JPH067592Y2 - Flexible flat cable connector - Google Patents

Description

[Detailed Description of the Invention] <Industrial field of application> The present invention relates to a connector for a flexible flat cable capable of connecting wires to contacts without adhering or crimping wires.

<Prior Art> A pin header in which pins that are easily attached / detached are embedded between internal devices of various electronic devices and between wirings with the outside, and a socket connector provided with a contact to be fitted with the pins. Has been combined. As the wiring material, a multi-core flexible flat cable (hereinafter abbreviated as FFC) or a flexible ribbon cable (hereinafter abbreviated as FRC) is used. Conventionally, these FFC and FRC connectors are formed by inserting a contact made of a conductive material into a housing made of an insulating material and having a socket portion fitted and coupled to a pin of a pin header and a connection portion connected to the wire material. There is. Therefore, in this type of connector, the connection between the contact and the wire member is performed by welding the connection portion and the core wire with solder or the like, or by pressure welding or pressure bonding without pretreatment such as removal of the insulating coating.

<Problems to be solved by the device> However, conventional FFC and FRC welding, pressure welding, crimping, and other means of connecting wires require manual or automatic pressure welding for mounting.
It requires a special tool machine such as a crimping wire connection machine, and it is not easy to insert and remove it. It is difficult to replace the FFC and FRC, and there are drawbacks such as damage to the wire rod.

<Means for Solving the Problems> In the present invention, except for such drawbacks of the prior art, (a) the socket portion 2 connected to the pin 19 of the pin header at the tip, and press-fitted and fixed to the insulating material at the center in the center. The holding portion 3 and the connecting portion 6 in which the strip-shaped portion extending to the rear end is bent in the front end direction, and the protruding contact 5a is projected on the bent inner surface side of the bent portion are integrally formed with the elastic conductive material. Contact formed 1
(B) A plurality of insertion holes 7 into which the socket portion 2 is inserted and the holding portion 3 is press-fitted are penetrated, and both side surfaces of the rear end of the base 9 on which the connection portion 6 is placed are An insulator 8 that is engaged in a housing 11 integrally formed by an insulating material having a locking fitting hole 10 formed therethrough;
(c) The flexible flat cable 17 is mounted opposite to the base 9 and is orthogonal to the wire rod direction at the front end and the rear end.
An insertion hole 15 and an insertion groove 16 which penetrate through, an engagement protrusion 13 which is engaged with the engagement fitting hole 10 of the housing 11 at a rear end, and an engagement hook which is engaged with the housing 11 at a side surface. 14 is a connector for a flexible flat cable, which is composed of a cover insulator 12 which is integrally molded with an insulating material.

<Operation> The core wire of the FFC terminal is sandwiched by the protrusion of the contact in the bent part of the contact, and the cover insulator is pushed into the insulator to connect the core wire to the contact, and the FFC is clamped and fixed between the insulator and cover insulator. To be done.

<Embodiment> An embodiment of the FFC connector of the present invention will be described with reference to the drawings.

As shown in FIG. 1, the contact 1 used in the present invention has a socket portion 2 provided with a contact piece at its tip which is press-contacted with a pin 19 connected to the outside and an insulating material at the center. The holding portion 3, which is press-fitted and fixed, and the strip-shaped body extending toward the rear end are protruded toward the inner surface of the bent portion at a position 5 of the bent portion 4 that is bent toward the front end near the rear end. The connection portion 6 provided with (not visible) is integrally formed of an elastic conductor. It should be noted that a small circle at the position of the protruding contact shown by 5 indicates a recess on the back surface which occurs in the case of the dowel contact.

Further, as shown in FIG. 2, a plurality of sockets 2 of the contacts 1 are inserted into the tip thereof, a plurality of insertion holes 7 into which the holder 3 is press-fitted are provided, and a wire connection portion 6 is mounted. The base 9 to be placed and the fitting holes 10 for locking on both sides of the rear end thereof.
Is provided and the housing 11 is formed of an insulating material.

The socket 2 and the holder 3 are inserted into the insertion holes of the housing 11.
When and are inserted and fixed, the connection portion 6 is arranged above the base 9 to obtain the insulator 8.

On the other hand, as shown in FIG. 3, an engaging projection 13 fitted on the base 9 of the housing 11 and fitted in the engaging fitting hole 10 and an elastic engaging hook 14 engaging with the side surface of the housing 11 are provided. An insertion hole 15 or an insertion groove 16 which is provided and faces the front and rear of the base 9 and corresponds to the width of the FFC 17 and penetrates the elongated FFC 17 orthogonal to the front-rear direction is provided, and the cover insulator 12 is integrally formed of an insulating material. It is formed.

