Battery Pack Protrusions for Heat Carrier Turbulence
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing battery packs, particularly those for hybrid vehicles and electric vehicles, face challenges in efficiently dissipating heat generated during charging and discharging, leading to inadequate cooling efficiency despite existing solutions like ribs and protrusions on surfaces and partition walls.
Innovation Solution
A battery pack design featuring protrusions arranged within the heat carrier flow path between adjacent modules, with specific configurations such as longitudinal orientations and inclinations relative to the flow direction, to enhance heat transfer efficiency and turbulence, thereby improving temperature regulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If ribs are provided on the surfaces of battery cases to form cooling air channels, then heat dissipation efficiency is improved, but the air flow becomes monotonic and insufficient cooling effect is obtained
Solution Approach 1:
The invention applies local quality by providing protrusions at specific locations on the partition wall surfaces facing the cooling space. These protrusions are not uniformly distributed but placed strategically to create localized flow disturbance zones that enhance overall heat dissipation efficiency while maintaining adequate cooling effect.
Solution Approach 2:
The invention utilizes mechanical vibration principles by creating flow disturbance through protrusions that generate turbulence in the cooling air flow. This turbulence acts as a form of mechanical disturbance that enhances heat transfer between the battery modules and cooling air, improving heat dissipation efficiency.
2Productivity
If protrusions are provided on partition wall surfaces to disturb air flow, then cooling effect is improved to some degree, but pressure loss increases and heat dissipation efficiency is insufficient for large capacity packs
Solution Approach 1:
The protrusions are provided locally on specific surfaces of the partition wall rather than uniformly across all surfaces. This localized approach creates sufficient flow disturbance to improve cooling effect while minimizing the overall pressure loss that would result from extensive protrusion coverage.
Solution Approach 2:
The invention applies partial action by providing protrusions on only certain surfaces of the partition wall that face the cooling space, rather than on all surfaces. This partial coverage is sufficient to generate the needed flow disturbance and improve cooling effect without excessively increasing pressure loss.
3Temperature
If multiple protrusions are arranged on opposing surfaces of the partition wall, then heat transfer efficiency is enhanced, but device complexity increases
Solution Approach 1:
The invention segments the heat dissipation function by providing multiple protrusions on opposing surfaces of the partition wall. Each protrusion acts as an independent flow disturbance element, and their combined effect enhances heat transfer efficiency without requiring a completely redesigned complex structure.
Solution Approach 2:
The invention utilizes parameter changes by varying the number, size, and distribution of protrusions on the partition wall surfaces. By adjusting these parameters, the heat transfer efficiency is enhanced while keeping the structural complexity within acceptable limits through optimized parameter selection.
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 higher heat-transfer efficiency and effective temperature regulation with reduced pressure loss, ensuring efficient cooling and heating of battery modules, even in high-capacity packs.
Implementation Method 1
at least one space that is formed between the battery modules that are adjacent to each other, and that serves as a flow path through which a heat carrier flows
Implementation Method 2
a plurality of protrusions that protrude toward an inside of the space, and that are arranged on surfaces of opposing surfaces that oppose each other and that define the space
Data Source
AI summary
A battery pack includes a plurality of battery modules; at least one space that is formed between the battery modules that are adjacent to each other, and that serves as a flow path for a heat carrier; and a plurality of protrusions that protrude toward an inside of the space, and that are arranged on surfaces of opposing surfaces that oppose each other and that define the space. The plurality of protrusions that are arranged on one surface of the opposing surfaces and the plurality of protrusions that are arranged on the other surface of the opposing surfaces are arranged in positions that oppose each other across the space.