阅读说明：本技术 振膜和音频设备 (Vibrating diaphragm and audio equipment ) 是由 江加宏 董洪俊 于 2020-06-05 设计创作，主要内容包括：本发明涉及音频设备技术领域,提出一种振膜和音频设备。该振膜包括振膜折环和振膜胴体；振膜折环设置为环形,振膜折环包括折环部；振膜胴体位于振膜折环内,并与振膜折环的内环连接；其中,折环部包括多个曲面膜体,多个曲面膜体设置为同心环形,多个曲面膜体依次相互外切连接为一体,且相邻两个曲面膜体的突出方向相反,相邻两个曲面膜体的轴向截面关于相邻两个曲面膜体的连接线的中心点中心对称。当振膜上下振动时,振膜折环受力均衡,提升振膜的振动顺性,符合运动动力学的要求,提升音频设备的效能转换；在保证振膜振动幅度的要求下,特别是低频时,降低振膜的高度,适用于超薄型音频设备,兼顾超薄和低频不失真。(The invention relates to the technical field of audio equipment, and provides a vibrating diaphragm and audio equipment. The vibrating diaphragm comprises a vibrating diaphragm folding ring and a vibrating diaphragm body; the vibrating diaphragm folding ring is arranged in a ring shape and comprises a folding ring part; the vibrating diaphragm trunk is positioned in the vibrating diaphragm folding ring and connected with the inner ring of the vibrating diaphragm folding ring; the ring folding part comprises a plurality of curved surface film bodies, the curved surface film bodies are arranged in a concentric ring shape, the curved surface film bodies are sequentially connected into a whole in an externally tangent mode, the protruding directions of the two adjacent curved surface film bodies are opposite, and the axial cross sections of the two adjacent curved surface film bodies are symmetrical about the center point of the connecting line of the two adjacent curved surface film bodies. When the vibrating diaphragm vibrates up and down, the stress of the folded ring of the vibrating diaphragm is balanced, the vibration compliance of the vibrating diaphragm is improved, the requirement of motion dynamics is met, and the efficiency conversion of audio equipment is improved; under the requirement of guaranteeing vibrating diaphragm vibration amplitude, especially during the low frequency, reduce the height of vibrating diaphragm, be applicable to ultra-thin type audio equipment, compromise ultra-thin and low frequency undistorted.)

1. A diaphragm, comprising:

the vibrating diaphragm folding ring is arranged in a ring shape and comprises a folding ring part;

the vibrating diaphragm trunk is positioned in the vibrating diaphragm folding ring and connected with the inner ring of the vibrating diaphragm folding ring;

the bending ring part comprises a plurality of curved surface film bodies, the curved surface film bodies are arranged in a concentric ring shape and are connected into a whole in a sequentially and externally tangent mode, the protruding directions of the curved surface film bodies are opposite, and the axial cross sections of the curved surface film bodies are symmetrical about the central points of the connecting lines of the curved surface film bodies.

2. The diaphragm of claim 1, wherein the diaphragm edge further comprises:

the edge pressing part is arranged in a ring shape concentric with the folded ring part, is positioned outside the folded ring part and is connected with the outer ring of the folded ring part;

and the edge pasting part is arranged in an annular shape concentric with the folded ring part, is positioned in the folded ring part and is connected between the folded ring part and the vibrating diaphragm body.

3. The diaphragm of claim 1, wherein the axial cross section of the curved membrane body includes two parallel curves, and the curves are circular arcs or elliptical arcs.

4. The diaphragm of claim 1, wherein the number of the curved membrane bodies is two.

5. The diaphragm of claim 1, wherein the diaphragm body is configured as a flat plate or a horn.

6. An audio device, comprising:

the diaphragm of any one of claims 1 to 5.

