Green energy-saving building structure

Abstract

The invention relates to the technical field of energy-saving buildings, in particular to a green energy-saving building structure which comprises a fixing frame body and further comprises an unfolding and folding fixing plate, the unfolding and folding fixing plate is fixedly installed on the fixing frame body, and a foldable photovoltaic panel is further fixedly installed on the unfolding and folding fixing plate. An unfolding and folding moving plate is arranged at the other end of the foldable photovoltaic panel, and the unfolding and folding moving plate is in sliding connection with the fixed frame body; wherein the fixed frame body is also provided with a driving assembly; the heat insulation plate is fixedly mounted on the fixed frame body, and a plurality of flow guide grids are further arranged on the heat insulation plate; the photovoltaic conversion control system is connected with the fixing frame body and the foldable photovoltaic panel and electrically connected with the driving assembly and the ion wind generator, and according to the green energy-saving building structure, the energy-saving and environment-friendly effects are achieved, and meanwhile ventilation and heat dissipation in a building are facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of energy-saving buildings, and specifically to a green energy-saving building structure. Background Art

[0002] The background of green energy-saving building structures is closely related to the global increasing emphasis on sustainable development and environmental protection. With the increasingly severe environmental problems, the construction industry, as an important field of energy consumption and carbon emissions, its green transformation has become particularly important. In this context, green energy-saving building structures have emerged, and the application of photovoltaic panels has become a highlight. Photovoltaic panels, also known as solar panels, are one of the reliable methods for producing renewable energy. Combining photovoltaic panels with building structures forms the technical concept of building-integrated photovoltaics (BIPV). In BIPV, photovoltaic panels are integrated into the building structure, such as roofs, exterior walls, and windows, etc., enabling them to not only undertake the structural functions of the building but also perform photoelectric conversion, achieving power self-sufficiency and energy conservation and emission reduction. This technology not only saves energy and protects the environment, without consuming fuel and generating pollutants, but also reduces the energy cost of buildings and improves energy efficiency. Buildings integrated with photovoltaic panels can better insulate heat and keep warm, reducing the energy consumption of air conditioners and heaters. At the same time, BIPV technology has flexibility and can be customized according to the shape and size of buildings, adapting to various environments. Whether it is a family, commercial building or public facility, the goal of green energy can be achieved through BIPV.

[0003] In existing green energy-saving building structures, photovoltaic panels are usually fully covered on positions such as roofs or exterior walls. Although the effect of energy conservation and environmental protection is achieved, it is not conducive to the ventilation and heat dissipation inside the building, and its use has certain limitations and cannot meet the increasingly complex actual use requirements. Therefore, in view of the above status quo, there is an urgent need to develop a green energy-saving building structure to overcome the deficiencies in current practical applications. Summary of the Invention

[0004] The purpose of the present invention is to provide a green energy-saving building structure to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solutions:

[0006] A green energy-saving building structure includes a fixed frame body detachably installed on a roof or an exterior wall, and further includes:

[0007] An unfolding and fixing plate, the unfolding and fixing plate is fixedly installed on the fixed frame body, and a foldable photovoltaic panel is also fixedly installed on the unfolding and fixing plate. The other end of the foldable photovoltaic panel is provided with an unfolding and moving plate, and the unfolding and moving plate is slidably connected to the fixed frame body;

[0008] Wherein, a driving component is further arranged on the fixed frame body for driving the unfolding and moving plate to drive the foldable photovoltaic panel to unfold and fold;

[0009] A heat insulation plate, which is fixedly installed on the fixed frame body, is arranged close to the foldable photovoltaic panel, and a plurality of flow guiding grids are arranged on the heat insulation plate, and an ion wind generator for increasing the ventilation volume is arranged at the flow guiding grids;

[0010] And a photoelectric conversion control system, which is respectively connected with the fixed frame body and the foldable photovoltaic panel, and is electrically connected with the driving component and the ion wind generator respectively.

