High-efficiency energy-saving ventilated indoor low-voltage cable

Abstract

The application discloses a kind of high efficiency energy-saving ventilation indoor low-voltage cable, including cable body, heat dissipation sheath and installation device, heat dissipation sheath is sleeved on the outside of cable body, installation device is used to sleeve heat dissipation sheath on cable body, heat dissipation sheath includes heat dissipation pipe network, heat dissipation pipe network is provided with support pipe network at a distance interval, installation device includes limiting portion, and fastening portion is installed on one side of limiting portion;Through installation device, the cable body that is sleeved with heat dissipation sheath is formed clamping, then along heat dissipation pipe network axial pulls cable body, makes heat dissipation pipe network gradually tighten, so that heat dissipation pipe network gradually deforms, since the grid of heat dissipation pipe network and support pipe network is diamond-shaped, so deformation fastening will make heat dissipation pipe network itself and support pipe network itself extend, when installation device clamps to support pipe network position, support belt will be pushed to stand up, and then form protection to cable body, ensure that multiple cables can keep certain spacing when installing, meet the demand of heat dissipation.

Description

Technical Field

[0001] This invention relates to the field of cable technology, specifically to a high-efficiency, energy-saving, ventilated indoor low-voltage cable. Background Technology

[0002] Cables are wires made of one or more mutually insulated conductors and an outer insulating protective layer, which transmit electricity or information from one place to another. There are many types of cables, such as power cables, control cables, compensating cables, shielded cables, high-temperature cables, computer cables, signal cables, coaxial cables, fire-resistant cables, marine cables, mining cables, and aluminum alloy cables.

[0003] Indoor cables are generally ordinary cables. Since they are in an indoor environment, they usually do not need to consider requirements such as high temperature resistance and corrosion resistance. However, when cables are used indoors, the installation space is small, especially when modifying circuits. Because it is impossible to remove the wall obstacles that would damage the original space, the installation position and method of cables are limited. Cables cannot be reasonably arranged in an exposed state. Therefore, when modifying circuits, multiple cables are often densely arranged, resulting in insufficient space between cables.

[0004] When electricity consumption is high, the heat generated by the cables increases. Due to the dense arrangement of multiple indoor cables and insufficient spacing between them, the excess heat cannot be dissipated in time, which increases the probability of dangerous accidents such as cable fires, posing safety hazards to production and daily life.

[0005] Therefore, we propose a high-efficiency, energy-saving, ventilated indoor low-voltage cable to solve the problems mentioned above. Summary of the Invention

[0006] The purpose of this invention is to provide a high-efficiency, energy-saving, ventilated indoor low-voltage cable. An installer clamps the cable body, which is fitted with a heat-dissipating sheath. The cable body is then pulled axially along the heat dissipation network, gradually tightening the network and deforming it. Since the mesh of the heat dissipation network and the supporting network is diamond-shaped, the deformation and tightening cause both the network to extend, moving the connecting plate assembly. Therefore, when the installer clamps the cable to the supporting network position, it pushes the support strip upright, protecting the cable body and ensuring that multiple cables maintain a certain distance from each other during installation, meeting heat dissipation requirements. This solves the problem of multiple cables being densely arranged together with insufficient spacing during circuit modification, preventing timely heat dissipation and increasing the probability of cable fires, posing safety hazards to production and daily life.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a high-efficiency energy-saving ventilated indoor low-voltage cable, comprising a cable body, a heat dissipation sheath, and an installer. The heat dissipation sheath is sleeved on the outside of the cable body through the installer. The heat dissipation sheath includes a heat dissipation pipe network. Support pipe networks are provided at intervals along the length direction of the heat dissipation pipe network. The installer includes a limiting part, and a fastening part is installed on one side of the limiting part.

[0008] Preferably, the cable body includes an outer sheath layer, and color difference layers are provided at intervals on the outer side of the outer sheath layer. The positions of the color difference layers correspond to the positions of the supporting pipe network. A wrapping tape layer is provided on the inner side of the outer sheath layer, and a plurality of insulating tubes are provided on the inner side of the wrapping tape layer. Each of the plurality of insulating tubes has a copper conductor core embedded inside.

