Photovoltaic support counterweight adjusting device

Abstract

The utility model discloses a counterweight adjusting device for a photovoltaic support. The device comprises a control module and a counterweight adjusting module, the counterweight adjusting module comprises a curtain rolling machine and a curtain; the curtain rolling machine is arranged on the edge of the photovoltaic support. The curtain is provided with a cavity, a water inlet and a water outlet, and the water inlet and the water outlet are both communicated with the cavity; the curtain is wound on the periphery of the curtain rolling machine; the curtain rolling machine is in communication connection with the control module. According to the embodiment of the invention, the curtain rolling machine and the curtain are arranged on the photovoltaic support, and the curtain is unfolded and put down and is filled with water in the strong wind weather, so that the balance weight of the photovoltaic support is increased, and the risk that the photovoltaic module is wholly turned over in the extreme weather such as the strong wind is effectively reduced.

Description

Technical Field

[0001] This application relates to the field of photovoltaic technology, and in particular to a photovoltaic support counterweight adjustment device. Background Technology

[0002] With the development of energy, photovoltaic power generation, as a major form of energy development, has seen rapid development of residential photovoltaic power generation systems installed on building rooftops. This not only brings benefits to residents but also has a positive social effect on local power development.

[0003] A serious problem currently facing residential solar power systems is that the solar modules and mounting systems must withstand forces exceeding their design specifications during extreme weather conditions such as strong winds. In extreme weather events like strong winds and typhoons, solar modules may be completely overturned, causing severe property damage to residents. Utility Model Content

[0004] This application provides a photovoltaic support counterweight adjustment device to solve the problem of photovoltaic modules being overturned in extreme weather conditions such as strong winds, causing serious property damage.

[0005] According to one aspect of this application, a photovoltaic support counterweight adjustment device is provided, comprising: a control module and a counterweight adjustment module;

[0006] The counterweight adjustment module includes a roller shutter machine and a curtain; the roller shutter machine is located on the edge of the photovoltaic support; the curtain has a cavity, a water inlet and a drain outlet, and the water inlet and the drain outlet are both connected to the cavity; the curtain is rolled up around the periphery of the roller shutter machine.

[0007] The rolling shutter machine is communicatively connected to the control module.

[0008] Optionally, the roller shutter machine includes a roller shaft and a roller shutter machine motor;

[0009] The rolling shaft is rotatably connected to the edge of the photovoltaic bracket, and one end of the curtain is fixed around the rolling shaft; along the axial direction of the rolling shaft, the curtain motor is located at at least one end of the rolling shaft to drive the rolling shaft to roll up and down the curtain.

[0010] Optionally, the curtain comprises two single-layer waterproof fabrics, and the edges of the two single-layer waterproof fabrics are spliced ​​together to form a cavity.

[0011] Optionally, the surface of the curtain includes multiple first seams arranged in parallel at equal intervals and multiple second seams arranged in parallel at equal intervals;

[0012] The first seam and the second seam are perpendicular to each other to divide the curtain into a plurality of arrayed grid cavities; at least some of the adjacent grid cavities are interconnected.

[0013] Optionally, along the length of the curtain, the mesh cavity includes multiple rows of mesh cavities, and adjacent mesh cavities in each row of mesh cavities are interconnected; along the width of the curtain, the mesh cavity includes multiple columns of mesh cavities, and adjacent mesh cavities in the columns of mesh cavities near the edge are partially interconnected.

[0014] The curtain also includes a water injection hose; one end of the water injection hose is connected to the water inlet, and the other end of the water injection hose extends to the highest grid cavity in the grid cavity row near the water inlet.

[0015] Optionally, the counterweight adjustment module further includes an inlet control valve and a drain control valve;

[0016] The water inlet control valve is located at the water inlet, and the water outlet control valve is located at the water outlet.

[0017] The inlet control valve and the outlet control valve are respectively connected to the control module for communication.

[0018] Optionally, the counterweight adjustment module further includes a guide column and a roller shutter guide slider;

[0019] The guide column is disposed between the roller shutters on adjacent sides of the photovoltaic bracket and is fixed to the roller shutters;

[0020] The guide post extends along the direction of curtain release, and the roller blind guide slider is slidably connected to the guide post;

[0021] The end of the curtain is fixedly connected to the roller blind guide slider on the side closest to the roller blind guide slider.

[0022] Optionally, between the rolling shutters located on adjacent sides of the photovoltaic bracket, the number of guide columns includes one;

[0023] The curtains located on both sides of the photovoltaic support are fixedly connected to the same roller blind guide sliders on the guide columns.

[0024] or,

[0025] Between the roller shutters arranged on adjacent sides of the photovoltaic bracket, there are two guide columns, and each guide column is provided with a roller shutter guide slider.

