Electromagnetic Relay Sealant Flow Path Design
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Solution Overview
Problem
The existing electromagnetic relays require multiple steps and increased time for sealing, as sealant needs to be applied to both the bottom surface and side surface to achieve hermetic sealing, complicating the process.
Innovation Solution
The electromagnetic relay design incorporates a case with a flow path for sealant to flow from the outer surface of the bottom peripheral wall section to through holes in the side peripheral wall sections, allowing the sealant to easily cover and adhere the terminal pieces, reducing the number of steps and time required for sealing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If sealant is applied to both bottom surface and side surface to achieve hermetic sealing, then sealing reliability is improved, but number of steps increases and time required increases
Solution Approach 1:
The patent combines multiple sealing locations (bottom surface and side surface) into a single sealant application process by designing a flow path that allows sealant to travel from the application point to all required sealing locations, merging multiple sealing operations into one step
Solution Approach 2:
The flow path acts as an intermediary channel that guides the sealant from the outer surface through the case to reach the through hole, enabling the sealant to reach distant sealing locations without direct application at each point
2Reliability
If sealant is applied to both bottom surface and side surface to achieve hermetic sealing, then sealing reliability is improved, but process complexity increases
Solution Approach 1:
The patent merges multiple sealing operations into a single process step by designing the flow path structure that automatically distributes sealant to all required sealing locations, thereby simplifying the overall sealing process while maintaining hermetic sealing reliability
Solution Approach 2:
The flow path structure enables the sealant to automatically reach all sealing locations through its own flow properties, eliminating the need for complex manual application procedures at multiple locations and reducing process complexity
3Ease of operation
If terminal piece protrudes from side surface, then electrical connection is improved, but sealing difficulty increases
Solution Approach 1:
The flow path serves as an intermediary structure that guides sealant around the terminal piece to the through hole, enabling sealing to be performed despite the terminal piece protruding from the side surface for electrical connection purposes
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 simplifies the sealing process by allowing the sealant to flow and cure in a single application, reducing the complexity and time needed for hermetic sealing while ensuring a stable joint for the terminal pieces.
Implementation Method 1
The case has a flow path along which the sealant applied to the outer surface of the first peripheral wall section flows from the outer surface of the first peripheral wall section to the through hole in the second peripheral wall section
Data Source
AI summary
An electromagnetic relay includes a terminal electrically connected to a fixed contact or a movable contact, and a case accommodating a contact point. The terminal includes a terminal piece having at least a portion located outside the case. The case includes a bottom surface section (first peripheral wall section) and a side surface section (second peripheral wall section). The bottom surface section has a gap to be closed with a sealant and an outer surface to which the sealant is applied. The side surface section has a through hole through which the terminal piece is inserted. The case has a flow path along which the sealant applied to the outer surface flows from the outer surface to the through hole.