CN109983851A - Flexible circuit board and electronic device - Google Patents
Flexible circuit board and electronic device Download PDFInfo
- Publication number
- CN109983851A CN109983851A CN201780071643.7A CN201780071643A CN109983851A CN 109983851 A CN109983851 A CN 109983851A CN 201780071643 A CN201780071643 A CN 201780071643A CN 109983851 A CN109983851 A CN 109983851A
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- China
- Prior art keywords
- circuit board
- flexible circuit
- groove
- electronic module
- substrate
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Classifications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/14—Structural association of two or more printed circuits
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Structure Of Printed Boards (AREA)
Abstract
A kind of flexible circuit board (1,24), for connecting electronic module (20,22), the flexible circuit board (1,24) includes: fixed part (11), and the fixed part (11) is the flexible circuit board (1,24) it is fixedly connected on the part on the electronic module (20,22)；Interconnecting piece (10), the interconnecting piece (10) are the part between the electronic module (20,22) of the flexible circuit board (1,24)；The fixed part (11) and the interconnecting piece (10) include substrate (13) and protective film (15); the substrate (13) extends in a first direction; the substrate (13) includes the first surface (131) and second surface (132) mutually deviated from, and the protective film (15) is covered in the first surface (131) and second surface (132)；An at least groove (16) is offered on the substrate (13), the groove (16) runs through the first surface (131) and the second surface (132).A kind of electronic device (2) is also provided.Fluted (16) are set on the flexible circuit board (1,24) and electronic device (2), are able to ascend the distortion resistance of flexible circuit board (1,24).
Description
The present invention relates to a kind of flexible circuit board more particularly to a kind of antitorque flexible circuit board and using the electronic device of the flexible circuit board.
Flexible circuit board (Flexible Printed Circuit, FPC) is widely used in connection electronic component or module in electronic device because it has the characteristics that Distribution density is high, light-weight, thickness is thin, bending is good.When two electronic component modules for being used to connect need to be mutually shifted in the process of running, when being especially displaced sideways, cause the lateral torsion to the flexible circuit board, the lateral distortion power easily causes the coupling part of flexible circuit board and electronic component module to fall off or damage, or damages the wire rod of flexible circuit board.
Summary of the invention
In view of this, it is necessary to provide a kind of flexible circuit board for being able to solve the above problem and using the electronic device of the flexible circuit board.
A kind of flexible circuit board, for connecting multiple electronic modules, comprising:
Fixed part, the fixed part are that the flexible circuit board is fixed on the part on the electronic module；
Interconnecting piece, the interconnecting piece are the part between the electronic module of the flexible circuit board；
The fixed part and the interconnecting piece include substrate and protective film, and the substrate extends in a first direction, and the substrate includes the first surface and second surface mutually deviated from, and the protective film is covered in the first surface and second surface；
An at least groove is offered on the substrate of the interconnecting piece, the groove runs through the first surface and the second surface.
Further, the substrate is generally rectangular, and the first direction is the rectangular length
Direction.
Further, the extending direction of the groove and the first direction are substantially parallel.
Further, the quantity of the groove is multiple, and the extending direction of multiple grooves is substantially parallel.
Further, the quantity of the groove is multiple, is spaced setting on the substrate along the first direction.
Further, the groove includes the groove extended in a second direction and the groove along third direction extension, and the second direction and third direction are not parallel.
Further, the second direction and the angular range of the third direction are 10 ° -90 °.
Further, the second direction and the first direction are substantially parallel, and third direction is substantially vertical with the first direction.
Further, intersect along the groove that the second direction extends with the groove extended along the third direction.
Further, non-intersecting along the second direction groove extended and the groove that extends along the third direction.
Further, flexible filler is filled in the groove.
Further, the filler is silica gel.
Further, the groove is generally rectangular, and length direction is roughly parallel to the first direction.
Further, the width of the groove is 0.3-5 millimeters.
Further, the fixed part includes two interfaces, is respectively used to two electronic modules of connection, and two interface is separately positioned on two opposite end of interconnecting piece, and two opposite end is located on the length direction of the substrate.
A kind of electronic device, including the first electronic module and the second electronic module, first electronic module can be mobile relative to second electronic module, and first electronic module is connect with second electronic module by flexible circuit board, and the flexible circuit board is the upper flexible circuit board.
Further, the electronic device is laser radar or laser range finder.
Further, first electronic module is optical receiver module, and second electronic module is optical transmitter module.
The flexible circuit board and electronic device open up fluted on it, can deform in the groove when the flexible circuit board is by lateral distortion power to weaken or avoid lateral distortion power may make
At damage.
