Energy storage aluminum alloy low voltage cable

Abstract

This invention discloses an energy storage aluminum alloy low-voltage cable, relating to the field of cable technology. The sheath contains several evenly spaced pads, and a core tube is inserted into the center of the side end face of each pad. Inside the core tube, several variable-diameter tubes are evenly spaced. A pilot valve is embedded in the top of the outer curved surface of each variable-diameter tube. Several slots are formed at equal angles along the circumference of the outer curved surface of the core tube at the positions of the variable-diameter tubes. This invention achieves dual-channel heat exchange based on natural heat dissipation, effectively combining passive and active heat exchange, balancing energy consumption and heat exchange efficiency. It effectively removes heat from the junction of the cable cores, achieving more timely and efficient internal and external heat exchange, providing more comprehensive heat dissipation for the cable. It also enables internal heat circulation exchange, balancing heat throughout the cable, allowing for more stable and efficient transmission. Furthermore, it can recover and convert waste electromagnetic energy, promoting more efficient and smooth heat exchange.

Description

Technical Field

[0001] This invention relates to the field of cable technology, specifically to an energy storage aluminum alloy low-voltage cable. Background Technology

[0002] The application scenarios of energy storage cables are deeply intertwined with energy storage systems. As the "blood vessels" of energy storage systems, the technological evolution and market expansion of energy storage cables will deeply support the global energy transition and become a key link connecting new energy power generation, grid dispatch and end users. The optimization of energy storage cables should be based on "material innovation as the core, standardization as the foundation, intelligence as the means, and cost reduction at scale as the goal", so as to ultimately achieve a "high-performance, low-cost, and high-reliability" cable system that is compatible with the rapid development of the energy storage industry.

[0003] However, in current energy storage cables, as the load changes, the heat emitted by the cable core tends to accumulate at the center of the cable. The junction of the cable cores is prone to premature aging due to insufficient heat dissipation. Moreover, the heat dissipation is mostly achieved through natural heat dissipation, which not only has poor heat dissipation efficiency but also makes the cable prone to temperature imbalance due to load fluctuations, which can easily lead to damage due to local overheating. Summary of the Invention

[0004] This invention provides an energy storage aluminum alloy low-voltage cable, which can effectively solve the problems mentioned in the background art. In the process of use, as the load changes, the heat emitted by the cable core tends to accumulate at the center of the cable. The junction of the cable cores is prone to premature aging due to insufficient heat dissipation. Moreover, heat dissipation is mostly carried out by natural heat dissipation, which not only has poor heat dissipation efficiency, but also makes the cable prone to temperature imbalance due to load fluctuations, and easily damaged by local overheating.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an energy storage aluminum alloy low-voltage cable, including a sheath, wherein a double-pass protection mechanism is installed inside the sheath;

[0006] The dual-passage protection mechanism includes a base;

[0007] The sheath has several pads evenly spaced inside, and a core tube is inserted through the middle of the side end face of each pad. Several reducing tubes are evenly spaced inside the core tube. A guide valve is embedded in the top of the outer curved surface of each reducing tube. Several slots are opened at equal angles along the circumference at the position of the reducing tube on the outer curved surface of the core tube. Guide valves are installed at both ends of the core tube. A head box and a tail box are respectively installed at the ends of the two guide valves. A mixing valve is installed at the bottom of the outer curved surface of the head box, and an outlet pipe is installed at the bottom of the outer curved surface of the tail box.

[0008] A ring box is symmetrically installed on the outer curved surface of the sheath. A filter screen is embedded in the outer curved surface of the ring box. Several cable cores are inserted at equal angles along the circumferential direction on the side end face of the pad. An inner sheath is sleeved on the outside of the cable cores. An air bladder is installed on the outer wall of the inner sheath. A heat-conducting pad is sleeved on the outside of the air bladder. Several through pipes are evenly connected at equal intervals on the outer wall of the air bladder. A clamp sleeve is clamped on the outer wall of the heat-conducting pad.

[0009] Preferably, an insulating sleeve is fitted onto the outer wall of the cable core, and a shielding mesh is embedded in the outer wall of the insulating sleeve at the position inside the inner sheath.

