JP2521576Y2 - Printed wiring board - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a printed wiring board to which a flexible board is connected.

[0002]

2. Description of the Related Art As a method of connecting another printed wiring board or an electronic component such as an LCD to a printed wiring board, one end side of a flexible board is connected to the printed wiring board and another printed wiring board is connected to the other end side of the flexible board. There is a method of connecting plates and the like. When such a method is used, since the printed wiring board and the flexible board are connected to each other in a planar pattern portion, the end of the flexible board is positioned at a predetermined position of the printed wiring board by a jig. It is necessary to solder both pattern parts in this state.

5 to 8 show a conventional connecting method in which a positioning pin is used to position a printed wiring board and a flexible board.

As shown in FIG. 5, a plurality of connecting pattern portions 3 are provided near the end portion of the printed wiring board 1.
7 and 8 are provided on both sides of the connecting pattern portion 3.
A jig hole 5 for positioning is provided with a positioning hole 9 into which a standing pin 7 is inserted. On the other hand, as shown in FIG. 6, the flexible substrate 11 is provided with a plurality of pattern portions 13a connected to the connecting pattern portion 3 of the printed wiring board 1 on one end 11a side. Thirteen
Holes 15a into which the positioning pins 7 are inserted are formed on both sides of a. In addition, the other end 1 of the flexible substrate 11
A pattern portion 13b connected to another printed wiring board (not shown) and a hole portion 15b for positioning are also provided on the 1b side.

Then, as shown in FIGS. 7 and 8, first,
The printed wiring board 1 with the positioning pin 7 inserted in the positioning hole 9 is placed on the jig base 5, and then the hole 15
The flexible board 11 in which the positioning pin 7 is inserted in a is placed on the printed wiring board 1 and the pattern part 13a is positioned on the connecting pattern part 3, and both pattern parts 3, 1
3a is soldered.

However, this conventional printed wiring board 1
According to the above, since the positioning hole 9 is formed in the printed wiring board 1 itself, various patterns (not shown) formed on the printed wiring board 1 need to avoid the positioning hole 9. Therefore, not only the pattern design becomes difficult, but also the printed wiring board 1 and the electronic equipment in which the printed wiring board 1 is housed become large in size.

Further, in order to reduce the area of the flexible substrate 11 occupying the printed wiring board 1, a connecting pattern is used.
Since it is necessary to provide the switch part 3 in the vicinity of the end of the printed wiring board 1, the positioning hole 9 is normally used as the connecting pattern part 3.
It is provided on both sides of. Therefore, the flexible substrate 11
Since the holes 15a on the side also need to be provided on both sides of the pattern 13a, the width of the flexible substrate 11 is increased by the amount of forming the holes 15a.
There was a problem that 1 became expensive.

[0008]

As described above, in the conventional printed wiring board, since the positioning hole for positioning the flexible board connected to this printed wiring board is formed, the pattern drawing is performed. There is a problem that the design for turning becomes difficult, the printed wiring board becomes large-sized, and the electronic equipment in which the printed wiring board is housed becomes large-sized.

The present invention has been made in view of the above-mentioned conventional drawbacks, and the positioning hole portion required for positioning the flexible substrate affects the routing of various patterns. It is an object of the present invention to provide a printed wiring board that can be provided without any need.

[0010]

A printed wiring board according to the present invention has a product substrate on which electronic components are mounted, and a waste substrate connected to the product substrate and cut from the product substrate. Is provided with a connecting pattern portion to which a pattern portion provided on the flexible substrate is connected, and the discarding substrate is provided with a positioning hole portion into which a positioning pin for positioning the flexible substrate is inserted. It has been configured.

[0011]

In the present invention, the flexible board is positioned by the positioning pins inserted in the positioning holes of the waste board, and the flexible board pattern section is aligned with the connecting pattern section of the product board. Is positioned and after the connection pattern part and the pattern part of the flexible board are soldered, the discarded board is removed from the product board.

[0012]

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

FIG. 1 is a plan view of a printed wiring board according to the present invention, FIG. 2 is a plan view of a flexible board connected to the printed wiring board of FIG. 1, and FIGS. 3 and 4 are the printed wiring board and flexible board. FIG. 3 is a side view and a plan view showing a state in which is mounted on a jig.

The printed wiring board 21 according to the present invention is shown in FIG.
As shown in FIG. 3, the product board 23 on which electronic components are mounted and the discard board 25 that connects a plurality of the product boards 23 are configured. In this printed wiring board 21, the product substrate 23
Since the groove 27 for cutting is provided between the waste substrate 25 and the waste substrate 25, the waste substrate 25 can be easily cut from the product substrate 23 on which the electronic component is mounted. Therefore, according to this printed wiring board 21, when mounting an electronic component, the electronic component can be mounted on the small product board 23 in the state of the large printed wiring board 21 which is easy to handle, and after mounting, it is discarded. By removing the substrate 25, it is possible to obtain a plurality of electronic circuit parts using the product substrate 23 as a substrate.

