ES2429392A1 - Domestic refrigerator with a manually adjustable cross section of the flow (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Domestic refrigerator appliance with a manually adjustable cross section of the flow. The invention relates to a domestic refrigerator appliance (1), which has an internal heat-insulating receptacle (3a), delimiter of at least one receiving space (5a, 5b) for refrigeratable product, a cooling device that is configured to generate a current of cold air, and an intermediate wall (13) having at least one passage opening (23, 23a, 23b) for introducing the cold air stream into the accommodation space (5a, 5b), wherein the at least one a passage opening (23, 23a, 23b) has a cross section of the manually adjustable flow. (Machine-translation by Google Translate, not legally binding)

Description

Domestic refrigerator appliance with a cross section of the manually modifiable bypass current

The invention relates to a domestic refrigerating apparatus, which has an internal thermal insulating receptacle, 5 delimiter of at least one accommodation space for refrigerable product, a cooling device that is configured to generate a cold air current, and an intermediate wall presenting at least one passage opening to introduce the cold air stream into the housing space.

DE 101 61 306 A1 discloses a frost-free refrigeration apparatus (no frost) with at least one housing of 10 housing and an evaporator disposed separately from the housing compartment in a heat-insulating manner, as well as a fan to drive an air exchange between the Housing compartment and evaporator. In this, at least one of the evaporator and the fan is operable, while the other is disconnected.

In dynamically directed refrigerating appliances, in particular in refrigeration appliances of the "no frost" type, the temperature in the cooling compartment is generally regulated by means of a cover for the engine or electrically directed air. In this, a stream of cold air generated outside the cooling compartment is introduced into it through a passage opening. When this happens, a control and / or regulation of the temperature in the refrigeration compartment takes place by opening and / or closing said motor cover electrically or within a supply channel towards the passage opening. However, this means that the entire cooling compartment is regulated uniformly, that is, homogeneously, at a particular temperature. In refrigerating appliances of the type called "frost-free", an evaporator of a cooling device is generally outside the refrigeration compartment, and a stream of cold air cooled through the evaporator, and driven, for example, by an electric fan, It is actively introduced into the cooling compartment through the passage opening. 25

The task of the invention is to expose a domestic refrigerating apparatus in which a user can manually adjust or reset the temperature in a housing compartment of the domestic refrigerating apparatus individually.

The task of the invention is solved by means of a domestic refrigerating apparatus, which has an internal thermal insulating receptacle, delimiter of at least one accommodation space for refrigerable product, a refrigerating device that is configured to generate a cold air current, and an intermediate wall. which has at least one passage opening to introduce the cold air stream into the housing space, in which the at least one passage opening has a cross section of the manually modifiable flow current. 35

The cooling device may be made in one of the ways known to the person skilled in the art. Thus, the cooling device may have a refrigerant circuit with at least one compressor, an evaporator, a liquefactor, and a throttle valve. In this case, the cooling device, especially also the evaporator, can be arranged completely outside the at least one housing space, where the cold air stream generated by the cooling device, in particular next to the evaporator, can be introduced from outside. of the housing space therein, by way of example driven by an electric fan, through the passage opening in the intermediate wall. The intermediate wall may be arranged by way of example inside the inner receptacle, or form a part thereof.

The invention can make it possible for a user of the domestic refrigerating apparatus to regulate the temperature, for example, in a given area of a refrigeration compartment, of a housing space, or of a refrigeration zone, in accordance with their respective needs . A simple sliding regulator can already make it possible to manually open and / or close the at least one passage opening or ventilation slots, so that the temperature can be influenced by manually adjusting the cross-section of the 50-passage current of the passage openings . Such temperature and / or humidity control works especially in refrigerating devices that are dynamically operated, that is, in domestic refrigerating appliances in which the temperature in the cooling compartment is directed by fans and air guides.

