Compressor overload-protection control method and apparatus
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Solution Overview
Problem
Dehumidifiers and air conditioners often trigger false fluorine shortage alarms due to confusion between over-load protection and fluorine shortage protection, leading to unnecessary alarms when the compressor is under over-load protection.
Innovation Solution
A compressor over-load protection control method and apparatus that detects the state of the compressor, determines if it is under over-load protection, and shields fluorine shortage protection accordingly by monitoring tube temperatures and environment temperatures within specific time periods to differentiate between over-load and fluorine shortage conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the main controller continuously monitors compressor state for fluorine shortage protection, then fluorine shortage detection capability is improved, but false alarms increase due to over-load protection confusion
Solution Approach 1:
The patent changes the monitoring parameter from solely relying on compressor power switch state to including evaporator tube temperature. By measuring temperature changes over time and comparing them against expected patterns, the system can distinguish between normal over-load conditions and actual fluorine shortages, thereby improving detection precision while eliminating false alarms.
Solution Approach 2:
The system performs preliminary action by pre-establishing temperature monitoring and analysis mechanisms that are ready to differentiate between over-load and fluorine shortage conditions before false alarms can occur. The continuous temperature tracking and pattern recognition are prepared in advance, enabling immediate and accurate identification of the actual system state when protection conditions arise.
Data Source
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AI summary
The invention discloses a compressor over-load protection control method. The method includes that: the state of a compressor is detected (S101); it is judged whether the compressor is under over-load protection (S102); and if the compressor is under the over-load protection, fluorine shortage protection is shielded (S103). A compressor over-load protection control apparatus includes: a detection unit (10), configured to detect the state of a compressor; a judgement unit (20), configured to judge whether the compressor is under over-load protection; and a shielding unit (30), configured to shield fluorine shortage protection if the compressor is under the over-load protection. By means of the method and apparatus, the problem in the relevant art that a fluorine shortage false alarm is easily triggered is solved, thereby achieving the effect of preventing the fluorine shortage false alarm when the compressor is under the over-load protection.