BRPI0804334A2 - cooling module for forced ventilation and refrigeration apparatus - Google Patents

Abstract

COOLING MODULE FOR FORCED VENTILATION COOLER AND COOLER. The refrigeration module is mounted in a cabinet (G) of the refrigeration apparatus and comprises a basic portion (10) provided with: a lower wall (11) adjacent to a refrigeration compartment (1,2); a rear chamber (CT) housing a compressor (12), a condenser (13) and a control module (MC); a front chamber (CD) housing an evaporator (16); a median chamber (CM) open to the front chamber (CD) and housing a fan (17) operatively associated with the evaporator (16); at least one suction duct (18) connecting the interior of an adjacent refrigeration compartment: with the front chamber (CD) upstream of the evaporator (16); at least one insufflation duct (19) connecting the: median chamber (CM) with the interior of at least one refrigeration compartment (1,2); and a lid portion (20) seated over the basic portion (10), isolating the interior of the cooling module from the rest of the cabinet (G).

Description

"REFRIGERATION MODULE FOR FORCED DEVENTILATION REFRIGERATOR AND REFRIGERATOR"

Field of the invention

The present invention relates to a cooling module to be applied to a forced ventilation type cooler and having a single cabinet that internally defines a cooling compartment or, preferably, a freezer compartment and a refrigerator compartment, separated by a horizontal partition wall. and closed by their front doors. Although particularly useful for combination refrigerators, the refrigeration module in question is equally applicable to single-compartment refrigerators.

Background of the invention

The refrigerators are generally comprised of a cabinet formed by an outer box, usually of metal foil, and one or two inner boxes, molded of plastics material, for example EPS, separated from each other, the outer box being separated from the other inner boxes by a thermally insulating filling usually made of polyurethane foam injected between the said inner and outer boxes, and the inner boxes define, respectively, the freezer compartment and the refrigerator compartment, and the freezer compartment may be arranged above or below the refrigerator compartment and separated by the partition wall in the case of the Combined refrigerators.In such known simple or combined "no-frost" refrigerators, the cooling system comprises a compressor, a condenser, an expansion device, coolant conduit ducts, an evaporator, a fan to provide forced air flow through the evaporator and ducts to conduct forced, cooled evaporator air flow to the freezer and cooler compartments and to suck in "hot" air said compartments, directing it to the evaporator. Automatic evaporator defrosting means, the power cables of the different components and the control devices including a control module are provided. In these known constructions, the different components of the cooling system and the control devices mounted in different locations of the cabinet. The compressor and control module are positioned in the postero-inferior cabinet, which is known as a "dog house". The evaporator and fan are positioned at the rear of the coldest compartment and the condenser is usually mounted on the outside rear of the cabinet (when operating by natural convection) or even in the "lower house" (when operating by forced convection). Considerable extensions of coolant ducts and power and control electrical cables are usually mounted inside the insulation injected between the two inner boxes and the outer case.

In addition to this type of conventional mounting taking up internal cabinet space, it is complex and costly to assemble, requiring a large amount of assembly line labor, as well as large extensions of refrigerant, conduit, and control cables due to mounting. different components of the refrigeration and control systems in distinct and distant locations within the enclosure structure. In addition, these known constructions require a large number of production process controls and the end product itself and also a definition of different premature models on the production line. It would counteract the fundamental principles of modularity and manufacturing with optimization in the degree of standardization decomposing in assembly operations.

In summary, the known constructions for forced-air cooling systems mounted on refrigerator cabinets present, as drawbacks, high complexity of components and assembly, high cost of raw material and manufacturing and assembly, and little flexibility in terms of adaptation to different types. refrigerator models.

Summary of the invention

Due to the aforementioned drawbacks with respect to known cooling systems, it is an object of the present invention to provide a single or combined cooling module for simple and constructive standardization, ease of assembly in the refrigerator cabinet structure, reduced manufacturing and assembly cost. .

It is a further object of the present invention to provide a cooling module as mentioned above which can be applied to different models of refrigerators and which carries in its structure all components of the refrigeration system and the refrigeration operative control system, allowing the cabinet to last. receive only the structural, insulated and conductive elements of the forced and cooled forced air flows between the cooling module and the interior of the cabinet.

It is a further object of the invention to provide a cooler incorporating a cooling module as mentioned above.

