CN111049017A - High-strength moisture-proof power distribution cabinet - Google Patents

High-strength moisture-proof power distribution cabinet Download PDF

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Publication number
CN111049017A
CN111049017A CN201911394165.0A CN201911394165A CN111049017A CN 111049017 A CN111049017 A CN 111049017A CN 201911394165 A CN201911394165 A CN 201911394165A CN 111049017 A CN111049017 A CN 111049017A
Authority
CN
China
Prior art keywords
air
cabinet
condensation
power distribution
pipe
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201911394165.0A
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Chinese (zh)
Inventor
莫达生
夏燕珊
张惠平
石安丰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen Guangzhida Electric Co ltd
Original Assignee
Shenzhen Guangzhida Electric Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shenzhen Guangzhida Electric Co ltd filed Critical Shenzhen Guangzhida Electric Co ltd
Priority to CN201911394165.0A priority Critical patent/CN111049017A/en
Publication of CN111049017A publication Critical patent/CN111049017A/en
Pending legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02BBOARDS, SUBSTATIONS, OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/26Casings; Parts thereof or accessories therefor
    • H02B1/30Cabinet-type casings; Parts thereof or accessories therefor
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02BBOARDS, SUBSTATIONS, OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/26Casings; Parts thereof or accessories therefor
    • H02B1/28Casings; Parts thereof or accessories therefor dustproof, splashproof, drip-proof, waterproof or flameproof
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02BBOARDS, SUBSTATIONS, OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/56Cooling; Ventilation
    • H02B1/565Cooling; Ventilation for cabinets

Abstract

The invention relates to a high-strength moisture-proof power distribution cabinet, which relates to the technical field of power distribution cabinets and comprises a cabinet body, wherein an air supply assembly and a condensation assembly are arranged in the cabinet body, the condensation assembly comprises a condensation bin, a condensation sheet arranged on the outer side of the condensation bin close to the cabinet body and a drain pipe communicated with the bottom of the condensation bin, a closed cavity is formed between the condensation sheet and the condensation bin, the air supply assembly comprises an air inlet pipe communicated with the top of the condensation bin, an air outlet pipe communicated with the condensation bin and an air supply part used for driving the air in the air inlet pipe and the air outlet pipe to flow, the air supply part is used for pumping the air in the cabinet body to return to the cabinet body through the air inlet pipe, the condensation bin and the air outlet pipe in sequence, and a heat radiation part used for. The invention has the effect of continuously absorbing water in the air in the power distribution cabinet to reduce the air humidity so as to protect the electric elements in the power distribution cabinet.

Description

High-strength moisture-proof power distribution cabinet
Technical Field
The invention relates to the technical field of power distribution cabinets, in particular to a high-strength moisture-proof power distribution cabinet.
Background
The power distribution cabinet is a general name of a motor control center, is divided into a power distribution cabinet, a lighting power distribution cabinet, a metering cabinet and the like, belongs to the final-stage equipment of a power distribution system, is commonly used in the occasions with dispersed loads and less loops, and can be placed outdoors or indoors.
The electric elements in the switch board are more, and the condition of breaking down easily after the electric elements wet, and then influence the normal operating of consumer. Therefore, the interior of the power distribution cabinet needs to be kept within a proper humidity range, and the general requirement is to ensure that the humidity is below 50%. When running into rainy day, fog day weather, humidity in the switch board can surpass safety range, and current dehumidification method is with the switch board bed hedgehopping for the switch board is kept away from ground, and places the drier in switch board inside, keeps the degree of dryness of the interior air of cabinet with this.
