CN210073372U

CN210073372U - Flexible flat bisection slitting cable

Info

Publication number: CN210073372U
Application number: CN201920878435.4U
Authority: CN
Inventors: 焦养国; 颜红方; 王洁; 李荣耀
Original assignee: Changshu Hongbo Communication Technology Co Ltd
Current assignee: Changshu Hongbo Communication Technology Co Ltd
Priority date: 2019-06-12
Filing date: 2019-06-12
Publication date: 2020-02-14
Anticipated expiration: 2029-06-12

Abstract

The utility model discloses a flexible flat slitting strip cable, including insulating layer and a plurality of wire of arranging side by side, flexible flat cable is equipped with first wire kink and second wire kink, two wire kinks are parallel tip to flexible flat slitting strip cable both ends, be equipped with the contained angle between the part of first wire kink and second wire kink or whole wire and parallel tip's wire, the part that is located between first wire kink and the second wire kink is a plurality of wires branch slitting along length direction segmentation, every wire is cut the strip and is contained a plurality of wires, first wire kink, the cross-section of the wire that second wire kink and wire branch slitting is circular, the cross-section of the wire of parallel tip is flat rectangle form. The utility model discloses be favorable to the production to realize, improve the product production yield, ensure product electrical property stable.

Description

Flexible flat bisection slitting cable

Technical Field

The utility model relates to a flexible cable especially relates to a flexible flat strip cable of cutting.

Background

The Flexible Flat Cable (hereinafter referred to as Flexible Flat Cable, FFC for short) is a novel multi-core Cable capable of selecting the number of the wires and the space between the adjacent wires at will, has the advantages of easy bending, thin thickness, small wiring space and the like, and is suitable for connecting electrical appliances among mobile electric devices in severe environments such as power generation, metallurgy, chemical engineering, ports and the like. The basic structure of the flexible flat wire comprises an upper insulating film and a lower insulating film, and a plurality of flat wires which are arranged in parallel at a certain interval and are clamped between the two insulating films. In order to reduce the occupied space of the cable, improve the universality and reduce the probability of short circuit of the cable. Chinese patent publication No. CN 205845539U discloses a flexible flat round conductor wire, which includes a flexible flat conductor wire, wherein a plurality of round conductor wire strips with the same width are formed in the middle of the flexible flat conductor wire in the length direction, and each round conductor wire strip includes a plurality of round conductor wires arranged in parallel at the same interval and insulating films bonded to the upper and lower surfaces of the plurality of conductor wires. The flexible flat wire is provided with reinforcing plates at both ends in the longitudinal direction, and the wire is extended toward both ends in the longitudinal direction and is formed in a flat shape at a portion corresponding to the reinforcing plates. In the actual production process, in order to ensure the safety of slitting and slitting, the distance between two round conductors positioned at the adjacent edges of two adjacent slitting is larger than the distance between all round conductors on the slitting of the round conductor on two adjacent slitting round conductors. In order to realize this structure, it is necessary to bend the round conductors on the partial round wire partial strip to change the pitch between the round conductors, and the bent portion is formed on the round conductors. The conductors are arranged at equal intervals from the bent portion to one end of the lead, and a part of the cross section of each conductor at the parallel end portion is flat (a part near one end of the lead) and the other part is circular (a part near the bent portion). Because the bending part is formed by pulling the conductor to the left side and the right side in parallel through the production device, the distance between the conductors on the parallel end parts is controlled by the wire grooves, the width of the wire grooves is determined according to the width of the flat section conductor, but the flat section conductor is formed by rolling the round section conductor, so the diameter of the round section conductor is smaller than the width of the flat section conductor, the round section conductor can swing in the wire grooves, the problem that the distance between the conductors on the parallel end parts is different when the conductor is pulled is easily caused, the product yield is influenced, and the electrical performance of the flexible flat cable is also influenced.

