JPH0429501Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to an electrical connector that can connect single-layer or multi-layer cables.

Conventional technology Conventionally, flat cable electrical connectors have single-layer flat cables in which one or two rows of contacts are arranged on the connector body, and the cable wiring member also has a pressure-welding part receiving groove. One or two rows of contacts corresponded to the contacts on the connector body. Furthermore, flat cables with two layers are completely different from single-layer cables, such as those disclosed in Japanese Patent Laid-Open No. 164282/1982.

Problems that the invention aims to solve In these conventional electrical connectors for flat cables, the structure of the connector body is completely different between single-layer flat cables and multi-layer flat cables. Therefore, for example, with a single-layer flat cable connector, the mating connector can only be mated with a compatible connector, and with a multi-layer flat cable connector, the mating connector can only be mated with a compatible connector. Ta. Therefore, the size, height, etc. of the former and latter connectors are extremely different, and the contacts, etc., are also not common and many types must be prepared, resulting in a large number of parts and high costs. was. Furthermore, when connecting to a mating connector, only a dedicated connector is connected, which is inconvenient for the user because flexible connection cannot be made.

SUMMARY OF THE INVENTION An object of the present invention is to provide an electrical connector that can connect single-layer or multi-layer cables in order to solve these conventional problems.

Means for Solving the Problems The electrical connector according to the present invention, which can connect single-layer or multi-layer cables, includes a connector body in which contacts can be arranged in at least three rows with insulation displacement connection parts protruding, and the connector At least three rows of insulation displacement terminal receiving grooves for receiving insulation displacement terminals of the contacts protruding from the connector body are provided on the coupling surface on the same level with the main body, and the insulation displacement terminals of some of the rows are provided. A first set of cables to be connected is arranged on the connection part receiving groove from the side edge, and the insulation displacement connection part of the remaining rows of the rows is received from the surface opposite to the connection surface. A first cable wiring member having a cable insertion through hole for passing a second set of cables to be connected onto the groove, and a contact protruding from the connector body that is press-fitted to a joining surface on the same level as the connector body. It has at least two rows of pressure welding connection receiving grooves for receiving the connection portions, and a set of cables to be connected from the side edge is arranged onto the at least two rows of pressure welding connection receiving grooves. and a second cable wiring member,
When the connector body is provided with contacts in the at least three rows and the first cable wiring member is used, the first set of contacts is disposed on the insulation displacement terminal receiving grooves of some of the rows. the connector main body is connected to the first cable wiring member in a state where the cables of the second set are arranged and the second set of cables are arranged in the insulation displacement terminal receiving grooves of the remaining rows of the rows. By doing so, at least the first set of cables and the second set of cables can be connected by pressure welding at the coupling surface of the same level, and can be pulled out in two layers, and the contactor can be connected to the connector main body by connecting the at least two sets of cables. When the cables are arranged in rows and the second cable wiring member is used, the set of cables can be pressure-connected at the coupling surface on the same level and can be pulled out in a single layer.

Embodiments Next, the present invention will be described in more detail with regard to embodiments of the present invention based on the accompanying drawings.

FIG. 1 is an exploded part arrangement showing a combination of component parts when an electrical connector as an embodiment of the present invention is used with two sets of cables connected at the same level and pulled out in two layers. FIG.

This electrical connector in this combination of component parts includes a connector main body 20 in which insulation displacement type contacts 10 are arranged in three rows, a cable wiring member 30 as a first cable wiring member, and a pair of fasteners 4.
0 and a cable holding member 50.

FIG. 2 is a top view of the connector main body 20, and as clearly shown in FIG. are arranged in three rows so as to protrude, and the first row of insulation displacement connection portions 11A and the second row of insulation displacement connection portions 11B
The array pitches are the same and are shifted from each other by 1/2 pitch. 1st row insulation displacement connection part 11A
The combined arrangement pitch of the second row of insulation displacement connection portions 11B is made equal to the arrangement pitch of the cable, such as a flat cable, to be connected thereto. The arrangement pitch of the third row of insulation displacement connection parts 11C is made equal to the arrangement pitch of the insulation displacement connection parts 11B of the second row.

FIG. 3 is a reversed front view showing a state in which the fasteners 40 are inserted and fixed into the fastener grooves 31 on both sides of the cable wiring member 30. As clearly shown in FIG. 3, the stopper 40 is fixed to the cable wiring member 30 by the elastic locking tongue 41 being coupled to the side wall of the cable wiring member 30, and at this time, Stop tongue piece 4 near the tip
2 is adapted to come out ahead of the stopper fitting groove 31. When the connector main body 20 is coupled to the cable wiring member 30 in the state shown in FIG. (see figure) to maintain the connection between the connector body 20 and the cable wiring member 30.

