发明名称 Power tool
摘要 <p>A power tool includes a brushless motor, a cooling fan, and a driving unit in a housing. The brushless motor is provided in the housing and having a rotary shaft. The cooling fan is attached to the rotary shaft in the housing, and rotatable together with the rotary shaft. The driving unit is provided in the housing for driving the motor. The driving unit includes an inverter circuit having a circuit board and a plurality of switching elements mounted on the circuit board. The circuit board is positioned on an opposite side to the motor with respect to the cooling fan. The plurality of switching elements is positioned around the cooling fan in a circumferential direction about the rotary shaft.</p>
申请公布号 EP1715565(B1) 申请公布日期 2010.11.24
申请号 EP20060252143 申请日期 2006.04.20
申请人 HITACHI KOKI CO., LTD. 发明人 IWATA, KAZUTAKA;SAKAMOTO, SHINICHI;YOKOTA, TOMOYOSHI;YOSHIDA, KENICHIROU;NISHIKAWA, TOMOMASA;NAKAGAWA, ATSUSHI
分类号 H02K9/06;H02K7/14 主分类号 H02K9/06
代理机构 代理人
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