KR20110029131A - Cold appliance - Google Patents

Abstract

Cooling appliances, such as domestic refrigerators or freezers, include a cooling module 102 and a cabinet 101. The cabinet is a pre-foamed panel comprising two opposing side wall panels 1, a rear wall panel 4, a top 2 and a bottom 103 which are connected almost perpendicularly to one another, for example by mechanical joints and / or adhesive joints. And door 6 were assembled. The cabinet comprises heat transfer tubes 28, 160 which are arranged in the front frame part of the cabinet of the cold appliance, preferably adjacent the part of the door 6. The heat transfer tube is provided with a boiler portion 172 which is filled with a heat transfer fluid, is closed and arranged to be in thermal contact with the heat generating means 32 of the cooling module to boil the heat transfer fluid.

Description

Cooling appliance {COLD APPLIANCE}

The present invention relates to a cold appliance.

Household refrigeration appliances such as refrigerators, which also include a pantry and wine cooler, and freezers which are in the form of openable cabinets and which are not only mainly for household use, but also for example box-type freezers which can also be used in restaurants and laboratories. When manufacturing simply a cold appliance-it is a common practice to place the place of manufacture closer to the consumer, since the shipping costs are considerable. As a result, relatively many places of manufacture are formed. More precisely, it is desirable to have a few large manufacturing plants and distribute the products from these plants all over the world. In this way it is possible to take advantage of the benefits of mass production. For example, one problem associated with transporting a cold appliance is that the cold appliance corresponds to a large volume product containing a large amount of air, which results in a significant transportation cost per weight. It has been proposed to manufacture the cooling appliance in a modular manner so that the product can be transported in a disassembled state and can be assembled at the installation site or in a nearby store, ie in an assembly plant or other service facility. However, no functional modular system has been developed for such products. This is due to the various requirements the cabinet must meet. For example, the cabinet must be constructed so that it can be easily assembled to form a rigid, resistant cabinet that has good thermal insulation properties and is substantially impermeable to moisture migration as well as having an aesthetically attractive appearance. In addition, the cooling cabinet includes a number of technical devices for performing different functions. When such a device has a current structure, it is difficult to be provided as a module that is easy to assemble and interconnect.

Another problem associated with the manufacture of conventional cooling appliances is that conventional cooling appliances involve high investment costs for the development of production lines and the like. This leads to very poor flexibility regarding the possibility of manufacturing cooling appliances, which are primarily of different dimensions and have a variety of device options in a small series. Typically, new product configurations require a large production series that is feasible for economic reasons. This also leads to manufacturers being reluctant to develop products with new approaches because of the high economic risk of uniform production lines, or otherwise very expensive to produce and purchase more unusual products. .

Another problem with modular refrigeration appliances relates to a method of placing a condensation preventing device in front of the cold compartment (s). In a non-modular cooling appliance manufactured by the prior art as disclosed in US Pat. No. 6,666,043, the condensation preventing device is configured as a heat transfer tube extending along the front frame portion surrounding the cooling chamber (s) of the cabinet. The heat transfer tube is filled with a heat transfer fluid, and the heat transfer tube is provided with a heat exchanger box disposed below the compressor included in the cooling system of the cold appliance. US 6,666,043 describes how the heat transfer tube is actually arranged in the front frame part. There is no information on this, but on the other hand there are no problems associated with the mounting of the heat transfer tubes. On the contrary, when the cold appliance is not completed in the original factory, but is transported to a plurality of members and assembled at the time of arrival, a problem arises how to manufacture a plurality of members to facilitate the assembly.

When constructing a cooling appliance in a conventional manner in which a cabinet is constructed on-site, it is easy to obtain an assembly configured to function. However, when preparing separate parts to be mounted later, a new solution is needed. One problem to be solved relates to a method of obtaining a complex interface between a cabinet and a door, for example when equipped with the above-mentioned condensation preventing device.

In conventional cooling appliances, the evaporator mounted inside the cabinet is formed of a rather flat and rectangular device. The present invention belongs to a variety of cooling applications where the cooling module is a separate module comprising all cooling devices including an evaporator and subsequently assembled with the cabinet. At this time, the cooling air is circulated in the cabinet to cool the food. The air is cooled by being guided through or around the evaporator by a fan, depending on the configuration of the evaporator. At this time, the rather flat shape of the conventional rectangle is not optimal.

Instead of manufacturing cabinet shells, when manufacturing separate cabinet panels that are subsequently mounted and filled with foam, it should be possible and desirable to find a way to automate such manufacture for at least some types of panels involved.

In cooling appliances in which the cooling effect is created by the built-in cooling module and distributed by the air flow inside the cabinet, it is desirable to make the cooling module compact. In order to make the cooling module as compact as possible, it is desirable to arrange the largest parts, ie the evaporator and the compressor, side by side and of course insulated from each other. Due to this arrangement, at least part of the evaporator is arranged below the top of the compressor. This mutual positioning prevents the defrost system, ie the heating of the frost generated on the evaporator and the evaporator to melt the frost, and the evaporation of the water generated by removing the frost and the final water drainage and frost generated. It has a predetermined bad influence on the system to implement. Conventionally, frosted water is evaporated from the area on the top of the compressor when the warm compressor casing heats the water. Water is guided from the evaporator to the region by gravity, using a tube or the like. However, when the evaporator is at least partially disposed below the compressor, this is not a possible solution. As a result, another solution is needed.

Moreover, when the cooling module is placed under the cabinet, which is desirable in many applications, the air conduits which circulate air into and out of the cabinet are lifted through the air conduits which normally carry cold air by natural convection. Hot air can cause heating of the cold compartment of the cabinet when defrosting in the evaporator. A simple solution is to prevent this heat leakage by providing an air conduit with an air shutter that closes the air conduit during the defrost period. The drawback with this solution is that the solution requires the placement of a control device as well as more movable parts, which increases the cost for the cooling module.

In modular refrigeration appliances which require a system for forced air circulation in the cold compartment (s) of the cabinet, it is necessary to circulate the air circulation efficiently.

It is an object of the present invention to solve the above-mentioned problems associated with a condensation preventing system and to provide a cooling device having a condensation preventing device that can be easily mounted.

This object is achieved by the cold appliance according to the invention as specified in claim 1. Advantageous improvements of the cold appliance are achieved according to the dependent claims of claim 1.

Thus, cabinets, doors and cooling appliances assembled from separate cabinet panels comprising two opposing side wall panels, a rear wall panel, a top and a bottom, which are connected almost parallel to each other by a cooling module such as a joint and / or adhesive. In the front frame portion of the cabinet of the apparatus is provided a cooling appliance, such as a domestic refrigerator or freezer, comprising a condensation preventing device comprising a heat transfer tube, which is preferably arranged adjacent a portion of the door. The heat transfer tube is filled with a heat transfer fluid and is closed and provided with a boiler portion, the boiler portion being arranged in thermal contact with the heat generating means of the cooling module for boiling the heat transfer fluid.

By providing the condensation preventing device as an independent unit having a dedicated boiler part arranged to be in thermal contact with the heat generating means of the cooling module, without being interconnected with the cooling system of the cooling device, thereby assembling the cooling device as a whole and mounting the heat transfer tubes. It is easy. In addition, these features make the mounting of the condensation preventing device somewhat different from the mounting of the cooling module. It should be noted that the means for generating heat can be, for example, a compressor, a condenser or a condenser plate of the cooling module. The invention can be practiced in many different ways within the scope of the claims. For example, heat transfer tubes can be formed of different materials, but are preferably metal to achieve good thermal conductivity.

According to an embodiment of the cold appliance, the heat transfer tubes are closed and looped. The heat transfer medium can then be circulated within the heat transfer tube without contacting other corresponding media of the devices of the cold appliance.

According to an embodiment of the cold appliance, the heat transfer tube is a one-way tube with two ends closed. This embodiment provides a much simpler solution to the prevention of condensation.

According to an embodiment of the cold appliance, the cabinet comprises a profiled bar, which is mounted to a front frame portion, for example a front edge of the cabinet panel, and the profiled bar is provided with support means for receiving heat transfer tubes. do. By providing a profiled bar and by providing support means for receiving the heat transfer tube in the profiled bar, the mounting of the heat transfer tube is further improved.

According to an embodiment of the cold appliance, the heat transfer tube is snapped on to the support means, which specifies the ease of mounting. However, other modes of attachment, such as gluing or clamping, can also be considered.

According to an embodiment of the cold appliance, the support means is arranged in the recess of the profiled bar, which ensures that no excess space is used by the heat transfer tubes between the front frame portion and the door. Alternatively, at least one side wall panel is provided with a recess for receiving the heat transfer tube.

According to an embodiment of the cold appliance, the heat transfer tube is covered with an elongated cover member made of metal, preferably for good thermal conductivity, when mounted to the support means. Preferably, the cover member is mounted such that the inner surface is in contact with the heat transfer tube or at least close to the heat transfer tube, and the outer surface of the cover member is part of the surface of the front frame portion of the cabinet.

According to another aspect of the present invention, there is provided a condensation preventing device comprising a heat transfer tube having a boiler portion, the heat transfer tube being filled with a heat transfer fluid and closed. The condensation prevention system is configured to be mounted to the front frame portion of the cabinet consisting of a pre-foamed side wall panel, a rear wall panel, a top and a bottom.

According to an embodiment of the condensation preventing device, the heat transfer tube is closed to form a loop, preferably rectangular. The loop includes a bottom section, a first vertical section, an upper section, a second vertical section and an end section. The upper section is inclined and / or the end section is inclined. This results in a magnetic circulation of the heat transfer fluid in the heat transfer tube, with the inclined section (s) improving the return circulation of the liquid heat transfer fluid.

According to another aspect of the invention, the cabinet further comprises a central section adapted to divide the cabinet into two or more compartments, wherein the heat transfer tube is provided with an intermediate section adapted to be disposed on the front edge of the central section An apparatus is provided.

According to another aspect of the present invention, there is provided an anti-condensation device, wherein an intermediate section is provided in the heat transfer tube, and the front frame portion of the cabinet further comprises at least one central section that divides the cabinet into two or more compartments.

