Air outlet

Abstract

The invention relates to an air outlet (1), in particular a ceiling or wall outlet, comprising: - a housing (2) enclosing an interior space (3) with ∘ an air connection nozzle (4) and ∘ an air outlet surface (5) formed by perforations, wherein the perforations are located in a cladding panel, and several air guide elements (6, 7) arranged in the interior space (3) in a flow direction in front of the air outlet surface (5), each of which is inclined relative to the air outlet surface (5).In order to further develop the air passage (1) in such a way that the design is further optimized so that the air passages s(1) are slimmer and the manufacturing is simplified, it is proposed that the air guide elements (6, 7) are arranged in a row, wherein at least one air guide element (6, 7) is inclined in a first direction relative to the air outlet surface (5) and at least one second air guide element (6, 7) is inclined in a second direction opposite to the first direction relative to the air outlet surface (5), whereby - in a viewing direction perpendicular to the air outlet surface (5, 205, 305) - the air flowing through the air passage (1, 101, 201, 301) is directed in directions 180 degrees opposite.

Description

[0001] The present invention relates to an air outlet, namely a ceiling or wall outlet, according to claim 1

[0002] The air outlet comprises an interior space enclosed by a housing. An air connection nozzle and an air outlet surface formed by perforations are arranged on the housing, the perforations being located in a cladding panel. In the interior space, several air guide elements are arranged in front of the air outlet surface as viewed in the direction of flow. The respective air guide elements are inclined relative to the air outlet surface. The cladding panel can be part of the air outlet or belong to a ceiling or wall construction, in particular a suspended ceiling or a curtain wall, whereby the air outlet itself in this case, which can be described as the most typical application, is arranged in a space between the cladding panel and a structural ceiling or wall.

[0003] Typically, supply air is introduced into the interior space enclosed by the housing via the air connection piece. The supply air enters the room to be ventilated from the interior space via the air outlet surface. The air outlet surface is formed by perforations, with the perforations being located in the cladding panel. The cladding panel can, for example, be a ceiling panel, such as a grid ceiling, or wall cladding. The housing of the air diffuser can therefore also be designed without any further wall, with the perforations then being located, for example, in a panel of a grid ceiling or wall cladding. In this case, the air diffuser does not have any perforations before it is mounted in a panel or on a wall cladding, but initially has a free outlet cross-section for the air.Only after the housing has been placed on the cladding panel, i.e. a corresponding perforated sheet (a grid ceiling or wall cladding), does the air outlet have the perforations.

[0004] For the purposes of the present application, the air guide elements are arranged in front of the air outlet surface, viewed in a flow direction. This means that the air guide elements extend into the interior space enclosed by the housing. The flow direction is understood to be the direction in which the air flows from the air connection nozzle through the interior space to the space to be ventilated, although the direction can vary. State of the art

[0005] Numerous such air outlets are already known from the prior art and are used to introduce fresh air into a room. The air outlets known from the prior art usually have a ceiling panel arranged at the air outlet surface or are mounted on such a panel from above. Various air guide elements can be used to create an air flow parallel to the ceiling from the air outlet surface.

[0006] The German utility model DE 20 2006 007 846 U1 describes an air diffuser – without air guide elements – with a perforated sheet as the ceiling panel, with the casing walls facing the perforated sheet being positioned at an acute angle α of between 3° and 25° to the ceiling plane. With this arrangement of the walls, turbulent mixed ventilation with a high induction effect can be achieved by supplying the air via an air connection nozzle. Apart from the casing walls, the connection nozzle, and the perforated sheet, no additional guide devices are required.

[0007] European patent EP 2 366 082 B1 describes another air vent that can be used to create a desired airflow parallel to the ceiling. On the perforated ceiling panel, which is formed as a sheet metal, there is an air guide element arranged at an angle to the ceiling panel, which can deflect the airflow by 180°. The guide element is arranged at an angle α of between 5° and 15° to the air outlet surface. The air guide element divides the interior of the air vent into an inlet chamber and an outlet chamber.

[0008] German patent application DE 10 2014 109 927 A1 describes an air vent with at least three air guide elements, wherein the respective air guide elements are arranged adjacent to one another. The air guide elements are arranged in a circle around an axis and thus orbit a center point. Each air guide element overlaps the adjacent air guide element, so that an air guide channel is formed between the adjacent air guide elements. The circularly arranged air guide elements create a jet deflection, i.e., a redirection of the supply air flow.

[0009] A disadvantage of the devices known to date is the large overall width of the air outlets, which results from the need for a predetermined inflow zone.

[0010] DE 77 12 701 U discloses a floor panel designed like a casing and comprising a lower panel and an upper panel. The upper panel, which may have a ceiling covering, has a plurality of air passages arranged in parallel rows, each with an elongated hole. The lower panel also has air passages covered by air guide hoods. In this way, the air leaving the upper panel upwards is imparted a different horizontal flow component depending on the row of air guide hoods, although the outflow still remains quite steeply upward.

