Anti-condensation ring main unit device
Patent Information
- Application Number
- CN202522047682.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-23
- Publication Date
- 2026-09-04
- Estimated Expiration
- 2035-09-23
AI Technical Summary
[0004]然而，环网柜内部因电气设备运行会产生一定热量，而外部环境温度波动（如昼夜温差、季节交替）或高湿天气（如梅雨季节、暴雨天气）时，柜内湿热空气与相对低温的柜体壁面、观察窗内壁接触，当空气温度降至露点以下，水汽便会在上述表面凝结形成凝露，凝露附着于柜体金属内壁时，会加速柜体金属部件的腐蚀，缩短设备使用寿命
（1）本申请通过在制冷器降温的作用下，使水汽在金属板外壁液化，并从排液孔向外进行转移排出，有效减少下柜体内的湿气，避免凝露在下柜体和观察窗内壁的产生，保障环网柜内电气设备的正常运行，而湿度传感器可以实时监测下柜体内的温湿度变化，提升对湿气液化的灵活性。
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Figure CN224721406U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of power distribution equipment technology, and more specifically, to a ring main unit device for preventing condensation. Background Technology
[0002] Ring main unit originally refers to the switch cabinets for incoming and outgoing lines used in ring distribution networks. They are generally made of metal materials such as stainless steel or cold-rolled steel plates and have good mechanical strength, protection performance and electromagnetic shielding effect.
[0003] Ring main units are mainly used in ring distribution networks. The power supply trunk line forms a closed loop, and the power supply is supplied to the ring trunk line and then distributed to the outside through high-voltage switches. Each distribution branch can draw power from the trunk lines on the left and right sides. When one trunk line fails, power can continue to be obtained from the other side, which improves the reliability of power supply.
[0004] However, the operation of electrical equipment inside the ring main unit generates a certain amount of heat. When the external ambient temperature fluctuates (such as the temperature difference between day and night, seasonal changes) or there is high humidity (such as the plum rain season, heavy rain), the hot and humid air inside the cabinet comes into contact with the relatively low temperature cabinet walls and the inner wall of the observation window. When the air temperature drops below the dew point, water vapor will condense on the above surfaces to form condensation. When the condensation adheres to the metal inner wall of the cabinet, it will accelerate the corrosion of the metal parts of the cabinet and shorten the service life of the equipment.
[0005] In view of this, we propose a ring main unit device to prevent condensation. Summary of the Invention
[0006] In order to overcome the shortcomings of the prior art and solve at least one of the technical problems mentioned in the background art, this application proposes an anti-condensation ring main unit device.
[0007] This application provides an anti-condensation ring main unit device, comprising: The lower cabinet has a drain hole inside, a metal plate is fixed to the inner wall of the lower cabinet, the metal plate is positioned directly above the drain hole, and a humidity sensor is installed inside the lower cabinet. A cooler is installed on the outer wall of the lower cabinet. A cooling fan is installed inside the cooler. The cooling fan is located near the metal plate and is used to transfer the cold air generated by the cooler to the metal plate. The sealing mechanism is located inside the lower cabinet. The lower cabinet has a control module installed on its inner wall, and the humidity sensor and the cooler are electrically connected to the control module. The sealing mechanism includes a baffle that slides along the bottom wall of the lower cabinet. The baffle is driven to slide by an external force and is located near the drain hole to open or block the drain hole.
[0008] As an optional solution to the technical solution of this application, the sealing mechanism further includes a connecting frame fixed on both sides of the baffle plate, two electric push rods installed on the inner wall of the lower cabinet, the output shaft of the electric push rods being fixedly connected to the connecting frame, the two electric push rods being electrically connected to the control module, and the two electric push rods being synchronously started with the cooler.