[0011] As a further scheme of the present invention: it further includes: a control slide rail, which is fixedly installed on the heat insulation plate;

[0012] Wherein, the control slide rail is also electrically connected with the photoelectric conversion control system, and is used for judging the folding angle of the foldable photovoltaic panel according to the position where the unfolding and moving plate moves, so as to enable the photoelectric conversion control system to start working;

[0013] And a limit sliding seat, which is fixedly connected with the unfolding and moving plate and is slidably connected with the control slide rail.

[0014] As a further scheme of the present invention: the driving component includes:

[0015] A storage chute, which is opened on the fixed frame body;

[0016] A slider, which is fixedly installed on the unfolding and moving plate, and the slider is also inserted into the storage chute and is slidably connected with the storage chute;

[0017] And a reverse driving unit, which is respectively connected with the fixed frame body and the slider, and is electrically connected with the photoelectric conversion control system.

[0018] As a further scheme of the present invention: the reverse driving unit includes:

[0019] A double-headed telescopic rod, which is fixedly installed on the fixed frame body through a fixed seat;

[0020] An anti-disengagement hole, which is opened on the fixed frame body and is communicated with the storage chute;

[0021] An arc-shaped guide rope plate, which is fixedly installed on the fixed frame body, and the arc-shaped guide rope plate is also arranged close to the anti-disengagement hole;

[0022] and a state adjustment drawstring, one end of the state adjustment drawstring is fixedly connected to one end of the double-headed telescopic rod, and the other end of the state adjustment drawstring sequentially bypasses the arc-shaped guide plate, passes through the anti-drop hole, and passes through the slider and then is fixedly connected to the other end of the state adjustment drawstring;

[0023] Wherein, the slider is fixedly connected to the state adjustment drawstring, and the number of the arc-shaped guide plates and the anti-drop holes is two pairs, and the two pairs of arc-shaped guide plates and anti-drop holes are respectively located at both ends of the fixed frame body.

[0024] As a further solution of the present invention: connecting parts are also fixedly installed on both sides of the fixed frame body.

[0025] As a further solution of the present invention: the foldable photovoltaic panel is composed of a plurality of photovoltaic cells, and a folding part is arranged between adjacent photovoltaic cells;

[0026] Wherein, the folding part adopts a structure in which a hinge shaft and a rotating sleeve are matched, the hinge shaft and the rotating sleeve are respectively connected to two photovoltaic cells, and they are rotatably connected between them.

[0027] As a further solution of the present invention: the photoelectric conversion control system includes:

[0028] An optical encoder arranged on the fixed frame body for detecting the displacement of the unfolding and moving plate;

[0029] An array of thin-film pressure sensors integrated on the back plate of the photovoltaic panel;

[0030] An irradiance and wind speed sensor and a multi-device linkage controller installed on the fixed frame body;

[0031] Wherein, the multi-device linkage controller generates a control command according to the following formula:

[0032]

[0033] Wherein, the proportionality coefficient K p = 1.2, the integral coefficient K i = 0.3, the differential coefficient K d = 0.15;

[0034] e(t) is the deviation between the set angle and the measured angle, e(t)=θ set -θ, θ set is the set angle, θ is the measured angle;

[0035] The environmental correction function f(I,V w x,T)=Icosθ - 0.5V w 2 -0.3(T - 25);

[0036] I is the irradiance, V w is the wind speed, T is the ambient temperature, and α is the ambient correction coefficient.

[0037] As a further solution of the present invention: a detachable cleaning seat is further provided on the unfolding and moving plate, a piezoelectric ceramic cleaning module is installed on the detachable cleaning seat, a sponge block is provided on the piezoelectric ceramic cleaning module, and the piezoelectric ceramic cleaning module is electrically connected to the photoelectric conversion control system;

[0038] When the unfolding and moving plate slides above the diversion grid, the piezoelectric ceramic cleaning module cleans a plurality of insect-proof filter holes opened on the diversion grid.

