Metabowerke Gmbh

Metabo-allee 1

Michael Schmohl

Matthias Hiller

Stefan Bauer

Bernd Wiesner

Bernd Fleischmann

Enrico Floete

Thomas Stenzel

Felix Ebner

Enrico Flöte

Norbert Falter

Dietrich Holzwarth

Pattrick Schnelle

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

The present invention relates to a method for producing a stator which includes the steps of inserting a stator segment into a former; introducing a coil wire winding into a coil space of the stator segment, and out via a slot which is located in the region between two pole horns; cohesively connecting the turns of the coil at least partially, at least in parts of that region of the coil, which is located outside the slot; and removing the former.

Method for producing a stator for an electric motor

A rotor () for a forced-air-cooled electric motor, in particular a universal motor, especially for use with electrical power tools, has a laminated armature () incorporating longitudinal slots () and with wire windings of a coil () protruding from the longitudinal slots () on the front face where the windings form coil connecting heads (). Some or all of the longitudinal slots () in the laminated armature () contain a rod () aligned in the longitudinal direction and protruding axially from one or both front faces () of the laminated armature (), whereby the protruding rod ends thus surround the coil connecting heads () on the respective front face to protect the coil connecting heads from abrasive wear.

Rotor for a forced-air-cooled electric motor

The invention relates to an electric driven tool device, especially an electric hand-held tool device, comprising an asynchronous electric motor () or a brush-less synchronous electric motor and a computer-controlled motor control device (). The invention is characterized by a frequency converter () which can be controlled by the motor control device, whereby a motor (drive) voltage can be applied to the motor (), and with a current detector () which co-operates with the motor control device () and detects the motor current. The motor control device () is embodied in such a manner that, in a first phase of the motor operation, the frequency of the motor current is maintained in a constant manner up to a limiting current Iand, in a second phase of the motor operation, at loads above the load at which the motor current reaches the limiting current I, the frequency of the motor current is lowered in such a manner that the motor current is maintained at a constant value.

Electric driven tool device

Growing community of inventors

Ammerbuch, Germany

Michael Schmohl