Disk Brake Rotor Hole Pattern for Heat Dissipation
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Solution Overview
Problem
Conventional disk braking devices face issues with radiation quality and friction member wear due to radial arrangement of holes, which affects braking performance and noise suppression.
Innovation Solution
A disk braking device with through-holes arranged on individual radial lines and notches directed towards through-hole connecting lines, forming a zigzag pattern and overlapping rotational locus regions, enhancing heat dissipation and reducing friction member abrasion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If holes are arranged radially parallel on the disk plate, then the disk plate weight is reduced, but the radiation quality is impaired and friction members become liable to wear
Solution Approach 1:
The patent applies asymmetry by arranging through-holes on different radial lines instead of radially parallel alignment. Specifically, first through-holes are arranged on a first radial line and second through-holes on a second radial line that is rotated relative to the first, creating an asymmetric pattern that prevents continuous radial heat insulation paths while maintaining weight reduction benefits
Solution Approach 2:
The patent transitions from a one-dimensional radial arrangement to a two-dimensional angular distribution by placing through-holes on multiple radial lines at different circumferential positions. This dimensional change disrupts the formation of continuous radial heat insulation barriers while preserving the weight reduction effect of the holes
2Object-affected harmful factors
If recesses are formed at the outer edge of the disk plate, then brake noise is suppressed, but the radial width of the braking face varies causing inconsistent contact with friction pads
Solution Approach 1:
The patent applies local quality by forming recesses only at specific localized positions (outer peripheral edge portions) rather than uniformly across the entire outer edge. This selective placement suppresses brake noise through localized air cavity formation while preserving the radial width and contact consistency of the main braking face areas
3Weight of moving object
If multiple through-holes are formed on the disk plate, then weight is reduced and cooling is improved, but heat insulation paths may form affecting radiation quality
Solution Approach 1:
The patent uses asymmetric angular distribution of through-holes on multiple radial lines to prevent the formation of continuous radial heat insulation paths. The non-uniform angular spacing ensures that heat can radiate effectively through the disk plate while still achieving weight reduction and cooling benefits from the through-holes
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
Improves radiation quality, suppresses friction member abrasion, and reduces brake noise by effectively dissipating heat and removing debris during braking, extending the service life of friction members.
Implementation Method 1
the disk plate comprises a plurality of through-holes, which are respectively arranged such that each through-hole is provided on an individual radial line passing through a center of the disk plate
Implementation Method 2
enhancing heat dissipation and reducing friction member abrasion
Implementation Method 3
a disk braking device, in which a disk plate fixed to a wheel is interposed by friction members
Data Source
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AI summary
The present invention relates to a disk braking device, in which a disk plate (5) fixed to a wheel is interposed by friction members, wherein the disk plate comprises a plurality of through-holes (20a to 20d), which are respectively arranged such that each through-hole is provided on an individual radial line (D) passing through a center (P) of the disk plate.