Illumination Lamp Guide Locking Mechanism
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Solution Overview
Problem
Existing illumination lamps are prone to separation from their design portions when an unexpectedly large moment is applied, due to inadequate locking mechanisms.
Innovation Solution
The illumination lamp features a frame-shaped body with a first guide portion and a locking portion, and a function portion with a light emitting portion and a guided portion, where the guided portion is engaged with the guide portion to regulate posture changes around a predetermined axis, and a locked portion is sandwiched by the locking and contact portions to prevent separation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a simple locking mechanism is used to attach the function portion to the bezel, then the device complexity is reduced and ease of manufacture is improved, but the reliability of the connection deteriorates when large moments are applied
Solution Approach 1:
The locking mechanism is divided into multiple independent elements: a locking portion with a locking protrusion, a locked portion with a corresponding recess, and a guide portion with guide protrusions. This segmentation allows each element to perform its specific function while collectively providing robust connection reliability under moment loads without excessive overall complexity.
Solution Approach 2:
The locking mechanism incorporates multi-dimensional constraints: the locking protrusion engages in the locked recess providing primary attachment, while additional guide protrusions engage with guide recesses to constrain movement in orthogonal directions. This multi-dimensional engagement prevents separation under moment loads by distributing forces across multiple contact points in different spatial dimensions.
2Ease of operation
If the function portion is allowed to move freely during installation, then the ease of operation is improved, but the manufacturing precision of the final position deteriorates
Solution Approach 1:
The guide portion with guide protrusions and guide recesses is designed to automatically align the function portion with the bezel during the installation process. This preliminary alignment action occurs before the locking engagement is finalized, ensuring that the function portion is correctly positioned without requiring high precision manual alignment from the installer.
Solution Approach 2:
The guide portion acts as an intermediary mechanism between the installer's action and the final locked position. The guide protrusions engage with the guide recesses to mediate the movement and positioning process, automatically guiding the function portion into its correct final position while allowing freedom of movement during installation.
Data Source
AI summary
An illumination lamp includes: a frame-shaped body provided with a first guide portion; and a function portion provided with a light emitting portion emitting light and a first guided portion. The first guided portion is engaged with the first guide portion in a state where the function portion is installed in the frame-shaped body, so that a change in the posture of the function portion with respect to the frame-shaped body is regulated around a predetermined axis.