DE202015004047U1 - Heat-insulating body for a cooling unit and cooling unit with a heat-insulating body - Google Patents

Abstract

Heat-insulating body (1) for a refrigerator, characterized in that the body (1) with arranged in the form of a frame side walls (2) and one of the side walls (2) formed frame on one side closing the rear wall (5) or one of the Side walls (2) formed frame unilaterally closing floor is executed, that the side walls (2) structuring of plate-shaped vacuum insulation panels (2) are formed and that the side walls (2) forming vacuum insulation panels (2) are fixed in their mutual relative position such that they together with the rear wall (5) form the overall stable body (1).

Description

The invention relates to a heat-insulating body for a refrigerator with the features of the preamble of claim 1 and a cooling device with a heat-insulating body having the features of the preamble of claim 21.

In the present case, a refrigerator is understood to mean first of all a refrigerator-like refrigerator, that is to say a refrigerator, a freezer or a refrigerator / freezer combination, and a chest-type refrigerator, in particular a freezer or freezer. In particular, the term refrigerator preferably refers to household refrigerators, but also to refrigerators, as they are used for receiving stored goods, which must be stored cool, in the industry. In the following, when the term "refrigerator" is used, cabinet-type refrigerators, which thus have a door for reaching the storage space for the storage goods, and chest-type refrigerators, which accordingly have a lid for reaching the storage space for the stored goods, are used , meant.

Under a cooling device is presently also a cooling container, in particular in the form of a refrigerated container, understood, ie a device that keeps stored therein stored goods cool, but is not provided with a cooling unit.

In the manufacture of refrigerators, an inner container is usually produced in a plastic drawing process, which defines the receiving space for the stored goods. At the inner container first various device components are mounted. Subsequently, the appropriately prepared inner container is provided with an outer housing. The thus prepared unit is placed in a foam system, in which the existing between the outer housing and the inner container cavity is foamed with an insulating foam. After curing of the insulating foam, the device body thus completed is processed in a final assembly to the finished cooling device. As insulating foam polyurethane foam is often used.

The mechanical stability of the refrigerator with its body, which forms the receiving space for stored goods is achieved in this prior art by the interaction of the outer housing with the inner container including existing mechanical connections there using the foam-like insulation in the space.

The thickness of the heat-insulating walls of the body of a known, isolated by the previously described method cooling device is considerable. The receiving space for the stored goods in such a cooling device is so small in particular in relation to the outer dimensions of the refrigerator, if one wishes to have very low the temperature of the stored material in the receiving space in comparison with the ambient temperature and / or a very long-term stability of the temperature Reception room effortlessly electrical energy for the cooling unit strives. The latter is of considerable importance for cooling appliances from the point of view of energy efficiency.

In the refrigerator, from which the invention proceeds ( DE 10 2010 042 235 A1 ), the entry of insulating material is not after the assembly of the outer housing and inner container of the refrigerator, but already before, in a composite endless web in a substantially continuous manufacturing process. As before, it is a first liquid and then foamed under pressure and / or heat insulating material, but to a certain extent as a filling in a composite endless web. The composite blank cut to form the heat insulation in the walls of the body of the known cooling device is initially planar, but has corresponding predetermined bending points. In a subsequent shaping a box-shaped pre-assembly is formed by folding, which has, for example, back and side walls, which are connected by bending lines of the same material and integrally with each other. The pre-assembly unit thus formed has top and bottom open end sides. These are each formed by blank edges on which the insulating material is still exposed in the composite material. In contrast to these blank edges, the diffusion-proof side edges of the pre-assembly unit are provided at the loading opening, via which the receiving space for the stored goods is accessible.

At the top of the preassembly unit is a laid, likewise heat-insulating executed ceiling part, while at the bottom of a corresponding bottom part is located, which can also be designed as a base and equipped with lines, etc. In the ceiling part of this refrigerator is an evaporator chamber with an evaporator and a fan. In the bottom part is a refrigeration unit, which communicates with the evaporator via lines and thus forms the usual refrigerant circuit.

In the known, previously explained cooling device, it is practical that the body consists essentially of the multiply bent composite material, which contains in itself serving for thermal insulation layer of foamed insulating material. Possibly. is still provided an inner container be, an outer housing is not necessarily required in this construction.

The well-known, previously explained cooling device is indeed expedient in terms of the cost of its production, the problem of volume utilization of the refrigerator, so the small because of a very thick insulation in comparison with the outer dimensions of storage space for stored goods is not different in the known cooling device as in there already assumed prior art.

The invention is based on the problem of specifying a heat-insulating body for a refrigerator, which leads to better space utilization in the refrigerator. The same applies to the creation of a refrigerator with improved space utilization.

