Active Cover Plate With Spring Clips For Outlet Adaptability
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Solution Overview
Problem
Existing electrical cover plates face challenges in compatibility with various outlet and switch configurations due to variance in screw terminal positions, making it difficult to create a single active cover plate that fits most outlets and switches.
Innovation Solution
The development of an active cover plate with spring clips and conducting strips that can be configured to interface with different screw terminals, allowing power extraction and integration of electrical devices like LEDs, motion detectors, and network devices, while using insulating tabs to prevent arcing and external contact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single active cover plate design is used, then device complexity is reduced and ease of manufacture is improved, but adaptability to different outlet and switch configurations deteriorates due to variance in screw terminal positions
Solution Approach 1:
The cover plate incorporates spring clips that can dynamically adjust their position and orientation to accommodate different screw terminal configurations. The spring mechanism allows the clips to flex and adapt to varying distances and angles between terminals, enabling a single cover plate design to fit multiple outlet and switch types without requiring custom configurations for each scenario.
2Adaptability or versatility
If spring clips with conducting strips are used to extract power from various terminal positions, then adaptability is improved, but reliability deteriorates due to potential arcing and external contact
Solution Approach 1:
Insulating tabs are introduced as intermediary elements between the conducting strips and the external environment. These tabs physically separate the conducting strips from direct exposure to arcing hazards and external contact, while still allowing the conducting strips to maintain electrical connection with the screw terminals. This mediator structure enables the system to achieve both adaptability in power extraction and reliability in electrical safety.
3Reliability
If insulating tabs are added to prevent arcing and external contact, then reliability is improved, but device complexity increases
Solution Approach 1:
The insulating tabs are merged with the spring clips to form an integrated component structure. Rather than being separate additional parts, the insulating tabs are incorporated into the spring clip assembly itself, creating a unified element that provides both mechanical flexibility and electrical insulation. This merging reduces the overall component count and simplifies manufacturing while maintaining the reliability benefits of 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
Enables a versatile active cover plate that can be installed on various outlets and switches without hardwiring, providing reliable power supply and integrating additional electrical functions while ensuring safety through insulation and preventing arcing.
Implementation Method 1
spring clips and conducting strips that can be configured to interface with different screw terminals, allowing power extraction
Implementation Method 2
using insulating tabs to prevent arcing and external contact
Data Source
AI summary
In one example, a cover plate may include a face plate with at least one outlet aperture, a back plate abutting the back of the face plate, an electric load between the face plate and the back plate, and at least one prong that extends from the face plate to a free end. The prong may be configured to interface with a terminal on the side of an outlet receptacle body and may include any or all of the following: an insulated portion and/or an electrical contact. The prong may resiliently deflects outward when interfacing with the terminal and may deflect with a first resistance prior to contacting a wall and with a second resistance that is greater than the first resistance when the prong contacts the wall. The cover play may also include at least one conductor electrically connecting the prong to the electric load.