[0039] As a further solution of the present invention: when the multi-device linkage controller is working;

[0040] When the unfolding angle θ≥75°, the piezoelectric ceramic cleaning module is started, and its driving frequency satisfies:

[0041]

[0042] wherein, v is the movement speed of the unfolding and moving plate, δ is the thickness of the piezoelectric ceramic, E is the elastic modulus, and ρ is the material density;

[0043] When the irradiance and wind speed sensors detect that the irradiance I>800W / m 2 , and the wind speed V w <5m / s, it is forced to enter the maximum unfolding angle mode, wherein, θ max =85°±2°.

[0044] As a further solution of the present invention: the calculation model of the ambient correction coefficient α is:

[0045]

[0046] At the same time, the following devices are also associated and controlled:

[0047] The voltage output of the ion wind generator: V ion =8+0.3(T - 25)kV.

[0048] Compared with the prior art, the beneficial effects of the present invention are:

[0049] During the use of a green energy-saving building, the fixed frame can be installed at a specified position on the roof or exterior wall through the connecting part. Of course, it can also be connected to other photovoltaic panel frames through the connecting part to form an integral structure. During the use of the foldable photovoltaic panel on the fixed frame, under the control of the photoelectric conversion control system, the driving component can be activated to move, so that the foldable photovoltaic panel in the unfolded state shrinks into the folded state. During this process, the limit sliding seat will slide on the control slide rail, and through the displacement amount of the limit sliding seat sliding on the control slide rail, a closed-loop feedback control is carried out on the photoelectric conversion control system to form a double-position guarantee. At the same time, after the foldable photovoltaic panel is in the folded state, a part of the diversion grid arranged at the bottom of the foldable photovoltaic panel will be connected to the outside, and under the control of the photoelectric conversion control system, the ion wind generator will work, so as to meet the ventilation requirements of the building interior. In addition, since the control slide rail and the diversion grid form a wavy structure, a certain heat dissipation space can be formed below the foldable photovoltaic panel to facilitate the heat dissipation treatment of the foldable photovoltaic panel in the working state, thereby extending the service life of the equipment. And if the area covered by the foldable photovoltaic panel is relatively large, the photoelectric conversion control system can also be connected to an external lithium iron phosphate energy storage system. When the foldable photovoltaic panel is in the folded state, the building power supply can be switched to the lithium iron phosphate energy storage system to ensure power supply safety, with simple operation, realizing the millisecond-level linkage response of the photovoltaic panel angle - environmental parameters - building equipment (average response time.s), and the photovoltaic power generation not only serves as energy output, but also reversely controls the building envelope through the irradiance signal, and takes the photovoltaic panel position signal as both the control source (power generation state) and the controlled object (structural state), breaking through the single control dimension. Thus, while achieving the energy-saving and environmental protection effect, it is also beneficial to the ventilation and heat dissipation inside the building, providing convenience for users. Description of the Drawings

[0050] Figure 1 Schematic perspective view of the fixed frame in an embodiment of the present invention.

[0051] Figure 2 Schematic perspective view of the foldable photovoltaic panel in an embodiment of the present invention.

[0052] Figure 3 Schematic perspective view of the heat insulation board in an embodiment of the present invention.

[0053] Figure 4 Schematic perspective view of the control slide rail in an embodiment of the present invention.

[0054] Figure 5 Schematic perspective view of the arc guide rope plate in an embodiment of the present invention.

[0055] Figure 6 Schematic perspective view of the diversion grid in an embodiment of the present invention.

[0056] Figure 7 This is a three-dimensional structural schematic diagram of the unfolding and moving plate in the embodiment of the present invention.

[0057] Figure 8 This is a three-dimensional structural schematic diagram of the state adjustment pull rope in the embodiment of the present invention.

[0058] Figure 9 This is an enlarged structural schematic diagram of the folding part in the embodiment of the present invention.

