Water-penetration-resistant cable

Abstract

The utility model relates to the technical field of cables, in particular to a water-penetration-resistant cable, which comprises a conductor inner core, a heat dissipation layer fixedly connected to the outer wall of the conductor inner core, an insulating layer fixedly connected to the outer wall of the heat dissipation layer, a waterproof layer fixedly connected to the outer wall of the insulating layer, a buffer layer fixedly connected to the outer wall of the waterproof layer, and a waterproof layer fixedly connected to the outer wall of the buffer layer. A plurality of buffer devices are fixedly connected into the buffer layer, each buffer device comprises a first buffer block and a buffer spring, the first buffer blocks are fixedly connected to the outer wall of the waterproof layer, the buffer springs are fixedly connected to the centers of the tops of the first buffer blocks, and second buffer blocks are fixedly connected to the top ends of the buffer springs; and a protective layer is fixed on the outer wall of the buffer layer. When the cable resistant to water penetration is in a state of being soaked in water, waterproof protection is carried out on the insulating layer, the heat dissipation layer and the conductor inner core in the cable through the waterproof layer, so that the internal structure of the waterproof layer is prevented from being damaged due to being soaked in water, and the service life of the cable is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of cables, in particular to a cable resistant to water penetration. Background Art

[0002] Cable is a device for transmitting electric energy or signals, usually composed of several or several groups of wires. Cables include power cables, control cables, compensation cables, shielded cables, high-temperature cables, computer cables, signal cables, coaxial cables, fire-resistant cables, marine cables, mining cables, aluminum alloy cables, etc. They are all composed of single or multiple strands of wires and insulation layers, used to connect circuits, electrical appliances, etc. With the rapid development of underground laying projects of power cables, higher requirements are put forward for cable protection. Cable protection sleeves are made of polyethylene PE and high-quality steel pipes through sandblasting and shot blasting pre-treatment, plastic dipping or painting, and heating and curing processes. It is the most commonly used electrical insulation tube for protecting wires and cables. It is widely used because of its good insulation performance, high chemical stability, no rust, no aging, and adaptability to harsh environments.

[0003] Most cables are buried underground to transmit electricity. Cables are buried in humid areas underground or completely immersed in water. Traditional cables have poor waterproofing effects. Some cables have poor hydrolysis resistance, which causes sheath cracking, short circuits, and control misoperation, causing great pollution to the environment and reducing the service life of the cables. At the same time, when moving equipment, the cables will also move. The cables are easily damaged by external forces. In dark and humid underground areas, the degree of damage to the cables is often more obvious, which greatly reduces the service life of the cables and may even cause damage to the connected equipment due to water ingress due to cable damage. Utility Model Content

[0004] The purpose of the utility model is to provide a cable resistant to water penetration, so as to solve the problems raised in the above background technology.

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

[0006] A cable resistant to water penetration, comprising a conductor inner core, a heat dissipation layer fixedly connected to the outer wall of the conductor inner core, an insulating layer fixedly connected to the outer wall of the heat dissipation layer, a waterproof layer fixedly connected to the outer wall of the insulating layer, a buffer layer fixedly connected to the outer wall of the waterproof layer, a plurality of buffer devices fixedly connected inside the buffer layer, the buffer devices comprising a first buffer block and a buffer spring, the first buffer block fixedly connected to the outer wall of the waterproof layer, a buffer spring fixedly connected to the top center of the first buffer block, a second buffer block fixedly connected to the top of the buffer spring, and a protective layer fixedly connected to the outer wall of the buffer layer.

[0007] Preferably, a plurality of fins are fixed inside the heat dissipation layer, and the fins are made of metal wires.

[0008] Preferably, the conductor inner core is an alloy, specifically made of one or more materials selected from the group consisting of gold, silver, copper, aluminum or aluminum alloy.

[0009] Preferably, the insulating layer is made of fluoroplastic material.

[0010] Preferably, the waterproof layer is made of polyurethane material.

[0011] Preferably, the protective layer is made of rubber material.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The water-resistant cable has a waterproof layer. When the water-resistant cable is immersed in water, the internal insulation layer, heat dissipation layer and conductor core are waterproofed by the waterproof layer, thereby preventing the internal structure of the waterproof layer from being damaged due to being immersed in water, thereby increasing the service life of the cable. Meanwhile, the waterproof layer is made of polyurethane, silica gel and other waterproof materials with good hydrolysis resistance, thereby preventing the sheath from cracking due to poor hydrolysis resistance, causing short circuits and control misoperation, thereby causing great pollution to the environment and increasing the service life of the cable.

