Brake Disc Airflow Blades for Wheel Hub Heat Dissipation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing brake assemblies face challenges in effectively managing heat generated during braking, which can lead to thermal damage and reduced performance and safety.
Innovation Solution
The implementation of a thermal management device with geometric features such as blades or fins that enhance airflow around the brake disc and wheel hub, facilitating increased heat dissipation through directed airflow, and the use of thermally conductive materials for improved heat transfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If conventional brake assemblies are used without enhanced thermal management features, then the device complexity remains low, but heat dissipation efficiency is insufficient leading to thermal damage
Solution Approach 1:
The brake disc is segmented into multiple functional zones including friction surfaces for braking, central portions for heat generation, and integrated cooling channels that divide and direct airflow through specific pathways. This segmentation allows simultaneous optimization of braking performance and thermal management without requiring a completely separate cooling system.
Solution Approach 2:
The cooling channels are merged directly into the brake disc structure, combining the braking function and cooling function into a single integrated component. This eliminates the need for separate external cooling systems while maintaining effective heat dissipation, thereby improving heat dissipation efficiency without proportionally increasing device complexity.
2Temperature
If airflow is not directed to locations between the brake disc and vehicle wheel, then the blade structure is simple, but heat transfer rate is insufficient
Solution Approach 1:
The blades extend in the axial dimension between the brake disc and wheel hub, creating three-dimensional airflow pathways that utilize the available space in the axial direction. This dimensional approach enables effective heat transfer without requiring complex lateral or radial modifications to the basic disc structure.
Solution Approach 2:
The blades act as intermediary structures that mediate between the heat source (brake disc) and the cooling medium (air). They direct and accelerate airflow through the intermediate space between the brake disc and wheel hub, enhancing heat transfer without requiring direct contact between the brake disc and complex cooling apparatus.
3Temperature
If thermally conductive materials are not used for the brake disc body, then material selection is simple, but heat transfer from friction surfaces is insufficient
Solution Approach 1:
The brake disc employs composite material construction with the central portion made from thermally conductive material (such as aluminum or aluminum alloy) and the friction surfaces made from friction-resistant material (such as cast iron or ceramic composite). This composite approach optimizes both heat transfer efficiency and braking performance while maintaining manufacturing feasibility through established composite fabrication techniques.
Solution Approach 2:
Different regions of the brake disc are assigned different material properties tailored to their specific functions: the central portion uses high thermal conductivity material for efficient heat extraction, while the friction surfaces use high friction and wear-resistant material for effective braking. This local differentiation optimizes overall performance without requiring exotic materials throughout the entire structure.
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 solution enhances the rate of heat transfer and dissipation, extending the lifespan of brake components, improving safety and performance by efficiently managing thermal energy.
Implementation Method 1
The blades are positioned and/or shaped to increase an airflow from outside of the brake disc and the vehicle wheel to locations between the brake disc and the vehicle wheel
Implementation Method 2
transferring the heat out of the brake disc and dissipating the heat to the surrounding environment
Implementation Method 3
dissipating the heat to the surrounding environment
Implementation Method 4
the wheel-facing surface includes protruding fins positioned to engage a vehicle wheel... for improved heat transfer
Data Source
AI summary
A thermal management device and method implemented by the same that includes plural blades configured to be disposed between a brake disc and a wheel hub, the blades circumferentially spaced apart from each other around the wheel hub, the blades one or more of positioned or shaped to increase an airflow from outside of the brake disc and the vehicle wheel to locations between the brake disc and the vehicle wheel relative to the blades not being positioned between the brake disc and the wheel hub.