Forced-Ventilation Shoe Sole With Air-Guiding Insole Channels

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Solution Overview

Problem

Conventional shoes lack effective heat dissipation and ventilation systems, leading to discomfort and potential foot diseases due to insufficient breathability and uneven cooling.

Innovation Solution

A shoe design featuring an airflow distributing device in the sole that expels air through an exhaust port, combined with a supporting insole with air guiding mesh grooves to enhance airflow distribution, creating a forced ventilation system that actively removes heat and moisture.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Temperature

If fans are installed in the shoe sole to improve breathability, then heat dissipation and ventilation are enhanced, but the air circulation paths are notscientific enough resulting in uneven local cooling and low ventilation efficiency

Engineering Contradiction:
Improveheat dissipationVSAvoidair circulation path design
Core Design Contradiction:
TemperatureVSDevice complexity

Solution Approach 1:

The insole is divided into multiple independent air guiding channels that segment the airflow path. Each channel independently guides air from different regions of the shoe to the exhaust port, ensuring comprehensive and uniform ventilation across the entire foot area rather than concentrated cooling in one location.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The air guiding channels are strategically positioned to provide localized airflow guidance at different regions of the insole. This creates differentiated ventilation zones that match the thermal distribution patterns of the foot, ensuring each area receives appropriate cooling according to its specific thermal needs.

Inventive Principle:
Principle #3Local quality

2Device complexity

If conventional shoe designs are used without active ventilation, then the structure remains simple, but heat and moisture cannot be promptly expelled causing discomfort and foot diseases

Engineering Contradiction:
Improveventilation system structureVSAvoidheat and moisture accumulation
Core Design Contradiction:
Device complexityVSObject-affected harmful factors

Solution Approach 1:

The air guiding channels utilize the natural pressure differential created by foot movement and body heat to drive airflow through the channels. The system serves itself by converting the wearer's natural activities into the driving force for ventilation, eliminating the need for external power sources or complex mechanical components.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The design employs pneumatic principles by creating pressure-driven airflow paths through the insole channels. Air moves from high-pressure regions (near the foot) to low-pressure regions (exhaust port) through the structured channels, utilizing fluid dynamics to achieve active ventilation without mechanical fans or motors.

Inventive Principle:
Principle #29Pneumatics and hydraulics

3Productivity

If passive air circulation is relied upon, then energy consumption is low, but ventilation efficiency is insufficient and independent of environmental conditions

Engineering Contradiction:
Improveair exchange efficiencyVSAvoidenergy consumption
Core Design Contradiction:
ProductivityVSUse of energy by moving object

Solution Approach 1:

The air guiding channels are designed to dynamically adapt to varying foot movement patterns and environmental conditions. The channels maintain effective airflow by leveraging changes in pressure differentials that occur naturally during walking or standing, allowing the ventilation efficiency to remain high across different activity levels without additional energy input.

Inventive Principle:
Principle #15Dynamics

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 ensures uniform and efficient heat dissipation and ventilation, eliminating ventilation dead zones and providing a comfortable, dry foot environment by actively expelling warm, humid air and drawing in fresh air, independent of external conditions.

Implementation Method 1

The airflow distributing device is configured to expel air inside the shoe to an outside of the shoe through the exhaust port, while accelerating an air circulation rate

Methodology Applied
Scientific EffectForced Convection: Forced Convection

Implementation Method 2

the supporting insole is equipped with air guiding mesh grooves, and the air guiding mesh grooves are configured for secondary distribution of an airflow in the wearing space

Methodology Applied
Scientific EffectFluid Flow:

Data Source

PatentUS20260007205A1Shoe
Publication Date: 2026.01.08 GUANGZHOU ZHENGTAO ENTERPRISE MANAGEMENT CO LTD
  • US20260007205A1 patent drawing
  • US20260007205A1 patent drawing
  • US20260007205A1 patent drawing

AI summary

A shoe, including a shoe upper, a sole and a wearing space. Further includes an airflow distributing device and an exhaust port. The airflow distributing device includes an air inlet and an air outlet, which are served to discharge the hot and humid air from inside the shoe to the outside. The shoe achieves a function of expelling humid and hot air from the shoe through the airflow distributing device, thus improving the comfort of the internal environment of the shoe and solving the issues of stuffiness and dampness in conventional footwear. The airflow distributing device drives forced ventilation, making the air exchange efficiency independent of environmental conditions and actively creating an airflow path of “external environment→humid and hot air inside the shoe→air inlet of the airflow distributing device→airflow distributing device pressurizes and accelerates→air outlet of the sole→external environment.”