CN113141564A

CN113141564A - Speaker and electronic equipment

Info

Publication number: CN113141564A
Application number: CN202010055033.1A
Authority: CN
Inventors: 霍鹏; 赵宏飞; 魏金强; 贺彦国
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2020-01-17
Filing date: 2020-01-17
Publication date: 2021-07-20

Abstract

The application provides a loudspeaker and an electronic device. The loudspeaker comprises a frame, a magnetic circuit system, an elastic wave, a folded ring, a cone and a voice coil. The basin frame, the sound basin and the elastic wave are all in ring shapes. The outer periphery of the frame and the inner periphery of the frame form a height difference in the thickness direction of the loudspeaker. The magnetic circuit system is positioned on the inner side of the basin stand and is fixed on the inner periphery of the basin stand. The outer periphery of the elastic wave is fixed in the middle of the basin frame. The inner periphery of the elastic wave is fixed on the magnetic circuit system. The outer periphery of the folding ring is fixed on the outer periphery of the basin frame and is arranged at intervals with the elastic waves. The outer periphery of the cone is fixed on the inner periphery of the corrugated rim. The middle part of the cone is connected with the middle part of the elastic wave. The inner circumference of the cone is arranged opposite to the magnetic circuit system. One end of the voice coil is fixed on the inner periphery of the cone, and the other end of the voice coil is located in the magnetic gap of the magnetic circuit system. When the speaker is applied to an electronic device, the thickness of the electronic device is thin.

Description

Speaker and electronic equipment

Technical Field

The application relates to the technical field of electroacoustic, in particular to a loudspeaker and electronic equipment.

Background

Electronic products (such as sound boxes, televisions, computers, etc.) are required to be thin. The speaker used as a sound producing component in an electronic product also needs to be thinned correspondingly, and the height of the conventional speaker is relatively large at present, so that the requirement of thinning the speaker cannot be well met.

Disclosure of Invention

The application provides a loudspeaker and an electronic device with a small thickness.

In a first aspect, the present application provides a loudspeaker. The loudspeaker comprises a basin frame, a magnetic circuit system, an elastic wave, a folded ring, a sound basin and a voice coil. The basin frame, the elastic wave, the folding ring and the sound basin are all annular. The basin frame comprises an outer peripheral edge, a middle part and an inner peripheral edge which are sequentially connected, namely the middle part of the basin frame is connected between the outer peripheral edge of the basin frame and the inner peripheral edge of the basin frame. In the thickness direction of the loudspeaker, the outer periphery of the basin frame and the inner periphery of the basin frame form a height difference.

The magnetic circuit system is positioned on the inner side of the basin stand and fixed on the inner periphery of the basin stand. The bullet ripples is including the outer peripheral edge, middle part and the internal periphery that connect gradually, promptly the middle part of bullet ripples is connected in the outer peripheral edge of bullet ripples with between the internal periphery of bullet ripples. The outer periphery of the elastic wave is fixed in the middle of the basin frame. The inner periphery of the elastic wave is fixed to the magnetic circuit system.

The edge folding ring comprises an outer peripheral edge, a middle part and an inner peripheral edge which are sequentially connected, namely the middle part of the edge folding ring is connected between the outer peripheral edge of the edge folding ring and the inner peripheral edge of the edge folding ring. The outer periphery of the folding ring is fixed on the outer periphery of the basin frame and is arranged at intervals with the elastic waves. The sound basin comprises an outer peripheral edge, a middle part and an inner peripheral edge which are sequentially connected, namely the middle part of the sound basin is connected between the outer peripheral edge of the sound basin and the inner peripheral edge of the sound basin. The outer periphery of the cone is fixed to the inner periphery of the corrugated rim. The middle part of the cone is fixed at the middle part of the elastic wave. The inner circumference of the cone is opposite to the magnetic circuit system. One end of the voice coil is fixed on the inner periphery of the cone, and the other end of the voice coil is located in the magnetic gap of the magnetic circuit system.

In this embodiment, the outer periphery of the elastic wave is fixed to the middle of the tub holder. The inner periphery of the damper is fixed to the magnetic circuit system, so that the inner periphery of the cone and the first magnetic conduction piece are not blocked by the damper any more. In other words, the shortest distance between the first magnetic conductive member and the inner periphery of the cone no longer includes the height of the damper in the Z direction. Therefore, the thickness of the speaker in the Z direction is small, which is advantageous for the thin installation of the speaker.

It can be understood that, through will the middle part of sound basin is fixed in the middle part of bullet ripples to the voice coil loudspeaker voice coil drives when the sound basin vibrates along the Z direction, bullet ripples can be right the effort is applyed to the sound basin, in order to avoid the voice coil loudspeaker voice coil reaches the sound basin is along X-Y plane motion, also avoids the voice coil loudspeaker voice coil with the sound basin sways from side to side.

In one implementation, the magnetic circuit system includes an outer magnetic conductive member, a magnetic member, and an inner magnetic conductive member. The magnetic body can be, but is not limited to, magnetic steel. The outer magnetic conductive part comprises a side wall and a bottom wall. One end of the side wall of the outer magnetic conducting piece is fixed on the periphery of the bottom wall of the outer magnetic conducting piece. The outer magnetic conduction piece is annular. The other end of the side wall of the outer magnetic conduction piece is fixed on the inner periphery of the basin frame. The inner periphery of the elastic wave is fixed on the outer magnetic conduction piece.

The side wall of the outer magnetic conduction piece and the bottom wall of the outer magnetic conduction piece enclose an accommodating groove. The magnetic body is positioned in the containing groove and fixed on the bottom wall of the outer magnetic conduction piece. The magnetic body and the side wall of the outer magnetic conduction piece are arranged at intervals. The inner magnetic conduction piece is fixed on the surface of the bottom wall of the magnetic body deviating from the outer magnetic conduction piece. The inner magnetic conduction piece and the side wall of the outer magnetic conduction piece are arranged at intervals, and a magnetic gap is formed between the inner magnetic conduction piece and the side wall of the outer magnetic conduction piece.

It will be appreciated that when the voice coil is located in the magnetic gap between the inner and outer magnetically permeable members, the voice coil is able to move in the Z direction under the magnetic field environment in the magnetic gap. At the moment, the voice coil can drive part of the sound basin to vibrate along the Z direction. The vibration of the cone pushes the compression and expansion of the air near the cone, which generates sound.

