CN202839062U - High-performance flexible flat data line - Google Patents
High-performance flexible flat data line Download PDFInfo
- Publication number
- CN202839062U CN202839062U CN 201220492508 CN201220492508U CN202839062U CN 202839062 U CN202839062 U CN 202839062U CN 201220492508 CN201220492508 CN 201220492508 CN 201220492508 U CN201220492508 U CN 201220492508U CN 202839062 U CN202839062 U CN 202839062U
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- China
- Prior art keywords
- flat data
- data wire
- foaming
- performance flexible
- dielectric layer
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- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
The utility model discloses a high-performance flexible flat data line, which comprises a flat conductor and an insulating film, wherein the flat conductor is coated by the insulating film; a foaming low dielectric layer and a shielding layer are sequentially pasted outside the insulating film; the foaming low dielectric layer is a foaming body provided with a plurality of sealed foaming holes; and the shielding layer is a shielding belt braided by metal copper wires. The high-performance flexible flat data line is provided with a comprehensive performance of attenuation resistance and interference resistance, and is particularly suitable for transmitting large-capacity and high-frequency data signals.
Description
Technical field
The utility model relates to flat data wire, relates in particular to the flexible flat data wire of a kind of low-k, high shielding.
Background technology
The flexible flat data wire is a kind of signal transmission assembly, itself has the advantages such as arbitrarily deflection, high speed transmission of signals ability, be widely used in many electronic products, and can be directly and umbilical connector mutually plug.Existing this its primary structure of flat data wire is: pasting a pair of dielectric film in a plurality of strap both sides that are arranged in parallel, this dielectric film is attached on the conductor by melt viscosity.
In recent years, the range of application of flexible flat data wire is increasingly extensive, and such cable has been used for being connected to the wiring cable that the electronics devices such as liquid crystal display, plasma scope are used as the high-speed transfer signal.And when the flexible flat data wire as at a high speed, during the high-quality transmission signal, antidamping and the interference free performance of cable just had higher requirement.The dielectric film of present flexible flat data cable adopts individual layer solid layer structure, it has relatively high dielectric constant, capacitance between conductor and insulating barrier or the outer jacket is larger, characteristic impedance value reduces, directly affect the anti-decay property of data wire, when the cable transmission high-frequency signal, seem particularly outstanding.And the use occasion of flat data wire often is in again in the interference of multiple electromagnetic field, but be coated on the interference that flat metal conductor in the dielectric film can be subject to external signal inevitably, therefore, existing flexible flat data wire not only has higher capacitance, and interference free performance is relatively poor, is difficult to adapt to the transmission requirement of large capacity, two-forty, high-quality, high-frequency data.
The utility model content
For the existing above-mentioned deficiency of prior art, technical problem to be solved in the utility model provides a kind of flat data wire of high-performance flexible with preferably antidamping and interference free performance.
In order to solve the problems of the technologies described above, the flat data wire of high-performance flexible of the present utility model comprises strap and dielectric film, and this strap is coated in the dielectric film, and described dielectric film is pasted with foaming low dielectric layer and screen outward successively.
In said structure, at first be bonded with the foaming low dielectric layer in the outside of dielectric film, because this foaming low dielectric layer is to have many close and mutual foaming bodies that are not communicated with foam hole, this contains the foaming body of hollow abscess, so that dielectric constant descends greatly, has lower dielectric constant, mutual capacitance between conductor declines to a great extent, the characteristic impedance value of data wire reduces, the transmission attenuation constant of signal reduces, thereby improved the antidamping ability of flat data wire signal transmission, so that flat data wire has the technical performance of better transmitting high-frequency signal.Owing to also being provided with screen in the outside of dielectric film and foaming low dielectric layer, this screen has blocked effectively that various interference electromagnetic waves have strengthened the whole antijamming capability of data to the interference of data soft arranging wire in the electronic equipment again.This screen also plays protection foaming low dielectric layer simultaneously, strengthens the effect of flat data wire mechanical strength.Therefore this data wire has antidamping and jamproof combination property, is specially adapted to carry high frequency, Large Volume Data signal.
A kind of preferred implementation of the present utility model, described foaming low dielectric layer is the foaming body with some sealing foam holes.The sealing foam hole is conducive to reduce its dielectric constant and characteristic impedance value more.
