High-weather-resistant electric wire

Abstract

The utility model relates to a high weatherability electric wire, comprising an electric wire, an electric wire copper core arranged at the center inside the electric wire, an insulating layer arranged at the outer side of the electric wire copper core, a protective rubber sheet arranged at the outer side of the insulating layer, a flame-retardant cushioning rubber layer arranged inside the outer side of the protective rubber sheet, and a sealing rubber sheet layer arranged at the outer side of the protective rubber sheet. A wire group is arranged in the sealing rubber layer, and the wire group comprises but is not limited to seven wires; the cable comprises a sealing rubber layer, a wire group is wrapped in the sealing rubber layer, the space between wires is filled with a flame-retardant cushioning rubber layer, a waterproof layer is arranged on the outer side of the sealing rubber layer, a wear-resistant layer is arranged on the outer side of the waterproof layer, and protrusions are evenly arranged on the surface of the inner side of the waterproof layer. The technical problems that the connecting tightness between the waterproof layer and the sealing rubber layer is poor, the outer surface is prone to breakage, and the weather resistance is poor are solved through protrusions of the waterproof layer.

Description

Technical Field

[0001] The utility model relates to the technical field of electric wires, in particular to a highly weather-resistant electric wire. Background Art

[0002] Electric wire refers to the conductor for transmitting electric energy, which is divided into bare wire, electromagnetic wire and insulated wire. Bare wire has no insulation layer, including copper, aluminum flat wire, overhead stranded wire and various profiles (such as profiled wire, busbar, copper busbar, aluminum busbar, etc.). It is mainly used for outdoor overhead and indoor busbars and switch boxes. Electromagnetic wire is an insulated wire that generates a magnetic field or induces current in a magnetic field when energized. It is mainly used for motor and transformer windings and other related electromagnetic equipment. Its conductor is mainly copper wire, which should have a thin insulation layer and good electrical and mechanical properties, as well as heat resistance, moisture resistance, solvent resistance and other properties. Different insulating materials can be used to obtain different properties.

[0003] Patent No. CN201620765783.7 discloses a waterproof and high temperature resistant electric wire, which is connected to a waterproof layer through a wear-resistant layer, the waterproof layer is connected to a high temperature resistant layer, the high temperature resistant layer is connected to an anti-corrosion layer, the anti-corrosion layer is connected to a filling layer, the filling layer is connected to an inner protective layer, the inner protective layer is connected to a vacuum layer, the vacuum layer is connected to a foam layer, the foam layer is connected to an insulating layer, the insulating layer is connected to a conductor, and both ends of the conductor are respectively connected to a first protective strip and a second protective strip, and the first protective strip and the second protective strip are both connected to the wire body, and the first protective strip is located on the right side of the second protective strip. The wear-resistant layer, the waterproof layer, the high temperature resistant layer, the anti-corrosion layer, the filling layer, the inner protective layer, the vacuum layer, the foam layer, the insulating layer, and the conductor are all located inside the wire body, thereby improving the waterproof effect, the heat dissipation effect, and the high temperature resistant effect, and having a wide range of adaptability and a long service life. However, the electric wire has the following problems: first, the connection tightness of each layer of an outdoor electric wire group composed of multiple groups of electric wires is not good; second, the connection tightness of the rubber wrapped around the internal electric wire group and the outer empowering protective layer is poor. Utility Model Content

[0004] The purpose of the utility model is to address the deficiencies of the prior art, to increase the connection tightness between the rubber layer and the sealing layer by a foamed rubber layer, and to solve the technical problems of poor connection tightness between the waterproof layer and the sealing rubber layer, easy breakage of the outer surface, and poor weather resistance by the bulge of the waterproof layer.

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

[0006] A highly weather-resistant electric wire, comprising an electric wire, wherein a copper core is provided at the center of the electric wire, an insulating layer is provided on the outside of the copper core, a protective rubber is provided on the outside of the insulating layer, a flame-retardant shock-absorbing rubber layer is provided on the inside of the protective rubber, a sealing rubber layer is provided on the outside of the protective rubber, an electric wire group is provided on the inside of the sealing rubber layer, and the electric wire group includes but is not limited to seven electric wires;

[0007] A sealing rubber layer, wherein the sealing rubber layer wraps the wire group, and a flame retardant shock absorbing rubber layer is filled between the wires, a waterproof layer is arranged on the outside of the sealing rubber layer, a wear-resistant layer is arranged on the outside of the waterproof layer, and protrusions are evenly arranged on the inner surface of the waterproof layer.

