Battery Pack Mounting Brackets with Elastomeric Compression

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Solution Overview

Problem

Existing battery packs lack an effective method to securely fasten multiple battery modules, leading to potential instability and risk of damage during use.

Innovation Solution

A battery pack design featuring a base plate, peripheral side wall, and mounting brackets with an elastomeric member that compresses battery modules between two mounting brackets, ensuring secure fixation along a longitudinal axis.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If battery modules are simply placed on the base plate without fastening, then the battery pack structure is simple and easy to manufacture, but the battery modules become unstable and vulnerable to damage during use

Engineering Contradiction:
Improvestability of battery modulesVSAvoidcomplexity of fastening structure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The fastening system is divided into modular components: mounting brackets with plate portions and extension portions, elastomeric members, and aperture structures. Each component performs a specific function (mounting, compression, cushioning) allowing the system to secure battery modules effectively while maintaining manufacturing simplicity through standardized modular parts

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The elastomeric members are pre-installed on the extension portions of the mounting brackets before final assembly. This preliminary positioning ensures that when the mounting brackets are coupled to the peripheral side wall, the compression force is immediately applied to secure the battery modules, preventing instability before it can occur during operation

Inventive Principle:
Principle #10Preliminary action

2Reliability

If rigid fastening structures are used to secure battery modules firmly, then the stability and security of battery modules is improved, but the risk of damage increases due to lack of cushioning

Engineering Contradiction:
Improvesecurity of battery modulesVSAvoidrisk of damage to battery modules
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

Elastomeric members are installed on the extension portions of the mounting brackets before final assembly. These elastomeric members provide pre-positioned cushioning between the rigid mounting structure and the battery modules, absorbing shock and preventing damage while maintaining secure fixation during normal operation

Inventive Principle:
Principle #11Beforehand cushioning (Prior cushioning)

Solution Approach 2:

The elastomeric members change their mechanical properties under compression - they deform to provide cushioning when shock is applied, but maintain sufficient rigidity under normal operating conditions to secure the battery modules firmly. This dynamic parameter change allows the system to provide both security and damage protection

Inventive Principle:
Principle #35Parameter changes

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 solution provides a stable and secure configuration for battery modules, preventing damage and enhancing the overall reliability of the battery pack.

Implementation Method 1

an elastomeric member disposed on the extension portion. The plate portion of the second mounting bracket is configured to be coupled to an outer surface of the second side portion such that the extension portion extends through the aperture in the second side portion and the elastomeric member contacts another one of the plurality of battery modules to fixedly compress the plurality of battery modules

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentEP2903052B1Battery pack and method for fastening plurality of battery modules thereto
Publication Date: 2016.04.06 LG CHEM LTD
  • EP2903052B1 patent drawingFigure 1
  • EP2903052B1 patent drawingFigure 2
  • EP2903052B1 patent drawingFigure 3

AI summary

A battery pack is provided. The battery pack has a base plate and a peripheral side wall extending upwardly from the base plate. The peripheral side wall has first and second side portions disposed at first and second ends, respectively, of the base plate. The battery pack further includes a plurality of battery modules disposed on the base plate between the first and second ends of the base plate along a longitudinal axis of the base plate. The battery pack further includes a first mounting bracket coupled to the first side portion of the peripheral side wall. The battery pack further includes a second mounting bracket having a plate portion, an extension portion extending outwardly from the plate portion, and an elastomeric member disposed on the extension portion.