventilation device (10) according to one of claims 1 to 3, characterized bythat at least one fixing element (26) is provided for fixing the facade connection element (11) and the ventilation element (12) in a defined position relative to one another. [5] Ventilation device (10) according to one of claims 1 to 4, characterized by that the protective element (19) covering the first air opening (17) leading to the outside is a panel, a perforated sheet, a grille element or a slatted or blind element. [6] Ventilation device (10) according to claim 5, characterized by that at least one fastening device (20) is provided or formed for fastening the protective element (19) to the facade connection element (11) within the flow-through housing (13) in the region of the first air opening (17) leading to the outside. [7] Ventilation device (10) according to claim 1, characterized bythat the discharge device (23) for discharging condensate and the facade connection element (11) are designed as individual components and are in particular detachably connected or connectable to one another. [8] Ventilation device (10) according to one of claims 1 to 7, characterized by that the flow-through housing (13) of the facade connection element (11) through which air can flow has a transition opening (18) to a ventilation element (12) at its other second end (16) and that the first air opening (17) leading outwards has a bevelled course with respect to the transition opening (18). [9] Ventilation device (10) according to claim 1, characterized by that the ventilation element (12) has a wall duct (28) via which the ventilation element (12) is or can be connected to further components of a supply and / or exhaust air system.

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