CN118841859B - An outdoor ring network cabinet based on photovoltaic cooling and dehumidification - Google Patents
An outdoor ring network cabinet based on photovoltaic cooling and dehumidificationInfo
- Publication number
- CN118841859B CN118841859B CN202411101486.8A CN202411101486A CN118841859B CN 118841859 B CN118841859 B CN 118841859B CN 202411101486 A CN202411101486 A CN 202411101486A CN 118841859 B CN118841859 B CN 118841859B
- Authority
- CN
- China
- Prior art keywords
- air inlet
- photovoltaic panel
- cover
- top cover
- box
- 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.)
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/56—Cooling; Ventilation
- H02B1/565—Cooling; Ventilation for cabinets
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/28—Casings; Parts thereof or accessories therefor dustproof, splashproof, drip-proof, waterproof or flameproof
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/46—Boxes; Parts thereof or accessories therefor
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/46—Boxes; Parts thereof or accessories therefor
- H02B1/48—Mounting of devices therein
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/50—Pedestal- or pad-mounted casings; Parts thereof or accessories therefor
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other DC sources, e.g. providing buffering
- H02J7/35—Parallel operation in networks using both storage and other DC sources, e.g. providing buffering with light sensitive cells
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Photovoltaic Devices (AREA)
Abstract
本申请涉及一种基于光伏降温除湿的户外环网柜箱体，其包括箱体，箱体上设置有进气口、出气口、进风风机，箱体上还设置有：光伏板，其电力输出端与进风风机电连接；干燥盒，设于出气口处，其内部填充有硅胶干燥剂层；顶罩，顶罩升降滑动设置于箱体的上开口中，进气口设置于顶罩顶部周侧；控流机构，被配置为当光伏板发电平稳时维持顶罩顶升状态，以及当光伏板发电效率降低后实现顶罩下移；当顶罩下移时，进气口通气量降低；干燥机构，被配置为当光伏板发电平稳时干燥硅胶干燥剂层；导流机构，被配置为将进气口气流引导至光伏板背面。本申请可根据日照强弱变化自适应增加减小箱体内进风量，可同时兼顾在高温和低温环境下的降温除湿问题。
The present application relates to an outdoor ring network cabinet box based on photovoltaic cooling and dehumidification, which includes a cabinet, which is provided with an air inlet, an air outlet, and an air inlet fan. The cabinet is also provided with: a photovoltaic panel, whose power output end is electrically connected to the air inlet fan; a drying box, which is provided at the air outlet and filled with a silica gel desiccant layer; a top cover, which is arranged in an upper opening of the cabinet for lifting and sliding, and the air inlet is arranged on the side of the top of the top cover; a flow control mechanism, which is configured to maintain the top cover in an elevated state when the photovoltaic panel is generating stable power, and to lower the top cover when the photovoltaic panel's power generation efficiency decreases; when the top cover is lowered, the air flow at the air inlet is reduced; a drying mechanism, which is configured to dry the silica gel desiccant layer when the photovoltaic panel is generating stable power; and a flow guide mechanism, which is configured to guide the airflow from the air inlet to the back of the photovoltaic panel. The present application can adaptively increase or decrease the air intake volume in the cabinet according to changes in sunlight intensity, and can simultaneously take into account the cooling and dehumidification problems in high and low temperature environments.
Description
Technical Field
The application relates to the technical field of ring main units, in particular to an outdoor ring main unit box body based on photovoltaic cooling and dehumidification.
Background
The ring main unit is high-voltage distribution equipment, is mainly used in a ring network power supply system, and is a key component for realizing ring network power supply. The main function of the ring main unit is to distribute and switch high-voltage power and ensure the efficient and reliable operation of the power system. The ring main unit is internally provided with various electrical components, such as a switch, a circuit breaker, a transformer and the like, heat can be generated in the operation process of the equipment, if the heat cannot be timely emitted, the internal temperature can be increased, and the ring main unit is usually installed outdoors or in a semi-outdoor environment and is easily affected by humidity, so that the insulating performance of insulating materials can be reduced by the humidity, and the fault risk of the electrical components is increased.
