Intelligent monitoring device for ring main unit

Abstract

The application relates to the technical field of power distribution equipment, and particularly discloses an intelligent monitoring device for a ring main unit, which comprises a host computer, a detection unit and a heat dissipation and dehumidification device. The heat dissipation and dehumidification device comprises a mounting plate, a heat conduction disc and a motor device, the mounting plate is provided with a circular hole and is provided with an annular water collecting groove, the annular water collecting groove is provided with a water outlet; a threaded section is arranged on a power shaft of the motor device, a shaft sleeve matched with the threaded section is fixedly arranged on the heat conduction disc, and the heat conduction disc has two stations and can be switched based on the rotating direction of the power shaft. When the heat dissipation and dehumidification device operates under the condition that the external environment humidity is high or dust content is high, the heat conduction disc blocks the circular hole, heat dissipation and dehumidification are realized through heat exchange, the invasion of external humidity and dust is avoided, and the problem of additional heat generated in the dehumidification process is eliminated. The intelligent monitoring device for the ring main unit can realize the double functions of heat dissipation and dehumidification, the utilization rate of core components is high, the overall structure is simple and compact, the device is easy to install, has strong applicability and low implementation cost.

Description

Technical Field

[0001] This invention relates to the field of power distribution equipment technology, and in particular to an intelligent monitoring device for ring main units. Background Technology

[0002] As a core component of power distribution systems, the monitoring and control of internal temperature and humidity in ring main units (RMS) are crucial for ensuring operational stability, extending equipment lifespan, and maintaining the safe operation of the power distribution system. Current common methods for temperature and humidity control in RMS include using axial flow fans for forced ventilation to prevent overheating, and employing semiconductor dehumidifiers to dehumidify and prevent condensation. The heat dissipation and dehumidification modules are independent control units. However, these existing technologies have significant drawbacks: First, during forced ventilation, moisture and dust from the external environment enter the RMS with the airflow, increasing internal humidity and exacerbating condensation. Dust accumulation also reduces the insulation performance of internal components. Second, semiconductor dehumidifiers consume a lot of energy and generate significant waste heat, directly increasing internal temperature and triggering continuous operation of the heat dissipation module, creating a vicious cycle of "dehumidification and heating, heating and heat dissipation, heat dissipation with moisture, and then dehumidification again."

[0003] In summary, the heat dissipation and dehumidification methods of existing ring main units cannot achieve efficient and coordinated control, resulting in high operating energy consumption and easy introduction of external pollutants that affect the performance of the ring main unit. This makes it difficult to meet the stable operation requirements of ring main units in different natural environments, becoming a bottleneck in the development of intelligent monitoring technology for ring main units. Summary of the Invention

[0004] To address the problems existing in the prior art, the present invention aims to provide an intelligent monitoring device for ring main units, which solves the technical problems of mutual interference between heat dissipation and dehumidification, high energy consumption, and easy introduction of external pollutants in the prior art, and realizes the coordinated control of heat dissipation and dehumidification of ring main units.

[0005] To achieve the above-mentioned technical objectives, the present invention adopts the following technical solution:

[0006] A ring main unit intelligent monitoring device includes a main unit, a detection unit, and a heat dissipation and dehumidification device. The main unit has a built-in control system and transmission module, establishing a data interaction link with the monitoring platform. The heat dissipation and dehumidification device includes a mounting plate, a heat conduction plate, and a motor. A circular hole is opened on the mounting plate, and an annular water collection groove is fixedly connected to one side of the mounting plate, with a drain outlet in the annular water collection groove. The motor is fixed to the other side of the mounting plate, and its drive shaft has a threaded section with limiting parts at both ends. The heat conduction plate consists of a plate body, an outer ring, and a threaded sleeve. The plate body is a thin-shell structure made of thermally conductive material, with several radially extending and radially distributed grooves. The groove has fins fixedly connected to both sides of the disc body at the top of the groove, and an outer ring is fixed to the outer edge of the disc body; the screw sleeve is fixedly connected to the disc body and is threadedly engaged with the threaded section of the power shaft; when the screw sleeve abuts against a limiting part, the outer ring extends into the circular hole and its two ends are respectively located on both sides of the mounting plate, and the heat-conducting plate seals the circular hole; when the screw sleeve abuts against another limiting part, the heat-conducting plate is located outside the circular hole, and a ventilation gap is formed between the heat-conducting plate and the circular hole; the heat dissipation and dehumidification device is controlled by a control system, which adjusts the rotation direction of the power shaft during operation of the motor device based on real-time weather data and humidity and dust content data of the external environment.

