EP2975332B1 - Air duct assembly for a ceiling jet outlet and method - Google Patents

Description

The present invention relates to an air guide arrangement for a Deckenstrahlauslass, with at least three air guide elements. Furthermore, the present invention relates to a Deckenstrahlauslass with such an air guide assembly, wherein the Deckenstrahlauslass further comprises an outlet plate arranged downstream of the air guide. Finally, a method is proposed for directing air in one of the Deckenstrahlauslass.

Such Luftleitanordnungen, such Deckenstrahlauslass and such a method for conducting air are for example from the document DE 10 2007 039 306 A1 known.

Ceiling air outlets have long been known in the art. They serve to provide a room to be ventilated, for example, with cold and / or warm air over the ceiling with air. In the prior art, air guide elements are generally provided for this purpose, which are arranged upstream or, as viewed from the space to be ventilated, behind an outlet plate. The outlet plate is formed in the prior art, for example, as a flat perforated plate through whose openings the air can escape into the room.

For example, the document shows DE 44 16 841 C2 a Deckenluftauslass for cold and / or warm air in a room, wherein the variable beam guide a flat perforated plate and one or more adjustable air guide elements are arranged, wherein the air guide elements on the side facing the space of the outlet plane of the air outlet limited perforated plate are interchangeable attachable.

Furthermore, for example, the document shows DE 20 2006 007 846 U1 a ceiling air outlet with a connecting piece for at least indirect connections to an air supply system, a housing defining an air distribution space and a perforated plate forming air outlet cross-sections of the air outlet, wherein a central axis of the connection piece is aligned perpendicular to the perforated plate, starting from a central region of the housing, in which the connecting piece opens into the air distribution chamber, the perforated plate facing walls of the housing extending at an acute angle to the perforated plate circumferentially in the direction of the edge of the perforated plate.

Furthermore, for supplying air into a room ventilation devices are known, which guide the air along a ceiling of the room and cause through several openings in a lowering of the guided on the ceiling air in the room. For example, the document shows DE 2 138 539 A1 A method for blowing air into a room through at least one perforated grid, wherein the air to be injected through the perforated grid is guided along the rear side of the perforated grid in this flat flow. In addition, the document shows DE 100 649 39 A1 an air-conditioning device for a room to be ventilated or to be air-conditioned, with an air supply device having at least one air outlet, wherein an arranged in the region of the ceiling, to this one of the air duct serving free space, at least partially acting as a separating element to the ceiling air duct device whose floor plan is smaller than the floor plan of the ceiling is provided.

In such systems, it may happen that the air is blown in a straight direction in a room to be ventilated. This can sometimes lead to drafts that are uncomfortable for the people in the room. Therefore, for example, various devices have been proposed to introduce the air directed into a room. For example, the document shows DE 1 604 307 A1 an air distributor having an air inlet or outlet, wherein the air outlet is substantially larger than the air inlet, and wherein a thin, substantially flat perforated plate is arranged across the air outlet, at its upstream side stream and across the inlet an air deflector is above the outlet, wherein the air guide plate consists of a plurality of individual separate sections, each section is a one-piece plate, either a metal sheet or a plastic plate, which is divided into narrow, integrally formed with the plate interlocking webs, with respect to the Level of the baffle arranged rising in one direction and provided between the individual webs formed by the slope small openings, and wherein at the back of the perforated plate fastening devices are provided, the individual sections of the baffle releasably and independently in keep the desired air deflection position adjustable and adjustable.

Furthermore, the document shows DE 1 251 495 an air distribution device for installation in an air supply shaft, comprising a housing of rectangular cross section, at one end of an air passage delimiting upstanding edge and at the other end an air outlet with a larger cross-sectional area than the air inlet forming, outwardly diverging side walls are provided, and wherein Further, a perforated plate covering the exit end and a housing arranged air deflecting device is provided with hingedly mounted in salient Luftleitflächen in hinges.

Furthermore, so-called Luftdrallauslässe have been proposed in which a disc provided with air passages can be rotated relative to a likewise Auslassschlitze having base body, in order to regulate the air outlet through the air outlet. Through these arrangements, air flow can be generated by suitable positioning of the air guide elements and the outlet plate relative to each other, which escapes substantially along the ceiling due to further fluidic effects and can largely avoid drafts. Furthermore, such an outlet can be acoustically optimized. For example, the document shows DE 199 541 62 C1 an air outlet with a base body, on which a disk having air passages is rotatably mounted, wherein air chambers are formed between the base body and the disc by means of separating elements, which are associated with the main body passing through the outlet slots.

Another such air outlet shows, for example, the above-mentioned document DE 10 2007 039 306 A1 an air outlet with at least one outlet plate having at least one air outlet opening and with at least one Luftlenkeinrichtung upstream of the air outlet opening, which has at least one obliquely to the plane of the air outlet opening Luftleitsteg whose free end region is at least partially in overlapping position to the outlet plate or from a non-overlapping position in a Overlap position or to change the degree of overlap from a first overlap position is displaced to a second overlapping position, depending on the degree of overlap at least one emerging from the air outlet, along or along the outlet plate flowing first air flow adjusts and / or at least one emerging from the air outlet, transverse or approximately transverse to the outlet plate flowing second air flow is provided.

In such devices, the air guide elements and the outlet plate are matched to manufacture and assemble. Certain air guide elements of an air guide assembly cooperate with certain openings of the outlet plate to produce the desired fluidic effects.

The publication US 2,505,394 A shows an air guide assembly according to the preamble of claim 1 and a method according to the preamble of claim 18 for distributing air from a cooling passage in a living space.

The publication DE 7319443 U shows an air nozzle for ventilation devices with an inner swirl and throttle body, which consists of several adjustable segments.

There is therefore a need for an air guide arrangement and a Deckenstrahlauslass that allows a substantially free design of an outlet plate, so that it can be designed without technical constraints. At the same time, the usual advantages of a ceiling jet and a high potential volume flow should be maintained with low production costs.

It is therefore a technical object of the present invention to provide such an air guide assembly, such Deckenstrahlauslass and such a method for conducting air.

