Ventilation and dehumidification system and outdoor power distribution cabinet with same

Abstract

The invention discloses a ventilation and dehumidification system and an outdoor power distribution cabinet with the ventilation and dehumidification system, and particularly relates to the technical field of electrical equipment, the ventilation and dehumidification system comprises a cabinet body and a cabinet door arranged on the cabinet body, the air outlet and the air inlet of the cabinet body are respectively provided with a heat dissipation assembly and a filtering assembly, and the air inlet of the cabinet body is provided with a dehumidification assembly. According to the invention, through the arrangement of the filtering assembly, when external air enters the cabinet body from the air inlet and the air outlet of the cabinet body, the water absorption piece absorbs moisture and moisture in the air in the air circulation process, so that the moisture is prevented from directly entering the cabinet body, on one hand, the burden of the heat dissipation assembly and the dehumidification device can be reduced, and the maintenance frequency and cost can be reduced; on the other hand, the problems of element damp, insulation performance reduction, even short circuit, electric leakage and the like caused by the fact that moisture frequently enters the power distribution cabinet can be avoided, normal operation of the equipment is guaranteed, and the service life of the equipment is further prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of electrical equipment, and more specifically, to a ventilation and dehumidification system and an outdoor power distribution cabinet having the same. Background Art

[0002] Outdoor distribution cabinets, also known as outdoor distribution cabinets or outdoor switch cabinets, are electrical equipment specially designed for installation outdoors to receive, distribute and control electrical energy. They are commonly used in the transmission and distribution links of power systems, especially in substations, industrial facilities, commercial buildings, and outdoor public facilities.

[0003] A Chinese patent with application number 202110852345.X discloses an outdoor open-air electrical control cabinet with a dehumidification function, including a base, a box body above the base, a box door on the front side of the box body, an air inlet device inside the box body and near the lower left corner, a heating device on the right side of the air inlet device, and an exhaust device inside the box body and near the upper right corner; a first motor drives the air intake fan to rotate to allow air to enter the interior of the box body, a drying box dries the air, and the heating device heats the air to form a dry hot air flow, thereby increasing the evaporation of moisture in the box body and achieving the purpose of rapid dehumidification; the second motor drives the exhaust fan to rotate, so that the air inside the box body flows quickly from the lower left corner to the upper right corner, avoiding the stagnation of humid air inside the box body, thereby quickly dissipating the humid air, achieving the purpose of quickly dehumidifying the electrical control cabinet, and the interior of the electrical control cabinet can be dissipated to facilitate the operation of electronic equipment.

[0004] Although the above invention can evaporate the moisture in the box through heated airflow to achieve the purpose of dehumidification, during rainy or humid seasons, the air humidity is high and moisture is more likely to invade the interior of the distribution cabinet through the air inlet of the distribution cabinet, which will cause the electronic components inside the distribution cabinet to be exposed to a humid environment for a long time, and the heating device and the heat dissipation device need to be turned on frequently or for a long time, resulting in energy waste. In addition, frequent adjustment of heating and ventilation will make it difficult to stabilize the temperature and humidity conditions inside the distribution cabinet, which may cause unstable operation of the equipment and affect its normal operation.

[0005] The present invention provides a ventilation and dehumidification system and an outdoor power distribution cabinet having the same, aiming to solve the problem that moisture easily invades the interior of the power distribution cabinet through the air inlet, causing the heating device and the heat dissipation device to be frequently turned on or turned on for a long time, resulting in energy waste, causing unstable operation of the equipment and affecting its normal operation. Summary of the invention

[0006] The purpose of the present invention is to provide a ventilation and dehumidification system and an outdoor distribution cabinet having the same, so as to solve the problem mentioned in the above background technology that moisture can easily invade the interior of the distribution cabinet from the air inlet of the distribution cabinet, causing the heating device and the heat dissipation device to be frequently turned on or turned on for a long time, resulting in energy waste, causing unstable operation of the equipment and affecting its normal operation.

