Energy-saving copper alloy conductor power cable

Abstract

The invention discloses an energy-saving copper alloy conductor power cable, which is applied to the field of power cables, and can form a three-dimensional heat dissipation system in a cable main body through the composite heat dissipation design of the cable main body, avoid insulation aging caused by local overheating of the cable, and form a core transmission link of low resistance, high insulation and fast heat dissipation. Through the designed pressure bearing structure, a positive pressure environment is formed through dry gas to prevent moisture from invading, and through combination of mechanical buffering of the deformation adaptation assembly and real-time early warning of the pressure sensing assembly, a physical protection-environment isolation-fault monitoring three-dimensional protection system is constructed. And a complex laying environment is adapted.

Description

Technical Field

[0001] The invention belongs to the field of power cables, and in particular relates to an energy-saving copper alloy conductor power cable. Background Art

[0002] With the rapid development of social economy, the demand for electricity continues to grow, which puts higher requirements on the efficiency and energy saving of power transmission. In the power transmission system, power cables are key components, and their performance directly affects the transmission efficiency and quality of electric energy.

[0003] Although traditional copper conductor power cables have good conductivity, they have certain limitations in resource utilization and energy conservation. Although aluminum conductor cables can alleviate the problem of copper resource shortage to a certain extent, they have many performance defects such as low current carrying capacity and poor aging resistance. At present, common improvement methods such as the use of new copper alloys with high conductivity can improve conductivity to a certain extent, but there is still much room for improvement in further reducing resistance, improving heat dissipation efficiency and enhancing the overall performance of cables.

[0004] In addition, in the field of power transmission, the operating environment of power cables is becoming increasingly complex, and they often face problems such as mechanical external force extrusion, bending, and erosion in humid environments. The protective structures of traditional cables are mostly rigid or simple elastic structures. When subjected to large external forces, it is difficult to effectively buffer them, which can easily cause damage to the internal insulation layer, conductor, etc., thereby affecting the electrical performance and service life of the cable. In addition, in a humid environment, external moisture and humidity can easily penetrate into the cable, causing the insulation performance to deteriorate and increasing safety hazards such as leakage and short circuit. Summary of the Invention

[0005] The purpose of the present invention is to target an existing energy-saving copper alloy conductor power cable. Its advantage is that through the composite heat dissipation design of the cable body, a three-dimensional heat dissipation system can be formed inside the cable body, avoiding insulation aging caused by local overheating of the cable, and forming a core transmission link with low resistance, high insulation and fast heat dissipation, reducing heat loss and insulation aging risks in power transmission. Through the designed pressure-bearing structure, a positive pressure environment is formed by dry gas to prevent moisture intrusion. Combined with the mechanical buffering of the deformation-adaptive component and the real-time early warning of the pressure-sensing component, a three-dimensional protection system of physical protection, environmental isolation and fault monitoring is constructed to adapt to complex laying environments.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions: an energy-saving copper alloy conductor power cable, comprising a cable body, the cable body comprising a shielding layer, a heat dissipation layer disposed within the shielding layer, a main insulation layer disposed within the heat dissipation layer, a plurality of sub-insulating layers disposed within the main insulation layer, a conductor structure disposed within the sub-insulating layers, and a pressure-bearing structure disposed on the surface of the shielding layer; The pressure-bearing structure includes an inner sheath and an outer sheath, the inner sheath is arranged on the surface of the shielding layer, and the space between the inner sheath and the outer sheath is filled with dry gas to form a positive pressure environment, the top and bottom of the inner sheath surface are both sleeved with a plurality of connecting hoops, a connecting plate is arranged between the plurality of connecting hoops, a clamping assembly is arranged on one side of the connecting plate, and the clamping assembly is connected to the outer sheath, a deformation adaptation assembly is arranged between the clamping assembly and the connecting plate, and a plurality of pressure sensing assemblies are bolted to the side of the connecting plate close to the clamping assembly.

[0007] The above technical solution is adopted, by setting up a pressure-bearing structure, and filling dry gas (such as nitrogen) between the inner sheath and the outer sheath to form a micro-positive pressure. The air pressure difference is used to prevent external moisture and humidity from invading the interior of the cable through the gaps, thereby eliminating the risk of insulation moisture from the source; when the cable is squeezed or bent, the force on the outer sheath is transmitted to the connecting plate through the clamping component, driving the deformation adaptation component to move in coordination, and absorbing the impact energy through the spring deformation and the connecting rod mechanism to avoid the rigid stress from being transmitted to the cable body. The pressure sensing component senses the gas pressure changes between the inner sheath and the outer sheath, and monitors the air pressure in real time, which can trigger an alarm for pressure anomalies (leakage or overpressure). It can work without power supply and is suitable for power-free or explosion-proof scenarios.

[0008] The present invention is further configured as follows: the deformation adaptation component includes two sliders, which are slidably connected to the inside of the connecting plate, and the opposite sides of the two sliders are bolted with damping rods, and the side of the damping rod close to the inner wall of the connecting plate is connected to it, the surface of the damping rod is sleeved with a first spring, and the side of the first spring close to the slider and the inner wall of the connecting plate are respectively connected to the two, the bottom of the clamping assembly is clamped with a telescopic rod, and the bottom of the telescopic rod is connected to the inner wall of the connecting plate, the bottom of the surface of the telescopic rod is sleeved with a connecting sleeve, and the front and rear sides of the inside of the connecting sleeve are rotatably connected to a connecting rod, the other end of the connecting rod is rotatably connected to the slider, the surface of the telescopic rod is sleeved with a second spring, and the top and bottom of the second spring are respectively connected to the connecting sleeve and the inner wall of the connecting plate.

