Electromagnetic Relay Plate Pivoting Piece Design
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Solution Overview
Problem
Conventional electromagnetic relays with a triumvirate spring assembly face issues of increased parts and assembly processes, variation in operating characteristics, and limited electrification performance due to the dual functions of elastic support and electrification, which restrict the enhancement of electrification characteristics.
Innovation Solution
An electromagnetic relay design featuring a plate-shaped pivoting piece supported by a conductive sheet spring, allowing for reduced parts and assembly processes, with the pivoting piece solely responsible for electrification, enabling a larger cross-sectional area and improved electrification characteristics, and incorporating features like caulking-fixation, elastic tongue pieces, and insulating walls for enhanced performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a triumvirate spring assembly constructed by superimposing three conductive sheet springs is used, then the electrification capability is enhanced, but the number of parts and assembly processes increases and variation in operating characteristics occurs
Solution Approach 1:
The patent merges the elastic support function and electrification function into a single integrated structure. The plate-shaped pivoting piece itself serves as the conductive path for electrification, while the support spring provides elastic support. This eliminates the need for separate conductive components and reduces the number of parts and assembly processes while maintaining reliable electrification capability.
2Reliability
If the cross-sectional area of conductive sheet springs is increased to enhance electrification characteristics, then the electrification performance is improved, but spring loading becomes larger requiring larger driving energy
Solution Approach 1:
The patent segments the functions of elastic support and electrification into separate components. The support spring is designed with optimized cross-sectional area to provide necessary elastic support with minimal spring loading, while the plate-shaped pivoting piece provides the electrification path. This allows each component to be optimized independently, enabling enhanced electrification characteristics without excessive increase in spring loading and driving energy requirements.
3Adaptability or versatility
If a triumvirate spring assembly is used to fulfill both elastic supporting and electrification, then both functions are achieved, but variation in operating characteristics is easily caused by accumulation of assembling errors
Solution Approach 1:
The patent combines the elastic support function and electrification function into separate but integrated components rather than using a multi-layered assembly. The plate-shaped pivoting piece provides the electrification path while the support spring provides elastic support. This reduces the number of assembly interfaces and eliminates the accumulation of assembling errors that would occur in a multi-layered structure, thereby reducing variation in operating characteristics while maintaining dual function capability.
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 design results in a relay with smaller electric resistance, improved energy efficiency, stable operating characteristics, and favorable insulation, achieving high energy efficiency and long-term stability with reduced rattle and displacement risks.
Implementation Method 1
excitation and demagnetization of an electromagnet block housed within a housing
Implementation Method 2
support spring interposed therebetween
Data Source
AI summary
A electromagnetic relay including a plate-shaped pivoting piece (32), one end of which is supported in cantilever state, pivoted by a movable block (40), which reciprocates in the up-down direction on the basis of excitation and demagnetization of an electromagnet block (20) housed within a housing (10, 50), and causes a movable contact (34) formed on the other end of the plate-shaped pivoting piece (32) to make/break contact with an anchored contact (36) formed on the tip section of an anchored contact terminal (35). In particular, the one-end section of the plate-shaped pivoting piece (32) is supported pivotably in cantilever state by the upper end section of a movable contact terminal (31), with a support spring (33) comprising a conductive sheet spring material interposed therebetween.