JPH04117373U - insulation box body - Google Patents

Abstract

(57) [Summary] [Purpose] When inserting electrical wiring material into the space between the outer box and the inner box of a heat-insulating box used in a refrigerator, and filling this space with foam insulation material, Prevents cavities in the insulation material due to the presence of wiring materials. [Structure] The electrical wiring material 14 is formed into a band shape and is brought into close contact with the outer box 11 or the inner box 12. [Effect] Prevents injection inhibition of the heat insulating material 15 and improves fluidity.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention has an electrical wiring structure in a heat insulating material such as hard polyurethane foam. The present invention relates to insulation boxes for refrigerators, etc.

0002

[Conventional technology]

Conventionally, insulating boxes filled with foam insulation material 1 such as urethane foam, etc. In this case, there is an electrical control circuit coming out from the control circuit 4 between the outer box 2 and the inner box 3 shown in FIGS. 5 and 6. Bundle several conductive wires 5 together and secure them with tape, etc., and connect them to each switch, motor, etc. This makes it possible to control the supply of electricity. In this state, there is a window between the outer box 2 and the inner box 3. It was filled with a foamed heat insulating material 1 such as retanfoam.

0003

[Problem that the idea aims to solve]

In the conventional insulation box, a plurality of conductive wires 5 are bundled three-dimensionally, and the insulation material 1 is A relatively large void 6 (bore) is formed around the conductive wire 5 of the heat insulating material 1, which inhibits fluidity during injection. id) was likely to occur, causing a decline in insulation properties.

0004 In particular, when used as a refrigerator, not only will there be problems with cooling performance, but also , Moisture in the air inside void 6 is exposed due to cooling, and the generated water droplets provide electrical insulation. It sometimes caused problems with sexuality.

[0005] In view of the above-mentioned problems, the present invention has been developed to create a heat insulating box that can prevent voids from occurring in the heat insulating material. For the purpose of providing.

[0006]

[Means to solve the problem]

The problem solving means according to claim 1 of the present invention is as shown in FIGS. A box 12 is provided, and electricity is supplied to a space 13 formed between the outer box 11 and the inner box 12. The wiring material 14 is wired and the space 13 is filled with a heat insulating material 15 to form a heat insulating box body. The electrical wiring material 14 is placed in the outer box 11 to prevent injection of the heat insulating material 15 from being inhibited. Or, it is arranged in close contact with the inner box 12.

[0007] The problem solving means according to claim 1 of the present invention is that the electrical wiring material 14 according to claim 1 is A belt-shaped wire with several conductive wires arranged in parallel on one plane is used.

[0008]

[Effect]

In the problem solving means according to claim 1, the electrical wiring material 14 is removed from the outer box during assembly. 11 or the inner box 12.

[0009] Further, in the problem solving means according to claim 2, as the electrical wiring material 14, a plurality of A band-shaped object in which conductive wires are arranged parallel to each other on one plane is tightly attached to the outer box 11 or the inner box 12. and wire it.

0010 Due to these, when injecting the heat insulating material 15 into the space 13, the electrical wiring material 14 is insulated. This prevents the flow of the material 15 from being obstructed.

[0011]

【Example】

Hereinafter, one embodiment of the present invention will be described based on the drawings. Figure 1 shows this invention in a refrigerator. A vertical cross-sectional view showing an example of the heat insulating box used, FIG. 2 is a cross-sectional view thereof, and FIG. 4 is a rear perspective view of the outer box, and FIG. 4 is a front perspective view of the inner box.

0012 As shown in the figure, the heat insulating box of this example is used for refrigerators, etc. An inner box 12 is provided inside the box 11, and is formed between the outer box 11 and the inner box 12. Electrical wiring material 14 for controlling each part is wired in the space 13, and a heat insulating material 15 is installed in the space 13. It is filled.

[0013] The outer box 11 is formed into a box shape with an open front using a plurality of metal plates, as shown in FIGS. 1 to 3. has been completed. At the periphery of the opening 16 on the front surface of the outer box 11, as shown in The outer flange 17 is attached.

[0014] The inner box 12 is a box body with an opening formed in the front, as shown in FIGS. 1, 2, and 4. It is divided into an upper chamber 18 and a lower chamber 19, and around the front of both chambers 18 and 19 there is an external An inner flange 21 facing towards the side is attached.