The above-indicated problem is solved in a heat-insulating body for a refrigerator with the features of the preamble of claim 1 by the features of the characterizing part of claim 1.

According to the invention, it is initially provided that the body is designed with a side wall arranged in the form of a frame and a rear wall closing the side walls of the frame or a bottom closed on one side by the frame, that the side walls are structurally formed by plate-shaped vacuum insulation panels and in that the vacuum insulation panels forming the side walls are fixed in their mutual relative position in such a way that together with the rear wall they form the overall stable body.

According to the invention, an insulating foam is not used to form the heat insulating running walls for the body of a refrigerator, which must be foamed comparatively thick at a given heat transfer coefficient, but extremely powerful plate-shaped vacuum insulation panels are used. However, these can not initially produce planar and then bring by bending in the desired frame-like shape. Rather, the plate-shaped vacuum insulation panels must be assembled. According to the invention arranged in the desired frame-like shape vacuum insulation panels are fixed in their mutual relative position, in such a way that they form the overall stable body after fixation. The inventive arrangement thus results in a largely deformation-resistant, stable frame of vacuum insulation panels.

The thickness of a heat-insulating executed wall of the body in the form of a vacuum insulation panel is at default of a certain heat transfer coefficient substantially less than the thickness of a foamed insulating layer. Thus, the inventive heat-insulating body for a cooling device creates the conditions for a significantly better space utilization.

Vacuum insulation panels have long been known. All information on the functional design of vacuum insulation panels from various aspects is derived from the prior art ( WO 2008/137889 A1 ; WO 2004/104498 A2 ).

A typical plate-shaped vacuum insulation panel has a pressure-stable core and a gas-tight surrounding the pressure-stable core envelope ( WO 2004/104498 A2 ). The pressure-stable core of the vacuum insulation panel may consist of an open-cell foam, pressed silica powder, perlite powder, glass fibers or other fibers. The core may also consist of a sandwich arrangement in the sequence of different materials, for example open-pored foam, glass fiber material, open-pore foam.

The cover typically uses a high barrier film, which is often multi-layered. In particular, a high barrier film as a layer has an aluminum coating or foil which achieves perfect gas tightness. In order to avoid damage to the envelope of the vacuum insulation panel, one can use as one of the layers of paper, which in turn is covered, for example, to the outside by a thin plastic film.

For the present application according to the invention, a vacuum insulation panel laminated to paper or thin paperboard is particularly suitable.

In principle, the heat-insulating body for a refrigerator according to the invention has an overall box-shaped design. But it is also possible, according to plate-shaped vacuum insulation panels, for example, in a triangular frame assembly together. This is also an arrangement that is covered by claim 1 of the present application.

The fixation of the arranged in the form of a frame, the forming vacuum insulation panels in their mutual relative position can be done in any meaningful way. Preferred examples of constructive solutions for achieving the overall stable body of these frame-like arranged vacuum insulation panels are the subject of the dependent claims.

Further preferred refinements and developments of the heat-insulating body according to the invention for a cooling device are the entire subject matter of claims 2 to 19.

The related to the heat-insulating body subclaims are explained in detail in the explanation of preferred embodiments with reference to the drawings.

The invention is also a cooling device with the features of the preamble of claim 21. This is characterized according to the characterizing part of claim 21, characterized in that the body is designed according to one or more of claims 1 to 20.

In that regard, preferred embodiments are described in claims 22 to 26.

Essentially, however, one can refer to the explanation of the body in its various design variants for the explanation of the cooling device under aspects of the invention. Overall, refinements and developments in a particular embodiment variant can in principle also be used in all other design variants, provided that there are no constructive barriers.

In the following, the invention will now be explained in more detail with reference to a purely preferred embodiments illustrative drawing. In the drawing shows

1 in a perspective view of a first embodiment of a heat-insulating body according to the invention for a cooling device,

2 an end view of the carcass 1 in a schematic representation,

3 a further embodiment of a heat-insulating body in one 2 corresponding front view,

4 a perspective view of another embodiment of a heat-insulating body according to the invention,

5 in a 4 corresponding representation of a further embodiment of a 4 similar, slightly modified body,

6 a 2 corresponding front view of the body 4 .

7 in a schematic representation of the body 4 in a modified embodiment,

8th in a schematic representation of a refrigerator with a body according to 4 .

9 in a schematic representation of a cooling device according to 8th provided with an inner container and a cover on the door,

10 similar in perspective view 9 , but with closed door, a cooling unit with a base,

11 the cooling unit off 10 in a perspective view obliquely from behind, so from the left in 10 ,

As already stated above, constructive variants, which are explained in one exemplary embodiment, are also considered as options for all other exemplary embodiments, provided that the respective variant can be implemented constructively.