[0010] The inner sheath has several ring pads evenly installed at equal intervals on its outer wall. The inner wall of the airbag has a ring sleeve at the position corresponding to the ring pad. The inner wall of the heat-conducting pad has several ribs installed at equal angles along the circumference. The outer wall of the airbag has a toothed groove at the position corresponding to the rib. The top of the outer wall of the heat-conducting pad has a protruding beam. The outer wall of the sheath has a dustproof net embedded at the position corresponding to the valve.

[0011] Preferably, the reducing pipe is distributed adjacent to the pad, and the space between two adjacent pads is connected to the reducing pipe through a slot and a pilot valve. The cross-section of the reducing pipe is hourglass-shaped.

[0012] Preferably, the inner sheath and the thermal pad fit together with the airbag, the airbag is filled with helium, and the airbag is connected to the inner cavity of the pad through a tube.

[0013] Preferably, the thermal pad is integrally formed with the ribs and the protruding beam, the ribs are fitted with the toothed grooves, and the ring pad is fitted with the ring sleeve.

[0014] Preferably, an energy storage reinforcement mechanism is installed at the end of the sheath;

[0015] The energy storage enhancement mechanism includes a mother cover;

[0016] A female cover is installed at one end of the sheath, located on one side of the head box. A female cover is installed at the other end of the sheath. A threaded ring is rotatably installed at the end of the female cover. Mounting seats are installed on the inner walls of both the female cover and the female cover. A shaft is embedded in the middle of the side end face of the mounting seat inside the female cover. A motor is installed at one end of the shaft, and a guide box is installed at the other end of the shaft.

[0017] The motor output shaft is connected to a reciprocating lead screw. A piston is threadedly installed on the outside of the reciprocating lead screw at a position inside the shaft cylinder. A tube is installed at the end of the guide box. Several through-holes are opened at equal angles along the circumferential direction on the outer curved surface of the tube. Air supply valves are symmetrically installed on one side of the outer curved surface of the shaft cylinder at positions on both sides of the piston. Connecting pipes are connected to the ends of the air supply valves. Air intake valves are symmetrically installed on the other side of the outer curved surface of the shaft cylinder at positions on both sides of the piston. Opening pipes are connected to the ends of the air intake valves. Several through-hole valves are installed at equal angles along the circumferential direction on the inner wall of one of the ring boxes.

[0018] A mutual inductance coil is sleeved on the outer wall of the inner sheath at the gap of the ring pad. Several batteries are embedded at equal angles along the circumferential direction on the side end face of the mounting base. A rectifier is installed on the side end face of the mounting base inside the batteries. A temperature sensor is installed on the bottom of the outer curved surface of the shaft cylinder. A retaining ring is sleeved on the side end face of the pad. Several ribs are installed at equal angles along the circumferential direction on the side end face of the retaining ring. Several permanent magnet sheets are evenly installed on the outer wall of the clamp sleeve at equal intervals.

[0019] Preferably, the annular box is filled with activated carbon, and the annular box with the valve is located on one side of the head box. The opening pipe, the valve and the mixing valve are connected to the space on the same side of the mounting base, and the tail box is connected to another annular box through the outlet pipe.

[0020] Preferably, the space inside the shaft cylinder located on both sides of the piston is connected to the guide box through an air supply valve and a connecting pipe. The guide box is connected to the guide valve through an insertion pipe, and the insertion pipe is connected to the inner cavity of the head box through a port.

[0021] Preferably, the cylinder is slidably connected to the piston and the cylinder is fitted to the piston, the reciprocating screw is rotatably connected to the cylinder, and the air supply valve, air intake valve, air mixing valve, guide valve and pilot valve are all one-way flow valves.

[0022] Compared with the prior art, the advantages of the present invention are: the present invention has a scientific and reasonable structure and is safe and convenient to use;

[0023] 1. Equipped with a dual-channel protection mechanism, the cable, through the cooperation of pad, core tube, head box, tail box, mixing valve, outlet pipe, ring box and filter screen, can construct internal and external dual-channel heat exchange pathways to achieve dual heat exchange. In addition, the flow-limiting and guiding effects of dust screen, reducing pipe, guide valve, slot and guide valve can effectively combine spontaneous heat dissipation and active heat exchange, simultaneously taking into account heat exchange efficiency and energy consumption. On the one hand, it can combine the Venturi effect to achieve active heat exchange on the basis of spontaneous heat dissipation, greatly improve heat exchange efficiency, ensure the timeliness and effectiveness of heat exchange work, fully guarantee the stability and efficiency of cable operation, avoid the cable aging too quickly due to untimely heat dissipation, and effectively extend the effective service life of the cable. On the other hand, it can achieve internal and external dual-effect heat exchange, which can promote heat exchange more comprehensively, greatly reduce heat exchange blind spots, and effectively solve the pain point of heat accumulation in the center of the cable core that is not easy to dissipate.

