DE102012207686A1 - Domestic refrigerating appliance has coolable inner space for storing refrigerant, refrigerant reservoir with storage material, and refrigeration circuit for cooling storage material of refrigerant reservoir - Google Patents

Abstract

The domestic refrigerating appliance (1) has a coolable inner space (3a) for storing refrigerant, a refrigerant reservoir (5a) with a storage material, and a refrigeration circuit for cooling the storage material of the refrigerant reservoir. The refrigerant reservoir is arranged for cooling the inner space. Another coolable inner space (3b) is formed for storing refrigerant. Another refrigerant reservoir (5b) is arranged with the storage material for cooling the latter inner space.

Description

The invention relates to a domestic refrigerator with a first coolable interior for storing refrigerated goods, with at least a first cold storage with a storage material. The domestic refrigerator has a refrigeration cycle for cooling the storage material of the first cold storage.

It is an object of the present invention to make a household refrigeration appliance with respect to the storage of refrigerated goods more flexible and in this respect to provide a more flexible operation and a more flexible use of household refrigeration appliance.

From the DE 10 2010 041 951 A1 a refrigeration device is known as household refrigeration appliance according to the preamble of claim 1. The household refrigerator includes a first refrigeration circuit which is a primary circuit, the primary circuit having an evaporator, a compressor and a condenser. The evaporator is arranged in a container in which a storage material in the form of a PCM (Phase Change Material) is arranged. The household refrigerating appliance moreover comprises a second refrigeration circuit designed as a secondary circuit, which has two heat exchangers, wherein a heat exchanger is arranged inside the container with the storage material and a second heat exchanger is arranged in the coolable interior. In addition, a pump is included in the secondary circuit. The container with the storage material is decoupled from the interior by an insulating wall. In further embodiments, moreover, it can be provided that an additional evaporator is arranged in the interior, which is thermally coupled to the heat exchanger of the secondary circuit, which is located in the interior. This additional evaporator is also connected to the primary circuit. In a further embodiment, it is provided that the heat exchanger located outside of the container with the storage material is located in the interior of the household refrigerating appliance and communicates via lines with the pumpable storage material, in which case the pumpable storage material is a pasty mixture of frozen and non-frozen components is executed and can also be referred to as "slurry". This storage material is pumped via the pipes through the heat exchanger via a circulating pump.

In addition, from the DE 10 2010 041 952 A1 a refrigerator known as household refrigeration appliance. In this embodiment, it is provided that in the region of a rear wall of the inner container of the household refrigerating appliance, however, an evaporator of a refrigeration cycle separate from the coolable inner space by a heat-insulating wall is arranged. The evaporator is thermally coupled to a cold storage, which has a storage material. The cold storage is disposed within an air channel formed between the wall portion of the insulating container and the heat-insulating wall, which air channel is coupled to the interior, with corresponding flaps being provided.

By known from the prior art domestic refrigerators, it is possible to operate them both in a network operation as well as in a decoupled from the grid operation. Even if there is no direct electrical power supply from the mains, such a household refrigerator is also fully operational operable.

Another advantage of household refrigerators, which have two separate refrigeration circuits, which are thermally coupled together, is the fact that the interior of the household refrigerator is cooled by a heat exchanger and the storage material. Even if the first refrigeration cycle is not in operation because, for example, no electrical energy from an electrical energy supply network for the refrigeration device is available, the above-mentioned network-independent operation is possible.

This object is achieved by a household refrigerator according to the independent claim.

