JP2571755Y2 - Flat cable connector - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector locking structure for detachably connecting a flat cable used for wiring electronic equipment and the like.

[0002]

2. Description of the Related Art Japanese Patent Publication No. 58-18749 discloses a lock structure between a flat cable and a connector.
In itself, the convex portion of the flat cable engages with the concave inner wall surface of the housing of the connector, and the engagement state is maintained by the elasticity in the thickness direction of the spring contact.

[0003] Also, Japanese Patent Application Laid-Open No.
Japanese Patent Publication No. Hei 2-73081 discloses that an electric wire is sandwiched between terminals.
And locking by holes.

[0004]

[Problems to be solved by the invention] However , when the elasticity of the contact is reduced due to metal fatigue,
When the opposing force repeatedly acts, the electrical contact state becomes unstable, and the flat cable and the housing or the terminal become incompletely engaged, and the locking function cannot be secured stably. .

In view of the above, the present invention makes it possible to easily and surely lock the end of the flat cable with a strong and stable elasticity by a simple structure, and to easily check the continuity of each connection terminal. An object of the present invention is to provide a lock structure for a flat cable connector that is obtained.

[0006]

According to the present invention, there is provided a flat cable connector comprising: a housing;
In a flat cable connector comprising a plurality of connection terminals, a housing is opened so as to extend along the longitudinal direction of one side wall, and an insertion hole for receiving a terminal portion of the flat cable, and an opposite side wall. A plurality of grooves arranged at predetermined intervals along the longitudinal direction via a partition wall and communicating with the insertion hole, and each connection terminal is formed by a conductive elastic plate, The flat cable is accommodated in each groove of the housing in a state parallel to a plane perpendicular to the width direction of the flat cable, and each connection terminal is further inserted into a terminal portion protruding outside from the housing and an insertion hole of the housing. A contact portion that contacts each of the conductive wires exposed at the terminal portion of the flat cable from one side, and a locking portion facing the other side and provided with elasticity toward the contact portion; And a protrusion extending obliquely on the opposite side to the contact portion from the stop portion, the engaging portion and the contact portion,
Extends from the terminal in the direction of the insertion hole and connects inside the housing.
Displacement is possible by the flat elastic deformation of the connection terminal,
When the terminal portion of the flat cable is inserted into the insertion hole of the housing, the terminal portion is sandwiched between the locking portion and the contact portion by the flat elasticity of the connection terminal, and is exposed at the tip of the terminal portion. This is achieved by a structure in which each of the conducting wires can be brought into contact with the contact portion, and the reinforcing layer attached to the tip of the terminal portion is locked by the locking portion by the flat elastic deformation of each connection terminal. Is done.

[0007]

According to the above construction, when the terminal portion of the flat cable is inserted into the insertion hole of the housing, the terminal portion is connected.
Due to the elasticity of the terminal , it will be sandwiched between the locking portion and the contact portion, and further, each conductor exposed at the tip of the terminal portion,
Each of the flat cable terminals can be brought into contact with the contact portion, and the reinforcing layer attached to the end of the terminal portion is locked by the locking portion of each connection terminal. , the contact pressure between the contact portion and the engagement portion, by the geometric locking by the locking unit, ing to be securely held in the retaining state during insertion. Thus Ri is pulled flat cable, be or vibration, the terminal portion of said flat cable, easily inserted without that would be removed from the hole, in yet inserted state, projects from the locking portion By using the projection, the continuity check can be easily performed, and by pressing the projection against a jig, a slider, or the like, the locking portion can be separated from the contact portion, and the terminal of the flat cable can be separated. The part can be easily pulled out from the insertion hole.

[0008]

1 to 4 show an embodiment of a flat cable connector 10 according to the present invention. The flat cable connector 10 includes a housing 13 and a plurality of connection terminals 14. The housing 13 is open to extend longitudinally along one side wall, the upper side wall in the case shown, and the terminal 1 of the flat cable 15.
6 and a plurality of holes which are arranged at predetermined intervals through a partition wall along the longitudinal direction on the opposite side wall, the lower side wall in the case shown, and which communicates with the insertion hole 11. And a groove 12 of the same. Each connection terminal 14 is formed of a conductive elastic plate, and is accommodated in each groove 12 of the housing 13 in a state parallel to a plane perpendicular to the width direction of the flat cable 15.

Each connection terminal 14 has a flat cable 15
In a plane perpendicular to the width direction of the housing 13
Terminal portion 14a projecting out of the housing 13 and the housing 13
A contact portion 14f that contacts each of the conductive wires 17 exposed at the terminal portion 16 of the flat cable 15 inserted into the insertion hole 11 from one side, and a contact portion 14f that faces the terminal portion 16 from the other side. And a projection 14d extending obliquely from the engagement portion 14c to the opposite side to the contact portion 14f. . Here, the contact portion 14f is
The holding portion 14c and the protrusion 14d are formed at the tip of the receiving portion 14e, and the locking portion 14c and the protrusion 14d are formed at the tip of the holding portion 14b, respectively. , Connection terminal 14
The elasticity is generated not in the thickness direction, but in the flat direction of the connection terminal 14. When the terminal portion 16 of the flat cable 15 is inserted into the insertion hole 11, the locking portion 14 c hits a step portion of the reinforcing layer 18 attached to the end of the terminal portion 16 and locks it. I have. And
The locking part and the contact part extend from the terminal in the direction of the insertion hole.
Inside the housing and the connection terminals
It can be displaced depending on the shape.

