CN115898233A - Inflatable photovoltaic sun-shading device and control method - Google Patents
Inflatable photovoltaic sun-shading device and control method Download PDFInfo
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- CN115898233A CN115898233A CN202211625767.4A CN202211625767A CN115898233A CN 115898233 A CN115898233 A CN 115898233A CN 202211625767 A CN202211625767 A CN 202211625767A CN 115898233 A CN115898233 A CN 115898233A
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- 239000010409 thin film Substances 0.000 claims abstract description 48
- 230000005855 radiation Effects 0.000 claims abstract description 27
- 239000011521 glass Substances 0.000 description 19
- 238000010248 power generation Methods 0.000 description 6
- 238000005265 energy consumption Methods 0.000 description 5
- 238000004378 air conditioning Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000010408 film Substances 0.000 description 3
- 238000005286 illumination Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000000007 visual effect Effects 0.000 description 3
- 230000005611 electricity Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 229920000840 ethylene tetrafluoroethylene copolymer Polymers 0.000 description 2
- 230000003203 everyday effect Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 229910021417 amorphous silicon Inorganic materials 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- HVMJUDPAXRRVQO-UHFFFAOYSA-N copper indium Chemical compound [Cu].[In] HVMJUDPAXRRVQO-UHFFFAOYSA-N 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 229910052733 gallium Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
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- 239000000565 sealant Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/10—Photovoltaic [PV]
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Abstract
The invention particularly discloses an inflatable photovoltaic sun-shading device and a sun-shading method, the inflatable photovoltaic sun-shading device comprises an air bag assembly, a thin film photovoltaic cell, a driving assembly and an air supply component, the air bag assembly is suitable for being connected with an outer wall of a building, the air bag assembly can be stretched and folded along the height direction of the outer wall of the building, the thin film photovoltaic cell is connected with the air bag assembly and is positioned on one side, away from the outer wall of the building, of the air bag assembly, the thin film photovoltaic cell is suitable for generating electric energy by utilizing external solar radiation, the driving assembly is connected with the air bag assembly to drive the air bag assembly to stretch and contract, and the air supply component is connected with the air bag assembly to inflate and deflate the air bag assembly. The inflatable photovoltaic sun-shading device can utilize solar radiation of the outer facade of the building and reduce the influence of the sun-shading device on the appearance of the building.
Description
Technical Field
The invention relates to the technical field of building curtain walls, in particular to an inflatable photovoltaic sun-shading device.
Background
In the energy consumption of building operation, the energy consumption of an air conditioning system occupies most proportion, and is particularly obvious for glass curtain wall buildings. For glass curtain wall buildings, the solar heat getting through the glass into the room is an important reason causing indoor load, so the indoor radiation heat getting can be reduced and the energy consumption of the building air conditioning system can be reduced by using a sun-shading means, particularly external sun-shading. The external sunshade structure in the related art reflects solar radiation to reduce the solar radiation entering the room, thereby achieving the effect of reducing energy consumption, however, the sunshade structure in the related art does not utilize the solar radiation, and in addition, the unity of the sunshade device and the building appearance is not considered, thereby destroying the original building aesthetics of the building.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art. Therefore, the embodiment of the invention provides an inflatable photovoltaic sunshade device, which can utilize solar radiation of the facade of a building and reduce the influence of the sunshade device on the appearance of the building.
The embodiment of the invention also provides an inflatable photovoltaic sunshade control method.
The inflatable photovoltaic solar protection device of the embodiment of the invention comprises: an airbag module adapted to be attached to an exterior wall of a building, the airbag module being expandable and foldable in a height direction of the exterior wall of the building; the thin film photovoltaic cell is connected with the air bag assembly and is positioned on one side of the air bag assembly, which is far away from the building outer wall, and the thin film photovoltaic cell is suitable for generating electric energy by utilizing external solar radiation; the driving assembly is connected with the air bag assembly to drive the air bag assembly to extend and contract; and the air supply part is connected with the air bag assembly to inflate and deflate the air bag assembly.
The inflatable photovoltaic sun-shading device provided by the embodiment of the invention can utilize solar radiation of the outer facade of the building and reduce the influence of the sun-shading device on the appearance of the building.
