EP2887840B1 - Cooling unit arrangement - Google Patents

Description

The FR 2 907 202 A1 shows a kind of cooling rack assembly with insulating elements having side walls and a rear wall and arranged on the rear wall air duct. The insulating elements are aufeinandersetzbar, where they can be used in each case a jacket. The cooling components of a cooling device, inter alia to an evaporator and compressor, are housed in a disposed below the insulating module element.

In the WO 2005/074749 A1 is a cooling rack assembly indicated in side view C-shaped body parts.

Rear wall and cold room side baffles arranged and as wide as their distance. The distance between the air guide walls and the rear wall results from the thickness of the heat exchangers or from fans which generate an air flow along the heat exchangers. The heat exchanger is connected to a central refrigeration unit, if a correspondingly high cooling capacity is required. The connection must be made by a specialist company. In a large number of such refrigerated shelves creates a corresponding installation effort.

In the US 5,440,894 For example, there is shown a refrigerated shelf assembly including a refrigerator having various components, such as an evaporator, condenser, compressor, and the like to provide required refrigerated space in a department store area. The entire refrigerated shelf assembly with the cooler includes different shelves and cabinet units for receiving components of the refrigerator. The entire cooling system results in a considerable installation effort.

Another cooling rack arrangement is in the WO 2012/025240 A2 shown. In this known construction, a plurality of modular refrigerated shelves can be assembled in an arrangement with several refrigerated shelves. Each cooling rack has a cooling rack individual cooling device with evaporator, condenser and compressor, wherein a cooling rack individual cooling device can also be associated with at least two refrigerated shelves. The refrigerated shelves can be connected in parallel or serially via a secondary circuit to a central heat exchanger.

The condenser and a control unit are disposed in the upper portion of the refrigerated shelf while the compressor is disposed in the lower portion thereof. in the Use cases on site are often encountered circumstances that require complex assembly work and complicate the installation.

In the WO 2005/075910 A1 is another cooling rack assembly with modular refrigerated shelves a length of z. B. 1250 mm, wherein the cooling rack modules each have their own refrigeration unit with evaporator, fan (s), expansion valve (s) and control (s). The refrigeration unit of a refrigerated shelf module may be formed as a so-called plug-in refrigeration unit or connected via a corresponding piping with a central refrigeration system, wherein by means of the structure of the refrigerated shelving within the individual cooling rack modules different temperatures or temperature groups or classes should be realized. With this structure z. B. the disadvantage of elongated, a length of more than 3000 mm exhibiting heat exchanger or evaporator in cooling rack assemblies from several cooling cabinet modules are fixed, as in the structure according to the DE 102 19 101 A1 is known. Also, such predetermined regulatory modules can result in problems of localization in the field as a result of different circumstances, which make it difficult to achieve an optimal adaptation to the requirements including efficient energy use.

The present invention has for its object to provide a cooling rack assembly of the type mentioned above, with an adaptation to different local conditions in a simple installation can be achieved.

This object is achieved with the features of claim 1. It is provided that the module racks form with the frame profiles side frame of the shelf modules and the bottom group, the rear wall group and the roof group are mounted with respective trim parts on the side frame that the cooling device comprising at least a compressor, an evaporator, a condenser, connecting means including connecting lines, a fan and a control device with control unit, wherein the shelf assembly is provided with a common along several or all shelf modules arranged in the rear wall group evaporator and the rear wall group, the bottom group and / or the roof group of each shelf module is / are formed in the same way with a receiving device for releasable installation of components of the cooling device.

With these measures, a stable basic structure of the shelf modules with easy installation options for the components of the cooling device and compilation of the shelf modules to the cooling rack assembly of one or more, z. B. two or three shelf modules (so-called two- or three-axis arrangement) received. For example, the complete cooling rack assembly can be preinstalled and then positioned at the relevant location within the building space. As far as provided, a connection to a central heat exchanger of a cooling system can also take place via the connecting means, including connecting lines integrated into the shelf modules or the cooling rack arrangement and provided in the building. Mechanically, the common evaporator can be constructed in one piece or composed of individual evaporator units, which are fluidically connected to one another for the circulation of the refrigerant, preferably to form a compact unit.

An advantageous embodiment of the refrigerated shelf arrangement consists in that only a part of the shelf modules, in particular only one of the shelf modules, is provided with a compressor and / or a control unit. With these measures, a simple building-side installation is achieved with a simple structure, wherein for several shelf modules, in particular only a compressor and a control unit and a condenser are used and, where appropriate, the connection to a central heat exchanger of a cooling system via a forward and return line is correspondingly simple.

An advantageous embodiment for the heat dissipation is that the cooling device is connected via connecting lines to a central heat exchanger.

A configuration which is advantageous for a good function with efficient use of energy and a simple construction is that a vertical intermediate space is formed in the rear wall group between a heat-insulating outer cladding and an inner cover delimiting the cooling space and provided with air passage openings, wherein the vertical interspaces of adjacent shelf modules to complement one another over the entire width of the shelf assembly continuously extending total gap, which is sealed at the lateral ends, and that the evaporator extends in the overall gap.

An advantageous construction further consists in that the evaporator is attached to adjacent vertical profiles and / or on the front side of a flat intermediate partition.