According to a first aspect of the invention, therefore, an air guide arrangement for a Deckenstrahlauslass is provided with at least three air guide elements, each air guide is associated with an adjacent air guide of the at least three air guide and another adjacent air guide of the at least three air guide elements, and wherein each air guide with the adjacent air guide is arranged overlapping, so that between the air guide and the adjacent air guide an air duct is formed, and is arranged overlapping with the other adjacent air guide, so that between the air guide and the other adjacent air guide another air duct is formed, wherein the air guide four Having air guide elements, and wherein the four air guide elements are each arranged at right angles to each other, and wherein each air guide aufwei a rectangular outer contour st.

In this way, it is achieved that only a beam deflection is achieved by the air guide elements of the air guide already. Each air guide element forms an air guide channel with an adjacent air guide element due to an overlapping or undercut arrangement. At the same time, this air guide element forms a further air guide channel with a further adjacent air guide element due to an overlap or undercut. With regard to the air guide element, the adjacent air guide element and the further adjacent air guide element lie on opposite sides.

This overlapping arrangement with an adjacent and a further adjacent air guide element is given for each air guide element. This implies an endless, i. for example, annular, arrangement of the air guide elements. The air guide elements are arranged quasi in a row in which the fourth air guide element overlaps again with the first air guide element. This provides, by means of the air guide channels provided solely in the air guide arrangement, a jet deflection solely in the air guide arrangement without interaction with the outlet plate. There are no further elements with predetermined to be arranged to the air guide arrangement openings to provide the desired beam deflection. The effective use of each air guide element to provide two lying on opposite sides of each air guide air ducts allows a particularly effective utilization of the provided ceiling surface with a high volume flow.

Furthermore, according to another aspect, there is provided a ceiling jet outlet for an air conditioning device having at least one air guide assembly according to the first aspect or one of its embodiments, wherein the ceiling jet outlet further comprises an outlet plate disposed downstream of the air guide assembly. In particular, the air guide elements overlap one another in a direction which runs perpendicular to the outlet plate or a plane of the outlet plate.

Such a ceiling jet outlet also relieves the benefits provided by the air guide assembly. The Deckenstrahlauslass may have exactly one Luftleitanordnung or a plurality of Luftleitanordnungen. Each baffle arrangement is assigned an outlet plate. Furthermore, the advantage for the outlet plate is that it is completely free in its design. Since the desired beam deflection is provided solely by the interaction of the air guiding elements of the air guiding arrangement, the outlet plate and the outlet openings provided in it can be designed and arranged almost completely freely.

The outlet plate should only be "thin". Herein, "thin" means that a smallest diameter of the outlet openings should correspond, for example, to at least three times the thickness of the outlet plate, in particular at least four times, more particularly at least five times the thickness of the outlet plate. Then the beams deflected by the air guiding arrangement can freely enter the space to be ventilated through the outlet openings and as a ceiling jet extending substantially parallel to a ceiling of the room. In particular, furthermore, there is no specific arrangement or geometric configuration of the outlet openings. For example, it is thus possible to completely adapt the outlet plate in its optical design to the rest of the room ceiling, so that the Deckenstrahlauslass is not perceptible by lifting off from the rest of the ceiling openings or opening arrangements.

According to another aspect of the invention, there is provided a method of directing air in a ceiling jet outlet, comprising the step of supplying air to an air guide assembly for directing the air by a plurality of air guide channels, the plurality of air guide channels being formed by at least three air guide elements. and wherein each air guiding element is assigned an adjacent air guiding element of the at least three air guiding elements and a further adjacent air guiding element of the at least three air guiding elements, and wherein each air guiding element is arranged overlapping with the adjacent air guiding element, so that between the air guiding element and the adjacent air guiding element an air duct of the number is formed by air ducts, and is arranged overlapping with the further adjacent air guide, so that a between the air guide and the other adjacent air guide another air duct of the A Number of air ducts is formed, in particular wherein a number of the air guide elements is equal to the number of air guide channels, wherein the air guide arrangement comprises four air guide elements, and wherein the four air guide elements are each arranged at right angles to each other, and wherein each having a rectangular outer contour.

Such a method diverts the supplied air solely by means of the air guide elements of the air guide arrangement, of which each air guide element is in overlap with both adjacent elements, the adjacent air guide element and the further adjacent air guide element. The large-area beam deflection provided thereby makes it possible, for example, to divert air flowing in approximately perpendicularly onto a deflection plane formed by the air guide elements so that it is essentially parallel to the deflection plane or at an acute angle to the deflection plane, in particular below a deflection angle acute angle of less than 20 °, flows out of this. A direct passage of the incoming air through the baffle is avoided due to the overlap of the air guide elements over the entire surface of the air guide. Optionally, only in a central area direct air passage are provided specifically. If, however, the air guiding elements are provided adjacent to one another in a center, as already described below, a direct inflow of air into a room with the associated drafts must already be avoided by the method provided. Instead, the air can be flowed in independently of an embodiment of an outlet plate along the ceiling with a high volume flow.

The object initially posed is therefore completely solved.

In a further embodiment of the air guide arrangement, it can be provided that the air guide arrangement is provided for guiding air flowing through the air guide arrangement from an inflow side in the direction of an outflow side, the respective air guide channel being formed between an outflow side surface of the respective air guide element and an inflow side surface of the associated adjacent air guide element is, and wherein the respective further air duct between an inflow-side surface of the respective air guide element and an outflow-side surface of the associated further adjacent air guide element is formed.

The air guide elements direct the air from an inflow side to an outflow side. The inflow side and the outflow side are opposite sides of the air guide assembly. A straight direction from the inflow side to the outflow side may also be referred to fluidically as "flow-through direction" or "main flow direction". The air guide assembly is approximately perpendicular to this flow direction. Each of the air guide elements extends obliquely at an angle to the flow direction. In particular, this angle is less than 20 °, but greater than 0 °, preferably it is between 10 ° and 20 °, more preferably about 15 °. In this way, each air guide element together with an adjacent air guide element forms an air guide channel and, together with another adjacent air guide element arranged opposite to the adjacent air guide element, forms a further air guide channel. Each air guide element thus provides an inlet side surface for an air duct, which provides the air duct limited and at the same time for another air duct an outflow side surface ready, which limits the other air duct.

In a further embodiment of the air guide arrangement, it can be provided that the four air guide elements are arranged around a central axis and form an air conduction plane extending substantially perpendicular to the central axis.

