Rotating LED Heat Sink for Adjustable Light Angle
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Solution Overview
Problem
Existing LED lights have fixed light angles of either 180 degrees or 360 degrees, which limits their ability to adjust light distribution and can lead to inadequate heat radiation, necessitating the design of vents for heat dissipation.
Innovation Solution
An LED light design that includes a heat sink with rotating cooling fins and a connecting plate with grooves, allowing the light angle to be adjusted between 180 degrees and 360 degrees, and enabling heat radiation through air convection without the need for vents.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the light angle is fixed at 180 degrees or 360 degrees, then the structure is simple, but the light distribution is not adjustable and heat radiation is inadequate
Solution Approach 1:
The heat sink transitions from a static structure to a dynamic one by allowing the first and third cooling fins to rotate relative to the second cooling fin. This rotation enables the light angle to be adjusted between 180 degrees and 360 degrees, making the device adaptable to different lighting requirements while maintaining a relatively simple overall structure.
Solution Approach 2:
The heat sink is divided into separate modular components: a first cooling fin, a second cooling fin, and a third cooling fin, each connected via rotational joints. This segmentation allows independent adjustment of each fin's position, enabling flexible light angle control without significantly increasing overall structural complexity.
2Temperature
If vents are added for heat radiation, then heat dissipation is improved, but the structure becomes more complex and light distribution adjustability is lost
Solution Approach 1:
The heat sink uses a dynamic configuration where cooling fins can rotate to change the light angle. This dynamic structure inherently improves heat radiation by allowing optimal positioning of cooling surfaces without requiring fixed vents, thus maintaining adaptability while enhancing thermal management.
Solution Approach 2:
The rotating cooling fins serve multiple functions: they act as both the light-distributing optical elements and the heat-radiating thermal management components. This multi-functionality eliminates the need for separate vents, improving heat radiation while preserving light angle adjustability.
3Adaptability or versatility
If cooling fins are made stationary, then the structure is stable, but light angle adjustment and heat radiation are limited
Solution Approach 1:
The heat sink incorporates rotational joints that allow the first and third cooling fins to rotate relative to the second cooling fin, enabling light angle adjustment between 180 and 360 degrees. The structure maintains stability through defined rotational axes and connection points while achieving the required adaptability.
Solution Approach 2:
The system changes the positional parameter of the cooling fins by allowing rotation around fixed axes. This parameter change enables adjustment of the light angle while the fixed rotational axes and connection structures maintain overall structural stability during operation.
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 adjustable light angle and enhanced heat sink configuration improve light distribution and heat radiation efficiency, extending the LED's lifespan and eliminating the need for vents.
Implementation Method 1
enabling heat radiation through air convection without the need for vents
Data Source
AI summary
An LED light includes a holder, a power supply electrically connected to the holder, a body electrically to the power supply, a connecting plate connects the power supply with the body, and a heat sink connected with the connecting plate. The heat sink includes a first cooling fin, a second cooling fin and a third cooling fin. The second cooling fin connects between the first and the third cooling fins. The first and the third cooling fins each include a rotational axis, and the connecting plate includes a pair of grooves to engage with a corresponding rotational axis. The first and the third cooling fins rotate relative to the second cooling fin via rotating the rotational axis, an angle within 180-360 degree is formed between the first and the third cooling fins and the second cooling fin. The configuration of heat sink may improve the heat radiation effects.