Under-Seat Electric Component Cooling Using HVAC Duct Suction
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Solution Overview
Problem
In vehicles, heat-generating electric components placed under seats face challenges in cooling efficiency due to the propensity for heat to accumulate in narrow spaces, leading to reduced cooling performance.
Innovation Solution
A structure is implemented where the heat-generating electric component and a duct for air conditioning are positioned under a seat, with the duct's exit located near the component's air outlet holes, enhancing airflow and cooling efficiency by creating negative pressure that draws discharged air back into the duct, thereby increasing the amount of air used for cooling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the heat-generating electric component is arranged under a seat to save space, then the space utilization is improved, but the cooling efficiency deteriorates due to heat accumulation in narrow spaces
Solution Approach 1:
The patent introduces a duct as an intermediary component between the heat-generating electric component and the air conditioning unit. The duct guides and channels the airflow from the air conditioning unit directly to the electric component, mediating the heat transfer process and enabling effective cooling even in the confined space under the seat.
Solution Approach 2:
The patent changes the parameters of the airflow by creating negative pressure in the discharge space and positioning the duct exit near the air outlet holes. This parameter change (negative pressure) enhances the suction effect, increasing the amount of air drawn through the component and improving cooling efficiency without requiring additional space.
2Temperature
If the duct exit is positioned near the air outlet holes to create negative pressure and enhance cooling, then the cooling efficiency is improved, but the device complexity increases
Solution Approach 1:
The patent merges the cooling function with the existing air conditioning system by integrating the duct into the current airflow path. Rather than adding a separate cooling system, the design combines the air conditioning unit's airflow with the cooling requirement of the electric component, reducing overall system complexity.
Solution Approach 2:
The configuration allows the system to self-regulate the airflow through negative pressure generation. The proximity of the duct exit to the air outlet holes creates a natural suction effect that draws air through the component without requiring additional fans or active control mechanisms, enabling self-service cooling.
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 maintains high cooling efficiency for heat-generating electric components even in confined areas like under seats, preventing heat buildup and optimizing airflow to enhance cooling performance.
Implementation Method 1
creating negative pressure that draws discharged air back into the duct
Implementation Method 2
a function of cooling the inside thereof via air cooling... taking ambient air into the power converter to thereby cause the inside thereof and the air to exchange heart with each other
Data Source
AI summary
A structure for arranging a heat-generating electric component in an automobile has a heat-generating electric component, and a duct extending from an air conditioning unit. The heat-generating electric component and the duct are disposed between a seat and a floor surface of the automobile. An air outlet hole is formed in the heat-generating electric component, through which air on an inside of the heat-generating electric component is discharged to cool the inside. An exit of the duct is disposed near the air outlet hole of the heat-generating electric component.