DE102019210539A1 - Household refrigeration appliance device - Google Patents

Abstract

The invention is based on a household refrigerator device (10a-k) with at least one refrigeration compartment (14a-k) and at least one second refrigeration compartment (16a-k), with at least one refrigeration circuit (48a-k), which has at least one evaporator unit (52a-k ) with at least three evaporators (22a-k, 24a-k, 26a-k, 28a-k), of which at least two are connected in series. In order to provide a generic device with improved cooling properties, it is proposed that at least two of the evaporators (22a-k, 24a-k, 26a-k, 28a-k) are connected in parallel to one another.

Description

The invention relates to a domestic refrigerator device according to the preamble of claim 1.

A household refrigerator is already known from the prior art with a refrigeration compartment and a second refrigeration compartment. Here, the cold compartment is designed as a cooling compartment and the second cold compartment as a freezer compartment. The domestic refrigeration appliance also has a refrigeration circuit which has an evaporator unit with exactly two evaporators. The evaporators are all connected in series and all assigned to the same refrigeration compartment, namely the freezer compartment.

The object of the invention is in particular, but not limited to, to provide a device of the generic type with improved cooling properties. The object is achieved according to the invention by the features of claim 1, while advantageous embodiments and developments of the invention can be found in the subclaims.

The invention is based on a household refrigerator device with at least one refrigeration compartment and at least one second refrigeration compartment, with at least one refrigeration circuit which has at least one evaporator unit with at least three evaporators, of which at least two are connected in series.

It is proposed that at least two of the evaporators are connected in parallel to one another.

Such a configuration can advantageously achieve optimized cooling properties. Advantageously, an evaporator temperature of the evaporators connected in parallel can be set and / or controlled and / or regulated in a particularly simple manner, which advantageously enables individual and / or targeted cooling of the cold compartments to which the evaporators are assigned.

A “household refrigerator device” should advantageously be understood to mean at least a part, advantageously a subassembly, of a household refrigerator. Particularly advantageously, a household refrigerator having the household refrigerator device is provided to cool goods to be cooled, advantageously food such as drinks and / or meat and / or fish and / or milk and / or dairy products, in an operating state, advantageously to bring about a longer shelf life of the goods to be cooled . The household refrigeration device having the household refrigeration device can be, for example, a freezer and advantageously a refrigeration cabinet. For example, the household refrigerator has at least one cold compartment for storing refrigerated goods. At least one cold compartment, advantageously of the household refrigeration device, could for example be a refrigerator compartment and / or a freezer compartment and / or a temperature-regulated compartment and / or a vegetable compartment and / or a fruit compartment and / or a drinks compartment and / or a shock refrigeration compartment.

For example, the household refrigeration appliance device has at least one device body which advantageously defines and / or forms at least a large part of an external shape of the household refrigeration appliance. The device body advantageously defines at least one cold compartment at least partially. A “device body” should advantageously be understood to mean a unit which forms at least a part, advantageously a large part, of an outer boundary, advantageously a housing, advantageously a household refrigerator housing, and which forms at least a part, advantageously a large part, of an outer boundary of at least one refrigeration compartment Are defined. For example, the device body has at least one side wall, advantageously at least two side walls, and / or at least one rear wall and / or at least one top wall and / or at least one bottom wall, which together with the device door define and / or limit the refrigeration compartment in an operating state.

For example, the domestic refrigeration appliance device has at least one appliance door, advantageously at least the appliance door. A "device door" should advantageously be understood to mean a unit which, in an assembled state, is movably and advantageously pivotably connected to the device body relative to the device body and which advantageously in an operating state at least part of an outer boundary, advantageously a housing, advantageously a household refrigerator housing , trains. In one operating state, the device body and the device door advantageously jointly form the outer boundary, advantageously the housing, advantageously the household refrigerator housing.

The phrase that an object defines and / or delimits the cold compartment “at least partially” is to be understood advantageously as meaning that the object defines and / or delimits the cold compartment alone or together with at least one further object. The object could be the device body or the device door, for example. The further object could be, for example, the appliance door or the appliance body.

For example, the appliance door could be assigned to the cold compartment and, for example, at least partially define and / or limit and / or close the cold compartment in an operating state. The cold compartment is advantageously designed as a shock cold compartment.

The household refrigeration appliance device could, for example, have at least one second appliance door which, for example, could be assigned to the second refrigeration compartment and which, for example, in an operating state could at least partially define and / or limit and / or close the second refrigeration compartment. The second cold compartment is designed as a freezer compartment, for example.

For example, in addition to the cold compartment and, for example, to the second cold compartment, the household refrigeration appliance device could for example have at least a third cold compartment. The household refrigerator device could, for example, have at least one third device door, which could for example be assigned to the third refrigeration compartment and which, for example, in an operating state could at least partially define and / or limit and / or close the third refrigeration compartment. The third cold compartment is designed as a cooling compartment, for example.

Here and below, a description of objects provided with numbers, for example appliance doors and / or evaporators, relates to a description of an associated refrigeration compartment. For example, a third object is assigned to a third cold compartment and is, for example, free of inferences about a number of similar objects. In the case of a third evaporator, this means, for example, that an evaporator and a second evaporator can be present, but this is not necessarily the case. For example, a case is conceivable in which the household refrigeration appliance and / or the household refrigeration appliance device has a third evaporator, but is free of a second evaporator.

An “operating state” should advantageously be understood to mean a state in which the appliance door, which advantageously defines and / or delimits at least one cold compartment, rests against the appliance body and closes the cold compartment, for example. The operating state advantageously corresponds to a closed state of the appliance door.

A “cold compartment” should advantageously be understood to mean a spatial area which is provided for receiving items to be cooled, for example for the purpose of cooling the items to be cooled. For example, the cold compartment is at least partially defined and / or limited by the device body and, in an operating state, at least partially by the device door. For example, the cold compartment is provided for at least one cooling and / or freezing of at least one item to be cooled.

The cold compartment and advantageously the shock cold compartment could be designed, for example, as a shock freezer compartment and / or as a shock cooling compartment. A “shock cold compartment” should advantageously be understood to mean a cold compartment which is used at least for a rapid temperature change, for example for a rapid temperature decrease, advantageously for rapid cooling and / or for rapid freezing, for example for the purpose of cooling and / or freezing refrigerated goods is provided. For example, in addition to the rapid temperature reduction, the shock cooling compartment could be provided for increasing the temperature, such as for thawing refrigerated goods. A “rapid” temperature change should mean, for example, a temperature change of at least 0.01 ° C / min, for example at least 0.05 ° C / min, advantageously at least 0.1 ° C / min, particularly advantageously at least 0.2 ° C / min, preferably of at least 0.35 ° C / min and particularly preferably of at least 0.5 ° C / min.

For example, a shock cooling compartment, which advantageously has at least one shock cooling function and is advantageously designed as a shock cooling compartment, starting from an initial temperature of at least essentially 65 ° C to a temperature change of a refrigerated item and / or a cooling compartment to a final temperature of at least essentially 3 ° C be provided within a period of maximum 90 minutes. A shock freezer compartment, which advantageously has at least one shock freezer function and is advantageously designed as a shock freezer compartment, could, for example, starting from an initial temperature of a refrigerated item and / or a cold compartment of at least essentially 65 ° C to a temperature change to a final temperature of at least essentially -18 ° C can be provided within a maximum period of 270 minutes.

In this context, “at least substantially” should advantageously be understood to mean that a value of a predetermined value, for example, a maximum of 25%, preferably a maximum of 10% and particularly preferably deviates from a maximum of 5% of the specified value. “At least a large part” should advantageously be understood to mean a proportion, in particular a mass proportion and / or a volume proportion and / or a proportion of a number, of at least 70%, for example of at least 80%, advantageously of at least 90% and preferably of at least 95% will.

The refrigerant circuit advantageously has at least one refrigerant guide unit which defines at least one closed refrigerant path and in which at least one refrigerant circulates in an operating state, for example for the purpose of extracting heat from at least one, for example from at least two, advantageously from at least a large part and particularly advantageous from each of the cold compartments. The refrigerant circuit advantageously has at least one refrigerant which, in an operating state, circulates within the refrigerant guide unit, for example along the refrigerant path.

The refrigeration circuit advantageously has at least one compressor unit. The compressor unit advantageously has at least one compressor pump, which can be designed as a reciprocating piston pump, for example, and which in an operating state advantageously conveys and / or pumps the refrigerant through the refrigerant guide unit. The refrigeration circuit advantageously has at least one condenser unit which, for example, is connected downstream of the compressor unit in the fluid flow direction and which in an operating state liquefies the refrigerant at least to a large extent. The refrigeration circuit advantageously has at least one drying unit which, for example, is connected downstream of the condenser unit in the direction of fluid flow and which in an operating state dries the refrigerant at least to a large extent and advantageously completely, in order to avoid freezing of liquid components within the refrigerant. The refrigeration circuit advantageously has at least one heat exchanger unit which, for example, is connected downstream of the drying unit in the fluid flow direction and which is advantageously provided for exchanging thermal energy of the refrigerant.

The evaporator unit advantageously has an assembly of evaporators of the refrigeration circuit. The evaporator unit advantageously has at least one evaporator and / or at least one second evaporator and / or at least one third evaporator and / or at least one further evaporator. An “evaporator unit” should advantageously be understood to mean a unit which, in an operating state, at least partially converts at least one refrigerant from a liquid physical state to a gaseous physical state. The phrase that the evaporator "at least partially" converts at least one refrigerant from a liquid state of aggregation to a gaseous state of aggregation in an operating state should advantageously be understood to mean that the evaporator in the operating state has a share of at least 10%, for example at least 20% , advantageously at least 40%, particularly advantageously at least 60%, preferably at least 80% and particularly preferably at least 90% of a refrigerant passing through the evaporator in the operating state is converted from a liquid state to a gaseous state. An “evaporator” should advantageously be understood to mean a unit through which at least one refrigerant component of a refrigerant of the refrigeration circuit flows in an operating state and which at least partially converts the refrigerant component from a liquid state to a gaseous state in the operating state.

The expression that an evaporator is “assigned” to a refrigeration compartment should be understood, for example, to mean that the evaporator serves the refrigeration compartment in an operating state and, for example, extracts heat from the refrigeration compartment in the operating state. The phrase that an evaporator “serves” a refrigeration compartment should advantageously be understood to mean that the evaporator is provided for cooling the refrigeration compartment and, for example, extracts heat from the refrigeration compartment in an operating state. The household refrigerator device has, for example, at least one control unit, which is provided, for example, to control and / or regulate at least the evaporator. For example, the control unit is provided to control the evaporator, which operates the refrigeration compartment, in an operating state for controlling and / or regulating a temperature of the refrigeration compartment and thus, for example, to control and / or regulate the temperature of the refrigeration compartment. For example, the control unit uses the evaporator to set at least one compartment temperature in the refrigeration compartment which the evaporator serves.

A “refrigerated compartment evaporator” is to be understood in particular as an evaporator which is assigned at least to the refrigerated compartment and, advantageously in addition to the refrigerated compartment, could for example be assigned to at least one additional refrigerated compartment. For example, an evaporator designed as a shock-freezing compartment evaporator is assigned to at least one shock-freezing compartment and could, advantageously, additionally, for example, be assigned to at least one freezer compartment and / or at least one cooling compartment. An evaporator designed as a freezer compartment evaporator is for example assigned to at least one freezer compartment and could, advantageously additionally, for example at least one shock freezer compartment and / or at least one Be assigned to the refrigerator compartment. For example, an evaporator designed as a refrigerated compartment evaporator is assigned to at least one refrigerated compartment and could, advantageously additionally, be assigned, for example, to at least one shock freezer compartment and / or at least one freezer compartment.

The cold compartment could, for example, be designed as a shock freezer compartment. A shock freezer compartment, which could, for example, meet the requirements of a commercial shock refrigerator, can advantageously be integrated in a household refrigerator. A refrigeration capacity can advantageously be adapted to different refrigeration capacity requirements, which advantageously enables efficient operation of the refrigeration circuit, for example both in a storage process and in a shock refrigeration process.

For example, the second cold compartment could be designed as a freezer compartment. The household refrigeration appliance device could, for example, have at least a third refrigeration compartment, which could be designed as a cooling compartment, for example.

A refrigerant which flows through a first of the series-connected evaporators also advantageously flows through a second of the series-connected evaporators. A quantity of refrigerant passing through a respective one of the evaporators is at least essentially and advantageously completely identical in the case of the series-connected evaporators.

At least one of the evaporators is advantageously arranged in a parallel branch of the parallel connection and at least one of the evaporators is arranged in a second parallel branch of the parallel connection. For example, at least three, for example at least four and advantageously all of the evaporators of the evaporator unit could be connected in parallel to one another. For example, a refrigerant leaving the compressor unit is divided into parallel branches of the parallel circuit, which is why different or equal amounts of refrigerant can flow in one operating state through individual parallel branches of the parallel circuit, for example depending on the design of the parallel branches.

“Provided” is to be understood in particular as specifically programmed, designed and / or equipped. The fact that an object is provided for a specific function should be understood in particular to mean that the object fulfills and / or executes this specific function in at least one application and / or operating state. In the present text, features introduced and / or provided with “in particular” are to be understood as purely optional and not limiting.

The evaporator unit could for example have a total of three evaporators. The evaporator unit preferably has a total of at least four evaporators. For example, at least one of the evaporators, for example the evaporator, could, for example, be assigned to the refrigeration compartment and, for example, be designed as a shock refrigeration compartment evaporator. At least one of the evaporators, for example the second evaporator, could, for example, be assigned to the second refrigeration compartment and, for example, be designed as a freezer compartment evaporator. For example, at least one of the evaporators, for example the third evaporator, could, for example, be assigned to the third refrigeration compartment and, for example, be designed as a refrigeration compartment evaporator. At least one of the evaporators, for example the fourth evaporator, could, for example, be assigned to the refrigeration compartment and, for example, be designed as a further shock refrigeration compartment evaporator. As a result, optimal cooling properties can advantageously be achieved. Different evaporators can advantageously be assigned to different refrigeration compartments, as a result of which demand-based and / or independent cooling of the refrigeration compartments can advantageously be achieved.

