Electric appliance dehumidification device for port

By designing independently controlled air inlet and air outlet fans in the port lifting equipment electrical box, combined with the device for collecting water droplets by the blade defogging device and the water guide plate, the problem of moisture condensation in the electric box is solved, and efficient dehumidification and energy-saving and heat dissipation are achieved.

CN222839302UActive Publication Date: 2025-05-06ZHANGJIAGANG HUADA TERMINAL CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202421748116.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-23
Publication Date
2025-05-06
Estimated Expiration
2034-07-23

AI Technical Summary

Technical Problem

The electric boxes of port hoisting equipment are prone to moisture condensation and short circuits in outdoor environments. The prior art dehumidification is performed by continuously turning on the fan, but it wastes energy and has poor results.

Method used

A port electrical dehumidification device is designed, and the air inlet fan and air outlet fan are independently controlled. The moisture is condensed on the corrugated plate through the blade defogger, and the water droplets are collected through the water guide plate and corrugated pipe to reduce the possibility of water droplets entering the electric box.

Benefits of technology

It realizes energy saving when defogging is needed, reduces water droplet condensation through air replacement, improves the dehumidification efficiency in the electric box, and effectively cleans the water droplets on the corrugated plate by cleaning components, avoiding the risk of water droplets being blown into the electric box by airflow.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN222839302U_ABST
    Figure CN222839302U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of power distribution box dehumidification, in particular to an electric appliance dehumidification device for a port, and aims to solve the problem that in the prior art, a fan needs to be started for a long time for dehumidification, and consequently resources are wasted. The electric appliance dehumidification device comprises an electric box, an air inlet and an air outlet are formed in the electric box, and an air inlet fan is installed at the air inlet of the electric box; an air outlet fan is arranged at the air outlet on the electric box; a blade demister is arranged on the side, away from the electric box, of the air inlet fan, and the output end of the blade demister communicates with the input end of the air inlet fan so that demisted air can be fed into the electric box. The blade demister comprises a shell installed on the air inlet fan shell and a plurality of corrugated plates installed in the shell. The power distribution box has the effect of saving energy consumed during dehumidification of the power distribution box.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The present application relates to the technical field of dehumidification of distribution boxes, and in particular to a dehumidification device for electrical appliances used in ports. Background Art

[0002] In the shipping industry, after a ship enters a port, various lifting equipment in the port is required to unload the cargo on board and transport it to the port, or to transport the cargo that needs to be transferred in the port to the ship. The lifting equipment in the port needs to be powered by electricity, so each lifting equipment is equipped with an electrical box. The electrical box needs to be installed outdoors. The temperature difference between day and night in the outdoor environment is large, which can easily cause moisture in the air in the electrical box to condense in the electrical box. The condensed water droplets drip onto the line, which can easily cause a short circuit, thus leading to a safety accident.

[0003] The existing technology will install a fan on the electric box, use the fan to connect the outside world with the electric box, and generate air circulation in the electric box, and use continuous air circulation to prevent the condensation of water droplets in the electric box. However, due to the humid air in the port, the fan blows the humid air from the outside into the electric box. When the fan stops working, the moisture in the humid air will still condense in the electric box. Keeping the fan on wastes energy, so it needs to be improved. Utility Model Content

[0004] In order to reduce the energy waste caused by the need to continuously turn on the fan when dehumidifying the electrical box, the present application provides a dehumidification device for port electrical appliances.

[0005] The present application provides a port electrical appliance dehumidification device that adopts the following technical solution:

[0006] A dehumidification device for electrical appliances used in ports, comprising an electrical box, the electrical box being provided with an air inlet and an air outlet, an air inlet fan being installed at the air inlet of the electrical box, and an air outlet fan being installed at the air outlet of the electrical box; a blade defogger is provided on the side of the air inlet fan away from the electrical box, the output end of the blade defogger is connected to the input end of the air inlet fan to deliver the defogged air into the electrical box; the blade defogger comprises a shell installed on the outer casing of the air inlet fan and a plurality of corrugated plates installed in the shell.

