公开(公告)号：US12206313B2

公开(公告)日：2025-01-21

申请号：US17729337

申请日：2022-04-26

Applicant: MAKITA CORPORATION

Inventor： Fuminari Fujii ,  Yusuke Ichioka

IPC: B27B17/08 ,  H02K1/2706 ,  H02K3/34 ,  H02K5/16 ,  H02K5/22 ,  H02K9/06 ,  H02K21/02 ,  H02K5/08

Abstract: A brushless motor is at least partially located in a hermetically sealed space. An electric work machine includes a brushless motor, an output unit, a motor case, a lead wire, and a first seal. The brushless motor includes a stator, a rotor rotatable with respect to the stator, and a rotor shaft fixed to the rotor. The output unit is drivable by the rotor shaft. The motor case includes an internal space and a wiring passage. The internal space accommodates the stator and the rotor. The lead wire is located in the wiring passage connecting the internal space and an external space of the motor case. The first seal seals between the lead wire and the motor case.

公开(公告)号：US12249875B2

公开(公告)日：2025-03-11

申请号：US17743768

申请日：2022-05-13

Applicant: MAKITA CORPORATION

Inventor： Junya Inuzuka ,  Yusuke Ichioka

IPC: H02K11/215 ,  A01D34/68 ,  A01D34/78 ,  A01D101/00 ,  H02K21/22

Abstract: An electric work machine can appropriately detect rotation of a rotor. The electric work machine includes 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 and 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 and including a magnetic sensor that detects the magnet, and an output unit drivable by the rotor.