In some embodiments, the airbag module comprises a plurality of airbags which are connected in sequence and communicated with each other, the airbags are arranged at intervals along the height direction of the building outer wall, and one side end face of the airbag, which is adjacent to the building outer wall, is attached to the building outer wall.
In some embodiments, the airbag assembly further comprises an air pressure sensor disposed within the airbag interior to monitor air pressure within the airbag interior.
In some embodiments, the thin-film photovoltaic cell is connected with the airbag, and the thin-film photovoltaic cell is positioned on one side end face of the airbag far away from the building outer wall, and the projection area of the thin-film photovoltaic cell is smaller than that of the airbag on a projection plane parallel to the building outer wall.
In some embodiments, the drive assembly includes a guide rail, a first cross bar, and a second cross bar, the guide rail and the frame
Build the outer wall and link to each other, just the guide rail is followed the direction of height of building the outer wall extends, first horizontal pole is established the top of 5 parts of gasbag group is in order to support gasbag subassembly, the second horizontal pole is established the bottom of gasbag subassembly, the second horizontal pole is followed
The length direction of gasbag extends, the second horizontal pole card is established in the guide rail, just the second horizontal pole is in but the second horizontal pole is in the guide rail is portable.
In some embodiments, the drive assembly includes a driver, a gear, and a rack, the rack being coupled to the rail,
and the rack extends along the height direction of the building outer wall, the gear is connected with the second cross rod, the gear 0 is meshed with the rack, and the driver is connected with the gear to drive the gear to rotate.
In some embodiments, the driving assembly includes a driver, a screw rod and a slider, the screw rod is connected to the guide rail, the screw rod extends along the height direction of the building outer wall, the screw rod is rotatable relative to the guide rail, the slider is connected to the second cross rod, the slider is sleeved on the screw rod, the slider is movable on the screw rod, and the driver is connected to the screw rod to drive the screw rod to rotate.
5 in some embodiments, the drive assembly further comprises a first stop and a second stop, the first stop and the second stop
The second limiting devices are respectively connected with the guide rails, the first limiting devices and the second limiting devices are arranged at intervals in the height direction of the building outer wall, and the second cross rod is located between the first limiting devices and the second limiting devices.
In some embodiments, the gas supply assembly includes an air pump coupled to a pneumatic valve coupled to the airbag assembly.
In some embodiments, the first cross rod penetrates through the air bag along the length direction of the air bag, an air outlet is formed in the outer surface of the first cross rod, one end of the air outlet is communicated with the inside of the air bag, and the other end of the air outlet is communicated with the pneumatic valve.
The inflatable photovoltaic sunshade control method provided by the embodiment of the invention comprises the following steps: the deployment area of the airbag is controlled according to the surrounding environment of the building, and/or the inclination angle of the thin film photovoltaic cell is controlled according to the surrounding environment of the building.
Drawings
Fig. 1 is a schematic structural view of an inflatable photovoltaic sunshade device according to an embodiment of the present invention.
FIG. 2 is a side view of the inflatable photovoltaic solar protection device shown in FIG. 1.
Fig. 3 is a schematic structural view of an inflatable photovoltaic sunshade device according to another embodiment of the present invention.
FIG. 4 is a schematic structural view of an inflatable photovoltaic sunshade device according to an embodiment of the present invention, with the airbag module in a deployed state.
FIG. 5 is a schematic structural view of an inflatable photovoltaic sunshade device according to an embodiment of the present invention, with the airbag module in a deployed state.
Fig. 6 is a schematic structural diagram of a first cross bar according to an embodiment of the present invention.
