High-voltage direct-current power supply with isolation protection device

Abstract

The invention discloses a high-voltage direct-current power supply with an isolation protection device, and particularly relates to the field of power supplies, the high-voltage direct-current power supply comprises a power supply box and a power supply conversion module arranged in the power supply box, a perforated partition plate is fixedly arranged in the power supply box, and an isolation area is arranged between the bottom of the perforated partition plate and the inner wall of the bottom side of the power supply box; a working area is formed between the top of the partition plate with the holes and the inner wall of the top side of the power box, the power conversion module is located in the working area, air inlet holes and heat dissipation holes are formed in the power box, the air inlet holes are located in the isolation area, and the heat dissipation holes are located in the working area. By arranging the isolation protection mechanism and the shielding mechanism, moisture in air is prevented from entering the power box through the air inlet hole and the heat dissipation hole, the working area of the power box is always kept in a dry state, electrical short circuit, reduction of insulation performance and damage of electronic elements can be prevented, and normal and stable operation of a power supply can be ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of power supplies, and more particularly to a high-voltage direct current power supply with an isolation protection device. Background Art

[0002] A high-voltage DC power supply (HVDC) is a device that provides stable, constant-direction current. Its characteristics make it an excellent choice for applications requiring high voltage and precise control, and it improves the stability and reliability of power supply. In hydroponic farms, efficient LED grow lights are often used to simulate the lighting conditions required for plant growth. These lights rely on the stable and precise power supply provided by the HVDC. High-voltage DC power supplies generate a certain amount of heat during the voltage conversion and regulation process. Excessively high operating temperatures not only reduce the power supply's conversion efficiency but also accelerate the aging process of internal electronic components, shortening their service life and potentially causing system failures or even safety incidents. Therefore, a cooling fan is required to actively dissipate heat based on the internal temperature of the power supply box.

[0003] However, in a hydroponic environment, since the plants grow directly in the nutrient solution, the relative humidity of the entire space is often very high, posing a special challenge to power supply equipment. Although high-voltage DC power supplies are equipped with efficient heat dissipation systems to cope with the heat generated during operation, high humidity conditions, especially when moisture condenses into water droplets, can cause moisture to be drawn into the power supply. Once moisture evenly adheres to key components of the power supply, such as the converter module, it forms a film that hinders heat exchange, significantly reducing heat dissipation efficiency and potentially causing overheating, accelerated aging, or even permanent damage to the power supply. In the prior art, an isolation and protection mechanism is provided at the air inlet of the power supply box. Specifically, a flexible filter is installed at the air inlet, which drives a cooling fan to rotate continuously. The cooling fan rotates to draw in external air, where moisture in the air is absorbed by the flexible filter. The dried air then enters the housing. The moisture is removed by reciprocating the flexible filter, and the hot air in the housing is discharged through the heat dissipation holes. Because the cooling fan rotates continuously, there is no need to worry about moisture in the air entering the power supply box through the heat dissipation holes.

[0004] Then, when the high-voltage DC power supply is in light load or standby mode, or when the ambient temperature of the hydroponic farm is low, the heat generated by the high-voltage DC power supply in the working state can be effectively dissipated through passive heat dissipation. Therefore, in order to save power resources, the cooling fan inside the power box does not need to rotate continuously. However, the exhaust holes of the existing high-voltage DC power supply are not equipped with isolation protection mechanisms. When the cooling fan stops rotating, moisture in the air can enter the interior of the power box through the cooling holes, which may cause electrical short circuits, degradation of insulation performance and damage to electronic components, thereby affecting the normal operation of the power supply. Summary of the Invention

[0005] The present invention provides a high-voltage DC power supply with an isolation and protection device, and aims to solve the problem that, in existing high-voltage DC power supplies, the exhaust holes are not provided with an isolation and protection mechanism. When the cooling fan stops rotating, moisture in the air can enter the interior of the power supply box through the cooling holes, which may cause electrical short circuits, degradation of insulation performance and damage to electronic components, thereby affecting the normal operation of the power supply.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a high-voltage direct current power supply with an isolation and protection device, comprising a power supply box and a power conversion module disposed in the power supply box, wherein a perforated partition is fixedly disposed in the power supply box, wherein the isolation zone is defined between the bottom of the perforated partition and the bottom inner wall of the power supply box, and the working zone is defined between the top of the perforated partition and the top inner wall of the power supply box, wherein the power conversion module is located in the working zone, and the power supply box is provided with air intake holes and heat dissipation holes, wherein the air intake holes are located in the isolation zone, and the heat dissipation holes are located in the working zone; An active heat dissipation mechanism is provided on the perforated partition, and the active heat dissipation mechanism includes heat dissipation fan blades. The heat dissipation fan blades rotate to allow the air outside the power box to enter the isolation area through the air inlet holes, and the air in the working area is discharged through the heat dissipation holes; An isolation protection mechanism is provided in the isolation area, and the isolation protection mechanism includes a flexible hygroscopic part 1. The flexible hygroscopic part 1 rotates to change the contact position between the gas continuously entering the isolation area and the flexible hygroscopic part 1. A shielding mechanism is provided in the working area, and the shielding mechanism includes an adjustment plate. The adjustment plate is adapted to the heat dissipation hole, and a flexible hygroscopic part 2 is provided on the adjustment plate. The adjustment plate isolates the power box from the outside by blocking the heat dissipation hole.

