Rotating Lens Assembly for Non-Destructive LED Lamp Maintenance
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing LED retrofit lamps face challenges in easy assembly and disassembly, as methods like fastening bolts damage components, glue makes disassembly difficult, and snap-fit connections can be forceful and damaging.
Innovation Solution
The design features a housing with a partitioned cavity system, where the lens assembly can be rotated to engage and disengage from the driver housing using supporting legs and stop portions, allowing for easy assembly and disassembly without damaging components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If fastening bolts are used to fix the lens on the heat sink, then the lens can be securely fixed, but the optical effects of the lens are affected due to drilling holes
Solution Approach 1:
The fixing mechanism is segmented into multiple independent supporting legs (first supporting legs and second supporting legs) that distribute the fixing function across multiple points, eliminating the need for a single drilled hole through the lens. This allows the lens to be secured without compromising its optical integrity.
Solution Approach 2:
The harmful drilling operation is extracted and replaced by an alternative fixing approach using supporting legs that engage with stop portions. This removes the damaging element (drilling) while maintaining the essential function (fixing the lens).
2Strength
If glue is used to connect the lens or driver housing, then the components can be fixed together, but the connection cannot be removed when disassembly is needed
Solution Approach 1:
The connection mechanism transitions from a static, permanent bond (glue) to a dynamic, reversible engagement system. The supporting legs can be moved between engaged and disengaged states with respect to the stop portions, allowing the connection to adapt between fixed and removable states as needed.
Solution Approach 2:
The supporting legs are pre-configured with the capability to engage with the stop portions, creating a built-in release mechanism. This preliminary design enables future disassembly without requiring destructive forces or special tools.
3Ease of operation
If snap-fit connection is employed to fix the driver housing on the heat sink, then the components can be easily connected, but violence must be used for disassembly which damages the driver housing or lens
Solution Approach 1:
The stop portions act as intermediary elements between the supporting legs and the housing structure. This intermediary mechanism distributes the disassembly force through the supporting legs rather than directly onto the lens or driver housing, preventing damage during the release process.
Solution Approach 2:
The supporting legs are designed to automatically engage with and disengage from the stop portions through their own structural characteristics. The first supporting legs can rotate to move between positions, and the second supporting legs are pushed to withdraw, enabling self-contained assembly and disassembly without external force.
Data Source
AI summary
An illuminating device includes a housing, a light-emitting assembly and a driver, wherein the housing includes a first and second cavity and a partition plate, wherein an open end in the first and second cavity may accommodate the light-emitting assembly and the driver, respectively. A lens and a driver housing further respectively mounted thereon wherein the lens and driver housing includes a first supporting leg and a second supporting leg, respectively. The second supporting leg is engaged with a first stop portion formed on an inner wall of the housing, wherein the first supporting leg extends in a through hole in the partition plate to move between a first and a second position deviating circumferentially from the first position, the first supporting leg is locked at the first position between the partition plate and a second stop portion formed in an inner wall of the housing.