[0026] The curtains located on adjacent sides of the photovoltaic bracket are fixedly connected to the corresponding nearby roller shutter guide sliders.

[0027] Optionally, the photovoltaic support counterweight adjustment device also includes a wind speed sensor and an Internet of Things (IoT) module;

[0028] The wind speed sensor is installed on the roof platform to monitor real-time wind speed information;

[0029] The wind speed sensor and the Internet of Things (IoT) module are respectively connected to the control module. The IoT module is used to send wind speed prediction information according to the weather forecast and upload the status information of the counterweight adjustment module.

[0030] Optionally, the IoT module includes a human-computer interaction unit, a cloud server, and a 4G module;

[0031] The cloud server and the 4G module are communicatively connected between the human-machine interaction unit and the control module; the cloud server and the 4G module are used to send the wind speed prediction information to the control module and upload the status information of the counterweight adjustment module to the human-machine interaction unit.

[0032] This application provides a photovoltaic (PV) bracket counterweight adjustment device. The counterweight adjustment module includes a roller shutter machine and a curtain. The roller shutter machine is located on the edge of the PV bracket, and the curtain is rolled around the periphery of the roller shutter machine. The roller shutter machine can control the curtain to unfold and hang down naturally when it receives a corresponding control signal. The curtain has a cavity, a water inlet, and a drain outlet. Water can be filled into the cavity through the water inlet to increase the counterweight of the PV bracket by increasing the weight of the curtain. The roller shutter machine is communicatively connected to the control module. When the wind speed exceeds a wind speed threshold, the control module sends a control signal to the roller shutter machine to control the curtain to fall and inject tap water into the cavity of the curtain to increase the counterweight of the PV bracket. Furthermore, at the corresponding edge of the PV array unit, the curtain, after being filled with water and hanging down naturally, can seal the gap between the tilted PV array unit and the roof platform, acting as a wall to change the wind direction and path of strong winds, thereby isolating the impact of strong winds on the PV module structure and effectively reducing the risk of the PV modules being completely overturned in extreme weather conditions such as strong winds.

[0033] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of this application, nor is it intended to limit the scope of this application. Other features of this application will become readily apparent from the following description. Attached Figure Description

[0034] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0035] Figure 1 This is a schematic diagram of the structure of a photovoltaic support counterweight adjustment device according to an embodiment of this application;

[0036] Figure 2 This is a cross-sectional structural schematic diagram of a curtain according to an embodiment of this application;

[0037] Figure 3 This is a diagram showing the state of a curtain when it is retracted, according to an embodiment of this application.

[0038] Figure 4 This is a diagram showing the state of a curtain when it is lowered, according to an embodiment of this application.

[0039] Figure 5 yes Figure 4 A magnified view of the area within the dashed box;

[0040] Figure 6 yes Figure 5 A magnified view of the area within the dashed box;

[0041] Figure 7 This is a front view structural diagram of a curtain according to an embodiment of this application;

[0042] Figure 8 yes Figure 5 A magnified view of the solid line frame portion;

[0043] Figure 9 This is a schematic diagram of the logic control structure of a photovoltaic support counterweight adjustment device according to an embodiment of this application;

[0044] Figure 10 This is a schematic diagram of a water filling control logic flow according to an embodiment of this application. Detailed Implementation

[0045] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0046] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0047] As described in the background section, distributed photovoltaic power generation systems installed on the rooftops of buildings such as industrial parks, factories, schools, and stations have developed rapidly. In particular, in recent years, residential photovoltaic systems installed on the rooftops of residential buildings and related structures have not only brought benefits to residents but also played a positive social role in local power development.

[0048] The serious problem facing residential photovoltaic systems is that the photovoltaic modules and brackets need to withstand stresses exceeding their design limits under extreme weather conditions such as strong winds. When the stress on the support rods and inclined beams of the installed modules exceeds the limits, strong winds can overturn the entire module, causing serious property damage to residents. How to prevent photovoltaic modules from being damaged by strong winds in extreme weather conditions such as strong winds is a serious challenge currently facing photovoltaic manufacturers and distributors.

[0049] Based on the above-mentioned technical problems, the embodiments of this application propose the following technical solutions:

[0050] This application provides a photovoltaic support counterweight adjustment device. Figure 1 This is a schematic diagram of the structure of a photovoltaic support counterweight adjustment device provided in an embodiment of this application. Figure 2 This is a cross-sectional structural diagram of a curtain provided in an embodiment of this application. Combined with... Figure 1 and Figure 2 The photovoltaic support counterweight adjustment device includes a control module and a counterweight adjustment module 200.

