JPH1114228A - Refrigerator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enhance an energy saving effect by fixing one end of a second packing at a location where the temperature of receiving parts themselves rapidly changes toward the inside of a room from receiving surfaces of the receiving parts heated or at a location farther within the inside of the room. SOLUTION: In a refrigerator 1, door packings 22, 38, 33 and 42 are made to adhere to receiving parts 11-16 forming receiving surfaces of the door packings provided on the doors 21, 31, 32 and 41 for the prevention of leakage of chilled air outside. Each one of second packings 23, 36, 37 and 38 is fixed at locations L where the temperature of the receiving parts themselves rapidly changes toward the inside of a chamber from receiving surfaces of the receiving parts 11-15 or at locations L farther within the room. Other ends of the second packings 23, 36, 37 and 43 are brought into contact with parts of the internal surfaces of the doors 21, 31, 32 and 41 or brought into contact with the parts of the internal surfaces of the doors 21, 31, 32 and 41 while being done with each one end of the containers 34 and 35 to keep chilled air within the room from hitting the heated receiving parts 11-16.

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 freezer compartment 3 is provided with containers 34 and 35, in which ice and frozen food are put in the container 34, and frozen food and the like are put in the container 35.

[0003] Door packings 22, 38, 33, and 42 are provided at the ends of the inner surfaces of the doors over the entire circumference, respectively.
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 to generate cold heat, 5
3 is a fan for circulating cool air.

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 receiving the crest condenser 56 for preventing the sticking, the receiving parts 11 to 15, 16 at the opening end of the outer box
After flowing through a conduit 60 provided in the like and evaporating and cooling by an evaporator 52 through a capillary tube 57,
The compression is performed again by the compressor 51. In this way, the pipe 60 buried in the frontage of the main body is heated by about 5 to 7 ° C. higher than room temperature to radiate heat and receive the receiving portions 11 to 1
The occurrence of dew condensation on the surface such as 5, 16 is prevented.

[0005]

However, in the conventional refrigerator 1, as shown by arrows in FIG. 8, the cold air in the respective rooms is heated by hitting the receiving portions 11 to 15 and 16 which are heated. As a result, there is a problem that energy efficiency is reduced. An object of the present invention is to provide a refrigerator in which the cold air in each room does not substantially hit the heated receiving portions 11 to 15 and 16, thereby improving the energy saving effect.

[0006]

The present inventors have conducted intensive studies to solve the above-mentioned problems of the prior art, and as a result, a second packing (for example, made of synthetic rubber or a PVC-based composition, etc.) at a specific location. It has been found that a refrigerator having a high energy-saving effect can be provided by providing a packing to prevent the cold air in the room from hitting the heated receiving portions 11 to 15 and 16, thereby achieving the present invention.

That is, the invention of claim 1 of the present invention comprises a plurality of chambers, a dedicated door is provided on the front of each chamber, and a door packing provided on each door and its receiving surface are formed. In order to prevent the cold air from leaking to the outside by bringing the heated receiving portions into close contact with each other, and to prevent the cold air in each room from being heated by hitting the heated receiving portions, A refrigerator provided with a second packing at an inner peripheral portion of a door and / or at each door opening, wherein the temperature of the receiving portion itself rapidly changes from the heated receiving surface of the receiving portion toward the room or The refrigerator is characterized in that one end of the second packing is fixed to or substantially in contact with a location in the room further from this location.

According to a second aspect of the present invention, in the refrigerator according to the first aspect, a second packing is provided over the entire periphery of each door opening.

According to a third aspect of the present invention, in the refrigerator according to the first or second aspect, one end of the second packing is fixed at a position at least 30 mm away from a receiving surface of the receiving portion toward a room. It is characterized by having prepared.

According to a fourth aspect of the present invention, in the refrigerator according to the third aspect, the other end of the second packing is in contact with a part of the inner surface of the door or is provided at a distance of at most 5 mm. Features.

According to a fifth aspect of the present invention, in the refrigerator according to the third aspect, the other end of the second packing is brought into contact with one end of a container provided in the chamber, or at most 5 mm.
It is characterized by being provided separately.

