Title:
ELECTRICALLY POWERED BLOWER
Document Type and Number:
WIPO Patent Application WO/2003/054394
Kind Code:
A1
Abstract:
The invention provides an electrically powered blower constructed so that it is capable of fully cooling its motor and efficiently cooling the power element in a drive circuit without involving such need as of increasing the size of the fin of a separate heat radiator, contributing to miniaturization of electric equipment. The electrically powered blower comprises a power element (10) included in a drive circuit (9) and connected to a motor casing (B). Since the motor casing (B) serves as a cooling fin for the power element (10), a great effect on cooling can be obtained, and a heat radiator separate from the motor casing is not required, thus contributing to miniaturization of electric equipment.
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Inventors:
FUJITA KATSUTOSHI (JP)
UENO MAKOTO (JP)
FUJIKI SHIGEAKI (JP)
SHIMASAKI TETSUO (JP)
UENO MAKOTO (JP)
FUJIKI SHIGEAKI (JP)
SHIMASAKI TETSUO (JP)
Application Number:
PCT/JP2002/012880
Publication Date:
July 03, 2003
Filing Date:
December 09, 2002
Export Citation:
Assignee:
MATSUSHITA ELECTRIC IND CO LTD (JP)
FUJITA KATSUTOSHI (JP)
UENO MAKOTO (JP)
FUJIKI SHIGEAKI (JP)
SHIMASAKI TETSUO (JP)
FUJITA KATSUTOSHI (JP)
UENO MAKOTO (JP)
FUJIKI SHIGEAKI (JP)
SHIMASAKI TETSUO (JP)
International Classes:
A47L5/22; F04D25/08; H02K7/14; H02K9/02; H02K9/06; H02K11/04; (IPC1-7): F04D29/00; F04D29/44; F04D29/58; H02K9/02
Foreign References:
| JPS644897U | 1989-01-12 | |||
| EP1138242A2 | 2001-10-04 | |||
| JPH02204699A | 1990-08-14 | |||
| JPH03178619A | 1991-08-02 | |||
| JPH03111700A | 1991-05-13 | |||
| JP2002031084A | 2002-01-31 | |||
| JP2002048099A | 2002-02-15 |
Attorney, Agent or Firm:
Morimoto, Yoshihiro (4th Floor 10-10, Nishi-Hommachi 1-chome, Nishi-k, Osaka-shi Osaka, JP)
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