JPH028389Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a flat cable connector having a signal conducting wire and a grounding conducting wire, and these conducting wires are arranged on the same plane.

(Prior Art) Conventionally, such a connector is known to have a signal contact, a grounding contact, and a bus bar connected to the grounding contact, but in order to connect a flat cable to this connector,
The signal conductor of the cable was spot welded or soldered to the lead portion of the signal contact, and the ground conductor was spot welded or soldered to the bus bar.

(Problems to be Solved by the Invention) Conventional connectors have the disadvantage of being time-consuming because they are connected to flat cables by soldering and welding.

The object of the present invention is to eliminate such inconveniences with a simple structure.

(Means for Solving the Problems) The present invention includes a signal contact, a first grounding contact having a contact portion, and a second grounding contact having no contact portion.
A contact housing in which the lead portions of these contacts are exposed to the internal space and a bus bar are attached, and the exposed signal conductors and ground conductors of the flat cable are arranged on the same plane. the signal conductor and the ground conductor are inserted into the inner space of the contact housing; It is characterized in that it is pressed into contact with the lead portion of the signal contact and the lead portions of the first and second grounding contacts, respectively.

(Example) The drawings show an embodiment of the invention.

FIG. 1 shows the female connector B for a flat cable of the present invention separated from the male connector A.

This female connector B consists of a contact housing 1, a cable housing 2, and a cover member 3, as shown in the second figure. The cover member 3 has its hole 4
After inserting the flat cable 5 into the contact housing 1 in advance, and inserting the cable housing 2 to which the exposed signal conductor 6 and the grounding conductors 7, 7a of the flat cable 5 are attached, into the rear internal space of the contact housing 1. The hole 9 of the locking piece 8 is fitted into the protrusion 10 on the side surface of the contact housing 1 to ensure the connection between the cable housing 2 and the contact housing 1 and to prevent the intrusion of dust and the like.

The contact housing 1 is equipped with a signal contact 11, a first grounding contact 12 having a contact portion, and a second grounding contact 13 having no contact portion. The U-shaped lead portions 12a and 13a of the first and second grounding contacts 12 and 13 are longer than the U-shaped lead portion 11a of the signal contact 11, and are longer at the rear of the contact housing 1 ( It protrudes into the internal space 17 on the lead portion side).

The contact portions 11b and 12b of the signal contact 11 and the first grounding contact 12 are connected to the U-shaped lead portions 11a and 12a at positions that are offset to one side from the center of the base ends of the lead portions 11a and 12a. The proximal end is bent so as to be offset from the surface of the lead parts 11a, 11b by 1/2 of the distance between the lead parts, and one of the signal contacts 11 adjacent to each other or the signal contact 11 and the first lead part are bent. Turn one side of the grounding contact 12 over and attach it to the contact housing 1, and connect the two contact parts 11b and 11b or 11b and 1.
2b should be lined up in a straight line (up and down in the figure).

The cable housing 2 is a flat cable 5
grooves 14a, 14b of two types, deep and shallow, with a pitch that is half the distance between the signal conductors 6 of the flat cable 5 in a direction perpendicular to the width of the flat cable 5.
are formed alternately and continuously over the upper and lower surfaces, and bus bars 15 made of a conductor are attached that extend in the width direction and have grooves that slightly protrude from the bottom surfaces of the grooves 14a and 14b. To attach the signal conductor 6 and ground conductor 7 of the flat cable 5 to the cable housing 2, as shown in FIG. The ground conductor 7 is fitted into the shallow groove 14b and the deep groove 14a of the cable housing 2, and its ends are held together with the cable housing 2 by a jig 16, and then inserted into the internal space 17 of the contact housing 1. The distance between the upper and lower parts of the signal conductor 6 and the ground conductor 7 attached to the cable housing 2 is equal to the distance between the contacts 11 and 1.
Since the lead portions 11a, 12a, 13a of the leads 11a, 13a are formed slightly longer than the distance between the opposing two pieces, the conductors 6, 7 are connected to the contacts 11, 1 when inserted.
The lead portions 11a, 12a, 13a of No. 2 and 13 are pressed against each other.