An inventive household refrigerator comprises a first coolable interior for storing refrigerated goods. The domestic refrigerator comprises at least a first cold storage with a storage material for thermal energy storage, in particular cold. In addition, the household refrigerator comprises a refrigeration cycle for cooling this storage material of the first cold storage. An essential idea of the invention is that at least one first cold storage is arranged for cooling the first interior, and a second coolable interior is configured for storing refrigerated goods, and at least a second cold storage is arranged with a storage material for cooling the second interior. Such a configuration of a household refrigerating appliance makes it possible to store individually refrigerated goods in different coolable internal spaces. In addition, it is also ensured that this plurality of separate interiors can be cooled as needed by their own cold storage, with a more flexible use of household refrigerators is made possible by the cold storage with the storage material, as well as a cooling effect can then be achieved when the household refrigerator no external electrical Has energy supply and thus the refrigeration device itself must apply the cooling effect. This is then done via the cold storage. This allows a more flexible use and a certain independence from an external electrical power supply. In particular, an energy-efficient operation with respect to the cooling of the individual interiors is achieved by the cold storage.

Preferably, it is provided that the first interior is a freezer compartment and the second interior is a refrigerated compartment or fresh food compartment. Especially this specification of the interiors, which can then be supplied by a cold storage with thermal energy, is particularly advantageous.

It is preferably provided that the at least one first and at least one second cold storage are separate or separated cold storage, each with separate storage materials. In such an embodiment, the individual arrangement in the individual interiors can be made as needed, so that no unnecessary space is limited and the accessibility to the interiors is not hindered.

It can be provided that the two separate cold storage are thermally decoupled.

In particular, it is provided that a first storage material of the first cold accumulator has a first phase transition temperature, and a second storage material of the second cold accumulator has a different phase transition temperature to the first storage material, in particular a higher phase transition temperature. This takes into account the fact that the different target temperatures of the acted upon interiors, which is provided due to the respectively provided functionality of the interiors, can be set extremely needs-based.

The memory material, which is designed for thermal energy storage, is in particular a PCM material.

By such embodiments of the storage materials, the functionality of the cold storage can be achieved particularly advantageous. It is a particularly extensive and efficient thermal energy storage and then depending on the situation needs-based delivery to the interiors and in particular in the network-independent operation of the household refrigerator over a relatively large period of time, which may be> 20 hours, achieved. In particular, a network-independent operation of the household refrigeration appliance is thus possible without limiting the functionality of the household refrigeration appliance in a very long period of time and each of the majority of subjects or interiors can be easily applied with the required cooling capacity.

It is preferably provided that the first cold storage is arranged in the interior of the first interior or in a wall bounding the first interior and is arranged in cross-section L-shaped and in particular lying. Such a specific shaping virtually enables a thermal energy output from a plurality of different sides, so that a particularly uniform introduction of energy into an interior space is made possible. In addition, a very compact design with nevertheless the largest possible surface can be achieved by this shape of the cold storage.

This shape of the first cold storage is particularly advantageous if the first interior of the viewed in the vertical direction of the household refrigerator topmost interior, and in particular is a freezer compartment. Since just as much cooling energy must be introduced into the interior of a freezer, is taken by this specific shape of the cold storage the bill, since in this respect the largest possible surface of the cold storage is used.

It is preferably provided that the first cold storage considered in cross-section of the household refrigerating appliance extends over the entire height of a rear wall of the first interior space on or in the rear wall. In particular, it is additionally or instead also provided that the first cold storage, viewed in cross-section of the household refrigerating appliance, extends at least in places over the depth of a ceiling wall of the first interior on or in the ceiling wall. The above advantages are then optimized.

It is preferably provided that the at least one second cold storage is arranged outside the first interior and in an air duct, wherein the air duct between a boundary wall, in particular a rear wall, an inner container of the household refrigerator and a the air duct separating the second inner space insulating wall is arranged the insulating wall has an inlet and an outlet, through which an air flow between the air duct and the second interior can be generated. Such an embodiment is advantageous in that, especially in the case of a second internal space designed as a refrigerated compartment or a fresh-food compartment, too much cooling may not be required, with the second external storage arrangement of the second cold-storage tank taking this into account. About the air duct, too optionally separated by flaps of the second inner space, then a corresponding cooling effect of the second interior can be generated by a fan air circulation from the second interior into the air duct and past the second cold storage is generated, whereby this air cools down and is then introduced from the air duct back into the second interior.