[0009] By adopting the above technical solution, a deformation adaptation component is set up. When the outer sheath is under pressure, the clamping component pushes the telescopic rod, causing the telescopic rod to be compressed and shortened, and synchronously drives the connecting sleeve to move downward. At the same time, the slider is pulled by the connecting rod to slide toward each other in the sliding groove, compressing the first spring and the second spring. The spring deformation absorbs energy, and the damping rod provides motion damping to reduce the impact speed. The deformation adaptation component adopts a double spring plus connecting rod mechanism to achieve two-way buffering. The damping rod suppresses the vibration amplitude to avoid rupture of the protective layer caused by instantaneous impact.

[0010] The present invention is further configured as follows: a sliding groove is opened inside the connecting plate, the slider is located inside the sliding groove, limiting protrusions are provided on both sides of the slider, and the surface of the limiting protrusion is in sliding contact with the inner wall of the connecting plate.

[0011] By adopting the above technical solution, the movement accuracy of the slider is ensured through the cooperation between the limiting protrusion and the sliding groove, preventing jamming or structural failure caused by lateral offset, and improving the durability of the deformation adaptation component.

[0012] The present invention is further configured as follows: the clamping assembly includes a reinforcing rib, the top of the reinforcing rib is connected to the outer sleeve and is integrally arranged with the outer sleeve, the bottom of the reinforcing rib is provided with a clamping protrusion, the surface of the clamping protrusion is sleeved with a fixing plate, and a plurality of tooth blocks are provided on both sides of the interior of the fixing plate, and a tooth groove for cooperating with the tooth block is provided on one side of the clamping protrusion corresponding to the tooth block, the tooth block is located inside the tooth groove, and an elastic plate is provided on the side of the tooth block close to the inner wall of the fixed plate, and a moving rod is provided between the plurality of elastic plates, and a contact plate is provided on both sides of the interior of the clamping protrusion, and the front end of the contact plate is fixedly connected to the clamping protrusion, and the other end is a free end.

[0013] By adopting the above technical solution, by setting up a clamping assembly, when the outer sleeve is installed, the clamping protrusion of the reinforcing rib can be aligned with the fixed plate and moved in the preset groove inside it. During the movement, the contact plate first presses the tooth block, and uses the elasticity of the elastic plate to deform the tooth block toward the inside of the fixed plate, so that the subsequent tooth groove can move to the position of the tooth block. After the contact plate is separated from the tooth block, the tooth block is elastically deformed under pressure and then embedded in the tooth groove. The elastic plate provides a reset force to make the tooth block and the tooth groove tightly bite, thereby realizing the connection between the reinforcing rib and the fixed plate and preventing axial displacement of the outer sleeve. When disassembling, the two moving rods are pushed to move in opposite directions, and the elastic plate is driven to flatten again toward the inside of the fixed plate, so that the tooth block is separated from the tooth groove, and the clamping protrusion and the fixed plate can be separated. The mechanical bite of the tooth block and the tooth groove provides a high-strength connection, and the elastic plate ensures that it will not loosen under long-term vibration.

[0014] The present invention is further configured as follows: the reinforcing ribs are arranged in a T-shape as a whole and are axially distributed along the inner wall of the outer sheath; a positioning protrusion is provided on the front side of the interior of the fixing plate; and the inner wall of the clamping protrusion contacts the positioning protrusion.

[0015] By adopting the above technical solution, the bending resistance of the reinforcing ribs is improved through the T-shaped structure, the concave deformation of the outer sheath when subjected to force is reduced, the positioning protrusions ensure the installation accuracy of the snap-on components, avoid connection failure caused by misalignment of the tooth block and the tooth groove, and enhance structural stability.

[0016] The present invention is further configured as follows: a clearance groove is opened inside the fixed plate corresponding to one side of the elastic plate, and the movable rod and the elastic plate are both inside the clearance groove, the front end of the elastic plate is connected to the inner wall of the clearance groove, and the other end is a movable end.

[0017] By adopting the above technical solution, the yield groove provides deformation space for the elastic plate, ensuring smooth expansion and contraction of the tooth block and avoiding damage caused by rigid contact. The elastic reset force of the elastic plate ensures the continuous and tight engagement of the tooth block and the tooth groove, preventing loosening caused by vibration or impact and improving connection reliability.

[0018] The present invention is further configured as follows: the pressure sensing component includes a fixed column, the fixed column is bolted to a side close to the connecting plate, micro switches are provided at the top and bottom of both sides inside the fixed column, a resistance block is slidingly provided inside the fixed column, the resistance block is used in conjunction with the micro switch, one side of the resistance block is bolted to a guide rod, and the side of the guide rod away from the resistance block is connected to a pressure cap, the side of the pressure cap close to the guide rod is in contact with an elastic metal diaphragm, and the edge of the elastic metal diaphragm is connected to the inner wall of the fixed column, and one end of the guide rod slides through the interior of the elastic metal diaphragm.

