EP4224077A1 - Air outlet - Google Patents

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) and having an air connection piece (4) and an air outlet surface (5) formed by perforations, the perforations being located in a cladding panel, and several air guide elements (6, 7) arranged in front of the air outlet surface (5) in the interior (3), viewed in the direction of flow, which are each inclined relative to the air outlet surface (5). In order to further develop the air outlet (1) in this way, that the design is further optimized so that the air outlets s(1) are slimmer and the production is simplified, it is proposed that the air guiding elements (6, 7) are arranged one behind the other in the form of a row, with at least one air guiding element (6, 7 ) is inclined in a first direction relative to the air outlet surface (5) and at least one second air guiding 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) flows out in opposite directions by 180 degrees.

Description

The present invention relates to an air outlet, in particular a ceiling or wall outlet, according to the features of the preamble of claim 1.

The air passage includes an interior space enclosed by a housing. An air connection piece and an air outlet surface formed by perforations are arranged on the housing, with the perforations being located in a covering panel. Viewed in a flow direction, several air guiding elements are arranged in the interior in front of the air outlet surface. The respective air guiding elements are inclined in relation to the air outlet surface. The cladding panel can be part of the air outlet or part of a ceiling or wall construction, in particular a suspended ceiling or a curtain wall, the air outlet itself in this case, which can be described as the most typical application, in a gap between the cladding panel and a Shell ceiling or wall is arranged.

Typically, supply air is introduced via the air connection piece into the interior space enclosed by the housing. The supply air enters a room to be ventilated from the interior via the air outlet surface. The air outlet surface is formed by perforations, with the perforations being in the cladding panel. The cladding panel can be, for example, a ceiling panel, such as a grid ceiling, or a wall cladding. The housing of the air outlet can therefore also be designed without any further walls, with the perforations then being located, for example, in a panel of a grid ceiling or a wall cladding. Accordingly, in this case, the air outlet does not yet have perforations before it is installed in a panel or on a wall cladding, but initially includes 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 (of a grid ceiling or wall cladding), does the air outlet have the perforations.

In terms of the present application, the air guiding elements are arranged in front of the air outlet surface, viewed in a direction of flow. This means that the air guiding elements protrude into the interior space enclosed by the housing. The direction of flow is understood to be the direction in which the air flows from the Air connection piece flows through the interior to the room to be ventilated, whereby the direction can change.

State of the art

Such air outlets are already known in large numbers from the prior art and are used to introduce fresh air into a room. The air outlets known from the prior art normally have a cover plate arranged on the air outlet surface or are placed on such a cover plate from above. A flow parallel to the ceiling can be generated from the air outlet surface using various air guide elements.

In the German utility model DE 20 2006 007 846 U1 an air outlet - without air guiding elements - is shown with a perforated plate as a ceiling plate, the walls of the housing facing the perforated plate being assigned at an acute angle α 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 means of a corresponding air supply via an air connection piece, without the need for further guide devices apart from the walls of the housing, the connection piece and the perforated plate.

In the European patent EP 2 366 082 B1 describes another air outlet with which a desired, ceiling-parallel outflow can be generated. On the ceiling plate, which is designed as a perforated plate, there is an air guide element arranged at an angle to the ceiling plate, with which the air flow can be deflected by 180°. The guiding element is arranged at an angle α of between 5° and 15° to the air outlet surface. The air guiding element divides the interior space of the air outlet into an entry space and an exit space.

The German patent application DE 10 2014 109 927 A1 describes an air passage with at least three air guiding elements, the respective air guiding elements being arranged adjacent to one another. The air guiding elements are arranged in a circle around an axis and thus encircle a center point. Each air guiding element is arranged so that it overlaps with the adjacent air guiding element, so that an air guiding channel is formed between the respectively adjacent air guiding elements. With the help of the air guide elements arranged in a circle, a jet deflection, i.e. a deflection of the air flow of the supply air, is created.

A disadvantage of the previously known devices is the large overall width of the air passages, which results from the need for a predetermined inflow zone.

From the DE 77 12 701 U a floor panel is known which is designed in the manner of a housing and comprises a lower panel and an upper panel. The upper plate, which can have a ceiling covering, has a large number of air passage openings which run in parallel rows and each have the shape of a slot. The lower plate also has air passage openings that are covered by air guide hoods. In this way, depending on the row of air guide hoods, a different horizontal flow component is to be impressed on the air leaving the upper plate upwards, although the outflow is still quite steep upwards.

Finally revealed the DE 22 25 455 B2 an air outlet with a channel-like housing and a slit-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, so that different settings for different air ducts are possible.

Task

The object of the present invention is to further develop the air passages known from the prior art in such a way that the design is further optimized, the air passages being able to be made slimmer and the manufacture of the same being simplified. An outflow of air that is as parallel as possible to the cladding panel should also be sought.