[0008] Preferably, the flame retardant shock absorbing rubber layer includes but is not limited to a thermoplastic elastomer layer, a silicone rubber layer, an EPDM rubber layer, and a nitrile rubber layer.

[0009] As a preferred embodiment, grooves are evenly arranged on the outer side of the waterproof layer, and protrusions are arranged on the inner side of the waterproof layer, the grooves and protrusions are in the same hole position, and there is an arc-shaped space inside the protrusion.

[0010] As a preference, the inner side of the wear-resistant layer is in a smooth arc shape, and the inner side of the wear-resistant layer is wrapped with a waterproof layer.

[0011] As a preference, the sealing rubber layer comprises a rubber layer and a sealing layer, and a foam rubber layer is provided between the rubber layer and the sealing layer.

[0012] As another preferred embodiment, the wear-resistant layer comprises an outer layer and an inner layer, the outer layer is a wear-resistant material layer, and the inner layer is a weather-resistant layer.

[0013] Beneficial effects of the utility model:

[0014] (1) In the utility model, the safety performance of the entire wire is improved by providing an insulating layer, the sealing rubber layer is provided to improve the sealing of the wire and extend the service life of the wire, and the waterproof layer and the wear-resistant layer are provided to effectively improve the wear resistance, waterproofness and weather resistance of the wire.

[0015] (2) In the present invention, a protrusion is provided at the connection between the inner side of the waterproof layer and the outer side of the sealing rubber layer. The protrusion is elastic and is squeezed during the installation process, so that the entire wire group has shock absorption and heat dissipation space.

[0016] (3) In the present invention, a sealing layer and a rubber layer are provided and connected by a foaming rubber layer, thereby greatly improving the connection tightness between the sealing layer and the rubber layer and improving the sealing performance of the wire.

[0017] In summary, the electric wire has the advantages of good waterproof and wear resistance, strong weather resistance, and strong connection between protective layers, and is particularly suitable for the field of electric wire technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] 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 only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0020] Figure 2 It is a schematic diagram of the structure of the protrusion in the utility model.

[0021] Figure 3 It is a schematic diagram of the structure of the copper core of the electric wire in the utility model.

[0022] Figure 4 It is a schematic diagram of the structure of the rubber layer and the sealing layer in the utility model. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present utility model are clearly and completely described below in conjunction with the accompanying drawings.

[0024] Embodiment 1

[0025] like Figures 1 to 4 As shown, the utility model provides a highly weather-resistant electric wire, including an electric wire 5, wherein a wire copper core 1 is provided at the center of the inner part of the electric wire 5, an insulating layer 2 is provided on the outer side of the wire copper core 1, a protective rubber 3 is provided on the outer side of the insulating layer 2, a flame-retardant shock-absorbing rubber layer 4 is provided on the outer side of the protective rubber 3, and a sealing rubber layer 6 is provided on the outer side of the protective rubber 3, and an electric wire group 7 is provided on the inner side of the sealing rubber layer 6, and the electric wire group 7 includes but is not limited to seven electric wires 5;

[0026] A sealing rubber layer 6, wherein the sealing rubber layer 6 wraps the wire group 7, and the flame retardant shock absorbing rubber layer 4 is filled between the wires 5, a waterproof layer 8 is arranged on the outside of the sealing rubber layer 6, a wear-resistant layer 9 is arranged on the outside of the waterproof layer 8, and protrusions 81 are uniformly arranged on the inner surface of the waterproof layer 8.

[0027] Furthermore, the flame retardant and shock absorbing rubber layer 4 includes but is not limited to a thermoplastic elastomer layer, a silicone rubber layer, an EPDM rubber layer, and a nitrile rubber layer. It is an environmentally friendly flame retardant material that conforms to the current national development conditions. The rubber material has an anti-vibration and shock absorbing effect, and the wire 5 is not easy to shift.

[0028] Furthermore, grooves are evenly arranged on the outside of the waterproof layer 8, and protrusions 81 are arranged on the inside of the waterproof layer 8. The grooves and protrusions 81 are in the same hole position. There is an arc-shaped space inside the protrusion 81. The protrusion 81 is an arc-shaped elastic shape block extending toward the sealing rubber layer 6. In this way, the waterproof layer 8 can be tightly connected to the sealing rubber layer 6 without using glue, which can ensure that the sealing rubber layer 6 and the waterproof layer 8 will not shift due to long-term aging, resulting in poor empowerment effect of the outer empowerment layer and short service life.