Fig. 1 is the structural schematic diagram of the flexible circuit board of one embodiment of the invention.
Fig. 2 is the structural schematic diagram at another visual angle of flexible circuit board of one embodiment of the invention.
Fig. 3 is the partial structure diagram of the electronic device of one embodiment of the invention.
Fig. 4 is the schematic diagram that the electronic module of one embodiment of the invention is mutually shifted.
Main element symbol description
The present invention that the following detailed description will be further explained with reference to the above drawings.
Following will be combined with the drawings in the embodiments of the present invention, and technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not doing
Every other embodiment obtained under the premise of creative work out, shall fall within the protection scope of the present invention.
It should be noted that it can be directly on another component or there may also be components placed in the middle when component is referred to as " being fixed on " another component.When a component is considered as " connection " another component, it can be directly to another component or may be simultaneously present component placed in the middle.When a component is considered as " being set to " another component, it, which can be, is set up directly on another component or may be simultaneously present component placed in the middle.Term as used herein "vertical", "horizontal", "left" and "right" and similar statement are for illustrative purposes only.
Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.Term as used herein in the specification of the present invention, which is only for the purpose of describing specific embodiments, is not intended to limit the present invention.Term " and or " used herein includes any and all combinations of one or more related listed items.
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, specific embodiments of the present invention will be described in detail with reference to the accompanying drawing.Wherein, combination schematic diagram of the embodiment of the present invention is described in detail, when describing the embodiments of the present invention; for ease of illustration; indicate that the sectional view of device architecture can disobey general proportion and make partial enlargement, and the schematic diagram is example, should not limit the scope of protection of the invention herein.
Flexible circuit board is also known as " FPC flexible board ", is the printed circuit made of insulating substrate flexible, is mainly used in the connecting portion of electronic product, such as flex cable, liquid crystal module, the optical-electric module of laser radar etc..Usual flexible circuit board includes with flexible substrate made of the materials such as polyimides or polyester film, by transparent adhesive tapes such as polyethylene or epoxy resin, the copper foil layer on the flexible substrate is set, it is etched to form circuit on the copper foil layer, circuit includes pad and lead.Protective layer is also covered on copper foil layer further to promote the rigidity of flexible circuit board.Since substrate of flexible circuit board is soft board, therefore there is flexibility.Flexible circuit board usually passes through welding and is connected with the electronic module of electronic device to realize two electronic modules for being electrically connected electronic device.If two electronic modules need to relatively move in the operational process of electronic device, the flexible circuit board of two electronic modules of connection will receive the distortion power that relative movement is brought.To avoid flexible circuit board from being damaged because of distortion power, usually by increasing the redundancy of arrangement of conductors on flexible circuit board or increasing conducting wire line width to reduce flexible circuit board, however, if the distortion power that flexible circuit board is subject to is (i.e. lateral) of its width direction, the connecting portion of the electronic module of flexible circuit board and electronic device will receive distortion power first, and the wire rod on flexible circuit board also will receive equidirectional distortion
Power, in order to avoid the adverse effect caused by the flexible circuit board of this distortion power, the flexible circuit board of this exposure opens up groove on it, when flexible circuit board is by distortion power, can the groove deformation occurs to weaken or eliminate distortion power caused by adverse effect.
It as shown in Figs.1 and 2, is the structural schematic diagram of the flexible circuit board 1 of one embodiment of the invention.The flexible circuit board 1 includes interconnecting piece 10 and fixed part 11, and the fixed part 11 includes the first end 12 and second end 14 being oppositely arranged, and the first end 12 and the second end 14 are located on the extending direction (first direction) of the substrate 13.The first end 12 and the second end 14 are electrically connected two electronic modules.In some embodiments, the fixed part 11 is connect for connecting electronic module, and by modes such as welding with electronic module.The interconnecting piece 10 is the flexible circuit board part being arranged between the electronic module, for connecting the first end 12 and the second end 14.
The interconnecting piece 10 and fixed part 11 of the flexible circuit board 1 include substrate 13 and protective film 15.The substrate 13 is generally rectangular, extends along first direction (rectangular length direction).It is understood that in other embodiments, the shape of the substrate 13 can be any other suitable shape, such as T shape, bents such as L shape/door shape etc..The substrate 13 includes first surface 131 and the second surface 132 opposite with the first surface 131.The protective film 15 is covered in the first surface 131 and the second surface 132.In practical applications, the shape of the substrate 13 can need to be arranged to specific shape according to connection.For ease of description, being illustrated by taking rectangular substrate 13 as an example in following embodiments.
