CN212061936U - High-fidelity overspeed transmission education robot cable - Google Patents
High-fidelity overspeed transmission education robot cable Download PDFInfo
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- CN212061936U CN212061936U CN202021054430.9U CN202021054430U CN212061936U CN 212061936 U CN212061936 U CN 212061936U CN 202021054430 U CN202021054430 U CN 202021054430U CN 212061936 U CN212061936 U CN 212061936U
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Abstract
The utility model provides a high-fidelity overspeed transmission's education robot cable, its includes cable core, total shielding layer, well by waterproof layer, the sheath that sets gradually from inside to outside, the cable core includes that 2 USB three shield differential signal lines, the electrically conductive PE analog signal line of USB, USB data signal line, power cord, 5 HDMI three shield signal lines, HDMI optic fibre signal lines in the partition body and separate the internal, total shielding layer includes the three-layer shielding layer to cover in proper order in the outside of cable core. The advantages are that: the separating bodies are arranged for full separation, transmission among the signal lines is not affected mutually, and perfect transmission of overspeed boundless audio and video signals is guaranteed; set up the three-layer shielding layer, further strengthened high-fidelity signal transmission effect, by the waterproof layer in the setting, stop in indoor or outdoor artificial or natural water infiltration problem and specific environment's dual influence.
Description
Technical Field
The utility model relates to a cable, concretely relates to education robot cable of high-fidelity overspeed transmission.
Background
With the continuous increase of the global market scale and the sales volume of the artificial intelligent robot, the current education service robot has the increasing speed in the domestic and foreign markets, the total sales volume reaches 900 thousands of robots, and the total sales volume occupies about 70 hundred million dollar market space. In 2018-2020, the sales volume of the global education robot can reach more than 30% in average and continuously increase. And the domestic education robot reaches 20 percent of the global market scale, the total investment amount reaches 694 hundred million yuan, and the development prospect is very considerable.
Currently, most educational robots are equipped with audio and video cables of 2 main structures: the 1 st type is formed by 1 local area super 5 type network line +2 core 24V power line, and the structure is very simple. The 2 nd type is formed by 1 USB3.0 high-frequency wire and 1 UL2468 electronic wire.
As the existing cable structure transmission technology of the current educational robot, the audio and video transmission effects of the two structures are imperfect, and the transmission speed is low in performance.
SUMMERY OF THE UTILITY MODEL
In order to overcome the not enough of background art, the utility model provides a high-fidelity overspeed transmission's educational robot cable.
The utility model discloses the technical scheme who adopts: an educational robot cable for high fidelity overspeed transmission, comprising
The cable core comprises a separator, 2 USB three-shielded differential signal lines, a USB conductive PE analog signal line, a USB data signal line, a power line, 5 HDMI three-shielded signal lines and an HDMI optical fiber signal line, wherein the 2 USB three-shielded differential signal lines, the USB conductive PE analog signal line, the USB data signal line, the power line, the 5 HDMI three-shielded signal lines and the HDMI optical fiber signal line are arranged in;
the total shielding layer comprises three shielding layers and sequentially covers the outer side of the cable core;
the middle waterproof layer covers the outer side of the total shielding layer;
the sheath is sleeved on the outer side of the waterproof layer.
The whole separating body is annular, the separating body comprises an outer ring and an inner ring, and 8 circumferentially and uniformly distributed separating frameworks are connected between the outer ring and the inner ring to form 8 fan-shaped channels;
the three shielded differential signal lines of 2 USB, three shielded signal lines of 5 HDMI, HDMI optic fibre signal line set up respectively in 8 fan-shaped passageways, the setting of USB data signal line is intra-annular including, electrically conductive PE analog signal line of USB sets up at fan-shaped passageway and mutual interval with the power cord setting.
The USB three-shielding differential signal line comprises
2 USB differential signal line core wires, wherein the conductors of the USB differential signal line core wires adopt a single crystal silver wire with a center complex twisted;
1 USB differential signal line ground wire;
the first USB shielding layer adopts a PTFE film wrapping tape and is wrapped outside the 2 USB differential signal line core wires and the USB differential signal line ground wire;
the second USB shielding layer adopts an aluminum foil mylar tape and is coated on the outer side of the first USB shielding layer,
and the third USB shielding layer adopts flat silver-plated copper foil wires and is woven and coated on the outer side of the second USB shielding layer.
