Electrical tool e.g. electric screwdriver, has rechargeable supercapacitors connected to motor through on-off switch and providing electricity to motor such that motor delivers driving power via transmission system for driving tool

摘要

The tool has a set of rechargeable supercapacitors (6) connected to a motor (3) through an on-off switch (4) by a series assembly or by a parallel assembly for producing electricity. The supercapacitors provide the electricity to the motor such that the motor delivers a driving power via a transmission system (2) for driving the tool. A connector (7) is used for recharging the supercapacitors, which are assembled as a single block.