EP2317259A2 - Substructure group element for a fridge and/or freezer and fridge and/or freezer - Google Patents

Abstract

The element (10) has an air inlet (12), an air outlet, and an air guiding unit that guides air from the air inlet to the air outlet. A condenser e.g. spiral condenser or coiled wire tube condenser, is arranged in side channels (14, 18) of the air guiding unit and at an edge side in side regions of the element. A ventilator is arranged in the air guiding unit downstream or upstream of the condenser. The air guiding unit expands to a receiver space (16) for a compressor, and has a cover made from metallic material. Receivers for the compressor are provided in the receiver space.

Description

The present invention relates to a subassembly element for a refrigerator and / or freezer as well as a refrigerator and / or freezer.

In refrigerators, in which the refrigeration unit, the fan and the condenser is arranged in the device base, usually a so-called subassembly is formed, which is then bolted to the already foamed device housing or the body. This is relatively expensive, since the relatively heavy subassembly must be bolted to the foamed device housing.

Another disadvantage is further that these devices have a so-called horizontal air flow, ie that in these devices an abrupt change in the air ducting direction is present, such as caused by a baffle plate, which causes a forced deflection in the vertical direction of the incoming air. It thus comes to an uneven flow through the condenser and also to an uneven Kühlluftbeaufschlagung the compressor. Furthermore, flow losses occur in that an unguided deflection up to 180 ° from the fan via condenser to the compressor and to the front air outlet. The heat exchange is thus very ineffective.

From the DE 297 01 474 U1 already a cooling device is known that has a device base with a wide air inlet channel and a parallel thereto arranged wide air outlet channel. Air inlet side, however, the inflowing air is deflected in a Z-shape, ie that the air flows in a first horizontal plane through the front panel, then is deflected abruptly via a Umlenkwandung in a second horizontal plane and is guided on this second horizontal plane through the device base. The air outlet from the device base also takes place after Z-shaped deflection, so that this device base has a horizontal air flow, which as already indicated above is disadvantageous due to the flow losses.

The EP 0 650 680 B1 discloses a base for a built-in refrigerator, which is placed on support rails with feet and is arranged in a furniture niche. This base is formed trough-like and has no separate air duct, so that the air flowing in front is also swirled for cooling purposes in the flow through the base and thus high flow losses occur.

From the DE 44 45 286 A1 Furthermore, a device base through which cooling air flows is known, which guides the air through the base like a labyrinth. This multiple deflection also leads to considerable flow losses, which usually have to be compensated by an increased speed of the fan.

From the EP 0 444 461 A2 is a device base is known in which the air is guided on one side of the base via an inlet channel in the rear engine room, there kinking without further guidance by 90 ° through the engine room and then again by 90 ° kinking leaves the device base on the air outlet.

It is therefore the object of the present invention to develop a subassembly of the type mentioned in an advantageous manner, in particular to the effect that a subassembly element is simple in construction, has an improved flow guidance of the cooling air and is preferably easy to assemble.

This object is achieved by a subassembly element with the features of claim 1. Thereafter, it is provided that a subassembly element for a refrigerator and / or freezer has a front side, a back and two side areas, at least one air inlet and at least one air outlet, wherein at least an air guide means is provided in the subassembly, by means of which air in the subassembly from the air inlet to the air outlet is feasible and wherein at least one heat exchanger is arranged in a part of the air guide means, which is located on the edge side in the side regions of the subassembly.

Furthermore, it can be provided that at least one fan is arranged downstream or upstream of the at least one heat exchanger in the air guide element.

It is also possible that the heat exchanger is a condenser, in particular a spiral condenser, a wire tube condenser designed as a molded part or a coiled wire tube condenser.

It is conceivable advantageously that the air guide means expands to a receiving space for a compressor, wherein fastening means, in particular fastening receivers for the compressor are provided in the receiving space.

It can be provided that the fan is arranged downstream of the heat exchanger and / or at the point in the air guide means, at which the air guide means expands to the receiving space.

