JPH1114240A - Refrigerator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enhance adhering performance between a magnetic door packing and a receiving part by imbedding a pipeline made of a magnetic material near the internal surface of the receiving part made of a resin by allowing a refrigerant of a temperature higher than the room temperature to flow into the pipeline for heating the receiving part to prevent dew condensation on the surface thereof. SOLUTION: A T type rib 13B is integrally formed at a receiving part 13A, which 13A is inserted and fitted into the tip of a surface member 5 made of a resin to link. A pipeline 60A made of a magnetic material is supported and imbedded at specified position on the side of the internal surface of the receiving part 13A and a refrigerant higher than the room temperature flows and radiates heat to heat the receiving part 13A. This enables preventing of the generation of dew condensation on the surface. In addition, the pipeline 60A is positioned and imbedded to enhance the adhesion between magnetic door packings 33 and 39 and the receiving part 13A thereby enabling the prevention of external leakage of chilled air.

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. 3, for example, a conventional refrigerator 1A is provided with a plurality of compartments from the top in the order of a refrigerator compartment 2, a freezer compartment 3, and a vegetable compartment 4, and a refrigerator compartment is provided in front of each compartment. 2 is a door 21 (swing-out type door), and a freezer compartment 3 is a door 31
(Drawer-type door), door 32 (drawer-type door), and vegetable room 4 are provided with door 41 (drawer-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] At the ends of the inner surfaces of the doors, magnetic door packings 22 and 39 having magnets or the like built in all around are provided.
33, 42 are provided, respectively, and a receiving portion 11 (an upper end of a box of the refrigerator 1A) and a receiving portion 12 (refrigerating room 2 and freezing room 3) made of an iron plate or the like forming a receiving surface of each door packing.
, The receiving part 13 (door 31 and door 32)
, A receiving part 14 (an end of a partition separating the freezer compartment 3 and a vegetable compartment 4), a receiving part 15 (a bottom end of a box of the refrigerator 1A), and receiving parts 16 and 17 (not shown) (the refrigerator 1A). And the door packings in close contact with each other to prevent the cool air from leaking to the outside, and circulate the cool air in the order of, for example, the freezing room 3, the refrigerating room 2, the vegetable room 4, etc. Each is maintained at an optimal 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. 4 shows a refrigeration cycle of the refrigerator 1A. 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 the crest condenser 56 for preventing the attachment,
17 flows through a conduit 60 made of a copper tube or the like, and passes through a capillary tube 57 to an evaporator 52.
After being evaporated and cooled by the compressor, it is compressed again by the compressor 51. In this manner, receiving portions 11 to 17 are received.
To the conduit 6 embedded inside these receiving parts.
0 is higher than room temperature by about 5 to 7 ° C. to radiate heat, thereby preventing the occurrence of dew condensation on the receiving surface.

FIG. 5 is an enlarged sectional view of FIG. 3A. Reference numeral 13 denotes a receiving portion made of an iron plate or the like forming a receiving surface of the door 31 and the door 32, 39 denotes a magnetic door packing incorporating a magnet 39A provided on the inner surface end of the door 31 over the entire circumference, 33 Is a magnetic door packing containing a magnet 33A provided at the end of the inner surface of the door 32 over the entire circumference, 5 is a resin-made surface member such as polypropylene, 6 is polystyrene provided in the hollow portion of the receiving portion 13. ,
A heat insulating foam such as polyurethane; 7 is a conduit 6
It is a member made of synthetic rubber such as butyl rubber for fixing 0 and 60.

[0006]

However, in the conventional refrigerator 1A, the door packings 22, 39, 33, and 42 are in close contact with the corresponding receiving portions 11 to 17 to prevent the leakage of cold air to the outside. As shown in FIG. 5, the receiving portion 13 is formed by processing both ends of a magnetic body such as an iron plate into a U-shape, and inserting this portion into the tip of the resin-made surface member 5 to be fitted and connected. Heat is conducted to the indoor side due to the
Since the receiving portions 1 to 12, the receiving portions 14 to 15, and the receiving portions 16 and 17 are the same as the receiving portion 13, heat is conducted to the interior of each room, and there is a problem that energy efficiency is reduced. An object of the present invention is to improve the adhesion between each door packing and each receiving portion to prevent the cold air in the room from leaking to the outside, and to suppress the conduction of heat from each receiving portion to each room side, thereby achieving an energy saving effect. An object of the present invention is to provide a refrigerator with improved performance.

