High-temperature-resistant cable

Abstract

The utility model relates to the technical field of cable structures, in particular to a high-temperature-resistant cable. According to the technical scheme, the cable comprises a conductor, the periphery of the conductor is fixedly sleeved with a heat dissipation layer, the periphery of the heat dissipation layer is fixedly sleeved with an insulating layer, the periphery of the insulating layer is fixedly sleeved with an inner shielding layer, the periphery of the inner shielding layer is fixedly sleeved with a fireproof layer, the periphery of the fireproof layer is fixedly sleeved with an outer shielding layer, and the periphery of the outer shielding layer is fixedly sleeved with a corrosion-resistant layer. The periphery of the corrosion-resistant layer is fixedly sleeved with a buffer assembly, the buffer assembly comprises an inner buffer layer fixedly arranged on the periphery of the corrosion-resistant layer in a sleeving mode, the periphery of the inner buffer layer is evenly and fixedly connected with a plurality of buffer ribs, the ends, away from the inner buffer layer, of the buffer ribs are jointly and fixedly connected with an outer buffer layer, and a buffer cavity is formed between every two adjacent buffer ribs. Elements in the inner buffer layer can be effectively protected, the service life of the device is prolonged, and the high temperature resistance of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cable structures, in particular to a high-temperature resistant cable. Background Art

[0002] Cables include power cables, control cables, compensating cables, shielded cables, high-temperature cables, computer cables, signal cables, coaxial cables, fire-resistant cables, marine cables, mining cables, aluminum alloy cables, etc. They are all composed of single-strand or multi-strand wires and insulating layers, and are used to connect circuits, electrical appliances, etc. High-temperature resistant wires and cables are cables that can normally transmit signals or electrical energy at high temperatures.

[0003] In the prior art, the patent number is: CN212542006U discloses a high-temperature resistant cable, belonging to the technical field of cables. A high-temperature resistant cable includes a reflective coating, and a sheath layer is sleeved inside the reflective coating, and a waterproof layer is sleeved inside the sheath layer, and a first heat insulation layer is sleeved inside the waterproof layer, and a second heat insulation layer is sleeved inside the heat insulation layer, and a cable assembly is sleeved inside the second heat insulation layer. The cable assembly includes several groups of third heat insulation layers, and a cable core protection layer is sleeved inside each group of third heat insulation layers, and a cable core is arranged inside the cable core protection layer. An endothermic tube is arranged at the center of the cable assembly, and a liquid nitrogen tube is arranged inside the endothermic tube; the utility model effectively solves the problem of the use of the cable under high-temperature exposure, prevents the cable from malfunctioning or stopping working due to long-term exposure, and at the same time prolongs the service life of the cable, which is beneficial to saving manpower and material resources.

[0004] Although the above high-temperature resistant cable can reduce the temperature of the cable during operation through the settings of the endothermic tube and the liquid nitrogen tube, etc., in actual applications, there are still the following deficiencies. When the cable is externally squeezed, the internal components are extremely vulnerable to impact damage, resulting in a reduced service life of the cable. Summary of the Utility Model

[0005] The purpose of the present utility model is to propose a high-temperature resistant cable aiming at the problems existing in the background art.

[0006] To achieve this purpose, the present utility model adopts the following technical solutions: A high-temperature resistant cable includes a conductor, a heat dissipation layer is fixedly sleeved outside the conductor, an insulating layer is fixedly sleeved outside the heat dissipation layer, an inner shielding layer is fixedly sleeved outside the insulating layer, a fireproof layer is fixedly sleeved outside the inner shielding layer, an outer shielding layer is fixedly sleeved outside the fireproof layer, a corrosion-resistant layer is fixedly sleeved outside the outer shielding layer, and a buffer assembly is fixedly sleeved outside the corrosion-resistant layer. The buffer assembly includes an inner buffer layer fixedly sleeved outside the corrosion-resistant layer, and a plurality of buffer ribs are uniformly and fixedly connected to the outside of the inner buffer layer. The ends of the buffer ribs far away from the inner buffer layer are commonly fixedly connected to form an outer buffer layer, and a buffer cavity is formed between every two adjacent buffer ribs.

[0007] Preferably, a plurality of semi-circular grooves are formed in the periphery of the outer buffer layer, and heat dissipation rubber strips are fixedly connected in the semi-circular grooves.

[0008] Preferably, the insulating layer is made of silicone rubber.