It is preferably provided that the second cold storage extends over at least three quarters of the height of the boundary wall and is arranged on this or integrated therein. For such a configuration of a long or high second cold reservoir, a relatively long path of the flowing through the air duct gaseous medium, in particular the air, is reached, so that relatively much can be cooled in this respect.

It is preferably provided that the storage material of the second cold storage can be cooled by the refrigeration cycle, in particular freezable. As a result, a particularly large amount of cooling energy is stored in the cold storage, which can then be discharged again, in particular, for example, in a network-independent operation of the household refrigerator, and thus the longest possible off-grid operation is possible until complete thawing of the cold storage.

It is preferably provided that the first and the second cold storage are formed by a single cold storage with a storage material, said one-piece cold storage extends through a formed between the first and the second interior and the two interiors thermally insulating partition wall over both interior spaces. By such a configuration, a component reduction can be achieved and a plurality of interiors can be cooled as needed by a cold storage virtually multi-functional. This combined cold storage then extends only through the opening in the partition, so that in addition to this compound in particular a thermal insulation of the two interiors is given over the partition.

In a further preferred embodiment, it is provided that a first cold storage forms a bottom of the first interior and a second cold storage forms the ceiling of the arranged below the first interior second interior and between the two cold stores a partition wall is arranged. By such an arrangement of two separate cold storage, the attachment of other components can be made space-saving and component-saving.

It is particularly advantageous that this partition between the two cold storage thermally insulating, but not heat-insulating is formed. This means that it is defined in terms of their material design and / or their thickness defined so that over them, a heat transfer is not completely prevented, but that such a heat transfer is possible in a targeted manner. Preferably, heat can pass from the lower second cold storage to the upper first cold storage or be transferred by such a heat-insulating partition wall. In particular, the heat-insulating partition is formed in such a thickness that not too much heat flows from the lower second cold storage to the upper first cold storage, otherwise the lower second cold storage would cool down too much, which in turn leads to an optionally undesirably low temperature within a cooling compartment or would run as a fresh food compartment formed second interior.

It is preferably provided that an evaporator for cooling the storage materials of the cold storage is provided, which is thermally coupled with two cold stores, in particular is arranged on the storage materials and extends through openings in the cold storage and the partition in both cold stores.

It is preferably provided that in the case of a memory material embodied as a PCM, the phase change point of this storage material is just below a desired temperature in the first interior space designed as a freezer compartment during the storage operation of the household refrigerating appliance.

In particular, the phase change point of the memory material of the second cold accumulator designed as a PCM is minimally below the desired temperature of the second inner space designed as a refrigeration compartment, this phase change point of the second storage material being significantly higher than the phase change point of the first storage material.

In the advantageous embodiment of an evaporator of the refrigeration cycle, a first part of this evaporator preferably runs within the first storage material. Preferably, here too, the injection point or the inlet of the evaporator for the refrigerant or fluid circulating in the refrigeration circuit. This can be, for example, a brine.

A second part of this evaporator, which is warmer during operation of the household refrigerating appliance than the first part, runs through the storage material of the second cold storage. By such a structure, only the first cold storage by the Refrigerant cooled in the refrigeration cycle. After flowing through the first part of the evaporator in the first cold storage, the refrigerant of the refrigeration cycle flows through the second part of the evaporator in the second refrigeration cycle and cools this second cold storage.

In addition, a fan or a fan in the second interior space is provided. Preferably, this fan is arranged in the upper region of the second interior space, in particular on a side facing away from the first cold storage and the second interior facing side of the second cold storage. As a result, the air can be circulated in the second internal space, whereby it sweeps more intensively over the cold surface of the cold storage and thus can be cooled more. As a result, an active control of the temperature in the second interior is given.

Also in the embodiments with two separate cold storage is preferably provided that an evaporator, which is connected in the refrigeration cycle, is arranged and is thermally coupled to the cold storage. In this context, it may be provided that the evaporator is a single evaporator, which is arranged extending over both cold storage, in particular adjacent to these.

