High-temperature-resistant flexible wire

Abstract

The utility model relates to the field of flexible wires, and discloses a high-temperature-resistant flexible wire, which comprises a sheath and a plurality of wire cores, the inner wall of the sheath is fixedly connected with a waterproof coating, the inner wall of the waterproof coating is fixedly connected with a wrapping tape layer, the plurality of wire cores are all located in the wrapping tape layer, a filling layer is arranged between the plurality of wire cores and the wrapping tape layer, and the wrapping tape layer is arranged between the plurality of wire cores and the wrapping tape layer. The wire core comprises a conductor and an insulating sleeve, the insulating sleeve is fixedly connected to the outer wall of the conductor, the conductor is formed by concentrically stranding a plurality of nickel-plated copper wires with the same diameter, and the insulating sleeve is formed by wrapping a plurality of layers of mica tapes. Compared with the prior art, the flexible wire has the following advantages and effects: the flexible wire can be suitable for stable work at a higher environment temperature, no pollution is generated during use, the mechanical performance is less reduced, the service life under a high-temperature condition is effectively prolonged, the high-temperature resistance of the flexible wire is further improved, the puncture-proof performance and the compression-resistant buffer performance of the flexible wire are also improved, and the service life of the flexible wire is prolonged. And the use requirements can be better met.

Description

Technical Field

[0001] The present application relates to the technical field of flexible electric wires, and in particular to a high temperature resistant flexible electric wire. Background Art

[0002] Flexible wires are made up of multiple thin, soft copper wires. Due to their softness, flexible wires are easier to thread through pipes and connect joints during construction, and are suitable for some applications that require longitudinal and lateral bending.

[0003] In the related technologies, high temperature resistant soft wires are mainly made of silicone rubber, fluoroplastics, polytetrafluoroethylene and composite materials. The maximum operating temperature of silicone rubber insulated cable conductors is 180°C; the maximum operating temperature of fluoroplastic insulated cable conductors is 200°C-240°C; polytetrafluoroethylene and composite materials mainly adopt the process of sintering after wrapping, but this sintering process has the disadvantages of being highly polluting and not environmentally friendly, and will release toxic and harmful gases, which does not meet environmental requirements. Therefore, in order to enable the soft wire to work at a higher temperature for a long time, we propose a high temperature resistant soft wire to solve the above problems. Utility Model Content

[0004] The purpose of the present application is to provide a high-temperature resistant flexible electrical wire, which is capable of working stably in higher ambient temperatures, does not generate pollution during use, has little degradation in mechanical properties, and effectively extends the service life under high temperature conditions, thereby improving the high-temperature resistance of the flexible electrical wire, and also improving the puncture resistance and compression buffering performance of the flexible electrical wire, which can better meet the effect of use requirements.

[0005] The above technical objectives of this application are achieved through the following technical solutions:

[0006] A high temperature resistant soft electric wire comprises a sheath and a plurality of wire cores, wherein a waterproof coating is fixedly connected to the inner wall of the sheath, a tape layer is fixedly connected to the inner wall of the waterproof coating, the plurality of wire cores are all located in the tape layer, a filling layer is arranged between the plurality of wire cores and the tape layer, the wire core comprises a conductor and an insulating sleeve, and the insulating sleeve is fixedly connected to the outer wall of the conductor.

[0007] The present application is further configured as follows: the conductor is made of a plurality of nickel-plated copper wires of the same diameter twisted concentrically.

[0008] The present application is further configured as follows: the insulating sleeve is made by wrapping multiple layers of mica tape.

[0009] The present application is further configured as follows: the sheath includes an outer protective layer, a puncture-proof layer, a buffer layer and an inner protective layer, the puncture-proof layer is fixedly connected to the inner wall of the outer protective layer, the buffer layer is fixedly connected to the inner wall of the puncture-proof layer, and the inner protective layer is fixedly connected to the inner wall of the buffer layer.

[0010] The present application is further configured as follows: the outer protective layer and the inner protective layer are both made of basalt fiber material.

[0011] The present application is further configured as follows: the puncture-proof layer is made of Kevlar material, and the buffer layer is made of silicone material.

[0012] The present application is further configured as follows: the waterproof coating is made of waterproof silicone resin material.

