CN111681814A - High-frequency data transmission line structure for field manual quick connection and manufacturing method thereof - Google Patents
High-frequency data transmission line structure for field manual quick connection and manufacturing method thereof Download PDFInfo
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- CN111681814A CN111681814A CN202010657037.7A CN202010657037A CN111681814A CN 111681814 A CN111681814 A CN 111681814A CN 202010657037 A CN202010657037 A CN 202010657037A CN 111681814 A CN111681814 A CN 111681814A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/08—Flat or ribbon cables
- H01B7/0823—Parallel wires, incorporated in a flat insulating profile
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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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/22—Sheathing; Armouring; Screening; Applying other protective layers
- H01B13/24—Sheathing; Armouring; Screening; Applying other protective layers by extrusion
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/182—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring comprising synthetic filaments
- H01B7/1825—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring comprising synthetic filaments forming part of a high tensile strength core
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- Insulated Conductors (AREA)
Abstract
The invention discloses a high-frequency data transmission line structure for field manual quick connection and a manufacturing method thereof. The device comprises a reinforced bundled wire filling line, an integrated parallel signal line, a wrapping tape, a ground wire, a shielding layer and a sheath; the structure center is equipped with many strenghthened type bunch silk filling lines, and many strenghthened type bunch silk filling lines are articulated mutually, is equipped with two rings of signal transmission heart yearns around the strenghthened type bunch filling line is outer, and every ring of signal transmission heart yearn encircles after curling by an integral type parallel signal line ring, and two rings of outer cladding of signal transmission heart yearn have the band, and the outer cladding of band has the shielding layer, has still buried the ground wire underground between band and the shielding layer, shielding layer outer cladding sheath. The invention solves the problem of temporary and rapid wiring on site through the unique structural design of the high-frequency data transmission line, and enhances the flexibility and the softness of the cable.
Description
Technical Field
The invention relates to a high-frequency data transmission line structure for field operation, in particular to a high-frequency data transmission line structure for field manual quick connection.
Background
The cores of the high-frequency data transmission lines are numerous, the processing process is precise and complex, the assembled finished products are usually required to be manufactured at a factory end, but the situations that connecting components are required to be connected and connected on site are often encountered in life and workplaces, for example, temporary meeting places, temporary theaters, field offices and other application environments which do not have exact wiring distances in advance, but need to carry out audio-video transmission, and need to carry out temporary wiring and assembly of parts. However, the internal structure of the high-frequency data transmission line is generally formed by grouping according to different wiring functions, and a root core wire needs to be arranged and riveted by combining with a wire position during processing and assembling, so that the high-frequency data transmission line is not suitable for on-site quick wiring, is commonly an assembled finished product with different lengths in the market, and is not beneficial to temporary wiring and wiring in a special environment.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a high-frequency data transmission line structure for field manual quick connection, which enhances the flexibility and softness of a cable.
The technical scheme adopted by the invention is as follows:
a high-frequency data transmission line structure for field manual quick connection comprises:
the device specifically comprises a reinforced bundled wire filling line, an integrated parallel signal line, a wrapping tape, a ground wire, a shielding layer and a sheath; the structure center is equipped with many strenghthened type bunch silk filling lines, and many strenghthened type bunch silk filling lines are articulated mutually, is equipped with two rings of signal transmission heart yearns around the strenghthened type bunch filling line is outer, and every ring of signal transmission heart yearn encircles after curling by an integral type parallel signal line ring, and two rings of outer cladding of signal transmission heart yearn have the band, and the outer cladding of band has the shielding layer, has still buried the ground wire underground between band and the shielding layer, shielding layer outer cladding sheath.
The integrated parallel signal line is formed by integrally coating a plurality of electric core wires by thermoplastic materials, the plurality of electric core wires are arranged side by side at intervals in parallel, all the electric core wires are coated by thermoplastic plastics to form a whole, and the adjacent electric core wires are connected by the coated thermoplastic plastics.
Each signal transmission core wire comprises an inner conductor positioned in the center and an insulating layer coated outside the inner conductor.
The integrated parallel signal wire comprises a plurality of electric core wires, a tensile anti-dragging wire and an outer sheath, wherein the electric core wires and the tensile anti-dragging wire are uniformly distributed and arranged in the flat in-line outer sheath in a straight line shape, and the outer sheath is used for coating and packaging the electric core wires and the tensile anti-dragging wire; the inner part of the outer sheath is provided with at least three tensile anti-drag lines which are arranged in parallel at intervals along the in-line direction, and the tensile anti-drag lines are made of insulating materials coated outside stranded soft steel wires; a plurality of electric core wires are arranged between every two anti-pulling wires along the tensile strength, and the electric core wires are tightly and uniformly distributed along the linear direction; the outer sheath is made of thermoplastic plastics of polyurethane materials.