The groove 16 through the first surface 131 and the second surface 132 is offered on the interconnecting piece 10, the groove 16 is generally rectangular, and extending direction and the first direction are substantially parallel.The quantity of the groove 16 can be parallel to each other between multiple grooves 16 to be multiple.The fixed part 11 is not provided with the groove 16.
When the quantity of the groove 16 is multiple, the substrate 13 is divided into a plurality of branch 100 by the groove 16, and the wire rod of the flexible circuit board 1 passes through one or more branch, 100 cabling therein.That is, the wire rod of the flexible circuit board 1 can in all branches 100 equal cabling, can also the only cabling in wherein one or partial branch 100.
In some embodiments, the wire rod of the flexible circuit board 1 passes through the branch cabling near the flexible circuit board side.For example, the branch cabling near 1 left side of flexible circuit board and/or right side.Such cabling mode can further promote the distortion resistance and anti-electromagnetic interference capability of wire rod.
In some embodiments, the wire rod of the flexible circuit board 1 is spaced cabling in a plurality of branch.
An only branch cabling in i.e. every two adjacent branches.The anti-electromagnetic interference capability between wire rod can be improved in interval cabling.
It is understood that in other embodiments, the quantity of the groove 16 may be one.
It is understood that in other embodiments, the shape of the groove 16 is also possible to the curved shapes such as other shapes, such as S-shaped.
It is understood that in other embodiments, the groove 16 can also include the first groove extended in a second direction and the second groove along third direction extension, and the second direction and the third direction are not parallel.
It is understood that in some embodiments, first groove and second groove can intersect, multiple first grooves and second groove can intersect in netted.Angle between the second direction and the third direction can be between 10 degree to 90 degree, such as 10 degree, 15 degree, 20 degree, 25 degree, 30 degree, 35 degree, 40 degree, 45 degree, 50 degree, 55 degree, 60 degree, 65 degree, 70 degree, 75 degree, 80 degree, 85 degree, 90 degree etc..
It is understood that in other embodiments, first groove and second groove can also be non-intersecting, for example, the first groove is the groove for being parallel to the first direction setting, it is arranged between the first end 12 and the second end 14；Second groove is the transverse concave groove perpendicular to the first direction, is arranged close to the first end 12 or the second end 14.
It is understood that can also be arranged along the first direction interval of the substrate 13 when the quantity of the groove 16 is multiple.At this point, first groove and second groove can be arranged with space crossings.
It is understood that can also filling flexible material, the flexible material can be silica gel or flexible plastic cement or elastic metallic material etc. in the groove 16 to further increase the flexibility and resistance to torsion of the flexible circuit board 1.
It can be understood that, the deformation space that narrow groove can be provided is limited, wide groove can weaken the rigidity of flexible circuit board, therefore, the width of the groove 16 preferably may be configured as 0.3-5 millimeters, such as 0.5 millimeter, 0.6 millimeter, 0.7 millimeter, 0.8 millimeter, 0.9 millimeter, 1 millimeter, 2 millimeters, 3 millimeters, 4 millimeters etc..It is understood that the width of the groove can also be adaptively adjusted according to actual needs.When the quantity of the groove 16 is multiple, the spacing between adjacent grooves is preferably greater than or equal to the width of the groove.
It is understood that also settable protective film, the protective film can not open up groove on the substrate 13 of the flexible circuit board 1.It is understood that in some embodiments, the protective film can also be
Groove is opened up at the corresponding groove 16.
The flexible circuit board 1 can be applied to various electronic devices, such as mobile phone, plate, notebook, desktop computer, laser radar, laser range finder etc., since the flexible circuit board 1 is provided with the groove 16, its lateral resistance to torsion greatly promotes, if in electronic device operation, it is mutually shifted by the flexible circuit board 1 two electronic module interconnected, the lateral anti-twisting property of the flexible circuit board 1 can be greatly enhanced.
It please refers to shown in Fig. 3, is a kind of part of module schematic diagram of the electronic device 2 of illustration.The electronic device 2 includes the first electronic module 20 and the second electronic module 22, and the flexible circuit board 24 of connection first electronic module 20 and second electronic module 22.The structure of the flexible circuit board 1 in the embodiment of Fig. 1, including first end 240, second end 242, and the groove 244 being provided between the first end 240 and the second end 242 can be used in the flexible circuit board 24.It is understood that the above-mentioned specific descriptions to flexible circuit board 1, including being suitable for flexible circuit board 24 and its first end 240, second end 242 and groove 244 to being described for its first end 12, second end 14 and groove 16, details are not described herein.