[0014] 2. This kind of water-resistant cable, through the setting of the buffer layer, when the water-resistant cable is in an extruded state, the protective layer is squeezed inward to drive the first buffer block in the buffer device in the buffer layer to squeeze the second buffer block, so that the buffer spring therein is deformed, thereby being able to buffer the pulling force, avoiding the cable from breaking, and facilitating extending the service life of the cable. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0016] Figure 2 It is a front view schematic diagram of the overall structure of the utility model;

[0017] Figure 3 It is a schematic cross-sectional view of the overall structure of the utility model;

[0018] Figure 4 It is an enlarged schematic diagram of the local structure of the utility model.

[0019] In the figure: 1. protective layer; 2. conductor core; 3. heat dissipation layer; 4. fins; 5. insulation layer; 6. waterproof layer; 7. first buffer block; 8. buffer spring; 9. buffer layer; 10. second buffer block. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "several" is two or more, unless otherwise clearly and specifically defined.

[0022] See also Figure 1-Figure 4 As shown, a technical solution provided by the utility model:

[0023] A water-permeation-resistant cable comprises a conductor inner core 2, a heat dissipation layer 3 is fixedly connected to the outer wall of the conductor inner core 2, an insulating layer 5 is fixedly connected to the outer wall of the heat dissipation layer 3, a waterproof layer 6 is fixedly connected to the outer wall of the insulating layer 5, a buffer layer 9 is fixedly connected to the outer wall of the waterproof layer 6, a plurality of buffer devices are fixedly connected inside the buffer layer 9, the buffer device comprises a first buffer block 7 and a buffer spring 8, the first buffer block 7 is fixedly connected to the outer wall of the waterproof layer 6, a buffer spring 8 is fixedly connected to the top center of the first buffer block 7, a second buffer block 10 is fixedly connected to the top of the buffer spring 8, and a protective layer 1 is fixedly provided on the outer wall of the buffer layer 9; by setting the waterproof layer 6, when the water-permeation-resistant cable is in a state of being soaked in water, the internal insulating layer 5, the heat dissipation layer 3 and the conductor inner core are separated by the waterproof layer 6. 2 is used for waterproof protection, which prevents the internal structure of the waterproof layer 6 from being damaged due to water immersion, thereby enhancing the service life of the cable. At the same time, the constituent material of the waterproof layer is a waterproof material with good hydrolysis resistance such as polyurethane and silicone, which prevents the sheath from cracking due to poor hydrolysis resistance, causing short circuits and control misoperation, causing great pollution to the environment, and improving the service life of the cable; through the setting of the buffer layer 9, when the water-resistant cable is in an extruded state, the first buffer block 7 in the buffer device in the buffer layer 9 is driven by the protective layer 1 to squeeze the inside to squeeze the second buffer block 10, so that the buffer spring 8 therein is deformed, thereby being able to buffer the pulling force, avoiding the cable from breaking, and facilitating extending the service life of the cable.

[0024] In this embodiment, preferably, a plurality of fins 4 are fixed inside the heat dissipation layer 3, and the fins 4 are made of metal wires. Through the arrangement of the fins 4, the heat generated in the conductor core 2 can be dispersed and transmitted to the heat dissipation layer 3, thereby improving the heat dissipation capacity of the heat dissipation layer. At the same time, the fins 4 can also provide support for the heat dissipation layer.

[0025] In this embodiment, preferably, the conductor core 2 is made of an alloy, specifically one or more materials selected from the group consisting of gold, silver, copper, aluminum or aluminum alloy.

[0026] In this embodiment, preferably, the insulating layer 5 is made of fluoroplastic material. Fluoroplastic has high chemical stability and chemical corrosion resistance, fire resistance, high temperature resistance, flame retardancy and other properties. Fluoroplastic makes the insulating layer 5 have higher stability and better insulation, so that the durability of the insulating layer 5 is greatly enhanced, thereby reducing safety accidents caused by damage to the insulating layer 5.

[0027] In this embodiment, preferably, the waterproof layer 6 is made of polyurethane material. The full name of polyurethane is polyurethane, which is formed by the addition polymerization of organic diisocyanate or polyisocyanate and dihydroxy or polyhydroxy compounds. Its mechanical properties have great adjustability. At the same time, polyurethane also has excellent elasticity, elongation, compression strength and softness, as well as good chemical stability. The waterproof layer 6 made of polyurethane not only has good waterproofness, but also has strong hydrolysis resistance, avoiding the cracking of the sheath due to poor hydrolysis resistance, causing short circuits and control misoperation, causing great pollution to the environment, and improving the service life of the cable.

