Abstract: The wall breaker relies on the high-speed rotation of the motor to achieve cell wall breaking. At the same time, the rotation of the motor will produce a variety of noises, among which the turbulence noise is one of the main sound sources, and the frequency is very harsh. However, there are relatively few researches on turbulence noise. The existing noise reduction schemes add a casing outside the cup, which brings inconvenience to consumers. It is concluded that two kind of creative problem solving scheme by invention principle and science effect of TRIZ innovative tools and other technical means, the scheme greatly reduces the disturbing noise, especially the proposed helmholtz resonator schemes in noise reduction, it also can filter high frequency grating noise, make a further improvement of consumer experience.

Key words: High-speed Blender; Noise reduction; Triz