Refrigerator

FIELD: designs of refrigerators.

SUBSTANCE: refrigerator with inner cavity restricted by heat insulation housing and door and having plate type evaporator arranged on wall of housing for cooling inner cavity and placed at least on part of wall of lower (at working position of refrigerator) zone of inner cavity. Refrigerating capacity of evaporator in its part related to lower and to upper zones respectively is calculated in such a way that in upper zone of inner cavity lower temperature is achieved in comparison with temperature achieved in lower zone of inner cavity. Evaporator is made, practically in the form of rectangle in one angle of which in part of wall related to lower zone cutout is formed. Or evaporator has in part of wall related to lower zone region with lowered refrigerating capacity in comparison with refrigerating capacity of remaining surface of evaporator. In front of said region inside inner cavity of refrigerator extensible shelf is arranged.

EFFECT: possibility for creating inside inner space of refrigerator zone suitable for storing drinks.

11 cl, 10 dwg

 

The technical field

The invention relates to a refrigerator with an internal cavity bounded by the insulating body and the door, and with plate evaporator, located on the inner wall of the cavity opposite the door.

The level of technology

In prevalent in present designs of refrigerators, for example, in a table or built-in refrigeration cabinets, combined refrigeration units, etc. on the inner side of the door, as a rule, provides a shelf for beverage containers. Vessels with drinks have preferably near the door because due to the relatively intensive inflow of heat in this region, the temperature there is higher than in the rest of the internal cavity, and this allows you to keep drinks at a pleasant drinking temperature, and other products that are located in the rest of the internal cavity at a lower temperature.

To reduce the energy consumption of the refrigerators, it is desirable to effectively isolate them in doors. As a result of this improved thermal insulation of the above-mentioned temperature difference becomes smaller, and to store drinks at a pleasant drinking temperature, it is necessary to install in the internal cavity of the temperature, which is not optimal for the storage of other foods, and if you install the Optima is inuu temperature for these other products, then there is the danger of hypothermia beverages stored in the door area.

Disclosure of inventions

The task of the invention therefore is to provide a refrigerator that even a highly effective insulation around the perimeter, however, allows you to create internal space area suitable for storage of beverage containers.

This problem is solved according to the invention by the characteristics of paragraph 1 of the claims.

A simple way to achieve such a temperature distribution is in this arrangement, the evaporator, so that part of the wall belonging to the lower zone was covered lower part of the evaporator than the portion relating to the upper zone, which is usually covered by the evaporator completely.

In most cases, the evaporator has the shape of a rectangular plate. According to the invention to reduce the cooling capacity of the evaporator in the lower zone in the lower right corner of this plate is cut. This allows a simple way to create a region of reduced cooling capacity.

You can also instead of complete removal of the fins of the evaporator in this area is simply to reduce the density of the tubes with refrigerant compared with the rest of the surface of the evaporator or, in the extreme case, exclude them there.

In a preferred embodiment, prior to cut participants who ohms or before the plot with reduced cooling capacity in the inner cavity of the refrigerator is a pull-out container, allows you to set it packing rows one behind the other along the depth of the internal cavity and pushing the container easy to remove any of them.

The height of the plot with the neckline or with reduced cooling capacity, it is desirable to choose such that the pull-out container, for example, in the form of a drawer of the Desk, you can install the package with drinks vertically. The scale height can be taken common form of packaging, such as packaging in Tetra-Pak, standard bottle 0,7 liter or plastic bottle 1.5 or 2 liters.

As a rule, in the lower part of the inner cavity of the refrigerator has a curvature, the outer side of which is a refrigerating machine. In the proposed fridge this curvature is preferably moved away from the cut or having reduced cooling area of the evaporator, that can be used for storage of packaged drinks section of the bottom of the inner cavity near the dish.

In order to properly measure the degree of cooling zones for the storage of drinks, in the internal cavity may be provided by a partition at least partially lying in the same plane with the edge zone of reduced cooling capacity. This partition, if not completely interrupts the transfer of heat through the your convection between the storage area for the drinks and the rest of the internal cavity, then, in any case, such limits heat transfer. This partition can be, for example, formed by a shelf with two sections located on different horizontal levels and connected by a vertical wall. It is also possible to partition consisting of a vertical intermediate walls and shelves, running from the intermediate wall to the side wall of the internal cavity.

As the evaporator in the refrigerator preferably used evaporator type "Coldwall".

