Simultaneous Magnetization of Magnets with Different Coercivities
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Solution Overview
Problem
Existing methods are inefficient, costly, and inflexible for magnetizing multiple magnets with different magnetic coercivities in polarized electromagnetic relays.
Innovation Solution
Simultaneously exposing at least two magnets to a first and then a second magnetic field with opposite directions, where the first field strength is higher than the second, to achieve different magnetizations, using a magnetization device with a coil and adjustable excitation currents.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If multiple magnets with different coercivities are magnetized separately using conventional methods, then each magnet can be precisely magnetized to its required level, but the process becomes time-consuming, complex, and costly
Solution Approach 1:
The patent combines multiple magnets with different coercivities into a single assembly and magnetizes them simultaneously using one magnetization device. This merging approach allows different magnets to be exposed to the same magnetic field conditions at the same time, dramatically improving productivity while maintaining precise control over each magnet's final magnetization state through their inherent coercivity differences
Solution Approach 2:
The patent applies the local quality principle by utilizing the different coercivity properties of different magnets within the assembly. Each magnet responds differently to the same magnetic field based on its local material property (coercivity), allowing precise differentiation of magnetization levels without requiring separate magnetization processes for each magnet
2Manufacturing precision
If multiple magnets with different coercivities are magnetized separately using conventional methods, then each magnet can be precisely magnetized to its required level, but the process requires multiple devices and setups
Solution Approach 1:
The patent merges the function of multiple magnetization devices into a single magnetization device that can handle an assembly containing multiple magnets with different coercivities. This single device performs what would traditionally require multiple separate devices, simplifying the overall system while maintaining the ability to achieve precise magnetization for each magnet type
3Manufacturing precision
If conventional magnetization methods are used for multiple magnets, then each magnet can be magnetized individually, but the process becomes inflexible and costly
Solution Approach 1:
The patent creates a universal magnetization process that can handle magnets with different coercivities using the same device and procedure. The method is flexible and adaptable to various magnet combinations by simply changing the assembly configuration, making the process versatile for different production requirements while maintaining precise magnetization control
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
Enables simple, rapid, and cost-effective magnetization of magnets with different coercivities, allowing them to function as a three-pole magnet assembly.
Implementation Method 1
The magnetization device may comprise a magnetization coil, a device electrically connected to the magnetization coil for generating an adjustable excitation current
Implementation Method 2
simultaneously exposing the magnets magnetized in step a) to a second substantially homogeneous magnetic field having a predeterminable second field strength and a second magnetic field direction opposite to the first magnetic field direction
Data Source
AI summary
A method for magnetizing at least two magnets having different magnetic coercivities, includes the steps of:a) simultaneously exposing the at least two magnets to a first substantially homogeneous magnetic field having a predeterminable first field strength and a first magnetic field direction for completely magnetizing the magnets in the first magnetic field direction;b) simultaneously exposing the magnets magnetized in step a) to a second substantially homogeneous magnetic field having a predeterminable second field strength and a second magnetic field direction opposite to the first magnetic field direction such that the at least two magnets are differently magnetized.