JPH0664329U - Flat harness - Google Patents

Abstract

(57) [Summary] [Purpose] Put information showing the circuit contents etc. into a flat harness such as FPC. [Constitution] Both sides of the conductor (12) are made of insulating film (11A,
Information necessary for the surface of the upper insulating film (11B) in the flat harness (10) covered with 11B)
(15) is printed.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a flexible flat harness (flat electric wire) in which both sides of conductors such as FPC and FWC are covered with insulating films. It is designed to display necessary information such as a circuit number provided on the flat harness.

[0002]

[Prior art]

 In an electrical system used for a vehicle, etc., the wire harness may be damaged due to external damage to the vehicle or to the cause of the system itself, which may cause a malfunction. In this way, when a failure occurs in the electrical system, the circuit of the electrical system that causes this failure is identified and the vehicle route of the circuit is checked to check. When cleaning out the above circuits, refer to "Circuit No.", "Wire size", and "Wire color" to predict and check the damaged circuit along the vehicle route from the circuit number, wire size, and wire color. There is.

In recent years, a flexible flat harness such as an FPC or FWC has been used as a part of a vehicle wire harness due to a demand for space saving. As shown in FIG. 3 (A), the flat harness 1 is formed by covering the upper and lower surfaces of a conductor 2 formed of copper foil or a conductor with insulating films 3A and 3B. The conductor 2 constitutes a large number of circuits. Therefore, the circuit information 4 such as the circuit number is displayed in the dead space of the flat harness 1.

For example, in the case of an FPC in which a conductor is formed by punching out a copper foil, a die for punching out the copper foil into a circuit shape may be engraved to punch out a character portion for displaying circuit information, Circuit information is provided in the dead space using copper foil.

[0005]

[Problems to be solved by the device]

 However, in a door harness for an automobile or the like, as shown in FIG. 4, the circuits including the conductors 2 are densely arranged, and there is often no dead space for printing the copper foil circuit number. In addition, in some cases, it is impossible to engrave the other panel part. In this way, in many cases, the circuit information such as the circuit number is not displayed on the door harness, and when damage occurs in the door harness, the damaged part should be searched in order from the damaged part in order to find out which circuit it is. However, there is a drawback in that the inspection work is very troublesome because it is necessary to check it later.

Further, if a stamping die is engraved for printing a circuit number or the like, the die becomes very complicated and there is a drawback that the cost is increased.

The present invention has been made in view of the above problems, and makes it possible to easily display circuit information even when the circuits are densely arranged and there is no dead space for displaying the circuit information. The purpose is to provide a display that allows easy selection of circuits.

[0008]

[Means for Solving the Problems]

 In order to solve the above problems, the present invention provides a flat harness in which both surfaces of a conductor are covered with an insulating film, and necessary information is printed and displayed on the surface of the insulating film. Is provided.

The flat harness is composed of FPC (flexible printed circuit) or FWC (flexible wire circuit), and the above information is printed on the surface of the insulating resin film in a color distinguishable from a conductor. Information is represented by symbols, numbers, letters, bar codes, and the like. These colors are printed so that they can be easily distinguished from the underlying insulation film and copper foil conductor. Further, it is preferable in terms of circuit management to print by changing the hue according to the contents of the circuit, for example, the circuits of the same system are printed with the same hue.

[0010]

[Action]

 In the flat harness of the present invention, since the necessary information characters are printed on the surface of the insulating film that covers the conductor made of copper foil or conductor, it does not matter if the information is printed on the surface of the conductor. Circuit information can be displayed even when conductors are densely arranged and there is no dead space. Therefore, the types of circuits in the FPC and FWC harnesses can be clarified, and the circuit contents can be easily managed separately.

[0011]

【Example】

 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. The flat harness of this embodiment is a door harness 10 made of FPC. As shown in FIGS. 1 (A) and 1 (B), a conductor 12 formed of copper foil is required on the surface of the first insulating film 11A. The second insulating film 11B is adhered to the upper surface of the conductor 12 via an adhesive so as to form a circuit portion.

On the upper surface of the second insulating film 11 B on the upper surface, that is, on the surface, information characters 15 indicating the circuit contents such as which electrical equipment the circuit composed of the conductor 12 is connected to are formed by printing color resin paint It is printed and given. The information characters 15 are displayed in English in the embodiment, but may be any of symbols, numbers, kanji, bar codes and the like. This printing has a color scheme that can be clearly distinguished from the colors of the insulating film 11B and the conductor 12 that are the base.

As shown in FIG. 2, the door harness 10 made of the FPC has a large number of circuit parts, and “DOOR MIRROR” is provided on the second insulating film 11 B in a position close to each of the circuit parts. , "KNOB SW", "POWER WINDOW", "DOOR LOCK SW", "DOOR LOCK ACT", "STEP LAMP", and "SPEAKER" are printed. Since the color of the information character 15 is different from that of the conductor 12, the information character 15 can be clearly identified even if the information character 15 is overlapped on the upper surface of the conductor 12.

The above-mentioned door harness 10 is attached to a frame inside the door and arranged, and the electrical components mounted on the door are connected to the conductor tips of the above circuits via connectors 20 to 26. After being placed inside the door, a trim cover (not shown) inside the vehicle is attached to cover.

The door harness 10 in which circuit information is printed on the upper surface of the upper insulating film 11B described above is used when the vehicle electrical system is inconvenient or when the harness 10 itself is damaged due to external damage. If you remove the trim cover, you can see the information letter 15 that describes the circuit contents, and you can easily find the wiring of the damaged part.

Although the above embodiment relates to the flat harness of the FPC having the conductor made of the copper foil, it is also applicable to the flat harness of the FWC in which the conductor made of the conductor is covered with the insulating film. Similarly, information can be printed on the top insulating film.

[0017]

[Effect of device]

 As is clear from the above description, in the flat harness composed of FPC and FWC of the present invention, the information character on the upper surface of the insulating film that covers the conductor, which describes the circuit contents, etc. Since it is printed by, the circuit information can be easily displayed even when the conductors are densely arranged and there is no dead space. Therefore, from the circuit information printed on this insulation film, if the electrical system itself or the harness is damaged due to external damage, the damaged part can be quickly checked.

Further, since the simple method of printing the information characters on the upper surface of the insulating film is used, it is possible to attach the information characters at low cost, and it is possible to reduce the manufacturing cost of the harness. Is to have.

[Brief description of drawings]

FIG. 1 shows a door harness comprising an FPC of the present invention, (A) is a partial sectional view, and (B) is a partial plan view.

FIG. 2 is a schematic front view of the door harness.

3A is a sectional view of a conventional door harness, FIG.
Is a partial front view.

FIG. 4 is an overall schematic diagram of a conventional door harness.

[Explanation of symbols]

 10 Harness for FPC door 11A, 11B Insulation film 12 Conductor 15 Information character

Claims (2)

[Scope of utility model registration request] 1. A flat harness in which both surfaces of a conductor are covered with an insulating film, wherein necessary information is printed and displayed on the surface of the insulating film. 2. The flat harness is made of FPC (flexible printed circuit) or FWC (flexible wire circuit), and the information is printed on the surface of the insulating resin film in a color distinguishable from a conductor. The flat harness according to claim 1, which is characterized in that.