Thermally Conductive Ring for Wheel Assembly Heat Management
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing wheel assembly systems experience distortion and structural instability due to thermal expansion variations during braking, leading to uneven wear and compromised steering performance, as the center of the axle and wheel do not conform accurately, causing relative movement and frictional issues with stud bolts and nuts.
Innovation Solution
A thermally conductive ring with a cylindrical main body and heat-dissipating projections is inserted between the stud bolt and wheel, featuring a base metal member, thermally conductive layers, and an auxiliary thermal expansion layer to facilitate heat transfer and reduce thermal expansion gaps, ensuring thermal parallelism and stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional wheel assembly without thermal management is used, then manufacturing simplicity is maintained, but thermal expansion causes distortion and structural instability
Solution Approach 1:
A thermally conductive ring is introduced as an intermediary component between the brake drum and the wheel hub. This ring serves as a heat transfer medium that conducts thermal energy away from the braking system, preventing thermal expansion-induced distortion while maintaining the overall simplicity of the wheel assembly structure.
Solution Approach 2:
The patent changes the thermal parameters of the wheel assembly by incorporating materials with high thermal conductivity in the ring component. This parameter change enables efficient heat dissipation, controlling thermal expansion and maintaining structural stability during braking operations.
2Manufacturing precision
If precise center alignment between axle and wheel is achieved, then coupling accuracy is improved, but thermal expansion still causes relative movement and distortion
Solution Approach 1:
The patent converts the harmful effect of thermal energy into a beneficial one by using the thermally conductive ring to channel heat away from critical components. Instead of allowing thermal energy to cause distortion, it is redirected through the ring to the wheel hub, where it is dissipated, thus preventing relative movement and maintaining assembly stability.
3Temperature
If heat transfer from brake drum to wheel is enhanced, then thermal expansion distortion is reduced, but additional components increase assembly complexity
Solution Approach 1:
The thermally conductive ring serves multiple functions simultaneously: it acts as a structural connector between the brake drum and wheel hub, provides a pathway for heat transfer, and maintains mechanical alignment. This multi-functionality allows effective heat dissipation without significantly increasing the number of discrete components in the assembly.
4Strength
If stud bolt and nut coupling is used to fix wheel to axle, then wheel attachment is achieved, but frictional movement causes nut disconnection and requires repeated fastening
Solution Approach 1:
The thermally conductive ring is pre-installed on the stud bolt before the nut is attached. This preliminary action ensures that the ring is in place to manage thermal expansion forces, preventing the nut from loosening due to frictional movement during braking and eliminating the need for repeated fastening operations.
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 thermally conductive ring effectively transfers heat generated during braking, preventing distortion and overheating, reducing vibration, and improving ride quality and fuel efficiency by maintaining structural stability and reducing uneven wear.
Implementation Method 1
a thermally conductive ring for a wheel assembly which transfers heat generated from a brake drum to a stud bolt to a wheel
Implementation Method 2
a heat-dissipating portion which is formed in at least one side of a surface and edge of the main body and increases the surface area
Implementation Method 3
a heat-dissipating portion which is formed in at least one side of a surface and edge of the main body and increases the surface area
Implementation Method 4
parts have their own thermal expansion coefficient and thus vary the amount of thermal expansion
Data Source
AI summary
According to the present invention, a thermally conductive ring for a wheel assembly, which is inserted over a stud bolt that fixes a brake drum or disc of a vehicle to a wheel, is provided with a cylindrical main body having a cutaway portion in the lengthwise direction, and a heat-dissipating portion formed on at least one side of a surface and edge of the main body to increase the surface area. The thermally conductive ring of a wheel assembly facilitates the transfer of heat generated during braking and driving to the wheels and enables heat dissipation, to retain the initial design specifications of the vehicle while reducing the uneven wear of tires and one side brake, and improving cornering and ride quality.