EP0601440B1 - Ventilation outlet - Google Patents

Abstract

In the case of a ventilation outlet for introducing cold and/or warm supply air into a room, having an inlet (1) which adjoins an air conduction system and a housing shell (4) which adjoins said inlet and is provided with a multiplicity of holes (5), the housing shell (4) is to be adjoined by an outlet disc (6) with outlet openings (8) whose clear width can be altered. <IMAGE>

Description

The present invention relates to a source outlet for introducing cold and / or warm supply air into a room with an inlet, which connects to an air duct system, and an adjoining housing shell, which is provided with a multiplicity of holes, an outlet disk on the housing shell Connects outlet openings, the clear width of which can be changed and wherein the outlet disk is assigned a throttle disk, the throttle disk being provided with openings which change the clear width of the outlet openings when the throttle disk is rotated about a common axis with the outlet disk,

Such source outlets are known in many forms and designs. Above all, they serve to prevent supply air from being thrown into a room, as is the case, for example, with swirl outlets or outlets with slits.

Such diffusers differ in that the supply air virtually oozes out through the large number of holes in the housing jacket, and drafts are avoided in any case. Therefore, such source outlets are used for the introduction of cold air in the ceiling area, while they are arranged for the introduction of warm air on the floor.

DE 37 43 579 (A1) shows an outlet, in particular a ceiling outlet for warm and / or cold air, in which the air is fed into an enclosure via an inlet. This housing has a base plate with cutouts for venting the air. The width of these recesses can be changed if necessary.

Furthermore, an air passage is known from EP 0 401 481, which has a perforated jacket. This passage is provided with a bottom, which has closable air passage openings. These air passage openings are optionally opened or closed continuously by a segment disk.

An air outlet for ventilation and / or air conditioning systems is known from DE-OS 26 50 413. This is provided with a cylindrical housing, which has an end wall with air openings at the end. These air openings can be partially or completely closed by means of a shut-off device. In addition, isolated support jet blow-out openings are provided in the edge area, which permanently bring air to the outside.

The present invention has for its object to provide a source outlet, which improves both the introduction of cold air and warm air from the ceiling area.

To achieve this object, perforations are provided at least partially in the throttle disk and / or outlet disk, which are released when the throttle disk is rotated accordingly.

With this configuration, the possibility is created for a source outlet to also introduce warm air into a room from the ceiling. If warm air is to be introduced, it is provided that the outlet openings are completely open at the bottom, so that the warm air can be introduced downwards into the room with a large depth of penetration. This ensures that the room is heated up quickly, which leads to considerable energy savings. In this case there is a combination of a source outlet and a long throw outlet. The total width of the outlet openings in the outlet disc only needs to be part of the total width of the holes in the housing shell, since a special type of arrangement of the outlet openings increases the speed at which warm air enters a room, so that this inlet jet is directed downward as a guide jet serves and the horizontally escaping air rips down. This makes it possible for this special outlet to bring relatively large amounts of air very quickly into the occupied zone when it heats up.

If, on the other hand, only cold air is brought into the room, the outlet opening is closed as far as possible so that the cold air has to swell out through the holes in the casing. This means that the cold air exits essentially horizontally, so that the cold air can be better distributed over the ceiling. This is further improved by the fact that deflection plates or further perforated plates are located within the perforated plate housing jacket cause the entire casing to be evenly charged with air from the inside.

To open and close the outlet openings, a throttle disk is preferably provided within the source outlet, which is also populated with openings. These openings preferably coincide with the outlet openings, and of course both the geometric configuration of these openings and their arrangement can be selected as desired.

In an improved exemplary embodiment, there are perforations in the throttle disk or in the outlet disk, which can be released by a corresponding rotation of the throttle disk. For example, these perforations are provided on a fixed strip of the throttle disc near the openings. This makes it possible to adjust the source outlet so that a certain part of the amount of air can escape downward as source air, so that the total area of the source outlet is actually used for one source air outlet. This has the great advantage that a very large amount of air can be introduced into a room without drafts and without any problems.

However, preferably only a part of the outlet surface of this source outlet should be provided with such perforations. In the present exemplary embodiment, this is the area distant from a center point of the outlet disk. In contrast, direct passages are formed in the area near the center through which air can flow directly downwards. However, due to the reduced diameter of the outlet openings, this occurs with a lower penetration depth. Such a position of the source outlet is selected if cold air is to be introduced into a room faster than with a source outlet, but the introduction should nevertheless take place without draft. The air flow with a lower penetration depth means that Air swelling out of the perforations is quickly introduced into the room, although the perforations in turn create a large number of small induction zones which lead to a mixing of the air.

In order to create such a division between areas with perforations and areas without perforations, it is advisable to arrange the outlet openings in a radiation pattern away from the center just mentioned on the outlet disk.

In a further, improved exemplary embodiment of the invention, the throttle disk forms an insert in the housing jacket together with an annular jacket. This insert is rotatably connected to the outlet disc, and the rotation can be done manually or via a corresponding servomotor. Many possibilities are conceivable here and are intended to be encompassed by the invention.

