High-temperature-resistant anti-cracking power cable

Abstract

The invention discloses a high-temperature-resistant anti-cracking power cable, and relates to the technical field of cables, the high-temperature-resistant anti-cracking power cable comprises a cable core, a protection assembly is arranged on the surface of the cable core, the cable core comprises a plurality of rubber rings and steel sheets, the rubber rings are uniformly distributed on the surface of the cable core and provide flexibility and anti-cracking capability for the cable, and the steel sheets enhance the structural strength of the cable. The protection assembly is sleeved with a fiber corrugated pipe, the stability of the cable during bending is guaranteed, meanwhile, the heat dissipation performance is enhanced, the outer layer insulation sleeve is made of a cross-linked polyethylene material, the excellent electrical insulation performance is provided, and the assembly assembly is a system composed of two assembly rings, a limiting ring, a reset spring and a top ring, so that the cable can be stably fixed during connection, and the service life of the cable is prolonged. The reset spring provides necessary elasticity for the limiting ring, and the design of the trigger inclined surface between the top ring and the assembly ring ensures that the limiting ring can effectively extend out and complete fixation in the connection process, so that the mechanical strength and durability of the cable are improved, and the safety and stability of the cable in a high-temperature environment are ensured.

Description

Technical Field

[0001] The invention relates to the technical field of cables, in particular to a high temperature resistant and crack resistant power cable. Background Art

[0002] A cable is a device for transmitting electrical energy or signals, usually consisting of several or several groups of wires; In the prior art, a Chinese patent with publication number CN103021538A discloses a cable that prevents cable core breakage, including an outer protective sheath, a cable core and a filler, wherein the cable core includes multiple conductors and an insulating layer, and the conductors are wrapped with insulating layers to form a woven mesh, and the filler has a certain degree of softness. In the above manner, the cable core breakage prevention device of the present invention can have bending durability and windability; When the above-mentioned cable is in use and is squeezed, although the mesh design can increase the bending durability, the mesh structure of the insulation layer may be destroyed when it is squeezed or affected by external forces. This will affect the insulation performance of the cable and may cause electrical short circuits or insulation failure. Existing designs may not provide sufficient mechanisms to stabilize the connection of multiple cables, which may cause the cables to move or fall off easily during use, thereby affecting their overall performance and stability. In addition, the soft filler may lose its original physical properties in a high temperature environment, affecting the overall high temperature resistance and performance stability of the cable. This may cause the cable to heat up too much during power transmission, thereby affecting the reliability and safety of the cable. To this end, we propose a high temperature resistant and crack-proof power cable to solve the above problems. Summary of the invention

[0003] The object of the present invention is to provide a high temperature resistant and crack resistant power cable to solve the problems raised in the above background technology.

[0004] In order to achieve the above-mentioned invention object, the present invention adopts the following technical scheme: The present invention provides a high temperature resistant and crack resistant power cable, comprising a cable core, wherein a protective component for cooling and enhancing the overall structural strength is sleeved on the surface of the cable core, an assembly component for connecting and stabilizing a plurality of cables is sleeved on the surface of the protective component, wherein the protective component comprises a plurality of rubber rings, wherein the rubber rings are sleeved on the surface of the cable core, a plurality of steel sheets are fixedly connected to the outer ring wall of the rubber ring, a fiber bellows for enhancing the overall flexibility is arranged between the plurality of rubber rings, an insulating sleeve is sleeved on the outer ring wall of the plurality of fiber bellows, a plurality of air inlets are provided on the surface of the insulating sleeve, a plurality of air outlets are simultaneously provided on the surface of the insulating sleeve, the air inlets and the air outlets are not mutually interpenetrating with the rubber ring, the insulating sleeve is made of cross-linked polyethylene, the assembly component comprises two assembly rings, wherein the assembly rings are sleeved on the surface of the insulating sleeve, The interior of the assembly ring is a hollow structure, and a limit ring is provided in the inner cavity of the assembly ring. The limit ring is slidably connected to the inner wall of the assembly ring, and the limit ring is fixedly connected to a fixing cylinder on one side of the interior of the assembly ring, and a reset spring is built in the fixing cylinder. A connecting seat is fixedly connected to the bottom of one end of the two assembly rings that are close to each other, and a connecting seat is fixedly connected to one side of the assembly ring. A connecting window is provided on one side of the assembly ring, and a top ring is provided on the side of the assembly ring close to the connecting window. One side of the top ring extends into the assembly ring through the connecting window, and the top ring is slidably connected to the inner ring wall of the assembly ring. A triggering inclined surface is provided on one side of the top ring inside the assembly ring, and the triggering inclined surface contacts with a side of the limit ring close to the reset spring. The straight-line distance between the triggering inclined surface and the other side decreases evenly along the direction in which the top ring points to the assembly ring, and the top ring is slidably connected to the limit ring through the triggering inclined surface.

