JP3649827B2 - refrigerator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To suppress a reduction in an effective volume of an indoor due to a damper unit. SOLUTION: The refrigerator is partitioned by a partition wall in a body and hence constituted by a cold storage chamber 9 and a deep freezing chamber 10. Cold air cooled by a cooler is distributed and supplied into the storage chamber 9 and the freezing chamber 10 by a blower 16. A molded heat insulator 7 formed with a discharge passage 18 for guiding the cold air to the chamber 9 and a suction passage for guiding return cold air from the chamber 9 is installed in the wall. A damper 20 unit is contained in the discharge passage of the insulator 7.

Description

[0001]
BACKGROUND OF THE INVENTION
With the present invention partitions the heat-insulating main body in the partition wall, to the refrigerating compartment and dispensing supplies refrigerator to freezer compartment at the cold air from the cooler blower.
[0002]
[Prior art]
In recent years, refrigerators are often used in which a refrigerator room having a high frequency of use is placed on the uppermost part where the user can easily see the stored items, and the freezer room is disposed below the refrigerator room. Usually, the cooler is placed in the cooling room located at the back of the freezing room, so that it is possible to supply cold air to the entire refrigerating room, a duct is provided from the cooling room to the back of the refrigerating room via a damper device. It was.
[0003]
[Problems to be solved by the invention]
However, since the conventional refrigerator damper device is provided at the back of the refrigerator compartment, there is a problem that causes a reduction in the internal volume.
[0004]
The present invention solves the above problem, and a discharge passage and a suction passage are provided in a partition wall provided between the refrigerator compartment and the freezer compartment, and a damper device is accommodated in the discharge passage. The object is to provide a refrigerator.
[0005]
[Means for Solving the Problems]
According to the first aspect of the present invention, the upper and lower refrigeration chambers are formed by dividing the heat insulating box body vertically by the partition walls, and the cold air cooled by the cooler is cooled by the blower by the blowers. In the refrigerator to be distributed and supplied to the freezer compartment, a heat insulating material in which a discharge passage for guiding cold air to the refrigerating chamber and a suction passage for guiding return cold air from the refrigerating chamber is installed in the partition wall. A damper device is accommodated in the discharge passage of the heat insulating material so that the effective volume in the refrigerator compartment can be prevented from being reduced.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
The present invention will be described below with reference to the drawings.
[0007]
FIG. 1 is a sectional view of a refrigerator showing an embodiment of the present invention. FIG. 2 is a cutaway perspective view of a main part of the refrigerator compartment of the present invention. FIG. 3 is a cross-sectional view of an essential part of the heat insulating box according to the present invention. FIG. 4 is an enlarged view of a main part of the damper device of the present invention.
[0008]
Reference numeral 1 denotes a refrigerator. This refrigerator has a steel plate outer box 2 that opens forward, a hard synthetic resin inner box 3 that opens in the outer box and is installed in a space, and both boxes 2, A main body 5 is composed of a polyurethane foam heat insulating material 4 filled between the three by an in-situ foaming method. The interior of the main body 5 is formed integrally with the inner box 3, and is partitioned vertically by a partition wall 8 in which molded heat insulating materials 6 and 7 are housed, a refrigerator compartment 9 on the upper side, and a freezer compartment on the lower side. 10 is formed. The front opening of the refrigerator compartment 9 is closed by a door 11 and the front opening of the freezer compartment 10 is closed by a drawer door 12 so as to be freely opened and closed.
[0009]
A cooling chamber 14 is defined by a partition plate 13 at the back of the freezing chamber 10, and a cooler 15 is disposed in the cooling chamber 14. A blower 16 is provided above the cooler, a freezer compartment discharge port 17 is provided in the upper part and the central part of the partition plate 13, and a freezer compartment suction port 17A is provided in the lower part.
[0010]
The rear heat insulating material 7 in the partition wall 8 is formed of foamed polystyrene or the like, and the discharge passage 18 for guiding the cold air cooled by the cooler to the refrigerating chamber 9 by the blower 16 and the return cooling from the refrigerating chamber. A suction passage 19 for guiding is formed.
[0011]
A damper device 20 is accommodated in the discharge passage 18 of the molded heat insulating material 7. The damper device 20 includes a rectangular case 21 whose upper and lower surfaces are open, a damper 22 rotatably provided in the case, a stepping motor or a DC motor that is attached to the outer surface of the case 21 and rotates the damper 22. And a motor 23 composed of
[0012]
