Siemens Aktiengesellschaft

André Grübel

Dieter Schirm

Peter Gröppel

Matthias Übler

Bernhard Klaussner

Rolf Mülhaupt

Volker Altstädt

Klaus Schäfer

Michael Nedelcu

Uwe Beier

Meik Wissert

Daniel Hößelbarth

The invention relates to a method for producing a rotor and/or a stator of a dynamoelectric rotary machine by means of the following steps: &#x2014;producing pre-formed coils from an integral electrically conductive material or pre-insulated or coated electrically conductive wires, &#x2014;fixing spacers to the pre-formed coil at predefinable intervals, &#x2014;inserting the pre-formed coil, which is provided with spacers, into slots in a laminated core of a stator or rotor, &#x2014;making contact with the individual pre-formed coils to form groups of coils and forming a winding system of a rotor and/or stator in accordance with a predefined circuit plan, &#x2014;insulating the pre-formed coils or the winding system in the slots by complete encapsulation, in particular by complete vacuum encapsulation.

Method for producing a dynamoelectric rotary machine, and dynamoelectric rotary machine

A slot-closing device for closing a slot in a stator or a rotor of an electric machine includes a closure element for closing the slot. A closure element for closing the slot contains a ferromagnetic material, and has a predetermined bending section along a longitudinal extension direction of the closure element, such that two leg portions disposed at an obtuse angle of less than 180&#xb0; to one another are connected by the bending section. An adhesive layer designed to harden when heated is disposed on edges of the two leg portions.

Expandable slot closure for an electric machine

A slot-closing device for closing a slot in a stator or a rotor of an electric machine includes a closure element which contains a ferromagnetic material. An adhesive layer disposed on the closure element is designed to expand and harden when heated. The adhesive layer contains a thermally activatable blowing agent configured as an expansion element which contains a closed cavity filled with gas. The cavity is partially enclosed by a thermoplastic resin in the expansion element.

Self-adhesive slot-closing device for an electric machine

Growing community of inventors

Fürth, Germany

André Grübel