The utility model provides a chinese patent of application number CN202210396259.7 in the related art, a outdoor looped netowrk cabinet box based on dehumidification of photovoltaic integration method cooling is proposed, the on-line screen storage device comprises a base, set up the box on the base and set up the top cap at the box top, the box includes box frame and installs box normal door and a plurality of box side door at box frame, transparent plate and photovoltaic board are installed to the middle part of box normal door in proper order from outside to inside in order, transparent plate and photovoltaic board interval set up and make form the wall room chamber between transparent plate and the photovoltaic board, the box normal door is equipped with the first gas outlet with wall room chamber lower extreme intercommunication in the below of photovoltaic board, the box normal door is equipped with the second gas outlet with wall room chamber upper end intercommunication in the top of transparent plate, be equipped with the air inlet on the box side door. According to the invention, an open normalized air circulation is formed between the box body and the external environment under the illumination condition, the ring main unit is not required to be cooled and dehumidified by additional energy, and the photovoltaic panel power generation efficiency can be improved while the ring main unit is cooled and dehumidified.
The related technology has the following defects that as the temperature of the silicon-based photovoltaic panel is increased, the reduction range of the photoelectric conversion efficiency of the silicon-based photovoltaic panel is increased continuously, researches show that the ideal working temperature of the photovoltaic panel is 25 ℃, the photoelectric conversion efficiency of the photovoltaic panel is reduced by 0.3% -0.5% when the temperature is increased by 1 ℃, the service life of the photovoltaic array is shortened at a higher operating temperature, and the scheme expects to realize cold and hot air circulation in a box body through a closed sunning structure in a wall chamber cavity, and in hot summer, the cold and hot air circulation efficiency is greatly influenced, and the cold and hot air circulation is insufficient for cooling the box body in a ring main unit, and in low-temperature seasons, the dehumidification effect is also unobvious, so that the practical use experience is influenced.
Disclosure of Invention
In order to solve the problem that the existing ring main unit is difficult to cool and dehumidify in high-temperature and low-temperature environments, the application provides an outdoor ring main unit based on photovoltaic cooling and dehumidification.
The application provides an outdoor ring main unit box based on photovoltaic cooling and dehumidification, which adopts the following technical scheme:
The utility model provides an outdoor looped netowrk cabinet box based on dehumidification of photovoltaic cooling, includes the box, the box top is provided with the air inlet, the bottom is provided with the gas outlet, be provided with on the box and be used for with the outside air certainly the air inlet fan that the air inlet lets in, still be provided with on the box:
the photovoltaic panel is arranged on the front side of the box body, and the power output end of the photovoltaic panel is electrically connected with the air inlet fan;
the drying box is arranged at the air outlet, and a silica gel drying agent layer is filled in the drying box;
The top cover is provided with an upper opening at the top of the box body, the top cover is arranged in the upper opening in a lifting sliding manner, and the air inlet is arranged at the periphery of the top cover;
The flow control mechanism is configured to maintain the jacking state of the top cover when the power generation of the photovoltaic panel is stable, and realize the downward movement of the top cover after the power generation efficiency of the photovoltaic panel is reduced;
A drying mechanism configured to dry the silica gel desiccant layer within the drying box when the photovoltaic panel is generating electricity smoothly;
and the flow guiding mechanism is configured to guide the air flow from the air inlet to the back surface of the photovoltaic panel.
Still further, the flow control mechanism includes:
the base is fixedly connected in the box body;
The control console is fixedly connected to the bottom of the top cover and is arranged in an up-down correspondence with the base;
the electromagnet is arranged on the base, and the power output end of the photovoltaic panel is in ferroelectric connection with the electromagnet;
A permanent magnet installed at the bottom of the console and having the same top magnetic pole as the magnetic pole of the electromagnet after being electrified, and
The control cover is fixedly connected to the upper opening of the box body, the top cover is arranged in the control cover in a sliding mode, and when the permanent magnet is attached to the electromagnet, the control cover does not completely seal the air inlet.
Still further, the top cover is provided with:
the dust separation cover is fixedly connected to the top of the top cover, and the outer diameter of the dust separation cover is larger than that of the top cover;
And the baffle edge is fixedly connected to the outer edge of the dust-proof cover and extends towards the direction close to the control cover, and the projection of the baffle edge on the outer peripheral side of the top cover completely covers the air inlet.
