Axial flow fan blade, axial flow fan and air conditioner

• Main Authors: ZHANG SHIQIANG, XIANG WU, ZENG CHENG, XIA KAI, MA QUYANG
• Format: Patent
• Language: Chinese; English
• Published: 11.01.2022
• Subjects: BLASTING; HEATING; LIGHTING; MECHANICAL ENGINEERING; NON-POSITIVE DISPLACEMENT PUMPS; POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS; WEAPONS

The utility model provides an axial flow fan blade, an axial flow fan and an air conditioner, the axial flow fan blade comprises a hub part and blade bodies, the blade bodies are arranged in the circumferential direction of the hub part, each blade body comprises a pressure surface, a rough surface section is arranged on each pressure surface, and each rough surface section is arranged along the edge of the end, away from the hub part, of the corresponding pressure surface. According to the axial flow fan blade, the axial flow fan and the air conditioner, the strength of blade tip leakage vortexes can be restrained, the acting efficiency of the fan blade is improved, and aerodynamic noise generated when the fan runs is reduced. 本申请提供了一种轴流风叶、轴流风机和空调器，包括轮毂部和叶片本体，所述叶片本体沿所述轮毂部的周向排布，所述叶片本体包括压力面，所述压力面上设置有糙面段，所述糙面段沿所述压力面远离所述轮毂部的一端的边缘设置。本申请提供的一种轴流风叶、轴流风机和空调器，能够抑制叶尖泄漏涡的强度，提升风叶的做功效率，减少风机运转时的气动噪声。