JP2002107055A - Refrigerator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a refrigerator which is formed with the heat of one storage chamber being hardly transmitted to the other storage chamber. SOLUTION: In a refrigerator formed so that a middle partition made of a synthetic resin to partition the interior of a chamber into a plurality of sections is provided with a partition surface to form one chamber and a partition surface to partition the interior of the two partition surfaces into the front and the rear by interconnecting the two partition surfaces, and since a hole is formed in the partition part of the middle partition, a passage for heat flowing from one chamber to the other chamber is narrowed and heat can hardly flow, and heat insulation performance of the partition part can be improved. Thereby, a temperature difference between chambers making contact with a middle partition can be easily kept at a given temperature and an energy consumption amount can be suppressed. Since thermal conductivity is lower as compared with that of the stainless material, a inflow amount of heat from the outside of a chamber to the interior of a chamber is suppressed to a low value and an electricity using amount of the refrigerator can be also reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigerator in which a plurality of storage compartments are formed by partitioning the inside of an insulated box with a partition.

[0002]

2. Description of the Related Art A refrigerator in which a heat insulating box body is partitioned into a plurality of storage rooms, for example, a refrigerator room, a vegetable room, a freezer room, and the like by a middle partition is described in, for example, Japanese Patent Application Laid-Open No. 9-138057. .

[0003] Among refrigerators of the same kind, there is a refrigerator in which a partition extending from an upper vegetable compartment to a lower freezer compartment is formed in a synthetic resin middle partition. This partition is a rib made of synthetic resin, its thickness is about 2 to 3 mm,
It was formed over the entire width of the partition. For this reason, the inside of the middle partition is completely divided between the front side and the rear side.

[0004]

In a conventional refrigerator, although it is a part made of synthetic resin, a part having a thickness of about 2 to 3 mm has a freezer compartment (controlled at about -20 ° C.) and a vegetable compartment (about 5 mm). ° C
Is formed, so that heat easily flows from the high-temperature part of the vegetable compartment to the low-temperature part of the freezer compartment, it is difficult for the freezer compartment to cool down, and the vegetable compartment side is too cold. The problem has occurred.

[0005] Also, ON / OF of the compressor of the refrigerator
Since F is normally controlled by the temperature sensor of the freezing room, the inside of the above-mentioned partition structure has a problem that the inside of the freezing room warms up quickly, so that the driving time of the compressor becomes long and it does not save energy. ing.

[0006] The present invention provides a refrigerator in which heat in one storage room is not transmitted to the other storage room.

[0007]

SUMMARY OF THE INVENTION According to the present invention, there is provided a synthetic resin partition for partitioning the inside of a refrigerator into a plurality of partitions, a partition surface for forming one chamber and a partition for forming the other chamber. In a refrigerator having a surface and a partition portion connecting the two partition surfaces to each other to partition the inside of the two partition surfaces back and forth, a hole is made in the partition portion of the middle partition.

Further, the holes are alternately formed from one chamber side to the other chamber side.

[0009] The hole may be a square hole or a trapezoidal shape.

[0010] Further, in a refrigerator provided with a middle partition made of synthetic resin for partitioning the inside of the refrigerator into a plurality of compartments, a partition surface for forming one chamber and a partition surface for forming the other chamber. A plurality of communicating portions connecting the partition surfaces are formed at intervals.

Further, a partition made of a synthetic resin for partitioning the inside of the compartment into a plurality of sections, a partition face for forming one chamber, a partition face for forming the other chamber, and these two faces are connected to each other. In the refrigerator, the inside of these both sides is formed as a partition part for partitioning the front and rear, and a front surface of the middle partition having a substantially U-shaped cross-sectional partitioning plate in contact with the door is disposed facing forward. On the back of the partitioning plate, a frame pipe constituting a part of the condenser and a fixture for mounting this pipe are provided, a hole is formed in the partition part, and the heat insulating material is foamed from the back side of the partition. It is what was filled while making it.

[0012]

Embodiments of the present invention will be described below in detail with reference to the drawings. 1 to 5 show a refrigerator according to a first embodiment of the present invention.