For the following description of the embodiments, it is further noted that the explanations given in the general part of the description for a heat-insulating body, for a refrigerator and for a vacuum insulation panel for the representation of all embodiments of the invention apply, even if in the individual embodiment illustrated only individual variants are. In particular, the alternative embodiment of a cooling device as a passive cooling tank without refrigeration unit also applies here.

1 shows first a heat-insulating body 1 as intended for a refrigerator, such as a refrigerator as in 8th or 9 shown, can be used. The body 1 has initially arranged in the form of a frame side walls 2 on. The one from the side walls 2 formed frame is unilaterally by means of a rear wall 5 closed. In this construction, the body is 1 designed like a cabinet. Is the body 1 designed like a chest, this is the one of the side walls 2 formed frame unilaterally closed by a floor. This variant is not shown in the drawing.

For the body 1 is essential that the side walls 2 Structure of plate-shaped vacuum insulation panels 2 are formed. The reference number 2 stands for both terms below.

The side walls 2 forming vacuum insulation panels 2 are fixed in their mutual relative position so that they together with the in 1 indicated back wall 5 the overall stable body 1 form. In 1 is the corpus 1 at the front side open. Here he can be closed later by a door.

As has already been explained in the general part of the description, in principle the corpus 1 be frame-like, but not rectangular, for example, triangular. Also, that would be a stable construction of a heat-insulating body 1 build according to the invention. However, this is for the intended use of the heat-insulating body 1 rather unusual in a refrigerator.

For the following description of preferred embodiments is of a box-like, generally rectangular body 1 this is to be understood as limiting the scope of protection.

In the embodiments shown in the 4 to 7 are shown are for the body 1 the vacuum insulation panels 2 executed in a cuboid with smooth edges and arranged in pairs opposite one another with either edge flush butt or arranged freely projecting with both edges. 1 to 3 and 8th show embodiments in which it is provided that the vacuum insulation panels 2 executed in a cuboid with smooth edges and circumferentially abutting one edge at a time, at the other edge are arranged freely protruding.

Not shown in the drawing is a variant in which it is provided that the vacuum insulation panels 2 of the body 1 cuboid, but designed with bevelled edges and arranged abutting one another on miter. Such an arrangement of vacuum insulation panels for side walls of containers is known from another prior art, which is related to transport containers ( EP 2 221 569 A1 ). A miter of the type in question preferably has a miter angle of 45 °.

All three variants described above can be used for a heat-insulating body 1 use according to the invention. You can also combine these variants with each other.

The illustrated embodiments show each side wall 2 in each case a single plate-shaped vacuum insulation panel 2 , Each of the vacuum insulation panels 2 However, it can also be divided into several smaller vacuum insulation panels. It is within the scope of the teaching of the invention, a vacuum insulation panel 2 be replaced by two, for example, each half as large smaller vacuum insulation panels. The singular mentioned in the text therefore preferably also includes the plural.

For 1 to 7 applies to each of the embodiments shown there, that the frame-like arranged vacuum insulation panels 2 are each fixed in their mutual relative position so that they form a stable overall body.

In the embodiment of 1 is intended that the body forming the vacuum insulation panels 2 firmly bonded together by gluing and thereby fixed in their relative position. The bond is in 1 through the thick lines between the surfaces of the vacuum insulation panels 2 indicated. There are various possibilities for the realization of this bond. Separate adhesives may be used. Double-sided adhesive tapes can be used. Bonding by hot melt adhesive of appropriate design is also possible in principle, also a direct bonding of plastic films, the outside of the vacuum insulation panels 2 to find, for example, PE films, in the prior art corresponding species.

As bonding within the meaning of the invention is also to be considered a material-locking connection by ultrasonic welding.

The gluing does not have to be done over the entire surface. It can also be a bond via adhesive dots or narrow strips of tape can be realized.

In 2 is the interaction of the different components of the body 1 shown again. You can see how the different vacuum insulation panels 2 abut flat against each other and glued accordingly.

3 shows in one 2 corresponding representation another variant. Here is provided that the body 1 forming vacuum insulation panels 2 by a foam 2 ' firmly connected to each other and fixed in their relative position. The foam should preferably have a layer thickness of less than 5 mm. Preferably, the foam is 2 ' one made of polyurethane foam.

The fixation by means of a foam 2 ' holding the vacuum insulation panels 2 on the outside and / or inside, preferably on all sides, can also with a different fixation of the vacuum insulation panels 2 , For example, the above-described bonding combined. The foam 2 ' in this embodiment, the heat insulation is only secondary. Rather, it primarily serves to stabilize the body. The heat-insulating effect itself becomes primarily through the vacuum insulation panels 2 achieved.