In this way, the condensation preventing device can be arranged in an effective manner on a cold appliance divided into two or more compartments. The heat transfer tubes can be arranged in the front frame opening of each compartment of the cabinet due to the intermediate section tubes disposed on the heat transfer tubes according to this embodiment.

In the following, with reference to the accompanying drawings, an embodiment of a modular cooling device comprising the present invention will be described by way of example.

According to the present invention, a problem of the prior art related to the condensation preventing system is solved, and a cooling device having a condensation preventing device that can be easily mounted is provided.

1a is a partially cut away perspective view of an embodiment of a cooling appliance assembled from a modular unit according to the invention,
1b is an exploded perspective view of the cooling device according to FIG. 1a,
2 is a flow chart schematically illustrating one embodiment of a method of manufacturing a cabinet panel according to the present invention;
3A and 3B are partial cross-sectional views of a first embodiment of a joint between a side cabinet panel and a rear cabinet panel of a cold appliance cabinet, according to AA of FIG. 1A;
3C and 3D are partial cross-sectional views of a second embodiment of the joint according to FIGS. 3A and 3B, along AA of FIG. 1A;
4 is a partial cross-sectional view of a third embodiment of the joint according to FIGS. 3A and 3B, along AA of FIG. 1A, and FIG.
5 is a partial cross-sectional view of a fourth embodiment of the joint according to FIG. 3, along AA of FIG. 1A, and FIG.
6 is a cross sectional view along BB of FIG. 7 passing through the front edge of the sidewall panel, FIG.
7 is a front view of the assembled cabinet, showing the location of the thermal siphon around the cabinet opening by removing the door,
8 and 9 are perspective views of the cooling module viewed from the left rear side and the right rear side, respectively;
FIG. 10 is a partial cutaway view along CC of FIG. 8, seen from above the bottom plate of the cabinet, showing the cooling module mounted to the cooling appliance of FIG. ,
FIG. 11 is a partial cutaway view along DD of FIG. 8, viewed from above the cold section as well as the cold section of the cooling module mounted to the cold appliance of FIG. 1A;
12 is a cross-sectional view from behind of a cooling module mounted to the cooling appliance of FIG. 1A, according to EE of FIG. 9 so as to pass through the evaporator fan, FIG.
FIG. 13 is a cross-sectional view along FF of FIG. 9 to penetrate the evaporator fan from the front side to the rear side of the cooling module mounted to the cooling device of FIG. 1A, FIG.
14 is a view showing an opening of a cabinet of an inner wall disposed with respect to an inner side of a rear wall panel,
FIG. 15 is a cross-sectional view along GG of FIG. 14 to penetrate the rear wall panel and inner wall of FIG. 14;
16 is a perspective view illustrating manufacture of a cabinet panel;
FIG. 17 is a cross sectional view of the front portion of the wall panel and the profiled front bar, taken along BB of FIG. 7, FIG.
18 is a cross-sectional view of the top of an embodiment of a cabinet, along HH,
19A and 19B are perspective views of an embodiment of a cold appliance,
20A and 20B illustrate an embodiment of a joint between cabinet panels, respectively, in a perspective view and a cross-sectional view along the side of KK, respectively;
21 is a cross sectional view of the profiled front bar,
22A to 22D and FIGS. 23A and 23B are views illustrating a modification of the thermal siphon,
24 is a cross-sectional view of a variant of the cooling module, according to FF of FIG. 9,
25 is a partially exploded perspective view of an embodiment of a cold appliance assembled into a modular unit according to the invention and divided into two compartments by a central section.

1A is a partially cut away perspective view of a modular cold appliance, ie a refrigerator or freezer, or a combination thereof; Combination means a refrigeration appliance with a thermal insulation section that divides the cold zone into separate freezer compartments and separate refrigerator compartments. In this embodiment, the cold appliance has a single function of a freezer or a refrigerator. The cooling device 100 includes a cabinet 101 and a cooling module 102 disposed below the inner bottom 103 of the cabinet 101. Although not shown, cooling appliances typically include internal fittings such as shelf supports, shelves, boxes, and lockers, control panels, lighting cables, sensors, and the like.

FIG. 1B comprises a cabinet 101 consisting of two sidewall panels 1, an upper panel 2, and a plurality of cabinet panels consisting of a lower rear wall panel 3 and an upper rear wall panel 4. An exploded perspective view of a modularly configured cooling device 100, which also includes a door 6 and a cooling module 102 necessary for obtaining a cooling effect, including, for example, a compressor, a condenser, an evaporator, a fan, and the like. do. The cooling module 102, described in more detail below, is formed as a self-contained or stand-alone module that can be easily mounted to the cabinet 101 and connected to a mains power source. In this embodiment, the cooling module 102 is disposed at the bottom of the cabinet 101. The cooling module 102 has a bottom plate 31, which is also the bottom plate of the entire cooling device. The cabinet is supported by the bottom plate 31. More specifically, the side wall panel 1 can be mounted on the bottom plate 31. The bottom plate 31 also comprises a wheel, ie a roller, or alternatively is combined with a roller 110, ie a leveling foot. The lower rear wall panel 3 is openable or detachable in order to make the cooling module 102 accessible for repair purposes. In a variant, the cooling module is arranged in a different position in the cabinet, for example on top. In another embodiment, the cabinet is provided with a separate bottom panel constituting the interior floor, while the cooling module is disposed below the interior floor while being retractable or accessible for repair. Thus, the top and bottom boundaries of the cabinet can be defined as top and bottom portions, since these top and bottom boundaries can be separate panels or parts of other structures such as cooling modules. .

In another embodiment, the cabinet 116 is assembled from a top panel, sidewall panel, backwall panel, and bottom panel, as shown in FIGS. 19A and 19B, and the cabinet 116 has a cabinet disposed below the cabinet 116. A bottom connection element 121 is provided for connecting with the cooling module 118. In order to facilitate repair of the cooling module 118, specifically the cold section 34, the bottom panel of the cabinet 116 is provided with a hatch 120, which is shown in an open state.

In the embodiment of the cooling appliance shown in FIGS. 1A and 1B, the door 6, the top panel 2, and the inner bottom panel 103 are used in the art, such as conventional in situ foaming. While manufactured by the conventional method, the side wall panel 1 and the rear wall panels 3 and 4 are manufactured by the method described in more detail below. However, it should be understood that in the variant also one or more of the door 6 and the top panel 2 as well as the inner bottom panel 103 can be manufactured according to the method according to the invention.

Preferably, the panels 1, 2, 3, 4, 103 are interconnected using a fixing agent, ie an adhesive, which provides a strong and bonded joint. In addition, the adhesive joints provide thermally good properties. In addition, the binding of the adhesive joint ensures that the hygienic level of the cold appliance, which typically contains the food, is high. A reinforcing fitting 5 is mounted at the edge between the side wall panel 1 and the top panel 2 as well as between the side wall panel 1 and the inner bottom panel 103. The reinforcing fitting 5 is attached to the surface or attached using a suitable fastening element. The reinforcement fitting 5 preferably gives strength to the cabinet 101 during use as well as during the curing of the adhesive used to attach the panels to each other. Reinforcement fittings are also utilized as reinforcement parts for attaching door hinges and the like, for example. However, it should be noted that it is not necessary to add reinforcing fittings as described further herein. The cabinet can also achieve sufficiently high stability without reinforcing fittings.

According to the embodiment described and illustrated herein, the side wall panels 1 and the rear wall panels 3, 4 of the cabinet are formed by a panel manufacturing method as illustrated by the schematic flowchart of FIG. 2. Top sheet material and bottom sheet material, such as metal sheet 8 and plastic sheet 9, metal sheet 8 and metal sheet 9, or plastic sheet 8 and plastic sheet 9 at the inlet end, respectively From the upper sheet roller and the lower sheet roller to the sheet forming and foam molding application device. When the sheet layers are fed from the inlet end to the outlet end, they initially remain somewhat distanced from each other. In the first profiling station 10, the sheet bends the longitudinal edge inward, for example at right angles to the rest of the sheet, as described in more detail below, and for example to obtain the embodiment described above. Profiled to the desired profile, such as forming grooves by bending the sheet inwardly, or forming ribs by bending the sheet outwardly. Subsequently, in the foam molding station 11, a continuous double belt foam molding process is performed. The continuous double belt foam molding process is such that a web of sheet material passes through the foam molding station 11 and a desired amount of thermally insulating foam, such as polyurethane foam, is distributed over the lower sheet surface in the space between the sheet layers. Is done. Thereafter, sandwich layers of desired thickness are formed in close proximity to each other. The foam is then cured at curing station 12. The continuous sandwich web is then cut into cabinet panels of the desired length at the cutting station 13. In the cutting station 13, the sheet and the foam can be cut to different lengths, which is advantageous for mounting purposes as described below. Thereafter, the panel is cooled 14. The cooling process is controlled to prevent the panel from warping. Any additional attachment parts, such as assembly fittings, shelf supports or profiled bars, are mounted on the cooled cabinet panel along one or more edges, ready for subsequent assembly to form a transport and cooling appliance cabinet. The cabinet cabinet 15 can be obtained.

As an alternative, the sheet material is prepared to mount the additional attachment part in a later step before the foam molding process. Accordingly, the sheet material is provided with boring or the like used for mounting the attachment component. Optionally, the sheet material is provided with a fastening element, such as a reinforcing element, a screw sheet, or the like, on its surface facing the interior of the cabinet panel. During the subsequent foam molding process these fastening elements are embedded by foams.

Panel manufacturing methods are beneficial in many ways. For example, the energy requirements for cold appliances are high and will probably increase even more in the future. Using the above panel production method, it is ensured that the cavity is filled with foam. Concerns about bubbles and unfilled cavities are reduced compared to conventional injection molding. In addition, the thermal insulation properties are higher. It is possible to select a predetermined orientation of the foam. All of these advantages minimize the thickness of the insulating material, ie the foam, and thus the panel.