The aforementioned objects and still further objects relating to the present invention are achieved by providing a cooling module to be mounted in the cabinet of a forced-ventilating refrigeration apparatus, of a kind comprising internally the cabinet, at least one cooling compartment closed by a respective front door. .

According to the invention the cooling module comprises a basic frame provided with: an underside wall adjacent to an upper wall of a cooling compartment; a rear chamber subsequently opened out of the cabinet and housing a compressor, a condenser, a defrost water collecting tray, a first fan, producing a forced ambient flow through the condenser, and a control module; a front chamber housing an evaporator connected to the tray by a defrost water duct; a median chamber open to the front chamber and housing a second blower to produce a forced flow through the evaporator; at least one suction duct having an inlet end open out of the cooling module and into an adjacent cooling compartment and an open outlet end to the front chamber upstream of the evaporator, at least one insufflator duct having an open inlet end to the middle chamber, downstream of the second fan, and an outlet end open out of the cooling module and into an adjacent cooling compartment; and the rear, middle and front chambers as well as the suction and insufflation ducts being openly opened outwardly from the basic portion of the refrigeration module but closed by a lid portion seated over the basic portion.

The generically defined construction above allows the cooling module to be completely constructed separately from the cabinet and incorporating all components of the refrigeration system and the operating control system, avoiding the need to insert into the enclosure and insulating filler cabinet, electrical cables and coolant ducts, This considerably simplifies the production process of single or combination refrigerators, as the cooling module can be mounted on top of a single-compartment cabinet or in the partition wall region disposed between the refrigerator and freezer compartments of a combined refrigerator.

Brief Description of Drawings

The invention will be described below with reference to the accompanying drawings, given by way of example of possible embodiments of the invention and in which:

Figure 1 is a schematic perspective view illustrating the refrigeration module and three possible assemblies thereof in a single, combined refrigeration cabinet;

Figure 2 is a perspective view of a blown-out cooling module module constructed for operation in a combined refrigerator;

Fig. 2A is an enlarged detail of part of the cooling module of Fig. 2;

Figure 3 is a perspective view of the cooling module of Figure 2, but with its lid portion seated over the basic portion;

Fig. 4 is a longitudinal sectional view of a cooling module of the type shown in Fig. 3 to be mounted in the intermediate partition of a combined cooler, with the freezer compartment disposed above the cooling module and the refrigerator compartment;

Figure 5 is a longitudinal cross-sectional view of a cooling module of the type shown in Figures 3 and 4 but configured to be mounted in the middle part of a combined refrigerator having the freezer compartment disposed below the cooling module and the refrigerator compartment; a vertical cross-sectional view of a combined cooler having the freezer compartment defined in the upper cabinet and separated from the lower cooler compartment by the cooling module shown in FIG. 4;

Figure 7 is a perspective view of a possible construction of the cabinet-defining portion of the refrigerator compartment incorporating a pair of air distribution ducts in their posterolateral regions;

Figure 8 is a view similar to that of figure 7, but illustrating said cabinet portion formed by the junction of side and rear panels, with the latter incorporating a forced flow distribution duct into the refrigerator compartment;

Figure 8A is an enlarged detail of the panel engaging regions;

Figure 9 is a front perspective view of the cooling module previously carrying a trim panel provided with a control panel; and

Figure 10 is a front perspective view of a combined cooler provided with two front doors and an intermediate trim panel in which a control panel, a water dispenser device and an ice dispenser device are mounted.

Description of the invention

As already mentioned and illustrated in the accompanying drawings, the present invention relates to an MR cooling module to be mounted in a cabinet G of a forced ventilation type refrigeration apparatus and which comprises one or two cooling compartments 1,2 closed by respective front doors 1A, 2nd As illustrated in Figure 1, the MR cooling module can be mounted on top of an enclosure G provided with a single cooling compartment 2 or in a median region, separating two refrigeration compartments 1,2 which can be defined by a freezer compartment CF arranged in top or bottom of cabinet G, and a refrigerator compartment CR disposes another part of cabinet G, as shown in the two right images in Figure 1.

According to the invention, the MR cooling module comprises a basic portion 10, preferably constructed of a low thermal conductivity material, such as a plastics material, and having a plan view generally similar in shape and slightly inferior to that of the inner region of cabinet G in which the refrigeration module MR is mounted. The base portion 10 is provided with a lower wall 11 which generally extends about half later than the total depth of the base portion 10, when it is then vertically attached to an anteroinferior wall 11a, raised by a with respect to the bottom wall 11, to define a void in the mounting region within the cabinet, as will be explained below.