[0009] As an optional solution to the technical solution of this application, the inner wall of the lower cabinet is fixedly connected with multiple mounting brackets by bolts. The ends of the multiple mounting brackets are fixedly connected to fixed frames. The inner wall of the fixed frames is fixedly connected to two support brackets. The support brackets are rotatably connected to a rotating shaft. The outer wall of the rotating shaft is fixedly connected to a rotating fan. The rotating fan is set on the side close to the liquefied surface of the metal plate and is used to transport the humid and hot air inside the lower cabinet to the outer wall of the metal plate. The rotating fan is driven to rotate by external force.
[0010] As an optional solution to the technical solution of this application, the fan blades of the rotating fan and the cooling fan are arranged in opposite directions, a square locking block is fixedly connected to the end of the rotating shaft, a connecting rod is fixedly connected to the rotating shaft of the cooling fan, the connecting rod is rotatably connected to the metal plate, a slot is opened at the end of the connecting rod, and the slot and the square locking block are inserted into each other.
[0011] As an optional solution to the technical solution of this application, the outer wall of the metal plate is fixed with two guide plates, the outer wall of the guide plates is fixed with an extension plate, the lower end of the guide plates is inclined, and the inclined end of the guide plates is located near the drain hole.
[0012] As an optional solution to the technical solution in this application, the outer wall of the metal plate is coated with a hydrophobic coating, which is located near the rotating fan.
[0013] As an optional solution to the technical solution in this application, the lower cabinet body is rotatably connected to a door frame, an observation window is installed inside the door frame, the upper cabinet body is fixedly connected to the top of the lower cabinet body, and mounting legs are fixedly connected to the bottom corners of the lower cabinet body.
[0014] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages: (1) This application uses the cooling effect of the refrigerator to liquefy water vapor on the outer wall of the metal plate and transfer it outward from the drain hole, which effectively reduces the moisture in the lower cabinet and avoids condensation on the lower cabinet and the inner wall of the observation window, thus ensuring the normal operation of the electrical equipment in the ring network cabinet. The humidity sensor can monitor the temperature and humidity changes in the lower cabinet in real time, improving the flexibility of moisture liquefaction.
[0015] (2) This application uses the airflow generated when the fan rotates to transport the humid and hot air inside the lower cabinet to the outer wall of the metal plate, which accelerates the generation of condensation and improves the efficiency of condensation treatment. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of the anti-condensation ring main unit device disclosed in a preferred embodiment of this application; Figure 2 This is a cross-sectional structural schematic diagram of the anti-condensation ring main unit device disclosed in a preferred embodiment of this application; Figure 3 This is a schematic diagram of the fixing frame structure of the anti-condensation ring main unit device disclosed in a preferred embodiment of this application; Figure 4 This is a schematic diagram of the sealing mechanism structure of the anti-condensation ring main unit device disclosed in a preferred embodiment of this application; Figure 5 This is a schematic diagram of the metal plate structure of the anti-condensation ring main unit device disclosed in a preferred embodiment of this application; The following are the labels in the diagram: 1. Lower cabinet; 11. Drain hole; 12. Metal plate; 121. Guide plate; 122. Extension plate; 13. Humidity sensor; 14. Door frame; 15. Observation window; 16. Upper cabinet; 17. Mounting leg; 2. Refrigerator; 21. Refrigeration fan; 22. Connecting rod; 23. Slot; 3. Sealing mechanism; 31. Baffle plate; 32. Connecting frame; 33. Electric push rod; 4. Mounting bracket; 41. Fixing frame; 42. Support frame; 43. Rotating shaft; 44. Rotating fan; 45. Square block. Detailed Implementation
[0017] The present application will be further described in detail below with reference to the accompanying drawings.