First electronic module 20 can move on three-dimensional relative to second electronic module 22, such as the movement on tri- directions X, Y, Z shown in figure.When first electronic module 20 is mobile to Y-axis relative to second electronic module 22, the flexible circuit board 24 will be by lateral distortion power (as shown in Figure 4), at this time, according to common flexible circuit board, then the lateral distortion power may be damaged the wire rod in the fixed part (the i.e. described first end 240 and the second end 242) of the flexible circuit board 24 and first electronic module 20 or second electronic module 22, or the damage flexible circuit board 24.Due to being provided with the groove 244 on the flexible circuit board 24 in this exposure, when the flexible circuit board 24 is by lateral distortion power, the flexible circuit board 24 can generate deformation at the groove 244, the torsional forces of wire segment of the abated effect in the coupling part or the flexible circuit board 24, to promote the anti-twisting property of the flexible circuit board 24.
In one embodiment, the electronic device 2 is laser radar or rangefinder, first electronic module can be optical receiver module, second module can be optical transmitter module or lens, the optical receiver module needs constantly to adjust position during the work time to guarantee photoelectric device photosurface in the near focal point of lens and corresponding with Laser emission position, to obtain best optical signal reception, when relatively described second module of the optical receiver module is in X, when being moved in Y-direction, the flexible circuit board 24 can bend to support the optical receiver module in X, movement in Y-direction, and movement in z-direction, then by described
The groove being arranged on flexible circuit board 24 fights lateral distortion to realize.
In some embodiments, the flexible circuit board is connected with each other by multiple small flexible circuit boards, and each small flexible circuit board is substantially in a strip shape, or is needed to be bent into specific shape according to layout.At this point it is possible to which an at least groove is arranged in the bending place of each small flexible circuit board, the upper groove is opened up on at least flexible circuit board to promote the buckle resistance of bending place, while in multiple small flexible circuit boards.
It can be understood that, the upper groove is the groove through the flexible circuit board upper and lower surface, in other embodiments, the groove not through the flexible circuit board also can be set into the groove, i.e., the described groove is provided on the flexible circuit board on any surface.
In addition, for those of ordinary skill in the art, various other changes and modifications can be made in accordance with the technical idea of the present invention, and all these changes and deformation all should belong to the protection scope of the claims in the present invention.
Claims (22)
- A kind of flexible circuit board, for connecting electronic module, which is characterized in that the flexible circuit board includes:Fixed part, the fixed part are that the flexible circuit board is fixedly connected on the part on the electronic module；Interconnecting piece, the interconnecting piece are the part between the electronic module of the flexible circuit board；The fixed part and the interconnecting piece include substrate and protective film, and the substrate extends in a first direction, and the substrate includes the first surface and second surface mutually deviated from, and the protective film is covered in the first surface and second surface；An at least groove is offered on the substrate of the interconnecting piece, the groove runs through the first surface and the second surface.
- Flexible circuit board as described in claim 1, which is characterized in that the substrate is generally rectangular, and the first direction is the rectangular length direction.
- Flexible circuit board as described in claim 1, which is characterized in that the extending direction of the groove and the first direction are substantially parallel.
- Flexible circuit board as described in claim 1, which is characterized in that the quantity of the groove is multiple, and the extending direction of multiple grooves is substantially parallel.
- Flexible circuit board as described in claim 1, which is characterized in that the quantity of the groove be it is multiple, be spaced setting on the substrate along the first direction.
- Flexible circuit board as claimed in claim 5, which is characterized in that the substrate is divided into a plurality of branch by the groove, and the wire rod of the flexible circuit board passes through one or more branch cabling therein.
- Flexible circuit board as claimed in claim 6, which is characterized in that the wire rod of the flexible circuit board passes through the branch cabling near the flexible circuit board side.
- Flexible circuit board as claimed in claim 6, which is characterized in that the wire rod of the flexible circuit board is spaced cabling in a plurality of branch.
- Flexible circuit board as described in claim 1, which is characterized in that the groove includes the groove extended in a second direction and the groove along third direction extension, and the second direction and third direction are not parallel.
- Flexible circuit board as claimed in claim 9, which is characterized in that the angular range of the second direction and the third direction is 10 ° -90 °.
- Flexible circuit board as claimed in claim 9, which is characterized in that the second direction and the first direction are substantially parallel, and third direction is substantially vertical with the first direction.
- Flexible circuit board as claimed in claim 9, which is characterized in that the groove extended along the second direction intersects with the groove extended along the third direction.
- Flexible circuit board as claimed in claim 9, which is characterized in that the groove extended along the second direction and the groove extended along the third direction are non-intersecting.