The bottom wall 11 of the base portion 10 is mounted on the interior of cabinet G to be adjacent to or even defining at least part of an upper wall of a cooling compartment 1, 2 which may constitute the CR compartment, in the assemblies illustrated in the two left images on the Figure 1, or the CF freezer compartment, as shown on the right of Figure 1.

The basic portion 10 is further provided with a rear chamber CT subsequently opened out of the cabinet G sized to accommodate a compressor 12, a condenser 13, a defrost water collecting tray 14, a first blower 15, to produce a forced ambient flow through the housing. condenser 13 to cool it even though the condenser is small in size so that it can be mounted on the inner CT rear chamber, which is further mounted with an MC control module and, optionally, a forced air flow direction device for the compartments. CF freezer and CR cooler when the cooling module is mounted in a combined cooler. In the assembly illustrated in Figure 1, the first fan 15 is positioned behind the condenser 13, while in the assembly of Figures 2 to 3, the second fan 15 is mounted laterally to the condenser 13. The basic portion 10 of the MR cooling module further comprises: a chamber front CD housing an evaporator 16 and connected to tray 14 by a defrost water duct 14a, generally defined in a deep portion of the front CD, median CM and rear CT chambers (see figures 4 and 5); a median chamber CM open for front chamber CD and housing a second fan 17 to produce a forced air flow through the evaporator 16; at least one suction duct 18 having an inlet end 18a open out of the MR cooling module and into an adjacent cooling compartment 1, 2 and an outlet end 18b open to the front chamber CD, upstream of the evaporator 16; and at least one blower duct 19 has an inlet end 19a open to the downstream median chamber CMa of the second fan 17, and an outlet end 19b open outwardly of the cooling module MR and into an adjacent cooling compartment 1,2.

In the illustrated construction, the rear CT, front CD and middle CM chambers, and the suction ducts 18 and insufflator 19 are open above the basic portion 10 of the MR refrigeration module, but are closed by a lid portion 20, seated and fixed over the basic portion 10 and which is also preferably constructed of low thermal conductivity material.

As shown in Figures 3, 4 and 5, the inlet 18a, 19a and outlet 18b, 19b ends of the suction ducts 18 and insufflator 19 are preferably provided through at least one of the cooling module parts MR defined by the bottom wall 11 and the portion 11. depending on the type of mounting to be given to the MR cooling module as shown in figures 2, 2A3, 4 and 5. For example, if the cooling module is mounted in the extreme upper region of cabinet G, the input ends 18a, 19a and outlet 18b and 19b of the suction and insufflator ducts 19 are provided through the bottom wall 11 of the basic portion 10, as this is the only wall of the cooling module facing a cooling compartment 2 having cooled forced air inflation and the heater exhaust to be cooled in the evaporator 16.

In the case of combined refrigerators having a CF freezer compartment and a CR refrigerator compartment, the hot air suction duct 18 has at least one inlet end 18a open for each of these compartments through a respective lower lld opening 11 and a respective opening 20d the cap cooling 20 of the MR refrigeration module, while the insufflator duct 19 has at least one outlet end 19b open for each said CF freezer and cooler compartments through respective openings 11c of the bottom wall 11 and openings 20c of the lid portion 20 of the MR refrigeration module.

It should be understood that the housing 1, 2, adjacent to the basic portion 10 of the MR refrigeration module, can be maintained in fluid communication with each hot air retracting aperture 11 provided through the antero-inferior wall 11a by means of a respective portion of it. duct (not shown) incorporated internally into the cabinet, both sides of the void formed under said antero-inferior wall 11a.

