EP2299211A2 - Device for storing temperature and/or humidity-dependant agents - Google Patents

Abstract

The device (1) has a refrigerator (3) provided with a cabinet part (2) that comprises two side walls (5, 6), where the sidewalls limit interior of the cabinet part. A cooling air supply channel and a cooling air removal channel are formed in the sidewalls, respectively. The supply and removal channels are connected with the interior by openings in the side walls, and the refrigerator comprises a blower (32) such that cooling airflow is generated by the interior. A door (9) i.e. glass door, is provided in the cabinet part, and an evaporator (31) is arranged together with the blower.

Description

The invention relates to a device for the storage of temperature- and / or moisture-dependent drugs chemical, biochemical or physical nature, in particular drugs, pharmaceuticals, laboratory substances and the like., According to the preamble of claim 1. Furthermore, the invention relates to a bearing device according to the preamble of Claim 16.

Such storage devices or refrigerators are known in the prior art. Usually, in these refrigerators, the cooling unit is arranged in the lower region of the cabinet part and coupled to an evaporator in the rear wall. From such refrigerators, various variants are known in which the interior is accessible via a large door.

A disadvantage is often considered in these refrigerators that they are particularly difficult to maintain, because the refrigerator is usually installed in a wall unit and then the cooling unit only cumbersome and possibly only after removal of the entire refrigerator is accessible. To do this, the entire contents of the refrigerator must be emptied, the contents temporarily temporarily stored in a cool place and then returned after replacement. The service, conversion, exchange and the like. Is therefore associated with a considerable effort with corresponding costs.

Furthermore, in the case of a changeover of the refrigerator or a required adaptation to changed, in particular legal, framework conditions, a complete replacement of the refrigerator is required, e.g. to meet new and stricter temperature specifications and temperature fluctuation specifications.

Finally, the air movement is controllable neither in their flow behavior nor in relation to their moisture content and optimally adapted to the different cooling conditions of different storage units.

Against this background, the object of the invention is to show a device according to the preamble of claims 1 and 16, which is optimally adapted to the storage conditions of the storage units with respect to their cooling air generation and control and the air properties and is easier to clean and maintain. Furthermore, it should be adaptable in a cost-saving manner and quickly to changing conditions, in particular with regard to the cooling capacity. Finally, the device should ensure a maximized relation of the usable area or the usable volume to conventional devices of the generic type.

This object is initially achieved by a device having the features of patent claim 1. Advantageous developments of this device are the subject of claims 2-15.

An alternative solution to the problem consists in a device having the features of claim 16.

The device according to the invention comprises a cabinet part with two opposite, an interior bounding side walls and a refrigeration unit. According to the invention, a cooling air supply channel is formed in the first side wall and a cooling air discharge channel in the second side wall, wherein the cooling air supply channel and the cooling air discharge channel are connected to the interior through mutually corresponding openings, such that a cooling air flow can be generated through the interior. Furthermore, the cooling unit has a fan for generating the cooling air flow through the interior.

The inventive design a refrigerator is shown, which has a particularly uniform temperature distribution in the interior and in which the temperature fluctuations due to an opening of the interior is reduced to a minimum. In contrast to conventional refrigerators, in which only an evaporator is arranged at the rear and the cold air diffuses diffusely by natural convection in the refrigerator or by means of a fan arranged in the refrigerator, the cooling air is forcibly promoted by the interior in the refrigerator according to the invention. The generated cooling air flow is a cross-flow, in particular a horizontal flow, which is maintained by the fan, even if the refrigerator should be opened briefly. In this way, the "slumping" of the cool air when opening the door of conventional storage devices is reduced. The desired or required interior temperature is quickly reached again after closing the door or a drawer, so that a particularly uniform and temporally constant temperature distribution in the interior of the storage device is ensured.

It is particularly advantageous if the side walls are foamed with insulating foam and lined with a plate on the sides facing the interior. This makes it possible to produce the side walls particularly efficiently and to provide a smooth inner surface that can be easily cleaned by wiping with a damp cloth

Conveniently, the cooling air supply channel and / or the cooling air discharge channel are formed as a recess in the Isoller foam Further development allows an even more rational production of the side walls, because this indentation can already be provided in the form of the side wall, which is later foamed with the Isollerschaum.

