Photovoltaic cell testing device

Abstract

The invention belongs to the technical field of photovoltaic cell testing, and provides a photovoltaic cell testing device which comprises a box body, a plurality of inner cavities are formed in the box body at intervals, the inner end faces of the inner cavities are fixedly connected with electric lifting seats, the telescopic ends of the electric lifting seats are rotationally connected with gear shafts, and the gear shafts are rotationally connected with the gear shafts. All the gear shafts are jointly connected with a driving assembly, and the driving assembly can drive all the gear shafts to rotate at the same time. According to the invention, all the electric lifting seats drive the corresponding photovoltaic cells to be adjusted to the preset height, so that the distances between all the photovoltaic cells and the solar simulator are fixed; and then the driving assembly is started, and the driving assembly can drive all the gear shafts to rotate at the same time, so that the illumination angles of all the photovoltaic cells are adjusted at the same time.

Description

Technical Field

[0001] The invention belongs to the technical field of photovoltaic cell testing, and in particular relates to a photovoltaic cell testing device. Background Art

[0002] A solar cell is a photoelectric semiconductor wafer that uses sunlight to generate electricity directly. It is also called a "solar chip" or "photovoltaic cell". As long as it is illuminated by light that meets certain illumination conditions, it can instantly output voltage and generate current in the presence of a circuit.

[0003] A photovoltaic cell testing device with the existing publication number CN213846615U includes a frame, a simulation component, a first placement seat, a second placement seat, a controller, a power supply, a display module, a light intensity sensor, a linear motor and an angle sensor. The utility model utilizes a first driving gear to drive the photovoltaic cell to rotate around a positioning column to detect the storage capacity of the photovoltaic cell at different inclination angles; and utilizes a second driving gear to adjust the light intensity of the simulation component to detect the storage capacity of the photovoltaic cell at different light intensities and different inclination angles.

[0004] In this invention, when testing photovoltaic cells, the storage capacity of the photovoltaic cells under different light intensities and different inclination angles is detected; however, during the test, the external temperature and wind speed environment of the photovoltaic cells will affect the test results of the photovoltaic cells. The existing photovoltaic cell testing device does not effectively control the variables of the external environment, and cannot test photovoltaic cells under different environmental conditions during the test. Summary of the invention

[0005] The purpose of the present invention is to provide a photovoltaic cell testing device, aiming to solve the technical problems that the existing photovoltaic cell testing device does not effectively control variables of the external environment and cannot test photovoltaic cells under different environmental conditions during testing.

[0006] The present invention is implemented as follows: a photovoltaic cell testing device comprises a box body, wherein a plurality of inner cavities are arranged inside the box body, an inner end surface of the inner cavity is fixedly connected to an electric lifting seat, the telescopic ends of the electric lifting seat are all rotatably connected to gear shafts, and a driving assembly is commonly connected between all the gear shafts, and the driving assembly can drive all the gear shafts to rotate simultaneously;

[0007] The gear shafts are all fixedly connected to a support plate, a limiting groove for placing photovoltaic cells is provided in the support plate, the bottom of the limiting groove is mesh-shaped, the support plate is fixedly connected to an arc-shaped shell plate, a guide port is provided between the arc-shaped shell plate and the support plate, a plurality of air inlets are provided at one end of the arc-shaped shell plate away from the guide port, the support plate is fixedly connected to an induced draft fan, the induced draft fan is directly opposite to the air inlet, a solar simulator is fixedly connected to the side wall of the inner cavity, and the solar simulator is located above the limiting groove;

[0008] A diversion mechanism for guiding wind force is provided on one side of the air inlet, an electric heating component capable of generating heat is provided in the arc-shaped shell plate, the support plate is fixedly connected to a support frame, the support frame is connected to an air guide mechanism, and the air guide mechanism is used to guide and disperse the hot air;

[0009] The control system can control the heating uniformity and wind uniformity of the photovoltaic cells by controlling the diversion mechanism, the electric heating component and the wind guide mechanism.

[0010] Further technical solution: the diversion mechanism includes a diversion plate, a spring No. 1, a motor No. 1, and a cam No. 1;

[0011] A diverter plate is provided on one side of the air inlet, and all the diverter plates are rotatably connected to the inner wall of the arc-shaped shell plate. A No. 1 spring is provided between two adjacent diverter plates. The support plate is fixedly connected to a No. 1 motor, and the output shaft of the No. 1 motor is fixedly connected to a No. 1 cam, which is elastically abutted against the diverter plate on one side.