Reference numeral 1 denotes a household refrigerator according to the present invention. The refrigerator comprises a heat-insulating box 2 having a front opening and constituting a main body of the refrigerator.
Doors 3, 4, 5, 6, 7 for closing the opening of the box. The door 3 is a revolving door for a refrigerator room described later, and the doors 4, 5, 6, and 7 are drawer-type doors. The door 4 is for a vegetable room, the door 5 is for an ice making room, the door 6 is for a temperature switching room, and the 7 is for a freezing room. Reference numeral 8 denotes a cover called a kick plate, which is detachably attached to a lower portion of the front surface.

Reference numerals 11, 12 and 13 denote intermediate partitioning plates which are attached to the front of a horizontal partitioning wall which partitions the interior of the heat insulating box 2 into four steps. In this embodiment, food is not frozen above the partitioning wall 11. Refrigerator 1 cooled to a temperature (for example, about 3 ° C.)
4. The lower part of the refrigerator compartment is a vegetable compartment 15 which is cooled to a temperature slightly higher than the temperature of the refrigerator compartment and suitable for storing vegetables (for example, about 5 ° C.), and the lower part of the partition wall 12 has a freezing temperature (for example, An ice making chamber 16 is cooled to about -25 ° C.), and a freezing chamber 17 is cooled below the partition wall 13 to a freezing temperature (for example, about −20 ° C.). Reference numeral 18 denotes a switching room in which the storage temperature is switched according to the user's preference. Reference numeral 19 denotes a middle partitioning plate attached to the front surface of a vertical partition that partitions the ice making room 16 and the switching room 18, and 20 denotes a frame horizontal plate for forming a door packing contact surface at the lower part of the front surface.
Incidentally, the intermediate partitioning plates 11, 12, 13, and 19 are for forming a door packing contact surface, similarly to the frame horizontal plate 20.

Reference numeral 21 denotes an inner box, 22 denotes a frame, and a top plate and left and right side surfaces are integrally formed.

A refrigerant compressor 51 shown in FIG.
7 It is arranged at the lower rear. 52 is a freezing evaporator, 5
Reference numeral 3 denotes a refrigerating blower, 54 denotes a refrigerating evaporator, and 55 denotes a refrigerating blower. Although not designated by a reference numeral, the ice making chamber 16 is provided with an ice tray, a driving device for driving the ice tray and dropping ice into an ice box below.

FIG. 4 is an enlarged sectional view of the circle A in FIG. 3. The vegetable room door 4 includes a door sheet 25, a door panel 26, a heat insulating material 27 for a door to be filled therebetween, and a door cap 28 attached to a lower portion. , A magnet packing 29 and the like. still,
Reference numerals 30 and 36 denote attachment portions that constitute a part of the magnet packing.

The ice making chamber door 5 includes a front panel 31, a door panel 32, a handle 33, a handle, a door panel, a door heat insulating material 34 filled in the front panel, and a magnet packing 35.
And so on.

Reference numeral 40 denotes a partition member, which is mainly composed of a middle partition 41 made of synthetic resin and an inner box 42. The partitioning plate indicated by reference numeral 12 is made of a stainless steel material (for example, SUS430 or the like) having a substantially U-shaped cross section as shown in the figure, and this stainless steel material is magnetized and has a magnet packing. Are adsorbed. Similarly, the partitioning plates 11, 13, 19 and the frame horizontal plate 20 are also formed of stainless steel and have magnetism. 41A is the upper surface (partition surface) of the middle partition, 41B
Is the lower surface (partition surface) of the middle partition, 41C is these surfaces 41
A partition part 41A that connects A and 41B to each other is a square hole formed in this partition part. As shown in the drawing, the cross section of the middle partition 41 is formed in a substantially "E" -shaped cross section in which the upper surface 41A and the lower surface 41B greatly extend to the rear side.

Reference numeral 43 denotes a frame pipe which is constructed so that dew condensation can be prevented without using an electric heater by using a part of a condenser constituting a refrigerant circuit. 4
Reference numeral 4 denotes a frame pipe fitting, which is, for example, foamed PE or moltoprene. Reference numeral 45 denotes a conductive plate (butyl rubber) for transmitting heat. 46 is a heat insulating material filled in the inner partition 41, and 47 is a heat insulating material filled in the inner box 42.

