Solar cell detection equipment
By designing a solar cell detection device that includes feeding, cutting, electroluminescence detection and other devices, the problem that traditional equipment cannot detect the attenuation of solar cell cells after cutting is solved, and efficient detection and sorting of solar cell cells after cutting is achieved.
Patent Information
- Application Number
- CN202420617377.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-27
- Publication Date
- 2025-05-06
- Estimated Expiration
- 2034-03-27
AI Technical Summary
Traditional solar cell EL detection equipment cannot integrate and directly detect the battery attenuation of the cut solar cell.
A solar cell detection device is designed, including a feeding device, a cutting device and an electroluminescence detection device, which can conduct electroluminescence detection of the cut solar cell in an integrated manner. The device also includes a heating device, a cooling device, a photoluminescence detection device and a sorting device for detecting and sorting solar cell cells.
The integrated detection of the cell attenuation of the cut solar cell is achieved, which can effectively evaluate the electroluminescence and photoluminescence performance of the solar cell and improve detection efficiency and accuracy.
Smart Images
Figure CN222838793U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of photovoltaic technology, and in particular to a solar cell detection device. Background Art
[0002] The electroluminescence (EL) test method of solar cells can be described as follows: when the PN junction of the solar cell is energized, electrons and holes recombine to release energy in the form of emitted photons. The electroluminescence spectrum has a certain light intensity within a certain range, and the damaged part of the solar cell has no electron and hole recombination phenomenon, so there is no photon energy release. By capturing the EL test image, it can be seen that the defective part of the solar cell will show obvious dark spots.
[0003] In traditional solar cell EL testing equipment, EL testing is directly performed on the finished solar cells. However, after the solar cells are welded and cut, the solar cells may decay. Traditional solar cell EL testing equipment cannot directly test the cell decay of the cut solar cells in an integrated manner. Utility Model Content
[0004] Based on this, it is necessary to provide a solar cell detection device that can perform integrated detection of cell attenuation of cut solar cell sheets.
[0005] The present application provides a solar cell testing device, including a feeding device, a cutting device and an electroluminescent testing device;
[0006] The feeding device is used to feed the cutting device;
[0007] The feeding end of the cutting device is connected to the feeding device, and the cutting device is used to cut the solar cell sheet;
[0008] The loading end of the electroluminescent detection device is connected to the unloading end of the cutting device, and the electroluminescent detection device is used to perform electroluminescent detection on the solar cell sheets cut by the cutting device.
[0009] In some embodiments, the electroluminescent detection device includes a first calibration component, and the first calibration component is used to detect and adjust the position of the solar cell in the electroluminescent detection device.
[0010] In some embodiments, the solar cell detection equipment further comprises a photoluminescence detection device, a loading end of the photoluminescence detection device is connected to a unloading end of the cutting device, and the photoluminescence detection device is used to perform photoluminescence detection on the solar cell slices cut by the cutting device.
[0011] In some embodiments, the photoluminescence detection device includes a second calibration component, and the second calibration component is used to detect and adjust the position of the solar cell sheet in the photoluminescence detection device.
[0012] In some embodiments, the solar cell detection equipment also includes a sorting device, a loading end of the sorting device is connected to a unloading end of the electroluminescent detection device and / or a unloading end of the photoluminescent detection device, and the sorting device is used to sort the solar cell panels according to the electroluminescent detection results and / or photoluminescent detection results of the solar cell panels.
[0013] In some embodiments, the sorting device includes a signal receiving component, a material moving component, and a material storing component;
[0014] The electroluminescence detection device comprises a first signal sending component, the first signal sending component is used to send the electroluminescence detection result of the solar cell sheet, and the signal receiving component is used to receive the electroluminescence detection result sent by the first signal sending component;
[0015] The photoluminescence detection device comprises a second signal sending component, the second signal sending component is used to send the photoluminescence detection result of the solar cell sheet, and the signal receiving component is also used to receive the photoluminescence detection result sent by the second signal sending component;
[0016] The material transfer member is used to transfer the solar cell sheets to different material storage members according to the electroluminescence detection result and / or the photoluminescence detection result.
[0017] In some embodiments, the solar cell detection equipment also includes a heating device, the loading end of the heating device is connected to the unloading end of the cutting device, the unloading end of the heating device is connected to the loading end of the electroluminescent detection device, and the heating device is used to heat the solar cell slices cut by the cutting device.
