Waterproof Enclosure Sloping Vent Holes Water Discharge
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Solution Overview
Problem
Existing waterproof enclosures for electronic components face challenges in removing water from the surface of waterproof filters, leading to reduced air permeability and potential clogging, especially when exposed to pressurized water jets or tilted positions.
Innovation Solution
A waterproof enclosure design featuring a projecting part with radially arranged vent holes and sloping surface parts that allow water to be easily discharged, combined with a waterproof filter and seal to maintain pressure equality and prevent foreign material contact with the filter.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If vent holes extend perpendicularly through the outer case panel, then water blocking is reduced, but water removal from the filter surface becomes difficult
Solution Approach 1:
The invention introduces sloping surface parts that form inclined surfaces within the vent holes. These curved/angled surfaces allow water to flow down along the slope toward the outer case panel, preventing water accumulation on the waterproof filter surface while maintaining the vertical penetration structure for effective water blocking.
2Reliability
If multiple vent holes are provided, then air permeability is improved, but the risk of all holes being blocked by water increases
Solution Approach 1:
The invention divides the single vent hole into multiple segmented vent holes (first, second, third vent holes) arranged at different positions and orientations. This segmentation ensures that water cannot simultaneously block all vent holes, as they are positioned to face different directions, thereby maintaining air permeability while reducing the risk of complete water blocking.
Solution Approach 2:
The vent holes are arranged asymmetrically with different orientations and positions relative to the outer case panel. The first vent hole extends in a first direction, the second vent hole in a second direction, and the third vent hole in a third direction. This asymmetric arrangement ensures that water flowing in one direction cannot block all vent holes simultaneously.
3Volume of moving object
If the enclosure is designed to be compact, then space efficiency is improved, but water discharge capability is reduced
Solution Approach 1:
The invention utilizes the internal three-dimensional space of the compact enclosure by introducing sloping surface parts that create inclined flow paths within the existing vent hole structures. This dimensional utilization allows water to be effectively discharged along the sloping surfaces toward the outer panel without increasing the overall enclosure volume, maintaining compactness while improving water discharge capability.
Data Source
Figure 1
Figure 2
Figure 3A~3B
AI summary
A waterproof enclosure (100) for enclosing an electronic component includes an outer shell (1) having a penetrating hole (20) formed therethrough, a waterproof filter (3) having air permeability and covering the penetrating hole (20), and a projecting part (10) projecting from an outer surface of the outer shell (1) and covering the penetrating hole (20), wherein the projecting part (10) includes a plurality of vent holes (21) connecting the penetrating hole (20) to outside space, and wherein each of the vent holes (21) is delimited by a sloping surface extending at an angle from the outer surface toward the penetrating hole (20).