Weather-resistant moisture-proof cable

Abstract

The utility model relates to the technical field of cables, in particular to a weather-resistant moisture-proof cable, which comprises a steel core and cable cores, the cable cores are arranged around the steel core in a circumferential array manner, radiating fins are arranged on the surface of the steel core, an outer insulating layer, an anti-corrosion layer and a protective layer are sequentially arranged on the outer layer of the steel core, and the protective layer is arranged on the outer layer of the steel core. And water-blocking yarns are filled between the protective layer and the anti-corrosion layer. According to the utility model, heat generated in the cable core can be transferred by arranging the radiating fins on the steel core, so that an effective heat dissipation effect is achieved, the discontinuously arranged radiating fins cannot affect the overall bending of the cable, and the radiating fins pass through the protective layer and the anticorrosive layer, so that the heat can be conveniently and directly transferred to the outside, and the service life of the cable is prolonged. And the nylon and the water-blocking yarns are matched with each other, so that heat dissipation and water insulation effects can be achieved at the same time, the outer layer of the cable is protected, and a moisture-proof effect is achieved at the same time.

Description

Technical Field

[0001] The utility model relates to the technical field of cables, in particular to a weather-resistant and moisture-proof cable. Background Art

[0002] Cables are usually made of several or several groups of wires (at least two wires in each group) twisted together like ropes. Each group of wires is insulated from each other and often twisted around a center wire. The entire outside is covered with a highly insulating covering. Cables have the characteristics of being powered inside and insulated outside.

[0003] The cable will generate heat during operation, mainly due to the Joule heat generated by the resistor. If this heat cannot be dissipated in time, the cable temperature will rise, causing damage to the outer protective sheath of the cable, further causing the weather resistance to deteriorate. In addition, the heat will directly affect the moisture-proof effect of the outer layer of the cable, allowing water vapor to enter the cable. After long-term use, it will directly damage the protective layer, leading to leakage. Utility Model Content

[0004] The purpose of the utility model is to provide a weather-resistant and moisture-proof cable, which solves the problem that the cable generates heat during operation in the prior art, mainly due to the Joule heat generated by the resistor. If the heat cannot be dissipated in time, the cable temperature will rise, causing damage to the protective sheath of the outer layer of the cable, further causing the weather resistance to deteriorate, and the heat will directly affect the moisture-proof effect of the outer layer of the cable, so that water vapor enters the inside of the cable, which will directly cause the protective layer to be damaged after long-term use, and then cause the leakage problem.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A weather-resistant and moisture-proof cable comprises a steel core and a cable core. The cable core is arranged in a circular array around the steel core. A heat sink is arranged on the surface of the steel core. The outer layer of the steel core is sequentially provided with an outer insulating layer, an anti-corrosion layer and a protective layer. Water-blocking yarn is filled between the protective layer and the anti-corrosion layer. The outer side of the cable core is wrapped with an inner insulating layer.

[0007] Preferably, the heat sinks and cable cores are in three groups, and two adjacent groups of heat sinks or two adjacent cable cores are 120 degrees apart, each group of heat sinks is arranged at intervals, and the heat sinks penetrate the protective layer and the anti-corrosion layer and are inserted into the water-blocking yarn.

[0008] Preferably, thermal conductive silicone grease is filled between the protective layer and the steel core to achieve the purpose of filling the gap between the cable core and the steel core.

[0009] Preferably, the inner insulating layer is made of polyethylene material, and the outer insulating layer is made of cross-linked polyethylene material.

[0010] Preferably, the protective layer is a cable sheath made of nylon.

[0011] Preferably, the anti-corrosion layer is an anodic electrophoretic aluminum-zinc alloy coating.

[0012] The utility model has at least the following beneficial effects:

[0013] By arranging heat sinks on the steel core, the heat generated in the cable core can be transferred, thereby playing an effective heat dissipation role. The heat sink can also divide the cable core to reduce the overlap of heat caused by crossing between the cable cores, thereby protecting the outer layer of the cable, reducing high-temperature damage, and further enhancing the weather resistance of the cable. The intermittently arranged heat sinks will not affect the overall bending of the cable. The heat sinks pass through the protective layer and the anti-corrosion layer, making it convenient to transfer heat directly to the outside. By using nylon and water-blocking yarn in cooperation with each other, they can simultaneously play a role in heat dissipation and water insulation, protecting the outer layer of the cable and achieving a moisture-proof effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is a cross-sectional view of the cable core of the utility model;

[0017] Figure 3 This is a schematic diagram of the heat sink structure of the utility model.

[0018] In the figure: 1. Steel core; 2. Cable core; 3. Heat sink; 4. Thermal grease; 5. Inner insulation layer; 6. Outer insulation layer; 7. Water-blocking yarn; 8. Protective layer; 9. Anti-corrosion layer. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. In addition, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0022] The electrical components mentioned in this article are all connected to an external main controller and 220V mains electricity, and the main controller can be a conventional known device for controlling a computer or the like.

