Solar irradiation detection system

Abstract

The utility model discloses a solar irradiation detection system. The solar irradiation detection system comprises an irradiation detection main body and an adjustable supporting structure, wherein the irradiation detection main body is detachably connected to the adjustable supporting structure; the irradiation detection main body comprises a protective shell with two open ends, a shading part mounted in the protective shell and at least one irradiation detection part; for one irradiation detection part, irradiation is detected through the first end opening of the protection shell, and the shading part shades light for one side, far away from the first end opening, of the irradiation detection part; for one irradiation detection part, irradiation is detected through the second end opening of the protection shell, and the shading part shades light for one side, far away from the second end opening, of the irradiation detection part; the adjustable supporting structure is used for adjusting the azimuth angle and the pitch angle of the irradiation detection body. The solar irradiation detection system has relatively good controllability and practicability.

Description

Technical Field

[0001] This utility model relates to a solar irradiation detection system. Background Technology

[0002] Photovoltaic (PV) power plants can use fixed supports to hold the PV modules in one orientation for solar energy absorption. Alternatively, they can use rotatable supports to adjust the module's orientation based on changes in solar irradiance. Regardless of the support method, a radiometer is generally needed to detect the angle of strongest or relatively strong irradiance in the area where the PV power plant is located. Based on this detected angle, the orientation and tilt angle of the PV modules are set or adjusted. However, existing radiometers typically use a fixed mounting device to measure the irradiance intensity facing the sunlight (i.e., the light-receiving surface of the PV module).

[0003] Existing irradiation meters cannot detect the irradiance intensity on the back surface of photovoltaic modules, resulting in poor detection accuracy. In addition, existing irradiation meters use a detection body fixed on a bracket, which has poor adjustability and practicality. Utility Model Content

[0004] In view of this, the present invention provides a solar irradiance detection system that can detect irradiance from both sides, effectively improving detection accuracy. Furthermore, the system can adjust the azimuth and elevation angles of the irradiance detection body via an adjustable support structure, enhancing its controllability and practicality.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] This utility model provides a solar irradiance detection system, comprising: an irradiance detection body and an adjustable support structure, wherein...

[0007] The irradiation detection body is mounted on the adjustable support structure;

[0008] The irradiation detection body includes: a protective shell with open ends, a light-shielding part installed inside the protective shell, and at least one irradiation detection part installed inside the protective shell;

[0009] For an irradiation detection unit to detect irradiation through the first end opening of the protective housing, the light-shielding part is the side of the irradiation detection unit away from the first end opening;

[0010] For an irradiation detection unit to detect irradiation through the second end opening of the protective housing, the light-shielding part is the side of the irradiation detection unit away from the second end opening;

[0011] The adjustable support structure is used to adjust the azimuth and pitch angles of the irradiation detection body.

[0012] The first aspect of the above-mentioned utility model has the following advantages or beneficial effects:

[0013] The solar irradiance detection system provided in this embodiment includes an irradiance detection unit with a protective shell open at both ends. At least one irradiance detection unit corresponds to each of the two openings, allowing it to detect irradiance from two opposite directions. This enables more accurate detection of irradiance on the front and back of the photovoltaic module, improving detection accuracy. Furthermore, by adjusting the azimuth and pitch angles of the irradiance detection unit using an adjustable support structure, the detection direction of the irradiance detection unit can be adjusted, enhancing the controllability and practicality of the solar irradiance detection system. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the first structure of the solar irradiation detection system provided according to an embodiment of the present utility model;

[0015] Figure 2 The present invention is applied to the embodiments provided by this utility model. Figure 1 A schematic cross-sectional view of the irradiation detection body of the first structure shown in the diagram;

[0016] Figure 3 This is a three-dimensional structural diagram of the second structure of the solar irradiation detection system provided according to an embodiment of the present utility model;

[0017] Figure 4 The present invention is applied to the embodiments provided by this utility model. Figure 3 A schematic diagram of the cross-sectional structure of the irradiation detection body in the second structure shown;

[0018] Figure 5 This is a three-dimensional structural diagram of the support portion in the adjustable support structure provided according to an embodiment of the present utility model;

[0019] Figure 6 This is a schematic diagram of the connection relationship between the base and the connecting part according to an embodiment of the present utility model.

[0020] The attached figures are labeled as follows:

[0021] 10-Irradiation detection main body; 11-Protective shell; 12-Irradiation detection unit; 121-Assembly; 122-Photogenerating device; 123-Detection device; 13-Shielding part; 131-First adjustable shielding component; 132-Second adjustable shielding component; 133-Fixed shielding component; 134-Third adjustable shielding component; 135-Fourth adjustable shielding component; 20-Adjustable support structure; 21-Base; 211-Groove; 22-Connecting part; 221-Rotary connecting structure; 222-Fixed lever; 23-Supporting part; 231-Arc-shaped support groove; 232-Support frame; 233-Drive shaft; 234-Drive wheel. Detailed Implementation

[0022] To effectively improve the light utilization rate and power generation efficiency of photovoltaic (PV) power plants or systems, in addition to enhancing the performance of the PV modules themselves, it is also necessary to ensure that solar irradiance reaches the PV modules to the maximum extent. Generally speaking, the solar azimuth and altitude angles determine the actual light-receiving area of ​​the PV module. When light is incident perpendicularly to the PV module, the light-receiving area is the largest, and the power generation is the highest. The greater the deviation from the perpendicular incident angle, the smaller the light-receiving area of ​​the PV module and the lower the power generation. Therefore, monitoring irradiance and recording and measuring the solar azimuth and altitude angles are equally important for improving the efficiency of PV modules.