Reference numerals are as follows:
the air bag module 1, the air bag 11, the air pressure sensor 12,
the thin-film photovoltaic cell 2 is provided with,
the driving component 3, the guide rail 31, the first cross bar 32, the air outlet 321, the second cross bar 33, the driver 34, the gear 35, the rack 36, the screw rod 37, the slide block 38,
the air supply section 4, the air pump 41, the air-operated valve 42,
a glass curtain wall 5.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
As shown in fig. 1 to 5, the inflatable photovoltaic sunshade device according to the embodiment of the present invention includes an airbag module 1, a thin-film photovoltaic cell 2, a driving module 3, and a gas supply member 4, where the airbag module 1 is adapted to be connected to an exterior wall of a building, the airbag module 1 is extendable and foldable along a height direction (an up-down direction shown in fig. 1) of the exterior wall of the building, the thin-film photovoltaic cell 2 is connected to the airbag module 1, the thin-film photovoltaic cell 2 is located on a side of the airbag module 1 away from the exterior wall of the building, the thin-film photovoltaic cell 2 is adapted to generate electric energy by external solar radiation, the driving module 3 is connected to the airbag module 1 to drive the airbag module 1 to extend and contract, and the gas supply member 4 is connected to the airbag module 1 to inflate and deflate the airbag module 1.
Specifically, as shown in fig. 1, the airbag module 1 is located outside the glass curtain wall 5, the thin-film photovoltaic cell 2 is located outside the airbag module 1, and for example, the thin-film photovoltaic cell 2 is adhered to the airbag module 1. The airbag module 1 is expandable or foldable in the up-down direction, and the airbag module 1 is expandable or contractible. The driving part is installed on the glass curtain wall 5, the driving part is connected with the air bag component 1, the driving part can drive the air bag component 1 to be folded or unfolded in the up-down direction, and the air outlet end of the air supply part 4 is connected with the air bag component 1 to drive the air bag component 1 to expand or contract.
For example, the thickness of the airbag 11 after folding is 6 to 8 cm, thereby reducing the influence of the sunshade on the building appearance.
According to the inflatable photovoltaic sunshade device provided by the embodiment of the invention, the airbag component 1 is arranged outside the glass curtain wall 5, and the thin film photovoltaic cell 2 is arranged outside the airbag component 1, so that electric energy can be generated by utilizing solar radiation of an outer facade of a building, photovoltaic power generation is effectively utilized, the solar radiation entering a room can be reduced, the energy consumption of an air conditioning system of the building is reduced, the airbag component 1 is controlled to extend or fold according to the climate and illumination condition of the place where the building is located, the sunshade area is flexibly adjusted, and the influence of the sunshade device on the appearance of the building can be reduced.
In some embodiments, the airbag module 1 includes a plurality of airbags 11 connected in sequence and communicating with each other, the airbags 11 are arranged at intervals along the height direction of the building outer wall, and one side end surface of the airbag 11 adjacent to the building outer wall is attached to the building outer wall.
Specifically, as shown in fig. 2, the number of the air bags 11 is eight, the eight air bags 11 are sequentially connected in the vertical direction, the eight air bags 11 are communicated with each other, the inner side surfaces of the air bags 11 are attached to the outer wall surface of the glass curtain wall 5, and the wind pressure resistance and the tear resistance of the air bags 11 are improved, for example, the air bags 11 are transparent air bags 11, and the outer side surfaces of the air bags 11 are arc-shaped surfaces, so that sunlight irradiated on the air bags 11 can be diffusely reflected, and light pollution is reduced. The thin film photovoltaic cell 2 is positioned at the upper end of the outer side surface of the airbag 11, so that the thin film photovoltaic cell 2 can better receive sunlight to generate electric energy.
As shown in fig. 4, after the airbag module 1 is deployed, the coverage area of the plurality of airbags 11 is larger than or equal to the area of the glass curtain wall 5, so that the sunshade effect can be better achieved.
For example, the material of the airbag 11 may be an ETFE film (ethylene-tetrafluoroethylene copolymer) having high light transmittance, good ductility, high mechanical toughness, heat resistance, corrosion resistance, and resistance to dust adhering to the surface.
According to the inflatable photovoltaic sun-shading device provided by the embodiment of the invention, the airbag assembly 1 can be folded and unfolded by arranging the airbags 11, the size of the airbag assembly is reduced after the airbags 11 are folded, and the sun-shading device is prevented from influencing the appearance of a building.
In some embodiments, the airbag module 1 further comprises an air pressure sensor 12, the air pressure sensor 12 being provided inside the airbag 11 to monitor the air pressure inside the airbag 11.
