Outdoor LED Lamp Waterproofing via Resistor Welding and Segmented Plug
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Solution Overview
Problem
Existing outdoor LED lamps face challenges with limited heat dissipation, resulting in low luminous brightness and efficiency, and their waterproofing is often inadequate due to gaps in the empty cup lamp holders, which can lead to oxidation corrosion and hidden circuit hazards.
Innovation Solution
The design includes a waterproof LED lamp with a plug portion that securely attaches to the empty cup lamp holder, featuring a resistor and electric conductor connected via a welding portion to enhance stability and ease of assembly, while also improving waterproofing by sealing the through hole and providing a stable conduction path.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If waterproof members are mounted inside the empty cup lamp holders, then waterproofing is improved, but the waterproof members may melt or be deformed after being heated for a long time, resulting in poor waterproof effect
Solution Approach 1:
The waterproof member is extracted from the empty cup lamp holder and relocated to the lamp shade. This separation allows the waterproof member to be positioned in a cooler environment, away from the heat generated by the lamp holder, preventing melting and deformation while maintaining waterproof functionality.
Solution Approach 2:
A waterproof groove is introduced as an intermediary structure in the lamp shade to house the waterproof member. This groove provides a dedicated space that protects the waterproof member from direct heat exposure while ensuring proper positioning and waterproofing functionality.
2Ease of manufacture
If gaps are left between the empty cup lamp holder and lamp shade for assembly, then ease of assembly is improved, but water can seep into these gaps causing oxidation corrosion and hidden circuit hazards
Solution Approach 1:
A waterproof tape is used as a flexible sealing element to fill the gap between the lamp shade and empty cup lamp holder. The tape provides a simple yet effective waterproof barrier that maintains the necessary assembly clearance while preventing water infiltration that would cause corrosion and circuit hazards.
3Stability of the object's composition
If the plug portion is securely attached to the empty cup lamp holder, then stability is improved, but the plug portion becomes difficult to remove and replace for maintenance
Solution Approach 1:
The plug portion is segmented from the empty cup lamp holder, allowing it to be easily inserted and removed as a separate unit. This modular design maintains stable connection during operation while enabling simple maintenance and replacement when needed, resolving the contradiction between stability and ease of repair.
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 improves the waterproof capacity and stability of the LED lamp, reduces the risk of oxidation corrosion, and simplifies maintenance by allowing easy replacement of the plug portion, while also enhancing light efficiency with a COB packaging layer on the LED light source.
Implementation Method 1
a welding portion is arranged on the through hole in a covered manner, and the welding portion is used for connecting the first pin of the resistor and the electric conductor
Implementation Method 2
a waterproof ring arranged on a bottom surface of the plug portion abuts against an inner surface of the empty cup lamp holder
Data Source
AI summary
Disclosed is an outdoor waterproof light emitting diode (LED) lamp. The LED lamp includes a lamp shade, a light source board, an empty cup lamp holder and a plug portion. A resistor is connected onto the light source board, the end, far away from the lamp shade, of the plug portion is provided with an electric conductor, one end of the resistor is electrically connected to the light source board, and the other end of the resistor penetrates the electric conductor and extends to a top end of the plug portion. The electric conductor is provided with a through hole allowing a first pin at one end of the resistor to penetrate, a welding portion is arranged on the through hole in a covered manner, and the welding portion is used for connecting the first pin of the resistor and the electric conductor.