4 shows a further, particularly preferred embodiment of a heat-insulating body according to the invention 1 , This is based on the fact that the frame-like arranged vacuum insulation panels 2 with at least one clamping device 3 are fixed in their mutual relative position. Due to the tightly clamped clamping device 3 becomes the body 1 from the vacuum insulation panels 2 stable in itself. At the same time has the clamping device 3 the advantage that the vacuum insulation panels 2 pressed against each other at the edge. This will cause the gaps between the vacuum insulation panels 2 as low as possible and the heat transfer at these bridges is minimized.

Also in the previously explained, particularly preferred embodiment of a body according to the invention 1 It is possible to use in addition other means for fixing the relative position, for example the above-described adhesion or the above-described foam-coating.

According to the invention can be achieved with the body according to the invention 1 Overall, a mechanically stable cooling device with a known from the prior art solutions very thin heat-insulating wall, so that overall results in a significantly improved space utilization.

By the arrangement of the vacuum insulation panels 2 , which are mechanically clamped together to a certain extent on impact, the entire system can easily be taken apart again for recycling and fed to the individual recycling stages.

The illustrated and preferred embodiment of 4 shows two spaced-apart clamping means 3 , One clamping device each 3 is here near one of the encircling edges of the corpus 1 arranged.

The illustrated and preferred embodiment of 4 shows the clamping device 3 or the two clamping means shown here 3 as an around the frame-like arranged vacuum insulation panels 2 revolving strap. Such tension bands are known from packaging technology. As a comparable alternative, you can also use a tensioning cable as a tensioning device 3 provide.

Another design uses a U-shaped clamp (which is not shown in the drawing), which acts like a kind of screw clamp on the vacuum insulation panels 2 of the body 1 can be plugged.

A likewise not shown in the drawing, but in itself significant variant of a body 1 uses as a clamping device 3 one on the vacuum insulation panels 2 , of course, leaving the entrance opening for the free space inside the carcass 1 , shrunk plastic shrink film. Material for shrink films has long been known in the art. Even with a shrink film can be from the outside, the frame-like arrangement of the vacuum insulation panels 2 fix, leaving a stable overall body 1 results.

In the presence of several clamping devices 3 You can also optionally different types of clamping devices 3 combine with each other. For example, in the preferred embodiment of FIG 4 additionally shrink on a shrink film.

So that or the clamping means 3 not in the sensitive outer layer of the vacuum insulation panels 2 cutting, protects the edges of the coherent frame-like body 1 composite vacuum insulation panels 2 preferably with edge protection elements 4 , These are, as shown here, for example, angle rails made of cardboard or plastic or metal. This prevents any damage to the outer surface of the vacuum insulation panels 2 despite the application of considerable forces to the outer surfaces of the vacuum insulation panels 2 ,

This in 4 illustrated preferred embodiment, which in a front view schematically in 6 shown has another vacuum insulation panel 5 on in 4 invisible rear edge of the body 1 across the frame-like vacuum insulation panels 2 is arranged. This forms the back wall 5 of the body 1 , From a synopsis of 4 and 6 can be seen that this further vacuum insulation panel 5 inside of the vacuum insulation panels 2 formed frame is arranged. It is in its length and width of the free inner length and inner width of the vacuum insulation panels 2 adapted frame and preferably sized slightly larger. This one looks good in 6 , There are the gaps between the vacuum insulation panels 2 . 5 and towards the edge protection elements 4 and the clamping device 3 deliberately exaggerated to the interaction of the individual components of the body 1 easy to recognize.

Also with the in 1 . 2 and 3 illustrated embodiments of the body 1 there is another vacuum insulation panel 5 as a back wall 5 inside of the frame-like arranged vacuum insulation panels 2 formed frame.

In the embodiment of 5 is another arrangement of another vacuum insulation panel 5 that the rear wall to be closed 5 of the body 1 forms, provided. Here it is provided that the further vacuum insulation panel 5 on a narrow side of the body 1 transverse to the vacuum insulation panels 2 is arranged and that the further vacuum insulation panel 2 in its length and width of the outer length and outer width of the vacuum insulation panels 2 corresponds to the frame formed. Preferably, this vacuum insulation panel 5 even bigger. Such a construction could also be used as an alternative in the other embodiments.

This in 5 illustrated embodiment further shows that here the edge protection elements 4 down to the other vacuum insulation panel 5 extend so that the more vacuum insulation panel 5 together with the frame-like arranged vacuum insulation panels 2 is tense.

This in 5 illustrated embodiment shows another feature such that the rearwardly arranged further vacuum insulation panel 5 not only through the edge protection elements 4 under the pressure of the clamping device 3 is fixed, but that this vacuum insulation panel 5 independent by additional clamping devices 6 is fixed, which is transverse to the clamping devices 3 are arranged running and level with the upper and lower vacuum insulation panels 2 the frame-like body 1 lie.

