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1. (WO2018040931) DRYNESS DETERMINATION METHOD FOR CLOTHES DRYER

Pub. No.:    WO/2018/040931    International Application No.:    PCT/CN2017/097874
Publication Date: Fri Mar 09 00:59:59 CET 2018 International Filing Date: Fri Aug 18 01:59:59 CEST 2017
IPC: D06F 58/28
Applicants: QINGDAO HAIER DRUM WASHING MACHINE CO., LTD.
青岛海尔滚筒洗衣机有限公司
Inventors: SONG, Huacheng
宋华诚
XU, Sheng
许升
TIAN, Shujun
田书君
ZHAO, Zhiqiang
赵志强
Title: DRYNESS DETERMINATION METHOD FOR CLOTHES DRYER
Abstract:
A dryness determination method for a clothes dryer. The method comprises: when clothes drying is started, detecting temperatures of different positions in a clothes drying cylinder (1), and according to the detected temperature differences, determining whether or not the clothes drying is completed. Furthermore, the detection of the temperatures of the different positions in the clothes drying cylinder (1) comprises: detecting temperatures of M*N positions in the clothes drying cylinder (1) by an infrared temperature sensor (2) in a matrix manner, and specifically, comparing the detected temperature values with an out-of-cylinder temperature to determine whether or not the clothes drying is completed, or obtaining a difference between the maximum value and the minimum value of the detected temperatures, and when the difference value falls within a pre-set range, determining that the clothes drying is completed. During the clothes drying process, the detection is performed many times, and when it is detected that temperature differences between temperature measurement points change from large to small or that a temperature reduction rate of the measurement points changes from large to small, it is determined that the clothes are dry. The dryness determination method is high in accuracy of determination, protects clothes from being scalded, dries the clothes uniformly and improves the efficiency of the clothes drying.