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Patent Searching and Data

Document Type and Number:
WIPO Patent Application WO/2018/025478
Kind Code:
[Problem] To provide a highly convenient electric vacuum cleaner that is able to continue driving an electric blower and secure operation time even when the internal resistance of a secondary battery is on the increase. [Solution] The electric vacuum cleaner according to the present invention is provided with: a secondary battery (4); an electric blower (8) that consumes electric power accumulated in the secondary battery (4) so as to generate negative pressure; and a control unit (9) that controls driving of the electric blower (8), and varies a discharge current of the secondary battery (4) on the basis of the difference between the terminal voltage of the secondary battery (4) while the electric blower (8) is stopped and the terminal voltage of the secondary battery (4) after a prescribed time has elapsed since the electric blower (8) has been started up.

UNE, Masamichi
YAJIMA, Yousuke
Application Number:
Publication Date:
February 08, 2018
Filing Date:
May 29, 2017
Export Citation:
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TOSHIBA LIFESTYLE PRODUCTS & SERVICES CORPORATION (25-1, Ekimae-honcho Kawasaki-k, Kawasaki-shi Kanagawa 43, 〒2108543, JP)
International Classes:
Attorney, Agent or Firm:
TOKYO INTERNATIONAL PATENT FIRM (2nd Floor, Miyata Building 17-16, Nishi-Shimbashi 1-Chome, Minato-K, Tokyo 03, 〒1050003, JP)
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