[0009] Preferably, a temperature-sensing optical fiber is provided at the axial position of the outer sheath layer, and a plurality of insulating tubes are distributed circumferentially along the temperature-sensing optical fiber, and the sides of the plurality of insulating tubes abut against the sides of the temperature-sensing optical fiber.

[0010] Preferably, the inner core of the copper conductor is made of multiple strands of copper monofilaments twisted together, and the copper monofilaments are round or irregular monofilaments.

[0011] Preferably, a heat-dissipating filler layer is filled between the outer side of several insulating tubes and the inner wall of the wrapping tape layer. The filler in the heat-dissipating filler layer is grease-like, and powdered carbon black is added to the filler in the heat-dissipating filler layer.

[0012] Preferably, the heat dissipation pipe network is made of modified metal sheet, the modified metal sheet is vertical in the radial direction, and the mesh shape of the heat dissipation pipe network is rhomboid.

[0013] Preferably, the supporting pipe network includes multiple sets of connecting pieces, each set of connecting pieces includes several connecting pieces, and several connecting pieces in the same set of connecting pieces are fixedly connected to a metal mesh. The mesh of the metal mesh is rhomboid in shape. A support belt is fixedly connected between two adjacent sets of connecting pieces, and a limit opening is provided on the support belt.

[0014] Preferably, the limiting part includes two corresponding limiting blocks, and two corresponding limiting balls are movably connected to the inner wall of each limiting block. The installation position of the limiting balls is offset from the central axis of the corresponding limiting block, and their position is close to the edge of the corresponding limiting block. The positions of the multiple limiting balls are relative.

[0015] Preferably, the outer wall of the limiting block is rotatably connected to a rotating block, the two rotating blocks are positioned opposite each other, a thumb sleeve is installed on one side of one rotating block, and an index and middle finger sleeve is installed on one side of the other rotating block.

[0016] Preferably, the fastening part includes two corresponding fastening blocks. One end of each fastening block is fixedly connected to one end of a corresponding limiting block. The same clamping plate is fixedly connected to one side of each of the two fastening blocks. Four fastening wheels are installed inside each fastening block along a clockwise thread direction. The four fastening wheels are arranged in pairs and are symmetrically distributed along the central axis of the corresponding fastening block. One group of fastening wheels is close to the edge of the fastening block, and the other group of fastening wheels is close to the central axis of the fastening block. The positions of the fastening wheels on the two fastening blocks are staggered and correspond to each other.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. This invention uses an installer to clamp the cable body with a heat dissipation sheath. The cable body is then pulled axially along the heat dissipation network, moving it from the fastening part of the installer towards the limiting part. As the cable moves, the heat dissipation network is gradually tightened by the clockwise threaded fastening wheels through friction, causing the network to deform gradually from loose to tight, and evenly pressed onto the cable body surface. During operation, it is necessary to ensure that the fastening wheels apply force evenly to avoid excessive local pressure that could deform the outer sheath. The limiting ball clamps and limits the tightened heat dissipation network and cable body, preventing the cable body from slipping out of the operator's hands. When the installer clamps onto the supporting network, because the mesh of the heat dissipation network and the supporting network is diamond-shaped, the deformation and tightening will cause the heat dissipation network and the supporting network to extend, thus moving the connecting plate assembly. Therefore, when the installer clamps onto the supporting network, it will push the supporting strip upright, thereby protecting the cable body and ensuring that multiple cables maintain a certain distance from each other during installation to meet heat dissipation requirements.

[0019] 2. When this invention is used, the heat dissipation pipe network will be gradually deformed by the installer, changing from loose to tight, and will be evenly pressed onto the surface of the cable body, which is equivalent to increasing the surface area of ​​the cable body and improving the heat dissipation efficiency of the cable body. At the same time, the heat dissipation protective pipe can be regarded as an external steel wire armor, which reduces the overall weight of the cable while meeting the mechanical strength requirements and providing a certain degree of protection for the cable.

