Rotary current collector

The invention discloses a rotary current collector. The rotary current collector comprises a centrifugal impeller and a current collector body, wherein the size of a front disc air current inlet of the centrifugal impeller is equal to that of an air current outlet of the current collector body; the centrifugal impeller is integrally connected to the current collector; and a connecting wire is a boundary line between the front disc air current inlet and the air current outlet. The rotary current collector solves the technical problems that a clearance is formed between the centrifugal impellerof an existing centrifugal fan and an air inlet current collector, resulting in low air current flowing efficiency in the impeller and fan running noise. 本申请公开了一种旋转式集流器，包括：离心叶轮和集流器；离心叶轮的前盘气流进口与集流器的气流出口尺寸一比一设置；离心叶轮与集流器一体化连接，连接线为前盘气流进口与气流出口的交界线。解决了现有的离心风机的离心叶轮与进气口集流器之间存在间隙，导致的叶轮内部的气流流动效率降低和风机运行噪音的技术问题。