CN206835451U - Flexible PCB with bending resistance folded structure - Google Patents
Flexible PCB with bending resistance folded structure Download PDFInfo
- Publication number
- CN206835451U CN206835451U CN201720615904.4U CN201720615904U CN206835451U CN 206835451 U CN206835451 U CN 206835451U CN 201720615904 U CN201720615904 U CN 201720615904U CN 206835451 U CN206835451 U CN 206835451U
- Authority
- CN
- China
- Prior art keywords
- flexible pcb
- sheet metal
- element region
- flexible
- bending resistance
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of flexible PCB with bending resistance folded structure, its first end is provided with element region, and the element region is connected with flexible connection section, the other end connection line area of the flexible connection section, the other end connecting portion of the line areas；The back side of the element region, which is provided with, strengthens sheet metal, and the sheet metal edge of strengthening has the binding structure bent up；The end of the fixed part is provided with tack coat, and the fixed part is provided with folding line and fixing hole；The junction of the flexible connection section and line areas is provided with the turning into 90 degree, and the turning is provided with arc groove, and the sheet metal of bend resistance is provided with below the arc groove.The utility model can make bend resistance fracture energy of the flexible PCB by reinforcement structure raising corner around the corner.
Description
Technical field
A kind of circuit board is the utility model is related to, is broken more particularly, to a kind of bend resistance that can improve flexible PCB
The flexible PCB with bending resistance folded structure of ability.
Background technology
FPC is Flexible Printed Circuit abbreviation, also known as FPC, flexible printed circuit board, is scratched
Property wiring board, abbreviation soft board or FPC, there is the characteristics of high Distribution density, in light weight, thickness of thin.It is mainly used in mobile phone, notes
Many products such as this computer, PDA, digital camera, LCM, realize lightweight, miniaturization, slimming, so as to reach element dress
Put and wire connecting integration.
Flexible printed circuit board is the printed circuit made of flexible insulating substrate, has many rigid printed circuit boards
The advantages of not possessing.Such as it can require any arrangement with free bend, winding, folding according to space layout, and in three-dimensional
Space is arbitrarily mobile and flexible, so as to reach the integration that components and parts assembling connects with wire.Electronics can be substantially reduced using FPC
The volume of product, it is applicable the needs that electronic product develops to high density, miniaturization, highly reliable direction.Therefore, FPC is in space flight, army
It is widely used on the fields such as thing, mobile communication, laptop computer, computer peripheral equipment, PDA, digital camera or product.With
Mylar or polyimides are base material, have height reliability by being etched in formation circuit on copper foil and manufactured one kind,
The printed circuit of excellent flexibility.
FPC also has the advantages that good thermal diffusivity and solderability and relatively low, the soft or hard combination that is easy to load, integrated cost
Design also to compensate for flexible parent metal to a certain extent slightly insufficient in element bearing capacity.
Flexible print circuit board has one side, two-sided and multi-layer sheet point.Used base material using polyimide copper clad lamination as
It is main.Such a material thermal resistance is high, good stability of the dimension, and the cover layer with having mechanical protection and good electrical insulating properties concurrently passes through
Compacting forms final products.Two-sided, multilayer printed wiring board top layer and inner conductor realize ectonexine circuit by metallization
Electrical connection.
It is required for using FPC in many electronic products, still, often due to there is must in whole flexible PCB
The turning wanted, the especially turning in movable part, although existing technology is provided with arc groove on turning prevents corner
Fracture, but situation about being broken by hyperactivity is many times still occurring.
Utility model content
The technical problem that the utility model solves is to provide a kind of flexible PCB with bending resistance folded structure, makes flexible electrical
The corner location of road plate has the ability of stronger bend resistance fracture.
Technical solution of the present utility model is：
A kind of flexible PCB with bending resistance folded structure, wherein, its first end is provided with element region, the element region connection
Flexible linkage section, the other end connection line area of the flexible connection section, the other end connecting portion of the line areas；It is described
The back side of element region, which is provided with, strengthens sheet metal, and the sheet metal edge of strengthening has the binding structure bent up；The fixed part
End is provided with tack coat, and the fixed part is provided with folding line and fixing hole；The flexible connection section and the junction of line areas
Provided with turning, the turning is provided with arc groove, and the sheet metal of bend resistance is provided with below the arc groove.
