Spring-Loaded Fastening Element for LED Module Fixation
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Solution Overview
Problem
Existing fastening systems for electronic modules, such as printed circuit boards with LEDs, on light supports are complex, time-consuming to assemble, and lack a simple, secure fixation method.
Innovation Solution
A fastening element with resiliently deflectable spreading elements that form a spring preload, allowing for easy insertion into a fastening recess on the light support, providing secure fixation without the need for additional tools, and featuring a tapered end to dig into the support for enhanced stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a multi-part fastening element with additional springs and latching hooks is used, then the fixation reliability is improved, but the device complexity and assembly time increase
Solution Approach 1:
The patent combines the holding function and fastening function into a single integrated fastening element. The foot with spreading elements provides both the fastening action and the holding-down force through its spring mechanism, eliminating the need for separate components like additional springs or latching hooks found in prior art solutions.
Solution Approach 2:
The fastening element is designed to automatically perform both fastening and holding functions through its own structural features. The spreading elements automatically engage with the fastening recess and exert spring force to hold the module down, without requiring additional active components or complex assembly steps.
2Reliability
If a screw-based fastening system is used, then the fixation reliability is improved, but the assembly time and ease of operation deteriorate
Solution Approach 1:
The patent replaces the screw-based mechanical fastening system with a spring-loaded spreading element mechanism. Instead of requiring threading and tightening operations, the fastening element simply needs to be inserted into the fastening recess, where the spring force automatically secures it in place, dramatically reducing assembly time and tool requirements.
Solution Approach 2:
The fastening element automatically secures itself through the spring mechanism of the spreading elements. Upon insertion, the spreading elements engage with the fastening recess and the spring force maintains the connection, eliminating the need for manual tightening or additional fastening operations required by screw systems.
3Ease of operation
If the spreading elements are made resiliently deflectable, then the ease of insertion is improved, but the fixation reliability may worsen
Solution Approach 1:
The patent utilizes the elastic properties of the spreading elements, allowing them to deflect during insertion and then maintain a constant spring force in the engaged position. This parameter change from a rigid to an elastic structure enables both easy insertion and reliable fixation, as the material transitions from a flexible insertion state to a forceful holding state.
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
Enables secure, one-handed insertion and automatic fixation of electronic modules on light supports, simplifying assembly and ensuring reliable holding without additional tools, while allowing for easy production and use in automated equipping processes.
Implementation Method 1
the spreading elements are designed to be resiliently deflectable in opposite directions to one another in opposite directions to one another, forming a spring preload
Implementation Method 2
the spreading elements are designed to be resiliently deflectable
Implementation Method 3
the free ends of the spreading elements are tapering to a point in order to dig into the wall of the lamp support at the end and thus be able to fix it more firmly
Data Source
Figure 1~2b
Figure 3a~3c
Figure 4
AI summary
The invention relates to a fastening element, a fastening system comprising the fastening element, and a method for mounting a light module onto a light carrier using the fastening system. The fastening element (1) has a holding area (5) for securing an electronic module, such as a circuit board, in particular a circuit board equipped with LEDs, onto a light carrier and a mounting area (6) for its counter-support on the light carrier. For counter-support on the light carrier, the mounting area has a foot (7) with a pair of expanding elements (8) comprising two expanding elements, wherein the expanding elements are designed to be spring-loaded and deflected in opposite directions relative to a provided mounting recess of the light carrier, perpendicular or approximately perpendicular to a provided insertion direction of the fastening element into the light carrier, forming a spring preload.