[0019] By adopting the above technical solution, a pressure sensing component is set up, and the dry gas between the inner sheath and the outer sheath maintains a set positive pressure, the elastic metal diaphragm maintains its initial shape, the contact block maintains a safe distance from the microswitch, and the alarm circuit is disconnected; when the gas pressure drops (such as a leak occurs), due to the decrease in gas pressure, the elastic metal diaphragm overcomes the air pressure and pushes the pressure cap upward, and simultaneously causes the guide rod to drive the contact block to move, so that the contact block contacts the microswitch at the top, thereby triggering a signal and transmitting the signal to the outside world; when the pressure rises abnormally (such as the cable is squeezed); the pressure between the inner sheath and the outer sheath increases, the pressure cap transmits the pressure to the elastic metal diaphragm, and causes the guide rod to push the contact block downward, contacting the microswitch at the bottom, which can trigger an overpressure alarm, and the built-in warning structure can be transmitted to the outside world. The elastic metal diaphragm is sensitive to pressure changes, and the microswitch responds to the threshold, thereby realizing a mechanical trigger alarm for leakage or overpressure.

[0020] The present invention is further configured as follows: the inner wall of the pressure cap is provided with a plurality of guide grooves in an annular shape, and the guide grooves are arranged radially and extend from the center to the edge.

[0021] By adopting the above technical solution, the pressure is evenly applied to the diaphragm through the radial guide grooves, thereby improving the pressure sensing accuracy, avoiding diaphragm fatigue damage caused by local high pressure, extending the service life of the pressure sensing component, and ensuring the reliability of the alarm system.

[0022] The present invention is further configured as follows: the heat dissipation layer includes a graphene braided tape, the graphene braided tape is wrapped around the surface of the total insulation layer, and a plurality of heat dissipation fins are distributed axially on the surface of the graphene braided tape.

[0023] By adopting the above technical solution and setting a heat dissipation layer, the heat generated by the conductor structure is conducted to the graphene braided belt through the total insulation layer. The high thermal conductivity of graphene quickly transfers the heat in the axial direction. The heat dissipation fins increase the surface area, and the longitudinal heat dissipation channel promotes air convection and accelerates heat dissipation. The three-dimensional heat dissipation structure improves the heat dissipation efficiency, avoids the increase of resistance and insulation aging caused by long-term high temperature of the conductor, extends the service life of the cable, and reduces the environmental heat load.

[0024] The present invention is further configured as follows: a plurality of recessed portions are provided in an annular shape on the surface of the total insulating layer, and a longitudinal heat dissipation channel is formed between the recessed portions and the graphene braided belt.

[0025] By adopting the above technical solution and setting a recessed portion, when the cable body is running, heat can be quickly conducted away along the longitudinal heat dissipation channel, effectively reducing the temperature of the cable body and improving the service life of the total insulation layer. At the same time, the recessed portion can also increase the flexibility of the total insulation layer, making the bending performance of the cable body better.

[0026] In summary, the present invention has the following beneficial effects: 1. The cable body is composed of a shielding layer, a heat dissipation layer, a main insulation layer, a sub-insulation layer, and a conductor structure. The copper alloy conductor adopts a multi-strand twisted structure. The sub-insulation layer isolates the single-core conductor. The main insulation layer is wrapped to form an overall insulation, reducing eddy current loss and phase interference. The heat dissipation layer is tightly wrapped around the main insulation layer. Its two-dimensional heat conduction network quickly conducts heat from the conductor. Combined with the axial heat dissipation fins and longitudinal heat dissipation channels, a three-dimensional heat dissipation system is formed to avoid insulation aging caused by local overheating. The shielding layer is made of highly conductive metal material to effectively block external electromagnetic interference. At the same time, it serves as the mechanical support basis of the pressure-bearing structure to improve the overall rigidity of the cable. 2. By setting up a pressure-bearing structure, dry gas (such as nitrogen) is filled between the inner sheath and the outer sheath to form a slight positive pressure. The air pressure difference is used to prevent external moisture and humidity from invading the cable through the gaps, eliminating the risk of insulation moisture from the source; when the cable is squeezed or bent, the force on the outer sheath is transmitted to the connecting plate through the clamping component, driving the deformation adaptation component to move in coordination, absorbing the impact energy through the spring deformation and the connecting rod mechanism, and avoiding the rigid stress from being transmitted to the cable body. The pressure sensing component senses the gas pressure changes between the inner sheath and the outer sheath, and monitors the air pressure in real time, which can trigger an alarm for pressure abnormalities (leakage or overpressure). It can work without power supply and is suitable for power-free or explosion-proof scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the pressure-bearing structure of the present invention; Figure 3This is a schematic diagram of the connection between the deformation adaptation component, the clamping component and the connecting plate of the present invention; Figure 4 It is a schematic structural diagram of the clamping assembly of the present invention; Figure 5 is a schematic structural diagram of the pressure sensing component of the present invention; Figure 6 It is a schematic diagram of the cable main structure of the present invention; Figure 7 It is a schematic diagram of the connection between the total insulation layer and the heat dissipation layer of the present invention.

