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公开(公告)号:US20110227430A1
公开(公告)日:2011-09-22
申请号:US13121169
申请日:2009-05-20
IPC分类号: H02K7/14
CPC分类号: H02K9/06 , B25F5/00 , H01L2924/0002 , H02K7/145 , H02K11/215 , H02K11/33 , H05K1/181 , H05K3/341 , H05K2201/09027 , H05K2201/10166 , Y02P70/611 , H01L2924/00
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.
摘要翻译: 根据本发明的一个方面,提供了一种电动工具,包括:无刷电动机; 驱动无刷电机的开关元件; 其上安装有开关元件的电路板; 传递无刷电动机的驱动力的变速部; 以及容纳所述无刷电动机,所述开关元件,所述电路基板和所述发送部的壳体,其中所述开关元件包括在其底面上具有端子的半导体元件,并且其中所述开关元件表面安装在所述电路板上 。