Cable conductor

Abstract

The invention relates to the field of cable manufacturing, in particular to a cable. The invention provides a cable which comprises an outer sheath, a buffer layer, an inner sheath, a filling layer and at least one core wire, the core wire is arranged in the inner sheath, and the filling layer is used for filling a gap between the core wire and the inner sheath; the buffer layer is arranged between the inner sheath and the outer sheath; wherein the buffer layer is provided with an inductor assembly, and the inductor assembly is used for receiving at least one of an external pressure signal and a sound wave signal, so that the buffer layer can intelligently respond according to the pressure signal and / or the sound wave signal to protect the cable, the protection strength is improved, the service life is longer, and the light weight effect is achieved.

Description

Technical Field

[0001] This application relates to the field of cable manufacturing, and particularly to a cable. Background Art

[0002] As the core carrier for power or signal transmission, cables are widely used in power systems, communication networks, industrial equipment, consumer electronics and other fields. Cables often face mechanical external impacts in power transmission, communication and industrial applications, such as vehicle rolling, equipment extrusion or construction collision, etc., which are likely to cause damage to the insulation layer, breakage of the conductor or shielding failure, seriously affecting the service life and safety.

[0003] In the prior art, cables usually add a metal armor layer in the protective layer to improve the mechanical strength of the cables to cope with external rolling or collision.

[0004] However, the metal armor is heavy and is likely to lose its protective effect under the conditions of frequent bending or high-frequency impact. Summary of the Invention

[0005] This application provides a cable to solve the technical problems that the existing metal armor is heavy and is likely to lose its protective effect under the conditions of frequent bending or high-frequency impact.

[0006] This application provides a cable, which includes an outer sheath, a buffer layer, an inner sheath, a filling layer and at least one core wire. The core wire is arranged inside the inner sheath, and the filling layer is used to fill the gap between the core wire and the inner sheath; the buffer layer is arranged between the inner sheath and the outer sheath;

[0007] Wherein, the buffer layer is provided with a sensor assembly, and the sensor assembly is used to receive at least one of external pressure signals and sound wave signals, so that the buffer layer can expand according to the pressure signal and / or the sound wave signal to protect the cable.

[0008] The cable provided by this application is provided with a sensor assembly on the buffer layer. When an external vehicle or large mechanical equipment is about to roll over or collide with the cable, the sensor assembly can sense the pressure or sound wave in advance and control the expansion of the buffer layer to improve the protection ability of the cable. After the external pressure or collision disappears, the buffer layer can return to its original state. The buffer layer can expand in a timely and intelligent manner and remain in its original state when there is no external pressure, which extends the service life and has a lightweight effect.

[0009] As an optional implementation manner, the sensor assembly includes a terminal receiver and a controller. The terminal receiver is arranged on the buffer layer, and the controller is electrically connected to the terminal receiver; the buffer layer further includes a gas interface and a compressed air generator. The gas interface is arranged on the buffer layer, and the compressed air generator is communicated with the gas interface;

[0010] The terminal receiver is used to detect the pressure signal and / or acoustic signal outside the cable, and the controller is electrically connected to the compressed air generator. The controller is used to control the compressed air generator to introduce gas into the gas interface according to the pressure signal and / or acoustic signal.

[0011] With such a setting, the buffer layer can be flexibly controlled to expand or return to its original state through the sensor assembly and the compressed air generator, with precise triggering and rapid response.

[0012] As an alternative embodiment, the controller is used to calculate the expected bearing weight according to the pressure signal and / or acoustic signal, send a start signal to the compressed air generator, and control the compressed air generator to introduce gas with a corresponding proportion into the gas interface.

[0013] With such a setting, the inflation ratio can be controlled according to the pressure magnitude or impact intensity, so that while the buffer layer has a protective effect, energy consumption can be reduced.

[0014] As an alternative embodiment, the buffer layer is further provided with a cooling device. The cooling device is arranged between the compressed air generator and the gas interface, and the cooling device is used to cool the high-temperature compressed air generated by the compressed air generator.

[0015] With such a setting, the compressed air can be quickly cooled before entering the buffer layer, preventing the high-temperature air from aging or degrading the performance of the buffer layer.

