Multifunctional photovoltaic array test bracket and method

Abstract

The present invention discloses a multifunctional photovoltaic array test bracket in the field of photovoltaic testing devices, comprising: a mounting bracket, which is a rectangular body frame; a test base frame, which is a rectangular frame, and the test base frame is horizontally arranged at the lower part of the mounting bracket; a first sliding assembly, which is arranged on the test base frame; a mounting base plate, which is arranged on the lifting assembly, and the lifting assembly is slidably connected to the first sliding assembly through a second sliding assembly, the mounting base plate is used to install photovoltaic components, and the lifting assembly is used to adjust the inclination direction and height of the mounting base plate; and a lifting method; the beneficial effects of the present invention are: the height, angle and position of the mounting base plate are adjusted by the lifting assembly, the first sliding assembly and the second sliding assembly, which can adapt to a variety of test modes, has higher flexibility and versatility, and is precise in adjustment.

Description

Technical Field

[0001] The present invention relates to the technical field of photovoltaic testing devices, and in particular to a multifunctional photovoltaic array testing bracket and method. Background Art

[0002] Against the backdrop of the "dual carbon" strategy, the photovoltaic sector is experiencing rapid growth. PV modules often require testing for photoelectric efficiency, fire retardancy, and other factors. Currently, widely used specialized testing equipment, such as solar steady-state simulators, primarily targets the performance of individual PV modules. However, with the continuous development of the PV industry and the increasing installed capacity of distributed PV, the demand for PV array testing has become increasingly prominent. This includes testing the performance of various PV array configurations, as well as their reaction to fire and spread under fire conditions.

[0003] However, there is still a lack of test platforms specifically for photovoltaic arrays, which cannot meet the research needs of photovoltaic arrays with different array arrangements and installation angles. Even if some laboratories layout and test small-scale photovoltaic arrays in a single scenario for research needs, the test systems are often fixed and can only test the specific required tilt angles, spacing, etc., making it impossible to quickly and efficiently adjust and test the specific needs of different photovoltaic arrays (such as different tilt angles, spacing adjustments, and arrangement layouts), increasing testing costs and time consumption. At the same time, traditional brackets are difficult to fix to the precise angle required by manpower, further increasing testing costs and time consumption.

[0004] Therefore, existing technologies have the following shortcomings when facing the diverse testing needs of photovoltaic arrays:

[0005] 1. Lack of testing equipment: Currently, there is a lack of large-scale test system bracket components designed specifically for photovoltaic arrays, making it impossible to reproduce and test the interaction between the installation parameters of multiple photovoltaic modules and the performance of photovoltaic arrays and fire conditions in large-scale scenarios.

[0006] 2. Lack of testing flexibility: Existing components are mostly small-scale fixed-mode test systems that cannot flexibly reproduce the complex installation conditions, arrangement patterns, and usage scenarios in real installation scenarios, and fail to fully consider the diversity of photovoltaic arrays in actual applications.

[0007] 3. Inefficiency: Since a separate test device needs to be prepared for each layout, resource reuse is low, testing costs are high, and testing cycles are extended.

[0008] To this end, we propose a multifunctional photovoltaic array testing bracket and method. Summary of the Invention

[0009] In view of the above-mentioned deficiencies in the prior art, the present invention provides a multifunctional photovoltaic array testing bracket and method.

[0010] In order to achieve the above-mentioned object of the invention, the technical solution adopted by the present invention is:

[0011] A multifunctional photovoltaic array test bracket includes: a mounting bracket in the form of a rectangular frame; a test base frame in the form of a rectangular frame, the test base frame being horizontally arranged at the lower part of the mounting bracket; a first sliding assembly being arranged on the test base frame; a mounting base plate being arranged on the lifting assembly, the lifting assembly being slidably connected to the first sliding assembly via a second sliding assembly, the mounting base plate being used for mounting photovoltaic components, the lifting assembly being used for adjusting the inclination direction and height of the mounting base plate, the first sliding assembly being used for lateral movement of the mounting base plate and adjustment of the installation spacing of the lifting assembly, and the second sliding assembly being used for longitudinal movement of the mounting base plate and the lifting assembly.

