WO2009156058A1

WO2009156058A1 - Air outlet

Info

Publication number: WO2009156058A1
Application number: PCT/EP2009/004152
Authority: WO
Inventors: Georg Pfeiffer
Original assignee: Pluggit International B.V.
Priority date: 2008-06-27
Filing date: 2009-06-10
Publication date: 2009-12-30
Also published as: EP2288855B1; ES2661891T3; EP2288855A1; PL2288855T3; DE102008030111A1

Abstract

The invention relates to an air outlet for a ventilation system, comprising a base plate (2), in which a channel (3) ends, and a cover element (5) that can be attached to the base plate (2) and comprises at least one outlet opening (4), wherein guide rails (7, 11) are provided in the channel (3), in the base plate (2) and/or in the cover element (5) for receiving at least one conductor and/or closure element (8, 10). The invention further relates to a ventilation system therefor.

Description

air outlet

The invention relates to an air outlet, in particular for a ventilation system, with a base plate into which a channel opens, and with a cover element which can be fastened to the base plate and which has at least one outlet opening. Furthermore, the invention relates to a ventilation system with such an air outlet.

Such air outlets are known from the prior art. Thus, EP 0 535 550 B1 describes an air outlet with a channel piece, which opens into a one-piece base plate in which an outlet opening is provided. In the outlet opening an insert is arranged, which deflects the air flowing through the channel piece air so that a Coanda effect can be achieved, d. H. that the air flow following the curvature of the insert following along a wall or ceiling surface, in which the air outlet is inserted, along. A similar air outlet is also known from EP 1 240 465 B1.

In the known air outlets the lack of adjustability in the practical application is disadvantageous. This makes it difficult to adjust or subsequently change the direction and amount of outflowing air.

In contrast, the object of the present invention is to provide an air outlet of the type described in the introduction, which is distinguished by a particularly simple construction and high variability.

According to the invention, this object is essentially achieved in that, with an air outlet in the channel, in the base plate and / or in the covering element, guide rails are provided for accommodating at least one guide and / or are provided closing element. By guiding or closing elements, the air flow emerging from the air outlet can be deflected in a defined manner and directed into the space, or areas of the air flow can be dimmed. The air outlet according to the invention is thus individually adaptable to different conditions of use by providing different guide and / or closure elements.

The guide rails provided in the channel, in the base plate and / or in the cover member may be referred to as projecting profiles, i. as ribs, webs or the like., and / or depressions, for example as grooves or the like. Be formed. The guide rails must guide or record the guide and / or closure elements only partially. In this case, the guide rails according to the invention are understood to mean any element which is suitable and designed for fixing guide elements and / or closure elements within the air outlet or for movably supporting them.

According to a preferred embodiment of the invention guide rails for receiving at least one at least partially curved directional lamella are provided as a guide element in the channel. Thus, different directional slats can be inserted into corresponding guide rails preferably in the channel to allow an individual adjustment of the air outlet. In this case, it is preferred if a plurality of guide rails extending in the longitudinal direction of the channel are arranged next to one another in the channel, so that the directional fins can be arranged in different positions within the channel.

In a further development of this inventive concept, it is provided that a curved section of the directional lamella ends in the vicinity of the outlet opening in order to produce a Coanda effect. In other words, the directional fins preferably extend in the region facing away from the outlet opening of the channel initially approximately parallel to one another, ie in the longitudinal direction of the channel, and are curved in the region facing the outlet opening outwards or bent so that an outlet region which is widened in relation to the channel is formed. In this way, an outlet geometry can be generated, which generates correspondingly wide and thin ventilation flows which, with the aid of the Coanda effect, permit large penetration depths of the air flow and large surface coverages in the space to be supplied. The air flow emerging from the air outlet is thus not directed perpendicular to the wall or ceiling surface in which the air outlet is arranged, but essentially parallel to this surface and gradually discharged into the room.

