JP2008039296A - refrigerator - Google Patents

Abstract

The present invention enables cooling in a well-balanced manner in the entire refrigerator compartment by combining direct cooling and indirect cooling.
In a refrigerator including a refrigerator compartment (3) provided with a door pocket (15) inside an open / close door (13) and a refrigerator (17) for the refrigerator compartment, both the inner and outer sides of the refrigerator (17) are cooling surfaces. The sheet-like cooling plate 19 forms a cold air circulation passage 21 that also serves as the inner wall surface of the refrigerator compartment 3, and the inside of the box is directly cooled by radiant heat from the sheet-like cooling plate 19. On the other hand, in the cold air circulation passage 21, a cold air circulation fan 25, an outlet 29 for blowing cold air to the uppermost door pocket 15, and a cold air return port 31 for returning the cold air passing through the interior to the cold air circulation passage 21. And the combination cooling is performed in which the uppermost door pocket 15 region is indirectly cooled by the cold air blown out from the air outlet 29.
[Selection] Figure 1

Description

  The present invention relates to a refrigerator that cools a refrigerator compartment with a refrigerator dedicated to the refrigerator compartment.

In general, in refrigerators equipped with a refrigerator compartment, a vegetable compartment, and a freezer compartment, the refrigerator inside the refrigerator is in a minus temperature zone, in addition to the cooler that cools the freezer compartment, and a refrigerator dedicated to the refrigerator compartment that cools the refrigerator compartment There is something with. The outline is that a cooling passage is formed at the rear of the refrigerating room, and a cooling device and a blower outlet dedicated to the refrigerating room are provided in the cooling passage, respectively. It has a structure that blows out.
JP 2005-345065 A

  The cold air exchanged in the refrigerator dedicated to the refrigerator compartment blows out the cold air from the outlet toward the inside of the refrigerator compartment, and the cold air is blown out from the rear to the front. For this reason, the uppermost door pocket area provided in the open / close door is a blind spot for cooling inside the cabinet where it is difficult for cold air to reach, and there is a face that makes it difficult to obtain uniform cooling of the whole inside of the cabinet, and from the outlet Indirect cooling where the cold air is blown out directly causes the problem of quick drying of the entire interior.

  In view of this, the present invention provides a refrigerator in which balanced cooling of the entire refrigerator interior can be obtained by combining indirect cooling of the open / close door region and direct cooling of the interior region. The purpose is that.

  In order to achieve the above object, the present invention comprises a refrigerating room provided with a door pocket inside an open / close door, and a refrigerating room cooler for cooling the refrigerating room, Both the inner and outer sides are formed into a sheet-like cooling plate that serves as a cooling surface, and the sheet-like cooling plate forms a cold air circulation passage that also serves as the inner wall surface of the refrigeration chamber. And an air outlet that blows out cold air to the uppermost door pocket and a cold air return port through which the cold air that has passed through the interior returns to the cold air circulation passage.

  ADVANTAGE OF THE INVENTION According to this invention, it becomes possible to blow off cold air from a blower outlet with respect to the uppermost door pocket provided in the opening / closing door, and the blind spot area | region of a door pocket can be eliminated.

  On the other hand, the inside of the refrigerator compartment can be directly cooled by radiant heat from a planar cooling plate that also serves as the inner wall surface of the refrigerator compartment. As a result, it is possible to perform well-balanced interior cooling with little influence of drying by combination cooling.

  Hereinafter, embodiments of the present invention will be specifically described with reference to FIGS. 1 to 3.

  FIG. 1: has shown the general | schematic cutting | disconnection side view of the whole refrigerator concerning this invention.

  The refrigerator 1 is arranged in the order of the refrigerator compartment 3, the freezer compartment 5, and the vegetable compartment 7 from above, and is made in an independent cabinet by the partition walls 9 and 11.

  The refrigerating chamber 3 allows food and the like to be taken in and out by opening the door 13 with a hinge (not shown) as a fulcrum. Inside the open / close door 13, there is provided a door pocket 15 in which containers such as cans, bottles and the like that are not adversely affected even by indirect cooling in which cold air is directly applied to the upper, middle, and lower stages.

