CN211578425U - Anti-interference connecting cable - Google Patents
Anti-interference connecting cable Download PDFInfo
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- CN211578425U CN211578425U CN202020660573.8U CN202020660573U CN211578425U CN 211578425 U CN211578425 U CN 211578425U CN 202020660573 U CN202020660573 U CN 202020660573U CN 211578425 U CN211578425 U CN 211578425U
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Abstract
The utility model discloses an anti-interference connecting cable, which comprises a cable core, a plurality of low-speed signal transmission lines, an ultra-high-speed signal transmission line and an electronic cable; the wave absorbing material layer is wrapped on the outer layer of the wire core and wraps, fixes and forms the low-speed signal transmission line, the ultra-high-speed signal transmission line and the electronic cable; the outer sheath is wrapped on the outer layer of the wave-absorbing material layer; the wave-absorbing material layer comprises an aluminum foil layer and a graphite hydrocarbon layer, and the aluminum foil layer is attached to the graphite hydrocarbon layer through glue; the wave-absorbing material layer is formed by attaching an aluminum layer, a graphite hydrocarbon layer and glue, the arrangement of carbon atoms of graphite hydrocarbon is similar to that of graphite, the carbon atoms are mixed into a single-layer two-dimensional crystal formed by honeycomb lattice arrangement in an sp2 mixed rail domain, the structure is very compact and stable, and the resistivity of the wave-absorbing material layer is about 10-6 omega cm and lower than that of copper or silver. Because the resistivity of the cable is extremely low and the electron migration speed is extremely high, when electromagnetic waves contact the cable, the electromagnetic waves can be quickly drained from the surface to the ground, and the interference on the internal cable core is avoided.
Description
Technical Field
The utility model relates to a technical field of cable specifically is an anti-interference connection cable.
Background
The application and development of consumer electronic products are changing day by day, the use function is gradually improved, the data processing capability is gradually developed in an intelligent way, but with the increase of the number of electronic products used in unit space, the electromagnetic wave generated by radiation is greatly increased, and the products are required to have higher shielding performance on the electromagnetic wave. In addition, as the number of electronic products increases, the occupied space of the original products becomes more crowded, so that products with smaller volume can be favored by consumers.
Electromagnetic shielding means that when electromagnetic waves are transmitted to the surface of an electromagnetic shielding material, the electromagnetic waves generated by an electromagnetic radiation field cannot enter a shielded area by reflection and absorption of the shielding material. The traditional cable adopts metal conductors to weave or wind for shielding, on one hand, the shielding can not be completely carried out, and the shielding effect is not stable enough due to the influence of the structure and the existence of crossed gaps and metal contact gaps in the weaving and winding processes of the metal conductors; on the other hand, the thickness of the shielding layer made of the metal conductor is generally between 0.2mm and 0.5mm, and the metal conductor occupies a large volume and has a large weight; and when using metal conductor to weave and winding structure, its production speed is slower, uses the board comparatively many, and it is big to invest the manual work.
SUMMERY OF THE UTILITY MODEL
The utility model provides an anti-interference connecting cable.
An anti-interference connection cable comprises
The cable core comprises a plurality of low-speed signal transmission lines, ultra-high-speed signal transmission lines and electronic cables;
the wave absorbing material layer is wrapped on the outer layer of the wire core and wraps, fixes and forms the low-speed signal transmission line, the ultra-high-speed signal transmission line and the electronic cable;
the outer sheath is wrapped on the outer layer of the wave-absorbing material layer;
the wave-absorbing material layer comprises an aluminum foil layer and a graphite hydrocarbon layer, and the aluminum foil layer and the graphite hydrocarbon layer are laminated through glue.
In one embodiment, the low-speed signal transmission line comprises two signal transmission lines, two large-current transmission lines and a filler, the two signal transmission lines and the two large-current transmission lines are abutted against each other, and the filler is filled in a gap between the signal transmission lines and the large-current transmission lines.
In one embodiment, the ultra-high speed signal transmission line comprises a first conductor, a first insulating layer, a winding shielding layer, a copper foil shielding layer and a hot-melt mylar layer, wherein the insulating layer, the winding shielding layer, the copper foil shielding layer and the hot-melt mylar layer are sequentially wound outside the first conductor.
