JPH07190599A - Refrigerator - Google Patents

Abstract

PURPOSE:To prevent a bad appearance of a main body of a refrigerator from being generated due to a state of flow of thermal insulating material or foaming pressure, enable an easy and positive fixing of a water drain pipe while a cost required for performing an assembling work is reduced, and to improve as assembling work. CONSTITUTION:In a refrigerator comprising a foam thermal insulating material 11 filled between an inner box 3 and an outer box 2, and a water drain pipe 9 buried in the foamed thermal insulating material 11 and in which the water drain pipe 9 is inserted into an fixed to a groove 13 formed in the inner box 3, there is provided a fixing part for use in fixing the water drain pipe 9 to the groove 13.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to fixing a drainage pipe of a refrigerator or the like.

[0002]

2. Description of the Related Art Conventional refrigerators of this type are shown in FIGS.
8 and 9, the top freezer type refrigerator has a refrigerator main body 1 as shown in FIG.
Is formed by an outer box 2 and an inner box 3, a freezer compartment 4 is provided at an upper portion of the refrigerator body 1, and a refrigerating compartment 5 is provided at a lower portion thereof. The cooling device 6 is provided, and the defrosting water receiving part 7 for receiving the defrosting water from the cooling device 6 is provided in the lower part of the cooling device 6, and the defrosting water from the defrosting water receiving device 7 is supplied to the refrigerator body 1 A drainage pipe 9 for draining water to an evaporation tray (not shown) in a machine room 8 disposed at the lower part of the refrigerator body 1
Is disposed between the outer box 2 and the inner box 3 on the back of the
One end of the outer box 2 is fixed by being connected to the defrost water receiving portion 7, and the other end is fixed by a fixing hole 10 provided in the upper part of the machine room 8.
The foam heat insulating material 11 is filled between the inner box 3 and the inner box 3.

In the refrigerator constructed as described above, when the foam insulation material 11 is filled between the outer box 2 and the inner box 3, depending on the foaming pressure of the foam insulation material 11 and the flow condition at the time of injection, A void 12 is generated near the drain pipe 9 or the drain pipe 9
Comes into contact with the outer box 2 to form irregularities, which makes the appearance unsightly.

Therefore, in the refrigerator constructed as shown in FIG. 10, a U-shaped groove 13 for positioning the drain pipe 9 is provided in the inner box 3, and the drain pipe 9 is inserted into the groove 13. Affix with paper tape 14 etc., and the outer box 2 and inner box 3
And the foamed heat insulating material 11 is filled between them.

[0005]

However, in the refrigerator in which the ends of the drainage pipes 9 are fixed as described above,
When the foam insulation material 11 is filled between the outer box 2 and the inner box 3, a void 12 may be generated near the drain pipe 9 or the drain pipe 9 may be generated due to the foaming pressure of the foam insulation material 11 and the flow condition at the time of injection. 9
However, there is a problem in that the outer casing 2 comes into contact with the outer casing 2 to cause unevenness, which is unsightly in appearance.

Further, in the refrigerator which prevents the appearance from being unsightly, the groove 13 merely positions the drain pipe 9 and cannot be completely fixed even if the drain pipe 9 is inserted into the groove 13. Therefore, since the paper tape 14 or the like for fixing the drain pipe 9 is required, the cost required for the assembling work is increased, the work for attaching the paper tape 14 or the like is increased, and the assembling workability can be improved. There was a problem that it could not be done.

The refrigerator of the present invention solves the above problems, and can prevent the appearance of the refrigerator body from being unsightly caused by the foaming pressure of the heat insulating material and the flow condition at the time of injection. An object of the present invention is to provide a refrigerator in which the drainage pipe can be easily and surely fixed while the cost required for it is kept low and the assembly work can be improved.

[0008]

To achieve the above object, a refrigerator of the present invention comprises a heat insulating material filled between an inner box and an outer box, and a drain pipe embedded in the heat insulating material. A refrigerator in which the drainage pipe is inserted into a groove provided in the inner box to fix the drainage pipe is provided with a fixing portion for fixing the drainage pipe in the groove.

According to a second aspect of the present invention, in the structure according to the first aspect, the fixing portion is formed with a plurality of undercut-shaped projections in the bent portion of the groove portion.

According to a third aspect of the present invention, in the structure according to the first aspect, the fixing portion includes a plurality of recesses or protrusions in the groove and a plurality of drainage pipes corresponding to the recesses or protrusions. It is formed on the convex portion or the concave portion.

[0011]

With the above structure, when the heat insulating material is filled between the outer box and the inner box, the drainage pipe inserted in the groove is fixed by the fixing portion, so that the foaming pressure of the heat insulating material and the time of injection can be improved. It is possible to prevent unsightly appearance of the refrigerator main body caused by the flow condition, and a separate member for fixing the drainage pipe is not required, and the drainage pipe is easily and reliably fixed while keeping the cost required for assembly work low. Moreover, since the work of fixing the drainage pipe is not necessary, the assembling work can be improved.

[0012]

Embodiments of the refrigerator according to the present invention will be described in detail below with reference to FIGS. The same parts as those of the present invention and the conventional example are designated by the same reference numerals, and the description thereof will be omitted.