In order to provide the above-described arrangement of the air guide elements with mutual overlap or undercut, four air guide elements are provided. The four air guide elements form a rectangular or square outer contour. In order to provide the required mutual overlap, the air guide elements are to be arranged in a ring, so that the fourth air guide element overlaps again with the first air guide element. In this respect, they are arranged around a central axis around and taken together due to their oblique arrangement relative to the central axis extending substantially perpendicular to the central axis air conduction plane, which deflects parallel to the central axis of incoming air at a certain deflection angle in four different spatial directions.

Due to the mutual overlap and the overlap or undercut of the respective fourth air guide element with the first air guide element four air guide channels are formed, which corresponds to the number of air guide elements. This allows a particularly effective use of the surface covered by the air guide arrangement with regard to the volume flow which can flow through the air guide arrangement.

In an example of an air guiding arrangement not belonging to the invention, it can be provided that the air guiding arrangement has a number of n air guiding elements, where n = 3 or 5 or 6.

Such a number of air guide elements provides a structurally simple structure that can be installed quickly and easily. At the same time, this number is sufficient to provide the desired jet deflection at high flow rate.

According to the invention, the use of four air guide elements is provided because it can provide a rectangular or even square outer contour course in a simple design. In particular in connection with likewise rectangular or square outlet plates, a structurally simple but nevertheless effective beam deflection in the respective ceiling area can thus be provided.

In one embodiment of the air guide arrangement can be provided that each air guide element is provided as a baffle made of a metal.

A "sheet metal" is to be understood in particular as a so-called sheet with a thickness of 3 mm or less than 3 mm. A possible material may for example be aluminum, but it is also for example a stainless steel used. Such air baffles can be particularly easy in the form required for the present air guide assembly by known forming techniques, in particular cold forming technique, such as punching, cutting and bending bring. The air guide elements can be produced in a particularly cost-effective manner.

In a further embodiment of the air guide arrangement, provision can be made for the four air guide elements to abut one another at a point, in particular in a central region.

In this way, a closed air conduction level is provided, through which the supplied air can not pass directly and without beam deflection. The rectangular or square outer contour provided by the four air guide elements provides four air guide channels through which the incoming air must pass. The arrangement "perpendicular" to each other refers to a view from the inflow side in a straight direction to the outflow side or perpendicular to the outlet plate. The four, each having a rectangular outer contour having, air guide elements are perpendicular to each other and each overlapping, so that in turn results in a rectangular or square outer contour when looking from the inflow side in a straight line to the outflow side. Depending on their dimensions, the four air guide elements in the geometric center of the air guide arrangement can then abut one another in one point. Thus, in a center region near the geometric center, the air can not pass in a straight line through the air guide assembly. Of course, it may alternatively be provided to selectively free a region here at the geometric center in order to allow the air to flow in a straight direction into a downstream space or to strike the corresponding outlet plate.

In a further embodiment of the air guide arrangement, it can be provided that the air guide arrangement is provided for guiding air flowing through the air guide arrangement from an inflow side in the direction of an outflow side and each air guide element has the rectangular outer contour when viewed from an inflow side in the direction of an outflow side.

The rectangular outer contour also simplifies the production of the respective air guide elements. As described above, these can be formed in particular as air baffles by means of conventional techniques such as stamping and bending. In particular, so four each formed with rectangular outer contour air deflectors can be combined to form a turn rectangular or even square Luftleitanordnung.

In a not belonging to the invention variant of the air guide can be provided that the air guide has an n-angular outer contour. In one embodiment of the invention can be provided that the air guide assembly has a square outer contour. Furthermore, it can be provided in particular that the air guide arrangement is provided for guiding the air guide arrangement from an inflow side in the direction of an outflow side air flowing through and the air guide arrangement has the rectangular or square outer contour when viewed from an inflow side in the direction of an outflow side.

In this way, a rectangular, in particular square outer contour can be provided in its outer contour. Such outer contours are particularly advantageous for inserting the air guide in housing boxes, since the air guide can then be dimensioned such that no further attachment to the housing is necessary, but the air guide is inserted into the housing box. Also can be done in this way a vote with the ceiling area from which the air is to flow.

In a further embodiment of the air guide arrangement, it can be provided that each air guide element has at least one bend away from the adjacent air guide element for forming an inflow region of each air guide channel narrowing in a flow direction of the air.

By "bend" is thus understood a curvature of the air guide with a certain radius. Naturally, this radius can also be very small, for example less than 3 mm, so that substantially a bend is provided in the air-guiding element. In this way, an inlet contour of each air duct is provided with narrowing cross-section.

In a further embodiment of the air guide arrangement can be provided that each air guide element has an identical geometric shape.

This makes it possible to produce the air guide elements all completely uniform. This simplifies the manufacture of the air guide elements and makes them more cost effective.

In a further embodiment of the air guide arrangement, it can be provided that the air guide channel formed between the respective air guide element and the corresponding adjacent air guide element is further delimited in an outflow region by the further adjacent air guide element.

As will be explained below, in this way, in the case of the air guiding arrangement with four air guiding elements, an outflow region in the throughflow direction can be bounded laterally by the further adjacent air guiding element.

In a further embodiment of the air guide arrangement, it can be provided that each air guide channel has a guide section with a triangular flow cross section. In particular, the triangular flow cross section may be formed by an outflow-side surface of the respective air guide element, an inlet side surface of the associated adjacent air guide element and a side wall surface of the air guide element, in particular, the side wall surface may be formed parallel to the main flow direction through the triangular flow cross-section.

As an alternative to the side wall surface, a side wall of this parallelepiped housing may also delimit the triangular flow cross section instead of the side wall surface even in an embodiment of a ceiling jet outlet with a parallelepiped housing which will be described below.

In this way, after the inlet region, a narrow guide section is provided by means of the air guide elements, through which the air must flow. The guide section thus determines the beam deflection over the air conduction plane and affects the direction of the air flowing out of the air guide assembly.

In a further embodiment of the air guide arrangement can be provided that in each air duct each have a shut-off for regulating an air flow through the air duct is provided.

In this way it is possible to regulate the volume flow through each air duct. In particular, this regulation can be provided manually by manually releasing the shut-off element a blocking or a corresponding flow cross-section enable position. For example, it becomes possible in this way to block certain outflow directions from the air guide arrangement in a targeted manner.

In a further embodiment of the air guide arrangement can be provided that the air guide elements are loosely interleaved with each other.