It can be provided in a separated embodiment and arrangement of the at least one first cold storage and the at least one second cold storage that two separate evaporators are provided, wherein a first evaporator is thermally coupled to the first cold storage and a second evaporator thermally coupled to the second cold storage is. It is preferably provided that the evaporators are each arranged directly adjacent to the cold storage.

It is advantageous if the evaporator, viewed in cross-section, is arranged over at least half, preferably at least three quarters, in particular over the entire exposed surface of a cold accumulator or is in contact with this surface over the entire surface. This can be provided both in the first cold storage and in the second cold storage.

It is preferably provided that the refrigeration cycle has at least one evaporator, which is thermally coupled to this or these for cooling the storage material or the storage materials. In particular, it is provided that the evaporator on the cold storage or the cold storage outside is arranged directly or is arranged in the cold storage or the cold storage in the respective storage material and thus contacted directly with the storage material.

It is preferably provided that the refrigeration cycle can be coupled to an external energy supply network for the electrical energy supply of the household refrigerating appliance and can be frozen in the coupled state of the cold storage or the cold storage by the activated refrigeration circuit, in particular an activated evaporator of the refrigeration cycle. Additionally or instead, it can be provided that the refrigeration cycle with an external power supply network for electrical power supply is coupled and in the decoupled state and thus in the network independent operation of household refrigeration, the cooling of at least the first interior by the stored in the particular frozen storage material of the first cold storage cold takes place, this being done in particular when the refrigeration cycle is deactivated.

As PCM material or storage material or mixtures of substances are used, which have a melting point or phase change point just below the desired temperature or target temperature of an interior.

About the evaporator or can be frozen in the grid-coupled operation of the household refrigeration appliance, which can also be referred to in particular as a storage refrigerator, the cold storage or cold storage and the temperature can be controlled in the respective interiors. In grid-independent operation, the temperature in the interiors can no longer be actively controlled, but it turns, for example, in the freezer a temperature just above the phase change point of the storage material of the first cold storage.

If the household refrigeration appliance is to be operated off-grid or with significantly reduced power consumption, the frozen storage material can absorb the heat from the interior without the refrigeration circuit having to be switched on, so that the latter can also remain deactivated in this regard. The relatively low power requirements of the fan and the control and / or regulating unit can either be obtained from the normal power grid and thus the power grid or be covered by a small battery of household refrigeration appliance itself, which then actually completely network-independent operation of the household refrigerator over a period of time , which can also be> 20 hours, given and there is no functional impairment with regard to the respective cooling of the individual interiors occurs.

Further features of the invention will become apparent from the claims, the figures and the description of the figures. The features and feature combinations mentioned above in the description and the following in the Description of figures mentioned and / or shown alone in the figures features and combinations of features can be used not only in the specified combination, but also in other combinations or alone, without departing from the scope of the invention. Thus, embodiments of the invention are to be regarded as encompassed and disclosed, which are not explicitly shown and explained in the figures, however, emerge and can be produced by separated combinations of features from the embodiments explained.

Embodiments of the invention are explained in more detail below with reference to schematic drawings. Show it:

1 a schematic sectional view through a first embodiment of a household refrigerator according to the invention;

2 a schematic sectional view through a further embodiment of a household refrigerator according to the invention; and

3 a sectional view through a third embodiment of a household refrigerator according to the invention.

In the schematic and with regard to functional principles sketchy figures the same or functionally identical elements are provided with the same reference numerals.

In 1 is a household refrigerator 1 shown in a sectional view. In the exemplary embodiment is the household refrigerator 1 designed as a storage refrigerator, which has an inner container 2 with a first coolable interior 3a , which is a freezer compartment, and at least a second coolable interior 3b which is a refrigerated compartment having. In both interiors 3a and 3b Refrigerated goods, as they were called, can be stored and cooled or frozen.

