DE102011075564A1 - Evaporator for a built-in refrigerator and built-in refrigerator and method for installing a built-in refrigerator - Google Patents

Abstract

The invention relates to an evaporation device (44) for evaporation of defrost water (66) occurring in a built-in refrigerator (54), in particular in a household refrigerator. The evaporation device (44) has an outer evaporation container (46) and a fluid line (50) for guiding defrost water (66) from a housing (52) of the built-in refrigeration device (54) into the outer evaporation container (46). The outer evaporation container (46) and the fluid line (50) are designed to be arranged outside the built-in refrigeration device (54). The invention further relates to a built-in refrigeration device (54) which is equipped with such an evaporation device (44) and to a method for installing such a built-in refrigeration device (54).

Description

The invention relates to an evaporation device for the evaporation of in a built-in refrigerator, in particular a household refrigerator, accumulating defrost water. The invention further relates to a built-in refrigeration device equipped with the evaporation device, in particular domestic refrigeration appliance, and to a method for installing a built-in refrigeration appliance in a niche of a furniture.

A built-in refrigeration appliance is understood to mean a refrigeration appliance which is designed for installation in an installation niche of a piece of furniture. A refrigeration appliance is understood in particular to be a household refrigeration appliance, that is to say a refrigeration appliance used for household purposes or possibly even in the gastronomy sector, and in particular for storing food and / or beverages in household quantities at specific temperatures, such as, for example, a refrigerator, a freezer , a fridge freezer or a wine storage cabinet.

In the interior of refrigerators, such as refrigerators or freezers, created by condensation of humidity on the walls or on a cooling the interior of the refrigerator evaporator defrost water, which must be removed from the interior. This defrost water is collected in an evaporation tank and evaporates into the environment.

Especially with built-in refrigerators, the space available for this evaporation container space is limited. Accordingly, only evaporation tanks with small dimensions and thus small evaporation surfaces can be accommodated in this space. However, this results in only a limited evaporation performance.

The object of the invention is to improve the evaporation performance of evaporation tanks of built-in refrigerators.

This object is achieved with an evaporation device having the features of claim 1.

A built-in refrigerator, which includes this evaporation device, and a method for installing such a built-in refrigeration appliance in a Einbaunische a piece of furniture are the subject of the dependent claims.

Advantageous embodiments of the invention are the subject of the dependent claims.

An evaporation device for evaporating defrosting water accumulating in a built-in refrigeration appliance, in particular a household refrigerating appliance, has an outer evaporation tank and a fluid conduit for directing defrost water from a housing of the built-in refrigeration appliance into the outer evaporation tank, wherein the outer evaporation tank and the fluid conduit are arranged outside the built-in refrigeration appliance (US Pat. hereinafter also referred to as a refrigeration device for short).

Such an evaporation device can thus be easily outside of the housing of the refrigerator and thus outside of an installation niche, in which the housing of a built-in appliance designed as refrigeration device to be installed, are arranged. Thus, the size of the outer evaporation container and thus the evaporation surface and evaporation performance is not dependent on the space that can be provided in the housing or in the installation niche an evaporation container available. The evaporation tank may be located at a completely different location where there is enough space to accommodate a large outer evaporation tank, thus allowing for great evaporation performance. Through the fluid line, the defrost water arising in the refrigeration device is simply diverted into this evaporation container arranged outside.

Preferably, the evaporation device comprises an inner evaporation container formed for placement within the housing, the outer evaporation container and the inner evaporation container being in fluid communication by means of the fluid line.

Thus, advantageously, two evaporation surfaces can be provided, so that the accumulating defrost water in the refrigerator can already be evaporated into the environment and, for example, only defrost water, which exceeds a certain level limit in the inner evaporation container, is discharged into the outer evaporation container to continue there to evaporate.

Advantageously, the inner evaporation container is designed for receiving defrosting water from an interior of the refrigeration appliance. Thus, the defrost water, which is obtained in the interior of the refrigerator, is directed to the inner evaporation container, where it evaporates through a first evaporation surface into the environment. Only when large amounts of defrost water incurred, the defrost water is passed via the fluid line from the inner evaporation tank to the outer evaporation tank, where it then evaporates through a second evaporation surface into the environment.

In an advantageous embodiment, the inner evaporation container has a connection for connecting the fluid line above a maximum fill level. Further advantageously, the fluid line is detachably connected to the connection of the inner evaporation container and / or with a connection designed as a fastening device to the outer evaporation container.

If the connection to the inner evaporation container is arranged relatively high up on the evaporation container, only excess defrosting water advantageously flows into the outer evaporation container. The available first evaporation surface is advantageously utilized to the maximum.

If the fluid line is detachably connected either to the connection to the inner evaporation container or to the connection to the outer evaporation container or to both connections, the outer evaporation container can advantageously be positioned at different locations and then the fluid line can be installed.