[0012] By setting up a mounting bracket, the test base frame is installed at the lower part of the mounting bracket, and the mounting base plate is installed on the second sliding assembly through a lifting assembly. The second sliding assembly is slidably connected to the first sliding assembly. This allows the mounting base plate for installing photovoltaic panels to be adjusted in height and angle on the test base frame, and can also be adjusted in horizontal and vertical position. This setting increases the versatility and flexibility of the test and can be adjusted to adapt to various test layouts.

[0013] It is further defined that a plurality of mounting rods are evenly spaced along the length direction of the mounting bracket at the top of the mounting bracket, and a plurality of support rods connected to the bottom of the mounting bracket are vertically provided at the bottom of the test base frame; by arranging a plurality of mounting rods at the top of the mounting bracket, test instruments, sensors and shading auxiliary devices can be installed on the mounting rods to meet different testing requirements.

[0014] The cam is connected to the first gear of the driving member and the transmission gear of the transmission gear is connected with the first gear of the driving member and the transmission gear of the transmission gear is connected with the first gear of the driving member.

[0015] It is further defined that the lifting assembly includes a lifting rod and a lifting drive, the mounting base is connected to the top of the lifting rod through a universal joint, the lifting rod is slidably connected to the lifting drive, the second sliding assembly includes a second slide rail, a second slider, a second rack and a second drive motor, the second slide rail is arranged on the side walls of the two sliding rods along the length direction of the sliding rod, the second slider and the second slide rail are slidably connected, the lifting drive is fixedly connected to the second slider, the second drive motor is fixed on the second slider, the second rack is arranged in the second slide rail along the length direction of the second slide rail, the output shaft end of the second drive motor passes through the second slider, and the output shaft end of the second drive motor is provided with a second gear meshing with the second rack.

[0016] It is further defined that the lifting drive includes a lifting slide rail, a lifting block, a lifting rack and a lifting motor; the lifting slide rail is arranged on the lifting rod along the length direction of the lifting rod, the lifting rack is arranged in the lifting slide rail, the lifting block and the lifting slide rail are slidingly connected, and the lifting block is also fixedly connected to the second block, the lifting motor is fixedly arranged on the lifting block, the output shaft of the lifting motor passes through the lifting block, and the end of the output shaft of the lifting motor is provided with a lifting gear that meshes with the lifting rack.

[0017] It is further defined that the universal joint includes a universal top plate, a universal bottom plate, a universal ball and a ball accommodating tube; the universal bottom plate is fixed on the top of the lifting rod, the universal top plate is fixed on the bottom surface of the mounting bottom plate, the universal ball is fixed on the universal bottom plate through a rod, the ball accommodating tube is fixed on the mounting top plate, and the universal ball is clamped in the ball accommodating tube.

[0018] It is further defined that the lifting motor is a stepper motor; using a stepper motor as the lifting motor to adjust the angle of the mounting base plate makes the adjustment more precise, and the stepper motor has a self-locking function and will not slide by itself.

[0019] A lifting method for the multifunctional photovoltaic array test stand includes the following steps:

[0020] S1: Calculate the target height. The length and width of the mounting plate are L and W, and the target angle of the mounting plate is θ. t When the mounting base is tilted along the length direction, according to the target angle θ t Calculate the target height difference h of the installation base plate in the longitudinal direction tL :

[0021]

[0022] When the target angle θ t When tilted along the width direction, according to the target angle θ t Calculate the target height difference h of the mounting base tilted in the wide side direction tW :

[0023]

[0024] S2: Adjust the height of the lifting rods. When the installation base is completely horizontal, the initial height of the first lifting rod is l1, the initial height of the second lifting rod is l2, the initial height of the third lifting rod is l3, and the initial height of the fourth lifting rod is l4. The first lifting rod and the third lifting rod are set diagonally, and the second lifting rod and the fourth lifting rod are set diagonally. When the installation base is tilted in the longitudinal direction, according to the target height difference h of the installation base in the longitudinal direction in step S1, tL Calculate the height of each lifting rod after adjustment:

[0025]

[0026]

[0027]

[0028]