[0011] Finally, DE 22 25 455 B2 discloses an air outlet with a duct-like housing and a slot-like air outlet surface. A guide element is arranged inside the housing, by means of which the outflow of the supply air can be influenced. The slot-like air outlet surface has recesses, so that the longitudinal edges of the air outlet surface are tooth-like. The guide element also has tooth-like edges, allowing various settings for different airflow patterns. Task

[0012] The object of the present invention is to further develop the air vents known from the prior art in such a way that the design is further optimized, whereby the air vents can be made slimmer and their manufacture is simplified. Furthermore, the aim is to achieve an air flow as parallel as possible to the cladding panel. Solution

[0013] The underlying problem is solved according to the invention by means of an air vent having the features of claim 1. Advantageous embodiments emerge from the associated subclaims.

[0014] The air outlet according to the invention is characterized in that the air guiding elements are arranged one behind the other in a row, with at least one air guiding element being inclined in a first direction relative to the air outlet surface and at least a second air guiding element being inclined in a second direction opposite to the first direction relative to the air outlet surface, whereby - in a viewing direction perpendicular to the air outlet surface - the air flowing through the air outlet flows out in directions that are 180 degrees + / - 5 degrees opposite. In this way, the air leaving the air outlet from the first and second air guiding elements is blown out into the room in opposite directions, with the two directions being rotated by 180 degrees + / - 5 degrees.It is not necessary for the inclinations of the two air guide elements relative to the air outlet surface, i.e., the angles that the air guide elements form with the air outlet surface, to be the same. Rather, it is also conceivable for the inclinations of the two air guide elements to be different, so that the air leaving the air outlet is blown into the room by the two air guide elements at different angles. In the case of a symmetrically constructed air outlet, the air guide elements are arranged mirror-symmetrically to one another with respect to a vertically aligned center plane of the housing running parallel to a longitudinal direction of the air outlet.

[0015] Accordingly, the air outlet according to the invention has at least two air guide elements, whereby the number of air guide elements can be adapted to a desired length of the air outlet. Advantageously, the air outlet according to the invention has four or more air guide elements. Thus, it is conceivable for the air outlet to have, for example, four, six, eight, ten, or any other number of air guide elements. It is also conceivable for it to have an odd number of air guide elements.

[0016] For the purposes of the present application, the respective air guide element is inclined relative to the air outlet surface toward the interior of the air outlet and not into the space to be ventilated. A vertex of an acute angle of inclination, which the at least one air guide element forms with the air outlet surface, is preferably arranged in one region, i.e., near an elongated side wall of the housing. A vertex of an acute angle of inclination of the at least one second air guide element is preferably arranged correspondingly in one region, i.e., near an opposite, elongated side wall of the housing. This means that—viewed in the cross-section of the air outlet—a distance between the respective air guide element and the air outlet surface is smaller at a side wall than in a central region of the air outlet.

[0017] The advantage of the air vent according to the invention is that an air flow can escape from the air vent over large areas of the air outlet surface in the direction of two opposing, preferably elongated side walls, preferably at least substantially parallel to the ceiling. The overall width of the air vent can thus be reduced compared to devices known from the prior art. Likewise, two adjacent air vents, each causing the supply air to flow out in opposite directions, can be dispensed with, since the air vent according to the invention already achieves an outflow of the supply air in two directions. Consequently, the air vent according to the invention can achieve an outflow of the supply air in two directions, even though the air vent is narrow in design, in contrast to the air vents known from the prior art.

[0018] The air vent according to the invention can preferably have a width between 5 cm and 50 cm, more preferably between 10 cm and 30 cm. The height of the air vent according to the invention depends on the desired air volume and can preferably be between 10 cm and 50 cm. The length of the air vent according to the invention can be customized to a large extent.

[0019] A length of the respective air guide element measured transversely to a longitudinal axis of the air outlet is preferably at least approximately 50%, more preferably at least 70%, more preferably at least 80% of the width of the air outlet. The respective air guide elements preferably have a width running parallel to the longitudinal axis of the air outlet of between 30% and 200% of the width of the air outlet.

[0020] Advantageously, it is provided that of the air guide elements arranged in a row, one air guide element is inclined in the first direction and one air guide element is inclined in the second direction relative to the air outlet surface, one behind the other. The air guide elements are preferably arranged in such a way that the two respective opposing air flows do not interfere with one another. By alternating the two air guide elements, the air flow introduced into the air outlet can preferably be distributed as evenly as possible, so that the volume flow is preferably the same in both directions. It is conceivable that the number of air guide elements inclined in the first direction corresponds to the number of air guide elements inclined in the second direction.It is also conceivable that the number of air guiding elements inclined in the first direction differs by one from the number of air guiding elements inclined in the second direction.

