JPS5848538Y2 - refrigerator - Google Patents

Description

[Detailed description of the invention] This invention forms a cold room with an opening at the rear by bending a plate-shaped cooler at the top of the interior of the refrigerator body, which is filled with insulation material between the inner box and the outer box. , regarding the refrigerator in which the rear opening edge is fitted into a storage portion formed on the back wall of the inner box to close the rear opening, when the refrigerator is structured in such a manner that the insulation material is filled by an in-situ foaming method, the cooler This prevents the sound of the insulation material peeling off from the inner box when the inner box is cooled and contracts, or the sound of the insulation material cracking, and also strengthens thin parts when the inner box is vacuum formed. To provide a refrigerator that can absorb sound caused by flowing refrigerant.

Next, embodiments of the present invention will be described in detail based on the drawings.

Reference numeral 1 denotes a refrigerator body in which a heat insulating material 4 is filled between an outer box 2 and an inner box 3.

Reference numeral 5 denotes a cooler installed in the upper part of the interior of the main body 1, and a plate-shaped cooler is formed into a substantially rectangular cylindrical shape with openings on the front and rear sides to form a cold room.

The front opening of the cooler is closed by a door 8, and the rear opening is closed by fitting and supporting the edge of the rear opening into a storage section 6 integrally formed on the back wall of the inner box 3.

The inner box 3 is made into a predetermined shape by vacuum forming, and the outer surface of the storage part 6, that is, the back surface of the inner box, is made of foamed polyethylene, glass fiber, or the like with a predetermined thickness to provide sufficient elasticity in the thickness direction. The elastic heat insulating board 7 is attached directly with an adhesive or a pressure-sensitive adhesive, or with a tape containing these.

The heat insulating material 4 is polyurethane foam filled between the inner box 3 and the outer box 2, to which the heat insulating board 7 is attached, by an in-situ foaming method.

In this foam filling, the polyurethane 4 permeates into the heat insulating board 7 and the two are combined, but even in the completed state, a sufficiently elastic portion remains to serve as the heat insulating board 7.

The present invention is configured as described above, so that even if the rear opening edge of the cooler is supported in the storage part of the inner box and the rear opening is closed, the inner box will shrink in the cooler. On the other hand, due to the elasticity of the elastic heat insulating plate, this contraction and deformation of the inner box is sufficiently tolerated, and the heat insulating material does not crack, nor does it cause any peeling noise between the inner box and the heat insulating material.

In addition, the thin parts that occur at some of the peripheral corners of the storage area when the inner box is vacuum formed are reinforced with heat insulating plates, so they are sufficient to withstand the pressure during the assembly process of the inner and outer boxes, or during the foaming process. You get protection.

Also, when used as a refrigerator, the refrigerant noise flowing through the cooler is transmitted from the inner box to the polyurethane insulation material and then to the outer box, but much of this is absorbed by the elasticity of the insulation board, damping the refrigerant sound. It produces the effect that can be achieved.

[Brief explanation of drawings]

FIG. 1 is a schematic longitudinal cross-sectional view of the refrigerator of the present invention, and FIG. 2 is a cross-sectional view of the essential parts thereof. 4...Insulating material, 5...Cooler, Power insulation board. 6...Storage section, 7...Bullet

Claims (1)

[Scope of utility model registration request] A cold room with an opening at the rear is formed by bending a plate-shaped cooler at the upper part of the inside of the refrigerator body filled with a heat insulating material between the inner box and the outer box, and the rear opening edge is connected to the back wall of the inner box. 1. A refrigerator comprising: a refrigerator whose rear opening is closed by fitting into a storage portion formed in the storage portion; and an elastic heat insulating plate is attached to the back surface of an inner box of the storage portion.