In one embodiment, the first conductor is stranded with 7 0.1mm silver plated copper wires.
In one embodiment, the first insulating layer is made of FEP.
In one embodiment, the winding shielding layer is formed by winding 48 copper wires with the thickness of 0.05 mm.
In one embodiment, the copper foil shielding layer is formed by winding a copper foil with the thickness of 0.07mm and the width of 2.5 mm.
In one embodiment, the hot-melt mylar layer is formed by winding color low-temperature hot-melt mylar with the thickness of 0.011mm and the width of 4 mm.
In one embodiment, the thickness of the wave-absorbing material layer is 0.05 mm.
In one embodiment, the outer sheath is made of a TPE material.
Above-mentioned anti-interference connection cable uses absorbing material to replace traditional metal shielding material's anti-interference high speed data connection cable, has following beneficial effect:
first, better electromagnetic wave absorption effect. The wave-absorbing material layer is formed by laminating an aluminum layer, a graphite hydrocarbon layer and glue. The arrangement of carbon atoms of the graphitic hydrocarbon is similar to that of graphite, and is a single-layer two-dimensional crystal formed by arranging carbon atoms in a honeycomb lattice by sp2 mixed rail domains, and the structure is very compact and stable. Its resistivity is about 10-6 Ω cm, lower than copper or silver. Because the resistivity of the cable is extremely low and the electron migration speed is extremely high, when electromagnetic waves contact the cable, the electromagnetic waves can be quickly drained from the surface to the ground, and the interference on the internal cable core is avoided. Compared with the traditional metal shield with high resistivity and coverage rate which does not reach 100 percent of effect, the metal shield has better wave-absorbing effect.
Second, smaller volume and weight. The thickness of the novel wave-absorbing material is only about 0.05mm, and compared with the traditional metal shielding, the thickness of the novel wave-absorbing material is 0.2-0.5 mm, and the thickness of the novel wave-absorbing material is reduced by more than one time. Is more competitive in the consumer cable market.
Thirdly, the production efficiency is higher. The low efficiency of the traditional metal shielding weaving or winding is well known, the working hours of weaving or winding the process account for 30% -40% of the working hours of manufacturing the whole cable by taking the working hours of manufacturing USB type and HDMI type cables as examples, the wave-absorbing material is adopted to replace the traditional metal shielding, the weaving or winding process after cabling is omitted, and the working hours are greatly reduced.
Fourthly, the flexibility is better. Because the outer metal shielding layer is omitted, the whole cable is softer and has better hand feeling.
Drawings
Fig. 1 is a schematic structural diagram of an anti-interference connection cable according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a low-speed signal transmission line of an anti-interference connection cable according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of an ultra-high speed signal transmission line of an anti-interference connection cable according to an embodiment of the present invention.
Detailed Description
In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
As shown in FIG. 1, an anti-tamper connection cable includes
A core 100 including a plurality of low-speed signal transmission lines 110, ultra-high-speed signal transmission lines 120, and an electronic cable 130;
the wave-absorbing material layer 200 is wrapped on the outer layer of the wire core 100 and wraps, fixes and forms the low-speed signal transmission line 110, the ultra-high-speed signal transmission line 120 and the electronic cable 130;
the outer sheath 300 wraps the wave-absorbing material layer 200;
the wave-absorbing material layer 200 comprises an aluminum foil layer and a graphite hydrocarbon layer, wherein the aluminum foil layer is attached to the graphite hydrocarbon layer through glue.
The low-speed signal transmission line 110 includes two signal transmission lines 111, two large-current transmission lines 112 and a filler 113, the two signal transmission lines 111 and the two large-current transmission lines 112 are abutted against each other, and the filler 113 is filled in a gap between the signal transmission lines 111 and the large-current transmission lines 112.
