WO2022068013A1

WO2022068013A1 - Sound generation device

Info

Publication number: WO2022068013A1
Application number: PCT/CN2020/129790
Authority: WO
Inventors: 宋威; 金鑫; 陶伟伟; 王奇
Original assignee: 瑞声声学科技(深圳)有限公司; 瑞声科技(新加坡)有限公司
Priority date: 2020-09-29
Filing date: 2020-11-18
Publication date: 2022-04-07
Also published as: CN214177560U

Abstract

Provided in the present utility model is a sound generation device, comprising a cone frame, a vibration system and a magnetic circuit system. The vibration system comprises a diaphragm, a voice coil, a framework for connecting the voice coil to the diaphragm, and an elastic member, which is fixed on the cone frame and is connected to one end of the framework away from the diaphragm. The elastic member comprises a first elastic member and a second elastic member; the first elastic member and the second elastic member both comprise an elastic member body; the first elastic member further comprises a bonding pad portion extending from the elastic member body towards the voice coil; and the bonding pad portion is electrically connected to the voice coil. The vibrating diaphragm comprises a vibration portion, a rim portion, a fixing portion and a counterweight portion extending from a side of the vibration portion corresponding to the second elastic member; the fixing portion is fixed on the cone frame; and the counterweight portion is attached to the diaphragm and/or the framework, such that a side of the vibration system corresponding to the first elastic member, and a side of the vibration system corresponding to the second elastic member are balanced in terms of mass. Compared with the related art, the diaphragm of the sound generation device has a good symmetry and good acoustic performance.

Description

sound device

technical field

The utility model relates to the field of sound and electricity, in particular to a sound producing device used in portable electronic products.

Background technique

With the advent of the mobile Internet era, the number of smart mobile devices continues to rise. Among many mobile devices, mobile phones are undoubtedly the most common and portable mobile terminal devices. Sound-emitting devices for playing sound are widely used in smart mobile devices such as mobile phones. The vibration system and magnetic circuit system used in the sound-emitting device are directly related to the sound quality of the sound-emitting device.

A vibration system of a sound-emitting device in the related art includes a basin frame, a vibration system fixed on the basin frame, and a magnetic circuit system that drives the vibration system to emit sound; the vibration system includes a vibrating membrane fixed on the basin frame, driving the A voice coil that vibrates and emits sound, a skeleton respectively fixed to the diaphragm and the voice coil, and a first elastic member and a second elastic member that are respectively fixed to the basin frame and the end of the skeleton away from the diaphragm Each of the first elastic member and the second elastic member includes an elastic member body, and the first elastic member further includes a first extension wall that is bent and extended from the elastic member body to the direction of the diaphragm and a second extension wall that is bent and extended from the side of the first extension wall away from the elastic member body in the direction of the voice coil, the first extension wall is fixed to the side wall of the frame, the second extension wall is The extension wall is fixed on the skeleton body, and the second extension wall is electrically connected with the lead wire of the voice coil.

However, in the sound-generating device of the related art, the voice coil has a rectangular structure, and the first elastic member and the second elastic member are respectively located on opposite sides of the voice coil. Compared with the second elastic member, the first elastic member has the first extension wall and the second extension wall for electrical connection with the lead wire of the voice coil, which increases the first extension wall and the second extension wall. Both the extension wall and the second extension wall are fixed to the frame, so that the mass of the diaphragm connected with the frame on the opposite sides of the voice coil is unbalanced, so that there is mass in the vibration system Asymmetry, thereby causing the amplitude swing of the diaphragm due to mass asymmetry, thereby reducing the acoustic performance of the sound-emitting device.