In the embodiment, the magnetic circuit system is simple in structure, easy to manufacture and low in input cost.

In one implementation, the outer magnetically permeable member further comprises an extension. The extension part is fixed on the side wall of the outer magnetic conduction part, and the extension part protrudes towards the direction far away from the containing groove. The inner periphery of the damper is fixed to the extension portion. The inner periphery of the basin frame is fixed on the extension part.

In this embodiment, through with outer magnetic conduction spare is provided with the extension to both can utilize the extension is fixed in the middle part of basin frame, in order to guarantee outer magnetic conduction spare with the firm in connection of basin frame can utilize again the extension is fixed in the internal periphery of bullet ripples, in order to guarantee outer magnetic conduction spare with the firm in connection of bullet ripples. It will be appreciated that the extension has the effect of being "one object for multiple purposes".

In one embodiment, the extension part is fixed to the inner periphery of the basin frame through glue, so that the outer magnetic conduction part and the basin frame are guaranteed to have better connection stability.

In one embodiment, the surface of the elastic wave fixed to the extension portion at the inner periphery is a plane. At this moment, the connection of the inner periphery of the damper and the outer magnetic conductive part is more stable, so that the connection firmness of the outer periphery of the damper and the extension part of the outer magnetic conductive part is better.

In one embodiment, the extension is provided with a plurality of recessed areas. The openings of the plurality of concave areas are positioned on the surface of the extension part contacted with the elastic wave. At this time, when the inner circumference of the elastic wave is fixed by the adhesive tape or the liquid adhesive, the adhesive tape or the liquid adhesive may be filled in the recessed area. At this time, the contact area between the inner periphery of the damper and the extension portion is large. The firmness of the connection between the inner periphery of the elastic wave and the extension part is better.

In one implementation, the middle of the frame is stepped, i.e., the middle of the frame has a plurality of surfaces with different height differences. The outer periphery of the elastic wave is fixed on a stepped surface in the middle of the basin frame. At the moment, in the Z direction, the middle part of the basin frame can effectively support the elastic waves so as to ensure the stability of the elastic waves. In addition, the middle part of the basin frame is in a step shape, so that the overall strength of the basin frame is stronger.

In one embodiment, the outer periphery of the elastic wave is fixed on a stepped surface in the middle of the basin frame through glue.

In one implementation, the middle portion of the cone is recessed in a direction close to the elastic wave relative to the inner circumferential edge of the cone and the outer circumferential edge of the cone, and is fixed to the middle portion of the elastic wave.

It can be understood that, through with the middle part of the sound basin is relative the internal periphery of sound basin reaches the outer peripheral edges of sound basin, to being close to the direction of bullet wave is sunken, and is fixed in the middle part of bullet wave, thereby when the voice coil loudspeaker voice coil drove the sound basin vibrates along the Z direction, the bullet wave can be right the effort is applyed to the sound basin, in order to avoid the voice coil loudspeaker voice coil reaches the sound basin is along X-Y plane motion, also avoids the voice coil loudspeaker voice coil with the sound basin sways from side to side.

In one implementation, the middle portion of the cone includes a first curved portion, a flat portion, and a second curved portion. It will be appreciated that the surface of the flat portion is planar. The flat portion is connected between the first curved portion and the second curved portion. The flat part is fixed in the middle of the elastic wave. One side of the first bending part, which is far away from the flat part, is connected with the outer periphery of the sound cone. One side of the second bending part, which is far away from the flat part, is connected to the inner periphery of the sound cone.

In this embodiment, the sound cone is provided with the flat portion, so that the connection area between the middle portion of the sound cone and the middle portion of the damper is large, thereby being beneficial to improving the connection firmness between the sound cone and the damper.

In one implementation, the middle of the elastic wave has a plurality of convex parts arranged at intervals. The convex part is connected with the flat part of the cone, and the surface of the convex part connected with the flat part is a plane. At this moment, the connection mode of the elastic wave and the sound basin is simpler, and the operation is also convenient. In addition, the connection area of the damper and the sound basin is large, so that the connection firmness of the damper and the sound basin is improved.

In one implementation, the middle of the damper has a first protrusion. The first convex part is opposite to the outer peripheral edge of the elastic wave and the inner peripheral edge of the elastic wave, protrudes towards the direction close to the sound basin, and is connected to the middle of the sound basin.

In this embodiment, the first protruding portion protrudes toward the direction close to the cone through the outer periphery of the elastic wave and the inner periphery of the elastic wave, and is connected to the middle of the cone, so that when the voice coil drives the cone to vibrate along the Z direction, the elastic wave can apply an acting force to the cone to prevent the voice coil and the cone from moving along the X-Y plane, i.e., prevent the voice coil and the cone from swinging left and right.

It can be understood that, by protruding the first protruding portion toward the direction close to the cone with respect to the outer peripheral edge of the damper and the inner peripheral edge of the damper and connecting the first protruding portion to the middle portion of the cone, the bending angle of the curved surface formed by the first bending portion, the flat portion, and the second bending portion of the cone can be made smaller, that is, the middle portion of the cone is smoother. In other words, the cone does not affect the appearance of the loudspeaker due to the presence of the large dimples. At this time, the user experience of the speaker is better.

In one implementation, the middle of the elastic wave has a second convex part. The second convex portion is connected to the first convex portion. The second convex part is convex towards the direction close to the sound cone relative to the outer periphery of the elastic wave and the inner periphery of the elastic wave. In the thickness direction of the speaker, the height of the second convex portion is less than or equal to the height of the first convex portion.

It can be understood that, by providing a plurality of the second protrusions and a plurality of the recesses, and in the Z direction, the height of the second protrusions is smaller than that of the first protrusions, so as to ensure that the elastic wave has a better tensile force. In other words, when the voice coil drives the sound cone to vibrate along the Z direction, the elastic wave can provide a better elastic restoring force for the sound cone.

In addition, in the Z direction, the height of the second convex portion is smaller than that of the first convex portion, and at this time, a large space is provided between the damper and the cone, that is, a vibration space of the cone is large.

In one implementation, the speaker further includes a connector. One end of the connecting piece is fixed in the middle of the cone, and the other end of the connecting piece is fixed in the middle of the elastic wave.

