Hilti Aktiengesellschaft

Torsten Luettich

Reinhard Riedl

Bernhard Link

Henry Chen

Thomas Pritzen

Sean Wang

Matthias Kuemmerle

Matthias Kümmerle

A suction module which can be connected to a hand-held power tool, and a hand-held power tool including the suction module, is disclosed. The suction module includes a suction head which can receive a tool of the hand-held power tool that is rotatable around a tool axis and a fan with a fan wheel that is rotatable around a fan axis for suctioning air from the suction head. The suction head is connected to the fan by an intake channel, which in a first section runs along a longitudinal axis of the suction module and in a second section along a vertical axis of the suction module that is fixed transverse to the longitudinal axis. The fan axis runs parallel to a narrow axis, which is aligned transverse to the longitudinal axis and transverse to the vertical axis.

Suction module and hand-held power tool with a suction module

A drive unit () for a hand-held power tool includes a stator () located in the drive unit housing (), an end member () provided at each of the opposite ends () of the stator (), a rotor () provided with at least one permanent magnet (), arranged in a receiving space () limited by the stator () and the end members (), and the rotatably supported by a drive axle () on the end members (); and a fan () rotatably connected with the drive axle () for generating a cooling flow (K) from one stator end () to another stator end () between an inner surface () of the drive unit housing () and an outer surface () of the stator () for cooling the stator () and the drive unit, with the stator outer surface () being provided with a plurality of deflection surfaces () extending transverse to the longitudinal extent (L) of the stator ().

Drive unit for hand-held power tool

Growing community of inventors

Kaufering, Germany

Torsten Luettich