A hail-resistant flexible photovoltaic power generation device

Abstract

This invention discloses a hail-resistant flexible photovoltaic power generation device, comprising: a corrugated steel sheet; a buffer pad, which is an elastic pad; a flexible photovoltaic mechanism laid on the buffer pad, including a plurality of flexible components distributed along the width direction of the corrugated steel sheet; and a limiting mechanism, which includes two clamping strips arranged side by side along the width direction of the corrugated steel sheet and two limiting components respectively disposed on both sides of the flexible photovoltaic mechanism. This hail-resistant flexible photovoltaic power generation device enhances hail resistance by laying an elastic buffer pad between the corrugated steel sheet and the flexible components, allowing the flexible components to compress the buffer pad and vibrate to a corresponding amplitude when impacted by hail. Furthermore, the two limiting components and two clamping strips in the limiting mechanism limit the installation of the multiple flexible components, preventing bending and deformation of the flexible components due to wind impact. This strengthens the stability of the connection between the flexible components, reduces the possibility of microcracks, and thus extends the service life.

Description

Technical Field

[0001] This invention relates to the field of flexible photovoltaic module technology, and in particular to a hail-resistant flexible photovoltaic power generation device. Background Technology

[0002] Flexible modules are photovoltaic modules composed of flexible solar panels. Compared with traditional plate-shaped solar panels, they do not require glass backsheets and cover plates, and are more than 70% lighter than double-glass solar cell modules. Therefore, they have the advantages of being lighter, fully foldable, and easy to carry.

[0003] When flexible modules are installed on corrugated steel sheets, they are usually fixed to the sheets directly with adhesive. However, there are many potential problems when using this method to fix flexible modules for photovoltaic power generation, as described below:

[0004] 1. The corrugated steel sheet and the flexible component are connected by a rigid connection. When subjected to external impact, especially in hail, the flexible component is prone to breakage and damage. Existing technology usually increases the thickness of the flexible component, which will inevitably increase the weight of the flexible component.

[0005] 2. After the clamping strip is cured and formed, it comes into contact with the flexible component and changes due to temperature. This causes thermal expansion and contraction, which not only easily causes the paint on the color steel tile to peel off and affects the connection strength between the color steel tile and the flexible component, but the expanded clamping strip can also cause hidden cracks in the flexible component.

[0006] 3. Flexible components and corrugated steel sheets are usually installed on the top of buildings, which is a high position and is subject to greater wind force. Regardless of whether the flexible components are laid horizontally or vertically, there is always a gap between the outer edge of the flexible components and the corrugated part (protruding part) of the corrugated steel sheet. When the flexible components are blown by the wind, they are prone to bending and deformation. Especially in strong winds, excessive bending can not only cause hidden cracks, but in severe cases, it can also blow the flexible components off the surface of the corrugated steel sheet (especially in the case of paint peeling off the corrugated steel sheet due to thermal expansion and contraction).

[0007] 4. The flexible components are installed at high locations and are exposed to sunlight for a long time. Combined with the heat generated during their operation, the temperature of the flexible components rises, which not only reduces the power generation efficiency but also exacerbates the temperature rise. This further leads to the expansion of the clamping strips and the peeling of the paint on the corrugated steel sheet, affecting the connection between the flexible components and the corrugated steel sheet.

[0008] Therefore, it is necessary to improve the existing flexible photovoltaic power generation devices. Summary of the Invention

[0009] The purpose of this invention is to overcome the defects in the prior art and provide a hail-resistant flexible photovoltaic power generation device that ensures connection stability, avoids microcracks caused by external factors, and improves power generation efficiency.

[0010] To address the aforementioned technical problems, this invention discloses a hail-resistant flexible photovoltaic power generation device, comprising:

[0011] Color steel roofing sheets, which are laid on the roof of a building;

[0012] A buffer pad, wherein the buffer pad is an elastic pad laid on the color steel sheet;

[0013] A flexible photovoltaic structure is laid on the buffer pad. The flexible structure includes a number of flexible components distributed along the width direction of the corrugated steel sheet, with adjacent flexible components in contact with each other.

