ventilation device

Abstract

The invention relates to a ventilation device comprising a horizontal floor surface (1), an air distribution device (2) arranged in the horizontal floor surface (1), and an air outlet opening (2.1) provided on the air distribution device (2) and opening a maximum of 30 cm above the horizontal floor surface (1), wherein an airflow tube exiting from the air outlet opening (2.1) has a main longitudinal axis perpendicular to the air outlet opening (2.1). According to the invention, the main longitudinal axis of the airflow tube is oriented non-orthogonally to the horizontal floor surface (1).

Description

[0001] The invention relates to a ventilation device according to the preamble of patent claim 1.

[0002] A ventilation device of the type mentioned above is known from document US 4,135,440 A. Such a ventilation device consists of a horizontal floor surface, an air discharge device arranged in the horizontal floor surface, and an air outlet opening provided on the air discharge device and opening just above the horizontal floor surface. An air flow tube exiting the air outlet opening (see also https: / / de.wikipedia.org / w / index.php?title=Stromfadentheorie&oldid=214725415) has a main longitudinal axis orthogonal to the air outlet opening. Such ventilation devices are also particularly known, for example, in so-called server rooms, where the air outlet openings are also arranged on a so-called raised floor (see also https: / / de.wikipedia.org / w / index.php?title=Doppelboden_(Bauwesen)&ol-did=224725848). The escaping air simply flows as a flow tube orThe airflow tube is directed upwards and serves to cool the servers installed in the room. The term "flow tube" used in this application refers to a fluid, particularly air, within an imaginary, thin tube whose outer surface is formed by streamlines.

[0003] The invention is based on the object of improving a ventilation device of the type mentioned above. In particular, a ventilation device that can be used in a variety of ways is to be created.

[0004] This object is achieved with a ventilation device of the type mentioned at the outset by the features listed in the characterising part of patent claim 1.

[0005] According to the invention, it is therefore provided that the main longitudinal axis of the air flow tube is aligned non-orthogonally to the horizontal floor surface.

[0006] In other words, the solution according to the invention is characterized in that the main longitudinal axis of the air flow tube no longer flows out of the horizontal floor surface in a simply orthogonal manner, as in the prior art mentioned at the beginning, but rather at an angle other than 90°. This requirement, as will be discussed in more detail below, is particularly advantageous for the ventilation of desk workstations, since an air flow tube flowing against the desk top from below no longer hits the desk top perpendicularly, but at an angle. This means that the air as a whole is deflected much more effectively in a desired direction (and not - as in the prior art mentioned at the beginning - in all directions), preferably towards the desk user.

[0007] Other advantageous developments of the ventilation device according to the invention emerge from the dependent patent claims.

[0008] The ventilation device according to the invention, including its advantageous developments according to the dependent patent claims, is explained in more detail below with reference to the drawings of two exemplary embodiments.

[0009] It shows schematically Fig. 1 shows a first embodiment with a first air discharge device directed somewhat steeper upwards; and Fig. 2 a second embodiment with a second air discharge device oriented somewhat less steeply upwards.

[0010] The ventilation device shown in the figures consists, in a known manner, of a horizontal floor surface 1, an air discharge device 2 arranged in the horizontal floor surface 1 and an air outlet opening 2.1 provided on the air discharge device 2 and opening out a maximum of 30 cm, preferably a maximum of 15 cm, particularly preferably a maximum of 5 cm, above the horizontal floor surface 1, wherein an air flow tube emerging from the air outlet opening 2.1, which is preferably adjustable via corresponding actuators, has a main longitudinal axis orthogonal to the air outlet opening 2.1 (see Fig. 1).

[0011] It is essential for the ventilation device according to the invention that the main longitudinal axis of the air flow tube is non-orthogonal to the horizontal floor surface 1. It is particularly preferred that the main longitudinal axis of the air flow tube be arranged at an angle between 45° and 89°, particularly preferably between 60° and 75°, to the floor surface 1.

