Loudspeaker with Fin Reinforced Voice Coil Structure

Abstract

The invention discloses a loudspeaker with a fin-reinforced voice coil structure, which solves the distortion of the loudspeaker, and the performance is not easy to improve. Although the voice coil method mainly used at present has the advantages of low cost and easy production, the vibration system of the loudspeaker has the advantages of eccentric vibration, strength, etc. The problem is difficult to solve. The present invention includes a voice coil, fins, an upper magnetic conduction column and a magnetic conduction column, and is characterized in that: a magnetic gap is formed between the upper magnetic conduction column and the central magnetic conduction column, and the voice coil works in the magnetic gap. The inner wall of the voice coil 1 is connected with a fin, and one end of the fin is connected and fixed on the wall of the voice coil 1, and a fin groove for accommodating the other end of the fin is opened on the magnetic guide column, and the width of the fin groove is At least 0.2mm greater than the fin thickness. The invention provides a voice coil fin structure loudspeaker, the balance performance and the stability performance are greatly improved, and the distortion is greatly reduced compared with the traditional voice coil measurement.

Description

technical field [0001] The invention belongs to the technical field of loudspeakers, in particular to a loudspeaker with a finned reinforced voice coil structure. Background technique [0002] When the speaker is working, the vibration frequency corresponding to the sound of different wavelengths is extremely high, which cannot be observed visually, and needs to be observed by equipment such as a laser vibrometer. Using a professional vibrometer, it can be observed that the diaphragm and voice coil of the speaker’s vibration sound system are constantly twisting and splitting vibrations under working conditions. These are important sources of speaker distortion. Acoustic workers have made improvements to the diaphragm. A lot of work has been done, and many excellent results have been obtained, but the research on the voice coil is relatively lagging behind. The smaller the magnetic gap distance, the larger the magnetic flux, and the higher the efficiency of the speaker. The ...

AI Technical Summary

Problems solved by technology

Previous patents mentioned that multiple voice coils independently drive the same diaphragm. Due to the subtle differences in the magnetic field and coils, they are asynchronous during operation. Two or more asynchronous voice coils drive the same speaker diaphragm, and the distortion rate is high. Driven by a single voice coil; there are some double voice coil patents whose permanent magnets are surrounded by movable voice coils, suspended between the magnetic conductor and the voice coil, without any fixed place, and not manufacturable

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