In this embodiment, through inciting somebody to action the one end of connecting piece is fixed in the middle part of sound basin, the other end is fixed in the middle part of bullet ripples to the voice coil loudspeaker voice coil drives when the sound basin vibrates along the Z direction, it can be right to play the ripples the effort is applyed to the sound basin, in order to avoid the voice coil loudspeaker voice coil reaches the sound basin is along X-Y plane motion, also avoid the voice coil loudspeaker voice coil with the sound basin is swayed from side to side.

It can be understood that, by fixing one end of the connecting piece to the middle of the cone and the other end to the middle of the damper, the bending angle of the curved surface formed by the first bending part, the flat part and the second bending part of the cone can be made smaller, that is, the middle of the cone is smoother. In other words, the cone does not affect the appearance of the loudspeaker by the presence of large dimples. At this time, the user experience of the speaker is better.

In one implementation, the connector is annular. At this time, the connection area of the connecting piece and the middle part of the cone is large. The connecting piece and the sound basin are connected firmly. In addition, the connecting area of the connecting piece and the middle part of the elastic wave is larger. The connecting piece and the elastic wave are also better in connection firmness.

In one implementation, the speaker further includes a dust cap. The dustproof cap is fixed at one end, far away from the magnetic circuit system, of the voice coil and covers the voice coil. At this time, the dust cap can be used to prevent external dust and moisture from entering the speaker through the hollow region of the voice coil.

In one embodiment, the number of the connecting members may be plural. Each of the connectors is ring-shaped. And the connecting pieces are fixed between the middle part of the cone and the middle part of the elastic wave. In addition, a plurality of the connecting pieces may be fixed to a plurality of the convex portions on the damper in a one-to-one correspondence.

In a second aspect, the present application provides an electronic device. The electronic equipment comprises a box body and the loudspeaker. The loudspeaker is mounted on the box body. It is understood that by thinning the speaker, when the speaker is applied to the electronic apparatus, the electronic apparatus can also realize the thinned setting.

Drawings

Fig. 1 is a schematic structural diagram of an electronic device provided in an embodiment of the present application;

FIG. 2 is a partially exploded schematic view of the electronic device shown in FIG. 1;

FIG. 3 is a schematic cross-sectional view of the electronic device of FIG. 1 at line A-A;

FIG. 4 is an exploded schematic view of one embodiment of a speaker of the electronic device shown in FIG. 1;

FIG. 5 is an enlarged schematic view of the electronic device shown in FIG. 3 at B;

FIG. 6 is an enlarged schematic view of the electronic device shown in FIG. 5 at C;

FIG. 7 is a cross-sectional schematic view of one embodiment of a speaker of the electronic device shown in FIG. 2 at line D-D;

FIG. 8 is an enlarged schematic view of the electronic device shown in FIG. 7 at E;

FIG. 9 is a cross-sectional schematic view of another embodiment of a speaker of the electronic device shown in FIG. 2 at line D-D;

FIG. 10 is an exploded schematic view of another embodiment of a speaker of the electronic device shown in FIG. 1;

fig. 11 is yet another embodiment of the speaker of the electronic device of fig. 2 at the D-D line.

Detailed Description

Referring to fig. 1, fig. 1 is a schematic structural diagram of an electronic device according to an embodiment of the present disclosure. The electronic device 100 may be a stereo, a television, a tablet, a camera, a personal computer, a laptop, a vehicle mounted device, or a wearable device. The electronic device 100 of the embodiment shown in fig. 1 is illustrated by taking a sound as an example. For convenience of description, the width direction of the electronic device 100 is defined as an X-axis as shown in fig. 1. The length direction of the electronic device 100 is the Y-axis. The thickness direction of the electronic device 100 is the Z-axis.

Referring to fig. 2 in conjunction with fig. 1, fig. 2 is a partially exploded view of the electronic device shown in fig. 1. The electronic apparatus 100 includes a cabinet 10 and a speaker 20. The speaker 20 is mounted to the cabinet 10. The position of the loudspeaker 20 is not limited to the position illustrated in fig. 1. In one embodiment, the speaker 20 may be fixed to the housing 10 by glue, adhesive, or snap-fit.

Referring to fig. 3, fig. 3 is a schematic cross-sectional view of the electronic device shown in fig. 1 at a line a-a. The case 10 includes a front plate 11, a frame 12, and a rear plate 13. The front plate 11 and the rear plate 13 are disposed opposite to each other, and the front plate 11 and the rear plate 13 are fixed to both sides of the frame 12. The front plate 11, the frame 12 and the rear plate 13 enclose an accommodating space 14. The shape defined by the front plate 11, the frame 12, and the rear plate 13 is not limited to the rectangular parallelepiped shape illustrated in fig. 2. For example, the shape surrounded by the front plate 11, the frame 12, and the rear plate 13 may be a prism shape or a mesa shape. In particular, the present application is not limited.

As shown in fig. 2 and 3, the front plate 11 may be provided with a first groove 111. The first groove 111 is formed by recessing the surface of the front plate 11 toward the rear plate 13. The bottom wall of the first groove 111 may be opened with a first through hole 112. The first through hole 112 communicates the accommodating space 14 to the outside of the case 10. In other embodiments, the first groove 111 and the first through hole 112 may be disposed on the frame 12 or the rear plate 13.

Referring to fig. 3 again, the speaker 20 is fixed on the bottom wall of the first recess 111, and a portion of the speaker 20 is located in the accommodating space 14. Part of the loudspeaker 20 is located in the first recess 111. In other embodiments, portions of speaker 20 may also be located outside of enclosure 10. The specific embodiment is not limited.

In the present embodiment, when the speaker 20 receives the audio signal, the speaker 20 can emit sound to the outside of the electronic apparatus 100 according to the audio signal. For example, speaker 20 may be used to play music.

In one embodiment, the electronic device 100 further includes a power amp i er (PA) (not shown). The power amplifier is installed in the accommodating space 14. The power amplifier is electrically connected to a sound source device (e.g., a cellular phone, a computer, or a portable computer) at one end and to a speaker 20 at the other end. When the sound source device emits an audio signal, the audio signal is transmitted to the power amplifier, and the power amplifier processes the audio signal and transmits the processed audio signal to the speaker 20. The speaker 20 emits sound to the outside of the electronic apparatus 100 according to the audio signal.

In the present embodiment, the speaker 20 has three different main arrangements. The thicknesses of the three main speakers 20 of the present embodiment in the Z direction can be effectively reduced, that is, the thin arrangement of the speakers 20 is facilitated. In this case, the electronic apparatus 100 having the speaker 20 can be provided in a thin shape. Specifically, the structures of these three speakers 20 will be described in detail below with reference to the related drawings.

