Light-emitting Device Radial Heat Dissipation via Cooling Medium
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Solution Overview
Problem
Existing LED lamps face limitations in heat dissipation, which affects their reliability and lifespan, and current methods are often inefficient and direction-dependent.
Innovation Solution
A light-emitting device with a combined ceramic and metal heat dissipation system, utilizing a shell assembly and heat dissipation assembly with through-holes for a cooling medium to circulate and remove heat, regardless of installation orientation, incorporating ceramic and metal radiators with fins for enhanced thermal management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If heat dissipation is achieved through metal radiator or internal heat dissipation channel, then heat dissipation function is provided, but heat dissipation effect is poor and installation direction is limited
Solution Approach 1:
The heat dissipation assembly is divided into separate ceramic and metal heat dissipation portions, each with specific functions. The ceramic portion contacts the LED chip for direct heat absorption, while the metal portion provides structural support and additional heat dissipation path, resolving the contradiction by segmenting the heat dissipation function into specialized components
Solution Approach 2:
The heat dissipation assembly is designed to function effectively in multiple installation orientations (vertical, horizontal, inclined) through its symmetric radial fin structure and gravity-independent cooling medium circulation path, making it universally adaptable to different installation directions while maintaining good heat dissipation effect
2Temperature
If heat dissipation channel is used inside lamp body, then heat dissipation function is provided, but the method is easily limited by installation direction
Solution Approach 1:
The cooling medium circulation path is designed to flow radially outward from the center through the fin structures in multiple directions simultaneously, transitioning from single-direction vertical heat dissipation to multi-dimensional radial heat dissipation, thereby eliminating installation direction limitations
Solution Approach 2:
The cooling medium naturally circulates through the heat dissipation channels driven by temperature differences and pressure gradients without requiring external power or active control, enabling the system to automatically adapt to any installation orientation while maintaining effective heat dissipation
3Temperature
If ceramic and metal heat dissipation are combined with cooling medium circulation, then heat removal from cavity is effective, but device structure becomes more complex
Solution Approach 1:
The ceramic heat dissipation portion, metal heat dissipation portion, fin structures, and cooling medium circulation channels are integrated into a single unified heat dissipation assembly that functions as one cohesive component, reducing the need for separate assemblies and simplifying overall device structure despite the advanced heat removal capability
Solution Approach 2:
The fin structures are nested within the heat dissipation assembly, with cooling channels integrated inside the ceramic and metal portions, creating a compact nested structure where multiple functions are contained within each other, improving heat removal efficiency without proportionally increasing external dimensions or structural 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 removes heat from the LED lamp cavity, ensuring reliable operation and extended lifespan regardless of installation direction, combining the benefits of ceramic and metal heat dissipation for improved thermal management.
Implementation Method 1
the first through-hole portion and the second through-hole portion are used to circulate a cooling medium to remove heat from the cavity space
Implementation Method 2
The first heat dissipation portion includes a ceramic radiator; the second heat dissipation portion includes a metal radiator
Data Source
AI summary
A light-emitting device, including a shell assembly and a heat dissipation assembly. The heat dissipation assembly includes a first heat dissipation portion and a second heat dissipation portion. The first heat dissipation portion is connected with the second heat dissipation portion. The first heat dissipation portion is used to load a light source assembly, and a cavity space is formed when the second heat dissipation portion is covered by and communicated with the shell assembly. The second heat dissipation portion is provided with a first through-hole portion, and the shell assembly is provided with a second through-hole portion, the first through-hole portion and the second through-hole portion circulate a cooling medium to remove heat from the cavity space. Whether the light-emitting device is installed vertically, horizontally or at a certain inclination, a good heat dissipation effect can be achieved and the applicable scope can be greatly expanded.