JP2003045558A - Connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent slip out of a flat cable by enhancing the holding power of the flat cable to a connector. SOLUTION: A slider is fitted to a housing of the connector by supporting the flat cable, and has a box part continuing with a tip push-in part pushed in between a fork-shaped terminal in the housing, and supports the flat cable inserted into an insertion hole, arranged in the box part by one side surface of the tip push in part. A cut-out groove orthogonal to the insertion hole is arranged from the side surface of the box part. A coble presser material locked on and joined to the cutout groove is arranged. A projection is made to arrange on the inside surface of the cable presser material. The flat cable passing through the insertion hole is pressed and held by the projection, and is inserted into the housing, in a state of fixing the flat cable by the slider and the cable presser material, with the conductor of the flat cable being supported by the side surface of the tip push-in part is electrically connected to a contact piece of the fork-shaped terminal.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flexible flat cable connector such as an FFC (flexible flat cable) and an FPC (flexible printed circuit), which reliably prevents the connector from coming off the housing. It is intended.

[0002]

2. Description of the Related Art Conventionally, a connector for a flat cable in which both surfaces of a copper foil or a printed conductor of this type are covered with insulating resin films has a structure shown in FIGS. 6 and 7A and 7B. The connector 1 accommodates a fork-shaped terminal 3 inside a housing 2 by locking the slider 4
While the flat cable 5 is supported, the flat cable 5 is pushed through the opening 2a of the housing 2 and locked and fixed, and the conductor exposed from the flat cable 5 is brought into contact with the contact piece 3a of the fork-shaped terminal 3. The housing 1 is mounted on the board 6, and the fork-shaped terminal 3 is projected from the housing 1.
The pins 3b are projected from the substrate 6 so as to be connected to the other conductor. In many cases, the housing 1 is mounted on a printed circuit board and the pins 3b are soldered to the conductors of the printed circuit board.

[0003]

In the connector having the above structure, the flat cable 5 is held by the flat cable 5.
This is done by sandwiching the tip pressing portion 4a of the slider 4 supporting the fork by the pieces 3a and 3c on both sides of the fork-shaped terminal 3. In this state, flat cable 5
In a normal state in which no pulling force or vibration is applied to the flat cable 5, the holding force of the flat cable 5 is sufficient. However, when the flat cable 5 is mounted on an automobile, the holding force of the flat cable 5 is not sufficient because vibration is added. Depending on the case, there is a possibility that it may come off from the housing 1 and may not come into contact with the fork-shaped terminal 3.

The present invention has been made in view of the above problems. By increasing the holding force of a flat cable, the flat cable is prevented from moving even if vibration or pulling force cannot be applied to the flat cable when it is mounted on an automobile. The challenge is to improve the reliability of electrical connections.

[0005]

SUMMARY OF THE INVENTION In order to solve the above problems, the present invention holds a flexible flat cable having a conductor coated with an insulating resin by a slider to position and accommodate a fork-shaped terminal. Insert into the housing,
A connector for electrically connecting a conductor of a flat cable to the terminal by electrical connection, wherein the slider includes a box portion continuous with a tip pushing portion to be pushed between fork-shaped terminals in the housing, and an end surface of the box portion. The insertion hole of the flat cable having the insertion port is penetrated, and the inserted flat cable passed through the insertion hole is supported on one side surface of the tip pushing portion, while the insertion hole is formed from the side surface of the box portion. And a cable pressing member that locks into the notch groove, and a protrusion is provided on the inner surface of the cable pressing member to press and hold the flat cable passing through the insertion hole by the protrusion. While fixing the flat cable with the cable retainer, insert it into the housing and support it on the side of the tip pushing part. Provides a connector characterized in that it contact piece and is electrically connected fork-shaped terminal conductors of the flat cable.

As described above, when the flat cable is pressed and fixed by the projection of the cable pressing member that is lock-coupled to the slider, since the notch groove is cut deeper than the insertion hole, the flat cable is pressed by the projection in a bent state. The holding force of the flat cable can be enhanced by both the fixing and the holding of the flat cable by the fork-shaped terminal when the slider is inserted in the housing. As a result, the flat cable does not move even when vibration is applied to the flat cable when the flat cable is mounted on the vehicle, and the electrical connection reliability between the conductor of the flat cable and the fork-shaped terminal can be improved.

