关键词: Mini滚筒式洗干一体机, 搅拌结构, 冷凝盘, 冷凝直排式烘干

Abstract: The mini drum-type washer-dryers often suffer from low Washing Efficiency Index due to their small inner drum diameter, which limits the tumbling action. Furthermore, its direct-exhaust drying method expels 100% of the hot, humid air, leading to condensation issues on adjacent cabinets or walls. To address these problems, washing and drying methods specifically adapted to its inner and outer drum structures were developed. By adding an agitator structure to the back wall of the inner drum, the cleaning ratio was increased to meet the national grade A standard. Additionally, a metal condensing fin is integrated onto the back wall of the outer drum to condense moisture from the hot, humid air. The reduces hot, humid air emissions by over 50% while simultaneously increasing drying speed by over 40%, achieving a condensed direct-exhaust drying technology that controls post-drying moisture content within ±3%. This research provides theoretical and practical guidance for subsequent solutions aimed at enhancing the cleaning ratio in mini drum washers and improving the drying efficiency of washer-dryers equipped with direct exhaust vents. It supports the advancement of mini drum washers towards high cleaning performance and rapid drying capabilities.

Key words: Mini drum-type washer-dryer, Agitator structure, Condensation fin, Condensed direct-exhaust drying