Accelerated aging device of photovoltaic module

Abstract

The utility model relates to an aging acceleration device of a photovoltaic module. The accelerated aging device comprises a mounting base, a supporting piece, a lens mounting frame and a position adjusting piece, and the supporting piece is arranged on the mounting base and can stretch out and draw back up and down; the lens mounting frame is arranged on the supporting piece, and lenses with different sizes can be mounted above the photovoltaic module; and the position adjusting piece can adjust the position of the lens relative to the photovoltaic module, so that the photovoltaic module can be vertically irradiated by sunlight. According to the accelerated aging device, the illumination intensity can be accurately simulated, the accelerated aging degree can be reasonable, the accurate accelerated aging effect can be ensured, and then the quality evaluation and the service life prediction of the photovoltaic module can be accurately carried out.

Description

Technical Field

[0001] This application relates to the field of photovoltaic module technology, and in particular to an accelerated aging device for photovoltaic modules. Background Technology

[0002] To simulate the impact of long-term outdoor environments on photovoltaic (PV) module performance in a short period, accelerated aging tests are typically conducted. This assesses lifespan, ensures reliability, enables quality control, and optimizes materials and processes. Currently, accelerated aging devices equipped with concentrating lenses are usually placed above the PV modules to conduct these tests. However, existing accelerated aging devices cannot accurately simulate light intensity, leading to inaccurate accelerated aging rates and misleading PV module quality assessments and lifespan predictions. Utility Model Content

[0003] Therefore, it is necessary to provide an accelerated aging device for photovoltaic modules to address the aforementioned technical problems.

[0004] An accelerated aging device for photovoltaic modules, comprising:

[0005] Mounting base;

[0006] A support member is mounted on the mounting base and is capable of vertical extension and retraction;

[0007] A lens mounting bracket, which is mounted on the support member, and is capable of mounting lenses of different sizes above the photovoltaic module; and

[0008] An adjustment component is provided, which can adjust the position of the lens relative to the photovoltaic module so that the photovoltaic module can be perpendicularly irradiated by sunlight.

[0009] In one embodiment, the lens mounting bracket includes a first clamping member and a second clamping member disposed opposite to each other, the first clamping member having a first clamping area, and the second clamping member having a second clamping area facing the first clamping area; wherein the first clamping area has a plurality of first clamping positions, and / or the second clamping area has a plurality of second clamping positions.

[0010] In one embodiment, the first clamping member includes a first upper light-transmitting clamping plate, a first lower light-transmitting clamping plate, and a first fastener. The first upper light-transmitting clamping plate and the first lower light-transmitting clamping plate are spaced apart vertically, and a first clamping area is formed between the first upper light-transmitting clamping plate and the first lower light-transmitting clamping plate. The first fastener passes through the first upper light-transmitting clamping plate and the first lower light-transmitting clamping plate to fix the first upper light-transmitting clamping plate and the first lower light-transmitting clamping plate to the support member; and / or,

[0011] The second clamping member includes a second upper light-transmitting clamping plate, a second lower light-transmitting clamping plate, and a second fastener. The second upper light-transmitting clamping plate and the second lower light-transmitting clamping plate are spaced apart vertically, and a second clamping area is formed between the second upper light-transmitting clamping plate and the second lower light-transmitting clamping plate. The second fastener passes through the second upper light-transmitting clamping plate and the second lower light-transmitting clamping plate to fix the second upper light-transmitting clamping plate and the second lower light-transmitting clamping plate to the support member.

[0012] In one embodiment, the first upper light-transmitting clamp plate has a first upper stop protrusion on the side near the first lower light-transmitting clamp plate, and / or, the first lower light-transmitting clamp plate has a first lower stop protrusion on the side near the first upper light-transmitting clamp plate; and / or,

[0013] The second upper light-transmitting clamp plate has a second upper stop protrusion on the side near the second lower light-transmitting clamp plate, and / or the second lower light-transmitting clamp plate has a second lower stop protrusion on the side near the second upper light-transmitting clamp plate.

[0014] In one embodiment, the adjusting member includes a first joint hinge mechanism and / or a second joint hinge mechanism, wherein the first joint hinge mechanism is disposed between the upper end of the support member and the lens mounting bracket, and the second joint hinge mechanism is disposed between the lower end of the support member and the mounting base.

