Ring main unit with moisture-proof mechanism

Abstract

The invention discloses a ring main unit with a moisture-proof mechanism. The ring main unit comprises a base, a side plate, a panel, a heat conduction cover plate, a drying assembly, a heat dissipation assembly, a heat dissipation opening, a display screen, a voltmeter, an ampere meter, an observation window and a circuit breaker. The other end of the ventilation pipe is fixedly connected with a second fan, and the inner wall of the ventilation pipe is fixedly connected with active microporous silica gel; a rotary drying and dehumidifying structure is designed, when air containing moisture passes through active microporous silica gel, the active microporous silica gel can rapidly capture and adsorb water molecules in the air due to the strong adsorption capacity, the air subjected to adsorption treatment becomes dry and enters the ring main unit, an ideal operation environment is provided for equipment, and the service life of the ring main unit is prolonged. Meanwhile, in order to maintain the continuous and efficient operation of the dehumidification structure, the drying part can alternately enter a regeneration area, the active microporous silica gel is heated through the heating structure, water molecules adsorbed on the silica gel are heated and evaporated, and then regeneration of the silica gel is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of ring main units, and specifically to a ring main unit with a moisture-proof mechanism. Background Art

[0002] A ring main unit, also known as a ring network power supply unit, is an electrical device that installs high-voltage switchgear in a metal or non-metal insulated cabinet or forms a assembled sectionalized ring network power supply unit. Its core part adopts a load switch and a fuse, and has the advantages of simple structure, small volume, low price, improved power supply parameters and performance, and power supply safety. Ring main units are widely used in urban residential areas, high-rise buildings, large public buildings, factories and enterprises, etc. as distribution equipment for medium-voltage power grids.

[0003] Existing ring main units have the following defects: First, they are easily affected by humid environments and have poor moisture-proof ability. As a key device for power distribution and control, the internal electrical components and insulating materials of the ring main unit are extremely sensitive to the humidity of the environment. In a humid environment, the insulation performance of the ring main unit may drop significantly, which will not only increase the risk of equipment failure, but also may cause safety hazards such as short circuits and electric leakage. In addition, a continuous humid environment may also cause corrosion of metal components and shorten the service life of the equipment; Second, with the continuous growth of power demand, the load carried by the ring main unit is also increasing continuously, which puts higher requirements on the heat dissipation ability of the equipment. Existing ring main units often have problems such as unsmooth heat dissipation channels and insufficient heat dissipation area in design, resulting in overheating of the equipment during long-term high-load operation. Overheating will not only accelerate equipment aging, but also may cause serious consequences such as failure of insulating materials and damage to electrical components; Third, there is a lack of comprehensive monitoring and real-time control functions for temperature and humidity, making it difficult for the ring main unit to cope with temperature and humidity changes. Once the environmental conditions exceed the safe range designed for the equipment, it is impossible to quickly take measures to adjust, resulting in a decline in equipment performance and even possible failures. Summary of the Invention

[0004] The purpose of the present invention is to provide a ring main unit with a moisture-proof mechanism to solve the problems raised in the above background art.

[0005] To achieve the above object, the present invention provides the following technical solutions: A ring main unit with a moisture-proof mechanism, including a base, on which a drying component is provided. The drying component is composed of a back plate, a bracket, a stepping motor, a turntable, a first fan, a ventilation pipe, activated microporous silica gel, a second fan, a sleeve, a fixing frame and a heating wire. The back plate is fixedly connected to the base, a bracket is fixedly connected to an outer wall of one side of the back plate, a stepping motor is fixedly connected to the bracket, an output shaft is fixedly connected to an output end of the stepping motor, the other end of the output shaft is fixedly connected to the turntable, and the turntable is rotatably connected to the back plate. The first fan is fixedly connected to the turntable, the ventilation pipe is fixedly connected to the first fan, the second fan is fixedly connected to the other end of the ventilation pipe, the activated microporous silica gel is fixedly connected to an inner wall of the ventilation pipe, a heat conduction cover plate is fixedly connected to the back plate, and a heat dissipation component is provided on the heat conduction cover plate.