Due to the design of the air guide elements, it is not absolutely necessary that they are firmly connected to each other, for example via rivets or screws. In particular, in connection with the use of a Deckenstrahlauslasses with a substantially cuboidal housing, the air guide elements can be easily inserted with appropriately nested or mutually undercutting arrangement in the box.

In an embodiment of the Deckenstrahlauslasses can be provided that the Deckenstrahlauslass is formed as a ceiling plenum, wherein the Deckenstrahlauslass has a plurality of Luftleitanordnungen, in particular and wherein downstream of each air guide an outlet plate is arranged. In principle, an outlet plate can also be provided, on which or upstream of which a plurality of air guiding arrangements are arranged.

Such a "ceiling plenum" may in particular be designed as an air duct, through which the supply air flows. Wherein the air duct has a plurality of outlet openings from which the air can escape. In this way, over a large area, a uniform decrease or leakage be provided by air for uniform ventilation of a larger surface area or space.

In an embodiment of the Deckenstrahlauslasses can be provided that the Deckenstrahlauslass a substantially cuboid housing, in particular a cuboid housing, wherein the outlet plate is arranged downstream of the air guide and forms a wall of the cuboid housing, and wherein the Deckenstrahlauslass has an air supply. In particular, the air supply is designed as at least one upstream air inlet nozzle for supplying air into the housing, in particular wherein the Deckenstrahlauslass has exactly one air guide.

In this way, a common provision of the Deckenstrahlauslasses can be provided as an air outlet box. The soil, i. the side facing the space to be ventilated in an operating position of the box is designed as an outlet plate. In the box then the air guide elements of the air guide can be inserted. In this case, the rectangular outer contour of the four air guide elements can be adapted to the outer contour of the cuboid housing, that the air guide elements can be easily inserted. In this way, a cost-effective production of Luftleitanordnung and a simple installation of Deckenstrahlauslasses.

In a further embodiment of the Deckenstrahlauslasses can be provided that the outlet plate has a plurality of outlet openings, each air duct is associated with more than one outlet opening. In particular, it can be provided that the air flowing out of the respective air duct passes through more than one outlet opening. In the case of a plurality of outlet plates, which are respectively arranged downstream of an air guide arrangement, this can apply correspondingly for each outlet plate.

The outlet openings must therefore not be formed in direct association with the air guide arrangement. In particular, the outlet openings can be arbitrary be arranged so that a plurality of outlet openings may be associated with an air duct. An outlet opening can also be assigned to a plurality of air ducts. The condition of a fixed assignment and formation of outlet openings to air ducts is therefore no longer required and the outlet openings can be designed freely.

In a further embodiment of the Deckenstrahlauslasses can be provided that corresponds to an outer contour of a cross-sectional surface of the air guide in a plane parallel to the outlet plate an outer contour of the outlet plate. In particular, the outer contour of the outlet plate can be rectangular and / or square. In the case of several Luftleitanordnungen this applies accordingly for each air deflector.

In this way, the air guide elements of the air guide assembly can be easily placed on the outlet plate and provide an air outlet stream over the entire surface area of the outlet plate.

In a further embodiment of the Deckenstrahlauslasses can be provided that each of the air guide elements is loosely placed on the outlet plate or the corresponding outlet plate. Alternatively, it can also be provided that each of the air guide elements is connected to the outlet plate or the corresponding outlet plate or is connected to a bottom of a Deckenstrahlauslasses designed as Deckenplenum.

A firm connection with the outlet plate is thus not absolutely necessary. The spoiler elements can be loosely interleaved and placed on the outlet plate. As a result, the assembly is much easier.

In a further embodiment of the Deckenstrahlauslasses can be provided that each of the air guide elements is connected to a wall of the cuboid housing.

It can thus also be provided that each of the air guide elements is connected with the use of a cuboid housing with a corresponding wall of the cuboid housing. This can be done for example by riveting or screwing.

Fig. 1

eine isometrische Ansicht einer Ausführungsform einer Luftleitanordnung gemäß der Erfindung,

Fig. 2

eine isometrische Ansicht einer Ausführungsform eines Luftleitelements, Figuren 3a bis 3c dem Strömungsverlauf durch einen Luftleitkanal der Luftleitanordnung in Fig.1, Fig. 4a eine Ausführungsform der Luftleitanordnung gemäß der Erfindung mit vier Luftleitelementen,

Fig. 4b

ein nicht zur Erfindung gehörendes Beispiel einer Luftleitanordnung mit sechs Luftleitelementen,

Fig. 5

eine Ausführungsform eines Deckenstrahlauslasses,

Fig. 6

den Deckenstrahlauslass in Fig. 5 ohne die eingelegte Luftleitanordnung,

Fig. 7

eine weitere Ausführungsform eines Deckenstrahlauslasses,

Fig. 8

ein Blick von unten auf eine Auslassplatte, die im Falle eines Lufteinlasses mit vier Luftleitelementen die Hauptausströmungsrichtungen zeigt,

Figuren 9a und 9b

eine weitere Ausführungsform einer Luftleitanordnung,

Figuren 10a und 10b

ein Luftleitelement der Luftleitanordnung in den Figuren 9a und 9b, und

Fig. 11

ein schematisches Ablaufdiagramm eines Verfahrens zum Leiten von Luft durch eine Luftleitanordnung.

Embodiments of the invention and an example not belonging to the invention are shown in the drawing and are explained in more detail in the following description. Show it:

Fig. 1

an isometric view of an embodiment of an air guide assembly according to the invention,

Fig. 2

an isometric view of an embodiment of an air guide element, FIGS. 3a to 3c the flow path through an air duct of the air guide in Fig.1 . Fig. 4a an embodiment of the air guide arrangement according to the invention with four air guide elements,

Fig. 4b

a not belonging to the invention example of an air guide arrangement with six air guide elements,

Fig. 5

an embodiment of a Deckenstrahlauslasses,

Fig. 6

the Deckenstrahlauslass in Fig. 5 without the inserted air baffle arrangement,

Fig. 7

another embodiment of a Deckenstrahlauslasses,

Fig. 8

a view from below of an outlet plate, which shows the main outflow directions in the case of an air intake with four air guide elements,

FIGS. 9a and 9b

a further embodiment of an air guide arrangement,

Figures 10a and 10b

an air guide of the air guide in the FIGS. 9a and 9b , and

Fig. 11

a schematic flow diagram of a method for conducting air through an air guide.