[0015] As shown in FIGS. 1 and 2, the space portion 13 is formed so that the inner flange 21 of the inner box 12 is located outside the inner box 12. It is formed when the outer box 11 is fitted so as to overlap the flange 17, and is shown in Fig. 3. As shown, except for the injection port 22 of the heat insulating material 15 provided on the back of the outer box 11, has been done.

[0016] As shown in FIG. This is for connecting the motor, door switch, temperature sensor, etc. Conductive wires are arranged in parallel on one plane and sandwiched from both sides with insulating resin tape, etc. It is fixed in a band shape by being embedded (flexible wiring). . An adhesive material is applied to one side of the electrical wiring material 14 to prevent injection of the heat insulating material 15 from being inhibited. It is closely adhered to the back and side surfaces of the inner box 12 so that And the electrical wiring The terminals at each tip of the material 14 are connected to the space 1 through small holes (not shown) in the outer box 11 and inner box 12. 3, that is, outside the outer box 11 or inside the inner box 12. It is connected to the control circuit section 23 and the like.

[0017] The heat insulating material 15 (hard urethane foam material) has viscosity during the filling operation. It is a liquid that has the property of foaming as it cools after being filled. The insulation material 15 is injected from the injection port 22 on the back of the outer box 11 using an injection device.

[0018] In the above configuration, when assembling, first, the upper chamber 18 and the lower chamber 1 of the inner box 12 are 9 as shown in FIG. 4, and while deforming the inner flange 21 inward, as shown in FIG. The interior is placed in the outer box 11.

[0019] At this time, as shown in Figs. The electrical wiring material 14 is adhered to the back surface of the inner box 12 with an adhesive material, and the electrical wiring material 14 is Each terminal of the wiring material 14 is routed outside the space 13.

[0020] Then, the heat insulating material 15 is injected through the injection port 22 formed at the back of the outer box 11.

[0021] At this time, the electrical wiring material 14 is arranged in close contact with the outer box 11 or the inner box 12. Therefore, it is possible to prevent the electrical wiring material 14 from obstructing the flow of the heat insulating material 15.

[0022] Therefore, cavities around the electrical wiring material 14, which tend to occur in the past, are eliminated. id) can be prevented from occurring, and the insulation properties of the insulation box can be improved. Especially as a refrigerator. When used in a vacuum, the cooling performance can be improved.

[0023] After that, as shown in Figure 1, each component such as the control circuit section 23 and fan motor is placed in the desired position. to connect each terminal of the electrical wiring material 14 routed outside the space 13. Bye.

[0024] It should be noted that the present invention is not limited to the above-mentioned embodiments, but may be modified within the scope of the present invention. Of course, many modifications and changes may be made to the embodiments described.

[0025] For example, in the above embodiment, the electrical wiring material 14 was brought into close contact with the inner box 12, but the It may be brought into close contact with the box 11.

[0026]

[Effect of the idea]

As is clear from the above explanation, according to claim 1 of the present invention, the electrical wiring material is Since it is in close contact with the inner box, injection inhibition can be prevented when injecting the insulation material.

[0027] According to claim 2, a plurality of conductive wires are used as an electrical wiring material for various controls. Since the wires are wired in strips arranged parallel to each other on a flat surface, it is difficult to Improve liquidity.

[0028] Based on the above, the occurrence of cavities around electrical wiring materials, which tended to occur in the past, has been confirmed. It is an excellent material that can prevent heat generation and improve the insulation and cooling performance of the insulation box. effective.

[Brief explanation of drawings]

FIG. 1 is a longitudinal sectional view showing an embodiment of a heat insulating box body in which the present invention is used in a refrigerator.

FIG. 2 is also a cross-sectional view thereof.

FIG. 3 is a rear perspective view of the outer box.

FIG. 4 is a front perspective view of the inner box.

FIG. 5 is a longitudinal sectional view of a conventional heat insulating box.

FIG. 6 is a cross-sectional view thereof.

[Explanation of symbols]

11 Outer box 12 Inner box 13 Space part 14 Electrical wiring materials 15 Insulation material 24 Conductive wire

Claims (2)

[Scope of utility model registration request] [Claim 1] An inner box is provided inside an outer box, an electrical wiring material is wired in a space formed between the outer box and the inner box, and the space is filled with a heat insulating material. A heat insulating box body, wherein the electrical wiring material is disposed in close contact with the outer box or the inner box to prevent injection of the heat insulating material from being inhibited. 2. A heat insulating box according to claim 1, wherein the electrical wiring material is a band-shaped electrical wiring material in which a plurality of conductive wires are arranged in parallel on one plane.