ELECTRIC VACUUM CLEANER Russian patent published in 2012 - IPC A47L9/28 

FIELD: personal use articles.

SUBSTANCE: invention relates to an electric vacuum cleaner, comprising multiple electric fans. The electric vacuum cleaner comprises the main unit 11 of the vacuum cleaner, comprising electric fans 15A and 15B. The electric vacuum cleaner includes a control facility 16, which may control actuation of electric fans 15A and 15B independently on each other. The control facility 16 has a mode of medium power and a mode of weak power, in which remaining electric fans 15, excluding, at least any one of the electric fans 15, are actuated, and a mode of high power, in which all electric fans 15 are actuated, and when switching from the mode of high power into the mode of medium power (mode of weak power), the control facility 16 actuates at least the electric fan 15, which was not actuated in the previous mode of medium power (mode of weak power). Total working times of action of electric fans 15 are installed as identical, and the operation life may be additionally increased.

EFFECT: increased service life of a vacuum cleaner.

5 cl, 9 dwg