Flexible aluminum alloy conductor temperature-resistant tear-resistant silicone rubber insulated cable

Abstract

The utility model discloses a flexible aluminum alloy conductor temperature-resistant tear-resistant silicone rubber insulated cable, and specifically relates to the insulated cable field, the cable comprises a plurality of conductors, the outer surface of each conductor is provided with an insulating layer, the outer surface of each insulating layer is wound with aramid fiber, the outer surface of each aramid fiber is provided with a braided shielding layer, and the braided shielding layer is provided with a flexible aluminum alloy conductor. And a fireproof silica gel layer is arranged on the outer surface of the braided shielding layer. According to the utility model, the tensile strength of the conductor can be improved through the aluminum alloy monofilament compound stranded layer, the conductor is prevented from being broken due to stretching through the reinforcing ribs, the single conductor is prevented from being damaged, the protection effect is improved, signals are shielded through the braided shielding layer, and the fireproof and temperature-resistant protection effects are realized through the fireproof silica gel layer, so that the service life of the cable is prolonged. The tensile strength is further improved through the silicone rubber rope, the shielding effect and the overall strength and toughness can be improved through the shielding layer, and the situation that the overall shielding effect is affected due to the fact that the shielding layer is woven or different positions of the shielding layer are torn is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of insulated cables, and more specifically to a flexible aluminum alloy conductor heat-resistant and tear-resistant silicone rubber insulated cable. Background Art

[0002] A cable is made of one or more mutually insulated conductors and an outer insulating protective layer. It is a wire that transmits electricity or information from one place to another. 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. In some mechanical industries, especially construction machinery, cables are indispensable tools for transmitting electricity. When the cable is in use, it sags due to gravity or is stretched with force, and the outer wall of the cable will be stretched and torn.

[0003] The utility model with Chinese patent application number CN201420066943.X discloses a fire-resistant and tear-resistant wind power generation soft cable. Under the premise of retaining the excellent physical and chemical properties of silicone rubber insulation, the aramid fiber braided layer strengthens the mechanical properties of the silicone rubber insulated cable, such as tear resistance and wear resistance. At the same time, the impregnated insulating varnish outside the aramid fiber effectively improves the tightness of the aramid fiber braiding, and the polyester non-woven fabric prevents the contact between the impregnated insulating varnish and the silicone rubber insulation, so that the utility model wind power generation soft cable has good fire resistance and tear resistance.

[0004] However, in actual use, the existing tensile and tear resistant cables only have an aramid fiber layer on the overall outer surface for tensile and tear protection. When the conductor is bent and stretched, the shielding layer is easily torn, thereby affecting the overall shielding effect, the overall protection strength, and the use effect. Utility Model Content

[0005] In order to overcome the above defects of the prior art, the utility model provides a flexible aluminum alloy conductor temperature-resistant and tear-resistant silicone rubber insulated cable to solve the problems raised in the above background technology.

[0006] To achieve the above object, the utility model provides the following technical solution: a flexible aluminum alloy conductor heat-resistant and tear-resistant silicone rubber insulated cable, comprising a plurality of conductors, an insulating layer is arranged on the outer surface of the conductor, aramid fibers are wound on the outer surface of the insulating layer, a braided shielding layer is arranged on the outer surface of the aramid fibers, a fire-resistant silicone layer is arranged on the outer surface of the braided shielding layer, and a plurality of silicone rubber ropes are arranged on the outer surface of the fire-resistant silicone layer;

[0007] It can be seen that the insulation layer is used to insulate multiple conductors, the aramid fiber is used to enhance the tensile strength of the overall cable, the braided shielding layer is used to shield the signal, the fire-resistant silicone layer is used to achieve fire-resistant and temperature-resistant protection, and the silicone rubber rope is used to further improve the tensile and tearing strength;

[0008] The outer surface of the silicone rubber rope is provided with a shielding layer, the outer surface of the shielding layer is provided with a tape layer, and the outer surface of the tape layer is provided with a protective coating;

