Sealed Conductive Interface for Corrosion-Resistant Electronic Assemblies
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Solution Overview
Problem
Existing electronic devices face challenges in achieving electrical conduction between components while preventing corrosion, especially when using metals with active chemical properties like magnesium alloy, which are prone to corrosion due to moisture ingress and potential galvanic corrosion at electrical conduction points.
Innovation Solution
Incorporating a conductive member, such as a conductive elastic piece, between components and a sealing ring to ensure electrical conduction while sealing the connection, using materials like magnesium alloy for components to reduce weight and incorporating a sealing ring to prevent moisture ingress and corrosion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If electrical conduction is implemented between components using metal materials, then electrical conductivity is improved, but corrosion resistance deteriorates due to moisture ingress and galvanic corrosion
Solution Approach 1:
A conductive member is introduced as an intermediary between the first component and the second component to establish electrical conduction. This conductive member is specifically positioned within the sealed region formed by the sealing ring, serving as a mediator that enables electrical connection while being protected from corrosive environments by the sealing structure.
Solution Approach 2:
The electrical conduction function is extracted from the direct contact interface between the first and second components. Instead of relying on direct metal-to-metal contact between components, the electrical conduction path is separated and implemented through the conductive member, which is positioned within the sealed region and can be optimized for both conductivity and corrosion resistance.
2Object-affected harmful factors
If sealing structure is added to prevent corrosion, then corrosion resistance is improved, but device complexity increases
Solution Approach 1:
The sealing ring serves multiple functions simultaneously: it provides sealing to prevent moisture ingress into the electrical conduction region, and it defines the sealed region that houses the conductive member. By combining sealing and structural support functions into a single component, the overall device complexity is minimized while achieving effective corrosion protection.
3Reliability
If conductive member is added for electrical conduction, then electrical conductivity is improved, but device complexity increases
Solution Approach 1:
The conductive member combines multiple functions into a single component: it provides electrical conduction between the first component and the second component, and it is positioned within the sealed region to be protected from corrosion. This merging of conduction and protection functions into one element simplifies the overall structure compared to having separate conduction paths and protection mechanisms.
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 ensures reliable electrical connections by preventing corrosion, allowing the use of magnesium alloy for components, reducing weight, and maintaining conductivity while minimizing device size and thickness.
Implementation Method 1
The sealing ring is arranged between the first component and the second component... the sealing ring can help seal an electrical conduction portion between the first component and the second component, preventing moisture ingress
Implementation Method 2
the elastic arm portion can undergo a bending deformation toward the first component, thereby storing an elastic force. This elastic force enables the contact portion to maintain stable contact against the second component
Data Source
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AI summary
This application provides an electronic device, which relates to the technical field of electronic products, and can prevent corrosion at an electrical conduction portion between components. The electronic device includes a first component, a second component, a conductive member, and a sealing ring. The conductive member is arranged between the first component and the second component, and is in electrical conduction with the first component and the second component. The sealing ring is arranged between the first component and the second component, one end of the sealing ring in an axial direction faces the first component, and the other end of the sealing ring faces the second component. The conductive member is located within a region surrounded by the sealing ring.