The first embodiment: referring to fig. 4, fig. 4 is an exploded view of an embodiment of a speaker of the electronic device shown in fig. 1. The loudspeaker 20 comprises a frame 21, a magnetic circuit 22, a damper 23, a voice coil 24, a cone 25, a corrugated rim 26 and a dust cap 27.

Referring to fig. 4 and 5, fig. 5 is an enlarged schematic view of the electronic device shown in fig. 3 at a point B. The basin stand 21 is annular. The frame 21 comprises an outer periphery 211, a middle part 212 and an inner periphery 215 which are connected in sequence, namely, the middle part 212 of the frame 21 is connected between the outer periphery 211 of the frame 21 and the inner periphery 215 of the frame 21. In the Z direction, the outer periphery 211 of the frame 21 forms a height difference with the inner periphery 215 of the frame 21. Fig. 4 and 5 both show that in the Z direction, the height of the outer periphery 211 of the frame 21 is higher than the height of the inner periphery 215 of the frame 21. At this time, the outer periphery 211, the middle portion 212 and the inner periphery 215 of the frame 21 enclose the second groove 213.

Wherein the magnetic circuit system 22 is used for generating a magnetic field. The magnetic circuit system 22 is located inside the frame 21 and is fixed to the inner periphery 215 of the frame 21.

Referring to FIG. 4, the middle portion 212 of the basin stand 21 is provided with a second through hole 214. The second through hole 214 connects the first recess 213 to the accommodating space 14 (see fig. 3). Referring to fig. 5, the magnetic circuit system 22 is fixed to the inner periphery 215 of the frame 21. Furthermore, part of magnetic circuit 22 is located in second recess 213. Part of the magnetic circuit system 22 extends out of the basin frame 21 through the second through hole 214 and is positioned in the accommodating space 14.

Referring to fig. 4 again, the magnetic circuit system 22 includes an outer magnetic conductive member 221, a magnetic member 222, and an inner magnetic conductive member 223. The magnetic body 222 may be, but is not limited to, magnetic steel.

Referring again to fig. 4 and 5, the outer magnetic conductive member 221 includes a bottom wall 2211, a side wall 2212 and an extension 2213. The outer magnetic conductive member 221 is annular. One end of the side wall 2212 of the outer magnetic conductive member 221 is fixed to the periphery of the bottom wall 2211 of the outer magnetic conductive member 221. In addition, the side wall 2212 of the outer magnetic conductive member 221 and the bottom wall 2211 of the outer magnetic conductive member 221 enclose the receiving slot 224. The extension 2213 is connected to the sidewall 2212 of the outer magnetic conductive member 221, and the extension 2213 protrudes away from the receiving slot 224. The extension 2213 is connected to the inner periphery 215 of the frame 21, that is, the other end of the side wall 2212 of the outer magnetic conductive member 221 is fixed to the inner periphery 215 of the frame 21 through the extension 2213.

Furthermore, fig. 5 illustrates that part of the outer magnetically permeable member 221 is located in said second groove 213. Part of the outer magnetic conductive member 221 passes through the second through hole 214 and out of the basin frame 21. In other embodiments, the outer magnetic conductive member 221 may be located in the second groove 213.

In one embodiment, the extension 2213 can be fixed to the inner periphery 215 of the frame 21 by glue to ensure that the outer magnetic conductive member 221 has better connection stability with the frame 21.

In one embodiment, the inner periphery 215 of the basin frame 21 is stepped. The extension 2213 is fixed to a stepped surface of the inner periphery 215 of the frame 21. It will be appreciated that the structural strength of the stepped frame 21 is better. At this time, the ability to support the outer magnetic conductive member 221 is also better.

In one embodiment, the extension 2213 is annular in shape. At this time, the contact area between the extension 2213 and the inner periphery 215 of the frame 21 is larger, so that the connection between the extension 2213 and the inner periphery 215 of the frame 21 is more firm. In other implementations, the extension 2213 may include multiple extension blocks. A plurality of extension blocks are disposed around the outer side surface of the connection portion 2213 to form a ring shape. The plurality of extension blocks are commonly secured to the inner periphery 215 of the basin frame 21. At this time, the mass of the outer magnetic conductive member 221 is small, which is advantageous for the light and thin installation of the speaker 20. In the present embodiment, the shape of the extension 2213 is not particularly limited.

Referring to fig. 4 and 5 again, the magnetic body 222 is located in the receiving slot 224, and the magnetic body 222 is fixed to the bottom wall 2211 of the outer magnetic conductive member 221. The magnetic body 222 is spaced from the sidewall 2212 of the outer magnetic conductive member 221. In other words, there is a free space between the magnetic body 222 and the sidewall 2212 of the outer magnetic conductive member 221. The shape of the magnetic body 222 is not limited to the disk shape illustrated in fig. 4.

In addition, the inner magnetic member 223 is fixed to the surface of the magnetic body 222 facing away from the bottom wall 2211 of the outer magnetic member 221. The inner magnetic conductive member 223 may be entirely located in the accommodating slot 224, or may be partially located in the accommodating slot 224, and partially exposed relative to the outer magnetic conductive member 221. The inner magnetic conductive member 223 is spaced apart from the sidewall 2212 of the outer magnetic conductive member 221. In other words, there is a free space between the inner magnetic conductive member 223 and the side wall 2212 of the outer magnetic conductive member 221. In addition, the shape of the inner magnetic conductive member 223 is not limited to the disk shape illustrated in fig. 4. It will be appreciated that the inner magnetic conductor 223 forms a magnetic gap with the side wall 2212 of the outer magnetic conductor 221. At this time, the magnetic gap has a magnetic field with a certain magnetic field direction. The magnetic field direction is the direction of the inner magnetic conductor 223 towards the side wall 2212 of the outer magnetic conductor 221.

Referring to fig. 5 again, the voice coil 24 is partially located outside the magnetic circuit 22 and partially located in the magnetic gap of the magnetic circuit 22, i.e. between the inner magnetic conductive member 223 and the sidewall 2212 of the outer magnetic conductive member 221. As shown in fig. 4, the voice coil 24 is annular. The voice coil 24 is sleeved with the inner magnetic conductive member 223, and a portion of the voice coil 24 is located in the receiving groove 224. Part of the voice coil 24 is located between the outer magnetic conductor 221 and the inner magnetic conductor 223. Fig. 5 shows a portion of voice coil 24 in housing 224, and a portion of voice coil 24 is exposed relative to outer magnetic conductive member 221. In other embodiments, all of the voice coil 24 may be located in the housing groove 224. At this time, the voice coil 24 and the outer magnetic conductive member 221 overlap more in the Z direction. In other words, the thickness of speaker 20 in the Z direction can be made thin, thereby realizing a thin installation of speaker 20.

