Compressor Mode Switching for Low-Voltage and High-Heat Cooling
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Solution Overview
Problem
Compressors in air-conditioners face inefficiencies and reliability issues due to voltage fluctuations, high ambient temperatures, and excessive cooling operations, leading to increased power consumption and noise, especially in tropical regions.
Innovation Solution
A compressor system with a power mode and a saving mode, controlled by detection units for application voltage and temperature, allowing the compressor to operate continuously and efficiently by switching between modes based on pre-set voltage and temperature conditions, reducing power consumption and noise.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the compressor is repeatedly turned on and off due to low voltage or high ambient temperature, then the compressor is protected from damage, but power consumption increases and reliability is degraded
Solution Approach 1:
The compressor capacity is dynamically adjusted by mechanically controlling the vane to idly rotate in at least one compression space based on detected voltage and temperature conditions. This dynamic capacity adjustment allows the compressor to operate continuously without repeated on-off cycling, thereby improving reliability while optimizing power consumption according to environmental conditions.
Solution Approach 2:
The system changes the operational parameters of the compressor by varying the number of active compression spaces from one to three based on detected conditions. This parameter change enables the compressor to adapt to low voltage and high temperature environments by reducing compression load, preventing overheating and excessive power consumption while maintaining continuous operation.
2Reliability
If the compressor is repeatedly turned on and off due to high ambient temperature, then the compressor is protected from overheating, but cooling operation is degraded and reliability is reduced
Solution Approach 1:
The compressor capacity is dynamically adjusted by mechanically controlling the vane to idly rotate in at least one compression space based on detected voltage and temperature conditions. This dynamic capacity adjustment allows the compressor to operate continuously without repeated on-off cycling, thereby improving reliability while optimizing power consumption according to environmental conditions.
Solution Approach 2:
The compressor is designed to operate continuously without interruption by adjusting its capacity rather than shutting down. The useful action of refrigerant compression is maintained continuously with varying intensity (one to three active compression spaces), ensuring uninterrupted cooling operation while protecting against overheating through capacity reduction.
3Productivity
If the compressor operates continuously in power mode during high ambient temperature, then cooling capacity is maintained, but excessive cooling is performed and noise increases
Solution Approach 1:
The system changes the operational parameters of the compressor by varying the number of active compression spaces from one to three based on detected conditions. This parameter change enables the compressor to adapt to low voltage and high temperature environments by reducing compression load, preventing overheating and excessive power consumption.
Solution Approach 2:
The control unit continuously detects voltage and temperature conditions and adjusts the compressor capacity accordingly. This feedback mechanism prevents excessive cooling by reducing the number of active compression spaces when ambient temperature is high, thereby also reducing noise generation while maintaining appropriate cooling capacity.
Data Source
AI summary
A compressor and an air-conditioner having a compressor are provided. The air-conditioner may be operated in a pre-set operation mode according to a detected application voltage or in a pre-set operation mode according to a pre-set time domain. A compressor temperature or an ambient temperature may be detected to operate the air-conditioner in the pre-set operation mode according to the detected application voltage or in the pre-set operation mode according to the pre-set time domain to continuously operate the compressor.