[0016] As an alternative embodiment, the cable further includes a protective layer. The protective layer is arranged between the buffer layer and the outer sheath, and the protective layer is used to protect the buffer layer and the sensor assembly.

[0017] With such a setting, the buffer layer and the sensor assembly can be protected by the protective layer, preventing the buffer layer or the sensor assembly from being damaged under external pressure or impact.

[0018] As an alternative embodiment, the protective layer is a braided high-strength aluminum alloy layer.

[0019] With such a setting, the buffer layer and the sensor assembly can be protected by the braided high-strength aluminum alloy layer, and at the same time, the cable can be lightened.

[0020] As an alternative embodiment, the core wire includes a conductor and an insulating layer. The insulating layer is used to wrap the conductor, and the outside of the insulating layer is in contact with the filling layer.

[0021] With such a setting, the insulating layer and the filling layer can absorb a certain amount of external impact force to protect the conductor.

[0022] As an alternative embodiment, the insulating layer is made of cross-linked polyethylene material, and the filling layer is made of polypropylene material.

[0023] With such a setting, the cross-linked polyethylene material and the polypropylene material can produce a certain synergistic effect. On the one hand, it strengthens the insulation effect, and on the other hand, it enhances the buffering performance.

[0024] As an alternative embodiment, the cable further includes a tape, which is disposed between the core wire and the inner sheath, and the tape is used to tightly wrap the core wire and the filling layer.

[0025] With such a setting, the tape can tightly wrap the scattered core wire and the filling material, facilitating the assembly of the cable.

[0026] As an alternative embodiment, the inner sheath and the outer sheath are made of polyvinyl chloride material.

[0027] With such a setting, the mechanical strength of the cable can be increased through the double polyvinyl chloride layer.

[0028] The present application provides a cable, including an outer sheath, a buffer layer, an inner sheath, a filling layer, and at least one core wire. The core wire is disposed inside the inner sheath, and the filling layer is used to fill the gap between the core wire and the inner sheath; the buffer layer is disposed between the inner sheath and the outer sheath; wherein, the buffer layer is provided with a sensor assembly, and the sensor assembly is used to receive at least one of an external pressure signal and an acoustic wave signal, so that the buffer layer can intelligently respond according to the pressure signal and / or the acoustic wave signal to protect the cable, increasing the protection strength, having a longer service life, and having a lightweight effect.

[0029] In addition to the technical problems solved by the embodiments of the present application described above, the technical features constituting the technical solutions, and the beneficial effects brought by the technical features of these technical solutions, the other technical problems that the cable provided by the present application can solve, the other technical features included in the technical solutions, and the beneficial effects brought by these technical features will be further described in detail in the specific implementation manners. Description of the Drawings

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0031] Figure 1 It is a cross-sectional structure diagram of the cable provided by the embodiment of the present application;

[0032] Figure 2 It is a schematic diagram of the intelligent response of the buffer layer of the cable provided by the embodiment of the present application.

[0033] Description of the Reference Numerals:

[0034] 100 - Cable;

[0035] 110 - Outer sheath; 120 - Protective layer; 130 - Buffer layer; 131 - Gas interface; 132 - Terminal receiver; 140 - Inner sheath; 150 - Tape; 160 - Filling layer; 170 - Core wire; 171 - Insulating layer; 172 - Conductor. Detailed implementation manners

[0036] In the description of this application, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, or indirectly connected through an intermediate medium, and can be the internal connection of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0037] In the description of this application, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to this application.

[0038] The terms "first", "second", "third" (if any) in the description, claims and drawings of this application are used to distinguish similar objects, and do not have to be used to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of this application described here can be implemented in an order different from those illustrated or described here.

[0039] In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or maintenance tool that includes a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or maintenance tools.

[0040] To make the objectives, technical solutions and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, rather than all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.

[0041] As the core carrier for power or signal transmission, cable wires are widely used in power systems, communication networks, industrial equipment, consumer electronics and other fields. Cable wires often face mechanical external impacts in power transmission, communication and industrial applications, such as vehicle rolling, equipment extrusion or construction collision, etc., which can easily lead to damage of the insulation layer, fracture of the conductor or failure of the shielding, seriously affecting the service life and safety.

