FTU controller with dehumidification and heat dissipation functions

Abstract

The invention belongs to the technical field of controllers, and particularly relates to an FTU controller with dehumidification and heat dissipation, the FTU controller comprises a bottom plate and a mounting seat arranged on the bottom plate, a cover body is arranged on the bottom plate, the mounting seat is sleeved with the cover body, and air holes located in the two sides of the mounting seat are symmetrically formed in the bottom plate. The air holes are opened in the heat dissipation period, and efficient forced convection heat exchange is achieved in cooperation with an inverted-U-shaped air flow path formed by the heat dissipation fan and the guide plate; in the non-heat-dissipation period, full-sealing plugging is achieved, external moisture, rainwater and dust are prevented from invading from the source, the moisture absorption plate is switched in one direction along with the transverse plate, the air inlet side is always the dry moisture absorption plate, and air inlet whole-process dry filtering is achieved; the to-be-regenerated moisture absorption plate on the exhaust side can complete passive self-regeneration through heat dissipation hot air, natural convection auxiliary heat dissipation is achieved through the chimney effect through an annular convection channel formed by the inner cover, the connecting strips and the outer cover, and the heat dissipation requirement of the equipment under all working conditions is met.

Description

Technical Field

[0001] This invention belongs to the field of controller technology, specifically relating to an FTU controller with dehumidification and heat dissipation. Background Technology

[0002] The FTU controller, short for Feeder Terminal Unit, is the core outdoor terminal equipment of the smart distribution network automation system and a key bridge connecting the distribution network automation master station and the field feeder equipment. It is mainly installed on the overhead line towers and ring main units of 10kV and below medium and low voltage distribution networks, and is deployed in conjunction with feeder switches such as pole-mounted circuit breakers, load switches, and sectionalizing switches.

[0003] In existing outdoor FTU equipment, the forced convection cooling solution is mostly designed with normally open air intake and exhaust ports. Although it can meet the basic heat dissipation requirements, it cannot achieve full sealing protection of the cavity. External humid air, rainwater and dust can easily enter the equipment. Especially when the equipment is shut down or during low-temperature periods at night, the breathing pump effect caused by the thermal expansion and contraction of the cavity will continuously draw in high-humidity air, which can easily cause condensation in the cavity, resulting in corrosion of components, insulation failure and even short circuit and burnout. Summary of the Invention

[0004] The purpose of this invention is to provide an FTU controller that simultaneously opens and closes the air vents and switches the moisture absorption plate to solve the above-mentioned problems, and has dehumidification and heat dissipation functions.

[0005] The present invention achieves the above objectives through the following technical solutions: An FTU controller with dehumidification and heat dissipation includes a base plate and a mounting base disposed on the base plate. A cover is disposed on the base plate and is fitted onto the mounting base. Air holes are symmetrically opened on both sides of the mounting base on the base plate. A cooling fan is fixedly disposed on the mounting base above one of the air holes. A receiving groove is opened on the base plate. It also includes: A sealing plate, which is symmetrically and slidably disposed in a receiving groove, and covers the air hole; The switching mechanism includes a horizontal plate rotatably disposed in the receiving groove. The horizontal plate is provided with a one-way rotation mechanism, which is connected to the sealing plate. The one-way rotation mechanism includes a vertical shaft, which drives the sealing plate to open and close and the horizontal plate to rotate in one direction following the vertical shaft through forward and reverse rotation. A moisture-absorbing plate is fixedly installed at both ends of a horizontal plate, and the moisture-absorbing plate covers the air holes.

[0006] As a further optimization of the present invention, the vertical shaft is rotatably connected to the horizontal plate, a ratchet is fixedly provided on the vertical shaft, and a pawl that abuts against the ratchet is arranged in an array on the horizontal plate. An elastic element is provided between the pawl and the horizontal plate.

[0007] As a further optimization of the present invention, the two ends of the horizontal plate are embedded and slidably provided with limiting blocks with rounded corners at both ends. The two ends of the horizontal plate are in contact with the side wall of the receiving groove. An elastic element is connected between the limiting block and the horizontal plate. The side wall of the receiving groove is provided with a limiting groove located above the air hole. The limiting block is movably embedded in the limiting groove.

