CN113964685A - Can be from cooling formula photovoltaic cabinet that is incorporated into power networks - Google Patents
Can be from cooling formula photovoltaic cabinet that is incorporated into power networks Download PDFInfo
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- CN113964685A CN113964685A CN202111571021.5A CN202111571021A CN113964685A CN 113964685 A CN113964685 A CN 113964685A CN 202111571021 A CN202111571021 A CN 202111571021A CN 113964685 A CN113964685 A CN 113964685A
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- cooling
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- air
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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
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
- H02B1/32—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
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
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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
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
- H02J2300/20—The dispersed energy generation being of renewable origin
- H02J2300/22—The renewable source being solar energy
- H02J2300/24—The renewable source being solar energy of photovoltaic origin
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
- H02J3/381—Dispersed generators
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Photovoltaic Devices (AREA)
Abstract
The invention relates to the field of photovoltaic power matching equipment, in particular to a self-cooling type photovoltaic grid-connected cabinet, which comprises a photovoltaic grid-connected cabinet, an air cooling circulating mechanism, a water circulating mechanism, a ventilating component and a heat preservation component, wherein the air cooling circulating mechanism and the water circulating mechanism are arranged in the photovoltaic grid-connected cabinet, the ventilating component is arranged at the upper part of the photovoltaic grid-connected cabinet, and the heat preservation component is arranged at the periphery and the upper side of the photovoltaic grid-connected cabinet. According to the invention, through the matching of the air-cooled circulation mechanism, the heat preservation component and the ventilation component, the interior of the photovoltaic grid-connected cabinet is sealed under the condition of high external temperature, the air-cooled circulation mechanism enters an internal circulation cooling working state, through the matching of the air-cooled circulation mechanism, the heat preservation component and the ventilation component, the interior of the photovoltaic grid-connected cabinet is communicated with the outside under the condition of low external temperature, and the air-cooled circulation mechanism enters an external circulation cooling working state.
Description
Technical Field
The invention relates to the field of photovoltaic power corollary equipment, in particular to a self-cooling photovoltaic grid-connected cabinet.
Background
Photovoltaic power generation is an important part in the field of renewable new energy, has a high strategic position in the field of new energy in China and has been developed rapidly, wherein grid-connected photovoltaic power generation is used as one type of power generation system, and a centralized large-scale grid-connected photovoltaic power station is generally a national-level power station in grid-connected photovoltaic power generation.
The traditional photovoltaic power generation of China is mainly distributed in western regions, and due to the characteristics of large day-night temperature difference and variable climate in western environment, the traditional grid-connected cabinet cannot be adapted to work in the environment, and the service life of internal components of the grid-connected cabinet can be shortened under the great temperature difference change.
In order to solve the technical problem, a self-cooling type photovoltaic grid-connected cabinet capable of changing the working state of a cooling system along with the change of the external environment is developed.
Disclosure of Invention
In order to overcome the defect that the photovoltaic grid-connected cabinet cannot work normally due to huge change of external environment, the technical problem is as follows: the self-cooling type photovoltaic grid-connected cabinet is capable of changing the working state of a cooling system along with the change of the external environment.
The technical scheme is as follows: the utility model provides a can be from cooling formula photovoltaic cabinet that is incorporated into power networks, including photovoltaic cabinet that is incorporated into power networks, air-cooled circulation mechanism, water circulation mechanism, ventilation part and heat preservation part, photovoltaic cabinet that is incorporated into power networks is placed subaerial through the landing leg, photovoltaic cabinet lower part that is incorporated into power networks is provided with the intermediate layer, photovoltaic cabinet lower part is incorporated into power networks is opened there is the bleeder vent, be provided with air-cooled circulation mechanism and water circulation mechanism in the photovoltaic cabinet that is incorporated into power networks, water circulation mechanism and air-cooled circulation mechanism cooperate, ventilation part sets up on photovoltaic cabinet upper portion that is incorporated into power networks, ventilation part and air-cooled circulation mechanism cooperate, heat preservation part sets up all around the cabinet that is incorporated into power networks and upside, heat preservation part and ventilation part cooperate.
In the preferred technical scheme, the air cooling circulation mechanism comprises an air box shell, an air box cover and a partition plate, the utility model provides a photovoltaic grid-connected cabinet, including bellows shell, bellows cover, bellows lid, baffle, air box cover right flank rigid coupling, baffle right side and bellows shell right flank rigid coupling, baffle right side and the baffle right flank upper end in close contact with of bellows cover, the exhaust fan rigid coupling is on the baffle, exhaust fan upper portion and bellows cover sliding connection, the exhaust fan is located bellows shell intermediate position, drying cabinet and air pipe bilateral symmetry respectively are provided with two, two drying cabinets run through respectively and the rigid coupling is on photovoltaic grid-connected cabinet and bellows shell, air pipe upper surface rigid coupling is in the drying cabinet lower surface.
According to the preferable technical scheme, the ventilation pipeline is provided with a plurality of ventilation openings, the ventilation openings are sequentially increased in length and width from bottom to top, and the width of the ventilation openings at the uppermost side is the same as that of the ventilation pipeline at the inner side.
The optimized technical scheme is that the water circulation mechanism comprises a first water tank, two water pumps, a second water tank, two distribution boxes, cooling water tanks, a cooling pore plate, a communicating pipeline and a first temperature sensing controller, wherein the first water tank is arranged at the position 5m underground, the two water pumps are respectively arranged in the middle of a lower interlayer of a photovoltaic grid-connected cabinet in a front-back symmetrical mode, the second water tank and the distribution boxes are respectively and bilaterally symmetrically fixedly connected in the lower interlayer of the photovoltaic grid-connected cabinet and are communicated with each other, the water pump at the front side is respectively communicated with the two second water tanks through the pipeline, the water pump at the rear side is communicated with the first water tank and the second water tank at the left side through the pipeline, the second water tank at the right side is communicated with the first water tank through the pipeline, the two cooling water tanks are respectively and fixedly connected to the inner sides of two ventilating pipelines, the inside of the cooling water tanks is a cavity, and are communicated with the distribution boxes, every coolant tank outside is provided with a plurality of groups cooling hole board, two of cooling hole board are a set of setting, the inside cavity setting that is of cooling hole board, the cooling hole board of both sides sets up with the coolant tank intercommunication of both sides respectively, be provided with a plurality of intercommunication pipeline between two coolant tank upper ends, first temperature-sensing controller rigid coupling is in the lower part intermediate layer of photovoltaic grid-connected cabinet, the water pump is connected with first temperature-sensing controller electricity, first temperature-sensing controller is used for detecting the temperature in the second water tank.