Moreover, it is possible that the subassembly has a recess for receiving and / or fixing the inner container of the refrigerator and / or freezer. As a result, a simple assembly of the subassembly element with the inner container is possible. Because the recess can be used as an adhesive surface, which surrounds a part of the inner container and is glued by filling the thermal insulation material, preferably the Isolierschaumes with the inner container. Screwing the subassembly with the already foamed device housing is thus unnecessary, an assembly of the subassembly with the inner container and the outer wall is easily possible by the already to be performed foaming.

Furthermore, it can be provided that the recess is arranged centrally or centrally and / or that the recess is formed like a trough on the upper side in the subassembly element. This results in the advantage of being able to easily insert the inner container into the recess, possibly with spacers for positioning in preparation for the assembly. Advantageously, foam is then injected in the region between the recess and the inner container, which preferably has a shape adapted to the shape of the recess, so that the non-assembly element and the inner container are connected to one another.

Furthermore, it is conceivable that the air guiding means, starting from the air inlet, extends laterally past the recess over the receiving space located in the rear region of the subassembly element to the air outlet, preferably in the part of the air guiding means emanating from the air inlet Heat exchanger is arranged and wherein at the same time in the part of the air guiding means that leads to the air outlet, a further heat exchanger is arranged.

In addition, it can be provided that the air guide means is channel-like and / or that the air guide means at least partially a round, oval or rectangular cross section, wherein preferably the oval or rectangular cross section of the air guide means is vertically aligned. A vertical alignment of the oval or rectangular cross-section is advantageously achieved in that the height of the air guiding means at this point is greater than the width.

It is particularly advantageous if the subassembly element is a device base and / or an injection molded part. The injection molding process enables a simple and cost-effective production. It is preferred if an impact-resistant plastic is used for this purpose.

It is also conceivable that the peripheral parts of the air guiding means are partially formed by a side cover, wherein preferably the side cover have one or more winding mandrel for winding a heat exchanger tube and further preferably, the side cover is made of a metallic material.

In addition, it is possible that the sub-assembly element has a rear wall cover, which forms a closed air guide path in connection with the air guide means.

Furthermore, it can be provided that a condensation-collecting tray or an evaporation tray is provided, wherein the condensation-collecting tray or the evaporation tray is arranged in a front area of the sub-assembly element and / or in a front-accessible area of the subassembly. This has the advantage that the condensate collecting tray or the evaporation tray can be easily removed and emptied. After emptying, a simple insertion into the sub-assembly element can take place. This is particularly advantageous for hygienic reasons, since a lingering of liquid in the debris drip tray or the evaporation tray can be avoided thereby.

For example, the condensate collecting tray or the evaporation tray can be integrated in the lateral cover of the subassembly element and designed to be laterally removable and replaceable. A lateral removal for cleaning purposes is advantageous and easily possible.

It can be provided that the subassembly element is designed such that the at least one condenser can be pushed in at the front. This results in the advantage of being able to realize a cost-effective installation of the condenser, since it is sufficient to insert a condenser die through the air inlet or the air outlet in the or the lateral air ducts of the subassembly element and there z. B. positively secured by locking.

Furthermore, the invention relates to a refrigerator and / or freezer with the features of claim 13. Thereafter, it is provided that a refrigerator and / or freezer has at least one subassembly element according to claim 1 to 12. The refrigerator and / or freezer may be a fully integrated base unit used in a fitted kitchen. Further, it is conceivable that the refrigerator and / or freezer is a dekorfähiges base unit or a built-under drawer unit. Also conceivable is the use in stationary devices.

It is also conceivable that the refrigerator and / or freezer is a side-by-side device.

It is particularly advantageous if the devices arranged side by side of the side-by-side device each have a subassembly element and that the subassembly elements are mirror-inverted and / or usable with respect to one another.

Further details and advantages of the invention will be explained below with reference to an embodiment shown in the drawing.

