Corrosion Resistant Automatic Splice with Drainage Openings
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Solution Overview
Problem
Aluminum automatic splices in corrosive environments, such as coastal areas, experience premature failure due to corrosion and degradation, leading to costly replacements and safety concerns, as they are not designed to withstand fault currents or resist corrosive elements effectively.
Innovation Solution
A corrosion-resistant automatic splice with a housing featuring tapered ends, drainage openings in a polar array, and biasing members made from activated stainless steel to prevent corrosive buildup and promote the expulsion of contaminants, ensuring compatibility with the conductor to prevent galvanic corrosion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If drainage openings are added to the splice body to prevent corrosive buildup, then corrosion resistance is improved, but tensile strength is reduced
Solution Approach 1:
The splice body incorporates drainage openings at specific locations (opposite each other at approximately 180 degrees) to enable corrosive element expulsion while maintaining sufficient material in critical load-bearing areas. The openings are strategically positioned to provide corrosion protection without compromising the overall structural integrity and tensile strength of the splice body.
2Ease of manufacture
If the splice body is minimized to reduce material cost, then manufacturing cost is reduced, but corrosion protection is worsened
Solution Approach 1:
The splice body incorporates drainage openings that enable it to self-expel corrosive elements through centrifugal force and capillary action. This self-cleaning mechanism eliminates the need for additional complex corrosion protection systems or maintenance interventions, allowing the splice to maintain its minimized, cost-effective design while achieving superior corrosion resistance through its own operational characteristics.
3Ease of manufacture
If steel plate springs are used to bias the jaws, then manufacturing cost is reduced, but corrosion resistance is worsened
Solution Approach 1:
The biasing members are constructed from corrosion-resistant materials such as stainless steel or aluminum alloy, forming a composite material solution that combines the mechanical functionality of spring biasing with enhanced corrosion resistance. This material selection allows the internal components to withstand corrosive environments without requiring additional protective coatings or systems, maintaining manufacturing efficiency while improving reliability.
4Adaptability or versatility
If the splice is designed for minimal material to remain economically viable, then market competitiveness is improved, but service life in corrosive environments is reduced
Solution Approach 1:
The splice design converts the potential harm of corrosive elements into a beneficial self-cleaning mechanism. The drainage openings enable corrosive contaminants to be expelled from the splice body through centrifugal force during installation and through capillary action during operation, transforming the corrosive environment from a threat into a mechanism that actually cleans and protects the splice, thereby extending service life while maintaining minimal material design.
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 extends the service life of the splice by preventing corrosive buildup and maintaining mechanical integrity, reducing the need for frequent replacements and enhancing safety by withstanding fault currents and corrosive environments.
Implementation Method 1
the plurality of drainage openings are configured to promote the expulsion of corrosive elements from an interior cavity of the splice
Implementation Method 2
a tapered gripping jaw is located at each of the first and second ends adapted for receiving a cable
Implementation Method 3
A first biasing member is adjacent to the first end and a second biasing member is adjacent to the second end
Data Source
AI summary
A corrosion resistant automatic splice having a housing with opposed first and second ends, an interior cavity between the ends, and a plurality of drainage openings disposed between an exterior surface of the housing and the interior cavity. The first and second ends are each adjacent a biasing member or spring. A semi frustoconical gripping jaw or clamp is located at each of the first and second ends adapted for receiving a cable. The drainage openings aid in voiding corrosive contaminants from the interior cavity of the splice.