[0023] Furthermore, on the one hand, solar radiation has a certain directionality after reaching the ground; on the other hand, the direction of solar radiation constantly changes with the passage of day, seasonal changes, and the influence of the surrounding environment (such as tall buildings and trees). Research has found that placing photovoltaic (PV) modules at a certain angle ensures that sunlight is incident on the modules perpendicularly to the maximum extent, maximizing the utilization of solar radiation. In particular, PV modules that continuously change direction in response to changes in solar radiation further enhance the utilization of solar radiation. Therefore, before setting up a PV power station or system (such as installing PV systems for streetlights or roadside communication systems), it is generally necessary to detect the solar radiation intensity in different directions, or the sun's azimuth and altitude angles. Specifically, for PV power stations that can adjust the orientation of PV modules according to changes in solar radiation direction, it is also necessary to detect the solar radiation intensity in different directions within the PV power station in real time or periodically, and adjust the orientation of the PV modules based on the detection results.

[0024] In addition, the solar irradiance intensity is generally needed when calculating the electrical energy that a photovoltaic power station or photovoltaic system can generate.

[0025] Therefore, it is essential to detect the azimuth, elevation, and intensity of solar irradiance in photovoltaic power plants or systems. Currently, solar irradiance intensity detection mainly focuses on the intensity of solar irradiance facing the front of the photovoltaic modules, neglecting the utilization of reflected light from the ground by the photovoltaic modules. In other words, existing solar irradiance detection equipment can generally only detect the intensity of solar irradiance received on the front of the photovoltaic modules at fixed points, and cannot detect the intensity of irradiance received on the back of the photovoltaic modules or the intensity of irradiance from different azimuths. To address the shortcomings of existing solar irradiance intensity detection methods, this utility model provides a novel solar irradiance detection system.

[0026] The specific structure of the solar irradiance detection system provided in this embodiment of the present invention will be described in detail below. Figure 1 and Figure 3 Three-dimensional structural schematic diagrams of two different structures of the solar irradiance detection system provided in the embodiments of this utility model are shown respectively. Figure 2 The present invention is applied to the embodiments provided by this utility model. Figure 1 A schematic cross-sectional view of the irradiation detection body of the first structure shown in the diagram; Figure 4 The present invention is applied to the embodiments provided by this utility model. Figure 3 A schematic diagram of the cross-sectional structure of the irradiation detection body in the second structure shown; Figure 5 This is a three-dimensional structural diagram of the support portion in the adjustable support structure provided according to an embodiment of the present utility model; Figure 6 This is a schematic diagram of the connection relationship between the base and the connecting part according to an embodiment of the present utility model.

[0027] Specifically, such as Figures 1 to 6 As shown, the solar irradiation detection system provided in this embodiment of the present invention may include: an irradiation detection body 10 and an adjustable support structure 20, wherein the irradiation detection body 10 is disposed on the adjustable support structure 20.

[0028] More specifically, such as Figures 1 to 4 As shown, the irradiation detection body 10 may include: a protective housing 11 with openings at both ends, a light-shielding part 13 installed within the protective housing 11, and at least one irradiation detection part 12 installed within the protective housing 11; for an irradiation detection part 12 detecting irradiation through the first opening of the protective housing 11, the light-shielding part 13 blocks the side of the irradiation detection part 12 away from the first opening; for an irradiation detection part 12 detecting irradiation through the second opening of the protective housing 11, the light-shielding part 13 blocks the side of the irradiation detection part 12 away from the second opening. It is worth noting that the irradiation detection part 12 detecting irradiation through the first opening of the protective housing 11 and the irradiation detection part 12 detecting irradiation through the second opening of the protective housing 11 can be the same irradiation detection part 12 (e.g., Figure 2As shown), different irradiation detection units 12 can also be used (such as...). Figure 4 (As shown). During the process of detecting irradiation on one side using the irradiation detection unit 12, the other side of the irradiation detection unit 12 (which is opposite to the side being irradiated) is blocked by the light-shielding part 13. For example, as shown... Figure 2 and Figure 3 As shown, when using the irradiation detection unit 12 to detect irradiation on the L side, the side of the irradiation detection unit 12 facing away from the L side (i.e., the side facing the R side) is blocked by the light-shielding part 13; when using the irradiation detection unit 12 to detect irradiation on the R side, the side of the irradiation detection unit 12 facing away from the R side (i.e., the side facing the L side) is blocked by the light-shielding part 13.

[0029] Furthermore, the aforementioned adjustable support structure 20 is mainly used to adjust the azimuth and pitch angles of the irradiation detection body 10 to adjust the irradiation detection body 10 and meet the requirements of solar irradiation detection in different orientations. The azimuth angle generally refers to the rotation angle of the irradiation detection body 10 in the horizontal direction relative to a fixed position (understandably, for the azimuth angle, the irradiation detection body 10 is generally obtained by rotating about an axis perpendicular to the horizontal plane). The pitch angle generally refers to the tilt angle of the irradiation detection body 10 relative to the horizontal or vertical direction (understandably, for the pitch angle, the irradiation detection body 10 is generally obtained by rotating about an axis parallel to the horizontal plane). For example, as... Figure 1 and Figure 3 As shown, the adjustable support structure 20 can adjust the rotation of the irradiation detection body 10 in the horizontal direction along clockwise direction c or counterclockwise direction a (i.e., adjust the azimuth angle of the irradiation detection body 10). Additionally, as... Figure 1 and Figure 3 As shown, the adjustable support structure 20 can also be adjusted to rotate downwards (d) or upwards (u) in the vertical direction (i.e., adjust the pitch angle of the irradiance detection body 10 relative to the horizontal plane). Understandably, based on this azimuth and pitch angles, the azimuth and altitude angles of the sun can be obtained, and a more accurate optimal tilt angle for component power generation can be calculated based on long-term irradiance data and solar altitude and azimuth information. It is worth noting that the adjustable support structure 20 can adjust the irradiance detection body 10 to rotate clockwise (c) or counterclockwise (a) in the horizontal direction within the range of 0° to 180°, and the adjustable support structure 20 can also be adjusted to rotate downwards (d) or upwards (u) in the vertical direction, generally within the range of 0° to 90°.

