CN214253971U - Flat form photoelectricity mixes cable structure - Google Patents

Abstract

The utility model relates to a flat form photoelectricity hybrid cable structure, including the insulating sheath of flat form, be equipped with the cable in the insulating sheath, the both ends of insulating sheath are equipped with the cable joint with cable signal connection respectively, the cable includes power group, electron group, optic fibre, bare ground group, USB group that set up side by side and be the individual layer and arrange, optic fibre sets up in the middle; the power line group is used for transmitting current; the electronic wire group is used for transmitting a CC signal and a VCONN signal; the optical fiber is used for transmitting optical signals; the bare ground wire group is used for controlling voltage drop at two ends of the cable; the USB line group is used for transmitting USB signals. The utility model discloses a flat cable thickness reduces, and the compliance is good, has improved the bending life-span of cable, machining efficiency, has solved the not enough isotructure problem in space that uses round cable to lead to and has do benefit to the welding process of follow-up assembly and subsequent handling.

Description

Flat form photoelectricity mixes cable structure

Technical Field

The utility model relates to a cable technical field, concretely relates to flat form photoelectricity hybrid cable structure.

Background

The round cable is lower in bending property and slightly poor in bending degree and flexibility, occupies more space in a bending state, is inconvenient to carry, and can not meet the requirements of people gradually. Because of market demand, flat cable more and more obtains people's favor, and flat cable in addition has the advantage for the round cable in many aspects such as bendability, stability, thermal diffusivity, and only need before the design with sinle silk order reasonable in design, especially adapted subsequent welding process.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to the technical problem who exists among the prior art, provide a mixed cable structure of flat form photoelectricity, improve the bending life-span of cable, machining efficiency, solve the assembly problem of space restriction structure problem and production process that uses the circle cable to lead to.

The utility model provides an above-mentioned technical problem's technical scheme as follows:

a flat photoelectric hybrid cable structure comprises a flat insulating sheath, wherein a cable is arranged in the insulating sheath, cable connectors in signal connection with the cable are respectively arranged at two ends of the insulating sheath, the cable comprises a power line group, an electronic line group, an optical fiber, a bare ground line group and a USB line group which are arranged side by side, the power line group, the electronic line group, the optical fiber, the bare ground line group and the USB line group are arranged in the insulating sheath in a single-layer mode, and the optical fiber is arranged in the middle;

the power line group is used for transmitting current;

the electronic wire group is used for transmitting a CC signal and a VCONN signal;

the optical fiber is used for transmitting optical signals;

the bare ground wire group is used for controlling voltage drop at two ends of the cable;

the USB line group is used for transmitting USB signals.

Preferably, an optical module is arranged on the cable connector, the optical module is arranged in the middle of the cable connector, and the optical fiber is spliced with the optical module.

Preferably, a metal shielding layer is arranged outside the power line group, and the metal shielding layer is an aluminum film coating layer.

Preferably, the bare ground wires are arranged into a plurality of bare ground wires which are arranged in parallel, and the bare ground wires are wound and fixed through a flexible winding belt.

Preferably, the electronic line group includes a CC line and a VCONN line arranged in parallel, and the CC line, the VCONN line and the optical fiber are wound and fixed by a flexible winding tape.

Preferably, the USB line group includes two USB lines arranged side by side, and further includes a bare ground line, and the two USB lines and the bare ground line are wound and fixed by a flexible winding tape.

Preferably, the insulating sheath is made of TPU.

The utility model has the advantages that: the utility model discloses set up the mixed cable of photoelectricity into flat cable, the thickness of cable reduces, makes its compliance increase, improves the bending life-span of cable, machining efficiency, solves the not enough isotructure problem in space that uses round cable to lead to. Compared with a round cable, the flat cable is more convenient to be connected with the pin of the cable connector in a positioning mode, and subsequent assembly and welding processing of subsequent procedures are facilitated. The optical fiber is arranged in the cable, so that the optical fiber can be inserted into an optical module of the cable connector without being bent, and unnecessary insertion loss of the optical fiber and influence on transmission of optical signals are avoided.

Drawings

FIG. 1 is a schematic cross-sectional view of a conventional round cable;

fig. 2 is a schematic cross-sectional structure view of the flat photoelectric hybrid cable of the present invention;

FIG. 3 is a schematic diagram of a pad structure of the cable connector according to the present invention;

fig. 4 is the optical module and optical fiber position matching schematic diagram of the cable connector of the present invention.