Figur 1:

eine perspektivische Rückansicht eines Unterbaugruppenelements;

Figur 2:

eine schematische Draufsicht eines Unterbaugruppenelements;

Figur 3:

eine weitere perspektivische Ansicht des Unterbaugruppenelements;

Figur 4:

eine weitere schematische Draufsicht eines Unterbaugruppenelements;

Figur 5:

eine weitere schematische Draufsicht eines Unterbaugruppenelements;

Figur 6;

eine schematische Draufsicht zweier Unterbaugruppenelemente für ein Side-by-Side-Gerät;

Figur 7:

eine perspektivische Ansicht eines Seitenteils eines Unterbaugruppen- elements;

Figur 8:

eine perspektivische Ansicht einer Seitenabdeckung für ein Seitenteil eines Unterbaugruppenelements;

Figur 9:

eine perspektivische Ansicht eines Unterbaugruppenelements mit seitlich entnehmbarer Verdunstungsschale;

Figur 10:

eine perspektivische Ansicht der Verdunstungsschale; und

Figur 11:

eine weitere schematische Draufsicht eines Unterbaugruppenelements.

Show it:

FIG. 1:

a rear perspective view of a subassembly element;

FIG. 2:

a schematic plan view of a subassembly element;

FIG. 3:

another perspective view of the subassembly element;

FIG. 4:

another schematic plan view of a subassembly element;

FIG. 5:

another schematic plan view of a subassembly element;

Figure 6;

a schematic plan view of two subassembly elements for a side-by-side device;

FIG. 7:

a perspective view of a side part of a subassembly element;

FIG. 8:

a perspective view of a side cover for a side part of a subassembly element;

FIG. 9:

a perspective view of a subassembly element with laterally removable evaporation tray;

FIG. 10:

a perspective view of the evaporation tray; and

FIG. 11:

another schematic plan view of a subassembly element.

FIG. 1 shows in perspective rear view a subassembly element 10 according to the present invention. The sub-assembly element 10 is designed as a device base 10, which is manufactured in one piece as an injection molded part. In this case, the device base 10 is an injection molded part made of an impact-resistant plastic.

Without this being closer in FIG. 1 is shown, the device base 10 on its underside bearing surfaces, by means of which the device base 10 can be set up directly on the ground. At the same time or alternatively threaded holes can be provided, can be screwed into the feet.

The pallet-like device base 10 has on its upper side a trough-like recess 20 which is provided for receiving the inner container of the refrigerator and / or freezer.

The air inlet for the air L, whose flow path is indicated by the device base 10 by means of corresponding arrows, takes place through the front part 12 or air inlet 12 of the air guiding means, which is widened at this point. In the lateral section 14 of the air guide means or air duct, the air guide means or the air duct narrows in width, but widens slightly in the vertical direction, since the bottom 15 of the lateral section 14 drops slightly obliquely downwards.

The air L is thus guided starting from the air inlet 12 substantially horizontally and without abrupt change in direction relative to the vertical through the lateral section 14 of the air duct to the engine room 16, which is formed by a widening of the air duct in the rear part of the device base 10.

After the flow through the engine room 16, the air L heated there enters the side partial section 18 of the air duct on the other side, so that the air past the recess 20 does not pass in FIG. 1 apparent air outlet 19 is performed.

The in FIG. 1 shown structure is again schematically in FIG. 2 shown, which is a schematic plan view of the device base 10. Continue in addition FIG. 2 can be seen, the device base 10 front with a front panel 40 are provided, which can be pushed depth-adjustable by means of lateral projections 42 on the device base 10. This allows adjustability and adaptability of the front panel 40 to the respective installation situation. In particular, with built-in appliances a simple depth adjustment can be made.

To separate the air inlet 12 and the air outlet 19, d. H. in particular in order to avoid short-circuit currents, an air separation means 30 is provided. The air separation means 30 may be formed by corresponding projections 44 in the front panel 40, which engage in a corresponding recess 22 in the device base 10. Alternatively or at the same time it can be provided that the air separation means 30 comprises a foam molding 32, which is inserted between the projections 44 and the recess 22 and is held there by clamping.

In the engine room 16 is further a fastening means 17 for the compressor 70 (see. FIG. 3 ) intended. The fastener 17 may be a recess or receptacle into which the compressor 70 may be inserted to facilitate easy and quick assembly.

In FIG. 3 and 4 is that already schematic in FIG. 2 shown subassembly element 10 with further mounted components of a refrigerator and / or freezer shown, with reference to this figure, the operation of the device base 10 can be explained in detail. Identical components or features are also provided with the same reference numerals.