Each reinforced type bundle silk filling line is formed by a plurality of strands of cotton threads in parallel.
The wrapping tape is formed by wrapping two circles of signal transmission core wires with aluminum foil.
The shielding layer is formed by weaving metal wires.
Secondly, a manufacturing method of the high-frequency data transmission line structure comprises the following steps:
1) preparing a reinforced bundle wire filling line:
2) preparing an integrated parallel signal wire, and surrounding two circles of the integrated parallel signal wire outside the reinforced bundle wire filling wire;
3) and the two circles of signal transmission core wires are wrapped by aluminum foil to form a wrapping tape, a ground wire is arranged outside the wrapping tape, then the outer periphery of the wrapping tape is wrapped by a shielding layer woven by metal wires, and finally the wrapping tape is extruded in the sheath.
The 2) is specifically as follows:
2.1) extruding a signal transmission core wire doubling structure: arranging all the cell lines in parallel, and adopting a thermoplastic material to coat the cell lines by a one-step extrusion process to produce an integrated parallel signal line, wherein all the cell lines are positioned on the same straight line;
2.2) discontinuous branching of the integrated parallel signal wires: adopting a specific branching process to perform discontinuous separation: the integrated parallel signal wire is alternately divided into a parallel line segment and a separated line segment along the long direction at a fixed length, the length of the parallel line segment is the same as that of the separated line segment along the long direction, the integrated parallel signal wire is kept in the original state on each parallel line segment, the integrated parallel signal wire is used for cutting off adjacent electric core wires on each separated line segment by a tool, and a thermoplastic material is cut off to form a strip-shaped crack along the long direction, so that a structure with a parallel line segment structure and a separated line segment structure which are alternately arranged is formed on the integrated parallel signal wire;
2.3) crimping and sheath extrusion of the integrated parallel signal wire: the integrated parallel signal wires are curled to be annularly arranged around the reinforced type bundle wire filling wire to form two circles of signal transmission core wires; after the cables are stranded and formed, the outer sheaths of the integrated parallel signal lines are stripped, and then the ports are directly assembled and connected with the parallel plugs in a buckling type matching mode.
The overall appearance of the high-frequency data transmission line structure is a common round and regular high-frequency data transmission cable, but after the sheath is stripped, the original single signal line is converged into a flat cable, and the high-frequency data transmission line structure can be easily assembled in a buckling mode by matching with the connecting component. According to the invention, the integrated parallel signal wires are manufactured, and the field manual annular winding quick connection is arranged in the high-frequency data transmission line structure, so that the problem of temporary and quick wiring on the field is solved through the unique high-frequency data transmission line structure design, and the flexibility and the performances of flexibility, flexibility and the like of the cable are improved.
The invention has the beneficial effects that:
1. the unique structure is as follows: the high-frequency data transmission cable is beneficial to being pulled, used and stored without difference with conventional products by integrally seeing the rounding rule of the high-frequency data transmission cable, but due to the unique design of the integrated parallel signal wires, the parallel signal wires can be directly matched with the connecting assembly to be quickly assembled in a buckling mode after the sheaths are stripped.
2. The characteristics are excellent: thanks to the unique design of the integrated parallel signal wires, the cable-forming electrical performance is still excellent after the integrated parallel signal wires are integrally curled in time, and a conductor with the sectional area of 0.06mm2 can be used for 1080P high-definition image transmission at the longest distance of 15 meters and can pass 2 meters and 5Gbps eye diagram test.
Drawings
Fig. 1 is a structural view of a high frequency data transmission line according to the present invention.
FIG. 2 is an eye diagram test chart of the high frequency data transmission line structure of the present invention.
In the figure: 1. the cable comprises an inner conductor, 2 insulation, 3 reinforced bundling wire filling, 4 integrated parallel signal wires, 5 branching and curling of the parallel signal wires, 6 wrapping bands, 7 ground wires, 8 shielding and 9 sheaths.
Detailed Description
The invention is described in further detail below with reference to the figures and the embodiments.