[0005] Preferably, the plurality of rubber rings are evenly distributed along the length direction of the cable core, the inner ring wall of the rubber ring is in contact with the cable core, and the plurality of steel sheets are evenly distributed around the axis of the cable core.

[0006] Preferably, the fiber bellows is sleeved on the surface of the cable core, both ends of the fiber bellows are fixedly connected to rubber rings, and a plurality of rubber rings are connected through the fiber bellows.

[0007] Preferably, the insulating sleeve, the rubber ring, the fiber bellows and the cable core axis coincide with each other, the air inlet and the air outlet are interconnected, and a plurality of the air inlet and the air outlet are evenly distributed around the cable core axis.

[0008] Preferably, the insulating sleeve is slidably connected to the inner ring wall of the assembly ring, the limiting ring matches the curvature of the assembly ring, the limiting ring is sleeved on the surface of the insulating sleeve, and the outer wall of the insulating sleeve is slidably connected to the inner wall of the limiting ring.

[0009] Preferably, one end of the return spring is fixedly connected to the bottom of the inner cavity of the fixing cylinder, the return spring is placed in the assembly ring, and the other end of the return spring is fixedly connected to the bottom of the inner cavity of the assembly ring.

[0010] Preferably, the two assembly rings are symmetrically distributed along the axis of the connecting seat, the top ring matches the arc of the assembly ring, the top ring is sleeved on the surface of the insulating sleeve, and the inner ring wall of the top ring is not in direct contact with the insulating sleeve.

[0011] Preferably, a connecting plate is fixedly connected to the bottom of one end of the two top rings outside the assembly ring, and the two top rings are symmetrically distributed along the axis of the connecting plate, and the connecting plate and the connecting seat keep their axes coincident.

[0012] Preferably, a threaded hole is opened on one side of the connecting seat close to the connecting plate, a threaded roller is built into the threaded hole, the threaded roller is threadedly connected to the connecting seat through the threaded hole, and one end of the threaded roller away from the connecting seat passes through the connecting plate and extends to the outside.

[0013] Preferably, a hole is provided on the surface of the connection plate for the thread roller to pass through, the inner diameter of the hole is larger than the diameter of the thread roller, the thread roller is slidably connected to the connection plate, and a screw wheel is fixedly connected to one end of the thread roller away from the connection seat.

