Robert Boschgmbh

Dirk Altmeyer

Helmut Huber

Achim Neubauer

Pascal Chaumet

Andrew Pierson

Werner Herm

Axel Diederichs

Andreas Friedmann

Edgar Seiler-Wegner

Michael Zimmer

The invention relates to a method and device for producing an electric machine, an electric machine with a commutator, having commutator hooks for fixing electric wire windings with solder arranged between the commutator hooks and the wire winding and two electrodes arranged adjacent to each other which are pressed against the commutator hooks. An electric current is passed through the commutator hooks by means of electrodes such that the solder melts and forms a connection to the wire winding.

Method and device for attaching an electrical wire winding to a commutator

The invention relates to a commutator with contact segments, arranged at a distance from each other and forming a brush running surface. Each contact segment is soldered to a securing portion of a metal segment support piece. The commutator has a hub body made from an electrically insulating material which supports the segment support pieces which are each provided with a winding connector hook. According to the invention, at least one solder barrier recess is provided in the upper side of the securing portion facing the contact segment and/or in the under side of the contact segment facing the securing portion.

Extrusion coated plane commutator

A method for sheathing an armature for electric machines, in which a stack of lamellae that is equipped with grooves for armature windings is mounted on an armature shaft by means of a bore and is provided with at least one groove insulation with the aid of the sheathing process. The sheathing plastic flows through ducts that extend along the bore of the stack and the armature shaft. The plastic is molded in only on a first face of the stack and flows into the grooves and through the ducts. The plastic invades the grooves also from the second face after being discharged from the ducts and converges with the plastic discharged from the first face. The method implements fixing and insulation of the grooves while the groove insulation is provided with a minimum layer thickness for such sheathings at the bottom thereof in order to allow for maximum copper fillings.

Method for sheathing an armature for electrical machines

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Buehl, Germany

Dirk Altmeyer