CN218729949U

CN218729949U - Photoelectric composite cable

Info

Publication number: CN218729949U
Application number: CN202222535955.XU
Authority: CN
Inventors: 谷海伟; 杨彬
Original assignee: Huizhou LTK Electronic Cable Co Ltd; LTK Electric Wire Huizhou Co Ltd; LTK Electric Wire Changzhou Co Ltd
Current assignee: Huizhou LTK Electronic Cable Co Ltd; LTK Electric Wire Huizhou Co Ltd; LTK Electric Wire Changzhou Co Ltd; Shenzhen Woer Special Cable Co Ltd
Priority date: 2022-09-23
Filing date: 2022-09-23
Publication date: 2023-03-24
Anticipated expiration: 2032-09-23

Abstract

The utility model relates to the field of cables, a photoelectric composite cable is disclosed, including the inner core layer, the inner core layer includes A heart yearn, B heart yearn, C heart yearn, D heart yearn, ground wire and obturator, the C heart yearn includes C1 heart yearn, C2 heart yearn and C3 heart yearn, the D heart yearn includes D1 heart yearn and D2 heart yearn, C2 heart yearn and C3 heart yearn transposition heart yearn formation transposition heart yearn, A heart yearn, B heart yearn, ground wire, D1 heart yearn and D2 heart yearn are round around the transposition heart yearn jointly, C1 heart yearn sets up between D1 heart yearn and D2 heart yearn, the obturator is filled in the gap in the inner core layer; the A core wire comprises an optical fiber layer and an A sheath layer, and the A sheath layer is coated outside the optical fiber layer. The utility model discloses can reduce weight, reduce occupation space, improve bending property and resistant side pressure performance, reinforcing tensile and compressive capacity improve signal transmission stability, reduce signal loss.

Description

Photoelectric composite cable

Technical Field

The utility model relates to a cable field especially relates to a photoelectric composite cable.

Background

Currently, cables generally include an inner core layer and a jacket layer, wherein the inner core layer is the main structure of the cable, and inner core layers of different structures generally result in different electrical and physical properties of the cable. The existing cable has the defects of large weight, large occupied space, poor bending performance and lateral pressure resistance, poor tensile and compressive capacities, poor signal transmission stability, large signal loss and the like.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the weak point among the prior art, providing a photoelectric composite cable, can reduce weight, reduce occupation space, improve bending property and resistant side pressure performance, reinforcing tensile and compressive capacity improve signal transmission stability, reduce signal loss.

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

an optical-electrical composite cable comprises an inner core layer, wherein the inner core layer comprises an A core wire, a B core wire, a C core wire, a D core wire, a ground wire and a filler, the C core wire comprises a C1 core wire, a C2 core wire and a C3 core wire, the D core wire comprises a D1 core wire and a D2 core wire, the C2 core wire and the C3 core wire are twisted to form a twisted core wire, the A core wire, the B core wire, the ground wire, the D1 core wire and the D2 core wire jointly surround the twisted core wire to form a circle, the C1 core wire is arranged between the D1 core wire and the D2 core wire, and the filler is filled in a gap in the inner core layer; the A core wire comprises an optical fiber layer and an A sheath layer, and the A sheath layer is coated outside the optical fiber layer.

In one embodiment, the optical fiber layer is composed of a plurality of optical fibers having a diameter of 50 to 100 μm.

In one embodiment, the a jacket layer is a PVC jacket layer or an LSZH jacket layer.

In one embodiment, the core wire B comprises a twisted pair wire and an inner wrapping tape, the inner wrapping tape is wrapped outside the twisted pair wire, the twisted pair wire is formed by twisting two signal wires, each signal wire comprises a conductor B and a sheath layer B, and the sheath layer B is wrapped outside the conductor B.

In one embodiment, the C1 core wire includes a C conductor and a C sheath layer, the C sheath layer covers the C conductor, and the structures of the C2 core wire and the C3 core wire are the same as the structure of the C1 core wire.

In one embodiment, the D1 core wire includes a D conductor and a D sheath layer, the D sheath layer covers the D conductor, and the structure of the D2 core wire is the same as that of the D1 core wire.

In one embodiment, the photoelectric composite cable further includes a first wrapping tape, the first wrapping tape wraps the inner core layer, the filler is filled in a gap between the inner core layer and the first wrapping tape, and the first wrapping tape is a PP solid tape.

In one embodiment, the optical-electrical composite cable further includes a second wrapping tape, the second wrapping tape is wrapped outside the first wrapping tape, and the second wrapping tape is an aluminum foil tape.

In one embodiment, the optical/electrical composite cable further comprises a woven layer, the woven layer is a tinned copper woven layer, the woven layer is coated outside the second wrapping band, and the density of the woven layer is greater than or equal to 90%.

In one embodiment, the optical-electrical composite cable further includes a tegument layer covering the braided layer, the tegument layer being a TPU tegument layer.

