JPH10162885A - Electric connecting member and manufacture therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electric connecting member having a contact point height which can be easily constituted in a short time in the small process number and by which a reliable contact condition can be secured by driving and penetratingly installing a U-shaped electric contact point which is composed of a conductive wire rod and whose tip is sharply worked, in a contact point forming part of a conductor pattern on a flexible wiring board. SOLUTION: A conductor pattern 2 is formed on the surface of an insulating film 4, and a flexible wiring board 3 is obtained. On the other hand, a conductive wire rod such as highly rigid phosphor bronze is cut, and is bent in a U shape, and the tip 16 is sharply worked, and a U-shaped electric contact point 1 is obtained. This wiring board 3 is placed on a jig 6, and a contact point forming part of a conductor pattern 2 is correspondingly positioned in a recessed part 61 of the jig. Next, the U-shaped electric contact point 1 is correspondingly positioned and driven in the recessed part 61, and is penetrated through the wiring board 3, and the tip 16 is butted against the recessed part 61, and is bent, and is held by and fixed to the flexible wiring board 3, and an electric connecting member 5 is obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric connection member and a method of manufacturing the same, and more particularly, to an electric connection member in which a U-shaped electric contact is inserted into a contact forming portion of a conductive pattern so as to penetrate therethrough and a method of manufacturing the same.

[0002]

2. Description of the Related Art A conventional example will be described with reference to the drawings. In FIG. 6, the flexible wiring board 3 includes an insulating film 4 and a conductor pattern 2. The electrical contact 1 is formed on the conductor pattern 2. Reference numeral 5 denotes the entire electric connection member configured as described above.

FIG. 7 is a view for explaining another wiring member 5 'to which the electric connection member 5 shown in FIG. 6 is electromechanically connected. The wiring member 5 ′ is formed by forming the conductor pattern 2 on the surface of the insulating film 4. The electric connection member 5 establishes electrical continuity between the wiring member 5 'and the wiring member 5' when pressed and brought into contact therewith.

[0004]

As described with reference to FIG. 8, the above-described electric connection member 5 is formed mainly by applying photolithography and plating. A brief description of this forming process is as follows: the insulating film 4 constituting the flexible wiring board 3;
A photosensitive resist 13 is applied on the wiring pattern 2 of FIG.

A mask 15 on which a light-transmitting portion 17 corresponding to a region where the electrical contact 1 is to be formed is placed on the insulating film 4 and exposed with light indicated by 14. By dissolving and removing the photosensitive resist 13 in the region irradiated with the light 14, the contact forming portion 10 of the conductive pattern on which the electrical contact 1 is to be formed is exposed. A metal electrical contact 1 is formed by applying a plating technique to the contact forming portion 10 of the conductive pattern.

The remaining photosensitive resist 13 is dissolved,
Remove. Manufacturing the electrical connection member 5 requires a multi-step manufacturing process as described above. Further, when the electrical contact 1 is formed by a plating technique, it takes a long time to obtain a sufficient contact height H '. The present invention provides an electric connection member that solves the above-described problem and a method for manufacturing the same.

[0007]

Means for Solving the Problems A flexible wiring board 3 having a conductive pattern 2 formed on the surface of an insulating film 4 is provided. The conductive wire is cut and bent into a U-shape, and the tip 16 is sharpened. An electrical connection member was formed in which the U-shaped electrical contact 1 was driven into and penetrated into the contact forming portion 10 of the conductive pattern 2.

The U-shaped electrical contact 1 constitutes an electrical connection member having a projection 9 at the center thereof. In addition, an electric connection member having a solder connection 12 between the U-shaped electric contact 1 and the conductor pattern 2 was formed. Here, a flexible wiring board 3 having the conductive pattern 2 formed on the surface of the insulating film 4 is prepared, and the conductive wire is cut and bent into a U-shape.
A U-shaped electrical contact 1 having a sharpened tip 16 is prepared.
In the state where the contact forming portion 10 of the conductive pattern corresponds to the concave portion 61 formed in the jig 6, the flexible wiring board 3
Is placed on the jig 6, and the tip 16 of the U-shaped electrical contact 1 is placed on the contact forming portion 10 corresponding to the concave portion 61 of the flexible wiring board 3.
And a method for manufacturing an electrical connection member which is positioned and driven through.