The utility model discloses a chinese utility model that publication is CN206546966U discloses a novel dampproofing switch board device, including fixed chassis, shock attenuation insulator foot, switch board main part, dampproofing case apron, the inside switch board inner chamber that has of switch board main part, the dampproofing case of switch board inner chamber internal connection, dampproofing case removes in switch board inner chamber, the dampproofing incasement portion has the chamber that absorbs water, the intracavity portion that absorbs water has the pearl that absorbs water. According to the invention, the power distribution cabinet is lifted by the fixed underframe, and water in the air in the cavity of the power distribution cabinet is absorbed by the water absorption beads in the moisture-proof box, so that the humidity of the air is reduced, and the electric elements are prevented from being broken down.
The above prior art solutions have the following drawbacks: the water absorption capacity of the water absorption beads is limited, and after the water absorption beads absorb water to be saturated, water in the air is difficult to be absorbed again, so that the air humidity in the power distribution cabinet is difficult to fall into a safety range, the electric elements are easy to break down, and the effect of protecting the electric elements is difficult to play.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide the high-strength moisture-proof power distribution cabinet which can continuously absorb water in the air in the power distribution cabinet and reduce the air humidity so as to protect the electric elements in the power distribution cabinet.
The above object of the present invention is achieved by the following technical solutions:
dampproofing switch board of high strength, the intelligent cabinet temperature adjusting device comprises a cabinet body, the internal air supply subassembly and the condensation subassembly of being provided with of cabinet, the condensation subassembly includes the condensation storehouse, set up in the condensation storehouse by the condensation piece of the external side of cabinet and with the drain pipe of condensation storehouse bottom intercommunication, form the confined cavity between condensation piece and the condensation storehouse, the air supply subassembly includes the air-supply line with condensation storehouse top intercommunication, with the play tuber pipe of condensation storehouse intercommunication and be used for driving the air-supply part that air-supply line and the intraductal gas flow of air-out, it is internal that the air-supply part is used for pumping the internal gas of cabinet to get back to the cabinet through air-supply line, condensation storehouse and play tuber pipe in proper order, the external one side that is located the condensation.
Through adopting above-mentioned technical scheme, in the air supply part with the internal air suction air-inlet pipe of cabinet, air admission condensation storehouse in the air-inlet pipe and the cavity of condensation piece formation, the while radiating piece reduces the temperature on condensation piece surface when the function, with this water that makes in the internal air of cabinet meets condensation and becomes the drop of water, the drop of water slides along the condensation piece and discharges in the drain pipe of condensation storehouse bottom, air after the drying is followed the tuber pipe and is got back to the internal circulation of cabinet again, with this water in the interior air of continuous absorption switch board, reduce air humidity, thereby protect the electric element in the switch board.
The present invention in a preferred example may be further configured to: the air inlet pipe and the air outlet pipe are respectively positioned at two sides of an electric element in the cabinet body, air vents distributed at intervals along the height direction of the cabinet body are formed in the air inlet pipe and the air outlet pipe and face towards one side of an electric appliance, the air vents of the air inlet pipe are positioned at the position, close to the bottom, of the side wall of the cabinet body, and the air vents of the air outlet pipe are positioned at the position, close to the top, of the side wall of the cabinet body.
By adopting the technical scheme, air at different positions in the cabinet body is extracted through the layered air exchange ports, so that the air circulation is improved; because the density of the humid air is higher than that of the dry air, the ventilation ports of the air inlet pipe are concentrated at the position, close to the bottom, of the cabinet body, and the ventilation ports of the air outlet pipe are located at the position, close to the top, of the side wall of the cabinet body, so that the humid air at the bottom of the cabinet body is sucked through the air inlet pipe, the dried air is discharged into the top of the cabinet body, and the dehumidification efficiency is improved.
The present invention in a preferred example may be further configured to: the air supply part comprises an air pump arranged in the cabinet body, and an air outlet of the air pump is communicated with the condensation bin through an air inlet pipe.
Through adopting above-mentioned technical scheme, the conveying efficiency of air pump is high and the wind pressure is big to this atmospheric pressure that improves the air cavity, the water yield increase that the air condenses after the pressure boost, and the air pressure boost after the temperature rise, so that condensation efficiency improves, thereby promote dehumidification efficiency.
