Rotary compressor and air conditioning system with same

Abstract

The invention discloses a rotary compressor and an air conditioning system with the same. The rotary compressor comprises a case, a compressing mechanism and a motor assembly. The compressing mechanism is arranged in the case and comprises a single-stage compressing air cylinder and a two-stage compressing air cylinder; the single-stage compressing air cylinder is provided with a single-stage compressing cavity, a single-stage air suction opening and a single-stage air exhaust opening, and the two-stage compressing air cylinder comprises a first-stage compressing air cylinder body and a second-stage compressing air cylinder body; the first-stage compressing air cylinder body is provided with a first-stage compressing cavity and a first-stage air suction opening, and the second-stage compressing air cylinder body is provided with a second-stage compressing cavity and a second-stage air suction opening; the compressing mechanism is provided with a mixing cavity and a first air injection flow path, wherein the mixing cavity communicates with the first-stage compressing cavity and the second-stage compressing cavity, and the first air injection flow path communicates with the mixing cavity; the first-stage compressing air cylinder body and the second-stage compressing air cylinder body can be switched between a cylinder-stopping operation state and a cylinder-stopping unlocking operation state correspondingly; and the motor assembly is arranged in the case. According to the rotary compressor, capability and efficacy can be combined simultaneously, and working performance is promoted.

Description

technical field [0001] The present invention relates to the technical field of air conditioning, and more specifically, relates to a rotary compressor and an air conditioning system having the same. Background technique [0002] As the ambient temperature drops, the specific volume of the refrigerant increases, and the unit suction capacity of the rolling rotor compressor decreases, resulting in a significant drop in the heating capacity of the compressor. The lower the temperature, the greater the heat demand of the room, and the two-stage compressor in the related art cannot fully meet the heat demand. [0003] In some occasions, such as a one-to-many multi-connection system (one external unit and multiple indoor units), the system load changes with the opening and closing of the internal unit. At full load, it is hoped that the compressor can meet the requirements of large capacity. , and at part load, it is hoped that the compressor can run efficiently. Conventional co...

AI Technical Summary

Problems solved by technology

Conventional compressors have fixed capacity, even with up-conversion technology, it is difficult to meet these two requirements at the same time

[0004] At present, ordinary refrigeration and heating cycle devices are prone to excess cooling capacity under small load conditions, such as intermediate cooling conditions, resulting in energy waste. At the same time, under heavy load conditions, such as ultra-low temperature heating, it is prone to insufficient heating capacity. , and the efficiency is very low

Moreover, when the user requires the system to achieve rapid cooling and heating, it is impossible to quickly increase the refrigerant flow

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