Waterproof control cable

Abstract

The utility model discloses a waterproof control cable, which is characterized by comprising a cable core, a first flame-retardant layer, an isolating layer, a waterproof layer, a second flame-retardant layer and a protective layer, the cable core comprises a conductor, an insulating layer and a filling layer; the cable core is provided with a plurality of conductors, each conductor is wrapped with an insulating layer, and the conductors and the insulating layers are arranged in a filling layer; the filling layer is formed by filling glass fiber ropes; the first flame-retardant layer wraps the cable core; and the first flame-retardant layer is made of chlorosulfonated polyethylene. Glass fiber ropes are adopted in the cable core to serve as a filling layer, high-temperature-resistant and high-strength glass fibers are adopted in the glass fiber ropes, the glass fiber ropes are formed by weaving through a special technology, and the cable has the performance of high temperature resistance, corrosion resistance, high strength and the like; chlorosulfonated polyethylene has good physical and mechanical properties, aging resistance, flame resistance and electrical insulation resistance. The cable can be effectively protected, the flame-retardant performance of the cable is improved, and the service life of the cable is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of cables, specifically a waterproof control cable. Background Technology

[0002] With the development of modern industrial technology, the demand for electricity is increasing, and cables are indispensable in various environments. In the existing technology, Chinese utility model patent with announcement number CN220821158U discloses a waterproof and moisture-proof cable, including a cable and a waterproof and moisture-proof sheath. The cable is characterized in that: the conductor of the cable is wrapped with an insulation layer, and the insulation layer is wrapped with an insulation pad layer, while the outer side of the insulation pad layer is fixedly covered with an outer sheath layer; the outer side of the outer sheath layer is covered by a protective sleeve, and the inside of the protective sleeve is filled with sealing foam.

[0003] Its shortcomings include a lack of flame-retardant properties, which prevents it from effectively preventing flame retardancy and fires. Utility Model Content

[0004] To overcome the above-mentioned technical defects, this utility model provides a waterproof control cable.

[0005] To solve the above problems, this utility model is implemented according to the following technical solution:

[0006] The waterproof control cable of this utility model is characterized by comprising: a cable core, a first flame-retardant layer, an isolation layer, a waterproof layer, a second flame-retardant layer, and a protective layer;

[0007] The cable core includes: a conductor, an insulation layer, and a filling layer;

[0008] The cable core is provided with a plurality of conductors, each conductor is wrapped with an insulating layer, and the conductors and the insulating layer are disposed within a filler layer;

[0009] The filling layer is made of glass fiber rope filling;

[0010] The first flame-retardant layer wraps around the cable core, and the first flame-retardant layer is made of chlorosulfonated polyethylene.

[0011] Preferably, the isolation layer is extruded over the first flame-retardant layer, and the isolation layer is a polyvinyl chloride sheath material extruded over and covering the first flame-retardant layer.

[0012] Preferably, the waterproof layer wraps around the insulating layer;

[0013] The waterproof layer includes: water-blocking tape, water-blocking layer, and water-blocking yarn;

[0014] The water-blocking tape is wrapped around the isolation layer, the water-blocking layer wraps around the water-blocking tape, and the water-blocking yarn is wrapped around the water-blocking layer.

[0015] Preferably, the water-blocking layer is made of ethylene propylene rubber.

[0016] Preferably, the thickness of the water-blocking strip is not less than 0.3 mm.

[0017] Preferably, the second flame-retardant layer covers the waterproof layer, and the second flame-retardant layer is made of polyphosphazene rubber material.

[0018] Preferably, the protective layer encapsulates the second flame-retardant layer, and the protective layer is polyimide.

[0019] Preferably, the insulating layer is made of cross-linked polyethylene.

[0020] Compared with the prior art, the beneficial effects of this utility model are:

[0021] This utility model provides a waterproof control cable, characterized in that it comprises: a cable core, a first flame-retardant layer, an isolation layer, a waterproof layer, a second flame-retardant layer, and a protective layer; the cable core comprises: a conductor, an insulation layer, and a filling layer; the cable core is provided with a plurality of conductors, each conductor being wrapped with an insulation layer, the conductors and the insulation layer being disposed within the filling layer; the filling layer is made of glass fiber rope filling; the first flame-retardant layer wraps the cable core; the first flame-retardant layer is made of chlorosulfonated polyethylene.