[0028] Figure 1: Cable body; 11: Shielding layer; 12: Heat dissipation layer; 121: Graphene braid; 122: Heat dissipation fin; 13: General insulation layer; 14: Sub-insulation layer; 15: Conductor structure; 2: Pressure-bearing structure; 21: Inner sheath; 22: Outer sheath; 23: Connecting hoop; 24: Connecting plate; 25: Snap-fit ​​assembly; 251: Reinforcement rib; 252: Snap-fit ​​protrusion; 253: Fixing plate; 254: Tooth block; 255: Tooth groove; 256: Elastic plate; 257: Moving rod; 258, contact plate; 26, deformation adaptation component; 261, slider; 262, damping rod; 263, first spring; 264, telescopic rod; 265, connecting sleeve; 266, connecting rod; 267, second spring; 27, pressure sensing component; 271, fixing column; 272, micro switch; 273, contact block; 274, guide rod; 275, pressure cap; 276, elastic metal diaphragm; 3, limiting protrusion; 4, give way groove; 5, guide groove; 6, recessed portion. DETAILED DESCRIPTION

[0029] The present invention will be further described in detail below with reference to the accompanying drawings.

[0030] Example 1: refer to Figure 1 、 67. An energy-saving copper alloy conductor power cable, comprising a cable body 1, wherein the cable body 1 comprises a shielding layer 11, a heat dissipation layer 12 is provided inside the shielding layer 11, a main insulating layer 13 is provided inside the heat dissipation layer 12, a plurality of sub-insulating layers 14 are provided inside the main insulating layer 13, and a conductor structure 15 is provided inside the sub-insulating layer 14, a pressure-bearing structure 2 is provided on the surface of the shielding layer 11, and the cable body 1 is composed of the shielding layer 11, the heat dissipation layer 12, the main insulating layer 13, the sub-insulating layer 14 and the conductor structure 15. The copper alloy conductor adopts a multi-strand twisted structure, with separate insulation layers 14 isolating single-core conductors, and the total insulation layer 13 wraps to form overall insulation, reducing eddy current loss and phase interference. The heat dissipation layer 12 is tightly wrapped around the total insulation layer 13. Its two-dimensional heat conduction network quickly conducts heat from the conductor, and cooperates with the axial heat dissipation fins 122 and the longitudinal heat dissipation channels to form a three-dimensional heat dissipation system to avoid insulation aging caused by local overheating. The shielding layer 11 is made of highly conductive metal material to effectively block external electromagnetic interference. At the same time, it serves as the mechanical support basis of the pressure-bearing structure 2, improving the overall rigidity of the cable.

[0031] like Figure 7 As shown, the heat dissipation layer 12 includes a graphene braid 121, which is wrapped around the surface of the total insulation layer 13, and a plurality of heat dissipation fins 122 are distributed axially on the surface of the graphene braid 121. By setting the heat dissipation layer 12, the heat generated by the conductor structure 15 is conducted to the graphene braid 121 through the total insulation layer 13. The high thermal conductivity of graphene quickly transfers the heat along the axial direction. The heat dissipation fins 122 increase the surface area, and the longitudinal heat dissipation channel promotes air convection, accelerates heat dissipation, and the three-dimensional heat dissipation structure improves the heat dissipation efficiency, avoids the increase in resistance and insulation aging caused by long-term high temperature of the conductor, extends the service life of the cable, and reduces the environmental heat load.

[0032] like Figure 7 As shown, the surface of the total insulation layer 13 is provided with a plurality of recessed portions 6 in a ring shape, and a longitudinal heat dissipation channel is formed between the recessed portion 6 and the graphene braided belt 121. By providing the recessed portion 6, when the cable body 1 is running, the heat can be quickly conducted out along the longitudinal heat dissipation channel, effectively reducing the temperature of the cable body 1 and improving the service life of the total insulation layer 13. At the same time, the recessed portion 6 can also increase the flexibility of the total insulation layer 13, so that the bending performance of the cable body 1 is better.

[0033] A brief description of the usage process: the cable is connected to the power system, and the current begins to be transmitted through the conductor structure 15. The conductor structure 15 is made of copper alloy material. With its excellent conductive properties, it effectively reduces the resistance loss during the power transmission process. The sub-insulation layer 14 tightly wraps each conductor to achieve electrical isolation and prevent phase short circuit; the main insulation layer 13 covers all the sub-insulation layers 14 as a whole, further enhancing the insulation performance and ensuring that the current is transmitted in a safe electrical environment; the conductor structure 15 generates heat when transmitting electric energy. The heat is first conducted to the main insulation layer 13, and a longitudinal heat dissipation channel is formed between the recessed portion 6 on the surface of the main insulation layer 13 and the graphene braided tape 121 wrapped thereon. The heat is conducted to the graphene braided tape 121 through the main insulation layer 13. 1. Utilizing the high thermal conductivity of graphene, heat is quickly transferred axially. At the same time, the heat dissipation fins 122 distributed axially on the surface of the graphene braided tape 121 increase the heat dissipation area. When the cable is running, air can flow in the longitudinal heat dissipation channel, promoting air convection and accelerating the dissipation of heat to the surrounding environment, thereby reducing the internal temperature of the cable and avoiding the increase of conductor resistance and aging of the insulation layer due to high temperature; the shielding layer 11 is wrapped around the outside of the heat dissipation layer 12. It is made of highly conductive metal material and can effectively block external electromagnetic interference, prevent the external electromagnetic field from affecting the current transmission inside the cable, and ensure the stability of power transmission; at the same time, the shielding layer 11 also provides a mechanical support basis for the pressure-bearing structure 2, enhancing the overall rigidity and pressure resistance of the cable.