[0007] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a ventilation and dehumidification system, comprising a heat dissipation component, a filter component and a dehumidification component, the heat dissipation component comprising an installation box, one side of the installation box is fixedly connected to a limiting plate, the filter component comprises a water absorbent member arranged inside the installation box and in contact with the limiting plate, the interior of the installation box is fixedly connected to a support member, the interior of the installation box is slidably connected with an extrusion plate between the water absorbent member and the support member, the interior of the installation box is slidably connected with a sealing plate between the extrusion plate and the support member, a plurality of first air holes are evenly provided on the extrusion plate, a plurality of second air holes are evenly provided on the sealing plate, a sealing plug having the same number and corresponding position as the first air holes is fixedly connected to one side of the sealing plate close to the extrusion plate, and when the sealing plate moves toward the direction of the water absorbent member, a plurality of the sealing plugs can be inserted into the corresponding first air holes for sealing, and the extrusion plate can squeeze the water absorbent member.

[0008] Preferably, a plurality of evenly distributed filter holes are provided on both sides of the water absorbent member for air circulation, a plurality of groups of staggered guide grooves are evenly provided inside the water absorbent member, each of the filter holes is connected to the corresponding guide groove, and every two adjacent guide grooves are connected through staggered connecting grooves.

[0009] Preferably, the limit plate is provided with a plurality of ventilation holes for gas circulation, a side of the interior of the installation box away from the limit plate is fixedly connected to a motor via a supporting structure, and an output end of the motor away from the limit plate is fixedly connected to a fan blade.

[0010] Preferably, a rotating sleeve is rotatably connected to the support member, and a driving groove is opened on one end of the rotating sleeve close to the motor. The other output end of the motor away from the fan blade is rotatably connected to the driving groove, and a plurality of evenly distributed first magnetic parts are fixedly embedded on the circumferential outer wall of the other output end of the motor away from the fan blade, and a plurality of second magnetic parts with the same number and corresponding positions as the first magnetic parts are fixedly embedded on the circumferential inner wall of the driving groove, and the magnetic poles of every two adjacent first magnetic parts are oppositely arranged, and the magnetic poles of every two adjacent second magnetic parts are oppositely arranged.

[0011] Preferably, a rotating groove is provided at the end of the rotating sleeve away from the motor, a driving rod is rotatably connected inside the rotating groove, a sliding sleeve is fixedly connected to the side of the sealing plate close to the support member, the sliding sleeve is sleeved on the outer wall of the driving rod, an elastic member is connected between the end of the driving rod located inside the rotating groove and the rotating groove, a guide groove arranged in a spiral shape is provided on the circumferential outer wall of the driving rod, a guide rod slidably connected to the guide groove is fixedly connected inside the sliding sleeve, and when the driving rod rotates, the sliding sleeve and the sealing plate can be driven to slide inside the mounting box through the cooperation of the guide groove and the guide rod.

[0012] Preferably, the interior of the installation box is fixedly connected to a limit block, the blocking plate is provided with an avoidance groove corresponding to the position of the limit block, a side of the extrusion plate close to the blocking plate is fixedly connected to a support plate, a sliding groove corresponding to the position of the support plate is provided on the blocking plate, the support plate is slidably connected in the sliding groove, the support plate extends to a side of the blocking plate away from the extrusion plate and is fixedly connected to a limit strip, and a drainage groove is provided inside the installation box below the water absorbing member; When the blocking plate moves in a direction away from the water absorbing member, the blocking plate can drive the extrusion plate to move in a direction away from the water absorbing member through the limiting strip and the supporting plate.

[0013] Preferably, the dehumidification assembly comprises a mounting frame, the mounting frame is fixedly connected to a side of the mounting box away from the water absorbing member, and a plurality of heating tubes for heating the air are installed inside the mounting frame.

[0014] The present invention also provides an outdoor power distribution cabinet, comprising: Ventilation and dehumidification system; A cabinet body and a cabinet door arranged on the cabinet body, wherein the upper part of the cabinet body is provided with at least one air outlet, the lower part of the cabinet body is provided with at least one air inlet, at least two groups of heat dissipation components are respectively arranged at the air inlet and the air outlet of the cabinet body, at least two groups of dehumidification components are respectively arranged in the two groups of heat dissipation components, and at least one group of dehumidification components is arranged in the heat dissipation component located at the air inlet of the cabinet body; A temperature and humidity monitoring device and a controller are arranged inside the cabinet.

[0015] Preferably, a water outlet trough is provided on the outer wall of the cabinet below the air inlet, and a flow guide is fixedly connected to the bottom of the installation box located at the air inlet of the cabinet.