Specifically, as shown in fig. 2, the air pressure sensor 12 is located inside the airbag module 1, the air pressure sensor 12 is connected to a controller (not shown), the air pressure sensor 12 transmits the monitored air pressure data inside the airbag 11 to the controller, and the controller is connected to the air supply unit 4 to adjust the air pressure inside the airbag 11 according to the air pressure data inside the airbag 11.
It should be noted that the degree of expansion of the airbag 11 can be adjusted by adjusting the air pressure inside the airbag 11, so as to adjust the angle of the outer side surface of the airbag 11, and further adjust the angle of the thin-film photovoltaic cell 2, thereby ensuring that the thin-film photovoltaic cell 2 can sufficiently receive sunlight.
In some embodiments, the thin-film photovoltaic cell 2 is connected to the airbag 11, and the thin-film photovoltaic cell 2 is located at an end face of the airbag 11 far from the building outer wall, and a projected area of the thin-film photovoltaic cell 2 is smaller than a projected area of the airbag 11 on a projected plane parallel to the building outer wall.
Specifically, as shown in fig. 1 and fig. 2, the thin film photovoltaic cell 2 is located on the upper side of the outer side of the airbag 11 or the thin film photovoltaic cell 2 is located on the lower side of the outer side of the airbag 11, in other words, the area of the outer side of the airbag 11 occupied by the thin film photovoltaic cell 2 is one third to one half of the area of the outer side of the airbag 11, so that the thin film photovoltaic cell 2 can be ensured to generate electric energy by using sunlight, and part of light can enter the room, thereby improving the lighting of the indoor space.
For example, the thin film photovoltaic cell 2 may be a thin film photovoltaic cell 2, for example, the thin film photovoltaic cell 2 may be any one of a copper indium gallium selenide cell, a perovskite cell, an organic dye cell, and an amorphous silicon cell, and the thin film photovoltaic cell 2 is adopted, so that the thin film photovoltaic cell 2 can be better attached to the outer side surface of the airbag 11, and the thin film photovoltaic cell 2 is prevented from obstructing the folding and unfolding of the airbag 11.
In some embodiments, the driving assembly 3 includes a guide rail 31, a first rail 32, and a second rail 33, the guide rail 31 is connected to an outer wall of a building, and the guide rail 31 extends in a height direction of the outer wall of the building, the first rail 32 is provided at a top of the airbag module 1 to support the airbag module 1, the second rail 33 is provided at a bottom of the airbag module 1, the second rail 33 extends in a length direction of the airbag 11, the second rail 33 is caught in the guide rail 31, and the second rail 33 is movable in the guide rail 31.
Specifically, as shown in fig. 1 and 2, the number of the guide rails 31 is two, two guide rails 31 are respectively arranged oppositely in the left-right direction, and the two guide rails 31 are arranged in parallel, the two guide rails 31 have the same size, and a guide groove is provided in the guide rail 31. The first cross bar 32 and the second cross bar 33 are arranged at intervals in the up-down direction, the first cross bar 32 is connected with one of the air bags 11 positioned at the top among the plurality of air bags 11 to fix the upper end of the air bag module 1, the second cross bar 33 is connected with one of the air bags 11 positioned at the bottom among the plurality of air bags 11, the left end and the right end of the second cross bar 33 are respectively clamped in guide grooves in the guide rails 31 at the left side and the right side, and the second cross bar 33 can move up and down in the guide rails 31 to be close to and far away from the first cross bar 32, so that the plurality of air bags 11 are folded or unfolded.
According to the inflatable photovoltaic sunshade device provided by the embodiment of the invention, the upper end of the air bag assembly 1 can be fixed by arranging the first cross bar 32, so that the air bag assembly 1 is prevented from being separated from the glass curtain wall 5 when being folded or unfolded, the inner side surface of the air bag 11 can be ensured to be always attached to the outer side surface of the glass curtain wall 5 by the second cross bar 33, and the moving precision of the second cross bar 33 can be improved by arranging the guide rail 31, so that the folding and unfolding precision of the air bag assembly 1 is ensured, the sunshade effect is ensured, and the power generation efficiency of the thin-film photovoltaic cell 2 can be ensured.