[0030] It should be noted that the solar irradiance detection system provided in this embodiment can be independently installed at any location in a photovoltaic power station, or it can be fixed to the support of the photovoltaic module array. The specific location of the solar irradiance detection system can be determined according to actual needs and design, and the location of the solar irradiance detection system is not limited here.

[0031] In addition, the solar irradiance detection system provided by this utility model can not only detect solar irradiance, but also determine the solar irradiance azimuth and elevation angle based on the azimuth and elevation angles.

[0032] As can be seen from the above, the solar irradiance detection system provided in this embodiment includes an irradiance detection unit 12 comprising a protective housing 11 with openings at both ends. Through these openings, at least one irradiance detection unit 12 corresponds to one of the openings, enabling it to detect irradiance from two opposing directions. This allows for a more accurate detection of the irradiance on the front and back of the photovoltaic module, improving detection accuracy. Furthermore, by adjusting the azimuth and pitch angles of the irradiance detection body 10 using the adjustable support structure 20, the detection direction of the irradiance detection unit 12 can be adjusted, enhancing the controllability and practicality of the solar irradiance detection system.

[0033] In addition, the solar irradiance detection system is a fully rotatable mechanical structure, which allows the solar irradiance detection system to track and monitor the irradiance of perpendicularly incident sunlight in real time.

[0034] Furthermore, the aforementioned irradiation detection body 10 and adjustable support structure 20 work together to eliminate the need for an auxiliary tracking bracket for the solar irradiation detection system. With the help of the adjustable support structure 20, it is possible to track the movement of the sun and obtain relevant solar parameters in real time, thereby helping the photovoltaic modules to maximize light utilization.

[0035] Furthermore, the aforementioned irradiation detection body 10 is detachably connected to the adjustable support structure 20. This allows users to easily replace the irradiation detection body 10 with different structures as needed, and to disassemble the irradiation detection body 10 for maintenance.

[0036] Furthermore, such as Figure 2 and Figure 4 As shown, the irradiation detection unit 12 may include: an assembly 121 connected to the protective housing 11, a detection device 123, and a photogenerating device 122 connected to the assembly 121; the detection device 123 is used to detect the current or current density of the photogenerating device 122; for one irradiation detection unit 12 to detect irradiation through the first end opening of the protective housing 11, the light-shielding part 13 shields the side of the photogenerating device 122 away from the first end opening; for one irradiation detection unit 12 to detect irradiation through the second end opening of the protective housing 11, the light-shielding part 13 shields the side of the photogenerating device 122 away from the second end opening.

[0037] More preferably, the photogenerating device 122, the assembly 121, and the detection device 123 are detachably connected to facilitate the disassembly and replacement of the photogenerating device 122 and the detection device 123 for the solar irradiation detection system, and to make it easier to maintain the solar irradiation detection system.

[0038] The photogenerating device 122 can be a commonly used photogenerating device 122 in current solar irradiance detection equipment, or it can be a photovoltaic module used in photovoltaic power plants. The detection device 123 can be an electrical energy detection device 123 such as an ammeter, which measures current and current density. It is worth noting that, in the case where the photogenerating device 122 is a photovoltaic module, the detection device 123 is used to contact various positions of the photovoltaic module with probes to detect the current at different positions. The current density is calculated using existing current density calculation methods based on the detected current at different positions. The structure provided by this utility model does not involve improvements to the current density, and the current density calculation process will not be described in detail here. It is also worth noting that the detection device 123 can be fixed to the photogenerating device 122. For example, transparent adhesive (such as EVA, POE, etc.) can be used to fix the detection device 123 to the photogenerating device 122.

[0039] Furthermore, the dimensions of each structure, such as the height and width of the adjustable support structure 20 and the height of the irradiation detection body 10, can be set according to actual needs. However, regarding the irradiation detection body 10, such as... Figure 1 and Figure 3 As shown, the protective housing 11 is generally a diameter of ( Figure 3 The cylindrical structure shown has a diameter (D) of 8cm to 20cm. By selecting a cylindrical structure, on the one hand, the influence of the protective housing 11 on light exposure can be avoided, thereby improving detection accuracy; on the other hand, it facilitates the secure mounting of the protective housing 11 onto the adjustable support structure 20 and makes it easy to assemble and disassemble the protective housing 11. Furthermore, by setting the diameter of the cylindrical structure (D) Figure 3 The diameter D shown is between 8cm and 20cm, which can accommodate the assembly 121, the photogenerating device 122, and the detection device 123, and allow the photogenerating device 122 to collect sufficient solar irradiance, thereby improving the accuracy of solar irradiance detection. For example, the diameter of the cylindrical structure can be 8cm, 10cm, 12cm, 15cm, 18cm, or 20cm, etc. The materials used to make the protective shell 11 include, but are not limited to, aluminum alloy, polyurethane, etc.

