JP3107128B2 - Sheet wire insulation structure and insulation method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an insulation structure and an insulation method for a sheet electric wire in which a plurality of electric wires used for a wire harness or the like constituting an electric circuit of a vehicle are arranged in parallel on an insulating sheet.

[0002]

2. Description of the Related Art It has been proposed to use a sheet electric wire having a plurality of electric wires arranged in parallel on an insulating sheet as a wire harness constituting an electric circuit of a vehicle. For example, in the specification of Japanese Patent Application No. 5-228422 filed by the present applicant, an insulating partition wall a and an insulating partition plate as shown in FIG. It describes that insulation between the folded insulating sheets c is performed with the interposition of b or the like.

[0003] Also, Japanese Patent Application No. Hei.
As shown in FIG. 11, in the case where the trunk wire e is folded by connecting a trunk wire d constituting a wire harness and a branch wire e branched from the trunk wire d with an insulating sheet f interposed therebetween, as shown in FIG. And an insulating sheet f is superimposed on the case and accommodated in the case.

[0004] However, the insulating partition wall a and the insulating partition plate b, which are the above-described insulating structure of the sheet wire, ensure insulation between the insulating sheets c, but the wires h arranged side by side with the insulating sheets c. There is no insulating effect between each other. The same applies to the case where the insulating sheet f is interposed between the trunk wire d and the branch wire e shown in FIG. For this reason, a failure may occur in which the wires arranged side by side on the insulating sheet c or f contact each other, and it is necessary to increase the distance between the wires in order to prevent the wires from contacting each other and secure insulation. However, there is a disadvantage that the structure of the sheet electric wire is increased in size.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and the insulation between the electric wires arranged in parallel on the insulating sheet is ensured, so that miniaturization and high density are achieved. An object of the present invention is to provide an insulating structure and an insulating method for a sheet wire that can be provided.

[0006]

Means for Solving the Problems] To achieve the above object, the insulation structure of sheet wire according to claim 1, arranged to length towards the sheet wires formed by a plurality of electric wires to the insulation sheet
It is an insulation structure of a bundled sheet wire folded and bundled in the direction, between adjacent wires of wires constituting the sheet wire or
A gel insulator is interposed between the opposing electric wires .

[0007] The insulating structure of sheet wire as set forth in claim 2 is the insulation structure of a focusing sheet wire which is focused by folding sheet wire in the longitudinal direction formed by juxtaposed a plurality of electric wires to the insulating sheet, The opposite electric wire of the electric wire constituting the sheet electric wire
It is characterized in that a gel insulator and a heat dissipating material are interposed between the wires . It is preferable that a heat dissipation conductive wire be connected to the heat dissipation material so that the heat absorbed by the heat dissipation material is led to the outside (claim 3).

According to a fourth aspect of the present invention, there is provided a method for insulating a sheet electric wire, wherein a plurality of electric wires are juxtaposed on an insulating sheet when the sheet electric wires are folded in a longitudinal direction to be bundled, and a gel-like insulation is provided between the sheet electric wires. It is characterized in that it is folded with a body interposed and fixed by pressing.

According to a fifth aspect of the present invention, there is provided a method for insulating a sheet electric wire, wherein a plurality of electric wires are juxtaposed on an insulating sheet when the sheet electric wires are folded in a longitudinal direction to be bundled, and a gel-like insulation is provided between the sheet electric wires. While interposing the body and the heat dissipation material,
The heat-dissipating conductive wire connected to the heat-dissipating material is led out, folded, pressurized and fixed. It is preferable that a heat dissipation conductive wire is connected to the heat dissipation material so that the heat absorbed by the heat dissipation material is led to the outside (claim 6).

[0010] It is preferable that the sheet electric wire is formed of a group of main electric wires constituting a wire harness and a group of branch electric wires branched from the main electric wire.

[0011]

According to the present invention , a plurality of electric wires are arranged on an insulating sheet.
Folds the bundled sheet wires in the length direction to converge
At this time, a gel insulator is interposed between the sheet wires.
Is folded, so the electric wires that make up the sheet electric wire
A gel insulator is interposed between the opposing wires, and the wires
Blocked, insulation between the wires is ensured. In addition, the sea
Fold them together with a gel-like insulator between
Wire that composes the sheet wire by pressing and fixing
The gap between adjacent electric wires or the space between the opposing electric wires is filled with a gel-like insulator to prevent the electric wires from contacting each other, thereby ensuring insulation between the electric wires.

