Battery Pack Reinforcement Supporting Member for Stability

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Solution Overview

Problem

Existing battery packs for vehicles face challenges in structural stability and space utilization due to external impacts and varying environmental conditions, leading to potential cracks and reduced internal space efficiency.

Innovation Solution

Incorporating a reinforcement supporting member between battery module assemblies to enhance structural stability by supporting the cover member for the base plate, allowing for reduced constraints on mounting space and increased internal space utilization.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If battery module assemblies are mounted with large separation distance, then structural stability is improved, but internal space utilization is reduced

Engineering Contradiction:
Improvestructural stabilityVSAvoidinternal space utilization
Core Design Contradiction:
Stability of the object's compositionVSVolume of moving object

Solution Approach 1:

A reinforcement supporting member is introduced as an intermediary element positioned between battery module assemblies. This mediator provides structural reinforcement at the separation part, enabling stable mounting of the cover member while allowing closer spacing of battery modules, thus resolving the contradiction between structural stability and space utilization

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The reinforcement supporting member is strategically positioned only at the separation part between battery module assemblies where structural support is needed. This localized reinforcement approach provides necessary structural stability without requiring increased separation distance throughout the entire battery pack, thereby optimizing internal space utilization

Inventive Principle:
Principle #3Local quality

2Volume of moving object

If battery module assemblies are mounted close together, then internal space utilization is improved, but structural stability deteriorates

Engineering Contradiction:
Improveinternal space utilizationVSAvoidstructural stability
Core Design Contradiction:
Volume of moving objectVSStability of the object's composition

Solution Approach 1:

The reinforcement supporting member acts as a mediator that enables close mounting of battery modules while preventing structural deterioration. It provides localized support at critical separation parts, allowing the battery pack to maintain structural integrity even when modules are positioned close together for optimal space utilization

Inventive Principle:
Principle #24Intermediary (Mediator)

3Stability of the object's composition

If reinforcement supporting member is added, then structural stability is improved, but device complexity increases

Engineering Contradiction:
Improvestructural stabilityVSAvoiddevice complexity
Core Design Contradiction:
Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The battery pack structure is segmented into distinct functional zones: battery module assemblies, separation parts, and reinforcement supporting members. This segmentation allows the reinforcement element to be independently positioned and integrated, providing structural stability while maintaining clear functional separation and manageable device complexity

Inventive Principle:
Principle #1Segmentation

Data Source

PatentEP3333935B1Battery pack having reinforcing support members
Publication Date: 2020.11.25 LG CHEM LTD
  • EP3333935B1 patent drawingFigure 1
  • EP3333935B1 patent drawingFigure 2
  • EP3333935B1 patent drawingFigure 3

AI summary

The present invention provides a battery pack including a base plate including one surface on which two or more battery module assemblies respectively having a plurality of battery cells arranged therein are mounted in a separated state from each other with a predetermined interval therebetween; a cover member battery coupled at one surface of the base plate in a state that the module assemblies are incorporated therein; and a reinforcement supporting member positioned at a separation part between the battery module assemblies while supporting a mounting state of the cover member for the base plate.