CN203608450U - Flexible circuit board - Google Patents
Flexible circuit board Download PDFInfo
- Publication number
- CN203608450U CN203608450U CN201320750257.XU CN201320750257U CN203608450U CN 203608450 U CN203608450 U CN 203608450U CN 201320750257 U CN201320750257 U CN 201320750257U CN 203608450 U CN203608450 U CN 203608450U
- Authority
- CN
- China
- Prior art keywords
- circuit board
- conducting wire
- flexible circuit
- dashpot
- base material
- 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 - Lifetime
Links
- 239000003292 glue Substances 0.000 claims abstract description 20
- 239000000463 material Substances 0.000 claims description 29
- 239000003795 chemical substances by application Substances 0.000 claims description 20
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 5
- 239000000758 substrate Substances 0.000 abstract description 4
- 239000000853 adhesive Substances 0.000 abstract 5
- 230000001070 adhesive effect Effects 0.000 abstract 5
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000005452 bending Methods 0.000 description 26
- 230000000694 effects Effects 0.000 description 8
- 239000000203 mixture Substances 0.000 description 3
- 238000004026 adhesive bonding Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229920006267 polyester film Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
Images
Abstract
The utility model relates to a flexible circuit board. The flexible circuit board comprises a substrate, conductive lines, protection glue and adhesive; the conductive lines are disposed on the substrate, the adhesive is disposed at two sides of each conductive line, the substrate and the conductive lines are bonded together through the adhesive, and the conductive lines and the protection glue are bonded together through the adhesive; and each conductive line is provided with a plurality of buffer slots, and the buffer slots are filled with the adhesive. The buffer slots are arranged to supply the force borne by the flexible circuit board with stress release spaces, so that possibility that the conductive lines are bended and fractured due to stress is reduced, and service lifetime of the flexible circuit board is prolonged.
Description
Technical field
The utility model relates to electronic product field, a kind of flexible circuit board especially using in electronic product.
Background technology
Flexible circuit board (Flexible Printed Circuit, FPC) be commonly called as " soft board ", for the printed circuit board (PCB) that uses flexible insulation base material to make, because it has the multiple advantage that hard printed circuit board does not possess, for example, distribution density is high, lightweight etc., particularly it can free bend, coiling, folding, can require to arrange arbitrarily according to space layout, and can be mobile and flexible arbitrarily at three dimensions, thereby reach integrated that components and parts assembling is connected with wire.Use flexible circuit board can greatly dwindle the volume of electronic product, be suitable for the needs of electronic product to high density, miniaturization, highly reliable future development, therefore, be widely applied.
Figure 1 shows that the schematic top plan view of flexible circuit board in prior art.The schematic cross-section that Fig. 2 is cut along II-II line for flexible circuit board shown in Fig. 1, as shown in Figures 1 and 2, flexible circuit board 10' comprises base material 11', many conducting wire 12', protection glue 13' and sticky work agent 14'.In flexible circuit board 10', many conducting wire 12' are fixed on one of them face of base material 11' by sticky work agent 14', and wherein the cross section of conducting wire 12' is rectangle.The top of base material 11' is provided with one deck protection glue 13', and protection glue 13' covers conducting wire 12', and protection glue 13' is fixed together by gluing work agent 14' and base material 11' and conducting wire 12'.Flexible circuit board 10' in use, likely because repeatedly destroying wherein set conducting wire 12' after bending, can not work flexible circuit board 10' normally, therefore, is necessary existing flexible circuit board to improve.
Utility model content
In view of this, the utility model provides the not flexible circuit board of easy fracture of a kind of its conducting wire.
For achieving the above object; the technical scheme that the utility model provides is as follows: the utility model provides comprising base material, conducting wire, protection glue and gluing work agent of flexible circuit board; described conducting wire is located on described base material; both sides, described conducting wire are located in described sticky outstanding agent; between described base material and described conducting wire and described conducting wire and described protection glue, be bonded together by described sticky outstanding agent, on described conducting wire, offer some dashpots.
In an embodiment of the present utility model, in described dashpot, be filled with the agent of sticky work.
