Heat Exchanger with Variable Wind Resistance Regions

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Solution Overview

Problem

Existing heat exchangers face challenges in improving performance, particularly in terms of wind resistance and heat exchange efficiency, which affects the overall efficiency of air conditioning systems and heat exchange systems.

Innovation Solution

The proposed heat exchanger design includes two heat exchanger cores arranged side by side, with each core having a main segment, connection segment, and header. The design incorporates wind resistance regions with varying sizes and fin configurations to optimize airflow and heat transfer.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If wind resistance regions with different fin configurations are designed in the heat exchanger core, then heat exchange efficiency is improved, but device complexity increases

Engineering Contradiction:
Improveheat exchange efficiencyVSAvoiddevice complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent applies local quality by designing different fin configurations in different regions of the heat exchanger core. Specifically, the first wind resistance region has a first fin configuration while the second wind resistance region has a second fin configuration, allowing each region to be optimized for its specific airflow characteristics and heat exchange requirements, thereby improving overall heat exchange efficiency without requiring complete redesign of the entire heat exchanger structure

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The patent segments the heat exchanger core into multiple wind resistance regions (first wind resistance region and second wind resistance region) with different fin configurations. This segmentation allows independent optimization of each region's heat exchange performance while maintaining overall system functionality, resolving the contradiction between improved heat exchange efficiency and reduced device complexity

Inventive Principle:
Principle #1Segmentation

2Speed

If the second wind resistance region has smaller wind resistance than the first wind resistance region, then airflow is improved, but heat exchange area may be reduced

Engineering Contradiction:
ImproveairflowVSAvoidheat exchange area
Core Design Contradiction:
SpeedVSArea of stationary object

Solution Approach 1:

The patent applies local quality by providing different fin configurations in different regions. The first wind resistance region has a first fin configuration that provides higher wind resistance, while the second wind resistance region has a second fin configuration that provides lower wind resistance. This local differentiation allows optimization of airflow in specific regions without compromising overall heat exchange area, as each region's fins are tailored to its specific functional requirements

Inventive Principle:
Principle #3Local quality

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 enhances the performance of the heat exchanger, air conditioning system, and heat exchange system by optimizing wind resistance and heat exchange efficiency, leading to improved refrigerant distribution and reduced condensation water accumulation.

Implementation Method 1

a first main segment, the first main segment of the first heat exchanger core including a plurality of first heat exchange tubes

Methodology Applied
Scientific EffectThermal conduction: Conduction (thermal)

Implementation Method 2

the plurality of first heat exchange tubes of the first main segment of the first heat exchanger core and the plurality of second heat exchange tubes of the second main segment of the second heat exchanger core are interconnected and in fluid communication

Methodology Applied
Scientific EffectConvection: Convection

Implementation Method 3

the first main segment of the first heat exchanger core includes a first wind resistance region and a second wind resistance region

Methodology Applied
Scientific EffectThermal convection: Convection

Data Source

PatentUS20250172343A1Heat exchanger, air conditioning system and heat exchange system
Publication Date: 2025.05.29 DANFOSS AS
  • US20250172343A1 patent drawing
  • US20250172343A1 patent drawing
  • US20250172343A1 patent drawing

AI summary

A heat exchanger, an air conditioning system with the heat exchanger, and a heat exchange system with the heat exchanger. The heat exchanger includes a first heat exchanger core and a second heat exchanger core arranged side by side. The first heat exchanger core includes a first main segment, a first connection segment connected with the first main segment, and a first header. The first main segment includes a plurality of first heat exchange tubes arranged in a second direction perpendicular to the first direction. The second heat exchanger core includes a second main segment, a second connection segment connected with the second main segment, and a second header. The second main segment includes a plurality of second heat exchange tubes arranged in the second direction. The first main segment includes a first wind resistance region and a second wind resistance region arranged in a third direction perpendicular to the first and second directions, the second wind resistance region being adjacent to the first header, and a wind resistance of the second wind resistance region is smaller than that of the first wind resistance region, thereby improving the performance of the heat exchanger, the air conditioning system, and the heat exchange system.