CN207802509U - A kind of independent circuit shielded flexible wiring board of high frequency signal transmission - Google Patents
A kind of independent circuit shielded flexible wiring board of high frequency signal transmission Download PDFInfo
- Publication number
- CN207802509U CN207802509U CN201820133022.9U CN201820133022U CN207802509U CN 207802509 U CN207802509 U CN 207802509U CN 201820133022 U CN201820133022 U CN 201820133022U CN 207802509 U CN207802509 U CN 207802509U
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- copper foil
- signal transmission
- high frequency
- frequency signal
- foil layer
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Abstract
A kind of independent circuit shielded flexible wiring board of high frequency signal transmission, belongs to flexible circuit board technical field.Including dual platen, single sided board, PI layers of A and copper plate.The utility model can effectively prevent radio frequency interference；The individually shielded of every circuit of flexible circuitry panel products is realized, a plurality of high frequency signal transmission can be carried out at the same time；Electromagnetic interference between circuit is avoided, closed isolation is carried out by copper foil completely around circuit, it is seamless；Replace traditional electromagnetic protection film, reduces production cost.
Description
Technical field
It is soft with the shielding of independent circuit that the utility model is related to a kind of flexible circuit board more particularly to a kind of high frequency signal transmission
Property wiring board.
Background technology
In recent years, electronics auxiliary material generally appears in every field, and updated with the development speed in every year generation,
Printed circuit board as electronics auxiliary material important component also improves update continuous, and flexible circuit board it is convenient with its,
Small, high density, high performance feature become printed circuit board Main Trends of The Development, with industry continuous development and flexible circuitry
Plate application field is continuously increased, demand is on the increase, and the requirement to flexible circuit board is also more diversified, in order to better meet
The market demand and the diversified requirement of flexible circuit board, need to develop diversified flexible circuit board.
The transmission rate of high-speed flexible wiring board design wiring system also brings anti-tampering while steady accelerate
Fragility, this is because the frequency of transmission information is higher, the sensibility of signal increases, while their energy is more and more weaker, this
When wiring system it is easier be disturbed, such as cable and equipment can generate other elements interference or tight by other interference sources
It interferes again, in addition, potential listener-in, the network crime and hacker are continuously increased, because they block UTP cable information transmission
Huge damage and loss can be caused by cutting, and especially when using high speed data network, it is bright to intercept the bulk information required time
It is aobvious to be less than the interception slow data transmission required time；Although and the twisted wire pair in data twisted-pair feeder can lean at low frequency
Itself twisted to resist the cross-talk between external interference and line pair, but (be more than especially at high frequencies 250MHz in frequency
When above), it only is unable to reach jamproof purpose by line strand, only shielding can resist external interference.
Utility model content
To solve the problems, such as that existing flexible circuit board is being unable to reach anti-interference purpose, the utility model at high frequencies
Provide a kind of independent circuit shielded flexible wiring board of high frequency signal transmission that can effectively prevent radio frequency interference.
To achieve the above object, the technical solution adopted in the utility model is：A kind of independent circuit of high frequency signal transmission
Shielded flexible wiring board, including dual platen and single sided board, dual platen are arranged on single sided board；The dual platen includes from top to bottom
Shield copper foil layer A, PI layer B and copper foil layer；The single sided board includes PI layers of C and shielding copper foil layer B from top to bottom；PI layers of A will be double
Panel and single sided board press together；Copper plate is arranged between two adjacent copper foil layers.
Further, the copper foil layer etching is mutually independent wire line.
Further, the copper plate is arranged in slot, the slot be shielding copper foil layer A, shielding copper foil layer B,
The elongate holes opened up on PI layers of B and PI layers of C.
Further, the shielding copper foil layer A and shielding copper foil layer B is grounded.
The utility model has the beneficial effects that radio frequency interference can be prevented effectively；Realize flexible circuitry panel products every
Circuit it is individually shielded, a plurality of high frequency signal transmission can be carried out at the same time；Avoid electromagnetic interference between circuit, around circuit completely by
Copper foil carries out closed isolation, seamless；Replace traditional electromagnetic protection film, reduces production cost.
Description of the drawings
Fig. 1 is the schematic cross-section of the utility model.