[0021] Alternatively, it is conceivable for at least two air guide elements arranged one behind the other to be inclined in the same direction relative to the air outlet surface, and for at least two air guide elements adjacent to them in the row to be inclined in the second direction relative to the air outlet surface. Depending on the spatial conditions, it may also be expedient for adjacent air guide elements to be inclined alternately in the first and second direction, or in the same direction over a certain distance along a longitudinal axis of the air outlet. It would also be conceivable for adjacent air guide elements to have different widths, so that the same outflow direction can be achieved over larger or smaller distances depending on the circumstances. It is clear that the orientation of the air guide elements can be individually selected and provided.

[0022] The invention provides that a plurality of preferably all air guiding elements inclined in the first direction and / or in the second direction are each formed jointly by a strip-shaped, sawtooth-shaped component, preferably made of a sheet metal or a plate, which preferably interlock in a comb-like manner. The respective sawtooth-shaped component preferably forms a type of tooth comb, wherein the respective air guiding elements which are inclined in the same direction together form a tooth comb. Preferably, two components can be separated from a sheet metal or a plate by splitting the sheet metal or plate in a sawtooth shape, for example in the middle. A first part of the split sheet metal or plate preferably has a plurality of air guiding elements spaced apart from one another and inclined in the same direction to the air outlet surface.A second part of the severed sheet or plate preferably also forms a plurality of air guide elements arranged at a distance from one another and inclined in the same direction to the air outlet surface, but in the opposite direction to the air guide elements of the first part. According to the invention, the air guide elements of the first part engage in the gaps, i.e. in areas in which no air guide elements are arranged, of the second part. The air guide elements of the first part are inclined in the first direction relative to the air outlet surface, and the air guide elements of the second part are inclined in a second direction opposite to the first direction relative to the air outlet surface. The respective severed components can have a square, rectangular, rhombus-like, trapezoidal, or sinusoidal parting line. The parting line forms a cutting edge, e.g.a punching tool where the components are separated from each other.

[0023] In further developing the invention, it is provided that at least one, preferably all, air guide element(s) inclined in the first direction is / are movable relative to at least one, preferably all, air guide element(s) inclined in the second direction, preferably in a direction perpendicular to the direction of the row of air guide elements and / or parallel to the air outlet surface. Due to the mobility of the air guide element(s) in a direction perpendicular to the direction of the row of air guide elements, a distance between two air guide elements with opposite inclinations can be changed in a direction perpendicular to the longitudinal axis of an air outlet. The air guide elements can thus be nested to a greater or lesser extent. This allows the flow behavior to be adapted depending on the area of ​​application.For example, the air outlet area can be enlarged or reduced. A shift in a direction parallel to the air outlet area can also be advantageous, as this also allows the flow behavior to be adjusted depending on the application.

[0024] It has proven advantageous from a flow perspective for an angle of inclination of at least one air guide element, preferably all air guide elements, relative to the air outlet surface to be between 3 degrees and 15 degrees, preferably between 5 degrees and 10 degrees. In the context of the present application, the angle of inclination is formed by a plane spanned by the respective air guide element and the air outlet surface. The acute angle of inclination preferably points toward a side wall, preferably the elongated side wall, of the air outlet.

[0025] To vary the air flow from the air outlet, it is advantageously provided that the angle of inclination of at least one air guide element, preferably all air guide elements, is adjustable relative to the air outlet surface. Thus, the position of the air guide elements can be adapted to the respective application.

[0026] The following positions would be conceivable, for example: Normal position: The respective air guide elements are arranged at a preferably adjustable angle of inclination to the air outlet surface, so that an outflow on both sides, at least essentially parallel to the ceiling, occurs. Half-side closed position: One of the air guide elements arranged in a row and aligned in the same direction at least partially closes the air outlet surface, so that the air can only flow into the room in one direction, parallel to the ceiling. Outflow in the other direction is not possible because the air guide elements close off the flow path. Closed position: The respective air guide elements are arranged directly on the air outlet surface, so that they completely cover the air outlet surface. This means that one plane spanned by an air guide element is arranged parallel to the air outlet surface. Consequently, no air can flow out of the air outlet.The room is not supplied with supply air from the air outlet. Shifted closed position: The respective air guide elements are arranged directly on the air outlet surface and thus the respective plane of the air guide elements is parallel to the air outlet surface. In addition, adjacent air guide elements are nested so that the air outlet surface is not completely covered by the air guide elements. Between each two adjacent, nested air guide elements there is a preferably adjustable gap through which supply air can escape. In this state, the supply air flows out of the air outlet mainly vertically. In this position, the opening cross-section is preferably up to a maximum of 50% of the total opening cross-section. Fully open position: The respective plane spanned by the air guide element is arranged perpendicular to the air outlet surface.The opening cross-section is therefore preferably approximately 100% open. The air is introduced vertically into the room. Shifted normal position: The respective air guide elements, or the planes spanned by the respective air guide elements, are arranged at an angle to the air outlet surface and are nested within each other. This position typically creates a swirling flow, as the supply air flows out of the air outlet both horizontally and vertically.