[0007] In a preferred embodiment, the isolation and protection mechanism also includes a rotary drive, which is fixed on the inner wall of the power box and located in the isolation area. A guide roller 1 is fixed on the output end of the rotary drive, and multiple guide rollers 2 are rotatably arranged in the isolation area of the power box. A flexible hygroscopic member 1 is transmission-set on the guide roller 1 and multiple guide rollers 2. Two squeezing rollers are rotatably arranged in the isolation area of the power box, and the flexible hygroscopic member 1 is located between the two squeezing rollers. The two squeezing rollers extrude the flexible hygroscopic member 1 by synchronously rotating in opposite directions.

[0008] In a preferred embodiment, a deflector is fixedly provided in the power box, the air inlet is located in the deflector, a dust filter is fixedly provided in the deflector, and a flexible moisture-absorbing member is slidably provided with the deflector.

[0009] In a preferred embodiment, a through hole is opened on the adjustment plate, the second flexible moisture-absorbing member is fixedly arranged in the through hole, and a baffle is fixedly arranged on the inner wall of the power box, and the baffle is adapted to the edge of the adjustment plate.

[0010] In a preferred embodiment, a collecting box is provided in the power box, and the collecting box is located directly below the extrusion roller. A dust removal mechanism is provided in the power box, and the dust removal mechanism includes a pump. The pump is fixedly arranged in the power box, and the liquid inlet end of the pump is fixedly connected to the collecting box. The liquid discharge end of the pump is fixedly connected to a flexible tube, and a nozzle is fixedly arranged on the flexible tube. A linear drive is fixedly arranged in the guide cover, and the output end of the linear drive is fixedly arranged with the nozzle.

[0011] In a preferred embodiment, an annular groove is provided on the guide roller 1, and a plurality of support shafts are fixedly arranged in the annular groove. The flexible hygroscopic component 1 includes a flexible hygroscopic layer 1 and a flexible support layer. The flexible support layer is arranged at the edge of the flexible hygroscopic layer 1. The flexible support layer is in rolling contact with the guide roller 1, and the end of the support shaft is in contact with the flexible hygroscopic layer 1.

[0012] In a preferred embodiment, the active heat dissipation mechanism includes a bracket, a motor is fixedly arranged in the bracket, the heat dissipation fan blades are fixedly arranged on the output shaft of the motor, and a heat pipe is fixedly arranged in the bracket.

[0013] In a preferred embodiment, a support plate is fixedly provided at the output end of the linear drive, and the support plate is fixedly provided to the nozzle.

[0014] In a preferred embodiment, mounting grooves are provided on both the adjustment plate and the baffle, magnets are fixedly disposed in both mounting grooves, and the two corresponding magnets are adapted to each other.

[0015] In a preferred embodiment, gears are fixedly provided on both squeezing rollers, the two gears are meshed with each other, pulleys are fixedly provided on the gears and the second guide roller, and the two pulleys are driven by the same belt.

[0016] The beneficial effects of the present invention are: 1. The present invention sets an isolation protection mechanism and a shielding mechanism, and air enters the power box through the air inlet, ensuring that the gas entering the isolation area through the air inlet contacts different positions of the flexible moisture-absorbing component 1, further absorbing moisture in the gas, and avoiding that some positions on the flexible moisture-absorbing component 1 absorb too much water and become saturated, resulting in poor air permeability. In addition, by setting an adjustment plate and a flexible moisture-absorbing component 2, the moisture in the air is absorbed while the air inside and outside the power box can circulate, and moisture in the air is avoided from entering the power box through the air inlet and the heat dissipation holes, so that the working area of the power box is always kept dry, which can prevent electrical short circuits, degradation of insulation performance and damage to electronic components, and ensure that the power supply can operate normally and stably.