[0020] 3. In use, this invention simply requires attaching the heat dissipation sleeve to the cable body, then clamping the cable with an installer, and finally pulling the cable to form a protective heat dissipation layer and support frame on the cable body surface. This ensures that the heat dissipation and support functions are achieved. Therefore, the operation steps of this invention are simple, and compared with methods such as installing protective structures one by one on the cable body surface, it can greatly improve work efficiency and reduce the labor intensity of workers. Attached Figure Description

[0021] Figure 1 This is a three-dimensional view of the overall structure of a high-efficiency, energy-saving, ventilated indoor low-voltage cable according to the present invention;

[0022] Figure 2 This is a bottom view of the overall structure of a high-efficiency, energy-saving, ventilated indoor low-voltage cable according to the present invention;

[0023] Figure 3 This is a perspective view of the positional relationship between the cable body and the heat dissipation protective tube in a high-efficiency energy-saving ventilated indoor low-voltage cable of the present invention;

[0024] Figure 4 This is a perspective view showing the positional relationship between the color difference layer and the heat dissipation protective tube in a high-efficiency, energy-saving, ventilated indoor low-voltage cable of the present invention.

[0025] Figure 5 This is a three-dimensional cross-sectional view of the cable body in a high-efficiency, energy-saving, ventilated indoor low-voltage cable of the present invention;

[0026] Figure 6 This is a perspective view of a heat dissipation protective tube structure in a high-efficiency, energy-saving, ventilated indoor low-voltage cable according to the present invention;

[0027] Figure 7 This is a perspective view of the structure of an installer for a high-efficiency, energy-saving, ventilated indoor low-voltage cable according to the present invention.

[0028] Figure 8 This is a perspective view of the arrangement of the limiting ball and fastening block in a high-efficiency, energy-saving, ventilated indoor low-voltage cable according to the present invention.

[0029] In the diagram: 1. Cable body; 101. Outer sheath layer; 102. Color difference layer; 103. Wrapping tape layer; 104. Insulating tube; 105. Copper conductor inner core; 106. Temperature sensing optical fiber; 107. Heat dissipation filling layer; 2. Heat dissipation sheath; 201. Heat dissipation pipe network; 202. Support pipe network; 203. Connecting plate group; 204. Metal mesh; 205. Support strip; 206. Limiting port; 3. Installer; 301. Limiting part; 302. Fastening part; 303. Limiting block; 304. Limiting ball; 305. Rotating block; 306. Thumb sleeve; 307. Index and middle finger sleeve; 308. Fastening block; 309. Clamping plate; 310. Fastening wheel. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Please see the appendix Figure 1 - Appendix Figure 8As shown, the present invention provides a technical solution: a high-efficiency energy-saving ventilated indoor low-voltage cable, including a cable body 1, a heat dissipation sheath 2, and an installer 3. The heat dissipation sheath 2 is sleeved on the outside of the cable body 1 through the installer 3. The heat dissipation sheath 2 includes a heat dissipation network 201. Along the length direction of the heat dissipation network 201, a support network 202 is provided at intervals along the heat dissipation network 201. The installer 3 includes a limiting part 301, and a fastening part 302 is installed on one side of the limiting part 301.

[0032] Example 1, according to Figure 1 , Figure 3 and Figure 5 As shown, the cable body 1 includes an outer sheath layer 101. Color difference layers 102 are spaced apart on the outer side of the outer sheath layer 101, with the positions of the color difference layers 102 corresponding to the positions of the supporting pipe network 202. A wrapping tape layer 103 is provided on the inner side of the outer sheath layer 101, and several insulating tubes 104 are provided on the inner side of the wrapping tape layer 103. Each of the insulating tubes 104 has a copper conductor core 105 embedded inside. A temperature-sensing optical fiber 106 is located at the axial position of the outer sheath layer 101, and the several insulating tubes 104 extend along the temperature-sensing... The optical fiber 106 is circumferentially distributed, and the sides of several insulating tubes 104 are in contact with the sides of the temperature-sensing optical fiber 106; the copper conductor core 105 is made of multiple strands of copper monofilaments twisted together, the copper monofilaments are round or irregular monofilaments, and their twisted shape is similar to the shape of the inner wall of the insulating tube 104; a heat dissipation filling layer 107 is filled between the outer side of several insulating tubes 104 and the inner wall of the wrapping tape layer 103, the filler in the heat dissipation filling layer 107 is grease-like, and powdered carbon black is added to the filler in the heat dissipation filling layer 107.

