JP2589106Y2 - 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, and more particularly to a connector for connecting a round conductor tape wire and a fork-shaped terminal to improve the reliability of connection with a round conductor having a small contact area. .

[0002]

2. Description of the Related Art Recently, as shown in FIGS. 6 (A) and 6 (B), there is provided a round conductor tape wire 3 in which round conductors 2 are juxtaposed at a predetermined interval on the upper surface of a flexible insulating sheet 1. FIG. ing. The round conductor 2 has the advantage that the diameter D can be set to about 0.1 mm to achieve ultra-thin wires, and the pitch P can be set to about 0.8 mm to achieve a narrow pitch. is there.
For this reason, the round conductor tape wire 3 is suitably used as an internal wiring material for which home appliances such as VTRs and video cameras, OA equipment and the like are desired to be light and thin.

[0003] As this kind of flexible cable,
In addition to the above round conductor tape wire, flexible flat cable (FFC), flexible printed cable
A circuit (FPC) is provided. However,
In the FFC, since the conductor is extruded flat, the conductor cannot be bent, and the conductor can form only a straight line parallel wiring. On the other hand, FPCs can be freely wired because they are manufactured by using a mold, but there are problems that the manufacturing of the mold is costly and that the shape of the mold is difficult to change. On the other hand, the round conductor tape wire has an advantage that it can be bent and the wiring can be easily changed.

A connector for connecting the above-mentioned flexible cable to a fork-shaped terminal usually has a structure shown in FIG. That is, a large number of terminal receiving holes 6 arranged side by side in the insulating housing 5
While the flat flexible cable 9 and the slide member 8 are inserted between the contact piece 7a and the positioning piece 7b of the terminal 7, and the flexible cable 9 is pushed by the pressing portion 8a of the slide member 8 to the contact piece 7a side. Pressing to.

[0005]

When the round conductor tape wire 3 shown in FIG. 5 is used as the flexible cable 9,
As described above, there is an advantage that the bending can be performed and the wiring can be easily changed, but there is a problem that a connection failure easily occurs between the terminal 7 and the round conductor 2.
That is, although the round conductor 2 and the contact piece 7a of the terminal 7 are in point contact, the diameter of the round conductor 2 is extremely small as described above, and the width of the contact portion of the contact piece 7a with the round conductor 2 is
Since the thickness of the terminal 7 remains the same, the contact area of the round conductor 2 is small. For this reason, if there is any deviation in the pitch between the juxtaposed round conductors 2 and the terminals 7 or if the pitch varies, a connection failure will occur.

[0006] The present invention has been made in view of the above-mentioned problems, and ensures contact with a conductor of a flexible cable, thereby enhancing the reliability of connection even with a round conductor having a small contact area. The purpose is to do so.

[0007]

That is, in the present invention, the contact piece and the positioning piece protrude substantially in parallel in the same direction from the connecting piece in a substantially fork shape, and the lower end of the contact piece is alternately arranged in the width direction. A terminal provided with a contact portion having a surface area approximately twice as large as the plate thickness formed by the projection and a terminal receiving hole into which the terminal is inserted through an axial opening and one end opening is inserted. Many are juxtaposed,
Each terminal receiving hole is vertically divided by a middle wall into a contact piece hole into which a contact piece of the terminal is inserted and a positioning piece hole into which a positioning piece is inserted, and the contact piece hole is wide enough to allow the contact portion to be inserted. On the other hand, an insulating housing with a narrow positioning hole and a super-fine wire of about 0.1 mm
mm at a pitch of about mm, the round conductor tape wire inserted between the contact piece and the positioning piece of the terminal from the other end opening of the terminal receiving hole, the round conductor tape wire and the positioning piece And a slide member inserted between the contact pieces to press the round conductor tape electric wire to elastically contact the ultra-fine wire at the center position of the contact portion of the contact piece.

[0008]

[0009]

As described above, in the connector of the present invention, the contact portion is provided at the tip of the contact piece of the terminal, and the area of the contact portion is set large. Can be reliably connected.

In the connector according to the present invention, the contact hole is made wide so that the contact portion can be inserted, while the positioning hole is made narrow. Positioned.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to embodiments shown in the drawings. In FIG. 1, reference numeral 10 denotes a housing integrally formed of an insulating resin, 11 denotes a fork-shaped terminal formed by punching a conductive metal plate (copper alloy or the like) having a uniform thickness, and 12 denotes a slide integrally formed of an insulating resin. As a member, a round conductor tape electric wire 3 shown in FIG. 5 is used as a flexible cable connected to the terminal 11.

