JP2574041Y2 - Connector for cable connection - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a flexible flat cable having a conductor pattern formed thereon, such as an FPC (flexible printed circuit) cable or an FFC (flexible flat cable), and a printed circuit. The present invention relates to a connector used for electrically connecting a substrate (hereinafter, referred to as a substrate).

[0002]

2. Description of the Related Art As shown in FIG. 6, a connector conventionally used for electrically connecting a flat cable and a board includes an insulator 25 and an insulator 2 as shown in FIG.
5 has a conductive contact 26 incorporated in an opening 25a.

The contact 26 connects a contact spring portion 26a provided in the opening 25a, a holding portion 26b opposed to the contact spring portion 26a, and one ends of the contact spring portion 26a and the holding portion 26b. Connection portion 26c,
Terminal portion 2 extending from connection portion 26c on holding portion 26b side
6d.

[0004] On the other hand, the conductor of the cable 24 is exposed on the surface of the tip. A reinforcing plate 24a is attached to the back surface of the distal end of the cable 24. Cable 24
The connection between the cable and the connector is performed by inserting the insertion end side of the cable 24 into the opening 25a of the insulator 25 (in the direction of arrow I).
I do. As a result, the insertion end of the cable 24 pushes and spreads the contact spring portion 26a away from the holding portion 26b.

Accordingly, the cable 24 is held in the thickness direction by the contact spring portion 26a and the holding portion 26b.
The conductor of the cable 24 is brought into contact with the contact 26.

Another example of a conventional connector is as follows.
There is a so-called ZIF (Zero Insertion Force) connector that makes it easier to connect a cable and a connector. ZIF connector
As shown in FIG. 7, an insulator 27, a fork-shaped contact 28 held in an opening 27a of the insulator 27, and a contact portion 28a of the contact 28
Insulator 2 pressing cable 24 against
9.

The ZIF connector is connected to the cable 24 by inserting the connection end of the cable 24 into the opening 27a of the insulator 27 with zero insertion force (in the direction of arrow II).
Then, after the conductor of the cable 24 is positioned on the contact portion 28a of the contact 28, the slide insulator 29 is closed by rotating in the direction of arrow III. With this operation, the conductor of the cable 24 is pressed against the contact 28 to perform the operation.

[0008]

However, in the connector shown in FIG. 6, it is necessary to guide the cable 24 into the opening 25a of the insulator 25 by moving the cable 24 in the insertion direction. At this time, for example, when the positioning of the insulator 25 is not performed accurately, the cable 24 is inserted obliquely in the lateral direction with respect to the insertion axis, and the conductor of the cable 24 and the contact 26 are inserted.
Do not match, and a contact failure is likely to occur.

Further, since there is no positioning of the cable 24 in the direction of the insertion axis, the insertion of the cable 24 is incomplete and the contact is likely to be poor.

In addition, when the cable 24 is inserted, the structure is such that the cable is inserted while the contact spring portion 26a of the contact 26 is expanded. Therefore, when the number of the contacts 26 increases, a large insertion force is required. .

Further, in the case of the ZIF connector shown in FIG. 7, since the slide insulator 29 is used for locking the connector and the cable 24, the slide insulator 29 must be operated.

SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a cable connector which can prevent a cable from coming off and can easily and surely position the cable.

[0013]

According to the present invention, there is provided an insulator, a conductive contact held by the insulator, and hook members attached to both sides of the insulator, wherein the insulator is a flat cable. The opening to receive the front and outside of the contact
A partition formed inside the hook member, and an installation surface facing the substrate, the contact having a contact portion provided in the opening, and the hook member connecting the cable to the installation surface. After inserting the cable obliquely with respect to the opening and facing the contact portion, the cable is rotated in a direction parallel to the installation surface, and the cable is rotated. To
A locking portion for blocking and locking the cable;
The portion has a plane substantially U-shaped portion sandwiching the partition plate
Thus , a cable connector is obtained.

[0014]

According to the present invention, the locking means includes:
A connector for cable connection is provided, which has a projection for blocking the cable in the pull-out direction.

According to the present invention, there is provided a connector characterized in that the hook member has an engaging portion for engaging with the insulator.

According to the present invention, there is provided a connector in which the hook member has a fixing portion for fixing the insulator to the substrate.

[0018]

According to the connector for cable connection of the present invention, the cable is obliquely inserted into the opening, and then the cable is rotated in a direction parallel to the board, so that the contact between the conductor of the cable and the contact portion of the contact is made. It becomes possible.

By providing the hooking member with a hook member, the cable is locked, the connection state between the cable and the contact is maintained, the hook member is provided with an engaging portion, and the engaging portion is engaged with the insulator. It can absorb the force from the cable.