According to the preferable technical scheme, a partition plate is arranged in the first water tank, the partition plate divides the interior of the first water tank into a central position and an adherence position, the central position and the adherence position of the first water tank are communicated at the lower end of the first water tank, the central position of the first water tank and the left second water tank are communicated through a pipeline and used for water feeding, and the adherence position of the first water tank and the right second water tank are communicated through a pipeline and used for downward return of cooling water.
According to the preferable technical scheme, the inner side of the cooling water tank is provided with a plurality of parallel cooling plates, the parallel cooling plates of the cooling water tank are used for increasing the contact area of air and the parallel cooling plates, and are also used for being matched with a ventilation opening to ventilate in the photovoltaic grid-connected cabinet, and the through holes of the two cooling hole plates in one group are arranged in a staggered mode.
The optimized technical scheme is that the ventilation component comprises a ventilation shell, a sealing cover, a dustproof net, first fixed blocks, first rotating rods, first sliding rods, first limiting blocks, first fixed rods, first straight gears, electric push rods and a second temperature sensing controller, wherein the ventilation shell is fixedly connected to the upper surface of a photovoltaic grid-connected cabinet, the sealing cover is slidably connected to the ventilation shell, the sealing cover is provided with two connecting blocks, the connecting blocks of the sealing cover are fixedly connected with the upper surface of an air box cover, the dustproof net is provided with two dustproof nets, the two dustproof nets are respectively arranged between the ventilation shell and the sealing cover, the dustproof nets are fixedly connected with the ventilation shell, the first fixed blocks are respectively fixedly connected to the lower surface of the sealing cover, each first fixed block is respectively hinged with a first rotating rod, the lower end of each first rotating rod is hinged with a first sliding rod, the inner side of each first sliding rod is fixedly connected with a rack, and the two first limiting blocks form a group, the two first limiting blocks are respectively arranged on the front side and the rear side of the two first sliding rods, the first limiting blocks are fixedly connected with the upper surface of the photovoltaic grid-connected cabinet, the first fixing rods are fixedly connected with the upper surface of the photovoltaic grid-connected cabinet, the upper ends of the first fixing rods are rotatably connected with first straight gears, the first straight gears are located between the two first sliding rods and meshed with racks of the first sliding rods, the electric push rod is arranged on the front portion of the upper surface of the photovoltaic grid-connected cabinet, the power end of the electric push rod is fixedly connected with the left end face of the front side first sliding rod, the second temperature sensing controller is arranged on the front portion of the upper surface of the photovoltaic grid-connected cabinet, and the second temperature sensing controller is electrically connected with the electric push rod.
According to the technical scheme, the front side face and the rear side face of the ventilation shell are respectively provided with the ventilation grooves, the front side face and the rear side face of the sealing cover are respectively provided with the ventilation grooves, the ventilation grooves are obliquely and downwards arranged from inside to outside, the ventilation grooves of the ventilation shell and the sealing cover are in a staggered closed state when the ventilation grooves are not lifted up, the ventilation grooves are used for preventing dust and sealing the environment in the ventilation shell, and when the sealing cover is lifted up, the ventilation grooves of the ventilation shell and the sealing cover are communicated with the outside air.
According to the preferred technical scheme, the heat preservation component comprises trapezoidal heat preservation strips, second fixing rods, second fixing blocks, second rotating rods, second sliding rods, second straight gears, second limiting blocks, limiting sliding blocks and limiting fixing blocks, the trapezoidal heat preservation strips are arranged on the periphery of the photovoltaic grid-connected cabinet, inclined planes between every two adjacent trapezoidal heat preservation strips are matched with each other closely, the wide bottom surfaces of the trapezoids are fixedly connected with the adjacent trapezoidal heat preservation strips of the photovoltaic grid-connected cabinet and the three peripheral outer walls of the trapezoidal heat preservation strips, the upper ends and the lower ends of the rest of the trapezoidal heat preservation strips on the outer wall of the photovoltaic grid-connected cabinet are fixedly connected with the second fixing rods on the upper end and the lower end of the trapezoidal heat preservation strips, the number of the second fixing rods is eight, the trapezoidal heat preservation strips at the cabinet door of the photovoltaic grid-connected cabinet are fixedly connected with the second fixing rods on the upper end and the lower end of the trapezoidal heat preservation strips, the second fixing blocks are symmetrically arranged, the second fixed blocks are respectively positioned at the lower right corner and the upper left corner of the photovoltaic grid-connected cabinet, each second fixed block is respectively hinged with a second rotating rod, the other ends of two adjacent second rotating rods are hinged with second sliding rods in a matched mode, the inner side ends of the second sliding rods are provided with racks, a second straight gear is arranged between the two second sliding rods and is rotatably connected with the first fixed rod, the second straight gear is meshed with the racks of the second sliding rods, second limit blocks are arranged on two sides of each second sliding rod, the second limit blocks are fixedly connected with the upper surface of the photovoltaic grid-connected cabinet, the second sliding rods are slidably connected with the second limit blocks, one limit sliding block and one limit fixed block form a group, two limit sliding blocks are fixedly connected onto each second fixed rod respectively, the limit fixed blocks are fixedly connected into the upper surface of the photovoltaic grid-connected cabinet and an interlayer placing groove, and the limit sliding blocks are slidably connected with the limit fixed blocks.
