Battery Cell Assembly Resilient Coupling Mechanism

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Solution Overview

Problem

Conventional battery cell assemblies face issues with insufficient engagement force between frame assemblies and require additional coupling members, making it difficult to couple them easily.

Innovation Solution

The battery cell assembly incorporates coupling members with tongue portions and female members featuring resilient arm members, allowing for easy coupling of frame assemblies by engaging the resilient arm members with the female members' engagement surfaces.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If conventional coupling methods are used to join frame assemblies, then additional coupling members are required, but the device complexity increases and ease of operation deteriorates

Engineering Contradiction:

Improveease of coupling frame assembliesVSAvoidnumber of coupling members

Core Design Contradiction:

Ease of operationVSDevice complexity

Solution Approach 1:

The coupling member is integrated directly into the frame assembly structure, merging the coupling function with the frame itself. The tongue portion with resilient arm members is formed as part of the frame assembly, eliminating the need for separate coupling components and simplifying the overall device structure while improving ease of coupling operations

Inventive Principle:

Principle #5Merging (Combining)

2Ease of manufacture

If conventional coupling methods are used, then additional coupling members are required, but manufacturing precision and assembly effectiveness deteriorate

Engineering Contradiction:

Improveassembly effectivenessVSAvoidengagement force consistency

Core Design Contradiction:

Ease of manufactureVSManufacturing precision

Solution Approach 1:

The resilient arm members automatically engage with the female member through elastic deformation, creating a self-aligning coupling mechanism. The resilient nature of the arm members provides automatic adjustment and consistent engagement force without requiring high-precision manual assembly, improving both manufacturing ease and engagement reliability

Inventive Principle:

Principle #25Self-service

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

This design enhances the ease and effectiveness of coupling frame assemblies, ensuring a secure and efficient assembly process without the need for additional coupling members.

Implementation Method 1

The first coupling member of the first frame assembly has a first tongue portion with first and second resilient arm members

Methodology Applied

Scientific EffectElasticity: Elasticity

Data Source

PatentEP3324458B1Battery cell assembly

Publication Date: 2022.02.16 LG ENERGY SOLUTION LTD

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AI summary

A battery cell assembly is provided. The battery cell assembly includes a first frame assembly having a first substantially rectangular ring-shaped frame and a first coupling member. The first coupling member of the first frame assembly has a first tongue portion with first and second resilient arm members. The battery cell assembly further includes a second frame assembly having a second substantially rectangular ring-shaped frame and a first coupling member. The first coupling member of the second frame assembly has a female member with a first aperture such that the first and second resilient arm members extend through the first aperture and engage an engagement surface defined by the female member of the first coupling member of the second frame assembly.