Liquid-Cooled Plate Assembly with Self-Aligning Recess and Protrusion

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

The assembly process of liquid-cooled plates becomes complicated and installation efficiency decreases as the number of battery cells increases, leading to issues like installing shift and misalignment.

Innovation Solution

A liquid-cooled plate design featuring recesses and protruding portions on adjacent plate bodies allows for quick and accurate positioning, enhancing assembly efficiency by using protruding portions that fit into recesses, thereby improving stability and reducing misalignment.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Temperature

If the number of battery cells is increased, then the heat dissipation performance is improved, but the assembly process becomes complicated and installation efficiency decreases

Engineering Contradiction:
Improveheat dissipation performanceVSAvoidassembly process complexity
Core Design Contradiction:
TemperatureVSDevice complexity

Solution Approach 1:

The liquid-cooled plate is divided into multiple modular plate bodies that can be independently manufactured and then assembled together. Each plate body can be separately produced and then connected through the protrusion-recess structure, allowing the system to scale with battery cell数量 while maintaining manageable assembly complexity through standardized modules

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Multiple plate bodies are merged into a unified cooling structure through the protrusion-recess connection mechanism. The adjacent plate bodies are combined to form an integrated liquid-cooled plate system that provides continuous cooling across multiple battery cells, achieving both thermal management effectiveness and structural unity

Inventive Principle:
Principle #5Merging (Combining)

2Area of stationary object

If the number of liquid-cooled plates is increased, then the heat dissipation coverage is improved, but the assembly process becomes complicated

Engineering Contradiction:
Improveheat dissipation coverageVSAvoidassembly process complexity
Core Design Contradiction:
Area of stationary objectVSDevice complexity

Solution Approach 1:

The liquid-cooled plate system is segmented into multiple standardized plate bodies that can be independently manufactured and assembled. This segmentation allows the cooling system to expand in coverage area while maintaining consistent modular units with standardized connection interfaces

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Each plate body is designed as a universal module with standardized protrusion-recess connection features, allowing the same basic unit to be repeatedly used and assembled in various configurations to achieve different coverage areas without requiring custom designs for each plate

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Ease of manufacture

If conventional chassis splicing structure is used, then the manufacturing is simple, but installing shift and misalignment occur

Engineering Contradiction:
Improvemanufacturing simplicityVSAvoidinstallation alignment precision
Core Design Contradiction:
Ease of manufactureVSManufacturing precision

Solution Approach 1:

The connection interface uses asymmetric protrusion and recess features that provide built-in alignment guidance. The protrusion fits into the recess in only one correct orientation, preventing misalignment and ensuring precise positioning during installation while maintaining relatively simple manufacturing processes

Inventive Principle:
Principle #4Asymmetry

Solution Approach 2:

The protrusion-recess structure provides self-aligning and self-positioning capabilities during assembly. The geometry of the protrusion and recess automatically guides the plate bodies into correct alignment without requiring external alignment tools or complex positioning procedures, eliminating installing shift and misalignment

Inventive Principle:
Principle #25Self-service

Data Source

PatentEP4672426A1Liquid-cooled plate, battery module and battery pack
Publication Date: 2025.12.31 EVE ENERGY CO LTD
  • EP4672426A1 patent drawingFigure 1~2
  • EP4672426A1 patent drawingFigure 3~4
  • EP4672426A1 patent drawingFigure 5~6

AI summary

The present application provides a liquid-cooled plate, a battery module and a battery pack. A side of the first liquid-cooled plate body facing toward the second liquid-cooled plate body is provided with one or more recesses. The second liquid-cooled plate body includes a main body portion and one or more protruding portions. Each protruding portion is protruding from the main body portion. The one or more protruding portions are installed in the one or more recesses so that the first liquid-cooled plate body is installed to the second liquid-cooled plate body. The first liquid-cooled plate body and the second liquid-cooled plate body are positioned, and the installation of the first liquid-cooled plate body and the second liquid-cooled plate body is completed efficiently.