[0007]

The inventors of the present invention have conducted intensive studies to solve the above-mentioned problems of the prior art, and as a result, the receiving portion is made of a resin and is opposed to a door packing having magnetism such as a built-in magnet. A pipe made of a magnetic material is embedded in the vicinity of the inner surface of the receiving part, and a refrigerant having a temperature higher than room temperature is flowed through the pipe to radiate heat to heat the receiving part to prevent dew condensation on the surface and to have the magnetic property. The present inventor has found that it is possible to provide a refrigerator having a high energy saving effect by enhancing the adhesion between the packing and the receiving portion, and has accomplished the present invention.

That is, according to the first aspect of the present invention, a plurality of chambers are provided, a dedicated door is provided on the front of each chamber, and a magnetic door packing provided on each door and a receiving surface thereof are formed. A refrigerator in which cold air is prevented from leaking to the outside by closely adhering a resin-made receiving portion, and a magnetic pipe is embedded near an inner surface of the resin-made receiving portion facing the door packing,
A refrigerator characterized by having a refrigerant higher than room temperature flow through this conduit to dissipate heat and heat the receiving portion to prevent the occurrence of dew condensation on the surface and to enhance the adhesion between the door packing and the receiving portion. is there.

According to a second aspect of the present invention, there is provided the refrigerator according to the first aspect, wherein a magnetic pipe supporting rib integrally formed with the receiving portion is provided on an inner surface of the resin receiving portion. It is characterized by the following.

A third aspect of the present invention is the refrigerator according to the first or second aspect, wherein the resin receiving portion is made of a polyolefin-based thermoplastic resin or a composition thereof. And

According to a fourth aspect of the present invention, in the refrigerator according to any one of the first to third aspects, the magnetic pipe is a steel pipe.

[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 and 2, portions indicated by the same reference numerals as those in FIGS. 3, 4, and 5 are portions having the same functions as the portions denoted by the same reference numerals described in FIGS. 3, 4, and 5. is there.

FIG. 1 is a sectional view of a refrigerator according to the present invention.
It is explanatory drawing which shows the state which pulled out. FIG. 2 is an enlarged sectional explanatory view of A when the door of the refrigerator of the present invention shown in FIG. 1 is closed. In FIG. 1, 11A, 12A, 13A, 1
4A, 15A and 16A, 17A are doors 21, 31,
The receiving portions 32 and 41 are resin-made receiving portions. These receiving portions are, for example, two T-shaped ribs formed integrally with the receiving portion 13A on the inner surface side of the receiving portion 13A as shown in FIG. 13
B and 13B are provided. 22, 39, 33, 45
Is a magnetic door packing having a built-in magnet provided at the end of the inner surface of each door over the entire circumference. 5 is a resin-made surface member such as polypropylene, 6 is a heat-insulating foam such as polystyrene or polyurethane disposed in a hollow portion, and 7 is a synthetic material such as butyl rubber for fixing the magnetic pipes 60A and 60A. It is a rubber member.

The resin used to form each receiving portion in the present invention may be a thermoplastic resin, a thermosetting resin, or a composition containing these as a main component, and is not particularly limited. However, a thermoplastic resin can be preferably used from the viewpoint of easy recycling and environmental friendliness.
Among the thermoplastic resins, polyolefins can be more preferably used. Specifically, for example, homopolymers of α-olefins such as ethylene, propylene, 1-butene, 1-hexene, 4-methyl-1-pentene and 1-decene or mutual copolymers thereof, and ethylene and unsaturated Copolymers with carboxylic acids or their esters or metal salts, ethylene-vinyl ester copolymers such as ethylene-vinyl acetate copolymers, polystyrenes, homopolymers or copolymers of styrene or its derivatives such as ABS, etc. Can be mentioned.

As shown in FIG. 2, a resin surface member 5 made by injection molding using a resin such as polypropylene.
The receiving part 13A is inserted into the inside of the front end of the head, and the two are connected to each other. Magnetic conduits 60A, 60A are embedded inside the receiving portion 13A of the connecting portion between the two.

The heated receiving portions 11A, 12A, 1
3A, 14A, 15A and 16A, 17A, the second packing 2 is provided over the entire circumference of the opening at a location where the interior has entered the room.
3, 30, 40, and 45 are provided, respectively, so that cold air in the room does not hit these heated receiving portions.

