Recessed Electrical Outlet Box with Adjustable Base Insert
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Solution Overview
Problem
Electrical boxes installed in exterior walls often become recessed due to varying wall finishes, and they require protection from water and contaminants, with existing solutions failing to provide consistent and effective mounting and sealing solutions.
Innovation Solution
An electrical box assembly with a box body and removable flanges, a base insert with spacers, and a surface cover, which includes a method of installation that secures electrical devices and protects them from contaminants through adjustable configurations and sealing features.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If electrical boxes are installed in exterior walls with varying wall finishes, then the electrical box becomes recessed to accommodate different siding types, but the mounting consistency and device protection become problematic
Solution Approach 1:
The electrical box is divided into a box body and a separate base insert that can be independently positioned. The base insert contains the electrical device aperture and mounting features, while the box body provides the outer structure. This segmentation allows the base insert to maintain consistent positioning relative to the electrical device regardless of wall finish variations, while the box body adapts to different installation environments.
Solution Approach 2:
A flange is introduced as an intermediary component between the box body and the wall surface. The flange can be adjusted or removed to accommodate different wall finishes (siding, stucco, brick, etc.) while maintaining the proper position of the box body relative to the finished wall surface, ensuring consistent electrical device mounting across various installation scenarios.
2Object-affected harmful factors
If electrical boxes are recessed in exterior walls, then protection from water and contaminants is required, but existing solutions fail to provide effective sealing
Solution Approach 1:
A weatherproof cover is provided that can be coupled to the box body to seal the electrical device aperture. The cover acts as a flexible protective shell that prevents water and contaminants from entering the electrical box while allowing for proper installation and maintenance access. The cover can be configured to fit different aperture sizes and provides reliable sealing across various installation conditions.
3Strength
If electrical devices are mounted in recessed boxes, then secure mounting is required, but varying wall finishes cause inconsistent mounting depths
Solution Approach 1:
The base insert is pre-assembled with the electrical device and positioning features before installation into the box body. This preliminary assembly ensures that the electrical device is properly positioned and secured relative to the base insert, and when the base insert is inserted into the box body, the mounting depth is automatically standardized regardless of the specific wall finish or installation location.
Data Source
AI summary
An electrical box assembly that includes a box body having a screw mount aperture and a base insert slidably coupled into the box body. The base insert may include a back wall, and the back wall may have an electrical device aperture therethrough, a box mounting screw aperture therethrough, a center mounting screw aperture therethrough, and a rear face. The rear face may include a center mounting plane at the center mounting screw aperture substantially parallel to the back wall and at least one spacer extending above the center mounting plane from the rear face at the box mounting screw aperture. Other particular implementations of an electrical box assembly may include at least two removable flanges coupled along a front side of the box body.