Net-Structured FPCB for Flexible Lighting Heat Dissipation
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Solution Overview
Problem
Conventional flexible lighting apparatuses face challenges in heat dissipation due to their closed body structure, which hinders transformability and increases manufacturing costs, as they often require a heat sinking plate that compromises flexibility.
Innovation Solution
A flexible lighting apparatus utilizing a net-structured flexible printed circuit board (FPCB) with through-holes and a supporting layer made of fabric, eliminating the need for a heat sinking plate, allowing for effective heat dissipation and maintaining transformability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a closed-body FPCB structure is used, then structural integrity is improved, but heat dissipation capability deteriorates
Solution Approach 1:
The FPCB is designed with a net structure containing multiple through-holes distributed across its surface. This porous configuration allows heat to dissipate through the holes while the remaining circuit board structure maintains structural integrity and supports electrical connections.
2Temperature
If a heat sinking plate is added, then heat dissipation capability is improved, but transformability deteriorates
Solution Approach 1:
The invention removes the heat sinking plate from the system entirely. Instead, heat dissipation is achieved through the net structure of the FPCB itself and the supporting layer with apertures, eliminating the rigid component that would restrict folding and rolling operations.
3Temperature
If a heat sinking plate is added, then heat dissipation capability is improved, but manufacturing cost deteriorates
Solution Approach 1:
By removing the heat sinking plate from the assembly, the invention reduces the number of components that need to be manufactured, procured, and assembled. This simplification directly lowers manufacturing costs while the net FPCB structure provides the necessary heat dissipation function.
4Temperature
If a net-structured FPCB is used, then heat dissipation capability is improved, but structural integrity deteriorates
Solution Approach 1:
The net structure distributes through-holes strategically across the FPCB, creating local variations in density and stiffness. Areas with higher circuit density have appropriate support, while maintaining overall heat dissipation capability. The supporting layer with apertures provides additional local reinforcement where needed.
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 solution enables efficient heat dissipation, maintains unconstrained transformability, and reduces manufacturing costs by using a net-structured FPCB and a fabric-supported layer, improving both performance and production efficiency.
Implementation Method 1
heat generated in operation can effectively dissipate
Data Source
AI summary
Flexible lighting apparatus and method of manufacturing the same disclosed. The flexible light apparatus includes a net-structured flexible printed circuit board (FPCB), being manufactured in shape of net structure in which a plurality of through-holes are formed separately from each other in a body of the net-structured FPCB, and having predetermined circuit patterns formed thereon, a plurality of light sources, being mounted on at least one of predetermined mounting location among intersection and branch of the net-structured FPCB, and a supporting layer, having apertures formed thereon and being fixed to support the net-structured FPCB at bottom surface.