CN211929081U - Flexible banded high-speed data transmission line - Google Patents
Flexible banded high-speed data transmission line Download PDFInfo
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- CN211929081U CN211929081U CN202020798628.1U CN202020798628U CN211929081U CN 211929081 U CN211929081 U CN 211929081U CN 202020798628 U CN202020798628 U CN 202020798628U CN 211929081 U CN211929081 U CN 211929081U
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Abstract
The utility model discloses a flexible strip-shaped high-speed data transmission line, which comprises at least two conducting wires, an upper laminating part and a lower laminating part, wherein the upper laminating part and the lower laminating part are laminated up and down, and the conducting wires are arranged in parallel at intervals and are positioned between the upper laminating part and the lower laminating part; the upper bonding part and the lower bonding part sequentially comprise a shielding layer, a first adhesive layer, a first insulating layer, a second insulating layer and a second adhesive layer from outside to inside; the first insulating layer is any one of a fluorinated ethylene propylene insulating layer, a meltable polytetrafluoroethylene insulating layer, a polytetrafluoroethylene insulating layer and a foamed fluorinated ethylene propylene insulating layer; the second insulating layer is a polyimide film or a polyimide composite film. The utility model discloses it is flexible good, high low temperature resistance can be splendid with the resistant irradiation performance, and the second insulating layer has improved the stability of wire rod transmission data, makes the wire rod have high low temperature resistant, resistant irradiation, transmission performance stable, small, characteristics such as light in weight especially are applicable to the aerospace field.
Description
Technical Field
The utility model relates to a communication wire cable technical field, in particular to flexible banded high rate data transmission line.
Background
One of the keys of the small and light electronic equipment is the small and light data transmission medium-transmission line, if the size of the existing high-speed data transmission line can be reduced, the size of the matched terminal and the size of the PCB can be simultaneously reduced, and the small and light electronic equipment can be greatly stepped. Chinese patent application 201510539316.2 discloses a flat cable comprising an upper insulating layer and a lower insulating layer, a plurality of flat conductors are sandwiched between the upper insulating layer and the lower insulating layer, a gap is provided between the flat conductors, and the upper insulating layer and the lower insulating layer are bonded together by an adhesive. The flat cable disclosed in this patent can be used for wiring connection of audio, electric appliances, lighting, etc., but the upper insulating layer and the lower insulating layer of the flat cable are not completely bonded, a gap is formed between the flat conductors, and the flat cable disclosed in this patent cannot be used for high-speed data transmission, and the upper insulating layer and the lower insulating layer have no material layer required for a communication transmission line such as a shielding layer, and at the same time, the flat cable is poor in flexibility and is difficult to be applied to a use occasion requiring frequent movement and bending.
The strip line is a data transmission line in which a strip conductor is arranged between two parallel planes (or power planes) in a chemical etching or laser etching mode, is usually buried in a PCB, and has the advantages of small volume, light weight, wide frequency band, high Q value, simple process, low cost and the like. However, such a strip line is only suitable for PCB routing and cannot be applied to a use occasion requiring frequent movement and bending.