[0023] In the description of the embodiments of the present invention, it should be noted that the terms "inside", "outside", "upper", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0024] Reference Figure 1-3 A weather-resistant and moisture-proof cable comprises a steel core 1 and a cable core 2. The cable core 2 is arranged in a circular array around the steel core 1. A heat sink 3 is arranged on the surface of the steel core 1. The outer layer of the steel core 1 is provided with an outer insulating layer 6, an anti-corrosion layer 9, and a protective layer 8 in sequence. A water-blocking yarn 7 is filled between the protective layer 8 and the anti-corrosion layer 9. The outer side of the cable core 2 is wrapped with an inner insulating layer 5. By providing the steel core 1, the overall strength and toughness of the entire cable are enhanced. By providing the heat sink 3, the heat generated in the cable core 2 can be transferred, thereby playing an effective heat dissipation role. Moreover, the heat sink 3 can divide the cable core 2 to reduce the situation where the crossover between the cable cores 2 causes the heat to be superimposed, thereby protecting the outer layer of the cable, reducing high-temperature damage, and enhancing the corrosion resistance of the cable. The insulation layer, anti-corrosion layer 9 and protective layer 8 provided on the outer layer further enhance the corrosion resistance of the cable.

[0025] Furthermore, the heat sink 3 and the cable core 2 are each in three groups, and the angle between two adjacent groups of heat sinks 3 or two adjacent cable cores 2 is one hundred and twenty degrees. Each group of heat sinks 3 is arranged at intervals, and the heat sink 3 passes through the protective layer 8 and the anti-corrosion layer 9 and is inserted into the interior of the water-blocking yarn 7. The intermittently arranged heat sink 3 will not be affected by the overall bending of the cable. The heat sink 3 passes through the protective layer 8 and the anti-corrosion layer 9, which facilitates the direct transfer of heat to the outside.

[0026] Furthermore, thermal grease 4 is filled between the protective layer 8 and the steel core 1 to achieve the purpose of filling the gap between the cable core 2 and the steel core 1. The thermal grease 4 is also called thermal paste or heat dissipation paste. It is a cheese-like substance with a certain viscosity, which can effectively fill the gap and transfer heat at the same time.

[0027] Furthermore, the inner insulating layer 5 is made of polyethylene material, and the outer insulating layer 6 is made of cross-linked polyethylene material. The two layers of insulating materials are used for insulation treatment, thereby improving the safety of the cable in use.

[0028] Furthermore, the protective layer 8 is a cable sheath made of nylon material. Nylon material has high mechanical strength, high softening point, heat resistance, low friction coefficient, wear resistance, and good weather resistance. It is also breathable and convenient for heat dissipation. Moisture can pass through the nylon layer into the internal water-blocking yarn 7. The diameter of the water-blocking yarn 7 when rainwater falls will increase, thereby achieving a water-proofing effect. By using the cooperation between nylon and the water-blocking yarn 7, both heat dissipation and water-proofing effects can be achieved.

[0029] Furthermore, the anti-corrosion layer 9 is an anodic electrophoretic aluminum-zinc alloy coating.

[0030] In summary, by providing the steel core 1, the overall strength and toughness of the entire cable are enhanced. By providing the heat sink 3, the heat generated in the cable core 2 can be transferred, thereby playing an effective heat dissipation role. In addition, the heat sink 3 can divide the cable core 2 to reduce the overlap of heat caused by the crossover between the cable cores 2, thereby protecting the outer layer of the cable, reducing high-temperature damage, and enhancing the corrosion resistance and weather resistance of the cable. The insulation layer, anti-corrosion layer 9 and protective layer 8 provided on the outer layer further enhance the corrosion resistance of the cable. The intermittently arranged heat sink 3 will not affect the overall bending of the cable. The heat sink 3 passes through the protective layer 8 and the anti-corrosion layer 9, which is convenient for directly transferring heat to the outside. Two layers of insulating materials are used for insulation treatment, which improves the safety of the cable in use. The cooperation of nylon and water-blocking yarn 7 can simultaneously play a role in heat dissipation and waterproofing, and has a moisture-proof function.

[0031] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and the specification only describe the principles of the utility model. The utility model may be subject to various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A weather-resistant and moisture-proof cable, characterized in that: The invention comprises a steel core (1) and a cable core (2), wherein the cable core (2) is arranged in a circular array around the steel core (1), a heat sink (3) is arranged on the surface of the steel core (1), an outer layer of the steel core (1) is provided with an outer insulating layer (6), an anti-corrosion layer (9) and a protective layer (8) in sequence, a water-blocking yarn (7) is filled between the protective layer (8) and the anti-corrosion layer (9), and the outer side of the cable core (2) is wrapped with an inner insulating layer (5).

2. A weather-resistant and moisture-proof cable according to claim 1, characterized in that: The heat sinks (3) and cable cores (2) are each in three groups, and two adjacent groups of heat sinks (3) or two adjacent cable cores (2) are at an angle of 120 degrees. Each group of heat sinks (3) is arranged at intervals, and the heat sinks (3) penetrate the protective layer (8) and the anti-corrosion layer (9) and are inserted into the interior of the water-blocking yarn (7).

3. A weather-resistant and moisture-proof cable according to claim 1, characterized in that: The protective layer (8) and the steel core (1) are filled with thermal conductive silicone grease (4) to achieve the purpose of filling the gap between the cable core (2) and the steel core (1).

4. A weather-resistant and moisture-proof cable according to claim 1, characterized in that: The inner insulating layer (5) is made of polyethylene material, and the outer insulating layer (6) is made of cross-linked polyethylene material.

5. The weather-resistant and moisture-proof cable according to claim 1, characterized in that: The protective layer (8) is a cable sheath made of nylon material.

6. A weather-resistant and moisture-proof cable according to claim 1, characterized in that: The anti-corrosion layer (9) is an anodic electrophoretic aluminum-zinc alloy coating.

Images