The general structure of handheld power tools typically comprises core components such as the housing, handle, working head, and power mechanism.
Regarding structural innovation, the patent "Handheld Power Tool with a Rotatable Handle" (CN 119609859 A)-published by Deshuo Technology in March 2025-features a tensioning mechanism at the junction of the housing and the handle. This mechanism incorporates a bracing element and a first elastic element that provides resilient support; positioned between the handle and the housing connection, it maintains the rotational joint under tension to eliminate wobble, thereby enhancing operational safety and user experience.
For instance, the brushless lithium-ion tool control solution launched by Shiteng Technology is designed for handheld tools powered by 12–36V lithium-ion batteries. Its features include low static power consumption, stepless speed regulation for both forward and reverse rotation, and multi-level protection against undervoltage, over-discharge, rotor stalling, short circuits, and overheating.
Additionally, Bosch's cordless electric drills utilize wireless lithium-ion technology and incorporate ECP (Electronic Cell Protection) to monitor current, voltage, temperature, and leakage in real time; they also feature automatic spindle locking and an inertia-braking function.