It is also proposed that at least two of the evaporators are connected in parallel to one another and at least one of the evaporators is connected in series with the parallel connection of evaporators. For example, the shock refrigeration compartment evaporator and the freezer compartment evaporator could be connected in parallel to one another and, for example, the refrigeration compartment evaporator could be connected in series with the parallel connection of evaporators. The shock refrigeration compartment evaporator and the refrigeration compartment evaporator could for example be connected in parallel to one another and, for example, the freezer compartment evaporator could be connected in series with the parallel connection of evaporators. For example, the freezer compartment evaporator and the refrigerator compartment evaporator could be connected in parallel to one another and, for example, the shock refrigeration compartment evaporator could be connected in series with the parallel connection of evaporators. As a result, a high degree of flexibility can advantageously be made possible, advantageously with regard to influencing cooling properties and / or with regard to an arrangement of the evaporators relative to one another.

For example, the evaporator connected in series could be connected upstream of the parallel connection of evaporators in the fluid flow direction and, for example, be arranged closer to the heat exchanger unit in the fluid flow direction. The evaporator connected in series is preferably connected downstream of the parallel connection of evaporators in the direction of fluid flow and, for example, is at a greater distance from the heat exchanger unit in the direction of fluid flow than the parallel connection of evaporators. As a result, an efficient arrangement of the series-connected evaporator can advantageously be achieved, whereby particularly suitable cooling properties can advantageously be achieved.

It is further proposed that at least two of the evaporators are connected in series and at least one of the evaporators is connected in parallel to the series connection of evaporators. For example, at least two evaporators could be arranged in at least one parallel branch of the parallel circuit, which evaporators could for example be connected in series. For example, the shock refrigerator compartment evaporator and the freezer compartment evaporator could be arranged with one another in a first parallel branch of the parallel circuit on evaporators and connected in series and the refrigerated compartment evaporator could for example be arranged in a second parallel branch of the parallel circuit on evaporators. The shock cooling compartment evaporator and the cooling compartment evaporator could, for example, be arranged with one another in a first parallel branch of the parallel circuit on evaporators and connected in series and the freezer compartment evaporator could be arranged, for example, in a second parallel branch of the parallel circuit on evaporators. For example, the freezer compartment evaporator and the refrigerated compartment evaporator could be arranged with one another in a first parallel branch of the parallel connection on evaporators and connected in series and the shock refrigeration compartment evaporator could for example be arranged in a second parallel branch of the parallel connection on evaporators. As a result, an efficient circuit on evaporators can advantageously be provided, by means of which optimal cooling can advantageously be achieved.

It is also proposed that at least one of the evaporators is designed as a shock-freezing compartment evaporator and is advantageously assigned to at least the shock-freezing compartment. As a result, optimal operation of the shock-freezing compartment can be made possible, namely advantageously independently of a compartment temperature to be achieved and / or of a compartment temperature change to be achieved. The shock cooling compartment can advantageously be cooled in a particularly targeted manner, as a result of which a compartment temperature of the shock cooling compartment can advantageously be optimally set and / or controlled and / or monitored.

It is also proposed that at least one of the evaporators is designed as a freezer compartment evaporator and is advantageously assigned to at least the freezer compartment. As a result, the freezer compartment can advantageously be cooled in a particularly targeted manner, as a result of which a compartment temperature of the freezer compartment can advantageously be optimally set and / or controlled and / or monitored.

It is also proposed that at least one of the evaporators is designed as a refrigerated compartment evaporator and is advantageously assigned to at least the refrigerated compartment. As a result, the cooling compartment can advantageously be cooled in a particularly targeted manner, as a result of which a compartment temperature of the cooling compartment can advantageously be optimally set and / or controlled and / or monitored.

It is further proposed that the household refrigeration appliance device has at least one flow setting unit which has at least one flow setting element which is arranged in the refrigeration circuit and which is provided to use the flow setting element to allow a flow of at least one refrigerant through the refrigeration circuit, advantageously through the refrigerant guide unit of the refrigeration circuit, adjust. In an operating state, the flow setting unit, advantageously depending on an activation by the control unit, uses the flow setting element to set a flow of the refrigerant through the refrigeration circuit, advantageously through the refrigerant guide unit of the refrigeration circuit. For example, the flow adjustment element could have at least one valve, advantageously at least one expansion valve and particularly advantageously at least one temperature-controlled expansion valve, and could advantageously be designed as such. The flow setting element could, for example, alternatively or additionally, advantageously have at least one throttle and particularly advantageously at least two throttles which, advantageously depending on an activation by the control unit, could advantageously adjust the flow of the refrigerant through the refrigeration circuit, advantageously through the refrigerant guide unit of the refrigeration circuit . For example, the flow adjustment element could have at least one flow blocking element, which could advantageously have exactly two positions. The flow blocking element could, for example, block a flow of the refrigerant through the refrigerant circuit in at least one closed position of the flow blocking element and enable the refrigerant to flow through the refrigerant circuit in at least one open position of the flow blocking element. The control unit could, advantageously by means of the flow setting unit, advantageously set an evaporator temperature Set at least one of the evaporators as high as possible and advantageously evaporate at least a large part of the refrigerant passing through the evaporator in the evaporator, whereby particularly optimal cooling properties can advantageously be made possible. As a result, targeted control and / or regulation of an amount of refrigerant circulating through the refrigeration circuit can advantageously be achieved, as a result of which compartment temperatures can advantageously be optimally set and / or regulated and / or controlled.

For example, the cold compartments could each be separated from one another and in particular be free of fluid connections and / or sealed off from one another, in particular on an entry side of the cold compartments. The household refrigeration appliance device preferably has at least one cold duct unit which has at least one cold duct which fluidly connects the cold compartments to one another and which is provided for fluid exchange between the cold compartments. The household refrigeration appliance device advantageously has at least one fan unit which, in an operating state, advantageously transports fluid, particularly advantageously cooling air, through the cold duct unit, advantageously through the cold duct. As a result, an exchange of cold between the cold compartments can advantageously be made possible in a structurally simple manner, whereby a setting of compartment temperatures of the cold compartments can advantageously be carried out in a targeted and / or simple manner.

It is also proposed that the household refrigerator device has at least one flap unit which has at least one flap element which is arranged in the cold duct and which is provided to at least partially block and / or release the cold duct depending on a position of the flap element. For example, the flap element could have at least two and, for example, exactly two positions and, for example, block the cold duct in a closed position of the flap element and release the cold duct in an open position of the flap element. The flap element preferably has at least three, advantageously at least four, particularly advantageously at least six, preferably at least eight and particularly preferably a plurality of positions. The phrase that the flap unit is intended to "at least partially" block and / or release the cold duct depending on a position of the flap element is to be understood in particular to mean that the flap unit advantageously has at least one section depending on a position of the flap element of a cross section of the cold channel, blocked and advantageously at least one further section, advantageously of the cross section of the cold channel, releases. In at least one closed position of the flap element, the section could for example correspond to the cross section of the cold duct at least to a large extent and advantageously completely and the further section could for example be at least essentially and advantageously exactly zero. In at least one open position of the flap element, the section could, for example, be at least substantially and advantageously exactly zero and the further section, for example, correspond to the cross section of the cold duct at least to a large extent and advantageously completely. In further positions of the flap element, for example, values of the section and / or the further section could change, advantageously relative to the cross section of the cold duct, particularly advantageously continuously, with a sum of a value of the section and the value of the further section at least substantially and advantageously could correspond exactly to a value of the cross section of the cold duct. As a result, an adjustment and / or regulation and / or control of the fluid exchange between the refrigeration compartments can advantageously be carried out in a particularly simple and / or efficient manner, whereby an advantageous construction can advantageously be achieved.

A setting and / or regulation and / or control of at least one compartment temperature of at least one of the cold compartments could, for example, take place exclusively by means of the evaporator and / or by means of the fluid exchange. The control unit could advantageously set and / or regulate and / or control at least one compartment temperature of at least one of the cold compartments, for example exclusively, by means of the evaporator and / or by means of the fluid exchange. The household refrigeration appliance device preferably has at least one heating unit which is provided for heating at least one of the refrigeration compartments. The heating unit could, for example, have at least one heating element, which could advantageously be assigned to the refrigeration compartment. The heating unit could advantageously have at least two heating elements and particularly advantageously at least three heating elements, which could each be assigned to at least one of the cold compartments. The heating elements, which could each be assigned to at least one of the cold compartments, could for example be arranged within the cold compartment to which the corresponding heating element is assigned. The heating element is preferably assigned to the evaporator, which is assigned to the same refrigeration compartment as the heating element, and is advantageously arranged on this evaporator. The heating element assigned to the evaporator is advantageously provided for defrosting the evaporator and / or for heating the refrigeration compartment. As a result, advantageously in the case of undercooling at least one of the cold compartments and / or in the case of a thawing process in at least one of the cold compartments, a fast and / or targeted Increasing the compartment temperature of the cold compartment can be made possible, whereby a high degree of flexibility can advantageously be achieved.

It is also proposed that the household refrigerator device has at least one control unit, advantageously at least the control unit, which controls the flow rate setting unit and / or the flap unit for controlling and / or regulating and / or setting a compartment temperature of at least one of the refrigeration compartments. Advantageously for the control and / or regulation and / or setting of a compartment temperature of at least one of the cold compartments, the control unit sets at least one position of the flow adjustment element and / or at least one position of the flap element in an operating state. As a result, the compartment temperature of the refrigeration compartment can advantageously be influenced in a targeted manner and / or in various ways, as a result of which an optimal compartment temperature control can be provided.

The control unit could, for example, control and / or regulate and / or set the compartment temperature of the refrigeration compartment exclusively by activating the flow setting unit and / or the flap unit. In addition to controlling and / or regulating the compartment temperature, the control unit preferably activates the heating unit. A particularly high degree of flexibility can advantageously be achieved in this way.

Particularly optimal cooling properties can advantageously be achieved by a household refrigeration appliance with at least one household refrigeration appliance according to the invention.

The household refrigerator device should not be limited to the application and embodiment described above. In particular, the domestic refrigeration appliance device can have a number of individual elements, components and units that differs from a number of individual elements, components and units mentioned herein in order to fulfill a mode of operation described herein.

Further advantages emerge from the following description of the drawings. Exemplary embodiments of the invention are shown in the drawing. The drawing, the description and the claims contain numerous features in combination. The person skilled in the art will expediently also consider the features individually and combine them into useful further combinations.

• 1 ein Haushaltskältegerät mit einer Haushaltskältegerätevorrichtung in einem geschlossenen Zustand von Gerätetüren des Haushaltskältegeräts in einer schematischen perspektivischen Darstellung,
• 2 das Haushaltskältegerät aus 1 unter Vernachlässigung der Gerätetüren in einer perspektivischen Darstellung,
• 3 das Haushaltskältegerät aus 2 in einer perspektivischen Schnittdarstellung,
• 4 das Haushaltskältegerät aus 2 in einer weiteren perspektivischen Schnittdarstellung,
• 5 das Haushaltskältegerät in der Darstellung aus 4, wobei zusätzlich eine Kältekanaleinheit und eine Klappeneinheit schematisch und besonders hervorgehoben dargestellt sind,
• 6 das Haushaltskältegerät aus 2 in einer Schnittdarstellung durch ein Kältefach der Haushaltskältegerätevorrichtung,
• 7 einen vierten Verdampfer der Haushaltskältegerätevorrichtung in einer schematischen perspektivischen Darstellung,
• 8 ein Schaltbild eines Kältekreislaufs der Haushaltskältegerätevorrichtung in einer schematischen Darstellung,
• 9 ein Diagramm, in welchem eine Kälteleistung über einer Verdampfertemperatur aufgetragen ist, in einer schematischen Darstellung,
• 10 ein Schaltbild eines alternativen Kältekreislaufs einer alternativen Haushaltskältegerätevorrichtung in einer schematischen Darstellung,
• 11 ein Schaltbild eines alternativen Kältekreislaufs einer alternativen Haushaltskältegerätevorrichtung in einer schematischen Darstellung,
• 12 ein Schaltbild eines alternativen Kältekreislaufs einer alternativen Haushaltskältegerätevorrichtung in einer schematischen Darstellung,
• 13 ein Schaltbild eines alternativen Kältekreislaufs einer alternativen Haushaltskältegerätevorrichtung in einer schematischen Darstellung,
• 14 ein Schaltbild eines alternativen Kältekreislaufs einer alternativen Haushaltskältegerätevorrichtung in einer schematischen Darstellung,
• 15 ein Schaltbild eines alternativen Kältekreislaufs einer alternativen Haushaltskältegerätevorrichtung in einer schematischen Darstellung,
• 16 ein Schaltbild eines alternativen Kältekreislaufs einer alternativen Haushaltskältegerätevorrichtung in einer schematischen Darstellung,
• 17 ein Schaltbild eines alternativen Kältekreislaufs einer alternativen Haushaltskältegerätevorrichtung in einer schematischen Darstellung,
• 18 ein Schaltbild eines alternativen Kältekreislaufs einer alternativen Haushaltskältegerätevorrichtung in einer schematischen Darstellung und
• 19 ein Schaltbild eines alternativen Kältekreislaufs einer alternativen Haushaltskältegerätevorrichtung in einer schematischen Darstellung.

Show it:

• 1 a household refrigeration appliance with a household refrigeration appliance device in a closed state of the appliance doors of the household refrigeration appliance in a schematic perspective illustration,
• 2 the household refrigerator off 1 neglecting the appliance doors in a perspective view,
• 3 the household refrigerator off 2 in a perspective sectional view,
• 4th the household refrigerator off 2 in a further perspective sectional view,
• 5 the household refrigerator in the representation 4th , whereby a cold duct unit and a flap unit are also shown schematically and highlighted,
• 6th the household refrigerator off 2 in a sectional view through a refrigeration compartment of the household refrigeration appliance,
• 7th a fourth evaporator of the household refrigerator device in a schematic perspective illustration,
• 8th a circuit diagram of a refrigeration circuit of the household refrigerator device in a schematic representation,
• 9 a diagram in which a cooling capacity is plotted against an evaporator temperature, in a schematic representation,
• 10 a circuit diagram of an alternative refrigeration circuit of an alternative household refrigerator device in a schematic representation,
• 11 a circuit diagram of an alternative refrigeration circuit of an alternative household refrigerator device in a schematic representation,
• 12 a circuit diagram of an alternative refrigeration circuit of an alternative household refrigerator device in a schematic representation,
• 13th a circuit diagram of an alternative refrigeration circuit of an alternative household refrigerator device in a schematic representation,
• 14th a circuit diagram of an alternative refrigeration circuit of an alternative household refrigerator device in a schematic representation,
• 15th a circuit diagram of an alternative refrigeration circuit of an alternative household refrigerator device in a schematic representation,
• 16 a circuit diagram of an alternative refrigeration circuit of an alternative household refrigerator device in a schematic representation,
• 17th a circuit diagram of an alternative refrigeration circuit of an alternative household refrigerator device in a schematic representation,
• 18th a circuit diagram of an alternative refrigeration circuit of an alternative household refrigeration appliance device in a schematic representation and
• 19th a circuit diagram of an alternative refrigeration circuit of an alternative household refrigerator device in a schematic representation.