[0051] The counterweight adjustment module 200 includes a roller shutter machine 201 and a curtain 202; the roller shutter machine 201 is located on the edge of the photovoltaic support; the curtain 202 is provided with a cavity, a water inlet 272 and a drain outlet 282, and the water inlet 272 and the drain outlet 282 are both connected to the cavity; the curtain 202 is rolled around the periphery of the roller shutter machine 201; the roller shutter machine 201 is communicatively connected to the control module.

[0052] Specifically, this photovoltaic support counterweight adjustment device is applicable to photovoltaic power generation systems installed on the rooftop platform of a building. The supports, inclined beams, and columns in the photovoltaic power generation system fix the photovoltaic array units to the rooftop platform at a certain tilt angle. Each photovoltaic array unit comprises multiple arrayed photovoltaic modules, which are mounted and fixed on the photovoltaic support. Each photovoltaic array unit includes two sets of opposing edges; from a side view, the side edges of the photovoltaic array unit form a right-angled triangle with the rooftop platform, supports, and columns. The roller shutter 201 in the counterweight adjustment module 200 is mounted on the photovoltaic support, and a curtain 202 is wound around the roller shutter 201. The position of the roller shutter 201 on the photovoltaic support corresponds to the edge of the photovoltaic array unit. The curtain 202 can be opened and closed under the control of the roller shutter 201, allowing it to hang naturally below the roller shutter 201 to cover the gap between the corresponding edge of the photovoltaic array unit and the rooftop platform; the curtain 202 can also be rolled up and retracted under the control of the roller shutter 201.

[0053] See Figure 2 The curtain 202 has an internal cavity with a water inlet 272 and a drain outlet 282. A certain amount of water can be filled into the cavity through the water inlet 272 to increase the weight of the curtain 202 when it is lowered; and the water can be drained from the cavity through the drain outlet 282 to reduce the weight of the curtain 202 and allow it to be rolled up. This water-fillable curtain 202 design is low-cost, economical, and highly practical.

[0054] The control module can be installed in an outdoor cabinet or inside a building; there are no restrictions on this. Figure 1The location of the control module is not shown. The roller shutter 201 is communicatively connected to the control module and can control the curtain 202 to be lowered or rolled up by receiving signals from the control module. Specifically, the control module can compare the acquired wind speed data with a preset wind speed threshold. When the wind speed data exceeds the wind speed threshold, it indicates that the current weather conditions are indicative of extreme weather such as strong winds or typhoons, and there is a risk that the photovoltaic modules in the photovoltaic array unit may be completely overturned. The wind speed threshold can be set by the user according to the actual size of the photovoltaic modules and their wind resistance capacity, and is not restricted here. At this time, the control module can send a control signal to the roller shutter 201 to make the roller shutter 201 rotate and lower the curtain 202. Simultaneously, tap water is injected into the curtain 202, allowing the water to enter the cavity and increase the weight of the curtain 202, thereby increasing the counterweight of the photovoltaic support. After being filled with water, the curtain 202 hangs down naturally, which can seal the gap between the corresponding edge of the photovoltaic array unit and the roof platform, acting as a wall. This can block strong winds to a certain extent, change the wind direction and path, and prevent strong winds from blowing through the gap between the photovoltaic array unit and the roof platform as much as possible. This can isolate the impact of strong winds on the structure of the photovoltaic modules and effectively reduce the risk of the photovoltaic modules being overturned in extreme weather conditions such as strong winds.

[0055] It should be noted that when the control module controls the roller shutter machine 201 to lower the curtain 202, the weight of the tap water injected into the curtain 202 is the counterweight added to the photovoltaic bracket. This counterweight can be set by the user according to the actual weather conditions and the scale of the photovoltaic modules, so as to achieve the effect of self-adjustment of the counterweight of the photovoltaic bracket. There are no restrictions here.

[0056] This application provides a photovoltaic (PV) bracket counterweight adjustment device. The counterweight adjustment module includes a roller shutter machine and a curtain. The roller shutter machine is located on the edge of the PV bracket, and the curtain is rolled around the periphery of the roller shutter machine. The roller shutter machine can control the curtain to unfold and hang down naturally when it receives a corresponding control signal. The curtain has a cavity, a water inlet, and a drain outlet. Water can be filled into the cavity through the water inlet to increase the counterweight of the PV bracket by increasing the weight of the curtain. The roller shutter machine is communicatively connected to the control module. When the wind speed exceeds a wind speed threshold, the control module sends a control signal to the roller shutter machine to control the curtain to fall and inject tap water into the cavity of the curtain to increase the counterweight of the PV bracket. Furthermore, at the corresponding edge of the PV array unit, the curtain, after being filled with water and hanging down naturally, can seal the gap between the tilted PV array unit and the roof platform, acting as a wall to change the wind direction and path of strong winds, thereby isolating the impact of strong winds on the PV module structure and effectively reducing the risk of the PV modules being completely overturned in extreme weather conditions such as strong winds.