[0016] Preferably, a rain cover is installed on the outer wall of the cabinet at the air outlet, a dust cover is installed on the outer wall of the cabinet at the air inlet, and a rain cover is installed on the top of the cabinet.

[0017] Technical effects and advantages of the present invention: 1. The present invention sets a filter component. When external air enters the cabinet from the cabinet air inlet and outlet, the water absorbent absorbs moisture and water in the air during the air circulation process, preventing moisture from directly entering the cabinet and avoiding frequent startup of the heat dissipation component and the dehumidification component. On the one hand, it can reduce the burden of the heat dissipation component and the dehumidification device, reduce the maintenance frequency and cost, thereby reducing energy consumption and extending the life of the equipment. On the other hand, it can prevent moisture from frequently entering the distribution cabinet, causing components to become damp, insulation performance to deteriorate, and even causing short circuits, leakage, and other problems, thereby ensuring the normal operation of the equipment and further extending the life of the equipment. 2. The present invention arranges structures such as an extrusion plate, a sealing plate and a drainage groove. When the water absorbing member gradually becomes saturated with water, it can cooperate with the heat dissipation component to drive the sealing plate and the extrusion plate to move toward the water absorbing member to squeeze the water absorbing member, squeeze the water in the water absorbing member to the drainage groove, and discharge it to the outside of the cabinet, thereby ensuring that the water absorbing member does not lose the ability to filter moisture due to water saturation, and can continuously keep the environment in the distribution box dry and maintain the stability of the environment in the cabinet, thereby improving the reliability and stability of the entire distribution system. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0019] Figure 2 It is a schematic diagram of the internal structure of the cabinet of the present invention.

[0020] Figure 3 It is a schematic diagram of the positions of the heat dissipation component and the dehumidification component of the present invention.

[0021] Figure 4 It is a schematic diagram of the structure of the installation box part of the present invention.

[0022] Figure 5 This is a cross-sectional view of the internal structure of the installation box of the present invention.

[0023] Figure 6 For the present invention Figure 5 A-section structure enlarged view.

[0024] Figure 7 It is an exploded view of the filter assembly of the present invention.

[0025] Figure 8 It is a schematic diagram of the structural coordination of the extrusion plate and the blocking plate of the present invention.

[0026] Fig. 9 It is an exploded view of the rotating sleeve part of the present invention.

[0027] Fig.10 It is a structural schematic diagram of the rotating sleeve of the present invention.

[0028] Fig.11 It is a schematic diagram of the structure of the water absorbing member of the present invention.

[0029] Fig.12 It is a cross-sectional view of the internal structure of the water-absorbing member of the present invention.

[0030] Fig.13 It is a cross-sectional view of the positions of the guide groove and the connecting groove of the present invention.

[0031] The accompanying drawings are marked as follows: 1, cabinet body; 11, cabinet door; 12, temperature and humidity monitoring device; 13, controller; 14, water outlet groove; 15, guide member; 16, rain cover; 17, dust cover; 18, rain cover; 2, heat dissipation component; 21, installation box; 22, limit plate; 23, vent hole; 24, motor; 25, fan blade; 3, filter component; 31, water absorbing member; 32, filter hole; 33, guide groove; 34, connecting groove; 35, support member; 36, rotating sleeve; 37, driving groove; 38, first magnetic 39. The second magnetic part; 310. The extrusion plate; 311. The blocking plate; 312. The first air hole; 313. The second air hole; 314. The blocking plug; 315. The rotating groove; 316. The driving rod; 317. The elastic part; 318. The sliding sleeve; 319. The guide groove; 320. The guide rod; 321. The limiting block; 322. The avoiding groove; 323. The supporting plate; 324. The sliding groove; 325. The limiting strip; 326. The drain groove; 4. The dehumidification component; 41. The mounting frame; 42. The heating tube. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] Embodiment 1 During the rainy or humid season, the air humidity is high, and moisture is more likely to invade the inside of the distribution cabinet from the air inlet. This will cause the electronic components inside the distribution cabinet to be exposed to a humid environment for a long time, making it necessary for the heating and cooling devices to be turned on frequently or for a long time, resulting in energy waste. In addition, frequent adjustments to heating and ventilation will make it difficult to stabilize the temperature and humidity conditions inside the distribution cabinet, which may cause unstable operation of the equipment and affect its normal operation.

