JPH1114226A - Refrigerator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To achieve a higher energy saving effect by making chilled air in a container flow downward along the internal surface of an uneven wall formed on the internal of a wall of the container facing a door while the chilled air flowing downward flows out at an opening part formed on a bottom part of the container to efficiently cool articles in the container. SOLUTION: In a container 34 of a refrigerator, the internal surface of a wall 38 facing a door 31 is formed uneven and a bottom part 70 linked to the uneven wall 38 is built at a double level below a bottom part 71 linked to walls other than the uneven wall 38 so that the bottom part 70 is overlapped L by a necessary length parallel with the bottom part 71. An opening part 74 is formed between the bottom part 70 and the bottom part 71, a weir 73 and a weir 72 are provided at one end of the bottom part 71 and a plurality of ribs are provided between the bottom part 70 and the bottom part 71. Even when an article is placed in the container 34, the chilled air flows downward along the internal surface of the uneven wall 38 of the container 34 facing the door 31, then out from the opening part 74 and further in the direction opposite to the door 31 facing the container 34.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigerator having a high energy saving effect.

[0002]

2. Description of the Related Art As shown in FIG. 8, for example, a conventional refrigerator 1 is provided with a plurality of refrigeration compartments 2, a freezing compartment 3, and a vegetable compartment 4 in that order from the top. 2, a door 21 (swing-out door), a freezing room 3 a door 31 (pull-out door) and a door 32 (pull-out door), a vegetable compartment 4
Is provided with a door 41 (pull-out type door). The freezing compartment 3 is provided with containers 34 and 35, in which ice made frozen food and frozen food are put in the container 34, and frozen food and the like are put in the container 35. The vegetable compartment 4 is also provided with a container 43.

[0003] Door packings 22, 39, 33, and 42 are respectively provided over the entire periphery at the end of the inner surface of each door.
Receiving part 11 (the upper end of the box of refrigerator 1) forming the receiving surface of each door packing, receiving part 12 (the end of the partition separating compartments 2 and 3), and receiving part 13 (door 31) And the receiving part of the door 32), the receiving part 14 (the end of the partition separating the freezer compartment 3 and the vegetable compartment 4), the receiving part 15 (the bottom end of the box of the refrigerator 1), etc. Thus, the cool air is prevented from leaking to the outside, and the cool air is circulated in the order of, for example, the freezing room 3, the refrigerating room 2, the vegetable room 4, etc., so that each room is maintained at an optimum temperature. 51 is a compressor for compressing the refrigerant, 52 is an evaporator for evaporating the refrigerant and exchanging heat with the air in the refrigerator to cool it, and 53 is a fan for circulating the cool air cooled by the evaporator 52.

FIG. 9 shows a refrigeration cycle of the refrigerator 1.
The refrigerant compressed by the compressor 51 first flows to the dip condenser 54 used for evaporating the drain water, then flows to the main condenser 55 and then flows upward, as indicated by the arrow, as shown by the arrow. After passing through a crest condenser 56 for preventing sticking, it flows through conduits 60 provided at receiving portions 11 to 16 at the open end of the outer box, and evaporates and cools by an evaporator 52 through a capillary tube 57, and then compressed again. The compression is performed by the device 51. In this way, the conduit 60 embedded in the frontage of the main body is kept at about 5
The temperature is raised by about 7 ° C. to dissipate heat to prevent the occurrence of dew condensation on the surfaces of the receiving portions 11 to 16 and the like.

[0005]

However, the flow of cool air in the containers 34 and 35 provided in the conventional refrigerator 1 is as shown by an arrow in the case of the container 34, for example.
It flows upward along the inner surface of the wall 38 of the container 34 facing the door 31, hits the heated receiving portion 12, passes through the cool air hole 36 provided at the upper end of the container 34, and faces downward, and the door 31 and the wall 38 and heated receiver 13 and container 3
4, the cold air is heated because it flows between the bottoms, and the energy efficiency is reduced. In the case 35, the cool air flows through the cool air holes 37 in the same manner as in the case of the case 34, so that the cool air is heated and the energy efficiency is reduced. The purpose of the present invention is
An object of the present invention is to provide a refrigerator having an improved energy saving effect by preventing cold air from flowing between a door and a container, and substantially preventing cold air in the container from hitting a heated receiving portion.