Further, a concave portion is provided on the inner surface of the cable pressing member, and a joint terminal is accommodated in the concave portion. On the other hand, conductors to be jointed are selected and exposed on the flat cable at a position where the flat cable contacts the joint terminal. It is preferable to bring the joint terminal into contact with the joint terminal.

With the above arrangement, when it is desired to connect the conductors of the flat cable in the middle, it is possible to select any conductor and connect it easily by the joint terminal, thereby increasing the added value.

[0009]

DETAILED DESCRIPTION OF THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. The housing 20 of the connector 1 and the fork-shaped terminal 30 housed and locked in the housing 20 have the same shape as shown in FIG.

In the present invention, the structure of the slider 10 is changed from the conventional one. The slider 10 is integrally formed with a box portion 12 continuous with a tip pushing portion 11 that is pushed between the pieces 30a and 30c on both sides of the fork-shaped terminal 30 in the housing 20. The box portion 12 is formed by penetrating an insertion hole 13 in which an end surface 12a is provided with an insertion opening 13a, and the insertion hole 13 extends along the one side surface 11a of the tip pressing portion 11 with the flat cable 5 inserted through the insertion opening 13a. So that it is located.

A notch groove 14 is provided on one wide side surface 12b of the box portion 12, and the notch groove 14 is communicated with the insertion hole 13 in an orthogonal state, and cuts to a position deeper than the insertion hole 13. A cable pressing member 15 that fits into the cutout groove 14 is provided, and lock holes 15b are formed in the inner surfaces of both side frames 15a of the cable pressing member 15 so that both side surfaces 12 of the box portion 12 are formed.
The lock claw 12d protruding from c is connected to be locked.

Intermediate frame 15c of the cable pressing member 15
A protrusion 16 having a substantially triangular cross-section is provided on the inner surface of the device over its entire length. A recess 17 is provided on the upper side of the protrusion 16 over the entire length. A joint terminal 18 made of a rectangular conductive metal plate is housed and held in this recess. Note that the recess 17 may be formed on the half side instead of the entire length.

Further, the lock claws 12f are provided at the lower ends of the narrow side surfaces 12e of the box portion 12 while the lock claw locking frames 20a are provided on the opposite outer surfaces of the housing 20, so that the slider of the housing 20 can be provided. Box part 12
Are locked together.

The flat cable 5 is, as shown in FIG.
A conductor 5a made of copper foil wired in parallel is covered with insulating resin films 5b and 5c, and the tip of the conductor 5a is peeled off to expose the conductor 5a.
In addition, the conductors 5a-1, 5b-2, which are intermediately connected, are peeled off the insulating resin film 5b to expose the conductors 5a-1, 5a-2 at a predetermined distance from the exposed end portion.

Next, a method of assembling will be described. First, in a state where the cable pressing member 15 is not attached to the slider 10, the flat cable 5 having the conductor 5a exposed is inserted into the insertion hole 13 through the insertion port 13a of the box portion 12 as shown in FIG. The tip of the flat cable 5 passed through the insertion hole 13 comes out of the insertion hole 13 and the tip pushing portion 1
1 is along one surface. In addition, the conductors 5a-1 and 5a-2 exposed at the intermediate position are at positions facing the notches 14.

Then, the cable pressing member 15 is fitted into the notch groove 14 of the box portion 12 and lock-coupled. In addition,
The joint terminal 18 is previously housed and held in the concave portion 17 of the cable pressing member 15. In a state where the cable pressing member 15 is locked and coupled to the box portion 12, the projection 16 bends the flat cable 5 and presses it against the bottom surface of the cutout groove 14 to press and fix it. In addition, as shown in FIG.
The joint terminal 18 in 7 is the exposed conductor 5a-1,
5a-2 to bring these conductors into contact with the joint terminal 18
Conducts through.