When the refrigerating apparatus is of the combined type, it is desirable to provide a control device 30 for regulating the forced air flow into the CR refrigerating compartment and thus the operating temperature of the latter. The control device 30 defines constant fluid communication between the CM chamber and the outlet end 19b of the duct 19, facing the CF freezer compartment and selective and adjustable fluid communication between the CM chamber and the outlet end 19b of the duct 19, facing In the illustrated construction, the control device 30 comprises a block 31 of low thermally conductive material, such as plastic, sized to fit within the CT chamber, generally between compressor 12 and condenser 13 and internally poured to defining in its interior the blower duct 19 having an inlet end 19a open to the median chamber CM, downstream of the second blower 17 and a pair of outlet ends 19 open each to a respective opening 11c, 20c practiced through the p bottom web 11 and datamp portion 20, respectively, of cooling module MR. The control device 30 further houses an actuator 31 which may take the form of a thermostat operatively associated with a shutter 33 disposed between the inlet end 19a and outlet end 19b of insufflator duct 19 facing refrigerator compartment CR to selectively displace said shutter 33 to regulate the flow of forced forced air to be released into said refrigerator compartment through said outlet end 19b.

As may be seen more particularly in Figures 4 and 5, the control device 30 is constructed to have the inlet 19 and outlet 19b ends of the insufflator duct 19 arranged in symmetrical arrangement 31 so as to allow the latter to be mounted in two inverted positions a relative to each other according to the positioning of the cooling compartment CR in relation to the freezer compartment CF. Thus, regardless of the type of assembly of the combined cooler, the shutter 33 will be arranged at that outlet end 19b of the insufflator duct 19, facing the cooler housing CR.

When assembled in combination refrigerators, the MR cooling module now forms at least a substantial part of a PD partition wall (see Figure 6) which is conventional and necessarily provided between the CF freezer and CR cooler compartments.

In the illustrated construction, the front chamber CD is formerly closed by a front wall portion 11b, incorporated into the antero-inferior wall 11a of the basic portion 10 and positioned adjacent to slightly rearward with respect to the seating plane of the front door (s) 1a, 2a against Cabinet G.

Regardless of the placement of the MR cooling module in cabinet G, the front wall portion 11b is preferably configured to previously load a PA trim panel provided with a user-friendly control panel 40 which may include adjustment and operation control elements. of the refrigerator, in different arrangements well known in the art. An important aspect of this solution is that the PA trim panel is coupled to the MR cooling module, thereby receiving the control cables related to the cooling operation.

When the MR refrigeration module is positioned in a mid-region, as is the case with the PD wall of the combined coolers, the front wall portion 11b of the basic portion 10 may carry a finishing panelPA provided, in addition to the control panel 40, of a dispensing device. water 50 and / or an ice dispenser 60, both of which may be constructed in a manner well known in the art.

Since the front wall portion 1b of the basic portion 10 is located in the combined refrigerators between the two front ports 1a, 2a, it may carry an extension of a refrigerant conduit 12a, which connects the discharge from compressor 12 to condenser13, allowing warming of this front region of Cabinet G.

In single-refrigeration compartment refrigerators, the lower wall 11 of the basic portion 10 may define at least part of the adjacent extreme wall, in this case the extreme upper wall, the cooling compartment, generally defining the CR refrigerator compartment. However, it is generally preferable to provide an insulating plate 3 under basic apportion 10, said insulating plate 3 having a configuration similar to that of the lid portion 10, and is also provided with openings (not shown) aligned with the inlet and outlet ends of the suction ducts. 18 and insufflator 19, respectively. In the illustrated construction, the antero-inferior aspect insulating plate 3 forms the basic portion 10, a plenum P suitable for housing reservoirs and various mechanisms.

In the combined refrigeration appliances, the same constructive and operational characteristics as described above with respect to the lower wall 11, placaisolante 3 and plenum P occur, which face the upper part of the adjacent refrigeration compartment1, 2 which can be defined by the freezer compartment CF or by refrigerator compartment CR.

In such a refrigerator, the lid portion 20 may be constructed to define the adjacent lower extreme wall of the cooling compartment 1,2 itself positioned above the partition wall PD defined by the cooling module MR.

As shown in figures 6, 7 and 8 to ensure more efficient air circulation inside the CR cooler compartment and optionally the CF freezer compartment, cabinet G can be constructed to incorporate in its interior one or more air distribution ducts. 70 71 are provided along the height of the respective cooling compartment 1, 2, the inlet end of each duct 70 being coupled to the outlet end 19b of the insufflator duct 19. The coupling of these ducts is obtained by simply mounting the MR cooling module on the duct. cabinet G, eliminating the need for additional hurricanes in the prefabricated elements.