A brief list of figures

Other characteristics and advantages of the invention ensue from the following description of examples of implementation with reference to the accompanying drawings. The drawings represent:

figure 1 is a perspective representation proposed in the invention of the refrigerator with the door open;

2 and 3 - views from the front of the refrigerator of figure 1 removed from the door;

4 is a front view of the preferred option, similar to figure 2;

figure 5-7 - different examples of performance evaporators for the refrigerator of figure 1-3;

Fig - perspective image of the inside wall of the refrigerator for one of the variants of Fig 1;

Fig.9 is a perspective depiction of the lower part of the inner wall of Fig.7 with pull-out container and a partition in accordance with a first variant;

figure 10 is a view of the inner wall of Fig with pull-out container and negotiating odkai in accordance with the second option.

The implementation of the invention

Figure 1 shows the perspective representation of the refrigerator 1 with an open door 6, which implements the invention. The insulating housing 2 of the refrigerator consists of a solid outer wall, for example of sheet steel, seamless plastic inner wall 3 and a layer of foam filling the space between the inner wall 3 and outer wall. In the lower right corner in the inner wall 3 is visible bump 4 approximately rectangular shape, which is a refrigerating machine. Connected to the refrigerating machine evaporator type "Coldwall" is located on the rear wall 5 of the casing between the inner wall 3 and the foam layer and the figure is not visible; partition separating the inner cavity on the upper and lower areas, the figure is omitted.

The shape of the evaporator shown by the dashed outline in figure 2, which shows a front view of the refrigerator 1 is removed from the door 6. The evaporator 7 is rectangular in shape, extending from the upper edge of the rear wall 5 to the upper edge of dish 4 and across the entire width of the rear wall 5.

A horizontal shelf 27 divides the inner space of the refrigerator 1 from the upper zone 31, related to which part of the back wall 5 is almost completely occupied by the evaporator, and the lower zone 32 in which the rear wall 5 is only partially occupied by the evaporator. In the honeycomb arrangement of the shelf 27 is selected so that to the lower zone was vertically set the bottle 14 with a drink.

As shown in figure 3, the partition need not occupy the entire width of the internal cavity; it may be formed, as shown here, from a vertical intermediate wall 26 and a shelf extending from the side wall just before the partition 26.

Figure 4 same as figure 2 and 3 shows the view of the refrigerator in the front in the preferred embodiment. The partition between the upper and lower area here omitted to more clearly show the shape of the evaporator 7. He has basically the shape of a rectangle, which is in the upper zone of the refrigerator fills the back wall 5 over the entire width, and in the lower left corner has a rectangular cutout 8. A rectangular area 9 of the rear wall 5, which does not come to the evaporator 7, is limited by the edges 10, 11 of the recess 8, the side wall 12 of dish 4 and side wall 13 of the housing 2. The height of the section 9 corresponds approximately to the bottle with drink 14, the outline of which is depicted in the figure.

Figure 5 shows a front view of the evaporator 7 in figure 4; it is made of metal plate 15, which is designed for sticking on the inner wall 3, and a pipe 16 with the refrigerant, in the form of coil is turned on to a layer of foam in the rear side of the metal plate 15.

Figure 6 depicts a variant of the evaporator 7 in which the metal plate is exactly rectangular shape without any neckline. However, the pipeline 16 of the refrigerant does not come in a limited dashed line plot 17 in the lower left corner. Therefore, this section 17, though, and is cooled by heat conduction of the metal plate 15, but has only a slight cooling capacity in comparison with the rest of the surface of the evaporator.

In a variant of the evaporator 7, shown in Fig.7, while the pipeline 16 refrigerant and sets in section 17, however, the density of the pipe 16, which can be defined as the length of the tubes per unit area, on a plot of 17 is less than the remaining surface of the metal plate 15, so that this embodiment of the evaporator cooling capacity at site 17 is smaller than the rest of the surface of the evaporator.

On Fig shows a perspective representation of the inner wall 3 of the proposed in the invention of the refrigerator according to option 1. In this embodiment, the curvature is 4 extended mainly on the depth of the internal cavity, thereby minimising the need for placement of the refrigeration machine height of dish 4. The outline of the evaporator 7 and is shown here by the dashed line in the rear wall 5.

Figure 9 shows the lower part of the inner wall 3 of Fig, and at the bottom of the inner cavity before section 9 of the wall 5, on which there is no evaporator, on telescopic rails 19 has a drawer 18. Advanced is in the box 18, you can easily get a container of drink, standing in the drawer 18 directly at the rear wall 5, without having to pull out for other vessels.