Further advantageous design variants for the construction, assembly and installation consist in that the receiving device of each or only one shelf module with a arranged in the lower region of the rear wall group receiving chamber is equipped for a compressor and with a arranged in the rear wall group or in or on the roof group receiving compartment for the control unit and / or a condenser. In addition to the only one compressor and the only one control unit, other components of the cooling device can also be present in the shelf arrangement.

A further advantage is the measure that the compressor and the control unit are arranged in the same shelf module.

This results in the construction and installation of further advantages in that in the rack assembly for the subset or for all shelf modules also only a condenser is arranged, which is arranged in the same shelf module as the compressor and the control unit.

A stable construction with advantages for assembly and installation is obtained in that the side frames each have a rear vertical profile and a forwardly projecting bottom side lower and a forward projecting roof-side upper horizontal profile that between the upper and lower horizontal profile of the vertical profile spaced a support profile is introduced and that the inner cover is mounted on the front or between the support profiles of the two side frames and the heat-insulating outer lining on the front, the back or between the vertical profiles. In particular, the arrangement of the outer lining on the front results in advantages for the thermal insulation and assembly.

The structure, the installation and the function are also favored by the fact that over the width of several shelves extending evaporator between the vertical profiles and support profiles is arranged. The evaporator can z. B. easily be introduced by simple installation and removal of the support profiles.

Further advantages for the function result from the fact that between the inner cover and the outer lining of each shelf module at least one cooling air flow through the evaporator causing fan, in particular a radial fan, is arranged.

For the air duct, a particularly advantageous embodiment is that one or more laterally juxtaposed fan are arranged above the evaporator. The result is a uniform distribution of air through the gaps between the vertically extending fins of the evaporator without back pressure (as it can occur with fan arranged below) and without the risk of electrical noise or damage from falling down tropics and moisture.

Further advantages for the construction, the assembly and the function are obtained in that the floor assembly is provided on its upper side facing the refrigerator with a bottom cover and from this to form a lower horizontal gap spaced down with a guide plate that the roof group on its bottom facing the cooling space is provided with a bottom cover and spaced upwardly therefrom with an upper cover and / or an intermediate cover to form an upper horizontal gap, and that the lower and the upper horizontal gap with the vertical gap formed between the inner cover and the outer panel is brought into flow communication with the evaporator for a circulating cold air flow, the cold air flow is completed via the front of the shelf modules or the Kühlregalanordnung.

In connection with the cooling function of the cooling rack arrangement, further advantages are achieved in that an outer lower flow channel is formed in the bottom group on the underside of the guide plate by means of a bottom plate arranged under this, that in the roof group between the upper cover and the intermediate cover an outer upper flow channel is formed, that in the rear wall group between the front of the outer panel and an intermediate partition, an outer vertical flow channel is formed, that the outer lower and outer upper flow channel for forming a circulating hot air flow are brought into fluid communication with the outer vertical flow channel, wherein the hot air duct over the front of the shelf modules or the cooling rack assembly is completed.

Fig. 1

drei zu einer Kühlregalanordnung aneinandergereihte Regalmodule (in noch nicht vollständig montiertem Zustand) in perspektivischer Ansicht von vorn, seitlich,

Fig. 2

eine schematische Ansicht dreier Kühlregalanordnungen aus einem Regalmodul, zwei Regalmodule bzw. drei Regalmodule mit schematisch dargestellten Komponenten einer Kühleinrichtung mit einem Anschluss an einen zentralen Wärmetauscher,

Fig. 3

eine perspektivische Ansicht eines Regalmoduls von schräg seitlich vorn in seitlich offener Darstellung,

Fig. 4

eine offene Seitenansicht eines Regalmoduls,

Fig. 5

einen unteren Abschnitt eines Regalmoduls in seitlicher offener Ansicht,

Fig. 6

einen vorderen unteren Eckbereich einer Kühlregalanordnung in perspektivischer Ansicht schräg von vorn, seitlich, oben,

Fig. 7

einen unteren Eckbereich einer Kühlregalanordnung bei weggelassener (unterer) Bodenplatte in perspektivischer Ansicht schräg von unten, vorn, seitlich,

Fig. 8

einen oberen Abschnitt eines Regalmoduls in perspektivischer Ansicht schräg von seitlich, vorn, oben,

Fig. 9A

einen oberen Abschnitt eines Regalmoduls in seitlicher offener Ansicht,

Fig. 9B und 9C

einen oberen bzw. unteren hinteren Eckbereich eines Regalmoduls in perspektivischer Ansicht,

Fig. 10

eine schematische Ansicht eines Regalmoduls in einem Querschnitt von einer Seite und

Fig. 11A bis 11X

verschiedene Darstellungen zu Aufbauschritten eines Regalmoduls.

The invention will be explained in more detail by means of embodiments with reference to the drawings. Show it:

Fig. 1

three shelving modules lined up to form a refrigerated shelving arrangement (not yet fully assembled) in a perspective view from the front, from the side,

Fig. 2

a schematic view of three refrigerated shelving arrangements of a shelf module, two shelf modules or three shelf modules with schematically illustrated components of a cooling device with a connection to a central heat exchanger,

Fig. 3

a perspective view of a shelf module from obliquely laterally in front laterally open representation,

Fig. 4

an open side view of a shelf module,

Fig. 5

a lower section of a shelf module in lateral open view,

Fig. 6

a front lower corner region of a cooling rack arrangement in perspective view obliquely from the front, laterally, above,

Fig. 7

a lower corner region of a refrigerated shelf arrangement with omitted (lower) bottom plate in perspective view obliquely from below, front, side,

Fig. 8

an upper portion of a shelf module in a perspective view obliquely from the side, front, top,

Fig. 9A

an upper section of a shelf module in lateral open view,

Figs. 9B and 9C

an upper or lower rear corner region of a shelf module in a perspective view,

Fig. 10

a schematic view of a shelf module in a cross section from one side and

Figs. 11A to 11X

various representations of construction steps of a shelf module.

