Electric Switch Indication Device Using Single Rotating Component
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Solution Overview
Problem
Existing low-voltage electric switch devices require multiple indication components to differentiate between normal, non-short-circuit fault breaking, and short-circuit fault breaking states, leading to complexity and increased manufacturing costs.
Innovation Solution
A single indication component with three positions, utilizing a rotatable indication component with a driving mechanism and positioning leg to align different marks with an indication hole, allowing for clear indication of normal connection, non-short-circuit fault breaking, and short-circuit fault breaking states without additional components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If multiple indication components are used to indicate different states (normal breaking, fault breaking, etc.), then the state indication capability is improved, but the mechanical structure complexity increases and manufacturing cost rises
Solution Approach 1:
The patent combines multiple indication components into a single integrated indication component that can display multiple states (normal closing, normal breaking, fault breaking) through different indication positions. This merging approach maintains comprehensive state indication capability while significantly simplifying the mechanical structure and reducing the number of components required.
Solution Approach 2:
The indication component is designed with multi-functionality to perform multiple indication tasks simultaneously. A single component with multiple indication positions can indicate various switch states (closing, normal breaking, fault breaking) that previously required separate components, thereby reducing overall device complexity while preserving information completeness.
2Measurement precision
If multiple indication components are used to differentiate fault states, then the state differentiation precision is improved, but the manufacturing cost increases
Solution Approach 1:
By merging multiple indication components into one integrated component with multiple indication positions, the patent achieves precise state differentiation (normal breaking vs. fault breaking) without the need for multiple separate components, thereby reducing manufacturing costs while maintaining differentiation precision.
Solution Approach 2:
The indication component utilizes different positional parameters (indication positions) to differentiate between various states. By changing the position of the indication component rather than using multiple components, the system achieves precise state differentiation at lower manufacturing cost.
3Loss of information
If multiple indication components are used to indicate fault states, then the state indication completeness is improved, but the device miniaturization becomes more difficult
Solution Approach 1:
The patent merges multiple indication components into a single compact indication component with multiple indication positions. This integration maintains complete state indication capability (normal closing, normal breaking, fault breaking) while significantly reducing the space required, thereby enabling device miniaturization.
Data Source
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AI summary
An indication device of an electric switch comprises an indication component (101), a driving component (103) and a positioning component (102). The indication component (101) has at least three indication positions. Each indication position corresponds to one state of the electric switch, and the indication component (101) shows one indication mark at each indication position. The indication device of electric switch uses a single indication component (101) having at least three indication positions, and the third position is provided via deformation of the indication component (101) itself, thus realizing a simple structure and low manufacturing cost.