It will be appreciated that when an audio signal is transmitted to voice coil 24, voice coil 24 generates an electrical current. At this time, the voice coil 24 is disposed in the magnetic gap, so that the voice coil 24 moves in the Z direction under the magnetic field environment in the magnetic gap.

In other embodiments, the structure of the magnetic circuit system 22 is not limited to the single magnetic circuit structure illustrated in fig. 4 and 5. Magnetic circuit systems capable of generating a magnetic field that moves voice coil 24 in the Z direction are within the scope of the present application. Such as a magnetic circuit system of a dual magnetic structure.

Referring to fig. 4 again, the voice coil 24 includes a voice coil bobbin 241 and a conductive coil 242. The voice coil bobbin 241 is annular. The conductive coil 242 is wound on the outer side of the voice coil bobbin 241. The conductive coil 242 is used to receive audio signals. When the conductive coil 242 receives the audio signal, the conductive coil 242 generates a current. At this time, the conductive coil 242 can drive the voice coil bobbin 241 to move along the Z direction under the magnetic field in the magnetic gap.

Referring to fig. 4 and 5 again, the dust cap 27 of the speaker 20 is fixed to the voice coil 24, and the dust cap 27 covers the voice coil 24. The dust cap 27 is fixed to an end of the voice coil bobbin 241 away from the bottom wall 2211 of the outer magnetic conductor 221. In one embodiment, the dust cap 27 is fixed to the outer surface of the voice coil bobbin 241 by adhesive.

Further, the dust cap 27 covers a hollow area surrounded by the voice coil bobbin 241. At this time, the dust cap 27 can serve to prevent external dust and moisture from entering the speaker 20 through the hollow area of the voice coil 24.

Referring to fig. 4 and 6, fig. 6 is an enlarged schematic view of the electronic device shown in fig. 5 at point C. The edge 26 of the loudspeaker 20 is ring-shaped. The edge 26 includes an outer edge 261, a middle portion 262 and an inner edge 263 connected in sequence, that is, the middle portion 262 of the edge 26 is connected between the outer edge 261 of the edge 26 and the inner edge 263 of the edge 26.

Further, the outer peripheral edge 261 of the edge 26 is fixed to the outer peripheral edge 211 of the tub 21.

In one embodiment, the outer periphery 261 of the flap 26 is secured to the outer periphery 211 of the frame 21 by adhesive tape or glue.

In one embodiment, the outer periphery 211 of the frame 21 is stepped. The outer periphery 261 of the edge 26 is fixed to a stepped surface of the outer periphery 211 of the tub 21. Thus, the outer periphery 261 of the edge 26 is firmly connected to the outer periphery 211 of the frame 21, i.e. the edge 26 is firmly connected to the frame 21.

Referring again to fig. 4 and 6, the cone 25 is annular. The cone 25 includes an outer periphery 251, a middle portion 252 and an inner periphery 253 which are connected in sequence, that is, the middle portion 252 of the cone 25 is connected between the outer periphery 251 of the cone 25 and the inner periphery 253 of the cone 25.

Further, the outer peripheral edge 251 of the cone 25 is fixed to the inner peripheral edge 263 of the corrugated rim 26. At this time, the cone 25 is connected to the outer peripheral edge 211 of the frame 21 via the corrugated rim 26. In one embodiment, the outer periphery 251 of the cone 25 may be secured to the rim 26 by adhesive tape or glue.

Furthermore, the inner peripheral edge 253 of the cone 25 is disposed opposite to the magnetic circuit system 22 (fig. 6 illustrates that the inner peripheral edge 253 of the cone 25 is located above the outer magnetic conductive member 221). In addition, the inner periphery 253 of the cone 25 is fixed to the end of the voice coil 24 away from the bottom wall 2211 (see fig. 5) of the outer magnetic conductor 221.

It is understood that when the voice coil 24 moves in the Z direction under the magnetic field environment in the magnetic gap, the voice coil 24 can drive part of the voice coil 25 to vibrate in the Z direction. At this time, the vibration of the cone 25 pushes the compression and expansion of the air near the cone 25, and the compression and expansion of the air generates a sound.

In addition, when the cone 25 is connected to the frame 21 through the corrugated rim 26, the voice coil 24 drives a portion of the cone 25 to vibrate in the Z direction, and the corrugated rim 26 can apply an acting force to the cone 25 to prevent the voice coil 24 and the cone 25 from moving along the X-Y plane, i.e., prevent the voice coil 24 and the cone 25 from swinging left and right.

Referring to fig. 4 and 6 again, the damper 23 of the speaker 20 is spaced apart from the corrugated rim 26. The damper 23 is annular. The spider 23 includes an outer periphery 231, a middle portion 232, and an inner periphery 233. The middle portion 232 of the spider 23 is connected between the outer periphery 231 of the spider 23 and the inner periphery 233 of the spider 23.

In addition, the middle portion 232 of the damper 23 is wavy. The shape of the damper 23 is not limited to the ring shape illustrated in fig. 4. Specifically, the middle portion 232 of the damper 23 includes a plurality of protrusions 2321 and a plurality of recesses 2322. The plurality of protruding portions 2321 and the plurality of recessed portions 2322 are sequentially connected in a staggered manner. Further, each of the convexes 2321 is convex toward the sound basin 25. Each recess 2322 is recessed away from the cone 25.

Further, the middle portion 252 of the cone 25 is recessed toward the damper 23 and connected to the damper 23.

In one embodiment, the middle portion 252 of the cone 25 is recessed toward the damper 23 and is connected to the protrusion 2321 of the damper 23. The middle portion 252 of cone 25 is not limited to the protrusion 2321 shown in fig. 6 connected to damper 23. In other embodiments, the middle portion 252 of the cone 25 may be connected to the plurality of protrusions 2321 of the damper 23. The middle portion 252 of the cone 25 is recessed toward the damper 23, and may be connected to the recess 2322 of the damper 23.