As shown in fig. 1, the specific implementation includes a reinforced bundled wire filling line 3, an integrated parallel signal line 4, a bundling belt 6, a ground wire 7, a shielding layer 8 and a sheath 9; the structure center is equipped with many strenghthened type bundle silk filling lines 3, and many strenghthened type bundle silk filling lines 3 are articulated mutually, and 3 periphery of strenghthened type bundle silk filling line enclose and are equipped with two circles of signal transmission heart yearns, and every circle of signal transmission heart yearn encircles after 4 annular curls by an integral type parallel signal line and forms, and two circles of outer cladding of signal transmission heart yearn have band 6, and 6 outer cladding of band has shielding layer 8, has still buried ground wire 7 between band 6 and the shielding layer 8 underground, 8 outer cladding sheaths 9 of shielding layer. The ports of the integrated parallel signal line 4 are connected with an external parallel plug in a snap-in type, and the number of the sockets in the parallel plug is the same as that of the ports in the integrated parallel signal line 4.
As shown in fig. 2, the integrated parallel signal line 4 is formed by integrally coating a plurality of electrical core wires with a thermoplastic material, the plurality of electrical core wires are arranged in parallel at intervals, all the electrical core wires are coated with a thermoplastic material to form an integrated body, and adjacent electrical core wires are connected with each other through the coated thermoplastic material. Thus, the electric core wires are connected through the integral transparent thermoplastic plastic in a mechanical coating mode, and the adjacent electric core wires are not required to be adhered through chemical glue or UV light irradiation.
Each signal transmission core comprises an inner conductor 1 positioned at the center and an insulating layer 2 coated outside the inner conductor 1.
The integrated parallel signal wire 4 comprises a plurality of electric core wires, a tensile anti-dragging wire and an outer sheath, wherein the electric core wires and the tensile anti-dragging wire are uniformly distributed and arranged in the flat in-line outer sheath in a straight line shape, and the outer sheath is used for coating and packaging the electric core wires and the tensile anti-dragging wire; the outer sheath is internally provided with at least three tensile anti-drag wires which are arranged in parallel at intervals along the flat linear direction, and the tensile anti-drag wires are made of insulating materials coated outside stranded soft steel wires to form a flat structure; a plurality of electric core wires are arranged between every two anti-pulling wires along the tensile strength, and the electric core wires are tightly and uniformly distributed along the flat linear direction; the outer sheath is made of thermoplastic plastics of polyurethane materials.
Each reinforced type bundle silk filling line 3 is formed by a plurality of strands of cotton threads in parallel.
The wrapping tape 6 is formed by wrapping two circles of signal transmission core wires by aluminum foil. The high-strength wrapping belt is extruded outside, so that two circles of signal transmission core wires are compact, the whole formed cable is compact, and the appearance is round and round.
The shielding layer 8 is formed by weaving metal wires.
The specific implementation manufacturing method of the invention is as follows:
1) preparing a reinforced bundle wire filling line 3:
2) preparing an integrated parallel signal wire 4, and surrounding two circles of the integrated parallel signal wire 4 outside the reinforced bundle wire filling wire 3;
3) a wrapping tape 6 is formed by wrapping two circles of signal transmission core wires with aluminum foil, a ground wire 7 is arranged outside the wrapping tape 6, then a shielding layer 8 woven by metal wires is wrapped around the outside, and finally the wrapping tape is extruded in a sheath 9.
8. The method of forming a high frequency data transmission line structure according to claim 7, wherein:
2) the method specifically comprises the following steps:
2.1) extruding a signal transmission core wire doubling structure: distributing all core wires into two groups integrally, making each group into a circle, arranging all the cell wires in parallel, and adopting a thermoplastic material coating one-step extrusion process to produce an integrated parallel signal wire 4, wherein all the cell wires are positioned on the same straight line;
2.2) discontinuous branching of the integrated parallel signal wire 4: adopting a specific branching process to perform discontinuous separation: the integrated parallel signal wire 4 is alternately divided into a parallel line segment and a separated line segment along the long direction at fixed lengths, the lengths of the parallel line segment and the separated line segment along the long direction are the same and are fixed lengths, the integrated parallel signal wire 4 is kept in an original state on each parallel line segment, the integrated parallel signal wire 4 is used for cutting off adjacent electric core wires on each separated line segment by a tool and cutting off thermoplastic materials to form a strip-shaped crack along the long direction, so that a structure with a parallel line segment structure and a separated line segment structure which are alternately arranged is formed on the integrated parallel signal wire 4; in the specific implementation, an intermittent gear jig can be adopted to perform intermittent separation on the parallel signal wires. Therefore, the special flat cable branching structure can be used for being matched with the connecting component to quickly carry out buckle type assembly, and the branching structure is used for ensuring the bending property and flexibility of a final cable finished product after the parallel signal wires are curled.
The fixed length in a specific implementation may be set to 10 cm.
