Portable Work Light EMI Filter and Shock Absorption
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing portable work lights do not meet military specifications for electromagnetic interference (EMI) emissions, are not impact-resistant, and lack efficient assembly and energy efficiency for mobile military shelters.
Innovation Solution
A portable, reduced-emissions work light with an integrated ballast and filter assembly, shock-absorbing components, and snap-together design, which includes a bulb shield, cylindrical shock-absorbing plug, and a handle for easy manipulation, operates on multiple voltage inputs and provides a minimum of five-foot candles of light while minimizing EMI emissions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-generated harmful factors
If existing portable work lights are used, then they provide illumination, but they do not meet military specifications for electromagnetic interference (EMI) emissions
Solution Approach 1:
An EMI filter is introduced as an intermediary component between the ballast and the fluorescent bulb. This filter actively reduces electromagnetic interference emissions while allowing the light to function, thus resolving the contradiction between providing illumination and meeting EMI specifications.
Solution Approach 2:
The EMI filter is extracted as a separate, identifiable component within the housing that specifically addresses the harmful EMI emissions. This allows the harmful electromagnetic factors to be isolated and reduced without affecting the overall lighting function.
2Strength
If existing portable work lights are used, then they provide illumination, but they are not impact-resistant
Solution Approach 1:
Shock-absorbing components are incorporated into the design beforehand to protect the bulb and internal components from impact damage. This cushioning allows the light to maintain its illumination capabilities while being resistant to drops and sudden impacts.
Solution Approach 2:
The housing and internal components are designed with flexible or cushioning elements that can absorb impact forces. This flexibility protects the fragile bulb and electronic components while maintaining the structural integrity needed for portable use.
3Weight of moving object
If existing portable work lights are used, then they provide illumination, but they are heavy and lack convenient handling
Solution Approach 1:
A handle is integrated into the housing design to counterbalance the weight of the light. This ergonomic handle makes it easier to hold and maneuver the light, offsetting the perceived heaviness and improving ease of operation.
Solution Approach 2:
The handle is merged with the housing structure rather than being a separate component. This integration reduces overall weight while providing the ergonomic benefits of a built-in grip for convenient handling.
4Ease of manufacture
If existing portable work lights are used, then they provide illumination, but they lack easy assembly and disassembly
Solution Approach 1:
The work light is divided into separate modular components including the housing, ballast, EMI filter, and bulb. These segments can be easily assembled and disassembled using snap-together connections, simplifying manufacturing and maintenance while reducing overall complexity through standardization.
Solution Approach 2:
The housing serves multiple functions: it protects internal components, provides structural support, and includes integrated features like the handle and EMI filter mounting. This multi-functionality reduces the number of separate parts needed, easing assembly while maintaining necessary complexity for protection and EMI reduction.
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 provides a lightweight, impact-resistant, and energy-efficient work light that meets military EMI specifications, ensuring safe operation and easy maintenance, while reducing electromagnetic interference and enhancing illumination in mobile military shelters.
Implementation Method 1
an integrated ballast and filter assembly. The integrated ballast and filter assembly is located within the housing and operatively connected to the bulb for providing voltage to the bulb and reducing emissions generated by the work light
Implementation Method 2
a cylindrical shock-absorbing plug is positioned within the bulb shield and engages a free end of the bulb tube to further protect the bulb from damage
Data Source
AI summary
A reduced emissions work light that includes a bulb having an elongated bulb tube, a handle adjacent the bulb and adapted for being gripped by a user to manipulate the work light, an emissions containment housing positioned adjacent the bulb tube, and an integrated ballast and filter assembly. The integrated ballast and filter assembly is located within the housing and operatively connected to the bulb for providing voltage to the bulb and reducing emissions generated by the work light.