[0009] It can be seen that the shielding effect can be improved by the shielding layer, and the protective wrapping by the tape layer can improve the use effect, and the outer surface of the cable can be protected by the protective coating to avoid the overall aesthetics and usability affected by scratches, thereby improving the use effect;

[0010] The outer surface of the conductor is provided with an aluminum alloy single-filament multi-twisted layer, and the middle part of the insulating layer is provided with a plurality of reinforcing ribs;

[0011] It can be seen that the tensile and tearing strength of the conductor can be improved by using the aluminum alloy monofilament twisted layer, and the conductor breakage caused by stretching can be avoided by using the reinforcement ribs, thereby improving the use effect.

[0012] Preferably, the aluminum alloy single-filament multi-twisted layer and the reinforcing ribs are distributed at intervals in the middle of the insulating layer, and the reinforcing ribs are arranged between the multiple conductors;

[0013] It can be seen that the uniform distribution of the reinforcing ribs can prevent damage to a single conductor and improve the overall use effect.

[0014] Preferably, the aluminum alloy monofilament multi-twisted layer is wrapped around the outer surface of the conductor, and the aramid fiber is wound on the outer surface of the insulating layer;

[0015] It can be seen that by protecting the conductor through the aluminum alloy monofilament twisted layer and protecting the insulation layer through aramid fiber, the tensile and tear strength can be improved, the protective strength of the insulation layer, reinforcement ribs and the aluminum alloy monofilament twisted layer can be improved, and the use effect can be improved.

[0016] Preferably, the material of the insulating layer is set to be polyester fiber material, and the aramid fiber is made by winding a plurality of aramid fiber filaments;

[0017] It can be seen that the insulating layer provided can enhance the insulation strength and the overall elasticity and heat resistance, improve the use effect, and improve the toughness and strength of the aramid fiber, thereby improving the use effect.

[0018] Preferably, the fire-resistant silicone layer is closely arranged on the outer surface of the braided shielding layer, and a plurality of the silicone rubber ropes are evenly distributed on the outer surface of the fire-resistant silicone layer;

[0019] It can be seen that the braided shielding layer is protected and heat-resistant by the fire-resistant silicone layer, and the fire-resistant silicone layer is protected by the silicone rubber rope. The shielding effect, the overall strength and toughness are improved through the cooperation of the shielding layer and the braided shielding layer.

[0020] Preferably, the braided shielding layer is wrapped around the outer surface of the aramid fiber and the insulating layer, and the braided shielding layer is configured as a galvanized copper wire braided component;

[0021] It can be seen that the transmission signal of the conductor is shielded by setting the braided shielding layer, and the strength of the braided shielding layer is improved, so that the braided shielding layer is prevented from being torn to affect the shielding effect, thereby improving the use effect.

[0022] Technical effects and advantages of the utility model:

[0023] 1. The utility model can improve the tensile tear strength of the conductor through the aluminum alloy single-filament twisted layer, and avoid the conductor from being broken due to stretching through the reinforcing ribs. At the same time, it can avoid damage to a single conductor and improve the protection effect. The signal is shielded by the woven shielding layer, and the fire-resistant silicone layer is used to achieve the function of fire-resistant and temperature-resistant protection. The tensile tear strength is further improved by the silicone rubber rope. The shielding layer can improve the shielding effect and the overall strength and toughness, and avoid the woven shielding layer or different positions of the shielding layer being torn to affect the overall shielding effect.

[0024] 2. The utility model also enhances the insulation strength and overall elasticity and heat resistance of multiple conductors through the insulating layer, thereby improving the use effect, and improving the toughness and strength of the aramid fiber. The aramid fiber is used to protect the insulating layer, which can improve the tensile and tearing strength, and the tape layer is used for protective wrapping, thereby improving the use effect. The protective coating provided can protect the outer surface of the cable, thereby preventing scratches from affecting the overall aesthetics and usability, thereby improving the use effect.

