CN215220311U

CN215220311U - Anti-interference USB photoelectric composite wire

Info

Publication number: CN215220311U
Application number: CN202121750234.XU
Authority: CN
Inventors: 余军; 王瑶
Original assignee: Suzhou Fuertai Optoelectronic Technology Co ltd
Current assignee: Suzhou Fuertai Optoelectronic Technology Co ltd
Priority date: 2021-07-29
Filing date: 2021-07-29
Publication date: 2021-12-17
Anticipated expiration: 2031-07-29

Abstract

The utility model relates to the technical field of electric wires and cables, in particular to an anti-interference USB photoelectric composite wire, which comprises a composite cable core, an outer aluminum foil layer, a braided shielding layer and an outer sheath; the composite cable core comprises a four-core multimode optical fiber, a data transmission line, a signal feedback line and a power line; the data transmission line comprises two first conductors, a first insulating layer extruded on the first conductors and a first inner aluminum foil layer wrapping the two first insulating layers, wherein a first ground wire is arranged between the first inner aluminum foil layer and the first insulating layer, and the conductive surface of the first inner aluminum foil layer faces inwards and is in contact with the first ground wire; the signal feedback line comprises a second conductor, a second ground wire and a second inner aluminum foil layer wrapping the second conductor and the second ground wire, and the conductive surface of the second inner aluminum foil layer faces inwards and is in contact with the second ground wire. The utility model discloses soft light carries and lays wire easily, and fiber transmission distance is far away, and high frequency transmission attenuates and diminishes, and interference immunity is strong.

Description

Anti-interference USB photoelectric composite wire

Technical Field

The utility model relates to a wire and cable technical field specifically is an anti-interference USB photoelectric composite line.

Background

With the high-speed development of modern communication technology, the bandwidth requirement of the existing signal transmission cable is higher and higher, and in the USB2.0 era, full-speed equipment can reach the bandwidth of 470 Mbps; by the time of USB3.0, the USB has the bandwidth of 5Gbps, and by the time of USB3.1, the signal transmission rate is required to reach 9 Gbps. But the wire has a limited length in practical use due to the severe attenuation of the signal with the transmission distance.

In the traditional USB3.1 cable production process, signal feedback lines are all in a coaxial line structure, or a structure that two core lines are twisted in pairs or are coated in parallel, and then aluminum foil shielding and Mylar coating processes with inward conductive surfaces are sequentially coated. The production process of the coaxial or two-core wire process is complicated, the signal transmission line is easily damaged in a complicated process to influence the transmission of signals, and the data transmission line adjacent to the wire inside the wire is not provided with a ground wire and an aluminum foil shield, so that the anti-interference performance is poor.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an anti-interference USB.

In order to achieve the above purpose, the utility model adopts the technical scheme that: an anti-interference USB photoelectric composite wire comprises a composite cable core, wherein an outer aluminum foil layer is extruded and wrapped on the composite cable core, a braided shielding layer is extruded and wrapped on the outer aluminum foil layer, an outer sheath is extruded and wrapped on the braided shielding layer, and the composite cable core comprises a four-core multimode optical fiber, a data transmission line, a signal feedback line and a power line;

the data transmission line comprises two first conductors, a first insulating layer extruded on the first conductors and a first inner aluminum foil layer wrapping the two first insulating layers, wherein a first ground wire is arranged between the first inner aluminum foil layer and the first insulating layer, and the conductive surface of the first inner aluminum foil layer faces inwards and is in contact with the first ground wire;

the signal feedback line comprises a second conductor, a second ground wire and a second inner aluminum foil layer wrapping the second conductor and the second ground wire, a second insulating layer is extruded on the second conductor, and the conductive surface of the second inner aluminum foil layer is inwards contacted with the second ground wire.

Optionally, the composite cable core includes a group of four-core multimode optical fibers, a group of data transmission lines, four groups of signal feedback lines, and two groups of power lines, and the outer aluminum foil layer is filled with cotton threads.

Optionally, four-core multimode fiber is four-core OM3 multimode colored fiber, four-core OM3 multimode colored fiber overcoat has connect half tight cover, half tight cover is the round pipe body of low smoke and zero halogen insulating material extrusion molding.

Optionally, the power line includes a third conductor and a third insulating layer extruded on the third conductor.

Optionally, the outer sheath is a PVC extruded pipe, or a TPE extruded pipe, or a TPU extruded pipe.

Compared with the prior art, the utility model discloses possess following beneficial effect: the utility model discloses soft light carries and lays wire easily, and fiber transmission distance is far away, and high frequency transmission attenuates and diminishes, and interference immunity is strong.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

In the figure: 1. a composite cable core; 2. a four-core multimode optical fiber; 3. semi-tight sleeve; 4. a data transmission line; 5. a first conductor; 501. a first insulating layer; 6. a first inner aluminum foil layer; 7. a first ground line; 8. a signal feedback line; 9. a second conductor; 901. a second insulating layer; 10. a second ground line; 11. a second inner aluminum foil layer; 12. a power line; 13. a third conductor; 14. a third insulating layer; 15. cotton threads; 16. an outer aluminum foil layer; 17. weaving a shielding layer; 18. an outer sheath.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example (b): referring to fig. 1, the utility model provides an anti-interference USB photoelectric composite wire, including composite cable core 1, the crowded package has outer aluminium foil layer 16 on the composite cable core 1, and crowded package has woven shield layer 17 on outer aluminium foil layer 16, and crowded package has oversheath 18 on woven shield layer 17. Wherein, outer aluminium foil layer 16 is along the periphery of clockwise winding at composite cable core 1, and oversheath 18 is TPU extruded tube, is applicable to the operating mode that needs to buckle for a long time and uses, and it is better to have resistant bending performance, is convenient for accomodate, the soft advantage of sense of touch.

