CN210378544U - Double-conductor grounded anti-interference FFC (flexible flat cable) - Google Patents
Double-conductor grounded anti-interference FFC (flexible flat cable) Download PDFInfo
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- CN210378544U CN210378544U CN201921449462.6U CN201921449462U CN210378544U CN 210378544 U CN210378544 U CN 210378544U CN 201921449462 U CN201921449462 U CN 201921449462U CN 210378544 U CN210378544 U CN 210378544U
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Abstract
The utility model discloses a double-conductor grounding anti-interference FFC (flexible flat cable), which relates to the FFC flat cable field and comprises a metal shielding layer, a first polyester insulating film is arranged below the metal shielding layer, a grounding wire is arranged below the first polyester insulating film, a signal wire is arranged below the grounding wire, a second polyester insulating film is arranged below the signal wire, the metal shielding layer in the utility model is used for shielding electromagnetism, so that the inside electromagnetism is not interfered by the outside electromagnetism, and inside electromagnetic energy does not run to the outside easily and goes, the utility model provides a ground lead shields the ground with the metal and is used for forming signal high frequency transmission's return circuit, solves data high frequency transmission return circuit problem, the utility model provides a first polyester insulating involucra and second polyester insulating involucra are used for insulating, the utility model provides a can ensure data high speed transmission's stability ability.
Description
Technical Field
The utility model relates to a FFC winding displacement field, in particular to double conductor can ground anti-interference FFC winding displacement.
Background
The FFC winding displacement is also called as flexible flat cable, the number and the spacing of the conducting wires can be selected at will, so that the connection is more convenient, the volume of an electronic product is greatly reduced, the production cost is reduced, the production efficiency is improved, the FFC winding displacement is most suitable for being used as a data transmission cable between a mobile component and a main board, between a PCB and the PCB and in miniaturized electrical equipment, most of the FFC winding displacement in the existing society is fixed, all parameters are basically unchanged and include the signal intensity of the FFC winding displacement, however, the FFC winding displacement is easily interfered by external factors to the transmission signal of the winding displacement, the strongest transmission signal and the fastest transmission speed cannot be maintained under any condition, and meanwhile, the problem of an information high-frequency transmission loop exists.
SUMMERY OF THE UTILITY MODEL
The utility model provides a technical problem provide a two-conductor can ground anti-interference FFC winding displacement that can realize anti-jamming, can ground and solve information high frequency transmission return circuit problem.
The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a two-conductor grounding anti-interference FFC winding displacement, includes the metal shielding layer, the below of metal shielding layer is provided with first polyester insulating involucra, the below of first polyester insulating involucra is provided with earth conductor, the below of ground connection direction is provided with signal conductor, the below of signal conductor is provided with second polyester insulating involucra, the metal shielding layer is used for shielding electromagnetism, makes inside electromagnetism not receive outside electromagnetic interference, makes inside electromagnetic energy not go outside easily, first polyester insulating involucra and second polyester insulating involucra are used for insulating, earth conductor is used for ground connection, signal conductor is used for transmission signal.
Further, the method comprises the following steps: the grounding wire is connected with the metal shielding layer after being folded back, the grounding wire is connected with the metal shielding layer and used for forming a loop of signal high-frequency transmission, and the grounding point of the grounding wire and the metal shielding layer is determined according to the signal transmission requirement.
The utility model has the advantages that: the utility model provides a metal shields the layer and is used for shielding the electromagnetism, makes inside electromagnetism not receive outside electromagnetic interference, and inside electromagnetic energy does not run to the outside easily, the utility model provides a ground wire shields the return circuit that layer ground is used for forming signal high frequency transmission with the metal, solves data high frequency transmission return circuit problem, the utility model provides a first polyester insulating involucra and second polyester insulating involucra are used for insulating, the utility model provides a data high speed transmission's stability can be ensured.
Drawings
FIG. 1 is a FFC cable with dual conductors grounded for anti-interference;
FIG. 2 is a schematic view of the connection between the ground wire and the metal shielding layer;
labeled as: 1. a metal shielding layer; 2. a first polyester insulating film; 3. a ground lead; 4. a signal conductor; 5. a second polyester insulating film.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the following detailed description.
The two-conductor grounded and anti-interference FFC flat cable shown in FIG. 1 comprises a metal shielding layer 1, a first polyester insulating film 2 is arranged below the metal shielding layer 1, a ground wire 3 is arranged below the first polyester insulating film 2, a signal wire 4 is arranged below the ground wire 3, a second polyester insulating film 5 is arranged below the signal wire 4, the metal shielding layer 1 is used for shielding electromagnetism, so that the inside electromagnetism is not interfered by the outside electromagnetism, the inside electromagnetic energy cannot easily escape to the outside, the first polyester insulating film 2 and the second polyester insulating film 5 are used for insulation, the ground wire 3 is used for grounding, and the signal wire 4 is used for transmitting signals.
On the basis, the grounding wire 3 is connected with the metal shielding layer 1 after being reversely folded, the grounding wire 3 is connected with the metal shielding layer 1 and used for forming a loop of signal high-frequency transmission, and the grounding point of the grounding wire 3 and the metal shielding layer 1 is determined according to the signal transmission requirement.
The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (2)
1. A kind of double-conductor can ground the anti-interference FFC winding displacement, characterized by that: the shielding device comprises a metal shielding layer (1), wherein a first polyester insulating film (2) is arranged below the metal shielding layer (1), a grounding wire (3) is arranged below the first polyester insulating film (2), a signal wire (4) is arranged below the grounding wire (3), and a second polyester insulating film (5) is arranged below the signal wire (4).
2. The FFC flex cable of claim 1 in which the two conductors are grounded for interference rejection, wherein: the grounding lead (3) is connected with the metal shielding layer (1) after being reversely folded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921449462.6U CN210378544U (en) | 2019-09-03 | 2019-09-03 | Double-conductor grounded anti-interference FFC (flexible flat cable) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921449462.6U CN210378544U (en) | 2019-09-03 | 2019-09-03 | Double-conductor grounded anti-interference FFC (flexible flat cable) |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210378544U true CN210378544U (en) | 2020-04-21 |
Family
ID=70253919
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921449462.6U Active CN210378544U (en) | 2019-09-03 | 2019-09-03 | Double-conductor grounded anti-interference FFC (flexible flat cable) |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210378544U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111965563A (en) * | 2020-07-23 | 2020-11-20 | 深圳米飞泰克科技有限公司 | Flat cable detection device |
-
2019
- 2019-09-03 CN CN201921449462.6U patent/CN210378544U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111965563A (en) * | 2020-07-23 | 2020-11-20 | 深圳米飞泰克科技有限公司 | Flat cable detection device |
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