1 shows in particular a household refrigerator 12a. The household refrigeration device 12a is designed in particular as a refrigerator and as a freezer, in particular as a combination refrigerator-freezer.

The household refrigerator 12a has in particular a household refrigerator device 10a. The household refrigeration appliance device 10a has, in particular, an appliance body 38a. The device body 38a defines and / or forms, in particular, at least partially an outer boundary of a household refrigeration appliance housing of the household refrigeration appliance 12a.

The household refrigerator device 10a has in particular at least one and advantageously exactly one refrigeration compartment 14a (cf. 2 to 6th ). The device body 38a defines and / or delimits in particular at least partially the refrigeration compartment 14a. The cold compartment 14a is advantageously designed as a shock cold compartment. The cold compartment 14a is designed in particular as a shock freezer and in particular as a shock cooling compartment. In particular, the cold compartment 14a is provided for rapid freezing and / or rapid cooling. The cold compartment 14a is advantageously provided at least for cooling at least one item to be cooled. In an operating state, the cold compartment 14a could at least cool at least one item to be cooled.

The cold compartment 14a designed as a shock refrigeration compartment differs advantageously from a super function in which, for example in a compartment designed as a freezer compartment, when refrigerated goods are frozen, the compartment is cooled with full cooling capacity and thus a compartment temperature of the compartment is lowered, in particular depending on a Activation of the super function by an operator. As a result, freshly stored refrigerated goods can be frozen faster than without this super function, in particular because of a greater temperature difference and / or because of continuous cooling. The cold compartment 14a embodied as a shock cold compartment differs from such a superfunction, since the cold compartment 14a is specially optimized and / or provided for shock refrigeration processes. The shock cooling process could for example be a shock cooling process and / or a shock freezing process.

In particular, in addition to rapid freezing and / or rapid cooling, the cold compartment 14a is provided in particular for storing at least one item of refrigerated items, such as food, at an at least substantially constant temperature. The temperature at which the cold compartment 14a is provided in particular for storing the items to be cooled could, for example, be at least −18 ° C. and advantageously a maximum of 15 ° C., for example a maximum of 55 ° C. In an operating state, the cold compartment 14a could cool and / or freeze the goods to be chilled at an at least substantially constant temperature.

In the present exemplary embodiment, the cold compartment 14a is provided, in particular in addition, for increasing the temperature of at least one item to be cooled. For example, the refrigerated compartment 14a could be provided for temperature control, for example of bottles, and / or for thawing, for example foodstuffs, and / or for bringing up the temperature, for example meals.

The household refrigeration appliance device 10a has in particular at least one and advantageously exactly one appliance door 40a, which is particularly associated with the refrigeration compartment 14a (cf. 1 ). The appliance door 40a is in particular mounted so as to be pivotable relative to the appliance body 38a. In a closed state of the appliance door 40a, which in particular in FIG 1 is shown, the appliance door 40a closes in particular that Cold compartment 14a. In the closed state of the appliance door 40a, the appliance door 40a defines and / or delimits, in particular, the cold compartment 14a at least partially and advantageously together with the appliance body 38a.

The cold compartment 14a is designed in particular as a separate and / or independent cold compartment. The cold compartment 14a is advantageously separately accessible. Accessibility to the cold compartment 14a is in particular dependent on an open state of the appliance door 40a, which is in particular assigned to the cold compartment 14a, and advantageously independent of an open state of further appliance doors 42a, 44a.

The household refrigerator device 10a has in particular at least one and advantageously exactly one second refrigeration compartment 16a (cf. 2 to 5 ). The device body 38a defines and / or delimits in particular at least partially the second cold compartment 16a. The second cold compartment 16a is advantageously designed as a freezer compartment. In particular, the second cold compartment 16a is provided for freezing at least one item to be cooled.

The household refrigerator device 10a has in particular at least one and advantageously exactly one second device door 42a, which is in particular assigned to the second refrigeration compartment 16a (cf. 1 ). The second appliance door 42a is in particular mounted so as to be pivotable relative to the appliance body 38a. In a closed state of the second appliance door 42a, which in particular in FIG 1 is shown, the second appliance door 42a closes in particular the second refrigeration compartment 16a. In the closed state of the second appliance door 42a, the second appliance door 42a defines and / or delimits, in particular, the second cold compartment 16a at least partially and advantageously together with the appliance body 38a.

The second cold compartment 16a is designed in particular as a separate and / or independent cold compartment. The second cold compartment 16a is advantageously separately accessible. Accessibility to the second cold compartment 16a is in particular dependent on an open state of the second appliance door 42a, which is in particular assigned to the second cold compartment 16a, and advantageously independent of an open state of further appliance doors 40a, 44a.

The household refrigerator device 10a has in particular at least one and advantageously exactly one third refrigeration compartment 18a (cf. 2 to 5 ). The device body 38a defines and / or delimits in particular at least partially the third cold compartment 18a. The third cold compartment 18a is advantageously designed as a refrigerated compartment. In particular, the third cold compartment 18a is provided for cooling at least one item to be cooled.

The household refrigerator device 10a has in particular at least one and advantageously exactly one third device door 44a, which is in particular assigned to the third refrigeration compartment 18a (cf. 1 ). The third appliance door 44a is in particular mounted so as to be pivotable relative to the appliance body 38a. In a closed state of the third appliance door 44a, which in particular in FIG 1 is shown, the third appliance door 44a closes in particular the third refrigeration compartment 18a. In the closed state of the third appliance door 44a, the third appliance door 44a defines and / or delimits, in particular, the third cold compartment 18a at least partially and advantageously together with the appliance body 38a.

The third cold compartment 18a is designed in particular as a separate and / or independent cold compartment. The third cold compartment 18a is advantageously separately accessible. Accessibility to the third cold compartment 18a is in particular dependent on an open state of the third appliance door 44a, which is in particular assigned to the third cold compartment 18a, and advantageously independent of an open state of further appliance doors 40a, 42a.

The third cold compartment 18a is in particular arranged adjacent, advantageously directly adjacent, to the cold compartment 14a with respect to a height direction 20a. In particular, the third cold compartment 18a is arranged above the cold compartment 14a and the second cold compartment 16a with respect to the height direction 20a. The third cold compartment 18a is designed and / or arranged as the uppermost cold compartment with respect to the height direction 20a.

The second cold compartment 16a is arranged in particular adjacent, advantageously directly adjacent, to the cold compartment 14a with respect to the height direction 20a. In particular, the second cold compartment 16a is arranged below the cold compartment 14a and the third cold compartment 18a with respect to the height direction 20a. The second cold compartment 16a is designed and / or arranged as the lowermost cold compartment with respect to the height direction 20a.

In particular, the cold compartment 14a is arranged adjacent, advantageously directly adjacent, to the second cold compartment 16a and to the third cold compartment 18a with respect to the height direction 20a. The cold compartment 14a is with respect to the height direction 20a, arranged in particular between the second cold compartment 16a and the third cold compartment 18a.

The household refrigeration appliance device 10a has in particular at least one and advantageously precisely one cold duct unit 60a (cf. 5 and 6th ). The cold duct unit 60a advantageously has at least one cold duct 62a.

The cold duct 62a advantageously connects at least two cold compartments 14a, 16a, 18a to one another in terms of fluid technology. The cold duct 62a is advantageously provided for fluid exchange between the cold compartments 14a, 16a, 18a, which the cold duct 62a advantageously connects to one another in terms of fluid technology. In the present exemplary embodiment, the cold duct 62a advantageously connects at least the cold compartment 14a and the second cold compartment 16a to one another in terms of fluid technology. For example, the cold duct 62a could fluidically connect at least the cold compartment 14a and the second cold compartment 16a and the third cold compartment 18a to one another.

For example, the cold duct unit 60a could have exactly one cold duct 62a. In the present exemplary embodiment, the cold duct unit 60a advantageously has at least two cold ducts 62a, 86a. The cold duct unit 60a advantageously has the cold duct 62a and at least one further cold duct 86a. In the figures, only one object of multiple existing objects is provided with a reference symbol.

The further cold duct 86a advantageously connects at least two cold compartments 14a, 16a, 18a to one another in terms of fluid technology. The further cold duct 86a is advantageously provided for a fluid exchange between the cold compartments 14a, 16a, 18a, which the further cold duct 86a advantageously connects to one another by fluid technology. In the present exemplary embodiment, the further cold duct 86a advantageously connects at least the cold compartment 14a and the second cold compartment 16a to one another in terms of fluid technology. For example, the further cold duct 86a could fluidically connect at least the cold compartment 14a and the second cold compartment 16a and the third cold compartment 18a to one another.

At least one cold duct 62a of the cold ducts 62a, 86a, specifically advantageously the cold duct 62a, is designed as a supply air duct. In one operating state, the cold duct 62a is provided for introducing fluid into the cold compartments 14a, 16a, 18a, which the cold duct 62a advantageously connects to one another in terms of fluid technology.

At least one cold duct 62a of the cold ducts 62a, 86a, namely advantageously the further cold duct 86a, is designed as an exhaust duct. In one operating state, the further cold duct 86a is provided for the removal of fluid from the cold compartments 14a, 16a, 18a, which the further cold duct 86a advantageously connects to one another in terms of fluid technology.

The household refrigerator device 10a has in particular at least one and advantageously exactly one cooling fan unit 88a (cf. 8th ). The cooling fan unit 88a is advantageously provided to transport and / or convey and / or blow fluid through the cold channel unit 60a. In one operating state, the cooling fan unit 88a transports fluid through the cooling duct unit 60a, specifically advantageously as a function of activation by at least one control unit 70a.

The household refrigerator device 10a has in particular at least one and advantageously exactly one control unit 70a, advantageously at least that and particularly advantageously precisely the control unit 70a (cf. 1 ). In 1 the control unit 70a is shown by way of example and without restriction of an actual arrangement as being integrated in the appliance door 40a. For example, the control unit 70a could be at least partially integrated in at least one of the device doors 40a, 42a, 44a and / or in the device body 38a.

The control unit 70a is provided for controlling and / or regulating at least one device function and / or advantageously at least one main device function. In an operating state, the control unit 70a controls and / or regulates at least the cooling fan unit 88a.

The household refrigerator device 10a has, for example, at least one operator interface 90a, advantageously for inputting and / or outputting at least one operating parameter. In an operating state, the control unit 70a controls and / or regulates at least the operator interface 90a. The control unit 70a could for example initiate and / or carry out at least one action as a function of an operator input by means of the operator interface 90a.

As can be seen, for example, from the cooling capacity table below, a shock cooling process has a high air volume flow, which for example at least 40 m ³ / h, in particular at least 60 m ³ / h, advantageously at least 90 m ³ / h, particularly advantageously at least 120 m ³ / h , preferably at least 140 m ³ / h and particularly preferably at least 150 m ³ / h. Cold channels 62a, which are fluidically connected to the cold compartment 14a designed as a shock cooling compartment, therefore advantageously have a high cross-sectional area, advantageously of at least 80 cm ² , particularly advantageously of at least 100 cm ² , preferably of at least 120 cm ² and particularly preferably of at least 140 cm ² , on. In this way, a low pressure loss and / or low noise development and / or low energy consumption can advantageously be achieved.

For example, the cooling fan unit 88a provides a high air volume flow in a shock cooling process. Advantageously, in order to meet the different requirements for the air volume flow shown in the cooling capacity table, the cooling fan unit 88a advantageously has a variable speed in order to provide air volume flows that are advantageously adapted to a respective cooling process, namely advantageously while avoiding excessive noise and / or excessive energy consumption.

The household refrigerator device 10a has in particular at least one and advantageously exactly one flap unit 64a (cf. 5 ). The cold duct unit 60a advantageously has at least one flap element 66a. In 5 a single flap element 66a is shown by way of example and without loss of generality.

For example, the flap unit 64a could have a larger number of flap elements 66a, such as at least two, advantageously at least three, particularly advantageously at least four, preferably at least six and particularly preferably several flap elements 66a. A number of flap elements 66a, advantageously per cold duct 62a, 86a, could, for example, correspond to a number of cold compartments 14a, 16a, 18a which the corresponding cold duct 62a, 86a fluidly connects to one another. In the following, only one flap element 66a is described as an example.

The flap element 66a is advantageously at least to a large extent and particularly advantageously completely arranged in the cold duct 62a. The flap unit 64a is advantageously provided to at least partially block and / or release the cold duct 62a as a function of a position of the flap element 66a. In an operating state, the flap unit 64a could advantageously at least partially block and / or release the cold duct 62a as a function of a position of the flap element 66a, in particular as a function of a control and / or regulation by the control unit 70a.

In an operating state, the control unit 70a controls and / or regulates at least the flap unit 64a. The control unit 70a advantageously controls and / or regulates the position of the flap element 66a in an operating state. In an operating state, the control unit 70a advantageously sets the position of the flap element 66a.

The flap unit 64a could advantageously have at least one flap heating element 96a per flap element 66a (cf. 5 ), which could advantageously be assigned to the flap element 66a and which could advantageously be provided for heating the flap element 66a. The control unit 70a could advantageously be provided for controlling and / or regulating the flap heating element 96a and advantageously prevent at least freezing and / or freezing of the flap heating element 96a in an operating state by means of the flap heating element 96a.

For example, the flap unit 64a could be provided for separate ventilation of each refrigeration compartment 14a, 16a, 18a and, for example, separately enable and / or block a fluid-technical connection of each refrigeration compartment 14a, 16a, 18a to the refrigeration duct unit 60a, advantageously to the refrigeration duct 62a.

In this way, for example, in a heating operating state, which could be assigned to one of the cold compartments 14a, 16a, 18a and advantageously the cold compartment 14a, further cold compartments 14a, 16a, 18a could be prevented from heating up. The heating operating state could, for example, include defrosting and / or tempering, advantageously of bottles, and / or thawing, advantageously of goods to be cooled, and / or bringing up the temperature, advantageously of goods to be cooled.

