CN2831690Y - Flexible printed circuit boards and folding cell phone thereof - Google Patents
Flexible printed circuit boards and folding cell phone thereof Download PDFInfo
- Publication number
- CN2831690Y CN2831690Y CN 200520056010 CN200520056010U CN2831690Y CN 2831690 Y CN2831690 Y CN 2831690Y CN 200520056010 CN200520056010 CN 200520056010 CN 200520056010 U CN200520056010 U CN 200520056010U CN 2831690 Y CN2831690 Y CN 2831690Y
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Abstract
The utility model discloses a flexible printed circuit board and a folding mobile phone thereof. The flexible printed circuit comprises data lines, earth linea and a flexible plate body, wherein the earth lines are independently printed on one layer or two layers, and the optimized flexible plate body is a four-layer compound structure; an earth line 10 is independently printed on a first layer and a fourth layer, and a data line 11 is independently printed on a second layer and a third layer. Compared with the original design, the total width of an FPC is reduced by a width occupied by the earth lines of both sides, so the stress of twisting deformation of the FPC is reduced, and the possibility of friction and interference with the inner wall of a housing is decreased; an earth line layer which is externally distributed firstly bears the impact of the stress of the twisting deformation of the entire FPC so as to perform the function of mechanical protection and extend the service life of the data lines. Besides, the data lines are encircled by the earth line layer, and in point of electrical performance, the earth line layer performs the functions of shielding of electronic interference and enhancement of conversation quality.
Description
Technical field
The utility model relates to a kind of structure of flexible printed circuit board and uses the folding cell phone of this structure.
Background technology
The flexible printed circuit board (FPC) that the existing LCDs that is used for folding cell phone, laptop computer etc. is connected with mainboard is a double-layer structure.Be illustrated in figure 1 as the flexible printed circuit board structural representation that connects liquid crystal PCB and mainboard PCB on the folding cell phone, ground wire is printed on outer, every layer of wiring board two limit, its data wire is printed on the centre of two ground wires 10, as shown in Figure 2.Because data wire adds the ground wire on two limits, need certain width, if therefore the FPC of this design only depends on the width of constriction data wire and ground wire, can't recompress the integral width of FPC, and the stress during big more its torsional deformation of the width of FPC is big more, cause FPC to break easily, and break easily with the generation of casing inner wall frictional interference.This in addition design is not played protection and shielding action to the data wire of centre, can not play screening electron and disturb on electric property, improves the effect of mobile phone communication quality.
Summary of the invention
The purpose of this utility model is exactly in order to overcome above deficiency of the prior art, provide a kind of at first be reliability higher, secondly be the better flexible printed circuit board of communication quality.
For achieving the above object, the utility model proposes a kind of flexible printed circuit board, comprise at least one group of data wire, one group of ground wire and flexible board main body, described data wire, ground wire are printed on the described flexible board main body; Described flexible board main body is the plate of the double-layer flexible at least composite construction that comprises first ground plane, first data line layer, and described ground wire independently is printed on described first ground plane, and described data wire independently is printed on described first data line layer.
Above-mentioned flexible printed circuit board, described flexible printed circuit board also comprise second group of data wire, and described flexible board main body also comprises second data line layer, and described second group of data wire independently is printed on described second data line layer.Described flexible printed circuit board also comprises second group of ground wire, and described flexible board main body also comprises second ground plane, and described second group of ground wire independently is printed on described second ground plane.
Preferably, described first ground plane and second ground plane are set to the ground floor of flexible board main body and the 4th layer respectively, and described first data line layer and second data line layer are set to the second layer of flexible board main body and the 3rd layer.The printing width W 1 of described ground wire is wide with described data wire printing span W2, and described ground wire outer rim is alignd with described data wire outer rim and is covered on the described data wire.
The utility model discloses a kind of folding cell phone, comprise main case, mainboard PCB, renovate casing, display screen PCB, flexible printed circuit board, described mainboard PCB is arranged in the described main case, described display screen PCB is arranged at described renovating in the casing, and described flexible printed circuit board connects described mainboard PCB and display screen PCB; Described flexible printed circuit board comprises at least one group of data wire, one group of ground wire and flexible board main body, and described data wire, ground wire are printed on the described flexible board main body; Described flexible board main body is the plate of the double-layer flexible at least composite construction that comprises first ground plane, first data line layer, and described ground wire independently is printed on described first ground plane, and described data wire independently is printed on described first data line layer.
