Nidec Corporation

Nippon Densan Corporation

Tadahiro Tanaka

Hiroyuki Yonei

Yoichi Mori

Norikazu Oguchi

Osamu Wada

Yoshiyuki Kodaira

A spindle motor has a stationary shaft, a rotor hub rotatably supported by the stationary shaft via a bearing, a loop-like rotor magnet attached to the internal surface of the rotor hub, and a stator disposed to opposedly face the rotor magnet. The stationary shaft has an opening at its base end. A connector is fit into the opening, and a wire lead drawn from a coil of the stator is electrically connected to the connector. The connector is detachably coupled to a mating connector of an external unit. Through these connectors, the power is supplied to the coil from the external unit.

Connector-equipped spindle motor

A spindle motor comprises a housing, a hub arranged for rotation on the housing, a couple of bearings interposed between the housing and the hub, a rotor magnet mounted to the hub, and a stator mounted to the housing so as to face the rotor magnet, in which at least one of the two bearings is of single seal type having a seal at one side. Also, a flexible pc film is provided for supply of electric energy to the stator and arranged for improved connection to an armature coil of the stator.

Spindle motor

Growing community of inventors

Ina, Japan

Tadahiro Tanaka