As the gel insulator, silicone gel is preferable, and those used for vibration insulators and cushioning materials can be used. The basic structure of silicone gel is a dimethyl siloxane polymer cross-linked by chemical bonding to give an intermediate property between silicone rubber and silicone oil.The polymer skeleton is thermally stable,
The gel state can be maintained in a wide temperature range. Silicone gel can be formed into a sheet, has elasticity that returns to its original state when pressed and depressed, and has no fluidity and exhibits intermediate properties between solid and liquid.

Further, when the sheet electric wire is folded with a heat radiating material such as a heat radiating rubber sheet or a metal plate sandwiched between the gel insulators, the heat generated from the sheet electric wire is absorbed by the heat radiating material, so that the temperature distribution is uniform. And the temperature rise of the sheet wire can be prevented. By connecting the heat-dissipating conductive wire to the heat-dissipating material and radiating the heat absorbed by the heat-dissipating material to the outside through the heat-dissipating conductive wire, the heat dissipation of the folded sheet electric wire is further improved, and the temperature of the sheet electric wire is improved. Obstacles associated with the rise can be reliably prevented.

[0014]

1 shows an insulation structure of a sheet electric wire according to the present invention.
It is explanatory drawing which shows the Example of an insulation method, and shows the process of interposing a gel-like insulator in a sheet wire. The basic electric wires 1 constituting the wire harness are juxtaposed in a form sandwiched by insulating sheets 2 to form sheet electric wires 3. A plurality of sets of branch wires 4 branched from the main wire 1 are connected to the main wire 1 through the insulating sheet 2 from the other surface (the upper surface in FIG. 1) of the insulating sheet 2.

The branch wire 4 has a connector 5 connected to the end of each branch circuit. Branch this sheet electric wire 3
Fold each wire 4, that is, in the length direction of the sheet wire.
Is configured as a bundled sheet wire,
On the upper and lower surfaces of the sheet wire 3,
A gel insulator 6 made of a silicone gel plate is alternately arranged every time, and the sheet insulator 3 is folded in this state so that the gel insulator 6 is interposed between the sheet wires 3. FIG. 2 shows a state where the sheet electric wire 3 is folded.

After folding the sheet electric wire 3, as shown in FIG. 3, the entire sheet electric wire 3 is wound and fixed with an insulating tape 7, or as shown in FIG. After accommodating the folded sheet electric wire 3, the upper case 8 and the lower case 9 may be fixed to hold the sheet electric wire 3.

As shown in FIG. 5, the gel insulator 6 is disposed between the folded sheet electric wire 3 and the branch electric wire 4. As shown in FIG. 6, the gel insulator 6 is deformed and fills the gap between the main wires 1 or between the main wires 1 constituting the branch wires 4 and the sheet wires 3 to fill the gap between the main wires 1 and the branch wires. The contact between the four is prevented.

[0018] FIG. 7 is an explanatory view showing a gel-like insulator 10 and the heat radiation member 11 according to an embodiment of the invention described in claim 2. The gel insulator 10 has a thin heat radiating material 11 formed of a heat radiating rubber sheet or a metal plate therein.
. The gel insulator 10 is disposed between the sheet wires 3 and folded in place of the gel insulator 6 in the above-described embodiment, and is wrapped and fixed with an insulating tape or housed and held in a case as necessary. The heat generated from the sheet wire 3 due to the energization is absorbed by the heat radiating material 11 and is made uniform, so that a local temperature rise of the sheet wire 3 can be prevented.

As shown in FIG. 8, a heat-dissipating material 11 is connected to a heat-dissipating conductive wire 12 made of a metal having good thermal conductivity , for example, a copper wire, as shown in FIG. 3, the heat absorbed by the heat radiating material 11 is radiated through the heat radiating conductive wire 12, so that the folded sheet electric wire has better heat radiating properties, and It is possible to reliably prevent a trouble due to a rise in the temperature of the electric wire.

