Multi-Electrode Switch Damping for Simpler Tripping Structure

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Solution Overview

Problem

Existing switches with contact pressure springs face complexity in configuration due to the need for a damping mechanism for each phase, which complicates the design and increases costs while aiming to improve breaking performance.

Innovation Solution

A switch design that includes a plurality of electrode portions with a shared operating device, a first elastic part for contact pressure, and a damping mechanism to dampen the contraction of the first elastic part during tripping operations, simplifying the configuration and reducing the number of damping mechanisms required.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a damping mechanism is provided for each of the three phases, then breaking performance is improved, but the configuration of the switch becomes complicated

Engineering Contradiction:
Improvebreaking performanceVSAvoidconfiguration complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent merges the damping mechanisms into a single shared component that serves all three phases simultaneously. Instead of providing separate damping mechanisms for each phase, the invention integrates one damping mechanism that collectively dampens the contraction of all three contact pressure springs, thereby reducing configuration complexity while maintaining breaking performance across all phases.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The damping mechanism is designed with multi-functionality to handle the damping requirement for all three phases through a single component. This universal damping mechanism can simultaneously dampen the contraction of multiple contact pressure springs, eliminating the need for phase-specific damping mechanisms and simplifying the overall switch configuration.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Force

If contact pressure springs are provided for each of the three phases, then contact pressure is applied to each electrode, but the number of damping mechanisms increases

Engineering Contradiction:
Improvecontact pressureVSAvoidnumber of damping mechanisms
Core Design Contradiction:
ForceVSDevice complexity

Solution Approach 1:

The invention combines multiple damping functions into a single damping mechanism that serves all three phases. While each phase maintains its dedicated contact pressure spring for adequate contact pressure, the damping function is merged into one shared mechanism, reducing the total number of damping mechanisms from three to one.

Inventive Principle:
Principle #5Merging (Combining)

3Device complexity

If a single operating device collectively performs tripping operation, then the operating structure is simplified, but vibration control becomes more difficult

Engineering Contradiction:
Improveoperating structureVSAvoidvibration control
Core Design Contradiction:
Device complexityVSStability of the object's composition

Solution Approach 1:

The damping mechanism acts as an intermediary element between the single operating device and the multiple contact pressure springs. It mediates the mechanical interactions by absorbing and dampening vibrations and shocks generated during tripping operation, thereby maintaining stability and vibration control despite the simplified single operating device structure.

Inventive Principle:
Principle #24Intermediary (Mediator)

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 proposed switch achieves high breaking performance across multiple electrodes with a simplified configuration, reducing complexity and costs while maintaining effective vibration damping.

Implementation Method 1

a first elastic part to apply pressure for bringing the movable electrodes into contact with the fixed electrodes

Methodology Applied
Scientific EffectElasticity: Elasticity

Implementation Method 2

a damping mechanism to damp contraction of the first elastic part during the tripping operation

Methodology Applied
Scientific EffectDamping: Damping

Data Source

PatentUS12334284B2Switch
Publication Date: 2025.06.17 MITSUBISHI ELECTRIC CORP
  • US12334284B2 patent drawing
  • US12334284B2 patent drawing
  • US12334284B2 patent drawing

AI summary

A switch includes: a plurality of electrode portions each including a fixed electrode and a movable electrode, the movable electrode being capable of moving with respect to the fixed electrode; an operating device including a first movable portion for collectively performing tripping operation for the plurality of electrode portions, the movable electrodes being separated from the fixed electrodes in the tripping operation; a second movable portion integrated with the respective movable electrodes of the plurality of electrode portions; a first elastic part that applies pressure for bringing the movable electrodes into contact with the fixed electrodes, the first elastic part being disposed between the first movable portion and the second movable portion; and a damping mechanism that damps contraction of the first elastic part during the tripping operation.