CN216721649U - Electromagnetic interference resistance's flexible circuit board - Google Patents
Electromagnetic interference resistance's flexible circuit board Download PDFInfo
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- CN216721649U CN216721649U CN202122514944.9U CN202122514944U CN216721649U CN 216721649 U CN216721649 U CN 216721649U CN 202122514944 U CN202122514944 U CN 202122514944U CN 216721649 U CN216721649 U CN 216721649U
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- circuit board
- shielding plate
- flexible substrate
- flexible
- electromagnetic
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Abstract
The utility model discloses an electromagnetic interference preventing flexible circuit board, which comprises a flexible substrate, wherein a circuit graphical conducting layer is arranged on the flexible substrate, buffer layers are arranged on two sides of the flexible substrate, the flexible substrate and the buffer layers are both positioned in an electromagnetic shielding plate, a connecting port is arranged on the electromagnetic shielding plate, a connecting wire extends out of the connecting port, and a grounding wire connected with the electromagnetic shielding plate extends outwards along the connecting wire.
Description
Technical Field
The utility model relates to the technical field of flexible circuit boards, in particular to an electromagnetic interference prevention flexible circuit board.
Background
A flexible circuit board (i.e., FPC) is a printed circuit board made of a flexible insulating base material. The electronic component connecting device can be bent, wound and the like, can be flexibly arranged along with the installation space, does not belong to the limitation of the installation space, thereby realizing the integration of the assembly of the electronic component and the connection of the lead and breaking through the limitation of the traditional interconnection technology. The flexible printed circuit board also has the characteristics of light weight, small volume and good heat dissipation, for example, the thickness of the insulating substrate of the flexible printed circuit board is usually less than 0.1 mm.
In the fields of electronics, communications, computers and the like with strict requirements on electromagnetic interference resistance, printed circuits on circuit boards can generate electromagnetic interference, the performance of products can be seriously affected, equipment can be caused to generate faults, and particularly, flexible circuit boards used on precise electronic equipment can generate electromagnetic interference on adjacent printed circuits. Therefore, the present invention provides an electromagnetic interference (emi) resistant flexible circuit board to solve the above problems in the background art.
SUMMERY OF THE UTILITY MODEL
The present invention is directed to a flexible printed circuit board for preventing electromagnetic interference, so as to solve the problems mentioned in the background art.
In order to achieve the purpose, the utility model provides the following technical scheme:
the utility model provides an electromagnetic interference resistance's flexible circuit board, includes the flexible substrate, be equipped with the graphical conducting layer of circuit on the flexible substrate, the both sides of flexible substrate are equipped with the buffer layer, and flexible substrate and buffer layer all are located the inside of electromagnetic shield board, and the outside of electromagnetic shield board is passed through the double faced adhesive tape layer and is connected the cover rete.
As a further scheme of the utility model, a connecting port is arranged on the electromagnetic shielding plate, a connecting wire extends out of the connecting port, and a grounding wire connected with the electromagnetic shielding plate extends outwards along the connecting wire.
As a further scheme of the present invention, the electromagnetic shielding plate is composed of two identical cover plates, the top and one side of the cover plate are opened, and the cover plates are staggered to cover the inside to electromagnetically shield the inside.
As a still further aspect of the present invention, the buffer layer is foam or sponge.
As a further scheme of the present invention, a frame-shaped glue column is disposed on the outer side of the electromagnetic shielding plate, and the glue column is formed by stacking double-sided glue layers and is used for filling a gap between the covering film layer and the electromagnetic shielding plate.
Compared with the prior art, the utility model has the beneficial effects that:
according to the utility model, the flexible substrate is wrapped in the electromagnetic shielding plate, so that external electromagnetic interference is prevented, meanwhile, the buffer layer is utilized to improve the buffer and toughness of the flexible substrate during bending and impacting, the rubber column on the outer side is used for filling a gap between the covering film layer and the electromagnetic shielding plate, and the covered electromagnetic shielding plate is convenient to separate and mount.
