Electromagnetic Relay Rotating Bridge Synchronous Contact
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Electromagnetic relays face challenges in maintaining stable electrical conduction and preventing excessive resistance and high temperatures due to complex design and incomplete contact issues.
Innovation Solution
The electromagnetic relay features a rotating bridge with magnetic yoke arms and snap sections, allowing synchronous operation of switch conductive plate assemblies with appropriate force for contact and disconnection, along with a gripper module for stable electrical conduction and reliable separation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the electromagnetic relay design becomes more complicated to meet varying application requirements, then the adaptability and functionality are improved, but the stability of electrical conduction deteriorates
Solution Approach 1:
The relay is divided into multiple independent switch conductive plate assemblies (first, second, third assemblies with movable contacts 1421, 1731, 2241 and fixed contacts 1431, 1711, 2021), each capable of independent contact and disconnection. This segmentation allows the relay to handle multiple circuits simultaneously while maintaining stable electrical conduction in each individual assembly, resolving the contradiction between adaptability and stability.
2Reliability
If the relay structure is simplified to maintain stability, then the reliability is improved, but the ability to meet varying application requirements deteriorates
Solution Approach 1:
The relay employs a universal rotating bridge structure (12) with multiple abutting sections (1221, 1222, 1241) that can simultaneously control multiple switch conductive plate assemblies. This multi-functional design allows a single relay structure to meet varying application requirements for different circuit configurations while maintaining stable electrical conduction through consistent mechanical and electrical design principles across all assemblies.
3Reliability
If the contacts are designed for synchronous contact or disconnection, then the reliability is improved, but the device complexity increases
Solution Approach 1:
Multiple switch conductive plate assemblies are merged into a single integrated relay structure sharing common components: one rotating bridge (12) with multiple abutting sections, one coil set (11) generating the magnetic field, and a unified base (101) structure. This merging achieves synchronous contact and disconnection of multiple contacts through a single actuation mechanism, improving reliability while avoiding the complexity of multiple independent relays.
4Reliability
If appropriate forces are provided to the contacts for contact and disconnection, then the stability of conducted status is improved, but the manufacturing precision requirements increase
Solution Approach 1:
The relay employs dynamic elastic elements (elastic plates 142, 172, 202 with movable contacts) that automatically adjust and apply appropriate contact forces during operation. The elastic nature of these components provides self-regulating force application, ensuring stable conducted status through elastic recovery and consistent contact pressure without requiring extremely tight manufacturing tolerances for force calibration.
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 the stability and reliability of electrical switching, reduces resistance changes, and prevents high temperatures during operation, improving the service life and performance of the electromagnetic relay.
Implementation Method 1
the coil set, installed in the base, and a first magnetic yoke arm and a second magnetic yoke arm extending from both ends of the axis of the coil set respectively; when there is a magnetic change of the coil set, the rotating bridge is rotated accordingly
Implementation Method 2
a rotating bridge, pivoted into the base and disposed on a side of the coil set, and the rotating bridge, comprising: a main body, having a containment and a plurality of magnetic elements installed in the containment; an abutting plate, penetrating through an upper end of the containment, and having a first abutting section and a second abutting section formed on both sides of the upper end of the containment respectively; wherein when there is a magnetic change of the coil set, the rotating bridge is rotated accordingly, so that the first abutting section abuts against an end of the first magnetic yoke arm, or the second abutting section abuts against an end of the second magnetic yoke arm
Data Source
AI summary
An electromagnetic relay includes a casing, a coil set, a rotating bridge, first and second extension arm, first and second switch conductive plate assemblies, and first and second gripper modules. The novel design of the rotating bridge allows the first and second switch conductive plate assemblies to have synchronous contact or disconnection and provide sufficient and appropriate force to a first movable contact and a first fixed contact of the first switch conductive plate assembly and a second movable contact and a second fixed contact of the second switch conductive plate assembly to achieve a stable conduction and ensure a reliable separation for a disconnection, so as to achieve the effects of reducing the excessive change of resistance during operation, preventing high temperature caused by incomplete contacts, and improve application performance.