Detection equipment of film solar cell and method thereof

Abstract

The invention relates to detection equipment of a film solar cell and a method thereof, belonging to the field of solar cell technology. The automatic detection equipment of the film solar cell comprises a workbench and an X-Y-Z shaft motion mechanism. A crossbeam of a Y shaft motion mechanism is connected with an X shaft. The detection equipment is characterized in that: the X shaft is provided with a CCD positioner with automatic origin positioning, a marking mechanism, and a Z shaft with a detection mechanism, a four-in-one machine with integration of positioning, X-Y-Z shaft motion, detection and marking is formed, the four-in-one machine is controlled by an industrial control computer program to detect electrical performance of each unit cell in a film solar cell core plate, and a qualified unit cell in detection is marked with a character. The detection equipment with the integration of positioning, X-Y-Z shaft motion, detection and marking can clearly identify and classify a qualified product and an unqualified product before a cutting procedure, possibility of mixing of the qualified product and the unqualified product in classification is eliminated, a production procedure is saved, and production efficiency is raised.

Description

technical field [0001] The invention relates to a detection device and method for a large-format thin-film solar cell, belonging to the technical field of thin-film solar cells. Background technique [0002] Thin-film solar cells are currently widely used in small electronic products, such as calculators, garden lights, toys, etc. The thin-film solar cells used in these products are relatively small in size, while the solar cells processed from deposition equipment are large in size , many small-sized solar unit cells (also called unit cells) can be produced on a large thin-film solar panel at the same time, so it is necessary to cut the directly produced large-sized solar cells to obtain them. In the previous production process In general, the character logo is silk-screened first, then cut and inspected, so that the unqualified products are judged at the end, so that the production process of the unqualified products is exactly the same as that of the qualified products, a...

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Problems solved by technology

[0002] Thin-film solar cells are currently widely used in small electronic products, such as calculators, garden lights, toys, etc. The thin-film solar cells used in these products are relatively small in size, while the solar cells processed from deposition equipment are large in size , many small-sized solar unit cells (also called unit cells) can be produced on a large thin-film solar panel at the same time, so it is necessary to cut the directly produced large-sized solar cells to obtain them. In the previous production process In general, the character logo is silk-screened first, then cut and inspected, so that the unqualified products are judged at the end, so that the production process of the unqualified products is exactly the same as that of the qualified products, and the unqualified products themselves are unqualified. It was formed before the marking and testing process. The disadvantage of this is that no matter whether the product is qualified or not, it must be marked first, resulting in many technological processes, heavy workload, waste of materials, and increased cost. Marking and testing are carried out separately. For the equipment and methods of separate processes, Chinese patent 200710072812.7 "Solar Cell Laser Marking Equipment" fully discloses the large-format laser marking and marking technology, and Chinese Patent 201020238307.2 "Solar Cell Automatic Testing Device 》The automatic detection technology of monolithic solar cells has also been fully disclosed

Although the Chinese patent No. ZL200910025718.5 discloses a semiconductor device testing and sorting machine, the detection, marking, sorting, and taping of semiconductor devices can be realized on the same machine, although it has a compact structure and high detection efficiency. High advantages, but the device is for a single semiconductor device, complex equipment, high cost, not suitable for testing large-format thin-film solar cells including multiple unit cells

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