| 摘要 |
PROBLEM TO BE SOLVED: To provide a vacuum cleaner unit capable of preventing consumption of a secondary battery by reliably returning the vacuum cleaner to a charging device when failed in departure from the charging device without using any complicated structure or control.SOLUTION: When a vacuum cleaner body 11 departs from a charging device 12, from the connected state, by disconnecting the terminals 52 on vacuum cleaner body 11 from the charging terminals 57 on a charging device 12, and when a detection sensor 21 detects an obstruction O when the travel distance L from the charging device 12 is within a first predetermined distance, control means controls the motors 31, 31 to drive to return the vacuum cleaner body 11 to the charging device 12.SELECTED DRAWING: Figure 1 |
