A car speaker with a long service life

Abstract

The invention provides an automobile loudspeaker with long service life and relates to the loudspeaker field. The loudspeaker comprises a loudspeaker shell, a vibrating diaphragm, a resonance sheet, amovable iron core, a magnetic coil, a fixed iron core tube, a vibrating sheet and a contact conductive mechanism, wherein the contact conductive mechanism comprises a contact contact mechanism and apositioning dehumidification mechanism, the vibrating diaphragm is fixedly connected to the inner wall of the loudspeaker shell, and the surface of the resonance piece is fixedly connected with the surface of the vibrating diaphragm. According to the automobile loudspeaker with the long service life, the contact structure is specially improved; a conventional contact power connection mode is changed, so that the problems that a common loudspeaker contact is simple in structure, the contact point is single and unchanged, and the normal use of the loudspeaker is influenced due to the fact that the loudspeaker is easily burnt or abraded by electric shock at the contact part of the contact point after long-time high-frequency use are effectively solved, and the service life is prolonged.

Description

technical field [0001] The invention relates to the technical field of loudspeakers, in particular to a car loudspeaker with long service life. Background technique [0002] Car speakers are also called car horns. Car horns are mainly divided into air horns and electric horns. At present, in the process of using electric horns, electromagnetic coils are mainly used to vibrate metal diaphragms to produce sound. However, the service life of existing electric horns is relatively short, and there are mainly two reasons for its short service life: one is that because pressing the horn for a long time will easily cause the contact of the horn to be ablated and produce impedance, the current flowing through the electromagnetic coil Weaken, the electromagnetic suction drops and cannot attract the armature to drive the diaphragm to vibrate normally, resulting in hoarseness or even no sound; second, because after a period of use, the contacts are easy to wear and tear, resulting in po...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a car speaker with a long service life, which solves the problem that the contact structure of the general speaker is simple, the contact point is single and unchanged, and the speaker is easy to get an electric shock at the contact point when the speaker is used for a long time at high frequency. Burning or wear, affecting the normal use of the speaker

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