JPH0682783U - Flat cable connector - Google Patents

Abstract

(57) [Summary] [Purpose] Even a flat cable with a rigid reinforcing plate attached to the back side of a flexible cable can be easily locked to the claws of the slider. [Structure] A slider 5 is mounted in a fitting space 3 of a housing 4 in which a contact pin 1 is built-in and a fitting space 3 for inserting a flat cable 2 is formed so that the slider 5 can be inserted / removed and rotatably outwardly when extracted. When the flat cable 2 is inserted into the fitting space 3 and then the slider 5 is pushed into the fitting space 3, in the connector in which the flat cable 2 is electrically connected to the contact pin 1, the flat cable contact surface 6 of the slider 5 is In addition, the flexible cable 10 and the reinforcing plate 1 of the flat cable 2 in which the reinforcing plate 11 is applied to the back surface of the flexible cable 10
A locking protrusion 8 that is inserted and locked in the locking portion 7 formed in 1 is provided in a protruding manner.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a flat cable connector used for connecting a flexible flat cable such as a flexible flat cable (FFC), a flexible printed circuit (FPC), and a conductive inked circuit (CIC) to a printed circuit board. Is.

[0002]

[Prior art]

 Conventionally, there are various types of connectors for connecting a flat cable to a printed circuit board, and one of them is called a ZIF connector which has zero insertion / extraction resistance of the flat cable with respect to the connector. As a conventional ZIF connector, there are a surface mount type (SMT) connector as shown in FIGS. 4 and 6 and a dip type (DIP) connector as shown in FIG.

The ZIF connector of FIG. 4 is slidable in the front-rear direction (X-X direction in the figure) in the cable insertion / extraction port C on the front of the housing B in which a large number of contact pins A are mounted in a row, and The slider D is attached so that it can be flipped up when it is pulled out. When the slider D is pulled out forward and flipped up as shown in FIG. When the flat cable E is inserted all the way into the cable insertion / extraction opening C, and then the slider D is pushed into the housing B as shown in FIG. 7B, the conductor F of the flat cable E is pushed against the contact pin A by the slider D. Electrical contact.

The ZIF connector shown in FIG. 6 has a structure basically similar to that of the ZIF connector shown in FIG. 4, but this slider D is pulled out horizontally from the housing B, and when it is pulled out, it is self-weighted. It is configured to go down at. Then, as shown in FIG. 7 (a), with the slider D pulled out forward, the flat cable E is inclined from the upper side of the slider D and inserted into the cable insertion / extraction opening C, and then the same as shown in FIG. 7 (b). As shown in the figure, when the slider D is pushed into the housing B, the conductor F of the flat cable E is pressed against the contact pin A by the slider D and comes into electrical contact.

The ZIF connector of FIG. 8 is capable of sliding in a vertical direction (Y-Y direction in the figure) in a cable insertion port C on the upper surface of a housing B in which a large number of contact pins A are arranged vertically. A slider D is attached, and a claw J that can be inserted into a locking hole I formed in the flat cable E is formed on the slider D. Then, as shown in FIG. 3D, the flat cable E is inserted into the cable insertion / extraction port C from above the housing B, and the cable E is pulled toward the slider D side so that the locking hole I of the cable E is inserted into the claw of the slider D. When the slider D is pushed into the housing B in this state, the flat cable E is pushed together with the slider D, and the conductor F of the flat cable E makes electrical contact with the contact pin A of the housing B. It has become so.

[0006]

[Problems to be solved by the device]

 However, the ZIF connectors shown in FIGS. 4, 6 and 8 have the following problems. ． When the flat cable E is inserted into the cable insertion / extraction port C when the ZIF connector of FIG. 4 is bent horizontally or is not fully inserted, the flat cable E is pushed even if the slider D is pushed. Since it will be set in the housing B while it is bent or not fully inserted, electrical contact after connection may not be sufficient, or the flat cable E may come off in the middle. was there.

