JP2003151373A - Laminated flat cable - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent deterioration of insulation of insulators. SOLUTION: In upper and lower flat cables 11 and 11', a plurality of conductors 12 and 12' are flatly arranged in parallel respectively, they are respectively covered by the insulators 13 and 13' comprising synthetic resin, and an outline is formed like a band. A multiplicity of protrusions 14 are provided in a lower face of the insulator 13 of the flat cable 11, a multiplicity of protrusions 14' are provided in an upper face of the insulator 14' of the flat cable 11', and abutting of the protrusions 14 and 14' is prevented when the flat cables 11 and 11' are laminated. A space excluding the protrusions 14 and 14' is formed between the flat cables 11 and 11', and accumulation of a heat generation is prevented.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a laminated flat cable formed by laminating a plurality of strip-shaped flat cables having protrusions.

[0002]

2. Description of the Related Art For example, as shown in FIG. 6, in a conventional laminated flat cable, a plurality of flat cables 1 are laminated in close contact with each other. Each flat cable 1
In, a plurality of foil-shaped conductors 2 are arranged in parallel and in a plane shape, respectively, and are protected from both sides by an insulator 3 made of a synthetic resin sheet, so that the outer shape is a band shape.

[0003]

However, in such a conventional laminated flat cable, the amount of heat generated by the current flowing through the conductor 2 of the flat cable 1 is accumulated between the flat cables 1 or between adjacent articles. Is
There is a problem that the temperature rises and the insulating property of the insulator 3 decreases.

An object of the present invention is to solve the above-mentioned problems and to provide a laminated flat cable which can prevent deterioration of the insulating property of an insulator.

Another object of the present invention is to provide a laminated flat cable capable of easily performing laminated positioning of a plurality of flat cables.

[0006]

A flat cable according to the present invention for attaining the above object comprises a plurality of foil-shaped conductors arranged at intervals in a plane and protected by insulators from both sides. It is characterized in that a plurality of flat cables having a large number of protrusions are laminated outside the region of the foil conductor.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described in detail based on the embodiments shown in FIGS. 1 is a perspective view of an embodiment in which, for example, two flat cables 11 and 11 'are laminated, FIG. 2 is a side view, and FIG. 3 is a perspective view of a state before the flat cables 11 and 11' are laminated. Is. Each flat cable 11, 11 'has, for example, 3
Insulators 13 and 13 'made of a synthetic resin sheet material in which book foil conductors 12 and 12' are arranged in parallel and in a plane.
It is protected from both sides by and has a strip-shaped outer shape.

And, on the upper surfaces of the insulators 13 and 13 ',
For example, a large number of hemispherical projections 14 and 14 'are integrally formed in a row along both side edges. This protrusion 14, 14 '
Are formed after the conductor 12 is covered with the insulators 13 and 13 'or simultaneously with the covering by press molding with a heating die or the like, and the back side is a depression.

The two flat cables 11 and 11 'are laminated with the projections 14 and 14' facing upward. After the upper and lower flat cables 11 and 11 'are stacked, both ends thereof are connected to, for example, a connector (not shown), and the stacked state of the flat cables 11 and 11' is maintained.

Conductors 12, 1 of this laminated flat cable
When a current flows through 2 ', the amount of heat generated from the conductors 12 and 12' radiates via the insulators 13 and 13 '. However, in the laminated flat cable of this embodiment, a gap corresponding to the height of the protrusion 14 'is formed between the flat cables 11 and 11', and the portion excluding the protrusion 14 'is a space, so the flat cable A calorific value is less likely to be accumulated between 11, 11 ', and the insulating properties of the insulators 13, 13' are not deteriorated.

In this case, the lower protrusion 14 'is
The gap between the two protrusions 14 and 14 'is preferably different so as not to enter the recess of the upper protrusion 14.

In the second embodiment shown in FIG. 4,
Protrusions 14 and 1 of the same flat cable 11 and 11 '
4'are laminated together so that both protrusions 14 and 1
By fitting all the protrusions 14 ′ of the one flat cable 11 ′ into all the depressions of the protrusions 14 of the other flat cable 11 at equal intervals, the flat cables 11 and 11 ′ can be accurately measured. Can be positioned and stacked.

In this case, rather than dissipating the amount of heat generated, the two flat cables 11 and 11 'are superposed on each other without using an adhesive or the like, and the flat cable 1
Even if 1 and 11 'move with respect to each other, no deviation occurs.

In the third embodiment shown in FIG. 5,
The protrusions 14 and 14 'of the flat cables 11 and 11' face each other, and the protrusion 14 of the upper flat cable 11 and the protrusion 14 'of the lower flat cable 11' are the same when the flat cables 11 and 11 'are stacked. , Are located alternately. In this case, the space between the flat cables 11 and 11 'is further secured.

Further, in the above-mentioned embodiment, it has been explained that two flat cables 11, 11 'are laminated, but it is also possible to laminate three or more flat cables 11, 11'. There is no end. In this case, the projections 14 and 14 'may be laminated in various directions.

It should be noted that the protrusions 14 and 14 'are replaced by the insulators 13 and 1
Flat cable 1 was installed along both edges of 3 '.
If the protrusions 14 and 14 ′ are provided so as not to interfere with each other when the layers 1 and 11 ′ are laminated, the formation position is not limited to the both side edges and may be provided as a whole. Further, the protrusions 14 may not be provided on only one side of the flat cables 11 and 11 ', but may be alternately projected on both sides. Similarly, although the protrusions 14 and 14 'are formed in a hemispherical shape, any other shape can be used as long as the distance between the flat cables 11 and 11' can be maintained at a predetermined value.

[0017]

As described above, in the laminated flat cable according to the present invention, since a large number of protrusions are provided on one surface of the insulator of each flat cable, the flat cables in the case where a plurality of flat cables are laminated are A gap is obtained between the flat cables and the other object, the amount of heat generated is less accumulated between the flat cables, and the insulation of the insulator does not deteriorate.

If all the protrusions of one adjacent flat cable are fitted into all the depressions of the other flat cable, it is easy to stack a plurality of flat cables without providing any fixing means. become.

[Brief description of drawings]

FIG. 1 is a perspective view of a first embodiment.

FIG. 2 is a side view.

FIG. 3 is a perspective view of a state before stacking.

FIG. 4 is a side view of the second embodiment.

FIG. 5 is a side view of the third embodiment.

FIG. 6 is a perspective view of a conventional example.

[Explanation of symbols]

11, 11 'flat cable 12,12 'conductor 13, 13 'insulator 14, 14 'protrusion

Claims (5)

[Claims] 1. A plurality of flat cables formed by protecting a plurality of foil-shaped conductors arranged at intervals in a plane from each other with an insulator, and forming a large number of protrusions outside the region of the foil-shaped conductor. A laminated flat cable characterized by being laminated. 2. The laminated flat cable according to claim 1, wherein the flat cables are laminated so that the protrusions face the same direction. 3. The laminated flat cable according to claim 2, wherein the protrusion of one of the flat cables is located inside the protrusion of the other flat cable. 4. Stacking so that the protrusions face each other,
The laminated flat cable according to claim 1, wherein the protrusion of the one flat cable is located between the protrusions of the other flat cable. 5. The laminated flat cable according to claim 1, wherein the flat cables are laminated so that the protrusions face the opposite direction.