Crosslinked polyethylene sheathed insulated frequency varying cable

Abstract

The application discloses a kind of crosslinked polyethylene sheath insulated variable frequency cable, it is related to cable technical field, including cable assembly, temperature sensing mechanism is penetrated in the inside center portion of the cable assembly, the side wall of the cable assembly is equidistantly distributed with several first heat dissipation components along the circumferential direction, second heat dissipation component is equipped between two adjacent first heat dissipation components.The application is distributed in the inside center portion position of filling layer by temperature sensor, is annularly distributed in the inside of filling layer by wire conductor, so that temperature sensor is arranged in the center portion between wire conductor, the temperature generated by wire conductor can be monitored by temperature sensor, when temperature is too high, data can be transmitted to controller by sensing circuit, and the work of wire conductor is suspended by controller analysis control, so that temperature is reduced, avoid the situation that circuit cannot be normally used when circuit fault or overload occurs due to excessive load.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of cables, in particular to a cross-linked polyethylene sheath insulated variable-frequency cable. BACKGROUND

[0002] With the continuous improvement of industrial automation, variable-frequency devices are widely used in various fields. As a key component for connecting variable-frequency devices, the performance of a variable-frequency cable directly affects the stability and reliability of the entire system.

[0003] The existing variable-frequency cable is prone to high temperature during high-load operation. When working in a high-temperature environment for a long time, the use stability is reduced, and circuit failure occurs. In view of the above problems, a cross-linked polyethylene sheath insulated variable-frequency cable is provided. SUMMARY

[0004] The purpose of the present application is to provide a cross-linked polyethylene sheath insulated variable-frequency cable to solve the problem of the existing technology that the variable-frequency cable is prone to high temperature during high-load operation. When working in a high-temperature environment for a long time, the use stability is reduced, and circuit failure occurs.

[0005] To achieve the above purpose, the present application provides the following technical scheme: a cross-linked polyethylene sheath insulated variable-frequency cable, comprising a cable assembly, a plurality of temperature sensing mechanisms are arranged on the inner side center of the cable assembly along the axial direction, a plurality of first heat dissipation assemblies are equidistantly distributed along the circumferential direction of the side wall of the cable assembly, and a second heat dissipation assembly is arranged between adjacent two first heat dissipation assemblies; wherein

[0006] The cable assembly comprises a plurality of wire conductors for signal transmission;

[0007] The temperature sensing mechanism comprises a plurality of temperature sensors, the axis of the temperature sensor penetrates the sensing line, an installation sleeve is arranged on the outer side of the temperature sensor, and the temperature sensor is arranged at the central part between the plurality of wire conductors to monitor the temperature of different positions of the cable assembly in real time;

[0008] The first heat dissipation assembly comprises a heat dissipation layer, a plurality of heat dissipation grooves are uniformly arranged in the heat dissipation layer along the circumferential direction, and a plurality of heat dissipation fins are uniformly distributed in the heat dissipation grooves; the second heat dissipation assembly comprises a heat dissipation pipe, and a heat conduction plate is arranged in the heat dissipation pipe to form a gap heat dissipation.

[0009] Preferably, an outer protective component is arranged on the outer side of the cable assembly, the outer protective component comprises a plurality of outer protective connecting pieces arranged at intervals, and a spring protective piece is arranged between adjacent two outer protective connecting pieces.

[0010] Preferably, the outer protection connecting piece is provided with connecting notches on both sides, and the spring protection piece is embedded into the connecting notches.

[0011] Preferably, the heat-conducting plate is uniformly provided with a plurality of ventilation grooves, and the ventilation grooves are communicated with the inner space of the heat-dissipating pipe.

[0012] Preferably, the heat-dissipating pipe is provided with a plurality of through holes in the axial direction, and the through holes are communicated with the ventilation grooves in the inner space of the heat-dissipating pipe.

[0013] Preferably, the heat-dissipating pipe is provided with a plurality of through holes in the axial direction, and the through holes are communicated with the ventilation grooves in the inner space of the heat-dissipating pipe.