The flexible PCB with bending resistance folded structure as described above, wherein, it is described to strengthen the steel that sheet metal is 0.15mm
Piece.
The flexible PCB with bending resistance folded structure as described above, wherein, set on the element region and reinforcement sheet metal
There is the second fixing hole.
The flexible PCB with bending resistance folded structure as described above, wherein, the line areas is provided with strengthening course.
The flexible PCB with bending resistance folded structure as described above, wherein, the upper surface of the element region is coated with height
Warm glue.
Learnt by described above, the utility model compared with prior art, can reach the effect of following really：
It is of the present utility model it is terminally positioned have attachment structure, arc groove is provided with by the corner in flexible PCB
While, also install sheet metal additional in the corresponding lower surface of arc groove so that folding s tress will not act directly on flexible circuit
On plate, so that flexible PCB can bear the destruction that more bending motions are brought, increase the service life.
Brief description of the drawings
Fig. 1 is the structural representation of the flexible PCB of the present utility model with bending resistance folded structure.
Main element label declaration：
The utility model：
1：Line areas 2：Element region 21：Second fixing hole
3：It is flexibly connected section 4：Strengthen sheet metal 5：Fixed part
51：Fixing hole 52：Folding line 6：Strengthening course
7：Sheet metal 8：Arc groove
Embodiment
In order to which the technical characteristics of the utility model, purpose and effect are more clearly understood, now control illustrates
Specific embodiment of the present utility model.
A kind of flexible PCB with bending resistance folded structure of the present utility model, refer to shown in Fig. 1, and it is preferably implemented
In example, element region 2 should be provided with the first end of the flexible PCB of bending resistance folded structure, the element region 2 connects flexible company
Section 3 is connect, the other end connection line area 1 of the flexible connection section 3, the other end connecting portion 5 of the line areas 1；The member
The back side in part area 2, which is provided with, strengthens sheet metal 4, and the edge of sheet metal 4 of strengthening has the binding structure bent up；The fixed part 5
End be provided with tack coat, and the fixed part 5 is provided with folding line 52 and fixing hole 51.By being set at the back side of element region 2
Have and strengthen sheet metal 4, solve the problems, such as that flexible PCB is too high in the suppleness of element region 2, the machinery for strengthening flexible PCB is strong
Degree, facilitates the surface mounted element of flexible PCB, facilitates the overall package of electronic digital product, the binding structure bent up can make
Preferably fixed and combination between flexible PCB and reinforcement sheet metal 4, and protect the edge of flexible PCB.Meanwhile Gu
Determining the folding line 52 in portion 5 can bend fixed part 5, and will not arch upward, be preferably bonded the component surface that is wrapped by or
Shell inner surface, fixing hole 51 is further increased, make the component of the cylinder or column on its housing with digital product
With reference to position-limiting action is played, make the positioning of flexible PCB more firm, digital product internal structure is compacter, also makes flexible circuit
Plate is more preferably bonded with component surface, reduces the curling and damage of flexible PCB caused by loosening.In the flexible connection section
Turning is provided with the junction of line areas, the turning is provided with arc groove 8, and the lower section of arc groove 8 is provided with bend resistance
Sheet metal 7.By being provided with arc groove 8 around the corner, while the sheet metal 7 of counter structure is provided with the lower section of arc groove 8,
So as to avoid when bending motion, bursting stress is applied directly on the plate body of flexible PCB, and makes first to act on sheet metal 7
On；And the thinner thickness of sheet metal 7, there is certain flexibility.It can bend within the specific limits.So as to avoid flexible circuit
Fracture damage of the plate corner when bending acrokinesia occurs.
The as described above flexible PCB of the present utility model with bending resistance folded structure, in its preferred embodiment, institute
State the steel disc for strengthening that sheet metal 4 is 0.15mm.The reinforcement sheet metal 4 is steel disc, and thickness is 0.2mm so that flexible circuit
The intensity of the element region 2 of plate is highly improved, meanwhile, the thickness can be good at meeting the needs of installation and space utilization
Requirement.
