The utility model discloses a
noise reduction spiral structure air duct, relates to food blender field, including blender shell, the bottom surface of blender shell inside is fixedly equipped with spiral air duct and is located the motor subassembly right above spiral air duct, the bottom of motor subassembly is movably connected with the wind wheel that is located spiral air duct inner side, and the wind wheel is connected with the motor subassembly right above the spiral air duct. A sealing strip is attached to the top of the spiral
air channel, and the spiral
air channel is matched with the motor
assembly and the stirrer shell to wrap the wind wheel. According to the utility model, the spiral air duct is arranged outside the wind wheel between the stirrer shell and the motor
assembly, and the spiral air duct adopts a long spiral structure design, so that the length of the spiral air duct is increased in a limited space, the flowing time of air in the spiral air duct is effectively prolonged, and the length of a
noise transmission path is increased; therefore, the transmission of
noise of the
machine can be effectively reduced, the bass effect of the
machine is improved, and the user experience is improved.