[0007] By adopting the above technical solution, when demisting is required, the operator starts the air inlet fan alone, and the air outlet fan remains closed at this time. The air inlet fan allows outside air to flow into the electric box from the gap between the corrugated plates. The moisture in the air condenses on the corrugated plates and gathers under the surface tension of the liquid, and leaves the shell under the action of gravity. The demisted air generates airflow circulation in the electric box, and the airflow causes the originally humid air in the electric box to leave the electric box through the air outlet fan, reducing the possibility of condensation of water droplets in the electric box. Since the air entering the electric box has been demisted, after a period of air replacement, the operator can turn off the air inlet fan to save energy. When heat dissipation is required, the operator turns on the air outlet fan, and the air inlet fan remains closed at this time. The air outlet fan defogs the air through the corrugated plate and then sucks it into the electric box, and the airflow takes away the heat in the electric box and leaves the electric box. Since the air entering the electric box has been demisted, the heat is dissipated while reducing the possibility of condensation of water droplets in the electric box, saving energy.

[0008] Optionally, a plurality of the corrugated plates are arranged in a parallel array, the corrugated plates are arranged in a vertical direction, the bottom of the shell is open, and the air moves from the bottom of the corrugated plates to the top of the corrugated plates; the side walls on both sides of the width direction of the corrugated plates are connected to the inner wall of the shell, and the side plates connecting the shell and the corrugated plates are arranged at an angle.

[0009] Optionally, a water guide plate is provided at the bottom opening of the shell, and the water guide plate is connected to the side wall of the shell; the water guide plate is arranged at an angle, and a bellows is installed on the bottom of the water guide plate away from the shell.

[0010] By adopting the above technical solution, when the air inlet fan or the air outlet fan is working, the air inlet fan or the air outlet fan draws air from the gap between the water guide plate and the shell, and the curved path between the corrugated plates increases the contact area between the air and the corrugated plates, thereby improving the efficiency of defogger. The water droplets condensed on the corrugated plates gather under the action of surface tension and move toward the side wall where the shell and the corrugated plates are connected. The water flow that moves to the inner wall of the shell flows downward under the action of gravity. The inclined side wall of the shell accelerates and guides the water flow to leave the shell from below, reducing the possibility of water droplets staying in the shell and being blown into the electrical box by the airflow. The water flows onto the water guide plate, and under the guidance of the inclined water guide plate, it enters the bellows and is collected by the operator or directly discharged to the ground. Due to the small amount of water, it is difficult for water to accumulate on the ground and affect the surrounding environment.

[0011] Optionally, there is a gap between the water guide plate and the shell, and air enters the shell through the gap.

[0012] By adopting the above technical solution, if the water guide plate closes the shell, air can only enter the shell from the bellows, which is inefficient; and it is easy to generate high-pressure airflow, which may cause the high-pressure airflow to blow the water droplets back to the electrical box.

[0013] Optionally, a cleaning assembly is further provided between the air intake fan and the shell, the cleaning assembly comprising a rotating shaft, a disc, a protrusion and a driving member, the driving member is mounted on the shell of the air intake fan, the output end of the driving member is connected to the rotating shaft, the disc is mounted on an end of the rotating shaft away from the driving member, and the rotating shaft and the disc rotate synchronously; the protrusion is eccentrically mounted on the outer circumferential wall of the disc, and the circumferential wall of the protrusion away from the disc can contact the shell; a rubber gasket is provided between the shell and the shell of the air intake fan.