The composite cable core 1 comprises a group of four-core multimode optical fibers 2, a group of data transmission lines 4, four groups of signal feedback lines 8 and two groups of power lines 12, and cotton lines 15 are filled in an outer aluminum foil layer 16. Four cotton threads 15 are arranged, and the four cotton threads 15 are respectively arranged around the four-core multimode optical fiber 2, the data transmission line 4, the signal feedback line 8 and the power line 12 and used for increasing the tensile capacity of the anti-composite cable core 1.

The four-core multimode optical fiber 2 is a four-core OM3 multimode colored optical fiber, and the four-core OM3 multimode colored optical fiber has small attenuation of optical fiber signals and good signal transmission quality within a distance of hundreds of meters or even kilometers. The four-core OM3 multimode colored optical fiber is sleeved with a semi-tight sleeve 3, and the semi-tight sleeve 3 is a circular tube body made of low-smoke halogen-free insulating materials through extrusion molding.

The data transmission line 4 includes two first conductors 5 disposed side by side, a first insulating layer 501 extruded on the first conductors 5, and a first inner aluminum foil layer 6 covering the two first insulating layers 501, wherein the first inner aluminum foil layer 6 is wound on the first insulating layer 501 in a clockwise direction, and a mylar layer is wound on an outer surface of the first inner aluminum foil layer 6 in the clockwise direction. A first ground wire 7 is provided between the first inner aluminum foil layer 6 and the first insulating layer 501, and the conductive surface of the first inner aluminum foil layer 6 faces inward and is in contact with the first ground wire 7.

The signal feedback line 8 comprises a second conductor 9, a second ground 10 and a second inner aluminum foil layer 11 wrapping the second conductor 9 and the second ground 10, wherein a second insulating layer 901 is extruded on the second conductor 9, the second inner aluminum foil layer 11 is wound on the second insulating layer 901 in the clockwise direction, a mylar layer is wound on the outer surface of the second inner aluminum foil layer 11 in the clockwise direction, and the conductive surface of the second inner aluminum foil layer 11 is inwardly contacted with and contacted with the second ground 10. The power supply line 12 includes a third conductor 13, and a third insulating layer 14 that is extruded over the third conductor 13. Outer aluminum foil layer 16, first interior aluminum foil layer 6 and second interior aluminum foil layer 11 are all in the clockwise winding for data transmission line 4 is comparatively soft, conveniently lays wire.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an anti-interference USB photoelectric composite line, includes composite cable core (1), crowded package has outer aluminium foil layer (16) on composite cable core (1), crowded package has woven shielding layer (17) on outer aluminium foil layer (16), crowded package has oversheath (18), its characterized in that on woven shielding layer (17): the composite cable core (1) comprises a four-core multimode optical fiber (2), a data transmission line (4), a signal feedback line (8) and a power line (12);

the data transmission line (4) comprises two first conductors (5), a first insulating layer (501) extruded on the first conductors (5), and a first inner aluminum foil layer (6) wrapping the two first insulating layers (501), a first ground wire (7) is arranged between the first inner aluminum foil layer (6) and the first insulating layer (501), and the conductive surface of the first inner aluminum foil layer (6) faces inwards and is in contact with the first ground wire (7);

the signal feedback line (8) comprises a second conductor (9), a second ground wire (10) and a second inner aluminum foil layer (11) wrapping the second conductor (9) and the second ground wire (10), a second insulating layer (901) is extruded on the second conductor (9), and a conductive surface of the second inner aluminum foil layer (11) is inward and is in contact with the second ground wire (10).

2. The anti-interference USB photoelectric composite wire according to claim 1, wherein: the composite cable core (1) comprises a group of four-core multimode optical fibers (2), a group of data transmission lines (4), four groups of signal feedback lines (8) and two groups of power lines (12), and cotton wires (15) are filled in the outer aluminum foil layer (16).

3. The anti-interference USB photoelectric composite wire according to claim 2, wherein: four-core multimode fiber (2) are four-core OM3 multimode colored optical fiber, four-core OM3 multimode colored optical fiber overcoat has connect half tight cover (3), half tight cover (3) are low smoke and zero halogen insulating material extrusion molding's pipe body.

4. The anti-interference USB photoelectric composite wire according to claim 2, wherein: the power supply line (12) comprises a third conductor (13) and a third insulating layer (14) extruded on the third conductor (13).

5. The anti-interference USB photoelectric composite wire according to claim 1, wherein: the outer sheath (18) is a PVC extruded pipe, a TPE extruded pipe or a TPU extruded pipe.