The present invention in a preferred example may be further configured to: it has dry cotton to go out the packing on one section that the tuber pipe leaned on the condensation storehouse, one side that condensation storehouse was kept away from to dry cotton is provided with the filter screen, and filter screen and play tuber pipe connection.
By adopting the technical scheme, the dryness of air is improved through the dry cotton in the air outlet pipe, meanwhile, the air resistance is improved, and the air pressure in the cavity is increased, so that the dehumidification efficiency is improved; and the filter screen can avoid dry cotton to get into the cabinet internally.
The present invention in a preferred example may be further configured to: an electromagnetic valve is arranged at one end, close to the condensation bin, of the air outlet pipe, a controller which is electrically connected with the electromagnetic valve to control the electromagnetic valve to be opened and closed is arranged in the cabinet body, an air pressure sensor is arranged in the condensation bin, the air pressure sensor outputs an overvoltage signal when the air pressure in the cavity is higher than a preset air pressure value, and the controller is electrically connected with the air pressure sensor to receive and respond to the overvoltage signal to control the electromagnetic valve to be opened.
By adopting the technical scheme, the electromagnetic valve is used for sealing a channel communicated with the cavity and the air outlet pipe so as to increase the air pressure in the cavity and condense humid air under pressurization; when the air pressure in the cavity is higher than a preset air pressure value, the controller responds to an overvoltage signal to control the electromagnetic valve to open, so that dried air is discharged into the cabinet body, the dehumidification efficiency of the air is improved, and the moisture resistance of the power distribution cabinet is improved; when the air pump is used for pumping air in the cabinet body and the electromagnetic valve is closed, the interior of the cabinet body is in a negative pressure state, so that water vapor condensation is avoided.
The present invention in a preferred example may be further configured to: the heat dissipation piece comprises a fan arranged outside the cabinet body, and an air outlet of the fan is opposite to the condensation sheet.
Through adopting above-mentioned technical scheme, the fan improves the air flow rate on condensation piece surface when the operation to this temperature that reduces the condensation piece makes moist air meet the condensation knot when getting into the condensation storehouse, with this effect that realizes dry air, promotes dampproofing effect.
The present invention in a preferred example may be further configured to: the cabinet body is provided with a mounting hole, the condensing sheet is covered on the mounting hole, a heat insulation ring is arranged on the edge of the condensing sheet, and the heat insulation ring and the edge of the mounting hole are detachably fixed.
Through adopting above-mentioned technical scheme, through the isolated condensation piece of thermal-insulated circle and the cabinet body to this heat conduction of avoiding the cabinet body influences the cooling of condensation piece to the condensation piece, avoids the internal wall temperature of cabinet to reduce and takes place the condensation phenomenon simultaneously, thereby promotes dampproofing effect.
The present invention in a preferred example may be further configured to: and one side of the condensation sheet, which faces the condensation bin, is provided with a plurality of contact sheets, and the surface of each contact sheet is perpendicular to the condensation sheet.
Through adopting above-mentioned technical scheme, through the area of contact piece increase humid air and condensation piece to this improves heat exchange efficiency, improves humid air condensation effect, thereby promotes dehumidification efficiency.
The present invention in a preferred example may be further configured to: the contact pieces are all triangular, the edges of the contact pieces are connected with the condensation piece, and the tips of the contact pieces are inclined downwards.
Through adopting above-mentioned technical scheme, the tip end slope of contact piece is downward to this makes the drop of water assemble to the tip of contact piece along the contact piece border, makes things convenient for gathering and discharging of drop of water with this, avoids water adhesion on the condensing disc, with this avoids the air to absorb water again and become moist.
The present invention in a preferred example may be further configured to: one end of the drain pipe penetrates through the side wall of the cabinet body and extends to the outside of the cabinet body, a single-way valve which only supplies water to the outside of the cabinet body is arranged on the drain pipe, and the pressure value required by the conduction of the single-way valve is smaller than the preset air pressure value of the air pressure sensor.