The plate advantageously has a plurality of flow openings for the cooling air and may be formed, for example, by a perforated plate. Perforated sheets are provided with many openings arranged at regular intervals and are available as standard parts in the trade.

The flow openings of the plate may e.g. be closed by slide elements, flaps or the like .. By closing the openings of the plate or the perforated plate, the cooling air flow through the interior can be advantageously influenced. For example, if drawers are installed in the refrigerator, they usually have side walls. It is unfavorable when the cooling air, after exiting the cooling air supply duct, bounces directly against a side wall of a drawer. It is better if the cooling air is blown directly into a slot between two drawers and in this way can reach the opposite side, without having to overcome major flow obstacles. In this way, the refrigerated goods, which are in the drawers, tempered by the sweeping over them cooling air and thereby cooled by an adjustable slow cooling air movement and consequently falling cold air

In order to ensure that the cooling air flows through the interior at the same speed at all altitudes, the openings in the lower part of the cabinet should be larger or there should be more openings. In practice, especially for setting the production according to requirements, is often Windmeter placed at various positions in the interior, so that the openings in the side walls can be carried out selectively or opened or closed according to the measured flow velocities.

• Regelung der Drehzahl des Lüfters;
• Bei der Fertigung festgelegte Öffnungsgröße oder Anzahl der Öffnungen:

In this way, the cooling of the stored goods can advantageously be influenced by the following measures:

• Control of the speed of the fan;
• Opening size or number of openings specified during manufacture:

By dynamic change of the opening cross-sections by means of suitable closure elements,

According to another embodiment of the invention, the cooling unit is arranged on the cabinet part and connected to the cooling air supply duct and the cooling air discharge duct cooling air. The arrangement of the cooling unit as an independent component on the outside of the cabinet part makes it possible to arrange the same interchangeable and easily accessible from the outside, so that the refrigerator is easier to repair or adjust to a new standard.

Preferably, the cooling unit is designed as a separate unit and attached to the cabinet part, preferably on the cabinet part. With this design, the cooling unit is replaceable very quickly and can be removed in case of repair with a few simple steps. Further, if greater power is required, the refrigeration unit can be replaced with a more powerful unit. The arrangement of the cooling unit on the cabinet part allows to use the interior of the cabinet part to the bottom. In this way, the achievable for a person without aids volume of the interior can be maximized. The lower part, in which conventionally the cooling unit is arranged, can thus now also be used for the storage of medicaments.

It is particularly advantageous if the refrigeration unit is fastened to the cabinet part with tension locks. Due to the clamps, the cooling unit can be easily separated from the cabinet part. An exchange of the cooling unit is therefore feasible during operation and within a few minutes, so that too during the exchange a uniform temperature distribution is ensured in the interior of the storage device. During the replacement of the cooling unit, the cabinet part can remain in its location, and the storage contents must neither be cleared out nor subsequently admitted again, as with conventional refrigerators.

Conveniently, the cooling unit on an evaporator, which is arranged together with the fan in an insulating housing. By this arrangement, a space-saving design is realized.

In a further advantageous embodiment of the invention, the new device has a device for controlling the relative humidity as well as the air temperature, through which the cooling air flow is passed upstream to the cabinet part, This device may advantageously be formed by a combined air conditioner, which for humidification and the Dehumidification is controllable. The relative humidity of the cooling air flow is in particular 60 to 65%

Conveniently, the means for controlling the relative humidity with the replaceable cooling unit (3) forms a compact unit.

According to a further advantageous embodiment of the device according to the invention it is provided that the cabinet part has an interior device which is mounted in openings in the side walls. The interior may include a plurality of compartments, drawers or the like, which are each attached to a frame, which is then hung over the openings in the side walls. To clean the storage device, the interior can be easily removed, so that the storage device can be cleaned because of the smooth inner walls within a very short time. Because cleaning is so easy, it also increases the likelihood of frequent cleaning. If the interior is omitted, the drawers can also be mounted in lateral hook elements or with attached to the respective drawer Carriers and / or pull-out devices are hung directly into corresponding receptacles of the inner walls.