[0029] Wherein, l1′ is the height after the first lifting rod is adjusted, l2′ is the height after the second lifting rod is adjusted, l3′ is the height after the third lifting rod is adjusted, and l4′ is the height after the fourth lifting rod is adjusted;

[0030] When the installation base is tilted along the width direction, the target height difference h of the installation base tilted in the width direction in step S1 is calculated. tW Calculate the height of each lifting rod after adjustment:

[0031]

[0032]

[0033]

[0034]

[0035] S3: Calculate the number of rotation steps of the lifting motor according to the height adjustment of the lifting rod: When the mounting base is tilted along the width direction, the number of rotation steps of the lifting motor is:

[0036]

[0037] When the mounting base is tilted along the length direction, the number of rotation steps of the lifting motor is:

[0038]

[0039] Among them, a s is the step angle of the lifting motor, N sis the number of rotation steps of the lifting motor, and r is the distance the lifting rod height changes when the lifting motor rotates one step.

[0040] The beneficial effects of the present invention are: the height, angle and position of the mounting base plate are adjusted by the lifting assembly, the first sliding assembly and the second sliding assembly, which can adapt to various test modes, has higher flexibility and versatility, and can be adjusted accurately. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 It is a simple three-dimensional schematic diagram of the present invention;

[0042] Figure 2 is a partial structural diagram of the second sliding assembly;

[0043] Figure 3 It is a structural diagram of the universal joint;

[0044] Figure 4 is a structural schematic diagram of the first sliding assembly;

[0045] Figure 5 Schematic diagram of the coordination between the lifting assembly and the second sliding assembly.

[0046] The symbols of the components are as follows:

[0047] Mounting bracket 1, mounting rod 11, support rod 12, test base 2, horizontal long rod 21, horizontal wide rod 22, first sliding assembly 3, sliding rod 31, first slide rail 32, first slider 33, first drive motor 34, mounting base 4, second sliding assembly 5, second slide rail 51, second slider 52, second rack 53, second drive motor 54, lifting assembly 6, lifting rod 61, lifting slide rail 62, lifting slider 63, lifting motor 64, universal joint 7, universal top plate 71, universal base plate 72, universal ball 73, ball container 74. DETAILED DESCRIPTION

[0048] The specific embodiments of the present invention are described below to facilitate understanding of the present invention by those skilled in the art. However, it should be clear that the present invention is not limited to the scope of the specific embodiments. For those skilled in the art, as long as various changes are within the spirit and scope of the present invention as defined and determined by the appended claims, these changes are obvious, and all inventions and creations utilizing the concepts of the present invention are protected.

[0049] Example:

