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Title:
PORTABLE DISC SAW
Document Type and Number:
Japanese Patent JP2013173228
Kind Code:
A
Abstract:

To provide a portable disc saw including a brushless motor and capable of sufficiently cooling a switching element controlling the brushless motor.

An electric tool 1 includes: a body storing a brushless motor 24; a saw blade 23 which is a driven member driven by the brushless motor 24; a fan 25 installed coaxially rotatably with a rotor 24A of the brushless motor 24; a substrate 27; and a switching element 27A installed on the substrate. A radiator plate 27B is connected to the switching element 27A.


Inventors:
Imai, Teruo
Application Number:
JP2013000122239
Publication Date:
September 05, 2013
Filing Date:
June 10, 2013
Export Citation:
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Assignee:
HITACHI KOKI CO LTD
International Classes:
B23D47/00; B23D45/16
Domestic Patent References:
JP2007021997A2007-02-01
JP2008173716A2008-07-31
JPS57189789U1982-12-01
JPS5654039Y21981-12-16
Attorney, Agent or Firm:
Kazuhiro Kitazawa
Shin Koizumi
Akiko Ichikawa



 
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