Lower clamping plate structure for loudspeaker

Abstract

The invention discloses a lower clamping plate structure for a loudspeaker, and belongs to the field of loudspeakers. The lower clamping plate structure for the loudspeaker is inserted into a voice coil and used for fixing a permanent magnet, and comprises: a lower clamping plate, wherein the lower clamping plate is movably connected with the voice coil, the interior of the lower clamping plate is conducted and is fixedly provided with a sealing plate, and the sealing plate divides the lower clamping plate into two independent and conducted cavities; an air inlet mechanism which is arranged in one of the cavities and is used for sucking external air into a space formed between the voice coil and the lower clamping plate when the voice coil vibrates upwards; an exhaust mechanism which is arranged in the other cavity so as to enable hot air in a space formed between the voice coil and the lower clamping plate to be exhausted when the voice coil vibrates downwards; and a filtering assembly which is arranged on the lower portion of the lower clamping plate, wherein the filtering assembly is used for purifying air entering the lower clamping plate so as to adsorb dust in the air entering the lower clamping plate.

Description

technical field [0001] The invention belongs to the technical field of loudspeakers, and in particular relates to a lower splint structure for loudspeakers. Background technique [0002] Speaker splint. The material is soft iron, that is, pure iron, also called electrical iron. The main characteristic is magnetic conductivity, but there is no residual magnetism. Even after the magnetic field disappears, its magnetism will also disappear immediately. The purity and quality of this iron directly affect the efficiency of the speaker. Important parameters such as nonlinear distortion, among which the thickness of the splint affects the stroke of the speaker. The T iron splint of the long-stroke speaker is very thick, that is, it can cut parallel and uniform magnetic lines of force throughout the entire stroke of the voice coil. The smaller the gap between the splint and the T-iron center column, the smaller the power required for voice coil movement, and the higher the efficien...

AI Technical Summary

Problems solved by technology

[0003] In the traditional loudspeaker equipment, the heat dissipation of the loudspeaker mainly depends on the through holes opened on the basin frame for air exchange. This kind of heat dissipation method is relatively simple and cannot carry out more effective heat dissipation. Vibration achieves air exchange, and the same distance leads to poor heat dissipation. Now a speaker with a lower splint structure is proposed to dredge the air to improve heat dissipation efficiency

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