Dust Collector for Multi-Disk Brake Rotor Unbalance
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Solution Overview
Problem
Multi-disk brake assemblies in in-wheel electric motors of vehicles generate dust during operation, leading to rotor unbalance due to dust buildup, which is not effectively addressed by existing technologies.
Innovation Solution
A dust-collecting receptacle is integrated into the multi-disk brake assembly, attached to a static structure with slots that capture and trap dust through gravity, preventing it from accumulating on the rotor and allowing for easy removal when full.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a multi-disk brake assembly is used in an in-wheel electric motor, then the brake can be accommodated within the tire profile and eliminate the need for additional drive components, but dust generated during braking accumulates on the rotor causing unbalance
Solution Approach 1:
The patent extracts the harmful dust particles from the rotor environment by introducing a dust collection system with a receptacle that captures and isolates dust away from the rotor, preventing dust accumulation that would cause unbalance
Solution Approach 2:
The patent introduces a dust collection system as an intermediary between the brake assembly and the rotor. This system includes a receptacle and removal mechanism that mediates the harmful interaction by capturing dust before it can accumulate on the rotor
2Reliability
If a dust collection system is added to prevent rotor unbalance, then rotor balance is maintained, but the device complexity increases
Solution Approach 1:
The dust collection receptacle is nested within the existing brake assembly structure, utilizing the available space within the motor housing. The receptacle is positioned to receive dust from the brake assembly without requiring external additions, thus minimizing increased device complexity
Solution Approach 2:
The patent implements a removable receptacle that can be easily detached and emptied. This allows for simple dust disposal without complex automated removal mechanisms, maintaining reliability while minimizing the addition of complex systems
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 solution effectively isolates dust from the rotor, maintaining its balance and allowing for extended vehicle operation without dust-related issues, with the receptacle designed to accommodate substantial dust accumulation for thousands of miles.
Implementation Method 1
Due to gravity, the dust will fall into the slots. Due to gravity and the force of the vehicle when the vehicle comes to a stop, the dust will fall further into the dust-collecting receptacle
Data Source
AI summary
A multi-disk brake assembly includes a static structure defining a plurality of slots, a plurality of disks including stator disks that are supported by the static structure and are non-rotatable, and rotor disks that are interleaved with the stator disks and are rotatable, the plurality of disks being axially moveable between an engaged position and a disengaged position, and a dust-collecting receptacle that is attachable to the static structure for securement during an operative state of the multi-disk brake assembly. The dust-collecting receptacle is in fluid communication with the plurality of slots for receiving and trapping dust from the plurality of disks through the plurality of slots. The dust-collecting receptacle is detachable relative to the static structure during a non-operative state of the multi-disk brake assembly.