In the construction illustrated in Figure 7, each cabinet portion G defining a respective cooling compartment 1, 2 comprises a single U-shaped horizontal cross-section with its side panels defining the cabinet side walls and its rear panel defining the wall. In this embodiment, an air distributor 70 is formed within each of the rear side corners of the cabinet portion G, each of the air distributor ducts 70 being open to the interior of the respective cooling compartment through openings 71.

In the construction illustrated in Figure 8, each cabinet portion G defining a respective cooling compartment 1, 2, is formed by three two side panels 4 and a rear panel 5, the latter incorporating in its inner region a distributor duct 70 extended to the at least part of the height of the respective cooling compartment 1, 2 and provides a plurality of air outlet openings 71 to the interior of said compartment.

Figure 8a shows, in partial and horizontal horizontal section, a detail illustrating a possible interlocking manner between each side panel 4 and the rear panel 5. In this construction, the facing extreme edges of the panels are chamfered at 45 degrees and configured to set a pair on one side. small divergent longitudinal flaps 5a in trapezoidal configuration and, on the other hand, a pair of longitudinal recesses 4a, forming a dovetail fitting, but allowing frontal seating, with the engagement of the coupling ensured by a median wedge 6 inserted into a panel recess 5b it carries the diverging longitudinal flaps 5a, median wedge 6 forcing the diverging longitudinal flaps 5a away from each other, keeping them within the longitudinal recesses 4a of the other panel. Attaching the cooling module to the above described portion portions with respect to figures 7 and 8can It may be made by different elements, such as bolts inserted through one of the structural elements and engageable with a spring retaining sleeve, provided in a housing in the other structural element to be fixed to the first one.

As shown in Figure 6, cabinet G may be enclosed underneath by a bottom panel 7 and, superiorly by a top panel 8 constructed to define structural walls and thermal insulators, suitably fixed to cabinet portions G with horizontal transverse cross-section in Although only a few embodiments of the invention have been illustrated and described herein, it should be understood that changes in shape and relative disposition of the different elements may be made without departing from the inventive concept defined in the accompanying claims.

Claims (16)