The first embodiment of the refrigerator according to the present invention is constructed as shown in FIGS. 1 to 3, and in FIGS. 1 and 3, the conventional refrigerator shown in FIG. Undercut-shaped projections 15 are arranged at predetermined intervals at the bent portions of the U-shaped groove 13 of the inner box 3, and the diameter a of the drain pipe 9 is one bent portion of the groove 13 and the projection 15. The drainage pipe 9 having a diameter slightly larger than the space b between them is inserted.

In the refrigerator constructed as in the first embodiment, when the drainage pipe 9 is inserted into the groove 13, the drainage pipe 9 is fixed by the projection 15, so that the outer box 2 and the inner box 3 When the foam heat insulating material 11 is filled between
A void 12 may be generated near the drain pipe 9 or the drain pipe 9 may contact the outer casing 2 to cause unevenness depending on the foaming pressure of 1 and the flow condition at the time of injection, thereby preventing unsightly appearance. Therefore, a separate member for fixing the drainage pipe 9 is not necessary, and the drainage pipe 9 can be easily and surely fixed while the cost required for the assembly work is kept low, and the work for fixing the drainage pipe 9 is unnecessary. Therefore, the assembling work can be improved. The second embodiment of the refrigerator according to the present invention is configured as shown in FIGS.
Since the same effect as that of the embodiment is obtained, the description thereof will be omitted. 4 and 5, in the structure of the conventional refrigerator as shown in FIG. 10, concave portions 16 are further arranged at predetermined intervals on the inner surface of the U-shaped groove 13 of the inner box 3, and the groove 13 is formed.
When the drain pipe 9 is inserted into the drain pipe 9, a convex portion 17 is provided on the outer peripheral surface of the drain pipe 9 facing the recess 16, and the drain pipe 9 has a diameter c.
And the dimension d of the convex portion 17 are formed to be slightly larger than the interval e of the groove 13, and the depth f of the groove 13 is formed slightly deeper than the length obtained by dividing the diameter c of the drain pipe 9 into two equal parts. The dimension g of the recess 16 is slightly larger than the dimension h of the protrusion 16.

In the refrigerator constructed as in the second embodiment, when the drainage pipe 9 is inserted into the groove 13, the protrusion 17 of the drainage pipe 9 and the recess 17 of the groove 13 are fitted to each other so that the drainage pipe 9 is inserted. Is fixed.

A third embodiment of the refrigerator of the present invention is constructed as shown in FIGS. 6 and 7, and since the operation and effect are the same as those of the second embodiment, the description thereof will be given. Omit it. 6 and 7, contrary to the configuration of FIGS. 4 and 5, the recess 16 is the drain pipe 9 and the projection 17 is the groove 1.
3 may be provided, and the present invention is not limited to the above embodiment.

[0017]

Since the refrigerator of the present invention has the above-described structure, when the drainage pipe is inserted into the groove, the drainage pipe is fixed by the fixing portion, so that heat insulation is provided between the outer box and the inner box. When filling the material, it is possible to prevent unsightly appearance due to the foaming pressure of the heat insulating material and the flow condition at the time of injection, and a separate member for fixing the drainage pipe is not required, reducing the cost required for assembly work. The drainage pipe can be fixed easily and surely while suppressing it, and the work of fixing the drainage pipe is not required, so that the assembling work can be improved.

[Brief description of drawings]

FIG. 1 is a horizontal cross-sectional view of a main part of a refrigerator according to a first embodiment of the refrigerator of the present invention.

2 is a view A in the vicinity of the drainage pipe of the first embodiment shown in FIG.
FIG.

FIG. 3 is a rear view of the essential parts near the drainage pipe of the first embodiment of the refrigerator of the present invention.

FIG. 4 is a view A in the vicinity of the drainage pipe of the second embodiment shown in FIG.
FIG.

5 is a cross-sectional view taken along the line BB in the vicinity of the drain pipe shown in FIG.

6 is an arrow A near the drainage pipe of the third embodiment shown in FIG.
FIG.

7 is a cross-sectional view taken along the line CC of the vicinity of the drain pipe shown in FIG.

FIG. 8 is a side sectional view of a main part of a conventional refrigerator.

9 is a view D in the vicinity of the drain pipe of the first conventional example shown in FIG.
It is a -D sectional view.

10 is a cross-sectional view taken along the line DD in the vicinity of the drainage pipe of the second conventional example shown in FIG.

[Explanation of symbols]

 2 Outer box 3 Inner box 9 Drain pipe 11 Foam insulation 13 Groove 15 Protrusion 16 Recess 17 Convex

Claims (3)

[Claims] 1. A heat insulating material filled between an inner box and an outer box, and a drain pipe embedded in the heat insulating material. The drain pipe is inserted into a groove portion provided in the inner box. A refrigerator for fixing, comprising a fixing portion for fixing the drainage pipe in the groove. 2. The refrigerator according to claim 1, wherein the fixing portion is formed with a plurality of undercut-shaped projections on the bent portion of the groove portion. 3. The fixing portion is formed with a plurality of concave portions or convex portions in the groove portion and a plurality of convex portions or concave portions in the drain pipe corresponding to the concave portions or convex portions. The refrigerator according to Item 1.