Fig. 1 shows an embodiment of an air guide assembly 10. The air guide assembly 10 has in the illustrated embodiment, four air guide elements 12, 13, 14, 15. A first air guiding element is designated by the reference numeral 12. A second air-guiding element is designated by the reference numeral 13. A third air-guiding element is designated by the reference numeral 14 and a fourth air-guiding element is designated by the reference numeral 15. In principle, as in the embodiments, all air guiding elements 12-15 may be formed with an identical geometric shape.

The air guide arrangement 10 is flowed through by an inflow side 18 to an outflow side 20. In the straight direction from the inflow side to the outflow side, therefore, a main flow direction 22 can be defined. Parallel to this general main flow direction 22 extends a central axis 24 of the air guide. All four air guide elements abut each other at a common point 26 on the central axis 24. In principle, around the central axis 24 around a central region may also be kept free. However, in one illustrated embodiment, the air guiding elements 12-15 abut each other at this point. The air guide elements 12-15 are thus arranged around the central axis 24 around.

The formation of air ducts will be described below with reference to the example of the first air guide 12. This first air guide element 12 is adjacent two air guide elements. On the one hand, these are the fourth air guiding element 15, which is the "adjacent air guiding element" for the first air guiding element 12. Furthermore, this is the second air guide element 13, which is the "further adjacent air guide element" for the air guide element 12. In other words, in the arrangement of the air guide elements 12-15 around the central axis 24 around the next, in a view from the inflow side 18 in the direction of the outflow side 20 arranged counterclockwise air guide the "adjacent air guide". The next clockwise arranged air guide is the "further adjacent air guide".

The first air guide element 12 is arranged overlapping with the fourth air guide element 15, the adjacent air guide element. Furthermore, the air guide element 12 is arranged overlapping with the further adjacent air guide element, the second air guide element 13. The overlap results in particular when viewed in a direction parallel to the central axis 24 or in the direction of the main flow direction 22.

An air duct 28 is formed between the air guide 12 and the adjacent air guide 15. Another air duct 30 is formed between the air guide element 12 and the further adjacent air guide element 13. To form the air guide channel 28, an outflow-side surface of the air guide element 12 and an inlet-side surface of the adjacent air guide element 15 cooperate. An inflow-side surface 36 of the air guide element 12 cooperates with an outflow-side surface of the further adjacent air guide element 13 to form the further air guide channel 30. The inflow-side surfaces 32, 36 of the air guide elements 12-15 extend obliquely to the central axis 24. In the illustrated embodiment, the air guide channels 28, 30 are further limited by side wall portions 52 of the air guide elements 12-15, as will be described in more detail below. In essence, the air guide elements form an air conduction plane 40, which in the in the Fig. 1 shown coordinate system is located substantially in the XY plane and is described by the outer contour of the air guide assembly 10. The air conduction plane 40 is perpendicular to the central axis 24 and Hauptdurchströmungsrichtung 22. In this way it is achieved that all entering from the inflow side 18 in the air guide 10 air must pass through the air ducts 28, 30 and is deflected away from the direction of the central axis 24 in the direction of the air conduction plane 40. The air therefore flows at an acute angle, in particular an angle between 0 ° and 20 ° to the air conduction plane, ie at an angle of 70 ° to 90 ° to the central axis and the main flow direction 22 from the air guide.

The relationships described above apply to each air guide element 12-15 of the air guide arrangement 10. Based on the second air guide element 13, the first air guide element 12 is the "adjacent air guide element" and the third air guide element 14 is the "further adjacent air guide element". Based on the air guide 14 is accordingly the second air guide 13, the "adjacent air guide" and the fourth air guide 15, the "other adjacent air guide". Based on the fourth air guide 15 is accordingly the third air guide 14, the "adjacent air guide" and the first air guide 12, the "other adjacent air guide".

In this way, each air guide is used very effectively for the formation of two air ducts. In this case, each air guide element once the inflow-side wall for the air duct and on the other hand, the outflow side wall of the other air duct ready. All air guide elements 12-15 are thus overlapping each other or arranged undercutting or nested.

The Fig. 2 shows an embodiment of an air guide 12-15 an air guide assembly 10. As already described above, in principle all air guide elements can be formed with identical geometric shape. Each air guide element 12-15 is essentially initially configured by a large plate section which forms with its one side an outflow-side surface of the air guide element 12-15. The opposite side of this plate member accordingly forms the outflow-side surface. This plate element is generally designated 35. An end portion of the plate member may be formed bent. In this case, a continuous bend with a large radius is conceivable. she However, several bends with a very small radius, ie essentially kinks can be provided. In the illustrated embodiments, two bends 42, 44 are provided, which provide an inlet contour of the plate, so that inflowing air along the inlet contour can flow into a narrowing cross-section substantially without jet separation. This serves in particular the improved acoustics of the entire air guide arrangement. Furthermore, the illustrated air guide element has a side wall 46, which runs perpendicular to the extension of the plate 35 in one side of the plate element, which runs at right angles to the inlet contour with the two bends 42 and 44. The extension of the side wall 46 and the first bend and the second bend take place in opposite directions. In particular, the side wall 46 is bent away from the plate member 35 in the outflow direction. The first bend 42 and the second bend 44 are bent in an upstream direction. In particular, the air guide element can be made as a baffle made of a metal sheet. The metal sheet may be made of aluminum, for example. In this way, the illustrated air guide 12-17 can be formed particularly easily by known cold forming methods such as punching and bending.

The FIGS. 3a-3c show by means of the air duct 28 by way of example the flow pattern through an air duct. This can essentially be divided into three sections, namely one in the Fig. 3a shown inflow 48, one in the Fig. 3b shown guide section 58 and one in the Fig. 3c illustrated outflow area 60th

First, the incoming air flows into the inflow area 48. This is formed by the outflow-side surface 34 of the air-guiding element 12 and the inflow-side surface 32 of the adjacent air-guiding element 12 and the inflow-side surface 32 of the adjacent air-guiding element 15. In this there is also a bend 42 of the air guide 12 away from the adjacent air guide 15. In the inflow 48 thus results in a narrowing flow cross-section. This allows above all the inflow of air without flow separation in the inlet region, which improves the acoustic properties. After flowing through the inflow region 48, the air is in a forced in an illustrated embodiment, this is formed by a portion 52 of the side wall 46 of the air guide element 12, an air guide element portion 54, the outflow surface 34 of the air guide element 12 and by a portion 56 of the adjacent air guide element 15, namely a portion of the local inflow-side surface 32 of the adjacent air guide 15.

