基本信息:
- 专利标题： ELECTRIC POWER TOOL
- 专利标题（中）：电动工具
- 申请号：PCT/JP2012/001898 申请日：2012-03-19
- 公开(公告)号：WO2012127851A2 公开(公告)日：2012-09-27
- 发明人： IWATA, Kazutaka , KOIZUMI, Toshiaki
- 申请人： HITACHI KOKI CO., LTD. , IWATA, Kazutaka , KOIZUMI, Toshiaki
- 申请人地址： 15-1, Konan 2-chome, Minato-ku, Tokyo 1086020 JP
- 专利权人： HITACHI KOKI CO., LTD.,IWATA, Kazutaka,KOIZUMI, Toshiaki
- 当前专利权人： HITACHI KOKI CO., LTD.,IWATA, Kazutaka,KOIZUMI, Toshiaki
- 当前专利权人地址： 15-1, Konan 2-chome, Minato-ku, Tokyo 1086020 JP
- 代理机构： KITAZAWA, Kazuhiro et al.
- 优先权： JP2011-060932 20110318; JP2011-060833 20110318; JP2011-060901 20110318
摘要：
An electric power tool includes: a brushless motor having a plurality of stator windings and configured to rotate in accordance with voltages applied to the plurality of stator windings, an induced voltage being generated in accordance with a rotation of the brushless motor; a rectifier circuit configured to rectify an AC voltage; a smoothing capacitor configured to smooth the AC voltage rectified by the rectifier circuit to a pulsation voltage having a maximum value larger than the induced voltage and a minimum value smaller than the induced voltage; and an inverter circuit configured to perform switching operations to output the pulsation voltage to the plurality of stator windings by rotation.
摘要（中）：
一种电动工具包括：无刷电动机，其具有多个定子绕组并且被配置为根据施加到多个定子绕组的电压而旋转，感应电压根据电动机的旋转产生 无刷电机; 整流器电路，被配置为整流AC电压; 平滑电容器，被配置为将由整流电路整流的交流电压平滑为具有比感应电压大的最大值和小于感应电压的最小值的脉动电压; 以及逆变器电路，被配置为执行开关操作以通过旋转向多个定子绕组输出脉动电压。