JP2001319714A - Terminal treatment method of flat type electric wire - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a terminal treatment method of a flat type electric wire in which erroneous insertion and imperfect contact of insertion and release type connector are prevented. SOLUTION: By stripping off one side of insulating layer of end of the flat type electric wire, exposing one side of conductor, making a central neighborhood of length direction of this part be folded, folding to make a surface with conductor to the outside, and by pinching and fixing a reinforcing plate at the folded part, the reinforcing plate is fixed at an end of flat type electric wire, and a conductor at the end of flat type electric wire is folded and fixed in a state that it is exposed at both sides of flat type electric wire.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to terminal treatment of flat electric wires used for automobile harnesses.

[0002]

2. Description of the Related Art In recent years, a variety of electrical components ranging from electrical devices such as meters, switches, connection boxes, and sensors to car stereos and car coolers have been mounted on automobiles. Has also increased. In order to cope with the increase in the number of electric wires, flat electric wires having an excellent space factor have been frequently used as electric wires. For connection of such a flat electric wire, for example, an insertion / removal type connector as shown in FIG. 3 is used so that switching or replacement of the wiring is easy. In FIG. 3, 6 is
The housing of the connector is shown, and 5 indicates the terminal of the connector. A flat electric wire whose one end is exposed on one side of the conductor 2 and whose back side is reinforced with a reinforcing plate 3 for easy insertion and removal is inserted between the terminal 5 and the housing 6. Then, the exposed conductor 2 of the flat wire and the terminal 5 of the connector come into contact with each other, thereby connecting the circuit.

[0003]

However, since the exposed conductor is on one side, it may be wrong to insert it into the pluggable connector when switching or replacing the wiring, such as making a mistake on the front or back, or fixing the connection. However, since the contact is fixed only by the contact pressure of the terminal, there is a possibility that a contact failure may occur due to vibration. It is an object of the present invention to provide a method of treating a flat wire terminal that prevents erroneous insertion into a pluggable connector and poor contact.

[0004]

According to the present invention, one end of an insulating layer at the end of a flat electric wire is peeled off, one surface of the conductor is exposed, and a portion near the center in the length direction of this portion is creased to provide a conductor. Bending the surface outward, sandwiching the reinforcing plate at the bent part, fixing the reinforcing plate to the end of the flat wire, and the conductor at the end of the flat wire is exposed on both sides of the flat wire Thus, the end of the flat electric wire is bent and fixed. In this case, if a hot-melt adhesive layer is provided in advance on both sides of the reinforcing plate, the reinforcing plate is fixed to the end of the flat wire by a single hot press, and the end of the flat wire is The flat electric wire can be bent and fixed so as to be exposed on both sides. The use of the electric wire which has been subjected to the terminal treatment allows conduction to the terminals of the pluggable connector on both surfaces, so that there is no fear of incorrect insertion into the pluggable connector. Also, if a through hole is provided in advance in the reinforcing plate, after inserting the wire into the pluggable connector, a stopper is fitted into this hole to position the insertion of the wire into the pluggable connector and pull out the wire. This can be useful for prevention, poor contact at the connection portion due to vibration, and the like.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION As a flat electric wire used in the present invention, a plurality of flat conductors are arranged in parallel at predetermined intervals,
A type in which insulating tapes are stuck on both upper and lower surfaces thereof is preferable. As an insulating tape, a tape in which an adhesive layer selected from olefin, polyester, vinyl, etc. is provided on one side of polyester is used, and the adhesive layers of the two insulating tapes are opposed to each other. The flat electric wire is manufactured by sandwiching the mold conductors and attaching them by a laminator or the like.

[0006] In order to connect the flat electric wire to the pluggable connector, the insulating tape on one side of the end of the flat electric wire is stripped off. In the present invention, the stripping length is made longer than usual. The exposed portion of the conductor is bent so that the exposed conductor is located outside, and the reinforcing plate is fixed to the end of the flat electric wire with the bent portion sandwiching the reinforcing plate.

[0007] As a reinforcing plate, as a base material, for example,
150-400 μm slightly thicker than the insulation tape
m polyester, olefinic on both sides,
Those provided with an adhesive layer selected from polyester, vinyl and the like are preferred. Needless to say, the base material is not limited to polyester, and it is sufficient that the insertion and removal with the connector have a strength that is easy to perform.
An insulating plate such as polyamide, polyamide imide, or epoxy containing glass fiber, or a metal plate such as an aluminum plate can also be used.

If a through hole is provided in advance in the reinforcing plate, a flat wire is inserted into the connector, and then a stopper (stopper) is fitted into the through hole to connect the flat wire to the plug-in type connector. This can be useful for positioning of insertion, prevention of disconnection of electric wires, and prevention of contact failure due to vibration.

