Socket Housing With Oblique Drainage for Outdoor Charging
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Solution Overview
Problem
Electric vehicle charging sockets face safety hazards due to water accumulation, leading to metal oxidation and potential short circuits when charging outdoors, and existing drainage solutions are limited by space constraints and additional accessory requirements.
Innovation Solution
A socket housing design featuring a hollow cylindrical first wall portion with an obliquely extending drainage passage that intersects with the base portion, allowing water to drain outward without additional fittings, and additional drainage structures on terminal installation holes for a two-stage drainage system, optimizing water discharge and reducing assembly complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a drainage hole is formed on the terminal mounting base to discharge water, then water accumulation is prevented, but additional drainage fittings (such as corrugated pipes) are required which increase device complexity and are not always feasible due to space limitations
Solution Approach 1:
The drainage function is merged directly into the socket housing structure by forming a drainage cavity within the housing body and providing a drainage hole in the base portion. This eliminates the need for separate drainage fittings like corrugated pipes, reducing device complexity while maintaining effective water discharge capability.
Solution Approach 2:
The socket housing structure itself provides the drainage function through its integrated cavity and hole design, making the system self-sufficient for water discharge without requiring external drainage accessories. The housing serves both its protective function and its drainage function simultaneously.
2Reliability
If drainage fittings are added to enable water discharge, then water accumulation is prevented, but the installation space requirements increase which limits applicability in constrained environments
Solution Approach 1:
The drainage cavity is formed within the existing socket housing volume rather than adding external drainage components. This integrates the drainage function into the housing's existing spatial structure, avoiding additional volume requirements and enabling installation in space-constrained environments.
3Ease of manufacture
If the drainage hole opens towards the vehicle body side, then water can enter the vehicle body, but this may cause water accumulation issues and is not always feasible due to installation constraints
Solution Approach 1:
The drainage hole is positioned in the base portion and opens outward away from the vehicle body, utilizing the external space dimension rather than directing water toward the vehicle body. This spatial reorientation ensures effective water discharge while avoiding potential water accumulation issues near the vehicle body mounting area.
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 design effectively discharges water from the socket housing using gravity, enhancing safety performance by preventing water accumulation and reducing manufacturing costs and component complexity, while ensuring efficient drainage and avoiding adverse effects on terminals.
Implementation Method 1
The first drainage portion is a passage that extends obliquely from an inner root portion of the first wall portion to an outer root portion of the first wall portion
Data Source
AI summary
A socket housing includes a base portion and a first wall portion formed as a hollow cylindrical wall that protrudes continuously from a first side of the base portion. The first wall portion has a first drainage portion intersecting the base portion and opening outwards. The first drainage portion is a passage that extends obliquely from an inner root portion of the first wall portion to an outer root portion of the first wall portion.