JPS6256762A - Refrigerator - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a refrigerator having a cooling pipe provided on the surface of an inner box.

2. Description of the Related Art Below, a conventional example will be explained with reference to FIGS. 4 and 6. 1 is the refrigerator body, 2 is an outer box, and 3 is an inner box made of resin. The refrigerator main body 1 is constructed by filling a heat insulating material 4 between the inner box 3 and the outer box 2. Reference numeral 6 denotes a cooling pipe of the refrigeration cycle, which is fitted from the outside of the inner box 3 into a plurality of protruding grooves 6 formed in a part of the inner box 3, and is made of heat conductive material such as aluminum foil. It is fixed to the inner box 3 with a material 7 covering its entire outer area.

Problems to be Solved by the Invention However, in the above configuration, the cooling vibro is not in close contact with the protrusion groove 6 of the inner box 3, but a gap is created, so that the cooling pipe 5 is not connected to the inner box 3. Thermal conductivity was poor, and therefore the cooling efficiency of the cooling vibro was also poor. Furthermore, even if the degree of adhesion between the protrusion groove e of the inner box 3 and the cooling pipe 5 is improved by some means, the protrusion that is in close contact with the cooling vibro has good heat conduction and the surface of the inner box 3 is sufficiently cooled. The groove 6 was the main part, and the other parts were not sufficiently cooled, and the cooling efficiency of the cooling pipe for the room could not be said to be sufficient.

The present invention has been made in view of the above-mentioned problems of the conventional example, and provides a refrigerator that improves the cooling efficiency of the cooling pipe for the room.

Means for Solving the Problems In order to solve the above problems, the present invention provides a cooling pipe on the inner surface of the inner box, and connects the cooling pipe with a plurality of recesses formed on a part of the surface of the inner box. It is fitted and fixed within the groove.

Function The present invention improves the efficiency of cooling indoors from the cooling pipe with the above-described configuration.

EXAMPLE Hereinafter, an example of the present invention will be described as shown in FIG.
(not shown), and a refrigerator compartment 9 is partitioned at the bottom. Hereinafter, in order to simplify the explanation, only the refrigerator compartment will be described in detail without referring to the freezer compartment. Reference numeral 16 designates a plurality of concave grooves that are vertically provided on the back surface of the refrigerator compartment 9 when the inner box 13 is formed. Reference numeral 16 denotes a cooling pipe of the refrigeration cycle, which is fitted into the groove 16 of the inner box 13 from the inside of the inner box 13, and a plate 17 made of, for example, synthetic resin, is inserted from the front side.
etc. at both corner portions 18a of the inner box 13.

It is inserted and fixed into the undercut portion of 18b.

Reference numeral 19 denotes a resin coating that covers the circumference of the cooling pipe 15, and is intended to prevent corrosion of the cooling pipe 15 since copper is generally used as a material for cooling pipes because it is inexpensive. In this case, the best coating for covering the cooling pipe 15 is a polyethylene coating having particular thermal conductivity.

The operation in the above configuration will be explained.

The cooling pipe 16 is fitted from the inner surface into the inner box 16 formed with grooves, and the front surface thereof is covered with the plate 17 etc. and fixed. In addition to the concave grooves 16 of the inner box 13, the flat parts between the four grooves 16 are also used as an effective cooling surface, and the back surface of the inner box 13 is used as a cooling surface.
On the other hand, the cooling efficiency can be improved since it can be used as a more uniform cooling plate.

Effects of the Invention The invention consists of an inner box divided into two compartments, a refrigerator compartment and a freezer compartment, an outer box, a heat insulating material filled between the two boxes, and a cooling pipe arranged inside the inner box. The cooling pipe is fitted into a plurality of grooves formed in a part of the inner box, and the cooling pipe is fixed to the inner box from the front with a plate. The cooling effect from the pipes into the room is immediately transmitted, and the contact surface of the inner box acts as a cooling plate that is almost uniform throughout, not just where the cooling pipes are located, resulting in extremely high cooling efficiency. The effects of this change are significant.

[Brief explanation of the drawing]

Fig. 1 is a main cross-sectional view of a refrigerator equipped with an inner box and cooling pipe showing one embodiment of the present invention, Fig. 2 is a cross-sectional view taken along the line A-A' in Fig. An enlarged cross-sectional view of the arrangement of cooling pipes, Figure 4 is a main cross-sectional view of a conventional refrigerator,
FIG. 6 is a sectional view taken along the line B+B/ in FIG. 4. 2...outer box, 9...refrigeration room, 13...
...Inner box, 14...Insulation material, 15...
...Cooling pipe, 16... Concave groove, 17...
... Board ○ Name of agent Patent attorney Toshio Nakao and 1 other person 2-
11 outside 7h q----, a1 13- Inner box Figure 1 /4・-#Kasugi 15-;+Egg bar 4ji2-1~ Tato box Figure 2 q-Cold A! /, 3--- Figure 3 Figure 4 Figure 5

Claims (1)

[Claims] It consists of an inner box divided into two compartments, a refrigerator and a freezer compartment, an outer box, a heat insulating material filled between the two boxes, and a cooling pipe arranged inside the inner box. is fitted into a plurality of concave grooves formed in a part of the inner box, and the cooling pipe is fixed to the inner box with a plate from the inner side of the inner box.