The invention has the beneficial effects that: the invention seals the inside of the photovoltaic grid-connected cabinet through the matching of the air-cooled circulation mechanism and the ventilation component, the air-cooled circulation mechanism enters the internal circulation working state under the closed state of the heat preservation component to realize the effect of isolating the photovoltaic grid-connected cabinet from the external temperature and simultaneously self-cooling under the condition of high external temperature in the daytime, the inside of the photovoltaic grid-connected cabinet is communicated with the outside through the matching of the air-cooled circulation mechanism and the ventilation component, the air-cooled circulation mechanism enters the external circulation working state under the open state of the heat preservation component to realize the effect of cooling by exchanging heat between the photovoltaic grid-connected cabinet and the outside under the condition of low external temperature at night, in addition, the air-cooled circulation mechanism realizes the effect of accelerating cooling on cooling water in the water circulation mechanism, when the external sand is severe, the system can protect the internal components by being always in the internal circulation state, but also can realize the self-cooling effect.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a sectional view of a part of the three-dimensional structure of the present invention.
Fig. 3 is a partially enlarged sectional view of the three-dimensional structure of the present invention.
Fig. 4 is a partially enlarged sectional view of the air-cooled circulation mechanism of the present invention.
Fig. 5 is an enlarged schematic view of a part of the three-dimensional structure of the water circulation mechanism of the present invention.
Fig. 6 is a schematic perspective view of a part of the water circulation mechanism of the present invention.
Fig. 7 is a sectional view showing a partial perspective structure of the water circulation mechanism of the present invention.
Fig. 8 is a sectional view showing a part of an enlarged perspective structure of the ventilating member of the present invention.
Fig. 9 is another perspective view of the ventilation member of the present invention.
Fig. 10 is a schematic perspective view of the present invention at a.
Fig. 11 is a schematic perspective view of the heat insulating member of the present invention.
Fig. 12 is a schematic perspective view of a part of the heat insulating member of the present invention.
Reference numbers in the drawings: 1: photovoltaic grid-connected cabinet, 2: air-cooled circulation mechanism, 201: bellows shell, 202: bellows lid, 203: separator, 204: exhaust fan, 205: drying oven, 206: ventilation duct, 207: vent, 3: water circulation mechanism, 301: first water tank, 302: water pump, 303: second water tank, 304: distribution box, 305: cooling water tank, 306: cooling orifice plate, 307: communication duct, 308: first temperature-sensing controller, 4: ventilation component, 401: ventilated casing, 402: cover, 403: dust screen, 404: first fixed block, 405: first rotating lever, 406: first slide bar, 407: first stopper, 408: first fixing lever, 409: first straight gear, 410: electric putter, 411: second temperature-sensing controller, 5: thermal insulation member, 501: trapezoidal heat preservation strip, 502: second fixing lever, 503: second fixed block, 504: second rotating shaft, 505: second slide bar, 506: second spur gear, 507: second stopper, 508: limiting slide block, 509: and a limiting fixing block.
Detailed Description
Embodiments of the present invention will be described below with reference to the drawings.
Example 1
A self-cooling type photovoltaic grid-connected cabinet is shown in figures 1 and 2 and comprises a photovoltaic grid-connected cabinet 1, an air cooling circulating mechanism 2, a water circulating mechanism 3, a ventilating component 4 and a heat preservation component 5, wherein the photovoltaic grid-connected cabinet 1 is placed on the ground through supporting legs, an interlayer is arranged on the lower portion of the photovoltaic grid-connected cabinet 1, air holes are formed in the lower portion of the photovoltaic grid-connected cabinet 1, the air cooling circulating mechanism 2 and the water circulating mechanism 3 are arranged in the photovoltaic grid-connected cabinet 1, the water circulating mechanism 3 is matched with the air cooling circulating mechanism 2, the ventilating component 4 is arranged on the upper portion of the photovoltaic grid-connected cabinet 1, the ventilating component 4 is matched with the air cooling circulating mechanism 2, the heat preservation component 5 is arranged on the periphery and the upper side of the photovoltaic grid-connected cabinet 1, and the heat preservation component 5 is matched with the ventilating component 4.
When the photovoltaic grid-connected cabinet 1 works, the working state of the cooling system is changed according to different time and different external temperature, so as to achieve better cooling effect, when the external temperature is very high, the photovoltaic grid-connected cabinet 1 is insulated from the outside to avoid external heat from entering, the inside of the photovoltaic grid-connected cabinet 1 is closed through the cooperation of the air cooling circulating mechanism 2 and the ventilation component 4, the air cooling circulating mechanism 2 enters the internal circulating working state, the internal circulating cooling state of the cooling system is carried out through the cooperation of the air cooling circulating mechanism 2 and the water circulating mechanism 3, when the external temperature is low enough, the heat insulating component 5 is opened, the inside of the photovoltaic grid-connected cabinet 1 is communicated with the outside through the cooperation of the air cooling circulating mechanism 2 and the ventilation component 4, and the air cooling circulating mechanism 2 enters the external circulating working state, and the operation of the air cooling circulating mechanism 2 is carried out through the operation of the air cooling circulating mechanism 2, and the outside air enters and cools the inside of the photovoltaic grid-connected cabinet 1.
Example 2
On the basis of embodiment 1, as shown in fig. 2 to 4, the air-cooled circulation mechanism 2 includes an air-box housing 201, an air-box cover 202, a partition 203, an exhaust fan 204, a drying box 205 and a ventilation duct 206, the air-box housing 201 is fixedly connected to the middle of the upper surface of the photovoltaic grid-connected cabinet 1, the air-box cover 202 is slidably connected to the upper right end of the air-box housing 201 through a support rod, a baffle is fixedly connected between two support rods on the left side of the air-box cover 202, the partition 203 is disposed in the middle of the air-box housing 201, the partition 203 divides the air-box housing 201 into an upper portion and a lower portion, the baffle of the air-box cover 202 is used for separating the upper portion and the lower portion of the air-box housing 201, the exhaust fan 204 is fixedly connected to the partition 203, the upper portion of the exhaust fan 204 is slidably connected to the air-box cover 202, the exhaust fan 204 is disposed in the middle of the air-box housing 201, the exhaust fan 204 is in a working state of exhausting downwards when it is started, the drying box 205 and the ventilation duct 206 are respectively disposed symmetrically left and right, the two drying boxes 205 penetrate through and are fixedly connected on the photovoltaic grid-connected cabinet 1 and the air box shell 201 respectively, the upper surfaces of the two ventilating ducts 206 are fixedly connected on the lower surfaces of the two drying boxes 205 respectively, a plurality of ventilating openings 207 are arranged on the ventilating ducts 206, the length and the width of each ventilating opening 207 are sequentially increased from bottom to top, the width of the ventilating opening 207 at the uppermost side is the same as the width between the inner sides of the ventilating ducts 206, under the work of the exhaust fan 204, the air in the photovoltaic grid-connected cabinet 1 is transported through the ventilation opening 207, because the working pressure of the ventilation duct 206 is different from top to bottom, the air is transported from the ventilation duct 206 to the photovoltaic grid-connected cabinet 1 from bottom to top, therefore, the length and width of the ventilation opening 207 are set to be increased from bottom to top in order to achieve a better ventilation effect in cooperation with the water circulation mechanism 3, and the width of the uppermost ventilation opening 207 is set to be the same as the width between the inner sides of the ventilation duct 206.
