JPH08138447A - Flat electric wiring - Google Patents

Abstract

PURPOSE: To provide flat electric wiring in which terminal parts of flat conductors are squeezed, and a terminal pitch in the terminal parts of the flat conductors is reduced so as to be matched with a terminal pitch of a connector, while no additional dedicated die for a mounting conductor to the squeezed part, no positioning device in mounting, nor the like is required. CONSTITUTION: In flat electric wiring, plural plate conductors 1 are arranged at the predetermined pitches, and insulating films 2 are laminated on both sides of the plural plate conductors l, and in terminals 3 of the flat electric wiring, plural plate conductors 1 are exposed and squeezed, so that the exposed plural plate conductors 1, in which pitches are reduced loss than the predetermined pitches, are folded and overlap with each other. Therefore, thickness of a part, in which the plate conductors are squeezed compactly, doubles in comparison with the original thickness, so that a cross sectional area for the squeezed part can be secured.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to a flat electric wiring for an automobile.

[0002]

2. Description of the Related Art In recent years, wire harnesses for automobiles have been
V-wires (low-voltage electric wires for automobiles) are being changed from a bundled form to a flat form. A typical example of this flat wire harness is a copper strip punched conductor. A copper strip punched conductor is a copper die punched with a "mold" on which a circuit pattern is formed.After laminating an insulating film on this punched conductor, the film is cut into a predetermined shape to produce a flat conductor. Is what you get. The flat conductor thus formed is subjected to post-processing such as terminal processing and joint processing to complete a wire harness.

[0003]

In the above flat conductor, it is necessary to widen the conductor width in order to secure the cross-sectional area required for the conductor as the conductor becomes thinner. By the way, a connector is usually connected at a terminal of a wire harness, not limited to a flat conductor, but in order to connect a connector to a terminal of a flat conductor, a pitch between terminals of the connector is set to a conductor of a flat conductor. Although it will be adjusted to the pitch, if it is adjusted to the conductor pitch, the size of the connector becomes too large, causing a big problem in terms of versatility, which is unsuitable for electric wiring of automobiles that require many conductor patterns. .

Therefore, contrary to the above, as shown in FIG. 3, there is also a means for narrowing the terminal pitch of the terminal portions 11 of the flat conductor 10 so that the terminal portions 11 of the flat conductor 10 match the terminal pitch of the connector. In this case, if the length of the narrowed portion 12 to the terminal connection portion is short, it does not cause a big problem, but if the length of the narrowed portion 12 of the terminal portion 11 becomes long, a problem such as heat generation due to a decrease in cross-sectional area occurs. As a means for solving this problem, another conductor can be attached to the narrowed portion 12 to compensate for the decrease in the cross-sectional area of the narrowed portion 12 and solve the problem of heat generation or the like. However, in order to attach another conductor, there is a new problem that a new mold dedicated to the attached conductor is required, and a positioning device for attaching is required.

The present invention solves the above-mentioned problems and narrows the terminal pitch of the end portions of the flat conductor so as to match the terminal portions of the flat conductor with the pitch between the terminals of the connector, and a new metal dedicated to the pasted conductor is used. It is an object of the present invention to provide a flat electric wiring that does not require a positioning device or the like for a die or a sticking.

[0006]

The present invention has the following means in order to solve the above problems.

The flat electric wiring according to claim 1 of the present invention is a flat electric wiring in which a plurality of plate-shaped conductors are arranged at a predetermined pitch, and insulating films are laminated on both surfaces of the plurality of plate-shaped conductors. In the end of the flat electric wiring, the plurality of plate-shaped conductors are exposed and the exposed plurality of plate-shaped conductors are narrowed down to be smaller than the predetermined pitch to form a small pitch, and a portion where the pitch is formed small. The plurality of plate-shaped conductors are folded back and overlapped with each other.

The flat electric wiring according to claim 2 of the present invention is characterized in that the plurality of conductors that are folded and overlapped have the same pattern with the folded portions being line-symmetrical.

The flat electric wiring according to claim 3 of the present invention is characterized in that the overlapping portions of the plurality of folded and overlapped conductors are fixed.

[0010]

According to the flat electric wiring of the present invention, a plurality of plate conductors are arranged at a predetermined pitch, and an insulating film is laminated on both sides of the plurality of plate conductors. The end of the flat electric wiring is a plurality of plate-shaped conductors exposed, and the plurality of exposed plate-shaped conductors are narrowed down to be smaller than a predetermined pitch to form a small pitch, and the pitch is formed to be small. Since the plurality of plate-shaped conductors of the part are folded back and overlapped with each other, the thickness of the part of the plate-shaped conductor that is narrowed down is twice the original thickness, and the cross-sectional area of the narrowed part can be secured.

