JPH0365628B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an electrical connector for a multi-core flat cable.

BACKGROUND OF THE INVENTION Recent electronic devices are becoming lighter, thinner, and smaller, and this requires high-density packaging. Therefore, the electrical connectors used in these electronic devices are required to be compact and have contacts arranged as densely as possible, and the cables used are also multi-core flat cables that have a large number of conductors arranged in a dense manner. etc. are being demanded. Conventionally, in order to meet such demands, 1.27mm
In contrast to multi-core flat cables in which the core wires are arranged at a pitch, a multi-core flat cable in which the core wires are arranged at a pitch of 0.635 mm has been developed. and,
As a connector for connecting such ultra-small 0.635mm pitch multi-core flat cables,
Electrical connectors for multi-core flat cables of the insulation displacement type have been developed as disclosed in Japanese Patent Publication No. 56-37667 and Japanese Patent Publication No. 57-53629.

Problems to be Solved by the Invention In these known insulation displacement type electrical connectors, the pitch of the multi-core flat cable to be connected is
0.635mm, half the pitch of 1.27mm of the conventionally most commonly used multi-core flat cable.
The arrangement pitch of the contacts is 0.635 mm, which is half that of the conventional one, to match the cable arrangement pitch of the cable cores, so the overall size is also equal to the same number of fibers and contacts. However, the following drawbacks are becoming a problem.

(1) This electrical connector had to be processed with extremely high precision to ensure that the core wires did not align well with the contacts, making it even more expensive.

(2) Since the contacts of this connector must be made small and have a complicated shape, it is extremely difficult to process, which also causes the connector to be expensive.

In order to solve these problems, the present applicant has provided an electrical connector in which multi-core flat cables are connected by pressure contact in a plurality of layers in Japanese Patent Laid-Open No. 167285/1985. However, this JP-A-60-
The electrical connector for multi-core flat cables disclosed in Publication No. 167285 attempts to increase the density of the cable by using multiple layers, but the multi-core flat cables used therein are conventionally used. Due to the large pitch of 1.27mm, it cannot meet the demands for higher density packaging and miniaturization. In other words, although there is a demand for electrical connectors for multi-core flat cables with a pitch of 0.635mm, which is half the pitch of the conventionally used 1.27mm pitch, we have developed a connector with high reliability that can meet the demand. There was a demand for an electrical connector that was inexpensive and could be mass-produced.

An object of the present invention is to provide an electrical connector for a multi-core flat cable that can meet the above-mentioned requirements.

Means for Solving the Problems An electrical connector for a multi-core flat cable according to one feature of the present invention includes a contact portion for contacting a contact portion of a contact of a mating connector and a contact portion of a multi-core flat cable to be connected. A plurality of contacts having pressure welding parts for connecting core wires, an insulating housing for arranging and holding the contacts with the pressure welding parts protruding upward, and an end of the multicore flat cable. and a cable wiring member that is connected to the upper part of the insulating housing, and the contactor has a cable wiring member that is connected to the upper part of the insulating housing. They are arranged in rows, and the press-contact parts in each row are arranged in a staggered arrangement with an array pitch equal to twice the core arrangement pitch of the multi-core flat cable, and the positions of the press-contact parts between each row are as follows. , are shifted from each other by the wire arrangement pitch, and the contact portions are arranged in two rows on the left and right in a straight line, and the plurality of contacts are of two types, one of which In this type of contact, the pressure contact part and the contact part are in the same plane as the plate surface of the contact, and the vertical center of the pressure contact part and the vertical center of the contact part are along the plate surface. Therefore, the contacts of the other type are shifted by a distance equal to the fiber arrangement pitch of the multi-core flat cable, and the insulation displacement part and the contact part of the other type of contact are in different planes parallel to the plate surface of the contact. The vertical center of the pressure welding part and the vertical center of the contact part are offset along the plate surface of the contact by a distance equal to the fiber arrangement pitch of the multi-core flat cable. , the inner pressure contact portions of the staggered pressure contact portions in each row are provided by the other type of contact, and the outer pressure contact portions of the staggered pressure contact portions in each row are provided. provided by said one type of contact;
The cable wiring member has a lower surface coupled to the upper part of the insulating housing, and extends from the left and right following the arrangement holding groove, and arranges each core wire distributed to the left and right of the terminal of the multi-core flat cable. and a pressure welding part receiving groove for receiving the tip of the pressure welding part of each of the contacts protruding from the upper part of the insulating housing. When the insulating housing and the cable wiring member are coupled with the insulating housing and the cable wiring member with the core wires held in the arrangement holding grooves and distributed to the left and right being arranged in the respective core wire arrangement grooves, each of the core wires is arranged in the respective core wire arrangement grooves. The wire is press-connected to the press-contact portion of the corresponding contact.