The USB conductive PE analog signal line comprises
2 USB analog signal line core wires;
the insulating layer is arranged in the USB analog signal line, is made of a semi-conductive PE material and covers the outer sides of the 2 USB analog signal line core wires.
The USB data signal line comprises
9 USB data signal line core wires;
the first data shielding layer adopts a PTFE film wrapping tape and is wrapped outside the 9 USB data signal line core wires;
a second data shielding layer which adopts an aluminum foil mylar tape and is coated on the outer side of the first data shielding layer,
and the third data shielding layer is a flat silver-plated copper foil wire and is woven and coated on the outer side of the second data shielding layer.
The power line comprises
The power line conductor adopts a fine stranded tinned copper wire;
and the power line insulating layer is made of TPEE insulating material and covers the outer side of the power line conductor.
The HDMI three-shielded signal line comprises
2 HDMI differential signal line core wires, the conductor of which adopts a center complex twisted single crystal silver wire;
1 HDMI differential signal line ground wire;
the first HDMI shielding layer is wrapped outside the 2 HDMI differential signal line core wires and the HDMI differential signal line ground wires by PTFE (polytetrafluoroethylene) film wrapping belts;
the second HDMI shielding layer adopts aluminum foil mylar wrapping tape and is wrapped outside the first HDMI shielding layer,
and the third HDMI shielding layer is made of flat silver-plated copper foil wires and is woven and coated on the outer side of the second HDMI shielding layer.
The HDMI optical fiber signal line comprises
4 optical fiber core wires;
the filling layer adopts an anti-elastic wire and is filled and coated on the outer sides of the 4 optical fiber core wires and in the gaps;
and the transmission middle layer is made of HDPE material and covers the outer side of the filling layer.
The total shielding layer comprises
The first total shielding layer adopts a PTFE film wrapping tape and wraps the outer side of the separating body;
the second total shielding layer adopts an aluminum foil mylar wrapping tape and is wrapped outside the first total shielding layer;
and the third total shielding layer is formed by combining and weaving an anti-bullet wire, a tinned copper wire and a flat silver-plated copper foil wire and is coated on the outer side of the second total shielding layer.
The waterproof layer of the middle quilt is made of LDPE materials, and the sheath is made of TPU materials.
The utility model has the advantages that: by adopting the scheme, the separating bodies are arranged for full separation, transmission among the signal lines is not influenced mutually, and perfect transmission of overspeed borderless audio and video signals is ensured; set up the three-layer shielding layer, further strengthened high-fidelity signal transmission effect, by the waterproof layer in the setting, stop in indoor or outdoor artificial or natural water infiltration problem and specific environment's dual influence.
Drawings
Fig. 1 is the utility model discloses the structural schematic diagram of high-fidelity overspeed transmission's educational robot cable.
Figure 2 is the embodiment of the utility model provides a structural schematic of cable core.
Fig. 3 is a schematic structural diagram of a separator according to an embodiment of the present invention.
Fig. 4 is a schematic structural diagram of a USB triple-shielded differential signal line according to an embodiment of the present invention.
Fig. 5 is a schematic structural diagram of a USB conductive PE analog signal line according to an embodiment of the present invention.
Fig. 6 is a schematic structural diagram of a USB data signal line according to an embodiment of the present invention.
Fig. 7 is a schematic structural diagram of a power line according to an embodiment of the present invention.
Fig. 8 is a schematic structural diagram of an HDMI three-shielded signal line according to an embodiment of the present invention.
Fig. 9 is a schematic structural diagram of an HDMI optical fiber signal line according to an embodiment of the present invention.
Fig. 10 is a schematic structural diagram of a total shielding layer according to an embodiment of the present invention.
Detailed Description
The embodiments of the present invention will be further explained with reference to the accompanying drawings:
as shown in fig. 1, the high-fidelity overspeed transmission educational robot cable comprises a cable core, a total shielding layer 8, a middle waterproof layer 9 and a sheath 10 which are sequentially arranged from inside to outside.