[0050] like Figure 1-Figure 5As shown, a multifunctional photovoltaic array test bracket comprises a mounting bracket 1, a test base frame 2, a first sliding assembly 3, a mounting base plate 4, a second sliding assembly 5 and a lifting assembly 6; the mounting bracket 1 is a rectangular frame; a plurality of mounting rods 11 are evenly spaced at the top of the mounting bracket 1 along the length direction of the mounting bracket 1, and a plurality of support rods 12 connected to the bottom of the mounting bracket 1 are vertically provided at the bottom of the test base frame 2; the test base frame 2 is a rectangular frame, and the test base frame 2 is horizontally arranged at the lower part of the mounting bracket 1, and the test base frame 2 includes two horizontal long rods 21 in the length direction and two horizontal wide rods 22 in the width direction; the first sliding assembly 3 is arranged on the test base frame 2, and the first The sliding assembly 3 includes at least two sliding rods 31, a first sliding rail 32, a first slider 33, a first rack and a first driving motor 34. The first sliding rail 32 is arranged on the inner side of the two horizontal long rods 21. The two ends of the two sliding rods 31 are fixedly connected to the first slider 33 respectively. The first slider 33 and the first sliding rail 32 are slidably connected. The first driving motor 34 is fixed on the first slider 33. The first rack is arranged in the first sliding rail 32 along the length direction of the first sliding rail 32. The output shaft end of the first driving motor 34 passes through the first slider 33, and the output shaft end of the first driving motor 34 is provided with a first gear meshing with the first rack; the mounting base 4 is arranged on the lifting The lifting assembly 6 is connected to the first sliding assembly 3 through the second sliding assembly 5. The installation base plate 4 is used to install photovoltaic modules. The lifting assembly 6 is used to adjust the inclination direction and height of the installation base plate 4. The first sliding assembly 3 is used for the lateral movement of the installation base plate 4 and the adjustment of the installation spacing of the lifting assembly 6. The second sliding assembly 5 is used for the longitudinal movement of the installation base plate 4 and the lifting assembly 6; the lifting assembly 6 includes a lifting rod 61 and a lifting drive. The installation base plate 4 is connected to the top of the lifting rod 61 through a universal joint 7. The lifting rod 61 is slidably connected to the lifting drive. The second sliding assembly 5 includes a second slide rail 51, a second slider 52, and a second rack. 53 and a second drive motor 54, the second slide rail 51 is provided on the side walls of the two slide rods 31 along the length direction of the slide rod 31, the second slider 52 is slidably connected to the second slide rail 51, the lifting driver is fixedly connected to the second slider 52, the second drive motor 54 is fixedly provided on the second slider 52, the second rack 53 is provided in the second slide rail 51 along the length direction of the second slide rail 51, the output shaft end of the second drive motor 54 passes through the second slider 52, and the output shaft end of the second drive motor 54 is provided with a second gear meshing with the second rack 53; the lifting driver includes a lifting rail 62, a lifting slider 63, a lifting rack and a lifting motor 64;The lifting rail 62 is provided on the lifting rod 61 along the length direction of the lifting rod 61, the lifting rack is provided in the lifting rail 62, the lifting slider 63 is slidably connected to the lifting rail 62, and the lifting slider 63 is also fixedly connected to the second slider 52, the lifting motor 64 is fixedly provided on the lifting slider 63, the output shaft of the lifting motor 64 passes through the lifting slider 63, and the output shaft end of the lifting motor 64 is provided with a lifting gear meshing with the lifting rack, and the lifting motor 64 is a stepping motor; the universal joint 7 includes a universal top plate 7 1. Universal base plate 72, universal ball 73, and ball receiving cylinder 74; universal base plate 72 is fixed to the top of lift rod 61, universal top plate 71 is fixed to the bottom surface of mounting base plate 4, universal ball 73 is fixed to universal base plate 72 via a rod, ball receiving cylinder 74 is fixed to the mounting top plate, and universal ball 73 is clamped in ball receiving cylinder 74; first sliding assembly 3, second sliding assembly 5, and lifting assembly 6 all use the same structure, and first drive motor 34 and second drive motor 54 are also stepper motors.

[0051] By setting up a mounting bracket 1, the test base frame 2 is installed at the lower part of the mounting bracket 1, and the mounting base plate 4 is installed on the second sliding assembly 5 through the lifting assembly 6, and the second sliding assembly 5 is slidably connected to the first sliding assembly 3, so that the mounting base plate 4 for installing the photovoltaic panel can be adjusted in height and angle on the test base frame 2, and can also be adjusted in lateral and longitudinal position. This setting increases the versatility and flexibility of the test and can be adjusted to adapt to a variety of test layouts; by setting up a number of mounting rods 11 on the top of the mounting bracket 1, test instruments, sensors and shading auxiliary devices can be installed on the mounting rods 11 to meet different test requirements; the first drive motor 34 rotates to drive the first gear to rotate, and the first gear engages with the first rack so that the first gear drives the first slider 33 to move in the first slide rail 32 during rotation, thereby completing the movement adjustment of the sliding rod 31, and the use of motor drive adjustment is more efficient; a stepping motor is used as the lifting motor 64 to adjust the angle of the mounting base plate 4, and the adjustment is more precise, and the stepping motor has a self-locking function and will not slide by itself.