[0014] Optionally, the driving member includes a first linkage wheel and a second linkage wheel, a short rod is installed at the center of the rotating part of the fan, the first linkage wheel is connected to the short rod, and the first linkage wheel rotates synchronously with the rotating part of the fan; a sleeve is installed through the outer casing of the fan, the rotating shaft is inserted in the sleeve, and the outer circumferential wall of the rotating shaft is slidably matched with the inner circumferential wall of the sleeve; the end of the rotating shaft away from the disc extends into the outer casing of the fan through the sleeve, and the second linkage wheel is installed at the end of the rotating shaft away from the disc, and the second linkage wheel rotates synchronously with the disc; steps are provided on the side walls of the first linkage wheel and the second linkage wheel close to each other, and the first linkage wheel can cooperate with the second linkage wheel to drive the second linkage wheel to rotate synchronously.

[0015] By adopting the above technical solution, when water droplets accumulate on the corrugated plate and are difficult to leave, the operator holds the pull rod and pushes the pull rod in the direction close to the air inlet fan. The pull rod drives the disc to move, and the disc drives the rotating shaft to approach the air inlet fan along the length direction of the rotating shaft in the sleeve, and the rotating shaft drives the second linkage wheel to approach the first linkage wheel. Until the step on the first linkage wheel is engaged with the step on the second linkage wheel, the disc and the protrusion also move between the two shells. The rotating part of the air inlet fan drives the first linkage wheel to rotate, and the first linkage wheel drives the second linkage wheel, the rotating shaft, the disc and the protrusion to rotate. When the disc and the protrusion rotate, the tip of the protrusion away from the disc repeatedly knocks the side walls of the two shells close to each other, and the vibration generated by the knocking is transmitted to the corrugated plate, shaking off the water droplets on the corrugated plate. Due to the small amplitude of the knocking, only slight vibration will be generated, and the knocking will hardly affect the firmness of the shell. The setting of the rubber gasket can absorb the vibration of the shell and reduce the possibility of the vibration of the shell being transmitted to the shell of the air inlet fan. After knocking for one minute, the operator holds the pull rod and pulls it away from the air inlet fan, so that the second linkage wheel disengages from the first linkage wheel, and the knocking stops immediately. Avoid long-term knocking to produce continuous noise.

[0016] Optionally, two air inlets are provided, and the two air inlets are respectively arranged at the bottom of two opposite side walls of the electric box, and the two air inlets are staggered; the air outlet is arranged at the top of the electric box.

[0017] By adopting the above technical solution, air enters from the bottom of the electric box, pushing the air inside the electric box to move to the top and leave from the top of the electric box, thereby improving the efficiency of air replacement. The staggered air inlets can make the air rise in the electric box and rotate around the center line of the electric box as the center, so that the airflow is evenly distributed in the electric box, further improving the efficiency of air replacement.

[0018] Optionally, a baffle is suspended on the top of the electrical box, the baffle is used to block rainwater, and the edge of the baffle is bent downward in a direction away from the center of the baffle.

[0019] By adopting the above technical solution, when there is precipitation in the area, the precipitation falls on the baffle and falls from the bent edge of the baffle to the ground around the electrical box, reducing the amount of rainwater entering the electrical box through the gaps between the blades of the air outlet fan and causing circuit failure.

[0020] In summary, the present application includes at least one of the following beneficial technical effects:

[0021] 1. When defogger is needed, the operator starts the air inlet fan alone, and the air outlet fan remains closed. The air inlet fan allows outside air to flow into the electric box from the gap between the corrugated plates. The moisture in the air condenses on the corrugated plates and gathers under the action of the surface tension of the liquid. The defogged air generates airflow circulation in the electric box, and the airflow causes the originally humid air in the electric box to leave the electric box through the air outlet fan, reducing the possibility of condensation of water droplets in the electric box. Since the air entering the electric box has been defogged, after a period of air replacement, the operator can turn off the air inlet fan to save energy. When heat dissipation is required, the operator turns on the air outlet fan, and the air inlet fan remains closed. The air outlet fan defogs the air through the corrugated plate and then sucks it into the electric box. The airflow takes away the heat in the electric box and leaves the electric box. Since the air entering the electric box has been defogged, the heat is dissipated while reducing the possibility of condensation of water droplets in the electric box, saving energy;