By way of example in dynamically directed refrigerating devices, the temperature in the refrigeration compartment is generally automatically regulated by means of a cover for the engine and / or electrically directed air, which means that the cooling compartment Full is automatically regulated evenly. In this type of direction, or regulation, exclusively automatic, there is no possibility of additionally regulating a cooling compartment manually.

The domestic refrigerating apparatus, especially the intermediate wall, may have a screen housed in a mobile manner, which is configured to cover the passage opening at least partially or completely, depending on a shielding position of the screen. In this, the screen itself adjusts the cross section of the passage current at least partially or completely, so that the effective cross section of the passage current of the passage opening can be reduced and / or increased by moving especially manually screen 65

correspondingly. In the case of a manually adjustable display, the cross-section of the passage current of the passage opening can be modified without auxiliary energy, such as electrical energy.

Next to the air guide, especially in the intermediate wall, the screen or a slide can be placed and, precisely, connected to an opening arranged next to the air guide, that is, the passage opening. The passage opening can be closed by operating the screen or the slide, so that the air flow can be interrupted and, therefore, cold air cannot enter this area. The screen or the slide can be arranged next to each passage opening of the air guide. The user of the domestic refrigerator can choose, or adjust, how the temperature and / or humidity in this compartment should be.

The screen does not necessarily have to be completely arranged in the housing compartment, that is, manually accessible in front of the end of the air guide, or, in front of the passage opening, but, in a modification of the invention, by way of example, the screen itself can be housed deeper in the intermediate wall, that is, behind the exit end of the passage opening, in which only one grip or grip section is manually accessible from the housing compartment, and the grip or grip section are coupled, especially mechanically, with the screen housed clogged.

The screen can have at least one screen opening, especially rigid, which is adjustable in relation to the passage opening of the intermediate wall. If the screen opening is made rigidly, the additional moving parts that should be assembled are suppressed, and which would be, where appropriate, prone to functional failures. By means of a rigid screen opening, an economical and / or safe operating screen is created.

The screen can have at least two screen openings separated in each case by a screen wing and / or the intermediate wall can have at least two passage openings separated in each case by a wall wing. Thus, the screen or the intermediate wall can have, by way of example, slots, where by adjusting the screen with respect to the intermediate wall, a larger or smaller number of slots can be optionally opened or closed. Both the screen and the intermediate wall can have grooves, in which the screen wing and wings of the intermediate wall can more or less cover the grooves of the other respective component of the screen and the intermediate wall depending on the shielding position. 30

Screen openings and passage openings can be made identically in shape and size. Thus, a maximum cross-section of the passage current can be achieved if the screen openings and the passage openings made identically are aligned with each other, that is, if they are positioned on each other in a coincident manner. 35

In one embodiment, the intermediate wall can have at least two passage openings between which a closed wall section of the intermediate wall extends, where the screen has a screen opening associated with a passage opening, and is made such that an outer marginal section of the screen covers the other passage opening of the intermediate wall at least partially or completely, depending on the position of the outer marginal section of the screen. In other words, the intermediate wall has, by way of example, two passage openings, and the screen has only a particular screen opening therein. Consequently, the only screen opening of the screen is associated with a passage opening of the two passage openings, and the second passage opening is opened and / or closed by an outer marginal section of the screen. Four. Five

In all corresponding embodiments, the screen can be made as a slide that is linearly movable along the intermediate wall. Consequently, the slide can be arranged flat on a surface of the intermediate wall directed towards the housing space. In this regard, in its closed position, the screen can rest on the flush passage opening with the intermediate wall 50.

In the embodiments of the screen as a slider housed in a linearly movable manner, the intermediate wall can have two guides that run especially in parallel, delimiting the at least one passage opening of opposite sides, in which the slider is housed. linearly scrollable way. In this case, the guides can be made as notches or slats, next to which, or, behind which, they can engage in trailing form and in a displaceable way marginal outer sections of the slide. Therefore, the guides can form linear supports with the outer marginal sections of the slide.