In the internal circulation state of the air-cooled circulation mechanism 2, the wind box cover 202 is in a closed state, at the moment, the baffle plate of the wind box cover 202 is tightly matched with the left side of the partition plate 203, the left cavity of the wind box shell 201 is communicated with the upper cavity of the right side, at the moment, the air is exhausted downwards through the exhaust fan 204, the air in the ventilation pipeline 206 on the left side enters the left cavity of the wind box shell 201 through the drying box 205, the air enters the lower cavity of the right side of the wind box shell 201 through the exhaust fan 204 from the left cavity of the left side, the air in the lower cavity of the right side of the wind box shell 201 is conveyed to the ventilation pipeline 206 on the right side, the hot air enters the ventilation pipeline 206 from the ventilation opening 207 on the left side in the photovoltaic grid-connected cabinet 1, after the hot air is cooled by the water circulation mechanisms 3 on the left side and the right side, the cold air is exhausted through the ventilation opening 207 on the right side of the ventilation pipeline 206, and the air in the photovoltaic grid-connected cabinet 1 is internally circulated through the process, which is in the internal circulation state of the air-cooled circulation mechanism 2, when the external temperature is low enough, the ventilation component 4 is matched with the air box cover 202 to be opened upwards, the baffle of the air box cover 202 moves upwards at the moment, the baffle of the air box cover 202 is matched with the partition plate 203, the cavity at the lower part of the right side of the air box cover 201 is communicated with the cavity at the left side, the external air enters the air box cover 201 through the periphery of the air box cover 202, the external air is exhausted downwards through the exhaust fan 204 at the moment, the external air enters the cavities at the lower parts of the left side and the right side of the air box cover 201, the external air is dried by the drying box 205 and then enters the photovoltaic grid-connected cabinet 1 through the air duct 206, and the air in the photovoltaic grid-connected cabinet 1 is exhausted through the exhaust holes of the photovoltaic grid-connected cabinet 1, wherein the external circulation state of the air cooling circulation mechanism 2 is described above.
As shown in fig. 3-7, the water circulation mechanism 3 includes a first water tank 301, a water pump 302, a second water tank 303, a distribution tank 304, a cooling water tank 305, a cooling orifice plate 306, a communication pipe 307 and a first temperature sensing controller 308, the first water tank 301 is arranged at 3-5m underground, because the temperature difference between the underground temperature and the ground is large, and the underground temperature is far lower than the ground temperature, the first water tank 301 for providing cooling water is arranged underground in order to maintain the temperature of the cooling water and cool the heated cooling water underground, two water pumps 302 are provided, the two water pumps 302 are respectively arranged in the middle of the lower interlayer of the photovoltaic grid-connected cabinet 1 in a front-back symmetrical manner, the second water tank 303 and the distribution tank 304 are respectively fixed in the lower interlayer of the photovoltaic grid-connected cabinet 1 in a left-right symmetrical manner, the second water tank 303 and the distribution tank 304 are arranged in a communication manner, the water pump 302 at the front side is respectively communicated with the two second water tanks 303 through pipes, the water pump 302 at the rear side is communicated with the first water tank 301 and the second water tank 303 at the left side through pipelines, the second water tank 303 at the right side is communicated with the first water tank 301 through pipelines, the number of the cooling water tanks 305 is two, the two cooling water tanks 305 are respectively and fixedly connected at the inner sides of the two ventilating pipelines 206, the cavity is arranged inside the cooling water tanks 305, the cooling water tanks 305 are used for carrying out heat exchange with the air in the ventilating pipelines 206 to reduce the temperature and limit the flow direction of the air, as the contact area is larger, the heat exchange efficiency is higher, the inner sides of the cooling water tanks 305 are provided with a plurality of parallel cooling plates, the parallel cooling plates are attached to the pipe walls of the ventilating pipelines 206, the flow direction limiting function of the air is realized, the air enters the photovoltaic grid-connected cabinet 1 from the ventilating openings 207 through the gaps between the parallel cooling plates, and because the width of the ventilating openings 207 is changed, the air between the parallel cooling plates at the lower parts of the ventilating pipelines 206 cannot go out, the air can only be discharged from the upper part of the ventilation pipeline 206, so that the average discharge and extraction of air are realized, the cooling water tanks 305 are communicated with the distribution box 304, a plurality of groups of cooling pore plates 306 are arranged outside each cooling water tank 305, two cooling pore plates 306 are arranged in one group, cavities are arranged inside the cooling pore plates 306, the cooling pore plates 306 on two sides are respectively communicated with the cooling water tanks 305 on two sides, through holes of the two cooling pore plates 306 in one group are arranged in a staggered way, so that the reserved time of the air in the ventilation pipeline 206 is prolonged, in order to realize the better cooling effect to air in ventilation pipe 206, be provided with a plurality of intercommunication pipeline 307 between two cooling water tank 305 upper ends, first temperature-sensing controller 308 rigid coupling is in the lower part interlayer of photovoltaic grid-connected cabinet 1, and water pump 302 is connected with first temperature-sensing controller 308 electricity, and first temperature-sensing controller 308 is used for detecting the temperature of water in the second water tank 303.