Above-mentioned folding cell phone, described flexible printed circuit board also comprise second group of data wire, and described flexible board main body also comprises second data line layer, and described second group of data wire independently is printed on described second data line layer.Described flexible printed circuit board also comprises second group of ground wire, and described flexible board main body also comprises second ground plane, and described second group of ground wire independently is printed on described second ground plane.
Above-mentioned folding cell phone, preferably: described first ground plane and second ground plane are set to the ground floor of flexible board main body and the 4th layer respectively, and described first data line layer and second data line layer are set to the second layer of flexible board main body and the 3rd layer.The printing width W 1 of described ground wire is wide with described data wire printing span W2, and described ground wire outer rim is alignd with described data wire outer rim and is covered on the described data wire.
Owing to adopted above scheme, brought following beneficial effect:
1, because ground wire is transferred to independently on one deck or the double-layer flexible plate fully prints, data wire and ground wire layering are provided with, the FPC beam overall can dwindle the width that two ground wires take than former design, can reduce the stress of FPC torsional deformation largely and reduce with the casing inner wall frictional interference may.2, be distributed in the stress impact that outer ground plane at first bears whole FPC torsional deformation; reduced the stress that the data line layer in being distributed in is born; it is played the effect of mechanical protection, prolong the useful life of data wire, improved the complete machine quality of using this structure FPC.3, ground plane is enclosed in inside with data wire, plays the effect that screening electron disturbs, improves speech quality on electric property.4, because ground wire independently is printed on one deck or the double-layer flexible plate main body, enough cover widths are arranged, can improve the ground connection performance of complete machine.
Description of drawings
Fig. 1 is a prior art FPC double-decker schematic diagram; Fig. 2 is every layer of structural representation of prior art FPC;
Fig. 3 is the FPC four-layer structure schematic diagram of the utility model embodiment one;
Fig. 4 is the FPC data line layer structural representation of the utility model embodiment one;
Fig. 5 is the FPC ground plane structural representation of the utility model embodiment one.
Embodiment
Also in conjunction with the accompanying drawings the utility model is described in further detail below by specific embodiment.
Embodiment one: this example is a preferred implementation of the present utility model, on the folding cell phone of the present utility model, comprise main case, mainboard PCB, renovate casing, display screen PCB, flexible printed circuit board, described mainboard PCB is arranged in the described main case, described display screen PCB is arranged at described renovating in the casing, and described flexible printed circuit board connects described mainboard PCB and display screen PCB.As shown in Figure 3, be used to connect the flexible printed circuit board FPC of liquid crystal PCB and mainboard PCB, its flexible board main body adopts four layers of flexible board composite construction, and its ground wire 10 is printed on first, fourth layer, as shown in Figure 5; And middle two layers as data line layer, in the middle of data wire 11 is printed on two layers, as shown in Figure 4.The printing width W 1 of ground wire is just wide with data wire printing span W2, and ground wire aligns with the outer rim of data wire in composite construction, like this with respect to the FPC structure of prior art, because ground wire is provided with in addition, the overall width of FPC can constriction 1MM, can reduce the stress of FPC torsional deformation largely and reduce with the casing inner wall frictional interference may.Be distributed in the stress impact of the outer at first whole FPC of the bearing torsional deformation of ground plane; reduced the stress that the data line layer in being distributed in is born; it is played the effect of mechanical protection, prolong the useful life of data wire, improved the complete machine quality of using this structure FPC.Ground plane is enclosed in inside with data wire simultaneously, plays the effect that screening electron disturbs, improves speech quality on electric property.
Embodiment two: the flexible printed circuit board that this is routine, the flexible board main body adopts three-layer composite structure, ground wire independently is printed on wherein one deck, data wire independently is printed on other two layers, like this with respect to two layers of original design, the width of wiring board can reduce the about 1MM of live width that former two border district lines occupy at least, can reduce the stress of FPC torsional deformation largely and reduce with the casing inner wall frictional interference may.
Claims (10)
1, a kind of flexible printed circuit board comprises at least one group of data wire, one group of ground wire and flexible board main body, and described data wire, ground wire are printed on the described flexible board main body; It is characterized in that: described flexible board main body is the plate of the double-layer flexible at least composite construction that comprises first ground plane, first data line layer, and described ground wire independently is printed on described first ground plane, and described data wire independently is printed on described first data line layer.