Still further, the flow guiding mechanism comprises:
The air guide cover is arranged in the box body, an upper end opening of the air guide cover points to an air outlet end of the air inlet fan, and when the top cover moves downwards until the ventilation amount of the air inlet is reduced to the lowest, the top cover closes the upper end opening of the air guide cover;
the soaking cover is covered on the back surface of the photovoltaic panel;
The air guide pipe is connected with the air guide cover and the soaking cover;
the exhaust port is formed in the outer wall of the box body and communicated with the inner cavity of the soaking cover, and is positioned on the side of the photovoltaic panel.
Still further, the method further comprises:
the fins are fixedly connected to the inner wall of the soaking cover and divide the inner cavity of the soaking cover into a plurality of flow channels, one end of each flow channel is communicated with the air guide pipe, and the other end of each flow channel is communicated with the exhaust port.
Still further, the flow channel is straight, serpentine, bent or convoluted.
Furthermore, a guide cover positioned between the exhaust port and the photovoltaic panel is fixedly connected to the outer wall of the box body, and the guide direction of the guide cover outlet is deviated from the arrangement of the photovoltaic panel.
And the storage battery is connected with the air inlet fan electrically, and the storage battery is connected with the air inlet fan only when the top cover moves down to the position that the ventilation amount of the air inlet is reduced to the lowest.
Still further, drying mechanism including set up in the heating wire in the drying box, the heating wire with photovoltaic board power output end electricity is connected.
In summary, the beneficial technical effects of the application are as follows:
1. When the sunlight is sufficient, the photovoltaic panel can convert solar energy into electric energy, and part of the converted electric energy is directly supplied to the air inlet fan for working, and when the air inlet fan works, external cold air can be conveyed into the box body through the air inlet to efficiently dissipate heat of electric elements in the box body, and particularly when the outdoor temperature is high in summer, the outdoor sunlight is sufficient, and the heat dissipation effect of the box body is better; the other part of electric energy is supplied to the drying mechanism, the silica gel drying agent layer in the drying box can be dried, the silica gel drying agent layer can be recovered to absorb moisture so as to be reused for a plurality of times, so that the box body can ensure good dehumidification effect in different seasons;
2. When the air inlet fan works, the air flow output by the air inlet fan is guided to the back of the photovoltaic panel by the flow guiding mechanism, so that the temperature of the photovoltaic panel in a high-temperature environment can be obviously reduced, the photoelectric conversion efficiency of the photovoltaic panel is ensured, and the solar energy can be fully utilized as much as possible; the outdoor environment temperature is correspondingly reduced after the sunlight intensity is weakened, the heat dissipation requirement is weakened, the top cover moves downwards at the moment, the ventilation quantity of the air inlet is reduced, dust, moisture and the like can be effectively reduced and sucked into the box body, and therefore the box body can simultaneously realize the cooling and dehumidification under the high-temperature and low-temperature environment;
3. Through setting the air inlet fan to PWM direct current fan or take the alternating current fan of converter for when the direct current or the alternating current that the photovoltaic board output under different illumination change, can make the air supply volume of air inlet fan and the air inlet adaptation that shows on the top cap, can carry out better adaptation with outdoor ambient temperature, reduce the energy consumption.
Drawings
FIG. 1 is a schematic cross-sectional view of an embodiment of the present application;
FIG. 2 is a schematic cross-sectional view of an embodiment of the present application primarily for illustrating the internal structure of a soaking cover;
fig. 3 is an enlarged partial schematic view of the portion a in fig. 1.
Reference numerals illustrate:
1. The box body comprises a box body, 11, an air inlet, 12, an air outlet, 13, an air inlet fan, 14, a drying box, 141, a silica gel drying agent layer, 142, an electric heating wire, 15, an upper opening, 16, a control cover, 17, an air outlet, 18, a guide cover, 19 and a side guard plate;
21. 22, a storage battery;
31. 32, a dust-proof cover, 33, a baffle edge;
41. Base, 42, console, 43, electromagnet, 44, permanent magnet;
51. the heat-conducting device comprises an air guide cover, 52, a soaking cover, 53, an air guide pipe, 54, fins, 55 and a runner.
