CN118264963A

CN118264963A - Sound production device, sound production module and electronic equipment

Info

Publication number: CN118264963A
Application number: CN202410306535.5A
Authority: CN
Inventors: 刘华伟; 赵国栋
Original assignee: Goertek Inc
Current assignee: Goertek Inc
Priority date: 2023-12-06
Filing date: 2024-03-18
Publication date: 2024-06-28

Abstract

The invention discloses a sound generating device, a sound generating module and electronic equipment, wherein the sound generating device comprises a magnetic circuit system, a conductive support and a vibration system, a central magnetic part of the magnetic circuit system comprises a central magnet, a central washer and an auxiliary magnet, the magnetic circuit system is provided with a mounting hole which sequentially penetrates through a magnetic yoke, the central magnet and the central washer, the auxiliary magnet is arranged in the mounting hole, the conductive support is arranged in the mounting hole, the auxiliary magnet is arranged between the central magnet and the conductive support, a vibrating diaphragm assembly of the vibration system comprises a vibrating diaphragm, a framework and a ball top opposite to the magnetic circuit system, the framework is provided with the mounting hole corresponding to the conductive support, the ball top is arranged in the mounting hole, one end of a centering support piece is electrically connected with the conductive support, and the other end of the centering support piece is connected with the framework and is electrically connected with a lead wire of a voice coil. The sound generating device has low magnetic flux leakage, and can effectively improve the magnetic field intensity and increase the BL value, thereby improving the acoustic performance.

Description

Sound production device, sound production module and electronic equipment

Technical Field

The present invention relates to electroacoustic transduction technology, and more particularly, to a sound generating device, a sound generating module using the sound generating device, and an electronic device.

Background

In recent years, with rapid development of consumer electronic products, electronic devices such as smart phones and VR devices have been accepted by consumers and have been widely used. Related accessories such as headphones and the like are also improved by those skilled in the art to meet the performance requirements of electronic products and the requirements of consumers on the performance of the products.

Sound emitting devices are important electroacoustic transducer components in consumer electronics, which find wide application as speakers, headphones, earphones, and the like. As the performance of electronic products improves, improvements in acoustic performance of sound emitting devices are also a necessary trend. In order to meet better acoustic performance, the sound generating device often needs to be provided with a magnetic circuit system with larger size and stronger magnetic field strength.

In the related art, the sounding device generally adopts a centering support piece structure, and the centering support piece is arranged at four corners of the sounding device or a short shaft of the sounding device, so that the sounding device occupies a part of space of the magnetic circuit system, the size of a side magnet of the magnetic circuit system is limited and can not be increased, the magnetic field intensity of the magnetic circuit system is reduced, the BL value is reduced, and the acoustic performance of the sounding device is influenced.

Disclosure of Invention

The invention mainly aims to provide a sound generating device, a sound generating module and electronic equipment, and aims to provide the sound generating device capable of effectively increasing a magnetic circuit, and the sound generating device can effectively improve the magnetic field intensity and increase the BL value so as to improve the acoustic performance.

To achieve the above object, the present invention provides a sound emitting device including:

The magnetic circuit system comprises a magnetic yoke, a central magnetic part and a side magnetic part, wherein the central magnetic part and the side magnetic part are arranged on the magnetic yoke, the side magnetic part is positioned on the outer side of the central magnetic part and surrounds the central magnetic part to form a magnetic gap, the central magnetic part comprises a central magnet, a central washer and an auxiliary magnet, the central magnet is clamped between the central washer and the magnetic yoke, the magnetic circuit system is provided with a mounting hole which sequentially penetrates through the magnetic yoke, the central magnet and the central washer, and the auxiliary magnet is arranged in the mounting hole;

The conductive bracket is arranged in the mounting hole, and the auxiliary magnet is positioned between the central magnet and the conductive bracket; and

The vibration system comprises a vibration film assembly, a voice coil and a centering support piece, wherein the vibration film assembly comprises a vibration film, a framework and a ball top, wherein the vibration film is opposite to the magnetic circuit system, an inner annular hole is formed in the center of the vibration film, the framework is arranged in the inner annular hole and is connected with the vibration film, the framework corresponds to the conductive support and is provided with an assembly hole, the ball top cover is arranged in the assembly hole, one end of the voice coil is connected with the vibration film or the framework, the other end of the voice coil is suspended in the magnetic gap, one end of the centering support piece is electrically connected with the conductive support, and the other end of the centering support piece is electrically connected with the framework and is electrically connected with a lead of the voice coil.