[0027] An advantageous further development of the invention provides for the housing to be detachable from the air outlet surface formed by a perforated ceiling panel. A detachable ceiling panel offers the advantage that the air guide elements can be subsequently modified, replaced, or repaired, i.e., while the ceiling air outlet is installed. The ceiling panel also provides a visual barrier.

[0028] An advantageous embodiment of the invention provides that two air guide elements aligned in the same direction are connected to one another by means of a web. A web between two air guide elements aligned in the same direction simplifies handling when assembling the air outlet. The air guide elements, which are inclined in one direction, with their webs are thus reminiscent of a comb with a long web and teeth extending from it. Likewise, production is particularly simple, especially when cutting out a sawtooth-shaped component from a sheet metal or panel, if a strip is arranged between the two air guide elements. This eliminates the need to separate the air guide elements from one another. By means of the respective web, the air outlet area can also be reduced in relation to the perforated ceiling panel, at least in the edge areas.This improves the flow behavior.

[0029] In a further development of the invention, it is provided that at least one air guide element, preferably all air guide elements, has or have a bending axis arranged perpendicular to a longitudinal axis of the air outlet, wherein the respective air guide element can be bent or folded along this bending axis in the direction of the air outlet surface. The bending or folding capability of the respective air guide element allows the outflow of supply air from the air outlet to be varied.

[0030] Alternatively, it would be conceivable for a particular air guide element to have a flat, curved, beveled, or flat cross-section. The appropriate air guide element can be selected depending on the desired airflow pattern.

[0031] It has proven particularly advantageous that the respective air guiding elements are flat.

[0032] A further embodiment of the invention provides that adjacent air guide elements abut one another—viewed in the direction of the row of air guide elements. The air flow can thus be precisely divided and discharged in the two intended directions.

[0033] Alternatively, it is conceivable that a wall is arranged at least between two adjacent air guide elements, preferably oriented in different directions. Preferably, a wall is located between all adjacent air guide elements. This can improve the flow behavior of the supply air from the air outlet. Vortex flows in the immediately adjacent areas of two air guide elements oriented in different directions can be avoided by means of the walls and the resulting spatial separation of the air guide elements.

[0034] A further alternative development of the air outlet according to the invention provides that at least one air guide element has a slot on at least one side that is arranged adjacent to another air guide element, wherein the slot preferably enables a displacement of the air guide element in a direction parallel to the direction of the row of air guide elements, so that preferably two adjacent air guide elements can be pushed into one another at least partially. A displacement of the air guide elements in the direction of the longitudinal axis of the air outlet, so that two adjacent air guide elements can be pushed into one another, is particularly feasible if at least one of two adjacent air guide elements has a slot. The respective slot is preferably arranged on one side or both sides of the respective air guide element.Sliding two adjacent air guide elements into one another increases the distance between the other adjacent air guide elements. This means that on one side, the respective air guide element is spaced farther apart from the adjacent air guide element, while on the opposite side the adjacent air guide elements overlap. This resulting gap allows the air to be directed vertically downwards into the room and, at least at these openings, no longer flows horizontally along the ceiling. This position is particularly advantageous when heating a room, where the supply air must be directed downwards into the room against the thermal effects.

[0035] An advantageous further development of the invention provides that a flow cross-section formed between an air guide element and the air outlet surface can be closed by means of a partition element, which is preferably oriented perpendicular to the air outlet surface and / or is movable in a direction perpendicular to the air outlet surface, such that a gusset space located between the respective air guide element and the air outlet surface is separated from the supply air guided through the connection piece into the interior of the housing. In a lowered position, in which the partition is preferably arranged directly on the air outlet surface, the rear part of the air outlet surface and the corresponding air guide element, viewed in the direction of flow, namely the gusset space, is closed off. The supply air is thus blown into the room in a vertical direction.This position is particularly important for heating applications, as the supply air can be blown vertically and deeply into the room. However, if the room is to be cooled, it is advantageous to position the bulkhead at a distance from the air outlet surface so that the space between the vents can also be penetrated by the supply air. The supply air will preferably flow out horizontally along the ceiling.