Detailed Description
The following description of the embodiments of the present application will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the application are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
The embodiment of the application discloses an outdoor ring main unit box body based on photovoltaic cooling and dehumidification. Referring to fig. 1, the air conditioner comprises a box body 1, wherein an air inlet 11 is formed in the top of the box body 1, an air outlet 12 is formed in the bottom of the box body, the air outlet 12 is specifically formed in the side wall of the bottom of the box body 1, dust-proof nets are arranged at the positions of the air inlet 11 and the air outlet 12 of the box body 1, an air inlet fan 13 for introducing external air from the air inlet 11 is arranged on the box body 1, and the air inlet fan 13 is an axial flow fan.
The box body 1 is also provided with:
The photovoltaic panel 21 is arranged on the front side of the box body 1, the power output end of the photovoltaic panel 21 is electrically connected with the air inlet fan 13 after integrating current through the inverter, the photovoltaic panel 21 is specifically obliquely arranged, and the photovoltaic panel 21 can be fixedly arranged on the box body 1 or can be hinged on the box body 1 and locks the adjusted angle through bolts and nuts at the hinge shaft;
The drying box 14 is arranged at the air outlet 12, a silica gel drying agent layer 141 is filled in the drying box, and the silica gel drying agent layer 141 can be heated, dried and reused after absorbing moisture;
The top cover 31, the upper shed 15 has been seted up at box 1 top, and top cover 31 lift slides and sets up in upper shed 15, and air inlet 11 sets up in top cover 31 top week side, and specifically, air inlet 11 is a plurality of equipartitions at the through-hole of top cover 31 top week side, and air inlet fan 13 is located top cover 31 inner chamber. And
The flow control mechanism is configured to maintain the jacking state of the top cover 31 when the power generation of the photovoltaic panel 21 is stable, and realize the downward movement of the top cover 31 after the power generation efficiency of the photovoltaic panel 21 is reduced, and reduce the ventilation amount of the air inlet 11 when the top cover 31 is downward moved, wherein the stable power generation of the photovoltaic panel 21 means that the power generation efficiency of the photovoltaic panel 21 is reduced when the sunlight is sufficient, and means that the sunlight intensity is reduced or even no illumination is generated;
A drying mechanism configured to dry the silica gel desiccant layer 141 inside the drying box 14 when the power generation of the photovoltaic panel 21 is stabilized;
a flow guiding mechanism configured to guide the air flow of the air inlet 11 to the back surface of the photovoltaic panel 21;
The photovoltaic panel 21 is electrically connected to the battery 22, the battery 22 is electrically connected to the air intake fan 13, and the battery 22 is connected to the air intake fan 13 only when the top cover 31 is moved down to minimize the ventilation of the air intake 11.
After the arrangement, by means of the box body 1, when sunlight is sufficient, the photovoltaic panel 21 can convert solar energy into electric energy, and part of the converted electric energy is directly supplied to the air inlet fan 13 to work, and when the air inlet fan 13 works, external cold air can be conveyed into the box body 1 through the air inlet 11 so as to efficiently dissipate heat of electric elements in the box body 1, especially when outdoor temperature is high in summer, outdoor sunlight is sufficient, the heat dissipation effect of the box body 1 is better, the other part of electric energy is supplied to the drying mechanism, the silica gel desiccant layer 141 in the drying box 14 can be dried, the moisture absorption capacity of the silica gel desiccant layer 141 in the drying box 14 can be recovered, and therefore, when sunlight is recovered outdoors, the drying box 14 can recover the moisture absorption capacity so as to be reused for multiple times, and therefore, good dehumidification effect can be ensured in different seasons, and further part of electric energy stored in the storage battery 22 can be reduced to the most low in the storage battery 22, and even the air inlet fan 13 can be supplied with the electric energy for a long time, and the effect of the air inlet fan 13 can be ensured.