[0014] A limiting mechanism includes two clamping strips arranged side-by-side along the width direction of the corrugated steel sheet and two limiting components respectively disposed on both sides of the flexible photovoltaic mechanism. The flexible photovoltaic mechanism is clamped between the two clamping strips. Each of the two limiting components includes limiting units spaced apart along the width direction of the corrugated steel sheet. In each limiting component, two adjacent limiting units are respectively disposed at both ends of one side of the flexible component. Each limiting unit includes a folding plate fixedly connected to the corrugated steel sheet. The folding plate includes a limiting horizontal plate and a limiting vertical plate fixedly connected vertically. The limiting horizontal plate is horizontally disposed and fits against the front of the flexible component. The limiting vertical plate is vertically disposed and fits against one side of the flexible component.

[0015] Preferably, to facilitate fixing the folding plate to the color steel sheet, the color steel sheet has an integrally formed mounting groove with the groove opening facing upwards. The mounting groove corresponds one-to-one with the limiting unit in the two limiting components. The inner wall of the mounting groove is provided with a protrusion that has a gap with the bottom of the groove. The folding plate includes a fixed horizontal plate that is fixedly connected to the limiting vertical plate. A threaded bolt and a nut pass through the fixed horizontal plate. The nut abuts against the top surface of the fixed horizontal plate. The bolt is set upwards and its head abuts against the protrusion.

[0016] Preferably, in order to enhance the fixing effect of the folded plate, the folded plate slides along the length of the color steel tile on the assembly groove.

[0017] Preferably, in order to ensure the fixation effect on the flexible component, the side of the limiting plate adjacent to the flexible component is provided with an elastic seal.

[0018] Preferably, in order to achieve clamping and limiting of the flexible photovoltaic mechanism, the two clamping strips correspond to and slide with the two mounting slots respectively. Each of the two clamping strips includes an integrally connected sliding part and a clamping part. The sliding part is housed in the mounting slot corresponding to the clamping strip and is slidably connected to the mounting slot. The clamping part protrudes out of the mounting slot and fits against the flexible photovoltaic mechanism.

[0019] Preferably, in order to prevent the clamping strips from sliding and shifting along their length after the device is assembled, both clamping strips are clamped between the two limiting components.

[0020] Preferably, in order to facilitate determining the placement of the cushioning pad, the cushioning pad includes a cushioning part and two insertion parts respectively disposed at both ends of the cushioning part and extending downward, wherein the two insertion parts are respectively fitted to the inner sidewalls of two of the mounting slots.

[0021] Preferably, in order to cool the flexible components and improve their photovoltaic power generation efficiency and output, the color steel tile is also integrally formed with an upward-facing water trough, the buffer pad is a sponge pad, and the buffer pad also includes a water-absorbing part that extends downward and fits with the gap at the bottom of the water trough.

[0022] Preferably, in order to prevent water seepage into the flexible component and extend its service life, a waterproof membrane is provided between the buffer pad and the flexible component, and the waterproof membrane covers the buffer pad.

[0023] Preferably, in order to facilitate the accumulation of water flow for cooling the flexible components in the water tank, baffles are fixed at both ends of the water tank, the inner wall of the water tank and the baffles enclose a water storage space, and the water tank is connected to a water supply pipe.

[0024] In summary, compared with existing technologies, the hail-resistant flexible photovoltaic power generation device of this invention enhances hail resistance by laying an elastic buffer pad between the corrugated steel sheet and the flexible components. This allows the flexible components to compress the buffer pad and vibrate to a corresponding amplitude when impacted by hail. Furthermore, the device utilizes two limiting components and two clamping strips in the limiting mechanism to limit the installation of multiple flexible components, preventing them from bending and deforming due to wind impact. This strengthens the stability of the connection between the flexible components, reduces the possibility of microcracks, and thus extends the service life. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of the hail-resistant flexible photovoltaic power generation device according to the first embodiment of the present invention;

[0026] Figure 2 yes Figure 1 Top view;

[0027] Figure 3 yes Figure 1 The front view;

[0028] Figure 4 yes Figure 3 Enlarged view of part A;

[0029] Figure 5 yes Figure 1 Partial structural diagram;

[0030] Figure 6 yes Figure 5 An explosion diagram;

[0031] Figure 7 This is a schematic diagram of the structure of the limiting unit of the present invention;

[0032] Figure 8 yes Figure 7 An explosion diagram;

[0033] Figure 9 This is a schematic diagram of the limiting unit of the present invention from another perspective;

[0034] Figure 10 yes Figure 9 An explosion diagram;

[0035] Figure 11 This is a schematic diagram of the structure of the cushioning pad of the present invention;

[0036] Figure 12 yes Figure 1 Structural diagrams of the buffer pad and photovoltaic power generation mechanism are omitted.