The signal transmission line 111 comprises a second conductor 1111 and a second insulating layer, wherein the second conductor 1111 is formed by stranding 7 0.08mm tinned copper wires, and the second insulating layer is made of an FEP Teflon material; the large current transmission line 112 includes a third conductor 1121 and a third insulating layer, and the third conductor 1121 is formed by twisting 38 0.08mm tin-plated copper wires; the third insulating layer is made of an FEP (fluorinated ethylene propylene) teflon material; the filler 113 includes at least one of cotton thread or nylon thread or PP string. The low-speed data transmission lines 110 are first grouped into one strand by using a vertical strander and distributed in the center of the whole cable.
The electronic cable 130 includes a fourth conductor 131, and the fourth conductor 131 is formed by twisting 7 0.08mm tinned copper wires.
Further, the thickness of the wave-absorbing material layer is 0.05 mm.
Like this, anti-interference connection cable uses absorbing material to replace traditional metal shielding material's anti-interference high speed data connection cable, has following beneficial effect:
first, better electromagnetic wave absorption effect. The wave-absorbing material layer 200 is formed by laminating an aluminum layer, a graphite hydrocarbon layer and glue. The arrangement of carbon atoms of the graphitic hydrocarbon is similar to that of graphite, and is a single-layer two-dimensional crystal formed by arranging carbon atoms in a honeycomb lattice by sp2 mixed rail domains, and the structure is very compact and stable. Its resistivity is about 10-6 Ω · cm, lower than copper or silver. Because the resistivity of the cable is extremely low and the electron migration speed is extremely high, when electromagnetic waves contact the cable, the electromagnetic waves can be quickly drained from the surface to the ground, and the interference on the internal cable core is avoided. Compared with the traditional metal shield with high resistivity and coverage rate which does not reach 100 percent of effect, the metal shield has better wave-absorbing effect.
Second, smaller volume and weight. The thickness of the novel wave-absorbing material is only about 0.05mm, and compared with the traditional metal shielding, the thickness of the novel wave-absorbing material is 0.2-0.5 mm, and the thickness of the novel wave-absorbing material is reduced by more than one time. Is more competitive in the consumer cable market.
Thirdly, the production efficiency is higher. The low efficiency of the traditional metal shielding weaving or winding is well known, the working hours of weaving or winding the process account for 30% -40% of the working hours of manufacturing the whole cable by taking the working hours of manufacturing USB type and HDMI type cables as examples, the wave-absorbing material is adopted to replace the traditional metal shielding, the weaving or winding process after cabling is omitted, and the working hours are greatly reduced.
Fourthly, the flexibility is better. Because the outer metal shielding layer is omitted, the whole cable is softer and has better hand feeling.
In one embodiment, the ultra-high speed signal transmission line 120 includes a first conductor 121, a first insulating layer 122, a winding shield layer 123, a copper foil shield layer 124, and a hot-melt mylar layer 125, wherein the first insulating layer 122, the winding shield layer 123, the copper foil shield layer 124, and the hot-melt mylar layer 125 are sequentially wound around the first conductor 121.
In one embodiment, the first conductor 121 is stranded of 7 0.1mm silver plated copper wires.
In one embodiment, the first insulating layer 122 is made of FEP.
In one embodiment, the winding shield 123 is formed by winding 48 0.05mm copper wires.
In one embodiment, the copper foil shielding layer 124 is made by winding a copper foil with a thickness of 0.07mm and a width of 2.5 mm.
In one embodiment, the hot-melt mylar layer 125 is wound by using a color low-temperature hot-melt mylar with a thickness of 0.011mm and a width of 4 mm.
Silver-plated copper is a material with better conductivity than tin and copper, and because signal current tends to be transmitted on the surface of a conductor during ultrahigh-speed signal transmission, only a thin layer (0.5u in thickness) needs to be plated, so that the performance is improved, and the cost is considered. The insulation outside the conductor is extruded by adopting a Teflon sizing material which is high temperature resistant, swing resistant and less in transmission signal loss.
Further, the winding shielding layer 123 is formed by winding 48 copper wires with the diameter of 0.05mm, the shielding rate reaches more than 95%, a copper foil shielding layer 124 is wound outside to reinforce the shielding effect, and then a hot melting mylar layer 125 is wound outside to fix the shielding layer. And the three layers: the winding shielding layer 123, the copper foil shielding layer 124 and the hot-melt mylar layer 125 are not produced by a plurality of processes, but are produced by a winding and taping integrated machine at one time, so that the working hours are effectively reduced, and the efficiency is increased.