[0017] 2. The present invention provides a dust removal mechanism. The squeezing roller rotates in the opposite direction to squeeze the flexible moisture-absorbing member 1. The moisture in the flexible moisture-absorbing member 1 will remain in the collection box. The pump is started to extract the water in the collection box. The water is then sprayed onto the dust filter through the nozzle to actively flush and clean the dust accumulated on the dust filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0019] Figure 2 It is a structural schematic diagram of the main view of the shell of the present invention.

[0020] Figure 3 Schematic diagram of the three-dimensional structure of the bracket of the present invention.

[0021] Figure 4 For the present invention Figure 2 Schematic diagram of the cross-sectional structure of the middle shell from the side.

[0022] Figure 5 For the present invention Figure 2 Schematic diagram of the structure of part A.

[0023] Figure 6 Schematic diagram of the motion trajectory of the adjustment plate of the present invention.

[0024] Figure 7 It is a structural schematic diagram of a main view of the guide roller of the present invention.

[0025] Figure 8 It is a schematic diagram of the three-dimensional structure of the linear actuator of the present invention.

[0026] The accompanying drawings are marked as follows: 1. Power box; 11. Air inlet; 12. Heat dissipation hole; 13. Guide plate; 2. Active heat dissipation mechanism; 21. Bracket; 22. Heat dissipation fan blade; 23. Heat conduction pipe; 3. Isolation and protection mechanism; 31. Guide roller 1; 311. Support shaft; 32. Flexible moisture-absorbing component 1; 321. Flexible moisture-absorbing layer 1; 322. Flexible support layer; 33. Squeeze roller; 34. Collection box; 35. Guide cover; 4. Shielding mechanism; 41. Adjustment plate; 42. Flexible moisture-absorbing component 2; 43. Baffle; 44. Magnet; 5. Dust removal mechanism; 51. Pump; 52. Flexible pipe; 53. Linear drive; 531. Support plate. DETAILED DESCRIPTION

[0027] The present application is described in further detail below in conjunction with the accompanying drawings. It is necessary to point out that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technicians in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0028] Refer to the instruction manual Figures 1 to 6 A high-voltage direct current power supply with an isolation protection device includes a power supply box 1 and a power conversion module arranged in the power supply box 1. A perforated partition is fixedly provided in the power supply box 1. The bottom of the perforated partition and the bottom inner wall of the power supply box 1 form an isolation area, and the top of the perforated partition and the top inner wall of the power supply box 1 form a working area. The power conversion module is located in the working area. The power supply box 1 is provided with an air intake hole 11 and a heat dissipation hole 12. The air intake hole 11 is located in the isolation area, and the heat dissipation hole 12 is located in the working area. An active heat dissipation mechanism 2 is provided on the perforated partition plate. The active heat dissipation mechanism 2 includes heat dissipation fan blades 22. The heat dissipation fan blades 22 rotate to allow air outside the power box 1 to enter the isolation area through the air inlet holes 11, and the air in the working area is discharged through the heat dissipation holes 12. An isolation protection mechanism 3 is provided in the isolation area, and the isolation protection mechanism 3 includes a flexible moisture-absorbing member 32. The flexible moisture-absorbing member 32 rotates to change the contact position between the gas continuously entering the isolation area and the flexible moisture-absorbing member 32. A shielding mechanism 4 is provided in the working area, and the shielding mechanism 4 includes an adjustment plate 41. The adjustment plate 41 is adapted to the heat dissipation hole 12. A flexible moisture-absorbing member 42 is provided on the adjustment plate 41. The adjustment plate 41 isolates the power box 1 from the outside by blocking the heat dissipation hole 12.

[0029] It should be noted that the power conversion module includes a transformer, a rectifier, a filter and a voltage stabilizer. The input AC power is first adjusted in voltage by the transformer. The adjusted AC power then enters the rectifier and is converted into pulsating DC power. The pulsating DC power then passes through the filter to filter out unnecessary fluctuation components and produce smoother DC power. Finally, the smoothed DC power enters the voltage stabilizer to ensure that the output voltage remains at a stable level to meet the load requirements. When AC power is input, the transformer changes the voltage according to the set ratio. The input and output ends of the power conversion module are both arranged on the outside of the power box 1, and the working principle of the power conversion module is a mature existing technology and will not be elaborated on here.

