CN102076168B - Double-layer flexible printed circuit board - Google Patents
Double-layer flexible printed circuit board Download PDFInfo
- Publication number
- CN102076168B CN102076168B CN 200910310307 CN200910310307A CN102076168B CN 102076168 B CN102076168 B CN 102076168B CN 200910310307 CN200910310307 CN 200910310307 CN 200910310307 A CN200910310307 A CN 200910310307A CN 102076168 B CN102076168 B CN 102076168B
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- CN
- China
- Prior art keywords
- circuit board
- flexible circuit
- double
- internal layer
- layer flexible
- 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 double-layer flexible printed circuit board which comprises an inner-layer flexible printed circuit board and an outer-layer flexible printed circuit board overlapped with the inner-layer flexible printed circuit board, wherein the inner-layer flexible printed circuit board deviating from the outer-layer flexible printed circuit board is bent to form a bulge. The double-layer flexible printed circuit board also comprises at least one fixing part which is used for fixing the bulge to prevent the bulge from moving along with the movement of the double-layer flexible printed circuit board to be extruded.
Description
Technical field
The present invention relates to the printed substrate field, relate in particular to a kind of flexible circuit board.
Background technology
At present portable type electronic products such as mobile phone, personal digital assistant and notebook computer adopt more and more and renovate and the design of sliding cover type, so that screen can use the gross area of upper module as far as possible and the keyboard of operation is arranged on lower module, reach the target of minimal product volume, maximum screen area.Yet under the requirement of the miniaturization of these portable type electronic products, slimming, flexible circuit board (the Flexible Printed Circuit that connects upper and lower module, flexible circuit board) width also is restricted, and along with the function of portable type electronic product from strength to strength, for example camera function, high-resolution liquid crystal show and memory card etc., make the demand of flexible circuit board line number signal in continuous increase, the double-deck flexible circuit board that therefore can reach same widths, twice line number signal is just arisen at the historic moment.
Existing double-deck flexible circuit board generally is to carry out doubling again after being made into double-width by an individual layer flexible circuit board, make it become the double-deck flexible circuit board of equal length, fit at two ends after the doubling and stamp through hole, and central section keeps the situation that is separated from each other.
Yet, above-mentioned double-deck flexible circuit board generally is only applicable to the flip type portable electronic product, and for the sliding-type portable electronic product, as shown in Figure 1, two ends of this bilayer flexible circuit board 20 be separately fixed at the sliding-type portable electronic product on, the lower module (not shown), because the length of internal layer flexible circuit board 21 and outer flexible circuit board 23 is identical, after bending because of the thickness of this internal layer flexible circuit board 21 and outer flexible circuit board 23 itself cause in the difference of outer radius, internal layer flexible circuit board 21 is less in the length in circular arc district 25, relatively 26 length will be grown than outer flexible circuit board 23 in the linearity sector, thereby forms a projection 211.This projection 211 is in the sliding process of the loam cake of this sliding-type portable electronic product, this projection 211 also can move, it might cause holding wires fracture in this internal layer flexible circuit board 21 because of being squeezed even may fractureing near the end of this bilayer flexible circuit board 20.
Summary of the invention
In view of this, be necessary to provide a kind of double-deck flexible circuit board that is applicable to the sliding-type portable electronic product and can effectively avoids being squeezed wearing and tearing.
A kind of double-deck flexible circuit board, comprise that an internal layer flexible circuit board reaches and this internal layer flexible circuit board equitant one outer flexible circuit board, this internal layer flexible circuit board deviates from this skin flexible circuit board and is bent to form a projection, described double-deck flexible circuit board also comprises at least one fixture, and this fixture should projection be fixed.
Compared to prior art, described double-deck flexible circuit board is fixed the projection of this internal layer flexible circuit board by described fixture, can prevent from thus that this projection from moving in use to be squeezed and to make this bilayer flexible circuit board impaired.
Description of drawings
Fig. 1 is an existing double-deck flexible circuit board three-dimensional assembly diagram.
Fig. 2 is the three-dimensional assembly diagram of the double-deck flexible circuit board of the present invention's first preferred embodiments.
Fig. 3 is that double-deck flexible circuit board shown in Figure 2 is along the cutaway view of III-III line.
Fig. 4 is the three-dimensional assembly diagram of the double-deck flexible circuit board of the present invention's second preferred embodiments.
