Dual-drive speaker

Abstract

The invention relates to a dual-drive speaker which comprises a U iron, a basin bracket, a magnet, a magnetic pole core, a voice coil, a positioning support chip and a membrane type cone, wherein the positioning support chip comprises a first positioning support chip and a second positioning support chip which are symmetrical, two ends of the first positioning support chip and the second positioning support chip are respectively provided with two first positioning half rings and two second positioning half rings; the two first positioning half rings are connected by a first connecting body, two ends of the first connecting body outwards extend to form two first terminals; the two second positioning half rings are connected by a second connecting body, two ends of the second connecting body outwards extend to form two second terminals; the top of the voice coil is tightly jointed with the lower surfaces of the first positioning half rings and the second positioning half rings; the lower surface of the membrane type cone is tightly jointed with the upper surfaces of the first positioning half rings and the second positioning half rings, and the lower surfaces of the first connecting body and the second connecting body are tightly jointed with the upper surface of the outer edge of the basin bracket. The invention has skillful and reasonable structure, stable work, thin structure and less distortion.

Description

technical field [0001] The invention belongs to the technical field of electroacoustics, and relates to a loudspeaker, in particular to a double-drive loudspeaker. Background technique [0002] In the prior art, the loudspeakers used in flat-panel video equipment such as LCD and PDP generally adopt the structure of conical film-shaped sound basin and positioning support piece, and a central hole is opened in the center of the conical film-shaped sound basin. The positioning support piece of the center hole is set under the film-type sound cone, and the voice coil passes through the center hole of the film-type sound cone and the positioning support piece, and the center of the film-type sound cone and the positioning support piece are closely combined on the outer wall of the voice coil Above, the vibration system of the speaker is formed, but the overall height of this structure is relatively thick, which is not suitable for the application of flat-panel TV products that re...

AI Technical Summary

Problems solved by technology

[0002] In the prior art, the loudspeakers used in flat-panel video equipment such as LCD and PDP generally adopt the structure of conical film-shaped sound basin and positioning support piece, and a central hole is opened in the center of the conical film-shaped sound basin. The positioning support piece of the center hole is set under the film-type sound cone, and the voice coil passes through the center hole of the film-type sound cone and the positioning support piece, and the center of the film-type sound cone and the positioning support piece are closely combined on the outer wall of the voice coil Above, the vibration system of the speaker is formed, but the overall height of this structure is relatively thick, which is not suitable for the application of flat-panel TV products that require thinner

The micro-speaker products used in mobile phones and other products have a design that directly fixes the voice coil on the film-type sound cone. The voice coil is driven by a magnetic circuit to move up and down in the magnetic gap, and the voice coil pushes the film-type sound cone to radiate sound. However, although this structure does not require a positioning support piece to ensure that the speaker is made very thin, since the voice coil is only positioned by the rigidity and damping of the film-type sound cone itself, the film-type sound cone itself deforms when the speaker inputs a large signal, resulting in The voice coil of the speaker touches the magnetic gap, producing abnormal sound, which increases the distortion of the speaker, and even fails to work. This technology cannot meet the high-power and high-quality sound requirements of speakers for flat-panel TVs.

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