[0018] In some embodiments, the heating device includes a heating cavity having a cavity inside and an infrared heating lamp tube. There are multiple infrared heating lamp tubes, and the multiple infrared heating lamp tubes are arranged at intervals in the cavity. The infrared heating lamp tubes are used to heat the solar cell panels located in the cavity.
[0019] In some embodiments, the solar cell detection equipment also includes a cooling device, the loading end of the cooling device is connected to the unloading end of the heating device, the unloading end of the cooling device is connected to the loading end of the electroluminescent detection device, and the cooling device is used to cool the solar cell panel heated by the heating device.
[0020] In some embodiments, the solar cell testing equipment further comprises a transfer device, wherein the transfer device is used to transfer the solar cell sheet between the loading device, the cutting device and the electroluminescent testing device.
[0021] The solar cell detection equipment can perform integrated detection of cell attenuation of cut solar cell sheets. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 A schematic diagram of the structure of a solar cell detection device provided in one embodiment of the present application;
[0023] Figure 2 A schematic diagram of the structure of a solar cell detection device provided in another embodiment of the present application;
[0024] Figure 3 A schematic structural diagram of a solar cell detection device provided in yet another embodiment of the present application.
[0025] Description of Reference Numerals
[0026] 10. Feeding device; 20. Cutting device; 30. Heating device; 40. Cooling device; 50. Electroluminescent detection device; 60. Photoluminescent detection device; 70. Sorting device. DETAILED DESCRIPTION
[0027] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways not used in the description herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.
[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art to which the present application belongs. The terms used herein in the specification of the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.
[0029] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.
[0030] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, "plurality" means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.
[0031] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.
[0032] Reference Figure 1 The present application provides a solar cell detection device, comprising a feeding device 10, a cutting device 20 and an electroluminescent detection device 50. The feeding device 10 is used to feed the cutting device 20. The feeding end of the cutting device 20 is connected to the feeding device 10, and the cutting device 20 is used to cut the solar cell sheet. The feeding end of the electroluminescent detection device 50 is connected to the unloading end of the cutting device 20, and the electroluminescent detection device 50 is used to perform electroluminescent detection on the solar cell sheet cut by the cutting device 20.
[0033] The above-mentioned solar cell detection equipment can perform integrated detection of cell attenuation of cut solar cell sheets.
[0034] In some embodiments, the electroluminescent detection device 50 includes a first calibration component, which is used to detect and adjust the position of the solar cell in the electroluminescent detection device 50.
[0035] After the EL test of the solar cell, it is necessary to take a photo of the luminous image of the solar cell. The position of the solar cell in the electroluminescent detection device 50 is detected and adjusted by the first calibration component, and the position deviation of the solar cell during the transportation process can be calibrated to obtain a luminous image of the solar cell EL test with better photographic effect.
[0036] In some embodiments, the solar cell detection equipment further includes a photoluminescence detection device 60 , the loading end of the photoluminescence detection device 60 is connected to the unloading end of the cutting device 20 , and the photoluminescence detection device 60 is used to perform photoluminescence detection on the solar cell slices cut by the cutting device 20 .
[0037] Photoluminescence (PL) of solar cells is a luminescence phenomenon of semiconductor materials. It refers to the process in which electrons in semiconductors are excited after absorbing external photons. The electrons in the excited state are unstable and can transition to a lower energy level, releasing energy in the form of light radiation. Some solar cells may have black PL imaging areas. The photoluminescence detection device 60 performs photoluminescence detection on the solar cell slices cut by the cutting device 20, and the PL performance of the cut solar cell slices can be detected.
[0038] In some embodiments, the photoluminescence detection device 60 includes a second calibration component, which is used to detect and adjust the position of the solar cell in the photoluminescence detection device 60 .
[0039] After the PL test of the solar cell, it is necessary to take a photo of the luminous image of the solar cell. The position of the solar cell in the photoluminescence detection device 60 is detected and adjusted by the second calibration component, and the position deviation of the solar cell during the transportation process can be calibrated to obtain a luminous image of the solar cell PL test with better photographic effect.
[0040] In some of the embodiments, the solar cell testing equipment further includes a sorting device 70, a loading end of the sorting device 70 is connected to a unloading end of the electroluminescence testing device 50 and / or a unloading end of the photoluminescence testing device 60, and the sorting device 70 is used to sort the solar cell panels according to the electroluminescence testing results and / or the photoluminescence testing results of the solar cell panels.
