EP3086059A1 - Domestic refrigerator and method for operating a domestic refrigerator - Google Patents

Abstract

The invention relates to a household refrigerator (1) and a method for operating the household refrigerator (1). The household refrigerating appliance (1) comprises a heat-insulated body (2) which has an inner container (3) with a refrigerated interior space (4) provided for storing food, a refrigeration device provided for cooling the coolable interior space (4) and an auxiliary device (20). , and a relative to the body (2) pivotally mounted, for opening and closing the interior (4) provided door leaf (5) or a drawer, which is pushed in the closed state in the coolable interior (4) to close it, and is at least partially pulled out of the coolable interior (4) in the opened state. The auxiliary device (20) has an air pressure sensor (31, 31a) which is set up to change the air pressure within the inner space (4) as a result of a pressing and / or pulling on the closed door leaf (5) or on the closed drawer. to investigate. The auxiliary device (20) is set up to automatically open the closed door leaf (5) or the closed drawer, at least partially, depending on the determined change in the air pressure.

Description

The invention relates to a household refrigerator with an interior, an auxiliary device for opening a door leaf or a drawer of the household refrigerator, and a refrigeration device, which is provided for cooling the interior. The invention also relates to a method for operating such a household refrigerator.

The DE 10 2006 061 083 A1 discloses a household refrigerator having a thermally insulated body with an inner container. The inner container limits a coolable interior. The household refrigerating appliance comprises a door leaf pivotally mounted relative to the body for opening and closing the interior, and a door opening aid having a control body and an air pressure sensor configured to change the air pressure within the door due to pressing and / or pulling on the closed door leaf Coolable interior to determine, then automatically open by means of the actuating body, the closed door leaf at least partially.

The object of the invention is to provide a household refrigeration appliance with an improved, an air pressure sensor having auxiliary device for assisting opening a closed door leaf or a closed drawer.

The object of the invention is achieved by a household refrigerating appliance, comprising a thermally insulated body which has an inner container with a refrigerated interior intended for storing food, a cooling device provided for cooling the coolable interior and an auxiliary device, and a relative to the body pivotally mounted, for Door opening provided the opening and closing of the coolable interior, wherein the auxiliary device comprises an air pressure sensor which is adapted to determine a resulting due to a pressing and / or pulling on the closed door leaf change in the air pressure within the coolable interior, and the auxiliary device is set up dependent from the determined change in the air pressure automatically open the closed door leaf at least partially, wherein the air pressure sensor coupled to the interior Pressure chamber, an arranged inside the pressure chamber electrical component and an evaluation device which is adapted to evaluate at least one, the change in the air pressure associated electric size of the electrical component, so that the auxiliary device depending on the evaluated electrical variable, the closed door leaf at least partially opens, wherein the electrical component has a sheet-like component and an electrically conductive foil spaced apart from the planar component at a distance. The door leaf is preferably pivotally mounted with respect to an axis which preferably extends vertically.

The domestic refrigerator according to the invention may additionally or alternatively to the door leaf having a drawer, which is pushed in the closed state in the coolable interior to close it, and at least partially pulled out of the coolable interior in the open state. Then, the auxiliary device is arranged to determine a resulting due to a pressing and / or pulling on the closed drawer change in the air pressure within the coolable interior to then at least partially open the closed drawer.

The refrigeration device is preferably a refrigerant circuit. The refrigerant circuit comprises a compressor and in particular a condenser downstream of the compressor, a condenser connected downstream of the condenser and an evaporator which is arranged between the throttle device and the compressor.

On the direction of the cooled interior facing side of the door leaf or the drawer, an elastic magnetic seal is preferably attached, which sealingly bears against the body when the door leaf is closed or when the drawer is closed. The magnetic seal is elastic, so that when pressed on the closed door leaf or on the closed drawer, this or this moves slightly in the direction of the coolable interior, whereby the air pressure changes within the coolable interior. Due to the elastic magnetic seal, when pulling on the closed door leaf or on the closed drawer, the magnetic seal does not immediately detach from the body, which also changes the air pressure within the coolable interior.