Solution

The underlying object is achieved according to the invention by means of an air outlet with the features of claim 1. Advantageous refinements result from the associated subclaims.

The air outlet according to the invention is characterized in that the air guiding elements are arranged one behind the other in the form of a row, with at least one air guiding element being inclined in a first direction in relation to the air outlet surface and at least one second air guiding element being inclined in an opposite direction to the first direction set second direction is inclined 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 opposite directions by 180 degrees +/- 5 degrees. In this way it is achieved that the air leaving the air outlet of the first and second air guiding element is blown out into the room in opposite directions, with the two directions being rotated by 180 degrees +/-5 degrees. It is not mandatory that the inclinations of the two air guiding elements relative to the air outlet surface, i.e. the angles that the air guiding elements form with the air outlet surface, correspond in their value; it is also conceivable that the inclinations of the two air guiding elements are different, so that the air leaving the air outlet is blown into the room at different angles by the two air deflectors. In the case of a symmetrically constructed air outlet, the air guiding elements are arranged mirror-symmetrically to one another with regard to a vertically aligned central plane of the housing running parallel to a longitudinal direction of the air outlet.

Accordingly, the air outlet according to the invention has at least two air guiding elements, it being possible for the number of air guiding elements to be adapted to a desired length of the air outlet. The air outlet according to the invention advantageously has four or more air guiding elements. It is therefore conceivable that the air outlet has, for example, four, six, eight, ten or another number of air guiding elements. It is also conceivable that it has an odd number of air guiding elements.

Within the meaning of the present application, the respective air guiding element is inclined in the direction of the interior of the air outlet and not into the space to be ventilated with respect to the air outlet surface. A vertex of an acute angle of inclination, which the at least one air guiding element encloses with the air outlet surface, is preferably arranged in one area, ie in the vicinity of an elongated side wall of the housing. An apex of an acute angle of inclination of the at least one second air guiding element is preferably arranged correspondingly in a region, ie in the vicinity of an opposite, elongated side wall of the housing. This means that—viewed in cross section of the air passage—a distance between the respective air guiding element and the air outlet surface on a side wall is smaller than in a central region of the air passage.

The advantage of the air outlet according to the invention is that an air flow can escape from the air outlet over large areas of the air outlet surface in the direction of two opposing, preferably elongated side walls, preferably at least essentially parallel to the ceiling. The overall width of Air passage can thus be reduced compared to the devices known from the prior art. It is also possible to dispense with two adjacent air passages, each causing the supply air to flow out in opposite directions, since the supply air can flow out in two directions by means of the air passage according to the invention. Consequently, with the air outlet according to the invention, the supply air can flow out in two directions, even though the air outlet is designed to be narrow in contrast to the air outlets known from the prior art.

The air outlet according to the invention can preferably have a width of between 5 cm and 50 cm, more preferably between 10 cm and 30 cm. A height of the air outlet according to the invention results from the desired amounts of air and can preferably be between 10 cm and 50 cm. The length of the air outlet according to the invention can be configured very individually.

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

Advantageously, it is provided that of the air guiding elements arranged in a row, one air guiding element is inclined in the first direction and one air guiding element in the second direction with respect to the air outlet surface alternately one behind the other. The air guiding elements are preferably arranged in relation to one another in such a way that the two respective opposing air flows do not interfere with one another. Due to the alternating arrangement of the two air guiding elements, the air flow introduced into the air passage can preferably be divided as evenly as possible, so that the volume flow is preferably the same in both directions. It is conceivable that the number of air guiding elements inclined in the first direction corresponds to the number of air guiding 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.

Alternatively, it is conceivable that at least two air guiding elements arranged one behind the other are inclined in the same direction relative to the air outlet surface and at least two air guiding elements adjoining them in the row are inclined in the second direction relative to the air outlet surface. Depending on the spatial conditions it can It can also be useful for adjacent air guiding elements to be inclined alternately in the first and in the 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 guiding elements to have different widths, so that the same outflow direction can be achieved over larger or smaller distances, depending on the situation. It becomes clear that the orientation of the air guiding elements can be selected and provided individually.

A further development of the invention provides that a plurality of preferably all air guide 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 metal sheet or a plate, which preferably interlock in a comb-like manner . The respective sawtooth-shaped component preferably forms a type of tooth comb, with the respective air guiding elements, which are inclined in the same direction, jointly forming a tooth comb. Two components can preferably be separated from a metal sheet or a plate by cutting the metal sheet or plate in a sawtooth shape, for example in the middle. A first part of the severed metal sheet 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 metal sheet or plate preferably also forms a plurality of spaced-apart air-guiding elements inclined in the same direction to the air outlet surface but in the opposite direction as the air-guiding elements of the first part. The air guiding elements of the first part preferably engage in the gaps, ie in areas in which no air guiding elements are arranged, of the second part. The air guiding elements of the first part are inclined in the first direction relative to the air outlet surface and the air guiding elements of the second part are inclined relative to the air outlet surface in a second direction opposite to the first direction. The respective separated components can have a square, rectangular, rhombic, trapezoidal or sinusoidal separation line. The dividing line forms a cutting edge, for example of a punching tool, at which the components are separated from one another.