In this, the screen can have at least one marginal section in the shape of a notch, which envelops a guide of the intermediate wall, where the screen has an elongated hole in which the second guide, formed as a snap hook, of the intermediate wall When this happens, the marginal notch-shaped section envelops by way of example the upper edge of a panel of the intermediate wall. In this regard, the slide can be hooked on an upper edge of the panel by its marginal section in the shape of a notch, and be held in a linearly movable manner. Next to the marginal notch-shaped section, the

screen, or the slide, can have an elongated hole in which the second guide of the intermediate wall made as a snap hook engages. As an example, the snap hook can be made in one piece with the intermediate wall. In this, the snap hook can wrap one of the two edges of the elongated hole so that the screen, or the slide, is fastened near the back side of the intermediate wall. The length of the elongated hole can correspond to the maximum sliding length of the screen, or of the slide. In this sense, the front ends of the elongated hole can be considered sliding stops that delimit the maximum sliding path of the screen, or of the slide.

In all embodiments, the screen may have at least one fitting device, and the intermediate wall 10 may have an engaging device that interacts with the fitting device, where the fitting device and the locking device are fitted. configured to lock the screen at least in a closed position, a full opening position and / or a partial opening position. The fitting device can be made in one piece with the screen, or the slide. For this, the screen, or the slide, can have a first longitudinal opening, that is, an elongated hole, whose contour of the opening is provided with at least one projection, where the projection can interact, by way of example, with a lace plug that forms the lace antagonist device.

The plug can be made in one piece with the intermediate wall. In a completely closed closing position of the screen, or of the slide, the fitting pin would lie, for example, 20 behind the projection, so that, in order to open the passage openings again, it is necessary to lift again the socket pin above the projection with a correspondingly greater force. Similarly, an insert in a fully open opening position can take place through the fitting pin coming between, for example, two projections. For a new, at least partial, closure of the passage openings, in this embodiment it is then necessary to raise the fitting pin over one of the two projections 25 with a correspondingly greater force. In order for the snap pin to be resiliently raised as a spring above the projections, the projections may be provided next to an elastic spring-like wing. A spring-like elastic wing of such a type can be formed through which, in parallel to the longitudinal opening, the slide, or a second longitudinal opening, that is, an elongated hole underneath, is incorporated into the screen. The first longitudinal opening. 30

In all embodiments, the screen may have a grip section that is configured to enable screen adjustment by actuating the grip section by a user's hand or finger. The grip section can be made in a piece with the screen, or the slide. Also, the grip section can be grasped, for example, by two opposite grip surfaces, for example, with a thumb 35 and an index of one hand, and move it to the left and / or to the right. By doing this, the grip section can move in a gap between an upper edge of a section of the contour of the passage opening and an upper edge of an intermediate wall panel.

In all embodiments, the housing space, or the internal receptacle, can have at least two cooling zones, especially two cooling zones of different temperature and / or humidity, and each cooling zone can be associated with a separate passage opening, especially exactly a particular passage opening, whose cross-section of the passage current is manually modifiable. Thus, a user of the domestic refrigeration apparatus can manually adjust each cooling zone individually in terms of temperature and / or humidity. Four. Five

Different exemplary embodiments of the invention are represented by way of example in the accompanying schematic drawings.

Show: 50

Fig. 1 a perspective view of a domestic refrigerator with several housing spaces for refrigerable product,

Fig. 2 a schematic perspective view of a first embodiment of an intermediate wall 55 in individual position, which has a passage opening according to the invention with a cross-section of the manually modifiable passage current,

Fig. 3a an enlarged representation of the passage opening according to Figure 2 with a sliding screen, in a first partial opening position in which the passage opening is covered, that is, closed, in approximately two thirds parts,

Fig. 3b an enlarged representation of the passage opening according to Figure 2 with the screen in the form of a slide, in a second partial opening position in which the passage opening is covered, that is, closed, in about a third , 65

Fig. 4a a perspective representation of a rear view of the screen housed next to the intermediate wall, in the first partial opening position according to figure 3a,

Fig. 4b a perspective representation of a rear view of the screen housed next to the intermediate wall, in the second partial opening position according to Figure 3b, 5

Fig. 5 a schematic perspective view of a second embodiment of an intermediate wall in individual position, which presents an alternative embodiment of the passage opening with a cross-section of the manually modifiable passage current, and

Fig. 6a to 6c enlarged representations of the passage opening according to figure 5 with a screen in the second embodiment, in three different shield positions.