[0007] Similarly to the ZIF connector of FIG. 4, the ZIF connector of FIG. 6 may not be sufficiently electrically contacted or may be disconnected after the flat cable E 2 is not properly inserted.

[0008] In the ZIF connector of FIG. 8, since the locking hole I of the flat cable E is set after aligning the locking hole I of the flat cable E with the claw J of the slider D, the flat cable E is not set in a bent state, and the slider D is flat. The cable E is pushed firmly into the housing B, so there is no shortage of insertion, but since the slider D does not tilt at an angle, the flat cable E inserted in the housing B is pulled to the slider D side and attached to the same cable E. Since the provided locking hole I had to be locked to the claw J of the slider D, the workability was not so good.

[0009] In the ZIF connector of FIG. 8, when the flat cable E is flexible, the flat cable B can be pulled to the slider D side as described above, but the flat cable E has a rigid reinforcing plate on the back surface of the flexible cable. In the case of being attached, since it is difficult to pull the flat cable E toward the slider D side, there is a problem that it is difficult to fit the claw J of the slider D into the locking hole I of the flat cable E.

An object of the present invention is to provide a flat cable connector in which even a flat cable having a rigid reinforcing plate attached to the back surface of the flexible cable can be easily locked to the claw of the slider.

[0011]

[Means for Solving the Problems]

 As shown in FIGS. 1 and 2, the flat cable connector according to the present invention has a large number of contact pins 1 provided therein, and a fitting space 3 into which the flat cable 2 is inserted. The slider 5 is attached so that it can be inserted and removed and can be rotated outward when it is taken out. When the flat cable 2 is inserted into the fitting space 3 and then the slider 5 is pushed into the fitting space 3, the flat cable 2 is inserted. In the flat cable connector in which the contacts are pressed against the contact pins 1 to be electrically connected, the flat cable contact surface 6 of the slider 5 is provided with the reinforcing plate 11 on the back surface of the flexible cable 10. Locking protrusion inserted and locked in the locking portion 7 formed on the flexible cable 10 and the reinforcing plate 11 of the cable 2. There are those characterized by comprising projecting.

[0012]

[Action]

 In the flat cable connector of the present invention, when the slider 5 is pulled out, the slider 5 can be rotated outward, so that the reinforcing plate 11 is applied to the back surface of the flexible cable 10 to prevent bending. Since the flat cable 2 present can be inserted straight into the fitting space 3 of the housing 4, the insertion is easy. Moreover, while the engaging portion 7 of the inserted flat cable 2 and the engaging protrusion 8 of the slider 5 are aligned, the slider 5 is rotated toward the flat cable 2 side so that the engaging protrusion 8 of the slider 5 is flattened. After inserting into the locking portion 7 of the cable 2, the flat cable 2 is pushed into the fitting space 3 of the housing 4 together with the slider 5 simply by pushing the slider 5 into the fitting space 3, and the flat cable 2 is It is pressed against the contact pin 1 and electrically connected.

In addition, in this connector, when the flat cable 2 is inserted into the fitting space 3 in a state of being bent laterally, or when the flat cable 2 is inserted into the fitting space 3 too much or too little. In this case, since the locking protrusion 8 of the slider 5 is not inserted into the locking portion 7 of the flat cable 2, the slider 5 is prevented from being inserted into the fitting space 3 and a connection error can be prevented. You can do it.

Further, in this connector, even if the flat cable 2 is inserted into the fitting space 3 in a state where the flat cable 2 is bent slightly sideways, the cable 2 is pulled straight into the fitting space 3 by the locking protrusion 8. As a result, the horizontal bend of the flat cable 2 is corrected and the flat cable 2 is connected in a normal state. In particular, when the locking portions 7 are formed on both ends in the width direction of the flat cable 2 and the locking projections 8 are also formed on the slider 5 at the same positions, the bending can be corrected more reliably. To be done. In this way, with this connector, the flat cable 2 can be connected simply by operating the slider 5, which greatly improves usability, and also allows the flat cable 2 to be bent sideways and not properly inserted. To some extent, it is automatically canceled, and the electrical connection with the flat cable 2 is more reliable and stable.