At the in the Fig. 3a shown position, this flow cross-section 50 is triangular. Just upstream, it is only substantially triangular, since the sections 54 and 56 no longer run in a point due to the bending of the air guide 12 together. Essentially, however, arises as in the Fig. 3b is shown, a guide portion 58 through which the incoming air must pass through and undergoes the desired deflection in this way.

After passing through the guide section 58, the air finally flows out of the air guiding arrangement 10 again in an outflow area 60. The air is then deflected by a deflection angle 62, which may be about 70 ° to about 90 ° with respect to the main flow direction 22. Relative to the air guiding plane 40 described by the air guiding arrangement 10, it lies correspondingly approximately between 0 ° and 20 °. In the in Fig. 3c The view shown is in principle open after flowing through the guide section 58 to the "top", ie in the direction of the second air guide 13 of the outflow region 60 and is limited there by the outflow-side surface 38. This means that air escaping from the outflow area 60 in this direction of the second air guiding element 13 is in principle supplied to the further air duct 30. The air thus exits at an acute angle from the air guide arrangement 10 and can thus be led out at an acute angle from a Deckenstrahlauslass and guided along a ceiling of a space to be ventilated.

The Fig. 4a shows an embodiment of an air guide assembly 10 with four air guide elements 12-15. As can be seen, this results in a rectangular when viewed from the inflow side 18 in the direction of the outflow side 20 or in the illustrated embodiment even square outer contour 64. In the same direction results for each of the air guide elements 12-15 a rectangular outer contour. In the Fig. 4b is a not belonging to the invention "arrangement for six air guide elements 12-15, 16, 17, each identical to the air guide elements 12-15 in the Fig. 4a are formed shown. This results essentially in a hexagonal outer contour 66. In the in the Fig. 4b As shown, a free center is kept free in the region of the central axis 24. Through the free center, air can pass directly from the inflow side 18 to the outflow side 20 without deflection. For example, it can be kept in a targeted manner in order to provide direct air inflow into a space to be ventilated in this direction. In the in the FIG. 4b shown example with six spoiler elements thus result in six Luftleitkanäle. For example, for the air guide element 12, the air guide element 17 would be the adjacent air guide element and the air guide element 13 the further adjacent air guide element. For the air guide element 17, the air guide element 12 would be the further adjacent air guide element and the air guide element 16 the adjacent air guide element, etc. Consequently, a hexagonal outer contour and six air guide channels result.

The Fig. 5 1 shows an embodiment of a ceiling jet outlet 70. The ceiling jet outlet has an air guiding arrangement 10 as described, and further an outlet plate 72, which is arranged downstream of the air guiding arrangement 10 and will be described in more detail below. The outlet plate is formed in particular "thin". A ratio of a smallest diameter of the respective outlet openings of the outlet plate to a thickness of the outlet plate is thus as large as possible. In particular, a smallest diameter of the outlet openings is at least three times as large as the thickness, preferably four times as large, more preferably five times as large, more preferably ten times as large. This ensures that the flow exiting the air guide assembly 10 can flow through the outlet plate 72 without significant deflection. If the outlet plate is designed to be thick relative to the smallest diameter of the outlet openings, the air flowing out of the air-guiding arrangement would again be led straight into the space to be ventilated, which should just be avoided.

In the in Fig. 5 illustrated embodiment, the air guide assembly 10 is disposed in a cuboid housing 80. The four air guide elements 12-15 are loosely nested and placed on the outlet plate 72. Alternatively, each of the air guide elements 12-15 can also be connected to one of the side walls 74 of the cuboid Housing 80 may be connected. The embodiment shown in particular allows a flat design of the cuboid housing. The length (L) and width (B) may be for example about 500 mm. The height (H) can then be about 110 mm, for example. In particular, it can be provided that the height is less than 25%, preferably less than 20%, more preferably less than 15% of the smaller of the length and the width of the cuboid housing 80.

This flat design of the cuboid housing 80 is favored by the design of the air guide assembly 10. Upstream of the air guide assembly 10, two air inlet stubs 76, 78 are provided in the illustrated embodiment, which can be flowed through the on the inflow side 18 air into the cuboid housing 80. The air then passes through the air guide assembly 10 and exits through the outlet plate 72.

The Fig. 6 shows the in the Fig. 5 Ceiling jet outlet shown without the air guide assembly 10. It can be seen that virtually the cuboid housing is formed by the outlet plate 72. In an installed state, this outlet plate 72 points in the direction of the space to be ventilated. The outlet plate 72 has a plurality of outlet openings 82, which are formed in the illustrated embodiment, substantially circular or oval. Basically, however, this is due to the large-area Ausströmungsbereiche 60 in their arrangement and design free. Since the beam deflection is effected by the guide portion 58 of the air guide 12-15, there is no required for the beam deflection interaction between the air guide assembly 10 and the outlet openings 82, so that there are no restrictions on the design of the outlet plate 72 here.

An outer contour of the cuboid housing or the outlet plate 72 is square in the illustrated embodiment. The outer contour is indicated schematically at 81. As a result, the air guiding arrangement 10 can likewise assume such a square outer contour through four interleaved air guiding elements 12-15 and be placed in the cuboidal housing 80 on the outlet plate 72.

The Fig. 7 shows another embodiment of a ceiling jet outlet 70. In this embodiment, the ceiling jet outlet is formed as a ceiling plenum 86. Like elements are identified by like reference numerals and will not be explained again. In the illustrated embodiment, the air guide assembly 10 is also formed of four air guide elements 12-15 and is loosely on the outlet plate 72. An outlet plate 72 may be provided for each air guide assembly 10 and associated therewith. In principle, it is also possible to provide a single outlet plate 72, onto which a plurality of air guiding arrangements 10 are placed or connected. In the case of a single outlet plate 72, it may form a floor of the ceiling plenum 86 or Deckenstrahlauslasses 70 wholly or partially.