In some embodiments, the driving assembly 3 includes a driver 34, a gear 35 and a rack 36, the rack 36 is connected to the guide rail 31, the rack 36 extends along the height direction of the building outer wall, the gear 35 is connected to the second cross bar 33, the gear 35 is engaged with the rack 36, and the driver 34 is connected to the gear 35 to rotate the gear 35.
Specifically, as shown in fig. 2, the number of the gears 35 is two, two gears 35 are respectively installed on the left and right sides of the second cross bar 33, the number of the racks 36 is the same as that of the gears 35, the racks 36 are respectively installed on the guide rails 31 on the left and right sides, the gears 35 on the left and right sides are respectively engaged with the racks 36 on the left and right sides, the driver 34 is installed on the second cross bar 33, and the driver 34 drives the gears 35 to rotate, so as to drive the second cross bar 33 to move up and down.
In some embodiments, the driving assembly 3 includes a driver 34, a screw 37 and a slider 38, the screw 37 is connected to the guide rail 31, the screw extends along the height direction of the building outer wall and is rotatable relative to the guide rail 31, the slider 38 is connected to the second cross bar 33, the slider 38 is sleeved on the screw, the slider 38 is movable on the screw, and the driver 34 is connected to the screw to drive the screw 37 to rotate.
Specifically, as shown in fig. 3, the number of the lead screws is two, two lead screws are respectively installed on the guide rails 31 on the left and right sides, the number of the sliding blocks 38 is two, two sliding blocks 38 are respectively connected with the left and right sides of the second cross bar 33, the sliding blocks 38 are sleeved on the lead screws, the driver 34 is installed on the glass curtain wall 5, the output shaft of the driver 34 is connected with the lead screws, the driver 34 drives the lead screws to rotate, and the lead screws rotate to drive the sliding blocks 38 to move in the up-down direction, so as to drive the second cross bar 33 to move in the up-down direction.
Optionally, a pulling rope is disposed on the first cross bar 32, one end of the pulling rope is connected to the first cross bar 32, the other end of the pulling rope is connected to the second cross bar 33, and the second cross bar 33 can be maintained at a certain height by the pulling rope, so that the deployment area of the airbag 11 can be flexibly adjusted.
In some embodiments, the driving assembly 3 further includes a first stopper (not shown) and a second stopper (not shown), the first stopper and the second stopper are respectively connected to the guide rail 31, the first stopper and the second stopper are spaced apart in a height direction of the building outer wall, and the second cross bar 33 is located between the first stopper and the second stopper.
For example, the first and second stoppers are spaced in the up-down direction, the second cross bar 33 is located at the first and second stoppers, and by providing the first and second stoppers, the gear 35 or the slider 38 is prevented from being separated from the guide rail 31, thereby improving the stability and safety of the movement of the second cross bar 33.
In some embodiments, the air supply assembly includes an air pump 41 and a pneumatic valve 42, the air pump 41 is connected to the pneumatic valve 42, and the pneumatic valve 42 is connected to the airbag assembly 1.
Specifically, as shown in fig. 1, an air pump 41 is installed inside a building or installed on the glass curtain wall 5, an outlet of the air pump 41 communicates with an inlet of an air-operated valve 42, the air-operated valve 42 has a first outlet communicating with the outside and a second outlet communicating with the inside of the airbag 11 through a hose, and for example, the air-operated valve 42 is an electromagnetic air-operated valve 42, and the inlet, the first outlet and the second outlet can be selectively opened or closed. For example, when it is necessary to supply air to the inside of the airbag 11, the inlet and the second outlet of the air-operated valve 42 are communicated and the first outlet is closed, the air generated by the air pump 41 enters the airbag 11 to inflate the airbag 11, and the airbag 11 is inflated. When it is necessary to deflate the airbag 11, the inlet of the air-operated valve 42 is closed, and the second outlet and the first outlet are opened, the gas inside the airbag 11 is exhausted, and the airbag 11 is deflated.
Alternatively, the air pump 41 and the air-operated valve 42 are communicated with a controller, and the controller controls the opening of the air pump 41 and the opening and closing of the inlet and outlet of the air-operated valve 42 according to air pressure data inside the airbag 11.