[0006]

Means for Solving the Problems The inventors of the present invention have conducted intensive studies to solve the above-mentioned problems of the prior art, and as a result, a cold air hole is formed at the upper end of the container so that the cool air in the container does not flow between the door and the container. In addition, the inner surface of the container wall facing the door is formed in an uneven shape, and cool air in the container flows downward along the inner surface of the uneven wall, and the cool air flowing downward. The present invention has been found to be able to provide a refrigerator with high energy saving effect by allowing the water to flow out from a specific opening at the bottom of the container in a specific direction.

[0007] That is, the invention of claim 1 of the present invention is a refrigerator in which containers are arranged in a plurality of rooms provided with doors on the front surface, and the containers have an inner surface of a wall facing the doors formed in an uneven shape. And an opening is provided between a bottom portion connected to the uneven wall of the container and a bottom portion connected to a wall other than the uneven wall of the container, and cool air in the container is formed in the uneven shape. After flowing downward along the inner surface of the wall, it flows out of the opening and goes in the opposite direction to the door facing the container, or does not go downward and near the door opening. It is a refrigerator.

According to a second aspect of the present invention, in the refrigerator according to the first aspect, an upward weir is provided at one of the bottoms or at an end forming both openings.
A liquid such as water collected at the bottom is prevented from flowing downward from the opening.

According to a third aspect of the present invention, in the refrigerator according to the first or second aspect, the bottom connected to the uneven wall is stepped lower than the bottom connected to the wall other than the uneven wall. And a bottom portion connected to the uneven wall is overlapped by a necessary length in parallel with a bottom portion connected to a wall other than the uneven wall.

According to a fourth aspect of the present invention, in the refrigerator according to any one of the first to third aspects, both the inner surface and the outer surface of the wall of the container facing the door are formed in an uneven shape. .

According to a fifth aspect of the present invention, in the refrigerator according to any one of the first to fourth aspects, a rib is provided on one or both of the bottom surfaces.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. In FIGS. 1 to 7, the parts indicated by the same reference numerals as those in FIGS.
A portion having the same function as the portion having the same reference numeral described in FIG.

In FIG. 1, a refrigerator 1 has doors 21 and 3.
Door packings 22 provided on each of 1, 32, 41,
Receiving portions 11 to 15 forming receiving surfaces of 39, 33, 42
And the door packing are in close contact with each other to prevent cold air from leaking to the outside, and one end is fixed to a portion of the heated receiving portion in the room, and the other end contacts a part of the inner surface of each door. Or the other end is brought into contact with a part of the inner surface of each door, and the second packings 23, 30, 40, and 45 are provided in contact with one ends of the containers 34, 35, and 43, respectively.
The cold air in the room is prevented from hitting the heated receiving portions 11 to 15. The second packing 23 has one end fixed to a place in the room of the receiving part 11 and the receiving part 12, the other end of which is in contact with a part of the inner surface of the door 21, and the second packing 30 is One end is fixed to a place in the room of the receiving portion 12 and the receiving portion 13, and the other end contacts a part of the inner surface of the door 31 and also contacts one end of the container 34. The second packing 40 and the second packing 45 are
It is the same as the second packing 30.

FIG. 2 is an explanatory view showing a state where each door of the refrigerator 1 shown in FIG. 1 is opened or pulled out. The second packings 23, 30, 40, and 45 are provided over the entire periphery of each door opening.