In addition, when the air inlet fan 13 works, the air flow output by the air inlet fan 13 can be guided to the back of the photovoltaic panel 21 by the flow guiding mechanism, so that the temperature of the photovoltaic panel 21 in a high-temperature environment can be obviously reduced, the photoelectric conversion efficiency of the photovoltaic panel 21 is ensured, solar energy can be fully utilized as much as possible, and the dependence of the box body 1 of the application on external energy sources is reduced. Meanwhile, under the action of the flow control mechanism, when the sunlight intensity is high, the top cover 31 is lifted to the highest, the ventilation amount of the air inlet 11 is the largest, a large amount of external cold air can be conveyed into the box body 1 to be cooled when the air inlet fan 13 works, after the sunlight intensity is weakened, the outdoor environment temperature is correspondingly reduced, the heat dissipation requirement is weakened, at the moment, the top cover 31 moves downwards, the ventilation amount of the air inlet 11 is reduced, and dust, moisture and the like can be effectively reduced and sucked into the box body 1. Therefore, the box body 1 can simultaneously take account of the cooling and dehumidifying problems under the high-temperature and low-temperature environments.
Specifically, referring to fig. 1, the flow control mechanism includes:
The base 41 is fixedly connected in the box body 1, and the base 41 can be used for supporting the air inlet fan 13;
The console 42 is fixedly connected to the bottom of the top cover 31, specifically, the lower part of the top cover 31 is fixedly connected with a hollowed-out bracket, the console 42 is fixedly connected to the middle part of the bracket, and the console 42 and the base 41 are correspondingly arranged up and down;
The electromagnet 43 is arranged on the base 41, and the power output end of the photovoltaic panel 21 is electrically connected with the electromagnet 43 after integrating current through an inverter;
A permanent magnet 44 mounted on the bottom of the console 42 and having the same top pole as that of the electromagnet 43 after being energized, and
The control cover 16 is fixedly connected to the upper opening 15 of the box body 1, the top cover 31 is arranged in the control cover 16 in a sliding manner, and when the permanent magnet 44 is attached to the electromagnet 43, the control cover 16 does not completely seal the air inlet 11;
Also, in a specific arrangement, to ensure the smoothness of sliding of the top cover 31 within the control cover 16, a plurality of sets of electromagnet 43 and permanent magnet 44 may be provided in combination arrangement to reduce the probability of sliding and jamming of the top cover 31 within the control cover 16. On the other hand, the air intake fan 13 may be configured as an automatic rotation speed adjusting fan having rotation speed adjusted synchronously with the current, such as a PWM direct current fan, an alternating current fan with a frequency converter, or the like.
After the arrangement, when the outdoor sunlight is sufficient, the electromagnet 43 is electrified to generate magnetism, and a stronger magnetic repulsive force can be formed between the electromagnet 43 and the permanent magnet 44 on the base 41 of the control console 42, so that the control console 42 drives the top cover 31 to move upwards in the control cover 16, the air inlet 11 on the top cover 31 is more exposed, the ventilation quantity at the air inlet 11 is increased, the rotating speed of the air inlet fan 13 is also increased, the heat dissipation effect of the box 1 is better, correspondingly, when the sunlight intensity is reduced, the current output by the photovoltaic panel 21 is reduced, the magnetic force of the electromagnet 43 attached to magnetism is reduced, the top cover 31 moves downwards, the part of the air inlet 11 on the top cover 31, which is shielded by the control cover 16, reduces the ventilation quantity at the air inlet 11, and meanwhile, the rotating speed of the air inlet fan 13 is also reduced under the influence of the current reduction, and the heat dissipation effect of the box 1 can be well adapted to the outdoor environment temperature, and the energy consumption is reduced.
Further, referring to fig. 1, the top cover 31 is provided with:
the dust separation cover 32 is fixedly connected to the top of the top cover 31, and the outer diameter of the dust separation cover 32 is larger than that of the top cover 31;
a baffle edge 33 fixedly connected to the outer edge of the dust-proof cover 32 and extending in a direction approaching the control cover 16, and the projection of the baffle edge 33 on the outer peripheral side of the top cover 31 completely covers the air inlet 11.
In this way, by means of the arrangement of the upper blocking edge 33 of the dust-proof cover 32, rainwater or dust in the environment can be blocked to a certain extent, and thus the cleanliness in the box body 1 can be improved.