[0024] By combining sheaths, air bladders, thermal pads, and conduits, a flexible protective structure can be constructed, providing more comprehensive and efficient protection for the cable core. The limiting effect of clamps, ring pads, ring sleeves, toothed grooves, ribs, and protruding beams effectively expands the heat exchange area, promoting more efficient heat exchange and transfer from the cable core. Furthermore, the flow and conduction of helium effectively balances the temperature between and around each cable core, reducing localized overheating and aging deviations caused by uneven heating between different cores. This allows the cable to operate more efficiently and for longer periods, effectively ensuring the balance of cable transmission operations.

[0025] 2. Equipped with an energy storage enhancement mechanism, which, through the cooperation of mutual inductance coils, batteries, and rectifiers, forms an electromagnetic conversion structure, it can convert and utilize the electromagnetic energy generated during the transmission of electrical energy through the cable. In addition, the dynamic linkage of the shaft, motor, guide box, reciprocating screw, and piston, the detection function of the temperature sensor, and the flow-limiting and guiding function of the air supply valve, connecting pipe, intake valve, and open pipe can provide sufficient driving force for the heat exchange airflow without consuming additional energy. On the one hand, it can realize the rational conversion and recycling of waste electromagnetic energy, effectively reducing the energy consumption of heat exchange work. While improving heat exchange efficiency, it also indirectly improves the transmission efficiency of the cable, enabling the cable to transmit power more efficiently and stably.

[0026] On the other hand, it can be used in conjunction with tubes, ports, and valves to guide airflow, effectively increasing the unit air exchange volume and achieving more efficient heat exchange. Through the cooperation of retaining rings, reinforcing bars, and permanent magnets, it provides stable support for the cable, making full use of magnetic repulsion and the elasticity of reinforcing bars to prevent the cable cores from getting close to each other, and can initially offset and buffer external extrusion pressure, reducing the impact of external extrusion pressure on the cable. In addition, the sheath and airbag heat exchange and heat conduction pads can provide multiple limiting wrapping for the cable core, preventing cable core misalignment while dispersing and buffering external extrusion pressure, achieving double stress relief and effectively improving the overall strength of the cable. Through the cooperation of female cover, female cover, threaded ring, and mounting base, it can limit and protect the joints between cables, effectively improving the connection stability of the cable joints and reducing the failure rate of the cable joints.

[0027] In summary, this cable can achieve dual-channel heat exchange both internally and externally based on natural heat dissipation. It effectively combines passive and active heat exchange, balancing energy consumption and heat exchange efficiency. It can effectively remove heat at the junction of the cable cores, achieving more timely and efficient internal and external heat exchange, resulting in more comprehensive heat dissipation for the cable. It can also achieve internal heat circulation exchange, effectively balancing the heat throughout the cable, enabling more stable and efficient transmission, improving its transmission efficiency, and recovering and converting waste electromagnetic energy, thus promoting more efficient and smooth heat exchange. Attached Figure Description

[0028] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0029] In the attached diagram:

[0030] Figure 1 This is a schematic diagram of the structure of the present invention;

[0031] Figure 2 This is a schematic diagram of the core tube mounting structure of the present invention;

[0032] Figure 3 This is a schematic diagram of the variable diameter pipe installation structure of the present invention;

[0033] Figure 4 This is a schematic diagram of the head box mounting structure of the present invention;

[0034] Figure 5 This is a schematic diagram of the dual-pass protection mechanism of the present invention;

[0035] Figure 6 This is a schematic diagram of the outlet tube installation structure of the present invention;

[0036] Figure 7 This is a schematic diagram of the energy storage enhancement mechanism of the present invention;

[0037] Figure 8 This is a schematic diagram of the cannula installation structure of the present invention;

[0038] The diagram is labeled as follows: 1. Sheath; 11. Cable core; 12. Insulating sleeve; 13. Shielding mesh;