Each drawer is expediently arranged via a roller or ball mechanism extendable in the interior. The roller or ball mechanism can be designed so that the drawer is completely extendable from the storage device in order to maximize the achievable or usable drawer volume. Furthermore, each drawer is sealed to the outside of the refrigerator in terms of airflow, such that when the drawers are pushed in, the server tank part of the refrigerator is hermetically sealed to the outside. The advantage of the individual sealing of each drawer is that when opening only a single drawer, only a very small loss of cold or a very small amount of warm air entry takes place, since the temperature or the humidity of the cooling air in the other drawers is not affected. The device according to the invention therefore has a very good energy balance.

Between two adjacent drawers one can. Cooling air slot to be provided, the cooling air slot is used to ensure a low-flow circulation of the cooling air through the interior.

The cabinet part may have a door hermetically closing the refrigerator, so that the interior is easily accessible. In this case, it is not necessary that each drawer is airtight sealable. However, it is useful if the front panel of each drawer is enlarged, so that it is adjacent to the next drawer. In this way, it is advantageously prevented that the cooling air can partially escape when the door is open through the intermediate spaces.

The door may be an insulating glass door to see the contents of the storage device even when the door is closed. Furthermore, the Isoller glass door can be illuminated in order to enable recognition of the stored goods even in unfavorable lighting conditions. When the storage device is arranged in a sales room, it is particularly advantageous if the insulating glass door recordings for mounting of advertising materials and / or a label. In this way, the storage device can be used in addition to promotional purposes.

According to the alternative solution of the object, a storage device is proposed which is suitable for the storage of temperature- and / or moisture-dependent active substances of chemical, biochemical or physical nature, in particular medicaments, pharmaceuticals, laboratory substances and the like, and a cabinet part which has a ceiling. and a refrigeration unit. According to the invention the cooling unit is designed as a separate unit and releasably secured on an upper side of the cabinet part, wherein the cooling unit is connected via cooling air ducts in the ceiling of the cabinet part with an interior cooling air-conducting

Thus, a storage device is provided, the cooling unit is particularly easy and quick to replace. During the short exchange, the temperature in the interior of the refrigerator changes only insignificantly. Thus, even with filled storage device replacement of the cooling unit is possible,

Fig. 1-4

eine erfindungsgemäße Lagervorrichtung mit einem dar auf montierten Kühlaggregat in Ansichten von vorne, von der Seite und von oben sowie in einer perspektivischen Ansicht;

Fig. 5-8

verschiedene Ansichten eines Schrankteils der Lagervorrichtung gemäß den Fig. 1-4;

Fig. 9

eine Lagervorrichtung mit eingezeichneter Kühlluftströmung;

Fig. 10

eine Innenansicht der rechten Seitenwand einer Lagervorrichtung;

Fig. 11

eine weitere perspektivische Darstellung der Lagervorrichtung;

Fig. 12

eine Draufsicht auf einen Teil der Oberseite des Schrank teils mit den Öffnungen für den Kühlluftzufuhrkanal und den Kühlluftabfuhrkanal; und

Fig. 13

einen Ausschnitt eines Querschnitts durch den oberen Teil der Lagervorrichtung und das Kühlaggregat, wobei ein das Kühlaggregat umschließendes Gehäuse nur an- gedeutet ist.

The invention will be explained in more detail with reference to embodiments shown in FIGS. Show it:

Fig. 1-4

a storage device according to the invention with a mounted on refrigeration unit in views from the front, from the side and from above and in a perspective view;

Fig. 5-8

different views of a cabinet part of the storage device according to the Fig. 1-4 ;

Fig. 9

a bearing device with indicated cooling air flow;

Fig. 10

an interior view of the right side wall of a storage device;

Fig. 11

a further perspective view of the storage device;

Fig. 12

a plan view of a portion of the top of the cabinet, partly with the openings for the cooling air supply channel and the cooling air discharge channel; and

Fig. 13

a detail of a cross section through the upper part of the bearing device and the cooling unit, wherein a housing enclosing the cooling unit is only indicated.

In the Fig. 1-4 a device 1 according to the invention is shown. The device 1 has a lower cabinet part 2, on the upper side 2a of which a cooling unit 3 designed as a separate unit is arranged. The cooling unit 3 is attached to the cabinet part 2 with tension locks 4. The cabinet part 2 has two opposite side walls 5, 6, a rear wall 7, a bottom 7a, a ceiling 7b and on the front 8 a door 9, which together define an interior space 10. The door 9 is pivotally attached to the right side wall 6 via three hinges 11 located in the image plane on the right side. The door 9 is fixed by a shutter 12 on the left side wall 5. The door 12 is designed as an insulating glass door and has an LED illumination 14, shown schematically only at the upper edge of the door, and schematically illustrated holders 15 for a label and / or advertising medium.

