Air conditioner and control method therefor
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Solution Overview
Problem
Existing air conditioners immediately stop operating when detecting abnormal operating parameters, which negatively impacts user experience, as parameters often return to normal with continued operation, and existing control methods do not account for ambient temperature fluctuations.
Innovation Solution
A control method for air conditioners that acquires outdoor ambient temperature, determines preset times based on this temperature, and selectively stops or continues operation based on compressor discharge temperature and pressure after these times have elapsed, allowing the air conditioner to operate normally for a period before assessing parameters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the air conditioner immediately stops operating when detecting abnormal operating parameters, then the protection of the air conditioner is improved, but the user experience deteriorates
Solution Approach 1:
The control method applies preliminary action by allowing the air conditioner to continue operating for a predetermined time period after detecting abnormal parameters, rather than immediately stopping. This preliminary continuation of operation gives the system a chance to self-correct, and only if the abnormality persists does the shutdown occur, thus balancing protection with user experience
Solution Approach 2:
The control method implements dynamics by making the shutdown decision conditional and time-dependent rather than static and immediate. The system dynamically adjusts its response based on whether the abnormal parameters persist beyond the predetermined time period, allowing flexibility in when protection is activated
2Productivity
If the air conditioner continues operating when ambient temperature is extreme, then heat exchange function is maintained, but operating parameters may exceed preset ranges causing unnecessary shutdowns
Solution Approach 1:
The control method uses preliminary action by providing a grace period during which the air conditioner continues operating despite abnormal parameters that may result from extreme ambient temperatures. This preliminary continuation allows the system to maintain heat exchange function while giving parameters time to normalize, preventing premature shutdowns
3Reliability
If the air conditioner stops operating immediately upon detecting abnormal parameters, then safety is improved, but operational time is reduced
Solution Approach 1:
The control method applies preliminary action by implementing a predetermined time delay before executing the shutdown command. During this preliminary period, the air conditioner continues operating, which extends the operational time and allows for potential self-correction of temporary abnormalities while still maintaining safety through eventual shutdown if needed
Data Source
AI summary
An air conditioner and control method therefor to solve the problem that an existing air conditioner stops operation upon detection of an operation parameter abnormality situation, causing the user experience to be significantly influenced. For this reason, the air conditioner includes a compressor. The control method includes: obtaining an outdoor ambient temperature; determining a first preset time period according to the outdoor ambient temperature; obtaining operation parameters of the compressor after the first preset time period; and selectively stopping operation of the air conditioner according to the operation parameters of the compressor, so that the air conditioner can be automatically repaired within the first preset time period. If the air conditioner can be automatically repaired within the first preset time period, the air conditioner does not need to stop operation, so as to guarantee a continuous heat exchange capability of the air conditioner and not to cause an operation failure.