Vehicle Battery Pack Merging Duct Layout for Cooling and Assembly
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Solution Overview
Problem
Existing vehicle battery packs face challenges in efficiently cooling and assembling electric devices within a limited space, which affects their performance and reliability.
Innovation Solution
A vehicle battery pack design that includes two batteries disposed apart in a horizontal direction, an electric device connected to both batteries, a cooling mechanism with separate intake paths and a merging duct, and a cooling fan to circulate cooling air. The electric device is strategically placed on an inclined portion of the merging duct to enhance cooling and assembly efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the electric device is disposed in the limited space inside the case, then the space utilization is improved, but the cooling performance and assembly performance deteriorate
Solution Approach 1:
The merging duct is designed with an inclined portion that changes the spatial orientation from horizontal to inclined, allowing the electric device to be disposed on the inclined surface. This dimensional change enables the electric device to be positioned in a three-dimensional space that is otherwise unavailable in the limited case volume, achieving both space utilization and cooling performance
2Volume of moving object
If the electric device is disposed in the limited space inside the case, then the space utilization is improved, but the assembly performance deteriorates
Solution Approach 1:
The inclined portion of the merging duct creates an accessible inclined surface that extends toward the opening of the case. This dimensional change in orientation makes the electric device accessible from the outside for assembly and maintenance, while still being positioned within the limited internal space of the case
3Reliability
If the cooling air flows through separate intake paths for each battery, then the cooling efficiency of batteries is improved, but the complexity of the cooling mechanism increases
Solution Approach 1:
The cooling mechanism uses separate intake paths for each battery that merge into a common merging duct. This merging structure allows the cooling air to be distributed to both batteries through shared components, reducing the overall complexity of the cooling mechanism while maintaining the efficiency benefits of separate intake paths
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 design achieves improved cooling and assembly performance of the electric device, ensuring effective heat dissipation and efficient assembly processes within the confined space of the battery pack.
Implementation Method 1
a cooling fan connected to the merging duct and configured to cause the cooling air to flow through the first intake path, the second intake path, and the merging duct
Implementation Method 2
a cooling mechanism configured to cool the first battery and the second battery with cooling air
Data Source
AI summary
A vehicle battery pack includes: a first battery and a second battery disposed apart from each other in a horizontal direction; an electric device electrically connected to the first battery and the second battery; a cooling mechanism configured to cool the first battery and the second battery with cooling air; and a case accommodating the first battery, the second battery, the electric device, and the cooling mechanism, and the cooling mechanism includes a first intake path in which the first battery is disposed and through which the cooling air flows, a second intake path in which the second battery is disposed and through which the cooling air flows, a merging duct as defined herein, and a cooling fan as defined herein, an inclined portion is provided at an upper surface of the merging duct, and the electric device is disposed on the inclined portion.