WO2021056900A1

WO2021056900A1 - Sound production device and electronic apparatus

Info

Publication number: WO2021056900A1
Application number: PCT/CN2019/129012
Authority: WO
Inventors: 黄信河; 董志永
Original assignee: 歌尔股份有限公司
Priority date: 2019-09-28
Filing date: 2019-12-27
Publication date: 2021-04-01
Also published as: CN110708643A

Abstract

Disclosed is a sound production device, comprising a housing, and a vibration system and a magnetic circuit system installed on the housing, wherein the vibration system comprises a diaphragm assembly and a voice coil assembly fixedly connected to the diaphragm assembly, the magnetic circuit system comprises at least one magnetic circuit unit, the voice coil assembly is correspondingly provided with at least one voice coil unit, and one end of the voice coil unit away from the magnetic circuit unit is installed on the diaphragm assembly. The sound production device further comprises at least two elastic components, wherein the elastic component is configured to be separated from the voice coil assembly, one end of the elastic component is fixedly connected to the diaphragm assembly, and the other end thereof is connected to the housing. The sound production device of the present invention can meet design requirements of narrow and thin products, increases the space utilization rate of the products, and optimizes the product performance.

Description

Sound device and electronic equipment

Technical field

The invention relates to a sound emitting device and electronic equipment using the sound emitting device.

Background technique

At present, with the development trend of thinner and lighter consumer electronic terminal products, how to configure acoustic components to perform better in a limited product space through the configuration of structures and materials has become a major issue that the industry must face . The actual design difficulty is: As the internal space is becoming more and more limited, the speaker design conditions are more and more restricted by the structure, but the performance requirements are getting higher and higher.

Taking the multi-drive speakers used in terminals such as flat-panel TVs as an example, in the prior art, most of them are narrow and long racetrack-shaped speakers. Common designs mainly include the following two:

1. For example, as shown in Fig. 1, in this structure, the vibrating parts of the multi-drive horn include the voice coil assembly 5'and the diaphragm assembly 6', and there is no centering support piece design. Although the structure represented by Fig. 1 can make the speaker very thin and narrow, it can meet the development trend of light and thin, and because there is no support piece, the problem of non-linear distortion of the support piece can be reduced. But its own defects are also very obvious:

One is that at high power and long stroke, because only the folding ring in the diaphragm assembly 6'is suspended, the structure is that only the top of the voice coil assembly 5'is constrained and supported. When the height of the voice coil is higher, its vibration When the centering support is worse, the voice coil assembly will vibrate up and down in the magnetic gap, which will cause pure tone failure and reduce the production yield of the product. Second, this structure is only suitable for small stroke products due to insufficient support, and the sound performance is serious. Reduced, but also can not withstand high-power load work.

In order to improve the above constraints, some industries in the industry have adopted the method of injecting magnetic fluid into the magnetic gap of the magnetic circuit system. This method has a certain effect on improving the alignment and the power of the voice coil assembly, but it also brings new ideas. For example, the magnetic fluid is a liquid, it will follow the vibration of the voice coil component during a long stroke, it will condense and fail at high temperature and cause defects, and the relatively high price itself will easily lead to problems such as a decline in the market competitiveness of the product. In short, the addition of magnetic fluid can improve the centering effect of the voice coil to a certain extent, but it is still difficult to achieve substantial improvement in terms of high power and long stroke.

2. For example, as shown in Figure 2, it shows a relatively traditional speaker structure in the prior art. In addition to the voice coil assembly 5'and the diaphragm assembly 6', the vibration system is also provided with a circular centering support piece 7'separately, and the centering support piece 7'is bonded to the voice coil assembly 5'. This kind of structure technology is relatively mature and has good performance in terms of performance. It can meet the needs of high-power and long-stroke, but the disadvantage is that it is limited by the circular support plate bonded to the voice coil assembly, and it is used on the narrow and long structure speaker. , The voice coil cannot be maximized to provide the maximum driving force, and the performance cannot be maximized. In addition, because the centering support piece needs space to vibrate up and down, the lead wire from the voice coil also needs vibration space. When the two vibrate at the same time, it needs to provide twice the vibration space, so this type of structure cannot be narrower. Thinner, it can only be used in the design of larger size. In the face of the current trend of light, thin and narrow products, this structure cannot well meet the development needs, and the application range is too narrow. It is used in products with narrow and long thin structure. , There is almost no market competitiveness.

