JPS5936845Y2 - contact - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a contact suitably used, for example, when forming a common ground structure in a press-fit connector for a multi-core flat cable.

Connect each ground wire inserted between each signal wire of the flat cable to the ground wire press-fit connection contact of the connector, and short-circuit this with the ground printed wiring on the printed board to prevent interference between each signal wire. In this case, the ground wire press-fit connection contacts are usually connected to the printed circuit board, so the same number of ground contacts as the contacts are provided, and the printed board has holes for the ground wires lined up with insertion holes for the signal contacts. This requires the processing of a large number of holes into which individual contacts are inserted and the printed wiring for grounding, which may complicate the wiring and connector structure, leading to a decrease in connection reliability.

The present invention is a connector for terminal connection of a multi-core flat cable having a signal line and a ground wire inserted between each signal line as parallel conductors. A common ground is formed inside the connector by clamping the contact, and one or only a part of the contact for press-fitting the ground wire is connected to the printed circuit board to simplify, rationalize, and improve the reliability of the ground connection structure of the cable terminal. The purpose is to provide contact that can be suitably carried out in cases where the user is trying to do the following.

1 and 2 show examples of the above contact structure,
FIG. 3 and subsequent figures show the common grounding structure of a flat cable connector constructed with the contacts.

The contact 5 has a positive-sized connector 5a for the ground wire 6b at one end, and a clamp calibrated connector 5b for the earth contact 15 at the other end.

A clamp groove 5c for the ground contact 15 is formed between the branch connectors 5b, and a U-shaped groove 5d for clamping the ground bus bar is connected to the bottom of the ground contact clamp groove 5c.

Figure 1 shows a plate-like connector 5b for an earth contact clamp.
and a connector 5 forming a U-shaped groove 5c for the ground bus bar clamp.
This shows the case where e is also used.

Further, FIG. 2 shows a case in which the plate-shaped connectors 5e for earth bus clamping are bent and overlapped from the side surface of the contact, and the U-shaped groove 5d for earth bus clamping is positioned so as to communicate with the bottom of the earth contact clamp groove 5c.

The ground wire press-fit connector 5a, the technique connector 5b for the earth contact clamp, and the calibrated connector 5e for the earth bus clamp are connected vertically with an integral metal structure, and the left and right sides of the connecting plate portion and the plate surface A protrusion 5f is provided for both press-fitting and positioning.

In the case of FIG. 1, a protrusion 5g is provided on the outside of the base of the plate connector 5b for the earth bus clamp/earth contact clamp, and the protrusion 5g is supported on the inner wall surface of the contact insertion hole. The technical connector 5b is provided with an elastic opening action within the contact implantation hole.

The connector 1 consists of a cover block 2 and a contact implant block 3.

The contact mounting block 3 includes a signal line press-fit connection contact 4, a ground line connection press-fit contact 5' that also serves as a clamp for the ground bus, and a ground wire that also serves as the ground bus clamp and the ground contact clamp as explained in FIGS. 1 and 2. and a press-fit connection contact 5.

The multicore flat cable 6 includes a signal line 6a and a ground line 6b inserted between each signal line as parallel conductors.

The contact holes 7 for the signal line and the contact holes 8 for the ground wire are arranged in parallel in a staggered manner.

The cover block 2 has contact insertion holes 9 and 10 corresponding to both the contacts 4 and 5 described above.

The cover block 2 is stacked on the contact insertion block 3 as shown in FIG. Break through the sheath of the multicore flat cable 6 and connect the signal wire 6a with the press-fit connector 4a of the signal wire press-fit connection contact 4, and connect the ground wire 6a with the press-fit connector 4a of the signal wire press-fit connection contact 4
b are connected to each other using the positive connection terminals 5a of the ground wire press-fit connection contacts 5 and 5', respectively.

10 is for positioning and holding the flat cable 6 on the bottom surface of the cover block 2, and for contacting) 4. 5.5' is an intermediate plate that also serves as an alignment guide, and is provided with contact insertion holes corresponding to the contact insertion holes 9 and 10 of the cover block 2.

Inside the contact installation block, there is a through groove 1 for inserting the earth bus bar, which crosses the contact installation hole 8 for each ground wire, that is, press-fits the earth wire, and crosses the connection contacts 5, 5.
1 is provided at the bottom of the contact insertion hole 8, and a common ground bus bar 12 is disposed within the communication groove 11.

Each of the ground wire press-fit connection contacts 5' is equipped with the same ground wire press-fit connector 5a as the contact 5, and also has a branch-like connector 5e for clamping the common earth bus bar 12 in the contact insertion hole 8, and has a wedge-shaped The common ground bus bar 12 is clamped by a U-shaped groove 5d for clamping the ground bus bar, which is equivalent to the contact 5 formed between the connectors 50,
At the same time, contact 5 has a U-shaped groove 5d for clamping the ground bus bar.
By clamping the ground bus 12 at the connector, a common ground structure for each ground wire 6b is formed inside the connector while ensuring good terminal connection of the ground wires 6b.