Another preferred implementation of the present utility model, described screen are metal copper wire braid shielded band.Adopt metal copper wire braiding structure to have preferably integrally bending performance, both had shield effectiveness, do not affect again the flexibility of winding displacement.
Another kind of preferred implementation of the present utility model, described screen are aluminium-plastic tape or compound copper-plastics band.
Description of drawings
Below in conjunction with the drawings and specific embodiments the flat data wire of the utility model high-performance flexible is described in further detail.
Fig. 1 is the structural representation of a kind of embodiment of the flat data wire of the utility model high-performance flexible;
Fig. 2 is structure A shown in Figure 1-A generalized section;
Fig. 3 is the B-B generalized section of Fig. 2.
Among the figure, 1-strap, 2-dielectric film, 3-foaming low dielectric layer, 4-screen, 5-stiffener.
Embodiment
Such as Fig. 1, Fig. 2 and the flat data wire of high-performance flexible shown in Figure 3, some straps 1 are rods arranged in horizontal line, and are coated in the dielectric film 2, thereby form the flexible flat banded structure.The cross section rectangular shaped of strap 1 is a kind of zinc-plated straight angle copper cash; Dielectric film 2 is made by the flame retardance poly ester material, has good intensity and pliability, and it is the carrier of conductor, is again the insulating protective layer of conductor, and this dielectric film 2 is pressed together on the both sides of strap 1 by the PUR hot melt, thereby forms clad structure.Homonymy also posts stiffener 5 by PUR at flat data wire two ends, and this stiffener 5 is made by the flame retardance poly ester material, makes it to be easy to be inserted in the patch with the intensity that strengthens data wire.
On two outer surfaces of dielectric film 2, the bonding foaming low dielectric layer 3 that is coated with, this foaming low dielectric layer 3 adopts polyolefin plastics, or comprise resin combination as the material of main component, adopt the method for physical blowing or change foaming, make it in foaming low dielectric layer 3, to form the foaming body with many close and mutual disconnected sealing foam holes, to reduce its dielectric constant.Around foaming low dielectric layer 3 and data wire thereof, all be coated with as shown in Figure 3 screen 4, the metallic shield woven mesh belt that this screen 4 forms for the metal proof copper-wire braided, this screen 4 is gone back aluminium-plastic tape or compound copper-plastics band, perhaps adopts aluminium foil or Copper Foil to make.
Claims (4)
1. flat data wire of high-performance flexible, comprise strap (1) and dielectric film (2), this strap (1) is coated in the dielectric film (2), it is characterized in that: outer foaming low dielectric layer (3) and the screen (4) of being pasted with successively of described dielectric film (2).
2. the flat data wire of high-performance flexible according to claim 1, it is characterized in that: described foaming low dielectric layer (3) is the foaming body with some sealing foam holes.
3. the flat data wire of high-performance flexible according to claim 1, it is characterized in that: described screen (4) is metal copper wire braid shielded band.
4. the flat data wire of high-performance flexible according to claim 1, it is characterized in that: described screen (4) is aluminium-plastic tape or compound copper-plastics band.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220492508 CN202839062U (en) | 2012-09-26 | 2012-09-26 | High-performance flexible flat data line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220492508 CN202839062U (en) | 2012-09-26 | 2012-09-26 | High-performance flexible flat data line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202839062U true CN202839062U (en) | 2013-03-27 |
Family
ID=47950706
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220492508 Ceased CN202839062U (en) | 2012-09-26 | 2012-09-26 | High-performance flexible flat data line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202839062U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113495477A (en) * | 2020-03-18 | 2021-10-12 | 卡西欧计算机株式会社 | Display device and timepiece |
-
2012
- 2012-09-26 CN CN 201220492508 patent/CN202839062U/en not_active Ceased
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113495477A (en) * | 2020-03-18 | 2021-10-12 | 卡西欧计算机株式会社 | Display device and timepiece |
| CN113495477B (en) * | 2020-03-18 | 2023-04-18 | 卡西欧计算机株式会社 | Display device and timepiece |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C35 | Partial or whole invalidation of patent or utility model | ||
| IW01 | Full invalidation of patent right |
Decision date of declaring invalidation: 20140227 Decision number of declaring invalidation: 22157 Granted publication date: 20130327 |