CN216528130U - HDMI photoelectric hybrid cable - Google Patents

Abstract

The utility model discloses an HDMI photoelectric hybrid cable, which comprises an optical fiber line set, a parallel line pair, a signal line set, an insulating jacket and a plurality of filling lines, wherein the optical fiber line set, the parallel line pair, the signal line set and each filling line are respectively coated in the insulating jacket; the optical fiber line group comprises a plurality of optical fiber pairs and insulating layers covering the optical fibers; the parallel line pair comprises two central conductors and an insulating wrapping tape wrapping the two central conductors, and the two central conductors are arranged in parallel. The utility model relates to an HDMI photoelectric hybrid cable, which reduces the wire diameter increase of core wires due to pair twisting and the damage caused by the pair twisting of two core wires by arranging parallel wire pairs in parallel, ensures the integrity of a wire structure and improves the stability of wire data transmission.

Description

HDMI photoelectric hybrid cable

Technical Field

The utility model relates to the field of photoelectric hybrid cables, in particular to an HDMI photoelectric hybrid cable.

Background

The photoelectric hybrid cable is a novel access mode, integrates optical fibers and a feeder line, solves the problems of optical fiber communication and equipment power utilization, does not generate mutual interference phenomenon in the transmission process of optical signals and electric energy, retains the characteristics of common optical fiber cables and can meet the relevant standards of mortgage transmission cables.

The transmission distance of the traditional copper cable is within 10 meters, amplifier transmission needs to be increased, and the copper signal wire in the existing photoelectric hybrid cable is usually in butt joint, so that the wire diameter of the wire is large, the structure of the wire is easy to damage, and the signal transmission is unstable.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects in the prior art, and provides an HDMI photoelectric hybrid cable which can improve the data transmission rate, reduce the overall weight of wires, reduce the wire diameter, ensure the structural integrity of the wires and improve the stability of wire data transmission.

The purpose of the utility model is realized by the following technical scheme:

an HDMI opto-electric hybrid cable comprising: the optical fiber line set, the parallel line pair, the signal line set, the insulating jacket and the filling lines are respectively coated in the insulating jacket;

the optical fiber line group comprises a plurality of optical fiber pairs and insulating layers coated outside the optical fibers;

the parallel line pair comprises two central conductors and an insulating wrapping tape wrapping the two central conductors, and the two central conductors are arranged in parallel.

Preferably, the signal line group includes a first core line, a second core line and a third core line, and the first core line, the second core line and the third core line are respectively disposed in the insulating sheath.

Preferably, the first core is provided with a plurality of cores, and the first cores are sequentially arranged in the insulating sheath. The first core is provided with three.

Preferably, a linear distance between the third core and each of the first cores is greater than 1.1 mm.

Preferably, the optical fiber pair includes two optical fiber conductors.

Preferably, the number of the second core wires is two, and the two second core wires are respectively coated in the insulating outer sleeve.

Preferably, the insulating wrapping tape is wrapped on the two central conductors in a spiral winding mode.

Preferably, the insulating outer sleeve comprises a shielding layer, a braid and an insulating outer cover, the shielding layer covers the optical fiber line set, the parallel line pairs, the signal line set and the plurality of filling lines, the braid covers the shielding layer, and the insulating outer cover covers the braid.

Preferably, the shielding layer is an aluminum foil or a copper foil.

Preferably, the insulating outer layer is of a one-piece extruded construction.

Compared with the prior art, the utility model has the following advantages and beneficial effects:

the utility model relates to an HDMI photoelectric hybrid cable, which reduces the wire diameter increase of core wires caused by pair twisting and the damage caused by the pair twisting of two core wires by arranging parallel wire pairs in parallel, ensures the integrity of a wire structure and improves the stability of wire data transmission. In addition, by arranging the optical fiber wire group, the occupied space in the wire is small, so that the whole wire is light in weight and has excellent bending performance and good lateral pressure resistance; and can transmit the distance of dozens of kilometers far without using the repeater, realize the long-distance transmission of wire rod.

Drawings

Fig. 1 is a schematic structural diagram of an HDMI optical/electrical hybrid cable according to an embodiment of the present invention.

Detailed Description

To facilitate an understanding of the utility model, the utility model will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

Referring to fig. 1, an HDMI optical-electrical hybrid cable includes: the optical fiber cable comprises an optical fiber line group 10, parallel line pairs 20, a signal line group 30, an insulating outer sleeve 40 and a plurality of filling lines 50, wherein the optical fiber line group 10, the parallel line pairs 20, the signal line group 30 and the filling lines 50 are respectively coated in the insulating outer sleeve 40; the optical fiber line group 10 is used for transmitting data or signals, not only can be used for transmitting analog signals and digital signals, but also can meet the requirement of video transmission, the data transmission rate of a single optical fiber can reach 10Gbps, the transmission distance can reach dozens of kilometers under the condition of not using a repeater, and the traditional copper wire design can not reach the requirement far away. The parallel line pair 20 is used for improving the stability of data transmission; the signal line group 30 is used for transmitting other different signals; the insulating outer sleeve 40 is used for protecting; the fill line 50 serves as a support.

It should be noted that the optical fiber has the optical fiber with small outer diameter, each fiber core is only 50-100 microns, the weight is light, and the occupied space is small; and the steel plate has excellent bending performance and good lateral pressure resistance, and is convenient to construct.