[0036] A further advantageous embodiment provides that the partition element can be moved by means of a thermal drive, preferably a thermal drive based on the thermal expansion of a wax, from an open position in which the partition element releases the flow cross-section, into a closed position in which the partition element at least partially blocks the flow cross-section. By means of the thermal drive, the partition element can be moved into the correct position, preferably automatically and without external energy. If a room is cold, for example, the partition element lowers and closes the flow cross-section in the area of ​​the interstices, so that warm supply air is blown vertically into the room. If, on the other hand, a room is warm, the partition element opens and thus releases the flow cross-section through the interstices, resulting in an increasingly horizontal outflow.Cold supply air is then blown horizontally along the ceiling into the room and "trickles" slowly, i.e., at a low falling speed, into the room. This creates a pleasant, draft-free indoor climate.

[0037] In a further development of the invention, it is provided that the at least one air guide element is an injection-molded element. Injection-molded elements can be manufactured very quickly and in large quantities. Furthermore, production costs can be reduced in this way.

[0038] Additionally, according to the invention, it can be provided that the cladding panel and the air guide elements form different components. If the cladding panel is formed by a ceiling panel or wall cladding, the air vent can be easily retrofitted into existing buildings. In this regard, it can also be provided that the air vent is mounted on a regularly perforated ceiling cladding panel and arranged in a ceiling cavity. Alternatively, the air vent can be arranged behind a wall cladding panel.

[0039] Finally, according to the invention, the air guide elements extend directly to the cladding panel with their ends facing the cladding panel and / or contact the cladding panel with their ends facing the cladding panel from a side facing away from the room to be ventilated. As a result, the gap between the cladding panel and the ends of the air guide elements facing the cladding panel is reduced to zero. This optimizes the outflow of supply air parallel to the wall or ceiling, as the Coanda effect can be optimally established due to the virtually "frictionless" and smooth transition between the air guide element and the cladding panel. Examples of implementation

[0040] The invention is explained in more detail below with reference to four exemplary embodiments illustrated in the figures. It shows: Fig. 1: Schematic representation of an air outlet according to the invention with air guiding elements, Fig. 2: Schematic representation of an alternative air outlet with air guiding elements, Fig. 3: Several air outlets arranged next to each other according to Figure 2 viewed from the bottom, Fig. 4: Cross section through an air passage according to the invention with a bulkhead, Fig. 5: Top view of a guide element according to Figure 4 , Fig. 6: Schematic representation of an air passage according to the invention in a third embodiment, Fig. 7: Schematic representation of an air guide element according to Figure 6 , Fig. 8: Schematic representation of a cover for attachment to the air guide element according to Figure 7 , Fig. 9: Enlarged view of a section of the air passage according to the invention according to Figure 6 .

[0041] The Figure 1 shows a first embodiment of an air passage according to the invention 1. A housing 2encloses an interior space 3. On the housing 2 is an air connection nozzle 4 arranged, through which the supply air is drawn horizontally into the interior 3 of the air passage 1 The supply air is directed vertically to an air outlet surface formed by perforations 5 redirected, whereby the perforations are not shown in the figure. The air outlet area 5 is horizontal or in a built-in state of the air outlet 1 arranged parallel to a ceiling plane not shown here. In principle, however, the air outlet surface can also be positioned in a wall and thus vertically aligned. 5 is detachable from the housing 2 connected, here only partially shown schematically large cladding panel 36 in the form of a perforated ceiling panel 18which typically protrudes considerably in all directions beyond the base area of ​​the air outlet and which has the perforations. Accordingly, the air passage 1 on the ceiling panel 18 and uses their perforations to form the air outlet surface. A 5 existing floor area 17 of the housing 2 is therefore much smaller than the total area of ​​the perforated ceiling panel 18. Viewed in the direction of flow, several flat air guiding elements 6, 7 in front of the air outlet surface 5 The air guide elements 6, 7 are opposite the air outlet surface 5 inclined, whereby the respective air guiding elements 6, 7 into the interior 3 point inside.

[0042] There are several air guiding elements 6, 7 one behind the other along a longitudinal axis 8of the air passage 1 The air guide elements 6 are in a first direction opposite the air outlet surface 5 inclined. An acute angle of inclination α between the air outlet surface 5 and the air guide element 6 or one of the air guide element 6 spanned plane is between 5 and 10 degrees, whereby the angle of inclination α in the direction of a respective side wall 9, 10 of the air outlet 1. The adjacent air guide elements 7 are opposite to the first direction in a second direction opposite the air outlet surface 5 inclined. An angle of inclination β between one of the air guide element 7 spanned plane and the air outlet surface 5 is between 5 and 10 degrees. Two adjacent air guide elements 6, 7are thus alternately inclined in two different directions. The angles of inclination can α and β have different amounts or have the same value. The adjacent air guide elements 6, 7 - viewed in one direction of the row of air guide elements or along the longitudinal axis 8 of the air passage 9 - to each other.

