Air conditioning cabinet

Abstract

An air conditioning cabinet (1) is provided having an outer container (10), an inner container (20) arranged within the outer container (10), and a steam inlet (50) through a rear wall (14) of the outer container (10), in which a flow barrier (51) is arranged in a region between the rear wall (14) of the outer container (10) and an inner container rear wall (24) in front of the steam inlet (50).

Description

Technical Field

[0001] The invention relates to an air-conditioning cabinet. Background Art

[0002] Air-conditioned cabinets are usually used to store items at a defined temperature and humidity. In order to be able to increase the humidity, steam is usually introduced into the interior of the air-conditioned cabinet via a steam inlet, if necessary.

[0003] The steam inlet is usually arranged centrally between the side walls of the air conditioning cabinet in the bottom region thereof and is arranged through one side in the rear region, i.e. the side opposite the door or doors of the air conditioning cabinet, in an attempt to achieve a uniform distribution of humidity. The supplied steam is then diffused between the inner container and the outer container and enters the interior of the inner container through openings in the walls of the inner container, in particular in its side walls.

[0004] However, practice has shown that in this case, a uniform distribution can only be achieved to a limited extent. Typically, a very humid air flow with steam mist begins to spread in the middle of the air conditioning cabinet from the centrally arranged steam inlet, and only gradually enters the side of the air conditioning cabinet, with the attendant significant possibility of undesirable condensation in the door area. Summary of the invention

[0005] Therefore, the object of the present invention is to provide an air-conditioning cabinet with an improved distribution of the humidity provided through its steam inlet. This object is achieved by an air-conditioning cabinet having the features of the present invention. Advantageous developments of the invention are the subject of the dependent claims.

[0006] The air-conditioning cabinet according to the invention comprises: an outer container, an inner container arranged in the outer container, and a steam inlet through the rear wall of the outer container. Preferably, the steam inlet is supplied with steam from a steam generator assigned to the air-conditioning cabinet, in particular belonging to the air-conditioning cabinet, and the steam inlet is connected to the steam generator via a pipe system.

[0007] It is essential to the invention that a flow barrier is arranged in front of the steam inlet in the area between the rear wall of the outer container and the rear wall of the inner container. The flow barrier is therefore not arranged directly in front of the steam inlet, but, viewed from the direction of the door of the air-conditioning cabinet, is further away from the door than the rear wall of the inner container and closer to the door than the rear wall of the outer container.

[0008] The flow barrier arranged in this area prevents the steam jet from propagating unimpeded substantially in its forward direction into the interior of the air conditioning cabinet and thus onto the door, but first collides with the flow barrier and is deflected by it and / or eddies, thereby significantly improving the mixing of the steam with the air and its distribution in the air.

[0009] Such a flow barrier can be realized particularly easily when it is cuboidal. Then, for example, a plate of a suitable material, for example preferably the same material as the inner container, can be used as the flow barrier. Furthermore, it is very easy to install the cuboidal flow barrier; it can be easily oriented parallel to the rear wall of the outer container, preferably fastened to the bottom of the outer container.

[0010] According to an advantageous embodiment of the invention, it is provided that the height of the flow barrier corresponds to the distance between the bottom of the outer container and the bottom of the inner container; and that the flow barrier is arranged on the bottom of the outer container.

[0011] In this way, even if steam escapes relatively non-directionally from the steam inlet, very humid air due to a high steam content can be effectively prevented from flowing directly in the direction of the door of the air-conditioning cabinet.

[0012] In addition, it is particularly preferred that the air-conditioning cabinet has at least one fan for sucking in air, in particular from the interior of the air-conditioning cabinet. With this fan, air circulation in the interior of the air-conditioning cabinet can be achieved, which promotes the distribution of steam.

[0013] If the climate control cabinet has an evaporator plate, which is arranged in the region between the rear wall of the inner container and the rear wall of the outer container, this can contribute to the targeted adjustment of the humidity in the climate control cabinet.

[0014] In an air conditioning cabinet with a fan and an evaporator plate, it can be advantageous if the evaporator plate is arranged below at least one fan in the area between the rear wall of the inner container and the rear wall of the outer container, and the air sucked in by the at least one fan is guided not only along between the rear wall of the inner container and the evaporator plate, but also along between the evaporator plate and the rear wall of the outer container.

