JPH059820Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a coaxial flat ribbon cable connector.

[Prior Art] Flat ribbon cables are commonly used to connect printed circuit boards in computers and their peripheral equipment. Furthermore, in order to minimize crosstalk noise between the conductors of the flat cable or external noise, a coaxial flat ribbon cable incorporating a ground conductor made of a core wire and a conductor, or a drain wire is used.

By the way, in conventional connectors for connecting this type of flat ribbon cable, those equipped with a knitted ground conductor were disclosed in Japanese Utility Model Publication 57-
As disclosed in Japanese Patent No. 56461, there is a technique in which a knitted ground conductor is soldered to a terminal board and simultaneously soldered to a ground contact.

In this technique, the work of stripping the cable and soldering it to the terminal board is extremely tedious.

In addition, regarding a coaxial flat ribbon cable equipped with a drain wire, Japanese Utility Model Publication No. 1-22225 discloses that after the signal wire and the drain wire are differentiated and arranged alternately according to the guide groove of the guide block, The invention discloses an idea for connecting wires by press-contacting each pressure-welding connection portion.

In this latter technique, the number of signal terminal lines and ground terminal lines are the same, the number of signal terminal lines is small, and the ground pattern cannot be freely selected.

[Purpose of the invention] Considering these problems of the conventional technology, the main purpose of this invention is to facilitate the assembly work of a coaxial flat ribbon cable equipped with a ground conductor or drain wire and a connector, that is, the harness work. The goal is to provide a connector that can be used to

Another object of this invention is to provide a connector that allows any ground pattern to be selected for the above-mentioned coaxial flat ribbon cable.

[Structure of the invention] As shown in FIG. 1, the coaxial flat ribbon cable connector (hereinafter simply referred to as "connector") 10 of this invention is a coaxial flat ribbon cable (hereinafter referred to as "cable") 100 or 110.
It is a connector that connects to the free end of the

In particular, as shown in FIG.
A ground conductor 104 is formed by knitting conductors around the outer periphery of the ground conductor 104, and an outer covering C is formed into a flat ribbon shape.

The cable 110 also has an adjacent sheath S.
A separate drain wire 10 between core wires 102 having
This is a ribbon cable consisting of 6.

According to this invention, as shown in FIGS. 1 and 4, the connector 10 includes a housing portion 12 and a block structure 14 attached to the housing portion 12.
, a hood part 16 that accommodates the block structure 14 therein and is fixed to the housing part 12, and a cable clamp band 18.

As shown in FIGS. 1 and 4, the housing portion 12 is a block made of an insulator and provided with hollow openings 20 and 21 in two stages, upper and lower. Contact members 22 are attached to these hollow openings 20 and 21.

The contact member 22 is mounted in the hollow opening 20 or 21 of the housing part 12, and its front end is provided with at least two resilient contact arms 24 for inserting pin contacts (not shown in the drawings). The rear end is formed in the housing part 1.
2 and bent at least 90 degrees with respect to the longitudinal axis of the contact arm 24;
Slot end 2 for pressure contacting 02 or other conductor
It is set to 6.

Further, as shown in FIG. 5, the housing part 12 has both side walls extending from the rear and fit into the sides of the groove 28 of the block structure 14 in order to attach the block structure 14 inside thereof. Projection 30
is formed.

Block structure 14 is made of an insulating material and is attached to housing section 12 and housed within hood section 16, as described above. The front end of the block structure 14 has a laterally extending groove 28 in its center.
is formed, and the protrusion 30 of the side wall of the housing part 12 is inserted into the end of the groove 28, as described above, to assemble both parts.

Further, a pair of first ground pressure contact plates 32, 32 are inserted into this groove 28 with their backs facing each other. This ground pressure contact plate 32 has a flat portion 34 inserted into the groove 28 and a flat portion 34 at its front edge.
It is bent 90 degrees from 4, and there is a blank space 36 in the center.
It is composed of a plurality of rows of locking end portions 40 having U-shaped arms 38 so as to form a U-shaped arm 38.

The central voids 36 of these mutually adjacent locking ends 40 are alternately formed into extensions 42 and the void portions are closed.