[0034] refer to Figures 1 to 13 , a ventilation and dehumidification system according to an embodiment of the present invention comprises a heat dissipation component 2, a filter component 3 and a dehumidification component 4; refer to Figures 2 to 5The heat dissipation assembly 2 includes an installation box 21, one side of the installation box 21 is fixedly connected to a limiting plate 22, and a plurality of vents 23 for gas circulation are provided on the limiting plate 22. A motor 24 is fixedly connected to the side of the installation box 21 away from the limiting plate 22 through a supporting structure, and a fan blade 25 is fixedly connected to the output end of the motor 24 away from the limiting plate 22.

[0035] refer to Figures 5 to 13 The filter component 3 includes a water-absorbing member 31 arranged inside the installation box 21 and attached to the limit plate 22. The water-absorbing member 31 can be a memory sponge, which is used to absorb moisture and water at the air outlet and the air inlet of the cabinet 1, and cooperate with the heat dissipation component 2 and the dehumidification component 4 to discharge the moisture and water absorbed by the water-absorbing member 31. A number of evenly distributed filter holes 32 are opened on both sides of the water-absorbing member 31 for air circulation. A plurality of groups of staggered guide grooves 33 are evenly opened inside the water-absorbing member 31. Each filter hole 32 is connected to the corresponding guide groove 33, and every two adjacent guide grooves 33 are connected through staggered connecting grooves 34.

[0036] When air containing moisture and water enters the water absorbent member 31 through one group of filter holes 32, a plurality of staggered connecting grooves 34 and a plurality of staggered guide grooves 33 enable the air to flow in a staggered manner inside the water absorbent member 31, and the water absorbent member 31 can absorb moisture and water during the air circulation process.

[0037] refer to Figure 3 , Figure 4 and Figure 7 The dehumidification assembly 4 includes a mounting frame 41, which is fixedly connected to a side of the mounting box 21 away from the water absorbing member 31, and a plurality of heating tubes 42 for heating the air are installed inside the mounting frame 41.

[0038] refer to Figures 1 to 3 The present embodiment also provides an outdoor power distribution cabinet, comprising the above-mentioned ventilation and dehumidification system, a cabinet body 1 and a cabinet door 11 arranged on the cabinet body 1; at least one air outlet is arranged at the upper part of the cabinet body 1, and at least one air inlet is arranged at the lower part of the cabinet body 1. At least two groups of heat dissipation components 2 are respectively arranged at the air inlet and the air outlet of the cabinet body 1, at least two groups of dehumidification components 4 are respectively arranged in the two groups of heat dissipation components 2, and at least one group of dehumidification components 4 is arranged in the heat dissipation component 2 located at the air inlet of the cabinet body 1.

[0039] refer to Figure 2 and Figure 3 A temperature and humidity monitoring device 12 and a controller 13 are provided inside the cabinet 1. The temperature and humidity monitoring device 12 is used to monitor the temperature and humidity conditions inside the cabinet 1 and transmit the signal to the controller 13. The controller 13 can control the start and stop of the heat dissipation component 2 and the dehumidification component 4 according to the monitoring data of the temperature and humidity monitoring device 12.

[0040] refer to Figure 3 A water outlet groove 14 is provided on the outer wall of the cabinet 1 below the air inlet, and a guide member 15 connecting the water outlet groove 326 and the water outlet groove 14 is fixedly connected to the bottom of the installation box 21 located at the air inlet of the cabinet 1, and the water outlet groove 326 located at the air outlet of the cabinet 1 is located on the outside of the cabinet 1.

[0041] refer to Figure 1 A rain cover 16 is installed on the outer wall of the cabinet 1 at the air outlet, a dust cover 17 is installed on the outer wall of the cabinet 1 at the air inlet, and a rain cover 18 is installed on the top of the cabinet 1.

[0042] It should be noted that the blade angles of the two fan blades 25 at the air inlet and the air outlet of the cabinet 1 are set in opposite directions. The fan blades 25 located at the air inlet of the cabinet 1 are used to draw external air into the cabinet 1, and the fan blades 25 located at the air outlet of the cabinet 1 are used to draw the internal air of the cabinet 1 to the outside.