It will be appreciated that by recessing the middle portion 252 of the cone 25 in a direction close to the damper 23 and connecting to the damper 23, when the voice coil 24 drives the cone 25 to vibrate in the Z direction, the damper 23 can apply a force to the cone 25 to prevent the voice coil 24 and the cone 25 from moving along the X-Y plane, i.e. to prevent the voice coil 24 and the cone 25 from swaying left and right.

In addition, the damper 23 of the speaker 20 is spaced from the edge 26, so that a long moment arm is provided between the damper 23 and the edge 26. In this case, the damper 23 and the edge 26 have a better effect of preventing the voice coil 24 from rocking left and right.

Referring again to FIG. 6, the outer periphery 231 of the damper 23 is secured to the middle portion 212 of the basin frame 21. In one embodiment, the outer periphery 231 of the damper 23 can be secured to the middle portion 212 of the basin frame 21 by glue or glue.

In one embodiment, the middle portion 212 of the frame 21 is stepped. The outer periphery 231 of the spider 23 is secured to a stepped surface of the central portion 212 of the basin frame 21. At this time, the middle part 212 of the frame 21 can effectively support the damper 23 in the Z direction to ensure the stability of the damper 23.

In addition, the fixing mode of the damper 23 can be simplified by arranging the middle part 212 of the frame 21 in a step shape. Specifically, compared with the scheme that the threaded hole is formed in the middle part 212 of the basin frame 21 and then the outer periphery 231 of the elastic wave 23 is fixed to the threaded hole through the screw, in the embodiment, the outer periphery 231 of the elastic wave 23 can be directly fixed to the step surface of the middle part 212 of the basin frame 21 through the adhesive tape or glue, and the fixing mode is simple and easy to operate.

In one embodiment, the stepped surface of the middle portion 212 of the frame 21 is planar. The outer peripheral edge 231 of the damper 23 is flat. At this time, the connection surface of the outer peripheral edge 231 of the damper 23 and the middle portion 212 of the frame 21 is a flat surface. The connection between the outer periphery 231 of the damper 23 and the middle part 212 of the basin stand 21 is more stable, so that the connection between the outer periphery 231 of the damper 23 and the middle part 212 of the basin stand 21 is better.

In other embodiments, the middle portion 212 of the frame 21 may also be arcuate.

Referring again to fig. 6, the inner periphery 233 of the damper 23 is connected to the extension 2213 of the outer magnetic conductive member 221. At this time, in the Z direction, the extension 2213 can effectively support the inner circumferential edge 233 of the damper 23 to ensure the stability of the damper 23. In addition, the damper 23, the basin frame 21 and the outer magnetic conductive member 221 can form a stable whole, that is, the damper 23, the basin frame 21 and the outer magnetic conductive member 221 are connected firmly.

In one embodiment, the inner periphery 233 of the damper 23 may also be fixed to the extension 2213 of the outer magnetic conductive member 221 by adhesive tape or glue.

In this embodiment, the extension 2213 is disposed on the outer magnetic conductive member 221, so that the extension 2213 can be used to fix the middle portion 212 of the basin frame 21 to ensure the connection between the outer magnetic conductive member 221 and the basin frame 21, and the extension 2213 can be used to fix the inner circumferential edge 233 of the damper 23 to ensure the connection between the outer magnetic conductive member 221 and the damper 23. It will be appreciated that the extension 2213 has the effect of "one object for multiple uses".

In one embodiment, the surface of the inner periphery 233 of the damper 23 secured to the extension 2213 is planar. At this time, the connection between the inner periphery 233 of the damper 23 and the outer magnetic conductive member 221 is more stable, so that the connection between the outer periphery 231 of the damper 23 and the extension 2213 of the outer magnetic conductive member 221 is more firm.

In one embodiment, the extension 2213 is provided with a plurality of recessed areas (not shown). The openings of the plurality of recessed areas are located on the surface of the extension 2213 that contacts the bullet wave 23. At this time, when the inner circumferential edge 233 of the damper 23 is fixed by the adhesive tape or the liquid glue, the adhesive tape or the liquid glue may be filled in the recessed area. At this time, the contact area of the inner peripheral edge 233 of the damper 23 with the extension 2213 is large. The connection between the inner periphery 233 of the damper 23 and the extension 2213 is better.

Referring to fig. 7, fig. 7 is a cross-sectional view of one embodiment of a speaker of the electronic device shown in fig. 2 at a D-D line.

The thickness of the speaker 20 in the Z direction includes a height H1 of the first magnetic conductive member 221 in the Z direction, a shortest distance H2 between the first magnetic conductive member 221 and the inner peripheral edge 253 of the cone 25, and a distance H3 between the inner peripheral edge 253 of the cone 25 and the top surface of the frame 21 (the highest end surface of the frame 21 in the positive direction of the Z axis). It can be understood that, compared to the solution of connecting the damper 23 between the middle portion 212 of the frame 21 and the voice coil 24, in the present embodiment, the damper 23 is connected between the middle portion 212 of the frame 21 and the extension portion 2213 of the outer magnetic conductive member 221, so that the space between the inner periphery 253 of the cone 25 and the first magnetic conductive member 221 is no longer blocked by the damper 23. In other words, the shortest distance H2 between the first magnetic conductive member 221 and the inner circumferential edge 253 of the cone 25 no longer includes the height of the damper 23 in the Z direction. Therefore, the thickness of the speaker 20 in the Z direction according to the present embodiment is small, that is, it is advantageous to thin the speaker 20.

Referring to fig. 8 in conjunction with fig. 7, fig. 8 is an enlarged schematic view of the electronic device shown in fig. 7 at point E. Middle portion 252 of cone 25 includes a first curved portion 2521, a flat portion 2522, and a second curved portion 2523 connected in this order. The flat portion 2522 is connected between the first curved portion 2521 and the second curved portion 2523. The flat portion 2522 is fixed to the middle portion 232 of the spider 23. The side of the first curved portion 2521 facing away from the flat portion 2522 is connected to the outer peripheral edge 251 of the cone 25. The side of the second curved portion 2523 facing away from the flat portion 2522 is connected to the inner circumferential edge 253 of the cone 25. It is understood that the surface of the flat portion 2521 of the present embodiment is a flat surface. At this time, the connection area between the middle part 252 of the cone 25 and the middle part 232 of the damper 23 is large, which is favorable for improving the connection firmness between the cone 25 and the damper 23.