1. copper foil layer in figure, 2. copper plates, 3.PI layers of A, 4. shielding copper foil layer A, 5.PI layer B, 6.PI layers of C, 7. shield copper
Layers of foil B.
Specific implementation mode
Embodiment 1
1 pair of the utility model the first embodiment is described further below in conjunction with the accompanying drawings：
A kind of high frequency signal transmission is set with independent circuit shielded flexible wiring board, including dual platen and single sided board, dual platen
It sets on single sided board；The dual platen includes shielding copper foil layer A4, PI layer B5 and copper foil layer 1 from top to bottom；The single sided board is certainly
Include PI layers of C6 and shielding copper foil layer B7 up to lower；PI layers of A3 press together dual platen and single sided board；The setting of copper plate 2 exists
Between two adjacent copper foil layers 1.
The etching of the copper foil layer 1 is mutually independent wire line.
The copper plate 2 is arranged in slot, and the slot is in B7, PI layers of shielding copper foil layer A4, shielding copper foil layer B5
With the elongate holes opened up on PI layers of C6.
The shielding copper foil layer A4 is grounded with shielding copper foil layer B7.
A kind of high frequency signal transmission of the present embodiment is connected with independent circuit shielded flexible wiring board one end by connector
Signal transmitter, the other end pass through connector connection signal receiver.
Embodiment 2
The present embodiment is the further explanation to the manufacture craft of embodiment 1：
The copper foil layer 1 of dual platen one side is etched into conducting wire, in addition one side shielding copper foil layer A4 reservations are not processed, then
It is fitted to when being etched into the copper foil layer 1 of conducting wire with dual platen with the PI of single sided board layer C6 and is pressed together, press it
The slot of strip is opened on shielding copper foil layer A4, shielding B7, PI layers of B5 and PI layers of C6 same positions of copper foil layer afterwards, slot is located at
It is etched between the copper foil layer 1 of conducting wire, full copper is plated in the slot of strip, keep shielding copper foil layer A4 and shielding copper foil layer B7 logical
It crosses 2 mutual conduction of copper plate, and form a protective cover by conducting wire is fully wrapped around, finally sticks PI layers in upper and lower surface
A3。
The preferable specific implementation mode of the above, only the utility model, but the scope of protection of the utility model is not
It is confined to this, any one skilled in the art is in the technical scope that the utility model discloses, according to this practicality
Novel technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model
Within enclosing.
Claims (4)
1. a kind of independent circuit shielded flexible wiring board of high frequency signal transmission, which is characterized in that including dual platen and single sided board,
The dual platen is arranged on single sided board；The dual platen includes shielding copper foil layer A (4), PI layers of B (5) and copper foil from top to bottom
Layer (1)；The single sided board includes PI layers of C (6) and shielding copper foil layer B (7) from top to bottom；PI layers of A (3) are by dual platen and single sided board
It presses together；Copper plate (2) is arranged between two adjacent copper foil layers (1).
2. a kind of independent circuit shielded flexible wiring board of high frequency signal transmission according to claim 1, which is characterized in that
Copper foil layer (1) etching is mutually independent wire line.
3. a kind of independent circuit shielded flexible wiring board of high frequency signal transmission according to claim 1, which is characterized in that
The copper plate (2) is arranged in slot, and the slot is in shielding copper foil layer A (4), shielding copper foil layer B (7), PI layers of B (5)
With the elongate holes opened up on PI layers of C (6).
4. a kind of independent circuit shielded flexible wiring board of high frequency signal transmission according to claim 1, which is characterized in that
The shielding copper foil layer A (4) is grounded with shielding copper foil layer B (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820133022.9U CN207802509U (en) | 2018-01-26 | 2018-01-26 | A kind of independent circuit shielded flexible wiring board of high frequency signal transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820133022.9U CN207802509U (en) | 2018-01-26 | 2018-01-26 | A kind of independent circuit shielded flexible wiring board of high frequency signal transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207802509U true CN207802509U (en) | 2018-08-31 |
Family
ID=63270479
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820133022.9U Active CN207802509U (en) | 2018-01-26 | 2018-01-26 | A kind of independent circuit shielded flexible wiring board of high frequency signal transmission |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207802509U (en) |
-
2018
- 2018-01-26 CN CN201820133022.9U patent/CN207802509U/en active Active
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| GR01 | Patent grant |