Preferably, a second fastening device for the fluid line is provided on the outer evaporation container, which is arranged above the connection designed as a fastening device for connecting the fluid line.

Thus, the fluid line may be attached to the outer evaporation container preferably in two places, so that advantageously a slope can be provided, which ensures that the defrosting water discharged from the inner evaporation container passes largely completely into the volume of the outer evaporation container.

Advantageously, the outer evaporation container has a length of 300 to 500 mm, a width of 300 to 400 mm and a height of 10 to 100 mm. With such dimensions, the outer evaporation tank can be accommodated, for example, in the base area below a standard kitchen cabinet.

The fluid line preferably has a flexible fluid line and / or a hose and / or a plastic molded part. Further advantageously, the total length of the fluid line is between 1.8 m and 2.2 m, in particular between 1.9 m and 2.1 m, and is variable in length in a particularly preferred embodiment.

Thus, the outer evaporation container can be positioned at different locations and easily connected via the flexible fluid line with the housing of the refrigerator or with the inner evaporation container.

If, in addition, in a particularly preferred embodiment, the fluid line is cut to length and / or can be assembled from a plurality of identical sections, the length of the fluid line can be adapted particularly easily to the conditions on site.

It is particularly advantageous if the fluid line has a cross-section that is consistently uniform over its entire length, since the attachment to the connections of the inner and outer evaporation container can thus be carried out without problems even after cutting or lengthening the fluid line sections.

A refrigeration device, in particular a domestic refrigeration appliance, has a housing and an evaporation device described above.

Preferably, the housing is designed for installation in an installation niche in a piece of furniture, in particular in a kitchen furniture. In a particularly preferred embodiment, the outer evaporation container is designed to be arranged outside the installation niche and further an inner evaporation container for arranging within the installation niche. Advantageously, the outer evaporation container is designed to be arranged in a base area below the kitchen cabinet.

With these refinements, an evaporation tank, which has significantly larger dimensions than conventional evaporation tanks existing in built-in refrigerators, be made available for the evaporation of defrost water. This larger evaporation tank can be easily accommodated outside the housing of the refrigerator. Particularly large dimensions can occupy the evaporation container when it is not only housed outside the housing of the refrigerator, but for example outside of the installation niche in the kitchen furniture in which the refrigerator housing is housed. Visually hidden can be the outer evaporation container, if it is advantageously located below the kitchen furniture in the base area, since it is hidden here over a mounted on the kitchen furniture base board.

In an advantageous embodiment, the outer evaporation container is designed to be arranged in an intermediate region between the installation niche and the base region and / or for arranging in a base region below a second kitchen appliance.

Some kitchen furniture have so-called ventilation gaps in the lower area, in that a niche floor is drawn in between the base area and the installation niche. The outer evaporation tank can also be designed in its dimensions, for example, such that it fits exactly into this ventilation gap. Furthermore, it is also possible to arrange the outer evaporation container under a different kitchen furniture than that in which the refrigeration appliance is placed, so that the base area underneath the built-in refrigeration appliance is advantageously available for other applications.

Advantageously, the housing of the refrigeration device has a door, wherein the connection for connecting the fluid line to the outer evaporation container is to be arranged directed towards the door.

Thus, the outer evaporation container can also be advantageously separated by simply removing a pedestal board from the fluid line to then simply emptying a full outer evaporation container, for example.

• a) Bereitstellen eines oben beschriebenen Kältegerätes mit einem äußeren und einem inneren Verdunstungsbehälter;
• b) Bereitstellen eines Möbels, insbesondere eines Küchenmöbels, mit einer Einbaunische und einem Sockelbereich;
• c) Anschließen der Fluidleitung an den Anschluss des inneren Verdunstungsbehälters;
• d) Einbau des Kältegerätes in die Einbaunische, wobei die Fluidleitung entlang eines Spaltes zwischen einer Einbaunischenrückwand und einer Raumwand zu dem Sockelbereich geführt wird;
• e) Anpassen der Länge der Fluidleitung;
• f) Positionieren des äußeren Verdunstungsbehälters in dem Sockelbereich und Anschließen der Fluidleitung an dem Anschluss des äußeren Verdunstungsbehälters.

A method for installing a refrigeration device, in particular a household refrigerator, in a niche of a furniture, in particular a kitchen furniture, comprises the following steps:

• a) providing a refrigeration device described above with an outer and an inner evaporation container;
• b) providing a piece of furniture, in particular a kitchen cabinet, with a niche and a base area;
• c) connecting the fluid line to the connection of the inner evaporation container;
• d) installation of the refrigeration device in the installation niche, wherein the fluid line is guided along a gap between a Einbaunischenrückwand and a room wall to the base area;
• e) adjusting the length of the fluid conduit;
• f) positioning the outer evaporation container in the base region and connecting the fluid line to the connection of the outer evaporation container.

