Split Battery Module Container for Busbar Assembly

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Solution Overview

Problem

The assembly of battery modules is hindered by the lack of operating space for connecting busbars when the distance between battery unit array structures is small, leading to reduced energy density due to the need for additional components for transportation.

Innovation Solution

A battery module design featuring split container bodies with separate accommodating cavities allows for sequential placement and fixation of battery units and connection to busbars without additional components, enhancing energy density by eliminating the need for extra transportation aids.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If battery units are first fixed and connected to busbars then transported to accommodating cavity, then assembly is simplified, but additional transportation components are required which reduces energy density

Engineering Contradiction:
Improveassembly simplicityVSAvoidenergy density
Core Design Contradiction:
Ease of manufactureVSQuantity of substance

Solution Approach 1:

The patent merges the transportation function with the battery unit structure itself by designing the battery unit array structure to be directly placeable into the accommodating cavity. The battery units are arranged in a compact array that serves both as the functional battery assembly and as its own transportation载体, eliminating the need for separate transportation components and thereby improving energy density while maintaining assembly simplicity.

Inventive Principle:
Principle #5Merging (Combining)

2Quantity of substance

If battery units are first accommodated and fixed then connected to busbars, then energy density is improved by eliminating transportation components, but operating space for busbar connection tools is insufficient when distance between battery unit array structures is small

Engineering Contradiction:
Improveenergy densityVSAvoidbusbar connection accessibility
Core Design Contradiction:
Quantity of substanceVSEase of operation

Solution Approach 1:

The patent addresses the accessibility problem by designing the battery unit array structure with extended surfaces or protruding structures that bring the battery units closer to the busbars in the vertical or lateral dimension. This dimensional adjustment creates sufficient operating space for connection tools while maintaining the compact horizontal arrangement that ensures high energy density.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

3Quantity of substance

If distance between battery unit array structures is reduced, then energy density is improved, but operating space for connection tools is eliminated making busbar connection extremely difficult

Engineering Contradiction:
Improveenergy densityVSAvoidbusbar connection difficulty
Core Design Contradiction:
Quantity of substanceVSDevice complexity

Solution Approach 1:

The patent introduces intermediary structures such as extended connection surfaces, protruding battery unit portions, or adjustable positioning mechanisms that act as mediators between the compact battery unit array and the busbars. These intermediaries provide the necessary access space for connection tools without increasing the overall distance between battery unit array structures, thus maintaining high energy density while reducing connection difficulty.

Inventive Principle:
Principle #24Intermediary (Mediator)

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 facilitates easier assembly and transportation of battery modules by allowing busbar connections without additional components, thereby increasing energy density and simplifying the assembly process.

Implementation Method 1

the first carrying portion and the second carrying portion are respectively connected to the fixing component with heat-conducting glue, so that the first carrying portion is connected to the second carrying portion through the fixing component

Methodology Applied
Scientific EffectHeat conduction: Conduction (thermal)

Data Source

PatentEP3712980B1Battery module and battery pack
Publication Date: 2023.06.14 CONTEMPORARY AMPEREX TECHNOLOGY CO LTD
  • EP3712980B1 patent drawingFigure 1
  • EP3712980B1 patent drawingFigure 2~3
  • EP3712980B1 patent drawingFigure 4~5

AI summary

The present disclosure relates to a battery module including a plurality of battery unit array structures and a battery container body. The battery container body includes a first container body and a second container body that are in a split structure. The first container body is disposed at a side of the second container body and provided with a first accommodating cavity. The second container body is provided with a second accommodating cavity. The plurality of battery unit array structures is disposed between the first container body and the second container body by means of a mutual cooperation of the first accommodating cavity and the second accommodating cavity. Compared with the related art, since the first or second container body is used for transportation, it is unnecessary to introduce an additional component, thereby enhancing the energy density of the battery module.