FIG. 3 is an enlarged sectional explanatory view of a main part of FIG. 1A. FIG. 4 is an explanatory diagram of the container 34 of FIG. In FIG. 3, one end of the second packing 30 is fixed at a position where the front end enters the room from the receiving surface 12 </ b> A of the receiving portion 12 whose temperature is heated. It is provided in contact with one end 34A or at a maximum distance of 5 mm. Thus, the cold air in the room is substantially prevented from hitting the heated distal end portion of the receiving portion 12. As shown in FIG. 4, in this container 34, an inner surface of a wall 38 facing the door 31 is formed in an uneven shape. The bottom 70 connected to the uneven wall 38 of the container 34 is provided stepwise below the bottom 71 connected to a wall other than the uneven wall 38, and the bottom 70 is required to be parallel to the bottom 71. They overlap by a length (indicated by L in FIG. 3). Opening 7 between bottom 70 and bottom 71
4 are formed. 73 is a weir provided at one end of the bottom 71, and 72 is a weir provided at one end of the bottom 70. A plurality of ribs 75 are provided between the bottom 70 and the bottom 71.

With the above-described structure, the passage of the cool air is ensured even if an article is put in the container 34 because the uneven wall 38 is provided, and the cool air is supplied to the door 3 as shown by the arrow.
1 can flow downward along the inner surface of the uneven wall 38 of the container 34, cool the goods efficiently, and cool air does not flow between the door 31 and the container 34. Further, the cool air does not hit the tip of the receiving portion 12 heated by the action of the second packing 30. The cool air flowing downward along the inner surface of the uneven wall 38 flows out of the opening 74 and flows in a direction opposite to the door 31 facing the container 34.
The bottom 70 is overlapped by the required length (L) in parallel with the bottom 71 so that cold air does not hit the front end of the heated receiving portion 13. Thus, the energy saving effect can be improved.

Since the bottom 71 has a weir 73 at one end, even if liquid such as water or juice flows into the bottom 71, the liquid can be prevented from flowing downward from the opening 74. Since a weir 72 is also provided at one end of the bottom 70, even if a liquid such as water or juice flows into the bottom 70, the liquid flows through the opening 74.
Can be prevented from flowing downward.

FIG. 5 is an enlarged cross-sectional explanatory view of a main part BB of FIG. As shown in FIG. 5, the second packing 30 has the receiving portion 16 (the distal end portion of the side wall of the refrigerator 1) whose distal end portion is heated.
One end is fixed to a position entering the room from the receiving surface 16A, and the other end is in contact with a rib 34C formed at one end of the side wall 34B of the container 34, or at most 5 mm.
It is kept apart. Thus, the cold air in the room is substantially prevented from hitting the front end of the heated receiving portion 16.

FIGS. 6A and 6B show examples of other containers used in the present invention. (A) is an explanatory sectional view of the container, and (B) is an enlarged explanatory view of a main part of the container. An inner surface of a wall 38 facing the door 31 of the refrigerator (not shown) is formed in an uneven shape, and a bottom 70 having an uneven rib 76 on an upper surface connected to the uneven wall 38 of the container 34; The opening 7 is provided between a bottom 71 having an uneven rib 77 on the upper surface connected to a wall other than the uneven wall 38.
4 are provided. An aluminum plate 78 for placing items on the ribs 76 and the ribs 77 is placed. The cool air in the container 34 can flow downward along the inner surface of the uneven wall 38 as indicated by the arrow even if many items are placed on the plate 78, and after flowing downward, It flows out of the opening 74 and goes downward, and the door 31 (not shown)
In the vicinity of the opening. Cold air at bottom 7
Flow between the plurality of ribs 76 between the plate 0 and the plate 78, part of which enters between the plurality of ribs 77 between the bottom 71 and the plate 78, allows for efficient placement of items placed on the plate 78. Can cool well. The bottom 70 extends in a direction opposite to that of the door 31 (not shown) by a necessary length (l), so that cold air does not hit the front end of the heated receiving portion 13 (not shown). Thus, the energy saving effect can be improved.

FIG. 7 shows an example of another container used in the present invention. A wall 38 of the container 34 facing the refrigerator door 31 (not shown) is formed into an irregular corrugated shape on both the inner surface and the outer surface of the wall 38. The uneven wall 38 of the container 34
The bottom 70 connected to the bottom wall is provided at a step lower than the bottom 71 connected to a wall other than the uneven wall 38, and the bottom 70 has a required length parallel to the bottom 71 (L in FIG. 7). ) Are overlapped. Bottom 70
An opening 74 is formed between the base 71 and the bottom 71. 73
Is a weir provided at one end of the bottom 71, and the bottom 70 and the bottom 7
1, a rib 79 is provided, and a weir 72 is formed below the rib 79. Arrows indicate the flow of cold air. With the above-described configuration, it is possible to efficiently cool an article and improve an energy saving effect.