[0008] As a further optimization of the present invention, a sliding groove is provided in the receiving groove, the sealing plate is symmetrically slidably disposed in the sliding groove, a rack is fixedly disposed on the sealing plate, and a gear is fixedly disposed on the vertical shaft, with the two sides of the gear respectively meshing with the rack.

[0009] As a further optimization of the present invention, a servo motor is fixedly mounted on the mounting base, and the output end of the servo motor is fixedly connected to the vertical shaft.

[0010] As a further optimization of the present invention, the receiving groove is provided with a cover plate, and the cover plate is symmetrically provided with clearance holes located above the air holes.

[0011] As a further optimization of the present invention, the cover includes a cover base, an inner cover is fixedly disposed on the cover base, the inner cover is sleeved on the mounting base, ribs and connecting strips are respectively arrayed on the inner and outer surfaces of the inner cover, and an outer cover sleeved on the inner cover is connected to the inner cover through the connecting strips. The lower end of the outer cover is not connected to the cover base, and a central hole is opened at the upper end of the outer cover.

[0012] As a further optimization of the present invention, guide plates are symmetrically arranged on the inner surface of the inner cover, and the mounting base is slidably arranged on the guide plates.

[0013] As a further optimization of the present invention, a water receiving groove is fixedly provided on the inner surface of the cover, located below the rib, and a drainage groove communicating with the water receiving groove is opened obliquely on the cover, and a one-way valve is provided in the drainage groove.

[0014] The beneficial effects of this invention are as follows: 1. Unlike existing technologies, in actual use, the vents can be opened and closed in a controlled manner through the sealing plate: during heat dissipation, the vents are opened, and in conjunction with the inverted U-shaped airflow path formed by the cooling fan and the guide plate, efficient forced convection heat exchange is achieved; during non-heat dissipation periods, the vents are completely sealed to prevent the intrusion of external moisture, rainwater, and dust from the source.

[0015] 2. Unlike existing technologies, in actual use, the moisture-absorbing plate switches unidirectionally with the horizontal plate, so that the air intake side is always a dry moisture-absorbing plate, achieving full-process dry filtration of the air intake; the moisture-absorbing plate on the exhaust side that is to be regenerated can be regenerated by heat dissipation hot air, solving the problem that traditional fixed moisture-absorbing plates are easy to saturate and require frequent pole climbing for replacement, making it suitable for outdoor unattended scenarios.

[0016] 3. Unlike existing technologies, in actual use, the ribs of the inner cover achieve rapid heat conduction and dissipation. Combined with the annular convection channel formed by the inner cover, connecting strips and outer cover, the chimney effect is used to achieve natural convection-assisted heat dissipation, covering the heat dissipation needs of the equipment under all operating conditions. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is the present invention. Figure 1 Another perspective structural diagram; Figure 3 This is the present invention. Figure 1 Explosion structure diagram; Figure 4 This is a schematic diagram of the cover structure of the present invention; Figure 5 This is the present invention. Figure 4 Schematic diagram of partial cross-section; Figure 6 This is the present invention. Figure 5 Enlarged structural diagram at point A in the middle; Figure 7 This is a schematic diagram of the base plate structure of the present invention; Figure 8 This is the present invention. Figure 7 Explosion structure diagram; Figure 9 This is a schematic diagram of the cross-sectional structure of the horizontal plate of the present invention; Figure 10 This is a schematic diagram of the mounting base structure of the present invention.