The water circulation mechanism 3 is used for supplying cooling water to cool air in the photovoltaic grid-connected cabinet 1, two water pumps 302 are started under the induction control of a first temperature induction controller 308, the water pump 302 at the rear side pumps low-temperature cooling water in a first water tank 301 into a second water tank 303 at the left side, the water pump 302 at the front side supplies pressure to the cooling water, so that the cooling water is distributed into a left cooling water tank 305 through a left distribution tank 304, the cooling water enters a right cooling water tank 305 through a communication pipeline 307 at the upper part and then enters a right second water tank 303 through the right distribution tank 304, the cooling water in the right second water tank 303 returns downwards to the first water tank 301, when the temperature of the cooling water in the water circulation realizes the cooling effect maintenance, the first temperature induction controller 308 controls the water pump 302 at the rear side to be closed, the cooling water in the second water tank 303 is not exchanged with the first water tank 301 at the lower part, and the water pump 302 at the front side drives the cooling water above to carry out self-circulation, the cooling water can heat up gradually after absorbing the air in the photovoltaic grid-connected cabinet 1, when the first temperature sensing controller 308 senses that the temperature of the cooling water is not enough to continue cooling, the control starts the water pump 302 at the rear side again, so that the cooling water in the second water tank 303 is exchanged with the cooling water in the first water tank 301, and the above actions are circulated to enable the cooling water tank 305 to maintain the cooling effect on the air in the ventilation pipeline 206.
As shown in fig. 5, a partition is provided in the first water tank 301, the partition divides the inside of the first water tank 301 into a center position and an adherence position, the center position and the adherence position of the first water tank 301 are communicated at the lower end thereof, the center position of the first water tank 301 and the left second water tank 303 are communicated through a pipe for feeding water, and the adherence position of the first water tank 301 and the right second water tank 303 are communicated through a pipe for returning cooling water downward.
The cooling water carries out the heat exchange with the external world through the outer wall of first water tank 301, consequently, carry out the heat exchange for the cooling water after will raising the temperature more with the external world, set up the baffle in the first water tank 301, divide into central point with first water tank 301 is inside puts and adherence position two parts, first water tank 301's baffle adopts thermal insulation material, avoid the inside heat exchange of first water tank 301, and the cooling water of avoiding getting into first water tank 301 mixes with the cooling water that will be taken away, the cooling water that gets into first water tank 301 can be followed adherence position downwards, in the decurrent in-process of cooling water, carry out the heat exchange through first water tank 301 outer wall and external world and cool down gradually the back, get into central point by first water tank 301 lower part again, long time and the process of cooling has been prolonged to this process, there is better cooling effect.
As shown in fig. 8-10, the ventilation component 4 includes a ventilation housing 401, a sealing cover 402, a dust screen 403, a first fixing block 404, a first rotating rod 405, a first sliding rod 406, a first limiting block 407, a first fixing rod 408, a first straight gear 409, an electric push rod 410, and a second temperature sensing controller 411, the ventilation housing 401 is fixedly connected to the upper surface of the photovoltaic grid-connected cabinet 1, the sealing cover 402 is slidably connected to the ventilation housing 401, two connecting blocks are disposed on the sealing cover 402, the connecting blocks of the sealing cover 402 are fixedly connected to the upper surface of the bellows cover 202, ventilation grooves are respectively disposed on the front and rear sides of the ventilation housing 401, ventilation grooves are respectively disposed on the front and rear sides of the sealing cover 402, the ventilation grooves are both disposed from inside to outside and inclined downward, although in an internal circulation state of the air cooling circulation mechanism 2, the sealing effect is achieved by cooperation of the bellows housing 201 and the bellows cover 202, but because an outdoor working environment is unstable, in order to prevent severe environments such as wind and sand, the ventilation grooves of the ventilation shell 401 and the sealing cover 402 are arranged to be inclined downwards from inside to outside, and the ventilation grooves of the ventilation shell 401 and the sealing cover 402 are in a staggered closed state when not lifted up, so as to be used for dust prevention and sealing of the environment in the ventilation shell 401, when the sealing cover 402 is lifted up, the ventilation grooves of the ventilation shell 401 and the sealing cover 402 are communicated with the outside air, and the air box cover 202 is taken up together, so that the air cooling circulation mechanism 2 is communicated with the ventilation part 4, the outside air enters the ventilation shell 401 and the air box shell 201 through the ventilation grooves and the dust nets 403, the dust nets 403 are provided with two dust nets 403, the two dust nets 403 are respectively arranged between the ventilation shell 401 and the sealing cover 402, the dust nets 403 are fixedly connected with the ventilation shell 401, the two first fixing blocks 404 are respectively fixedly connected to the lower surface of the sealing cover 402, each first fixing block 404 is respectively hinged with a first rotating rod 405, the lower end of each first rotating rod 405 is hinged with a first sliding rod 406, the inner side of the first sliding rod 406 is fixedly connected with a rack, two first limiting blocks 407 are in a group, the two first limiting blocks 407 are respectively arranged on the front side and the rear side of the two first sliding rods 406, the first limiting blocks 407 are fixedly connected with the upper surface of the photovoltaic grid-connected cabinet 1, a first fixed rod 408 is fixedly connected with the upper surface of the photovoltaic grid-connected cabinet 1, the upper end of the first fixed rod 408 is rotatably connected with a first straight gear 409, the first straight gear 409 is positioned between the two first sliding rods 406 and is meshed with the rack of the first sliding rod 406, an electric push rod 410 is arranged on the front portion of the upper surface of the photovoltaic grid-connected cabinet 1, the power end of the electric push rod 410 is fixedly connected with the left end face of the first sliding rod 406 on the front side, a second temperature sensing controller 411 is arranged on the front portion of the upper surface of the photovoltaic grid-connected cabinet 1, and the second temperature sensing controller 411 is electrically connected with the electric push rod 410.