[0057] Based on the above embodiments, see below. Figure 1For example, in practical applications, to ensure the safety and reliability of photovoltaic modules in extreme weather conditions, for photovoltaic array units that are installed at an angle with their lower ends against the roof surface, roller shutters 201 can be installed at corresponding positions on the photovoltaic support at two opposite side edges and the upper edge along the angle direction of the photovoltaic array unit. That is, on three sides where there is a gap between the photovoltaic array unit and the roof surface, roller shutters 201 are installed on the photovoltaic support at positions corresponding to the edges of the photovoltaic array unit, and curtains 202 are wound around the roller shutters 201. For example, Figure 3 This is a diagram illustrating the state of a curtain when it is retracted, as provided in an embodiment of this application. Figure 4 This is a diagram illustrating the state of a curtain when it is lowered, as provided in an embodiment of this application. See also... Figure 3 and Figure 4 , Figure 3 and Figure 4 The diagram shows the installation of the roller shutter 201 and curtain 202 on the photovoltaic support corresponding to the two opposite side edges and the upper edge along the inclined direction of the photovoltaic array unit. When the control module detects wind speed exceeding the wind speed threshold, see [link to relevant documentation]. Figure 4 The control module rotates the three-sided roller shutter 201 to lower the curtain 202 and fill it with water. The water-filled curtain 202 seals the three-sided gaps between the photovoltaic array unit and the roof platform, thereby increasing the weight of the photovoltaic modules and changing the path of strong winds. This prevents strong winds from blowing through the gaps between the photovoltaic array unit and the roof platform, reducing the risk of the photovoltaic modules being completely overturned in extreme weather. When the control module determines that the wind speed is less than the wind speed threshold, i.e., after the strong winds and other extreme weather have passed, see [link to relevant documentation]. Figure 3 The control module sends a corresponding control signal to the roller shutter machine 201 to drain the water filling the curtain 202, and then the roller shutter machine 201 rotates to roll up the curtain 202, thereby meeting the needs of residents on the roof platform where the photovoltaic modules are installed, as well as the needs of ventilation and cooling of the photovoltaic modules.

[0058] For tilted photovoltaic array units with a certain gap between their lower end and the roof surface, the roller shutter 201 can be installed not only at the edges of two opposite sides of the photovoltaic array unit and at the upper edge along the tilt direction corresponding to the photovoltaic support, but also at the position corresponding to the lower edge along the tilt direction of the photovoltaic support. That is, roller shutter 201 and rolled-up curtains 202 are installed at the four edges of the photovoltaic array unit at the positions corresponding to the photovoltaic support. When the wind speed exceeds the wind speed threshold, the control module can control the roller shutter 201 of the corresponding edge to rotate, unfold the corresponding curtain 202 and fill it with water according to the wind direction; or control all roller shutter 201 to rotate, unfold the curtains 202 on all four sides of the photovoltaic array unit and fill them with water, so as to increase the counterweight of the photovoltaic support, and block the gap between the photovoltaic array unit and the roof surface by the lowered curtains 202, thereby isolating the impact of strong winds on the photovoltaic module structure and effectively protecting the photovoltaic module structure from damage caused by strong winds and other extreme weather.

[0059] Based on the above embodiments, Figure 5 yes Figure 4 A magnified view of the area within the dashed box. Figure 6 yes Figure 5 A magnified view of the area within the dashed box. See also... Figure 5 and Figure 6 Optionally, the roller shutter machine 201 includes a roller shaft 211 and a roller shutter machine motor 221.

[0060] The roller shaft 211 is rotatably connected to the edge of the photovoltaic bracket, and one end of the curtain 202 is fixed around the roller shaft 211. Along the axial direction of the roller shaft 211, the roller shutter motor 221 is provided at least one end of the roller shaft 211 to drive the roller shaft 211 to roll up and down the curtain 202.

[0061] Specifically, the roller shutter machine 201 has its roller shaft 211 arranged parallel to the corresponding edge of the photovoltaic array unit. The roller shaft 211 is cylindrical and fixed to the edge of the photovoltaic bracket, allowing it to rotate on its own. One edge of the curtain 202 is fixed to the roller shaft 211, so that when the roller shaft 211 rotates, it can cause the curtain 202 to roll around the outer periphery of the roller shaft 211. The roller shutter motor 221 is located at the center of the end face of the roller shaft 211. The roller shutter motor 221 can receive corresponding signals sent by the control module and drive the roller shaft 211 to rotate. When the wind speed exceeds the wind speed threshold, the roller shaft 211 is driven to rotate to unfold and lower the curtain 202, thereby increasing the counterweight of the photovoltaic support and blocking the gap between the photovoltaic array unit and the roof platform, thus changing the impact of strong wind on the photovoltaic module structure. Alternatively, when the wind speed is less than the wind speed threshold, the roller shutter motor 221 drives the roller shaft 211 to rotate to roll up the curtain 202, thereby ensuring the needs of residents on the roof platform where the photovoltaic modules are installed, as well as the needs of ventilation and cooling of the photovoltaic modules.