Detailed Description

The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.

For the convenience of description of the present embodiment, a round cable of the prior art will be described in comparison with a flat cable of the present embodiment. Fig. 1 is a schematic cross-sectional view of a conventional round cable, fig. 2 is a schematic cross-sectional view of a flat-type optical-electrical hybrid cable provided in this embodiment, fig. 3 is a schematic cross-sectional view of a pad structure of a cable connector, and fig. 4 is a schematic cross-sectional view of an optical module and an optical fiber of the cable connector. The round cable and the flat cable share the cable joint shown in fig. 3.

As shown in fig. 1, the structure of the prior art round cable is as follows:

1. 2 pieces of 28AWG wire rods are used as USB2.0 wires (corresponding to UD + and UD-pins connected with a figure 3) and are attached with 1 piece of ground wire to be used as a B unit;

2. 2 pieces of 30AWG wires are used as the electrical wires for the CC1 and VCONN signals, i.e., the C cell in FIG. 1 (corresponding to the CC and VCONN pins in FIG. 3);

3. 2 pieces of 20AWG wires are adopted as power supply wires, namely D units in the figure 1 (corresponding to the VBUS pins connected with the figure 3);

4. 1 22AWG wire is used as a bare ground wire for ensuring the voltage drop at two ends of the cable (correspondingly connected with a GND pin in the figure 3);

5. the optical unit adopts 2 cores (OM2 optical fiber), namely an A unit (used for an optical module in a plug cable connector) in the figure 1;

6. a layer of braid layer is arranged outside the inner core cable and is used as a ground wire for shielding signal interference (correspondingly connected with a GND pin in the figure 3);

7. the outer quilt (i.e. the socket in fig. 1) is in a regular round shape, and the thickness of a single side is about 0.3 mm.

The existing round cable has the defect that the flexibility and the bending degree are slightly poor, and when a space structure is limited, the flat cable with better bending degree can adapt to the use requirement. Under the unchangeable prerequisite of function, developed a flexibility and the equal better flat cable of crookedness to satisfy higher user demand.

Fig. 2 shows that the optical-electrical hybrid cable structure in a flat form provided in this embodiment includes an insulating sheath (corresponding to jack in fig. 2) in a flat form, a cable is disposed in the insulating sheath, cable connectors connected to cable signals are respectively disposed at two ends of the insulating sheath, the cable includes a power line group, an electronic line group, an optical fiber, a bare ground line group, and a USB line group, which are disposed side by side, the power line group, the electronic line group, the optical fiber, the bare ground line group, and the USB line group are disposed in a single layer in the insulating sheath, and the optical fiber is disposed in the middle. This embodiment still employs the cable connector of FIG. 3, whose corresponding pins for connecting cables include VCONN, CC, VBUS, GND, UD +, UD-.

The power line group, namely the D unit shown in fig. 2, is correspondingly connected to the VBUS pin of fig. 3, and is used for transmitting current;

the electrical line group, i.e., the C cell shown in fig. 2, is correspondingly connected to the CC and VCONN pins of fig. 3, and is used for transmitting the CC signal and the VCONN signal;

the Optical Fiber is an a Unit (Optical Fiber Unit) shown in fig. 2, and is used for transmitting an Optical signal, and the Optical Fiber is connected with an Optical module on a cable connector;

the bare ground group, namely the Drain shown in FIG. 2, is correspondingly connected to the GND pin shown in FIG. 3, and is used for controlling the voltage drop at two ends of the cable;

the USB line group, i.e., the B unit shown in fig. 2, is correspondingly connected to the UD + and UD-pin of fig. 3, and is used for transmitting USB signals.

Set up the mixed cable of photoelectricity into flat cable, the thickness of cable reduces, makes its compliance increase, improves the bending life of cable, machining efficiency, solves the not enough class of structure problem in space that uses round cable to lead to. Compared with a round cable, the flat cable is more convenient to be connected with the pin of the cable connector in a positioning mode, and subsequent assembly and welding processing of subsequent procedures are facilitated.

As shown in fig. 4, an optical module is disposed on the cable connector, the optical module is disposed in the middle of the cable connector, and the optical fiber (i.e., the a unit) is plugged into the optical module. Because the spatial structure of cable joint limits, the optical module sets up the central point at cable joint, and this embodiment sets up the optic fibre of flat cable at central point, can directly peg graft optic fibre on the optical module under the condition of not buckling optic fibre, avoids optic fibre to produce unnecessary insertion loss, influence the transmission of light signal.

