CN117238574A - Cable and cable assembly - Google Patents
Cable and cable assembly Download PDFInfo
- Publication number
- CN117238574A CN117238574A CN202311348056.1A CN202311348056A CN117238574A CN 117238574 A CN117238574 A CN 117238574A CN 202311348056 A CN202311348056 A CN 202311348056A CN 117238574 A CN117238574 A CN 117238574A
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- cable
- graphene film
- layer
- film layer
- conductive graphene
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 63
- 229910021389 graphene Inorganic materials 0.000 claims abstract description 63
- 239000002131 composite material Substances 0.000 claims abstract description 28
- 230000008054 signal transmission Effects 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 4
- 239000011810 insulating material Substances 0.000 claims description 3
- 229920001169 thermoplastic Polymers 0.000 claims description 3
- 239000004416 thermosoftening plastic Substances 0.000 claims description 3
- 238000005452 bending Methods 0.000 abstract description 7
- 238000009776 industrial production Methods 0.000 abstract description 3
- 239000010410 layer Substances 0.000 description 79
- 238000010521 absorption reaction Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 4
- 239000004020 conductor Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 230000005236 sound signal Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 239000012815 thermoplastic material Substances 0.000 description 1
Abstract
The present invention provides a cable comprising: a cable core for transmitting signals; the composite shielding layer is coated outside the cable core; the insulating layer is coated outside the composite shielding layer; the composite shielding layer comprises at least one stacked good conductive graphene film layer and at least one poor conductive graphene film layer. The cable has good signal interference resistance and good bending performance, has a simple structure, and is suitable for large-scale industrial production. The invention further provides a cable assembly with the cable.
Description
Technical Field
The present invention relates to the field of signal transmission, and more particularly, to a cable and a cable assembly including the same.
Background
With the development of technology, electronic products are becoming more popular. In electronic applications, signal transmission is an important aspect. Cables are widely used as an important transmission medium. However, high-speed transmission of signals, and more complex electromagnetic environments, present serious signal interference and electromagnetic compatibility problems; in addition, the requirements of different use scenes on the data cable are different, and good softness handfeel and bending resistance are required while signal interference and electromagnetic compatibility are concerned, so that no good solution is available at present.
Disclosure of Invention
In view of the above, the present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the invention provides a cable and a cable assembly comprising the same. The cable and the cable assembly provided by the invention have good signal interference resistance and good bending performance. The cable and the cable component have simple structures and are suitable for large-scale industrial production.
To this end, in a first aspect, an embodiment of the present invention provides a cable, including:
a cable core for transmitting signals;
the composite shielding layer is coated outside the cable core; the method comprises the steps of,
the insulating layer is coated outside the composite shielding layer;
the composite shielding layer comprises at least one stacked good conductive graphene film layer and at least one poor conductive graphene film layer.
Preferably, the number of the good conductive graphene film layers is one layer greater than that of the bad conductive graphene film layers, and the good conductive graphene film layers and the bad conductive graphene film layers are stacked at intervals.
Preferably, the composite shielding layer is arranged into a three-layer composite structure of good conductive graphene film layer, poor conductive graphene film layer and good conductive graphene film layer.
Preferably, the conductivity of the good conductive graphene film layer is greater than or equal to 1×10 6 S/m; and/or the conductivity of the poor conductive graphene film layer is 10S/m-1 x 10 5 S/m。
Preferably, the thickness of the good conductive graphene film layer and/or the poor conductive graphene film layer is 10-200 um.
Preferably, the density of the good conductive graphene film layer and/or the bad conductive graphene film layer is less than or equal to 2g/cm 3 。
Preferably, the cable core comprises at least one set of signal transmission set wires, each set of signal transmission set wires comprising a number of mutually insulated signal transmission lines.
Preferably, the insulating layer is made of a thermoplastic insulating material.
In a second aspect, an embodiment of the present invention further provides a cable assembly, including the cable and the interface structure provided in the first aspect, where the cable core is electrically connected to the interface structure.
According to the cable and the cable assembly provided by the embodiment of the invention, the composite shielding layer comprising the good conductive graphene film layer and the poor conductive graphene film layer is arranged, so that the cable is simple in structure, good signal interference resistance is obtained, and meanwhile, the softness and the good bending property of the whole cable are ensured.
