Abstract: Drum washing machine through many washing modes to improve the washing degree of clothes, in addition to the washing mode, drum washing machine inner cylinder structure and water blade structure also affect the washing degree of clothes, inner cylinder components and affect the energy consumption of the whole machine. In order to improve the washing ratio of the washing machine and reduce the energy consumption of the whole machine, this study based on the principle of the fastest falling line, through theoretical analysis, innovative design and application of a new inner barrel component on the whole machine, set up a washing machine energy consumption test platform, and verified that the washing machine can realize the spray function during the washing process, and the inner barrel pressure structure is conducive to rapid drainage and drying. The cleaning ratio of the whole machine is increased to 1.10 level, far exceeding the 1.03 level energy efficiency standard stipulated by the state. The power consumption is 0.72 kW·h per cycle, which is 5.1% lower than that of similar products, and the water consumption is 56 L/(cycle·kg), which is 12.2% lower than that of similar products, which reduces the energy consumption of the whole machine and significantly improves the user experience.

Key words: Drum washing machine, Paddling leaf, Inner cylinder, Brachistochrone, Spray function