2.3) crimping and sheath extrusion of the integrated parallel signal wire 4: the integrated parallel signal lines 4 are curled to be annularly arranged around the reinforced type bundle wire filling line 3, and in specific implementation, the discontinuously separated parallel signal lines can be gradually curled through a bell-mouth-shaped jig to form two circles of signal transmission core wires; the branching and curling 5 of the parallel signal wires are formed, the finished product is still a regular annular high-frequency data transmission cable, after the cable is stranded, the outer sheath of the integrated parallel signal wire 4 is peeled off, and then the ports are directly assembled and connected with the parallel plugs in a snap fit mode.
The conventional high-frequency data transmission line is usually temporarily wired, and the technical problem that flexible wire taking cannot be realized during temporary wiring exists, but the bending property and flexibility of the cable can be enhanced by the intermittent separation of the integrated parallel signal wires 4, and the required electric core wires can be led out after the separated wire segments are connected with the parallel plugs.
The above description is only one embodiment of the present invention, and not intended to limit the scope of the invention, and all equivalent changes or modifications made by the constructions, features, and principles described in the claims of the present invention should be included in the claims of the present invention.
Claims (9)
1. The utility model provides a high frequency data transmission line structure for on-spot manual quick connect which characterized in that: the device comprises a reinforced type bundled wire filling line (3), an integrated parallel signal line (4), a wrapping tape (6), a ground wire (7), a shielding layer (8) and a sheath (9); the structure center is equipped with many strenghthened type bundle silk filling lines (3), many strenghthened type bundle silk filling lines (3) are articulated mutually, strenghthened type bundle silk filling line (3) periphery is enclosed and is equipped with two rings of signal transmission heart yearns, every ring of signal transmission heart yearn is formed by encircleing after signal line (4) annular curls by an integral type and arranges, two rings of signal transmission heart yearn outer cladding have band (6), band (6) outer cladding has shielding layer (8), ground wire (7) have still been buried underground between band (6) and shielding layer (8), shielding layer (8) outer cladding sheath (9).
2. The high-frequency data transmission line structure capable of being manually and quickly connected in field according to claim 1, characterized in that: the integrated parallel signal line (4) is formed by integrally coating a plurality of electric core wires by thermoplastic materials, a plurality of electric core wires are arranged side by side at intervals in parallel, all the electric core wires are coated by thermoplastic plastics to form a whole, and the adjacent electric core wires are connected by the coated thermoplastic plastics.
3. The high-frequency data transmission line structure capable of being manually and quickly connected in field according to claim 1, characterized in that: each signal transmission core wire comprises an inner conductor (1) positioned in the center and an insulating layer (2) coated outside the inner conductor (1).
4. The high-frequency data transmission line structure capable of being manually and quickly connected in field according to claim 1, characterized in that: the integrated parallel signal wire (4) comprises a plurality of electric core wires, a tensile anti-dragging wire and an outer sheath, wherein the electric core wires and the tensile anti-dragging wire are uniformly distributed and arranged in the flat in-line outer sheath in a straight line shape, and the outer sheath is used for coating and packaging the electric core wires and the tensile anti-dragging wire; the inner part of the outer sheath is provided with at least three tensile anti-drag lines which are arranged in parallel at intervals along the in-line direction, and the tensile anti-drag lines are made of insulating materials coated outside stranded soft steel wires; a plurality of electric core wires are arranged between every two anti-pulling wires along the tensile strength, and the electric core wires are tightly and uniformly distributed along the linear direction; the outer sheath is made of thermoplastic plastics of polyurethane materials.
5. A high frequency data transmission line structure for field manual quick connect as claimed in claim 1 wherein: each reinforced type bundle silk filling line (3) is formed by a plurality of strands of cotton threads in parallel.
6. A high frequency data transmission line structure for field manual quick connect as claimed in claim 1 wherein: the wrapping tape (6) is formed by wrapping two circles of signal transmission core wires with aluminum foil.
7. A high frequency data transmission line structure for field manual quick connect as claimed in claim 1 wherein: the shielding layer (8) is formed by weaving metal wires.
8. The manufacturing method applied to the high-frequency data transmission line structure of any one of claims 1 to 7, characterized in that: the method comprises the following steps:
1) preparing a reinforced bundle wire filling line (3):
2) preparing an integrated parallel signal wire (4), and surrounding two circles of integrated parallel signal wires (4) outside the reinforced type bundle wire filling wire (3);
3) aluminum foil is adopted to cover two circles of signal transmission core wires to form a wrapping tape (6), a ground wire (7) is placed outside the wrapping tape (6), then a shielding layer (8) woven by metal wires is adopted to cover the periphery of the wrapping tape, and finally the wrapping tape is extruded in a sheath (9).