7. The audio device of claim 6, further comprising:

the magnetic conduction base is provided with a blind hole;

the first magnet is arranged in the blind hole;

the washer is arranged on one side of the first magnet, which is far away from the magnetic conduction base;

the second magnet is arranged on one side, far away from the magnetic conduction base, of the washer, and gaps are formed among the first magnet, the washer, the second magnet and the hole side wall of the blind hole;

the vibrating diaphragm is arranged on one side of the second magnet, which is far away from the magnetic conduction base;

the basin frame is connected between the magnetic conduction base and the vibrating diaphragm folding ring of the vibrating diaphragm;

and the voice coil is connected to the vibrating diaphragm body of the vibrating diaphragm and extends to the gap between the magnetic conduction base and the washer.

8. The audio device as recited in claim 7, wherein the thickness of the sidewall of the magnetically permeable base is greater than the thickness of the bottom wall.

9. The audio device of claim 7, further comprising:

the elastic wave is sleeved outside the voice coil and is positioned in the basin frame; the elastic wave comprises a plurality of arc-surface circular rings which are concentrically arranged.

10. The audio device of claim 9, wherein the arcuate ring of the damper proximate the voice coil abuts the diaphragm carcass such that a gap width between the arcuate ring of the damper proximate the voice coil and the magnetically conductive base is greater than a gap width between the arcuate ring of the damper distal the voice coil and the frame.

Technical Field

The invention relates to the technical field of audio equipment, in particular to a vibrating diaphragm and audio equipment comprising the vibrating diaphragm.

Background

With the development of science and technology, people have higher and higher requirements on audio equipment, and the requirements on miniaturization, lightness and thinness in the aspect of appearance volume and undistorted in the aspect of performance are required; the existing audio equipment is difficult to give consideration to both ultra-thin and low-frequency undistorted.

Therefore, it is necessary to develop a new diaphragm and an audio device including the diaphragm.

The above information disclosed in this background section is only for enhancement of understanding of the background of the invention and therefore it may contain information that does not constitute prior art that is already known to a person of ordinary skill in the art.

Disclosure of Invention

The invention aims to overcome the defect that the prior art cannot give consideration to both ultrathin property and low-frequency distortionless property, and provides a diaphragm which can give consideration to both ultrathin property and low-frequency distortionless property and an audio device comprising the diaphragm.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

According to an aspect of the present disclosure, there is provided a diaphragm including:

the vibrating diaphragm folding ring is arranged in a ring shape and comprises a folding ring part;

the vibrating diaphragm trunk is positioned in the vibrating diaphragm folding ring and connected with the inner ring of the vibrating diaphragm folding ring;

the bending ring part comprises a plurality of curved surface film bodies, the curved surface film bodies are arranged in a concentric ring shape and are connected into a whole in a sequentially and externally tangent mode, the protruding directions of the curved surface film bodies are opposite, and the axial cross sections of the curved surface film bodies are symmetrical about the central points of the connecting lines of the curved surface film bodies.

In an exemplary embodiment of the present disclosure, the diaphragm edge further includes:

the edge pressing part is arranged in a ring shape concentric with the folded ring part, is positioned outside the folded ring part and is connected with the outer ring of the folded ring part;

and the edge pasting part is arranged in an annular shape concentric with the folded ring part, is positioned in the folded ring part and is connected between the folded ring part and the vibrating diaphragm body.

In an exemplary embodiment of the present disclosure, the curved membrane body has an axial cross section including two mutually parallel curves, and the curves are circular arcs or elliptical arcs.

In an exemplary embodiment of the present disclosure, the number of the curved film bodies is two.

In an exemplary embodiment of the present disclosure, the diaphragm body is provided in a flat plate shape or a horn shape.

According to an aspect of the present disclosure, there is provided an audio apparatus including:

the diaphragm of any preceding claim.

In an exemplary embodiment of the present disclosure, the audio apparatus further includes:

the magnetic conduction base is provided with a blind hole;

the first magnet is arranged in the blind hole;

the washer is arranged on one side of the first magnet, which is far away from the magnetic conduction base;

the second magnet is arranged on one side, far away from the magnetic conduction base, of the washer, and gaps are formed among the first magnet, the washer, the second magnet and the hole side wall of the blind hole;

the vibrating diaphragm is arranged on one side of the second magnet, which is far away from the magnetic conduction base;

the basin frame is connected between the magnetic conduction base and the vibrating diaphragm folding ring of the vibrating diaphragm;

and the voice coil is connected to the vibrating diaphragm body of the vibrating diaphragm and extends to the gap between the magnetic conduction base and the washer.