[0007] In a preferred embodiment, a collar is fitted around the outer ring to rotate with it. When the heat-conducting plate is in the first working position, the collar contacts and engages with the mounting plate. Furthermore, a sealing gasket or sealing ring is provided on the mating surface of the collar, the outer ring, and the mounting plate.

[0008] In a preferred embodiment, the heat-conducting plate is made of a thermally conductive metal sheet as the substrate, and the groove structure is manufactured by an integrated pressing and molding process.

[0009] In a preferred embodiment, the mounting plate covers the pre-reserved mounting opening on the ring main unit, and the mounting plate is sealed and fixed to the wall of the ring main unit; the motor device is located outside the ring main unit, the annular water collection tank is located inside the ring main unit, and the drain outlet of the annular water collection tank is connected to a drain pipe.

[0010] In a preferred embodiment, the annular water collection trough is formed by bending a profile.

[0011] In a preferred embodiment, the detection unit is equipped with several temperature sensors and humidity sensors, which are distributed in different compartments inside the ring main unit and feed back the temperature and humidity detection data of the corresponding compartments to the host; multiple heat dissipation and dehumidification devices are configured and installed on the walls of different compartments of the ring main unit.

[0012] In a preferred embodiment, the detection unit is equipped with a temperature sensor and a humidity sensor arranged outside the ring main unit to feed back temperature and humidity data of the external environment to the host.

[0013] In a preferred embodiment, a protective cover is fixedly installed on the mounting plate, the protective cover covering the motor device inside, and a ventilation structure is provided on the wall of the protective cover; further, the main unit is fixedly installed inside the protective cover, and the connection line between the main unit and the detection unit passes through a pre-set wire hole on the mounting plate and is sealed to enter the ring network cabinet.

[0014] Compared with the prior art, the intelligent monitoring device for ring main units in this invention has the following beneficial technical effects:

[0015] 1. This invention incorporates real-time weather data and ambient humidity and dust content data into its core control system. By controlling the switching of the heat transfer plate's workstation, the operating mode of the heat dissipation and dehumidification device can be switched. In harsh environments such as fog, rain, snow, and sandstorms, the circular holes remain sealed, employing a heat exchange method without external airflow to achieve heat dissipation and dehumidification control. This prevents external moisture and dust from entering the ring main unit and eliminates the problem of additional heat generation during dehumidification. It breaks the vicious cycle of mutual constraint between heat dissipation and dehumidification in existing technologies, achieving efficient synergistic control of the two and significantly reducing overall operating costs.

[0016] 2. This invention achieves dual functions of heat dissipation and dehumidification through a heat dissipation and dehumidification device. The heat-conducting plate, as the core functional component, combines multiple functions such as heat exchange, preferential condensation adhesion, condensation guidance and collection, airflow drive, and adjustment of the circular orifice sealing state. The heat-conducting plate's station switching and normal operation are driven by the same motor, eliminating the need for additional drive devices and control components. This design significantly improves the component utilization rate of the heat dissipation and dehumidification device, resulting in a simple and compact overall structure and low implementation cost.

[0017] 3. The heat dissipation and dehumidification device in this invention is an integrated structure. It only requires opening an installation port on the wall of the ring main unit and sealing the installation plate to the cabinet wall with fastening connectors to complete the overall installation of the heat dissipation and dehumidification device. There is no need to carry out large-scale structural modifications to the ring main unit. It is suitable for the original installation requirements of new ring main units and can also efficiently adapt to the intelligent upgrade and transformation of existing ring main units, and is compatible with the installation requirements of ring main units of different specifications. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments will be briefly described below. Obviously, the drawings described below only relate to some embodiments of the present invention, and are not intended to limit the present invention.