Compared with the prior art, the utility model discloses at least, following advantage has:

the optical fiber layer is replaced by a plurality of groups of high-speed pairs in the prior art through the A core wire, the optical fiber layer consists of a plurality of optical fibers, and has the characteristics of light weight, small diameter and small occupied space, and also has superior bending performance and good lateral pressure resistance performance, and is convenient to construct; through the stranding of the A core wire, the B core wire, the C core wire, the D core wire and the ground wire, the filling body is filled in the gap in the inner core layer, the structural stability of the photoelectric composite cable can be improved, the tensile and compressive capacity is enhanced, the bending performance and the side pressure resistance are improved, the signal transmission stability is improved, and the low-speed signal or signal loss caused by side pressure and swinging is reduced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

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

Fig. 2 is a schematic structural diagram of an inner core layer of an optical-electrical composite cable according to an embodiment of the present invention.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The 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.

In one embodiment, referring to fig. 1 to 2, an optical-electrical composite cable 10 includes an inner core layer 110, where the inner core layer 110 includes an a core wire 111, a B core wire 112, a C core wire 113, a D core wire 114, a ground wire 115, and a filler 116, the C core wire 113 includes a C1 core wire, a C2 core wire, and a C3 core wire, the D core wire 114 includes a D1 core wire and a D2 core wire, the C2 core wire and the C3 core wire are twisted to form a twisted core wire, the a core wire 111, the B core wire 112, the ground wire 115, the D1 core wire, and the D2 core wire together form a circle around the twisted core wire, the C1 core wire is disposed between the D1 core wire and the D2 core wire, and the filler 116 is filled in a gap in the inner core layer 110; the a-core 111 includes an optical fiber layer 1111 and an a-jacket layer 1112, and the a-jacket layer 1112 is coated outside the optical fiber layer 1111.

It should be noted that, the utility model replaces the multi-group high-speed pair of the prior art with the optical fiber layer 1111 through the a core wire 111, the optical fiber layer 1111 is composed of a plurality of optical fibers, and has the characteristics of light weight, small diameter and small occupied space, and also has superior bending performance and good lateral pressure resistance, and is convenient for construction; the A core wire 111, the B core wire 112, the C core wire 113, the D core wire 114 and the ground wire 115 are twisted, and the filling body 116 is filled in the gap in the inner core layer 110, so that the structural stability of the photoelectric composite cable 10 can be improved, the tensile and compressive capabilities can be enhanced, the bending performance and the lateral pressure resistance can be improved, the signal transmission stability can be improved, and the low-speed signal or signal loss caused by lateral pressure and swing can be reduced.

Further, the optical fiber layer 1111 is composed of a plurality of optical fibers, for example, the optical fiber layer 1111 is composed of 3, 4, 5, 6, 7, 8, 9, 10, etc. optical fibers. The optical fiber has a diameter of 50 to 100 microns, for example, the optical fiber has a diameter of 50, 60, 70, 80, 90, or 100 microns.

Further, the a sheath layer 1112 is a PVC sheath layer or an LSZH sheath layer. That is, the material of the a sheath layer 1112 is PVC (polyvinyl chloride) or LSZH (halogen-free low-smoke flame retardant material).

Further, the B core wire 112 includes a twisted pair 1121 and an inner wrapping tape 1122, the inner wrapping tape 1122 wraps the twisted pair 1121, the twisted pair 1121 is formed by twisting two signal wires, the signal wire 1121 includes a B conductor and a B sheathing layer, the B sheathing layer wraps the B conductor, the B conductor is a metal conductor such as gold, silver, copper, nickel, and the like, the B sheathing layer is made of materials such as PA, PBT, PP, ABS, PVC, and the like, and the inner wrapping tape 1122 is an existing wrapping tape such as non-woven fabric, plastic, metal, and the like. Thus, the B-core wire 112 is mainly used for transmitting USB2.0 signals, and the twisted pair wire 1121 is used as a twisted pair structure by a conventional process, so as to reduce low-speed signals or signal loss caused by lateral pressure and swing;

further, the C1 heart yearn includes C conductor 1131 and C restrictive coating 1132, C restrictive coating 1132 cladding is in outside the C conductor 1131, C conductor 1131 is metallic conductor such as gold, silver, copper, nickel, and C restrictive coating 1132 is materials such as PA, PBT, PP, ABS, PVC. The structures of the C2 core wire and the C3 core wire are the same as the structure of the C1 core wire. The C core wire is mainly used as a control circuit.

Further, D1 heart yearn includes D conductor 1141 and D restrictive coating 1142, D restrictive coating 1142 cladding is in outside the D conductor 1141, D conductor 1141 is metallic conductor such as gold, silver, copper, nickel, and D restrictive coating 1142 is materials such as PA, PBT, PP, ABS, PVC. The structure of the D2 core wire is the same as that of the D1 core wire. The D core wire is mainly used as a control circuit.