Drawings
FIG. 1 is a schematic cross-sectional view of a cable according to an embodiment of the present invention;
fig. 2 is a schematic perspective view of a cable assembly according to another embodiment of the present invention.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.
The following disclosure provides many different embodiments, or examples, for implementing different structures of the invention. In order to simplify the present disclosure, components and arrangements of specific examples are described below. They are, of course, merely examples and are not intended to limit the invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art will recognize the applicability of other processes and/or the use of other materials.
Referring to fig. 1, the present invention is directed to a cable 100, wherein the cable 100 includes a cable core 10, a composite shielding layer 20 and an insulation layer 30.
The cable core 10 is used for transmitting signals. In particular, the cable core 10 may be used for transmitting digital signals, analog signals, audio signals, video signals, etc.
The composite shielding layer 20 is coated outside the cable core 10, and mainly serves to shield and protect the cable core 10 from external signals. Specifically, the composite shielding layer 20 includes at least one stacked good conductive graphene film layer 21 and at least one poor conductive graphene film layer 22. The good conductive graphene film layer 21 is a good conductor, has high conductivity, and further has good electromagnetic wave reflection characteristics; the poor conductive graphene film layer 22 is a poor conductor, has low conductivity, and further has good electromagnetic wave absorption characteristics. In this embodiment, the composite shielding layer 20 combines both electromagnetic wave reflection characteristics and electromagnetic wave absorption characteristics, and has a better shielding effect than a single electromagnetic wave reflection structure.
The insulating layer 30 is coated outside the composite shielding layer 20 to form an external insulating protection structure of the cable 100.
It can be appreciated that in one embodiment, the composite shielding layer 20 is configured as a double-layer structure, and specifically includes a layer of good conductive graphene film layer 21 and a layer of poor conductive graphene film layer 22 that are stacked, and the composite shielding layer 20 has both electromagnetic wave reflection function and electromagnetic wave absorption function, and has better shielding performance.
Further, in another embodiment, in the composite shielding layer 20, the number of the good conductive graphene film layers 21 is one layer greater than the number of the bad conductive graphene film layers 22, and the good conductive graphene film layers 21 and the bad conductive graphene film layers 22 are stacked at intervals. In this embodiment, the upper and lower surface layers of the composite shielding layer 20 are good conductive graphene film layers 21, so as to form an external electromagnetic wave reflection structure, and an electromagnetic wave absorption structure is formed inside, so that the shielding performance of the shielding structure is further improved.
Further, in one embodiment, the composite shielding layer 20 is configured as a three-layer composite structure of a good conductive graphene film layer 21, a poor conductive graphene film layer 22, and a good conductive graphene film layer 21. In this embodiment, form stable sandwich structure, simple structure, the shaping is convenient. The electromagnetic shielding effectiveness test is performed on the cable 100 of the embodiment, and the electromagnetic shielding effectiveness of the composite shielding layer 20 in the frequency range of 100 KHz-325 KHz reaches 100dB.
It will be appreciated that in other embodiments, the composite shielding layer 20 may also be configured as a five-layer structure in which the well-conductive graphene film layer 21 and the poorly-conductive graphene film layer 22 are stacked at intervals.
Further, in another embodiment, the preferred conductivity range of the good conductive graphene film layer 21 is: greater than or equal to 1 x 10 6 S/m; and/or, the preferred conductivity range of the poorly conducting graphene film layer 22 is: 10S/m-1 x 10 5 S/m. In this embodiment, the good conductive graphene film layer 21 has higher electromagnetic wave reflection characteristics, and the poor conductive graphene film layer 22 has higher electromagnetic wave absorption characteristics.
Further, in another embodiment, the preferred thickness range of the good conductive graphene film layer 21 and/or the bad conductive graphene film layer 22 is: 10um to 200um. In this embodiment, the good conductive graphene film layer 21 and the poor conductive graphene film layer 22 have appropriate thicknesses, so that good electromagnetic wave reflection or absorption characteristics are satisfied, and meanwhile, good soft flexibility is achieved.
