Switching 3.7V lipo battery manufacturing process detailed explanation by 3.7V lipo battery manufacturers

　　First, prenatal BOM:

　　For new orders, the engineering department must conduct an aging test on the 3.7V lipo battery in accordance with the standards, and then the quality department will conduct the final reliability aging and reliability test. After the quality is confirmed to be OK, the product and PCB board will be photographed and archived, and the reliability test report will be signed. The person in charge of the engineering project can sign the BOM based on the reliability report and photos, and then the head of the engineering department signs it to take effect. The sample will then be analyzed by the manufacturing engineer to determine the rationality of its production and processing, and the sample will be signed on the work instruction before it can be produced. For models with existing ERP BOM that have not been produced within two months, the engineering department must confirm again before production can be carried out. Models produced within two months can be produced directly. The engineering must provide more than two handpiece samples before each production. and PCB assembly.

　　Second, the production department patch plug-in:

　　Before patching the plug-in, there must be the original PCB sample provided by the project. Before patching the plug-in, the sample plug-in must be assembled according to the PCB. At the same time as the plug-in is being placed, QC must carefully check the correctness of the patch and plug-in. During the process After tinning, QC immediately makes 2 PC SPCB hand parts to confirm its electrical performance. If any abnormalities are found, the manufacturing engineering and R&D departments should be contacted as soon as possible. If the PCB hand parts are confirmed to be OK, the PCB assembly to the finished product will be quickly completed and aging testing will be performed.

　　Third, repair welding:

　　The repair welder performs follow-up repair welding on the bare board after the plug-in is completed, and checks the correctness of the plug-in. If there are a large number of tin connections, inverted pins, and false soldering, it should be reported to the plug-in puller in time. The repair welder also performs testing and maintenance on the bare board. , it is necessary to ensure that every PCB board sent to the assembly puller is OK, and the repair welding puller needs to be set to record the wrong parts of the plug-in puller, false welding and other irregular operations.

　　Fourth, assembly

　　The assembly manager is responsible for the subsequent processing of the PCB. After the wires are soldered and covered with a cover, the test is carried out. After the test, it is aged. After the aging is OK, the board is ultrasonicated, screwed, and finally tested again.

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