As most schematically shown in FIG. 16, in a variation of the panel manufacturing method, the profiled bar 23 is inserted along at least one of the edges of the sandwich web 60. This profiled bar 23 will be further described in conjunction with FIG. 6 below. Accordingly, in the foam molding station, the foam 17 is applied between the upper sheet 8 and the lower sheet 9 and the upper sheet 8 is formed by, for example, the forming roller 61 as indicated by the dotted line in FIG. 16. When approaching the bottom sheet, a profiled bar 23 is applied from and attached to the side of the sandwich web 60. The attachment can be made in many different ways, with the preferred attachment being described below. However, profiled bar 23 with long ribs typically extending along the length of profiled bar 23, entry into grooves formed in a portion of one of the sheets, and profiled bar 23 and parenteral The contact by the adhesive between the foamed foams 17 is combined. An advantage of this embodiment is that the time taken to mount the cabinet is reduced.

When assembling the cabinet, the cabinet panels can be connected to each other in various ways. Such connection methods include, for example, bonding, screw fitting and riveting. Preferably, the outer sheet layer 8 is a painted metal sheet, whereas the inner sheet 9 is a plastic sheet, but other variations such as both the inner and outer surfaces are plastic sheets or metal sheets are also contemplated. 3 to 5 different exemplary embodiments of joints between sidewall panels and backwall panels are disclosed. One common feature of both the joints disclosed in FIGS. 3 and 5 is that the outer sheet 8 of at least one of the sidewall panels 1 extends beyond the edge of the foamed molding material 17, as described above. In the manufacture of a panel as described above it is bent over the edge surface to cover the edge surface of the foamed molding material in whole or in part. The extending edge of the sheet 8 provides an attachment area for attachment of neighboring panels, whereby the side wall panel has a sheet layer joining area for the connection between the side wall panels 1, the sheet layer joining area being It can be utilized to obtain a resistive bond by adhesion and / or screwing of the side wall panels 1 to each other. Within this general idea, the joint can be realized in a wide variety of ways, and four different exemplary embodiments are disclosed in FIGS.

In FIG. 3A showing the side wall panel 1 and the back wall panel 4 before being joined, the outer metal sheet 8 of the side wall panel 1 extends beyond the longitudinal edge surface 16 and is longitudinal edge surface. While bending over (16), the inner plastic sheet 9 terminates at a distance from the same longitudinal edge surface such that the foam 17 is exposed along the edge 16a at the inner side. On the other hand, the rear wall panel 4 is provided with an extension 18 of the outer metal sheet 8, but is not bent over the edge surface. Instead, the metal sheet is kept protruding from the edge surface. Thus, when connecting two wall panels 1, 4 perpendicular to each other, an overlap is formed between the outer metal sheets 8, so that the two wall panels preferably form the wall members while the adhesive is cured. It can be connected to each other by bonding in combination with screwing which secures together. In FIG. 3B, the side wall panel and the rear wall panel are joined. The foam contact surface 16a to the foam contact surface 56 are also suitably joined to one another for bonding purposes on the one hand and for airtight and watertight joints on the other hand. Foam to foam contact between cabinet panels prevents the formation of any thermal bridges from the inside to the outside of the cabinet. However, as shown in Figs. 3C and 3D, the inner sheet of the side panel extends by a predetermined distance, the inner sheet of the rear wall panel extends by a predetermined distance beyond the edge surface and is rolled over the edge surface, increasing the bonding strength. It is also contemplated to glue these inner sheets together to make them.

Thus, in FIGS. 3C and 3D, in addition to the joints of FIGS. 3A and 3B, the inner sheet 55 of the rear wall panel 4 is bent over each individual longitudinal edge surface 56, 57, thereby A joint covering a portion of the longitudinal edge surface is disclosed (see FIG. 3C). In FIG. 3D, the inner sheet 9 of the side wall panel 1 extends with the inner sheet 55 of the rear wall and is attached to the bend of the inner sheet 55 of the rear wall. This particular sheet to sheet bonding increases the strength and stability of the cabinet.

In FIG. 4, a joint is disclosed in which the outer sheet 8 of the side wall panel 1 extends beyond the edge surface and bends a certain distance above the edge surface 16 as well as above the inner surface. In addition, the outer sheet 8 of the rear wall panel extends a certain distance beyond the edge surface and is bent over the edge surface. Further, both the side wall panel and the rear wall panel are each provided with elongated grooves 19 along the contact area between the wall panels on the edge surface and the outer surface, respectively, each groove forming the outer sheet 8 with the foam material 17 By molding to bend into). These elongated grooves are utilized for connection using a connection strip 20, preferably made of plastic, which has a shape that engages the grooves and is provided with two spaced rib portions inserted into the grooves for joining the wall panels together. do. The fastening of the connecting strip and the grooves can be made, for example, by snap fit connection, gluing or screwing, preferably by a combination of two or more of them. In addition, the joining area provided by the bending of the outer sheet in the contact area between the wall panels is utilized for bonding by bonding to increase the strength.

In Fig. 5 another embodiment of a joint between cabinet panels is disclosed. In FIG. 5, similar to the embodiment of FIG. 4, the outer sheet 8 of the side wall panel extends a predetermined distance above the edge surface 16 as well as the inner side, while the outer sheet of the rear wall panel 4 Extends a predetermined distance above the edge surface. However, no groove is provided on the outer side of the cabinet. Instead, a long groove 21 is provided in the edge surface of the rear wall panel, ie the contact surface between the wall panels, by bending the outer sheet into the foam material 17. On the other hand, the side wall panel 1 is provided with an elongate rib 22 by bending the outer sheet outward in the contact surface between the wall panels. By snap-fitting the ribs into the grooves with adhesion, a secure connection of the wall panels is achieved.

According to another embodiment of a joint between cabinet panels as shown in FIGS. 20A and 20B, the edge portion 124 of the outer sheet of the sidewall panel 122 is bent to retract the rear edge surface of the sidewall panel 122. Cover it. Long grooves 126 were formed in the edge portion 124. The groove 126 is wider at the bottom of the groove than at the top of the groove. The outer sheet 128 of the back wall panel 132 has an edge portion extending beyond the edge surface of the foam material 134 of the back wall panel 132. The edge sub-part 130 of the edge of the outer sheet 128 of the rear wall panel 132 has a shape corresponding to the groove 126, more specifically at least one side wall of the groove 126. The bottom wall and, in this embodiment, a portion of the other sidewall of the groove 126 were also curved in the shape that follows. The edge sub portion 130 is received in the groove 126 to lock the back wall panel 132 in the side wall panel 122 because the groove 126 narrows from the bottom of the groove toward the opening of the groove. to be. The edge surface of the back wall panel 132, in particular the edge surface of the foam, abuts against the inner sheet 136 of the side wall panel 122.

All of the wall panels described in connection with FIGS. 3 to 5, wherein the extended outer sheet protrudes or bends a predetermined distance over the edge surface with grooves or ribs and also over the inner surface are double belt foamed moldings as described above. It can be produced in a continuous process including a process.

The top panel is preferably attached to the side wall panel and the rear wall panel by adhesion. In this way, the stability of the cabinet is increased and airtightness and watertightness are ensured. The joint may be formed according to the embodiment disclosed in FIGS. 3-5 but other methods are of course also possible. For example, as shown in FIG. 18, each side wall panel 1 is provided with a machined top groove 114 that forms a support on the inner side of the side wall panel 1. The top panel 2 is received in each groove 114 and supported at the support.

It is sometimes desirable to form a separate intermediate wall panel in the cabinet, for example, to divide the space into two different compartments with separate doors to form separate freezer compartments and refrigerator compartments, or to place a fixed shelf inside the compartment. . At this time, it is also advantageous to glue the intermediate wall panel or stationary shelf to the inner surface of the cabinet. In the embodiments described and illustrated herein, the cooling module forms the bottom of the cabinet, preferably the cooling module is bonded to the side wall panels and the back wall panels.

Reference is now made to FIG. 6, which shows, in cross section, a portion of the front frame portion of the cabinet, ie a portion of the cabinet that surrounds the opening of the cabinet and defines the opening of the cabinet. In this figure, the cabinet is provided with a profiled bar 23, preferably made of plastic. The profiled bar 23 is arranged on the front frame portion, ie the profiled bar 23 extends around the opening of the cabinet as shown in FIG. 7. The profiled bars can be attached by adhesives or the like or in different ways as described below. Profiled bars have many uses. In particular, the profiled bar serves as the contact surface of the door and reduces the leakage of heat from the atmosphere to the cabinet. As is apparent from FIG. 6, the profiled bar 23 has a rectangular basic cross-sectional shape. The profiled bar 23 comprises two separate recesses or chambers 24, 25, one of which is adapted to be filled with foam to prevent the ingress of moisture from the outside. It is arranged closer to the inner sheet 9 than the remaining chamber 25. In a variant, the first mentioned chamber is not filled, ie filled with air, while the end of the profiled bar is sealed. The remaining chamber 25 is not filled and is covered with a removable long cover member 26, preferably made of steel, so that the chamber 25 can function as a magnetic lock by interlocking with a magnetic strip on the door. The cover member 26 is substantially L-shaped in cross section and further covers the outer portion 91 of the profiled bar 23. At the inner side 92 on the opposite side of the profiled bar 23, the wall of the profiled bar extends by a protruding lip or wing 93 covering a portion of the inner sheet 9, and the protruding lip extends into the profiled bar ( It covers the transition between the rear wall of the 23 and the inner sheet 9, which is a hygienic solution. Inside the chamber 25, an elongated support means, ie holder 27, is U-shaped in cross section for the thermosiphon tube 28 described below. For the attachment of the profiled bar 23, the outer sheet 8 of the wall panel extends beyond the edge surface of the wall panel 8 and bends a certain distance above the edge surface. The extension of the outer sheet 8 forms an elongated groove 29 in the sub portion of the extension that is curved inwardly into the foam material 17. On the other hand, on the rear side of the profiled bar 23, an elongated rib 30 is formed which extends along the length of the profiled bar 23 and fits into the groove 29. Thus, the profiled bar 23 can be mounted firmly and watertightly to the front edge of the wall panel by bonding and by snap-fitting the ribs 30 into the grooves 29.