[0052] A lifting method for the multifunctional photovoltaic array test stand includes the following steps:

[0053] S1: Calculate the target height. The length and width of the mounting base 4 are L and W, and the target angle of the mounting base 4 is θ. t When the mounting base 4 is tilted along the length direction, according to the target angle θ t Calculate the target height difference h of the installation base plate 4 in the longitudinal direction tL :

[0054]

[0055] When the target angle θ t When tilted along the width direction, according to the target angle θ t Calculate the target height difference h of the mounting base plate 4 when tilted in the wide side direction tW :

[0056]

[0057] S2: Adjust the height of the lifting rod 61. When the installation base plate 4 is completely horizontal, the initial height of the first lifting rod is l1, the initial height of the second lifting rod is l2, the initial height of the third lifting rod is l3, and the initial height of the fourth lifting rod is l4. The first lifting rod and the third lifting rod are set diagonally, and the second lifting rod and the fourth lifting rod are set diagonally. When the installation base plate 4 is tilted in the longitudinal direction, according to the target height difference h of the installation base plate 4 in the longitudinal direction in step S1, tL Calculate the height of each lifting rod 61 after adjustment:

[0058]

[0059]

[0060]

[0061]

[0062] Wherein, l1′ is the height after the first lifting rod is adjusted, l2′ is the height after the second lifting rod is adjusted, l3′ is the height after the third lifting rod is adjusted, and l4′ is the height after the fourth lifting rod is adjusted;

[0063] When the installation base plate 4 is tilted in the width direction, the target height difference h of the installation base plate 4 in the width direction in step S1 is obtained. tW Calculate the height of each lifting rod 61 after adjustment:

[0064]

[0065]

[0066]

[0067]

[0068] S3: Calculate the number of rotation steps of the lifting motor 64 according to the height adjustment of the lifting rod 61: When the mounting base 4 is tilted along the width direction, the number of rotation steps of the lifting motor 64 is:

[0069]

[0070] When the mounting base 4 is tilted along the length direction, the number of rotation steps of the lifting motor 64 is:

[0071]

[0072] Among them, a s is the step angle of the lifting motor 64, N s is the number of rotation steps of the lifting motor 64, and r is the distance the height of the lifting rod 61 changes when the lifting motor 64 rotates one step.

Claims

1. A multifunctional photovoltaic array test bracket, characterized in that: include: A mounting bracket (1) having a rectangular frame; The test base frame (2) is in the shape of a rectangular frame, and the test base frame (2) is horizontally arranged at the lower part of the mounting bracket (1); the test base frame (2) includes two horizontal long rods (21) in the length direction and two horizontal wide rods (22) in the width direction, and a first sliding assembly (3) is arranged on the test base frame (2); the first sliding assembly (3) includes two or more sliding rods (31), a first sliding rail (32), a first slider (33), a first rack and a first driving motor (34), and the first sliding rail (32) is arranged inside the two horizontal long rods (21). On the side, both ends of the two sliding rods (31) are fixedly connected to the first slider (33) respectively, the first slider (33) and the first slide rail (32) are slidably connected, the first drive motor (34) is fixedly arranged on the first slider (33), the first rack is arranged in the first slide rail (32) along the length direction of the first slide rail (32), the output shaft end of the first drive motor (34) passes through the first slider (33), and the output shaft end of the first drive motor (34) is provided with a first gear meshing with the first rack; The mounting base plate (4) is provided on the lifting assembly (6), and the lifting assembly (6) is slidably connected to the first sliding assembly (3) via a second sliding assembly (5). The mounting base plate (4) is used for mounting photovoltaic modules, and the lifting assembly (6) is used for adjusting the tilt direction and height of the mounting base plate (4). The first sliding assembly (3) is used for the lateral movement of the mounting base plate (4) and the adjustment of the installation spacing of the lifting assembly (6). The second sliding assembly (5) is used for the longitudinal movement of the mounting base plate (4) and the lifting assembly (6).

2. The multifunctional photovoltaic array test bracket according to claim 1, characterized in that: The top of the mounting bracket (1) is provided with a plurality of mounting rods (11) at even intervals along the length direction of the mounting bracket (1), and the bottom of the test chassis (2) is vertically provided with a plurality of support rods (12) connected to the bottom of the mounting bracket (1).

