Armature Plate Demagnetization Openings for Faster Switch Release
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Solution Overview
Problem
Existing electromagnetic switches struggle to reduce disconnection time effectively without increasing power consumption, which is crucial for maintaining operational stability in applications like energy storage and charging devices.
Innovation Solution
A magnetically attachable electromagnetic switch with a specially designed armature plate featuring demagnetization openings that disrupt the magnetic path, allowing for quicker disconnection without affecting the power supply level, utilizing a configuration that maintains the integrity of the magnetic attraction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the power supply is increased to improve the output power of the coil, then the disconnection speed is improved, but the power consumption increases
Solution Approach 1:
The armature plate is segmented by providing demagnetization openings that divide the magnetic path into multiple segments. This segmentation allows the magnetic field to be quickly disrupted during disconnection by redirecting flux through alternative paths, enabling fast disconnection without increasing coil power output.
Solution Approach 2:
Demagnetization openings are strategically positioned at specific locations on the armature plate where they most effectively disrupt the magnetic path. This local modification creates preferential flux paths that accelerate demagnetization at critical areas, achieving rapid disconnection while maintaining normal operating magnetic field strength.
2Loss of time
If the disconnection time is reduced to meet safety requirements, then the operational stability is improved, but the magnetic path disruption requires additional power
Solution Approach 1:
The demagnetization openings are pre-configured in the armature plate structure, creating ready-made alternative flux paths before power is applied. When disconnection is needed, these pre-positioned openings immediately provide pathways for magnetic flux redistribution, enabling rapid demagnetization without requiring additional power input at the moment of disconnection.
Solution Approach 2:
The demagnetization openings act as intermediary structures that facilitate the transition from magnetized to demagnetized states. By providing alternative flux paths through these openings, the magnetic field can be rapidly redistributed and dissipated, serving as a mediator that accelerates the disconnection process without requiring increased power supply energy.
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 switch achieves reduced disconnection times without increasing power consumption, ensuring operational stability and meeting the quick circuit-breaking requirements of electrical devices.
Implementation Method 1
the operation of electromagnetic switches is based on the use of the magnetic force generated by the inductive coil before and after the supply of power
Implementation Method 2
a magnetic force is generated to drive the armature plate to pivot towards the iron core
Implementation Method 3
the elastic part is arranged on the fixed plate and an end of the elastic part is fixed to the fixed plate
Data Source
AI summary
A magnetically attachable electromagnetic switch includes: a coil assembly, a bracket assembly, a magnetic pole assembly, and a fixed contact assembly. The coil assembly has an induction coil and an iron core. The bracket assembly has a fixed plate on the coil assembly to form an extension end and an elastic part on the fixed plate. The magnetic pole assembly has an armature plate and a contact conduction part fixed to the armature plate and having at least one movable contact. The armature plate is pivoted to the extension end and fixed to the elastic part, situated at an ON position when in an electrically disconnected status, and situated at an OFF position when in an electrically connected status. The fixed contact assembly has a base and at least one fixed contact on the base. The armature plate includes at least one demagnetization opening.