Further, an electrical connector for a multi-core flat cable according to another feature of the present invention includes a contact portion for contacting a contact portion of a contact of a mating connector and a contact portion for connecting a core wire of a multi-core flat cable to be connected. a plurality of contacts having press-contact parts; an insulating housing for arranging and holding the contacts with the press-contact parts protruding upward; and a housing for arranging and holding the terminal parts of the multi-core flat cable. a cable wiring member having a holding groove and coupled to an upper part of the insulating housing;
In the insulating housing, at least the pressure contact parts are arranged in two rows on the left and right, and the pressure contact parts in each row are arranged in a staggered arrangement and at an arrangement pitch equal to twice the fiber arrangement pitch of the multi-core flat cable. The position of the pressure contact between each row is
They are shifted from each other by the wire arrangement pitch, and the contact portions are arranged in a straight line in one row, and the plurality of contacts are of two types, and one type of contact The surface of the contact portion and the surface of the pressure contact portion are perpendicular to each other, and the vertical center of the contact portion and the vertical center of the pressure contact portion are located at the first point along the surface of the contact portion. For the other type of contact, the plane of its contact part and the plane of its insulation displacement part are perpendicular, and the longitudinal center of its contact part and the longitudinal center of its insulation displacement part are separated by a predetermined distance. The center is a second predetermined distance that is larger than the first predetermined distance along the surface of the contact portion, and is an inner press contact of the staggered press contact portions in each row. portion is provided by the one type of contactor, an outer pressure contact portion of the staggered arrangement pressure contact portions in each row is provided by the other type of contactor, and the Cable wiring members are
A fiber arrangement groove extending left and right following the arrangement holding groove on the lower surface coupled to the upper part of the insulating housing, and for arranging each of the fibers distributed to the left and right of the terminal of the multi-core flat cable. and a press-contact receiving groove for receiving the tip of the press-contact part of each of the contacts protruding from the upper part of the insulating housing, and the end portion of the multi-core flat cable is held in the arrangement holding groove. When the insulating housing and the cable wiring member are connected to each other in a state in which the left and right core wires are arranged in the respective core wire arrangement grooves, each of the core wires is pressed against each of the corresponding contacts. The wire is pressure welded to the part.

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

FIG. 1 is an exploded perspective view of an electrical connector for a multi-core flat cable according to an embodiment of the present invention. The electrical connector for a multi-core flat cable of this embodiment has a contact part for making contact with a contact part of a contact of a mating connector and a pressure welding part for connecting the core wires of the multi-core flat cable 50 to be connected. a plurality of contacts 10A, 10B, a first insulating housing 20 and a second insulating housing 30 for arranging and holding these contacts 10A, 10B with their pressure welding parts protruding upward; and a multi-core flat. The cable wiring member 40 has a holding groove for holding the end portion of the cable 50 and is coupled to the upper portions of the first insulating housing 20 and the second insulating housing 30.

FIGS. 2 and 3 show two types of contacts 10A and 10B disposed within the first and second insulating housings 20 and 30, respectively, in enlarged views. As clearly shown in FIG. 2, one type of contactor 10A is made of a conductive metal material having spring properties, and includes a contact portion 11A and a pressure contact portion 1.
2A, and an intermediate portion 13A. Contact part 1
1A includes a contact tongue 11A' for contacting a mating contact, a convex portion 11A'' at four locations around the contact tongue 11A', and an outer side of the upper convex portion 11A''. A protrusion 11A is formed. Pressure contact part 12
A slit 12A' is formed in A for pressure-connecting the core wires of the multi-core flat cable to be connected. The intermediate portion 13A is a second insulating housing 20
A protrusion 13A' is provided for insertion and locking into the contact hole 31A, and a stepped portion 13A'' is formed at the top of the protrusion 13A'.The most distinctive feature of this contact 10A is is the contact part 11A
The center of the pressure contact portion 12A is different from the center of the pressure contact portion 12A by a dimension α. The reason for this will be explained in detail later.

As clearly shown in FIG.
3B, one of the types of contacts 10 mentioned above
Since it has the same configuration as A, detailed explanation thereof will be omitted. However, it should be noted that in the plate thickness direction, the center of the contact portion and the center of the pressure contact portion differ by a dimension β due to the curved portion 13B.

