Air conditioner and control apparatus
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Solution Overview
Problem
Existing air conditioning technologies face challenges in efficiently controlling the operation of air conditioners, particularly in managing the wind speed of indoor fans and the operation of electric auxiliary heating, which can lead to inefficiencies and potential damage to components.
Innovation Solution
The air conditioner system includes a temperature control assembly, an outdoor assembly, a signal control assembly, and an indoor assembly, which work together to control the operation frequency of the compressor, the flow direction of the refrigerant, and the wind speed of the indoor fan, ensuring optimal operation modes, including electric auxiliary heating, to prevent excessive temperatures and maintain efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the indoor fan wind speed is increased to improve heating efficiency, then the heating performance is improved, but the risk of excessive temperature and component damage increases
Solution Approach 1:
The control apparatus monitors the operating state of the indoor fan and electric auxiliary heating in real-time, and adjusts the wind speed accordingly. When electric auxiliary heating is activated, the system automatically increases the indoor fan wind speed to a predetermined higher level to prevent excessive temperature buildup, creating a closed-loop feedback control mechanism that balances heating efficiency with temperature safety
Solution Approach 2:
The indoor fan wind speed is made dynamic rather than fixed, automatically adjusting between different speed levels based on the operating mode. The system switches to a higher wind speed level when electric auxiliary heating is enabled, and returns to normal operating wind speed when heating is not needed, allowing the system to adapt its performance characteristics to current operational requirements
2Temperature
If the electric auxiliary heating is activated to improve heating capacity, then the heating performance is improved, but the energy consumption increases
Solution Approach 1:
The control apparatus automatically determines when electric auxiliary heating should be activated based on ambient temperature and heating demand, without requiring manual user intervention. The system self-adjusts by comparing current conditions against predetermined thresholds and automatically enables or disables the auxiliary heating function, optimizing energy usage based on actual environmental conditions
Solution Approach 2:
The system changes the operational parameters of the indoor fan based on the heating mode. When electric auxiliary heating is activated, the indoor fan wind speed is automatically increased to a higher level, which helps dissipate heat more effectively and prevents excessive temperature rise, thereby allowing the system to run auxiliary heating at higher capacities without proportionally increasing energy waste
3Device complexity
If the control system is simplified to reduce device complexity, then the ease of manufacture is improved, but the control precision over wind speed and heating operation deteriorates
Solution Approach 1:
The control system is segmented into distinct functional modules: a detection unit that monitors operating conditions, a determination unit that decides when auxiliary heating should be activated, and a control unit that executes specific control actions. This modular segmentation allows each component to perform a specific function with high precision while keeping the overall system architecture simple and manageable
Solution Approach 2:
The control apparatus automatically determines and executes control actions without requiring complex external control systems or user intervention. The system self-monitors the operating state of the indoor fan and electric auxiliary heating, automatically activates auxiliary heating when needed, and self-adjusts the indoor fan wind speed accordingly, thereby achieving precise control through autonomous operation rather than complex external control mechanisms
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution enables precise control over the air conditioner's operation, ensuring efficient heating and cooling performance while preventing damage to components by maintaining appropriate wind speeds and managing electric auxiliary heating effectively.
Implementation Method 1
The indoor heat exchanger is configured to exchange heat between indoor air and a refrigerant flowing in the indoor heat exchanger
Implementation Method 2
The outdoor heat exchanger is configured to exchange heat between outdoor air and a refrigerant flowing in the outdoor heat exchanger
Implementation Method 3
The expansion valve is configured to adjust a pressure of a refrigerant flowing through the outdoor heat exchanger and the indoor heat exchanger
Implementation Method 4
The indoor fan is configured to generate an air flow of the indoor air to promote heat exchange between the refrigerant flowing in the indoor heat exchanger and the indoor air
Implementation Method 5
The compressor is configured to compress the refrigerant flowing through the outdoor heat exchanger and the indoor heat exchanger
Implementation Method 6
The four-way valve is configured to switch flowing directions of a refrigerant in the refrigerant loop
Data Source
AI summary
An air conditioner includes: an indoor heat exchanger, an outdoor heat exchanger, an expansion valve, an indoor fan, a compressor, a four-way valve, a temperature control assembly, an outdoor assembly, a signal control assembly, and an indoor assembly. The indoor heat exchanger is configured to exchange heat between indoor air and a refrigerant flowing in the indoor heat exchanger. The outdoor heat exchanger is configured to exchange heat between outdoor air and a refrigerant flowing in the outdoor heat exchanger. The expansion valve is connected between the outdoor heat exchanger and the indoor heat exchanger, and the expansion valve is configured to adjust a pressure of a refrigerant flowing through the outdoor heat exchanger and the indoor heat exchanger, so that a flow rate of the refrigerant flowing through the outdoor heat exchanger and the indoor heat exchanger is adjusted.