Motor, blowing device, and vacuum cleaner
AssigneeNidec Corporation
InventorsSakae KISHI, Tomoyoshi SAWADA, Takumi IWAO
Life of this patent
Estimating the term…
Abstract
A motor including a shaft that is disposed along a vertically extending central axis in which the shaft rotates about the central axis, a magnet and a cooling member that are fixed to the shaft, a stator disposed so as to oppose the magnet in a radial direction, the stator including a coil, a motor housing that accommodates therein the shaft, the magnet, the stator, and the cooling member. The cooling member opposes, in the axial direction, the magnet directly or with another member interposed therebetween. A plurality of protruded portions are provided on the cooling member in which the plurality of protruded portions are protruded in the radial direction and are disposed in a circumferential direction.
Claims12
A motor comprising:
- a shaft that is disposed along a vertically extending central axis, the shaft rotating about the central axis;
- a magnet and a cooling member that are fixed to the shaft;
- a stator disposed so as to oppose the magnet in a radial direction, the stator including a coil;
- and
- a motor housing that accommodates therein the shaft, the magnet, the stator, and the cooling member,
- wherein the cooling member opposes, in the axial direction, the magnet directly or with another member interposed therebetween, and
- wherein a plurality of protruded portions are provided on the cooling member, the plurality of protruded portions being protruded in the radial direction and being disposed in a circumferential direction.
Dependencies are inferred from the claim text.