This change in the air pressure can be determined by means of the air pressure sensor of the auxiliary device, which can be closed to a desire of a person to want to open the closed door leaf or the closed drawer.

The pressure measuring range of the air pressure sensor is for example at ± 0.2 mbar and the bursting pressure e.g. at ± 50mbar.

The auxiliary device preferably comprises a control body, e.g. a plunger, which automatically rotates e.g. can be moved by means of an actuator, for example, from a retracted to an extended position to at least partially open the closed door leaf or the closed drawer, preferably at least open so far that solves the magnetic seal from the body.

The auxiliary device further comprises the air pressure sensor. This comprises, according to the invention, the pressure chamber coupled to the coolable interior, the electrical component arranged inside the pressure chamber and the evaluation device, which is set up to evaluate at least one electrical variable of the electrical component associated with the change in air pressure, so that the auxiliary device depends on the evaluated electrical variable the closed door leaf or the closed drawer opens at least partially. The pressure chamber is e.g. connected or coupled via an input with the coolable interior, so that the change in the air pressure within the interior transmits to the pressure chamber. As a result, the at least one electrical variable of the component arranged within the pressure chamber changes.

The electrical component comprises a sheet-like component and the electrically spaced apart from the planar component at a distance electrically conductive film. A change in the air pressure causes a force on the electrically conductive film, whereby at least partially the distance between the planar component and the electrically conductive film changes. As a result, the at least one electrical variable of the electrical component also changes. This change is evaluated automatically with the evaluation device, whereby it is possible to detect a pulling or pressing on the closed door leaf or on the closed drawer. The change of the least an electrical quantity is in particular a measure of the

Change of air pressure. Thereafter, the auxiliary device is automatically activated to at least partially open the closed door leaf or the closed drawer. This is e.g. realized by the evaluation device controls the actuator so that it moves the actuator from its retracted to its extended position.

• Ermitteln eines Wertes oder einer Änderung der wenigstens einen elektrischen Größe des elektrischen Bauelements mittels der Auswertevorrichtung, wobei sich die wenigstens eine elektrische Größe aufgrund eines zumindest partiell ändernden Abstands zwischen der elektrisch leitenden Folie und der flächenhaften Komponente bedingt durch eine durch ein Ziehen oder Drücken am geschlossenen Türblatt oder an der geschlossenen Schublade resultierende Änderung des Luftdrucks ändert,
• Auswerten des ermittelten Wertes oder der ermittelten Änderung der wenigstens einen elektrischen Größe mittels der Auswertevorrichtung, und
• abhängig von dem Auswerten, Aktivieren der Hilfsvorrichtung, damit diese das geschlossene Türblatt oder die geschlossene Schublade zumindest teilweise öffnet.

A further aspect of the invention therefore relates to a method for operating the household refrigerating appliance according to the invention, comprising the following method steps:

• Determining a value or a change of the at least one electrical variable of the electrical component by means of the evaluation device, wherein the at least one electrical variable due to an at least partially changing distance between the electrically conductive foil and the planar component due to a by pulling or pressing the closed Door leaf or change in air pressure resulting from the closed drawer,
• Evaluating the determined value or the determined change of the at least one electrical variable by means of the evaluation device, and
• depending on the evaluation, activating the auxiliary device so that it at least partially opens the closed door leaf or the closed drawer.

According to a preferred embodiment of the household refrigerator according to the invention, the electrical component is an inductive component. In this case, the planar component is designed as a planar electric coil. The at least one electrical variable is preferably an inductance, a resistance and / or a reactance of the inductive component. According to this variant, therefore, an inductive method is used. The planar coil is arranged, for example, on a printed circuit board or integrated into it. At a certain distance from the planar coil, the electrically conductive foil, for example, a membrane is arranged, which changes the distance to the planar coil at least partially in pressure change. The change in the distance leads to a change in the electrical values or sizes of the inductive component. The electrical variables are, for example, inductance, resistance or resistance and / or reactance. The coil has a planar structure and interacts with the electrically conductive foil. An alternating current or an alternating magnetic field of the planar coil generates an induction voltage in the electrically conductive foil, which causes eddy currents, which in turn have a retroactive effect on the planar coil.

