JPS59107591A - Method of connecting flexible printed 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] [Field of Application of the Invention] The present invention relates to a method for connecting flexible printed boards, and particularly relates to a method for connecting flexible printed boards to wiring boards, etc. using connecting members that are easy to attach and detach and are inexpensive. .

[Prior art]

Conventionally, flexible printed boards and rigid wiring boards, etc., have been commonly connected by soldering, which poses a problem in that it takes a lot of time and effort to replace and remove them.

Furthermore, when a connector is interposed to facilitate attachment and detachment, a new problem arises in that the cost increases significantly.

[Purpose of the invention]

The present invention has been made in view of the above circumstances, and its purpose is to solve the above-mentioned problems in the conventional method of connecting a flexible printed board to a wiring board, etc., and to provide a connecting member that is easy to attach and detach and is inexpensive. An object of the present invention is to provide a method for connecting a flexible printed board to a wiring board or the like using the above method.

[Summary of the invention]

The gist of the present invention is to provide a slit in a wiring board, etc. to which a flexible printed board is connected, to provide connection pads of the wiring board, etc. along the slit, and to bend the flexible printed board after inserting it through the slit. The flexible printed board is then inserted into the slit again from the opposite direction, a connecting member is interposed in the space of the flexible printed board created here, and the connecting member is inserted and locked into the slit of the wiring board, etc. The present invention is characterized in that the connection pads on the printed board are connected to the connection pads on the wiring board or the like.

[Embodiments of the invention]

Embodiments of the present invention will be described in detail below with reference to the drawings.

FIG. 1 is a perspective view of constituent elements for explaining one embodiment of the present invention, where l is a rigid printed board, 2 is a connection bar, and 3 is a flexible printed board. The rigid printed board 1 is provided with a slit 4.
Along and on both sides thereof, there are adjacent connection pads 5 connected to the pattern IO. The connection bar 2 is a bar with a T-shaped cross section, and has locking claws 6 at both ends, and is used to press the flexible printed board 3 to the rigid printed board 1, as will be described later. The flexible printed board 3 has connection pads 5 of the rigid printed board 1.
It has a connection pad 7 connected to.

The connection method of this embodiment using the elements configured as described above will be described below.

As shown in FIG. 2, the flexible printed board 3 is inserted into the slit 4 of the rigid printed board 1, and the connecting bar 2 is wound around the slit 4 again.
Insert from the opposite direction. Then, the connection hatch 7 of the flexible printed board 3 and the connection pad 5 of the rigid printed board 1 are made to correspond correctly, as shown in FIG.
Connect the connecting bar 2 to the slit 4 of the rigid printed board 1. and the rigid printed board 1 is locked with the locking claw 6. FIG. 4 shows this state, and FIG. 5 is a sectional view taken along arrows B and B'. As a result, the flexible printed board 3 is fixed to the rigid printed board 1 with the corresponding connection pads of the flexible printed board 3 and the rigid printed board 1 in contact with each other.

In the above explanation, the flexible printed board 3 is inserted with the connecting bar 2 inserted halfway into the slit 4 of the resin printed board l, but the flexible printed board 5 is inserted into the connecting bar 2. There is no problem in inserting it later into the space of the curved part created by the process. In addition, by inserting a unidirectional conductive rubber sheet between the connection pad 5 of the rigid printed board 1 and the connection pad 7 of the flexible printed board 3, uneven contact pressure between the connection pads can be eliminated, resulting in higher Connection reliability can be obtained. Furthermore, by using a flexible printed board provided with a reinforcing plate instead of the above-mentioned rigid printed board 1, it is also possible to connect the flexible printed boards to each other.

The connection bar 2 used in the explanation of the embodiment has a cross-sectional shape of T.
Although a letter shape is used, other similar shapes may be used. Although the connecting bar 2 is integrally provided with the locking pawl 6, it is also possible to install a spring 8 in the connecting bar 2 as shown in Figure 6 of the cap.

FIG. 7 shows an example in which a guide hole 9 is added to the upper part of the connection bar 2 to prevent the flexible printed board 3 from shifting. For the same reason, rigid printed board 1
The width of the slit provided in the flexible printed board 3 may be the same as that of the flexible printed board 3, and a hole for inserting the locking claw 6 of the connection bar 2 may be provided separately.

Figure @a shows an example in which connection pads are provided only on one side of the connection bar 2, and the cross-sectional shape of the connection bar 2 is changed. Further, FIG. 9 shows an example in which the corners of the connection bar 2 are eliminated and the whole is rounded to prevent damage to the flexible printed board 3, disconnection, etc. In addition,
The drawer pattern 10 of the flexible printed board 3 may be independent for each connection pad as shown in 101ffl, or may be common as shown in FIG. 11. The same applies to the drawer pattern of the rigid printed board 1.

[Effects of the Invention] As described above, according to the present invention, it is possible to connect a flexible printed board and a wiring board, etc. with a simple mechanism of a combination of a connection bar and a slit, thereby reducing costs. This has the remarkable effect of realizing a flexible printed board connection method that simultaneously satisfies the requirements of ease of attachment and detachment, ease of operation, and high maintainability.

[Brief explanation of drawings]

FIG. 1 is a perspective view of the components of the embodiment, and FIG. 2 is a perspective view of the components of the embodiment. Figure 3 is a sectional view taken along arrows A-A' in Figure 1 in the assembled state, Figure 4 is a perspective view showing the assembled state, and Figure 5 is the B=
B' arrow sectional view, v, 6, and 7 are sectional views corresponding to FIG. 5 showing another embodiment, and FIGS. 8 and 9 are sectional views corresponding to FIG. 3 showing another embodiment. 10 and 11 are partial plan views of the flexible printed board. - 1: Rigid printed board, 2: Connection bar, 3 = Flexible printed board, 4 Nislit, 5, 7: Connection pad,
6: Locking claw. Figure 1 Figure 2 Figure 3 Figure 3 Figure 4 Figure 5 Item 6 Item 7

Claims (1)

[Scope of Claims] α) In the method of connecting a flexible printed board to a wiring board, etc., a slit is provided in the wiring board, etc., and connection pads of the wiring board, etc. are adjacently connected along the slit, and the flexible printed board is connected to the flexible printed board. is inserted into the slit, and then inserted into the slit again from the opposite direction with a curved slit, and a connecting member is interposed in the space of the flexible printed board created here,
A method for connecting a flexible printed board, comprising connecting a connecting pad of the flexible printed board and a connecting pad of the wiring board by inserting and locking the connecting member into a slit of the wiring board or the like. . (2) The method for connecting a flexible printed board according to claim 1, wherein the connecting member has a substantially T-shaped cross section and has locking members to a wiring board or the like at both ends thereof. . (3) The method for connecting flexible printed boards according to claim 1 or 2, wherein the connecting member is inserted and locked into the slit provided in a wiring board or the like.