As 5 can be seen, is through the other clamping means 6 , which are designed here as circumferential tension bands, access to the interior of the carcass 1 not impaired. These other clamping devices 6 but create an additional tension and thus fixation.

The previously described constructions of the rear wall 5 are in a similar way for a floor of a carcass 1 applicable.

For all previously described clamping devices 3 . 6 applies that they can be designed not only in the manner shown as a strap, but that all variants that have been previously mentioned are basically usable. The illustrated circumferential clamping bands as a clamping device 3 respectively. 6 However, they are particularly useful in the manufacture and in the application.

For an optimal thermal insulation effect, it can in all the illustrated embodiments of a body according to the invention 1 further suggest that the edges or surfaces of the vacuum insulation panels defining a gap 2 are provided with additional sealing means, in particular with sealing surfaces or sealing strips and / or that joints between the vacuum insulation panels 2 to the outside water vapor-tight, for example, with a foil strip, sealed.

6 shows a special feature of the further vacuum insulation panel 5 , which are in the form of a frame vacuum insulation panels 2 should occur. At this further vacuum insulation panel 5 can be a peripheral recess 12 for the implementation of lines o. The like. Attach. When installing the carcass 1 in the further construction of a refrigerator can here required lines o. The like. Perform. Of course, this special feature also applies to all other variants that are discussed here.

Each passage of a line through a side wall 2 or a back wall 5 of the body 1 represents a thermal bridge, which is not desired per se. The effect of such a thermal bridge can be reduced by passing a conduit over a certain distance in a heat-insulated gap between two vacuum insulation panels. The pipe runs a bit in the insulation, a direct thermal bridge is avoided. This can of course be realized for each of the desired lines. This construction can be used particularly well where a vacuum insulation panel 2 ; 5 is designed in the form of two smaller sub-panels.

1 shows a further feature of a body according to the invention 1 , The body 1 in 1 has an open side towards the front. At the open side of the body 1 is inside of the frame-like arranged vacuum insulation panels 2 frame formed a rigid support frame 7 arranged. This stiff support frame 7 may preferably be made of metal or a fiber-reinforced or non-fiber-reinforced plastic. This support frame 7 serves to the vacuum insulation panels 2 that the body 1 form, on the open side of the carcass 1 to stabilize and fix in itself. The vacuum insulation panels 2 are expediently with the support frame 7 firmly connected, in particular glued.

Basically it is possible to have a support frame 7 also on the other end of the vacuum insulation panels 2 Arranged interior space to optimally stabilize the construction from the inside overall.

An appropriate construction as in 1 with a support frame 7 one sees also in the embodiment of 7 ,

7 shows another feature that corresponds to a preferred embodiment of the invention. In 7 One can assume that at the rear edge of the corpus 1 another vacuum insulation panel 5 transverse to the frame-like arranged vacuum insulation panels 2 is arranged and the body 1 closes backwards. At this vacuum insulation panel 5 opposite edge of the carcass 1 can here a closing the existing here opening door 10 (shown in 8th ) or an existing here opening closing lid (in an upwardly open body 1 ) can be arranged. In the illustrated and preferred embodiment is provided here that the door 10 or the lid with hinges 8th on the support frame 7 is pivotally mounted. These hinges 8th are in 7 indicated schematically. Alternatively, the hinges 8th z. On the vacuum insulation panels 2 be clamped.

8th and 9 show a body 1 built according to the invention in an outer housing 9 a cooling device. Regardless, some features will be explained first, the preferred embodiments of the body 1 as such.

Combined with 7 shows 8th that the door 10 which is also the body 1 itself can be assigned (see the hinges 8th in 7 ) with at least one vacuum insulation panel 11 provided or in an alternative embodiment of a vacuum insulation panel is completely formed. Then the optimum thermal insulation for the body is established 1 also at the door 10 continued.

The same applies to a cover instead of a door with an upwardly open body 1 ,

8th and 9 let in context and in comparison with the corpus shown there 1 recognize another special feature. There is in fact in 9 shown in that of the frame-like arranged vacuum insulation panels 2 formed interior of the corpus 1 a here and preferably integrally executed, here and preferably only on one side open inner container 13 is arranged, wherein from the inner container 13 the inner walls of a receiving space 14 are formed for stored goods. The inner container 13 may have the carrier or drawer insertions commonly used for a refrigerator.

This construction is realized in a similar form also in the cooling device mentioned in the prior art.

For the preferred application here for cooling appliances, especially in the household sector, the design of the inner container is recommended 13 of plastic, in particular of a plastic approved for the storage of foodstuffs. In principle, however, a design made of metal is conceivable.

