JP4071941B2 - Flat cable perforated plate terminal - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a flat cable perforated plate terminal that is connected to a flat cable in which a film conductor is applied to a relatively narrow strip-shaped conductor portion, which is used for, for example, electrical wiring of an electric device or an automobile.
[0002]
[Prior art]
Conventionally, as the terminal of the electric wire for grounding that connects the housing and body of an electric device or automobile and the wire harness, a perforated plate terminal that does not require a housing, has high cost performance, and can be securely connected by screw tightening etc. Is used. In addition, this perforated plate terminal is defined as 0.6 to 1.2 mm (corresponding to 0.5 to 15 sq electric wire) depending on the thickness of the applicable electric wire (usually mmsq is used as the electric wire name). Yes. Conventionally, this perforated plate terminal has been used by caulking an electric wire of 0.5 sq or more. However, a flat cable perforated plate terminal that can be connected to a flat cable recently used for a harness is disclosed in JP-A-10-269857. It is disclosed as No.
[0003]
[Problems to be solved by the invention]
Conventionally, when connecting with a flat cable with a crimp piece with a minimum thickness of about 0.6 mm specified by a perforated plate terminal due to tightening strength, etc., it is applied to a flat cable with a flat conductor width of 3 mm or more. The small crimp width is unavoidable for flat cables with narrow conductors of thickness 0.15 mm and width 1.5 to 2.0 mm, which are recently required for high-density electrical circuits that are particularly demanding technically. Therefore, it is impossible to form a crimp piece with a plate thickness of about 0.6 mm, and the plate thickness must be reduced to about 0.3 mm.
[0004]
In order to form a crimp piece for conductive connection of a flat cable with the other end of the perforated plate terminal having a specified thickness of 0.6 mm as a plate thickness of about 0.3 mm, the end of the perforated plate terminal is rolled or There is also a method of cutting and forming a crimp piece as a necessary plate thickness, but such a method has a problem that it has many processing steps and is expensive.
[0005]
An object of the present invention is to provide a flat cable hole that can be manufactured at a low cost with a structure in which a perforated plate terminal portion has a specified plate thickness and a crimp piece is formed with a plate thickness thinner than the specified plate thickness. To provide perforated board terminals.
[0006]
[Means for Solving the Problems]
The present invention provides a flat cable hole having a neck portion with a thickness of t integrally formed in a part of the perforated plate terminal portion in the circumferential direction, and a plurality of crimp pieces projecting from both sides of the neck portion in the width direction. The board terminal is improved.
[0007]
In the perforated plate terminal for a flat cable according to the present invention, the perforated plate terminal portion includes a perforated plate terminal substrate portion having a thickness t continuous to the neck portion, and a connection having a thickness t to the perforated plate terminal substrate portion. It consists of a perforated plate terminal extension plate portion having a thickness t, which is continuous through the pieces and is folded at the connecting piece and overlapped with the perforated plate terminal substrate portion. The perforated plate terminal extension plate portion is integrally provided with an extension neck portion that overlaps the end portion of the neck portion existing on the perforated plate terminal portion side, and the end portion of the neck portion existing on the perforated plate terminal portion side and the extended neck portion Are connected to each other by a connecting member projecting from either of them. In the perforated plate terminal for flat cable according to the present invention, the thickness of the perforated plate terminal portion is twice the thickness t of the neck portion.
[0008]
According to such a structure, if the perforated plate terminal portion is formed with a specified plate thickness, the neck portion is formed with a plate thickness that is 1/2 of the specified plate thickness. Small crimp pieces can be easily formed on the side. Such flat cable perforated plate terminals can be formed at a low cost because they can be formed by using a metal plate with a thickness of 1/2 of the specified plate thickness required for the perforated plate terminal. it can.
[0009]
In this case, when the perforated plate terminal board portion and the perforated plate terminal extension plate portion are connected to each other by the connecting member, the overlapped perforated plate terminal substrate portion and the perforated plate terminal extension plate portion are It can prevent shifting.
[0010]
In particular, as in the present invention, an extended neck portion that overlaps the end portion of the neck portion existing on the perforated plate terminal portion side is provided integrally with the perforated plate terminal extension plate portion, and the end of the neck portion existing on the perforated plate terminal portion side When the connection portion and the extension neck portion are connected to each other by a connecting member projecting from either of them, it is possible to reliably prevent the overlapping portion of the perforated plate terminal board portion and the perforated plate terminal extension plate portion from moving. be able to.
[0011]
Further, when the connecting member is projected from either the perforated plate terminal board portion or the perforated plate terminal extension plate portion, the perforated plate terminal board portion and the perforated plate terminal extension plate portion Can be molded together at the time of molding, and cost increase can be suppressed.
[0012]
In addition, if insulation barrels are projected on both sides in the width direction of the end of the neck opposite to the side where the perforated plate terminal is present, it can be molded together at the time of molding the neck. Can be suppressed. By gripping the flat cable with this insulation barrel, it is possible to prevent stress from being concentrated on the crimp piece and to prevent the conduction by the crimp piece from being impaired.