In a further refinement of the invention, it is provided that at least one, preferably all of the air guiding element or elements inclined in the first direction is or are movable relative to at least one, preferably all of the air guiding element or elements inclined in the second direction, preferably in one Direction perpendicular to the direction of the row of air guiding elements and/or parallel to the air outlet surface. Due to the mobility of the air guiding element or the air guiding elements in a direction perpendicular to the direction of the row of air guiding elements, a distance between two air guiding elements with opposite inclination in a direction perpendicular to the longitudinal axis of an air outlet can be changed. The air guiding elements can thus be more or less nested in one another. This allows the flow behavior to be adjusted depending on the area of application. For example, the air outlet area through which the air flows can be enlarged or reduced. A shift in a direction parallel to the air outlet surface can also be advantageous, since in this way the flow behavior can also be adapted depending on the area of application.

It has turned out to be advantageous in terms of flow that an angle of inclination of at least one air guiding element, preferably all air guiding elements, relative to the air outlet surface is between 3 degrees and 15 degrees, preferably between 5 degrees and 10 degrees. In the sense of the present application, the angle of inclination is formed by a plane spanned by the respective air guiding element and the air outlet surface. In this case, the acute angle of inclination preferably points in the direction of a side wall, preferably the elongated side wall, of the air outlet.

In order to change the outflow of air from the air outlet, it is advantageously provided that an angle of inclination of at least one air guiding element, preferably all air guiding elements, can be adjusted relative to the air outlet surface. The position of the air guiding elements can thus be adapted to the respective application.

• Normalstellung: Die jeweiligen Luftleitelemente sind in einem, vorzugsweise veränderbaren, Neigungswinkel zu der Luftaustrittsfläche angeordnet, so dass eine beidseitige, zumindest im Wesentlichen deckenparallele Ausströmung vorliegt.
• Halbseitige Verschlussstellung: Eine der in einer Reihe angeordneten und in die gleiche Richtung ausgerichteten Luftleitelemente verschließen die Luftaustrittsfläche zumindest teilweise, so dass die Luft lediglich in eine Richtung, deckenparallel in den Raum ausströmen kann. Eine Ausströmung in die andere Richtung ist nicht möglich, da die Luftleitelemente den Strömungsweg verschließen.
• Verschlussstellung: Die jeweiligen Luftleitelemente sind unmittelbar auf der Luftaustrittsfläche angeordnet, so dass sie die Luftaustrittsfläche flächig verdecken. Das heißt, jeweils eine von einem Luftleitelement aufgespannte Ebene ist parallel zu der Luftaustrittsfläche angeordnet. Es kann folglich keine Luft aus dem Luftdurchlass ausströmen. Der Raum wird nicht mit Zuluft aus dem Luftdurchlass versorgt.
• Verschobene Verschlussstellung: Die jeweiligen Luftleitelemente sind unmittelbar auf der Luftaustrittsfläche angeordnet und somit ist die jeweilige Ebene der Luftleitelemente parallel zur Luftaustrittsfläche angeordnet. Zudem sind benachbarte Luftleitelemente ineinander verschachtelt, so dass die Luftaustrittsfläche nicht gänzlich von den Luftleitelementen verdeckt ist. Zwischen jeweils zwei benachbarter, ineinander verschachtelter Luftleitelemente ist ein vorzugsweise einstellbarer Spalt gegeben, durch den Zuluft entweichen kann. Die Zuluft strömt in diesem Zustand hauptsächlich senkrecht aus dem Luftdurchlass aus. Der Öffnungsquerschnitt beträgt in dieser Stellung vorzugsweise bis maximal 50% des gesamten Öffnungsquerschnitts.
• Vollständige Öffnungsstellung: Die jeweilige von dem Luftleitelement aufgespannte Ebene ist senkrecht zu der Luftaustrittsfläche angeordnet. Der Öffnungsquerschnitt ist somit vorzugsweise annährend 100% geöffnet. Die Luft wird senkrecht in den Raum eingeleitet.
• Verschobene Normalstellung: Die jeweiligen Luftleitelemente beziehungsweise die von dem jeweiligen Luftleitelement aufgespannten Ebenen sind in einem Winkel zu der Luftaustrittsfläche angeordnet, und ineinander verschachtelt. Diese Stellung bewirkt typischerweise eine Wirbelströmung, da die Zuluft sowohl horizontal als auch vertikal aus dem Luftdurchlass ausströmt.

