Reversible Light Engine Hinge with Safety Stopper
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Solution Overview
Problem
Existing floodlight systems lack a safe and efficient mechanism for replacing and servicing the light engine, which is crucial for maintaining performance and safety.
Innovation Solution
A replaceable and reversible light engine with a positive locking mechanism and safety stopper, allowing for easy field replacement and servicing while ensuring safety and ease of access.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of repair
If the light engine is made replaceable and reversible for easy servicing, then ease of repair is improved, but device complexity increases due to additional locking and safety mechanisms
Solution Approach 1:
The light engine is divided into separable subassemblies (light source assembly and driver assembly) connected by hinge pins, allowing independent replacement of each module without replacing the entire unit, thus improving ease of repair while managing complexity through modular design
Solution Approach 2:
Positive locking features and safety stoppers are pre-configured in the hinge mechanism to prevent accidental opening or improper assembly, ensuring safety is built-in from the design stage rather than requiring additional operational steps, thereby improving ease of repair without proportionally increasing complexity
2Reliability
If safety stoppers and positive locking mechanisms are added to prevent accidental opening, then reliability is improved, but device complexity increases
Solution Approach 1:
The safety stopper and positive locking features are integrated into the hinge pin and mounting arm structure itself, combining safety functions with the existing mechanical connection components rather than adding separate safety devices, thus improving reliability while minimizing the increase in device complexity
Solution Approach 2:
The positive locking mechanism automatically engages when the light engine is properly assembled, providing self-verifying safety without requiring external monitoring or additional operational steps, and the hinge design allows automatic disengagement when proper force is applied for intentional opening, making the safety system self-regulating
Data Source
AI summary
A light engine for a floodlight includes a first subassembly for light emitting diodes (LEDs) and a second subassembly providing a housing for a driver. The first subassembly includes upper and lower mounting hinge arms at one side and the second subassembly includes upper and lower left hinge pins respectively extending from upper and lower left arms and upper and lower right hinge pins respectively extending from upper and lower right arms. The first subassembly can be mounted by the upper and lower mounting hinge arms on either side of the second subassembly, creating a reversible opening for access to the driver. The upper and lower mounting hinge arms can have a shape with respect to the hinge pins to provide a safety stopper. The lower mounting hinge arm can include a recess that catches against a lower arm to prevent automatically closing once in an open position.