CN209930603U

CN209930603U - FPC (flexible printed circuit) bending property improving structure of mobile phone camera module

Info

Publication number: CN209930603U
Application number: CN201822193758.8U
Authority: CN
Inventors: 葛凯悦; 罗建文; 杜航; 沈舒航; 王旭
Original assignee: Hengdian Group DMEGC Magnetics Co Ltd
Current assignee: Hengdian Group DMEGC Magnetics Co Ltd
Priority date: 2018-12-25
Filing date: 2018-12-25
Publication date: 2020-01-10
Anticipated expiration: 2028-12-25

Abstract

The utility model belongs to the technical field of the technique of flexible line way board and specifically relates to a structure is improved to cell-phone camera module FPC nature of buckling is related to. The utility model provides a structure is improved to cell-phone camera module FPC buckling nature, is including last FPC layer, adhesive linkage, well FPC layer, adhesive linkage and the FPC layer down that sets gradually, last FPC on situ be provided with the bending layer, lower FPC on situ be provided with down the bending layer, last bending layer and lower bending layer all toward keeping away from well FPC layer direction and forming protruding structure, last bending layer and lower bending layer and well FPC between the layer all have the clearance, the side of keeping away from well FPC layer of last bending layer and lower bending layer on all be provided with the protective layer, the protective layer including setting up the rectangle framework on the lateral wall on last bending layer and lower bending layer, the rectangle framework in along diagonal cross arrangement have two protecting strips. The utility model discloses the performance of buckling is good, difficult emergence fracture.

Description

FPC (flexible printed circuit) bending property improving structure of mobile phone camera module

Technical Field

The utility model belongs to the technical field of the technique of flexible line way board and specifically relates to a structure is improved to cell-phone camera module FPC nature of buckling is related to.

Background

A Flexible Printed Circuit Board (Flexible Printed Circuit Board) is a Printed Circuit made of a Flexible insulating base material, and has many advantages that a rigid Printed Circuit Board does not have. For example, the device can be freely bent, wound and folded, can be randomly arranged according to the space layout requirement, and can be randomly moved and stretched in a three-dimensional space, so that the integration of component assembly and wire connection is realized. The FPC can be used for greatly reducing the volume of electronic products, and is suitable for the development of the electronic products in the directions of high density, miniaturization and high reliability. Therefore, the FPC is widely applied to the fields or products of aerospace, military, mobile communication, laptop computers, computer peripherals, PDAs, digital cameras and the like. FPC-Flexible Printed Circuit Flexible Circuit Board is also called Flexible Circuit Board; a printed circuit having high reliability and excellent flexibility is manufactured by forming a wiring on a copper foil by etching using a mylar or polyimide as a base material.

The FPC also has the advantages of good heat dissipation and weldability, easy connection and installation, low comprehensive cost and the like, and the design of soft and hard combination also makes up the slight deficiency of the flexible base material in the bearing capacity of the element to a certain extent.

The module of making a video recording mainly is applied to electronic terminal products such as cell-phone, panel computer, unmanned aerial vehicle, medical treatment, has become the essential life article of people now.

The current mainstream structure of the camera module is RFPC (including chip) + FPC (bending region) + RFPC (including connector) and FPC (including chip and steel sheet reinforcement) + FPC (bending region) + FPC (including connector and steel sheet reinforcement). The important component of the module of making a video recording of the FPC bending region can be seen, this part need have certain bending when the installation, because most module FPC that makes a video recording bending region all is shorter, influence the bending property more, the good meeting of bending property directly leads to the installation bad, FPC fracture leads to the module of making a video recording to scrap even.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims at the above problem, provide one kind and buckle the performance well, difficult cracked cell-phone camera module FPC nature of buckling improves the structure.

The purpose of the utility model is mainly realized by the following scheme: the utility model provides a structure is improved to cell-phone camera module FPC buckling nature, is including last FPC layer, adhesive linkage, well FPC layer, adhesive linkage and the FPC layer down that sets gradually, last FPC on situ be provided with the bending layer, lower FPC on situ be provided with down the bending layer, last bending layer and lower bending layer all toward keeping away from well FPC layer direction and forming protruding structure, last bending layer and lower bending layer and well FPC between the layer all have the clearance, the side of keeping away from well FPC layer of last bending layer and lower bending layer on all be provided with the protective layer, the protective layer including setting up the rectangle framework on the lateral wall on last bending layer and lower bending layer, the rectangle framework in along diagonal cross arrangement have two protecting strips. The upper FPC layer, the bonding layer, the middle FPC layer, the bonding layer and the lower FPC layer are sequentially arranged, the upper FPC layer, the middle FPC layer and the lower FPC layer are connected together through the bonding layer, each FPC layer is of an independent single-layer plate structure, an upper bending layer is arranged on the upper FPC layer, a lower bending layer is correspondingly arranged on the lower FPC layer, a protruding structure is formed in the direction of the upper bending layer and the lower bending layer far away from the middle FPC layer, gaps are formed between the upper bending layer and the middle FPC layer, the protruding height can be correspondingly modified according to the actual application requirements of products, the design of the upper bending layer and the lower bending layer can realize stable and effective bending without fracture, protective layers are arranged on the side faces, far away from the middle FPC layer, of the upper bending layer and the lower bending layer, each protective layer comprises a rectangular frame body arranged on the side walls of the upper bending layer and the lower bending layer, two protective strips are arranged in the rectangular frame body in a crossed mode along the diagonal lines, the setting of protective layer does not influence the bending performance on bending layer, has improved the stability on bending layer for go up bending layer and lower bending layer can not break after buckling many times, thereby improved the holistic life of FPC.

