Transformer-less LED Lighting with Snap-fit Mounting
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Solution Overview
Problem
Existing lighting solutions require tool-based installation and often necessitate additional holes in ceilings or walls, and they rely on bulky transformer-driven power systems, which complicates installation and increases costs.
Innovation Solution
A lighting arrangement featuring a transformer-less driving circuit and a reversible snap-fit connection system that allows direct attachment to standard junction boxes without additional holes, utilizing a casing with a perimeter wall and a mounting bracket with various aperture patterns for versatile installation and AC power from the grid.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If a transformer-driven power system is used, then the lighting system can be powered from AC grid, but the device complexity and installation difficulty increase due to bulky transformers and additional mounting requirements
Solution Approach 1:
The patent removes the transformer component from the lighting system, extracting the bulky power conversion device that caused installation complexity. The lighting arrangement is redesigned to operate directly from AC power without requiring a transformer, thereby eliminating the associated mounting hardware, thermal management requirements, and installation steps while maintaining AC grid compatibility.
2Reliability
If traditional mounting methods are used, then the lighting can be securely installed, but additional holes in ceilings or walls are required, increasing installation complexity and cost
Solution Approach 1:
The mounting bracket is designed with multiple aperture patterns that can accommodate various standard junction box configurations and mounting scenarios. This universal design allows the same lighting fixture to be installed in different locations and configurations without requiring custom mounting solutions or additional structural modifications, thereby maintaining installation security while reducing overall system complexity.
Solution Approach 2:
The mounting bracket is pre-configured with multiple aperture patterns during manufacturing, allowing installers to select and use the appropriate mounting configuration without requiring additional holes or structural modifications. The preliminary preparation of multiple mounting options in the bracket design eliminates the need for complex installation procedures during site installation.
3Reliability
If tool-based installation methods are used, then secure mounting can be achieved, but the installation time and labor costs increase
Solution Approach 1:
The patent replaces traditional mechanical fastening systems requiring tools (screws, bolts, drill bits) with a tool-free snap-fit mounting mechanism. The mounting bracket features engagement structures that securely attach the lighting fixture to standard junction boxes through simple manual insertion and engagement, eliminating the need for power tools while maintaining mounting security through precise mechanical interlocking.
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 easy, tool-free installation and compact design with direct AC power from the grid, reducing installation complexity and eliminating the need for transformers, thus enhancing installation efficiency and cost-effectiveness.
Implementation Method 1
A lighting arrangement can include a casing, a mounting bracket, a plurality of light emitting diodes, and a driving circuit
Data Source
AI summary
A lighting arrangement can include a casing, a mounting bracket, a plurality of light emitting diodes, and a driving circuit. The casing can have a perimeter wall extending about a central axis and bottom lip projecting from the perimeter wall. The mounting bracket can be configured to be affixed to a ceiling. A cavity can be defined vertically between the bottom lip and the mounting bracket and defined radially by the perimeter wall. The driving circuit can be configured to power the plurality of light emitting diodes with AC power. The driving circuit can be transformer-less and include a powering circuit portion electronically communicating with the plurality of light emitting diodes. The driving circuit is disposed in the cavity.