The applicant of the present application, "Dongguan jin Xinnuo electronics Co., Ltd" filed another patent (application number: 201922123767.4, name: an ultra-thin high-speed data transmission line) at 2019.12.02, which includes at least two conductive wires, an upper bonding portion and a lower bonding portion, the upper bonding portion and the lower bonding portion are bonded up and down, the conductive wires are arranged in parallel at intervals and are located between the upper bonding portion and the lower bonding portion; the conductive wire is a flat conductive wire, the upper attaching part and the lower attaching part are both flat strip-shaped composite material bodies, and the upper attaching part and the lower attaching part sequentially comprise a shielding layer, a first adhesive layer, an insulating layer and a second adhesive layer from outside to inside; wherein the insulating layer is any one of a polyethylene insulating layer, a foamed polyethylene insulating layer, a polypropylene insulating layer, a foamed polypropylene insulating layer, a fluorinated ethylene propylene insulating layer, a meltable polytetrafluoroethylene insulating layer, a polytetrafluoroethylene insulating layer and a foamed fluorinated ethylene propylene insulating layer. The data transmission line is tightly attached and provided with material layers required by communication transmission lines such as shielding layers, the thickness of the data transmission line is only half of that of the existing data transmission line, the small and light weight of the electronic equipment can be further assisted, and the flexibility of the data transmission line is greatly improved compared with that of the traditional strip line. However, the following disadvantages exist: firstly, the high and low temperature resistance and the radiation resistance are not high enough, and the application range is narrow; and secondly, only one insulating layer is adopted, the size stability of the insulating layer is difficult to guarantee in the laminating process, the impedance of the wire rod is easy to fluctuate irregularly in the laminating process, and the stability of the wire rod for transmitting data is poor.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is to provide a flexible strip-shaped high-speed data transmission line according to the deficiency of the prior art, the data transmission line has good flexibility and can be applied to the use occasions needing frequent moving and bending; the data transmission line is made of a material with excellent high and low temperature resistance and irradiation resistance, the high temperature resistance grade of the wire reaches 300 ℃, the polyimide of the second insulating layer can not be brittle in liquid helium at the temperature of-269 ℃, and the wire is small in size and light in weight and is particularly suitable for the field of aerospace; the data transmission line adopts the polyimide film with high elastic modulus as the second insulating layer, the dimensional stability of the insulating layer in the laminating process is ensured, the irregular fluctuation of the impedance of the wire rod caused by the laminating process is avoided, the stability of data transmission of the wire rod is improved, the polyimide has good dielectric property, the dielectric constant is about 3.4, the dielectric loss is 10-3, the properties can still be kept at a high level in a wide temperature range and a wide frequency range, and the transmission stability of the wire rod in an extreme environment and an ultrahigh frequency band can be ensured.
In order to solve the technical problem, the technical scheme of the utility model is that: a flexible strip-shaped high-speed data transmission line comprises at least two conducting wires, an upper attaching part and a lower attaching part, wherein the upper attaching part and the lower attaching part are attached up and down; the upper bonding part and the lower bonding part are both flat strip-shaped composite material bodies, the upper bonding part sequentially comprises a shielding layer, a first adhesive layer, a first insulating layer, a second insulating layer and a second adhesive layer from outside to inside, and the lower bonding part sequentially comprises the shielding layer, the first adhesive layer, the first insulating layer, the second insulating layer and the second adhesive layer from outside to inside; the first insulating layer is any one of a fluorinated ethylene propylene insulating layer, a meltable polytetrafluoroethylene insulating layer, a polytetrafluoroethylene insulating layer and a foamed fluorinated ethylene propylene insulating layer; the second insulating layer is a polyimide film or a polyimide composite film.
Preferably, the conductive wire is a flat conductive wire. Furthermore, the thickness of the conducting wires is 0.01 mm-0.15 mm, the width of the conducting wires is 0.2 mm-1.5 mm, and the distance between two adjacent conducting wires is 0.1 mm-1.2 mm; the sum of the thicknesses of the conducting wire, the upper bonding part and the lower bonding part is 0.05 mm-1.0 mm.
Preferably, the conductive wire is a circular conductive wire. Furthermore, the diameter of the conducting wire is 0.01 mm-0.5 mm, and the distance between two adjacent conducting wires is 0.1 mm-1.2 mm; the sum of the thicknesses of the conducting wire, the upper bonding part and the lower bonding part is 0.06-1.2 mm.
Preferably, the upper attaching portion and the lower attaching portion are vertically symmetrical.
Preferably, the conductive wire is any one of a silver-plated copper conductive wire, a tin-plated copper conductive wire, a bare copper conductive wire, a silver-plated copper-clad steel conductive wire, and a silver-plated copper-clad aluminum conductive wire.