[0012] In order to direct the air flow as effectively as possible to a person, it is preferably provided that the air delivery device 2 is assigned a table 3, preferably height-adjustable, standing on the floor surface 1, against which air flows from below from the air outlet opening 2.1. The air flows from below against the tabletop of the table and is directed from there to the person (seated or possibly standing) at the table.

[0013] To further influence the direction of the current tube (see in particular Fig. 2) preferably in or on the air outlet opening 2.1, an air separation edge 2.2 is provided, preferably extending only over a partial circumference. This influences the flow tube itself in its internal flow pattern so that it exits with an internal swirl and (as in Fig. 1) is curved downstream of the air outlet opening 2.1 due to turbulence.

[0014] Furthermore, it is preferably provided that an edge surrounding the air outlet opening 2.1 is arranged lying in an imaginary plane.

[0015] In order to be able to specifically influence the direction of the flow tube already at the air outlet opening 2.1, it is further preferably provided that a flow influencing element 2.3 is arranged within the air discharge device 2 for lateral deflection of the air flow tube after exiting the air discharge device 2, viewed in the direction of flow, in front of the air outlet opening 2.1. Looking at this in a little more detail, in order to be able to specifically slow down the flow tube locally, it is particularly preferably provided that the flow influencing element 2.3 is designed to act only on a partial circumference of the air outlet opening 2.1 or the flow tube. Furthermore, it is also preferably provided that the flow influencing element 2.3 has a rough surface with a roughness of more than 1 mm.

[0016] In order to achieve an energy-saving local fresh air supply (also called personal ventilation), it is furthermore particularly preferred that an air volume flow exiting at the air outlet opening 2.1 is less than 1 m 3 per hour.

[0017] In order to be able to supply two workstations with fresh air at the same time, for example, it is further preferably provided that each air discharge device 2 has at least two air outlet openings 2.1.

[0018] Furthermore, it is preferably provided that the air outlet opening 2.1 is optionally designed to be adjustable in inclination with respect to the floor surface 1, round, in particular circular, and / or to close automatically in the absence of air flow.

[0019] Not specifically illustrated, but preferably provided, is that the floor surface 1 is formed from a plurality of standardized floor surface elements, preferably 60 cm x 60 cm in size. It is further particularly preferred that the air discharge device 2 be arranged on one (such) floor surface element.

[0020] As from Fig. 1, it is further preferably provided that the floor surface 1 is formed as part of a (so-called) raised floor 1.1. Furthermore, it is preferably provided that the air discharge device 2 is connected to a central air supply device (not itself separately shown) via a flexible line 2.4. In combination with the two aforementioned requirements, it is further particularly preferably provided that the flexible line 2.4 is arranged (at least partially) within the raised floor 1.1.

[0021] Furthermore, a control device for controlling the air discharge device 2, in particular for selectively adjusting an air temperature and / or an air flow rate, is particularly preferably provided. This allows the outlet nozzle and thus ultimately, with the control device, in particular the temperature, volume flow, etc., to be individually adjusted.

[0022] Furthermore, it is preferably provided that the control device is designed to communicate with a smartwatch (see https: / / de.wiki-pedia.org / w / index.php?title=Smartwatch&oldid=228916199) and / or a smartphone (see https: / / de.wikipedia.org / w / index.php?title=Smartphone&oldid=230392619), preferably of a user located in the vicinity, and preferably to take the user's needs into account.

[0023] Furthermore, it is preferably provided that the control device is designed to take into account radiant heat emitted optionally by people and / or devices located in its vicinity.

[0024] Furthermore, the air discharge device 2 is preferably provided with a preferably electrically operating, decentralized heating device.