The following positions would be conceivable, for example:

• Normal position: The respective air guiding elements are arranged at a preferably changeable angle of inclination to the air outlet surface, so that there is an outflow on both sides, at least essentially parallel to the ceiling.
• One-sided closed position: One of the air guide elements arranged in a row and aligned in the same direction closes the air outlet surface at least partially, so that the air can only flow out into the room in one direction, parallel to the ceiling. An outflow in the other direction is not possible because the air guide elements close the flow path.
• Closing position: The respective air guide elements are arranged directly on the air outlet surface so that they cover the entire surface of the air outlet surface. This means that in each case one plane spanned by an air guiding element is arranged parallel to the air outlet surface. As a result, no air can flow out of the air passage. The room is not supplied with supply air from the diffuser.
• Shifted closed position: The respective air guiding elements are arranged directly on the air outlet surface and thus the respective level of the air guiding elements is arranged parallel to the air outlet surface. In addition, adjacent air guiding elements are nested in one another, so that the air outlet surface is not completely covered by the air guiding elements. Between each two adjacent, nested air guide elements, there is a preferably adjustable gap through which the supply air can escape. In this state, the supply air mainly flows vertically out of the air outlet. In this position, the opening cross section is preferably up to a maximum of 50% of the entire opening cross section.
• Completely open position: The respective plane spanned by the air guiding element is arranged perpendicularly to the air outlet surface. The opening cross-section is thus preferably approximately 100% open. The air is introduced vertically into the room.
• Shifted normal position: The respective air guiding elements or the planes spanned by the respective air guiding element are arranged at an angle to the air outlet surface and nested in one another. This position typically causes a turbulent flow, since the supply air flows out of the air diffuser both horizontally and vertically.

An advantageous further development of the invention provides that the housing can be detached from the air outlet surface formed by a perforated cover plate. A detached ceiling panel has the advantage that the air guiding elements can be changed, replaced or repaired subsequently, ie when the ceiling air outlet is installed. The ceiling panel also offers privacy protection.

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 guiding 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 reminiscent of a comb with a long one Bar and it outgoing teeth. The manufacture is also particularly easy to implement, in particular when a sawtooth-shaped component is cut out of a metal sheet or a plate, if a strip is arranged between the two air guiding elements. Because it is therefore not necessary for the air guiding elements to be separated from one another. By means of the respective web, the air outlet area can also be reduced in relation to the perforated cover plate, at least in the edge areas. This improves the flow behavior.

In a further refinement of the invention, it is provided that at least one air guiding element, preferably all air guiding elements, has or have a bending axis arranged perpendicularly to a longitudinal axis of the air outlet, with the respective air guiding element being able to be bent or bent along this bending axis in the direction of the air outlet surface. The outflow of the supply air from the air outlet can be changed by means of the ability to bend or bend the respective air guiding element.

Alternatively, it would be conceivable for a respective air guiding element to be flat, curved, beveled or flat in its transverse profile. Depending on the desired outflow, the appropriate air guide element can be selected.

It has turned out to be particularly advantageous that the respective air guiding elements are shaped flat.

A further embodiment of the invention provides that adjacent air guiding elements--viewed in the direction of the row of air guiding elements--butt against one another. The air flow can thus be divided precisely and flow out in the two intended directions.

Alternatively, it is conceivable for a wall to be arranged at least between two adjacent air guiding elements, which are preferably aligned in different directions. There is preferably a wall between all adjacent air guiding elements. The flow behavior of the supply air from the air outlet can thus be improved. Eddy currents in the immediately adjacent areas of two air guiding elements, which are aligned in different directions, can be avoided with the help of the walls and the spatial separation of the air guiding elements as a result.

A further alternative further development of the air outlet according to the invention provides that at least one air guiding element has a slot on at least one side which is arranged adjacent to another air guiding element, the slot preferably allows a displacement of the air guiding element in a direction parallel to the direction of the row of air guiding elements, so that preferably two adjacent air guiding elements can be at least partially pushed into one another. A displacement of the air guiding elements in the direction of the longitudinal axis of the air outlet, so that two adjacent air guiding elements can be pushed into one another, can be implemented in particular if at least one of two adjacent air guiding elements has a slot. The respective slot is preferably arranged on one side or two sides of the respective air guiding element. The telescoping of two adjacent air guiding elements results in a distance between the respective other adjacent air guiding elements being increased. This means that the respective air guiding element is at a large distance from the adjacent air guiding element on one side, whereas the adjacent air guiding elements overlap on the opposite side. The air can be introduced vertically downwards into the room through this resulting distance and no longer flows horizontally along the ceiling, at least at these openings. This position is particularly advantageous when heating a room where the supply air has to be fed into the room downwards against the thermals.

