Brushless motor for a power tool

A brushless direct current motor for a power tool. The motor includes a stator assembly including a stator core having stator laminations with an annular portion and inwardly extending stator teeth. The motor also includes a rotor assembly including a rotor core having rotor laminations and defining...

Full description

Saved in:
Bibliographic Details
Main Authors Boulanger, Keith, Huber, Alex, Elger, William A, Wackwitz, Jeffrey M, Beyerl, Andrew T
Format Patent
LanguageEnglish
Published 25.07.2019
Subjects
COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDEDFOR
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOTPARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOTOTHERWISE PROVIDED FOR
DYNAMO-ELECTRIC MACHINES
ELECTRICITY
GENERATION
HAND TOOLS
MANIPULATORS
PERFORMING OPERATIONS
PORTABLE POWER-DRIVEN TOOLS
TRANSPORTING
Online AccessGet full text

Cover

More Information
Summary:A brushless direct current motor for a power tool. The motor includes a stator assembly including a stator core having stator laminations with an annular portion and inwardly extending stator teeth. The motor also includes a rotor assembly including a rotor core having rotor laminations and defining a central aperture that receives an output shaft. The rotor assembly also includes a rotor end cap on a first side of the rotor core having a bearing holder and defining a channel, wherein the channel is open on a side of the rotor end cap facing the rotor core. The motor further includes a bearing provided in the bearing holder that couples the rotor end cap to the output shaft and a position sensor board assembly provided in the channel of the rotor end cap and configured to provide position information of the rotor core to a motor controller.
Bibliography:Application Number: AU20170240597