Then, a flexible wiring board 3 having a conductive pattern 2 formed on the surface of the insulating film 4 is prepared, and the conductive wire is cut and bent into a U-shape. The contact 1 is prepared, and cream solder 11 is printed on the conductive pattern contact forming portion 10 on which the U-shaped electrical contact 1 of the flexible wiring board 3 is driven, and the conductive pattern contact forming portion 10 is formed on the jig 6. Recess 61
In this state, the flexible wiring board 3 is placed on the jig 6, and the leading end 16 of the U-shaped electrical contact 1 is positioned and driven into the contact forming portion 10 corresponding to the concave portion 61 of the flexible wiring board 3. And solder cream 1
1 was heated and melted to a predetermined temperature, and cooled and solidified to form a method of manufacturing an electrical connection member for forming a solder connection 12 between the U-shaped electrical contact 1 and the conductor pattern 2.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a perspective view of an electric connection member according to the present invention. As in the conventional example, the flexible wiring board 3 includes the insulating film 4 and the conductor pattern 2. In the case of this embodiment, the U-shaped electrical contact 1 is formed on the conductor pattern 2. FIG. 3 is a diagram illustrating a method for manufacturing an electric connection member according to the present invention.

A flexible wiring board 3 having a conductive pattern 2 formed on the surface of an insulating film 4 is prepared. A conductive wire rod such as phosphor bronze having relatively high rigidity is cut and bent into a U-shape to prepare a U-shaped electrical contact 1 having a sharpened tip 16. On the upper surface of the jig 6 on which the flexible wiring board 3 is placed, a concave portion 6 corresponding to the tip 16 of the U-shaped electrical contact 1 is provided.
1 is formed. When the flexible wiring board 3 is placed on the jig 6, the contact forming portion 10 of the conductive pattern into which the tip 16 of the U-shaped electrical contact 1 of the flexible wiring board 3 is to be driven is placed in correspondence with the recess 61. I do.

The tip 16 of the U-shaped electrical contact 1 is positioned and driven into the contact forming portion 10 corresponding to the concave portion 61 of the flexible wiring board 3 placed on the jig 6 and penetrates it. The tip 16 of the U-shaped electrical contact 1 is driven in, and the tip 16
Is brought into contact with the concave portion 61 and bent, and is held and fixed to the flexible wiring board 3.

FIG. 2 is a cross-sectional view showing a state where the electric connection member according to the present invention is connected to another wiring member. In a state where the electric connection member 5 is in contact with another wiring member 5 ′, the electric connection member 5 is pressed and sandwiched by the two pressing members 7 to keep both connected. At this time, an elastic body 8 is interposed between the pressing member 7 and the electric connection member 5 or another wiring member 5 'to strengthen connection holding.

FIG. 4 is a sectional view showing another embodiment of the electric connection member. In this embodiment, a convex portion 9 is provided at the center of the U-shaped electric contact 1, and the contact height H is further increased. FIG. 5 is a view for explaining another embodiment of the method of manufacturing the electric connection member. A flexible wiring board 3 having a conductive pattern 2 formed on the surface of an insulating film 4 is prepared. A conductive wire rod such as phosphor bronze having relatively high rigidity is cut and bent into a U-shape to prepare a U-shaped electrical contact 1 having a sharpened tip 16.

On the upper surface of the jig 6 on which the flexible wiring board 3 is placed, a concave portion 61 is formed at a position corresponding to the tip 16 of the U-shaped electric contact 1. A cream solder 11 is printed on the contact forming portion 10 of the conductive pattern on which the U-shaped electric contact 1 of the flexible wiring board 3 is driven.
When placing the flexible wiring board 3 on the jig 6, the tip 1 of the U-shaped electrical contact 1 of the flexible wiring board 3
The contact forming portion 10 of the conductive pattern into which 6 is to be driven is placed corresponding to the concave portion 61.

