Light photoelectric composite cable

Abstract

The utility model discloses a light photoelectric composite cable, and specifically relates to the photoelectric composite cable technology field, the light photoelectric composite cable comprises a core light unit, a grounding unit and two conductive units, each conductive unit comprises a conductor and a first insulating layer arranged outside the conductor, and the core light unit comprises an optical fiber and a second insulating layer arranged outside the optical fiber. The core light unit, the grounding unit and the two conductive units are sleeved with a metal shielding layer, the metal shielding layer is sleeved with an outer protective sleeve, a plurality of buffer strips are arranged between the outer protective sleeve and the metal shielding layer, and a plurality of buffer layers are fixedly arranged on the outer side of the outer protective sleeve. According to the utility model, the protection performance of the conductive unit, the core light unit and the grounding unit is improved through the buffer layer, the buffer strip and the outer protective sleeve, and the insulating layer has good wear resistance, cutting resistance and puncture resistance, so that even if the outer protective sleeve and the metal shielding layer are damaged, the conductor, the optical fiber and the grounding conductor are not exposed, and the service life of the cable is prolonged. Electric shock accidents are effectively prevented, and safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of photoelectric composite cables, in particular to a light photoelectric composite cable. Background Art

[0002] There is a need for optoelectronic composite cables for communication on drones. Optoelectronic composite is a cable that integrates optical fiber and transmission line, integrating the functions of optical fiber communication and power transmission. Compared with single-function transmission cables, optical fiber composite cables have the characteristics of high-reliability data transmission, low price, and convenient connection. It can solve the problems of broadband access, equipment power consumption, and signal transmission, avoid secondary wiring, and reduce engineering costs. For example, an optoelectronic composite cable with prior art publication number CN220065263U is composed of an optical unit and an electrical unit. The optical signal transmitted by the optical unit has a large transmission capacity and high efficiency, which meets the signal transmission needs. An optoelectronic composite cable with publication number CN201732631U is a composite of a conductor and an optical unit, integrating optical fiber and power transmission and distribution cables.

[0003] However, the above-mentioned prior art only protects the conductor and optical fiber inside by wrapping a sheath on the outermost layer. The sheath material is usually rubber, which has poor buffering performance against external impact loads. In addition, the outer sheath is easily damaged, resulting in exposure of the internal conductor and optical fiber, which is prone to accidents of electric shock to personnel, and has low safety. Utility Model Content

[0004] The purpose of the utility model is to provide a lightweight optoelectronic composite cable, which improves the protection performance of the conductive unit, the core optical unit and the grounding unit through a buffer layer, a buffer strip and an outer protective sheath, thereby improving the reliability and safety of power and signal transmission. At the same time, the insulating layer has good wear resistance, cutting resistance and puncture resistance. Even after the outer protective sheath and the metal shielding layer are damaged, the conductor, the optical fiber and the grounding conductor will not be exposed, thereby effectively preventing electric shock accidents and improving safety.

[0005] In order to achieve the above-mentioned object, the utility model provides the following technical solutions: a light-weight optoelectronic composite cable, comprising a core optical unit, a grounding unit and two sets of conductive units;

[0006] The conductive unit comprises a conductor and a first insulating layer arranged outside the conductor;

[0007] The core light unit comprises an optical fiber and a second insulating layer arranged outside the optical fiber;

[0008] The core light unit, the grounding unit and the two groups of conductive units are covered with metal shielding layers on the outside, and the metal shielding layers are covered with an outer protective sleeve on the outside to protect the conductive unit, the core light unit and the grounding unit.

[0009] A plurality of buffer strips are arranged between the outer protective sleeve and the metal shielding layer, and a plurality of buffer layers are fixedly arranged on the outside of the outer protective sleeve, so as to improve the protection performance of the conductive unit, the core light unit and the grounding unit, and improve the reliability and safety of power and signal transmission.

[0010] Preferably, the first insulating layer and the second insulating layer are both woven from aramid fiber, which is a new type of high-tech synthetic fiber with excellent properties such as soft texture, low density, high strength, high modulus, acid and alkali resistance, light weight, etc. It is resistant to high temperatures and can be used for more than 10 years at 220°C. It does not decompose or melt at a temperature of 560°C. Its strength is 5-6 times that of steel wire, while its weight is only about 1 / 5 of that of steel wire, its toughness is 2 times that of steel wire, and its modulus is 2-3 times that of steel wire or glass fiber. Aramid fiber also has good insulation, aging resistance, wear resistance, cut resistance and puncture resistance, and has a long life cycle.

[0011] Preferably, the grounding unit comprises a grounding conductor and a third insulating layer arranged outside the grounding conductor, and the third insulating layer is woven from aramid fibers.

