UV LED Lighting Device with Segmented Cover and Latch Substrate
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Solution Overview
Problem
UV LED lighting apparatuses face challenges in UV illumination efficiency and assembly performance due to the difficulty in machining materials with high UV light transmittance, such as quartz and poly(methyl methacrylate) resin, which are not suitable for bending and punching.
Innovation Solution
The UV LED lighting apparatus features a substrate with a latch groove and support guide with a hook to secure the substrate, a resilient member for compressive force, and a cover with press-fitting and O-ring interference fit to the base, eliminating the need for punching and deformation, and using materials like quartz or PMMA for high UV transmittance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If materials with high UV light transmittance (quartz, PMMA resin) are used for the cover, then UV illumination efficiency is improved, but machining difficulty increases and assembly performance deteriorates
Solution Approach 1:
The cover is divided into multiple modular sections with standardized coupling recesses, allowing each segment to be manufactured separately using simpler processes and then assembled together. This segmentation enables the use of high UV-transmittance materials while avoiding the need for complex machining of entire large components.
Solution Approach 2:
The substrate is nested within the cover structure through coupling recesses and fastening members, creating a hierarchical assembly where the substrate fits into predetermined spaces in the cover. This nesting approach allows precise positioning without requiring complex machining of the cover material itself.
2Illumination intensity
If materials with high UV light transmittance (quartz, PMMA resin) are used for the cover, then UV illumination efficiency is improved, but assembly performance deteriorates due to low machinability
Solution Approach 1:
Coupling recesses, fastening holes, and mounting structures are pre-formed in the cover during the molding process rather than requiring post-manufacturing machining operations. This preliminary action significantly simplifies assembly operations while maintaining high UV transmittance properties of the cover material.
Solution Approach 2:
Fastening members and coupling structures serve as intermediaries between the cover and substrate, enabling assembly without requiring direct machining or modification of the high UV-transmittance cover material. These intermediary components facilitate easy installation while preserving the optical properties of the cover.
3Strength
If complex machining and bonding processes are used to assemble the lighting apparatus, then structural integrity is improved, but manufacturing time and costs increase
Solution Approach 1:
Multiple functions are merged into integrated structures: the cover simultaneously provides UV transmission, structural support, and assembly interfaces. Fastening members combine positioning, securing, and electrical connection functions. This merging reduces the number of separate machining and bonding operations required while maintaining structural integrity.
Solution Approach 2:
The cover and substrate are designed with self-aligning features such as coupling recesses and corresponding protrusions that automatically position components correctly during assembly. This self-service approach eliminates the need for complex alignment procedures and reduces assembly time while ensuring proper structural integration.
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 design enhances UV illumination efficiency and simplifies assembly, reducing manufacturing time and costs by eliminating the need for separate machining and bonding processes, while maintaining high UV transmittance and protection.
Implementation Method 1
light emitting diodes (LEDs) are used in a display unit or a lighting apparatus which replaces a typical light bulb
Implementation Method 2
UV LEDs have been applied to a sterilization apparatus with various advantages, such as inexpensiveness, user convenience and high efficiency, in various fields, since effects of UV light in removal of DNA or RNA bacteria were ascertained
Implementation Method 3
A lighting apparatus using a UV LED requires a cover formed of a material exhibiting high UV light transmittance due to wavelength characteristics of UV light emitted from the UV LED
Implementation Method 4
the UV LED lighting apparatus further includes a resilient member provided to the coupling recess and providing compressive force to force the substrate to be brought into close contact with the hook fitted into the substrate
Implementation Method 5
the base is provided with an O-ring member fitted into a gap between the base and the cover and forcing the cover to be interference-fitted into the base
Data Source
Figure 1
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AI summary
Disclosed is an ultraviolet ray emitting diode lighting device. The disclosed invention comprises: an ultraviolet ray emitting diode for emitting ultraviolet rays; a substrate on which an ultraviolet ray emitting diode is mounted; a base on which a space for accommodating the substrate is formed and an electrode pin electrically connected to the substrate is installed; and a cover, which is provided to surround the ultraviolet ray emitting diode and the substrate and is coupled to the base, wherein the base includes a support guide fitted in the substrate to support the substrate on the base so as to restrict movement of the substrate.