Vehicle AC Dehumidification Layout for Low Resistance Airflow
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Solution Overview
Problem
The integration of a dehumidification device in a vehicle air conditioning system increases the number of components and affects the layout of other systems, and external air with water droplets can deteriorate the dehumidification device's membrane elements.
Innovation Solution
A vehicle air conditioning system with a dehumidification device positioned between the blower and the evaporator, utilizing a branch flow channel for partial air flow dehumidification, and a damper structure to control air volume and path switching, integrating the dehumidification device with the air conditioning system to minimize component count and prevent water damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If an independent dehumidification device is disposed in the vehicle, then the dehumidification function is improved, but the number of components increases and the system configuration becomes complex
Solution Approach 1:
The dehumidification device is integrated into the air conditioning system by positioning it between the blower and the evaporator, merging two separate systems into one unified structure. This reduces the total number of components while maintaining independent dehumidification capability.
Solution Approach 2:
The air conditioning system is designed to serve multiple functions: temperature control through the evaporator and dehumidification through the dehumidification device. The system can selectively activate different pathways based on whether cooling or dehumidification is required.
2Productivity
If air from the air inlet passes through the dehumidification device, then the dehumidification effect is improved, but water droplets in external air can deteriorate the membrane elements
Solution Approach 1:
The system performs preliminary heating of the dehumidification device before air passes through it. This pre-heating creates a protective thermal environment that prevents water droplets from condensing and damaging the membrane elements, while still allowing effective dehumidification to occur.
Solution Approach 2:
The heating element provides beforehand cushioning by maintaining the dehumidification device at a temperature that prevents water droplet accumulation and damage, protecting the membrane elements from deterioration before exposure to harmful moisture.
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 configuration simplifies the system structure, reduces power consumption, and enhances reliability by minimizing ventilation resistance and preventing water damage to the dehumidification device.
Implementation Method 1
The dehumidification device may absorb air in a vehicle for dehumidification to control the humidity in the vehicle
Data Source
AI summary
A vehicle air conditioning system, having a simple structure and preferable reliability, and capable of suppressing increases in energy consumption and cost, is provided. The vehicle air conditioning system includes: an air conditioning unit, configured to adjust a temperature in a vehicle compartment and including a blower and a temperature control module; and a dehumidification device, configured to adjust a humidity in the vehicle compartment, disposed between the blower and an evaporator of the temperature control module, and enabling a part of air conditioning air flowing in from the blower to flow into the dehumidification device.