JPS6035179Y2 - Flat conductor cable connector - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a connector that is attached to each flat conductor at the end of a flat conductor cable for connection.

1 and 2 show examples of connections between each semiconductor 2 and connectors 3 and 4 of a conventional flat conductor cable 1. As shown in FIG. semiconductor 2
Either directly pierce the connector 3 to attach the connector and make the connection, or as shown in FIG. A method is adopted in which the semiconductor 2 is penetrated from the opposite side for the same mounting and connection.

However, in the example shown in FIG. 1, the claw piece 5 is used to punch a hole in the semiconductor, and the hole is used to make contact with the outer surface of the claw piece 5. Since the semiconductor is made of thin foil, contact is extremely difficult. It is unstable and may cause play in the contact area over time, resulting in poor connection.

Similarly, in the example shown in Figure 2, the tip of the claw piece 6 is bent back and the biting part of the tip is used to connect with the surface layer of the flat conductor, so the bending may become abnormal or the biting amount may be insufficient. If this is the case, a proper connection cannot be obtained, and the contact area of the tip of the claw may not be sufficient, resulting in a disadvantage that the reliability of the electrical connection is poor.

The present invention aims to eliminate the above-mentioned drawbacks, ensure reliable connection between each semiconductor of a flat conductor cable and its connector, and securely attach the connector to the cable.

The drawings show one embodiment thereof.

In the figure, reference numeral 8 denotes a connector, which extends along each parallel conductor 2 at the end of the flat conductor cable 1 and extends from a flat strip 10 attached to the outer surface of the sheath 7.

The flat strip 10 has a contact piece 11 at its tip for connection to another connector.

The contact piece 11 is formed by folding back the tip of the flat strip and lifting its free end slightly to form an elastic contact piece 11a.

On the other hand, on the base side of the flat strip 10, a part of the attached portion of the flat strip 10 is bent in an inverted U-shape across the width direction and brought into close contact to form an upright plate portion 12.

A vertical press-fit slot 13 is bored in the middle of the upright plate portion 12 in a vertical direction perpendicular to its width direction.

The left and right upright plate portions 12 forming the press-fit slot 13 are formed into a pair of press-fit contact pieces 14, and the thick wall of the press-fit contact pieces 14 forms the press-fit slot inner wall 13a.

The press-fitting slot 13 has a U-shape, and a press-fitting guide surface 15 for enlarging the opening is formed on the inner wall of the opening of the press-fitting slot 13, that is, the inner wall of the tip end of the press-fitting contact piece 14. A large number of fine irregularities 16 are formed on the cable sheath 7 to enhance the frictional effect with the cable sheath 7.

Reference numeral 17 denotes a longitudinal cable holding piece that is interposed on a side edge in the width direction of the flat conductor 2 press-fitted into the press-fitting slot 13, and 18 is a longitudinal cable holding piece that is inserted on the other side edge of the open flat conductor 2. As shown in the figure, the cable holding piece 17 are erected integrally with the flat strip 10 from one side edge in the width direction of the flat strip 10, and the cable holding piece 18 is erected integrally with the flat strip 10 from the other side edge. Arranged by shifting the position forward and backward with the border,
The press-fit slot 13 is inserted into the cable holding piece 17.18.
It is located on the midline between them, that is, on the longitudinal center line X of the flat strip 10.

The cable holding pieces 17, 18 are provided with cutting edges 19 at their tips for effectively performing the intervention.

In the figure, reference numerals 20 and 21 indicate a retaining piece and a press-fit protrusion that function when the present connector 1 is implanted and fixed in horizontal parallel to an insulating casing.

Further, reference numeral 22 denotes a protrusion 22 located before and after the press-fit slot 13, which bulges out in the longitudinal direction of the flat strip and also serves as reinforcement. The cable is sandwiched between the front and back.

Therefore, in order to attach and connect this connector to the end of the flat conductor cable 1, 10 pieces of flat strips are attached to the outer surface of the insulation coating along each flat conductor 2 of the flat conductor cable 1. However, by press-fitting the portion of the flat conductor sheathing 7 corresponding to the press-fitting contact piece 14 into the press-fitting slot 13 from the width direction, the flat conductor 2 and its sheathing 7 are folded in half and press-fitted. The outer covering is removed by the friction of the press-fitting slot inner wall 13a (the thick wall of the press-fitting contact piece 14), and as a result, a press-welding connection between the flat conductor 2 exposed from the covering and the press-fitting slot inner wall 13a is achieved. .

As mentioned above, the flat conductor 2 is folded in half into a U-shape, and the contact piece 1
4, substantially the entire surface of the vertical inner wall 13a of the slot 13 and substantially the entire surface of the widthwise outer surface of the flat conductor 2 which is folded in half are firmly pressed over a wide area.