[0015] In one embodiment, the lens mount includes a mounting frame;

[0016] The adjusting component includes two first slide rails and two second slide rails disposed on the mounting frame. The two first slide rails can move towards each other or away from each other along a first horizontal direction, and the two second slide rails can move towards each other or away from each other along a second horizontal direction. The two first slide rails and the two second slide rails can form a lens clamping area.

[0017] In one embodiment, the support includes a power cylinder, the cylinder body of which is connected to the mounting base, and the piston rod of which is connected to the lens mounting bracket.

[0018] In one embodiment, the mounting base is provided with a mounting groove that extends horizontally through the mounting base.

[0019] In one embodiment, the lens is a linear Fresnel lens.

[0020] In one embodiment, the accelerated aging device further includes a functional support disposed on the side of the lens mounting bracket.

[0021] The aforementioned accelerated aging device for photovoltaic modules, by designing the support structure as a retractable structure and the light-transmitting mounting frame to accommodate lenses of different sizes, allows for changes in the lens's focusing power by altering the distance between the lens and the photovoltaic module, as well as the lens area. This accurately simulates light intensity, ensuring a reasonable degree of accelerated aging and improving the versatility of experimental results. It meets the needs of diverse practical scenarios and facilitates the optimization of photovoltaic module design and material selection. Furthermore, the device incorporates a position adjustment component, which adjusts the lens position based on seasonal variations in the solar altitude angle and the sun's position at different times of day. This ensures year-round shade-free operation and direct frontal irradiation for the photovoltaic modules at specific times each day, maximizing the accuracy of the light intensity and guaranteeing accurate accelerated aging. This allows for accurate quality assessment and lifespan prediction of photovoltaic modules, as well as effective evaluation of performance changes in different seasons, facilitating a comprehensive understanding of photovoltaic module performance and its appropriate application. In summary, this accelerated aging device accurately simulates light intensity, ensures a reasonable degree of accelerated aging, guarantees accurate accelerated aging results, and consequently, accurately assesses the quality and lifespan of photovoltaic modules. Attached Figure Description

[0022] Figure 1 This is a side view of an accelerated aging device provided in an embodiment of this application.

[0023] Figure 2 for Figure 1 A schematic diagram showing the installation of the accelerated aging device on the photovoltaic bracket.

[0024] Figure 3 for Figure 1 A top view of the mounting bracket for the accelerated aging device is provided.

[0025] Figure 4 for Figure 1 A schematic diagram of the lens mounting bracket and lens of the provided accelerated aging device.

[0026] Figure 5 for Figure 4 A magnified view of a portion of the image.

[0027] Figure 6 This is a schematic diagram of the lens mounting bracket and adjustment component of an accelerated aging device provided in another embodiment of this application.

[0028] The labels in the attached diagram are explained as follows:

[0029] 10. Accelerated aging device; 100. Mounting base; 100a. Mounting groove; 200. Support member; 300. Lens mounting bracket; 310. First clamping member; 310a. First clamping area; 311. First upper light-transmitting clamping plate; 3111. First upper stop protrusion; 312. First lower light-transmitting clamping plate; 3121. First lower stop protrusion; 313. First fastener; 3131. Bolt; 3132. Nut; 320. Second clamping member; 320a. Second clamping area; 330. Mounting frame; 400. Adjustment member; 410. First joint hinge mechanism; 420. Second joint hinge mechanism; 430. First slide rail; 440. Second slide rail; 500. Functional bracket; 600. Lens; 700. Control module; 800. Mounting bracket; 20. Photovoltaic module; 30. Photovoltaic bracket. Detailed Implementation

[0030] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0031] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0032] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0033] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0034] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0035] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0036] To simulate the impact of long-term outdoor environments on the performance of photovoltaic modules in a short period of time, accelerated aging devices are typically used to conduct accelerated aging tests on photovoltaic modules, thereby assessing service life, ensuring reliability, conducting quality control, and optimizing materials and processes.

