JPH06203927A - Connector structure - Google Patents

Abstract

(57) [Abstract] [Purpose] When a holder holding a flexible flat cable is inserted into a housing connector, the contact performance between the elastic connection terminal and the electric wire is prevented from being deteriorated due to the bending of the housing. [Structure] Elastic connection terminal (1
The space between the upper and lower walls (23, 24) of the housing (2)
The holder (30), which is partitioned by 5) and holds the electric wire (40) and is inserted into the housing, has a slit (33) for receiving the entry of the partition wall.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector structure, and more specifically, it is connected to a flexible flat cable (FFC) formed by coating a plurality of flat rectangular conductors arranged in parallel with an insulating resin. Related to the connector structure.

[0002]

2. Description of the Related Art Conventionally, a flexible print cable (FP) formed by baking an electric conductor on a substantially sheet-shaped FFC formed by the above-mentioned structure or a film.
C) enables wiring in a limited space due to its flat structure, and has flexibility, so that it can be applied to a movable part, such as a wire harness for connecting electrical parts for automobiles or , Is widely used in various devices such as computers. In the prior art, the connector connection of these flexible cables is performed by using the conductor 2 as shown in FIG.
A rigid holder 3 is attached to one surface of the end of the cable 1 where the cable 1 is exposed, and an opening formed in the front surface of the connector housing 4 together with the holder 3 in a state where the flexibility of the cable 1 is lost. 5, the conductor 2 is inserted and locked from the rear end side of the connector housing 4 by the spring piece 6a of the elastic connection terminal 6.
Conduction is achieved by pressing. In the figure, reference numeral 7 denotes a holder guide for fixing the cable 1 to the holder 3.
Shows terminal guides for locking the terminals 6 to the connector housing 4, respectively.

[0003]

However, in the above-described conventional connector structure, particularly when the cable (hereinafter, also referred to as an electric wire) has a multi-core structure, the connector is
As shown in FIG. 6, since the connector housing 4 is fitted in a state of covering the entire holder 3, the bending due to the contact pressure between the terminal 6 and the conductor 2 occurs in the central portion of the connector housing 4 and the holder 3, and the terminal 3 The contact performance between 6 and the conductor 2 was deteriorated. Therefore, in order to prevent the occurrence of such bending, it was considered to increase the wall thickness of the housing and strengthen the connector itself so that stable performance can be obtained. However, the material cost, the molding and solidification time of the housing, the weight, and the appearance shape are increased, which is not desirable. Further, in the above-mentioned conventional example, as shown in FIG. 7, the terminals 6 and the conductors 2 are in close contact with each other in an exposed state, so that the flow of water 9 due to the intrusion of water droplets easily causes a leak current. The present invention is
The present invention has been made in view of the above circumstances, and provides a connector structure that has a good connection between a flexible and substantially sheet-shaped electric wire and an elastic connection terminal, and that can also prevent the occurrence of leakage current. Especially.

[0004]

That is, the above object of the present invention is to provide a conductor for an electric wire, which is formed in a substantially sheet shape by insulatingly coating a plurality of conductors arranged in parallel with each other at a predetermined interval. A connector structure in which an exposed end portion is fitted into an opening portion of a connector housing and is brought into pressure contact with a plurality of elastic connection terminals accommodated in the housing to connect the conductor, and the conductor structure is attached to the electric wire. And a holder in which a slit is formed between the exposed conductors to hold the electric wire, and a partition for partitioning each elastic connection terminal in the housing and engaging with the slit when the holder is fitted into the opening. This is achieved by a connector structure including the connector housing formed in communication with each other.

[0005]

In the electric wire, a gap is formed between the conductors, while on the other hand, the holder is formed with a slit corresponding to the gap and for receiving a partition for partitioning the elastic connection terminals. Can be inserted into the connector housing through the opening. Further, since the elastic connection terminals are partitioned by the partition wall, it is possible to prevent the flow of water droplets and prevent the generation of leakage current.

