Circular Magnetizing Apparatus for Permanent Magnets
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Solution Overview
Problem
Existing devices for magnetizing permanent magnets require significant electrical energy and complex control systems, making them inefficient and costly for mass production.
Innovation Solution
A device using an excitation magnet to generate a magnetic field, which moves in a circular path around the permanent magnet, eliminating the need for electrical energy and allowing for cost-effective mass production by magnetizing the magnets without electrical current.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If electromagnetic coils are used to generate the magnetic field, then the magnetic field can be generated, but significant electrical energy is consumed and complex control systems are required
Solution Approach 1:
The patent replaces the electromagnetic coil system (electrical-mechanical system) with a mechanical system consisting of permanent magnets and field conducting elements. The excitation magnet is moved mechanically along the circumferential direction to bring field conducting elements into contact with the permanent magnet, eliminating the need for electrical energy to generate the magnetic field while maintaining reliable magnetization functionality
Solution Approach 2:
The permanent magnet serves a dual function: it is both the object to be magnetized and the source of the magnetic field for magnetization. By using the permanent magnet's own magnetic field in conjunction with the mechanically moved field conducting elements, the system eliminates the need for external electrical energy input and complex control systems, achieving self-service magnetization
2Measurement precision
If electromagnetic coils with controllers and measurement technology are used, then the magnetizing currents can be monitored, but the device complexity increases
Solution Approach 1:
The patent replaces the complex electrical control and measurement system with a simple mechanical system. The excitation magnet's position along the circumferential direction is controlled mechanically to bring field conducting elements into contact with the permanent magnet at specific positions, eliminating the need for controllers and measurement technology while maintaining precise magnetization control
Solution Approach 2:
The patent extracts and removes the complex control and measurement components (controllers, measurement technology, electrical circuits) from the magnetization system, retaining only the essential mechanical elements (excitation magnet, field conducting elements, permanent magnet) needed to achieve the magnetization function with simplified device complexity
3Productivity
If the excitation magnet moves in a circular path around the permanent magnet, then mass production can be achieved, but the device structure becomes more complex
Solution Approach 1:
The patent employs a circular or annular structure where the excitation magnet moves along the circumferential direction in a circular path around the permanent magnet. This curved geometry enables continuous motion and repeated magnetization cycles, facilitating mass production while the circular structure itself provides inherent mechanical guidance and simplicity
Solution Approach 2:
The field conducting elements serve multiple functions: they conduct magnetic flux from the permanent magnet, provide mechanical contact surfaces for the excitation magnet, and enable the transfer of magnetic field to the permanent magnet being magnetized. This multi-functionality reduces the number of separate components needed, simplifying the overall device structure while supporting mass production
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 solution enables efficient and cost-effective magnetization of permanent magnets, reducing energy consumption and production costs while ensuring high saturation and optimal holding of the magnets within the device.
Implementation Method 1
at least one excitation magnet (110) is used to generate the magnetizing field
Implementation Method 2
the permanent magnet is completely magnetized and preferably magnetically saturated, which is characterized by the fact that the permanent magnet is maximally magnetized
Data Source
Figure 1a~1b
Figure 2~3
AI summary
Apparatus and method for magnetizing at least one permanent magnet, wherein the apparatus comprises a first field control element and a second field control element. In this case, at least one field magnet is formed between the first and the second field control element and a receptacle for the permanent magnet is formed in the second field control element, wherein the field magnet can be moved around the permanent magnet relative to the field control elements and the permanent magnet on a circular path, so that a magnetic field of the field magnet magnetizes the permanent magnet in a magnetization position.