[0018] In the diagram: 1. Base plate; 2. Cover body; 21. Cover base; 22. Inner cover; 221. Rib; 23. Outer cover; 231. Center hole; 24. Connecting strip; 3. Mounting base; 31. Guide plate; 4. Water receiving trough; 41. Drainage trough; 42. One-way valve; 5. Air hole; 6. Sealing plate; 61. Rack; 62. Slide groove; 63. Gear; 7. Switching mechanism; 71. Horizontal plate; 72. One-way rotation mechanism; 721. Vertical shaft; 722. Ratchet; 723. Pawl; 724. Elastic component one; 73. Limiting block; 731. Elastic component two; 74. Limiting groove; 8. Moisture-absorbing plate; 9. Servo motor; 10. Receiving groove; 101. Cover plate; 102. Clearance hole; 11. Cooling fan. Detailed Implementation

[0019] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0020] Example 1, as Figure 1 - Figure 3 and Figure 7 As shown, an FTU controller with dehumidification and heat dissipation includes a base plate 1 and a mounting base 3 fixedly mounted on the base plate 1. The mounting base 3 is used to fix and install the core measurement and control module, communication module, relay protection module, temperature detection module, and other working components of the FTU. A cover 2 is fixedly mounted on the base plate 1, which is fitted over the outside of the mounting base 3 to form a closed protective cavity with the base plate 1, providing basic sealing protection for the core components operating outdoors. The base plate 1 has symmetrically opened air holes 5 on both sides of the mounting base 3. The two air holes 5 serve as the intake and exhaust channels for forced convection, respectively. A cooling fan 11 is fixedly mounted on the mounting base 3, located above the exhaust side air hole 5, to drive the air inside and outside the cavity to form forced convection. Alternatively, the cooling fan 11 can be installed above the intake side air hole 5 to achieve positive pressure air supply according to heat dissipation requirements. A circular receiving groove 10 is opened at the axial position of the upper surface of the base plate 1, which completely covers the two air holes 5 for installing the core transmission and functional components of the equipment.

[0021] like Figure 7 - Figure 8As shown, two sets of sealing plates 6 are symmetrically slidably arranged in the receiving groove 10. The covering area of ​​the sealing plate 6 is larger than the opening area of ​​the air hole 5, and it can completely cover the air hole 5 to achieve full sealing. The inner bottom wall of the receiving groove 10 is provided with a sliding groove 62 extending along the line connecting the two air holes 5. The two sets of sealing plates 6 are slidably arranged on both sides of the sliding groove 62, and can slide back and forth in a straight line along the sliding groove 62. Each set of sealing plates 6 is fixedly provided with a rack 61 on the side facing the center of the receiving groove 10. The two racks 61 are arranged relatively parallel to each other and are used to cooperate with the transmission structure to realize the synchronous opening and closing of the sealing plates 6. The receiving tank 10 is also equipped with a switching mechanism 7. The switching mechanism 7 includes a horizontal plate 71 rotatably positioned at the center of the receiving tank 10. The rotation center of the horizontal plate 71 coincides with the center of the receiving tank 10. A one-way rotation mechanism 72 is positioned at the center of the horizontal plate 71. The one-way rotation mechanism 72 is connected to the sealing plate 6. The one-way rotation mechanism 72 includes a vertically arranged vertical shaft 721. By rotating the vertical shaft 721 in both directions, the sealing plate 6 can be driven to open and close, and the horizontal plate 71 can be driven to rotate in one direction in the forward direction following the vertical shaft 721. Moisture-absorbing plates 8 are also fixedly installed through both ends of the horizontal plate 71. The moisture-absorbing plates 8 are made of honeycomb modified polyacrylate / polyether type polymer moisture-absorbing material. The conventional regeneration temperature range for this type of material is 35~70℃. The hot airflow used for heat dissipation can achieve efficient desorption. The honeycomb structure provides the material with a large specific surface area and a through airflow channel, which greatly enhances the mass transfer and heat exchange efficiency between the hot air and the material. The hot airflow can fully penetrate the honeycomb channels and make full contact with the moisture absorption sites, quickly removing the desorbed moisture. This avoids the problems of moisture residue inside the dense material and incomplete desorption, further reducing the temperature threshold for effective regeneration and shortening the regeneration time. The size of the moisture absorption plate 8 matches the opening size of the air hole 5, and it can completely cover the air hole 5. The position switching of the two sets of moisture absorption plates 8 can be completed by rotating the horizontal plate 71 in one direction.