[0019] Figure 1 This is a schematic diagram of the component composition of the intelligent monitoring device for ring main units in an embodiment of the present invention.

[0020] Figure 2 This is a schematic diagram of the overall structure of the heat dissipation and dehumidification device in an embodiment of the present invention.

[0021] Figure 3 This is a schematic diagram of the structure of the heat dissipation and dehumidification device after partial cross-section in an embodiment of the present invention.

[0022] Figure 4 This is a schematic diagram of the mounting plate in an embodiment of the present invention.

[0023] Figure 5 This is a schematic diagram of the structure of the heat-conducting plate in an embodiment of the present invention.

[0024] Figure 6 This is a schematic diagram of the structure of the heat-conducting plate in an embodiment of the present invention.

[0025] Figure 7 This is a schematic diagram of the operation of the heat dissipation and dehumidification device when the heat-conducting plate is in the first working position in an embodiment of the present invention.

[0026] Figure 8 This is a schematic diagram of the operation of the heat dissipation and dehumidification device when the heat-conducting plate is in the second working position in an embodiment of the present invention.

[0027] Figure 9 This is a schematic diagram of the external structure of the heat dissipation and dehumidification device in an embodiment of the present invention when a protective cover is provided.

[0028] Figure 10 This is a schematic diagram of the internal structure of the heat dissipation and dehumidification device in an embodiment of the present invention when a protective cover is provided.

[0029] Figure label:

[0030] 1-Heat dissipation and dehumidification device; 101-Motor unit; 102-Fins; 103-Bracket; 104-Mounting plate; 105-Disc body; 1051-Groove; 106-Outer ring; 107-Threaded sleeve; 108-Threaded section; 109-Collar; 110-Drive shaft; 111-Drain outlet; 112-Annular water collection trough; 1121-Cavity; 113-Limiting part; 114-Circular hole; 115-Ventilation structure; 116-Protective cover; 117-Wire hole; 118-Connecting line; 2-Main unit; 3-Detection unit; 4-Mounting port. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the described embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0032] Reference Figure 1As shown, the intelligent monitoring device for ring main unit in this embodiment of the invention mainly consists of a host 2, a detection unit 3, and a heat dissipation and dehumidification device 1.

[0033] The detection unit 3 is equipped with a temperature sensor and a humidity sensor electrically connected to the host unit 2. These sensors are used to collect real-time temperature and humidity data inside the ring main unit and transmit it to the host unit 2. The host unit 2 has a built-in control system and transmission module. The control system establishes a data interaction relationship with the monitoring platform based on the wireless or wired data transmission link (4G / 5G / RS485) in the transmission module, enabling remote online monitoring of the equipment's operating status. Based on the feedback data from the detection unit 3 and the remote commands from the monitoring platform, the control system intelligently regulates the operating status of the heat dissipation and dehumidification device 1, achieving cooling and condensation prevention effects on the ring main unit. Furthermore, according to actual power distribution monitoring needs, corresponding detection elements can be added to the detection unit 3 to simultaneously detect cable joint temperature, partial discharge, overcurrent, overload, and other conditions, further expanding the monitoring dimensions of the device and improving its overall monitoring performance.