[0014] Preferably, the temperature sensor is symmetrically provided with a butt joint block on the side wall, a plurality of first friction strips are uniformly distributed on the upper and lower surfaces of the butt joint block, a slide mounting sleeve is slidably connected to the outer side of the butt joint block, a plurality of second friction strips are uniformly distributed in the inner space of the slide mounting sleeve, and the slide mounting sleeve is symmetrically provided with an arc-shaped guide plate at one end with an opening.

[0015] Preferably, the outer wall of the mounting sleeve is uniformly distributed with a plurality of limiting ring bodies in the circumferential direction, and the outer wall of the mounting sleeve is uniformly distributed with a plurality of limiting guide strips in the linear direction, the limiting guide strips and the limiting ring bodies are cross-connected, and the outer side of the limiting guide strip is slidably connected with a limiting notch.

[0016] Preferably, the outer side of the wire conductor is provided with a first insulating layer, the outer side of the first insulating layer is provided with a filling layer, a plurality of grounding wires are arranged in the inner space of the filling layer, the outer side of the grounding wire is provided with a second insulating layer, the second insulating layer penetrates the inner side of the filling layer, and the second insulating layer and the first insulating layer are staggered.

[0017] Preferably, the outer side of the filling layer is provided with a wrapping tape, the outer side of the wrapping tape is provided with a shielding layer, the outer side of the shielding layer is connected with the inner side of a heat-dissipating layer, the outer side of the heat-dissipating layer is provided with an armored layer, and the outer side of the armored layer is provided with an outer sheath.

[0018] Compared with the prior art, the present application has the following advantages:

[0019] (I) In the application, the temperature sensor is distributed in the middle part of the inner side of the filling layer, and the electric wire conductor is distributed in the form of a ring on the inner side of the filling layer, so that the temperature sensor is arranged in the center between the electric wire conductors, and the temperature generated by the electric wire conductor can be monitored by the temperature sensor. When the temperature is too high, the data can be transmitted to the controller through the sensing circuit, and the controller can be analyzed and controlled to suspend the work of the electric wire conductor, so that the temperature can be reduced, and the situation that the circuit cannot be normally used due to circuit failure or overload due to excessive load is avoided. The abutting block is arranged on the side wall of the temperature sensor, the abutting block is slidably connected with the sliding sleeve, the first friction strip distributed on the outer wall of the abutting block and the second friction strip in the sliding sleeve increase the friction force to form a stable limiting action, thereby ensuring stable installation effect, and the outer side of the temperature sensor is provided with a mounting sleeve to provide stable supporting effect. The outer side of the mounting sleeve is provided with a limiting guide strip and a limiting ring body, which can be tightly installed in the inside of the filling layer, and the sliding connection of the abutting block and the sliding sleeve forms a stable segmented installation, thereby facilitating temperature detection at multiple different positions, and effectively improving the comprehensiveness of monitoring.

[0020] (II) In the application, the heat dissipation layer is arranged outside the cable, a plurality of heat dissipation grooves are uniformly formed on the heat dissipation layer, a plurality of heat dissipation fins are arranged in the heat dissipation grooves, and a plurality of heat dissipation holes are uniformly formed on the heat dissipation fins, thereby facilitating the effects of heat conduction and heat dissipation, effectively improving the heat dissipation effect, and the heat dissipation pipe is arranged on the heat dissipation layer, and the heat dissipation pipe is provided with a heat conduction plate inside, a through hole is formed on the heat dissipation pipe, and a ventilation groove is formed on the heat conduction plate, thereby further providing space gaps to form a high-efficiency heat dissipation effect, and the heat dissipation fins are made of copper material and have excellent heat conduction performance, high heat conduction coefficient, can quickly conduct the heat generated during the operation of the cable, reduce the temperature of the conductor, and the heat dissipation pipe and the heat conduction plate are made of graphene material, thereby significantly improving the heat conduction capacity of the material, realizing efficient heat dissipation of the cable, and improving the carrying capacity and service life of the cable.

[0021] (III) In the application, the outer protection connecting piece is fixedly arranged on the outer wall of the cable assembly, and a connecting groove is formed in the side surface of the outer protection connecting piece, which can provide a space for embedding installation, thereby facilitating the embedding connection of the two ends of the spring protection piece in the connecting groove, and facilitating the wrapping of the spring protection piece outside to provide effective protection effect and prevent external scratching from damaging the cable, thereby prolonging the service life and ensuring the stability of the cable during use. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a perspective view of a cross-linked polyethylene sheath insulated variable frequency cable.