[0059] In the figure: 1 - fixed frame body, 2 - irradiance and wind speed sensor, 3 - unfolding and moving plate, 4 - storage chute, 5 - connecting part, 6 - detachable cleaning seat, 7 - foldable photovoltaic panel, 8 - thin film pressure sensor, 9 - unfolding and fixing plate, 10 - state adjustment pull rope, 11 - double-headed telescopic rod, 12 - heat insulation plate, 13 - insect-proof filter hole, 14 - control slide rail, 15 - diversion grid, 16 - arc-shaped guide rope plate, 17 - anti-detachment hole, 18 - fixed seat, 19 - piezoelectric ceramic cleaning module, 20 - slider, 21 - limit slide seat, 22 - folding part, 23 - hinge shaft, 24 - rotating sleeve, 25 - multi-device linkage controller. Specific embodiments

[0060] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0061] The following describes the specific implementation of the present invention in detail with specific embodiments.

[0062] Please refer to Figures 1-9 , a green energy-saving building structure provided by an embodiment of the present invention includes a fixed frame body 1 detachably installed on a roof or an exterior wall, and further includes:

[0063] An unfolding and fixing plate 9, the unfolding and fixing plate 9 is fixedly installed on the fixed frame body 1, and a foldable photovoltaic panel 7 is also fixedly installed on the unfolding and fixing plate 9. The other end of the foldable photovoltaic panel 7 is provided with an unfolding and moving plate 3, and the unfolding and moving plate 3 is slidably connected to the fixed frame body 1;

[0064] Among them, a driving assembly for driving the unfolding and moving plate 3 to drive the foldable photovoltaic panel 7 to unfold and fold is further provided on the fixed frame body 1;

[0065] A heat insulation board 12, which is fixedly installed on the fixed frame body 1 and is disposed close to the foldable photovoltaic panel 7. A plurality of flow guiding grids 15 are further arranged on the heat insulation board 12, and an ion wind generator for increasing the ventilation volume is arranged at the flow guiding grids 15;

[0066] And a photoelectric conversion control system, which is respectively connected to the fixed frame body 1 and the foldable photovoltaic panel 7, and is electrically connected to the drive assembly and the ion wind generator respectively.

[0067] Please refer to Figures 1-9 , further comprising: a control slide rail 14, which is fixedly installed on the heat insulation board 12;

[0068] Wherein, the control slide rail 14 is also electrically connected to the photoelectric conversion control system, and is used to judge the folding angle of the foldable photovoltaic panel 7 according to the position where the unfolding and moving plate 3 moves, so as to enable the photoelectric conversion control system to start working;

[0069] And a limit slide seat 21, which is fixedly connected to the unfolding and moving plate 3 and is slidably connected to the control slide rail 14.

[0070] During the use of the green energy-saving building, the fixed frame 1 can be installed at the designated position on the roof or the outer wall through the connecting part 5. Of course, it can also be connected to other photovoltaic panel frames through the connecting part 5 to form an integral structure. During the use of the foldable photovoltaic panel 7 on the fixed frame 1, under the control of the photoelectric conversion control system, the driving component can be activated to make the unfolded foldable photovoltaic panel 7 contract into a folded state. During this process, the limit sliding seat 21 will slide on the control slide rail 14, and through the displacement of the limit sliding seat 21 sliding on the control slide rail 14, a closed-loop feedback control is carried out on the photoelectric conversion control system to form a double positioning guarantee. At the same time, after the foldable photovoltaic panel 7 is in the folded state, a part of the diversion grid 15 arranged at the bottom of the foldable photovoltaic panel 7 will be connected to the outside, and under the control of the photoelectric conversion control system, the ion wind generator will work, so as to meet the ventilation requirements of the building interior. In addition, since the control slide rail 14 and the diversion grid 15 form a wavy structure, a certain heat dissipation space can be formed below the foldable photovoltaic panel 7 to facilitate the heat dissipation treatment of the foldable photovoltaic panel 7 in the working state, thereby prolonging the service life of the equipment. And if the area covered by the foldable photovoltaic panel 7 is relatively large, the photoelectric conversion control system can also be connected to an external lithium iron phosphate energy storage system. When the foldable photovoltaic panel 7 is in the folded state, the building power supply can be switched to the lithium iron phosphate energy storage system to ensure power supply safety, with simple operation, realizing the millisecond-level linkage response of the photovoltaic panel angle - environmental parameters - building equipment (average response time 0.8 s). Moreover, the photovoltaic power generation not only serves as energy output, but also controls the building envelope structure in reverse through the irradiance signal, and takes the photovoltaic panel position signal as both the control source (power generation state) and the controlled object (structural state), breaking through the single control dimension. Thus, while achieving the energy-saving and environmental protection effect, it is also beneficial to the ventilation and heat dissipation inside the building, providing convenience for users.

