Heat Exchange System for Electronic Control Assembly Cooling

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Solution Overview

Problem

Conventional heat tube radiators for electronic control assemblies have limited heat exchange due to small contact areas, necessitating improved heat dissipation methods to enhance cooling efficiency and reduce noise and safety risks associated with water cooling systems.

Innovation Solution

A heat exchange system comprising a loop configuration with a first and second heat exchange portion, connected by connection tubes, where at least part of the second heat exchange portion is in contact with the electronic control assembly to dissipate heat, utilizing a gravity-driven refrigerant flow to eliminate the need for a water pump and reduce noise and safety risks.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Area of stationary object

If a single heat tube radiator is used for electronic control assembly, then the structure is simple, but the heat exchange area is limited and heat dissipation effect is insufficient

Engineering Contradiction:

Improveheat exchange areaVSAvoidsystem structure

Core Design Contradiction:

Area of stationary objectVSDevice complexity

Solution Approach 1:

The heat exchange system is divided into multiple independent heat exchange portions (first heat exchange portion, second heat exchange portion, etc.), each with its own heat tubes. This segmentation allows each portion to independently exchange heat with the electronic control assembly, significantly increasing the total heat exchange area while maintaining manageable system complexity through modular design.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Multiple heat tubes are arranged in a nested or closely packed configuration within the heat exchange portions. The heat tubes are positioned to maximize contact with the electronic control assembly surface, creating a compact multi-layer structure that increases heat exchange area without proportionally increasing overall system volume.

Inventive Principle:

Principle #7Nested doll (Nesting)

2Temperature

If water cooling system is used to improve heat dissipation, then heat dissipation effect is enhanced, but noise and safety risks increase

Engineering Contradiction:

Improveheat dissipation efficiencyVSAvoidnoise and safety risks

Core Design Contradiction:

TemperatureVSObject-affected harmful factors

Solution Approach 1:

The system replaces the mechanical water circulation system (pump, pipes, reservoir) with a passive heat exchange system. Heat is transferred from the electronic control assembly to the heat tubes through thermal conduction, and then dissipated to the surrounding environment through natural convection and radiation. This eliminates mechanical moving parts that generate noise and safety risks.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The heat exchange system operates autonomously without requiring external power sources or active control mechanisms. The heat tubes naturally conduct heat from the electronic control assembly to the environment, and the system self-regulates heat dissipation rates based on temperature gradients, eliminating the need for pumps and electrical components that create noise and safety concerns.

Inventive Principle:

Principle #25Self-service

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 increases heat exchange area, improves heat dissipation efficiency, reduces noise, and minimizes safety risks by using a gravity-driven refrigerant circulation, enhancing the overall cooling performance for electronic control assemblies.

Implementation Method 1

at least a part of the second heat exchange portion being configured to be in contact with the electronic control assembly, so as to be in conduction with the electronic control assembly to dissipate heat

Methodology Applied

Scientific EffectThermal conduction: Conduction (thermal)

Implementation Method 2

utilizing a gravity-driven refrigerant flow to eliminate the need for a water pump

Methodology Applied

Scientific EffectGravity-driven flow: Gravitation

Data Source

PatentUS12101911B2Heat exchange system used for heat dissipation of electronic control assembly and computer host

Publication Date: 2024.09.24 SANHUA(HANGZHOU) MICRO CHANNEL HEAT EXCHANGER CO LTD

AI summary

A heat exchange system for heat dissipation of an electronic control assembly includes: a first heat exchange portion including a first end having a first communication port and a second end having a second communication port; a second heat exchange portion including a first end having a third communication port and a second end having a fourth communication port, and at least a part of the second heat exchange portion being configured to be in contact with the electronic control assembly; a first connection tube communicating the first communication port with the third communication port; and a second connection tube communicating the second communication port with the fourth communication port. The first and second heat exchange portions and the first and second connection tubes constitute a loop, the loop has an opening, and the opening is closed when the heat exchange system is in an operative state.