1.- Cooling module for a forced-cooling appliance of the type comprising a cabinet (G) which internally defines at least one cooling compartment (1,2) closed by a respective front door (la, 2a), the module being cooling (MR) mounted to the cabinet (G) and characterized by the fact that it comprises a basic portion (10): a lower wall (11) adjacent to an upper wall of a refrigeration compartment (1,2); a rear chamber (CT) subsequently opened out of the cabinet (G) and housing a compressor (12), a condenser (13), a freeze-water collecting tray (14), a first fan (15), producing a forced ambient air flow through capacitor (13), and a control module (MC); a front chamber (CD) housing an evaporator (16) and connected to the tray (14) by a defrost water duct (14a); a median chamber (CM) open to the front chamber (CD) and housing a second blower (17) to produce a forced flow through the evaporator (16); at least one inlet duct (18) having an inlet end (18a) open outside the refrigeration module (MR) and into an adjacent refrigeration compartment (1,2) and an outlet end (18b) open to the chamber front (CD) upstream of the evaporator (16); at least one inflator duct (19) having an inlet end (19a) open to the median chamber (CM), downstream of the second vent (17), and an outlet end (19b) open beyond the cooling module (MR) and to the interior of an adjacent refrigeration compartment (1,2); and the rear (CT), front (CD), and median (CM) chambers and further suction ducts (18) and insufflator (19) open above the basic portion (10) of the refrigeration module (MR) but closed by a lid portion (20) seated on the base portion (10). 2. Cooling module according to claim 1, characterized in that the inlet (18a, 19a) and outlet (18b, 19b) ends of the suction ducts 18) and insufflator (19) are provided through at least one of the cooling module (MR) parts defined by the lower wall (11) and the lid portion (20). Cooling module according to Claim 2, characterized in that the basic portion (10) and lid portion (20) are formed of a material with reduced thermal conductivity. Cooling module according to claim 2 or 3, characterized in that it is mounted in the upper region of the cabinet (G), having the rear chamber (CT) open out of the cabinet (G) and the front chamber (CD). ) previously closed by a front wall portion (11b) adjacent but slightly recessed with respect to the seating plan of the front door (2a) against the cabinet (G), with the inlet (18a, 19a) and outlet (18b, 19b) ends of the suction ducts (18) and insufflator (19) provided through the lower wall (11) of the basic portion (10) of the cooling module (MR) and open to a single cooling compartment (2) of the cabinet (G). Cooling module according to Claim 4, characterized in that the front wall portion (11b) previously carries a trim panel (PA) provided with at least one control panel (40). 6.- Refrigeration module according to any of claims 2 or 3, and the enclosure (G) of the type comprising two refrigeration compartments (1,2) defined by a freezer compartment (CF) and a refrigerator compartment (CR) ) separated by a partition wall (PD), characterized in that said partition wall (PD) comprises the cooling module (MR) with its rear chamber open outside the cabinet (G) and the front chamber (CD) previously closed by a wall portion (11b) adjacent but slightly recessed with respect to the front door seating plate (1a, 2a) against the cabinet (G), each part defined by the bottom wall (11) of the base portion (10) and the lid section (20) defines at least part of an adjacent end wall of one of the freezer (CF) and refrigerator (CR) compartments. Cooling module according to Claim 6, characterized in that the base portion (10) carries along an extension of a refrigerant line (12a) along its front wall portion (11b); connecting the discharge from the compressor (12) to the condenser (13). Cooling module according to either of Claims 6 or 7, characterized in that the front wall portion (11b) of the basic portion (10) previously carries a trim panel (PA) provided with at least one of the following. user-accessible control panel (40). Cooling module according to Claim 8, characterized in that the trim panel (PA) is further provided with at least one of the devices defined by a water dispenser (50) and an ice dispenser (60). Cooling module according to any one of claims 6 to 9, characterized in that it further comprises a control device (30) for regulating the forced air flow into the cooler (CR) compartment mounted inside the rear chamber. (CT), in order to define constant fluid communication between the median chamber (CM) and the outlet end (19b) of the insufflation duct (19), facing the freezer compartment (CF) and a fluid-adjustable and adjustable communication between the median chamber ( CM) and the outlet end (19b) of the insufflating duct (19), facing the refrigerator compartment (CR). Cooling module according to claim 10, characterized in that the control device (30) comprises a block (31) of low thermal conductivity material, fitted within the rear chamber (CT) and internally cast to define the inflator duct (19) having an inlet end (19a) opens into the median chamber (CM) downstream of the second vent (17) and a pair of outlet ends (19b) each open to a respective opening (11c) , 20c) through the lower wall (11) and the lid portion (20), respectively, of the refrigeration module (MR), said control device housing inside a shutter (33) disposed between the inlet end (19a) ) of the air blower duct (19) and the outlet end (19b) of the latter, facing the cooler compartment (CR), the plug (33) being selectively displaced by an actuator (31), to regulate the flow of cooled forced air to be released into the cooler compartment (CR). Cooling module according to claim 11, characterized in that the control device 30 has the inlet (19a) and outlet (19b) ends of the insufflating duct (19) arranged in a symmetrical arrangement (31); to allow mounting of the latter in two inverted positions relative to each other according to the positioning of the cooling compartment (CR) relative to the freezer compartment (CF). Cooling module according to any one of claims 6 to 12, characterized in that it is mounted between two portions of the cabinet (G), each having a U-shaped cross-section defined by a pair of side panels ( 4) and a rear panel (5) so as to laterally and later surround one of the freezer (CF) and cooler (CR) compartments, each portion of the cabinet (G) incorporating, at the rear panel (5) at least one distributor duct. air (70) provided with a plurality of air outlet openings (71) into the interior of the refrigeration compartment (1,2), the inlet end of each air distributor duct (70) coupled to the outlet end (19b) of the insufflation duct (19). 14. A cooling module according to claim 13, wherein each of the two portions of the cabinet (G) is formed in one piece with an air distributor (70) defined within each of the rear side corners of the housing. respective dogabinet portion (G). 15. Cooling module according to claim 13, characterized in that each of the two portions of the cabinet (G) are formed by two side panels (4) which are subsequently fitted and retained to the extreme side edges of a rear panel (5). , the air distributor duct (70) being incorporated into the structural panel (5) and facing into the respective cooling compartment (1,2). 16.- Forced ventilation type refrigeration apparatus comprising a cabinet (G) which internally defines at least one refrigeration compartment (1,2) closed by a respective front door (la, 2a), characterized in that said cabinet be constructed to receive a refrigeration module (MR) as defined in any one of claims 1 to 15.