Cold ambient air L enters the air inlet 12 of the device base 10 through oblique lamellae in the front panel 40 and then flows through the side channel 14, which has a substantially rectangular cross-section with a vertical orientation, that is higher than it is wide. The air L is guided in the channel 14 to the condenser 50 and cools it.

Downstream of the condenser 50 is preferably a fan 60 is provided (see also FIG. 4 and 5 ), which circulates the air L through the device base 10. The fan 60 may alternatively also be arranged in the machine room 16 and continues to act on the compressor, which is received in the holder 17, with the air L guided past the condenser 50, so that optimum heat removal from the compressor can also take place. After the compressor, the air L enters the side channel 18, which is constructed equal to the side channel 14, in particular is formed symmetrically to this. Through the side channel 18, the air L is guided through the further condenser 50 'to the air outlet 19 and exits there via the slats of the here hidden front panel 40.

Due to the vertical orientation of the side channels 14 and 18 is achieved that the actual air inflow takes place substantially at the outboard part of the air inlet 12, while the outflow of heated in the device base 10 air L takes place at the outboard part of the air outlet 19. The inflowing cold air flow L and the outflowing warm air flow L are thus maximally spaced from each other.

Furthermore, the air flow is guided essentially on a horizontal plane, whereby flow losses can be avoided. Air inlet and outlet and air duct in the device base 10 are horizontal on the same plane, the expansion in the side channels 14 and 18 is neglected in this regard. It thus takes place according to the invention no deflection of the air flow relative to the vertical, which is why the flow resistance is kept small. This makes it possible to operate the fan 60 at a comparatively low speed, so that the noise level during operation can be lowered.

FIG. 5 shows a further embodiment of in FIG. 3 and 4 shown embodiment, which differs in that downstream of the condenser 50, a first fan 60 is arranged in the transition from side channel 15 to the engine room 16 and that a second fan 60 'in the transition from the engine room 16 is arranged to the side channel 18 in order to achieve optimum air circulation in the device base 10.

FIG. 6 shows a schematic plan view of the two device base 10 of a side-by-side device, wherein the device base 10 are each identical, but mirror-inverted with respect to the air guide can be used. Already known from the above-described figures features and components are provided with the same reference numerals. At the in FIG. 6 illustrated embodiment of a side-by-side device flows in the device base 10 shown on the right, the air as already in connection with FIGS. 3 to 5 described by the inlet 12 via the side channel 14 arranged in the condenser 50, wherein downstream of the condenser 50, a fan 60 is arranged. When left-side device base 10 is mirror-inverted process. Thus, in the in FIG. 6 illustrated side-by-side device, the inlets 12 respectively outboard and the air outlets 19 arranged inside. Short-circuit air flows are thus advantageously avoided.

FIG. 7 shows a perspective view of a side wall for a device base 10, wherein in the side wall, a cover 100 is inserted, can be used as an additional heat exchanger. The cover 100 is further in FIG. 8 shown without the side wall and preferably designed for improved heat absorption of metal and communicates with the condenser 50 in heat-conducting contact. The cover 100 can be designed as a metal part with inserted tabs and be adhesively sealed by means of an adhesive film with the side wall so that the side wall and cover provide an airtight wall. The cover 100 may, for. B. be a continuous casting, a Dünngussteil or a zinc diecasting.

FIG. 9 shows a perspective view of a portion of a subassembly element 10 in a further embodiment, wherein the evaporation tray 110 'is integrated into a side cover 100' of the subassembly 10 and made laterally removable and reinsertable. The evaporation tray 110 'is accessible from the front and can be easily removed for cleaning purposes and then used again. In this case, the outer wall 112 'of the evaporation tray 110' itself forms the outer wall of the lateral cover 100 'of the subassembly element 10. As in further FIG. 9 shown, behind the evaporation tray 110 ', a condenser 50 is arranged, which can be inserted into the front sub-assembly element 10, here through the air outlet 19th

FIG. 10 shows in perspective the in FIG. 9 illustrated evaporation tray 110 '. As shown here, the evaporation tray 110 'has a plurality of latching elements 120', by means of which the evaporation tray 110 'can be latched in the subassembly 10.

