Modular HVAC Housing with Interchangeable Plenums for Multi-Zone Control
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Solution Overview
Problem
Current HVAC systems for vehicles face challenges in efficiently managing multi-zone temperature control, leading to increased design and development time, manufacturing complexity, and quality defects due to the need for unique air distribution housings and numerous components for different zone configurations.
Innovation Solution
A modular air handling system design that includes a main housing with interchangeable plenums, allowing for configuration changes between single/dual and tri/quad zone settings, enabling independent temperature control of various zones without additional heating or cooling devices, and reducing the number of assembly parts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If unique air distribution housings with different openings are incorporated for different zone configurations, then multi-zone temperature control capability is improved, but device complexity and manufacturing cost increase
Solution Approach 1:
The air distribution housing is segmented into a main housing body and interchangeable plenum components. The plenums are designed as separate, modular units that can be removed and replaced to change zone configurations. This segmentation allows the same main housing to support multiple plenum types (single-zone, dual-zone, tri-zone, quad-zone) without requiring unique housings for each configuration.
Solution Approach 2:
The main housing is designed with universal mounting interfaces and airflow pathways that can accommodate multiple plenum types. The housing structure includes standardized connection points, duct openings, and internal flow channels that work with any plenum configuration, making it multi-functional across different zone requirements.
2Adaptability or versatility
If unique air distribution housings are used for different zone configurations, then adaptability is improved, but manufacturing cost increases
Solution Approach 1:
By segmenting the housing into reusable main body and interchangeable plenums, the manufacturing process can standardize production of the expensive main housing component while keeping plenum production simpler and more flexible. This reduces tooling costs and allows economies of scale on the main housing.
Solution Approach 2:
A single main housing design serves all zone configurations, eliminating the need to manufacture multiple unique housing types. This universality consolidates the manufacturing base, reduces program tooling costs, and simplifies quality control processes.
3Adaptability or versatility
If unique air distribution housings are used for different zone configurations, then multi-zone control capability is improved, but assembly time increases
Solution Approach 1:
The interchangeable plenum design allows assembly teams to quickly swap plenum units rather than assembling entire unique housings for each configuration. The modular interfaces enable rapid connection and disconnection, significantly reducing assembly time when changing between single-zone, dual-zone, tri-zone, or quad-zone configurations.
4Adaptability or versatility
If unique air distribution housings are used for different zone configurations, then multi-zone control capability is improved, but quality defects increase
Solution Approach 1:
Using a single proven main housing design across all configurations reduces variability in manufacturing and assembly. The standardized interfaces and repeated use of the same housing components minimize opportunities for defects compared to producing multiple unique housing variants.
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 modular design minimizes manufacturing costs, assembly time, and complexity while ensuring efficient temperature control across multiple zones, reducing the likelihood of quality defects and allowing for flexible configuration without increasing packaging size.
Implementation Method 1
an evaporator core in communication with the secondary flow path inlet and configured to condition air flowing through the secondary flow path
Implementation Method 2
a heater core disposed at a downstream end of the evaporator core and configured to heat air flowing through the secondary flow path
Implementation Method 3
a mixing section disposed downstream from the temperature control door and configured to receive the cold air flow and the warm air flow
Data Source
AI summary
An air handling system of a vehicle includes a main housing interchangeable between a first configuration and a second configuration. The main housing has a primary portion configured to convey a cold air flow and a warm air flow therethrough. A secondary portion is interchangeable between a first plenum in the first configuration of the main housing and a second plenum in the second configuration of the main housing.