When the ventilation component 4 is in a closed state, the ventilation housing 401 and the sealing cover 402 are in a closed state by matching with the dust screen 403, the ventilation slot arranged obliquely downwards better prevents dust from entering, when the external temperature is low enough, the second temperature sensing controller 411 senses the temperature and controls the electric push rod 410 to start, the electric push rod 410 pulls the first slide bar 406 at the front side forwards to slide along the first limit block 407, the first slide bar 406 at the front side drives the first straight gear 409 to rotate, the first straight gear 409 drives the first slide bar 406 at the rear side to move backwards, the first slide bar 406 pushes the first rotary bar 405 to rotate towards the vertical direction, the first rotary bar 405 lifts the sealing cover 402, the sealing cover 402 drives the bellows cover 202 to open upwards, the second temperature sensing controller 411 controls the electric push bar 410 to close, so that the opening of the ventilation component 4 and the working state switching of the air cooling circulation mechanism 2 are completed, when the external temperature is not high enough to cool the photovoltaic grid-connected cabinet 1, the second temperature sensing controller 411 senses the temperature and controls the electric push rod 410 to restart, and the electric push rod 410 pushes the first sliding rod 406 backwards, so that the cover 402 and the wind box cover 202 are closed downwards.
As shown in fig. 1, 11 and 12, the heat preservation component 5 includes a plurality of trapezoidal heat preservation strips 501, a second fixing rod 502, a second fixing block 503, a second rotating rod 504, a second sliding rod 505, a second spur gear 506, a second limiting block 507, a limiting sliding block 508 and a limiting fixing block 509, the trapezoidal heat preservation strips 501 are disposed around the photovoltaic grid-connected cabinet 1, the inclined planes between two adjacent trapezoidal heat preservation strips 501 are tightly matched with each other, the wide bottom surface of the trapezoid is fixedly connected with the adjacent trapezoidal heat preservation strips 501 of the photovoltaic grid-connected cabinet 1 and the three peripheral outer walls of the trapezoidal heat preservation strips, the trapezoidal heat preservation strips 501 are disposed such that the adjacent trapezoidal heat preservation strips have a larger contact area, and are more easily matched with each other compared with the square heat preservation strips in the motion process, external wind, dust and the like are also difficult to enter the photovoltaic grid-connected cabinet 1 after the inclined planes of the trapezoid are matched, so that the heat preservation boards formed by the trapezoidal heat preservation strips 501 can better realize sealing and heat preservation effects, the upper end and the lower end of the rest trapezoidal heat preservation strips 501 on the outer wall of the photovoltaic grid-connected cabinet 1 are respectively fixedly connected with eight second fixing rods 502, the number of the second fixing rods 502 is vertically and symmetrically arranged, the trapezoidal heat preservation strips 501 at the cabinet door of the photovoltaic grid-connected cabinet 1 are fixedly connected with the second fixing rods 502 at the upper end and the lower end, each second fixing rod 502 at the upper side of the photovoltaic grid-connected cabinet 1 is respectively and fixedly connected with a second fixing block 503, the second fixing blocks 503 are symmetrically arranged, the second fixing blocks 503 are respectively positioned at the lower right corner and the upper left corner of the photovoltaic grid-connected cabinet 1, each second fixing block 503 is respectively hinged with a second rotating rod 504, the other ends of two adjacent second rotating rods 504 are respectively and cooperatively hinged with a second sliding rod 505, a rack is arranged at the inner side end of the second sliding rod 505, a second straight gear 506 is arranged between the two second sliding rods 505, the second straight gear 506 is rotatably connected with the first fixing rod 408, and the second straight gear 506 is meshed with the rack of the second sliding rod 505, two sides of each second sliding rod 505 are provided with a second limiting block 507, the second limiting blocks 507 are fixedly connected with the upper surface of the photovoltaic grid-connected cabinet 1, the second sliding rods 505 are slidably connected with the second limiting blocks 507, one limiting sliding block 508 and one limiting fixing block 509 form a group, each second fixing rod 502 is fixedly connected with two limiting sliding blocks 508, the limiting fixing blocks 509 are fixedly connected in the upper surface of the photovoltaic grid-connected cabinet 1 and the interlayer placing grooves, and the limiting sliding blocks 508 are slidably connected with the limiting fixing blocks 509.
The heat preservation component 5 is used for reducing the exchange with the external heat, preserving the temperature inside the photovoltaic grid-connected cabinet 1, in the state of internal circulation of a cooling system, the heat preservation component 5 is in a closed state, the heat of the external environment is not exchanged with the internal, so that the internal of the photovoltaic grid-connected cabinet 1 is always at a proper working temperature, when the external temperature is low enough, under the driving of the ventilation component 4, the second straight gear 506 drives the second sliding rod 505 to slide along the second limiting block 507, the second rotating rod 504 starts to push the second fixing rod 502 under the thrust, the second fixing rod 502 drives the limiting sliding block 508 to move in the limiting fixing block 509, under the limitation of the limiting fixing block 509, the second fixing rod 502 firstly moves to the outside by one end distance and then respectively moves to the upper left and the lower right diagonal angles, so that the two trapezoidal heat preservation strips 501 which are adjacent to the left and the right are originally are arranged in a front-back manner, and the air outlet of the photovoltaic grid-connected cabinet 1, the air in the photovoltaic grid-connected cabinet 1 is discharged under the driving of the external circulation of the air cooling circulation mechanism 2, the trapezoidal heat preservation strips 501 at the door of the photovoltaic grid-connected cabinet 1 all move along with the second fixing rod 502, when the internal circulation state is started, the ventilation component 4 drives the second straight gear 506 to rotate reversely to reset the heat preservation component 5, and the trapezoidal heat preservation strips 501 reset and are arranged again and closely, so that the air is matched with the heat preservation sealing effect of the heat preservation component 5.
