Christmas Lamp Cap Potting Assembly Brightness and Waterproofing
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Solution Overview
Problem
Christmas lamps have insufficient brightness and unstable, non-waterproof installation due to the direct mounting of patch lamp boards in lamp caps, leading to poor light transmission and structural issues.
Innovation Solution
A lamp cap design featuring a potting wick assembly with a transparent outer housing, convex mirror structure, and modified asphalt adhesive, which includes specific components for improved insulation, waterproofing, and light concentration, along with ultrasonic welding of split-type housings for enhanced stability and sealing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If only one separate LED lamp bead is mounted in the lamp cap, then the structure is simple, but the brightness is insufficient and light transmission is low
Solution Approach 1:
Multiple LED lamp beads are integrated onto a single patch lamp board, combining multiple light sources into one unified component that can be installed as a single unit in the lamp cap, thereby increasing brightness while maintaining installation simplicity
Solution Approach 2:
The patent transitions from a single-point light source to a planar array of LED beads on a patch board, utilizing two-dimensional spatial arrangement to increase total light output without proportionally increasing installation complexity
2Reliability
If the patch lamp board is installed directly into the lamp cap housing, then the installation process is simple, but the installation stability is poor and waterproofing is not achieved
Solution Approach 1:
The assembly is divided into distinct functional modules: the patch lamp board assembly, the transparent outer housing with receiving cavity, and the lamp cap housing. This segmentation allows each component to be optimized independently while improving overall installation stability through dedicated mounting features like positioning blocks and snap rings
Solution Approach 2:
The transparent outer housing acts as an intermediary component between the patch lamp board and the lamp cap housing, providing a receiving cavity that secures the patch lamp board and enabling waterproof sealing through the potting adhesive, thereby improving installation stability without significantly increasing overall complexity
3Reliability
If the patch lamp board is installed directly into the lamp cap housing, then fewer components are needed, but waterproofing of the connection is not achieved
Solution Approach 1:
The transparent outer housing serves as a waterproof intermediary chamber that encloses the patch lamp board. The potting adhesive fills the space between the patch lamp board and the housing walls, creating a waterproof seal that protects the electrical connections without requiring complex gasket systems or threaded seals
Solution Approach 2:
The potting adhesive acts as a flexible sealing medium that conformally coats the patch lamp board and fills irregular spaces, providing effective waterproofing through its adhesive and sealing properties rather than through rigid mechanical sealing structures
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 design achieves brighter light through increased LED lamp beads, ensures waterproofing, and provides improved structural stability and miniaturization, reducing labor and material costs while maintaining product quality and environmental compliance.
Implementation Method 1
The light source scattering end has a convex mirror structure
Implementation Method 2
the potting adhesive is potted into the receiving cavity
Implementation Method 3
the left housing and the right housing are fixed through ultrasonic welding
Data Source
AI summary
A lamp cap of a Christmas lamp includes a lamp cap housing, and a potting wick assembly arranged in the lamp cap housing. The potting wick assembly includes a patch lamp board, a lead wire connected to the patch lamp board, a transparent outer housing, and a potting adhesive. At least one LED lamp bead is arranged on the patch lamp board. A receiving cavity is arranged in the transparent outer housing, and the patch lamp board is placed at a bottom of the receiving cavity. The lead wire is led out from one end of the receiving cavity, and the potting adhesive is potted into the receiving cavity.