The thermosiphon tube, ie the heat transfer tube 28, is a condensation prevention system which is a front frame heating system which is arranged to prevent condensation on a cold surface close to the door of the cold appliance or in other areas of the cold appliance where condensation may occur. Part of the device. In the illustrated embodiment, the heat transfer tube 28 is closed in an endless loop as shown in FIG. 7 with the cover member 26 not yet mounted and is disposed around the opening of the cabinet. The U-shaped holder 27 makes it easy to snap-fit the tube 28 to the holder 27 adjacent to the outer edge of the profiled bar 23 when assembling the cold appliance. Thereafter, the cover member 26 may be mounted by engaging one edge portion 94 of the cover member 26 around the rear edge of the outer portion 91 of the profiled bar, the opposite side of the cover member 26. The curvature in the edge 95 can be snap-fit into the groove 96 of the profiled bar 23 inside the open chamber 25. In this way, the thermal siphon tube 28 is arranged in contact with the cover member or at least close to the cover member 26 for heat transfer between the thermal siphon tube and the cover member. The thermosiphon tube 28 is filled with a suitable refrigerant and mounted in thermal contact with the heat source of the cooling module at the bottom of the cabinet or at any other hot portion of the cabinet. The heat source is typically a condenser tube or compressor shell, or in this embodiment, as shown in FIG. 10, in which the condenser tube 32 is arranged meandering on top of it to form the bottom of the cabinet and increase cooling. Metal condenser plate 31. The heat source may also be circulating hot air exiting the condenser or electric heater. A boiler (eg see 176 in FIG. 22) of the thermosiphon tube 28 is disposed on the condenser plate 31. Due to the high temperature of the condenser plate, the refrigerant in the thermosiphon tube 28 absorbs heat from the condenser plate 31 as it passes through the boiler, and at a certain temperature level, the refrigerant in the boiler evaporates and begins to circulate in the thermosiphon tube. do. When the coolant reaches the low temperature region around the door, it is again condensed into liquid and releases heat to the surrounding parts, thereby preventing condensation and possible frost between the door and the front frame of the cabinet. As soon as the coolant condenses, it flows back to the lower section of the cabinet and again absorbs heat from the condenser plate. There are many different shaped profiled bars, one of which is shown in FIG. The profiled bar 80 according to this embodiment is typically mounted at the longitudinal edge of the wall panel 66, along with manufacturing the panel using the panel manufacturing method as described above. In this variant, the extension of the outer sheet 68 of the wall panel 66 is bent such that the first sub-part 70 of this extension is bent over the edge of the wall panel and extends parallel to the edge of the wall panel, The second sub portion 71 adjacent the first sub portion and proximate the edge at the edge of the outer sheet 68 is further bent to extend rearward in parallel with the outer sheet 68, and finally the outer sheet 68. The third sub-part, including the edge of), extends in parallel with the first sub-part toward the inner sheet 69. At this time, the inner sheet has an extended edge portion 73 that is bent over a portion of the edge of the wall panel 66 and is aligned with the third sub portion 72. There is a gap between the edge of the outer sheet 68 and the edge of the inner sheet 69. The cross-section of the profiled bar 80 is mainly rectangular and has a width corresponding to the distance between the outer surface of the outer sheet 68 and the second sub-part 71, and the first sub-part 70 and the third sub-part ( 32) has a significant depth corresponding to the distance between. In addition, the profiled bar has a T-shaped rib 81 that extends along the length of the profiled bar 80 and protrudes into the foam 67 through the space from the rear wall 82 of the profiled bar. . The profiled bar also includes a lip 83 extending along the profiled bar 80 and extending from the rear wall 82 of the profiled bar, although the lip is substantially L-shaped and the rear wall. It extends in parallel with 82 and has a major portion forming a slot with rear wall 82. The edge portion 73 of the inner sheet 69 is received in the slot. Rib 81 and lip 83 ensure that profiled bar 80 is properly attached to wall panel 66. As with the embodiment described above, the profiled bar has two main chambers. One chamber 84 is closed as described above with another embodiment, filled with foam, filled with air, and has a sealed end, while the other chamber 85 is open, but chamber 85 The opening is shielded by a metal strip 86 that functions as a lead. In connection with the embodiment described above, the open chamber 85 accommodates a thermosiphon tube 87.

Another embodiment of the profiled bar 140 is similar to the profiled bar 23 described above with reference to FIG. 6. Thus, for example, the profiled bar includes two chambers 142, 144, a U-shaped holder 146 for receiving a thermosiphon tube, and a first wing 148 inside the profiled bar 140. . However, the profiled bar, for example, is different in that there is no rib in the rear wall of the profiled bar and an additional second wing 149 is arranged on the opposite side of the first wing 148 on the outside of the profiled bar. The second wing 149 is arranged to cover the edge of the outer surface and thus the edge of the outer sheet, the edge of the panel, and at the same time the transition between the outer sheet and the bar 140. This profiled bar 140 preferably has a flat rear face that is attached by an adhesive to the edge surface of the panel.

There are many other shapes of anti-condensation devices or thermal siphon tubes, some of which are illustrated in FIGS. 22A-22D and FIGS. 23A and 23B. Accordingly, as shown in FIG. 22A, the condensation preventing device is composed of a substantially rectangular heat transfer tube 160 composed of a loop. The condensation prevention system is arranged to be mounted to the front frame portion of the cabinet as described above. The loop includes a bottom section 162, a first vertical section 164, an upper section 166, a second vertical section 168 and an end section 170. The loop further includes a boiler portion 172, which is connected between the end section 170 and the bottom section 162 and is disposed at the lowest portion of the thermosiphon tube 160. In fact, the loop has a first tube section 174 configured to be mounted to extend downwards and toward the inside of the cooling module disposed below the cabinet. Even the boiler 176, which is an extended section of the thermal siphon tube 160, that is, has a larger cross-sectional area than the rest of the thermal siphon tube 160, is arranged to be in thermal contact with the heat source of the cooling module as described above. From the boiler 176, a second tube portion extends upwardly outward of the bottom section 162. The upper section 166 and the end section 170 are only slightly inclined by an angle of 1 degree or a slight degree. The angle is extremely exaggerated in the drawings for purposes of illustration. In practice, these tube sections are configured to remain within the thickness of each of the front edge of the top panel and the bottom panel of the cabinet. The inclination of the upper section and the end section has the purpose of guiding the heat transfer fluid converted from the gas state to the liquid state in the vertical direction while being transferred through the heat siphon tube 160. In the embodiment shown in FIG. 22B, the boiler 176 is disposed on one side of the heat transfer tube 160. The loop includes a bottom section 162 disposed directly on the boiler 176, a first vertical section 164, an upper section 166, and a second vertical section 168 directly connected to the boiler 176. . In this manner, heat transfer tube 160 may be configured to have a small number of bends in loop 160. In the embodiment shown in FIGS. 22C and 22D, the heat transfer tubes 160 are disposed with respect to a cooling device having two (or three or more) compartments, so that the heat transfer tubes 160 have respective compartments. A separate opening is provided (see FIG. 25). In the embodiment shown in FIG. 22C, the loop 160 of the heat transfer tube has an intermediate section 165 connecting the first vertical section 164 and the second vertical section 168 disposed below the upper section 166. Prepared. The middle section 165 may be slightly inclined by an angle of one or several degrees (not shown). The intermediate section 165 is adapted to be disposed on the front edge of the central section 7 when it is disposed in the front opening of the cold appliance. In the embodiment shown in FIG. 22D, the condensation preventing device is divided into a loop of two separate heat transfer tubes. The first loop 160 is arranged to surround the first opening of the cooling appliance, and the second loop 160 ′ is to surround the second opening of the upper section of the cabinet of the cooling appliance illustrated in FIG. 25. It is. The loops 160, 160 ′ of the two heat transfer tube tubes are arranged so that the heat source for the second loop 160 ′ is the upper section 166 of the loop 160 of the first heat transfer tube. Thermal contact with each other by connecting means 167 on 160 '.

According to another embodiment, as shown in FIG. 23A, the condensation preventing device 180, 190 is configured as a one-way tube having two closed ends. Boilers 182 and 192 are formed at one end. As shown by the arrows in the figure, the gaseous heat transfer fluids 180, 190 rise through the heat transfer tubes, condense on top of the heat transfer tubes 180, 190, and form the same heat transfer tubes 180, 190 in a liquid state. Through the boiler unit 182, 192 is returned back. The embodiment illustrated in FIG. 23B is arranged for a cold appliance with two (or more than three) compartments, thus providing a separate opening for each compartment (see FIG. 25). The unidirectional heat transfer tubes 180, 190 are provided with intermediate sections 180 ′, 190 ′ arranged relative to the central section 7 to divide the cabinet into separate compartments. The intermediate sections 180 ', 190' may be slightly inclined by an angle of one or several degrees so that the refrigerant fluid may be returned downward to the boilers 182, 192, and not trapped in the intermediate sections 180 ', 190'. Can be. In the drawings, the angle is exaggerated to the maximum.

For the more detailed description of the cooling module 102 of the so-called dynamic cooling type which is then sent to the cold compartment 104 of the cold appliance 100 in which the cold object is stored after the cold air has been produced, see FIG. 1A and FIG. See not only FIG. 1B but also FIGS. 8 to 13. With this configuration, no evaporator coil is required inside the cold compartment 104, which facilitates assembling the cold appliance from the modular unit. The cooling module 102 is divided into a low temperature section 34 and a high temperature section 35, which sections are separated by an insulating wall 105. The cold section 34 is disposed substantially on half of the cooling module 102, while the hot section 35 is disposed adjacent to the cold section and is also the lowest of the cooling module 102 below the cold section 34. Contains wealth. The cold section 34 bears in particular the evaporator 33 and the first fan 42 mounted on the rear side of the evaporator 33, ie the side facing the rear wall 4 of the cold appliance 100. The cold section 34 also has an outgoing air conduit 43 connected to the fan at its rear side and extending in a curved manner to open upward, and the front side of the evaporator 33 from the rear end of the cooling module 102. And an inlet air conduit 44 extending adjacent to the outlet air conduit 43. The first fan 42 passes through an evaporator 33 that cools the air and exits the effluent air conduit 43 to produce an air flow towards the cold compartment 104. Return air flows back from the cold compartment 104 into the evaporator 33 through the inlet air conduit 44 and / or through the inlet opening 45 at the front end of the cooling module 102. In cooling equipment, which is a freezer with a single compartment, the inlet opening 45 at the front end is typically used, whereas in cooling equipment with a freezer compartment and a freezer compartment, the front inlet opening 45 is typically used by a freezer compartment. It should be noted that inlet air conduit 44 is used by the refrigerator compartment. Especially for the air circulation problem, the cooling appliance 100 is provided with a rear wall lining 50 as shown in FIGS. 14 and 15. The rear wall linings 50 are arranged on the inner side of the rear wall panel 4, for example by snap mounting or bonding, and are preferably curved in the outward direction from the center, i.e., toward the front of the cold compartment 104, to the rear wall linings. It consists of a sheet which forms a space between the 50 and the back wall panel 4. However, in a variant, the rear wall lining is flat but arranged at a distance from the rear wall panel to form the space. The rear wall lining 50 is a cold air conduit 51 and a hot air conduit 52 disposed in the space, and an inlet air exhaust port distributed over the rear wall lining 50 and in communication with the cold air conduit 51. 53a) and an outlet air exhaust port 53b disposed below the inlet air exhaust port 53a and in communication with the hot air conduit 52 and disposed at the lowermost portion of the rear wall lining 50. In a variant, the air vents 53a and 53b are arranged differently or connected differently to each of the cold air conduit 51 and the hot air conduit 52. The air conduits 51, 52 are hidden behind the rear wall lining 50 sheet, in a space obtained between the outwardly curved portion of the seat of the rear wall lining 50 and the rear wall panel 4. The cold air conduit 51 is engaged with the end of the outlet air conduit 43, and the hot air conduit 52 is engaged with the inlet air conduit 44.