Fig.1 shows a three shelf modules 1, 2, 3 assembled to a cooling rack assembly unit, wherein the cooling rack assembly surrounds a front accessible from the refrigerator compartment 4 on the back and above and below and in use, at least laterally, including attached to the two sides of the arrangement corresponding side walls become. The front can be openly accessible or provided with door elements for special applications. In use, 4 shelves are mounted in the refrigerator, on which the refrigerated goods, such as meat products or dairy products or the like. In a sales room, is launched. A single shelf module 1, 2, 3 can be used as a cooling rack, wherein on both sides side walls are mounted and the front can be open or closed with at least one door element.

For keeping the cooling space 4 cool, components of a cooling device 5 (cf. Fig. 2 ), in particular an evaporator 50, 50 ', 50 ", a compressor 51, a condenser 52, an expansion valve arrangement, connecting means 53 including connecting lines 53.1 and a control unit 55.1 of a control device 55 (cf. Fig. 8 ) and further fans 56, 57 for generating or supporting required air streams (see. Fig. 3 ). The condenser 52 can be connected via appropriate connecting lines 53.1 via a secondary circuit to a z. B. located in another room heat exchanger 54 may be connected. If necessary, z. B. a larger cooling rack assembly also include a plurality of similar components of the cooling device 5.

The condenser 52 with corresponding connection means 53 is arranged in a preferred embodiment according to the embodiment shown in or on a roof group 13 in a formed there upper Kühlkomponentenaufnahme 13.30 in the region of an upper cover 13.3 from above or behind easily accessible, while the compressor 51 is preferably in the lower area a rear wall group 12 behind a cooling space 4 to the rear limiting inner cover 12.1 in a (not shown in detail) receiving chamber of a receiving device is arranged. In the middle region of the rear wall group 12, the evaporator 50, 50 ', 50 "is also arranged behind the inner cover 12.1 and mounted with means of the receiving device Fig. 1 As can be seen, the evaporator 50 "extends continuously over all three shelf modules 1, 2, 3, while the compressor 51 and the condenser 52 for all three shelf modules 1, 2, 3 of the shelf assembly together in only one, namely in the embodiment according to Fig. 1 arranged in the right-hand shelf module 1 and to the evaporator 50 "via corresponding connecting lines with the interposition of relevant intermediate links of the cooling device 5, such as expansion valve or throttle, are connected.

In addition to the roof group 13 and rear wall group 12 already mentioned, each shelf module 1, 2, 3 also has a base group 11. This limits with an overhead floor cover 11.1 the refrigerator 4 down and carries on its front with a through air holes, in particular air passage slots, provided Cover grille 11.10 as well as a front cover 11.4 with bumper or decorative strip in the lower front edge area.

An essential part of each shelf module 1, 2, 3 are arranged on each side of the same side frame 10 with a side view C-shaped configuration with a vertical profile 10.1 along the back, a down at this connected and forward projecting lower horizontal section 10.2 and an upper, at the top End section of the vertical profile 10.1 connected, forward projecting upper horizontal profile 10.3, wherein in the illustrated illustration, the lower horizontal profile 10.2 protrudes further forward than the upper horizontal profile 10.3. In further investigations, however, it has been found that an upper horizontal profile 10.3, which is the same length or longer compared to the lower horizontal profile 10.2, may be advantageous in order, e.g. to wear an upper stem with roller blind and a lighting device stable and without deflection. In front of the vertical profile 10.1, a support profile 10.4 is installed at a distance from the latter, between the lower and upper horizontal profiles 10.2, 10.3. The lower horizontal profile 10.2 is supported on feet 60, 61 with leveling possibility. The two side frames 10 of each shelf module 1, 2, 3 bear by means of their lower horizontal profiles 10.2 the bottom group 11, by means of their vertical profiles 10.1 and 10.4 support the rear wall group 12 and by means of their upper horizontal profiles 10.3 the roof group 13 and give a stable structure with simple assembly steps. In addition, they ensure a stable juxtaposition of several shelf modules 1, 2, 3 to the cooling rack assembly, the refrigerated rack assembly is transportable as a stable unit by means of a lifting device or vehicle.

As Fig. 2 shows, an advantageous embodiment of a refrigerated shelving arrangement is that only a shelf module 1 with all components of a cooling device is provided except for the possibly provided central heat exchanger 54 with respective supply and return connecting lines 53.1 (module with type of expansion b), while the other shelf modules of a cooling rack assembly only with an evaporator 50, 50 ', 50 "are provided, wherein the evaporator 50th , 50 ', 50 "is advantageously but not necessarily designed as a continuous unit (extension type a modules). The evaporator modules of the expansion type a is connected via corresponding connection means 53 including connecting lines 53.1 and optionally electrical wiring for signal transmission (sensors, control) and electrical power to the other relevant components of the cooling device in the shelf module 1 of the expansion type b. All shelf modules 1, 2, 3 are prepared in the same way, however, for receiving all required components of the cooling device 5 and also with pre-installed sections of the connecting lines 53.1 and connecting means for a simple, fast connection between the cooling components of the shelf modules and optionally with the central heat exchanger 54 so that modules of a type of expansion with little installation effort can be converted into a module of the other or possibly another type of expansion with other or other components of the cooling device. Also, for example, in a refrigerated shelf arrangement with a larger number of shelf modules more than just a shelf module of the expansion type b or a type of expansion with additional components of the cooling device may be present.