[0071] In an embodiment of the present invention, please refer to Figures 1-9 , the driving component includes:

[0072] The storage chute 4 is opened on the fixed frame 1;

[0073] The slider 20 is fixedly installed on the unfolding and moving plate 3, and the slider 20 is also inserted into the storage chute 4 and is slidably connected to the storage chute 4;

[0074] And a reverse driving unit, the reverse driving unit is respectively connected to the fixed frame 1 and the slider 20 and is electrically connected to the photoelectric conversion control system.

[0075] The reverse driving unit includes:

[0076] The double-headed telescopic rod 11 is fixedly installed on the fixed frame body 1 through the fixing seat 18;

[0077] The anti-detachment hole 17 is opened on the fixed frame body 1 and communicates with the storage chute 4;

[0078] The arc-shaped wire guiding plate 16 is fixedly installed on the fixed frame body 1, and the arc-shaped wire guiding plate 16 is also arranged close to the anti-detachment hole 17;

[0079] And the state adjustment pull rope 10, one end of the state adjustment pull rope 10 is fixedly connected to one end of the double-headed telescopic rod 11, and the other end of the state adjustment pull rope 10 sequentially bypasses the arc-shaped wire guiding plate 16, passes through the anti-detachment hole 17, and penetrates through the slider 20 and then is fixedly connected to the other end of the state adjustment pull rope 10;

[0080] Wherein, the slider 20 is fixedly connected to the state adjustment pull rope 10, and the number of the arc-shaped wire guiding plates 16 and the anti-detachment holes 17 is two pairs, and the two pairs of the arc-shaped wire guiding plates 16 and the anti-detachment holes 17 are respectively located at both ends of the fixed frame body 1.

[0081] When the foldable photovoltaic panel 7 needs to be folded, the double-headed telescopic rod 11 is started, and one end of the state adjustment pull rope 10 can be pulled to contract into the double-headed telescopic rod 11, while the other end of the state adjustment pull rope 10 extends out from the other end of the state adjustment pull rope 10. In this process, the slider 20 moves in the storage chute 4 towards the unfolding and fixing plate 9, and drives the unfolding and moving plate 3 to move synchronously. Under the pushing action of the unfolding and moving plate 3, the foldable photovoltaic panel 7 can be changed from the unfolded state to the folded state. Similarly, when the foldable photovoltaic panel 7 in the folded state needs to be changed to the unfolded state, only the double-headed telescopic rod 11 needs to be started to move in the reverse direction, which will not be elaborated here. When the foldable photovoltaic panel 7 is in the folded state, ventilation and heat dissipation operations can be carried out inside the building.

[0082] In an embodiment of the present invention, please refer to Figures 1-9 , and connection parts 5 are also fixedly installed on both sides of the fixed frame body 1.

[0083] The foldable photovoltaic panel 7 is composed of a plurality of photovoltaic cells, and a folding part 22 is arranged between adjacent photovoltaic cells;

[0084] Wherein, the folding part 22 adopts a structure in which a hinge shaft 23 and a rotating sleeve 24 are matched, the hinge shaft 23 and the rotating sleeve 24 are respectively connected to two photovoltaic cells, and they are rotatably connected therebetween.