In an embodiment, the inner wall of the mounting hole, the auxiliary magnet and the conductive bracket enclose to form a vibration space avoiding the centering support piece;

and/or the auxiliary magnet and the central magnet are of an integrated structure; or the auxiliary magnet is bonded and connected with the central magnet;

And/or the auxiliary magnet is annularly arranged; or, the auxiliary magnets comprise a plurality of auxiliary magnets which are arranged at intervals and surround the conductive bracket;

And/or, a mounting groove is formed in one side of the central magnet and/or the conductive support, which faces the auxiliary magnet, and at least part of the auxiliary magnet is limited in the mounting groove.

In one embodiment, the side magnetic part comprises a side magnet and Bian Huasi arranged on the side magnet;

the side magnets and Bian Huasi form a closed annular structure; or, the side magnets and Bian Huasi are all multiple and are arranged in a one-to-one correspondence manner, and adjacent side magnets are connected end to form a closed annular structure.

In an embodiment, the skeleton is further provided with a connection table extending towards the inside of the mounting hole adjacent to the mounting hole, and one end of the centering support piece, which is far away from the conductive support, is connected with the connection table.

In one embodiment, the connecting table is formed by bending or stretching one side of the framework adjacent to the assembly hole;

And/or, the connecting table is an annular boss arranged around the assembly hole; or, the connecting tables comprise a plurality of connecting tables which are arranged at intervals along the periphery of the assembly hole; or, the connecting tables comprise two connecting tables which are respectively arranged corresponding to the long axis direction or the short axis direction of the magnetic circuit system;

and/or, the connection platform is including being first linking arm and the second linking arm that the contained angle set up, first linking arm keep away from the one end of second linking arm with the inner wall connection of pilot hole, the second linking arm orientation is kept away from the direction of skeleton extends, the centring disk is kept away from the one end of electrically conductive support with the second linking arm first linking arm reaches the skeleton is connected.

In an embodiment, the vibrating diaphragm includes a ring-folded portion, a fixing portion connected to an outer side of the ring-folded portion, and an inner ring portion connected to an inner side of the ring-folded portion, the inner ring portion forms the inner ring hole, and a periphery of the frame is connected to the inner ring portion and located between the voice coil and the inner ring portion;

and/or the framework is provided with a containing groove around the assembly hole, and the ball top limit is positioned in the containing groove;

and/or a step surface is formed on the periphery of the framework, one side, adjacent to the inner ring hole, of the vibrating diaphragm is supported and connected to the step surface, and the step surface is positioned between the voice coil and the vibrating diaphragm.

In an embodiment, a part of the central washer is concavely arranged towards a direction far away from the vibrating diaphragm assembly to form an avoidance area, one end of the avoidance area is communicated with the mounting hole, the other end of the avoidance area extends towards the periphery of the central washer, and the avoidance area is arranged corresponding to the lead wire of the voice coil and/or the centering support sheet;

And/or the center magnet is annularly arranged; or the plurality of the central magnets are formed by encircling the plurality of the central magnets in a ring shape to form the mounting holes;

And/or the central washer is annularly arranged; or the central washer comprises a plurality of central washers which are annularly enclosed to form the mounting holes;

and/or, a positioning boss is arranged on one side of the conductive support, which is away from the centering support piece, and is in positioning abutting joint with one side of the central magnet, which is away from the central washer.