SUMMERY OF THE UTILITY MODEL

To the above-mentioned prior art defect, the utility model discloses a task lies in providing a flexible flat slitting cable, reduces the production difficulty through the cable structure change, improves the product production yield, stabilizes flexible flat cable's electrical property.

The utility model discloses technical scheme is such: a flexible flat slitting cable comprises an insulating layer and a plurality of wires which are arranged in parallel, wherein the wires are fixed between the insulating layer by vertically laminating the insulating layer, the flexible flat slitting cable is provided with a first wire bending part and a second wire bending part, parallel end parts are arranged between the first wire bending part and one end of the flexible flat slitting cable and between the second wire bending part and the other end of the flexible flat slitting cable, included angles are arranged between parts of or all the wires of the first wire bending part and the second wire bending part and the wires of the parallel end parts, the parts between the first wire bending part and the second wire bending part are divided into a plurality of wire slitting strips along the length direction, each wire slitting strip comprises a plurality of wires, and the cross sections of the wires of the first wire bending part, the second wire bending part and the wire slitting strips are circular, the cross section of the conducting wire at the parallel end part is in a flat rectangular shape.

Further, the portion of the lead wire having a circular cross section and the portion of the lead wire having a flat rectangular cross section are integrally formed.

Furthermore, the wires of the single wire slitting strip are arranged in parallel and have equal intervals.

Further, the wires at the parallel ends are arranged in parallel and at equal intervals.

Furthermore, the insulating layer at the parallel end part is provided with a notch for exposing the lead.

Furthermore, reinforcing plates are arranged on the surfaces of the insulating layers at the two ends of the flexible flat slitting cable.

Compared with the prior art, the utility model the advantage lie in: the cross section of the wire of the parallel end part is in a flat rectangular shape, the cross section of the wire from the first wire bending part to the second wire bending part is in a circular shape, the first bending point of the wire is at the connecting point of the flat rectangular wire and the circular wire, the wire can be prevented from deviating from the central position in the wire groove of the production equipment when the distance is changed (a plurality of wire units are formed), the distance between the wires of the parallel end part can be ensured to be stable, the production yield of products is improved, and the electrical performance of the products is ensured to be stable.

Drawings

Fig. 1 is a schematic view of a surface structure of a flexible flat-slit cable.

Fig. 2 is a schematic side sectional view of a flexible flat slitting strip cable.

Fig. 3 is a schematic view of a flexible flat slitting cable wire arrangement structure.

Fig. 4 is a partially enlarged view of a portion at 1 in fig. 3.

Detailed Description

The present invention will be further described with reference to the following examples, which should not be construed as limiting the invention.

Referring to fig. 1 to 3, the flexible flat slitting cable according to the present embodiment includes an insulating layer 1 and a plurality of wires 2 arranged in parallel, the insulating layer 1 is attached to the insulating layer 1 from top to bottom to fix the wires 2 between the insulating layer 1, the insulating layer 1 is generally made of a hot melt adhesive film such as a PET film, and the wires are covered with the insulating layer to fix and insulate the positions of the wires 2 from each other, thereby improving the overall flexibility of the flexible flat slitting cable.

