Semi-automatic battery string defect detection equipment and detection method

Abstract

The invention relates to semi-automatic battery string defect detection equipment, which comprises a power supply, a detection rack, an EL detector and a PC end, wherein the detection rack is connected with the power supply by means of lead wires, one end of the detection rack is equidistantly provided with a plurality of pressing blocks A, the detection rack is provided with a battery string placing surface, the battery string placing surface is transparent, the EL detector is arranged below the detection rack, a detection head is arranged on the EL detector, the detection head is provided with a filter lens, the tail end of the EL detector is connected with the PC end. The invention further relates to a detection method of the semi-automatic battery string defect detection equipment. The application of the semi-automatic battery string defect detection equipment reduces the tediousness and waste caused by rework of components, improves the productivity and yield, decreases the misjudgment rate caused by image distortion, reduces the labor cost of equipment maintenance, increases the compatible function of a battery string size, and reduces the risk of fragmentation in the testing process. By adopting the single-string EL testing method, the tediousness and waste caused by rework of components are reduced in the production process of laminated components, and the productivity and yield are improved.

Description

Technical field [0001] The invention relates to a detection device and a detection method, in particular to a semi-automatic battery string defect detection device and a detection method. Background technique [0002] Single solar cells cannot be used directly as power sources. As a power source, several single cells must be connected in series, in parallel and tightly sealed into components. Photovoltaic modules are the core part of the solar power system and the most important part of the solar power system. Its function is to convert solar energy into electric energy, and send it to the storage battery for storage, or to drive the load. The production of photovoltaic modules is made up of many cells, so the performance of the cells directly affects the quality and power output of the modules. The cells are produced from silicon materials through a series of complex processes, including some visual defects. Visible defects can be identified by EL detection technology that ar...

AI Technical Summary

Problems solved by technology

[0004] 1. Cause waste of manpower and material resources;

[0005] 2. Increase the risk of other adverse events during the demolition process;

[0006] 3. The reworked battery strings need to be stacked and packaged again, and the secondary EL inspection is performed, which affects the production capacity

At present, EL test equipment is equipped with a mirror that reflects the light emitted by the battery string to be tested to the camera. This structure increases the maintenance cost and the misjudgment rate caused by image distortion.

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