JPH0132696Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a flat cable (hereinafter referred to as FC) connector that can increase packaging density.

[Technical background of the invention and its problems] The 6th conventional 2.54mm pitch FC connector
There is a two-piece FC connector consisting of a receptacle (pressing side) 10 shown in FIG. 6A and a header (board side) 20 shown in FIG. 6B. The above receptacle 10
As shown in FIG. 7, the pitch of the core wires 12 of the FC 11 is, for example, 1.27 mm, and the connector 13 to which the core wires 12 are press-connected is constructed as follows.
That is, a plurality of contact insertion holes 15 are formed in two rows along the longitudinal direction on one surface of the rectangular parallelepiped insulator 14, and the contact insertion holes 15 are formed in each row with an interval of 2.54 mm. The contact insertion holes 15 in the rows and the second row are formed in a staggered manner and are offset by 1.27 mm from each other. In each contact insertion hole 15, a contact 17 having, for example, a U-shaped pressure contact portion 16 is planted. The arrangement of the contacts 17 is shown in Fig. 8, and by press-welding the above-mentioned FC11 with a pitch of 1.27 mm, two contacts arranged in a row at a spacing of 2.54 mm are installed in parallel on the insulator. It is possible to increase the packaging density compared to . However, recently there has been a desire to develop a flat cable connector that can further increase the packaging density.

In addition, in FIG. 6, 18 is a strain relief, 21 is an insulator, 22 is a contact,
23 is an insertion/extraction tool.

[Purpose of invention]

The present invention has been made to satisfy the above-mentioned needs, and its purpose is to provide a flat cable connector that can be made compact and has a considerably high packaging density.

[Example of idea]

Hereinafter, the present invention will be explained with reference to the drawings. Here, explanation will be given using a two-piece FC connector as an example, but the present invention is not limited to this. FIG. 1 is a cross-sectional view showing one embodiment of this FC connector, which consists of a receptacle (pressing side) 30 and a header (board side) 40. The receptacle 30 is a rectangular parallelepiped insulator body 3
1. A central partition wall 32, a contact 33, strain reliefs 34, 35 (to be described later), and FC 36 with a pitch of 1.27 mm are formed along the longitudinal direction on this one surface.
It is made up of

2a and 2b are a plan view and a front view of the receptacle of FIG. 1, and FIGS. 3 and 5 are a sectional view and a perspective view of the receptacle 30.

As shown in FIG. 1, the header 40 includes an insulator 41 that can be inserted into and removed from the receptacle 30, and a contact 42 provided inside the insulator 41 and a contact 33 of the receptacle 30 that can be electrically connected to and separated from the insulator 41. .

Strain reliefs 34 and 35 shown in FIG. 3 are removably provided on the insulator main body 31, and FIG. 2 shows the receptacle main body 37 with these and the FC 36 removed.
A plurality of contact insertion holes 31a are formed on both sides of the central partition wall 32 of the insulator body 31 at a pitch of 1.27 mm, for example, in the direction in which the central partition wall 32 extends. Two types of contacts 33 having different lengths are alternately inserted and fixed in each row (on both sides of the central partition wall 32) into each contact insertion hole 31a. Each contact 33 includes a substantially linear leg portion 33a and a U-shaped pressure contact portion 33b formed integrally with the leg portion 33a and bent at an approximately right angle, and the connecting portion between the U-shaped pressure contact portion 33b and the leg portion 33a is There are two types: long and short. This 2
The contacts 33 of different types are arranged alternately in the contact insertion holes 31a of the insulator main body 31 in each row, and the blades of the U-shaped pressure contact portions 33b face in the opposite direction to the central partition wall 32, and
Each blade part of the U-shaped pressure contact part 33 on both sides of the central partition wall 32
They are inserted and fixed at the same distance from each other.