According to the flat electric wiring of claims 3 to 5 of the present invention, a plurality of conductors which are folded and superposed are fixed at their superposed portions with solder, welding or a conductive adhesive. Therefore, the strength of the exposed plurality of plate-shaped conductors can be secured.

[0012]

The present invention will be described below in detail with reference to examples. (Embodiment 1) FIG. 1 and FIG. 2 are views showing an embodiment of the flat electric wiring of the present invention. In the figure, 1 is a conductor made of a copper plate. The conductor 1 is formed by punching a copper strip into a predetermined shape by a punching die and has a thickness of 0.3 mm.
The width and the width are appropriately determined in the range of 1 mm to 10 mm depending on the amount of energization. A plurality of conductors 1 are arranged at a predetermined pitch, and insulating films 2 are laminated on both surfaces of the conductor 1.

The end 3 of the conductor 1 is pulled out in an exposed state from the end of the insulating film 2. The terminals 3 of the conductors 1 that are drawn out in an exposed state from the end of the insulating film 2 are collected in block units, and the pitch of the conductors 1 is connected to another small predetermined pitch, that is, the terminals 3 in each block unit. It is formed in a narrowed state so as to have the pitch of the terminals of the connector (not shown). There is a portion where the conductor width of the terminal 3 of the conductor 1 that has been narrowed down is about one-third of the original conductor width.

As shown in FIG. 2, the end 3 of the conductor 1 is folded back along the folding line AA in the direction of the arrow and overlapped. The overlapping portions of the conductor 1 are fixed by solder. The terminal 3 of the conductor 1 folded back along the folding line AA and overlapped with each other is a folding portion 4 having the same pattern and having the folding line AA as line symmetry. Even if the conductor width of the terminal 3 of the narrowed conductor 1 is reduced to, for example, 1/3, the flat electric wiring configured as described above is folded back at the folding line AA and is overlapped, so that the thickness is doubled. Therefore, the cross-sectional area becomes two-thirds of the original cross-sectional area, and it becomes possible to design the cross-sectional area within the allowable range for the energization amount.

(Other Embodiments) In the above embodiment,
The portion of the conductor 1 that is folded along the folding line AA and overlaps is fixed by solder, but the fixing is not limited to solder, but welding such as spot welding or a conductive adhesive may be used. As described above, the flat electrical wiring of the present invention has the terminal pitch of the end portions of the flat conductor narrowed down so as to match the terminal portion of the flat conductor with the terminal pitch of the connector, and another conductor is placed in the narrowed portion. Since it is not attached, a new mold dedicated to the attached conductor is not required, and a positioning device for attaching is not required.

[0016]

As described above, according to the flat electric wiring of claims 1 to 3 of the present invention, a plurality of plate-shaped conductors are arranged at a predetermined pitch, and insulation is provided on both surfaces of the plurality of plate-shaped conductors. A flat electric wiring in which a film is laminated, and the terminals of the flat electric wiring are formed such that a plurality of plate-shaped conductors are exposed and the exposed plurality of plate-shaped conductors are narrowed down to be smaller than a predetermined pitch, and a small pitch, and Since the multiple plate-shaped conductors in the part with a small pitch are folded and overlapped, the thickness of the part of the plate-shaped conductor that is narrowed down is twice the original thickness and the cross-sectional area of the narrowed part Will be secured.

According to the flat electric wiring of the third aspect of the present invention, since the plurality of conductors which are folded and overlapped are fixed at the overlapped portions with solder, welding or a conductive adhesive. The strength of the exposed plurality of plate conductors can be secured.

[Brief description of drawings]

FIG. 1 is an explanatory view showing an embodiment of a flat electric wiring of the present invention, (a) is a side view and (b) is a plan view.

FIG. 2 is an explanatory view showing a part of a manufacturing process of the flat electric wiring of FIG.

FIG. 3 is an explanatory diagram showing an example of a conventional flat electric wiring.

[Explanation of symbols]

 1 conductor 2 insulating film 3 terminal 4 folded part AA line folded line

Claims (3)

[Claims] 1. A flat electric wiring in which a plurality of plate-shaped conductors are arranged at a predetermined pitch, and an insulating film is laminated on both surfaces of the plurality of plate-shaped conductors, wherein the terminals of the flat electric wiring are the plurality of flat electric wires. When the plate-shaped conductors are exposed, the exposed plate-shaped conductors are narrowed down to be smaller than the predetermined pitch to form a small pitch, and the plurality of plate-shaped conductors in a portion where the pitch is formed are folded back. Flat electrical wiring characterized by being overlapped. 2. The flat electric wiring according to claim 1, wherein the conductors that are folded and overlapped have the same pattern in which the folded portions are line-symmetrical. 3. The flat electric wiring according to claim 1, wherein the plurality of conductors that are folded back and overlapped are fixed at the overlapped portions.