Test Switch Indicator Assembly for Clear Pole Position Inspection
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Solution Overview
Problem
Existing test switch assemblies for electrical switchboards require visual inspection to verify closed positions, which is challenging due to similar colors of switches and bases, leading to potential operational failures and safety risks.
Innovation Solution
Incorporation of indicators in a different color from the handle, which can be retrofitted onto existing test switches, providing clear contrast for open and closed positions, thus enhancing visibility and reducing the need for complete assembly replacement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If visual inspection is used to verify switch positions, then inspection can be performed, but inspection accuracy deteriorates due to similar colors of switches and bases
Solution Approach 1:
The patent applies color changes by providing an indicator in a second color that is different from the first color of the handle. This color differentiation creates visual contrast that enables accurate identification of open test switch positions, directly resolving the inspection accuracy problem caused by similar colors of switches and bases.
2Illumination intensity
If complete assembly replacement is performed to improve visibility, then visibility improves, but manufacturing costs and complexity increase
Solution Approach 1:
The patent applies segmentation by separating the indicator from the handle, allowing the indicator to be retrofitted independently onto existing test switches. This modular approach improves visibility without requiring replacement of the entire assembly, thereby reducing manufacturing complexity and costs.
Solution Approach 2:
The patent introduces an indicator as an intermediary element that couples with the handle to provide visual indication. This intermediary component achieves improved visibility while maintaining compatibility with existing test switch assemblies, avoiding the need for complete replacement.
3Ease of manufacture
If indicators are retrofitted onto existing test switches, then costs are minimized and operations continue, but indicator visibility must be sufficient for detection
Solution Approach 1:
The patent ensures the indicator is provided in a second color different from the first color of the handle, creating sufficient visual contrast for easy detection. This color differentiation maintains low retrofitting costs while ensuring the indicator is easily detectable and visible.
Data Source
AI summary
A test switch assembly for testing electrical switchboard devices is provided. The test switch assembly includes a test switch including a handle, the handle having a first color. The handle includes a label holder including a front, the label holder defining a label slot in the front, the label slot sized to receive a label. The handle further includes a handle body extending from the label holder and defining a tie bar aperture sized to receive a tie bar configured to connect the test switch with one or more other test switches in the test switch assembly. The test switch assembly further includes an indicator coupled with the handle body of the test switch, the indicator having a second color different from the first color, the indicator exposing the tie bar aperture.