Multifunctional cable

Abstract

The utility model discloses a multifunctional cable, which sequentially comprises at least one cable core, a heat conduction layer, a heat absorption layer and an outer sheath from inside to outside, wherein the heat conduction layer is sleeved with an insulating layer of the cable core, the heat absorption layer is sleeved with the heat conduction layer, the outer sheath is sleeved with the heat absorption layer, and an anti-condensation layer is sleeved on the periphery of the outer sheath. According to the multifunctional cable disclosed by the invention, the heat generated by the cable core in the electrifying process is transferred to the heat absorption layer by the heat conduction layer, the heat conduction layer can accelerate the heat dissipation of the cable core, and the heat absorption layer absorbs the heat dissipated by the cable core, so that accumulated snow on the outer sheath does not freeze due to heat water, the periphery of the outer sheath is sleeved with the anti-condensation layer, and the surface friction coefficient of the anti-condensation layer is low; and even if a small amount of snow is stored, the snow cannot be melted, and the snow can be quickly separated when the cable vibrates slightly.

Description

Technical Field

[0001] The utility model relates to the technical field of cables, and more specifically, to a multifunctional cable. Background Art

[0002] With the development of society, electric power has become an indispensable power resource in people's production and life. In the transmission of electric power, wires and cables play an indispensable role. Whether in Africa, America, mountains, or confined jungles, as long as there are frequent human activities, you can see the shadow of wires and cables.

[0003] In the cold winter season, especially when it snows, snowflakes will accumulate on the cables, which may cause the cables to be overloaded and break. To this end, we provide a multifunctional cable to solve the above problems. Utility Model Content

[0004] One purpose of the utility model is to provide a new technical solution for a multifunctional cable.

[0005] According to a first aspect of the utility model, a multifunctional cable is provided, which comprises, from inside to outside, at least one wire core, a heat-conducting layer covering the insulating layer of the wire core, a heat-absorbing layer covering the heat-conducting layer, an outer sheath covering the heat-absorbing layer, and an anti-condensation layer covering the outer periphery of the outer sheath.

[0006] Optionally, the heat-conducting layer is made of heat-conducting rubber.

[0007] Optionally, the heat absorption layer is made of a solid-solid phase change material, and the solid-solid phase change material is a polyol, an inorganic salt or an organic polymer.

[0008] Optionally, the heat absorption layer is made of a solid-liquid phase change material, and the solid-liquid phase change material is higher aliphatic hydrocarbons, fatty acids and their esters, crystalline hydrated salts, molten salts or polymers.

[0009] Optionally, camphor leaf oil, tsaoko oil, cinnamon oil, benzyl acetate, prickly ash oil, citric acid or methylcellulose is added to the outer sheath.

[0010] Optionally, rat-proofing agent DH-600 and / or termite-proofing agent DH-203 are added to the outer sheath.

[0011] Optionally, the anti-condensation layer is made of fluorosilicone resin.

[0012] Optionally, the ratio of the radial thickness of the heat conducting layer to the radial thickness of the heat absorbing layer is 0.5-1.

[0013] Optionally, a ratio of a radial thickness of the heat absorption layer to a radial thickness of the outer sheath is 1-1.25.

[0014] Optionally, the ratio of the radial thickness of the outer sheath to the radial thickness of the anti-coagulation layer is 2-3.

[0015] A multifunctional cable according to the present disclosure has the following beneficial effects:

[0016] The heat generated by the wire core during the power-on process is transferred to the heat absorption layer by the heat conductive layer. The heat conductive layer can accelerate the heat dissipation of the wire core. The heat absorption layer absorbs the heat emitted by the wire core, so that the snow on the outer sheath does not melt or freeze due to the heat generated by the wire core 1. An anti-condensation layer is arranged on the outer periphery of the outer sheath. The surface friction coefficient of the anti-condensation layer is low, which is not conducive to the accumulation of snow. Even if there is a trace amount of snow, it will not melt and will quickly detach when the cable vibrates slightly.

[0017] Other features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the present invention and, together with the description, serve to explain the principles of the present invention.

[0019] Figure 1 A schematic structural diagram of a multifunctional cable according to a first embodiment of the present invention;

[0020] Figure 2 A schematic structural diagram of a multifunctional cable according to a second embodiment of the present invention;

[0021] Figure 3 A schematic structural diagram of a multifunctional cable according to a third embodiment of the present invention;

[0022] The following are marked in the figure:

[0023] 1-wire core; 2-heat conducting layer; 3-heat absorbing layer; 4-outer sheath; 5-anti-condensation layer; 6-PE wire; 7-control wire. DETAILED DESCRIPTION

[0024] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention.

