Air cylinder, pump body assembly, compressor and air conditioner

Abstract

The invention provides an air cylinder, a pump body assembly, a compressor and an air conditioner. The air cylinder comprises a first end face, wherein an air exhaust opening is formed in the first end face; the air exhaust opening comprises at least two air exhaustion sections; chamfered angles of the all air exhaustion sections are gradually decreased in the air exhaustion direction of the air exhaust opening; when groove bottoms of the air exhaustion sections extend along a straight line, the chamfered angles are included angles which are formed by the straight line on which the groove bottoms are located and the first end face; when the groove bottoms of the air exhaustion sections are planar, the chamfered angles are included angles which are formed by the plane on which the groove bottoms are located and the first end face; and when the groove bottoms of the air exhaustion sections are arc, the chamfered angles are included angles which are formed by a tangent line on which the groove bottoms are located and the first end face. According to the air cylinder, the effective flow area for air exhaustion of the air cylinder is increased while no increment of the clearance volumeof a compressor is controlled, the air exhaustion resistance and over-compression loss of the compressor are reduced, and the working efficiency of the compressor is improved, and thus, the energy efficiency of the compressor is improved.

Description

technical field [0001] The application belongs to the technical field of air conditioning, and in particular relates to a cylinder, a pump body assembly, a compressor and an air conditioner. Background technique [0002] The cylinder is an important core part of the pump body assembly of the rolling rotor compressor. The exhaust port 1 of the existing cylinder is usually designed as a crescent groove exhaust section that opens toward the inner circumferential surface and end surface of the cylinder. Due to the clearance volume of the compressor pump body It needs to be controlled within a small reasonable range. Generally, the cylinder exhaust port 1 is set as small as possible, resulting in a relatively large exhaust flow resistance, and it is easy to cause poor exhaust, resulting in exhaustion of the compressor pump body. Excessive gas resistance or poor exhaust will greatly increase the gas pulsation in the compression chamber, which will increase the energy consumption o...

AI Technical Summary

Problems solved by technology

[0002] The cylinder is an important core part of the pump body assembly of the rolling rotor compressor. The exhaust port 1 of the existing cylinder is usually designed as a crescent groove exhaust section that opens toward the inner circumferential surface and end surface of the cylinder. Due to the clearance volume of the compressor pump body It needs to be controlled within a small reasonable range. Generally, the cylinder exhaust port 1 is set as small as possible, resulting in a relatively large exhaust flow resistance, and it is easy to cause poor exhaust, resulting in exhaustion of the compressor pump body. Excessive gas resistance or poor exhaust will greatly increase the gas pulsation in the compression chamber, which will increase the energy consumption of the compressor and reduce the energy efficiency

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