[0043] In an alternative embodiment, the inclination angles α and β the corresponding air guide elements 6, 7 adjustable so that the air flow can be individually adapted to the respective environment and operating conditions as well as the specific temperature control task.

[0044] The respective air guide elements 6, 7 are in the Figure 1arranged in such a way that the supply air is deflected in a substantially horizontal direction upon exiting the air outlet. This means that the supply air initially enters at an angle corresponding to the inclination of the air guide elements 6, 7 from the air outlet area 5 and then clings to the underside of a ceiling, so that it flows horizontally along the ceiling (Coanda effect). It can be seen that a wedge-shaped gap between the cladding panel 36 and the air guide elements 6, 7 on the free end of the air guide elements 6, 7 opposite side of the air guide elements 6, 7 goes to zero in each case.

[0045] Again Figure 1 can also be seen, the air guide elements are aligned in the same direction 6 by means of a bridge 11 connected to each other so that the air guide elements inclined in the same direction 6together form a kind of comb. This means that all air guide elements inclined in the first direction 6 together form a strip-shaped, sawtooth-shaped component 12, which was cut out of a sheet of metal. The air guide elements, which are inclined in opposite directions, 7 are also connected to each other by a bridge 13 connected and also form a strip-shaped, sawtooth-shaped component 14. Preferably both components 12, 14 cut out of a single sheet of metal.

[0046] The footbridges 11, 13 close the air outlet area 5 in peripheral areas 15, 16, so that outflow can be improved.

[0047] The air passage 1 has a parallel to the longitudinal axis 8 measured length 32, one perpendicular to the longitudinal axis 8 and horizontal width 33and one perpendicular to the longitudinal axis 8 and vertical height 34. A length 35 the air guiding elements 6, 7 In this case, it is about 90% of the width 33 of the air passage 1. It is understood that the length 35 the air guiding elements 6, 7 can also have other values, such as 70%, 80%, 95% of the width 33 of the air outlet 1 or others.

[0048] Of course, in other embodiments, it is also conceivable for the air guiding elements not to be connected to each other via webs. The respective webs could, for example, also be arranged separately on the air outlet surface if necessary.

[0049] The Figure 2 shows an alternative embodiment of an air passage according to the invention 101. The air passage 101 according to the Figure 2essentially corresponds to the air outlet 1 according to Figure 1 . However, at least one row of air guide elements inclined in the same direction 106 a slot 19 on one side 20 This slot 19 allows the air guide elements to be moved 106 in a direction along the longitudinal axis 108 of the air passage 101. This means that two adjacent air guide elements inclined in different directions 106, 107 be pushed into each other so that a distance 21 to the corresponding other air guide element. This ensures that the supply air is directed almost completely vertically from the air outlet 101 is blown out.

[0050] Likewise, an embodiment not shown here would be conceivable in which at least one, preferably all, air guide elements are mounted for movement in a direction perpendicular to the longitudinal axis of the air passage or perpendicular to the direction of the row of air guide elements. It would also be conceivable for at least one air guide element, preferably all of the air guide elements, to be movable parallel to the air outlet surface.

[0051] The Figure 3 shows four air vents arranged next to each other 101 according to Figure 2 from the underside. For clarity, no perforated ceiling panels are shown. As can be clearly seen, the air guide elements, each inclined in the same direction, are 106, 107 by means of bridges 11, 13 connected to each other. The two middle air vents 101b, 101c are two adjacent air guiding elements inclined in different directions 106, 107shifted into each other, as is the case with the air passage 101 according to Figure 2 shown. The two outer air vents 101a, 101d are the air guiding elements inclined in different directions 106 ,107 however, are not pushed together.

[0052] An embodiment of an air vent not shown here, similar to the air vent according to Figure 1 , does not have continuous, flat air guide elements. Instead, the air guide elements each have a bending axis arranged perpendicular to a longitudinal axis of the air outlet. Along this bending axis, the guide elements can be bent toward the air outlet surface, creating a prism-like air guide plate.

[0053] The Figure 4 shows a cross section of another alternative embodiment of an air vent 201, where the air passage 201 differs from the air passage 1according to the Figure 1 distinguishes that the air guiding elements 206, 207 one in the middle, parallel to the longitudinal axis of the air outlet (not shown here) 201 arranged slot 22 This means that at least one edge area 23 of the air guide element 206, 207 is continuous. One of these air guiding elements 206 is in the Figure 5 shown in which the slot 22 is visible. The slot 22 is also located in a central area 24, in which the two air guide elements inclined in different directions 206, 207 intersect. In the slot 22 is a bulkhead element 25 arranged. The bulkhead element 25 is perpendicular to the air outlet surface 205 oriented and in a direction perpendicular to the air outlet surface 205 movable. With the help of the bulkhead element 25 is a between an air guide element 206, 207and the air outlet area 205 formed flow cross-section 26 lockable, so that a gap between the air guide element in question 206 ,207 and the air outlet area 205 located gusset space 27 not from the through the air connection nozzle into the interior 203 of the housing 202 The bulkhead element 25 is by means of a thermal actuator not shown here from an open position in which the bulkhead element 25 the flow cross-section 26 In the closed position, the flow cross-section 26 at least partially blocked. The closed position is in the Figure 4 shown.