Figure 1 shows a domestic refrigerator 1, which is in the case of the present embodiment a combined refrigerator-freezer. The domestic refrigerating apparatus 1, which is made especially as a frost-free appliance, has a body 3, or an internal receptacle 3a, which delimits in the example of embodiment shown two thermally insulated housing spaces 5a, 5b for product refrigerable The upper housing space 5a can be provided by way of example to accommodate refrigerable product above the freezing point, for example about 10 degrees Celsius, and can be cooled by a refrigeration device, not described in more detail, basically known For the subject matter expert. 20 The accommodation space 5a can be closed by a door leaf 7a, and has several cooling zones 11 delimited from each other by compartment bases 9.

A lower housing space 5b may be provided, by way of example, to house frozen product below the freezing point, for example, near minus 18 degrees Celsius, and may be cooled by the same or other cooling device not described in more detail, known basically to the person skilled in the art. The accommodation space 5b can be closed through a door leaf 7b.

The domestic refrigerator 1 has an intermediate wall 13 made in the exemplary embodiment represented as a rear wall 13a, which is housed in front of a wall of the internal receptacle 3a. 30

In figure 2, the intermediate wall 13 is shown in individual position. In the illustrated embodiment, the intermediate wall 13 has a fixed ventilation slot 15, which is formed by a narrow, elongated opening 17 in the intermediate wall 13, where a wall section 19 of the intermediate wall 13, located above the elongated opening 17, it is chamfered so that a stream of cold air protruding from the opening 17 does not exit the ventilation slot 15 perpendicularly to the surface of the intermediate wall 13, but directed upward at an angle . The intermediate wall 13 has at least one air duct 21, which distributes the cold air current generated by the cooling device throughout the height of the intermediate wall 13. The at least one air duct 21 is made in a heat insulated manner by heat insulating material not described in more detail. 40

The intermediate wall 13 has at least one passage opening 23 with a cross section of the manually modifiable flow current. The two passage openings 23 by way of example in the embodiment shown are designed to introduce a stream of cold air generated by the cooling device into the housing space. In Figures 3a to 3b, the passage openings 23 in enlarged individual positions 45 are shown.

Figure 3a shows an enlarged partial area of the intermediate wall 13. In this partial area, a first passage opening 23a and a second passage opening 23b are formed with the intermediate wall 13 having an essentially rectangular contour section 25 with an upper edge 25a, a lower edge 50 25b, a left side edge 25c shown on the left in Figure 3a, and a right side edge 25d represented on the right in Figure 3a, in which, starting from the lower edge 25b, an essentially rectangular panel 27 extends into the contour section 25 leaving the passage openings 23a, 23b. Accordingly, the panel 27 essentially closes the section of the contour 25 open leaving only the passage openings 23a and 23b. The panel 27 separates the two passage openings 23a and 23b in this direction from each other. Expressed in another way, the first passage opening 23a is then arranged at one longitudinal end of the panel 27, and the second passage opening 23b is then arranged at the other longitudinal end of the panel 27. In particular, the panel 27 may be made in a piece with the intermediate wall 13, and may have, as shown, a slightly curved shape.

As shown, the first passage opening 23a can have a basically square contour. Also, the second passage opening 23b may have, as shown, a basically square contour. The two passage openings 23a and 23b can therefore have identical contour shapes. In the present exemplary embodiment of Figures 3a to 4b, a scrollable screen 29 is housed behind the panel 27. In this regard, the screen 29 is configured in this embodiment as a slide 29a housed in a linearly movable manner next to the intermediate wall 13.