An advantageous further development of the invention provides that a flow cross-section formed between an air guiding element and the air outlet surface can be closed by means of a bulkhead element, which is preferably oriented perpendicular to the air outlet surface and/or can be moved in a direction perpendicular to the air outlet surface, such that a the relevant air guiding element and the air outlet surface located in the gusset space is separated from the supply air conducted through the connecting piece into the interior of the housing. In a lowered position, in which the bulkhead is preferably arranged directly on the air outlet surface, the rear part of the air outlet surface and of the corresponding air guiding element, namely the gusset space, viewed in the flow direction, is closed off. The supply air is thus blown into the room in a vertical direction. This position is particularly important for heating cases, as the supply air can be blown vertically and deep into the room. On the other hand, if the space is to be cooled, it is advantageous if the bulkhead is arranged at a distance from the air outlet surface, so that the gusset space can also be flowed through by supply air. The supply air will preferably flow out in a horizontal direction along the ceiling.

A further advantageous embodiment provides that the bulkhead element can be driven by means of a thermal drive, preferably one based on the thermal expansion of a wax based thermal drive, from an open position in which the bulkhead element releases the flow cross section, can be converted into a closed position in which the bulkhead element blocks the flow cross section at least partially. The bulkhead element can preferably be moved into the correct position automatically and without external energy by means of the thermal drive. For example, if a room is cold, the bulkhead element lowers and closes the flow cross-section in the area of the gusset space, so that warm supply air is blown vertically into the room. If, on the other hand, a room is warm, the bulkhead element opens and thus releases the flow cross section through the gusset space, whereby an increasingly horizontal outflow is achieved. Cold supply air is then blown into the room in a horizontal direction along the ceiling and slowly "trickles" into the room, ie with a low rate of fall. In this way, a pleasant, draught-free room climate can be created.

Further developing the invention, it is provided that the at least one air guiding element is an injection-molded element. Injection molded elements can be produced very quickly and in large quantities. Furthermore, the production costs can be reduced in this way.

In addition, it can be provided according to the invention that the cladding panel and the air guiding elements form different components. If the cladding panel is formed by a ceiling panel or wall cladding, the air outlet can easily be retrofitted in existing buildings. In this regard, it can also be provided that the air outlet is placed on a regularly perforated ceiling cladding panel and is arranged in a ceiling cavity. Alternatively, the air outlet can be arranged behind a wall covering panel.

Finally, according to an advantageous development of the air outlet according to the invention, it is provided that the air guide elements extend directly to the cladding panel with ends facing the cladding panel and/or contact the cladding panel with ends facing the cladding panel from a side facing away from the room to be ventilated. It follows from this that a gap between the cladding panel and the ends of the air guiding elements facing the cladding panel approaches zero. This optimizes the outflow of the supply air parallel to the wall or ceiling, since the Coanda effect can be optimally set thanks to the virtually "friction-free" and smooth transition from the air guide element to the cladding panel.

exemplary embodiments

Fig. 1:

Schematische Darstellung eines erfindungsgemäßen Luftdurchlasses mit Luftleitelementen,

Fig. 2:

Schematische Darstellung eines alternativen Luftdurchlasses mit Luftleitelementen,

Fig. 3:

Mehrere nebeneinander angeordnete Luftdurchlässe gemäß Figur 2 von einer Unterseite betrachtet,

Fig. 4:

Querschnitt durch einen erfindungsgemäßen Luftdurchlass mit einem Schott,

Fig. 5:

Draufsicht eines Leitelements gemäß Figur 4,

Fig. 6:

Schematische Darstellung eines erfindungsgemäßen Luftdurchlasses in einer dritten Ausführungsform,

Fig. 7:

Schematische Darstellung eines Luftleitelements gemäß Figur 6,

Fig. 8:

Schematische Darstellung eines Deckels zur Anbringung an dem Luftleitelement gemäß Figur 7,

Fig. 9:

Vergrößerte Darstellung eines Ausschnitts des erfindungsgemäßen Luftdurchlasses gemäß Figur 6.

The invention is explained in more detail below using four exemplary embodiments which are illustrated in the figures. It shows:

Figure 1:

Schematic representation of an air outlet according to the invention with air guiding elements,

Figure 2:

Schematic representation of an alternative air outlet with air guide elements,

Figure 3:

Several air outlets arranged side by side according to figure 2 viewed from an underside,

Figure 4:

Cross section through an air passage according to the invention with a bulkhead,

Figure 5:

Top view of a guide element according to figure 4 ,

Figure 6:

Schematic representation of an air outlet according to the invention in a third embodiment,

Figure 7:

Schematic representation of an air guide according to figure 6 ,

Figure 8:

Schematic representation of a cover for attachment to the air guide according to figure 7 ,

Figure 9:

Enlarged view of a section of the air passage according to the invention figure 6 .