FIG. 11 shows in a schematic plan view of the sub-assembly element 10, as in FIG. 9 shown condenser 50 is disposed on both sides in the lateral channels of the subassembly 10 and each can be inserted through the front side through the air inlet 12 and through the air outlet 19. Each condenser 50 is assigned a respective fan 60.

Claims (15)

A subassembly (10) for a refrigerator and / or freezer, the subassembly (10) having a front, back and two side portions, at least one air inlet (12) and at least one air outlet (19), and wherein at least one air guide means in the subassembly (10) is provided, by means of which air in the subassembly element (10) from the air inlet (12) to the air outlet (19) is feasible,
characterized,
in that at least one heat exchanger (50, 50 ') is arranged in a part (14, 18) of the air guiding means, which is situated on the edge side in the side regions of the subassembly (10). Sub-assembly element (10) according to claim 1, characterized in that downstream or upstream of the at least one heat exchanger (50, 50 ') in the air guide element at least one fan (60) is arranged. Subassembly (10) according to claim 1 or 2, characterized in that the heat exchanger (50, 50 ') is a condenser (50, 50'), in particular a spiral condenser, a molded wire tube condenser or a coiled wire tube condenser. Subassembly (10) according to any one of the preceding claims, characterized in that the air guide means to a receiving space (16) for a compressor expands, wherein in the receiving space (16) fastening means, in particular fastening receptacles (17) are provided for the compressor. Subassembly (10) according to claim 4, characterized in that the fan (60, 60 ') is arranged downstream of the heat exchanger (50, 50') and / or at the point in the air guide means, at which the air guide means to the receiving space (16) expands. Subassembly (10) according to one of the preceding claims, characterized in that the subassembly element (10) has a recess (20) for receiving and / or fixing the inner container of the refrigerator and / or freezer. Subassembly (10) according to claim 6, characterized in that the recess (20) is arranged centrally or centrally and / or that the recess (20) is trough-shaped on the upper side in the subassembly element (10). Subassembly (10) according to one of claims 6 or 7, characterized in that the air guide means starting from the air inlet (12) laterally past the recess (20) over the in the rear region the receiving assembly space (16) located in the sub-assembly element (10) again extends laterally past the recess (20) to the air outlet (19), wherein preferably in the part of the air-guiding means, which emanates from the air inlet (12), a heat exchanger (50) is arranged and wherein at the same time in the part of the air guiding means that leads to the air outlet (19), a further heat exchanger (50 ') is arranged. Subassembly (10) according to one of the preceding claims, characterized in that the air guide means is channel-like and / or that the air guide means at least partially has a round, oval or rectangular cross-section, wherein preferably the oval or rectangular cross-section of the air guide means is vertically aligned and / or that the subassembly element (10) is a device base (10) and / or an injection molded part. Subassembly (10) according to one of the preceding claims, characterized in that the peripheral parts of the air guide means are partially formed by a side cover (100), preferably wherein the side cover (100) one or more winding mandrels for winding a heat exchanger tube and further Preferably, the side cover (100) is made of a metallic material. Subassembly (10) according to one of the preceding claims, characterized in that the subassembly element (10) has a rear wall cover which forms a closed air guide path in connection with the air guide means and / or a condensation water tray (110 ') or an evaporation tray (110') is provided, wherein the condensate collecting tray (110 ') or the evaporation tray (110') in a front region of the subassembly element (10) and / or in a front accessible area of the subassembly element (10) is arranged. Subassembly (10) according to one of claims 3 to 11, characterized in that the subassembly (10) is formed such that the at least one condenser (50) is frontally insertable. Cooling and / or freezing appliance with at least one subassembly element (10) according to claims 1 to 12. Refrigerator and / or freezer according to claim 13, characterized in that the refrigerator and / or freezer is a side-by-side device. Cooling and / or freezing appliance according to claim 14, characterized in that the juxtaposed devices of the side-by-side device each having a subassembly element (10) and that the subassembly elements (10) mutually mirrored formed and / or used.

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