[0012] Further technical solution: The electric heating component includes an electric heating mesh plate and a second electric rod, the electric heating mesh plate is rotatably connected to the end surface of the support plate, and the second electric rod is rotatably connected between the electric heating mesh plate and the support plate.

[0013] Further technical solution: the air guide mechanism includes an air guide slot, an air guide plate and a power assembly;

[0014] The end surface of the support frame is fixedly connected with an air guide groove, and the end surface of the support frame is rotatably connected with an air guide plate, an elastic torsion spring is connected between the air guide plate and the rotating seat on the support frame, and the support frame is fixedly connected with a power component, and the power component can drive the air guide plate to swing continuously.

[0015] Further technical solution: The outer wall of the air guide groove is rotatably connected to a plurality of filter plates in sequence, and the rotational connection between the filter plate and the outer wall of the air guide groove is connected to an elastic torsion spring, and a plurality of protrusions are fixedly connected to the air guide plate, and each protrusion abuts against a filter plate.

[0016] Further technical solution: The power assembly includes a No. 2 motor and a No. 2 cam, the No. 2 motor is fixedly connected to the support frame, the No. 2 cam is fixedly connected to the output shaft of the No. 2 motor, and the No. 2 cam is elastically abutted against the air guide plate.

[0017] Further technical solution: the driving assembly includes a guide rail, a rack rod and a No. 1 electric rod;

[0018] The telescopic ends of the electric lifting seat are commonly connected with a guide rail, a rack rod is slidably connected to the guide rail, the rack rod is meshed with all gear shafts, and a No. 1 electric rod is fixedly connected between the guide rail and the rack rod.

[0019] Further technical solution: a control system comprising:

[0020] A monitoring module, comprising two temperature sensors and two wind speed sensors, wherein two end surfaces of the support plate are each provided with a temperature sensor and a wind speed sensor;

[0021] A storage module, which is used to store the temperature values ​​of all temperature sensors and the wind speed values ​​of the wind speed sensors;

[0022] A processing module, which is used to compare the temperature difference between the two temperature sensors or the wind speed difference between the two wind speed sensors with a preset wind speed difference threshold value and form judgment information;

[0023] The control module is used to regulate the diversion mechanism, the electric heating component and the air guide mechanism.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] 1. Start all electric lifts, and all electric lifts drive the corresponding photovoltaic cells to adjust to a predetermined height, so that the distance between all photovoltaic cells and the solar simulator is fixed; then start the drive assembly, which can drive all gear shafts to rotate simultaneously, so as to adjust the illumination angle of all photovoltaic cells at the same time;

[0026] 2. Start the electric heating component to raise the ambient temperature in the inner cavity. At this time, the induced draft fan blows air to the air inlet, and the diversion mechanism guides the wind force, so that the electric heating component heats the bottom of the photovoltaic cell in the limit groove. At the same time, the hot air passes through the guide port, and then the air guide mechanism guides and disperses the hot air, thereby heating the upper end surface of the photovoltaic cell, so that the hot air circulates around the photovoltaic cell for heating;

[0027] 3. Under the guidance of the diverter plate, part of the wind blows toward the electric heating mesh plate, thereby dissipating the heat of the electric heating mesh plate to the photovoltaic cells in the limiting groove, thereby heating the bottom of the photovoltaic cells. Under the guidance of the inner end surface of the arc-shaped shell plate, another part of the wind is discharged from the guide port. At the same time, the inner end surface of the arc-shaped shell plate can guide part of the wind, thereby increasing the uniformity of heating at the bottom of the photovoltaic cells.

[0028] 4. When the temperature difference between the two temperature sensors exceeds the temperature difference between the two temperature sensors, the control module changes the telescopic length of the No. 2 electric rod, thereby changing the heating efficiency of the electric heating grid plate on the bottom of the photovoltaic cell and adjusting the heating uniformity between the two end faces of the photovoltaic cell; changing the speed of the No. 1 motor and the No. 2 motor can change the swing range of the diverter plate and the air guide plate and adjust the heating uniformity of a single end face of the photovoltaic cell;

[0029] 5. When the wind speed difference between the two wind speed sensors exceeds the wind speed difference threshold of the two wind speed sensors, the control module controls the change of the rotation speed of motor No. 1 and motor No. 2, which can change the swing range of the diverter plate and the wind guide plate, and improve the overall wind uniformity of the photovoltaic cells. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0031] Figure 2 It is a schematic diagram of the internal structure of the box in the present invention.

