CN113597108A

CN113597108A - Cable wire made of FPC (flexible printed circuit) material and manufacturing process thereof

Info

Publication number: CN113597108A
Application number: CN202110860065.3A
Authority: CN
Inventors: 姚阿平
Original assignee: Hi P Shanghai Housing Appliance Co ltd
Current assignee: Hi P Shanghai Housing Appliance Co ltd
Priority date: 2021-07-28
Filing date: 2021-07-28
Publication date: 2021-11-02

Abstract

The invention discloses a manufacturing process of a Cable wire made of an FPC (flexible printed circuit), which comprises the following steps of: s1, preparing an FPC body with a conventional circuit, keeping original designed circuits at the front end and the rear end of the FPC body unchanged, further completing up-down communication of a wire line on the FPC body, and completing electrical connection in an FPC body wiring mode; s2, cutting a gap in the FPC body to avoid a wiring area to form a fine seam, wherein anti-tearing holes are cut at the upper tail end and the lower tail end of the fine seam; and S3, wrapping the middle joint cutting area of the FPC body into a Cable-shaped axial line shape by adopting wrapping cloth made of materials such as acetic acid cloth. The invention can avoid the influence on the yield or reliability of finished products caused by abnormal welding process; the process flow of the Cable wire harness is simplified, and the finished product manufacturing period of the Cable wire harness is shortened; greatly reduced the cost of manufacture of pencil and the whole volume of frivolous Cable wire rod, provide better solution for terminal customer product structural design.

Description

Cable wire made of FPC (flexible printed circuit) material and manufacturing process thereof

Technical Field

The invention relates to a Cable wire made of an FPC material and a manufacturing process thereof.

Background

Cable harness material is often used in notebook and part consumer electronics product, the way of industry all adopts FPC (flexible line way board) one end design to correspond the circuit terminal that the connector matches and the pad that the other end left the one-to-one, middle wire rod part is through the Hotbar technology with the ordinary wire rod of a root correspond the welding with the pad in proper order, the middle wire rod other end also uses same technology to connect another FPC, the cloth technology of middle wire rod part outward appearance parcel acetic acid makes the product a similar tradition pencil convenience and does the overall arrangement according to design space in the casing and match, it has following not enough:

1. the existing process cost is high, the process is complex, the manufacturing period is long, the product yield cannot be guaranteed, and the front end and the rear end of the same wire are welded by adopting a Hot-bar process, but the welding reliability and the circuit Pitch are very close (usually, the distance from the center to the center of two adjacent wires is only about 0.5 mm), short circuit failure can be caused due to slight deviation or excessive tin quantity or dislocation in the welding process, insufficient tin quantity can cause insufficient solder joint, the reliability test of a terminal product is a great test, so that the traditional Cable wire is high in production cost and low in yield;

2. the traditional wire harness has obvious disadvantages in the application of wires with impedance requirements, because the whole wire harness is prepared by the FPC + solder + wire + solder + FPC process, the impedance control of the FPC and the wires is stable, but the FPC and the wires are connected by the Hot-bar welding process, the tin amount cannot be controlled to keep consistent shapes of all lines, in this situation, when a stable frequency signal is input from one end, the stable frequency signal is transmitted to the final tail end through different shapes of materials of the FPC + solder + wire + solder + FPC, and the signal frequency uniformity in the process is very unstable;

3. due to the complex process and long manufacturing period of the traditional Cable, the method has certain influence on the research and development period of the terminal client products.

Disclosure of Invention

In order to solve the technical problem, the invention provides a manufacturing process of a Cable wire made of an FPC material, which comprises the following steps:

s1, preparing an FPC body with a conventional circuit, keeping original design circuits at the front end and the rear end of the FPC body unchanged, further completing up-and-down communication of a wire line on the FPC body, and completing electrical connection in a wiring mode of the FPC body to ensure consistency of signals;

s2, based on the step S1, cutting gaps in the FPC body to avoid the routing area to form thin gaps;

s3, based on the step S2, wrapping the middle cutting seam area of the FPC body into a Cable-shaped axial line shape by adopting wrapping cloth made of materials such as acetate cloth.

In step S2, tear-proof holes are cut at the upper and lower ends of the slit.

The invention also provides a Cable wire made of the FPC material, which is prepared based on the manufacturing process.

Through the technical scheme, the manufacturing process of the Cable wire made of the FPC material, provided by the invention, has the following beneficial effects:

1. the yield or reliability of finished products caused by abnormal welding process can be prevented from being influenced;

2. the process flow of the Cable wire harness is simplified, and the finished product manufacturing period of the Cable wire harness is shortened;

3. greatly reduced the cost of manufacture of pencil and the whole volume of frivolous Cable wire rod, provide better solution for terminal customer product structural design.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below.

Fig. 1 is a schematic structural view of an FPC body disclosed in the embodiment of the present invention after cutting;

fig. 2 is a schematic diagram of Cable wires wrapped by the FPC body disclosed in the embodiment of the present invention.

In the figure: 10, an FPC body; 20. fine sewing; 30. a tear resistant hole; 40. and (6) wrapping the cloth.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

Referring to fig. 1 and 2, the invention provides a Cable wire made of an FPC material and a manufacturing process thereof, comprising the following steps:

s1, preparing an FPC body 10 with a conventional circuit, keeping original design circuits at the front end and the rear end of the FPC body 10 unchanged, further completing up-and-down communication of a wire line on the FPC body 10, and completing electrical connection in a wiring mode of the FPC body 10 to ensure consistency of signals;

s2, based on the step S1, a slit 20 is formed by cutting a gap in the FPC body 10 in a manner of avoiding a wiring area, and anti-tearing holes 30 are also cut at the upper end and the lower end of the slit 20, as shown in FIG. 1, the FPC body 10 which is manufactured on a plane and is not easy to wrap into an axis is divided into a plurality of small units connected together in a manner of avoiding the slitting of the wiring area in a board, so that the middle slitting area can be ensured to wrap into a wire material, the internal deformation and tearing of a product at the end of the slit 20 can be prevented, the purpose of a traditional wire harness can be achieved, and meanwhile, the product performance is superior to the design requirement of the original traditional wire harness board;

s3, based on step S2, wrapping the middle cutting seam area of the FPC body 10 with a wrapping cloth 40 made of a material such as an acetate cloth into a Cable-style axial line shape, as shown in fig. 2.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to the above-described embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A manufacturing process of a Cable wire made of an FPC material is characterized by comprising the following steps:

s1, preparing an FPC body (10) with a conventional circuit, keeping original designed circuits at the front end and the rear end of the FPC body (10) unchanged, further completing up-down communication of a wire line on the FPC body (10), and completing electrical connection in a wiring mode of the FPC body (10);

s2, based on the step S1, cutting a gap in the FPC body (10) to form a thin gap (20) avoiding the routing area;

s3, based on the step S2, wrapping the middle cutting seam area of the FPC body (10) into a Cable-shaped axial line shape by adopting a wrapping cloth (40).

2. The process for manufacturing Cable wire of FPC material according to claim 1, wherein in step S2, anti-tear holes (30) are cut at the upper and lower ends of said slit (20).

3. A Cable wire made of FPC material is characterized by being prepared based on the manufacturing process of claim 1 or 2.