Power tool and method for producing the same
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United States of America Patent
Stats
-
Jan 10, 2017
Grant Date -
Jul 31, 2014
app pub date -
Aug 10, 2012
filing date -
Aug 19, 2011
priority date (Note) -
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status (Latency Note)
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Abstract
A power tool (1) and a method of producing such power tool capable of improving dust proof performance with respect to a circuit board (33) and a stator coil (31B), and capable of securing cooling performance to the circuit board. The power tool includes a brushless motor (3) having a hollow stator (31), a rotor (32) positioned in an internal space of the stator, and a motor driver circuit connected to the stator. The stator includes a coil (31B) electrically connected to the motor driver circuit. The coil is coated with a coating agent (31D), and the motor driver circuit is covered with an insulation cover member (33D).
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