Electric motor powered screw or nut setting or opening tool, comprises power supply unit which consists of battery, electric double-layered capacitor and charging seat, and has LED lighting and indicator lamp

摘要

The opener comprises a power supply unit which consists of a battery, an electric double-layered capacitor and a charging seat, which are installed in a predetermined position in the housing (10). The battery is connected in parallel to the capacitor. The charging and discharging of the capacitor are purely physical reactions instead of chemical. An electric control unit is temporarily charged by the capacitor. The opener further comprises a lamp (40) with LED having high light emission. It also has an indicator lamp (50) which shows the state of the charging seat.