The distal end 16 of the U-shaped electrical contact 1 is positioned and driven into the contact forming portion 10 corresponding to the concave portion 61 of the flexible wiring board 3 placed on the jig 6, and is penetrated. The cream solder 11 is heated and melted to a predetermined temperature and solidified by cooling to form a solder connection 12 between the U-shaped electrical contact 1 and the conductor pattern 2.

[0017]

As described above, according to the present invention, a U-shaped electric contact, which is obtained by cutting a conductive wire and bent in a U-shape, is driven into a contact forming portion of a conductive pattern formed on a flexible wiring board. It is an electrical connection member penetrated and attached.
As a result, the electric connection member can be formed in a shorter time with a smaller number of steps as compared with the conventional example.

According to the present invention, the height of the contact can be easily increased, and a reliable contact state with other wiring members can be ensured. By forming a convex portion on the horizontal portion of the U-shaped electrical contact, the height of the contact can be more easily increased. Further, by forming the solder connection between the U-shaped electrical contact and the conductor pattern, the electrical connection between the two can be more reliably made. Especially,
When the conductivity of the U-shaped electric contact is small, a great effect is exerted in securing the electrical connection between the two.

[Brief description of the drawings]

FIG. 1 is a perspective view of an embodiment.

FIG. 2 is a cross-sectional view showing a state where the embodiment is connected to another wiring member.

FIG. 3 is a diagram illustrating an example of a manufacturing method.

FIG. 4 is a cross-sectional view of another embodiment.

FIG. 5 is a diagram illustrating another embodiment of the manufacturing method.

FIG. 6 is a perspective view of a conventional example.

FIG. 7 is a sectional view of a conventional example.

FIG. 8 is a diagram illustrating a manufacturing method of a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Electric contact 2 Conductor pattern 3 Wiring board 4 Insulating film 5 Electric connection member 5 'Other wiring members 6 Jig 7 Pressing member 8 Elastic body 9 Convex part 10 Contact formation part 11 Cream solder 12 Solder connection part 13 Photosensitive resist 14 light 15 mask 16 tip 17 light passing portion H contact height

Claims (5)

[Claims] 1. A conductive pattern comprising: a flexible wiring board having a conductive pattern formed on the surface of an insulating film; cutting a conductive wire to bend into a U-shape; An electrical connection member, wherein the electrical connection member is attached by being driven into and penetrated into the contact formation portion of (1). 2. The electrical connection member according to claim 1, wherein the U-shaped electrical contact is provided with a convex portion at a central portion thereof. 3. The electrical connection member according to claim 1, wherein a solder connection is formed between the U-shaped electrical contact and the conductor pattern. 4. A flexible wiring board having a conductive pattern formed on the surface of an insulating film is prepared. A conductive wire is cut and bent into a U-shape. The flexible wiring board is placed on the jig with the contact forming portion of the conductive pattern corresponding to the concave portion formed on the jig, and the U-shaped electrical contact is formed on the contact forming portion corresponding to the concave portion of the flexible wiring board. A method for manufacturing an electrical connection member, characterized in that the tip is positioned and driven into and mounted. 5. A flexible wiring board having a conductive pattern formed on the surface of an insulating film is prepared. A conductive wire is cut and bent into a U-shape, and a U-shaped electrical contact having a sharpened end is prepared. A solder paste is printed on the contact forming portion of the conductive pattern on which the U-shaped electrical contact of the flexible wiring board is driven, and the flexible wiring board is in a state where the contact forming portion of the conductive pattern corresponds to the recess formed in the jig. Is placed on a jig, and the tip of the U-shaped electrical contact is positioned and driven into the contact forming portion corresponding to the concave portion of the flexible wiring board, and the solder is heated and melted to a predetermined temperature, and cooled and solidified. A method for manufacturing an electrical connection member, comprising forming a solder connection between a U-shaped electrical contact and a conductor pattern.