Integrated LED Headlight Heat Sink With Embedded Heat Pipe
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing heat dissipating structures for automotive LED headlights are inefficient due to their split design, which affects the heat dissipation efficiency and the lifespan of high-brightness and high-power LED headlights, leading to luminous decay and reduced brightness over time.
Innovation Solution
An integrally formed heat dissipating structure comprising a radiator with embedded grooves for accommodating a heat pipe and lamp bead board, connected via solder paste, and enhanced with a cooling fan and adapter plate for improved heat transfer and dissipation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a split radiator design is used with screws to fix components, then the device complexity is reduced and ease of assembly is improved, but the heat dissipation efficiency deteriorates due to the broken structure in the middle
Solution Approach 1:
The patent merges the radiator, heat pipe, and lamp bead board into a single integrated structure where the lamp bead board is directly embedded in the radiator and the heat pipe connects them seamlessly. This eliminates the need for separate screw-fixing components and creates a continuous heat dissipation path, resolving the contradiction by combining multiple components into one unified structure that maintains both ease of assembly and high heat dissipation efficiency
2Illumination intensity
If high-brightness and high-power LED headlights are used, then the illumination intensity is improved, but the temperature increases and heat dissipation becomes more difficult
Solution Approach 1:
The patent introduces a heat pipe as an intermediary component between the lamp bead board and the radiator. The heat pipe efficiently transfers heat from the high-power LED source to the radiator's heat dissipation fins, enabling the system to handle high brightness requirements while maintaining effective heat removal through the embedded groove structure
3Ease of manufacture
If the heat is not dissipated completely, then the manufacturing simplicity is maintained, but the lifetime is reduced due to junction temperature and luminous decay
Solution Approach 1:
By embedding the lamp bead board directly into the radiator with integrated heat pipe connection, the patent creates a unified heat dissipation system that ensures complete heat removal. This integrated design maintains manufacturing simplicity while preventing junction temperature buildup, thereby extending the LED lifetime and preventing luminous decay
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 structure effectively reduces the inner temperature of the LED headlight, enhancing heat dissipation efficiency and extending the lifespan of high-brightness LED headlights by ensuring better heat management.
Implementation Method 1
utilizing a liquid-cooling copper heat-conducting pipe
Implementation Method 2
heat can be quickly transferred from a lamp bead board to heat dissipating fins
Implementation Method 3
radiator with embedded grooves for accommodating a heat pipe and lamp bead board
Implementation Method 4
heat dissipating structure
Implementation Method 5
The cooling fan is covered by a tail cap with a plurality of ventilation holes
Data Source
AI summary
The present disclosure discloses a heat dissipating structure for automotive LED headlight, which comprises a radiator formed integrally, wherein the radiator comprises one or more heat radiating arms. The heat radiating arm is provided with an embedded groove used for accommodating an assembly of a lamp bead board and a heat pipe. The beneficial effect of the present disclosure is that: the heat of the lamp bead board is transferred to the radiator, thus the heat dissipation efficiency has been greatly improved.