By adopting the technical scheme, the condensed water in the condensation bin is discharged through the drain pipe, so that the phenomenon that the water is re-evaporated to moisten the dry air is avoided, and the dehumidification efficiency is improved; and the pressure value required by the single-way valve is smaller than the preset air pressure value of the air pressure sensor, so that the phenomenon that the drainage pipe is blocked to influence the drainage of water is avoided.
In summary, the invention includes at least one of the following beneficial technical effects:
the air supply part sucks air in the cabinet body into the cavity through the air inlet pipe, meanwhile, the heat dissipation part reduces the temperature of the condensation sheet, water in the air in the cabinet body is condensed into water drops when meeting the condensation, the water drops slide into the drainage pipe along the condensation sheet to be discharged, and the dried air returns to the cabinet body along the air outlet pipe to circulate, so that the water in the air in the power distribution cabinet is continuously absorbed, the air humidity is reduced, and the electric elements in the power distribution cabinet are protected;
the electromagnetic valve is used for sealing a channel for communicating the cavity with the air outlet pipe so as to improve the air pressure in the cavity and condense the humid air under pressurization; when the air pressure in the cavity is higher than a preset air pressure value, the electromagnetic valve is opened, so that the dried air is discharged into the cabinet body, the dehumidification efficiency of the air is improved, and the moisture resistance of the power distribution cabinet is improved;
the contact piece is used for increasing the contact area of the humid air and the condensation piece so as to improve the heat exchange efficiency, and the sharp-angle end of the contact piece inclines downwards, so that the water drops are gathered to the sharp end of the contact piece along the edge of the contact piece, the water drops are convenient to gather and discharge, the water is prevented from being adhered to the condensation piece, and the air is prevented from absorbing water again and becoming humid.
Drawings
FIG. 1 is a schematic view of the overall structure of the present embodiment;
FIG. 2 is a schematic diagram of the explosion structure of the present embodiment, mainly showing the condensation sheet;
FIG. 3 is a schematic side view of the present embodiment, mainly illustrating a fan;
FIG. 4 is an enlarged partial schematic view of portion B of FIG. 2;
FIG. 5 is an enlarged partial schematic view of portion A of FIG. 1;
fig. 6 is a partially enlarged schematic view of a portion C in fig. 2.
Reference numerals: 1. a cabinet body; 11. mounting holes; 12. a heat insulation ring; 2. an air supply assembly; 21. an air inlet pipe; 22. an air outlet pipe; 221. drying the cotton; 222. filtering with a screen; 223. an electromagnetic valve; 224. a controller; 225. sealing the cover; 23. an air pressure sensor; 24. an air supply member; 241. an air pump; 25. a heat sink; 251. a fan; 3. a condensing assembly; 31. a condensation bin; 32. a drain pipe; 321. a one-way valve; 33. a condensation sheet; 34. and a contact sheet.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1, the high-strength moisture-proof power distribution cabinet disclosed by the invention comprises a cabinet body 1, wherein an air supply assembly 2 and a condensation assembly 3 are arranged in the cabinet body 1, as shown in fig. 2, the condensation assembly 3 comprises a condensation bin 31, a condensation sheet 33 arranged on the outer side of the condensation bin 31 close to the cabinet body 1 and a drain pipe 32 communicated with the bottom of the condensation bin 31, and a closed cavity is formed between the condensation sheet 33 and the condensation bin 31. The condensation chamber 31 is in a flat square box shape, fixed to the inner wall of the cabinet 1 by screws, and has one side opposite to the condensation sheet 33. Condensation storehouse 31 adopts the plastic material, and the thermal-insulated effect of plastic material is strong to this avoids condensation piece 33 to absorb the heat in condensation storehouse 31 and makes the air that gets into the cabinet body 1 condense on the condensation storehouse 31 inner wall after the cooling, thereby makes things convenient for the water in the moist air to concentrate the condensation on condensation piece 33, avoids the drop of water dispersion and influences the discharge of water.
