A heat dissipation system of a full-frequency loudspeaker

Abstract

The invention relates to a heat dissipation system of a full-frequency loudspeaker. The heat dissipation system comprises a basin frame, a radiator, a magnetic circuit system inserted into the radiator and fixedly connected with the basin frame, a voice coil accommodated in the magnetic circuit system, a dust cover fixedly arranged on the voice coil, and a centering support sheet arranged in the basin frame. The basin frame comprises a basin bottom, a basin side wall, mounting holes formed in the basin bottom, a plurality of heat dissipation holes and steps arranged on the basin side wall. Theradiator is arranged on the outer side of the pot bottom and comprises a plurality of radiating fins arranged at intervals. The magnetic circuit system comprises a magnetic conductive cover, magneticsteel and a magnetic conductive plate, wherein the magnetic steel and the magnetic conductive plate are arranged in the magnetic conductive cover. The magnetic conductive cover comprises a blind hole. The voice coil comprises a coil and a framework connected with the coil. And the dustproof cover is arranged at the free end part of the framework in a covering manner. According to the heat dissipation system of the full-frequency loudspeaker, the heat dissipation efficiency of a full frequency band is improved, so that the electro-acoustic conversion efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of loudspeakers, in particular to a heat dissipation system for full-frequency loudspeakers. Background technique [0002] The loudspeaker, commonly known as the horn, is used to complete the conversion between electrical signals and sound signals, and is an energy conversion device. [0003] As we all know, a speaker usually includes a voice coil, a magnetic circuit system, a magnetic shield, and a sound cone. It should be further explained that the magnetic circuit system generally includes a magnetic permeable cover, and a magnetic steel and a magnetic permeable plate arranged in the magnetic permeable cover. The working principle of the speaker is that when the coil in the voice coil of the speaker is energized, it will interact with the magnetic field of the magnetic circuit system, causing the voice coil to move longitudinally along its central axis, and the sound cone will move along with the voice c...

AI Technical Summary

Problems solved by technology

However, after the coil in the voice coil is energized, due to the relationship between input power and impedance, as the input power increases, the heat generated by the voice coil also increases. When the temperature of the voice coil exceeds the normal standard temperature, it will cause The voice coil is deformed at high temperature, which will damage the voice coil and affect the original sound quality of the speaker and the service life of the speaker. In severe cases, the temperature inside the speaker is too high and the speaker will be burned

This also leads to the fact that when the value of the speaker parameters is constant, it is difficult to greatly increase the actual output sound power by increasing the input electric power due to poor heat dissipation.

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