Battery Pack Guide Grooves and Ridges for Impact Resistance
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Solution Overview
Problem
Existing battery packs for medium or large devices, such as electric vehicles and laptops, face challenges in providing a stable and impact-resistant structure while maintaining high output and capacity, and efficient heat dissipation.
Innovation Solution
A battery pack design featuring a case with guide grooves and a core pack with ridges and holders that securely accommodate batteries, a protective circuit module, and a case made of high thermal conductivity material, ensuring stability and efficient heat dissipation through a simple manufacturing process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a battery pack uses a complex structure with multiple components to improve stability and impact resistance, then the structural strength improves, but the device complexity increases
Solution Approach 1:
The guide grooves and ridges are integrated into the case and core pack structures respectively, combining the guiding function and the protective function into unified components. The ridges on the core pack serve both as alignment guides and as structural elements that work with the guide grooves to provide impact resistance, eliminating the need for separate protective components.
Solution Approach 2:
The battery pack is divided into distinct functional modules: the case with guide grooves, the core pack with ridges, and the holder assembly. This segmentation allows each component to be optimized independently for its specific function while maintaining overall structural integrity and simplifying manufacturing processes.
2Manufacturing precision
If guide grooves and ridges are added to improve assembly precision and stability, then the manufacturing precision improves, but the device complexity increases
Solution Approach 1:
The guide grooves and ridges are pre-formed as integral parts of the case and core pack structures during manufacturing. This preliminary action ensures precise alignment and positioning is built into the components themselves, eliminating the need for complex assembly procedures or additional adjustment mechanisms during final assembly.
3Temperature
If the case is made of high thermal conductivity material to improve heat dissipation, then the temperature control improves, but the manufacturing cost increases
Solution Approach 1:
High thermal conductivity material is used specifically for the case that contacts the battery cells, providing targeted heat dissipation where it is most needed. Other parts of the battery pack structure can use standard materials, balancing thermal management performance with manufacturing cost considerations.
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 results in a battery pack that is resistant to vibration and impact, with improved heat dissipation and efficient battery management, enhancing the operational stability and longevity of medium to large devices.
Implementation Method 1
a plurality of guide grooves formed in inner corners of the case and extending in a length direction of the case, and the core pack further includes a plurality of ridges that respectively slide into the guide grooves in the length direction of the case
Implementation Method 2
a case made of high thermal conductivity material, ensuring stability and efficient heat dissipation
Data Source
AI summary
Provided is a battery pack. The battery pack includes: a case including a cavity; a core pack that inserts into the cavity and comprising a plurality of batteries; a first cover coupled to a side of the case; and a second cover coupled to the other side of the case. The case further includes a plurality of guide grooves formed in inner corners of the case and extending in a length direction of the case, and the core pack further includes a plurality of ridges that respectively slide into the guide grooves in the length direction of the case.