[0034] Example 2: refer to Figure 2-5 , including a pressure-bearing structure 2, the pressure-bearing structure 2 includes an inner sheath 21 and an outer sheath 22, the inner sheath 21 is arranged on the surface of the shielding layer 11, and the inner sheath 21 and the outer sheath 22 are filled with dry gas to form a positive pressure environment, the top and bottom of the surface of the inner sheath 21 are sleeved with a plurality of connecting hoops 23, a connecting plate 24 is arranged between the plurality of connecting hoops 23, a clamping component 25 is arranged on one side of the connecting plate 24, and the clamping component 25 is connected to the outer sheath 22, a deformation adaptation component 26 is arranged between the clamping component 25 and the connecting plate 24, and a plurality of pressure sensing components 27 are bolted to the side of the connecting plate 24 close to the clamping component 25. By setting the pressure-bearing structure 2, the inner sheath Dry gas (such as nitrogen) is filled between the inner sheath 21 and the outer sheath 22 to form a slight positive pressure, and the air pressure difference is used to prevent external moisture and humidity from invading the interior of the cable through the gap, thereby eliminating the risk of insulation moisture from the source; when the cable is squeezed or bent, the force on the outer sheath 22 is transmitted to the connecting plate 24 through the clamping component 25, driving the deformation adaptation component 26 to move in coordination, and absorbing the impact energy through the spring deformation and the connecting rod mechanism to avoid the rigid stress from being transmitted to the cable body 1. The pressure sensing component 27 senses the gas pressure change between the inner sheath 21 and the outer sheath 22, and monitors the air pressure in real time, which can trigger an alarm for pressure anomalies (leakage or overpressure). It can work without power supply and is suitable for power-free or explosion-proof scenarios.

[0035] like Figure 3 As shown, the deformation adaptation component 26 includes two sliders 261, which are slidably connected to the inside of the connecting plate 24. The opposite sides of the two sliders 261 are bolted with damping rods 262, and the side of the damping rod 262 close to the inner wall of the connecting plate 24 is connected to it. The surface of the damping rod 262 is sleeved with a first spring 263, and the side of the first spring 263 close to the slider 261 and the inner wall of the connecting plate 24 are respectively connected to the two. The bottom of the clamping component 25 is clamped with a telescopic rod 264, and the bottom of the telescopic rod 264 is connected to the inner wall of the connecting plate 24. The bottom of the surface of the telescopic rod 264 is sleeved with a connecting sleeve 265, and the front and rear sides of the connecting sleeve 265 are rotatably connected to the connecting rod 266, and the other end of the connecting rod 266 is rotatable with the slider 261 The second spring 267 is sleeved on the surface of the telescopic rod 264, and the top and bottom of the second spring 267 are respectively connected to the connecting sleeve 265 and the inner wall of the connecting plate 24. By setting the deformation adaptation component 26, when the outer sheath 22 is under pressure, the clamping component 25 pushes the telescopic rod 264, so that the telescopic rod 264 is compressed and shortened, and synchronously drives the connecting sleeve 265 to move downward. At the same time, the slider 261 is pulled by the connecting rod 266 to slide toward each other in the sliding groove, compressing the first spring 263 and the second spring 267. The spring deformation absorbs energy, and the damping rod 262 provides motion damping to slow down the impact speed. The deformation adaptation component 26 adopts a double spring plus connecting rod mechanism to achieve two-way buffering. The damping rod 262 suppresses the vibration amplitude to avoid the sheath rupture caused by instantaneous impact.

[0036] like Figure 3 As shown, a sliding groove is provided inside the connecting plate 24, and the slider 261 is located inside the sliding groove. Limiting protrusions 3 are provided on both sides of the slider 261, and the surface of the limiting protrusion 3 is in sliding contact with the inner wall of the connecting plate 24. The movement accuracy of the slider 261 is ensured by the cooperation between the limiting protrusion 3 and the sliding groove, and jamming or structural failure caused by lateral offset is prevented, thereby improving the durability of the deformation adaptation component 26.

