US 12,228,144 B2
Fan assembly and air conditioner
Fuquan Wei, Foshan (CN); Yandong Wu, Foshan (CN); and Lihua Ma, Foshan (CN)
Assigned to GD MIDEA HEATING & VENTILATING EQUIPMENT CO., LTD., Foshan (CN); and HEFEI MIDEA HEATING & VENTILATING EQUIPMENT CO., LTD., Hefei (CN)
Appl. No. 18/564,013
Filed by GD MIDEA HEATING & VENTILATING EQUIPMENT CO., LTD., Foshan (CN); and HEFEI MIDEA HEATING & VENTILATING EQUIPMENT CO., LTD., Hefei (CN)
PCT Filed Apr. 28, 2022, PCT No. PCT/CN2022/089939
§ 371(c)(1), (2) Date Nov. 24, 2023,
PCT Pub. No. WO2023/279817, PCT Pub. Date Jan. 12, 2023.
Claims priority of application No. 202121538970.9 (CN), filed on Jul. 7, 2021.
Prior Publication US 2024/0301893 A1, Sep. 12, 2024
Int. Cl. F04D 17/16 (2006.01); F04D 29/42 (2006.01); F04D 29/44 (2006.01); F04D 29/66 (2006.01)
CPC F04D 29/4233 (2013.01) [F04D 17/16 (2013.01); F04D 29/422 (2013.01); F04D 29/441 (2013.01); F04D 29/667 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A fan assembly comprising:
a volute including a volute body and a volute tongue connected at an opening of the volute body; and
a fan wheel arranged at least partially in the volute body;
wherein:
the volute tongue includes a flow diffusion part, a flow-passing part, and a sinking platform;
the flow-passing part is located at two sides of the flow diffusion part in an axial direction of the fan wheel;
a top surface of the flow-passing part is higher than a top surface of the flow diffusion part; and
the sinking platform is located at a side of the flow-passing part that is away from the flow diffusion part, and a top surface of the sinking platform is lower than the top surface of the flow-passing part.