According to a variant of the household refrigerator according to the invention, the electrical component is a capacitor. In this case, the planar component is a first planar electrode and the electrically conductive foil is a second planar electrode of the capacitor. The at least one electrical variable is preferably a capacitance of the capacitor. In this case, a capacitive method is thus used. The capacitor comprises the two planar electrodes. The first planar electrode is arranged on a printed circuit board or integrated in a printed circuit board. The second planar electrode is formed by the electrically conductive foil, which is arranged at a distance from the first planar electrode. This creates a capacitor. When the pressure changes, the distance of the electrically conductive film is changed at least partially to the printed circuit board or to the first planar electrode, whereby the capacitance changes as electrical size of the capacitor. Due to an evaluation of the capacity or its change, it can be concluded that there is a push or pull on the closed door leaf or on the closed drawer.

The evaluation device may preferably have a resonant circuit with which the at least one electrical variable or its change can be measured.

In order to obtain a predetermined distance between the planar component and the electrically conductive film, the air pressure sensor may have a spacer ring which is arranged between the planar component and the electrically conductive film. The spacer ring is made in particular of an electrically non-conductive material.

The air pressure sensor may include a circuit board having a surface. In this case, the planar component is arranged on the surface, in particular in a depression of the surface. The depression can likewise be used to realize the distance between the planar component and the electrically conductive foil.

On the circuit board and other components of the air pressure sensor and / or the auxiliary device can be arranged. For example, an electronics of the Evaluation device may be arranged on the circuit board. Preferably, however, only the planar component is arranged on the circuit board. As a result, at least a partial mechanical decoupling of the electrical component from other components of the air pressure sensor, such as the evaluation device, can be achieved.

According to a variant of the household refrigerating appliance according to the invention, the air pressure sensor comprises a housing which delimits the pressure chamber and which has an input coupled to the interior to the pressure chamber. The housing of the pressure chamber is preferably made of plastic and / or in particular in one piece.

The housing of the pressure chamber may comprise an opening which is closed by the circuit board such that the surface of the circuit board faces the pressure chamber and the planar component is arranged in the region of the opening within the pressure chamber. This can facilitate the installation of the air pressure sensor.

The circuit board may have a peripherally extending edge, which an edge of the opening at least partially, in particular completely overlaps.

According to a preferred embodiment of the household refrigerating appliance according to the invention, the auxiliary device has a housing, within which substantially all components of the auxiliary device are arranged. Preferably, all necessary for the operation of the auxiliary device electrical and optionally mechanical components are arranged, possibly except for an electrical power supply, in particular within the housing. An optionally existing adjusting body is preferably also arranged in the housing, but then projects at least partially out of the housing, at least in its extended position. The housing of the auxiliary device is preferably made of plastic.

Preferably, in the housing of the auxiliary device, the pressure chamber is formed, i. Boundary walls of the pressure chamber are an integral part of the housing of the auxiliary device.

Preferably, the housing of the auxiliary device comprises a directly connected to the pressure chamber, coupled to the coolable interior entrance. Thereby, the pressure chamber can be relatively easily connected or coupled to the interior, for example via a hose, since the hose can be relatively easily connected from outside the housing of the auxiliary device.

The housing of the auxiliary device preferably comprises two housing parts. Preferably, the pressure chamber of the air pressure sensor is formed in one of the housing parts. On the other housing part then the remaining components of the auxiliary device are attached.

Preferably, this variant also includes the circuit board. Preferably, only the planar component is arranged on the circuit board. Other components of the auxiliary device, in particular electronics of the evaluation device, may be arranged on a further printed circuit board, which is arranged within the housing of the auxiliary device.