[0037] Figure 13 yes Figure 12 Enlarged view of part B;

[0038] Figure 14 This is a schematic diagram of the structure of the hail-resistant flexible photovoltaic power generation device according to the second embodiment of the present invention;

[0039] Figure 15 yes Figure 14 Structural diagrams of the limiting mechanism, buffer pad, and photovoltaic power generation mechanism are omitted.

[0040] Figure 16 yes Figure 15 An explosion diagram;

[0041] In the diagram: 100, color steel sheet; 101, assembly groove; 1011, protrusion; 102, water tank; 1021, mating interface; 200, buffer pad; 201, buffer part; 202, plug-in part; 203, water absorption part; 300, flexible component; 400, folding plate; 401, limiting horizontal plate; 4011, assembly bayonet; 402, limiting vertical plate; 403, fixing horizontal plate; 404, sliding plate; 500, bolt; 600, nut; 700, seal; 800, clamping strip; 801, sliding part; 802, clamping part; 900, waterproof membrane; 110, baffle; 120, water supply pipe; 130, one-way valve; 140, connecting pipe. Detailed Implementation

[0042] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solutions of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0043] like Figures 1-13 As shown, the hail-resistant flexible photovoltaic power generation device according to the first embodiment of the present invention includes:

[0044] 100mm color steel sheet, used to pave the roof of buildings;

[0045] Buffer pad 200, the buffer pad 200 is an elastic pad laid on the color steel sheet 100;

[0046] The flexible photovoltaic structure is laid on the buffer pad 200. The flexible structure includes a number of flexible components 300 distributed along the width of the color steel tile 100, with two adjacent flexible components 300 attached to each other.

[0047] The limiting mechanism includes two clamping strips 800 arranged side by side along the width direction of the corrugated steel sheet 100 and two limiting components respectively disposed on both sides of the flexible photovoltaic mechanism. The flexible photovoltaic mechanism is clamped between the two clamping strips 800. Each limiting component includes limiting units spaced apart along the width direction of the corrugated steel sheet 100. In each limiting component, two adjacent limiting units are respectively disposed at both ends of one side of the flexible component 300. The limiting unit includes a folding plate 400 fixedly connected to the corrugated steel sheet 100. The folding plate 400 includes a limiting horizontal plate 401 and a limiting vertical plate 402 fixedly connected vertically. The limiting horizontal plate 401 is horizontally disposed and fits against the front of the flexible component 300. The limiting vertical plate 402 is vertically disposed and fits against one side of the flexible component 300.

[0048] The hail-resistant flexible photovoltaic power generation device of this embodiment mainly consists of a corrugated steel sheet 100, a buffer pad 200, a flexible photovoltaic mechanism, and a limiting mechanism. The corrugated steel sheet 100 is fixedly laid and installed on the top of the building through a channel. Then, a buffer pad 200 is laid on the upper surface of the corrugated steel sheet 100, and then the flexible photovoltaic mechanism is laid on the buffer pad 200. In this embodiment, the flexible photovoltaic mechanism consists of three flexible components 300, which are flexible photovoltaic modules, mainly used for photovoltaic power generation to supply power to the electrical facilities in the building. The number of flexible components 300 can also be other. During installation, the flexible components 300 are arranged close together so that the sides of two adjacent flexible components 300 are in contact, and the three flexible components 300 are distributed along the width direction of the corrugated steel sheet 100. Then, the limiting mechanism is used to connect with the corrugated steel sheet 100, and the installation of the flexible components 300 is completed through the limiting mechanism.

[0049] When the flexible module 300 is installed using the limiting mechanism, the two clamping strips 800 of the limiting mechanism limit the flexible photovoltaic mechanism from both ends. That is, the two clamping strips 800 respectively fit against the side of the two flexible modules 300 at the end position (the side of the flexible module 300 away from the center position) to ensure that the three flexible modules 300 are connected in sequence, thereby completing the limiting installation at both ends of the flexible photovoltaic mechanism. This makes the gap between two adjacent flexible modules 300 zero, allowing more flexible modules 300 to be installed on the limited color steel tile 100 laying surface, thereby increasing the photovoltaic power generation.

