Rotary compressor assembly and air conditioner having same

Abstract

The present invention provides a rotary compressor assembly and an air conditioner having the same. Wherein, the rotary compressor assembly includes a compressor body, and the compressor body includes: a first compression cylinder, the first compression chamber has a first suction port and a first exhaust port; a second compression cylinder, the second compression chamber has a second The suction port and the second exhaust port, the second suction port is connected with the first exhaust port, the first compression chamber also has a first pressure relief port, and the first pressure relief port is in communication with the first suction port. The connected state and the disconnected state of phase disconnection, the first pressure relief port is located behind the first suction port and in front of the first exhaust port, and / or the second compression chamber also has a second pressure relief port, The second pressure relief port and the second suction port have a connected state of communication and a disconnected state of being disconnected, and the second pressure relief port is located behind the second intake port and in front of the second exhaust port. The rotary compressor assembly of the present invention is more adaptable.

Description

technical field [0001] The invention relates to the technical field of gas compression devices, in particular to a rotary compressor assembly and an air conditioner with the same. Background technique [0002] With the increasing requirements of the national energy efficiency level, the existing two-stage enthalpy-increasing compressor solves the problem of insufficient low-temperature heating capacity by supplementing air to increase enthalpy, so that the air-conditioning heating capacity can be satisfied, but the two-stage enthalpy-increasing compressor has high pressure Stage and low-pressure stage are compressed by two cylinders. For heavy-duty working conditions (nominal cooling, nominal heating, national standard working conditions, low-temperature working conditions, etc.), the pressure ratio is large, and the use of two-stage compression can effectively distribute the pressure ratio, so that the cylinders of the high and low stages are evenly distributed. It can run...

AI Technical Summary

Problems solved by technology

For heavy-duty working conditions (nominal cooling, nominal heating, national standard working conditions, low-temperature working conditions, etc.), the pressure ratio is large, and the use of two-stage compression can effectively distribute the pressure ratio, so that the cylinders of the high and low stages are evenly distributed. It can run reasonably, but for the light-load working conditions of the air conditioning system (such as IPLV working conditions, intermediate working conditions, etc.), the pressure ratio is relatively small, and if the two-stage compression pressure ratio distribution is used, it will not be very reasonable, resulting in high pressure The pressure ratio distributed by the high-stage or low-pressure stage cylinder is very small. At this time, the cylinder basically becomes a resistance component with an exhaust valve plate, which reduces the energy efficiency of the compressor.

The adaptability of the existing two-stage enthalpy increasing compressor is relatively low

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