In one embodiment, the magnetic yoke is provided with a positioning table adjacent to the mounting hole, and the positioning table is connected with the conductive bracket;

The positioning table is formed by bending one side, adjacent to the mounting hole, of the magnetic yoke; and/or the positioning table is an annular boss arranged around the mounting hole; or, the positioning tables comprise a plurality of positioning tables which are arranged at intervals along the periphery of the mounting hole; and/or the positioning table is positioned between the central magnetic part and the conductive bracket; and/or the positioning table comprises a first positioning part and a second positioning part which are arranged at an included angle, one end of the first positioning part, which is far away from the second positioning part, is connected with the magnetic yoke, the second positioning part extends towards the direction far away from the central magnetic part, the conductive bracket is provided with a limiting table, and the limiting table is in limiting connection with the second positioning part; and/or, the conductive support is also provided with an empty avoiding groove corresponding to the positioning table, and the positioning table is accommodated in the empty avoiding groove.

In an embodiment, the sound generating device further comprises a connecting bracket arranged in the mounting hole, the connecting bracket is provided with a fixing cavity, and the conductive bracket is arranged in the fixing cavity.

In an embodiment, a supporting groove is formed around the mounting hole on one side of the magnetic conductive yoke, which is opposite to the central magnetic part, the connecting bracket comprises a main body part and a supporting table surrounding the main body part, the main body part is provided with the fixing cavity, the main body part is penetrated through the mounting hole, and the supporting table is accommodated and limited in the supporting groove;

and/or the connecting bracket is also provided with a avoidance gap communicated with the fixed cavity, and the avoidance gap is used for avoiding the wiring;

and/or the inner wall of the fixing cavity is provided with a positioning protrusion and/or a positioning groove, the periphery of the conductive bracket is provided with a limiting protrusion, the conductive bracket is arranged in the fixing cavity, and the limiting protrusion is matched with the positioning protrusion and/or the positioning groove in a positioning way;

and/or, the connecting support is a metal stamping part.

In an embodiment, a pressing groove is further formed in one side, facing away from the central magnetic portion, of the magnetic conducting yoke, one end of the pressing groove is communicated with the mounting hole, the other end of the pressing groove extends towards the periphery of the magnetic conducting yoke, and the pressing groove is used for avoiding wiring.

In one embodiment, the pressing groove comprises a plurality of pressing grooves;

The pressing grooves are arranged at intervals; and/or the plurality of pressing grooves are symmetrically arranged by the mounting holes; and/or the plurality of pressing grooves are radially arranged with the mounting hole as the center.

In an embodiment, the conductive bracket is provided with a first welding surface and a second welding surface which are arranged in a deviating manner, the first welding surface faces the assembly hole and is connected with the centering support, and the second welding surface is used for being connected with an external power supply.

In an embodiment, a groove is formed on one side, facing away from the first welding surface, of the conductive bracket, and the bottom wall of the groove forms the second welding surface;

And/or, the conductive bracket comprises a main body piece and a bonding pad piece, wherein the bonding pad piece is embedded in the main body piece, the bonding pad piece comprises a first bonding pad part and a second bonding pad part which are connected, at least part of the first bonding pad part is exposed on the first bonding surface, and at least part of the second bonding pad part is exposed on the second bonding surface;

And/or the first welding surface is provided with two first welding pads which are arranged at intervals along the long axis direction or the short axis direction of the magnetic circuit system;

And/or the second welding surface is provided with two second welding pads, and the two second welding pads are arranged at intervals along the long axis direction or the short axis direction of the magnetic circuit system.

In an embodiment, the centering support piece includes a plurality of centering support pieces, one ends of the centering support pieces are respectively connected with the conductive support, and the other ends of the centering support pieces are respectively connected with the framework and are respectively electrically connected with the leads of the voice coil;

Each centering support piece comprises a first connecting portion, an elastic arm and a second connecting portion which are sequentially connected, wherein the first connecting portion is connected with the framework and is electrically connected with a lead wire of the voice coil, and the second connecting portion is connected with the conductive support.

In an embodiment, the plurality of centering support pieces are symmetrically distributed along the long axis direction or/and the short axis direction of the magnetic circuit system;

and/or the first connecting part and the second connecting part are positioned on different planes;

and/or the first connecting part, the elastic arm and the second connecting part are of an integrated structure;

and/or the elastic arm is provided with at least one bending;

and/or a vibration space avoiding the centering support piece is formed between the conductive support and the inner wall of the mounting hole.

The invention also provides a sounding module, which comprises:

A module housing;

the sound generating device is arranged in the module shell; and

And one end of the flexible circuit board is electrically connected with the conductive bracket of the sound generating device, and the other end of the flexible circuit board is used for being connected with an external power supply.