[0043] During actual operation, when external air enters the cabinet 1 from the air inlet and outlet of the cabinet 1, the air will first enter the installation box 21 through the vent 23, and then enter the water absorbent 31 through a plurality of filter holes 32 on one side of the water absorbent 31, and then circulate in the water absorbent 31 through a plurality of staggered connecting grooves 34 and a plurality of staggered guide grooves 33. The water absorbent 31 will absorb moisture and water in the air during the staggered circulation of air, thereby preventing moisture from directly entering the cabinet 1 and avoiding frequent startup of the heat dissipation component 2 and the dehumidification component 4.

[0044] The heat emitted by the electronic components in the cabinet 1 when working can dry the moisture and water absorbed by the water absorbing member 31 , thereby improving the overall water absorption capacity of the water absorbing member 31 .

[0045] When the temperature and humidity monitoring device 12 detects that the temperature inside the cabinet 1 is too high, the controller 13 controls the motors 24 at the air inlet and the air outlet of the cabinet 1 to start, and the motors 24 at the air inlet and the air outlet drive the corresponding fan blades 25 to rotate. When the fan blades 25 located at the air inlet of the cabinet 1 rotate, external air can be drawn into the cabinet 1, and the fan blades 25 located at the air outlet of the cabinet 1 can draw the air inside the cabinet 1 to the outside, so that the air in the cabinet 1 can circulate quickly, thereby ventilating and cooling the cabinet 1.

[0046] When the temperature and humidity monitoring device 12 detects that the humidity in the cabinet 1 is too high, the controller 13 controls the motor 24 at the air inlet and the air outlet of the cabinet 1 and the heating tube 42 to start. The heating tube 42 can heat the air drawn into the cabinet 1 by the fan blades 25 at the air inlet, so that the incoming air is dry hot air, thereby allowing the dry hot air to circulate in the cabinet 1 to dehumidify the cabinet 1.

[0047] To sum up, through the setting of the filter component 3, when external air enters the cabinet 1 from the air inlet and outlet of the cabinet 1, the water absorbent 31 will absorb the moisture and water in the air during the air circulation process, preventing moisture from directly entering the cabinet 1, and avoiding frequent startup of the heat dissipation component 2 and the dehumidification component 4. On the one hand, it can reduce the burden on the heat dissipation component 2 and the dehumidification component 4, reduce the maintenance frequency and cost, thereby reducing energy consumption and extending the life of the equipment. On the other hand, it can avoid moisture frequently entering the cabinet 1, causing components to become damp, insulation performance to deteriorate, and even causing short circuits, leakage and other problems, thereby ensuring the normal operation of the equipment and further extending the life of the equipment.

[0048] Embodiment 2 In actual use, although the water absorbent 31 can absorb moisture and water in the air and can dry them through the heat emitted by the electronic components in the cabinet 1 when they are working, the air humidity is high during rainy season or humid season, and the heat emitted by the electronic components when they are working cannot completely dry the water absorbent 31. The water absorbent 31 will gradually become saturated with water, which will lead to a decrease in air circulation effect and moisture filtering effect. Therefore, this embodiment improves the device described in the above embodiment.

[0049] refer to Figures 5 to 10 A support member 35 is fixedly connected to the inside of the installation box 21, and a rotating sleeve 36 is rotatably connected to the support member 35. A driving groove 37 is opened at one end of the rotating sleeve 36 close to the motor 24, and the other output end of the motor 24 away from the fan blades 25 is rotatably connected in the driving groove 37. A plurality of evenly distributed first magnetic members 38 are fixedly embedded in the circumferential outer wall of the other output end of the motor 24 away from the fan blades 25, and a second magnetic member 39 with the same number and corresponding position as the first magnetic members 38 is fixedly embedded in the circumferential inner wall of the driving groove 37. The magnetic poles of every two adjacent first magnetic members 38 are oppositely arranged, and the magnetic poles of every two adjacent second magnetic members 39 are oppositely arranged. The other output end of the motor 24 away from the fan blades 25 can drive the rotating sleeve 36 to rotate through the magnetic coupling of the first magnetic member 38 and the second magnetic member 39. The specific working principle can refer to the magnetic coupler.