[0022] like Figure 9As shown, the lower end of the vertical shaft 721 is rotatably connected to the inner bottom wall of the receiving groove 10 via a bearing. The middle part of the vertical shaft 721 is rotatably connected to the center position of the horizontal plate 71, allowing the horizontal plate 71 to rotate freely around the axis of the vertical shaft 721. A ratchet 722 is fixedly sleeved on the vertical shaft 721, and the ratchet 722 is located above the horizontal plate 71. The upper surface of the horizontal plate 71 is rotatably arranged in a circular array around the axis of the vertical shaft 721, with multiple pawls 723 abutting against the ratchet 722. An elastic element 724 is provided between the pawls 723 and the horizontal plate 71. In this embodiment, the elastic element 724 is a compression spring, one end of which is connected to the horizontal plate 71. One end is fixedly connected to the other end, which is fixedly connected to the tail of the pawl 723, providing continuous elastic resistance to the pawl 723 and ensuring stable engagement between the pawl 723 and the ratchet 722, thereby achieving a one-way transmission function: when the vertical shaft 721 rotates clockwise (counterclockwise), the ratchet 722 rotates clockwise synchronously with the vertical shaft 721, and the pawl 723 locks into engagement with the ratchet 722, thereby driving the horizontal plate 71 to rotate clockwise synchronously with the vertical shaft 721; when the vertical shaft 721 rotates counterclockwise, the ratchet 722 rotates counterclockwise synchronously with the vertical shaft 721, the pawl 723 slides along the inclined surface of the teeth of the ratchet 722, and rotates freely relative to the ratchet 722, while the horizontal plate 71 remains stationary.

[0023] like Figure 8 - Figure 9As shown, to ensure accurate positioning after the horizontal plate 71 rotates, both ends of the horizontal plate 71 are provided with grooves extending along its length. Limiting blocks 73 with rounded ends are slidably disposed within the grooves. An elastic element 731 connects the end of the limiting block 73 facing the center of the horizontal plate 71 to the bottom of the groove. In this embodiment, the elastic element 731 is a compression spring, providing elastic thrust to the limiting block 73 towards the outside of the horizontal plate 71. The end faces of both ends of the horizontal plate 71 slide against the inner sidewall of the receiving groove 10. The sidewall of the receiving groove 10 is provided with two sets of limiting grooves 74, located at two... The horizontal plate 71 is positioned directly above the air hole 5, and the line connecting the two sets of limiting grooves 74 coincides with the line connecting the two air holes 5. When the horizontal plate 71 rotates until its length direction coincides with the line connecting the two air holes 5, the limiting block 73, under the elastic force of the elastic element 731, is embedded in the corresponding limiting groove 74, achieving precise positioning and locking of the horizontal plate 71. When the vertical shaft 721 drives the horizontal plate 71 to rotate, the rounded corner structure of the limiting block 73 slides along the guide surface of the groove opening of the limiting groove 74, compressing the elastic element 731, so that the limiting block 73 can smoothly disengage from the limiting groove 74, ensuring that the rotation and switching action of the horizontal plate 71 is smooth and without jamming. A gear 63 is fixedly sleeved on the vertical shaft 721. The gear 63 is located below the ratchet 722 and between the two racks 61. The two sides of the gear 63 mesh with the two racks 61 respectively, thereby realizing the opening and closing drive of the sealing plate 6: When the vertical shaft 721 rotates forward, the gear 63 rotates forward synchronously. Through the meshing transmission between the gear 63 and the racks 61, the two sealing plates 6 slide towards each other, opening the air hole 5; when the vertical shaft 721 rotates in reverse, the gear 63 rotates in reverse synchronously, driving the two sealing plates 6 to slide away from each other, sealing the air hole 5.

