公开(公告)号：US20240372430A1

公开(公告)日：2024-11-07

申请号：US18582797

申请日：2024-02-21

Applicant: MAKITA CORPORATION

Inventor： Katsuyuki NIINOMI ,  Takaya YAMADA ,  Kengo UMEMURA

IPC: H02K5/20 ,  B24B23/02 ,  B24B47/12 ,  B25F5/00 ,  H02K1/18 ,  H02K5/14 ,  H02K7/08 ,  H02K7/14 ,  H02K9/06 ,  H02K9/28

Abstract: A power tool includes a motor and a housing. The motor includes a rotor rotatable in one direction about a motor rotation axis and including a rotor shaft to which a fan and a commutator are fixed, a stator surrounding the rotor, and a carbon brush in contact with the commutator. The housing supports the stator and includes a cylinder, a bottom connected to the cylinder, a vent in the bottom, and a rib protruding from the bottom. P1