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EP-4739952-A1 - VENTILATION DEVICE

EP4739952A1EP 4739952 A1EP4739952 A1EP 4739952A1EP-4739952-A1

Abstract

The invention relates to a ventilation device comprising a horizontal floor surface (1), an air dispensing device (2) which is arranged in the horizontal floor surface (1), and an air outlet opening (2.1) which is provided on the air dispensing device (2) and which opens maximally 30 cm above the horizontal floor surface (1), wherein an air flow tube which exits the air outlet opening (2.1) has a main longitudinal axis which is orthogonal to the air outlet opening (2.1), and the main longitudinal axis of the air flow tube is not orthogonal to the horizontal floor surface (1). According to the invention, the main longitudinal axis of the air flow tube is arranged at an angle ranging from 45° to 89° relative to the floor surface (1).

Inventors

  • DR. MATHIS, Paul
  • Rohn, Max
  • DR. SCHAUB, Michael

Assignees

  • Viessmann Holding International GmbH

Dates

Publication Date
20260513
Application Date
20240701

Claims (15)

  1. 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 outlet opening (2.1) exiting air flow tube has a main longitudinal axis orthogonal to the air outlet opening (2.1), wherein the main longitudinal axis of the air flow tube is aligned non-orthogonally to the horizontal floor surface (1), characterized in that the main longitudinal axis of the air flow tube is arranged at an angle between 45° and 89° to the floor surface 1.
  2. 2. Ventilation device according to claim 1, characterized in that the air delivery 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. 3. Ventilation device according to claim 1 or 2, characterized in that in the air outlet opening (2.1) an air separation edge (2.2) is provided.
  4. 4. Ventilation device according to one of claims 1 to 3, characterized in that an edge surrounding the air outlet opening (2.1) is arranged lying in an imaginary plane.
  5. 5. Ventilation device according to one of claims 1 to 4, characterized in 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, wherein the flow influencing element (2.3) is preferably designed to act only on a partial circumference of the air outlet opening (2.1), wherein the flow influencing element (2.3) preferably has a rough surface with a roughness of more than 1 mm.
  6. 6. Ventilation device according to one of claims 1 to 5, characterized in that an air volume flow exiting at the air outlet opening (2.1) is less than 1 m 3 per hour.
  7. 7. Ventilation device according to one of claims 1 to 6, characterized in that each air discharge device (2) has at least two air outlet openings (2.1).
  8. 8. Ventilation device according to one of claims 1 to 7, characterized in that the air outlet opening (2.1) is designed to be adjustable in inclination with respect to the floor surface (1).
  9. 9. Ventilation device according to one of claims 1 to 8, characterized in that the floor surface (1) is formed from a plurality of standardized floor surface elements, wherein preferably the air discharge device (2) is arranged on a floor surface element.
  10. 10. Ventilation device according to one of claims 1 to 9, characterized in that the floor surface (1) is designed as part of a raised floor (1.1).
  11. 11. Ventilation device according to one of claims 1 to 10, characterized in that the air discharge device (2) is connected to a central air supply device via a flexible line (2.4).
  12. 12. Ventilation device according to claim 10 and 11, characterized in that the flexible line (2.4) is arranged within the raised floor (1.1).
  13. 13. Ventilation device according to one of claims 1 to 15, characterized in that a control device is provided for controlling the air delivery device (2), wherein the control device is preferably designed to communicate optionally with a smartwatch and/or a smartphone, wherein the control device is preferably designed to take into account emitted radiant heat optionally from people and/or devices located in its vicinity.
  14. 14. Ventilation device according to one of claims 1 to 13, characterized in that the air discharge device (2) is provided with a preferably electrically operating, decentralized heating device.
  15. 15. Ventilation device according to one of claims 1 to 14, characterized in that an air guiding device is arranged in the area between the air outlet opening (2.1) and the table (3).

Description

ventilation device The invention relates to a ventilation device according to the 5 Preamble of patent claim 1. A ventilation device of the type mentioned above is known from the document KR 101 522 498 Bl (see in particular Figures 6a and 6b). 10 Another ventilation device is known from the document US 4,135,440 A. This 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, whereby an air flow tube emerging from the air outlet opening (see also https : / /de. wikipedia. org/w/ index. php? title=Stromf adenthe- orie& oldid=214725415 ) has a main longitudinal axis that is orthogonal to the air outlet opening. Such ventilation devices are 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_( Bauwe- 25 sen)&oldid= 224725 848). The escaping air simply flows upwards as a flow tube or air flow tube and serves to cool the servers placed in the room. The term "flow tube" used in this application is to be understood as a fluid, in particular air, within an imaginary, thin tube, the outer surface of which is formed by streamlines. The invention is based on the object of improving a ventilation device of the type mentioned at the beginning. In particular, a ventilation device that can be used in a more differentiated manner is to be created. 5 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. 10 According to the invention, it is therefore provided that the main longitudinal axis of the air flow tube is arranged at an angle between 45° and 89° to the floor surface. 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 simple orthogonal manner, as in the prior art mentioned at the beginning, but rather at an angle other than 90°, more precisely at an angle between 45° and 89°. This requirement is particularly advantageous for the ventilation of desk workstations, as will be discussed in more detail below, since an air flow tube flowing against the desk top from below no longer hits the desk top perpendicularly, but at an angle, which means that the air as a whole is deflected much better in a desired direction (and not - as in the prior art mentioned at the beginning according to the document US 4,135,440 A - in all directions), preferably in the direction of the user of the desk. Other advantageous developments of the ventilation device according to the invention emerge from the dependent patent claims. The ventilation device according to the invention including its advantageous further developments according to the dependent patent claims is explained in more detail below with reference to the drawings of two exemplary embodiments. It shows schematically 10 Figure 1 shows a first embodiment with a first air discharge device directed somewhat steeper upwards; and Figure 2 shows a second embodiment with a second air discharge device 15 which is oriented somewhat less steeply upwards. The ventilation device shown in the figures consists, in a known manner, of a horizontal floor surface 1, an air delivery device 2 arranged in the horizontal floor surface 1 and an air outlet opening 2.1, 25 provided on the air delivery 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 Figure 1). The main longitudinal axis of the air flow tube is aligned non-orthogonal to the horizontal floor surface 1. What is essential for the ventilation device according to the invention is that the main longitudinal axis of the air flow tube is arranged at an angle between 45° and 89°, particularly preferably between 60° and 75°, to the floor surface 1. 5 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 standing on the floor surface 1, against which air flows from below from the air outlet opening 2.1, preferably a height-adjustable table 3. The air flows from below towards 10 of the table top and is directed from there to the person at the table (sitting or possibly standing). To further influence the direction of the flow tube, an air separation edge 2.2, which preferably extends only over a partial circumference, is preferably provided in or on the air outlet opening 2.1 (see in particular Fig