Integrated Support Cooling Plate for Battery Pack Leakage

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Solution Overview

Problem

Existing battery packs face issues with poor seal between upper and lower cooling plates, leading to potential cooling liquid leakage and insufficient support strength for the upper cooling plate, which affects heat dissipation and structural integrity.

Innovation Solution

A battery pack design featuring a first and second cooling plate with integrated support structures, including a connection channel and seal ring, to ensure sealed connections and enhanced support for the cooling channels, allowing for effective heat dissipation and improved structural support.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Temperature

If cooling pipelines are connected between upper and lower cooling plates using a connection structure, then heat dissipation is improved, but seal reliability deteriorates causing cooling liquid leakage

Engineering Contradiction:

Improveheat dissipationVSAvoidseal reliability

Core Design Contradiction:

TemperatureVSReliability

Solution Approach 1:

The connection structure is integrated into the support piece, merging the support function and connection function into a single component. The support piece includes a support body that supports the upper cooling plate and a connection channel that communicates with cooling channels in both upper and lower cooling plates, eliminating the need for separate connection structures and improving seal reliability.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The support piece serves multiple functions: it supports the upper cooling plate mechanically and simultaneously provides a sealed connection path for cooling liquid between upper and lower cooling plates. This multi-functional design resolves the contradiction by making the support structure itself responsible for both mechanical support and fluid connection.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Force

If the upper cooling plate supports the weight of the battery unit, then structural support is improved, but the cooling plate strength becomes insufficient leading to deformation

Engineering Contradiction:

Improvesupport capabilityVSAvoidcooling plate strength

Core Design Contradiction:

ForceVSStrength

Solution Approach 1:

The support function is segmented from the cooling plate and transferred to a dedicated support piece. The support piece includes a support body that specifically承担着 supporting the upper cooling plate and battery unit, while the cooling plate focuses on its cooling function. This segmentation allows the support piece to be optimized for mechanical strength without compromising cooling plate performance.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The support piece acts as an intermediary component between the battery unit and the cooling plate. It includes a support body that receives the weight of the battery unit and transfers it to the lower cooling plate, protecting the upper cooling plate from excessive mechanical stress while maintaining structural integrity.

Inventive Principle:

Principle #24Intermediary (Mediator)

3Quantity of substance

If multiple layers of battery units are arranged in stacking manner, then space utility rate is improved, but heat dissipation efficiency deteriorates due to poor seal between cooling plates

Engineering Contradiction:

Improvespace utility rateVSAvoidheat dissipation efficiency

Core Design Contradiction:

Quantity of substanceVSTemperature

Solution Approach 1:

The connection structure is merged with the support piece to create an integrated component that provides both mechanical support and sealed fluid connection. This integration ensures reliable sealing between upper and lower cooling plates, enabling effective heat dissipation in multi-layer battery configurations without the leakage problems of previous designs.

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

The design effectively prevents cooling liquid leakage and enhances the support strength of the upper cooling plate, ensuring efficient heat dissipation and improved energy density and endurance in battery packs.

Implementation Method 1

a first cooling plate P1 internally provided with a cooling channel... a second cooling plate P2... internally provided with a cooling channel

Methodology Applied

Scientific EffectThermal conduction: Conduction (thermal)

Implementation Method 2

cooling liquid leakage... efficient heat dissipation

Methodology Applied

Scientific EffectConvection: Convection

Data Source

PatentEP3799194B1Battery pack

Publication Date: 2022.03.02 CONTEMPORARY AMPEREX TECHNOLOGY CO LTD

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AI summary

A battery pack, including a first cooling plate (PI) internally provided with a cooling channel, a second cooling plate (P2) located above the first cooling plate (PI) and internally provided with a cooling channel, and a first support (L) supporting the second cooling plate (P2), wherein the first support (L) is internally provided with a connection channel (L11), and the connection channel (L11) and the cooling channels in the first cooling plate (PI) and the second cooling plate (P2) are in sealed connection. The connection channel (L11) and the first support (L) are of an integrated structure, the second cooling plate (P2) may be supported well, and the cooling channels in the first cooling plate (PI) and the second cooling plate (P2) may also be in sealed connection.