A flange 24 that spreads outward is formed on the periphery of the upper opening of the case 21, and seal portions 25 and 26 that contact the damper 22 are formed inside the case 21.
[0013]
The damper device 20 blocks cold air supplied from the cooling chamber 14 to the refrigerating chamber 9 in a state where the damper 22 is in contact with the seal portions 25 and 26.
[0014]
In the damper device configured as described above, the cold air cooled by the cooler 15 is blown out from the freezer discharge port 17 into the freezer 10 by the blower 16. And after circulating through the freezer compartment 10 and cooling, cold air returns to the lower part in the cooling chamber 14 from the lower freezer inlet 17A. Thereby, the freezer compartment 10 is maintained at a predetermined freezing temperature (−20 ° C.). Further, a part of the cold air blown out from the blower 16 flows into the discharge passage 18 of the molded heat insulating material 7 and the case of the damper device 20. After passing through 21, it flows into the refrigerator compartment back duct 27. And after raising the inside of this duct, it blows out in the refrigerator compartment 9 from the discharge port 28 for refrigerator compartments.
The motor 23 of the damper device 20 is controlled by a control device (not shown) provided with a sensor for detecting the temperature in the refrigerating chamber 9, and adjusts the amount of cold air flowing through the case 21 by rotating the damper 22. Thus, the supply of cold air to the refrigerator compartment back duct 27 is controlled, and the temperature in the refrigerator compartment 9 is maintained at a predetermined refrigerator temperature (+ 5 ° C.).
[0015]
The cold air circulated in the refrigerator compartment 9 is supplied into the vegetable compartment 29 from the suction passage 19 of the molded heat insulating material 7. Then, after circulating in the vegetable compartment 29 and indirectly cooling the inside of the container (not shown), the cold air returns to the lower part in the cooling chamber 14 through the vegetable compartment return duct 31 in the partition wall 30. Thereby, the vegetables in the container are kept at a temperature of about + 8 ° C. to + 10 ° C. in a state where drying is prevented.
[0016]
As described above, in the present invention, the damper device 20 is provided in the discharge passage 18 formed in the molded heat insulating material 7 at the rear portion in the partition wall 8, so that the effective volume in the refrigerator compartment 9 is narrowed by the damper device as in the prior art. It will not be done. Further, since the damper device 20 is housed in the discharge passage 18, it is not necessary to provide a sealing material for preventing the cool air from leaking into the suction passage 19 forming the return passage from the duct device, and the flow of the cool air is also simple. Therefore, the supply amount can be increased.
[0017]
【The invention's effect】
According to the first aspect of the present invention, the upper refrigerator compartment and the lower freezer compartment are configured by dividing the heat insulation box body vertically by the partition walls, and the cool air cooled by the cooler is formed by the blower. In the refrigerator that distributes and supplies the refrigerator compartment and the freezer compartment, a heat insulating material is provided in the partition wall that forms a discharge passage for guiding cold air to the refrigerator compartment and a suction passage for guiding the return cold air from the refrigerator compartment. Since the damper device is accommodated in the discharge passage of the heat insulating material, it is possible to prevent the effective volume in the refrigerator compartment from being reduced. And since a damper apparatus is accommodated in the discharge passage of the shaping | molding heat insulating material arrange | positioned in a partition wall, the air path around a damper apparatus can be simplified.
[Brief description of the drawings]
FIG. 1 is a sectional view of a refrigerator showing an embodiment of the present invention.
FIG. 2 is a cutaway perspective view of a main part of a refrigerator compartment according to the present invention.
FIG. 3 is a cross-sectional view of a main part of the heat insulation box according to the present invention.
FIG. 4 is an enlarged view of a main part of the damper device according to the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Refrigerator 4 Heat insulating material 5 Main body 7 Molding heat insulating material 9 Refrigeration room 10 Freezing room 15 Cooler 16 Blower 18 Discharge passage 19 Suction passage 20 Damper device

Claims (1)

By dividing the inside of the heat insulation box vertically by the partition wall (8), an upper refrigerator compartment (9) and a lower freezer compartment (10) are formed, and the cold air cooled by the cooler (15) is formed. In the refrigerator that distributes and supplies the refrigerator compartment (9) and the freezer compartment (10) by the blower (16),
A heat insulating material in which a discharge passage (18) for guiding the cold air to the refrigerator compartment (9) and a suction passage (19) for guiding the return cold air from the refrigerator compartment (9) are formed in the partition wall. A refrigerator characterized in that (7) is installed, and a damper device (20) is housed in the discharge passage (18) of the heat insulating material (7).

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