Vehicle Lamp Lens Holder With Elastic Locking Fixation
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Solution Overview
Problem
Existing vehicle lamps face challenges in easily and securely fixing lens units, often requiring separate metal fittings or clips which can lead to movement and displacement of the lenses.
Innovation Solution
A vehicle lamp design that includes a holder with a cylindrical support portion, a protrusion, and an elastically deformable locking portion, allowing the lens unit to be directly fixed and sandwiched between the locking portion and protrusion, with additional fixing portions secured to external members.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a metal fitting or clip is used to fix the lens unit to the holder, then the lens unit can be fixed, but the fixing process becomes complex and the lens unit may still move or displace
Solution Approach 1:
The locking portion is integrated into the holder as a unified structure, eliminating the need for separate metal fittings or clips. The locking portion includes a locking protrusion that engages with a locking groove on the lens unit, creating an integrated fixing mechanism that reduces component count while maintaining secure attachment
Solution Approach 2:
The locking portion is designed with elastic deformability, allowing it to dynamically adjust during assembly and operation. The elastic portion can deform radially to facilitate engagement and disengagement, providing a self-adjusting fixing mechanism that ensures reliable contact between the locking protrusion and locking groove
2Ease of manufacture
If separate metal fittings or clips are used to fix the lens unit, then the lens unit can be attached, but assembly and disassembly become difficult
Solution Approach 1:
The elastic portion of the locking mechanism allows for easy engagement by deforming radially during assembly, and easy disengagement by applying force to release the locking protrusion from the locking groove. This dynamic elasticity enables simple manual operation without requiring special tools or complex procedures
Solution Approach 2:
The locking mechanism is designed to be self-locking through the engagement of the locking protrusion and locking groove, eliminating the need for additional fastening steps or separate securing components. The structure automatically secures itself upon assembly while remaining easily reversible
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 lens unit is securely fixed, reducing movement and displacement, and the holder is firmly attached to external components, enhancing stability and ease of assembly compared to traditional methods.
Implementation Method 1
a locking portion provided in the support portion and elastically deformable in a radial direction of the support portion
Data Source
AI summary
A vehicle lamp (1) includes: a lens unit (55) having at least one lens; a holder (100) having a cylindrical support portion (101) to which the lens unit (55) is fixed inside, and a protrusion (101b) provided closer to a front end of the support portion (101) than the lens unit (55) and protruding inward of the support portion (101); a locking portion (110) provided in the support portion (101) and elastically deformable in a radial direction of the support portion (101); and a locked portion (120) provided in the lens unit (55) and locked to the locking portion (110), in which the locking portion (110) presses the locked portion (120) toward the front end of the support portion (101), and the lens unit (55) is sandwiched between the locking portion (110) and the protrusion (101b).