Sealed Casing Fastener Structure for Waterproof Power Authentication
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Solution Overview
Problem
Conventional electric power safety authentication devices suffer from poor waterproofing due to water infiltration through non-sealed screw connections, leading to short circuits and inconvenient installation, and they also accumulate static electricity, posing risks to device longevity and safety.
Innovation Solution
The device employs a fastener connection structure with clamps and springs to seal the casing connection, using inflatable sealing elements and clamping instead of screws, along with anti-static features like metal gaskets and grounded circuits to manage static electricity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If screw connections are used for installation, then the device can be assembled, but water infiltration occurs through screw holes causing poor waterproofing
Solution Approach 1:
The patent removes screw holes from the casing structure entirely, extracting the harmful element (open holes) that cause water infiltration. Instead of using traditional screw connections, the patent employs a snap-fit structure with positioning protrusions and grooves that eliminate the need for penetration holes, thus solving the waterproofing problem while maintaining installation capability.
Solution Approach 2:
The patent combines the functions of positioning, fastening, and sealing into a single integrated snap-fit structure. The positioning protrusions engage with positioning grooves to simultaneously provide mechanical attachment and create a continuous sealing surface, merging multiple functions that were previously separate (screws for fastening, gaskets for sealing) into one unified structure.
2Ease of repair
If screw connections are used, then assembly is possible, but oxidation and corrosion occur making maintenance difficult
Solution Approach 1:
The patent employs a disposable snap-fit connection structure that is designed for easy replacement rather than long-term durability. The plastic positioning protrusions and grooves can be quickly replaced if worn or damaged, eliminating the need to disassemble and reassemble complex screw connections. This approach prioritizes maintenance convenience over extreme durability, allowing rapid replacement of the entire casing assembly.
3Object-affected harmful factors
If conventional sealing methods are used, then assembly is simple, but static electricity accumulates on the device surface
Solution Approach 1:
The patent introduces an anti-static agent as an intermediary substance applied to the outer surface of the casing. This agent acts as a mediator between the plastic material (which generates static electricity) and the environment, providing continuous static electricity dissipation through its conductive properties. The anti-static agent forms a thin coating layer that maintains electrical conductivity without altering the fundamental plastic structure.
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
This design enhances waterproofing, simplifies installation, expands applicability to various thicknesses, and ensures anti-static protection, improving safety and reliability.
Implementation Method 1
a first spring, and second springs... The first spring is arranged inside the sealing element... The first clamp and the second clamp are each connected to the front casing or the rear casing through the second spring
Implementation Method 2
The sealing element is an inflatable sealing element... A sealing groove that matches the sealing element is provided at connection between the front casing and the rear casing
Data Source
AI summary
Provided is an electric power safety authentication device, including a front casing, a rear casing, a sealing element, and a fastener connection structure. A sealing groove that matches the sealing element is provided at connection between the front and rear casings. The fastener connection structure comprises a first connector, a second connector, a first fastener, a second fastener, a first spring, and second springs. The first fastener is arranged on the front casing, and the second fastener is arranged on the rear casing. The first fastener and the second fastener each comprise a first clamp and a second clamp. The first connector is fit in and fastened to the first fastener, and the second connector is fit in and fastened to the second fastener.