CN212544169U - Super long size multilayer flexible printed board subassembly - Google Patents
Super long size multilayer flexible printed board subassembly Download PDFInfo
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- CN212544169U CN212544169U CN201921929767.7U CN201921929767U CN212544169U CN 212544169 U CN212544169 U CN 212544169U CN 201921929767 U CN201921929767 U CN 201921929767U CN 212544169 U CN212544169 U CN 212544169U
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Abstract
The utility model relates to an overlength size multilayer flexible printed board subassembly, including flexible region, weld respectively in the rigidity region at flexible region both ends. Because the two ends of the flexible area are respectively provided with a reinforcing structure at the intersection of the rigid area, the reinforcing structure comprises a flexible accommodating groove, a beam rod, a screw column and a coating adhesive layer. When the flexible printed circuit board is used, one end of the flexible area penetrates through the flexible accommodating groove to the other side of the rigid area, then the middle end of the beam rod is precisely attached to the upper surface of the flexible area, the two ends of the beam rod fix the beam rod to the upper surface of the rigid area through screw columns, and an adhesive layer is coated between the inner side surface of the beam rod and the upper surface of the flexible area, so that the flexible area can be precisely attached and fixed to a specified position on the rigid area, the service life of the flexible printed circuit board with a long-sized circuit is prolonged, and meanwhile, the purpose of improving the electric connection performance of the flexible printed circuit board is facilitated.
Description
[ technical field ] A method for producing a semiconductor device
The utility model relates to a flexible printed board subassembly of overlength size multilayer for in the aspect of the interconnection technique between printing board and the printing board.
[ background of the invention ]
With the trend of miniaturization and miniaturization of electronic equipment, printed boards and printed board assembly modules also tend to have high density and light weight, and the trend is rapidly developing. The flexible and rigid-flexible printed board is used as a special interconnection technology, can reduce the assembly size and weight of electronic products, avoids assembly wiring errors, and realizes three-dimensional assembly under different assembly conditions. The three-dimensional assembly mode has the characteristics of small volume, light weight, flexibility, reliable assembly and the like, and is widely applied to computers, aerospace, military and civil electronic equipment. The rigid-flexible printed board is a combination of a rigid board and a flexible board, and belongs to one of flexible printed boards. The flexible printed board assembly is an assembly product which is composed of a flexible printed board and electronic components and has certain electrical transmission or electrical combination functions. The flexible printed board assembly comprises flexible printed boards and rigid connecting seats which are respectively welded and fixed at two ends of the flexible printed boards. Due to the fact that the line size of the flexible printed board area is long, when the flexible printed board is subjected to external vibration force or impact force, the flexible printed board located in the middle is prone to deformation or bending, after the flexible printed board is used for a period of time, the flexible printed board in the middle is prone to being broken, and the service life of the flexible printed board is shortened.
[ Utility model ] content
In view of this, the technical problem to be solved by the present invention is to provide an ultra-long multi-layer flexible printed board assembly capable of prolonging the service life of a longer flexible printed board and improving the connection performance of flexible printed board points.
Therefore, the technical solution of the present invention is to provide an ultra-long multi-layer flexible printed board assembly, which includes a flexible region welded to rigid regions at two ends of the flexible region respectively; the flexible area comprises a flexible substrate plate, copper-clad layers, covering films and a first adhesive layer, wherein the flexible substrate plate penetrates through the rigid areas at two ends respectively, the copper-clad layers are coated on the upper surface and the lower surface of the flexible substrate plate, the covering films are coated on the upper surface and the lower surface of the copper-clad layers, and the first adhesive layer is arranged between the copper-clad layers and the copper-clad films; the rigid area comprises PP layers respectively welded on the upper surface and the lower surface of two ends of the flexible substrate plate, an FR4 layer arranged on the PP layer, a solder mask layer arranged on the FR4 layer, and rigid copper-clad layers respectively arranged between the PP layer and the FR4 layer and between the FR4 layer and the solder mask layer; the reinforced structure comprises a flexible accommodating groove, a beam rod, screw columns and a second adhesive layer, wherein the flexible accommodating groove is arranged on the rigid area and used for accommodating one end of the flexible area, the beam rod is directly fixed on the rigid area, the screw columns are arranged at two ends of the beam rod, and the second adhesive layer is coated between the flexible area and the beam rod.
Further defined, the reinforcing structure includes a flexible receiving recess disposed above the rigid region for receiving an end of the flexible region, and a solder joint between the flexible region and the rigid region.
Further defined, the reinforcing structure comprises a flexible accommodating groove arranged on the rigid area and used for accommodating one end of the flexible area, a beam rod directly fixed on the flexible area, screw columns arranged at two ends of the beam rod, and soldering tin points welded between the flexible area and the rigid area.