Accordingly, the air circulation is as follows. Cooling air flows from the evaporator 33 through the first fan 42 through the outlet air conduit 43, the low temperature air conduit 51, and the inlet air exhaust port 53a to the low temperature chamber 104. Air is distributed throughout the interior space of the cold compartment 104. Within the cold compartment 104, internal portions, such as shelves (not shown for clarity), contribute significantly to the guidance and mixing of the air. Wet, slightly hot air is forced from the cold compartment 104 to the evaporator 33 via the outlet air exhaust port 53b via the hot air conduit 52 and the inlet air conduit 44. Optionally, front inlet opening 45 is also used for wet return air. However, the front inlet opening 45 is mainly used in the case of a cooling appliance with a refrigerator at the top separated from the freezer, in which case the front inlet opening 45 directs air only from the freezer to the cooling module 102. .

Other solutions exist for air return including different arrangements of vents, differently formed linings or other solutions for air distribution in cold compartments, different arrangements of air conduits in cooling modules and the like, which are understood by those skilled in the art. In addition, a portion of the hot air exhausted from the cold compartment may be let out of the rear side of the cold appliance to prevent condensation at the rear of the cold appliance. However, the exemplary embodiments described herein are advantageous and are presently preferred.

The rear wall lining 50 has other purposes in addition to distributing the cold air to the cold compartment 104 through the air vents 53a and 53b, as well as providing an opportunity to blow hot air out of the cold compartment 104. . For example, the back wall lining 50 may have an aesthetic purpose. Since the rear wall panel 4 is manufactured by the manufacturing method of the present invention, it may be difficult to change the appearance of the inner surface, and the rear wall lining may also be produced during assembly, especially at the inner edge of the cabinet 101. It can be used to cover the defect of. The rear wall lining 50 may also be utilized for other types of devices, such as lighting and control means, or to hide the wiring used for such components, and the rear wall lining also has a support for a shelf inside the cabinet. Can be prepared. In the illustrated embodiment, the shelf support 59, which is provided for flexible placement of the shelf, is disposed on the inner side of the cabinet 101.

The cooling module 102 is in particular a compressor connected to the output of the evaporator 33 and a condenser tube 32 which is connected to the output of the compressor 36 as well as to the input of the evaporator via a pressure reducing valve as is commonly known. It further comprises a high temperature section (35) for holding a). The connection of the cold section 34 and the hot section 35 is through a properly sealed through hole through the insulation wall 105. The high temperature section 35 also carries a second fan 37, which is arranged in front of the compressor 36 at the front of the high temperature section 35.

The compact cooling module 102 sets stringent requirements for the different solutions involved. One such solution relates to the condenser tube 32. Despite the limited space, condenser tube 32 must be cooled efficiently. The condenser tube 32 has an extended length and meanders in one or more layers on the metal bottom plate 31 to increase cooling. The condenser tube 32 is used as much of the area of the bottom plate 31 as possible, thereby extending in part below the cold section 34 in particular. This condenser tube-plate structure is particularly advantageous in that there is no need to use a special cooling flange, and in that the entire area of the cooling structure is large compared to the volume occupied thereby. In operation, air flow is withdrawn by the second fan 37 through an inlet 38 at the lower front of the cooling module 102 as best shown in FIG. 1. Air flows from the inlet opening 38 above the bottom plate 31 to the rear of the cooling module 102 at the compressor circumference 36 and to the curved vertical pin 39 disposed at the rear of the hot section 35. Guided around the partition wall 40 so that air flows toward and exits through the outlet opening 41 arranged side by side with the inlet opening 38 at the lower front of the cooling module 102. . These openings 38, 41 are arranged below the door 6 of the cold appliance 100. The partition 40 extends rearward from the front wall 106 of the cooling module 102 by a predetermined distance between the inlet opening 38 and the outlet opening 41 to open the opening to allow air to pass through the fin 39. Leave

As is evident from the figure, and as described above, the cooling module 102 includes an evaporator 33 to limit heat transfer between the hot section 35 and the cold section 34 and the cold compartment 104 of the cooling module 102, respectively. ) Is well insulated with respect to the cold compartment 104.

In a cooling appliance in which the cooling effect is produced by the built-in cooling module according to the magnetic receiving type described and illustrated herein and distributed by the air flow inside the cabinet, it is desirable to make the cooling module compact. In the illustrated embodiment, this causes at least a portion of the evaporator 33 to be disposed below the top of the compressor 36. This is necessary for the defrosting system, i.e., the heating of the evaporator 33 for melting frost and frost formed on the evaporator, and the system for performing the evaporation of the water generated by removing the defrost and the final water drainage and defrosting. Adversely affects. Typically, frosted water is evaporated from the area on the top of the compressor when the warm compressor casing heats the water. Water is guided from the evaporator to the region by gravity, using a tube or the like. However, when the evaporator is at least partially disposed below the compressor, this is not a possible solution. In order to solve this problem in the present embodiment, a condenser is configured as a condenser plate, which is also meandered on the condenser plate 31 for the purpose of cooling, the length of the condenser tube as shown in FIG. It is a bottom plate 31 made of a metal having a refrigerant conduit 32 placed therein. In this way, it is possible to remove the defrost so that the resulting drainage flows out to the condenser plate 31 or into the drainage tray 46 arranged on top of the condenser tube 32 as in this embodiment. This increases the cooling effect of the condenser plate when the drainage evaporates.

In the cooling module according to the magnetic receiving type described and illustrated herein, cooling is achieved by dynamic cooling which causes the cold air to circulate in the cold appliance to cool the article stored in the cold compartment. The air is cooled by passing through the evaporator 33, and the first fan 42 is used to blow out the air through the evaporator 33. For the purpose of increasing the cooling capacity of the cooling module 102, the shape or shape of the evaporator 33 and the first fan 42 are adjusted relative to each other. In the illustrated embodiment, the evaporator 33 has a substantially square cross-sectional shape in a direction perpendicular to the air flow and the maximum cross-sectional dimension is only slightly larger than the diameter of the fan. This is best shown in Figures 11-13. In this way, the dimensions of the evaporator 33 and the fan 42 are advantageously adjusted relative to each other such that the air flow is distributed substantially uniformly over the cross section of the evaporator. Thus, the evaporator 33 is utilized in an optimal manner. Basically, an evaporator with a circular cross-sectional shape is the most optimal and variant, but this will probably make the evaporator more expensive. However, it should be understood that the evaporator may be slightly rectangular. In general, it is also contemplated that the maximum width dimension or the maximum height dimension of the evaporator should be less than 20% greater than the diameter of the fan, preferably less than 10% greater than the diameter of the fan. Evaporators that operate efficiently must be able to reduce their overall dimensions, which is always beneficial and special for a cooling module as in this embodiment.

Household cooling appliances of the dynamic cooling type as in this embodiment will typically cause a significant amount of frost and freezing on the surface of the fins of the evaporator 33. The return air flow from the cold compartment, in particular the cold compartment of the refrigerator, is relatively hot and humid, and when this air reaches the cold evaporator, the moisture of the air will form frost and freeze on the evaporator. In order to avoid this problem or at least reduce this problem, a preliminary removal plate 47 is disposed above the evaporator, as shown in FIG. 13, in contact with the evaporator 33. The defrost plate forms the bottom of the inlet air conduit 44. A relatively hot and wet return air stream from the low temperature chamber is conveyed on the other side of the defrost plate 47, ie on the upper side, to the evaporator 33. This is because most of the moisture content of the air condenses and freezes on the stripping plate before it reaches the evaporator 33, and the air flow through the evaporator 33 is due to the frost deposits within the fin spacing of the evaporator 33. It should be implemented to reduce the risk of blocking. In addition, it is possible to arrange the pins closer to each other, i.e., with a narrower gap than without the pre-removal plate 47, without the risk of blocking the gap. This results in a smaller evaporator. As is apparent from FIG. 13, not only the evaporator 33 but also the pre-defrost plate 47 are inclined downward toward the front end of the cooling module 102. When the evaporator 33 is heated automatically for frost removal, usually carried out at appropriate intervals and usually achieved by electrical heating, the water produced by removing the frost from the prefrost strip is removed from the frost from the evaporator. Along with the water generated by the water, it flows forward and downward to the water collecting plate 48 of the water formed by removing the frost, which can also be seen in FIG. The collecting plate 48 is disposed slightly inclined forwardly under the evaporator 33, the collecting plate 48 is provided with a lower rim along its edge, and at its front end a hole 49 connected to the drain pipe 112. ) Is prepared. Through the drain pipe 112, the water generated by removing the frost flows down to the drainage tray 46 disposed on the condenser plate 31, as mentioned above, so that the water generated by removing the frost is passed through the condenser. It can be evaporated by the heat from the tube 32. In order to ensure that hot air from the hot section does not enter the cold section upward through the drain pipe 112, a check valve 113 is provided in the drain pipe 112 as shown most schematically in FIG. 12.