Preferably, the rectangular frame body and the protective strip are both made of copper materials. The rectangular frame body and the protection strip are both made of copper materials, are environment-friendly, safe to use and easy to process, and have good ductility.

Preferably, the adhesive layer is an epoxy adhesive. The adhesive layer is an epoxy resin adhesive, and has the advantages of good adhesive property, good functionality, low price and simple and convenient adhesive process.

Therefore, the utility model discloses a cell-phone camera module FPC nature of buckling improves structure possesses following advantage: the utility model discloses simple structure, the performance of buckling is good, and stability is high, difficult emergence fracture.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural diagram of the protective layer of the present invention.

Fig. 3 is a schematic structural diagram of the present invention during bending.

Illustration of the drawings: 1-protective layer, 2-upper bending layer, 3-upper FPC layer, 4-adhesive layer, 5-lower FPC layer, 6-lower bending layer, 7-middle FPC layer, 8-protective strip and 9-rectangular frame.

Detailed Description

The technical solution of the present invention is further specifically described below by way of examples and with reference to the accompanying drawings.

Example 1:

as shown in fig. 1, 2 and 3, the FPC bending property improving structure of the mobile phone camera module comprises an upper FPC layer 3, an adhesive layer 4, a middle FPC layer 7, an adhesive layer 4 and a lower FPC layer 5 which are sequentially arranged, wherein the upper FPC layer 3, the middle FPC layer 7 and the lower FPC layer 5 are connected together through the adhesive layer 4, the adhesive layer 4 is an epoxy resin adhesive, the adhesive property and the functionality are good, the price is low, the adhesive process is simple and convenient, each FPC layer is of an independent single-layer structure, the upper FPC layer 3 is provided with the upper bending layer 2, the lower FPC layer 5 is correspondingly provided with the lower bending layer 6, the upper bending layer 2 and the lower bending layer 6 form a convex structure towards the direction far away from the middle FPC layer 7, gaps are arranged between the upper bending layer 2 and the lower bending layer 6 and the middle FPC layer 7, the convex height can be correspondingly modified according to the actual application requirements of the product, the design of the upper bending layer 2 and the lower bending layer 6 can realize stable and effective bending without fracture, go up all to be provided with protective layer 1 on the side of FPC layer 7 in keeping away from of bending layer 2 and lower bending layer 6, protective layer 1 is including setting up the rectangle framework 9 on the lateral wall of last bending layer 2 and lower bending layer 6, be provided with two protection strips 8 along diagonal cross in the rectangle framework 9, protective layer 1's setting does not influence the bending property on bending layer, the stability on bending layer has been improved, make and go up bending layer 2 and lower bending layer 6 can not break through buckling many times, thereby the holistic life of FPC has been improved.

The rectangular frame body 9 and the protection strips 8 are made of copper materials, are environment-friendly, safe to use and easy to process, and have good ductility.

It should be understood that this example is for illustrative purposes only and is not intended to limit the scope of the present invention. Furthermore, it should be understood that various changes and modifications of the present invention may be made by those skilled in the art after reading the teachings of the present invention, and these equivalents also fall within the scope of the appended claims.

Claims

1. The utility model provides a structure is improved to cell-phone camera module FPC nature of buckling, a serial communication port, including last FPC layer, adhesive linkage, well FPC layer, adhesive linkage and the FPC layer down that sets gradually, last FPC on situ be provided with the bending layer, lower FPC on situ be provided with down the bending layer, last bending layer and lower bending layer all toward keeping away from well FPC layer direction and form protruding structure, last bending layer and all have the clearance down between bending layer and the well FPC layer, the side of keeping away from well FPC layer on last bending layer and the bending layer down on situ all be provided with the protective layer, the protective layer including setting up the rectangle framework on the lateral wall on last bending layer and the bending layer down, the rectangle framework in along diagonal cross arrangement have two guard bars.

2. The FPC bending property improving structure of the mobile phone camera module according to claim 1, wherein the rectangular frame body and the protective strip are made of copper material.

3. The FPC bending property improving structure of the mobile phone camera module according to claim 1 or 2, wherein the bonding layer is an epoxy resin adhesive.