FIG. 4 is a cross-sectional view showing the state of this electrical connector before connection. As best shown in FIG. 4, the insulating housing 21 of the connector body 20
The contactor 10 incorporated in the 10 is made up of both spring projections 12 provided on both sides and press-fitting parts 13 and 14, which improves the reliability of holding the contactor compared to conventional press-fitting alone. It is also
Efforts are also being made to improve the workability of assembling contacts. Moreover, each row of pressure welding connection portions 11A, 11B and 1
1C are placed on the same level. Each contact 10 has a contact portion 15 on the opposite side of the pressure welding connection portion for contacting a mating contact.

The cable routing member 30 is placed in an inverted configuration on a suitable wiring platform 60, and a first set of cables to be wired to the first and second rows of contacts is shown in FIG. , for example, flat cable 7
A second set of cables, for example, one end of a single wire cable 80 to be connected to the zero and third rows of contacts, is routed to this cable wiring member 30. As clearly shown in FIG. 4, the coupling surface 32 of the cable wiring member 30 is formed at the same level, and includes the insulation displacement connection portions 11A of the first row of contacts of the connector body 20, Pressure connection portion receiving grooves 33A, 33B, and 33C are formed in one corresponding to each of the pressure connection portions 11B of the contacts in the second row and the pressure connection portions 11C of the contacts in the third row. One end of the flat cable 70 as the first set of cables is connected to the coupling surface by aligning the arrangement pitch of each core wire with the arrangement pitch of the insulation displacement terminal receiving grooves 33A and 33B of the first and second rows. 32. One end of the single linear cable 80 as the second set of cables passes through the cable insertion through hole 34 formed in the longitudinal direction at the center of the cable wiring member 30, and passes through the third cable through hole 34.
It is delivered onto the coupling surface 32 by passing over the column's press-contact connection receiving groove 33C. At this time, the ends of each single linear cable 80 are held by cable holding protrusions 35 formed on both sides of the insulation displacement connection part receiving groove 33C. The state in which the flat cable 70 and the single linear cable 80 are wired to the cable wiring member 30 in this manner is shown in a perspective view in FIG.

By connecting the connector main body 20 to the cable wiring member 30 from the state shown in FIG. 4, each cable 70 and 80 is Batch connection can be performed in one step. At this time, the retaining tongue piece 42 of the retainer 40 engages with the retaining groove 22 of the insulating housing 21 of the connector body 20, so that the connected state between the connector body 20 and the cable wiring member 30 is maintained. This connector body 2
6 shows a perspective view of the connected state of the cable wiring member 30, the cable wiring member 30, and each of the cables 70 and 80, which has been reversed again.

After the flat cable 70 and the single wire cable 80 are wrapped around the cable wiring member 30 in the state shown in FIG. ,
By connecting the cable holding member 50 to the cable wiring member 30 so as to hold the overlapping flat cable 70 and single wire cable 80 between the opposite side surface 36, the cable to this electrical connector is connected. Complete the wiring. The cable holding member 50 is preferably made of a metal material, and elastic pawls 51 are formed on both sides. This retaining claw 51 is connected to this cable holding member 5.
0 to the cable wiring member 30, the retaining lug 43 provided on the upper outer surface of the retainer 40 combined with the cable wiring member 30
The cable wiring member 30 and the cable holding member 50 are elastically engaged with each other to maintain the connected state between the cable wiring member 30 and the cable holding member 50. FIG. 7 shows a perspective view of such an electrical connector in a completed state. Furthermore, FIG. 8 is an enlarged cross-sectional view of the electrical connector in the state shown in FIG. 7, and FIG. 9 is an enlarged longitudinal sectional view of the electrical connector in the state shown in FIG. 7.

The above is a case where two sets of cables are connected in two layers to the electrical connector of the present invention.Next, we will discuss other usage conditions of the electrical connector of this embodiment, for example
The case where only one set of cables is connected will be explained.

That is, in the electrical connector of the present invention,
The pressure welding connections to all the contacts are made at the same level, and the combined arrangement pitch of the contacts in the first row and the contacts in the third row is made equal to the arrangement pitch of the core wires of a flat cable, etc. Therefore, the following single-layer cable connection can be performed using the contacts in the first row and the contacts in the third row. FIG. 10 is a perspective view showing a combination of components when the electrical connector of the above-described embodiment is used with a set of cables connected at the same level and pulled out in a single layer. As shown in FIG. 10, the insulation displacement connecting portions 11A and 11 of the contacts are attached to the first and third rows of the insulating housing 21 of the connector body 20.
Each contact is arranged so that C protrudes. Furthermore, FIG. 10 shows a cable wiring member 30' as a second cable wiring member that is assembled with such a connector main body 20, and a stopper 4.
0. This second cable wiring member 30' does not have a cable insertion through hole or a cable holding protrusion, and has three insulation displacement terminal receiving grooves.
The structure may be the same as that of the first cable wiring member 30 described above, except that it is formed in two rows instead of a row, and the stopper 40 may be the same as that in the embodiment described above.