Referring to fig. 2 and 3, the condensation sheet 33 is made of aluminum, and the aluminum has a strong heat-conducting property, so as to improve the heat exchange efficiency with air, and a heat sink 25 for reducing the temperature of the condensation sheet 33 is disposed at one side of the condensation sheet 33 outside the cabinet body 1. The heat sink 25 includes a fan 251 disposed outside the cabinet 1, the fan 251 and the cabinet 1 are fixed by screws, and an air outlet of the fan 251 is horizontally opposite to the condensation sheet 33. The mounting hole 11 has been seted up on the cabinet body 1, and mounting hole 11 is squarely, and on the mounting hole 11 was located to condensation piece 33 lid, was provided with thermal-insulated circle 12 on its border, and thermal-insulated circle 12 is square cyclic annular and passes through the screw with mounting hole 11 border and can dismantle fixedly, and the screw passes 1 lateral wall of the cabinet body, thermal-insulated circle 12 and with condensation piece 33 threaded connection. The heat insulating ring 12 is made of plastic materials, so that the condensation sheet 33 and the cabinet body 1 are isolated, the heat of the cabinet body 1 is prevented from being conducted to the condensation sheet 33 to influence the cooling of the condensation sheet 33, and meanwhile, the phenomenon that the temperature of the inner wall of the cabinet body 1 is reduced to enable air in the cabinet body 1 to be condensed is avoided, so that the moisture-proof effect is improved.
Referring to fig. 2 and 4, a plurality of contact pieces 34 are disposed on one side of the condensation plate 33 facing the condensation chamber 31, the contact pieces 34 are made of aluminum, and are uniformly distributed at intervals along the horizontal direction and integrally formed with the condensation plate 33, and the surface of the contact piece 34 is perpendicular to the condensation plate 33. The contact sheet 34 is used to increase the contact area between the humid air and the condensation sheet 33, thereby improving the heat exchange efficiency, improving the condensation effect of the humid air, and thus improving the dehumidification efficiency. And a plurality of contact pieces 34 all are obtuse triangle-shaped, and one side border and condensing sheet 33 integrated into one piece of contact piece 34 and its tip slope are downward to this makes the drop of water assemble to the tip of contact piece 34 along contact piece 34 border, with this make things convenient for gathering and discharging of drop of water, avoids water adhesion on condensing sheet 33 and is absorbed by the air again, thereby promotes dampproofing effect.
Referring to fig. 1 and 2, the air supply assembly 2 includes an air inlet duct 21 communicating with the top of the condensation chamber 31, an air outlet duct 22 communicating with the condensation chamber 31, and an air supply member 24 for driving air in the air inlet duct 21 and the air outlet duct 22 to flow. The air inlet pipe 21 and the air outlet pipe 22 are parallel to each other and distributed on the inner walls of the two sides of the cabinet body 1, the bottom end of the air inlet pipe 21 is welded and fixed with the bottom wall of the cabinet body 1, and the top end of the air outlet pipe 22 is welded and fixed with the top wall of the cabinet body 1, so that the structural strength of the cabinet body 1 is improved. The electric elements are positioned between the air inlet pipe 21 and the air outlet pipe 22, and the air inlet pipe 21 and the air outlet pipe 22 are respectively provided with air vents which are distributed at intervals along the height direction of the cabinet body 1, and the air vents are circular and all face one side of the electric appliance, so that air at different positions in the cabinet body 1 is extracted, the air circulation is improved, and moist air is prevented from being retained in a local area in the cabinet body 1. Because the density of the humid air is greater than that of the dry air, the ventilation opening of the air inlet pipe 21 is located near the bottom of the cabinet body 1, and the ventilation opening of the air outlet pipe 22 is located near the top of the side wall of the cabinet body 1, so that the humid air at the bottom of the cabinet body 1 is sucked through the air inlet pipe 21, and the dry air is discharged to the top of the cabinet body 1, thereby improving the dehumidification efficiency.