In an embodiment of the present utility model, described dashpot extends along the length direction of described conducting wire.
In an embodiment of the present utility model, described dashpot extends along the Width of described conducting wire.
In an embodiment of the present utility model, described dashpot comprises the dashpot extending along the length direction of described conducting wire and the dashpot extending along the Width of described conducting wire.
In an embodiment of the present utility model, the bearing of trend of described dashpot and the Width of described conducting wire have angle theta, and 0 ° of < θ <90 °.
In an embodiment of the present utility model, the cross section of described conducting wire is pectination, by near the pedestal of described base material one side and be positioned at away from a side and spaced multiple finger protuberance of base material and form, described dashpot is between adjacent finger protuberance, and the opening of described dashpot is towards the side away from described base material.
In an embodiment of the present utility model, the cross section of described dashpot is rectangle or U-shaped.
In an embodiment of the present utility model, the width of the cross section of described dashpot equates with the width of described finger protuberance.
In an embodiment of the present utility model, 1/2 of the height that the height of the cross section of described dashpot is described conducting wire.
Set dashpot on conducting wire in the utility model, can bend in flexible circuit board, for suffered bending stress provides Stress Release space, make conducting wire can reach by referring to the sideways slight bending of protuberance the effect that discharges stress, thereby reduce the possibility rupturing because of stressed bending in conducting wire, extended the useful life of flexible circuit board.
Accompanying drawing explanation
Figure 1 shows that the schematic top plan view of flexible circuit board in prior art.
The schematic cross-section that Fig. 2 is cut along II-II line for flexible circuit board shown in Fig. 1.
Figure 3 shows that the schematic top plan view of flexible circuit board in the utility model the first embodiment.
The schematic cross-section that Fig. 4 is cut along IV-IV line for flexible circuit board shown in Fig. 3.
Figure 5 shows that the schematic top plan view of flexible circuit board in the utility model the second embodiment.
The schematic cross-section that Fig. 6 is cut along VI-VI line for flexible circuit board shown in Fig. 5.
Figure 7 shows that the schematic top plan view of flexible circuit board in the utility model the 3rd embodiment.
The schematic cross-section that Fig. 8 is cut along VII-VII line for flexible circuit board shown in Fig. 7.
Figure 9 shows that the schematic top plan view of flexible circuit board in the utility model the 4th embodiment.
The schematic cross-section that Figure 10 is cut along VIII-VIII line for flexible circuit board shown in Fig. 9.
Embodiment
Technological means and effect of taking for reaching predetermined goal of the invention for further setting forth the utility model, below in conjunction with accompanying drawing and preferred embodiment, to embodiment of the present utility model, structure, feature and effect thereof, be described in detail as follows.
Figure 3 shows that the schematic top plan view of flexible circuit board in the utility model the first embodiment.The schematic cross-section that Fig. 4 is cut along IV-IV line for flexible circuit board shown in Fig. 3.As shown in Figures 3 and 4, flexible circuit board 10 of the present utility model comprises base material 11, many conducting wires 12, protection glue 13 and the agent 14 of sticky work.For extension and the orientation of the dashpot 121 offered on can clearer description conducting wire 12, the sticky outstanding agent 14 and the protection glue 13 that are positioned at 12 tops, conducting wire in Fig. 3, are omitted.
In flexible circuit board 10, base material 11 is made up of the insulating material such as polyimides, polyester film.Be made up of copper or copper alloy conducting wire 12, is generally formed on one of them face of base material 11 by electrolysis or the method that rolls.Protection glue 13 be formed on whole base material above and cover conducting wire 12, for the protection of conducting wire 12.The agent 14 of sticky work is for being bonded in conducting wire 12 on base material 11 and by protection glue 13 and being bonded in base material 11 and conducting wire 12.
Be specifically described for conducting wire 12 structures of flexible circuit board 10 below.
