Wireless Lighting Device With Anti-Rattle Lens Clips
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing lighting devices with LED emitters face challenges in securely attaching the lens to the reflector, leading to potential rattling and noise during operation.
Innovation Solution
A lighting device design featuring a lens with teeth that engage with attachment clips on a reflector collar, utilizing spring arms to apply force and secure the lens, preventing rattling and noise by ensuring stable attachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the lens is attached to the reflector using conventional attachment methods, then the structure is simple, but the lens may rattle and produce noise during operation
Solution Approach 1:
The attachment mechanism is segmented into multiple independent components: a collar with multiple attachment clips (typically three), each clip having a clip arm that can independently engage with corresponding features on the lens. This segmentation allows each component to perform its specific function while collectively providing stable, noise-free attachment without requiring a complex monolithic structure.
Solution Approach 2:
The attachment clips act as intermediary elements between the lens and the reflector collar. Each clip arm serves as a mediator that transfers and distributes mechanical forces, ensuring the lens is securely held in place while accommodating thermal expansion and contraction. This intermediary mechanism prevents direct rigid contact that could cause rattling, instead using the clip arms as flexible intermediaries to absorb vibrations and maintain stable attachment.
2Reliability
If the lens is securely attached to prevent rattling, then operational stability is improved, but the attachment mechanism becomes more complex
Solution Approach 1:
The attachment mechanism employs local quality by concentrating the attachment function at specific discrete locations around the lens perimeter. The collar includes multiple attachment clips positioned at specific intervals, each engaging with corresponding features on the lens. This localized attachment approach provides stable, reliable fixation at critical points without requiring complex structures throughout the entire lens-reflector assembly, achieving reliability through strategically placed simple components.
Solution Approach 2:
The attachment clips incorporate dynamic characteristics through their spring arms, which can flex and adjust during thermal cycling and operation. The clip arms are designed to maintain constant contact pressure on the lens while accommodating dimensional changes, ensuring reliable attachment stability without rigid fixed structures. This dynamic capability allows the mechanism to adapt to operational conditions while maintaining secure attachment.
3Ease of manufacture
If conventional attachment methods are used, then manufacturing is simple, but the lens may become loose and noisy during operation
Solution Approach 1:
The attachment clips are pre-configured in the collar during manufacturing with predetermined engagement geometries and spring rates. The clip arms are pre-formed to engage with specific features on the lens, ensuring proper alignment and secure attachment upon assembly. This preliminary preparation of the attachment mechanism simplifies the final assembly process while guaranteeing noise-free operational performance, as the attachment geometry is already optimized during collar manufacturing rather than requiring complex adjustment during assembly.
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 design effectively prevents lens rattling and noise by securely attaching the lens to the reflector, enhancing operational stability and reducing noise interference.
Implementation Method 1
spring arms configured to apply force onto the lens to cause the ledge portions of the teeth of the lens to come in contact with the respective lip portions of the collar of the reflector
Data Source
AI summary
A lighting device may include a lens, an emitter configured to emit light through the lens, and a reflector. The reflector may define a cavity that extends from a first end to a second end of the reflector. The emitter may be received in the first end of the reflector, and the lens may be attached to the second end of the reflector. The lens may include teeth that extend from a rear surface of a rim of the lens. The reflector may include a collar at the second end, and the collar may include attachment clips that are configured to lock the teeth in place and retain the lens in attachment to the reflector.