[0039] 20. Dual-pass protection mechanism; 201. Pad; 202. Core tube; 203. Reducer; 204. Pilot valve; 205. Groove; 206. Guide valve; 207. Head box; 208. Tail box; 209. Mixing valve; 210. Outlet pipe; 211. Ring box; 212. Filter screen; 213. Inner sheath; 214. Airbag; 215. Thermal pad; 216. Through pipe; 217. Clamp sleeve; 218. Ring gasket; 219. Ring sleeve; 220. Toothed groove; 221. Rib; 222. Protruding beam; 223. Dustproof net;

[0040] 30. Energy storage enhancement mechanism; 301. Female cover; 302. Female cover; 303. Threaded ring; 304. Mounting base; 305. Shaft cylinder; 306. Motor; 307. Guide box; 308. Reciprocating screw; 309. Piston; 310. Insert tube; 311. Port; 312. Gas supply valve; 313. Connecting pipe; 314. Intake valve; 315. Open pipe; 316. Through valve; 317. Mutual inductance coil; 318. Battery; 319. Rectifier; 320. Temperature sensor; 321. Snap ring; 322. Rib; 323. Permanent magnet. Detailed Implementation

[0041] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0042] Example: Figure 1-8 As shown, the present invention provides a technical solution: an energy storage aluminum alloy low-voltage cable, including a sheath 1, and a double-pass protection mechanism 20 installed inside the sheath 1.

[0043] The dual-channel protective mechanism 20 includes a pad 201;

[0044] The sheath 1 has several pads 201 evenly spaced inside. A core tube 202 is inserted through the middle of the side end face of the pad 201. Several reducers 203 are evenly spaced inside the core tube 202. A guide valve 204 is embedded in the top of the outer curved surface of the reducer 203. Several slots 205 are opened at equal angles along the circumference at the position of the reducer 203 on the outer curved surface of the core tube 202. The reducer 203 and the pads 201 are distributed adjacent to each other. The space between two adjacent pads 201 is connected to the reducer 203 through the slots 205 and the guide valve 204. The cross-section of the reducer 203 is hourglass-shaped to facilitate active heat exchange. Guide valves 206 are installed at both ends of the core tube 202. A head box 207 and a tail box 208 are installed at the ends of the two guide valves 206, respectively. A mixing valve 209 is installed at the bottom of the outer curved surface of the head box 207. An outlet pipe 210 is installed at the bottom of the outer curved surface of the tail box 208.

[0045] A ring box 211 is symmetrically installed on the outer curved edge of the sheath 1. A filter screen 212 is embedded in the outer curved surface of the ring box 211. Several cable cores 11 are inserted at equal angles along the circumferential direction on the side end face of the pad 201. An inner sheath 213 is sleeved on the outside of the cable cores 11. An airbag 214 is installed on the outer wall of the inner sheath 213. A heat-conducting pad 215 is sleeved on the outside of the airbag 214. Several tubes 216 are evenly connected at equal intervals on the outer wall of the airbag 214. The inner sheath 213 and the heat-conducting pad 215 fit into the airbag 214. The airbag 214 is filled with helium. The airbag 214 is connected to the inner cavity of the pad 201 through the tubes 216 to balance the temperature of each part. A clamp sleeve 217 is clamped on the outer wall of the heat-conducting pad 215.

[0046] An insulating sleeve 12 is fitted onto the outer wall of the cable core 11, and a shielding mesh 13 is embedded and installed on the outer wall of the insulating sleeve 12 at the position inside the inner sheath 213.

[0047] The outer wall of the inner sheath 213 is evenly and equidistantly equipped with several ring pads 218. The inner wall of the airbag 214 is provided with ring sleeves 219 at the positions corresponding to the ring pads 218. The inner wall of the heat-conducting pad 215 is equipped with several ribs 221 at equal angles along the circumference. The outer wall of the airbag 214 is provided with grooves 220 at the positions corresponding to the ribs 221. The top of the outer wall of the heat-conducting pad 215 is equipped with a protruding beam 222. The heat-conducting pad 215 is integrally formed with the ribs 221 and the protruding beam 222. The ribs 221 fit with the grooves 220. The ring pads 218 fit with the ring sleeves 219 to limit the movement and improve the heat exchange surface. The outer wall of the sheath 1 is embedded with a dustproof net 223 at the position corresponding to the pilot valve 204.