[0085] When the foldable photovoltaic panel 7 is in the folded state, two adjacent photovoltaic wafers will rotate around the hinge axis 23. Among them, a torsion spring structure can be arranged between the hinge axis 23 and the rotating sleeve 24 to enable multiple photovoltaic wafers to rotate simultaneously. Of course, the folding part 22 can also be in the form of an elastic metal sheet, which can be deformed under the pushing action of the photovoltaic wafers to achieve the purpose of folding. Of course, other existing folding structures can also be used, which will not be elaborated here. When the hinge axis 23 rotates in the rotating sleeve 24, the included angle between two photovoltaic wafers can be changed.

[0086] In an embodiment of the present invention, please refer to Figures 1-9 , the photoelectric conversion control system includes:

[0087] An optical encoder provided on the fixed frame 1 for detecting the displacement of the unfolding and moving plate 3;

[0088] An array of thin-film pressure sensors 8 integrated on the backplane of the photovoltaic panel;

[0089] An irradiance and wind speed sensor 2 and a multi-device linkage controller 25 installed on the fixed frame 1;

[0090] Among them, the multi-device linkage controller 25 uses an STM32H743IIK6 microcontroller to generate a control instruction according to the following formula:

[0091]

[0092] Among them, K p = 1.2 (proportional coefficient), K i = 0.3 (integral coefficient), K d = 0.15 (differential coefficient);

[0093] e(t) is the deviation between the set angle and the measured angle, e(t) = θ set - θ, θ set is the set angle, θ is the measured angle;

[0094] The environmental correction function f(I, V w , T) = Icosθ - 0.5V w 2 - 0.3(T - 25);

[0095] I is the irradiance, V w is the wind speed, T is the environmental temperature, and α is the environmental correction coefficient.

[0096] Please refer to Figures 1-9, a detachable cleaning base 6 is further provided on the unfolding and moving plate 3, a piezoelectric ceramic cleaning module 19 is installed on the detachable cleaning base 6, a sponge block is arranged on the piezoelectric ceramic cleaning module 19, and the piezoelectric ceramic cleaning module 19 is electrically connected to the photoelectric conversion control system;

[0097] When the unfolding and moving plate 3 slides above the diversion grid 15, the piezoelectric ceramic cleaning module 19 cleans a plurality of insect-proof filter holes 13 formed in the diversion grid 15.

[0098] When the unfolding and moving plate 3 slides to directly above the diversion grid 15, the photoelectric conversion control system triggers a cleaning instruction through the displacement signal of the unfolding and moving plate 3. The multi-device linkage controller 25 generates a driving signal to make the piezoelectric ceramic sheet generate longitudinal vibration. This vibration is transmitted to the sponge block and forms high-frequency friction (amplitude 5 μm) with the inner wall of the insect-proof filter hole 13. When it is detected that the irradiance I > 800 W / m 2 (high temperature will increase the adhesion of dust accumulation), the driving voltage is increased to 70 Vpp, and the amplitude is increased to 7 μm to cope with the high dust accumulation scenario. During the cleaning process, under the action of vibration and in cooperation with the cleaning effect of the sponge block, the piezoelectric drive of the cleaning module increases the dust removal rate from 92% to 97%, and the annual attenuation rate is reduced to 0.8% / year.

[0099] In an embodiment of the present invention, when the multi-device linkage controller 25 is working;

[0100] When the unfolding angle θ ≥ 75°, the piezoelectric ceramic cleaning module 19 is started, and its driving frequency satisfies:

[0101]

[0102] wherein, v is the moving speed of the unfolding and moving plate 3, δ is the thickness of the piezoelectric ceramic, E is the elastic modulus, and ρ is the material density;

[0103] When the irradiance and wind speed sensor 2 detects that the irradiance I > 800 W / m 2 , and the wind speed V w < 5 m / s, it is forced to enter the maximum unfolding angle mode, wherein, θ max = 85° ± 2°. The wind load perception system can trigger folding and avoidance 15 - 20 seconds in advance to avoid structural damage (the critical wind speed warning value is 12 m / s).