In summary, it is necessary to develop a new product design that can achieve a good balance in terms of performance and size, which can not only adapt to the current development trend of light and thin, but also make full use of the internal design space to achieve better acoustic performance. Great.

Summary of the invention

The technical problem to be solved by this patent is to change the structural design of the existing loudspeaker so that it can be widely used in products in various scenes, and the acoustic performance is further optimized.

As an inventive concept of the present invention, the specific technical solutions provided by the present invention are:

A sound generating device includes a housing, a vibration system and a magnetic circuit system installed on the housing; the vibration system includes a diaphragm assembly and a voice coil assembly fixedly connected to the diaphragm assembly, wherein the The magnetic circuit system includes at least one magnetic circuit unit, the voice coil assembly is correspondingly provided with at least one voice coil unit, and an end of the voice coil unit away from the magnetic circuit unit is installed on the diaphragm assembly;

It also includes at least two elastic components; the elastic components are configured to be separated from the voice coil assembly, and one end of the elastic component is connected and fixed to the diaphragm assembly, and the other end is connected to the housing.

Preferably, the magnetic circuit system includes a magnetic circuit unit, and the voice coil assembly is correspondingly provided with a voice coil unit;

There are two elastic members. In the direction perpendicular to the vibration of the sounding device, the two elastic members are respectively arranged on both sides of the voice coil unit, and are respectively connected with the diaphragm assembly .

Preferably, the magnetic circuit system includes two independently arranged magnetic circuit units; the voice coil assembly includes a first voice coil unit and a second voice coil unit, the first voice coil unit and the second voice coil The units are respectively corresponding to one of the magnetic circuit units;

There are two elastic members. In the direction perpendicular to the vibration of the sounding device, the two elastic members are respectively arranged on the outer side of the first voice coil unit and the second voice coil unit, and are respectively connected to the vibration The membrane modules are connected together.

Preferably, the housing includes a first mounting portion for mounting the magnetic circuit system, and a second mounting portion for accommodating the elastic component.

Preferably, the housing includes a first installation plane for installing the magnetic circuit system, and a second installation plane for connecting the diaphragm assembly; the first installation part is arranged in the first installation On a plane, the second mounting portion is vertically formed between the first mounting plane and the second mounting plane.

Preferably, the first mounting portion and the second mounting portion are mounting holes surrounded by an annular wall.

Preferably, the diaphragm assembly is elongated, and includes a folding ring and a carcass located inside the folding ring.

Preferably, the first voice coil unit, the second voice coil unit and the elastic member are connected and fixed on the carcass, and they are all located on the side of the carcass facing the magnetic circuit system.

Preferably, the first voice coil unit and the second voice coil unit are arranged and installed in the middle area of the carcass, and the two elastic members are connected to the edge area of the carcass.

Preferably, a fixing part connected with the diaphragm assembly is provided on the elastic member;

The fixing portion is a convex structure extending from the middle surface of the elastic component in the direction of the diaphragm assembly.

Preferably, the elastic member is configured as a closed ring structure.

Preferably, the magnetic circuit system includes a plurality of magnetic circuit units, and the voice coil assembly is correspondingly provided with a plurality of voice coil units;

In the direction perpendicular to the vibration of the sound generating device, the elastic member is arranged at least outside the two voice coil units located at the edge.

Preferably, the diaphragm assembly is a long strip structure arranged in a horizontal direction, the voice coil units are arranged in parallel in the horizontal direction, and the elastic member is connected and fixed to the diaphragm assembly in the vertical direction.

Preferably, the minimum thickness of the sound emitting device is less than or equal to 10 mm.

The sound device provided by the present invention innovatively adopts the design of separating the elastic component and the voice coil assembly, which is completely different from the structure in which the support piece and the voice coil are superimposed and assembled in the traditional structure, and can effectively liberate the centering support piece in the prior art. The occupied space can maximize the diameter of the voice coil while making the product thinner to increase the driving force; in addition, in the present invention, the elastic component is directly connected and fixed on the diaphragm assembly to increase the gap between the carcass and the elastic component. The binding force, in terms of mechanical balance analysis, makes the sound device have better neutrality and stability when working under high-power and long-stroke conditions. Compared with the prior art, it can be used as a voice coil assembly without the need for a separate injection of magnetic fluid. Provides good alignment.