Referring to fig. 8 again, the first curved portion 2521 and the second curved portion 2523 both protrude in a direction away from the damper 23. Thus, the distance between the first and second

curved portions

2521 and 2523 and the damper 23 is large, thereby preventing the cone 25 and the damper 23 from colliding with each other during vibration in the Z direction.

In another embodiment, the flat portion 2522 of the cone 25 may be a recessed portion. At this time, the recess is engaged with the protrusion 2321 of the damper 23, and a fixing paste is provided between the recess and the protrusion 2321, thereby achieving stable connection between the cone 25 and the damper 23.

Referring to fig. 8 again, the surface of the convex portion 2321 of the damper 23 connected to the flat portion 2522 of the cone 25 is a plane. At this time, the connection mode of the damper 23 and the cone 25 is simple, i.e. convenient to operate. In addition, the connection area of the damper 23 and the sound cone 25 is large, which is beneficial to improving the connection firmness of the damper 23 and the sound cone 25.

In the second embodiment, the same technical contents as those in the first embodiment are not described again. In other words, most of the contents of the first embodiment can be directly applied to the second embodiment.

Referring to fig. 9, fig. 9 is a schematic cross-sectional view of another embodiment of a speaker of the electronic device shown in fig. 2 at a D-D line. The middle portion 232 of the damper 23 has a first lobe 2323. The first protrusion 2323 protrudes toward the sound cone 25 with respect to the outer and

inner peripheries

231 and 233 of the damper 23, and is connected to the middle 252 of the sound cone 25. The first protruding portion 2323 may be fixedly connected to the middle portion 252 of the cone 25 by adhesive. Fig. 9 illustrates that the number of first tabs 2323 is not limited to the one illustrated in fig. 9. For example, the number of first protrusions 2323 may be two, or two or more.

Further, the outer peripheral edge 231 of the damper 23 is fixed to the middle portion 212 of the frame 21 in the same manner as the outer peripheral edge 231 of the damper 23 of the first embodiment is connected to the middle portion 212 of the frame 21. And will not be described in detail herein. The manner in which the inner circumferential edge 233 of the damper 23 is fixed to the outer magnetic conductive member 221 is the same as the manner in which the inner circumferential edge 233 of the damper 23 of the first embodiment is connected to the outer magnetic conductive member 221. And will not be described in detail herein. It will be appreciated that by fixing the damper 23 between the middle portion 212 of the frame 21 and the outer magnetic conductor 221, the thickness of the speaker 20 in the Z direction can be made thinner. Reference may be made specifically to the first embodiment.

In the present embodiment, the first protruding portion 2323 is connected to the middle portion 252 of the cone 25, so that the bending angle of the curved surface formed by the first curved portion 2521, the flat portion 2522 and the second curved portion 2523 of the cone 25 is small, that is, the middle portion 252 of the cone 25 is flat. In other words, the cone 25 does not affect the appearance of the speaker 20 due to the presence of the large dimples. At this time, the user experience of the speaker 20 is better.

In one embodiment, the surface of the first protruding portion 2323 connected to the cone 25 is a plane. At this time, the connection area of the damper 23 and the cone 25 is large, which is beneficial to improving the connection firmness of the damper 23 and the cone 25.

In one embodiment, the middle portion 232 of the damper 23 further has a plurality of second protrusions 2321 and a plurality of recesses 2322. The second plurality of protruding portions 2321 and the second plurality of recessed portions 2322 are sequentially connected in a staggered manner. Further, each of the second protrusions 2321 protrudes toward the sound cone 25 with respect to the outer circumferential edge 231 and the inner circumferential edge 233 of the damper 23. Each recess 2322 is recessed relative to the outer 231 and inner 233 edges of the damper 23 in a direction away from the cone 25. Second protruding portion 2321 is disposed at a distance from first protruding portion 2323. Recess 2322 is connected to first projection 2323.

The second protruding portion 2321 protrudes in the Z direction toward the sound cone 25 with respect to the outer circumferential edge 231 and the inner circumferential edge 233 of the damper 23. Second protruding portion 2321 has a height smaller than that of first protruding portion 2323.

It can be understood that, by providing a plurality of second protrusions 2321 and a plurality of recesses 2322, and in the Z direction, the height of the second protrusions 2321 is smaller than that of the first protrusions 2323, so as to ensure that the damper 23 has a better tensile force. In other words, when the voice coil 24 drives the cone 25 to vibrate in the Z direction, the damper 23 can provide a better elastic restoring force to the cone 25.

In addition, in the Z direction, the height of the second protruding portion 2321 is smaller than that of the first protruding portion 2323, a large space is provided between the damper 23 and the cone 25, and the vibration space of the cone 25 is large.

In other embodiments, the height of second lobe 2321 is equal to the height of first lobe 2323 in the Z-direction. Moreover, the number of second projecting portions 2321 and recessed portions 2322 may be one.

In the third embodiment, the same technical contents as those of the first embodiment are not described again. In other words, most of the contents of the first embodiment can be directly applied to the third embodiment.

Referring to fig. 10, fig. 10 is an exploded schematic view of another embodiment of the speaker of the electronic device shown in fig. 1. Fig. 11 is yet another embodiment of the speaker of the electronic device of fig. 2 at the D-D line. Speaker 20 includes a connector 28. The material of the connecting member 28 may be the same as that of the damper 23. One end of the connecting piece 28 is fixed to the middle part 252 of the cone 25, and the other end is fixed to the middle part 232 of the damper 23.

In one embodiment, one end of the connector 28 is secured to the middle portion 252 of the cone 25 by adhesive tape or glue. In addition, the other end of the connecting member 28 may also be fixedly connected to the middle portion 232 of the damper 23 by adhesive tape or glue.

In the present embodiment, one end of the connecting member 28 is fixed to the middle portion 252 of the cone 25, and the other end is fixed to the middle portion 232 of the damper 23, so that the bending angle of the curved surface formed by the first bending portion 2521, the flat portion 2522, and the second bending portion 2523 of the cone 25 is small, that is, the middle portion 252 of the cone 25 is flat. In other words, the cone 25 does not affect the appearance of the speaker 20 due to the presence of the large dimples. At this time, the user experience of the speaker 20 is better.

Fig. 11 shows that one end of the link 28 is fixed to one of the convex portions 2321 of the damper 23, and the other end is fixed to the flat portion 2522 of the cone 25. In other embodiments, one end of the connecting member 28 may be fixed to the recess 2322 of the middle portion 232 of the damper 23.

