Ventilation system, integrated air conditioning system and control method thereof
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Solution Overview
Problem
Conventional ventilation devices struggle with incomplete dehumidification and temperature control of indoor air, relying solely on total heat exchange between outdoor and indoor air, which hampers maintaining a fresh indoor environment.
Innovation Solution
An integrated air conditioning system with a ventilation device and an indoor unit, equipped with temperature and humidity sensors, heat exchangers, and a controller, that adjusts temperature and humidity by coordinated operation with an outdoor unit to enhance cooling and dehumidification efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If total heat exchange between outdoor air and indoor air is used for temperature and humidity control, then the system structure is simple, but the dehumidification is incomplete and it is difficult to maintain fresh indoor conditions
Solution Approach 1:
The patent combines the ventilation device with the air conditioner indoor unit to form an integrated system. The ventilation device includes a heat exchanger for heat exchange between outdoor and indoor air, while the integrated indoor unit adds cooling and dehumidification capabilities. This merging allows the system to maintain simple structure while achieving precise temperature and humidity control through coordinated operation of the ventilation and air conditioning components.
2Manufacturing precision
If a separate ventilation device is installed to improve indoor air quality, then the dehumidification and temperature control improve, but the device complexity and production cost increase
Solution Approach 1:
The patent integrates the ventilation device with the existing air conditioner indoor unit, combining air supply, cooling, and dehumidification functions into a single system. This reduces device complexity compared to installing completely separate ventilation and air conditioning systems, while still achieving improved temperature and humidity control through the coordinated operation of the heat exchanger and refrigerant cycle.
Solution Approach 2:
The integrated indoor unit serves multiple functions: it acts as both a ventilation device with heat exchanger for air-to-air heat exchange and an air conditioner for cooling and dehumidification. This multi-functionality allows a single device to replace what would traditionally require separate ventilation and air conditioning equipment, reducing overall system complexity.
3Ease of operation
If the ventilation device operates independently without coordination with air conditioner, then the operation is simple, but the cooling and dehumidification efficiency is reduced
Solution Approach 1:
The patent implements a controller that receives signals from temperature and humidity sensors and coordinates the operation of the ventilation device and air conditioner based on real-time indoor environmental conditions. The controller adjusts the operation modes and parameters of both devices to optimize cooling and dehumidification efficiency while maintaining simple user operation through automatic control.
4Ease of manufacture
If conventional outdoor unit is utilized for the integrated system, then the production cost is reduced, but the adaptability to different ventilation requirements is limited
Solution Approach 1:
The patent employs a controller that dynamically adjusts the operation modes and parameters of the ventilation device and air conditioner based on real-time temperature and humidity sensor readings. This dynamic control allows the system to adapt to different ventilation and environmental control requirements while using the conventional outdoor unit, achieving flexibility through intelligent control rather than hardware variations.
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
The system effectively maintains indoor temperature and humidity in a fresh state, improves energy efficiency, and reduces production costs by utilizing a conventional outdoor unit, while allowing for flexible operation modes based on indoor conditions.
Implementation Method 1
a heat exchanger installed on the inlet flow path
Implementation Method 2
an indoor unit including a second temperature sensor, a second humidity sensor, and an indoor heat exchanger, the indoor unit configured to discharge heat-exchanged air into an indoor space
Data Source
AI summary
An integrated air conditioning system includes a ventilation device comprising a first temperature sensor, a first humidity sensor, and a heat exchanger installed on the inlet flow path. An indoor unit configured to discharge heat-exchanged air into an indoor space. An outdoor unit configured to supply a refrigerant to the ventilation device and the indoor unit. A controller connected to the ventilation device, the indoor unit, and the outdoor unit. The controller configured to obtain an indoor temperature from the first temperature or the second temperature sensor. The controller configured to obtain indoor humidity from the first humidity sensor or the second humidity sensor and configured to control at least one of the ventilation device and the indoor unit based on the indoor temperature and the indoor humidity.