[0022] 2. When water droplets accumulate on the corrugated plate and are difficult to leave, the operator holds the pull rod and pushes it in the direction close to the air inlet fan. The pull rod drives the disc to move, and the disc drives the rotating shaft to approach the air inlet fan along the length direction of the rotating shaft in the sleeve, and the rotating shaft drives the second linkage wheel to approach the first linkage wheel. Until the step on the first linkage wheel engages with the step on the second linkage wheel, the disc and the protrusion also move between the two shells. The rotating part of the air inlet fan drives the first linkage wheel to rotate, and the first linkage wheel drives the second linkage wheel, the rotating shaft, the disc and the protrusion to rotate. When the disc and the protrusion rotate, the tip of the protrusion away from the disc repeatedly knocks on the side walls of the two shells that are close to each other. The vibration generated by the knocking is transmitted to the corrugated plate, shaking off the water droplets on the corrugated plate. Due to the small amplitude of the knocking, only slight vibration will be generated, and the knocking will hardly affect the firmness of the shell. The setting of the rubber gasket can absorb the vibration of the shell and reduce the possibility of the vibration of the shell being transmitted to the shell of the air inlet fan. After knocking for one minute, the operator holds the pull rod and pulls it away from the air inlet fan, so that the second linkage wheel disengages from the first linkage wheel, and the knocking stops immediately. Avoid long-term knocking to generate continuous noise;

[0023] 3. Air enters from the bottom of the box, pushing the air inside the box to move to the top and leaving from the top of the box, improving the efficiency of air replacement. The staggered air inlets allow the air to rise in the box and rotate around the center line of the box, making the airflow evenly distributed in the box, further improving the efficiency of air replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the structure of the port electrical appliance dehumidification device according to an embodiment of the present application.

[0025] Figure 2 This is a cross-sectional view of an embodiment of the present application for illustrating the internal structure of a dehumidification device.

[0026] Figure 3 It is an enlarged view of the dehumidification device of the embodiment of the present application.

[0027] Figure 4 It is a schematic diagram of the structure of the cleaning component of the embodiment of the present application.

[0028] Explanation of the accompanying drawings: 1. Electric box; 11. Air inlet fan; 12. Air outlet fan; 2. Blade defogger; 21. Shell; 22. Corrugated plate; 23. Water guide plate; 24. Bellows; 3. Cleaning assembly; 31. Rotating shaft; 32. Disc; 33. Bump; 34. Driving member; 341. First linkage wheel; 342. Second linkage wheel; 343. Sleeve; 35. Pull rod; 4. Rubber gasket; 5. Baffle. DETAILED DESCRIPTION

[0029] The following is combined with Figure 1-4 This application is described in further detail.

[0030] The present application embodiment discloses a dehumidification device for electrical appliances used in ports. Figure 1 and Figure 2 A port electrical dehumidification device includes an electrical box 1, which can be placed on the ground or hung on the wall. The electrical box 1 is provided with an air inlet and an air outlet, and an air inlet fan 11 is installed at the air inlet of the electrical box 1, and the housing of the air inlet fan 11 is installed on the side wall of the electrical box 1 at the air inlet by bolts. An air outlet fan 12 is provided at the air outlet of the electrical box 1, and the housing of the air outlet fan 12 is installed on the side wall of the electrical box 1 at the air outlet by bolts. The air inlet fan 11 and the air outlet fan 12 are independently controlled by two systems, and the power of the air outlet fan 12 is greater than that of the air inlet fan 11. A blade defogger 2 is provided at the input end of the air inlet fan 11, and the blade defogger 2 is installed on the side of the air inlet fan 11 away from the electrical box 1.

