Multipurpose bidirectional horn loudspeaker

Abstract

The invention belongs to the field of loudspeaker technology and manufacture and relates to a multipurpose bidirectional horn loudspeaker. The loudspeaker comprises a front horn and a rear horn that are driven by a driving unit; the front horn is connected with a front larynx cover and a front larynx plug of the driving unit; the rear part of the front larynx plug is provided with a front chamberthat is connected with a vibration film; the vibration film is connected with a voice coil paper tape; the rear horn is connected with a rear larynx cover and an internal rear larynx plug in the driving unit; the rear part of the rear larynx plug is provided with a rear chamber; the position between the front and the rear larynx plugs, namely, the center of the driving unit, is provided with a magnetic circuit system and a vibration system; and a front radiating horn and a rear radiating horn commonly use one magnetic circuit system and one vibration system. The loudspeaker has the beneficialeffects that the electro-acoustic conversion efficiency of the loudspeaker is improved greatly, the energy-saving and material-saving effect is outstanding, the heating condition of the driving unit is greatly improved, therefore, the damage possibility of the key part voice coil affecting the reliability of the loudspeaker is reduced, the service life of the loudspeaker is prolonged, the using cost is reduced, the usage is convenient and a large amount of electric energy and raw material resources are saved.

Description

technical field [0001] The invention belongs to the field of loudspeaker technology and manufacture, improves the structure of a multipurpose horn loudspeaker for public sound reinforcement, wired broadcasting and electroacoustic alarm, and particularly relates to a multipurpose two-way horn loudspeaker. technical background [0002] The horn speakers currently used are all a drive unit (commonly known as the sound head) connected to a horn (or a group) to radiate sound waves in one direction, and there are also cases of individual radiation in different directions, but the drive unit has only one radiation port (such as figure 1 As shown), because the diaphragm of the drive unit is in a two-way radiation state driven by electromotive force, the unidirectional radiation actually only uses a part of the sound energy converted by electricity, and the rest of the energy is converted into useless energy inside the unit. mechanical energy and thermal energy, so the electroacousti...

AI Technical Summary

Problems solved by technology

The general method of use in the countryside is to hang two or two pairs (four) of horn speakers with opposite directions on the pole or tree pole, which not only fails to make full use of the electroacoustic conversion efficiency of the speaker, but also increases the cost, resulting in waste of resources

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