Removable Lamp Lens With Flip Pressing Frame and Snap-Fit Latch
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Solution Overview
Problem
Current lamp lenses face challenges with cumbersome mounting and dismounting methods, such as bolting and crimping, which can lead to deformation and increased manufacturing costs, affecting optical performance and efficiency.
Innovation Solution
A lamp design featuring a removable lens with a pressing frame that flips relative to the lamp body, utilizing a snap-fit structure and press-type latch mechanism to securely attach the lens without deformation, allowing for easy and efficient mounting and dismounting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a bolting method is used to secure the lens, then the lens can be firmly attached, but the mounting and dismounting operation becomes cumbersome and efficiency is low
Solution Approach 1:
The attachment mechanism is divided into two functional parts: a pressing frame that provides uniform pressure around the lens perimeter, and a latch structure that provides centralized locking. This segmentation allows the system to achieve firm attachment through distributed pressure while enabling easy operation through a single latch release point.
Solution Approach 2:
The pressing frame acts as an intermediary element between the latch structure and the lens. When the latch is engaged, it activates the pressing frame which then distributes the locking force uniformly around the lens perimeter, transforming a single-point latch action into distributed peripheral pressure for secure attachment.
2Strength
If a crimping method with pressing frame is used, then the lens can be pressed on the lamp body, but the middle of the lens is prone to deformation which affects optical performance
Solution Approach 1:
The pressing frame is designed with multiple pressing points distributed around the lens perimeter rather than a single centralized pressing point. This segmentation of the pressing force distributes the mechanical load around the lens edge, preventing concentration of stress at the lens center and thereby avoiding deformation that would affect optical performance.
Solution Approach 2:
The pressing frame applies localized pressure specifically at the peripheral region where the lens meets the lamp body, rather than applying force across the entire lens surface. This localized peripheral pressing secures the lens attachment while leaving the central optical region unaffected and free from deformation.
3Manufacturing precision
If reinforcing ribs and thickening pressing frame are added to prevent lens deformation, then lens deformation is reduced, but manufacturing costs increase
Solution Approach 1:
Instead of adding reinforcing ribs to the lens (which increases manufacturing complexity and cost), the pressing frame itself is segmented into multiple pressing zones that collectively provide the necessary support. This approach achieves lens shape stability through the distributed pressing mechanism rather than through additional lens structure.
Solution Approach 2:
The reinforcement function is extracted from the lens structure and transferred to the pressing frame mechanism. Rather than making the lens itself thicker or adding ribs to it, the pressing frame is designed to provide the necessary structural support and deformation prevention through its pressing action, separating the support function from the lens manufacturing process.
4Productivity
If a removable latch structure is used, then mounting and dismounting efficiency is improved, but the reliability of lens attachment may be compromised
Solution Approach 1:
The pressing frame is preliminarily positioned and spring-loaded before the latch engagement occurs. When the latch is actuated, it simply needs to release the pre-loaded pressing frame, which then immediately engages and secures the lens. This preliminary positioning ensures that the removable latch provides easy operation while the pre-positioned pressing mechanism ensures reliable attachment.
Solution Approach 2:
The latch structure incorporates curved or rounded engagement surfaces that provide gradual engagement and disengagement. This curvature allows the latch to smoothly transition between locked and unlocked states, ensuring reliable attachment when locked while maintaining easy operability. The rounded surfaces distribute contact forces and prevent stress concentration that could compromise reliability.
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 ensures the lens is securely attached without deformation, improving optical performance and lighting effect while simplifying the mounting and dismounting process, reducing the risk of lens damage and manufacturing costs.
Implementation Method 1
an elastic member located between the latch member and a bottom wall of the positioning groove, the elastic member connecting the latch member and the mounting seat, and the elastic member being configured for providing an elastic force to the latch member when the latch portion is switched from the retracted state to the extended state
Implementation Method 2
a snap-fit structure arranged between the lamp body and the pressing frame, the snap-fit structure fixing the lamp body and the pressing frame when the pressing frame closely fits with the upper edge of the lens
Data Source
AI summary
The present application provides a lamp with a removable lens, the lamp comprising: a lamp body provided with a mounting portion, a mounting groove being provided in the middle of the mounting portion; a lamp panel arranged on the mounting portion; a lens arranged on a top surface of the lamp panel, a connector being provided in the middle of the lens; a pressing frame, the pressing frame being pivotally arranged on the lamp body such that the pressing frame is capable of being flipped relative to the lamp body, the pressing frame being arranged around the mounting portion, and the pressing frame being in close fit with an upper edge of the lens so as to tightly press the lens on the lamp body; a snap-fit structure arranged between the lamp body and the pressing frame, the snap-fit structure fixing the lamp body and the pressing frame when the pressing frame closely fits with the upper edge of the lens; and a press-type latch structure arranged in the mounting groove, the press-type latch structure having a latched state in which the press-type latch structure snap fits with the connector, and an unlatched state in which the press-type latch structure releases the connector, and the press-type latch structure being switchable between the latched state and the unlatched state by means of pressing. This arrangement enables the lens to be removable and can further prevent the lens from deforming.