[0042] In the prior art, cable wires usually add a metal armor layer in the protective layer to enhance the mechanical strength to cope with external rolling or collision.

[0043] However, the metal armor makes the cable wire heavy, inconvenient for transportation and laying, and the bending performance of the cable wire with metal armor is not good. It will generate fatigue under frequent bending or high-frequency impact conditions, resulting in a decrease in compressive performance and even loss of protective effect.

[0044] To solve the above technical problems, the present application provides a cable wire, which is protected by a buffer layer. An inductor component is provided on the buffer layer, and the inductor component can detect external pressure signals and / or acoustic signals, so that the buffer layer can expand rapidly to cope with the rolling or collision of external vehicles, large equipment, etc. The buffer layer returns to its original state when there is no pressure, which can prevent the buffer layer from being in an expanded state for a long time and causing a decrease in compressive performance, increase the protection strength, extend the service life, and has a lightweight effect, which is convenient for the transportation and laying of the cable wire.

[0045] First, the application scenarios of the cable wire provided by the embodiments of the present application will be illustrated by examples.

[0046] The cable wire provided by the embodiments of the present application is applied to power systems, communication networks, industrial equipment, consumer electronics and other fields, and can perform power transmission or signal transmission. The cable wire includes but is not limited to low-voltage cables, medium-voltage cables, high-voltage cables and communication cables, and the embodiments of the present application do not make specific limitations.

[0047] Figure 1 is the cross-sectional structure diagram of the cable wire provided by the embodiments of the present application; Figure 2 is the schematic diagram of the intelligent response of the buffer layer of the cable wire provided by the embodiments of the present application.

[0048] See Figure 1 and Figure 2 As shown, the present application provides a cable wire 100, which includes an outer sheath 110, a buffer layer 130, an inner sheath 140, a filling layer 160 and at least one core wire 170. The core wire 170 is arranged inside the inner sheath 140, and the filling layer 160 is used to fill the gap between the core wire 170 and the inner sheath 140; the buffer layer 130 is arranged between the inner sheath 140 and the outer sheath 110.

[0049] It can be understood that the outer sheath 110 is in direct contact with the external environment, providing the most basic mechanical protection and weather resistance; the buffer layer 130 is the main protection layer, used to disperse pressure and protect the core wire 170; the inner sheath 140 is located between the buffer layer 130 and the filling layer 160, used to protect and fix the core wire 170, and can cooperate with the buffer layer 130 to form a dynamic buffer space; the filling layer 160 can be a flexible material, used to fill the gap between the core wire 170 and the inner sheath 140. On the one hand, it can fix the core wire 170, and on the other hand, it can absorb the external impact energy and has a certain protective effect; the core wire 170 can be one or more. Multiple core wires 170 can be arranged side by side, parallel to each other without entanglement, or can be helically stranded, and can be set according to the specific type of the cable 100.

[0050] As a possible implementation, the buffer layer 130 is provided with a sensor assembly, and the sensor assembly is used to receive at least one of the external pressure signal and the sound wave signal, so that the buffer layer 130 can expand according to the pressure signal and / or the sound wave signal to protect the cable 100.

[0051] It can be understood that the buffer layer 130 can intelligently respond to external pressure or impact through the sensor assembly to quickly expand or return to its original state; the sensor assembly can be embedded in the outer wall of the buffer layer 130 or attached to the inner side of the outer sheath 110, used to detect the pressure signal and / or the sound wave signal, and calculate the expected pressure or collision to be borne according to the type, intensity and distance of the pressure signal and / or the sound wave signal, so as to control the expansion of the buffer layer 130 and the expansion degree of the buffer layer 130.

[0052] It should be noted that the sensor assembly can control the intelligent response of the buffer layer 130 only according to one of the pressure signal or the sound wave signal, or can also analyze and calculate according to both the pressure signal and the sound wave signal to control the intelligent response of the buffer layer 130.