[0025] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present invention, its application, or uses.

[0026] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0027] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0028] According to a multifunctional cable disclosed in the present invention, Figures 1 to 3 As shown, from the inside to the outside, it includes at least one wire core 1, a heat-conducting layer 2 on which the insulation layer of the wire core 1 is sheathed, a heat-absorbing layer 3 on which the heat-conducting layer 2 is sheathed, an outer sheath 4 on which the heat-absorbing layer 3 is sheathed, and an anti-condensation layer 5 is sheathed on the outer periphery of the outer sheath 4.

[0029] The heat generated by the wire core 1 during the power-on process is transferred to the heat absorption layer 3 by the heat conductive layer 2. The heat conductive layer 2 can accelerate the heat dissipation of the wire core 1. The heat absorption layer 3 absorbs the heat emitted by the wire core 1, so that the snow on the outer sheath 4 does not melt into water or ice due to the heat generated by the wire core 1. An anti-condensation layer 5 is arranged on the outer periphery of the outer sheath 4. The surface friction coefficient of the anti-condensation layer 5 is low, which is not conducive to the accumulation of snow. Even if there is a small amount of snow, it will not melt and will quickly detach when the cable vibrates slightly.

[0030] In specific implementation, the wire core 1 can be formed by twisting a plurality of strands, or can be an aluminum rod wire.

[0031] According to an embodiment of a multifunctional cable disclosed herein, the heat conducting layer 2 is made of heat conducting rubber, which can play an insulating role, while also playing a role in dissipating the heat generated by the wire core 1 and quickly transferring the heat to the heat absorbing layer.

[0032] According to an embodiment of a multifunctional cable disclosed in the present invention, the heat absorption layer 3 is made of a solid-solid phase change material, and the solid-solid phase change material is a polyol, an inorganic salt or an organic polymer. The solid-solid phase change material absorbs and releases heat by converting the crystal structure of the substance. There is no phase change during the conversion process, so the volume change is small, and there are no problems such as supercooling and leakage.

[0033] Polyols may be pentaerythritol, neopentyl glycol, trimethylolethane, etc.; inorganic salts may be Li2SO4, KHF2, etc.; organic polymers may be high-density polyethylene, etc.

[0034] According to an embodiment of a multifunctional cable disclosed herein, the heat absorption layer 3 is made of a solid-liquid phase change material, and the solid-liquid phase change material is higher aliphatic hydrocarbons, fatty acids and their esters, crystalline hydrated salts, molten salts or polymers.

[0035] Solid-liquid phase change materials have gradually become a research hotspot due to their wide material sources, low prices, and high phase change latent heat. Among them, higher aliphatic hydrocarbons can be n-hexadecane, n-octadecane, paraffin, etc.; fatty acids and their esters can be stearic acid, palmitic acid, etc.; crystalline hydrated salts can be Na2SO4·10H2O, Mn(NO3)2·6H2O, etc.; molten salts can be LiF, NaF, CaF2, etc.; metals and alloys can be lead-tin alloys, etc.; polymers can be polyethylene glycol, etc.

[0036] According to an embodiment of a multifunctional cable disclosed in the present invention, camphor leaf oil, tsaoko oil, cinnamon oil, benzyl acetate, prickly ash oil, citric acid or methylcellulose is added to the outer sheath 4. It can play a bird-proof role. The cable can slowly and persistently release a special fragrance that affects the nervous system and respiratory system of birds. Birds will fly away after smelling it and will not come back during their memory period. This cable can be used in the wild environment to prevent birds from landing.

[0037] According to an embodiment of a multifunctional cable disclosed in the present invention, rat-proofing agent DH-600 and / or termite-proofing agent DH-203 are added to the outer sheath 4. When the cable is used inside a factory, it can prevent the cable from being eaten by rats and termites, thereby extending the service life of the cable; meanwhile, a PE line 6 and a control line 7 can be arranged inside the outer sheath 4.

[0038] According to an embodiment of a multifunctional cable disclosed herein, the anti-condensation layer 5 is made of fluorosilicone resin. Fluorosilicone resin, also known as fluorosilicone copolymer resin, is a synthetic resin mixed with fluororesin and silicone resin, and has excellent temperature resistance, anti-stickiness, chemical resistance, and anti-fouling properties.