Preferably, the shielding layer is a metal foil layer, and the metal foil layer is formed by combining any one or more than two of an aluminum foil layer, a copper foil layer and a silver foil layer.
Preferably, the first adhesive layer and the second adhesive layer are both hot-melt adhesive layers. Further, the second adhesive layer of the upper attaching portion and the second adhesive layer of the lower attaching portion form an integral adhesive layer and wrap each conductive wire.
The utility model has the advantages that:
one of which, the utility model discloses an go up laminating portion and lower laminating portion and be the banding combined material body of flat, go up laminating portion and lower laminating portion and include the shielding layer respectively from outer to interior in proper order, first glue film, the first insulation layer, second insulating layer and second glue film, ground plane can be regarded as to the shielding layer, preferred adoption foil, first insulation layer and second insulating layer are plastic film as the dielectric, parallel interval arrangement's flat or circular conduction line is placed to the centre, make the wire rod possess outstanding flexibility, and can adapt to frequent movement and make a round trip to the reciprocating bending.
Two of the two, the utility model discloses an arbitrary one in the first insulation layer for gathering perfluor ethylene propylene insulating layer, fusibility polytetrafluoroethylene insulating layer, foaming and gathering perfluor ethylene propylene insulating layer, the second insulation layer is polyimide film or polyimide composite film, makes the material of this adoption be resistant high low temperature performance like this, the splendid material of resistant irradiation performance, and the high temperature resistant grade of wire rod can reach 300 ℃. The second insulating layer polyimide can not be brittle in liquid helium at-269 ℃, and the wire has small volume and light weight, and is particularly suitable for the field of aerospace.
Thirdly, the utility model discloses a polyimide film or polyimide composite film that elastic modulus is high have guaranteed the dimensional stability of laminating in-process insulating layer as the second insulating layer, and the wire rod impedance that avoids laminating technology to lead to is irregular undulant, has improved the stability of wire rod transmission data, polyimide film moreoverHas good dielectric property, dielectric constant of about 3.4 and dielectric loss of 10-3The performances can be kept at a higher level in a wide temperature range and a wide frequency range, and the transmission stability of the wire in an extreme environment and an ultrahigh frequency band is ensured.
Drawings
Fig. 1 is a schematic diagram of the structure of the flexible strip-shaped high-speed data transmission line.
Fig. 2 is a structural view of a flexible strip-shaped high-speed data transmission line having a detailed structure of an upper bonding portion and a lower bonding portion.
Detailed Description
The structure and operation of the present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 1 and 2, the utility model discloses a flexible strip-shaped high-speed data transmission line, which comprises at least two transmission lines 1, an upper attaching part 2 and a lower attaching part 3, wherein the upper attaching part 2 and the lower attaching part 3 are attached up and down, and the transmission lines 1 are arranged in parallel at intervals and are positioned between the upper attaching part 2 and the lower attaching part 3; the upper attaching part 2 and the lower attaching part 3 are both flat strip-shaped composite material bodies, the upper attaching part 2 sequentially comprises a shielding layer 4, a first adhesive layer 5, a first insulating layer 6, a second insulating layer 7 and a second adhesive layer 8 from outside to inside, and the lower attaching part 3 sequentially comprises the shielding layer 4, the first adhesive layer 5, the first insulating layer 6, the second insulating layer 7 and the second adhesive layer 8 from outside to inside; the first insulating layer 6 is any one of a fluorinated ethylene propylene insulating layer, a meltable polytetrafluoroethylene insulating layer, a polytetrafluoroethylene insulating layer and a foamed fluorinated ethylene propylene insulating layer; the second insulating layer 7 is a polyimide film or a polyimide composite film.