[0033] The overall effect of Embodiment 1 is as follows: The cable body 1 includes an outer sheath layer 101, which is made of low-smoke halogen-free flame-retardant polyolefin (LSZH) material and formed by a double-layer co-extrusion process. The inner layer thickness accounts for 60% of the total sheath thickness and contains UV stabilizers. The outer layer contains abrasion resistant agents. Color difference layers 102 are provided at certain intervals on the outer side of the outer sheath layer 101. After the outer sheath cools and sets, the color difference layers 102 are engraved on the outer side of the sheath using a laser engraving machine. The width of the color difference layers 102 is slightly larger than the width of the support network 202 of the heat dissipation sheath 2. The color difference layers 102 are set at one-meter intervals and can be used as distance markers to assist in cable metering. The position of the color difference layers 102 corresponds to the position of the support network 202. During construction, the fixing points can be quickly located through visual identification. To significantly improve installation efficiency, the inner side of the outer sheath layer 101 is provided with a wrapping tape layer 103, and the inner side of the wrapping tape layer 103 is provided with several insulating tubes 104. High-strength non-woven fabric tape is wrapped around the outer layer of the insulating tubes 104 in an overlapping wrapping manner to form the wrapping tape layer 103. The wrapping tape layer 103 can provide mechanical protection and also serve as a dispersion carrier for carbon black particles, preventing carbon black particles from settling. Each of the several insulating tubes 104 has a copper conductor core 105 embedded inside. The insulating tubes 104 use cross-linked polyethylene (XLPE) or ethylene propylene rubber (EPR) as the insulating material. An insulating layer is wrapped around the outer layer of the copper conductor core 105 by an extruder. During the extrusion process, the temperature and traction speed are controlled to ensure that the insulation layer thickness is uniform and is monitored in real time by an external online diameter measuring instrument.

[0034] A temperature-sensing optical fiber 106 is provided at the axial position of the outer sheath layer 101. Several insulating tubes 104 are distributed around the temperature-sensing optical fiber 106, and the sides of the insulating tubes 104 are all in contact with the sides of the temperature-sensing optical fiber 106. The gap between the tube wall and the outer wall of the optical fiber is controlled within 0.5 mm and fixed with silicone adhesive. The temperature-sensing optical fiber 106 can monitor the core temperature of the cable in real time. If combined with distributed temperature sensing (DTS) technology, it can realize the temperature monitoring of the entire length of the cable at the kilometer level. The tight fit between the insulating tubes 104 and the optical fiber avoids mechanical damage caused by relative displacement. At the same time, the optical fiber can serve as a stress buffer medium when the cable is bent.

[0035] The copper conductor core 105 is composed of multiple strands of copper monofilaments twisted together. These monofilaments are either round or irregularly shaped, and their twisted shape approximates the inner wall shape of the insulating tube 104. In production, high-purity electrolytic copper is first selected as the raw material. A continuous wire drawing machine draws the copper rod into round or irregularly shaped monofilaments (such as trapezoidal or annular shapes) with the required diameter. Irregularly shaped monofilaments are formed using special molds to improve the tightness of the twisted structure. The drawn monofilaments undergo annealing to eliminate work hardening and restore ductility, while surface cleaning removes the oxide layer. The number of strands is determined by design (e.g., ...). 19 strands, 37 strands, etc.) are concentrically stranded using a stranding machine. During stranding, a reverse stranding process is used to make the stranding direction of adjacent single wires opposite, reducing torsional stress. The shape of the stranded conductor must match the contour of the inner wall of the insulating tube 104 (such as circular, fan-shaped, etc.). The outer diameter of the conductor is controlled by a customized mold to ensure that the fit with the inner wall of the insulating tube 104 is ≥95%, reducing internal gaps. This allows for an increase in the conductor fill factor, a reduction in the skin effect, and an improvement in conductivity. The structural design that fits tightly to the inner wall of the insulating tube 104 can reduce the air gap between the conductor and the insulation layer, reducing the risk of partial discharge.

