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US 2010/0244592 A1Published application
Power tool
AssigneeHitachi Koki Co., Ltd.
InventorsKatsuhiro Oomori, Yoshihiro Komuro, Kenichirou Yoshida, Kazutaka Iwata
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Abstract
According to an aspect of the present invention, there is provided a power tool including: a housing having a suction port formed thereon to introduce an cooling air from an outside of the housing; and a brushless motor that is housed in the housing and has an electric circuit, the electric circuit having a heat radiating surface, wherein the heat radiating surface is disposed in a neighborhood of the suction port.
Claims6
A power tool comprising:
- a housing having a suction port formed thereon to introduce an cooling air from an outside of the housing;
- and
- a brushless motor that is housed in the housing and has an electric circuit, the electric circuit comprising a switching element, the switching element having a heat radiating surface at one side thereof,
- wherein the heat radiating surface is disposed in a neighborhood of the suction port.
1 more element
Dependencies are inferred from the claim text.