[0023] Figure 2 Another angle structural schematic view of the crosslinked polyethylene sheath insulated variable frequency cable of the present application;

[0024] Figure 3 An internal section structural schematic view of the crosslinked polyethylene sheath insulated variable frequency cable of the present application;

[0025] Figure 4 An enlarged structural schematic view of A in the present application Figure 3

[0026] Figure 5 An internal section structural schematic view of the crosslinked polyethylene sheath insulated variable frequency cable of the present application;

[0027] Figure 6 An enlarged structural schematic view of B in the present application Figure 5

[0028] An exploded structural schematic view of the crosslinked polyethylene sheath insulated variable frequency cable of the present application; Figure 7

[0029] An enlarged structural schematic view of C in the present application Figure 8 Figure 7

[0030] In the figure:

[0031] 1, cable assembly; 101, wire conductor; 102, first insulation layer; 103, filling layer; 104, ground wire; 105, second insulation layer; 106, tape; 107, shielding layer; 108, armor layer; 109, outer sheath; 2, temperature sensing mechanism; 201, temperature sensor; 202, butt block; 203, first friction strip; 204, sliding sleeve; 205, second friction strip; 206, arc-shaped guide plate; 207, sensing circuit; 208, mounting sleeve; 209, limiting guide strip; 210, limiting ring body; 211, limiting notch; 3, first heat dissipation assembly; 301, heat dissipation layer; 302, heat dissipation notch; 303, heat dissipation fin; 304, heat dissipation hole; 4, second heat dissipation assembly; 401, heat dissipation pipe; 402, heat conduction plate; 403, ventilation groove; 404, through hole; 5, outer protection assembly; 501, outer protection connecting piece; 502, connecting notch; 503, spring protection piece. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.​​​

[0033] Example 1: As Figures 1-8 As shown, the present invention provides a technical solution: a cross-linked polyethylene sheathed insulated frequency conversion cable, including a cable assembly 1, a temperature sensing mechanism 2 passing through the inner center of the cable assembly 1, a plurality of first heat dissipation components 3 evenly distributed along the circumferential direction on the sidewall of the cable assembly 1, a second heat dissipation component 4 provided between two adjacent first heat dissipation components 3, and the second heat dissipation component 4 being located inside the cable assembly 1.

[0034] Cable assembly 1 includes a plurality of wire conductors 101 for transmitting signals;

[0035] Please refer to Figure 6 The temperature sensing mechanism 2 includes several temperature sensors 201. A sensing circuit 207 passes through the inner side of each temperature sensor 201, and a mounting sleeve 208 is provided on the outer side of each temperature sensor 201. The temperature sensor 201 is located at the center between multiple cable conductors 101. Specifically, the connecting lines of the axes of the multiple cable conductors 101 form a triangle, and the temperature sensor 201 is located at the center of the triangle, between the multiple cable conductors 101. Specifically, the temperature sensor 201 is used to monitor the temperature in real time at different positions along the length of the cable assembly 1. Symmetrical docking blocks 202 are fixed to the outer side of the temperature sensor 201, and the upper and lower surfaces of the docking blocks 202 are uniform. A plurality of first friction strips 203 are distributed, and a sliding sleeve 204 is slidably connected to the outer side of the mating block 202. A plurality of second friction strips 205 are evenly distributed along the length direction inside the sliding sleeve 204. An arc-shaped guide plate 206 is symmetrically arranged at one end of the sliding sleeve 204 with an opening. A plurality of limiting rings 210 are evenly distributed along the circumferential direction on the outer wall of the mounting sleeve 208. A plurality of limiting guide strips 209 are evenly distributed in a straight line on the outer wall of the mounting sleeve 208. The limiting guide strips 209 are cross-connected with the limiting rings 210. The limiting guide strips 209 can be used to cooperate with the limiting slot 211, so that the mounting sleeve 208 can be slidably connected to the limiting slot 211 through the limiting guide strips 209.

