JP2003021455A - Refrigerator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a refrigerator which reinforces a recessed groove part of an inner plate of a door to which a door packing of a door body is fitted, to ensure the close contact of the door packing with a flange of an outer box, and thereby to prevent lowering of a commodity value. SOLUTION: A door body 11 is composed of a door outer plate 15 having an outer edge part 21 extended inward from the rear ends of four sides, the upper and lower and the right and left sides, a door inner plate 16 having the frame-shaped recessed groove part 23 inside a peripheral edge 22 in close contact with the outside of the outer edge 21 and a foamed heat-insulating material 18 packed inside, while the door packing 17 is formed in the shape of a frame, having a fitting part 24 to be fitted in the recessed groove part 23, a plurality of air chambers 27, a magnet chamber 26 provided with a magnet 25, fin parts 28a and 28b, etc. In the refrigerator constituted of these parts, a reinforcing part 29 formed to have a reverse-Ω-shaped section and so fitted as to cover the outer periphery of the recessed groove 23 of the door inner plate 16 is provided. The reinforcing part 29 is so fitted as to come into close contact with the outer periphery of the recessed groove part 23 and provided in the heat- insulating material 18 packed between the door inner plate 16 and the door outer plate 15.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigerator, and more particularly, to a structure for reinforcing a recessed groove portion of a door inner surface plate for mounting a door packing of a door body.

[0002]

2. Description of the Related Art In a refrigerator, for example, as shown in FIG. 1, the inside of a heat insulating box 1 composed of an outer box 2 made of a steel plate, an inner box 3 made of resin, and a heat insulating material 4 is covered by partition bodies 5, 6. A partition body 10 which is divided into a refrigerating compartment 7, a freezing compartment 8 and a vegetable compartment 9 in this order from above, and which divides the front opening of the freezing compartment 8 into two parts, the upper opening and the lower opening
The refrigerator compartment 7 is provided with a door body 11 as shown in FIG. There is a drawer type of 13 and a door 14 of the vegetable compartment 9.

FIG. 4 is an enlarged sectional view taken along the line A--A of FIG. 1. As shown in the figure, the door body 11 is mounted on the door outer surface plate 15, the door inner surface plate (also referred to as a door back) 16, and the door inner surface plate 16. The door packing 17 is provided with the heat insulating material 18 and the like filled therein. The outer box 2 which constitutes the heat insulating box 1 has an outer box flange 19, and the inner box 3 has the outer box flange 19.
Has an inner box flange 20 that closely adheres to the inside to form the inside of the refrigerator.

At the rear ends of the upper, lower, left and right sides of the door outer surface plate 15, there are outer edge portions 21 extending inward, and the outer edge portion 21 is attached so that the peripheral edge portion 22 of the door inner surface plate 16 is overlapped. Has been. A frame-shaped recessed groove portion 2 is provided inside the peripheral edge portion 22.
3 is formed, the mounting portion 24 of the door packing 17 is fitted in the concave groove portion 23, and the door packing 17 is mounted on the door inner face plate 16. The door packing 17 is made of a soft synthetic resin such as vinyl chloride resin and has the same cross section over the entire circumference. The door packing 17 contacts the mounting portion 24 having the arrow-shaped cross section facing the door body 11 and the outer casing flange 19. The magnet chamber 26 in which the magnet 25 in contact is inserted, the plurality of air chambers 27 partitioned by the plurality of partition walls 27a that expand and contract, and the fin portion 2
8a and 28b are provided, and these are integrally formed in a frame shape.

However, when the door 11 is formed, the heat insulating material 18 filled between the door outer surface plate 15 and the door inner surface plate 16 contracts after foaming, so that the center of the peripheral edge portion 22 of the door inner surface plate 16 is reduced. As shown in FIGS. 5 (A) and 5 (B), the inward warps or curves, so that the recessed groove portion 23 formed on the door inner face plate 16 is also deformed and attached to the recessed groove portion 23. The door packing 17 and the outer box flange 19
There is a problem that a gap may be formed between them and cold air may leak and the appearance may be impaired.