[0031] When defogger is needed, the operator starts the air inlet fan 11 alone, and the air outlet fan 12 remains closed at this time. The air inlet fan 11 allows the outside air to enter the blade defogger 2 first, and the water vapor in the outside air is first condensed in the blade defogger 2 and discharged from the blade defogger 2 to achieve defogger. After defoggering by the blade defogger 2, the relatively dry air is blown into the electric box 1 through the air inlet fan 11, generating an air circulation in the electric box 1. The circulating airflow allows the originally humid air in the electric box 1 to leave the electric box 1 from the air outlet through the air outlet fan 12 under the action of air pressure, reducing the possibility of condensation of water droplets in the electric box 1. Since the air entering the electric box 1 is first defogged by the blade defogger 2, after a period of air replacement, the air humidity in the electric box 1 is reduced, and the operator can turn off the air inlet fan 11 to save energy.

[0032] Since the electrical components in the electric box 1 easily generate heat, when heat dissipation is required, the operator turns on the outlet fan 12, while the inlet fan 11 remains in the off state. Since the power of the outlet fan 12 is relatively large, the outlet fan 12 defogs the air through the blade defogger 2 and then sucks it into the electric box 1. The air moves toward the outlet fan 12 in the electric box 1, takes away the heat in the electric box 1 and leaves the electric box 1. Since the air entering the electric box 1 has been defogged, the heat is dissipated while reducing the possibility of condensation of water droplets in the electric box 1, saving energy.

[0033] Reference Figure 1 and Figure 2There are two air inlets, which are respectively arranged at the bottom of two opposite side walls of the electric box 1. The two air inlets are staggered, and an air inlet fan 11 is installed at each air inlet. Two blade demisters 2 are installed on each air inlet fan 11. The air outlet is arranged at the top of the electric box 1. A pole is installed at the top of the electric box 1, and a baffle 5 is installed on the top of the pole. The baffle 5 is suspended above the air outlet fan 12 to block rain, and the edge of the baffle 5 is bent downward in a direction away from the center of the baffle 5.

[0034] Air enters from the bottom of the electric box 1, pushing the air inside the electric box 1 to move to the top and leave from the top of the electric box 1, improving the efficiency of air replacement. The staggered air inlets can make the air rise in the electric box 1 while rotating around the center line of the electric box 1, so that the airflow is evenly spread in the electric box 1, further improving the efficiency of air replacement. When there is precipitation in the area, the precipitation falls on the baffle 5 and falls from the bent edge of the baffle 5 to the ground around the electric box 1, reducing the rainwater from entering the electric box 1 through the gaps between the blades of the air outlet fan 12, causing circuit failure.

[0035] Reference Figure 2 and Figure 3 The blade defogger 2 includes a shell 21, which is mounted on the outer shell of the air inlet fan 11, and the shell 21 is connected to the input end of the air inlet fan 11, and the bottom of the shell 21 is open. A plurality of corrugated plates 22 are installed in the shell 21. The plurality of corrugated plates 22 are arranged in the vertical direction. In this embodiment, four corrugated plates 22 are arranged in each shell 21, and the four corrugated plates 22 are arranged in a parallel array along the length direction of the air inlet fan 11. The side walls on both sides of the corrugated plate 22 in the width direction are connected to the inner wall of the shell 21, and the side walls of the corrugated plate 22 are connected to the inner wall of the shell 21 by welding.

[0036] When the air inlet fan 11 or the air outlet fan 12 is working, the air inlet fan 11 or the air outlet fan 12 sucks air from the opening at the bottom of the housing 21, and the air flows through the gaps between the corrugated plates 22 or between the corrugated plates 22 and the inner wall of the housing 21, and approaches the input end of the air inlet fan 11. The moisture in the humid air of the port condenses at one end of the corrugated plates 22 close to the input end of the housing 21, and the curved paths between the corrugated plates 22 increase the contact area between the air and the corrugated plates 22, thereby improving the efficiency of demisting.

