CN207116052U - Optical fiber USB audio and video cable - Google Patents

Abstract

The utility model discloses an optic fibre USB audio frequency and video line, include outside sheath and locate middle group in the outside sheath, middle group includes optical signal group, power group and ground wire, optical signal group the power group with the ground wire transposition each other constitutes middle group, optical signal group is used for transmitting USB3.0 audio frequency and video signal. The optical fiber signal line group is used as a signal transmission medium, the weight of the wire is effectively reduced compared with the traditional material or alloy conductor, meanwhile, due to the transmission characteristic of the optical fiber, the number of the core wires is reduced by half, the outer diameter is made within 3 millimeters, and the wire is fifty percent smaller than the traditional USB3.0 wire. During optical fiber signal transmission, the photoelectric modules at two ends of the wire rod are used for conversion, so that no electromagnetic radiation exists in the transmission process, and the anti-interference capability is strong.

Description

Optical fiber USB audio and video cable

technical field

The utility model relates to the field of wire equipment, in particular to an optical fiber USB audio and video cable.

Background technique

At present, the USB3.0 cables on the market mainly use copper or alloy conductors as the transmission medium for high-speed signal transmission. The insulating material is mostly foamed PE material.

Due to the influence of specifications, outer diameter and high-frequency characteristics of conventional USB3.0 wires, the use length is limited to less than 3M. For the use length of more than 3M, the current USB3.0 wire specifications cannot meet, otherwise the conductor specification needs to be increased. However, it does not meet the requirements of the relevant outer diameter of the USB Association, and the connector end cannot be processed.

Conventional USB3.0 cables have complex structures and many production processes. Among them, the USB3.0 high-speed signal line needs 2 pairs of twisted wires to transmit audio and video signals or transmit data. First twist the copper, then press the core wire, add the ground wire to the twisted pair, cover the aluminum foil and Mylar tape, and then add the aluminum foil braid for shielding , and the outside is sheathed. There are many processing processes and the process is cumbersome, which leads to poor control of high-frequency stability and high defect rate. At the same time, it is greatly affected by the surrounding electromagnetic interference.

Utility model content

The purpose of the utility model is to provide an optical fiber USB audio and video cable, which can effectively reduce the weight of the wire.

For this purpose, the utility model adopts the following technical solutions:

An optical fiber USB audio and video line, comprising an outer sheath and an intermediate wire group arranged in the outer sheath, the intermediate wire group includes an optical fiber signal wire group, a power wire group and a ground wire, and the optical fiber signal wire group , the power line group, the ground wire and other necessary electronic wires are twisted together to form the intermediate line group, and the optical fiber signal line group is used to transmit USB (Universal Serial Bus, Universal Serial Bus) 3.0 audio video signal.

As a signal transmission medium, the optical fiber signal line group effectively reduces the weight of the wire compared to the traditional material or alloy conductor. At the same time, due to the transmission characteristics of the optical fiber, the number of core wires is reduced by half, and the outer diameter is within 3mm. Compared with the traditional USB3.0 wire is 50% smaller. Specifically, the specific gravity of the copper conductor is 8.89, and the specific gravity of the optical fiber is about 1.0, so the overall weight of the optical fiber USB3.0 data cable of this solution will be reduced by more than 50% with the same length of wire.

When the optical fiber signal is transmitted, it relies on the photoelectric modules at both ends of the wire for conversion, so there is no electromagnetic radiation during transmission, and the anti-interference ability is strong. Among them, the process technology of two pairs of signal wires is directly changed from the original twisted copper-core wire-twisted-tape to the middle wire group extrusion, which is simplified from four processes to one process, which improves production efficiency and reduces process abnormalities. good quality.

Preferably, the optical fiber signal line group includes a quilt and two optical fibers arranged in the quilt, the colors of the two optical fibers are different to distinguish them, and the two optical fibers are used to transmit USB3.0 Audio and video signals.

