产品设计课程设计说明书设计题目：洗衣机设计工程机械学院工业设计班设计者：王璐希杨兵兵魏马丁指导老师：张伟社目录一．市场调查1.洗衣机概述···············································第 3 页2.洗衣机的分类·············································第 3 页3.按洗衣原理分类，不同类型洗衣机比较·······················第 3 页4.用户选购·················································第 5 页二．设计分析1.洗衣机功能分析··········································第 6 页（1）利用黑箱法确定总功能（2）逆推法建立洗衣机功能树（3）绘制功能结构图2.根据功能树，求各个功能元解······························第13 页3.原理方案组合············································第15 页三、评价筛选1.功能元的解的筛选·········································第17 页2.方案组合·················································第21 页3.方案筛选·················································第23 页（1）评价目标权重计算（2）建立洗衣机目标树（3）洗衣机原理解方案确定（4）洗衣机原理方案优化4.最终方案确定·············································第27 页四．最终方案展示········································第34 页五．心得体会············································第33 页六．参考文献·············································第32 页一．市场调查1.洗衣机概述洗衣机（washing machine/washer）是利用电能产生机械作用来洗涤衣物的清洁电器。

机械力、洗涤液、水是洗衣机洗涤过程中的三要素。

洗衣机运动部件产生的机械力和洗涤液的作用使污垢与衣物纤维脱离。

加热洗涤液，可增强去污效果。

织物不同，适宜液温也不同。

反映洗衣机洗涤性能（即洗净衣物的能力）的主要指标是洗净率（或洗净比）和织物磨损率。

2.洗衣机的分类[3]（1）按结构形式分单桶、双桶、多桶型（2）按洗涤方式／结构原理分A.滚筒式洗衣机：衣物半浸没于水中，滚筒作有规律的间歇的正反转动，*滚筒内凸筋把衣物带至高处再跌下，起揉搓作用，进行洗涤。

类型：（1）前装式滚筒洗衣机（2）顶装式滚筒洗衣机B．波轮式（涡卷式）洗衣机：优点：结构简单，体积小，重量轻，操作方便，耗电量少，洗净率高。

缺点：漂洗衣物不均匀，损衣率高。

C．搅拌式或摆动（叶）式洗衣机：洗衣机有一根主柱，由电动机带动摆动叶绕定轴作周期往复运动，每次转动角度小于360度。

D.其他：喷流式、喷射式、振动式等，市场上比较少见。

（3）按自动化程度分A．普通型洗衣机：搅拌动作为电动机带动正转、反转及停*定时器控制而进水、排水、脱水等完全手动。