According to another concept of the present invention, there is also provided an electronic device including the above-mentioned sound emitting device.

The electronic device of the present invention has better acoustic performance.

Through the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings, other features and advantages of the present invention will become clear.

Description of the drawings

The drawings incorporated in the specification and constituting a part of the specification illustrate the embodiments of the present invention, and together with the description are used to explain the principle of the present invention.

Fig. 1 is a schematic cross-sectional view of a sound generating device of prior art 1;

Figure 2 is a sectional view of the prior art 2 sound generating device;

FIG. 3 is a front appearance view of a sound generating device according to an embodiment of the present invention;

Figure 4 is an exploded view of the sound generating device according to the embodiment of the present invention;

Figure 5 is a schematic cross-sectional view of a sound emitting device according to an embodiment of the present invention;

Fig. 6 is a structural diagram of an elastic component of a sound generating device according to an embodiment of the present invention;

Fig. 7 is a schematic cross-sectional view of an elastic component of a sound generating device according to an embodiment of the present invention;

FIG. 8 is a schematic diagram of assembling the housing of the sound generating device with the magnetic circuit, the elastic component and the voice coil assembly according to the embodiment of the invention.

Description of reference signs:

1. Magnetic yoke, 2. Main magnet, 3. Magnetic plate, 4. Secondary magnet, 5', Voice coil assembly, 5. Voice coil assembly, 51, First voice coil unit, 52, Second voice coil unit , 53, Brocade thread, 6', diaphragm assembly, 6, diaphragm assembly, 61, folding ring, 610, stiffener, 62, carcass, 7', centering support piece, 7, elastic component, 71, fixed part , 8, housing, 81, first installation plane, 811, first installation part, 82, second installation plane, 821, second installation part, 83, threading hole, 9, terminal, 10, first air flow channel, 11. The second air flow channel.

detailed description

Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that unless specifically stated otherwise, the relative arrangement of components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention.

The following description of at least one exemplary embodiment is actually only illustrative, and in no way serves as any limitation to the present invention and its application or use.

The technologies, methods, and equipment known to those of ordinary skill in the relevant fields may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be regarded as part of the specification.

In all examples shown and discussed herein, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiment may have different values.

It should be noted that similar reference numerals and letters indicate similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in the subsequent drawings.

According to one aspect of the present invention, the present invention provides a sound generating device, which includes a housing and a vibration system and a magnetic circuit system mounted on the housing. The vibration system includes a diaphragm assembly and a voice coil assembly fixedly connected to the diaphragm assembly, The magnetic circuit system includes at least one magnetic circuit unit, the voice coil assembly is correspondingly provided with at least one voice coil unit, the end of the voice coil unit far from the magnetic circuit unit is installed on the diaphragm assembly, and also includes at least two elastic components, the elastic components are configured In order to be separated from the voice coil assembly, and the elastic member is connected and fixed with the diaphragm assembly.

The present invention will be further explained below in conjunction with the drawings.

Examples:

For example, as shown in Figs. 3 to 8, the sound emitting device of this embodiment is described by taking a dual-drive sound emitting device applied to a narrow and thin electronic device as an example. It includes a casing 8 and a magnetic circuit system and a vibration system assembled on the casing 8. Wherein, the magnetic circuit system may specifically include a magnetic yoke 1, a main magnet 2, a magnetic conductive plate 3, and a secondary magnet 4. The magnetic yoke 1 may be configured in a bowl-shaped structure, and the ring-shaped side wall is between the magnet and the magnetic conductive plate. Form a magnetic gap. The above is the content understood by those skilled in the art, and will not be repeated here. It should be noted that this embodiment only shows the structure of a magnetic circuit system, and in actual design, it is not limited to the above-shown manner. For example, the auxiliary magnet 4 may not be provided, and for another example, the magnetic yoke 1 may not be provided in a bowl-shaped structure, and may also be structured in other shapes. These cannot affect the implementation of this technical solution.

The vibration system includes a voice coil assembly 5 and a diaphragm assembly 6. The voice coil assembly includes two voice coil units, namely a first voice coil unit 51 and a second voice coil unit 52, and the diaphragm assembly 6 can be configured as a long strip. The shape includes a fold ring 61 on the outside and a carcass on the inside of the fold ring 61.

