Method for simultaneously magnetizing main magnet and auxiliary magnet of horn at one time
A speaker main and magnet technology, applied in the direction of magnetic objects, sensors, electrical components, etc., can solve the problems of large magnetic field difference between the main and auxiliary magnets, affect assembly efficiency, and affect product quality, so as to reduce the magnetic field difference and improve assembly efficiency , Guarantee the effect of magnetization effect
Active Publication Date: 2020-06-26
东莞市融贤实业有限公司
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Problems solved by technology
However, in actual production and application, the main and auxiliary magnets of the horn are magnetized separately, and then assembled. During assembly, the assembly efficiency is easily affected by magnetic repulsion, and the magnetic field difference between the main and auxiliary magnets is likely to be too large due to separate magnetization. , affecting product quality
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[0030] In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is an embodiment of a part of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.
[0031] The terms "first", "second", "third" and the like in the description and claims of the present invention and the above drawings are used to distinguish different objects, rather than to describe a specific order. Furthermore, the terms "include" and "have", as well as any variations thereof, are intended to cover a non-exclus...
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Abstract
The invention discloses a method for simultaneously magnetizing a main magnet and an auxiliary magnet of a horn at one time, which comprises the following steps: an assembled non-magnetized horn whichcomprises a main magnet, a concentrating flux plate and an auxiliary magnet which are connected together in sequence is provided, the main magnet and the auxiliary magnet are not magnetized yet, andthe concentrating flux plate comprises a first concentrating flux material layer, a magnetic isolation material layer and a second concentrating flux material layer; the assembled non-magnetized hornis placed in a magnetizer, the magnetizer is provided with two coils acting on the main magnet and the auxiliary magnet respectively, and a magnetic isolation device is arranged between the two coils;and the magnetizer is started, a current is applied to the two coils, magnetic lines of force opposite in direction are generated in the centers of the two coils, and the main magnet and the auxiliary magnet are simultaneously magnetized at one time. The magnetic separation material layer is used for controlling the trend of magnetic lines of force, the main magnet and the auxiliary magnet can bemagnetized at the same time after being assembled, the assembling efficiency is improved, and the magnetizing effect is guaranteed. Furthermore, the magnetizing effect can be improved by combining pulse current magnetizing and instantaneous large direct current magnetizing.
Description
technical field [0001] The invention relates to the field of magnetization technology, in particular to a method for simultaneously magnetizing the main and auxiliary magnets of a horn at one time. Background technique [0002] In the current speaker manufacturing process, the magnetic flux density in the magnetic circuit, especially in the magnetic gap Uniform and concentrated methods usually include: (1) using radial magnetic circuits instead of axial magnetic circuits to try to increase the value of φ; (2) increasing auxiliary magnets to reduce magnetic flux leakage and control the direction of magnetic force lines to meet actual needs . [0003] The method for adding an auxiliary magnet includes adding an auxiliary magnet outside the main magnet so that the speaker includes a pair of magnets. However, in actual production and application, the main and auxiliary magnets of the horn are magnetized separately, and then assembled. During assembly, the assembly efficiency ...
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IPC IPC(8): H01F13/00H04R31/00
CPCH01F13/00H01F13/003H04R31/00
Inventor 吴宗汉徐世和曾喜海
Owner 东莞市融贤实业有限公司