As shown in fig. 2, the cable core includes a separator 1, and 2 USB triple-shielded differential signal lines 2, USB conductive PE analog signal lines 3, USB data signal lines 4, power lines 5, 5 HDMI triple-shielded signal lines 6, and HDMI optical fiber signal lines 7 in the separator 1.
As shown in fig. 3, the separator 1 is annular, the separator 1 includes an outer ring 11 and an inner ring 12, and 8 circumferentially and uniformly distributed separation frames 13 are connected between the outer ring 11 and the inner ring 12 to form 8 fan-shaped passages 14.
As shown in fig. 4, the USB three-shielded differential signal line 2 includes 2 USB differential signal line cores 21, 1 USB differential signal line ground 22, and a first USB shielding layer 23, a second USB shielding layer 24, and a third USB shielding layer 25 that are sequentially disposed outward.
The USB differential signal wire core wire 21 adopts a central complex-twisted single crystal silver wire as a conductor, and is coated with an ETFE high-temperature fluoroplastic insulating material, and adopts a 28AWG central complex-twisted single crystal silver wire, so that the transmission speed is ultra-strong, and the electric conductivity is extremely high.
The USB differential signal line ground 22 is a tinned copper wire.
The first USB shielding layer 23 is wrapped by PTFE (polytetrafluoroethylene) film wrapping tapes and is wrapped outside the 2 USB differential signal line core wires 21 and the USB differential signal line ground wire 22, the second USB shielding layer 24 is wrapped by aluminum foil wrapping tapes and is wrapped outside the first USB shielding layer 23, and the third USB shielding layer 25 is wrapped by flat silver-plated copper foil wires and is woven outside the second USB shielding layer 24, so that a three-layer shielding effect is formed, interference is reduced, and a high-fidelity signal transmission effect is enhanced.
As shown in fig. 5, the USB conductive PE analog signal line 3 includes 2 USB analog signal line core lines 31 and a USB analog signal line coated outside thereof by an insulating layer 32.
The core wire 31 of the USB analog signal wire adopts a silver-plated stranded copper wire as a conductor and is coated with an ETFE high-temperature fluoroplastic insulating material, and the insulating layer 32 of the USB analog signal wire adopts a semiconductive PE material.
As shown in fig. 6, the USB data signal line 4 includes 9 USB data signal line core lines 41, and a first data shielding layer 42, a second data shielding layer 43, and a third data shielding layer 44 that are sequentially disposed outward.
The core wire 41 of the USB data signal wire adopts a silver-plated stranded copper wire as a conductor and is coated with a TPEE high-elasticity insulating material, so that the USB data signal wire has the advantages of super-good processing performance, super-long service life, high strength, good flexibility, better dynamic mechanical property, extremely high tensile strength, excellent fatigue resistance, heat resistance, excellent creep resistance, excellent low-temperature resistance, excellent oil resistance, excellent aging resistance and good mechanical property.
First data shielding layer 42 adopts PTFE membrane band to the cladding is in the outside of 9 USB data signal line heart yearns 41, and second data shielding layer 43 adopts aluminium foil wheat to draw the band, and the cladding is in the outside of first data shielding layer 42, and third data shielding layer 44 adopts flat silver-plated copper foil silk, and weaves the cladding in the outside of second data shielding layer 43, forms three-layer shielding effect, reduces the interference, has strengthened high-fidelity signal transmission effect.
As shown in fig. 7, the power supply line 5 includes a power supply line conductor 51 and a power supply line insulating layer 52 covering an outer side of the power supply line conductor 51.
The power line conductor 51 is made of a fine twisted tinned copper wire, and the power line insulating layer 52 is made of a TPEE insulating material and covers the outer side of the power line conductor 51.
As shown in fig. 8, the HDMI three-shielded signal line 6 includes 2 HDMI differential signal line core lines 61, 1 HDMI differential signal line ground line 62, and a first HDMI shield layer 63, a second HDMI shield layer 64, and a third HDMI shield layer 65 which are sequentially disposed outward.