[0036] A heat dissipation filling layer 107 is filled between the outer side of several insulating tubes 104 and the inner wall of the wrapping tape layer 103. The heat dissipation filling layer 107 is filled with a grease-like substance, and powdered carbon black is added to the filling material. The grease-like filling material has good fluidity and can completely fill the tiny gaps, reducing the air bubbles generated during filling and improving the thermal conductivity of the cable. The carbon black particles form a thermally conductive network, reducing the thermal resistance by more than 40%. The carbon black particles themselves are non-conductive, which can improve the safety of the cable. Carbon black is also inexpensive, costing only a fraction of that of copper. Therefore, using carbon black in the filling layer can save on the production cost of the cable.

[0037] Example 2, according to Figure 2 , Figure 3 , Figure 6 and Figure 7 As shown, the heat dissipation pipe network 201 is made of modified metal sheet, which is vertical in the radial direction. The mesh shape of the heat dissipation pipe network 201 is rhomboid. The support pipe network 202 includes multiple sets of connecting piece groups 203. Each set of connecting piece groups 203 contains several connecting pieces. Metal mesh 204 is fixedly connected between several connecting pieces in the same set of connecting piece groups 203. The mesh shape of the metal mesh 204 is rhomboid. A support strip 205 is fixedly connected between two adjacent sets of connecting piece groups 203. A limit opening 206 is opened on the support strip 205.

[0038] The overall effect achieved in Embodiment 2 is as follows: The heat dissipation pipe network 201 is made of modified metal sheet, which uses aluminum-based composite material as the base material. A diamond-shaped mesh is punched into the metal sheet using a high-speed stamping machine. After stamping, the surface is anodized to form an oxide film, improving corrosion resistance. The main modification direction of the modified metal sheet is to improve its toughness. The modified metal sheet is vertical in the radial direction. Compared to a filamentous metal mesh, this heat dissipation pipe network 201 has a larger surface area and higher heat dissipation efficiency. The mesh shape of the heat dissipation pipe network 201 is diamond-shaped, making it easy to deform. This allows the loosely fitted heat dissipation sleeve 2 to be quickly deformed and tightly attached to the surface of the cable body 1 through the installation device 3. The supporting pipe network 202 includes two connecting piece groups 203, each containing several connecting pieces. Several connecting pieces in the same connecting piece group 203... Metal mesh 204 is fixedly connected between each connector. The mesh of the metal mesh 204 is diamond-shaped. A support strip 205 is fixedly connected between two connector groups 203. The support strip 205 has a certain degree of flexibility and a limiting port 206 is opened on the support strip 205. After the installation device 3 is operated, the corresponding connector groups 203 move closer together, causing the support strip 205 to fold up. The limiting port 206 can mark and limit other cables to a certain extent, so that a certain distance is maintained between each cable to ensure that the cable is relatively neat when installed. There is a certain heat dissipation space between each cable. At the same time, the heat dissipation pipe network 201 can be regarded as an external steel wire armor. The density of aluminum-based composite material is only 1 / 3 of that of steel. While reducing the overall weight of the cable, it meets the mechanical strength requirements and provides a certain degree of protection for the cable.

