Electronic Component Unit Housing with Tilted Drain Surfaces
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Solution Overview
Problem
Conventional electronic component units face challenges in effectively draining water that enters their housing, leading to potential damage from accumulated moisture, despite having waterproof structures.
Innovation Solution
The electronic component unit incorporates a housing design with tilted surfaces and strategically placed drain holes at the bottom, dividing the housing space into sections to facilitate water drainage away from the connector fitting parts, ensuring water can flow out through the drain holes located at the lower ends of these surfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a waterproof structure is implemented to prevent water entry, then water resistance is improved, but water accumulation inside the housing may occur due to installation angles
Solution Approach 1:
The housing space is divided into multiple divided spaces by wall-shaped parts that protrude from the bottom. Each divided space has its own drain hole formed at the lower end of the tilted surface, ensuring that water can be drained from each section independently regardless of the installation angle of the housing.
Solution Approach 2:
A tilted surface is formed on the bottom of the housing, creating a slope that directs water toward the drain holes. This dimensional change from a flat bottom to a tilted surface enables water to flow downward under gravity toward the drainage locations at the lower ends of the tilted surfaces.
2Productivity
If drain holes are provided in plurality at corners of the bottom, then water drainage efficiency is improved, but structural complexity increases
Solution Approach 1:
Multiple drain holes are provided at the corners of the bottom, with each drain hole serving a specific divided space. This segmentation of drainage functions allows water to be discharged from multiple locations simultaneously, improving overall drainage efficiency without requiring complex internal drainage channels.
3Reliability
If the housing space is divided into paired divided spaces with tilted surfaces, then water drainage capability is improved, but manufacturing complexity increases
Solution Approach 1:
The tilted surfaces are configured with asymmetric orientations in paired divided spaces. The first tilted surfaces are disposed along the first direction on opposite sides of the wall-shaped part and are tilted toward opposite directions, while the second tilted surfaces are disposed along the second direction and tilted toward opposite directions. This asymmetric configuration optimizes water drainage for various installation angles while maintaining a relatively simple monolithic housing structure that can be manufactured as a single piece.
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 design effectively drains water from the housing, preventing it from accumulating near the connector fitting parts and enhancing the unit's ability to manage water entry due to installation angles, thereby maintaining the waterproof integrity and increasing the structural stiffness of the component unit.
Implementation Method 1
a first tilted surface tilted from the wall-shaped part toward the lower side in the vertical direction... a drain hole formed at a lower end of the first tilted surface
Data Source
AI summary
An electronic component unit includes a housing. The housing includes a housing space that houses an electronic component. The housing space is divided into a plurality of divided spaces by a central wall-shaped part protruding from a bottom of the housing space. The bottom defines a lower side of the housing space in the vertical direction. The central wall-shaped part has a connecting portion-fitting part to which a connecting part of an electric wire is fitted. For each of the divided spaces, the bottom has a short side direction tilted surface that is tilted from the central wall-shaped part toward the lower side in the vertical direction in a state where the housing is installed at an installation position, and a drain hole formed at a lower end of the short side direction tilted surface in the vertical direction.