According to a variant of the cooling module as shown in FIG. 24, the pre- defrosting device 150 comprises a first end 153 and a second end 155, wherein air from the cold compartment is transferred to the second end ( Passing through the first end 153 prior to 155, the first end is disposed at a distance from the main inlet to the evaporator 151. In other words, the predefrost device 150 covers most of the top surface of the evaporator 151 but does not cover the entire top surface as in the first embodiment of the defrost device. Thereby, the air enters the evaporator structure not only from the front end of the evaporator but also from the top of the evaporator after passing through the defrosting device 150.

During defrosting of the evaporator 33, the leakage of heat into the cold compartment 104 is usually a significant amount due to the air circulation in the air path 43, 44. If the evaporator is in the lowest position of the cabinet as in this embodiment, this risk is even more evident by the convection of air. One way to limit this heat leakage is to provide an air conduit with an air shutter that closes the air conduit during defrosting. The drawback with this solution is that the solution requires the provision of more mobile parts as well as control devices, which of course increases the cost for the cooling module. Another drawback is also the pressure drop across the air shutter when the air shutter is opened. However, the cooling module according to the embodiment of the present invention prevents the heat leakage to a considerable extent without requiring an air shutter or the like at all. The reason for this is described below.

Prior to the defrosting period, air circulation in the evaporator and cold compartment is slowed down by stopping the fan 42. When the fan is stopped, the air stops circulation substantially after a short time. There is little or no air movement in the cabinet. At the beginning of the defrost period, the evaporator is heated to melt the ice and snow in and on the evaporator, and, if there is a prefrost removal device, to melt the snow and ice on the evaporator. The air inside the evaporator and the air close to the evaporator are also heated, and the heated air expands and rises because it is lighter than cold air. This initiates the movement of hot air from the evaporator to the cold compartment. If much hotter air enters the cold compartment, the temperature rises and ultimately this can damage the article inside the cold compartment.

To ensure that the temperature in the cold compartment does not rise too much, the evaporator 33 is kept in a confined space that is well insulated with the relatively small inlet and outlet openings and the corresponding air conduits 43 and 44. The amount of air in this limited space is thus very small. In use, the temperature of the evaporator is lower than the lowest temperature in the cold compartment. Movement of air into the cold compartment will primarily pass through the outlet and air conduit 43. The air conduit 43 has a relatively small cross section, the air conduit having a smaller cross section than the cross section of the evaporator and also a small opening into the cold chamber, the cross section of the at least one opening into the cold chamber 43 Smaller than cross section Since the air has been stable for a certain time, air layers of different temperature air are formed in the conduit, and these layers are very stable. During the start of the defrost period, the temperature of the bottom of the evaporator and air conduit 43 is lower than the temperature in the cold compartment. This cold air is heavier than the air in the cold compartment and acts as a lid. When a small amount of hot air from the evaporator tries to rise in the air conduit, the air layers prevent upward air circulation. This effect is also augmented by the small opening into the cold cabinet.

The fan can also be used to help prevent upward air movement in the air conduit because the fan can be used to stabilize the air flow during defrosting. This allows the hot air to mix with the cold air in the cold compartment by using a fan to minimize the amount of hot air exiting the cooling module, or in such a way that the temperature in the cold compartment does not rise to a level that affects the items inside the cold compartment. By distributing hot air in a controlled manner. The use of the fan may also be used with a shutter in the air conduit.

More specifically, according to the present invention there is provided a cooling device comprising a cooling module and a cabinet having a low temperature room, the cooling module being arranged at the bottom of the cooling device, the cooling module having a low temperature by means of a low temperature section and an insulating wall. A high temperature section separated from the section, an evaporator disposed in the low temperature section, and a condenser and a compressor disposed in the high temperature section, wherein the cooling module includes an air outlet for supplying low temperature air from the low temperature section to the low temperature chamber and from the low temperature chamber to the low temperature section. An air inlet for receiving air. The cold appliance comprises an air conduit with an air outlet having at least one opening into the cold compartment and extending substantially in a vertical direction, wherein the air conduit is a hot condenser during which the cold air in the air conduit is defrosted in the evaporator. And to provide a temperature layer of air that prevents the entry of air.

According to another embodiment, the air in the air conduit is cooler than the air in the evaporator during defrosting.

According to another embodiment, the air conduit comprises openings arranged at different heights in at least one, preferably three or more, low temperature chambers.

According to another embodiment, the air conduit has a smaller cross section compared to the cross section of the evaporator.

According to another embodiment, the cross section of the at least one opening into the cold compartment is smaller than the cross section of the air conduit.

According to another embodiment, the cooling module includes a fan that circulates air through the evaporator and the cold compartment, wherein during the defrosting of the evaporator the fan is configured to provide low air circulation between the cooling module and the cold compartment so that the air in the cooling module and the cold compartment is low. Stabilize.

The refrigeration unit is a modular system made of separate modular units which makes it possible to manufacture the refrigeration unit, thereby transporting the modular unit in a cost-effective and space-saving manner, and the modular unit is located near the site of use. To assemble the complete cooling unit in an uncomplicated way.

Accordingly, there is provided a cooling appliance configuration kit comprising a cooling module, a plurality of cabinet panels including wall panels assembled into cabinets and at least one door. Each cabinet panel includes an interlayer consisting of an inner sheet, an outer sheet and a foam molded thermal insulation material. Each cabinet panel has an inner surface, an outer surface and four edge surfaces. At least one edge surface of at least the first wall panel of the wall panels is provided such that at least one of the outer sheet and the inner sheet extends beyond the edge surface of the foam molded thermal insulation material and provides an attachment area for attachment to another cabinet panel. It is formed to include the edge surface.

Also provided is a cabinet for cooling appliances, which cabinet is assembled from separate cabinet panels including two opposing side wall panels, a rear wall panel, a top panel and a bottom panel that are connected substantially perpendicular to each other by a joint. It became. At least the side wall panel and the rear wall panel each have an inner surface, an outer surface and four edge surfaces, and include an inner layer forming an inner surface, an outer sheet forming an outer surface, and a thickening layer made of a foam molding thermal insulation material. At least one of the joints between the side wall panel and the rear wall panel is characterized in that at least one of the inner and outer sheets of at least the first wall panel of the wall panels associated with the joint extends beyond the edge surface of the foamed molding material and is associated with the joint. It is configured to have an edge portion that provides an attachment area to which two wall panels are attached.

Using each of the cold appliance configuration kits and cabinets, inexpensive and easy-to-implement joints provide stability to the cabinet, airtight and watertight, good insulation and aesthetically pleasing appearance.

Thus, the edge portion of the outer sheet of the wall panel may be configured to extend beyond the edge surface of the panel. In this manner, the extended outer sheet may optionally bend over the edge surface to fully or partially cover the edge surface of the wall panel, and may remain protruding from the edge surface to be utilized as an overlap. In both cases, the edge portion provides an attachment area.

According to an embodiment of the cold appliance configuration kit and the cabinet, the edge portion extends at an angle relative to the rest of the sheet and at least partially covers the edge surface of the foam molded thermal insulation material. For example, one wall panel associated with a joint of the wall panels is bent over the edge surface, while the outer sheet of the other wall panel has protrusions, so the protruding sheet thus formed overlaps the curved sheet.

According to an embodiment of the cold appliance configuration kit and the cabinet, at least a part of the engagement area between the two wall panels in the joint, the wall panels in this part is foam to foam to prevent any thermal bridges between the interior of the cabinet and the atmosphere. No inner sheet or outer sheet is provided so as to be connected to each other.

According to an embodiment of the cold appliance configuration kit and the cabinet, an outer sheet of both the first wall panel and the second wall panel at the joint adjacent to each individual edge portion is formed with a long groove formed by molding the outer sheet to be curved into the foam material. In this arrangement, the cabinet includes two longitudinal ribs, each inserted into one groove, for joining the two wall panels together.

The groove is adapted to receive each long rib of the connection strip, preferably made of plastic, which connection strip is arranged over the joint between the wall panels, for example by adhesion, snap fit attachment, screwing or a combination thereof. do. The connecting strips increase the strength of the joint and are useful for fastening these two panels closely to each other when the two panels are joined by an adhesive.

The cooling device may relate to the above-mentioned problem associated with the condensation preventing device, and may provide a cooling device having a condensation preventing device that is easily mountable.

Thus, a cabinet, door, and cooling assembled from separate cabinet panels comprising two opposing sidewall panels, a rear wall panel, a top and a bottom, which are connected almost parallel to each other by a cooling module, such as a joint and / or adhesive. There is provided a cooling appliance, such as a home refrigerator or freezer, comprising a condensation preventing device comprising a heat transfer tube, preferably arranged adjacent to a part of the door, in the front frame portion of the cabinet of the appliance. The heat transfer tube is filled with a heat transfer fluid and is closed and provided with a boiler portion, the boiler portion being arranged in thermal contact with the heat generating means of the cooling module for boiling the heat transfer fluid.

By providing the condensation preventing device as an independent unit having a dedicated boiler part arranged to be in thermal contact with the heat generating means of the cooling module, without being interconnected with the cooling system of the cooling device, thereby assembling the cooling device as a whole and mounting the heat transfer tubes. It is easy. In addition, these features make the mounting of the condensation preventing device somewhat different from the mounting of the cooling module. The heat generating means can be for example a compressor, a condenser or a condenser plate of the cooling module. For example, heat transfer tubes can be formed from a variety of materials, but metals are preferred to achieve good thermal conductivity.

According to an embodiment of the cold appliance, the heat transfer tubes are closed and looped. The heat transfer medium can then be circulated within the heat transfer tube without contacting other corresponding media of the devices of the cold appliance.

According to an embodiment of the cold appliance, the thermal shear tube is a one-way tube with two ends closed. This embodiment provides a much simpler solution to the prevention of condensation.

According to an embodiment of the cold appliance, the cabinet comprises a profiled bar, which is mounted to a front frame portion, for example a front edge of the cabinet panel, and the profiled bar is provided with support means for receiving heat transfer tubes. do. By providing a profiled bar and by providing support means for receiving the heat transfer tube in the profiled bar, the mounting of the heat transfer tube is further improved.