- Flexible circuit board as described in claim 1, which is characterized in that flexible filler is filled in the groove.
- Flexible circuit board as claimed in claim 14, which is characterized in that the filler is silica gel.
- Flexible circuit board as described in claim 1, which is characterized in that the groove is generally rectangular, and length direction is roughly parallel to the first direction.
- Flexible circuit board as claimed in claim 16, which is characterized in that the width of the groove is 0.3-5 millimeters.
- Flexible circuit board as described in claim 1, it is characterized in that, the fixed part includes two interfaces, it is respectively used to two electronic modules of connection, two interface is separately positioned on two opposite end of substrate, and two opposite end is located on the length direction of the substrate.
- Flexible circuit board as described in claim 1, which is characterized in that the protective film does not open up slot accordingly.
- A kind of electronic device, including the first electronic module and the second electronic module, first electronic module can be mobile relative to second electronic module, first electronic module is connect with second electronic module by flexible circuit board, it is characterized in that, the flexible circuit board is the described in any item flexible circuit boards of claim 1-21.
- Electronic device as claimed in claim 20, which is characterized in that the electronic device is laser radar or laser range finder.
- Electronic device as claimed in claim 20, which is characterized in that first electronic module is optical receiver module, and second electronic module is optical transmitter module.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2017/107664 WO2019080006A1 (en) | 2017-10-25 | 2017-10-25 | Flexible circuit board and electronic device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109983851A true CN109983851A (en) | 2019-07-05 |
Family
ID=66246180
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201780071643.7A Pending CN109983851A (en) | 2017-10-25 | 2017-10-25 | Flexible circuit board and electronic device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN109983851A (en) |
| WO (1) | WO2019080006A1 (en) |
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|---|---|---|---|---|
| JPH07288041A (en) * | 1994-04-20 | 1995-10-31 | Matsushita Electric Ind Co Ltd | Flexible flat cable |
| TW201039520A (en) * | 2009-04-28 | 2010-11-01 | Adv Flexible Circuits Co Ltd | Flat signal transmission cable with bundling structure |
| US20110064369A1 (en) * | 2009-09-15 | 2011-03-17 | Kabushiki Kaisha Toshiba | Flexible wiring board, manufacturing method thereof and flexible wiring device |
| CN102082375A (en) * | 2009-11-26 | 2011-06-01 | 三星电子株式会社 | Flat cable |
| CN102480840A (en) * | 2010-11-24 | 2012-05-30 | 富葵精密组件(深圳)有限公司 | Method for manufacturing circuit boards |
| CN105242433A (en) * | 2015-10-22 | 2016-01-13 | 深圳市华星光电技术有限公司 | Curved-surface display module and electronic equipment |
| 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 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3888037B2 (en) * | 2000-06-20 | 2007-02-28 | セイコーエプソン株式会社 | Semiconductor device |
| JP4136695B2 (en) * | 2003-02-10 | 2008-08-20 | 住友電工プリントサーキット株式会社 | Flexible printed circuit board |
| JP2008028276A (en) * | 2006-07-25 | 2008-02-07 | Nec Saitama Ltd | Flexible printed board, electronic equipment with the same mounted thereon, and method for folding up the same |
| CN107065083B (en) * | 2017-03-31 | 2020-06-05 | 武汉博昇光电股份有限公司 | Multichannel optical transceiving integrated module |
-
2017
- 2017-10-25 CN CN201780071643.7A patent/CN109983851A/en active Pending
- 2017-10-25 WO PCT/CN2017/107664 patent/WO2019080006A1/en active Application Filing
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07288041A (en) * | 1994-04-20 | 1995-10-31 | Matsushita Electric Ind Co Ltd | Flexible flat cable |
| TW201039520A (en) * | 2009-04-28 | 2010-11-01 | Adv Flexible Circuits Co Ltd | Flat signal transmission cable with bundling structure |
| US20110064369A1 (en) * | 2009-09-15 | 2011-03-17 | Kabushiki Kaisha Toshiba | Flexible wiring board, manufacturing method thereof and flexible wiring device |
| CN102082375A (en) * | 2009-11-26 | 2011-06-01 | 三星电子株式会社 | Flat cable |
| CN102480840A (en) * | 2010-11-24 | 2012-05-30 | 富葵精密组件(深圳)有限公司 | Method for manufacturing circuit boards |
| CN105242433A (en) * | 2015-10-22 | 2016-01-13 | 深圳市华星光电技术有限公司 | Curved-surface display module and electronic equipment |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2019080006A1 (en) | 2019-05-02 |
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Application publication date: 20190705 |