Dynamo-electrical machine with tooth-wound coils
AssigneeSiemens Aktiengesellschaft
InventorsErich Bott, Rolf Vollmer
Life of this patent
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Abstract
A dynamo-electrical machine includes a stator with teeth which are aligned with respect to a rotor, wherein at least a predeterminable number of teeth are surrounded by a winding system which is arranged in slots. The slots which are formed by the teeth and designed to be open, are each closed by a slot sealing element which has an electrically non-conductive and magnetically non-permeable material in which a tooth head widening element is provided in the area of those tooth sections of the tooth heads which face the air gap.
Claims9
A dynamo-electrical machine, comprising:
- a rotor;
- and
- a stator having plural teeth aligned with respect to the rotor, each said tooth terminating in a tooth head, said teeth defining slots there between which are open, wherein at least a predeterminable number of teeth are surrounded by a winding system which is arranged in the slots, each said slot being closed by a slot sealing element which includes an electrically non-conductive and magnetically non-permeable material and a tooth head widening element which is provided in an area of an air-gap proximal tooth section of the tooth head and is laminated or sintered, or configured in the form of litz wires composed of insulated filaments.
A method for producing a slot seal, comprising the steps of:
- producing a tooth head widening element;
- and
- positioning the tooth head widening element in plastic.
A method for the production of a stator of a dynamo-electrical machine, comprising the steps of:
- interlocking laminates of the stator by stamping and stacking to form a laminated core;
- inserting a winding system in slots of the laminated core;
- inserting a slot sealing element in the form of a tooth head widening element embedded in plastic in each slot.
Dependencies are inferred from the claim text.