2, flexible printed circuit board as claimed in claim 1 is characterized in that: described flexible printed circuit board also comprises second group of data wire, and described flexible board main body also comprises second data line layer, and described second group of data wire independently is printed on described second data line layer.
3, flexible printed circuit board as claimed in claim 1 or 2 is characterized in that: described flexible printed circuit board also comprises second group of ground wire, and described flexible board main body also comprises second ground plane, and described second group of ground wire independently is printed on described second ground plane.
4, flexible printed circuit board as claimed in claim 3, it is characterized in that: described first ground plane and second ground plane are set to the ground floor of flexible board main body and the 4th layer respectively, and described first data line layer and second data line layer are set to the second layer of flexible board main body and the 3rd layer.
5, flexible printed circuit board as claimed in claim 4 is characterized in that: the printing width (W1) of described ground wire is wide with described data wire printing span (W2), and described ground wire outer rim is alignd with described data wire outer rim and is covered on the described data wire.
6, a kind of folding cell phone, comprise main case, mainboard PCB, renovate casing, display screen PCB, flexible printed circuit board, described mainboard PCB is arranged in the described main case, described display screen PCB is arranged at described renovating in the casing, and described flexible printed circuit board connects described mainboard PCB and display screen PCB; Described flexible printed circuit board comprises at least one group of data wire, one group of ground wire and flexible board main body, and described data wire, ground wire are printed on the described flexible board main body; It is characterized in that: described flexible board main body is the plate of the double-layer flexible at least composite construction that comprises first ground plane, first data line layer, and described ground wire independently is printed on described first ground plane, and described data wire independently is printed on described first data line layer.
7, folding cell phone as claimed in claim 6 is characterized in that: described flexible printed circuit board also comprises second group of data wire, and described flexible board main body also comprises second data line layer, and described second group of data wire independently is printed on described second data line layer.
8, as claim 6 or 7 described folding cell phones, it is characterized in that: described flexible printed circuit board also comprises second group of ground wire, and described flexible board main body also comprises second ground plane, and described second group of ground wire independently is printed on described second ground plane.
9, folding cell phone as claimed in claim 8, it is characterized in that: described first ground plane and second ground plane are set to the ground floor of flexible board main body and the 4th layer respectively, and described first data line layer and second data line layer are set to the second layer of flexible board main body and the 3rd layer.
10, folding cell phone as claimed in claim 9 is characterized in that: the printing width (W1) of described ground wire is wide with described data wire printing span (W2), and described ground wire outer rim is alignd with described data wire outer rim and is covered on the described data wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520056010 CN2831690Y (en) | 2005-03-15 | 2005-03-15 | Flexible printed circuit boards and folding cell phone thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520056010 CN2831690Y (en) | 2005-03-15 | 2005-03-15 | Flexible printed circuit boards and folding cell phone thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2831690Y true CN2831690Y (en) | 2006-10-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520056010 Expired - Fee Related CN2831690Y (en) | 2005-03-15 | 2005-03-15 | Flexible printed circuit boards and folding cell phone thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2831690Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012122685A1 (en) * | 2011-03-15 | 2012-09-20 | 珠海元盛电子科技股份有限公司 | Layered fpc for folding/sliding cover cell phone and manufacturing method as the same |
| WO2018082333A1 (en) * | 2016-11-07 | 2018-05-11 | 徐海波 | Novel electric cable |
| CN108141960A (en) * | 2015-10-16 | 2018-06-08 | 国立研究开发法人科学技术振兴机构 | Stress mitigates substrate and Weave type device |
-
2005
- 2005-03-15 CN CN 200520056010 patent/CN2831690Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012122685A1 (en) * | 2011-03-15 | 2012-09-20 | 珠海元盛电子科技股份有限公司 | Layered fpc for folding/sliding cover cell phone and manufacturing method as the same |
| CN108141960A (en) * | 2015-10-16 | 2018-06-08 | 国立研究开发法人科学技术振兴机构 | Stress mitigates substrate and Weave type device |
| US10548219B2 (en) | 2015-10-16 | 2020-01-28 | Japan Science And Technology Agency | Stress relaxation substrate and textile type device |
| CN108141960B (en) * | 2015-10-16 | 2021-05-14 | 国立研究开发法人科学技术振兴机构 | Stress relaxation substrate and textile-type device |
| WO2018082333A1 (en) * | 2016-11-07 | 2018-05-11 | 徐海波 | Novel electric cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20061025 Termination date: 20130315 |