CN216487373U

CN216487373U - Prevent impaired FFC structure of conductor

Info

Publication number: CN216487373U
Application number: CN202122439399.1U
Authority: CN
Inventors: 刘文红; 杨倩
Original assignee: Shenzhen Wenxin Electronic Co ltd
Current assignee: Shenzhen Wenxin Electronic Co ltd
Priority date: 2021-10-11
Filing date: 2021-10-11
Publication date: 2022-05-10
Anticipated expiration: 2031-10-11

Abstract

The utility model belongs to the technical field of flexible cables, and particularly relates to an FFC structure for preventing conductors from being damaged, which comprises a conductor layer consisting of a plurality of conductors, two insulating layers respectively arranged on two surfaces of the conductor layer, a composite layer arranged on at least one insulating layer, and at least one positioning hole arranged in the composite layer, wherein the positioning hole corresponds to a gap between any two adjacent conductors needing striping. Compared with the similar products in the prior art, the FFC can effectively prevent the cutter from cutting off or cutting the conductor in the slitting process, and the yield of the FFC in the working procedure is improved.

Description

Prevent impaired FFC structure of conductor

Technical Field

The utility model relates to the technical field of flexible cables, in particular to an FFC (flexible flat cable) which is used for products such as televisions, notebook computers and the like and can prevent a conductor from being cut or broken in a processing process.

Background

The FFC, i.e., the flexible flat cable, is widely applied to various electronic products, and for some products, such as the FFC used in televisions and notebook computers, the FFC needs to be processed into strips between two adjacent conductors during processing so as to meet the use requirements; obviously, if two adjacent conductors needing to be subjected to splitting processing are regarded as a group of conductors, a plurality of groups of conductors on the same FFC can be subjected to splitting processing; when the conventional FFC is subjected to slitting processing, the conductor layers are already shielded by the insulating layers or other material layers, the position of a gap between two adjacent conductors cannot be accurately identified during processing, and the slitting cutter can cut or even cut the conductors in the process, so that the FFC is scrapped, and the reject ratio of the FFC is greatly increased.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects in the prior art, the utility model aims to provide an FFC structure for preventing a conductor from being damaged, and aims to solve the problem that the conductor is damaged during the existing FFC slitting process.

In order to achieve the purpose, the utility model adopts the technical scheme that: the FFC structure for preventing the conductor from being damaged comprises a conductor layer consisting of a plurality of conductors, two layers of insulating layers which are respectively arranged on two surfaces of the conductor layer, at least one layer of insulating layer is provided with a composite layer on the surface, at least one positioning hole is arranged in the composite layer, and the positioning hole corresponds to a gap between any two adjacent conductors needing to be stripped.

Preferably, a composite layer is respectively arranged on the surfaces of the two insulation layers, and at least one positioning hole is arranged in one composite layer.

Preferably, the positioning hole is strip-shaped, and the length direction of the positioning hole is consistent with the length direction of a gap between two adjacent conductors.

Preferably, the number of the positioning holes corresponding to the gap between any two adjacent conductors needing to be stripped is two, and the two positioning holes are positioned on the same straight line.

The beneficial technical effects are as follows: after the composite layer is arranged on the surface of the insulating layer, the composite layer is made of composite materials, the conductor layer is shielded, and when the gap between any two adjacent conductors is subjected to strip processing according to needs, a cutter for strip processing can enter the gap between the two adjacent conductors by taking the positioning hole as a reference, namely the cutter extends into the conductor layer from the positioning hole, so that the conductor can be prevented from being cut off or cut by the strip cutter; here, the correspondence between the positioning hole and the adjacent conductor means that the cutter extends into the conductor layer from the positioning hole, and can enter the gap between the two adjacent conductors; compared with the similar products in the prior art, the FFC can effectively prevent the cutter from cutting off or cutting the conductor in the slitting process, and the yield of the FFC in the working procedure is improved.

Drawings

FIG. 1 is a front view of an embodiment of the present invention;

FIG. 2 is a top view of an embodiment of the present invention;

FIG. 3 is a front view of an FFC of an embodiment of the present invention with a composite layer;

FIG. 4 is a top view of an FFC of an embodiment of the present invention with a composite layer disposed thereon;

FIG. 5 is a front view of a first step in the manufacture of an FFC in accordance with an embodiment of the present invention;

figure 6 is a front view of a second step in processing an FFC according to an embodiment of the present invention.

Detailed Description

In order that those skilled in the art will better understand the technical solution of the present invention, the following detailed description of the present invention is provided in conjunction with the accompanying drawings and embodiments.

As shown in fig. 3-4, an embodiment of the present invention provides an FFC structure for preventing a conductor from being damaged, including a conductor layer 1, where the conductor layer 1 is composed of a plurality of conductors 101; the two insulating layers 2 are respectively arranged on two surfaces of the conductor layer 1, the composite layer 3 is arranged on at least one surface of the insulating layer 2, at least one positioning hole 301 is arranged in the composite layer 3, and the positioning hole 301 corresponds to a gap between any two adjacent conductors 101 needing to be stripped.

Here, the number of conductors 101 included in the conductor layer of each FFC is determined according to the specification of the FFC, and therefore, the number of conductors 101 is not particularly limited for FFCs of different uses.

The composite layer 3 is made of a composite material, and can be only arranged on the surface of one of the insulating layers 2, or can be respectively arranged on the surfaces of two insulating layers 2, and after the composite layer 3 is arranged, the conductor layer 1 is shielded.