[0048] An energy storage reinforcement mechanism 30 is installed at one end of the sheath 1;

[0049] The energy storage enhancement mechanism 30 includes a mother cover 301;

[0050] A female cover 301 is installed at one end of the sleeve 1, located on one side of the head box 207. A female cover 302 is installed at the other end of the sleeve 1. A threaded ring 303 is rotatably installed at the end of the female cover 302. Mounting seats 304 are installed on the inner walls of both the female cover 301 and the female cover 302. A shaft cylinder 305 is embedded in the middle of the side end face of the mounting seat 304 inside the female cover 301. A motor 306 is installed at one end of the shaft cylinder 305, and a guide box 307 is installed at the other end of the shaft cylinder 305.

[0051] A reciprocating screw 308 is connected to the output shaft end of the motor 306. A piston 309 is threadedly installed on the outside of the reciprocating screw 308 at the position inside the shaft cylinder 305. An insertion tube 310 is installed at the end of the guide box 307. Several through holes 311 are opened at equal angles along the circumferential direction on the outer curved surface of the insertion tube 310. Air supply valves 312 are symmetrically installed on one side of the outer curved surface of the shaft cylinder 305 at the positions on both sides of the piston 309. A connecting pipe 313 is connected to the end of the air supply valve 312.

[0052] The space inside the shaft cylinder 305 located on both sides of the piston 309 is connected to the guide box 307 through the gas supply valve 312 and the connecting pipe 313. The guide box 307 is connected to the guide valve 206 through the insertion pipe 310. The insertion pipe 310 is connected to the inner cavity of the head box 207 through the port 311 to promote efficient heat exchange. On the other side of the outer curved surface of the shaft cylinder 305, the suction valve 314 is symmetrically installed on both sides of the piston 309. The shaft cylinder 305 and the piston 309 are slidably connected and fit together. The reciprocating screw 308 is rotatably connected to the shaft cylinder 305. The gas supply valve 312, suction valve 314, mixing valve 209, guide valve 206 and guide valve 204 are all one-way flow valves to ensure the stability of airflow and avoid backflow.

[0053] An open pipe 315 is connected to the end of the intake valve 314. Several through valves 316 are installed at equal angles along the circumference of the inner wall of an annular box 211. The annular box 211 is filled with activated carbon, and the annular box 211 with the through valves 316 is located on one side of the head box 207. The open pipe 315, through valves 316 and mixing valve 209 are connected to the space on the same side of the mounting base 304. The tail box 208 is connected to another annular box 211 through the outlet pipe 210. Flow restriction and guidance have been implemented to promote heat exchange.

[0054] An inductor coil 317 is fitted onto the outer wall of the inner sheath 213 at the gap position of the annular gasket 218. Several batteries 318 are embedded at equal angles along the circumferential direction on the side end face of the mounting base 304. A rectifier 319 is installed on the side end face of the mounting base 304 inside the batteries 318. A temperature sensor 320 is installed on the bottom of the outer curved surface of the shaft cylinder 305. A retaining ring 321 is fitted onto the side end face of the pad 201. The side end face of the retaining ring 321 is circumferentially... A number of ribs 322 are installed at equal angles. A number of permanent magnet plates 323 are evenly installed on the outer wall of the clamp sleeve 217. The mutual inductance coil 317 charges the storage battery 318 through the rectifier 319. The storage battery 318 supplies power to the temperature sensor 320 and the motor 306 through the rectifier 319. The start and stop of the motor 306 are controlled by the temperature sensor 320. The ribs 322 are spiral-shaped and each permanent magnet plate 323 has the same magnetism to perform energy recovery and conversion.

[0055] The working principle and usage process of this invention: The aluminum alloy low-voltage cable of this energy storage can be used in conjunction with an external energy storage system. In energy storage projects, it is mainly used for the connection of equipment in the station, wiring between battery clusters and low-voltage power distribution system. In actual use, the appropriate size and specification of cable should be selected according to the actual transmission requirements. At the same time, according to the actual transmission requirements, the selected energy storage cables should be connected to each other in sequence and connected to the corresponding external equipment.

[0056] After completing the connection between the cables, rotate each threaded ring 303 in sequence and screw it into the adjacent female cover 301. The threaded ring 303 fixes the corresponding female cover 301 and female cover 302 in sequence. The female cover 301 and female cover 302 protect the joint connection of each cable to ensure the stability of the cable during use. Then the energy storage aluminum alloy low voltage cable can be put into use.