[0032] Figure 3 It is a schematic diagram of the connection between the drive assembly and all gear shafts in the present invention.

[0033] Figure 4 It is a schematic structural diagram of the support plate and the arc-shaped shell plate in the present invention.

[0034] Figure 5 It is a schematic diagram of the internal structure of the arc-shaped shell plate in the present invention.

[0035] Figure 6 It is a schematic diagram of the coordination between the diversion mechanism and the electric heating component in the present invention.

[0036] Figure 7 for Figure 6 Schematic diagram of the enlarged structure of area A in the middle.

[0037] Figure 8 It is a structural schematic diagram of the air guide mechanism in the present invention.

[0038] Fig. 9 It is a schematic diagram of the cooperation between the filter plate and the air guide plate in the present invention.

[0039] In the attached drawings: 1. Box body; 2. Inner cavity; 3. Electric lifting seat; 4. Guide port; 5. Drive assembly; 51. Guide rail; 52. Rack rod; 53. No. 1 electric rod; 6. Diverter mechanism; 61. Diverter plate; 62. No. 1 spring; 63. No. 1 motor; 64. No. 1 cam; 7. Electric heating assembly; 71. Electric heating mesh plate; 72. No. 2 electric rod; 8. Air guide mechanism; 81. Air guide slot; 82. Air guide plate; 83. Power assembly; 831. No. 2 motor; 832. No. 2 cam; 9. Filter plate; 10. Gear shaft; 11. Support plate; 12. Solar simulator; 13. Arc shell plate; 14. Air inlet; 15. Support frame; 16. Draft fan; 17. Limiting slot. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0041] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0042] like Figure 1-Figure 9 As shown, a photovoltaic cell testing device provided by the present invention comprises a box body 1, wherein a plurality of inner chambers 2 are arranged at intervals inside the box body 1, and an electric lifting seat 3 is fixedly connected to the inner end surface of the inner chamber 2, and the telescopic ends of the electric lifting seat 3 are all rotatably connected to gear shafts 10, and a driving assembly 5 is commonly connected between all gear shafts 10, and the driving assembly 5 can drive all gear shafts 10 to rotate simultaneously;

[0043] The gear shafts 10 are all fixedly connected to a support plate 11, and a limiting groove 17 for placing photovoltaic cells is provided in the support plate 11, and the bottom of the limiting groove 17 is mesh-shaped, and the support plate 11 is fixedly connected to an arc-shaped shell plate 13, and a guide port 4 is provided between the arc-shaped shell plate 13 and the support plate 11, and a plurality of air inlets 14 are provided at one end of the arc-shaped shell plate 13 away from the guide port 4, and the support plate 11 is fixedly connected to an induced draft fan 16, and the induced draft fan 16 is directly opposite to the air inlet 14, and the side wall of the inner cavity 2 is fixedly connected to a solar simulator 12, and the solar simulator 12 is located above the limiting groove 17;

[0044] A diversion mechanism 6 for guiding wind force is provided on one side of the air inlet 14, an electric heating component 7 capable of generating heat is provided in the arc-shaped shell plate 13, a support frame 15 is fixedly connected to the support plate 11, and the support frame 15 is connected to an air guide mechanism 8, and the air guide mechanism 8 is used to guide and disperse the hot air;

[0045] The control system can control the heating uniformity and wind uniformity of the photovoltaic cells by controlling the diversion mechanism 6, the electric heating component 7 and the wind guide mechanism 8.

[0046] In this embodiment, the box body 1 is provided with a cover plate for sealing, the cover plate of the box body 1 is opened, a photovoltaic cell is placed in each limit groove 17, all electric lifting seats 3 are started, and all electric lifting seats 3 drive the corresponding photovoltaic cells to adjust to a predetermined height, so that the distance between all photovoltaic cells and the solar simulator 12 is fixed; then the driving component 5 is started, and the driving component 5 can drive all gear shafts 10 to rotate simultaneously, so as to adjust the illumination angle of all photovoltaic cells at the same time;

[0047] Then, the cover of the box body 1 is closed, and the electric heating component 7 is started to heat up the ambient temperature in the inner cavity 2. At this time, the induced draft fan 16 blows air to the air inlet 14, and the diversion mechanism 6 guides the wind force, so that the electric heating component 7 heats the bottom of the photovoltaic cell in the limiting groove 17. At the same time, the hot air passes through the guide port 4, and then the air guide mechanism 8 guides and disperses the hot air, thereby heating the upper end surface of the photovoltaic cell, so that the hot air circulates and heats around the photovoltaic cell;

[0048] By regulating the control current of the solar simulator 12 and the heating power of the electric heating component 7, the wind speed and temperature around the photovoltaic cell can be controlled.