Further limiting, the adhesive layer is made of silicon rubber material; the silicon rubber is GD414 and GD 34.
Further defined, the flexible substrate sheet is constructed of a polyimide material or a polyester material or a polytetrafluoroethylene material.
The utility model has the advantages of: the reinforced structure comprises a flexible accommodating groove arranged on the rigid area and used for accommodating one end of the flexible area, a beam rod directly fixed on the rigid area, screw columns arranged at two ends of the beam rod, and an adhesive layer coated between the flexible area and the beam rod. When the flexible printed board is used, one end of the flexible area penetrates through the flexible accommodating groove to the other side of the rigid area, then the middle end of the beam rod is precisely attached to the upper surface of the flexible area, the two ends of the beam rod fix the beam rod to the upper surface of the rigid area through screw columns, and the adhesive layer is coated between the inner side surface of the beam rod and the upper surface of the flexible area, so that the flexible area can be precisely attached and fixed to a specified position on the rigid area, the phenomenon that the flexible printed board is broken due to bending deformation caused by external vibration or impact force in the prior art is avoided, the service life of the flexible printed board with a long-sized circuit is prolonged, and meanwhile, the purpose of improving the electric connection performance of the flexible printed board is facilitated.
The technical solution of the present invention will be described in further detail with reference to the accompanying drawings and embodiments.
[ description of the drawings ]
Fig. 1 is a schematic view of an ultra-long multilayer flexible printed board assembly according to embodiment 1 of the present invention;
fig. 2 is a schematic view of a reinforcing structure in embodiment 1 of the present invention;
fig. 3 is a schematic view of a reinforcing structure in embodiment 2 of the present invention;
fig. 4 is a schematic view of a reinforcing structure in embodiment 3 of the present invention.
[ detailed description ] embodiments
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention clearer and more obvious, the following description of the present invention with reference to the accompanying drawings and embodiments is provided for further details. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
Referring to fig. 1 to 4, an ultra-long multi-layer flexible printed board assembly including a flexible region and a rigid region welded to both ends of the flexible region is described in connection with a first embodiment.
The flexible area comprises a flexible substrate board 1 respectively penetrating through the rigid areas at two ends, copper-clad layers 2 coated on the upper surface and the lower surface of the flexible substrate board 1, cover films 3 coated on the upper surface and the lower surface of the copper-clad layers 2, and a first adhesive layer 4 arranged between the copper-clad layers 2 and the copper-clad films 3.
The rigid area comprises PP layers 5 welded on the upper surface and the lower surface of the two ends of the flexible substrate board 1 respectively, FR4 layers 6 arranged on the PP layers 5, solder mask layers 7 arranged on the FR4 layers 6, and rigid copper-clad layers 8 arranged between the PP layers 5 and the FR4 layers 6 and between the FR4 layers 6 and the solder mask layers 7 respectively. The first and second adhesive layers 4 and 9 are made of silicon rubber materials; the silicon rubber is GD414 and GD 34. The flexible substrate plate is made of polyimide material, polyester material or polytetrafluoroethylene material.
The reinforced structure comprises a flexible accommodating groove 10 arranged on the rigid area and used for accommodating one end of the flexible area, a beam rod 11 directly fixed on the rigid area, screw columns 12 arranged at two ends of the beam rod 11, and a second adhesive layer 9 coated between the flexible area and the beam rod 11.
When the flexible substrate board is installed, two ends of the flexible substrate board 1 are respectively connected with the rigid regions. When the flexible printed circuit board is used, one end of the flexible area penetrates through the flexible accommodating groove 10 to the other side of the rigid area, then the middle end of the beam rod 11 is precisely attached to the upper surface of the flexible area, the two ends of the beam rod 11 fix the beam rod 11 to the upper surface of the rigid area through the screw columns 12, and the adhesive layer is coated between the inner side surface of the beam rod 11 and the upper surface of the flexible area, so that the flexible area can be precisely attached and fixed to a specified position on the rigid area, the phenomenon that the flexible printed circuit board is broken due to bending deformation caused by external vibration or impact force of the flexible printed circuit board in the prior art is avoided, the service life of the flexible printed circuit board with a long size is prolonged, and meanwhile, the purpose of improving the electrical connection performance of the flexible printed circuit board is facilitated.