Example 3
In addition to the embodiment 2, in the external circulation operation state of the air-cooled circulation mechanism 2, when the external temperature is lower than the temperature of the cooling water in the water circulation mechanism 3, the two water pumps 302 are turned on under the induction control of the first temperature induction controller 308, the water pump 302 at the rear side pumps the cooling water in the first water tank 301 into the second water tank 303 at the left side, the water pump 302 at the front side supplies pressure to the cooling water, so that the cooling water is distributed into the cooling water tank 305 at the left side through the distribution tank 304 at the left side, the cooling water enters the cooling water tank 305 at the right side through the communication pipe 307 at the upper part, and then enters the second water tank 303 at the right side through the distribution tank 304 at the right side, the cooling water in the second water tank 303 at the right side returns to the first water tank 301, and the cooling air entering the ventilation pipes 206 at both sides in the air-cooled circulation mechanism 2 is cooled by the operation of the water circulation mechanism 3, with the cooling effect with higher speed that realizes the cooling water to supply next time inner loop state to realize better cooling effect, when outside sand blown by the wind is very abominable condition, ventilation part 4 and heat preservation part 5 just can not be opened to the system, make photovoltaic grid-connected cabinet 1 be in the encapsulated situation all the time, through the cooperation of forced air cooling circulation mechanism 2 and hydrologic cycle mechanism 3, make this device be in the operating condition of inner loop cooling all the time, can protect inside components and parts, can realize photovoltaic grid-connected cabinet 1 again from the cooling effect.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (8)
1. A self-cooling type photovoltaic grid-connected cabinet comprises a photovoltaic grid-connected cabinet (1), and is characterized by further comprising an air cooling circulation mechanism (2) and a water circulation mechanism (3), the photovoltaic grid-connected cabinet is characterized by comprising a ventilation component (4) and a heat preservation component (5), wherein a photovoltaic grid-connected cabinet (1) is placed on the ground through supporting legs, an interlayer is arranged on the lower portion of the photovoltaic grid-connected cabinet (1), air holes are formed in the lower portion of the photovoltaic grid-connected cabinet (1), an air cooling circulation mechanism (2) and a water circulation mechanism (3) are arranged in the photovoltaic grid-connected cabinet (1), the water circulation mechanism (3) is matched with the air cooling circulation mechanism (2), the ventilation component (4) is arranged on the upper portion of the photovoltaic grid-connected cabinet (1), the ventilation component (4) is matched with the air cooling circulation mechanism (2), the heat preservation component (5) is arranged on the periphery and the upper side of the photovoltaic grid-connected cabinet (1), and the heat preservation component (5) is matched with the ventilation component (4);
the air-cooling circulation mechanism (2) comprises an air box shell (201), an air box cover (202), a partition plate (203), an exhaust fan (204), a drying box (205) and a ventilation pipeline (206), wherein the air box shell (201) is fixedly connected to the middle of the upper surface of the photovoltaic grid-connected cabinet (1), the air box cover (202) is slidably connected to the upper right end of the air box shell (201) through a support rod, a baffle plate is fixedly connected between two support rods on the left side of the air box cover (202), the partition plate (203) is arranged in the middle of the air box shell (201), the right side of the partition plate (203) is fixedly connected with the upper right side of the air box shell (201), the right side of the partition plate (203) is tightly contacted with the upper right side of the baffle plate of the air box cover (202), the exhaust fan (204) is fixedly connected to the partition plate (203), the upper portion of the exhaust fan (204) is slidably connected with the air box cover (202), the exhaust fan (204) is positioned in the middle of the air box shell (201), the drying box (205) and the ventilation pipeline (206) are respectively and symmetrically arranged in the left and right directions, the two drying boxes (205) penetrate through and are fixedly connected to the photovoltaic grid-connected cabinet (1) and the air box shell (201) respectively, and the upper surface of the ventilation pipeline (206) is fixedly connected to the lower surface of the drying box (205).
2. The self-cooling photovoltaic grid-connected cabinet according to claim 1, wherein a plurality of ventilation openings (207) are formed in the ventilation duct (206), the length and the width of each ventilation opening (207) are sequentially increased from bottom to top, and the width of the ventilation opening (207) at the uppermost side is the same as the width between the inner sides of the ventilation duct (206).
3. The self-cooling type photovoltaic grid-connected cabinet according to claim 1, wherein the water circulation mechanism (3) comprises a first water tank (301), two water pumps (302), a second water tank (303), a distribution box (304), two cooling water tanks (305), a cooling orifice plate (306), a communication pipeline (307) and a first temperature sensing controller (308), the first water tank (301) is arranged at a position 5m below the ground, the two water pumps (302) are respectively arranged in the middle of a lower interlayer of the photovoltaic grid-connected cabinet (1) in a front-back symmetrical manner, the second water tank (303) and the distribution box (304) are respectively fixedly connected in the lower interlayer of the photovoltaic grid-connected cabinet (1) in a left-right symmetrical manner, the second water tank (303) and the distribution box (304) are communicated, the water pump (302) at the front side is respectively communicated with the two second water tanks (303) through a pipeline, the water pump (302) at the rear side is communicated with the first water tank (301) and the second water tank (303) at the left side through a pipeline, the second water tank (303) on the right side is communicated with the first water tank (301) through a pipeline, two cooling water tanks (305) are arranged, the two cooling water tanks (305) are respectively and fixedly connected to the inner sides of the two ventilating pipelines (206), the insides of the cooling water tanks (305) are arranged in a cavity mode, the cooling water tanks (305) are communicated with the distribution box (304), a plurality of groups of cooling pore plates (306) are arranged on the outer side of each cooling water tank (305), the two cooling pore plates (306) are arranged in one group, the insides of the cooling pore plates (306) are arranged in a cavity mode, the cooling pore plates (306) on the two sides are respectively communicated with the cooling water tanks (305) on the two sides, a plurality of communicating pipelines (307) are arranged between the upper ends of the two cooling water tanks (305), the first temperature induction controller (308) is fixedly connected in a lower interlayer of the photovoltaic grid-connected cabinet (1), and the water pump (302) is electrically connected with the first temperature induction controller (308), the first temperature sensing controller (308) is used for detecting the temperature of water in the second water tank (303).
4. The self-cooling photovoltaic grid-connected cabinet as claimed in claim 3, wherein a partition is arranged in the first water tank (301), the partition divides the interior of the first water tank (301) into a central position and an adherence position, the central position and the adherence position of the first water tank (301) are communicated at the lower end thereof, the central position of the first water tank (301) and the left second water tank (303) are communicated through a pipeline for water supply, and the adherence position of the first water tank (301) and the right second water tank (303) are communicated through a pipeline for cooling water to return downwards.
5. The self-cooling photovoltaic grid-connected cabinet according to claim 4, characterized in that the inside of the cooling water tank (305) is provided with a plurality of parallel cooling plates, the parallel cooling plates of the cooling water tank (305) are used for increasing the contact area of air and the air, and are also used for being matched with the ventilation opening (207) to ventilate into the photovoltaic grid-connected cabinet (1), and the through holes of the two cooling hole plates (306) in one group are arranged in a staggered manner.
