Charging Pile Liquid Cooling Radiator Heat Dissipation

Solution Overview

Problem

Traditional DC charging piles require separate heat dissipation modules for each power conversion module and additional secondary heat dissipation for the entire unit, increasing costs and complicating protection measures.

Innovation Solution

Integrating a liquid cooling radiator within the charging pile to dissipate heat through convective heat exchange, eliminating the need for separate heat dissipation modules and enhancing overall protection.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Temperature

If separate heat dissipation modules are designed for each power conversion module, then heat dissipation effectiveness is improved, but device complexity and cost increase

Engineering Contradiction:

Improveheat dissipation effectivenessVSAvoidstructure complexity

Core Design Contradiction:

TemperatureVSDevice complexity

Solution Approach 1:

The patent merges multiple separate heat dissipation modules into a single integrated liquid cooling radiator that serves the entire charging pile. The radiator includes a cooling liquid circulation system with pump, radiator core, and heat exchange channels that collectively dissipate heat from all power conversion modules, eliminating the need for individual heat dissipation components for each module.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The liquid cooling radiator serves as a universal heat dissipation system for the entire charging pile, handling thermal management for multiple power conversion modules simultaneously. The system includes a control unit that monitors and regulates cooling distribution across different modules, providing multi-functional thermal management rather than dedicated single-purpose heat dissipation for each component.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Temperature

If separate heat dissipation modules are designed for each power conversion module, then heat dissipation effectiveness is improved, but manufacturing cost increases

Engineering Contradiction:

Improveheat dissipation effectivenessVSAvoidmanufacturing cost

Core Design Contradiction:

TemperatureVSEase of manufacture

Solution Approach 1:

The patent merges multiple separate heat dissipation modules into a single integrated liquid cooling radiator that serves the entire charging pile. The radiator includes a cooling liquid circulation system with pump, radiator core, and heat exchange channels that collectively dissipate heat from all power conversion modules, eliminating the need for individual heat dissipation components for each module.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The liquid cooling radiator serves as a universal heat dissipation system for the entire charging pile, handling thermal management for multiple power conversion modules simultaneously. The system includes a control unit that monitors and regulates cooling distribution across different modules, providing multi-functional thermal management rather than dedicated single-purpose heat dissipation for each component.

Inventive Principle:

Principle #6Universality (Multi-functionality)

3Temperature

If separate heat dissipation modules are designed for each power conversion module, then heat dissipation effectiveness is improved, but protection level decreases

Engineering Contradiction:

Improveheat dissipation effectivenessVSAvoidprotection level

Core Design Contradiction:

TemperatureVSReliability

Solution Approach 1:

The liquid cooling radiator serves as a universal heat dissipation system for the entire charging pile, handling thermal management for multiple power conversion modules simultaneously. The system includes a control unit that monitors and regulates cooling distribution across different modules, providing multi-functional thermal management rather than dedicated single-purpose heat dissipation for each 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

This integrated design reduces costs, simplifies heat dissipation, and improves the reliability of the charging pile by effectively managing heat in harsh environments.

Implementation Method 1

the liquid cooling radiator is configured to dissipate heat for the charging unit by means of convective heat exchange of cooling liquid

Methodology Applied

Scientific EffectConvective heat exchange: Convection

Implementation Method 2

a power conversion unit of the charging unit is arranged on a contact surface outside of the liquid cooling radiator

Methodology Applied

Scientific EffectThermal conduction: Conduction (thermal)

Data Source

PatentEP3988380A1Charging pile

Publication Date: 2022.04.27 SUNGROW POWER SUPPLY CO LTD

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Figure 5~6

AI summary

A charging pile is provided by the present disclosure, including: a charging unit and at least one liquid cooling radiator arranged in a box of the charging pile; a power conversion unit of the charging unit is arranged on a contact surface outside the liquid cooling radiator; and the liquid cooling radiator is configured to dissipate heat for the charging unit by means of convective heat exchange of cooling liquid, thereby avoiding need to design a heat dissipation module for each power conversion module in the charging pile and then perform a secondary heat dissipation design on the entire charging pile in the conventional technology, which reduces cost of the charging pile and improves a level of protection of the charging pile.