An over several shelf modules 1, 2, 3 continuous evaporator 50 ', 50 "can also be subsequently relatively easily between the respective vertical profiles 10.1 and the distance lying in front of supporting profiles 10.4 used and on the vertical profiles and / or an intermediate partition, in particular an intermediate wall 12.2 are attached. The subsequent installation is z. B. by inserting the heat exchanger, in particular evaporator 50 ', 50 ", from one side parallel to the backplane or from the front, after respective support profiles have been removed 10.4, which are then reinstalled the support profiles 10.4 easy installation and removal.

As Fig. 2 In the construction shown, only one rack module 1 with the prepared connection means 53, which contain, for example, quick couplings and controllable valves, needs to be connected to the central heat exchanger 54, while the remaining rack modules 2, 3 are simply connected via the integrated connection means 53 Be connected with each other. The central heat exchanger 54 is usually connected via a secondary circuit to the condenser 52 of the respective shelf module 1 (type of expansion b), wherein in the secondary circuit z. B. a different coolant is used by a guided in the cooling rack assembly coolant. For the condenser 52 may, for. B. a compact plate or tube heat exchanger can be used. In the central heat exchanger 54 accumulating heat can be dissipated for another use of heat energy, as indicated by the arrow at the top right.

As the 3 and 4 let recognize, the bottom group 11, the rear wall group 12 and the roof group 13 are configured in multiple layers with spaces formed therein for the air duct. The air duct is effected or assisted by means of fans 56, 57, which are designed, for example, as radial fans or diagonal fans and of which one is arranged in the lower region and one or two in the upper region of the rear wall group 12 or alternatively two in the upper region the rear wall group 12 are arranged.

The or the upper fan 56 causes or cause the air flow through the evaporator 50, 50 ', 50 "from bottom to top, as in Fig. 10 is clarified. A portion of the cooling air flow formed by the evaporator 50, 50 ', 50 "is guided back down on the back of the inner cover 12.1 and flows through existing in the inner cover 12.1 vents in the refrigerator 4 to keep it at the required cooling temperature. In order to achieve optimum cooling, this cooling air flow conducted into the cooling chamber 4 can be further fanned out and suitably adjusted downward, for example, while reducing the flow resistance A further part of the cooling air flow is transmitted from the upper or the upper fans 56 through the vertical inner Interspace 12.4 of the rear wall group 12 in an associated upper gap 13.7 in the roof group 13 along the top of the refrigerator 4 upwardly bounding bottom cover 13.1 led to a front roof section 13.4, where they on the underside through a slit-like outlet opening 13.50 with an exit git ter exits 13.5 and on the front of a cold air curtain 70 forms (see. Fig. 10 ). The air flow of the cold air curtain 70 then occurs in the front region of the bottom group 11 by a there existing, covered with the grille 11.10, along the front extended inlet 11.11 in the space 11.6 below the bottom cover 11.1 again to again through the thus in flow communication inner vertical space 12.4 of the rear wall group 12 in the circuit to flow through the evaporator and the upper fan 56. The bottom cover 11.1, the inner cover 12.1 and the lower cover 13.1 of the roof group 13 are made of thin-walled plates, in particular made of metal or plastic, which are also easy to handle and clean for a good transfer of cooling power to the refrigerator 4. The plates of the bottom cover 11.1 are advantageously segmented in the width direction and extend from the inlet opening 11.11 in the front region of the bottom group 11 to the lower region of the inner cover 12.1 of the rear wall group 12. The plates of the inner cover 12.1 of the rear wall group 12 are advantageously segmented in the vertical direction and extend over the entire width between the two side frames 10 a Shelf module 1, 2, 3, wherein a plurality of vertically stacked plates can be easily used and removed, for. B. uncovering relevant components of the cooling device 5, to clean or to install or remove.

Like from the Fig. 5 . 6 and 7 can be seen, the bottom cover 11.1 in the front area on several block-shaped support means 11.5, z. B. plastic blocks made of hard plastic and placed in the rear on other support means, the z. B. are formed as Auflegewinkel with forward projecting support leg, in particular as an attached to the lower portion of the support sections 10.4 of the two side frames 10 angle bar.

Below the bottom gap formed on the bottom of the bottom cover 11.1 11.6 is a baffle 11.2 of heat and sound insulating plastic arranged on its upper side at the same time forms a sump for occurring liquid and has a drain hole 11.21, to which a drain pipe system is connected. On the underside of the guide plate 11.2 is provided with a Formkanalanordnung 11.20, by means of which below the guide plate 11.2, a lower outer horizontal gap is formed as a lower outer air flow channel 11.7 on the underside of the bottom group 11 by means of a bottom plate 11.3 or more Teilbodenplatten or Cover plates is covered down.