Further, in another embodiment, the density range of the good conductive graphene film layer 21 and/or the bad conductive graphene film layer 22 is: less than or equal to 2g/cm 3 . In this embodiment, the good conductive graphene film layer 21 and the poor conductive graphene film layer 22 have appropriate densities, which not only satisfy good electromagnetic wave reflection or absorption characteristics, but also achieve good soft flexibility.
Further, in another embodiment, the cable core 10 comprises at least one set of signal transmission set wires 11, each set of signal transmission set wires 11 comprising a number of mutually insulated signal transmission wires 111. Specifically, the signal transmission line 111 is used for transmitting signals. In this embodiment, by such an arrangement, propagation of the combined signal can be realized, and the signal transmission function of the cable 100 can be improved.
Further, in another embodiment, the insulating layer 30 is made of a thermoplastic insulating material. In this embodiment, the insulating layer 30 is made of a thermoplastic material, which has good soft flexibility. The cable 100 of the present embodiment was subjected to a bending test, and the cable 100 had a bending resistance of greater than 2×10 5 And twice.
Referring to fig. 2, an embodiment of the present invention further provides a cable assembly 200, including the cable 100 and the interface structure 201 provided in the first aspect, where the cable core 10 (not shown) is electrically connected to the interface structure 201. In this embodiment, the interface structure 201 is configured to connect with an electronic device, and the cable assembly 200 connects at least two electronic devices to realize signal transmission.
The cable 100 and the cable assembly 200 provided by the embodiment of the invention have the advantages that the composite shielding layer 20 comprising the good conductive graphene film layer 21 and the poor conductive graphene film layer 22 is arranged, the structure is simple, the cable 100 is suitable for large-scale industrial production, the good signal interference resistance is obtained, and meanwhile, the whole softness and the good bending property of the cable 100 are ensured.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the invention, the scope of which is defined by the claims and their equivalents.
Claims (9)
1. A cable, comprising:
a cable core for transmitting signals;
the composite shielding layer is coated outside the cable core; the method comprises the steps of,
the insulating layer is coated outside the composite shielding layer;
the composite shielding layer comprises at least one stacked good conductive graphene film layer and at least one poor conductive graphene film layer.
2. The cable of claim 1, wherein the number of good conductive graphene film layers is one layer greater than the number of bad conductive graphene film layers, and the good conductive graphene film layers and the bad conductive graphene film layers are stacked at intervals.
3. The cable of claim 2, wherein the composite shielding layer is provided as a three-layer composite structure of a well-conductive graphene film layer-a poorly-conductive graphene film layer.
4. A cable according to any one of claims 1-3, wherein the conductivity of the well-conducting graphene film layer is greater than or equal to 1 x 10 6 S/m; and/or the conductivity of the poor conductive graphene film layer is 10S/m-1 x 10 5 S/m。
5. A cable according to any of claims 1-3, wherein the thickness of the poorly conducting graphene film layer and/or the poorly conducting graphene film layer is between 10um and 200um.
6. A cable according to any of claims 1-3, wherein the density of the poorly conducting graphene film layer and/or the poorly conducting graphene film layer is less than or equal to 2g/cm 3 。
7. The cable of claim 1, wherein the cable core includes at least one set of signal transmission set wires, each set of signal transmission set wires including a plurality of signal transmission wires insulated from each other.
8. The cable of claim 1, wherein the insulating layer is made of a thermoplastic insulating material.
9. A cable assembly comprising a cable and an interface structure according to any one of claims 1-8, the cable core being electrically connected to the interface structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311348056.1A CN117238574A (en) | 2023-10-17 | 2023-10-17 | Cable and cable assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311348056.1A CN117238574A (en) | 2023-10-17 | 2023-10-17 | Cable and cable assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117238574A true CN117238574A (en) | 2023-12-15 |
Family
ID=89094801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311348056.1A Pending CN117238574A (en) | 2023-10-17 | 2023-10-17 | Cable and cable assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117238574A (en) |
-
2023
- 2023-10-17 CN CN202311348056.1A patent/CN117238574A/en active Pending
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