Advantageously, due to the separate fluidic connection of each refrigeration compartment 14a, 16a, 18a to the cold duct unit 60a, the respective refrigeration compartments 14a, 16a, 18a could for example be supplied with cold and / or cooled as required. An unnecessarily strong cooling of at least one of the compartments 14a, 16a, 18a could for example be prevented. For example, the shock cooling compartment could receive a maximum amount of cold air when required, such as, for example, in the case of shock cooling and / or shock freezing.

The flap unit 64a could, for example, have at least two flap elements 66a, which could each be assigned to one of the cold compartments 16a, 18a adjoining the cold compartment 14a designed as a shock refrigeration compartment. Advantageously, the flap unit 64a could, advantageously by means of the flap elements 66a, supply the refrigeration compartments 16a, 18a adjoining the refrigeration compartment 14a designed as a shock refrigeration compartment at least in sections separately or simultaneously with cooling air. For example, as an alternative to the two flap elements 66a, the flap unit 64a could have, for example, a flap element 66a, which could advantageously be designed as a double flap and by means of which the flap unit 64a advantageously the cold compartments 16a, 18a adjoining the cold compartment 14a formed as a shock compartment, at least in sections separately or simultaneously could supply with cooling air. The flap unit 64a could, for example, alternatively, only supply one of the cold compartments 16a, 18a adjoining the cold compartment 14a, which is designed as a shock refrigeration compartment, with cooling air.

The cold compartments 14a, 16a, 18a advantageously have different requirements, namely advantageously due to different process conditions. These different requirements are summarized in the following table, which is referred to below as the “refrigeration capacity table”, advantageously using the example of the household refrigeration device 12a, which has a cold compartment 14a designed as a shock cold compartment and a cold compartment 16a designed as a freezer compartment and a cold compartment 18a designed as a refrigerated compartment having. With other household refrigeration devices, additional refrigeration compartments could be added, such as a cellar compartment and / or a zero-degree compartment. Cooling compartment Shock refrigeration compartment Shock refrigeration process Shock cold compartment storage process freezer Cooling capacity ↓ ↑ ↓ ↔ Temperature level ↑ ↓ ↓ ↔ ↑ ↓ Air volume flow ↓ ↑ ↓ ↔

In the cooling capacity table, for example, a down arrow ↓ means a relatively low requirement, an up arrow ↑ a relatively high requirement and a horizontal arrow ↔ a relatively moderate requirement. The refrigeration capacity table can advantageously be seen that, in particular, the refrigeration compartment 14a designed as a shock refrigeration compartment has a large range of refrigeration capacities and / or high differences in refrigeration capacities. A refrigeration capacity which the refrigeration compartment 14a designed as a shock refrigeration compartment must deliver can accordingly be very different, for example.

For example, a refrigeration capacity of the refrigeration compartment 14a embodied as a shock refrigeration compartment is significantly lower in the case of a refrigerated goods storage process than in the case of a shock refrigeration process. At least one evaporator 22a, which is assigned to the cold compartment 14a designed as a shock cooling compartment, advantageously has a volume of at least 1.7 l, in particular at least 2 l, advantageously at least 3 l, particularly advantageously at least 4 l, preferably at least 5 l and particularly preferably of at least 5.5 l and is therefore advantageously larger than the evaporator of common household refrigeration appliances which, for example, are free from a shock cooling compartment. As a result, the evaporator 22a can produce greater cooling capacities.

The household refrigerator device 10a has in particular at least one evaporator 22a and advantageously at least the evaporator 22a (cf. 3 to 5 and 8th ). The evaporator 22a is advantageously designed as a shock refrigeration compartment evaporator 30a. In the present exemplary embodiment, the evaporator 22a is advantageously designed as a lamellar evaporator. In particular, the evaporator 22a is assigned at least to the cold compartment 14a, which is designed in particular as a shock cold compartment. In one operating state, the evaporator 22a serves at least the refrigeration compartment 14a.

In the present exemplary embodiment, the evaporator 22a serves the second refrigeration compartment 16a in one operating state, in particular in addition to the refrigeration compartment 14a. In particular, the evaporator is 22a at least the second cold compartment 16a, which is designed in particular as a freezer compartment, assigned. The evaporator 22a is advantageously designed as a freezer compartment evaporator 32a.

The evaporator 22a is arranged in particular with respect to the height direction 20a in a border region 46a of the refrigeration compartment 14a and the second refrigeration compartment 16a. Both the refrigeration compartment 14a and the second refrigeration compartment 16a advantageously have a high refrigeration capacity requirement. Both the refrigeration compartment 14a and the second refrigeration compartment 16a advantageously have a need for low evaporator temperatures and / or for high air volume flows.

Due to the arrangement of the evaporator 22nd In the boundary region 46a, high pressure losses due to cold ducts 62a that are too long can advantageously be avoided. Cold ducts 62a, which carry a high air volume flow, can advantageously be made as short as possible, which advantageously allows a low probability that cold areas with ice build-up arise within the cold ducts 62a and / or that, for example due to a leak, too much cooling air to undesired Bodies can flow out. The cooling ducts 62a, which are designed as short as possible, can particularly advantageously enable a low level of noise to be generated, whereby a high level of operating convenience can advantageously be provided.

In the present exemplary embodiment, the evaporator 22a is arranged in particular in an area of the second refrigeration compartment 16a facing the refrigeration compartment 14a. In particular, the evaporator 22a is arranged in a ceiling area of the second refrigeration compartment 16a.

The household refrigerator device 10a has in particular at least one shielding wall 50a which, in an operating state, protects and / or shields the evaporator 22a from remaining areas of the second refrigeration compartment 16a and / or from contact with goods to be cooled and / or with an operator. For example, the evaporator 22a could, advantageously alternatively or additionally, be arranged in a partition wall of the device body 38a, which could advantageously separate the cold compartment 14a and the second cold compartment 16a from one another.

Advantageously, by integrating the evaporator 22a in the second refrigeration compartment 16a, which is designed as a freezer compartment, too much cooling power supplied to the second refrigeration compartment 16a can advantageously lead to additional cooling of already frozen goods, since it is advantageous in the second refrigeration compartment 14a, in contrast to the Shock refrigeration compartment trained refrigeration compartment 14a, compartment temperatures and / or evaporator temperatures are always below freezing point. In contrast, the evaporator designed as a shock refrigeration compartment evaporator 30a would have to be 22nd In the case of integration in the cold compartment 14a designed as a shock refrigeration compartment, it is advantageous in the case of warmer refrigeration processes, such as a refrigerated goods storage process, to be well insulated from the remaining areas of the refrigeration compartment 14a, which would result in high additional expenditure in terms of material and / or costs.

In one operating state, the evaporator 22a serves, in particular, both the cold compartment 14a and the second cold compartment 16a. In this way, a maximum useful volume can advantageously be provided and / or a cost-effective design can be achieved, namely advantageously through a small number of evaporators 22a, 26a, 28a.

In one operating state, the evaporator 22a, which is advantageously arranged in the second cold compartment 16a, which is designed as a freezer compartment, serves both the cold compartment 14a and the second cold compartment 16a, advantageously via the cold duct unit 60a and advantageously via the flap unit 64a. For example, in an operating state, the evaporator 22a could serve the third cold compartment 18a in addition to the cold compartment 14a and the second cold compartment 16a.

In the present exemplary embodiment, the household refrigerator device 10a has in particular at least one third evaporator 26a, which is in particular assigned to the third refrigeration compartment 18a (cf. 8th ). In one operating state, the third evaporator 26a serves, in particular, the third refrigeration compartment 18a. The third evaporator 26a is advantageously designed as a refrigerated compartment evaporator 34a. In the present exemplary embodiment, the third evaporator 26a is advantageously designed as a plate tube evaporator.

The household refrigerator device 10a advantageously has at least one fourth evaporator 28a, which is assigned in particular to the refrigeration compartment 14a (cf. 6th to 8th ). In one operating state, the fourth evaporator 28a serves, in particular, the refrigeration compartment 14a. The fourth evaporator 28a is advantageous as another shock refrigeration compartment evaporator 36a is formed. In the present exemplary embodiment, the fourth evaporator 28a is advantageously designed as a plate tube evaporator.

In the present exemplary embodiment, the fourth evaporator 28a is, for example, inside the refrigeration compartment 14th arranged. For example, the fourth evaporator 28a is arranged in the border area 46a of the cold compartment 14a and the second cold compartment 16a, specifically advantageously in one of the second cold compartment 16 facing area of the refrigeration compartment 14a and / or in a bottom area of the refrigeration compartment 14a.

The fourth evaporator 28a advantageously forms a bottom wall of the refrigeration compartment 14a and is provided, in particular, for setting up and / or placing at least one item to be cooled. The fourth evaporator 28a is advantageously provided for cooling items to be cooled by contact and / or for contact cooling items to be cooled.

The fourth evaporator 28a advantageously has at least one mounting plate 98a, which is advantageously provided for setting up and / or for placing items to be cooled. For example, alternatively or additionally, the mounting plate 98a could for example be part of the device body 38a, below which, in an installation position, the fourth evaporator 28a, advantageously at least one evaporator tube 100a of the fourth evaporator 28a, could be arranged. The mounting plate 98a consists for example at least for the most part of at least one metal. The fourth evaporator 28a advantageously has at least one evaporator tube 100a, which is advantageously part of at least one refrigerant guide unit 72a and which is advantageously provided to guide refrigerant. In an assembled state, the evaporator tube 100a is advantageously fastened to an underside of the mounting plate 98a, specifically advantageously by means of at least one connection that conducts heat well. In an assembled state, the underside of the mounting plate 98a is arranged facing away from, for example, a geometric center point and / or focus of the refrigeration compartment 14a.

Advantageously, the fourth evaporator 28a, advantageously in comparison to an embodiment without the fourth evaporator 28a, enables a substantial acceleration of cooling processes and / or freezing processes in which contact cooling is advantageously possible. An entire evaporator surface, which is available for heat dissipation, can advantageously be enlarged, advantageously in comparison to an embodiment without the fourth evaporator 28a, since cooling air provided by the cooling fan unit 88a can advantageously pass over the shock cooling compartment evaporator 30a and over the further shock cooling compartment evaporator 36a . In this way, increased cooling performance can be achieved.

The household refrigerator device 10a has in particular at least one and advantageously exactly one heating unit 68a (cf. 4th and 5 ). The heating unit 68a is advantageously provided for heating at least one of the cold compartments 14a, 16a, 18a. In one operating state, the heating unit 68a heats at least one of the cold compartments 14a, 16a, 18a, advantageously depending on a control and / or regulation by the control unit 70a. In an operating state, the control unit 70a controls and / or regulates at least the heating unit 68a.

The heating unit 68a advantageously has at least one heating element 92a per evaporator 22a, 26a, 28a and / or per cold compartment 14a, 16a, 18a. In the following, only one heating element 92a of the heating unit 68a is described, namely the heating element 92a assigned to the evaporator 22a and / or the heating element 92a assigned to the refrigeration compartment 14a. The heating unit 68a is in the 4th and 5 shown only schematically and by way of example only in the form of the heating element 92a.

The heating unit 68a is advantageously provided by means of the heating element 92a for heating at least one of the cold compartments 14a, 16a, 18a, specifically the cold compartment to which the heating element 92a is assigned. In the present exemplary embodiment, the heating element 92a is advantageously assigned to the evaporator 22a and is advantageously arranged on the evaporator 22a.

Advantageously, in addition to heating at least one of the cold compartments 14a, 16a, 18a, the heating unit 68a, advantageously by means of the heating element 92a, is provided for defrosting at least one of the evaporators 22a, 26a, 28a, namely the evaporator 22a, to which the heating element 92a assigned.

The household refrigerator device 10a has in particular at least one and advantageously exactly one refrigeration circuit 48a (cf. 8th ). In an operating state, the control unit 70a controls and / or regulates at least the refrigeration circuit 48a.

The refrigeration circuit 48a has, for example, at least one and advantageously exactly one evaporator unit 52a. The evaporator unit 52a advantageously comprises a total of evaporators 22a, 26a, 28a, for example of the refrigeration circuit 48a and advantageously of the household refrigerator device 10a and particularly advantageously of the household appliance 12a. In an operating state, the control unit 70a controls and / or regulates at least the evaporator unit 52a.

In the present exemplary embodiment, the evaporator unit 52a advantageously has a total of three evaporators 22a, 26a, 28a, for example the evaporator 22a and the third evaporator 26a and the fourth evaporator 28a. At least one of the evaporators 22a, 26a, 28a of the evaporator unit 52a, advantageously the evaporator 22a, is advantageously designed as a shock refrigeration compartment evaporator 30a assigned to the refrigeration compartment 14a. At least one of the evaporators 22a, 26a, 28a of the evaporator unit 52a, advantageously the third evaporator 26a, is advantageously designed as a refrigerated compartment evaporator 34a assigned to the third refrigeration compartment 14a. At least one of the evaporators 22a, 26a, 28a of the evaporator unit 52a, advantageously the fourth evaporator 28a, is advantageously designed as a further shock refrigerating compartment evaporator 36a assigned to the refrigerating compartment 14a.

At least two of the evaporators 22a, 26a, 28a of the evaporator unit 52a are particularly advantageously connected in series. In the present exemplary embodiment, for example, the evaporator 22a and the fourth evaporator 28a are connected in series.

At least two of the evaporators 22a, 26a, 28a of the evaporator unit 52a are particularly advantageously connected in parallel to one another. In the present exemplary embodiment, for example, the evaporator 22a and the third evaporator 26a are connected in parallel to one another. For example, the third evaporator 26a and the fourth evaporator 28a are connected in parallel to one another.

In the present exemplary embodiment, two of the evaporators 22a, 26a, 28a are connected in series and at least one of the evaporators 22a, 26a, 28a is connected in parallel to the series connection of evaporators 22a, 26a, 28a. For example, in a first parallel branch of the parallel circuit on evaporators 22a, 26a, 28a, the evaporator 22a and the fourth evaporator 28a are connected in series. In a second parallel branch of the parallel connection to evaporators 22a, 26a, 28a, the third evaporator 26a is arranged, for example, and is advantageously connected in parallel to the series connection to evaporators 22a, 26a, 28a.