The HDMI differential signal line core wire 61 adopts a central multiple-stranded single crystal silver wire as a conductor, and is coated with an ETFE high-temperature fluoroplastic insulating material, and a 28AWG central multiple-stranded single crystal silver wire is adopted, so that the transmission speed is ultra-strong, and the electric conductivity is extremely high.
The HDMI differential signal line ground wire 62 is a tinned copper wire.
First HDMI shielding layer 63 adopts PTFE membrane band to the cladding is in the outside of 2 HDMI differential signal line heart yearns 61 and HDMI differential signal line ground wires 62, second HDMI shielding layer 64 adopts aluminium foil wheat to draw the band to the cladding is in the outside of first HDMI shielding layer 63, third HDMI shielding layer 65 adopts flat silver-plated copper foil silk to weave the cladding in the outside of second HDMI shielding layer 64, form three-layer shielding effect, reduce and disturb, strengthened high-fidelity signal transmission effect.
As shown in fig. 9, the HDMI optical fiber signal line 7 includes 4 optical fiber core wires 71, a filling layer 72 filling and covering the outer sides of the 4 optical fiber core wires 71 and gaps, and a transmission middle layer 73 covering the outer sides of the filling layer 72.
The optical fiber core 71 adopts an OM3/150 multimode optical fiber core, the core diameter of the core is =62.5 μm/125 μm, and the core is made of a double-layer concentric cylinder fiber material with a small cross-sectional area made of quartz glass or plastic and is used for transmitting optical conduction signals. The main transmission principle is that a fine optical fiber core is generally packaged in a plastic sheath through total reflection of light, so that the fine optical fiber core is prevented from being broken in working bending. Typically, one end of the fiber transmits light pulses to the fiber using a light emitting diode LED or 1 beam of laser light, and the other end of the fiber receives light pulses detected using a photosensor.
White high-density polyethylene (HDPE) material is adopted outside the OM3/150 multimode fiber core, the high-density polyethylene (HDPE) material has excellent electrical performance, high insulation resistance and electric strength resistance, small dielectric constant and dielectric loss tangent value in a high-frequency transmission range, is basically free from frequency change, and is an ideal communication transmission medium; the mechanical property is good, and the flexibility and the compatibility are good; the heat aging resistance, the low-temperature cold resistance and the chemical stability are good; the water resistance is good, the moisture absorption rate is low, and the insulation resistance is not reduced when the paint is soaked in water; good processing technique performance, easy melting and plasticizing and difficult decomposition.
The filling layer 72 is made of 1500D bulletproof silk bundles and PTFE wrapping bands.
The middle layer 73 is made of High Density Polyethylene (HDPE)
As shown in fig. 2, the 2 USB triple-shielded differential signal lines 2, the 5 HDMI triple-shielded signal lines 6, and the HDMI optical fiber signal line 7 are respectively disposed in 8 sector channels 14, the USB data signal line 4 is disposed in the inner ring 12, and the USB conductive PE analog signal line 3 and the power line 5 are disposed in the sector channels 14 and spaced apart from each other.
Adopt above-mentioned cable core structure, have following advantage: 1. the conductors of the 2 pairs of USB three-shielding differential signal lines 2 and the 5 pairs of HDMI three-shielding signal lines 6 adopt 28AWG center complex twisted single crystal silver lines, the transmission speed is super strong, the electric conductivity is extremely high, simultaneously, the conductors of the two conductors reach extreme balance, the transmission effect is fully matched, no matter from the conductor twisting process or the conductor material, an optimal balance transmission is sought in the communication signal transmission, and the electric length of the cable signal line pair simultaneously reaches the consistency of natural integration;
2. setting separating bodies for full separation, wherein transmission of each signal line is not influenced mutually; meanwhile, a single signal is transmitted, and conductor attenuation and shielding attenuation between high-speed signal transmission line pairs are controlled in an independent space, so that near-end crosstalk and attenuation signal mutual interference between the signal line pairs and a signal wire core are effectively avoided, the delay effect of the signal line pairs is naturally balanced, and perfect transmission of overspeed borderless audio and video signals is ensured;
3. the HDMI optical fiber signal wire 7 adopts multimode light for transmission, and signals are not interfered by any RFI/EMI outside;
4. each signal line pair adopts a three-shielding structure, so that the high-fidelity signal transmission effect is enhanced, and the cable is ultra-strong in water resistance, oil resistance and wear resistance, so that the double influences of the problem of artificial or natural water permeation indoors or outdoors and the specific environment are completely eradicated.