Embodiments of the invention will be explained in more detail with reference to the accompanying drawings. It shows:

1 a closed with a furniture front kitchen furniture with a base area;

2 the kitchen furniture 1 without furniture front;

3 the dimensions of the base area of the kitchen furniture 1 and 2 and the direction of the air flowing in the base region;

4 a kitchen furniture with a retracted between the base area and a niche Zwischenboden;

5 a arranged on a side wall kitchen furniture with a arranged between the base area and niche Zwischenboden;

6 a first embodiment of the arrangement of an outer evaporation container and an inner evaporation container in a kitchen furniture;

7 a second embodiment of the arrangement of the inner and outer evaporation container in a kitchen furniture; and

8th a third embodiment of the arrangement of an inner and outer evaporation container in a kitchen furniture.

1 shows a kitchen furniture 10 with a pedestal area 12 on a room wall 14 is arranged. The kitchen furniture 10 has a front furniture front 16 and in the pedestal area 12 a socket board 18 in the depth direction T of the kitchen cabinet 10 to the furniture front 16 is arranged offset. The socket board 18 closes flush with a floor 20 from and therefore covers in the base area 12 arranged feet 22 , The kitchen furniture 10 is over the feet 22 adjustable in height. The socket board 18 has an opening 24 for ventilation of the base area 12 on.

2 shows the kitchen furniture 10 out 1 without furniture front 16 , In the kitchen furniture 10 is a niche 26 provided for installing a refrigeration device, not shown here. Above the installation niche 26 are in the kitchen furniture 10 additional subjects 28 arranged.

3 is a side view of the kitchen furniture 10 out 1 and 2 to illustrate the dimensions of the base area 12 , A represents the base height, B the base depth and C the niche depth in the base area 12 The pedestal height A is the distance between the floor 20 and a lower degree 30 of the kitchen furniture 10 , The base depth B is the distance between the furniture front 16 and the socket board 18 , The niche depth C is the distance between the furniture front 16 and the room wall 14 , The arrows show the flow of air through the opening 24 in the socket board 18 towards the room wall 14 in the pedestal area 12 , The air can flow vertically upwards and thus for cooling in the installation niche 26 housed components serve, if between the room wall 14 and an in-building rear wall 32 the installation niche 26 A gap 34 remains.

4 shows an alternative embodiment of the kitchen cabinet 10 , The kitchen furniture 10 is here without furniture front 16 shown so that the Interior of the kitchen furniture 10 is recognizable. Again, are above the Einbaunische 26 subjects 28 arranged. In addition is between the installation niche 26 and the pedestal area 12 an intermediate area 36 formed by an intermediate floor 38 in the installation niche 26 is retracted.

5 shows the kitchen furniture 10 according to the embodiment in 4 on a side wall 40 is arranged. Here the ventilation of the installation niche takes place 26 not over a gap 34 between the installation rear wall 32 and the room wall 14 but between a side wall 40 and an inner free space 42 , To the free space 42 to create, are the intermediate floor 38 and the lower end 30 of the kitchen furniture 10 designed shorter than the Einbaunischen back wall 32 , This allows the air to pass unhindered through the opening 24 in the socket board 18 over the base area 12 and the remaining space 42 in the installation niche 26 flow.

The in the 3 and 5 shown flowing air can be used both for cooling of components in the installation niche 26 be accommodated, as well as to absorb moisture from the Einbaunische 26 serve. Next, she can also use components in the pedestal area 12 or in the intermediate area 36 are arranged, cool and dehumidify.

Generally, the in 3 For example, the base height A is usually between 70 mm to 200 mm variable, as well as the base depth B is usually between 30 mm and 100 mm variable. The ventilation cross section in the base board 18 is about 200 cm ² and has a ventilation grille 43 on, whose altitude and embodiment is also variable. The niche depth C is at least 550 mm, often 560 mm, but also deeper, such as 590 or 610 mm. Usually can not be laterally from both sides of an open passage in the base area 12 be assumed because often near-wall positions of the kitchenette are used. The niche height is device-dependent and above and / or below the actual installation niche 26 can still fan 28 are located.

The 6 to 8th show the arrangement of an evaporation device 44 in the kitchen furniture 10 , The evaporation device 44 has an outer evaporation tank 46 and an inner evaporation tank 48 on. The evaporation tanks 46 . 48 are via a fluid line 50 connected with each other. The inner evaporation tank 48 is inside a housing 52 a refrigeration device 54 arranged in the installation niche 26 of the kitchen furniture 10 is housed.

The refrigeration device 54 has a door 56 for closing an interior 51 of the housing 52 as well as a machine room 58 in which a compressor 60 as well as the inner evaporation tank 48 are housed. On a case back wall 62 indicates the refrigeration device 54 in addition a condenser 64 on.