[0013] The present application is further configured as follows: the filling layer is made of ceramic fiber cotton material.

[0014] The present application includes at least one of the following beneficial technical effects:

[0015] 1. The present application adopts a plurality of nickel-plated copper wires of the same diameter to form a conductor by concentric twisting, and adopts an insulating sleeve made of multi-layer mica tape wrapping, which can be resistant to oxidation and corrosion in high temperature environment and can meet the requirements of stable operation at higher ambient temperature.

[0016] 2. The present application adopts a filling layer made of ceramic fiber cotton, which can position and reinforce multiple wire cores, and can effectively reduce the phenomenon of multiple wire cores being damaged by squeezing. It can effectively provide pressure-resistant buffering protection for multiple wire cores. By utilizing the buffer layer, the pressure-resistant buffering performance of the soft wire can be further improved.

[0017] 3. This application can further improve the high temperature resistance of the soft wire by using an outer protective layer and an inner protective layer, and can improve the puncture resistance of the soft wire by using an anti-puncture layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application, 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 present application. 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 three-dimensional structure of this embodiment.

[0020] Figure 2 It is a schematic diagram of the main cross-sectional structure of this embodiment.

[0021] Figure 3 It is a schematic diagram of the main cross-sectional structure of the sheath.

[0022] In the figure, 1. sheath; 11. outer protective layer; 12. anti-puncture layer; 13. buffer layer; 14. inner protective layer; 2. wire core; 21. conductor; 22. insulating sleeve; 3. waterproof coating; 4. tape layer; 5. filling layer. DETAILED DESCRIPTION

[0023] The technical solution of the present application will be clearly and completely described below in conjunction with specific embodiments. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments of the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present application.

[0024] See also Figure 1 , Figure 2 and Figure 3 The present application provides a high temperature resistant soft wire, comprising a sheath 1 and a plurality of wire cores 2. A waterproof coating 3 is fixedly connected to the inner wall of the sheath 1. The waterproof coating 3 is made of a waterproof silicone resin material, which can improve the waterproof performance of the soft wire. A tape layer 4 is fixedly connected to the inner wall of the waterproof coating 3. The plurality of wire cores 2 are all located in the tape layer 4. A filling layer 5 is arranged between the plurality of wire cores 2 and the tape layer 4. The filling layer 5 is made of a ceramic fiber cotton material. The plurality of wire cores 2 can be positioned and reinforced by the filling layer 5. The ceramic fiber cotton is resistant to high temperature, lightweight, corrosion-resistant, anti-oxidation, has low thermal conductivity, is insulated, and has good elasticity. It can effectively reduce the phenomenon that the plurality of wire cores 2 are damaged by extrusion, thereby improving the performance of the soft wire.

[0025] The wire core 2 includes a conductor 21 and an insulating sleeve 22. The insulating sleeve 22 is fixedly connected to the outer wall of the conductor 21. The conductor 21 is made of a plurality of nickel-plated copper wires of the same diameter twisted concentrically, and the twisting directions of adjacent twisted layers are opposite, thereby increasing the compactness of the conductor 21 and enhancing the softness of the conductor 21. At the same time, the use of nickel-plated copper wire can meet higher ambient temperatures, can maintain stable operation in high-temperature environments below 600°C, and has oxidation resistance and corrosion resistance in high-temperature environments. The insulating sleeve 22 is made of multiple layers of mica tape. The mica tape has good high-temperature resistance and can maintain stable insulation performance for a long time at high temperatures. The mica tape has good corrosion resistance such as acid and alkali resistance, oil resistance, and water vapor resistance, and can work stably for a long time in harsh environments.

