JP3299635B2 - Flat cable terminal connection structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure in which ends of a predetermined number of conductive wires are exposed from ends of an insulating coating of a flat cable, and each terminal is connected to each end.

[0002]

2. Description of the Related Art As is well known, flat cables are widely used in various fields, and various types of cables having different numbers of conductors in an insulating coating are commercially available. The user obtains this commercially available flat cable and generally connects the terminal to all or the required conductor ends,
Wire to the equipment.

When a flat cable is a commercially available general-purpose product, it is often the case that only a part of the conductor included in the flat cable is used. For example, in FIG. 1, when the total number of the conductors is six (1a to 1f), for example, only three of them (for example, only 1a, 1b, and 1c) are used, and the other three are used.
Books (1d, 1e, 1f) are often empty.
However, usually, the terminals 2a to 2f are connected to all of the conductors 1a to 1f. In the drawing, reference numeral 3 denotes an insert mold portion for fixing the conductor and the terminal. Therefore, conventionally, it has been a very uneconomical method of use. In the past, there was no idea of actively using the three empty conductors that were allowed to play.

[0004] The present inventors have focused on reducing the electrical resistance of a flat cable by positively utilizing a conductive wire that has not been conventionally used.

[0005]

SUMMARY OF THE INVENTION Accordingly, a technical problem to be solved by the present invention is to reduce the electric resistance of a flat cable by positively utilizing a vacant conductor which has not been conventionally used. . Another object of the present invention is to achieve the above object with a relatively simple structure for connecting a conductor and a terminal.

[0006]

Means for Solving the Problems, Actions and Effects In order to solve the above problems, according to the present invention, two means for solving the problems are provided.

[0007] The structure according to one of the above solutions is to dispose the exposed conductor end of the insulating coating of the flat cable to a first exposed conductor end and a second conductor protruding outward from the first exposed conductor end. A flat cable including a second conductor exposed end while exposing a predetermined number of conductor ends from the first conductor exposed end and connecting each terminal to each end thereof in a two-stage configuration with an exposed end. Are bent toward the terminals, the ends of a predetermined number of conductive wires are exposed, and the ends are selectively connected to the terminals.

According to the above configuration, two terminals are connected to one terminal.
The above conductors are connected in parallel. As a result, unused conductors, which have not been used in the past, are effectively used, and the electric resistance of the conductors in the flat cable is reduced.

According to the above configuration, it is sufficient to prepare the required number of terminals, and there are no extra terminals 2d, 2e, 2f as shown in FIG.

Further, according to the above configuration, there is an advantage that it is not necessary to use another connection wire by using a technique of bending the protruding end portion of the flat cable including the second conductive wire exposed end.

In the structure according to the second solution, the terminal selectively removes a predetermined connecting portion of the terminal material formed by stamping and forming a sheet metal integrally through a connecting portion connecting the adjacent terminals. It is characterized by becoming.

In this case, each terminal is connected to a corresponding conductor in the form of a terminal material. This connection work is easy because the terminal material is an integral body. Further, after the connection work, it is also easy to remove the predetermined connecting portion. A lead wire or the like is connected to one end of two or more terminals connected by the connecting portion. Therefore, in that two or more conductors are connected in parallel to one terminal,
This is the same as the first solution.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to FIGS.

2 and 3, members or portions corresponding to those in FIG. 1 are denoted by the same reference numerals.
First, a first embodiment will be described with reference to FIG.

In FIG. 2, the exposed conductor of the insulating coating 1g of the flat cable 1 is made up of a first exposed conductor 1h and a second exposed conductor 1i protruding outward from the first exposed conductor. And a two-stage configuration. That is, the portion including the second conductive wire exposed end 1i constitutes the protruding end 1k. In the first embodiment, the required number of terminals is three.

Next, each end of a predetermined number of conductors 1a, 1b, 1c is exposed from the insulating coating 1g from the first conductor exposed end 1h, and each terminal 2a, 2b, 2c is provided at each end.
Connect. The connection portion is shown by oblique lines in the figure.