[0037] Reference Figure 2 and Figure 3, the side plate connecting the shell 21 and the corrugated plate 22 is tilted, that is, the side plate of the shell 21 away from the electrical box 1 is tilted. A water guide plate 23 is provided at the bottom opening of the shell 21, and the top wall of the water guide plate 23 is connected to the bottom wall of the shell 21 by welding. In the present embodiment, two water guide plates 23 are provided, and the two water guide plates 23 are arranged opposite to each other, and one of the water guide plates 23 is connected to the tilted side wall of the shell 21. Both water guide plates 23 are tilted, and the bottoms of the two water guide plates 23 are tilted in a direction approaching each other. A bellows 24 is installed at the bottom of the water guide plate 23, and the bellows 24 is clamped with the bottom of the water guide plate 23. There is a gap between the two water guide plates 23 and the shell 21, and air enters the shell 21 from the gap.

[0038] The water droplets condensed on the corrugated plate 22 are gathered under the action of surface tension and move toward the side wall near the shell 21 where the corrugated plate 22 is connected. The water flow that moves to the inner wall of the shell 21 flows downward under the action of gravity. The inclined side wall of the shell 21 accelerates and guides the water flow to leave the shell 21 from below, reducing the possibility that the water droplets stay in the shell 21 and are blown into the electrical box 1 by the air flow. The water flow flows to the water guide plate 23, and under the guidance of the inclined water guide plate 23, it enters the bellows 24 and is collected by the operator or directly discharged to the ground. Since the amount of water is small, it is difficult to cause water accumulation on the ground to affect the surrounding environment.

[0039] Reference Figure 3 and Figure 4 , only part of the water droplets on the corrugated plate 22 can leave the corrugated plate 22 by the surface tension of the liquid and the action of gravity, but some water droplets still remain and are easily blown upward into the electrical box 1 by the airflow. Therefore, a cleaning assembly 3 is also provided between the air intake fan 11 and the housing 21, and the cleaning assembly 3 includes a driving member 34. The driving member 34 can be a motor, but in order to save energy, the driving member 34 is linked with the air intake fan 11 in this embodiment. The driving member 34 includes a first linkage wheel 341 and a second linkage wheel 342. A short rod is installed at the center of the rotating part of the fan. The first linkage wheel 341 is connected to the short rod by bolts, and the first linkage wheel 341 rotates synchronously with the rotating part of the fan. The second linkage wheel 342 is arranged on the side of the first linkage wheel 341 away from the rotating part of the fan. A sleeve 343 is installed through the outer shell of the fan, and a rotating shaft 31 is inserted into the sleeve 343. The outer peripheral wall of the rotating shaft 31 is slidably matched with the inner peripheral wall of the sleeve 343. One end of the rotating shaft 31 extends into the housing of the air inlet fan 11 through the sleeve 343, and the second linkage wheel 342 is installed at the end of the rotating shaft 31 close to the air inlet fan 11, and the second linkage wheel 342 rotates synchronously with the rotating shaft 31. Steps are provided on the side walls of the first linkage wheel 341 and the second linkage wheel 342 that are close to each other, and the first linkage wheel 341 can cooperate with the second linkage wheel 342 to drive the second linkage wheel 342 to rotate synchronously.

[0040] A disc 32 is mounted on one end of the rotating shaft 31 away from the second linkage wheel 342. The disc 32 is connected to the rotating shaft 31 by bolts, and the rotating shaft 31 and the disc 32 rotate synchronously. A protrusion 33 is arranged on the outer peripheral wall of the disc 32. The protrusion 33 is eccentrically arranged, and the peripheral wall of the protrusion 33 is smoothly connected to the peripheral wall of the disc 32. The peripheral wall of the protrusion 33 away from the disc 32 can contact the housing 21. A pull rod 35 is arranged on the side of the disc 32 away from the rotating shaft 31, and a ball head is arranged on the end of the pull rod 35 away from the disc 32 for the operator to hold.

