Other

Midea Group Co., Ltd.

Gd Midea Air-conditioning Equipment Co., Ltd.

Guangdong Midea White Home Appliance Technology Innovation Center Co., Ltd.

Shuqi Li

Tao Zhang

Hui Zhang

Tao Wang

Jizhe Zhang

Lele Ming

Jinbo Li

Xiaowen Hu

Xujie Cai

Zhu Yang

Heijie Zhou

A counter-rotating fan, comprising an impeller assembly and an air guide structure. The impeller assembly comprises a first stage impeller and a second stage impeller, of which the rotation directions are opposite. The pressure surfaces of first blades of the first stage impeller are configured to be opposite the suction surfaces of second blades of the second stage impeller, and from the blade root to the blade tip, each of the first blades and the second blades bends toward its own rotation direction. The air guide structure comprises a flow guide cover. The flow guide cover is provided at the center position of the air intake side of the first stage impeller, and the air intake side surface of the flow guide cover at least partially forms a flow guide surface, the flow guide surface extending along the axis of the first stage impeller in the direction away from the counter-rotating fan.

Counter-rotating fan

A vacuum clear and an electric motor module () therefor are provided. The electric motor module () includes an outer casing () provided with an air inlet () at a front side thereof and an air outlet () at a rear side thereof; an electric motor assembly () arranged in the outer casing (), and cooperating with the outer casing () to define an air passage in communication with the air inlet () and the air outlet (); and a silencer () arranged at the air inlet (), defining at least one resonant cavity therein, and the at least one resonant cavity having a side wall provided with a throat in communication with the resonant cavity.

Vacuum cleaner and electric motor module thereof

Growing community of inventors

Foshan, China

Shuqi Li