  A cold air circulation passage 21 that also serves as the inner wall surface of the refrigerator compartment 3 is formed by a planar cooling plate 19 that serves as the first cooler 17 for the refrigerator compartment at the rear of the refrigerator compartment 3.

  As shown in FIG. 2, the sheet cooling plate 19 is provided with a refrigerant pipe 23 through which a refrigerant flows between the plates formed in a sheet shape, and both the inner side 19a (inner side) and the outer side 19b (passage side) are faces. It becomes the shape used as a cooling surface.

  Therefore, the air passes through the cold air circulation passage 21 formed by the planar cooling plate 19 so that heat exchange is performed, and the air in the passage 21 becomes cold air. Cooling is performed directly by radiant heat.

  The cold air circulation passage 21 has a fan 25 for running wind and is formed in a shape that continues across the ceiling area a and the rear wall area b of the refrigerator compartment 3. Of these, the planar cooling surface is the rear wall region b formed by the planar cooling plate 19, which is the direct cooling region described above.

  The ceiling region a of the cool air circulation passage 21 is formed by a duct panel 27, and the end opening is a blowout port 29 that blows cool air toward the uppermost door pocket 15. The cold air blown out from the air outlet 29 passes through the middle and lower door pockets 15 as shown by the arrows in FIG. 1 and repeats the circulation returning from the cold air return port 31 to the cold air circulation passage 21 again.

  On the other hand, the freezer compartment 5 is composed of first and second freezer compartments 5a and 5b, and is a drawer type in which the storage container 5c can be pulled out. Each fan 35 is provided. As shown in FIG. 3, the second cooler 33 is arranged in parallel with the first cooler 17 via a throttle device 39 through which refrigerant flows simultaneously by a three-way valve 37 and is provided in the machine chamber 41. The refrigerator 43 and the condenser 45 constitute a refrigeration cycle in which the refrigerant discharged from the compressor 43 flows as shown by arrows. Therefore, after the cold air exchanged in the second cooler 33 is blown out from the outlets 47 to the first and second freezing chambers 5a and 5b by the fan 35, the second cooler 33 is returned from the return port 49 again. The circulation to return to is repeated. On the other hand, the vegetable compartment 7 is a drawer type in which the storage container 7a can be withdrawn, and cooling of the inside is performed by a part of the cold air blown into the second freezing compartment 5b. .

  According to the refrigerator 1 configured as described above, the cold air heat-exchanged by the planar cooling plate 19 serving as the cooler 17 when the air passes through the cold air circulation passage 21 is provided to the open / close door 13 from the air outlet 29. The door pocket region is cooled by blowing toward the uppermost door pocket 15 and indirectly cooling with cold air.

  On the other hand, the inside of the refrigerator compartment 3 can be cooled in a well-balanced manner by combined cooling in which the inside of the refrigerator is cooled by direct cooling by radiant heat from the planar cooling plate 19.

The outline cutaway view of the refrigerator concerning the present invention. The schematic explanatory drawing which showed a part of cooler formed with the planar cooling plate. Refrigeration cycle diagram.

Explanation of symbols

DESCRIPTION OF SYMBOLS 3 Refrigerating room 5 Freezing room 7 Vegetable room 13 Opening / closing door 15 Door pocket 17 Cooler 19 Planar cooling surface 21 Cold air circulation passage 25 Fan 29 Outlet 31 Cold air return port

Claims (1)

A refrigerating room provided with a door pocket inside the open / close door, and a refrigerator for the refrigerating room for cooling the refrigerating room,
The cooler is formed in a planar cooling plate whose inner and outer surfaces serve as cooling surfaces, and the planar cooling plate forms a cold air circulation passage that also serves as an inner wall surface of the refrigerator compartment, A refrigerator comprising a fan for circulating cold air, an air outlet for blowing cold air to the uppermost door pocket, and a cold air return port for returning the cold air passing through the interior to the cold air circulation passage.

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