[0024] like Figure 7 and Figure 10 As shown, a servo motor 9 is fixedly installed at the lower center of the mounting base 3. The servo motor 9 is suitable for outdoor high humidity and wide temperature environments. The output end of the servo motor 9 is fixedly connected to the upper end of the vertical shaft 721 through a coupling, which is used to drive the vertical shaft 721 to achieve precise angle control of forward and reverse rotation. The vertical shaft 721 passes through the receiving groove 10. A cover plate 101 is fixedly installed at the top opening of the receiving groove 10. The cover plate 101 is detachably fixed to the base plate 1 by bolts. The cover plate 101 has symmetrical clearance holes 102 located above the air hole 5. The size of the clearance hole 102 matches the opening size of the air hole 5. While ensuring smooth airflow, it also protects the sealing plate 6, switching mechanism 7, transmission structure, etc. in the receiving groove 10, preventing dust and moisture from entering and causing transmission jamming.

[0025] like Figure 4 - Figure 6As shown, the cover 2 includes a cover base 21 that is sealed and fixed to the base plate 1. An inner cover 22 is fixedly installed at the upper end of the cover base 21. The inner cover 22 is a cylindrical structure with an open lower end and is fitted on the outside of the mounting base 3. The inner surface of the inner cover 22 is provided with an array of vertically extending ribs 221. The ribs 221 are made of aluminum alloy with high thermal conductivity and are integrally formed with the inner cover 22. They can quickly conduct heat in the cavity to the outside of the cover 2. The outer surface of the inner cover 22 is provided with an array of connecting strips 24. The inner cover 22 is fixedly connected to the outer cover 23 fitted on the outside of the inner cover 22 through the connecting strips 24. The lower end of the outer cover 23 is not connected to the cover base 21, forming an annular lower opening. The upper end of the outer cover 23 is provided with a central hole 231, so that an annular convection channel is formed between the inner cover 22 and the outer cover 23. The central hole 231 and the lower opening form a chimney effect to achieve natural convection-assisted heat dissipation. The inner surface of the inner cover 22 is symmetrically provided with guide plates 31. The two sets of guide plates 31 are arranged opposite each other to form a vertical guide constraint. The two sides of the mounting base 3 slide along the guide plates 31 to achieve precise sliding installation and positioning of the mounting base 3. At the same time, the guide plates 31 cooperate with the mounting base 3 to divide the cavity formed by the inner cover 22 and the cover base 21 into two independent areas with independent bottoms and interconnected tops. The two independent areas are respectively connected to two air holes 5, so that the heat dissipation airflow forms a complete inverted U-shaped path when it flows, ensuring that the airflow fully sweeps over all components on the mounting base 3 and improves the heat exchange efficiency. A water receiving groove 4 is fixedly installed on the inner surface of the cover 21. The water receiving groove 4 is an annular groove structure located directly below the rib 221. It is used to collect condensed water flowing down from the rib 221. A drainage groove 41 communicating with the water receiving groove 4 is obliquely opened on the cover 21. The high end of the drainage groove 41 is connected to the bottom of the water receiving groove 4, and the low end extends to the outer wall of the cover 21. A one-way valve 42 is fixedly installed in the drainage groove 41. The one-way valve 42 only allows the condensed water in the water receiving groove 4 to be discharged to the outside of the equipment, preventing rainwater and humid air from entering the equipment through the drainage groove 41, so as to realize the automatic discharge of condensed water and reverse protection.