[0053] As a possible implementation, the sensor assembly includes a terminal receiver 132 and a controller. The terminal receiver 132 is arranged in the buffer layer 130, and the controller is electrically connected to the terminal receiver 132; the buffer layer 130 further includes a gas interface 131 and a compressed air generator. The gas interface 131 is arranged in the buffer layer 130, and the compressed air generator is communicated with the gas interface 131; wherein, the terminal receiver 132 is used to detect the pressure signal and / or the sound wave signal outside the cable 100, and the controller is electrically connected to the compressed air generator, and the controller is used to control the compressed air generator to introduce gas into the gas interface 131 according to the pressure signal and / or the sound wave signal.

[0054] It should be noted that the terminal receiver 132 can be integrated with a pressure sensor or an acoustic wave receiver, or both can be integrated into the terminal receiver 132 simultaneously. The terminal receiver 132 is used to receive and detect external pressure signals and / or acoustic wave signals. The controller determines whether to control the operation of the compressed air generator according to the pressure signal and / or acoustic wave signal. The compressed air generator can generate compressed air in an extremely short time and introduce the compressed air into the buffer layer 130 through the gas interface 131.

[0055] Exemplarily, the pressure sensor can be a thin-film pressure sensor, and the acoustic wave receiver can be a piezoelectric ceramic sheet. Both are integrated into the terminal receiver 132. The compressed air generator can be a micro electromagnetic pump, and the gas interface 131 can be a porous silica gel diverter, which can introduce gas into different positions of the buffer layer 130 simultaneously to prevent local pressure from being too high. The buffer layer 130 can be an airbag.

[0056] Exemplarily, the terminal receivers 132 can be distributed in a grid pattern. 4-6 terminal receivers 132 are arranged per square meter of the buffer layer 130. The multiple terminal receivers 132 are arranged at intervals along the circumferential and axial directions of the buffer layer 130 to avoid detection blind spots. The compressed air generators can be arranged in sections along the length direction of the cable 100, which is required to save costs while shortening the gas supply path to prevent untimely response. The controller can be a low-power MCU (Microcontroller Unit). The low-power MCU can be arranged in the same cavity as the terminal receiver 132, or can be arranged in the same cavity as the compressed air generator.

[0057] As a possible implementation, the controller is used to calculate the expected weight to be borne according to the pressure signal and / or acoustic wave signal, send a start signal to the compressed air generator, and control the compressed air generator to introduce gas in a corresponding proportion into the gas interface 131.

[0058] Exemplarily, when a large device such as an excavator approaches the cable, all components work together. The terminal receiver 132 detects the pressure signal and acoustic wave signal generated by the vibration of the device in real time, and filters out environmental noise through an anti-interference algorithm. The controller calculates the expected weight to be borne and the pressure-receiving position according to the signal characteristics and the distance of the signal source. If it is determined that there is a threat, it immediately sends a signal to control the start of the compressed air generator in the response area. The compressed air generator generates an amount of compressed air corresponding to the expected weight to be borne in an extremely short time. The compressed air is quickly injected into the airbag buffer layer 130 through the porous diverter interface, causing its volume to expand to disperse the impact force. After completion, the controller returns to the low-power mode. The entire process is completed within 300 ms to ensure that the airbag expands before the mechanical impact to protect the cable 100.

[0059] In another embodiment, the terminal receiver 132 detects the pressure signal and acoustic signal generated by the vibration of the device in real time, and filters out the ambient noise through an anti-interference algorithm; the controller compares with the large model database according to the signal characteristics and the distance of the signal source to determine whether there is a car running over, a large device collision or other pressure forms from the outside, and at the same time determines whether there is a threat and the threat level. For example, the threat level of a car running over is level two, and the controller controls the local inflation of the airbag by 50%; the threat level of an explosion or a large device impact is level one, and the controller controls the full-segment inflation of the airbag by 100%. After completion, the controller returns to the low-power mode, and the whole process is completed within 300 ms to ensure that the airbag expands before the mechanical impact to protect the cable 100. In this embodiment, the calculation power consumption of the controller can be saved by presetting the threat level.