[0041] In some embodiments, the sorting device 70 includes a signal receiving component, a material moving component and a material storage component. The electroluminescent detection device 50 includes a first signal sending component, the first signal sending component is used to send the electroluminescent detection result of the solar cell sheet, and the signal receiving component is used to receive the electroluminescent detection result sent by the first signal sending component. The photoluminescent detection device 60 includes a second signal sending component, the second signal sending component is used to send the photoluminescent detection result of the solar cell sheet, and the signal receiving component is also used to receive the photoluminescent detection result sent by the second signal sending component. The material moving component is used to move the solar cell sheet to different material storage components according to the electroluminescent detection result and / or the photoluminescent detection result.
[0042] In some embodiments, the solar cell detection equipment also includes a heating device 30, the loading end of the heating device 30 is connected to the unloading end of the cutting device 20, and the unloading end of the heating device 30 is connected to the loading end of the electroluminescent detection device 50. The heating device 30 is used to heat the solar cell slices cut by the cutting device 20.
[0043] By heating the solar cell sheet through the heating device 30, the defects of boron-oxygen composite light-induced degradation in the cell can be revealed, and then the cell sheet can be tested and sorted.
[0044] In some embodiments, the heating device 30 includes a heating cavity having a cavity inside and an infrared heating lamp tube. There are multiple infrared heating lamp tubes, and the multiple infrared heating lamp tubes are arranged in the cavity at intervals. The infrared heating lamp tubes are used to heat the solar cell panels located in the cavity.
[0045] In some embodiments, the solar cell detection equipment also includes a cooling device 40, the loading end of the cooling device 40 is connected to the unloading end of the heating device 30, and the unloading end of the cooling device 40 is connected to the loading end of the electroluminescent detection device 50, and the cooling device 40 is used to cool the solar cell panel heated by the heating device 30.
[0046] In some of the embodiments, the solar cell testing equipment further includes a transfer device, which is used to transfer the solar cell sheets between the loading device 10 , the cutting device 20 and the electroluminescent testing device 50 .
[0047] In some embodiments, the transfer device includes a conveyor belt.
[0048] Reference Figure 1As shown, in some embodiments, the loading end of the electroluminescent detection device 50 and the loading end of the photoluminescent detection device 60 are both connected to the unloading end of the cooling device 40, the loading end of the sorting device 70 is connected to the unloading end of the electroluminescent detection device 50 and the unloading end of the photoluminescent detection device 60, and the sorting device 70 is used to sort the solar cells according to the electroluminescent detection results or photoluminescent detection results of the solar cells.
[0049] Reference Figure 2 As shown, in some embodiments, the loading end of the electroluminescent detection device 50 is connected to the unloading end of the cooling device 40, the loading end of the photoluminescent detection device 60 is connected to the unloading end of the electroluminescent detection device 50, the loading end of the sorting device 70 is connected to the unloading end of the photoluminescent detection device 60, and the sorting device 70 is used to sort the solar cells according to the electroluminescent detection results and photoluminescent detection results of the solar cells.
[0050] Reference Figure 3 As shown, in some embodiments, the loading end of the photoluminescence detection device 60 is connected to the unloading end of the cooling device 40, the loading end of the electroluminescence detection device 50 is connected to the unloading end of the photoluminescence detection device 60, and the loading end of the sorting device 70 is connected to the unloading end of the electroluminescence detection device 50. The sorting device 70 is used to sort the solar cells according to the electroluminescence detection results and the photoluminescence detection results of the solar cells.
[0051] Refer again Figure 1As shown, in some embodiments, the solar cell detection equipment includes a loading device 10, a cutting device 20, a heating device 30, a cooling device 40, an electroluminescent detection device 50, a photoluminescent detection device 60, a sorting device 70 and a transport device. The transport device is used to transport solar cells between the loading device 10, the cutting device 20, the heating device 30, the cooling device 40, the electroluminescent detection device 50, the photoluminescent detection device 60 and the sorting device 70. The loading device 10 is used to load the cutting device 20. The loading end of the cutting device 20 is connected to the loading device 10, and the cutting device 20 is used to cut the solar cell. The loading end of the heating device 30 is connected to the unloading end of the cutting device 20, and the heating device 30 is used to heat the solar cell cut by the cutting device 20. The loading end of the cooling device 40 is connected to the unloading end of the heating device 30, and the cooling device 40 is used to cool the solar cell heated by the heating device 30. The loading end of the electroluminescent detection device 50 is connected to the unloading end of the cooling device 40, and the electroluminescent detection device 50 is used to perform electroluminescent detection on the solar cell slices cut by the cutting device 20. The loading end of the photoluminescent detection device 60 is connected to the unloading end of the cooling device 40, and the photoluminescent detection device 60 is used to perform photoluminescent detection on the solar cell slices cut by the cutting device 20. The loading end of the sorting device 70 is connected to the unloading end of the electroluminescent detection device 50 and the unloading end of the photoluminescent detection device 60, and the sorting device 70 is used to sort the solar cell slices according to the electroluminescent detection results or the photoluminescent detection results of the solar cell slices.
