Lighting Device Dowel Pin Alignment and Fastening
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Solution Overview
Problem
Existing lighting devices with semiconductor light source modules and optics do not allow for simple exchange or adjustment of the semiconductor light source module without disassembling other components.
Innovation Solution
A lighting device design featuring a semiconductor light source module and optics mounted on a common carrier using dowel pins that protrude through matching bores, enabling easy exchange and adjustment of the module without disassembling other parts, with dowel pins serving as both alignment and fastening elements, and additional fastening means ensuring secure attachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the optics and semiconductor light source module are rigidly mounted on a common carrier, then the structural stability is improved, but the ease of exchange and adjustment of the semiconductor light source module deteriorates
Solution Approach 1:
The lighting device is divided into separable components: the optics assembly and the semiconductor light source module can be independently removed from the common carrier. The optics can be detached by removing the retaining nut from the adjustment screw, and the semiconductor light source module can be removed by unscrewing the fixing screw, allowing easy exchange and adjustment while maintaining structural stability during operation
Solution Approach 2:
The fixing mechanism uses adjustable screws (adjustment screw with retaining nut and fixing screw) that allow the optics and semiconductor light source module to be dynamically adjusted and repositioned. The threaded connections enable fine-tuning of positions while maintaining stable fixation once adjusted, resolving the contradiction between rigidity and adjustability
2Ease of operation
If multiple separate fastening components are used to mount optics and semiconductor light source module, then the ease of adjustment is improved, but the device complexity increases
Solution Approach 1:
The adjustment screw and retaining nut are integrated into a single adjustment mechanism, where the adjustment screw passes through the common carrier and optics, and the retaining nut secures it in place. This combined mechanism provides both adjustment capability and fixation function, reducing the number of separate components needed while maintaining ease of operation
Solution Approach 2:
The threaded screw and nut mechanism serves multiple functions: it acts as both an adjustment mechanism for positioning the optics and a fastening mechanism for securing it. The same type of screw connection is used for both the optics adjustment and the semiconductor light source module fixation, providing a universal, simple fastening system throughout the device
Data Source
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AI summary
The invention relates to a lighting device with a semiconductor light source module (1), an optical unit (2), and a common support (3) for the semiconductor light source module (1) and the optical unit (2). The optical unit (2) is mounted on a front face (31) of the support (3) and has at least one dowel (23) which extends into a fitting bore (121) in the semiconductor light source module (1), wherein - the semiconductor light source module (1) rests on a support (3) rear face (32) opposite the front face (31), - the at least one dowel (23) protrudes through an opening (34) in the support (3) and extends into the fitting bore (121) of the semiconductor light source module (1), and - the at least one dowel (23) forms a shoulder (230) which rests on a semiconductor light source module (1) support surface (120) resting on the rear face (32) of the support (3).