[0057] During normal use of the cable, as the power transmission proceeds, the cable core 11 will heat up accordingly. The heat it emits will be absorbed by the helium gas inside the air bladder 214, which will cause the air pressure inside the air bladder 214 to rise. The air bladder 214 will expand accordingly under the action of the internal air pressure, simultaneously squeezing the inner sheath 213 on the inner side and the heat-conducting pad 215 on the outer side. This will cause the ring sleeve 219 to squeeze the ring pad 218 with greater force, and make the tooth groove 220 and the rib 221 more stably mesh. While preventing the cable cores 11 from being misaligned and shifting, and making the external protective structures more compact and reliable, the heat exchange area can be greatly increased.

[0058] On the one hand, the heat emitted by the cable core 11 can penetrate the inner sheath 213 more quickly and efficiently and be absorbed by the helium inside the airbag 214. On the other hand, the pressure of the helium inside the airbag 214 will fluctuate with the amount of heat absorbed. Under the action of air pressure, it will flow accordingly and always maintain a flow state towards the relatively low pressure side. During the flow, the heat it carries will pass through the larger area of ​​the airbag 214 and exchange heat with the heat-conducting pad 215. Under the conduction of the heat-conducting pad 215, the heat will diffuse into the gaps between the corresponding pads 201 inside the sheath 1 for preliminary spontaneous heat exchange.

[0059] Simultaneously, during the flow of helium, the heat emitted by the cable core 11 is transferred from the inside to the outside. That is, the heat on the outside of each cable core 11 will gradually decrease from the side of the cable core 11 to the side of the heat-conducting pad 215. Correspondingly, the helium pressure will also be distributed in this state. With the connection of the through pipe 216, the helium inside each airbag 214 will flow into each pad 201 under the action of air pressure and converge in the inner cavity of each pad 201. At the same time, it will maintain the flow trend towards the relatively low pressure side, forming an interactive circulation of helium between the airbags 214 on the outside of each cable core 11. In addition, the helium can flow along the radial direction of the cable along the airbag 214 under the action of pressure. During the flow of helium, heat transfer can be promoted and the temperature of each cable core 11 and the radial directions of the cable core 11 can be balanced.

[0060] When the heat emitted by the cable core 11 exceeds the limit of spontaneous heat exchange, the cable temperature will rise accordingly. The temperature sensor 320 will send a signal to the motor 306 to control its start. The motor 306 will drive the piston 309 to move back and forth inside the shaft cylinder 305 through the reciprocating screw 308. Under the flow restriction guidance of the shaft cylinder 305 and the suction valve 314, the external airflow will pass through the filter screen 212, be filtered by the activated carbon inside the ring box 211 on one side of the head box 207, pass through the through valve 316, and be drawn into the shaft cylinder 305 through the open pipe 315. Then it will be pressed into the guide box 307 through the connecting pipe 313. With the connection of the insertion pipe 310, it will be sent into the core tube 202 through the corresponding guide valve 206.

[0061] At the same time, when the airflow flows through the insertion tube 310, a negative pressure will be formed at the port 311 under the static pressure traction. Under the flow restriction guidance of the mixing valve 209, part of the airflow flowing out through the valve 316 will enter the head box 207 under the negative pressure traction and pass through the port 311, and merge with the airflow flowing into the insertion tube 310 through the guide box 307, thereby increasing the air exchange volume. Then the airflow will flow along the core tube 202. When it flows through each reducing pipe 203, its flow velocity will increase due to the narrowing of the flow channel, thereby forming a stronger negative pressure traction force at the guide valve 204.

[0062] Subsequently, the airflow in the space between the corresponding pads 201 inside the sheath 1 will pass through the slot 205 under the Venturi effect, flow into the reducer 203 through the guide valve 204, and merge with the airflow inside the core tube 202, flowing along the core tube 202. At the same time, after the airflow in the space between the corresponding pads 201 inside the sheath 1 flows into the core tube 202, the air pressure in the space between the corresponding pads 201 inside the sheath 1 will decrease. The external airflow will pass through the corresponding dustproof net 223 under the air pressure and enter the space between the corresponding pads 201 inside the sheath 1 to replenish it.

