JPH02272283A - Refrigerator - Google Patents

Abstract

PURPOSE:To facilitate manufacture and assembly of antisweating pipe and to reduce a material cost by a method wherein a partition part antisweating pipe formed approximately in an U-shape is connected to a protrusion part, protruding from a part of the antisweating pipe mounted along the inner surface on the front opening side of an outer box, by high frequency induction heating soldering. CONSTITUTION:An antisweating pipe 14 is arranged along the inner surface of a flange part 13 being the inner surface on the front opening part 12 side of an outer box 11, an inner box 15 is inserted in the outer box 11, and a partition wall 18 is inserted in the inner box 15. An expansion part 22a of a partition part antisweating pipe 22 formed approximately in a U-shape is engaged with a protrusion part 14a of the antisweating pipe 14, an annular soldering material 25 is previously engaged with the end part of the engaging part therebetween and soldered by high frequency induction heating. The partition part antisweating pipe 22 is extended along a front plate 18a of the partition wall 18.

Description

[Detailed Description of the Invention] [Objective of the Invention] (Industrial Application Field) The present invention provides a dew-proofing pipe that runs along the front surface of a partition that partitions an inner box installed inside an outer box into upper and lower parts. Regarding refrigerators.

(Prior Art) Conventionally, when assembling a refrigerator, as shown in FIG. an inner box having an opening on the front surface, with a U-shaped partition pipe section 2a at the - portion protruding forward from the front opening 1a, and passing through the front opening 1a from the front of the outer box 1. 3 is inserted into the inner box 3, and a partition wall 6 is inserted into the inner box 3, which is a partition part that partitions the interior of the inner box 3 into upper and lower sections, for example, into a freezing compartment 4 and a refrigerating compartment 5. Then, the partition pipe portion 2a of the dew-proof pipe 2 is bent back toward the front opening of the inner box 3 so as to be along the front surface of the partition wall 6.

(Problem to be Solved by the Invention) However, in the above configuration, the dew-proof pipe 2 is
Since the U-shaped partition pipe section 2a must be bent in the middle, manufacturing is troublesome, and when the inner box 3 is inserted into the outer box 1, Bend it forward at a substantially right angle so that it does not get in the way of inserting the inner box 3. After inserting and installing the inner box 3 into the outer box 1, insert the partition pipe section 2a into the front of the inner box 3. It is difficult to assemble as it requires bending back towards the opening side, and
As the dew-proof pipe 2, a material with good flexibility, such as a copper pipe, must be used.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a refrigerator in which the dew-proof pipe is easy to manufacture and assemble, and the material of the dew-proof pipe is not limited.

[Structure of the Invention] (Means for Solving the Problems) The refrigerator of the present invention is arranged along the inner surface on the front opening side of the outer box having an open front, and a part of the side surface of the outer box is separated. A dew-proof pipe is provided with both ends of the pipe formed in a protruding part protruding from the front opening, and an inner box whose inside is partitioned into upper and lower parts by a partition part is provided inside the outer box, and this inner box is attached. After that, a substantially U-shaped partition portion dew-proof pipe is connected to the protruding portion of the dew-proof pipe by high-frequency induction heating brazing,
The device is characterized in that the partition portion dew-proof pipe is arranged along the partition portion.

(Function) In the refrigerator of the present invention, the dew-proof pipe is manufactured in a substantially U-shaped partition without a dew-proof pipe.
It is easy to manufacture, and after the dew-proof pipe is placed in the outer box, the partition part dew-proof pipe is connected to the protruding part by high-frequency induction heating brazing, making assembly easy.
Since the materials of the dew-proof pipe and the partition part dew-proof pipe do not require high flexibility, the materials can be selected freely.

(Embodiment) An embodiment of the present invention will be described below with reference to FIGS. 1 to 4.

First, in FIGS. 2 and 3, 11 is the front opening 1.
2, and a U-shaped flange portion 13 is formed at the edge of the front opening 12 by bending inward. Reference numeral 14 denotes a dew-proof pipe made of, for example, an iron pipe, which is a high-pressure refrigerant pipe of a refrigeration cycle. For example, part of the left side of the top.

2I below! a protruding portion 14a which is separated and whose respective ends protrude from the front opening 12 by, for example, about 30 mm;
14a. 15 is a plastic inner box having a front opening 16, which is inserted into the outer box 11 from the front through the front opening 12, and is formed to protrude outward from the edge of the front opening 16. Flange part 17
is fitted into the flange portion 13 of the outer box 11. Reference numeral 18 denotes two heat-insulating partition walls inserted into the inner box 15, which connect the inner box 15 to the freezer compartment 19. It is vertically partitioned into a switching chamber 20 and a refrigerating chamber 21. 18a
is a plastic front plate of each partition wall 18. 22
are, for example, two partitioned dew-proof pipes made of iron pipes, which are approximately U-shaped, with enlarged diameters m22a and 22a at both ends.
a is fitted into the protrusion 14 M + 14 a and brazed by high frequency induction heating. The partition dew-proofing pipe 22 is in contact with the front plate 18a of the partition wall 18 along the front plate 18a. Then, a decorative plate 2 is attached to the outer box 11 so as to cover the front surface of the partition portion dew-proof pipe 22.
3 is installed. In addition, 24 is the outer box 11 and the inner box 15.
It is a foam insulation material filled with foam between the

Next, the procedure for assembling the above structure will be explained with reference to FIGS. 1 and 4.

