| 发明名称 |
ELECTRIC POWER TOOL |
| 摘要 |
In an electric power tool which houses a motor and a controller for controlling drive of the motor, the controller has a circuit board on which electric components are mounted and a heat radiation member which radiates heat of the electric components. The heat radiation member has a facing part which faces the circuit board in parallel to a board surface of the circuit board. The facing part is provided with steps by which a distance between the facing part and the board surface of the circuit board varies. Furthermore, the facing part of the heat radiation member is provided with a first facing part in which a relative distance with respect to the board surface of the circuit board is reduced. |
| 申请公布号 |
US2016020676(A1) |
申请公布日期 |
2016.01.21 |
| 申请号 |
US201514792008 |
申请日期 |
2015.07.06 |
| 申请人 |
MAKITA CORPORATION |
发明人 |
OMURA Motohiro;SUZUKI Ryosuke;TAGA Hideyuki |
| 分类号 |
H02K9/22;H02K11/00;H02K7/14 |
主分类号 |
H02K9/22 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. An electric power tool which houses a motor and a controller for controlling drive of the motor, wherein:
the controller comprises a circuit board on which electric components are mounted and a heat radiation member which radiates heat of the electric components: the heat radiation member includes a facing part which faces the circuit board in parallel to a board surface of the circuit board; the facing part is provided with steps by which a distance between the facing part and the board surface of the circuit board is configured to vary; and the facing part of the heat radiation member is provided with a first facing part in which a relative distance with respect to the board surface of the circuit board is reduced. |
| 地址 |
Anjo-shi JP |
