Metabowerke Gmbh

Bernd Wiesner

Matthias Hiller

Jochen Graeber

Reinhard Plietsch

Michael Schmohl

Stefan Bauer

Bernd Fleischmann

Thomas Stenzel

Enrico Floete

Marco Gaertner

Frank Matheis

Patrick Neika

Stefan Schwarz

Jochen Gräber

Tobias Beck

Julian Witkowski

The invention relates to abasic body () for an electric motor (), which comprises the following features: a substantially cylindrical outer wall (), which forms a rotor space () for receiving a rotor () at least partially inside the outer wall () and on which a winding () can be mounted at least partially outside the latter; a laminated core () which is held by the outer wall (); a receiving space () which serves to receive a printed circuit board () or another component of the electric motor () and which adjoins the rotor space (); a partition wall () separating the receiving space () from the rotor space (); at least one orienting device () for positionally orienting the printed circuit board () or the other component of the electric motor () inside the receiving space (); a receptacle () for a cover () which closes the rotor space (), said receptacle being situated on the outer wall () on the side of the rotor space () opposite to the partition wall (); and an inner wall (), which adjoins the partition wall (), for receiving a bearing () for the rotor (), said inner wall, together with the outer wall (), creating the receiving space ().

Basic body for an electric motor

An arrangement for measuring a single cell in a rechargeable battery pack is described, and which includes a plurality of cells coupled in a series circuit, and wherein adjacent cells are electrically coupled to a connecting branch, and a measuring device comprising a switch is provided, and which selectively electrically connects one connecting branch to a measuring input of the measuring device.

Arrangement for measuring a single cell in a rechargeable battery pack and rechargeable battery pack comprising such an arrangement

The invention relates to an electrical power tool, particularly an electric hand power tool, for operating with alternating current, having an electric motor, and electronic control device, and an electrical power switch for actuating the electric motor, wherein the electronic control device comprises a bias voltage output and a detection input, connected to each other by means of a voltage divider comprising a summation point and to the side of the power switch facing the electric motor, and the control device is further designed such that the potential at the detection input is monitored after actuating the power switch and used for checking whether the power switch is conducting, and that it is actuated again if the power switch was not conducting or returned to the non-conducting state during the monitoring, and that said checking and any renewed actuation of the power switch is repeated within a half-wave of the alternating voltage.

Electrical power tool for operating with alternating current

The invention relates to a battery-operated electric hand tool device () comprising control electronics (), a wirelessly and contactlessly responding transceiver (), and a storage unit () in which an authorization code is stored, a locked mode of operation and a released mode of operation being distinguishable. In order to improve theft protection, a wire-bound or wireless interface () is provided from the control electronics () of the electric hand tool device to a battery pack () such that locking data can be transmitted from the control electronics () of the electric hand tool device () to the battery pack (), be stored in a storage device () of the battery pack (), and be read out of the storage device () again.

Electric hand tool device and battery pack therefor

An electrical hand tool device () comprises a control electronics () and a transmitter and receiver () which is responsive in a wireless and contact-free fashion, and with a storage medium () in which an authorization code is stored, wherein an operation locking state and an operation release state can be differentiated, and with an external transmitter and receiver means () which is accommodated in a separate portable device (), wherein communication with the transmitter and receiver means () of the electrical hand tool device can be produced in a defined fashion through actuation of the external transmitter and receiver means () to change the operation state, and communication is provided only to change the operation state and optionally to change the authorization code.

Electrical hand tool device

Growing community of inventors

Owen, Germany

Bernd Wiesner