FIG. 4 shows the upper end surface 2 of the first insulating housing 20.
Fig. 5 is a top view seen from A in Fig. 4.
- It is an A line enlarged sectional view. First insulating housing 2
0, as shown in FIGS. 4 and 5, is integrally molded from an insulating material such as a plastic material, has an upper end surface 21 and a lower end surface 22, and has a large number of holes penetrating from the upper end surface 21 to the lower end surface. The contact array holes 23 are formed in four rows when viewed from the upper end surface 21 and in two rows when viewed from the lower end surface 22.

As clearly shown in FIG. 1A, FIG. 4, and FIG. 5, the shape of the contact array hole 23 is
When viewed from the upper end surface 21 side of the insulating housing 20, it has a convex shape, and the contacts 10A and 10B
contact tongue hole portions 23A, 23B that receive the contact tongue pieces 11A' and 11B'; and a contact plate hole portion 23A' that receives the plate portions that are flush with the pressure contact portions 12A and 12B of the contacts 10A and 10B.
23B', and a male contact receiving opening portion 23A'' for receiving a lower mating male contact (not shown).
It consists of 23B''.

As clearly shown in FIG. 4, the arrangement pitch of the contact arrangement holes 23 in the first and second rows in which the insulation displacement parts are arranged in a staggered manner is twice the arrangement pitch of the cores of the multi-core flat cable to be connected. (in this example, it is 1.27 mm), and
The convex-shaped contact array holes 23 are alternately oriented in opposite directions. However, the centers of the contact tongue hole portions 23A and 23B of each contact array hole 23 are aligned in a straight line. The contacts 10A and 10B shown in FIGS. 2 and 3 are inserted into the contact arrangement holes 23 of each row configured in this way.
FIG. 1A shows the state in which it is installed. In other words, the contact array holes 2 of row A, which is the outer row of the row
3A, the stepped portion 13A'' of the contactor 10A is placed on the right side, and the contact tongue piece 11A' is inserted and arranged toward the front side. is the stepped portion 13 of the contactor 10B.
B'' is on the right side, and the contact tongue piece 11B' is inserted and arranged toward the rear side.Similarly, A
In the row of contact array holes 23A, the stepped portion 13A'' of the contact 10A is placed on the left side, and the contact tongue piece 11 is placed on the left side.
Insert and arrange with A' facing the rear side. In the contact array hole 23B of the B row, which is the inner row of the th row, the stepped portion 13B'' of the contact 10B is placed on the left side, and the contact tongue piece 11 is placed on the left side.
Insert and arrange B′ facing the front side.

In this way, the contacts 10A and 10B arranged in the first insulating housing 20 are arranged such that the center of the contact portions 11A and 11B of the contacts and the pressure contact portions 12A and 12B are
(In this example, the α dimension is 1/2 of the fiber pitch of 0.635 mm of the multi-core flat cable, i.e.,
0.35175mm).

Furthermore, on both sides of the first insulating housing 20,
Locking leg 42A of cable wiring member 40A to be described later
Guide grooves 25 are formed on the bottom walls of these guide grooves 25 for receiving and guiding the first insulating housing. A hanging protrusion 26 is formed for locking the cable wiring member 20, the second insulating housing 30, and the cable wiring member 40 in a combined state.

The second insulating housing 30 is preferably integrally molded into a substantially flat plate shape from an insulating material such as plastic. This second insulating housing 30 has contacts 10A and 1 disposed in the first insulating housing 20.
The intermediate portions 13A and 13B of the protruding pressure contact portions 12A and 12B of the contacts 10A and 10B are penetrated through the protruding pressure contact portions 12A and 12B of the contactors 10A and 10B.
Intermediate holding holes 31A and 31 for holding
A large number of B are formed. This intermediate part holding hole 31
6, which is an enlarged view of section D in FIG. 1B, and FIG. 7, which is an enlarged sectional view taken along line B-B in FIG. Chamfered portions 31A' and 31B' are provided on the lower surfaces of the intermediate holding holes 31A and 31B to facilitate insertion of the contacts 10A and 10B. Further, a large chamfered portion 31B'' is formed inwardly on the lower surface of each of the B rows and the B rows, corresponding to the curved portion 13B of the contactor 10B.
Steps 31A'' and 31B'' are formed in the middle of B to abut against the steps 13A'' and 13B'' provided on the contacts 10A and 10B and to prevent the contacts 10A and 10B from floating up. .

