A method for simultaneously magnetizing the main and auxiliary magnets of a horn
A speaker main and magnet technology, applied in the direction of magnetic objects, circuits, sensors, etc., can solve the problems of affecting assembly efficiency, large magnetic field difference between main and auxiliary magnets, affecting product quality, etc., achieve strong magnetic force, reduce magnetic field difference, improve The effect of assembly efficiency
Active Publication Date: 2021-08-06
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 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-exclusive inc...
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Abstract
The invention discloses a method for simultaneously magnetizing the main and auxiliary magnets of a horn, comprising: providing an assembled unmagnetized horn, including a main magnet, a magnetic guide plate and an auxiliary magnet sequentially connected together, the main magnet and the auxiliary magnet Not yet magnetized, the magnetic plate includes the first magnetic material layer, the magnetic isolation material layer and the second magnetic material layer; the assembled unmagnetized speaker is placed in the magnetizer, and the magnetizer has the function of acting on the main There are two coils of magnetism and auxiliary magnetism, and a magnetic partition device is set between the two coils; turn on the magnetizer, apply current to the two coils, so that the centers of the two coils generate magnetic lines of force in opposite directions, and the main and auxiliary magnets The magnet is magnetized once simultaneously. The present invention utilizes the magnetic partition material layer to control the direction of the magnetic lines of force, which can realize the simultaneous magnetization of the main magnet and the secondary magnet after being assembled first, improve the assembly efficiency, and ensure the magnetization effect; further, the pulse current magnetization and instantaneous The method of combining large DC magnetization improves the effect of magnetization.
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