Power tool with substrate having apertures for cooling coils and switching elements

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9680349
APP PUB NO 20140239751A1
SERIAL NO

14186001

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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An electric power tool including: a housing; a brushless motor accommodated in the housing; a fan attached to a rotation shaft of the brushless motor; a switching element configured to control the brushless motor; and a substrate on which the switching element is mounted, wherein a first through-hole is provided to a switching element arranged portion of the substrate.

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First Claim

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Family

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Patent Owner(s)

  • HITACHI KOKI CO., LTD.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ogawa, Itsushi Ibaraki, JP 3 18
Sato, Naoki Ibaraki, JP 158 1252
Tokairin, Junichi Ibaraki, JP 7 122

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