[0030] It should also be noted that a guide plate 13 is fixedly provided on the power box 1, and the guide plate 13 is arranged to be tilted downward. The setting of the guide plate 13 can prevent droplets attached to the surface of the power box 1 from entering the interior of the power box 1 through the heat dissipation holes 12. At the same time, a box door for maintenance is provided on the front side of the power box 1, and a sealing gasket is provided inside the box door. When the box door is closed, under the action of the sealing gasket, the inner wall of the power box 1 can only be connected to the outside through the air inlet 11 and the heat dissipation holes 12. A temperature sensor and a single-chip microcomputer are provided inside the power box 1, and the output end of the temperature sensor is connected to the input end of the single-chip microcomputer. When the temperature sensor recognizes that the temperature inside the power box 1 is higher than the preset value, the preset value is set to 70 degrees Celsius, and the single-chip microcomputer will send an electrical signal to rotate the heat dissipation fan blades 22 to actively dissipate heat inside the power box 1. The use of the above-mentioned single-chip microcomputer and temperature sensor as mature existing technologies will not be elaborated here.

[0031] Furthermore, the raw materials of the adjustment plate 41 and the flexible moisture-absorbing part 2 42 include but are not limited to sponge and composite fiber layers, etc. The adjustment plate 41 and the flexible moisture-absorbing part 2 42 have both moisture-absorbing and breathable functions. When the gas flows through the adjustment plate 41 and the flexible moisture-absorbing part 2 42, the moisture in the air can be separated.

[0032] The specific implementation scenario is as follows: when the power conversion module is working, it will emit a certain amount of heat. The temperature sensor continuously detects the temperature inside the power box 1. Since a heat sink is installed in the power box 1, the heat sink can passively dissipate heat inside the power box 1. When the passive heat dissipation can meet the temperature requirements inside the power box 1, there is no need to drive the heat dissipation fan blades 22 to rotate to actively cool the power box 1. At this time, the state of the adjustment board 41 is as follows: Figure 5As shown, the length direction of the adjustment plate 41 is parallel to the height direction of the power box 1, the flexible moisture-absorbing member 2 42 blocks the heat dissipation hole 12 and there is no heat dissipation airflow in the power box 1, the air guide 35 and the flexible moisture-absorbing member 2 42 are not only breathable but also can absorb moisture in the air in a dry state, that is, when the air guide 35 and the flexible moisture-absorbing member 2 42 are dry, the power box 1 can be connected to the outside, and the gas exchange between the inside and outside of the power box 1 is assisted in the state of passive heat dissipation in the power box 1. When the air humidity in the hydroponic environment is high Even if there is no active heat dissipation gas flow in the power box 1, the moisture in the external air will make the flexible moisture absorbent member 1 32 and the flexible moisture absorbent member 2 42 wet when they come into contact with each other. The flexible moisture absorbent member 1 32 and the flexible moisture absorbent member 2 42 can prevent moisture in the air from entering the working area of the power box 1. As the moisture attached to the surface of the flexible moisture absorbent member 1 32 and the flexible moisture absorbent member 2 42 increases, the air permeability of the flexible moisture absorbent member 1 32 and the flexible moisture absorbent member 2 42 gradually weakens, making the working area of the power box 1 and the external air more and more wet. The air exchange capacity becomes worse. When the passive cooling cannot meet the temperature control requirements of the power box 1, the active heat dissipation mechanism 2 is started to actively cool the inside of the power box 1. The heat dissipation fan blades 22 draw in external air, and the external air enters the isolation area through the air inlet 11. The dry gas after being absorbed by the flexible moisture-absorbing member 32 enters the working area of the power box 1, and finally the high-temperature gas is discharged through the flexible moisture-absorbing member 42. In the process of the heat dissipation fan blades 22 continuously rotating to draw in external air, the flexible moisture-absorbing member 32 is driven to move to ensure that the air enters through the air inlet 11. The gas entering the isolation area contacts different positions of the flexible moisture-absorbing member 32 to prevent some areas of the flexible moisture-absorbing member 32 from absorbing too much water and becoming saturated, which causes the water absorption and air permeability of the flexible moisture-absorbing member 32 to deteriorate. After the dry gas enters the working area of the power box 1, the flexible moisture-absorbing member 42 also absorbs more water, and its air permeability deteriorates. The gas in the working area of the power box 1 continues to increase, making the air pressure in the working area of the power box 1 slightly higher than the external air pressure. Under the action of the air pressure, the adjustment plate 41 is pushed to rotate. Figure 6 The status diagram of the middle adjustment plate 41 shows that the heat dissipation hole 12 is in the open state at this time. Since the gas in the working area of the power box 1 is continuously discharged through the heat dissipation hole 12, the moisture in the external air cannot enter the working area of the power box 1 through the heat dissipation hole 12. In the process of the air in the working area of the power box 1 being discharged through the heat dissipation hole 12, the gas can actively dry the flexible moisture absorbent part 2 42 when passing through the flexible moisture absorbent part 2 42. When the temperature sensor detects that the temperature in the power box 1 has improved, the heat dissipation fan blades 22 stop rotating. At this time, the adjustment plate 41 is reset under the action of gravity, and the heat dissipation hole 12 is blocked again. The working area in the power box 1 and the outside can only exchange gas through the flexible moisture absorbent part 1 32 and the flexible moisture absorbent part 2 42.