[0037] like Figure 4As shown, the clamping assembly 25 includes a reinforcing rib 251, the top of the reinforcing rib 251 is connected to the outer sheath 22 and is integrally arranged with the outer sheath 22, the bottom of the reinforcing rib 251 is provided with a clamping protrusion 252, the surface of the clamping protrusion 252 is sleeved with a fixing plate 253, and a plurality of tooth blocks 254 are provided on both sides of the fixing plate 253. A tooth groove 255 for use with the tooth block 254 is opened on one side of the clamping protrusion 252 corresponding to the tooth block 254, and the tooth block 254 is provided with a tooth groove 255 for use with the tooth block 254. Inside the tooth groove 255, an elastic plate 256 is provided on one side of the tooth block 254 close to the inner wall of the fixed plate 253, and a moving rod 257 is provided between the plurality of elastic plates 256. A contact plate 258 is provided on both sides of the inner side of the clamping protrusion 252, and the front end of the contact plate 258 is fixedly connected to the clamping protrusion 252, and the other end is a free end. By providing the clamping assembly 25, when the outer sheath 22 is installed, the clamping protrusion 252 of the reinforcing rib 251 can be aligned with the fixed plate 2 53 and moves in the preset slot inside it. During the movement, the contact plate 258 first presses the tooth block 254, and uses the elasticity of the elastic plate 256 to deform the tooth block 254 toward the inside of the fixed plate 253, so that the subsequent tooth groove 255 can move to the position of the tooth block 254. After the contact plate 258 is separated from the tooth block 254, the tooth block 254 is elastically deformed under pressure and then embedded in the tooth groove 255. The elastic plate 256 provides a reset force to make the tooth block 254 and the tooth groove 255 tightly connected. The engagement realizes the connection between the reinforcing rib 251 and the fixed plate 253 and prevents the axial displacement of the outer sheath 22. When disassembling, the two moving rods 257 are pushed to move in opposite directions, and the elastic plate 256 is driven to flatten toward the inside of the fixed plate 253 again, so that the tooth block 254 is disengaged from the tooth groove 255, and the clamping protrusion 252 and the fixed plate 253 can be separated. The mechanical engagement of the tooth block 254 and the tooth groove 255 provides a high-strength connection, and the elastic plate 256 ensures that it will not loosen under long-term vibration.

[0038] like Figure 4 As shown, the reinforcing rib 251 is T-shaped as a whole and is distributed axially along the inner wall of the outer sheath 22. A positioning protrusion is provided on the front side of the fixing plate 253. The inner wall of the clamping protrusion 252 contacts the positioning protrusion. The T-shaped structure improves the bending resistance of the reinforcing rib 251 and reduces the concave deformation of the outer sheath 22 when subjected to force. The positioning protrusion ensures the installation accuracy of the clamping assembly 25, avoids connection failure caused by misalignment of the tooth block 254 and the tooth groove 255, and enhances structural stability.

[0039] like Figure 4As shown, a clearance groove 4 is opened inside the fixed plate 253 on the side corresponding to the elastic plate 256, and the movable rod 257 and the elastic plate 256 are both inside the clearance groove 4. The front end of the elastic plate 256 is connected to the inner wall of the clearance groove 4, and the other end is a movable end. The clearance groove 4 provides deformation space for the elastic plate 256 to ensure smooth extension and contraction of the tooth block 254 and avoid damage caused by rigid contact. The elastic reset force of the elastic plate 256 ensures that the tooth block 254 and the tooth groove 255 are continuously and tightly engaged, preventing loosening caused by vibration or impact and improving connection reliability.

[0040] like Figure 5 As shown, the pressure sensing component 27 includes a fixed column 271, which is bolted to one side close to the connecting plate 24, and micro switches 272 are provided on the top and bottom of both sides of the interior of the fixed column 271. A resistance block 273 is provided for sliding inside the fixed column 271, and the resistance block 273 is used in conjunction with the micro switch 272. A guide rod 274 is bolted to one side of the resistance block 273, and a pressure cap 275 is connected to the side of the guide rod 274 away from the resistance block 273. The side of the pressure cap 275 close to the guide rod 274 contacts an elastic metal diaphragm 276, and the edge of the elastic metal diaphragm 276 is connected to the inner wall of the fixed column 271, and one end of the guide rod 274 slides through the interior of the elastic metal diaphragm 276. By setting the pressure sensing component 27, the dry gas between the inner sheath 21 and the outer sheath 22 maintains the set positive pressure, the elastic metal diaphragm 276 maintains its initial shape, and the resistance block 27 3 maintains a safe distance from the micro switch 272, and the alarm circuit is disconnected; when the gas pressure drops (such as a leak), due to the decrease in gas pressure, the elastic metal diaphragm 276 overcomes the gas pressure and pushes the pressure cap 275 upward, and simultaneously causes the guide rod 274 to drive the resistance block 273 to move, so that the resistance block 273 resists the micro switch 272 at the top, thereby triggering a signal and transmitting the signal to the outside world; when the pressure rises abnormally (such as the cable is squeezed); the pressure between the inner sheath 21 and the outer sheath 22 increases, the pressure cap 275 transmits the pressure to the elastic metal diaphragm 276, and causes the guide rod 274 to push the resistance block 273 downward, contacting the micro switch 272 at the bottom, which can trigger the overpressure alarm, that is, the built-in warning structure can be transmitted to the outside world, through the elastic metal diaphragm 276 being sensitive to pressure changes, the micro switch 272 responds to the threshold, and a mechanical trigger alarm of leakage or overpressure is achieved.

[0041] like Figure 5 As shown, the inner wall of the pressure cap 275 is provided with a plurality of guide grooves 5 in a ring shape, and the guide grooves 5 are radially arranged and extend from the center to the edge. The radial guide grooves 5 make the pressure act evenly on the diaphragm, thereby improving the pressure sensing accuracy, avoiding the fatigue damage of the diaphragm caused by local high pressure, extending the service life of the pressure sensing component 27, and ensuring the reliability of the alarm system.