6 . 7 and 8th show different possibilities, such as the refrigeration device 54 and the evaporation device 44 in the kitchen furniture 10 can be arranged.

In a first embodiment, shown in FIG 6 , the refrigerator is sitting 54 right on the bottom end 30 of the kitchen furniture 10 on. The outer evaporation tank 46 is in the pedestal area 12 of the kitchen furniture 10 arranged. Via the fluid line 50 becomes defrost water 66 from the inner evaporation tank 48 to the outer evaporation tank 46 dissipated. Because the inner evaporation tank 48 on the compressor 60 can be arranged, heat coming from the compressor 60 is discharged directly to the evaporation of in the inner evaporation tank 48 trapped defrost water 66 be used. To maximize this heat, there is a connection 68 for the fluid line 50 at the inner evaporation tank 48 at an upper edge 70 arranged at the same time as a fastening device 71 serves. This is how defrosting water becomes 66 first in the outer evaporation tank 46 transferred when a maximum level F _max in the inner evaporation tank 48 is reached and the heat released from the compressor 60 is no longer sufficient for the collected defrost water 66 to evaporate into the environment.

The outer evaporation tank 46 points next to the connection 68 a second fastening device 72 on, which ensures that a gradient in the fluid line 50 from the second attachment device 72 to the connection 68 is created, so that from the inner evaporation tank 48 discharged defrost water 66 not in the fluid line 50 but directly into the outer evaporation tank 46 is initiated. The connection 68 at the outer evaporation tank 46 is located immediately behind the socket board 18 so he when removing the socket board 18 is accessible. The fluid line 50 is additionally detachable with the connection 68 at the outer evaporation tank 46 connected so that they are easily removed from the outer evaporation tank 46 can be removed to the outer evaporation tank 46 for emptying out of the base area 12 to remove.

The arrows in 6 indicate the direction of the airflow. The air initially flows over the opening 24 in the socket board 18 in the pedestal area 12 and then overflows the surface of the the outer evaporation tank 46 defrosting water 66 , This defrost water evaporates 66 and is transported by the airflow. The air now flows along the engine room 58 where they get warm moist air from the engine room 58 entrain and then over the condenser 64 , where they are the liquefier 64 cools.

In 7 a second embodiment is shown as the refrigeration device 54 and the evaporation device 44 in the kitchen furniture 10 can be arranged. Here is the outer evaporation tank 46 in the intermediate area 36 between the lower degree 30 of the kitchen furniture 10 and the intermediate floor 38 between the installation niche 26 and the lower degree 30 , In the lower degree 30 is a ventilation opening 74 let in, leaving air in the intermediate area 36 can flow in. The arrangement of the refrigeration device 54 relative to the outer evaporation tank 46 is significantly narrower than in the embodiment according to 6 , Therefore, it is advantageous if the fluid line 50 a flexible fluid line 76 is and thus can be heavily curved. In the case shown, the fluid line 50 a hose 78 , The air flow is, as indicated by the arrows, through the ventilation opening 74 in the intermediate area 36 , over the outer evaporation tank 46 , along the engine room 58 and about the liquefier 64 directed.

8th shows a third embodiment, such as the refrigeration device 54 and the evaporation device 44 in the kitchen furniture 10 can be accommodated. Here is the refrigerator 54 in elevated position above a base cabinet 80 , So over the fluid line 50 continue the excess defrost water 66 from the inner evaporation tank 48 to the outer evaporation tank 46 must be routed, the fluid line 50 be longer in the embodiment shown as in the embodiments according to 6 and 7 , So that all three embodiments can be realized, it is therefore advantageous if the fluid line 50 from the beginning has a total length of about 1.9 m to 2.1 m, but can be shortened to shorter overall lengths. This can for example be ensured by the fact that the fluid line 50 is simply cut to length, ie it is simply cut to the desired length. Therefore, if possible, it has a continuous cross section, so that the newly created by the cutting ends simply to the terminals 68 can be connected. Alternatively, it can also be modularly constructed from identical sections.

Will that be in 6 to 8th shown refrigeration device 10 now in the respective installation niche 26 built-in, is the outer evaporation tank 46 initially not with the inner evaporation tank 48 in fluid communication. First, the fluid line 50 namely only on the inner evaporation tank 48 attached, and then the refrigerator 54 in the installation niche 26 brought in. The fluid line 50 then gets over the gap 34 to the pedestal area 12 guided. Depending on the embodiment, the length of the fluid line is now 50 adapted to the local situation and then to the terminal 68 the outer evaporation tank 46 connected. Finally, the fluid line 50 still on the second fastening device 72 attached to a gradient in the fluid line 50 to accomplish. The outer evaporation tank will be in the base area 12 or in the intermediate area 36 positioned and then the socket board 18 attached.