[0015]

【Example】

 1 and 2 show an embodiment of a flat cable connector of the present invention. This flat cable connector has a plurality of contact pins 1 which are installed in a row in a row in a row with a space therebetween, and a housing 4 having a fitting space 3 into which a flat cable 2 is inserted, and a fitting space 3 for inserting and removing the flat pin 2. It is composed of a slider 5 that is freely attached and that can be pivoted outward when pulled out. Both the housing 4 and the slider 5 are made of an electrically insulating plastic material.

The contact pin 1 is formed in a shape as shown in FIGS. 2A and 2B by stamping out a conductive thin metal plate, and is a terminal portion soldered to the circuit surface of the printed circuit board 40. Two narrow-fitting beams 42 and 43, which are branched at the tip of 41, are formed so as to be vertically curved. A locking projection 44 that is locked to the housing 4 is formed at the lower edge of the upper narrow-fitting beam 42 of the two narrow-fitting beams 42, 43, and the tip of the lower narrow-fitting beam 43 is formed. Reference numeral 45 has a shape such that the upper portion thereof projects in a semicircular shape in order to improve the contactability with the conductor 2a of the flat cable 2.

The housing 4 is formed in a laterally wide rectangular parallelepiped shape, and a housing space 20 is formed therein so that a plurality of the contact pins 1 can be arranged inside the conductor 2 a of the flat cable 2 at the same intervals. There is. The contact pin 1 is inserted into the housing space 20 from the back surface of the housing 4, and the locking projection 44 formed on the upper narrowing beam 42 of the contact pin 1 is locked to the housing 4. The contact pin 1 does not come off. The housing space 20 has a fitting space 3 on the front side of the housing 4, and the flat cable 2 and the slider 5 are provided inside the two upper and lower sandwiching beams 42 and 43 protruding into the fitting space 3. Is to be inserted. Further, in the fitting space 3, the narrow-fitting beam 43 below the contact pin 1 can move up and down.

A center portion of the slider 5 in the width direction is an insertion portion 23 that is inserted into the fitting space 3 of the housing 4, and both sides of the insertion portion 23 in the width direction of the housing 4. An arm 22 fitted in a concave guide groove 21 formed on both side surfaces is provided so as to project rearward. The slider 5 is connected to the arm 22 by a lock mechanism (not shown) provided in the guide groove 21 of the housing 4 so that the slider 5 can be pulled out only from the position shown in FIG. 2B to the position shown in FIG. Further, the rear end portion 24 of each arm 22 is obliquely cut so that the slider 5 can be flipped up as shown in FIG.

Locking protrusions 8 are formed at both ends of the flat cable contact surface 6 of the insertion portion 23 of the slider 5.

The flat cable 2 is a flexible cable 10 in which a plurality of thin plate-shaped conductors 2 a are arranged between thin polyester sheets 13 and 14 at intervals, and the back surface of the tip portion of the flexible cable 10 ( A relatively thick polyester sheet (reinforcing plate) 11 is attached to this back surface in FIGS. 1 and 2. Further, substantially flat U-shaped locking portions 7 (notches) are formed at both ends in the width direction of the tip portion of the flat cable 2, and the polyester sheet 14 on the front side of the tip portion is partially peeled off. Of the conductor 2a is exposed.

In the flat cable connector of the present invention, as shown in FIG. 3, the slider 5 can be freely pulled out from the housing 4, and the slider 5 can be attached and fitted so as to be rotatable downward in the pulled out state. The flat cable 2 inserted into the fitting space 3 may contact the narrow beam 42 above the contact pin 1 inside. In this case, the upper side of the narrow space beam 42 is formed wide so that the narrow space beam 42 can be curved in the fitting space 3, and the slider 5 pulled out is sufficiently obstructed by the substrate 10 without being disturbed. It is advisable to form the housing 4 slightly higher so that it can rotate.