According to an embodiment of the cold appliance, the heat transfer tube is snapped on to the support means, which specifies the ease of mounting. However, other modes of attachment, such as gluing or clamping, can also be considered.

According to an embodiment of the cold appliance, the support means is arranged in the recess of the profiled bar, which ensures that no excess space is used by the heat transfer tubes between the front frame part and the door. Alternatively, at least one side wall panel is provided with a recess for receiving the heat transfer tube.

According to an embodiment of the cold appliance, the heat transfer tube is covered with an elongated cover member made of metal, preferably for good thermal conductivity, when mounted to the support means. Preferably, the cover member is mounted such that the inner surface is in contact with the heat transfer tube or at least close to the heat transfer tube, and the outer surface of the cover member is part of the surface of the front frame portion of the cabinet.

According to an embodiment of the cold appliance, there is provided a condensation preventing device comprising a heat transfer tube with a boiler section, the heat transfer tube being filled with a heat transfer fluid and closed. The condensation prevention system is configured to be mounted to the front frame portion of the cabinet consisting of a pre-foamed side wall panel, a rear wall panel, a top and a bottom.

According to an embodiment of the condensation preventing device, the heat transfer tube is closed to form a loop, preferably rectangular. The loop includes a bottom section, a first vertical section, an upper section, a second vertical section and an end section. The upper section is inclined and / or the end section is inclined. This results in a magnetic circulation of the heat transfer fluid in the heat transfer tube, with the inclined section (s) improving the return circulation of the liquid heat transfer fluid.

The cold appliance can provide an interface between the cabinet and the door, which can provide the desired function.

Accordingly, there is provided a cooling device comprising a cooling module, two opposing side wall panels, a back wall panel, a cabinet comprising a top and a bottom, and a door. Each cabinet panel includes an interlayer consisting of an inner sheet, an outer sheet and a foam molded thermal insulation material. Each cabinet panel has an inner surface, an outer surface and four edge surfaces. The side wall panel, the rear wall panel, the top and the bottom are assembled to form a low temperature chamber, which can be closed by a door. The cold appliance further comprises a profiled bar, which is mounted to the edge surface of at least one of the panels. Preferably, the profiled bar is mounted to the edge surface of the front frame portion of the cabinet.

This provides a separate interface composed of profiled bars. The profiled bar is manufactured separately from the cabinet panel, and the profiled bar can be provided with different desired functions.

According to an embodiment of the cold appliance, the profiled bar is preferably formed of a material of plastic material, reducing the thermal bridge between the inner and outer surfaces of the panel during use of the cold appliance. As a result, by properly selecting the material, the characteristics of the cold appliance are improved, especially when the outer and inner surfaces of the panel are made of metal.

According to an embodiment of the cold appliance, the profiled bar is attached to the edge of the panel by an adhesive, for example double sided tape, which facilitates the mounting of the bar.

According to an embodiment of the cold appliance, the profiled bar abuts the door when the door is closed, and the profiled bar is provided with support means for receiving a condensation preventing device. Thus, the attachment of a condensation prevention device is easy by including the support means for condensation prevention devices in a profiled bar.

According to an embodiment of the cold appliance, the support means comprises a recess in which the heat transfer tube included in the condensation preventing device is accommodated and a cover member covering the recess. As a result, a smooth front surface can be obtained.

According to an embodiment of the cold appliance, the cover member is made of a first magnetic material and the door comprises a strip of complementary second magnetic material. As a result, the cover member and the strip cooperate with each other to be locked by magnetic force, thereby reliably keeping the door closed. According to an embodiment of the cold appliance, the profiled bar has an additional function by having a first chamber extending along the length of the profiled bar and a second chamber extending in parallel with the first chamber, wherein the first chamber Supporting the support means and covered by the cover member, the second chamber is arranged closer to the interior of the cabinet than the first chamber. The second chamber can be closed and filled with insulating material such as air or foam.

According to an embodiment of the cold appliance, the profiled bar comprises a wing extending over the edge of the outer surface of the panel. The wings thus cover the outer edges and edges of the panel, which facilitates the cleaning of the cold appliance and improves the appearance of the cold appliance. In addition, the wings protect the insulating material.

The cold appliance can provide a cold appliance in which the problem of the shape of the evaporator is alleviated.

There is thus provided a cooling appliance, such as a home refrigerator or freezer, comprising a cabinet with a cold compartment and a cooling module. The cooling module includes an air outlet that delivers cooling air to the cold compartment, an air inlet that receives air from the cold compartment, an evaporator, and an evaporator fan that produces an air flow from the air inlet to the air outlet through the evaporator. The cross-sectional shape of the evaporator is adjusted for the air flow such that the ratio of the highest air velocity to the lowest air velocity through different parts of the evaporator is minimized.

According to an embodiment of the cold appliance, the cross section of the evaporator is preferably square, while a rectangular shape with a difference in length of less than 20% also works well. This is the best solution for the shape of the cross section swept by the evaporator fan, which is available without incurring excessive costs. On the other hand, according to another embodiment, the cross section of the evaporator is circular, but in this case cost is added.

According to an embodiment of the cold appliance, it is advantageous for the width of the evaporator to correspond to or be smaller than the cross section swept by the evaporator fan.

According to an embodiment of the cold appliance the evaporator comprises a plurality of fin plates. The fin plate substantially increases the efficiency of the evaporator. A number of advantages are achieved by placing the pre-frosting device adjacent to the evaporator such that air from the cold compartment is directed to the pre-frosting device before it reaches the evaporator so that at least some moisture of the air from the cold chamber is stuck to the pre-frosting device. do. For example, longer elapses before the evaporator is blocked by frost / freezing, or the fins can be placed closer to each other without allowing the time between defrosting operations to be shortened. By providing a larger number of pins, the efficiency is further increased.

It is possible to provide an automated manufacturing process for manufacturing cabinet panels.

Accordingly, a method is provided for manufacturing a panel for a cooling appliance, such as a home refrigerator or freezer, comprising two sidewall panels, a back wall panel, a top and a bottom, which are attached together to form a cabinet, each panel being an inner sheet. And an intermediate layer consisting of an outer sheet and a foam molding thermal insulation material. The manufacture of panels consists of a continuous double belt foam molding method, which

A sheet feeding step of feeding the upper sheet and the lower sheet from the respective upper sheet roller and the lower sheet roller to the inflow end of the sheet forming and foam applying apparatus,

A sheet holding step of holding the upper sheet and the lower sheet at a distance from each other while feeding the upper sheet and the lower sheet from the inlet end to the outlet end of the sheet forming and foam applying apparatus;

A sheet profiling step of profiling each sheet into a profile shape if desired,

A foam dispensing step of dispensing the insulating foam over the lower sheet surface in the spaces between the sheets,

A web acquisition step of curing the foam, thereby obtaining a continuous sandwich web,

A panel cutting step of cutting the sandwich web into a cabinet panel, and

A cooling control step of controlling the cooling of the panel so that the panel does not bend.

By the above method, it is possible to manufacture the panel as a continuous process.

According to the method, the step of profiling comprises bending the edge of at least one of the sheets with respect to the rest of the sheet. This makes it possible to obtain different edge structures of the panels, for example for the assembly or reinforcement of the panels.

According to an embodiment of the method, the method

A sheet premachining step of premachining the sheet prior to the foam dispensing step to prepare the sheets for mounting of subsequent individual parts,

At least one of a fastening mechanism provision step of providing a fastening mechanism in the sheets before the foam dispensing step.

This embodiment is advantageous in that a fastening mechanism disposed on the inner side of the sheet or projecting into the inner side of the sheet is embedded in a foam to which it is subsequently applied.

According to another aspect, there is provided a method of manufacturing a cooling appliance, such as a domestic refrigerator or freezer, comprising a panel made according to a method of manufacturing a panel for a cooling appliance, the method comprising a cabinet assembly step of assembling a cabinet and a cabinet Attaching a cooling module to attach a cooling module, wherein the cabinet assembly step

Connecting the two side wall panels and the back wall panel along most of the length of the edge of the back wall panel or side wall panel using an adhesive,

Connecting the top and the bottom to the side wall panel and the rear wall panel.

The cooling device can provide a cooling device that mitigates the above-described problems that occur when the evaporator is at least partially disposed below the compressor.

Accordingly, a cooling device comprising a cooling module and a cabinet having a cold compartment, wherein the cooling module includes an air outlet for transferring cooling air to the cold compartment and an air inlet for receiving air from the cold compartment. do. The cooling module is disposed at the bottom of the cold appliance, the cooling module comprising a hot section separated from the cold section by the cold section and the insulation wall, an evaporator disposed in the cold section, and a compressor and a condenser disposed in the hot section. The condenser is meandering and is arranged on the bottom plate of the cooling module, or is composed of a condenser tube integral with the bottom pipe.

Thereby, a heat generating device, ie a condenser tube, is available at the bottom level of the cooling module and is useful for the purpose of defrosting and evaporating the produced water.

According to an embodiment of the cold appliance, the cooling module comprises a drainage tray disposed adjacent to the condenser tube and containing water produced by defrosting from the evaporator. This is an advantageous method for using the heat generated by the condenser tube to remove the defrost and to evaporate the water produced, along with the efficient cooling of the condenser tube.

According to an embodiment of the cold appliance, the drainage tray is constituted by a portion of the bottom plate. Thereby, the drainage tray is simply realized when the basic structure of the cooling module is adopted.

On the other hand, according to an embodiment of the cold appliance, the drainage tray consists of a separate tray disposed on top of the condenser tube.

According to an embodiment of the cold appliance, the cooling module comprises a collecting plate for collecting the defrosted water, which is disposed below the evaporator, and a water extending from the collecting plate to the drainage tray and removing the frost to the draining tray. It further includes a pilot drain pipe. Thereby, the water produced by defrosting is safely collected and transported between the cold section and the hot section with minimal impact on the insulation between the cold section and the hot section.

According to an embodiment of the cold appliance, the condenser tube is arranged inside the drainage tray, whereby the heat of the condenser tube is efficiently transferred to the water.

The cold appliance can provide a solution to the post-mounting of components, such as cables and air conduits, to be precise, in the cold appliance.

