CN203675434U - Anti-folding rigid-flexible circuit board - Google Patents
Anti-folding rigid-flexible circuit board Download PDFInfo
- Publication number
- CN203675434U CN203675434U CN201420028272.8U CN201420028272U CN203675434U CN 203675434 U CN203675434 U CN 203675434U CN 201420028272 U CN201420028272 U CN 201420028272U CN 203675434 U CN203675434 U CN 203675434U
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- Prior art keywords
- rigid
- flexible
- folding
- region
- circuit board
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- Expired - Fee Related
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- 230000002742 anti-folding effect Effects 0.000 title claims abstract description 39
- 238000005452 bending Methods 0.000 abstract description 5
- 229910000831 Steel Inorganic materials 0.000 abstract 2
- 239000010959 steel Substances 0.000 abstract 2
- 238000005336 cracking Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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Abstract
The utility model discloses an anti-folding rigid-flexible circuit board. The anti-folding rigid-flexible circuit board comprises at least two rigid areas and a flexible area arranged between neighboring two rigid areas. The rigid area comprises two layers of rigid plates and a flexible layer arranged between the two layers of rigid plates. The flexible layer extends outwards to the flexible layer of the neighboring rigid areas to form the flexible area; and the inner sides of two steel plates at connection positions of the rigid areas and the flexible area are respectively provided with anti-folding grooves recessed to the rigid areas. According to the utility model, the inner sides of the two steel plates at the connection positions of the rigid areas and the flexible area are respectively provided with the anti-folding grooves recessed to the rigid areas so as to enable the flexible layer at the connection positions to be not contacted with the rigid plates, thus the stress points at the connection points are eliminated. At the moment, the stress points are disposed at the bottoms of the anti-folding grooves, and the anti-folding grooves can limit the bending degree of the flexible layer in the anti-folding grooves, so that the flexible layer is prevented from being fractured at the stress points due to over bending.
Description
Technical field
The present invention relates to rigid-flexible combined circuit board, be specifically related to the rigid-flexible combined circuit board of a kind of anti-folding.
Background technology
Because rigid-flexible combined circuit board can " solid " be installed, improve product reliability, realize highdensity connection between plate and plate, so its market demand sharply increases in recent years, constantly develop and expand.Rigid-flexible combined circuit board generally includes rigid region and flexible region, and rigid region forms by pressing from both sides a flexible layers between two rigid plate conventionally.Flexible region is stretched out by flexible layers and obtains.The flexible layers of rigid region and joint, flexible region, because being subject to the extruding of two rigid plate, is born larger stress, and stress cracking very easily in the time that this place occurs significantly to bend, causes wiring board communication bad.
Summary of the invention
In view of this, the utility model discloses a kind of wiring board that can prevent rigid region and joint, flexible region cracking.
The purpose of this utility model is achieved through the following technical solutions: the rigid-flexible combined circuit board of a kind of anti-folding, comprise at least two rigid regions and be arranged on the flexible region between adjacent two rigid regions, described rigid region comprises two-layer rigid plate and is arranged on the flexible layers between two-layer rigid plate, flexible layers extends out to the flexible layers in adjacent rigid district, form described flexible region, two block plate inner sides of described rigid region and joint, flexible region are respectively equipped with to the anti-folding groove of rigid region depression.
The utility model is respectively equipped with to the anti-folding groove of rigid region depression in two block plate inner sides of rigid region and joint, flexible region, and the flexible layers of joint is not contacted with rigid plate, has eliminated the Ying Lidian of joint.Stress point is now positioned at the bottom of anti-folding groove, and anti-folding groove can limit the bending degree of flexible layers in anti-folding groove, prevents flexible layers overflexing and ruptures at stress point.
Further, described anti-folding slot length rigid region is consistent with joint, flexible region length; The radial section of described anti-folding groove is rectangle.
The anti-folding groove processing of rectangle is the easiest, and itself and the contact area maximum of flexible layers, is conducive to dispersion and is applied to the stress on stress point.
Further, the degree of depth of described anti-folding groove is 4:3-5:4 with the ratio of width.The width of described anti-folding groove is 1:10-1:15 with the ratio of flex plate thickness.