[0015] This results in two air flows, which initially have different humidity levels. The air flow guided in the air channel between the evaporator plate and the rear wall of the outer container is intensively mixed with the steam that hits the flow barrier and generates eddies through the flow barrier, thereby acquiring a relatively high humidity level. This moist air flow is guided laterally on both sides through the flow barrier and under the evaporator plate and thus directly into the side areas of the air conditioning cabinet, from where it enters, in particular through openings in the side walls of the inner container, into the interior of the air conditioning cabinet itself and adjusts the desired humidity.

[0016] In contrast, the air flow guided along the evaporator plate and the rear wall of the inner container in the air channel hardly mixes with the steam, but forms a relatively dry air curtain. In the middle area of ​​the air-conditioning cabinet, this also applies in the area opposite the steam inlet, because this area is shielded from the steam by the flow barrier. Since the moist air flow guided through the open area between the edge of the flow barrier and the side wall of the outer container in the side area of ​​the air-conditioning cabinet has already flowed, the dry air is further guided in the direction of the door, so that the formation of dew at the door is particularly effectively avoided.

[0017] This effect is increased in that the evaporator plate directly adjoins the flow barrier and / or the evaporator plate is aligned with the flow barrier. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be described in detail below based on the accompanying drawings showing embodiments. In the drawings:

[0019] Figure 1 An external view of the air conditioning cabinet is shown;

[0020] Figure 2 A cutaway view of a cross section of the air-conditioning cabinet is shown, the cross section extending along a central plane A of the air-conditioning cabinet perpendicular to the rear wall of the air-conditioning cabinet;

[0021] Figure 3 A view showing a cross section of the air conditioning cabinet, the cross section extending along a plane B extending parallel to the bottom of the air conditioning cabinet, wherein the cross section shows the air conditioning cabinet with the bottom of the inner container removed; and

[0022] Figure 4 A view of a cross section of the air-conditioning cabinet is shown, the cross section extending along a plane C extending parallel to the rear wall of the air-conditioning cabinet, which plane C is located behind the rear wall of the inner container. DETAILED DESCRIPTION

[0023] Figure 1 An external view of the air conditioning cabinet 1 is shown. The air conditioning cabinet 1 is substantially cubic in shape, wherein the outer surface of the cuboid which together forms the outer container 10 is formed by a front wall 13 which can be identified by a door 12 arranged therein, a rear wall 14 opposite the front wall 13, a bottom 15, a top 16, and a left wall surface 17 and a right wall surface 18 of the air conditioning cabinet. Figure 1 Also shown are three section planes A, B and C, which represent the following Figures 2 to 4 Which views are shown.

[0024] The air conditioning cabinet 1 has an inner container 20 in addition to the outer container 10, and the inner container 20 has at least an inner container rear wall 24, an inner container bottom 25 and inner container side walls 27, 28, which are particularly Figure 2 and Figure 3 It can be seen in.

[0025] like Figures 2 to 4 As shown in the schematic diagram of the embodiment, an evaporator plate 30 is arranged between the rear wall 14 of the outer container 10 and the inner container rear wall 24, and is arranged essentially parallel to these walls. The lower edge of the evaporator plate 30 ends approximately at the height of the inner container bottom 25 in this embodiment. In addition, in this embodiment, the evaporator plate 30 protrudes laterally over the inner container side walls 27, 28 respectively.

[0026] Two fans 40 are arranged above the evaporator plate 30, with which an air flow can be generated which is directed essentially in the direction of the bottom 15. Figure 2 The air required for this purpose is preferably at least partially sucked in from the interior of the air-conditioning cabinet through an opening in the inner container rear wall 24 .

[0027] In the vicinity of the bottom 15 of the outer container 10, more precisely in the region between the bottom 15 of the outer container and the bottom 25 of the inner container, a steam inlet 50 is provided in the rear wall 14 of the outer container 10. In front of the steam inlet 50, but spaced apart therefrom, a flow barrier 51, which in this example is formed by a cuboidal plate, is arranged, more precisely in such a way that the flow barrier 51 is aligned with the evaporator plate 30. For this purpose, the thickness of the flow barrier 51 is adapted to the thickness of the evaporator plate 30 and the flow barrier 51 is arranged at the same distance from the rear wall 14 of the outer container 10 as the evaporator plate 30.

[0028] The height of the flow barrier 51 which is directly connected to the evaporator plate 30 in the direction towards the bottom 15 of the outer container 10 corresponds substantially to the distance between the inner container bottom 25 and the bottom 15 of the outer container 10 .

[0029] Especially in Figure 4 As can be seen in FIG, the width of the flow barrier 51 is smaller than the distance between the fans 40 and in particular smaller than the distance between the left wall surface 17 of the outer container 10 and the right wall surface 18 thereof. Therefore, the air flowing between the evaporator plate 30 and the rear wall 14 of the outer container 10 can escape on the right and left sides near the flow barrier 51.