[0036] The first heat dissipation component 3 includes a heat dissipation layer 301. A plurality of heat dissipation slots 302 are evenly distributed along the circumferential direction inside the heat dissipation layer 301. A plurality of heat dissipation fins 303 are evenly distributed inside the heat dissipation slots 302. Heat dissipation holes 304 are evenly distributed through the sidewalls of the heat dissipation fins 303, and adjacent heat dissipation holes 304 are connected.

[0037] Please refer to Figure 4The second heat dissipation assembly 4 comprises a heat dissipation pipe 401, and heat conduction plates 402 are arranged in the heat dissipation pipe 401 in a transverse and vertical intersecting manner. Each heat conduction plate 402 forms a cross shape, and the center of the cross shape, i.e., the intersection of the heat conduction plates 402, is the axis of the heat dissipation pipe 401. The heat conduction plates 402 are used to form gaps for heat dissipation. A plurality of ventilation grooves 403 are uniformly arranged on each heat conduction plate 402, and the ventilation grooves 403 are connected to the gaps formed by the heat conduction plates 402. Further, a plurality of through holes 404 are arranged on the heat dissipation pipe 401, and the through holes 404 are connected to the ventilation grooves 403 in the heat dissipation pipe 401.

[0038] In the embodiment, the temperature sensor 201 is arranged in the middle of the inner side of the filling layer 103, and the wire conductor 101 is arranged in a ring shape on the inner side of the filling layer 103, so that the temperature sensor 201 is arranged at the center of the triangle formed by the center lines of the wire conductor 101. The temperature sensor 201 can monitor the temperature generated by the wire conductor 101. When the temperature is too high, the data can be transmitted to the controller through the sensing circuit 207, and the controller can be analyzed and controlled to suspend the work of the wire conductor 101, so that the temperature of the wire conductor 101 is reduced, and the situation that the circuit cannot be normally used due to circuit failure or overload caused by too high load is avoided.

[0039] Further, the butt joint block 202 is arranged on the side wall of the temperature sensor 201, the butt joint block 202 and the sliding sleeve 204 are connected in a sliding manner, the first friction strip 203 distributed on the outer wall of the butt joint block 202 and the second friction strip 205 in the sliding sleeve 204 increase the friction force to form a stable limiting action, thereby ensuring stable installation. The outer side of the temperature sensor 201 is provided with the mounting sleeve 208 to provide stable support. The outer side of the mounting sleeve 208 is provided with the limiting guide strip 209 and the limiting ring body 210 to tightly install the temperature sensor 201 in the filling layer 103, and the sliding connection of the butt joint block 202 and the sliding sleeve 204 forms stable segmented installation, thereby facilitating temperature detection at multiple different positions and effectively improving the comprehensiveness of monitoring.

[0040] The heat dissipation layer 301 is arranged outside the cable, a plurality of heat dissipation grooves 302 are uniformly arranged on the heat dissipation layer 301, a plurality of heat dissipation fins 303 are arranged in the heat dissipation grooves 302, and a plurality of heat dissipation holes 304 are uniformly arranged on the heat dissipation fins 303, thereby facilitating heat conduction and heat dissipation, effectively improving the heat dissipation effect, the heat dissipation pipe 401 is arranged on the heat dissipation layer 301, and the heat dissipation pipe 401 is internally provided with a heat conduction plate 402, the heat dissipation pipe 401 is provided with a through hole 404, and the heat conduction plate 402 is provided with a ventilation groove 403, thereby facilitating the provision of a space gap, forming a high-efficiency heat dissipation effect, and the heat dissipation fins 303 are made of copper material and have excellent heat conduction performance, a high heat conduction coefficient, and can rapidly conduct heat generated by the cable during operation, thereby reducing the temperature of the conductor, the heat dissipation pipe 401 and the heat conduction plate 402 are made of graphene material and are fused together, thereby significantly improving the heat conduction capacity of the material, achieving high-efficiency heat dissipation of the cable, and improving the current-carrying capacity and service life of the cable.

