LED Lighting Device With Segmented Coating and Expanded Optical Zone
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Solution Overview
Problem
Current LED light tubes face issues with complex protective layer coating processes, soldering section oxidation, and limited optical structure design leading to reduced conductivity, soldering effectiveness, and low light efficiency.
Innovation Solution
An LED lighting device with a protective layer featuring a single H-shaped opening and coated layers separated from soldering sections, along with an optical structure that extends the light-emitting zone to cover soldering sections, enhancing light efficiency and simplifying the coating process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the protective layer has multiple openings for disposing LEDs, then the light-emitting area is increased, but the coating process becomes complicated and halogen elements move to soldering sections causing oxidation
Solution Approach 1:
The protective layer is segmented into multiple coated layers (first coated layer and second coated layer) separated by a non-coated layer, allowing each layer to be applied and cured independently. This segmentation simplifies the coating process while maintaining multiple light-emitting openings across different layers, resolving the contradiction between increased light-emitting area and coating complexity.
2Area of stationary object
If the protective layer has multiple openings for disposing LEDs, then the light-emitting area is increased, but halogen elements move to soldering sections reducing conductivity and soldering effectiveness
Solution Approach 1:
The protective layer is divided into multiple coated layers with non-coated layers in between. The non-coated layers act as barriers that prevent halogen elements from migrating to the soldering sections, while the multiple coated layers still provide structural support and allow for multiple light-emitting openings. This segmentation resolves the contradiction between increased light-emitting area and maintained soldering reliability.
3Area of stationary object
If the optical structure is extended to cover soldering sections, then the overall light-emitting area is increased, but the device complexity increases
Solution Approach 1:
The light cover serves multiple functions: it provides the primary optical structure for light emission, extends the optical zone to cover soldering sections for enhanced light output, and acts as a protective enclosure. By making the light cover multi-functional, the patent increases the overall light-emitting area without proportionally increasing device complexity, as the same component performs multiple roles.
Data Source
AI summary
An LED lighting device includes a power supplier, a light cover and a circuit board. The circuit board is disposed in the light cover. The circuit board has a protective layer disposed thereon and a plurality of light sources. The circuit board has a front soldering section, a rear soldering section and a circuit section. The light sources are disposed on the circuit section and electrically connected to the circuit section. The protective layer includes an opening and two coated layers. The opening includes a front section, a rear section and a connecting section. The coated layers are disposed on the two sides of the connecting section respectively. The light sources are within the connecting section. The inner space of the light cover serves as an optical zone, such that the optical zone covers the front soldering section and the rear soldering section.