In an exemplary embodiment of the present disclosure, a thickness of a sidewall of the magnetically permeable base is greater than a thickness of a bottom wall.

In an exemplary embodiment of the present disclosure, the audio apparatus further includes:

the elastic wave is sleeved outside the voice coil and is positioned in the basin frame; the elastic wave comprises a plurality of arc-surface circular rings which are concentrically arranged.

In an exemplary embodiment of the disclosure, the part of the elastic wave close to the voice coil is abutted against the vibrating diaphragm body, so that the width of a gap between the elastic wave close to the arc ring of the voice coil and the magnetic conductive base is greater than the width of a gap between the elastic wave far away from the arc ring of the voice coil and the basin frame.

According to the technical scheme, the invention has at least one of the following advantages and positive effects:

the vibrating diaphragm comprises a vibrating diaphragm folding ring and a vibrating diaphragm body connected with the vibrating diaphragm folding ring, wherein the vibrating diaphragm folding ring comprises a folding ring part, the folding ring part comprises a plurality of curved surface film bodies, the curved surface film bodies are all arranged in a concentric ring shape, the curved surface film bodies are sequentially connected into a whole in an externally tangent mode, the protruding directions of two adjacent curved surface film bodies are opposite, and the axial sections of the adjacent curved surface film bodies are centrosymmetric about the central point of the connecting line of the adjacent curved surface film bodies. On one hand, when the vibrating diaphragm vibrates up and down, the stress of the bending ring of the vibrating diaphragm is balanced, the vibration compliance of the vibrating diaphragm is improved, the requirements of motion dynamics are met, and the efficiency conversion of audio equipment is improved; on the other hand, the height of the vibrating diaphragm is reduced under the requirement of ensuring the vibration amplitude (particularly at low frequency), so that the vibrating diaphragm is suitable for ultrathin audio equipment and is ultrathin and undistorted at low frequency.

Drawings

The above and other features and advantages of the present invention will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings.

FIG. 1 is a schematic diagram of an exemplary embodiment of a diaphragm in the related art;

FIG. 2 is a schematic diagram of a structure of another exemplary embodiment of a diaphragm in the related art;

FIG. 3 is a schematic diagram of a structure of yet another exemplary embodiment of a diaphragm in the related art;

FIG. 4 is a schematic structural diagram of an exemplary embodiment of a diaphragm of the present disclosure;

FIG. 5 is a schematic diagram of a diaphragm of the present invention in comparison with the diaphragm of FIG. 3;

FIG. 6 is a schematic diagram of a diaphragm of the present invention in comparison with the diaphragm of FIG. 2;

FIG. 7 is an enlarged partial schematic view of the portion indicated by H in FIG. 4;

FIG. 8 is a schematic cross-sectional structural view of an exemplary embodiment of an audio device of the present invention;

FIG. 9 is a schematic bottom view of FIG. 8;

fig. 10 is a left side view of fig. 8.

The reference numerals of the main elements in the figures are explained as follows:

1. folding the diaphragm; 11. pressing edge parts; 12. a folded ring portion (in the related art); 12a, a corrugated portion (in the present invention); 121. a first curved surface film body; 122. a second curved surface film body; 13. d, edge pasting;

2. a vibrating diaphragm body;

3. a magnetic conductive base; 4. a first magnet; 5. washer; 6. a second magnet; 7. a basin stand;

8. a voice coil; 81. a support; 82. a coil;

9. elastic wave; 10. and (7) installing holes.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus their detailed description will be omitted.

Referring to fig. 1, the diaphragm in the related art includes a diaphragm edge 1 and a diaphragm body 2. The diaphragm edge fold may include a bead portion 11, an edge fold portion 12, and a welt portion 13, which are concentrically disposed. The bending part 12 can include an annular curved surface film body, and the curved surface film body is protruded to one side of the bonded vibrating diaphragm body 2, the vibrating diaphragm body 2 is connected with the welt part 13, and the vibrating diaphragm body 2 is set to be horn-shaped. The diaphragm in this figure is high in height, cannot meet the requirements of ultrathin audio equipment, and is weakened in support stability, and lateral vibration resonance is more obvious due to the high height.