Further, referring to fig. 1, 2 and 3, the above-described diversion mechanism includes:
The air guide cover 51 is arranged in the box body 1, the upper end opening of the air guide cover is directed to the air outlet end of the air inlet fan 13, and when the top cover 31 moves down to the air inlet 11 and the ventilation amount is reduced to the lowest, the top cover 31 closes the upper end opening of the air guide cover 51;
The soaking cover 52 is covered on the back surface of the photovoltaic panel 21, and a cavity is formed between the inner wall of the soaking cover 52 and the back surface of the photovoltaic panel 21;
the air guide pipe 53 is connected with the air guide cover 51 and the soaking cover 52, and the air guide pipe 53 is specifically a flat pipe;
The exhaust port 17 is arranged on the outer wall of the box body 1 and communicated with the inner cavity of the soaking cover 52, the exhaust port 17 is positioned at the side of the photovoltaic panel 21, when the photovoltaic panel 21 is hinged on the box body 1, the air guide pipe 53 is specifically a hose, and the exhaust port 17 can be specifically an exhaust pipe and is connected to the photovoltaic panel 21.
The fins 54 are fixedly connected to the inner wall of the soaking cover 52, and divide the inner cavity of the soaking cover 52 into a plurality of flow channels 55, one end of each flow channel 55 is communicated with the air guide pipe 53, the other end of each flow channel 55 is communicated with the exhaust port 17, and each flow channel 55 is in a straight shape, a serpentine shape, a bent shape or a vortex shape, so that the circulation time of cold air flow in the flow channels 55 can be prolonged, and the cooling effect of the photovoltaic panel 21 can be improved.
And, fixedly connected with is located the kuppe 18 between gas vent 17 and the photovoltaic board 21 on the box 1 outer wall, and kuppe 18 export water conservancy diversion direction deviates from photovoltaic board 21 setting to the air current after the heat transfer with photovoltaic board 21 blows to photovoltaic board 21 surface again. And, the bottom and side edges of the photovoltaic panel 21 are both provided with side guard plates 19, wherein the side guard plates 19 at the bottom are arc-shaped, and the side guard plates 19 at the side edges are fan-shaped, so that gaps between the photovoltaic panel 21 and the box body 1 are blocked when the photovoltaic panel 21 is turned over to adjust the angle, or the photovoltaic panel 21 and the soaking cover 52 are directly arranged on the outer surface of the box body 1, and the external soaking cover 52 and the internal wind guide cover 51 are connected only by a flexible wind guide pipe 53.
Like this, when the illumination of outdoor environment is sufficient, the electric energy that photovoltaic board 21 converted is comparatively stable, the higher state of air inlet 11 ventilation volume that top cap 31 maintained above that this moment, air inlet fan 13 is at the during operation, the cold air current of a portion wind can circulate to soaking cover 52 through wind scooper 51 and guide duct 53, and circulate simultaneously in a plurality of runners 55 that a plurality of fins 54 separate in soaking cover 52, can carry the heat at photovoltaic board 21 back and discharge from gas vent 17, thereby can carry out good cooling to photovoltaic board 21, in order to ensure as far as possible that photovoltaic board 21 can be in the state of high photoelectric conversion efficiency all the time. When the outdoor environment is insufficient or even no light is provided, the top cover 31 moves downwards, so that the air inlet amount of the air guide cover 51 can be reduced until the air inlet end of the air guide cover 51 is completely closed, reverse surge of external air flow at night or in rainy season can be effectively avoided, and the heat dissipation air flow output by the air inlet fan 13 when the power is supplied by the storage battery 22 is ensured to be mainly blown to the electric element in the box body 1, so that the heat dissipation air flow of the air inlet fan 13 under different conditions is fully utilized.
Referring to fig. 1, the drying mechanism includes a heating wire 142 provided in the drying box 14, and the heating wire 142 is electrically connected to the power output end of the photovoltaic panel 21. That is, when the photovoltaic panel 21 generates electric energy under sufficient illumination, the silica gel desiccant layer 141 in the drying box 14 can be heated and dried by the heating wire 142, and moisture absorbed in the silica gel desiccant layer 141 is discharged from the air outlet 12 under the circulation of the heat dissipation air flow in the case 1. This results in the reuse of the drying box 14.