[0040] In addition, the solar irradiation detection system provided by this utility model can have one or two irradiation detection units 12.

[0041] Specifically, such as Figure 1 and Figure 2 As shown, for a structure where the number of irradiation detection units 12 is one, the light-shielding part 13 may include: located between the irradiation detection unit 12 and the first end opening (exemplary, Figure 2The first adjustable light shield 131 between the opening near the R side (as shown) and the second end opening (exemplary) located between the irradiation detection section 12 and the second end opening (as shown). Figure 2 The second adjustable light shield 132 is shown between the openings near the L side; when the irradiation detection unit 12 detects irradiation through the first end opening of the protective housing 11, the first adjustable light shield 131 is retracted to allow light to reach the side of the irradiation detection unit 12 near the first end opening, and the second adjustable light shield 132 is extended to shield the side of the irradiation detection unit 12 near the second end opening; when the irradiation detection unit 12 detects irradiation through the second end opening of the protective housing 11, the second adjustable light shield 132 is retracted to allow light to reach the side of the irradiation detection unit 12 near the second end opening, and the first adjustable light shield 131 is extended to shield the side of the irradiation detection unit 12 near the first end opening. By using the first adjustable shading member 131 and the second adjustable shading member 132, the same irradiance detection unit 12 can be used to detect solar irradiance corresponding to the front side of the photovoltaic module and solar irradiance corresponding to the back side of the photovoltaic module without rotating the orientation of the irradiance detection unit 12 at a pitch angle and an azimuth angle, which facilitates solar irradiance detection and improves detection accuracy.

[0042] In addition, by cooperating with the first adjustable shading member 131 and the second adjustable shading member 132, when detecting solar irradiance through the first end opening, the second end opening is blocked, and when detecting solar irradiance through the second end opening, the first end opening is blocked. This can prevent the irradiance detection unit 12 from being simultaneously exposed to solar irradiance from both sides during the detection process, thus avoiding affecting the accuracy of the detection results.

[0043] The unfolding and retraction of the first adjustable light-shielding member 131 and the second adjustable light-shielding member 132 can be achieved manually or by a controller. For the controller-driven structure, existing electrically operated unfolding and retraction mechanisms can be directly selected.

[0044] Preferably, for a single irradiation detection unit 12 comprising an assembly 121, a detection device 123, and a photogenerating device 122, if only one surface of the photogenerating device 122 can be used for irradiation detection, the photogenerating device 122 can also rotate around the assembly 121 under a driving force. When the first adjustable light-shielding member 131 is retracted and the second adjustable light-shielding member 132 is extended, the irradiation detection surface of the photogenerating device 122 faces the first end opening; when the second adjustable light-shielding member 132 is retracted and the first adjustable light-shielding member 131 is extended, the irradiation detection surface of the photogenerating device 122 faces the second end opening. In other words, the photogenerating device 122 can be flipped within the protective housing 11 so that its irradiation detection surface faces either the first or second end opening. The driving force can be applied to the photogenerating device 122 by an operator or by a power device.

[0045] Furthermore, for a single irradiation detection unit 12 comprising an assembly 121, a detection device 123, and a photogenerating device 122, two photogenerating devices 122 can be arranged facing away from each other. One photogenerating device 122 has its detection irradiation surface facing the first open end, while the other photogenerating device 122 has its detection irradiation surface facing the second open end. The detection device 123 can detect the current or current density of these two photogenerating devices 122 respectively. That is, when the first adjustable light-shielding member 131 is retracted and the second adjustable light-shielding member 132 is extended, the photogenerating device 122 facing the first open end operates, and the detection device 123 detects the current or current density of the photogenerating device 122 facing the first open end. When the second adjustable light-shielding member 132 is retracted and the first adjustable light-shielding member 131 is extended, the photogenerating device 122 facing the second open end operates, and the detection device 123 detects the current or current density of the photogenerating device 122 facing the second open end.

[0046] It should be noted that the terms "first," "second," "third," and "fourth" in this utility model do not indicate the quantity or order of components, parts, or structures, but are used to distinguish different components, parts, or structures located in different positions. For example, the first end opening can be... Figure 2 and Figure 4 The protective housing 11 shown has an opening near the R side, and the second end opening can be... Figure 2 and Figure 4The protective housing 11 shown has an opening near the L side. For example, the first adjustable light shield 131 refers to an adjustable light shield located between the radiation detection unit 12 and the first end opening in a structure where there is only one radiation detection unit 12; the second adjustable light shield 132 refers to an adjustable light shield located between the radiation detection unit 12 and the second end opening in a structure where there is only one radiation detection unit 12; the third adjustable light shield 134 described below refers to an adjustable light shield located between the radiation detection unit 12 and the first end opening in a structure where there are two radiation detection units 12; and the fourth adjustable light shield 135 refers to an adjustable light shield located between the radiation detection unit 12 and the second end opening in a structure where there are only two radiation detection units 12, etc.

[0047] More specifically, for a structure where the number of irradiation detection units 12 is one, the axial length of the protective housing 11 (e.g.) Figure 1 As shown, L1 is typically 3cm to 5cm long, axially penetrating the first and second end openings. For example, the axial length of the protective housing 11 (e.g., ...) Figure 1 As shown, L1 can be 3cm, 4cm or 5cm, etc. By controlling the length of the protective shell 11 in the axial direction, it can be ensured that solar radiation can reach the radiation detection unit 12 well through the first end opening and the second end opening, which helps to further improve the accuracy of the detection results.

