Vehicle HVAC Air Diverter Layout for Multi-Row Air Distribution
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Solution Overview
Problem
Existing HVAC systems for vehicles face challenges in efficiently distributing conditioned air to multiple rows, particularly the second and third rows, and in managing air flow between recirculation and fresh air intake, as well as controlling temperature and direction of air flow within the vehicle compartments.
Innovation Solution
The HVAC system incorporates an air intake housing with separate inlets for recirculation and fresh air, a fan housing with a rotating valve, a heat treatment housing with controllable doors for air direction, and a distribution housing with selectable outlets, along with a flow selector mechanism to manage air flow and temperature distribution to various vehicle compartments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single air inlet is used for HVAC systems, then the device complexity is reduced, but the adaptability for switching between recirculation and fresh air modes is worsened
Solution Approach 1:
The air inlet is divided into two separate inlets: a first air inlet for recirculation air and a second air inlet for fresh air. This segmentation allows the system to independently control and switch between different air sources without requiring complex valve mechanisms, thereby maintaining simplicity while improving adaptability.
Solution Approach 2:
The air intake housing is designed to accommodate multiple air sources (recirculation and fresh air) through dedicated inlets, making the system universally capable of operating in different air intake modes. The housing structure itself serves multiple functions: structural support, air source selection, and flow distribution.
2Adaptability or versatility
If separate inlets for recirculation and fresh air are provided, then the adaptability for air source selection is improved, but the device complexity increases
Solution Approach 1:
The air intake housing combines multiple functions into a single integrated structure: it houses both the first and second air inlets, provides structural support for the filter assembly, and directs airflow to the fan. This merging reduces the need for additional separate components and simplifies the overall device complexity.
Solution Approach 2:
The air intake housing serves multiple purposes simultaneously: it acts as a structural frame, contains the filter assembly, provides separate inlet passages for different air sources, and directs airflow to the fan. This multi-functionality reduces the need for additional components.
3Device complexity
If air flows directly from the air inlet housing to the fan, then the device complexity is reduced, but the air flow control and conditioning capability is worsened
Solution Approach 1:
The air flow path is segmented into distinct functional zones: the air intake housing for air source selection, the filter assembly for air purification, and the fan housing for airflow generation. This segmentation allows each component to be optimized for its specific function while maintaining overall system simplicity.
4Object-affected harmful factors
If a filter assembly is added to the air intake housing, then the air purification capability is improved, but the device complexity increases
Solution Approach 1:
The filter assembly is integrated into the air intake housing as a unified component. The housing provides structural support and mounting for the filter, while the filter becomes an inherent part of the air intake system. This integration eliminates the need for separate filter housing structures and simplifies the overall device complexity.
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 directs and conditions air to multiple rows of a vehicle, allowing for customizable air flow and temperature control, enhancing passenger comfort and efficiency in air distribution.
Implementation Method 1
when the fan is rotating about its rotational axis air is expelled out of the fan radially away from the rotational axis
Implementation Method 2
the scroll transitions from the fan housing to a pathway that leads to an air conditioning housing, the air conditioning housing includes an evaporator
Implementation Method 3
The pathway includes the inlet and transitions to an outlet that is proximate to an evaporator within an air conditioning housing, wherein a cross-sectional area of the pathway increases as the pathway extends from the inlet to the outlet
Implementation Method 4
the air conditioning housing includes an evaporator of a heat pump or refrigeration system associated with a vehicle
Data Source
AI summary
An HVAC system that optimized for minimizing the amount of electrical power used during operation at various levels producing cold air or warm air is provided. The system includes an air inlet, a scroll, an air conditioning module, and an air delivery system for various locations within a vehicle that includes the HVAC system.