JP2000292053A - Refrigerator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To recyclably wire leads and to prevent leakage of cold gas in a storage chamber by covering leads of an electrical unit wired through an outer case having a control board containing portion and an inner case opposed to the outer case, and arranging a lead covering portion radially contracted by a foaming pressure when a heat insulator is filled. SOLUTION: Leads 12 from a temperature sensor 8, a fan motor disposed in a storage chamber 6 of the refrigerator are bundled, passed through a hole 13 of an inner case 1, and the hole 13 is then sealed by a sealing material 23. The leads 12 corresponding to a thickness between the cases 1 and 2 are covered with a lead covering portion 21, and fixed with an adhesive material. Further, an end side of the leads 12 is passed through a hole 16 of the case 2, and the hole 16 is then sealed by a sealing material. When the case 1 is engaged with the case 2 and a cabinet of the refrigerator is assembled, the leads 12 are covered with the portion 21. Thereafter, a heat insulator 3 is filled in the cabinet, and the portion 21 is radially contracted by its foaming pressure to eliminate a gap with the leads 12.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to wiring of lead wires in a heat insulating box of a refrigerator.

[0002]

2. Description of the Related Art FIG. 7 is a side sectional view showing an example of a conventional refrigerator, and FIG. 8 is an enlarged sectional view of a portion A shown in FIG. This conventional refrigerator is provided in a control board 7 installed in a control board storage unit 5 formed on the upper rear surface of the outer box 2, and in each storage room 6, which is not shown, but is partitioned by a heat insulating partition wall 4. A temperature sensor 8, a fan motor 9 and a cooler 10, a compressor 11 installed at the bottom rear of the refrigerator, and the like. The control board 7 and the temperature sensor 8, and the control board 7 and the fan motor 9 and the compressor 11 Is the lead wire 12
Connected through. Each lead wire 12 penetrates through holes 13, 14, 15 provided in the inner box 1 and the outer box 2, and is wired between the inner box 1 and the outer box 2 so as to be connected to the outer box of the control board storage unit 5. The two holes 16 respectively penetrate. Each hole 13
16 to 16 are provided with a sealing material 15 so that the insulating material 3 such as urethane foam does not leak into the control board storage unit 5 or the storage room 6 when filled.

[0003]

However, in the above-mentioned conventional refrigerator, since the recyclable lead wires 12 are buried in the heat insulating material 3, the lead wires 12 are removed when the used refrigerator is disassembled. Was very difficult.
As a technique for solving this problem, Japanese Patent Application Laid-Open No. 4-225776 discloses a technique in which a cylinder is provided between the inner box 1 and the outer box 2 and the lead wire 12 is passed through the cylinder. Since the body is not sealed with a cool air, the cool air may leak to the outside.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems, and has as its object to provide a refrigerator which recycles lead wires and prevents leakage of cool air in a storage room.

[0005]

According to a first aspect of the present invention, there is provided a refrigerator having a control board storage section formed in an outer box, wherein the outer board of the control board storage section is opposed to the outer box. A lead wire cover is provided to cover the periphery of the lead wire of the electrical component wired through the inner box and to reduce the diameter by the foaming pressure of the heat insulating material when the heat insulating material is filled.

In the refrigerator according to the second aspect of the present invention, the lead wire disposed between the inner box and the outer box is sealed in the inner box and / or the outer box depending on the installation position of the electric component. Is provided with a sheet material to be fixed.

In the refrigerator according to a third aspect of the present invention, the wiring display portion indicating the wiring route of the lead wire determined according to the installation position of the electric component is provided on each of the inner box and the outer box or on either one of the two sides. It is provided in.

In a refrigerator according to a fourth aspect of the present invention, the wiring display portion is formed of a slit formed so as to oppose each side or both sides of the inner box and the outer box.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 FIG. FIG. 1 is a detailed sectional view of a main part of a refrigerator showing a first embodiment of the present invention, and FIG. 2 is a sectional view taken along line AA in FIG. Note that the same or corresponding parts as those in the conventional example described with reference to FIGS. 7 and 8 are denoted by the same reference numerals, and description thereof is omitted. In the figure, reference numeral 21 denotes a lead wire cover portion made of, for example, a semi-cylindrical soft resin (for example, polystyrene foam) opposed thereto, and an inner box connected to the control board 7 installed in the control board storage section 5. After covering the lead wire 12 between 1 and the outer box 2, both are fixed with an adhesive 22 (see FIG. 2). 23 is each hole 13, 1 of the inner box 1 and the outer box 2
6 is a sealing material that seals a gap formed when the lead wire 12 is made to penetrate the lead wire 6 in order to prevent leakage at the time of filling the heat insulating material. The lead wire 12 has a core wire of copper, tin, or the like, and is covered with polyethylene, vinyl chloride, a fluororesin, or the like.

