Pickup Rear Floor Drainage Structure for PE Water Protection
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Solution Overview
Problem
The indiscriminate location of drainage holes in electric vehicle pickup trucks poses a risk to the power electronics system by allowing water to drain onto or stagnate near it, potentially causing safety issues and corrosion.
Innovation Solution
A drainage structure is designed for the pickup vehicle's lower vehicle body, incorporating a drainage protection area and guide area to redirect water away from the power electronics system, using a water blocking wall and inclined surfaces to guide water to designated drainage holes, preventing stagnation and indoor ingress.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If drainage holes are applied to the rear floor panel without considering PE system location, then water drainage function is improved, but the PE system is exposed to water damage risk
Solution Approach 1:
The rear floor panel is divided into different functional zones: a drainage area with drainage holes for water discharge, and a drainage protection area (convex part) that elevates the PE system above the water drainage path. This local differentiation ensures that water drainage efficiency is maintained while the PE system is protected from water exposure.
2Reliability
If drainage holes are positioned to avoid the PE system, then PE system safety is improved, but water may stagnate in the deck or flow into the cabin
Solution Approach 1:
The floor structure is segmented into distinct functional areas: the drainage protection area (convex part) that protects the PE system, the drainage area with drainage holes for water discharge, and a drainage guide area with inclined surfaces that actively directs water toward the drainage holes. This segmentation prevents water stagnation and ensures water is guided away from protected areas and toward drainage outlets.
Solution Approach 2:
The drainage guide area employs inclined surfaces and curved geometry to actively direct water flow toward the drainage holes. The convex shape of the drainage protection area and the angled surfaces of the drainage guide work together to channel water away from the PE system and toward the drainage outlets, preventing both stagnation and indoor ingress.
3Reliability
If a water blocking wall with convex part is added to protect the PE system, then PE system protection is improved, but the structure becomes more complex
Solution Approach 1:
The drainage protection area (convex part) and drainage guide area are integrated into a single molded structure formed as one piece with the rear floor panel. This merging of functions into a unified component achieves PE system protection and water guidance without requiring separate additional parts, thereby minimizing structural complexity while maintaining protective functionality.
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 structure enhances vehicle safety by protecting the power electronics system from water damage, improving drainage performance, and reducing corrosion, ensuring smooth water discharge.
Implementation Method 1
the water blocking wall moves water of the PE convex part to a drainage area of the rear floor panel
Data Source
AI summary
A lower vehicle body having a drainage structure for protecting a PE system applied to a pickup vehicle can include a PE convex part of a rear floor panel forming a bed floor lower space with the bed floor and forms the periphery of a PE system as a drainage protection area, such as by using a water blocking wall, thereby preventing water from draining to a top portion of the PE system, in particular, and preventing water from stagnating at a corner portion by a drainage protection area and a drainage guide area due to the prevention of the water drainage to the top portion of the PE system and preventing water from flowing into the indoor and stagnating in the rear floor panel due to the water drainage to a lower end and sides of the bed floor by the drainage area.