[0033] It is worth mentioning that guide plates 13 can be set on both sides of the working area of the power box 1. The guide plates 13 are set to be tilted upward to prevent excessive droplets attached to the flexible moisture-absorbing part 2 42 from flowing onto the components of the power conversion module when passive heat dissipation is performed inside the power box 1.

[0034] Compared with the prior art, air enters the power box 1 through the air inlet 11, ensuring that the gas entering the isolation area through the air inlet 11 contacts different positions of the flexible moisture-absorbing component 32, further absorbing moisture in the gas, and avoiding that some positions on the flexible moisture-absorbing component 32 absorb too much moisture and become saturated, resulting in poor air permeability. In addition, by setting the adjustment plate 41 and the flexible moisture-absorbing component 42, the moisture in the air is absorbed while the air inside and outside the power box 1 can circulate, and the moisture in the air is avoided from entering the power box 1 through the air inlet 11 and the heat dissipation hole 12, so that the working area of the power box 1 is always kept dry, which can prevent electrical short circuits, degradation of insulation performance and damage to electronic components, and ensure that the power supply can operate normally and stably.

[0035] Refer to the instruction manual Figures 1 to 4 If the moisture content in the air is high, the moisture adsorbed on the flexible moisture absorbent member 32 will increase during the continuous use of the flexible moisture absorbent member 32. If the moisture absorbed by the flexible moisture absorbent member 32 is saturated, its water absorption capacity will deteriorate. In order to actively remove the moisture in the flexible moisture absorbent member 32 and keep the flexible moisture absorbent member 32 in the best use state at all times, specifically, the isolation and protection mechanism 3 also includes a rotary drive, which is fixedly arranged on the inner wall of the power supply box 1. The rotary drive is located in the isolation area. A guide roller 31 is fixedly arranged on the output end of the rotary drive. A plurality of guide rollers 2 are also rotatably arranged in the isolation area of the power supply box 1. The flexible moisture absorbent member 32 is transmitted on the guide roller 31 and the plurality of guide rollers 2. Two squeezing rollers 33 are rotatably arranged in the isolation area of the power supply box 1. The flexible moisture absorbent member 32 is located between the two squeezing rollers 33. The two squeezing rollers 33 squeeze the flexible moisture absorbent member 32 by synchronously rotating in opposite directions. A deflector 35 is fixedly mounted within the power supply box 1. The air inlet 11 is located within the deflector 35. A dust filter is fixedly mounted within the deflector 35. Flexible moisture-absorbing member 1 32 slides with the deflector 35. Gears are fixedly mounted on both squeeze rollers 33, meshing with each other. Pulleys are fixedly mounted on both the gears and the second guide roller, and both pulleys are driven by a common belt.

[0036] It should be noted that the provision of the air deflector 35 can better control the flow direction of the gas entering the air inlet 11 from the outside, and in order to filter out foreign particles and dust in the air, a dust filter is provided in the air deflector 35. When the air enters the power box 1, the dust filter can block and intercept the dust and impurities in the air, thereby preventing dust and impurities from entering the working area of the power box 1 and adhering to the power conversion module, thereby keeping the power conversion module in the best working condition.

[0037] It should also be noted that the rotation driver is configured as a motor, and the output shaft of the motor is fixedly disposed to the guide roller 1 31 .

