Flexible intermediate-frequency photoelectric composite cable

Abstract

The utility model discloses a flexible intermediate-frequency photoelectric composite cable, which comprises three power insulation wire cores and is characterized in that the three power insulation wire cores and one signal cable core are twisted in a cabling wrapping layer, and an outer filling layer is filled between the power insulation wire cores and the cabling wrapping layer and between the signal cable core and the cabling wrapping layer. And a sheath layer is sleeved outside the cabling wrapping layer. The flexible intermediate-frequency photoelectric composite cable is compact in design, saves space, and is smaller in outer diameter, lighter in weight and smaller in occupied space. Therefore, the device is particularly useful in network construction, and can effectively solve the problem of power utilization of equipment. Generally, the problem which can be solved by a plurality of cables can be solved by one composite cable at present, so that repeated laying of power supply lines is avoided, and the construction process is greatly simplified.

Description

Technical Field

[0001] The utility model relates to the technical field of composite cable equipment, in particular to a flexible medium-frequency photoelectric composite cable. Background Art

[0002] In aviation and large shipboard power systems, shipboard generators must maintain high power output while maintaining a compact size and lightweight, necessitating higher power frequency. Consequently, shipboard electrical equipment and aircraft-related power systems generally utilize 400Hz power supplies to accommodate this high-frequency power supply environment. However, this high-frequency power supply system places higher demands on the technical performance of the supporting cables.

[0003] In situations where both signal and power transmission are required, traditional cable solutions often struggle to provide excellent shielding performance and good environmental adaptability. To overcome these challenges, optoelectronic composite cables have emerged. They integrate optical fiber and copper transmission wires, providing not only broadband access and device power, but also efficient signal transmission.

[0004] In response to the above problems, it is urgent to carry out innovative design based on the original composite cable. Utility Model Content

[0005] The technical solution of the present utility model aims at the technical problem that the existing technical solution is too single, and provides a flexible medium-frequency optoelectronic composite cable with a solution that is significantly different from the existing technology to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a flexible medium-frequency optoelectronic composite cable, comprising three power insulating cores, characterized in that three power insulating cores and one signal cable core are twisted in the cabling sheath, and an outer filling layer is filled between the power insulating cores and the signal cable core and the cabling sheath, and the cabling sheath is covered with a sheath layer.

[0007] Preferably, the power insulated core includes a first conductor and a first insulation layer, and each of the first conductors is covered with an insulation layer.

[0008] Preferably, the signal cable core includes a control insulation core, a second conductor, a second insulation layer, an optical fiber insulation core, an optical fiber, a third insulation layer, an inner filling layer, a sheathing layer, and an overall shielding layer. The signal cable core includes two control insulation cores and one optical fiber insulation core, and the control insulation core and the optical fiber insulation core are covered with a sheathing layer, and the inner filling layer is filled between the control insulation core and the optical fiber insulation core and the sheathing layer. The sheathing layer is covered with an overall shielding layer, and the signal cable core is twisted into two control insulation cores and one optical fiber insulation core by cabling.

[0009] Preferably, the control insulating core is composed of a second conductor covered with a second insulating layer.

[0010] Preferably, the optical fiber insulation core is composed of an optical fiber covered with a third insulation layer.

[0011] Preferably, the first conductor is made of copper monofilament bundles with a monofilament diameter of 0.19-0.20 mm, and the second conductor cross-section is 25-95 mm 2 .

[0012] Preferably, the cross section of the second conductor is 0.75-4 mm 2 .

[0013] Preferably, the insulating material of the first insulating layer, the second insulating layer and the third insulating layer is soft and heat-resistant polyvinyl chloride.

[0014] Preferably, the overall shielding layer is woven from copper wires, and the weaving density is not less than 85%.

[0015] Preferably, the sheath layer is made of soft and heat-resistant polyvinyl chloride material.

[0016] Compared with the existing technology, the beneficial effects of the present invention are as follows: the flexible medium-frequency optoelectronic composite cable, (1) compact design, saves space: the cable has a smaller outer diameter, is lighter, and takes up less space. This makes it particularly useful in network construction, effectively solving the problem of equipment power consumption. Under normal circumstances, the problem that requires multiple cables can now be replaced by a single composite cable, thus avoiding the repeated laying of power supply lines and greatly simplifying the construction process.

[0017] (2) Excellent bending performance and easy construction: This cable has excellent bending performance, which makes it more convenient during construction and can easily adapt to various complex wiring environments, reducing construction difficulty and time.

[0018] (3) High cost-effectiveness: In terms of procurement and construction, the cost of this cable is lower and the expenses are less, which significantly improves the cost-effectiveness of the product. This not only reduces the financial burden on users, but also makes this product more competitive in the market.

[0019] (4) Multifunctional transmission and high adaptability: This cable can provide multiple transmission technologies at the same time, has high adaptability to equipment, and is highly scalable. This enables the product to be widely used in different fields and scenarios, with wide applicability.

[0020] (5) Excellent shielding performance, suitable for high-frequency environments: High-density copper wire braiding is used on the outside of the communication and data transmission cores to provide excellent shielding performance. This is particularly important because this shielding design makes the cable particularly suitable for use in high-frequency environments, effectively reducing electromagnetic interference and ensuring stable signal transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the front view structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the cross-sectional structure of the power insulated wire core of the utility model.

[0023] In the figure: 1. Power insulated core; 101. First conductor; 102. First insulation layer; 2. Signal cable core; 201. Control insulated core; 2011. Second conductor; 2012. Second insulation layer; 202. Optical fiber insulated core; 2021. Optical fiber; 2022. Third insulation layer; 203. Inner filling layer; 204. Wrapping layer; 205. Overall shielding layer; 3. Outer filling layer; 4. Cabling wrapping layer; 5. Sheath layer. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] See also Figure 1-2 The utility model provides a technical solution: a flexible medium-frequency optoelectronic composite cable, comprising three power insulation cores 1, a first conductor 101, a first insulation layer 102, a signal cable core 2, a control insulation core 201, a second conductor 2011, a second insulation layer 2012, an optical fiber insulation core 202, an optical fiber 2021, a third insulation layer 2022, an inner filling layer 203, a wrapping layer 204, a general shielding layer 205, an outer filling layer 3, a cabling wrapping layer 4, and a sheath layer 5. Three power insulation cores 1 and one signal cable core 2 are twisted in the cabling wrapping layer 4, and the outer filling layer 3 is filled between the power insulation core 1 and the signal cable core 2 and the cabling wrapping layer 4. The cabling wrapping layer 4 is covered with a sheath layer 5.

[0026] The power insulated wire core 1 includes a first conductor 101 and a first insulating layer 102 , and each first conductor 101 is covered with an insulating layer 102 .

[0027] The signal cable core 2 includes a control insulation core 201, a second conductor 2011, a second insulation layer 2012, an optical fiber insulation core 202, an optical fiber 2021, a third insulation layer 2022, an inner filling layer 203, a cladding layer 204, and a general shielding layer 205. The signal cable core 2 includes two control insulation cores 201 and one optical fiber insulation core 202, and the control insulation core 201 and the optical fiber insulation core 202 are covered with a cladding layer 204, and the inner filling layer 203 is filled between the control insulation core 201 and the optical fiber insulation core 202 and the cladding layer 204. The cladding layer 204 is covered with a general shielding layer 205. The signal cable core 2 is composed of two control insulation cores 201 and one optical fiber insulation core 202 twisted into a cable.

[0028] The control insulated core 201 is composed of a second conductor 2011 covered with a second insulating layer 2012 .

[0029] The optical fiber insulation core 202 is composed of an optical fiber 2021 covered with a third insulation layer 2022.

[0030] The first conductor 101 is made of copper monofilament bundles with a monofilament diameter of 0.19-0.20 mm, and the cross-section of the second conductor 2011 is 25-95 mm. 2 .

[0031] The cross section of the second conductor 2011 is 0.75-4 mm 2 .

[0032] The insulating material of the first insulating layer 102 , the second insulating layer 2012 and the third insulating layer 2022 is soft and heat-resistant polyvinyl chloride.

[0033] The overall shielding layer 205 is woven from copper wires, with a weaving density of not less than 85%.

[0034] The sheath layer 5 is made of soft, heat-resistant polyvinyl chloride material.

[0035] Three power insulated cores each include a first conductor and a first insulation layer; the first conductor adopts a regular twisted structure, the first insulation layer is extruded by an insulation extruder, and the insulation material is soft and heat-resistant polyvinyl chloride.

[0036] Two control insulated wire cores, both of which include a second conductor and a second insulating layer; the second conductor adopts a regular twisted structure, the second insulating layer is extruded by an insulating extruder, and the insulating material is soft and heat-resistant polyvinyl chloride.

[0037] An optical fiber insulation core comprises an optical fiber and a third insulation layer. The optical fiber adopts a disposable bundle twisting structure, and the third insulation layer is extruded by an insulation extruder. The insulation material is soft and heat-resistant polyvinyl chloride.

[0038] Two insulated control wires and one insulated optical fiber core are twisted together to form a signal cable core using a cabling machine. The cable core wrapping layer adopts a single layer of overlapping polyester tape, and the outer layer of the wrapping layer is braided copper wire for overall shielding. The copper wire diameter is 0.12-0.15mm, and the braiding density is not less than 85%. The inner filling layer of the cable core is PP filling rope. Three insulated power wires and the signal cable core are further twisted together to form a cable core. The outer wrapping layer adopts a double-layer overlapping wrapping structure of PP tape or non-woven fabric, and the inner filling layer of the cable core is PP filling rope. The outer wrapping layer is extruded with a soft, heat-resistant polyvinyl chloride sheath.

[0039] The specific operation mode of the utility model is as follows:

[0040] In smart grids such as aviation and ship power control systems, there are generally special requirements such as small size and light weight. Therefore, the frequency must be increased to meet the power requirements. By adopting a combined structure of three power insulation cores + two control insulation cores + one optical fiber insulation core, the laying space can be significantly utilized, and the optical fiber and power transmission copper wire can be integrated into one to solve the comprehensive problems of broadband access, equipment power consumption, and signal transmission. A high-density copper wire braiding structure (braiding density of not less than 85%) is used outside the cable core of the two control insulation cores and one optical fiber insulation core to avoid signal interference of the control core due to high-frequency power transmission. At the same time, the power insulation core, control insulation core, optical fiber insulation core and sheath layer are all made of extruded soft heat-resistant polyvinyl chloride material, which improves the overall bending resistance and has high temperature resistance of 90°C, meeting the requirements of 400Hz high-frequency system.

[0041] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A flexible medium-frequency optoelectronic composite cable comprising three power insulating cores (1) and a cabling sheath (4), characterized in that: Three power insulation wire cores (1) and one signal cable core (2) are twisted inside the cabling wrapping layer (4), and an outer filling layer (3) is filled between the power insulation wire core (1) and the signal cable core (2) and the cabling wrapping layer (4), and a sheath layer (5) is provided on the outer cover of the cabling wrapping layer (4).

2. The flexible medium-frequency optoelectronic composite cable according to claim 1, characterized in that: The power insulated wire core (1) comprises a first conductor (101) and a first insulating layer (102), and each first conductor (101) is coated with the first insulating layer (102).

3. The flexible medium-frequency optoelectronic composite cable according to claim 2, characterized in that: The signal cable core (2) comprises a control insulation core (201), a second conductor (2011), a second insulation layer (2012), an optical fiber insulation core (202), an optical fiber (2021), a third insulation layer (2022), an inner filling layer (203), a cladding layer (204), and a general shielding layer (205). The signal cable core (2) comprises two control insulation cores (201) and one optical fiber insulation core (202), and the control insulation core (201) and the optical fiber insulation core (202) are covered with a cladding layer (204). The inner filling layer (203) is filled between the control insulation core (201) and the optical fiber insulation core (202) and the cladding layer (204). The cladding layer (204) is provided with a general shielding layer (205). The signal cable core (2) is formed by twisting the two control insulation cores (201) and the optical fiber insulation core (202) into a cable.

4. The flexible medium-frequency optoelectronic composite cable according to claim 3, characterized in that: The control insulation core (201) is composed of a second conductor (2011) covered with a second insulation layer (2012).

5. The flexible medium-frequency optoelectronic composite cable according to claim 3, characterized in that: The optical fiber insulation core (202) is composed of an optical fiber (2021) coated with a third insulation layer (2022).

6. The flexible medium-frequency optoelectronic composite cable according to claim 2, characterized in that: The first conductor (101) is made of copper monofilament bundles, the diameter of the monofilament is 0.19-0.20 mm, and the cross-section of the second conductor (2011) is 25-95 mm. 2 .

7. The flexible medium-frequency optoelectronic composite cable according to claim 4, characterized in that: The cross section of the second conductor (2011) is 0.75-4 mm 2 .

8. The flexible medium-frequency optoelectronic composite cable according to claim 3, characterized in that: The insulating materials of the first insulating layer (102), the second insulating layer (2012) and the third insulating layer (2022) are soft, heat-resistant polyvinyl chloride.

9. The flexible medium-frequency optoelectronic composite cable according to claim 3, characterized in that: The overall shielding layer (205) is woven from copper wires, with a weaving density of not less than 85%.

10. The flexible medium-frequency optoelectronic composite cable according to claim 1, characterized in that: The sheath layer (5) is made of soft, heat-resistant polyvinyl chloride material.

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