Patent ID: 9644635
Date: 2017-05-09
CPC Classifications: F04D

Claim:
1. An electric blower comprising: a field magnet held by a bracket; an armature including a pair of bearings at both ends of an armature shaft, and being supported by the pair of the bearings; a pair of brushes disposed in the bracket; a fan disposed on an output side of the armature shaft, and including: an air guide disposed on an exhaust side of the fan; a fan case covering the fan and the air guide, and including a fan seal disposed between an inner wall surface of the fan case and a suction port-side end surface of the suction-side shroud, and including: wherein the inner peripheral surface, the outer peripheral surface, and the inner wall surface extend in the direction of the airflow from the opening part to the suction port, the opening part includes a plurality of mushroom-shaped anchors, and the fan seal includes a holding part fitting onto the mushroom-shaped anchors in the direction of the airflow from the opening part to the suction port, wherein the opening part includes: wherein the guide part includes the plurality of the mushroom-shaped anchors at a periphery of the suction port-side opening end in a thrust direction in which the guide part extends, wherein the holding part is a bump for supporting the mushroom-shaped anchors on the inner peripheral surface, and wherein t1 is larger than t2, where t1 is a thickness of the bump, equal to a dimension of protrusion of the bump from the inner peripheral surface, and t2 is a thickness of the guide part.