The shared charging treasure cabinet includes: there is a movement inside the cabinet, which we regard as CPU capable of processing data, reading and storing data, issuing commands and other functions; There are also card slot and anti-theft lock. Payment is returned to the card slot. The anti-theft lock prevents the charging bank from being taken out maliciously; Circuit board, which is mainly responsible for current transmission; Some transformers are mainly used to regulate the voltage and protection current under different requirements; The 4G module is mainly used to receive signals. In fact, the internal structure of the cabinet is not complicated. The most important function of the cabinet itself is to identify commands and rent back the hardware carrier of the charging bank.