Therefore, it is necessary to provide a new sound-generating device to solve the above-mentioned technical problems.

technical problem

The purpose of the utility model is to provide a sounding device with good diaphragm symmetry and good acoustic performance.

technical solutions

In order to achieve the above purpose, the present invention provides a sounding device, which includes a basin frame, a vibration system fixed on the basin frame, and a magnetic circuit system that drives the vibration system to emit sound; the vibration system includes a vibration system fixed on the basin frame The diaphragm of the frame, the voice coil that drives the diaphragm to vibrate and sound, the skeleton connecting the voice coil to the diaphragm, and the skeleton fixed to the basin frame and connected to the end of the skeleton away from the diaphragm An elastic piece, the elastic piece includes a first elastic piece and a second elastic piece respectively located on opposite sides of the voice coil, the first elastic piece and the second elastic piece both comprise an elastic piece body, the first elastic piece An elastic member further includes a pad portion extending from the elastic member body in a direction close to the voice coil, and the pad portion is electrically connected to the voice coil;

The vibrating film includes a vibrating portion, a ring portion bent and extended from the periphery of the vibrating portion, a fixing portion bent and extended from the ring portion to a side away from the vibrating portion, and a ring portion formed by the vibrating portion. Corresponding to the counterweight portion extending from one side of the second elastic member, the fixing portion is fixed to the basin frame; the counterweight portion is attached to the diaphragm and/or the frame, so that the A side of the vibration system corresponding to the first elastic member and a side corresponding to the second elastic member are in mass balance.

Preferably, the skeleton includes a skeleton body and a skeleton side wall extending from the outer periphery of the skeleton body to the direction of the magnetic circuit system, and the skeleton body is fixed on a side of the vibrating part close to the magnetic circuit system , the voice coil is fixed on the side of the skeleton body close to the magnetic circuit system, the side wall of the skeleton is wound around the voice coil and is spaced from the voice coil; a first extension wall bent and extended from the elastic member body towards the direction of the diaphragm and a second extension wall bent and extended from the side of the first extension wall away from the elastic member body towards the voice coil , the first extension wall is located on the side of the skeleton side wall close to the voice coil, the second extension wall is fixed on the skeleton body, and the second extension wall is electrically connected with the voice coil; The counterweight part includes a first counterweight part and a second counterweight part, the first counterweight part is extended from the vibration part to the magnetic circuit system along the periphery of the side wall of the frame, and the first counterweight part is The weight part is attached and fixed to the side wall of the frame; the second weight part is extended from the vibration part along the surface of the frame body away from the magnetic circuit system, and the second weight part is attached fixed on the skeleton body;

Preferably, the mass of the first counterweight portion is the same as that of the first extension wall, and the mass of the second counterweight portion is the same as that of the second extension wall.

Preferably, the vibrating part is provided with a through hole passing through it; the skeleton body includes a ring-shaped main body part connected to the side wall of the skeleton, the upper surface of the inner peripheral edge of the main body part faces the magnetic A ring-shaped skeleton step formed by a depression in the direction of the road system, a skeleton fixing part bent and extended from the skeleton step to the direction of the voice coil, and a hollow skeleton hole surrounded by the skeleton step, the vibration part and the The second counterweight parts are respectively attached and fixed to the main body part, and the frame fixing part is attached and fixed to the side of the voice coil away from the magnetic circuit system; The skeleton step completely covers the dome of the skeleton hole, and the main body part is attached to the vibration part so that the dome, the skeleton step and the main body part together completely cover the through hole.

Preferably, the height of the side of the second weight portion away from the magnetic circuit system is smaller than the height of the side of the dome away from the magnetic circuit system.

Preferably, the first counterweight portion and the first extension wall are symmetrically arranged along the same axis parallel to the long axis of the skeleton body, and the second counterweight portion and the second extension wall are both symmetrically arranged. Symmetrically arranged along the same axis parallel to the long axis of the skeleton body.

Preferably, the first counterweight portion and the first extension wall are symmetrically arranged along a central axis parallel to the long axis of the skeleton body, and the second counterweight portion and the second extension wall are both arranged along a central axis parallel to the long axis of the skeleton body. The central axis parallel to the long axis of the skeleton body is symmetrically arranged.

Preferably, the shape of the first weight portion is the same as that of the first extension wall.

Preferably, two ends of the second weight portion along the short axis direction of the vibrating film are respectively connected to the vibrating portion.

Preferably, the second weight portion is formed by protruding from the vibrating portion.

Preferably, the second weight portion has the same shape as the second extending wall.

