Lighting Apparatus Interference Fit Lamp Pole Waterproofing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing outdoor lighting apparatuses have inadequate waterproofing, leading to damage when rainwater enters and contacts the LED beads and printed circuit boards, resulting in the apparatus being scrapped.
Innovation Solution
A lighting apparatus design featuring a lampshade with a mounting part that engages with a cylindrical lamp pole via interference fit, through holes for electronic components and wires, a supporting platform to prevent PCB disengagement, and a sealing ring for enhanced waterproofing, combined with a manufacturing method that includes injection molding and reflow soldering for cost-effectiveness and simplicity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If resin adhesive is filled in two sides of the LED bead and the printed circuit board to achieve waterproof effect, then rain water cannot directly contact the LED bead and printed circuit board, but the waterproof effect is only average and the entire lighting apparatus is scrapped once rain water enters and damages the printed circuit board
Solution Approach 1:
The patent divides the waterproof protection into segments: the lampshade body provides outer protection, the mounting part with interference fit creates a sealed connection, and the supporting platform protects the PCB. This segmented approach replaces the single resin adhesive packaging, achieving better waterproof effect while simplifying the overall structure.
Solution Approach 2:
The patent extracts the PCB and electronic components from the resin adhesive packaging and places them on a supporting platform inside the lampshade body. This allows the PCB to be protected by the lampshade structure itself rather than relying on resin adhesive, improving waterproof reliability while reducing packaging complexity.
2Reliability
If the lamp pole diameter decreases gradually from the first end to the second end, then the mounting part can be engaged with the lamp pole by interference fit for better sealing, but the manufacturing precision requirement increases
Solution Approach 1:
The patent changes the diameter parameter of the lamp pole, making it decrease gradually from the first end to the second end. This parameter change enables interference fit between the mounting part and lamp pole, creating a sealed connection that improves waterproof reliability while the gradual change reduces the need for tight tolerances.
Data Source
AI summary
The present invention discloses a lighting apparatus and manufacturing method thereof, including a lampshade, a lamp holder, a light source component and an electronic component; the light source component and the electronic component are electrically connected with each other; the lampshade includes a lampshade body and a mounting part; the mounting part is inserted into the lamp holder; the mounting part is engaged with a lamp pole by interference fit; the lamp pole is provided with through holes for the electronic component or wire to pass through; each of the through holes passes from a first side of the lamp pole to a second side of the lamp pole. The electronic component of the lighting apparatus of the present invention passes through the through hole of the lamp pole, thereby effectively prevent displacement of the electronic component and decreasing attrition rate of the lighting apparatus.