[0034] Reference Figures 1-6As shown, the heat dissipation and dehumidification device 1 mainly includes a mounting plate 104, a heat-conducting plate, and a motor device 101. The mounting plate 104 is a flat plate structure, preferably made of rectangular cold-rolled steel plate with electrostatic powder coating or hot-dip galvanizing treatment on the surface. A circular hole 114 is opened in the middle of the mounting plate 104, and an annular water collection tank 112 is fixedly connected to one side of the mounting plate 104. The annular water collection tank 112 is a closed ring structure, extending around the circular hole 114. A cavity 1121 is provided on the inner circle side of the annular water collection tank 112 for collecting condensation. A drain outlet 111 is connected to the annular water collection tank 112. The motor device 101 is controlled by a control system and has forward and reverse rotation functions. It is fixed to the other side of the mounting plate 104 by a bracket 103. The power shaft 110 of the motor device 101 is coaxially distributed with the circular hole 114. A threaded section 108 is provided on the power shaft 110, and limit parts 113 are fixedly provided at both ends of the threaded section 108. The heat-conducting plate consists of a coaxially arranged plate body 105, an outer ring 106, and a threaded sleeve 107. The plate body 105 is a thin-shell structure made of thermally conductive material, with several radially extending and radially distributed grooves 1051. The concave and convex directions of adjacent grooves 1051 are opposite. Fins 102 are fixedly connected to the top of the grooves 1051 on both sides of the plate body 105. The outer ring 106 is fixed to the outer edge of the plate body 105, making the outer circumference of the heat-conducting plate regular. The threaded sleeve 107 is fixedly connected to the plate body 105 and threadedly engaged with the threaded section 108 of the power shaft 110. When the threaded sleeve 107 rotates relative to the power shaft 110, the threaded sleeve 107 can move axially between the two limiting parts 113, thereby driving the heat-conducting plate to achieve automatic switching between two working positions. During implementation, a bearing seat can be set on the mounting plate 104 to provide support for the power shaft 110, thereby improving the operating stability of the motor device 101 and the smoothness of the rotation of the heat-conducting plate.

[0035] The specific logic for switching heat transfer plate workstations is as follows: Figure 7 As shown, when the threaded sleeve 107 contacts and engages with the limiting part 113 away from the motor device 101, the heat-conducting disk is located in the first position. If the heat-conducting disk is not in the first position, when the power shaft 110 rotates in the first direction, the heat-conducting disk cannot rotate synchronously with the power shaft 110 due to air resistance and inertia. The threaded sleeve 107 will rotate relative to the power shaft 110, and then move in the direction away from the motor device 101. When the threaded sleeve 107 abuts against the corresponding limiting part 113, it cannot continue to move axially. At this time, the heat-conducting disk switches to the first position and rotates synchronously with the power shaft 110. When the heat-conducting disk is in the first position, the outer ring 106 extends into the circular hole 114 and its two ends are located on both sides of the mounting plate 104. In this state, the heat-conducting disk blocks the circular hole 114 and the two can rotate relative to each other, that is, the circular hole 114 does not interfere with the rotation of the heat-conducting disk. Figure 8As shown, when the screw sleeve 107 contacts and engages with the limiting part 113 near the motor device 101, the heat transfer plate is located in the second position. If the heat transfer plate is not in the second position, when the power shaft 110 rotates in the second direction, the heat transfer plate cannot rotate synchronously with the power shaft 110 due to air resistance and inertia. The screw sleeve 107 will rotate relative to the power shaft 110 and move towards the direction near the motor device 101. When the screw sleeve 107 abuts against the corresponding limiting part 113, it cannot continue to move axially. At this time, the heat transfer plate switches to the second position and rotates synchronously with the power shaft 110. When the heat transfer plate is in the second position, it is located outside the circular hole 114, so that a ventilation gap is formed between the heat transfer plate and the circular hole 114, that is, the inside of the ring main unit can be connected to the outside through the circular hole 114.

[0036] In the aforementioned station adjustment mechanism of the heat transfer plate, the threaded section 108 of the power shaft 110 and the threaded sleeve 107 are threadedly engaged to form a screw drive pair. Their core function is to drive the heat transfer plate axially to complete automatic station switching, rather than to achieve a locking function. Therefore, during implementation, the frictional resistance between the threaded section 108 and the threaded sleeve 107 should be minimized to ensure smooth relative movement. Specifically, this can be achieved by rationally designing the thread pitch and clearance, lubricating the mating surfaces, and selecting a special threaded sleeve for the ball screw. This ensures that when the power shaft 110 starts rotating, the threaded sleeve 107 can smoothly rotate relative to the threaded section 108 under the influence of air resistance and its own inertia, preventing the mechanism from jamming and ensuring the stable and reliable station switching function of the heat transfer plate.

