Perovskite assembly IV tester based on LED steady-state solar simulator

Abstract

The utility model discloses a perovskite assembly IV tester based on an LED steady-state solar simulator, which comprises a box body, and a light source, a guide rail and a test probe are arranged in the box body. The light source is arranged at the bottom of the box body and comprises a plurality of LED lamp panels, and each LED lamp panel comprises a plurality of LED lamp beads with different wave bands; the light source is further provided with a switching voltage source and a multi-channel adjustable constant current source. The switching voltage source is used for controlling the adjustable constant current source of each channel of the light source to be correspondingly connected with the LED lamp beads of one wave band. The guide rail is located above the light source, is in butt joint with an external guide rail and is used for transmitting a perovskite assembly to be detected; and the test probe is located above the guide rail and is used for being connected with the perovskite assembly to be tested to complete the test.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic components, in particular to a perovskite component IV tester based on an LED steady-state sunlight simulator. Background Art

[0002] With the development of the solar cell industry, the performance requirements for solar modules are getting higher and higher. Therefore, the performance of solar modules must be tested on the production line. The most important ones include IV testing (testing power generation performance) and defect detection (detecting internal defects, whether there are hidden cracks, or process defects that lead to abnormal power generation).

[0003] At present, perovskite solar cells have obvious advantages in terms of efficiency improvement potential, and the industrialization process is expected to be further accelerated. Traditional perovskite IV testers have a low degree of automation and require a lot of manual operation by staff, which is very troublesome. In addition, existing perovskite IV testers are usually only suitable for specific models of products, and their adjustment performance is poor. It is difficult to test other models of products by adjusting parameters. Even if they can be tested, it is difficult to ensure the accuracy of the test. Utility Model Content

[0004] In order to solve the problems raised in the above background technology, the technical solution adopted by the utility model is: a perovskite component IV tester based on an LED steady-state solar simulator, comprising a box, wherein a light source, a guide rail and a test probe are arranged inside the box;

[0005] The light source is arranged at the bottom of the box body, and includes a plurality of LED light boards, each of which includes a plurality of LED lamp beads of different wavelength bands;

[0006] The light source is also equipped with a switching voltage source and a multi-channel adjustable constant current source, and the switching voltage source is used to control the adjustable constant current source of each channel of the light source to be connected to a corresponding LED lamp bead of a band;

[0007] The guide rail is located above the light source and docked with the external guide rail for transmitting the perovskite component to be tested;

[0008] The test probe is located above the guide rail and is used to connect with the perovskite component to be tested to complete the test.

[0009] In some embodiments, an operation screen is further provided outside the box, and the operation screen is equipped with a main control panel.

[0010] In some embodiments, a water-cooled radiator is also disposed at the bottom of the light source.

[0011] In some embodiments, the light source includes 18 LED light panels, and the 18 LED light panels are arranged in 3 rows and 6 columns.

[0012] In some embodiments, the water-cooled radiator includes 18 water-cooling plates, each LED light board is equipped with a water-cooling plate, each water-cooling plate is arranged under the corresponding LED light board, and multiple water-cooling plates are connected to an external water cooling box.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model provides a perovskite component IV tester based on an LED steady-state solar simulator, which has a high degree of automation and reduces the labor intensity of staff. It can also perform precise current control on LEDs of each band through a multi-channel adjustable constant current source, so that the output energy of the LED lamp beads is stable and adjustable, which is beneficial to improving the accuracy and stability during testing, and can use a variety of different models of perovskite component products through adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of a perovskite component IV tester based on an LED steady-state solar simulator provided by the utility model;

[0016] Figure 2 Schematic diagram of the light source and water-cooled radiator.

[0017] Description of Figure Numbers:

[0018] 1. Test box; 2. Light source; 3. Guide rail; 4. Test probe; 5. Operation screen; 6. Water-cooled radiator. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the following further describes how the present invention is implemented in conjunction with the accompanying drawings and specific implementation methods.

[0020] Reference Figure 1 As shown, the utility model provides a perovskite component IV tester based on an LED steady-state solar simulator, including a box 1, wherein a light source 2, a guide rail 3 and a test probe 4 are arranged inside the box 1; the light source 2 is arranged at the bottom of the box 1, and includes a plurality of LED light panels, each of which includes a plurality of LED lamp beads of different bands; the light source 2 is also configured with a switching voltage source and a multi-channel adjustable constant current source, and the switching voltage source is used to control the adjustable constant current source of each channel of the light source 2 to correspond to connecting an LED lamp bead of one band; the guide rail 3 is located above the light source 2 and docked with the external guide rail 3 for transmitting the perovskite component to be tested; the test probe 4 is located above the guide rail 3, and is used to connect with the perovskite component to be tested to complete the test.