The component symbol explanation
| (having now) | |
| Double-deck |
20 |
| The internal layer |
21 |
| |
211 |
| Outer |
23 |
| The |
25 |
| The linearity sector | 26 |
| (the present invention) | |
| Double-deck |
10 |
| The internal layer |
11 |
| The |
111、131 |
| |
113 |
| |
115、135 |
| Location hole | 1151、1351 |
| Outer |
13 |
| |
15 |
| Rectangular wall | 151 |
| Arcwall | 153 |
| Containing |
17 |
Embodiment
See also Fig. 2, the double-deck flexible circuit board 10 of the present invention comprises an internal layer flexible circuit board 11 and outer flexible circuit board 13 overlapping forming.This internal layer flexible circuit board 11 has a projection 113, and this bilayer flexible circuit board 10 also comprises a fixture, and this fixture is used for fixing this projection 113.
This internal layer flexible circuit board 11 is a common flexible circuit board, and it roughly bends and is " U " shape, and its two ends have a fit area 111 respectively.This internal layer flexible circuit board 11 deviates from this skin flexible circuit board 13 in abutting connection with a fit area 111 wherein and is bent to form described protruding 113.These projection 113 cross sections are curved.The length of this skin flexible circuit board 13 and width are identical with described internal layer flexible circuit board 11, and should skin flexible circuit board 13 two ends have the fit area 131 corresponding with described internal layer flexible circuit board 11.This skin flexible circuit board 13 is bent into " U " shape roughly the same with described internal layer flexible circuit board 11, and should skin flexible circuit board 13 cover at outside this internal layer flexible circuit board 11, should skin flexible circuit board 13 form a containing cavity 17 with this internal layer flexible circuit board 11 at these projection 113 places thus.The applying of aliging with the fit area 131 at these skin flexible circuit board 13 two ends of the fit area 111 at these internal layer flexible circuit board 11 two ends is so that the two ends of this internal layer flexible circuit board 11 and this skin flexible circuit board 13 interfix.
See also Fig. 3, in the first embodiment of the invention, this fixture is a rubber cushion 15.Described rubber cushion 15 is used for fixing this projection 113.This rubber cushion 15 roughly is strip, and its shape is roughly suitable with described containing cavity 17 shapes, and it is placed in this containing cavity 17.This rubber cushion 15 is surrounded by a rectangular wall 151 and an arcwall 153.This rectangular wall 151 adheres to this skin flexible circuit board 13, and this arcwall 153 adheres to the projection 113 of this internal layer flexible circuit board 11, so should projection 113 fix.
See also Fig. 4, the fixture of the double-deck flexible circuit board 10 of another preferred embodiments of the present invention is the lug 115,135 that forms in this internal layer flexible circuit board 11 and an outer flexible circuit board 13 both sides respectively.Correspondingly, this rubber cushion 15 can omit.
The both sides of described internal layer flexible circuit board 11 are convexly equipped with a lug 115 respectively, and this two lug 115 is in abutting connection with this projection 113 and be positioned at this projection 113 with respect to the opposite side of this fit area 111.This each lug 115 in the form of sheets, its approximate mid-section position connects and offers a location hole 1151, this location hole 1151 is used for when fitting this lug 115 being positioned.
Described outer flexible circuit board 13 both sides convex with two lugs 115, this lug 115 and these lug 135 shapes and measure-alike.This lug 135 from the distance of the fit area 131 that is adjacent less than the distance of this lug 115 from the fit area 111 that is adjacent.After forming described protruding 113 between described lug 115 and this fit area 131, this lug 115, took leave of the fit area 111 that is adjacent in 135 minutes, 131 air line distance equates.Offer location hole 1351 on this lug 135.This location hole 1151,1351 aligns, and a joint tool (not shown) is passed this location hole 1151,1351, so that this lug 115 and 135 is fitted mutually, thereby should projection 113 be fixed between this lug 115 and this fit area 111.
Described double-deck flexible circuit board 10 in use, be connected to the lower module of a portable type electronic product in abutting connection with an end of this projection 113, the other end is connected to the upper module of this portable type electronic product, when this upper module is done when reciprocatingly sliding with respect to this lower module, the end that this bilayer flexible circuit board 10 connects these upper modules also moves reciprocatingly with respect to the other end.Because this projection 113 is fixed, is squeezed and this bilayer flexible circuit board 10 is damaged so can prevent that this projection 113 from moving.