How to particular in Fig. 2 can recognize, 18 vertically extending reinforcing struts 19 are provided on the side walls 6 on the inside, which have keyhole-shaped openings 20, to which an interior device can be fastened. The interior is not shown, but has a frame 22 (FIG. Figure 11 ), on which trays or drawers 24, only a few of which are shown, for example, are fastened. The drawers 24 are mounted extendible in the frame 22 via a roller mechanism known per se. The drawers 24 and compartments are spaced apart by horizontally extending cooling air slots 26, so that the cooling air KL without having to overcome major obstacles, can flow through the Innenraum10. In another embodiment, the side walls may have perforated plates 70 (see FIG. Fig. 10 ).

The cooling unit 3 has a compressor 27 and a compressor 28, which are arranged in the left part. Underneath a condensate collection tray 29 is arranged, in which condensate can accumulate and evaporate. The cooling fluid is passed from the compressor 27 in an insulating housing 30 in the right part of the cooling unit 3, where it is converted into an evaporator 31 in the gaseous state. Resulting condensate is passed through a connecting pipe 31a in the condensate collection tray 29 In this way, the heat flowing through the insulating housing 30 cooling air KL heat is removed. The cooling air KL is then pressed by a fan 32 into a cooling air supply channel 33 ( Fig. 13 ), From the cooling air supply passage 33, the cooling air KL enters through openings 34 in a first side wall 6 in the interior 10 of the storage device 1 a. By corresponding openings 35 in the opposite second side wall 5, the cooling air is then sucked back into a cooling air discharge channel 36 and conveyed back to the evaporator 31. The cooling air channels 33, 36 are each continued in the ceiling 7b.

The channels 33, 36 for the cooling air KL in the foamed with insulating foam 37 side walls 5, 6 are formed by indentations 38 in the insulating foam 37. These indentations 38 are clad on the inside 18 with a plate 39.

In the Fig. 5-8 the cabinet part 2 is shown isolated. It can be seen that in the ceiling 50, two cooling air slots 51, 52 are formed, wherein the outer cooling air slot 51 is formed as an opening for the cooling air supply passage 33, while from the central cooling air slot 52, the back conveyed cooling air KL exits the interior 10 Before the cooling air in enters the cooling air slot, it flows through a combined air conditioner 40, in which the humidity is set to a certain value. To avoid backflow, an air separation plate 83 is provided in the air duct 36.

In Fig. 9 It is shown how the cooling air KL coming from the right side wall 6, at different heights exits through spaced openings 34 and then moves through the interior 10 of the storage device 1. As a result of the heating in the interior 10, the cooling air KL rises in part and is then sucked out of the interior 10 through openings 35 in the left side wall 5.

The plates 39 on the inner sides 18 of the side walls 5, 6 can be designed in particular as perforated plates 70, as in the Fig. 10-11 is shown, wherein the holes 71 of the perforated plates 70 may be round, oval or slit-shaped. Individual holes 71 may be closed by suitable sliding elements, not shown, to control the cooling air flow.

Fig. 12 . 13 In particular, the outlet slot 51 of the air discharge channel 36 and the inlet opening 52 of the cooling air supply channel 33, which are provided in the ceiling 50 of the cabinet part 2, are shown. Both channels 33, 36 are separated by a separating plate 83. The cooling air KL originating from the interior 10 flows along the surface of the evaporator 31 and is then forced into the interior 10 by the fan 32, which is arranged above the inlet opening 52.