9. The method of manufacturing a high frequency data transmission line structure according to claim 8, wherein:
the 2) is specifically as follows:
2.1) extruding a signal transmission core wire doubling structure: all the cell lines are arranged in parallel and are produced into an integrated parallel signal line (4) by adopting a thermoplastic material coating one-step extrusion process, and all the cell lines are positioned on the same straight line;
2.2) the discontinuous lines of the integrated parallel signal lines (4): adopting a specific branching process to perform discontinuous separation: the integrated parallel signal wire (4) is alternately divided into a parallel line segment and a separated line segment along the long direction at a fixed length, the length of the parallel line segment and the length of the separated line segment along the long direction are the same, the integrated parallel signal wire (4) is kept in an original state on each parallel line segment, the integrated parallel signal wire (4) divides adjacent electric core wires on each separated line segment by a tool, and a thermoplastic material is cut to form a strip-shaped crack along the long direction, so that a structure with a parallel line segment structure and a separated line segment structure which are alternately arranged is formed on the integrated parallel signal wire (4);
2.3) crimping and sheath extrusion of the integrated parallel signal wire (4): the integrated parallel signal wires (4) are curled to be annularly arranged around the reinforced type bundle wire filling wire (3) to form two circles of signal transmission core wires; after the cables are stranded and formed, the outer sheaths of the integrated parallel signal lines (4) are stripped, and then the ports are directly assembled and connected with the parallel plugs in a buckling type matching mode.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010657037.7A CN111681814B (en) | 2020-07-09 | 2020-07-09 | High-frequency data transmission line structure for field manual quick connection and manufacturing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010657037.7A CN111681814B (en) | 2020-07-09 | 2020-07-09 | High-frequency data transmission line structure for field manual quick connection and manufacturing method thereof |
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| CN111681814A true CN111681814A (en) | 2020-09-18 |
| CN111681814B CN111681814B (en) | 2021-11-05 |
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| CN202258406U (en) * | 2011-08-17 | 2012-05-30 | 何少敦 | Intermittently adhered power supply flat cable |
| CN203444867U (en) * | 2013-07-23 | 2014-02-19 | 江苏亨通线缆科技有限公司 | Communication cable with aramid fiber reinforcement core |
| DE102013015545A1 (en) * | 2013-09-18 | 2014-07-24 | Daimler Ag | Quick coupling for connecting hose line surrounding electrical line, and another hose line in hybrid spacer, has fitting arranged with radially outward pointing pin such that pin is introduced into longitudinal slot |
| CN104347162A (en) * | 2013-08-06 | 2015-02-11 | 住友电气工业株式会社 | Flat cable and method for manufacturing same |
| CN206628291U (en) * | 2016-12-14 | 2017-11-10 | 大连德昌线缆有限公司 | A kind of shield type multi-in-line |
| CN208460479U (en) * | 2018-08-01 | 2019-02-01 | 广东吉青电缆实业有限公司 | A kind of digital communication multicore cable |
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2020
- 2020-07-09 CN CN202010657037.7A patent/CN111681814B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202258406U (en) * | 2011-08-17 | 2012-05-30 | 何少敦 | Intermittently adhered power supply flat cable |
| CN203444867U (en) * | 2013-07-23 | 2014-02-19 | 江苏亨通线缆科技有限公司 | Communication cable with aramid fiber reinforcement core |
| CN104347162A (en) * | 2013-08-06 | 2015-02-11 | 住友电气工业株式会社 | Flat cable and method for manufacturing same |
| DE102013015545A1 (en) * | 2013-09-18 | 2014-07-24 | Daimler Ag | Quick coupling for connecting hose line surrounding electrical line, and another hose line in hybrid spacer, has fitting arranged with radially outward pointing pin such that pin is introduced into longitudinal slot |
| CN206628291U (en) * | 2016-12-14 | 2017-11-10 | 大连德昌线缆有限公司 | A kind of shield type multi-in-line |
| CN208460479U (en) * | 2018-08-01 | 2019-02-01 | 广东吉青电缆实业有限公司 | A kind of digital communication multicore cable |
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| CN111681814B (en) | 2021-11-05 |
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Inventor after: Shi Lei Inventor after: Lu Zhu Inventor after: Shao Zhikang Inventor after: Liu Liang Inventor after: Zhu Hangzhong Inventor after: Gu Jiyong Inventor before: Shi Lei Inventor before: Shao Zhikang Inventor before: Lu Zhu Inventor before: Gu Jiyong Inventor before: Liu Liang Inventor before: Zhu Hangzhong |
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