Rotating LED Vehicle Lamp for Heat Management
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Solution Overview
Problem
The concentration of multiple LEDs in vehicle headlamps leads to excessive heat generation, degrading heat resistance and causing boundary lines in light emission due to overlapping LEDs, which complicates the implementation of matrix headlamp techniques.
Innovation Solution
A vehicle lamp with a rotating light source that reduces the number of LEDs and includes a controller and driver to manage light emission, using a signal receiver and transmitter to control the rotation and light generation of LEDs, allowing for surface emission without boundary lines and improved heat dissipation through strategically positioned rotating plates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple LED elements are concentrated in a headlamp to implement matrix headlamp technique, then light emission control capability is improved, but heat generation increases and heat resistance performance degrades
Solution Approach 1:
The invention divides the headlamp into multiple independently controllable modules, each containing a limited number of LED elements. This segmentation allows each module to be controlled separately for matrix headlamp functionality while preventing excessive heat concentration in any single area, as each module can be independently managed for thermal performance.
Solution Approach 2:
The invention dynamically controls the operation of LED elements based on driving conditions, selectively activating only the necessary LEDs for current lighting requirements. This dynamic operation reduces overall heat generation while maintaining the adaptability needed for matrix headlamp techniques, as not all LED elements operate simultaneously at full power.
2Stability of the object's composition
If multiple LED elements are densely arranged to reduce boundary lines, then light distribution uniformity is improved, but heat dissipation performance deteriorates
Solution Approach 1:
The headlamp is segmented into multiple modules with controlled LED densities. Each module maintains sufficient LED spacing for effective heat dissipation while the collective arrangement of all modules provides uniform light distribution across the entire headlamp beam pattern, avoiding the need for excessive LED density in any single location.
Solution Approach 2:
Different regions of the headlamp are designed with different LED arrangements optimized for their specific functions. Areas requiring uniform illumination have appropriately spaced LEDs for heat dissipation, while maintaining overall light distribution uniformity through the combined effect of all regions rather than uniform high-density arrangement throughout.
3Temperature
If the number of LED elements is reduced to improve heat resistance, then heat dissipation is improved, but the complexity of light emission control increases
Solution Approach 1:
The headlamp is divided into multiple independently controllable modules, each with a manageable number of LED elements. This segmentation reduces the total count of LEDs needed while maintaining matrix headlamp functionality, as each module can be controlled independently. The reduced number of LEDs per module simplifies heat management while the modular control architecture manages the complexity of light emission control.
Solution Approach 2:
Each LED module is designed to perform multiple functions: providing illumination, enabling matrix headlamp patterns, and serving as an independently controllable thermal management unit. This multi-functionality reduces the need for additional components and controls, managing system complexity while maintaining heat resistance through reduced LED counts per module.
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
This solution reduces heat resistance issues and eliminates boundary lines in light emission, enabling efficient and boundary-free surface light distribution while improving heat dissipation and reducing the number of LEDs required, thus enhancing the performance of matrix headlamp technology.
Implementation Method 1
a light emitting diode (LED) portion having one or more LED elements configured to emit light toward an outside of the vehicle
Implementation Method 2
a driver coupled to the LED portion and configured to rotate the LED portion
Data Source
AI summary
A vehicle lamp with a rotating light source may include a signal receiver which receives a signal from one or more sensors provided in a vehicle; a light emitting diode (LED) portion having one or more LED elements configured to emit light toward an outside of the vehicle; a controller connected to the one or more LED elements and configured to control a light generation amount of the one or more LED elements; a signal transmitter which is connected to the signal receiver, receives the signal from the signal receiver and transmits the received signal to the controller; and a driver coupled to the LED portion and configured to rotate the LED portion, wherein the controller controls the light generation amount of the one or more LED elements in a response to the signal.