[0025] In summary, through the mutual influence of the above-mentioned multiple effects, the overall tear strength and signal shielding effect of the cable can be improved, and the overall toughness and temperature resistance can be improved, thereby improving the use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0027] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model.

[0028] Figure 3 It is a schematic diagram of the connection structure between the insulation layer and the aramid fiber of the utility model.

[0029] The figures are marked as follows: 1. conductor; 2. aluminum alloy monofilament twisted layer; 3. reinforcing ribs; 4. insulating layer; 5. aramid fiber; 6. braided shielding layer; 7. fire-resistant silicone layer; 8. silicone rubber rope; 9. shielding layer; 10. tape layer; 11. protective coating. DETAILED DESCRIPTION

[0030] 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.

[0031] As attached Figure 1-3 The flexible aluminum alloy conductor heat-resistant and tear-resistant silicone rubber insulated cable shown comprises a plurality of conductors 1, an insulating layer 4 is arranged on the outer surface of the conductor 1, aramid fiber 5 is wound around the outer surface of the insulating layer 4, a braided shielding layer 6 is arranged on the outer surface of the aramid fiber 5, a fire-resistant silicone layer 7 is arranged on the outer surface of the braided shielding layer 6, and a plurality of silicone rubber ropes 8 are arranged on the outer surface of the fire-resistant silicone layer 7;

[0032] The outer surface of the silicone rubber rope 8 is provided with a shielding layer 9, the outer surface of the shielding layer 9 is provided with a wrapping layer 10, the outer surface of the wrapping layer 10 is provided with a protective coating 11, the outer surface of the conductor 1 is provided with an aluminum alloy single-filament twisted layer 2, and a plurality of reinforcing ribs 3 are provided in the middle of the insulating layer 4.

[0033] As attached Figure 1-3 As shown, the aluminum alloy monofilament multi-twisted layer 2 and the reinforcing ribs 3 are spaced apart in the middle of the insulating layer 4, the reinforcing ribs 3 are arranged between the plurality of conductors 1, the aluminum alloy monofilament multi-twisted layer 2 is wrapped around the outer surface of the conductor 1, the aramid fiber 5 is wrapped around the outer surface of the insulating layer 4, the material of the insulating layer 4 is set to be a polyester fiber material, the aramid fiber 5 is made of a plurality of aramid fiber filaments, the fire-resistant silicone layer 7 is closely arranged on the outer surface of the braided shielding layer 6, a plurality of silicone rubber ropes 8 are evenly distributed on the outer surface of the fire-resistant silicone layer 7, the braided shielding layer 6 is wrapped around the aramid fiber The outer surface of the fiber 5 and the insulating layer 4 is provided with a braided shielding layer 6 which is a galvanized copper wire braided component, so that the tensile and tearing strength of the conductor 1 can be improved through the aluminum alloy monofilament multiple twisted layer 2, and the conductor 1 can be prevented from being broken due to stretching through the reinforcing ribs 3. At the same time, damage to a single conductor 1 can be avoided, and the overall use effect can be improved. The insulation strength and the overall elasticity and heat resistance of multiple conductors 1 can be enhanced through the insulating layer 4, and the use effect can be improved. The toughness and strength of the aramid fiber 5 can be improved, and the insulating layer 4 can be protected by the aramid fiber 5, which can improve the tensile and tearing strength;

[0034] The signal is shielded by the braided shielding layer 6, and the strength of the braided shielding layer 6 is improved to prevent the braided shielding layer 6 from being torn and affecting the shielding effect. The fire-resistant silicone layer 7 realizes the fire-resistant and heat-resistant protection, and the silicone rubber rope 8 further improves the tensile and tearing strength. The shielding layer 9 can improve the shielding effect and the overall strength and toughness, and the wrapping layer 10 is used for protective wrapping to improve the use effect. The protective coating 11 is set to protect the outer surface of the cable to avoid scratches that affect the overall aesthetics and usability, thereby improving the use effect.