The operation of refrigeration appliances 54 accumulating defrost water 66 is common in an evaporation tank 48 Usually caught in an area of the aggregate (engine room 58 ), often above the compressor 60 , is arranged. The defrost water caught in it 66 evaporates, favored by the heat of the compressor 60 ,

With the permanent increase in the efficiency of refrigeration appliances 54 increasingly poses the problem that no longer sufficient heat from the compressor 60 is discharged to the defrost water 66 reliably evaporate. Is tried in parallel, the properties of the refrigerators 54 to adapt to warm and humid climatic conditions, which ultimately leads to a larger Abtauwassermenge, raises the question of improved technical solutions.

At the same time, in particular with built-in refrigerators, the available space for enlarging the evaporation tank 48 limited.

• – Kältegeräte 54 mit Verdunstungsbehältern 48, die oberhalb des Verdichters 60 angeordnet sind.
• – Kältegeräte 54 mit Verdunstungsbehältern 48, die nicht oberhalb des Verdichters 60 angeordnet sind, aber in denen oder an denen gegebenenfalls andere wärmeerzeugende Komponenten, z.B. Kompaktverflüssiger, angeordnet sind.
• – Kältegeräte 54, durch deren Verdunstungsbehälter 48 ein druckseitiges Kältemittelrohr führt, das Verflüssigerrohr.
• – Kältegeräte 54 mit kaskadenartigen Wasserableitsystemen zur Vergrößerung der Oberfläche für die Verdunstung des Abtauwassers 66.
• – Kältegeräte 54 mit definierten Anforderungen an Be- und Entlüftungsquerschnitte zur Kühlung des Aggregats (Verdichter 60, Verflüssiger 64, andere Komponenten), denn neben der von dem Abtauwasser 66 aufgenommenen Wärme beeinflusst die verfügbare Oberfläche die Verdunstungsleistung maßgeblich. Weiter beeinflusst auch eine Luftbewegung die Verdunstungsleistung positiv.
• – Kältegeräte 54, deren Aggregatbelüftung durch natürliche Konvektion erreicht wird.
• – Kältegeräte 54, deren Aggregatsbelüftung ganz oder teilweise durch einen Ventilator erfolgt.

Investigations show that even the following improvement measures do not lead to the required evaporation performance:

• - Refrigeration appliances 54 with evaporation tanks 48 that is above the compressor 60 are arranged.
• - Refrigeration appliances 54 with evaporation tanks 48 that are not above the compressor 60 are arranged, but in which or to which optionally other heat-generating components, such as compact liquefier, are arranged.
• - Refrigeration appliances 54 , through their evaporation tanks 48 a pressure-side refrigerant pipe leads, the condenser tube.
• - Refrigeration appliances 54 with cascading water drainage systems to increase the surface for the evaporation of defrost water 66 ,
• - Refrigeration appliances 54 with defined requirements for ventilation and cross-sections for cooling the unit (compressor 60 , Liquefier 64 , other components), because in addition to that of the defrost water 66 absorbed heat significantly influences the available surface evaporation performance. Furthermore, an air movement also positively influences the evaporation performance.
• - Refrigeration appliances 54 whose aggregate ventilation is achieved by natural convection.
• - Refrigeration appliances 54 whose aggregate ventilation is wholly or partly by means of a fan.

The aim is to find another measure to improve the evaporation performance of built-in refrigeration appliances. If appropriate, the measure should be able to be combined with the other above-mentioned measures, if necessary with the least possible effort and only be introduced with defined device variants, and can also be retrofitted if necessary. Furthermore, the measure should be cost-effective and have a low quality risk, generate no additional energy intake, be non-approbationrelevant and work in all significant cases.

The simplest and cheapest way to increase the evaporation performance is the size of the evaporation tank 48 to maximize by this is carried out as large as possible within the available space. Alternatively, in order to increase the evaporation performance in the embodiments described above, a second outer evaporation tank will be used 46 placed in a different location so that it is possible to defrost water 66 from a certain maximum level F _{max of} the first, inner evaporation tank 48 in this second, outer evaporation tank 46 be reconciled.

For built-in appliances, the available space is for the design of the entire refrigeration appliance 54 through the installation niche 26 predetermined and limited. To a larger evaporation tank 48 in the engine room 58 To be able to place this would have to be made larger, which would always have to be done at the expense of the useful volume of the device. The same applies to the application of a second evaporation container below the device housing 52 , In contrast to solo stand devices, the design of built-in appliances is designed to minimize the space between the underside of the appliance body and the top of the built-in kitchen floor in order to keep the appliance body and thus the useful volume as large as possible. For built-in appliances, this is possible because the ventilation of the unit, ie the compressor 60 or the condenser 64 , takes place over the kitchen furniture base and no ventilation gap is necessary directly below the device body.