[0050] Next, two limiting components are used to limit the installation on both sides of the flexible photovoltaic module. Specifically, each limiting component includes four limiting units, which are evenly distributed along the width of the corrugated steel sheet 100. In any limiting component, two adjacent limiting units correspond to one of the flexible modules 300. Specifically, the two limiting units are located at both ends of one side of the flexible module 300. That is, the two limiting units limit the two ends of the sides of three flexible modules 300 (wherein, since two adjacent flexible modules 300 are attached, therefore...). In two adjacent flexible components 300 (where the sides on the same straight line have overlapping end positions), during the limiting process, the folding plate 400 is fixedly connected to the color steel tile 100. The limiting horizontal plate 401 of the folding plate 400 is attached to the front of the flexible component 300 (that is, the light-receiving surface of the flexible component 300), while the limiting vertical plate 402 is attached to the side of the flexible component 300. In this way, through the two limiting components, four limiting units are used in sequence to complete the side limiting of the three flexible components 300, and the ends are limited by two clamping strips 800, thus completing the installation of the flexible component 300.

[0051] Compared with existing technologies, in this flexible photovoltaic power generation device, an elastic buffer pad 200 is laid between the flexible module 300 and the corrugated steel sheet 100. There are three buffer pads 200, one for each of the three flexible modules 300, directly below them (of course, there can be other numbers of buffer pads 200, or a single integrated buffer pad 200 covering the corrugated steel sheet 100). The material of the buffer pad 200 includes, but is not limited to, silicone, rubber, sponge, etc. Therefore, as the pressure on the buffer pad 200 varies, the thickness of the buffer pad 200 changes, and the position of the flexible module 300 also changes. The process changes as follows: After being impacted by hail, the hail exerts pressure on the buffer pad 200 through the flexible component 300. This compresses the buffer pad 200, causing the flexible component 300 to move towards the corrugated steel sheet 100 by a certain distance. The buffer pad 200 deforms under compression, exhibiting a deformation recovery force that acts on the flexible component 300, causing it to move away from the corrugated steel sheet 100. In this way, the flexible component 300 vibrates, which reduces the impact force of the hail and enhances its hail resistance, preventing it from breaking or being damaged.

[0052] Furthermore, the two clamping strips 800 in the limiting mechanism clamp and position the two ends of the flexible photovoltaic mechanism. In conjunction with the limiting units in the two limiting components, the flexible photovoltaic mechanism is positioned from both sides. The folding plate 400 is fixedly connected to the color steel sheet 100. The limiting horizontal plate 401 is in contact with the front of the flexible component 300, and the limiting vertical plate 402 is in contact with the side of the flexible component 300. In this state, the buffer pad 200 located below the flexible component 300 is in contact with the back of the flexible component 300, ensuring that the flexible component 300 remains horizontally unfolded, thus preventing the flexible component from collapsing. The flexible module 300 is protected from bending and deformation caused by wind, which may eventually lead to microcracks and damage. This ensures the normal power generation of the flexible photovoltaic structure and extends the service life of the flexible module 300. In addition, it strengthens the connection between the flexible module 300 and the color steel tile 100, preventing the paint on the color steel tile 100 from cracking due to thermal expansion and contraction, which could cause the flexible module 300 to detach from the color steel tile 100. It also avoids the situation where the connection between the flexible module 300 and the color steel tile 100 weakens after being blown by the wind. Therefore, the limiting mechanism ensures that the flexible module 300 is stably installed on the color steel tile 100.

[0053] In a preferred embodiment, the color steel tile 100 has an integrally formed mounting groove 101 with the groove opening facing upward. The mounting groove 101 corresponds one-to-one with the limiting unit in the two limiting components. The inner wall of the mounting groove 101 is provided with a protrusion 1011 with a gap between it and the bottom of the groove. The folding plate 400 includes a fixed horizontal plate 403 fixedly connected to the limiting vertical plate 402. A threaded bolt 500 and a nut 600 pass through the fixed horizontal plate 403. The nut 600 abuts against the top surface of the fixed horizontal plate 403. The bolt 500 is set upward and its head abuts against the protrusion 1011.

[0054] Specifically, such as Figures 1-6 , Figure 12 and Figure 13 As shown, the assembly slot 101 is a through slot. Four assembly slots 101 are integrally formed on the color steel tile 100. Each of the four assembly slots 101 corresponds to one of the four limiting units in the limiting assembly. When the folding plate 400 in the limiting unit is fixedly installed on the color steel tile 100, the fixing horizontal plate 403 is attached to the color steel tile 100, with the bottom surface of the fixing horizontal plate 403 facing the opening of the assembly slot 101. A bolt 500 passes through the fixing horizontal plate 403, with the head of the bolt 500 located on the fixing horizontal plate 403. Below 3, that is, within the assembly groove 101, above the fixed horizontal plate 403, the nut 600 is screwed into the top of the bolt 500, causing the nut 600 to move downward and abut against the fixed horizontal plate 403, while the head of the bolt 500 moves upward and abuts against the protrusion 1011 on the inner wall of the assembly groove 101. In this way, the nut 600 and the bolt 500 cooperate to fix the fixed horizontal plate 403 at the groove opening of the assembly groove 101, thereby fixing the folded plate 400 onto the color steel tile 100.