Preferably, the intermediate thread group further includes several bulletproof threads, and the bulletproof threads are evenly filled inside the intermediate thread group to enhance the stretchability of the entire thread.

Preferably, the outer sheath is made of TPE (Thermoplastic Elastomer, thermoplastic elastomer).

Preferably, the inner cover is made of FEP (Fluorinated ethylene propylene, fluorinated ethylene propylene copolymer) material.

Preferably, the power cord set includes an intermediate conductor and an insulating layer arranged outside the intermediate conductor, the specification of the intermediate conductor is 24AWG (American wire gauge, American Wire Gauge), and the value in front of the AWG (such as 24AWG, 26AWG ) indicates the size of the cross-sectional area of the conductor after the wire is completed. The larger the value, the smaller the cross-sectional area and the smaller the diameter of the conductor. On the contrary, the smaller the value, the larger the cross-sectional area and the larger the conductor diameter.

Preferably, the ground wire is a tinned copper wire, and the specification of the ground wire is 28AWG.

Preferably, a tissue wrapping layer is provided between the outer sheath and the middle thread group.

The beneficial effect of the utility model: the optical fiber signal line group is used as a signal transmission medium, which effectively reduces the weight of the wire material compared with the traditional material or alloy conductor, and at the same time, due to the transmission characteristics of the optical fiber, the number of core wires is reduced by half, and the outer diameter is achieved. Within 3mm, 50% smaller than traditional USB3.0 cables. When the optical fiber signal is transmitted, it relies on the photoelectric modules at both ends of the wire for conversion, so there is no electromagnetic radiation during transmission, and the anti-interference ability is strong.

Description of drawings

Fig. 1 is the structural representation of optical fiber USB audio and video line of the present invention;

Fig. 2 is a structural schematic diagram of an optical fiber signal line group;

Fig. 3 is a schematic structural diagram of a power cord set;

In the picture:

1. Optical fiber signal line group; 11. Optical fiber; 12. Inner quilt;

2. Power cord set; 21. Intermediate conductor; 22. Insulation layer;

3. Bulletproof wire;

4. Ground wire;

5. Cotton paper covering layer;

6. Outer sheath.

Detailed ways

The technical scheme of the utility model will be further described below in conjunction with the accompanying drawings and through specific embodiments.

As shown in Figures 1-3, a fiber optic USB audio and video cable includes an outer sheath 6 and an intermediate line set inside the outer sheath 6, the intermediate line set includes an optical fiber signal line set 1, a power cord group 2 and ground wire 4, the optical fiber signal line group 1, the power line group 2 and the ground wire 4 are mutually twisted to form the intermediate line group, and the optical fiber signal line group 1 is used to transmit USB (Universal Serial Bus, Universal Serial Bus) 3.0 audio and video signals.

As a signal transmission medium, the optical fiber signal line group 1 effectively reduces the weight of the wire compared to the traditional material or alloy conductor. At the same time, due to the transmission characteristics of the optical fiber, the number of core wires is reduced by half, and the outer diameter is less than 3mm. Compared with the traditional The USB3.0 wire is fifty percent smaller. Specifically, the specific gravity of the copper conductor is 8.89, and the specific gravity of the optical fiber is about 1.0, so the overall weight of the optical fiber USB3.0 data cable of this solution will be reduced by more than 50% with the same length of wire.

When the optical fiber signal is transmitted, it relies on the photoelectric modules at both ends of the wire for conversion, so there is no electromagnetic radiation during transmission, and the anti-interference ability is strong. Among them, the process technology of two pairs of signal wires is directly changed from the original twisted copper-core wire-twisted-tape to the middle wire group extrusion, which is simplified from four processes to one process, which improves production efficiency and reduces process abnormalities. good quality.

In this embodiment, the optical fiber signal line set 1 includes a jacket 12 and two optical fibers 11 disposed in the jacket 12. The colors of the two optical fibers 11 are different to distinguish them. Two of them are The optical fiber 11 is used to transmit USB3.0 audio and video signals.