3. The multifunctional photovoltaic array test bracket according to claim 1, characterized in that: The lifting assembly (6) includes a lifting rod (61) and a lifting driver. The mounting base (4) is connected to the top of the lifting rod (61) through a universal joint (7). The lifting rod (61) is slidably connected to the lifting driver. The second sliding assembly (5) includes a second slide rail (51), a second slider (52), a second rack (53) and a second drive motor (54). The second slide rail (51) is provided on the side walls of the two slide rods (31) along the length direction of the slide rod (31). The second slider (52) and the second slide rail (51) are slidably connected. The lifting driver is fixedly connected to the second slider (52). The second drive motor (54) is fixedly provided on the second slider (52). The second rack (53) is provided in the second slide rail (51) along the length direction of the second slide rail (51). The output shaft end of the second drive motor (54) passes through the second slider (52), and the output shaft end of the second drive motor (54) is provided with a second gear meshing with the second rack (53).

4. The multifunctional photovoltaic array test bracket according to claim 3, characterized in that: The lifting drive comprises a lifting rail (62), a lifting slider (63), a lifting rack and a lifting motor (64); the lifting rail (62) is arranged on the lifting rod (61) along the length direction of the lifting rod (61), the lifting rack is arranged in the lifting rail (62), the lifting slider (63) and the lifting rail (62) are slidably connected, and the lifting slider (63) is also fixedly connected to the second slider (52), the lifting motor (64) is fixedly arranged on the lifting slider (63), the output shaft of the lifting motor (64) passes through the lifting slider (63), and the output shaft end of the lifting motor (64) is provided with a lifting gear meshing with the lifting rack.

5. The multifunctional photovoltaic array test bracket according to claim 3, characterized in that: The universal joint (7) comprises a universal top plate (71), a universal bottom plate (72), a universal ball (73) and a ball accommodating cylinder (74); the universal bottom plate (72) is fixedly arranged on the top of the lifting rod (61), the universal top plate (71) is fixedly arranged on the bottom surface of the mounting base plate (4), the universal ball (73) is fixedly arranged on the universal bottom plate (72) through a rod, the ball accommodating cylinder (74) is fixedly arranged on the universal top plate (71), and the universal ball (73) is clamped in the ball accommodating cylinder (74).

6. The multifunctional photovoltaic array test bracket according to claim 4, characterized in that: The lifting motor (64) is a stepping motor.

7. A lifting method for the multifunctional photovoltaic array test stand according to any one of claims 1 to 6, characterized in that: The steps include: S1: Calculate the target height and the length of the installation base plate (4) , width is , the target angle of the mounting base (4) is adjusted to , when the mounting base (4) is tilted along the length direction, according to the target angle Calculate the target height difference of the mounting base plate (4) in the longitudinal direction : When the target angle When tilting along the width direction, according to the target angle Calculate the target height difference of the mounting base plate (4) tilted in the wide side direction : S2: Adjust the height of the lifting rod (61). When the installation base (4) is completely in a horizontal state, the initial height of the first lifting rod is , the initial height of the second lifting rod is , the initial height of the third lifting rod is , the initial height of the fourth lifting rod is The first lifting rod and the third lifting rod are arranged diagonally, and the second lifting rod and the fourth lifting rod are arranged diagonally. When the mounting base (4) is tilted in the longitudinal direction, the target height difference of the mounting base (4) in the longitudinal direction in step S1 is Calculate the height of each lifting rod (61) after adjustment: in, is the height of the first lifting rod after adjustment, The height of the second lifting rod after adjustment. The height of the third lifting rod after adjustment. The height of the fourth lifting rod after adjustment; When the mounting base plate (4) is tilted in the width direction, the target height difference of the mounting base plate (4) tilted in the width direction in step S1 is obtained. Calculate the height of each lifting rod (61) after adjustment: S3: Calculate the number of rotation steps of the lifting motor (64) according to the height adjustment of the lifting rod (61): When the mounting base (4) is tilted along the width direction, the number of rotation steps of the lifting motor (64) is: When the mounting base (4) is tilted along the length direction, the number of rotation steps of the lifting motor (64) is: in, is the step angle of the lifting motor (64), is the number of rotation steps of the lifting motor (64), The distance that the height of the lifting rod (61) changes with each rotation of the lifting motor (64).

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