As shown in FIG. 5, cables are provided on both upper and lower surfaces of the block structure 14. A guide groove 44 is formed. These cables. The center line of the guide groove 44 is aligned with the locking end 40 of the first gland pressure contact plate 32.
It is arranged to be aligned with the center line passing through the central cavity 36 of. The guide groove 44 then serves as a guide for the free end of each coated core wire 102 of the flat ribbon cable 100 to be connected to the contact member 22 of the connector 10.

A second ground pressure contact plate 46 is used in cooperation with the first ground pressure contact plate 32. As shown in FIG. 6, the second ground pressure contact plate 46 has a flat portion 48, and one edge thereof is bent at 90 degrees from the flat portion 48, and furthermore, a space 50 is formed in the center. A pair of U-shaped arms 52,5
2. Multiple rows of locking ends 54 are provided. The portions between these mutually adjacent locking ends 54 are alternately formed into locking pieces 56 that are retracted inward by the thickness of the pressure contact plate 46 and locking pieces 58 that project outward.

The other edge of the flat portion 48 of the second ground pressure contact plate 46 comes into contact with the slot end 26 of the contact member 22 when the pressure contact plate 46 is assembled into the hood portion 16 as shown in FIG. It is formed into a connecting piece 60 that can be used. This contact piece 60
is exclusively the ground conductor 10 of the cable 100
4 or the drain line 106 of the cable 110 is electrically connected to the contact 22. Therefore, the contact piece 60 for other than that purpose, that is, the portion of the contact piece 60 that connects the core wire 102 to the contact 22, is cut and removed.

The hood portion 16 includes a pair of spaced apart cover plates 62 surrounding the block structure 14 and coupled to the housing portion 12, and a side wall 6 coupling the cover plates 62.
4 and a base 68 having an elongated opening 66 extending longitudinally from the side wall 64 and into which a flat ribbon cable 100 or 110 is inserted. This base 68 is provided with a groove 70 on the side wall, and a ribbon cable 100 or 1
10 into the opening 66 of the base 68, the cable clamp band 18 is attached to the base 68 to secure the cable 100 or 110 in place.

Now, in the structure described above, first, the procedure for connecting the coaxial flat ribbon cable 100 consisting of the signal core wire 102 and the coaxially organized ground wire 104 to the connector 10 of this invention will be explained.

First, the contact members 22 are respectively attached to the openings 20 and 21 of the housing portion 12 constituting the connector 10.

Next, the edges of the flat portions 34 of the two first ground pressure contact plates 32 are inserted into the groove 28 of the block structure 14 with their backs facing each other.

The groove portion of the side surface of the groove 28 of the block structure 14 assembled in this way is inserted into the protrusion 30 formed inside the extension of the side wall of the housing portion 12 to couple them together.

The next step is to remove the outer sheath C and part of the braided ground conductor 104 on the side of the coaxial flat ribbon cable 100 that connects to the connector 10. Part of this coating is removed and the coating sheath S
The core wire 102 is exposed, and the core wire 1
The ground conductors 104 are arranged at a distance from each other.
Coaxial flat ribbon cable 10 with exposed
0 to the opening 66 of the base 68 of the hood portion 16.
, and pull it out from the other end of the hood part 16 to distribute and arrange each of the core wires 102 of the cable 100 into the cable guide grooves 44 formed on both sides of the block structure 14. Then, the end of the core wire is inserted into the pressure welding slot 26 of the contact member 22 mounted on the housing part 12 to make an electrical connection.

Therefore, the locking end portion 54 of the second gland pressure contact plate 46 is aligned with the locking end portion 40 of the first gland pressure contact plate 32, and the first ground pressure contact plate 3
The second gland pressure contact plate 46 is pressed so that the U-shaped arm 38 of No. 4 and the U-shaped arm 52 of the second ground pressure contact plate 46 are aligned. By this pressing operation, the outer coating C of the coaxial cable 100 is
The respective arms 38,
The inner surface of 52 bites into the knitted ground conductor 1.
04 (left side in Figure 7 and Figure 8).

When the above operations are completed, the hood part 16 is pulled toward the free end of the cable 100, and the front end of the cover plate 62 is connected to the housing part 12, thereby completing the installation.

A case will be described in which a coaxial flat ribbon cable 110 provided with a drain wire 106 is connected to the connector 10.