The printed circuit board and the further printed circuit board are preferably connected to one another via elastic electrical connections in order to obtain at least a partial mechanical decoupling.

Preferably, the further circuit board is arranged on the housing part, in which not the pressure chamber is formed.

Fig. 1

ein Haushaltskältegerät mit einem Türblatt und einer Hilfsvorrichtung zum Öffnen des Türblatts in einer perspektivischen Darstellung,

Fig. 2

eine Prinzipdarstellung der Hilfsvorrichtung,

Fig. 3

eine Ausführungsform eines Luftdrucksensors der Hilfsvorrichtung in einer Explosionsdarstellung,

Fig. 4

eine alternative Ausführungsform des Luftdrucksensor der Hilfsvorrichtung in einer Explosionsdarstellung, und

Fig. 5

ein Teil einer Ausführungsform der Hilfsvorrichtung in geschnittener perspektivischer Darstellung.

Embodiments of the invention are illustrated by way of example in the accompanying schematic drawings. Show it:

Fig. 1

a domestic refrigerator with a door leaf and an auxiliary device for opening the door panel in a perspective view,

Fig. 2

a schematic diagram of the auxiliary device,

Fig. 3

an embodiment of an air pressure sensor of the auxiliary device in an exploded view,

Fig. 4

an alternative embodiment of the air pressure sensor of the auxiliary device in an exploded view, and

Fig. 5

a part of an embodiment of the auxiliary device in a sectional perspective view.

The Fig. 1 shows a perspective view of a household refrigerator 1, which comprises a thermally insulated body 2 with an inner container 3, which limits a coolable interior 4. The coolable interior 4 is provided for storing food not shown.

In the case of the present exemplary embodiment, the household refrigerating appliance 1 has a pivotable door leaf 5 for closing the coolable interior 4. The door leaf 5 is pivotally mounted, in particular with respect to a vertically extending axis. With open door leaf 5, as in the Fig. 1 shown, the coolable interior 4 is accessible.

On the direction of the coolable interior 4 side facing the door panel 5 a plurality of door racks 6 are arranged for storing food in the case of the present embodiment. In particular, a plurality of shelves 7 are arranged for storing food in the coolable interior 4 and in particular in the lower part of the coolable interior 4, a drawer 8 is arranged, in which also food can be stored.

The refrigeration cycle includes in particular a compressor, a compressor downstream of the condenser, a condenser downstream throttle device, which is designed in particular as a throttle or capillary tube, and an evaporator which is disposed between the throttle device and the compressor. The compressor is preferably arranged within a machine chamber of the domestic refrigerator 1, which is located in particular behind the drawer 8.

In the case of the present exemplary embodiment, the household refrigerating appliance 1 comprises an electronic control device 9 which is set up to control the refrigeration device, in particular the compressor of the refrigerant circuit in a manner well known to those skilled in the art, such that the coolable interior 4 is at least approximately predetermined or predeterminable -Temperature has. The electronic control device 9 is preferably set up to regulate the temperature of the coolable interior 4. In order optionally to obtain the actual temperature of the coolable interior 4, the household refrigerating appliance 1 can have at least one temperature sensor (not shown in greater detail and connected to the electronic control device 9).

The household refrigerator 1 further comprises an auxiliary device 20, which is arranged to at least support an opening of the closed door leaf 5. A schematic diagram of the auxiliary device 20 is shown in FIG Fig. 2 shown.

The auxiliary device 20 is fixed, for example, in or on the body 2 and comprises a setting body, e.g. a plunger 21, which can be automatically moved by means of an actuator 22 of the auxiliary device 20 from a retracted to an extended position. In its retracted position, the plunger 21 allows closing the door leaf 5 or the plunger 21 is pressed when closing the door panel 5 in its retracted position. The actuator 22 includes e.g. an electric motor. The actuator 22 is e.g. by means of an actuator 23, e.g. a driver stage, driven.