In the refrigerator of this embodiment configured as described above, for example, the lead wires 12 from the temperature sensor 8 and the fan motor 9 installed at a predetermined position in the storage room 6 are used.
Are bundled and passed through the hole 13 of the inner box 1, the hole 13 is sealed with a sealing material 23, and then the lead wire 12 corresponding to the thickness between the inner box 1 and the outer box 2 is covered with the lead wire cover 21. Then, both ends are fixed with an adhesive material 22, and the leading end side of the lead wire 12 is made to pass through the hole 16 of the outer box 2, and the hole 16 is sealed with a sealant 23. Then, when the inner box 1 is fitted to the outer box 2 to assemble a refrigerator box, the lead wire 12 between the inner box 1 and the outer box 2 is formed by the lead wire cover 21 as shown in FIG. It will be covered. In this state, when the heat insulating material 3 such as urethane foam is filled from a predetermined position of the box, the lead wire cover portion 21 is reduced in diameter by the foaming pressure of the heat insulating material 3,
Eliminate the gap with the internal lead wire 12. When the heat insulating material 3 is solidified, the heat insulating material 3 is fixed.

As described above, the lead wire cover 21 covering the lead wire 12 between the inner box 1 and the outer box 2 eliminates the gap between the lead wire 12 and the heat insulating material 3 due to the foaming pressure. The flow of air between the section 5 and the storage room 6 is blocked, and therefore, there is an effect that a rise in temperature in the storage room 6 due to cold air leakage and dew condensation in the control board storage section 5 can be prevented.

When the used refrigerator is disassembled, the lead wire 12 between the inner box 1 and the outer box 2 is connected to the lead wire cover 2.
1, the lead wire 1 on the control board 7 side is cut with a nipper, a cutter, or the like, so that the lead wire cover 21 can be easily cut from the storage chamber 6 side. Therefore, the lead wire 12 can be pulled out without damaging the coating, and the lead wire 12 can be recycled.

In the first embodiment, the lead wire 12 between the inner box 1 and the outer box 2 is formed by using the lead wire cover 21 which is made of a semi-cylindrical soft resin facing the soft resin.
Is separated from the heat insulating material 3, but a more flexible foam rubber or the like may be used for the lead wire cover. For example, as shown in FIGS. 3 and 4, one end of a lead wire cover portion 21 a made of foamed rubber is attached together with the lead wire 12 to the inner box 1.
, And the hole 13 is sealed from the storage room 6 side, and the lead wire 12 corresponding to the thickness between the inner box 1 and the outer box 2 is covered and fixed with an adhesive 22 (see FIG. 4). At the time of assembling the body, the other end is inserted into the hole 16 of the outer box 2 together with the lead wire 12, and the hole 16 is sealed from the control board housing part 5 side.

In this case, since the sealing material 23 is not required, the number of working steps is reduced, and the lead wire cover 21a is soft.
a and the gap between the lead wire 12 therein is surely eliminated,
Further, when the refrigerator is disassembled, the lead wire cover 21a is soft as described above, so that there is an effect that the lead wire 12 can be easily pulled out without damaging the coating.

In addition, although it has been described that a soft resin or a flexible foam rubber is used for the lead wire cover, paper may be used for the lead wire cover instead. When paper is used for the lead wire cover, there is a gap between the holes 13 and 16 of the inner box 1 and the outer box 2.
Close the gap with 3.

Also in this case, the foaming pressure of the heat insulating material 3 eliminates the gap between the paper lead wire cover portion and the lead wire 12 therein, so that the cool air does not leak from the storage room 6 and the refrigerator is disassembled when disassembled. The lead wire 12 can be easily pulled out.

Embodiment 2 FIG. FIG. 5 is a detailed sectional view of a main part of a refrigerator showing a second embodiment of the present invention, and FIG.
It is C sectional drawing. The same or corresponding parts as those in the first embodiment described with reference to FIGS. 1 to 4 are denoted by the same reference numerals, and description thereof is omitted. In the drawing, reference numeral 24 denotes, for example, a paper tape or a polyester tape having an adhesive material on one side, and the space between the inner box 1 and the outer box 2 formed by fitting the inner box 1 to the outer box 2 is used as a wiring path. A sheet material for separating the lead wire 12 of the electrical component from the heat insulating material 3 filled between the lead wire 12 and the lead wire 12 that passes through the hole 13a of the inner box 1 from the storage room 6 side as shown in FIG. In addition, both ends of the sheet material 24 are fixed to the inner wall so as to be surrounded by the inner wall of the inner box, and the holes 13
The hole 13a is fixed around the periphery of the hole a. In addition, outer box 2
For the lead wire 12 wired on the side, both ends of the sheet material 24 are fixed to the inner wall so as to be surrounded by the inner wall of the outer box.

Reference numeral 25 denotes a pair of slits formed by making cuts in the inner walls of the inner box 1 and the outer box 2. The slit 25 indicates the fixed position of the lead wire 12 and the wiring path, and the interval is wider than the width of the lead wire 12 provided side by side (see FIG. 6). Reference numeral 26 denotes a slit provided on the outer wall of the inner box 1 and the outer box 2 so as to face the slit 25. The wiring path of the lead wire 12 wired inside can be understood from the slit 26.

