High-Voltage LED Chip Set for Plant Lighting Heat Reduction
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Traditional LED lighting systems for plants face issues such as non-uniform light distribution, low conversion efficiency, high power consumption, and short service life due to low voltage and high current operation, which leads to heat dissipation challenges and increased costs.
Innovation Solution
A high-voltage LED light source with a substrate, LED chips connected in series or parallel, and layers of glue powder containing fluorescent particles to achieve a specific spectral composition, allowing for efficient light emission with reduced heat generation and improved reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If low-voltage LED chips operate at high current to achieve required brightness, then luminous intensity is improved, but heat dissipation performance deteriorates and service life decreases
Solution Approach 1:
The patent changes the operating parameters of LED chips from traditional low-voltage high-current mode to high-voltage low-current mode. Specifically, it uses series connection of multiple LED chips to increase operating voltage and reduce operating current, thereby reducing heat generation while maintaining required luminous intensity. This parameter transformation directly resolves the contradiction between illumination intensity and heat dissipation.
2Reliability
If additional drive power supply with larger power is used to provide stable current source, then reliability of LED driving is improved, but conversion efficiency of electric energy deteriorates
Solution Approach 1:
The patent extracts and removes the additional drive power supply component from the LED lighting system. By using high-voltage LED chips that can be directly driven by rectified AC power without requiring complex DC-DC conversion circuits, it eliminates the power conversion losses associated with additional drive supplies while maintaining reliable operation.
3Ease of manufacture
If traditional low-voltage LED lighting system is used, then ease of manufacture is improved, but service life of driving power supply deteriorates
Solution Approach 1:
The patent removes the vulnerable drive power supply component from the system by using high-voltage LED chips that can be directly connected to rectified AC power. This extraction of the power conversion stage eliminates the main source of reduced service life while keeping the manufacturing process relatively simple.
Solution Approach 2:
The LED chip set becomes self-sufficient by directly accepting rectified AC power without external drive circuits. The high-voltage LED chips inherently handle the power conversion needs, making the system more reliable and extending service life while maintaining ease of manufacture.
4Stability of the object's composition
If red and blue LED light sources are combined to achieve specific spectral composition, then light quality for plant growth is improved, but device complexity deteriorates
Solution Approach 1:
The patent merges multiple LED chips with different spectral characteristics into a single integrated LED chip set. By combining red, blue, and potentially other wavelength LEDs in one module with unified high-voltage driving, it achieves the required spectral composition for plant growth while simplifying the overall device structure and reducing the number of separate components.
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 high-voltage LED light source provides a more uniform light distribution, reduces power consumption, and extends the service life of the LED lighting system while lowering manufacturing costs and heat dissipation requirements.
Implementation Method 1
The LED chips are blue light LED chips and/or ultraviolet LED chips
Implementation Method 2
layers of glue powder containing fluorescent particles to achieve a specific spectral composition
Data Source
AI summary
A front-mounted high-voltage LED light source for supplementing light to plants includes a substrate, a high-voltage LED chip set, a first layer of glue powder and a second layer of glue powder. By controlling a weight ratio of the transparent adhesive medium and the red fluorescent particles in the first layer of glue powder, as well as thickness of the first layer of glue powder; and, by controlling a weight ratio of the transparent adhesive medium and the yellow fluorescent particles in the second layer of glue powder, as well as the thickness of the second layer of glue powder, a ratio range of photon number of red light, blue light to green light emitted by the front-mounted high-voltage LED light source for supplementing light to plants per a unit time is (65-95):(5-30):(5-25).