As shown in fig. 2, the conductive wire 1 is a flat conductive wire, the thickness H1 of the conductive wire 1 is 0.01mm to 0.15mm, the width H2 is 0.2mm to 1.5mm, and the distance between two adjacent conductive wires 1 is 0.1mm to 1.2 mm; the sum H3 of the thicknesses of the conductive wire 1, the upper bonding part 2 and the lower bonding part 3 is 0.05 mm-1.0 mm. Preferably, the thickness of the shielding layer 4 is 0.006-0.1 mm, the thickness of the first glue layer 5 is 0.003-0.05 mm, the thickness of the first insulating layer 6 is 0.008-0.2 mm, the thickness of the second insulating layer 7 is 0.005-0.08 mm, and the thickness of the second glue layer 8 is 0.003-0.05 mm.
The utility model has another embodiment that the conducting wires 1 adopt round conducting wires, the diameter of the conducting wires 1 is 0.01 mm-0.5 mm, and the distance between two adjacent conducting wires 1 is 0.1 mm-1.2 mm; the sum of the thicknesses of the conductive wire 1, the upper bonding part 2 and the lower bonding part 3 is 0.06 mm-1.2 mm. Preferably, the thickness of the shielding layer 4 is 0.006-0.1 mm, the thickness of the first glue layer 5 is 0.003-0.05 mm, the thickness of the first insulating layer 6 is 0.008-0.2 mm, the thickness of the second insulating layer 7 is 0.005-0.08 mm, and the thickness of the second glue layer 8 is 0.003-0.05 mm.
As shown in fig. 1 and 2, the upper attaching portion 2 and the lower attaching portion 3 are vertically symmetrical. That is, the shielding layer 4 of the upper bonding portion is symmetrical to the shielding layer 4 of the lower bonding portion, the first glue layer 5 of the upper bonding portion is symmetrical to the first glue layer 5 of the lower bonding portion, the first insulating layer 6 of the upper bonding portion is symmetrical to the first insulating layer 6 of the lower bonding portion, the second insulating layer 7 of the upper bonding portion is symmetrical to the second insulating layer 7 of the lower bonding portion, and the second glue layer 8 of the upper bonding portion is symmetrical to the second glue layer 8 of the lower bonding portion.
As shown in fig. 1 and 2, the conductive wire 1 is any one of a silver-plated copper conductive wire, a tin-plated copper conductive wire, a bare copper conductive wire, a silver-plated copper-clad steel conductive wire, and a silver-plated copper-clad aluminum conductive wire.
As shown in fig. 1 and 2, the shielding layer 4 is a metal foil layer, and the metal foil layer is formed by combining one or more than two of an aluminum foil layer, a copper foil layer and a silver foil layer.
As shown in fig. 1 and 2, the first adhesive layer 5 and the second adhesive layer 8 are both hot melt adhesive layers. Further, the second adhesive layer 8 of the upper attaching portion and the second adhesive layer 8 of the lower attaching portion form an integral adhesive layer and wrap each conductive wire 1.
The utility model discloses add man-hour, once only attach the both sides on the long limit of 1 of conduction line with last laminating layer 2 and lower laminating layer 3 through rigging machine. First glue film 5 and second glue film 8 are hot melt adhesive layer, can be in the same place the adhesion of conducting wire 1, first insulating layer 6, second insulating layer 7 and shielding layer 4 after being heated in the laminating process.
To sum up, the embodiment of the utility model provides a traditional stripline compares, the utility model discloses a metal forming is as ground plane, and plastic film places flat conducting wire or circular conducting wire as the dielectric in the middle of, makes the wire rod possess flexibility and adaptable frequent movement and make a round trip to reciprocate to bend. The utility model discloses a material be resistant high low temperature performance, the splendid material of resistant irradiation performance, the high polyimide film of second insulating layer adoption elastic modulus has improved the stability of wire rod transmission data, makes the wire rod have resistant high low temperature, resistant irradiation, transmission performance stable, small, characteristics such as light in weight, are particularly useful for the aerospace field.
The above, only the utility model discloses preferred embodiment, all be according to the utility model discloses a technical scheme does any slight modification, the equivalent change and the modification to above embodiment, all belong to the utility model discloses technical scheme's within range.