The cable wiring member 40 is shown in FIG.
As shown in FIG. 1, it is formed from a first cable wiring member 40A and a second cable wiring member 40B. The first cable wiring member 40A and the second cable wiring member 40B are assembled with each other, and the first cable wiring member 40A
is formed with engaging arms 41A on both end faces thereof to engage with and integrate with the second cable wiring member 40B extending in the front direction, and furthermore, on both end faces thereof, engagement arms 41A extending downward are formed. and a locking protrusion 42 at the tip.
A locking leg 42A having A' is provided. A multi-core flat cable is connected to the second cable wiring member 40A on one side of the first cable wiring member 40A.
A holding groove 43A is provided for holding the cable together with B, and a dogleg-shaped recess 43A' is formed approximately in the middle of the holding groove 43A to prevent the multi-core flat cable from slipping out. . Furthermore, the first
A core arrangement groove 44A connected to the above-mentioned holding groove 43A is formed on the lower surface of the cable wiring member 40A.
Two rows of pressure contact holding grooves 45A are provided for receiving 2A and 12B.

Similarly, one side surface of the second cable wiring member 40B has a holding groove 43 for holding the multi-core flat cable together with the first cable wiring member 40A.
A dogleg-shaped protrusion 43B' for preventing the multi-core flat cable from coming off is formed approximately in the middle of the holding groove 43B. Furthermore, on the lower surface of the second cable wiring member 40B,
Core wire arrangement groove 44 connected to the above-mentioned clamping groove 43B
B is formed, and contacts 10A and 10B
Two rows of pressure contact portion holding grooves 45B are provided for receiving the pressure contact portions 12A and 12B.

Regarding electrical connectors configured in this way,
The assembly and the procedure for connecting the multi-core flat cable will be explained below.

(1) Insert the contactor 10A into the contactor array hole 23A of the A row of the first insulating housing 20 with the contact tongue piece 1
1A' is inserted and arranged with the stepped portion 13A facing the right side.

(2) Next, place the contact 10B in the contact arrangement hole 23B of the B row, and place the contact tongue piece 11B' backward.
The stepped portion 13B is inserted and arranged toward the right side.

(3) Insert the contactor 10A into the contactor arrangement hole 23A of the A row of the first insulating housing 20 with the contact tongue piece 1
1A' is inserted toward the rear, and the stepped portion 13A is inserted toward the left side.

(4) Next, place the contact 10B in the contact arrangement hole 23B of the B row, and place the contact tongue piece 11B' forward.
The stepped portion 13B is inserted and arranged toward the left side.

(5) Next, cover the second insulating housing 30 from the top of the first insulating housing 20, and each contact 10A
and 10B, the intermediate portions 13A and 13B are held.

(6) Next, in order to process the terminals of the multi-core flat cable 50, only the insulation coating 51 is cut at a suitable location 51A from the terminal of the cable 50 using a cutting tool (see FIG. 9A).

(7) Then, move the cut insulation coating 51 in the direction of the arrow, that is, toward the tip end, to expose the core wire 52 (see FIG. 9B).

(8) Next, every other exposed core wire 52 is cut at its tip end side using a tool (see FIG. 9C).

(9) Next, the cable 50 is held in the core wire arrangement mold 60.
The cable 50 is formed into a convex shape, and the core wires are separately arranged. That is, the cable 50 processed as described in item (8) above is held between the upper clamping cable arrangement mold 60A and the lower clamping cable arrangement mold 60B as shown in FIG. 10, and the exposed core is The wires 52A and 52B are separated into upper and lower parts, and the core wire 52 is moved from the right side by moving the core wire arrangement mold 61.
While pressing and shaping A and 52B,
Position the pitch. However, in this case,
The clamping cable arrangement mold 60 is used for the cable wiring member 4
It may be replaced with 0.

(10) After processing the end of the cable 50 in the above (9), as shown in FIG.
A and 40B sandwich the cable 50 and integrate the cable 50 with the cable wiring member 40.

(11) Next, the cable 50 and the cable wiring member 4
0 is placed in the divided receiving molds 70A and 70B facing in opposite directions.
The receiving molds 70A and 70B are divided into right and left sides and are movable so as to sandwich the cable wiring member 40. Further, a connector block 1 with the top and bottom reversed is provided on a corresponding upper part of the cable wiring member 40, and the connector block 1 is inserted into the cable wiring member 40 using a push die 75. Then, the contact 1 protruding from the connector block 1
The pressure contact parts 12A and 12B of 0A and 10B are inserted into the pressure contact holding groove 45 of the cable wiring member 40, and the core wire 52 of the cable 50 is press-fitted into the slits 12A' and 12B' provided in the pressure contact parts 12A and 12B. (See Figure 12).