When assembling, the diaphragm assembly 6 is arranged in the horizontal direction as a whole, while the first voice coil unit 51 and the second voice coil unit 52 are arranged in parallel (in parallel) in the horizontal direction, and the two voice coil units are arranged in the vertical direction. Connect with the diaphragm assembly 6. Of course, specifically, each voice coil unit may include a skeleton and a voice coil wound on the outside of the skeleton, and the voice coil unit and the diaphragm assembly 6 are connected together by the skeleton. For the folding ring 61 and the carcass 62, the side of the folding ring 61 close to the carcass 62 is provided with a connecting surface extending in the horizontal direction, and the carcass 62 includes a horizontally arranged inner connecting portion located in the middle and an outer connecting portion located outside the inner connecting portion. The arc-shaped part and the horizontally arranged outer connecting part located outside the arc-shaped part, and the connecting surface of the folding ring 61 can be attached and fixed to the outer connecting part of the carcass. Of course, the specific structure and shape of the diaphragm assembly 6 are not limited here, and only an exemplary introduction is made.

It is easily understood by those skilled in the art that the folding ring 61 may include one or more convex arc-shaped structures. Of course, as shown in this embodiment, the carcass 62 may also include an arc-shaped portion. It is also possible to provide one or more arc-shaped convex structures, which will not be repeated here.

In this embodiment, the folding ring 61 is also provided with a number of reinforcing ribs 610. These reinforcing ribs 610 are evenly arranged along the annular surface of the folding ring, which can increase the rigidity of the folding ring 61 itself.

In this embodiment, two elastic members 7 are further included. Unlike the practice in the prior art, the elastic member 7 is a structure completely separated from the voice coil assembly 5, and is not connected to the voice coil assembly 5 in any way. It is directly connected to the diaphragm assembly 6 in the vertical direction.

It can be seen from the legend of this embodiment that the first voice coil unit 51, the second voice coil unit 52, and the two elastic members 7 are all connected to the carcass 62, and they are all located on the side of the carcass 62 facing the magnetic circuit system. Further, during specific assembly, the first voice coil unit 51 and the second voice coil unit 52 can be installed in the middle area of the carcass 62, and the two elastic components 7 can be connected to the edge area of the carcass 62, that is to say Viewed from the direction perpendicular to the vibration of the vibration system (that is, viewed from the horizontal direction), the elastic member 7 is located on the outer side of the two voice coil units, but it is still connected to the carcass 62.

Those skilled in the art are well aware that the circular centering support used in the prior art is generally designed as an annular structure with a middle hole, wherein the middle hole is used to connect and fix the frame. In this embodiment, the elastic member 7 can be set as a closed ring structure. In its entire structure design, no through holes are required, but a fixed portion 71 can be formed on the surface of the middle part. It is used for connecting and fixing with the carcass 62. Specifically, as shown in the embodiment, the fixing portion may be a convex structure extending from the middle surface of the elastic member 7 in the direction of the carcass 62. It is not ruled out here that the convex structure is arranged in a position other than the middle part, but it is easy to understand that when arranged in the middle part, this fixing method is the most stable and uniform, and it is not easy to cause problems such as polarization.

As mentioned above, since in this embodiment, the elastic member 7 and the voice coil assembly 5 are completely separate designs, for the elastic member 7 itself, its choices in terms of shape, material and structure can be more diverse and flexible. For example, its shape can also be round, square, etc. according to structural requirements. Of course, according to the principle of balance, a circular structure may be preferred. The selection of the elastic component 7 can not be limited to the existing metal materials, but can choose higher-compliant cloth, foam and other materials. This type of material has a wide adjustable range and is easy to achieve a lower F0. Compared with the metal centering support piece, it can improve the non-linear distortion caused by it, and it is easier to realize the various indicators of the acoustic performance.

It can be seen from the foregoing that, on the basis of the prior art, this embodiment comprehensively considers the technical problems caused by the design of

prior art

1 and 2 and innovatively uses a design in which the elastic member 7 is separated from the voice coil assembly 5. The internal space can be reasonably used when the space of the narrow and long sounding device is limited, so that the bearing power of the sounding device is increased, and the neutralization of the product is improved when the product is vibrated, and the acoustic components are reasonably arranged and assembled to make the entire vibration The system achieves the best balance and centering effect. It is specifically manifested in the following aspects:

First, the elastic component 7 is assembled separately from the voice coil assembly 5 to optimize the structure of the vibration system of the sound generating device. It is completely different from the structure in which the centering support piece must be glued to the voice coil frame in the traditional prior art 2. It changes the traditional way of stacking the support piece and the voice coil assembly, effectively freeing up the valuable space occupied by the support piece, and can be used in the product. It can be thinner while maximizing the diameter of the voice coil assembly to provide the greatest driving force and improve the sound pressure level of the speaker.

