Low-voltage power supply cable

Abstract

The invention relates to the technical field of cables, and provides a low-voltage power supply cable which comprises a plurality of conductive cables, each conductive cable comprises a plurality of stranded conductors, and each stranded conductor is coated with an insulating layer; the plurality of insulating layers are arranged on the inner side of the inner lining layer, the plurality of stranded conductors are all arranged inside the inner lining layer, the space between the inner lining layer and the plurality of insulating layers is filled with a filling layer, the outer part of the inner lining layer is coated with a sheath layer, the end part of each sheath layer is slidably sleeved with the butt-joint cylinder, the stringing assembly is arranged on the butt-joint cylinder, and the heat dissipation assembly is arranged on the inner lining layer. A conductive frame is arranged between every two opposite butt joint cylinders, a conductive assembly is installed on each conductive frame, and a heat dissipation assembly is installed on each conductive assembly. Through the above technical scheme, the problems that in the prior art, due to the fact that high current density is prone to occurring at the butt joint position of two cables, the local temperature of a contact point rises, and the heat dissipation effect is poor are solved. And a gap is generated between the two cables, so that the current transmission performance is influenced.

Description

Technical Field

[0001] The invention relates to the technical field of cables, and in particular to a low-voltage power cable. Background Art

[0002] Cable is a wire used for power transmission and distribution. It consists of one or more insulated conductors covered with a layer of protective material. Cables are usually used in various application scenarios of indoor and outdoor power systems, such as household appliances, lighting equipment, communication facilities, etc. According to the purpose and voltage level, cables can be divided into high-voltage cables, medium-voltage cables and low-voltage cables to meet the needs of different application scenarios.

[0003] Among them, low-voltage power cable is a cable suitable for transmitting and distributing low-voltage electric energy. It is mainly used to connect power supply equipment and power-consuming equipment. It is usually used at a voltage level of 1 kVA or lower. This cable is usually used as part of a power transmission and distribution system in household, commercial and industrial purposes.

[0004] In order to simplify the wiring process, reduce line redundancy, and facilitate management and maintenance, multiple cables are generally connected together, and the reliability of the system is improved, the existing cable resources are fully utilized, and the cable cost is reduced. However, at the location where two cables are connected, relatively high current density and electric field concentration often occur, which increases the local temperature of the contact point. At the same time, the temperature of the external environment will also affect the temperature of the connection position, and local high temperature will accelerate cable aging and failure, affecting the normal operation of the cable. In order to ensure the safe and stable operation of the cable, the cable is generally wrapped with insulation material to avoid high temperature concentration at the cable connection point. However, if the conductor expands too much or too quickly, it will still cause damage to the connection, resulting in gaps between the cables due to expansion, which reduces the actual contact area of ​​the connection, which will increase the contact resistance, thereby affecting the current transmission performance between the cables. Summary of the invention

[0005] The present invention proposes a low-voltage power cable, which solves the problem in the prior art that due to the location where two cables are butted, relatively high current density and electric field concentration are prone to occur, causing the local temperature of the contact point to rise, resulting in a gap between the conductors of the two cables, thereby affecting the current transmission performance.

[0006] The technical solution of the present invention is as follows: A low-voltage power cable, comprising a plurality of conductive cables, each of which comprises a plurality of twisted conductors, each of which is coated with an insulating layer; the plurality of twisted conductors are arranged inside an inner lining layer, a filling layer is filled between the inner lining layer and the plurality of insulating layers, the inner lining layer is coated with a sheath layer, and further comprising: A butt joint sleeve, each end of the sheath layer is slidably sleeved with the butt joint sleeve; A fixing assembly, which is provided on each of the plurality of docking sleeves and is used to fix the position of the docking sleeves; A wiring assembly, which is installed on the butt-jointing barrel and is used to separate the plurality of twisted conductors; A connector assembly, each end of the stranded conductor is provided with the connector assembly; A conductive frame, which is disposed between every two oppositely positioned butt joints and is electrically connected to the connector assembly; Conductive components, each of the conductive racks is equipped with the conductive components for conducting electricity; A heat dissipation component is installed on each of the conductive components for heat dissipation.