[0041] Embodiment 2: As shown in the figure, the outer wall of the cable assembly 1 is provided with an outer protection assembly 5, the outer protection assembly 5 comprises a plurality of outer protection connecting pieces 501, a spring protection piece 503 is arranged between adjacent two outer protection connecting pieces 501, and a connecting groove 502 is arranged on both sides of the outer protection connecting piece 501. Figures 1-2

[0042] In this embodiment, the outer protection connecting piece 501 is fixedly arranged on the outer wall of the cable assembly 1, and the connecting groove 502 is arranged on the side surface of the outer protection connecting piece 501, so as to provide a space for embedded installation, thereby facilitating the embedding of the two ends of the spring protection piece 503 in the connecting groove 502, and facilitating the wrapping of the spring protection piece 503 on the outside to provide effective protection, thereby preventing the cable from being damaged due to external scratching, thereby prolonging the service life and ensuring the stability of the cable during use.

[0043] Embodiment 3: As shown in the figure, the outer side of the wire conductor 101 is provided with a first insulation layer 102, the outer side of the first insulation layer 102 is provided with a filling layer 103, a plurality of grounding wires 104 are arranged in the filling layer 103, the outer side of the grounding wire 104 is provided with a second insulation layer 105, the second insulation layer 105 penetrates the inner side of the filling layer 103, the outer side of the filling layer 103 is provided with a wrapping tape 106, the outer side of the wrapping tape 106 is provided with a shielding layer 107, the outer side of the shielding layer 107 is connected to the inner side of the heat dissipation layer 301, the outer side of the heat dissipation layer 301 is provided with an armor layer 108, and the outer side of the armor layer 108 is provided with an outer sheath 109. Figures 1-4

[0044] ​​In this embodiment, the first insulating layer 102 mainly serves the function of electrical insulation, can prevent current leakage, prevent short circuit between different cores, ensure that the current in the cable is transmitted according to the intended path, and can play the insulating function stably in different temperature environments by virtue of its excellent heat resistance, cold resistance, insulation and chemical stability, thereby improving the overall insulation level and reliability of the cable. The filling layer 103 is used to fill the gap between the cores inside the cable, so that the cable structure is more compact and stable, the cores inside the cable are prevented from shaking, the flexibility and mechanical properties of the cable are enhanced, and the polypropylene filling rope can play a supporting and buffering role, prevent the cores from being damaged due to external pressure, and at the same time help the cable to maintain the structural integrity during bending, stretching and other operations. When the cable or the electrical equipment connected thereto is damaged, causing the live part to accidentally contact the conductive part such as the metal shell, the grounding wire 104 can provide a low-resistance path for the fault current, so that it quickly flows into the ground. The second insulating layer 105 facilitates the effect of providing insulation protection for the grounding wire 104, thereby improving the service life. The wrapping tape 106 can bundle and fix the internal structure of the cable, so that the layers are tightly combined, preventing the cable from loosening during production, transportation and use. At the same time, the wrapping tape can also play a certain buffering and protection role, reducing the direct impact of the outside on the internal cores and insulating layers, and to a certain extent, it can assist in shielding electromagnetic interference and improve the anti-interference ability of the cable. The shielding layer 107 mainly shields external electromagnetic interference, prevents external electromagnetic signals from interfering with the transmission of electrical signals inside the cable, and ensures the stability and accuracy of signal transmission. In addition, the shielding layer can also prevent the leakage of electromagnetic signals generated inside the cable, avoiding interference with surrounding electronic equipment, and is suitable for cable applications in strong electromagnetic interference environments. The armor layer 108 has high mechanical strength, which can enhance the compression resistance, tensile resistance, bending resistance and impact resistance of the cable, and protect the internal structure of the cable from mechanical damage, such as being crushed and scratched during cable laying. For cables that need to be buried, threaded or used in harsh environments, the armor layer 108 can effectively improve the service life and safety of the cable. Common armored materials include steel belts and steel wires. The outer sheath 109 is the outermost protective structure of the cable, which can protect the internal structure of the cable from environmental factors such as moisture, chemicals, ultraviolet rays and microorganisms. The outer sheath 109 also has wear resistance, aging resistance and other properties, which can improve the weather resistance and service life of the cable, so that it can adapt to various complex working environments, such as wetness, acid and alkali corrosion, outdoor exposure and the like.

