CN112951506A - Satellite signal cable with multiple speed transmission - Google Patents
Satellite signal cable with multiple speed transmission Download PDFInfo
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- CN112951506A CN112951506A CN202110180312.5A CN202110180312A CN112951506A CN 112951506 A CN112951506 A CN 112951506A CN 202110180312 A CN202110180312 A CN 202110180312A CN 112951506 A CN112951506 A CN 112951506A
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- shielding layer
- twisted pairs
- data line
- satellite signal
- twisted
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B11/00—Communication cables or conductors
- H01B11/02—Cables with twisted pairs or quads
- H01B11/06—Cables with twisted pairs or quads with means for reducing effects of electromagnetic or electrostatic disturbances, e.g. screens
- H01B11/08—Screens specially adapted for reducing cross-talk
Abstract
The invention relates to a satellite signal cable for multi-rate transmission, which comprises a plurality of data wires with different rates, wherein the data wires are arranged in parallel, a sheath is coated outside the data wires, and each data wire comprises at least one group of twisted pairs; in a data line formed by a plurality of groups of twisted pairs, each group of twisted pairs is provided with a first shielding layer, and the plurality of groups of twisted pairs are twisted with each other; and a double-layer shielding layer is also arranged in the data wire formed by the group of twisted pairs. The invention relates to a product, belonging to the technical field of electronic information and relating to a symmetrical cable for shielding a signal transmission line pair. The invention arranges a plurality of groups of data lines with different rates in parallel, so that the cable can meet various transmission requirements, and simultaneously arranges the satellite signal data line and the Ethernet data signal line together to save cost.
Description
Technical Field
The invention relates to the technical field of cables, in particular to a satellite signal cable capable of transmitting at multiple rates.
Background
The market has a mature high-speed signal data transmission line, such as a U/FTP CAT6A data line. The data line adopts a 4-to-8-core line pair shielding structure. The line pair shielding mode is a longitudinal wrapping mode, but the structure design is suitable for products below 1 GHz. Because of the longitudinal wrapping structure, the aluminum foil is fixed without external force after being formed, so that the aluminum foil is released with force after being formed, the joint of the aluminum foil is easy to warp, when the signal frequency reaches more than 1GHz, the wavelength is quite short, so that the gap of the shielding layer joint of the longitudinal wrapping structure can pass through the signal wave with the frequency of more than 1GHz, signal leakage is caused, signal distortion is caused, and the transmission of satellite signals with the bandwidth of 2.15GHz cannot be met in structural design.
Disclosure of Invention
In order to solve the above technical problems, an object of the present invention is to provide a multi-rate transmission satellite signal cable that combines data transmission of ethernet and conversion reception of satellite signals (DVB-S2).
In order to achieve the purpose of the invention, the invention adopts the following technical scheme:
a satellite signal cable for multi-rate transmission comprises a plurality of data lines with different rates, wherein the data lines are arranged in parallel, a sheath is coated outside the data lines, and each data line comprises at least one group of twisted pairs; in a data line formed by a plurality of groups of twisted pairs, each group of twisted pairs is provided with a first shielding layer, and the plurality of groups of twisted pairs are twisted with each other; and a double-layer shielding layer is also arranged in the data wire formed by the group of twisted pairs.
According to a preferable scheme, the data line comprises a high-frequency data line, the high-frequency data line is formed by twisting two first single lines in pairs, a double-layer shielding layer is further arranged in the high-frequency data line, and the double-layer shielding layer comprises a shielding layer A arranged on the periphery of the twisted pair in a dragging mode and a shielding layer B wound on the periphery of the shielding layer A in the same direction in a wrapping mode.
Preferably, the shielding layer A is an aluminum foil, the shielding layer B is a flexible self-adhesive aluminum foil, and the flexible self-adhesive aluminum foil is automatically adhered by a heater to form a closed circular ring.
Preferably, the first element wire includes a first conductor and a first insulator, the first conductor has a diameter of 0.5 to 0.65mm, and the first element wire has an outer diameter of 1.3 to 1.5 mm.
As a preferred scheme, the data line includes ordinary data line, be equipped with three group's twisted pairs in the ordinary data line, every group twisted pair is twisted pair by two second single lines and is formed, and the peripheral first shielding layer that has vertically wrapped up of twisted pair, first shielding layer is the aluminium foil, and three group's twisted pair each other.
Preferably, the second element wire includes a second conductor and a second insulator, the second conductor has a diameter of 0.45 to 0.6mm, and the second element wire has an outer diameter of 1.2 to 1.4 mm.
As a preferred scheme, the first single wire and the second single wire are respectively formed by three-layer co-extrusion of a skin and a foam, and the plurality of data wires are coated by the sheath to form a flat structure.