[0038] In this embodiment, when it is necessary to drive the heat dissipation fan blades 22 to rotate for active heat dissipation in the power box 1, the rotation driver is started, and the output end of the rotation driver drives the guide roller 31 to rotate. Since the flexible moisture-absorbing member 32 is mounted on the guide roller 31 and multiple guide rollers 2, the rotation of the guide roller 31 will drive the flexible moisture-absorbing member 32 to transmit on the guide roller 31 and the guide roller 2, so that the flexible moisture-absorbing member 32 continues to slide in the air guide cover 35. In this way, the gas entering the power box 1 can contact different positions of the flexible moisture-absorbing member 32, and the guide roller 2 drives the pulley to rotate during the rotation of the guide roller 2, and the pulley drives the belt drive gear to rotate. The two gears are engaged to drive the two squeezing rollers 33 to rotate in the opposite direction. While the two squeezing rollers 33 rotate in the opposite direction, the flexible moisture-absorbing member 32 is also moving, squeezing out the moisture in the flexible moisture-absorbing member 32. A heating module can also be set in the power box 1. The heating module is used to increase the temperature of the flexible moisture-absorbing member 32, thereby accelerating the drying speed of the flexible moisture-absorbing member 32.

[0039] Compared with the prior art, in which the flexible hygroscopic member 32 is tightened and the circular shaft is driven to rotate so as to roll up the flexible hygroscopic member 32, thereby deforming the flexible hygroscopic member 32 and squeezing out the moisture in the flexible hygroscopic member 32, a certain pulling force is generated on the flexible hygroscopic member 32 when the tightened flexible hygroscopic member 32 is rolled up. The pulling force causes the pore size of the adjacent pores of the flexible hygroscopic member 32 to become larger, which has a negative impact on the water absorption capacity of the flexible hygroscopic member 32. The solution adopted in this solution to remove moisture from the flexible hygroscopic member 32 will not affect the water absorption capacity of the flexible hygroscopic member 32, thereby further ensuring the effect of removing moisture from the air.

[0040] Refer to the instruction manual Figure 5 and Figure 6The adjustment plate 41 is flipped by the airflow of the active cooling in the power box 1. When the active cooling in the power box 1 stops, the adjustment plate 41 is reset under the action of gravity. In order to prevent the adjustment plate 41 from being unable to fully reset, resulting in the heat dissipation hole 12 being in an open state, specifically, a through hole is opened on the adjustment plate 41, and the flexible moisture-absorbing member 42 is fixedly arranged in the through hole. A baffle 43 is fixedly arranged on the inner wall of the power box 1, and the baffle 43 is adapted to the edge of the adjustment plate 41. The adjustment plate 41 and the baffle 43 are both provided with mounting grooves, and magnets 44 are fixedly arranged in the two mounting grooves, and the two corresponding magnets 44 are adapted.

[0041] It should be noted that when active cooling is stopped in the power box 1, the adjustment plate 41 is reset under the action of gravity, and the bottom of the adjustment plate 41 can continue to rotate under the magnetic effect of the magnet 44 to ensure that the side of the adjustment plate 41 is in contact with the baffle 43. At this time, the heat dissipation hole 12 is in a completely closed state.

[0042] It should also be noted that by setting the baffle 43, the rotation direction of the adjustment plate 41 can be limited to prevent the adjustment plate 41 from rotating in the opposite direction, which can prevent insects from entering the power box 1. When there is wind in the environment, it can also prevent the adjustment plate 41 from being blown away.

[0043] Refer to the instruction manual Figure 4 In order to prevent dust and impurities in the air from entering the power box 1, a dust filter is set in the air guide cover 35. When the power box 1 is actively cooled and dissipated, the air flow will flow into the power box 1 in one direction, causing some dust and impurities to accumulate in the mesh on one side of the dust filter, resulting in the mesh being blocked. In addition, due to the high moisture content in the air, the surface tension of small water droplets combined with dust and impurities will further reduce the air permeability of the mesh. These dust and impurities need to be cleaned regularly by the staff. If the dust filter is not cleaned in time, it will affect the air intake capacity, resulting in the overall heat dissipation in the power box 1. The effect is deteriorated. In order to be able to actively clean the dust filter, specifically, a collection box 34 is provided in the power box 1. The collection box 34 is located directly below the squeezing roller 33. A dust removal mechanism 5 is provided in the power box 1. The dust removal mechanism 5 includes a pump 51. The pump 51 is fixedly arranged in the power box 1. The liquid inlet end of the pump 51 is fixedly connected to the collection box 34. The liquid discharge end of the pump 51 is fixedly connected to a flexible tube 52. A nozzle is fixedly provided on the flexible tube 52. A linear drive 53 is fixedly provided in the air guide cover 35. The output end of the linear drive 53 is fixedly provided with a support plate 531. The support plate 531 is fixedly provided with the nozzle.

[0044] It should be noted that the linear drive 53 is configured as a linear motor, and the nozzle is fixedly disposed at the output end of the linear motor.

