JPS61285366A - Heat-insulating box body for refrigerator, etc. - 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] Industrial applications The present invention relates to a heat insulating box for a refrigerator or the like.

2. Description of the Related Art In modern insulated boxes such as refrigerators, the condenser that forms part of the cooling cycle is not exposed on the main body, but a pipe serving as the condenser is buried inside the main body. . After an outer box comprising both sides, a bottom surface, a top surface, and a back surface was formed, it was fixed with a condensation pipe and aluminum foil.

Problems to be Solved by the Invention However, in the case of such an insulating box in which the condensing pipe is fixed with aluminum foil or the like and fixedly arranged after forming the outer box, the work of fixing the condensing pipe is done in one place such as the outer box. Since it is carried out within a limited size range, the workability is difficult and very time-consuming, and very expensive pasting materials such as aluminum foil δ are required. It is also difficult to do so manually, and there are problems in that the aluminum foil is applied unevenly and the heat dissipation effect is unstable.

The present invention solves these conventional problems.Before forming the outer box, the condensation pipe is fused and assimilated to both left and right sides with hot melt adhesive, so the work of fixing the condensation pipe is easy. The purpose of the present invention is to provide an insulating box equipped with a condenser that is easy to use, shortens working time, easy to automate, reduces direct materials and man-hours, and has a stable heat dissipation effect.

Means for Solving the Problems In order to achieve the above object, the insulating box body of the present invention includes an outer panel, a top panel, a back panel, a right side condensation pipe, a left side condensation pipe, an inner box, and a foam insulation material. , the right side condensation pipe is attached to the right side of the outer plate forming the bottom plate, the right side and the left side, and the left side condensation pipe is attached to the left side of the outer plate, which are made of ethylene vinyl acetate (EVA) and softened to a so”0 or higher. One end of each of the right side condensing pipe and the left side condensing pipe is connected to the back plate by fusion and hardening with a hot melt adhesive that has a dot and does not solidify or tack at room temperature. Together with the top plate, it constitutes an outer box.

Function: The heat insulating box of the present invention facilitates the work of fixing the condensing pipe, shortens the working time, facilitates the connection of one end of each of the left and right condensing pipes, and has a stable heat dissipation effect.

EXAMPLE Hereinafter, an example of the present invention will be explained based on FIGS. 1 to 3.

1 is the outer plate, 2 is the top plate, 3 is the back plate, these make the outer box 4
It consists of 5 is an inner box, and 6 is a foamed heat insulating material filled between the two boxes at 4°6. Further, the outer plate 1 is composed of a right side surface 7, a left side surface 8, and a bottom surface 9. The right side condensing pipe 1o and the left side condensing pipe 11 have a plurality of folds, and are formed by pressing a round vibrator into a flat pipe. Both pipes 10 and 11 are coated with a hot-melt adhesive 12 made of ethylene vinyl acetate that has a softening point of 90°C or higher and does not harden or tack at room temperature using a roll coater or the like. The adhesive 12 applied surface of the condensing pipe 10 is attached to the right side 7 of the flat outer panel 1, and the left side condensing pipe 11
Attach the surfaces coated with adhesive 12 to the left side surface 8, respectively.
The adhesive 12 is melted by applying pressure and heating with a presser plate such as a hot press that has been heated in advance, and is then cooled, so that the adhesive 12 is applied to the right side 7 and left side 8 of the outer panel 1 on the right side. They are fixedly disposed on the surface condensation pipe 10 and the left side condensation pipe 11, respectively. Then, the outer plate 1 is bent into a U shape to form a right side surface 7 and a left side surface 8 with the bottom surface 9 as the center. Then, one end 10a of the right side condensing pipe 1° and one end 11a of the left side condensing pipe 11 are connected at the top surface. Then, assemble the inner box 5, back plate 3, and top plate 2 in this order, and fill the space between the inner box 6 and outer box 4 with foam insulation material 6, and then fill the right side condensing pipe 1.
゜ and the left side condensation pipe 11 are backing up.

Therefore, ``(1) The work of fixing the condensing pipes 11 and 12 can be done with the outer plate 2 in a flat state, and the work is simple, the work time is shortened, automation is easy, and direct materials and man-hours are reduced. I can figure it out.

(2) With the condensing pipes 11 and 12 fixedly arranged on both sides 7 and 8, the outer plate consisting of the bottom surface 9 and both sides 7 and 8 can be bent in a U shape. Since the right side condensing pipe 1o and the left side condensing pipe 11 can be connected at the top surface, automation is easy and direct materials and man-hours can be reduced.

(3) The adhesion and assimilation of the condensing pipes 11 and 12 is reliable, heat conduction is improved, and a stable heat dissipation effect can be obtained.

Effects of the Invention As described above, according to the heat insulating box for a refrigerator or the like of the present invention, the following effects can be obtained.

0) The work of fixing the condensing pipe is simple and the work time can be shortened, and automation is easy, reducing direct materials and man-hours.

(2) The condensing pipe is firmly bonded and solidified, has good heat conduction, and has a stable heat dissipation effect.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of a heat insulating box according to an embodiment of the present invention, FIG. 2 is an exploded perspective view of FIG. 1, and FIG. 3 is a side sectional view of FIG. 2. 1... Outer plate, 2... Top plate, 3...
... Back plate, 5 ... Inner box, 6 ... Foam insulation material, 7 ... Right side, 8 ... Left side,
9...Bottom, 1Q...Right side condensation pipe, 11...Left side condensation pipe, 12...
··glue. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
figure! Figure 2/--Buto Lya 2-m-Ten version 7-11 stone da 1 side 8--1 left side 1 side 9-m-bottom 111

Claims (1)

[Claims] a right side surface of said outer panel comprising an outer panel, a top panel, a back panel, a right side condensation pipe, a left side condensation pipe, an inner box and a foam insulation material, forming a bottom plate, a right side surface and a left side surface; The right side condensation pipe is fused to the left side, and the left side condensation pipe is fused and solidified to the left side with an ethylene vinyl acetate-based hot melt adhesive that has a softening point of 90°C or higher and does not solidify or tack at room temperature. A heat insulating box body for a refrigerator or the like, which is equipped with a condenser, and has one end of each of the right side condensing pipe and the left side condensing pipe connected at the top part, and an outer box is formed by the back plate and the top plate.