In the utility model, the cross section of each conducting wire 12 is all pectination, it is by near pedestals 122 of base material 11 1 sides and be positioned at away from a side and spaced multiple finger protuberance 123 of base material 11 and form, between every two adjacent finger protuberances 123 and pedestal 122, form dashpot 121, the cross section of dashpot 121 is rectangle, its opening is towards away from base material 11 1 sides, and extend along the length direction (being the bearing of trend of substrate) of conducting wire 12, and multiple dashpot 121 is arranged along the Width of conducting wire 12.In the present embodiment, on each conducting wire 12, the quantity of set dashpot 121 is three, in other embodiments, the number of dashpot also can be set according to the reasonable wide of conducting wire 12.Distance W 1 (being the width of each dashpot 121) between the width D 1 of each finger protuberance 123 and adjacent two finger protuberances 123 equates.Respectively refer to that the height H 1(of protuberance 123 is the height of each dashpot 121) for 1/2 of the height of conducting wire 12, respectively refer to that the height of protuberance 123 equates with the height of pedestal 122.In the manufacture process of flexible circuit board 10, the agent 14 of sticky work can be filled in dashpot 121, to protect each finger protuberance 123, prevents that it from excessively bending or fractureing because of stressed.
In the present embodiment, the cross section of each dashpot 121 is rectangle, in other embodiments, the cross section of each dashpot 121 can be also other shapes, and as U-shaped, dashpot 121 can not form right angle near the bottom of pedestal 122, its both sides are arc line shaped, have level and smooth excessively.
When flexible circuit board 10 is in the time that bending occurs conducting wire 12 Widths, dashpot 121 provides Stress Release space for the suffered bending stress of flexible circuit board Width, make conducting wire 12 can reach by referring to the sideways slight bending of protuberance 123 effect that discharges stress, thereby reduce the possibility rupturing because of stressed bending in conducting wire, extended the useful life of flexible circuit board.
Figure 5 shows that the schematic top plan view of flexible circuit board in the utility model the second embodiment.The schematic cross-section that Fig. 6 is cut along VI-VI line for flexible circuit board shown in Fig. 5.As shown in Figures 5 and 6; the basic composition structure of the flexible circuit board 10 in this execution mode and the structural similarity of the first embodiment; all comprise base material 11, conducting wire 12, protection glue 13 and the agent 14 of sticky work; same; for extension and orientation that can clearer description dashpot 321, the sticky outstanding agent 14 and the protection glue 13 that are positioned at 12 tops, conducting wire in this figure, be omitted.Its difference is, in the present embodiment, the quantity of the dashpot 321 of conducting wire 12 is much larger than three, and extends along the Width of conducting wire 12, and the plurality of dashpot 321 is arranged along the length direction of conducting wire 12.In the present embodiment, the cross section of dashpot 321 can be rectangle or U-shaped equally, when flexible circuit board 10 is in the time that bending occurs the length direction of conducting wire 12, dashpot 321 provides Stress Release space for the suffered bending stress of flexible circuit board length direction, make conducting wire 12 can reach by referring to the sideways slight bending of protuberance 323 effect that discharges stress, thereby reduce the possibility rupturing because of stressed bending in conducting wire, extended the useful life of flexible circuit board.
Figure 7 shows that the schematic top plan view of flexible circuit board in the utility model the 3rd embodiment.The schematic cross-section that Fig. 8 is cut along VII-VII line for flexible circuit board shown in Fig. 7.As shown in Figures 7 and 8; the basic composition structure of the flexible circuit board 10 in this execution mode and the structural similarity of the first embodiment; all comprise base material 11, conducting wire 12, protection glue 13 and the agent 14 of sticky work; same; for extension and orientation that can clearer description dashpot 421, the sticky outstanding agent 14 and the protection glue 13 that are positioned at 12 tops, conducting wire in this figure, be omitted.Its difference is, in the present embodiment, the quantity of the dashpot 421 of conducting wire 12 is much larger than three, these dashpots 421 and refer to the bearing of trend of protuberance 423 and the Width of conducting wire 12 has certain angle theta, and the value of angle theta at 0 degree between 90 degree.Meanwhile, each dashpot 421 and refer to that protuberance 423 arranges along the length direction of conducting wire 12.When flexible circuit board 10 is in the time that bending occurs the direction with respect to the Width of conducting wire 12 with certain angle of inclination, dashpot 421 provides Stress Release space for the suffered bending stress of this direction of flexible circuit board, make conducting wire 12 can reach by referring to the sideways slight bending of protuberance 423 effect that discharges stress, thereby reduce the possibility rupturing because of stressed bending in conducting wire, extended the useful life of flexible circuit board.