If two adjacent conductors 101 that need to be processed in a split manner are regarded as a group of conductors, and there may be several groups of conductors that need to be processed in a split manner on the same FFC, as shown in fig. 3, it means that there are two groups of conductors that need to be processed in a split manner, and therefore, for the same FFC, there may be multiple groups of conductors that need to be processed in a split manner, and there is no particular limitation on the number of the conductors, and the number of the conductors is generally determined according to the application scenario of the FFC.

Considering the case where all conductors on the FFC need to be separated from their neighboring conductors, and where a conductor in the middle needs to be separated from conductors on both sides, the above description of grouping should be understood as that the conductor in the middle is grouped with two conductors adjacent to it, for example, the n-th conductor is grouped with both the n-1 th conductor and the n +1 th conductor.

The strip processing is carried out aiming at the FFC which finishes the processing of the joint line, namely, a single conductor 101, an insulating layer covering two surfaces of the single conductor, and an insulating layer covering the composite layer are cut off from the adjacent conductors, the cutting position is the longitudinal gap of the two adjacent conductors, after the strip processing, the two adjacent conductors are separated between the connecting parts at the two ends of the FFC, and then the multiple conductors are stacked or bundled together according to the requirement, thereby reducing the width between the connecting parts at the two ends of the FFC and being applied to different places, at the moment, the end parts of the multiple conductors forming the two ends of the conductor layer are still connected and can not be separated.

As shown in fig. 3, in the present embodiment, the positioning hole 301 has a strip shape, and the length direction of the positioning hole coincides with the length direction of the gap between two adjacent conductors 101.

Two positioning holes 301 corresponding to the gap between any two adjacent conductors needing to be stripped are positioned on the same straight line; that is, for the same group of conductors to be separated, the number of positioning holes 301 provided in the present embodiment is two, but in practical applications, there may be one or more positioning holes, which are determined by the length of the FFC, the machining accuracy, and other factors, and therefore, the number of positioning holes 301 is not particularly limited to the same group of conductors.

Here, the positioning hole 301 corresponds to the gap between the adjacent conductors, which means that the cutter extends into the conductor layer 1 from the positioning hole 301, i.e. enters the gap between the two adjacent conductors.

As shown in fig. 1-2, in the FFC of the present embodiment, a composite layer 3 is respectively disposed on the surfaces of two insulating layers 2, and at least one positioning hole is disposed in only one of the composite layers 3.

In summary, after the composite layer 3 is disposed on the surface of the insulating layer 2, the composite layer is made of a composite material, the conductor layer 1 is shielded, and when a gap between any two adjacent conductors 101 is subjected to splitting processing as required, a cutter for splitting processing takes the positioning hole 301 as a reference, that is, the cutter extends into the conductor layer 1 from the positioning hole 301, and can enter the gap between the two adjacent conductors, so as to prevent the splitting cutter from cutting or nicking the conductors; compared with the similar products in the prior art, the FFC can effectively prevent the cutter from cutting off or cutting the conductor in the slitting process, and the yield of the FFC in the working procedure is improved.

The FFC can be manufactured by the following method:

firstly, preparing an FFC, wherein the FFC needs to pass through a hole PIN or change a spacing to leave enough space for a stripe at the stripe during line processing, as shown in FIG. 5;

secondly, pasting a composite material on the surface of any insulating layer of the FFC to form a composite layer, as shown in FIG. 6;

thirdly, punching two rows of positioning holes on the composite layer, wherein the unpicked positioning holes respectively correspond to the gaps of two groups of conductors needing to be subjected to splitting processing, and each group of conductors consists of two adjacent conductors as shown in fig. 3;

fourthly, pasting a composite material on the surface of the other insulating layer of the FFC to form a composite layer;

fifthly, dividing the wire body into strips, wherein the punched positioning holes can be used as a reference during the strip division, so that the conductor is prevented from being cut or cut; meanwhile, after the strip division is finished, whether the strip division line is in the punching hole or not can be observed to judge whether the conductor is cut or broken; the finished FFC product after slitting is obtained, as shown in figure 1.

In the above description, it should be noted that the terms "mounted," "connected," and the like are used in a broad sense, and for example, they may be fixedly connected, detachably connected, or integrally connected; the connection may be direct or indirect via an intermediate medium, and the connection may be internal to the two components.

It is to be understood that the above-described embodiments are merely illustrative of some, but not restrictive, of the broad invention, and that the appended drawings illustrate preferred embodiments of the utility model without limiting its scope. This invention may be embodied in many different forms and, on the contrary, these embodiments are provided so that this disclosure will be thorough and complete. All equivalent structures made by using the contents of the specification and the attached drawings of the utility model can be directly or indirectly applied to other related technical fields, and are also within the protection scope of the patent of the utility model.

Claims

1. The FFC structure for preventing the conductor from being damaged comprises a conductor layer consisting of a plurality of conductors and two insulating layers which are respectively arranged on two surfaces of the conductor layer, and is characterized in that a composite layer is arranged on the surface of at least one insulating layer, at least one positioning hole is arranged in the composite layer, and the positioning hole corresponds to a gap between any two adjacent conductors needing to be stripped.

2. The FFC structure for preventing the damage of the conductor according to claim 1, wherein a composite layer is respectively arranged on the surfaces of the two insulation layers, and at least one positioning hole is arranged in one of the composite layers.

3. The FFC structure for preventing the conductors from being damaged as claimed in claim 2, wherein the positioning holes are in a strip shape, and the length direction of the positioning holes is consistent with the length direction of the gap between two adjacent conductors.

4. The FFC structure capable of preventing the conductors from being damaged as claimed in claim 3, wherein the number of the positioning holes corresponding to the gap between any two adjacent conductors to be stripped is two, and the two positioning holes are positioned on the same straight line.