The air supply member 24 is used for pumping the air in the cabinet 1 to return to the cabinet 1 through the air inlet pipe 21, the condensation bin 31 and the air outlet pipe 22 in sequence. The air supply member 24 includes an air pump 241 disposed in the cabinet 1, the air pump 241 is disposed at the top of the cabinet 1 and fixed to the cabinet 1 by screws, and an air outlet of the air pump 241 is communicated with the condensation chamber 31 through the air inlet pipe 21. Air pump 241 is used for pumping the humid air of the cabinet body 1 bottom to the condensation storehouse 31 in to this condensation of making things convenient for humid air water-logging, and air pump 241's transport efficiency is high, the wind pressure is big, with this atmospheric pressure that improves the air cavity, the water yield increase of air condensation after the pressure boost, and the air pressure boost after the temperature rise, with this messenger condensation efficiency improves, thereby promotes dehumidification efficiency.
Referring to fig. 2 and 5, an electromagnetic valve 223 is disposed at one end of the air outlet pipe 22 close to the condensation chamber 31, and the electromagnetic valve 223 is used for closing a channel through which the cavity communicates with the air outlet pipe 22, so as to raise the air pressure in the cavity, and make the humid air condense under pressurization. A controller 224 electrically connected with the electromagnetic valve 223 for controlling the opening and closing of the electromagnetic valve 223 is arranged in the cabinet body 1, an air pressure sensor 23 is arranged in the condensation bin 31, the air pressure sensor 23 is used for detecting the air pressure in the cavity, and an SIN-P350 flat membrane pressure transmitter is adopted. When atmospheric pressure in the cavity is higher than preset atmospheric pressure value, baroceptor 23 output overvoltage signal, controller 224 adopts the PLC controller, and it is connected in order to receive and respond to overvoltage signal control solenoid valve 223 and open with baroceptor 23 electricity to this air discharge after with the drying cabinet body 1 in, thereby promote the dehumidification efficiency of air, improve the humidity resistance of switch board. And when the air pump 241 pumps the air in the cabinet 1 and the electromagnetic valve 223 is closed, the air in the cabinet 1 is pumped away, so that the interior of the cabinet 1 is in a negative pressure state, thereby preventing the water vapor from condensing and improving the moisture-proof performance.
The 31 diapire in condensation storehouse is the slope form, and its lowest and drain pipe 32 intercommunication to this makes things convenient for the drop of water to assemble and carries out the drainage to drain pipe 32 opening part, and the one end of drain pipe 32 is passed cabinet body 1 lateral wall and is extended to outside the cabinet body 1, and with this water of condensing in the condensation storehouse 31 of discharging, avoid water to evaporate again and make dry air become moist, with this promotion dehumidification efficiency. The inside diameter of the drain duct 32 is smaller than that of the intake duct 21, thereby reducing the overflowed air and maintaining the air pressure balance in the cabinet 1. The drain pipe 32 is provided with a one-way valve 321 for only supplying water to the outside of the cabinet 1, and a pressure value required by the one-way valve 321 for conduction is smaller than a preset air pressure value of the air pressure sensor 23, so that the drain pipe 32 is prevented from being blocked to influence the discharge of water.
Referring to fig. 6, the air-out pipe 22 has been seted up the filling opening on one section by condensation storehouse 31, and the air-out pipe 22 intussuseption is filled with dry cotton 221, and dry cotton 221 passes through in the filling opening gets into air-out pipe 22, and dry cotton 221 is used for promoting the degree of dryness of air, improves air resistance simultaneously, increases the atmospheric pressure in the cavity to promote dehumidification efficiency. And the upper cover of the filling opening is provided with a sealing cover 225, the sealing cover 225 is arc-shaped, one side of the dry cotton 221, which is far away from the condensation bin 31, is provided with a filter screen 222, the filter screen 222 and the sealing cover 225 are welded and fixed, when the sealing cover 225 and the air outlet pipe 22 are fixed through screws, the filter screen 222 cuts off a channel of the air outlet pipe 22, so that the dry cotton 221 is prevented from entering the cabinet body 1.