[0039] According to an embodiment of a multifunctional cable disclosed herein, a ratio of a radial thickness of the heat conducting layer 2 to a radial thickness of the heat absorbing layer 3 is 0.5-1.

[0040] When the ratio of the radial thickness of the heat conducting layer 2 to the radial thickness of the heat absorbing layer 3 is less than 0.5, the temperature rise of the cable is less than the qualified value of 50K but does not decrease significantly. Continuing to reduce the radial thickness of the heat conducting layer 2 will also reduce the insulation performance of the heat conducting layer 2. When the ratio of the radial thickness of the heat conducting layer 2 to the radial thickness of the heat absorbing layer 3 is greater than 1, the temperature rise of the cable is greater than 50K and is unqualified. The radial thickness of the heat conducting layer 2 accounts for too large a proportion, and the time for the heat generated by the core 1 to be transferred to the heat absorbing layer 3 through the heat conducting layer 2 is prolonged, so the heat generated by the core 1 cannot be dissipated in time. Therefore, the inventor selects the ratio of the radial thickness of the heat conducting layer 2 to the radial thickness of the heat absorbing layer 3 to be 0.5-1.

[0041] According to an embodiment of a multifunctional cable disclosed herein, a ratio of a radial thickness of the heat absorption layer 3 to a radial thickness of the outer sheath 4 is 1-1.25.

[0042] When the ratio of the radial thickness of the heat absorption layer 3 to the radial thickness of the outer sheath 4 is less than 1, the temperature rise of the cable is higher than the qualified value of 50K. When the ratio of the radial thickness of the heat absorption layer 3 to the radial thickness of the outer sheath 4 is greater than 1.25, the temperature rise of the cable is less than 50K, which is a qualified value, but there is no obvious decrease. The radial thickness of the heat absorption layer 3 continues to increase and has lost its meaning. Therefore, the inventor selects the ratio of the radial thickness of the heat absorption layer 3 to the radial thickness of the outer sheath 4 to be 1-1.25.

[0043] According to an embodiment of a multifunctional cable disclosed herein, a ratio of a radial thickness of the outer sheath 4 to a radial thickness of the anti-coagulation layer 5 is 2-3.

[0044] When the ratio of the radial thickness of the outer sheath 4 to the radial thickness of the anti-coagulation layer 5 is greater than 3, the anti-coagulation layer 5 is easily damaged; when the ratio of the radial thickness of the outer sheath 4 to the radial thickness of the anti-coagulation layer 5 is less than 2, adding bird repellents such as camphor leaf oil, tsaoko oil, cinnamon oil, benzyl acetate, prickly ash oil, citric acid or methyl cellulose to the outer sheath 4 will not play the best role in expelling birds; or, adding rat repellent DH-600 and / or termite repellent DH-203 to the outer sheath 4 will not effectively expel rats and termites.

[0045] Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present invention. It should be understood by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A multifunctional cable, characterized in that: It includes at least one wire core from inside to outside, a heat-conducting layer covering the insulating layer of the wire core, a heat-absorbing layer covering the heat-conducting layer, an outer sheath covering the heat-absorbing layer, and an anti-condensation layer covering the outer sheath.

2. The multifunctional cable according to claim 1, characterized in that: The material of the heat-conducting layer is heat-conducting rubber.

3. The multifunctional cable according to claim 1, characterized in that: The heat absorption layer is made of a solid-solid phase change material, and the solid-solid phase change material is a polyol, an inorganic salt or an organic polymer.

4. The multifunctional cable according to claim 1, characterized in that: The heat absorption layer is made of a solid-liquid phase change material, and the solid-liquid phase change material is a higher aliphatic hydrocarbon, a fatty acid and its ester, a crystalline hydrated salt, a molten salt or a polymer.

5. The multifunctional cable according to claim 1, characterized in that: The anti-condensation layer is made of fluorosilicone resin.

6. The multifunctional cable according to claim 1, characterized in that: The ratio of the radial thickness of the heat conducting layer to the radial thickness of the heat absorbing layer is 0.5-1.

7. The multifunctional cable according to claim 1, characterized in that: The ratio of the radial thickness of the heat absorption layer to the radial thickness of the outer sheath is 1-1.

25.

8. The multifunctional cable according to claim 1, characterized in that: The ratio of the radial thickness of the outer sheath to the radial thickness of the anti-coagulation layer is 2-3.

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