[0007] On the basis of the above scheme, the fixing assembly comprises: A fixing ring, each of the butt joint sleeves is fixedly mounted with the fixing ring, and the inner side wall of the fixing ring is in sliding contact with the sheath layer; Fixing screws, each of the fixing rings is provided with a plurality of fixing screws with circumferential equiangular threads, and the bottom ends of the fixing screws abut against the sheath layer.

[0008] On the basis of the above scheme, the wiring assembly comprises: A mounting tube, each docking tube is provided with the mounting tube, the mounting tube and the docking tube are connected by threaded connection, and the threads of each two mounting tubes at opposite positions have opposite rotation directions; A wiring board, wherein each of the installation tubes is rotatably installed with the wiring board; Mounting holes, each of the wiring boards is provided with a plurality of mounting holes in a circular shape with equal angles, a plurality of the twisted conductors correspond to the plurality of mounting holes one by one, and the mounting holes are in sliding contact with the insulating layer.

[0009] Based on the above solution, the joint assembly includes: Conductive joints, each end of the stranded conductor is provided with the conductive joint, the two ends of the conductive joint are provided as crimping areas, and the middle part is provided as a conductive area; Conductive sheets, each of the conductive areas has a plurality of conductive sheets fixedly mounted at equal angles in a circular shape.

[0010] Based on the above solution, the conductive component includes: Installation grooves, each of the conductive frames has a plurality of installation grooves at both ends thereof in a circular shape and at equal angles, and the plurality of installation grooves correspond one to one with the plurality of twisted conductors; A docking groove, wherein each of the two opposite mounting grooves is provided with the docking groove; A conductive part is installed in each of the installation slots and is used to electrically connect two opposite twisted conductors.

[0011] On the basis of the above solution, the conductive part includes: A conductive cylinder, each of the docking slots is detachably mounted with the conductive cylinder, and a plurality of the conductive cylinders correspond one to one with a plurality of the conductive connectors; Conductive slide grooves, each of the conductive cylinders has a plurality of conductive slide grooves formed in a circular shape at equal angles, the plurality of conductive slide grooves correspond to the plurality of conductive sheets one by one, and the conductive sheets are slidably connected to the conductive slide grooves; A connecting conductor is fixedly installed in each installation groove, and two ends of the connecting conductor are respectively fixedly connected to two opposite conductive cylinders.

[0012] Based on the above solution, the heat dissipation component includes: A heat dissipation cylinder, the heat dissipation cylinder being detachably mounted on the outside of each conductive frame; An annular groove, the end of each mounting tube is provided with the annular groove; A protection part is installed between the annular grooves on each two opposite mounting tubes to protect the conductive frame.

[0013] On the basis of the above scheme, the protection part comprises: The outer shell has two outer shells installed symmetrically and detachably between the annular grooves on each two opposite mounting tubes; Connecting screws, the four corners of every two symmetrically arranged shells are connected by the connecting screws.

[0014] On the basis of the above scheme, it also includes an annular protrusion, each of the shells is provided with the annular protrusion, and the annular protrusion is adapted to the heat dissipation cylinder.

[0015] The working principle and beneficial effects of the present invention are: 1. In the present invention, the threads of two relatively positioned mounting barrels have opposite rotation directions, which improves the stability of docking and reduces the possibility of loosening between the threads during use. In addition, multiple twisted conductors in the corresponding conductive cables are respectively passed through the corresponding mounting holes, so that the insulating layer is in sliding contact with the mounting holes, thereby reducing the influence of electromagnetic interference on the connection position and improving the current transmission performance.