[0022] The cable core uses fiberglass rope as the filling layer. This fiberglass rope is made of high-temperature resistant, high-strength fiberglass, woven using a special process. It is an elastic fiberglass rope with key properties such as high temperature resistance, corrosion resistance, and high strength, effectively protecting the cable and improving its insulation and flame retardancy. Chlorosulfonated polyethylene is used as the first flame-retardant layer. Chlorosulfonated polyethylene has good physical and mechanical properties, aging resistance, heat and low-temperature resistance, flame retardancy, abrasion resistance, and electrical insulation. It effectively protects the cable, improves its flame retardancy, and extends its service life. Attached Figure Description

[0023] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, wherein:

[0024] Figure 1 This is a schematic diagram of the structural cross-section of a waterproof control cable according to this utility model;

[0025] Figure 2 This is a schematic diagram of the cross-section of the cable core and the first flame-retardant layer of a waterproof control cable according to this utility model;

[0026] Figure 3 This is a schematic diagram of the waterproof layer structure of a waterproof control cable according to this utility model;

[0027] In the picture:

[0028] 1-Cable core, 101-Conductor, 102-Insulation layer, 103-Filling layer;

[0029] 2- First flame-retardant layer;

[0030] 3-Isolation layer;

[0031] 4-Waterproof layer, 401-Water-blocking tape, 402-Water-blocking layer, 403-Water-blocking yarn;

[0032] 5-Second flame-retardant layer;

[0033] 6-Protective layer. Detailed Implementation

[0034] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0035] like Figures 1-2 As shown, the waterproof control cable of this utility model includes: cable core 1, first flame retardant layer 2, isolation layer 3, waterproof layer 4, second flame retardant layer 5, and protective layer 6;

[0036] The cable core 1 includes: a conductor 101, an insulation layer 102, and a filling layer 103;

[0037] The cable core 1 is provided with a plurality of conductors 101, and each conductor 101 is wrapped with an insulation layer 102. The conductors 101 and the insulation layer 102 are disposed within the filler layer 103.

[0038] The filling layer 103 is made of high-temperature glass fiber rope filling;

[0039] The first flame-retardant layer 2 wraps around the cable core 1; the first flame-retardant layer 2 is made of chlorosulfonated polyethylene.

[0040] Understandably, Figure 2 This is a schematic cross-sectional view of the cable core 1 of a waterproof control cable according to the present invention. The cable core 1 includes a conductor 101, an insulation layer 102, and a filling layer 103. In this embodiment, the cable core 1 is provided with three conductors, and each of the three conductors 101 is wrapped with an insulation layer 102. The conductors 101 and the insulation layer 102 are disposed within the filling layer 103.

[0041] Optionally, the insulation layer 102 is cross-linked polyethylene. In this embodiment, polyethylene has the characteristics of corrosion resistance, wear resistance, good insulation, and is non-toxic and odorless. In addition, polyethylene has a compact structure, low permeability to water vapor and air, and low water absorption, making it difficult for moisture in the external air to penetrate into the interior. This application uses polyethylene as the material for the insulation layer 102 to further improve the waterproof protection of the high-voltage cable, ensure good insulation performance, and is also safer and more environmentally friendly.

[0042] Optionally, the filler layer 103 is made of fiberglass rope. Fiberglass is an engineering material with advantages such as non-combustibility, corrosion resistance, high temperature resistance, low thermal absorption, and low deformation coefficient. The fiberglass rope is made of high-temperature resistant, high-strength fiberglass, woven using a special process. It is a woven elastic fiberglass rope with key properties such as high temperature resistance, corrosion resistance, and high strength. Using fiberglass rope as the filler layer 103 in this application can effectively protect the cable, improve its insulation, and enhance its flame retardancy.

[0043] Optionally, the first flame-retardant layer 2 wraps around the cable core 1; the first flame-retardant layer 2 is made of chlorosulfonated polyethylene.

[0044] It is understood that chlorosulfonated polyethylene is a special chlorine-containing elastomer material with a highly saturated chemical structure, obtained from polyethylene as the main raw material through chlorination and chlorosulfonation reactions. It belongs to a high-performance special rubber variety. It appears as a white or milky-white elastic material with thermoplasticity. Due to the presence of chlorosulfonyl active groups in its molecular structure, it exhibits high activity, particularly excelling in resistance to chemical media corrosion, ozone oxidation, oil erosion, and flame retardancy. It also possesses weather resistance, heat resistance, resistance to ionizing radiation, low-temperature resistance, abrasion resistance, electrical insulation, and excellent mechanical properties. In this application, chlorosulfonated polyethylene is used as the material of the first flame-retardant layer 2. Chlorosulfonated polyethylene has good physical and mechanical properties, aging resistance, heat and low-temperature resistance, flame retardancy, abrasion resistance, and electrical insulation.

[0045] In one embodiment, the isolation layer 3 is extruded over the first flame-retardant layer 2, and the isolation layer 3 is a polyvinyl chloride sheath material extruded over and covering the first flame-retardant layer 2.

[0046] Understandably, the insulation layer 3 is extruded and covered over the first flame-retardant layer 2 to protect the cable core 1 and the first flame-retardant layer 2, preventing damage to the internal structure of the cable from the external environment.

[0047] Optional, such as Figure 3 As shown, the waterproof layer consists of 4 rolls wrapped with an isolation layer of 3.

[0048] The waterproof layer 4 includes: a water-blocking tape 401, a water-blocking layer 402, and a water-blocking yarn 403; the water-blocking tape 401 is wrapped around the isolation layer 3, the water-blocking layer 402 wraps the water-blocking tape 401, and the water-blocking yarn 403 is wrapped around the water-blocking layer 402.