On the inner container 2 is a door 4 hinged hinged, so that the interiors 3a and 3b are accessible. Depending on the design, it is provided that a temperature between 4 ° C and 10 ° C is set in the cold room as the set temperature, and in the freezer compartment a setpoint temperature below the freezing point and thus below 0 ° C is adjustable.

In the present embodiment it can be seen that the first interior 3a in the vertical direction (y-direction) above the second interior 3b is designed and arranged.

A first cold storage 5a is in the embodiment in the first interior 3a arranged. The cold storage 5a is a container. The cold storage 5a has a filling with a storage material 7a on which is a PCM material. For example, a brine solution can be provided here.

In addition, it can be seen that the household refrigerator 1 one of the first cold storage 5a separated second cold storage 5b which is also designed as a container into which a second storage material 7b is included. The storage material 7b is also a PCM material, but in particular has a phase change point that is different from the phase change point of the memory material 7a is. For example, the phase change point of the memory material 7b a temperature <4 ° C in view of the above-mentioned target temperature of the second interior 3b ,

As from the illustration in 1 it can be seen, is the first interior 3a from the second interior 3b through a horizontal, thermally insulating wall 6 separated.

As from the illustration in 1 can be seen, a refrigeration circuit is formed, which may be a compressor refrigeration cycle. The refrigeration cycle has a condenser 8th , a compressor 10 and in the embodiment, two separate evaporator 9a . 9b on. There is also a 2-way valve 20 switched into the refrigeration cycle. The refrigeration cycle is designed in particular as a cold steam compression circuit and is supplied by means of an electric power supply network, not shown, with electrical energy when the household refrigerator 1 is operated in network operation and is thus coupled to the power grid.

The first evaporator 9a is heat-conducting with the cold storage 5a connected, the first evaporator 9a directly adjacent to the cold storage 5a is trained.

The refrigeration cycle is in particular with a control and / or regulating unit 18 of the household refrigerator 1 connected and can be switched on and off via this, in the network operation, the storage materials 7a and 7b active and defined to cool, in particular freeze.

As from the illustration in 1 it can be seen, is the first cold storage 5a formed in cross section as a folded L-shape. It extends in this context with a vertical section in the embodiment over the entire height (y-direction) of a rear wall 11b that the first interior 3a limited on the back. In addition, the first cold storage extends 5a in the horizontal direction partly over the depth (x-direction) one ceiling wall 11a that the first interior 3a bounded from above.

In addition, it is provided in the embodiment that the evaporator 9a in cross-section is substantially full surface on the walls 11a and 11b remote surface of the cold storage 5a extends.

In addition, it can be seen that the second cold storage 5b essentially over the entire height or preferably over the entire height of a rear wall 12 extends us in particular is fittingly arranged. It can also be provided that the cold storage 5b in this back wall 12 embedded, in particular integrated therein. The same can also be said for the cold storage 5a in terms of positioning in the walls 11a and or 11b be provided.

The second cold storage 5b is outside the second interior 3b arranged. He is in an air duct 14 arranged. The air duct 14 on the one hand, through the back wall 12 and on the other hand by a wall spaced therefrom 13 or insulating wall limited, the wall 13 is preferably formed as a heat-insulating wall. For flow coupling with the interior 3b is provided at a lower end of the air duct 14 an air outlet opening or an outlet is formed by a flap 15 is closable. The opening and closing of the flap 15 can via the control and / or regulating unit 18 respectively. The position of the flap 15 may depend on temperatures in the interior 3b and or 3a respectively.

In addition, at an upper end of the air duct 14 an inlet 16 formed, in or adjacent to which also a fan 17 is arranged. This inlet is used during active operation of the fan 17 Air from the interior 3b sucked and in the air duct 14 flowed. There, the air then flows to the cold storage 5b and the evaporator 9b over and is thereby cooled. The then cooled air then passes over the open flap 15 and the outlet there again in the interior 3b ,

Also the second evaporator 9b is designed so that it is in cross section over the same dimensions as the cold storage 5b extends and in this respect in particular the entire surface on the back wall 12 opposite side of the cold storage 5b is arranged directly adjacent.