[0018] Reference Figures 1-5This application discloses an anti-condensation ring main unit device, comprising a lower cabinet 1, a cooler 2, and a sealing mechanism 3. The lower cabinet 1 has a drain hole 11 inside, and a metal plate 12 is fixed to the inner wall of the lower cabinet 1, positioned directly above the drain hole 11. A humidity sensor 13 is installed inside the lower cabinet 1. A cooling fan 21 is installed inside the cooler 2, positioned near the metal plate 12, to transfer the cold air generated by the cooler 2 towards the metal plate 12. A control module is installed on the inner wall of the lower cabinet 1, and both the humidity sensor 13 and the cooler 2 are electrically connected to the control module. The sealing mechanism 3 includes a... A sliding baffle 31 is mounted on the bottom wall of the lower cabinet 1. The baffle 31 is driven by an external force to slide. The baffle 31 is located near the drain hole 11 and is used to open or block the drain hole 11. Two guide plates 121 are fixed to the outer wall of the metal plate 12. An extension plate 122 is fixed to the outer wall of the guide plate 121. The lower end of the guide plate 121 is inclined and is located near the drain hole 11. The outer wall of the metal plate 12 is coated with a hydrophobic coating. The hydrophobic coating is located on the side near the rotating fan 44. A door frame 14 is rotatably connected to the outer wall of the lower cabinet 1. An observation window 15 is installed inside the door frame 14. An upper cabinet 16 is fixed to the top of the lower cabinet 1. Mounting legs 17 are fixedly connected to the bottom corners of the lower cabinet 1. First, the mounting legs 17 need to be installed in the designated working area. The humidity sensor 13 (which measures humidity by absorbing moisture from the air using a moisture-sensitive material, causing a change in resistance) continuously monitors the temperature and humidity inside the cabinet 1. When the temperature and humidity reach the threshold where condensation is likely to occur, the humidity sensor 13 transmits an electrical signal to the control module. Upon receiving the signal, the control module starts the cooler 2, and the cooler 2 begins to work. The cooling fan 21 inside the cooler rotates accordingly. The rotation of the cooling fan 21 generates airflow, continuously transferring the cold air generated by the cooler 2 towards the metal plate 12. This lowers the temperature of the surface area of the metal plate 12. When the humid and hot air comes into contact with the cooler outer wall of the metal plate 12, the water vapor condenses and forms condensation. Because the outer wall of the metal plate 12 is coated with a hydrophobic coating... The condensation, under its own weight and the action of the hydrophobic coating, flows along the surface of the metal plate 12, then along the guide plate 121 and the extension plate 122, and finally flows to the drain hole 11. Under the cooling effect of the cooler 2, the water vapor liquefies on the outer wall of the metal plate 12 and is transferred and discharged outward from the drain hole 11, effectively reducing the moisture in the lower cabinet 1 and preventing condensation from forming on the inner wall of the lower cabinet 1 and the observation window 15, ensuring the normal operation of the electrical equipment in the ring main unit. The humidity sensor 13 can monitor the temperature and humidity changes in the lower cabinet 1 in real time, improving the flexibility of moisture liquefaction. The guide plate 121 and the extension plate 122 can guide the condensation to flow along a specific path to the drain hole 11. Combined with the hydrophobic coating, it can reduce the adhesion between the condensation and the surface of the metal plate 12.
[0019] Reference Figures 1-5 The sealing mechanism 3 also includes a connecting frame 32 fixed on both sides of the baffle plate 31. Two electric push rods 33 are installed on the inner wall of the lower cabinet 1. The output shaft of the electric push rod 33 is fixedly connected to the connecting frame 32. The two electric push rods 33 are electrically connected to the control module, and the two electric push rods 33 are started synchronously with the cooler 2. When condensation accumulates to a certain level and needs to be discharged, the control module sends a start signal to the electric actuator 33. The output shaft of the electric actuator 33 extends, pushing the connecting frame 32 fixedly connected to it. The connecting frame 32 drives the baffle plate 31 to slide along the bottom wall of the lower cabinet 1, thereby opening the drain hole 11. The condensation can then be discharged smoothly from the drain hole 11. Furthermore, the electric actuator 33 and the cooler 2 start synchronously, which ensures that while the cooler 2 is producing condensation, the drain hole 11 can be opened in time for drainage, preventing condensation from accumulating inside the cabinet. The connecting frame 32 connects the baffle plate 31 to the output shaft of the electric actuator 33, enabling the electric actuator 33 to stably drive the baffle plate 31 to slide. The electric actuator 33 is electrically connected to the control module and starts synchronously with the cooler 2, ensuring the synchronicity of condensation generation and discharge, effectively preventing condensation accumulation.
