Multi-pole magnetization method and device for global heating
A technology of multi-pole magnetization and magnetization direction, applied in the direction of magnetic objects, circuits, electrical components, etc., can solve the problem of multi-pole magnetization of thin magnets, and achieve the effect of eliminating magnetic force and convenient pattern
Active Publication Date: 2022-05-31
ZHEJIANG UNIV
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[0004] In order to solve the problem of multi-pole magnetization of thin magnets, the present invention proposes a multi-pole magnetization method and device for global heating, which adopts the global overall heating method, that is, the magnetized magnet and the magnet that provides the external magnetization magnetic field are heated together, Magnetization is accomplished using the difference in the Curie temperature of the two magnets
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[0035] Example embodiments will be described more fully hereinafter with reference to the accompanying drawings. Example embodiments may, however, be embodied in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete and will fully convey the concept of example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
[0036] The present invention proposes a multi-pole magnetization device for achieving global heating, such as Figure 1-2 As shown, it includes bolts and nuts 1, an upper magnet fixing structure 2, a magnetized magnet 3, a height adjustment block 4, and a lower magnet fixing structure 5. The upper magnet fixing structure 2 includes an upper laminate 21 , an upper magnet 22 , and an upper fixing plate 23 , and the lower magnet fixing str...
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Abstract
The invention discloses a global heating multi-pole magnetization method and device, and belongs to the technical field of magnetism. The method comprises the following steps: firstly, determining a magnetized pattern, splicing external magnet monomers into a pattern shape, symmetrically distributing the external magnet monomers on two sides of a magnetized magnet, and keeping the magnetic pole directions of all the external magnet monomers consistent; a magnetized magnet is fixed between the external magnets on the two sides; all the external magnet monomers and the magnetized magnet are heated, and the heating temperature is higher than the working temperature of the magnetized magnet and is within the working range of the external magnet monomers; at the heating temperature, external magnetic fields are provided by the external magnet monomers at the two sides, so that the magnetized magnets at the positions of the external magnet monomers are locally and reversely magnetized; and after the magnetization is completed, cooling to obtain the multi-pole magnetized magnet. According to the invention, a global heating and local magnetization mode is used, the purpose of completing multi-pole magnetization through one-time global heating can be achieved, and the operation is convenient.
Description
technical field [0001] The invention relates to the field of magnetic technology, in particular to a global heating multi-pole magnetization method and device. Background technique [0002] According to the number of magnetization poles, magnetization can be divided into unipolar magnetization and multi-pole magnetization. At present, the unipolar magnetization technology is relatively mature. The magnetizer is used to magnetize the magnet, including the following two methods: one is constant current magnetization, which can be used for low coercivity permanent magnet materials; the other is Pulse magnetization, through the instantaneous large current to generate excitation magnetic field to magnetize the magnet. The multi-pole magnetization system usually consists of a dedicated magnetizer and a customized magnetization fixture. The magnetizer is used to provide pulse current, and to magnetize the magnet with different shapes, a special magnetization fixture needs to be de...
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IPC IPC(8): H01F13/00
CPCH01F13/00Y02B30/00
Inventor 韩冬邓闰祎朱静嘉周宇喆龚国芳杨华勇
Owner ZHEJIANG UNIV