The implementation principle of the embodiment is as follows: the air supply part 24 sucks the air in the cabinet body 1 into the air inlet pipe 21, the air in the air inlet pipe 21 enters a cavity formed by the condensation bin 31 and the condensation sheet 33, meanwhile, the heat dissipation part 25 reduces the temperature of the surface of the condensation sheet 33 when in operation, so that water in the air in the cabinet body 1 is condensed into water drops when meeting the condensation, the water drops slide to the drain pipe 32 at the bottom of the condensation bin 31 along the condensation sheet 33 to be discharged, the dried air returns to the cabinet body 1 along the air outlet pipe 22 to circulate, the water in the air in the power distribution cabinet is continuously absorbed, the air humidity is reduced, and the electric elements in the power distribution cabinet are protected.
The fan 251 increases the air flow rate on the surface of the condensing sheet 33 during operation, so as to reduce the temperature of the condensing sheet 33, so that the moist air meets condensation when entering the condensing bin 31, thereby realizing the effect of drying air and improving the moisture-proof effect.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.

Claims (10)

1. Dampproofing switch board of high strength, its characterized in that: including the cabinet body (1), be provided with air supply subassembly (2) and condensation subassembly (3) in the cabinet body (1), condensation subassembly (3) include condensation storehouse (31), set up in condensation storehouse (31) by condensation piece (33) in the cabinet body (1) outside and with drain pipe (32) of condensation storehouse (31) bottom intercommunication, form confined cavity between condensation piece (33) and condensation storehouse (31), air supply subassembly (2) including air-supply line (21) with condensation storehouse (31) top intercommunication, with air-out pipe (22) of condensation storehouse (31) intercommunication and be used for driving air-supply line (21) and air-out pipe (22) interior gas flow's air supply piece (24), air supply piece (24) are used for pumping the interior gas of the cabinet body (1) and pass through air-supply line (21), condensation storehouse (31) and air-out pipe (22) in proper order again and get back to the cabinet body (1), the cabinet body (1) lie in one side of condensation piece (33) outward and be provided with and be used for reducing condensation piece (33) temperature The heat sink (25).
2. The high strength moisture-proof power distribution cabinet of claim 1, wherein: the air inlet pipe (21) and the air outlet pipe (22) are respectively positioned at two sides of an electric element in the cabinet body (1), the air inlet pipe (21) and the air outlet pipe (22) are respectively provided with a ventilation port distributed at intervals along the height direction of the cabinet body (1), the ventilation ports face one side of an electric appliance, the ventilation port of the air inlet pipe (21) is positioned at the position of the side wall of the cabinet body (1) close to the bottom of the cabinet body, and the ventilation port of the air outlet pipe (22) is positioned at the position of the side wall of the cabinet body (1) close to the top of the cabinet body.
3. The high strength moisture-proof power distribution cabinet of claim 1, wherein: the air supply piece (24) comprises an air pump (241) arranged in the cabinet body (1), and an air outlet of the air pump (241) is communicated with the condensation bin (31) through an air inlet pipe (21).
4. The high strength moisture-proof power distribution cabinet of claim 1, wherein: it has dry cotton (221) to go out tuber pipe (22) to lean on one section of condensation storehouse (31) to fill, one side that condensation storehouse (31) was kept away from in dry cotton (221) is provided with filter screen (222), and filter screen (222) are connected with air-out pipe (22).
