JPH04169771A - Freezing chamber - Google Patents

Abstract

PURPOSE:To easily collect defrosting water to a part and to easily discharge it to outside of a freezing chamber through a drain by providing a recessed groove on a bottom face of an inner box and inclining the recessed groove. CONSTITUTION:A recessed groove 26 is provided on a bottom face 24 of an inner box. The recessed groove 26 is inclined and the end face of the bottom face 24 of the inner box is attached to the outside of the bottom parts of the side faces 23 of the inner box. A drain 27 is attached between an outer box 22, the bottom face 24 of the inner box and a heat insulating material 25. Cooling pipes 28 are tightly fixed between the side faces 23 of the inner box and the heat insulating material 25 by heat conductive members. The bottom face 24 of the inner box is provided in the recessed groove 26 and inclined. Thus, the cooling pipes 28 are tightly secured by the heat conductive members. Frost adhering to the side faces 23 of the inner box during cooling of a freezing chamber is collected in the recessed groove 26 of the bottom face 24 of the inner box during defrosting, Since the recessed 26 is inclined, the defrosting water can be easily collected to a part of the recessed groove 26 and easily discharged to outside of the freezing chamber from the drain 27.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to the structure of a freezer, and more particularly to the structure of an inner box of a freezer that is open at the top.

Conventional technology The structure of the inner box installation of our NR-FC28A, which was released in June 1988 as a conventional freezer with an opening on the top, is as follows.
It had a structure in which the bottom of the inner box attached to the side and the end of the inner box attached to the bottom were tightly attached and fixed.

Hereinafter, with reference to the drawings, the structure of the above-mentioned conventional inner box of a freezer with an open top will be described.

FIG. 4 is a vertical cross-sectional view of a conventional freezer with an opening on the top surface;
FIG. 5 is a cross-sectional view of a conventional freezer with an opening at the top.

1 is a main body of the freezer, and a heat insulating material 6 is filled between an outer box 2, a side surface 3 of the inner box, and a bottom surface 4 of the inner box.

The bottom of the side surface 3 of the inner box and the end surface of the bottom surface 4 of the inner box are attached in close contact with each other, and a sealant 6 is applied thereto.

A drain 7 is installed between the outer box 2, the bottom surface 4 of the inner box, and the heat insulating material 5. Reference numeral 8 denotes a cooling pipe which is closely fixed by a thermally conductive member 9 between the side surface of the inner box 3 and the heat insulating material 5.

The structure of the inner box of the freezer with an open top surface constructed as described above will be explained below.

In the freezer 1 with the top open, the bottom of the side surface 3 of the inner box and the end surface of the bottom surface 4 of the inner box are in close contact with each other, and a sealant 6 is applied and installed, and the thermostat (not shown) is turned off.
The sealing material 6 is applied to prevent the defrosting water from entering the heat insulating material 5 when it accumulates on the bottom surface 4 of the inner box from the side surface 3 of the inner box. The defrosting water accumulated on the bottom surface 4 of the inner box is discharged to the outside of the refrigerator from a drain 7.

On the other hand, a cooling pipe 8 is closely fixed between the side surface 3 of the inner box and the heat insulating material 5 by a thermally conductive member 9, and cools the inside of the freezer when the thermostat (not shown) is turned on.

Problems to be Solved by the Invention However, due to the power of the above configuration, if the freezer door is opened and closed frequently or if frozen foods are stored for a long period of time,
A large amount of frost forms on the side of the inner box, and when defrosting, the defrosting water is
Some of the defrosting water that has accumulated from the side of the inner box to the bottom of the inner box wets the frozen food, and the defrosting water is not properly discharged from the drain to the outside of the refrigerator, causing water to leak from the side of the inner box and the end of the bottom of the inner box. There was a problem with frost removal water entering the insulation material.

The present invention was made in view of the above-mentioned problems, and includes a structure in which the defrosting water in the inner box does not accumulate on the entire bottom surface of the inner box, and a structure in which the defrosting water can be discharged outside the refrigerator through a reliable drain, and the defrosting water can be removed from the insulation material. This provides an inner box structure that prevents water from penetrating.