Referring to fig. 2, the diaphragm in the related art includes a diaphragm edge 1 and a diaphragm body 2. The diaphragm in this figure has the same structure as the diaphragm in fig. 1 except that the diaphragm body 2 is set in a flat plate shape. The vibrating diaphragm in the figure is high in height, the requirements of ultrathin audio equipment cannot be met, and the stable sizing and the transverse vibration resonance are more obvious.

Referring to fig. 3, the diaphragm in the related art includes a diaphragm edge 1 and a diaphragm body 2. The vibrating diaphragm carcass 2 in this figure sets up to flat, and vibrating diaphragm book ring 1 can include the curved surface membrane body of a plurality of annular, and the radius of curvature of a plurality of curved surface membrane bodies is inequality, and the shared width is different moreover, leads to producing great inhibitory property to the vibration compliance, and unfavorable vibration system compliance is optimized.

The vibrating diaphragms in the related art are all provided with the unbalanced design of the vibrating diaphragm folding rings 1, so that when the audio equipment vibrates in the working state up and down, resistance is insufficient in forward vibration, resistance is excessive in reverse vibration, vibration is unbalanced, and distortion is ultrahigh.

The present example embodiment provides a diaphragm, and as shown in fig. 4, the diaphragm may include a diaphragm edge 1 and a diaphragm body 2; the vibrating diaphragm corrugated rim 1 is arranged in a ring shape, and the vibrating diaphragm corrugated rim 1 can comprise a corrugated rim part 12 a; the vibrating diaphragm body 2 is positioned in the vibrating diaphragm folding ring 1 and is connected with the inner ring of the vibrating diaphragm folding ring 1; the curved surface film bodies are sequentially connected into a whole in an externally tangent mode, the protruding directions of the curved surface film bodies are opposite, and the axial cross sections of the curved surface film bodies are adjacent to each other, and the central points of the connecting lines of the curved surface film bodies are symmetrical in center.

Referring to fig. 5, for the correlation technique, when the vibrating diaphragm vibrates up and down, the stress of the vibrating diaphragm folding ring 1 is balanced, the vibration compliance of the vibrating diaphragm is improved, the requirement of the motion dynamics is met, the vibrating process of the vibrating diaphragm is blocked less and the stress is balanced, and the efficiency conversion of the audio equipment is improved. Referring to fig. 6, compared to the related art, under the requirement of ensuring the vibration amplitude of the diaphragm (especially, when the diaphragm is low frequency, the amplitude is large when the diaphragm is low frequency, and therefore the height is high), for the diaphragm with the same radial size, the height of the diaphragm is reduced (the height of the corrugated portion 12a in this exemplary embodiment is half of the height of the corrugated portion 12 in the related art), which is suitable for an ultra-thin audio device, and solves the problem of lack of low frequency response of the ultra-thin audio device, improves the bandwidth of the audio device and the improvement of low frequency distortion, and considers both ultra-thin and low frequency distortion free.

In the present exemplary embodiment, the diaphragm edge fold 1 may include a bead portion 11, an edge fold portion 12a, and a welt portion 13, which are concentrically disposed. The edge pressing portion 11 is formed in a circular ring shape, and an inner ring of the edge pressing portion 11 is connected to an outer ring of the ring folding portion 12 a. In addition, the crimping portion 11 may also be provided in a square ring shape, an oval ring shape, or the like, as necessary. The ring-bending part 12a is arranged for ensuring the axial movement and the limited transverse movement of the vibrating diaphragm carcass 2 along the audio equipment, and simultaneously plays a role in blocking the circulation of the vibrating diaphragm carcass 2.

Referring to fig. 7, the corrugated portion 12a may include two curved film bodies, i.e., a first curved film body 121 and a second curved film body 122. The first curved surface film body 121 and the second curved surface film body 122 are both arranged in a circular ring shape and are concentrically arranged. In addition, the curved membrane body can be also arranged into a square ring shape, an oval ring shape and the like which are adaptive to the curved membrane body according to requirements.