[0009] Preferably, the inner shielding layer is a tinned copper wire mesh.

[0010] Preferably, the fireproof layer is made of chloroprene rubber.

[0011] Preferably, an aluminum foil film is sprayed on the outer surface of the outer shielding layer.

[0012] Preferably, the corrosion-resistant layer is made of fluororubber.

[0013] The beneficial effects of the present utility model are as follows: when the device is externally squeezed, the outer buffer layer and the buffer ribs will deform, and the outer buffer layer will collapse into the buffer cavity, avoiding the external impact force directly acting on the components inside the inner buffer layer. When the extrusion disappears, the buffer ribs and the outer buffer layer return to their original states simultaneously, effectively protecting the components inside the inner buffer layer and increasing the service life of the device; when the conductor generates high heat during operation and transfers it to the outer buffer layer, the heat dissipation rubber strips in the semi-circular grooves on the periphery of the outer buffer layer can quickly absorb the heat on the outer buffer layer and dissipate it. At the same time, the corrosion-resistant layer made of fluororubber and the fireproof layer made of chloroprene rubber can increase the high-temperature resistance of the device. Description of the Drawings

[0014] Figure 1 is a schematic diagram of the overall structure of an embodiment of a high-temperature resistant cable of the present utility model;

[0015] Figure 2 is a schematic cross-sectional view of the overall structure of an embodiment of a high-temperature resistant cable of the present utility model;

[0016] Figure 3 is a schematic diagram of the overall structure of a buffer assembly in an embodiment of a high-temperature resistant cable of the present utility model.

[0017] Reference numerals: 1, conductor; 2, heat dissipation layer; 3, insulating layer; 4, inner shielding layer; 5, fireproof layer; 6, outer shielding layer; 7, corrosion-resistant layer; 8, buffer assembly; 81, inner buffer layer; 82, buffer rib; 83, outer buffer layer; 84, buffer cavity; 85, heat dissipation rubber strip. Detailed Embodiments

[0018] The present utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only for explaining the present utility model, rather than limiting the present utility model. Additionally, it should be noted that for the convenience of description, only the parts related to the present utility model rather than all the structures are shown in the drawings.

[0019] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0020] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "above and to the right of", and "on top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is at a higher horizontal level than the second feature. The first feature being "below", "below and to the left of", and "beneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or simply means that the first feature is at a lower horizontal level than the second feature.

[0021] In the description of this embodiment, the orientation or positional relationships such as "above", "below", "right", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning. Embodiment 1

[0022] As Figures 1 - 3As shown in the figure, a high-temperature resistant cable proposed by the present utility model includes a conductor 1. A heat dissipation layer 2 is fixedly sleeved on the periphery of the conductor 1. An insulating layer 3 is fixedly sleeved on the periphery of the heat dissipation layer 2. An inner shielding layer 4 is fixedly sleeved on the periphery of the insulating layer 3. A fireproof layer 5 is fixedly sleeved on the periphery of the inner shielding layer 4. An outer shielding layer 6 is fixedly sleeved on the periphery of the fireproof layer 5. A corrosion-resistant layer 7 is fixedly sleeved on the periphery of the outer shielding layer 6. A buffer assembly 8 is fixedly sleeved on the periphery of the corrosion-resistant layer 7. The buffer assembly 8 includes an inner buffer layer 81 fixedly sleeved on the periphery of the corrosion-resistant layer 7. A plurality of buffer ribs 82 are evenly and fixedly connected to the periphery of the inner buffer layer 81. The ends of the buffer ribs 82 away from the inner buffer layer 81 are commonly fixedly connected to form an outer buffer layer 83. A buffer cavity 84 is formed between every two adjacent buffer ribs 82.

