CN101483969B - Reinforcing structure for flexible circuit board - Google Patents
Reinforcing structure for flexible circuit board Download PDFInfo
- Publication number
- CN101483969B CN101483969B CN2008100004416A CN200810000441A CN101483969B CN 101483969 B CN101483969 B CN 101483969B CN 2008100004416 A CN2008100004416 A CN 2008100004416A CN 200810000441 A CN200810000441 A CN 200810000441A CN 101483969 B CN101483969 B CN 101483969B
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- CN
- China
- Prior art keywords
- circuit board
- flexible circuit
- reinforcing structure
- extension component
- stiffening plate
- 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 invention provides a flexible circuit board strengthening structure which includes a flexible circuit board and a reinforcing plate. The flexible circuit board side has at least one extended accessory, and the reinforcing plate is stacked on the surface of the extended accessory. The reinforcing plate is concave set with a gap corresponding to an extended direction position of the extended accessory for reducing centralizing between the reinforcing plate and the extended accessory of the flexible circuit board, creating cross-section shearing stress and increasing intension of the flexible circuit board.
Description
Technical field
What the present invention relates to is a kind of flexible circuit board, and finger carries out a kind of reinforcing structure for flexible circuit board that reinforcement designs in the zone that flexible circuit board easily produces concentrated stress especially.
Background technology
Along with science and technology fast-developing with the human life quality day by day promote following, the consumption electronic products of each form, comprise palmtop computer, handheld game device, design such as intelligent mobile phone is more and more diversified, product life cycle is also more and more ofer short duration, wherein again with the collapsible market mainstream that is designed to, and in the electronic product of collapsible design, almost all adopt the circuit transmission device of flexible printed wiring board as burst, to have pliability good because of it, characteristics such as light weight and thin thickness are so that it is particularly suitable for being used in is compact, the consumption electronic products of changeable design and the movable structure of tool.
Industry manufacturer is in back segment Liquid Crystal Module (LCM) structural design at present; backlight module (BLM) is the main core product of product; and transport or assembling process in; regular meeting is because operation causes the impaired situation of product component to take place accidentally; wherein; in the flexible printed wiring board part; the be everlasting circuit board place of light emitting module (Light Bar) is provided with the defective that stiffening plate comes reinforced flexible printed circuit board (PCB) undercapacity; yet setting because the part position of flexible printed wiring board may need to destroy or force to yield etc.; can't lay stiffening plate; and cause circuit board after the reinforcement with not have the circuit board thickness of stiffening plate position different; and cause intersection that the stress concentration phenomenon often takes place; especially the most serious with T type parts; usually produce shearing fracture in the case or tear that causing opens circuit the consequence that causes product failure, cause puzzlement and after-sale service cost rising in the product maintenance.
As shown in Figure 1, described existing flexible circuit board 10 has been provided with stiffening plate, and flexible circuit board has an extension component 11 that stiffening plate is not set, when being subjected to side direction external force, described extension component 11 or described flexible circuit board 10 do the time spent, described extension component 11 produces the problem that stress is concentrated because of thickness difference easily with the demarcation line of described flexible circuit board 10, cause flexible circuit board 10 to destroy fracture just as the conduct route of camber line (C), its result will cause described extension component 11 and described flexible circuit board 10 to rupture fully and break away from.
Summary of the invention
Because the defective of prior art the objective of the invention is to propose a kind of reinforced structure of avoiding stress to concentrate, it also can promote the degree of safety and the reliability of the parts junction of light emitting module in the flexible circuit board outside promoting the protection of light emitting module intensity.
For achieving the above object, the present invention proposes a kind of reinforcing structure for flexible circuit board, it includes a flexible circuit board, its side has at least one extension component, and be provided with a stiffening plate in addition, the folded structure of described stiffening plate is different from described extension component position at described flexible circuit board, and described stiffening plate correspondence is concaved with a breach between described extension component bearing of trend; And the both sides angle of cut of described flexible circuit board and described extension component is a lead angle.
This design makes when arranging in pairs or groups a stiffening plate or multi-layer sheet on the flexible circuit board, except described flexible circuit board can keep suitable rigidity with provide the assembling convenience with provide surface mount technology (SMT) operating efficiency, be easier to produce the concentrated zone of stress at flexible circuit board and offer breach, the stressed stress that can utilize this breach to dissipate and concentrating, stress can be shared out equally at other lifting surface area not, so make structure can keep the tough characteristic and the reliability of product.
Description of drawings
Fig. 1 concentrates for existing stress and produces the schematic diagram that destroys;
Fig. 2 is a reinforcing structure for flexible circuit board schematic diagram of the present invention;
Fig. 3 A-Fig. 3 C is a stiffening plate breach sample attitude schematic diagram of the present invention;
Fig. 4 A-Fig. 4 D is a flexible circuit board lead angle sample attitude schematic diagram of the present invention.
Description of reference numerals: 10-flexible circuit board; The 11-extension component; The 20-flexible circuit board; The 30-stiffening plate; The 40-extension component; The 41-hypotenuse; 42-leads fillet; 43-groove lead angle; The 50-breach.
Embodiment
Below in conjunction with accompanying drawing, be described in more detail with other technical characterictic and advantage the present invention is above-mentioned.
See also shown in Figure 2ly, be the schematic diagram of reinforcing structure for flexible circuit board provided by the invention.Described reinforcing structure for flexible circuit board, it mainly is to add reinforced structure on flexible circuit board, its structure includes:
One flexible circuit board 20 and a stiffening plate 30, described flexible circuit board side has at least one extension component 40, described extension component 40 also is a flexible printed wiring board, itself and described flexible circuit board 20 are one of the forming, the back integral body that is shaped is seen, described flexible circuit board 20 should be a T type structure or L type structure with described extension component 40, but shape that can be according to the actual requirements and deciding is not exceeded with embodiment of the present utility model.
