Magnetic Light Engine Attachment for Heat Dissipation
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Solution Overview
Problem
Existing light engine attachment methods to carriers require tools and adhesive materials, leading to inefficiencies in heat dissipation and reliability, and result in a cumbersome design.
Innovation Solution
A light device with a magnetic attachment system where the first magnetic element is positioned between the optical device and the light-emitting device, allowing for tool-free and adhesive-free attachment, minimizing volume and weight, and optimizing heat dissipation by not interfering with the heat sink, while enabling flexible design and assembly configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If screwing or adhesive attachment is used to attach light engine to carrier, then attachment strength is improved, but ease of operation deteriorates due to need for tools and adhesive materials
Solution Approach 1:
The patent replaces traditional mechanical attachment methods (screws, adhesives) with a magnetic attachment system. The carrier includes a magnetic element that magnetically attracts the light engine, enabling tool-free and adhesive-free attachment while maintaining sufficient attachment strength. This substitution of mechanical systems with magnetic fields resolves the contradiction between strong attachment and ease of operation.
2Ease of operation
If magnetic element is placed between light source and carrier to enable magnetic attachment, then ease of operation is improved, but heat dissipation deteriorates due to interference with heat sink
Solution Approach 1:
The patent relocates the magnetic element from the vertical path between the light source and carrier (which would block heat dissipation) to a lateral position on the carrier. This dimensional relocation allows the magnetic attachment function to be maintained while eliminating interference with the heat sink's thermal management pathway, thus resolving the contradiction between ease of operation and heat dissipation.
3Ease of operation
If magnetic element is positioned between light source and carrier, then magnetic attachment is achieved, but device complexity increases due to stacked configuration
Solution Approach 1:
The patent simplifies the device structure by relocating the magnetic element to a lateral position on the carrier rather than stacking it between the light source and carrier. This dimensional change eliminates the need for a multi-layer stacked configuration, reducing structural complexity while maintaining the magnetic attachment function.
4Ease of operation
If magnetic element is positioned between light source and carrier, then magnetic attachment is achieved, but weight of light engine increases
Solution Approach 1:
The patent extracts the magnetic element from the light engine assembly and places it exclusively on the carrier. This extraction removes unnecessary weight from the light engine while maintaining the magnetic attachment function through the carrier's magnetic element, thus resolving the contradiction between ease of attachment and weight reduction.
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 magnetic attachment system enhances reliability, reduces the volume and weight of the light engine, improves heat dissipation, and allows for customizable light emission parameters and assembly methods, minimizing risks of damage during attachment.
Implementation Method 1
a first magnetic element; said support holder and the optical device being typically on either side of the light-emitting device, the first magnetic element of the light engine according to the invention is not located between the light-emitting device and the support holder, preventing accordingly the stacked configuration of prior art, but on a surface of the light-emitting device opposite the interface between the light-emitting device and the support holder
Implementation Method 2
Said support holder and the optical device being typically on either side of the light-emitting device, the first magnetic element of the light engine according to the invention is not located between the light-emitting device and the support holder... since the first magnetic element is not necessarily located between the light source and the support holder, it must not necessarily contribute to the heat dissipation from the light source through the support holder
Data Source
AI summary
The invention relates to a light engine (40) comprising: a light-emitting device (30) comprising at least one light source; an optical device (20) attached to the light-emitting device (30); and at least one first magnetic element (25) between the light-emitting device (30) and the optical device (20). The invention relates also to a light device (10) comprising: said light engine (40); and a support holder (50) arranged to bear the light engine (40), comprising a magnetic material adapted such that the at least one first magnetic element (25) of the light engine (40) and this magnetic material are magnetically attracted one to the other to magnetically attach the light engine (40) to the support holder (50).