Drawings
Fig. 1 is a schematic structural diagram of an electromagnetic interference (emi) preventing flexible printed circuit board.
Fig. 2 is a schematic structural diagram of an electromagnetic shielding plate in an electromagnetic interference shielding flexible circuit board.
In the figure: 1. a flexible substrate; 2. a buffer layer; 3. an electromagnetic shield plate; 4. a double-sided adhesive layer; 5. covering the film layer; 6. a connecting port; 7. glue columns; 8. and connecting the wires.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, in an embodiment of the present invention, an electromagnetic interference (emi) preventing flexible circuit board includes a flexible substrate 1, a circuit patterned conductive layer is disposed on the flexible substrate 1, buffer layers 2 are disposed on both sides of the flexible substrate 1, the flexible substrate 1 and the buffer layers 2 are both disposed inside an electromagnetic shielding plate 3, a connector 6 is disposed on the electromagnetic shielding plate 3, a connection line 8 extends from the connector 6, a ground line connected to the electromagnetic shielding plate 3 extends along the connection line 8, the outer side of the electromagnetic shielding plate 3 is connected to a covering film layer 5 through a double-sided adhesive layer 4, the electromagnetic shielding plate 3 is composed of two identical cover plates, the top and one side of the cover plates are open, the cover plates are staggered to cover the inside to shield electromagnetic interference, the buffer layer 2 is made of foam or sponge, frame-shaped adhesive pillars 7 are disposed on the outer side of the electromagnetic shielding plate 3, the adhesive pillars 7 are formed by stacking the double-sided adhesive layers 4, for filling the gap between the cover film layer 5 and the electromagnetic shielding plate 3.
The working principle of the utility model is as follows: according to the utility model, the flexible substrate 1 is wrapped inside the electromagnetic shielding plate 3, so that external electromagnetic interference is prevented, meanwhile, the buffer layer 2 is utilized to improve the buffer and toughness of the flexible substrate 1 during bending and impact, the glue column 7 on the outer side is used for filling the gap between the covering film layer 5 and the electromagnetic shielding plate 3, and the covered electromagnetic shielding plate 3 is convenient to separate and mount.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (5)
1. The utility model provides an electromagnetic interference resistance's flexible circuit board, includes flexible substrate (1), its characterized in that, be equipped with the patterned conducting layer of circuit on flexible substrate (1), the both sides of flexible substrate (1) are equipped with buffer layer (2), and flexible substrate (1) and buffer layer (2) all are located the inside of electromagnetic shield board (3), and cover rete (5) are connected through two-sided adhesive layer (4) in the outside of electromagnetic shield board (3).
2. The flexible circuit board of claim 1, wherein the electromagnetic shielding plate (3) is provided with a connection port (6), a connection wire (8) extends from the connection port (6), and a ground wire connected to the electromagnetic shielding plate (3) extends outwards along the connection wire (8).
3. An emi shielding flexible circuit board according to claim 1, wherein the emi shielding plate (3) is composed of two identical cover plates, the top and one side of the cover plates are open.
4. The flexible circuit board of claim 1, wherein the buffer layer (2) is made of foam or sponge.
5. The flexible printed circuit board of claim 1, wherein the electromagnetic shielding plate (3) is provided with a frame-shaped glue pillar (7) on the outer side, and the glue pillar (7) is formed by stacking two-sided glue layers (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122514944.9U CN216721649U (en) | 2021-10-19 | 2021-10-19 | Electromagnetic interference resistance's flexible circuit board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122514944.9U CN216721649U (en) | 2021-10-19 | 2021-10-19 | Electromagnetic interference resistance's flexible circuit board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216721649U true CN216721649U (en) | 2022-06-10 |
Family
ID=81876787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122514944.9U Active CN216721649U (en) | 2021-10-19 | 2021-10-19 | Electromagnetic interference resistance's flexible circuit board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216721649U (en) |
-
2021
- 2021-10-19 CN CN202122514944.9U patent/CN216721649U/en active Active
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