The body according to the invention 1 is due to the illustrated construction so stable that it is able to provide the complete stability of a housing of a classic cooling unit. Therefore, it can be provided in another variant that the body 1 forming vacuum insulation panels 2 on its outside and there, where clamping means 3 are present on the outside of the or the clamping means 3 , is provided with an outer shell, wherein, preferably, the outer shell consists of a thin sheet metal or a thin plastic jacket. You can do that in 5 well imagine. A thin, lightweight outer shell of thin sheet metal or a thin plastic material covers the clamping devices 3 . 6 and all open spaces. Is then located, as in 7 shown, another support frame 7 with hinges 8th on the open side of the body 1 , so you can easily there directly the front closing door 10 Attach.

A thin, lightweight outer shell, as previously explained, can be used in particular even if the body 1 forming vacuum insulation panels 2 according to 3 by a foam 2 ' firmly connected to each other and fixed against each other.

A thin outer cover or cover can also be applied from a thin plastic foam on the spot. For this purpose, a little foaming formulated polyurethane spray foam is recommended.

8th and 9 show a slightly different construction. Here is a slightly more stable outer case 9 provided, but also does not have to have the structural stability of classic housing of refrigerators.

8th and 9 show a preferred embodiment of a complete cooling device according to the invention with the outer housing 9 , the door 10 and the body 1 , The inner container 13 ( 9 ) covers the front edges of the vacuum insulation panels 2 of the body 1 from. Likewise (in comparison of 8th and 9 recognizable) the vacuum insulation panel 11 at the door 10 a corresponding thin-walled cover 15 , preferably also from a plastic approved for the storage of foodstuffs.

In 9 you can see on the inside of the door 10 outside around the vacuum insulation panel 11 further encircling a seal 16 for the production of an optimally tight closure also on the door 10 ,

Typically, vacuum insulation panels have 2 ; 5 ; 11 in the construction according to the invention has a thickness of 10 mm to 80 mm, preferably from 30 mm to 60 mm, most preferably from 35 mm to 50 mm. In the illustrated embodiment can be expected with a thickness of 40 mm throughout.

In principle, one can for the invention vacuum insulation panels 2 ; 5 ; 11 use with all types of cores. However, in the design of a heat-insulating body is particularly preferred 1 according to the invention, that the body forming the vacuum insulation panels 2 ; 5 ; 11 each having a core of open-cell foam, preferably based on polyurethane or polystyrene, and an airtight shell, preferably of a multilayer high-barrier film, and that the shell is glued to the core. When using an open cell foam for the core of the vacuum insulation panel 2 ; 5 ; 11 remains the outer shape of the vacuum insulation panel 2 ; 5 ; 11 even if the case is unexpectedly damaged. The vacuum insulation panel 2 ; 5 ; 11 can thus continue to fulfill its function in the body, even if its heat insulating effect has become less.

In the 8th and 9 illustrated embodiments of a cooling unit each have a body open on one side body 1 according to the invention, wherein here also a body 1 enclosing outer housing 9 is provided.

Basically, refrigerators of the type in question can also be constructed so that the body 1 has no additional outer housing. In this case, however, the thin outer cover or cover already described above should be provided to protect the outer surfaces.

Overall, one should provide that the maximum total wall thickness of the walls of the carcass 1 at most 1.5 times, preferably at most 1.2 times, the maximum thickness of the vacuum insulation panels 2 of the corpus 1 is. At a thickness of the vacuum insulation panel 2 in the example case of 40 mm then the walls of the body would have a maximum thickness of 60 mm, preferably of just under 50 mm.

In a prior art refrigerator / freezer combination, one can also provide that the body of the refrigerator has a total of two areas. In the area intended for cooling, classic insulation is sufficient. In the area of the body, which is intended for the Tiefkühlfunktion, is a carcass 1 used according to the invention.

In the refrigerator according to 8th and 9 is not shown that here, if necessary, a conventional refrigeration unit is provided. This one will eventually be on the back wall of the body 1 position, with the vacuum insulation panel shown there 5 then may have the appropriate bushings for lines.

10 and 11 show a further embodiment of a cooling device according to the invention, which is characterized in that here in a special way a place for a refrigeration unit 17 and an external heat exchanger 18 is provided. This cooling unit is under the body 1 who is here like at 8th and 9 in an outer casing 9 is located and its recording room 14 in front through a door 10 closed, a pedestal 19 provided, with ventilation slots 20 is provided. In the pedestal 19 Dashed line is the refrigeration unit arranged there 17 (Compressor) indicated. A corresponding, belonging to the refrigeration cycle evaporator is either in the receiving space 14 of the body 1 arranged or is also in the pedestal 19 or in a header (see the prior art explained at the beginning of the description). Front on the pedestal 19 you can see control buttons 21 and a display 22 ,

In principle, the refrigeration unit 17 also be housed in a header.