For example, the inflation rate of the air pump 41 is 20 to 30L/min, which ensures that the inflation of the air bag 11 is completed within 2 minutes, and the natural deflation rate of the air-operated valve 42 is 5 to 10L/min, which allows the deflation of the air bag 11 within 10 minutes.
According to the inflatable photovoltaic sunshade device provided by the embodiment of the invention, the automation degree of inflation and exhaust of the airbag 11 can be improved by arranging the air pump 41 and the air valve 42.
In some embodiments, the first rail 32 penetrates the airbag 11 in a length direction of the airbag 11, and an outer surface of the first rail 32 is provided with an air outlet 321, one end of the air outlet 321 is communicated with the inside of the airbag 11, and the other end of the air outlet 321 is communicated with the air-operated valve 42.
Specifically, as shown in fig. 6, the inside of the first cross rod 32 is hollow, and one end of the first cross rod 32 is communicated with the first outlet of the pneumatic valve 42 through a hose, the first cross rod 32 is arranged in the air bag 11 in a penetrating manner along the left-right direction, the joint of the first cross rod 32 and the air bag 11 is connected in a sealing manner through a sealant or a sealing ring, so that air leakage of the air bag 11 is avoided, and the first cross rod 32 is provided with a plurality of air outlets 321, so that the inflation and exhaust efficiency is improved.
In some embodiments, the inflatable photovoltaic sunshade device further comprises a wind speed sensor, a radiation sensor and a temperature sensor, wherein the wind speed sensor, the radiation sensor and the temperature sensor are installed outside the building or on the top of the building, the wind speed sensor, the radiation sensor and the temperature sensor are respectively connected with the controller, the wind speed sensor, the radiation sensor and the temperature sensor respectively collect wind speed, illumination data and temperature data around the building and transmit the wind speed, illumination and temperature data to the controller, and the controller controls the airbag 11 to unfold or fold according to the data and controls the unfolding area of the airbag 11 and the expansion condition of the airbag 11. Thereby improving the intelligence of the control of the airbag module 1.
The operation of the inflatable photovoltaic sunshade according to the embodiment of the present invention will be described with reference to fig. 1 to 6.
In the initial state, the airbag module 1 is in the folding device, as shown in fig. 4, when the airbag module 1 needs to be unfolded, the controller controls the driver 34 to rotate, the driver 34 drives the second cross bar 33 to move downwards through the gear 35 or the sliding block 38, and the first cross bar 33 moves downwards
The two cross rods 33 drive the airbag module 1 to unfold for shading, the controller controls the air pump 41 to be started, the air pump 41 supplies air to the inner part 5 of the airbag 11 to expand the airbag 11, the air pressure sensor 12 monitors the internal pressure of the airbag 11, and after the preset air pressure is reached, the controller controls the air pump to supply air to the inner part 5 of the airbag 11 to control the expansion of the airbag 11
The controller controls the air pump 41 to stop supplying air, the thin film photovoltaic cell 2 generates electric energy by using sunlight, when the sun is not needed to be shaded, the controller controls the pneumatic valve 42 to discharge the air in the air bag 11, and controls the gear 35 or the slide block 38 to drive the second cross rod 33 to move upwards, so that the air bag 11 is folded to an initial state.
The inflatable photovoltaic sunshade control method provided by the embodiment of the invention comprises the following steps: the deployment area of the airbag 11 is controlled 0 according to the building surroundings, and/or the tilt angle of the thin film photovoltaic cell 2 is controlled according to the building surroundings.
For example, environmental parameters such as wind speed, wind direction, temperature and solar radiation intensity around a building are monitored in real time through a weather monitoring station arranged on a roof, the initial state of the sun shading device is set as retracted, outdoor environmental parameters are updated once per hour, the sun shading device is adjusted once, and the adjustment can be sun shading area adjustment and/or the inclination angle of the thin-film photovoltaic cell 2.
In one example, the adjustment of the sunshade area comprises the steps of folding the sunshade device at 0 hour-7 hours and 20 hours-24 hours every day, and no sunshade power generation requirement exists in the 5 time period, so that the visual field of indoor personnel is not interfered.