The refrigeration circuit 48a advantageously has at least one refrigerant guide unit 72a, advantageously at least the refrigerant guide unit 72a, which defines at least one closed refrigerant path and in which at least one refrigerant circulates in an operating state, for example for the purpose of extracting heat from the refrigeration compartments 14a, 16a , 18a. The refrigeration circuit 48a advantageously has at least one refrigerant (not shown) which, in an operating state, circulates within the refrigerant guide unit 72a, for example along the refrigerant path, advantageously in the fluid flow direction 54a.

The refrigeration circuit 48a advantageously has at least one compressor unit 74a. The compressor unit 74a advantageously has at least one compressor pump and / or at least one compressor (not shown), which can be designed, for example, as a reciprocating piston pump and which in an operating state advantageously conveys and / or pumps the refrigerant through the refrigerant guide unit 72a. The compressor pump and / or the compressor could, for example, be designed to be speed-controlled.

The refrigeration circuit 48a advantageously has at least one condenser unit 76a which, for example, is connected downstream of the compressor unit 74a in the fluid flow direction 54a and which in an operating state liquefies the refrigerant at least to a large extent.

According to the above refrigeration capacity table, a refrigeration capacity of the refrigeration compartment 14a embodied as a shock refrigeration compartment is significantly lower in the case of a refrigerated goods storage process than in the case of a shock refrigeration process. Advantageously, with the speed-regulated compressor, a cooling capacity can be adjusted accordingly by adapting a speed of the compressor, in particular in connection with the adjustment of the flow rate setting element 58a, for example a low cooling capacity in the case of a refrigerated goods storage process and a high cooling capacity in the case of a shock cooling process. In this way, advantageously high evaporator temperatures and thus advantageously high efficiency can be achieved, whereby a good energy efficiency classification of the household refrigerator 12a can advantageously be achieved. In addition, evaporator temperatures could, for example, be kept as high as possible in each case so that all of the refrigerant, in particular the corresponding evaporator 22a, 26a, 28a, is still in the respective evaporator 22a, 26a, 28a could evaporate, with which the corresponding evaporator temperature could for example be as high as possible and thus, for example, a maximum cooling capacity could be made available to that refrigeration compartment 14a, 16a, 18a to which the corresponding evaporator 22a, 26a, 28a could be assigned, for example. This is particularly advantageous if the shock cooling compartment requires a very high cooling capacity for the shock cooling process or the shock freezing process.

9 shows, for example, a diagram in which a cooling capacity is plotted against an evaporator temperature. On an ordinate axis 106a, in 9 a cooling capacity applied. On an abscissa axis 108a in 9 applied to an evaporator temperature. Out 9 it can be seen, for example, that a cooling capacity that can be output by an evaporator 22a, 26a, 28a increases with increasing evaporator temperature and is therefore advantageously greater the higher an evaporator temperature of evaporator 22a, 26a, 28a is. As a result, the highest possible evaporator temperatures are advantageous and lead, for example, to high efficiency or to a rapid shock cooling process.

The refrigeration circuit 48a advantageously has at least one drying unit 78a, which, for example, is connected downstream of the compressor unit 74a and advantageously the condenser unit 76a in the fluid flow direction 54a and which in an operating state dries the refrigerant at least to a large extent and advantageously completely, thereby for example freezing liquid components to avoid inside the refrigerant.

The refrigeration circuit 48a advantageously has at least one heat exchanger unit 80a which, for example, is connected downstream of the compressor unit 74a and in particular the condenser unit 76a and advantageously the drying unit 78a in the fluid flow direction 54a and which is advantageously provided for exchanging thermal energy of the refrigerant. In the present exemplary embodiment, the heat exchanger unit 80a could, for example, be assigned to the parallel branches 118a, 120a. For example, as an alternative or in addition, at least one heat exchanger unit 80a could be provided for each parallel branch 118a, 120a (not shown).

The heat exchanger unit 80a is followed by the parallel connection to evaporators 22a, 26a, 28a. In the parallel connection, advantageously in addition to evaporators 22a, 26a, 28a of the evaporator unit 52a, at least one flow rate setting unit 56a is arranged and / or switched.

The household refrigeration appliance device 10a advantageously has at least one and advantageously at least the flow rate setting unit 56a. In an operating state, the control unit 70a controls and / or regulates at least the flow rate setting unit 56a.

The flow rate setting unit 56a advantageously has at least one flow rate setting element 58a. In the present exemplary embodiment, the flow rate setting unit 56a has, for example, at least two and advantageously exactly two flow rate setting elements 58a. The flow rate setting unit 56a advantageously has one flow rate setting element 58a for each parallel branch of the parallel connection on evaporators 22a, 26a, 28a.

A flow rate setting element 58a is advantageously arranged in a refrigerant path with the evaporator 22a and the fourth evaporator 28a and is advantageously connected upstream of the evaporators 22a, 28a. A flow rate setting element 58a is advantageously arranged in a refrigerant path with the third evaporator 26a and is advantageously connected upstream of the third evaporator 26a.

The flow adjustment element 58a connected upstream of the third evaporator 26a advantageously enables continuous operation of the third refrigeration compartment 18a in the event of a shock cooling process in the refrigeration compartment 14a, specifically with a corresponding refrigeration capacity which ensures an optimal compartment temperature. For example, as an alternative or in addition, the flow setting element 58a connected upstream of the third evaporator 26a could, for example, enable clocked operation of the third refrigeration compartment 18a, for example with such a low cooling capacity that the shock freeze operation is disrupted as little as possible. An interruption of the shock cooling process in favor of the third cooling compartment 18a can thereby advantageously be avoided.

For example, in the case of storage operation in the refrigeration compartment 14a, the third refrigeration compartment 18a can advantageously be operated continuously at the same time as the refrigeration compartment 14a. A high evaporator temperature of the third evaporator 26a at which the refrigerant passing through the third evaporator 26a evaporates completely in this evaporator 26a can advantageously be set by means of the flow adjusting element 58a upstream of the third evaporator 26a. This is, for example, an energy-efficient operation of the third refrigeration compartment 18a, to which the third evaporator 26a is assigned. At the same time, cooling of the evaporator 22a can advantageously be dispensed with in order, for example, to prevent an evaporator temperature which is greater than a compartment temperature assigned to the corresponding evaporator 22a, 26a, 28a.

To prevent cooling of an evaporator 22a, 26a, 28a, the control unit 70a could, for example, arrange the flow adjustment element 58a upstream of the corresponding evaporator 22a, 26a, 28a and / or a flow blocking element 84a upstream of the corresponding evaporator 22a, 26a, 28a in a closed position . In this context, a “high” evaporator temperature has a temperature which is greater than a compartment temperature of the freezer compartment and / or of the second refrigeration compartment 16a.

In the fluid flow direction 54a, the flow rate setting element 58a is connected upstream of evaporators 22a, 26a, 28a of a parallel branch of the parallel connection of evaporators 22a, 26a, 28a. Only one of the flow rate adjustment elements 58a is described below.

The flow rate setting element 58a is advantageously arranged in the refrigeration circuit 48a and advantageously in the refrigerant guide unit 72a. For example, the flow rate setting element 58a has at least one and advantageously exactly one expansion valve, which is advantageously designed as a temperature-controlled expansion valve and / or as an expansion valve controlled by an electric motor.

The flow rate setting unit 56a advantageously has at least one temperature sensor 82a which is advantageously assigned to the flow rate setting element 58a. The temperature sensor 82a is advantageously connected downstream of evaporators 22a, 26a, 28a of the parallel branch of evaporators 22a, 26a, 28a, in which, for example, the flow rate setting element 58a is connected.

For example, the flow rate setting unit 56a could have at least one further temperature sensor (not shown) which could advantageously be assigned to the flow rate setting element 58a and which could advantageously be connected between the evaporator 22a and the fourth evaporator 28a. By means of the further temperature sensor, for example by the control unit 70a and / or automatically, it could be checked and / or appropriately regulated whether a refrigerant passing through the evaporators 22a, 28a is already overheated after passing through the evaporator 22a. This could minimize a cooling capacity and / or an influence of the fourth evaporator 28a. In this way, the shock cooling compartment could particularly advantageously be particularly efficient in the case of processes with warmer temperatures, as a result of which a high level of efficiency could be made possible. An excessive cooling power provided by the fourth evaporator 28a could be compensated for, for example, by means of the heating unit 68a.

In an operating state, the flow setting unit 56a advantageously uses the flow setting element 58a to set a flow of the refrigerant through the cooling circuit 48a and advantageously through the refrigerant guide unit 72a, advantageously depending on a control and / or regulation by the control unit 70a.

In an operating state, the flow rate setting unit 56a could set a flow rate of the refrigerant through the refrigerant circuit 48a and advantageously through the refrigerant guide unit 72a as a function of a position of the flow rate setting element 58a. The control unit 70a advantageously controls and / or regulates the position of the flow rate setting element 58a in an operating state. In an operating state, the control unit 70a advantageously sets the position of the flow rate setting element 58a.

For example, the flow rate setting unit 56a could only have flow rate setting elements 58a. The flow rate setting unit 56a advantageously has at least one flow rate blocking element 84a, which is advantageously assigned to the flow rate setting element 58a. The flow blocking element 84a and the flow setting element 58a are advantageously connected in series in the fluid flow direction 54a and are advantageously arranged directly adjacent.

The flow blocking element 84a advantageously has at least one stop valve and is advantageously provided as a function of a position of the flow blocking element 84a for blocking and / or for releasing the refrigerant guide unit 72a. In this way, for example, a blockage of the refrigerant guide unit 72a can be ensured, namely advantageously independently of a sealing property of the flow rate adjustment element 58a.

Advantageously, through the flow blocking element 84a, for example, a low energy consumption and / or a good energy efficiency classification of the household refrigerator 12a can be achieved, since, for example, in the case of a lack of tightness of the flow adjusting element 58a in the closed state, a seal can be guaranteed due to the flow blocking element 84a. In this way, advantageously when the condenser unit 76a is deactivated, pressure equalization between the evaporator 22a, 26a, 28a and the condenser unit 76a and thus, for example, unnecessary energy expenditure to restore a pressure difference when the condenser unit 76a is switched on again can be avoided.

The refrigeration circuit 48a has, for example, at least one and advantageously precisely one backflow prevention unit 102a (cf. 8th ). The backflow prevention unit 102a advantageously has at least one backflow prevention element 104a. The backflow prevention unit 102a is advantageously provided, advantageously by means of the backflow prevention element 104a, in order to avoid a backflow of refrigerant in at least one refrigerant path in which the backflow prevention unit 102a is at least partially connected. The backflow prevention element 104a is advantageously connected downstream of the evaporator 22a embodied as a shock refrigeration compartment evaporator 30a and, for example, the fourth evaporator 28a embodied as a further shock refrigeration compartment evaporator 30a.

With the backflow prevention unit 102a, in a TWIN mode, in which the refrigeration compartment 14a and the third refrigeration compartment 18a are advantageously operated individually and advantageously alternately in time, in the case of operation of the third refrigeration compartment 18a, refrigerant can flow back into the refrigerant path in which the is arranged as a shock refrigeration compartment evaporator evaporator 22a, can be avoided. In this way, a collection of refrigerant at the evaporator 22a can advantageously be avoided.

The refrigeration circuit 72a advantageously has the parallel connection of evaporators 22a, 26a, 28a. The parallel connection of evaporators 22a, 26a, 28a has, for example, a first parallel branch 118a and a second parallel branch 120a.

The series connection of evaporators 22a, 28a is advantageously connected in the first parallel branch 118a, in which, for example, the evaporator 22a and the fourth evaporator 28a are connected one after the other in the fluid flow direction 54a. In the first parallel branch 118a, advantageously connected upstream of the series connection of evaporators 22a, 28a, the flow rate setting element 58a and, for example, additionally the flow rate blocking element 84a, which is advantageously connected upstream of the flow rate setting element 58a. For example, the backflow prevention element 104a could be connected in the first parallel branch 118a, which element could for example be connected downstream of the series connection of evaporators 22a, 28a.

The third evaporator 26a is advantageously connected in the second parallel branch 120a. In the second parallel branch 120a, advantageously connected upstream of the third evaporator 26a, the flow rate setting element 58a and, for example, additionally the flow rate blocking element 84a, which is advantageously connected upstream of the flow rate setting element 58a.

The refrigeration circuit 72a advantageously has a first refrigerant path 124a and a second refrigerant path 126a. The first refrigerant path 124a advantageously has the first parallel branch 118a. The second refrigerant path 126a advantageously has the second parallel branch 120a.

In one operating state, the control unit 70a is advantageously provided to ensure continuous operation of the second refrigeration compartment 16a and / or the third refrigeration compartment 18a, with simultaneous operation of the refrigeration compartment 14a at least in sections. For example, the control unit 70a could operate the cold compartments 14a, 16a, 18a at least in sections in continuous operation and / or at least in sections in intermittent operation. In an operating state, the control unit 70a advantageously ensures at least essentially constant compartment temperatures in cold compartments 14a, 16a, 18a in which constant storage conditions are provided. In an operating state, the control unit 70a particularly advantageously ensures that compartment functions of the individual refrigeration compartments 14a, 16a, 18a are maintained, advantageously within a process time.

In an operating state, the control unit 70a controls and / or regulates, for example, at least one and advantageously each of the cold compartments 14a, 16a, 18a. The control unit 70a is advantageously provided for controlling and / or regulating a compartment temperature of at least one and advantageously each of the cold compartments 14a, 16a, 18a. In order to control and / or regulate a compartment temperature, the control unit 70a controls at least one and advantageously each of the cold compartments 14a, 16a, 18a Flow adjustment unit 56a and / or the flap unit 64a and / or the cooling fan unit 88a and / or the compressor unit 74a.

For example, in addition to the flow setting unit 56a and / or the flap unit 64a and / or the cooling fan unit 88a, the control unit 70a controls at least one of the and advantageously each of the cooling compartments 14a, 16a, 18a additionally the heating unit for the control and / or regulation of a compartment temperature 68a.