[0037] The core component of accelerated aging devices is the concentrating lens. However, traditional accelerated aging devices have a fixed and unchangeable concentration ratio and do not consider seasonal changes in the sun's angle. In accelerated aging experiments, if the concentration ratio of the concentrating lens is fixed, the simulated light intensity will be distorted, failing to flexibly adapt to changes in light intensity at different times and in different environments. This leads to unreasonable accelerated aging, either underestimating the lifespan too quickly or overestimating it too slowly. Furthermore, the experimental results lack universality, making it difficult to meet the needs of diverse real-world scenarios and hindering the optimization of photovoltaic module design and material selection. Similarly, failing to consider seasonal changes in sun altitude will also result in inaccurate light intensity, as the sun's altitude varies significantly across seasons, leading to substantial changes in actual light intensity. This results in inaccurate accelerated aging effects, misleading photovoltaic module quality assessment and lifespan prediction. It also fails to effectively evaluate the performance changes of photovoltaic modules in different seasons, hindering a comprehensive understanding of photovoltaic module performance and its proper application.

[0038] In this regard, one embodiment of this application provides an accelerated aging device for photovoltaic modules. This accelerated aging device can conduct accelerated aging tests on photovoltaic modules outdoors, thereby assessing service life, ensuring reliability, performing quality control, and optimizing materials and processes.

[0039] like Figure 1 As shown, the accelerated aging device 10 includes a lens 600, a mounting base 100, a support 200, a lens mounting bracket 300, and an adjusting component 400. For example... Figure 2 As shown, the mounting base 100 can be installed on the photovoltaic bracket 30, or on other brackets. The photovoltaic bracket 30 is used to install the photovoltaic module 20. The photovoltaic module 20 is usually installed on the top of the photovoltaic bracket 30. The top of the photovoltaic module 20 can be set as a clamping structure to fix the photovoltaic module 20 by clamping force; or it can be set as a pressure block fixing structure to fix the photovoltaic module 20.

[0040] Mounting base 100 may include multiple mounting blocks, which can be installed on opposite sides of the top of photovoltaic bracket 30. The number of mounting blocks can be set according to requirements, for example, four blocks, with two mounting bases 100 on each opposite side of the top of photovoltaic bracket 30.

[0041] Optionally, such as Figure 3 As shown, the mounting block of the mounting base 100 has a mounting groove 100a on its lower side, and the mounting groove 100a horizontally penetrates the mounting base 100. Figure 3 As shown, the top of the photovoltaic bracket 30 can be inserted into the mounting groove 100a, and the top of the photovoltaic module 20 is connected to the mounting base 100 using threaded parts (e.g., screws) to ensure that the entire device does not shift. Of course, in some other embodiments, the mounting groove 100a may be located on the side of the mounting block.

[0042] The support member 200 is mounted on the mounting base 100 and is capable of vertical extension and retraction. Optionally, the support member 200 may include a power cylinder, the cylinder body of which is connected to the mounting base 100, and the piston rod of which is connected to the lens mounting bracket 300. The cylinder can be a hydraulic cylinder or a pneumatic cylinder, and its lifting and stopping can be controlled automatically, for example... Figure 1 As shown, the lifting and stopping of the power cylinder is controlled by a control module 700 (e.g., a PLC controller). Other control methods can also be chosen, such as wireless WiFi control or software control with relevant algorithms. As an example, the control module 700 can be as follows: Figure 1 The mounting bracket 800 is shown and is mounted on one side of the mounting base 100.

[0043] The number and position distribution of the power cylinders are the same as those of the mounting blocks of the mounting base 100.

[0044] The lens mounting bracket 300 is mounted on the support 200 and can mount lenses 600 of different sizes above the photovoltaic module 20. When the photovoltaic module 20 undergoes accelerated aging testing, the lens 600 can concentrate the light, significantly increasing the light energy per unit area. This accelerates the aging process of the photovoltaic module 20 material under sunlight, simulating the aging effect under long-term natural sunlight in a shorter time. The focusing power of the lens 600 is related to its area and the distance between it and the photovoltaic module 20. During testing, the distance between the lens 600 and the photovoltaic module 20 can be changed by adjusting the area of ​​the lens 600 (i.e., installing lenses 600 of different sizes) or by adjusting the distance between the lens 600 and the photovoltaic module 20 (i.e., by extending and retracting the support 200).

[0045] Optionally, lens 600 can be a linear Fresnel lens. Compared to the ordinary Fresnel lenses currently used, the linear Fresnel lens only focuses light from both sides to form a linear light spot, resulting in a larger focusing area. The photovoltaic modules 20 can be closely arranged, increasing the number of photovoltaic modules 20 while achieving the desired focusing power.