[0048] In this embodiment of the invention, the direction of the first end opening is consistent with the front face of the photovoltaic module, and the direction of the second end opening is consistent with the back face of the photovoltaic module. Based on this, for a structure where there is only one irradiation detection unit 12, the distance from the side of the irradiation detection unit 12 closest to the first end opening to the edge of the first end opening (e.g., ...) Figure 2 The distance S1 shown is generally 1.5cm to 3.5cm. For example, the distance from the side of the irradiation detection unit 12 closest to the first end opening to the edge of the first end opening (e.g., ...) is... Figure 2The distance S1 shown can be 1.5cm, 1.8cm, 2cm, 2.5cm, 3cm, or 3.5cm, etc. By setting the distance from the side of the irradiation detection unit 12 near the first end opening to the edge of the first end opening within the range of 1.5cm to 3.5cm, it can be ensured that the solar irradiation reaching the irradiation detection unit 12 from the first end opening is consistent with the solar irradiation received by the front of the photovoltaic module, thereby improving the accuracy of the detection results for the solar irradiation received by the front of the photovoltaic module. Furthermore, since solar energy can directly shine light into the first end opening, and the irradiation detection unit 12 is mainly used to detect the sunlight entering the first end opening, by controlling the distance from the side of the irradiation detection unit 12 near the first end opening to the edge of the first end opening within the range of 1.5cm to 3.5cm, detection accuracy can be ensured while providing the irradiation detection unit 12 with better operating space and better protection of the irradiation detection unit 12.

[0049] Furthermore, based on the fact that the direction of the first opening is consistent with the front face of the photovoltaic module and the direction of the second opening is consistent with the back face of the photovoltaic module, the distance from the side of the irradiation detection unit 12 closest to the second opening to the edge of the second opening (e.g., Figure 2 The distance S2 shown is generally 0.5cm to 1.5cm. For example, the distance from the side of the irradiation detection unit 12 near the second end opening to the edge of the second end opening (e.g., ...) is... Figure 2 The distance S2 shown can be 0.5cm, 0.8cm, 1cm, 1.3cm, or 1.5cm, etc. The distance from the side of the irradiation detection unit 12 closest to the second end opening to the edge of the second end opening (e.g., ...) is determined by setting the distance... Figure 2 The distance S2 shown is within the range of 0.5cm to 1.5cm, which can ensure that the solar irradiation from the second end opening to the irradiation detection unit 12 is consistent with the solar irradiation received on the back of the photovoltaic module, thereby improving the accuracy of the detection results for the solar irradiation received on the back of the photovoltaic module.

[0050] Furthermore, such as Figure 3 and Figure 4 As shown, in a structure with two irradiation detection units 12, one irradiation detection unit 12 is located near the first end opening (R side), and the other irradiation detection unit 12 is located near the second end opening (L side). The shading unit 13 includes a fixed shading member 133 located between the two irradiation detection units 12. By cooperating with the two irradiation detection units 12, solar irradiation corresponding to the front side of the photovoltaic module and solar irradiation corresponding to the back side of the photovoltaic module can be detected simultaneously, improving detection efficiency.

[0051] Understandably, such as Figure 4As shown, for a structure with two irradiation detection units 12, the irradiation detection unit 12 near the first end opening (R side) includes a fitting 121 connected to the protective housing 11, a photogenerating device 122 detachably connected to the fitting 121, and a detection device 123. The other irradiation detection unit 12 near the second end opening (L side) also includes a fitting 121 connected to the protective housing 11, a photogenerating device 122 detachably connected to the fitting 121, and a detection device 123. These two irradiation detection units 12 have relatively independent structures and are used to detect solar irradiation corresponding to the front of the photovoltaic module and solar irradiation corresponding to the back of the photovoltaic module, respectively.

[0052] Furthermore, such as Figure 4 As shown, the shading part 13 may further include: a third adjustable shading member 134 and a fourth adjustable shading member 135; wherein, the third adjustable shading member 134 is located between the irradiation detection part 12 near the first end opening and the first end opening; the fourth adjustable shading member 135 is located between the irradiation detection part 12 near the second end opening and the second end opening. By cooperating with the third adjustable shading member 134 and the fourth adjustable shading member 135, it is also possible to separately detect solar irradiance corresponding to the front side of the photovoltaic module and solar irradiance corresponding to the back side of the photovoltaic module, enabling the solar irradiance detection system to better meet different user needs, expand the detection scenarios of the solar irradiance detection system, and better meet detection requirements.

[0053] More specifically, for a structure with two irradiation detection units 12, based on the first end opening direction being aligned with the front of the photovoltaic module and the second end opening direction being aligned with the back of the photovoltaic module, such as... Figure 4 As shown, the distance from the irradiation detection unit 12 near the first end opening (the first end opening is the opening located on the R side) to the edge of the first end opening ( Figure 4 The distance S3 shown is generally 1.5cm to 3.5cm. For example, the distance S3 from the irradiation detection unit 12 near the first end opening to the edge of the first end opening can be 1.5cm, 1.8cm, 2cm, 2.5cm, 3cm, or 3.5cm, etc. By setting the distance S3 from the irradiation detection unit 12 near the first end opening to the edge of the first end opening within the range of 1.5cm to 3.5cm, it can be ensured that the solar irradiation reaching the irradiation detection unit 12 from the first end opening is consistent with the solar irradiation received by the front of the photovoltaic module, thereby improving the accuracy of the detection results for the solar irradiation received by the front of the photovoltaic module. Furthermore, since solar energy can directly penetrate the first end opening, this distance range ensures detection accuracy, provides the irradiation detection unit 12 with better operating space, and also better protects the irradiation detection unit 12.

