| 摘要 |
<p>The vacuum cleaner (10) has a suction device fan (12) designed as an axial fan, and a filter (28) i.e. fine particle filter, arranged in a dust area (26), where direction of air flow (22) produced by the fan is reversible by the filter during rotation direction reversal of the fan. A control electronic system (36) is provided for automatically reversing the direction of the air flow through the filter during a suction process. The device fan is driven by a motor (14) i.e. brushless permanent magnet motor, where the electronic system is provided with a microprocessor. An independent claim is also included for a method for operating a vacuum cleaner.</p> |