The flat cable connector 10 according to the present invention is configured as described above. First, the terminal portion 16 of the flat cable 15 is inserted into the insertion hole 11 of the housing 13.
When the terminal portion 16 is inserted, the terminal portion 16 is sandwiched by the contact pressure between the contact portion 14f and the locking portion 14c due to the elasticity of the locking portion 14c, and each terminal portion exposed at the tip of the terminal portion 16 Each of the conductors 17 is a contact portion 1 of each connection terminal 14.
By being able to abut 4f, an electrical connection is obtained. Further, the reinforcing layer 18 attached to the end of the terminal portion 16 is locked by the locking portion 14c of each connection terminal 14. Thus, the terminal portion 16 of the flat cable 15
Can be reliably held in the inserted state by the contact pressure between the locking portion 14c and the contact portion 14f and the shape locking of the reinforcing layer 18 by the locking portion 14c. In particular, since the pressing portion 14b and the locking portion 14c use the flat elasticity of the connection terminal 14, the elasticity necessary for contact and engagement is strong and stable for a long period of time. Therefore, even if the flat cable 15 is pulled, the terminal portion 16 of the flat cable 15 can be easily inserted into the insertion hole 1.
There is no such thing as being removed from 1. In the inserted state, the protrusions 14 projecting from the locking portions 14c are provided.
By bringing an inspection terminal or the like into contact with an independent hole 19 provided for each terminal from d, a continuity check can be easily performed.

Further, the projection 14d is pushed by a jig 20 (shown by a dashed line) as shown in FIG. 3 or a projection 21a of the slider 21 as shown in FIG. As a result, the locking portion 14c can be separated from the contact portion 14f, so that the locking of the terminal portion 16 of the flat cable 15 to the reinforcing layer 18 is released. The flat cable 15 can be easily pulled out from the insertion hole 11.

In FIG. 4, a reinforcing layer 18 is also provided on the conductor 17 side, and they reinforce the flat cable 15 on both sides. Each reinforcing layer 18 is engaged with a step portion of the engaging portion 14c and the contact portion 14f facing each other.

[0013]

As described above, according to the present invention, the terminal of the flat cable can be easily and reliably locked with a simple structure, and the conduction of each connection terminal can be easily checked. Thus, an excellent lock structure for a flat cable connector can be provided. Moreover, the flat cable is locked to the connection terminal,
When electrically connected, the necessary locking force and electrical contact force can be secured by the flat elastic deformation of the connection terminal, so that compared to the conventional elastic deformation in the thickness direction,
The connection terminal does not decrease due to metal fatigue or the like, and becomes stable for a long period of time.

In particular, the locking portion and the contact portion are connected to each other
Housing with elastic deformation independently in the flat direction of the child
Built into the cable, making it a flat cable
On the other hand, a vertical displacement force acts on the flat surface,
As a result, the flat cable is
-Saw movement occurs and the end of the
Even if it is displaced in the direction pressed against the
The locking part and the contact part for any displacement of
Terminal displacement while maintaining the elastic force in the direction of pinching
Between the flat cable conductor and the contact
Electrical contact is maintained, and reinforcement layer at the end
The mechanical locking action of the locking part against
Have been. Therefore, the flat cable movement
Even for electrically stable connection and retaining
Is secured.

[Brief description of the drawings]

FIG. 1 is a front view of an embodiment of a flat cable connector according to the present invention.

FIG. 2 is a plan view of the flat cable connector of FIG. 1;

FIG. 3 is a sectional view showing a state where a flat cable is connected to the flat cable connector of FIG. 2;

4 is a cross-sectional view showing a state where a flat cable is connected to the flat cable connector of FIG. 2 using a slider.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Connector for flat cable 11 Insertion hole 12 Groove 13 Housing 14 Connection terminal 14a Terminal 14b Holding part 14c Locking part 14d Projection 14e Receiving part 14f Contact part 15 Flat cable 16 Terminal part 17 Conducting wire 18 Reinforcement layer 19 Hole 20 Jig 21 Slider 21a Convex part

Claims (1)

(57) [Scope of request for utility model registration] 1. A housing (13) and a plurality of connection terminals.
(14) A flat cable connector (1)
In ( 0) , the housing (13) is open so as to extend along the longitudinal direction of one of the side walls and has a flat cable (1).
5) an insertion hole (11) for receiving the terminal portion (16) ;
Comprising a plurality of grooves (12) in communication with side by side has and the insertion hole (11) at predetermined intervals through the partition wall at the opposite side wall along the longitudinal direction, and each connection terminal (14 ) Are formed by a conductive elastic plate, and each groove of the housing (13) is parallel to a plane perpendicular to the width direction of the flat cable (15).
(12) , and each connection terminal (14) further includes a terminal portion (14a) protruding outside from the housing (13) and the housing (1).
Flat cable inserted in the insertion hole (11) of 3)
A contact portion (14f) that contacts each of the conductive wires (17) exposed at the terminal portion (16) of (15) from one side,
The contact portion opposite from the other side engaging portion granted elasticity toward (14f) (14c), the contact portion from the engaging portion (14c) (14f) extend obliquely to the opposite side has protrusions are a (14d), the locking portion (14c) and a contact portion (14f), the terminal portions
(14a) extending in the direction of the insertion hole (11),
Of the connection terminal (14) inside the connector (13)
Is displaceable by gender deformation, the terminal portion of the flat cable (15) to (16) Haujin
When inserted into the insertion hole (11) of the plug (13).
(16) is sandwiched between the engaging portion (14c) and the contact portion (14f) by the flat elasticity of the connection terminal (14) , and each of the conductive wires exposed at the tip of the terminal portion (16). (1
7) can be brought into contact with the contact portions (14f) , and the reinforcing layer attached to the tip of the terminal portion (16).
The flat cable connector (10) , wherein (18) is locked by a locking portion (14c) by a flat elastic deformation of each connection terminal (14 ) .