[0054] If a room is to be cooled, the bulkhead element is 25 in its open position so that the supply air enters the housing 202in a horizontal direction. If a room is sufficiently cold, the bulkhead element closes 25 the flow cross-section 26, so that warm air is blown vertically into the room. Intermediate positions are also possible. The cladding panel 36 in the form of a ceiling panel 18 is in the Figure 4 not shown, but the air outlet area 205 It is understood that the ceiling panel 18 in the plane of the air outlet surface 205 runs.

[0055] The Figure 6 shows another alternative embodiment of an air vent 301. The air passage 301 has a housing 302 and a housing 302 located on the housing, not shown here. The housing 302 encloses an interior space 303. A horizontal air outlet surface 305has perforations not shown here. In the housing 302 are several air guiding elements 306, 307 according to Figure 7 The air guide elements 306 form with the air outlet surface 305 an inclination angle α of between 5 and 10 degrees. The air guide element 307 form with the air outlet surface 305 an angle of inclination not shown here β of between 5 and 10 degrees. The air guide elements 306, 307 are inserted into the housing 302 used, whereby depending on the application, the air guide elements 306, 307 can be used in different directions. Figure 6 shows, for example, that two adjacent air guide elements 306, 307are inclined in opposite directions. This allows the supply air to flow into the room in two different directions. However, it would also be conceivable for the air guide elements to all point in the same direction, or for only the middle air guide elements to be oriented in opposite directions. All possible orientations are possible using this design.

[0056] The Figure 7 shows one of the air passage 301 according to Figure 6 used air guiding elements 306. The air guide element 306 is from a frame 28 surrounded, so that installation in the air passage 301 simplified. The framework 28 forms between two adjacent air guide elements 306, 307 a wall 29 so that the two air guide elements 306, 307 are fluidically separated from each other.

[0057] The air guide element 306is one piece with the frame 28 made from an injection-molded element.

[0058] The Figure 8 shows a kind of lid 30 by means of which the air guide element 306 can be closed with its frame. The lid can also be 30 be used in such a way that the flow direction can be changed.

[0059] The Figure 9 shows a partial section of the air vent 301 according to Figure 6 . It is evident that marginal areas 124 of the air passage 301 by means of a bridge 31 are covered so that the air outlet surface 305 forming the base area of ​​the housing 302 is significantly smaller than the total area of ​​the perforated ceiling panel not shown here. List of reference symbols

[0060] 1, 101, 201, 301 Air outlet 2, 202, 302 Housing 3, 203, 303 Interior 4 Air connection piece 5, 205, 305 Air outlet surface 6, 106, 206, 306 Air guide elements 7, 107, 207, 307 Air guide elements 8, 108 Longitudinal axis 9 Side wall 10 Side wall 11 Web 12 Component 13 Web 14 Component 15 Edge area 16 Edge area 17 Base area 18 Ceiling plate 19 Slot 20 Side 21 Distance 22 Slot 23 Middle area 24, 124 Edge area 25 Partition element 26 Flow cross-section 27 Interstices 28 Frame 29 Wall 30Cover 31Bridge 32Length 33Width 34Height 35Length 36Covering panel αInclination angle βInclination angle

Claims

1. An air passage, namely a ceiling or wall outlet (1, 101, 201, 301), comprising - a housing (2, 202, 302) that encloses an interior (3, 203, 303) and has o an air connection piece (4, 304) and o an air outlet surface (5, 205, 305) formed by perforations, wherein the perforations are located in a cladding panel, and - multiple air guiding elements (6, 106, 206, 306, 7, 107, 207, 307) arranged in the interior (3, 203, 303), wherein said air guiding elements are, viewed in a flow direction, arranged in front of the air outlet surface (5, 205, 305) and respectively inclined relative to the air outlet surface (5, 205, 305), wherein the air guiding elements (6, 106, 206, 306, 7, 107, 207, 307) are arranged behind one another in the form of a row, wherein at least one air guiding element (6, 106, 206, 306, 7, 107, 207, 307) is inclined relative to the air outlet surface (5, 205, 305) in a first direction and at least one second air guiding element (6, 106, 206, 306, 7, 107, 207, 307) is inclined relative to the air outlet surface (5, 205, 305) in a second direction extending opposite to the first direction such that - in a viewing direction perpendicular to the air outlet surface (5, 205, 305) - an outflow of the air flowing through the air passage (1, 101, 201, 301) takes place in directions that are opposed by 180 degrees + / - 5 degrees, characterized in that the air guiding elements (6, 106, 206, 306, 7, 107, 207, 307) extend directly up to the cladding panel with ends facing the cladding panel and / or contact the cladding panel from a side facing away from the room to be ventilated with ends facing the cladding panel, wherein all air guiding elements (6, 106, 206) that are inclined in the first direction and all air guiding elements (7, 107, 207) that are inclined in the second direction respectively are formed conjointly by a lamellar, saw tooth-shaped component (12, 14), which engage into one another in a comb-like manner, and wherein air guiding elements (6, 106, 206) that are inclined in the first direction engage into gaps between the air guiding elements (7, 107, 207) that are inclined in the second direction.