The housing 10 has a large number of terminal receiving holes 15 arranged in a horizontal direction inside thereof, and upper and lower partitions 16 that partition the terminal receiving holes 15 extend from the terminal insertion side X to a substantially central portion in the axial direction. Have been Also,
On the terminal insertion side X of each terminal receiving hole 15, a horizontal intermediate wall 19 that divides the terminal receiving hole 15 into two upper and lower stages is provided. The intermediate partition wall 19 divides the terminal receiving hole 15 into two upper and lower contact holes 17 and a positioning hole 18 penetrating from the terminal insertion side X to the round conductor tape wire 3 and the slide member insertion side Y. .

The upper and lower bulkheads 16 are formed such that the upper portion 16b of the side surface 16a is concave, and the width W1 of the contact hole 17 is wider than the width W2 of the positioning hole 18. The width W1 of the contact piece hole 17 is set to be larger than the width W3 of the contact portion 24 provided at the tip of the contact piece 20 of the terminal 11 described later so that the contact piece 20 can be inserted.
On the other hand, the width W2 of the positioning piece hole 18 is the same as that of the terminal 1
1 is set substantially equal to the plate thickness t, and the positioning piece 21 of the terminal 11 inserted into this portion is used for the terminal 11.
Is positioned in the horizontal direction.

As shown in the figure, the fork-shaped terminal 11 connects a contact piece 20 and a positioning piece 21 composed of upper and lower arms projecting in the same horizontal direction and parallel to each other, and connects the contact piece 20 and one end of the positioning piece 21. The connecting portion 22 includes a vertical connecting portion 22 and a lead piece 23 projecting in the horizontal direction on the opposite side from the lower end of the connecting portion 22.

FIGS. 2A and 2B show the tip of the contact piece 20.
As shown in detail, the lower portion is alternately stamped out on both sides in the width direction to provide a pair of projections 24a and 24b, and the projections 24a and 24b form a wide contact portion. In the present embodiment, the width W3 of the contact portion 34 is set so that the surface area is about twice as large as when the plate thickness t of the terminal 11 is kept.

The contact piece 20 is made to project slightly upward from the connecting portion 22 and then slightly downward toward the distal end. On the other hand, the lower positioning piece 21 has two first protrusions 25 and a second protrusion 26 protruding in a saw-tooth shape at the center of the upper surface side. The height of the second protrusion 26 is set higher than that of the first protrusion 25.

The slider 12 is inserted into the housing 10 from the Y side opposite to the terminal insertion side.
At both ends in the longitudinal direction of the substrate portion 27, holding portions 29 for the housing 10 are integrally provided. The holding portion 29 is locked and held at a temporary locking position and a full locking position with respect to mounting portions 30 formed on both longitudinal side surfaces of the housing 10. The pressing portion 28 is formed of a long thin plate, and is inserted between the contact piece 20 of each terminal 11 and the positioning piece 21 from the opening side of the terminal receiving hole 15 communicating in the horizontal direction,
The round conductor tape electric wire 3 is pressed on the upper surface side to make the round conductor 2 elastically contact the contact portion 34 of the contact piece 20.

The connector is assembled in the order shown in FIG. 3. First, the terminal 11 is inserted into each terminal receiving hole 15 of the housing 10. At this time, the contact piece 20 of the terminal 11 is inserted into the contact piece hole 17 and the positioning piece 21.
Is inserted into the positioning piece hole 18 from the X side.

When the terminal is inserted, on the positioning piece 21 side, the first projection 25 is press-fitted while sliding on the lower surface of the intermediate wall 19, and then the second projection 26 is flush with the surface on which the first projection 25 is in sliding contact. Is pressed in while sliding. Since the height of the second protrusion 26 is set higher than the height of the first protrusion 25 as described above, the second protrusion 26 is pressed against the intermediate wall 19 and the terminal 11 is reliably positioned at a predetermined position in the housing 10. Will be retained.

Next, the slide member 12 is connected to the housing 1.
0 from the Y side, and temporarily hold the holding portion 29 to the mounting portion 30. In this temporarily locked state, the round conductor tape wire 3 is moved along the upper surface of the pressing portion 28 of the slide member 12 into the housing 10.
Is inserted between the contact piece 20 and the positioning piece 21 of the terminal 11 located inside the terminal 11.