[0045] It should also be noted that the squeezing roller 33 rotates in the opposite direction to squeeze the flexible moisture-absorbing member 1 32 . The moisture within the flexible moisture-absorbing member 1 32 is retained in the collection box 34 . The pump 51 is activated to extract the water from the collection box 34 . The water is then sprayed onto the dust filter through the nozzle, actively flushing and cleaning the accumulated dust. Water spraying is more efficient than air jet cleaning. A guide plate is installed within the deflector 35 to prevent the moisture sprayed onto the dust filter from accumulating within the power supply box 1 .

[0046] Refer to the instruction manual Figure 4 and Figure 7 In order to improve the water absorption capacity of the flexible moisture absorbent member 32, it is necessary to use a flexible moisture absorbent member 32 that is as long as possible. Since the space in the isolation area in the power box 1 is limited, it is necessary to change the setting direction of the flexible moisture absorbent member 32 in the power box 1 by the guide roller 31 and the guide roller 2. When the transmission direction of the flexible moisture absorbent member 32 is changed by the guide roller 31 and the guide roller 2, in order to avoid the squeezing force caused by the guide problem between the water contained on the surface of the flexible moisture absorbent member 32 and the guide roller 31 or the guide roller 2, which causes water droplets to fall into the power box 1, specifically, an annular groove is provided on the guide roller 31, and a plurality of support shafts 311 are fixedly provided in the annular groove. The support shafts 311 are distributed circumferentially along the central axis of the guide roller 31. The flexible moisture absorbent member 32 includes a flexible moisture absorbent layer 321 and a flexible support layer 322. The flexible support layer 322 is arranged at the edge of the flexible moisture absorbent layer 321. The flexible support layer 322 is in rolling contact with the guide roller 31, and the end of the support shaft 311 is in contact with the flexible moisture absorbent layer 321.

[0047] It should be noted that the raw materials of the flexible support layer 322 include but are not limited to rubber, and there are latches on the guide roller 1 31 and the guide roller 2, and grooves are opened on the flexible support layer 322, and the latches and the grooves are engaged with each other. When the guide roller 1 31 rotates, the flexible hygroscopic layer 1 321 is driven to rotate by the coordination between the latches and the grooves, thereby driving the flexible hygroscopic layer 1 321 to move, avoiding squeezing of the flexible hygroscopic layer 1 321 and causing water droplets to fall on the bottom of the power box 1. By setting the support shaft 311, the flexible hygroscopic layer 1 321 can be leveled and supported, avoiding wrinkles in the flexible hygroscopic layer 1 321 during transmission. The guide roller 2 also adopts the design of the support shaft 311.

[0048] Refer to the instruction manual Figures 1 to 3 In order to improve the effect of active heat dissipation in the power box 1, specifically, the active heat dissipation mechanism 2 includes a bracket 21, a motor is fixedly arranged in the bracket 21, a heat dissipation fan blade 22 is fixedly arranged on the output shaft of the motor, and a heat pipe 23 is fixedly arranged in the bracket 21.

[0049] It should be noted that the rotation of the motor output shaft drives the heat dissipation fan blades 22 to rotate. The heat pipe 23 is a highly efficient heat transfer element that transfers heat through the evaporation and condensation process of the internal working fluid. In the heat dissipation system of the active heat dissipation mechanism 2, the heat pipe 23 is usually used to quickly transfer heat from the heat source to the heat sink, and then the fan dissipates the heat into the air.

[0050] The above embodiments merely illustrate 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 a person skilled in the art would be able to make numerous variations and improvements without departing from the scope of the present invention, all of which fall within the scope of protection of the present invention.

Claims

1. A high voltage DC power supply with an isolation protection device, characterized in that: The invention comprises a power supply box (1) and a power conversion module arranged in the power supply box (1), wherein a perforated partition is fixedly arranged in the power supply box (1), an isolation zone is formed between the bottom of the perforated partition and the inner wall of the bottom side of the power supply box (1), a working zone is formed between the top of the perforated partition and the inner wall of the top side of the power supply box (1), and the power conversion module is located in the working zone. An air inlet (11) and a heat dissipation hole (12) are provided on the power supply box (1), wherein the air inlet (11) is located in the isolation zone, and the heat dissipation hole (12) is located in the working zone. An active heat dissipation mechanism (2) is provided on the perforated partition plate, and the active heat dissipation mechanism (2) includes heat dissipation fan blades (22). The heat dissipation fan blades (22) rotate to allow air outside the power box (1) to enter the isolation area through the air inlet holes (11), and the air in the working area is discharged through the heat dissipation holes (12); An isolation protection mechanism (3) is provided in the isolation area, and the isolation protection mechanism (3) includes a flexible moisture-absorbing member (32). The flexible moisture-absorbing member (32) rotates to change the contact position between the gas continuously entering the isolation area and the flexible moisture-absorbing member (32). A shielding mechanism (4) is provided in the working area, and the shielding mechanism (4) includes an adjustment plate (41). The adjustment plate (41) is adapted to the heat dissipation hole (12). The adjustment plate (41) is provided with a flexible moisture-absorbing member (42). The adjustment plate (41) isolates the power box (1) from the outside by blocking the heat dissipation hole (12).