[0062] Based on the above embodiments, see below. Figure 2 Optionally, the curtain 202 includes two single-layer waterproof fabrics, and the edges of the two single-layer waterproof fabrics are spliced ​​together to form a cavity.

[0063] Specifically, the edges of two single-layer waterproof fabrics are spliced ​​together to create a cavity between them, which can be filled with water to increase the counterweight of the photovoltaic support. For example, the waterproof fabric can be waterproof Oxford cloth or waterproof canvas, and there is no limitation thereto.

[0064] Based on the above embodiments, Figure 7 This is a front view structural diagram of a curtain provided in an embodiment of this application. See also... Figure 7 Optionally, the surface of the curtain 202 includes multiple equidistant parallel first seams 212 and multiple equidistant parallel second seams 222.

[0065] The first seam 212 and the second seam 222 are perpendicular to each other to divide the curtain 202 into multiple arrayed grid cavities 232; at least some of the adjacent grid cavities 232 are interconnected.

[0066] Specifically, in a complete curtain 202, two opposing single-layer waterproof fabrics may include a first seam 212 and a second seam 222 arranged equidistantly and parallelly. The positions of the first seam 212 and the second seam 222 on the two single-layer waterproof fabrics correspond one-to-one. The two single-layer waterproof fabrics can be spliced ​​at the seam positions, thereby dividing the internal space of the complete curtain 202 into multiple discrete arrayed grid cavities 232. The adjacent grid cavities 232 are interconnected, allowing water to be filled into each grid cavity 232 on the surface of the curtain 202. This ensures that the filled water is evenly distributed throughout the curtain 202, preventing water from accumulating in one location and causing damage to the curtain 202.

[0067] Based on the above embodiments, see below. Figure 7 Optionally, along the length of the curtain 202, the grid cavity 232 includes multiple grid cavity rows, in which adjacent grid cavities 232 are interconnected; along the width of the curtain 202, the grid cavity 232 includes multiple grid cavity columns, in which adjacent grid cavities 232 are partially interconnected near the edge.

[0068] The curtain 202 also includes a water injection hose 262; one end of the water injection hose 262 is connected to the water inlet 272, and the other end of the water injection hose 262 extends to the highest grid cavity 232 in the grid cavity row near the water inlet 272.

[0069] Specifically, the water inlet 272 and the drain outlet 282 can be located on the same side of the curtain 202, and the grid cavity 232 connected to the water inlet 272 and the grid cavity 232 connected to the drain outlet 282 are not connected. That is, in the grid cavity row on the side where the water inlet 272 and the drain outlet 282 are located, the adjacent grid cavities 232 above the drain outlet 282 are interconnected, but not connected to the grid cavities 232 below the drain outlet 282. In other words, the grid cavities 232 above the drain outlet 282 are separated from the grid cavities 232 below the drain outlet 282. Furthermore, when the curtain 202 is in the unfolded state, the water injection hose 262 extends from the water inlet 272 to the highest grid cavity 232, injecting water downwards from the highest point, so that water is injected into each grid cavity 232 and evenly distributed throughout the entire curtain 202. During drainage, the water in each grid cavity 232 flows to the side opposite to the inlet 272, flows through the corresponding drainage channel to the bottom of the curtain 202, and flows out through the drain outlet 282.

[0070] Based on the above embodiments, see below. Figure 7 Optionally, the counterweight adjustment module 200 also includes an inlet control valve 203 and a drain control valve 204.

[0071] The inlet control valve 203 is located at the inlet 272, and the drain control valve 204 is located at the drain outlet 282; the inlet control valve 203 and the drain control valve 204 are respectively connected to the control module for communication.

[0072] Specifically, the water inlet control valve 203 is installed on the water inlet pipe connected to the water inlet 272, and the drain control valve 204 is installed on the drain pipe connected to the drain outlet 282. Exemplarily, the water inlet control valve 203 and the drain control valve 204 can be water inlet solenoid valves and drain solenoid valves, respectively, without limitation. The control module can control the opening and closing of the water inlet control valve 203 and the drain control valve 204, thereby controlling the injection of water into the curtain 202 or the drainage of water from the curtain 202. For example, when the wind speed exceeds the wind speed threshold, the control module can control the water inlet control valve 203 to open and the drainage control valve 204 to close, thereby filling the curtain 202 with water and increasing the counterweight of the photovoltaic support. The control module can also control the water inlet control valve 203 to close and the drainage control valve 204 to open when the wind speed is less than the wind speed threshold, thereby draining the curtain 202. After draining, the control module can control the roller shutter 201 to roll up the curtain 202 to meet the needs of residents on the rooftop platform where the photovoltaic modules are installed, as well as the needs of ventilation and cooling of the photovoltaic modules.

