The Role of BLDC Motor Magnets in Reducing Motor Noise

Brushless DC (BLDC) motors are preferred nowadays because of their efficiency, reliability, and versatility in use across many sectors. One of the key factors in their performance is the role played by BLDC motor magnets. However, a less-explored topic is how these magnets influence motor noise. In most of the applications ranging from home appliances to electric vehicles, the noise produced by motors is a big issue. This blog will discuss a special relationship between BLDC motor magnets and motor noise, with an emphasis on how the geometry and properties of magnets influence the general level of noise in BLDC motors. Understanding BLDC Motor Magnets and Motor Noise BLDC motors use permanent magnets to produce the magnetic field that in turn rotates the rotor. These magnets can be made of different materials and all these materials affect every aspect of motor performance including noise. Motor noise in BLDC motors typically originates from two main sources: ● ...