[0006] As a further technical solution of the present invention, both ends of the bracket are fixedly connected with sleeves, and the sleeves are arranged on one side of the second fan. A fixing frame is fixedly connected to an inner wall of the sleeve, and a heating wire is fixedly connected to the fixing frame.

[0007] As a further technical solution of the present invention, ventilation holes are fixedly connected to an outer wall of one side of the sleeve.

[0008] As a further technical solution of the present invention, the heat dissipation component is composed of an inner heat conduction seat, a first heat pipe, a heat collecting fin, an outer heat conduction seat, a second heat pipe, heat dissipation fins and a third fan. The inner heat conduction seat is fixedly connected to a lower surface of the heat conduction cover plate, the first heat pipe is fixedly connected to the inner heat conduction seat, and the heat collecting fin is fixedly connected to the first heat pipe.

[0009] As a further technical solution of the present invention, the outer heat conduction seat is fixedly connected to an upper surface of the heat conduction cover plate, the second heat pipe is fixedly connected to the outer heat conduction seat, the heat dissipation fins are fixedly connected to the second heat pipe, and the third fan is fixedly connected to an upper surface of the outer heat conduction seat.

[0010] As a further technical solution of the present invention, a side plate is fixedly connected to the base, and the side plate is fixedly connected to a lower surface of the heat conduction cover plate. A heat dissipation port is provided on the side plate, and a second sensor is fixedly connected to an outer wall of one side of the side plate.

[0011] As a further technical solution of the present invention, a circuit breaker is fixedly connected to an outer wall of one side of the back plate.

[0012] As a further technical solution of the present invention, a first sensor is fixedly connected to a lower surface of the inner heat conduction seat.

[0013] As a further technical solution of the present invention, a panel is fixedly connected to the base, and the panel is fixedly connected to a lower surface of the heat conduction cover plate. A display screen, a voltmeter and an ammeter are arranged on an outer wall of one side of the panel.

[0014] As a further technical solution of the present invention, an observation window is provided on one outer wall of the panel.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention is designed with a rotary drying and dehumidifying structure. When the moist air passes through the activated microporous silica gel, due to its strong adsorption capacity, the activated microporous silica gel will quickly capture and adsorb the water molecules in the air. The air after adsorption treatment becomes dry and enters the inside of the ring main unit, providing an ideal operating environment for the equipment. At the same time, in order to maintain the continuous and efficient operation of the dehumidifying structure, the drying components will rotate into the regeneration area, and the activated microporous silica gel is heated through the heating structure, so that the water molecules adsorbed on the silica gel are evaporated by heat, thereby realizing the regeneration of the silica gel. This cyclic process ensures that the silica gel always maintains a strong dehumidifying ability, providing a lasting and stable dry environment for the ring main unit; and it is designed with an efficient heat dissipation structure, which concentrates the heat through the internal heat collecting fins, completes the heat exchange through the internal and external heat pipes, and finally dissipates the heat efficiently through the fins, ensuring the normal temperature of the ring main unit; Based on the above structure, the temperature and humidity levels inside the ring main unit are monitored in real time through sensors. Once the environmental conditions exceed the preset safety range of the equipment, the system will automatically trigger the corresponding regulation mechanism, such as starting the dehumidifying rotation or enhancing the heat dissipation effect, to ensure that the ring main unit can maintain a normal operating state in various complex environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a three-dimensional structure schematic diagram of the present invention; Figure 2 is a front view structure schematic diagram of the present invention; Figure 3 is a side view structure schematic diagram of the present invention; Figure 4 is a three-dimensional structure schematic diagram of the present invention from another perspective; Figure 5 is a front view sectional structure schematic diagram of the present invention; Figure 6 is an internal structure schematic diagram of the present invention; Figure 7 is a three-dimensional sectional structure schematic diagram of the drying component of the present invention; Figure 8 is Figure 7 an enlarged structure schematic diagram of area A in