On the basis of this structural design, the minimum thickness of the sound device as a whole can be 10 mm or less, which is not achieved by the speaker product design in the prior art.

Second, compared with the structure of the prior art 1, the single-point restraining force of the top of the voice coil assembly is changed to increase the restraining force of the elastic member 7 on the carcass 62, and in the mechanical balance analysis, the sound generating device It has better alignment and stability when working under high-power and long-stroke conditions, and does not require complicated methods such as magnetic fluid injection, so as to avoid various problems derived from traditional magnetic fluid injection, reduce costs and improve Product market competitiveness.

Third, since the long and narrow diaphragm assembly is prone to distortion and bending along the long axis direction, the design of the elastic component pasted on the carcass can increase the rigidity of the diaphragm assembly, effectively improve the distortion and bending problems, and can Suppress the split vibration, thereby improving the various peaks and valleys caused by the split vibration of the sound device, and improve the sound quality.

It should be noted that this embodiment shows only a dual-drive sounding device, which is mainly designed for narrow and long thin products, but in actual application, this technical solution can be applied to a common single-drive sounding device at the same time. And in two or more multi-drive sound generating devices, the number of specific drive units is not limited, and it is not limited whether it is an ultra-thin speaker product. For example: when only one magnetic circuit unit and one voice coil unit are provided, that is, when the sound generating device has a single-drive structure, two elastic components 7 need to be provided. Similarly, two elastic components are provided perpendicular to the vibration direction. The components 7 are respectively arranged on both sides of the voice coil unit, and are respectively connected with the diaphragm assembly. For another example: when multiple magnetic circuit units and multiple voice coil units are provided, in the direction perpendicular to the vibration of the sounding device, two or more elastic parts can be designed according to specific product requirements, but the elastic parts 7 should be at least It is arranged on the outside of the two voice coil units located on the edge.

In addition, as shown in the embodiment, the housing 8 includes a first mounting portion 811 for mounting the magnetic circuit system, and a second mounting portion 821 for accommodating the elastic component 7. Specifically, the housing 8 includes a mounting magnetic circuit The first installation plane 81 of the system and the second installation plane 62 for connecting the diaphragm assembly 6 are a top surface and a bottom surface. It is easy to understand that the first installation portion 811 is set on the first installation plane 81 , And the second mounting portion 821 needs to be connected to the peripheral surface of the elastic component 7 and the elastic component 7 is to be connected to the diaphragm assembly 6. In order to facilitate assembly, the second mounting portion 821 can be formed on the first mounting plane 81 and the second mounting plane. Between plane 82. The height of the first installation plane 81 in the vertical direction is smaller than that of the second installation plane 82. The first mounting part 811 and the second mounting part 821 mentioned here are both mounting holes. The shape and size of the mounting holes match the shape and size of the magnetic circuit unit and the elastic member 7 respectively. The mounting holes are all surrounded by a ring-shaped wall. , The annular wall can be integrally formed with the housing 8.

In addition, in the sound generating device, an air flow channel is also provided on the back side of the diaphragm assembly 6. During implementation, the length between the first installation plane 81 and the second installation plane 82 in the horizontal direction is different, and the second installation plane The portion 82 longer than the first installation plane 81 forms the first air flow channel 10. A second air flow channel 11 is formed between the surrounding wall of the second installation portion 821 and the first installation plane 81.

The housing 8 is also provided with a threading hole 83 through which the brocade wire 53 of the voice coil unit passes. Taking this embodiment as an example, the first voice coil unit 51 and the second voice coil unit 52 respectively lead out two brocade wires 53. The brocade threads 53 can pass through the threading hole 83 in series (or in parallel), and are electrically connected to the terminal 9 fixed in the middle of the first installation plane 81 of the housing 8. The terminal 9 is connected with the external circuit at the same time, thereby forming the transmission of the current signal from the outside to the inside, which supports the normal operation of the sound generating device. The specific electro-acoustic conversion principle is well known to those skilled in the art, and will not be repeated here.