[0014] Compared with the prior art, one or more of the above technical solutions have the following beneficial effects: The core of the cable in the present invention is a cable core, and its surface is equipped with a protective component, including multiple rubber rings and steel sheets. The rubber rings are evenly distributed on the surface of the cable core, providing the cable with flexibility and crack resistance. The steel sheet enhances the structural strength of the cable. In order to further improve the flexibility, a fiber corrugated tube is sleeved on the protective component to ensure the stability of the cable when bending and enhance the heat dissipation performance. The outer insulating sleeve is made of cross-linked polyethylene material, and is provided with an air inlet and an air outlet that are interpenetrating with each other, which further increases the contact area between the cable and the passive heat dissipation, can withstand a short-term temperature of up to 150°C, provides excellent electrical insulation performance, effectively prevents short circuits and leakage, and the assembly component is designed to connect multiple cables to improve overall stability and durability. The system consisting of two assembly rings, a limit ring, a reset spring and a top ring enables the cable to be stably fixed when connected. The reset spring provides the necessary elasticity for the limit ring and can cooperate with the top ring to control the protrusion length of the limit ring. The trigger slope design between the top ring and the assembly ring ensures that the limit ring can effectively protrude and complete fixation during the connection process. The overall design not only improves the mechanical strength and durability of the cable, but also ensures the safety and stability of the cable in high temperature environments, making it suitable for high temperature power transmission applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the exploded structure of multiple parts of the present invention; Figure 3 It is a schematic diagram of the protective component and cable core assembly structure of the present invention; Figure 4 It is a schematic diagram of the structure of the protection component of the present invention; Figure 5 It is a schematic diagram of the assembly structure of the present invention; Figure 6 It is a schematic diagram of the exploded structure of the assembly component of the present invention; Figure 7 It is a schematic diagram of the assembly structure of the top ring and the limit ring of the present invention.

[0017] In the figure: 1. Cable core; 2. Protection component; 201. Rubber ring; 202. Steel sheet; 203. Fiber bellows; 204. Insulation sleeve; 205. Air inlet; 206. Air outlet; 3. Assembly component; 301. Assembly ring; 302. Limiting ring; 303. Fixing cylinder; 304. Reset spring; 305. Connecting window; 306. Top ring; 307. Triggering slope; 308. Connecting seat; 309. Threaded hole; 310. Connecting plate; 311. Threaded roller; 312. Twist wheel. DETAILED DESCRIPTION

[0018] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0019] See also Figure 1-Figure 7 The present invention provides a high temperature resistant and crack resistant power cable, comprising a cable core 1, a protective component 2 for cooling and enhancing the overall structural strength is sleeved on the surface of the cable core 1, an assembly component 3 for connecting and stabilizing multiple cables is sleeved on the surface of the protective component 2, and the cable system successfully achieves the requirements of high temperature resistance, crack resistance and high strength by comprehensively using the rubber ring 201, steel sheet 202, fiber bellows 203 and cross-linked polyethylene insulation material in the protective component 2. In addition, the precise design of the assembly component 3 ensures the stable connection between multiple cables, improves the overall durability and application flexibility of the system, and enhances the mechanical strength and durability of the cable.

[0020] The protective component 2 is provided with a plurality of rubber rings 201, which are sleeved on the surface of the cable core 1, and are evenly distributed along the length direction of the cable core 1. The inner ring wall of the rubber ring 201 is in contact with the cable core 1, and the outer ring wall of the rubber ring 201 is fixedly connected with a plurality of steel sheets 202, and the plurality of steel sheets 202 are evenly distributed around the axis of the cable core 1. A fiber bellows 203 for enhancing the overall flexibility is provided between the plurality of rubber rings 201, and the fiber bellows 203 is sleeved on the surface of the cable core 1, and both ends of the fiber bellows 203 are connected to the rubber ring 201. 1 is fixedly connected, multiple rubber rings 201 are connected by a fiber bellows 203, the outer ring wall of the fiber bellows 203 is sleeved with an insulating sleeve 204, the insulating sleeve 204, the rubber ring 201, the fiber bellows 203 and the cable core 1 axis coincide, a plurality of air inlets 205 are opened on the surface of the insulating sleeve 204, and a plurality of air exhaust ports 206 are opened on the surface of the insulating sleeve 204 at the same time, the air inlets 205 and the air exhaust ports 206 are mutually connected, and the plurality of air inlets 205 and the air exhaust ports 206 are evenly distributed around the cable core 1 axis, and the air inlets 205 and the air exhaust ports 206 are uniform ... 06 does not interpenetrate with the rubber ring 201, the insulating sleeve 204 is made of cross-linked polyethylene, and the design of multiple rubber rings 201 and the connected corrugated limit tube ensures the flexibility of the cable. The steel sheets 202 that are not connected to each other further enhance the structural strength of the cable and have an anti-cracking effect. The outermost insulating sleeve 204 is made of cross-linked polyethylene. The cross-linked structure of cross-linked polyethylene enables it to work stably for a long time at a higher temperature. It can generally withstand a continuous working temperature of 90°C and a short-term temperature of up to 150°C. This high temperature resistance makes cross-linked polyethylene suitable for applications in high temperature environments. Cross-linked polyethylene has excellent electrical insulation properties, which enables it to effectively prevent electrical short circuits and leakage phenomena, and ensure the safety and stability of the cable. The cross-linked polyethylene material is relatively wear-resistant and can maintain good performance when subjected to impact or mechanical pressure, thereby enhancing the mechanical strength and durability of the cable. At the same time, mutually interpenetrating air inlets 205 and exhaust ports 206 are provided, which further increase the contact area between the cable and passive heat dissipation and have a high temperature resistance effect.