FIG. 11 is a cross-sectional view showing the state before connection when such a combination of electrical connector components is used. As clearly shown in this figure, the cable wiring member 30' is properly connected. One end of a flat cable 70' to be connected to the first and third rows of contacts is placed inverted on a wiring board 60', and a connector is attached to this cable wiring member 30'. Pressure connection portion 11A of the first row of contacts and insulation displacement connection portion 1 of the third row of contacts of the main body 20
Pressure connection portion receiving grooves 33A' and 33C' are formed at positions corresponding to each of the terminals 1C. That is, one end of the flat cable 70' is arranged so that the arrangement pitch of each core wire is aligned with the arrangement pitch of the insulation displacement terminals receiving grooves 33A' and 33C' of the first and third rows, and the insulation displacement terminals are connected to each other. The receiving grooves 33A' and 33C' are traversed and delivered onto the coupling surface 32'.

From the state shown in FIG. 11, by connecting the connector body 20 to the cable wiring member 30', the cable 70' can be connected to the contacts in the first and third rows. .
This state is shown in FIG. 12 as an enlarged cross-sectional view. In this way, using 3 sets of electrical connectors, 2
By connecting to the column arrangement, cable wiring as shown in FIG. 13 can be performed.

Effects of the invention Since the electrical connector of the invention has the above-described configuration, the following effects can be obtained.

(1) By selecting and using the electrical connector components, it is possible to easily connect one set of cables or two sets of cables, so it is versatile and adaptable to various situations. Since the same connector body and contacts can be used for both single-layer cables and multi-layer cables, parts can be shared and costs can be reduced.

(2) The overall height and size of the connector is almost the same whether it is used for a single-layer cable or a multi-layer cable.
The mating connector can be connected to either a single-layer cable connector or a multi-layer cable connector depending on the usage conditions, increasing convenience.

[Brief explanation of the drawing]

FIG. 1 is an exploded part arrangement showing a combination of component parts when an electrical connector as an embodiment of the present invention is used with two sets of cables connected at the same level and pulled out in two layers. Perspective view, 2nd
The figures are a top view of the connector main body of the electrical connector of Fig. 1, Fig. 3 is a front view showing the combination state of the first cable wiring member and the stopper of the electrical connector of Fig. 1, and Fig. 4. 1 is a cross-sectional view showing the state of the electrical connector in FIG. 1 before connection, FIG. 5 is a perspective view showing the state in which the cable is wired to the first cable wiring member, and FIG. 6 is the connector main body. FIG. 7 is a perspective view showing a state in which the electrical connector of FIG. 1 has been connected, and FIG.
An enlarged cross-sectional view of the electrical connector as shown,
Fig. 9 is an enlarged vertical cross-sectional view of the electrical connector in the state shown in Fig. 7, and Fig. 10 shows the electrical connector of the embodiment shown in Fig. 1 in a single layer by connecting one set of cables at the same level. FIG. 11 is a perspective view showing the combination of component parts when used by pulling it out.
FIG. 10 is a cross-sectional view showing the state of the electrical connector before connection, FIG. 12 is an enlarged cross-sectional view showing the state of connection of the electrical connector in FIG. 10, and FIG.
FIG. 2 is a perspective view showing an example of cable wiring using the electrical connector shown in FIG. 10... Contact, 11A, 11B, 11C...
Pressure connection part, 20...Connector body, 30...First cable wiring member, 30'...Second cable wiring member, 32...Joining surface, 33A, 33B,
33C... Pressure connection part receiving groove, 34... Cable insertion through hole, 40... Stopper, 50... Cable holding member, 70, 70'... Flat cable, 80... Single linear cable.

Claims (1)

[Scope of utility model registration request] a connector body in which contacts can be arranged in at least three rows so that the insulation displacement connection portions protrude; and at least three rows that receive the insulation displacement connection portions of the contacts protruding from the connector body on a coupling surface on the same level as the connector body; a first wire to be connected from a side edge onto the insulation displacement connection receiving groove of some of the rows;
A second set of cables is disposed therein, and the second set of cables is to be connected onto the insulation displacement terminal receiving groove of the remaining rows from the surface opposite to the coupling surface.
a first cable wiring member having a cable insertion through hole for passing a set of cables therethrough; and at least two rows for receiving insulation displacement connection portions of contacts protruding from the connector body on a joining surface on the same level as the connector body. a second cable wiring member having a pressure welding connection receiving groove disposed in the at least two rows of the pressure welding connection receiving groove, and disposing a set of cables to be connected from the side edge onto the at least two rows of the pressure welding connection receiving groove; and in the case where contacts are arranged in the at least three rows on the connector main body and the first cable wiring member is used, insulation displacement terminal receiving portions of some of the rows are provided. With the first set of cables disposed on the groove and the second set of cables disposed in the insulation displacement terminal receiving groove of the remaining rows, with respect to the first cable wiring member. at least a first set of cables and a second set of cables by coupling the connector bodies with each other.
A set of cables can be connected by pressure welding at the coupling surface of the same level, and can be pulled out in two layers,
When the contacts are arranged in the at least two rows on the connector body and the second cable wiring member is used, the one set of cables can be connected by pressure welding at the coupling surface on the same level, and the cables are connected in a single layer. An electrical connector that can connect single-layer or multi-layer cables, and is characterized by being able to be pulled out.