In this sense, the intermediate wall 13 has two passage openings 23a, 23b, between which a closed wall section extends, namely the panel 27 of the intermediate wall 13. The screen 29 has a screen opening 29b associated with a passage opening 23b. In addition, the screen 29 is made such that an outer marginal section 29c of the screen 29 covers the other passage opening 23a of the intermediate wall 13 at least partially or completely, depending on the position of the outer marginal section 29c of the screen 29, such 5 and as it is especially represented in Figures 4a and 4b.

The screen 29, or, the slide 29a, is connected with a grip section 33, which is configured to make an adjustment of the screen 29, or, the slide 29a possible, the grip section 33 being operated by a a user's hand or finger. The grip section 33 can be made in one piece with the screen 29, or with the slide 29a, and in the exemplary embodiment shown it has a basic wedge-shaped shape. Accordingly, the grip section 33 can be grasped by two opposite grip surfaces 33a, 33b, essentially triangular in the present exemplary embodiment, by way of example, with a thumb and an index of one hand, and move it to the left and / or to the right. In doing so, the grip section 33 moves in a recess 35 between the upper edge 25a of the contour section 25 and an upper edge of the panel 27. 15

As shown in more detail in Figure 4a and Figure 4b in rear view, the intermediate wall 13 presents two guides 31a, 31b, which run in parallel, delimiters of the first passage opening for the movable housing of the slide 29a 23a and of the second passage opening 23b of opposite sides, in which the slider 29a is housed in a linearly movable manner. twenty

In the embodiment shown, the first guide 31a is formed by a recess 35 in the intermediate wall 13, which is delimited on the one hand by the upper edge 25a of the contour section 25 and by the upper edge of the panel 27. In this hole 35 a notch-shaped marginal section 37 of the slide 29a engages. In this, the marginal notch-shaped section 37 envelops the upper edge of the panel 27. In other words, the slider 29a is hooked from the upper edge of the panel 27 by its marginal notch-shaped section 37, and is held in place. linearly scrollable way.

Next to the marginal notch-shaped section 37, the screen 29, or the slider 29a, has an elongated hole 39 in which the second guide 31b of the intermediate wall 13 made as a snap hook 41. 30 engages. For example, the snap hook 41 is made in one piece with the intermediate wall 13, as it is embodied in the embodiment shown. The snap hook 41 wraps one of the two edges of the elongated hole 39 such that the screen 29, or the slider 29a, is held close to the rear side of the intermediate wall 13 and, by way of example, cannot pivoting away unwantedly from the rear side of the intermediate wall 13 when the grip section 33 is operated. The length of the elongated hole 39 corresponds to the maximum sliding length of the screen 29, or of the slide 29a. In this sense, the front ends of the elongated hole 39 can be considered sliding stops that delimit the maximum sliding path of the screen 29, or of the slide 29a.

