Weatherproof Electrical Box with Integral Siding Block and Drainage Channel
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Solution Overview
Problem
Conventional outdoor electrical FS boxes require cutting a hole in the substrate for installation, leading to costly repairs, potential damage to insulation and wiring, and difficulty in achieving a watertight seal against rain penetration.
Innovation Solution
A weatherproof electrical box assembly with an integral siding block and tamperproof cover that channels water away from the box, eliminating the need for a large substrate hole and accommodating large electrical plugs, while providing a secure and weatherproof seal with cord inserts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a large hole is cut in the substrate for installing a conventional electrical box, then the electrical box can be mounted on the building exterior, but it causes damage to insulation, requires costly repairs, and creates difficulty in achieving a watertight seal
Solution Approach 1:
The electrical box assembly is divided into separate functional components: the electrical box itself, an integral siding block with channel, and a removable cover assembly. This segmentation allows the siding block to interface with building siding while the electrical box remains protected, eliminating the need for large substrate cuts and enabling proper water drainage pathways.
Solution Approach 2:
The integral siding block acts as an intermediary element between the electrical box and the building substrate. It provides a mounting interface for building siding and creates a channel system that directs water away from the electrical box, thereby preventing water penetration without requiring direct attachment to the substrate that would compromise insulation.
2Reliability
If caulk is applied around the electrical box to seal against rain penetration, then water sealing is attempted, but it is difficult to obtain a perfect seal and rain or water can still seep behind the siding
Solution Approach 1:
The sealing function is extracted from the installation process itself and replaced by a passive drainage channel system. Instead of relying on caulk to seal around the electrical box, the integral siding block creates a channel that actively directs water away from the box and behind the siding to safe drainage points, eliminating the need for imperfect seals.
Solution Approach 2:
Rather than trying to prevent water from reaching the area around the electrical box through sealing, the design converts the potential harmful effect of water into a beneficial drainage pathway. The channel system captures water that would otherwise be a problem and directs it away from the electrical box in a controlled manner.
3Ease of operation
If a conventional electrical box is used without a cover, then access to outlets is convenient, but large electrical plugs cannot be accommodated and the box is not protected when not in use
Solution Approach 1:
The cover assembly is designed to be removable and replaceable, allowing the electrical box to dynamically adapt between being covered for protection and being open for access. The interchangeable cover system enables the structure to change its state based on operational needs, accommodating both security/protection requirements and access convenience.
Solution Approach 2:
The cover assembly serves multiple functions: it protects the electrical box and its contents when not in use, provides a mounting surface for signage or decorative elements, and includes openings that can accommodate various cord sizes. This multi-functionality replaces the need for multiple different box types.
4Ease of operation
If the electrical box is left open for access, then outlets are easily accessible, but the box is vulnerable to tampering and weather damage when not in use
Solution Approach 1:
The cover assembly transitions between closed and open states based on operational requirements. When closed, it provides tamperproof security through hasp and latch mechanisms and protects against weather. When opened, it allows full access to outlets and electrical components, dynamically adapting to user needs.
Solution Approach 2:
The hasp and latch mechanism provides self-contained security functionality, allowing the cover to be secured without additional locking hardware or complex mechanisms. The design enables users to independently secure or access the electrical box as needed.
Data Source
AI summary
A weatherproof while-in-use electrical box assembly adapted for use on buildings that include a siding exterior or that will be finished with siding. The weatherproof electrical box assembly includes an electrical box with an integral siding block and a cover assembly adapted to receive large electrical plugs. The integral siding block provides a channel around the electrical box for accommodating siding. The channel enables the electrical box assembly to channel water to the bottom of the box and exterior of the siding where it will drip harmlessly to the ground. The cover assembly includes cord openings that enable closing of the cover plate while electrical cords are connected to electrical outlets within the electrical box. Cord inserts are provided for closing the cord openings when they are not in use. The tamperproof cover includes an arm adapted to accept a padlock for securing the cover to the electrical box.