It can also be provided that the cold storage 5b spaced to the rear wall 12 in the air duct 14 is arranged.

The ventilator 17 is also with the control unit 18 electrically connected. The corresponding amount of air to be pumped through the fan 17 controlled.

In a network operation and thus in an electrical coupling of the household refrigerator 1 With the external power grid, the heat can be transferred directly to the evaporator 9 and thus transferred to the refrigerant of the refrigeration cycle. Will the household refrigerator 1 operated independently of the mains and thus operated electrically decoupled from the external power grid, a transfer of heat takes place on the cold storage 5a and 5b and thus on the storage materials 7a and 7b , causing them to warm and thaw. In particular, in network operation, the cold storage 5a and 5b and thus also the storage materials 7a and 7b cooled and preferably completely frozen. It can then in grid-independent operation a relatively long cooling operation of the interiors 3a and 3b be easily maintained until the storage materials 7a and 7b optionally completely thawed.

An embodiment according to 1 allows the cold storage 5a and 5b In addition, the temperature in the interior can be frozen independently 3a regardless of the temperature in the interior 3b adjustable.

In 2 is a sectional view of another embodiment of a household refrigerator according to the invention 1 shown. There is in contrast to the representation according to 1 provided that only a single cold storage 5c is provided, which is responsible both for thermal energy transfer to the first interior 3a as well as the thermal energy transfer to the second interior 3b orders or extends. It can be seen that at a rear portion of the inner container 2 a continuous opening in the wall 6 is formed, through which the vertical portion of the particular L-shaped cold accumulator 5c extends and thus this vertical section is in both the first interior 3a as well as in the second interior 3b extends. In addition, it is also provided here that a switched into the refrigeration cycle evaporator 9c is provided as the only evaporator, with the cold storage 5c is thermally coupled, in particular arranged directly adjacent thereto. With regard to the concerns about corresponding areas as well as the further design and functionality, reference is made to the explanations 1 directed. Incidentally, this also applies to the further function of the household refrigerating appliance 1 with regard to off-grid or grid-connected operation.

The cold storage 5c can be over the entire height of the wall 12 extend. However, he can also only about the height of the wall 12 be formed, for example, offset from the lower end back.

In the embodiment in 2 can also be provided that the one cold storage 5c is formed by two sections, which optionally abut directly against each other, wherein the first section in the first interior 3a and the second section in the second interior 3b is arranged. Even with such a configuration can then be provided that only a single evaporator 9c is present, which is then thermally contacted with two cold storage areas.

Another embodiment of a household refrigerator according to the invention 1 is in a sectional view in 3 shown. There, a configuration is realized in which the household refrigerator 1 two separate cold storage tanks 5a and 5b having. These extend horizontally in the embodiment. This forms the first cold storage 5a a floor of the first interior 3a , On the other hand, forms the second cold storage 5b a ceiling of the second interior 3b , Because the interiors 3a and 3b directly adjacent to each other and are positioned one above the other, the two cold storage 5a and 5b arranged relatively adjacent to each other. They are only through a partition 6 ' separated from each other. The partition 6 ' is not a heat-insulating wall, but a heat-insulating wall. It is thus a desired and defined heat transfer through this wall 6 ' possible. This can heat from the warmer cold storage 5b on the cold storage 5a be transmitted. With regard to the desired heat permeability, the wall can 6 ' be formed as required in terms of their material design and / or thickness.

By an execution according to 2 is a simpler and therefore less expensive construction realized to two interiors 3a and 3b with a cold storage 5c especially in a storage operation to cool.

