Electromagnetic Relay Partition Wall Synchronizes With Movable Shaft
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Solution Overview
Problem
Conventional electromagnetic relays face issues with foreign matter entering the insertion aperture due to the movement of the contact plate relative to the fixed lateral wall, which can lead to electrical contact failures and reduced reliability.
Innovation Solution
The introduction of a partition-wall component that moves synchronously with the movable contact element and shaft, positioned around the insertion aperture, effectively prevents foreign matter from entering by increasing the path length and creating a labyrinthine structure to block debris.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a fixed lateral wall is used to prevent foreign matter entry, then foreign matter protection is improved, but the structure becomes complex and the contact plate cannot move freely
Solution Approach 1:
The partition wall is made movable to move synchronously with the contact plate, transforming the fixed lateral wall into a dynamic structure that automatically adjusts its position to prevent foreign matter entry while allowing contact plate movement
Solution Approach 2:
The partition wall is integrated with the contact plate as a unified structure, eliminating the need for separate fixed lateral walls and reducing structural complexity while maintaining foreign matter protection
2Reliability
If a fixed lateral wall is used to block foreign matter, then foreign matter protection is improved, but the contact plate movement is restricted
Solution Approach 1:
The partition wall is designed to move synchronously with the contact plate, creating a dynamic barrier that maintains foreign matter protection while accommodating the full range of contact plate motion
3Reliability
If the partition wall is fixed, then foreign matter protection is improved, but the synchronization with contact plate movement is lost
Solution Approach 1:
The partition wall is merged with the contact plate into a single integrated structure, eliminating the need for separate synchronization mechanisms while ensuring automatic coordinated movement
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 configuration significantly reduces the entry of foreign matter into the insertion aperture, enhancing the reliability and longevity of the electromagnetic relay by maintaining clean electrical contacts.
Implementation Method 1
electromagnetic relay includes a movable contact element (22) configured to contact a pair of fixed contacts (211) and to be separated from the pair of fixed contacts (211), a movable shaft (25) configured to move in an axial direction as to cause the movable contact element (22) to contact the pair of fixed contacts (211) and to be separated from the pair of fixed contacts (211)
Data Source
AI summary
A contactor includes a pair of fixed contacts, a movable contact element configured to contact the pair of fixed contacts and to be separated from the pair of fixed contacts, a movable shaft configured to move in an axial direction as to cause the movable contact element to contact the pair of fixed contacts and to be separated from the pair of fixed contacts, and a partition-wall component disposed opposite to the pair of fixed contacts with respect to the movable contact element. The first partition-wall component includes a partition wall provided around the movable shaft. The first partition wall is configured to move synchronously with at least one of the movable contact element and the movable shaft.