The intermediate partitioning plates 11, 12, 13, 19 and the frame bottom plate 20 are coated with the same color as the color of the inner box to improve the design and prevent rust. .

The square hole 41D formed in the partition 41C has a horizontally long shape as shown in FIG. 5, and is arranged from one room (vegetable room 15) to the other room (ice making room 16). They are staggered. The arrows shown in FIG. 5 indicate the flow of heat.

The partition member 4 of the refrigerator configured as described above.
0 is manufactured in the following manner.

First, the inner partition 41 is attached to the inner box 42. Next, the frame pipe fitting 44 is put into the partition 41. Then, the frame pipe 43 is placed in the partition 41.
Then, the conductive plate 45 previously attached to the middle partitioning plate 12 is attached to the middle partition 41. Then, from the back side of the inner box (from the back side of the partition 41), the inside is filled while urethane is foamed. This urethane is filled into the inside of the partition 41 through a hole (not shown) of the inner box, and further reaches the front of the partition 41 through the partition square hole 41D. At this time, the frame pipe 43 is pushed toward the partitioning plate 12 by the urethane foaming pressure, so that the heat of the frame pipe 43 is easily transmitted to the partitioning plate 12.

When the heat insulating material is filled in this way, the assembly of the partition member 40 is completed. In the refrigerator configured as described above, the temperature of the vegetable compartment 15 is about 5 ° C.
The temperature of the ice making room 16 is controlled to about −20 ° C., but the heat of the vegetable room 15 is transmitted to the ice making room 16 through the partition 41C. As shown by arrows in FIG. 5, the heat is transmitted while passing through the zigzag path (the path through which the heat is transmitted becomes longer) and the width of the path through which the heat is transmitted is shorter (cross-sectional area of the path). Heat is difficult to conduct. For this reason, the heat of the vegetable compartment 15 is hardly transmitted to the ice making compartment 16, and the vegetable compartment 15
It is easy to maintain the temperature difference between the ice making room 16 and the ice making room 16, thereby preventing such a problem that the vegetable room 15 becomes too cold or the ice making room 16 becomes hard to cool down.

Although this partition has a portion to which heat is transmitted, this portion remains and is reinforced. Therefore, although the thickness of the resin component is thin as a whole, there is no possibility of insufficient strength. Not to be.

Next, a second embodiment of the present invention will be described with reference to FIG. 6 for differences from the first embodiment. 41E is a trapezoidal square hole which is formed alternately (alternately) like the square hole shown in FIG.

In the thus constructed refrigerator of the second embodiment, the heat transmission passage is considerably narrower at the center of the partition 41C than in the first embodiment of the heat transmission. Since it is hard to be transmitted, the heat insulation performance is improved as compared with the refrigerator of the first embodiment.

In addition, the trapezoidal shape can secure necessary strength in a portion having a large passage area through which heat is transmitted, and the thickness of the partition can be reduced.

Although these embodiments have been described with respect to the example in which square holes are provided, round holes may be used. However, as described in the second embodiment, it is considered that a square hole and a trapezoidal shape is less likely to conduct heat than a round hole, and is considered to be a desirable embodiment.

Next, a third embodiment of the present invention will be described with reference to first and second embodiments.
Differences from the embodiment will be described with reference to FIG. A communication portion 50 connects the upper surface 41A and the lower surface 41B. The communication portion 50 supports the upper surface 41A and the lower surface 41B. And a plurality of these communication parts 50 are formed,
These communicating portions 50 are formed at intervals.

In the refrigerator of the third embodiment constructed as described above, as in the first embodiment, the width of the passage through which heat is transmitted and the length of the passage through which heat is transmitted are long. Is hardly transmitted to the freezing compartment 16, and the heat insulation performance is improved.

In place of the frame pipe 43, an electric heater may be used as a heater for preventing dew condensation.
However, in order to save energy, it is considered preferable to use a part of the condenser as in this embodiment.

[0034]

According to the first aspect of the present invention, since a hole is formed in the partition, the passage of heat flowing from one chamber to the other chamber can be narrowed to make it difficult to conduct heat. Heat insulation performance can be improved. For this reason, it is easy to maintain the temperature difference between the chambers in contact with the inner partition at a predetermined temperature, and it is possible to suppress energy consumption.