Further, the optical-electrical composite cable 10 further includes a first wrapping tape 120, the first wrapping tape 120 wraps the inner core layer 110, the filler 116 is filled in a gap between the inner core layer 110 and the first wrapping tape 120, and the first wrapping tape 120 is a PP (polypropylene, chinese name) solid tape. Therefore, the structural stability of the photoelectric composite cable 10 can be improved through the first wrapping tape 120, and the photoelectric composite cable 10 can be self-protected to avoid being damaged by static electricity when the external environment has static electricity.

Further, the optical-electrical composite cable 10 further includes a second wrapping tape 130, the second wrapping tape 130 is wrapped outside the first wrapping tape 120, and the second wrapping tape 130 is an aluminum foil tape. In this way, the second wrapping tape 130 increases the shielding effect on the inner core layer 110, and simultaneously plays a role in shielding signals from leaking and fixing the structure. Meanwhile, the contact distance between the woven layer and the inner core layer 110 is increased by the first wrapping tape 120 and the second wrapping tape 130, so that the optical-electrical composite cable 10 can be self-protected and prevented from being damaged by static electricity when static electricity exists outside.

Further, the photoelectric composite cable 10 further includes a braid 140, the braid 140 is wrapped outside the second wrapping tape 130, the density of the braid 140 is not less than 90%, the braid 140 is a tin-plated copper braid 140, and the resistance of the braid 140 is less than 50 Ω. Therefore, the braid layer 140 can prevent electromagnetic interference and protect the machine, which is helpful for the photoelectric composite cable 10 to meet the 6KV ESD experimental test.

Further, the optical-electrical composite cable 10 further includes a covering layer 150, the covering layer 150 covers the braid 140, and the covering layer 150 is a high-elasticity TPU covering layer 150. Thus, the outer layer 150 contributes to increase in resilience of the photoelectric composite cable 10, and to satisfying the side pressure of 500N, the bending cycle of 500 times, and the electrical performance of the cable being normal.

And (3) experimental test: the photoelectric composite cable 10 comprises an inner core layer 110, a first wrapping tape 120, a second wrapping tape 130, a braided layer 140 and an outer covering layer 150, the structure is shown in fig. 1, and electrical performance and physical performance tests are carried out, and as a result: 1. passing a high-performance 6KV ESD electrostatic discharge test; 2. the electrical performance of the optical fiber and the copper cable is tested to be normal by meeting the requirements of side pressure of 500N and bending cycle of 500 times.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the concept of the present invention, several variations and modifications can be made, which all fall within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The photoelectric composite cable is characterized by comprising an inner core layer, wherein the inner core layer comprises an A core wire, a B core wire, a C core wire, a D core wire, a ground wire and a filling body, the C core wire comprises a C1 core wire, a C2 core wire and a C3 core wire, the D core wire comprises a D1 core wire and a D2 core wire, the C2 core wire and the C3 core wire are twisted to form a twisted core wire, the A core wire, the B core wire, the ground wire, the D1 core wire and the D2 core wire jointly surround the twisted core wire to form a circle, the C1 core wire is arranged between the D1 core wire and the D2 core wire, and the filling body is filled in a gap in the inner core layer; the A core wire comprises an optical fiber layer and an A sheath layer, and the A sheath layer is coated outside the optical fiber layer.

2. The optical-electrical composite cable of claim 1, wherein the optical fiber layer is composed of a plurality of optical fibers, and the optical fibers have a diameter of 50 to 100 μm.

3. The opto-electrical composite cable according to claim 1, wherein the a-jacket layer is a PVC jacket layer or a LSZH jacket layer.

4. The opto-electrical composite cable according to claim 1, wherein the B-core wire comprises a twisted pair and an inner wrapping tape, the inner wrapping tape covers the twisted pair, the twisted pair is formed by twisting two signal wires, the signal wires comprise a B-conductor and a B-jacket layer, and the B-jacket layer covers the B-conductor.

5. The optical-electrical composite cable according to claim 1, wherein the C1 core wire comprises a C conductor and a C sheath layer, the C sheath layer is coated outside the C conductor, and the C2 core wire and the C3 core wire have the same structure as the C1 core wire.

6. The optical-electrical composite cable according to claim 1, wherein the D1 core wire comprises a D conductor and a D sheath layer, the D sheath layer is coated outside the D conductor, and the D2 core wire has the same structure as the D1 core wire.

7. The photoelectric composite cable according to any one of claims 1 to 6, further comprising a first wrapping tape, wherein the first wrapping tape is wrapped outside the inner core layer, the filler is filled in a gap between the inner core layer and the first wrapping tape, and the first wrapping tape is a PP solid tape.

8. The optical-electrical composite cable of claim 7, further comprising a second tape, the second tape being wrapped outside the first tape, the second tape being an aluminum foil tape.

9. The optical-electrical composite cable according to claim 8, further comprising a braid coated outside the second outer sheath, wherein the braid is a tin-plated copper braid, the density of the braid is greater than or equal to 90%, and the resistance of the braid is less than 50 Ω.

10. The optical-electrical composite cable of claim 9, further comprising a topcoat that covers the braided layer, the topcoat being a TPU topcoat.