LED Illumination Radiating Member with Concealed Heat Dissipation
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Solution Overview
Problem
LED illumination devices face efficiency and lifetime issues due to excessive heat generation, which degrades performance over time, particularly in high-output lamps with densely integrated LED chips, where conventional radiating fin structures effectively radiate heat but compromise visual appeal by exposing fins externally.
Innovation Solution
An LED illumination device design featuring a radiating member case that covers radiating fins, including a heat pipe, horn-shaped radiating fins, disk-shaped radiating disks, and a case with air entrance holes, made of high heat conductivity materials like Al or Cu, to enhance heat dissipation through conduction and convection while maintaining a clean exterior.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If radiating fins are exposed to the outside to improve heat radiation, then heat dissipation performance is improved, but visual appearance deteriorates
Solution Approach 1:
The patent applies nesting by placing a case (outer structure) that encloses the radiating fins (inner structure). The case is provided with air entrance holes to allow heat dissipation while concealing the fins, thus nesting the functional but visually problematic fins within an aesthetically pleasing outer shell.
2Shape
If a case is added to cover radiating fins to improve visual appearance, then visual effect is improved, but device complexity increases
Solution Approach 1:
The case is designed to serve multiple functions simultaneously: it covers the radiating fins for aesthetic purposes, provides structural support, and includes air entrance holes for heat dissipation. This multi-functionality reduces the need for separate components, thereby limiting the increase in device complexity.
3Temperature
If air entrance holes are formed in the case to improve heat radiation, then heat dissipation is improved, but manufacturing complexity increases
Solution Approach 1:
The case is designed with air entrance holes creating a porous structure that allows air flow for heat dissipation. These holes can be formed through standard manufacturing processes such as drilling or molding, which are well-established techniques that do not significantly increase manufacturing complexity.
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 effectively improves heat dissipation and visual appeal by allowing smooth heat radiation and air circulation, thereby extending the device's lifespan and maintaining a neat, aesthetically pleasing appearance.
Implementation Method 1
The radiating member is made of a metallic material having high heat conductivity and for example, may be made of Al or Cu
Implementation Method 2
The radiating fins 18 radially protrude on an outer circumference surface of a cylindrical support 16... The light transmitted to the radiating fins 18 is radiated by natural convection
Data Source
AI summary
The present invention relates to a radiating member of an LED illumination device and the LED illumination device using the same. Provided is an LED illumination device includes a printed circuit board mounted with LED chips; and a radiating member provided on a rear surface of the printed circuit board, wherein the radiating member includes a radiating pipe vertically attached to a center of the printed circuit board, radiating pins surrounding and attached to the printed circuit board at a predetermined interval, radiating disks provided below the radiating fins and arranged along the radiating pipe at a predetermined interval, and a radiating member case for covering the radiating member.