[0006]

SUMMARY OF THE INVENTION In view of the above problems, the present invention reinforces the recessed groove portion of the door inner face plate on which the door packing of the door body is mounted so as to improve the adhesion between the door packing and the outer casing flange. The purpose is to provide a refrigerator that ensures the product value and does not reduce the product value.

[0007]

In order to solve the above-mentioned problems, the present invention provides a heat insulating box body comprising a heat insulating material filled between an outer box having a flange and an inner box forming the inside of a refrigerator, A door outer surface plate that is openably and closably provided on the front surface of the heat insulating box and forms an outer surface, a door packing that abuts a flange of the outer box, and a door inner surface plate that forms a concave groove portion for mounting the door packing on a peripheral edge. And a door body made of a heat insulating material filled between the door inner surface plate and the door outer surface plate, wherein the refrigerator is fitted so as to cover the outer periphery of the recessed groove portion of the door inner surface plate. The reinforcing portion is provided, and the reinforcing portion is arranged in a heat insulating material filled between the door inner surface plate and the door outer surface plate.

The reinforcing portion is formed integrally with the edge of the outer periphery of the recessed groove and the hole to form a reinforcing member.

The reinforcing portion is made of a hard elastic material.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below as examples based on the accompanying drawings. 1 is a side sectional view of a refrigerator according to the present invention (and a conventional example), FIG. 2 is an inside perspective view of a refrigerator door body according to the present invention (and a conventional example), and FIG. 3 is an embodiment of the present invention. FIG. 3 is an enlarged cross-sectional view of a main part of the door body of the refrigerator showing the configuration of FIG. The same parts as those in the conventional example have the same reference numerals.

FIG. 1 shows the internal structure of the refrigerator from the side. Reference numeral 1 denotes a heat-insulating box body composed of an outer box 2 made of steel plate, an inner box 3 made of resin, and a heat insulating material 4. The inside (inner box 3) of this heat-insulating box 1 is divided into upper and lower refrigerating chambers 7 by partition bodies 5 and 6.
And a freezer compartment 8 in the middle and a vegetable compartment 9 in the lower,
The front opening of the freezer compartment 8 is provided with a partition body 10 that divides the opening into upper and lower parts. Although not shown, a cooler for generating cold air, a blower and a duct for circulating the cold air in the respective compartments 7, 8, 9 are arranged on the back side of the freezing compartment 8. The door 11 of the refrigerating compartment 7 is pivotally supported so that the upper and lower sides of the refrigerating compartment 7 can be freely opened and closed because the refrigerating compartment 7 is at the top, but both the doors 12 and 13 of the freezing compartment and the door 14 of the vegetable compartment 9 are open. It is a drawer type.

The door 11 will be described below as an example. 2 is a perspective view of the door body 11 as seen from the inside, and FIG. 3 is an enlarged sectional view taken along the line AA of FIG. As shown in the figure, the door body 11 includes a box-shaped door outer surface plate 15, a door inner surface plate (also referred to as a door back) 16,
It is composed of a door packing 17 provided between them, a foaming heat insulating material 18 filled inside, and the like. The outer box 2 that constitutes the heat-insulating box body 1 has an outer box flange 19, and the inner box 3 has an inner box flange 20 that is in close contact with the outer box flange 19 to form a refrigerator.

At the rear ends of the upper, lower, left and right sides of the door outer surface plate 15, there are outer edge portions 21 extending inward, and the outer edge portion 21 is attached so that the peripheral edge portion 22 of the door inner surface plate 16 is overlapped. Has been. A frame-shaped recessed groove portion 23 is provided inside the peripheral edge portion 22.
Is formed, the mounting portion 24 of the door packing 17 is fitted in the concave groove portion 23, and the door packing 17 is mounted on the door inner face plate 16.

