Compressor Overload Logic to Prevent Fluorine Shortage False Alarms
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Solution Overview
Problem
Dehumidifiers and air conditioners often mistakenly trigger fluorine shortage alarms when under over-load protection, leading to false alarms due to the inability to differentiate between over-load and fluorine shortage conditions.
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 when necessary, using temperature differences and time periods to accurately distinguish between over-load and fluorine shortage scenarios.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If over-load protection function is implemented using over-load protector, then compressor safety is improved, but fluorine shortage false alarm is triggered
Solution Approach 1:
The alarm system is segmented into distinct detection paths: one for over-load protection (using over-load protector) and another for fluorine shortage detection (using temperature sensors). By separating the detection functions and adding identification logic, the system can distinguish between over-load conditions and actual fluorine shortage conditions, preventing false alarms while maintaining both protection functions.
Solution Approach 2:
Temperature sensors and control logic serve as intermediaries between the compressor operation and alarm generation. The control logic analyzes temperature data patterns to determine whether an alarm condition represents over-load protection activation or actual fluorine shortage, acting as a mediator that prevents false alarm transmission.
2Reliability
If compressor is electrified during over-load protection, then protection function works, but fluorine shortage detection becomes unreliable
Solution Approach 1:
The system dynamically adjusts its interpretation of temperature data based on the operational state of the compressor. When the compressor is electrified during over-load protection, the control logic recognizes this dynamic state and adjusts its alarm determination accordingly, preventing false fluorine shortage alarms while maintaining accurate temperature-based protection functionality.
Solution Approach 2:
The system changes the interpretation parameters for temperature data based on compressor operational state. Different temperature thresholds and evaluation criteria are applied depending on whether the compressor is in normal operation or over-load protection mode, allowing accurate detection in both states without cross-interference.
Data Source
AI summary
Provided is 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 when 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 when the compressor is under the over-load protection. Through 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.