[0046] The adjusting component 400 can adjust the position of the lens 600 relative to the photovoltaic module 20 so that the photovoltaic module 20 can be perpendicularly irradiated by sunlight. When conducting outdoor accelerated aging tests on the photovoltaic module 20, the position of the lens 600 can be changed by the adjusting component 400 according to the seasonal changes in the solar altitude angle and the changes in the sun's position at different times of day to achieve a tracking effect, ensuring that the photovoltaic module 20 is shade-free throughout the year and receives direct sunlight at specific times of day, that is, can be perpendicularly irradiated by sunlight.

[0047] As can be seen, the accelerated aging device 10 provided above, by setting the support member 200 to a structure that can be extended vertically and the light-transmitting mounting frame to a structure that can install lenses 600 of different sizes, can change the light concentration factor of the lens 600 by changing the distance between the lens 600 and the photovoltaic module 20 and the area of ​​the lens 600. This can accurately simulate the light intensity, making the accelerated aging degree reasonable, and improving the versatility of experimental results. It can meet the needs of various practical scenarios and is also conducive to the optimization of photovoltaic module 20 design and material selection. In addition, by adding a position adjustment member 400, the device can change the position of the lens 600 according to the changes in the solar altitude angle with the seasons and the changes in the sun's position at different times of the day. This ensures that the photovoltaic module 20 is free from shadows throughout the year and receives direct frontal irradiation at specific times of the day, making the light intensity as consistent as possible with reality. This ensures the accuracy of the accelerated aging effect, allows for accurate quality assessment and life prediction of the photovoltaic module 20, and effectively evaluates the performance changes of the photovoltaic module 20 in different seasons, which is conducive to a comprehensive understanding of the performance of the photovoltaic module 20 and its reasonable application. In summary, the accelerated aging device 10 provided in this application can accurately simulate light intensity, make the degree of accelerated aging reasonable, ensure the accuracy of accelerated aging effect, and thus accurately assess the quality and predict the lifespan of photovoltaic module 20.

[0048] In some embodiments of this application, such as Figure 4 As shown, the lens mounting bracket 300 includes a first clamping member 310 and a second clamping member 320 disposed opposite to each other. The first clamping member 310 has a first clamping area 310a, and the second clamping member 320 has a second clamping area 320a facing the first clamping area 310a. The first clamping area 310a has a plurality of first clamping positions, and the second clamping area 320a has a plurality of second clamping positions. The second clamping positions can cooperate with corresponding first clamping positions to clamp lenses 600 of different sizes. The first clamping positions are continuously arranged in the first clamping area 310a, and the second clamping positions are continuously arranged in the second clamping area 320a, thus allowing for the clamping of lenses 600 of various sizes and improving the versatility of the device. Of course, in some other embodiments, only the first clamping area 310a or the second clamping area 320a has a plurality of first clamping positions.

[0049] like Figure 5As shown, the first clamping member 310 includes a first upper light-transmitting clamping plate 311, a first lower light-transmitting clamping plate 312, and a first fastener 313. The first upper light-transmitting clamping plate 311 and the first lower light-transmitting clamping plate 312 are arranged vertically at intervals. A first clamping area 310a is formed between the side of the first upper light-transmitting clamping plate 311 near the second clamping member 320 and the side of the first lower light-transmitting clamping plate 312 near the second clamping member 320. The first fastener 313 passes through the first upper light-transmitting clamping plate 311 and the first lower light-transmitting clamping plate 312 to fix the first upper light-transmitting clamping plate 311 and the first lower light-transmitting clamping plate 312 to the support member 200. Different sizes of lenses 600 extend into the first clamping area 310a to different lengths. In order not to affect the light focusing of different sizes of lenses 600, this application sets the clamping body of the first clamping member 310 (i.e. the first upper light-transmitting clamping plate 311 and the first lower light-transmitting clamping plate 312) to a light-transmitting material to facilitate the passage of light. If it is not set to a light-transmitting material, since the distance between the first clamping member 310 and the second clamping member 320 is constant, the effective light-gathering area of ​​different sizes of lenses 600 remains unchanged, and thus the light-gathering magnification of the lens 600 cannot be changed.

[0050] Optionally, the first upper light-transmitting plate 311 is made of glass, and the first lower light-transmitting plate 312 is made of glass.