Means for Solving the Problems In order to solve the above problems, the structure of the inner box of the present invention is such that the bottom surface of the inner box is formed into a concave groove, the upper groove is partially inclined, and the end surface of the bottom surface of the inner box is formed into a concave groove. The structure is such that it is placed υ outside the bottom of the side of the inner box.

Function: With the above-mentioned configuration, defrosting water easily collects in the groove on the bottom of the inner box, and by sloping the groove on the bottom of the inner box, the defrosting water collects in one place and is reliably drained from the drain. The present invention provides an inner box that can be discharged to the outside and prevents defrosting water from entering the heat insulating material due to the structure in which the end surface of the bottom surface of the inner box is attached outside the bottom of the inner box.

EXAMPLE An example of the present invention will be described below with reference to FIGS. 1 to 3.

21 is a freezer main body, and a heat insulating material 26 is filled between the outer box 22, the side surface 23 of the inner box, and the bottom surface 24 of the inner box.

A groove 26 is provided on the bottom surface 24 of the inner box, and the groove 26
is inclined, and the end surface of the bottom surface 24 of the inner box is attached to the outside of the bottom of the side surface 23 of the inner box. 27
is attached between the outer box 22, the bottom surface 23 of the inner box, and the heat insulating material 25 with seven wires. On the other hand, the cooling pipe 28 has a structure in which it is closely fixed between the side surface 23 of the inner box and the heat insulating material 26 by a thermally conductive member 29.

The function of the structure of the inner box configured as described above will be explained below.

The mounting structure of the inner box is such that the bottom surface 24 of the inner box is provided in a groove 26 and is inclined. For this reason, the cooling pipe 28 is tightly attached by the thermally conductive member 29, and the frost adhering to the side surface 23 of the inner box during cooling inside the refrigerator is removed from the bottom surface 23 of the inner box during defrosting.
Since the groove 26 is inclined, the defrosting water easily collects in a part of the groove 26. The defrost water that easily collects in the groove 26 can be easily drained out of the refrigerator from the drain 27.

On the other hand, since the end surface of the bottom surface 24 of the inner box is attached to the outside of the bottom of the side surface 23 of the inner box, there is no possibility that the defrosting water will enter the heat insulating material.

Effects of the Invention As described above, the present invention provides a concave groove on the bottom surface of the inner box, and by sloping the concave groove, the defrosting water during defrosting can easily collect in a part. Defrost water does not accumulate on the entire surface and can be easily drained out of the refrigerator from the drain. Also, it is difficult to get the frozen food inside the refrigerator wet. Furthermore, since the end surface of the inner box on the bottom surface is attached to the outside of the bottom of the side surface of the inner box, it is possible to provide a structure of the inner box of the freezer with the top surface open, which can prevent defrosting water from penetrating into the heat insulating material.

[Brief explanation of drawings]

FIG. 1 is a longitudinal sectional view of a freezer in an embodiment of the present invention;
FIG. 2 is a cross-sectional view of a freezer according to an embodiment of the present invention;
FIG. 3 is a perspective view of the bottom inner box in an embodiment of the present invention, FIG. 4 is a vertical sectional view of a conventional freezer, and FIG. 5 is a cross-sectional view of a conventional freezer. 21... Freezer body, 22... Outer box,
23...Side surface of inner box, 24...Bottom surface of inner box, 26...Insulating material, 26...Concave groove, 27... - Drain, 28... Cooling pipe, 29... Heat conductive member. Name of agent: Patent attorney Akira Okaji and two others Figure 1? 5 No. 21!1 Fig. 4

Claims (3)

[Claims] (1) an outer box, a side surface of the inner box, a bottom surface of the inner box, a heat insulating material filled between the two boxes, and a drain installed between the bottom surface of the outer box and the inner box and the cross-sectional material; A freezer comprising a cooling pipe attached to an outer surface of a side surface of the inner box by a thermally conductive member, and a groove is provided at an end of a bottom surface of the inner box. (2) The freezer according to claim 1, wherein the groove at the end of the bottom of the inner box is sloped. (3) The freezer according to claim 1, wherein the end surface of the bottom surface of the inner box is provided outside the side bottom of the inner box.