In the case of the present exemplary embodiment, the household refrigerating appliance 1 comprises a magnetic seal 10 fastened to the side of the door leaf 5 directed towards the coolable interior 4, said magnetic gasket resting against the front side of the carcass 2 when the door leaf 5 is closed. The magnetic seal 10 is elastic, so that when pressed on the closed door leaf 5 this moves a little in the direction of the coolable interior 4, whereby the air pressure within the coolable interior 4 changes. Due to the elastic magnetic seal 10, when the door leaf 5 is pulled closed, the magnetic seal 10 does not detach immediately from the body 2, as a result of which the air pressure within the coolable interior 4 likewise changes.

In the case of the present embodiment, the auxiliary device 20 is designed such that it recognizes the desire of a person to open the door leaf 5, as soon as the person pulls or pushes on the closed door leaf 5. Thereafter, the actuator 22 automatically moves the plunger 21 from its retracted position to its extended position. During this movement, the plunger 21 pushes the door leaf 5 at least so far that the magnetic seal 10 detaches from the body 2, so that the person can easily open the door leaf 5 completely.

On the basis of a measurement and evaluation of the change in the air pressure within the coolable interior 4, it is thus possible to conclude that there is a pulling or pressing on the door leaf 5 and thus the desire of a person to open the closed door leaf 5.

In the case of the present embodiment, the auxiliary device 20 comprises an air pressure sensor, which is adapted to determine the air pressure within the coolable interior 4 or a change in this air pressure, so that the auxiliary device 20 becomes active in response to the change in this air pressure and automatically the plunger 21 of moved from his retracted to his extended position. The Fig. 3 shows an embodiment of the air pressure sensor 31 in an exploded view. The air pressure sensor 31 includes a pressure chamber 32.

In one embodiment of the auxiliary device 20, the air pressure sensor 31 comprises a in the Fig. 3 shown housing 33, which limits the pressure chamber 32. The housing 33 is preferably made of plastic and in particular made in one piece. The housing 33 comprises an inlet 34, via which the pressure chamber 32 is coupled to the coolable interior 4, for example via a hose, not shown.

The air pressure sensor 31 further comprises an electrical component 37 arranged within the pressure chamber 32 and an evaluation device 35 connected to the electrical component 37, which is set up to control the actuator 22 or the actuator 23.

In the in the Fig. 3 In the exemplary embodiment shown, the pressure sensor 31 has a printed circuit board 36, on which, for example, the evaluation device 35 can also be arranged. The air pressure sensor 32 comprises the electrical component 37, which in the case of in the Fig. 3 shown embodiment is designed as an inductive component 38. The electrical component 37 or the inductive component 38 is arranged within the pressure chamber 32.

The electrical component 37 comprises a sheet-like component 39 and an electrically conductive foil 40 arranged at a distance from the planar component 39. In the case of the electrical component 37 designed as an inductive component 38, the planar component 39 is an areal electric coil 41 electrical coil 41 is preferably designed in multiple layers.

The planar component 39 or the areal electrical coil 41 is in particular arranged or fastened on a surface 42 of the printed circuit board 36, preferably in a recess 43 in this surface 42 of the printed circuit board 36. For example, due to the recess 43, it is possible to use the electrically conductive Foil 40 spaced from the planar component 39 and the planar electric coil 41 within the pressure chamber 32 to arrange.

Preferably, between the planar component 40 and the planar electric coil 41, an electrically non-conductive spacer ring may be provided, which in the Fig. 3 not shown.

In case of in the Fig. 3 In the embodiment shown, the housing 33 of the pressure chamber 32 comprises a preferably circular opening 44 and fastening means 45 with which the housing 33 of the pressure chamber 32 is fastened to the printed circuit board 36. The fastening means 45 are preferably latching means or latching hooks, with which the housing 33 of the pressure chamber 32 is latched to the printed circuit board 36.

The housing 33 of the pressure chamber 32 is fastened to the printed circuit board 36 in such a way that the surface 42, on which the planar component 39 or the planar electric coil 41 is arranged, faces the pressure chamber 32 and the opening 44 closes, and that the planar component 39 and the planar electric coil 41 is disposed in the region of the opening 44 within the pressure chamber 32.