(12) Finally, the extra core wire is cut off by the core wire cutters 76, 76 provided on both sides of the push die 75, and the connector is completed (first
(See Figure 3).

FIG. 14 and FIG. 15 are diagrams showing another embodiment of the present invention. That is, connector block 1
In case A, a large number of rows of contact array holes 23 are provided to arrange the contacts 10A and 10B, and the cable 50
A large number of contacts are arranged according to the arrangement of the contacts of the connector block 1A.

FIG. 14 shows such a cable wiring member 40.
The figure shows a state in which the excess length of the core wire 52 is cut in advance with a cutter 76 before being assembled into the connector block 1A to prepare the connector block 1A. As shown in FIG. 15, the plurality of cable wiring members 40 prepared in this way are pressed from above against each corresponding group of contacts 10A and 10B arranged in large numbers on the connector block 1A. You can combine them like this.

In the above explanation, the terminals of the multi-core flat cable are arranged in the cable wiring member with the core wires exposed and distributed to the left and right, but the present invention is not limited to this. Alternatively, without exposing the core wires, the single wires of the cable may be separated one by one and distributed to the left and right and arranged on the cable wiring member.

FIG. 16 shows yet another embodiment of the invention.
All of the contacts in the embodiments shown in FIGS. 1 to 8 had their contact portions and pressure contact portions formed in the same plane. With this type of contact configuration, the contact surface of the mating male contact is arranged in the extending direction of the housing, so the pitch is inevitably large, for example, the limit is about 1.27 mm, and the pitch is large. 1/2 of
Arrangement is not possible at 0.635mm. Furthermore, since the contacts themselves are arranged in the extending direction, small pitches, for example, 0.635mm pitch,
I can't create an array. For this reason, it is necessary to arrange the contacts in at least two rows with a pitch of, for example, 1.27 mm. For this reason, the size of the connector has inevitably been increased.

Therefore, we reduced the size of the connector to match the pitch of the ideal multi-core flat cable.
Good contact arrangement with 0.635mm pitch. The embodiment shown in FIG. 16 is a specific example of the configuration. The contact 100 in this embodiment has a contact portion 110 similar to the contacts 10A and 10B in the previous embodiment.
It has a pressure contact part 120 and an intermediate part 130,
Of these, the contact portion 110 and the pressure contact portion 120 may have substantially the same configuration as the contacts 10A and 10B described above, and therefore will not be repeatedly described in detail. The contact portion 110 and the pressure contact portion 120 are connected to the intermediate portion 130 by a bent portion 131 . This bent portion 13
1, the direction of pressure contact with the pressure contact part 120 and the contact direction with respect to the contact part 110 are parallel to each other, and the contact part 1 is parallel to the extending surface of the pressure contact part 120.
The extending surfaces of 10 are approximately perpendicular to each other. Other configurations of the intermediate portion 130 may be substantially the same as those of the contacts 10A and 10B described above, and therefore will not be described in detail again. In this embodiment, two types of contacts 100 are prepared. That is, by preparing two types of bent portions 131 with different lengths and arranging these two types of contacts alternately and in opposite directions, the pressure contact portions 120 can be arranged in a staggered arrangement in two rows. , four rows, and the contact portions 110 are arranged in a straight line in one row. The connector configured in this manner does not require the second insulating housing 30 described above, and the width of the insulating housing inserted into the mating connector can be reduced.

FIG. 17 shows a plurality of connector configurations of the embodiment shown in FIG. 16 arranged side by side. In the connector structure shown in FIG. 17, a plurality of cable wiring members 40 prepared as described in connection with FIG. It can be connected to a corresponding group of contacts by pressing them into contact from above.

FIGS. 18 and 19 show another embodiment of the method for processing the terminals of a multi-core flat cable. That is, in the method for processing the terminals of a multi-core flat cable in the embodiment described above, the terminals of the cable are separated and distributed to the left and right and incorporated into the cable wiring member, but at this time, the terminal pitch of the cables distributed to the left and right is If the cable is misaligned, it may be difficult to fit into the cable arrangement groove 44 of the cable wiring member. Therefore, it is preferable to fix the left and right terminals with adhesive tape to prevent pitch deviation. The specific processing method will be explained below with reference to FIGS. 18 and 19.

In the initial stage of cable terminal processing, the same processing as in the above-mentioned sections (1) to (8) in the above-mentioned processing method is performed. Therefore, the description will not be repeated in detail.