(A) The dew-proof pipe 14 is placed on the flange portion 1-3 of the first step outer box 11. In this case, two protrusions 14a each.

As shown in FIGS. 1 and 3, 14a projects approximately 30 mm from the edge of the front opening 12 of the outer box 11, and projects obliquely forward at an angle of approximately 20 degrees.

(B) Insert the inner box 15 into the outer box 11 in the second step. That is, the inner box 15 is inserted into the outer box 11 from the front through the front opening 12 by deforming its sides to avoid the protrusions 14a, 14a, and the flange 17 of the front opening 16 is removed. It fits into the flange portion 13 of the box 11.

(C) Third step A partition wall 18 is inserted into the inner box 15.

(D) Fourth step The partition line dew-proof pipe 22 is brazed to the dew-proof pipe 14 by high-frequency induction heating. That is, as shown in FIG. 1, the enlarged diameter part 22a of the partition wire dew prevention pipe 22 is fitted into the protruding part 14a of the dew prevention pipe 14, and a ring-shaped solder is placed at the end of the fitted part. The material 25 is fitted in advance. An oscillator 26. shown in FIG. High frequency cable 27. High frequency conversion transformer 28 and U-shaped high frequency work coil 29
A high-frequency work coil 29 of a high-frequency induction heating device 30 consisting of the following is arranged, and a high-frequency current is passed through the high-frequency work coil 29. As a result, the fitting portion of the protruding portion 14a of the dew prevention pipe 14 and the enlarged diameter portion 22g of the partition wire dew prevention pipe 22 is heated by induction, and the brazing material 25 is melted to cause the enlarged diameter portion 22g to melt.
a is brazed to the protrusion 14a. The working time per this Ill point is that the capacity of the high frequency induction heating device 30 is 100
In the case of KHz, 5KW, it is completed in about 5 seconds. Note that during this high-frequency induction heating, the inner box 15 and the front plate 18a are not heated by induction because their magnetic permeability is different.

(E) Fifth step Partition line The dew prevention pipe 22 is placed along the front plate 18a of the partition 918. That is, the protruding portion 14a is bent in the direction of arrow A, and the partition portion dew prevention knob 5 rib 22 is brought into contact with the front plate 18a of the partition wall 18.

(F) Attach the decorative plate 23 to the outer box 11 so as to cover the front surface of the dew-proof pipe 22 of the sixth stage partition.

According to the above embodiment, the following effects are achieved. That is, since there is no need to bend the substantially U-shaped partition line dew prevention pipe 22 on the dew prevention pipe 14, the dew prevention pipe 14 can be manufactured easily. In addition, since the inner box 3 can be inserted and installed with the dew-proof pipe 14 placed in the outer box 1, this is different from the conventional method in which the partition pipe section 2a of the dew-proof pipe 2 is bent forward at a substantially right angle. Unlike this, the assembly of the dew-proof pipe 14 becomes easier.

Furthermore, the partition line dew prevention pipe 22 is attached to the front plate 18 of the partition wall 18.
The angle at which the protrusion 14 is bent to align with a is also approximately 20°.
Therefore, the dew-proof pipe 14 and the partition line dew-proof pipe 2
The second material also does not require good flexibility, and it is possible to freely select iron pipes, etc., without being limited to copper pipes, and material costs can be reduced.

The present invention is not limited to the embodiments described above and shown in the drawings; for example, the fourth step may be performed before the third step. If you do this, it's a partition! 218 does not get in the way of the high frequency work coil 29, the protrusion 14a
There is no need to incline it by about 20" in advance, making assembly even easier.

[Effects of the Invention] As is clear from the above description, the present invention has a substantially U-shaped protrusion that protrudes from a part of the dew prevention pipe arranged along the inner surface on the front opening side of the outer box. Since the dew-proof pipes with partition lines are connected by high-frequency induction heating brazing, the production and assembly of the dew-proof pipes is easy, and there are no restrictions on the material of the dew-proof pipes, reducing material costs. This has the effect that it is also possible to reduce the

[Brief explanation of drawings]

Figures 1 to 4 show an embodiment of the present invention. Figure 1 is a cross-sectional view taken along lines 1 and -1 in Figure 3 in the brazing state, and Figure 2 is in the assembled state. Equivalent figure from last time,
FIG. 3 is a perspective view of the upper part of the refrigerator, FIG. 4 is a perspective view of a high frequency induction heating device, and FIG. 5 is a view corresponding to FIG. 3 of a conventional example. In the figure, 11 is an outer box, 12 is a front opening, 13 is a flange, 14 is a dew-proof pipe, 14a is a protrusion, 15 is an inner box,
16 is a front opening, 18 is a partition wall (partition part), 22 is a partition part dew prevention pipe, 25 is a brazing material, 29 is a high frequency work coil, and 30 is a high frequency induction heating device. Applicant: Toshiba Corporation

Claims (1)

[Claims] 1. An outer box with an open front, arranged along the inner surface of the outer box on the front opening side, and having a part of the side surface of the outer box cut off and both ends protruding from the front opening. a dew-proof pipe formed on a protrusion, an inner box installed inside the outer box and partitioned into upper and lower parts by a partition part, and having a substantially U-shape, and after the inner box is attached, the dew-proof pipe protrudes. What is claimed is: 1. A refrigerator comprising: a partition dew-proof pipe connected to the partition portion by high-frequency induction heating brazing and extending along the partition portion.