In one embodiment, a positioning lug is arranged at one end of the flexible circuit board adjacent to the conductive bracket, and a positioning side wall matched with the positioning lug in a positioning way is formed on the conductive bracket;

And/or, the conductive bracket is also provided with a yielding notch corresponding to the flexible circuit board.

The invention also provides electronic equipment, which comprises the sounding device;

Or, the electronic equipment comprises the sounding module.

According to the sound production device, the magnetic circuit system is arranged as the magnetic guide yoke, the central magnetic part and the side magnetic part which are arranged on the magnetic guide yoke, the side magnetic part is arranged on the outer side of the central magnetic part and surrounds the central magnetic part to form a magnetic gap, the vibration system is arranged as the vibrating diaphragm assembly, the voice coil and the centering support piece which are opposite to the magnetic circuit system, one end of the voice coil is connected with the vibrating diaphragm assembly, the other end of the voice coil is suspended in the magnetic gap, and thus current is introduced into the voice coil, and the voice coil converts electric energy into mechanical energy in the magnetic gap formed by the magnetic circuit system so as to drive the voice coil to drive the vibrating diaphragm assembly to vibrate, so that sound production is realized; meanwhile, the magnetic circuit system is provided with the mounting hole penetrating the magnetic guide yoke and the central magnetic part, and the conductive bracket is arranged in the mounting hole, so that one end of the centering support piece is electrically connected with the bonding pad of the conductive bracket, the other end of the centering support piece is connected with the vibrating diaphragm assembly and is electrically connected with the lead wire of the voice coil, the centering support piece can be used for realizing the mounting and fixing of the centering support piece, the voice coil can be connected and conducted with an external circuit through the centering support piece and the conductive bracket, meanwhile, the centering support piece can also effectively avoid the swing or polarization of the voice coil, the acoustic performance of the sounding device is improved, the weight reduction can be realized, the mounting and fixing of the conductive bracket can be realized through the mounting hole with the low magnetic field utilization rate of the central magnetic part in the magnetic circuit system, and the centering support piece is arranged in the mounting hole in the middle of the central magnetic part, so that the centering support piece cannot occupy the setting space of the side magnetic part, the magnetic field strength of the magnetic circuit system can be increased, the BL value can be further improved, and the acoustic performance of the sounding device can be improved; furthermore, the vibrating diaphragm assembly is arranged to be the vibrating diaphragm, the framework and the ball top, and the framework is provided with the assembly holes corresponding to the conductive brackets, so that the assembly of the centering support piece can be conveniently realized by using the assembly holes, the assembly efficiency is improved, the ball top cover is arranged in the assembly holes, the sealing can be effectively realized, the sound pressure is prevented from being reduced, the sound production effect is reduced, and meanwhile, sundries are prevented from entering the sound production device through the assembly holes to influence the performance of the sound production device; in addition, because the magnetic leakage of the central position of the central magnetic part is serious, the mounting hole is formed by removing at least a part of the central magnet of the central position of the central magnetic part, so that the magnetic leakage of the central magnet can be reduced, and when the sounding device is assembled in the electronic equipment, the influence of the magnetic leakage of the central magnet in the sounding device on the performance of the electronic equipment can be reduced, and the requirement of the electronic equipment on the magnetic leakage can be met. And through the position setting auxiliary magnet between the central magnet in the mounting hole and the electrically conductive support, along vibration system's vibration direction, the interval between auxiliary magnet and the vibrating diaphragm subassembly is greater than the interval between central magnet and the vibrating diaphragm subassembly to can increase the magnet volume of central magnetic part when satisfying the installation and the vibration demand of centering support piece, improve magnetic field strength of magnetic circuit, further promote acoustic performance.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a sound generating apparatus according to an embodiment of the present invention;

FIG. 2 is a schematic diagram illustrating a sound generating apparatus according to another embodiment of the present invention;

FIG. 3 is an exploded view of a sound generating apparatus according to an embodiment of the present invention;

FIG. 4 is a schematic cross-sectional view of a sound generating apparatus along a long axis direction according to an embodiment of the present invention;