As from the illustration in 3 can be seen extending the cold storage 5a and 5b essentially completely over the entire depth (x-direction) of the interiors 3a and 3b , Only in the front, the door 4 obvious area is not directly on the door 4 adjacent configuration of the cold storage 5a and 5b intended. There the wall stretches 6 ' in the vertical direction in particular over the height of the cold storage 5a and 5b so that the wall 6 ' by way of example T-shaped and in this respect is arranged lying rotated by 90 °.

An evaporator 9 is in the refrigeration cycle with the condenser 8th and the compressor 10 connected. It is just a single evaporator here 9 provided, the thermally with both the first cold storage 5a as well as with the second cold storage 5b is coupled. In the exemplary embodiment, it is provided that the evaporator 9 itself both within the storage material 7a as well as within the storage material 7b extends. In addition, it is provided that in a near-door area of the cold storage 5a and 5b openings 19 are formed and beyond an opening 19 in the wall 6 ' is formed, through which the evaporator 9 extends. These openings 19 However, they are sealed in such a way that a transfer and mixing of the storage materials 7a and 7b are prevented.

The evaporator 9 For example, it can be designed as a tube and designed to be wound or bent in multiple ways.

In addition, it can be seen that the fan 17 at a second interior 3b facing and thus one of the first cold storage 5a opposite side of the cold storage 5b and in this context preferably also in the x direction is arranged centrally. The inside air of the second interior 3b gets through this fan 17 sucked and to this bottom of the second cold storage 5b which causes it to cool and flow to the side and then circulate down again.

LIST OF REFERENCE NUMBERS

1

 Household refrigerator

2

 inner container

3a, 3b

 inside rooms

4

 door

5a, 5b, 5c

 cold storage

6, 6 '

 wall

7a, 7b

 storage material

8th

 condenser

9, 9a, 9b

 Evaporator

10

 compressor

11a

 ceiling wall

11b, 12

 rear wall

13

 wall

14

 air duct

15

 flap

16

 inlet

17

 fan

18

 Control unit

19

 openings

20

 2-way valve

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 102010041951 A1 [0003]
• DE 102010041952 A1 [0004]

Claims (15)

