Multi-Split Air Conditioner Mode Switching for Balanced Room Heating
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Solution Overview
Problem
Multi-split air conditioners continue to heat rooms that have reached the set temperature, causing them to become overly hot, while other rooms remain unheated, leading to unreasonable heating distribution.
Innovation Solution
The system determines a target room with a temperature greater than the set temperature and switches its operation mode from heating to cooling, adjusting the refrigeration valves accordingly to prevent overheating and ensure all rooms reach the desired temperature.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the multi-split air conditioner continues to heat all rooms until the set temperature is reached, then the heating coverage is improved, but the room temperature becomes excessively high and energy is wasted
Solution Approach 1:
The patent applies local quality by enabling different indoor units to operate in different modes (heating or cooling) based on their respective room conditions. The control method determines which rooms have reached the set temperature and switches those specific indoor units to cooling mode, while other indoor units continue heating. This localized differentiation resolves the contradiction by maintaining appropriate temperatures in each room rather than uniformly heating all rooms.
Solution Approach 2:
The patent applies inversion by switching the operation mode from heating to cooling for indoor units in rooms that have reached the set temperature. Instead of continuing to heat, the system inverts the operation to cooling mode, using the indoor unit to cool the room and prevent excessive temperature rise. This inverted approach resolves the contradiction between ensuring heating coverage and preventing excessive temperature.
2Productivity
If the multi-split air conditioner heats all rooms simultaneously, then the heating efficiency is improved, but the temperature distribution becomes unreasonable
Solution Approach 1:
The patent applies dynamics by making the operation mode of each indoor unit dynamic rather than static. The control method continuously monitors room temperatures and dynamically adjusts the operation mode of each indoor unit based on real-time conditions. Indoor units in rooms that have reached the set temperature are switched to cooling mode, while others continue heating. This dynamic adjustment resolves the contradiction between heating efficiency and temperature distribution precision.
Solution Approach 2:
The patent applies feedback by implementing a control method that continuously monitors the temperature in each room and uses this information to adjust the operation mode of corresponding indoor units. The system receives temperature feedback from each room, determines whether the set temperature has been reached, and accordingly switches indoor units between heating and cooling modes. This feedback mechanism resolves the contradiction by ensuring accurate temperature distribution while maintaining heating efficiency.
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 effectively reduces the temperature of overly heated rooms and ensures reasonable heating distribution across all rooms, preventing high temperatures and ensuring comfort.
Implementation Method 1
controlling a refrigeration valve of the target indoor unit to open and refrigeration valves of other indoor units to close; controlling the multi-split air conditioner to start the cooling mode to cool the room for cooling
Data Source
AI summary
A control method includes, after a multi-split air conditioner starts to operate in a heating mode, determining a target room from a plurality of rooms for which the multi-split air conditioner provides air conditioning, obtaining an indoor temperature of the target room, determining whether the indoor temperature of the target room is greater than a target temperature corresponding to the target room, and, in response to a determination that the indoor temperature of the target room is greater than the target temperature, controlling the multi-split air conditioner to switch an operation mode of a target indoor unit corresponding to the target room from the heating mode to a cooling mode.