And 7 hours to 20 hours every day, adjusting according to specific weather conditions:
the season is summer (6-8 months), the weather is sunny, the outdoor temperature is higher than 30 deg.C, and the direct solar radiation intensity is higher than 300W/m 2 When the sun-shading device is started, the sun-shading device is folded under other conditions;
when the sun shading device is opened, the solar radiation intensity is more than 300W/m 2 Less than 500W/m 2 When the sun shading area 0 is 1/3 of the glass area, namely, the second cross bar 33 is moved to the L/3 distance (wherein L is L)
Length of glass); when the intensity of solar radiation is more than or equal to 500W/m 2 Is less than 700W/m 2 When the sun-shading area is 2/3 of the glass area, namely the bottom cross bar is moved to a distance of 2L/3 by controlling the motor to rotate; when the intensity of solar radiation is more than or equal to 700W/m 2 When the sun shading area is equal to the glass area, namely, the bottom cross rod is controlled to rotate to the L position, and complete sun shading is realized.
In winter (12-2 months), when the solar radiation intensity is more than or equal to 500W/m 2 The sun shading area is 1/3 of the glass area, and the sun shading device mainly has the functions of generating electricity by utilizing solar radiation of a vertical surface, ensuring the indoor visual field and ensuring the indoor visual field
The indoor heat load is reduced; the sun-shading device is folded under other conditions.
The sun shading requirements of other months of the whole year are small, and the main purpose is to utilize building facade radiation to generate electricity and ensure indoor space
Vision and lighting requirements. When the intensity of solar radiation is more than or equal to 500W/m 2 Meanwhile, the sunshade area is 1/2 of the glass area, and under other 0 conditions, the sunshade deviceAll are in a retracted state, and balance of power generation and lighting is realized.
The control method can be automatically completed through a preset program, and relevant meteorological parameters of the sensor are read time by time to realize automatic control. Regarding the sunshade area, since the rotation speed of the driver 34 is fixed, the thread pitch of the screw thread of the screw rod 37 is fixed, and the movement distance of the second cross rod 33 is precisely controlled by controlling the starting time of the driver 34, so that the precise adjustment of the sunshade area is realized.
In one example, the adjustment of the inclination angle of the thin-film photovoltaic cell 2 includes that the thin-film photovoltaic cell 2 is attached to the surface of the inflatable unit, the inclination angle of the thin-film photovoltaic cell 2 and the air pressure of the air bag 11 have a one-to-one correspondence relationship, the dynamic adjustment of the photovoltaic inclination angle is realized by controlling the air pressure in the air bag 11, and under the condition that the sun-shading device is started, a specific control method is as follows:
and calculating a solar azimuth angle and a solar altitude angle according to the orientation of the building facade, the latitude of the location, the current date and time, so as to obtain an included angle between direct solar radiation and the building facade normal, adjust the inclination angle of the thin-film photovoltaic cell 2 and maximize photovoltaic power generation.
The description takes the south vertical face of the building as an example: at noon, the solar azimuth angle is about 180 degrees, the solar altitude h =90 degrees-phi-delta-phi can be calculated according to the current solar direct-radiation point and the latitude of the location, phi is the latitude of the location, delta is the latitude of the solar direct-radiation point, the inclination angle theta = h of the film photovoltaic cell 2 is enabled by adjusting the pressure of the air bag 11, and the direct-radiation of the sun is perpendicular to the film photovoltaic cell 2, so that the photovoltaic power generation is enabled to be maximized.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless explicitly specified otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be interconnected within two elements or in a relationship where two elements interact with each other unless otherwise specifically limited. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the present disclosure, the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" and the like mean that a specific feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (11)
1. An inflatable photovoltaic solar protection device, comprising:
an airbag module adapted to be attached to an exterior wall of a building, the airbag module being expandable and foldable in a height direction of the exterior wall of the building;
the thin film photovoltaic cell is connected with the air bag assembly and is positioned on one side of the air bag assembly, which is far away from the building outer wall, and the thin film photovoltaic cell is suitable for generating electric energy by utilizing external solar radiation;
the driving assembly is connected with the air bag assembly to drive the air bag assembly to extend and contract;
and the air supply part is connected with the air bag assembly to inflate and deflate the air bag assembly.