Although not shown in the drawings, the flat cable connector of the present invention may be manufactured as a DIP type connector as shown in FIG. 8, for example.

Further, in the flat cable connector of the present invention, instead of forming the notch-shaped locking portions 7 at both ends in the width direction of the flat cable 2, a hole is formed in the center of the flat cable 2 in the width direction. It may be a stop 7. In this case, the locking protrusion 8 of the slider 5 may be provided at the central position in the width direction like the flat cable 2.

[0025]

[Effect of device]

 The flat cable connector of the present invention has the following effects. ． Since the reinforcing plate 11 is applied to the back surface of the flexible cable 10 to make it difficult to bend, the flat cable 2 can be inserted straight into the housing 4, so that it is easy to insert. ． The flat cable 2 can be connected simply by operating the slider 5, which is very easy to use. Especially, even if the connector is downsized, this connection workability does not deteriorate so much. ． In the flat cable 2 connection work, the insertion deviation of the flat cable 2 is automatically corrected even if the connection work is done to some extent roughly, so the work efficiency is very high and the reliability after connection is also high. ． Since the flat cable 2 is locked to the slider 5 by the locking protrusions 8, the flat cable 2 having a small number of conductors 2a and a small number and a small number of poles has a high cable holding force and can be prevented from coming off. ． If the locking portions 7 are formed at both ends in the width direction of the flat cable 2, the locking portions 7 can be formed without cutting or breaking the conductor 2a even in the flat cable 2 in which the conductors 2a are arranged at high density. Since it can be formed, it can also be used for flat cables of recent high-density types.

[Brief description of drawings]

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

2A and 2B are cross-sectional views of the flat cable connector of FIG. 1, in which FIG. 2A shows a state when the slider is pulled out, and FIG. 2B shows a state when the slider is pushed in.

3A and 3B are cross-sectional views showing another embodiment of the flat cable connector of the present invention, FIG. 3A shows a state when the slider is pulled out, and FIG. 3B shows a state when the slider is pushed in. Shows.

FIG. 4 is a diagram showing an example of a conventional flat cable connector, (a) is a plan view thereof, (b) is a front view thereof, and (c) is a side view thereof.

5A and 5B are cross-sectional views of the flat cable connector of FIG. 4, in which FIG. 5A shows a state when the slider is pulled out, and FIG. 5B shows a state when the slider is pushed in.

FIG. 6 is a view showing another example of a conventional flat cable connector, (a) is a plan view thereof, (b) is a front view thereof, and (c) is a side view thereof.

7A and 7B are cross-sectional views of the flat cable connector of FIG. 4, in which FIG. 7A shows a state when the slider is pulled out, and FIG. 7B shows a state when the slider is pushed in.

8A and 8B are views showing another example of a conventional flat cable connector, in which FIG. 8A is a side view, FIG. 8B is a sectional view when a slider is pulled out, and FIG. 8C is a partial front view. , (D) are sectional views when the slider is pushed in.

[Explanation of symbols]

 1 Contact Pin 2 Flat Cable 3 Fitting Space 4 Housing 5 Slider 6 Flat Cable Contact Surface 7 Locking Part 8 Locking Protrusion 10 Flexible Cable 11 Reinforcing Plate

Claims (1)

[Scope of utility model registration request] 1. A slider 5 is freely inserted into and removed from a housing 4 in which a large number of contact pins 1 are housed, and a fitting space 3 into which a flat cable 2 is inserted is formed. When the slider 5 is movably attached and the flat cable 2 is inserted into the fitting space 3 and then the slider 5 is pushed into the fitting space 3,
In the flat cable connector in which the flat cable 2 is pressed into contact with the contact pin 1 to be electrically connected thereto, the flat cable contact surface 6 of the slider 5 and the rear surface of the flexible cable 10 are provided with a reinforcing plate 11.
A connector for flat cable, characterized in that a flexible cable (10) of the flat cable (2) to which it is applied and a locking protrusion (8) which is inserted and locked into a locking portion (7) formed on a reinforcing plate (11) are projected. .