DE102009056423A1 - Subassembly element for a refrigerator and / or freezer and refrigerator and / or freezer - Google Patents

Abstract

The present invention relates to a sub-assembly element for a refrigerator and / or freezer, wherein the sub-assembly element has a front side, a rear side and two side regions, at least one air inlet and at least one air outlet and wherein at least one air guide means is provided in the subassembly by means of which air in Subassembly element from the air inlet to the air outlet is feasible. Furthermore, the invention relates to a refrigerator and / or freezer.

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 also that these devices have a so-called horizontal air flow, d. H. that in these devices, an abrupt change in the direction of air flow is present, for example due to a baffle, 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 as a result of an unguided deflection of up to 180 ° from the fan via the 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 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 the 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 be made 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 may be provided 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. 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 assembly of the liquefaction, 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 15. Thereafter, it is provided that a refrigerator and / or freezer has at least one subassembly element according to claim 1 to 14. The refrigerator and / or freezer can a fully integrated substructure, which is 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.

Show it:

1 a perspective rear view of a subassembly element;

2 a schematic plan view of a subassembly element;

3 a further perspective view of the subassembly element;

4 FIG. 3 is another schematic plan view of a sub-assembly element; FIG.

5 FIG. 3 is another schematic plan view of a sub-assembly element; FIG.

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

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

8th in: a perspective view of a side cover for a side part of a sub-assembly element;

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

10 a perspective view of the evaporation tray; and

11 : Another schematic plan view of a subassembly element.

1 shows in perspective rear view of a subassembly element 10 according to the present invention. The subassembly element 10 is as a device socket 10 executed, which is made in one piece as an injection molded part. This is the device base 10 an injection-molded part made of impact-resistant plastic.

Without this being closer in 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 floor. 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 on, which is intended for receiving the inner container of the refrigerator and / or freezer.

The air inlet for the air L, whose flow path through the device base 10 indicated by corresponding arrows, carried by the front part 12 or air intake 12 the air guidance means, which is widened at this point. In the lateral section 14 the air guide means or air duct narrows the air guide means or the air duct in width, however, widens slightly in the vertical direction, since the ground 15 of the lateral section 14 slightly sloping downwards.

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

After the flow through the engine room 16 the heated air L enters the side section on the other side 18 the air duct, so that the air at the recess 20 over to not in 1 apparent air outlet 19 to be led.

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

To the air intake 12 and the air outlet 19 to separate, ie in particular to avoid short-circuit currents, is an air release agent 30 intended. The air release agent 30 can by appropriate projections 44 in the front panel 40 be formed in a corresponding recess 22 in the device socket 10 intervention. Alternatively or at the same time it can be provided that the air release agent 30 a foam molding 32 that covers between the protrusions 44 and the recess 22 is used and is held there clamped.

In the engine room 16 is still a fastener 17 for the compressor 70 (see. 3 ) intended. The fastener 17 may be a recess or receptacle into which the compressor 70 can be used to allow easy and quick installation.

In 3 and 4 is that already schematic in 2 shown subassembly element 10 shown with further assembled components of a refrigerator and / or freezer, 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 through oblique fins in the front panel 40 in the air intake 12 of the device base 10 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 in the channel 14 on the liquefier 50 guided and cools this.

Downstream of the condenser 50 is preferably a fan 60 provided (see also 4 and 5 ), the air L through the device base 10 circulate. The ventilator 60 can alternatively also in the engine room 16 be arranged and continues to act on the compressor, which is in the holder 17 is added, with the liquefying 50 passing air L, so that an optimal heat dissipation from the compressor can be done. After the compressor, the air L enters the side channel 18 one equal to the side channel 14 is constructed, in particular symmetrical to this is formed. Through the side channel 18 the air L is liquefied by the further 50 ' to the air outlet 19 guided and occurs there on the slats of the concealed front panel here 40 out.

Due to the vertical orientation of the side channels 14 and 18 It is achieved that the actual air inflow is substantially at the outboard part of the air intake 12 takes place during the outflow in the device base 10 heated air L at the outboard part of the air outlet 19 he follows. 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 as well as air flow in the device base 10 run horizontally at the same level, with the widening in the side channels 14 and 18 neglected in this consideration. 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 will make it possible for the fan 60 operate at a comparatively low speed, so that the noise level during operation can be reduced.

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

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

7 shows a perspective view of a side wall for a device base 10 , wherein in the side wall a cover 100 is used, can be used as an additional heat exchanger. The cover 100 is more valuable in 8th shown without the side wall and preferably designed for improved heat absorption of metal and communicates with the condenser 50 in thermally conductive contact. The cover 100 can be designed as a metal part with inserted tabs be 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 can z. B. be a continuous casting, a Dünngussteil or a zinc diecasting.