[0013]
Furthermore, when a plurality of anti-rotation projection pieces are projected from either the perforated plate terminal board portion or the perforated plate terminal extension plate portion of the perforated plate terminal portion, the anti-rotation projection pieces are attached to the perforated plate terminal portion. The holed plate terminal portion can be positioned and prevented from rotating by being inserted into the hole of the terminal block to be attached.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
1 and 2 (A) and 2 (B) show a first example of an embodiment of a flat cable perforated plate terminal according to the present invention, and FIG. 1 shows a flat cable perforated plate terminal of this example. FIG. 2A and FIG. 2B are a front view and a side view of the flat cable perforated plate terminal of this example.
[0015]
In the flat cable perforated plate terminal 1 of this example, a neck portion 4 having a crimp width w is integrally provided on a part of the perforated plate terminal portion 3 in which the hole 2 is formed, and the width direction of the neck portion 4 is provided. A plurality of crimp pieces 5 projecting on both sides of the plate, and insulation barrels 6 projecting on both sides in the width direction of the end of the neck 4 opposite to the side on which the perforated plate terminal portion 3 exists. It has become. Each crimp piece 5 is raised in a direction orthogonal to the plate surface of the neck portion 4 as shown in FIGS.
[0016]
The perforated plate terminal portion 3 includes a perforated plate terminal substrate portion 3A having a thickness t continuous with a neck portion 4 having a crimp width w and a thickness t, and a connecting piece having a thickness t on the perforated plate terminal substrate portion 3A. 7 is formed of a perforated plate terminal extension plate portion 3B having a thickness t which is bent at the connecting piece 7 and overlapped with the perforated plate terminal substrate portion 3A. For this reason, the thickness of the perforated plate terminal portion 3 is twice the thickness t of the neck portion 4, that is, 2t.
[0017]
The perforated plate terminal extension plate portion 3B is integrally provided with an extension neck portion 8 which is overlapped with the end portion of the neck portion 4 existing on the perforated plate terminal portion 3 side, and the neck portion 4 existing on the perforated plate terminal portion 3 side is provided. The end portion and the extended neck portion 8 are connected to each other by bending the connecting member 9 formed of a protruding piece protruding from both sides of the neck portion 4 in the width direction and holding the extended neck portion 8. The connecting member 9 may protrude from both sides of the extended neck 8 in the width direction.
[0018]
From the outer periphery of the perforated plate terminal extension plate portion 3B, three non-rotating projection pieces 10 are provided at equal intervals in the circumferential direction, and the perforated plate terminal overlapped with the perforated plate terminal extension plate portion 3B. The perforated plate terminal board 3A is positioned by being bent toward the board 3A. Each anti-rotation projection piece 10 is inserted into each hole of a terminal block (not shown) on which the perforated plate terminal portion 3 is overlapped so as to prevent the perforated plate terminal portion 3 from rotating.
[0019]
The anti-rotation projection piece 10 may protrude from the perforated plate terminal board portion 3A. In this example, the number of the anti-rotation projection pieces 10 is three, but the present invention is not limited to this.
[0020]
Such a flat cable perforated plate terminal 1 is formed by punching, for example, a brass material having a thickness t into a shape as shown in FIG.
[0021]
3A, 3B, and 3C show a state in which a flat cable is connected to the flat cable perforated plate terminal of the first example of the present invention. FIG. 3A is a front view, and FIG. (A) AA sectional view taken on the line, (C) is a perspective view.
[0022]
In this example, the flat cable perforated plate terminal 1 of this example shown in FIGS. 2 (A) and 2 (B) has a thickness t = 0.3 mm and a crimp width w = 1.2 mm. As shown in FIGS. 3 (A) to 3 (C), an insulation coating made of a polyethylene film is formed on a relatively narrow strip-shaped conductor portion 11 having a thickness of 0.15 mm and a width of 1.5 mm on a plurality of crimp pieces 5 provided. 12, a flat cable 13 having a thickness of 0.33 mm and a width of 3.9 mm is placed, and each crimp piece 5 is pierced through the flat cable 13 to be conductive, and the flat cable 13 is connected with the insulation barrel 6. It has a gripped structure.
[0023]
FIG. 4 is a plan view showing a state in which the flat cable 13 is connected to the flat cable perforated plate terminal 1 of the second example of the present invention.
[0024]
This example shows an example of a flat cable perforated plate terminal 1 used in a place where space is relatively limited. A double aligned perforated plate terminal portion 3 is provided on an extension of the crimp width w. In addition, the flat cable 13 is freely bent to form a circuit.
[0025]
FIG. 5 is a plan view showing a state where the flat cable is connected to the flat cable perforated plate terminal 1 of the third example of the present invention.
[0026]
This example shows an example of the flat cable perforated plate terminal 1 laid in the wiring groove 15 of the side wall 14, and the double-matched perforated plate terminal portion 3 is rectangular.