[0020] Reference Figures 1-5 Multiple mounting brackets 4 are bolted to the inner wall of the lower cabinet 1. Each mounting bracket 4 has a fixed frame 41 at its end. Two support brackets 42 are fixed to the inner wall of the fixed frame 41. A rotating shaft 43 is rotatably connected inside each support bracket 42. A rotating fan 44 is fixed to the outer wall of the rotating shaft 43, positioned near the liquefied surface of the metal plate 12. The rotating fan 44 is used to transport the humid, hot air inside the lower cabinet 1 to the outer wall of the metal plate 12. The rotating fan 44 is driven to rotate by external force. The blades of the rotating fan 44 and the cooling fan 21 are arranged in opposite directions. A square locking block 45 is fixed to the end of the rotating shaft 43. A connecting rod 22 is fixed to the rotating shaft of the cooling fan 21. The connecting rod 22 is rotatably connected to the metal plate 12. A slot 23 is provided at the end of the connecting rod 22. The slot 23 and the square card block 45 are plug-in connected. Since the connecting rod 22 on the rotating shaft of the cooling fan 21 and the rotating shaft 43 of the rotating fan 44 are plugged in through the square card block 45 and the slot 23, when the cooling fan 21 rotates, it will drive the rotating shaft 43 to rotate, thereby causing the rotating fan 44 to rotate synchronously. The airflow generated by the rotating fan 44 will transport the humid and hot air in the lower cabinet 1 to the outer wall of the metal plate 12. The airflow generated by the rotating fan 44 will transport the humid and hot air in the lower cabinet 1 to the outer wall of the metal plate 12, which will accelerate the formation of condensation and improve the efficiency of condensation treatment. The plug-in connection between the square card block 45 and the slot 23 allows the cooling fan 21 to drive the rotating fan 44 to rotate synchronously, reducing the need for a power source and saving costs.
[0021] In summary, when using the anti-condensation ring main unit device disclosed in this application embodiment, the mounting legs 17 need to be installed in the designated working area first. The humidity sensor 13 continuously monitors the air temperature and humidity inside the cabinet 1. When the temperature and humidity reach the threshold that easily causes condensation, the humidity sensor 13 transmits an electrical signal to the control module. After receiving the signal, the control module starts the cooler 2. The cooler 2 begins to work, and its internal cooling fan 21 rotates accordingly. The rotation of the cooling fan 21 generates airflow, continuously transferring the cold air generated by the cooler 2 to the metal plate 12 side, thus lowering the temperature of the surface area of the metal plate 12. When the humid and hot air comes into contact with the cooler outer wall of the metal plate 12, the water vapor condenses and forms condensation. Because the outer wall of the metal plate 12 is coated with a hydrophobic coating, the condensation flows along the surface of the metal plate 12 under its own gravity and the action of the hydrophobic coating, and then along the guide plate 121 and the extension... The condensate flows from the extension plate 122 to the drain hole 11. When the condensate accumulates to a certain extent and needs to be drained, the control module sends a start signal to the electric push rod 33. The output shaft of the electric push rod 33 begins to extend, pushing the connecting frame 32 that is fixedly connected to it. The connecting frame 32 drives the baffle plate 31 to slide along the bottom wall of the lower cabinet 1, thereby opening the drain hole 11. The condensate can then be smoothly discharged from the drain hole 11. Furthermore, the electric push rod 33 and the cooler 2 start synchronously, which ensures that while the cooler 2 is working and generating condensate, the drain hole 11 can be opened in time to perform the draining operation, preventing the condensate from accumulating inside the cabinet. Since the connecting rod 22 on the rotating shaft of the cooling fan 21 and the rotating shaft 43 of the rotating fan 44 are connected by the square card block 45 and the card slot 23, when the cooling fan 21 rotates, it will drive the rotating shaft 43 to rotate, thereby causing the rotating fan 44 to rotate synchronously. The airflow generated by the rotation of the rotating fan 44 will transport the humid and hot air inside the lower cabinet 1 toward the outer wall of the metal plate 12.