[0016] 2. In the present invention, after the conductive connector is inserted into the conductive cylinder, the conductive sheet on the conductive connector enters the conductive chute. When affected by high temperature, the twisted conductor expands, thereby pushing the corresponding conductive connector to slide in the conductive cylinder. At this time, relative sliding also occurs between the conductive chute and the conductive sheet, which does not affect normal current transmission. The conductive chute and the conductive sheet always maintain a sliding and tight state, thereby avoiding the impact on conductivity and avoiding the phenomenon of increased contact resistance due to a reduction in actual contact area.

[0017] 3. In the present invention, the two ends of the two matching shells are connected corresponding to the annular grooves, and the two shells are connected by setting the connecting screws. The annular grooves are set so that the shells and the two mounting cylinders form a whole, which improves the stability. In addition, due to the setting of the annular protrusions, the contact area with the air is increased, so that the high temperature transmitted by the heat dissipation cylinder can be dissipated more quickly, avoiding excessive concentration of temperature at the joint position, and improving the working stability.

[0018] 4. In the present invention, by setting up the fixing assembly and the wiring assembly, the speed of installing the conductive joint is improved, and the problem of electromagnetic interference between multiple twisted conductors is reduced. Through the cooperation of the joint assembly and the conductive assembly, not only can the stability of current transmission be maintained when subjected to high temperature, but also the heat can be quickly transferred away, and a certain gap is left, thereby improving the efficiency of installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of a three-dimensional structure in cross section in the present invention; Figure 3 It is a schematic diagram of the structure of the conductive cable in the present invention; Figure 4 It is a cross-sectional structural schematic diagram of the fixing assembly and the wiring assembly in the present invention; Figure 5 It is a cross-sectional structural diagram of the coordination of the wiring assembly and the protection part in the present invention; Figure 6 It is a structural schematic diagram of the joint assembly in the present invention; Figure 7 It is a cross-sectional structural schematic diagram of the matching of the conductive component and the connector component in the present invention; Figure 8 It is a schematic cross-sectional structural diagram of the conductive component in the present invention.

[0021] In the figure: 1. twisted conductor; 2. insulation layer; 3. lining layer; 4. filling layer; 5. sheath layer; 6. docking tube; 7. conductive frame; 8. fixing ring; 9. fixing screw; 10. mounting tube; 11. wire rack; 12. mounting hole; 13. conductive joint; 14. conductive sheet; 15. mounting groove; 16. docking groove; 17. conductive tube; 18. conductive slide groove; 19. connecting conductor; 20. heat dissipation tube; 21. annular groove; 22. outer shell; 23. connecting screw; 24. annular protrusion. DETAILED DESCRIPTION

[0022] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] like Figures 1 to 8 As shown, this embodiment proposes a low-voltage power supply cable, including multiple conductive cables, each of which includes multiple twisted conductors 1, and the multiple twisted conductors 1 are coated with an insulating layer 2 on the outside; the multiple twisted conductors 1 are arranged inside an inner lining layer 3, a filling layer 4 is filled between the inner lining layer 3 and the multiple insulating layers 2, and the inner lining layer 3 is coated with a sheath layer 5 on the outside, and also includes a docking sleeve 6, a fixing component, a wire rack component, a joint component, a conductive frame 7, a conductive component and a heat dissipation component, each end of each sheath layer 5 is slidably sleeved with a docking sleeve 6, and multiple docking sleeves 6 are provided with a fixing component for fixing the position of the docking sleeve 6, the fixing component includes a fixing ring 8 and a fixing screw 9, each docking sleeve 6 is fixedly installed with a fixing ring 8, the inner side wall of the fixing ring 8 is in sliding contact with the sheath layer 5, and each fixing ring 8 is provided with a plurality of fixing screws 9 in a circular equiangular thread, and the bottom end of the fixing screw 9 is in contact with the sheath layer 5.

