Title:
電動工具
Document Type and Number:
Japanese Patent JP7367735
Kind Code:
B2
Abstract:
There is provided a power tool including a housing, a brushless motor, a power supply circuit, and a fan. The housing is formed with an inlet hole and an exhaust hole. The brushless motor is supported by the housing. The power supply circuit includes at least one circuit element for supplying electric power of a power source to the brushless motor. The fan is driven by rotation of the brushless motor to generate a cooling air flow that flows from the inlet hole to the exhaust hole in the housing. The housing includes a first housing including a grip portion and supporting the brushless motor. The inlet hole is formed in the first housing. The at least one circuit element is disposed inside the first housing and is cooled by the cooling air flow.
Inventors:
Naoki Tadokoro
Ken Inui
Ken Inui
Application Number:
JP2021113176A
Publication Date:
October 24, 2023
Filing Date:
July 07, 2021
Export Citation:
Assignee:
Koki Holdings Co., Ltd.
International Classes:
B25F5/00; B23D49/14; B25F5/02; B27B19/09
Domestic Patent References:
| JP2016193478A | ||||
| JP2015100887A | ||||
| JP2017148936A |
Attorney, Agent or Firm:
Kitazawa & Koizumi Patent Attorneys Office