JP2973896B2 - Connection members for circuit conductors on flat conductor wiring boards - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and a member for connecting circuit conductors of a flat conductor wiring board such as an FPC (flexible printed circuit) mounted on a vehicle body or an electric device. covered by the film, to connect member to connect a plurality of circuits between conductors disposed over the extending direction of the insulating film.

[0002]

2. Description of the Related Art In recent years, a so-called flexible printed circuit in which a thin insulating film is covered with a circuit conductor made of a thin copper plate or the like.
2. Description of the Related Art Flat-type conductor wiring boards made of circuits (hereinafter simply referred to as FPCs) are frequently used, and since this FPC is very thin in shape, it is difficult to arrange it in a very narrow space in the width direction. It is very suitable, and is usually attached to a vehicle body panel or the like while being fixed to the protector.

[0003] As this type of conventional FPC, for example,
The one shown in FIG. 4 is known. In FIG.
Reference numerals 1 and 2 denote FPCs. The FPCs 1 and 2 are printed with a plurality of circuit conductors 3 and 4 made of a thin copper plate or the like forming a conductor pattern on the insulating films 1a and 2a, and have insulating films 1b and 2b is coated.

When connecting the circuit conductors 3 and 4 of the FPCs 1 and 2, the FPCs 1 and 2 are overlapped so that desired regions of the circuit conductors 3 and 4 overlap with each other, and then the metal pins 5 are connected. It is known that the connection operation between the circuit conductors 3 and 4 can be easily performed by ultrasonically welding the metal pins 5 and the desired regions of the circuit conductors 3 and 4 after penetrating the desired area (for example, for example). JP-A-5-11024
No. 6).

[0005]

However, in such FPCs 1 and 2, the circuit conductors 3 and 4 of the opposing FPCs 1 and 2 can be connected to each other. Circuit conductors 3 or circuit conductors 4
There was no way to connect them. For example, as shown in FIG. 5, a plurality of circuit conductors 8a to 8d are
9b, with a connector 10 at each end.
In the case of the FPC 9 on which the
And the circuit conductor 8d to connect the circuit conductor 8d and the connector 1
The 0 and 11 sides could not be electrically connected.

[0006] The present invention, it is possible to connect the circuit between conductors of the same flat conductive wiring boards, flat which can be attached to flat conductor wiring board to the other side member, such as a vehicle body and an electric equipment It is an object of the present invention to provide a connection member for a circuit conductor of a conductor wiring board.

[0007]

According to the first aspect of the present invention,
In order to solve the above problems, covered with an insulating film
That are provided in the extending direction of the insulating film.
Connection member for connecting circuit conductors
A metal plate on which a number of metal pins are erected, and
A first fitting portion provided, and a first fitting portion which can be fitted into and removed from the first fitting portion.
Lock that has two fitting parts and can be locked to the mating member
And a resin clip having a member .

[0008]

In this case, the circuit pins of the same flat conductor wiring board can be electrically connected to each other through the metal pins and the metal plate by penetrating the metal pins through the plurality of circuit conductors.
Usability of the flat conductor wiring board can be improved. In addition, a resin clip is fitted to the back of the metal plate,
By locking the resin clip to a panel of a mating member such as a vehicle body or an electric device, the flat conductive wiring board can be attached to the panel, and a multifunctional connecting member can be obtained.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. Figure 2 is a diagram showing a first embodiment of the connection member of the circuit conductor of the flat conductor wiring board according to the present invention.
First, the configuration will be described. In FIG. 1, reference numeral 21 denotes an FPC as a flat-type conductor wiring board. The FPC 21 has a plurality of circuit conductors 23a to 23d made of a thin copper plate or the like for forming a conductor pattern formed on an insulating film 22a. Is covered with an insulating film 22b.

Reference numerals 24 and 25 denote connecting members. The connecting members 24 and 25 have two metal pins 26a, 26b, 27a and 27 on their surfaces.
b is composed of metal plates 26 and 27 erected. The distance between the metal pins 26a and 26b of the metal plate 26 corresponds to the distance between the adjacent circuit conductors, for example, the circuit conductors 23a and 23c, and the distance between the metal pins 27a and 27b of the metal plate 27 is, for example, The circuit conductors 23 facing each other across the circuit conductors 23b and 23c
a, 23d.