[0104] Through the angle-irradiance linkage control, the photovoltaic panel is always in the best inclination angle (error < ±2°), and the daily average power generation is increased by 23 - 28%.

[0105] In an embodiment of the present invention, the calculation model of the environmental correction coefficient α is:

[0106]

[0107] Meanwhile, the following devices are also associated and controlled:

[0108] The voltage output of the ion wind generator: V ion = 8 + 0.3(T - 25) kV. The fresh air heat recovery efficiency reaches 82% through the ion wind ventilation system.

[0109] In summary, through Matlab / Simulink simulation verification, when the set angle θ set = 85°, the system steady-state error ≤ 0.3° (test conditions: I = 850 W / m 2 , V w = 3 m / s), the response time is 0.8 seconds, meeting the General Technical Requirements for Solar Photovoltaic System Controllers of GB / T 37223-2018;

[0110] Under standard test conditions (STC, AM1.5, 1000 W / m 2 , 25 °C), the daily average power generation of the present invention reaches 4.7 kWh / m 2 , which is 23.7% higher than that of the fixed photovoltaic system;

[0111] Using ISO 12103-1A2 standard fine dust for the dust accumulation experiment, the dust removal rate of the insect-proof filter holes 13 by the piezoelectric ceramic cleaning module (driving frequency 20 kHz) reaches 97%, which is 5% higher than the traditional mechanical cleaning method (test equipment: Tinius Olsen H5KT universal testing machine);

[0112] Through ANSYS finite element analysis, when the wind speed V w = 12 m / s, it automatically folds to the safe angle of 45°. At this time, the stress σ of the photovoltaic panel = 85 MPa < the material yield strength σs = 235 MPa, meeting the Load Code for Building Structures of GB50009-2012.

[0113] It should be noted that in the present invention, unless otherwise clearly specified and limited, terms such as "sliding", "rotating", "fixing", "equipped with", etc. should be understood in a broad sense. For example, it can be a welded connection, a bolt connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal connection of two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0114] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only includes an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A green energy-saving building structure, comprising a fixed frame that can be detachably mounted on a roof or an outer wall, characterized in that: Also includes: An unfolding fixed plate, the unfolding fixed plate is fixedly mounted on the fixed frame, and a foldable photovoltaic panel is also fixedly mounted on the unfolding fixed plate, and an unfolding movable plate is arranged at the other end of the foldable photovoltaic panel, and the unfolding movable plate is slidably connected to the fixed frame; Wherein, the fixed frame is also provided with a driving component for driving the unfolding and folding movable plate to drive the foldable photovoltaic panel to extend and fold; A heat insulation board, the heat insulation board is fixedly mounted on the fixed frame and arranged close to the foldable photovoltaic panel, and a plurality of guide grids are also arranged on the heat insulation board, and an ion wind generator for increasing ventilation is arranged at the guide grid; And a photoelectric conversion control system, which is respectively connected to the fixed frame and the foldable photovoltaic panel, and is respectively electrically connected to the driving component and the ion wind generator.

2. The green energy-saving building structure according to claim 1 is characterized in that: Also includes: A control slide rail, wherein the control slide rail is fixedly mounted on the heat insulation board; The control rail is also electrically connected to the photoelectric conversion control system, and is used to determine the folding angle of the foldable photovoltaic panel according to the position of the unfolding movable panel, so as to start the photoelectric conversion control system; And a limiting slide seat, wherein the limiting slide seat is fixedly connected to the unfolding movable plate and is slidably connected to the control slide rail.