[0035] Working principle of the utility model: when in use, the aluminum alloy single-filament multi-twisted layer 2 is wrapped around the outer surface of the conductor 1 to improve the tensile and tearing strength of the conductor 1, and multiple conductors 1 and a plurality of reinforcing ribs 3 are combined into one body and covered with an insulating layer 4, so as to further increase the length of the conductor 1, avoid damage to a single conductor 1, and improve the overall use effect. The insulating layer 4 enhances the insulation strength and the overall elasticity and heat resistance of the multiple conductors 1, thereby improving the use effect;

[0036] Then, multiple aramid fibers 5 are wound around the outer surface of the insulating layer 4 to further improve the tensile and tear strength, and then the braided shielding layer 6 is put on the outer surface of the aramid fiber 5 to shield the signal, and a fire-resistant silicone layer 7 is put on to achieve fire-resistant and heat-resistant protection, and then multiple silicone rubber ropes 8 are distributed on the outer surface of the fire-resistant silicone layer 7 and a shielding layer 9 is put on to limit the silicone rubber rope 8, thereby improving the shielding effect and the overall strength and toughness, and further protective wrapping is performed through the wrapping layer 10 and the protective coating 11 to improve the use effect.

[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A flexible aluminum alloy conductor heat-resistant and tear-resistant silicone rubber insulated cable, comprising a plurality of conductors (1), characterized in that: The conductor (1) is provided with an insulating layer (4) on its outer surface, aramid fibers (5) are wound around the outer surface of the insulating layer (4), a braided shielding layer (6) is provided on the outer surface of the aramid fibers (5), a fire-resistant silicone layer (7) is provided on the outer surface of the braided shielding layer (6), and a plurality of silicone rubber ropes (8) are provided on the outer surface of the fire-resistant silicone layer (7); The outer surface of the silicone rubber rope (8) is provided with a shielding layer (9), the outer surface of the shielding layer (9) is provided with a tape layer (10), and the outer surface of the tape layer (10) is provided with a protective coating (11); The outer surface of the conductor (1) is provided with an aluminum alloy single-filament multi-twisted layer (2), and the middle part of the insulating layer (4) is provided with a plurality of reinforcing ribs (3).

2. The flexible aluminum alloy conductor heat-resistant and tear-resistant silicone rubber insulated cable according to claim 1, characterized in that: The aluminum alloy single-filament multi-twisted layer (2) and the reinforcing ribs (3) are distributed at intervals in the middle of the insulating layer (4), and the reinforcing ribs (3) are arranged between the plurality of conductors (1).

3. The flexible aluminum alloy conductor heat-resistant and tear-resistant silicone rubber insulated cable according to claim 1, characterized in that: The aluminum alloy monofilament multi-twisted layer (2) is wrapped around the outer surface of the conductor (1), and the aramid fiber (5) is wound and arranged on the outer surface of the insulating layer (4).

4. The flexible aluminum alloy conductor heat-resistant and tear-resistant silicone rubber insulated cable according to claim 1, characterized in that: The material of the insulating layer (4) is set to be a polyester fiber material, and the aramid fiber (5) is made by winding a plurality of aramid fiber filaments.

5. The flexible aluminum alloy conductor heat-resistant and tear-resistant silicone rubber insulated cable according to claim 1, characterized in that: The fire-resistant silicone layer (7) is arranged closely on the outer surface of the braided shielding layer (6), and a plurality of silicone rubber ropes (8) are evenly distributed on the outer surface of the fire-resistant silicone layer (7).

6. The flexible aluminum alloy conductor heat-resistant and tear-resistant silicone rubber insulated cable according to claim 1, characterized in that: The braided shielding layer (6) is wrapped around the outer surface of the aramid fiber (5) and the insulating layer (4), and the braided shielding layer (6) is configured as a galvanized copper wire braided component.

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