External Power Distributor for LED Lamp Thermal Management
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Solution Overview
Problem
LED lighting lamps face issues with power supply module heat generation, short lifespan, increased weight, and reduced design flexibility due to integrated converters, which lead to premature failure and increased replacement costs, as well as difficulties in managing varying electric capacities for different LED lighting fixtures.
Innovation Solution
A lighting lamp system with a separate power distributor that includes a main converter for AC to DC power conversion, a buck converter for each lighting lamp, and a controller for managing power distribution, allowing for adjustable current settings and battery backup, thereby isolating the power supply module from the lamp and enabling flexible design and maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the power supply module is integrated into the LED lighting lamp, then the lamp structure is compact and complete, but the heat generated by the converter degrades the LED lifespan and causes premature failure
Solution Approach 1:
The patent divides the lighting system into two independent parts: the LED lamp module (containing only the LED chip and basic mounting structure) and the external power supply module (containing the converter). This segmentation allows the heat-generating converter to be separated from the heat-sensitive LED chip, extending LED lifespan while maintaining system functionality.
Solution Approach 2:
The power supply module is extracted from the lamp structure and placed externally. The converter, which generates harmful heat, is taken out from the lamp body and positioned in a separate location, preventing thermal degradation of the LED chip while the lamp maintains its lighting function through the external power module connection.
2Device complexity
If the power supply module is integrated into the LED lighting lamp, then the lamp is self-contained, but the weight of the lamp increases significantly
Solution Approach 1:
The heavy power supply module is extracted from the lamp body and positioned externally. This removes the significant weight (20% or more of total lamp weight) from the lamp structure, making the lamp lighter and easier to install and replace, while the external power module remains available to provide power when needed.
3Device complexity
If the power supply module is integrated into the LED lighting lamp, then the lamp is complete, but the design flexibility is degraded
Solution Approach 1:
By segmenting the system into lamp module and power module, the patent enables independent design optimization of each component. The lamp can be designed for specific lighting applications without being constrained by the size and thermal requirements of an integrated power supply, while the power module can be designed separately for different power requirements.
Solution Approach 2:
The external power supply module can serve multiple different LED lamp types and configurations. A single power module design can support various lamp modules with different LED chip arrangements, color temperatures, and power requirements, increasing design flexibility and reducing the need for lamp-specific power supplies.
4Reliability
If separate power supply modules are installed for each LED lighting fixture, then each lamp has dedicated power, but the installation complexity and replacement cost increase
Solution Approach 1:
The patent merges multiple power supply functions into a single shared external power module that can serve multiple LED lamp modules. This consolidation reduces the total number of power modules needed, simplifies installation, and lowers replacement costs while maintaining dedicated power delivery to each lamp through separate connection interfaces.
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 extends the lifespan of LED lighting lamps by isolating the power supply from heat sources, reduces the weight and complexity of the lamp, and allows for convenient replacement and management of different lighting configurations, ensuring stable current delivery and preventing malfunctions.
Implementation Method 1
a main converter for converting external alternating-current power into direct-current power
Implementation Method 2
a buck converter exchangeable installed in each partition space, receiving direct-current power from a main converter to each lighting lamp, and outputting the lighting power by stepping-down the received direct-current power
Implementation Method 3
The LED means a semiconductor light emitting element using naturally emitted light generated when the electrons and the holes injected to a PN junction are recoupled
Data Source
AI summary
The present invention relates to a lighting lamp system and a power distributor used for the lighting lamp system. The lighting lamp system comprising: a plurality of lighting lamps; a main converter for converting external alternating-current power into direct-current power; a distributor provided to be isolated from the lighting lamps and supplying power for lighting to the plurality of lighting lamps by converting the direct-current power from the main converter; and a controller for controlling the operations of the lighting lamps by controlling the distributor.