[0006]

EXAMPLES Examples of the present invention shown in FIGS. 1 to 4 will be described below. 1 is an exploded perspective view showing an embodiment of the connector structure of the present invention, and FIG. 2 is a perspective view of the holder shown in FIG. 1 viewed from the back side. Also, FIG.
FIG. 4 is a sectional view taken along the line AA of FIG. 1, and FIG. 4 is an enlarged view of a main part indicated by a circular frame B of FIG.

The connector structure of this embodiment holds a connector housing 20 into which a plurality of elastic connection terminals 10 (only one is shown in FIG. 1) are inserted and locked, and an electric wire 40 described later. In addition, the connector housing (hereinafter, simply referred to as a housing) 20 includes a holder 30 that can be inserted into an opening 21 formed in the front surface of the connector housing 20. The housing 20 is formed of an insulating resin material in a substantially rectangular shape, and has a terminal accommodating chamber 2 for accommodating a plurality of elastic connection terminals 10 inserted from the rear end side.
2 is provided. That is, the terminal accommodating chambers 22 are partitioned from each other by the partition walls 25 that connect the upper wall 23 and the lower wall 24 of the housing 20 to each other. It is in communication with.

The elastic connection terminal 10 is provided in the same manner as the conventional structure, and the round electric wire 11 connected to another device is pressure-connected and inserted into the housing 20.
The locking portion 10a is engaged with a step stop portion (not shown) in the terminal accommodating chamber 22 and is fixed in the housing 20. As the electric wire 40, a substantially sheet-shaped flexible flat cable in which a plurality of rectangular conductors 41 arranged in parallel with each other with a predetermined interval are covered with insulating resin 42 from both surfaces is applied, and the elastic connection terminal 10 and At the end portion 43 for connection, the conductor 41 is exposed by removing the resin 42. Therefore, in the conductor exposed portion, the gap 44 provided between the adjacent conductors is formed. The conductor 41 has a tip portion 41a formed in a slightly bent shape in order to ensure good engagement with the terminal 10 when the electric wire 40 is inserted into the housing.

The holder 30 is provided such that the front half portion 30a of the holder 30 can be inserted into the housing from the opening 21 of the housing 20 while holding the electric wire 40. The holder structure will be further described with reference to FIG. 2. In the holder 30, the entire rear surface of the rear half 30b of the holder 30 is formed as the opening / closing wall 31, and the insertion portion 32 through which the electric wire 40 is inserted. Is formed. Further, the holder 30 is opened so that one surface of the electric wire 40 inserted from the insertion portion 32 in the front half portion 30 is exposed. In the holder 30 having such a configuration, the electric wire 40 is inserted through the insertion portion 32 and fixed by adhesion or the like, and the opening / closing wall 31 is rotated in the direction of the arrow P to be closed, whereby the electric wire 40 has a double structure. Can be fixedly held, and the intrusion of water droplets flowing along the electric wire 40 and flowing into the holder 30 can be prevented.

Further, in the front half portion 30a of the holder 30, a slit 33 having a size and a depth substantially matching the gap 44 is formed at a position corresponding to the gap 44 formed between the conductors of the electric wire 40. The slit 33 allows the partition wall 25 to enter when the holder 30 is fitted into the opening 21. That is, since the slit 33 is formed, the holder 30
Is the electric wire 4 fitted and held in the opening 21.
0 can be pressed against the spring piece 10b of the terminal 10. In addition,
In the front half portion 30a of the holder 30, a tapered surface 3 whose inner wall surface side can be in close contact with the tip portion 41a of the conductor 41
4 and the tapered surface 34 abuts the terminal 10 when engaging with the terminal 10, so that the conductor 41 can be favorably guided to the spring piece 10b.

Further, the holder 30 has lock pieces 3 on both sides thereof, the free ends of which extend toward the rear side of the housing and are elastically deformed.
5, the locking projection 35a formed on the lock piece 35
Is engaged with an engagement hole 27 formed in the side wall 26 of the housing 20, and is permanently coupled to the housing 20. The holder 30 is provided with a rib 36 on the outer surface of the upper and lower walls 23 and 24 and at a position dividing the front half 30a and the rear half 30b.
When the holder 30 is inserted into the opening 21, the position of the holder 30 can be regulated by abutting the edge of the opening 21.

