Battery Module Securing Clip for Cross-Partition Vibration Strength

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Solution Overview

Problem

Conventional battery modules experience reduced structural strength due to low connection strength between second partitions and the first partition, which can lead to failure under vibration and shock.

Innovation Solution

A battery module design incorporating a securing clip that fits with the second partitions and first partition, forming a cross-shaped structure, with a heat exchange plate and position locking features to enhance the connection strength and facilitate assembly.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If structural adhesive is used to fix second partitions to the first partition, then connection is facilitated, but connection strength is low and adhesive layer loses function under vibration and shock

Engineering Contradiction:
Improveconnection facilitationVSAvoidconnection strength
Core Design Contradiction:
Ease of manufactureVSStrength

Solution Approach 1:

The patent replaces the chemical bonding mechanism (adhesive) with a mechanical fastening system (securing clip with extension portions that insert into first cavities). This mechanical connection provides superior strength and reliability under vibration and shock while maintaining ease of assembly through the clip's design that engages with the partition structures.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Strength

If securing clip is used to secure second partitions to the first partition, then connection strength is improved, but device complexity increases

Engineering Contradiction:
Improveconnection strengthVSAvoidstructure complexity
Core Design Contradiction:
StrengthVSDevice complexity

Solution Approach 1:

The securing clip is divided into functional segments: a third body portion for mounting and two extension portions for engagement. Each extension portion independently secures a second partition by inserting into its first cavity. This segmentation allows the single clip component to provide robust mechanical fastening without requiring multiple separate fasteners, thus improving connection strength while controlling complexity.

Inventive Principle:
Principle #1Segmentation

3Ease of manufacture

If adhesive layer is used for connection, then assembly is simple, but reliability is low under vibration and shock

Engineering Contradiction:
Improveassembly simplicityVSAvoidconnection reliability
Core Design Contradiction:
Ease of manufactureVSReliability

Solution Approach 1:

The patent replaces the unreliable adhesive bonding with a positive mechanical interlock system. The extension portions of the securing clip insert into the first cavities of the second partitions, creating a interlocking mechanism that reliably prevents separation under vibration and shock while maintaining assembly simplicity through the clip's engagement design.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Data Source

PatentUS12074335B2Battery module, battery pack, powered device, and assembly method for battery module
Publication Date: 2024.08.27 CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED
  • US12074335B2 patent drawing
  • US12074335B2 patent drawing
  • US12074335B2 patent drawing

AI summary

This application provides a battery module and an assembly method for a battery module. The battery module includes batteries and a framework assembly. The framework assembly includes a first partition, two second partitions, and a securing clip. The first partition extends in a second direction. Each second partition extends in a first direction, and the two second partitions are located respectively on two sides of the first partition and form a cross-shaped structure together with the first partition. The securing clip fits with the two second partitions and secures the two second partitions to the first partition. The batteries are disposed on two sides of each second partition of the framework assembly in the second direction. The two second partitions of the framework assembly are secured to the first partition by using the securing clip, thereby improving the strength of connection between the second partitions and the first partition.