[0051] Optionally, such as Figure 5 As shown, the first fastener 313 may be a threaded part, which may include a bolt 3131 and a nut 3132. The bolt 3131 passes through the first upper light-transmitting clamp 311 and the first lower light-transmitting clamp 312 and is connected to the corresponding mounting block in the mounting base 100. The nut 3132 is located between the first lower light-transmitting clamp 312 and the mounting block, which can improve the connection between the first upper light-transmitting clamp 311, the first lower light-transmitting clamp 312 and the mounting block.

[0052] To prevent the first clamping member 310 from damaging the lens 600 due to excessive clamping force, such as Figure 5As shown, the first upper light-transmitting clamp 311 has a first upper stop protrusion 3111 on the side near the first lower light-transmitting clamp 312, and the first lower light-transmitting clamp 312 has a first lower stop protrusion 3121 on the side near the first upper light-transmitting clamp 311. The first upper stop protrusion 3111 and the first lower stop protrusion 3121 can limit the distance between the first upper light-transmitting clamp 311 and the first lower light-transmitting clamp 312. When the first fastener 313 is screwed in to a certain extent, due to the limitation of the first upper stop protrusion 3111 and the first lower stop protrusion 3121, the first fastener 313 cannot continue to be screwed inward, so that the distance between the first upper light-transmitting clamp 311 and the first lower light-transmitting clamp 312 is within a safe range, avoiding damage to the lens 600. Of course, in some other embodiments, the first upper stop protrusion 3111 may be provided only on the side of the first upper light-transmitting clamp 311 near the first lower light-transmitting clamp 312, or the first lower stop protrusion 3121 may be provided only on the side of the first lower light-transmitting clamp 312 near the first upper light-transmitting clamp 311.

[0053] The number of the first upper stop protrusion 3111 and the first lower stop protrusion 3121 can both be set to two, with the two first upper stop protrusions 3111 and the two first lower stop protrusions 3121 distributed on both sides of the first fastener 313.

[0054] Similarly, the second clamping member 320 includes a second upper light-transmitting clamping plate, a second lower light-transmitting clamping plate, and a second fastener. The second upper light-transmitting clamping plate and the second lower light-transmitting clamping plate are arranged at an upper and lower interval. A second clamping area 320a is formed between the side of the second upper light-transmitting clamping plate near the second clamping member 320 and the side of the second lower light-transmitting clamping plate near the second clamping member 320. The second fastener passes through the second upper light-transmitting clamping plate and the second lower light-transmitting clamping plate to fix the second upper light-transmitting clamping plate and the second lower light-transmitting clamping plate to the support member 200. Different sizes of lenses 600 extend into the second clamping area 320a by different lengths. In order not to affect the light focusing of different sizes of lenses 600, this application sets the clamping body of the second clamping member 320 (i.e. the second upper light-transmitting clamping plate and the second lower light-transmitting clamping plate) to a light-transmitting material to facilitate the passage of light. If it is not set to a light-transmitting material, since the distance between the second clamping member 320 and the second clamping member 320 is constant, the effective light-gathering area of ​​different sizes of lenses 600 remains unchanged, and thus the light-gathering magnification of the lens 600 cannot be changed.

[0055] Optionally, the second upper light-transmitting plate is made of glass, and the second lower light-transmitting plate is made of glass.

[0056] Optionally, the second fastener may be a threaded component, which may include a bolt and a nut. The bolt thread passes through the second upper light-transmitting clamp and the second lower light-transmitting clamp and is connected to the corresponding mounting block in the mounting base 100. The nut is located between the second lower light-transmitting clamp and the mounting block, which can improve the connection between the second upper light-transmitting clamp, the second lower light-transmitting clamp and the mounting block.

[0057] To prevent the second clamping member 320 from damaging the lens 600 due to excessive clamping force, a second upper stop protrusion is provided on the side of the second upper light-transmitting clamp near the second lower light-transmitting clamp, and a second lower stop protrusion is provided on the side of the second lower light-transmitting clamp near the second upper light-transmitting clamp. The second upper and lower stop protrusions limit the distance between the second upper and lower light-transmitting clamps. When the second fastener is screwed in to a certain extent, the second fastener cannot be screwed in further due to the limiting effect of the second upper and lower stop protrusions, ensuring that the distance between the second upper and lower light-transmitting clamps remains within a safe range and preventing damage to the lens 600. Of course, in some other embodiments, the second upper stop protrusion may only be provided on the side of the second upper light-transmitting clamp near the second lower light-transmitting clamp, or the second lower stop protrusion may only be provided on the side of the second lower light-transmitting clamp near the second upper light-transmitting clamp.