The as described above flexible PCB of the present utility model with bending resistance folded structure, in its preferred embodiment, institute
State element region 2 and strengthen sheet metal 4 and be provided with the second fixing hole 21.By being provided with the structure of the second fixing hole 21 in element region 2,
The positioning of flexible PCB can be made more firm.
The as described above flexible PCB of the present utility model with bending resistance folded structure, in its preferred embodiment, institute
State line areas 1 and be provided with strengthening course 6.The strengthening course 6 is coated on the tow sides of the line areas 1, adds flexible circuit
The thickness of plate, the hardness of plate body is improved, facilitate the overall package of product.
The as described above flexible PCB of the present utility model with bending resistance folded structure, in its preferred embodiment, institute
The strengthening course 6 that strengthening course 6 is PI strengthening courses, i.e. pi is stated, the thickness of strengthening course 6 of the upper surface of the inserting terminal is
0.125mm, the thickness of the strengthening course 6 of its lower surface is 0.125mm, and the thickness of line areas 1 is 0.4mm.
The as described above flexible PCB of the present utility model with bending resistance folded structure, in its preferred embodiment, institute
The upper surface for stating element region 2 is coated with high-temp glue.High-temp glue is coated with the upper surface of element region 2, can be to first device of element region 2
Part plays high temperature-proof and physical protection.Improve the service life of flexible PCB, and structural environment adaptability.
It is of the present utility model it is terminally positioned have attachment structure, arc groove is provided with by the corner in flexible PCB
While, also install sheet metal additional in the corresponding lower surface of arc groove so that folding s tress will not act directly on flexible circuit
On plate, so that flexible PCB can bear the destruction that more bending motions are brought, increase the service life.
The schematical embodiment of the utility model is the foregoing is only, is not limited to model of the present utility model
Enclose.Any those skilled in the art, the made equivalent change on the premise of design of the present utility model and principle is not departed from
Change and change, the scope of the utility model protection all should be belonged to.
Claims (5)
1. a kind of flexible PCB with bending resistance folded structure, it is characterised in that its first end is provided with element region, the element region
Flexible connection section is connected with, the other end connection line area of the flexible connection section, the other end connecting portion of the line areas；
The back side of the element region, which is provided with, strengthens sheet metal, and the sheet metal edge of strengthening has the binding structure bent up；The fixation
The end in portion is provided with tack coat, and the fixed part is provided with folding line and fixing hole；The flexible connection section and the company of line areas
Meet place and be provided with turning, the turning is provided with arc groove, and the sheet metal of bend resistance is provided with below the arc groove.
2. as claimed in claim 1 have bending resistance folded structure flexible PCB, it is characterised in that it is described reinforcement sheet metal be
0.15mm steel disc.
3. there is the flexible PCB of bending resistance folded structure as claimed in claim 2, it is characterised in that the element region and reinforcement
Sheet metal is provided with the second fixing hole.
4. there is the flexible PCB of bending resistance folded structure as claimed in claim 3, it is characterised in that the line areas is provided with
Strengthening course.
5. the flexible PCB with bending resistance folded structure as described in Claims 1-4 any one, it is characterised in that described
The upper surface of element region is coated with high-temp glue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720615904.4U CN206835451U (en) | 2017-05-31 | 2017-05-31 | Flexible PCB with bending resistance folded structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720615904.4U CN206835451U (en) | 2017-05-31 | 2017-05-31 | Flexible PCB with bending resistance folded structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206835451U true CN206835451U (en) | 2018-01-02 |
Family
ID=60772905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720615904.4U Expired - Fee Related CN206835451U (en) | 2017-05-31 | 2017-05-31 | Flexible PCB with bending resistance folded structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206835451U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114900950A (en) * | 2022-05-25 | 2022-08-12 | 广东江粉高科技产业园有限公司 | Bending crack resistant flexible circuit board and design method |
-
2017
- 2017-05-31 CN CN201720615904.4U patent/CN206835451U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114900950A (en) * | 2022-05-25 | 2022-08-12 | 广东江粉高科技产业园有限公司 | Bending crack resistant flexible circuit board and design method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180102 Termination date: 20200531 |