The insulator 8 and the cover insulator 12 form a connector according to the present invention.

Now, as shown in FIG. 4, the core wire 18 at one end is exposed F
FC17 is passed through the insertion hole 15 of the cover insulator 12 from the lower surface to the upper surface, and the insertion groove 16 is passed from the upper surface to the lower surface to form a U-shaped bend on the upper surface.

Then, as shown in FIG. 5, the FFC 17 is inserted into the bent portion 4 through the contact points 5 of the contacts 1 corresponding to the exposed core wires 18, respectively, and the FFC 17 is pulled in the direction of arrow A while the cover insulator 12 The engaging projection 13 is moved in the directions of arrows B and B'and inserted into the fitting hole 10 for locking, and further the FFC 17 is pulled, and the locking hook 14 is locked to the lower surface of the insulator 8 in the direction of arrow C. To do.

Therefore, as shown in FIGS. 6 and 7, the cover insulator 12 is inserted into the base 9 of the insulator 8 by inserting the FFC 17, and the bent portion 4 of the contact 1 is pressed by the lower surface of the cover insulator 12. Being F
The core wire 18 of the FC 17 is held in the bent portion 4 by the protruding contact 5a.

That is, the FFC 17 is fixedly connected only by inserting it into the contact 1.

<Effect of the Invention> As described above, according to the present invention, the contacts 1 and F
The FC17 can be clamped and fixedly connected without welding or crimping. If necessary, simply remove the cover / insulator 12 from the insulator 8 to remove the FFC17.
Can be removed and replaced easily. In addition, a tool machine such as a special crimping machine is not required for wire replacement. Further, the cover insulator 12 has a function of assisting strain at the rear portion thereof, and the tension acting on the FFC 17 does not adversely affect the electrical contact.

[Brief description of drawings]

FIG. 1 is an external perspective view of a contact used in an embodiment of an FFC connector according to the present invention, FIG. 2 is an external perspective view of an insulator in which the contact of FIG. 1 is arranged and the contact, and FIG. FIG. 2 is an external perspective view of a cover insulator in which the FFC is fixedly connected by fitting with the insulator of FIG. 2, (a) is an external perspective view, (b) is a vertical cross-sectional side view at a position indicated by a chain double-dashed line, and FIG. Is the cover of Fig. 3
FIG. 5 is an external perspective view of inserting the FFC into the insulator, FIG. 5 is an external perspective view of connecting the FFC in FIG. 4 to the contact, and FIG. 6 is a view of FIG. 5 in which the FFC is tightened to fit the cover insulator and the insulator. , A perspective view of the appearance of the connected connector, and FIG. 7 shows F in FIG.
It is a vertical side view which passes along the center of FC. In addition, 1 ... Contact, 2 ... Socket part, 3 ... Holding part, 4 ... Bent part, 5 ... Contact position, 5a ... Protruding contact, 6 ... Connection part,
7 ... Insertion hole, 8 ... Insulator, 9 ... Base, 10 ... Locking fitting hole, 11 ... Housing, 12 ... Cover insulator, 13 ... Engaging protrusion, 14 ... Locking hook, 15 ... Inserting hole, 6 ... insertion groove, 17 ... flexible flat cable, 18 ... core wire, 19 ... pin.

Claims (1)

[Scope of utility model registration request] 1. A socket portion 2 having a tip connected to a pin 19 of a pin header, a holding portion 3 which is press-fitted and fixed to an outer insulating material at a center, and a strip-shaped portion extending to a rear end is bent in a tip direction. The connection portion 6 having the protruding contact 5a protruding from the bent inner surface side of the bent portion is integrally formed of an elastic conductive material, and the socket portion 2 is inserted. A plurality of insertion holes 7 into which the holding portion 3 is press-fitted are penetrated, and the connection portion 6
Housing 1 integrally formed of an insulating material having locking fitting holes 10 penetrating both sides of a rear end of a base 9 on which the
1. An insulator 8 engaged in 1 and an insertion hole 15 and an insertion groove 16 which are mounted opposite to the base 9 and through which a flexible flat cable 17 penetrates at a front end and a rear end orthogonal to a wire rod direction. And an engagement protrusion 13 which is engaged with the engagement fitting hole 10 of the housing 11 at the rear end.
And a locking hook 14 that is locked to the housing 11 on the side surface.
Is a connector for a flexible flat cable, which is composed of a cover insulator 12 integrally molded with an insulating material.