发明名称 Electric Power Tool
摘要 An electric power tool 1 has a motor 3, a housing 2, a power cord 9, and a power supply control circuit portion 8. The housing 2 has a body portion 21 for accommodating the motor, a substrate accommodating portion 23 for accommodating a substrate on which a control substrate for operating the motor 3 is mounted, a handle portion 22 having one end connected to the body portion 21 and another end connected to the substrate accommodating portion 23. The power cord 9 extends from the substrate accommodating portion 23 and is connected to an AC power supply. The power supply circuit portion 8 has a choke coil 86 and a film capacitor 88 for filtering noise, and converts AC power supplied through the power cord 9 to DC power. The choke coil 86 and a film capacitor 88 are accommodated in the substrate accommodating portion 23. Accordingly, the handle portion can be formed shorter, and assemblability of the electric power tool can be improved.
申请公布号 US2015288259(A1) 申请公布日期 2015.10.08
申请号 US201314438378 申请日期 2013.10.25
申请人 HITACHI KOKI CO., LTD. 发明人 Koizumi Toshiaki
分类号 H02K11/02;B25F5/02;H02K7/14 主分类号 H02K11/02
代理机构 代理人
主权项 1. An electric power tool comprising: a motor; a housing comprising a body portion for accommodating the motor, a substrate accommodating portion for accommodating a substrate on which a control circuit for operating the motor is mounted, and a handle portion having one end connected to the body portion and an other end connected to the substrate accommodating portion; a power cord extending from the substrate accommodating portion and being connectable with an alternating power supply; and a power supply circuit portion comprising a noise filtering element for filtering noise, the power supply circuit portion being configured to convert alternating power supplied through the power cord to direct current power, characterized in that the noise filtering element is accommodated in the substrate accommodating portion.
地址 Minato-ku, Tokyo JP