Preferably, the elastic member body comprises a first fixing arm fixed to the basin frame, a second fixing arm connected to an end of the side wall of the frame away from the vibrating membrane and spaced from the first fixing arm, and connecting the elastic arms of the first fixed arm and the second fixed arm, the welding part is formed by extending the second fixed arm of the first elastic member; the vibration system further comprises a connection connected to the elastic member An auxiliary diaphragm on the side of the body away from the diaphragm, the auxiliary diaphragm includes two and located on opposite sides of the voice coil, and one end of each auxiliary diaphragm is attached and fixed to the first a fixed arm, the other end of the auxiliary diaphragm is fixed on the second fixed arm.

beneficial effect

Compared with the related art, the sound-generating device of the present invention is configured by arranging the elastic members as the first elastic member and the second elastic member respectively located on opposite sides of the voice coil, wherein the first elastic member is opposite to the second elastic member. A pad part is added to the part, and the vibration part of the diaphragm corresponds to the counterweight part extending from one side of the second elastic part, and the counterweight part is attached to the diaphragm and/or the skeleton, so that the vibration system corresponds to the first elastic part. One side of the elastic member is mass-balanced with the side corresponding to the second elastic member, and this structure enables the mass of the vibration system on the opposite sides of the voice coil to reach a balance, thereby reducing the risk of mass asymmetry in the vibration system, thereby reducing the The amplitude swing of the diaphragm is caused by the mass asymmetry, so that the acoustic performance of the sound-emitting device is good.

Description of drawings

In order to illustrate the technical solutions in the embodiments of the present invention more clearly, the following briefly introduces the accompanying drawings used in the description of the embodiments. Obviously, the drawings in the following description are only some implementations of the present invention. For example, for those of ordinary skill in the art, under the premise of no creative work, other drawings can also be obtained from these drawings, wherein:

Fig. 1 is the stereoscopic structure schematic diagram of the sound-emitting device of the present invention;

2 is an exploded view of a partial three-dimensional structure of the sound-emitting device of the present invention;

Fig. 3 is a sectional view along line A-A in Fig. 1;

Fig. 4 is the partial enlarged schematic diagram of part B in Fig. 3;

5 is an assembly diagram of a voice coil, a diaphragm and a first elastic member of the sound-emitting device of the present invention;

6 is a schematic three-dimensional structure diagram of the vibrating membrane of the sound-emitting device of the present invention;

FIG. 7 is a schematic three-dimensional structural diagram of another embodiment of the diaphragm in FIG. 6 .

Embodiments of the present invention

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, but not all of them. Example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

Referring to FIGS. 1-6 , the present invention provides a sound-emitting device 100 , which includes a basin frame 1 , a vibration system 2 and a magnetic circuit system 3 respectively fixed to the basin frame 1 , and the magnetic circuit system 3 has a magnetic gap 30 , the magnetic circuit system 3 is used to drive the vibration system 2 to vibrate and sound.

In this embodiment, the basin frame 1 is rectangular.

The vibration system 2 includes a diaphragm 21 , a voice coil 22 , a frame 23 , an elastic member 4 , a dome 24 and an auxiliary diaphragm 25 .

The diaphragm 21 is fixed to the basin frame 1 . The diaphragm 21 is used for vibrating and producing sound. Specifically, the diaphragm 21 includes a vibrating portion 213 , a ring portion 212 , a fixing portion 211 and a weight portion 214 .

The vibrating part 213 is used for vibrating and producing sound. The vibrating portion 213 is provided with a through hole 2130 therethrough.

The ring portion 212 is bent and extended from the periphery of the vibrating portion 213 .

The fixing portion 211 is bent and extended from the ring portion 212 to a side away from the vibrating portion 213 . The fixing portion 211 is fixed to the basin frame 1 .

The counterweight portion 214 includes a first counterweight portion 2141 and a second counterweight portion 2142 , and the first counterweight portion 2141 and the second counterweight portion 2142 are used for mass balance of the diaphragm 21 .

The voice coil 22 is fixed to the diaphragm 21 and inserted into the magnetic gap 30 to drive the diaphragm 21 to vibrate and produce sound.

The frame 23 includes a frame body 231 and an annular frame side wall 232 extending from the outer periphery of the frame body 231 to the direction of the magnetic circuit system 3 .