The control unit 70 controls and / or regulates a needs-based supply of the individual cold compartments 14a, 16a, 18a, advantageously by setting at least one cross-sectional area of the cold duct 62a of the duct unit 60a, advantageously by setting a position of the flap element 66a. The control unit 70a advantageously controls and / or regulates a needs-based supply of the individual cold compartments 14a, 16a, 18a by setting at least one opening duration of the flap element 66a. The control unit 70a controls and / or regulates a needs-based supply of the individual cold compartments 14a, 16a, 18a, advantageously by setting at least one speed of at least one fan, which is assigned to at least one evaporator 22a, 26a, 28a, and particularly advantageously by setting at least one speed of the Fan, which is assigned to the evaporator 22a designed as a shock cooling compartment evaporator 30a. The control unit 70a advantageously controls and / or regulates a needs-based supply of the individual cold compartments 14a, 16a, 18a by setting at least one evaporator temperature of at least one evaporator 22a, 26a, 28a and / or the associated cooling capacity. This demand-based supply could be made possible, for example, by controlling the flow rate setting unit 56a and / or compressor unit 74a.

For example, if at least one shock cooling process is started, the control unit 70a could operate exclusively evaporators 22a, 28a assigned to the refrigeration compartment 14a for at least a period of time and, for example, deactivate further evaporators 26a. The time span could be a maximum of 30 minutes, for example. Following the period of time, the control unit 70a could, for example, operate the cold compartments 14a, 16a, 18a in intermittent operation and / or in continuous operation in order to advantageously ensure compartment functions of the corresponding cold compartments 14a, 16a, 18a.

In a refrigeration process, the control unit 70a advantageously sets the evaporator temperatures of the evaporators 22a, 26a, 28a as high as possible and advantageously at least substantially completely evaporates the refrigerant flowing through the evaporators 22a, 26a, 28a by setting the evaporator temperatures. When the evaporator temperatures are set, the control unit 70a particularly advantageously avoids evaporator temperatures that are too high and thus, for example, unnecessary cooling of the refrigerant.

For example, in a shock cooling process, the control unit 70a achieves a maximum cooling capacity by means of the highest possible evaporator temperatures. For example, in a storage process, such as in a cooling process and / or in a freezing process, the control unit 70a achieves minimal energy consumption by means of the highest possible evaporator temperatures and thus advantageously an optimal energy efficiency class, advantageously of the household refrigerator 12a.

By means of the temperature sensor 82a, which is connected downstream of the evaporator 22a and advantageously the fourth evaporator 28a, it can advantageously be checked, for example by the control unit 70a and / or automatically, whether all of the refrigerant passing through the evaporators 22a, 28a has evaporated. For example, in the case of a temperature-controlled expansion valve, a signal from the temperature sensor 82a can be transferred directly to an adjustment of a position of the flow rate setting element 58a, for example by the control unit 70a and / or automatically. As an alternative or in addition, the control unit 70a can, for example, compare a signal from the temperature sensor 82a with at least one reference value, for example a temperature before passing through the evaporator 22a, 28a and / or at the beginning of the refrigerant path, and, depending on the comparison, an electric motor-controlled expansion valve and adjust its position so that the refrigerant is overheated after flowing through the evaporator 22a, 28a.

The following statements are advantageously not restricted to this exemplary embodiment, but rather apply advantageously to every exemplary embodiment to which the respective design can be applied and / or for which the respective design is useful.

The flow setting unit 56a could, for example, be an alternative to the flow setting element 58a, which is advantageously designed as an expansion valve and which is advantageously connected in a cold path with the shock refrigeration compartment evaporator 30a and which is advantageously in the fluid flow direction 54a is connected between the compressor unit 74a and the shock refrigeration compartment evaporator 30a and which is advantageously arranged at a start of the refrigerant path facing the compressor unit 74a, have at least one throttle and advantageously at least two throttles. The flow setting unit 56a could, for example, have at least one switching unit which, for example, could have at least one switchover valve and which, for example, could be assigned to the throttle, advantageously to the throttles. The control unit 70a could, for example, control one of the throttles or both throttles or neither of the throttles by means of the switching unit.

For example, a first of the throttles could be provided for at least one shock cooling process and advantageously for high cooling capacities at low evaporator temperatures. For example, a second of the throttles could be provided for at least one storage process and advantageously for energy-efficient operation.

The flow setting unit 56a could, for example, be an alternative to the flow setting element 58a, which is advantageously designed as an expansion valve and which is advantageously connected in a cold path with at least one evaporator 22a, 26a, 28a different from the shock refrigeration compartment evaporator 30a and which is advantageously connected in the fluid flow direction 54a between the compressor unit 74a and / or the condenser unit 76a and the corresponding evaporator 22a, 26a, 28a is connected and which is advantageously arranged at a start of the refrigerant path facing the compressor unit 74a, have at least one throttle. This throttle could, for example, be optimized for a refrigerant flow required and / or provided for a storage process.

By designing the flow adjustment element 58a as an expansion valve, advantageously compared to a throttle, a necessary and / or corresponding cooling capacity for a corresponding refrigeration compartment 14a, 16a, 18a can advantageously be optimally adapted to a particular operating state and / or refrigeration process, which advantageously makes a simple one Control and / or regulation can be made possible for the corresponding operating state and / or refrigeration process.

In 10 to 28 further embodiments of the invention are shown. The following descriptions are essentially limited to the differences between the exemplary embodiments, with reference to the description of the exemplary embodiment in relation to components, features and functions that remain the same 1 to 9 can be referenced. To distinguish the exemplary embodiments, the letter a is in the reference numerals of the exemplary embodiment in FIG 1 to 9 by the letters b to t in the reference numerals of the exemplary embodiments of 10 to 28 replaced. With regard to components with the same designation, in particular with regard to components with the same reference numbers, the drawings and / or the description of the exemplary embodiment of FIG 1 to 9 to get expelled.

In the following figures relating to the following exemplary embodiments, the combination of flow rate setting element 58a and temperature sensor 82a has been replaced by a single symbol in which an M shown in a circle has been added to the symbol for flow rate setting element 58a.

In addition, in the following figures for the following exemplary embodiments, an in 8th The illustrated schematic representation of a cooling fan unit 88a and a cooling duct unit 60a and a flap unit 64a are omitted for the sake of clarity.

10 shows an alternative refrigeration cycle 48b. The refrigeration circuit 48b advantageously has an evaporator unit 52b, which advantageously has a total of at least four evaporators 22b, 24b, 26b, 28b.

Advantageously, the evaporator unit 52b has at least one evaporator 22b, which is advantageously assigned to a refrigeration compartment 14b configured as a shock refrigeration compartment and which is advantageously configured as a shock refrigeration compartment evaporator 30b. The evaporator unit 52b advantageously has at least one second evaporator 24b, which is advantageously assigned to a second cold compartment 16b configured as a freezer compartment and which is advantageously configured as a freezer compartment evaporator 32b.

The evaporator unit 52b advantageously has at least one third evaporator 26b, which is advantageously assigned to a third cold compartment 18b configured as a refrigerated compartment and which is advantageously configured as a refrigerated compartment evaporator 34b. The evaporator unit 52b advantageously has at least one fourth evaporator 28b, which is advantageously assigned to the cold compartment 14b configured as a shock refrigeration compartment and which is advantageously configured as a further shock refrigeration compartment evaporator 36b.

At least two of the evaporators 22b, 28b are advantageously connected in series. In the present exemplary embodiment, two evaporators 22b, 28b are advantageously connected in series. The evaporator 22b and the fourth evaporator 28b, advantageously the shock refrigeration evaporator 30b and the further shock refrigeration evaporator 36b, are advantageously connected in series. The evaporator 22b is advantageously connected downstream of the fourth evaporator 28b.

At least two of the evaporators 22b, 24b, 26b, 28b are advantageously connected in parallel to one another. In the present exemplary embodiment, four evaporators 22b, 24b, 26b, 28b are advantageously arranged in a parallel circuit, which advantageously has three parallel branches. The series connection of evaporators 22b, 28b and the second evaporator 24b and the third evaporator 26b are each connected in parallel to one another.

The cooling circuit 48b advantageously has at least one capillary unit 94b, which advantageously has at least one capillary element 110b. The capillary element 110b is advantageously connected in the fluid flow direction 54b between the fourth evaporator 28b and the evaporator 22b. The capillary element 110b advantageously has at least one throttle and / or at least one capillary tube.

The capillary element 110b could, for example, be dimensioned so that the evaporator 28b upstream of the capillary element 110b, such as the fourth evaporator 28b, could be slightly warmer than the evaporator 22b downstream of the capillary element 110b, such as the evaporator 22b. In this way, it could be achieved, for example, that air humidity in the refrigeration compartment 14b, to which the evaporators 22b, 28b are assigned, is reflected on the evaporator 22b, which is connected downstream of the capillary element 110b, which in the present exemplary embodiment advantageously prevents condensation on the bottom of the refrigeration compartment 14b can be. Complete defrosting can advantageously be made possible by defrosting the evaporator 22b, which is connected downstream of the capillary element 110b.

Advantageously, the capillary element 110b can optionally deliver a high cooling capacity, for example in the case of a shock cooling process, or a low cooling capacity, for example in the case of a storage process. For example, in addition to the series connection of evaporators 22b, 28b, the downstream second evaporator 24b could be cooled, specifically advantageously in the case of the shock cooling process.

In each case in the fluid flow direction 54b at one end of a parallel branch in which the evaporator 22b and / or the second evaporator 24b is arranged, a backflow prevention element 104b is advantageously connected downstream of the corresponding evaporator 22b, 24b. The household refrigerator device 10b advantageously has at least one and for example at least the backflow prevention element 104b.

The backflow prevention element 104b advantageously prevents an accumulation of refrigerant in at least one evaporator 22b, 24b, specifically for example in the case of operation of at least one warmer cold compartment 18b. In the present exemplary embodiment, the warmer cold compartment 18b is designed as the third cold compartment 18b. In the case of operation of the warmer cold compartment 18b, for example, refrigerant could collect in that of the evaporators 22b, 24b which has a lower and advantageously lowest evaporator temperature, so that, for example, an amount of refrigerant that is available for cooling the warmer cold compartment 18b is not available could be sufficient. For example, as an alternative to at least one of and advantageously to each of the backflow prevention elements 104b, a control unit 70b could, for example, operate the evaporators 22b, 24b, 26b, 28b assigned to the cold compartments 14b, 16b, 18b at evaporator temperatures that are lower than a corresponding compartment temperature.

In each case in the fluid flow direction 54b at the beginning of a parallel branch, there is advantageously in each case a flow adjustment element 58b, which is advantageously designed as an expansion valve. With regard to a function of the flow rate setting element 58b and / or to setting the highest possible evaporator temperatures, reference is made to corresponding statements in connection with the exemplary embodiment in FIG 9 referenced.

The refrigeration circuit 48b advantageously has the parallel connection of evaporators 22b, 24b, 26b, 28b. The parallel connection of evaporators 22b, 24b, 26b, 28b has, for example, a first parallel branch 118b and a second parallel branch 120b and a third parallel branch 122b.

The third evaporator 26b is advantageously connected in the first parallel branch 118b. In the first parallel branch 118b, advantageously upstream of the third evaporator 26b, the Flow setting element 58b and, for example, additionally the flow blocking element 84b, which is advantageously connected upstream of the flow setting element 58b.

The series circuit of evaporators 22b, 28b is advantageously connected in the second parallel branch 120b, in which, for example, the fourth evaporator 28b and the evaporator 22b are connected one after the other in the fluid flow direction 54b. In the second parallel branch 120b, advantageously connected upstream of the series connection of evaporators 22b, 28b, the flow setting element 58b and, for example, additionally the flow blocking element 84b, which is advantageously connected upstream of the flow setting element 58b. For example, the backflow prevention element 104b could be connected in the second parallel branch 120b, which element could for example be connected downstream of the series connection of evaporators 22b, 28b. In the second parallel branch 120b, the capillary element 110b, for example, is advantageously connected in the fluid flow direction 54b between the fourth evaporator 28b and the evaporator 22b.

The second evaporator 24b is advantageously connected in the third parallel branch 122b. In the third parallel branch 122b, advantageously upstream of the second evaporator 24b, the flow rate setting element 58b and, for example, additionally the flow rate blocking element 84b, which is advantageously connected upstream of the flow rate setting element 58b. For example, the backflow prevention element 104b could be connected in the third parallel branch 122b, which element could for example be connected downstream of the second evaporator 22b.

The refrigeration circuit 48b advantageously has a first refrigerant path 124b and a second refrigerant path 126b and a third refrigerant path 128b. The first refrigerant path 124b advantageously has the first parallel branch 118b. The second refrigerant path 126b advantageously has the second parallel branch 120b. The third refrigerant path 128b advantageously has the third parallel branch 122b.

11 shows an alternative refrigeration circuit 48c, which advantageously has an evaporator unit 52c, which advantageously has a total of at least four evaporators 22c, 24c, 26c, 28c. At least two of the evaporators 22c, 26c, 28c are advantageously connected in parallel to one another and at least one of the evaporators 24c is advantageously connected in series with the parallel connection of evaporators 22c, 28c. The series-connected evaporator 24c is particularly advantageously connected downstream of the parallel connection of evaporators 22c, 26c, 28c in the fluid flow direction 54c.

The refrigeration circuit 48c advantageously has the parallel connection of evaporators 22c, 26c, 28c. The parallel connection of evaporators 22c, 26c, 28c has, for example, a first parallel branch 118c and a second parallel branch 120c.

The third evaporator 26c is advantageously connected in the first parallel branch 118c. In the first parallel branch 118c, advantageously connected upstream of the third evaporator 26c, a flow setting element 58c and, for example, additionally a flow blocking element 84c, which is advantageously connected upstream of the flow setting element 58c. For example, a further flow setting element 130c could additionally be connected in the first parallel branch 118c, which could advantageously be connected downstream of the third evaporator 26c.

The series circuit of evaporators 22c, 28c is advantageously connected in the second parallel branch 120c, in which, for example, the fourth evaporator 28c and the evaporator 22c are connected one after the other in the fluid flow direction 54c. In the second parallel branch 120c, advantageously connected upstream of the series connection of evaporators 22c, 28c, the flow setting element 58c and, for example, additionally the flow blocking element 84c, which is advantageously connected upstream of the flow setting element 58c. For example, a backflow prevention element 104c could be connected in the second parallel branch 120c, which element could for example be connected downstream of the series connection of evaporators 22c, 28c. In the second parallel branch 120c, a capillary element 110c, for example, is advantageously connected in the fluid flow direction 54c between the fourth evaporator 28c and the evaporator 22c.

The second evaporator 24c is advantageously connected downstream of the parallel connection of evaporators 22c, 28c.

