CN207201072U

CN207201072U - Anti-fracture fpc

Info

Publication number: CN207201072U
Application number: CN201721273036.2U
Authority: CN
Inventors: 林建斌
Original assignee: Huizhou Shiyi Soft Formula Circuit Board Co ltd
Current assignee: Huizhou Shiyi Soft Formula Circuit Board Co ltd
Priority date: 2017-09-30
Filing date: 2017-09-30
Publication date: 2018-04-06
Anticipated expiration: 2027-09-30

Abstract

It the utility model is related to the anti-fracture fpc of one of which, Lu Tong areas, bonding pad and bent area including being arranged at the fpc both ends, the both sides of the bent area are provided with bonding pad, the one end of the bonding pad away from the bent area is connected with the Lu Tong areas, and the surface of the bent area is provided with enhancement layer.Kink fracture when the utility model can avoid the fpc from bending.

Description

Anti-fracture fpc

Technical field

Wiring board art is the utility model is related to, especially a kind of anti-fracture fpc.

Background technology

Flexible PCB is that have height reliability to be a kind of made of base material using polyimides or polyester film, excellent Flexible printed circuit.Abbreviation soft board or fpc, there is the characteristics of high Distribution density, in light weight, thickness of thin.It is mainly used in Many products such as mobile phone, notebook computer, PDA, digital camera, LCM.According to the characteristic of the material of flexible PCB and extensively The field of application, volume and reach certain accuracy to more effectively save, make three-dimensional space characteristic and thin thickness more Good is applied in digital product, mobile phone and notebook computer.Flexible PCB（fpc）It is optical image to detect the instrument used Detector.Fpc winding displacements are used for precise electronic industry, can effectively reduce the size of electronic product, the quality of fpc winding displacements is to electricity The performance of sub- product plays very big effect.Fpc is widely used due to its unique structure at present, existing product Fpc bending FPC is individual layer cabling bent area, is easily snapped off during production or device, damaged, service life It is short.

Utility model content

Based on this, it is necessary to provide a kind of anti-fracture fpc, including be arranged at Lu Tong areas, the bonding pad at the fpc both ends And bent area, the both sides of the bent area are provided with bonding pad, the one end of the bonding pad away from the bent area with it is described Lu Tong areas connect, and the surface of the bent area is provided with enhancement layer.

By setting enhancement layer in bent area, when bent area is bent, because the enhancement layer on bent area surface is pullled, limit The bending of bent area so that the bending degree of bent area then can ensure bent area not over the bent degree of fpc plates Can be because the excessive and damaged fracture of doubling degree.

Preferably, the both sides of the bent area are provided with enhancement layer.

Bent area two sides all sets enhancement layer to ensure no matter bent area can be protected to which direction looper.

Preferably, the enhancement layer includes some adhesive tape arranged in parallel, length of the adhesive tape along the bent area Spend direction arrangement.

Booster action can be played to bent area using the adhesive tape of the length direction setting along bent area, adhesive tape can be with curved The bending of folding area and bend, adhesive tape bending to a certain extent when, adhesive tape is stretched to the limit, can not continue to be stretched, now Adhesive tape continues to bend by limitation bent area, then can prevent bent area from continuing bending and damaged, fracture.

Preferably, sizing strip is provided between the adhesive tape, the sizing strip is fixedly installed on the bent area.

Fpc needs to form a three-dimensional arrangement in the electronic device, and fpc bent area has certain bullet Property, the shape of bent area can be caused can not be fixed as same state always, therefore sizing strip is set between adhesive tape, install During fpc, by the shape of the fixed fpc of adjustment to sizing strip, avoid fpc from being denatured in practical process, influence to use.

Preferably, the intersection of the end of the adhesive tape and the bonding pad is provided with transition part.

The transition part of adhesive tape end can prevent the intersection of the end of adhesive tape and fpc connecting portion bending when hand in mistake It is broken greatly.

Preferably, the cross section of the transition part is right triangular shape.

Transition part is triangular pyramid, and two right-angle surfaces of transition part are fixedly connected with the end of adhesive tape and connecting portion respectively, Then when kink is bent, the protection to transition part of the intersection energy of adhesive tape and connecting portion, its fracture is avoided.

Principle of the present utility model, effect are further illustrated with reference to above-mentioned technical proposal：

The utility model reduces the bending degree of bent area by setting enhancement layer in bent area, with avoid bent area because To bend excessively and damaged, fracture, fpc use is influenceed.

