Battery Pack Frame With Damped Rigid Beam for Vibration Resistance
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Solution Overview
Problem
Conventional battery packs face issues with durability and stability due to inadequate absorption of external vibrations and impacts, leading to increased weight and reduced energy density when thickness is increased for improved durability.
Innovation Solution
A battery pack structure incorporating a rigid beam formed of a reinforcing member, such as a viscous or viscoelastic damper, integrated into the frame to absorb vibrations and impacts, maintaining energy density without increasing thickness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If a battery pack is designed to fit tightly within a device to save space, then the volume of the battery pack is reduced, but thermal accumulation occurs due to insufficient space for heat dissipation
Solution Approach 1:
The patent transitions from planar/2D heat dissipation to three-dimensional/3D heat dissipation by positioning heat dissipation fins on the top surface of the battery pack. This vertical arrangement allows heat to dissipate in multiple directions (upward through fins, sideways through side surfaces, and downward through bottom surface), effectively solving the thermal accumulation problem caused by tight integration without increasing the battery pack's overall volume.
2Device complexity
If the battery pack structure is simplified to reduce device complexity, then the number of components is reduced, but reliability decreases due to fewer protective measures
Solution Approach 1:
The patent combines multiple protective functions into a single integrated protective plate structure. The protective plate simultaneously provides mechanical protection for the battery cells, serves as a heat dissipation surface, and acts as a structural support element. This merging approach maintains high reliability through comprehensive protection while keeping the overall structure simple and avoiding excessive component proliferation.
Solution Approach 2:
The protective plate is designed with multi-functionality, serving simultaneously as a mechanical protective barrier, a heat dissipation component (with integrated fins), and a structural support element. This universal design ensures that a single component performs multiple critical functions, maintaining system reliability without increasing complexity through additional specialized parts.
3Temperature
If heat dissipation fins are added to the battery pack to improve thermal management, then temperature control is improved, but the device complexity increases
Solution Approach 1:
The heat dissipation fins are merged with the protective plate to form an integrated structure. Rather than being separate components, the fins are directly formed as part of the protective plate, allowing the same component to provide both mechanical protection and thermal management functions. This integration improves temperature control while minimizing the increase in device complexity.
Solution Approach 2:
The protective plate is enhanced with heat dissipation fins to become a multi-functional component that simultaneously provides mechanical protection and active thermal management. This universal design allows a single component to perform multiple critical functions, improving temperature control without requiring additional dedicated heat dissipation structures that would increase overall system complexity.
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 structure enhances durability and rigidity while maintaining energy density, absorbing external shocks and vibrations effectively, thus improving the battery pack's overall performance.
Implementation Method 1
a heat dissipation fin extending from the protective plate toward the second end of the battery pack in the first direction
Implementation Method 2
the heat dissipation fin... configured to dissipate heat of the battery pack
Data Source
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AI summary
The present disclosure relates to a battery pack and a device including the same, and the battery pack according to one embodiment of the present disclosure includes a lower pack frame on which a plurality of battery modules are mounted; an upper pack frame located in the upper part of the plurality of battery modules; and a rigid beam included in the lower pack frame, wherein the rigid beam is formed of a reinforcing member including a viscous damper or a viscoelastic damper.