Circuit Breaker Position Indicator Using Movable Pin
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Solution Overview
Problem
Conventional position indicating apparatuses for circuit breakers are not intuitive, as they require partial or complete display of multiple position indicators, making it difficult to rapidly and precisely check the current position of the main body.
Innovation Solution
A position indicating apparatus featuring a movable pin and display unit that outwardly displays the current position of the main body by interworking with its motion, utilizing a cam member and elastic member to guide and position the pin, and a window to expose only one position at a time, allowing for clear indication of the run or test position.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If multiple position indicators are displayed on the cradle, then all possible positions can be shown, but it becomes difficult to rapidly and precisely check the current position
Solution Approach 1:
The patent extracts only the necessary position information (current position) from the complete set of position indicators. By using a movable pin that highlights only the current position rather than displaying all possible positions simultaneously, the system removes unnecessary visual information that causes confusion while preserving the essential position data.
Solution Approach 2:
The patent applies local quality by making the position indicator selective rather than uniform. The movable pin creates a localized highlight at the current position, giving different visual treatment to the active position versus other positions. This localized emphasis makes the current position immediately identifiable without requiring the user to process all position indicators.
2Loss of information
If a sticker with multiple position indicators is used, then all positions can be indicated, but the current position cannot be intuitively checked
Solution Approach 1:
The patent extracts only the current position information from the complete set of position indicators. The movable pin mechanism selectively displays only the relevant position data (current position) while hiding other positions, thereby preventing information overload and improving identification precision.
Solution Approach 2:
The patent transforms the static sticker into a dynamic indicator system. The movable pin can move to different positions dynamically, allowing the system to adaptively highlight the current position based on the actual state. This dynamic behavior enables precise position identification without requiring multiple static indicators to be simultaneously visible.
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 rapid and precise checking of the main body's position by intuitively displaying only one position, facilitating easy identification of the current state of the circuit breaker.
Implementation Method 1
an elastic member configured to provide an elastic force such that the movable pin contacts with the cam member
Implementation Method 2
a cam member configured to move the movable pin by contacting the movable pin
Data Source
AI summary
Disclosed are a position indicating apparatus for a circuit breaker and a circuit breaker having the same. The circuit breaker having a position indicating apparatus comprises a cradle having a bus bar terminal and a load terminal; a main body having a bus bar connection unit and a load connection unit respectively connected to the bus bar terminal and the load terminal, and configured to be movable to a run position that the terminals and the connection units are connected to each other, and to a test position that the terminals and the connection units are separated from each other; and a position indicating apparatus configured to outwardly display a position of the main body by interworking with motion of the main body, wherein the position indicating apparatus comprises: a movable pin interworking with motion of the main body; and a display unit configured to display a position of the main body corresponding to a position of the movable pin by interworking with motion of the movable pin. Accordingly, the position of the main body of the circuit breaker can be intuitively checked rapidly and precisely.