Preferably, the lay length of the twisted pairs is 20-30mm, and the cabling lay length of the multiple groups of twisted pairs is 90-150 mm.
The invention relates to a product, belonging to the technical field of electronic information and relating to a symmetrical cable for shielding a signal transmission line pair. The invention arranges a plurality of groups of data lines with different rates in parallel, so that the cable can meet various transmission requirements, and simultaneously arranges the satellite signal data line and the common Ethernet data signal line together to save cost.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application.
Fig. 1 is a schematic view of the overall structure of the present invention.
The reference numbers in the figures are: 1. a second conductor; 2. a second insulator; 3. a first shielding layer; 4. a first conductor; 5. a first insulator; 6. a double-layer shielding layer; 7. a sheath.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. 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 application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, elements, and/or combinations thereof, unless the context clearly indicates otherwise.
Further, in the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "a plurality" means two or more unless explicitly defined otherwise.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The invention will be further illustrated with reference to the following examples and drawings:
the multi-rate transmission satellite signal cable shown in fig. 1 comprises a plurality of data lines with different rates, which are arranged in parallel, wherein the plurality of data lines are coated with a sheath 7, and each data line comprises at least one group of twisted pairs; in a data line formed by a plurality of groups of twisted pairs, each group of twisted pairs is provided with a first shielding layer 3, and the plurality of groups of twisted pairs are twisted with each other; a double-layer shielding layer 6 is also arranged in the data wire formed by the group of twisted pairs.
The data line includes the high frequency data line, the high frequency data line is formed by two first single line pair twists, still be equipped with double-deck shielding layer 6 in the high frequency data line, double-deck shielding layer 6 is including dragging the package to set up at the peripheral shielding layer A of twisted pair line and the syntropy around wrapping at the peripheral shielding layer B of shielding layer A. The shielding layer A is an aluminum foil, the shielding layer B is a flexible self-adhesive aluminum foil, and the flexible self-adhesive aluminum foil is automatically adhered through a heater to form a closed circular ring. The first single wire comprises a first conductor 4 and a first insulator 5, the diameter of the first conductor 4 is 0.5-0.65 mm, and the outer diameter of the first single wire is 1.3-1.5 mm.
The data line includes ordinary data line, be equipped with three group's twisted pairs in the ordinary data line, every group twisted pair is twisted pair by two second single lines and is formed, and the peripheral first shielding layer 3 that has vertically wrapped up of twisted pair, first shielding layer 3 is the aluminium foil, and three group's twisted pair each other. The second single line comprises a second conductor 1 and a second insulator 2, the diameter of the second conductor 1 is 0.45-0.6 mm, and the outer diameter of the second single line is 1.2-1.4 mm.
The first single wire and the second single wire are respectively formed by three-layer co-extrusion of a skin and a foam, and the plurality of data wires are coated by the sheath 7 to form a flat structure. The twisting pitch of the twisted pairs is 20-30mm, and the cabling pitch of the multiple groups of twisted pairs is 90-150 mm.
Aiming at the frequency of satellite receiving signals reaching 2.15GHz, in the aluminum foil cladding of the traditional longitudinal cladding mode, the signal wavelength is enough to pass through the joint of the aluminum foil under the longitudinal cladding mode, so that signal leakage is caused, and signal pattern distortion is generated. Therefore, the technical scheme in the application reduces the size of the opening covered by the aluminum foil as much as possible. In the mode of aluminum foil coating, the longitudinal package is changed into the dragging package, so that the structure of the aluminum foil and the twisted pair wires is more attached, and the joint is reduced. Because the longitudinal package is not like the pulling package, the opening direction of the aluminum foil dynamically changes along with the strand length, and 4 pairs of tendencies must interfere with each other when the openings are in the same direction. In order to solve the problem, 3 among the technical scheme of this application adopt the tradition to indulge a packet one shot forming technology to ordinary data line, 1 is fixed to high frequency data line increase the autohesion aluminium foil of one deck syntropy winding behind the package aluminium foil of dragging, through automatic firm closed shielding ring that finally forms the completion that bonds behind the heater, guarantee the perfect transmission of signal. 3 pairs of common data lines are added with 1 pair of high-speed data direct sheaths, and the appearance of the high-speed data direct sheaths is of a special oblate structure.
