Nidec Corporation

Yoshitsugu Sasaguri

Shinji Takemoto

Kosuke Mizuike

Hironori Ando

Seiji Maruoka

Takahiro Hisada

Yuki Tajima

A motor mounted on a drone includes a rotor including a propeller mounting portion with a propeller detachably attached, the rotor being rotatable about a central axis, a stator radially facing the rotor with a gap therebetween, and an auto-balancer capable of automatically correcting dynamic balance of the rotor.

Motor, rotor device, and drone

An inline axial flow fan includes a first fan including a first impeller, a first motor portion, and a first case, and a second fan including a second impeller, a second motor portion, and a second case, the first fan and the second fan being positioned in sequence from one axial side to another axial side. The first case includes multiple first slits, and the second case includes multiple second slits. The inline axial flow fan includes a flange extending radially outward from an outer peripheral surface of the first case or the second case located between the first slit and the second slit in the axial direction.

Inline axial flow fan

An inline axial flow fan includes a first fan including a first impeller, a first motor portion, and a first case, and a second fan including a second impeller, a second motor portion, and a second case, the first fan and the second fan being positioned in sequence from one axial side to another axial side. The first case and the second case are accommodated in a housing, and only one of the first case and the second case includes multiple slits that connect the inside and the outside of the first case and the second case in the radial direction.

A stator includes a stator core having a core back and a plurality of teeth, an insulator, and a coil formed by winding a conductive wire on an outer surface of the insulator to laminate a plurality of winding layers, wherein the insulator includes a cylindrical-shaped part with the conductive wire wound, a flange part provided at two ends of the cylindrical-shaped part and expanding in a lamination direction of the winding layers, and a contact part on the cylindrical-shaped part side of the flange part and contacting each of the winding layers in a winding direction; and the contact part includes a slope part inclined in the lamination direction of the winding layers with respect to a winding direction of the conductive wire and guiding the conductive wire from a winding end part of a certain winding layer to a winding start part of a subsequent winding layer.

Stator, motor and air blowing device

{circle around (1)} A spindle motor includes a fixing portion defined by a bearing portion, a holder portion, a gap between the bearing portion and the holder portion, and an adhesive arranged in the gap. {circle around (2)} The fixing portion includes first and second protruding surfaces arranged to protrude radially from a first and a second one, respectively, of an outside surface of the bearing portion and an inside surface of the holder portion; and first and second boundary surfaces arranged to join the first and second surfaces, respectively, to the first and second protruding surfaces, respectively. {circle around (3)} At least a portion of the first boundary surface is arranged above the second boundary surface. {circle around (4)} The first and second protruding surfaces are arranged radially opposite to the second and first surfaces, respectively, with a first and a second gap, respectively, intervening therebetween. {circle around (5)} The first boundary surface is arranged opposite to the second boundary surface with a third gap intervening therebetween. {circle around (6)} The adhesive is arranged to extend from the third gap to at least a portion of each of the first and second gaps.

Growing community of inventors

Kyoto, Japan

Yoshitsugu Sasaguri