Loudspeaker magnetic circuit structure and assembling method thereof

Abstract

The invention discloses a loudspeaker magnetic circuit structure and an assembling method thereof. The loudspeaker magnetic circuit structure comprises a spring washer, a magnet and a yoke. The yoke comprises a containing cavity. The spring washer comprises a spring washer body and an edge structure. The spring washer body is of a cavity structure with one open end, and extends outwards from the open edge of the cavity structure to form an edge structure; the edge structure is located inside the containing cavity, and the magnet is located inside the spring washer body. The magnet and the spring washer are fixed through the cavity structure and the edge structure of the spring washer respectively, so that large relative displacement between every two of the magnet, the spring washer, the cavity structure and the edge structure is avoided so as to ensure the concentricity of the spring washer, the magnet and the yoke, and the yield of a finished loudspeaker is improved; when a loudspeaker magnetic circuit is assembled, assembling and magnetizing are performed in succession, the phenomenon that magnetic poles are assembled reversely in the magnet assembling process can be effectively avoided, and therefore the phase equalization of the finished loudspeaker is ensured.

Description

technical field [0001] The invention relates to the technical field of horns, in particular to a horn magnetic circuit structure and an assembly method thereof. Background technique [0002] Such as figure 1 As shown, the existing micro-speaker generally includes a diaphragm, a voice coil, a washer, a magnet, a yoke, a frame and a pad, such as figure 2 As shown, the magnetic circuit part of the horn mainly includes a washer, a magnet and a yoke. When assembling the horn magnetic circuit, first magnetize the non-magnetized magnet with special magnetizing equipment to make it magnetic, and then apply glue on the yoke iron to bond the magnetized magnet to the yoke Finally, put glue on the other side of the magnet and assemble it with the washer. After the glue is cured, the washer, the magnet and the yoke can be firmly bonded together. Since the polarity of the magnet cannot be recognized by the naked eye during manual assembly, it is easy to reverse the polarity. If the po...

AI Technical Summary

Problems solved by technology

Since the polarity of the magnet cannot be recognized by the naked eye during manual assembly, it is easy to reverse the polarity. If the polarity of the magnetic circuit part is reversed, different phases will be generated when the speaker is assembled, which will cause poor sound quality of the speaker. influences

In addition, when the magnetic circuit is assembled, it is all manually aligned and assembled, it is difficult to ensure the concentricity of the yoke, the magnet and the washer, and the glue is easy to cause the magnet and the washer due to its fluidity during the curing process. The eccentric phenomenon of Washer finally affects the performance of the speaker

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