CN2405389Y - Loud speaker - Google Patents

Abstract

The utility model relates to a loudspeaker which comprises a bracket and a paper cone, wherein, the inside of the paper cone is provided with at least one resonance ring which is an annular thickening protrusion which takes the center of the paper cone as the center of a circle; a tapered outer edge of the paper cone can be added with a balance weight ring of the annular thickening protrusion. The loudspeaker causes a vibrating area of the paper cone to become abundant, a playback frequency band of the loudspeaker is provided, and the positioning of bass, mediant and alt is accurate. Strong sound, weak sound and faint sound can be displayed clearly, the tone quality and the tone quality are rich, and the fidelity of the playback is high.

Description

A kind of loud speaker

The utility model relates to a kind of loud speaker, particularly a kind of loud speaker that comprises support, carton.

In whole sound place system, the quality of loud speaker sound reproduction effect plays a part very important to whole acoustics.Existing loud speaker is owing to cone shape, structure are single, the cone face is level and smooth, the resonance frequency of cone is more single, thereby the loud speaker Hz-KHz is narrow, as 10 inches loud speakers, the low-frequency resonant frequency is about 50 hertz during sound reproduction,, weak effect low to the high frequency sound beyond this frequency, all-bottom sound sound reproduction power, distortion factor height.On the other hand, diffuser exists the inhomogeneous of small thickness, density inevitably, in each moment of sound reproduction, the local random vibration that takes place of each of cone, can produce some noises, and voice coil loudspeaker voice coil the time can produce mixed and disorderly rocking in sound reproduction, reduced fidelity, and the work of power amplifier is also produced harmful effect.

The purpose of this utility model is to provide a kind of resonance frequency band wide, and sound is put the high loud speaker of quality.

For achieving the above object, loud speaker of the present utility model is to increase floating fulcrum in cone, makes cone produce a plurality of resonance frequencys.Its technical solution is that at least one resonance circle is set in cone, and this resonance circle is to be the annular thickening projection in the center of circle with the cone center.

Above-mentioned loud speaker can also increase by a counterweight circle in cone taper outer rim, and this counterweight circle is to be the annular thickening projection in the center of circle with the cone center.

The thickness of above-mentioned resonance circle and counterweight circle, width can be decided bigger loud speaker corresponding increase resonance circle and counterweight circle on the loud speaker size.As resonance circle thickness 0.1 millimeter, the width 2-3 millimeter of 10 inches loud speakers, thickness 1.5 millimeter of counterweight circle, width 10 millimeter; Resonance circle thickness 0.1 millimeter of 5 inches loud speakers, width 1-1.5 millimeter, counterweight circle thickness 1 millimeter, width 5 millimeter.

Above-mentioned resonance circle and counterweight circle can be continuous, also several gaps can occur; Can be in the front of cone, also can be overleaf; Be made by paper, plastics, rubber, perhaps when the production and processing cone, form the thickening projection at desired area.

Loud speaker of the present utility model has enriched the vibration area of cone, increased the playback frequency band of loud speaker, more accurate to the location of bass, middle pitch and high pitch, forte, off beat and small sound can both be known displaying, tonequality, tone color be horn of plenty more, the reproduction fidelity height.

The utility model is described in further detail below in conjunction with accompanying drawing:

Fig. 1 is the utility model loud speaker cutaway view;

Fig. 2 is the utility model loud speaker vertical view.

The loud speaker of Fig. 1, Fig. 2 comprises magnet 1, iron core 2, coil 3, voice coil loudspeaker voice coil 4, support 5 and cone 6, cone 6 is fixing by the elastic tape 7 of support 5, one or more annular protruding resonance circles of thickening such as 8a, 8b are set as floating fulcrum in cone, make between voice coil loudspeaker voice coil and the resonance circle, the cone between the resonance circle, between resonance circle and the support partly produced higher resonance frequency, during sound reproduction, on the basis of body vibration, the superpose vibration of each part of cone.Because cone is whole and each local response frequency has nothing in common with each other, the response frequency of whole like this loud speaker is wideer.The junction that can also be the elastic tape 7 of cone and support in the taper outer rim of cone increases the protruding counterweight circle 9 of annular thickening, and this counterweight circle has increased the weight of whole cone, reduces the low-frequency resonant frequency of cone, strengthens the bass sound reproduction effect of loud speaker.Simultaneously, because the resonance circle, the existence of counterweight circle, the cone vibration area is cut apart, and the inhomogeneous mixed and disorderly vibration that causes small in the cone is suppressed, and the influence that voice coil loudspeaker voice coil and power amplifier are caused reduces, and noise reduces, thereby improves the reproduction fidelity of loud speaker.

Claims (2)

1, a kind of loud speaker that comprises support, cone is characterized in that, described cone has a resonance circle at least, and this resonance circle is to be the annular thickening projection in the center of circle with the cone center.

2, according to the described loud speaker of claim 1, it is characterized in that the taper outer rim of described cone has a counterweight circle, this counterweight circle is to be the annular thickening projection in the center of circle with the cone center.

Images