| 发明名称 |
ROTATION ANGLE DETECTION DEVICE |
| 摘要 |
A rotation angle detection device detects a rotation angle of a motor having a shaft passing through a heat-dissipation plate. The rotation angle detection device includes: a permanent magnet attached to a base end of the shaft; a board that is disposed above the heat-dissipation plate and on which a drive circuit of the motor and a control circuit of the drive circuit are mounted; a magnetic sensor that is provided on the board so as to face the permanent magnet; and a magnetic shielding member that has a tubular shape and is disposed between the heat-dissipation plate and the board to surround the permanent magnet in plan view. |
| 申请公布号 |
US2016352190(A1) |
申请公布日期 |
2016.12.01 |
| 申请号 |
US201615157977 |
申请日期 |
2016.05.18 |
| 申请人 |
JTEKT CORPORATION |
发明人 |
HIEDA Takahito;TANI Naoki |
| 分类号 |
H02K11/215;H02K11/01 |
主分类号 |
H02K11/215 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A rotation angle detection device that detects a rotation angle of a motor having a rotary shaft passing through a metal plate, the rotation angle detection device comprising:
a permanent magnet attached to one end of the rotary shaft; a board that faces the metal plate on the opposite side of the permanent magnet from the metal plate and on which at least one of a drive circuit of the motor and a control circuit of the drive circuit is mounted; a magnetic sensing element that is provided on the board so as to face the permanent magnet; and a magnetic shielding member that has a tubular shape and is disposed between the metal plate and the board so as to surround the permanent magnet in plan view. |
| 地址 |
Osaka JP |