The figure 1 shows a first embodiment of an air outlet 1 according to the invention. A housing 2 encloses an interior 3. An air connection piece 4 is arranged on the housing 2 , through which supply air is introduced horizontally into the interior 3 of the air outlet 1 . The supply air is diverted in the vertical direction to an air outlet surface 5 formed by perforations, the perforations not being shown in the figure. The air outlet surface 5 is arranged horizontally or, in an installed state of the air outlet 1 , parallel to a ceiling plane, not shown here. In principle, however, the air outlet surface can also be aligned in a wall and thus vertically. The air outlet surface 5 is formed by a large-area cladding panel 36 , which is detachably connected to the housing 2 and is shown here only partially schematically, in the form of a perforated cover panel 18 , which typically projects considerably laterally in all directions beyond the base area of the air outlet and which has the perforations. Accordingly, the air outlet 1 is placed on the cover plate 18 and uses its perforations to form the air outlet surface A in FIG The base area 17 of the housing 2 located on the air outlet area 5 is therefore significantly smaller than the total area of the perforated cover plate 18 . The air guide elements 6, 7 are each inclined relative to the air outlet surface 5 , with the respective air guide elements 6, 7 pointing into the interior 3 .

A plurality of air guiding elements 6 , 7 are arranged one behind the other along a longitudinal axis 8 of the air outlet 1 . The air guiding elements 6 are inclined in a first direction with respect to the air outlet surface 5 . An acute angle of inclination α between the air outlet surface 5 and the air guiding element 6 or a plane spanned by the air guiding element 6 is between 5 and 10 degrees, with the angle of inclination α pointing in the direction of a respective side wall 9, 10 of the air outlet 1 . The respective adjacent air guide elements 7 are inclined opposite the first direction in a second direction with respect to the air outlet surface 5 . An angle of inclination β between a plane spanned by the air guiding element 7 and the air outlet surface 5 is between 5 and 10 degrees. Each two adjacent air guide elements 6, 7 are thus inclined alternately in two different directions. In this case, the angles of inclination α and β can have different amounts or have the same value. The respective adjacent air guiding elements 6, 7 abut—viewed in one direction of the row of air guiding elements or along the longitudinal axis 8 of the air outlet 9 —to one another.

In an alternative embodiment, the angles of inclination α and β of the corresponding air guiding elements 6, 7 are adjustable, so that the air flow can be individually adapted to the prevailing environment and the conditions of use as well as the specific temperature control task.

The respective air guide elements 6, 7 are in the figure 1 arranged in such a way that the supply air is deflected in a substantially horizontal direction when it exits the air passage. This means that the supply air first exits the air outlet surface 5 at an angle corresponding to the inclination of the air guide elements 6, 7 and then nestles against the underside of a room ceiling, so that it flows horizontally along the room ceiling (Coanda effect). It can be seen that a wedge-shaped gap between the cladding panel 36 and the air guiding elements 6, 7 on the side of the air guiding elements 6, 7 facing away from the free end of the air guiding elements 6, 7 respectively goes to zero.

Again figure 1 can also be seen, the air guiding elements 6, which are each aligned in the same direction, are connected to one another by means of a web 11 , so that the air guide elements 6 inclined in the same direction together form a kind of comb. So all the air guide elements 6 inclined in the first direction together form a strip-shaped, sawtooth-shaped component 12 which was cut out of sheet metal. The air guide elements 7, which are inclined in opposite directions, are also connected to one another by a web 13 and also form a strip-shaped, sawtooth-shaped component 14. Both components 12, 14 are preferably separated from a single metal sheet.

The webs 11, 13 close the air outlet surface 5 in edge regions 15, 16, so that an outflow can be improved.

The air outlet 1 has a length 32 measured parallel to the longitudinal axis 8 , a width 33 running horizontally and perpendicularly to the longitudinal axis 8 , and a height 34 running vertically and perpendicularly to the longitudinal axis 8. A length 35 of the air guiding elements 6, 7 is approximately in the present case 90% of the width 33 of the air outlet 1. It goes without saying that the length 35 of 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.

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

The figure 2 shows an alternative embodiment of an air outlet 101 according to the invention. The air outlet 101 according to FIG figure 2 essentially corresponds to the air outlet 1 according to FIG figure 1 . However, at least one row of air guide elements 106 inclined in the same direction has a slot 19 on one side 20 . This slot 19 enables the air guiding elements 106 to be displaced in a direction along the longitudinal axis 108 of the air outlet 101. This means that two adjacent air guiding elements 106, 107 inclined in different directions are pushed into one another, so that there is a distance of 21 from the corresponding other air guiding element is enlarged. The result of this is that the supply air is blown out of the air passage 101 in an almost completely vertical direction.