Since the cable is obliquely inserted, the force at the time of insertion becomes zero and the cable is locked by the hook member, so that the slider operation at the time of insertion becomes unnecessary.

Further, by providing a projection on the hook member, the positioning of the cable in the direction of the insertion axis and the lateral direction thereof become clear, and a contact failure is eliminated. At the same time, the projection also serves to prevent the cable from coming off.

Further, even if a force is applied to the hook member from the cable, the engaging portion can contact the insulator with the insulator to suppress permanent deformation of the hook member, and the contact force between the contact and the cable can be sufficiently increased. Can be secured.

[0023]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the cable connector of the present invention will be described below with reference to FIGS.

Referring to FIGS. 1 to 3, a cable connector includes an insulator 1 and a plurality of conductive contacts 2 held at a certain interval on insulator 1.
And a hook member 3 attached to both sides of the insulator 1.

The insulator 1 includes an upper plate 1a, a lower plate 1b parallel to the upper plate 1a, a large opening 1d for receiving the cable 4 between the upper plate 1a and the lower plate 1b, and an upper plate 1a.
And a side wall plate 1e provided near both ends of the upper plate 1a and the lower plate 1b in the vicinity of the lower plate 1b.

The installation surface 1c, which is the outer surface of the lower plate 1b of the insulator 1, faces the substrate 10 shown in FIG. The upper plate 1a has a smaller width in the direction in which the cable 4 is inserted than the lower plate 1b. Opening 1d
Accepts a flat cable 4 inserted obliquely with respect to the installation surface 1c.

The contact 2 extends in parallel with the installation surface 1c and has a holding portion 2b provided in the opening 1d.
b, a contact portion 2c opposing at a distance from
connecting part 2d, which connects b and contact part 2c to each other at one end side
And a terminal 2e extending from the connection 2d to the outside of the insulator 1. A fulcrum portion 2a protruding toward the contact portion 2c is formed at an intermediate portion of the holding portion 2b. The contact portion 2c has elastic restoring properties and is bent in a substantially U-shaped side surface. The connection portion 2d is held by the insulator 1.

As shown in FIG. 3, a cable 4 having a reinforcing plate 4a provided at the end thereof is inserted into the opening 1d of the insulator 1 obliquely with respect to the installation surface 1c. Further, when the tip of the cable 4 reaches the inner wall 1f formed in the inner part of the opening 1d of the insulator 1, the cable 4 is rotated around the fulcrum 2a of the holding portion 2b as a fulcrum until it becomes parallel to the installation surface 1c (FIG. 3 arrow V direction). At this time, the conductor of the cable 4 comes into contact with the contact portion 2c of the contact 2.

The hook member 3 has a locking means for locking the cable 4 as shown in FIG. The locking means comprises a projection 3 for blocking the cable 4 in the pull-out direction.
a and a locking portion 3b for preventing rotation of the cable 4.

The locking portion 3b is a flat plate portion 3 of the hook member 3.
d is a portion obtained by bending one end side into a substantially U-shaped plane. The protrusion 3a protrudes at right angles to the flat plate portion 3d of the hook member 3.

The hook member 3 is made, for example, by punching and bending a single conductive plate. Further, the hook member 3 is provided on the insertion side of the cable 4 with an engaging portion 3c which engages with the hook-like wall portion 1g of the insulator 1.
And a fixing portion 3 e for mounting the installation surface 1 c on the substrate 10 and fixing the insulator 1 to the substrate 10.

The hook-like wall portion 1g is an inverted L-shaped section formed in the direction from the lower plate 1b to the upper plate 1a of the insulator 1 and parallel to the lower plate 1b. The engaging portion 3c is a portion which is spaced from the locking portion 3b in the direction orthogonal to the installation surface 1c and is bent into a substantially U-shaped plane having a width smaller than that of the locking portion 3b.
The fixing portion 3e extends from the flat plate portion 3d in the direction opposite to the projection 3a, and has a tip portion parallel to the installation surface 1c.

The hook member 3 is held in a gap between the side wall plate 1e of the insulator 1 and a partition plate 1h connecting the upper and lower plates 1a and 1b inside the side wall plate 1e. The locking portion 3b has a substantially U-shaped planar portion having a partition plate 1h.
Is sandwiched between. In this state, the engaging portion 3c is
Are engaged, and the distal end portion of the fixing portion 3e extends outside the side wall plate 1e of the insulator 1. The fixing portion 3e also serves as a hold-down because the insulator 1 is fixed to the substrate 10.

Next, the operation of connecting the cable 4 to the connector will be described with reference to FIGS. 5 (A) and 5 (B).

