公开(公告)号：US20140041152A1

公开(公告)日：2014-02-13

申请号：US13964909

申请日：2013-08-12

Applicant: Dyson Technology Limited

Inventor： James Martin COLEMAN ,  Simon Peter CROSS

IPC: A47L9/04

CPC classification number: A47L9/0416 ,  A47L9/0427

Abstract: A cleaner head that includes a suction inlet for admitting a first airflow, a turbine inlet for admitting a second airflow, an outlet for discharging the first airflow and the second airflow and an agitator and its drive assembly. A first airflow path then carries the first airflow from the suction inlet to the outlet, and a second airflow path carries the second airflow from the turbine inlet to the outlet. The drive assembly includes a turbine that is driven by the second airflow. A baffle is located in the second airflow path and is movable between an open position in which the second airflow path is unrestricted and a closed position in which the second airflow path is restricted. The baffle is biased in the open position and moves to the closed position when the dynamic pressure of the second airflow at the baffle exceeds a threshold.

Abstract translation: 一个清洁头，其包括用于允许第一气流的吸入口，用于允许第二气流的涡轮入口，用于排放第一气流的第一气流的出口和第二气流的搅拌器及其驱动组件。 然后，第一气流路径将第一气流从吸入口运送到出口，第二气流路径将第二气流从涡轮机入口运送到出口。 驱动组件包括由第二气流驱动的涡轮机。 挡板位于第二气流路径中并且可在第二气流路径不受限制的打开位置和限制第二气流路径的关闭位置之间移动。 当挡板上的第二气流的动态压力超过阈值时，挡板被偏置在打开位置并移动到关闭位置。