Refrigeration cycle system
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Solution Overview
Problem
Existing refrigeration cycle systems require manual operation of a test switch to inspect the notification unit for refrigerant leakage, which can lead to missed inspections and increased labor in ensuring the system's functionality, especially if not consciously activated by the manager.
Innovation Solution
A refrigeration cycle system that includes an operation signal transmitter, a detection unit, and a notification unit, where the system automatically transmits an operation signal to the refrigeration cycle apparatus, causing the notification unit to perform a test behavior, allowing for daily inspection of the notification unit's functionality without manual intervention, using a remote controller to differentiate between actual refrigerant leakage and test behaviors through varying durations and volumes of sound and light notifications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a test switch is provided for manual inspection of the notification unit, then the notification unit can be inspected, but the system requires conscious manual operation which may be overlooked and increases labor for inspection
Solution Approach 1:
The notification unit performs self-inspection automatically by receiving operation signals from the remote controller during normal system operation. The control unit detects these operation signals and triggers test notifications without requiring manual inspection operations, enabling the system to self-verify its notification functionality continuously during use.
Solution Approach 2:
The system performs inspection actions in advance by continuously monitoring operation signals and executing test notifications proactively before actual refrigerant leakage occurs. This preliminary verification ensures the notification unit is functional and ready for emergency situations without waiting for manual test operations.
2Reliability
If the notification unit emits sound and light continuously for inspection, then the notification functionality can be verified, but it causes user disturbance and confusion with actual leakage alerts
Solution Approach 1:
The notification unit executes test notifications periodically or intermittently based on detected operation signals rather than continuously. This periodic activation verifies functionality while minimizing user disturbance, as the test notifications occur only at specific intervals triggered by remote controller operations rather than constant emission.
Solution Approach 2:
The system applies different notification characteristics for test mode versus actual leakage mode. Test notifications have distinct sound patterns, light patterns, or duration differences compared to actual leakage alerts, allowing users to distinguish between routine inspection and emergency warnings through local quality differences in the notification output.
Data Source
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AI summary
The present disclosure provides a refrigeration cycle system including a notification unit configured to notify refrigerant leakage upon detection of refrigerant leakage and enabling reduction in time and effort for inspection of the notification unit. An air conditioning system (100) includes an air conditioner (1) having a refrigerant circuit, a remote controller (48) configured to transmit an operation signal (C) to the air conditioner, a refrigerant sensor (34) configured detect leakage of a refrigerant, a notification unit (70), and a notification control unit (44b). An alarm device notify leakage of the refrigerant by emitting sound and light in a case where the refrigerant sensor detects leakage of the refrigerant. The notification control unit causes the notification unit to execute test behavior of emitting sound and light in a case where the remote controller transmits the operation signal to the air conditioner.