[0021] In order to connect multiple cables to each other, stabilize the overall cable assembly, and further improve the overall durability, two assembly rings 301 are provided in the assembly component 3. The assembly ring 301 is sleeved on the surface of the insulating sleeve 204. The insulating sleeve 204 is slidably connected to the inner ring wall of the assembly ring 301. The interior of the assembly ring 301 is a hollow structure. A limit ring 302 is provided in the inner cavity of the assembly ring 301. The limit ring 302 is slidably connected to the inner wall of the assembly ring 301. The limit ring 302 matches the arc of the assembly ring 301. The limit ring 302 is sleeved on the surface of the insulating sleeve 204. The outer wall of the insulating sleeve 204 is connected to the inner wall of the limit ring 302. The limiting ring 302 is fixedly connected with a fixing cylinder 303 on one side inside the assembly ring 301, and a return spring 304 is built in the fixing cylinder 303. One end of the return spring 304 is fixedly connected to the bottom of the inner cavity of the fixing cylinder 303. The return spring 304 is placed in the assembly ring 301, and the other end of the return spring 304 is fixedly connected to the bottom of the inner cavity of the assembly ring 301. The bottom of one end of the two assembly rings 301 close to each other is fixedly connected with a connecting seat 308. The two assembly rings 301 are symmetrically distributed along the axis of the connecting seat 308. A connecting window 305 is opened on one side of the assembly ring 301. The assembly ring 301 is close to the connecting window 305. A top ring 306 is provided on one side of the top ring 306, and the top ring 306 matches the arc of the assembly ring 301. The top ring 306 is sleeved on the surface of the insulating sleeve 204, and the inner ring wall of the top ring 306 does not directly contact the insulating sleeve 204. One side of the top ring 306 extends into the assembly ring 301 through the connecting window 305. The top ring 306 is slidably connected with the inner ring wall of the assembly ring 301. A trigger slope 307 is provided on one side of the top ring 306 in the assembly ring 301. The trigger slope 307 contacts the side of the limit ring 302 close to the reset spring 304, and the straight-line distance between the trigger slope 307 and the other side is along the top ring 306 pointing to the direction of the assembly ring 301 The top ring 306 is slidably connected to the limit ring 302 through the trigger slope 307. The two top rings 306 are fixedly connected with a connecting plate 310 at the bottom of one end outside the assembly ring 301. The two top rings 306 are symmetrically distributed along the axis of the connecting plate 310. The connecting plate 310 and the connecting seat 308 keep the axis coincident. A threaded hole 309 is opened on the side of the connecting seat 308 close to the connecting plate 310. A threaded roller 311 is built in the threaded hole 309. The threaded roller 311 is threadedly connected to the connecting seat 308 through the threaded hole 309. The end of the threaded roller 311 away from the connecting seat 308 passes through the connecting plate 310 and extends to the outside. The surface of the connecting plate 310 is provided with a hole for the thread roller 311 to pass through. The inner diameter of the hole is larger than the diameter of the thread roller 311. The thread roller 311 is slidably connected to the connecting plate 310. The end of the thread roller 311 away from the connecting seat 308 is fixedly connected with a screw wheel 312. In the initial stage, the limit ring 302 will not protrude from the assembly ring 301 under the drive of the return spring 304, so that the assembly ring 301 is convenient for sleeve connection on the surface of the adjacent cable. Then, the top ring 306 is inserted into the assembly ring 301. Under the structural characteristics of the trigger slope 307,As the top ring 306 enters the assembly ring 301, its limit ring 302 is squeezed out and cooperates with the assembly ring 301 to fix the adjacent cables. Multiple cables can be connected to each other through multiple assembly components 3.

