JPS58172809A - Wiring structure using flexible circuit board - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a wiring structure using a flexible wiring board.

This type of product, for example, has a structure using a flexible printed wiring board and is widely used in household electrical supplies, automobile supplies, communication equipment, vehicle supplies, and other electrical supplies, as well as supplies called electromechanical products. There is.

Conventionally, as stain-resistant wiring materials, it is common to use such flexible wiring boards or lead wires. However, no matter which method is used, it may be necessary to open and close the board, for example, when wiring is made between the internal parts of the box and the board forming the lid of the box. requires long wiring so that it can be left open. The need to fully open the board arises, for example, at the time of maintenance.

Furthermore, depending on the electronic component, the component itself may be required to move, and in that case, of course, a correspondingly long wiring is required.

As described above, conventionally, a certain length of wiring is required, but this creates a problem in that the work of processing the wiring material becomes complicated. This is because long wiring materials must be prepared, which requires time and effort to manage, and furthermore, it is complicated to assemble long wiring materials. It also requires a space for work and is not easy to work with.

This has become a particularly important problem in the wiring structure inside integrated mechanisms of electromechanical products whose structures are becoming increasingly complex.

In view of the above-mentioned circumstances, an object of the present invention is to be able to obtain a desired long wiring structure with a simple configuration, to easily obtain the flexible wiring board itself for this purpose, and to enable wiring in a small space. To provide a wiring structure using a flexible wiring sheet metal that allows wiring and assembly and is advantageous in terms of space and work.

In order to achieve the above object, the following configuration is adopted in the present invention.

That is, in the wiring structure using a flexible wiring board of the present invention, a cut is made in a planar flexible wiring board, and the flexible wiring board is configured to be able to stretch in the cut. It should be stretchable.

With this configuration, the wiring assembly is sometimes carried out with the flexible wiring board in a flat state or with the flexible wiring board opened at a slight cut.The work is easy and space-saving because it can be stored. It's small. On the other hand, depending on the situation, when the wiring becomes fully visible for a long time, the flexible wiring board opens and stretches at the cut as necessary, so this situation can be handled without any problem. Since such a flexible wiring board can be obtained by simply making cuts in a flat board, processing of the wiring material is extremely easy.

Such a configuration is suitable for electromechanical products and the like. Since the mechanical part and the board of integrated electronic mechanical products are housed in a very narrow space, it is necessary to open and close the board during maintenance. Therefore, the wiring material must have a sufficient length, but if the wiring structure of the flexible wiring board of the present invention is used, assembly can be done in a narrow space during normal or ordinary times. When the board is opened, the wiring extends to accommodate this, and when the board is closed, it is retracted back into its original space, which is extremely advantageous.

The present invention and one embodiment will be explained below with reference to FIGS. 1 to 3.

This example uses a flexible printed wiring board to embody the wiring structure of the present invention. FIG. 1 shows a plan view of a flexible printed wiring board 5 of this embodiment. FIG. 2 is a cross-sectional view of an example of a wiring structure using the wiring board shown in FIG. 1, and FIG. I
It is a figure showing t-.

The flexible wiring board 5 of this configuration is planar as shown in FIG. 1, and has cuts 3 cut therein. The cut 3 is formed as a perforation in the state shown in FIG. Since there is such a cut 3, as shown in FIGS. 2 and 3, the wiring board is configured to be able to expand at the cut 3, and is ultimately expandable and contractible. Therefore, as shown in Figure 2, it is possible to wire the wiring while it is stored in a predetermined space, and when necessary, it can be extended as shown in Figure 3.
In addition, W and K return to the original space as shown in Figure 2.

Since the wiring board of this example is a flexible printed wiring board, it can specifically be obtained as follows. Please refer to FIG. First, the entire pattern 2 is printed spirally on the base film 1. At the same time, make a perforation along pattern 2 to make it easier to cut (9).
Put it in.

Soshite, both ends 41! Mark it so that it can be cut at this perforation when continuing. The wiring structure shown in FIG. 2 uses the spiral-shaped flexible wiring board 5 described above.

#! Please refer to Figure 2. As shown in the figure, in this example, a chassis 7 carrying an electronic component 6t and a board 9 having a connector 8 are assembled in parallel. Such an electronic component 6 is electrically connected to a connector 8 using the flexible wiring board 5 described above.

In state II of FIG. 2, the flexible wiring board 5
A part of the pipe is held in a flat state, and a part is in an elongated state M4. Therefore, wiring materials can be stored even in a very narrow space. It is also possible to prevent damage to other mechanical parts. and,
Since the wiring board 5 can be assembled in a small state, the work is not complicated and the workability is good. Additionally, there is no need to fix wiring materials or style the product during assembly, resulting in reductions in material costs and man-hours.

When the board 9 is connected, the flexible wiring board 5, which was partially flat as shown in FIG. You can become a person. Therefore, the board 9 can be opened and closed easily and without any problems during maintenance.

As mentioned above, in this embodiment, the wiring material can be stored in a very narrow space in the contracted state shown in FIG. - Can be opened. As mentioned above, the assembly process is easy and the wiring board itself can be easily obtained.

Note that when the substrate 9 is closed from the state shown in FIG. 3, it returns to the state shown in FIG. 2 again.

In the above example, the cut is 3t so that the wiring board 5 has a spiral shape.
- However, as shown in FIG. 4, alternating cuts 03 may be made in the rectangular wiring board 5 to make it expandable and contractible. In addition, depending on how the cuts are made, wiring boards with various configurations can be obtained as desired.

As mentioned above, the wiring structure using the flexible wiring board according to the present invention can be made flexible by making cuts in a planar flexible wiring board and making the flexible wiring board stretchable in the cuts. Since the wiring board is made expandable and retractable, it is possible to obtain a desired long wiring structure when necessary with an extremely simple configuration, and in this case, expansion and contraction can be performed stably without affecting electrical connections, etc., and flexible wiring for this purpose. The board itself can be easily obtained, and wiring and assembly can be done in a small space during wiring, which is advantageous in terms of space and work.

It should be noted that, as a matter of course, the present invention is not limited to the illustrated embodiment.

[Brief explanation of the drawing]

1 to 3 show one embodiment of the present invention, FIG. 1 is a plan view of the flexible wiring board, FIG. 2 is a sectional view of an example of a wiring structure using a skeleton wiring board, and FIG. Figure 1 is a cross-sectional view of the substrate when opened from the state shown in Figure 2. FIG. 4 is a plan view of a flexible wiring board in another embodiment of the present invention. 3... Cut (perforation), 5... Flexible wiring board (flexible printed wiring board). Agent Patent Attorney Tadashi Akimoto Figure 1 Figure 2 Figure 6 Figure 3 Figure 4

Claims (1)

[Claims] In a wiring structure using a flexible wiring board, a cut is made in a planar flexible wiring board so that the flexible wiring board can be stretched in the cut, thereby making the flexible wiring board expandable and contractible. A wiring structure using a flexible wiring board characterized by: