A high-voltage shore power dedicated photoelectric composite flexible cable

Abstract

The application discloses a kind of high-voltage shore power special photoelectric composite flexible cable, belong to the technical field of cable, including cavity photoelectric transmission mechanism, cavity photoelectric transmission mechanism includes flame-retardant inner sheath and high-bulk glass fiber belt, high-bulk glass fiber belt both sides of outer wall are provided with iron oxide red silica gel layer, and high-bulk glass fiber belt will flame-retardant inner sheath inner cavity be divided into electric unit cavity and light unit cavity, two electric unit line groups are arranged in electric unit cavity, and light unit line group is arranged in light unit cavity, and heat dissipation protection mechanism is arranged outside flame-retardant inner sheath, by the application, realize the light unit line group and electric unit line group are divided and open arrangement, reach the purpose of heat insulation and heat dissipation, avoid the large amount of heat generated when electric unit line group high-power transmission, affect the data transmission of light unit line group, prevent in the case that temperature gradually increases in today's summer, reach the temperature upper limit that optical fiber can withstand, reduce the probability of optical cable damage.

Description

TECHNICAL FIELD

[0001] The present application mainly relates to the technical field of cables, in particular to a high-voltage shore power special optical-electric composite flexible cable. BACKGROUND

[0002] A cable is a device for transmitting electric power or signals, usually composed of several or several groups of wires, which are twisted together like a rope, with each group of wires insulated from each other and often twisted around a central one, and the entire outside is covered with a highly insulating cover. The cable has the characteristics of internal power transmission and external insulation. The optical cable conductor is copper-free and is used for signal transmission. The optical-electric composite cable is a composite of optical cable and cable, which can be powered and networked by laying one line, greatly simplifying the construction amount and saving costs, so that the optical-electric composite cable has been loved by the public. However, some optical-electric composite cables are hung high on the electric pole, especially in recent years, the temperature is getting higher and higher, and the internal optical cable has been damaged several times. If the power of the electrical unit in the optical-electric composite cable is too large, a large amount of heat will be generated, which will affect the information transmission of the optical cable when the heat is too high, and even cause damage, reducing the experience of people using the network.

[0003] In the existing optical-electric composite flexible cable, for example, the technical structure of the application number CN202011019583.4 application document, including a central reinforcing member, a group of optical units and two groups of electrical units are arranged outside the central reinforcing member, the optical units and the electrical units are distributed at equal angles around the central reinforcing member, the optical units and the electrical units are provided with a filling core, three groups of the filling core are distributed at equal angles around the central reinforcing member, the optical units, the electrical units and the filling core are wrapped with a shielding layer, the shielding layer is wrapped with an enhancement layer outside, the enhancement layer is wrapped with an outer sheath outside, and the optical units, the electrical units, the filling core and the shielding layer are filled with a filling layer. Although this structure integrates optical fibers and power transmission copper wires, the optical fibers and the wires are in the same cavity. For this cable used in the high-voltage shore power system (composed of four parts: ground power distribution station, shore power connection box, connection cable car and ship power distribution device), the wire part is sometimes in a high-power state, generating a large amount of heat, which will affect the information transmission of the optical cable if the temperature is higher in summer. If the temperature exceeds 60 degrees Celsius, the arrangement of the optical cable crystal will change, further affecting the transmission of signals, causing irreversible damage to the optical cable. SUMMARY

[0004] The technical solution of the present application solves the technical problem that the existing technical solution is too single, and provides a significantly different solution from the existing technology. Specifically, the present application mainly provides a high-voltage shore power special optical-electric composite flexible cable to solve the technical problems raised in the background art.

[0005] The application solves the above technical problems by adopting the technical scheme of

[0006] A high-voltage shore power special photoelectric composite soft cable comprises a cavity photoelectric transmission mechanism, which comprises a flame-retardant inner sheath and a high-loft glass fiber belt in the central axis direction of the flame-retardant inner sheath, the outer wall of the high-loft glass fiber belt is provided with an iron oxide red silica gel layer on both sides, the high-loft glass fiber belt divides the inner cavity of the flame-retardant inner sheath into an electric unit cavity and a light unit cavity, two electric unit wire groups are arranged in the electric unit cavity, a light unit wire group is arranged in the light unit cavity, and a heat dissipation protection mechanism is arranged outside the flame-retardant inner sheath.

[0007] Each electric unit wire group in the cavity photoelectric transmission mechanism comprises four insulated single wires of different colors, and the four insulated single wires are twisted together, each of the four insulated single wires in each electric unit wire group is provided with a chlorinated polyethylene inner layer, the outer wall of each chlorinated polyethylene inner layer is provided with an insulating layer formed by extrusion, the outer wall of each insulating layer is provided with a high-strength polyester tape formed by overlapping and wrapping, and the outer wall of each high-strength polyester tape is provided with a heat dissipation protection sleeve.

[0008] Each light unit wire group comprises a loose tube and an optical fiber in the loose tube, the outer wall of each loose tube is provided with an oxygen barrier layer, each oxygen barrier layer is provided with a flame-retardant layer formed by extrusion, and the outer wall of each flame-retardant layer is provided with a polytetrafluoroethylene heat insulation layer.

[0009] The heat dissipation protection mechanism comprises a high-temperature-resistant silica gel heat dissipation layer, the high-temperature-resistant silica gel heat dissipation layer wraps the flame-retardant inner sheath, the outer wall of the high-temperature-resistant silica gel heat dissipation layer is provided with a copper wire metal mesh shielding layer formed by double-layer copper wire weaving, and the copper wire metal mesh shielding layer is provided with an aluminum tape heat dissipation armor formed by wrapping.

[0010] Further, the aluminum tape heat dissipation armor is provided with a halogen-free low-smoke flame-retardant outer sheath formed by extrusion.

[0011] Further, the weaving copper wire of the copper wire metal mesh shielding layer has a minimum diameter of 0.2 mm.

[0012] Further, the thicknesses of the high-temperature-resistant silica gel heat dissipation layer, the copper wire metal mesh shielding layer and the aluminum tape heat dissipation armor are the same.

[0013] Further, a fiber paste is arranged at the gap between each loose tube and optical fiber.

[0014] Further, a heat dissipation filler is arranged at the gap between the inner cavity of the flame-retardant inner sheath and the electric unit wire group and the light unit wire group.

[0015] Further, a non-metallic reinforcing rib is arranged at the round hole position of the high-loft glass fiber belt.

[0016] Compared with the prior art, the present application has the following advantages:

[0017] (1) The present application realizes the separation of the inner cavity of the flame-retardant inner sheath into an electrical unit cavity and an optical unit cavity, thereby separating the optical unit wire group and the electrical unit wire group, and the mutual cooperation between the high-loft glass fiber belt and the red iron oxide silica gel layer enhances the heat insulation performance between the electrical unit cavity and the optical unit cavity, avoids the influence of the large amount of heat generated by the high-power transmission of the electrical unit wire group on the data transmission of the optical unit wire group, changes the crystal arrangement of the optical fiber, prevents the temperature of the optical fiber from reaching the upper limit of the temperature that the optical fiber can withstand in the case of the gradually increasing temperature in summer, and the polytetrafluoroethylene heat insulation layer further improves the heat insulation performance of each optical unit wire group.

[0018] (2) The present application realizes the dissipation of heat in the electrical unit wire group into the electrical unit cavity, and the dissipation of heat in the electrical unit cavity and the optical unit cavity by the heat dissipation filler, and the mutual cooperation between the high-temperature resistant silica gel heat dissipation layer, the copper wire metal mesh shielding layer and the aluminum belt heat dissipation armor improves the compression resistance and heat dissipation effect of the cable, the copper wire metal mesh shielding layer improves the shielding performance of the cable, the shielding layer of copper wire weaving is also beneficial to the dissipation of heat, and the aluminum material used in the aluminum belt heat dissipation armor has good plasticity and heat conductivity, so that the overall heat dissipation effect of the cable is further improved, which is more suitable for high-voltage shore power system and reduces the probability of optical fiber damage.

[0019] The present application will be explained in detail below with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a schematic diagram of the overall structure of the present application;

[0021] Figure 2 is a schematic diagram of the cross section of the cable of the present application;

[0022] Figure 3 is a schematic diagram of the cross section of the cavity optical transmission mechanism of the present application;

[0023] Figure 4 is a schematic diagram of the cross section of the electrical unit wire group of the present application;

[0024] Figure 5 is a schematic diagram of the cross section of the optical unit wire group of the present application;

[0025] Figure 6 is a schematic diagram of the cross section of the heat dissipation protection mechanism of the present application.

[0026] BRIEF DESCRIPTION OF DRAWINGS:1, cavity photoelectric transmission mechanism;11, flame-retardant inner sheath;111, electric unit cavity;112, optical unit cavity;12, high-bulk glass fiber tape;121, iron oxide red silica gel layer;13, electric unit wire group;131, insulated single wire;132, chlorinated polyethylene inner layer;133, insulation layer;134, high-strength polyester tape;135, heat dissipation protective sleeve;14, optical unit wire group;141, loose tube;142, optical fiber;143, oxygen barrier layer;144, flame-retardant layer;145, polytetrafluoroethylene thermal insulation layer;146, fiber paste;15, heat dissipation filler;16, non-metallic reinforcing rib;2, heat dissipation protection mechanism;21, high-temperature-resistant silica gel heat dissipation layer;22, copper wire metal mesh shielding layer;23, aluminum tape heat dissipation armor;24, halogen-free low-smoke flame-retardant outer sheath. DETAILED DESCRIPTION

[0027] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the accompanying drawings, in which several embodiments of the present application are given, but the present application can be realized in different forms and is not limited to the embodiments described herein, on the contrary, these embodiments are provided to make the disclosure of the present application more thorough and comprehensive.

[0028] It should be noted that when an element is referred to as being "fixedly attached" to another element, it can be directly on the other element or there can be intervening elements, and when an element is referred to as being "connected" to another element, it can be directly connected to the other element or there can be intervening elements, the terms "vertical", "horizontal", "left", "right" and similar terms as used herein are for purposes of description only.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs, the terminology used in the description herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application, the use of the terms "and / or" includes a combination of one or more of the associated listed items.

[0030] Embodiment one, please refer to the accompanying drawings Figures 1-6The utility model provides an illustrated high -voltage shore power special photoelectric composite flexible cable, including cavity photoelectric transmission mechanism 1, cavity photoelectric transmission mechanism 1 includes fire -retardant inner sheath 11 and the high bulkiness glass fiber band 12 in the central axis direction of fire -retardant inner sheath 11, fire -retardant inner sheath 11 is by two half -cylinder mould injection moulding, the high bulkiness glass fiber band 12 both sides of outer wall are provided with iron oxide red silica gel layer 121, and the high bulkiness glass fiber band 12 will the cavity of fire -retardant inner sheath 11 divide into electric unit cavity 111 and light unit cavity 112, be provided with two electric unit wire groups 13 in electric unit cavity 111, be provided with light unit wire group 14 in light unit cavity 112, fire -retardant inner sheath 11 outside is provided with heat dissipation protection mechanism 2, every electric unit wire group 13 in the cavity photoelectric transmission mechanism 1 includes four different color insulation single wire 131, and four insulation single wire 131 are mutually twisted into shape, and every electric unit wire group 13 is extruded in four insulation single wire 131 and has chlorinated polyethylene inner layer 132, and every chlorinated polyethylene inner layer 132 outer wall is provided with extruded insulation layer 133, and every insulation layer 133 is provided with the high -strength polyester tape 134 of overlap wrapping molding outside, and every high -strength polyester tape 134's outer wall is extruded heat dissipation protection sleeve 135, every light unit wire group 14 includes the ferrule 141 and the optical fiber 142 in ferrule 141, and every ferrule 141 outer wall is provided with oxygen barrier layer 143, and every oxygen barrier layer 143 is provided with extruded fire -retardant layer 144, and every fire -retardant layer 144 outer wall is provided with polytetrafluoroethylene heat insulation layer 145, heat dissipation protection mechanism 2 includes high temperature resistant silica gel heat dissipation layer 21, and high temperature resistant silica gel heat dissipation layer 21 is wrapped fire -retardant inner sheath 11, and high temperature resistant silica gel heat dissipation layer 21 outer wall is provided with the copper wire metal mesh shielding layer 22 of double -layer copper wire weaving formation, and copper wire metal mesh shielding layer 22 outside is provided with the aluminium tape heat dissipation armoring 23 of wrapping molding.

[0031] The above structure realizes the separate arrangement of the light unit wire group 14 and the electric unit wire group 13 through the cooperation between the cavity photoelectric transmission mechanism 1 and the heat dissipation protection mechanism 2, achieves the heat insulation and heat dissipation purposes, avoids the influence of a large amount of heat generated by the high-power transmission of the electric unit wire group 13 on the data transmission of the light unit wire group 14, prevents the temperature of the optical fiber 142 from reaching the upper limit of the temperature that the optical fiber 142 can withstand in the case that the temperature gradually rises in summer, and is more suitable for use in the high-voltage shore power system and reduces the probability of cable damage.

[0032] Embodiment two, please refer to the attached Figure 2 And 3As shown, the inner cavity of the flame-retardant inner sheath 11 is provided with a heat dissipation filler 15 at the gap between the electric unit wire group 13 and the optical unit wire group 14, through the heat dissipation filler 15, the positioning of the electric unit wire group 13 and the optical unit wire group 14 is realized, and the heat dissipation and pressure resistance protection are also realized, the round hole position of the high-bulk glass fiber belt 12 is provided with a non-metallic reinforcing rib 16, through the non-metallic reinforcing rib 16, the tensile and toughness of the whole cable are improved, and the non-metallic material is light in texture, which is convenient for wiring.

[0033] Embodiment three, please refer to the attached Figure 5 and 6 As shown, the aluminum strip heat dissipation armor 23 is provided with an extrusion-molded halogen-free low-smoke flame-retardant outer sheath 24, which is made of a glue material free of halogen, lead, cadmium, mercury and other substances, produces less smoke dust when burning, does not emit toxic smoke, has low corrosiveness when burning, and therefore has little harm to the environment, the minimum diameter of the braided copper wire of the copper wire metal mesh shielding layer 22 is 0.2 mm, the thicknesses of the high-temperature-resistant silica gel heat dissipation layer 21, the copper wire metal mesh shielding layer 22 and the aluminum strip heat dissipation armor 23 are the same, the high-temperature-resistant silica gel heat dissipation layer 21 improves the compression resistance and heat dissipation effect of the cable, the copper wire metal mesh shielding layer 22 improves the shielding performance of the cable, the shielding layer of the braided copper wire is also beneficial to heat dissipation, the aluminum material used in the aluminum strip heat dissipation armor 23 has good plasticity and heat conduction performance, and the gap between each said loose tube 141 and the optical fiber 142 is provided with a fiber paste 146 for preventing water and water vapor from entering

[0034] The optical fiber 142 can also not be naturally stretched in the bundle tube and is not stressed.

[0035] The above describes the present application by way of example with reference to the drawings, and it is obvious that the specific implementation of the present application is not limited to the above manner, as long as the method concept and technical solution of the present application are adopted for such non-essential improvement, or the concept and technical solution of the present application are directly applied to other occasions without improvement, which are all within the protection scope of the present application.

Claims

1. A high-voltage shore power dedicated optoelectronic composite flexible cable, comprising a cavity optoelectronic transmission mechanism (1), characterized in that: The split-cavity photoelectric transmission mechanism (1) comprises a flame-retardant inner sheath (11) and a high-bulky glass fiber tape (12) located in the central axis direction of the flame-retardant inner sheath (11), iron oxide red silica gel layers (121) are provided on both sides of the outer wall of the high-bulky glass fiber tape (12), and the high-bulky glass fiber tape (12) divides the inner cavity of the flame-retardant inner sheath (11) into an electric unit cavity (111) and an optical unit cavity (112), two electric unit line groups (13) are provided in the electric unit cavity (111), and an optical unit line group (14) is provided in the optical unit cavity (112), and a heat dissipation protection mechanism (2) is provided outside the flame-retardant inner sheath (11); Each electrical unit wire group (13) in the cavity-divided photoelectric transmission mechanism (1) includes four insulating single wires (131) of different colors, and the four insulating single wires (131) are twisted together to form a shape. The four insulating single wires (131) in each electrical unit wire group (13) are extruded with a chlorinated polyethylene inner layer (132). The outer wall of each chlorinated polyethylene inner layer (132) is provided with an extruded insulating layer (133). The outer wall of each insulating layer (133) is provided with an overlapping and wrapped high-strength polyester tape (134). The outer wall of each high-strength polyester tape (134) is extruded with a heat dissipation protective sleeve (135). Each optical unit line group (14) includes a loose tube (141) and an optical fiber (142) in the loose tube (141); the outer wall of each loose tube (141) is provided with an oxygen isolation layer (143); each oxygen isolation layer (143) is provided with an extruded flame retardant layer (144); and the outer wall of each flame retardant layer (144) is provided with a polytetrafluoroethylene heat insulation layer (145); The heat dissipation protection mechanism (2) comprises a high-temperature resistant silicone heat dissipation layer (21), the high-temperature resistant silicone heat dissipation layer (21) wraps the flame-retardant inner sheath (11), the outer wall of the high-temperature resistant silicone heat dissipation layer (21) is provided with a copper wire metal mesh shielding layer (22) formed by braiding double layers of copper wires, and the outer surface of the copper wire metal mesh shielding layer (22) is provided with a wrapped aluminum tape heat dissipation armor (23); A fiber paste (146) is provided in the gap between each loose tube (141) and the optical fiber (142); A heat dissipation filler (15) is provided in the gap between the inner cavity of the flame-retardant inner sheath (11) and the electrical unit wire group (13) and the optical unit wire group (14); Non-metallic reinforcing ribs (16) are provided at the circular hole positions of the high-bulk glass fiber tape (12).

2. The high-voltage shore power dedicated optoelectronic composite flexible cable according to claim 1, characterized in that: An extruded halogen-free, low-smoke, flame-retardant outer sheath (24) is provided outside the aluminum strip heat dissipation armor (23).

3. The high-voltage shore power dedicated optoelectronic composite flexible cable according to claim 1, characterized in that: The minimum diameter of the braided copper wires of the copper wire metal mesh shielding layer (22) is 0.2 mm.

4. The high-voltage shore power dedicated optoelectronic composite flexible cable according to claim 1, characterized in that: The thicknesses of the high-temperature resistant silicone heat dissipation layer (21), the copper wire metal mesh shielding layer (22), and the aluminum tape heat dissipation armor (23) are all the same.

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