In the second embodiment, the holes 13a of the inner box 1
Lead wire 12 which passes through to lead wire cover 21a side
Then, the lead wires 12 wired to the outer case 2 side and reaching the lead wire cover portion 21a side are respectively inserted into the pair of slits 25 stamped on the inner walls of the inner case 1 and the outer case 2 so as to fit between the pair of slits 25. It is fixed to the inner wall at both ends to make a sealed state. The hole 13a on the inner box 1 side is fixed around the hole 13a to close the hole 13a. In this state, when the heat insulating material 3 is filled, the sheet material 24 prevents the intrusion into the lead wire 12 and the outflow to the storage room 6 side.

Thus, the lead wire 12 is connected to the inner box 1 and the outer box 2
Between the pair of slits 25 provided on each inner wall of the sheet material 24
, Respectively, so that they can be separated from the heat insulating material 3. Further, a pair of slits 26 showing the wiring route of the lead wire 12 are formed on the outer walls of the inner box 1 and the outer box 2.
Is provided, when the used refrigerator is disassembled, the arrangement of the lead wires 12 can be easily understood. Further, since a pair of slits 25 are provided on the inner wall side at the same position as the slits 26, a cutter or the like is provided. The inner box 1 can be easily peeled off without damaging the inner lead wire 12 and the lead wire 12 attached to the sheet material 24 is exposed, so that it can be easily pulled out. effective.

[0021]

As described above, according to the first aspect of the present invention, the periphery of the lead wire of the electrical component wired through the outer box portion of the control board storage portion and the inner box facing the outer box portion. When filling the heat insulating material, the lead wire cover part which reduces the diameter by the foaming pressure of the heat insulating material and eliminates the gap with the covered lead wire is provided, so the air flow between the inner box side and the control board storage part Therefore, it is possible to prevent an increase in the temperature in the storage chamber on the inner box side due to the leakage of the cool air and a dew condensation in the control board storage portion. Also, when dismantling the used refrigerator,
Since the lead wire between the inner box and the outer box is separated from the heat insulating material by the lead wire cover, the lead wire can be easily pulled out, and there is an effect that the lead wire can be recycled.

According to the invention of claim 2 of the present application, the lead wire disposed between the inner box and the outer box is sealed in the inner box and / or the outer box depending on the installation position of the electric component. Since the sheet material to be fixed is provided, the lead wire can be separated from the heat insulating material. Therefore, when the used refrigerator is disassembled, the lead wire can be easily pulled out and the lead wire can be recycled.

According to the invention of claim 3 of the present application, the wiring display portion indicating the wiring route of the lead wire determined according to the installation position of the electrical component is provided on each of the inner box and the outer box, or on either one of the two sides. Since the arrangement of the lead wires can be easily understood, when the used refrigerator is disassembled, the inner box and the outer box can be cut with a general-purpose tool using the wiring display portion as a guide without damaging the lead wires. In this case, there is an effect that the lead wire attached to the sheet material can be easily pulled out because the lead wire is exposed.

According to the invention of claim 4 of the present application, since the slits formed opposite to both surfaces of the inner box and the outer box or one of both surfaces are used as the wiring display section, the arrangement of the lead wires is easy. When the used refrigerator is disassembled, slits are provided at the same position on the inside, so it can be cut easily with a general-purpose tool and without damaging the internal lead wires. This leads to an effect that the lead wire adhered to the substrate can be easily drawn out.

[Brief description of the drawings]

FIG. 1 is a detailed sectional view of a main part of a refrigerator showing a first embodiment of the present invention.

FIG. 2 is a sectional view taken along line AA in FIG.

FIG. 3 is a detailed sectional view of a main part of a refrigerator showing another embodiment.

FIG. 4 is a sectional view taken along line BB in FIG.

FIG. 5 is a detailed sectional view of a main part of a refrigerator according to a second embodiment of the present invention.

FIG. 6 is a sectional view taken along the line CC in FIG.

FIG. 7 is a side sectional view showing an example of a conventional refrigerator.

FIG. 8 is an enlarged sectional view of a portion A shown in FIG. 7;

[Explanation of symbols]

1 inner box, 2 outer box, 3 heat insulating material, 5 control board storage section, 6 storage room, 7 control board, 8 temperature sensor, 12
Lead wire, 13 Inner box hole, 16 Outer box hole, 21
Lead wire cover, 22 adhesive, 23 sealant, 2
4 Sheet materials.

Claims (4)

[Claims] 1. A refrigerator having a control board storage section formed in an outer box, wherein lead wires of electrical components are wired through the outer box of the control board storage section and the inner box opposed thereto. A refrigerator, characterized in that a lead wire cover portion is provided which covers the periphery of the housing and which is reduced in diameter by the foaming pressure of the insulating material when the insulating material is filled. 2. A sheet material for fixing a lead wire disposed between an inner box and an outer box to the inner box and / or the outer box in a sealed state in accordance with the installation position of the electric component. The refrigerator according to claim 1, wherein: 3. A wiring display unit, which indicates a wiring route of a lead wire determined according to an installation position of an electric component, is provided on each of both sides of the inner box and the outer box or at least one of both sides. Item 3. The refrigerator according to Item 2. 4. The refrigerator according to claim 3, wherein the wiring display unit comprises a slit formed on each of both sides of the inner box and the outer box or on one of both sides.