For example, a control unit 70c could set a total cooling output in a series connection of the third evaporator 26c and the second evaporator 24c by means of the flow adjusting element 58c arranged for example the first parallel branch 118c. The control unit 70c could for example, by means of the further flow adjustment element 130c arranged in the first parallel branch 118c, distribute the entire cooling power to the evaporators 24c, 26c. For example, the control unit 70c could, by means of the further flow adjusting element 130c arranged in the first parallel branch 118c, supply a remaining cooling capacity, which remains, for example, after passing through the third evaporator 26c, to the second evaporator 24c. The control unit 70c could, for example, by increasing or lowering an evaporator temperature of the third evaporator 26c, distribute the entire cooling power to the evaporators 24c, 26c, whereby more or less cooling power could be output in the third evaporator 26c, for example.

The refrigeration circuit 48c advantageously has a first refrigerant path 124c and a second refrigerant path 126c. The first refrigerant path 124c advantageously has the first parallel branch 118c and the second evaporator 124c. The second refrigerant path 126c advantageously has the second parallel branch 120c and the second evaporator 124c.

In one operating state, the evaporator 24c, which is connected downstream of the parallel connection of evaporators 22c, 26c, 28c, for example by the control unit 70c, is advantageously always operated as soon as at least one of the evaporators 22c, 26c, 28c of the parallel connection is operated on evaporators 22c, 26c, 28c is.

12 shows an alternative refrigeration cycle 48d which differs from that in FIG 11 refrigerant circuit 48c illustrated by a refrigerant branch 112d. The refrigeration circuit 48d advantageously has at least one refrigerant branch 112d, which is advantageously connected in parallel to a parallel connection of evaporators 22d, 26d, 28d.

The refrigeration circuit 48d advantageously has a first node 114d and a second node 116d, at which the refrigerant branch 112d and the parallel circuit of evaporators 22d, 26d, 28d advantageously merge in parallel. The first node 114d is arranged, for example, in the fluid flow direction 54d in front of the refrigerant branch 112d and the parallel connection of evaporators 22d, 26d, 28d. For example, the second node 116d is connected downstream of the refrigerant branch 112d and the parallel connection of evaporators 22d, 26d, 28d in the fluid flow direction 54d.

A second evaporator 24d, which is advantageously designed as a freezer compartment evaporator 32d and which is advantageously connected downstream of the parallel connection of evaporators 22d, 26d, 28d, is advantageously connected downstream of the second node 116d.

Advantageously, analogous to each of the parallel branches of the parallel connection to evaporators 22d, 26d, 28d, a flow setting element 58d, which is designed as an expansion valve, for example, and a flow blocking element 84d, which is designed as a stop valve, for example, are arranged in the refrigerant branch 112d.

The refrigeration circuit 48d advantageously has a first refrigerant path 124d and a second refrigerant path 126d and a third refrigerant path 128d. The first refrigerant path 124d advantageously has the first parallel branch 118d and the second evaporator 24d. The second refrigerant path 126d advantageously has the second parallel branch 120d and the second evaporator 124d. The third refrigerant path 128d advantageously has the refrigerant branch 112d and the second evaporator 24d.

The flow rate setting element 58d, which is connected upstream of the third evaporator 26d, enables, for example, the third evaporator 26d to be switched off and / or deactivated, for example by the control unit 70d, during a shock cooling process. For example, as an alternative, the third evaporator 26d can be operated at least in sections simultaneously with the evaporator 22d and / or with the fourth evaporator 28d by means of the flow setting element 58d, which is connected upstream of the third evaporator 26d, for example with a cooling capacity that in the best case allows permanent cooling of the third cold compartment 18d, with which the shock cooling process does not have to be interrupted, for example, for cooling the third cold compartment 18d.

The flow setting element 58d, which is connected upstream of the second evaporator 24d and which is connected, for example, in the refrigerant branch 112d, enables, for example, that during a shock cooling process, the second refrigeration compartment 16d can be cooled at least in sections at the same time as the refrigeration compartment 14d, for example in the event that a Compartment temperature in the cold compartment 14d and / or an evaporator temperature of the evaporator 22d is still high. For example, at a compartment temperature in the cold compartment 14d and / or at a high evaporator temperature of the evaporator 22d, the entire refrigerant could evaporate in the evaporator 22d and the second cold compartment 16d could, for example, remain uncooled. In this case, for example, by means of the flow setting element 58d, which is connected upstream of the second evaporator 24d and which is connected, for example, in the refrigerant branch 112d, the second refrigeration compartment 16d can be cooled at least in sections at the same time as the refrigeration compartment 14d, for example with a cooling capacity that is equal to In the best case, it enables permanent cooling of the second cold compartment 16d, with which, for example, the shock cooling process does not have to be interrupted for cooling the second cold compartment 16d.

For example, by means of the flow adjustment element 58d, which is connected upstream of the second evaporator 24d and which is connected, for example, in the refrigerant branch 112d, a remaining cooling capacity for the second refrigeration compartment 16d can be set, for example by the control unit 70d.

13th shows an alternative refrigeration circuit 48e, which advantageously has an evaporator unit 52e, which advantageously has a total of at least four evaporators 22e, 24e, 26e, 28e. At least two of the evaporators 22e, 24e, 26e, 28e are advantageously connected in series and at least one of the evaporators 22e, 24e, 26e, 28e is advantageously connected in parallel to the series connection of evaporators 22e, 24e, 26e, 28e. In the present exemplary embodiment, two of the evaporators 22e, 24e, 26e, 28e are advantageously connected in series. The series connections of evaporators 22e, 24e, 26e, 28e are advantageously connected in parallel to one another.

The refrigeration circuit 48e advantageously has the parallel connection of evaporators 22e, 24e, 26e, 28e. The parallel connection of evaporators 22e, 24e, 26e, 28e has, for example, a first parallel branch 118e and a second parallel branch 120e.

A first series circuit of evaporators 24e, 26e is advantageously connected in the first parallel branch 118e. In the first series connection of evaporators 24e, 26e, a third evaporator 26e and a second evaporator 24e are advantageously connected in the fluid flow direction 54e. In the first parallel branch 118e, advantageously connected upstream of the first series connection of evaporators 24e, 26e, advantageously a flow adjustment element 58e and, for example, additionally a flow blocking element 84e, which is advantageously connected upstream of the flow adjustment element 58e. For example, a backflow prevention element 104e could additionally be connected in the first parallel branch 118e, which element could advantageously be connected downstream of the first series connection of evaporators 24e, 26e. In the first parallel branch 118e, a further flow adjustment element 130e, for example, could advantageously be connected in the fluid flow direction 54e between the third evaporator 26e and the second evaporator 24e.

A second series circuit of evaporators 22e, 28e is advantageously connected in the second parallel branch 120e. In the second series connection of evaporators 22e, 28e, a fourth evaporator 28e and an evaporator 22e are advantageously connected in the fluid flow direction 54e. In the second parallel branch 120e, advantageously connected upstream of the second series connection of evaporators 22e, 28e, advantageously a flow setting element 58e and, for example, additionally a flow blocking element 84e, which is advantageously connected upstream of the flow setting element 58e. For example, a backflow prevention element 104e could additionally be connected in the second parallel branch 120e, which element could advantageously be connected downstream of the second series connection of evaporators 22e, 28e. In the second parallel branch 120e, a capillary element 110e, for example, could advantageously be connected in the fluid flow direction 54e between the fourth evaporator 28e and the evaporator 22e.

The refrigeration circuit 48e advantageously has a first refrigerant path 124e and a second refrigerant path 126e. The first refrigerant path 124e advantageously has the first parallel branch 118e. The second refrigerant path 126e advantageously has the second parallel branch 120e.

The flow rate setting unit 56a advantageously has, for example in addition to the flow rate setting element 58e, at least one further flow rate setting element 130e, for example at least the further flow rate setting element 130e. For example, the further flow rate setting element 130e could be arranged between at least two evaporators 24e, 26e connected in series. The flow rate setting element 58e could, for example, be connected upstream of the series connection of evaporators 24e, 26e. The flow rate setting element 58e could advantageously be provided for setting an overall refrigeration capacity of the series connection of evaporators 24e, 26e, specifically, for example, as a function of activation by the control unit 70e. The further flow adjustment element 130e could, for example, be closed a distribution of the total cooling capacity to the respective evaporators 24e, 26e of the series connection of evaporators 24e, 26e can be provided, specifically for example as a function of activation by the control unit 70e.

A control unit 70e could, for example, by means of the further flow setting element 130e connected to the first parallel branch 118e, distribute and / or set a cooling capacity between the evaporator 26e, which is connected upstream of the further flow setting element 130e, and the evaporator 24e, which is connected downstream of the further flow setting element 130e. For example, the control unit 70e could set a compartment temperature of a refrigeration compartment 18e to which the evaporator 26e is assigned, which is connected upstream of the further flow rate setting element 130e.

The control unit 70e could, for example, in the case of a small difference between a compartment temperature of the refrigeration compartment 18e, to which the evaporator 26e is assigned, which is connected upstream of the further flow adjustment element 130e, and an evaporator temperature of the evaporator 26e assigned to the refrigeration compartment 18e, a low refrigeration output to the refrigeration compartment 18e and Instead, it is advantageous to transfer a high refrigeration output to the refrigeration compartment 16e, to which the evaporator 24e is assigned, which is connected downstream of the further flow adjustment element 130e.

For example, in the case of a high difference between a compartment temperature of the refrigeration compartment 18e, the control unit 70e could be which is the evaporator 26th is assigned, which is connected upstream of the further flow adjustment element 130e, and an evaporator temperature of the evaporator 26e assigned to the refrigeration compartment 18e, a high cooling capacity to the refrigeration compartment 18e and advantageously instead a low refrigeration capacity is transmitted to the refrigeration compartment 16e, to which the evaporator 24e is assigned, which is assigned to the other Flow adjustment element 130e is connected downstream.

In the present exemplary embodiment, this could be described in the specific case, for example, as follows: a distribution of refrigeration capacity between the third refrigeration compartment 18e and the second refrigeration compartment 16e could, for example, by means of the further flow adjustment element 130e, which is connected in the fluid flow direction between the third evaporator 26e and the second evaporator 24e, will be realized. An evaporator temperature of the third evaporator 26e could, for example, be set by means of this further flow adjustment element 130e. For example, if a temperature difference between a compartment temperature of the third refrigeration compartment 18e and an evaporator temperature of the third evaporator 26e is low, for example, only a small amount of refrigeration capacity of the first parallel branch 118e could be used in the third refrigeration compartment 18e and thus mainly the second refrigeration compartment 16e could be cooled will. On the other hand, if there is a large temperature difference between a compartment temperature of the third refrigeration compartment 18e and an evaporator temperature of the third evaporator 26e, for example, a large part of the refrigeration capacity of the first parallel branch 118e could be used in the third refrigeration compartment 18e and thus mainly the third refrigeration compartment 18e could be cooled will.

By means of the flow setting element 58e, which is connected upstream of the series circuit of evaporators 22e, 28e, a very high cooling capacity, for example in the case of a shock cooling process, and a low cooling capacity, for example in the case of a storage process, could optionally be set, for example by the control unit 70e.

For example, in the case of a storage process and / or warm use cases, the evaporator 22e could, for example, be completely switched off via the flow adjustment element 58e, for example in connection with the flow blocking element 84e, for example if the flow adjustment element 58e is not completely tight when closed. The cold compartment 14e and the second cold compartment 16e could, for example, be operated independently in the event that the evaporator 22e is switched off. A warm use case could, for example, include temperature control of refrigerated goods and / or thawing of refrigerated goods and / or bringing them up to the consumption temperature

Advantageously, an evaporator temperature of at least one evaporator 22e, 28e assigned to the refrigeration compartment 14e could be increased as required in the case of a shock cooling process, for example shock cooling, independently of the two other refrigeration compartments 16e, 18e if these are not cooled. Particularly in the case of the shock cooling process, for example shock cooling, an increased evaporator temperature could, for example, result in a higher cooling capacity, as a result of which, for example, a larger amount of items to be cooled and / or food could be cooled. The higher cooling capacity could result, for example, from a resulting higher suction pressure on a compressor unit 74e.

For example, in combination with at least one temperature sensor which could detect overheating downstream of the evaporator 22e, an evaporator temperature and thus, for example, a cooling capacity could be increased until the overheating becomes too low.

By means of the flow adjusting element 58e, which is connected upstream of the third evaporator 26e, for example in connection with the flow blocking element 84e, if the flow adjusting element 58e is not completely tight in the closed state, the first parallel branch 118e, in which for example the third evaporator 26e and the second Evaporator 24e could be switched to be completely closed.

14th shows an alternative refrigeration cycle 48f which differs from that in FIG 13th The refrigeration circuit 48e illustrated, for example, differs in that a first parallel branch 118f is free of further flow adjustment elements 58e. In the first parallel branch 118f, contrary to FIG 13th refrigeration circuit 48e shown, advantageously in a first series connection of evaporators 24f, 26f, a second evaporator 24f connected in the fluid flow direction 54f upstream of a third evaporator 26f. For a detailed description of the refrigeration circuit 48f according to FIG 14th reference is made to the description accompanying the in 13th refrigeration circuit 48e shown was cited.

In the present exemplary embodiment, a refrigeration power distribution between the third refrigeration compartment 18f and the second refrigeration compartment 16f could be set for example by means of an evaporator temperature of the second evaporator 24f. This evaporator temperature could be set, for example, by means of a compressor unit 74f. In this way, on the one hand, if a temperature difference between a compartment temperature of the second refrigeration compartment 16f and an evaporator temperature of the second evaporator 24f is low, for example, only a small amount of refrigeration capacity of the first parallel branch 118f could be used in the second refrigeration compartment 16e and thus mainly the third refrigeration compartment 18f would be cooled will. On the other hand, if there is a large temperature difference between a compartment temperature of the second refrigeration compartment 16f and an evaporator temperature of the second evaporator 24f, for example, a large part of the refrigeration capacity of the first parallel branch 118f could be used in the second refrigeration compartment 16f and thus mainly the second refrigeration compartment 16f could be cooled will. A distribution of a cooling capacity could be achieved, for example, in the case in which, for example by the control unit 70f, a fan assigned to the second evaporator 24f is switched off. A refrigeration output provided by the second evaporator 24f could, for example, in particular if an evaporator temperature of the second evaporator 24f is significantly lower than an associated compartment temperature of the second refrigeration compartment 16f, no longer or only slightly used in the second refrigeration compartment 16f and, in particular, that could third cold compartment 18f are cooled.