[0020]

According to the present invention, the length of the sheet wire is increased by interposing the gel insulator between the wires constituting the sheet wire.
Due to the so folded in a direction, gate between opposing wire
The wire-shaped insulator intervenes, preventing the wires from contacting each other.
Insulation between them can be secured. In addition, sheet wire
A sheet with a gel insulator interposed between the constituent wires
By folding the wire in the length direction and pressing and fixing
Between the adjacent wires of
The gap between the wires is filled with a gel-like insulator to prevent the wires from contacting each other, thereby ensuring insulation between the wires. Therefore,
The distance between the electric wires can be reduced, and the entire wire harness can be reduced in size and density.

Further, by folding the sheet electric wire with the gel-like insulator and the heat radiating material interposed therebetween, the heat generated from the sheet electric wire is absorbed by the heat radiating material, so that the temperature distribution is made uniform and the temperature of the sheet electric wire is reduced. The rise can be prevented. In particular, connecting a heat-dissipating conductive wire to a heat-dissipating material to release heat to the outside will further improve heat-dissipating properties, and can reliably prevent failures associated with a rise in sheet wire temperature. There are tremendous advantages.

[Brief description of the drawings]

FIG. 1 is an explanatory view showing an embodiment of the invention described in claim 1 and showing a step of interposing a gel insulator in a sheet wire.

FIG. 2 is a perspective view showing a state where the sheet electric wire of FIG. 1 is folded.

FIG. 3 is an explanatory diagram showing a state in which the folded sheet electric wire of FIG. 2 is wound around with an insulating tape.

FIG. 4 is an explanatory view showing a state where the folded sheet electric wire of FIG. 2 is accommodated between an upper case and a lower case.

FIG. 5 is a sectional view showing a gel insulator interposed between the folded sheet electric wires of FIG. 2;

FIG. 6 is an explanatory view showing a state where the gel insulator of FIG. 5 is deformed by pressing.

FIG. 7 is an explanatory view showing the embodiment of the invention described in claim 2 and showing a gel insulator and a heat radiating material.

FIG. 8 is an explanatory diagram showing a state in which a heat dissipation conductive wire is connected to the heat dissipation material of FIG. 7;

FIG. 9 is an explanatory view showing a state in which the gel insulator of FIG. 8 is folded between sheet electric wires.

FIG. 10 is an explanatory view showing a conventional insulating structure of a sheet wire.

FIG. 11 is an explanatory view showing another conventional sheet wire insulation structure.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main electric wire 2 Insulating sheet 3 Sheet electric wire 4 Branch electric wire 6 Gel insulator 10 Gel insulator 11 Heat dissipating material 12 Conducting wire for heat dissipation

Claims (7)

(57) [Claims] 1. A converging sheet formed by folding a sheet electric wire formed by arranging a plurality of electric wires in parallel on an insulating sheet in a longitudinal direction and converging the sheet electric wire.
An insulating structure bet wires, conductive constituting the sheet wire
When a gel insulator is interposed between adjacent wires or between
Insulation structure of sheet wire, characterized by that. 2. A converging sheet formed by folding a sheet electric wire formed by arranging a plurality of electric wires on an insulating sheet in a longitudinal direction and converging the sheet electric wire.
An insulating structure bet wires, conductive constituting the sheet wire
Gel insulator and heat radiating material are interposed between the opposite wires of the wire.
Insulation structure of sheet wire, characterized in that that. 3. The insulation structure for a sheet electric wire according to claim 2, wherein a heat dissipation conductive wire is connected to the heat dissipation material, and the heat absorbed by the heat dissipation material is led out to the outside. 4. A sheet electric wire having a plurality of electric wires arranged side by side on an insulating sheet is folded in the length direction to be bundled, and a gel-like insulator is interposed between the sheet electric wires, and the sheet electric wires are folded and pressurized and fixed. A method for insulating sheet electric wires, comprising: 5. A sheet electric wire comprising a plurality of electric wires arranged side by side on an insulating sheet and folded and bundled in a longitudinal direction , wherein a gel-like insulator and a heat radiating material are interposed between the sheet electric wires and folded. A method for insulating sheet electric wires, characterized by fixing by pressing. 6. The insulation method for a sheet electric wire according to claim 5, wherein a heat conducting wire is connected to the heat radiating material, and heat absorbed by the heat radiating material is led out. 7. The method according to claim 4, wherein the sheet electric wire is formed of a group of main electric wires constituting a wire harness and a group of branch electric wires branched from the main electric wire. .