[0052] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described 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.
[0053] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the attached claims, and the description and drawings may be used to interpret the contents of the claims.
Claims
1. A solar cell testing device, characterized in that: It comprises a feeding device (10), a cutting device (20) and an electroluminescent detection device (50); The feeding device (10) is used to feed materials to the cutting device (20); The feeding end of the cutting device (20) is connected to the feeding device (10), and the cutting device (20) is used to cut solar cell sheets; The loading end of the electroluminescent detection device (50) is connected to the unloading end of the cutting device (20), and the electroluminescent detection device (50) is used to perform electroluminescent detection on the solar cell sheets cut by the cutting device (20).
2. The solar cell testing device according to claim 1, characterized in that: The electroluminescence detection device (50) comprises a first calibration component, which is used to detect and adjust the position of the solar cell sheet in the electroluminescence detection device (50).
3. The solar cell testing device according to claim 1, characterized in that: The solar cell detection equipment further comprises a photoluminescence detection device (60), the loading end of the photoluminescence detection device (60) being connected to the unloading end of the cutting device (20), and the photoluminescence detection device (60) being used to perform photoluminescence detection on the solar cell sheets cut by the cutting device (20).
4. The solar cell testing device according to claim 3, characterized in that: The photoluminescence detection device (60) comprises a second calibration component, and the second calibration component is used to detect and adjust the position of the solar cell sheet in the photoluminescence detection device (60).
5. The solar cell testing device according to claim 3, characterized in that: The solar cell detection equipment further comprises a sorting device (70), the loading end of the sorting device (70) being connected to the unloading end of the electroluminescence detection device (50) and / or the unloading end of the photoluminescence detection device (60), and the sorting device (70) being used to sort the solar cell sheets according to the electroluminescence detection results and / or the photoluminescence detection results of the solar cell sheets.
6. The solar cell testing device according to claim 5, characterized in that: The sorting device (70) comprises a signal receiving component, a material moving component and a material storing component; The electroluminescence detection device (50) comprises a first signal sending component, the first signal sending component is used to send the electroluminescence detection result of the solar cell sheet, and the signal receiving component is used to receive the electroluminescence detection result sent by the first signal sending component; The photoluminescence detection device (60) comprises a second signal sending component, the second signal sending component is used to send the photoluminescence detection result of the solar cell sheet, and the signal receiving component is also used to receive the photoluminescence detection result sent by the second signal sending component; The material transfer member is used to transfer the solar cell sheets to different material storage members according to the electroluminescence detection result and / or the photoluminescence detection result.
7. The solar cell testing device according to claim 1, characterized in that: The solar cell detection equipment further comprises a heating device (30), the loading end of the heating device (30) being connected to the unloading end of the cutting device (20), the unloading end of the heating device (30) being connected to the loading end of the electroluminescent detection device (50), and the heating device (30) being used to heat the solar cell sheet cut by the cutting device (20).
8. The solar cell testing device according to claim 7, characterized in that: The heating device (30) comprises a heating cavity having a cavity therein and an infrared heating lamp tube, wherein the number of the infrared heating lamp tubes is multiple and the multiple infrared heating lamp tubes are arranged at intervals in the cavity, and the infrared heating lamp tubes are used to heat the solar cell panel located in the cavity.
9. The solar cell testing device according to claim 7, characterized in that: The solar cell detection equipment further comprises a cooling device (40), the loading end of the cooling device (40) being connected to the unloading end of the heating device (30), the unloading end of the cooling device (40) being connected to the loading end of the electroluminescent detection device (50), and the cooling device (40) being used to cool the solar cell sheet heated by the heating device (30).
10. The solar cell testing device according to any one of claims 1 to 9, characterized in that: The solar cell detection equipment further comprises a transfer device, which is used to transfer solar cell sheets between the loading device (10), the cutting device (20) and the electroluminescent detection device (50).