[0039] Example 3, according to Figures 1-7 As shown, the limiting part 301 includes two corresponding limiting blocks 303. Two corresponding limiting balls 304 are movably connected to the inner wall of each limiting block 303. The installation position of the limiting balls 304 is offset from the central axis of the corresponding limiting block 303, and their position is close to the edge of the corresponding limiting block 303. The positions of the multiple limiting balls 304 are opposite. A rotating block 305 is rotatably connected to the outer wall of the limiting block 303. The two rotating blocks 305 are opposite to each other. A thumb sleeve 306 is installed on one side of one rotating block 305, and an index and middle finger sleeve 307 is installed on one side of the other rotating block 305. The fastening part 302 includes... It includes two corresponding fastening blocks 308. One end of the fastening block 308 is fixedly connected to one end of the corresponding limiting block 303. The same clamping plate 309 is fixedly connected to one side of the two fastening blocks 308. Four fastening wheels 310 are installed inside the fastening block 308 along the clockwise thread direction. The four fastening wheels 310 are in pairs and are symmetrically distributed along the central axis of the corresponding fastening block 308. One set of fastening wheels 310 is close to the edge of the fastening block 308, and the other set of fastening wheels 310 is close to the central axis of the fastening block 308. The positions of the fastening wheels 310 on the two fastening blocks 308 are staggered and correspond to each other.

[0040] The overall effect achieved by embodiment 3 is as follows: The limiting part 301 includes two corresponding limiting blocks 303, and two corresponding limiting balls 304 are movably connected to the inner wall of each limiting block 303. Compared with the wheel-shaped limiting device, the spherical limiting balls 304 can roll freely without axial movement, which is more suitable for cables with small bends on the surface, allowing the cable to be pulled smoothly without detaching from the limiting part 301. The installation position of the limiting balls 304 is offset from the central axis of the corresponding limiting block 303, and its position is close to the edge of the corresponding limiting block 303. The positions of the multiple limiting balls 304 are relative, and the design of the limiting balls 304 offset from the central axis forms an asymmetrical clamping force. When the cable shakes radially, the limiting balls 304... 04. Dynamic adjustment of the contact point with the cable surface can suppress the vibration amplitude of the cable during radial swaying, and also make the cable clamping more secure. Rotating blocks 305 are rotatably connected to the outer wall of the limiting block 303. The two rotating blocks 305 are positioned opposite each other. A thumb sleeve 306 is installed on one side of one rotating block 305, and an index and middle finger sleeve 307 is installed on one side of the other rotating block 305. The surfaces of the thumb sleeve 306 and the index and middle finger sleeve 307 are covered with a silicone layer with anti-slip texture, which improves the grip and makes the installer 3 more secure. The rotating blocks 305 allow the positions of the thumb sleeve 306 and the index and middle finger sleeve 307 to be adjustable to suit different hand shapes and sizes. The design is optimized for hand grip, making it more comfortable for workers to hold the installer 3. The fastening part 302 includes two corresponding fastening blocks 308. One end of each fastening block 308 is fixedly connected to one end of a corresponding limiting block 303. The same clamping plate 309 is fixedly connected to one side of each of the two fastening blocks 308. Four fastening wheels 310 are installed inside each fastening block 308 along a clockwise thread direction. The four fastening wheels 310 are arranged in pairs and are symmetrically distributed along the central axis of the corresponding fastening block 308. One set of fastening wheels 310 is close to the edge of the corresponding fastening block 308, and the other set is close to the central axis of the corresponding fastening block 308. The positions of the fastening wheels 310 on the two fastening blocks 308 are staggered. This invention... The fastening block 308 has four threaded mounting grooves machined clockwise inside. Each groove is embedded with a polyoxymethylene (POM) fastening wheel 310. The fastening wheels 310 are grouped as follows: the first group (two) is close to the edge of the fastening block 308, and the second group (two) is close to the central axis. The two groups of wheels are spaced apart to form an alternating arrangement. The fastening wheels 310 are distributed in a clockwise thread direction, which is consistent with the operator's right-handed spiral habit. When rotating the fastening wheels 310, the direction of force is natural, which can greatly improve the efficiency of single-handed operation. The alternating arrangement of the fastening wheels 310 makes the clamping plate 309 evenly stressed. The edge wheels prevent the clamping plate 309 from warping, and the center wheel ensures that the clamping force in the core area is concentrated, resulting in a small standard deviation of the overall clamping force.