As a result of a test using a household refrigerator [SR-45SK, manufactured by Sanyo Electric Co., Ltd.] having the configuration shown in FIGS. 1 to 5, an energy saving effect of about 1 to 2 (kWH / month) was obtained. It was recognized that.

Since the present invention is not limited to the above embodiment, various modifications can be made without departing from the spirit of the appended claims.

[0023]

The refrigerator according to the present invention has a design in which no cool air hole is provided at the upper end of the container so that the cool air in the container does not flow between the door and the container, and the inner surface of the container wall facing the door. Is formed in an uneven shape, cool air in the container flows downward along the inner surface of the uneven wall, and cool air flowing downward flows out in a specific direction from a specific opening formed in the bottom of the container. By doing so, the articles in the container can be cooled efficiently and a high energy saving effect can be achieved. Further, since a space for circulating cool air between the container and the door is not required, the size of the container can be increased, and the effective internal volume can be increased.

[Brief description of the drawings]

FIG. 1 is an explanatory sectional view of a refrigerator according to the present invention.

FIG. 2 is an explanatory view showing a state where a door of the refrigerator of the present invention shown in FIG. 1 is opened or pulled out.

FIG. 3 is an enlarged sectional explanatory view of a main part of A in FIG. 1;

FIG. 4 is an explanatory view of the container shown in FIG.

FIG. 5 is an enlarged sectional explanatory view of a main part BB of FIG. 1;

FIG. 6 (A) is an explanatory sectional view illustrating another example of the container used in the present invention, and FIG. 6 (B) is an enlarged explanatory view of a main part of the container.

FIG. 7 is an enlarged explanatory view of a main part explaining another example of the container used in the present invention.

FIG. 8 is an explanatory sectional view of a conventional refrigerator.

9 is an explanatory diagram illustrating a refrigeration cycle of the refrigerator illustrated in FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Refrigerator 2 Refrigerator room 3 Freezer room 4 Vegetable room 21, 31, 32, 41 Door 34, 35, 43 Container 34A One end of container 34B Side wall of container 34C Rib of container 36, 37 Cooling hole 38 Wall 22, 39, 33, 42 Door packing 23, 30, 40, 45 Second packing 11, 12, 13, 14, 15, 16 Receiving part 11A, 12A, 16A Receiving surface 51 Compressor 52 Evaporator 53 Fan 54 Dip condenser 55 Main condenser 56 Crest condenser 57 Capillary tube 60 Pipeline 70, 71 Bottom 72, 73 Weir 74 Opening 75, 76, 77, 79 Rib 78 Dish

Claims (5)

[Claims] 1. A refrigerator in which a container is provided in a plurality of rooms having doors on the front side, wherein the container has a wall facing the door formed in an uneven shape and the uneven wall of the container. An opening is provided between a bottom portion connected to the container and a bottom portion connected to a wall other than the uneven wall of the container, and cool air in the container flows downward along the inner surface of the uneven wall. rear,
A refrigerator, wherein the refrigerator does not flow in the opposite direction to the door facing the container after flowing out of the opening, or in the downward direction, in the vicinity of the door opening. 2. An upward weir is provided at one or both ends of the bottom to form an opening, so that liquid such as water collected at the bottom does not flow downward from the opening. The refrigerator according to claim 1, wherein: 3. A bottom portion connected to the uneven wall is provided stepwise below a bottom portion connected to a wall other than the uneven wall, and a bottom portion connected to the uneven wall is a wall other than the uneven wall. 3. The refrigerator according to claim 1, wherein the refrigerator overlaps a required length in parallel with a bottom portion connected to the refrigerator. 4. The refrigerator according to claim 1, wherein both the inner surface and the outer surface of the wall of the container facing the door are formed in an uneven shape. 5. The refrigerator according to claim 1, wherein a rib is provided on one or both of the bottom surfaces.