The common ground bus bar 12 is held in each U-shaped groove 5d for clamping the ground bus bar 12 by a support wall 13 formed at the bottom of each contact insertion hole 8 and maintained in a clamped state.

The above ground bus bar support wall, the above contacts 5 on both sides of 130
A contact piece insertion groove 8b is provided which allows the insertion of the connector 5e, and a contact piece insertion groove 8b is provided which allows the insertion of the contact 50-plate connector 5b.

Therefore, by implanting the contacts 5, 5', the branch contact piece 5e inevitably clamps the common ground bus 12 in the U-shaped groove 5d for clamping the ground bus.

The common ground bus bar 12 includes not only a round wire material as shown in the figure, but also a deformed wire material and a rectangular plate material.

As described above, the ground wire 6b of the multicore flat cable 6
By press-fitting and connecting the signal wire 6a to the ground wire press-fit connection contacts 5 and 5 of the connector 1 and the signal wire press-fit connection contact 4, a common case structure for the ground wire 6b inside the connector, that is, a ground wire press-fit connection contact is created. 5 common ground structures can be easily and reliably formed.

Such a common grounding structure is formed inside the connector, and, for example, as shown in the figure, contacts 5 for press-fitting the grounding wire are arranged at both ends of the connector, and the grounding contact 15 is attached to the plate-shaped contact piece 5b for grounding contact clamping of the contact 5. If the ground contact 15 is clamped and the other end of the ground contact 15 is inserted into the hole where the ground wiring is provided on the printed board, all the ground wires 6b, that is, all the ground wires are press-fitted contacts) 5.5
' can be grounded.

It is sufficient that the printed board has at least a hole for receiving the ground contact, and the number of connection points with the printed board is minimal, and electrical connection between all the ground wire press-fit connection contacts and the printed board hole is unnecessary. , does not complicate printed circuit board wiring, and does not cause a decrease in the reliability of electrical connections.

As described above, the contact 5 is equipped with a ground wire press-fit connector at one end, a branch-like connector for a ground contact clamp at the other end, and a ground wire at the bottom of the earth contact clamp groove formed between the temporary connectors. By using a structure in which the U-shaped groove for wire clamping is connected, it is possible to connect to the ground bus bar 12 with a single contact, and also connect to the ground contact 15, and connect the printed board via the ground contact 15. A ground connection is possible.

Reference numeral 14 denotes a plug used to connect the grounding contact 5 and the signal contact 4 to the printed circuit board, and the plug has a signal contact 17 consisting of a number of pin terminals corresponding to the number of the signal contacts 4. , the number of earthing contacts 1 corresponding to the arrangement of the earthing contacts 5
5, and the terminal 16.18 has the plug 14 protruding from the other end of the grounding contact 15 and the signal contact 17.
By inserting it into the printed circuit board using the above, the connection between each signal line 6a and the printed circuit board wiring can be achieved, and at the same time, grounding can be achieved by connecting the minimum necessary printed circuit board with the grounding contacts 5 and 15. becomes possible.

In the illustrated embodiment, contacts 5 are arranged at both ends of the grounding contact row, but a single contact 5 may be used, or if each signal line constitutes a circuit group of two or more systems, it may be provided for each circuit group. The arrangement position and number can be changed depending on the implementation.

[Brief explanation of the drawing]

Figures 1 and 2 are perspective views showing an example of the contact structure of the present invention, Figures 3 and after show the common grounding structure of a connector configured with the above-mentioned contacts, and Figure 3 shows a flat cable connector according to the same embodiment. Fig. 4 is an exploded perspective view, Fig. 5 is an enlarged perspective view showing the insertion and installation of the common ground bus bar into the contact-embedded block, with a cross section of the same block, and Fig. 6 is the same contact-embedded block. FIG. 7 is an enlarged perspective view of the same block showing a state in which the contacts are implanted in the block, and FIG. 1... Connector, 2... Cover block, 3... Connector installation block, 4...
...Contact for signal line press-fit connection, 5...Contact for press-fit connection of ground wire, 6...Multi-core flat cable, 12...Common ground bus bar, 5a...
...Earth wire press-fit connector, 5b...Plate contact piece for earth contact clamp, 5c...Earth contact clamp groove, 5d...For earth bus bar clamp. U-shaped groove, 5e...Technical contact piece for earth busbar clamp.

Claims (1)

[Scope of utility model registration request] A ground wire press-fit connector is provided at one end, and a ground contact clamp connector is provided at the other end, and a U-shaped groove for ground wire clamp is provided at the bottom of the earth contact clamp groove formed between the connectors. A contact made up of a combination of connections.