Patent ID: 9531229
Filing Date: 2016-12-27
CPC Classification: H02K

Claim Text:
1. A brushed rotatory device, comprising: a rotor including a shaft, a rotor core and a commutator attached to the shaft; a housing assembly surrounding the rotor; an impeller assembly mechanically coupled to the shaft of the rotor and adjacent to the commutator and remote from the rotor core; an end cap assembly attached to a first end of the housing assembly adjacent the commutator and including a base having at least one opening formed therein, a sidewall extending from the base around a periphery of the at least one opening in an axial direction of the shaft of the rotor and surrounding the commutator of the rotor, and a plurality of brush holders attached to the base; and a plurality of brushes disposed in the plurality of brush holders of the end cap assembly and in sliding contact with the commutator of the rotor; and wherein the end cap assembly further comprises a flow channel having a first end communicating with a plurality of air passageways of the impeller assembly, and the flow channel is arranged downstream of the impeller assembly along a circumferential direction of the end cap assembly.