As shown in fig. 10, the total shielding layer 8 includes a first total shielding layer 81, a second total shielding layer 82, and a third total shielding layer 83 that are sequentially disposed from inside to outside, and three shielding layers are disposed, so that the high-fidelity signal transmission effect is further enhanced.
The first total shielding layer 81 is wrapped by a PTFE film wrapping tape and is wrapped outside the separator 1, so that the first total shielding layer has good chemical resistance, good non-adhesion property, excellent insulating property, dielectric constant of 2.6, good toughness and excellent mechanical properties of low friction coefficient, and plays a role in shielding and isolating electromagnetic waves and radio wave interference in a high-frequency transmission process.
The second total shielding layer 82 is wrapped by aluminum foil mylar wrapping tape and is wrapped outside the first total shielding layer 81, so that electromagnetic wave and radio wave interference can be sufficiently isolated.
The third total shielding layer 83 is formed by combining and weaving an anti-bullet wire, a tinned copper wire and a flat silvered copper wire and is wrapped outside the second total shielding layer 82, the softness and the bending and swinging performance of weaving are greatly improved by the combined and woven layer, and meanwhile, the interference of external electromagnetic waves, radiation sources of electrical equipment and radio waves is effectively isolated.
In addition, the waterproof layer 9 is made of LDPE material, and has super-strong impermeability, good waterproof performance, high and low temperature resistance, aging resistance, and good tensile strength and elasticity.
The sheath 10 is made of TPU material, and has excellent high tension and high tensile force, high strength and toughness, tear resistance, extremely strong bending resistance and high environmental protection. But also has wear resistance, cold resistance, oil resistance, water resistance, aging resistance, weather resistance and mould resistance; meanwhile, the fabric has the functions of wind prevention, cold prevention, warm keeping, ultraviolet resistance and energy release. And secondly, the mechanical strength is high, the bearing capacity is strong, the impact resistance and the shock absorption performance are outstanding, and the processability is good.
The overall shape and appearance design simplifies the wiring difficulty inside the machine and the effectiveness of subsequent welding processing and plugging of the connector.
In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.
The skilled person should understand that: although the present invention has been described in accordance with the above embodiments, the inventive concept is not limited to this embodiment, and any modification of the inventive concept will be included in the scope of the patent claims.
Claims (10)
1. The utility model provides a high-fidelity overspeed transmission's educational robot cable which characterized in that: comprises that
The cable core comprises a separator (1), 2 USB three-shielded differential signal lines (2) in the separator (1), a USB conductive PE analog signal line (3), a USB data signal line (4), a power line (5), 5 HDMI three-shielded signal lines (6) and an HDMI optical fiber signal line (7);
the total shielding layer (8) comprises three shielding layers and sequentially covers the outer side of the cable core;
a middle waterproof layer (9) which covers the outer side of the total shielding layer (8);
and the sheath (10) is sleeved on the outer side of the waterproof layer (9).
2. A high fidelity overspeed transmitting educational robot cable according to claim 1, wherein: the integral separator (1) is annular, the separator (1) comprises an outer ring (11) and an inner ring (12), and 8 circumferentially and uniformly distributed separation frameworks (13) are connected between the outer ring (11) and the inner ring (12) to form 8 fan-shaped channels (14);
three shielded differential signal line (2), the three shielded signal line (6) of 5 HDMI of 2 USB, HDMI optical signal line (7) set up respectively in 8 fan-shaped passageway (14), USB data signal line (4) set up in inner ring (12), electrically conductive PE analog signal line of USB (3) and power cord (5) set up in fan-shaped passageway (14) and mutual interval setting.
