Electromagnetic Actuator Spring-Damper Layout for Higher Magnetic Force
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Solution Overview
Problem
Existing electromagnetic actuator devices face challenges in maximizing magnetic force while minimizing transverse mechanical forces, which can lead to kinking and reduced service life due to the presence of elastomeric dampers that hinder magnetic field conduction.
Innovation Solution
Incorporating a damping element between the magnet core and armature elements allows for a reset spring configuration that enhances magnetic flux conduction in the outer diameter region, reducing transverse forces and increasing kink resistance, thereby achieving higher magnetic forces and extended service life.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If an elastomeric damper is arranged in the outer diameter region of the magnet armature element, then damping is provided, but magnetic field conduction is hindered and magnetic force is reduced
Solution Approach 1:
The actuator device is segmented into distinct functional regions: the outer diameter region is dedicated to magnetic flux conduction (free of dampers), while the inner diameter region contains the elastomeric damper. This spatial segmentation allows both damping and magnetic force functions to coexist without interference.
Solution Approach 2:
Different regions of the actuator device are assigned different properties: the outer diameter region has high magnetic permeability (free of elastomeric material) to maximize magnetic flux conduction, while the inner diameter region contains the elastomeric damper for vibration damping. This local differentiation resolves the contradiction between damping and magnetic force.
2Force
If the diameter of the reset spring is reduced to increase magnetic force, then magnetic force is improved, but susceptibility to kinking increases and service life is reduced
Solution Approach 1:
The problem is solved by moving from a single-dimensional solution (reset spring diameter) to a multi-dimensional solution. The reset spring diameter can be optimized for reliability without compromising magnetic force, because the magnetic force is enhanced through the damper configuration in a different spatial dimension (outer diameter region free of dampers).
3Force
If the outer diameter of the magnet armature element is increased to enhance magnetic flux conduction, then magnetic force increases, but the device dimensions and complexity increase
Solution Approach 1:
Instead of uniformly increasing the outer diameter, the solution applies local quality optimization: the outer diameter region is specifically configured to be free of elastomeric dampers to maximize magnetic flux conduction in that critical area, while maintaining compact overall dimensions through efficient inner diameter utilization.
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 enables a substantial increase in magnetic force with constant armature dimensions, reduces tribological wear, and enhances the service life of the actuator device by minimizing transverse forces and kinking risks.
Implementation Method 1
an electromagnetic actuator device (62), in particular an electromagnetic valve device, having at least one magnet core element (10), having a magnet armature element (12), which is supported movably relative to the magnet core element (10)
Implementation Method 2
a damping element (20), which is arranged between the magnet core element (10) and the magnet armature element (12)
Implementation Method 3
having a reset spring (16), which is configured to push the magnet core element (10) and the magnet armature element (12) away from one another
Implementation Method 4
a magnetic flux may be made possible in the outer diameter region of the magnet armature, in particular because the outer diameter region of the magnet armature can be realized so as to be free of a damping element
Data Source
AI summary
An electromagnetic actuator device, in particular an electromagnetic valve device, has at least one magnet core element, has a magnet armature element, which is supported movably relative to the magnet core element and forms a receiving recess, and has a reset spring, which is configured to push the magnet core element and the magnet armature element away from one another, the magnet armature element having an application face, which is arranged inside the receiving recess and on which a first end of the reset spring is supported, wherein the electromagnetic actuator device comprises a damping element, which is arranged between the magnet core element and the magnet armature element and which forms a spring seat, on which a second end of the reset spring, lying opposite the first end, is supported.