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US 2020/0052535 A1Published application
Motor and pump device
AssigneeNidec Sankyo Corporation
InventorsMasaki HARADA, Hiroki KURATANI
Life of this patent
Estimating the term…
Abstract
A motor may include a rotor comprising a rotating shaft and a bearing component structured to rotatably support. The bearing component may include a sliding surface that the rotor sliding-contacts from a first side in an axial direction. The rotor may include a holding member structured to hold the rotating shaft from an outer circumferential side; a magnet held by the holding member; and a metal component fixed to the rotating shaft and held by the holding member so as to protrude to the outer circumferential side from the rotating shaft.
Claims10
A motor comprising:
- a rotor comprising a rotating shaft;
- and
- a bearing component structured to rotatably support;
- wherein the bearing component comprises a sliding surface that the rotor sliding-contacts from a first side in an axial direction;
- and
- the rotor comprises:
- a holding member structured to hold the rotating shaft from an outer circumferential side;
- a magnet held by the holding member;
- and
- a metal component fixed to the rotating shaft and held by the holding member so as to protrude to the outer circumferential side from the rotating shaft.
7 more elements
A pump device comprising:
- a motor comprising:
- a rotor comprising a rotating shaft;
- and
- a bearing component structured to rotatably support;
- wherein the bearing component comprises a sliding surface that the rotor sliding-contacts from a first side in an axial direction;
- and
- the rotor comprises:
- a holding member structured to hold the rotating shaft from an outer circumferential side;
- a magnet held by the holding member;
- and
- a metal component fixed to the rotating shaft and held by the holding member so as to protrude to the outer circumferential side from the rotating shaft;
- and
- an impeller fixed to the rotating shaft;
- wherein the bearing component orients the sliding surface toward a side opposite to the impeller.
11 more elements
Dependencies are inferred from the claim text.