As the Fig. 6 and 7 show, to form the lower outer horizontal air flow channel 11.7 several of the front of the baffle 11.2 of respective inlet openings 11.70 outgoing channels of Formkanalanordnung 11.20 merged in the rear of the baffle 11.2 on the underside and go over a relatively wide rear recess or indentation the guide plate 11.2 into a rear, outer vertical gap or outer vertical flow channel 12.5 of the rear wall group 12, which is formed between the front of the outer lining 12.3 and an intermediate partition 12.2 between the outer lining 12.3 and the inner cover 12.1, as well as out Fig. 3 and partially off Fig. 10 seen. To make the transition between the lower outer air flow channel 11.7 and the lower portion of the outer vertical flow channel 12.5, the lower portion of the relatively thick-walled insulating outer panel 12.3 can be recessed and z. B. only a backside thin cover plate be left standing, with an insulation layer of the outer panel 12.3 is covered on the back. The recess in the insulating outer panel 12.3 can z. Example, by subsequent cutting of the front thin cover plate and the insulating layer or already made in the manufacture by releasing this area during foaming and exempting the front cover plate. In this way, the transition and a lower portion of the vertical outer flow channel 12.5 can be suitably arranged and z. B. behind the lower fan 57 and laterally on a side down in the rear wall group 12 accommodated compressor (see. Fig. 1 ) pass by. Subsequently, the vertical outer flow channel 12.5 is extended upward practically over the entire width of the rear wall group 12 by means of guide elements.

The arranged in the lower region of the rear wall group 12 fan 57 is located in the outer vertical space or in the thus formed vertical outer flow channel 12.5, via the intermediate partition with the intermediate wall 12.2 behind the evaporator 50, 50 ', 50 "in front of the outer lining 12.3 passes upward and is connected to an outer upper intermediate space or outer upper flow channel 13.8 to form a flow connection, as from the Fig. 8 and 9A combined with Fig. 10 is apparent. In the roof group 13, the outer upper flow channel 13.8 is separated from the inner upper flow channel 13.7 by means of an intermediate cover 13.2 and leads between the intermediate cover 13.2 and the underside of the upper cover 13.3 up to the front roof section 13.4 and occurs there by a formed on the bottom, spaced before the outlet opening 13.50 with the outlet grille 13.5 lying exit slit 13.80 to form on the front of the respective shelf module 1, 2, 3 and the cooling rack assembly lying before the cold air curtain 70 warm air curtain 71. The air flow formed by the hot air curtain 71 occurs in the front region of the bottom group 11 in a gap-like inlet opening lying in front of the grille 11.10 in the lower outer space or lower outer flow channel for forming a warm air circuit.

As in particular from the Fig. 9A and 10 Further, in the roof group 13, the lower cover 13.1, the intermediate cover 13.2 and the upper cover 13.4 are spaced by means of a plurality of shared support pins 13.6 to form the inner upper gap 13.7 and the outer upper flow channel 13.8. The upper cover 13.3 is thermally insulating as insulation board formed of insulating material, for example, according to the outer panel 12.3. The insulating cover 13.3 forms together with the insulating outer lining 12.3 of the rear wall group 12 and the insulating guide plate 11.2 of the bottom group 11 a shell-like heat insulation.

In the embodiment shown, the insulating outer lining 12.3 of the rear wall group 12 and the insulating top cover 13.3 of the roof group 13 and the insulating guide plate 11.2 of the bottom group 11 respectively on the refrigerator 4 facing inside of the vertical profiles 10.1, the upper horizontal profiles 10.3 and the lower horizontal profiles 10.2 of the associated side frame 10 attached. The outer lining 12.3 is provided at least on its side facing the refrigerator 4 inside with a stable coating or running as a stable stable plate in order to z. B. by means of vertical spacer profiles, which have, for example, H-shaped cross-section, the intermediate wall 12.2 of the intermediate partition under the respective distance for the outer vertical gap stable to install. The intermediate wall 12.2 can in turn at the vertical edges z. B. bent Z-shaped with outwardly projecting flange-like end portions and mounted on the refrigerator compartment 4 side facing the outer panel 12.3, z. B. by means of screws or rivets.

The intermediate wall 12.2, which consists for example of sheet steel or another suitable metal, offers a stable supporting base for the attachment of the evaporator 50, 50 ', 50 ", which advantageously extends over several shelf modules 1, 2, 3, as described above , 50 ', 50 ", which may be constructed of the shelf modules 1, 2, 3 associated sections, thus located in the region of the cold air duct in front of the hot air duct and is stably mounted therein by means of connection means of the receiving device, for. B. by means of fastening screws and fastening straps. At least on one side is at one Enough space available over several shelf modules 1, 2, 3 extending evaporator 50, 50 '50 "(see eg. Fig. 1 ), so that in this area connecting means for connecting lines for the refrigerant supply and injection of the refrigerant, such. B. multiple injectors of the injection assembly can be arranged for the evaporation. The evaporator 50, 50 ', 50 "is not attached to frame profiles or support profiles, so that on the one hand there is no heat transfer through the frame to the outside and on the other hand, the support sections 10.4 unhindered on and can be removed.

In alternative embodiments, instead of an evaporator for the cooling, another heat exchanger may also be installed in the rear wall group 12 or in the upper region of the cooling rack, the refrigerant advantageously being cooled in a remotely located central heat exchanger (eg with a chiller).