[0042] The use process is briefly described as follows: the connecting hoop 23 is put between the inner sheath 21 and is tightly connected to the inner sheath 21 using a bolt structure. Then, the clamping protrusion 252 of the reinforcing rib 251 is aligned with the fixing plate 253 and moved in the preset groove therein. During the movement, the contact plate 258 first presses the tooth block 254, and the elastic plate 256 is used to deform the tooth block 254 toward the inside of the fixing plate 253, so that the subsequent tooth groove 255 can move to the position of the tooth block 254. After the contact plate 258 is separated from the tooth block 254, the tooth block 254 is elastically deformed under pressure and embedded in the tooth groove 25 5. The elastic plate 256 provides a reset force to make the tooth block 254 and the tooth groove 255 tightly bite, thereby realizing the connection between the reinforcing rib 251 and the fixing plate 253. After the installation is completed, the space between the inner sheath 21 and the outer sheath 22 is filled with dry gas (such as nitrogen) through a special inflation device to form a slightly positive pressure environment. During the operation of the cable, if there is moisture and humidity in the external environment, due to the pressure difference between the inner sheath 21 and the outer sheath 22, it is difficult for external moisture and humidity to penetrate into the cable through the gap, thereby eliminating the risk of insulation moisture from the source and protecting the insulation layer and conductor structure 15 inside the cable. When the cable is squeezed or bent externally, the outer sheath 22 is first subjected to force, and the pressure is transmitted to the fixing plate 253 through the reinforcing rib 251 integrally provided with the outer sheath 22. Under the action of pressure, the engaging protrusion 252 at the bottom of the reinforcing rib 251 pushes the telescopic rod 264 downward, and the telescopic rod 264 is compressed and shortened, and at the same time drives the connecting sleeve 265 on its surface to move downward. During the downward movement of the connecting sleeve 265, the connecting rod 266 connected by internal rotation pulls the two sliders 261 in the connecting plate 24 to slide toward each other in the sliding groove. When the slider 261 slides, the first spring 26 on the surface of the damping rod 262 is compressed. 3 and the second spring 267 on the surface of the telescopic rod 264. The deformation of the first spring 263 and the second spring 267 absorbs the impact energy, while the damping rod 262 provides motion damping, slowing down the sliding speed of the slider 261, thereby slowing down the transmission speed and force of the pressure of the outer sheath 22 to the cable body 1, avoiding the rigid stress from directly acting on the cable body 1, and protecting the internal structure of the cable from damage. When the external force disappears, under the elastic restoring force of the first spring 263 and the second spring 267, the slider 261, the connecting sleeve 265 and the telescopic rod 264 are restored, and the outer sheath 22 also returns to its initial state;Under normal conditions, the dry gas between the inner sheath 21 and the outer sheath 22 maintains a set positive pressure, the elastic metal diaphragm 276 maintains its initial shape, the resistance block 273 maintains a safe distance from the micro switches 272 at the top and bottom of the fixed column 271 on both sides, and the alarm circuit is in an off state. When the gas pressure drops (such as when the outer sheath 22 is damaged and causes gas leakage), the internal and external pressure difference decreases, the elastic metal diaphragm 276 overcomes the internal gas pressure and deforms upward, pushing the pressure cap 275 upward, and the pressure cap 275 drives the resistance block 273 to move upward synchronously through the guide rod 274. When the resistance block 273 moves to the position aligned with the pressure cap 275, the resistance block 273 moves upward synchronously. When the top microswitch 272 contacts, it closes, triggering an alarm signal that is transmitted to an external alarm device, alerting the user to a possible cable leak. In scenarios where pressure rises abnormally (e.g., when the cable is strongly squeezed), the pressure between the inner and outer sheaths 21 and 22 increases. The pressure cap 275 transmits this pressure to the elastic metal diaphragm 276, causing it to deform downward. This pressure pushes the contact block 273 downward via the guide rod 274. When the contact block 273 contacts the bottom microswitch 272, an overpressure alarm is triggered. A built-in warning structure transmits the alarm signal to the outside world, alerting personnel to take timely action.

[0043] This specific embodiment is merely an explanation of the present invention and is not intended to limit the present invention. After reading this specification, those skilled in the art may make non-creative modifications to this embodiment as needed. However, as long as such modifications are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. An energy-saving copper alloy conductor power cable, comprising a cable body (1), characterized in that: The cable body (1) comprises a shielding layer (11), a heat dissipation layer (12) is provided inside the shielding layer (11), a general insulation layer (13) is provided inside the heat dissipation layer (12), a plurality of sub-insulation layers (14) are provided inside the general insulation layer (13), and a conductor structure (15) is provided inside the sub-insulation layer (14), and a pressure-bearing structure (2) is provided on the surface of the shielding layer (11); The pressure-bearing structure (2) comprises an inner sheath (21) and an outer sheath (22), wherein the inner sheath (21) is arranged on the surface of the shielding layer (11), and a dry gas is filled between the inner sheath (21) and the outer sheath (22), thereby forming a positive pressure environment. The top and bottom of the surface of the inner sheath (21) are sleeved with a plurality of connecting hoops (23), a connecting plate (24) is arranged between the plurality of connecting hoops (23), a snap-fit ​​assembly (25) is arranged on one side of the connecting plate (24), and the snap-fit ​​assembly (25) is connected to the outer sheath (22), a deformation adaptation assembly (26) is arranged between the snap-fit ​​assembly (25) and the connecting plate (24), and a plurality of pressure sensing assemblies (27) are bolted to a side of the connecting plate (24) close to the snap-fit ​​assembly (25).

