Nidec Corporation

Nidec Tosok Corporation

Yosuke Ito

Yoshihisa Okuhata

Kunihiro Kajita

Mika Konagaya

Toshiaki Nakamura

An aspect of the disclosure provides a rotation angle detecting device capable of detecting a rotation angle of a rotation body rotatable about a central axis. The rotation angle detecting device includes: a sensor magnet, having multiple magnetic poles provided side-by side in a circumferential direction about the central axis and installed to the rotation body; a magnetic sensor, overlapped with the sensor magnet when viewed in a predetermined first direction and capable of detecting a magnetic field of the sensor magnet; and a pair of magnetic parts, provided to sandwich the magnetic sensor in a second direction intersecting the first direction.

Rotation angle detecting device and electric actuator

In one aspect of a motor of the present invention, an inverter housing portion is located on the radially outer side of a stator housing portion. A housing has a tubular circumferential wall surrounding the rotor and the stator on the radially outer side of the rotor and the stator, and is a single member. The circumferential wall has a first cooling flow path, and a partition wall that partitions the stator housing portion and the inverter housing portion. The first cooling flow path extends in the circumferential direction, and at least a part of the first cooling flow path is provided in the partition wall. As viewed along the predetermined direction, a portion of the first cooling flow path provided in the partition wall has a portion overlapping the inverter and a portion overlapping the capacitor.

Motor

A motor including a rotor, a stator, an inverter, a housing, and a cover member. The housing is a single member that includes: a stator housing portion; an inverter housing portion housing the inverter; and a partition wall located between the stator housing portion and the inverter housing portion. The housing opening through which at least a part of the stator, an end on one side in an axial direction of the partition wall, and at least a part of the inverter housing portion are exposed is provided at an end on the one side in the axial direction of the housing. A three-phase coil wire extending from the stator passes through the end of the partition wall to the inverter, extends up to the inverter, and is connected to a connector terminal provided at an end on the one side in the axial direction of the inverter.

Growing community of inventors

Kanagawa, Japan

Yosuke Ito