[0049] like Figure 7 As shown, a photovoltaic cell testing device provided by the present invention, the shunt mechanism 6 includes a shunt plate 61, a first spring 62, a first motor 63, and a first cam 64;

[0050] A diverter plate 61 is provided on one side of the air inlet 14, and all the diverter plates 61 are rotatably connected to the inner wall of the arc-shaped shell plate 13. A spring 62 is provided between two adjacent diverter plates 61. The support plate 11 is fixedly connected to a motor 63, and the output shaft of the motor 63 is fixedly connected to a cam 64. The cam 64 elastically abuts against the diverter plate 61 on one side.

[0051] In this embodiment, the No. 1 motor 63 is started, the No. 1 motor 63 drives the No. 1 cam 64 to rotate, and the No. 1 cam 64 pushes the diverter plate 61 on one side thereof to swing. Under the action of all the No. 1 springs 62, all the diverter plates 61 swing at the same time, thereby guiding the wind force blown in by the induced draft fan 16.

[0052] like Figure 5As shown, a photovoltaic cell testing device provided by the present invention, the electric heating component 7 includes an electric heating mesh plate 71 and a second electric rod 72, the electric heating mesh plate 71 is rotatably connected to the end surface of the support plate 11, and the second electric rod 72 is rotatably connected between the electric heating mesh plate 71 and the support plate 11.

[0053] In this embodiment, the electric heating mesh plate 71 can be powered on and generate heat, and the second electric rod 72 is activated to extend and retract, and the second electric rod 72 drives the electric heating mesh plate 71 to rotate, thereby adjusting the distance between the electric heating mesh plate 71 and the support plate 11, and changing the heating efficiency of the electric heating mesh plate 71 on the bottom of the photovoltaic cell;

[0054] Under the guidance of the diverter plate 61, part of the wind blows toward the electric heating mesh plate 71, thereby dissipating the heat of the electric heating mesh plate 71 to the photovoltaic cell in the limiting groove 17, thereby heating the bottom of the photovoltaic cell. Under the guidance of the inner end surface of the arc-shaped shell plate 13, another part of the wind is discharged from the guide port 4. At the same time, the inner end surface of the arc-shaped shell plate 13 can guide part of the wind, thereby increasing the uniformity of heating at the bottom of the photovoltaic cell.

[0055] like Figure 8 and Fig. 9 As shown, a photovoltaic cell testing device provided by the present invention, the wind guide mechanism 8 includes a wind guide slot 81, a wind guide plate 82 and a power assembly 83;

[0056] The end surface of the support frame 15 is fixedly connected with an air guide groove 81, and the end surface of the support frame 15 is rotatably connected with an air guide plate 82, an elastic torsion spring is connected between the air guide plate 82 and the rotating seat on the support frame 15, and the support frame 15 is fixedly connected with a power component 83, and the power component 83 can drive the air guide plate 82 to swing continuously.

[0057] In this embodiment, the wind guide groove 81 guides and concentrates the wind force, and then under the joint guiding action of the wind guide plate 82 and the outer wall of the wind guide groove 81, the hot air blows toward the front of the photovoltaic cell. The power component 83 can push the wind guide plate 82 to swing continuously, thereby uniformly heating the entire photovoltaic cell.

[0058] like Fig. 9 As shown, a photovoltaic cell testing device provided by the present invention, the outer wall of the air guide groove 81 is rotatably connected to a plurality of filter plates 9 in sequence, the rotational connection between the filter plate 9 and the outer wall of the air guide groove 81 is connected to an elastic torsion spring, and a plurality of protrusions are fixedly connected to the air guide plate 82, and each protrusion abuts against a filter plate 9.