Next, the operation will be described. For example, circuit conductor
When connecting the 23a and 23c to each other, as shown in FIG. 2A, the metal pins 26a and 26b are passed through the circuit conductors 23a and 23c, and the tips of the metal pins 26a and 26b are ultrasonically welded. As shown in FIG. 2B, the metal pins 26a and 26b are welded to the insulating film 22b. As a result, the metal pin 26
a, 26b and the metal plate 26, the circuit conductors 23a, 23c of the same FPC 21 can be electrically connected to each other.
Usability of the PC 21 can be improved. In welding the tips of the metal pins 26a and 26b, soldering may be used. Although two metal pins 27a and the like are provided on each of the metal plates 26 and 27, three or more metal pins may be provided.

[0013] FIG. 3 is a diagram showing a second embodiment of the connection member of the circuit conductor of the flat conductor wiring board according to the present invention. In FIG. 3, reference numeral 31 denotes a metal plate, and two metal pins 32a and 32b are erected on the surface of the metal plate. Also this metal plate
A rectangular fitting member (first fitting portion) 33 is provided on the back surface of the fitting member 31.
Are formed. The fitting member 33 has a resin clip 34
The resin clip 34 is bent downward in an L-shape from both ends of the plate-shaped member 35 and the plate-shaped member 35, so that the fitting member 33a can be attached and detached. Fitting members (second fitting portions) 35a and 35b that can be sandwiched and fitted into and removed from the fitting member 33a together with the flat member 35, and a convex portion provided on the back surface of the flat member 35 and fitted into the concave portion 33a. 35
c and a non-return locking member (locking member) 36 which is provided upright on the surface of the flat member 35 and can be locked to a panel of a mating member such as a vehicle body or an electric device. In this embodiment, the metal plate 31, the metal pins 32a and 32b, and the resin clip 34
37.

By such a connecting member 37, for example,
When connecting the circuit conductors 23a and 23c shown in FIG. 1, the metal pins 32a and 32b are penetrated through the circuit conductors 23a and 23c, and the tips of the metal pins 32a and 32b are ultrasonically welded. By welding the 32b to the insulating film 22b, the circuit conductors 23a and 23c of the same FPC 21 can be electrically connected to each other via the metal pins 32a and 32b and the metal plate 31.

Next, fitting members 35a, 35b
After the resin clip 34 is fitted to the metal plate 31 by fitting the protrusion 35c into the concave portion 33a, the non-return locking member 36 is locked to a panel of a vehicle body, an electric device or the like. Then, the FPC 21 is attached to the panel. As a result, the FPC 21 can be attached to the panel using the connecting member 37, and a multifunctional connecting member 37 can be obtained.

[0016]

According to the invention of claim 1, wherein, according to the present invention, by penetrating the metallic pins to a plurality of circuit conductor circuits between conductors of the same flat conductor wiring board via metal pins and the metal plate electrically The connection can be performed, and the usability of the flat conductor wiring board can be improved. In addition to this, the flat conductive wiring board can be attached to the panel by fitting a resin clip to the back surface of the metal plate and locking the resin clip to a panel of a counterpart member such as a vehicle body or an electric device. As a result, a multifunctional connecting member can be obtained.

[Brief description of the drawings]

Figure 1 is a view showing a first embodiment of the connection member of the circuit conductor of the flat conductor wiring board according to the present invention, (a) is a diagram showing the connection member and the FPC, (b) its FPC FIG.

FIG. 2 is a diagram showing a procedure for attaching a connection member of the first embodiment to an FPC.

[Figure 3] is a diagram showing a second embodiment of the connection member of the circuit conductor of the flat conductor wiring board according to the present invention, (a) is to decompose the metal plate and a resin clip which constitutes the connecting member Figure ,
(B) is a figure which shows the state which attached the resin clip to the metal plate.

FIG. 4 is an exploded configuration diagram of a conventional FPC.

FIG. 5 is a configuration diagram of another conventional FPC.

[Explanation of symbols]

 21 FPC (flat conductor wiring board) 22a, 22b Resin film 23a to 23d Circuit conductor 24, 25, 37 Connecting member 26, 27, 31 Metal plate 26a, 26b, 27a, 27b, 32a, 32b Metal pin 33 Fitting member (First fitting portion) 34 Resin clips 35a, 35b Fitting member (second fitting portion) 36 Non-return locking body (locking member)

Claims (1)

(57) [Claims] An insulating film covered by an insulating film.
A plurality of circuit conductors provided along the extending direction of the lum
A metal plate having a plurality of metal pins erected on a surface thereof;
A first fitting portion provided on the back surface of the
Has a possible second fitting part and can be locked to the mating member
And a resin clip having a functional locking member.
A connecting member for a circuit conductor of a flat-type conductor wiring board.