The embodiment of the application discloses an outdoor ring main unit box body based on photovoltaic cooling and dehumidification, which comprises the following implementation principle:
When the sunlight is sufficient, the photovoltaic panel 21 can convert solar energy into electric energy, and one part of the converted electric energy is directly supplied to the air inlet fan 13 for working, when the air inlet fan 13 works, external cold air can be conveyed into the box body 1 through the air inlet 11 so as to efficiently dissipate heat of electric elements in the box body 1, especially when the outdoor temperature is high in summer, the outdoor sunlight is sufficient, the heat dissipation effect of the box body 1 is better, the other part of the electric energy is supplied to the heating wire 142, the silica gel desiccant layer 141 in the drying box 14 can be dried, the silica gel desiccant layer 141 can restore the moisture absorption capacity, and therefore, when the sunlight is restored outdoors, the silica gel desiccant layer 141 in the drying box 14 can restore the moisture absorption capacity so as to be reused, and therefore, the box body 1 can ensure good dehumidification effect in different seasons, and the other part of the electric energy can be stored in the storage battery 22, and the heat dissipation effect of the air inlet fan 13 can be ensured when the sunlight is reduced to the weakest or even the photovoltaic panel 21 is not provided, and the air inlet fan 13 can continuously last time.
In addition, when the air inlet fan 13 works, the air flow output by the air inlet fan 13 can be guided to the back of the photovoltaic panel 21 by the flow guiding mechanism, so that the temperature of the photovoltaic panel 21 in a high-temperature environment can be obviously reduced, the photoelectric conversion efficiency of the photovoltaic panel 21 is ensured, solar energy can be fully utilized as much as possible, and the dependence of the box body 1 of the application on external energy sources is reduced. Meanwhile, under the action of the flow control mechanism, when the sunlight intensity is high, the top cover 31 is lifted to the highest, the ventilation amount of the air inlet 11 is the largest, a large amount of external cold air can be conveyed into the box body 1 to be cooled when the air inlet fan 13 works, after the sunlight intensity is weakened, the outdoor environment temperature is correspondingly reduced, the heat dissipation requirement is weakened, at the moment, the top cover 31 moves downwards, the ventilation amount of the air inlet 11 is reduced, and dust, moisture and the like can be effectively reduced and sucked into the box body 1. Therefore, the box body 1 can simultaneously take account of the cooling and dehumidifying problems under the high-temperature and low-temperature environments.
Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this application belongs. The terms "first," "second," "third," and the like in the description and in the claims, are not used for any order, quantity, or importance, but are used for distinguishing between different elements. The terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. The word "comprising" or "comprises", and the like, is intended to mean that elements or items that are present in front of "comprising" or "comprising" are included in the word "comprising" or "comprising", and equivalents thereof, without excluding other elements or items. "upper", "lower", "left", "right", etc. are used merely to denote relative positional relationships, which may also change accordingly when the absolute position of the object to be described changes.
The above embodiments are not intended to limit the scope of the application, so that the equivalent changes of the structure, shape and principle of the application are covered by the scope of the application.
Claims (5)
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| CN202411101486.8A CN118841859B (en) | 2024-08-12 | 2024-08-12 | An outdoor ring network cabinet based on photovoltaic cooling and dehumidification |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN207475024U (en) * | 2017-10-12 | 2018-06-08 | 天津市富源电气设备有限公司 | A kind of moisture-proof power transformation box of automatic ventilation |
| CN112490904A (en) * | 2020-11-20 | 2021-03-12 | 陈晓冬 | Automatic adjust radiating protection against insects formula switch board |
| CN213244761U (en) * | 2020-10-29 | 2021-05-18 | 梁显龙 | Communication cabinet |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111817180A (en) * | 2020-06-12 | 2020-10-23 | 阜阳腾冠电力科技有限公司 | Outdoor energy-saving power distribution cabinet |
| CN112563931A (en) * | 2021-01-06 | 2021-03-26 | 南京英臣嘉电子商务有限公司 | Block terminal equipment with heat dissipation and protect function |
| CN114198330A (en) * | 2021-12-22 | 2022-03-18 | 重庆海润节能技术股份有限公司 | A solar roof fan and its operation control method |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207475024U (en) * | 2017-10-12 | 2018-06-08 | 天津市富源电气设备有限公司 | A kind of moisture-proof power transformation box of automatic ventilation |
| CN213244761U (en) * | 2020-10-29 | 2021-05-18 | 梁显龙 | Communication cabinet |
| CN112490904A (en) * | 2020-11-20 | 2021-03-12 | 陈晓冬 | Automatic adjust radiating protection against insects formula switch board |
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