In this embodiment, the intermediate thread group further includes several bulletproof threads 3, and the bulletproof threads 3 are evenly filled inside the intermediate thread set to enhance the stretchability of the entire thread.

In this embodiment, the outer sheath 6 is made of TPE (Thermoplastic Elastomer, thermoplastic elastomer).

In this embodiment, the inner quilt 12 is made of FEP (Fluorinated ethylene propylene, fluorinated ethylene propylene copolymer) material.

In this embodiment, the power cord set 2 includes an intermediate conductor 21 and an insulating layer 22 disposed outside the intermediate conductor 21. The specification of the intermediate conductor 21 is 24AWG (American wire gauge, American wire gauge), AWG The previous value (such as 24AWG, 26AWG) indicates the size of the cross-sectional area of the conductor after the wire is completed. The larger the value, the smaller the cross-sectional area and the smaller the conductor diameter. On the contrary, the smaller the value, the larger the cross-sectional area and the larger the conductor diameter.

In this embodiment, the ground wire 4 is a tinned copper wire, and the specification of the ground wire 4 is 28AWG. A tissue wrapping layer 5 is provided between the outer sheath 6 and the middle thread group.

This solution effectively solves the disadvantages of the existing USB3.0 wires that are heavy, and greatly reduces the overall weight and outer diameter of the wires. The same length of wires can reduce the overall weight by more than 50%, allowing consumers to use it better and more conveniently. USB3.0 cable.

Conventional USB3.0 wires generally use a length of less than 3M, the conductor specification is 32AWG-26AWG, and the outer diameter of the wire is 4.5-6.0MM. Due to the small size of the conductor, if the length of the wire is too long, the signal attenuation of the wire is too large, and the terminal display device cannot receive normal signals, which will lead to slow or interrupted data transmission and other adverse conditions. In this solution, the optical fiber USB audio and video cable has small signal attenuation, small outer diameter of the wire, and the length can reach tens of meters, and the data transmission rate can reach 5Gbps.

In this solution, the optical fiber USB3.0 data line has a simple structure, fewer processing procedures, simple technology, easy control of wire characteristics, low defect rate, no radiation, and strong anti-interference ability.

Apparently, the above-mentioned embodiments of the present utility model are only examples for clearly illustrating the present utility model, rather than limiting the implementation manner of the present utility model. For those of ordinary skill in the art, other changes or changes in different forms can be made on the basis of the above description. It is not necessary and impossible to exhaustively list all the implementation manners here. All modifications, equivalent replacements and improvements made within the spirit and principles of the utility model shall be included in the protection scope of the claims of the utility model.

Claims (8)

1. A kind of 1. optical fiber USB video/audio wires, it is characterised in that the medium line including external jacket and in the external jacket Group, the medium line group include fiber-optic signal line group, source line group and ground wire, the fiber-optic signal line group, the source line group With the mutually twisted composition medium line group of the ground wire, the fiber-optic signal line group is used to transmit USB3.0 audio-video signals.
2. 2. optical fiber USB video/audio wires according to claim 1, it is characterised in that the fiber-optic signal line group includes middle quilt And middle differed by two interior optical fiber, the color of two optical fiber located at described.
3. 3. optical fiber USB video/audio wires according to claim 1, it is characterised in that the medium line group also includes some anti- Elater.
4. 4. optical fiber USB video/audio wires according to claim 1, it is characterised in that the external jacket is TPE materials.
5. 5. optical fiber USB video/audio wires according to claim 2, it is characterised in that described middle by for FEP materials.
6. 6. optical fiber USB video/audio wires according to claim 1, it is characterised in that the source line group includes middle conductor With the insulating barrier outside the middle conductor, the specification of the middle conductor is 24AWG.
7. 7. optical fiber USB video/audio wires according to claim 1, it is characterised in that the ground wire is tinned wird, describedly The specification of line is 28AWG.
8. 8. the optical fiber USB video/audio wires according to claim any one of 1-7, it is characterised in that the external jacket and institute State and be provided with cotton paper clad between medium line group.