| 发明名称 | Motor and brushless motor | ||
| 摘要 | A brushless motor is provided that is capable of suppressing water from contacting a magnetism detection sensor. A brushless motor includes a rotor section that includes a rotor magnet; a stator section that generates a rotational magnetic field with respect to the rotor magnet; a magnetism guide member that guides a portion of magnetism from the rotor magnet; a control unit that includes a circuit substrate and a circuit chamber which is sealed and houses the circuit substrate; and a magnetism detection sensor that is mounted on the circuit substrate inside the circuit chamber and that detects magnetism guided by the magnetism guide member. | ||
| 申请公布号 | US9425672(B2) | 申请公布日期 | 2016.08.23 |
| 申请号 | US201313748590 | 申请日期 | 2013.01.24 |
| 申请人 | ASMO CO., LTD. | 发明人 | Sahara Yoshimichi;Ota Takuro;Murase Akio;Suzuki Akihiko |
| 分类号 | H02K11/00;H02K9/22;H02K29/08 | 主分类号 | H02K11/00 |
| 代理机构 | Solaris Intellectual Property Group, PLLC | 代理人 | Solaris Intellectual Property Group, PLLC |
| 主权项 | 1. A brushless motor comprising: a rotor section that includes a rotor magnet; a stator section that generates a rotational magnetic field with respect to the rotor magnet; a magnetism guide member that guides a portion of magnetism from the rotor magnet; a control unit that includes a circuit substrate and a circuit chamber which is sealed and houses the circuit substrate; and a magnetism detection sensor that is mounted on the circuit substrate inside the circuit chamber and that detects magnetism guided by the magnetism guide member, wherein: an opening portion is formed at a wall portion configuring the circuit chamber; the magnetism guide member is inserted into the opening portion; the control unit includes a heat sink; the wall portion configures the heat sink; and in an axial direction of the rotor section, the wall portion is disposed between the rotor magnet and the circuit substrate. | ||
| 地址 | Shizuoka-pref. JP | ||