An embodiment not shown here would also be conceivable, in which at least one, preferably all, air guiding elements are movably mounted in a direction perpendicular to the longitudinal axis of the air outlet or perpendicular to the direction of the row of air guiding elements. It would also be conceivable that at least one air guiding element, preferably all air guiding elements, can be moved parallel to the air outlet surface.

The figure 3 shows four air passages 101 arranged side by side according to FIG figure 2 from a bottom. Perforated ceiling panels are not shown for clarity. As can be seen clearly, the air guide elements 106, 107, which are each inclined in the same direction, are connected to one another by means of webs 11, 13 . In the case of the two central air outlets 101b , 101c , two adjacent air guide elements 106, 107 inclined in different directions are pushed into one another, as is the case with the air outlet 101 in FIG figure 2 is shown. In contrast, in the case of the two outer air outlets 101a, 101d, the air guiding elements 106, 107 inclined in different directions are not pushed into one another.

An embodiment of an air outlet, not shown here, similar to the air outlet according to FIG figure 1 , has no continuous flat air guide elements. Instead, the air guiding elements each have a bending axis arranged perpendicular to a longitudinal axis of the air outlet. The guiding elements can be bent along this bending axis in the direction of the air outlet surface, so that an air guiding plate similar to a prism is produced.

The figure 4 shows a cross section of a further alternative embodiment of an air passage 201, wherein the air passage 201 differs from the air passage 1 according to FIG figure 1 differs in that the air guiding elements 206, 207 have a central slot 22 arranged parallel to the longitudinal axis of the air outlet 201 (not shown here). This means that at least one edge area 23 of the air guiding element 206, 207 is continuous. One of these air guiding elements 206 is in the figure 5 shown, in which the slot 22 can be seen. The slot 22 is also located in a central region 24, in which the two air guiding elements 206, 207, which are inclined in different directions, intersect. A bulkhead element 25 is arranged in the slot 22 . The bulkhead element 25 is oriented perpendicular to the air outlet surface 205 and can be moved in a direction perpendicular to the air outlet surface 205 . A flow cross section 26 formed between an air guiding element 206, 207 and the air outlet surface 205 can be closed with the aid of the bulkhead element 25 , so that a gusset space 27 located between the relevant air guiding element 206, 207 and the air outlet surface 205 cannot flow through the air connection piece into the interior 203 of the Housing 202 guided supply air can flow through. 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 by means of a thermal drive, not shown here. In the closed position, the flow cross section 26 is at least partially blocked. The closed position is in the figure 4 shown.

If a room is to be cooled, the bulkhead element 25 is in its open position, so that the supply air leaves the housing 202 in a horizontal direction. If a room is sufficiently cold, the bulkhead element 25 closes the flow cross-section 26 so that warm supply air is blown vertically into the room. Of course, 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 surface 205 is illustrated. It goes without saying that the cover plate 18 runs in the plane of the air outlet surface 205 .

The figure 6 shows a further alternative embodiment of an air outlet 301. The air outlet 301 has a housing 302 and an air connection piece located on the housing 302 and not shown here. The housing 302 encloses an interior 303. A horizontal air outlet surface 305 has perforations, not shown here. In the housing 302 are several air guiding elements 306, 307 according to figure 7 arranged. The air guide elements 306 form an angle of inclination α of between 5 and 10 degrees with the air outlet surface 305 . The air guiding element 307 forms with the air outlet surface 305 an angle of inclination β of between 5 and 10 degrees, not shown here. The air guide elements 306, 307 are inserted into the housing 302 , and depending on the application, the air guide elements 306, 307 can be used in different directions. The figure 6 shows, for example, that two adjacent air guiding elements 306, 307 are 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 guiding elements to all point in the same direction or for only the middle air guiding elements to be aligned in an opposite direction. All possible orientations are conceivable using this embodiment.

The figure 7 shows one of the air passage 301 according to FIG figure 6 used air guiding elements 306. The air guiding element 306 is surrounded by a frame 28 , so that installation in the air passage 301 is simplified. The frame 28 forms a wall 29 between two adjacent air guiding elements 306, 307 , so that the two air guiding elements 306, 307 are separated from one another in terms of flow.

The air guiding element 306 is manufactured in one piece with the frame 28 from an injection molded element.

The figure 8 shows a type of cover 30 by means of which the air guiding element 306 can be closed with its frame. Likewise, the cover 30 can be used in such a way that the direction of flow can be changed.

The figure 9 shows a partial section of the air passage 301 according to FIG figure 6 . It can be seen that edge regions 124 of the air outlet 301 are covered by a web 31 so that the base area of the housing 302 formed by the air outlet area 305 is significantly smaller than a total area of the perforated cover plate, not shown here.