On the other hand, the second conductor exposed end 1i is formed in a step shape as shown by a dashed line in FIG.
d, 1e and 1f are exposed from the insulating coating 1g. That is, the conductors 1 f, 1 e, and 1 d are gradually shortened in this order. Next, the protruding end 1k of the flat cable is bent at approximately 90 ° to each terminal side (the bent state is shown by the actual battle in the figure), and a predetermined number of conductors 1f, 1
e and 1d are connected to the terminals 2a and 2d, respectively.
2b and 2c. At this time, the end of each conductive wire is connected to one corresponding terminal, and is insulated from the other terminals by the insulating coating 1g.

In the above configuration, each pair of conductive wires 1a,
1f; 1b, 1e; 1c, 1d are connected in parallel to the terminals 2a, 2b, 2c, respectively. As a result, the conductors 1d, 1e, and 1f are also effectively used, and the electric resistance of the conductor in the flat cable is reduced.

In the above embodiment, the conductors 1d, 1e, 1f
Are connected to the terminals 2a, 2b, and 2c, respectively, in a one-to-one manner, and the connection is selected according to the purpose. Although not preferred, the conductors 1d, 1e,
It is also possible to play without using a part of 1f.

Next, a second embodiment will be described with reference to FIG. In this embodiment, predetermined connecting portions 4b and 4d of a terminal material formed by stamping and forming a sheet metal are integrally removed through connecting portions 4a to 4e connecting the adjacent terminals. . In other words, the connecting portions 4a, 4c, 4e are left, and the pair of terminals 2a, 2b; 2c, 2d; 2e, 2f are respectively integrated.

In this case, each terminal is connected to a corresponding conductor in the form of a terminal material. This connection work is easy because the terminal material is integral. Also,
After the connection work, it is also easy to remove the predetermined connecting portion. The lead wire or the like is connected to one end of a pair of terminals connected by the connecting portion, for example, to the distal ends of 2a, 2c, and 2e. That is, the other terminals 2b, 2d, 2
The tip of f is not used. Therefore, in this case, each pair of conductors 1a, 1a, 2a, 2c, 2e
1b; 1c, 1d; 1e, 1f are connected in parallel.

[Brief description of the drawings]

FIG. 1 is a main part plan view showing a terminal connection structure of a flat cable according to a conventional example.

FIG. 2 is a main part plan view showing a terminal connection structure of the flat cable according to the first embodiment of the present invention.

FIG. 3 is a plan view of a main part showing a terminal connection structure of a flat cable according to a second embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Flat table 1a-1f Conductor 1g Insulation coating 1h First conductor exposed end 1i Second stepped conductor exposed end 1j Folded curve 1k Projecting end 2a-2f Terminal 3 Insert molded part 4a-4d Connecting part

Continuation of the front page (56) References JP-A-4-223069 (JP, A) JP-A-7-85938 (JP, A) JP-A-6-349343 (JP, A) JP-A-63-118176 (JP) , U) Actually open 50-124569 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) H01R 12/08

Claims (2)

(57) [Claims] An insulating coating (1) for a flat cable (1).
g) exposing the ends of a predetermined number of conductors (1a to 1f) from the ends and connecting each terminal to each end, the exposed end of the conductor of the insulation coating (1g) of the flat cable (1). In a two-stage configuration of a first conductor exposed end (1h) and a second conductor exposed end (1i) protruding outward from the first electric wire exposed end, and the first conductor exposed end (1h). 1h), the ends of a predetermined number of conductors (1a, 1b, 1c) are exposed and each terminal (2a, 2b, 2c) is connected to each end, while the second conductor exposed end (1i). Is bent toward the terminals, a predetermined number of conductors (1d, 1e, 1f) are exposed, and each end is connected to the terminal (2a, 2f). 2
b, 2c), a flat cable terminal connection structure selectively connected to the terminal. 2. An insulation coating (1) for a flat cable (1).
In a structure in which a predetermined number of conductors (1a to 1f) are exposed from the end of g) and each terminal is connected to each end, the terminals (2a to 2f) connect adjacent terminals. A terminal connection of a flat cable, characterized in that predetermined connection portions (4b, 4d) of a terminal material integrally formed by sheet metal punching through connection portions (4a to 4d) are selectively removed. Construction.