DRAINING AND SPINNING CONTROL METHOD FOR SELF-CLEANING LAUNDRY MACHINE

• Main Authors: XU, Sheng, LV, Yanfen, LIU, Zunan
• Format: Patent
• Language: English; French; German
• Published: 07.11.2018
• Subjects: FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR; LAUNDERING; LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILEARTICLES; TEXTILES; TREATMENT OF TEXTILES OR THE LIKE

The present disclosure provides a drainage and dewatering control method for a self-cleaning washing machine. Cleaning particles (4) for cleaning the outer wall of an inner tub (2) and the inner wall of an outer tub (1) along with the movement of a water flow are arranged in a space (3) located between the inner tub and the outer tub of the washing machine. The drainage and dewatering control method comprises: receiving a drainage instruction, and opening a drainage valve (5); determining the amount of the cleaning particles (4) per each unit volume of water in the space (3); and controlling the rotating speed of the inner tub (2), and regulating the frequency of friction and collision between the cleaning particles (4) and the inner and outer tub walls. The washing machine divides drainage and dewatering processes into at least two control stages according to the amount of the cleaning particles (4) per each unit volume of water in the space (3), different rotating ways of the inner tub (2) are set in respective stages, and the rotating speed of the inner tub (2) is higher in the stage that the amount of the cleaning particles (4) per each unit volume of water is larger. The washing machine selects the corresponding control stage in the drainage and dewatering processes according to the detected amount of the cleaning particles (4) per each unit volume of water in the space (3). The control method provided by the present disclosure is simple and can be used for completely removing dirt on the walls of the tubs of the washing machine, keeping a washing environment clean, avoiding secondary pollution and increasing the cleaning rate of clothes.