发明名称 POWER TOOL
摘要 According to an aspect of the present invention, there is provided a power tool including: a brushless motor; switching elements that drive the brushless motor; a circuit board on which the switching elements are mounted; a transmission portion that transmits a driving force of the brushless motor; and a housing that houses the brushless motor, the switching elements, the circuit board and the transmission portion therein, wherein the switching elements include semiconductor elements each having terminals on a bottom surface thereof, and wherein the switching elements are surface mounted on the circuit board.
申请公布号 EP2342805(A1) 申请公布日期 2011.07.13
申请号 EP20090787964 申请日期 2009.05.20
申请人 HITACHI KOKI CO., LTD. 发明人 OOMORI, KATSUHIRO;TOUKAIRIN, JUNICHI;TAKANO, NOBUHIRO;IWATA, KAZUTAKA;NISHIKAWA, TOMOMASA
分类号 H02K29/00;B25F5/00;H01L23/13;H02K11/00 主分类号 H02K29/00
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