[0041] The working principle of the entire device is as follows: When using this invention, firstly, the operator needs to check the integrity of the cable body 1, the heat dissipation sheath 2, and the installer 3. For the cable body 1, the outer sheath layer 101 needs to be checked for damage, and the color difference layer 102 markings need to be clear (for subsequent positioning of the support pipe network 202). For the heat dissipation sheath 2, it needs to be confirmed that the material (modified metal sheet) and diamond mesh structure of the heat dissipation pipe network 201 and the support pipe network 202 are free from deformation. For the installer 3, it needs to verify whether the limiting ball 304 of the limiting part 301 moves smoothly and whether the threads of the fastening wheel 310 of the fastening part 302 are intact. Then, the heat dissipation pipe network 201 is slidably sleeved along the axial direction of the cable body 1, while simultaneously positioning the support pipe network 202 through the color difference layer 102 markings on the outer sheath layer 101. Next, place the cable body 1 flat on the mounting platform. Determine the installation path according to the design. The operator holds the limiting part 301 of the installer 3 and places the two limiting blocks 303 on the upper and lower sides of the cable body 1 respectively, and applies slight pressure so that the limiting ball 304 makes slight contact with the outer sheath layer 101 of the cable body 1, forming a three-point clamping. Ensure that the axis of the cable body 1 is aligned with the central axis of the installer 3. At this time, both the limiting part 301 and the fastening part 302 clamp the cable body 1. Then, pull the cable body 1 axially along the heat dissipation pipe network 201, so that the cable body 1 moves from the fastening part 302 of the installer 3 towards the limiting part 301 of the installer 3. When the cable moves, the heat dissipation pipe network 201 is passed by the clockwise threaded fastening wheel 310. As friction gradually tightens, the heat dissipation pipe network 201 gradually deforms, changing from loose to tight, and is evenly pressed onto the surface of the cable body 1. During operation, it is necessary to ensure that the tightening wheel 310 applies force evenly to avoid excessive local pressure that could deform the outer sheath layer 101. The limiting ball 304 clamps and limits the tightened heat dissipation pipe network 201 and the cable body 1, preventing the cable body 1 from slipping out of the operator's hand. When the installer 3 clamps onto the supporting pipe network 202, because the mesh of the heat dissipation pipe network 201 and the supporting pipe network 202 is diamond-shaped, the deformation and tightening will cause the heat dissipation pipe network 201 and the supporting pipe network 202 to extend, which can drive the connecting plate group 203 to move. Therefore, when the installer 3 clamps onto the supporting pipe network 202, it will push the supporting pipe network 202 to move. The 205 strip is erected to protect the cable body 1, ensuring that multiple cables can maintain a certain distance from each other during installation to meet the heat dissipation requirements. The connecting strip is normally flat, making the heat dissipation sleeve 2 easy to roll up. After the connection is completed, the cable load test is started. The temperature distribution is monitored in real time through the temperature sensing optical fiber 106 in the outer sheath layer 101. If an abnormal temperature rise is found in a certain section of the cable, the corresponding support pipe network 202 can be quickly located through the color difference layer 102 to check whether the heat dissipation pipe network 201 is blocked or whether the support strip 205 is loose. At the same time, the grease filler (containing powdered carbon black) in the heat dissipation filling layer 107 can transfer internal heat to the heat dissipation sleeve 2 through thermal conduction. The addition of carbon black can enhance the radiation heat dissipation efficiency.