[0050] refer to Figures 5 to 8A squeezing plate 310 is slidably connected between the water absorbing member 31 and the supporting member 35 inside the installation box 21, and a sealing plate 311 is slidably connected between the squeezing plate 310 and the supporting member 35. A plurality of first air holes 312 are evenly opened on the squeezing plate 310, and a plurality of second air holes 313 are evenly opened on the sealing plate 311. The plurality of first air holes 312 and the plurality of second air holes 313 are staggered. A sealing plug 314 having the same number and corresponding position as the first air holes 312 is fixedly connected to one side of the sealing plate 311 close to the squeezing plate 310. When the sealing plate 311 moves toward the direction of the water absorbing member 31, the plurality of sealing plugs 314 can be inserted into the corresponding first air holes 312 for sealing, and the squeezing plate 310 can squeeze the water absorbing member 31.

[0051] refer to Figures 5 to 9 A rotating groove 315 is provided at the end of the rotating sleeve 36 away from the motor 24, and a driving rod 316 is rotatably connected inside the rotating groove 315. A sliding sleeve 318 is fixedly connected to the side of the blocking plate 311 close to the support member 35. The sliding sleeve 318 is sleeved on the outer wall of the driving rod 316, and an elastic member 317 is connected between the end of the driving rod 316 located inside the rotating groove 315 and the rotating groove 315. The elastic member 317 can be a torsion spring. A spirally arranged guide groove 319 is provided on the circumferential outer wall of the driving rod 316, and a guide rod 320 slidably connected to the guide groove 319 is fixedly connected inside the sliding sleeve 318. When the driving rod 316 rotates, the sliding sleeve 318 and the blocking plate 311 can be driven to slide inside the installation box 21 through the cooperation of the guide groove 319 and the guide rod 320.

[0052] refer to Figure 5 and Figure 8 The interior of the installation box 21 is fixedly connected to the limiting block 321, and the blocking plate 311 is provided with an avoidance groove 322 corresponding to the position of the limiting block 321. The side of the extrusion plate 310 close to the blocking plate 311 is fixedly connected to the support plate 323, and the blocking plate 311 is provided with a slide groove 324 corresponding to the position of the support plate 323. The support plate 323 is slidably connected in the slide groove 324, and the support plate 323 extends to the side of the blocking plate 311 away from the extrusion plate 310 and is fixedly connected to the limiting strip 325. The interior of the installation box 21 is provided with a drainage groove 326 below the water absorbing member 31.

[0053] When the blocking plate 311 moves in a direction away from the water absorbing member 31 , the blocking plate 311 can drive the pressing plate 310 to move in a direction away from the water absorbing member 31 through the limiting strip 325 and the supporting plate 323 .

[0054] In actual operation, when the water absorbing member 31 gradually absorbs water and becomes saturated, resulting in a decrease in the air circulation effect, the temperature in the cabinet 1 will gradually increase. When the temperature and humidity monitoring device 12 detects that the temperature in the cabinet 1 is too high, the controller 13 controls the motors 24 at the air inlet and the air outlet of the cabinet 1 to start, and the motor 24 drives the corresponding fan blades 25 to rotate, so as to ventilate and cool the cabinet 1. When the motor 24 drives the corresponding fan blades 25 to rotate, it will drive the rotating sleeve 36 to rotate through the magnetic coupling of the first magnetic member 38 and the second magnetic member 39. When the rotating sleeve 36 rotates, it will drive the driving rod 316 to rotate through the elastic member 317, and the elastic member 317 will rotate. During the rotation of the driving rod 316, the cooperation between the guide groove 319 and the guide rod 320 drives the sliding sleeve 318 and the blocking plate 311 to move toward the direction of the water absorbing member 31, and drives the extrusion plate 310 to move toward the direction of the water absorbing member 31 to squeeze the water absorbing member 31, and squeeze the water in the water absorbing member 31 to the drainage groove 326. Since the drainage groove 326 at the air outlet of the cabinet 1 is located outside the cabinet 1, the water in the drainage groove 326 at the air outlet of the cabinet 1 can be directly discharged, and the water in the drainage groove 326 at the air inlet of the cabinet 1 will be discharged to the outside of the cabinet 1 through the guide member 15 and the water outlet groove 14. It should be noted that in order to prevent water from entering the cabinet 1 through the first air holes 312 during the squeezing process of the squeezing plate 310 on the water absorbing member 31, Figure 5 and Figure 8 When the blocking plate 311 moves toward the water absorbing member 31, it will preferentially drive the blocking plugs 314 to block all the first air holes 312, so that the water inside the water absorbing member 31 cannot enter the cabinet 1 through the first air holes 312, thereby avoiding damage to the electronic components in the cabinet 1.