Referring to fig. 1, the optical fiber set 10 includes a plurality of optical fiber pairs 11 and an insulating layer 12 covering the optical fibers; in particular, the optical fiber pair comprises two optical fiber conductors. In the present embodiment, the optical fiber line group 10 includes two optical fiber pairs 11; there may of course also be four, six, eight or even ten or twelve, that is to say the optical fibre conductors may be in four, six, eight or twelve groups, etc. Therefore, long-distance transmission of the wire rod can be realized, and the space and the weight of the whole wire rod can be reduced.

Referring to fig. 1, the parallel line pair 20 includes two central conductors 21 and an insulating tape 22 covering the two central conductors, and the two central conductors are disposed in parallel. It should be noted that, in the conventional process, the wire pair is generally made into a twisted pair structure, but the twisting of two core wires in the twisted pair structure leads to an increase in wire diameter, and meanwhile, the data transmission is affected due to a certain damage of the twisted pair structure of the two core wires. The pair twisting group is made into a parallel pair structure, so that the damage caused by the increase of the wire diameter of the core wire caused by the pair twisting and the pair twisting of the two core wires is reduced, the parallel structure is more stable than the data transmission of the pair twisting structure through test comparison, the transmission distance is longer, meanwhile, the occupied area in the whole wire can be minimized, and the wire diameter of a finished product is effectively reduced. In this embodiment, through using horizontal around chartered plane, cross eye membrane, briquetting, aluminium foil, polyester area, oven, receipts line by the guide pulley of pay off rack parallel with two heart yearns. In addition, the wire diameter of a finished product of the traditional pair twisting process needs to be OD4.5, according to the scheme of the utility model, the wire diameter of the parallel process can be reduced to 4.0, and meanwhile, the parallel process is more stable in long-distance signal transmission and longer in distance compared with the pair twisting process under the same conductor specification.

It should be noted that the insulating wrapping tape is wrapped around the two central conductors in a spiral winding manner. Thus, the structural stability of the parallel line pair is improved.

Referring to fig. 1, the signal line group 30 includes a first core line 31, a second core line 32 and a third core line 33, and the first core line, the second core line and the third core line are respectively disposed in the insulating sheath. The first core 31, the second core 32 and the third core 33 transmit different data or signals, respectively.

It should be further noted that a plurality of first cores are arranged, and the first cores are sequentially arranged in the insulating outer sleeve. The first core is provided with three. In this way, the transmission rate can be increased.

Further, a straight-line distance between the third core and each of the first cores is greater than 1.1 mm. If the spatial positions of the second core wire and the optical fiber line set are interchanged, the capacitance between CEC-SCL-SD and GND is increased, when the capacitance exceeds 40pf/m, the contactor maintains a pull-in state, the control loop cannot be disconnected, and therefore misoperation is caused, and equipment cannot accurately complete related instructions. The optimized design keeps the distance between the third core wire GND and the three first core wires CEC-SCL-SD larger than 1.1mm, and aims to ensure that the third core wire and the first core wire have enough distance to reduce the capacitance between the third core wire and the first core wire, reduce the false action and ensure that the equipment completes corresponding actions. Meanwhile, in the optimized design, the distance between the third core wire and the first core wire in the wire is ensured to be the farthest after the total twisting, and the capacitance between the three CEC-SCL-SD wires and the GND is actually tested to be less than 40 pf/m.

It should be noted that two second core wires are arranged, and the two second core wires are respectively coated in the insulating outer sleeve. Thus, the stability of transmission can be improved.

Referring to fig. 1, the insulating sheath 40 includes a shielding layer 41, a braid layer 42 and an insulating sheath 43, the shielding layer covers the optical fiber cable assembly, the parallel line pairs, the signal cable assembly and the plurality of filler wires, the braid layer covers the shielding layer, and the insulating sheath covers the braid layer. In this embodiment, the shielding layer is an aluminum foil or a copper foil. The insulating outer layer is an integral extruded structure. In this manner, the shield layer 41, the braid layer 42, and the insulating cover 43 are provided, thereby providing shielding and protection functions.

The above embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. An HDMI optical-electrical hybrid cable, comprising: the optical fiber line set, the parallel line pair, the signal line set, the insulating jacket and the filling lines are respectively coated in the insulating jacket;

the optical fiber line group comprises a plurality of optical fiber pairs and insulating layers coated outside the optical fibers;

the parallel line pair comprises two central conductors and an insulating wrapping tape wrapping the two central conductors, and the two central conductors are arranged in parallel.

2. The HDMI hybrid cable of claim 1, wherein the signal line set comprises a first core, a second core and a third core, the first core, the second core and the third core being disposed within the insulating sheath, respectively.

3. The HDMI hybrid cable of claim 2, wherein the first core is provided with a plurality of first cores, and the first cores are sequentially arranged in the insulating sheath.

4. The HDMI hybrid cable of claim 3, wherein a linear distance between the third core and each of the first cores is greater than 1.1 mm.

5. The HDMI cable of claim 1, wherein said fiber pair comprises two fiber conductors.

6. The HDMI hybrid cable of claim 2, wherein there are two second core wires, and the two second core wires are respectively covered in the insulating outer sheath.

7. The HDMI hybrid cable of claim 1, wherein the insulating wrapping tape is wrapped around the two central conductors in a spiral winding manner.

8. The HDMI electro-optic hybrid cable of claim 1, wherein the insulating outer jacket comprises a shielding layer, a braid and an insulating outer cover, the shielding layer covers the optical fiber cable assembly, the parallel line pairs, the signal cable assembly and the plurality of filler wires, the braid covers the shielding layer, and the insulating outer cover covers the braid.

9. The HDMI optical-electrical hybrid cable of claim 8, wherein the shielding layer is aluminum foil or copper foil.

10. The HDMI cable of claim 8, wherein said insulating jacket is an integrally extruded structure.

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