[0022] How it works In actual use, the core of the cable is the cable core 1, on the surface of which is sleeved a protective component 2 for cooling and enhancing structural strength. The protective component 2 is composed of multiple rubber rings 201 and steel sheets 202. The rubber rings 201 are evenly distributed along the cable core 1, providing the cable with good flexibility and crack resistance. The design of the steel sheet 202 further enhances the structural strength of the cable; In order to improve the overall durability and performance, a fiber bellows 203 is also provided on the protection component 2 to enhance the flexibility of the cable. The design of the fiber bellows 203 enables the cable to maintain a certain stability when being bent, while ensuring good heat dissipation performance. The cross-linked polyethylene material of the insulating sleeve 204 performs well in high temperature environments, can withstand short-term temperatures of up to 150°C, and provides excellent electrical insulation performance, effectively preventing electrical short circuits and leakage.

[0023] The design of the assembly component 3 focuses on solving the connection and stability problems between multiple cables. The two assembly rings 301 cooperate with the limit ring 302, the return spring 304 and the top ring 306 to ensure that the cables can be stably connected during the assembly process. The return spring 304 provides the necessary elasticity and cooperates with the top ring 306 to control the extension length of the limit ring 302. The limit ring 302 can effectively clamp and fix the cable during the assembly process. The design of the trigger slope 307 between the top ring 306 and the assembly ring 301 ensures that the limit ring 302 can accurately extend and complete the fixation when connecting the cables.

[0024] The cable system successfully meets the requirements of high temperature resistance, crack resistance and high strength by comprehensively using rubber rings 201, steel sheets 202, fiber bellows 203 and cross-linked polyethylene insulation materials. The precise design of the assembly component 3 ensures a stable connection between multiple cables and improves the overall durability and application flexibility of the system. This design not only enhances the mechanical strength and durability of the cable, but also provides excellent electrical performance, making it suitable for power transmission applications in various high temperature environments.

[0025] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A high temperature resistant and crack resistant power cable, characterized in that: The invention comprises a cable core (1), wherein a protective component (2) for reducing temperature and enhancing overall structural strength is sleeved on the surface of the cable core (1), an assembly component (3) for connecting and stabilizing a plurality of cables is sleeved on the surface of the protective component (2), the protective component (2) comprises a plurality of rubber rings (201), the rubber rings (201) are sleeved on the surface of the cable core (1), a plurality of steel sheets (202) are fixedly connected to the outer ring wall of the rubber ring (201), a fiber corrugated tube (203) for enhancing overall flexibility is arranged between the plurality of rubber rings (201), and the outer ring walls of the plurality of fiber corrugated tubes (203) are The insulating sleeve (204) is sleeved with an insulating sleeve (204), a plurality of air inlets (205) are provided on the surface of the insulating sleeve (204), and a plurality of air outlets (206) are provided on the surface of the insulating sleeve (204), the air inlets (205) and the air outlets (206) are not interpenetrating with the rubber ring (201), the insulating sleeve (204) is made of cross-linked polyethylene, the assembly component (3) comprises two assembly rings (301), the assembly rings (301) are sleeved on the surface of the insulating sleeve (204), the interior of the assembly rings (301) is a hollow structure, and the inner cavity of the assembly rings (301) is provided with a limit position. The limiting ring (302) is slidably connected to the inner wall of the assembly ring (301); the limiting ring (302) is fixedly connected to a fixing cylinder (303) on one side inside the assembly ring (301); a return spring (304) is built into the fixing cylinder (303); a connecting seat (308) is fixedly connected to the bottom of one end of the two assembly rings (301) close to each other; a connecting window (305) is provided on one side of the assembly ring (301); a top ring (306) is provided on one side of the assembly ring (301) close to the connecting window (305); and a top ring (306) is provided on one side of the top ring (306). The top ring (306) extends into the assembly ring (301) through the communication window (305), and is slidably connected to the inner ring wall of the assembly ring (301). A trigger slope (307) is provided on one side of the top ring (306) inside the assembly ring (301). The trigger slope (307) contacts a side of the limit ring (302) close to the return spring (304). The straight-line distance between the trigger slope (307) and the other side decreases uniformly along the direction in which the top ring (306) points to the assembly ring (301). The top ring (306) is slidably connected to the limit ring (302) via the trigger slope (307).