The operating procedure is coaxial flat ribbon cable 1
The connection is exactly the same as 00, and there is nothing to change.
As a result of this operation, as shown in the right side of FIG. 7 and FIG.
Pass through the center of the space 36 and 50 between 2 and 52,
Drain wire 106 extending parallel to core wire 102
is pressed against the U-shaped arms 38 and 52 in a biting manner.

[Operations and Effects of the Invention] The coaxial flat ribbon cable connector of this invention has the structure detailed above and the operation of attaching the cable to the connector, as is obvious from the structure as described above and the operation of attaching the cable to the connector. It is much easier to connect a coaxial flat ribbon with a flat ribbon than other conventional ones.

Further, since the position where the ground line or drain line is connected to the contact of the connector can be selected, an arbitrary ground pattern can be configured.

[Brief explanation of the drawing]

Fig. 1 is a schematic perspective view showing a state in which a cable is connected to the coaxial flat ribbon cable connector of this invention, and Fig. 2 is a partially cutaway plan view showing a coaxial flat ribbon cable having a knitted ground wire. , Fig. 3 is a schematic perspective view of a coaxial flat ribbon cable equipped with a drain wire, Fig. 4 is a sectional view taken along the line - in Fig. 1 in the direction of the arrow, and Fig. 5 is an exploded view of the connector of this invention. A schematic perspective view of the assembly; Fig. 6 is a partial perspective view illustrating the assembly of the first and second pressure contact plates for ground; Fig. 7 shows a cable connected state with a ground wire on the left and a drain wire on the right. FIG. 6 is a schematic perspective view corresponding to FIG. 6, FIG. 8 is a schematic front view showing a state in which a cable having a ground wire is connected between the first and second ground press plates, and FIG. 9 is a cable having a drain wire. . Main symbols in the drawing, 10... Connector, 12...
Housing portion, 14...Block structure, 16...
...Hood section, 18...Clamp band, 20,
21...Hollow opening, 24...Elastic contact arm, 26...
...Slot end, 28...Central groove, 30...Protrusion, 32...First gland pressure contact plate, 34...
32 flat parts, 36...32 central voids, 38...
...U-shaped arm, 40...32 locking end, 44...
...Cable guide groove, 46...Second pressure contact plate for gland, 48...46 flat surface, 50...46 central void, 52...46 U-shaped arm, 54...
46 locking end, 100, 110...cable,
102... Core wire, 104... Ground conductor, 1
06...Drain line.

Claims (1)

[Claims for Utility Model Registration] 1. A plurality of coated core wires 102 and the core wire 1
In a connector 10 connected to the free end of a coaxial flat ribbon cable 100; 110, which is provided with a conductor 104 arranged in parallel with a
A housing part 12 made of an insulator and having a plurality of hollow openings 20 and 21 arranged in stages, and a side wall of the housing part 12 extending rearward, and a block structure 14 made of an insulator inside thereof.
It has an elastic contact arm 24 attached to each of the openings 20;
a slot end 2 that stands upright from the slot and presses the core wire;
6, and a central groove 28 is provided at the front end of the block structure 14 into which the protrusion 30 of the housing part 12 can be inserted; Multiple rows of cable guide grooves 4 capable of guiding wires 102
4, and a pair of first pressure contact plates 32 for the ground inserted back to back into the central groove 28 of the block structure 14, the first pressure contact plates 22 being inserted into the center groove 28. A flat part 34 to be inserted and a U that stands upright from the flat part 34 and forms a cavity 36 in the center.
A locking end portion 40 having a letter-shaped arm 38 is provided, and a flat portion 48 and one end of the flat portion 48 are disposed opposite to the first ground pressure contact plate 32. A central cavity 36 of the first press plate stands upright from the edge.
and a locking end 54 having a central cavity 50 aligned with the locking end 40 and said planar portion 48 .
a connecting piece 60 extending from the other edge of the contact member 22 and contacting the slot end 26 of the contact member 22;
a second press-contact plate 46 comprising: a second press-contact plate 46 that accommodates the locking ends 40;
a hood portion 16 having an opening 66 for inserting the ribbon cable 10 into the hood portion 16;
A coaxial flat ribbon cable connector consisting of a cable clamp band 18 for tightening the cable. 2 The flat ribbon cable 100; 110
Ground conductor 10 configured by organizing conductors of
4. The connector according to claim 1. 3 The flat ribbon cable 100; 110
2. The connector according to claim 1, wherein the conductor is a drain wire 106.