Figure 9 shows that the schematic top plan view of flexible circuit board in the utility model the 4th embodiment.The schematic cross-section that Figure 10 is cut along VIII-VIII line for flexible circuit board shown in Fig. 9.As shown in FIG. 9 and 10; the basic composition structure of the flexible circuit board 10 in this execution mode and the structural similarity of the first embodiment; all comprise base material 11, conducting wire 12, protection glue 13 and the agent 14 of sticky work; same; for extension and orientation that can clearer description dashpot 521, the sticky outstanding agent 14 and the protection glue 13 that are positioned at 12 tops, conducting wire in this figure, be omitted.Its difference is, in the present embodiment, dashpot comprises that the dashpot 521 extending along the Width of conducting wire 12 also comprises the dashpot 525 extending along the length direction of conducting wire 12, correspondingly, refer to that protuberance had both comprised that the finger protuberance 523 extending along the Width of conducting wire 12 also comprised the finger protuberance 527 extending along the length direction of conducting wire 12.In the present embodiment, the dashpot 521 that every two Widths along conducting wire 12 extend forms a horizontal expansion dashpot group, the dashpot 525 that every two length directions along conducting wire 12 extend forms a longitudinal buffer groove group, and longitudinal buffer groove group and laterally dashpot group are staggered on the length direction of conducting wire 12.The number of dashpot in each longitudinal extension dashpot group and horizontal expansion dashpot group also can be rationally set according to the width of conducting wire 12 and length in other embodiments.The cross section of dashpot 521 can be rectangle or U-shaped equally, when flexible circuit board 10 is in the time that bending occurs for the length of conducting wire 12 or Width, dashpot 521 both can also can provide Stress Release space for the suffered bending stress of flexible circuit board Width for the suffered bending stress of flexible circuit board length direction provides Stress Release space, make conducting wire 12 can reach by referring to the sideways slight bending of protuberance 523 effect that discharges stress, thereby reduce the possibility rupturing because of stressed bending in conducting wire, extend the useful life of flexible circuit board.
From narrating above, set dashpot on conducting wire in the utility model, can there is bending in flexible circuit board a direction time, for the party upwards suffered bending stress Stress Release space is provided, make conducting wire can reach by referring to the sideways slight bending of protuberance the effect that discharges stress, thereby reduce the possibility rupturing because of stressed bending in conducting wire, extended the useful life of flexible circuit board.
The above, it is only preferred embodiment of the present utility model, not in order to limit the utility model, any those skilled in the art, do not departing within the scope of technical solutions of the utility model, when can utilizing the technology contents of above-mentioned announcement to make a little change or being modified to the equivalent embodiment of equivalent variations, in every case be not depart from technical solutions of the utility model content, any simple modification, equivalent variations and the modification above embodiment done according to technical spirit of the present utility model, all still belong in the scope of technical solutions of the utility model.
Claims (10)
1. a flexible circuit board; comprise base material, conducting wire, protection glue and the agent of sticky work; described conducting wire is located on described base material; between described base material and described conducting wire and described conducting wire and described protection glue, be bonded together by described sticky outstanding agent, it is characterized in that: on described conducting wire, offer dashpot.
2. flexible circuit board as claimed in claim 1, is characterized in that: in described dashpot, be filled with the agent of sticky work.
3. flexible circuit board as claimed in claim 1, is characterized in that: described dashpot extends along the length direction of described conducting wire.
4. flexible circuit board as claimed in claim 1, is characterized in that: described dashpot extends along the Width of described conducting wire.
5. flexible circuit board as claimed in claim 1, is characterized in that: described dashpot comprises the dashpot extending along the length direction of described conducting wire and the dashpot extending along the Width of described conducting wire.
