Research For Washing Technique & Manufacture Of New-style Home Dishwasher

With the development of standard of living and quickening of working rhythm, the criterion to choose electrical household appliances has been changed from only pursuing functional realization primarily to regarding energy-conservation, security, environmental protection as basic goal, progressively. Since the reform and opening-up, the popularization of our electrical household products has already reached to quite high degree. However, the field of home dishwasher has had enormous market potential but undeveloped field all the time. It is mainly because the traditional dishwasher products can't meet the needs of washing of Chinese tableware, washing time is long and energy consumption is great. Aimed at these problems, ultrasonic cleaning technology is applied in the field of home dishwasher. And an ultrasonic dishwasher with energy-conservation and environmental protection was encouraged to research and develop.Aimed at the characteristics of ultrasonic rinse and tableware cleaning and the instructions for use, a bran-new design is made in three aspects of the dishwasher: the bulk structure, washing technique, automatic control.In the aspect of structure, the cleaning trough is made of the stainless steel; structure is more compact, control is easier and the cleaning effect is better through the designs of ultrasonic system, multi-orientation spray system and the control system of water level;In the aspect of cleaning technique, the intensity of relative cavitation in the cleaning trough is analyzed by the method of corroding aluminum foil, which provided the basis for the choice of ultrasonic cleaning parameter. Then ultrasonic cleaning parameter and cleaning procedure are confirmed excellently through the method of orthogonal experimental design. The best parameter is ultrasonic power 300w, swept, cleaning time 9 min, room temperature and the cleaning procedure is: sprinkling with 45 C hot water(5 min.)-rinse with ultrasonic(9 min.) -sprinkling with 60 C hot water(5 min.);In the aspect of automatic control, AT89S52 is chosen as the core of the control and the working time of every assembly unit is used as logic order. So the intellectualized control of washing process is realized.