[0060] In some embodiments, the sensor assembly includes a sensing layer, a processing layer, and a communication layer. The sensing layer employs a quantum dot strain sensor array to form a high-density distributed sensing network on the airbag surface, simulating the distributed sensing mechanism of the human tactile nervous system. The sensor assembly can adopt independent sensor units of 16 rows × 16 columns, with a total of 256 detection nodes. Exemplarily, a single sensor covers an area of 5 mm × 5 mm, and the entire array can monitor the airbag surface of approximately 8 cm × 8 cm, breaking through the accuracy limitations of traditional strain gauges and achieving nanoscale deformation detection. The sensor can also adopt a hybrid structure of multi-layer sensors and convolutional neural networks and has the ability to learn adaptive weight distribution; the sensing layer can also be provided with a piezoelectric micro-vibration compensation module, which can include a piezoelectric ceramic array, a MEMS (Micro-Electro-Mechanical Systems) accelerometer, and an adaptive controller. The piezoelectric ceramic array is used to generate reverse vibration waves, the MEMS accelerometer can monitor vibrations, and the adaptive controller can perform real-time phase adjustment. The piezoelectric micro-vibration compensation module can actively cancel the signal noise caused by wind vibration, mechanical vibration, etc. of the cable 100 and automatically adjust the compensation intensity according to the environmental vibration intensity; among them, the sensor can adopt a multi-modal environmental perception unit, which can perceive temperature, humidity, and pressure and adjust the inflation degree of the airbag according to the external temperature, humidity, and pressure. It should be noted that the processing layer is used to process sensor signals and can include a dedicated neural processing unit, an edge computing coprocessor, and a security encryption module; the dedicated neural processing unit processes dynamic pressure signals and acoustic signals through a spiking neural network, simulating the millisecond-level response of biological nerves; the edge computing coprocessor cooperates with the dedicated neural processing unit to process signals, can connect the high-real-time dedicated neural processing unit with complex decision-making logic, offload the non-temporal critical tasks of the dedicated neural processing unit, and take over the basic protection function when the dedicated neural processing unit fails; the security encryption module ensures the full-link security from data to equipment through hardware-level encryption, device authentication, and anti-tampering design, defends against physical and network attacks, and guarantees the reliable operation of the system in extreme environments.

[0061] It should be noted that the sensor assembly is also provided with a temperature compensation unit, which can perform temperature compensation on the sensor assembly so that the sensor can maintain detection accuracy when the temperature changes. The temperature compensation unit includes an on-chip temperature control module and a differential detection structure. The on-chip temperature control module integrates a micro thermoelectric cooler, which can stabilize the core temperature of the sensor at 25 ± 0.5 °C. The differential detection structure cancels the thermal expansion effect through symmetrically designed cantilever beams. The temperature compensation unit can also be optimized through federated learning, and the cloud aggregates the compensation models of terminals in different climate zones and distributes region-adaptive parameters.

[0062] It should be noted that the communication layer may include a multi-protocol adaptive radio frequency module, a 5G / 6G compatible baseband, and a bionic anti-jamming antenna array. The multi-protocol adaptive radio frequency module can dynamically select the optimal protocol according to signal quality, distance, and energy consumption. The 5G / 6G compatible baseband adopts a software-defined radio architecture, which can not only achieve wide-area coverage but also enable millimeter waves for high-speed emergency communication. The built-in network slicing technology reserves a dedicated channel for protection instructions. The bionic anti-jamming antenna array can maintain a signal-to-noise ratio of more than 35 dB in an interference environment. When the three work together, sensor data is first encoded and encrypted by the baseband, then the radio frequency module selects the best transmission path, and finally, it is sent through the directional beam of the antenna array. The whole process can be completed within 10 ms to ensure communication reliability in extreme environments.

[0063] It should be noted that the software architecture of the sensor component adopts a three-layer bionic intelligent design, including a bionic perception engine, a large model interface, and an adaptive calibration system. The bionic perception engine simulates the millisecond-level response of biological nerves through a spiking neural network and dynamically adjusts the weights to identify abnormal vibration patterns of the cable. The large model interface constructs cloud collaborative intelligence, uses federated learning to achieve multi-terminal collaborative training, and injects the capabilities of the cloud large model into the edge terminal through knowledge distillation to form a dynamically evolving protection strategy. The adaptive calibration system continuously fuses multi-sensor data for online self-calibration, uses a long-term drift compensation algorithm to counteract environmental aging, and ensures that the measurement error does not exceed 0.5% within a 10-year cycle. The three-layer architecture is linked through an event-driven mechanism, from real-time perception to continuous evolution, fully replicating the "perception-decision-adaptation" closed-loop of the biological system.