In case of in the Fig. 3 In the embodiment shown, the opening 44 is sealed with a sealing ring 46.

As already stated, pulling or pushing on the closed door leaf 5 causes a change in the air pressure within the coolable interior 4. Since this is coupled to the pressure chamber 32, this change in the air pressure in the pressure chamber 32, whereby the electrically conductive foil 40th a force is exercised. As a result, the distance between the electrically conductive film 40 and the planar component 39 or the planar electrical coil 41 changes at least partially.

The change in the distance generally leads to a change in the electrical size of the electrical component 37, in particular to a change in the inductance, reactance and / or resistance of the inductive component 38. Namely, since the laminar coil 41 interacts with the electrically conductive foil 40 stands, generates eg an alternating current flowing through the planar coil 41 or an alternating magnetic field of the planar coil 41, an induction voltage in the electrically conductive film 40. This leads to eddy currents, which in turn have a retroactive effect on the planar coil 41.

Thus, it is possible, by means of the evaluation device 35, to evaluate at least one electrical variable of the electrical component 37 assigned to the change in the air pressure within the coolable interior 4 so that the auxiliary device 20 or its evaluation device 35 controls the actuator 23 such that the actuator 22 controls the Moves plunger 21 from its retracted to its extended position to at least partially open the closed door leaf 5.

In the case of the inductive component 38, the at least one electrical variable is its inductance, its resistance and / or its reactance. These electrical variables can be determined or evaluated, for example, by means of a resonant circuit of the evaluation device 35.

The Fig. 4 shows an alternative embodiment of an air pressure sensor 31 a, which instead of in the Fig. 3 shown air pressure sensor 31 can be used for the auxiliary device 20. Unless otherwise stated, then are components of in the Fig. 4 shown air pressure sensor 31 a, with components of the in Fig. 3 shown air pressure sensor 31 are substantially identical in construction and function, provided with the same reference numerals.

The circuit board 36 in the Fig. 4 The size of the printed circuit board 36 is the size of the opening 44 of the housing 33 of the pressure chamber 32 adapted and closes them such that the surface 42 on which the planar component 37 or the planar coil 41 is arranged, the pressure chamber 32 faces and thus the planar component 37 and the planar coil 41 is disposed within the pressure chamber 32. In addition, the edge 48 of the opening 44 of the housing 33 overlaps the edge 47 of the printed circuit board 36 at least partially, preferably completely.

The evaluation device 35 and electronic components of the evaluation device 35 are on a in the Fig. 4 Not shown further printed circuit board arranged. As a result, the electrical component 37 or the inductive component 38 is at least partially mechanically decoupled from further components of the auxiliary device 20.

The housing 33 of the pressure chamber 32 of the in Fig. 4 shown air pressure sensor 31 a is not attached to the mounting means 45 to the circuit board 36, but to another, not shown component of the auxiliary device 20, for example a housing of the auxiliary device 20 or to the other circuit board.

The Fig. 5 shows a part of an embodiment of the auxiliary device 20 in a sectional perspective view.

The in the Fig. 5 shown embodiment of the auxiliary device 20 includes a housing 24, disposed within the substantially all components of the auxiliary device 20 are. In particular, within the housing 24, the actuator 22, the actuator 23 and the air pressure sensor are arranged.

The housing 24 of the auxiliary device 20 is in particular made of plastic and preferably comprises two housing parts 25, 26th

The housing 24 in the Fig. 5 shown embodiment of the auxiliary device 20 is designed such that in him the pressure chamber 32 is formed, in particular, the housing 24 of the auxiliary device is formed with the pressure chamber 32 of the air pressure sensor. The pressure chamber 32 is thus an integral part of the housing 24, in the case of in the Fig. 5 embodiment shown an integral part of the housing part 25th

The pressure chamber 32 is e.g. formed by a trough in the housing 24 of the auxiliary device 20.

