Compressor shell and compressor having same

Abstract

The invention discloses a compressor shell. The compressor shell comprises a shell, an upper cover arranged at the upper end of the shell, and a lower cover arranged at the lower end of the shell, wherein the shell comprises a first section and a second section connected with each other; the first section is a circular straight cylinder, and is suitable for fixedly connecting with a stator of a compressor; the cross section of the second section is noncircular; the intersecting point between the axis of the first section and the cross section of the second section is a first intersecting point; the distance from the inner edge of the cross section of the second section to the first intersecting point is smaller than or equal to the radius of the outer edge of the cross section of the first section; and the assembly of a cylinder of the compressor is not influenced by the structure of the second section. The compressor shell can reduce the capacity of an oil pool of the compressor, reduces the dissolved amount of refrigerant dissolved in frozen oil of the oil pool, and improves the circulating rate of the refrigerant. The invention further proposes a compressor.

Description

technical field [0001] The invention relates to the technical field of compressors, in particular to a compressor shell and a compressor with the same. Background technique [0002] R290 refrigerant and refrigeration oil have good compatibility. The more oil the compressor fills, the more R290 refrigerant will dissolve in refrigeration oil, and the part of R290 refrigerant that dissolves in refrigeration oil will not participate in the cycle. Therefore, the more R290 refrigerant dissolved in refrigeration oil, the less refrigerant participates in circulation and heat exchange. The R290 refrigerant is a flammable and explosive refrigerant, so it requires a limited amount of filling. [0003] Existing compressor housings are round and straight, with equal diameters up and down. The casing and the stator of the compressor have an interference fit, and there is a certain gap between the casing and the outer circle of the upper flange, and are welded to the upper flange through...

AI Technical Summary

Problems solved by technology

However, the cylinder of the pump body has a special-shaped structure (such as an axe shape), the difference between the cross-sectional area of ​​the cylinder of the pump body and the cross-sectional area of ​​the casing is large, and the volume of the oil pool is large. Therefore, it is necessary to pour the refrigerated oil in the oil pool to the preset height. The amount of refrigerant oil injected is relatively large, which will reduce the amount of R290 refrigerant participating in the cycle

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