Household refrigeration appliance ( 1 ) with a first coolable interior ( 3a . 3b ) for storing refrigerated goods, with at least a first cold storage ( 5a . 5c ) with a storage material ( 7a . 7c ), as well as a refrigeration cycle for cooling the storage material ( 7a . 7c ) of the first cold storage ( 5a . 5c ), characterized in that the at least one first cold storage ( 5a . 5c ) for cooling the first interior ( 3a ), and a second coolable interior ( 3b ) is designed for storing refrigerated goods, and at least a second cold storage ( 5b . 5c ) with a storage material ( 7b . 7c ) for cooling the second interior ( 3b ) is arranged. Household refrigeration appliance ( 1 ) according to claim 1, characterized in that the first interior ( 3a ) is a freezer and the second interior ( 3b ) is a refrigerator or fresh food compartment. Household refrigeration appliance ( 1 ) according to claim 1 or 2, characterized in that the at least one first ( 5a ) and the at least one second cold storage ( 5b ) separate cold storage with separate storage materials ( 7a . 7b ) are. Household refrigeration appliance ( 1 ) according to claim 3, characterized in that a first memory material ( 7a ) of the first cold storage ( 5a ) has a first phase transformation temperature, and a second memory material ( 7b ) of the second cold storage ( 5b ) one to the first storage material ( 7a ) has higher phase transition temperature. Household refrigeration appliance ( 1 ) according to one of the preceding claims, characterized in that the first cold storage ( 5a ) inside the first interior ( 3a ) or in a first interior space ( 3a ) bounding wall ( 11a . 11b ) is arranged and L-shaped. Household refrigeration appliance ( 1 ) according to claim 5, characterized in that the first cold storage ( 5a ) in cross-section of the household refrigerator ( 1 ) over the entire height of a rear wall ( 11b ) of the first interior ( 3a ) on or in the back wall ( 11b ) and at least partially over the depth (x-direction) of a ceiling wall ( 11a ) of the first interior ( 3a ) on or in the ceiling wall ( 11a ). Household refrigeration appliance ( 1 ) according to one of the preceding claims, characterized in that the at least one second cold storage ( 5b ) outside the first interior ( 3a ) and in an air duct ( 14 ), wherein the air duct ( 14 ) between a boundary wall, in particular a rear wall ( 12 ), an inner container ( 2 ) of the household refrigerating appliance ( 1 ) and an air duct ( 14 ) from the second interior ( 3b ) separating insulating wall ( 13 ), wherein the insulating wall ( 13 ) an inlet ( 16 ) and an outlet through which an air flow between the air duct ( 14 ) and the second interior ( 3b ) is producible. Household refrigeration appliance ( 1 ) according to claim 7, characterized in that the second cold storage ( 5b ) over at least three quarters of the height of the boundary wall ( 12 ) and arranged at this or formed integrated therein. Household refrigeration appliance ( 1 ) according to one of claims 3 to 8, characterized in that the storage material ( 7b ) of the second cold storage ( 5b ) Can be cooled by the refrigeration cycle, in particular freezable, is Household refrigeration appliance ( 1 ) according to one of claims 3 to 8, characterized in that the first and the second cold storage by a single cold storage ( 5c ) with a storage material ( 7c ) formed by one between the first ( 3a ) and the second interior ( 3b ) and the two interiors ( 3a . 3b ) thermally insulating partition ( 6 ) over both interiors ( 3a . 3b ). Household refrigeration appliance ( 1 ) according to one of claims 3 to 9, characterized in that a first cold storage ( 5a ) a floor of the first interior ( 3a ) forms and a second cold storage ( 5b ) the ceiling of the first interior ( 3a ) arranged second interior ( 3b ) and between the two cold storage ( 5a . 5b ) a partition wall ( 6 ' ) is arranged. Household refrigeration appliance ( 1 ) according to claim 11, characterized in that the partition wall ( 6 ' ) Heat insulating but not heat insulating is formed. Household refrigeration appliance ( 1 ) according to one of the preceding claims 11 or 12, characterized in that at least one evaporator ( 9c ) in the refrigeration cycle for cooling the storage materials ( 7a . 7b ) the cold storage ( 5a . 5b ) provided with both cold storage ( 5a . 5b ) is thermally coupled, in particular in the storage materials ( 7a . 7b ) and through openings ( 19 ) in the cold stores ( 5a . 5b ) and the partition ( 6 ' ) in both cold stores ( 5a . 5b ). Household refrigeration appliance ( 1 ) according to one of the preceding claims 1 to 12, characterized in that the refrigeration cycle at least one evaporator ( 9a . 9b . 9c ), which is used to cool the storage material ( 7a . 7b . 7c ) or the storage materials ( 7a . 7b . 7c ) thermally with this or this is coupled, in particular to the cold storage ( 5a . 5b . 5c ) or the cold storage ( 5a . 5b . 5c ) is arranged directly on the outside or in cold storage ( 5a . 5b . 5c ) or the cold storage ( 5a . 5b . 5c ) in the memory material ( 7a . 7b . 7c ) is arranged. Household refrigeration appliance ( 1 ) according to one of the preceding claims, characterized in that the refrigeration cycle can be coupled to an external energy supply network for the supply of electrical energy and in the coupled state of the cold storage ( 5a . 5b . 5c ) or the cold storage ( 5a . 5b . 5c ) through the activated refrigeration cycle, in particular an evaporator ( 9a . 9b . 9c ) of the refrigeration cycle, can be frozen and / or the refrigeration cycle can be coupled to an external energy supply network for supplying electrical energy, and in the decoupled state the cooling of at least the first internal space ( 3a ), in particular all interiors ( 3a . 3b ), by the, in particular frozen, storage material ( 7a ) of the first cold storage ( 5a ) stored cold takes place, in particular when the first refrigeration cycle is deactivated.

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