[0017] In the figure: 1, base; 2, side plate; 3, panel; 4, heat conduction cover plate; 5, drying assembly; 51, back plate; 52, bracket; 53, stepping motor; 54, output shaft; 55, turntable; 56, first fan; 57, ventilation pipe; 58, activated microporous silica gel; 59, second fan; 510, sleeve; 511, fixing frame; 512, heating wire; 513, ventilation hole; 6, heat dissipation assembly; 61, inner heat conduction base; 62, first heat pipe; 63, heat collecting fin; 64, outer heat conduction base; 65, second heat pipe; 66, heat dissipation fin; 67, third fan; 7, heat dissipation port; 8, display screen; 9, voltmeter; 10, ammeter; 11, observation window; 12, circuit breaker; 13, first inductor; 14, second inductor. Detailed implementation manner

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0019] Please refer to the attached Figure 1 - attached Figure 8, an embodiment provided by the present invention: a ring main unit with a moisture-proof mechanism, including a base 1, on which a drying component 5 is arranged. The drying component 5 is composed of a back plate 51, a bracket 52, a stepping motor 53, a turntable 55, a first fan 56, a ventilation pipe 57, activated microporous silica gel 58, a second fan 59, a sleeve 510, a fixing frame 511 and a heating wire 512. The back plate 51 is fixedly connected to the base 1, a bracket 52 is fixedly connected to an outer wall of one side of the back plate 51, a stepping motor 53 is fixedly connected to the bracket 52, an output shaft 54 is fixedly connected to an output end of the stepping motor 53, the other end of the output shaft 54 is fixedly connected to a turntable 55, and the turntable 55 is rotatably connected to the back plate 51. A first fan 56 is fixedly connected to the turntable 55, a ventilation pipe 57 is fixedly connected to the first fan 56, the other end of the ventilation pipe 57 is fixedly connected to a second fan 59, and activated microporous silica gel 58 is fixedly connected to an inner wall of the ventilation pipe 57. A heat-conducting cover plate 4 is fixedly connected to the back plate 51, and a heat dissipation component 6 is arranged on the heat-conducting cover plate 4; both ends of the bracket 52 are fixedly connected to sleeves 510, and the sleeves 510 are arranged on one side of the second fan 59. A fixing frame 511 is fixedly connected to an inner wall of the sleeve 510, and a heating wire 512 is fixedly connected to the fixing frame 511. The heating wire 512 is used to heat air to form a hot air flow to heat the activated microporous silica gel 58; a ventilation hole 513 is fixedly connected to an outer wall of one side of the sleeve 510, and the ventilation hole 513 is used to realize air flow; the heat dissipation component 6 is composed of an inner heat-conducting seat 61, a first heat pipe 62, a heat collecting fin 63, an outer heat-conducting seat 64, a second heat pipe 65, heat dissipation fins 66 and a third fan 67. The inner heat-conducting seat 61 is fixedly connected to a lower surface of the heat-conducting cover plate 4, a first heat pipe 62 is fixedly connected to the inner heat-conducting seat 61, and a heat collecting fin 63 is fixedly connected to the first heat pipe 62; the outer heat-conducting seat 64 is fixedly connected to an upper surface of the heat-conducting cover plate 4, a second heat pipe 65 is fixedly connected to the outer heat-conducting seat 64, heat dissipation fins 66 are fixedly connected to the second heat pipe 65, and a third fan 67 is fixedly connected to an upper surface of the outer heat-conducting seat 64. The heat collecting fin 63 concentrates the heat inside the ring main unit and conducts it to the inner heat-conducting seat 61 through the first heat pipe 62. The inner heat-conducting seat 61 conducts the heat to the outer heat-conducting seat 64 through the heat-conducting cover plate 4. The outer heat-conducting seat 64 conducts the heat to the heat dissipation fins 66 through the second heat pipe 65, and the third fan 67 takes away the heat on the heat dissipation fins 66 to realize the heat exchange inside and outside the ring main unit; a side plate 2 is fixedly connected to the base 1, and the side plate 2 is fixedly connected to a lower surface of the heat-conducting cover plate 4. A heat dissipation port 7 is opened on the side plate 2, and a second inductor 14 is fixedly connected to an outer wall of one side of the side plate 2. The heat dissipation port 7 is used for air flow and conventional heat dissipation; a circuit breaker 12 is fixedly connected to an outer wall of one side of the back plate 51, and the circuit breaker 12 is used to quickly cut off the current when a fault occurs in the circuit to protect the circuit and equipment from damage;A first sensor 13 is fixedly connected to the lower surface of the internal heat conduction base 61. The first sensor 13 and the second sensor 14 are used to monitor the temperature and humidity conditions inside the ring main unit in real time. A panel 3 is fixedly connected to the base 1, and the panel 3 is fixedly connected to the lower surface of the heat conduction cover plate 4. A display screen 8, a voltmeter 9, and an ammeter 10 are arranged on one outer wall of the panel 3. The voltmeter 9 is used to display the voltage value on the bus or a specific circuit in the ring main unit, and the ammeter 10 is used to measure and display the magnitude of the current flowing through a specific circuit in the ring main unit. An observation window 11 is arranged on one outer wall of the panel 3. The observation window 11 is used to directly observe the states of key components such as switches, indicator lights, and buses inside the cabinet without opening the ring main unit door.