According to the second aspect of the present invention, the holes of the partition portion are formed alternately from one chamber side to the other chamber side, so that a heat passage flowing from one chamber to the other chamber is provided. The heat can be narrowed to make it difficult to transmit, and the heat flow can be made zigzag to make it difficult to transmit.
For this reason, the heat insulation performance in the partition can be further enhanced.

Further, according to the third aspect of the present invention, since the hole of the partition portion is a square hole, the opening area can be increased and the path through which heat is transmitted can be narrowed as compared with the round hole. The heat insulating performance in the part can be further enhanced.

According to the fourth aspect of the present invention, since the square hole has a trapezoidal shape, the area of the passage through which heat is transmitted can be partially further reduced, so that heat is not easily transmitted and heat insulation performance is reduced. And the required strength can be ensured in a portion where the passage area through which heat is transmitted is large, and the thickness of the middle partition can be reduced.

Further, according to the fifth aspect of the present invention, a plurality of communicating portions for connecting the partition surfaces are formed at intervals, so that, similarly to the first aspect of the present invention, one communicating chamber is connected to the other. The passage of heat flowing to the chamber can be narrowed to make it difficult to transmit the heat, and the heat insulating performance in the partition can be enhanced.

According to the sixth aspect of the present invention, when the heat insulating material is filled while foaming the heat insulating material, the heat insulating material presses the fixture and the frame pipe from the square hole to the partitioning plate. Dew condensation caused by insufficient contact with the partitioning plate can be prevented. In addition, since the partition is provided with the square holes, heat transmitted from one chamber to the other chamber can be hardly transmitted, and the heat insulation performance can be improved.

[Brief description of the drawings]

FIG. 1 is a front view showing a refrigerator of the present invention.

FIG. 2 is a front view showing a state where a door of the refrigerator is removed.

FIG. 3 is an explanatory view showing a cross section of the refrigerator.

FIG. 4 is an enlarged sectional view of an A circle shown in FIG. 3;

FIG. 5 is a front view of a partition of the refrigerator.

FIG. 6 is a front view of a partition showing a second embodiment of the present invention.

FIG. 7 is a front view of a partition showing a third embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Refrigerator 12 Middle partition plate 41 Middle partition 41A Upper surface (partition surface) 41B is the lower surface (partition surface) of a middle partition 41C Partition part 41D Square hole 41E Square hole (trapezoidal hole) 43 Frame pipe 44 Fittings 46 Thermal insulation (Foam insulation) 50 Communication part

Claims (6)

[Claims] An interior partition made of synthetic resin for partitioning the inside of a refrigerator into a plurality of compartments, a partition surface for constituting one chamber, a partition surface for constituting the other chamber, and these two partition surfaces. A refrigerator having a partition part for connecting the inside and the rear of the two partition surfaces, wherein a hole is made in the partition part of the middle partition. 2. The refrigerator according to claim 1, wherein the holes are alternately formed from one room side to the other room side. 3. The refrigerator according to claim 1, wherein the hole is a square hole. 4. The refrigerator according to claim 3, wherein the square hole has a trapezoidal shape. 5. A refrigerator provided with a partition made of synthetic resin for partitioning the inside of a refrigerator into a plurality of compartments, a partition face for forming one chamber, and a partition face for forming the other chamber.
A refrigerator characterized in that a plurality of communicating portions connecting the partition surfaces are formed at intervals. 6. A partition made of a synthetic resin for partitioning the inside of the compartment into a plurality of sections, a partition face for forming one chamber, a partition face for forming the other chamber, and these two faces connected to each other. In the refrigerator in which a surface that abuts the door with a partitioning plate having a substantially U-shape in cross section is disposed facing the front at the front of the partition, the partition is formed at the front of the partition. On the back of the partitioning plate, a frame pipe that constitutes a part of the condenser and a fixture for attaching this pipe are provided,
A refrigerator, wherein a hole is formed in the partition portion, and the heat insulating material is filled while being foamed from the back side of the middle partition.