[0021] It is understandable that the guide rails 3 inside and outside the test box 1 can be combined with the existing PLC controller to realize the automatic transmission of the perovskite component. The positive and negative electrode spacing and the probe pressure of the test probe 4 can be adjusted according to actual needs.

[0022] Preferably, an operation screen 5 is also provided outside the box 1 , and the operation screen 5 is equipped with a main control board. The main control board is used to receive instructions from the host computer to control the light source 2 and display the relevant parameters and status of the light source 2 on the operation screen 5 .

[0023] Reference Figure 2 As shown, preferably, a water-cooled radiator 6 is also provided at the bottom of the light source 2 .

[0024] In a specific embodiment, the light source 2 includes 18 LED light panels, which are arranged in 3 rows and 6 columns. The whole can be modularly designed, and each LED light panel has an irradiation area of ​​220mm*220mm; the 18 LED light panels are arranged in 3 rows and 6 columns, so that the total irradiation area reaches 600mm*1200mm.

[0025] Correspondingly, the water-cooled radiator 6 includes 18 water-cooling plates, each LED light board is equipped with a water-cooling plate, each water-cooling plate is arranged under the corresponding LED light board, and multiple water-cooling plates are connected to an external water-cooling box. The water-cooling box can be a laser chiller, and the 18 water-cooling plates are connected in series and parallel and connected to the water-cooling box 9 to control the temperature of the LED light board between 25-35°C.

[0026] In a specific embodiment, the perovskite component IV tester based on the LED steady-state solar simulator provided by the utility model meets the IV test of a 0.6*1.2m sized perovskite (laminated) battery component, and has an irradiance of 200W / ㎡-1200W / ㎡ with adjustable light intensity, a test voltage range of -10V to 250V, and a current range of -5A to 15A.

[0027] In addition, each LED light board can be composed of 13 bands of LED splicing, and with the optical lens mixed light design, it is ensured that the spectrum, irradiation unevenness and other indicators within the effective width meet the A-level standard, and the spectrum matching meets the IEC60904-92020 standard. The switching voltage of the light source configuration can be 500W / 48V, combined with 13 channels of adjustable constant current source, each channel of the adjustable constant current source corresponds to a band of LED lamp beads, and precise current control is performed to make the output energy of the LED lamp beads stable and adjustable. By adjusting the output energy of the 13 bands of LED, the irradiance, light uniformity and spectrum matching can be adjusted. It can also be equipped with existing equipment to realize temperature collection and LED drive circuit current monitoring functions, collect and upload the temperature of the light board and power supply in real time, monitor the current of each LED drive circuit, and alarm when the current is abnormal.

[0028] In summary, the perovskite component IV tester based on the LED steady-state solar simulator provided by the utility model has a high degree of automation, which reduces the labor intensity of the staff; and can perform precise current control on the LED of each band respectively through a multi-channel adjustable constant current source, so that the output energy of the LED lamp beads is stable and adjustable, which is beneficial to improve the accuracy and stability during testing, and a variety of different models of perovskite component products can be used through adjustment.

[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A perovskite component IV tester based on LED steady-state solar simulator, characterized in that: It comprises a box (1), wherein a light source (2), a guide rail (3) and a test probe (4) are arranged inside the box (1); The light source (2) is arranged at the bottom of the box (1), and comprises a plurality of LED light panels, each of which comprises a plurality of LED lamp beads of different wavelength bands; The light source (2) is also provided with a switching voltage source and a multi-channel adjustable constant current source, wherein the switching voltage source is used to control the adjustable constant current source of each channel of the light source (2) to be connected to a corresponding LED lamp bead of a wavelength band; The guide rail (3) is located above the light source (2) and docked with the external guide rail (3) for transmitting the perovskite component to be tested; The test probe (4) is located above the guide rail (3) and is used to connect with the perovskite component to be tested to complete the test.

2. The perovskite component IV tester based on LED steady-state solar simulator according to claim 1, characterized in that: An operation screen (5) is also arranged outside the box body (1), and the operation screen (5) is equipped with a main control panel.

3. The perovskite component IV tester based on LED steady-state solar simulator according to claim 1, characterized in that: A water-cooling radiator (6) is also provided at the bottom of the light source (2).

4. The perovskite component IV tester based on LED steady-state solar simulator according to claim 3 is characterized in that: The light source (2) comprises 18 LED light panels, and the 18 LED light panels are arranged in 3 rows and 6 columns.

5. The perovskite component IV tester based on LED steady-state solar simulator according to claim 4, characterized in that: The water-cooled radiator (6) comprises 18 water-cooling plates, each LED light panel is equipped with a water-cooling plate, each water-cooling plate is arranged below the corresponding LED light panel, and the plurality of water-cooling plates are connected to an external water-cooling box.

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