The defect of traditional data line structural design has decided that it can not accomplish the two-way mission of data transmission and satellite signal switching, and the technical scheme of this application has designed the 3+1 structure according to market demand, provides the optimal solution under the circumstances of guaranteeing transmission performance. The concrete structure is as follows: the single wire structure is in a skin-bubble skin mode, a skin-bubble skin insulation structure of three-layer co-extrusion is adopted, stable core wire structures and optimal transmission performance are guaranteed, a pair of high-frequency data wire cores adopt a 2-core 0.58/1.40 skin-bubble skin three-layer co-extrusion technology, a pair-twisted structure is adopted, and shielding adopts an aluminum foil bale pulling and wrapping double-layer shielding technology; and the core wires of the three pairs of data wires adopt a 6-core 0.53/1.25 skin-bubble skin three-layer co-extrusion technology, are in a twisted structure, and are shielded and still keep the traditional longitudinal wrapping process.
The main transmission performance indexes of the cable of the invention are shown in table 1.
TABLE 1
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean 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 invention. In this specification, the schematic representations of the terms used above do not necessarily refer 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.
Although the embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and not to be construed as limiting the present invention, and those skilled in the art can make changes, modifications, substitutions and alterations to the above embodiments without departing from the principle and spirit of the present invention, and any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention still fall within the technical scope of the present invention.
Claims (8)
1. The satellite signal cable for multi-rate transmission is characterized by comprising a plurality of data lines with different rates, wherein the data lines are arranged in parallel, a sheath (7) is coated outside the data lines, and each data line comprises at least one group of twisted pairs; in a data line formed by a plurality of groups of twisted pairs, each group of twisted pairs is provided with a first shielding layer (3), and the plurality of groups of twisted pairs are twisted with each other; a double-layer shielding layer (6) is also arranged in the data wire formed by the group of twisted pairs.
2. The multi-rate transmission satellite signal cable according to claim 1, wherein the data line comprises a high-frequency data line, the high-frequency data line is formed by twisting two first single lines in pairs, a double-layer shielding layer (6) is further arranged in the high-frequency data line, and the double-layer shielding layer (6) comprises a shielding layer A which is arranged on the periphery of the twisted pair in a dragging mode and a shielding layer B which is wound on the periphery of the shielding layer A in the same direction.
3. The multi-rate transmission satellite signal cable according to claim 2, wherein the shielding layer A is an aluminum foil, the shielding layer B is a flexible self-adhesive aluminum foil, and the flexible self-adhesive aluminum foil is automatically adhered by a heater to form a closed circular ring.
4. The multi-rate transmission satellite signal cable according to claim 2, wherein the first single wire comprises a first conductor (4) and a first insulator (5), the first conductor (4) has a diameter of 0.5-0.65 mm, and the first single wire has an outer diameter of 1.3-1.5 mm.
5. The multi-rate transmission satellite signal cable according to claim 1 or 2, wherein the data line comprises a common data line, three groups of twisted pairs are arranged in the common data line, each group of twisted pairs is formed by two second single-wire twisted pairs, a first shielding layer (3) is longitudinally wrapped on the periphery of each twisted pair, the first shielding layer (3) is an aluminum foil, and the three groups of twisted pairs are twisted with each other.
6. The multi-rate-transmission satellite signal cable according to claim 5, wherein the second single wire comprises a second conductor (1) and a second insulator (2), the diameter of the second conductor (1) is 0.45-0.6 mm, and the outer diameter of the second single wire is 1.2-1.4 mm.
7. The multi-rate transmission satellite signal cable according to claim 5, wherein the first single wire and the second single wire are respectively formed by three-layer co-extrusion of a skin and a skin, and the plurality of data wires are wrapped by the sheath (7) to form a flat structure.
8. The multi-rate satellite signal cable of claim 1, wherein the twisted pairs have a lay length of 20-30mm and the sets of twisted pairs have a cabling lay length of 90-150 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110180312.5A CN112951506A (en) | 2021-02-08 | 2021-02-08 | Satellite signal cable with multiple speed transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110180312.5A CN112951506A (en) | 2021-02-08 | 2021-02-08 | Satellite signal cable with multiple speed transmission |
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| Publication Number | Publication Date |
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| CN112951506A true CN112951506A (en) | 2021-06-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110180312.5A Pending CN112951506A (en) | 2021-02-08 | 2021-02-08 | Satellite signal cable with multiple speed transmission |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205230657U (en) * | 2015-12-08 | 2016-05-11 | 浙江兆龙线缆有限公司 | Eight types of line shielding structure's wire pair shielding body |
| US20170103830A1 (en) * | 2014-04-25 | 2017-04-13 | Leoni Kabel Gmbh | Data cable |
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2021
- 2021-02-08 CN CN202110180312.5A patent/CN112951506A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20170103830A1 (en) * | 2014-04-25 | 2017-04-13 | Leoni Kabel Gmbh | Data cable |
| CN205230657U (en) * | 2015-12-08 | 2016-05-11 | 浙江兆龙线缆有限公司 | Eight types of line shielding structure's wire pair shielding body |
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Application publication date: 20210611 |