Battery Cabinet Cooling Layout With Parallel Chilling Pipelines

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Solution Overview

Problem

Existing heat dissipation devices for energy storage devices have great application limitations due to the need for an even number of branch pipelines and limited flexibility in pipeline layout, which affects the efficiency and safety of thermal management.

Innovation Solution

A thermal management system with independent first pipeline assemblies connected in parallel to a water chilling unit, allowing each assembly to be individually controlled, eliminating the need for a main pipeline and enabling flexible pipeline layout and improved safety through bottom penetration and airtight connections.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a traditional heat dissipation device with main pipeline and branch pipelines is used, then the pipeline layout can be optimized, but the application is limited to even number of branch pipelines only

Engineering Contradiction:

Improveapplication rangeVSAvoidpipeline layout complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent divides the heat dissipation system into multiple independent first pipeline assemblies, each capable of independently connecting to the water chilling unit. This segmentation eliminates the need for a centralized main pipeline and allows flexible configuration for any number of battery cabinets, resolving the limitation of even-numbered branch pipelines while maintaining system manageability through modular independence.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent enables dynamic and flexible pipeline layout by allowing each first pipeline assembly to be independently configured and connected. The system transitions from a fixed hierarchical structure to a dynamic modular architecture where pipeline assemblies can be added, removed, or reconfigured based on specific application requirements without affecting other parts of the system.

Inventive Principle:

Principle #15Dynamics

2Reliability

If pipelines penetrate from top ends of battery cabinets, then connection to battery packs is achieved, but liquid leakage may flow to battery packs causing safety hazards

Engineering Contradiction:

ImprovesafetyVSAvoidliquid leakage risk

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent inverts the traditional top-penetration approach by having pipelines penetrate from the bottom ends of battery cabinets instead. This inversion fundamentally changes the leakage risk profile: any liquid leakage would flow downward away from the battery packs rather than upward toward them, thereby eliminating the safety hazard while maintaining effective thermal connection to the battery packs.

Inventive Principle:

Principle #13The other way round (Inversion)

3Adaptability or versatility

If independent first pipeline assemblies are used instead of main pipeline, then flexibility and adaptability are improved, but the number of connection points increases

Engineering Contradiction:

Improvethermal management flexibilityVSAvoidnumber of connection points

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent designs each first pipeline assembly as a universal modular unit that can independently connect to the water chilling unit and serve a battery cabinet. This multi-functionality allows the same assembly design to be replicated for any number of battery cabinets, simplifying the overall system architecture despite the increased number of connection points, as each assembly is a standardized interchangeable component.

Inventive Principle:

Principle #6Universality (Multi-functionality)

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

The system enhances thermal management flexibility, reduces safety hazards, and optimizes space usage while maintaining efficient temperature control of battery packs, thereby prolonging the service life and improving the safety of the power supply system.

Implementation Method 1

the water flowing into the water chilling plates of the battery packs can exchange heat with air in the battery packs

Methodology Applied

Scientific EffectHeat exchange: Heat Exchanger

Implementation Method 2

the water after heat exchange then flows into the other battery cabinet pipeline of the corresponding first pipeline assembly

Methodology Applied

Scientific EffectThermal conduction: Conduction (thermal)

Data Source

PatentUS12562414B2Thermal management system for energy storage device and energy storage device

Publication Date: 2026.02.24 CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED

AI summary

Disclosed is a thermal management system for an energy storage device and an energy storage device. The energy storage device includes a plurality of battery cabinets, battery packs are arranged in the battery cabinets, and the thermal management system includes a water chilling unit and a plurality of sets of first pipeline assemblies. The plurality of sets of first pipeline assemblies correspond to the plurality of battery cabinets one to one, and are connected to the water chilling unit in parallel. Each of the first pipeline assemblies includes two battery cabinet pipelines, one end of the two battery cabinet pipelines is connected to a water inlet side and a water outlet side of the water chilling unit respectively, and the other ends of the two battery cabinet pipelines penetrate into the corresponding battery cabinets respectively and are connected to water chilling plates of the battery packs in the battery cabinets.