[0027]
In the above example, a plurality of anti-rotation projection pieces 10 are provided to prevent the perforated plate terminal portion 3 from rotating on the terminal block or the like. However, the anti-rotation projection pieces 10 are omitted, and holes are used instead of the anti-rotation projection pieces 10. A connecting member that connects the perforated plate terminal board portion 3A and the perforated plate terminal extension plate portion 3B to each other can also be provided at the same location.
[0028]
【The invention's effect】
In the perforated plate terminal for a flat cable according to the present invention, the perforated plate terminal substrate portion having the perforated plate terminal portion continuous with the neck portion, and the perforated plate terminal substrate portion continuing to the perforated plate terminal substrate portion. Since the perforated plate terminal portion is formed with a specified plate thickness, the neck is half the specified plate thickness. As a result, a small crimp piece can be easily formed on the neck side. Such flat cable perforated plate terminals can be formed using a metal plate having a plate thickness that is 1/2 of the specified plate thickness required for the perforated plate terminal, so that it can be produced at low cost. it can.
[0029]
In addition, if the perforated plate terminal board part and the perforated board terminal extension plate part are connected to each other by a connecting member, the stacked perforated board terminal board part and the perforated board terminal extension plate part are displaced. It can be prevented from moving.
[0030]
Further, when the connecting member is projected from either the perforated plate terminal board portion or the perforated plate terminal extension plate portion, the perforated plate terminal board portion and the perforated plate terminal extension plate portion Can be molded together at the time of molding, and cost increase can be suppressed.
[0031]
In addition, if insulation barrels are projected on both sides in the width direction of the end of the neck opposite to the side where the perforated plate terminal is present, it can be molded together at the time of molding the neck. Can be suppressed. By gripping the flat cable with this insulation barrel, it is possible to prevent stress from being concentrated on the crimp piece and to prevent the conduction by the crimp piece from being impaired.
[0032]
Also, an extended neck that overlaps the end of the neck existing on the perforated plate terminal portion side is provided integrally with the perforated plate terminal extension plate, and the end of the neck existing on the perforated plate terminal portion side and the extended neck are When the connecting members projecting from either of these are connected to each other, it is possible to reliably prevent the overlapping portion of the perforated plate terminal board portion and the perforated plate terminal extension plate portion from moving.
[0033]
Furthermore, when a plurality of anti-rotation projection pieces are projected from either the perforated plate terminal board portion or the perforated plate terminal extension plate portion of the perforated plate terminal portion, the anti-rotation projection pieces are attached to the perforated plate terminal portion. The holed plate terminal portion can be positioned and prevented from rotating by being inserted into the hole of the terminal block to be attached.
[Brief description of the drawings]
FIG. 1 is a developed view showing a first example of an embodiment of a flat cable perforated plate terminal according to the present invention.
FIGS. 2A and 2B are a front view and a side view of a flat cable perforated plate terminal of this example.
FIGS. 3A and 3B show a state in which a flat cable is connected to a flat cable perforated plate terminal of the first example of the present invention, in which FIG. 3A is a front view, and FIG. 3B is an AA line of FIG. Sectional drawing and (C) are perspective views.
FIG. 4 is a plan view showing a second example of the embodiment of the flat cable perforated plate terminal according to the present invention.
FIG. 5 is a plan view showing a third example of the embodiment of the flat cable perforated plate terminal according to the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Flat cable perforated board terminal 2 Hole 3 Perforated board terminal part 3A Perforated board terminal board | substrate part 3B Perforated board terminal extension board part 4 Neck part 5 Crimp piece 6 Insulation barrel 7 Connection piece 8 Extension neck part 9 Connection member 10 Non-rotating protrusion 1
11 Strip-shaped conductor 12 Insulation coating 13 Flat cable 14 Side wall 15 Wiring groove

Claims (3)

In a flat cable perforated plate terminal in which a neck portion having a thickness of t is integrally provided on a part of the perforated plate terminal portion in the circumferential direction, and a plurality of crimp pieces project from both sides of the neck portion in the width direction.
The perforated plate terminal portion is continuous to the neck portion with a perforated plate terminal substrate portion having a thickness t, and is connected to the perforated plate terminal substrate portion via a connecting piece having a thickness t. By the way, it is composed of a perforated plate terminal extension plate portion having a thickness t that is folded and overlapped with the perforated plate terminal substrate portion,
The perforated plate terminal extension plate portion is integrally provided with an extended neck portion that is overlapped with the end portion of the neck portion existing on the perforated plate terminal portion side ,
The end portion of the neck portion present on the perforated plate terminal portion side and the extended neck portion are connected to each other by a connecting member protruding from either of them,
The thickness of the perforated plate terminal portion is twice the thickness t of the neck portion;
Perforated plate terminal for flat cable. 2. The flat cable hole according to claim 1, wherein insulation barrels are provided on both sides in the width direction of the end of the neck opposite to the side where the perforated plate terminal is present. Perforated board terminal. 3. A plurality of detent projections projecting from either the perforated plate terminal substrate portion or the perforated plate terminal extension plate portion of the perforated plate terminal portion. Perforated plate terminal for flat cable as described in 1.

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