The axial section of the first curved film body 121 includes two parallel curves, both of which are semi-circular arcs, and for convenience of description, the two curves are a first inner curve L1 and a first outer curve L2. The axial section of the second curved film body 122 also includes two parallel curves, both of which are semi-circular arcs, and for convenience of illustration, the two curves are a second inner curve L4 and a second outer curve L3. The radius of curvature of the first outer curve L2 is the same as the radius of curvature of the second outer curve L3, and the opening width is also the same; the radius of curvature of the first inner curve L1 is the same as the radius of curvature of the second inner curve L4, and the opening width is also the same; the axial cross section of the first curved film body 121 and the axial cross section of the second curved film body 122 are made to be centrosymmetric about the center point O of the connecting line AB therebetween.

The first inner curve L1 and the second outer curve L3 are connected in an externally-tangent mode, the first outer curve L2 and the second inner curve L4 are connected in an externally-tangent mode, two adjacent curved film bodies are sequentially connected in an externally-tangent mode into a whole, and the protruding directions of the two adjacent curved film bodies are opposite.

However, the first cambered membrane body 121 and the second cambered membrane body 122 are different in annular diameter. The inner ring of the first curved film body 121 is connected to the outer ring of the second curved film body 122, i.e. the diameter of the inner ring of the first curved film body 121 is equal to the diameter of the outer ring of the second curved film body 122; the outer ring of the first curved film body 121 is connected to the inner ring of the pressure edge part 11, i.e. the diameter of the outer ring of the first curved film body 121 is equal to the diameter of the inner ring of the pressure edge part 11; the inner ring of the second curved film body 122 is connected to the outer ring of the hem portion 13, and the diameter of the inner ring of the second curved film body 122 is equal to the diameter of the outer ring of the hem portion 13.

The two curved surface film bodies are externally tangent and connected to form a wave shape, the second curved surface film body 122 protrudes to one side of the pasting vibrating diaphragm body 2, and the protruding direction of the first curved surface film body 121 is opposite to the protruding direction of the second curved surface film body 122.

In addition, in other example embodiments of the invention, the first inner curve L1 and the first outer curve L2 may be elliptical arcs or sine wave-like arcs, i.e., the radius of curvature at each location of the first inner curve L1 is different, and the radius of curvature at each location of the first outer curve L2 is also different; the second inner curve L4 and the second outer curve L3 may be elliptical arcs or sine-wave-like arcs, that is, the radius of curvature of each point of the second inner curve L4 is different, and the radius of curvature of each point of the second outer curve L3 is also different. Three or more curved film bodies may be provided, the three or more curved film bodies having the same radius of curvature but different annular diameters. Three or more curved surface membrane bodies are sequentially connected in an externally tangent mode to form a wavy shape, namely the protruding directions of two adjacent curved surface membrane bodies are opposite.

In the present exemplary embodiment, the thickness of the blank holder portion 11 is greater than the thickness of the flap portion 12 a. Of course, the thickness of the blank holder portion 11 may be equal to that of the flap portion 12 a.

In the present exemplary embodiment, the welt portion 13 is provided in a circular ring shape, an outer ring of the welt portion 13 is connected to an inner ring of the second curved film body 122, and an inner ring diameter of the second curved film body 122 is equal to an outer ring diameter of the welt portion 13. In addition, the welt portion 13 may be formed in a square ring shape, an elliptical ring shape, or the like as needed.

In the present exemplary embodiment, the diaphragm body 2 is configured in a flat plate shape, and the diaphragm body 2 is connected to the edge attaching portion 13, specifically, the diaphragm body 2 is bonded to one surface of the edge attaching portion 13. Of course, the diaphragm body 2 can also be configured in a horn shape.

The material of the vibrating diaphragm folding ring 1 can be one of cloth, foam, rubber and composite materials, and the material of the vibrating diaphragm folding ring 1 can be the same as the material of the vibrating diaphragm carcass 2.

