Air conditioner and compressor
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Solution Overview
Problem
The existing compressors with variable volume cylinders experience abnormal abrasion between the sliding vane and the rotor due to pressure fluctuations, leading to increased power consumption and reduced performance.
Innovation Solution
The compressor incorporates a variable volume control assembly with a pressure regulator and storage cavity, allowing refrigerant to flow between the variable volume control cavity and storage cavity to buffer pressure changes, thereby reducing pressure fluctuations and preventing abnormal abrasion. This assembly includes a control pipe communicating the storage cavity with the variable volume control cavity, ensuring sufficient refrigerant to balance pressure and protect the sliding vane and rotor.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the variable volume cylinder is set to provide larger output, then the compression capacity is improved, but the frictional force between sliding vane and rotor increases causing abnormal abrasion
Solution Approach 1:
A pressure regulator is introduced as an intermediary device between the variable volume control cavity and the compression cavity. The pressure regulator includes a storage cavity that receives refrigerant and controls its discharge to the variable volume control cavity, thereby mediating the pressure transmission and reducing direct pressure fluctuations on the sliding vane and rotor, which reduces abnormal abrasion while maintaining compression capacity.
Solution Approach 2:
The storage cavity in the pressure regulator acts as a buffer that cushions pressure changes before they reach the variable volume control cavity. By storing refrigerant and controlling its discharge, the system prepares for and absorbs pressure fluctuations in advance, preventing direct impact on the sliding vane and rotor, thus reducing wear while maintaining effective compression.
2Reliability
If the contact force between sliding vane and rotor is increased, then the sealing performance is improved, but the power consumption increases and abnormal abrasion occurs
Solution Approach 1:
The pressure regulator serves as an intermediary that decouples the direct relationship between compression pressure and contact force. By controlling refrigerant discharge from the storage cavity to the variable volume control cavity, the system maintains necessary sealing pressure without transmitting excessive force to the sliding vane and rotor, thereby reducing power consumption while preserving sealing performance.
Solution Approach 2:
The system changes the pressure parameter transmission characteristics by introducing the pressure regulator with storage cavity. This modifies how pressure is delivered to the variable volume control cavity, allowing optimized contact force that maintains sealing while reducing excessive force that would increase power consumption and cause abrasion.
3Speed
If the volume of variable volume control cavity is changed rapidly, then the output adjustment responsiveness is improved, but the pressure fluctuation increases causing sliding vane instability
Solution Approach 1:
The storage cavity provides beforehand cushioning for pressure changes by storing refrigerant and controlling its discharge rate. When the variable volume control cavity volume changes rapidly, the storage cavity buffers the pressure fluctuation by regulating refrigerant flow, maintaining pressure stability while allowing rapid output adjustment through the controlled discharge mechanism.
Solution Approach 2:
The pressure regulator controls refrigerant discharge in a regulated, periodic manner from the storage cavity to the variable volume control cavity. This periodic controlled discharge smooths out pressure fluctuations that would occur with rapid volume changes, maintaining stability while enabling responsive output adjustment through the regulated flow mechanism.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution effectively reduces pressure fluctuations in the variable volume control cavity, minimizing abrasion and improving the overall performance of the compressor by ensuring adaptive flow of refrigerant to buffer pressure changes, thus enhancing energy efficiency and reducing wear.
Implementation Method 1
the refrigerant introduced into the variable volume control cavity flows between the variable volume control cavity and the storage cavity along with the change of the volume of the variable volume control cavity
Data Source
Figure 1
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Figure 4
AI summary
The present disclosure relates to an air conditioner and a compressor. The compressor includes: a first cylinder assembly, including a first cylinder body and a first sliding vane, a volume control assembly, including a pressure regulator; wherein the pressure regulator is provided with a storage cavity, and the storage cavity is communicated with the variable volume control cavity; wherein the first sliding vane is configured to slide in a reciprocating manner between the first compression cavity and the variable volume control cavity along the first sliding vane groove, to change the volume of the variable volume control cavity; and the refrigerant introduced into the variable volume control cavity flows between the variable volume control cavity and the storage cavity along with a change of the volume of the variable volume control cavity. In this way, when the volume of the variable volume control cavity is changed, the refrigerant in the variable volume control cavity adaptively flows to the storage cavity, or the refrigerant in the storage cavity is adaptively supplemented into the variable volume control cavity, to buffer the pressure change in the variable volume control cavity, and prevent abnormal abrasion between the sliding vane and the first roller after the sliding vane is subject to greater pressure.