[0029] Furthermore, the inner side of the wear-resistant layer 9 is a smooth arc shape, and the inner side of the wear-resistant layer 9 is wrapped with the waterproof layer 8. The wear-resistant layer 9 is arranged on the surface to ensure that the entire wire has good wear resistance. When the wire is placed on the ground and dragged, the internal protective layer will not be worn due to friction with the ground.

[0030] Furthermore, the sealing rubber layer 6 includes a rubber layer 61 and a sealing layer 62 , a foam rubber layer is provided between the rubber layer 61 and the sealing layer 62 , and the sealing rubber layer 6 performs a sealing and protective operation on the wire group 7 to extend the service life of the wire group 7 .

[0031] Furthermore, the wear-resistant layer 9 includes an outer layer 91 and an inner layer 92, wherein the outer layer 91 is a wear-resistant material layer, and the inner layer 92 is a weather-resistant layer, and the weather-resistant layer of the inner layer 92 is to ensure that the wire has high weather resistance.

[0032] Working process: First, the outer side of the copper core 1 of the wire is wrapped with an insulating layer 2 to ensure good insulation safety performance, and then the insulating layer 2 is provided with a protective rubber 3 to form a single group of wires 5, and multiple groups of wires 5 are used to form a wire group 7, and a sealing rubber layer 6 is provided outside the wire group 7, and then the pores between the wires 5 are filled with a flame retardant and shock absorbing rubber layer 4 to ensure that each wire 5 will not be squeezed to cause the protective rubber 3 to rupture;

[0033] A waterproof layer 8 is provided, and a protrusion 81 is provided inside the waterproof layer 8 to improve the tightness of the connection between the waterproof layer 8 and the sealing rubber layer 6, thereby ensuring the shock absorbing effect of the entire wire group 7. Secondly, a wear-resistant layer 9 is provided to improve the wear resistance and weather resistance of the wire;

[0034] The entire wire has good wear and weather resistance and good shock absorption effect. The single group of wires 5 has good protection effect and long service life, and the wire group 7 has good sealing effect.

[0035] In the description of the present invention, it should be understood that the terms "front and back", "left and right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the equipment or components referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the utility model.

[0036] Of course, in the present technical solution, those skilled in the art should understand that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0037] The above is only a preferred specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art under the technical guidance of the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A highly weather-resistant wire, Features: include An electric wire (5), wherein a copper core (1) is provided at the center of the electric wire (5), an insulating layer (2) is provided on the outside of the copper core (1), a protective rubber (3) is provided on the outside of the insulating layer (2), a flame retardant and shock absorbing rubber layer (4) is provided on the inside of the protective rubber (3), and a sealing rubber layer (6) is provided on the outside of the protective rubber (3), and a wire group (7) is provided on the inside of the sealing rubber layer (6), wherein the wire group (7) includes but is not limited to seven electric wires (5); A sealing rubber layer (6), wherein the sealing rubber layer (6) wraps the wire group (7), and the flame retardant shock absorbing rubber layer (4) is filled between the wires (5), a waterproof layer (8) is provided on the outside of the sealing rubber layer (6), a wear-resistant layer (9) is provided on the outside of the waterproof layer (8), and the inner surface of the waterproof layer (8) is evenly provided with protrusions (81).

2. A highly weather-resistant electric wire according to claim 1, It is characterized in that The flame retardant and shock absorbing rubber layer (4) comprises a thermoplastic elastomer layer, a silicone rubber layer, an EPDM rubber layer and a nitrile rubber layer.

3. A highly weather-resistant electric wire according to claim 1, It is characterized in that The outer side of the waterproof layer (8) is evenly provided with grooves, and the inner side of the waterproof layer (8) is provided with protrusions (81), the grooves and the protrusions (81) are in the same hole position, and the protrusions (81) are inside an arc-shaped space.

4. A highly weather-resistant electric wire according to claim 1, It is characterized in that The inner side of the wear-resistant layer (9) is in a smooth arc shape, and the inner side of the wear-resistant layer (9) is wrapped with a waterproof layer (8).

5. A highly weather-resistant electric wire according to claim 1, It is characterized in that The sealing rubber layer (6) comprises a rubber layer (61) and a sealing layer (62), and a foaming rubber layer is provided between the rubber layer (61) and the sealing layer (62).

6. A highly weather-resistant electric wire according to claim 1, It is characterized in that The wear-resistant layer (9) comprises an outer layer (91) and an inner layer (92); the outer layer (91) is a wear-resistant material layer, and the inner layer (92) is a weather-resistant layer.

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