[0064] In some embodiments, the sensor can use MEMS nanoimprint technology to batch replicate quantum dot sensor microstructures on a silicon substrate through a high-precision mold, achieving sub-micron-level consistency of a 16×16 array. The sensor, processing chip, temperature compensation unit, communication module, etc. are packaged through 3D heterogeneous integration, reducing the volume of the sensor component. The hardware of the sensor component can use a bionic flexible substrate material to mimic the characteristics of human skin, giving the device environmental adaptability similar to biological tissues.

[0065] In some embodiments, the sensor component optimizes energy efficiency through an event-driven sampling mechanism, dynamic voltage and frequency adjustment, and an energy harvesting module. Exemplarily, the relevant processing and control modules are only activated when the pressure change exceeds a threshold, with low static power consumption, and the processor state is intelligently adjusted according to the task load to improve the energy efficiency ratio. A piezoelectric / thermoelectric dual-mode energy harvesting system is provided to self-power using cable vibration and temperature difference, enabling battery-free operation.

[0066] As a possible implementation, the buffer layer 130 is also provided with a cooling device, which is arranged between the compressed air generator and the gas interface 131, and the cooling device is used to cool the compressed gas generated by the compressed air generator.

[0067] It is understandable that after the compressed gas is produced, its temperature is usually relatively high. If it is directly introduced into the airbag, it may accelerate the aging of the gas interface 131 and the airbag, reduce the protective performance of the airbag or even cause air leakage, resulting in the loss of protective performance. By adding a cooling device after the compressed air generator, the aging of the airbag caused by high temperature can be prevented. Among them, the airbag material needs to meet the requirements of high strength, heat resistance, flexibility and environmental stability, such as thermoplastic polyurethane, silicone rubber, fluororubber, etc.

[0068] It should be noted that the cooling device can be arranged at the outlet end of the compressed air generator, and the cooled gas is connected to different air holes of the gas interface 131 through multiple pipelines. Among them, the cooling device can be air-cooled or micro-liquid-cooled, etc., and can be selected according to the specific installation and laying conditions of the cable 100.

[0069] As a possible implementation, the cable 100 further includes a protective layer 120, which is arranged between the buffer layer 130 and the outer sheath 110, and the protective layer 120 is used to protect the buffer layer 130 and the sensor assembly.

[0070] It is understandable that when there is a situation such as extrusion by a sharp object from the outside or misoperation during construction, it is easy to damage the buffer layer 130 and the sensor assembly. By arranging the protective layer 120 between the buffer layer 130 and the outer sheath 110, the buffer layer 130 and the sensor assembly can be protected, and further protection can be provided for the core wire 170. Among them, the protective layer 120 can be an aramid fiber braided layer, which has the functions of light weight and puncture resistance. The protective layer 120 can also be a metal wrap, which has the function of electromagnetic shielding. The protective layer 120 can also be a polyurethane elastomer, which can increase the flexibility of the cable 100. The protective layer 120 can also select other materials and fixing methods according to the specific use scenario.

[0071] In some embodiments, the protective layer 120 is a braided high-strength aluminum alloy layer.

[0072] It is understandable that the braided structure has a certain flexibility compared with the solid metal layer. While ensuring strength, it allows a certain degree of bending. The braided structure can disperse the external pressure and protect the internal buffer layer 130 and the sensor from deformation and impact; the high-strength aluminum alloy layer can be naturally anti-corrosive through the aluminum alloy surface oxide layer and has a light-weight effect, with a weight lower than that of steel tape armoring. In addition, the metal braided layer has a certain electromagnetic shielding effect. The braided high-strength aluminum alloy layer can significantly improve the tensile capacity of the cable and prevent the buffer layer 130 and the internal sensor assembly from being damaged by external impact, extrusion or piercing by sharp objects.

[0073] Exemplarily, the braided high-strength aluminum alloy layer may be a double-layer braided layer, with thin wires used in the inner layer to provide flexibility and thick wires used in the outer layer to enhance protection.