[0054] Furthermore, for structures where the number of irradiation detection units 12 is two, such as... Figure 4 As shown, the distance from the irradiation detection unit 12 near the second end opening (the first end opening is the opening located on the L side) to the edge of the second end opening ( Figure 4 The distance S4 shown is generally 0.5cm to 1.5cm. For example, the distance S4 from the irradiation detection unit 12 near the second end opening (the first end opening being the opening located on the L side) to the edge of the second end opening can be 0.5cm, 0.8cm, 1cm, 1.3cm, or 1.5cm, etc. By setting the distance S4 from the irradiation detection unit 12 near the second end opening (the first end opening being the opening located on the L side) to the edge of the second end opening... Figure 4 The distance S4 shown is within the range of 0.5cm to 1.5cm, which can ensure that the solar irradiation from the second end opening to the irradiation detection unit 12 is consistent with the solar irradiation received on the back of the photovoltaic module, thereby improving the accuracy of the detection results for the solar irradiation received on the back of the photovoltaic module.

[0055] Furthermore, for structures where the number of irradiation detection units 12 is two, such as... Figure 3 As shown, the axial length L2 of the protective housing 11 can be 10cm to 30cm. It is understood that the protective housing 11 extends axially through both the first and second end openings. For example, the axial length L2 of the protective housing 11 can be 10cm, 15cm, 18cm, 20cm, 25cm, or 30cm, etc. By controlling the axial length L2 of the protective housing 11, it can be ensured that the irradiation detection unit 12 can be reached relatively well through both the first and second end openings. Simultaneously, sufficient space is provided between the two irradiation detection units 12 to avoid mutual interference, which helps to further improve the accuracy of simultaneously detecting solar irradiation corresponding to the front and back of the photovoltaic module.

[0056] Furthermore, regarding the aforementioned adjustable support structure 20, such as Figure 1 , Figure 3 , Figure 5 and Figure 6 As shown, it may include: a base 21, a connecting part 22, and a supporting part 23, wherein one end of the connecting part 22 is rotatably connected to the base 21, and the other end of the connecting part 22 is rotatably connected to the supporting part 23; when the connecting part 22 is subjected to a driving force in a first direction, it drives the supporting part 23 to rotate relative to the base 21 around a first axis; when the supporting part 23 is subjected to a driving force in a second direction, it rotates relative to the connecting part 22 around a second axis, wherein the first axis and the second axis are perpendicular, and one of the first axis and the second axis is parallel to the horizontal plane. By cooperating with the connecting part 22, the base 21, and the supporting part 23, the azimuth and elevation angles of the irradiation detection unit 12 can be adjusted simultaneously. For example, as shown... Figure 1 and Figure 3As shown, the first driving force is in the same direction as clockwise direction c or counterclockwise direction a, driving the connecting part 22 to rotate the support part 23 relative to the base 21 in the clockwise direction c or counterclockwise direction a. The second driving force is in the same direction as downward direction d or upward direction u, driving the connecting part 22 to move the support part 23 relative to the base 21 in the upward direction u or downward direction d.

[0057] The structure of the base 21, connecting part 22 and support part 23 working together to achieve azimuth and pitch angle adjustment is relatively simple and easy to control.

[0058] The first and second directional driving forces can be adjusted manually or by the motor outputting the corresponding driving force to the connecting part 22.

[0059] More specifically, regarding support part 23, such as Figure 1 , Figure 3 and Figure 5 As shown, it may include an arc-shaped support groove 231, which is used to engage the protective housing 11 of the irradiation detection body 10. This structure facilitates the disassembly and assembly of the protective housing 11, and makes it easier to replace and repair the irradiation detection body 10.

[0060] Furthermore, in order to achieve pitch angle control of the irradiation detection body 10 through the cooperation of the connecting part 22 and the support part 23, such as Figure 1 , Figure 3 and Figure 5 As shown, the support portion 23 may further include two support frames 232 and a drive shaft 233 located below the arc-shaped support groove 231 and arranged opposite to each other. The structure in which the connecting portion 22 cooperates with the two support frames 232 and the drive shaft 233 can be of two types.

[0061] Specifically, in the first structure where the connecting part 22 cooperates with the two support frames 232 and the drive shaft 233: the drive shaft 233 is fixedly connected to the two support frames 232, and the drive shaft 233 is movably connected to the other end of the connecting part 22; the axis of the drive shaft 233 is parallel to the horizontal plane; the drive shaft 233 is subjected to an external driving force (the direction of the driving force is parallel to the horizontal plane). Figure 1 and Figure 3 When the d-direction or u-direction is consistent as shown, the two support frames 232 are rotated around the axis to adjust the pitch angle of the irradiation detection body 10. That is, the support part 23 can be rotated relative to the other end of the connecting part 22 through the two support frames 232 and the drive shaft 233, thereby controlling the pitch angle of the irradiation detection body 10. This structure is relatively simple and easy to maintain.

[0062] Furthermore, regarding the structure in which the two support frames 232 and the drive shaft 233 cooperate, such as Figure 5As shown, a drive wheel 234 fixedly connected to the drive shaft 233 may also be included on the outside of the support frame 232. The user can rotate the drive wheel 234 to drive the drive shaft 233 and the support frame 232 to move in the u direction or d direction, so as to adjust the pitch angle of the irradiation detection body 10.

