基于集成式数字压力传感器的洗衣机水位检测方法  

The method of washing machine water level detection based on integrated digital pressure sensor

作　　者：朱小丽 周杰 高利敏 ZHU Xiaoli;ZHOU Jie;GAO Limin(Whirlpool(China)Co.,Ltd.,Hefei 230088)

机构地区：[1]惠而浦(中国)股份有限公司研发中心,安徽合肥230088

出　　处：《家电科技》2020年第3期80-83,共4页Journal of Appliance Science & Technology

摘　　要：在家用智能洗衣机设计中,洗衣机桶内水位高度检测的精度非常重要。水位是否精确直接影响到洗净比、能效、用户使用感受等方面。传统的水位传感器都是两线式或三线式,而且受到走线长短、温度、抗干扰性能的影响,检测精度仅能达到10%左右,导致洗衣机判断水位高度上的误差较大,不利于洗衣机的智能化控制。介绍一种集成式数字压力传感器来作为水位检测,可大大提高水位检测精度,有效保证水位误差在可控范围内,保证了洗衣机的能效、洗净比及用户体验。When design household intelligent washing machine,the accuracy of water level detection in washing machine barrel is very important.The accuracy of water level is directly reflected in the washing ratio,energy efficiency,user experience and so on.Traditional water level sensors are two-wire or three-wire,and the detection accuracy can only reach about 10%due to the influence of line length,temperature and anti-interference performance,which leads to a large error in judging the height of water level in the washing machine,which is not conducive to the intelligent control of the washing machine.Introduces an integrated digital pressure sensor for water level detection,which can greatly improve the accuracy of water level detection,effectively ensure the water level error within a controllable range,and ensure the energy efficiency,washing ratio and user experience of the washing machine.

关 键 词：自动控制 压力传感器 水位检测 

分 类 号：TM925.33[电气工程—电力电子与电力传动] S951.43[农业科学—水产养殖]