3. The green energy-saving building structure according to claim 1 or 2, characterized in that: The drive assembly comprises: A storage chute, the storage chute is opened on the fixed frame; A slider, the slider is fixedly mounted on the unfolding movable plate, and the slider is also inserted into the receiving slide groove and is slidably connected with the receiving slide groove; and a reverse driving unit, wherein the reverse driving unit is respectively connected to the fixed frame and the sliding block, and is electrically connected to the photoelectric conversion control system.

4. The green energy-saving building structure according to claim 3 is characterized in that: The reverse driving unit comprises: A double-ended telescopic rod, the double-ended telescopic rod being fixedly mounted on the fixed frame through a fixing seat; An anti-drop hole, which is provided on the fixed frame and communicates with the receiving slide groove; An arc-shaped rope guide plate, which is fixedly mounted on the fixed frame and is also arranged close to the anti-drop hole; and a state-adjusting pull rope, one end of which is fixedly connected to one end of the double-head telescopic rod, and the other end of which passes through the arc-shaped guide rope plate, passes through the anti-drop hole, and passes through the slider and is fixedly connected to the other end of the state-adjusting pull rope; Wherein, the slider is fixedly connected to the state adjustment rope, the number of the arc-shaped rope guide plates and the anti-drop holes is two pairs, and the two pairs of the arc-shaped rope guide plates and the anti-drop holes are respectively located at two ends of the fixed frame.

5. The green energy-saving building structure according to claim 1, characterized in that: Connecting parts are also fixedly installed on both sides of the fixed frame.

6. The green energy-saving building structure according to claim 1 or 5, characterized in that: The foldable photovoltaic panel is composed of a plurality of photovoltaic sheets, and a folding portion is provided between adjacent photovoltaic sheets; The folding portion adopts a structure in which a hinge shaft and a rotating sleeve cooperate with each other. The hinge shaft and the rotating sleeve are respectively connected to two photovoltaic sheets, and the two are rotationally connected.

7. The green energy-saving building structure according to claim 1 or 2, characterized in that: The photoelectric conversion control system comprises: A photoelectric encoder provided on the fixed frame, used to detect the displacement of the unfolding and closing movable plate; An array of thin film pressure sensors integrated into the backplane of a photovoltaic panel; Irradiance and wind speed sensors and a multi-device linkage controller installed on the fixed frame; The multi-device linkage controller generates control instructions according to the following formula: Among them, the proportionality coefficient K p =1.2, integral coefficient K i =0.3, differential coefficient K d =0.15; e(t) is the deviation between the set angle and the measured angle, e(t) = θ set -θ,θ set is the set angle, θ is the measured angle; Environmental correction function f(I,V w ,T)=Icosθ-0.5V w 2 -0.3(T-25); I is irradiance, V w is the wind speed, T is the ambient temperature, and α is the environmental correction coefficient.

8. The green energy-saving building structure according to claim 7 is characterized in that: The unfolding movable plate is also provided with a detachable cleaning seat, on which a piezoelectric ceramic cleaning module is installed, on which a sponge block is provided, and the piezoelectric ceramic cleaning module is electrically connected to the photoelectric conversion control system; When the unfolding movable plate slides above the guide grid, the piezoelectric ceramic cleaning module cleans the multiple insect-proof filter holes opened on the guide grid.

9. The green energy-saving building structure according to claim 8, characterized in that: When multiple device linkage controllers are working; When the unfolding angle θ≥75°, the piezoelectric ceramic cleaning module is started, and its driving frequency satisfies: Wherein, v is the movement speed of the unfolding moving plate, δ is the thickness of the piezoelectric ceramic, E is the elastic modulus, and ρ is the material density; When the irradiance and wind speed sensors detect that the irradiance I is greater than 800 W / m 2 , and wind speed V w When <5m / s, it is forced to enter the maximum expansion angle mode, where θ max =85°±2°.

10. The green energy-saving building structure according to claim 9, characterized in that: The calculation model of the environmental correction coefficient α is: At the same time, the following devices are also associated and controlled: Voltage output of ion wind generator: V ion =8+0.3(T-25)kV.

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