US 12,249,875 B2
Electric work machine
Junya Inuzuka, Anjo (JP); and Yusuke Ichioka, Anjo (JP)
Assigned to MAKITA CORPORATION, Anjo (JP)
Filed by MAKITA CORPORATION, Anjo (JP)
Filed on May 13, 2022, as Appl. No. 17/743,768.
Claims priority of application No. 2021-108001 (JP), filed on Jun. 29, 2021.
Prior Publication US 2022/0416625 A1, Dec. 29, 2022
Int. Cl. H02K 11/215 (2016.01); A01D 34/68 (2006.01); A01D 34/78 (2006.01); A01D 101/00 (2006.01); H02K 21/22 (2006.01)
CPC H02K 11/215 (2016.01) [A01D 34/6806 (2013.01); A01D 34/78 (2013.01); H02K 21/22 (2013.01); A01D 2101/00 (2013.01); H02K 2211/03 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An electric work machine, comprising:
a stator including
a stator core,
an insulator fixed to the stator core, and
a coil attached to the insulator;
a rotor rotatable about a rotation axis, the rotor including
a rotor core, and
a magnet fixed to the rotor core;
a stator base supporting the stator;
a sensor board supported by the stator base, the sensor board including a magnetic sensor configured to detect the magnet;
an output unit drivable by the rotor; and
a motor positioner configured to position the stator base and the stator relative to each other, wherein
the stator base includes a pipe located inside the stator core,
the pipe has an outer surface including a base flat area,
the stator core has an inner surface including a stator flat area in contact with the base flat area, and
the motor positioner includes the base flat area and the stator flat area.