EP 1297772 A2 20030402 - Centrifugal blower for vacuum cleaner
Title (en)
Centrifugal blower for vacuum cleaner
Title (de)
Kreiselgebläse für Staubsauger
Title (fr)
Soufflante centrifugal pour aspirateur
Publication
Application
Priority
- KR 20010059485 A 20010926
- KR 20020000250 A 20020103
- KR 20020000253 A 20020103
Abstract (en)
Disclosed is a centrifugal blower for a vacuum cleaner capable of achieving an improvement in motor cooling efficiency. The centrifugal blower includes air guides so that air sequentially passing through an impeller (54), diffuser vanes (56), and guide vanes (7) is guided in a concentrated fashion toward the rotor (64) of a motor (60). Accordingly, the rotor (64) generating a large amount of heat during operation of the motor (60) is effectively cooled, so that it is possible to achieve an improvement in the reliability of the motor while extending the life span of the motor, and reducing the insulation grade of the motor. <IMAGE>
IPC 1-7
IPC 8 full level
A47L 5/22 (2006.01)
CPC (source: EP)
A47L 5/22 (2013.01)
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
EP 1297772 A2 20030402; EP 1297772 A3 20030813; EP 1297772 B1 20100331; DE 60235788 D1 20100512
DOCDB simple family (application)
EP 02013503 A 20020617; DE 60235788 T 20020617