[0041] The top end of the shell 21 close to the air inlet fan 11 is sleeved on the outer shell of the air inlet fan 11 at the input end, and a rubber gasket 4 is arranged between the shell 21 and the outer shell of the air inlet fan 11, and the rubber gasket 4 is connected to the outer wall of the outer shell of the air inlet fan 11 and the inner wall of the shell 21 by gluing.

[0042] When the air intake fan 11 is working, the first linkage wheel 341 and the second linkage wheel 342 are away from each other, and the second linkage wheel 342 is pressed against the inner wall of the outer shell of the air intake fan 11. At this time, the disc 32 and the protrusion 33 are not in contact with the shell 21. When water droplets accumulate on the corrugated plate 22 and are difficult to leave, the operator holds the pull rod 35 and pushes the pull rod 35 in the direction close to the air intake fan 11. The movement of the pull rod 35 drives the disc 32 to move, and the movement of the disc 32 drives the rotating shaft 31 in the sleeve 343 along the length direction of the rotating shaft 31 to approach the air intake fan 11. The movement of the rotating shaft 31 drives the second linkage wheel 342 to approach the first linkage wheel 341. Until the step on the first linkage wheel 341 is engaged with the step on the second linkage wheel 342, at this time, the disc 32 and the protrusion 33 also move between the two shells 21. The rotating part of the air intake fan 11 drives the first interlocking wheel 341 to rotate, and the rotation of the first interlocking wheel 341 drives the second interlocking wheel 342 to rotate, and the rotation of the second interlocking wheel 342 drives the rotating shaft 31 and the disc 32 to rotate, and the protrusion 33 also rotates with the axis of the disc 32 as the axis. When the disc 32 and the protrusion 33 rotate, the tip of the protrusion 33 away from the disc 32 will repeatedly knock on the side walls of the two shells 21 that are close to each other, and the vibration generated by the knocking is transmitted to the corrugated plate 22, shaking off the water droplets on the corrugated plate 22. Since the amplitude of the knocking is small, only slight vibration will be generated, and the knocking is unlikely to affect the firmness of the shell 21. The setting of the rubber gasket 4 can absorb the vibration of the shell 21, reducing the possibility of the vibration of the shell 21 being transmitted to the outer shell of the air intake fan 11.

[0043] After knocking for one minute, the operator holds the pull rod 35 and pulls it away from the air inlet fan 11, so that the second linkage wheel 342 is disengaged from the first linkage wheel 341, and the knocking stops immediately. Continuous noise caused by long-term knocking is avoided.

[0044] The implementation principle of a port electrical appliance dehumidification device in the embodiment of the present application is as follows: when demisting is required, the operator starts the air inlet fan 11, and when the air passes through the corrugated plate 22, the water vapor condenses on the corrugated plate 22, and the water droplets of the condensed part gather and enter the corrugated pipe 24 along the inclined inner wall of the shell 21 and the water guide plate 23 to leave. The operator controls the meshing state of the first linkage wheel 341 and the second linkage wheel 342 through the pull rod 35 at regular intervals, so that the protrusion 33 knocks the shell 21 to generate vibration, and shakes off the remaining water droplets on the corrugated plate 22. The air inlet fan 11 can be turned off after being turned on for a period of time. At this time, the air in the electric box 1 is demisted, and it is difficult to condense water droplets in the electric box 1. Compared with the prior art, the fan needs to be turned on for a long time, which saves energy. When heat dissipation is required, the air outlet fan 12 is started separately, and the air that has been demisted by the corrugated plate is sucked into the electric box 1 for heat dissipation. Demisting is performed while heat dissipation saves energy.