[0026] It should be noted that the FTU controller with dehumidification and heat dissipation operates as follows: When the temperature detection module inside the FTU detects that the temperature of the internal components has reached the preset heat dissipation threshold, the servo motor 9 starts, driving the vertical shaft 721 to rotate forward at a set angle. During the forward rotation of the vertical shaft 721, the gear 63 fixed on the vertical shaft 721 rotates synchronously. Through the meshing transmission between the gear 63 and the racks 61 on both sides, the two sealing plates 6 are driven to slide towards each other along the slide groove 62, so that the sealing plates 6 are completely moved from above the air hole 5. Open the two air holes 5. On the other hand, the ratchet 722 on the vertical shaft 721 rotates synchronously forward. The pawl 723 is locked and engaged with the ratchet 722 under the action of the elastic element 1 724, which drives the horizontal plate 71 to rotate synchronously 180° with the vertical shaft 721, completing the position switching of the moisture-absorbing plates 8 at both ends of the horizontal plate 71. After the horizontal plate 71 rotates to the position, the limiting block 73 is embedded in the limiting groove 74 under the elastic force of the elastic element 2 731, completing the precise positioning and locking. At this time, the two moisture-absorbing plates 8 completely cover the two air holes 5. After the vent 5 is fully opened, the cooling fan 11 starts, driving the air inside and outside the cavity to form forced convection. Outside air enters through the vent 5 on one side, which serves as the air inlet, passes through the moisture-absorbing plate 8 at the corresponding position, and after completing the drying and filtration of water vapor and dust in the air, it enters the inner cavity of the cover 2. Under the separation of the guide plate 31 and the mounting base 3, the dry and cold air flows upward along one of the independent areas, fully sweeping over the heat-generating components on the mounting base 3. After completing the heat exchange and temperature rise, it flows from the upper part of the cavity into another independent area, and then flows downward, and is discharged through the vent 5 on the other side, which serves as the exhaust port, forming a complete inverted U-shaped airflow path. This maximizes the contact area between the airflow and the heat-generating components, improving the forced convection heat dissipation efficiency. At the same time, the ribs 221 on the inner surface of the inner cover 22 quickly absorb the heat in the cavity and conduct it to the outer surface of the inner cover 22. Through the annular convection channel between the inner cover 22 and the outer cover 23, natural convection is formed by utilizing the chimney effect, further improving the heat dissipation effect and covering the heat dissipation needs of the equipment under all operating conditions.

[0027] When the internal temperature of the FTU controller drops to a safe threshold, or when the equipment is in a standby state, the servo motor 9 starts and drives the vertical shaft 721 to reverse the set angle. During the reversal of the vertical shaft 721, the gear 63 reverses synchronously. Through the meshing transmission between the gear 63 and the rack 61, the two sealing plates 6 slide back and forth along the slide groove 62, so that the sealing plates 6 move back above the air hole 5, completely covering and sealing the air hole 5, realizing the full sealing protection of the inner cavity of the cover 2, blocking the intrusion of external humid air, rainwater, and dust from the source, avoiding the breathing pump effect formed by the thermal expansion and contraction of the cavity during equipment shutdown and low temperature at night, and preventing the generation of condensation in the cavity. During this process, the ratchet 722 reverses synchronously with the vertical shaft 721, and the pawl 723 slides along the inclined surface of the teeth of the ratchet 722, rotating relative to the ratchet 722. The horizontal plate 71 remains stationary under the positioning action of the limit block 73 and the limit groove 74, and the position of the moisture-absorbing plate 8 remains unchanged.

[0028] During the heat dissipation process, the moisture-absorbing plate 8 on the intake side dries and dehumidifies the air entering the cavity, absorbing moisture from the air. The moisture-absorbing plate 8 on the exhaust side is continuously swept by the high-temperature hot air discharged after heat exchange. The high-temperature hot air carries away the moisture absorbed in the moisture-absorbing plate 8, realizing the self-regeneration of the moisture-absorbing plate 8. After completing one heat dissipation cycle, when the next heat dissipation is started, the servo motor 9 drives the vertical shaft 721 to rotate forward, driving the horizontal plate 71 to rotate 180° again. The exhaust-side moisture-absorbing plate 8 that has completed regeneration in the previous cycle is switched to the intake side as a new drying and moisture-absorbing unit. The intake-side moisture-absorbing plate 8 that has absorbed moisture in the previous cycle is switched to the exhaust side for regeneration. This ensures that the intake side is always in a relatively dry state, completely solving the problems of easy saturation and frequent pole climbing and replacement of traditional fixed structures. It is perfectly adapted to the unattended operation of outdoor power distribution lines. Meanwhile, during the entire operation of the equipment, if a small amount of condensation occurs on the inner wall of the inner cover 22 due to the temperature difference between the inside and outside, the condensate will flow downward along the ribs 221 and flow into the water receiving tank 4 below. Then, through the inclined drainage tank 41, it will be automatically discharged to the outside of the equipment through the one-way valve 42, thus avoiding the accumulation of condensate in the cavity and causing component corrosion, short circuits and other malfunctions, thereby further improving the operational reliability and service life of the equipment.

