US 12,237,738 B2
Electric work machine and production method for electric work machine
Kei Kouda, Anjo (JP)
Assigned to MAKITA CORPORATION, Anjo (JP)
Appl. No. 17/924,430
Filed by MAKITA CORPORATION, Anjo (JP)
PCT Filed Apr. 16, 2021, PCT No. PCT/JP2021/015696
§ 371(c)(1), (2) Date Nov. 10, 2022,
PCT Pub. No. WO2021/250999, PCT Pub. Date Dec. 16, 2021.
Claims priority of application No. 2020-101233 (JP), filed on Jun. 10, 2020.
Prior Publication US 2023/0231457 A1, Jul. 20, 2023
Int. Cl. H02K 21/16 (2006.01); H02K 1/14 (2006.01); H02K 1/276 (2022.01); H02K 7/14 (2006.01); H02K 9/06 (2006.01); H02K 11/215 (2016.01); H02K 11/33 (2016.01); H02K 15/022 (2025.01)
CPC H02K 21/16 (2013.01) [H02K 1/146 (2013.01); H02K 1/276 (2013.01); H02K 7/145 (2013.01); H02K 9/06 (2013.01); H02K 11/215 (2016.01); H02K 11/33 (2016.01); H02K 15/022 (2013.01); H02K 2211/03 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A manufacturing method for an electric work machine, the method comprising:
stacking first steel plates on one another to produce a first stator core;
winding a first coil around each of a plurality of first teeth on the first stator core in a first connection manner to produce a first stator;
combining the first stator with a first rotor having a first number of poles to produce a first brushless motor;
stacking second steel plates having the same shape as the first steel plates to produce a second stator core;
winding a second coil around each of a plurality of second teeth on the second stator core in a second connection manner to produce a second stator, the second connection manner being the same as the first connection manner;
combining the second stator with a second rotor to be combined with the first stator to produce a second brushless motor, the second rotor having a second number of poles;
manufacturing a first electric work machine including the first brushless motor; and
manufacturing a second electric work machine including the second brushless motor.