In this printed wiring board 21, each product board 23 is provided with a plurality of connection pattern portions 31 for connecting the flexible board 29 shown in FIG. The connecting pattern portion 31 is provided at the end portion of the product substrate 23 so that the area of the flexible substrate 29 occupying the product substrate 23 becomes small. In addition, the discarding board 25 has a positioning hole portion 35 into which a positioning pin 34 provided upright on a jig base 33 shown in FIGS. 3 and 4 is inserted.
Has been drilled. Two positioning holes 35 are provided at positions corresponding to the connection pattern parts 31 provided on each product board 23. In addition, each product board 23
The distance L between the two positioning holes provided corresponding to each of the plurality of connection pattern portions 31 is equal to that of the product substrate 2.
The width is about the same as the width of the portion occupied by 3.

On the other hand, as shown in FIG. 2, the flexible substrate 29 is provided with a plurality of pattern portions 37a connected to the connecting pattern portion 31 of the product substrate 23 on one end 29a side, and these pattern portions 37a are provided. A pair of holes 39a, into which the positioning pins 34 are inserted, are provided at a predetermined distance from the connection portion 37a. The pair of holes 39a are provided so as to correspond to the above-described positioning holes 35. When the holes 39a are aligned with the positioning holes 35, the pattern part is formed on the connecting pattern part 31. 37a is positioned. In addition, the other end 29 of the flexible substrate 29
A pattern 37 portion b connected to another printed wiring board (not shown) and a hole portion 39b for positioning are also provided on the side b.

Next, the process of connecting the flexible board 29 to the printed wiring board 21 will be described.

First, as shown in FIGS. 3 and 4, the printed wiring board 21 in which the positioning pins 34 are inserted into the positioning holes 35 corresponding to the upper product substrate 23 is located.
Is placed on the jig stand 33, and then the flexible board 29 in which the positioning pins 34 are inserted into the holes 39a is placed on the printed wiring board 21, and the pattern part is formed on the connection pattern part 31. 37a is positioned so that both pattern parts 31, 37
Solder a.

This completes the connection between the product substrate 23 located above the printed wiring board 21 and the flexible substrate 29. Similarly, the product substrate 23 located in the middle and the lower part of the printed wiring board 21 and the flexible substrate 29 are connected, and when the connection is completed, the discarded substrate 25 is removed from the product substrate 23. This completes the connection process.

As described above, in the printed wiring board 21 of this embodiment, it is not necessary to form the positioning holes 35 in the product substrate 23 on which various patterns (not shown) are formed, so that the positioning is performed. Various patterns can be routed to the product substrate 23 without being affected by the use hole portion 35. Therefore, it is possible to reduce the size of the product board 23, and thus the electronic equipment in which the product board 23 is used. Further, since the space L between the pair of positioning holes 35, 35 can be made smaller than the lateral width of the space required for arranging the plurality of connection pattern parts 31, it is connected to the product substrate 23. The width of the flexible substrate 29 may be any size required to provide the pattern portion 37a. Therefore, the width of the flexible substrate 29 does not become large by providing the hole portion 39a. In this case, the holes 39a and 39b are located between the pattern portions 37a and 37b, but the pattern (that connects the pattern portions 37a and 37b) is formed. Since it is easy to draw (not shown) around the holes 39a and 39b, there is no problem.

In this example, the printed wiring board 21 having a plurality of product substrates 23 has been described, but it is also possible to dispose a waste substrate on one product substrate and form a positioning hole in this waste substrate. .

[0022]

As described above, in the printed wiring board of the present invention, the discarding board is provided with the positioning hole into which the positioning pin for positioning the flexible board is inserted, and various patterns are provided. Since it is not necessary to form the positioning holes on the side of the product substrate where the holes are formed, the positioning holes do not affect the routing of various patterns. Therefore, it is possible to miniaturize the product board and further miniaturize the electronic device using the product board.

[Brief description of drawings]

FIG. 1 is a plan view of a printed wiring board according to an embodiment of the present invention.

FIG. 2 is a plan view of a flexible board connected to the product board of the printed wiring board of FIG.

FIG. 3 is a side view showing a state in which the printed wiring board and the flexible board are placed on a positioning jig.

FIG. 4 is a plan view of FIG. 3;

FIG. 5 is a plan view of a conventional printed wiring board.

6 is a plan view of a flexible board connected to the printed wiring board of FIG.

7 is a side view of the printed wiring board of FIG. 5 and the flexible substrate of FIG. 6 placed on a positioning jig.

FIG. 8 is a plan view of FIG.

[Explanation of symbols]

 21 ... Printed wiring board 23 ... Product board 25 ... Waste board 29 ... Flexible board 31 ... Connection pattern part 34 ... Positioning pin 35 ... Positioning hole part 37a ... Pattern part

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Hirohisa Fujii 1-1, 3-1, Asahigaoka, Hino City, Tokyo TOSHIBA A ・ V ・ E ・ E Co., Ltd. Hino Office

Claims (1)

(57) [Scope of utility model registration request] 1. A pattern section provided on a flexible board, the product board having an electronic component mounted thereon, and a waste board connected to the product board and cut from the product board. The printed wiring board is characterized in that a connecting pattern portion for connecting the connector is provided, and the discarding board is provided with a positioning hole into which a positioning pin for positioning the flexible board is inserted.