The screen 29, or, the slide 29a, also has a fitting device 43, and the intermediate wall 13 40 has a locking device 45 that interacts with the fitting device 43, where the fitting device 43 and the device lace antagonist 45 are configured to lock the screen 29, or the slider 29a, at least in a closed position, a full opening position and / or a partial opening position. In the exemplary embodiment of Figure 4a and Figure 4b, the fitting 43 is made in one piece with the screen 29, or the slide 29a. For this, in the embodiment shown on the screen 29, 45 or, the slide 29a has a first longitudinal opening 47, whose opening contour is provided with at least one, in the present embodiment of Figure 4a and the Figure 4b, with three projections 49a, 49, 49c. In the present exemplary embodiment, the projections 49a, 49b, 49c interact with one, in the present exemplary embodiment, single socket pin 51, which in this embodiment forms the socket antagonist device 45. In this case, the Lace plug 51 is made in one piece with the intermediate wall 13. In the position of the screen 29, or of the slide 29a, opened in approximately one third, as shown in Figure 4a, the fitting pin 51 sits to the right of the projection 49a, so that the screen 29, or the slider 29a, can move essentially free and, if necessary, is housed next to the intermediate wall 13 in a tight manner , so that the screen 29, or the slider 29a, at least does not rattle or move involuntarily. In a completely closed closing position of the screen 29, or, of the sliding slide 29a, the fitting pin 51 would then lie to the left next to the projection 49a, so that, to reopen the openings of step 23a, 23b, it is necessary to lift the fitting pin 51 above the projection 49a to the right side with a correspondingly greater force. Similarly, an insert in a fully open opening position can take place through the fitting pin 51 coming between the projection 49b and the projection 49c. For a new, at least partial, closure of the 60 passage openings 23a, 23b, then it would be necessary to raise the fitting pin 51 above the projection 49b to the left side, that is, between the projection 49a and the projection 49b, with a correspondingly greater use of force. In order that the plug 51 can be elastically lifted as a spring above the projections 49a, 49b, 49c, the projections 49a, 49b, 49c are provided next to an elastic spring-like wing 53. The wing spring-like elastic 53 is produced through that, parallel to the opening 65

longitudinal 47, the slide 29a, a second longitudinal opening 55 below the longitudinal opening 47, is incorporated in the screen 29.

In figure 4a and figure 4b, a threaded dome 57 is also shown, which, however, is independent of the functions according to the invention, and only serves to be able to mount the intermediate wall 5 13 as a fixing means, by way of For example, next to the internal receptacle 3a of the domestic refrigerator 1 by means of screws 59 (Figure 3a and Figure 3b). Figure 5 and Figures 6a to 6c show an alternative embodiment of the invention. The intermediate wall 13 has a screen 29.2 housed in a mobile manner, which is made to cover, at least partially or completely, the, in the present example of embodiment three, passage openings 23.1, 23.2, 23.3 of the intermediate wall 13 , depending on the shielding position of the screen 29.2. The three 10-step openings 23.1, 23.2, 23.3 are separated from each other in each case by a wall wing 61.1, 61.2.

The screen 29.2 has a flat sliding tongue, which has an approximately rectangular basic shape, where an approximately triangular flange 63 is formed next to a lower end of the sliding tongue, next to whose pointed end a grip pivot 65 is arranged The 15-pin pivot 65 protrudes from the plane of the flat slide tab, or from the flat tab, so that it can be easily grasped with two fingers of one hand. By raising and / or sinking the grip pivot 65, the screen 29.2 can be adjusted in height, so that only a particular passage opening 23.3 is discovered, as shown in Figure 6a, or two openings of step 23.2 and 23.3, as shown in figure 6b, or all of the three openings of step 23.1, 23.2 and 23.3 are discovered, as shown in figure 6c.

For the linearly movable height adjustment of the screen 29.2, the intermediate wall 13 has two opposite perpendicular guides 31.1 and 31.2, behind which they engage marginal sections of the screen 29.2, so that the screen 29.2 is linearly movable together. to intermediate wall 13. 25

List of reference symbols

 Domestic refrigerator appliance

 Body

 3rd

 Internal receptacle

 5a, 5b

 Accommodation spaces

 7a, 7b

 Door leaves

 Basis of compartment

 Cooling zones

 Intermediate wall

 13th

 Back wall

 Ventilation slot

 Opening

 Wall section

 Air ducting channel

 23, 23a

 First passage opening

 23, 23b

 Second passage opening

 23.1, 23.2, 23.3

 Openings

 Contour section

 25th

 Top edge

 25b

 Bottom edge

 25c

 Lateral edge

 25d

 Lateral edge

 Panel

 screen

 29th

 Slide

 29b

 Screen opening

 29c

 Outer marginal section

 31a, 31.1

 First guide

 31b, 31.2

 Second guide

 Grip section

 33a, 33b

 Grip surfaces

 Hole

 Notched marginal section

 Elongated hole

 Lace hook

 Lace device

 Lace antagonist device

 Longitudinal opening

 49a to 49c

 Outgoing

 Lace plug

 Spring-like elastic wing

 Second longitudinal opening

 Threaded dome

 Screw

 61.1, 61.2

 Wall wing

 Eyelash

 Grip pin

Claims (12)

1. Domestic refrigerator apparatus, which has an internal thermal insulating receptacle (3a), delimiter of at least one accommodation space (5a, 5b) for refrigerable product, a cooling device that is configured to generate a cold air current, and a wall intermediate (13) having at least 5 a passage opening (23, 23a, 23b) to introduce the cold air stream into the housing space (5a, 5b), characterized in that the at least one passage opening (23, 23a, 23b) has a cross-section of the manually modifiable bypass current. 2. Domestic refrigerating apparatus according to claim 1, characterized in that the domestic refrigerating apparatus 10 (1), especially the intermediate wall (13), has a screen (29) housed in a mobile manner, which is configured to cover the opening of step (23, 23a, 23b) at least partially or completely, depending on a shielding position of the screen (29). 3. Domestic refrigerator apparatus according to claim 2, characterized in that the screen (29) has at least one screen opening (29b), especially rigid, which is adjustable in relation to the passage opening (23, 23a, 23b ) of the intermediate wall (13). 4. Domestic refrigerator apparatus according to claim 3, characterized in that the screen (29) has at least two screen openings separated in each case by a screen wing and / or the intermediate wall (13) has at least two passage openings (23.1, 23.2, 23.3) separated in each case by a wall wing (61.1, 61.2). 5. Domestic refrigerator apparatus according to claim 3, characterized in that the intermediate wall has at least two passage openings (23, 23a, 23b) between which a closed wall section (27) of the intermediate wall (13) extends , and the screen (29) has a screen opening (29b) associated with a passage opening (23, 23a, 23b), and the screen (29) is made such that an outer marginal section (29c) of the screen (29) covers the other passage opening (23, 23a, 23b) of the intermediate wall (13) at least partially or completely, depending on the position of the marginal section of the screen (29). 30 6. Domestic refrigeration apparatus according to one of claims 2 to 5, characterized in that the screen (29) is made as a slide (29a) housed in a linearly movable manner next to the intermediate wall (13). 7. Domestic refrigerator apparatus according to claim 6, characterized in that the intermediate wall (13) has two guides (31a, 31b) that run especially in parallel, delimiters of the at least one passage opening (23, 23a, 23b) of sides opposite, in which the slide (29a) is housed in a linearly movable manner. 8. Domestic refrigerator apparatus according to claim 7, characterized in that the screen (29) has at least one marginal notch-shaped section (37), which wraps the guide (31a) of the intermediate wall (13), and the screen (29) has an elongated hole (39) in which the second guide (31b), formed as a snap hook (41), of the intermediate wall (13) engages. 9. Domestic refrigerator apparatus according to one of claims 2 to 8, characterized in that the screen (29) has at least one fitting device (43), and the intermediate wall (13) has an interacting fitting device (45) that interacts with the fitting device (43), where the fitting device (43) and the locking device (45) are configured to lock the screen (29) at least in a closed position, a full opening position and / or a partial opening position 50. 10. Domestic refrigeration apparatus according to one of claims 2 to 9, characterized in that the screen (29) has a grip section (33) that is configured to enable adjustment of the screen (29) by actuating the grip section (33) by a user's hand or finger. 55 11. Domestic refrigerator apparatus according to one of claims 1 to 10, characterized in that the housing space (5a, 5b) has at least two cooling zones (11), especially two cooling zones (11) of different temperatures and / or humidity, and a separate passage opening (23, 23a, 23b) is associated with each cooling zone (11), especially exactly a particular passage opening (23, 23a, 23b), whose cross section of the flow stream Step is manually modifiable.