[0063] Additionally, the drive shaft 233 and the other end of the connecting part 22 can be fixed together by a latch (not shown in the figure) for engaging the drive shaft 233 with the other end of the connecting part 22. When the driving force rotates the drive shaft 233, the latch retracts, causing the drive shaft 233 to rotate relative to the other end of the connecting part 22. When the elevation angle (i.e., pitch angle) of the support part 23 coincides with the solar elevation angle, and the support part 23 needs to be fixed, the latch pops out, fixing the drive shaft 233. At the same time, a sensor is installed on the latch or the drive shaft 233 to record the elevation angle of the fixed position, i.e., the stop position. The protruding and retracting directions of the latch are generally consistent with the radial direction of the drive shaft 233.

[0064] Another configuration involves the connecting part 22 cooperating with the two support frames 232 and the drive shaft 233. In this configuration, the drive shaft 233 is rotatably connected to the two support frames 232, and the other end of the drive shaft 233 is fixedly connected to the connecting part 22. When subjected to external driving force, the support frames 232 rotate around the axis or the drive shaft 233, adjusting the pitch angle of the irradiation detection body 10. During pitch angle adjustment, the drive shaft 233 and the connecting part 22 remain stationary, while the support frames 232 rotate around the drive shaft 233 to adjust the pitch angle of the irradiation detection body 10. Furthermore, the drive shaft 233 is provided with a latch (not shown in the figure) for engaging the drive shaft 233 with the support frames 232. The protrusion and inward direction of the latch are generally aligned with the radial direction of the drive shaft 233. When the drive support 232 is driven, the buckle retracts, causing the support 232 to rotate relative to the drive shaft 233. When the elevation angle (i.e., pitch angle) of the support part 23 is consistent with the solar elevation angle, the support part 23 needs to be fixed. At this time, the support part 23 stops rotating, the buckle pops out, and the support part 23 is fixed. At the same time, the support part 23 is equipped with a sensor to record the elevation angle of the fixed position, i.e., the stop position.

[0065] Furthermore, based on any of the structural foundations where the connecting part 22 mates with the two support frames 232 and the drive shaft 233, such as Figure 6As shown, one end of the connecting part 22 includes a rotatable connecting structure 221; the rotatable connecting structure 221 is rotatably connected to the base 21, wherein the axis of rotation of the rotatable connecting structure 221 is perpendicular to the horizontal plane. Through this rotatable connecting structure 221, the connecting part 22 can rotate relative to the base 21 on the horizontal plane. During the rotation of the connecting part 22, it drives the support part 23 connected to it and the irradiation detection body 10 fixed on the support part 23 to rotate on the horizontal plane, thereby adjusting the azimuth angle of the irradiation detection body 10. This rotatable connecting structure 221 is rotatably connected to the base 21, has a simple structure, and is easy to control and maintain.

[0066] Furthermore, such as Figure 6 As shown, the base 21 includes a groove 211 that mates with the rotary connection structure 221, which is embedded in the groove 211. By embedding the rotary connection structure 221 in the groove 211, the rotary connection structure 221 is hidden within the base 21, improving the overall aesthetics of the solar irradiation detection system.

[0067] Furthermore, based on the base 21 including the groove 211, such as Figure 6 As shown, the connecting part 22 may further include: a fixing lever 222; a serrated structure is provided on the side of the groove 211 facing the rotating connecting structure 221; one end of the fixing lever 222 is fixed to the edge of the rotating connecting structure 221, and the other end of the fixing lever 222 is embedded in the serrated structure to fix the rotating connecting structure 221. By locking the fixing lever 222 and the serrated structure together, the azimuth angle of the connecting part 22 can be controlled relatively precisely. Since the serrated structure applies a blocking force to the fixing lever 222, the rotation stop position and azimuth angle of the connecting part 22 can be controlled relatively easily, preventing rebound and avoiding excessive rotation of the connecting part 22 due to inertia. Generally, the number of teeth in the serrated structure is not less than 180 and not more than 300. For example, the number of teeth in the serrated structure is 180, 200, 250 or 300, etc. Controlling the number of teeth can ensure rotational accuracy.

[0068] In addition, a sensor (not shown in the figure) can be set on the fixed lever 222 to record the azimuth angle of the rotation stop position, thereby avoiding manual observation of the azimuth angle.

[0069] The above steps are provided only to help understand the method, structure, and core idea of ​​this utility model. For those skilled in the art, various improvements and modifications can be made to this utility model without departing from its principles, and these improvements and modifications also fall within the scope of protection of the claims of this utility model.

Claims

1. A solar irradiance detection system, characterized in that, include: The irradiation detection body (10) and the adjustable support structure (20), wherein, The irradiation detection body (10) is mounted on the adjustable support structure (20); The irradiation detection body (10) includes: a protective shell (11) with open ends, a light-shielding part (13) installed in the protective shell (11), and at least one irradiation detection part (12) installed in the protective shell (11). For an irradiation detection unit (12) to detect irradiation through the first end opening of the protective housing (11), the light-shielding part (13) provides light protection for the side of the irradiation detection unit (12) away from the first end opening; For an irradiation detection unit (12) to detect irradiation through the second end opening of the protective housing (11), the light-shielding part (13) provides light protection for the side of the irradiation detection unit (12) away from the second end opening; The adjustable support structure (20) is used to adjust the azimuth and pitch angles of the irradiation detection body (10).

