Title:
ELECTRIC BLOWER, ELECTRIC VACUUM CLEANER, AND HAND DRYER
Document Type and Number:
WIPO Patent Application WO/2018/066134
Kind Code:
A1
Abstract:
Provided are an electric blower capable of effectively dissipating heat transmitted to a rotary shaft, and an electric vacuum cleaner and a hand dryer equipped with the electric blower. The electric blower is equipped with: an electric unit (10) including a rotary shaft (6); a centrifugal impeller (2) formed so as to surround at least a portion of the rotary shaft (6); and a heat-dissipation section (7) connecting the centrifugal impeller (2) to the rotary shaft (6). A first hole (2H) extending along an extending direction of the rotary shaft (6) is formed in a boss part (2a) of the centrifugal impeller (2). The heat-dissipation section (7) includes: a first part (7A) which is connected to the inner circumferential surface of the first hole (2H); and a second part (7B) which is connected to the first part (7A) in the extending direction and is positioned outside the first hole (2H). The length (L1) of the heat-dissipation section (7) in the extending direction is longer than the length (L2) of the first hole (2H) in the extending direction.
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Inventors:
IKEDA TAKASHI (JP)
ADACHI NAHO (JP)
HAMAZAKI MITSUMASA (JP)
TERAMOTO MASAYA (JP)
ADACHI NAHO (JP)
HAMAZAKI MITSUMASA (JP)
TERAMOTO MASAYA (JP)
Application Number:
PCT/JP2016/079999
Publication Date:
April 12, 2018
Filing Date:
October 07, 2016
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
MITSUBISHI ELECTRIC HOME APPLIANCE CO LTD (JP)
MITSUBISHI ELECTRIC HOME APPLIANCE CO LTD (JP)
International Classes:
A47K10/48; F04D29/58; A47L5/22; A47L9/00; F04D17/10
Foreign References:
| JP2014034935A | 2014-02-24 | |||
| JP2013032712A | 2013-02-14 | |||
| JP2008115759A | 2008-05-22 | |||
| JP2003180554A | 2003-07-02 | |||
| JP2016130453A | 2016-07-21 | |||
| JP2001032792A | 2001-02-06 | |||
| JP2014211127A | 2014-11-13 |
Attorney, Agent or Firm:
FUKAMI PATENT OFFICE, P.C. (JP)
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