Following the processing in section (8) above, the following processing is performed.

(1) In Figure 18, multi-core flat cable 5
1 is held between sandwiching core wire arrangement molds 60A and 60B, and the core wires 52A and 52B of the cable 51 are separated and distributed into upper and lower parts. At this time, fusion tapes 55 are provided on the left and right sides of the core wires 52A and 52B. This fusion tape 55
may be only on one side, i.e. on the left or right side.

(2) Next, move the cable arrangement mold 61A heated by the heater 62, and move the sandwiched cable arrangement mold 60A.
and pressing the fusion tape 55 and the core wires 52A, 52B between 60B and the core wire arrangement mold 61A,
In addition to shaping and pitch-positioning the core wires 52A and 52B, the fusion tape 55 is heated by the core wire arrangement mold 61A to fuse the core wires together to prevent displacement of the positioned core wires. .

(3) Next, the core wire arrangement mold 61A fusion tape 55 is heated to fuse the core wires together.

(3) Next, the cable arrangement mold 61A is separated from the sandwiching cable arrangement molds 60A and 60B, and the cable cutters 6 are provided on both sides of the cable arrangement mold 61A.
5 and 65 are moved to the sandwiching core wire arrangement molds 60A and 60B, and the excess core wires 52A and 52B are cut.

(4) Next, as shown in FIG. 19, the cable 50 is sandwiched between the cable wiring members 40A and 40B, and the cable wiring members 40A and 40B and the cable 50 are integrated.

(5) And the cable 50 and the cable wiring member 4
The integrated parts 0A and 40B are installed in receiving molds 70A and 70B that are divided in opposite directions, similar to the step (12) in the previous embodiment (see FIG. 12). This receiving mold 70
The cable wiring members 40A, 40A and 70B are divided into left and right parts and can be moved.
B is held between them. Then, the connector blocks 1 with the upper and lower sides reversed are provided on the corresponding upper portions of the cable wiring members 40A and 40B, and the connector blocks 1 are inserted into the cable wiring members 40A and 40B using a push die 75. Then, the pressure contact portion 12 of the contact 10 protruding from the connector block 1 is inserted into the pressure contact portion holding groove 45 of the cable wiring member, and the slit 1 is inserted into the pressure contact portion holding groove 45 of the cable wiring member.
The core wire 52 of the cable 50 is press-fitted into 2' to complete the connection.

FIG. 20 is a diagram for explaining another embodiment of terminal processing of a multi-core flat cable. In a multi-core flat cable, it is sometimes necessary not only to connect the aligned core wires to a connector as they are, but also to cross the core wires for connection. In order to meet such needs, as shown in FIG. 20, the insulation coating 51 at the terminal of the cable 50 is removed to separate and expose the core wires 52, and then the desired core wires are covered with an insulator (see FIG. (not shown)
are interposed and crossed, and the position is fixed using a fusion tape 55.

FIGS. 21 and 22 are diagrams showing other embodiments of the cable wiring member. This cable wiring member 400 is formed from a first cable wiring member 400A and a second cable wiring member 400B like the above-mentioned cable wiring member, and further includes a holding plate 450 below which holds down the core wire of the cable. It is equipped with Locking recesses 401A and 401B for engaging with the locking protrusions 454 of the locking arms 453 of the holding plate 450 are provided below both sides of the first and second cable wiring members 400A and 400B, Furthermore, cable wiring member 400A
Side recesses 402A and 402B for receiving protrusions 455 provided on both sides of the holding plate 450 are provided on the lower end surface of the holding plate 400B. Other configurations of the cable wiring members 400A and 400B are as follows:
Since the configuration may be the same as that of the embodiment described above, detailed explanation will be omitted.

The structure of the holding plate 450 is that the core wire 52A of the cable
A wire holding plate 451 is provided to prevent the downward movement of the wire holding plate 451 and 52B.
1 is formed with a through hole 452 for penetrating the pressure contact part of the contact, and is further formed with a core wire holding plate 4.
Cable wiring members 400A,
Locking protrusion 4 for locking and integrating with 400B
A pair of locking arms 453 having 54 are provided. Further, cable wiring members 400A, 40 are provided on both sides of the cable holding plate 451 in order to prevent the tips of the cable cores 52A, 52B from moving forward.
A protrusion 455 is formed to be inserted into the side recesses 402A and 402B of 0B. FIG. 22 shows a state in which the cable wiring member 400 configured as described above is assembled into a connector block. With such a configuration of the cable wiring member 400, the core wires 52A and 52B of the cable 50 are held down and fixed by the holding plate 450, so that it can be easily assembled into a connector block.

