Spring-Gear Operating Mechanism for Larger Switch Opening Gaps

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Solution Overview

Problem

Existing low-voltage electrical switch devices are limited by their size, preventing the achievement of larger disconnecting gaps and faster opening and closing speeds, which affects their performance.

Innovation Solution

An operating mechanism with a second operating shaft assembly, transmission structure, energy storage structure, and power output structure that allows for adjustable breaking speed and opening distance of a conductive device without increasing the device's volume, utilizing a gear radius ratio between the energy storage shaft gear and power output gear shaft to enhance performance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Speed

If the device volume is increased to achieve larger disconnecting gap and faster opening/closing speeds, then the switching performance is improved, but the device size becomes larger

Engineering Contradiction:
Improveopening and closing speedsVSAvoiddevice volume
Core Design Contradiction:
SpeedVSVolume of moving object

Solution Approach 1:

The patent changes the gear radius parameter of the energy storage shaft gear relative to the power output gear shaft. By adjusting this radius ratio, the patent achieves larger disconnecting gaps and faster opening/closing speeds without increasing the overall device volume, as the gear ratio modification allows for more effective utilization of the available space.

Inventive Principle:
Principle #35Parameter changes

2Length of moving object

If the disconnecting gap is increased to improve electrical properties, then the switching performance is improved, but the device volume must be increased

Engineering Contradiction:
Improvedisconnecting gapVSAvoiddevice volume
Core Design Contradiction:
Length of moving objectVSVolume of moving object

Solution Approach 1:

The patent modifies the gear radius parameter to optimize the transmission ratio between the energy storage shaft gear and the power output gear shaft. This parameter change enables the achievement of a larger disconnecting gap within the same device volume by improving the mechanical advantage and motion amplification.

Inventive Principle:
Principle #35Parameter changes

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

Enables flexible adjustment of breaking speed and opening distance of the conductive device, improving switching efficiency and performance without altering the device's volume, thereby overcoming size-related limitations.

Implementation Method 1

the energy storage structure comprises an energy storage shaft and a second energy storage spring structure: one end of the second energy storage spring structure is in driving connection to the energy storage shaft while the other end of the second energy storage spring structure is arranged rotatably: the second transmission structure is in driving fit with the energy storage shaft to drive the energy storage shaft to rotate, so that the second energy storage spring structure stores energy: the second energy storage spring structure releases energy after turning past a second dead center position to drive the energy storage shaft to rotate

Methodology Applied
Scientific EffectElastic potential energy storage and release: Spring

Implementation Method 2

the energy storage shaft comprises an energy storage shaft gear: the power output structure comprises a power output gear shaft: and the energy storage shaft gear is engaged with the power output gear shaft to drive the power output gear shaft to rotate

Methodology Applied
Scientific EffectGear transmission: Gear

Data Source

PatentUS20240212955A1Operating mechanism and switching device
Publication Date: 2024.06.27 CHINT LOW VOLTAGE ELECTRICAL TECH CO LTD
  • US20240212955A1 patent drawing
  • US20240212955A1 patent drawing
  • US20240212955A1 patent drawing

AI summary

An operating mechanism having a second operating shaft assembly a second transmission structure. One end of a second energy storage spring structure drives an energy storage shaft while the other end of the second energy storage spring structure is arranged rotatably. The second transmission structure is in driving fit with the energy storage shaft to drive the energy storage shaft to rotate, so that the second energy storage spring structure stores energy. The second energy storage spring structure releases energy after turning past a second dead center position to drive the energy storage shaft to rotate. The energy storage shaft includes an energy storage shaft gear, a power output structure includes a power output gear shaft, and the energy storage shaft gear is engaged with the power output gear shaft to drive the power output gear shaft to rotate.