[0049] In a specific embodiment, the waterproof layer 4 imparts water-blocking properties to the cable through a combination structure of water-blocking tape 401, water-blocking layer 402, and water-blocking yarn 403. Specifically, the water-blocking tape 401 is formed by wrapping water-blocking tape. Preferably, the thickness of the water-blocking tape 401 is not less than 0.3 mm, and the wrapping overlap rate is preferably between 10% and 20%. Such an overlap rate helps to form a denser waterproof layer 4, effectively preventing the intrusion of moisture.

[0050] In a specific embodiment, the water-blocking layer 402 is made of ethylene propylene rubber. Because its main chain is composed of chemically stable saturated hydrocarbons, ethylene propylene rubber has excellent aging resistance such as ozone resistance, heat resistance, and weather resistance. It also has good chemical resistance, electrical insulation properties, impact elasticity, low temperature performance, low density, high filling capacity, hot water resistance, and water vapor resistance.

[0051] In this field, water-blocking yarn 403 is made by coating fibers with a water-absorbing material, wherein the surface of the yarn fibers is coated with the water-absorbing material. In a specific embodiment, water-blocking yarn 403 is made by coating polyester fibers with a water-absorbing material.

[0052] The waterproof layer 4 of this technology utilizes a combination structure of water-blocking tape 401, water-blocking layer 402, and water-blocking yarn 403. This combined structure effectively prevents moisture from penetrating the cable conductor, protecting the cable's interior from the effects of a humid environment, thereby ensuring the cable's reliability and safety. Through this multi-layered water-blocking structure, the cable can maintain stable performance in harsh environments and reduce safety accidents caused by electrical faults.

[0053] Optionally, a second flame-retardant layer 5 is placed over the waterproof layer 4, and the second flame-retardant layer 5 is made of polyphosphazene rubber.

[0054] In one embodiment, polyphosphazene rubber possesses excellent insulation properties, good heat resistance, and strong aging resistance. During long-term use, it can resist the erosion of various factors such as ultraviolet radiation, chemicals, and humidity, thereby extending the cable's service life and reducing the frequency of maintenance or replacement due to deterioration of the insulation layer. This application uses polyphosphazene rubber as the material for the second flame-retardant layer 5, which plays a flame-retardant protective role in the cable, improving its flame-retardant performance and enhancing its safety in use.

[0055] Optionally, the protective layer 6 may wrap the second flame-retardant layer 5, and the protective layer 6 may be polyimide.

[0056] In one embodiment, polyimide is resistant to extremely low temperatures and possesses excellent mechanical properties, as well as high radiation resistance and good dielectric properties. These properties of polyimide remain at a high level over a wide temperature and frequency range. Polyimide is a self-extinguishing polymer with low smoke emission. The use of polyimide as the material for protective layer 6 in this application can protect the cable, improve working efficiency, and extend the cable's service life.

[0057] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Therefore, any modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A waterproof control cable, characterized in that, include: Cable core (1), first flame-retardant layer (2), isolation layer (3), waterproof layer (4), second flame-retardant layer (5) and protective layer (6); The cable core (1) includes: a conductor (101), an insulation layer (102), and a filling layer (103); The cable core (1) is provided with a plurality of conductors (101), each conductor (101) is wrapped with an insulating layer (102), and the conductors (101) and the insulating layer (102) are disposed in a filling layer (103); The filling layer (103) is made of glass fiber rope filling; The first flame-retardant layer (2) wraps the cable core (1), and the first flame-retardant layer (2) is made of chlorosulfonated polyethylene.

2. The waterproof control cable according to claim 1, characterized in that, The isolation layer (3) is extruded over the first flame retardant layer (2), and the isolation layer (3) is a polyvinyl chloride sheath material extruded over the first flame retardant layer (2).

3. The waterproof control cable according to claim 1, characterized in that, The waterproof layer (4) wraps around the isolation layer (3); The waterproof layer (4) includes: a water-blocking tape (401), a water-blocking layer (402), and a water-blocking yarn (403); The water-blocking tape (401) is wrapped around the isolation layer (3), the water-blocking layer (402) wraps around the water-blocking tape (401), and the water-blocking yarn (403) is wrapped around the water-blocking layer (402).

4. A waterproof control cable according to claim 3, characterized in that, The water-blocking layer (402) is made of ethylene propylene rubber.

5. A waterproof control cable according to claim 3, characterized in that, The thickness of the water-blocking strip (401) is not less than 0.3 mm.

6. A waterproof control cable according to claim 1, characterized in that, The second flame-retardant layer (5) covers the waterproof layer (4), and the second flame-retardant layer (5) is made of polyphosphazene rubber material.

7. A waterproof control cable according to claim 1, characterized in that, The protective layer (6) wraps the second flame-retardant layer (5), and the protective layer (6) is polyimide.

8. A waterproof control cable according to claim 1, characterized in that, The insulating layer (102) is made of cross-linked polyethylene.

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