[0009]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 2.5 mm flat conductor of 100 μm thickness and 1.5 mm width
A three-core insulating film having an olefin-based adhesive layer having a thickness of 50 μm provided on one side of a polyester having a thickness of 100 μm and having a 50-μm-thick olefin-based adhesive layer facing each other is arranged at a pitch of 3 mm. A flat wire was made. The insulating film on one side of the end of the electric wire was peeled off by 8 mm to expose one side of the conductor. Next, as shown in FIG. 1, the conductor was exposed, and the vicinity of the center in the length direction was creased. Hot pressing the reinforcing plate provided with the vinyl adhesive layer, fixing the reinforcing plate to the end of the flat wire, and at the same time, the flat wire end,
It was fixed in a state where the conductor was bent outward.

[0010] In this way, if the flat wire end is fixed in a bent state with the conductor outside, the flat wire can conduct to the connector terminal on either side, and can be inserted and removed. There is no need to worry about incorrect insertion into the connector. In addition, by providing a hot-melt type adhesive layer on both sides of the reinforcing plate in advance, the fixing of the reinforcing plate and the bending of the end of the electric wire can be performed by a single hot press.

Further, a through hole is provided in advance in the reinforcing plate, and the reinforcing plate is fixed to an end of the electric wire so that the hole is located at a predetermined position, for example, as shown in FIG. After inserting the pluggable connector, if the stopper 7 shown in FIG. 4 is fitted into this hole, for example, positioning of the insertion of the wire into the pluggable connector, prevention of the wire coming off, vibration at the connection portion due to vibration, etc. This can help prevent poor contact.

[0012]

As described above, the feature of the present invention is that one side of the insulating layer at the end of the flat wire is peeled off, one side of the conductor is exposed, and the vicinity of the center in the length direction of this portion is taken as a fold. Bending the conductor with the surface outside, fixing the reinforcing plate at the bent portion with the reinforcing plate in between, fixing the reinforcing plate to the end of the flat wire, and the conductor at the end of the flat wire is flat It is to bend and fix in a state where it is exposed on both sides of the electric wire. At that time, if a hot melt type adhesive layer is provided on both sides of the reinforcing plate in advance, fixing of the reinforcing plate, and,
The end of the flat wire can be bent and fixed by a single hot press, which is convenient. By using the flat wire that has been subjected to the terminal treatment, conduction with the terminal of the insertion / removal connector can be obtained on either side, and the possibility of incorrect insertion can be eliminated. In addition, if a through hole is provided in the reinforcing plate in advance, after inserting the wire into the pluggable connector, a stopper is fitted into this hole to position the insertion of the wire into the pluggable connector and prevent the wire from coming off. This can help prevent poor contact at the connection due to vibration or the like.

[Brief description of the drawings]

FIG. 1 is a sectional view of an end of a wire according to the present invention.

FIG. 2 is a perspective view of an end of a wire according to the present invention.

FIG. 3 is a sectional view of a pluggable connector.

FIG. 4 schematically shows a situation in which a stopper for fixing an end of an electric wire to a connector is used.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Flat electric wire 2 Flat conductor 3 Reinforcement plate 4 Hole 5 Connector housing 6 Stopper

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Atsushi Tanaka 1-7-10 Kikuzumi, Minami-ku, Nagoya-shi, Aichi F-term in Harness Research Institute (reference) 4E352 AA02 AA07 AA09 AA16 BB02 BB05 BB15 CC02 CC56 DD05 DR05 DR14 DR25 DR26 GG07 GG10 GG12 5E023 AA18 BB01 BB09 BB11 HH08 5E077 BB05 BB11 BB21 DD20 HH07 JJ11 JJ22 5G309 FA06 FA07 LA24 LA26 LA27 5G311 CA05 CB01 CC01 CC04 CD03 CF04 CF05

Claims (3)

[Claims] Claims: 1. An insulating layer at one end of a flat electric wire is peeled off on one side,
One side of the conductor is exposed, this part is creased near the center in the length direction, and the conductor is bent outward with the side with the conductor outside.A reinforcing plate is sandwiched between the bent portions, and a reinforcing plate is attached to the end of the flat wire. A method of treating a flat wire end, wherein the flat wire end is bent and fixed in a state where the conductor at the end of the flat wire is exposed on both sides of the flat wire. 2. A hot-melt adhesive layer is provided on both sides of a reinforcing plate in advance, and the reinforcing plate is fixed to the end of the flat electric wire and the end of the flat electric wire is bent by a single hot press. The method according to claim 1, wherein the fixing is performed. 3. The method according to claim 1, wherein a through-hole is provided in the reinforcing plate in advance.