CN-121151773-B - Loudspeaker and flicking and vehicle-mounted audio system thereof

CN121151773BCN 121151773 BCN121151773 BCN 121151773BCN-121151773-B

Abstract

The invention discloses a loudspeaker and a flicking wave and vehicle-mounted audio system thereof. A loudspeaker comprises a support, a vibrating diaphragm, a voice coil and a damper, wherein the vibrating diaphragm is suspended on an open end of the support, the voice coil is connected to the vibrating diaphragm, the damper is connected to the vibrating diaphragm or the voice coil, a main body of the damper comprises a plurality of elastic strips, the elastic strips are distributed at intervals along the circumferential direction of the voice coil, and the elastic strips are provided with an inner end close to the voice coil and an outer end far from the voice coil. The loudspeaker of the invention adopts high elasticity and low distortion elastic wave, and has wider frequency response range and lower distortion.

Inventors

DING XIAOFENG
MU YONGSHENG
GAO PENG
DONG ZHANQING
TANG ZHENYU
XU RENFANG
TANG JIANFENG
SHEN YUEWU
ZHOU JIANMING

Assignees

苏州上声电子股份有限公司

Dates

Publication Date: 20260508
Application Date: 20251118

Claims (13)

1. The loudspeaker comprises a support, a vibrating diaphragm, a voice coil and a damper, wherein the vibrating diaphragm is hung on an open end of the support, the voice coil is connected to the vibrating diaphragm, the damper is connected to the vibrating diaphragm or the voice coil, and the loudspeaker is characterized in that a main body of the damper comprises a plurality of elastic strips which are distributed at intervals along the circumferential direction of the voice coil, and the elastic strips are provided with an inner end which is close to the voice coil and an outer end which is far from the voice coil; The elastic wave comprises a central part, and the inner end of the elastic strip is connected with the central part; The vibrating diaphragm has the front of the outside of forward and speaker and the back of orientation, the bullet ripples is located the front side of vibrating diaphragm, the voice coil loudspeaker voice coil has the tip that wears to the vibrating diaphragm front side, the center portion connect in the tip of voice coil loudspeaker voice coil, the tip of voice coil loudspeaker voice coil is closed by the center portion of bullet ripples.
2. The loudspeaker of claim 1, wherein adjacent ones of the elastic strips have a gap therebetween.
3. The loudspeaker of claim 1, wherein the bounce wave comprises an outer ring, an outer end of the elastic strip being connected to the outer ring.
4. The loudspeaker of claim 1, wherein the bounce wave includes an outer ring surrounding the center portion, an outer end of the elastic strip being connected to the outer ring, adjacent elastic strips being connected only by the outer ring and the center portion.
5. The loudspeaker of claim 4, wherein the length of the resilient strip is greater than the spacing of the inner edge of the outer ring and the outer edge of the center portion.
6. The loudspeaker of claim 5, wherein the elastic wave has a surface opposite the diaphragm, the surface being planar or conical, and the elastic strip has one or more bends extending in the surface.
7. The loudspeaker of claim 4, wherein the outer ring of the damper is connected to the open end of the bracket, and the rear end of the voice coil is inserted into a magnetic circuit behind the diaphragm, the magnetic circuit being fixed to the bracket.
8. The speaker of claim 7, wherein the bracket includes a hollow cup-shaped portion having an open front end, and the magnetic circuit is disposed in the cup-shaped portion and fixed inside a closed bottom plate of the cup-shaped portion.
9. The loudspeaker of any one of claims 1 to 8, wherein the body is centrally symmetrical, the body being entirely on a plane, or the body being entirely on a conical surface, the inner end of the resilient strip being higher than the outer end or the inner end being lower than the outer end.
10. The loudspeaker of any one of claims 1 to 8, wherein the elastic strip is an elongated plastic strip or metal strip, the length-to-width ratio or length-to-diameter ratio of the elastic strip is 5-5000, the elastic strip has a circular or polygonal cross section, or the elastic wave is integrally injection molded from plastic or integrally die-cut from metal sheet, or the elastic wave is exposed to the outside of the loudspeaker.
11. The loudspeaker of claim 1, wherein a voice coil groove is formed in a rear surface of the center portion of the damper, and a front end portion of the voice coil is inserted into the voice coil groove and bonded together by glue.
12. A damper, characterized in that the damper is a damper in a loudspeaker according to any one of claims 1 to 10.
13. A car audio system comprising the speaker according to any one of claims 1 to 10.