Advantageous compared to the in 13th In the present exemplary embodiment, the refrigeration compartment 14f can advantageously be implemented more cost-effectively by dispensing with a further flow setting element 130e and particularly advantageously by skillfully using the speed-regulated compressor of the compressor unit 74f.

The first parallel branch 118f could, for example, have the series connection of the second evaporator 24f and the third evaporator 26f. For example, the series connection of evaporators 24f, 26f could be preceded by a flow adjustment element 58f, which, for example, could additionally be preceded by a flow blocking element 84f. If, for example, the refrigerant evaporates completely in the second evaporator 24f, the third cold compartment 18f could only be cooled slightly by cold refrigerant, which could be gaseous. For example, in the case of a position of the flow adjustment element 58f which results in a greater flow through the refrigerant guide unit 72a, and / or in the case when an evaporator temperature of the second evaporator 24f is only slightly lower than a compartment temperature of the second refrigeration compartment 16f, the second evaporator could 24f, for example, overflow and refrigerant could, for example, now also evaporate in the third evaporator 26f, as a result of which, for example, the third refrigeration compartment 18f could be more strongly cooled. For the second evaporator 24f and / or for the third evaporator 26f, for example, any designs could be selected. For example, the third evaporator 26f could be designed as a plate tube evaporator and the second evaporator 24f as a lamellar evaporator. For example, the household refrigerator device 10f could have at least one fan, which could advantageously be assigned to the second evaporator 24f and whose speed could also be used, for example, to set and / or influence a cooling power distribution between the third refrigeration compartment 18f and the second refrigeration compartment 16f. For example, when the fan is switched off, it could, for example, independently of an evaporator temperature of the second evaporator 24f, only a small part of the refrigerant evaporate in the second evaporator 24f and a large part of the refrigerant in the third evaporator 26f.

A second parallel branch 120f could, for example, have at least one flow adjustment element 58f, which could be provided, for example as a function of activation by a control unit 70f, for controlling a refrigerant inflow and at least one evaporator 22f, 28f assigned to the refrigeration compartment 14f. The evaporator 22f assigned to the refrigeration compartment 14f could, for example, be designed as a, for example, comparatively large, lamellar evaporator in order, for example, to ensure the best possible heat transfer. A required bandwidth of an air flow could be achieved, for example, by at least one speed-regulated fan which, for example, could be part of the household refrigerator device 10f and could be assigned to the evaporator 22f. In the case of a shock cooling process, for example, a high volume flow could be required which, for example, could result in an increased noise level that could be acceptable due to the temporal limitation of the shock cooling process. In a storage process, for example, a lower air flow could be required due to a lower cooling capacity, which could enable quieter operation. Cold ducts 62f, which are fluidically connected to the cold compartment 14f, have larger cross-sections compared to known solutions in order, for example, to avoid unnecessary pressure losses and thus additional energy consumption and increased noise development.

A backflow prevention element 104f arranged in the fluid flow direction 54f at the end of the first parallel branch 118f could, for example, enable evaporator temperatures above a compartment temperature of the second refrigeration compartment 24f and thus, for example, greater cooling capacities at the start of a shock cooling process. Towards the end of the shock cooling process, evaporator temperatures could, for example, be significantly below the compartment temperature of the second refrigeration compartment 24f, for example in the range from approximately -30 ° C. to -40 ° C. For example, in order to make an intermediate cooling of the second refrigeration compartment 16f and the third refrigeration compartment 18f as efficient as possible and thus, for example, to return to the shock cooling process as quickly as possible, a backflow prevention element 104f could also be arranged at one end of the second parallel branch 120f, for example, whereby an evaporator temperature compared to the Evaporator 22f could be increased.

Due to high cooling capacities, for example in a shock cooling process, a condenser unit 76f could for example have at least one ventilated condenser in order to avoid, for example, an excessively high condensing temperature and thus a decrease in the cooling capacity and / or a departure from the permissible operating range. At the beginning of the shock cooling process, for example, the highest cooling capacities could be achieved due to high evaporator temperatures. In order to limit a liquefaction temperature, for example, the household refrigerator device 10f could for example have at least one additional heat capacity and / or at least one latent heat storage device, which could for example be attached to the liquefier unit 76f. Due to a different cooling requirement, the compressor unit 74f could, for example, have at least one speed-regulated compressor.

15th shows an alternative refrigeration cycle 48g, which differs from that in 14th The refrigeration circuit 48f shown here differs, for example, in that a second parallel branch 120g is free of fourth evaporators 26f and / or capillary elements 110f. With regard to a detailed description of the refrigeration circuit 48g according to FIG 15th reference is made to the description accompanying the in 13th refrigeration circuit 48e shown and / or to the in 14th refrigerant circuit 48f shown was cited.

16 shows an alternative refrigeration cycle 48h, which differs from that in 13th The refrigeration circuit 48e shown, for example, in that a second parallel branch 120h is free of fourth evaporators 26e and / or capillary elements 110e. With regard to a detailed description of the refrigeration circuit 48h according to FIG 16 reference is made to the description accompanying the in 13th refrigeration circuit 48e shown was cited.

17th shows an alternative refrigeration cycle 48i, which differs from that in 12 refrigerant circuit 48d shown, for example, in that a second parallel branch 120i is free from fourth evaporators 26d and / or from capillary elements 110d. With regard to a detailed description of the refrigerant circuit 48i according to FIG 17th reference is made to the description accompanying the in 12 refrigerant circuit 48d shown was cited.

18th shows an alternative refrigeration cycle 48j which differs from that in FIG 11 The refrigeration circuit 48c shown, for example, differs in that a second parallel branch 120j is free of fourth evaporators 26c and / or of capillary elements 110c. For a detailed description of the refrigeration circuit 48j according to FIG 18th reference is made to the description accompanying the in 11 refrigerant circuit 48c shown was cited.

19th shows an alternative refrigeration circuit 48k, which advantageously has an evaporator unit 52k, which advantageously has a total of three evaporators 22k, 26k, 28k. At least two and advantageously exactly two of the evaporators 22k, 26k are advantageously connected in series and at least one of the evaporators 28k is advantageously connected in parallel to the series connection of evaporators 22k, 26k.

The refrigeration circuit 48k advantageously has the parallel connection of evaporators 22k, 26k, 28k. The parallel connection of evaporators 22k, 26k, 28k has, for example, a first parallel branch 118k and a second parallel branch 120k.

The series circuit of evaporators 22k, 26k is advantageously connected in the first parallel branch 118k. In the series connection of evaporators 22k, 26k, a third evaporator 26k and an evaporator 22k are advantageously connected in the fluid flow direction 54k. In the first parallel branch 118k, advantageously upstream of the first series connection of evaporators 22k, 26k, a flow setting element 58k and, for example, additionally a flow blocking element 84k, which is advantageously connected upstream of the flow setting element 58k. In the first parallel branch 118k, a further flow rate setting element 130k, for example, could advantageously be connected in the fluid flow direction 54k between the third evaporator 26k and the evaporator 22k.

A fourth evaporator 28k is advantageously connected in the second parallel branch 120k. In the second parallel branch 120k, advantageously connected upstream of the fourth evaporator 28k, a flow setting element 58k and, for example, additionally a flow blocking element 84k, which is advantageously connected upstream of the flow setting element 58k.

The refrigeration circuit 48k advantageously has a first refrigerant path 124k and a second refrigerant path 126k. The first refrigerant path 124k advantageously has the first parallel branch 118k. The second refrigerant path 126k advantageously has the second parallel branch 120k.

By means of the flow adjustment element 58k, which is connected upstream of the fourth evaporator 28k, an evaporator temperature of the fourth evaporator 28k could, for example, be adjusted so that it is always as high as possible and yet all of the refrigerant evaporates in the fourth evaporator 28k. For example, an operator could choose, for example by means of at least one operator input, whether the fourth evaporator 28k should be operated or not. For example, the operator could selectively switch on or off the fourth evaporator 28k, for example by means of at least one operating input, by means of the flow setting element 58k and, for example, additionally by means of the flow blocking element 84k, which is connected upstream of the flow setting element 58k.

The cooling circuit 48k described in the present exemplary embodiment has the advantage, for example, that in the case of a storage process in which the cold compartment is used for warm use cases, for example, the fourth evaporator 28k by means of the flow setting element 58k, for example in combination with the flow blocking element 84k, if that Flow adjusting element 58k is not tight in the closed state, can be completely put out of operation and thus no longer performs a cooling function, for example. In this way, for example, heating of the fourth evaporator 28k could be dispensed with, by means of which, for example, an undesired cooling capacity at the fourth evaporator 28k could be compensated.

List of reference symbols

10

Household refrigeration appliance device

12

Household refrigeration device

14th

Cold compartment

16

Second cold compartment

18th

Third cold compartment

20th

Height direction

22nd

Evaporator

24

Second evaporator

26th

Third evaporator

28

Fourth evaporator

30th

Shock refrigeration compartment evaporator

32

Freezer evaporator

34

Cooling compartment evaporator

36

Another shock refrigeration compartment evaporator

38

Device body

40

Appliance door

42

Second appliance door

44

Third appliance door

46

Border area

48

Refrigeration cycle

50

Shielding wall

52

Evaporator unit

54

Fluid flow direction

56

Flow adjustment unit

58

Flow adjustment element

60

Cold duct unit

62

Cold duct

64

Flap assembly

66

Flap element

68

Heating unit

70

Control unit

72

Refrigerant guide unit

74

Compressor unit

76

Condensing unit

78

Drying unit

80

Heat exchanger unit

82

Temperature sensor

84

Flow blocking element

86

Another cold duct

88

Cooling fan unit

90

Operator interface

92

Heating element

94

Capillary unit

96

Flap heating element

98

Mounting plate

100

Evaporator tube

102

Backflow prevention unit

104

Backflow prevention element

106

Ordinate axis

108

Abscissa axis

110

Capillary element

112

Refrigerant branch

114

First junction

116

Second junction

118

First parallel branch

120

Second parallel branch

122

Third parallel branch

124

First refrigerant path

126

Second refrigerant path

128

Third refrigerant path

130

Another flow adjustment element

132

Switching unit

Claims (15)

Household refrigeration appliance device with at least one refrigeration compartment (14a-k) and at least one second refrigeration compartment (16a-k), with at least one refrigeration circuit (48a-k), which has at least one evaporator unit (52a-k) with at least three evaporators (22a-k, 24a -k, 26a-k, 28a-k), of which at least two are connected in series, characterized in that at least two of the evaporators (22a-k, 24a-k, 26a-k, 28a-k) are connected in parallel to one another are. Household refrigeration device according to Claim 1 , characterized in that the evaporator unit (52b-g) has a total of at least four evaporators (22b-g, 24b-g, 26b-g, 28b-g). Household refrigeration device according to Claim 1 or 2 , characterized in that at least two of the evaporators (22c-d, 24c-d, 26c-d, 28c-d; 22i-j, 24i-j, 26i-j, 28i-j) are connected in parallel to one another and at least one of the Evaporator (22c-d, 24c-d, 26c-d, 28c-d; 22i-j, 24i-j, 26i-j, 28i-j) in series with the parallel connection of evaporators (22c-d, 24c-d, 26c-d, 28c-d; 22i-j, 24i-j, 26i-j, 28i-j). Household refrigeration device according to Claim 3 , characterized in that the series-connected evaporator (22c-d, 24c-d, 26c-d, 28c-d; 22i-j, 24i-j, 26i-j, 28i-j) of the parallel connection of evaporators (22c- d, 24c-d, 26c-d, 28c-d; 22i-j, 24i-j, 26i-j, 28i-j) is connected downstream in the fluid flow direction (54c-d; 54i-j). Domestic refrigeration appliance device according to one of the preceding claims, characterized in that at least two of the evaporators (22a-i, 24a-i, 26a-i, 28a-i; 22k, 24k, 26k, 28k) are connected in series and at least one of the evaporators ( 22a-i, 24a-i, 26a-i, 28a-i; 22k, 24k, 26k, 28k) parallel to the series connection of evaporators (22a-i, 24a-i, 26a-i, 28a-i; 22k, 24k , 26k, 28k) is switched. Domestic refrigeration appliance device according to one of the preceding claims, characterized in that at least one of the evaporators (22a-k) is designed as a shock refrigeration compartment evaporator (30a-k). Domestic refrigeration appliance device according to one of the preceding claims, characterized in that at least one of the evaporators (24b-j) is designed as a freezer compartment evaporator (32b-k). Domestic refrigeration appliance device according to one of the preceding claims, characterized in that at least one of the evaporators (26a-k) is designed as a refrigerated compartment evaporator (34a-j). Domestic refrigeration appliance device according to one of the preceding claims, characterized by at least one flow setting unit (56a-k) which has at least one flow setting element (58a-k) which is arranged in the refrigeration circuit (48a-k) and which is provided for this purpose by means of the flow setting element (58a-k) to set a flow rate of at least one refrigerant through the refrigeration circuit (48a-k). Domestic refrigeration appliance device according to one of the preceding claims, characterized by at least one cold duct unit (60a-k) which has at least one cold duct (62a-k) which fluidly connects the cold compartments (14a-k, 16a-k, 18a-k) to one another and the is provided for fluid exchange between the cold compartments (14a-k, 16a-k, 18a-k). Household refrigeration device according to Claim 10 , characterized by at least one flap unit (64a-k) which has at least one flap element (66a-k) which is arranged in the cold duct (62a-k) and which is provided as a function of a position of the flap element (66a -k) at least partially blocking and / or releasing the cold duct (62a-k). Domestic refrigeration appliance device according to one of the preceding claims, characterized by at least one heating unit (68-k) which is provided for heating at least one of the refrigeration compartments (14a-k, 16a-k, 18a-k). Household refrigeration appliance device at least according to one of the Claims 9 and 11 , characterized by at least one control unit (70a-k) which, for controlling and / or regulating a compartment temperature, of at least one of the refrigeration compartments (14a-k, 16a-k, 18a-k), the flow rate setting unit (56a-k) and / or the The flap unit (64a-k). Household refrigeration device at least according to the Claims 12 and 13th , characterized in that the control unit (70a-k) also controls the heating unit (68a-k) for controlling and / or regulating the compartment temperature. Domestic refrigeration appliance with at least one domestic refrigeration appliance device (10a-k) according to one of the preceding claims.

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