Gree Electric Appliances, Inc. of Zhuhai

Binhua Long

Hao Liu

Zhongjie Liu

Feng Cao

Jianhuang Zou

Tan Chen

Jian Liu

Weifeng Zhu

Ying Feng

A drying air duct, a clothing treatment device and a method for cleaning a drying air duct are provided. The drying air duct includes a condensing section air duct, a heating section air duct and a fan; the fan is provided at a connection position of the condensing section air duct and the heating section air duct, a cleaning device is provided in the condensing section air duct, the cleaning device is provided at an end of the condensing section air duct adjacent to the fan and is capable of cleaning a side of the condensing section air duct away from the fan. The drying air duct can effectively clean the pipe sudden expansion area of the condensing section air duct, preventing the accumulation of soft flocks in the condensing section air duct.

Drying air duct, clothing treatment device, and method for cleaning drying air duct

A blade, an impeller and a fan are provided. A trailing edge () of the blade () is provided with at least one concave arc segment (). At least one end point of the at least one concave arc segment () is located between a radial outer edge () of the blade () and a radial inner edge () of the blade (). The blade () is provided with at least one ridge structure protruding from a pressure surface () of the blade () toward a suction surface () of the blade (). The blade is provided with at least one concave arc segment at a trailing edge thereof on the basis of a bionics principle, and is further provided with a ridge structure, thus improving an airflow pattern at the trailing edge of the blade by means of changing a shape of the blade, and reducing noise accordingly.

Blade, impeller and fan

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Guangdong, China

Binhua Long