Waterproof Decorative Lamp Wire Trapper Sealing Assembly
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Solution Overview
Problem
Existing decorative lamps face challenges in achieving a convenient assembly process while maintaining waterproofing, as integrated injection molding can damage LEDs and assembled structures with soft components fail to provide a sealed environment, leading to oxidation and poor contact.
Innovation Solution
A decorative lamp design featuring a wire trapper and a housing with a sealing assembly, where the wire trapper traps conductive wires between the luminophor and the housing, ensuring secure and waterproof connections through slots and press-fit mechanisms, and a snap-fit member with a throughhole that cooperates with the housing to form a tight seal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If integrated injection molding is used to achieve waterproofing, then waterproof effect is improved, but LED is easily damaged during heating and machining is inconvenient
Solution Approach 1:
The lamp holder is divided into separate components: a housing, a wire trapper, and a lampshade. These parts are manufactured separately and then assembled together to form the complete lamp holder, eliminating the need for complex integrated injection molding while maintaining waterproofing.
Solution Approach 2:
The wire trapper acts as an intermediary component that connects the housing and lampshade while providing waterproofing. It includes protrusions that fit into recesses and include sealing structures to prevent water ingress at the connection points.
2Ease of manufacture
If assembled structure with soft core and soft head is used for convenient machining, then ease of manufacture is improved, but gaps at coupling portions cause oxidation and poor contact
Solution Approach 1:
A waterproof film or coating is applied to the coupling surfaces between components. This flexible sealing layer fills gaps and prevents water ingress while allowing for minor dimensional variations in the assembled parts.
Solution Approach 2:
The wire trapper and housing use composite sealing structures combining rigid plastic components with flexible sealing elements (such as rubber gaskets or silicone seals) to achieve both mechanical strength and waterproofing at connection points.
3Ease of manufacture
If assembled structure is used to avoid LED damage, then ease of manufacture is improved, but gaps lead to oxidation of LED leads and terminals
Solution Approach 1:
The interior of the housing creates a protected environment for the LED leads and terminals. Waterproof sealing prevents moisture and oxygen from reaching these electrical contacts, effectively creating an inert atmosphere that prevents oxidation.
Solution Approach 2:
The wire trapper serves as an intermediary barrier that seals the connection points between conductive wires and the lampshade. Its protrusions fit into recesses with integrated sealing structures to block water and oxygen pathways.
Data Source
AI summary
A decorative lamp, including a lampshade, a luminophor and conductive wires connected with the luminophor. The decorative lamp includes a wire trapper, one end portion is disposed between the conductive wires and a housing with opened inner space. The wire trapper is disposed inside the inner space, the conductive wires extend out of an opened end of the inner space to be connected to an external power supply with one end portion of the wire trapper and an inner wall of the housing defining the inner space press and fix the conductive wires. The lampshade and the housing respectively include structures that cooperate to form a sealing assembly. The decorative lamp may also be modified by replacing the cooperation between the lampshade and the housing by a snap-fit member such that the luminophor extends out of the snap-fit member and forms a tight cooperation with the snap-fit member.