FIG. 5 is a schematic cross-sectional view of a sound generating apparatus along a short axis direction according to an embodiment of the present invention;

FIG. 6 is a schematic diagram of a sound generating apparatus according to another embodiment of the present invention;

FIG. 7 is an exploded view of a sound generating apparatus according to another embodiment of the present invention;

FIG. 8 is a schematic cross-sectional view of a sound generating apparatus according to another embodiment of the present invention;

FIG. 9 is a schematic diagram of the connection of the frame, the centering support and the conductive support according to an embodiment of the present invention;

FIG. 10 is a schematic view of a connection structure of a skeleton, a centering support and a conductive support according to another embodiment of the present invention;

FIG. 11 is a schematic diagram showing the structure of the connection of the frame, the voice coil, the centering support and the conductive support according to an embodiment of the present invention;

FIG. 12 is a schematic view of a skeleton according to an embodiment of the present invention;

FIG. 13 is a schematic view of a skeleton in another embodiment of the present invention;

FIG. 14 is a schematic view of a magnetic yoke according to an embodiment of the present invention;

FIG. 15 is a schematic view of a magnetic yoke according to another embodiment of the present invention;

FIG. 16 is a schematic view showing a structure of a magnetic yoke according to another embodiment of the present invention;

FIG. 17 is a schematic view of a centering support according to an embodiment of the present invention;

FIG. 18 is a schematic view of a conductive bracket according to an embodiment of the present invention;

FIG. 19 is a schematic view showing a structure of a conductive bracket connected to a connection bracket according to an embodiment of the present invention;

FIG. 20 is a schematic view showing a structure of a conductive bracket and a connection bracket according to another embodiment of the present invention;

FIG. 21 is a schematic view of a connecting bracket according to an embodiment of the present invention;

FIG. 22 is a schematic diagram of a sound module according to an embodiment of the present invention;

FIG. 23 is a schematic diagram of a sound module according to another embodiment of the present invention;

FIG. 24 is a schematic cross-sectional view of a sound module according to an embodiment of the invention;

fig. 25 is a schematic structural diagram of a sound module according to another embodiment of the invention.

Reference numerals illustrate:

Reference numerals	Name of the name	Reference numerals	Name of the name	Reference numerals	Name of the name
						100	Sounding device	31	Main body piece	412	Skeleton frame
1	Outer casing	311	Limiting table	4121	Assembly hole
						11	Positioning column	312	Empty-avoiding groove	4122	Accommodating groove
2	Magnetic circuit system	313	Spacing bump	4123	Step surface
						21	Magnetic conductive yoke	314	Mounting groove	4124	Connecting table
211	Positioning table	315	Positioning boss	4125	First connecting arm
						2111	First positioning part	316	First welding surface	4126	Second connecting arm
2112	Second positioning part	317	Second welding surface	413	Ball top
						212	Pressing groove	318	Groove	42	Voice coil
213	Avoidance gap	319	Yield gap	43	Centering support piece
						214	Support groove	32	Welding disk	431	First connecting part
215	Positioning notch	321	First bonding pad part	432	Elastic arm
						22	Center magnetic part	322	Second bonding pad part	433	Second connecting part
221	Center magnet	323	First bonding pad	5	Connecting support
						222	Central washer	324	Second bonding pad	51	Main body part
223	Avoidance zone	33	Vibration space	511	Fixing cavity
						224	Auxiliary magnet	4	Vibration system	52	Supporting table
23	Side magnetic part	41	Vibrating diaphragm assembly	53	Gap for avoiding position
						231	Side magnet	411	Vibrating diaphragm	54	Positioning groove
232	Bian Huasi A	4111	Folded ring part	600	Flexible circuit board
						24	Magnetic gap	4112	Fixing part	610	Positioning ear
25	Mounting hole	4113	Inner ring part	700	Sounding module
						3	Conductive bracket	4114	Inner ring hole

The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present invention are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.

Meanwhile, the meaning of "and/or" and/or "appearing throughout the text is to include three schemes, taking" a and/or B "as an example, including a scheme, or B scheme, or a scheme that a and B satisfy simultaneously.