11 shows in conjunction with 10 a special feature to the effect that here the heat exchanger 18 at the base 19 attached, but essentially at the back of the carcass 1 or the outer housing 9 is arranged. The carrying function for the external heat exchanger 18 So is the stably constructed pedestal 19 done. The heat exchanger 18 does not have to be on the body of the refrigerator, the body 1 from vacuum insulation panels 2 is formed, hung up. To have a large heat exchange surface, there is the heat exchanger 18 but still large on the back of the body 1 or the outer housing 9 ,

A similar construction can also be realized on a possibly existing head piece.

LIST OF REFERENCE NUMBERS

1

Body, heat-insulating

2

Vacuum insulation panel (VIP)

2 '

foam casing

3

clamping means

4

Edge protection element

5

another vacuum insulation panel

6

another clamping device

7

support frame

8th

hinge

9

outer casing

10

door

11

Vacuum insulation panel on 10

12

recess

13

inner container

14

accommodation space

15

cover

16

poetry

17

refrigeration unit

18

heat exchangers

19

base

20

vents

21

Control buttons

22

display

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 102010042235 A1 [0007]
• WO 2008/137889 A1 [0016]
• WO 2004/104498 A2 [0016, 0017]
• EP 2221569 A1 [0047]

Claims (26)

Heat-insulating body ( 1 ) for a refrigerator, characterized in that the body ( 1 ) with side walls arranged in the form of a frame ( 2 ) and one of the side walls ( 2 ) frame formed on one side closing back wall ( 5 ) or one of the side walls ( 2 ) frame is designed on one side closing floor, that the side walls ( 2 ) structuring of plate-shaped vacuum insulation panels ( 2 ) are formed and that the side walls ( 2 ) forming vacuum insulation panels ( 2 ) are fixed in their mutual relative position such that they together with the rear wall ( 5 ) the overall stable body ( 1 ) form. Body according to claim 1, characterized in that the vacuum insulation panels ( 2 ) are firmly connected by gluing together and thereby fixed in their relative position. Body according to claim 1 or 2, characterized in that the vacuum insulation panels ( 2 ) by a foam ( 2 ' ) having a layer thickness of preferably less than 5 mm, in particular a foam ( 2 ' ) made of polyurethane, firmly connected to each other and thereby fixed in their relative position. Body according to one of claims 1 to 3, characterized in that the plate-shaped vacuum insulation panels ( 2 ) - run with smooth edges and in pairs against each other either with two edges buttocks or protruding freely arranged both edges and / or - running with smooth edges and abutting one edge blunt abutting at the other edge are freely protruding and / or - Made with, preferably at 45 ° miter, bevelled edges and arranged abutting one another on miter. Body according to one of claims 1 to 4, characterized in that the vacuum insulation panels ( 2 ) with at least one clamping device ( 3 ) are clamped together and thereby fixed in their relative position. Body according to claim 5, characterized in that at least two mutually spaced clamping means ( 3 ) are provided and that, preferably, in each case a clamping means ( 3 ) near one of the peripheral edges of the body ( 1 ) is arranged. Body according to claim 5 or 6, characterized in that the tensioning means ( 3 ) about the arranged in the form of a frame vacuum insulation panel ( 2 ) circumferential tensioning strap or tensioning rope, a U-shaped tensioning clamp or one on the vacuum insulation panels ( 2 ) shrunk shrink film and that in the presence of multiple clamping means ( 3 ) optionally different types of clamping devices ( 3 ) are used together. Body according to one of claims 5 to 7, characterized in that the edges of the vacuum insulation panels ( 2 ) with edge protection elements ( 4 ), preferably made of plastic, between the vacuum insulation panels ( 2 ) and the tensioning means ( 3 ) or the clamping devices ( 3 ) are arranged. Body according to one of claims 1 to 8, characterized in that for the formation of the rear wall ( 5 ) or the bottom of the body ( 1 ) another vacuum insulation panel ( 5 ) transversely to the arranged in the form of a frame vacuum insulation panels ( 2 ) and that the further vacuum insulation panel ( 5 ) in its length and width of the outer length and outer width of the vacuum insulation panels ( 2 ), or, preferably, is slightly larger. Body according to claim 9, characterized in that the edge protection elements ( 4 ) except for the further vacuum insulation panel ( 5 ), so that the further vacuum insulation panel ( 5 ) together with the arranged in the form of a frame vacuum insulation panels ( 2 ) is braced. Body according to one of claims 1 to 8, characterized in that for the formation of the rear wall ( 5 ) or the bottom of the body ( 1 ) another vacuum insulation panel ( 5 ) transversely to the arranged in the form of a frame vacuum