Socket Isolation Cavity Structure to Prevent Wet-Surface Shock
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Solution Overview
Problem
Existing outdoor AC sockets are prone to electrical shock risks when soaked in water or sprayed with water due to water stains forming conductive pathways on the socket surface.
Innovation Solution
The socket design incorporates isolation cavities with spaced cavity walls and outlets to create air isolation gaps, ensuring jacks are insulated and isolated, with outlets for discharging water, preventing electrical contact between water stains and internal components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the socket is designed with traditional waterproofing methods (sealing boxes, waterproof rubbers), then water vapor entry is reduced, but water stains still form conductive pathways on the surface when soaked or sprayed
Solution Approach 1:
The socket internal space is divided into multiple isolated cavities, each containing a jack. The cavity walls are spaced apart to create air isolation gaps, segmenting the conductive path that water stains might form. This segmentation prevents water stains from creating continuous conductive pathways between different jacks, thereby eliminating the electrical shock risk while maintaining waterproof performance.
Solution Approach 2:
Air isolation gaps are introduced as intermediary spaces between the cavity walls and jacks. These air gaps act as insulating mediators that break the conductive path between water stains on the surface and the internal electrical components. The air medium provides electrical insulation, preventing harmful current flow even when water is present on the socket surface.
2Reliability
If the cavity walls are spaced apart to create air isolation gaps, then electrical insulation is improved, but the device complexity increases
Solution Approach 1:
The cavity walls serve dual functions: they form the boundaries of isolation cavities for electrical insulation, and their spaced arrangement simultaneously creates air isolation gaps. By merging these two functions into a single structural element, the design achieves electrical insulation without requiring separate insulating components, thereby reducing overall device complexity while maintaining reliable electrical insulation.
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 prevents electrical shocks by isolating jacks with air gaps, ensuring safety even when the socket is wet, by discharging water through outlets and maintaining insulation.
Implementation Method 1
the jacks, between the two cavity walls of the corresponding isolation cavities, are each insulated and isolated by the air isolation gap
Implementation Method 2
when the socket is soaked in water or sprayed with water resulting in the water entering the jack, the water in the isolation cavities is discharged by the outlets
Data Source
AI summary
An anti-electric shock socket including a housing provided therein with shrapnel insulated and isolated from each other, jacks corresponding to the shrapnel respectively, and isolation cavities isolated from each other, the isolation cavities correspond to the jacks one to one, each isolation cavity has cavity walls spaced apart from each other along an extension direction of the jacks, each jack passes through the cavity walls of the corresponding isolation cavity, and outlets communicated with the corresponding isolation cavities are provided on the housing. Each jack forms an air isolation gap between the cavity walls of the corresponding isolation cavity, when the water enters the jacks, the water in the isolation cavities is discharged through the outlets, so each jack is insulated and isolated by the air isolation gap, and water stains on a surface of the housing will not conduct electricity with the shrapnel.