The support section 10.4 is on the underside of the upper horizontal profile 10.3 of the side frame 10 via a front-to-rear extended intermediate piece and an upper support plate 10.50 (s. Fig. 9B ) stably supported and screwed. As already Fig. 5 shows and in the Figs. 9B and 9C illustrates, the support section 10.4 is supported on its underside by means of a front-to-back extended support plate 10.40 relative to the top of the lower horizontal profile 10.2 of the respective side frame 10, wherein advantageously an intermediate piece 10.41 made of hard plastic is inserted, causing heat insulation and noise insulation becomes. The support profiles 10.4 can be easily installed and removed as a result of this attachment. The fasteners for the spacers on the horizontal profiles 10.2, 10.3 on the one hand and for the support plates 10.40, 10.50 of Support profiles 10.4 on the spacers on the other hand are arranged offset in such a way that no continuous metallic heat-conducting contact between the support section 10.4 and horizontal frame profiles 10.2 and 10.3 comes about.

The metallic support profiles 10.4 are provided with rows of holes in a predetermined, preferably standardized grid spacing, in which the plates of the inner cover 12.1 of the rear wall group 12 are simply attached and unhooked. Also support arms for the shelves can be easily hung on the support profiles in the desired height.

At the lower end portion of the vertical profiles 10.1 downwardly projecting Kippsicherungen 62 are mounted, which advantageously an adaptation to uneven floors z. B. by resilient or elastic intermediate elements and / or adjusting allow. In the front region of the floor assembly 11 and / or the roof group 13, a lighting device 64 may be arranged. In the front upper area a roller blind 63 is advantageously arranged to z. For example, close the cold storage room outside the store hours and save cooling energy.

For sealing the gaps in the bottom groups 11, rear wall groups 12 and roof groups 13 of the shelf modules 1, 2, 3 side sealing means are introduced.

The sealants are advantageous for. B. between the adjacent outer panels 12.3, the upper covers 13.3 and in particular between the guide plates 11.2 used. Although also or only between the side frame 10 adjacent stacked shelf modules 1, 2, 3 additional sealing elements be inserted to effect a sealing of the cooling space 4 between the shelf modules 1, 2, 3, however, the side frames 10 are preferably only via intermediate spacer elements, such. B. spacers, in defined positioning and stably braced with each other. As a sealant come different versions of sealing elements into consideration, such as. B. in cross-section mushroom-shaped sealing strip with fins. Also side walls can be mounted in a corresponding manner with adapted sealing means on the side frame 10, in particular so on the narrow edges of the outer panel 12.3, the lower cover 13.3 and the guide plates 11.2 sealingly to the respective end edge.

For the lateral sealing of the inner spaces 11.6, 12.4, 13.7 for the cold air flow and the outer flow channels 11.7, 12.5, 13.8 for the warm air flow are different lateral foreclosures into consideration. In a proven embodiment, the inner interspaces 12.4 of the rear wall group 12 are consistently connected over the entire shelf assembly with several juxtaposed shelf modules 1, 2, 3 with each other and closed only at the two end sides of the shelf assembly with relevant foreclosures advantageous sealing. This has the advantage that a continuous evaporator 50 ', 50 "can be used unhindered, whereas the inner interspaces 11.6 and 13.7 of the floor group 11 and roof group 13 in an advantageous embodiment are sealed off on both sides of each shelf module 1, 2, 3 and over The inner cover 12.1 of the rear wall group 12 in the transition areas between the lined-up shelf modules 1, 2, 3 is supplemented by means of intermediate plates.

The outer flow channels 11.7, 12.5, 13.8 are each foreclosed per shelf module 1, 2, 3 in the proven embodiment. In the rear wall group 12, this is done in the area of the intermediate wall 12.2, for example by means of their lateral folds or by means of inserted strips, corresponding also in the area of the roof group 13, in the area of the floor group 11 z. B. by the recesses on the underside of the baffle 11.2.

The Figs. 11A to 11X show an embodiment of successive assembly steps in the construction of a shelf module 1, 2, 3 or cooling shelves and an arrangement of two shelf modules. If desired, individual assembly steps can be omitted, changed or reversed.

First, according to Fig. 11A two side frames 10 each made up of a vertical profile 10.1, a lower horizontal profile 10.2 projecting in the lower region thereof and an upper horizontal profile 10.3 protruding in its upper region. The lower horizontal profiles 10.2 are provided on their underside with the height-adjustable feet 60, 61 and at the lower end of the vertical profiles 10.1 is the anti-tilt device 62 downward. In the embodiment shown, the upper horizontal section 10.3 is shorter than the lower horizontal section 10.2 executed, however, can also be designed as long or longer than the lower horizontal section 10.2 in a likewise advantageous embodiment, the upper horizontal section 10.3 to attach the roof group 13 stable. The two side frames 10 are placed according to the width of the shelf module 1, 2, 3 spaced from each other.

In a further step ( Fig. 11B ), the bottom plate 11.3 as a lower cover of the bottom group 11 with a vertical profiles 10.1 zukehrenden back 11.30 and the drain hole 11.21 provided. This covers the underside of the guide plate 11.2 with the mold channels 11.20, as in the further assembly step after Fig. 11C is shown. Instead of the bottom plate 11.3, however, the molding channels 11.20 can also be covered separately by one or more sub-plates and advantageously also sealed. As Fig. 11C further shows, the z. B. formed from a plurality of sub-channels molding channel 11.20 on the back of the guide plate 11.2 in a relatively wide lateral gap-like exit opening 11.22, which is open at the top and bounded by a fold of the bottom plate 11.3 and a sub-plate. Also marked are the inlet openings 11.70 of the molding channel 11.20.