[0028] In this embodiment, preferably, the protective layer 1 is made of rubber material. Through the physical and chemical properties of the rubber material, the protective layer 1 can not only meet special requirements such as wear resistance, flame retardancy, and high temperature resistance, but also has a certain degree of insulation, forming a double insulation design with the insulating layer 5, further ensuring the electrical safety of the cable when in use.

[0029] When the water-resistant cable of the present embodiment is in use, through the setting of the waterproof layer 6, when the water-resistant cable is in a state of being soaked in water, the internal insulating layer 5, the heat dissipation layer 3 and the conductor core 2 are waterproofed by the waterproof layer 6, so that the internal structure of the waterproof layer 6 is prevented from being damaged by being soaked in water, thereby enhancing the service life of the cable; at the same time, the waterproof layer 6 is made of polyurethane material, and the full name of polyurethane is polyurethane, which is formed by the addition polymerization of organic diisocyanate or polyisocyanate and dihydroxy or polyhydroxy compounds, and its mechanical properties have great adjustability. At the same time, polyurethane also has excellent elasticity, elongation, compression strength and softness, as well as good chemical stability. The waterproof layer 6 composed of polyurethane not only has good waterproofness, but also has strong hydrolysis resistance, avoiding the cracking of the sheath due to poor hydrolysis resistance, causing short circuit and control misoperation, causing great pollution to the environment, and enhancing the service life of the cable. By setting the buffer layer 9, when the water-resistant cable is in an extruded state, the first buffer block 7 in the buffer device in the buffer layer 9 is driven to squeeze the second buffer block 10 by the protective layer 1 extruding inward, so that the buffer spring 8 therein is deformed, so that the pulling force can be buffered to avoid the cable from breaking, which is convenient for extending the service life of the cable; the insulating layer 5 is composed of fluoroplastic material, which has high chemical stability and chemical corrosion resistance, fire resistance, high temperature resistance, flame retardancy and other characteristics. The insulating layer 5 has higher stability and better insulation through fluoroplastic, so that the durability of the insulating layer 5 is greatly enhanced, thereby reducing the safety accidents caused by damage to the insulating layer 5. At the same time, the protective layer 1 is composed of rubber material. Through the physical and chemical properties of rubber material, the protective layer 1 can not only adapt to special requirements such as wear resistance, flame retardancy, high temperature resistance, etc., but also has a certain degree of insulation, forming a double insulation design with the insulating layer 5, further ensuring the electrical safety of the cable when in use. The conductor core 2 is an alloy, specifically one or more materials selected from gold, silver, copper, aluminum or aluminum alloy; a plurality of fins 4 are fixed inside the heat dissipation layer 3, and the fins 4 are made of metal wires. Through the arrangement of the fins 4, the heat generated in the conductor core 2 can be dispersed and transmitted to the heat dissipation layer 3, thereby improving the heat dissipation capacity of the heat dissipation layer. At the same time, the fins 4 can also provide support for the heat dissipation layer.

[0030] 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 descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A cable resistant to water penetration, comprising a conductor core (2), characterized in that: The outer wall of the conductor inner core (2) is fixedly connected to a heat dissipation layer (3), the outer wall of the heat dissipation layer (3) is fixedly connected to an insulating layer (5), the outer wall of the insulating layer (5) is fixedly connected to a waterproof layer (6), the outer wall of the waterproof layer (6) is fixedly connected to a buffer layer (9), the buffer layer (9) is fixedly connected to a plurality of buffer devices, the buffer devices comprising a first buffer block (7) and a buffer spring (8), the first buffer block (7) is fixedly connected to the outer wall of the waterproof layer (6), the top center of the first buffer block (7) is fixedly connected to a buffer spring (8), the top of the buffer spring (8) is fixedly connected to a second buffer block (10), and the outer wall of the buffer layer (9) is fixedly connected to a protective layer (1).

2. A water penetration resistant cable according to claim 1, characterized in that: A plurality of fins (4) are fixed inside the heat dissipation layer (3), and the fins (4) are made of metal wires.

3. A water penetration resistant cable according to claim 1, characterized in that: The insulating layer (5) is made of fluoroplastic material.

4. A water penetration resistant cable according to claim 1, characterized in that: The waterproof layer (6) is made of polyurethane material.

5. A water penetration resistant cable according to claim 1, characterized in that: The protective layer (1) is made of rubber material.

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