2. The solar irradiance detection system according to claim 1, characterized in that, The irradiation detection unit (12) includes: an assembly (121) connected to the protective housing (11), a detection device (123), and a photogenerating device (122) connected to the assembly (121). The detection device (123) is used to detect the current or current density of the photogenerating device (122); For an irradiation detection unit (12) to detect irradiation through the first end opening of the protective housing (11), the light-shielding part (13) shields the side of the photogenerating device (122) away from the first end opening; For an irradiation detection unit (12) to detect irradiation through the second end opening of the protective housing (11), the light-shielding part (13) shields the side of the photogenerating device (122) away from the second end opening.

3. The solar irradiance detection system according to claim 1 or 2, characterized in that, The number of the irradiation detection units (12) is one or two; When the number of the irradiation detection unit (12) is one, The light-shielding part (13) includes: a first adjustable light-shielding member (131) located between the irradiation detection part (12) and the first end opening, and a second adjustable light-shielding member (132) located between the irradiation detection part (12) and the second end opening. When the irradiation detection unit (12) detects irradiation through the first end opening of the protective housing (11), the first adjustable light shield (131) is retracted so that the light reaches the side of the irradiation detection unit (12) near the first end opening, and the second adjustable light shield (132) is unfolded to shield the side of the irradiation detection unit (12) near the second end opening. When the irradiation detection unit (12) detects irradiation through the second end opening of the protective housing (11), the second adjustable light shield (132) is retracted so that the light reaches the side of the irradiation detection unit (12) near the second end opening, and the first adjustable light shield (131) is unfolded to shield the side of the irradiation detection unit (12) near the first end opening. For the case where there are two irradiation detection units (12), One of the irradiation detection units (12) is located near the first end opening, and the other of the irradiation detection units (12) is located near the second end opening; The light-shielding part (13) includes a fixed light-shielding member (133) located between the two irradiation detection parts (12).

4. The solar irradiance detection system according to claim 3, characterized in that, The protective shell (11) is a cylindrical structure with a diameter of 8cm to 20cm; or / and, When there is one irradiation detection unit (12), the length of the protective shell (11) from the first end opening to the second end opening is 3cm to 5cm; or when there are two irradiation detection units (12), the length of the protective shell (11) from the first end opening to the second end opening is 10cm to 30cm. or / and, The distance from the side of the irradiation detection unit (12) near the first end opening to the edge of the first end opening is 1.5cm to 3.5cm; the distance from the side of the irradiation detection unit (12) near the second end opening to the edge of the second end opening is 0.5cm to 1.5cm.

5. The solar irradiance detection system according to claim 3, characterized in that, When the number of the irradiation detection unit (12) is one and the irradiation detection unit (12) includes an assembly (121), a detection device (123) and a photogenerating device (122), the photogenerating device (122) rotates around the assembly (121) under the drive force, so that when the first adjustable light shield (131) is retracted and the second adjustable light shield (132) is unfolded, the detection irradiation surface of the photogenerating device (122) faces the first end opening, and when the second adjustable light shield (132) is retracted and the first adjustable light shield (131) is unfolded, the detection irradiation surface of the photogenerating device (122) faces the second end opening.

6. The solar irradiance detection system according to claim 3, characterized in that, For cases where there are two irradiation detection units (12), the light-shielding unit (13) further includes: a third adjustable light-shielding member (134) and a fourth adjustable light-shielding member (135); wherein, The third adjustable shading member (134) is located between the irradiation detection unit (12) and the first end opening, near the first end opening; The fourth adjustable shading member (135) is located between the irradiation detection unit (12) and the second end opening, near the second end opening.

7. The solar irradiance detection system according to claim 1, characterized in that, The adjustable support structure (20) includes: a base (21), a connecting part (22), and a support part (23), wherein, One end of the connecting part (22) is rotatably connected to the base (21), and the other end of the connecting part (22) is rotatably connected to the support part (23); When the connecting part (22) is driven by a first direction force, it causes the supporting part (23) to rotate relative to the base (21) around a first axis. When the support (23) is subjected to a second directional driving force, it rotates relative to the connecting part (22) around a second axis, wherein the first axis is perpendicular to the second axis, and one of the first axis and the second axis is parallel to the horizontal plane.

8. The solar irradiance detection system of claim 7, wherein, The support part (23) includes: an arc-shaped support groove (231), two opposing support frames (232) located below the arc-shaped support groove (231), and a drive shaft (233). The arc-shaped support groove (231) is used to engage the protective shell (11) of the irradiation detection body (10). The drive shaft (233) is fixedly connected to the two support frames (232) and the other end of the drive shaft (233) is movably connected to the connecting part (22), or the drive shaft (233) is rotatably connected to the two support frames (232) and the other end of the drive shaft (233) is fixedly connected to the connecting part (22), and the axis of the drive shaft (233) is parallel to the horizontal plane; When subjected to an external driving force, the support frame (232) rotates around the axis of the drive shaft (233) to adjust the pitch angle of the irradiation detection body (10).

9. The solar irradiance detection system according to claim 7 or 8, characterized in that, One end of the connecting part (22) includes a rotary connecting structure (221); The rotating connection structure (221) is rotatably connected to the base (21), wherein the axis of rotation of the rotating connection structure (221) is perpendicular to the horizontal plane.

10. The solar irradiance detection system according to claim 9, characterized in that, The base (21) includes a groove (211) that mates with the rotary connection structure (221), and the groove (211) has a serrated structure on the side facing the rotary connection structure (221). The connecting part (22) further includes: a fixing lever (222); The rotating connection structure (221) is embedded in the groove (211), one end of the fixing paddle (222) is fixed to the edge of the rotating connection structure (221), and the other end of the fixing paddle (222) is embedded in the serrated structure to fix the rotating connection structure (221).

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