Electric Vehicle Undercover Snow Discharge Protrusion
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Solution Overview
Problem
Conventional techniques fail to effectively discharge snow and ice from the undercover of electric vehicles, leading to unusual sounds and a decrease in silence due to their movement.
Innovation Solution
The electric vehicle incorporates an undercover with a flat-plate cover body, a discharge portion, and an upward protruding portion extending in the vehicle width direction, which guides snow and ice towards the rear and prevents them from moving forward, along with a retainer and shielding member to prevent entry and facilitate discharge.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an undercover is arranged below the vehicle floor to protect equipment and reduce air resistance, then protection and aerodynamic performance are improved, but snow and ice enter the space between the vehicle floor and undercover and accumulate, causing unusual sounds and reducing silence
Solution Approach 1:
The discharge portion extracts snow and ice from the undercover space by providing a dedicated exit path. The discharge portion includes a discharge hole formed in the undercover, allowing snow and ice to be removed from the enclosed space between the vehicle floor and undercover, preventing accumulation and the associated unusual sounds.
Solution Approach 2:
The upward protruding portion utilizes the vertical dimension to guide snow and ice movement. By forming a protrusion that extends upward from the undercover surface, the design creates a three-dimensional flow path that directs snow and ice toward the discharge portion, preventing them from moving forward and accumulating in the undercover space.
2Device complexity
If snow and ice are allowed to remain in the undercover space, then the undercover structure remains simple, but unusual sounds are generated due to movement of remaining snow and ice
Solution Approach 1:
The undercover is segmented into functional zones: a cover body for protection, an upward protruding portion for guidance, and a discharge portion for removal. This segmentation allows the structure to actively manage snow and ice rather than simply containing them, eliminating unusual sounds while maintaining relative structural simplicity.
Solution Approach 2:
The discharge portion enables the undercover system to self-service by automatically discharging snow and ice through gravity and flow dynamics. The discharge hole and protruding portion work together to create a self-cleaning effect, preventing accumulation and unusual sounds without requiring external intervention or complex mechanisms.
3Object-affected harmful factors
If the upward protruding portion is arranged on the vehicle front side relative to the discharge portion, then snow and ice are prevented from moving toward the vehicle front side and are facilitated to discharge toward the vehicle rear side, but the structure becomes more complex
Solution Approach 1:
The upward protruding portion employs curved or inclined surfaces to guide snow and ice flow. By forming a smooth protrusion rather than sharp edges, the design facilitates natural flow of snow and ice toward the discharge portion while preventing forward movement, reducing unusual sounds with minimal structural complexity.
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
This configuration prevents unusual sounds by ensuring snow and ice are easily discharged to the rear, enhancing the silence of the electric vehicle.
Implementation Method 1
snow and ice that have entered between the vehicle floor and the cover body can be prevented from moving toward the vehicle front side, and the discharge of the snow and ice toward the vehicle rear side can be facilitated
Data Source
AI summary
In an electric vehicle, the generation of unusual sounds due to the movement of snow and ice remaining in an undercover is prevented, thereby enhancing silence. An electric vehicle comprising an undercover arranged below a vehicle floor is provided. The undercover comprises: a substantially flat-plate cover body that covers the vehicle floor from the vehicle front side to the vehicle rear side; a discharge portion for discharging snow and ice that have entered between the vehicle floor and the cover body; and an upward protruding portion which is arranged on the vehicle front side relative to the discharge portion and which is formed to extend in a vehicle width direction and to protrude upwardly from the plane including the cover body.