As described above, the flat cable 5 is fixed to the slider 10 by the cable pressing member 15 in the assembled state. In this state, the tip pushing portion 11 is pushed into the housing 20. The tip pushing portion 11 is inserted in a state where both side walls 3a and 3c of the fork-shaped terminal 3 are spread out, and the conductor 5a with the tip of the flat cable 5 exposed.
Comes into pressure contact with the contact piece 30a on one side.

At the position where the box portion 12 of the slider 10 is in contact with the front end surface of the housing 2, the lock pawl 12f of the box portion 12 has the lock pawl locking frame 20a of the housing 20.
Lock with.

When the flat cable 5 is assembled to the connector 100 as described above, the flat cable 5 is first positioned and held by the cable pressing member 15 in the slider 10 and secondly, the slider 10 is secondly held.
It is in a state of being sandwiched between the tip pressing portion 11 and the fork-shaped terminal 30. In this way, since the flat cable 5 is held at two places, even if pulling force or vibration acts on the flat cable 5, the flat cable 5 does not move, and the conductor 5a of the flat cable 5 and the fork-shaped terminal 3 are not moved.
An electrical connection with 0 can be ensured.

Further, the required conductors of the flat cable 5 can be electrically connected by the joint terminal 18.
For example, one conductor of a flat cable may be skipped, or three or more conductors may be intermediately connected.

The present invention is not limited to the above embodiment, and when it is not necessary to connect the conductors of the flat cable 5 to each other, it is not necessary to provide the cable pressing member 15 with the recess 17 for accommodating the joint terminal. .

[0022]

As is apparent from the above description, according to the present invention, since the electric wire is bent and held by the cable pressing member in the slider supporting the flat cable,
The holding force of the flat cable can be increased as compared with the conventional connector, and even if a pulling force acts on the flat cable, the flat cable does not come off from the housing, and the electrical connection reliability can be improved.

Further, there is an advantage that the conductor of the flat cable can be intermediately connected by the joint terminal provided on the slider.

[Brief description of drawings]

FIG. 1 is a perspective view of a connector according to an embodiment of the present invention.

FIG. 2 shows a cable pressing member, (A) is a perspective view,
(B) is a BB line sectional view of (A).

FIG. 3 is a perspective view showing a flat cable.

FIG. 4 is a cross-sectional view showing a connected state of a flat cable to a connector.

FIG. 5 is an explanatory diagram in which conductors of a flat cable are intermediately connected by joint terminals.

FIG. 6 is a perspective view of a conventional connector.

FIG. 7 is a cross-sectional view showing a connected state of a flat cable to a conventional connector.

[Explanation of symbols]

5 flat cable 5a conductor 10 slider 11 Tip pushing part 12 Box section 13 insertion holes 14 Notch groove 15 Cable retainer 16 protrusions 17 recess 18 joint terminals 20 housing 30 Fork-shaped terminal 100 connector

Claims (2)

[Claims] 1. A flexible flat cable having a conductor coated with an insulating resin is held by a slider, and the fork-shaped terminal is inserted into a housing for positioning and housing,
A connector for pressing a conductor of a flat cable to the terminal for electrical connection, wherein the slider includes a box portion continuous to a tip pushing portion pushed between fork-shaped terminals in the housing, and an end surface of the box portion. The insertion hole of the flat cable provided with the insertion hole is penetrated, and the inserted flat cable passed through the insertion hole is supported on one side surface of the tip pushing portion, while the insertion hole is formed from the side surface of the box portion. And a cable pressing member that locks into the notch groove, and a protrusion is provided on the inner surface of the cable pressing member to press and hold the flat cable passing through the insertion hole by the protrusion. With the flat cable fixed with the cable holding material, insert it into the housing and support it on the side of the tip pushing part. Connector, characterized in that it contact piece and is electrically connected fork-shaped terminal conductors of the flat cable. 2. A conductor is formed by forming a recess on the inner surface of the cable retainer and accommodating a joint terminal in the recess, while selecting and exposing a conductor to be jointed to the flat cable at a position where the flat cable contacts the joint terminal. The connector according to claim 1, wherein the connector and the joint terminal are in contact with each other.