[0063] Finally, the airflow flowing into the core tube 202 will flow into the tail box 208 through the guide valve 206 at the other end, and then flow into another ring box 211 through the outlet pipe 210. After being filtered by activated carbon and filter screen 212, it will be discharged into the atmosphere, and the heat it carries will also be discharged. Since the airflow flows in from the outside of the cable and flows along the core tube 202 in the center of the cable, it can fully absorb the heat discharged from each heat-conducting pad 215 in this process, realize all-round heat exchange inside and outside, and solve the problem of the heat dissipation of each cable core 11 converging point, that is, the heat in the center of each cable core 11 cannot be discharged in time.

[0064] During the use of the cable, when the cable is subjected to external pressure and bending, the helium inside the reinforcing bar 322 and the air bladder 214 will be compressed. The reinforcing bar 322 will deform and expand accordingly to provide initial buffering, and the helium will flow under the external pressure to further disperse and resolve the external force. At the same time, the magnetic repulsion generated between the permanent magnet sheets 323 can prevent the cable cores 11 from getting close to each other and prevent the cable cores 11 from bending. In addition, the limiting effect of the retaining ring 321 and the reinforcing bar 322 can make the cable more resilient.

[0065] Airbag 214 lifespan ≥ 10 4 Sub-thermal cycles, leakage rate ≤1% / year, dielectric strength ≥5 kV / mm;

[0066] Similarly, during the use of the cable, when current flows through the cable core 11, an induced current is generated in the mutual inductance coil 317. After being converted into pulsating DC by the rectifier 319, it is then processed by the filtering and voltage regulation unit in the control circuit to obtain a stable DC power that can be used by the storage battery 318 and downstream electronic devices. Then, the storage battery 318 is charged and stored to provide power for the temperature sensor 320 and the motor 306.

[0067] During application, the induced current generated in the mutual inductance coil 317 mainly powers the temperature sensor 320. The specific power of the battery 318 and the motor 306 can be adaptively selected according to actual needs. The motor 306 can also be provided with power compensation through an external power source. Different on-site solutions can be selected for on-site operation or directly deleted.

[0068] Furthermore, helium can be replaced with nitrogen or argon depending on the requirements.

[0069] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An energy storage aluminum alloy low-voltage cable, comprising a sheath (1), characterized in that: The sheath (1) is equipped with a double-pass protection mechanism (20). The dual-passage protection mechanism (20) includes a pad (201); The sheath (1) has several pads (201) evenly installed at equal intervals inside. A core tube (202) is inserted through the middle of the side end face of the pad (201). Several reducing tubes (203) are evenly installed at equal intervals inside the core tube (202). A guide valve (204) is embedded in the top of the outer curved surface of the reducing tube (203). Several slots (205) are opened at equal angles along the circumference at the position of the reducing tube (203) on the outer curved surface of the core tube (202). Guide valves (206) are installed at both ends of the core tube (202). A head box (207) and a tail box (208) are respectively installed at the ends of the two guide valves (206). A mixing valve (209) is installed at the bottom of the outer curved surface of the head box (207). An outlet pipe (210) is installed at the bottom of the outer curved surface of the tail box (208). The outer curved surface of the sheath (1) is symmetrically equipped with a ring box (211), and a filter screen (212) is embedded in the outer curved surface of the ring box (211). Several cable cores (11) are inserted at equal angles along the circumferential direction on the side end face of the pad (201). An inner sheath (213) is sleeved on the outside of the cable core (11). An airbag (214) is installed on the outer wall of the inner sheath (213). A heat-conducting pad (215) is sleeved on the outside of the airbag (214). Several through tubes (216) are evenly connected at equal intervals on the outer wall of the airbag (214). A clamp sleeve (217) is clamped on the outer wall of the heat-conducting pad (215). A dustproof net (223) is embedded in the outer wall of the sheath (1) at the position corresponding to the pilot valve (204). The reducing pipe (203) and the pad (201) are distributed adjacent to each other, and the space between two adjacent pads (201) is connected to the reducing pipe (203) through the slot (205) and the pilot valve (204). The cross section of the reducing pipe (203) is hourglass-shaped. The inner sheath (213) and the heat-conducting pad (215) are both fitted with the airbag (214). The airbag (214) is filled with helium and is connected to the inner cavity of the pad (201) through the tube (216).