[0023] In this embodiment: A plurality of semi-circular grooves are formed on the periphery of the outer buffer layer 83, and heat dissipation rubber strips 85 are fixedly connected in the semi-circular grooves. Through this setting, the overall heat dissipation capacity of the device can be increased, and the reduction of the device life caused by the high temperature generated by the operation of the conductor 1 can be avoided; The insulating layer 3 is made of silicone rubber. Silicone rubber has good insulation properties and is suitable for the sealing and insulation of electronic devices. At the same time, silicone rubber has good chemical resistance and can withstand the erosion of various chemical substances. Silicone rubber has excellent high-temperature and low-temperature resistance. It can work continuously at a temperature of up to 180 °C, and can even maintain elasticity for several weeks or longer at a temperature slightly higher than 200 °C. At the same time, silicone rubber has good low-temperature resistance and can generally still work at -55 °C; The inner shielding layer 4 is a tinned copper wire mesh. Tinned copper wires can suppress the radiation of electromagnetic waves, reduce the influence on the surrounding environment and other devices, and inhibit the external interference of electromagnetic waves. Embodiment Two

[0024] As Figures 1 - 3 As shown in the figure, a high-temperature resistant cable proposed by the present utility model, compared with Embodiment One, the fireproof layer 5 is made of chloroprene rubber. Chloroprene rubber has good physical and mechanical properties, oil resistance, heat resistance, flame resistance, sunlight resistance and other properties, which can effectively avoid the damage of high temperature to the components inside the fireproof layer 5; A layer of aluminum foil film is sprayed on the outer surface of the outer shielding layer 6. The aluminum foil film has excellent shielding effect. At the same time, the aluminum foil film also has extremely strong heat resistance and can withstand a high temperature of nearly 260 °C, increasing the shielding effect of the device and also increasing the heat resistance of the device; The corrosion-resistant layer 7 is made of fluororubber. Fluororubber is a kind of rubber material with excellent high-temperature resistance, corrosion resistance and chemical resistance. The high temperature resistance of fluororubber can reach 300 °C, making the device have the characteristics of high-temperature resistance while being corrosion-resistant.

[0025] Working principle: When the device is extruded by an external force, the outer buffer layer 83 and the buffer ribs 82 will deform. The outer buffer layer 83 will collapse into the buffer cavity 84, preventing the external impact force from directly acting on the components inside the inner buffer layer 81. When the extrusion disappears, the buffer ribs 82 and the outer buffer layer 83 will return to their original states simultaneously, effectively protecting the components inside the inner buffer layer 81. When the conductor 1 generates high heat during operation and transfers it to the outer buffer layer 83, the heat dissipation rubber strip 85 in the semi-circular groove on the periphery of the outer buffer layer 83 can quickly absorb the heat on the outer buffer layer 83 and dissipate it, preventing the device from overheating during use and reducing its service life.

[0026] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, rather than limiting the implementation manners of the present invention. For those of ordinary skill in the art, various obvious changes, re-adjustments, and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent substitutions, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A high temperature resistant cable, comprising a conductor (1), characterized in that: The outer fixed sleeve of the conductor (1) is provided with a heat dissipation layer (2), the outer fixed sleeve of the heat dissipation layer (2) is provided with an insulating layer (3), the outer fixed sleeve of the insulating layer (3) is provided with an inner shielding layer (4), the outer fixed sleeve of the inner shielding layer (4) is provided with a fireproof layer (5), the outer fixed sleeve of the fireproof layer (5) is provided with an outer shielding layer (6), the outer fixed sleeve of the outer shielding layer (6) is provided with a corrosion-resistant layer (7), the outer fixed sleeve of the corrosion-resistant layer (7) is provided with a buffer assembly (8), the buffer assembly (8) comprises an inner buffer layer (81) fixedly sleeved on the outer periphery of the corrosion-resistant layer (7), a plurality of buffer ribs (82) are uniformly fixedly connected to the outer periphery of the inner buffer layer (81), one end of the buffer ribs (82) away from the inner buffer layer (81) is fixedly connected to the outer buffer layer (83), and a buffer cavity (84) is formed between every two adjacent buffer ribs (82).

2. A high temperature resistant cable according to claim 1, characterized in that: A plurality of semi-arc grooves are provided on the periphery of the outer buffer layer (83), and heat dissipation rubber strips (85) are fixedly connected in the semi-arc grooves.

3. A high temperature resistant cable according to claim 1, characterized in that: The insulating layer (3) is made of silicone rubber.

4. A high temperature resistant cable according to claim 1, characterized in that: The inner shielding layer (4) is a tinned copper wire mesh.

5. A high temperature resistant cable according to claim 1, characterized in that: The fireproof layer (5) is made of chloroprene rubber.

6. A high temperature resistant cable according to claim 1, characterized in that: The outer surface of the outer shielding layer (6) is sprayed with a layer of aluminum foil.

7. A high temperature resistant cable according to claim 1, characterized in that: The corrosion-resistant layer (7) is made of fluororubber.

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