[0055] In this embodiment, the assembly groove 101 is a T-shaped groove, with its opening width being smaller than its bottom width. This allows protrusions 1011, with gaps between them and the bottom of the groove, to be formed on the two inner sidewalls of the assembly groove 101. This facilitates the insertion of the bolt 500, where the head of the bolt 500 and the nut 600 cooperate to clamp and lock the horizontal plate 403 and the protrusions 1011, thereby completing the fixing operation of the folded plate 400. It should be noted that the assembly groove 101 is not limited to a T-shaped groove; its shape can also be various, such as an L-shaped groove, a dovetail groove, or the cross-section of the inner wall of the assembly groove 101 can be an arc shape, all of which can satisfy the above requirements. That is, the protrusions 1011 on the inner sidewalls of the assembly groove 101 with gaps between them and the bottom of the groove can meet the fixing requirements of the folded plate 400.

[0056] In a preferred embodiment, the folding plate 400 slides along the length of the corrugated steel sheet 100 on the assembly groove 101.

[0057] Specifically, such as Figure 4 , Figures 7-11As shown, the folding plate 400 also includes two sliding plates 404 arranged side by side and fixed below the fixed horizontal plate 403. The two sliding plates 404 are respectively attached to the two inner side walls of the slot opening of the assembly groove 101. With the above structure, during assembly, bolts 500 are placed in the assembly slot 101 with the bolt heads facing down and the rods extending out of the slot of the assembly slot 101. Then, the folding plate 400 is placed on the color steel tile 100, so that the rods of the bolts 500 pass through and fix the horizontal plate 403. At the same time, the two sliding plates 404 are inserted into the slot of the assembly slot 101 and fit against the inner side wall of the assembly slot 101. At this time, the folding plate 400 can slide along the assembly slot 101, while driving the bolts 500 to move, so as to facilitate the adjustment of the positions of the bolts 500 and the folding plate 400. The limiting vertical plate 402 of the folding plate 400 fits against the side of the flexible component 300. Then, the folding plate 400 is fixed to the color steel tile 100 by the cooperation of the nut 600 and the bolt 500. With the above structure, due to the function of the sliding plate 404, after the sliding plate 404 is inserted into the assembly slot 101, the folding plate 400 can only slide and cannot rotate. At this time, by threading a single bolt 500 and nut 600, the folding plate 400 can be fixed on the color steel tile 100.

[0058] In a preferred embodiment, a resilient seal 700 is provided on the side of the limiting plate 401 adjacent to the flexible component 300.

[0059] Specifically, such as Figures 8-10 As shown, the side of the limiting horizontal plate 401 adjacent to the flexible component 300 is also provided with an assembly bayonet 4011. The sealing element 700 is a rubber pad (of course, the sealing element 700 can also be other elastic sealing elements 700, including but not limited to silicone and latex). The sealing element 700 is engaged with the limiting horizontal plate 401 through the assembly bayonet 4011. During assembly, when the limiting horizontal plate 401 is in contact with the front of the flexible component 300, the sealing element 700 is compressed and undergoes elastic deformation. At this time, the sealing surface of the sealing element 700 and the bottom surface of the limiting horizontal plate 401 are on the same plane. When the flexible component 300 is impacted by hail, while vibration occurs, the sealing element 700 is always in contact with the front of the flexible component 300 because the elastically compressed sealing element 700 is in contact with the front of the flexible component 300, thereby preventing the flexible component 300 from detaching from the limiting unit. In this way, the stable installation and connection of the flexible component 300 is guaranteed.

[0060] In a preferred embodiment, two clamping strips 800 correspond to and are slidably engaged with two of the mounting slots 101. Each clamping strip 800 includes an integrally connected sliding portion 801 and a clamping portion 802. The sliding portion 801 is housed within the mounting slot 101 corresponding to the clamping strip 800 and is slidably connected to the mounting slot 101. The clamping portion 802 protrudes from the mounting slot 101 and fits against the flexible photovoltaic mechanism. Furthermore, both clamping strips 800 are clamped between two limiting components.