2. The high-voltage DC power supply with an isolation protection device according to claim 1, characterized in that: The isolation protection mechanism (3) further includes a rotation driver, which is fixedly arranged on the inner wall of the power supply box (1). The rotation driver is located in the isolation area. A guide roller 1 (31) is fixedly arranged on the output end of the rotation driver. A plurality of guide rollers 2 are also rotatably arranged in the isolation area of the power supply box (1). The flexible hygroscopic member 1 (32) is transmission-arranged on the guide roller 1 (31) and the plurality of guide rollers 2. Two squeezing rollers (33) are rotatably arranged in the isolation area of the power supply box (1). The flexible hygroscopic member 1 (32) is located between the two squeezing rollers (33). The two squeezing rollers (33) extrude the flexible hygroscopic member 1 (32) by synchronously rotating in opposite directions.

3. The high-voltage DC power supply with an isolation protection device according to claim 2, characterized in that: A deflector (35) is fixedly provided in the power supply box (1), the air inlet (11) is located in the deflector (35), a dust filter is fixedly provided in the deflector (35), and the flexible moisture-absorbing member (32) is slidably provided with the deflector (35).

4. The high-voltage DC power supply with an isolation protection device according to claim 3, characterized in that: The regulating plate (41) is provided with a through hole, the flexible moisture-absorbing member (42) is fixedly arranged in the through hole, and a baffle (43) is fixedly arranged on the inner wall of the power box (1), and the baffle (43) is adapted to the edge of the regulating plate (41).

5. The high-voltage DC power supply with an isolation protection device according to claim 4, characterized in that: A collecting box (34) is provided in the power box (1), and the collecting box (34) is located directly below the squeezing roller (33). A dust removal mechanism (5) is provided in the power box (1), and the dust removal mechanism (5) includes a pump (51). The pump (51) is fixedly provided in the power box (1), and the liquid inlet end of the pump (51) is fixedly connected to the collecting box (34). The liquid discharge end of the pump (51) is fixedly connected to a flexible tube (52), and a nozzle is fixedly provided on the flexible tube (52). A linear drive (53) is fixedly provided in the deflector (35), and the output end of the linear drive (53) is fixedly provided to the nozzle.

6. The high-voltage DC power supply with an isolation protection device according to claim 5, characterized in that: An annular groove is provided on the guide roller (31), and a plurality of support shafts (311) are fixedly arranged in the annular groove. The flexible hygroscopic member (32) comprises a flexible hygroscopic layer (321) and a flexible support layer (322). The flexible support layer (322) is arranged at the edge of the flexible hygroscopic layer (321). The flexible support layer (322) is in rolling contact with the guide roller (31), and the end of the support shaft (311) is in contact with the flexible hygroscopic layer (321).

7. The high-voltage DC power supply with an isolation protection device according to claim 6, characterized in that: The active heat dissipation mechanism (2) comprises a bracket (21), a motor is fixedly arranged in the bracket (21), the heat dissipation fan blades (22) are fixedly arranged on the output shaft of the motor, and a heat pipe (23) is fixedly arranged in the bracket (21).

8. The high-voltage DC power supply with an isolation protection device according to claim 7, characterized in that: A support plate (531) is fixedly provided at the output end of the linear drive (53), and the support plate (531) is fixedly provided with the nozzle.

9. The high-voltage DC power supply with an isolation protection device according to claim 8, characterized in that: The adjustment plate (41) and the baffle (43) are both provided with mounting grooves, and magnets (44) are fixedly arranged in the two mounting grooves, and the two corresponding magnets (44) are adapted to each other.

10. The high-voltage DC power supply with an isolation protection device according to claim 9, characterized in that: Gears are fixedly provided on the two squeezing rollers (33), the two gears are meshed with each other, pulleys are fixedly provided on the gears and the second guide roller, and the two pulleys are driven by the same belt.

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