[0012] Preferably, the metal shielding layer is woven from at least one of tinned copper wire, aluminum alloy wire, copper strip, aluminum strip, and steel strip.

[0013] Preferably, the outer protective sleeve is woven from ceramic fibers and glass fibers;

[0014] Ceramic fiber is an inorganic refractory fiber with alumina, aluminum silicate, etc. as the main components. It has excellent high temperature resistance and chemical stability, and can withstand temperatures up to 1600°C. Due to its fine and uniform fiber structure, it has excellent thermal insulation and seismic performance. At the same time, ceramic fiber also has low heat capacity, low thermal conductivity and excellent corrosion resistance, so it is widely used in high temperature kilns, heat treatment equipment, aerospace and other fields;

[0015] Glass fiber is a fiber made of glass. It has the characteristics of light weight, high strength, high elastic modulus, etc. It also has good high temperature resistance and chemical corrosion resistance.

[0016] Preferably, the buffer layer and the buffer strip are both made of foam plastic, which is a type of polymer material formed by a large number of gas micropores dispersed in solid plastic. The foam plastic is covered with countless interconnected or unconnected micropores, which significantly reduces the apparent density of the plastic. It is light in weight, has excellent impact and vibration energy absorption, and can absorb impact loads.

[0017] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0018] 1. The first insulating layer, the second insulating layer and the third insulating layer are all woven from aramid fibers. Aramid fibers have excellent properties such as soft texture, low density, high strength, high modulus, acid and alkali resistance, and light weight. They can protect conductors, optical fibers and grounding conductors. At the same time, aramid fibers have excellent insulation properties. As an insulating layer, they can effectively prevent short circuits between conductors, optical fibers and grounding conductors and external media or other conductors, thereby ensuring the safe operation of the composite cable.

[0019] 2. If the outer protective sleeve and metal shielding layer are damaged, the insulation layer outside the conductor, optical fiber and grounding conductor has good wear resistance, cutting resistance and puncture resistance, so it can prevent the insulation layer from being damaged and causing the conductor, optical fiber and grounding conductor to be exposed, thereby effectively preventing electric shock accidents and improving safety;

[0020] 3. The outer protective sheath woven from ceramic fiber and glass fiber has the advantages of high strength, high temperature resistance, fire resistance and light weight, and has high protection performance for the conductive unit, core light unit and grounding unit;

[0021] 4. A plurality of buffer strips made of foam plastic are arranged between the outer protective cover and the metal shielding layer, and a plurality of buffer layers made of foam plastic are arranged on the outside of the outer protective cover, which can absorb impact loads and vibration energy, improve the protection performance of the conductive unit, the core light unit and the grounding unit, and thus improve the reliability and safety of power and signal transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0023] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0024] Figure 2 It is a schematic diagram of the overall structure of the utility model;

[0025] Figure 3 It is a cross-sectional view of the utility model;

[0026] Figure 4 This is a structural diagram of the outer protective sleeve and buffer layer of the utility model;

[0027] Figure 5 This is a structural diagram of the outer protective sleeve of the utility model.

[0028] Description of reference numerals:

[0029] 100 conductive unit, 101 conductor, 102 first insulating layer;

[0030] 200 core optical unit, 201 optical fiber, 202 second insulating layer;

[0031] 300 grounding unit, 301 grounding conductor, 302 third insulating layer;

[0032] 400 metal shielding layer;

[0033] 500 outer protective cover, 501 ceramic fiber, 502 glass fiber;

[0034] 600 buffer layer, 700 buffer strip. DETAILED DESCRIPTION

[0035] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0036] The utility model provides Figure 1-3 The light optoelectronic composite cable shown includes a core optical unit 200, a grounding unit 300 and two sets of conductive units 100;

[0037] The conductive unit 100 includes a conductor 101 and a first insulating layer 102 disposed outside the conductor 101 for conducting electricity;

[0038] The core optical unit 200 includes an optical fiber 201 and a second insulating layer 202 disposed outside the optical fiber 201, and is used to transmit signals;

[0039] The grounding unit 300 includes a grounding conductor 301 and a third insulating layer 302 disposed outside the grounding conductor 301 for grounding to improve safety.

[0040] The first insulating layer 102, the second insulating layer 202 and the third insulating layer 302 are all woven from aramid fiber. Aramid fiber is a new type of high-tech synthetic fiber with excellent properties such as soft texture, low density, high strength, high modulus, acid and alkali resistance, and light weight. It can protect the conductor 101, the optical fiber 201 and the grounding conductor 301. At the same time, aramid fiber has excellent insulation properties and can be used as an insulating layer for the conductor 101, the optical fiber 201 and the grounding conductor 301 to prevent the conductor 101, the optical fiber 201 and the grounding conductor 301 from short-circuiting with external media or other conductors, thereby ensuring the safe operation of the composite cable.