The present embodiments now take the opportunity, a second outer evaporation tank 46 in the base area 12 of the kitchen furniture 10 to place and make a suitable connection between the primary, inner evaporation tank 48 in the engine room 58 of the device, eg above the compressor 60 , and this secondary, outer evaporation tank 46 to accomplish.

The room in the base area 12 the installation niche 26 offers all the necessary conditions to an external evaporation tank 46 to apply in a suitable form. Because the area is basically ventilated, as this is anyway a requirement of the refrigerator 54 is. Through this ventilation, both natural convection and forced ventilation systems, the evaporation is favored.

Furthermore, the area offers considerable space, so that an outer evaporation tank 46 can be applied with a large surface. Preferably, the size of the evaporation container is selected to be compatible with the known kitchen furniture designs. Based on the known distances of the furniture base feet 22 different manufacturers this results in a meaningful maximum size of about 350 mm wide × 400 mm depth. Larger outer evaporation tank 46 may not be installed in any case, as this would otherwise collide with the known furniture feet 22 and / or the socket board 18 result. Smaller outer evaporation tanks 46 on the other hand, there are restrictions on the maximum evaporation capacity.

The evaporation container height could, with a pure design, be applied to the application in the classic base area 12 about 50 mm high. However, there are installation cases with so-called indirect ventilation, in which the air supply between the niche floor and a retracted intermediate floor 38 he follows. This ventilation gap is often reduced to a minimum by the kitchen furniture manufacturers, so that only the minimum ventilation required for the built-in appliance is guaranteed. Often the clear height of this gap are smaller 35 mm.

So that even in such a case, the outer evaporation tank 46 can be installed at this point and the ventilation cross-section is not completely closed, is a height of the outer evaporation tank 46 less than 20 mm to provide. This results in meaningful maximum height dimensions of the second, outer evaporation tank 46 of 20 mm height × 350 mm width × 400 mm depth.

Because of the many different installation cases, the relative position of the refrigerator 54 to the plinth 12 of the kitchen furniture 10 is not known, preferably a flexible connection line to the outer evaporation tank 46 provided. In a particularly preferred embodiment, a hose 78 suitable, the connection between the two evaporation tanks 46 . 48 manufacture. The hose 78 is preferably designed such that a wide variety of connection lengths, depending on the individual installation situation, can be generated. This can be done by, for example, the connection geometries to at least one of the two evaporation tanks 46 . 48 designed so that a hose 78 can be shortened with a constant cross section simply by cutting to length, such as cutting, sawing or breaking, and the tube end thus produced again fits the evaporation container connection geometry.

Another option is to use the hose 78 to build up from individual identical sections, which together give the necessary total length.

The connection 68 at the second, outer evaporation tank 46 is preferably at the front of the outer evaporation tank 46 so that the user is easily able to create the outer evaporation tank 46 in the installed condition of the hose 78 to solve, eg for cleaning purposes or for disassembly of the entire device. By dismantling the pedestal board 18 this is easily possible at any time. If the connection geometry, however, arranged at the rear, the hose 78 difficult to reach.

The total length of the hose 78 should preferably be independent of the design of the hose 78 ie if it is a hose that can be cut to length 78 or a hose which can be joined together from partial segments 78 is the height difference between the two evaporation tanks 46 . 48 overcome. Based on the most extreme installation cases, this is a height difference of approx. 1.50 m and a connection length of 400 mm to the outer evaporation tank 46 , Accordingly, it is advantageous to have a hose 78 in a length of about 1.9 m to 2.1 m.

When designing the connection geometry on the outer evaporation tank 46 is a second, higher mounting point on the outer evaporation tank 46 advantageous to provide a drainage slope.

• 1. Alle sonst üblichen vorbereitenden Einbautätigkeiten laufen unverändert ab.
• 2. Vor dem Einschieben des Kältegerätes 54 in die Einbaunische 26 wird der ungekürzte Schlauch 78 am Überlaufstutzen, d.h. dem Anschluss 68, an dem ersten, inneren Verdunstungsbehälter 48 befestigt und das andere Ende des Schlauches 78 wird in den Spalt 34 zwischen Einbaunische 26 und Raumwand 14 gebracht, so dass der Schlauch 78 im Sockelbereich 12 erreichbar ist.
• 3. Das Kältegerät 54 wird vollständig mit allen unverändert auszuführenden Tätigkeiten eingebaut.
• 4. Der zweite, äußere Verdunstungsbehälter 46 wird im Sockelbereich 12 appliziert und der Schlauch 78 an den Anschlüssen 68 befestigt.
• 5. Eine Überlänge des Schlauches 78 wird gekürzt.