The frame 23 connects the voice coil 22 to the diaphragm 21 . Specifically, the frame body 231 is fixed to the side of the vibration part 213 close to the magnetic circuit system 3 , and the voice coil 22 is fixed to the side of the frame body 231 close to the magnetic circuit system 3 . The skeleton body 231 is used to connect the diaphragm 21 and the voice coil 22, so that the voice coil 22 drives the diaphragm 21 to vibrate and produce sound.

Specifically, the frame body 231 includes a ring-shaped main body portion 2311 connected to the frame side wall 232 , and a ring-shaped main body portion 2311 formed by the depression of the upper surface of the inner peripheral edge of the main body portion 2311 toward the magnetic circuit system 3 . The skeleton step 2312 , the skeleton fixing portion 2313 bent and extended in the direction of the voice coil 22 by the skeleton step 2312 , and the hollow skeleton hole 2310 surrounded by the skeleton step 2312 .

Wherein, the diaphragm is fixed on the main body portion 2311 . Specifically, the vibration part 213 and the second weight part 2142 are attached and fixed to the main body part 2311 respectively. The frame fixing portion 2313 is attached and fixed to the side of the voice coil 22 away from the magnetic circuit system 3 . The frame fixing portion 2313 is used for connecting with the voice coil 22 .

The frame side wall 232 is wound around the voice coil 22 and is spaced from the voice coil 22 .

The elastic member 4 is fixed to the basin frame 1 and connected to the end of the frame 23 away from the diaphragm 21 . Specifically, the elastic member 4 includes a first elastic member 41 and a second elastic member 42 respectively located on opposite sides of the voice coil.

The first elastic member 41 is fixed to the basin frame 1 and connected to the end of the frame 23 away from the diaphragm 21 . Specifically, the first elastic member 41 includes an elastic member body 401 and a pad portion 411 extending from the elastic member body 401 in a direction close to the voice coil 22 .

The pad portion 411 includes a first extension wall 4111 bent and extended from the elastic member body 401 in the direction of the diaphragm 21 , and a side from the first extension wall 4111 away from the elastic member body 401 . The second extension wall 4112 is bent and extended in the direction of the voice coil 22 .

Specifically, the elastic body 401 includes a first fixing arm 4011 fixed to the basin frame 1 , a first fixing arm 4011 connected to an end of the frame side wall 232 away from the diaphragm 21 and spaced from the first fixing arm 4011 . The second fixed arm 4012 and the elastic arm 4013 connecting the first fixed arm 4011 and the second fixed arm 4012 . The welding portion 411 is formed by extending the second fixing arm 4012 of the first elastic member 41 . The structure of the elastic member body 401 of the first elastic member 41 is used to improve the vibration strength and balance of the vibration system 2 and suppress the swing.

The first extension wall 4111 is located on the side of the skeleton side wall 232 close to the voice coil 22 . In this embodiment, the first extension wall 4111 is fixed to the frame side wall 232 .

The second extension wall 4112 is fixed to the frame body 231 .

The first elastic member 41 is a flexible circuit board. The pad portion 411 is electrically connected to the voice coil 22 . Specifically, the second extension wall 4112 is electrically connected to the voice coil 22 . On the one hand, the structure of the first elastic member 41 is used to improve the vibration strength and balance of the vibration system 2 and suppress the swing, and on the other hand, the voice coil 22 is led out to connect to an external power source, so as to avoid the lead structure of the voice coil to lead out the power source. Risk of easy breakage of the voice coil leads.

The second elastic member 42 is fixed to the basin frame 1 and is connected to the end of the frame 23 away from the diaphragm 21 . Specifically, the second elastic member 42 includes the elastic member body 401 . The structure of the elastic member body 401 of the second elastic member 42 is used to improve the vibration strength and balance of the vibration system 2 and suppress the swing.

In this embodiment, the voice coil 22 has a rectangular structure. The first elastic member 41 and the second elastic member 42 are respectively located on opposite sides of the voice coil 22 . On the one hand, this structure is used to strengthen the vibration effect of the diaphragm 21 and improve the acoustic performance of the sounding device 100 , and on the other hand, it is used to balance the swing of the vibration system 2 and improve the stability of the sounding device 100 .

