Dual Strobe Mounting Bracket With Enclosed Wire Cavity
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Solution Overview
Problem
Existing mounting brackets for dual strobe emergency notification units do not accommodate larger designs and fail to meet UL requirements for wire protection and compliance with various electrical box types, lacking a sufficient enclosure for power wires.
Innovation Solution
A mounting bracket with a rectangular back plate extending between upper and lower sections, providing a cavity for the strobes and an aperture for wire connections, which includes fastening bores for versatile attachment to different electrical boxes and forms an enclosure for power wiring, ensuring compliance with UL guidelines.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a universal mounting plate is used to mount alarm notification devices to multiple types of electrical boxes, then ease of installation and adaptability are improved, but the mounting plate cannot accommodate larger dual strobe designs and does not provide sufficient wire protection meeting UL requirements
Solution Approach 1:
The mounting bracket is divided into distinct functional segments: a back plate for electrical box engagement, side walls forming an enclosure, and a mounting face for device attachment. This segmentation allows each portion to be optimized for its specific function while working together as a complete assembly that satisfies both adaptability and UL compliance requirements
Solution Approach 2:
The mounting bracket is designed with a back plate configured to engage multiple types of electrical boxes (single-gang, double-gang, etc.), making it a universal mounting solution. Simultaneously, it provides wire protection enclosure and supports various notification device configurations, achieving multi-functionality that satisfies both adaptability and safety requirements
2Strength
If alternative mounting brackets use the wall to form part of the enclosure for power wires, then support for the lights is improved, but UL guidelines are not satisfied regarding wire enclosure
Solution Approach 1:
The mounting bracket merges the support function and wire enclosure function into a single integrated structure. The back plate provides structural support for the notification device while the side walls extend to form a complete enclosure for power wires, combining both functions without relying on the wall alone
3Area of stationary object
If larger dual strobe devices are mounted on standard electrical boxes, then the notification coverage and visibility are improved, but standard mounting brackets cannot accommodate the larger design
Solution Approach 1:
The mounting bracket extends in multiple dimensions to accommodate larger dual strobe devices. The side walls extend outward from the back plate to provide sufficient clearance and mounting surface area, while the overall structure maintains compatibility with standard electrical box dimensions, effectively using three-dimensional space to resolve the size compatibility issue
Data Source
AI summary
A mounting bracket for attaching an plurality of alarm notification devices to an electrical box. The mounting bracket includes a first mounting section to receive a first alarm notification device and a second mounting section to receive a second alarm notification device. The second mounting section defines an enclosure which houses the electrical wires connected between the alarm notification devices.