A restrictor, compressor and air conditioner

Abstract

The invention discloses a flow restrictor, a compressor and an air conditioner, wherein the flow restrictor comprises a seat body and a sliding current limiting assembly; an oil inlet channel is arranged in the center of the inner cavity of the seat body, and the oil inlet channel penetrates in the axial direction The seat body is arranged; the lower end of the crankshaft of the compressor is connected with the top of the seat body, and the central oil passage of the crankshaft is communicated with the oil inlet passage; the sliding flow restricting assembly includes two sliding flow limiting pieces, the two sliding flow limiting pieces The two sliding flow restrictors are arranged opposite to each other in the inner cavity of the base, and the two sliding flow restrictors are arranged to overlap each other; elastic elements are arranged between the two sliding flow restricting pieces and the inner cavity wall of the base, and both sliding flow restricting pieces are provided with elastic elements. Transition hole. The current limiter of the invention can solve the oil supply control of the compressor at high frequency and low frequency at the same time, and has good adaptability.

Description

technical field [0001] The invention relates to the technical field of compressor equipment, in particular to a flow restrictor, a compressor and an air conditioner. Background technique [0002] At present, room air conditioners generally use vertical rolling rotor compressors, and the mechanical efficiency loss accounts for about 20% of the power loss. A good lubrication system is an important measure to reduce the mechanical loss of the compressor and reduce the wear of parts. Vertical rolling rotor compressors generally use a differential pressure oil supply structure. Common practices include opening oil holes in the center of the crankshaft and adding structures such as oil guide plates and flow restrictors. However, the current compressor lubrication system is designed according to the rated frequency, which causes the compressor The problem of insufficient fuel supply at low frequencies and increased fuel supply at high frequencies, resulting in adverse effects such ...

AI Technical Summary

Problems solved by technology

However, in the patent application for this invention, the oil supply of the compressor in the low-frequency state is not controlled, which may easily lead to insufficient oil supply when the compressor is running at low frequency, which will affect the lubrication effect of the compressor parts; in addition, Opening holes on the crankshaft will reduce the strength of the crankshaft, and the centrifugal inertial force of the single eccentric block is unbalanced, which is prone to vibration and noise

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