Since the pad portion 411 is fixed to the frame 23 and the frame is connected to the diaphragm 21 , the diaphragm 21 connected to the frame 23 is located on opposite sides of the voice coil. Mass imbalance. The disposition of the sound generating device 100 through the weight portion 214 enables the masses of the vibration system 2 on opposite sides of the voice coil to reach a balance. The structure is specifically:

The weight portion 214 extends from a side of the vibrating portion 213 corresponding to the second elastic member 42 . The weight portion 214 is attached to the diaphragm 21 and/or the frame 23 , so that the vibration system 2 corresponds to one side of the first elastic member 41 and one side corresponding to the second elastic member 42 . Side mass balance.

The first counterweight portion 2141 extends from the vibrating portion 213 to the magnetic circuit system 3 along the periphery of the frame side wall 232 . The first weight portion 2141 is attached and fixed to the frame side wall 232 . In this structure, the first counterweight portion 2141 and the first extension wall 4111 are respectively disposed symmetrically with respect to the short-axis mass of the skeleton body 231 .

At the same time, the second weight portion 2142 extends from the vibrating portion 213 along the surface of the frame body 231 on the side away from the magnetic circuit system 3 . The second weight portion 2142 is attached and fixed to the frame body 231 . In this structure, the second weight portion 2142 and the second extension wall 4112 are respectively disposed symmetrically with respect to the short axis of the frame body 231 .

The above structure sets the structure of the first weight portion 2141 and the second weight portion 2142 through the diaphragm 21, while the first extension wall 4111 and the second extension wall 4112 pass through the frame 23 is connected to the opposite side of the diaphragm 21, so that the masses of the diaphragm 21 on the opposite sides of the voice coil 22 are balanced, that is, the vibration system 2 corresponds to the first elastic member 41 One side is mass-balanced with the side corresponding to the second elastic member 42, so as to reduce the risk of mass asymmetry of the vibration system 2, thereby reducing the amplitude swing of the diaphragm 21 caused by the mass asymmetry, Therefore, the acoustic performance of the sound-emitting device 100 is good. In this embodiment, the first counterweight portion 2141 and the first extension wall 4111 have the same mass; the second counterweight portion 2142 and the second extension wall 4112 have the same mass. This arrangement makes it easier to realize the mass balance between the side of the vibration system 2 corresponding to the first elastic member 41 and the side corresponding to the second elastic member 42 , and it is also easy to achieve in the process, so that the acoustic Good performance.

In order to better balance the mass symmetry of the diaphragm 21 , in this embodiment, the first weight portion 2141 and the first extension wall 4111 are along the same axis parallel to the long axis of the skeleton body 231 . Axial symmetry setting. The second weight portion 2142 and the second extension wall 4112 are symmetrically disposed along the same axis parallel to the long axis of the frame body 231 . The structure symmetrically arranged on the same axis is beneficial to the vibration of the diaphragm 21 , the amplitude consistency of the diaphragm 21 is good, and the acoustic performance of the sound-emitting device 100 is good.

More preferably, the first counterweight portion 2141 and the first extension wall 4111 are symmetrically arranged along a central axis parallel to the long axis of the skeleton body 231 , and the second counterweight portion 2142 and the first The two extending walls 4112 are symmetrically disposed along the central axis parallel to the long axis of the frame body 231 . In this structure, by setting the axis for symmetrical arrangement as the central axis of the long axis, the amplitude consistency of the diaphragm 21 is better.

In this embodiment, the first weight portion 2141 and the first extension wall 4111 have the same shape. This structure is beneficial to adjust the effect of equal quality of the first weight portion 2141 and the first extension wall 4111 .

