Cylindrical Battery Module Holder Layout for Space and Vibration Control

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Solution Overview

Problem

Existing battery module arrangements for battery packs in heavy-duty vehicles face challenges in achieving a balance between reliability, robustness, space efficiency, and cost-effectiveness.

Innovation Solution

The proposed battery module arrangement features a holder design with cylindrical apertures that allow cylindrical battery cells to protrude from both sides of the holder, enabling a more space-efficient packaging and facilitating the integration of cooling features. Additionally, a bottom bracket and side brackets provide structural support, enhancing the module's robustness and rigidity.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Volume of moving object

If cylindrical battery cells are arranged in conventional holders, then structural support is provided, but space efficiency in the longitudinal direction is reduced

Engineering Contradiction:
Improvespace efficiencyVSAvoidholder structure
Core Design Contradiction:
Volume of moving objectVSDevice complexity

Solution Approach 1:

The holder is divided into multiple segments or sections, each capable of independently supporting battery cells. This segmentation allows for optimized space utilization in each section while maintaining overall structural integrity, resolving the contradiction between space efficiency and structural support.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The holder design incorporates nested structures where components are arranged concentrically or in layered configurations. This nesting approach maximizes the use of available longitudinal space while providing multiple levels of structural support, thereby improving space efficiency without compromising holder functionality.

Inventive Principle:
Principle #7Nested doll (Nesting)

2Adaptability or versatility

If battery cells protrude from one side only, then simplified holder design is achieved, but design freedom for cooling features is limited

Engineering Contradiction:
Improvedesign freedomVSAvoidholder configuration
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The holder design employs asymmetric configurations where battery cells can protrude differently from each side based on specific cooling requirements. This asymmetry provides design freedom to optimize cooling feature integration on each side independently, while the overall holder structure remains unified and manageable.

Inventive Principle:
Principle #4Asymmetry

Solution Approach 2:

The design transitions from single-sided to multi-sided protrusion arrangements, adding dimensional versatility to the holder configuration. This allows cooling features to be integrated from multiple directions and perspectives, significantly enhancing design freedom for thermal management solutions.

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

3Reliability

If rigid structural support is provided, then vibration resistance is improved, but space efficiency is reduced

Engineering Contradiction:
Improvevibration resistanceVSAvoidspace efficiency
Core Design Contradiction:
ReliabilityVSVolume of moving object

Solution Approach 1:

The holder structure implements local quality enhancement by providing rigid support only in specific critical areas where vibration resistance is most needed, while other areas maintain more flexible or space-efficient configurations. This localized reinforcement achieves vibration resistance without the penalty of overall structural rigidity.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The holder design incorporates dynamic characteristics with adjustable or flexible support elements that can adapt to vibration conditions. This allows the structure to provide necessary rigidity during operation to resist vibrations while maintaining space efficiency in the overall design, resolving the contradiction between reliability and space utilization.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS20250158202A1Battery module arrangement, a battery pack, and a vehicle
Publication Date: 2025.05.15 VOLVO TRUCK CORP
  • US20250158202A1 patent drawing
  • US20250158202A1 patent drawing
  • US20250158202A1 patent drawing

AI summary

A battery module arrangement for a battery pack has a longitudinal extension in a longitudinal direction, a width extension in a width direction and a height extension in a height direction, the battery module arrangement comprises a first set of cylindrical battery cells and a first holder.