Battery Pack Cooling Plate with Integrated Inlet-Outlet Blocking Structure

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Solution Overview

Problem

Existing liquid cooling plates for battery packs suffer from stress concentration and complex assembly processes due to the connection of inlet and outlet nozzles with the body portion, leading to potential deformation and instability.

Innovation Solution

The design integrates a blocking portion with the liquid inlet and outlet structures, eliminating the need for individual through holes in the body portion, simplifying assembly, and enhancing structural stability by supporting the openings with blocking portions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If liquid inlet nozzle and liquid outlet nozzle are assembled to the body portion, then liquid cooling function is achieved, but stress concentration occurs at connection positions and assembly process becomes complicated

Engineering Contradiction:
Improvestructural stabilityVSAvoidassembly process complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent merges the liquid inlet nozzle, liquid outlet nozzle, and body portion into a single integrated structure. The nozzles are formed as integral parts of the body portion through injection molding, eliminating separate assembly steps and connection interfaces. This reduces assembly complexity while maintaining structural stability by removing stress concentration points at connection positions.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The body portion serves multiple functions simultaneously: it provides the cooling chamber for heat dissipation, forms the liquid inlet nozzle and liquid outlet nozzle as integral structures, and acts as the structural support element. This multi-functionality eliminates the need for separate nozzle components and their associated assembly processes.

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

2Reliability

If liquid inlet nozzle and liquid outlet nozzle are assembled to the body portion, then liquid flow paths are established, but stress concentration occurs leading to potential deformation

Engineering Contradiction:
Improvestructural stabilityVSAvoidconnection position strength
Core Design Contradiction:
ReliabilityVSStrength

Solution Approach 1:

By combining the nozzles and body portion into a single molded structure, the patent eliminates weak connection interfaces where stress concentration would occur. The integral design ensures uniform stress distribution throughout the structure, preventing deformation at connection positions while maintaining the necessary liquid flow paths.

Inventive Principle:
Principle #5Merging (Combining)

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 reduces stress concentration, simplifies assembly, improves structural stability, and enhances sealing performance, while optimizing cooling efficiency through independent liquid chambers and uniform flow distribution.

Implementation Method 1

a body portion 10 having a heat exchange cavity 101

Methodology Applied
Scientific EffectHeat exchange: Heat Exchanger

Implementation Method 2

liquid inlet structure 30 and a liquid outlet structure 40, wherein the liquid inlet structure is arranged on the blocking portion and is in communication with the heat exchange cavity; the liquid outlet structure is arranged on the blocking portion and is in communication with the heat exchange cavity

Methodology Applied
Scientific EffectConvection: Convection

Data Source

PatentUS20260045584A1Liquid cooling plate and battery pack
Publication Date: 2026.02.12 EVE ENERGY CO LTD
  • US20260045584A1 patent drawing
  • US20260045584A1 patent drawing
  • US20260045584A1 patent drawing

AI summary

A liquid cooling plate includes: a body portion; a blocking portion; a liquid inlet structure; and a liquid outlet structure. The body portion has a heat exchange cavity and an opening structure communicated with the heat exchange cavity. The opening structure is arranged at a side portion of the heat exchange cavity. At least a part of the blocking portion is disposed inside the opening structure to block and support the opening structure. The liquid inlet structure is arranged on the blocking portion. The liquid inlet structure is in communication with the heat exchange cavity. The liquid outlet structure is arranged on the blocking portion. The liquid outlet structure is in communication with the heat exchange cavity.