[0045] In the application, the cross-linked polyethylene sheath insulated variable frequency cable, when in use, firstly, the first insulation layer 102 mainly plays the role of electrical insulation, can prevent current leakage, prevent short circuit between different cores, ensure that the current in the cable is transmitted according to the intended path, and can rely on the excellent heat resistance, cold resistance, insulation and chemical stability to stably play the insulation effect in different temperature environments, and improve the overall insulation level and reliability of the cable. The filling layer 103 is used to fill the gap between the cores inside the cable, so that the cable structure is more compact and stable, avoids the shaking of the cores inside the cable, enhances the flexibility and mechanical properties of the cable, and adopts a polypropylene filling rope, which can play a supporting and buffering role, prevent the cores from being damaged due to external pressure, and at the same time, help the cable to maintain the structural integrity during bending, stretching and other operations. When the cable or the electrical equipment connected thereto is damaged, causing the live part to accidentally contact the conductive part such as the metal shell, the grounding wire 104 can provide a low-resistance path for the fault current, so that it quickly flows into the ground. The second insulation layer 105 facilitates the insulation protection effect of the grounding wire 104, and improves the service life. The wrapping tape 106 can bundle and fix the internal structure of the cable, so that the layers are tightly combined, preventing the cable from loosening during production, transportation and use. At the same time, the wrapping tape can also play a certain buffering and protection role, reduce the direct impact of the outside on the internal cores and insulation layers, and to a certain extent, can assist in shielding electromagnetic interference, improving the anti-interference ability of the cable. The shielding layer 107 mainly shields external electromagnetic interference, prevents external electromagnetic signals from interfering with the transmission of electrical signals inside the cable, and ensures the stability and accuracy of signal transmission. In addition, the shielding layer can also prevent the leakage of electromagnetic signals generated inside the cable, avoiding interference with surrounding electronic equipment, and is suitable for cable applications in strong electromagnetic interference environments. The armor layer 108 has high mechanical strength, which can enhance the compression resistance, tensile resistance, bending resistance and impact resistance of the cable, and protect the internal structure of the cable from mechanical damage, such as being crushed and scratched during cable laying. For cables that need to be directly buried, threaded or used in harsh environments, the armor layer 108 can effectively improve the service life and safety of the cable. Common armored materials include steel belts, steel wires, etc. The outer sheath 109 is the outermost protective structure of the cable, which can protect the internal structure of the cable from environmental factors such as moisture, chemicals, ultraviolet rays and microorganisms. The outer sheath 109 also has wear resistance, aging resistance and other properties, which can improve the weather resistance and service life of the cable, so that it can adapt to various complex working environments, such as humid, acid and alkali corrosion, outdoor exposure and other scenes.

[0046] The temperature sensor 201 is distributed in the middle position of the inner side of the filling layer 103, and the electric wire conductor 101 is distributed in a ring shape on the inner side of the filling layer 103, that is, the temperature sensor 201 is arranged at the center part between the electric wire conductors 101, so that the temperature generated by the electric wire conductor 101 can be monitored by the temperature sensor 201, and when the temperature is too high, the data can be transmitted to the controller through the sensing line 207, and the controller can be analyzed and controlled to suspend the work of the electric wire conductor 101, so that the temperature is reduced, and the situation that the circuit cannot be normally used due to circuit failure or overload caused by too high load is avoided. The butt joint block 202 is arranged on the side wall of the temperature sensor 201, the butt joint block 202 and the sliding sleeve 204 are connected in sliding mode, the first friction strip 203 distributed on the outer wall of the butt joint block 202 and the second friction strip 205 inside the sliding sleeve 204 increase the friction force to form a stable limiting action, thereby ensuring stable installation effect, and the outer side of the temperature sensor 201 is provided with the mounting sleeve 208 to provide stable supporting effect, and the outer side of the mounting sleeve 208 is provided with the limiting guide strip 209 and the limiting ring body 210 to tightly install the temperature sensor 201 in the inside of the filling layer 103, and cooperate with the sliding connection of the butt joint block 202 and the sliding sleeve 204 to form stable segmented installation, thereby being beneficial to temperature detection of multiple different positions, and effectively improving the comprehensiveness of monitoring.