3. A high fidelity overspeed transmitting educational robot cable according to claim 1, wherein: the USB three-shielding differential signal line (2) comprises
2 USB differential signal line core wires (21), wherein the conductors of the USB differential signal line core wires adopt a single crystal silver wire with a complex twisted center;
1 USB differential signal line ground wire (22);
the first USB shielding layer (23) adopts a PTFE membrane wrapping tape and is wrapped on the outer sides of the 2 USB differential signal line core wires (21) and the USB differential signal line ground wire (22);
a second USB shielding layer (24) which adopts an aluminum foil mylar tape and is coated on the outer side of the first USB shielding layer (23),
and the third USB shielding layer (25) adopts flat silver-plated copper foil wires and is woven and coated on the outer side of the second USB shielding layer (24).
4. A high fidelity overspeed transmitting educational robot cable according to claim 1, wherein: the USB conductive PE analog signal line (3) comprises
2 USB analog signal line core wires (31);
the USB analog signal line is internally provided with an insulating layer (32) which is made of a semi-conductive PE material and covers the outer sides of 2 USB analog signal line core wires (31).
5. A high fidelity overspeed transmitting educational robot cable according to claim 1, wherein: the USB data signal line (4) comprises
9 USB data signal line core wires (41);
the first data shielding layer (42) adopts a PTFE membrane wrapping tape and is wrapped outside the 9 USB data signal line core wires (41);
a second data shielding layer (43) which adopts an aluminum foil mylar tape and is coated on the outer side of the first data shielding layer (42),
and the third data shielding layer (44) is a flat silver-plated copper foil wire and is woven and coated on the outer side of the second data shielding layer (43).
6. A high fidelity overspeed transmitting educational robot cable according to claim 1, wherein: the power line (5) comprises
A power supply line conductor (51) which uses a finely stranded tinned copper wire;
and the power line insulating layer (52) is made of TPEE insulating material and covers the outer side of the power line conductor (51).
7. A high fidelity overspeed transmitting educational robot cable according to claim 1, wherein: the HDMI three-shield signal line (6) comprises
2 HDMI differential signal line core wires (61), wherein the conductors of the HDMI differential signal line core wires adopt a center compound twisted single crystal silver wire;
1 HDMI differential signal line ground (62);
the first HDMI shielding layer (63) is wrapped by PTFE (polytetrafluoroethylene) film wrapping tapes and covers the outer sides of the 2 HDMI differential signal line core wires (61) and the HDMI differential signal line ground wires (62);
a second HDMI shielding layer (64) which adopts an aluminum foil mylar wrapping tape and is wrapped outside the first HDMI shielding layer (63),
and the third HDMI shielding layer (65) adopts flat silver-plated copper foil wires and is woven and coated on the outer side of the second HDMI shielding layer (64).
8. A high fidelity overspeed transmitting educational robot cable according to claim 1, wherein: the HDMI optical fiber signal line (7) comprises
4 optical fiber cores (71);
a filling layer (72) which is made of an anti-elastic yarn and is filled and coated on the outer sides of the 4 optical fiber core wires (71) and in the gaps;
and the transmission middle layer (73) is made of HDPE material and covers the outer side of the filling layer (72).
9. A high fidelity overspeed transmitting educational robot cable according to claim 1, wherein: the total shielding layer (8) comprises
A first total shielding layer (81) which adopts a PTFE film wrapping tape and is wrapped outside the separating body (1);
the second total shielding layer (82) adopts an aluminum foil mylar wrapping tape and wraps the outer side of the first total shielding layer (81);
and the third total shielding layer (83) is woven by combining an anti-bullet wire, a tinned copper wire and a flat silvered copper wire and is coated on the outer side of the second total shielding layer (82).
10. A high fidelity overspeed transmitting educational robot cable according to claim 1, wherein: the waterproof layer (9) is made of LDPE material, and the sheath (10) is made of TPU material.
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| CN202021054430.9U CN212061936U (en) | 2020-06-10 | 2020-06-10 | High-fidelity overspeed transmission education robot cable |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114822931A (en) * | 2021-01-29 | 2022-07-29 | 华为技术有限公司 | Data transmission cable and electronic system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114822931A (en) * | 2021-01-29 | 2022-07-29 | 华为技术有限公司 | Data transmission cable and electronic system |
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