[0029] The embodiments described above are merely examples of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention.

Claims

1. An FTU controller with dehumidification and heat dissipation, comprising a base plate (1) and a mounting base (3) disposed on the base plate (1), characterized in that: A cover (2) is provided on the base plate (1), the cover (2) is fitted on the mounting base (3), and air holes (5) are symmetrically opened on the base plate (1) on both sides of the mounting base (3). A cooling fan (11) is fixedly installed on the mounting base (3) above one of the air holes (5), and a receiving groove (10) is opened on the base plate (1). It also includes: A sealing plate (6) is symmetrically slidably disposed in a receiving groove (10) and covers the air hole (5); The switching mechanism (7) includes a horizontal plate (71) rotatably disposed in the receiving groove (10). A one-way rotation mechanism (72) is provided on the horizontal plate (71). The one-way rotation mechanism (72) is connected to the sealing plate (6). The one-way rotation mechanism (72) includes a vertical shaft (721). The sealing plate (6) is opened and closed by the forward and reverse rotation of the vertical shaft (721), and the horizontal plate (71) follows the one-way forward rotation of the vertical shaft (721). Moisture-absorbing plate (8) is fixedly installed at both ends of horizontal plate (71) and covers the air hole (5).

2. The FTU controller with dehumidification and heat dissipation according to claim 1, characterized in that: The vertical shaft (721) is rotatably connected to the horizontal plate (71). A ratchet (722) is fixedly installed on the vertical shaft (721). A pawl (723) that abuts against the ratchet (722) is arranged in an array on the horizontal plate (71). An elastic element (724) is provided between the pawl (723) and the horizontal plate (71).

3. The FTU controller with dehumidification and heat dissipation according to claim 1, characterized in that: The horizontal plate (71) has a sliding limit block (73) with rounded corners at both ends embedded in both ends. The two ends of the horizontal plate (71) are in contact with the side wall of the receiving groove (10). An elastic element (731) is connected between the limit block (73) and the horizontal plate (71). The side wall of the receiving groove (10) has a limit groove (74) located above the air hole (5). The limit block (73) is movably embedded in the limit groove (74).

4. An FTU controller with dehumidification and heat dissipation according to claim 1, characterized in that: The receiving groove (10) is provided with a sliding groove (62), the sealing plate (6) is symmetrically slidably arranged in the sliding groove (62), the sealing plate (6) is fixedly provided with a rack (61), the vertical shaft (721) is fixedly provided with a gear (63), and the two sides of the gear (63) respectively mesh with the rack (61).

5. An FTU controller with dehumidification and heat dissipation according to claim 1, characterized in that: A servo motor (9) is fixedly installed on the mounting base (3), and the output end of the servo motor (9) is fixedly connected to the vertical shaft (721).

6. An FTU controller with dehumidification and heat dissipation according to claim 1, characterized in that: The receiving groove (10) is provided with a cover plate (101), and the cover plate (101) is symmetrically provided with clearance holes (102) located above the air hole (5).

7. An FTU controller with dehumidification and heat dissipation according to claim 1, characterized in that: The cover (2) includes a cover base (21), on which an inner cover (22) is fixedly installed. The inner cover (22) is fitted onto the mounting base (3). Ribs (221) and connecting strips (24) are arranged in an array on the inner and outer surfaces of the inner cover (22). An outer cover (23) is connected to the outer side of the inner cover (22) through the connecting strips (24). The lower end of the outer cover (23) is not connected to the cover base (21). A central hole (231) is opened at the upper end of the outer cover (23).

8. An FTU controller with dehumidification and heat dissipation according to claim 7, characterized in that: The inner surface of the inner cover (22) is symmetrically provided with guide plates (31), and the mounting base (3) is slidably disposed on the guide plates (31).

9. An FTU controller with dehumidification and heat dissipation according to claim 7, characterized in that: The inner surface of the cover (21) is fixedly provided with a water receiving groove (4) located below the rib (221), and a drainage groove (41) communicating with the water receiving groove (4) is opened obliquely on the cover (21), and a one-way valve (42) is provided in the drainage groove (41).

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