Watertight Angle Sensor Cap Structure for Drainage and Secure Coupling
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Solution Overview
Problem
Existing angle sensor covers are prone to water accumulation and difficult to couple securely with jigs, which compromises the integrity and functionality of the angle sensing device.
Innovation Solution
A watertight cap with a tapered lower portion, intermediate portion, and cap portion, featuring ring-shaped protrusions and slit grooves, designed to securely fit over the cover and prevent water ingress while facilitating easy assembly with a jig.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional angle sensor cover is used, then the device structure is simple, but water accumulation occurs and water ingress is not prevented
Solution Approach 1:
The cap is divided into multiple functional segments: a lower portion with tapered shape for water drainage, an intermediate portion for sealing engagement with the cover, and an upper portion for structural support. This segmentation allows each part to perform its specific function optimally while preventing water accumulation and ingress.
Solution Approach 2:
The cap extends in the vertical dimension with a tapered lower portion that protrudes downward, creating a drainage pathway in the vertical direction. This dimensional extension prevents water from accumulating on the cover surface by directing it downward away from the sensor housing.
2Ease of operation
If a simple cap structure is used, then manufacturing is easy, but coupling with the cover is difficult and secure attachment is not achieved
Solution Approach 1:
The cap features asymmetric coupling structures including ring-shaped protrusions on the intermediate portion and slit grooves on the upper portion. These asymmetric features provide directional guidance and secure engagement with corresponding features on the cover, making coupling easy while ensuring reliable attachment.
Solution Approach 2:
The intermediate portion acts as an intermediary element between the lower tapered portion and the upper cap portion. It provides the coupling interface with ring-shaped protrusions that engage with the cover, facilitating easy and secure attachment while maintaining the overall cap structure.
3Reliability
If the cap seals tightly to prevent water ingress, then waterproof performance is improved, but assembly with the cover becomes more difficult
Solution Approach 1:
The cap is designed with pre-formed coupling features including ring-shaped protrusions and slit grooves that are created during manufacturing. These preliminary actions prepare the cap for easy assembly with the cover, ensuring both tight sealing and straightforward installation without requiring additional assembly steps.
Data Source
AI summary
Disclosed herein is a watertight cap for an angle sensor cover. The watertight cap installed on a cover installed on an upper end of an angle sensor housing includes a lower portion having a tapered shape toward a lower side, an intermediate portion extending upwardly from the lower portion, a cap portion having a larger diameter than a diameter of the intermediate portion, and an upper portion protruding upwardly from an upper surface of the cap portion.