[0058] The number of the second upper stop protrusion and the second lower stop protrusion can both be set to two, with the two second upper stop protrusions and the two second lower stop protrusions distributed on both sides of the second fastener.

[0059] In some embodiments of this application, such as Figure 1 As shown, the adjustment component 400 includes a first joint hinge mechanism 410 and a second joint hinge mechanism 420. The first joint hinge mechanism 410 is located between the upper end of the support member 200 and the lens mounting bracket 300, and the second joint hinge mechanism 420 is located between the lower end of the support member 200 and the mounting base 100. The first joint hinge mechanism 410 and the second joint hinge mechanism 420 enable the lens 600 to swing in the north-south direction, thereby adjusting the angle of the lens 600 in the north-south direction. This allows the photovoltaic module 20 to be perpendicularly illuminated by sunlight, based on seasonal changes in the solar altitude angle and the daily changes in the sun's position. By setting the first joint hinge mechanism 410 and the second joint hinge mechanism 420, tracking accuracy can be guaranteed. Of course, in some other embodiments, only the first joint hinge mechanism 410 or the second joint hinge mechanism 420 may be provided. The structure of the first joint hinge mechanism 410 and the second joint hinge mechanism 420 is the same as that of a traditional single-axis tracking mechanism.

[0060] Optionally, the accelerated aging device 10 may further include a first drive motor and a second drive motor. The first drive motor is connected to the rotating shaft of the first joint hinge mechanism 410, and the second drive motor is connected to the rotating shaft of the second joint hinge mechanism 420. The control module 700 mentioned above can be electrically connected to the first drive motor and the second drive motor, and can control the swing angle of the first joint hinge mechanism 410 and the second joint hinge mechanism 420 through relevant control algorithms. The first drive motor and the second drive motor may be stepper motors.

[0061] The adjusting component 400 can also be configured as follows, such as... Figure 6 As shown, the lens mounting bracket 300 includes a mounting frame 330; the adjusting member 400 includes two first slide rails 430 and two second slide rails 440 disposed on the mounting frame 330. The two first slide rails 430 can move towards each other or away from each other along a first horizontal direction, and the two second slide rails 440 can move towards each other or away from each other along a second horizontal direction. The two first slide rails 430 and the second slide rails 440 can form a lens 600 clamping area. By moving the first slide rails 430 and the second slide rails 440, the size of the lens 600 clamping area can be changed, allowing for the installation of lenses 600 of different sizes. The position of the lens 600 clamping area can also be changed, thereby changing the position of the lens 600 relative to the photovoltaic module 20. Thus, the adjusting member 400 not only adjusts the installation position of the lens 600 but also clamps and fixes lenses 600 of different sizes, simplifying the structure of the device. In some other embodiments, while the adjusting member 400 is configured as described above, a first joint hinge mechanism 410 may also be installed between the upper end of the support member 200 and the lens mounting bracket 300, or a second joint hinge mechanism 420 may be installed between the lower end of the support member 200 and the mounting base 100.

[0062] Among them, the direction of the first level is as follows: Figure 6 The direction of "X+" and "X-" in the first part is used as a reference, and the direction of the second horizontal line is based on... Figure 6 The "Y+" and "Y-" in the text refer to the direction of the text.

[0063] The movement of the first slide rail 430 in the first direction and the movement of the second slide rail 440 in the second direction can both be achieved through the cooperation of a motor and a transmission mechanism. The motor can be a rotary motor such as a stepper motor, and the transmission mechanism can be a lead screw and nut mechanism or a gear and belt mechanism. The motor can be electrically connected to the control module 700 mentioned above, which can precisely control the sliding position of the first slide rail 430 and the second slide rail 440.

[0064] In some embodiments of this application, such as Figure 1As shown, the accelerated aging device 10 also includes a functional bracket 500, which is disposed on the side of the lens mounting bracket 300. The functional bracket 500 can be used to mount measuring instruments, such as radiometers, temperature sensors, wind vanes, anemometers, etc., so that the device can be used not only for testing the aging resistance of materials, but also for other tests, which can increase the functionality of the accelerated aging device 10 and make its functions no longer singular.

[0065] Regarding the structure of the functional support 500, it can be configured according to requirements, for example, it can be set as follows: Figure 1 The flat plate structure shown can also be configured as an "L" shaped structure; this application does not impose specific limitations here.