According to a further embodiment of the invention, guide rails are provided in the channel or on the base plate for receiving at least one locking element which can be displaced essentially transversely to the channel. It is preferred if a plurality of independently adjustable closure elements are provided. These closure elements or shutter curtains, which are preferably displaceable at any time and also from outside and are arranged perpendicularly to the air flow in the channel, allow the concentration of the air flow to be determined in certain outlet areas. Thus, the slidable on rails perpendicular to the air flow closure elements control the air currents in the desired space regions.

In order to align the supply air flow emerging from the air outlet according to the invention parallel to the Coanda surface, ie the wall or ceiling surface into which the air outlet is integrated, according to a preferred embodiment of the invention the outlet opening is assigned to homogenization lamellae. These generate as laminar a flow of air as possible regardless of the size and geometry of the outlet opening. The homogenizing lamellae also make it possible to dispense with conventional slot outlets, which Because of the increased air resistance and the increased space requirements are perceived as disadvantageous.

A particularly preferred embodiment of the invention, both from an aesthetic point of view and from fluidic considerations, provides that slidable closure elements are provided on the side of the homogenization slats facing the channel. Thus, the closure elements are only visible indirectly through the homogenization lamellae and the air flowing past the closure elements can be formed by the homogenization lamellae into a laminar air flow without the closure elements hindering this laminar flow.

According to a particularly preferred embodiment of the invention, the channel is provided with a flat cross section at least in one of the outlet opening facing away from the connection area. This flat cross-section may for example be oval or rounded rectangular, wherein in the flow direction of the air, the width of the channel is greater than its height. Thus, the air outlet according to the invention is also suitable for use in ventilation systems with flat lines, which offer significant advantages especially in the retrofitting of buildings with ventilation systems. At the same time, the flat configuration of the connection region of the channel has a positive effect on the splittability of the air flow into laminar partial flows.

The object underlying the invention is further achieved with a ventilation system in which at least one air outlet of the type described above is integrated. In this case, the ventilation system is provided with a plurality of channels for loading and / or venting of rooms of a building, wherein one or more of the channels Qeweils) is designed as an annular channel with two flow-parallel-connected sub-channels. Since this is for the loading and unloading tion required volume flow can be divided into the two parallel sub-channels of the annular channel, each of these sub-channels can be configured with a comparatively small cross-section, so that these lines (sub-channels) can save space in the corner or edge, for example, between the wall and ceiling. In addition, an optimal distribution of fresh air on different rooms of an apartment or part of a large apartment in multi-storey housing construction is ensured. It is particularly advantageous that the assembly can be carried out in the inhabited state due to the low structural complexity, since the relatively small lines or sub-channels need not be laid consuming in the wall. The (ring) channels according to the invention are preferably made of closed pipes and corresponding fittings for plug connection modular, that is without a over the entire length extending channel opening.

According to a particularly preferred embodiment of the invention, at least one of the channels is designed as an annular channel, that between two air distribution points, that is, for example, between a ventilation device and a control distribution element or a connecting element, to be conveyed air stream can be divided into two partial streams, by two parallel connected sections of the annular channel are durchleitbar. In other words, the air flow to be conveyed through a duct is divided into two partial flows, conducted in these two partial flows, for example below the ceiling, and brought together again in the second air distribution point.

It is preferred if a plurality of annular channels are provided, which are each assigned to different rooms of a building. It is particularly preferred if in each of the rooms of the building to be vented or vented, at least one annular channel is arranged, which is in flow communication with one or more of the annular channels of the other rooms. For this purpose, a central space, for example, the hallway or the corridor of a dwelling, be provided with an annular channel, which is designed as a Verteilerringkanal and has at least three air distribution points. Thus, fresh air can be forwarded, for example from a supply room via a ring channel in the Verteilerringkanal in the hallway or the like., From which are connected via further air distribution points ring channels in the adjoining the hallway rooms. To supply an apartment or a building with fresh air and dissipate used air, a supply room is provided, in which a ventilation device is arranged, which is connected to at least one supply air line and / or an exhaust duct or with the environment as fresh air source and Abluftsenke communicates. This ventilation unit forms a first air distribution point. As a second air distribution point, a connecting element, for example a T-shaped branch piece of the type described above, may be provided for connecting two annular channels. The supply room in which the first annular channel is laid, is expediently a wet room, such as the bathroom, the kitchen or a toilet.