9 shows in perspective a part of a subassembly element 10 in a further embodiment, wherein the evaporation tray 110 ' in a side cover 100 ' of the subassembly element 10 integrated and laterally removable and re-usable is executed. The evaporation tray 110 ' is accessible from the front and can be easily removed for cleaning purposes and then used again. The outer wall 112 ' the evaporation tray 110 ' itself forms the outer wall of the side cover 100 ' of the subassembly element 10 out. As in further 9 is behind the evaporation tray 110 ' a liquefier 50 arranged, the front in the subassembly element 10 can be inserted, here through the air outlet 19 ,

10 shows in perspective the in 9 illustrated evaporation tray 110 ' , As shown here, the evaporation tray 110 ' several locking elements 120 ' on, by means of which the evaporation tray 110 ' in the subassembly element 10 can be locked.

11 shows in a schematic plan view of the subassembly element 10 , in again 9 shown condenser 50 each on both sides in the lateral channels of the subassembly element 10 is arranged and in each case front through the air inlet 12 or through the air outlet 19 can be inserted. Every liquefaction 50 is in each case a fan 60 assigned.

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 29701474 U1 [0004]
• EP 0650680 B1 [0005]
• DE 4445286 A1 [0006]
• EP 0444461 A2 [0007]

Claims (17)

Subassembly element ( 10 ) for a refrigerator and / or freezer, wherein the subassembly ( 10 ) a front side, a rear side and two side areas, at least one air inlet ( 12 ) and at least one air outlet ( 19 ) and wherein at least one air guiding means in the subassembly ( 10 ) is provided by means of which air in the subassembly element ( 10 ) from the air intake ( 12 ) to the air outlet ( 19 ) is feasible, characterized in that at least one heat exchanger ( 50 . 50 ' ) in one part ( 14 . 18 ) is arranged of the air guiding means, the edge in the side regions of the subassembly element ( 10 ) is located. Subassembly 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 element ( 10 ) according to claim 1 or 2, characterized in that the heat exchanger ( 50 . 50 ' ) a liquefier ( 50 . 50 ' ), in particular a spiral condenser, a molded wire tube condenser or a coiled wire tube condenser. Subassembly element ( 10 ) according to one of the preceding claims, characterized in that the air guidance means to a receiving space ( 16 ) for a compressor, wherein in the receiving space ( 16 ) Fastening means, in particular fastening receptacles ( 17 ) are provided for the compressor. Subassembly element ( 10 ) according to claim 4, characterized in that the fan ( 60 . 60 ' ) downstream of the heat exchanger ( 50 . 50 ' ) and / or at the location in the air guide means, at which the air guide means to the receiving space ( 16 ) expands. Subassembly element ( 10 ) according to one of the preceding claims, characterized in that the sub-assembly element ( 10 ) a recess ( 20 ) for receiving and / or fixing the inner container of the refrigerator and / or freezer. Subassembly element ( 10 ) according to claim 6, characterized in that the recess ( 20 ) is arranged centrally or centrally and / or that the recess ( 20 ) trough-like in the subassembly element ( 10 ) is formed. Subassembly element ( 10 ) according to one of claims 6 or 7, characterized in that the air guidance means from the air inlet ( 12 ) starting laterally at the recess ( 20 ) over the in the rear region of the subassembly element ( 10 ) receiving space ( 16 ) again laterally at the recess ( 20 ) to the air outlet ( 19 ), preferably in the part of the air guiding means which emanates from the air inlet ( 12 ), a heat exchanger ( 50 ) and at the same time in the part of the air guiding means that to the air outlet ( 19 ), another heat exchanger ( 50 ' ) is arranged. Subassembly element ( 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. Subassembly element ( 10 ) according to one of the preceding claims, characterized in that the sub-assembly element ( 10 ) a device base ( 10 ) and / or an injection molded part. Subassembly element ( 10 ) according to any one of the preceding claims, characterized in that the peripheral parts of the air guiding means partially by a side cover ( 100 ) are formed, wherein preferably the lateral cover ( 100 ) have 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 element ( 10 ) according to one of the preceding claims, characterized in that the sub-assembly element ( 10 ) has a rear wall cover, which forms in connection with the air guide means a closed air guide path. Subassembly element ( 10 ) according to one of the preceding claims, characterized in that a condensation water collecting 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 frontally accessible area of the sub-assembly element ( 10 ) is arranged. Subassembly element ( 10 ) according to one of claims 3 to 13, characterized in that the sub-assembly element ( 10 ) is formed such that the at least one condenser ( 50 ) can be inserted at the front. Cooling and / or freezing appliance with at least one subassembly element ( 10 ) according to claim 1 to 14. Cooling and / or freezing appliance according to claim 15, characterized in that the refrigerator and / or freezer is a side-by-side appliance. Cooling and / or freezing appliance according to claim 16, characterized in that the juxtaposed devices of the side-by-side device each have a subassembly element ( 10 ) and that the subassembly elements ( 10 ) are mutually mirror-inverted and / or usable.

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