Vehicle Cargo Light with Angled LED Array
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Solution Overview
Problem
Lighting solutions for vehicle cargo compartments, such as semi-trailer trucks, face challenges in surviving tight cargo packing, fitting within existing interiors, and providing illumination without shadows, as existing solutions often obstruct the cargo or are damaged by it.
Innovation Solution
A light emitting device comprising an array of LEDs oriented at 45 degrees, mounted above the top rail of a vehicle cargo compartment, with a mounting extension and vertical support that positions the LEDs to direct light inward without occlusion, using a light transmitting cover and various fastening methods to secure the device to the compartment's surfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a light fixture is mounted within the vehicle cargo compartment interior, then illumination is provided, but the fixture obstructs cargo space and is damaged by tight cargo packing
Solution Approach 1:
The light fixture is mounted on the exterior surface of the top rail rather than within the cargo compartment interior, utilizing the external dimension of the vehicle structure. This positioning allows the light to illuminate the cargo area through strategic angling (45-degree orientation) while completely avoiding occupation of cargo space and protection from cargo damage during tight packing scenarios.
2Illumination intensity
If a light fixture is mounted on the top rail, then illumination without obstruction is achieved, but the fixture may be damaged by cargo handling
Solution Approach 1:
The light fixture is secured to the top rail using fastening mechanisms (screws, clips, or adhesive) that pre-establish a rigid connection before cargo handling occurs. This preliminary securing creates resistance against forces generated during cargo loading and handling, preventing the light fixture from being dislodged or damaged while maintaining its optimal 45-degree illumination angle.
3Illumination intensity
If LEDs are oriented at 45 degrees, then light is directed inward without occlusion, but the mounting structure becomes more complex
Solution Approach 1:
The mounting structure integrates multiple functions into a single unified assembly: the bracket provides both mechanical attachment to the top rail and precise 45-degree angular positioning of the LED array. By merging the positioning function into the mounting bracket itself rather than requiring separate adjustment mechanisms, the structure achieves the required light direction while minimizing overall complexity.
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 effective illumination within the cargo compartment, ensuring light reaches the cargo area without shadows or obstruction, while being securely attached to withstand the rigors of cargo handling and packing.
Implementation Method 1
A light emitting device comprises: an array of LEDs
Data Source
AI summary
In one embodiment, a linear light emitting device comprises one or more linear extrusions collectively comprising a horizontal mounting extension, an array of light emitting diodes, a vertical support, and a linear support platform. In one embodiment, the light emitting device comprises a mounting extension that extends from the light emitting device for the bottom surface of the mounting extension to be mounted to a top rail of a vehicle cargo compartment (such as a trailer or cargo compartment of a truck) and a vertical support that positions a linear array of light emitting diodes above the top rail and oriented at a first orientation angle, such as 45 degrees, to the bottom surface of the horizontal mounting surface. In one embodiment, the linear light emitting device is mounted between two roof bows or below one or more roof bows.