2. The air passage (1, 101, 201, 301) according to claim 1, characterized in that the air guiding elements (6, 106, 206, 306, 7, 107, 207, 307) are arranged in a row in such a way that an air guiding element (6, 106, 206, 306) being inclined in the first direction and an air guiding element (7, 107, 207, 307) being inclined relative to the air outlet surface (5, 205, 305) in the second direction are arranged alternately behind one another.

3. The air passage (1, 101, 201) according to one of the preceding claims, characterized in that the lamellar, saw tooth-shaped component (12, 14) is formed from sheet metal or a plate.

4. The air passage according to one of the preceding claims, characterized in that at least one air guiding element being inclined in the first direction is movable relative to at least one air guiding element being inclined in the second direction, preferably in a direction perpendicular to the direction of the row of air guiding elements and / or parallel to the air outlet surface.

5. The air passage (1, 101, 201, 301) according to one of the preceding claims, characterized in that an angle of inclination (α, β) of at least one air guiding element (6, 106, 206, 306), preferably all air guiding elements (6, 106, 206, 306, 7, 107, 207, 307), relative to the air outlet surface (5, 205, 305) lies between 3 degrees and 15 degrees, preferably between 5 degrees and 10 degrees.

6. The air passage (1, 101, 201) according to one of the preceding claims, characterized in that an angle of inclination (α, β) of at least one air guiding element (6, 106, 206, 306), preferably all air guiding elements (6, 106, 206, 306, 7, 107, 207, 307), relative to the air outlet surface (5, 205, 305) is adjustable.

7. The air passage (1, 101, 201, 301) according to one of the preceding claims, characterized in that the housing (2, 202, 302) can be separated from the air outlet surface (5, 205, 305) formed by a perforated ceiling panel (18).

8. The air passage (1, 101, 201) according to one of the preceding claims, characterized in that two air guiding elements (6, 106, 206), which are aligned in the same direction, are connected to one another by means of a web (11).

9. The air passage according to one of the preceding claims, characterized in that at least one air guiding element has a folding axis arranged perpendicular to a longitudinal axis of the air passage, wherein the air guiding element can be folded or bent in the direction of the air outlet surface along this folding axis.

10. The air passage (1, 101, 201) according to one of the preceding claims, characterized in that adjacent air guiding elements (6, 106, 206, 7, 107, 207) abut on one another - viewed in the direction of the row of air guiding elements (6, 106, 206, 7, 107, 207).

11. The air passage (301) according to one of claims 1 to 9, characterized in that a wall is arranged at least between two adjacent air guiding elements (306, 307), wherein a wall preferably is arranged between each adjacent air guiding element.

12. The air passage (101) according to one of claims 1 to 10, characterized in that at least one air guiding element (106) has a slot (19) on at least one side (20) arranged adjacent to another air guiding element (107), wherein the slot (19) preferably allows a displacement of the air guiding element (106) in the direction of the longitudinal axis (108) of the air passage (101) such that two adjacent air guiding elements (106, 107), which are aligned in different directions, preferably can be at least partially pushed into one another.

13. The air passage (201) according to one of claims 1 to 11, characterized in that a flow cross section (26) formed between an air guiding element (206) and the air outlet surface (205) can be closed by means of a partition element (25), which preferably is oriented perpendicular to the air outlet surface (205) and / or movable in a direction perpendicular to the air outlet surface (205), in such a way that supply air being conveyed into the interior of the housing through the connection piece cannot flow through a pendentive space (27) located between the air guiding element (206) in question and the air outlet surface (205).

14. The air passage according to claim 12, characterized in that the partition element (25) can be transferred from an open position, in which the partition element (25) releases the flow cross section (26), into a closed position, in which the partition element (25) at least partially blocks the flow cross section, by means of a thermal drive, preferably a thermal drive that is based on the thermal expansion of a wax.

15. The air passage according to one of the preceding claims, characterized in that the at least one air guiding element (306, 307) is an injection-molded element.

Images