Handle-Operated Linkage for Switch Actuator
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Solution Overview
Problem
Existing electrical switching mechanisms require manual operation to switch pole units between open and closed conditions, often necessitating reaching into the cabinet, which can be inconvenient and pose operational challenges.
Innovation Solution
A linkage system with a rotatable actuator shaft and pivotally coupled links between a handle and a sliding panel, allowing for the actuator shaft to rotate and switch pole units between open and closed conditions without needing to reach inside the cabinet, utilizing a hub and links to transmit pivotal movement into sliding and rotational motion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual operation is used to switch pole units, then the switching function is achieved, but the user must reach into the cabinet which reduces ease of operation
Solution Approach 1:
A linkage mechanism acts as an intermediary between the exterior handle and the interior actuator shaft. The linkage includes a first link connected to the handle, a second link connected to the actuator shaft, and a sliding panel that transmits motion between them, allowing external operation without reaching into the cabinet.
Solution Approach 2:
The linkage mechanism transforms the rotational motion of the handle about a first axis into rotational motion of the actuator shaft about a second axis that is orthogonal to the first axis. This dimensional transformation allows the user to operate the switch from the exterior without reaching inside the cabinet.
2Ease of operation
If a linkage system is introduced to enable exterior operation, then ease of operation is improved, but the device complexity increases
Solution Approach 1:
The linkage mechanism is segmented into distinct functional components: a first link connected to the handle, a second link connected to the actuator shaft, and a sliding panel. This segmentation allows each component to perform a specific function while maintaining overall simplicity and ease of manufacture.
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 convenient and efficient switching of pole units between open and closed conditions via a handle-operated linkage system, ensuring all pole units are synchronized, enhancing user accessibility and operational ease.
Implementation Method 1
A linkage is configured to rotate the actuator shaft in response to movement of the handle pivotally about the orthogonal axis. The linkage includes links that are pivotally coupled in series between the handle and the panel to slide the panel in response to pivotal movement of the handle.
Implementation Method 2
The linkage includes a panel configured to rotate the actuator shaft upon sliding movement of the panel.
Data Source
AI summary
A pole unit has an actuator shaft that is rotatable about a switch axis to switch the pole unit between open and closed conditions. A linkage is configured to rotate the actuator shaft in response to movement of the handle pivotally about the orthogonal axis. The linkage includes a panel configured to rotate the actuator shaft upon sliding movement of the panel. The linkage further includes links that are pivotally coupled in series between the handle and the panel to slide the panel in response to pivotal movement of the handle.