Thin steel wire braided reinforced silicone rubber insulation power cable

Abstract

The utility model provides a fine steel wire braided reinforced silicone rubber insulated power cable, which relates to the field of power cables and comprises a silicone rubber cable body, a cable outer structure layer and a conductive wire core are arranged in the silicone rubber cable body, and a shielding layer is arranged at the inner side end of the cable outer structure layer. A reinforcing structure layer is bonded to the outer surface of the shielding layer, a thin steel wire layer is arranged in the middle of the reinforcing structure layer, the inner side face and the outer side face of the thin steel wire layer are wrapped and bonded with a second silica gel cotton layer and a first silica gel cotton layer respectively, and the outer side face of the first silica gel cotton layer is wrapped with a first polyester elastic layer; and the inner side surface of the second silica gel cotton layer is connected with the shielding layer through the second polyester elastic layer. According to the utility model, the problem that in the prior art, when a silicone rubber cable is bent, an internal metal net layer easily generates pressure on a structural layer in contact with a bent surface, so that the structural layer in the silicone rubber cable is abraded or deformed is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of power cables, in particular to a thin steel wire braided reinforced silicone rubber insulated power cable. Background Art

[0002] Silicone rubber insulated power cables have the characteristics of heat radiation resistance, cold resistance, acid and alkali resistance and corrosive gas resistance, and are waterproof. The cable structure is soft and easy to lay. The electrical performance is stable in high temperature (high cold) environments, the anti-aging performance is outstanding, and the service life is long. It is widely used in metallurgy, electric power, petrochemical, electronics, automobile manufacturing and other industries. After searching, the existing technology (Announcement No.: CN202222236001.9) is a silicone rubber insulated power cable. The article records that "a first metal mesh layer and a second metal mesh layer woven from high-tensile strength steel are attached to the inner and outer surfaces of the silicone rubber layer to increase the tensile resistance of the silicone rubber layer and make the power cable more resistant to pulling." However, in the existing technology, when the silicone rubber cable is bent, the internal metal mesh layer easily exerts pressure on the structural layer in contact with its bent surface, resulting in wear or deformation of the internal structural layer of the silicone rubber cable. Utility Model Content

[0003] In order to overcome the defects of the existing technology, a fine steel wire braided reinforced silicone rubber insulated power cable is now provided to solve the problem in the existing technology that when the silicone rubber cable is bent, the internal metal mesh layer easily exerts pressure on the structural layer in contact with its bent surface, causing wear or deformation of the inner structural layer of the silicone rubber cable.

[0004] To achieve the above object, a thin steel wire braided reinforced silicone rubber insulated power cable is provided, comprising: a silicone rubber cable body, wherein the silicone rubber cable body contains a cable outer structure layer and a conductive core,

[0005] A shielding layer is provided at the inner end of the outer structural layer of the cable, a reinforcement structural layer is bonded to the outer surface of the shielding layer, a fine steel wire layer is provided in the middle of the reinforcement structural layer, the inner and outer sides of the fine steel wire layer are respectively wrapped and bonded with a second silicone cotton layer and a first silicone cotton layer, the outer side of the first silicone cotton layer is wrapped with a first polyester elastic layer, and the inner side of the second silicone cotton layer is connected to the shielding layer through the second polyester elastic layer.

[0006] Furthermore, the outer surface of the silicone rubber cable body is sleeved with a wear-resistant sheath; and the outer surface of the wear-resistant sheath is in the shape of an outward convex strip.

[0007] Furthermore, the outer side of the conductive core is wrapped with an insulating layer, and the inner side of the outer structure layer of the cable is tightly wrapped with an insulating layer through a silicone resin filling layer.

[0008] Furthermore, the outer structural layer of the cable contains a rubber skin, a waterproof layer, a protective layer, a reinforcement structural layer and a shielding layer.

[0009] Furthermore, the inner side of the rubber skin is wrapped with a waterproof layer, and the inner side of the waterproof layer is wrapped with a reinforcement structure layer through a protective layer.

[0010] Furthermore, the fine steel wire layer is in the form of a woven fine steel wire mesh and is located between the second silicone cotton layer and the first silicone cotton layer.

[0011] Furthermore, the thickness of the first polyester elastic layer and the second polyester elastic layer is 0.2 mm-0.1 mm, and the thickness of the first silicone cotton layer and the second silicone cotton layer is 0.35 mm-0.15 mm.