Further air distribution points in the sense of the present invention may also be air inlets or outlets, to each of which a T-shaped branch piece of the type described above can be assigned and which can be integrated into the annular channels in order to extract used air from the rooms or fresh air into to hand these over. For this purpose, the ventilation system according to the invention is preferably modular and consists of a variety of plug-in elements or fittings, such as adapters, sheet and distributor or T-pieces. These elements and fittings can be integrated at a suitable location in the lines of the ring channels in order to make at the respectively optimal location a ventilation or vent. In order to allow venting of some rooms, such as the damp rooms, and a simultaneous ventilation of other rooms, such as living rooms or bedrooms, it is preferred if in the supply room at least one annular channel for supplying fresh air from the ventilation unit and at least one further annular channel for discharging are provided by spent air in the ventilation unit. Depending on the location and layout of the rooms of the building also other rooms can be equipped with a ring channel for the supply of fresh air and a ring channel for the discharge of spent air.

The invention will be explained in more detail using an exemplary embodiment and with reference to the drawing.

They show schematically:

1 is a plan view of an air outlet according to the invention,

2 is a perspective view of the air outlet of Fig. 1,

3 is a partially broken perspective view of the air outlet of FIG. 1 in a first position of the closure elements,

Fig. 4 is a view corresponding to FIG. 3 in a second position of the closure elements, and

Fig. 5 is a view of FIG. 3 in a third position of the closure elements.

The air outlet 1 illustrated in the figures has a base plate 2 and a channel 3 opening into it. In the base plate 2 is an output Laßöffnung 4 defines, through which an air stream supplied through the channel 3 can be discharged. On the base plate 2, a cover 5 can be fastened, which can be adapted in color and shape to the conditions of the room in which the air outlet is mounted.

On its side facing away from the outlet opening 4, the channel 3 has a connection region Θ which has a flat, oval or rounded rectangular cross section. This connection region 6 is suitable for connection to a likewise flat channel of a ventilation system. The longitudinal direction of the channel 3 extends approximately perpendicular to the plane of the base plate 2. Parallel to this longitudinal direction a plurality of guide rails 7 in the form of groove-like depressions are provided in the channel 3.

As can be seen in particular from FIGS. 3 to 5, in each case one directional lameile 8 is inserted into two middle guide rails 7 in the illustrated embodiment. The directional fins 8 are designed as band-shaped wall elements, which extend in the connection region 6 of the channel 3 parallel to its longitudinal direction and are bent in the vicinity of the outlet opening 4 to the outside. Between the two directional fins 8, a flow channel which widens toward the outlet opening thus arises. Further, a flow channel deflected outwards is defined between the walls of the channel 4 and the directional fins 8. The abgewaπdteπ the terminal portion 6 ends of the directional lamellae 8 end approximately in the plane of the base plate 2. According to uπgsgemäß these ends of the directional lamellae 8 can also be slightly offset from the base plate 2 or protrude beyond this. In particular, the ends of the directional fins 8 facing the outlet opening 4 are set back by at most about 10%, preferably less than about 5%, with respect to the plane of the base plate 2 or are arranged protruding beyond this. The design of the curved or curved directional lamellae 8 causes the air outlet 1 to be admitted to the air outlet 1.

REPORTED SHEET (RULE 91) ISA / EP led air substantially parallel to the base plate 2, that is passed along a floor, wall or ceiling surface in a space in which the air outlet 1 is mounted.

The cover element 5 is provided in the region of the outlet opening 4 with homogenizing lamellae 9, which are aligned substantially parallel to one another. These homogenizing lamellae 9 comb the air flow emerging from the air outlet and thus cause a laminar air flow.

