Contactor Indicator Mechanism Integration
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Solution Overview
Problem
Conventional contactor devices experience reduced efficiency and increased malfunction over their working life due to inefficiencies in the mechanism acting on the indicator means, leading to potential faults.
Innovation Solution
The contactor device incorporates a moving mechanism that directly acts on the indicator means, eliminating the need for an additional lever and incorporating an actuator biased to minimize impact, resulting in a more reliable and cost-effective design with a compact structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional lever mechanism is used to act on the auxiliary switch, then the contactor device can indicate contact position, but the efficiency is reduced and malfunctions increase during working life
Solution Approach 1:
The patent combines the function of the moving mechanism and the actuator into a single integrated component. The moving mechanism directly acts on the auxiliary switch button without requiring a separate lever, thereby eliminating the efficiency losses and malfunctions associated with traditional lever mechanisms while maintaining the indicator function throughout the working life of the contactor device
2Reliability
If an additional lever is used to act on the auxiliary switch, then the indicator function can be achieved, but the device complexity increases
Solution Approach 1:
The patent merges the moving mechanism and actuator into one integrated component, eliminating the need for a separate lever. This reduction in the number of parts simplifies the overall device structure, reduces complexity, and improves reliability by removing potential failure points associated with additional mechanical components
Solution Approach 2:
The moving mechanism is designed to perform multiple functions: it simultaneously moves the movable contact element to establish electrical connection and directly acts on the auxiliary switch button to indicate the contact position. This multi-functionality eliminates the need for dedicated separate components, thereby reducing device complexity
3Reliability
If a conventional lever mechanism is used, then the auxiliary switch can be activated, but manufacturing costs increase
Solution Approach 1:
By integrating the moving mechanism and actuator into a single component, the patent reduces the total number of parts that need to be manufactured, assembled, and quality-checked. This integration simplifies the manufacturing process, reduces assembly steps, and lowers manufacturing costs while maintaining reliable indicator actuation throughout the device's working life
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
This configuration enhances the reliability and extends the working life of the contactor device while reducing manufacturing costs, providing a more robust mechanism for indicator actuation and improved arc elimination using ceramic dissipation plates.
Implementation Method 1
When current passes through the magnetic coil, a magnetic field is produced attracting a moving core of the contactor
Data Source
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AI summary
A contactor device (1) for industrial or railway applications comprises a pair of contact elements (8, 10) connected to a pair of terminals (13, 14) of the contactor device (1) having at least one fixed contact (9), a movable contact element (11) having at least one movable contact (12), and a casing (2) for supporting and protecting said fixed and movable contact elements (8, 10, 11). It further comprises a moving mechanism (15) for moving the movable contact element (11) to move the at least one movable contact (12) into contact to the at least one fixed contact (9) to electrically connect the first and second fixed contact elements (8, 10) to one another or apart from the at least one fixed contact (9) to electrically separate the first and second fixed contact elements (8, 10) from one another, and a driving means (16) for activating the moving mechanism (15). The contactor device (1) also comprises an indicator means (27) for indicating a connecting status of the first and second fixed contact elements (8, 10), wherein the moving mechanism (15) is arranged and configured such that it is acting on the indicator means (27) when it is activated by the driving means (16) to move the movable contact element (11) to move the at least one movable contact (12) into contact to the at least one fixed contact (9).