Compared to prior art, described double-deck flexible circuit board 10 is fixed the projection 113 of this internal layer flexible circuit board 11 by described fixture, can prevent that thus the movement in use of this projection 113 is squeezed and makes this bilayer flexible circuit board 10 impaired.
In addition, those skilled in the art also can make various modifications, interpolation and the replacement on other forms and the details in claim of the present invention scope of disclosure and spirit.Certainly, these all should be included within the present invention's scope required for protection according to the variations such as various modifications, interpolation and replacement that spirit of the present invention is made.
Claims (6)
1. double-deck flexible circuit board, comprise that an internal layer flexible circuit board reaches and this internal layer flexible circuit board equitant one outer flexible circuit board, it is characterized in that: this internal layer flexible circuit board deviates from this skin flexible circuit board and is bent to form a projection, described double-deck flexible circuit board also comprises at least one fixture, and this fixture is in order to fix this projection.
2. double-deck flexible circuit board as claimed in claim 1, it is characterized in that: described fixture is a rubber cushion, sticking this projection of being located at of this rubber cushion one side, sticking this skin flexible circuit board of being located at of opposite side.
3. double-deck flexible circuit board as claimed in claim 2 is characterized in that: form a containing cavity between described projection and this skin flexible circuit board, this rubber cushion is placed in this containing cavity.
4. double-deck flexible circuit board as claimed in claim 1, it is characterized in that: described internal layer flexible circuit board and outer flexible circuit board two ends all have a fit area, and this internal layer flexible circuit board and this skin flexible circuit board are fitted respectively by the fit area at these two ends and interfixed.
5. double-deck flexible circuit board as claimed in claim 4, it is characterized in that: described fixture is for being convexly set in the lug of this internal layer flexible circuit board and these skin flexible circuit board both sides respectively, these protruding both sides are respectively in abutting connection with this lug and this fit area, the lug of the lug of this internal layer flexible circuit board and this skin flexible circuit board is fitted mutually, so that this projection is fixed between this fit area and this lug.
6. double-deck flexible circuit board as claimed in claim 5 is characterized in that: described lug middle part connects and offers a location hole, and the location hole of this internal layer flexible circuit board and this skin flexible circuit board aligns applying.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910310307 CN102076168B (en) | 2009-11-24 | 2009-11-24 | Double-layer flexible printed circuit board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910310307 CN102076168B (en) | 2009-11-24 | 2009-11-24 | Double-layer flexible printed circuit board |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102076168A CN102076168A (en) | 2011-05-25 |
| CN102076168B true CN102076168B (en) | 2013-10-09 |
Family
ID=44034455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910310307 Expired - Fee Related CN102076168B (en) | 2009-11-24 | 2009-11-24 | Double-layer flexible printed circuit board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102076168B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105050316A (en) * | 2015-06-17 | 2015-11-11 | 安徽达胜电子有限公司 | Double-layer circuit board |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1672294A (en) * | 2002-06-24 | 2005-09-21 | Fci公司 | Connection device for flexible circuit |
| CN101483974A (en) * | 2008-01-08 | 2009-07-15 | 富士通株式会社 | Printed board unit and fixing parts thereof |
| CN201286194Y (en) * | 2008-07-04 | 2009-08-05 | 淳华科技(昆山)有限公司 | Flexible multi-layer printed circuit board |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000149652A (en) * | 1998-11-13 | 2000-05-30 | Ichikoh Ind Ltd | Fixing structure of flexible wiring board |
| JP2003133676A (en) * | 2001-10-29 | 2003-05-09 | Casio Comput Co Ltd | Junction structure of flexible wiring board |
-
2009
- 2009-11-24 CN CN 200910310307 patent/CN102076168B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1672294A (en) * | 2002-06-24 | 2005-09-21 | Fci公司 | Connection device for flexible circuit |
| CN101483974A (en) * | 2008-01-08 | 2009-07-15 | 富士通株式会社 | Printed board unit and fixing parts thereof |
| CN201286194Y (en) * | 2008-07-04 | 2009-08-05 | 淳华科技(昆山)有限公司 | Flexible multi-layer printed circuit board |
Non-Patent Citations (2)
| Title |
|---|
| JP特开2000-149652A 2000.05.30 |
| JP特开2003-133676A 2003.05.09 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102076168A (en) | 2011-05-25 |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| 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: 20131009 Termination date: 20191124 |