Conical-Tooth Switch Operating Mechanism for Front and Side Access

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Solution Overview

Problem

Conventional switching devices face challenges in meeting both front and side operation requirements due to their large volume and mechanical complexity, leading to instability and increased wear, which limits their application in space-constrained scenarios.

Innovation Solution

An operating apparatus with a bracket, side operating unit, and front operating unit is designed, incorporating conical teeth and a connecting rod energy storage assembly, allowing for synchronized front and side operations without intermediate gears, reducing volume and improving reliability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If two separate operating mechanisms are used for front and side operations, then both operation modes can be achieved, but the device volume becomes large

Engineering Contradiction:
Improveoperation modeVSAvoiddevice volume
Core Design Contradiction:
Adaptability or versatilityVSVolume of stationary object

Solution Approach 1:

The patent combines front and side operating mechanisms into a single integrated operating apparatus. The driving block with conical teeth serves as a common transmission element that can be actuated from either the front or side, eliminating the need for two separate mechanisms and reducing overall device volume.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The operating apparatus is designed with universal functionality to accept operation inputs from multiple directions (front and side). The conical teeth mechanism can be driven by either a front operating handle or a side operating handle, making the same mechanism serve multiple operational purposes.

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

2Ease of operation

If intermediate gears are used to transmit motion between front and side operations, then motion transmission can be achieved, but the device complexity increases

Engineering Contradiction:
Improvemotion transmissionVSAvoidmechanical complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent removes the intermediate gears from the transmission path. Instead of using complex gear trains to transmit motion between front and side operations, the design directly couples the operating handles to the conical teeth mechanism, simplifying the overall mechanical structure.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The conical teeth on the driving block serve as an intermediary element that directly transmits motion from either operating direction without requiring additional intermediate components. This mediator approach simplifies the transmission mechanism compared to traditional gear-based solutions.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Adaptability or versatility

If multiple separate components are used in the operating apparatus, then functional requirements can be met, but the reliability decreases due to more wear points

Engineering Contradiction:
Improvefunctional requirementsVSAvoidcomponent reliability
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The patent merges multiple functional components into fewer integrated parts. The driving block incorporates the conical teeth directly, eliminating separate gear components. This reduction in component count decreases the number of potential failure points and wear interfaces, improving overall reliability.

Inventive Principle:
Principle #5Merging (Combining)

4Volume of stationary object

If a compact design is implemented, then space utilization improves, but the operational smoothness and stability may deteriorate

Engineering Contradiction:
Improveapparatus volumeVSAvoidoperational stability
Core Design Contradiction:
Volume of stationary objectVSStability of the object's composition

Solution Approach 1:

The patent employs conical teeth with curved surfaces instead of traditional straight-toothed gears. This curved geometry allows for smoother engagement and more gradual force transmission, maintaining operational stability and smoothness while enabling a more compact overall design. The conical shape provides progressive contact that reduces shock loads and improves operational fluidity.

Inventive Principle:
Principle #14Spheroidality (Curvature)

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 apparatus achieves compact, stable, and efficient operation, enabling flexible use in space-constrained environments with reduced wear and lower installation costs, enhancing operational convenience and durability.

Implementation Method 1

a connecting rod energy storage assembly adapted to store and release energy during a switching process of the moving contact assembly between the closed position and an open position

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentEP4614541A1Operating apparatus for switching device and switching device
Publication Date: 2025.09.10 SCHNEIDER ELECTRIC IND SAS
  • EP4614541A1 patent drawingFigure 1
  • EP4614541A1 patent drawingFigure 2
  • EP4614541A1 patent drawingFigure 3

AI summary

Embodiments of the disclosure provide an operating apparatus for a switching device and a switching device. The operating apparatus includes: a bracket including a pair of support plates arranged oppositely; a side operating unit includes: a driving block coupled to a moving contact assembly of a switching device and rotating about a first axis of the driving block, the driving block being formed with a first portion of conical teeth; and the connecting rod energy storage assembly adapted to store and release energy during a switching process of the moving contact assembly between a closed position and an open position; and a front operating unit, including a second portion of conical teeth, coupled to the first portion of conical teeth and adapted to be driven to rotate about a second axis perpendicular to the first axis, so as to drive the driving block to rotate about the first axis.