[0059] In this embodiment, the dust impurities in the inner cavity 2 are filtered through the filter plate 9 to prevent excessive dust impurities in the air from affecting the photovoltaic cell test results. When the air guide plate 82 swings, the air guide plate 82 pushes the filter plate 9 to vibrate through the protrusion to prevent the filter plate 9 from being blocked.

[0060] like Figure 8 As shown, a photovoltaic cell testing device provided by the present invention, the power assembly 83 includes a No. 2 motor 831 and a No. 2 cam 832, the No. 2 motor 831 is fixedly connected to the support frame 15, the No. 2 cam 832 is fixedly connected to the output shaft of the No. 2 motor 831, and the No. 2 cam 832 is elastically abutted against the wind guide plate 82.

[0061] In this embodiment, the second motor 831 is started, the second motor 831 drives the second cam 832 to rotate, and the second cam 832 pushes the wind guide plate 82 to swing. Under the joint guiding action of the wind guide plate 82 and the outer wall of the wind guide groove 81, hot air blows to heat the front of the photovoltaic cell.

[0062] like Figure 3 As shown, a photovoltaic cell testing device provided by the present invention, the driving assembly 5 includes a guide rail 51, a rack rod 52 and a first electric rod 53;

[0063] The telescopic ends of the electric lifting seat 3 are commonly connected with a guide rail 51 , and a rack rod 52 is slidably connected to the guide rail 51 . The rack rod 52 is meshed with all the gear shafts 10 , and a first electric rod 53 is fixedly connected between the guide rail 51 and the rack rod 52 .

[0064] In this embodiment, the No. 1 electric rod 53 is started to extend and retract, and the No. 1 electric rod 53 drives the rack rod 52 to move horizontally on the guide rail 51. The rack rod 52 drives all the gear shafts 10 to rotate by engaging with all the gear shafts 10, thereby driving all the support plates 11 to rotate at the same time, thereby adjusting the illumination angle of all photovoltaic cells.

[0065] A photovoltaic cell testing device, wherein the control system comprises:

[0066] A monitoring module, which includes two temperature sensors and two wind speed sensors, wherein two end surfaces of the support plate 11 are each provided with a temperature sensor and a wind speed sensor;

[0067] A storage module, which is used to store the temperature values ​​of all temperature sensors and the wind speed values ​​of the wind speed sensors;

[0068] A processing module, which is used to compare the temperature difference between the two temperature sensors or the wind speed difference between the two wind speed sensors with a preset wind speed difference threshold value and form judgment information; the processing module is preferably a computer processor;

[0069] A control module, which is used to regulate the diversion mechanism 6, the electric heating component 7 and the air guide mechanism 8, and the control module is preferably a PLC controller;

[0070] The storage module, processing module and control module are all arranged in a control box outside the box 1 .

[0071] In this embodiment, when the temperature difference between the two temperature sensors exceeds the temperature difference between the two temperature sensors, the control module changes the telescopic length of the second electric rod 72, thereby changing the heating efficiency of the electric heating grid plate 71 on the bottom of the photovoltaic cell, and adjusting the heating uniformity between the two end faces of the photovoltaic cell; changing the rotation speed of the first motor 63 and the second motor 831 can change the swing range of the diverter plate 61 and the air guide plate 82, and adjust the heating uniformity of a single end face of the photovoltaic cell;

[0072] When the wind speed difference between the two wind speed sensors exceeds the wind speed difference threshold of the two wind speed sensors, the control module controls the change of the rotation speed of motor No. 1 63 and motor No. 2 831, which can change the swing range of the diverter plate 61 and the wind guide plate 82, thereby improving the overall wind uniformity of the photovoltaic cells.