The procedure of device installation is described below:

• 1. All otherwise usual preparatory installation work continues unchanged.
• 2. Before inserting the refrigeration unit 54 in the installation niche 26 becomes the unabridged hose 78 at the overflow connection, ie the connection 68 , at the first, inner evaporation tank 48 attached and the other end of the hose 78 gets into the gap 34 between installation niches 26 and room wall 14 brought, so the hose 78 in the base area 12 is reachable.
• 3. The refrigeration device 54 is completely installed with all activities to be carried out unchanged.
• 4. The second, outer evaporation tank 46 will be in the pedestal area 12 applied and the hose 78 at the connections 68 attached.
• 5. An excess length of the hose 78 will be shortened.

Before dismantling the refrigerator 54 will the hose 78 preferably from the second, outer evaporation tank 46 solved.

The use of an additional, external evaporation tank 46 is significantly less expensive than other known solutions to increase the evaporation performance and can be applied by this invention in built-in appliances that offer no space in the device area for this purpose.

The evaporation performance can be achieved with the help of a second, external evaporation tank 46 be significantly increased, without this space in the device area and thus in the useful volume is negatively affected.

The otherwise unused space of the furniture base is used to increase the evaporation capacity.

The through the pedestal area 12 ventilation takes place for optimal evaporation. Evaporation in the base area 12 works with both static convection ventilation and forced air systems. The solution is adaptively possible, ie a device can be improved by merely adding the components to the kit with regard to the evaporation performance.

The solution can be used as a customer service solution. The solution works by the sufficiently long provided and adjustable in length connection hose line in all imaginable installation cases.

Thus, an increase in the evaporation performance of the built-in refrigerator by a downstream outer evaporation tank 46 can be achieved, which is not in the installation area of the refrigerator 54 located, ie the evaporation tank 46 is not in the engine room 58 and not directly below the device body. He is rather in the pedestal area 12 of the kitchen furniture 10 , Alternatively, he can also be in the base area 12 a neighboring piece of furniture of the installation niche 26 are located. Next alternatively it can not be in the kitchen socket 12 but in an intermediate area 36 above the base area 12 but below the installation niche 26 located, for example, in a furniture compartment or a separate base cabinet or a ventilation gap.

Preferably, the envelope dimensions of the outer evaporation container 46 in any dimension substantially greater than 25 mm height × 400 mm width × 400 mm depth and preferably also not significantly smaller than 25 mm height × 400 mm width × 400 mm depth. It is advantageous if a flexible in length and / or customizable dew-water-conducting connecting element, for example a drain hose or a connecting hose, between the two evaporation tanks 46 . 48 is arranged. The hose 78 is shortened in one embodiment in length and then advantageously has a constant cross-section, so that the shortened tube 78 an unchanged connection cross-section of at least one of the evaporation tank 46 . 48 Has. The hose 78 may alternatively have several identical sections, which are strung together in any number and thus always consistent connection cross-sections of the evaporation tank 46 . 48 provide. Preferably, the entire tube 78 in its unabridged initial length about 1.9 m to 2.1 m long. The connection 68 at the inner evaporation tank 48 is designed in the embodiment shown so that only when exceeding a defined maximum level F _max an overflow into the outer evaporation tank 46 happens. As in the 6 to 8th shown has the outer evaporation tank 46 a second fastening device 72 for the hose 78 on, so that a drainage drop can be provided at the end of the hose. The hose 78 is in the illustrated embodiments from the front through the base area 12 accessible area of the outer evaporation tank 46 attached. The hose 78 is also detachable with the two evaporation tanks 46 . 48 connected. Alternatively, instead of a hose 78 Also, a plastic molding, for example, an extrusion, injection molding or blown part can be used.

LIST OF REFERENCE NUMBERS

10

kitchen furniture

12

plinth

14

room wall

16

furniture front

18

socket board

20

ground

22

foot

24

opening

26

niche

28

subject

30

lower degree

32

Niche rear wall

34

gap

36

intermediate area

38

false floor

40

Side wall

43

ventilation grille

42

free space

44

vaporizer

46

outer evaporation tank

48

inner evaporation tank

50

fluid line

51

inner space

52

casing

54

The refrigerator

56

door

58

engine room

60

compressor

62

Rear panel

64

condenser

66

defrost water

68

connection

70

upper edge

71

fastening device

72

second fastening device

74

ventilation opening

76

flexible fluid line

78

tube

80

cabinet

A

base height

B

base depth

C

niche depth

F _max

maximum level

T

depth direction

Claims (15)