6. The self-cooling photovoltaic grid-connected cabinet according to claim 1, wherein the ventilation component (4) comprises a ventilation housing (401), a sealing cover (402), a dust screen (403), a first fixed block (404), a first rotating rod (405), a first sliding rod (406), a first limit block (407), a first fixed rod (408), a first straight gear (409), an electric push rod (410) and a second temperature sensing controller (411), the ventilation housing (401) is fixedly connected to the upper surface of the photovoltaic grid-connected cabinet (1), the sealing cover (402) is slidably connected to the ventilation housing (401), the sealing cover (402) is provided with two connecting blocks, the connecting blocks of the sealing cover (402) are fixedly connected to the upper surface of the wind box cover (202), the dust screen (403) is provided with two, the two dust screens (403) are respectively arranged between the ventilation housing (401) and the sealing cover (402), the dust screen (403) is fixedly connected to the ventilation housing (401), two first fixed blocks (404) are arranged, the two first fixed blocks (404) are respectively and fixedly connected to the lower surface of the sealing cover (402), each first fixed block (404) is respectively hinged with a first rotating rod (405), the lower end of each first rotating rod (405) is hinged with a first sliding rod (406), a rack is fixedly connected to the inner side of each first sliding rod (406), the two first limiting blocks (407) form a group, the two first limiting blocks (407) are respectively arranged on the front side and the rear side of each first sliding rod (406), the first limiting blocks (407) are fixedly connected with the upper surface of the photovoltaic grid-connected cabinet (1), a first fixed rod (408) is fixedly connected to the upper surface of the photovoltaic grid-connected cabinet (1), a first straight gear (409) is rotatably connected to the upper end of each first fixed rod (408), the first straight gear (409) is positioned between the two first sliding rods (406) and is meshed with the rack of each first sliding rod (406), and an electric push rod (410) is arranged at the front part of the upper surface of the photovoltaic grid-connected cabinet (1), the power end of the electric push rod (410) is fixedly connected with the left end face of the first sliding rod (406) on the front side, the second temperature sensing controller (411) is arranged on the front portion of the upper surface of the photovoltaic grid-connected cabinet (1), and the second temperature sensing controller (411) is electrically connected with the electric push rod (410).
7. The self-cooling photovoltaic grid-connected cabinet according to claim 6, wherein ventilation grooves are formed in the front side surface and the rear side surface of the ventilation housing (401), ventilation grooves are formed in the front side surface and the rear side surface of the sealing cover (402), the ventilation grooves are obliquely arranged from inside to outside, the ventilation grooves of the ventilation housing (401) and the sealing cover (402) are in a staggered closed state when the ventilation grooves are not lifted up, the ventilation grooves are used for dust prevention and sealing of the environment in the ventilation housing (401), and when the sealing cover (402) is lifted up, the ventilation grooves of the ventilation housing (401) and the sealing cover (402) are communicated with the outside air.
8. The self-cooling photovoltaic grid-connected cabinet as claimed in claim 1, wherein the thermal insulation component (5) comprises trapezoidal thermal insulation strips (501), second fixing rods (502), second fixing blocks (503), second rotating rods (504), second sliding rods (505), second spur gears (506), second limiting blocks (507), limiting sliding blocks (508) and limiting fixing blocks (509), a plurality of trapezoidal thermal insulation strips (501) are arranged on the periphery of the photovoltaic grid-connected cabinet (1), inclined planes between two adjacent trapezoidal thermal insulation strips (501) are tightly matched with each other, the wide bottom surfaces of the trapezoids are fixedly connected with three outer walls around the trapezoidal thermal insulation strips (501) adjacent to the photovoltaic grid-connected cabinet (1), the upper ends and the lower ends of the rest trapezoidal thermal insulation strips (501) on the outer wall of the photovoltaic grid-connected cabinet (1) are respectively fixedly connected with the second fixing rods (502), eight second fixing rods (502) are symmetrically arranged up and down, trapezoidal heat-insulating strips (501) at the position of a cabinet door of the photovoltaic grid-connected cabinet (1) are fixedly connected with the second fixing rods (502) at the upper end and the lower end of the trapezoidal heat-insulating strips, a second fixing block (503) is fixedly connected to each second fixing rod (502) at the upper side of the photovoltaic grid-connected cabinet (1), the second fixing blocks (503) are symmetrically arranged, the second fixing blocks (503) are respectively positioned at the lower right corner and the upper left corner of the photovoltaic grid-connected cabinet (1), each second fixing block (503) is respectively hinged with a second rotating rod (504), the other ends of two adjacent second rotating rods (504) are matched and hinged with a second sliding rod (505), a rack is arranged at the inner side end of each second sliding rod (505), a second straight gear (506) is arranged between the two second sliding rods (505), the second straight gear (506) is rotatably connected with the first fixing rod (408), and the second straight gear (506) is meshed with the racks of the second sliding rods (505), two sides of each second sliding rod (505) are respectively provided with a second limiting block (507), the second limiting blocks (507) are fixedly connected with the upper surface of the photovoltaic grid-connected cabinet (1), the second sliding rods (505) are slidably connected with the second limiting blocks (507), one limiting sliding block (508) and one limiting fixing block (509) form a group, two limiting sliding blocks (508) are fixedly connected on each second fixing rod (502) respectively, the limiting fixing blocks (509) are fixedly connected on the upper surface of the photovoltaic grid-connected cabinet (1) and in the interlayer placing groove, and the limiting sliding blocks (508) are slidably connected with the limiting fixing blocks (509).
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Cited By (1)
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|---|---|---|---|---|
| CN116759928A (en) * | 2023-08-18 | 2023-09-15 | 凯钟电气集团有限公司 | Box-type substation |
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| CN113964685B (en) | 2022-03-01 |
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Inventor after: Li Youjun Inventor after: Wang Song Inventor after: Zhu Yong Inventor after: Sun Tongtong Inventor after: Yang Dongliang Inventor before: Li Youjun Inventor before: Qiao Jianhua Inventor before: Wang Song Inventor before: Zhu Yong Inventor before: Sun Tongtong Inventor before: Yang Dongliang |