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Title:
MOTOR-DRIVEN FAN FOR VACUUM CLEANER AND VACUUM CLEANER USING THIS FAN
Document Type and Number:
Japanese Patent JP3724413
Kind Code:
B2
Abstract:

PROBLEM TO BE SOLVED: To provide a small and highly efficient vacuum cleaner by obtaining a small, lightweight, and highly efficient motor-driven fan for the vacuum cleaner.
SOLUTION: This motor-driven fan 11 for the cleaner is composed of an impeller 14 having a mixed flow blade 22 inclining to a rotary surface in an outer peripheral end part of the lower end side long edge of a blade 22 being a curved surface of a quadrangle, and allowing a suction air current flowing along the blade 22 to flow out of an outlet at an angle between the radial direction and the shaft direction by flowing in the shaft direction from an inlet of the impeller 14, an air guide 16 arranged on the downstream side of the impeller 14, and an electric motor 13 for fixing and rotatably driving the impeller 14 to and on the shaft end. Thus, the small, lightweight, and highly efficient motor-driven fan is obtained, and the small and highly efficient vacuum cleaner is realized.


Inventors:
Hirose, Toru
Kayama, Hiroyuki
Kikukawa, Tomoyuki
Application Number:
JP2001000339102
Publication Date:
December 07, 2005
Filing Date:
November 05, 2001
Export Citation:
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Assignee:
MATSUSHITA ELECTRIC IND CO LTD
International Classes:
A47L9/00; A47L5/28; A47L9/16; A47L9/28; F04D23/00; F04D29/00; F04D29/04; F04D29/056; F04D29/26; F04D29/28; F04D29/40; F04D29/42; F04D29/44; (IPC1-7): F04D29/26; A47L9/00; F04D23/00; F04D29/40
Domestic Patent References:
JP2000017358A
JP59011197U
JP2000179491A
JP3039125A
Attorney, Agent or Firm:
岩橋 文雄
内藤 浩樹
永野 大介