[0030] like Figure 4 As shown, the flow barrier 51 is arranged approximately centrally. However, the flow barrier 51 can also be arranged offset, which would be particularly sensible when the fan 40 generates a swirl in the air flow.

[0031] In particular, according to Figure 2The diagram schematically shows the flow path of the air delivered by the fan 40 into the space between the inner container rear wall 24 and the rear wall 14 of the outer container 10. The air flows downward in the direction of the bottom 15 of the outer container 10 in front of and behind the evaporator plate 30. In particular, in the flow channel between the rear wall 14 of the outer container 10 and the evaporator plate 30, intensive mixing with the steam supplied through the steam inlet 50 occurs, because the supplied steam jet encounters the flow barrier 51 after it enters the space between the inner container rear wall 24 and the rear wall 14 of the outer container 10 and generates eddies. In particular, the flow barrier 51 thus prevents the steam from propagating directly in the direction of the door 12 and thus reduces condensation problems in the door area.

[0032] Another desirable effect of the flow barrier 51 is that the air mixed with the steam is guided essentially laterally through the flow barrier 51. In particular, when this air is to be guided through the openings in the side walls 27, 28 of the inner container 20 into the interior space of the air conditioning cabinet 1 provided for storage, the air flow mixed with the steam is guided in this way relatively directly to where the air flow is to enter.

[0033] Unlike the air flowing along the rear side of the evaporator plate 30, the air flowing in the flow channel between the inner container rear wall 24 and the evaporator plate 30 hardly interacts with the steam, since direct entry of the steam into this area is blocked by the evaporator plate 30 and the flow barrier 51. As a result, a layer of dry air is generated, especially in the central area, which is conveyed in the direction of the door 12 and reliably prevents condensation on the door 12.

[0034] Description of reference numerals:

[0035] 1 Air conditioning cabinet

[0036] 10 Outer container

[0037] 12 doors

[0038] 13 Anterior wall

[0039] 14 Back wall

[0040] 15 Bottom

[0041] 16 Top

[0042] 17 left wall surface

[0043] 18 Right wall surface

[0044] 20 Inner Container

[0045] 24 Rear wall of inner container

[0046] 25 Bottom of container

[0047] 27, 28 Inner container side wall

[0048] 30 Evaporator plate

[0049] 40 Fan

[0050] 50 Steam inlet

[0051] 51 Flow Barrier

[0052] A, B, C cutting planes

Claims

1. An air conditioning cabinet (1), comprising: an outer container (10), an inner container (20) arranged in the outer container (10), and a steam inlet (50) passing through a rear wall (14) of the outer container (10), characterized in that: A flow barrier (51) is arranged in front of the steam inlet (50) in the area between the rear wall (14) of the outer container (10) and the inner container rear wall (24).

2. The air conditioning cabinet (1) according to claim 1, characterized in that: The flow barrier is cubic in shape.

3. The air conditioning cabinet (1) according to claim 1 or 2, characterized in that: The height of the flow barrier (51) corresponds to the distance between the bottom (15) of the outer container (10) and the bottom (25) of the inner container; and the flow barrier (51) is arranged on the bottom (15) of the outer container.

4. The air conditioning cabinet (1) according to any one of claims 1 to 3, characterized in that: The air-conditioning cabinet (1) has at least one fan (40) for sucking in air, in particular sucking in air from the interior space of the air-conditioning cabinet (2).

5. The air conditioning cabinet (1) according to any one of claims 1 to 4, characterized in that: The air conditioning cabinet has an evaporator plate (30) which is arranged in the region between the inner container rear wall (24) and the rear wall (14) of the outer container (10).

6. The air conditioning cabinet (1) according to claims 4 and 5, characterized in that: The evaporator plate (30) is arranged below the at least one fan (40) in the area between the inner container rear wall (24) and the rear wall (14) of the outer container (10); and the air sucked in by the at least one fan (40) is guided not only along between the inner container rear wall (24) and the evaporator plate (30), but also along between the evaporator plate (30) and the rear wall (14) of the outer container (10).

7. The air conditioning cabinet (1) according to any one of claims 5 or 6, characterized in that: The evaporator plate (30) directly adjoins the flow barrier (51).

8. The air conditioning cabinet (1) according to any one of claims 5 to 7, characterized in that: The evaporator plate (30) is aligned with the flow barrier (51).

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