[0073] Based on the above embodiments, Figure 8 yes Figure 5A magnified view of the area enclosed within the solid-lined frame. See also... Figure 5 and Figure 8 Optionally, the counterweight adjustment module 200 also includes a guide post 205 and a roller shutter guide slider 206.

[0074] The guide column 205 is disposed between the roller shutter machines 201 on both sides of the photovoltaic bracket and is fixed to the roller shutter machines 201; the guide column 205 extends along the release direction of the curtain 202, and the roller shutter guide slider 206 is slidably connected to the guide column 205; the end of the curtain 202 is fixedly connected to the roller shutter guide slider 206 on the side near the roller shutter guide slider 206.

[0075] Specifically, guide posts 205, positioned between two adjacent roller blinds 201, stand on the roof platform along the release direction of the curtain 202. These posts fix and support the roller blinds 201, reducing the weight burden on the photovoltaic support structure and enhancing their reliability. The release direction of the curtain 202 is the direction in which it unfolds and lowers. For example, the guide posts 205 can be cylindrical columns perpendicular to the roof platform; this is not a limitation. The end of the curtain 202 is connected to a roller blind guide slider 206. This allows the curtain 202 to be rolled up or released as the guide slider 206 slides freely on the guide posts 205. Furthermore, fixing the end of the curtain 202 to the guide slider 206 prevents significant swaying in strong winds after the curtain 202 is lowered and filled with water, effectively preventing strong winds from entering the gap between the photovoltaic array unit and the roof surface.

[0076] For example, the connection between the curtain 202 and the roller blind guide slider 206 can be achieved through a rotating shaft 207 and a retaining ring 208. Specifically, a rotating shaft 207 is provided on the side of the roller blind guide slider 206, wherein the rotating shaft 207 includes a cylindrical shaft with a diameter smaller than that of the guide post 205. A retaining ring 208 is provided at the top corner of each end of the curtain 202 after it is unfolded. The retaining ring 208 is a hollow ring protruding from the edge of the curtain 202. The fixing ring 208 can be fitted onto the outside of the rotating shaft 207 on the edge of the roller shutter guide slider 206 to fix the curtain 202 to the roller shutter guide slider 206. Thus, when the roller shutter guide slider 206 slides on the guide post 205, it can simultaneously drive the corresponding curtain 202 to unfold. This ensures that when the roller shutter machine 201 receives the control signal to control the curtain 202 to lower, the curtain 202 will not sway due to strong winds and can be stably fixed on the guide post 205. This is beneficial to improving the protection effect of the water-filled curtain 202 on the photovoltaic modules under extreme weather conditions.

[0077] Based on the above embodiments, see below. Figure 5 and Figure 8Optionally, between the roller shutter machines 201 arranged on adjacent sides of the photovoltaic bracket, the number of guide posts 205 includes one; the curtains 202 arranged on adjacent sides of the photovoltaic bracket are all fixedly connected to the same roller shutter guide sliders 206 on the guide posts 205; or, between the roller shutter machines 201 arranged on adjacent sides of the photovoltaic bracket, the number of guide posts 205 includes two, and each guide post 205 is respectively provided with a roller shutter guide slider 206. The curtains 202 arranged on adjacent sides of the photovoltaic bracket are respectively fixedly connected to the corresponding adjacent roller shutter guide sliders 206.

[0078] Specifically, see Figure 8 For the roller shutter machines 201 on adjacent sides, a guide post 205 can be set, and only one roller shutter guide slider 206 is set on the guide post 205. The curtains 202 rolled up by the roller shutter machines 201 on adjacent sides are fixed to the rotation shaft 207 of the same roller shutter guide slider 206 by fixing rings 208. Therefore, the curtains 202 on adjacent sides can only slide simultaneously with the roller shutter guide slider 206. That is to say, when the control module controls the curtains 202 to be lowered, the curtains 202 on the adjacent sides of the same guide post 205 need to be lowered and filled with water at the same time to increase the counterweight of the photovoltaic support and resist the impact of extreme weather such as strong winds.