The ceiling plenum 86 forms a space 89 above a ceiling 86 '. The floor 86 'of the ceiling plenum 86 may then be the ceiling 86' of a room 89 to be ventilated. The ceiling plenum 86 may form the complete ceiling 86 'of the room 89 or only a portion of the ceiling 86' of the room 89 or multiple ceiling portions 86 'of the room 89. Through the ceiling plenum 86, supply air 87 flows to the air guide elements 12-15 of each air guide assembly 10 of the ceiling plenum 86, is deflected there and passes through the outlet plate 72 and respective outlet plate 72 in the space to be ventilated 89. In the bottom 86 'of the ceiling plenum 86 and in the ceiling 86' of the space 89 is at least one outlet plate 72nd Upstream of the outlet plate 72, the air guiding elements 12 - 15 are loosely laid or mechanically connected to the outlet plate or the bottom 86 'of the ceiling plenum 86.

The Fig. 8 shows a view from below, ie from the outflow side 20 to the outlet plate 72. In the embodiment according to the invention with four air guide elements thus four Hauptabströmungsrichtungen 84 resulting from the outlet plate 72. It follows thus a jet outlet of the illustrated embodiment without core zone along a ceiling of a to be ventilated space. By using four air guide elements 4 main outflow directions 84 can be provided accordingly. Optionally, a free center 68 can be provided along the central axis 24 between the air guiding elements, so that a core zone with direct jet entry into the space to be ventilated can also be provided.

In the FIGS. 9a and 9b schematically another embodiment of an air guide 10 is shown. In this, a shut-off element 88 is provided in each air duct 28, 30. In particular, the shut-off element 88 is provided in the guide section 58. The shut-off element serves to regulate a volume flow through the respective air duct 28, 30. The Fig. 9a shows a view from the direction of the outflow side 20, the Fig. 9b a symmetrical view from the top of the inflow side 18. Basically, actuators 90 may be provided for adjusting the shut-off elements 88. It is not absolutely necessary. The adjustment can also be done manually in another way when mounting the air guide elements 12-15, 16, 17. Of course, in principle, an electrical actuation is conceivable in order to automatically regulate an air flow in each of the main outflow directions 84.

In the Figures 10a and 10b a single air guide is shown at a shut-off 88. In the Fig. 10a For example, the shut-off is arranged in an open position. From this it can then be in the Fig. 10b bring shown closure position in which it completely shuts off a flow through the corresponding air duct. Of course, stepless between positions are conceivable. In the illustrated embodiment, the shut-off element 88 is shown as a pivotable plate, which is pivotally mounted on the side wall 46 of the respective air guide 12-15.

In particular, the shut-off element 88 can be cantilevered in a side wall 74 with its pivot shaft.

The Fig. 11 schematically shows a flow diagram of a method for conducting air in a Deckenstrahlauslass. The method is generally designated 100.

First, in a step 102, an air guiding arrangement is provided. The air guide arrangement has at least three air guide elements, each air guide element having an adjacent air guide element of the at least three air guide elements and a further adjacent air guide element is assigned by the at least three air guide elements, and wherein each air guide is arranged overlapping with the adjacent air guide, so that between the air guide and the adjacent air guide an air duct is formed, and is arranged overlapping with the other adjacent air guide, so that between the air guide and the other adjacent air guide another air duct is formed.

In a step 104, air is now supplied to this air guiding arrangement. The air can be supplied for example by a Deckenplenum or by an air inlet.

In a step 106, this air now flows through the air guide arrangement. As a result, it flows through a number of air ducts, which corresponds to the number of air guide elements. The air guide element forms an air guide channel with an adjacent air guide element and at the same time serves, in cooperation with a further adjacent air guide element, to form a further air guide channel. In this way, the number of air guide elements corresponds to the number of air guide channels. In a step 108, the air always flows through an inflow region between the respective air guide element and the adjacent air guide element. The inflow region is in particular formed with a decreasing cross-section, in particular the cross-section is reduced continuously so as not to cause any jet separations in this inflow region.

In a step 110, the air then flows through a guide section, which in particular forms a triangular flow cross-section through which the air is forced and forced into a desired outflow direction. In a step 112, the air flows out through an outflow region from the air guide arrangement or the respective air guide channel. The same applies to each further air duct, which is formed between the respective air guide elements.

In a step 114, the air is then entrained by an outlet plate of arbitrary geometric configuration arranged downstream of the air guide arrangement one or more outlet openings. The air now flows into the room enclosing an acute angle with the outlet plate, in particular enclosing an angle of 0 ° to 20 ° with the outlet plate, so that it flows against a ceiling of the room and flows along it and calms.

Claims (18)

