Stator punching piece, stator and compressor

Abstract

The invention discloses a stator punching piece, a stator and a compressor. The stator punching piece comprises a punching piece body provided with a rotor hole and three mounting holes; a plurality of wire embedding slots are formed in the inner peripheral wall of the rotor hole; the two mounting holes and one mounting hole are formed in the two sides of the rotor hole respectively; and a plane passing through the center of the mounting hole and the center of the rotor hole is a first plane. The punching piece body is formed by two semi-structure elements that are symmetric relative to the first plane; the outer peripheral wall of each semi-structure element is formed by a first straight line segment, a second straight line segment, a notch part, and an end portion connecting segment; the first straight line segments of the two semi-structure elements and the end portion connecting segments are connected; and the second straight line segments are perpendicular to the first straight line segments. The notch parts include first bevel edges, second bevel edges, and connection segments; and the first bevel edges are parallel to the second bevel edges. According to the stator punching piece, materials can be saved and uniform flux density distribution can be guaranteed.

Description

technical field [0001] The invention relates to the technical field of refrigeration, in particular to a stator punch, a stator and a compressor. Background technique [0002] In the prior art, refrigerator compressors mostly adopt a reciprocating structure. Due to the limitation of the internal space structure of the compressor, and in order to save silicon steel sheets, the stator mostly adopts a rectangular structure, in which one set of parallel segments is longer and the other set of parallel segments Shorter, in order to ensure a reasonable magnetic density of the yoke, screw holes are mostly set at the four corners of the punch. [0003] In recent years, with the rise of cost pressure, compressors are increasingly moving towards miniaturization. At the same time, in order to save costs, the installation method of the refrigerator compressor motor has gradually evolved from the traditional four-hole installation to three-hole installation, and the three-hole installati...

AI Technical Summary

Problems solved by technology

[0003] In recent years, with the rise of cost pressure, compressors are increasingly moving towards miniaturization. At the same time, in order to save costs, the installation method of the refrigerator compressor motor has gradually evolved from the traditional four-hole installation to three-hole installation, and the three-hole installation At the same time, in order to save costs, the stator punching sheet is usually not designed with a symmetrical structure (that is, the stator is not a rectangular structure), which makes the design of the stator punching sheet not only take into account the performance, but also consider the material utilization rate when the mold is arranged , adopting the traditional square structure will undoubtedly waste material

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