The thus prepared guide plate 11.2 is in a further step according to Fig. 11D arranged and fixed on the lower horizontal profiles 10.2.

Then according to Fig. 11E the heat-insulating outer panel 12.3 mounted on the front of the vertical profiles 10.1. In the lower part of the outer lining 12.3 is provided with a continuous compressor opening 12.30 for later installation of the compressor, which is located next to the outlet opening 11.22 of the guide plate 11.2. Above the exit opening 11.22, a lower fan opening 12.10 is placed in the outer panel 12.3, but which is covered on the back of the outer panel 12.3, for example, with a thin cover layer of the outer panel 12.3 or a separate plate and a channel for the flow of air from the exit port 11.22 to the later to be installed lower fan 57 forms.

In a further step, the upper cover 13.3 is mounted on the underside of the upper horizontal profiles 10.3 (FIG. Fig. 11F ). On top of the top cover 13.3, the upper cooling component receptacle 13.30 is recessed in the embodiment shown at the rear right, with only a lower cover layer of the heat-insulating upper cover 13.3 is left.

At the in Fig. 11G Next step shown spacers 12:31 are mounted on the front of the outer panel 12.3 near the vertical edges.

Subsequently, between the upper and lower horizontal profiles 10.3, 10.2 in the rear region parallel spaced from the front of the vertical profiles 10.1, the support profiles 10.4 installed, using the support plates 10.40, 10.50 and the insulating spacers between the bottom of the top cover 13.3 and Top of the baffle 11.2 ( Fig. 11H ).

In the next step ( Fig. 11 I) be fixed between the support sections 10.4 and the vertical profiles 10.1, if necessary, fixings 10.10 for stiffening or as holding members, which can also be omitted if the supporting force is sufficient.

In a subsequent step ( Fig. 11J ), the lower fan 57 is mounted in front of the lower fan opening 12.10 and surrounded in further steps with a fan housing 12.11 ( Fig. 11K, 11L ) to form the lower portion of the outer vertical flow channel.

In a further step ( Fig. 11M ) are mounted on the front of the outer panel 12.3 strip-like vertical spacers 12.32, on which under Distance to the outer panel 12.3 the intermediate wall 12.2 is attached to form the upper portion of the vertical flow channel, wherein a connection to the upper opening of the fan housing 12.11 is made ( Fig. 11N ).

A plate-like cold air baffle 12.40 is mounted at a distance, behind which the evaporator 50, 50 ', 50 "(not shown) or another heat exchanger is arranged, and the upper fan 56 is mounted on a plate spaced from the baffle 12.2 ( Figs. 11O and 11P ). The upper fan 56 or instead several, z. B. two juxtaposed upper fan is, or are covered by a top fan cover 12.20 like a housing, wherein from the or the upper fans 56 from the evaporator 50, 50 ', 50 "or heat exchanger upwardly flowing cold air, for example, sucked axially and radially is discharged, namely a partial flow down on the refrigerator 4 facing the inside of the Kaltluftleitblechs 12.40 and a partial flow up into the overhead inner space 13.7 of the appropriately completed roof group 13 (FIG. Figs. 11Q and 11R ). The box-like upper fan cover 12.20 is designed for air guidance in the desired direction and strength and can also be provided with an intermediate partition between two fans 56 in order to avoid mutual interference (eg short circuit). For example, in the fan cover 12.20 outflow openings can be introduced upwards, downwards and, if desired, also forward in a coordinated size.

Also, the outer vertical flow channel 12.5 is connected to the respective outer upper flow channel 13.8 of the roof group 13, after the outer upper flow channel 13.8 and the upper gap 13.7 are made in the roof group 13 using the support pins 13.6 ( Fig. 11S and 11T ). Here, the gap-like outlet opening 13.50 and the exit slit 13.80 for the cold air curtain 70 and the hot air curtain 71 in the front lower portion of the roof group 13 are formed.

In further steps, z. B. from two shelf modules 1, 2, a cooling rack assembly constructed as the Fig. 11U, 11V . 11W and 11X demonstrate. In this case, the side frames 10 on the vertical profiles 10.1, the lower horizontal profiles 10.2 and / or the upper horizontal profiles 10.3 with the interposition of spacer elements, such. As spacers, clamped in unique relative positioning with each other and along the facing narrow edges of their outer panels 12.3, baffles 11.2 and upper covers 13.3 with the interposition of sealing elements such. B. in cross-section mushroom-shaped sealing strip 11.8, sealed.

Claims (14)