Brief description of the drawings

Fig. 1 is fpc anti-fracture described in the utility model embodiment structural representation one；

Fig. 2 is fpc anti-fracture described in the utility model embodiment structural representation two；

Description of reference numerals：

Bent area 11, bonding pad 12, Lu Tong areas 13, adhesive tape 111, sizing strip 112, transition part 2.

Embodiment

For the ease of it will be appreciated by those skilled in the art that doing the utility model into one below in conjunction with accompanying drawing and embodiment Step is described in detail：

Such as Fig. 1-2, a kind of anti-fracture fpc, including it is arranged at the Lu Tong areas 13 at the fpc both ends, bonding pad 12 and curved Folding area 11, the both sides of the bent area 11 are provided with bonding pad 12, the one end of the bonding pad 12 away from the bent area 11 It is connected with the Lu Tong areas 13, the surface of the bent area 11 is provided with enhancement layer.

By setting enhancement layer in bent area 11, when bent area 11 is bent, due to the drawing of the enhancement layer on the surface of bent area 11 Pull, limit the bending of bent area 11 so that the bending degree of bent area 11, then can be with not over the bent degree of fpc plates Ensure that bent area 11 will not be because of the excessive and damaged fracture of doubling degree.

Preferably, the both sides of the bent area 11 are provided with enhancement layer.

The two sides of bent area 11 all sets enhancement layer to ensure no matter bent area 11 can obtain to which direction looper Protection.

Preferably, the enhancement layer includes some adhesive tape 111 arranged in parallel, and the adhesive tape 111 is along the bending The length direction arrangement in area 11.

Booster action, adhesive tape can be played to bent area 11 using the adhesive tape 111 of the length direction setting along bent area 11 111 can bend with the bending of bent area 11, and when adhesive tape 111 is bent to a certain extent, adhesive tape 111 is stretched to the limit, It can not continue to be stretched, now limitation bent area 11 is continued to bend by adhesive tape 111, then can prevent bent area 11 from continuing to bend And damaged, fracture.

Preferably, sizing strip 112 is provided between the adhesive tape 111, the sizing strip 112 is fixedly installed on the bending Area 11.

Fpc needs to form a three-dimensional arrangement in the electronic device, and fpc bent area 11 has certain bullet Property, the shape of bent area 11 can make it that can not be fixed as same state always, therefore sizing strip is set between adhesive tape 111 112, when fpc is installed, by the shape of the fixed fpc of adjustment to sizing strip 112, avoids fpc from being denatured in practical process, influence Use.

Preferably, the intersection of the end of the adhesive tape 111 and the bonding pad 12 is provided with transition part 2.

The transition part 2 of the end of adhesive tape 111 can prevent the intersection of the end of adhesive tape 111 and fpc connecting portion from bending Shi Shouli is excessive and is broken.

Preferably, the cross section of the transition part 2 is right triangular shape.

Transition part 2 is triangular pyramid, and two right-angle surfaces of transition part 2 are fixed with the end of adhesive tape 111 and connecting portion respectively Connection, then when kink is bent, adhesive tape 111 and the protection to transition part 2 of the intersection energy of connecting portion, avoid its fracture.

Embodiment described above only expresses several embodiments of the present utility model, and its description is more specific and detailed, But therefore it can not be interpreted as the limitation to utility model patent scope.It should be pointed out that the common skill for this area For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to The scope of protection of the utility model.Therefore, the protection domain of the utility model patent should be determined by the appended claims.

Claims

1. a kind of anti-fracture fpc, it is characterised in that Lu Tong areas, bonding pad and bending including being arranged at the fpc both ends Area, the both sides of the bent area are provided with bonding pad, the one end of the bonding pad away from the bent area and the Lu Tong areas Connection, the surface of the bent area is provided with enhancement layer.

2. anti-fracture fpc according to claim 1, it is characterised in that the both sides of the bent area are provided with reinforcement Layer.

3. anti-fracture fpc according to claim 1, it is characterised in that the enhancement layer is set including some be parallel to each other The adhesive tape put, length direction arrangement of the adhesive tape along the bent area.

4. anti-fracture fpc according to claim 3, it is characterised in that sizing strip is provided between the adhesive tape, it is described Sizing strip is fixedly installed on the bent area.

5. anti-fracture fpc according to claim 4, it is characterised in that the end of the adhesive tape and the bonding pad Intersection is provided with transition part.

6. anti-fracture fpc according to claim 5, it is characterised in that the cross section of the transition part is right angle trigonometry Shape.