Stator and compressor

Abstract

The present invention provides a stator and a compressor, and relates to the technical field of compressors. The stator comprises a stator body, fan-shaped protrusions are arranged on an iron core onthe outer edge of the stator body, and the number of the fan-shaped protrusions is determined according to the maximum common divisor of the number of motor tooth grooves where the stator is installed. By arranging the fan-shaped protrusions, the contact area between the stator and the machine body is reduced, contact between the stator and the machine body is reduced, vibration transmission is weakened, and the noise reduction effect is achieved. The compressor comprises a shell and further comprises the stator, the shell comprises an upper shell body and a lower shell body, and the lower shell body is provided with openings used for installing the fan-shaped protrusions of the stators. According to the compressor, the openings matched with the stator are formed in the lower shell to addconnection between the stator and the shell, so that the overall rigidity of the compressor is improved, vibration is reduced, and the noise reduction effect is achieved.

Description

technical field [0001] The invention relates to the technical field of compressors, in particular to a stator and a compressor. Background technique [0002] For air-conditioning products, in addition to the cooling effect, the noise is also the key to evaluating a product, and the noise seriously affects the user experience. During the operation of the air conditioner, the main causes of noise are mechanical noise, aerodynamic noise, and electromagnetic noise. Among them, the electromagnetic noise is excited by the electromagnetic harmonics generated by the drive motor of the compressor during operation. The vibration of the stator is transmitted to the casing through the outer surface of the stator, causing the casing to vibrate to varying degrees; the liquid distributor connected to the casing is transmitted by the vibration of the motor, and the liquid distributor casing is relatively thin and the radiation surface is relatively large. Therefore, the 6-fold frequency vi...

AI Technical Summary

Problems solved by technology

[0003] During the assembly process of the compressor, the stator and the housing adopt an interference fit, and the clamping force of the housing acting on the stator will have a certain impact on the roundness of the inner circle of the stator, resulting in uneven magnetic field in the air gap of the motor, radial electromagnetic The force increases, so that the noise impact is very bad, and in severe cases, it will cause the phenomenon of sweeping the bore, and even cause high temperature in the inner circle of the stator, which will make the insulation in the slot brittle and fail, causing the winding to be grounded or short-circuited

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