Claims (10)
1. A flexible strip high rate data transmission line characterized by: the conductive wire bonding device comprises at least two conductive wires, an upper bonding part and a lower bonding part, wherein the upper bonding part and the lower bonding part are bonded up and down, and the conductive wires are arranged in parallel at intervals and are positioned between the upper bonding part and the lower bonding part; the upper bonding part and the lower bonding part are both flat strip-shaped composite material bodies, the upper bonding part sequentially comprises a shielding layer, a first adhesive layer, a first insulating layer, a second insulating layer and a second adhesive layer from outside to inside, and the lower bonding part sequentially comprises the shielding layer, the first adhesive layer, the first insulating layer, the second insulating layer and the second adhesive layer from outside to inside; the first insulating layer is any one of a fluorinated ethylene propylene insulating layer, a meltable polytetrafluoroethylene insulating layer, a polytetrafluoroethylene insulating layer and a foamed fluorinated ethylene propylene insulating layer; the second insulating layer is a polyimide film or a polyimide composite film.
2. The flexible strip-like high-rate data transmission line of claim 1, wherein: the conducting wire is a flat conducting wire.
3. The flexible strip-like high-rate data transmission line of claim 2, wherein: the thickness of the conducting wire is 0.01 mm-0.15 mm, the width of the conducting wire is 0.2 mm-1.5 mm, and the distance between two adjacent conducting wires is 0.1 mm-1.2 mm; the sum of the thicknesses of the conducting wire, the upper bonding part and the lower bonding part is 0.05 mm-1.0 mm.
4. The flexible strip-like high-rate data transmission line of claim 1, wherein: the conducting wire is a round conducting wire.
5. The flexible strip high rate data transmission line of claim 4, wherein: the diameter of the conducting wire is 0.01 mm-0.5 mm, and the distance between two adjacent conducting wires is 0.1 mm-1.2 mm; the sum of the thicknesses of the conducting wire, the upper bonding part and the lower bonding part is 0.06-1.2 mm.
6. The flexible strip-like high-rate data transmission line of claim 1, wherein: the upper attaching portion and the lower attaching portion are vertically symmetrical.
7. The flexible strip-like high-rate data transmission line of claim 1, wherein: the conductive wire is any one of a silver-plated copper conductive wire, a tin-plated copper conductive wire, a bare copper conductive wire, a silver-plated copper-clad steel conductive wire and a silver-plated copper-clad aluminum conductive wire.
8. The flexible strip-like high-rate data transmission line of claim 1, wherein: the shielding layer is a metal foil layer, and the metal foil layer is formed by combining any one or more than two of an aluminum foil layer, a copper foil layer and a silver foil layer.
9. The flexible strip-like high-rate data transmission line of claim 1, wherein: the first adhesive layer and the second adhesive layer are both hot-melt adhesive layers.
10. A flexible strip-like high-rate data transmission line according to claim 9, characterized in that: the second adhesive layer of the upper attaching portion and the second adhesive layer of the lower attaching portion form an integral adhesive layer and wrap each conducting wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020798628.1U CN211929081U (en) | 2020-05-14 | 2020-05-14 | Flexible banded high-speed data transmission line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020798628.1U CN211929081U (en) | 2020-05-14 | 2020-05-14 | Flexible banded high-speed data transmission line |
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| Publication Number | Publication Date |
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| CN211929081U true CN211929081U (en) | 2020-11-13 |
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| CN202020798628.1U Active CN211929081U (en) | 2020-05-14 | 2020-05-14 | Flexible banded high-speed data transmission line |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220718 Address after: 518000 workshop 102, jinxinnuo 1, Baolong Second Road, Baolong community, Baolong street, Longgang District, Shenzhen, Guangdong Province Patentee after: Shenzhen suno Technology Co.,Ltd. Address before: No. 658, Meijing West Road, xiniupi village, Dalang Town, Dongguan City, Guangdong Province, 523000 Patentee before: DONGGUAN KINGSIGNAL ELECTRONICS Co.,Ltd. |
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| TR01 | Transfer of patent right |