Vertically extending outlet slots are preferably punched into the ring jacket. However, the ring jacket extends only over a smaller part of the height of the housing jacket with the holes. These outlet slots have the advantage that they impart a swirl and an acceleration to the emerging supply air, through which the supply air flows horizontally out of the outlet at a higher speed. In other words, the supply air, especially cold air, is routed across a larger area approximately horizontally along a ceiling and only then sinks into the room. This is a very significant advantage of the present invention. At the same time, the air that swells out of the housing jacket above the outlet slots cannot sink directly downward, but is carried along by the air that swells out at a higher speed and is guided to the outside.

The overall shape of the source outlet is also of minor importance, it can be round, angular, roman or the like.

The outlet according to the invention can be used in both low and very high rooms, and when used in low rooms it generally serves as a source outlet.

Another advantage of this outlet is that it can be continuously covered from 20% to 60% on the side, so that this outlet can also be attached to round or square columns, walls, etc. The amount of air supplied to the outlet should preferably be controlled by a preliminary shut-off valve, which can be adjusted from below. A known volume flow controller is also possible, as described, for example, in DE-OS 39 17 360.

• Fig. 1 eine Draufsicht von unten her auf einen erfindungsgemäßen Quellauslaß;
• Fig. 2 eine Seitenansicht des Quellauslasses gem. Fig. 1 entlang Linie II - II;
• Fig. 3 eine Seitenansicht eines weiteren Ausführungsbeispiels eines Quellauslasses entlang Linie III-III in Figur 4;
• Fig. 4 eine Unteransicht des Quellauslasses gemäß Figur 3 in Gebrauchslage;
• Fig. 5 eine Unteransicht eines weiteren Ausführungsbeispiels eines Quellauslasses in Gebrauchslage;
• Fig. 6 eine Seitenansicht eines Teils des Quellauslasses gemäß Figur 5.

Further advantages, features and details of the invention result from the following description of preferred exemplary embodiments and from the drawing; this shows in

• Figure 1 is a plan view from below of a source outlet according to the invention.
• Fig. 2 is a side view of the source outlet acc. Fig. 1 along line II - II;
• 3 shows a side view of a further exemplary embodiment of a source outlet along line III-III in FIG. 4;
• 4 shows a bottom view of the source outlet according to FIG. 3 in the position of use;
• 5 shows a bottom view of a further exemplary embodiment of a swelling outlet in the position of use;
• 6 is a side view of part of the source outlet according to FIG. 5.

A source outlet Q according to the invention has gem. Fig. 2 has a funnel-shaped inlet 1 for warm or cold supply air, which passes through the inlet 1 into an interior 2 of the source outlet Q. The funnel-shaped inlet 1 connects, not shown in more detail, to a corresponding air duct system.

The funnel-shaped inlet 1 has an annular collar 3 with which it is placed on a housing jacket 4 of the source outlet Q. This housing jacket 4 is provided with a multiplicity of holes 5. A supply air located in the interior 2 can emerge approximately horizontally through these holes 5. It "swells" from the multitude of Holes 5 out, which gives this outlet the name "source outlet".

At the bottom, the housing jacket 4 or the interior 2 is covered by an outlet disk 6, which in turn is placed on the housing jacket 4 via an annular collar 7. In this outlet disk 6, outlet openings 8 are preferably arranged which, as shown in FIG. 1, run away from a center M of the outlet disk 6 in a star shape. In the present exemplary embodiment, these outlet openings 8 have a rectangular or square shape, but a large number of other geometric shapes are also conceivable.
In the interior 2 of the source outlet Q there is an insert 9 which has an annular jacket 10 and a throttle disk 11. The insert 9 is connected to the outlet disk 6 so that in particular the throttle disk 11 can be rotated about an axis A with respect to the outlet disk 6. In order to enable this rotation, for example, a screw 12 with a lock nut 13 connects the outlet disk 6 to the throttle disk 11. The screw 12 thus sits in the center M of the outlet disk 6. After loosening the screw 12, the insert 9 can be placed in the interior 2 by Axis A can be rotated.

Since the throttle plate 11 is also provided with corresponding openings 14, which correspond approximately to the outlet openings 8 in their width, the clear width of the outlet openings 8 can hereby be adjusted. In addition, part of a remaining strip 15 is preferably provided with perforations 16, from which supply air can also flow out. The distribution of these perforations on the corresponding openings 14 or outlet openings 8 is done as desired.

This configuration has the advantage that in any case a certain part of the air volume is also downward as source air can escape, which means that large amounts of air can be introduced into a room without any draft.

In the present exemplary embodiment, only the outer openings 14 are provided with stationary parts with perforations 16, while the inner openings 14 around the center M have no such strips with perforations. This creates a suitable outflow zone, which means that the supply air only reaches a certain depth. This is of great advantage when cold air is supplied. The cold air exits through the perforations 16 and the small passages 17 near the center M only as source air or air with a low penetration depth.

