Vehicle Tire Wheel Neutralization Device for Static Electricity
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Solution Overview
Problem
Static electricity accumulation on vehicle surfaces, particularly on non-conductive materials, leads to uneven charging, causing airflow separation and reduced running stability due to repulsive forces between airflow and statically charged surfaces.
Innovation Solution
A neutralization device is attached to the tire wheel and rim portions, utilizing corona discharge to attract negative ions and neutralize static electricity, ensuring homogeneous neutralization across a large area and preventing airflow separation by damping repulsive forces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a self-discharge device is attached to the rotational center of the wheel, then static electricity in the vicinity of the hub is neutralized, but static electricity on other portions of the vehicle body is not effectively neutralized
Solution Approach 1:
The neutralization device is segmented into multiple discharge points arranged in a specific pattern around the wheel circumference. This segmentation allows the device to neutralize static electricity across multiple areas simultaneously, transforming a single-point neutralization approach into a multi-point system that covers both the hub vicinity and outer portions of the vehicle body.
Solution Approach 2:
The invention transitions from a single-point neutralization approach (rotational center only) to a two-dimensional arrangement of multiple discharge points around the wheel circumference. This dimensional expansion enables comprehensive coverage of static electricity accumulation areas across different radial distances from the wheel center.
2Reliability
If static electricity is discharged to the road surface through conductive path, then static electricity is neutralized, but the vehicle body may not be charged homogeneously causing localized concentration
Solution Approach 1:
The neutralization device applies local quality by creating different electrical discharge characteristics at different locations around the wheel. Each discharge point is strategically positioned to address local static electricity concentration patterns, ensuring homogeneous neutralization across the entire vehicle body surface rather than uniform treatment everywhere.
3Reliability
If static electricity concentrates on portions with low electric conductivity or resin material, then discharge is needed at these specific locations, but attaching neutralization device at these locations may cause airflow separation
Solution Approach 1:
The wheel structure serves as an intermediary carrier that distributes the neutralization function across multiple locations. Rather than directly attaching neutralization elements to problematic low-conductivity portions, the system uses the wheel's rotational motion and structured discharge points to indirectly neutralize static electricity at these locations while maintaining aerodynamic integrity.
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 improves driving stability by ensuring desired aerodynamic characteristics, particularly in the rolling and yawing directions, by neutralizing static electricity and maintaining airflow adherence to the vehicle surface.
Implementation Method 1
The neutralization device is adapted to cause corona discharge when a positive potential of the point to which the neutralization device is attached exceeds a predetermined value
Data Source
AI summary
A neutralization device that neutralizes static electricity on a portion of a vehicle exposed to outside. The neutralization device causes corona discharge according to a positive potential thereof. The neutralization device is attached to a surface exposed outwardly widthwise of the vehicle in at least one of an inner circumferential portion of a tire and a predetermined point of an outer surface of tire wheel.