6. flexible circuit board as claimed in claim 1, is characterized in that: the bearing of trend of described dashpot and the Width of described conducting wire have angle theta, and 0 ° of < θ <90 °.
7. flexible circuit board as claimed in claim 1, it is characterized in that: the cross section of described conducting wire is pectination, by near the pedestal of described base material one side and be positioned at away from a side and spaced multiple finger protuberance of base material and form, described dashpot is between adjacent finger protuberance, and the opening of described dashpot is towards the side away from described base material.
8. flexible circuit board as claimed in claim 7, is characterized in that: the cross section of described dashpot is rectangle or U-shaped.
9. flexible circuit board as claimed in claim 7, is characterized in that: the width of the cross section of described dashpot equates with the width of described finger protuberance.
10. flexible circuit board as claimed in claim 7, is characterized in that: 1/2 of the height that the height of the cross section of described dashpot is described conducting wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320750257.XU CN203608450U (en) | 2013-11-25 | 2013-11-25 | Flexible circuit board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320750257.XU CN203608450U (en) | 2013-11-25 | 2013-11-25 | Flexible circuit board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203608450U true CN203608450U (en) | 2014-05-21 |
Family
ID=50721103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320750257.XU Expired - Lifetime CN203608450U (en) | 2013-11-25 | 2013-11-25 | Flexible circuit board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203608450U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105242802A (en) * | 2014-07-09 | 2016-01-13 | 宸鸿科技(厦门)有限公司 | Touch module and flexible circuit board thereof |
| CN105578721A (en) * | 2015-12-29 | 2016-05-11 | 广东欧珀移动通信有限公司 | Flexible circuit board and mobile terminal |
| CN106488649A (en) * | 2016-11-15 | 2017-03-08 | 智恩电子(大亚湾)有限公司 | A kind of anti-fracture printed wiring board |
| CN108700759A (en) * | 2016-03-30 | 2018-10-23 | 住友大阪水泥股份有限公司 | Optical modulator with FPC and the light sending device for having used the optical modulator |
| CN108831589A (en) * | 2018-06-27 | 2018-11-16 | 云谷（固安）科技有限公司 | Conductor structure, display device and conductor structure preparation method |
-
2013
- 2013-11-25 CN CN201320750257.XU patent/CN203608450U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105242802A (en) * | 2014-07-09 | 2016-01-13 | 宸鸿科技(厦门)有限公司 | Touch module and flexible circuit board thereof |
| CN105242802B (en) * | 2014-07-09 | 2018-08-07 | 宸鸿科技(厦门)有限公司 | Touch-control module and its flexible circuit board |
| CN105578721A (en) * | 2015-12-29 | 2016-05-11 | 广东欧珀移动通信有限公司 | Flexible circuit board and mobile terminal |
| CN108700759A (en) * | 2016-03-30 | 2018-10-23 | 住友大阪水泥股份有限公司 | Optical modulator with FPC and the light sending device for having used the optical modulator |
| CN108700759B (en) * | 2016-03-30 | 2022-06-24 | 住友大阪水泥股份有限公司 | Optical modulator with FPC and optical transmission device using the same |
| CN106488649A (en) * | 2016-11-15 | 2017-03-08 | 智恩电子(大亚湾)有限公司 | A kind of anti-fracture printed wiring board |
| CN106488649B (en) * | 2016-11-15 | 2022-01-25 | 智恩电子(大亚湾)有限公司 | Anti-fracture printed circuit board |
| CN108831589A (en) * | 2018-06-27 | 2018-11-16 | 云谷（固安）科技有限公司 | Conductor structure, display device and conductor structure preparation method |
| CN108831589B (en) * | 2018-06-27 | 2020-03-06 | 云谷（固安）科技有限公司 | Wire structure, display device and wire structure preparation method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 215301, 1, Longteng Road, Kunshan, Jiangsu, Suzhou Patentee after: Kunshan Longteng Au Optronics Co. Address before: 215301, 1, Longteng Road, Kunshan, Jiangsu, Suzhou Patentee before: INFOVISION OPTOELECTRONICS (KUNSHAN) Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140521 |
|
| CX01 | Expiry of patent term |