POWER TOOLS WITH MOTOR HAVING A MULTI-PIECE STATOR

A hand-held power tool, comprising: a housing in which an electric motor of a predetermined frame size is disposed, the motor including: a stator having a lamination stack having pole pieces mated to return path pieces and field coils disposed on the pole pieces; an armature disposed in the stator,...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	HOGAN, Kevin M, DU, Hung T, ZHANG, Jiaqi, VERBRUGGE, Brandon L, MAID, Spencer G, ORTT, Earl M, NICOLAIDIS, Antonios M, WANG, Ren Hong, SMITH, Allison A, BENTON, James C, WHEATON, Kyle J, BERNSTEIN, Eric L, ZEMLOCK, Michael A, SAMUELSEN, Eric J, RAKOSKY, Therese M, MANNARINO, Frank A, MCCORMICK, Garrett P, MOLL, Shane Ashley
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	CONVERSION OR DISTRIBUTION OF ELECTRIC POWER DYNAMO-ELECTRIC MACHINES ELECTRICITY GENERATION
Online-Zugang:	Volltext bestellen
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Beschreibung
Zusammenfassung:	A hand-held power tool, comprising: a housing in which an electric motor of a predetermined frame size is disposed, the motor including: a stator having a lamination stack having pole pieces mated to return path pieces and field coils disposed on the pole pieces; an armature disposed in the stator, the armature having an outside diameter that is at least 0.625 of an outside diameter of the stator; a length of the lamination stack of the stator being the same length as a length of a lamination stack of a stator of a needle wound motor of the same frame size; and the motor having a maximum power output that is at least ten percent greater than a maximum power output of the needle wound motor of the same frame size with the same length lamination stack where both motors have the same maximum no load speed.