In summary, since the two ends of the flexible region are respectively provided with the reinforcing structure at the intersection with the rigid region for improving the reinforcing performance, the reinforcing structure includes the flexible accommodating groove 10 arranged on the rigid region for accommodating one end of the flexible region, the beam rod 11 directly fixed on the rigid region, the screw columns 12 arranged at the two ends of the beam rod 11, and the second adhesive layer coated between the flexible region and the beam rod 11
9. When the flexible printed circuit board is used, one end of the flexible area penetrates through the flexible accommodating groove 10 to the other side of the rigid area, then the middle end of the beam rod 11 is precisely attached to the upper surface of the flexible area, the two ends of the beam rod 11 fix the beam rod 11 to the upper surface of the rigid area through the screw columns 12, and the adhesive layer is coated between the inner side surface of the beam rod 11 and the upper surface of the flexible area, so that the flexible area can be precisely attached and fixed to a specified position on the rigid area, the phenomenon that the flexible printed circuit board is broken due to bending deformation caused by external vibration or impact force in the prior art is avoided, the service life of the flexible printed circuit board with a long size is prolonged, and meanwhile, the purpose of improving the electrical connection performance of the flexible printed circuit board is facilitated.
Referring to fig. 3, the second embodiment is different from the first embodiment in that the reinforcing structure includes a flexible receiving groove 13 disposed above the rigid region for receiving one end of the flexible region, and solder points 14 soldered between the flexible region and the rigid region. The effects described in the first embodiment can be achieved as well.
Referring to fig. 4, the third embodiment is different from the first embodiment in that the reinforcing structure includes a flexible receiving groove 15 disposed above the rigid region for receiving one end of the flexible region, a beam rod 16 directly fixed above the flexible region, screw posts 17 mounted at both ends of the beam rod 16, and solder points 18 welded between the flexible region and the rigid region. The effects described in the first embodiment can be achieved as well.
The preferred embodiments of the present invention have been described above with reference to the accompanying drawings, without thereby limiting the scope of the invention. Any modification, equivalent replacement and improvement made by those skilled in the art without departing from the scope and spirit of the present invention should be within the scope of the claims of the present invention.
Claims (4)
1. An overlength multi-layer flexible printed board assembly comprises a flexible area and rigid areas welded on two ends of the flexible area respectively; the flexible area comprises a flexible substrate plate, copper-clad layers, covering films and a first adhesive layer, wherein the flexible substrate plate penetrates through the rigid areas at two ends respectively, the copper-clad layers are coated on the upper surface and the lower surface of the flexible substrate plate, the covering films are coated on the upper surface and the lower surface of the copper-clad layers, and the first adhesive layer is arranged between the copper-clad layers and the copper-clad films; the rigid area comprises PP layers respectively welded on the upper surface and the lower surface of two ends of the flexible substrate plate, an FR4 layer arranged on the PP layer, a solder mask layer arranged on the FR4 layer, and rigid copper-clad layers respectively arranged between the PP layer and the FR4 layer and between the FR4 layer and the solder mask layer; the method is characterized in that: the reinforced structure comprises a flexible accommodating groove, a beam rod, screw columns and a second adhesive layer, wherein the flexible accommodating groove is arranged on the rigid area and used for accommodating one end of the flexible area, the beam rod is directly fixed on the rigid area, the screw columns are arranged at two ends of the beam rod, and the second adhesive layer is coated between the flexible area and the beam rod.
2. An oversized multi-layer flexible printed board assembly according to claim 1, wherein: the reinforcing structure further includes a solder point soldered between the flexible region and the rigid region.
3. An oversized multi-layer flexible printed board assembly according to claim 1, wherein: the adhesive layer is made of silicon rubber material; the silicon rubber is GD414 and GD 34.
4. An oversized multi-layer flexible printed board assembly according to claim 1, wherein: the flexible substrate plate is made of polyimide material, polyester material or polytetrafluoroethylene material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921929767.7U CN212544169U (en) | 2019-11-08 | 2019-11-08 | Super long size multilayer flexible printed board subassembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921929767.7U CN212544169U (en) | 2019-11-08 | 2019-11-08 | Super long size multilayer flexible printed board subassembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212544169U true CN212544169U (en) | 2021-02-12 |
Family
ID=74525014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921929767.7U Active CN212544169U (en) | 2019-11-08 | 2019-11-08 | Super long size multilayer flexible printed board subassembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212544169U (en) |
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2019
- 2019-11-08 CN CN201921929767.7U patent/CN212544169U/en active Active
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Address after: 510000 27th floor, Olympic building, No.2 Shangbao Road, Futian District, Shenzhen City, Guangdong Province Patentee after: Shenzhen Jialichuang Technology Group Co.,Ltd. Address before: 510000 27th floor, Olympic building, No.2 Shangbao Road, Futian District, Shenzhen City, Guangdong Province Patentee before: SHENZHEN JIALICHUANG TECHNOLOGY DEVELOPMENT CO.,LTD. |
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