Vehicle Battery Pack End Plate for Impact and Expansion Load Dispersion
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Solution Overview
Problem
There is a need for a battery installation structure in hybrid or electric vehicles that maximizes energy capacity within limited space while ensuring durability and safety, particularly in handling expansion loads and impact from collisions.
Innovation Solution
A battery installation structure featuring a case with a pack end plate that forms a shock-absorbing space between the case wall and battery modules, using a slanted surface to disperse expansion loads and minimize direct impact transfer during collisions, incorporating a closed cross-sectional structure with vertical and slanted support surfaces and an inner protruding portion for secure mounting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If a battery module is directly mounted against the case wall surface, then the installation space is maximized, but the impact load is directly transferred to the battery module during collision
Solution Approach 1:
The patent introduces a pack end plate as an intermediary component between the battery module and the case wall surface. This end plate includes a shock-absorbing space with a slanted surface that acts as a mediator to absorb and disperse impact loads during collision, preventing direct transfer of harmful forces to the battery module while still maximizing installation space
2Object-affected harmful factors
If a shock-absorbing space with slanted surface is introduced between the case wall and battery module, then impact absorption is improved, but the installation space is reduced
Solution Approach 1:
The patent optimizes the parameters of the shock-absorbing space, specifically the angle of the slanted surface, to achieve the best balance between impact absorption and space utilization. By carefully selecting and adjusting geometric parameters, the design maximizes protective function while minimizing space consumption
3Device complexity
If the pack end plate is fixed directly to the case wall surface, then the structure is simplified, but the expansion load of battery cells cannot be effectively dispersed
Solution Approach 1:
The patent extends the pack end plate structure in the vertical dimension by adding a vertical support surface that contacts the battery module, in addition to the slanted shock-absorbing surface. This multi-dimensional support configuration enables effective dispersion of expansion loads from battery cells while maintaining reasonable structural 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 effectively supports and disperses expansion loads, enhances safety by minimizing direct impact transfer, and maintains durability during vehicle collisions, achieving a lightweight configuration that supports high energy capacity.
Implementation Method 1
the shock-absorbing space including a slanted surface slanted with respect to the wall surface
Implementation Method 2
minimizes direct transfer of impacts to the battery module in the event of a vehicle collision
Data Source
AI summary
A battery installation structure for a vehicle includes a case, configured to allow a plurality of battery modules to be mounted in the case, and a pack end plate mounted so as to form a shock-absorbing space between a wall surface of the case and one end of each of the plurality of battery modules that is parallel to and faces the wall surface, among two opposite ends of each of the plurality of battery modules in a stacking direction of battery cells, the shock-absorbing space including a slanted surface slanted with respect to the wall surface.