JPH03145074A - Connection method for flexible substrate - Google Patents

Abstract

PURPOSE:To prevent failure in contact caused by separation of a flexible substrate, shifting of terminal or the like by inserting clamping members into through parts for positioning, and connecting and fixing the flexible substrate and a printed circuit board together. CONSTITUTION:Through parts 104a, 104b for positioning are arranged at substrates 102, 103 near the position where a terminal 20 of a flexible substrate 102 and a terminal 202 of a printed circuit board 103 are brought into contact. The substrate 102 and the board 102 are connected and fixed together by a clamping member 101 inserted into the parts 104a, 104b. It is thus possible to prevent contact error caused by shifting of the terminal 202, to attain automation and to improve workability.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a connection method for flexible substrates, and is particularly applicable to cameras, cages, video cameras, etc. that require miniaturization, due to the thinness of the substrate. This is a suitable method for connecting flexible boards and printed circuit boards, which are also used as materials.

[Conventional technology] - Traditionally, the connection between flexible circuit boards and printed circuit boards has been
Connection methods included crimping by heating, soldering with a soldering iron, and connectors.

[Problem to be solved by the invention]

However, the above-mentioned conventional techniques have problems in that they are difficult to automate and are performed manually, resulting in poor work efficiency and high costs. Further, there is a problem that the flexible substrate may peel off or contact failure may occur due to misalignment of the terminals.

The present invention aims to solve the above problems. That is, an object of the present invention is to provide a flexible substrate connection method that enables automation, reduces costs, and does not cause terminal contact failure.

[Means to solve the problem]

In order to achieve the above object, the flexible board connection method of the present invention has a positioning penetration part provided in both the boards near the position where the terminal of the flexible board and the terminal of the printed circuit board contact, Moreover, the flexible board and the printed circuit board are connected and fixed by passing a clamp member through the positioning penetration part.

[For production]

According to the present invention, a through part such as a hole or a cutout for positioning is provided in both boards so that the terminal of the flexible board and the terminal of the printed circuit board come into contact with each other, and the clamp material is passed through the through part for positioning. Since the two substrates are connected and fixed, contact failures such as peeling of the flexible substrate and displacement of the terminals are prevented, automation is possible, and ease of assembly can be improved.

(Embodiment) FIGS. 1 to 3 show a first embodiment of the present invention.

In Figure 'i41, 101 is a clamp material, 102 is a flexible board, and 103 is a printed board. Patterns 105, 106, 107, 108, 109 are on the printed board 103 side of the flexible board 102, and patterns 111, 112, 113, 114 are on the printed board 103.
．． 115 and 116 are pulled, and the clamp member 101 is inserted into the holes 104a and 104b serving as a positioning through hole to fix both the substrates 102103. , Figures 2 and 3 are cross-sectional views of Figure 1,
As shown in FIG. 2, the clamp member 101 has a key-shaped tip and has positioning holes 104a and 104b.
After being inserted into the terminal 201 of the flexible board 102
and the terminals 202 of the printed circuit board 103 are fixed so that a force is always applied to them. In addition, the clamp material 101 is attached to the flexible substrate 102 in order to improve contact between the terminals.
The contact surface is serrated.

That is, near the position where the terminal 201 of the flexible board 102 and the terminal 202 of the printed circuit board 103 contact,
Positioning holes 10 provided in both substrates 102 and 103
By simply inserting the clamp material 101 into 4a and 104b and fixing both the boards 102 and 103 with the clamp material 101, poor contact such as misalignment between the terminals 201 and 202 can be eliminated, and peeling of the flexible board 102 can be prevented. be able to. Furthermore, since it is a simple task, it is easy to automate.

FIG. 4 shows a second embodiment of the invention.

In the first embodiment described above, the clamping material 101 was used to secure the flexible substrate 402 and the printed base 403 at two locations, but in this second embodiment, three positioning holes were provided, and the flexible substrate 402 and the printed base 403 were fixed using the clamping material 401. It is fixed at

That is, the flexible board 402 has terminals 404.4.
05.408.407, and the printed circuit board 403 has terminals 408.409.410.4. Similarly to the first embodiment, by inserting the clamping material 401, the terminals are always connected. It is fixed so that a pinching force is applied. In other words, the flexible board 402 and the printed circuit board 4
In 03, holes as penetration parts for positioning are provided in three places so as to avoid the terminals (patterns), and the clamp member 401 is also configured to be fixed with three legs.

In this way, in the first embodiment described above, the clamp material 101
However, as the number of terminals increases and the width of the flexible board becomes wider, sufficient contact pressure cannot be secured by fixing in two places, so in this second embodiment, three
By providing holes for positioning at certain locations and fixing with the three legs of the clamp member 401, it is possible to accommodate a wide flexible board 402.

In each of the above embodiments, the positioning penetration portion is a hole, but it may be a notch.

〔Effect of the invention〕

As explained above, according to the present invention, in connecting a flexible board and a printed circuit board, a clamp member is installed in a positioning through hole provided in both boards near the position where respective terminals of both boards touch. By passing
Since the flexible substrate and the printed circuit board are connected and fixed, poor contact such as peeling of the flexible substrate and displacement of terminals is prevented, automation is possible, and workability is improved.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing a first implementation of the present invention, FIG. 2 is a front sectional view of FIG. 1, FIG. 3 is a side sectional view of FIG. 1, and FIG.
The figure is a front sectional view showing a second embodiment of the present invention. 101.401... Clamp material 102.402... Flexible board 103.403
...Printed circuit boards 104a, 104b...4 people for positioning

Claims (1)

[Scope of Claims] 1. A through-hole for positioning is provided in both boards near the position where the terminal of the flexible board and the terminal of the printed circuit board come into contact, and a clamping material is provided in the through-hole for positioning. A method for connecting a flexible substrate, characterized in that the flexible substrate and the printed circuit board are connected and fixed by passing the flexible substrate through the printed circuit board. 2. The flexible substrate connection method according to claim 1, wherein the contact surface of the clamp material with the flexible substrate is serrated. 3. The flexible substrate connection method according to claim 1 or 2, wherein the positioning penetration portion comprises either a hole or a notch.