Is a
Patent attributes
Patent Applicant
Patent Jurisdiction
Patent Number
Patent Inventor Names
Shingo Yamazaki0
Yuta Noguchi0
Akira Matsushita0
Kuniaki Kanbe0
Tomomasa Nishikawa0
Date of Patent
July 6, 2021
0Patent Application Number
155233580
Date Filed
September 29, 2015
0Patent Citations Received
Patent Primary Examiner
Patent abstract
Provided is an electric work machine that can suppress a temperature increase of a component controlling an electric motor. The electric work machine including a brushless motor that operates a tip tool includes a rectification circuit that converts a voltage to be applied to the brushless motor from an alternating current voltage to a direct current voltage, and a switching circuit that controls the brushless motor, and the rectification circuit is arranged upstream of the switching circuit in a circulation path of the air that cools the rectification circuit and the switching circuit.
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