Described stiffening plate 30 folded structures are different from described extension component 40 positions at described flexible circuit board 20; and described stiffening plate 30 surfaces have difference in height with the position on described extension component 40 surfaces; described stiffening plate 30 can be lamina or multi-layer sheet; be not subjected to outside destroy with the described flexible circuit board 20 of the rigid protective that increases described flexible circuit board 20; described stiffening plate 30 correspondences are concaved with a breach 50 between described extension component 40 bearing of trends; be the bent angle turning point that described breach 50 is opened in T type or L type structure, and the width of described breach 50 is greater than the width of described extension component 40.
See also again shown in Fig. 3 A-Fig. 3 C, be the breach variation schematic diagram of stiffening plate.Described breach 50 is to be arranged with at described stiffening plate 30, described stiffening plate 30 is recessed into respect to described extension component 40, opening for described breach 50 is consistent with the bearing of trend of described extension component 40, the side form of described breach 50 can be vertical edges (as A among the figure) or hypotenuse (as B among the figure), or irregular (as C among the figure), the shape of described breach 50 designs according to actual needs, do not exceed with present embodiment, the wide more high more pliability in bent angle turning point that can be provided at T type or L type structure of described breach 50 significantly reduces because of flexible circuit board reinforcement rigidity produces stress and concentrates the situation that causes the bent angle turning point to destroy fracture to take place.
See also again shown in Fig. 4 A-Fig. 4 B, be the sample attitude schematic diagram of flexible circuit board lead angle.Concentrate in order to reduce stress equally, the both sides angle of cut of described flexible circuit board and described extension component is provided with lead angle, described lead angle be can be configured as a hypotenuse 41 (as A among the figure) or be configured as one have a radian lead fillet 42 (as B among the figure), perhaps described lead angle can be towards the groove lead angle 43 of flexible circuit board direction indent (as C among the figure), even can be according to the angle equity or the not reciprocity both sides angle of cut (as D among the figure) that is formed in that mainly are subjected to force direction with described lead angle.
The above only is preferred embodiment of the present invention, only is illustrative for the purpose of the present invention, and nonrestrictive.Those skilled in the art is understood, and can carry out many changes to it in the spirit and scope that claim of the present invention limited, revise, even equivalence, but all will fall within the scope of protection of the present invention.
Claims (8)
1. reinforcing structure for flexible circuit board, it includes: a flexible circuit board is characterized in that: described flexible circuit board side has at least one extension component; And
One stiffening plate, its folded structure differs from the surface of described extension component at described flexible circuit board, and described stiffening plate is concaved with a breach corresponding to the bearing of trend position of described extension component;
And the both sides angle of cut of described flexible circuit board and described extension component is a lead angle.
2. reinforcing structure for flexible circuit board according to claim 1 is characterized in that: described stiffening plate is lamina or multi-layer sheet.
3. reinforcing structure for flexible circuit board according to claim 1 is characterized in that: described stiffening plate surface has difference in height with described extension component surface.
4. reinforcing structure for flexible circuit board according to claim 1 is characterized in that: described breach side be hypotenuse, vertical edges and irregular one of them.
5. reinforcing structure for flexible circuit board according to claim 1 is characterized in that: the angle equity or the not reciprocity both sides angle of cut that is formed in of described lead angle.
6. reinforcing structure for flexible circuit board according to claim 1 is characterized in that: described lead angle is for leading fillet.
7. reinforcing structure for flexible circuit board according to claim 1 is characterized in that: described lead angle is the hypotenuse lead angle.
8. reinforcing structure for flexible circuit board according to claim 1 is characterized in that: the width of described breach is greater than the width of described extension component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100004416A CN101483969B (en) | 2008-01-10 | 2008-01-10 | Reinforcing structure for flexible circuit board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100004416A CN101483969B (en) | 2008-01-10 | 2008-01-10 | Reinforcing structure for flexible circuit board |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101483969A CN101483969A (en) | 2009-07-15 |
| CN101483969B true CN101483969B (en) | 2010-08-11 |
Family
ID=40880846
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100004416A Expired - Fee Related CN101483969B (en) | 2008-01-10 | 2008-01-10 | Reinforcing structure for flexible circuit board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101483969B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105934092A (en) * | 2016-05-31 | 2016-09-07 | 广东欧珀移动通信有限公司 | Assembled flexible circuit board |
| CN109445154A (en) * | 2018-12-17 | 2019-03-08 | 武汉华星光电半导体显示技术有限公司 | A kind of display panel |
| CN113905502B (en) * | 2021-05-29 | 2022-08-12 | 荣耀终端有限公司 | Circuit board assembly, manufacturing method and electronic equipment |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2757494Y (en) * | 2004-12-01 | 2006-02-08 | 群康科技(深圳)有限公司 | Soft circuit board |
| CN101346035A (en) * | 2007-07-13 | 2009-01-14 | 富葵精密组件(深圳)有限公司 | Flexible circuit board |
-
2008
- 2008-01-10 CN CN2008100004416A patent/CN101483969B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2757494Y (en) * | 2004-12-01 | 2006-02-08 | 群康科技(深圳)有限公司 | Soft circuit board |
| CN101346035A (en) * | 2007-07-13 | 2009-01-14 | 富葵精密组件(深圳)有限公司 | Flexible circuit board |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2002-50833A 2002.02.15 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101483969A (en) | 2009-07-15 |
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Granted publication date: 20100811 Termination date: 20150110 |
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| EXPY | Termination of patent right or utility model |