[0042] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A high-efficiency, energy-saving, ventilated indoor low-voltage cable, characterized in that: The cable includes a cable body (1), a heat dissipation sheath (2), and an installer (3). The heat dissipation sheath (2) is sleeved on the outside of the cable body (1) through the installer (3). The heat dissipation sheath (2) includes a heat dissipation network (201). Along the length of the heat dissipation network (201), a support network (202) is provided at intervals along the heat dissipation network (201). The installer (3) includes a limiting part (301). A fastening part (302) is installed on one side of the limiting part (301). The fastening part (302) includes two corresponding fastening blocks (308). One end of the fastening block (308) is fixedly connected to one end of the corresponding limiting block (303). The same clamping plate (309) is fixedly connected to one side of the two fastening blocks (308). Four fastening wheels (310) are installed inside the fastening block (308) along the clockwise thread direction. The four fastening wheels (310) are in pairs and are symmetrically distributed along the central axis of the corresponding fastening block (308). One group of fastening wheels (310) is close to the edge of the fastening block (308), and the other group of fastening wheels (310) is close to the central axis of the fastening block (308). The positions of the fastening wheels (310) on the two fastening blocks (308) are staggered and correspond to each other.

2. The high-efficiency energy-saving ventilated indoor low-voltage cable according to claim 1, characterized in that: The cable body (1) includes an outer sheath layer (101), and color difference layers (102) are provided at intervals on the outer side of the outer sheath layer (101). The position of the color difference layers (102) corresponds to the position of the support network (202). A wrapping tape layer (103) is provided on the inner side of the outer sheath layer (101). A plurality of insulating tubes (104) are provided on the inner side of the wrapping tape layer (103). A copper conductor core (105) is embedded inside each of the plurality of insulating tubes (104).

3. The high-efficiency energy-saving ventilated indoor low-voltage cable according to claim 2, characterized in that: The outer sheath layer (101) has a temperature-sensing optical fiber (106) at its axial position, and a plurality of insulating tubes (104) are distributed circumferentially along the temperature-sensing optical fiber (106), and the sides of the plurality of insulating tubes (104) abut against the sides of the temperature-sensing optical fiber (106).

4. The high-efficiency energy-saving ventilated indoor low-voltage cable according to claim 2, characterized in that: The copper conductor core (105) is made of multiple strands of copper monofilaments twisted together, and the copper monofilaments are round or irregular monofilaments.

5. The high-efficiency energy-saving ventilated indoor low-voltage cable according to claim 2, characterized in that: A heat dissipation filling layer (107) is filled between the outer side of several insulating tubes (104) and the inner wall of the wrapping tape layer (103). The heat dissipation filling layer (107) is filled with a grease-like substance, and powdered carbon black is added to the heat dissipation filling layer (107).

6. The high-efficiency energy-saving ventilated indoor low-voltage cable according to claim 1, characterized in that: The heat dissipation pipe network (201) is made of modified metal sheet, which is vertical in the radial direction, and the mesh shape of the heat dissipation pipe network (201) is rhomboid.

7. The high-efficiency energy-saving ventilated indoor low-voltage cable according to claim 2, characterized in that: The supporting pipe network (202) includes multiple sets of connecting piece groups (203). Each set of connecting piece groups (203) contains several connecting pieces. A metal mesh (204) is fixedly connected between several connecting pieces in the same set of connecting piece groups (203). The mesh shape of the metal mesh (204) is rhomboid. A support belt (205) is fixedly connected between two adjacent sets of connecting piece groups (203). A limit port (206) is opened on the support belt (205).

8. The high-efficiency energy-saving ventilated indoor low-voltage cable according to claim 1, characterized in that: The limiting part (301) includes two corresponding limiting blocks (303). Two corresponding limiting balls (304) are movably connected to the inner wall of each limiting block (303). The installation position of the limiting balls (304) is offset from the central axis of the corresponding limiting block (303), and its position is close to the edge of the corresponding limiting block (303). The positions of the multiple limiting balls (304) are relative.

9. A high-efficiency, energy-saving, ventilated indoor low-voltage cable according to claim 8, characterized in that: The outer wall of the limiting block (303) is rotatably connected to the rotating block (305). The two rotating blocks (305) are positioned opposite each other. A thumb sleeve (306) is installed on one side of one of the rotating blocks (305), and an index and middle finger sleeve (307) is installed on one side of the other rotating block (305).

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