[0037] Depending on the specific heat dissipation and dehumidification requirements, the heat dissipation and dehumidification device 1 can be installed on the upper or side wall of the ring main unit. The specific installation method is as follows:

[0038] like Figure 3 , Figure 7 , Figure 8 As shown, an installation port 4 matching the heat dissipation and dehumidification device 1 is opened on the upper or side wall of the ring main unit. The installation plate 104 is covered at the installation port 4, and the installation plate 104 is fixedly connected to the wall of the ring main unit by bolt and nut assembly or fastening screws. After installation, the motor device 101 is placed outside the ring main unit, and the annular water collection tank 112 is placed inside the ring main unit. The drain outlet 111 of the annular water collection tank 112 is connected to the drain pipe to ensure that the dew collected in the annular water collection tank 112 can be discharged in a directional manner.

[0039] The control system can adjust the rotation direction of the power shaft of the motor device 101 based on real-time weather data, humidity and dust content data of the external environment, so that the heat dissipation and dehumidification device 1 can adopt different operating modes for heat dissipation and dehumidification according to different external environments.

[0040] For example, when the ambient humidity and dust content are high, or when there is severe weather such as fog, rain, snow, or sandstorms, refer to Figure 7 As shown, when the heat dissipation and dehumidification device 1 is running, the power shaft 110 rotates in the first direction, the heat conduction plate keeps running in the first position, and the circular hole 114 is in a sealed state, so that the inside of the ring main unit is isolated from the external environment, thereby preventing moisture and dust from entering the inside of the ring main unit through the circular hole 114.

[0041] If the host 2 detects that the temperature inside the ring main unit exceeds the set value, it controls the heat dissipation and dehumidification device 1 to operate in the manner described above. The heat conduction plate drives the air flow between the inside and outside of the ring main unit through the fins 102. By utilizing the high thermal conductivity of the heat conduction plate itself and the large heat exchange area formed by the radial grooves 1051, efficient heat exchange and heat dissipation between the inside and outside of the ring main unit are achieved, thereby reducing the temperature inside the unit.

[0042] If the host 2 detects that the humidity inside the ring main unit exceeds the set threshold and the ambient temperature is lower than the temperature inside the ring main unit, meeting the temperature and humidity conditions for condensation formation, the host controls the heat dissipation and dehumidification device 1 to operate in the manner described above. Because the heat conduction plate is made of a highly thermally conductive metal material, the heat exchange response speed is fast, and its surface temperature will be lower than that of other components inside the ring main unit, becoming the carrier for preferential attachment of condensation. This causes the water vapor inside the ring main unit to condense only on the surface of the heat conduction plate. After the condensation is formed, it is quickly thrown off the plate surface under the centrifugal force generated by the rotation of the heat conduction plate and flows into the annular water collection tank 112. Finally, it is discharged in a directional manner through the drain outlet 111 and the connected drain pipe, effectively reducing the humidity inside the ring main unit and preventing condensation from forming on core parts such as components and cable joints inside the ring main unit. Because the heat transfer plate has excellent heat exchange performance, it can promote the rapid formation of condensation and improve dehumidification efficiency. The grooves 1051 on the surface of the heat transfer plate extend radially. Under the action of centrifugal force, the condensation can move quickly to the outer edge of the plate along the grooves 1051. This not only greatly shortens the condensation collection cycle, but also effectively prevents the condensation from remaining on the plate or dripping onto other components inside the cabinet. This achieves residue-free collection and discharge of condensate water, thus making this dehumidification method both energy-saving and efficient, ensuring a dry operating environment inside the ring main unit.

[0043] For example, when the weather is good and the ambient humidity and dust content are low, refer to Figure 8 As shown, when the heat dissipation and dehumidification device 1 is running, the power shaft 110 rotates in the second direction, the heat conduction plate maintains the second working position, and the ring main unit is connected to the outside through the circular hole 114. When the heat conduction plate rotates, the groove 1051 and the fins 102 generate centrifugal force on the air, driving the air inside the ring main unit to be discharged to the outside through the circular hole 114 and the ventilation gap. The outside air enters the cabinet through the natural ventilation hole of the ring main unit. Thus, heat dissipation and dehumidification can be achieved more quickly and efficiently through forced ventilation.

