Waterproof Plug-in Lamp Double Sealing Design
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Solution Overview
Problem
Traditional LED lamp strings have poor waterproof performance and are prone to damage, affecting their service life due to unreasonable design and electrical safety concerns.
Innovation Solution
A waterproof plug-in lamp design featuring a lamp cap holder with a connecting portion, bumps, and a groove for secure LED light bar installation, combined with a waterproof ring and plug for double waterproofing, and a thread-connected lampshade for secure assembly, ensuring electrical safety and easy disassembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional LED lamp board structure is used with lamp cap holder and lampshade, then the lamp can provide decorative lighting function, but the waterproof performance is poor and the structure is prone to damage
Solution Approach 1:
The lamp structure is divided into separate functional components: a lamp cap holder assembly containing the LED lamp board and electrical connections, a removable lampshade, and a base assembly with waterproof sealing. This segmentation allows each component to be optimized independently for its specific function while maintaining overall waterproof integrity through standardized connection interfaces.
Solution Approach 2:
A waterproof seal ring is introduced as an intermediary element between the lamp cap holder and lampshade, and another seal ring between the lamp cap holder and base. These intermediary sealing components create reliable waterproof barriers without requiring complex integrated sealing structures, thus improving waterproof performance while keeping the overall design relatively simple.
2Strength
If the lamp structure uses conventional connection methods, then assembly is straightforward, but connection strength is insufficient and components are prone to damage
Solution Approach 1:
The LED lamp board is nested within the lamp cap holder, which itself is nested within the overall lamp structure. The lampshade fits over the lamp cap holder assembly, creating a nested configuration that provides structural protection and strong mechanical connection while maintaining ease of assembly through simple insertion and securing motions.
Solution Approach 2:
The lamp cap holder combines multiple functions into a single component: it provides structural support for the LED lamp board, houses the electrical connections and waterproof plug, and serves as the mounting interface for the lampshade. This merging of functions into one integrated component strengthens the overall connection while simplifying the assembly process.
3Object-affected harmful factors
If the lamp design lacks proper waterproof sealing, then the structure remains simple, but water ingress causes electric leakage and damage
Solution Approach 1:
Waterproof seal rings made of flexible elastomeric material are used at the connection interfaces between the lamp cap holder and other components. These thin film-like sealing elements conform to the mating surfaces and create effective waterproof barriers without requiring complex multi-layer sealing structures, thus protecting against water ingress while maintaining relatively simple design.
Solution Approach 2:
The waterproof sealing function is extracted as a separate, dedicated component (the seal ring) rather than being integrated into the main structural elements. This allows the sealing function to be optimized independently and replaced if necessary, improving water protection while keeping the overall structure relatively simple and maintainable.
4Stability of the object's composition
If the LED lamp board is fixed with rigid mounting, then structural stability is improved, but damage proneness increases due to lack of flexibility
Solution Approach 1:
The lamp cap holder and associated mounting structures incorporate flexible or elastomeric materials that provide both structural stability for securing the LED lamp board and sufficient flexibility to absorb mechanical shocks and vibrations. This combination prevents damage from rigid stress concentration while maintaining stable positioning of the light-emitting components.
Data Source
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AI summary
The present invention relates to the field of light decorations and lamps, in particular to a waterproof plug-in lamp. The waterproof plug-in lamp of the present invention has a simple and reasonable structure design. A waterproof ring (13) at a lower end of a lamp cap holder (1) makes contact with a surface of a lampshade (2). A waterproof plug (14) makes contact with a top end of the lampshade (2). The double waterproof design ensures desirable waterproof performance of the waterproof plug-in lamp, and a human body is out of contact with metal in the lamp cap holder (1), so that the safety is higher. The lamp cap holder (1) integrally formed through injection molding facilitates automatic production and assembly.