The flexible flat slitting cable is provided with a first lead bending part a and a second lead bending part B, and it should be noted that the first lead bending part a and the second lead bending part B do not mean that the flexible flat slitting cable is bent as a whole, but mean that the lead 2 inside the insulating layer 1 is bent. Parallel end portions C are arranged between one ends of the first lead bending portions A and the flexible flat slitting strip cables and between the second lead bending portions B and the other ends of the flexible flat cables, each lead 2 of the parallel end portions C are arranged in parallel, the distance between the lead 2 is equal, and the cross section of the lead 2 located at the parallel end portion C is in a flat rectangular shape. The insulating layer 1 of the parallel end portion C is provided with a notch 1a of an exposed wire, and the wire 2 exposed through the notch 1a forms a golden finger connected with other electric components. The surfaces of the insulating layers 1 at the two ends of the flexible flat slitting cable, namely the back parts of the golden fingers, are provided with reinforcing plates 3 so as to enhance the strength of the connecting parts. An included angle is formed between part or all of the wires 2 of the first wire bending part A and the second wire bending part B and the wires 2 of the parallel end part C. The part that is located between first wire kink A and the second wire kink B is divided into a plurality of wire slitting strips 2a along the length direction segmentation of flexible flat slitting strip cable, and every wire slitting strip 2a contains a plurality of wires 2, and each wire 2 parallel arrangement and interval equal in the wire slitting strip 2 a. As shown in fig. 4, the distance D1 between the two nearest wires 2 on the adjacent wire units 2a is greater than the distance D2 between the wires 2 on the single wire unit 2a, and when dicing, the cutting line 4 is located between the two wire dicing strips 2a, and the larger distance D2 can reduce the dicing precision requirement and ensure the product yield. Each wire 2 on the flexible flat bisection strip cable is connected through welding instead of after being formed in a sectional mode, the cross sections of the first wire bending part A, the second wire bending part B and the portion, between the first wire bending part A and the second wire bending part B, of the wire 2 are circular, and the flat rectangular wires of the parallel end parts C are formed by rolling the circular wires.

In the production process, all round wires 2 are arranged in parallel, then a calender rolls the part to be formed with the parallel end part C to form flat rectangular wires 2, each wire 2 is fixed by the joint of an upper insulating layer 1 and a lower insulating layer 1, the flat rectangular wires 2 at the parallel end part C are firstly fixed, then partial wires 2 are bent towards two sides at the connecting point of the flat rectangular wires 2 and the round wires 2 by utilizing a variable-pitch device in the advancing process of the wires 2, the distance between the wires 2 is changed, the upper insulating layer 1 and the lower insulating layer 1 are continuously jointed to form a first wire bending part A and a plurality of wire cutting strips 2a (the wire cutting strips 2a are not separated), then the variable-pitch device is continuously bent to enable the wires 2 to be close to the middle, the bending is completed at the connecting point of the round wires 2 and the flat rectangular wires 2, the upper insulating layer 1 and the lower insulating layer 1 are continuously jointed to form a second wire bending part B, subsequently, the upper and lower insulating layers 1 are further bonded to form parallel end portions C. Finally, the individual conductor partial cut strips 2a are separated from each other by cutting the insulation layer between the individual conductor partial cut strips 2a along the cutting lines 4.

Claims

1. The utility model provides a flexible flat slitting cable, includes insulating layer and a plurality of wire of arranging side by side, the insulating layer laminating from top to bottom will the wire is fixed in between the insulating layer, its characterized in that, flexible flat slitting cable is equipped with first wire kink and second wire kink, first wire kink extremely between the one end of flexible flat slitting cable and second wire kink extremely be parallel tip between the other end of flexible flat slitting cable, be equipped with the contained angle between the part or whole wire of first wire kink and second wire kink and the wire of parallel tip, the part that is located between first wire kink and the second wire kink is divided into a plurality of wire slitting strips along length direction, every wire slitting strip contains a plurality of wires, is located first wire kink, The cross sections of the second lead bending part and the leads of the lead slitting strip are circular, and the cross section of the lead positioned at the parallel end part is in a flat rectangular shape.

2. The flexible bisector cable according to claim 1, wherein the portion of the conductive wire having a circular cross section is integrally formed with the portion of the conductive wire having a flat rectangular cross section.

3. The flexible bisector cable according to claim 1, wherein each of the conductors of a single conductor bisector is disposed in parallel and at equal intervals.

4. The flexible bisector cable according to claim 1, wherein the respective wires at the parallel ends are arranged in parallel and equally spaced.

5. The flexible bisector cable according to claim 1, wherein the insulating layer at the parallel end portions is provided with a notch exposing the conductor.

6. The flexible flat slit ribbon cable of claim 1, wherein the insulating layer surfaces of both ends of the flexible flat slit ribbon cable are provided with reinforcing plates.