The housing 24 of the auxiliary device 20 preferably comprises an input 27 connected directly to the pressure chamber 33, via which the pressure chamber 32 communicates with the coolable interior 4, e.g. is coupled via a hose, not shown.

The air pressure sensor further comprises the electrical component 37 or the inductive component 38 arranged within the pressure chamber 32, that is to say the planar component 39 or the planar coil 41 and the electrically conductive foil 40 arranged at a distance from the planar component 39.

For those in the Fig. 5 In the embodiment shown, the printed circuit board 36 is also provided, on the surface 42 of which the planar component 39 or the laminar coil 41 is fastened.

The boundary walls of the pressure chamber 32 in particular have an opening 28 which is closed by the printed circuit board 36. Preferably, the size of the circuit board 36 is adapted to the size of the opening 28 of the pressure chamber 32 and closes it such that the surface 42 of the circuit board 36, on which the planar component 37 and the planar coil 41 is arranged, the Pressure chamber 32 faces and thus the planar component 39 and the planar coil 41 is disposed within the pressure chamber 32.

Preferably, between the planar component 39 and the planar electric coil 41 and the electrically conductive foil 40, an electrically non-conductive spacer ring 49 is provided.

In case of in the Fig. 5 The embodiment shown, the sealing ring 46 is also provided so that the electrically conductive film 40 is clamped between the sealing ring 46 and the spacer ring 49.

The in the Fig. 5 shown embodiment of the auxiliary device 20 includes a further printed circuit board 29 on which, for example, the evaluation device 35 and an electronics of the evaluation device 35 is arranged. For an electrical connection of the electrical component 37 or of the inductive component 38 with the evaluation device 35 electrical connections 30 are provided. The electrical connections 30 in particular connect the printed circuit board 36 with the further printed circuit board 29. The electrical connections 30 are preferably elastic. Preferably, the further circuit board 29 is arranged on the housing part 26, in which not the pressure chamber 32 is formed.

The electrical component 37 can also be designed as a capacitor. In this case, the planar component 39 is a first planar electrode and the electrically conductive foil 40 is a second planar electrode. The at least one electrical variable, which is evaluated by the evaluation device 35, is then the capacitance of this capacitor, which changes as the distance between the two planar electrodes changes.

The household refrigerating appliance 1 may also have a drawer which is at least partially pulled out of the coolable interior 4 and hineinschiebbar in the coolable interior 4. In the pushed-in state, this drawer closes the coolable interior 4. If this drawer at least partially pulled out of the coolable interior 4, then it is open. The auxiliary device 20 may then also be provided to recognize the desire to open the drawer.

In the case of the present embodiment, the auxiliary device 20 is designed to recognize the desire of a person to open this drawer as soon as the person pulls or pushes on the closed drawer. Thereafter, the actuator 22 automatically moves the plunger 21 from its retracted position to its extended position. During this movement, the plunger 21 pushes the drawer at least as far from the coolable interior 4, that a magnetic seal of the drawer detaches from the body 2, so that the person can easily open the drawer completely. <B> LIST OF REFERENCES </ b> 1 Household refrigerator 31, 31a Air pressure sensor 2 corpus 32 pressure chamber 3 inner container 33 casing 4 coolable interior 34 entrance 5 door leaf 35 evaluation 6 door racks 36 circuit board 7 shelves 37 electrical component 8th drawer 38 inductive component 9 electronic control device 39 planar component 10 magnetic seal 40 electrically conductive foil 20 auxiliary device 41 planar electric coil 21 tappet 42 surface 22 actuator 43 deepening 23 actuator 44 opening 24 casing 45 fastener 25, 26 housing part 46 sealing ring 27 entrance 47, 48 edge 28 opening 49 spacer 29 circuit board 30 electrical connections

Claims (10)