In addition, the cable is press-fitted into the slot 13 at each flat conductor 2 portion, and the contact piece 14 cuts through the sheath and bites in, so the connection part is given a strong holding force against external forces, and the electrical This enables stable connection and installation with extremely high reliability.

In addition, since the flat conductor 2 is folded in half as shown in the figure, and the upper cover 7 is interposed between the two, the elastic force of the cover 7 further improves the ability of the contact piece 14 to be held in pressure contact with the flat conductor 2.

As shown in FIG. 9, the cable holding pieces 17 and 18 penetrate the cable sheathing at the left and right edges in the width direction of each flat conductor 2, that is, the cable sheathing between each flat conductor 2, and bend them inward, respectively.
By sandwiching the left and right ears in the width direction of the cable between the protrusions 22 of the flat strip 10, stronger connection and attachment can be achieved.

In particular, the cable hold-down piece 17.18 allows the press-fit slot 1 to be
By sandwiching and pressing the cable before and after 3, the flat conductor 2 is well held at the bottom of the press-fitting slot 13, and is effectively prevented from coming off in the opposite direction to the press-fitting direction.

When connecting the above-mentioned connector 8, make a cut in advance between each flat conductor 2 of the flat conductor cable 1, that is, along the left and right side edges in the width direction. If the conductors 2 are separated from each other and press-fitted into the press-fit slot 13 at the separated parts,
The individual two-fold press-fit connection of each flat conductor 2 can be performed satisfactorily without interference and without any trouble.

In this case, it is preferable that the cable holding pieces 17, 18 also intervene in the cut-off portion.

The press-fitting contact piece 14 forming the press-fitting slot 13 described above is constituted by the rising plate part 12 formed by bending a part of the attached part of the flat strip 10 to each flat conductor 2 into an inverted U shape. In addition, it is possible to use a cut-and-raised board from the flat strip 10, or to use the flat strip 10.
It is conceivable that the proximal end of the flat strip be folded back to the upper surface of the flat strip, and the free end thereof be raised up.

The present invention employs a press-fit connection mechanism for the first time as a mechanism for connecting a connector to each flat conductor of a flat conductor cable. In particular, the cable is connected to a press-fit slot 13 between a pair of press-fit contact pieces 14 for each flat conductor. Fold in half in the direction and press fit.
By using a mechanism that uses the frictional force to remove the outer coating and establish a connection, the electrical connection with the flat conductor 2, which is made of thin foil and covered with an insulating coating, is extremely stable without damaging or puncturing the flat conductor 2. Moreover, we were able to provide a connector that can be made strong.

[Brief explanation of the drawing]

Figures 1 and 2 each illustrate a conventional connection mechanism between a flat conductor cable and a connector, with Figure 1 being an enlarged cross-sectional view of the flat conductor; Fig. 3A is a partially cutaway plan view of a flat conductor cable, Fig. 3B is a cross-sectional view, and Fig. 4 and subsequent figures are plan views of a flat conductor cable connector showing embodiments of the present invention. , FIG. 5 is a side view of the same, FIG. 6A is a front view of the press-fit contact piece forming the press-fit slot, and FIG. A front view, FIG. 7 is a vertical cross-sectional view of the press-fit liquid piece showing the same press-fit connection state, FIG. 8 is a plan view of the same, and FIG. 9 is a cross section of the cable holding piece viewed from the front showing the cable holding state with the cable holding piece. It is a diagram. 1...Flat conductor cable, 2...
...Square square conductor, 7... Same insulation coating, 8...
...Connector, 10...Flat strip, 11...
... Contact piece, 12 ... Standing plate part, 13 ...
...Press-fitting slot, 13a...Inner wall, 1
4...Press-fit contact piece, 15...Press-fit guide surface.

Claims (1)

[Scope of utility model registration request] Flat conductor - A long and thin flat strip having a contact piece at the tip attached to the outer surface of the insulation coating along each parallel flat conductor at the end of the cable, and a part of the attached part of the flat strip. is raised in its width direction, a U-shaped press-fitting slot is bored in the vertical direction perpendicular to the width direction in the rising plate part, and the left and right rising plate parts forming the press-fitting slot are connected to a pair of press-fitting contact pieces. None, each semiconductor unit to which the flat strip is attached to the press-fitting slot is folded in half from its width direction and then press-fitted, and folded in half by the friction of the inner wall of the press-fitting slot (the thick wall of the press-fitting contact piece plate) caused by the press-fitting. A flat conductor cable connector designed to eliminate the outer covering of the semiconductor for connection.