[0024] It should be added that the twisted conductor 1 is the main part of the conductive cable, responsible for conducting electrical energy. The twisted conductor 1 is formed by twisting a plurality of insulated wires, has good softness and plasticity, and can adapt to external deformations such as bending and twisting. The insulating layer 2 is located outside the twisted conductor 1, and is used to isolate and protect the twisted conductor 1 from external electromagnetic interference and prevent current leakage. The lining layer 3 plays a role in strengthening the insulating layer 2 and improving the softness. The filling layer 4 is located between the lining layer 3 and the outer sheath layer 5, and is used to fill the gap between the two, and improve the overall softness and plasticity of the cable. The sheath layer 5 is located in the outermost layer, and is used to protect the cable from mechanical damage, chemical corrosion and other external factors. It should be noted that the material of the filling layer 4 can be rubber, silicone rubber or other soft materials, and the material of the sheath layer 5 can be rubber, polyurethane or other tough materials.

[0025] Specifically, when two conductive cables are connected together, the conductive cables are first stripped to expose the twisted conductor 1 and the insulating layer 2, and the end faces of the lining layer 3, the filling layer 4 and the sheath layer 5 are smoothed. At this time, the docking sleeves 6 are respectively installed on the opposite ends of the sheath layers 5 of the two conductive cables. At this time, the fixing ring 8 moves to the fixed position, and the fixing screws 9 are installed on the fixing ring 8 in turn, and then the fixing screws 9 are screwed in turn until the bottom of the fixing screws 9 abuts against the sheath layer 5, thereby fixing the relative position of the fixing ring 8 and the sheath layer 5, thereby fixing the position of the docking sleeve 6, and then installing the wire rack assembly on the corresponding docking sleeve 6, separating multiple twisted conductors 1 from the insulating layer 2, and at this time, the insulating layer 2 at the end is stripped to expose part of the twisted conductor 1, and then the joint assembly is installed on the twisted conductor 1, and the joint assembly is connected to the conductive assembly to ensure a good connection relationship, and then the heat dissipation assembly is installed.

[0026] like Figure 4 As shown, the wiring assembly is installed on the docking tube 6 and is used to separate multiple twisted conductors 1. The wiring assembly includes a mounting tube 10, a wiring board 11 and a mounting hole 12. Each docking tube 6 is provided with a mounting tube 10. The mounting tube 10 is connected to the docking tube 6 by a threaded connection. The threads of each two relatively positioned mounting tubes 10 have opposite rotation directions. A wiring board 11 is rotatably installed inside each mounting tube 10. Each wiring board 11 is provided with multiple mounting holes 12 at equal angles in a circular shape. Multiple twisted conductors 1 correspond to multiple mounting holes 12 one by one, and the mounting holes 12 are in sliding contact with the insulating layer 2.

[0027] Specifically, after the docking tube 6 is installed, the corresponding installation tube 10 is prepared, and the corresponding installation tube 10 is installed on the corresponding docking tube 6 by means of threaded connection. Since the threads of the two relatively positioned installation tubes 10 have opposite rotation directions, the stability of the docking is improved during use, and the possibility of loosening between the threads is reduced. In addition, the multiple twisted conductors 1 in the corresponding conductive cable are respectively passed through the corresponding installation holes 12, so that the insulating layer 2 is in sliding contact with the installation hole 12, thereby reducing the influence of electromagnetic interference on the connection position and improving the current transmission performance.

[0028] like Figure 6 As shown, a joint assembly is provided at the end of each twisted conductor 1, and the joint assembly includes a conductive joint 13 and a conductive sheet 14. A conductive joint 13 is provided at the end of each twisted conductor 1, and both ends of the conductive joint 13 are set as crimping areas, and the middle part is set as a conductive area. A plurality of conductive sheets 14 are fixedly installed at equal angles in a circular shape on each conductive area.

[0029] Specifically, when connecting the conductive cables, firstly, the end of each twisted conductor 1 is evenly mounted on the conductive connector 13 , and then a crimping tool is used to squeeze the crimping area, so that the conductive connector 13 is firmly fixed on the corresponding twisted conductor 1 .

