Shallow GFCI Receptacle Layout With Vertical Latching Assembly
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional circuit interrupting devices, such as GFCIs and circuit breakers, require substantial space due to their latching mechanisms, limiting the compactness of electrical receptacles and reducing available space for other features.
Innovation Solution
A compact design incorporating a symmetrical placement of sensing cores and a latching mechanism with a lifting shelf, slide mechanism, and cam surface to efficiently utilize space within the device housing, allowing for more compact receptacles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional latching mechanisms are used in GFCI devices, then reliable circuit interruption is achieved, but the device occupies substantial physical space within the receptacle housing
Solution Approach 1:
The patent reorients the solenoid assembly from a conventional horizontal arrangement to a vertical arrangement with the solenoid axis perpendicular to the circuit board. This dimensional change allows the latching mechanism to operate in the vertical dimension rather than horizontal, significantly reducing the horizontal footprint and allowing shallower receptacle designs while maintaining all necessary latching and sensing functions
Solution Approach 2:
The patent integrates multiple functions into nested components: the sensing cores are positioned within the same housing as the latching mechanism, the carriage integrates contact advancement with latching engagement, and the intermediate collar provides both electrical connection and mechanical coupling functions. This nesting eliminates the need for separate dedicated spaces for each function, reducing overall device volume
2Adaptability or versatility
If substantial space is allocated for latching mechanisms and protection circuitry, then device functionality is ensured, but space for other components and features is reduced
Solution Approach 1:
The patent merges the sensing function and latching function into a single integrated assembly. The sensing cores detect ground faults and arc faults, and this detection directly actuates the latching mechanism through the solenoid and carriage system. By combining these functions in one compact vertical assembly rather than separating them into different spatial zones, the patent reduces the total area occupied while maintaining both protection and latching capabilities
Solution Approach 2:
The carriage serves multiple functions: it advances the movable contacts to form electrical connection, it engages with the latching mechanism, and it provides structural support for the sensing cores. The intermediate collar provides both electrical connection between contacts and mechanical coupling for the latching mechanism. This multi-functionality eliminates the need for separate dedicated components, freeing up space for additional features
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 enables shallower electrical receptacles with integrated ground fault protection, providing additional space for other components while maintaining effective circuit interruption functionality.
Implementation Method 1
a solenoid having a central axis perpendicular to the first plane
Implementation Method 2
The slide mechanism includes a cam surface to transform a downward force to a translational force applied to the coupled lifting shelf
Implementation Method 3
The lifting shelf includes a latching portion. The slide mechanism includes a cam surface to transform a downward force to a translational force applied to the coupled lifting shelf. The reset plunger includes an intermediate collar configured to engage to the latching portion of the lifting shelf
Data Source
AI summary
A device may include a housing including a face plate. A device may include a plurality of sensing cores each configured to receive a current flow through a center cavity, the current flow defining a current flow direction through the center cavity, wherein the current flow direction is parallel to the face plate.