2. The inflatable photovoltaic solar protection device as claimed in claim 1, wherein the airbag module comprises a plurality of airbags connected in sequence and communicated with each other, the airbags are arranged at intervals along the height direction of the building outer wall, and one side end face of the airbag adjacent to the building outer wall is attached to the building outer wall.
3. The inflatable photovoltaic solar protection device of claim 2, wherein the airbag assembly further comprises an air pressure sensor disposed within the airbag to monitor air pressure within the airbag.
4. The inflatable photovoltaic solar protection device according to claim 2 or 3, wherein the thin-film photovoltaic cell is connected with the airbag, and the thin-film photovoltaic cell is positioned on one side end face of the airbag far away from the building outer wall, and the projection area of the thin-film photovoltaic cell is smaller than that of the airbag on a projection plane parallel to the building outer wall.
5. The inflatable photovoltaic solar protection device of claim 1, wherein the driving assembly comprises a rail, a first cross bar and a second cross bar, the rail is connected to the building outer wall and extends along the height direction of the building outer wall, the first cross bar is arranged at the top of the airbag assembly to support the airbag assembly, the second cross bar is arranged at the bottom of the airbag assembly, the second cross bar extends along the length direction of the airbag, the second cross bar is clamped in the rail, and the second cross bar is movable in the rail.
6. The inflatable photovoltaic solar protection device of claim 5, wherein the driving assembly further comprises a driver, a gear and a rack, the rack is connected to the guide rail and extends along the height direction of the building outer wall, the gear is connected to the second cross bar and is engaged with the rack, and the driver is connected to the gear to drive the gear to rotate.
7. The inflatable photovoltaic solar protection device of claim 5, wherein the driving assembly comprises a driver, a screw rod and a slider, the screw rod is connected with the guide rail, the screw rod extends along the height direction of the building outer wall, the screw rod is rotatable relative to the guide rail, the slider is connected with the second cross rod, the slider is sleeved on the screw rod, the slider is movable on the screw rod, and the driver is connected with the screw rod to drive the screw rod to rotate.
8. The inflatable photovoltaic solar protection device of claim 6 or 7, wherein the driving assembly further comprises a first stopper and a second stopper, the first stopper and the second stopper are respectively connected with the guide rail, the first stopper and the second stopper are arranged at intervals in the height direction of the building outer wall, and the second cross bar is located between the first stopper and the second stopper.
9. The inflatable photovoltaic solar protection device of claim 5, wherein the air supply assembly comprises an air pump and a pneumatic valve, the air pump is connected with the pneumatic valve, and the pneumatic valve is connected with the airbag assembly.
10. The inflatable photovoltaic solar protection device as claimed in claim 9, wherein the first cross bar penetrates through the airbag along a length direction of the airbag, an air outlet is formed in an outer surface of the first cross bar, one end of the air outlet is communicated with the inside of the airbag, and the other end of the air outlet is communicated with the pneumatic valve.
11. An inflatable photovoltaic sunshade control method is characterized by comprising the following steps:
the deployment area of the airbag is controlled according to the surrounding environment of the building, and/or the inclination angle of the thin film photovoltaic cell is controlled according to the surrounding environment of the building.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211625767.4A CN115898233A (en) | 2022-12-16 | 2022-12-16 | Inflatable photovoltaic sun-shading device and control method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211625767.4A CN115898233A (en) | 2022-12-16 | 2022-12-16 | Inflatable photovoltaic sun-shading device and control method |
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| CN115898233A true CN115898233A (en) | 2023-04-04 |
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| CN202211625767.4A Pending CN115898233A (en) | 2022-12-16 | 2022-12-16 | Inflatable photovoltaic sun-shading device and control method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116743043B (en) * | 2023-05-23 | 2023-12-15 | 广东旭科太阳能科技有限公司 | Photovoltaic sunlight room |
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| US20110030285A1 (en) * | 2009-08-06 | 2011-02-10 | Wattlots Llc | Open-air parking shelter with photovoltaic elements and improved airflow characteristics |
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