According to a sixth aspect of the present invention, in the refrigerator according to the first aspect, one end of the second packing is fixed to the inner peripheral side of the door, and the other end is directed from the receiving surface of the receiving portion toward the room. 30
It is characterized in that it is provided in contact with a portion separated by at least 5 mm or at a maximum of 5 mm.

According to a seventh aspect of the present invention, in the refrigerator according to any one of the first to sixth aspects, each door is a drawer type door and / or a swing-out type door.

[0014]

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 1 forming receiving surfaces of 38, 33, 42
5, 16 and the door packing are brought into close contact with each other to prevent cold air from leaking to the outside, and at a place where the temperature of the receiving part itself rapidly changes from the heated receiving surface of the receiving part toward the room or One end is fixed to a location in the room (the location indicated by L in FIG. 1), and the other end is brought into contact with a part of the inner surface of each door, or the other end is attached to the inner surface of each door. The receiving portions 11 to 1 are provided with second packings 23, 36, 37, and 43, which are in contact with a part thereof and are in contact with one ends of the containers 34 and 35, respectively, and the indoor cold air is heated.
5 and 16 are not hit. In addition, one end of the second packing 23 is fixed to a position where L enters the room from the respective receiving surfaces of the receiving portions 11 and 12, and the other end is the door 2.
1 to contact a part of the inner surface, and
The second packing 36 is fixed at one end to a position where the second packing 36 enters the room from the receiving surfaces of the receiving portions 12 and 13 by L, and the other end is the door 3.
1 and is in contact with one end of the container 34. The second packing 37 and the second
The packing 43 is similar to the second packing 36.

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, 36, 37, 43 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 enlarged cross-sectional explanatory view of a main part BB of FIG. In FIG. 3, the second packing 36 receives the receiving portion 1 from the receiving surface 12 </ b> A of the receiving portion 12 having the heated distal end toward the room.
2 is a place where the temperature of itself changes suddenly or a place further in the room than this place (L from the receiving surface 12A toward the room).
One end of the second packing 36 is fixed to the lower surface of the receiving portion 12 which is separated by only one distance, and the other end of the second packing 36 is in contact with one end 34A of the upper part of the container 34 or is separated by at most 5 mm. It is provided. Thus, the cold air in the room is substantially prevented from hitting the heated distal end portion of the receiving portion 12.

In FIG. 4, the temperature of the receiving portion 16 of the second packing 36 is rapidly increased from the receiving surface 16A of the receiving portion 16 (the distal end portion of the side wall of the refrigerator 1) into the room. A place that changes or a place further in the room than this place (the receiving portion 1 that is separated from the receiving surface 16A by L toward the room)
6 is fixed to one end of a second packing 36, and the other end of the second packing 36 is attached to the side wall 3 of the container 34.
It is provided in contact with a rib 34C formed at one end of 4B or at a distance of at most 5 mm. Thus, the cold air in the room is substantially prevented from hitting the front end of the heated receiving portion 16.

FIG. 5 shows the distance (mm) from the receiving surface (for example, receiving surface 12A) of the receiving portion (for example, receiving portion 12) with the front end heated to the room direction and the temperature of the receiving portion itself (wall surface). temperature)
It is a graph which shows the relationship of (degreeC). The temperature of the receiving surface is line 6
0 is about 35 ° C., so there is about 33 ° C. due to the temperature gradient, but from about 10 mm to about 30 mm from this receiving surface.
When entering the room, the temperature of the receiving part rapidly decreases, and becomes about -10 ° C to about -20 ° C at about 30 mm or more. If one end of the second packing (for example, the second packing 36) is fixed and provided at a location such as the surface of the receiving portion 30 mm or more away from the receiving surface of the receiving portion toward the room, the cold air in the room is heated. Since the second packing itself is not heated by the heat conduction from the receiving portion, the energy saving effect can be improved.

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 4, it was found that there was an energy saving effect of about 2 (kWH / month). Admitted.