The present exemplary embodiment provides an audio apparatus, which is provided in an axisymmetric shape as shown with reference to fig. 8, 9 and 10 (in fig. 10, a part of the frame 7 is removed so that the spider 9 can be exposed), and therefore, a left side view, a right side view, a front view and a rear view are the same, and therefore, only the left side view is provided and the remaining views are omitted. The audio device may include a magnetically conductive base 3, a first magnet 4, a washer 5, a second magnet 6, a frame 7, a voice coil 8, and a diaphragm. The specific structure of the diaphragm adopting the above-mentioned diaphragm has already been described in detail, and therefore, the details are not repeated here.

A blind hole is formed in the magnetic conduction base 3, and the first magnet 4 is arranged in the blind hole; the washer 5 is arranged on one side of the first magnet 4 far away from the magnetic conduction base 3; the second magnet 6 is arranged on one side of the washer 5, which is far away from the magnetic conduction base 3; and gaps are arranged among the first magnet 4, the washer 5, the second magnet 6 and the side wall of the blind hole. The basin frame 7 is connected between the magnetic conduction base 3 and the vibrating diaphragm; the voice coil 8 is connected to the diaphragm and extends to the gap between the magnetic conduction base 3 and the washer 5.

In the present exemplary embodiment, the magnetically conductive base 3 is provided as a bottomed cylinder. The magnetic conduction base 3 is made of iron. The thickness of the side wall of the magnetic conduction base 3 is larger than that of the bottom wall, the thickness of the bottom wall of the magnetic conduction base 3 is the vertical distance between the bottom wall surface of the blind hole and the surface, far away from the first magnet 4, of the magnetic conduction base 3, and the thickness of the side wall of the magnetic conduction base 3 is the thickness of the wall of the circular cylinder connected with the bottom wall. The bottom wall thickness of the magnetic conduction base 3 is reduced, the stroke of the audio equipment is increased, namely, the clearance position of the voice coil 8 in the vibration process is increased, and the thickness of the side wall of the magnetic conduction base 3 is increased, so that the magnetic conduction performance requirement of the magnetic conduction base 3 is ensured. Of course, the magnetic conduction base 3 can also be configured as a corresponding bottom-sealed square cylinder, a bottom-sealed oval cylinder, and the like.

In the present exemplary embodiment, the first magnet 4 is provided in the blind hole, and the first magnet 4 is a main magnet. The washer 5 is arranged on one side, far away from the magnetic conduction base 3, of the first magnet 4, and the washer 5 is used for magnetic conduction. A second magnet 6 is arranged on one side of the washer 5, which is far away from the magnetic conduction base 3, the second magnet 6 is an auxiliary magnet, and the thickness of the first magnet 4 is larger than that of the second magnet 6. First magnet 4, washer 5 and second magnet 6 all set up to circular platelike, and its diameter can be the same, and its diameter is less than the aperture of blind hole, makes and is formed with the clearance between first magnet 4, washer 5 and second magnet 6 and the hole lateral wall of blind hole. Of course, the first magnet 4, the washer 5 and the second magnet 6 may be configured to have a square shape, an oval shape, or the like.

In the present exemplary embodiment, the diaphragm is disposed on a side of the second magnet 6 away from the magnetic conductive base 3, the frame 7 is connected between the top surface of the magnetic conductive base 3 and the bottom surface of the edge pressing portion 11 of the diaphragm edge folding ring 1, and the frame 7 supports the diaphragm. The radial dimension of the frame 7 is larger than that of the magnetic conduction base 3, so that a spacing space is formed between the frame 7 and the voice coil 8. The basin stand 7 is arranged in an integral annular shape, the basin stand 7 comprises a bottom plate, a side cylinder and a top plate, the bottom plate is arranged in an annular shape, and the bottom plate is connected with the top surface of the magnetic conduction base 3; the side cylinder is cylindrical and is connected with the outer ring of the bottom plate; the top plate is annular, the inner ring of the top plate is connected to the top surface of the side barrel, and the top plate is connected with the edge pressing part 11. An observation window can be arranged on the basin stand 7, and the internal condition of the basin stand 7 can be checked through the observation window. The frame is provided with a mounting hole 10, and the audio equipment can be fixed through the mounting hole 10.