In one embodiment, the surface of the central portion 232 of the damper 23 that is attached to the connector 28 is planar. At this time, the connection area between the connecting piece 28 and the damper 23 is large, which is beneficial to improving the connection firmness between the damper 23 and the connecting piece 28.

Referring to fig. 10 again, the number of the connecting members 28 is one, and the connecting members 28 are ring-shaped. At this time, the connection area of the connection member 28 and the middle portion 252 of the cone 25 is large. The connecting member 28 is connected to the cone 25 more firmly. In addition, the connecting area of the connecting piece 28 and the middle part 232 of the damper 23 is also large. The connecting member 28 is also preferably connected to the damper 23.

In other embodiments, the number of the connecting members 28 may be plural. Each connector 28 is annular. A plurality of connectors 28 are each secured between the middle portion 252 of the cone 25 and the middle portion 232 of the damper 23. Further, a plurality of connecting members 28 may be fixed to a plurality of protrusions 2311 on the damper 23 in a one-to-one correspondence.

In other embodiments, the number of the connecting members 28 may be plural. Each connector 28 is in the form of a block or strip. A plurality of connecting members 28 are disposed around magnetic circuit 22. In this case, the mass of the plurality of connectors 28 is smaller than that of the one-piece annular connector 28, which is advantageous for the light and thin installation of the speaker 20.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A loudspeaker, comprising:

the loudspeaker comprises a loudspeaker frame, a loudspeaker and a loudspeaker, wherein the frame is annular and comprises an outer periphery, a middle part and an inner periphery which are sequentially connected, and in the thickness direction of the loudspeaker, the outer periphery of the frame and the inner periphery of the frame form a height difference;

the magnetic circuit system is positioned on the inner side of the basin stand and is fixed on the inner periphery of the basin stand;

the elastic wave is annular and comprises an outer periphery, a middle part and an inner periphery which are sequentially connected, the outer periphery of the elastic wave is fixed in the middle of the basin frame, and the inner periphery of the elastic wave is fixed in the magnetic circuit system;

the outer periphery of the folding ring is fixed on the outer periphery of the basin frame and is arranged at intervals with the elastic waves;

the sound basin is annular and comprises an outer peripheral edge, a middle part and an inner peripheral edge which are sequentially connected, the outer peripheral edge of the sound basin is fixed on the inner peripheral edge of the corrugated ring, the middle part of the sound basin is fixed on the middle part of the elastic wave, and the inner peripheral edge of the sound basin is opposite to the magnetic circuit system; and the number of the first and second groups,

and one end of the voice coil is fixed on the inner periphery of the cone, and the other end of the voice coil is positioned in the magnetic gap of the magnetic circuit system.

2. The loudspeaker according to claim 1, wherein the magnetic circuit system comprises an outer magnetic conductive member, a magnetic member and an inner magnetic conductive member, the outer magnetic conductive member comprises a side wall and a bottom wall, one end of the side wall of the outer magnetic conductive member is fixed to the periphery of the bottom wall of the outer magnetic conductive member, the other end of the side wall of the outer magnetic conductive member is fixed to the inner periphery of the frame, and the inner periphery of the elastic wave is fixed to the outer magnetic conductive member;

the lateral wall of outer magnetic conduction spare with the accepting groove is enclosed out to the diapire of outer magnetic conduction spare, the magnetic substance is located in the accepting groove, and is fixed in the diapire of outer magnetic conduction spare, the magnetic substance with the lateral wall interval of outer magnetic conduction spare sets up, interior magnetic conduction spare is fixed in the magnetic substance deviates from the surface of the diapire of outer magnetic conduction spare, interior magnetic conduction spare with the lateral wall interval of outer magnetic conduction spare sets up, just interior magnetic conduction spare with form the magnetic gap between the lateral wall of outer magnetic conduction spare.

3. The loudspeaker of claim 2, wherein the outer magnetic conductive member further comprises an extension portion, the extension portion is fixed to a side wall of the outer magnetic conductive member, the extension portion protrudes in a direction away from the accommodating groove, an inner periphery of the elastic wave is fixed to the extension portion, and an inner periphery of the frame is fixed to the extension portion.

4. The loudspeaker according to any one of claims 1 to 3, wherein the middle part of the frame is stepped, and the outer periphery of the elastic wave is fixed to one stepped surface of the middle part of the frame.

5. The speaker according to any one of claims 1 to 4, wherein the center portion of the cone is recessed in a direction close to the damper with respect to an inner peripheral edge of the cone and an outer peripheral edge of the cone, and is fixed to the center portion of the damper.

6. The speaker of claim 5, wherein the middle portion of the cone includes a first curved portion, a flat portion, and a second curved portion, the flat portion being connected between the first curved portion and the second curved portion, the flat portion being fixed to the middle portion of the damper, a side of the first curved portion facing away from the flat portion being connected to an outer peripheral edge of the cone, and a side of the second curved portion facing away from the flat portion being connected to an inner peripheral edge of the cone.

7. The loudspeaker of claim 6, wherein the middle portion of the damper has a plurality of protrusions spaced apart from each other, the protrusions are connected to the flat portion of the cone, and the surface of the protrusions connected to the flat portion is a flat surface.

8. The loudspeaker according to any one of claims 1 to 4, wherein the middle part of the damper has a first protrusion, and the first protrusion protrudes toward the sound cone with respect to the outer peripheral edge of the damper and the inner peripheral edge of the damper, and is connected to the middle part of the sound cone.

9. The speaker of claim 8, wherein the damper has a second protrusion in the middle thereof, the second protrusion being connected to the first protrusion, the second protrusion protruding toward the sound cone relative to the outer periphery of the damper and the inner periphery of the damper, and the height of the second protrusion is less than or equal to the height of the first protrusion in the thickness direction of the speaker.

10. The loudspeaker according to any one of claims 1 to 4, further comprising a connecting member, one end of the connecting member being fixed to the middle of the cone and the other end being fixed to the middle of the damper.

11. A loudspeaker according to claim 10, wherein the connector is annular.

12. The loudspeaker according to any one of claims 1 to 11, further comprising a dust cap fixed to an end of the voice coil remote from the magnetic circuit system and covering the voice coil.

13. An electronic device comprising a cabinet and a speaker according to any one of claims 1 to 12, the speaker being mounted to the cabinet.