Reference List

1, 101, 201, 301

air passage

2, 202, 302

Housing

3,203,303

inner space

4

air connection piece

5, 205, 305

air outlet surface

6, 106, 206, 306

air deflectors

7, 107, 207, 307

air deflectors

8, 108

longitudinal axis

9

sidewall

10

sidewall

11

web

12

component

13

web

14

component

15

edge area

16

edge area

17

Floor space

18

ceiling panel

19

slot

20

Page

21

Distance

22

slot

23

midrange

24, 124

edge area

25

bulkhead element

26

flow cross-section

27

gusset space

28

Frame

29

wall

30

Lid

31

web

32

length

33

Broad

34

Height

35

length

36

cladding panel

a

tilt angle

β

tilt angle

Claims (15)

Air passage, in particular ceiling or wall outlet (1, 101, 201, 301), comprising - A housing (2, 202, 302) enclosing an interior space (3, 203, 303). ∘ an air connection piece (4, 304) and ∘ an air outlet surface (5, 205, 305) formed by perforations, the perforations being located in a covering panel, and - a plurality of air guide elements (6, 106, 206, 306, 7, 107, 207, 307) arranged in the interior (3, 203, 303), which are arranged in front of the air outlet surface (5, 205, 305) when viewed in a direction of flow and which are each inclined relative to the air outlet surface (5, 205, 305), characterized in that
the air guiding elements (6, 106, 206, 306, 7, 107, 207, 307) are arranged one behind the other in the form of a row, with at least one air guiding element (6, 106, 206, 306, 7, 107, 207, 307) in a first direction relative to the air outlet surface (5, 205, 305) and at least one second air guiding element (6, 106, 206, 306, 7, 107, 207, 307) in a second direction opposite to the first direction relative to the air outlet surface ( 5, 205, 305) is inclined, whereby - in a viewing direction perpendicular to the air outlet surface (5, 205, 305) - the air flowing through the air outlet (1, 101, 201, 301) flows out at an angle of 180 degrees +/- 5 degree opposite directions takes place. Air outlet (1, 101, 201, 301) according to Claim 1, characterized in that of the air guiding elements (6, 106, 206, 306, 7, 107, 207, 307) arranged in a row, one air guiding element (6, 106, 206, 306) in the first direction and an air guiding element (7, 107, 207, 307) in the second direction relative to the air outlet surface (5, 205, 305). Air outlet (1, 101, 201) according to one of the preceding claims, characterized in that a plurality of inclined in the first direction and / or in the second direction air guiding elements (6, 106, 206, 7, 107, 207), preferably all in the first direction and/or in the second direction inclined air guide elements (6, 106, 206, 7, 107, 207), each jointly formed by a strip-shaped sawtooth-shaped component (12, 14), preferably made of sheet metal or a plate, which preferably interlock like a comb. Air outlet according to one of the preceding claims, characterized in that at least one, preferably all of the air guiding element or air guiding elements inclined in the first direction is or are movable relative to at least one, preferably all of the air guiding element or air guiding elements 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. Air outlet (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) is between 3 degrees and 15 degrees, preferably between 5 degrees and 10 degrees. Air outlet (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. Air outlet (1, 101, 201, 301) according to one of the preceding claims, characterized in that the housing (2, 202, 302) can be detached from the air outlet surface (5, 205, 305) formed by a perforated cover plate (18). Air outlet (1, 101, 201) according to one of the preceding claims, characterized in that two air guide elements (6, 106, 206) aligned in the same direction are connected to one another by means of a web (11). Air outlet according to one of the preceding claims, characterized in that at least one air guiding element has a bending axis arranged perpendicularly to a longitudinal axis of the air opening, wherein the air guiding element can be bent or bent along this bending axis in the direction of the air outlet surface. Air outlet (1, 101, 201) according to one of the preceding claims, characterized in that adjacent air guiding elements (6, 106, 206, 7, 107, 207) - in the direction of the row of air guiding elements (6, 106, 206, 7, 107 , 207) considered - collide. Air outlet (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) aligned in different directions, preferably a wall is arranged between each adjacent air guiding element. Air outlet (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) which is arranged adjacent to another air guiding element (107), wherein the slot (19) preferably enables the air guiding element (106) to be displaced in the direction of the longitudinal axis (108) of the air outlet (101), so that preferably two adjacent air guiding elements (106, 107) aligned in different directions can be pushed at least partially into one another. Air outlet (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) by means of a bulkhead element (25) which is preferably perpendicular to the air outlet surface (205) oriented and/or movable in a direction perpendicular to the air outlet surface (205), can be closed in such a way that a gusset space (27) located between the relevant air guiding element (206) and the air outlet surface (205) cannot be Interior of the housing conducted supply air can flow through. Air outlet according to Claim 12, characterized in that the partition element (25) is 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 (25) releases the flow cross section (26) into a Closing position can be converted, in which the bulkhead element (25) at least partially blocks the flow cross section. Air outlet according to one of the preceding claims, characterized in that the at least one air guiding element (306, 307) is an injection molded element.

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