2. A high temperature resistant and crack resistant power cable according to claim 1, characterized in that: The plurality of rubber rings (201) are evenly distributed along the length direction of the cable core (1); the inner ring wall of the rubber ring (201) is in contact with the cable core (1); and the plurality of steel sheets (202) are evenly distributed around the axis of the cable core (1).

3. A high temperature resistant and crack resistant power cable according to claim 1, characterized in that: The fiber bellows (203) is sleeved on the surface of the cable core (1), two ends of the fiber bellows (203) are fixedly connected to the rubber ring (201), and a plurality of the rubber rings (201) are connected via the fiber bellows (203).

4. A high temperature resistant and crack resistant power cable according to claim 1, characterized in that: The insulating sleeve (204), the rubber ring (201), the fiber bellows (203) and the cable core (1) have axes that coincide with each other; the air inlet (205) and the air outlet (206) are interconnected; and a plurality of the air inlets (205) and the air outlet (206) are evenly distributed around the axis of the cable core (1).

5. A high temperature resistant and crack resistant power cable according to claim 1, characterized in that: The insulating sleeve (204) is slidably connected to the inner ring wall of the assembly ring (301); the limiting ring (302) matches the arc of the assembly ring (301); the limiting ring (302) is sleeved on the surface of the insulating sleeve (204); and the outer wall of the insulating sleeve (204) is slidably connected to the inner wall of the limiting ring (302).

6. A high temperature resistant and crack resistant power cable according to claim 1, characterized in that: One end of the return spring (304) is fixedly connected to the bottom of the inner cavity of the fixing tube (303); the return spring (304) is placed in the assembly ring (301); and the other end of the return spring (304) is fixedly connected to the bottom of the inner cavity of the assembly ring (301).

7. A high temperature resistant and crack resistant power cable according to claim 1, characterized in that: The two assembly rings (301) are symmetrically distributed along the axis of the connection seat (308); the top ring (306) matches the arc of the assembly ring (301); the top ring (306) is sleeved on the surface of the insulating sleeve (204); and the inner ring wall of the top ring (306) does not directly contact the insulating sleeve (204).

8. A high temperature resistant and crack resistant power cable according to claim 1, characterized in that: The two top rings (306) are fixedly connected to a connecting plate (310) at the bottom of one end outside the assembly ring (301); the two top rings (306) are symmetrically distributed along the axis of the connecting plate (310); and the connecting plate (310) and the connecting seat (308) keep their axes coincident.

9. A high temperature resistant and crack resistant power cable according to claim 8, characterized in that: A threaded hole (309) is provided on one side of the connection seat (308) close to the connection plate (310), a threaded roller (311) is built into the threaded hole (309), the threaded roller (311) is threadedly connected to the connection seat (308) via the threaded hole (309), and one end of the threaded roller (311) away from the connection seat (308) passes through the connection plate (310) and extends to the outside.

10. A high temperature resistant and crack resistant power cable according to claim 9, characterized in that: The surface of the connection plate (310) is provided with a hole for the threaded roller (311) to pass through, the inner diameter of the hole being larger than the diameter of the threaded roller (311), the threaded roller (311) being slidably connected to the connection plate (310), and one end of the threaded roller (311) away from the connection seat (308) being fixedly connected to a screwing wheel (312).

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