[0061] Specifically, such as Figures 1-3 , Figure 5 , Figure 12 and Figure 13 As shown, both clamping strips 800 have T-shaped cross-sections. The two clamping strips 800 slide in the assembly grooves 101 at both ends of the color steel tile 100. The lower part of the clamping strip 800 is the sliding part 801, which is sealed and fitted with the inner bottom wall of the assembly groove 101 and the inner side wall of the flexible component 300 away from the center of the assembly groove 101, so that the clamping strip 800 can slide stably along the length direction parallel to the assembly groove 101. The upper part of the clamping strip 800 is the clamping part 802, which is located outside the assembly groove 101 and is used to fit with the side of the flexible component 300 at the end position to ensure that the three flexible components 300 in the flexible photovoltaic mechanism are fitted and connected in sequence. To ensure the positioning effect, the clamping strip 800 is preferably a rigid strip, such as a metal profile, or it can also be a rigid plastic strip, which can achieve a similar technical effect. Furthermore, by the combined action of the limiting units at the same end position of the two limiting components, the position of the clamping strip 800 in the assembly groove 101 can be locked, preventing the clamping strip 800 from moving along the length direction of the assembly groove 101 after installation. Specifically, in the two limiting units facing each other at the same end position of the two limiting components, the limiting vertical plates 402 of the two folding plates 400 simultaneously abut against the two ends of the clamping part 802 of the clamping strip 800, fixing the position of the two folding plates 400 on the color steel tile 100, thereby locking the position of the clamping strip 800 on the color steel tile 100.

[0062] The buffer pad 200 includes a buffer portion 201 and two insertion portions 202 respectively disposed at both ends of the buffer portion 201 and extending downward. The two insertion portions 202 respectively fit against the inner sidewalls of two of the mounting slots 101.

[0063] Specifically, such as Figure 4 , Figure 6 and Figure 11As shown, the cross-section of the buffer pad 200 is U-shaped with downward-facing insertion portions 202 at both ends. These portions are inserted into the slots of two adjacent assembly slots 101, and the bottom of the insertion portions 202 abuts against the sliding portion 801 of the clamping strip 800. With this structure, during assembly, the insertion portions 202 at both ends of the buffer pad 200 are inserted into the two assembly slots 101 respectively, facilitating the positioning and installation of the buffer pad 200. Furthermore, the insertion portions 202 abut against the sliding portion 801 of the clamping strip 800, providing a certain positioning effect for the clamping strip 800.

[0064] In a preferred embodiment, the corrugated steel sheet 100 is also integrally formed with a water trough 102 with the groove opening facing upward, the buffer pad 200 is a sponge pad, and the buffer pad 200 also includes a water-absorbing part 203 that extends downward and is gap-fitted with the bottom of the water trough 102.

[0065] Specifically, such as Figure 1 , Figure 6 , Figure 11 and Figure 12 As shown, the corrugated steel sheet 100 has integrally formed water troughs 102 with upward-facing openings extending along its length. Multiple water troughs 102 are provided, with three equally spaced water troughs 102 positioned between two adjacent assembly slots 101. The buffer pad 200 also includes three water-absorbing parts 203, each corresponding to one of the three water troughs 102. The water-absorbing parts 203 are in contact with the bottom of the water troughs 102, meaning the gap between the water-absorbing parts 203 and the bottom of the water troughs 102 is zero. Preferably, the buffer pad 200 is a sponge pad. It should be noted that the number and distribution of the water troughs 102 on the corrugated steel sheet 100, as well as the number and distribution of the water-absorbing parts 203 on the buffer pad 200, can also be other forms.