The connector constructed as described above is provided with the electric wire 4
The holder 30 holding 0 is the opening 21 of the housing 20.
When the slit 33 passes through the partition wall 25 between the terminal accommodating chambers, the conductor 41 exposed on the back surface side of the holder presses the spring piece 10b of the terminal 10 to make a connection as shown in FIG. To be In the connector thus configured, as shown in a further enlarged view in FIG. 4, since the upper and lower wall surfaces of each terminal accommodating chamber forming the housing 20 are connected by the partition wall 25, the holder 30 and the terminal 10 are connected. The bending of the housing 20 due to the influence of the contact pressure with can be prevented, and the leakage current can be prevented by blocking the flow of water droplets between the contact portions of the holder 30 and the terminal 10. In the above embodiments, a flexible flat cable is applied as an electric wire, but the present invention is not limited to this. For example, a flexible printed cable formed by baking a conductor on a film can also be applied. Of course.

[0013]

As described above, according to the connector structure of the present invention, the partition wall for partitioning the terminal housing chambers of the connector housing is continuously provided between the upper wall and the lower wall of the housing. Therefore, it is possible to prevent the bending of the housing caused by the contact pressure of the terminal accompanying the insertion of the holder. In addition, since the partition walls are completely partitioned by the partition walls and the contact portions between the adjacent terminals and the conductor are not exposed, it is possible to prevent the generation of leakage current due to leakage.

[Brief description of drawings]

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

FIG. 2 is a perspective view of the holder in FIG. 1 viewed from the back side.

3 is a cross section taken along the line AA of FIG.

FIG. 4 is an enlarged view of a portion indicated by a circular frame B in FIG.

FIG. 5 is an exploded perspective view of a connector for explaining a conventional example.

6 is a cross-sectional view taken along the line AA of FIG.

FIG. 7 is an enlarged view showing a part of FIG.

[Explanation of symbols]

 10 elastic connection terminal 20 connector housing 21 opening 22 terminal accommodating chamber 25 partition wall 30 holder 31 opening / closing wall 32 insertion portion 33 slit 34 taper surface 35 lock piece 40 electric wire 41 conductor 42 insulating resin 43 end portion 44 gap

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[Procedure amendment]

[Submission date] June 10, 1993

[Procedure Amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0008

[Correction method] Change

[Correction content]

The elastic connection terminal 10 is provided in the same manner as the conventional structure, and the round electric wire 11 connected to another device is pressed.
By connecting them to the housing 20 and inserting them into the housing 20,
The locking portion 10a is engaged with a step stop portion (not shown) in the terminal accommodating chamber 22 and is fixed in the housing 20. As the electric wire 40, a substantially sheet-shaped flexible flat cable in which a plurality of rectangular conductors 41 arranged in parallel with each other with a predetermined interval are covered with insulating resin 42 from both surfaces is applied, and the elastic connection terminal 10 and At the end portion 43 for connection, the conductor 41 is exposed by removing the resin 42. Therefore, in the conductor exposed portion, the gap 44 provided between the adjacent conductors is formed. The conductor 41 has a tip portion 41a formed in a slightly bent shape in order to ensure good engagement with the terminal 10 when the electric wire 40 is inserted into the housing.

Claims (1)

[Claims] 1. An end portion of an electric wire, which is formed in a substantially sheet shape by insulatingly coating a plurality of conductors arranged in parallel at a predetermined distance from each other, with an exposed end portion of the conductor being an opening portion of a connector housing. A connector structure for connecting the conductor by being pressed into contact with a plurality of elastic connection terminals accommodated in the housing and held in the housing, and which holds the electric wire and holds the electric wire and corresponds between exposed conductors. A holder having a slit formed therein, and the connector housing having a partition wall which communicates with the opening and which partitions the elastic connection terminals in the housing and engages with the slit when the holder is fitted. Connector structure characterized by.