2. The energy-saving copper alloy conductor power cable according to claim 1, characterized in that: The deformation adaptation component (26) includes two sliders (261), the sliders (261) are slidably connected to the inside of the connecting plate (24), and the two sliders (261) are bolted with damping rods (262) on opposite sides, and the damping rods (262) are connected to the inner wall of the connecting plate (24) on the side close to the damping rods (262), and the surface of the damping rods (262) is sleeved with a first spring (263), and the first spring (263) is connected to the sliders (261) and the inner wall of the connecting plate (24) on the side close to the two, respectively. The bottom of the clamping component (25) is clamped. A telescopic rod (264) is provided, and the bottom of the telescopic rod (264) is connected to the inner wall of the connecting plate (24). The bottom of the surface of the telescopic rod (264) is sleeved with a connecting sleeve (265), and the front and rear sides of the interior of the connecting sleeve (265) are both rotatably connected to a connecting rod (266). The other end of the connecting rod (266) is rotatably connected to a slider (261). A second spring (267) is sleeved on the surface of the telescopic rod (264), and the top and bottom of the second spring (267) are respectively connected to the connecting sleeve (265) and the inner wall of the connecting plate (24).

3. The energy-saving copper alloy conductor power cable according to claim 2, characterized in that: A sliding groove is provided inside the connecting plate (24), the sliding block (261) is located inside the sliding groove, and limiting protrusions (3) are provided on both sides of the sliding block (261), and the surfaces of the limiting protrusions (3) are in sliding contact with the inner wall of the connecting plate (24).

4. The energy-saving copper alloy conductor power cable according to claim 2, characterized in that: The clamping assembly (25) includes a reinforcing rib (251), the top of the reinforcing rib (251) is connected to the outer sheath (22) and is integrally provided with the outer sheath (22), the bottom of the reinforcing rib (251) is provided with a clamping protrusion (252), the surface of the clamping protrusion (252) is sleeved with a fixing plate (253), a plurality of tooth blocks (254) are provided on both sides of the interior of the fixing plate (253), and a tooth block (254) is provided on one side of the clamping protrusion (252) corresponding to the tooth block (254). A tooth groove (255) is used in conjunction with the tooth block (254), wherein the tooth block (254) is located inside the tooth groove (255), an elastic plate (256) is provided on one side of the tooth block (254) close to the inner wall of the fixed plate (253), and a moving rod (257) is provided between a plurality of elastic plates (256), and a contact plate (258) is provided on both sides inside the clamping protrusion (252), and the front end of the contact plate (258) is fixedly connected to the clamping protrusion (252), and the other end is a free end.

5. The energy-saving copper alloy conductor power cable according to claim 4, characterized in that: The reinforcing ribs (251) are arranged in a T-shape as a whole and are axially distributed along the inner wall of the outer sheath (22). A positioning protrusion is provided on the front side of the interior of the fixing plate (253), and the inner wall of the clamping protrusion (252) contacts the positioning protrusion.

6. The energy-saving copper alloy conductor power cable according to claim 4, characterized in that: A clearance groove (4) is provided inside the fixed plate (253) on one side corresponding to the elastic plate (256), and the movable rod (257) and the elastic plate (256) are both located inside the clearance groove (4). The front end of the elastic plate (256) is connected to the inner wall of the clearance groove (4), and the other end is a movable end.

7. The energy-saving copper alloy conductor power cable according to claim 1, characterized in that: The pressure sensing component (27) includes a fixed column (271), which is bolted to a side close to the connecting plate (24), and micro switches (272) are provided at the top and bottom of both sides inside the fixed column (271). A resistance block (273) is provided inside the fixed column (271) for sliding, and the resistance block (273) is used in conjunction with the micro switch (272). A guide rod (274) is bolted to one side of the resistance block (273), and a pressure cap (275) is connected to the side of the guide rod (274) away from the resistance block (273). The side of the pressure cap (275) close to the guide rod (274) contacts an elastic metal diaphragm (276), and the edge of the elastic metal diaphragm (276) is connected to the inner wall of the fixed column (271), and one end of the guide rod (274) slides through the inside of the elastic metal diaphragm (276).

8. The energy-saving copper alloy conductor power cable according to claim 7, characterized in that: The inner wall of the pressure cap (275) is provided with a plurality of guide grooves (5) in an annular shape, and the guide grooves (5) are arranged radially and extend from the center to the edge.

9. The energy-saving copper alloy conductor power cable according to claim 1, characterized in that: The heat dissipation layer (12) comprises a graphene braided tape (121), the graphene braided tape (121) is wrapped around the surface of the total insulation layer (13), and a plurality of heat dissipation fins (122) are distributed axially on the surface of the graphene braided tape (121).

10. The energy-saving copper alloy conductor power cable according to claim 9, characterized in that: The surface of the total insulating layer (13) is provided with a plurality of recessed portions (6) in an annular shape, and a longitudinal heat dissipation channel is formed between the recessed portions (6) and the graphene braided belt (121).

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