In the case of hot air, however, the outlet openings 8 are opened as far as possible, so that the air can escape with a very large depth of penetration. At the same time, the strips 15 and the perforations create a large number of small induction zones which immediately mix the inflowing air. This is absolutely desirable in the case of warm air, because it ensures that rooms are heated up very quickly and that the warm air also comes deep into a lounge area. This avoids long heating times and, above all, annoying cold air lakes, which could possibly form in the bottom of a room. The short heating-up times save an enormous amount of energy.

Preferably, the ring jacket 10 should also be provided with outlet slots 18. These outlet slots 18 are preferably stamped into the ring jacket 10 and are formed obliquely, so that a swirl is also given to air which then emerges through the housing jacket 4 or the holes 5. This has the enormous advantage that the swirled air from the outlet slots 18 or the holes 5 is relatively far from in this area Source outlet Q is flung away, so that, for example, cold air is brought very far along a ceiling until it can sink into the room from above. Drafts are avoided in any case. The call air also does not fall directly from the source outlet.

Furthermore, the outlet slots 18 arranged just above the outlet disk 6 have the advantage that the escaping air intercepts the swelling air emerging above the holes 5 and takes them out along a ceiling.

In a further exemplary embodiment of a source outlet Q1 according to the invention in accordance with FIG. Such an outlet is particularly useful if, as shown in FIG. 4, this outlet is set up near a wall 19 or unhooked. Furthermore, the insert 9 is missing from this outlet. The strips 15a are also not provided with perforations.

Stiffening rings 20 can be provided inside the jellyfish outlet Q1. Depending on requirements, it is also possible to design these stiffening rings with a different width b or b1, in which case these stiffening rings 20 also act as deflection plates. It is also possible that an additional perforated plate of different diameters is located inside the stiffening rings 20.

Instead of the outlet disk 6, an outlet can be connected to the housing jacket 4 in a further exemplary embodiment of a swelling outlet Q2 according to FIGS. 5 and 6, as is known from DE-OS 37 43 579. There are side openings 22 in one between the actual outlet disk 6 with the outlet openings 8 and a funnel 21, to which the housing jacket 4 connects Ring 23 is provided, a second ring 24 with corresponding openings 25 being located within this ring 23. When this inner ring 24 is rotated, the side openings 22 can be closed more or less. POSITION NUMBER LIST 1 Inlet 34 A axis 2nd inner space 35 3rd Ring collar 36 b Width of 20 4th Housing jacket 37 5 hole 38 M Focus 6 Exhaust disc 39 7 Ring collar 40 8th Outlet opening 41 9 commitment 42 10th Ring jacket 43 Q Source outlet 11 Throttle plate 44 12th screw 45 13 Lock nut 46 14 opening 47 15 Stripes 48 16 Perforations 49 17th Passage 50 18th Outlet slot 51 19th wall 52 20th Stiffening ring 53 21 funnel 54 22 Side opening 55 23 ring 56 24th ring 57 25th opening 58 26 59 27 60 28 61 29 62 30th 63 31 64 32 65 33 66

Claims (11)

1. Ventilation outlet for introducing cold and/or hot air into a room, said outlet having an inlet (1) which communicates with an air conducting system, and a housing cover (4) which communicates with said system and is provided with a plurality of apertures (5), an outlet disc (6) having outlet apertures (8) and communicating with the housing cover (4), the internal width of which apertures is variable, and a throttle disc (11) being associated with the outlet disc (6), the throttle disc (11) being provided with apertures (14) which vary the internal width of the outlet apertures (8) during the rotation of the throttle disc (11) about a common axis (A) with the outlet disc (6),
   characterised in that
   perforations (16) are provided at least partially in the throttle disc (11) and/or outlet disc (6) and are exposed by an appropriate rotation of the throttle disc (11).
2. Ventilation outlet according to claim 1, characterised in that the perforations (16) are provided around and more remote from a centre (M) of the outlet disc (6), and openings (17) are formed nearer the centre.
3. Ventilation outlet according to claim 1 or 2, characterised in that the outlet apertures (8) are disposed like rays extending away from a centre (M) in the outlet disc (6).
4. Ventilation outlet according to claim 2 or 3, characterised in that the throttle disc (11), together with an annular cover (10), forms an insert (9) in the housing cover (4).
5. Ventilation outlet according to claim 4, characterised in that the annular cover (10) is provided with outlet slots (18).
6. Ventilation outlet according to claim 5, characterised in that the outlet slots (18) extend parallel to the axis (A).
7. Ventilation outlet according to at least one of claims I to 6, characterised in that horizontal reinforcing rings (20) are provided in the housing cover (4a).
8. Ventilation outlet according to claim 7, characterised in that the reinforcing rings (20) are configured as deflection plates having different widths (b, b1).
9. Ventilation outlet according to claim 7 or 8, characterised in that the reinforcing rings (20) surround perforated plates.
10. Ventilation outlet according to at least one of claims 1 to 9, characterised in that a ring (23), having lateral apertures (22), is disposed between housing cover (4) and outlet disc (6).
11. Ventilation outlet according to claim 10, characterised in that an additional rotatable ring (24), having apertures (25), is situated in the ring (23).

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