Motor rotors, motors, air conditioners

Abstract

The invention provides a motor rotor, a motor and an air conditioner, wherein the motor rotor includes an inner iron core and an outer iron core, a first gap is formed between the outer iron core and the inner iron core, and the outer iron core at least includes a first iron core segment and a second core segment located at at least one end of the first core segment, the first core segment has a first axial flow portion, the first axial flow portion communicates with the first gap, and the second core segment has a The second axial flow portion, the first axial flow portion is communicated with the second axial flow portion in the axial direction, and the first axial flow portion, the second axial flow portion and the first gap are filled with a first shock absorber body. According to the present invention, the first shock absorber is an organic whole, which improves the support strength and connection strength of the first shock absorber to the inner iron core and the outer iron core, thereby improving the shock absorption effect of the entire motor rotor, effectively avoiding In the prior art, the weight of the motor rotor is concentrated on the outer iron core, which leads to problems such as poor dynamic balance and poor strength.

Description

technical field [0001] The invention belongs to the technical field of motor manufacturing, and in particular relates to a motor rotor, a motor and an air conditioner. Background technique [0002] With the guidance of the government's energy-saving policy and the needs of market development, the direct currentization of household appliance fans has gradually become a trend. At present, the brushless motors used in the industry are all radial magnetic field surface mount structures, which have low motor power density and low material utilization. [0003] Due to the rising market price of motor raw materials, high power density motors have become the development trend of brushless DC motors. In permanent magnet motors, in order to improve the motor performance, it is usually necessary to obtain higher magnetic performance of the rotor. Under the limited structure, compared with the surface-mounted and embedded radial rotors, the built-in tangential rotor structure can effect...

AI Technical Summary

Problems solved by technology

[0004] Therefore, the present invention provides a motor rotor, a motor, and an air conditioner, which can overcome the deficiencies of the related art, such as the lack of shock-absorbing support and positioning of the outer iron core, poor dynamic balance of the rotor, and poor shock-absorbing effect.

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