insulation panels ( 2 ) and that the further vacuum insulation panel ( 5 ) inside of the vacuum insulation panels ( 2 ) is arranged and in its length and width of the free inner length and inner width of the vacuum insulation panels ( 2 ), or, preferably, is slightly larger. Body according to one of claims 1 to 11, characterized in that the gap defining edges or surfaces of the vacuum insulation panels ( 2 ; 5 ) With additional sealing means, in particular with sealing surfaces or sealing strips are provided and / or that joints between the vacuum insulation panels ( 2 ; 5 ) are sealed to the outside in a water vapor-tight manner, for example with a foil strip. Body according to one of claims 1 to 12, characterized in that on an open side of the body ( 1 ) inside of the vacuum insulation panels ( 2 ) formed a rigid support frame ( 7 ) is arranged, wherein the support frame ( 7 ) as an abutment for the clamping means arranged here ( 3 ) acts externally applied forces. Body according to one of claims 1 to 13, characterized in that on the rear wall ( 5 ) or the bottom opposite edge of the body ( 1 ) a door closing the existing opening here ( 10 ) or an existing here existing opening lid is arranged and that, preferably, the door ( 10 ) or the lid with at least one vacuum insulation panel ( 11 ) or formed by at least one vacuum insulation panel. Body according to claims 13 and 14, characterized in that the door ( 10 ) or the lid with hinges ( 8th ) on the support frame ( 7 ) is pivotally mounted. Body according to claim 9 and optionally one of claims 10 to 15, characterized in that the further vacuum insulation panel ( 5 ) an edge-side recess ( 12 ) for the passage of lines o. The like. And / or that at least one line is guided over a certain distance in a heat-insulated gap between two vacuum insulation panels. Body according to one of claims 1 to 16, characterized in that in the of the vacuum insulation panels ( 2 ; 5 ) formed interior of the body ( 1 ) a preferably integrally executed, preferably only on one side open inner container ( 13 ) is arranged, wherein from the inner container ( 13 ) the inner walls of a receiving space ( 14 ) are formed for stored goods, wherein, preferably, the inner container ( 13 ) consists of plastic, in particular a permitted for the storage of food plastic. Body according to one of claims 1 to 17, characterized in that the body ( 1 ) forming vacuum insulation panels ( 2 ; 5 ) is provided on its outside with an outer shell or cover, wherein, preferably, the outer shell or cover of a thin metal sheet, a thin plastic shell, a thin plastic spray foam layer, o. The like. Is. Body according to one of claims 1 to 18, characterized in that the vacuum insulation panels ( 2 ; 5 ; 11 ) have a thickness of 10 mm to 80 mm, preferably from 30 mm to 60 mm, most preferably from 35 mm to 50 mm. Body according to one of claims 1 to 19, characterized in that the vacuum insulation panels ( 2 ; 5 ; 11 ) each having a core of an open-cell foam, preferably based on polyurethane or polystyrene, and an airtight envelope, preferably of a multilayer high barrier film, and that the shell is glued to the core. Refrigerator with a body open on one side ( 1 ), one of the body ( 1 ) receiving space ( 14 ) for stored goods, with one or the body ( 1 ) door closing on the open side ( 10 ) or cover and preferably with a cooling unit, wherein the body ( 1 ) has heat-insulating walls, characterized in that the body ( 1 ) is executed according to one or more of claims 1 to 19 and optionally a the body ( 1 ) with the exception of a door ( 10 ) or a cover closed opening enclosing outer housing ( 9 ) having. Refrigerator according to claim 21, characterized in that the maximum total wall thickness of the walls of the body ( 1 ) at most 1.5 times, preferably at most 1.2 times, the maximum thickness of the vacuum insulation panels ( 2 . 5 ) of the body ( 1 ) is. Refrigerator according to claim 21 or 22, characterized in that the cooling device is a refrigerator, a freezer, a refrigerator and freezer, a freezer, a freezer, or a passive cooling container. Cooling device according to claim 23, characterized in that the cooling device is designed as a cooling and freezing combination with a cooling section and a freezing section and only in the freezing section a body ( 1 ) according to one or more of claims 1 to 15. Refrigerator according to one of claims 21 to 24, wherein the cooling device is a refrigeration unit ( 17 ) and an external heat exchanger ( 18 ), characterized in that the cooling device below the body ( 1 ) a socket ( 19 ) or on the Body ( 1 ) has a head piece in which at least the refrigeration unit ( 17 ) is arranged. Refrigerator according to claim 25, characterized in that the heat exchanger ( 18 ) on the base ( 19 ) or attached to the header but located substantially at the rear of the body forming insert.

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