As shown in FIG. 5A, the pair of hook members 3 held on both sides of the opening 1d
Are obliquely pushed by both sides of the reinforcing plate 4a of the cable 4 to allow the cable 4 to pass.

When the cable 4 is inserted to the depth of the opening 1d and the cable 4 is turned around the fulcrum 2a of the contact 2 until it becomes parallel to the installation surface 1c, the hook member 3 is elastically restored and engages with the upper surface of the reinforcing plate 4a of the cable 4 so that the cable 4 and the contact 2
Of the contact portion 2c is maintained.

As shown in FIG. 5 (B), when the cable 4 is fitted, the hook member 3 causes the projection 3a of the hook member 3 to move the cable 4 in the pull-out direction (the direction of the arrow VI) of the cable 4. Cable 4 at the same time as retaining
Can be easily confirmed, and it is always accommodated in the proper connection position, so that incomplete connection can be prevented. Further, since the reinforcing plate 4a is locked at the lower end of the locking portion 3b, the cable 4
Of the cable 4 in the rotation direction (the direction of the arrow VII).

When the cable 4 is fitted in the opening 1d, the shoulder 3f formed on the flat plate portion 3d of the hook member 3 applies a vertical force to the substrate 10 received from the cable 4. The overstress of the hook member 3 is also prevented by receiving the upper plate 1a of the insulator 1.

[0039]

As described in the above embodiments, according to the cable connector of the present invention, by providing the hook member with the locking means, the cable can be prevented from coming off and the cable can be easily and reliably positioned. It is possible and always accommodated in the proper connection position, so that operation such as rigidity and slide insulator at the time of cable insertion becomes unnecessary.

Further, locking the cable by providing the engaging portion with the hook member as a locking means, it is possible to maintain a connection state between the cable and the contact. The locking part is
Extra force is applied to the hook member because the partition plate is sandwiched.
Can prevent deformation when the
You.

Further, by providing an engaging portion on the hook member and engaging the engaging portion with the insulator, the force from the cable can be absorbed.

Further, since the cable is obliquely inserted, the force at the time of insertion into the contact becomes zero.

Further, by providing the projection on the hook member, the positioning of the cable in the direction of the axis of insertion and in the lateral direction thereof become clear, and poor contact is eliminated. At the same time, the projection also serves to prevent the cable from coming off.

Further, even if a force is applied to the hook member from the cable, the engagement portion can contact the insulator and suppress the permanent deformation of the hook member, so that the contact force between the contact and the cable can be sufficiently increased. Can be secured.

Further, by providing an engaging portion on the hook member and engaging with the insulator, overstress of the hook member can be prevented.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of a cable connector of the present invention.

FIG. 2 is a perspective sectional view showing a connection state between a hook member and an insulator.

FIG. 3 is a cross-sectional view showing a state where a cable is connected to the cable connection connector.

FIG. 4 is an enlarged perspective view showing a hook member of FIG. 1;

FIG. 5A is a cross-sectional view of a cable temporarily mounted state, and FIG.
Is a cross-sectional view when a cable is attached.

FIG. 6 is a side sectional view showing a connection state of a cable in an example of a conventional connector.

FIG. 7 is a side sectional view showing a cable connection state in another example of the conventional connector.

[Explanation of symbols]

 1, 25, 27 Insulator 1c Installation surface 1d, 25a, 27a Opening 2, 2, 26, 28 Contact 2c Contact portion 3 Hook member 3a Projection 3b Locking portion 3c Engaging portion 3e Fixed portion 4,24 Cable 4a, 24a Reinforcement plate 10 Substrate

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁶ , DB name) H01R 23/00-23/68 H01R 13/639

Claims (4)

(57) [Scope of request for utility model registration] 1. A and insulator comprises a conductive contact held to said insulator, and a hook member attached to both sides of the insulator, said insulator includes an opening for receiving a flat cable, the
The surface formed inside the hook member outside the contact
A cutting plate, and an installation surface facing the substrate, the contact has a contact portion provided in the opening, and the hook member obliquely extends the cable with respect to the installation surface.
After being inserted into the opening and facing the contact portion, the cable is rotated in a direction parallel to the installation surface,
Locking the cable by preventing rotation of the cable
A locking portion having a flat surface sandwiching the partition plate;
A cable connection connector having a substantially U-shaped portion . 2. The locking portion pulls out the cable.
The cable connector according to claim 1 , further comprising a projection that blocks in a direction . 3. The insulator according to claim 2, wherein the hook member includes the insulator.
The connector according to claim 1 , further comprising an engaging portion that engages with the connector. 4. The insulator according to claim 1, wherein the hook member includes the insulator.
Characterized by having a fixing portion for fixing to the substrate
The connector according to claim 1.