[0074] As a possible implementation manner, the core wire 170 includes a conductor 172 and an insulating layer 171 . The insulating layer 171 is used to wrap the conductor 172 , and the outer side of the insulating layer 171 is in contact with the filling layer 160 .

[0075] It is understandable that the core wire 170 transmits electrical energy or signals through the conductor 172, and the conductor 172 can be made of annealed soft copper wire or annealed soft aluminum wire for tight compression and twisting, wherein the copper conductor 172 has higher conductivity, lower transmission loss, higher mechanical strength, and resistance to bending fatigue, and the aluminum conductor 172 is lighter and has lower cost, and can be selected according to the specific usage scenario. After the conductor 172 wires are compressed and bitten, they are wrapped by the insulating layer 171 to insulate the conductor 172 and the outer layer.

[0076] As a possible implementation manner, the insulating layer 171 is made of cross-linked polyethylene material, and the filling layer 160 is made of polypropylene material.

[0077] It should be noted that the cross-linked polyethylene as the insulating layer 171 has a long-term working temperature of 90°C and a short-circuit tolerance temperature of 250°C. It can be used in high-temperature scenarios, and the cross-linked structure is resistant to aging and chemical corrosion, and has a service life of more than 30 years. As the insulating layer 171, it can better protect the conductor 172. The cross-linked polyethylene insulating layer 171 can be extruded by an extruder. Before extruding the cross-linked polyethylene, the conductor 172 can be heated to 80°C~100°C to avoid delamination caused by the difference in cold and hot shrinkage. In some embodiments, a semi-conductive layer, such as a carbon black compound, can be added between the conductor 172 and the cross-linked polyethylene insulating layer 171 so that the electric field can be evenly distributed when the conductor 172 is energized.

[0078] In some embodiments, the filling layer 160 is filled with polypropylene rope. By spirally winding or braiding multiple strands of polypropylene rope, the gaps between the cable core wires 170 can be ensured to be uniform, and the dielectric constant of the polypropylene rope is close to that of the cross-linked polyethylene insulation layer 171, which has an insulating effect.

[0079] As a possible implementation, the cable 100 further includes a wrapping tape 150 , which is disposed between the core wire 170 and the inner sheath 140 , and is used to wrap the core wire 170 and the filling layer 160 tightly.

[0080] It can be understood that by compressing the core wire 170 and the filling layer 160 through the tension of the wrapping tape 150, the core wire 170 can be prevented from deflecting, and the core wire 170 and the filling layer 160 can be approximately cylindrical with a cross-section approximately circular. After the wrapping tape 150 is wrapped, the inner side contacts the filling layer 160 or the core wire 170, and the outer layer contacts the inner sheath 140.

[0081] Among them, the wrapping tape 150 can be made of polyester non-woven fabric, polypropylene non-woven fabric, flame-retardant non-woven fabric, etc., and can be selected according to the specific usage scenario. When wrapping the wrapping tape 150, the wrapping pitch and overlap rate need to be controlled to avoid exposed gaps while saving materials. The wrapping tension of the wrapping tape 150 should not be too small to prevent the core wire 170 and the filling layer 160 from shifting, and the wrapping tension of the wrapping tape 150 should not be too large to prevent the wrapping tape 150 from breaking.

[0082] As a possible implementation, the inner sheath 140 and the outer sheath 110 are made of polyvinyl chloride material.

[0083] It can be understood that the polyvinyl chloride inner sheath 140 and the outer sheath 110 have the advantages of controllable cost, mature process, and adjustable performance. Polyvinyl chloride has the effects of flame retardancy and cold resistance. The inner sheath 140 and the outer sheath 110 can be heated, plasticized, and extruded through a polyvinyl chloride extruder to be continuously formed into hollow sheaths with different inner diameters. The inner sheath 140 and the outer sheath 110 can absorb external impact forces and cooperate with the protective layer 120 and the buffer layer 130 to jointly protect the core wire 170.

[0084] The working processes of the sensing layer, processing layer, and communication layer of the sensor component are introduced below:

[0085] (1) The sensor array collects raw strain data.