[0066] After adopting the above structure, the sponge pad has a certain elasticity, which enables the flexible module 300 to vibrate to reduce the impact of hail. When the flexible module 300 is generating photovoltaic power normally on a sunny day, water is passed into the water tank 102. The water flows at the bottom of the water tank 102 and is absorbed by the sponge pad. Due to the porous structure of the sponge pad, the water flows upward on the sponge pad and finally spreads to the side of the buffer pad 200 that is in contact with the flexible module 300. The water absorbed by the sponge pad can carry away the heat generated by the flexible module 300 during photovoltaic power generation, thereby reducing the temperature of the flexible module 300 and improving the photovoltaic power generation efficiency and photovoltaic power generation of the flexible module 300. Compared to traditional water cooling methods, this invention utilizes the porous structure of the sponge pad to allow water to automatically flow upwards to the side where the buffer pad 200 and the flexible component 300 are in contact. The water directly contacts the flexible component 300, exchanging heat to reduce its temperature. No water pipes are required; only the sponge pad needs to be laid, making installation much simpler. Furthermore, unlike water cooling through pipes where the water needs to pass through a relatively thick pipe wall to contact the flexible component 300, this invention allows for a smaller gap between the water in the sponge pad and the flexible component 300. In traditional photovoltaic systems, water pipes can directly exchange heat with flexible components. However, the limited contact area between the water pipes and the flexible component 300 prevents heat absorption and cooling of the entire back surface of the flexible component 300. In this invention, the flexible component 300 is laid on a sponge pad, with the flexible component 300 and the sponge pad being stacked and connected. Therefore, the water flowing to the top of the sponge pad can contact the entire back surface of the flexible component 300. Furthermore, the water in the sponge pad evaporates directly to the outside, cooling the sponge pad and the water inside, further improving heat exchange efficiency, cooling effect, and increasing the power generation of the flexible component 300. In summary, by automatically absorbing water from the water tank 102 through the sponge pad, the water directly exchanges heat with the flexible component 300, increasing the heat exchange area. The water is further cooled through evaporation, thus significantly improving the cooling effect and increasing photovoltaic power generation efficiency.

[0067] In a preferred embodiment, a waterproof membrane 900 is disposed between the cushioning pad 200 and the flexible component 300, and the waterproof membrane 900 covers the cushioning pad 200. Figure 4 and Figure 9 As shown. The waterproof membrane 900 is preferably a waterproof heat dissipation membrane, such as a PVC membrane or PP membrane. Since the back material of the flexible component 300 is not completely waterproof, a waterproof membrane 900 is placed between the flexible component 300 and the buffer pad 200 to prevent water seepage from the back of the flexible component 300, thereby ensuring the safe use of the flexible component 300 and extending its service life. Furthermore, with the waterproof membrane 900, the thickness of the waterproof membrane 900 is significantly reduced compared to the pipe wall, which facilitates heat transfer. The use of a waterproof heat dissipation membrane 900 further improves the heat exchange efficiency, thereby improving the cooling effect on the flexible component 300.

[0068] like Figures 14-16 As shown, this is the second embodiment of the hail-resistant flexible photovoltaic power generation device of the present invention. The difference from the first embodiment is that baffles 110 are fixed at both ends of the water tank 102, the inner wall of the water tank 102 and the baffles 110 enclose a water storage space, and the water tank 102 is connected to a water supply pipe 120.

[0069] Specifically, a water supply pipe 120 is installed below the corrugated steel sheet 100. The water supply pipe 120 extends parallel to the width of the corrugated steel sheet 100 and is used to connect to a water source. Multiple connecting pipes 140 are installed on the water supply pipe 120 along its length. The lumen of the connecting pipe 140 is connected to the lumen of the water supply pipe 120. The number of connecting pipes 140 is equal to the number of water troughs 102 on the corrugated steel sheet 100 and corresponds one-to-one. Each end of each water trough 102 of the corrugated steel sheet 100 is fixed with a baffle 110. The baffle 110 is welded and fixed to the inner wall of the water trough 102, so that the water trough 102 and the baffle 110 enclose a water storage space. A through-hole-shaped interface 1021 is provided on the bottom wall of the water trough 102. The end of the connecting pipe 140 away from the water supply pipe 120 is connected to the water trough 102 through the interface 1021.

[0070] With the above structure, the baffle 110 prevents the water in the tank 102 from flowing away, so that the baffle 110 and the tank 102 enclose a water storage space with a certain water storage capacity. The water in the tank 102 mainly comes from two parts: first, water from a water source flows into the water supply pipe 120 and enters each tank 102 through the connecting pipe 140; second, water from natural rainfall and precipitation falls into the water storage space. By storing water in the water storage space, the water in the tank 102 is continuously absorbed by the sponge pad and used for heat exchange with the flexible module 300 above the sponge pad, thereby achieving the technical effect of cooling the flexible module 300 and improving the photovoltaic power generation efficiency.