The door packing 17 is made of a soft synthetic resin, for example, vinyl chloride resin, has the same cross section over the entire circumference, and has the mounting portion 24 having an arrow-like cross section facing the door body 11 and the outer box. A magnet chamber 26 in which a magnet 25 abutting on the flange 19 is inserted, a plurality of air chambers 27 partitioned by a plurality of partition walls 27a that expand and contract, and fins 28a and 28b are integrally formed in a frame shape. Is forming.

A reinforcing portion 2 having a reverse Ω-shaped cross section which is fitted so as to cover the outer periphery of the recessed groove portion 23 of the door inner surface plate 16.
9 is provided, the reinforcing portion 29 is fitted so as to be in close contact with the outer periphery of the recessed groove portion 23, and is disposed in the heat insulating material 18 filled between the door inner surface plate 16 and the door outer surface plate 15. . By forming the reinforcing portion 29 in a reverse Ω shape in cross section, the reinforcing portion 29 is easily fitted into the recessed groove portion 23 of the door inner surface plate 16.

The material of the reinforcing portion is made of metal such as a hard elastic material such as aluminum or plastic resin, and since the reinforcing portion has a circular shape with a reverse Ω shape in cross section, it is It can withstand pressure and can be used depending on the foaming pressure and the contracting force after foaming.

With the above structure, the door body 11 having the door packing 17 is provided with the reinforcing portion 29 which is fitted so as to cover the outer periphery of the recessed groove portion 23 of the door inner face plate 16, so that the outside of the door is provided. The warp of the peripheral edge portion 22 of the door inner surface plate 16 caused by the contraction of the heat insulating material 18 filled between the face plate 15 and the door inner surface plate 16 can be prevented, and the concave groove portion 23 of the door inner surface plate 16 can also be deformed. In addition, since the door packing 17 attached to the recessed groove portion 23 and the outer casing flange 19 are also firmly adhered to each other, it is possible to eliminate the problem that cold air may leak and the appearance may be impaired. .

[0018]

As described above, according to the present invention,
Reinforcing the groove on the inner surface of the door where the door packing of the door body is mounted ensures the close contact between the door packing and the outer box flange.
It becomes a refrigerator that does not reduce the commercial value.

[Brief description of drawings]

FIG. 1 is a side sectional view of a refrigerator according to the present invention and a conventional example.

FIG. 2 is an inner perspective view of a door body of a refrigerator according to the present invention and a conventional example.

FIG. 3 is an enlarged cross-sectional view of a main part of the door body of the refrigerator showing the embodiment of the present invention.

FIG. 4 is an enlarged sectional view of a main part of a refrigerator door body showing a conventional example.

FIG. 5 is an enlarged cross-sectional view of an essential part showing an example of a problem that has occurred in a conventional door body.

[Explanation of symbols]

1 Insulation box 7 Refrigerator 11 door 15 Door outer plate 16 Door inner plate (door back) 17 Door packing 18 insulation 19 Outer box flange 20 Inner box flange 21 outer edge 22 Perimeter 23 groove 24 Mounting part 25 magnets 26 Magnet room 27 air chamber 27a partition wall 28a, 28b fin part 29 Reinforcement part

Claims (3)

[Claims] 1. A heat-insulating box body comprising a heat-insulating material filled between an outer box having a flange and an inner box forming the inside of the cabinet, and a heat-insulating box body provided on the front surface of the heat-insulating box body so as to be openable and closable to form an outer surface. A door outer surface plate, a door packing that abuts a flange of the outer box, a door inner surface plate that forms a concave groove portion for mounting the door packing on a peripheral edge, and a space between the door inner surface plate and the door outer surface plate In a refrigerator configured with a door body made of a heat insulating material, a reinforcing portion that fits so as to cover the outer periphery of the recessed groove portion of the door inner surface plate is provided, and the reinforcing portion is provided with the door inner surface plate and the door. A refrigerator characterized by being arranged in a heat insulating material filled between the outer surface plate and the outer surface plate. 2. The refrigerator according to claim 1, wherein the reinforcing portion is integrally formed with the peripheral edge of the concave groove portion and the hole to form a reinforcement. 3. The refrigerator according to claim 1, wherein the reinforcing portion is made of a hard elastic material.