公开(公告)号：US20230075030A1

公开(公告)日：2023-03-09

申请号：US17897624

申请日：2022-08-29

Applicant: MAKITA CORPORATION

Inventor： Yuki KAWAI ,  Naoya ASAMI

IPC: H02P29/10 ,  H02P7/22 ,  H02P7/29 ,  H02P29/40 ,  F04D25/06

Abstract: A blower in one aspect of the present disclosure includes: a housing including a first discharge port; a motor in the housing; a fan in the housing; an attachment fitting portion; and a motor drive circuit. The attachment fitting portion is configured to detachably attach, to the first discharge port, an attachment including a second discharge port. The motor drive circuit (i) delivers a designated power to the motor and (ii) performs a constant power control that maintains a magnitude of an electric power delivered to the motor at a magnitude of the designated power.

公开(公告)号：US20230071190A1

公开(公告)日：2023-03-09

申请号：US17899363

申请日：2022-08-30

Applicant: MAKITA CORPORATION

Inventor： Yuki KAWAI ,  Naoya ASAMI

IPC: F04D25/06 ,  H02K7/14 ,  H02P3/06 ,  H02P23/14

Abstract: A blower in one aspect of the present disclosure includes: a housing including a suction port and a discharge port; a motor in the housing; a fan in the housing; a motor drive circuit; and a control circuit. The control circuit detects an insufficient airflow from the suction port to the discharge port based on an operation parameter. The operation parameter is associated with an operation of the motor.