[0020] Working principle: The main body of the ring main unit of the present invention is composed of a base 1, side plates 2, a panel 3, and a heat-conducting cover plate 4. The display screen 8 on the panel 3 is used to display the temperature and humidity data inside the ring main unit, and the temperature and humidity safety thresholds can be preset. During operation, the temperature and humidity conditions inside the ring main unit are monitored in real time through the first sensor 13 and the second sensor 14. When the temperature or humidity exceeds the preset safety threshold, the corresponding regulation mechanism will be automatically triggered to start the drying component 5 or the heat dissipation component 6 for drying and dehumidifying and enhancing heat dissipation. Specifically, the first fan 56 and the second fan 59 on the back plate 51 blow air into the ring main unit. During this process, the air passes through the ventilation pipe 57. When the humid air passes through the activated microporous silica gel 58, due to its strong adsorption capacity, the activated microporous silica gel 58 will quickly capture and adsorb the water molecules in the air. The air after adsorption treatment becomes dry and enters the inside of the ring main unit, realizing the dehumidification inside the ring main unit. When the dehumidification components on the upper and lower sides operate for a certain period of time, the stepping motor 53 of the bracket 52 drives the turntable 55 to rotate 90 degrees through the output shaft 54, and the dehumidification components on the upper and lower sides enter the regeneration area on one side of the sleeve 510. The heating wire 512 on the fixed frame 511 in the sleeve 510 heats the air, and the hot air flows through the ventilation holes 513 to heat the activated microporous silica gel 58, so that the water molecules adsorbed on the silica gel are evaporated by heat, thereby realizing the regeneration of the silica gel. This cyclic process ensures that the silica gel always maintains a strong dehumidification ability, providing a persistent and stable dry environment for the ring main unit. The heat collecting sheet 63 inside collects the heat inside the ring main unit and conducts it to the inner heat-conducting seat 61 through the first heat pipe 62. The inner heat-conducting seat 61 conducts the heat to the outer heat-conducting seat 64 through the heat-conducting cover plate 4. The outer heat-conducting seat 64 conducts the heat to the heat dissipation fins 66 through the second heat pipe 65, and the third fan 67 takes away the heat on the heat dissipation fins 66, realizing the heat exchange inside and outside the ring main unit. Among them, the heat dissipation port 7 is used for air flow and conventional heat dissipation. The voltmeter 9 is used to display the voltage value on the bus bar or a specific circuit in the ring main unit. The ammeter 10 is used to measure and display the magnitude of the current flowing through a specific circuit in the ring main unit. The observation window 11 is used to directly observe the states of key components such as switches, indicator lights, and bus bars inside the cabinet without opening the ring main unit door. The circuit breaker 12 is used to quickly cut off the current when a fault occurs in the circuit to protect the circuit and equipment from damage.

[0021] It is obvious to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, in all respects, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes that fall within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present invention. Any reference signs in the claims should not be construed as limiting the claims involved.

