Multi-Resistor Waterproof Bulb with Elastomer Sealing
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Solution Overview
Problem
Existing LED bulbs, especially those using LED strip lights, face issues with water ingress due to environmental factors, leading to damage or moisture accumulation, which affects their service life and reliability.
Innovation Solution
A multi-resistor waterproof bulb structure featuring a cap, envelope, stem assembly, and a sealing elastomer base with blind holes and elastic waterproof seals, where two resistors are electrically connected in sequence and accommodated in tight-fitting blind holes, providing comprehensive waterproofing through the elastomer base's seal with the envelope and resistors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional LED bulb structures are used, then manufacturing is simple, but water enters the envelope causing damage and reducing service life
Solution Approach 1:
The resistor is nested within the blind hole of the sealing elastomer base, creating a compact integrated structure. The stem assembly is nested within the envelope, with the sealing elastomer base forming a waterproof barrier at the interface between the cap and envelope. This nesting approach achieves waterproofing without significantly increasing overall structural complexity.
Solution Approach 2:
The sealing elastomer base acts as an intermediary component between the cap and envelope, providing a waterproof seal. The blind holes in the sealing elastomer base serve as intermediaries to accommodate and position the resistors while maintaining the waterproof barrier. This intermediary approach solves the waterproofing problem without requiring complex multi-component assemblies.
2Productivity
If manual assembly is used for stem assembly, then flexibility is high, but assembly efficiency is low and automation is difficult
Solution Approach 1:
The stem assembly is segmented into distinct components: the sealing elastomer base with integrated blind holes, the resistors, and the LED strip light. This segmentation allows each component to be manufactured separately and then assembled through simple insertion into pre-formed positions, greatly facilitating automation. The blind holes are pre-formed in the sealing elastomer base, eliminating the need for complex drilling and positioning operations during assembly.
Solution Approach 2:
The blind holes are pre-formed in the sealing elastomer base during its manufacturing process, before assembly. The resistors are pre-positioned within these blind holes. This preliminary action eliminates the need for complex real-time positioning and drilling operations during assembly, enabling automated assembly lines to efficiently incorporate the stem assembly into the envelope.
3Ease of manufacture
If single resistor is used, then structure is simple, but heat dissipation is insufficient and assembly is complex
Solution Approach 1:
Two resistors are combined within the same blind hole structure, with the first resistor positioned in the first blind hole and the second resistor in the second blind hole of the sealing elastomer base. This merging approach improves heat dissipation by providing multiple heat dissipation paths while maintaining assembly simplicity through the use of pre-formed blind holes that guide resistor placement.
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 solution effectively prevents water entry, enhancing the service life of the luminaire and simplifying assembly by ensuring a tight fit of resistors and elastomer base, thereby improving waterproofing and manufacturing efficiency.
Implementation Method 1
a sealing elastomer base with an elastic waterproof seal
Implementation Method 2
The stem assembly includes a first resistor, an LED strip light and a second resistor electrically connected in sequence
Data Source
AI summary
The disclosure relates to the technical field of bulbs, and discloses a multi-resistor waterproof bulb structure including a plastic base and at least one resistor. A first metal support wire passes through a first clamping seat to a first guide hole in sequence and clamps and fixes the resistor into the seat, and the wire extends outward and is electrically connected to a strip light. The disclosure has the following advantages: 1. By changing the structure, the resistor is directly clamped to the plastic base, so the clamping and fixation effects are good. 2. The assembly is easier: the resistor can be directly inserted into the clamping seat to realize fixation, and no displacement will occur to the resistor, so that the resistor is more stable in subsequent welding. 3. A process of pressing and fixing the resistor is eliminated, thereby saving the production and manufacturing cost.