Further, 5 slidably guided closure elements 10 are provided in the illustrated embodiment between the base plate 2 and the cover. In this case, a gap-like gap between the base plate 2 and the cover 5 forms guide rails 11 for receiving the closure elements 10. About peg-like projections which are provided on the side facing away from the channel 3 of the closure elements 10, they can in the guide rails 11 transversely to the Longitudinal direction of the channel 3, ie approximately parallel to the base plate 2, to be moved. In FIG. 3, a position of the closure elements 10 is shown, in which the flow channel formed between the two directional lamellae 8 is closed by the closure elements 10. In contrast, a position of the closure elements 10 is shown in Fig. 4, in which they are positioned laterally adjacent to the directional lamellae 8. In FIG. 5, the directional fins 8 are each moved maximally to the side, so that substantially the complete outlet opening 4 is available for the airflow.

Notwithstanding the illustrated embodiment, in the air outlet 1 according to the invention, individual or all of the illustrated directional fins 8 and / or closure elements 10 can be omitted and / or replaced by additional, if necessary, also differently designed directional slats or closure elements are replaced.

The air outlet shown in the figures is particularly suitable for discharging an air flow into a room. Alternatively, however, it is also possible to use the air outlet 1 as an air inlet, for example, to extract exhaust air from a room. The suitability of the air outlet 1 for extracting exhaust air may possibly be supported by modifications with regard to the formation of the directional lamellae 8, the closure elements 10 and / or the homogenization lamellae 9.

In the illustrated embodiment, the directional fins 8 are arranged to separate the Coanda outlet cross section orthogonal to the Coanda surface defined by the base plate 2 into sections. In comparison to known and short Ausströmlamellen (homogenization lamellae) orthogonal to the Coanda surface arranged directional fins are designed and dimensioned in the air flow direction that they calm the flow and produce a homogeneous, turbulence-free and directed air flow. Here, the Coanda effect is also used by the directional lamellae in the sense that they themselves represent a Coanda surface, which follows the flow of air.

Claims

Claims:

An air outlet for a ventilation system having a base plate (2) into which a channel (3) opens, and with a cover element (5) which can be fastened to the base plate (2) and which has at least one outlet opening (4), wherein in the channel (3), in the base plate (2) and / or in the cover (5) guide rails (7, 11) for receiving at least one guide and / or Verschlussele- element (8, 10) are provided.

2. Air outlet according to claim 1, characterized in that in the channel (3) guide rails (7) for receiving at least one at least partially bent directional lamella (8) are provided as a guide element.

An air outlet according to claim 2, characterized in that a bent portion of the directional fin (8) terminates in the vicinity of the outlet opening (4) to produce a Coanda effect.

4. Air outlet according to claim 1 or 2, characterized in that in the channel (3) in the base plate (2) and / or in the cover (5) guide rails (11) for receiving at least one substantially transversely to the channel (3 ) slidable closure element (10) are provided.

5. Air outlet according to claim 4, characterized in that a plurality of independently adjustable closure elements (10) are provided.

6. Air outlet according to one of the preceding claims, characterized in that the outlet opening (4) are associated with homogenization lamellae (9).

7. Air outlet according to claim 6, characterized in that on the said channel (3) facing side of the homogenizing slats (9) slidable closure elements (10) are provided.

8. Air outlet according to one of the preceding claims, characterized in that the channel (3) at least in one of the outlet opening (4) facing away from connection area (6) has a flat, in particular an oval or rounded rectangular cross-section.

9. ventilation system with multiple channels for loading and / or ventilation of rooms of a building, wherein at least one, in particular several, the

Channels as an annular channel with two flow-parallel connected sub-channels is formed, and wherein in at least one of the channels an air outlet (1) is provided according to one of the preceding claims.

10. Ventilation system, in particular according to claim 9, wherein in a supply space at least a first and a second air distribution point and at least one channel connecting them are provided, and in a further space at least a second channel is provided with the second air distribution point and possibly one another air distribution point is flow-connected, characterized in that at least one, in particular a plurality, of the channels is designed as an annular channel, that an air stream to be conveyed between two air distribution points can be divided into two partial streams, which pass through two parallel-connected sections of the annular channel. bar, wherein at least one of the air distribution points an air outlet (1) is assigned according to one of the preceding claims.