Air Inlet Pipe Recess Structure for Lower Battery Cooling Pressure Loss
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Solution Overview
Problem
Existing power supply devices for vehicles experience pressure loss due to the fastening of air inlet pipes, which hinders air flow and affects heat dissipation efficiency.
Innovation Solution
A power supply device with a recess structure around the fastening portion of the air inlet pipe, featuring a bottom portion with an acute angle and a sidewall portion that guides air flow, reducing obstruction and pressure loss.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a fastening portion with fixing members is provided on the air inlet pipe to fasten it on the battery pack, then the air inlet pipe can be securely fixed, but the fixing members pass through the internal channel and hinder air flow causing pressure loss
Solution Approach 1:
The air inlet pipe is divided into two separate components: a fixing portion that provides fastening functionality and an air introducing portion that provides air flow functionality. This segmentation allows each component to optimize its specific function without interfering with the other, eliminating the pressure loss caused by fixing members blocking the air channel.
Solution Approach 2:
The fastening function is extracted from the air inlet pipe structure. The fixing portion is designed to be separable from the air introducing portion, allowing the fixing members to be mounted on the fixing portion without passing through the internal air channel, thus removing the source of pressure loss while maintaining securing strength.
2Temperature
If the air inlet pipe is made large to achieve required heat dissipation effect, then cooling performance is improved, but the device size and complexity increase
Solution Approach 1:
The fixing portion is designed to serve multiple functions: it provides structural support for mounting the air inlet pipe, incorporates the fastening mechanism with fixing members, and enables separation from the air introducing portion to prevent flow obstruction. This multi-functionality reduces overall device complexity by consolidating multiple roles into a single component.
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 recess structure minimizes pressure loss and enhances air flow, improving heat dissipation efficiency by directing air away from the fastening portion, thus optimizing the cooling of batteries.
Implementation Method 1
the bottom portion has a surface with an acute angle in a direction away from the air inlet, and the sidewall portion is connected to the bottom portion... the air flows away from the air inlet along the inner part of the recess structure in the internal channel of the air inlet pipe, and is guided by the bottom portion with the surface having an acute angle
Data Source
AI summary
A power supply device includes: a housing; a plurality of batteries stored in the housing; a plate member arranged between the plurality of batteries; an air inlet pipe arranged above the batteries and provided with an air inlet for introducing air from the outside of the housing to guide the air toward the batteries; a fastening portion configured to fasten the air inlet pipe on the plate member; and a recess structure provided around the fastening portion of the air inlet pipe and recessed toward the batteries, wherein the recess structure has a bottom portion and a sidewall portion, the bottom portion has a surface with an acute angle in a direction away from the air inlet, and the sidewall portion is connected to the bottom portion.