Brake Disk Non-Overlapping Segmentation Heat Insulation
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Solution Overview
Problem
Conventional brake disks face issues with heat transmission to the hub during braking, inadequate heat insulation, weak structural strength, and dimensional errors leading to instability and poor installation convenience due to overlapping or poorly designed components.
Innovation Solution
A brake disk design featuring a non-overlapping outer and inner disk configuration with radially extending connecting bridges and recessed portions, along with positioning members that prevent axial movement and rotation, while maintaining a gap to inhibit heat transfer and enhance structural integrity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If the outer disk and inner disk overlap with each other and are fixed by positioning members, then the heat insulation effect is improved, but the structural strength becomes weak and the contact area is great causing poor heat insulation
Solution Approach 1:
The brake disk is divided into two separate disks (outer disk and inner disk) that do not overlap, with positioning members extending through both disks to fix them together. This segmentation reduces the contact area between disks, improving heat insulation while maintaining structural strength through the positioning member connections.
Solution Approach 2:
The positioning members serve as intermediaries that connect the outer disk and inner disk without requiring large contact areas. The positioning members extend through both disks and are fixed, providing structural strength while allowing heat insulation between the non-overlapping disk surfaces.
2Temperature
If the inner disk and outer disk are provided with recess or U-shaped portions that correspond to each other to form through holes, then the heat insulation effect is improved, but the positioning member is sandwiched between disks causing heat transmission and the structure becomes complex
Solution Approach 1:
The brake disk is segmented into two non-overlapping disks with positioning members that extend through both disks. This eliminates the need for recesses or U-shaped portions, simplifying the structure while maintaining heat insulation through the reduced contact area between disks.
Solution Approach 2:
The positioning members are extracted from being sandwiched between recesses and instead extend through the entire thickness of both disks. This removes the complexity of interlocking recesses while maintaining positioning function and reducing heat transmission paths.
3Stability of the object's composition
If the protruding portion is V-shaped with the engaging hole at the intersection of two legs, then the rotational constraint is achieved, but too much stress concentrates on the intersection causing weak structural strength
Solution Approach 1:
The engaging portion is designed with an asymmetric structure where the engaging hole is positioned at one end of the protruding portion rather than at the intersection of two legs. This asymmetric design reduces stress concentration while maintaining the rotational constraint function through the positioning member connection.
Solution Approach 2:
The rotational constraint is achieved by positioning the engaging hole at the end of the protruding portion, utilizing the axial dimension rather than relying on the intersection of radial legs. This dimensional change distributes stress more evenly while maintaining rotational stability.
4Reliability
If the opening of the recessed portion is smaller than the maximum width of the protruding portion, then the protruding portion cannot enter along the radial direction, but the installation becomes inconvenient requiring axial direction installation only
Solution Approach 1:
Instead of having the protruding portion enter the recessed portion along the radial direction (conventional approach), the design inverts the approach by having the positioning member extend through both disks in the axial direction. This allows radial installation convenience while achieving reliable rotational constraint through the through-hole positioning member.
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 design effectively prevents heat transfer from the outer to the inner disk, enhances structural strength, and ensures stable operation by preventing rotational misalignment and abrasion, while allowing easy installation and improved heat dissipation.
Implementation Method 1
a gap between the outer disk and the inner disk, so as to prevent heat transfer from the outer disk to the inner disk
Data Source
AI summary
A brake disk includes: an outer disk, being substantially ring-shaped and defining a central axis, an inner annular flange of the outer disk formed with connecting bridges, the connecting bridge having a protruding portion disposed through a disposing hole axially; an inner disk, coaxially disposed in the outer disk and located on a same plane with the outer disk, an outer annular flange of the inner disk formed with recessed portions corresponding to the protruding portions respectively, the protruding portion fittingly engaged with the recessed portion to prevent the inner disk from rotating relative to the outer disk, the recessed portion and the protruding portion having a gap therebetween; a plurality of positioning members, each positioning member disposed through the disposing hole to restrain the outer and inner disks from moving relatively axially; wherein the outer and inner disks are axially non-overlapping.