[0055] When the squeezing plate 310 squeezes the water absorbing member 31 to the limit position, Figure 5 and Figure 8 , a portion of the drainage groove 326 will be directly connected to the inside of the installation box 21, and air can directly enter the installation box 21 from the drainage groove 326, which will not affect the gas flow when the heat dissipation component 2 is dissipating heat; After the extrusion plate 310 squeezes the water absorbing part 31 to the extreme position, the sliding sleeve 318 cannot move further, resulting in the driving rod 316 and the rotating sleeve 36 being unable to rotate. Since the rotating sleeve 36 and the output end of the motor 24 are transmitted through the magnetic coupling of the first magnetic part 38 and the second magnetic part 39, there is a soft connection relationship between the rotating sleeve 36 and the output end of the motor 24. When the rotating sleeve 36 cannot rotate, it will not affect the normal rotation of the motor 24, and will not affect the normal heat dissipation of the heat dissipation component 2.

[0056] When the temperature in the cabinet door 11 decreases and the motor 24 stops rotating, the elastic member 317 in the compressed state can be released. During the release of the elastic member 317, the driving rod 316 is driven to reverse. During the reverse of the driving rod 316, the guide groove 319 and the guide rod 320 cooperate to drive the sliding sleeve 318 and the blocking plate 311 to move away from the water absorbing member 31. During the process of the blocking plate 311 moving away from the water absorbing member 31, the limiting strip 325 and the supporting plate 323 can drive the squeezing plate 310 to move away from the water absorbing member 31, thereby releasing the squeezing of the water absorbing member 31, so that the water absorbing member 31 can gradually return to its initial state and continue to filter the moisture and water in the air. When the extrusion plate 310 moves in the direction away from the water absorbing member 31, it will be limited by the limit block 321, so that the blocking plate 311 can be separated from the extrusion plate 310, and the plurality of sealing plugs 314 can release the blockage of the plurality of first air holes 312, so that a gap exists between the water absorbing member 31 and the extrusion plate 310, and a gap exists between the extrusion plate 310 and the blocking plate 311, so that the air filtered by the water absorbing member 31 can enter the cabinet 1 through the plurality of first air holes 312 and the plurality of second air holes 313, thereby not affecting the normal air circulation in the cabinet 1.

[0057] In summary, through the arrangement of structures such as the extrusion plate 310, the sealing plate 311 and the drainage groove 326, when the water absorbing member 31 gradually becomes saturated with water, it can cooperate with the heat dissipation component 2 to drive the sealing plate 311 and the extrusion plate 310 to move toward the water absorbing member 31 to squeeze the water absorbing member 31, squeeze the water in the water absorbing member 31 into the drainage groove 326, and discharge it to the outside of the cabinet 1, thereby ensuring that the water absorbing member 31 does not lose the ability to filter moisture due to water saturation, and can continuously keep the environment in the distribution box dry, maintain the stability of the environment in the cabinet 1, thereby improving the reliability and stability of the entire distribution system.

[0058] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A ventilation and dehumidification system, comprising a heat dissipation component, a filter component and a dehumidification component, characterized in that: The heat dissipation component includes an installation box, one side of the installation box is fixedly connected to a limiting plate, the filtering component includes a water absorbent member arranged inside the installation box and fitted with the limiting plate, the interior of the installation box is fixedly connected to a support member, the interior of the installation box is provided with an extrusion plate slidably connected between the water absorbent member and the support member, a sealing plate slidably connected between the extrusion plate and the support member, a plurality of first air holes are evenly arranged on the extrusion plate, a plurality of second air holes are evenly arranged on the sealing plate, a side of the sealing plate close to the extrusion plate is fixedly connected with sealing plugs having the same number and corresponding positions as the first air holes, and when the sealing plate moves toward the direction of the water absorbent member, a plurality of the sealing plugs can be inserted into the corresponding first air holes for sealing, and the extrusion plate can squeeze the water absorbent member.

