Expansion Tank Drying Insert for Low-Cost Coolant Air Filtration
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Solution Overview
Problem
Existing drying devices for battery cooling systems are expensive to manufacture due to the use of separate activated carbon filters and dryer cartridges.
Innovation Solution
A cost-effective drying device is constructed with an air-permeable bag-like housing containing a drying agent or a dimensionally stable drying body, which can be easily inserted into the expansion tank's receptacle, and a double-shell tank housing design with integrated valves for air exchange.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate activated carbon filters and dryer cartridges are used, then moisture and pollutant filtration is effective, but manufacturing cost increases
Solution Approach 1:
The patent combines the activated carbon filter and dryer cartridge into a single integrated drying device. The drying device includes a housing with both a carbon filter section and a drying agent section, eliminating the need for separate components. This merging reduces manufacturing cost and assembly complexity while maintaining the filtration and drying functions.
Solution Approach 2:
The drying device serves multiple functions within a single component: it filters pollutants through the carbon filter section and removes moisture through the drying agent section. This multi-functionality replaces what previously required separate activated carbon filters and dryer cartridges, reducing overall system complexity and manufacturing cost.
2Reliability
If separate dryer cartridges are used, then moisture absorption is effective, but device complexity and assembly complexity increase
Solution Approach 1:
The drying device integrates the drying agent and carbon filter into a single housing, reducing the number of separate components that need to be assembled. The housing contains both functional sections, simplifying installation and reducing assembly complexity while maintaining effective moisture absorption.
3Stability of the object's composition
If rigid housings are used for drying agents, then structural stability is good, but manufacturing tolerances cause bypass flows
Solution Approach 1:
The patent uses a flexible membrane or foil to enclose the drying agent instead of a rigid housing. This flexible enclosure adapts to manufacturing tolerances and prevents bypass flows by conforming to the housing cavity, while still providing structural stability and containing the drying agent effectively.
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 solution provides a cost-effective and easy-to-install drying device that effectively prevents moisture and pollutant ingress, reducing manufacturing costs and assembly complexity while ensuring reliable operation.
Implementation Method 1
a drying agent, through which the fresh air drawn in from the environment flowed during the intake process, absorbing moisture and drying the fresh air drawn in
Data Source
AI summary
A drying device for an expansion tank in a battery cooling system can be implemented in various configurations. In some configurations, the drying device includes an air-permeable, bag-like housing containing a drying agent. In another configurations, the drying device includes a dimensionally stable drying body formed from a sintered, extruded, or sprayed drying agent.