Segmented Cooling Plate Structure for Large Battery Modules

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Solution Overview

Problem

The production of cooling plates for large battery modules is complicated, making it difficult to achieve effective cooling and heat dissipation.

Innovation Solution

The cooling device is divided into two independently producible cooling members connected by gaps, allowing for separate manufacturing and improved heat dissipation capabilities.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Area of stationary object

If a single large cooling plate is produced for large battery modules, then cooling coverage is improved, but manufacturing complexity increases and production becomes difficult

Engineering Contradiction:
Improvecooling coverage areaVSAvoidmanufacturing process complexity
Core Design Contradiction:
Area of stationary objectVSDevice complexity

Solution Approach 1:

The cooling device is divided into a first cooling member and a second cooling member, each with independent flow channels. These separate cooling members can be manufactured independently using standard aluminum extrusion molding processes, avoiding the complexity of producing a single large cooling plate while maintaining comprehensive cooling coverage through their combined arrangement.

Inventive Principle:
Principle #1Segmentation

2Reliability

If cooling plate undergoes multiple sequential processes (stamping, graphite screen printing, gas blowing, cutting, punching), then cooling performance is improved, but production time and complexity increase

Engineering Contradiction:
Improvecooling performanceVSAvoidproduction time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The flow channels are formed directly during the aluminum extrusion molding process itself, rather than requiring subsequent stamping, graphite screen printing, gas blowing, cutting, and punching operations. This preliminary formation of flow channels during the primary manufacturing process significantly reduces production time and complexity while maintaining effective cooling performance.

Inventive Principle:
Principle #10Preliminary action

3Strength

If cooling plate is produced by traditional stamping and sequential processes, then structural integrity is maintained, but adaptability to different battery module sizes is reduced

Engineering Contradiction:
Improvestructural integrityVSAvoidadaptability to battery module sizes
Core Design Contradiction:
StrengthVSAdaptability or versatility

Solution Approach 1:

The divided cooling member structure allows flexible configuration and arrangement to match different battery module sizes and shapes. Each cooling member can be independently designed and manufactured to fit specific applications, enhancing adaptability while maintaining structural integrity through standard aluminum extrusion processes.

Inventive Principle:
Principle #1Segmentation

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 simplifies production and enhances heat exchange efficiency, making it suitable for large battery modules.

Implementation Method 1

the first flow channel communicates with the second flow channel through the first gap and the second gap

Methodology Applied
Scientific EffectFluid flow through gaps:

Implementation Method 2

the cooling device is configured for cooling the battery component

Methodology Applied
Scientific EffectThermal conduction: Conduction (thermal)

Data Source

PatentEP4697453A1Cooling device and manufacturing method therefor, battery module and battery pack
Publication Date: 2026.02.18 EVE ENERGY STORAGE CO LTD
  • EP4697453A1 patent drawingFigure 1~2
  • EP4697453A1 patent drawingFigure 3~4
  • EP4697453A1 patent drawingFigure 5~6

AI summary

A cooling device is provided. The cooling device includes a first and second cooling members each including a first side and a second side oppositely disposed. The first cooling member is provided with a first flow channel, and the second cooling member is provided with a second flow channel. The first side of the first cooling member is fixedly connected to the second side of the second cooling member. The first side of the first cooling member is provided with a first gap. The second side of the second cooling member is provided with a second gap. The first flow channel communicates with the second flow channel through the first gap and the second gap.