As shown in fig. 2, a metal shielding layer is disposed outside the power line group (i.e., the D cell), and the metal shielding layer is an aluminum film coating layer. The power line group comprises two power lines, and an aluminum foil coating layer is coated outside the power lines to shield electromagnetic fields of the power lines from generating electromagnetic interference on other lines.

Preferably, the bare ground wires (i.e., Drain) are arranged as a plurality of bare ground wires arranged in parallel, in this embodiment, three bare ground wires are arranged in parallel, and the three bare ground wires are wound and fixed by a flexible winding tape. On the premise of ensuring the voltage drop at two ends of the cable, if a bare ground wire is arranged, the whole flat cable is hard and has slightly poor flexibility; several thin bare ground wires are arranged side by side, so that the overall flexibility of the cable can be increased while the voltage drop of the cable is ensured, and the bending life of the cable is prolonged.

Preferably, the group of electrical lines (i.e., C cells) includes a CC line and a VCONN line arranged in parallel, and the CC line, the VCONN line and the optical fiber are wound and fixed by a flexible winding tape. The CC line and the VCONN line are respectively used for transmitting the CC signal and the VCONN signal, and the flexible winding belt winds the CC line and the VCONN signal together, so that the regularity of the internal line shape of the flat cable is facilitated, and the insulating sheath is more convenient to add in the subsequent process.

Preferably, the USB line group (i.e., unit B) includes two USB lines arranged side by side, and further includes a bare ground line, and the two USB lines and the bare ground line are wound and fixed by a flexible winding tape. The two USB lines are used for transmitting USB signals, and the two USB lines and a bare ground wire are wound and fixed by the flexible winding belt, so that the stability of the USB signals is improved, and the interference is reduced.

Preferably, the insulating sheath (i.e. jack) is made of TPU. TPU (thermoplastic polyurethanes) is named as thermoplastic polyurethane elastomer rubber, has excellent characteristics of high tension, high tensile force, toughness and aging resistance, and is a mature environment-friendly material. The TPU has better insulating property and flexibility, and can meet the requirement of the embodiment on the insulating sheath.

This embodiment sets up the mixed cable of photoelectricity into flat cable, and the thickness of cable reduces, makes its compliance increase, improves the bending life-span of cable, machining efficiency, solves the not enough scheduling structure problem in space that uses round cable to lead to. Compared with a round cable, the flat cable is more convenient to be connected with the pin of the cable connector in a positioning mode, and subsequent assembly and welding processing of subsequent procedures are facilitated. The optical fiber is arranged in the cable, so that the optical fiber can be inserted into an optical module of the cable connector without being bent, and unnecessary insertion loss of the optical fiber and influence on transmission of optical signals are avoided.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims (7)

1. A flat photoelectric hybrid cable structure comprises a flat insulating sheath, wherein a cable is arranged in the insulating sheath, and cable connectors in signal connection with the cable are respectively arranged at two ends of the insulating sheath;

the power line group is used for transmitting current;

the electronic wire group is used for transmitting a CC signal and a VCONN signal;

the optical fiber is used for transmitting optical signals;

the bare ground wire group is used for controlling voltage drop at two ends of the cable;

the USB line group is used for transmitting USB signals.

2. The structure of claim 1, wherein an optical module is disposed on the cable connector, the optical module is disposed at the center of the cable connector, and the optical fiber is plugged into the optical module.

3. The hybrid cable structure of claim 1, wherein a metal shielding layer is disposed outside the power line group, and the metal shielding layer is an aluminum film coating layer.

4. The hybrid cable structure of claim 1, wherein the bare ground wires are arranged as a plurality of bare ground wires arranged in parallel, and the plurality of bare ground wires are wound and fixed by a flexible winding tape.

5. The hybrid cable structure of claim 1, wherein the set of electrical lines comprises parallel CC lines and VCONN lines, and the CC lines, the VCONN lines and the optical fibers are wound and fixed by a flexible winding tape.

6. The hybrid cable structure of claim 1, wherein the USB cable set includes two USB wires disposed side by side, and further includes a bare ground wire, and the two USB wires and the bare ground wire are wound and fixed by a flexible winding tape.

7. The hybrid cable structure of claim 1, wherein the insulating sheath is made of TPU.

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