[0030] like Figure 7 , Figure 8 As shown, a conductive frame 7 is provided between every two oppositely positioned butt joint tubes 6, and the conductive frame 7 is electrically connected to the joint assembly. A conductive assembly is installed on each conductive frame 7 for conducting electricity, and the conductive assembly includes a mounting groove 15, a butt joint groove 16 and a conductive portion. Both ends of each conductive frame 7 are provided with a plurality of mounting grooves 15 at equal angles in a circular shape, and the plurality of mounting grooves 15 correspond one-to-one to the plurality of twisted conductors 1. A butt joint groove 16 is provided between every two opposite mounting grooves 15, and a conductive portion is installed in each mounting groove 15 for electrically connecting two opposite twisted conductors 1.

[0031] Specifically, the corresponding conductive connector 13 is inserted into the corresponding mounting groove 15, and the conductive sheet 14 enters the conductive part, which is electrically connected to the conductive connector 13 at the other end of the conductive frame 7 through the setting of the docking groove 16, thereby realizing current transmission.

[0032] The above, such as Figure 8 As shown, the conductive part includes a conductive cylinder 17, a conductive slide groove 18 and a connecting conductor 19. A conductive cylinder 17 can be detachably installed inside each docking groove 16. Multiple conductive cylinders 17 correspond to multiple conductive joints 13 one by one. Multiple conductive slide grooves 18 are opened in a circular shape at equal angles inside each conductive cylinder 17. Multiple conductive slide grooves 18 correspond to multiple conductive sheets 14 one by one. The conductive sheets 14 are slidably connected to the conductive slide grooves 18. A connecting conductor 19 is fixedly installed inside each installation groove 15. The two ends of the connecting conductor 19 are respectively fixedly connected to two conductive cylinders 17 at opposite positions.

[0033] Specifically, when the conductive connector 13 is inserted into the conductive tube 17, the conductive sheet 14 on the conductive connector 13 enters the conductive slide groove 18. At this time, the end of a conductive cable is electrically connected to another relative conductive connector 13 through the arrangement of the conductive connector 13 and the conductive sheet 14, using the conductive slide groove 18 and the connecting conductor 19, to achieve current transmission. When affected by high temperature, the twisted conductor 1 expands, thereby pushing the corresponding conductive connector 13 to slide in the conductive tube 17. At this time, relative sliding also occurs between the conductive slide groove 18 and the conductive sheet 14, which does not affect normal current transmission.

[0034] like Figure 5As shown, each conductive component is installed with a heat dissipation component for heat dissipation, and the heat dissipation component includes a heat dissipation cylinder 20, an annular groove 21 and a protective part. The heat dissipation cylinder 20 is detachably installed on the outside of each conductive frame 7, and an annular groove 21 is opened at the end of each mounting cylinder 10. A protective part is installed between the annular grooves 21 on every two relatively positioned mounting cylinders 10 to protect the conductive frame 7.

[0035] Specifically, after the conductive cylinder 17 and the conductive joint 13 are installed, the heat dissipation cylinder 20 is mounted on the conductive frame 7 to transfer the heat at the joint.

[0036] The above, such as Figure 5 As shown, the protective part includes a shell 22 and connecting screws 23. Two shells 22 are symmetrically and detachably installed between the annular grooves 21 on each two opposite mounting cylinders 10. The four corners of each two symmetrically arranged shells 22 are connected by connecting screws 23. The protective part also includes an annular protrusion 24. Each shell 22 is provided with an annular protrusion 24, which is adapted to the heat dissipation cylinder 20.

[0037] Specifically, after installing the heat dissipation cylinder 20, the two ends of the two matching shells 22 are connected corresponding to the annular grooves 21 respectively, and the two shells 22 are connected by the setting of the connecting screws 23. Through the setting of the annular grooves 21, the shells 22 and the two mounting cylinders 10 form a whole, which improves stability. In addition, due to the setting of the annular protrusions 24, the contact area with the air is increased, so that the high temperature transmitted by the heat dissipation cylinder 20 can be dissipated more quickly.