[0044] Generally, meteorological departments and third-party meteorological service platforms can provide regional real-time weather, ambient humidity, dust content, and other data, which the control system or monitoring platform can directly obtain through the network. In addition, corresponding monitoring devices can be installed outside the ring main unit to more accurately collect humidity and dust content data around the unit, thereby improving the precision of controlling the operation of the heat dissipation and dehumidification device 1.

[0045] In a specific embodiment, a collar 109 is fitted around the outer ring 106. The outer ring 106 and the collar 109 are rotatably engaged, allowing relative rotation but preventing axial movement. When the heat-conducting disk is in the first position, the collar 109 contacts and engages with the mounting plate 104. Thus, when the heat-conducting disk rotates synchronously with the power shaft 110 in the first position, the collar 109 provides a certain degree of support for the heat-conducting disk, improving the stability of the rotation. At the same time, a sealing gasket or sealing ring can be provided on the mating surfaces of the collar 109, the outer ring 106, and the mounting plate 104 to improve the sealing performance when sealing the circular hole 114.

[0046] In a specific embodiment, the heat-conducting plate 105 uses thin metal plates with high thermal conductivity such as copper and aluminum as the base material. The radially extending and radially distributed grooves 1051 on the plate 105 are manufactured by an integrated pressing molding process, so that the plate 105 forms an integral, seamless structure. This design not only takes advantage of the excellent thermal conductivity of copper and aluminum base materials to significantly improve the heat exchange efficiency of the plate 105 and ensure the heat exchange effect during temperature and humidity control, but also enhances the structural stability and mechanical strength of the plate 105 through the integral molding structure. It can withstand the centrifugal force during high-speed rotation and avoid problems such as loose connection and structural deformation caused by the separate design of the grooves and the plate. At the same time, it keeps the heat exchange surface of the plate 105 continuous and intact, further optimizing the continuity and uniformity of heat exchange.

[0047] In a specific embodiment, the annular water collection trough 112 is made of bent profiles; the annular water collection trough 112 can be made of profiles with different cross-sectional shapes according to the installation direction of the heat dissipation and dehumidification device 1, so as to ensure that when the heat dissipation and dehumidification device 1 is running, the condensation thrown out by the heat conduction plate by centrifugal force can fall into the groove cavity 1121 of the annular water collection trough 112, and flow naturally along the groove cavity 1121 to the drain outlet 111, so as to realize the smooth discharge of dew.

[0048] In a specific implementation, the detection unit 3 is equipped with several temperature and humidity sensors. These sensors are distributed throughout different compartments inside the ring main unit, enabling independent and real-time detection of the temperature and humidity parameters of each compartment, and feeding back the temperature and humidity data of each compartment to the host unit 2. Correspondingly, multiple heat dissipation and dehumidification devices 1 are also configured, installed on the walls of different compartments of the ring main unit, forming a corresponding control relationship with the compartments. Based on the above arrangement, this intelligent monitoring device for the ring main unit can perform targeted independent temperature and humidity control of different compartments according to the actual temperature and humidity conditions of each compartment, realizing refined control of heat dissipation and dehumidification of each compartment of the ring main unit, and adapting to the differentiated operating environment requirements of multiple compartments of the ring main unit.

[0049] Furthermore, the detection unit 3 is also equipped with temperature and humidity sensors arranged outside the ring main unit to collect temperature and humidity data of the external environment in real time and transmit them to the host 2. The host 2 compares and analyzes the temperature and humidity data inside and outside the ring main unit in real time, and uses this as one of the core control bases to accurately control the operation mode and start / stop status of each heat dissipation and dehumidification device 1, thereby improving the rationality and adaptability of heat dissipation and dehumidification control.

[0050] like Figure 9 , Figure 10 As shown, in a specific embodiment, a protective cover 116 is fixedly installed on the side of the mounting plate 104 facing the motor device 101. The protective cover 116 completely covers the motor device 101, providing protection for it. Meanwhile, the protective cover 116 has ventilation structures 115 on its walls, such as arrayed ventilation holes or louvered vents, to ensure the heat exchange performance of the heat dissipation and dehumidification device 1.