[0079] In addition, for the roller shutter machines 201 on adjacent side edges, two guide posts 205 can also be set, with only one roller shutter guide slider 206 set on each guide post 205. This situation is... Figure 8 (Not shown in the image). The curtains 202 on adjacent side edges are fixed to the rotating shafts 207 on the side of the roller shutter guide sliders 206 on the adjacent guide posts 205 via fixing rings 208. That is, the curtains 202 on adjacent side edges can move independently under the control of different roller shutter guide sliders 206. In other words, when the control module controls the curtains 202 to be lowered, the curtains 202 on adjacent side edges can be lowered or rolled up independently, without having to lower all curtains 202 at the same time. Therefore, the photovoltaic bracket counterweight adjustment device provided in this application embodiment can control the roller shutter machine 201 corresponding to the corresponding direction to lower the curtains 202 and fill them with water according to real-time wind speed and wind direction information, thereby acting as a wall, changing the wind direction of strong winds, and improving the stability of photovoltaic modules under extreme weather conditions such as strong winds.

[0080] Based on the above embodiments, Figure 9 This is a schematic diagram of the logic control structure of a photovoltaic support counterweight adjustment device provided in an embodiment of this application. See also... Figure 1 and Figure 9 Optionally, the photovoltaic support counterweight adjustment device also includes a wind speed sensor 300 and an Internet of Things module 400.

[0081] The wind speed sensor 300 is installed on the roof platform to monitor real-time wind speed information. The wind speed sensor 300 and the Internet of Things (IoT) module 400 are respectively connected to the control module 100. The IoT module 400 is used to send wind speed prediction information according to the weather forecast and upload the status information of the counterweight adjustment module 200.

[0082] Specifically, the control module 100 may include a microcontroller unit (MCU). The wind speed sensor 300 monitors wind speed in real time and generates real-time wind speed information, which is then transmitted to the control module 100 in real time. The Internet of Things (IoT) module 400 can obtain wind speed forecast information from real-time weather forecasts and send this forecast information to the control module 100, enabling the control module 100 to determine whether strong winds or other extreme weather conditions will occur based on the real-time wind speed information and the wind speed forecast information. Simultaneously, the counterweight adjustment module 200 can also upload its status information to the IoT module 400 through the control module 100 to achieve remote human-machine interaction. In summary, the control module 100, as the microprocessor of the photovoltaic support counterweight adjustment device, can collect and forward wind speed data, receive and process cloud data, and receive and process weather forecast data. It also controls the counterweight adjustment module 200 based on wind speed thresholds, thereby realizing the self-adjusting counterweight function of the photovoltaic support.

[0083] Based on the above embodiments, see below. Figure 9 Optionally, the Internet of Things module 400 includes a human-computer interaction unit 401, a cloud server 402, and a 4G module 403.

[0084] The cloud server 402 and the 4G module 403 are connected between the human-machine interaction unit 401 and the control module 100. The cloud server 402 and the 4G module 403 are used to send wind speed prediction information to the control module 100 and upload the status information of the counterweight adjustment module 200 to the human-machine interaction unit 401.

[0085] For example, the human-machine interaction unit 401 may include a mobile phone or computer app. Wind speed forecasts are transmitted to the control module 100 via the cloud server 402 and the 4G module 403, and the status information of the counterweight adjustment module 200 is uploaded to the human-machine interaction unit 401. This allows the user to remotely monitor the operating status of the counterweight adjustment module 200, enabling accurate control of the module before strong winds or other extreme weather events. This allows the curtain to be lowered and filled with water, increasing the counterweight of the photovoltaic support and thus isolating the photovoltaic module structure from the impact of strong winds, effectively protecting the photovoltaic modules from extreme weather damage.

[0086] Based on the above embodiments, Figure 10This is a schematic diagram of a water filling control logic flow provided in an embodiment of this application. See also... Figure 10 Optionally, the method for controlling the water filling of the curtain is executed by the control module in the photovoltaic support counterweight adjustment device, and the method for controlling the water filling of the curtain may specifically include the following steps:

[0087] S1. Collect real-time wind speed information and wind speed prediction information from weather forecasts;

[0088] S2. Compare the real-time wind speed information and wind speed prediction information with the wind speed threshold to determine whether the real-time wind speed information or wind speed prediction information exceeds the wind speed threshold; if yes, proceed to step S3; if no, proceed to step S1.

[0089] S3. Adjust the water filling amount of the curtain and fill it with water based on real-time wind speed information or wind speed prediction information that exceeds the wind speed threshold.

[0090] S4. Determine whether the real-time wind speed information or wind speed prediction information is less than the wind speed threshold; if yes, proceed to step S5; if no, proceed to step S3.

[0091] S5. Drain the curtain, release the counterweight of the curtain after it is filled with water, and retract the curtain to keep the photovoltaic modules ventilated and cooled.