1. Cooling unit arrangement consisting of at least two mutually arrangeable shelf modules (1, 2, 3), comprising a base group (11), a rear wall group (12), and an upper group (13) with corresponding casing parts and forming a cooling chamber (4), and a cooling device (5), wherein the shelf modules (1, 2, 3) have identical modular parts with frame profiles, which support the base group (11), the rear wall group (12), and the upper group (13), and wherein at least the rear wall group (12) of each shelf module (1, 2, 3) is equipped with components of the cooling device,
   wherein
   the module frames with the frame profiles form side frames (10) of the shelf modules (1, 2, 3), and the base group (11), the rear wall group (12), and the upper group (13) are mounted with their corresponding casing parts on the side frames (10),
   wherein
   the cooling device (5) comprises at least one compressor (51), an evaporator (50, 50', 50"), a condenser (52), connecting elements (53) including connecting lines (53.1), a fan (56, 57), and a control device with a control unit (55.1),
   wherein the rear wall group (12), the base group (11) and/or the upper group (13) of each shelf module (1, 2, 3) is/are designed for detachably mounting further components of the cooling device (6), characterized in that the shelf arrangement is provided with a common evaporator (50, 50', 50") arranged in the rear wall group (12) and extending along a plurality of or all shelf modules (1, 2, 3).
2. Cooling unit arrangement according to claim 1,
   characterized in that
   only some of the shelf modules (1, 2, 3), particularly only one of the shelf modules (1, 2, 3) is provided with a compressor (51) and/or a control unit (55.1).
3. Cooling unit arrangement according to claim 1 or 2,
   characterized in that
   the cooling device is connected to a central heat exchanger (54) by means of connecting lines.
4. Cooling unit arrangement according to one of the previous claims,
   characterized in that
   in the rear wall group (12), a vertical gap is formed between a thermally insulating outer casing (12.3) and an inner covering (12.1) which delimits the cooling chamber (4) toward the rear and is provided with air openings, wherein the gaps of adjoining shelf modules (1, 2, 3) complement one another to form an overall gap which extends continuously over the entire width of the shelf arrangement, said overall gap being tightly closed at the lateral ends, and
   that the evaporator (50, 50', 50") extends into the overall gap.
5. Cooling unit arrangement according to claim 4,
   characterized in that
   the evaporator (50, 50', 50") is fastened to adjacent vertical profiles (10.1) and/or to the front side of a flat intermediate partition.
6. Cooling unit arrangement according to one of the previous claims,
   characterized in that
   a receiving device for each or only one shelf module (1, 2, 3) and for the detachable installation of cooling components of the cooling device (5) is provided in the lower area of the rear wall group (12) with a receiving chamber for a compressor (51), and is provided in the rear wall group (12) or in or on the upper group (13) with a receiving part for the control unit (55.1) and/or a condenser (52).
7. Cooling unit arrangement according to claim 6,
   characterized in that
   the compressor (51) and the control unit (55.1) are arranged in the same shelf module (1, 2, 3).
8. Cooling unit arrangement according to claim 6 or 7,
   characterized in that
   also only one condenser (52) is arranged in the shelf arrangement for a partial quantity or for all shelf modules (1, 2, 3), said condenser (52) being arranged in the same shelf module (1, 2, 3) as the compressor (51) and the control unit (55.1).
9. Cooling unit arrangement according to one of the claims 4 to 8,
   characterized in that
   each of the side frames (10) has a rear vertical profile (10.1) and a lower horizontal profile protruding forward from the vertical profile (10.1) at the bottom, and an upper horizontal profile (10.2, 10.3) protruding forward at the top; that a support profile (10.4) is installed between the upper and lower horizontal profile (10.2, 10.3) and spaced apart from the vertical profile (10.1) toward the front; and
   that the inner covering (12.1) is attached to the front side or between the support profiles (10.4) of the two side frames (10), and the thermally insulating outer casing (12.3) is attached to the front side, the rear side, or between the vertical profiles (10.1).
10. Cooling unit arrangement according to claim 9,
    characterized in that
    the evaporator (50, 50', 50"), which extends over the width of a plurality of cooling shelves (1, 2, 3), extends between and through the vertical profiles (10.1) and support profiles (10.4).
11. Cooling unit arrangement according to one of the claims 4 to 10,
    characterized in that
    between the inner covering (12.1) and the outer casing (12.3) of each shelf module, at least one fan (56), particularly a radial fan, is arranged which produces a cold air flow through the evaporator (50, 50', 50").
12. Cooling unit arrangement according to claim 11,
    characterized in that
    one or more fans (56), arranged laterally next to one another, are arranged above the evaporator (50, 50', 50").
13. Cooling unit arrangement according to one of the claims 4 to 12,
    characterized in that
    the base group (11), on its upper side which faces the cooling chamber (4), is provided with a floor covering (11.1) and, spaced apart from and below said floor covering (11.1), with a guide plate (11.2) for forming a lower horizontal gap;
    that the upper group (13), on its lower side which faces the cooling chamber (4), is provided with a lower covering (13.1) and, spaced apart from and above said lower covering (13.1), with an upper covering (13.3) and/or an intermediate covering (13.2) for forming an upper horizontal gap; and that the lower and upper horizontal gap is fluidically connected to the vertical gap which contains the evaporator (50, 50', 50") and is formed between the inner covering (12.1) and the outer casing (12.3) in the rear wall group (12) for a circulating cold air flow, wherein the circulation is completed via the front side of the cooling unit arrangement.
14. Cooling unit arrangement according to claim 13,
    characterized in that
    in the base group (11) on the underside of the guide plate (11.2), an outer, lower flow conduit is formed by means of a floor plate (11.3) arranged below the guide plate (11.2) or inside the guide plate (11.2);
    that in the upper group (13) between the upper covering (13.3) and the intermediate covering (13.2), an outer, upper flow conduit is formed;
    that in the rear wall group (12) between the front side of the outer casing (12.3) and the intermediate partition, an outer, vertical flow conduit is formed; and that the outer, lower flow conduit and the outer, upper flow conduit are fluidically connected to the outer vertical flow conduit to form a circulating warm air flow, wherein the circulation is completed via the front side of the cooling unit arrangement.

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