[0045] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A port electrical dehumidification device, characterized in that: The invention comprises an electric box (1), wherein the electric box (1) is provided with an air inlet and an air outlet, wherein an air inlet fan (11) is installed at the air inlet of the electric box (1), and an air outlet fan (12) is installed at the air outlet of the electric box (1); a blade defogger (2) is installed on the side of the air inlet fan (11) away from the electric box (1), and the output end of the blade defogger (2) is connected to the input end of the air inlet fan (11) so as to send defogged air into the electric box (1); the blade defogger (2) comprises a shell (21) installed on the outer shell of the air inlet fan (11) and a plurality of corrugated plates (22) installed in the shell (21).

2. A port electrical appliance dehumidification device according to claim 1, characterized in that: A plurality of the corrugated plates (22) are arranged in a parallel array, the corrugated plates (22) are arranged in a vertical direction, the bottom of the shell (21) is open, and air moves from the bottom of the corrugated plates (22) to the top of the corrugated plates (22); the side walls on both sides of the corrugated plates (22) in the width direction are connected to the inner wall of the shell (21), and the side plates connecting the shell (21) and the corrugated plates (22) are arranged at an angle.

3. A port electrical appliance dehumidification device according to claim 2, characterized in that: A water guide plate (23) is provided at the bottom opening of the shell (21), and the water guide plate (23) is connected to the side wall of the shell (21); the water guide plate (23) is arranged obliquely, and a bellows (24) is installed at the bottom of the water guide plate (23) away from the shell (21).

4. A port electrical appliance dehumidification device according to claim 3, characterized in that: There is a gap between the water guide plate (23) and the shell (21), and air enters the shell (21) through the gap.

5. A port electrical appliance dehumidification device according to claim 1, characterized in that: A cleaning assembly (3) is also provided between the air intake fan (11) and the housing (21), and the cleaning assembly (3) comprises a rotating shaft (31), a disc (32), a protrusion (33) and a driving member (34). The driving member (34) is mounted on the housing of the air intake fan (11), and the output end of the driving member (34) is connected to the rotating shaft (31). The disc (32) is mounted on an end of the rotating shaft (31) away from the driving member (34), and the rotating shaft (31) and the disc (32) rotate synchronously; the protrusion (33) is eccentrically mounted on the outer peripheral wall of the disc (32), and the peripheral wall of the protrusion (33) away from the disc (32) can contact the housing (21); a rubber gasket (4) is provided between the housing (21) and the housing of the air intake fan (11).

6. A port electrical appliance dehumidification device according to claim 5, characterized in that: The driving member (34) comprises a first linkage wheel (341) and a second linkage wheel (342); a short rod is installed at the center of the rotating part of the fan, the first linkage wheel (341) is connected to the short rod, and the first linkage wheel (341) rotates synchronously with the rotating part of the fan; a sleeve (343) is installed through the outer shell of the fan, the rotating shaft (31) is inserted into the sleeve (343), and the outer peripheral wall of the rotating shaft (31) is slidably matched with the inner peripheral wall of the sleeve (343); the rotating shaft (3 1) one end away from the disc (32) extends into the housing of the fan through a sleeve (343); the second linkage wheel (342) is installed on the end of the rotating shaft (31) away from the disc (32); the second linkage wheel (342) rotates synchronously with the disc (32); steps are arranged on the side walls of the first linkage wheel (341) and the second linkage wheel (342) that are close to each other; the first linkage wheel (341) can cooperate with the second linkage wheel (342) to drive the second linkage wheel (342) to rotate synchronously.

7. A port electrical appliance dehumidification device according to claim 1, characterized in that: Two air inlets are provided, and the two air inlets are respectively arranged at the bottom of two opposite side walls of the electrical box (1), and the two air inlets are arranged in a staggered manner; the air outlet is arranged at the top of the electrical box (1).

8. A port electrical appliance dehumidification device according to claim 7, characterized in that: A baffle (5) is suspended on the top of the electrical box (1), and the baffle (5) is used to block rainwater. The edge of the baffle (5) is bent downward in a direction away from the center of the baffle (5).