Domestic refrigerating appliance comprising a heat-insulated body (2) having an inner container (3) with a refrigerated interior (4) provided for storing food, a cooling device provided for cooling the coolable interior (4) and an auxiliary device (20), and a relative to the body (2) pivotally mounted, for opening and closing the coolable interior (4) provided door leaf (5) or a drawer, which is pushed in the closed state in the coolable interior (4) to close it, and in the open Condition is at least partially pulled out of the coolable interior (4), wherein the auxiliary device (20) comprises an air pressure sensor (31, 31 a) which is adapted to a due to a pressing and / or pulling on the closed door leaf (5) or on to determine the change in the air pressure within the coolable interior (4) resulting from the closed drawer, and the auxiliary device (20) engages Is, depending on the determined change in the air pressure automatically open the closed door leaf (5) or the closed drawer at least partially, characterized in that the air pressure sensor (31, 31 a) coupled to the coolable interior (4) pressure chamber (32 ), an electrical component (37) arranged within the pressure chamber (32) and an evaluation device (35) which is set up to evaluate at least one electrical variable of the electrical component (37) assigned to the change in air pressure so that the auxiliary device (20 ) depending on the evaluated electrical size, the closed door leaf (5) or the closed drawer at least partially opens, wherein the electrical component (37) has a planar component (39) and a planar component (39) spaced at a distance electrically conductive foil (40). Domestic refrigerating appliance according to claim 1, characterized in that the electrical component (37) is an inductive component (38), the planar component (39) is designed as a planar electric coil (41), and in particular the at least one electrical quantity is an inductance, a resistance and / or a reactance of the inductive component (38). Domestic refrigerating appliance according to claim 1, characterized in that the electrical component (37) is a capacitor, wherein the planar component (39) is a planar first electrode and the electrically conductive foil (40) is a second electrode of the capacitor and in particular the at least one electrical Size is a capacitance of the capacitor. Domestic refrigerating appliance according to one of claims 1 to 3, characterized in that the air pressure sensor has a spacer ring (49) which is arranged between the planar component (39) and the electrically conductive film (40). Domestic refrigerating appliance according to one of claims 1 to 4, characterized in that the air pressure sensor (31, 31a) has a printed circuit board (36) with a surface (42) and the planar component (39) on the surface (42), in particular in a recess (43) of the surface (42) is arranged. Domestic refrigerating appliance according to claim 5, characterized in that on the circuit board (36) only the planar component (39) is arranged. Domestic refrigerating appliance according to one of claims 1 to 6, characterized in that the auxiliary device (20) has a housing (24) within which substantially all components (22, 23, 35) of the auxiliary device (20) are arranged and in which the pressure chamber (32) is formed. Domestic refrigerating appliance according to claim 7, characterized in that the housing (24) of the auxiliary device (20) comprises a directly to the pressure chamber (32) connected to the coolable interior (4) coupled to the input (27). Domestic refrigerating appliance according to one of claims 1 to 6, characterized in that the air pressure sensor (31, 31 a) has a housing (33) which delimits the pressure chamber (32) and one with the coolable interior (4) coupled to the input (34) to the pressure chamber (32), and in particular the housing (33) has an opening (44), which is closed by the circuit board (36) such that the surface (42) of the printed circuit board (36) faces the pressure chamber (32) and the planar component (39) in the region of the opening (44) within the Pressure chamber (32) is arranged, wherein in particular the circuit board (36) has a peripherally extending edge (47) which an edge (48) of the opening (44) at least partially, in particular completely overlaps. Method for operating a household refrigerating appliance (1) according to one of claims 1 to 9, comprising the following method steps: - Determining a value or a change in the at least one electrical variable of the electrical component (37) by means of the evaluation device (35), wherein the at least one electrical variable due to an at least partially changing distance between the electrically conductive film (10) and the planar component (39) changes due to a change in air pressure resulting from pulling or pushing on the closed door leaf (5) or on the closed drawer, - Evaluating the determined value or the determined change of the at least one electrical variable by means of the evaluation device (35), and - Depending on the evaluation, activating the auxiliary device (20) so that it at least partially opens the closed door leaf (5) or the closed drawer.

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