Emergency Exit Light Rotatable Lamp Assembly with Flexible Conductor Routing
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Solution Overview
Problem
Existing emergency lighting units face challenges in providing adjustable and reliable illumination during power failures, particularly in ensuring that the lamp assembly can be securely mounted and rotated without conductor tangling or damage, and in providing a clear indication of the lighting unit's status.
Innovation Solution
The emergency lighting unit features a housing with separate compartments for internal components and a lamp assembly that includes a rotatable lamp head connected to a support with conductors routed through flexible arms to prevent tangling, along with a test button and light pipe for status indication, and a mounting bracket for secure attachment to various structures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the lamp assembly is made rotatable for adjustable illumination, then the adaptability of the lighting unit is improved, but the risk of conductor tangling and damage increases
Solution Approach 1:
The patent employs flexible conduits to route conductors through the rotatable lamp assembly. These flexible conduits allow the lamp head to rotate and adjust its illumination direction while preventing the conductors from tangling or suffering damage, thus resolving the contradiction between adjustability and reliability
Solution Approach 2:
The flexible conduits act as intermediaries between the fixed housing and the rotatable lamp head. They provide a protected pathway for the conductors, enabling relative movement between components while maintaining electrical connectivity and preventing direct contact between conductors and potential damage sources
2Adaptability or versatility
If the lamp assembly is made rotatable to illuminate different areas, then the adaptability is improved, but the device complexity increases
Solution Approach 1:
The lamp assembly is divided into separate rotatable components (lamp head and support structure), allowing independent rotation and adjustment. This segmentation enables the illumination direction to be changed without affecting the entire assembly, providing adaptability while keeping the complexity manageable through modular design
3Ease of manufacture
If separate compartments are used for internal components, then the ease of manufacture and assembly is improved, but the device complexity increases
Solution Approach 1:
The housing is divided into separate compartments that can be manufactured and assembled independently. This segmentation allows for easier manufacturing and assembly processes, as each compartment can be produced separately and then joined together, reducing the overall complexity of the manufacturing process
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 solution ensures adjustable and reliable illumination, secure mounting of the lamp assembly, and clear status indication, enhancing the functionality and durability of emergency lighting units.
Implementation Method 1
These fixtures typically have an emergency backup power system such as a battery that automatically turns on the emergency light when the primary power source is interrupted
Implementation Method 2
A lamp head (16) and lamp support (18) are provided. The lamp support (18) includes a stem (146), a first arm (148), and a second arm (150).
Data Source
AI summary
An emergency lighting unit includes a housing. The housing includes a base having a first portion and a second portion. A lamp assembly is rotatably connected to the housing and positioned in the lower portion. A cover is provided over the lamp assembly.