Effects of the Invention According to the electrical connector for a multi-core flat cable of the present invention as described above, the following effects can be obtained.

(1) At the end of a multi-core flat cable, the cable cores are distributed to the left and right, placed on the cable wiring member, and then connected to the connector block by pressure connection, so even multi-core flat cables with extremely small pitches can be separated. Since the pitch of the cable is double the pitch of the cable, it is possible to connect the contactor by pressure contact with the conventional high reliability.

(2) A large number of contacts are arranged in multiple rows, and the center of the contact part of the contact is different from the center of the pressure welding part, so the wide contact part is arranged in multiple rows. Since the narrow press-contact parts are arranged in rows at the same pitch and are arranged in a staggered manner, the connector as a whole can be miniaturized.

(3) Since the size of the contact does not need to be so small and the shape can be simple, processing is easy, connection reliability is high, and costs can be reduced.

(4) The pitch of multi-core flat cable is
Since connectors with a pitch of 0.635 mm, which is half the pitch of 1.27 mm, can be connected, the connector can be further miniaturized.

(5) Since the connector block can accommodate multiple rows of contacts and can correspondingly connect multiple cable wiring members by pressure contact, it is possible to obtain a compact connector with a large number of cores.

(6) In the case of the embodiment described with reference to FIG. 1, among the four rows of contacts, the middle two rows of contacts are bent outward;
The multi-core flat cable can be placed vertically in the center of the connector block, and this vertical cable pullout allows the connectors to be installed side by side along the longitudinal sides of the connector. , it becomes possible to increase the density of the set.

(7) In the case of the embodiment explained with reference to Fig. 16, the contact parts are arranged in one row and the pressure welding parts are arranged in four rows in a staggered arrangement, which makes it possible to further miniaturize the connector. Pitch cables can be connected more densely.

(8) In the connection method of the embodiment described with reference to FIG. 9, the insulation coating of the cable is used as a position holding member for the separated core wires until the connection is completed, so the connection work is simplified.

[Brief explanation of drawings]

FIG. 1 is an exploded perspective view of the arrangement of parts of an electrical connector for a multi-core flat cable as an embodiment of the present invention, and FIG. FIG. 3 is an enlarged front view and an enlarged side view of a second type of contact used in the electrical connector for multi-core flat cable of FIG. 4 is a plan view of the first insulating housing of the electrical connector for multi-core flat cable shown in FIG. 1; FIG. 5 is a sectional view of the first insulating housing shown in FIG. 4;
6 is a partial plan view of the second insulating housing of the electrical connector for multi-core flat cable shown in FIG. 1, FIG. 7 is an enlarged sectional view taken along line B-B in FIG. 6 is an enlarged sectional view taken along line C-C in FIG. 6, and FIGS. 9 to 13 are diagrams for explaining an example of a method for connecting a multi-core flat cable to the electrical connector for a multi-core flat cable of the present invention, FIG. 14 is a diagram for explaining another embodiment of the wiring method of the present invention.
FIG. 5 is an enlarged partial sectional view showing an electrical connector for a multi-core flat cable as an embodiment of the present invention, and FIG. 16 is an enlarged partial sectional view of an electrical connector for a multi-core flat cable as yet another embodiment of the present invention. FIG. 17 is a partially enlarged sectional view showing an electrical connector for a multi-core flat cable as yet another embodiment of the present invention, and FIGS. 18 and 19 are a perspective view showing an insulating housing and a contact. FIG. 20 is a schematic diagram for explaining another wiring method of the present invention. FIG. 21 and FIG. 22 are schematic diagrams for explaining another wiring method of the present invention. It is a figure which shows yet another example of the cable wiring member of the electrical connector for a short cable. 10A, 10B... Contact, 11A, 11B...
...Contact part, 12A, 12B... Pressure contact part, 20...
First insulating housing housing, 23A, 23B...
...Contact array hole, 30...Second insulating housing,
31A, 31B...Middle part holding hole, 40...Cable wiring member, 40A...First cable wiring member, 40B...Second cable wiring member, 43A,
43B... Holding groove, 44A, 44B... Core wire arrangement groove, 45A, 45B... Pressure contact holding groove, 50...
Multi-core flat cable, 51...Insulation coating, 52
...heart line.

