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公开(公告)号：US20170051755A1
公开(公告)日：2017-02-23
申请号：US15240295
申请日：2016-08-18
发明人： Feng LIU , Chuan Hui FANG , Feng XUE , Huan HE
摘要： A fan of a vacuum cleaner includes a motor, an impeller, and a diffuser. The diffuser includes a bottom plate and guide vanes disposed on the bottom plate. The guide vanes are evenly spaced and arranged along a circumferential direction of the bottom plate. Each guide vane extends obliquely from an inner edge to an outer edge of the bottom plate. An outer end of each guide vane extends beyond the outer edge of the bottom plate. Each guide vane is deflected an angle of 30 to 70 degrees with respect to a tangential direction of the bottom plate at the inner end of the guide vane. The outer end of each guide vane is deflected an angle of 35 to 120 degrees along a circumferential direction with respect to the inner end of the guide vane.
摘要翻译： 真空吸尘器的风扇包括电动机，叶轮和扩散器。 扩散器包括底板和设置在底板上的导向叶片。 导向叶片沿着底板的圆周方向均匀间隔设置。 每个导叶从底板的内边缘向外边缘倾斜延伸。 每个导向叶片的外端延伸超过底板的外边缘。 每个导叶相对于导叶内端的底板的切线方向偏转30度至70度的角度。 每个导向叶片的外端相对于导向叶片的内端沿圆周方向偏转35度至120度的角度。
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公开(公告)号：US20170051756A1
公开(公告)日：2017-02-23
申请号：US15240324
申请日：2016-08-18
发明人： Chuan Hui FANG , Feng XUE , Hong Guang LI , Huan HE
CPC分类号： F04D29/444 , F04D17/165 , F04D25/08 , F04D29/281 , F04D29/4213 , F05B2240/12 , F05B2240/14 , F05B2240/20 , F05B2250/502 , F05B2260/96 , F05D2250/52
摘要： A diffuser, an airflow generating apparatus, and an electrical device are provided. The airflow generating apparatus includes a motor; an impeller including blades with air passages formed therebetween; and a diffuser including diffusing vanes with diffusing channels formed therebetween. In a flow region defined between a terminating end of one diffusing vane and a starting end of another adjacent diffusing vane, an intersection line between a bottom of the diffusing channel between the two diffusing vanes and its circumferential section includes a front arcuate line segment and a subsequent straight line segment, the arcuate line segment extends curvedly, outwardly and downwardly from or from adjacent an inlet end of the diffusing channel, the straight line segment connects to the arcuate line segment and extends to an outlet end of the diffusing channel. The diffusing channel is designed to improve the operating efficiency of the airflow generating apparatus.
摘要翻译： 提供扩散器，气流发生装置和电气装置。 气流发生装置包括电动机; 包括叶片的叶轮，其间形成有空气通道; 以及扩散器，其包括在其间形成有扩散通道的扩散叶片。 在一个扩散叶片的终端和另一个相邻的扩散叶片的起始端之间限定的流动区域中，两个扩散叶片与其圆周部分之间的扩散通道的底部之间的相交线包括前弓形线段和 随后的直线段，弓形线段从扩散通道的入口端或从邻近扩散通道的入口端向外和向下弯曲地延伸，直线段连接到弓形线段并延伸到扩散通道的出口端。 扩散通道被设计成提高气流发生装置的操作效率。
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