US 12,068,659 B2
Diffuser for an electric motor
Reza Aini, Amersham (GB)
Assigned to SharkNinja Operating LLC, Needham, MA (US)
Filed by SHARKNINJA OPERATING LLC, Needham, MA (US)
Filed on Dec. 4, 2020, as Appl. No. 17/112,482.
Claims priority of provisional application 62/944,068, filed on Dec. 5, 2019.
Prior Publication US 2021/0175772 A1, Jun. 10, 2021
Int. Cl. H02K 5/20 (2006.01); H02K 7/08 (2006.01); H02K 9/06 (2006.01)
CPC H02K 5/207 (2021.01) [H02K 7/083 (2013.01); H02K 9/06 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A diffuser for use with an electric motor, the diffuser comprising:
a cylindrical body having a first end, a second end, and defining an opening extending from the first end to the second end to allow a rotor shaft of a rotor assembly of the electric motor to extend therethrough;
a rim disposed concentrically with and surrounding the cylindrical body;
a plurality of fins adjoining the cylindrical body to the rim, each of the plurality of fins having a first portion extending from the first end of the cylindrical body along a direction transverse to a longitudinal axis of the opening, and each of the plurality of fins having a second portion extending from the rim and tapering to a position adjacent the second end of the cylindrical body,
the rim having a height measured in the direction of the longitudinal axis that is less than the distance from the first end to the second end of the cylindrical body, whereby the rim only partially encompasses the plurality of fins such that the second portion of each of the plurality of fins is exposed to air.