[0038] To sum up, when two conductive cables are connected together, the conductive cables are first stripped to expose the twisted conductor 1 and the insulating layer 2, and the end faces of the lining layer 3, the filling layer 4 and the sheath layer 5 are smoothed. At this time, the connecting sleeves 6 are respectively installed on the opposite ends of the sheath layers 5 of the two conductive cables. At this time, the fixing ring 8 moves to a fixed position, and the fixing screws 9 are installed on the fixing ring 8 in turn, and then the fixing screws 9 are turned in turn until the bottom of the fixing screws 9 abuts against the sheath layer 5, thereby fixing the relative position of the fixing ring 8 and the sheath layer 5, fixing the connecting sleeve 6, and then preparing the corresponding installation sleeve 10, and installing the corresponding installation sleeve 10 on the corresponding connecting sleeve 6 by threaded connection, and passing the multiple twisted conductors 1 in the corresponding conductive cable through the corresponding installation holes 12 respectively.

[0039] At this time, the insulating layer 2 at the end is peeled off to expose part of the twisted conductor 1, and the end of each twisted conductor 1 is evenly covered with a conductive connector 13, and then the crimping area is squeezed with a crimping tool to firmly fix the conductive connector 13 on the corresponding twisted conductor 1, and then the corresponding conductive connector 13 is inserted into the corresponding mounting groove 15. At this time, the conductive sheet 14 on the conductive connector 13 enters the conductive slide groove 18, so that the end of a conductive cable is electrically connected to another relative conductive connector 13 through the setting of the conductive connector 13 and the conductive sheet 14, using the conductive slide groove 18 and the connecting conductor 19 to realize current transmission, and when affected by high temperature, the twisted conductor 1 expands, thereby pushing the corresponding conductive connector 13 to slide in the conductive cylinder 17, and at this time, the conductive slide groove 18 and the conductive sheet 14 also produce relative sliding, which does not affect the normal current transmission.

[0040] Finally, the heat dissipation cylinder 20 is mounted on the conductive frame 7, and the two ends of the two matching shells 22 are connected corresponding to the annular grooves 21. The two shells 22 are connected by the setting of the connecting screws 23. The annular grooves 21 are set so that the shells 22 and the two mounting cylinders 10 form a whole, which improves the stability. In addition, due to the setting of the annular protrusions 24, the contact area with the air is increased, so that the high temperature transmitted by the heat dissipation cylinder 20 can be dissipated.

[0041] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A low-voltage power cable, comprising a plurality of conductive cables, each of the conductive cables comprising a plurality of twisted conductors (1), the plurality of twisted conductors (1) being coated with an insulating layer (2) on the outside; the plurality of twisted conductors (1) being arranged inside an inner lining layer (3), a filling layer (4) being filled between the inner lining layer (3) and the plurality of insulating layers (2), the inner lining layer (3) being coated with a sheath layer (5) on the outside, characterized in that: Also includes: A butt joint sleeve (6), wherein the butt joint sleeve (6) is slidably mounted on the end of each of the sheath layers (5); A fixing component, each of the plurality of docking sleeves (6) is provided with the fixing component, and is used to fix the position of the docking sleeve (6); A wiring assembly, the wiring assembly being mounted on the butt-jointing sleeve (6) and being used to separate the plurality of twisted conductors (1); A connector assembly, wherein each end of the stranded conductor (1) is provided with the connector assembly; A conductive frame (7), wherein the conductive frame (7) is disposed between each two oppositely positioned butt joint tubes (6), and the conductive frame (7) is electrically connected to the joint assembly; A conductive component, each conductive frame (7) is equipped with the conductive component for conducting electricity; A heat dissipation component is installed on each of the conductive components for heat dissipation.