Since each receiving portion is made in the same manner, the case of the receiving portion 13A shown in FIG. 2 will be described below. Receiving part 1
The T-shaped ribs 13B, 13B are formed integrally with the receiving portion 13A in the 3A, and the receiving portion 13A is inserted into the tip of the resin-made surface member 5 to be fitted therein so that it can be easily and surely connected. At the same time, the magnetic pipes 60A, 60A can be easily supported and embedded at a predetermined position on the inner surface side of the receiving portion 13A.

Since the refrigerant 13A is heated by flowing a refrigerant higher than room temperature into the magnetic pipes 60A and 60A to radiate heat, it is possible to prevent the occurrence of dew condensation on the surface and to prevent the magnetic pipes 60A and 60A from being condensed. Since the position is decided and embedded,
The tightness between the door packings 39 and 33 and the receiving portion 13A is high, so that it is possible to prevent cold air in the room from leaking to the outside.

It is sufficient that the magnetic pipe is buried at least in the vicinity of the inner surface of the resin receiving portion, and all of the pipes 60 shown in FIG. 4 need to be magnetic pipes. There is no. The magnetic material pipe used in the present invention may be any material that can prevent the cold air in the room from leaking to the outside by increasing the adhesion between each door packing and each receiving surface.
The shape and dimensions are not particularly limited. A specific example of such a magnetic pipe is, for example, a commercially available steel pipe (Fulton pipe).

As a result of a test using a household refrigerator [SR-45SK, manufactured by Sanyo Electric Co., Ltd.] having the configuration shown in FIGS.
It was confirmed that there was an energy saving effect of １1 (kWH / month) and about 2 (kWH / month) when the second packing was used in combination.

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.

[0022]

According to the refrigerator of the present invention, since the door packings and the receiving portions have high adhesion, the cold air in the room does not leak to the outside.
In addition, since heat can be prevented from being transmitted from each receiving portion to each indoor side, a high energy saving effect can be achieved.

By providing a magnetic pipe supporting rib integrally formed with the receiving section on the inner surface side of the resin receiving section, the magnetic pipe can be easily supported and embedded at a predetermined position. it can.

If the resin receiving part is made of a polyolefin-based thermoplastic resin or a composition thereof, molding is easy,
Easy to recycle, environmentally friendly and economical. Further, since the receiving portion can be formed by molding the inner box of the main body, the number of parts and the cost can be reduced.

If a steel pipe is used as the magnetic pipe, it is easily available and economical.

[Brief description of the drawings]

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

FIG. 2 is an enlarged sectional explanatory view of A of the refrigerator of the present invention shown in FIG.

FIG. 3 is an explanatory sectional view of a conventional refrigerator.

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

FIG. 5 is an enlarged sectional explanatory view of A of the refrigerator shown in FIG. 3;

[Description of Signs] 1, 1A Refrigerator 2 Refrigerator room 3 Freezer room 4 Vegetable room 5 Resin surface member 6 Foam 7 Synthetic rubber member 13B Ribs 21, 31, 32, 41 Doors 34, 35, 43 Containers 22, 39 , 33, 42 Door packing 23, 30, 40, 45 Second packing 11, 12, 13, 14, 15, 11A, 12A, 13
A, 14A, 15A, 16A, 17A Receiving part 39A, 33A Magnet 51 Compressor 52 Evaporator 53 Fan 54 Dip condenser 55 Main condenser 56 Crest condenser 57 Capillary tube 60 Pipe 60A Magnetic pipe

Claims (4)

[Claims] A plurality of chambers are provided, a dedicated door is provided on the front of each chamber, and a magnetic door packing provided on each door and a resin receiving portion forming the receiving surface are brought into close contact with each other to cool air. A refrigerator that is prevented from leaking to the outside, in which a magnetic pipe is embedded near the inner surface of the resin receiving portion facing the door packing, and a refrigerant higher than room temperature flows through the pipe to radiate heat. A refrigerator characterized in that the receiving portion is heated to prevent the occurrence of dew condensation on the surface, and the adhesion between the door packing and the receiving portion is enhanced. 2. The refrigerator according to claim 1, wherein a magnetic pipe supporting rib formed integrally with the receiving portion is provided on an inner surface side of the resin receiving portion. 3. The refrigerator according to claim 1, wherein the resin receiving portion is made of a polyolefin-based thermoplastic resin or a composition thereof. 4. The refrigerator according to claim 1, wherein the magnetic pipe is a steel pipe.