Claims
1. A ring main unit device for preventing condensation, characterized in that, Include: The lower cabinet (1) has a drain hole (11) inside. A metal plate (12) is fixed to the inner wall of the lower cabinet (1). The metal plate (12) is located directly above the drain hole (11). A humidity sensor (13) is installed inside the lower cabinet (1). A cooler (2) is installed on the outer wall of the lower cabinet (1). A cooling fan (21) is installed inside the cooler (2). The cooling fan (21) is set on the side close to the metal plate (12) to transfer the cold air generated by the cooler (2) to the side of the metal plate (12). The sealing mechanism (3) is installed inside the lower cabinet (1); The lower cabinet (1) is equipped with a control module on its inner wall. The humidity sensor (13) and the cooler (2) are electrically connected to the control module. The sealing mechanism (3) includes a baffle (31) that slides along the bottom wall of the lower cabinet (1). The baffle (31) is driven by an external force to slide. The baffle (31) is located near the drain hole (11) and is used to open or block the drain hole (11).
2. The anti-condensation ring main unit device according to claim 1, characterized in that: The sealing mechanism (3) also includes a connecting frame (32) fixed on both sides of the baffle plate (31). Two electric push rods (33) are installed on the inner wall of the lower cabinet (1). The output shaft of the electric push rod (33) is fixedly connected to the connecting frame (32). The two electric push rods (33) are electrically connected to the control module, and the two electric push rods (33) are started synchronously with the cooler (2).
3. The anti-condensation ring main unit device according to claim 1, characterized in that: The inner wall of the lower cabinet (1) is fixedly connected with multiple mounting brackets (4) by bolts. The ends of the multiple mounting brackets (4) are fixed with fixed frames (41). The inner wall of the fixed frame (41) is fixed with two support brackets (42). The support brackets (42) are rotatably connected with a rotating shaft (43). The outer wall of the rotating shaft (43) is fixed with a rotating fan (44). The rotating fan (44) is set on the side close to the liquefied surface of the metal plate (12) and is used to transport the humid hot air in the lower cabinet (1) to the outer wall of the metal plate (12). The rotating fan (44) is driven to rotate by external force.
4. The anti-condensation ring main unit device according to claim 3, characterized in that: The blades of the rotating fan (44) and the cooling fan (21) are arranged in opposite directions. A square locking block (45) is fixed to the end of the rotating shaft (43). A connecting rod (22) is fixed to the rotating shaft of the cooling fan (21). The connecting rod (22) is rotatably connected to the metal plate (12). A slot (23) is opened at the end of the connecting rod (22). The slot (23) and the square locking block (45) are inserted into each other.
5. The anti-condensation ring main unit device according to claim 1, characterized in that: Two guide plates (121) are fixed to the outer wall of the metal plate (12). An extension plate (122) is fixed to the outer wall of the guide plate (121). The lower end of the guide plate (121) is inclined. The inclined end of the guide plate (121) is located near the drain hole (11).
6. The anti-condensation ring main unit device according to claim 1, characterized in that: The outer wall of the metal plate (12) is coated with a hydrophobic coating, which is applied to the side near the rotating fan (44).
7. The anti-condensation ring main unit device according to claim 1, characterized in that: The lower cabinet (1) is rotatably connected to a door frame (14), and an observation window (15) is installed inside the door frame (14). The upper cabinet (16) is fixedly connected to the top of the lower cabinet (1), and mounting legs (17) are fixedly connected to the bottom corners of the lower cabinet (1).