Shelf 20 of the two sections 22, 23, connected by a vertical wall 21 separates the area 24 for storing drinks, which together with the volume between the upper side of dish 4 and section 23 of the shelf forms the lower zone 32 of the internal cavity from the overlying upper zone 31 of the internal cavity. The upper section 22 of the shelf is located approximately at the height (closed in the figure) of the horizontal flange 10 of the recess 8, the wall 21 lies in the same plane with the side wall 12 of dish 4 and the vertical edge 11 of the recess 8.

Shelf 20 comes close to the rear wall 5, so that the density in other areas of the plate forming sections 22, 23 of the shelf and the wall 21, while limiting heat transfer due to convection of air between the area 24 for storing drinks or, respectively, the lower area 32, and the upper area 31 of the inner cavity, but do not exclude such a heat exchange fully. What should be the cross section of the passages between the area 24 for storing drinks and upper area 31, depends in a particular case from the desired values of temperature and insulation, as well as whether the evaporator as shown in figure 5, i.e. not producing cold in the area 24 for storing drinks, is whether the evaporator at 6 or 7, the cooling capacity of which in the area 24 for storing drinks only reduced.

In the variant depicted in figure 10, the dividing wall between the area 24 for storing drinks and the rest of the internal cavity of the refrigerator is formed by a vertical partition 26, which is located in the same plane with the side wall 12 of dish 4 and the vertical edge 11 of the recess 8, and a shelf 27 which extends from the upper end of the partition 26 is approximately the height of the horizontal flange 10 of the recess 8 to the right side wall 13 of the housing 2. And in this case, the dividing wall for the foregoing reasons not comes close to the rear wall 5. In the partition 26 from the opposite side from the area 24 for storing drinks there are a number of rails, which together with the complementary rails 28 on the side wall 30 of the housing 2 can be used as a support for a shelf 29 of smaller width.

Over an area 24 for storing drinks, of course, can be placed across the entire width of the internal cavity of the other, nesovershennye shelves.

1. Refrigerator with an internal cavity bounded by the insulating housing (2) and a door (6)and located on the wall (5) of the housing (2) plate evaporator (7) for cooling the internal cavity, occupying at least part of the wall (5)belonging to the bottom in the operating position of the refrigerator the inside on the spine, moreover, the cooling capacity of the evaporator (7) in part related to the upper and, respectively, to the lower zone (31, 32) are designed so that in the upper zone (31) of the inner cavity achieves a lower temperature than in the lower zone (32)and the evaporator (7) has a generally rectangular shape, one corner of which related to the lower zone (32) of the side wall (5) has an aperture (8), or the evaporator (7) is related to the lower zone (32) wall (5) has a section (17) with reduced cooling capacity in comparison with the rest of the surface of the evaporator (7), and before plot (8, 17) in the inner cavity of the refrigerator (1) placed shelf (18).

2. The refrigerator according to claim 1, characterized in that the internal cavity has a partition, which divides the inner cavity in the upper zone (31) and lower zone (32).

3. The refrigerator according to claim 1, characterized in that part of the wall (5), related to the lower zone (32), to a lesser extent, covered by the evaporator (7) than the portion relating to the upper zone (31).

4. The refrigerator according to claim 1, characterized in that the section (17) with decreased cooling power density of the refrigerant smaller than the rest of the surface of the evaporator.

5. A refrigerator according to one of claims 1 to 4, characterized in that the section (8, 17) has the form of a rectangle.

6. A refrigerator according to one of claims 1 to 4, Otley is audica fact, what is the height of the plot (8) are chosen so that the packaged beverage can be put in a drawer (18) vertically.

7. A refrigerator according to one of claims 1 to 4, characterized in that the internal cavity has a curvature (4)designed for the placement of the refrigeration machine.

8. The refrigerator according to claim 7, characterized in that the section (8) of the evaporator (7) is displaced in the direction of relative curvature (4).

9. The refrigerator according to claim 2, characterized in that the wall (20, 26, 27) lies in the same plane, at least part of the edges (10, 11) region (8) with reduced cooling capacity.

10. The refrigerator according to claim 2 or 9, characterized in that the partition wall is formed by a shelf (20) with two sections (22, 23)located at different levels horizontally and connected by a vertical wall (21).



 

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