Motor, design method thereof and fan

Abstract

The invention provides a motor, a design method thereof and a fan. The motor comprises a motor body (1), one end of the motor body (1) is provided with a shaft extension section (2) extending out of the motor body (1), the first end of the shaft extension section (2) is provided with a first axial limiting structure, and the second end of the shaft extension section (2) is provided with a second axial limiting structure; the flat washer (3) is arranged on the side, close to the second axial limiting structure, of the first axial limiting structure; the first damping gasket (4) is arranged on the side, facing the second axial limiting structure, of the flat washer (3), a shaft sleeve installation space is formed between the first damping gasket (4) and the second axial limiting structure, and the value range of the compression amount X of the first damping gasket (4) after installation is completed is 20% < = X < = 60%. According to the motor provided by the invention, the problems of relatively large noise and poor damping effect controllability caused by improper compression amount of the damping gasket in the use process of the fan can be solved.

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