Further, when the wave-absorbing material layer 200 is fixed and integrated with the inner cable core, nylon or cotton or PP ropes are used for filling, so that the bending resistance and the bearing capacity of the wire rod and the overall roundness of the wire rod are improved. The wave-absorbing material layer 200 adopts a graphite hydrocarbon aluminum foil as a base material, and replaces the traditional metal shielding layer from the advantages of interference resistance, simplicity, flexibility and the like. The existing winding process of the star twister is used during production, and a machine table does not need to be improved or newly added.
The number of the ultra-high speed signal transmission lines 120 is 8, and after the core wires are extruded out, the ultra-high speed signal transmission lines are formed by winding and taping integrated machine processing, and the eight ultra-high speed signal transmission lines 120 are distinguished by using eight color low-temperature hot-melting mylar layers 125 with different colors.
The wave-absorbing material layer 200 is formed by wrapping graphite hydrocarbon aluminum foils with the thickness of 0.05mm and the width of 15 mm.
In one embodiment, the outer sheath 300 is made of a TPE material.
The outer sheath 300 is made of environment-friendly, soft and flame-retardant TPE.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. An anti-interference connection cable, characterized in that: comprises that
The cable core comprises a plurality of low-speed signal transmission lines, ultra-high-speed signal transmission lines and electronic cables;
the wave absorbing material layer is wrapped on the outer layer of the wire core and wraps, fixes and forms the low-speed signal transmission line, the ultra-high-speed signal transmission line and the electronic cable;
the outer sheath is wrapped on the outer layer of the wave-absorbing material layer;
the wave-absorbing material layer comprises an aluminum foil layer and a graphite hydrocarbon layer, and the aluminum foil layer and the graphite hydrocarbon layer are laminated through glue.
2. The tamper-resistant connection cable of claim 1, wherein: the low-speed signal transmission line comprises two signal transmission lines, two large-current transmission lines and a filler, wherein the two signal transmission lines and the two large-current transmission lines are abutted against each other, and the filler is filled in a gap between the signal transmission lines and the large-current transmission lines.
3. The tamper-resistant connection cable of claim 2, wherein: the ultrahigh-speed signal transmission line comprises a first conductor, a first insulating layer, a winding shielding layer, a copper foil shielding layer and a hot-melt mylar layer, wherein the insulating layer, the winding shielding layer, the copper foil shielding layer and the hot-melt mylar layer are sequentially wound outside the first conductor.
4. The tamper-resistant connection cable of claim 3, wherein: the first conductor is formed by stranding 7 silver-plated copper wires with the thickness of 0.1 mm.
5. The tamper-resistant connection cable of claim 3, wherein: the first insulating layer is made of an FEP material.
6. The tamper-resistant connection cable of claim 3, wherein: the winding shielding layer is formed by winding 48 copper wires with the thickness of 0.05 mm.
7. The tamper-resistant connection cable of claim 3, wherein: the copper foil shielding layer is formed by winding a copper foil with the thickness of 0.07mm and the width of 2.5 mm.
8. The tamper-resistant connection cable of claim 3, wherein: the hot-melt mylar layer is formed by winding color low-temperature hot-melt mylar with the thickness of 0.011mm and the width of 4 mm.
9. The tamper-resistant connection cable of claim 1, wherein: the thickness of the wave-absorbing material layer is 0.05 mm.
10. The tamper-resistant connection cable of claim 1, wherein: the outer sheath is made of TPE materials.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020660573.8U CN211578425U (en) | 2020-04-26 | 2020-04-26 | Anti-interference connecting cable |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020660573.8U CN211578425U (en) | 2020-04-26 | 2020-04-26 | Anti-interference connecting cable |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114822971A (en) * | 2021-01-21 | 2022-07-29 | 华为技术有限公司 | Cable, cable assembly and communication system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114822971A (en) * | 2021-01-21 | 2022-07-29 | 华为技术有限公司 | Cable, cable assembly and communication system |
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