5. The high strength moisture-proof power distribution cabinet of claim 1, wherein: go out the tuber pipe (22) and go up the one end of leaning on condensation storehouse (31) and be provided with solenoid valve (223), be provided with in the cabinet body (1) and be connected controller (224) with control solenoid valve (223) switching with solenoid valve (223) electricity, be provided with baroceptor (23) in condensation storehouse (31), baroceptor (23) output overvoltage signal when atmospheric pressure in the cavity is higher than preset atmospheric pressure value, controller (224) are connected with baroceptor (23) electricity and are opened in order to receive and respond to overvoltage signal control solenoid valve (223).
6. The high strength moisture-proof power distribution cabinet of claim 1, wherein: the heat dissipation member (25) comprises a fan (251) arranged outside the cabinet body (1), and an air outlet of the fan (251) is opposite to the condensation sheet (33).
7. The high strength moisture-proof power distribution cabinet of claim 1, wherein: the cabinet is characterized in that the cabinet body (1) is provided with a mounting hole (11), the condensation sheet (33) is covered on the mounting hole (11) and provided with a heat insulation ring (12) on the edge, and the heat insulation ring (12) is detachably fixed with the edge of the mounting hole (11).
8. The high strength moisture-proof power distribution cabinet of claim 1, wherein: a plurality of contact sheets (34) are arranged on one side of the condensation sheet (33) facing the condensation bin (31), and the surface of each contact sheet (34) is perpendicular to the condensation sheet (33).
9. The high strength moisture-proof power distribution cabinet of claim 8, wherein: the contact sheets (34) are all triangular, the edges of the contact sheets (34) are connected with the condensation sheets (33), and the tips of the contact sheets are inclined downwards.
10. The high strength moisture-proof power distribution cabinet of claim 5, wherein: one end of the drain pipe (32) penetrates through the side wall of the cabinet body (1) and extends to the outside of the cabinet body (1), a one-way valve (321) which only supplies water to flow out of the cabinet body (1) is arranged on the drain pipe (32), and the pressure value required by the conduction of the one-way valve (321) is smaller than the preset air pressure value of the air pressure sensor (23).
CN201911394165.0A 2019-12-30 2019-12-30 High-strength moisture-proof power distribution cabinet Pending CN111049017A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911394165.0A CN111049017A (en) 2019-12-30 2019-12-30 High-strength moisture-proof power distribution cabinet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911394165.0A CN111049017A (en) 2019-12-30 2019-12-30 High-strength moisture-proof power distribution cabinet

Publications (1)

Publication Number Publication Date
CN111049017A true CN111049017A (en) 2020-04-21

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Application Number Title Priority Date Filing Date
CN201911394165.0A Pending CN111049017A (en) 2019-12-30 2019-12-30 High-strength moisture-proof power distribution cabinet

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Country Link
CN (1) CN111049017A (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2160630Y (en) * 1993-03-13 1994-04-06 成都市立华技术研究所 Dampproof box
CN203377489U (en) * 2013-08-08 2014-01-01 国家电网公司 Switch cabinet dehumidifying apparatus
CN103779796A (en) * 2014-03-01 2014-05-07 无锡佳谊林电气有限公司 Dehumidifier
CN206894027U (en) * 2017-07-12 2018-01-16 青岛博瑞电气有限公司 A kind of waterproof and dampproof type low-voltage distribution cabinet
CN207381791U (en) * 2017-11-04 2018-05-18 华翔翔能电气股份有限公司 Anti-condensation distribution box

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2160630Y (en) * 1993-03-13 1994-04-06 成都市立华技术研究所 Dampproof box
CN203377489U (en) * 2013-08-08 2014-01-01 国家电网公司 Switch cabinet dehumidifying apparatus
CN103779796A (en) * 2014-03-01 2014-05-07 无锡佳谊林电气有限公司 Dehumidifier
CN206894027U (en) * 2017-07-12 2018-01-16 青岛博瑞电气有限公司 A kind of waterproof and dampproof type low-voltage distribution cabinet
CN207381791U (en) * 2017-11-04 2018-05-18 华翔翔能电气股份有限公司 Anti-condensation distribution box

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