U-shaped pressure contact portions 33 of each contact 33 on both sides of the central partition wall 32 of the receptacle body configured as described above.
Two FCs 36 are pressed into contact with each other by a jig (not shown). FIG. 4 is a diagram showing this state. A strain relief 34 is installed above the central partition wall 32 in advance when the FC 36 and the U-shaped pressure contact portion 33b of the contact 33 are brought into pressure contact. By doing this, when pressure welding FC36,
It can prevent FC36 from deforming, and therefore FC36
The U-shaped press-contact portion 33b of the contact 33 can be reliably press-contacted. Then, with the two FCs 36 completely pressed against the U-shaped pressure welding portion 33b of each contact 33, the strain relief 35 having a long hole 35a in the center is inserted from the end of the FC 36 as shown in Fig. 3, and finally the insulator It is attached to the main body 31. In this way, the receptacle 30 is assembled.

As described above, the central partition wall 32 is formed on one surface of the insulator main body 31, and the contact insertion holes 31a are formed on both sides of the central partition wall 32 at a pitch of, for example, 1.27 mm.
Two types of contacts 33 with different protruding lengths of the U-shaped pressure contact portions 33b are inserted and fixed into the U-shaped pressure contact portions 33a.
For example, FC36 with a pitch of 1.27 mm is pressure-welded to b, so the mounting density can be considerably increased. In other words, the packaging density can be further increased compared to the conventional FC connector shown in FIG. This allows for compactness. 2 more
The two FC36s sandwich the strain relief 34 and are inserted into the elongated holes 35a of the strain relief 35.
Since two FC36 are inserted, even if an external force or tensile force is applied to the FC36, the corner of the strain relief 34 and the elongated hole 3 of the strain relief 35
Since it is blocked by the periphery of the FC 36, it is not transmitted to the pressure contact portion 33b of the contact 33, and the pressure contact portion of the FC 36 is protected.

[Effect of idea]

According to the present invention, it is possible to provide a flat cable connector that can have a high packaging density and can be made compact.

[Brief explanation of drawings]

Figure 1 is a sectional view of the receptacle body and header showing an embodiment of the flat cable connector according to the present invention, Figures 2a and b are a plan view and front view of the receptacle body of Figure 1, and Figure 3 is the main body. FIG. 4 is a cross-sectional view showing an example of the receptacle according to the invention, FIG. 4 is a diagram showing the connection relationship between a flat cable and a contact, FIG. 5 is a perspective view showing an example of the receptacle according to the invention, and FIGS. Figure 7 is a perspective view showing the relationship between the flat cable in Figure 6a and the receptacle body, and Figure 8 is a front view of the receptacle side and header side of a 2.54mm pitch two-piece flat cable connector. FIG. 3 is a diagram showing the relationship between a flat cable and contacts of a flat cable connector. 30... Receptacle (pressing side), 31... Insulator main body having contact insertion hole 31a, 32... Center bulkhead, 33... U-shaped pressure contact portion 33
contact with b, 34, 35... strain relief, 36... flat cable, 37...
Receptacle body.

Claims (1)

[Scope of utility model registration request] A central partition is provided on one surface of an approximately rectangular parallelepiped insulator main body along the longitudinal direction, and a plurality of contact insertion holes are formed at equal intervals in the direction in which the central partition extends in each of the insulator main bodies on both sides of the central partition. Two types of protruding ends with different lengths are alternately inserted and fixed into the formed insulator and the contact insertion holes for each row, and the U-shaped pressure welding portions of each of the protruding ends are inserted into the contact insertion holes. a contact that is substantially perpendicular to the central partition wall and bent in the opposite direction to the central partition;
Two flat cables, one end of which can be electrically connected to the insulation displacement part of the contact, and the other end of the flat cables are inserted above the central bulkhead, and the flat cables are connected to each other. In addition, the first strain relief prevents external force applied to the flat cable from being directly applied to the press contact portion of the contact, and the flap near the upper part of the central partition wall and below the first strain relief. and a second strain relief disposed inside the flat cable to maintain a distance between the two flat cables and prevent deformation of the flat cable when the flat cables are press-connected.