JPS621677Y2 - - Google Patents

Description

[Detailed description of the invention] This invention eliminates the need for a separate fixing device, which was previously required, by fixing the defrost water drainage pipe using a piece cut out from a part of the back plate that forms the refrigerator body. This was designed to reduce manufacturing costs.

In conventional refrigerators, the drain pipe is fixed to the back plate of the main body with a fastener, and there is a drawback that a separate fastener is required. In addition, because conventional drainage pipes are arranged downward along the back plate of the main body and the bottom opening is open to the atmosphere, outside air enters the refrigerator through this pipe, causing heat leakage. It was hot.

As mentioned above, the first purpose of the present invention is to eliminate the separately required fasteners and reduce manufacturing costs.

The second purpose of the present invention is to form a trap section on the drain pipe using the cut-out piece of the back plate of the main body, thereby preventing heat from entering the refrigerator and reducing the heat load on the refrigerator. The goal is to reduce power consumption.

Hereinafter, one embodiment of the present invention will be described in detail with reference to the drawings. 1 is a refrigerator main body, and a heat insulating wall is formed by an inner box 2, an outer box 3, and a heat insulating material 4 filled between the two. Reference numeral 5 denotes a drainage pipe for guiding defrosting water from a cooler (not shown) for cooling the inside of the refrigerator body 1 to an evaporation tray 6 provided at the outer bottom of the refrigerator body 1. The pipe 5 has an insertion hole 8a formed in a pair of cut pieces 8 and 9 formed by cutting a part of the bottom surface of the main body back plate 7 forming the outer box 3.
It is inserted and fixed to 9a. As shown in FIG. 2, this back plate 7 is made by bending a single iron flat plate into a step shape to form a back surface portion 10, a stepped bottom portion 13 consisting of a slope portion 11 and a step portion 12. can be,
The cut-and-raised piece 8 is cut and raised from the back side of the slope part 11 and is hung down along the back part 10, and the cut-and-raised piece 9 is cut and raised from the middle part of the slope part 11 and is hung down. Further, the cut-and-raised piece 8 is suspended downward from the cut-and-raised piece 9, so that the insertion hole 8 is
a is also located below the insertion hole 9a. Therefore,
When the drainage pipe 5 attached downward along the back surface 10 is inserted into the insertion holes 8a and 9a in sequence and its lower end opening 5a is provided adjacent to the evaporation dish 6, there is a space between the cut and raised pieces 8 and 9. A trap portion 14 is formed.

15 is a compressor located below the bottom part 13 of the back plate 7;
In addition to 5, a condenser (not shown) is also provided.
Further, 16 is a refrigerator compartment.

Now, in the configuration of the above embodiment, by providing the cut and raised pieces 8 and 9 on the main body back plate 7 forming the refrigerator main body 1, there is no need for a special stopper for fixing the drain pipe 5, and the manufacturing cost can be reduced. The reduction can be measured. Furthermore, by arranging the pieces 8 and 9 in the above-described relationship, the trap portion 1 can be attached to the drainage pipe 5 itself.
4 can be formed, and this trap part 14
The accumulated defrosting water prevents communication between the inside and outside of the refrigerator through the pipe 5, thereby preventing heat leakage. Therefore, the heat load is reduced, leading to a reduction in power consumption. Further, the trap section 14 includes a compressor 15,
Since it is formed near the part where the condenser is provided, the water in the trap part 14 will not freeze even when the outside temperature is low due to the influence of heat radiation from the compressor 15, condenser, etc.

As mentioned above, according to the refrigerator of the present invention, there is no need to separately provide a fixing device for fixing the defrost water drainage pipe to the back plate of the main unit, reducing manufacturing costs. Since the drainage trap portion can be formed in the drainage pipe by simply attaching the cut-out piece into the insertion hole of the cut-up piece, the assembling work is greatly simplified, which is a remarkable effect.

[Brief explanation of the drawing]

Figure 1: Cross-sectional view of main parts of the refrigerator of the present invention, Figure 2:
FIG. 3 is a perspective view of a main part of the main body back plate. Code, 5: Drainage pipe, 7: Main body back plate, 8,
9: Cut-up piece.

Claims (1)

[Scope of utility model registration request] In the refrigerator, a drainage pipe is arranged along the outer surface of the back plate of the main body to lead defrosting water from a cooler provided in the refrigerator main body to an evaporation plate provided on the outer bottom of the main body. A raised piece with an insertion hole through which the drainage pipe is inserted is provided on the lower end and bottom of the rear surface of the outer box, and the insertion hole of the cut-and-raised piece formed on the rear side is provided on the bottom. The drainage pipe is inserted into the insertion hole of each of the cut-and-raised piece formed on the back side and the cut-and-raised piece formed on the bottom side. A refrigerator characterized in that a drain trap portion is formed in the drain pipe.