[0012] The beneficial effect of the present invention is that the fine steel wire braided reinforced silicone rubber insulated power cable of the present invention utilizes the fine steel wire layer in the reinforcement structure layer to reinforce the outer structure layer of the silicone rubber cable, and at the same time, the inner and outer sides of the fine steel wire layer buffer the pressure of the curved surface of the fine steel wire layer through the polyester elastic layer and the silicone cotton layer, thereby preventing the curved fine steel wire layer from wearing or damaging the functional structure layer of the silicone rubber cable, ensuring the tightness of the overall structure of the silicone rubber cable, enhancing the overall compression and tensile resistance of the silicone rubber cable, facilitating more stable support and protection of the conductive core inside the silicone rubber cable, ensuring the normal transmission of the silicone rubber cable, and improving the service life of the silicone rubber cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of a partial cross-sectional structure of a fine steel wire braided reinforced silicone rubber insulated power cable according to an embodiment of the present utility model.

[0014] Figure 2 This is a schematic diagram of the partial cross-sectional structure of the outer structural layer of the cable according to an embodiment of the present utility model.

[0015] Figure 3 This is a schematic diagram of a partial cross-sectional structure of a reinforcement structure layer in a front view according to an embodiment of the present utility model.

[0016] Figure 4 This is a schematic diagram of the three-dimensional structure of the wear-resistant sheath according to an embodiment of the present utility model.

[0017] In the figure: 1. Silicone rubber cable body; 2. Wear-resistant sheath; 3. Cable outer structural layer; 31. Rubber skin; 32. Waterproof layer; 33. Protective layer; 34. Shielding layer; 4. Conductive core; 41. Insulation layer; 42. Silicone resin filling layer; 5. Reinforcement structure layer; 51. First polyester elastic layer; 52. First silicone cotton layer; 53. Fine steel wire layer; 54. Second polyester elastic layer; 55. Second silicone cotton layer. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] Reference Figures 1 to 4 As shown, the utility model provides a thin steel wire braided reinforced silicone rubber insulated power cable, comprising: a silicone rubber cable body 1, wherein the silicone rubber cable body 1 contains a cable outer structure layer 3 and a conductive core 4,

[0020] A shielding layer 34 is provided at the inner end of the outer structural layer 3 of the cable, and a reinforcement structural layer 5 is bonded to the outer surface of the shielding layer 34. A fine steel wire layer 53 is provided in the middle of the reinforcement structural layer 5. The inner and outer sides of the fine steel wire layer 53 are respectively wrapped and bonded with a second silicone cotton layer 55 and a first silicone cotton layer 52. The outer side of the first silicone cotton layer 52 is wrapped with a first polyester elastic layer 51, and the inner side of the second silicone cotton layer 55 is connected to the shielding layer 34 through the second polyester elastic layer 54.

[0021] The silicone rubber cable body 1 reinforces the outer structural layer 3 of the cable by the fine steel wire layer 53 in the reinforcement structural layer 5. At the same time, the inner and outer sides of the fine steel wire layer 53 buffer the pressure of the curved surface of the fine steel wire layer 53 through the polyester elastic layer and the silicone cotton layer, so as to prevent the curved fine steel wire layer 53 from wearing or damaging the functional structural layer of the silicone rubber cable, ensure the tightness of the overall structure of the silicone rubber cable, enhance the overall compression and tensile resistance of the silicone rubber cable, facilitate more stable support and protection of the conductive core inside the silicone rubber cable, ensure the normal transmission of the silicone rubber cable, and improve the service life of the silicone rubber cable.

[0022] In this embodiment, the outer surface of the silicone rubber cable body 1 is sleeved with a wear-resistant sheath 2; and the outer surface of the wear-resistant sheath 2 is in the shape of an outward convex strip.

[0023] As a preferred embodiment, the wear-resistant sheath 2 is sleeved on the rubber skin 31 of the silicone rubber cable body 1 to reduce the degree of wear of the rubber skin 31 and slow down the aging of the rubber skin 31 .

[0024] In this embodiment, the outer side of the conductive core 4 is wrapped with an insulating layer 41 , and the inner side of the cable outer structure layer 3 is tightly wrapped with the insulating layer 41 through a silicone resin filling layer 42 .

[0025] As a preferred embodiment, the silicone rubber cable body 1 protects the conductive core 4 from external damage through a multi-layer structure, thereby ensuring the normal transmission current of the conductive core 4.

[0026] In this embodiment, the cable outer structure layer 3 includes a rubber skin 31, a waterproof layer 32, a protective layer 33, a reinforcement structure layer 5, and a shielding layer 34. The rubber skin 31 is wrapped with a waterproof layer 32, and the waterproof layer 32 is wrapped with a reinforcement structure layer 5 via a protective layer 33.