[0026] In this embodiment, the sheath 1 includes an outer protective layer 11, an anti-puncture layer 12, a buffer layer 13 and an inner protective layer 14. The anti-puncture layer 12 is fixedly connected to the inner wall of the outer protective layer 11, the buffer layer 13 is fixedly connected to the inner wall of the anti-puncture layer 12, and the inner protective layer 14 is fixedly connected to the inner wall of the buffer layer 13. The outer protective layer 11 and the inner protective layer 14 are both made of basalt fiber material. Basalt fiber is a new type of inorganic environmentally friendly green high-performance fiber material with high strength, corrosion resistance, high temperature resistance, high elastic modulus and tensile strength, high chemical stability and other excellent properties, thereby The sheath 1 made of basalt fiber material has greatly improved high temperature resistance, high temperature resistance and bending performance compared to traditional metal sheaths, and can be bent at will. The anti-puncture layer 12 is made of Kevlar material. Kevlar material has high tensile strength and compressive strength, and is resistant to high temperature, flame retardant, wear-resistant and corrosion-resistant. The anti-puncture layer 12 can be used to improve the anti-puncture performance of the soft wire. The buffer layer 13 is made of silicone material. The silicone material has good high temperature resistance, good elasticity and high plasticity. The buffer layer 13 can be used to improve the compressive buffering performance of the soft wire.

[0027] Through the above structure, the high-temperature resistant soft wire provided by the present application can be suitable for working stably in higher ambient temperatures, does not generate pollution when used, has little degradation in mechanical properties, and effectively extends the service life under high temperature conditions, thereby improving the high-temperature resistance of the soft wire, and also improving the puncture resistance and pressure buffering performance of the soft wire, which can better meet the use requirements. When used specifically, a conductor 21 is made of a plurality of nickel-plated copper wires of the same diameter and twisted concentrically, and an insulating sleeve 22 is made of multi-layer mica tape wrapping, which can have oxidation resistance and corrosion resistance in high temperature environments, and can meet the requirements of higher ambient temperatures. The invention can work stably, that is, it can maintain stable operation in a high temperature environment below 600°C; by adopting a filling layer 5 made of ceramic fiber cotton, multiple cores 2 can be positioned and reinforced, and by utilizing the good elastic characteristics of ceramic fiber cotton, the phenomenon that multiple cores 2 are squeezed and damaged can be effectively reduced, and multiple cores 2 can be effectively protected against pressure and buffering. By utilizing the buffer layer 13, the compressive buffering performance of the soft wire can be further improved. By utilizing the outer protective layer 11 and the inner protective layer 14, the high temperature resistance of the soft wire can be further improved. By utilizing the anti-puncture layer 12, the anti-puncture performance of the soft wire can be improved.

Claims

1. A high temperature resistant soft wire, characterized in that: The invention comprises a sheath (1) and a plurality of wire cores (2); a waterproof coating (3) is fixedly connected to the inner wall of the sheath (1); a tape layer (4) is fixedly connected to the inner wall of the waterproof coating (3); the plurality of wire cores (2) are all located in the tape layer (4); a filling layer (5) is provided between the plurality of wire cores (2) and the tape layer (4); the wire core (2) comprises a conductor (21) and an insulating sleeve (22); the insulating sleeve (22) is fixedly connected to the outer wall of the conductor (21).

2. A high temperature resistant flexible wire according to claim 1, characterized in that: The conductor (21) is made of a plurality of nickel-plated copper wires of the same diameter that are twisted concentrically.

3. A high temperature resistant flexible wire according to claim 1, characterized in that: The insulating sleeve (22) is made by wrapping multiple layers of mica tape.

4. A high temperature resistant flexible wire according to claim 1, characterized in that: The protective sheath (1) comprises an outer protective layer (11), an anti-puncture layer (12), a buffer layer (13) and an inner protective layer (14); the anti-puncture layer (12) is fixedly connected to the inner wall of the outer protective layer (11); the buffer layer (13) is fixedly connected to the inner wall of the anti-puncture layer (12); and the inner protective layer (14) is fixedly connected to the inner wall of the buffer layer (13).

5. A high temperature resistant flexible wire according to claim 4, characterized in that: The outer protective layer (11) and the inner protective layer (14) are both made of basalt fiber material.

6. A high temperature resistant flexible wire according to claim 4, characterized in that: The puncture-proof layer (12) is made of Kevlar material, and the buffer layer (13) is made of silicone material.

7. A high temperature resistant flexible wire according to claim 1, characterized in that: The waterproof coating (3) is made of waterproof silicone resin material.

8. A high temperature resistant flexible wire according to claim 1, characterized in that: The filling layer (5) is made of ceramic fiber cotton material.

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