[0086] (2) The edge dedicated neural processing unit performs feature extraction and preliminary classification.

[0087] (3) The cloud large model completes fine analysis and model update.

[0088] (4) The incremental learning result is transmitted back to the terminal.

[0089] It can be understood that the sensor component organically combines the principles of bionics, quantum sensing technology, and artificial intelligence large models, improving the detection accuracy and making it more intelligent.

[0090] This application provides a cable 100, including an outer sheath 110, a buffer layer 130, an inner sheath 140, a filling layer 160, and at least one core wire 170. The core wire 170 is arranged inside the inner sheath 140, and the filling layer 160 is used to fill the gap between the core wire 170 and the inner sheath 140; the buffer layer 130 is arranged between the inner sheath 140 and the outer sheath 110; among them, the buffer layer 130 is provided with a sensor component, and the sensor component is used to receive at least one of the external pressure signal and the acoustic signal, so that the buffer layer 130 can intelligently respond according to the pressure signal and / or the acoustic signal to protect the cable 100, increasing the protection intensity, having a longer service life, and having a lightweight effect.

[0091] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than limiting them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the various embodiments of the present application.

Claims

1. A cable, characterized in that, It includes an outer sheath (110), a buffer layer (130), an inner sheath (140), a filling layer (160) and at least one core wire (170). The core wire (170) is arranged inside the inner sheath (140), and the filling layer (160) is used to fill the gap between the core wire (170) layer and the inner sheath (140); the buffer layer (130) is arranged between the inner sheath (140) and the outer sheath (110); Wherein, the buffer layer (130) is provided with a sensor assembly, and the sensor assembly is used to receive at least one of an external pressure signal and an acoustic wave signal, so that the buffer layer (130) can expand according to the pressure signal and / or the acoustic wave signal to protect the cable (100).

2. The cable wire according to claim 1, wherein The sensor assembly includes a terminal receiver (132) and a controller. The terminal receiver (132) is arranged in the buffer layer (130), and the controller is electrically connected to the terminal receiver (132); the buffer layer (130) further includes a gas interface (131) and a compressed air generator. The gas interface (131) is arranged in the buffer layer (130), and the compressed air generator is communicated with the gas interface (131); The terminal receiver (132) is used to detect the pressure signal and / or the acoustic wave signal outside the cable (100). The controller is electrically connected to the compressed air generator, and the controller is used to control the compressed air generator to introduce gas into the gas interface (131) according to the pressure signal and / or the acoustic wave signal.

3. The cable according to claim 2, characterized in that, The controller is used to calculate the expected bearing weight according to the pressure signal and / or the acoustic wave signal, send a start signal to the compressed air generator, and control the compressed air generator to introduce gas in a corresponding proportion into the gas interface (131).

4. The cable according to claim 2 or 3, characterized in that, The buffer layer (130) is further provided with a cooling device. The cooling device is arranged between the compressed air generator and the gas interface (131), and the cooling device is used to cool the compressed gas manufactured by the compressed air generator.

5. The cable according to claim 2, characterized in that, The cable (100) further includes a protective layer (120). The protective layer (120) is arranged between the buffer layer (130) and the outer sheath (110), and the protective layer (120) is used to protect the buffer layer (130) and the sensor assembly.

6. The cable according to claim 5, characterized in that, The protective layer (120) is made of braided high-strength aluminum alloy.

7. The cable according to any one of claims 1-6, characterized in that, The core wire (170) includes a conductor (172) and an insulating layer (171). The insulating layer (171) is used to wrap the conductor (172), and the outside of the insulating layer (171) is in contact with the filling layer (160).

8. The cable wire according to claim 7, wherein The insulating layer (171) is made of cross-linked polyethylene material, and the filling layer (160) is made of polypropylene material.

9. The cable wire according to any one of claims 1-6, characterized in that, The cable (100) further includes a tape (150). The tape (150) is arranged between the core wire (170) layer and the inner sheath (140), and the tape (150) is used to tightly wrap the core wire (170) layer and the filling layer (160).

10. The cable according to claim 9, characterized in that, The inner sheath (140) and the outer sheath (110) are made of polyvinyl chloride material.

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