Vehicle Casing Drainage Structure for Compact Liquid Discharge
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional liquid discharge structures for vehicle casings, such as electrical junction boxes, require significant installation space due to their design with two tubular portions extending downwards, and they are inefficient in suppressing external liquid entry.
Innovation Solution
A liquid discharge structure featuring a plate-shaped bottom wall with a discharge opening, a blocking wall, and vertical walls that form a discharge path extending from the bottom wall, allowing liquid to be discharged in the front-rear direction while minimizing external liquid entry and reducing installation space by projecting only the necessary distance to the blocking wall's outer surface.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a liquid discharge structure with two tubular portions extending downwards is used, then liquid can be discharged from the casing, but the installation space required becomes large
Solution Approach 1:
The discharge path is configured to extend in the front-rear direction (longitudinal dimension) rather than only downwards (vertical dimension). The blocking wall and vertical walls create a three-dimensional discharge path that utilizes the front-rear space, allowing liquid to be discharged without requiring large downward extension, thus reducing installation space while maintaining discharge capability
Solution Approach 2:
The discharge structure is segmented into multiple functional components: a discharge opening in the bottom wall, a blocking wall with a specific shape, and vertical walls. These segments work together to create an effective discharge path that suppresses external liquid entry while enabling internal liquid discharge, optimizing space utilization
2Area of stationary object
If a simple discharge opening is provided in the bottom wall, then installation space is reduced, but external liquid can easily enter through the discharge opening
Solution Approach 1:
The blocking wall is provided with a specific shape that creates different local characteristics: it has a front surface that faces the front side and lateral surfaces that extend in the width direction. This local quality variation creates effective barriers against external liquid from different directions while maintaining a compact overall structure
Solution Approach 2:
The blocking wall acts as an intermediary structure between the discharge opening and the external environment. It provides a barrier that prevents external liquid from directly entering the discharge opening while still allowing the discharge path to function, thus mediating between the need for space efficiency and liquid protection
3Object-affected harmful factors
If a discharge path extending far from the bottom wall is used, then external liquid suppression is improved, but the projection distance increases installation space
Solution Approach 1:
The blocking wall has an asymmetric shape with a front surface facing the front side and lateral surfaces extending in the width direction. This asymmetric configuration provides effective liquid suppression in multiple directions without requiring uniform extension in all directions, optimizing the projection distance while maintaining suppression effectiveness
Solution Approach 2:
Instead of extending the discharge path uniformly in the downward direction, the structure utilizes the front-rear direction and width direction through the blocking wall and vertical walls. This dimensional change allows effective liquid suppression with minimal projection distance from the bottom wall
Data Source
AI summary
A liquid discharge structure includes a bottom wall with a discharge opening for liquid, the liquid being collected inside a casing which is configured to be installed in a vehicle, a blocking wall disposed outside the bottom wall so that the blocking wall is overlapped with the discharge opening in a plan view on the bottom wall and opposed to the bottom wall with a gap, and a pair of vertical walls extending towards the bottom wall from the blocking wall in a front-rear direction of the vehicle, the pair of vertical walls being opposed to each other in a width direction of the vehicle, wherein the pair of vertical walls is configured to define a discharge path together with the bottom wall and the blocking wall, the discharge path being opened towards both of a front and rear side of the vehicle.