[0051] Furthermore, such as Figure 10 As shown, the host unit 2 is fixedly installed inside the protective cover 116 via the bracket 103. The connection line 118 between the host unit 2 and the detection unit 3 is sealed and passed into the ring main unit through the pre-set wire hole 117 on the mounting plate 104, achieving a neat arrangement and sealed protection of the connection line 118. This installation method allows the host unit 2 to be arranged entirely outside the ring main unit, without occupying the limited installation space inside the ring main unit. This avoids spatial interference between the host unit 2 and the internal components of the ring main unit, significantly reduces the difficulty of intelligent transformation of existing ring main units, and is more suitable for intelligent upgrade projects of existing ring main units. At the same time, it facilitates on-site inspection and debugging of the host unit 2 by maintenance personnel.

Claims

1. A ring main unit intelligent monitoring device, comprising a host, a detection unit, and a heat dissipation and dehumidification device, wherein the host has a built-in control system and a transmission module, characterized in that: The heat dissipation and dehumidification device includes a mounting plate, a heat-conducting plate, and a motor. A circular hole is formed on the mounting plate, and an annular water collection trough is fixedly connected to one side of the mounting plate, with a drain outlet in the annular water collection trough. The motor is fixed to the other side of the mounting plate, and its drive shaft has a threaded section with limiting parts at both ends. The heat-conducting plate consists of a plate body, an outer ring, and a threaded sleeve. The plate body is a thin-shell structure made of thermally conductive material, with several radially extending and radially distributed grooves. Fins are fixedly connected to the top of the grooves on both sides of the plate body, and the outer ring is fixed to the outer edge of the plate body. The threaded sleeve is fixedly connected to the plate body and threadedly engages with the threaded section of the drive shaft. When the threaded sleeve abuts against one limiting part, the outer ring extends into the circular hole with its two ends located on both sides of the mounting plate, and the heat-conducting plate seals the circular hole. When the threaded sleeve abuts against the other limiting part, the heat-conducting plate is located outside the circular hole, forming a ventilation gap between the heat-conducting plate and the circular hole. The control system adjusts the rotation direction of the drive shaft during motor operation based on real-time weather data and ambient humidity and dust content data.

2. The intelligent monitoring device for ring main units as described in claim 1, characterized in that: The outer ring is fitted with a collar that rotates with it. When the heat transfer plate is in the first position, the collar contacts and engages with the mounting plate.

3. The intelligent monitoring device for ring main units as described in claim 2, characterized in that: A sealing gasket or sealing ring is provided on the mating surface of the collar, the outer ring, and the mounting plate.

4. The intelligent monitoring device for ring main units as described in claim 1, characterized in that: The heat-conducting plate is made of thermally conductive metal sheet as the base material, and the groove structure is manufactured by an integrated pressing and molding process.

5. The intelligent monitoring device for ring main units as described in claim 1, characterized in that: The mounting plate covers the pre-reserved mounting opening on the ring main unit, and the mounting plate is sealed and fixed to the wall of the ring main unit; the motor device is located outside the ring main unit, the annular water collection tank is located inside the ring main unit, and the drain outlet of the annular water collection tank is connected to a drain pipe.

6. The intelligent monitoring device for ring main units as described in claim 1, characterized in that: The annular water collection trough is made of bent profile.

7. The intelligent monitoring device for ring main units as described in claim 1, characterized in that: The detection unit is equipped with several temperature and humidity sensors, which are distributed in different compartments inside the ring main unit and feed back the temperature and humidity detection data of the corresponding compartments to the host; multiple heat dissipation and dehumidification devices are configured and installed on the walls of different compartments of the ring main unit.

8. The intelligent monitoring device for ring main units as described in claim 1, characterized in that: The detection unit is equipped with temperature and humidity sensors located outside the ring main unit to feed back temperature and humidity data of the external environment to the host.

9. The intelligent monitoring device for ring main units as described in claim 1, characterized in that: A protective cover is fixedly installed on the mounting plate, which covers the motor device inside. The wall of the protective cover has a ventilation structure.

10. The intelligent monitoring device for ring main units as described in claim 9, characterized in that: The host is fixedly installed inside the protective cover, and the connection line between the host and the detection unit is sealed and passed into the ring network cabinet through the pre-set wire hole on the mounting plate.

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