In the present exemplary embodiment, the voice coil 8 may include a support 81 and a coil 82, the voice coil 8 is a driving unit of the diaphragm body 2, and when a sound current signal is applied to the voice coil 8, the voice coil 8 vibrates to drive the diaphragm body 2 to vibrate. The support 81 is connected to the vibrating diaphragm body 2 of the vibrating diaphragm and extends to the gap between the magnetic conduction base 3 and the washer 5, and the coil 82 is wound on the support 81 in the gap between the magnetic conduction base 3 and the washer 5.

In the present exemplary embodiment, the audio device may further include a damper 9, and the damper 9 is sleeved outside the support 81 of the voice coil 8 and is located inside the frame 7, that is, the damper 9 is located in the space formed by the frame 7 and the support 81 of the voice coil 8. The elastic wave 9 is used for supporting the joint part of the voice coil 8 and the vibrating diaphragm body 2 and ensuring the connection part to be vertical without deflection. The damper 9 may be provided in an integral annular shape. The elastic wave 9 is provided with a plurality of cambered surface circular rings, the cambered surface circular rings are sequentially connected into a whole by the inner ring and the outer ring, and the cambered surface circular rings are concentrically arranged, so that the voice coil 8 freely moves up and down in the magnetic gap without transverse movement, and the voice coil 8 is ensured not to collide with the magnetic conduction base 3.

In this example embodiment, the cambered surface ring of bullet ripples 9 that is close to voice coil 8 supports with vibrating diaphragm trunk 2 and leans on, and the axial length of this cambered surface ring is longer, and the part that leans on with vibrating diaphragm trunk 2 of this cambered surface ring sets up to the plane, makes the clearance width between the cambered surface ring that is close to voice coil 8 of bullet ripples 9 and the magnetic conduction base 3 be greater than the clearance width between the cambered surface ring of keeping away from voice coil 8 of bullet ripples 9 and basin frame 7. Make the one side that is close to voice coil 8 of bullet ripples 9 keep away from magnetic conduction base 3, avoid bullet ripples 9 and magnetic conduction base 3 contact at the vibration in-process, increase the vibration stroke of bullet ripples 9, satisfy ultra-thin design scheme needs.

The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments, and the features discussed in connection with the embodiments are interchangeable, if possible. In the above description, numerous specific details are provided to give a thorough understanding of embodiments of the invention. One skilled in the relevant art will recognize, however, that the invention may be practiced without one or more of the specific details, or with other methods, components, materials, and so forth. In other instances, well-known structures, materials, or operations are not shown or described in detail to avoid obscuring aspects of the invention.

Although relative terms, such as "upper" and "lower," may be used in this specification to describe one element of an icon relative to another, these terms are used in this specification for convenience only, e.g., in accordance with the orientation of the examples described in the figures. It will be appreciated that if the device of the icon were turned upside down, the element described as "upper" would become the element "lower". Other relative terms, such as "high", "low", "top", "bottom", and the like, are also intended to have similar meanings. When a structure is "on" another structure, it may mean that the structure is integrally formed with the other structure, or that the structure is "directly" disposed on the other structure, or that the structure is "indirectly" disposed on the other structure via another structure.

In this specification, the terms "a", "an", "the" and "the" are used to indicate the presence of one or more elements/components/parts/etc.; the terms "comprising," "including," and "having" are intended to be inclusive and mean that there may be additional elements/components/etc. other than the listed elements/components/etc.; the terms "first," "second," and "third," etc. are used merely as labels, and are not limiting on the number of their objects.

It is to be understood that the invention is not limited in its application to the details of construction and the arrangement of components set forth in the description. The invention is capable of other embodiments and of being practiced and carried out in various ways. The foregoing variations and modifications fall within the scope of the present invention. It will be understood that the invention disclosed and defined in this specification extends to all alternative combinations of two or more of the individual features mentioned or evident from the text and/or drawings. All of these different combinations constitute alternative aspects of the present invention. The embodiments described in this specification illustrate the best mode known for carrying out the invention and will enable those skilled in the art to utilize the invention.