Battery Module Heat Dissipation Ribs Structural Integrity
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Solution Overview
Problem
High-capacity rechargeable batteries generate significant heat during charging and discharging, which can lead to explosion or ignition, and are prone to damage from external impacts, causing short-circuits and electric shocks when used in vehicles or electric scooters due to inadequate heat dissipation and structural integrity.
Innovation Solution
A battery module with a housing featuring first and second heat dissipation ribs of varying shapes and densities, coupled by heat conductive members, to efficiently dissipate heat and enhance structural strength by decentralizing impact forces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If high-capacity rechargeable batteries are used to increase power output, then the energy density and power capability are improved, but heat generation increases leading to explosion or ignition risks
Solution Approach 1:
The housing is segmented with multiple heat dissipation ribs that divide and distribute heat across different areas, allowing heat to be dissipated through multiple pathways rather than concentrating in one location
Solution Approach 2:
Heat dissipation is extended from a two-dimensional surface to a three-dimensional structure by adding protruding heat dissipation ribs that increase the surface area and create convection channels for more effective heat removal
2Weight of moving object
If the housing structure is simplified to reduce weight, then the manufacturing cost and complexity are reduced, but structural integrity and impact resistance deteriorate
Solution Approach 1:
The housing structure is divided into multiple rib elements that individually bear and distribute impact forces, preventing any single point from bearing the full load and maintaining strength with less material
Solution Approach 2:
The housing combines plastic material with integrated heat dissipation rib structures to achieve both lightweight properties and enhanced mechanical strength through structural design
3Temperature
If heat dissipation surface area is increased to improve cooling, then heat dissipation efficiency is improved, but device complexity and manufacturing difficulty increase
Solution Approach 1:
The heat dissipation function is merged into the housing structure itself by integrating heat dissipation ribs directly into the housing body, eliminating the need for separate cooling components and reducing overall device complexity
Solution Approach 2:
The housing ribs serve multiple functions simultaneously: they provide structural reinforcement for impact resistance and act as heat dissipation elements, combining mechanical support and thermal management in 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 solution effectively cools the batteries by dispersing heat and improves the structural integrity of the housing, reducing the risk of explosions, ignitions, and electrical shocks, while maintaining a lightweight design.
Implementation Method 1
A heat conductive member having a higher heat conductivity than the housing may be between the rechargeable batteries and the bottom of the housing
Implementation Method 2
first heat dissipation ribs protruded from the housing and having a shape of a polygon or a closed curve; and second heat dissipation ribs protruded from the housing and linearly formed to couple the first heat dissipation ribs to each other
Data Source
AI summary
A battery module includes a plurality of rechargeable batteries; a housing containing the rechargeable batteries; first heat dissipation ribs protruded from the housing and having a shape of a polygon or a closed curve; and second heat dissipation ribs protruded from the housing and linearly formed to couple the first heat dissipation ribs to each other.