[0027] As a preferred embodiment, the waterproof layer 32 and the protective layer 33 are made of the same waterproof and flame-retardant materials used in existing cables. Without going into details, they serve to protect the inner reinforcement structure layer 5 and the conductive core 4.

[0028] In this embodiment, the fine steel wire layer 53 is a woven fine steel wire mesh and is located between the second silicone cotton layer 55 and the first silicone cotton layer 52. The thickness of the first polyester elastic layer 51 and the second polyester elastic layer 54 is 0.2mm-0.1mm, and the thickness of the first silicone cotton layer 52 and the second silicone cotton layer 55 is 0.35-0.15mm.

[0029] As a preferred embodiment, the fine steel wire layer 53 has excellent compressive and tensile strength, enhancing the overall compressive and tensile strength of the silicone rubber cable, providing more stable support and protection for the conductive core inside the silicone rubber cable, and ensuring normal transmission of the silicone rubber cable. Both the silicone cotton layer and the silicone cotton layer provide resilience and wear resistance, preventing the fine steel wire layer 53 from damaging the functional structural layers within the silicone rubber cable when the cable bends.

[0030] The fine steel wire braided reinforced silicone rubber insulated power cable of the utility model can effectively solve the problem in the prior art that when the silicone rubber cable is bent, the internal metal mesh layer easily generates pressure on the structural layer in contact with its bent surface, causing wear or deformation of the internal structural layer of the silicone rubber cable. The utility model avoids the bent fine steel wire layer from wearing or damaging the functional structural layer of the silicone rubber cable, ensures the tightness of the overall structure of the silicone rubber cable, enhances the overall compression and tensile resistance of the silicone rubber cable, facilitates more stable support and protection of the conductive core inside the silicone rubber cable, ensures the normal transmission of the silicone rubber cable, and increases the service life of the silicone rubber cable. The utility model is suitable for fine steel wire braided reinforced silicone rubber insulated power cable.

[0031] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fine steel wire braided reinforced silicone rubber insulated power cable, comprising: A silicone rubber cable body (1) comprising a cable outer structure layer (3) and a conductive core (4) therein, characterized in that: A shielding layer (34) is provided at the inner end of the outer structural layer (3) of the cable, a reinforcement structural layer (5) is bonded to the outer surface of the shielding layer (34), a fine steel wire layer (53) is provided in the middle of the reinforcement structural layer (5), the inner and outer sides of the fine steel wire layer (53) are respectively wrapped and bonded with a second silicone cotton layer (55) and a first silicone cotton layer (52), the outer side of the first silicone cotton layer (52) is wrapped with a first polyester elastic layer (51), and the inner side of the second silicone cotton layer (55) is connected to the shielding layer (34) through the second polyester elastic layer (54).

2. A thin steel wire braided reinforced silicone rubber insulated power cable according to claim 1, characterized in that: The outer surface of the silicone rubber cable body (1) is sleeved with a wear-resistant sheath (2); and the outer surface of the wear-resistant sheath (2) is in the shape of an outward convex strip.

3. The thin steel wire braided reinforced silicone rubber insulated power cable according to claim 1, characterized in that: The outer side of the conductive core (4) is wrapped with an insulating layer (41), and the inner side of the cable outer structure layer (3) is tightly wrapped with the insulating layer (41) via a silicone resin filling layer (42).

4. The thin steel wire braided reinforced silicone rubber insulated power cable according to claim 1, characterized in that: The cable outer structural layer (3) contains a rubber skin (31), a waterproof layer (32), a protective layer (33), a reinforcement structural layer (5) and a shielding layer (34).

5. The thin steel wire braided reinforced silicone rubber insulated power cable according to claim 4, characterized in that: The inner side of the rubber skin (31) is wrapped with a waterproof layer (32), and the inner side of the waterproof layer (32) is wrapped with a reinforcement structure layer (5) via a protective layer (33).

6. The thin steel wire braided reinforced silicone rubber insulated power cable according to claim 1, characterized in that: The fine steel wire layer (53) is in the form of a woven fine steel wire mesh and is located between the second silicone cotton layer (55) and the first silicone cotton layer (52).

7. The thin steel wire braided reinforced silicone rubber insulated power cable according to claim 1, characterized in that: The thickness of the first polyester elastic layer (51) and the second polyester elastic layer (54) is 0.2 mm to 0.1 mm, and the thickness of the first silicone cotton layer (52) and the second silicone cotton layer (55) is 0.35 mm to 0.15 mm.

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