Patent ID: 11953021
Assignee: NIDEC CORPORATION
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 0:
1. An air blower, comprising:
an impeller rotatable about a central axis extending vertically;
a motor to rotate the impeller; and
a holder to hold the motor; wherein
the air blower is a centrifugal air blower which generates a radial airflow perpendicular to the central axis;
the holder includes:
a base on which the motor is provided;
a plurality of attachments on a radial directional-outer side of the impeller;
a plurality of arms connecting the base and each of the attachments; and
a wall surface located at a side where the impeller is provided, between the base and each attachment, and opposing a radial-directional inner side;

an axial lower end of the impeller is located below an axial upper end of the wall surface; and
an axial upper end of the impeller is located axially above axially upper ends of the plurality of attachments.