In order to adjust the effect of the second weight portion 2142 and the second extending wall 4112 having the same mass. In this embodiment, both ends of the second weight portion 2142 along the short axis direction of the vibrating film 21 are respectively connected to the vibrating portion 213 . That is to say, the structure is wider than the area of the vibrating portion 213 of the diaphragm 21 on the same side of the second elastic member 42 , so that the structure is easy to manufacture. Of course, it is not limited to this, and the shape of the second weight portion 2142 can be adjusted according to actual needs, as long as the effect of the same quality as that of the second extension wall 4112 can be ensured. Please refer to FIG. 7 . FIG. 7 is a schematic three-dimensional structural diagram of another embodiment of the diaphragm in FIG. 6 . In another embodiment, the second weight portion 2142a is formed by protruding from the vibration portion 213a. More preferably, the second weight portion 2142a and the second extending wall 4112 have the same shape. This structure makes it easier for the designer to adjust the shape of the second weight portion 2142 to achieve an effect equal to the quality of the second extension wall 4112 .

The dome 24 is attached and fixed to the frame step 2312 and completely covers the frame hole 2310 . In this structure, through the cooperation of the dome 24 and the frame step 2312 , the bonding state of the dome 246 and the frame step 2312 can be easily controlled, thereby improving the reliability of the diaphragm 21 .

The main body part 2311 is attached to the vibration part 213 so that the dome 24 , the frame step 2312 and the main body part 2311 completely cover the through hole 2130 .

In this embodiment, the height of the side of the second weight portion 2142 away from the magnetic circuit system 3 is smaller than the height of the side of the dome 24 away from the magnetic circuit system 3 . With this structure, the second weight portion 2142 does not need to occupy the space of the sound-emitting device 100 in the vibration direction of the diaphragm 21 , that is to say, there is no need to increase the space of the sound-emitting device 100 in the thickness direction thereof.

The auxiliary diaphragm 25 is connected to the auxiliary diaphragm 25 on the side of the elastic body 401 away from the diaphragm 21 . Specifically, the auxiliary diaphragms 25 include two and are located on opposite sides of the voice coil 22 respectively. One end of each auxiliary diaphragm 25 is attached and fixed to the first fixing arm 4011 . The other end of the membrane 25 is fixed to the second fixing arm 4012 . The auxiliary diaphragm 25 is used to improve the vibration strength and balance of the vibration system 2 and restrain swing.

The magnetic circuit system 3 includes a magnetic yoke 31 opposite to the diaphragm 21 , a main magnetic steel 32 and a secondary magnetic steel 33 respectively fixed to the magnetic yoke 31 , stacked and fixed near the main magnetic steel 32 . The main pole core 34 on the side of the vibrating membrane 21 and the secondary pole core 35 on the side of the secondary magnetic steel 33 close to the vibrating membrane 21 are stacked and fixed.

The auxiliary magnetic steel 33 surrounds the main magnetic steel 32 and is spaced apart from the main magnetic steel 32 to form a magnetic gap 30 , and the voice coil 22 is inserted into the magnetic gap 30 .

Both the secondary pole core 35 and the secondary magnetic steel 33 are disposed on the inner side of the skeleton side wall 232 at intervals.

The above are only the embodiments of the present utility model. It should be pointed out that for those of ordinary skill in the art, improvements can be made without departing from the inventive concept of the present utility model, but these belong to The scope of protection of the utility model.

Claims

A sounding device comprising a basin frame, a vibration system fixed on the basin frame, and a magnetic circuit system for driving the vibration system to emit sound;

The vibration system includes a vibrating membrane fixed on the basin frame, a voice coil that drives the vibrating membrane to vibrate and sound, a frame connecting the voice coil to the vibrating membrane, and a diaphragm fixed to the basin frame and connected to the vibrating membrane. an elastic member connected to one end of the frame away from the vibrating membrane, the elastic member includes a first elastic member and a second elastic member respectively located on opposite sides of the voice coil,

The vibrating membrane includes a vibrating portion, a ring portion bent and extended from the periphery of the vibrating portion, and a fixing portion bent and extended from the ring portion to a side away from the vibrating portion, and the fixing portion is fixed in said basin frame;

Both the first elastic member and the second elastic member include an elastic member body, and the first elastic member further includes a pad portion extending from the elastic member body in a direction close to the voice coil. The part is electrically connected with the voice coil;