[0041] Next, a metal shielding layer 400 is sleeved on the outside of the core light unit 200, the grounding unit 300 and the two groups of conductive units 100. The metal shielding layer 400 is woven from at least one of tinned copper wire, aluminum alloy wire, copper tape, aluminum tape and steel tape, and has an electromagnetic field shielding function to avoid affecting the operation of the composite cable and the surrounding components of the composite cable.

[0042] Moreover, if Figure 1 , 2 As shown in , 3 and 5, an outer protective sleeve 500 is provided on the outer side of the metal shielding layer 400, and the outer protective sleeve 500 is woven from ceramic fibers 501 and glass fibers 502;

[0043] The glass fiber 502 has the characteristics of light weight, high strength, and high elastic modulus. The ceramic fiber 501 is an inorganic refractory fiber with alumina, aluminum silicate, etc. as the main components, and has excellent high temperature resistance and chemical stability. Therefore, the outer protective sheath 500 woven from the ceramic fiber 501 and the glass fiber 502 has the advantages of high strength, high temperature resistance, fire resistance, and light weight, thereby having high protection performance for the internal structure of the outer protective sheath 500.

[0044] like Figure 1 , 2 As shown in , 3 and 4, a plurality of buffer strips 700 are provided between the outer protective sleeve 500 and the metal shielding layer 400, a plurality of buffer layers 600 are fixedly provided on the outer side of the outer protective sleeve 500, the buffer layers 600 are pressed and fixed on the outer side of the outer protective sleeve 500, and the buffer layers 600 and the buffer strips 700 are both made of foam plastic;

[0045] Foam plastics are a type of polymer material formed by a large number of gas micropores dispersed in solid plastics. The whole is covered with countless interconnected or unconnected micropores, which significantly reduces the apparent density. Therefore, the composite cable has the advantage of being lightweight. At the same time, the foam plastics can absorb impact loads, vibration energy, etc.

[0046] Therefore, the buffer layer 600 on the outside of the outer protective sleeve 500 is helpful in buffering external forces. At the same time, the buffer strip 700 on the outside of the conductive unit 100, the core light unit 200 and the grounding unit 300 can further buffer external forces. At the same time, the ceramic fiber 501 also has excellent shock resistance, thereby improving the protection performance of the conductive unit 100, the core light unit 200 and the grounding unit 300.

[0047] In addition, if the outer protective sleeve 500 and the metal shielding layer 400 are damaged, the conductive unit 100, the core light unit 200 and the grounding unit 300 are exposed. Since the aramid fiber in the insulating layer outside the conductor 101, the optical fiber 201 and the grounding conductor 301 has excellent wear resistance, cut resistance and puncture resistance, it is possible to prevent the insulating layer from being damaged and causing the conductor 101, the optical fiber 201 and the grounding conductor 301 to be exposed, thereby effectively preventing electric shock accidents and improving safety.

[0048] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. Lightweight photoelectric composite cable, characterized by: It comprises a core light unit (200), a grounding unit (300) and two groups of conductive units (100); The conductive unit (100) comprises a conductor (101) and a first insulating layer (102) arranged outside the conductor (101); The core optical unit (200) comprises an optical fiber (201) and a second insulating layer (202) arranged outside the optical fiber (201); The core light unit (200), the grounding unit (300) and the two groups of conductive units (100) are sheathed with a metal shielding layer (400) on the outside, and the metal shielding layer (400) is sheathed with an outer protective sleeve (500) on the outside; A plurality of buffer strips (700) are provided between the outer protective sleeve (500) and the metal shielding layer (400), and a plurality of buffer layers (600) are fixedly provided on the outside of the outer protective sleeve (500).

2. The light optical-electric composite cable according to claim 1, characterized in that: The first insulating layer (102) and the second insulating layer (202) are both woven from aramid fibers.

3. The light optical-electric composite cable according to claim 1, characterized in that: The grounding unit (300) comprises a grounding conductor (301) and a third insulating layer (302) arranged outside the grounding conductor (301), wherein the third insulating layer (302) is woven from aramid fibers.

4. The light optical-electric composite cable according to claim 1, characterized in that: The metal shielding layer (400) is woven from at least one of tinned copper wires, aluminum alloy wires, copper strips, aluminum strips, and steel strips.

5. The light optical-electric composite cable according to claim 1, characterized in that: The outer protective sleeve (500) is woven from ceramic fibers (501) and glass fibers (502).

6. The light optical-electric composite cable according to claim 1, characterized in that: The buffer layer (600) and the buffer strip (700) are both made of foam plastic.

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