Compressor and air conditioner

Abstract

The invention discloses a compressor and an air conditioner. The compressor (300) comprises a driving motor, wherein the motor comprises a plurality of stacked stator punching sheets (1), the stator punching sheets are annular sheets, a plurality of stator grooves (2) are formed in annular faces of the stator punching sheets, penetrate through in the axial direction and are distributed in the peripheral direction at intervals, the stator grooves are rectangular grooves extending in the radial direction, and corners of the rectangular grooves are formed into round chamfers (21), wherein the short edge length D of each stator groove is 1.6mm to 4.2mm, the corner radius of each round chamfer is R, and a requirement that D / R is equal to 2 to 4 is met. According to the compressor, shapes of the rectangular stator grooves are designed in a targeted mode, the round chamfers of the corners are optimized and designed based on not changing approximate rectangular primary profiles, the minimum widths and the areas of stator teeth are increased, flux density of stator tooth shoes is reduced, and main flux conduction is improved. In addition, the design of the round chamfers can enable the round chamfers to be matched with technological corners of winding conductors in the grooves, the areas of the grooves can be utilized to the maximum degree, the motor can obtain a higher stator groove full rate, and accordingly efficiency of the motor is finally improved.

Description

technical field [0001] The invention belongs to the field of compressors, and in particular relates to an air conditioner and a compressor thereof. Background technique [0002] Noise is one of the most important indicators for evaluating the comfort of an air conditioner. The noise of an air conditioner mainly comes from the compressor it uses, and the motor that drives the compressor is the excitation source of the compressor noise. Therefore, the noise reduction of the air conditioner compressor and its motor is to improve An important means and method of air conditioning comfort requirements. In addition, with the continuous improvement of energy saving and emission reduction requirements and environmental protection standards, the market's energy efficiency requirements for air conditioners and compressors used in them are also increasing simultaneously, that is, there are stricter requirements for the efficiency of compressor motors. [0003] In the prior art, the mot...

AI Technical Summary

Problems solved by technology

Among them, in order to increase the slot area, the minimum width of the trapezoidal stator teeth is usually set too small in the prior art. As a result, the magnetic density of the teeth is too saturated, which greatly increases the iron loss of the motor, and also affects the main magnetic flux. For transmission, the increase in motor operating current leads to an increase in copper consumption, which ultimately makes it difficult to increase the efficiency of the motor and meet the requirements for high energy efficiency

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