[0092] The specific embodiments described above do not constitute a limitation on the scope of protection of this application. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A photovoltaic support counterweight adjustment device, characterized in that, include: Control module and counterweight adjustment module (200); The counterweight adjustment module (200) includes a roller shutter machine (201) and a curtain (202); the roller shutter machine (201) is located on the edge of the photovoltaic support; the curtain (202) is provided with a cavity, a water inlet (272) and a drain outlet (282), and the water inlet (272) and the drain outlet (282) are both connected to the cavity; the curtain (202) is rolled around the periphery of the roller shutter machine (201); The roller shutter machine (201) is communicatively connected to the control module.

2. The photovoltaic support counterweight adjustment device according to claim 1, characterized in that, The roller shutter machine (201) includes a roller shaft (211) and a roller shutter machine motor (221); The roller shaft (211) is rotatably connected to the edge of the photovoltaic bracket, and one end of the curtain (202) is fixed around the roller shaft (211); along the axial direction of the roller shaft (211), the roller shutter motor (221) is disposed at at least one end of the roller shaft (211) to drive the roller shaft (211) to roll up and down the curtain (202).

3. The photovoltaic support counterweight adjustment device according to claim 1, characterized in that, The curtain (202) comprises two single-layer waterproof fabrics, and the edges of the two single-layer waterproof fabrics are spliced ​​together to form a cavity.

4. The photovoltaic support counterweight adjustment device according to claim 3, characterized in that, The surface of the curtain (202) includes multiple first seams (212) arranged in parallel at equal intervals and multiple second seams (222) arranged in parallel at equal intervals; The first seam (212) and the second seam (222) are perpendicular to each other to divide the curtain (202) into a plurality of arrayed grid cavities (232); at least some of the adjacent grid cavities (232) are interconnected.

5. The photovoltaic support counterweight adjustment device according to claim 4, characterized in that, Along the length direction of the curtain (202), the mesh cavity (232) includes multiple mesh cavity rows, and adjacent mesh cavities (232) in each mesh cavity row are interconnected; along the width direction of the curtain (202), the mesh cavity (232) includes multiple mesh cavity columns, and adjacent mesh cavities (232) in the mesh cavity columns near the edge are partially interconnected; The curtain (202) also includes a water injection hose (262); one end of the water injection hose (262) is connected to the water inlet (272), and the other end of the water injection hose (262) extends to the highest grid cavity (232) in the grid cavity row near the water inlet (272).

6. The photovoltaic support counterweight adjustment device according to claim 1, characterized in that, The counterweight adjustment module (200) also includes an inlet control valve (203) and a drain control valve (204); The water inlet control valve (203) is located at the water inlet (272), and the water outlet control valve (204) is located at the water outlet (282); The inlet control valve (203) and the outlet control valve (204) are respectively connected to the control module for communication.

7. The photovoltaic support counterweight adjustment device according to claim 1, characterized in that, The counterweight adjustment module (200) also includes a guide post (205) and a roller shutter guide slider (206); The guide column (205) is disposed between the roller shutters (201) on adjacent sides of the photovoltaic bracket and is fixed to the roller shutters (201); The guide post (205) extends in the direction of release of the curtain (202), and the roller blind guide slider (206) is slidably connected to the guide post (205); The end of the curtain (202) is fixedly connected to the roller blind guide slider (206) on the side near the roller blind guide slider (206).

8. The photovoltaic support counterweight adjustment device according to claim 7, characterized in that, Between the roller shutters (201) arranged on adjacent sides of the photovoltaic bracket, the number of guide columns (205) includes one; The curtains (202) located on both sides of the photovoltaic bracket are fixedly connected to the same roller blind guide sliders (206); or, Between the roller shutter machines (201) arranged on adjacent sides of the photovoltaic bracket, there are two guide posts (205), and each guide post (205) is provided with a roller shutter guide slider (206); The curtains (202) located on adjacent sides of the photovoltaic bracket are fixedly connected to the corresponding nearby roller shutter guide sliders (206).

9. The photovoltaic support counterweight adjustment device according to claim 1, characterized in that, It also includes a wind speed sensor (300) and an Internet of Things (IoT) module (400); The wind speed sensor (300) is installed on the roof platform to monitor real-time wind speed information; The wind speed sensor (300) and the Internet of Things (IoT) module (400) are respectively connected to the control module. The IoT module (400) is used to send wind speed prediction information according to the weather forecast and upload the status information of the counterweight adjustment module (200).

10. The photovoltaic support counterweight adjustment device according to claim 9, characterized in that, The Internet of Things module (400) includes a human-computer interaction unit (401), a cloud server (402), and a 4G module (403); The cloud server (402) and the 4G module (403) are communicatively connected between the human-machine interaction unit (401) and the control module; the cloud server (402) and the 4G module (403) are used to send the wind speed prediction information to the control module and upload the status information of the counterweight adjustment module (200) to the human-machine interaction unit (401).

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