1. Air-guiding arrangement (10) for a ceiling jet outlet, having at least three air-guiding elements (12, 13, 14, 15), wherein each air-guiding element (12, 13, 14, 15) is assigned one adjacent air-guiding element (12, 13, 14, 15) of the at least three air-guiding elements (12, 13, 14, 15) and one further adjacent air-guiding element (12, 13, 14, 15) of the at least three air-guiding elements (12, 13, 14, 15), and wherein each air-guiding element (12, 13, 14, 15) is arranged so as to overlap the adjacent air-guiding element (12, 13, 14, 15) such that an air-guiding channel (28) is formed between the air-guiding element (12, 13, 14, 15) and the adjacent air-guiding element (15, 12, 13, 14; 17, 12, 13, 14, 15, 16), and is arranged so as to overlap the further adjacent air-guiding element (12, 13, 14, 15) such that a further air-guiding channel (30) is formed between the air-guiding element (12, 13, 14, 15) and the further adjacent air-guiding element (12, 13, 14, 15), characterized in that the air-guiding arrangement has four air-guiding elements (12, 13, 14, 15), and wherein the four air-guiding elements (12, 13, 14, 15) are each arranged at right angles to one another, and wherein each air-guiding element (12, 13, 14, 15) has a rectangular outer contour (47).
2. Air-guiding arrangement according to Claim 1, characterized in that the air-guiding arrangement is intended for guiding air flowing through the air-guiding arrangement from an inflow side (18) in the direction of an outflow side (20), wherein the respective air-guiding channel (28) is formed between an outflow-side surface (34) of the respective air-guiding element (12, 13, 14, 15) and an inflow-side surface (32) of the assigned adjacent air-guiding element (12, 13, 14, 15), and wherein the respective further air-guiding channel (28) is formed between an inflow-side surface (36) of the respective air-guiding element (12, 13, 14, 15) and an outflow-side surface (38) of the assigned further adjacent air-guiding element (12, 13, 14, 15).
3. Air-guiding arrangement according to Claim 1 or 2, characterized in that the four air-guiding elements (12, 13, 14, 15) are arranged about a central axis (24) and form an air-guiding plane (40) which extends substantially perpendicularly to the central axis (24).
4. Air-guiding arrangement according to one of Claims 1 to 3, characterized in that a number of air-guiding channels (28, 30) is equal to four.
5. Air-guiding arrangement according to one of Claims 1 to 4, characterized in that the four air-guiding elements (12, 13, 14, 15) meet at a point (26).
6. Air-guiding arrangement according to one of Claims 1 to 5, characterized in that the air-guiding arrangement (10) is intended for guiding air flowing through the air-guiding arrangement (10) from an inflow side (18) in the direction of an outflow side (20), and each air-guiding element (12, 13, 14, 15), when looking from an inflow side (18) in the direction of an outflow side (20), has the rectangular outer contour (47).
7. Air-guiding arrangement according to one of Claims 1 to 6, characterized in that the air-guiding arrangement (10) has a rectangular outer contour, in particular wherein the air-guiding arrangement (10) has a square outer contour (64).
8. Air-guiding arrangement according to Claim 7, characterized in that the air-guiding arrangement (10) is intended for guiding air flowing through the air-guiding arrangement from an inflow side (18) in the direction of an outflow side (20), and the air-guiding arrangement (10), when looking from an inflow side (18) in the direction of an outflow side (20), has the rectangular or square (64) outer contour.
9. Air-guiding arrangement according to one of Claims 1 to 8, characterized in that each air-guiding element (12, 13, 14, 15) has at least one bend (42, 44) away from the adjacent air-guiding element (12, 13, 14, 15) for the purpose of forming an inflow region (48), narrowing in a flow direction of the air, of each air-guiding channel (28).
10. Air-guiding arrangement according to one of Claims 1 to 9, characterized in that each air-guiding element (12, 13, 14, 15) has an identical geometric form.
11. Air-guiding arrangement according to one of Claims 1 to 10, characterized in that the air-guiding channel (28) formed between the respective air-guiding element (12, 13, 14, 15) and the corresponding adjacent air-guiding element (12, 13, 14, 15) is furthermore delimited in an outflow region by the further adjacent air-guiding element (12, 13, 14, 15).
12. Air-guiding arrangement according to one of Claims 1 to 11, characterized in that each air-guiding channel (28) has a guide section (58) with a triangular flow cross section (50), in particular wherein the triangular flow cross section (50) is formed by an outflow-side surface (54) of the respective air-guiding element, an inflow-side surface (56) of the assigned adjacent air-guiding element (12, 13, 14, 15) and a side wall surface (52) of the air-guiding element (12, 13, 14, 15), said side wall surface in particular extending through the triangular flow cross section (50) in a manner parallel to a flow direction.
13. Ceiling jet outlet (70) for an air-handling device, characterized by at least one air-guiding arrangement (10) according to one of Claims 1 to 12, wherein the ceiling jet outlet (70) furthermore has an outlet plate (72) which is arranged downstream of the air-guiding arrangement, in particular wherein the air-guiding elements (12, 13, 14, 15), as viewed in a direction perpendicular to the outlet plate (72), overlap one another.
14. Ceiling jet outlet according to Claim 13, characterized in that the ceiling jet outlet (70) is formed as a ceiling plenum (86), wherein the ceiling jet outlet (70) has a plurality of air-guiding arrangements (10), in particular wherein an outlet plate (72) is arranged downstream of each air-guiding arrangement (10).
15. Ceiling jet outlet according to Claim 13 or 14, characterized in that the ceiling jet outlet (70) has a substantially cuboidal housing (80), wherein the outlet plate (72) is arranged downstream of the air-guiding arrangement (10) and forms a wall of the cuboidal housing (80), and wherein the ceiling jet outlet (70) has an air feeding means (76, 78, 86), and in particular wherein the air feeding means is formed as at least one air inlet connecting piece (76, 78), which is arranged upstream and which serves for feeding air into the housing (80), in particular wherein the ceiling jet outlet (70) has exactly one air-guiding arrangement (10).
16. Ceiling jet outlet according to one of Claims 13 to 15, characterized in that the outlet plate (72), in particular each outlet plate (72), has a plurality of outlet openings (82), wherein each air-guiding channel (28) is assigned more than one outlet opening (82), in particular so that the air which flows out of the respective air-guiding channel (28) flows through more than one outlet opening (82).
17. Ceiling jet outlet according to one of Claims 13 to 16, characterized in that an outer contour (64) of a cross-sectional area of the air-guiding arrangement (10), in particular of each air-guiding arrangement (10), in a plane (40) parallel to the outlet plate (72) corresponds to an outer contour (81) of the outlet plate (72), in particular wherein the outer contour (81) of the outlet plate is rectangular and/or square.
18. Method for guiding air in a ceiling jet outlet, comprising the step of feeding air to an air-guiding arrangement for guiding the air by means of a number of air-guiding channels, wherein the number of air-guiding channels is formed by at least three air-guiding elements, and wherein each air-guiding element (12, 13, 14, 15) is assigned one adjacent air-guiding element (12, 13, 14, 15) of the at least three air-guiding elements (12, 13, 14, 15) and one further adjacent air-guiding element (12, 13, 14, 15) of the at least three air-guiding elements (12, 13, 14, 15), and wherein each air-guiding element (12, 13, 14, 15) is arranged so as to overlap the adjacent air-guiding element (12, 13, 14, 15) such that an air-guiding channel (28) of the number of air-guiding channels is formed between the air-guiding element and the adjacent air-guiding element (12, 13, 14, 15), and is arranged so as to overlap the further adjacent air-guiding element (12, 13, 14, 15) such that a further air-guiding channel (30) of the number of air-guiding channels is formed between the air-guiding element and the further adjacent air-guiding element (12, 13, 14, 15), in particular wherein a number of air-guiding elements (12, 13, 14, 15) is equal to the number of air-guiding channels (28, 30), characterized in that the air-guiding arrangement has four air-guiding elements (12, 13, 14, 15), and wherein the four air-guiding elements (12, 13, 14, 15) are each arranged at right angles to one another, and wherein each air-guiding element (12, 13, 14, 15) has a rectangular outer contour (47).

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