1. Process flow: 1. Battery inspection-2. Front welding-inspection-3. Reverse series connection-check-4. Laying (glass cleaning, material cutting, glass pre-treatment, laying)-5. Lamination-6. Deburring (trimming, cleaning)-7. Frame installation (gluing, angle key installation, drilling, frame b, process introduction: 1. Battery testing: Due to the randomness of the manufacturing conditions of the battery sheets, the performance of the batteries produced varies. In order to effectively compare the performance of the batteries with the same or similar performance When the batteries are combined, they should be classified according to their performance parameters; the batteries should be classified by testing their output parameters (current and voltage) to improve the battery utilization and produce qualified battery components. 2. Frontal welding: it is the confluence. The bus bar is welded to the main grid wire on the front side of the battery (negative pole). The welding machine we use can spot-weld the welding rod to the main grid wire (using an infrared lamp). Thermal effect of infrared rays). The length of the welding strip is about twice the length of the battery side. During the back welding, the additional welding strip is connected to the back electrode of the back battery (our company uses manual welding) 3. Back connection welding. 36 cells are connected in series to form an assembly string. Our current process is manual. The positioning of the cells mainly relies on a film plate with 36 grooves to place the cells. The position of the groove is designed. Different templates are used for components of different specifications. The operator uses a soldering iron and a welding wire to solder the front electrode (negative electrode) of the "front battery" to 4. Fitting and laying: The back is connected in series, and after passing the inspection. , lay the component strings, glass, cut EVA, fiberglass, and backplane in a certain layer, and prepare for lamination. The glass is pre-coated with a layer of primer to increase the bonding strength between the glass and EVA. When laying, ensure that the battery strings and glass, etc. The relative position of the materials, adjust the distance between the cells, and lay the foundation for lamination (laying level: bottom to top: glass, EVA, battery, EVA, fiberglass, backplane) 5. Component lamination: Put the placed battery into the laminator, vacuum out the air in the component, then heat and melt the EVA to bond the battery, glass and backsheet together; finally, cool and remove the component. The lamination process is component production. The key steps, lamination temperature and time are determined by the properties of EVA. When we use fast-curing EVA, the lamination cycle time is about 150°C. 6. Trimming: EVA shrinks due to pressure during lamination. The outside is melted and solidified, and it needs to be cut off after lamination. 7. Frame installation: similar to installing a frame on glass; installing an aluminum frame on the glass component increases the strength of the component, further seals the battery component, and extends the service life of the battery and the frame. The gaps between the components are filled with silicone. The frame is connected by angle keys. 8. Welding junction box: A box is welded at the lead on the back of the component to facilitate the connection of the battery to other devices or batteries. 9. High voltage test: high voltage. The test refers to applying a certain voltage between the frame of the component and the electrode lead to test the withstand voltage and insulation strength of the component to ensure that the component will not be damaged under harsh natural conditions (lightning strikes, etc.). 10. Component testing: The purpose of the test is to calibrate the output power of the battery, test its output characteristics, and determine the quality level of the component.