2. The ventilation and dehumidification system according to claim 1, characterized in that: A plurality of evenly distributed filter holes are provided on both sides of the water absorbent member for air circulation, and a plurality of groups of staggered guide grooves are evenly provided inside the water absorbent member, each of the filter holes is connected to the corresponding guide groove, and every two adjacent guide grooves are connected through staggered connecting grooves.

3. The ventilation and dehumidification system according to claim 2, characterized in that: The limit plate is provided with a plurality of vent holes for gas circulation, a side of the interior of the installation box away from the limit plate is fixedly connected to a motor via a supporting structure, and an output end of the motor away from the limit plate is fixedly connected to a fan blade.

4. The ventilation and dehumidification system according to claim 3, characterized in that: A rotating sleeve is rotatably connected to the support member, and a driving groove is formed on one end of the rotating sleeve close to the motor. The other output end of the motor away from the fan blades is rotatably connected to the driving groove. A plurality of evenly distributed first magnetic members are fixedly embedded in the circumferential outer wall of the other output end of the motor away from the fan blades, and a plurality of second magnetic members that are the same in number and corresponding in position as the first magnetic members are fixedly embedded in the circumferential inner wall of the driving groove, and the magnetic poles of every two adjacent first magnetic members are oppositely arranged, and the magnetic poles of every two adjacent second magnetic members are oppositely arranged.

5. The ventilation and dehumidification system according to claim 4, characterized in that: The rotating sleeve is provided with a rotating groove at one end away from the motor, a driving rod is rotatably connected inside the rotating groove, a sliding sleeve is fixedly connected to a side of the sealing plate close to the support member, the sliding sleeve is sleeved on the outer wall of the driving rod, an elastic member is connected between the end of the driving rod located inside the rotating groove and the rotating groove, a guide groove arranged in a spiral shape is provided on the circumferential outer wall of the driving rod, a guide rod slidably connected to the guide groove is fixedly connected inside the sliding sleeve, and when the driving rod rotates, the sliding sleeve and the sealing plate can be driven to slide inside the installation box through the cooperation of the guide groove and the guide rod.

6. The ventilation and dehumidification system according to claim 5, characterized in that: The interior of the installation box is fixedly connected to a limit block, the blocking plate is provided with an avoidance groove corresponding to the position of the limit block, the side of the extrusion plate close to the blocking plate is fixedly connected to a support plate, the blocking plate is provided with a slide groove corresponding to the position of the support plate, the support plate is slidably connected in the slide groove, the support plate extends to the side of the blocking plate away from the extrusion plate and is fixedly connected to a limit strip, and the interior of the installation box is provided with a drainage groove below the water absorbing member; When the blocking plate moves in a direction away from the water absorbing member, the blocking plate can drive the extrusion plate to move in a direction away from the water absorbing member through the limiting strip and the supporting plate.

7. The ventilation and dehumidification system according to claim 6, characterized in that: The dehumidification assembly comprises a mounting frame, which is fixedly connected to a side of the mounting box away from the water absorbing member, and a plurality of heating tubes for heating air are installed inside the mounting frame.

8. An outdoor power distribution cabinet, characterized in that: include: The ventilation and dehumidification system according to any one of claims 1 to 7; A cabinet body and a cabinet door arranged on the cabinet body, wherein the upper part of the cabinet body is provided with at least one air outlet, the lower part of the cabinet body is provided with at least one air inlet, at least two groups of heat dissipation components are respectively arranged at the air inlet and the air outlet of the cabinet body, at least two groups of dehumidification components are respectively arranged in the two groups of heat dissipation components, and at least one group of dehumidification components is arranged in the heat dissipation component located at the air inlet of the cabinet body; A temperature and humidity monitoring device and a controller are arranged inside the cabinet.

9. The outdoor power distribution cabinet according to claim 8, characterized in that: The outer wall of the cabinet is provided with a water outlet groove below the air inlet, and the bottom of the installation box located at the air inlet of the cabinet is fixedly connected with a flow guide.

10. The outdoor power distribution cabinet according to claim 9, characterized in that: The outer wall of the cabinet is provided with a rain cover at the air outlet, the outer wall of the cabinet is provided with a dust cover at the air inlet, and the top of the cabinet is provided with a rain cover.

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