2. A low voltage power cable according to claim 1, characterized in that: The fixing assembly comprises: A fixing ring (8), wherein each of the docking tubes (6) is fixedly mounted with the fixing ring (8), and the inner side wall of the fixing ring (8) is in sliding contact with the sheath layer (5); Fixing screws (9), each fixing ring (8) is provided with a plurality of fixing screws (9) in a circular equiangular thread pattern, and the bottom ends of the fixing screws (9) abut against the sheath layer (5).

3. A low voltage power cable according to claim 2, characterized in that: The wiring assembly comprises: A mounting tube (10), each docking tube (6) being provided with the mounting tube (10), the mounting tube (10) being connected to the docking tube (6) by threaded connection, the threads of each two mounting tubes (10) being opposite to each other; A wire rack (11), wherein the wire rack (11) is rotatably mounted inside each of the mounting tubes (10); Mounting holes (12), each of the wiring boards (11) is provided with a plurality of mounting holes (12) at equal angles in a circular shape, the plurality of twisted conductors (1) correspond to the plurality of mounting holes (12) one by one, and the mounting holes (12) are in sliding contact with the insulating layer (2).

4. A low voltage power cable according to claim 3, characterized in that: The joint assembly comprises: A conductive joint (13), wherein each end of the twisted conductor (1) is provided with the conductive joint (13), and both ends of the conductive joint (13) are provided as crimping areas, and the middle part is provided as a conductive area; Conductive sheets (14), with a plurality of the conductive sheets (14) being fixedly mounted at equal angles in a circular shape on each conductive area.

5. A low voltage power cable according to claim 4, characterized in that: The conductive component comprises: Installation grooves (15), each of the conductive frames (7) having a plurality of installation grooves (15) formed at equal angles in a circumferential shape at both ends, the plurality of installation grooves (15) corresponding one-to-one to the plurality of twisted conductors (1); A docking groove (16), wherein the docking groove (16) is provided between each two opposing mounting grooves (15); A conductive part, wherein each of the mounting grooves (15) is provided with the conductive part, and is used for electrically connecting two opposite twisted conductors (1).

6. A low voltage power cable according to claim 5, characterized in that: The conductive part comprises: A conductive cylinder (17), wherein each of the docking grooves (16) is detachably provided with the conductive cylinder (17), and a plurality of the conductive cylinders (17) correspond one to one to a plurality of the conductive joints (13); Conductive slide grooves (18), each of the conductive cylinders (17) has a plurality of conductive slide grooves (18) formed in a circular shape at equal angles, the plurality of conductive slide grooves (18) correspond one to one with the plurality of conductive sheets (14), and the conductive sheets (14) are slidably connected to the conductive slide grooves (18); A connecting conductor (19), wherein the connecting conductor (19) is fixedly installed inside each of the installation slots (15), and two ends of the connecting conductor (19) are respectively fixedly connected to two oppositely located conductive cylinders (17).

7. A low voltage power cable according to claim 6, characterized in that: The heat dissipation component comprises: A heat dissipation cylinder (20), the heat dissipation cylinder (20) being detachably mounted on the outside of each of the conductive frames (7); An annular groove (21), wherein the end of each mounting tube (10) is provided with the annular groove (21); A protection part is installed between the annular grooves (21) on each two oppositely positioned mounting tubes (10) to protect the conductive frame (7).

8. A low voltage power cable according to claim 7, characterized in that: The protection part comprises: An outer shell (22), wherein two of the annular grooves (21) on each two oppositely positioned mounting tubes (10) are symmetrically and detachably mounted with two of the outer shells (22); Connecting screws (23), the four corners of every two symmetrically arranged housings (22) are connected using the connecting screws (23).

9. A low voltage power cable according to claim 8, characterized in that: It also includes an annular protrusion (24), each of the shells (22) is provided with the annular protrusion (24), and the annular protrusion (24) is adapted to the heat dissipation cylinder (20).

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