2. The energy storage aluminum alloy low-voltage cable according to claim 1, characterized in that, An insulating sleeve (12) is fitted onto the outer wall of the cable core (11), and a shielding mesh (13) is embedded in the outer wall of the insulating sleeve (12) at the position inside the inner sheath (213). The inner sheath (213) has several ring pads (218) evenly installed at equal intervals on its outer wall. The inner wall of the airbag (214) is provided with a ring sleeve (219) at the position corresponding to the ring pads (218). The inner wall of the heat-conducting pad (215) is provided with several ribs (221) at equal angles along the circumference. The outer wall of the airbag (214) is provided with a tooth groove (220) at the position corresponding to the ribs (221). The top of the outer wall of the heat-conducting pad (215) is provided with a protruding beam (222).

3. The energy storage aluminum alloy low-voltage cable according to claim 2, characterized in that, The heat-conducting pad (215) is integrally formed with the rib (221) and the protruding beam (222), the rib (221) is matched with the tooth groove (220), and the ring pad (218) is matched with the ring sleeve (219).

4. The energy storage aluminum alloy low-voltage cable according to claim 1, characterized in that, An energy storage reinforcement mechanism (30) is installed at the end of the sheath (1); The energy storage enhancement mechanism (30) includes a mother cover (301); One end of the sheath (1) is located on one side of the head box (207) and a female cover (301) is installed. The other end of the sheath (1) is equipped with a female cover (302). A threaded ring (303) is rotatably installed at the end of the female cover (302). Mounting seats (304) are installed on the inner walls of both the female cover (301) and the female cover (302). A shaft cylinder (305) is embedded in the middle of the side end face of the mounting seat (304) inside the female cover (301). A motor (306) is installed at one end of the shaft cylinder (305), and a guide box (307) is installed at the other end of the shaft cylinder (305). The output shaft of the motor (306) is connected to a reciprocating screw (308). A piston (309) is threadedly installed on the outside of the reciprocating screw (308) at a position inside the shaft cylinder (305). A tube (310) is installed at the end of the guide box (307). Several openings (311) are opened at equal angles along the circumferential direction on the outer curved surface of the tube (310). Air supply valves (312) are symmetrically installed on one side of the outer curved surface of the shaft cylinder (305) at positions on both sides of the piston (309). A connecting pipe (313) is connected to the end of the air supply valve (312). An air intake valve (314) is symmetrically installed on the other side of the outer curved surface of the shaft cylinder (305) at positions on both sides of the piston (309). An opening pipe (315) is connected to the end of the air intake valve (314). Several through valves (316) are installed at equal angles along the circumferential direction on the inner wall of one of the ring boxes (211). The inner sheath (213) has a mutual inductance coil (317) sleeved on the outer wall at the gap position of the ring pad (218). Several batteries (318) are embedded and installed at equal angles along the circumferential direction on the side end face of the mounting base (304). A rectifier (319) is installed on the side end face of the mounting base (304) at the inner side position of the batteries (318). A temperature sensor (320) is installed on the bottom of the outer curved surface of the shaft cylinder (305). A retaining ring (321) is sleeved on the side end face of the pad (201). Several ribs (322) are installed at equal angles along the circumferential direction on the side end face of the retaining ring (321). Several permanent magnet sheets (323) are evenly installed at equal intervals on the outer wall of the clamp sleeve (217).

5. The energy storage aluminum alloy low-voltage cable according to claim 4, characterized in that, The ring box (211) is filled with activated carbon and is equipped with a through valve (316). The ring box (211) is located on one side of the head box (207). The opening pipe (315), through valve (316) and mixing valve (209) are connected to the space on the same side of the mounting base (304). The tail box (208) is connected to another ring box (211) through the outlet pipe (210).

6. The energy storage aluminum alloy low-voltage cable according to claim 4, characterized in that, The space inside the cylinder (305) located on both sides of the piston (309) is connected to the guide box (307) through the gas supply valve (312) and the connecting pipe (313). The guide box (307) is connected to the guide valve (206) through the insertion pipe (310). The insertion pipe (310) is connected to the inner cavity of the head box (207) through the port (311).

7. The energy storage aluminum alloy low-voltage cable according to claim 4, characterized in that, The cylinder (305) is slidably connected to the piston (309), and the cylinder (305) and the piston (309) are engaged. The reciprocating screw (308) is rotatably connected to the cylinder (305). The air supply valve (312), the air intake valve (314), the air mixing valve (209), the guide valve (206), and the pilot valve (204) are all one-way flow valves.

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