[0025] Finally, it is preferably provided (but not separately shown) that an air guiding device is arranged in the area between the air outlet opening 2.1 and the table 3. List of reference symbols 1 horizontal floor surface 1.1 Raised floor 2 Air discharge device 2.1 Air outlet opening 2.2 Air separation edge 2.3 Flow influencing element 2.4 Management 3 tables QUOTES CONTAINED IN THE DESCRIPTION

[0000] This list of documents submitted by the applicant was generated automatically and is included solely for the convenience of the reader. This list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions. Cited patent literature

[0000] US 4,135,440 A

[0002] Cited non-patent literature

[0000] https: / / de.wikipedia.org / w / index.php?title=Current filament theory& oldid=214725415

[0002] https: / / de.wikipedia.org / w / index.php?title=Doppelboden_(Bauwesen)&ol-did= 224725 848

[0002] https: / / de.wiki-pedia.org / w / index.php?title=Smartwatch&oldid=228916199

[0022] https: / / de.wikipedia.org / w / index.php?title=Smartphone&oldid=230392619

[0022]

Claims

[1] Ventilation device, comprising a horizontal floor surface (1), an air discharge device (2) arranged in the horizontal floor surface (1) and an air outlet opening (2.1) provided on the air discharge device (2) and opening out a maximum of 30 cm above the horizontal floor surface (1), wherein an air flow tube emerging from the air outlet opening (2.1) has a main longitudinal axis orthogonal to the air outlet opening (2.1), characterized by that the main longitudinal axis of the air flow tube is non-orthogonal to the horizontal floor surface (1). [2] Ventilation device according to claim 1, characterized by that the air discharge device (2) is assigned a table (3) standing on the floor surface (1) against which air coming from the air outlet opening (2.1) flows from below. [3] Ventilation device according to claim 1 or 2, characterized by that an air separation edge (2.2) is provided in the air outlet opening (2.1). [4] Ventilation device according to one of claims 1 to 3, characterized by that an edge surrounding the air outlet opening (2.1) is arranged lying in an imaginary plane. [5] Ventilation device according to one of claims 1 to 4, characterized by that a flow influencing element (2.3) is arranged within the air discharge device (2) in front of the air outlet opening (2.1) as seen in the direction of flow. [6] Ventilation device according to claim 5, characterized by that the flow influencing element (2.3) is designed to act only on a partial circumference of the air outlet opening (2.1). [7] Ventilation device according to claim 5 or 6, characterized by that the flow influencing element (2.3) has a rough surface with a roughness of more than 1 mm. [8] Ventilation device according to one of claims 1 to 7, characterized bythat the air volume flow exiting the air outlet opening (2.1) is less than 1 m 3 per hour. [9] Ventilation device according to one of claims 1 to 8, characterized by that each air discharge device (2) has at least two air outlet openings (2.1). [10] Ventilation device according to one of claims 1 to 9, characterized by that the air outlet opening (2.1) is designed to be adjustable in inclination with respect to the floor surface (1). [11] Ventilation device according to one of claims 1 to 10, characterized by that the floor surface (1) is formed from a plurality of standardized floor surface elements. [12] Ventilation device according to claim 11, characterized by that the air discharge device (2) is arranged on a floor surface element. [13] Ventilation device according to one of claims 1 to 12, characterized bythat the floor area (1) is designed as part of a raised floor (1.1). [14] Ventilation device according to one of claims 1 to 13, characterized by that the air discharge device (2) is connected to a central air supply device via a flexible line (2.4). [15] Ventilation device according to claims 13 and 14, characterized by that the flexible cable (2.4) is arranged within the raised floor (1.1). [16] Ventilation device according to one of claims 1 to 15, characterized by that a control device is provided for controlling the air discharge device (2). [17] Ventilation device according to claim 16, characterized by that the control device is designed to communicate with a smartwatch and / or a smartphone. [18] Ventilation device according to claim 16 or 17, characterized bythat the control device is designed to take into account radiant heat emitted either by people and / or devices in its vicinity. [19] Ventilation device according to one of claims 1 to 18, characterized by that the air discharge device (2) is provided with a preferably electrically operated, decentralized heating device. [20] Ventilation device according to one of claims 1 to 19, characterized by that an air guiding device is arranged in the area between the air outlet opening (2.1) and the table (3).

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