[0073] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

[0074] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A photovoltaic cell testing device, comprising a box (1), wherein the box (1) is provided with a plurality of inner cavities (2) at intervals, characterized in that: The inner end surface of the inner cavity (2) is fixedly connected to an electric lifting seat (3), the telescopic ends of the electric lifting seat (3) are rotatably connected to gear shafts (10), all the gear shafts (10) are commonly connected to a driving assembly (5), and the driving assembly (5) can drive all the gear shafts (10) to rotate simultaneously; The gear shafts (10) are all fixedly connected to a support plate (11), a limiting groove (17) for placing a photovoltaic cell is provided in the support plate (11), the bottom of the limiting groove (17) is mesh-shaped, the support plate (11) is fixedly connected to an arc-shaped shell plate (13), a guide port (4) is provided between the arc-shaped shell plate (13) and the support plate (11), a plurality of air inlets (14) are provided at one end of the arc-shaped shell plate (13) away from the guide port (4), the support plate (11) is fixedly connected to an induced draft fan (16), the induced draft fan (16) is directly opposite to the air inlet (14), the side wall of the inner cavity (2) is fixedly connected to a solar simulator (12), and the solar simulator (12) is located above the limiting groove (17); A diversion mechanism (6) for guiding wind force is provided on one side of the air inlet (14); an electric heating component (7) capable of generating heat is provided in the arc-shaped shell plate (13); the support plate (11) is fixedly connected to a support frame (15); the support frame (15) is connected to an air guiding mechanism (8); and the air guiding mechanism (8) is used to guide and disperse hot air; A control system can control the heating uniformity and wind uniformity of a photovoltaic cell by controlling a diversion mechanism (6), an electric heating component (7) and a wind guide mechanism (8).

2. A photovoltaic cell testing device according to claim 1, characterized in that: The flow dividing mechanism (6) comprises a flow dividing plate (61), a first spring (62), a first motor (63), and a first cam (64); A diverter plate (61) is provided on one side of the air inlet (14), all the diverter plates (61) are rotatably connected to the inner wall of the arc-shaped shell plate (13), a No. 1 spring (62) is provided between two adjacent diverter plates (61), the support plate (11) is fixedly connected to a No. 1 motor (63), the output shaft of the No. 1 motor (63) is fixedly connected to a No. 1 cam (64), and the No. 1 cam (64) is elastically abutted against the diverter plate (61) on one side.

3. A photovoltaic cell testing device according to claim 1, characterized in that: The electric heating assembly (7) comprises an electric heating mesh plate (71) and a second electric rod (72); the electric heating mesh plate (71) is rotatably connected to the end surface of the support plate (11); and the second electric rod (72) is rotatably connected between the electric heating mesh plate (71) and the support plate (11).

4. A photovoltaic cell testing device according to claim 1, characterized in that: The air guide mechanism (8) comprises an air guide groove (81), an air guide plate (82) and a power assembly (83); The end surface of the support frame (15) is fixedly connected to an air guide groove (81), and the end surface of the support frame (15) is rotatably connected to an air guide plate (82), an elastic torsion spring is connected between the air guide plate (82) and a rotating seat on the support frame (15), and the support frame (15) is fixedly connected to a power component (83), and the power component (83) can drive the air guide plate (82) to swing continuously.

5. A photovoltaic cell testing device according to claim 4, characterized in that: The outer wall of the air guide groove (81) is rotatably connected to a plurality of filter plates (9) in sequence, and the rotational connection between the filter plate (9) and the outer wall of the air guide groove (81) is connected to an elastic torsion spring, and the air guide plate (82) is fixedly connected to a plurality of protrusions, each of which abuts against a filter plate (9).

6. A photovoltaic cell testing device according to claim 4, characterized in that: The power assembly (83) comprises a No. 2 motor (831) and a No. 2 cam (832); the No. 2 motor (831) is fixedly connected to the support frame (15); the No. 2 cam (832) is fixedly connected to the output shaft of the No. 2 motor (831); and the No. 2 cam (832) is elastically abutted against the air guide plate (82).

7. A photovoltaic cell testing device according to claim 1, characterized in that: The driving assembly (5) comprises a guide rail (51), a rack rod (52) and a first electric rod (53); The telescopic ends of the electric lifting seat (3) are commonly connected to a guide rail (51), a rack rod (52) is slidably connected to the guide rail (51), the rack rod (52) is meshed with all the gear shafts (10), and a first electric rod (53) is fixedly connected between the guide rail (51) and the rack rod (52).

8. A photovoltaic cell testing device according to claim 1, characterized in that: A control system comprising: A monitoring module, comprising two temperature sensors and two wind speed sensors, wherein two end surfaces of the support plate (11) are each provided with a temperature sensor and a wind speed sensor; A storage module, which is used to store the temperature values ​​of all temperature sensors and the wind speed values ​​of the wind speed sensors; A processing module, which is used to compare the temperature difference between the two temperature sensors or the wind speed difference between the two wind speed sensors with a preset wind speed difference threshold value and form judgment information; A control module is used to regulate the diversion mechanism (6), the electric heating component (7) and the air guide mechanism (8).

Images