Wheel Rim Fin Layout for Tire Heat Dissipation Under Load
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Solution Overview
Problem
Existing vehicle wheel designs fail to effectively dissipate heat generated by tires, particularly under heavy load conditions, as the translational airflow does not significantly benefit from rim fins, limiting heat dissipation efficiency.
Innovation Solution
A vehicle wheel with a rim part featuring a plurality of fins arranged periodically along the circumferential direction on its inner surface, made from materials with high thermal conductivity, such as copper, to enhance heat transfer and dissipation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If fins are arranged randomly on the rim inner circumferential surface to cause turbulent flow, then heat dissipation efficiency is improved under normal conditions, but sufficient heat dissipation effect cannot be attained under heavy load conditions
Solution Approach 1:
The invention divides the rim inner circumferential surface into multiple circumferential rows and radially extends fins within each row, creating a segmented fin structure. This segmentation allows each fin to independently interact with the airflow, enhancing turbulence and heat dissipation effectiveness under heavy load conditions while maintaining the beneficial effects under normal conditions.
Solution Approach 2:
The invention transitions from a two-dimensional random arrangement of convexes to a three-dimensional structured arrangement of fins with specific radial and circumferential positioning. By defining fins with specific height, width, and spacing in multiple circumferential rows, the design adds dimensional control to optimize heat dissipation under varying load conditions.
2Area of stationary object
If the rim is provided with fins to increase surface area, then heat dissipation from the rim is improved, but the translational airflow pattern remains unchanged limiting additional heat transfer
Solution Approach 1:
The fin structure is designed to dynamically interact with the translational airflow by radially extending into the airflow path. The fins create localized turbulence and eddies that enhance convective heat transfer, making the heat dissipation process more effective and dynamic rather than relying solely on static surface area increase.
Solution Approach 2:
The fins act as intermediary structures between the hot rim surface and the cooling airflow. By positioning fins at specific radial distances from the rim center, they serve as heat transfer mediators that efficiently conduct heat from the rim while maximizing exposure to the cooling airflow, thereby enhancing overall heat transfer efficiency.
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 arrangement of fins on the vehicle wheel significantly improves thermal conductivity by 38% for plastic, 59% for aluminum, and 68% for copper, effectively reducing tire temperature by enhancing heat dissipation through increased surface area and material conductivity.
Implementation Method 1
made from materials with high thermal conductivity, such as copper, to enhance heat transfer and dissipation
Implementation Method 2
The arrangement of fins on the vehicle wheel significantly improves thermal conductivity... effectively reducing tire temperature by enhancing heat dissipation through increased surface area and material conductivity
Data Source
AI summary
A vehicle wheel having a rim part to which a tire is mounted and a vehicle body attachment part which is attached to a vehicle body, in which the rim part has, on an inner circumferential surface thereof, a plurality of fins each having a heat dissipation surface, and in which the fins are arranged periodically along a circumferential direction.