Then, the slide member 12 is pushed to the final locking position. By this pushing, the linear upper surface of the pressing portion 28 of the slide member 12 is moved to the contact portion 34 at the tip of the contact piece 20.
And the round conductor 2 of the round conductor tape wire 3
Is brought into elastic contact with the contact portion 34. At this time, Terminal 1
As described above, the first contact portion 34 is formed by alternately stamping out the lower portion of the contact piece 20 and has a surface area nearly double the plate thickness, so that the contact surface with the round conductor 2 is increased. Therefore, even if the position of the round conductor 2 is shifted by about 0.2 to 0.5 mm, the round conductor 2 can be brought into contact with the contact portion 34.

The present invention is not limited to the above embodiment, and various modifications are possible. For example, in the above embodiment, the contact piece 20
A pair of projections 24a, 2
Although the contact portion is formed by 4b, the configuration of the contact portion is not limited to this. For example, the number of the protrusions 24 may be increased.

FIG. 5 shows a reference example.
At the time of press forming of the contact piece 1 ′, as shown by a two-dot chain line in FIG.
A bent portion 35 having the same shape as a ′ is projected and punched out, and the bent portion 35 is bent and pressed so as to be adjacent to the width direction of the distal end portion 11a, and integrated with the distal end portion 11a. To form a contact portion 34 '.

[0024]

As is apparent from the above description, in the connector according to the present invention, projections are formed by alternately projecting the lower end of the contact piece of the terminal, and the projection forms a large-area contact portion. Therefore, even if the position of the round conductor of the round conductor tape wire is slightly displaced, it can be brought into contact.

Therefore, according to the present invention, the connector can improve the contact property with respect to a round conductor having a smaller contact area as compared with a flat-type conductor, thereby improving the reliability of the connector.

[Brief description of the drawings]

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

FIG. 2 shows the terminal shown in FIG. 1 in detail, (A) is a front view, (B) is a plan view, and (C) is a sectional view.

FIG. 3 is a cross-sectional view showing a process of assembling the connector.

FIG. 4 is a perspective view showing an assembled state of the connector.

FIG. 5 is a perspective view showing a modification of the present invention.

FIG. 6 shows a round conductor tape wire, (A) is a plan view,
(B) is a sectional view.

FIG. 7 is a sectional view of a conventional connector.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Insulating film 2 Round conductor 3 Round conductor tape wire 10 Housing 11 Terminal 12 Slide member 15 Terminal receiving hole 17 Contact piece hole 18 Positioning piece hole 19 Intermediate wall 20 Contact piece 21 Positioning piece 22 Connecting piece 23 Lead piece 24 Contact part 25 Contact part 25 One protrusion 26 Second protrusion 28 Pressing part 34, 34 'Contact part

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-59-114776 (JP, A) JP-A 4-112480 (JP, U) JP-A 4-106880 (JP, U) (58) Investigation Field (Int.Cl. ⁶ , DB name) H01R 13/11 H01R 13/64 H01R 23/66 H01R 23/68

Claims (1)

(57) [Scope of request for utility model registration] The contact piece and the positioning piece project substantially parallel to each other in the same direction from the connecting piece, and the lower end of the contact piece is alternately punched out in the width direction to form a projection.
A terminal provided with a contact portion having a surface area about twice as large as the plate thickness composed of these projections, and a large number of terminal receiving holes penetrating in the axial direction and being inserted into the terminal from one end opening thereof, Each terminal receiving hole is vertically divided by an intermediate wall into a contact piece hole into which the contact piece of the terminal is inserted and a positioning piece hole into which the positioning piece is inserted, and the contact piece hole is wide enough to allow the contact portion to be inserted. On the other hand, an insulating housing having a narrow positioning piece hole, an ultra-fine wire of about 0.1 mm is juxtaposed at a pitch of about 0.8 mm, and a contact piece of the terminal from the other end opening of the terminal receiving hole. A round conductor tape wire inserted between the positioning piece, and a round conductor tape wire inserted between the round conductor tape wire and the positioning piece, presses the round conductor tape wire, and places the ultrafine wire at the center of the contact portion of the contact piece. Connector and a slide member to elastically contact with the location.