[0071] A further improvement is that a one-way valve 130 is installed on the water supply pipe 120. The outlet of the one-way valve 130 is located between the inlet of the one-way valve 130 and the water tank 102. By installing the one-way valve 130 on the water supply pipe 120, the flow direction of water in the water supply pipe 120 and the connecting pipe 140 is restricted, preventing water in the water storage space from flowing out through the connecting pipe 140 and the water supply pipe 120 in sequence. In this way, the water storage capacity of the water storage space is enhanced, so that the water absorption part 203 of the sponge pad can contact the water flow at the bottom of the water tank 102. The water flows continuously upward along the water absorption part 203 and contacts the flexible component 300 above the sponge pad for heat exchange, thereby improving the photovoltaic power generation efficiency.

[0072] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A hail-resistant flexible photovoltaic power generation device, characterized in that, include: Color steel sheet (100), said color steel sheet (100) is laid on the top of the building; Buffer pad (200), wherein the buffer pad (200) is an elastic pad laid on the color steel sheet (100); A flexible photovoltaic structure is laid on the buffer pad (200). The flexible structure includes a plurality of flexible components (300) distributed along the width direction of the color steel tile (100), with adjacent flexible components (300) in contact with each other. The limiting mechanism includes two clamping strips (800) arranged side by side along the width direction of the corrugated steel sheet (100) and two limiting components respectively disposed on both sides of the flexible photovoltaic mechanism. The flexible photovoltaic mechanism is clamped between the two clamping strips (800). Each of the two limiting components includes limiting units spaced apart along the width direction of the corrugated steel sheet (100). In each limiting component, two adjacent limiting units are respectively disposed at both ends of one side of the flexible component (300). The limiting unit includes a folding plate (400) fixedly connected to the corrugated steel sheet (100). The folding plate (400) includes a limiting horizontal plate (401) and a limiting vertical plate (4012) fixedly connected vertically. The limiting horizontal plate (401) is horizontally disposed and fits against the front of the flexible component (300). The limiting vertical plate (4012) is vertically disposed and fits against one side of the flexible component (300). The corrugated steel sheet (100) is also integrally formed with a water trough (102) with the groove opening facing upward. The buffer pad (200) is a sponge pad. The buffer pad (200) also includes a water-absorbing part (203) that extends downward and is fitted with the gap at the bottom of the water trough (102). A waterproof membrane (900) is provided between the buffer pad (200) and the flexible component (300), and the waterproof membrane (900) covers the buffer pad (200). The water tank (102) is fixed with baffles (110) at both ends. The inner wall of the water tank (102) and the baffles (110) enclose a water storage space. The water tank (102) is connected to a water supply pipe (120). The flexible components are stacked and connected to the sponge pad.

2. The hail-resistant flexible photovoltaic power generation device according to claim 1, characterized in that: The color steel tile (100) has an integrally formed mounting groove (101) with the groove opening facing upward. The mounting groove (101) corresponds one-to-one with the limiting unit in the two limiting components. The inner wall of the mounting groove (101) is provided with a protrusion (1011) with a gap between it and the bottom of the groove. The folding plate (400) includes a fixed horizontal plate (403) fixedly connected to the limiting vertical plate (4012). The fixed horizontal plate (403) is provided with a threaded bolt (500) and a nut (600). The nut (600) abuts against the top surface of the fixed horizontal plate (403). The bolt (500) is set upward and its head abuts against the protrusion (1011).

3. The hail-resistant flexible photovoltaic power generation device according to claim 2, characterized in that: The folding plate (400) slides along the length of the color steel tile (100) on the assembly groove (101).

4. The hail-resistant flexible photovoltaic power generation device according to claim 1, characterized in that: The limiting plate (401) is provided with an elastic seal (700) on the side adjacent to the flexible component (300).

5. The hail-resistant flexible photovoltaic power generation device according to claim 2, characterized in that: The two clamping strips (800) correspond to and slide with the two mounting slots (101) respectively. Each of the two clamping strips (800) includes an integrally connected sliding part (801) and clamping part (802). The sliding part (801) is housed in the mounting slot (101) corresponding to the clamping strip (800) and is slidably connected to the mounting slot (101). The clamping part (802) protrudes out of the mounting slot (101) and fits against the flexible photovoltaic mechanism.

6. The hail-resistant flexible photovoltaic power generation device according to claim 1, characterized in that: Both of the clamping strips (800) are clamped between the two limiting components.

7. The hail-resistant flexible photovoltaic power generation device according to claim 2, characterized in that: The buffer pad (200) includes a buffer section (201) and two insertion sections (202) respectively disposed at both ends of the buffer section (201) and extending downward. The two insertion sections (202) respectively fit against the inner sidewalls of two of the mounting slots (101).

Images