Evaporation device ( 44 ) to evaporate in a built-in refrigerator ( 54 ), in particular a domestic refrigerator, accumulating defrost water ( 66 ), comprising an outer evaporation tank ( 46 ) and a fluid line ( 50 ) for conducting defrost water ( 66 ) from a housing ( 52 ) of the built-in refrigerator ( 54 ) in the outer evaporation tank ( 46 ), wherein the outer evaporation tank ( 46 ) and the fluid line ( 50 ) for placing outside the built-in refrigerator ( 54 ) are formed. Evaporation device ( 44 ) according to claim 1, characterized in that the evaporation device ( 44 ) an inner evaporation container ( 48 ), which can be arranged inside the housing ( 52 ), wherein the outer evaporation tank ( 46 ) and the inner evaporation tank ( 48 ) by means of the fluid line ( 50 ) are in fluid communication. Evaporation device ( 44 ) according to claim 2, characterized in that the inner evaporation tank ( 48 ) for receiving defrost water ( 66 ) from an interior ( 51 ) of the built-in refrigerator ( 54 ) is trained. Evaporation device ( 44 ) according to one of claims 2 or 3, characterized in that the inner evaporation container ( 48 ) above a maximum fill level (F _max ) a connection ( 68 ) for connecting the fluid line ( 50 ) and / or that the fluid line ( 50 ) detachable with the connector ( 68 ) of the inner evaporation tank ( 48 ) and / or with a fastening device ( 71 ) trained connection ( 68 ) on the outer evaporation tank ( 46 ) connected is. Evaporation device ( 44 ) according to claim 4, characterized in that on the outer evaporation container ( 46 ) a second fastening device ( 72 ) for the fluid line ( 50 ) is provided, which above the fastening device ( 71 ) trained connection ( 68 ) for connecting the fluid line ( 50 ) is arranged. Evaporation device ( 44 ) according to one of the preceding claims, characterized in that the outer evaporation tank ( 46 ) has a length of 300-500 mm, a width of 300-400 mm and a height of 10-100 mm. Evaporation device ( 44 ) according to one of the preceding claims, characterized in that the fluid line ( 50 ) a flexible fluid line ( 76 ) and / or a hose ( 78 ) and / or a plastic molding. Evaporation device ( 44 ) according to any one of the preceding claims, characterized in that the total length of the fluid line ( 50 ) is between 1.8 m and 2.2 m, in particular between 1.9 m and 2.1 m, and / or that the fluid line ( 50 ) is variable in length. Evaporation device ( 44 ) according to one of the preceding claims, characterized in that the fluid line ( 50 ) is cut to length and / or that the fluid line ( 50 ) is composed of several identical sections. Evaporation device ( 44 ) according to one of the preceding claims, characterized in that the fluid line ( 50 ) has a consistently consistent over their entire length cross-section. Built-in refrigerator ( 54 ), in particular domestic refrigeration appliance, with a housing ( 52 ) and with an evaporation device ( 44 ) according to any one of the preceding claims. Built-in refrigerator ( 54 ) according to claim 11 and any one of claims 2 to 10, as far as dependent on claim 2, characterized in that the housing ( 52 ) for installation in a recess ( 26 ) in a piece of furniture, in particular in a kitchen furniture ( 10 ), and / or that the outer evaporation tank ( 46 ) for placing outside the installation niche ( 26 ) and an inner evaporation tank ( 48 ) for placement within the installation niche ( 26 ) and / or that the outer evaporation tank ( 46 ) for placing in a pedestal area ( 12 ) below the kitchen furniture ( 10 ) is trained. Built-in refrigerator ( 54 ) according to claim 12, characterized in that the outer evaporation tank ( 46 ) for placing in an intermediate area ( 36 ) between installation niches ( 26 ) and socket area ( 12 ) and / or for placing in a base area ( 12 ) below a second kitchen cabinet ( 10 ) is trained. Built-in refrigerator ( 54 ) according to one of claims 11 to 13 and one of claims 6 to 10, as far as referred back to claim 6, characterized in that the housing ( 52 ) a door ( 56 ), the connection ( 68 ) for connecting the fluid line ( 50 ) on the outer evaporation tank ( 46 ) to the door ( 56 ) is directed towards. Method for installing a built-in refrigeration appliance ( 54 ), in particular a household refrigeration appliance, in a niche ( 26 ) of a piece of furniture, in particular a kitchen appliance ( 10 ), comprising the steps of: a) providing a built-in refrigeration appliance ( 54 ) according to one of claims 11 to 14 with an outer and an inner evaporation container ( 46 . 48 ); b) providing a piece of furniture, in particular a kitchen appliance ( 10 ), with an installation niche ( 26 ) and a pedestal area ( 12 ); c) connecting the fluid line ( 50 ) to the connection ( 68 ) of the inner evaporation tank ( 48 ); d) Installation of the built-in refrigeration appliance ( 56 ) in the installation niche ( 26 ), wherein the fluid line ( 50 ) along a gap ( 34 ) between an in-wall rear wall ( 32 ) and a room wall ( 14 ) to the pedestal area ( 12 ) to be led; e) adjusting the length of the fluid line ( 50 ); f) positioning the outer evaporation tank ( 46 ) in the base area ( 12 ) and connecting the fluid line ( 50 ) at the connection ( 68 ) of the outer evaporation tank ( 46 ).

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