In the above embodiment, as shown in FIG. 2, the example in which the second packing is provided over the entire periphery of each door opening is shown, but a part thereof may be omitted. Therefore, the present invention includes a case where the second packing is not provided over the entire periphery of each door opening. As a specific example where the second packing is not provided over the entire circumference of each door opening, for example, the receiving portion 1 shown in FIG.
6 (the second packing 3 provided at the end of the side wall of the refrigerator 1)
Part or all of 6 can be omitted in a range that does not significantly affect energy saving.

FIG. 6 shows that the second packing 2
3 shows another example of a refrigerator provided with the present invention. The refrigerator 1 shown in FIG. 6 is the same as the refrigerator shown in FIG. 1 except that a second packing 23 is provided on the inner peripheral portion of the door 21. FIG. 7 is an explanatory sectional view of a main part showing a state of the second packing 23 when the door 21 of the refrigerator 1 shown in FIG. 6 is closed. As shown in FIG. 7, one end of the second packing 23 is fixed to the inner peripheral portion of the door 21, and
3 is a receiving surface 11A of the receiving portion 11 whose front end is heated.
From the room to the room where the temperature of the receiving portion 11 itself changes suddenly or further from the room (the receiving surface 1).
It contacts the lower surface of the receiving portion 11 which is away from the room 1A by L toward the room, or at a distance of at most 5 mm. In this way, the cold air in the room is substantially prevented from hitting the heated distal end of the receiving portion 11. In the present invention, the second packing may be provided on the inner peripheral portion of the door, may be provided on the door opening, or may be provided on both the inner peripheral portion of the door and the door opening.

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.

[0024]

According to the refrigerator of the present invention, the second packing is provided at a specific location so that the cold air in the room does not hit the heated receiving portion, so that a high energy saving effect can be obtained.

[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 enlarged sectional explanatory view of a main part BB of FIG. 1;

FIG. 5 is a graph showing a relationship between a distance from a receiving surface of a receiving portion whose distal end is heated and a wall surface temperature.

FIG. 6 is an explanatory sectional view of a main part of another refrigerator according to the present invention provided with a second packing on an inner peripheral portion of a door.

FIG. 7 is an explanatory sectional view of a main part showing a state of a second packing when the door of the refrigerator shown in FIG. 6 is closed.

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 Container 34A One end of container 34B Side wall of container 34C Container rib 22, 32, 33, 42 Door packing 23, 36, 37, 43 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 Pipe line

Claims (7)

[Claims] 1. A plurality of chambers, a dedicated door is provided in front of each of the chambers, and a door packing provided on each door and a receiving portion heated to prevent condensation are formed. In order to prevent the cool air from leaking to the outside by making close contact with each other and to prevent the cool air in each room from hitting the heated receiving portion and being heated, each door inner peripheral portion and / or each door opening. A refrigerator provided with a second packing at a portion, wherein the temperature of the receiving portion itself changes rapidly from the heated receiving surface of the receiving portion toward the room or at a location in the room further from this portion. (2) A refrigerator, wherein one end of a packing is fixed or provided so as to be substantially in contact with the packing. 2. The refrigerator according to claim 1, wherein a second packing is provided over the entire periphery of each door opening. 3. The room from the receiving surface of the receiving portion toward the room.
3. The refrigerator according to claim 1, wherein one end of the second packing is fixedly provided at a position separated by not less than mm. 4. The refrigerator according to claim 3, wherein the other end of the second packing is in contact with a part of the inner surface of the door or is provided at a distance of at most 5 mm. 5. The refrigerator according to claim 3, wherein the other end of the second packing is in contact with one end of a container provided in the chamber or is provided at a distance of at most 5 mm. 6. One end of the second packing is fixed to the inner peripheral side of the door, and the other end is 30 mm from the receiving surface of the receiving portion toward the room.
Contact with a place more than 5m away or at most 5m
The refrigerator according to claim 1, wherein the refrigerator is provided at a distance of m. 7. The refrigerator according to claim 1, wherein each door is a pull-out door and / or a swing-out door.