Electromagnetic switch having display light
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Solution Overview
Problem
Conventional electromagnetic switches lack visual differentiation between power-on and power-off states, making it difficult for operators to determine the machine's status, leading to potential misjudgment and safety risks.
Innovation Solution
An electromagnetic switch equipped with a display light that illuminates when powered on, utilizing a contact unit, button unit, and a display light system to visually indicate the power state through a light-emitting member connected to a circuit board and conductive wires.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional electromagnetic switch is used without additional components, then the device complexity is low, but the operator cannot distinguish the power state visually leading to misjudgment and safety risks
Solution Approach 1:
The patent combines the display light function with the electromagnetic switch structure by integrating the light-emitting member into the housing and connecting it through the circuit board and electrode sheet assemblies. This merging approach adds visual indication capability while maintaining a unified compact structure, resolving the contradiction between improved safety through visual feedback and minimized device complexity
Solution Approach 2:
The electromagnetic switch is enhanced with multi-functionality by incorporating the display light system that serves dual purposes: indicating power state and providing visual feedback for operational status. The same electrode sheet assembly serves both as an electrical contact component and as a connection path for the display light circuit, achieving universal functionality that improves safety without proportionally increasing complexity
2Loss of information
If the display light system is added to indicate power state, then the operator can distinguish power state visually, but the device complexity increases due to additional components
Solution Approach 1:
The circuit board acts as an intermediary component that connects the electrode sheet assemblies to the light-emitting member. This intermediary structure efficiently transmits both electrical power and control signals, enabling the display light function while maintaining organized wiring and reducing the complexity burden of the additional information display capability
Solution Approach 2:
The display light system is nested within the existing electromagnetic switch housing structure. The light-emitting member is positioned inside the housing and integrated with the internal components, allowing the information display function to be embedded within the original device boundaries rather than adding external complexity
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
The display light effectively distinguishes the power state, reducing operator misjudgment and enhancing safety by providing a clear visual indication of the switch's status.
Implementation Method 1
The electromagnetic unit includes a coil seat and an actuating plate. The coil seat is disposed in the accommodating room. The actuating plate is pivotally connected to the coil seat. The actuating plate is pivoted back and forth by an external force.
Implementation Method 2
The display light includes a circuit board, a light-emitting member, and two conductive wires. The light-emitting member is disposed on the circuit board. When the power-on button is pressed to turn on the electricity, the light-emitting member will emit light to remind the operator
Data Source
AI summary
An electromagnetic switch having a display light is disclosed. The electromagnetic switch includes a housing; an electromagnetic unit in the housing; a contact unit in the housing; a button unit having a top seat, a power-on button and a power-off button, wherein the top seat is connected to the housing in a snap-fit manner, the power-on button and the power-off button are slidably connected to the top seat, respectively; a display light that is fixedly connected between the top seat and the power-on button and has a circuit board, a light-emitting member, and two conductive wires. The two conductive wires are connected to the contact unit. When the power-on button is pressed to turn on the electricity, the light-emitting member will emit light to remind the operator. When the power supply is not normal, the electromagnetic switch is powered off to remind the operator of abnormal power supply.