Power Storage Holder Structure for Side-Impact Deformation Control
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Solution Overview
Problem
Existing power storage modules, particularly in vehicles, face safety issues during side collisions due to deformation under impact loads, which can lead to unsafe conditions.
Innovation Solution
A power storage module design featuring a holder with a skeleton made of a strong first material and deformation portions made of a weaker second material, arranged orthogonally to the power storage's axial direction, to absorb and distribute impact loads, thereby reducing deformation and maintaining safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a holder made of strong material is used to support power storages, then the holder can withstand impact loads, but the power storage still deforms under side collision forces
Solution Approach 1:
The holder is segmented into a skeleton made of strong first material and deformation portions made of weaker second material. This segmentation allows different regions to serve different functions: the skeleton provides structural support while the deformation portions absorb impact energy through controlled deformation, preventing force transmission to the power storage.
Solution Approach 2:
The deformation portions act as intermediary elements between the skeleton and the power storage. These portions made of weaker material intercept and absorb impact forces before they reach the power storage, serving as a protective mediator that prevents harmful force transmission.
2Stability of the object's composition
If the holder structure is designed to be rigid, then it maintains structural integrity, but it transmits impact loads directly to the power storage causing deformation
Solution Approach 1:
Different regions of the holder are assigned different material properties: the skeleton uses strong first material for structural integrity, while the deformation portions use weaker second material for impact absorption. This local differentiation allows the holder to simultaneously maintain overall structural stability while providing localized protection against impact loads.
Solution Approach 2:
The holder employs a composite structure combining two different materials with distinct properties. The first material provides rigidity and structural support, while the second material provides ductility and impact absorption capability. This composite approach enables the holder to exhibit both structural integrity and impact attenuation characteristics.
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 effectively absorbs impact loads, suppressing deformation of power storages and preventing unsafe states, thus enhancing the overall safety of the power storage module.
Implementation Method 1
a deformation portion (55) made of a second material having a lower strength than a strength of the first material, than a strength of the first material, and the deformation portion is disposed along a first direction orthogonal to an axial direction of the power storage
Data Source
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AI summary
Power storage module (10) includes: a plurality of power storages (20); holder (50) including a plurality of containers (51), in which each of the plurality of power storages (20) is accommodated in a corresponding one of the plurality of containers (51), holder (50) includes skeleton (54) made of a first material and deformation portion (55) made of a second material having a lower strength than a strength of the first material, and deformation portion (55) is disposed along a first direction orthogonal to an axial direction of the power storage (20).