Under the prerequisite of aforementioned proportion, can farthest limit the bending angle of flexible layers, prevent its overflexing and rupture.
The utility model is respectively equipped with to the anti-folding groove of rigid region depression in two block plate inner sides of rigid region and joint, flexible region, and the flexible layers of joint is not contacted with rigid plate, has eliminated the Ying Lidian of joint.Stress point is now positioned at the bottom of anti-folding groove, and anti-folding groove can limit the bending degree of flexible layers in anti-folding groove, prevents flexible layers overflexing and ruptures at stress point.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
For the ease of it will be appreciated by those skilled in the art that below in conjunction with accompanying drawing and embodiment, the utility model is described in further detail:
Embodiment 1
The present embodiment provides a kind of anti-folding rigid-flexible combined circuit board, comprise two rigid regions 1 and be arranged on the flexible region 2 between adjacent two rigid regions 1, described rigid region 1 comprises two-layer rigid plate 11 and is arranged on the flexible layers 12 between two-layer rigid plate, flexible layers 12 extends out to the flexible layers in adjacent rigid district, form described flexible region 2, two block plate inner sides of described rigid region and joint, flexible region are respectively equipped with to the anti-folding groove 3 of rigid region depression.
Described anti-folding slot length rigid region is consistent with joint, flexible region length; The radial section of described anti-folding groove 3 is rectangle.
The degree of depth of described anti-folding groove is 0.2mm, and width is 0.15mm.
Described flex plate thickness is 15mm.
Be more than wherein specific implementation of the present utility model, it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these apparent replacement forms all belong to protection range of the present utility model.
Claims (4)
1. the rigid-flexible combined circuit board of anti-folding, comprise at least two rigid regions (1) and be arranged on the flexible region (2) between adjacent two rigid regions (1), described rigid region (1) comprises two-layer rigid plate (11) and is arranged on the flexible layers (12) between two-layer rigid plate, flexible layers (12) extends out to the flexible layers in adjacent rigid district, form described flexible region (2), it is characterized in that: two block plate inner sides of described rigid region and joint, flexible region are respectively equipped with to the anti-folding groove (3) of rigid region depression.
2. the rigid-flexible combined circuit board of anti-folding according to claim 1, is characterized in that: described anti-folding slot length rigid region is consistent with joint, flexible region length; The radial section of described anti-folding groove (3) is rectangle.
3. the rigid-flexible combined circuit board of anti-folding according to claim 2, is characterized in that: the degree of depth of described anti-folding groove is 4:3-5:4 with the ratio of width.
4. the rigid-flexible combined circuit board of anti-folding according to claim 3, is characterized in that: the width of described anti-folding groove is 1:10-1:15 with the ratio of flex plate thickness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420028272.8U CN203675434U (en) | 2013-10-24 | 2014-01-17 | Anti-folding rigid-flexible circuit board |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320655743.3 | 2013-10-24 | ||
| CN201320655743 | 2013-10-24 | ||
| CN201420028272.8U CN203675434U (en) | 2013-10-24 | 2014-01-17 | Anti-folding rigid-flexible circuit board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203675434U true CN203675434U (en) | 2014-06-25 |
Family
ID=50971676
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420028272.8U Expired - Fee Related CN203675434U (en) | 2013-10-24 | 2014-01-17 | Anti-folding rigid-flexible circuit board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203675434U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023005111A1 (en) * | 2021-07-27 | 2023-02-02 | 生益电子股份有限公司 | Rigid-flex board and manufacturing method therefor |
-
2014
- 2014-01-17 CN CN201420028272.8U patent/CN203675434U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023005111A1 (en) * | 2021-07-27 | 2023-02-02 | 生益电子股份有限公司 | Rigid-flex board and manufacturing method therefor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210224 Address after: 226000 Haimen Economic and Technological Development Zone, Nantong City, Jiangsu Province, No. 999 Guangzhou Road Patentee after: Nantong Shenghong Technology Co.,Ltd. Address before: Xinqiao village Xingcheng science and Technology Park, Danshui Town, Huiyang District, Huizhou City, Guangdong Province Patentee before: VICTORY GIANT TECHNOLOGY (HUIZHOU) Co.,Ltd. |
|
| 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: 20140625 |