Description

Loudspeaker and flicking and vehicle-mounted audio system thereof Technical Field The invention relates to a loudspeaker, a damper and a vehicle-mounted audio system thereof. Background The damper is a key elastic component of the loudspeaker, and is mainly used for limiting radial displacement of the voice coil and ensuring that the voice coil linearly vibrates along a vibration axis in a magnetic field. Currently, the positioning support is generally made of woven materials, rubber and the like, and has the following defects: 1. insufficient elasticity and fatigue. The elastic deformation range of the traditional elastic wave is limited, plastic deformation is easy to occur during high-frequency vibration, so that the voice coil is deviated, distortion is caused, and the elastic attenuation is obvious after long-term use, so that the service life of the loudspeaker is influenced. 2. The frequency response range is narrow. The single material of the rigidity or the flexibility of the elastic wave is difficult to combine the high-frequency response speed and the low-frequency vibration stability, so that the fluctuation of a medium-high frequency band frequency response curve is larger, and the tone quality performance is limited. 3. Poor heat dissipation. Traditional bullet ripples are installed inside the speaker, for example lie in the inner space between vibrating diaphragm and the magnetic circuit, and the heat that during operation produced is difficult to effectively conduct away fast, and high temperature environment can accelerate the material ageing of bullet ripples etc.. 4. Structural design limitations. The elastic wave of the traditional plane or simple fold structure is easy to generate stress concentration during vibration, and the local fracture risk is high. The above information disclosed in the background section is only for enhancement of understanding of the background of the application and therefore it may contain information that does not form the prior art that is already known to a person of ordinary skill in the art. Disclosure of Invention The invention provides a loudspeaker which adopts high-elasticity and low-distortion elastic waves, and has wider frequency response range and lower distortion. The invention also provides a high-elasticity low-distortion elastic wave. One aspect of the invention relates to a loudspeaker, which comprises a support, a vibrating diaphragm, a voice coil and a damper, wherein the vibrating diaphragm is hung on an open end of the support, the voice coil is connected to the vibrating diaphragm, the damper is connected to the vibrating diaphragm or the voice coil, the main body of the damper comprises a plurality of elastic strips which are distributed at intervals along the circumferential direction of the voice coil, and the elastic strips are provided with an inner end which is nearer to the voice coil and an outer end which is farther from the voice coil. In some preferred embodiments, there is a gap between adjacent ones of the elastic strips. In some preferred embodiments, the spring comprises an outer ring to which the outer ends of the elastic strips are connected, or a central portion to which the inner ends of the elastic strips are connected. In some preferred embodiments, the elastic wave includes an outer ring and a central portion, the outer ring surrounds the central portion, an outer end of the elastic strip is connected to the outer ring, an inner end of the elastic strip is connected to the central portion, and adjacent elastic strips are connected only through the outer ring and the central portion. In some preferred embodiments, the length of the elastic strip is greater than the spacing of the inner edge of the outer ring and the outer edge of the central portion. In some more preferred embodiments, the elastic wave has a surface opposite to the diaphragm, the surface being a plane or conical surface, and the elastic strip has one or more bending portions extending in a bending manner in the surface. In some more preferred embodiments, the diaphragm has a front surface facing the front and the outside of the speaker and a rear surface facing the rear, the damper is located on the front side of the diaphragm, the outer ring of the damper is connected to the open end of the bracket, the voice coil has a front end portion penetrating to the front side of the diaphragm, the center portion is connected to the front end portion of the voice coil, the rear end portion of the voice coil is inserted into a magnetic circuit behind the diaphragm, and the magnetic circuit is fixed to the bracket. In some more preferred embodiments, the bracket comprises a hollow cup-shaped portion with an open front end, and the magnetic circuit system is disposed in the cup-shaped portion and fixed inside a closed bottom plate of the cup-shaped portion. In some more preferred embodiments, the elastic wave is disposed between the diaphragm and the magnetic c