It is characterized in that, the vibrating film further comprises a counterweight portion extending from a side of the vibrating portion corresponding to the second elastic member, and the counterweight portion is attached to the vibrating film and/or the skeleton, So that the vibration system has a mass balance on the side corresponding to the first elastic member and the side corresponding to the second elastic member.
The sound-emitting device according to claim 1, wherein the skeleton comprises a skeleton body and a skeleton side wall extending from the outer periphery of the skeleton body to the direction of the magnetic circuit system, and the skeleton body is fixed to the The vibrating part is close to the side of the magnetic circuit system, the voice coil is fixed on the side of the skeleton body close to the magnetic circuit system, the side wall of the skeleton is wound around the voice coil and is connected with the voice coil interval setting;

The pad portion includes a first extension wall bent and extended from the elastic member body to the direction of the diaphragm, and a direction from the first extension wall away from the elastic member body to the voice coil The second extension wall is bent and extended, the first extension wall is located on the side of the side wall of the frame close to the voice coil, the second extension wall is fixed on the frame body, and the second extension wall is connected to the frame body. the voice coil is electrically connected;

The counterweight part includes a first counterweight part and a second counterweight part, the first counterweight part is extended from the vibration part to the magnetic circuit system along the periphery of the side wall of the frame, and the first counterweight part is The counterweight part is attached and fixed to the side wall of the frame; the second counterweight part is extended from the vibration part along the surface of the frame body on the side away from the magnetic circuit system, and the second counterweight part is attached to the side wall of the frame body. be fixed on the skeleton body;
The sound-emitting device according to claim 2, wherein the first counterweight part has the same mass as the first extension wall, and the second counterweight part has the same mass as the second extension wall.
The sound-emitting device according to claim 2, characterized in that,

the vibrating part is provided with a through hole passing through it;

The frame body includes an annular main body part connected to the frame side wall, an annular frame step formed by the upper surface of the inner peripheral edge of the main body part concave in the direction of the magnetic circuit system, and the frame The frame fixing part bent and extended in the direction of the voice coil by the step and the hollow frame hole enclosed by the frame step; the vibration part and the second counterweight part are respectively fitted and fixed to the main body part , the frame fixing part is attached and fixed to the side of the voice coil away from the magnetic circuit system;

The vibration system further includes a dome that is fitted and fixed to the frame step and completely covers the frame hole, and the main body part is fitted to the vibration part so that the dome, the frame step and the The main body parts together completely cover the through hole.
The sound-generating device according to claim 4, wherein the height of the side of the second weight portion away from the magnetic circuit system is smaller than the height of the side of the dome away from the magnetic circuit system.
The sound-emitting device according to claim 4, wherein the first counterweight portion and the first extension wall are symmetrically arranged along the same axis parallel to the long axis of the skeleton body, and the second The weight portion and the second extension wall are symmetrically arranged along the same axis parallel to the long axis of the frame body.
The sound-generating device according to claim 6, wherein the first counterweight portion and the first extension wall are symmetrically arranged along a central axis parallel to the long axis of the skeleton body, and the second counterweight The weight portion and the second extension wall are symmetrically arranged along a central axis parallel to the long axis of the skeleton body.
The sound-emitting device according to claim 6, wherein the first weight portion and the first extension wall have the same shape.
The sound-generating device according to claim 6, wherein two ends of the second weight portion along the short axis direction of the vibrating film are respectively connected to the vibrating portion.
The sounding device according to claim 6, wherein the second weight portion is formed by protruding from the vibrating portion.
The sound-generating device according to claim 10, wherein the second weight portion has the same shape as the second extending wall.
The sound-generating device according to claim 1, wherein the elastic member body comprises a first fixing arm fixed to the basin frame, connected to an end of the side wall of the frame away from the diaphragm, and connected to the first fixing arm. a second fixed arm spaced between fixed arms, an elastic arm connecting the first fixed arm and the second fixed arm, and the welding portion is formed by extending the second fixed arm of the first elastic member;

The vibration system also includes an auxiliary diaphragm connected to the side of the elastic member body away from the diaphragm, the auxiliary diaphragm includes two and is located on opposite sides of the voice coil, each of the auxiliary diaphragms. One end of the diaphragm is attached and fixed to the first fixing arm, and the other end of the auxiliary diaphragm is fixed to the second fixing arm.