Fuse Box Static Eliminator Layout for Hood Charge Neutralization
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Solution Overview
Problem
Existing vehicular static eliminators fail to effectively reduce the charged potential of vehicle bodies and control instruments, leading to impaired control and aerodynamic performance due to residual static electricity, particularly on hoods and other structure members.
Innovation Solution
A vehicular static eliminator configuration featuring a self-discharge static eliminating device attached to vehicle instruments, covered by a coversheet with natural fibers such as Japanese paper or cotton nonwoven fabric, which maintains the potential of the instrument and vehicle body at zero, reducing electrostatic induction and preventing separated flow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the hood is charged with static electricity, then control instruments may be affected, but adding more static eliminating devices increases device complexity
Solution Approach 1:
The coversheet serves multiple functions simultaneously: it covers the self-discharge static eliminating device to maintain its functionality, allows air permeability for ion discharge, prevents direct ion release into the environment, and extends the static elimination effect to the hood. This multi-functionality eliminates the need for additional separate devices.
2Object-affected harmful factors
If air permeability of the coversheet is increased to allow ion flow, then static electricity elimination is improved, but the coversheet structure becomes more complex
Solution Approach 1:
The patent specifies that the coversheet be made of natural fiber with a specific air permeability parameter range of 10-100 mmH2O. This parameter optimization ensures sufficient ion flow for effective static electricity elimination while maintaining a simple, single-layer coversheet structure without complex multi-layer constructions.
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 decreases the electrostatic potential of vehicle bodies and control instruments, restoring original control and aerodynamic performance by neutralizing static electricity and preventing its induction on the vehicle's surface.
Implementation Method 1
when electric charges of outer surfaces of containing cases of an interface terminal, a fuse, and a relay that are mounted in a front compartment are eliminated by corona self-discharge in such a manner that an external air flowing through the front compartment is changed into negative ions
Implementation Method 2
it is possible to reduce the charged potential on the vehicle body by maintaining the potential of the outer surface of the instrument to the potential corresponding to zero and reducing the electrostatic induction from the instrument to the vehicle body
Data Source
AI summary
During traveling of a vehicle body, a vehicle is provided with a vehicular static eliminator including a self-discharge static eliminating device that is attached to an outer surface of a lid of a fuse box mounted to a front compartment with a front grill, and a coversheet overlapped with an external surface of the self-discharge static eliminating device, in which the fuse box is disposed close to a hood and the coversheet includes Japanese paper.