[0047] The heat dissipation layer 301 is arranged outside the cable, a plurality of heat dissipation grooves 302 are uniformly arranged on the heat dissipation layer 301, a plurality of heat dissipation fins 303 are arranged in the heat dissipation grooves 302, and a plurality of heat dissipation holes 304 are uniformly arranged on the heat dissipation fins 303, thereby being beneficial to providing the effects of heat conduction and heat dissipation, effectively improving the heat dissipation effect, the heat dissipation pipe 401 is arranged on the heat dissipation layer 301, and the heat dissipation pipe 401 is provided with the heat conduction plate 402 inside, the through hole 404 is arranged on the heat dissipation pipe 401, and the ventilation groove 403 is arranged on the heat conduction plate 402, thereby being beneficial to further providing space gaps, forming high-efficiency heat dissipation effect, and the heat dissipation fin 303 is made of copper material and has excellent heat conduction performance, high heat conduction coefficient, can rapidly conduct the heat generated by the cable during operation, reduce the conductor temperature, and the heat dissipation pipe 401 and the heat conduction plate 402 are made of graphene material and are fused, thereby significantly improving the heat conduction capacity of the material, realizing high-efficiency heat dissipation of the cable, and improving the carrying capacity and service life of the cable.

[0048] The heat dissipation layer 301 is arranged outside the cable, a plurality of heat dissipation grooves 302 are uniformly arranged on the heat dissipation layer 301, a plurality of heat dissipation fins 303 are arranged in the heat dissipation grooves 302, and a plurality of heat dissipation holes 304 are uniformly arranged on the heat dissipation fins 303, thereby facilitating heat conduction and dissipation, effectively improving the heat dissipation effect, the heat dissipation pipe 401 is arranged on the heat dissipation layer 301, and the heat dissipation pipe 401 is internally provided with a heat conduction plate 402, a through hole 404 is arranged on the heat dissipation pipe 401, and a ventilation groove 403 is arranged on the heat conduction plate 402, thereby facilitating further space gaps, forming a high-efficiency heat dissipation effect, the heat dissipation fins 303 are made of copper material and have excellent heat conduction performance, the heat conduction coefficient is high, the heat generated by the cable during operation can be rapidly conducted out, the conductor temperature is reduced, the heat dissipation pipe 401 and the heat conduction plate 402 are made of graphene material and are fused, thereby significantly improving the heat conduction capacity of the material, realizing high-efficiency heat dissipation of the cable, and improving the current-carrying capacity and service life of the cable.

[0049] Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can modify the technical solutions recorded in the foregoing embodiments or make equivalent replacements to some of the technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A crosslinked polyethylene sheathed insulated frequency varying cable comprising a cable assembly (1) characterised in that: The inner side center part of the cable assembly (1) is provided with a plurality of temperature sensing mechanisms (2) in the axial direction, the side wall of the cable assembly (1) is equidistantly distributed with a plurality of first heat dissipation assemblies (3) in the circumferential direction, and a second heat dissipation assembly (4) is arranged between two adjacent first heat dissipation assemblies (3); wherein The cable assembly (1) comprises a plurality of wire conductors (101) for transmitting signals; The temperature sensing mechanism (2) comprises a plurality of temperature sensors (201), the axis of the temperature sensor (201) penetrates the sensing line (207), the outer side of the temperature sensor (201) is provided with a mounting sleeve (208), and the temperature sensor (201) is arranged at the center part between the plurality of wire conductors (101), for monitoring the temperature of different positions of the cable assembly (1) in real time; The first heat dissipation assembly (3) comprises a heat dissipation layer (301), a plurality of heat dissipation grooves (302) are uniformly arranged in the heat dissipation layer (301) in the circumferential direction, and a plurality of heat dissipation fins (303) are uniformly distributed in the heat dissipation grooves (302); the second heat dissipation assembly (4) comprises a heat dissipation pipe (401), and a heat conduction plate (402) is arranged in the heat dissipation pipe (401) for forming a gap heat dissipation in the air; The side wall of the temperature sensor (201) is symmetrically provided with a butt joint block (202), a plurality of first friction strips (203) are uniformly distributed on the upper and lower surfaces of the butt joint block (202), the outer side of the butt joint block (202) is slidably connected with a sliding sleeve (204), a plurality of second friction strips (205) are uniformly distributed in the sliding sleeve (204), and the sliding sleeve (204) is symmetrically provided with an arc-shaped guide plate (206) at one end with an opening; The outer wall of the mounting sleeve (208) is uniformly distributed with a plurality of limiting ring bodies (210) in the circumferential direction, the outer wall of the mounting sleeve (208) is uniformly distributed with a plurality of limiting guide strips (209) in the linear direction, the limiting guide strips (209) and the limiting ring bodies (210) are cross-connected, and the outer side of the limiting guide strips (209) is slidably connected with a limiting groove (211); By distributing the temperature sensor (201) in the inner side middle part of the filling layer (103) and arranging the wire conductors (101) in a ring shape in the inner side of the filling layer (103), the temperature sensor (201) is arranged at the center of the triangle formed by the center line of the wire conductors (101), and the temperature sensor (201) can monitor the temperature generated by the wire conductors (101). By setting the butt joint block (202) on the side wall of the temperature sensor (201), using the sliding connection between the butt joint block (202) and the sliding sleeve (204), and increasing the friction force by the first friction strips (203) distributed on the outer wall of the butt joint block (202) and the second friction strips (205) inside the sliding sleeve (204) to form a stable limiting effect, the stable installation is ensured, and the outside of the temperature sensor (201) is provided with the mounting sleeve (208) to provide a stable supporting effect, the outside of the mounting sleeve (208) is provided with the limiting guide strip (209) and the limiting ring body (210) to enable it to be tightly installed inside the filling layer (103), and the sliding connection of the butt joint block (202) and the sliding sleeve (204) forms a stable segmented installation, thereby facilitating temperature detection at multiple different positions and effectively improving the comprehensiveness of monitoring.