After insertion, the conductors 6, 7 are cut through the hole 18 of the contact housing 1 or from the outside with a wire cutting blade 19.
cut.

The conductive wires 6 and 7 are cut at the outside so that the ground conductive wire 7 comes into contact with the bus bar 15, and at the hole 18 so that the signal conductor 6 does not come into contact with the bus bar 15.

In order to prevent crosstalk between signal groups in the connector, a suitable number of the signal conductors 6 connected to the contacts, for example, every eighth conductor, are used as ground conductors 7a, and these conductors 7a are also connected to the bus bar 1.
Cut on the outside to make contact with 5.

When the cable housing 2 is connected to the contact housing 1 in this way, the signal conductor 6 of the cable 5 is connected to the signal contact 1 as shown in FIG.
The grounding conductor 7 is in pressure contact with the short lead portion 11a of
A is in pressure contact with the first grounding contact 12 having a contact portion 12b as shown in FIG. 4, and the grounding conductor 7 is in pressure contact with the second grounding contact 13 having no contact portion as shown in FIG. press into contact with. As a result, all the grounding conductors 7 of the flat cable 5 are connected to the first grounding contact together with this conducting wire 7a via the bus bar 15 which is press-contacted by the second grounding contact 13 and the grounding conductor 7a which is press-contacted to the bus bar 15. 12 and is grounded through a contact of a male connector A connected to this contact 12.

(Effects of the invention) In the present invention, a signal contact, a first grounding contact having a contact portion, and a second grounding contact having no contact portion are attached,
A contact housing in which the lead portions of each contact are exposed to the internal space, and exposed signal conductors and ground of a flat cable to which a bus bar is attached and signal conductors and ground conductors are arranged on the same plane. a cable housing to which an end of a grounding conductor is attached and the grounding conductor contacts the bus bar, and when the cable housing is inserted into the internal space of the contact housing, the signal conductor and the grounding conductor are connected to each other. Since the lead parts of the contact and the lead parts of the first and second grounding contacts are pressure-welded, it is not necessary to connect the contacts and bus bar to the signal conductor and grounding conductor of the flat cable by spot welding or the like. Therefore, the work is simple and the connection can be made quickly.

[Brief explanation of drawings]

Fig. 1 is a perspective view of a male connector and a female connector for a flat cable according to an embodiment of the present invention connected to the male connector, Fig. 2 is an exploded plan view of an embodiment of the present invention, and Fig. 3 is a flat cable connector. FIGS. 4, 5, and 6 are perspective views of the cable housing showing the state in which the contacts, the ground conductor, and the signal conductor are connected;
FIG. 7 is an explanatory diagram of the assembly work of the contact housing and the cable housing. DESCRIPTION OF SYMBOLS 1...Contact housing, 2...Cable housing, 3...Cover member, 5...Flat cable, 6...Signal conductor, 7...Grounding conductor, 11...Signal contact, 12, 13...Grounding contact, 14a, 14b ...Groove, 15...Busbar.

Claims (1)

[Scope of utility model registration request] a signal contact, a first having a contact portion;
A contact housing in which a grounding contact and a second grounding contact having no contact portion are attached, the lead portions of these contacts are exposed in the internal space, a bus bar is attached, and a signal conductor and a grounding contact are attached. a cable housing, to which ends of the exposed signal conductor and the grounding conductor of a flat cable having conductors arranged on the same plane are attached, and the grounding conductor is brought into contact with the bus bar; When inserted into the internal space of the contact housing, the signal conducting wire and the grounding conducting wire are brought into pressure contact with the lead portion of the signal contact and the lead portions of the first and second grounding contacts, respectively. Connector for cable.