According to another aspect of the present invention, the technical solution also provides an electronic device that includes the above-mentioned sound emitting device. Specifically, the electronic device may be a long, narrow, and thin terminal product such as a flat-screen TV, or it may be Speakers and other terminal products. Electronic equipment using this kind of sounding device can have higher sensitivity and lower distortion, and can meet the requirements for sounding devices under high power and large stroke.

Although some specific embodiments of the present invention have been described in detail through examples, those skilled in the art should understand that the above examples are only for illustration and not for limiting the scope of the present invention. Those skilled in the art should understand that the above embodiments can be modified without departing from the scope and spirit of the present invention. The scope of the invention is defined by the appended claims.

Claims

A sound generating device includes a housing, a vibration system and a magnetic circuit system installed on the housing; the vibration system includes a diaphragm assembly and a voice coil assembly fixedly connected to the diaphragm assembly, and is characterized in that:

The magnetic circuit system includes at least one magnetic circuit unit, the voice coil assembly is correspondingly provided with at least one voice coil unit, and an end of the voice coil unit away from the magnetic circuit unit is installed on the diaphragm assembly;

It also includes at least two elastic components; the elastic components are configured to be separated from the voice coil assembly, and one end of the elastic component is connected and fixed to the diaphragm assembly, and the other end is connected to the housing.
The sounding device according to claim 1, wherein the magnetic circuit system comprises a magnetic circuit unit, and the voice coil assembly is correspondingly provided with a voice coil unit;

There are two elastic members. In the direction perpendicular to the vibration of the sounding device, the two elastic members are respectively arranged on both sides of the voice coil unit, and are respectively connected with the diaphragm assembly .
The sounding device according to claim 1, wherein the magnetic circuit system includes two independently arranged magnetic circuit units; the voice coil assembly includes a first voice coil unit and a second voice coil unit, and the second voice coil unit A voice coil unit and the second voice coil unit are respectively arranged corresponding to one of the magnetic circuit units;

There are two elastic members. In the direction perpendicular to the vibration of the sounding device, the two elastic members are respectively arranged on the outer side of the first voice coil unit and the second voice coil unit, and are respectively connected to the vibration The membrane modules are connected together.
The sound emitting device according to claim 3, wherein the housing includes a first mounting part for mounting the magnetic circuit system, and a second mounting part for accommodating the elastic member.
The sounding device according to claim 4, wherein the housing comprises a first installation plane for installing the magnetic circuit system, and a second installation plane for connecting the diaphragm assembly; The first mounting portion is arranged on the first mounting plane, and the second mounting portion is vertically formed between the first mounting plane and the second mounting plane.
4. The sounding device according to claim 4, wherein the first mounting portion and the second mounting portion are mounting holes surrounded by an annular wall.
3. The sound generating device according to claim 3, wherein the diaphragm assembly has a long strip shape, and includes a folding ring and a carcass located inside the folding ring.
The sounding device according to claim 7, wherein the first voice coil unit, the second voice coil unit and the elastic member are connected and fixed on the carcass, and they are all located on the side of the carcass. One side of the magnetic circuit system.
The sounding device according to claim 7, wherein the first voice coil unit and the second voice coil unit are arranged and installed in the middle area of the carcass, and the two elastic members are connected to the carcass The edge area.
The sound generating device according to claim 1, wherein the elastic member is provided with a fixing part connected with the diaphragm assembly;

The fixing portion is a convex structure extending from the middle surface of the elastic component in the direction of the diaphragm assembly.
The sounding device according to claim 1, wherein the elastic member is configured as a closed ring structure.
The sounding device according to claim 1, wherein the magnetic circuit system comprises a plurality of magnetic circuit units, and the voice coil assembly is correspondingly provided with a plurality of voice coil units;

In the direction perpendicular to the vibration of the sound generating device, the elastic member is arranged at least outside the two voice coil units located at the edge.
The sound generating device according to claim 3 or 12, wherein the diaphragm assembly is a long strip structure arranged in a horizontal direction, the voice coil unit is arranged in parallel in the horizontal direction, and the elastic member is arranged in parallel in the horizontal direction. It is connected and fixed to the diaphragm assembly in the vertical direction.
The sounding device according to claim 1, wherein the minimum thickness of the sounding device is ≤10 mm.
An electronic device, characterized in that it comprises the sound emitting device according to any one of claims 1 to 14.