2. The crosslinked polyethylene sheath insulated frequency varying cable according to claim 1, characterized in that: The outer side of the cable assembly (1) is provided with an outer protection assembly (5), and the outer protection assembly (5) comprises a plurality of spaced outer protection connecting pieces (501), and spring protection pieces (503) are arranged between adjacent two outer protection connecting pieces (501).

3. The crosslinked polyethylene sheath insulated frequency varying cable according to claim 2, characterized in that: The outer side of the outer protection connecting piece (501) is provided with a connecting slot (502), and the both ends of the spring protection piece (503) are embedded in the connecting slot (502).

4. The crosslinked polyethylene sheath insulated frequency varying cable of claim 1, wherein: A plurality of ventilation grooves (403) are uniformly arranged on the heat conduction plate (402), and the ventilation grooves (403) are in communication with the inner space of the heat dissipation pipe (401).

5. The crosslinked polyethylene sheath insulated frequency varying cable of claim 4, wherein: A plurality of through holes (404) are arranged on the heat dissipation pipe (401) in the axial direction, and the through holes (404) are in communication with the ventilation grooves (403) in the heat dissipation pipe (401).

6. The crosslinked polyethylene sheath insulated frequency varying cable of claim 1, wherein: A plurality of heat dissipation holes (304) are arranged on each of the heat dissipation fins (303), and each of the heat dissipation holes (304) between adjacent heat dissipation fins (303) is in communication.

7. The crosslinked polyethylene sheath insulated frequency varying cable of claim 1, wherein: The outer side of the wire conductor (101) is provided with a first insulation layer (102), the outer side of the first insulation layer (102) is provided with a filling layer (103), the inside of the filling layer (103) is provided with a plurality of grounding wires (104), the outer side of the grounding wire (104) is provided with a second insulation layer (105), the second insulation layer (105) penetrates the inside of the filling layer (103), and the second insulation layer (105) and the first insulation layer (102) are distributed in an interlaced manner.

8. The crosslinked polyethylene sheath insulated frequency varying cable of claim 7, wherein: The outer side of the filling layer (103) is provided with a wrapping tape (106), the outer side of the wrapping tape (106) is provided with a shielding layer (107), the outer side of the shielding layer (107) is connected with the inner side of the heat dissipation layer (301), the outer side of the heat dissipation layer (301) is provided with an armor layer (108), and the outer side of the armor layer (108) is provided with an outer protective sleeve (109).

Images