JPS59141294A - Method of connecting flat cable between printed boards - 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 (a) Technical Field of the Invention The present invention relates to an improvement in a method for connecting flat cables between printed boards.

(b) Background of the Technology In recent years, electronic devices have been miniaturized by mounting components on printed boards at high density and by inserting a large number of these printed boards in parallel on shelves. As a result, it is impossible to configure the input/output circuits for each printed board only from the backboard surface of the shelf, and the input/output circuits can be connected from the front edge of the printed board via a flat cable while it is inserted into the shelf. It is configured.

(C) Prior Art and Problems This type of flat cable has conventionally been wired as shown in the perspective view of FIG.

In the figure, connectors 5 are vertically arranged on a backboard 2 of a box-shaped shelf 1. Top plate 3 of shelf 1
, guide grooves 6 are provided on the lower plate 4 to correspond to the respective connectors 5. Further, ventilation holes 3a and 4a are arranged in parallel to the guide groove 6 in the upper plate 3 and the lower plate 4.

The printed board 7 is inserted into the guide groove 6 and guided,
Contact portions arranged in parallel within the shelf 1 and formed on the insertion side are inserted into the connector 5.

With each printed board 5 mounted on the shelf 1, a printed board connector 8 is mounted on the front edge of the printed board 5 with the contact surface facing toward you.

A flat cable connector 9 is attached to the long strip-shaped flat cable 10, which is inserted into the printed board connector 8 with approximately the same pinch as the printed boards 5 arranged in parallel. By inserting each flat cable connector 9 into the corresponding printed board connector 8, the flat cable 10 can be connected to all the printed boards 7 arranged in parallel.

However, if a failure occurs in the printed board 7 and one printed board 7 is removed for maintenance and inspection, the portion of the flat cable 10 between the adjacent printed board 7 must have an extra length. Since there are almost no connectors, almost all of the inserted flat cable connectors 9 are connected to the printed board connectors 8.
The selected printed board 7 must be removed from the shelf 1 by pulling the flat cable 10 down to the lower front of the lower board 4, which is a nuisance.

(d) Object of the Invention The object of the present invention is to provide a flat cable connection method between printed boards in which the above-mentioned conventional problems are eliminated. (e) Structure of the Invention In order to achieve this object, the present invention In the invention, the printed boards inserted orthogonally in parallel to the backboard of the shelf are each equipped with a printed board connector on their front edge, and the flat cable is mounted with a printed board connector at an even pitch. A flat cable connector is attached thereto, and the wiring route of the flat cable between the adjacent printed boards is routed above or below the shelf.

(f) Embodiments of the Invention The present invention will be described in detail below with reference to all illustrated embodiments. Note that the same reference numerals indicate the same objects throughout the figures.

FIG. 2 is a perspective view of one embodiment of the present invention, and FIG. 3 is a perspective view showing important parts of another embodiment.

3- In FIG. 2, the printed board 7 inserted into the shelf 1 has a printed board connector 8 mounted on its front edge with the contact surface facing toward you, as in FIG. 1. The flat cable connector 11 is attached to the flat cable 12 with approximately equal pinch. The pitch of this flat cable connector 11 is the same as that of the printed board 70 inserted into the shelf 1.
The desired pitch is sufficiently larger than the interval.

The flat cables 12 are placed on the upper part of the upper board 3 in a direction perpendicular to the printed board 7, and the portions to which the respective flat cable connectors 11 are attached pass downward through ventilation holes 3a corresponding to the respective printed boards 7. It is suspended in the shelf 1 and introduced into the shelf 1. The suspended flat cable connector 11 is inserted into the printed board connector 8 by bending the flat cable 12 at a right angle toward the front.

Therefore, the flat cable connector 11 can be inserted and removed on the front side of the printed board 7, and the insertion and removal work is easy. Also, the selected printed board 7 is placed on shelf 1.
In order to remove the flat cable connector 11 from the printed circuit board 7, it is sufficient to remove the flat cable connector 11 inserted into the printed board 7.

In FIG. 3, a printed board connector 13 is mounted on the lower part of the front edge of the printed board 7. As shown in FIG.

The contact surface of the printed board connector 13 faces the backboard 2 (7), and the printed board connector 13 is mounted on the surface opposite to the printed board surface on which printed board components are mounted.

The flat cable connectors 14 attached to the flat cables 15 at an even pitch are connected to the lower plate 40 of the shelf 1.
They are introduced into the shelf 1 through the ventilation holes 4a, and are attached to the lower plate 4 vertically near the respective guide grooves 6, with the contact surface facing toward you. In this mounting position, the printed board 7 is inserted into the guide groove 6 and the printed board 7 is inserted into the connector 5 of the backboard 2.
This is a predetermined position to be inserted into the printed board connector 13.

Therefore, simply by inserting the printed board 7 into the shelf 1, the front edge of the printed board 7 is connected to the flat cable 15. As described above, the method shown in FIG. 3 has the advantage that the work of inserting and removing the printed board 7 is very simple.

(g) Detailed Description of the Invention As described in the present invention, since the flat cable passes above or below the upper or lower plate of the shelf and the front of the printed board is open, it is possible to This is a flat cable connection method between printed boards that has excellent practical effects such as easy insertion and removal.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing a conventional flat cable connection method, FIG. 2 is a perspective view showing an embodiment of the present invention, and FIG. 3 is a perspective view showing important parts of another embodiment. In the figure, 1 is a shelf, 2 is a backboard, 3 is an upper board, 4 is a lower board, 3a, 4a are ventilation holes, 5 is a connector, 7 is a printed board, 8.13 is a printed board connector,! 1,11.1
4 indicates a flat cable connector, and 10, 1.2.15 indicates a flat cable. 31 meals Figure 7 Eel 3 ward

Claims (1)

[Claims] The printed boards that are inserted in parallel and perpendicular to the backboard of the shelf have printed board connectors mounted on their front edges, and the flat cables are inserted into the printed board connectors at approximately equal pitches. A flat cable connection between printed boards, characterized in that a flat cable connector is attached to the printed boards, and the wiring route of the flat cable between the adjacent printed boards is routed above or below the shelf. Method.