| 摘要 |
PROBLEM TO BE SOLVED: To simultaneously perform the reliable cooling of a heat generation component and the reliable exhaust guide for preventing exhaust leakage by arranging a suction port in the rear part of a self-propelled vacuum cleaner. SOLUTION: The self-propelled vacuum cleaner includes: travelling devices 30, 40 arranged in a substantially columnar shape self-propelled vacuum cleaner body and generating driving force; driving wheels 31, 41 arranged in the travelling devices; the suction port 53 arranged in the rear part form the driving wheels and opened toward a floor surface; an electric blower 90 for generating suction force to take-in the air from the suction port; a battery pack 5 arranged in the rear part of the body; a dust collection part 80 connected to the suction port; an external exhaust port 400 arranged in the rear part of the body; and ventilation passages for guiding the exhaust discharged from the air exhaust port of the electric blower to the external exhaust port 400 and discharging the exhaust to an external part. The two ventilation passages are formed. One passage is formed between the electric blower 90 and the left travelling device 30, and the other passage is formed between the electric blower and the right travelling device 40. COPYRIGHT: (C)2009,JPO&INPIT
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