| 摘要 |
PROBLEM TO BE SOLVED: To provide a vacuum cleaner capable of reliably cooling a secondary battery in a simple constitution and securing the silence in cooling.SOLUTION: A motor control unit 51 has a cleaning mode and a cooling mode separately. In the cleaning mode, a motor-driven blower 31 is operated to collect dust in a dust collection cup. In the cooling mode, the motor-driven blower 31 is operated at a lower speed than in the cleaning mode in the current-carrying state of a charge control unit 57, and at least a secondary battery 32 is cooled by exhaust air of the motor-driven blower 31. |