Claims (1)

[Claims] 1. A plurality of contacts each having a contact portion for contacting a contact portion of a contact of a mating connector and a pressure welding portion for connecting core wires of a multi-core flat cable to be connected; an insulating housing for arranging and holding the contact with the pressure welding part protruding upward; and an arranging and holding groove for arranging and holding the terminal end of the multi-core flat cable; a cable wiring member to be coupled to the upper part, and the contact has at least the press-contact parts arranged in two rows on the left and right in the insulating housing, and the press-contact parts in each row are arranged in a staggered manner and in the plurality of press-contact parts. The fibers are arranged at an arrangement pitch that is twice the fiber arrangement pitch of the core flat cable, and the positions of the insulation displacement parts between each row are shifted from each other by the above-mentioned fiber arrangement pitch, and the contact parts are , are arranged on a straight line in two rows on the left and right, and the plurality of contacts are of two types, one type of contact has a pressure contact part and a contact part thereof. The vertical center of the pressure welding part and the vertical center of the contact part are in the same plane as the plate surface of the multi-core flat cable, and the distance between the vertical center of the pressure welding part and the vertical center of the contact part is equal to the fiber arrangement pitch of the multi-core flat cable. It is out of alignment,
In the other type of contact, the pressure welding part and the contact part are in different planes parallel to the plate surface of the contact, and the vertical center of the pressure contact part and the vertical center of the contact part are The contacts are deviated along the plate surface of the contact by a distance equal to the core wire arrangement pitch of the multi-core flat cable, and the inner press-contact portions of the staggered press-contact portions in each row are offset from the other side. the outer displacement portions of the staggered displacement portions in each row are provided by the one type of contact, and the cable wiring member A fiber arrangement groove extending left and right following the arrangement holding groove on the lower surface coupled to the upper part of the insulating housing for arranging the respective fibers distributed to the left and right of the terminal of the multi-core flat cable; ,
A pressure contact receiving groove is provided for receiving a tip of a pressure contact portion of each of the contacts protruding from the upper part of the insulating housing, and the end portion of the multi-core flat cable is held in the arrangement holding groove. When the insulating housing and the cable wiring member are connected to each other with the left and right core wires arranged in the respective core wire arrangement grooves, each of the core wires is connected to the press contact portion of each of the corresponding contacts. An electrical connector for a multi-core flat cable, characterized in that it is connected by pressure welding. 2. A plurality of contacts each having a contact portion for contacting a contact portion of a contact of a mating connector and a pressure welding portion for connecting a core wire of a multi-core flat cable to be connected, and a plurality of contacts having a pressure welding portion for connecting the core wires of a multi-core flat cable to be connected; an insulating housing for arranging and holding the multi-core flat cable so as to protrude upward; and a arranging and holding groove for arranging and holding the terminal end of the multi-core flat cable, and is coupled to the upper part of the insulating housing. and a cable wiring member, wherein the contactor has at least the press-contact parts arranged in two rows on the left and right in the insulating housing, and the press-contact parts in each row are arranged in a staggered manner and are connected to the center of the multi-core flat cable. They are arranged at an arrangement pitch equal to twice the wire arrangement pitch, and the positions of the pressure contact parts between each row are shifted from each other by the amount of the wire arrangement pitch, and the contact parts are arranged in a straight line in one row. The plurality of contacts are arranged in two types, and in one type of contact, the surface of the contact part and the surface of the pressure contact part are perpendicular to each other, and the contact The longitudinal center of the section and the longitudinal center of the insulation displacement section are separated by a first predetermined distance along the surface of the contact section, and the other type of contact is separated by a first predetermined distance along the surface of the contact section. and the plane of the pressure contact part are perpendicular to each other, and the longitudinal center of the contact part and the longitudinal center of the pressure contact part are larger than the first predetermined distance along the surface of the contact part. a second predetermined distance apart, the inner pressure contact portions of the staggered pressure contact portions in each row are provided by the one type of contact; An outer pressure contact part of the pressure contact parts is provided by the other type of contactor, and the cable wiring member is disposed in a lower surface connected to the upper part of the insulating housing and continues into the retaining groove. a wire arrangement groove for arranging each of the core wires extending left and right and distributed to the left and right of the terminal of the multi-core flat cable; and a pressure welding part receiving groove for receiving the tip part, and the terminal part of the multi-core flat cable is held in the arrangement holding groove, and the core wires distributed to the left and right are arranged in the respective core wire arrangement grooves. When the insulating housing and the cable wiring member are connected in a state in which the cables are connected to each other, each of the core wires is press-connected to the press-connected portion of the corresponding contact. Electrical connector for.