For reasons of clarity, it is not shown that the cooling unit 3 is surrounded by a housing 81. The housing 81 has slots 82 to allow air circulation.

reference numeral

1 -

bearing device

2

cabinet member

2a -

Top of 2

3 -

cooling unit

4 -

Lever Release

5 -

Side wall

6

Side wall

7-

rear wall

7a

ground

7b-

blanket

8th -

front

9-

door

10-

inner space

11-

hinge

12-

shutter

13-

Handle

14-

lighting

15

bracket

18-

inside

19 -

reinforcing strut

20

opening

21 -

interior

22 -

Frame, perforated strip

24 -

drawer

25 -

role mechanics

26 -

slot

27 -

compressor

28-

compressor

29-

Condensate tray

30 -

insulating

31 -

Evaporator

31a-

connecting pipe

32 -

Fan

33 -

Cooling air supply channel

34-

opening

35-

opening

36 -

Cooling air discharge channel

37 -

insulating

38 -

indentation

39-

plate

40 -

combined air conditioner

50

blanket

51 -

Cooling air slot / outlet opening

52 -

Cooling air slot / inlet opening

70 -

perforated sheet

71 -

hole

81 -

casing

82 -

slot

83 -

Air baffle

KL -

cooling air

Claims (16)

Device for the storage of temperature- and / or moisture-dependent active substances of a chemical, biochemical or physical nature, in particular medicaments, pharmaceuticals, laboratory substances and the like, comprising: a refrigerator having a cabinet part (2) with two opposite side walls (5, 6) delimiting an interior space (10); and a cooling unit (3), characterized, in that a cooling air supply channel (33) is formed in the first side wall (6) and a cooling air discharge channel (36) is formed in the second side wall (5), the cooling air supply channel (33) and the cooling air discharge channel (36) being formed by mutually corresponding openings (34, 35) in the side walls (5, 6) with the interior (10) are connected such that through the interior (10) a cooling air flow can be generated, and that the cooling unit (3) comprises a fan (32) for generating the cooling air flow through the interior (10) Apparatus according to claim 1, characterized in that the side walls (5, 6) are foamed with insulating foam (37) and on the interior (10) facing sides (18) are covered with a plate (39). Apparatus according to claim 2, characterized in that the cooling air supply channel (33) and / or the Kühlluftabfuhrkanal (36) are formed as a recess (38) in the insulating foam (37). Apparatus according to claim 2 or 3, characterized in that the plate (39) is provided with flow openings (71), in particular of a perforated plate (70) is formed. Apparatus according to claim 4, characterized in that the flow openings (71) of the perforated plate (70) are individually closable, in particular with a slide device, flap means (72) or the like. Device according to one of claims 1 to 5, characterized in that the cooling unit (3) on the cabinet part (2) is arranged and with the cooling air supply channel (33) and with the cooling air discharge channel (36) is connected in cooling air. Apparatus according to claim 6, characterized in that the cooling unit (3) formed as a separate unit and releasably on the cabinet part (2), preferably on the cabinet part (2), is attached. Device according to one of claims 1 to 8, characterized in that the cooling unit (3) comprises an evaporator (31) which is arranged together with the fan (32) in an insulating housing (30). Device according to one of the preceding claims, characterized in that a device for controlling the relative humidity is provided, through which the cooling air flow upstream of the cabinet part (2) is hindurchleitbar. Apparatus according to claim 10, characterized in that the means for controlling the relative humidity of a combined air conditioner (40) is formed, which is controllable for air humidification and for dehumidification Device according to one of the preceding claims, characterized in that the relative humidity of the cooling air flow is in particular 60 to 65%. Device according to one of the preceding claims, characterized in that a device for controlling the relative humidity with the replaceable cooling unit (3) forms a structural unit. Device according to one of claims 1 to 9, characterized in that the cabinet part (2) has an inner device (21) which is mounted in openings (20) in the side walls (5, 6). Apparatus according to claim 13, characterized in that the inner device (21) comprises at least one drawer (24) and that between adjacent drawers (24) is provided a cooling air slot (26). Apparatus according to claim 14, characterized in that each drawer (24) is sealed to the outside of the refrigerator according to air flow, such that when inserted drawers (24) of the cabinet part (2) of the refrigerator is hermetically sealed to the outside. Device, in particular a refrigerator for storing temperature- and / or moisture-dependent active ingredients of chemical, biochemical or physical nature, in particular medicines, pharmaceuticals, laboratory substances and the like, comprising a Srhrankteil (2) having a cover (50), and a cooling unit (3), characterized in that the cooling unit (3) is formed as a separate unit and on a top (2a) of the cabinet part (2) is releasably secured, wherein the cooling unit (3) via cooling air ducts (33, 36) in the ceiling ( 50) of the cabinet part (2) with an interior (10) is connected in a cooling air.

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