[0066] The usage process of the accelerated aging device 10 is described below:

[0067] Step 1: Install the accelerated aging device 10 on the photovoltaic support 30 at the test site, and use bolts or other threaded parts to tighten it to ensure stable installation.

[0068] Step 2: Install the photovoltaic module 20 on the photovoltaic bracket 30, and adjust the position of the photovoltaic module 20 according to the actual size of the lens 600 and the concentrating area;

[0069] Step 3: Calculate and determine the distance between the photovoltaic module 20 and the lens 600 based on the required concentration factor and the area of ​​the lens 600. Then, use the control module 700 to control the support 200 to move up and down to achieve the required spacing.

[0070] Step 4: Based on the distance between the photovoltaic module 20 and the lens 600 and the changing pattern of the solar altitude angle, input relevant information into the control algorithm to enable the device to achieve real-time tracking.

[0071] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0072] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. An accelerated aging apparatus for photovoltaic modules, characterized by, The lens mounting frame comprises a first clamping member and a second clamping member arranged oppositely, the first clamping member has a first clamping area, and the second clamping member has a second clamping area facing the first clamping area. The first clamping member comprises a first upper light-transmitting clamping plate, a first lower light-transmitting clamping plate and a first fastener, the first upper light-transmitting clamping plate and the first lower light-transmitting clamping plate are arranged in an up-down manner, the first clamping area is formed between the first upper light-transmitting clamping plate and the first lower light-transmitting clamping plate, and the first fastener is arranged through the first upper light-transmitting clamping plate and the first lower light-transmitting clamping plate to fix the first upper light-transmitting clamping plate and the first lower light-transmitting clamping plate on the support. The second clamping member comprises a second upper light-transmitting clamping plate, a second lower light-transmitting clamping plate and a second fastener, the second upper light-transmitting clamping plate and the second lower light-transmitting clamping plate are arranged in an up-down manner, the second clamping area is formed between the second upper light-transmitting clamping plate and the second lower light-transmitting clamping plate, and the second fastener is arranged through the second upper light-transmitting clamping plate and the second lower light-transmitting clamping plate to fix the second upper light-transmitting clamping plate and the second lower light-transmitting clamping plate on the support. The first upper light-transmitting clamping plate is provided with a first upper stop protrusion on a side close to the first lower light-transmitting clamping plate, and / or the first lower light-transmitting clamping plate is provided with a first lower stop protrusion on a side close to the first upper light-transmitting clamping plate. The second upper light-transmitting clamping plate is provided with a second upper stop protrusion on a side close to the second lower light-transmitting clamping plate, and / or the second lower light-transmitting clamping plate is provided with a second lower stop protrusion on a side close to the second upper light-transmitting clamping plate. The adjusting member comprises a first articulated hinge mechanism and / or a second articulated hinge mechanism, the first articulated hinge mechanism is arranged between the upper end of the support and the lens mounting frame, and the second articulated hinge mechanism is arranged between the lower end of the support and the mounting base.

2. The accelerated aging device of claim 1, wherein, The lens mounting frame comprises a mounting frame; The adjusting member comprises two first sliding rails and two second sliding rails arranged on the mounting frame, the two first sliding rails can move towards or away from each other in a first horizontal direction, the two second sliding rails can move towards or away from each other in a second horizontal direction, and the two first sliding rails and the two second sliding rails can be arranged to form a lens clamping area.

3. The accelerated aging apparatus of claim 2, wherein The support comprises a power cylinder, a cylinder body of the power cylinder is connected with the mounting base, and a piston rod of the power cylinder is connected with the lens mounting frame. The mounting base is provided with a mounting groove, and the mounting groove horizontally penetrates the mounting base. The lens is a linear Fresnel lens.

4. The accelerated aging apparatus of claim 3, wherein ​ ​ 5. The accelerated aging apparatus of claim 1, wherein ​ 6. The accelerated aging apparatus of claim 1, wherein ​ ​ 7. The accelerated aging apparatus according to any one of claims 1 to 6, characterized in that ​ 8. The accelerated aging apparatus according to any one of claims 1 to 6, characterized in that ​ 9. The accelerated aging apparatus according to any one of claims 1 to 6, characterized in that, ​ 10. The accelerated aging apparatus according to any one of claims 1 to 6, characterized in that The accelerated aging device further includes a function support disposed to a side of the lens mounting rack.

Images