Claims

1. A ring main unit with a moisture-proof mechanism, comprising a base (1), characterized in that: A drying component (5) is provided on the base (1). The drying component (5) is composed of a back plate (51), a bracket (52), a stepping motor (53), a turntable (55), a first fan (56), a ventilation pipe (57), activated microporous silica gel (58), a second fan (59), a sleeve (510), a fixing bracket (511), and a heating wire (512). The back plate (51) is fixedly connected to the base (1). A bracket (52) is fixedly connected to an outer wall of one side of the back plate (51). A stepping motor (53) is fixedly connected to the bracket (52). An output shaft (54) is fixedly connected to an output end of the stepping motor (53). The other end of the output shaft (54) is fixedly connected to a turntable (55), and the turntable (55) is rotatably connected to the back plate (51). A first fan (56) is fixedly connected to the turntable (55). A ventilation pipe (57) is fixedly connected to the first fan (56). The other end of the ventilation pipe (57) is fixedly connected to a second fan (59). Activated microporous silica gel (58) is fixedly connected to an inner wall of the ventilation pipe (57). A heat-conducting cover plate (4) is fixedly connected to the back plate (51), and a heat dissipation component (6) is provided on the heat-conducting cover plate (4).

2. The ring main unit with a moisture-proof mechanism according to claim 1, characterized in that: Both ends of the bracket (52) are fixedly connected to a sleeve (510), and the sleeve (510) is arranged on one side of the second fan (59). A fixing bracket (511) is fixedly connected to an inner wall of the sleeve (510), and a heating wire (512) is fixedly connected to the fixing bracket (511).

3. The ring main unit with a moisture-proof mechanism according to claim 2, characterized in that: A ventilation hole (513) is fixedly connected to an outer wall of one side of the sleeve (510).

4. A ring main unit with a moisture-proof mechanism according to claim 1, characterized in that: The heat dissipation component (6) is composed of an inner heat-conducting seat (61), a first heat pipe (62), a heat collecting fin (63), an outer heat-conducting seat (64), a second heat pipe (65), heat dissipation fins (66), and a third fan (67). The inner heat-conducting seat (61) is fixedly connected to a lower surface of the heat-conducting cover plate (4). A first heat pipe (62) is fixedly connected to the inner heat-conducting seat (61), and a heat collecting fin (63) is fixedly connected to the first heat pipe (62).

5. The ring main unit with a moisture-proof mechanism according to claim 4, characterized in that: The outer heat-conducting seat (64) is fixedly connected to an upper surface of the heat-conducting cover plate (4). A second heat pipe (65) is fixedly connected to the outer heat-conducting seat (64), and heat dissipation fins (66) are fixedly connected to the second heat pipe (65). A third fan (67) is fixedly connected to an upper surface of the outer heat-conducting seat (64).

6. The ring main unit with a moisture-proof mechanism according to claim 1, wherein: A side plate (2) is fixedly connected to the base (1), and the side plate (2) is fixedly connected to a lower surface of the heat-conducting cover plate (4). A heat dissipation opening (7) is formed in the side plate (2), and a second inductor (14) is fixedly connected to an outer wall of one side of the side plate (2).

7. The ring main unit with a moisture-proof mechanism according to claim 1, characterized in that: A circuit breaker (12) is fixedly connected to an outer wall of one side of the back plate (51).

8. A ring main unit with a moisture-proof mechanism according to claim 4, characterized in that: A first inductor (13) is fixedly connected to a lower surface of the inner heat-conducting seat (61).

9. The ring main unit with a moisture-proof mechanism according to claim 6, characterized in that: A panel (3) is fixedly connected to the base (1), and the panel (3) is fixedly connected to a lower surface of the heat-conducting cover plate (4). A display screen (8), a voltmeter (9), and an ammeter (10) are arranged on an outer wall of one side of the panel (3).

10. A ring main unit with a moisture-proof mechanism according to claim 9, characterized in that: An observation window (11) is arranged on an outer wall of one side of the panel (3).

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