Accordingly, there is provided a cooling device comprising a cooling module, a cabinet consisting of two pre-foamed opposing sidewall panels, a pre-foamed back wall panel, a cabinet panel comprising a top and a bottom, and a door. The cooling module includes an air outlet for transferring cooling air to the cold compartment, and an air inlet for receiving air from the cold compartment. The cooling device further comprises a rear wall lining, which is arranged on the inner side of the prefoamed rear wall panel, and a space is formed between the rear wall lining and the rear wall panel.

The rear wall lining is feasible as a separate component that is easy to mount and can hide a number of post-mounted components in the space between the rear wall lining and the rear wall panel.

According to an embodiment of the cold appliance, the rear wall lining comprises an inlet air conduit connected to said air outlet, an outlet air conduit connected to said air inlet, a first air exhaust port connected to said inlet air conduit and a cold compartment, and said outlet air A second air exhaust port connected to the conduit and the cold compartment, wherein the inlet and outlet air conduits are disposed in the space. Thereby, the rear wall lining is useful for configuring the air circulation in the cold compartment in a desired manner.

According to an embodiment of the cold appliance, the rear wall lining is used to hide the cable extending in the space. Thus, additional functions of lining are provided. This is also the case for another embodiment where the cooling appliance further comprises an electrical element mounted to the rear wall lining. Such electrical elements are for example fans, lights, temperature sensors and motors.

According to an embodiment of the cold appliance, the cold appliance further comprises a shelf support disposed on the rear wall lining.

According to an embodiment of the cold appliance, the rear wall lining is attached to the rear wall by mechanical means, such as an interference fit or a snap fit. This solution makes the attachment quick and simple.

The cold appliance can provide a device for increasing the thermal and cost efficiency of the evaporator, preventing the formation of frost and freeze on the evaporator or at least reducing the formation of such frost and freeze.

Thus, there is provided a cooling appliance, such as a refrigerator or freezer, comprising a cabinet having a cold compartment and a cooling module, the cooling module having an air outlet for transferring cooling air to the cold compartment, an air inlet for receiving air from the cold compartment, an evaporator, And an evaporator fan that generates an air stream exiting the air outlet from the air inlet through the evaporator. The refrigeration module further includes a prefrost removal device disposed adjacent to the evaporator such that at least some moisture of the air from the cold compartment is secured to the prefrost removal device before the air from the cold compartment reaches the evaporator. do.

Thus, by placing the pre-removal device in contact with or in proximity to the evaporator and / or the cold air stream from the evaporator, the return air flow from the cold compartment passes through the pre-removal device and is included in the air stream. At least some of the moisture condenses and freezes on the prefrost removal device before reaching the evaporator.

According to an embodiment of the cold appliance, the pre-defrosting device is arranged in thermal contact with the evaporator so that the pre-defrosting device is also defrosted when the evaporator is heated for defrosting. As a result, no defrosting of the separate defrosting device is required.

According to an embodiment of the cold appliance, the defrosting device comprises a plate and is arranged on top of the evaporator. Thereby, the defrosting device forms a bottom wall delimiting the air conduit for the return air flow. However, because the defrosting device may also have many other shapes, such as a circular or square tube shape that encloses the evaporator and / or the cold air flow from the evaporator, the hot, wet return air flow may be around the tube before entering the evaporator. It will flow outside of.

According to an embodiment of the cold appliance, the air is passed through the prefrost removal device, for example by placing the removal device in a dictionary having spaced flanges, or by placing the removal device in a dictionary of porous material.

According to an embodiment of the cold appliance, the defrosting device comprises a first end and a second end, wherein air from the cold compartment passes through the first end prior to the second end, the first end being the primary for the evaporator. It is arranged at a distance from the inlet. This means that air can be freely contacted with the upper part of the evaporator, or it can pass through a portion of the evaporator from above as well as entering the evaporator from the main inlet end.

According to an embodiment of the cold appliance, the distance between the fin plates in the evaporator is 2 to 10 mm, preferably 3 to 5 mm. This distance is smaller than the appropriate distance if no pre-cancellation device is provided.

The cold appliance is assembled from separate parts but can provide a cabinet configuration with good stability and strength.

Thus, a home refrigerator or comprising a cooling module and a cabinet consisting of two opposing side wall panels, a rear wall panel, and a cabinet panel comprising a top, which are connected almost perpendicularly to one another by a mechanical joint and / or an adhesive joint. Cooling appliances such as freezers are provided. Each cabinet panel includes an inner layer, an outer sheet, and an intermediate layer made of foam molded insulation material, and each cabinet panel has an inner surface, an outer surface, and two edge surfaces. The cooling module includes a low temperature section, a high temperature section separated from the low temperature section by a thermal insulation wall, an evaporator disposed in the low temperature section, and a compressor and a condenser disposed in the high temperature section. The cooling module comprises a bottom with support means such as a wheel and / or a foot, the bottom edge of at least one of the sidewall panels attached to the bottom.

According to an embodiment of the cold appliance, each of the side wall panels is glued together with the rear wall panels over a majority of the vertical edges of the side wall panels or the rear wall panels. The adhesive joint with a large area thus distributes the tensile force generated in the cabinet by the heat load that occurs during use of the cold appliance.

According to an embodiment of the cold appliance, each joint between one of the side wall panels and the rear wall panel is arranged in a long vertical groove formed in one of the side wall panel and the rear wall panel, and in a panel different from the panel in which the vertical groove is formed. And a connecting strip inserted into the groove such that the vertical edge of the side wall panel or the rear wall panel is pressed against the inner surface of the rear wall panel or the inner surface of the side wall panel. Groove-strip connections further strengthen the joint.

According to an embodiment of the cold appliance, a reinforcing fitting is attached to the front edge between the side wall panel and the top, for example for attachment of the door hinge.

According to an embodiment of the cold appliance, at least one of the prefoamed sidewall panels, preferably also the rearwall panel, is produced by a method comprising a continuous double belt foam molding process.

In the drawings and the present specification, preferred embodiments and examples of the present invention have been disclosed. The features and details described in the different embodiments and examples are not limited to use in a particular embodiment or example unless explicitly stated. Accordingly, unless stated otherwise, features of one embodiment or example may be used in other embodiments or examples. It will be apparent to those skilled in the art that many modifications may be made without departing from the invention as defined in the claims that follow.

1: side wall panel
2: top panel
3, 4: rear wall panel
6: door
23: profiled bar
31: bottom plate
32: condenser
33: evaporator
34: low temperature section
35: high temperature section
36: compressor
46: drain tray
49: drain pipe
100: cooling appliance
101: cabinet
102: cooling module
103: inner floor of the cabinet
104: low temperature room
150: Defrost Device

Claims (17)

Cooling appliances, such as household refrigerators or freezers, comprising two opposing side wall panels 1, rear wall panels 4, upper part 2, which are connected almost perpendicularly to one another by means of a cooling module and eg mechanical joints and / or adhesive joints. And a cabinet (101) assembled with a pre-foaming molded panel including a bottom (103) and a door (106),
The cabinet comprises a condensation preventing device (160) comprising heat transfer tubes (28, 160), preferably located adjacent to a part of the door (6), in the front frame part of the cabinet of the cold appliance. Is filled with a heat transfer fluid, is closed and has a boiler portion (172) arranged to be in thermal contact with the heat generating means (32) of the cooling module to boil the heat transfer fluid. The cold appliance of claim 1, wherein the heat transfer tubes (28, 160) are closed in a loop. 2. The cold appliance of claim 1 wherein the heat transfer tubes (180, 190) are one-way tubes each having two closed ends. The cooling module (102) according to any one of the preceding claims, wherein the cooling module (102) comprises a condenser, preferably the condenser is arranged to be in thermal contact with the boiler portion 172 of the heat transfer tube. A cooling device comprising a condenser tube (32) arranged in a meandering shape on the bottom plate (31). The cabinet (101) according to any one of claims 1 to 4, wherein the cabinet (101) is arranged on the front frame (e.g., front edge) (16) of the cabinet panel (1) and receives the heat transfer tube (28). A profiled bar (23) comprising support means (27). 6. Cooling device according to claim 5, wherein the heat transfer tube (28) is snapped onto the support means (27). The cooling device according to claim 5, wherein the support means is arranged in a recess (25) of the profiled bar (23), which can be closed by an elongated cover member (26). 8. Cooling device according to claim 7, wherein the heat transfer tube (28) is in contact with the cover member (26). 2. Cooling device according to claim 1, wherein at least one side wall panel (1) is provided with a recess (25) for receiving a heat transfer tube. 3. The cabinet (101) according to claim 1 or 2, wherein the cabinet (101) further comprises a central section (7) adapted to divide the cabinet into two or more compartments, wherein the heat transfer tube (160) is located on the front edge of the central section. Wherein the intermediate section 165, 180 ′, 190 ′ is arranged for placement. A condensation preventing device comprising a heat transfer tube having a boiler portion 172, wherein the heat transfer tube is filled with a heat transfer fluid and closed.
The condensation preventing device is configured to be mounted to the front frame portion of the cabinet 101 formed of the pre-foamed side wall panel 1, the rear wall panel 4, the top 2, and the bottom 103. device. 12. Condensation preventing device according to claim 11, wherein said heat transfer tube (160) is closed in a loop, preferably in a rectangular shape. The condensation prevention method of claim 12, wherein the loop comprises a bottom section 162, a first vertical section 164, an upper section 166, a second vertical section 168, and an end section 170. device. 14. The condensation preventing device of claim 13, wherein the upper section (166) is inclined / tilted and the end section (170) is inclined. 12. The heat transfer tube according to claim 11, wherein the heat transfer tube comprises at least one unidirectional tube (180) with two closed ends, preferably two unidirectional tubes (180, 190) with two closed ends, respectively. Condensation prevention device which includes. 14. The condensation preventing device according to any one of claims 11 to 13, wherein a cross section of the boiler portion (176) is larger than most cross sections of the remainder of the heat transfer tube (160). 17. The heat transfer tube according to any one of claims 11 to 16, wherein the heat transfer tubes are provided with intermediate sections 165, 180 ', and 190', and the front frame portion of the cabinet 101 divides the cabinet into two or more compartments. Further comprising at least one central section (7).

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