Rotor coil for armature of rotating machine and production method thereof

A rotor coil (10) for a revolving armature includes a strand coil (13) that includes a part arranged in a core slot (12) of the rotor (1) and is composed of a plurality of element wires (131); and a solid coil (14) welded to an end of the strand coil (13) wherein the end of the strand coil (13) and...

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Bibliographic Details
Main Authors Enyama, Juichi, Umezu, Ryosuke, Kageyama, Yasuaki, Hirano, Satoshi, Park, Seunghwan
Format Patent
LanguageEnglish
French
German
Published 10.10.2018
Subjects
CLADDING OR PLATING BY SOLDERING OR WELDING
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING
DYNAMO-ELECTRIC MACHINES
ELECTRICITY
GENERATION
MACHINE TOOLS
METAL-WORKING NOT OTHERWISE PROVIDED FOR
PERFORMING OPERATIONS
SOLDERING OR UNSOLDERING
TRANSPORTING
WELDING
WORKING BY LASER BEAM
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Summary:A rotor coil (10) for a revolving armature includes a strand coil (13) that includes a part arranged in a core slot (12) of the rotor (1) and is composed of a plurality of element wires (131); and a solid coil (14) welded to an end of the strand coil (13) wherein the end of the strand coil (13) and an end of the solid coil (14) are welded by friction stir welding. A manufacturing method of a rotor coil (10) includes the step of performing friction stir welding wherein the friction stir welding is performed for the butt joint (19) with the end of the strand coil (13) arranged in an advancing side defined by a rotation direction of a tool (20) and with the solid coil (14) arranged in a retreating side.
Bibliography:Application Number: EP20130155132