JPH0336036Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a flat cable connection structure for connecting a flat cable in which a plurality of core wires are arranged at regular intervals to a printed wiring board.

Conventionally, the core terminal of a flat cable is connected to a printed wiring board (hereinafter referred to as PWB) by peeling off the outer sheath of the cable terminal, and then using soldering pads and core wires provided on the PWB at intervals corresponding to the spacing between the cable cores. A structure was adopted in which the parts were directly soldered.

However, in such a connection structure, when the distance between the core wires of the flat cable becomes narrow, adjacent core wires may bend and come into contact with each other, or a solder bridge may occur during soldering. Furthermore, it is extremely difficult to align the cable core end with the soldering pad of the PWB. In addition, the connection between the cable core end and the soldering pad is fixed by reflow soldering, so this fixing part is vulnerable to external forces. There are disadvantages such as the need to protect the connecting and fixing parts by fixing them with etc.

The object of the invention is to provide a connection structure that eliminates the above-mentioned drawbacks.

In the connection structure of the present invention, a connecting member made of a conductive material, which has a flat plate part and a plurality of protrusions formed perpendicularly to the plate surface of the flat plate part, is arranged at the terminal part of the flat cable, and a connecting member that protrudes from the terminal part is arranged. connecting at least one predetermined core wire of the core wires to the flat plate portion, inserting and fixing the protrusion into a through hole formed in advance in the printed wiring board, and core wires not connected to the flat plate portion; At least one of them is connected to a pad previously formed on the printed wiring board.

Next, the present invention will be explained in detail with reference to the drawings.

FIG. 1 is a perspective view of a connecting member 1 used in an embodiment of the present invention, FIG. 2 is a perspective view showing the connection between the connecting member 1 and the core wire 3 of a cable 2, and FIG. 3 is an embodiment of the present invention. It is a sectional view showing an example.

The connecting member 1 has a flat plate part 1a to which the core wire of the flat cable is soldered, and protrusions 1b inserted into the through holes of the PWB and arranged in a comb-like shape perpendicular to the plate surface of the flat plate part 1a. Consists of materials.

To connect the flat cable 2 and the connecting member 1, as shown in FIG. 2, the outer sheath 2a of the terminal end of the flat cable 2 is peeled off in advance, the core wire 3 is bent and formed, and then soldered to the flat plate part 1a. This is done by In this way, the connection member 1 that is connected and fixed
and the flat cable 2, as shown in FIG.
Fix it to PWB5 by inserting it into a and soldering it. Furthermore, the remaining core wire 4 of the flat cable 2 is connected to the soldering pad 5b of the PWB 5. At this time, since the pitch between the core wires 4 is wide, the wires can be easily connected without contacting each other.

As described above, the present invention has the advantage that positioning the core wire and the soldering pad, fixing the unfinished end of the flat cable, and soldering the core wire can be easily performed.

[Brief explanation of drawings]

Fig. 1 is a perspective view of a connecting member used in an embodiment of the present invention, Fig. 2 is a perspective view showing the connection between the connecting member and a flat cable, and Fig. 3 is a cross section showing an embodiment of the present invention. It is a diagram. In FIG. 1, FIG. 2, and FIG. 3, 1...
Connection member, 1a... flat plate part, 1b... protrusion, 2...
...Flat cable, 2a...Sheath, 3...Core wire, 4...Core wire, 5...Printed wiring board, 5a...
...Through hole, 5b...Soldering pad.

Claims (1)

[Scope of utility model registration request] A flat cable connection structure that connects a flat cable in which a plurality of core wires are lined up at regular intervals and a printed wiring board, which has a flat plate part and a plurality of protrusions formed perpendicular to the plate surface of the flat plate part. A connecting member made of a conductive material is disposed at the terminal portion of the flat cable, and at least one predetermined core wire of the core wires protruding from the terminal portion is connected to the flat plate portion, and the connecting member is connected to the printed wiring board. A flat cable connection characterized in that the protrusion is inserted and fixed into a pre-formed through hole, and at least one of the core wires not connected to the flat plate part is connected to a pad pre-formed on the printed wiring board. structure.