Furthermore, descriptions such as those referred to as "first," "second," and the like, are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying an order of magnitude of the indicated technical features in the present disclosure. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.

The invention provides a sound generating device 100. It is understood that the sound generating apparatus 100 is applied to an electronic device, which may be a smart watch, a mobile phone, a sound device, a computer, an earphone, a television, or the like, and is not limited herein.

Referring to fig. 1 to 21, 23 and 25, in the embodiment of the present invention, the sound generating device 100 includes a magnetic circuit 2, a conductive bracket 3 and a vibration system 4, the magnetic circuit 2 includes a magnetic yoke 21, a central magnetic portion 22 and a side magnetic portion 23 disposed on the magnetic yoke 21, the side magnetic portion 23 is located on the outer side of the central magnetic portion 22 and encloses with the central magnetic portion 22 to form a magnetic gap 24, the central magnetic portion 22 includes a central magnet 221, a central washer 222 and an auxiliary magnet 224, the central magnet 221 is sandwiched between the central washer 222 and the magnetic yoke 21, the magnetic circuit 2 has a mounting hole 25 penetrating the magnetic yoke 21, the central magnet 221 and the central washer 222 in sequence, the auxiliary magnet 224 is disposed in the mounting hole 25, the conductive bracket 3 is disposed in the mounting hole 25, the auxiliary magnet 224 is disposed between the central magnet 221 and the conductive bracket 3, the vibration system 4 includes a diaphragm assembly 41, 42 and a support piece 43, the diaphragm assembly 41 includes a 411, a skeleton 412 and a dome 413, the center of the diaphragm 411 is disposed in the center of the magnetic portion, the skeleton 412 is disposed in the hole 4114, the skeleton 412 is disposed in the hole 412, and is connected to the other end of the conductive bracket 412 and is connected to the other end of the voice coil 3, which is connected to the other end of the conductive bracket 21 and the voice coil 3, which is connected to the other end of the conductive bracket, which is connected to the conductive bracket 43.

In this embodiment, the sound generating device 100 may be a sound generating unit of a speaker, and the speaker may be a micro speaker. The magnetic circuit system 2 and the vibration system 4 of the sound generating device 100 are disposed opposite to each other. Alternatively, the magnetic circuit 2 is square. For example, the magnetic circuit system 2 may include a center magnetic portion 22 and side magnetic portions 23 each having a square structure. The vibration system 4 is also square in shape. It should be understood that the periphery of the diaphragm assembly 41 of the vibration system 4 may be connected to the magnetic circuit system 2, or the magnetic circuit system 2 and the vibration system 4 may be assembled on the module housing respectively, which is not limited herein.

In order to better assemble the magnetic circuit 2 and the vibration system 4 of the sound generating device 100, in an embodiment, as shown in fig. 1 to 8 and 22 to 25, the sound generating device 100 further includes a housing 1, the magnetic circuit 2 is connected to one end of the housing 1, the vibration system 4 is connected to the other end of the housing 1 and is disposed opposite to the magnetic circuit 2, that is, the periphery of the diaphragm assembly 41 of the vibration system 4 is connected to the other end of the housing 1 and is disposed opposite to the magnetic circuit 2.

In the present embodiment, the housing 1 is used for mounting, fixing and supporting the components of the magnetic circuit system 2 and the vibration system 4, that is, the housing 1 provides a mounting base for the components of the magnetic circuit system 2 and the vibration system 4. It will be appreciated that the housing 1 may be a unitary structure or may be formed by a plurality of separate structures, which are not limited herein. The casing 1 in this embodiment may be a square frame or a frame structure, that is, the casing 1 has a cavity with two open ends, and the magnetic circuit system 2 and the vibration system 4 are respectively connected to two sides of the casing 1 and are disposed oppositely, so that the magnetic circuit system 2, the casing 1, and the diaphragm assembly 41 of the vibration system 4 enclose to form a vibration cavity.

It is understood that the sound generating apparatus 100 is applied to an electronic device, that is, the sound generating apparatus 100 may be mounted to the electronic device through the housing 1. It should be noted that, the housing 1 of the sound generating apparatus 100 may be a housing or a box structure independent of the electronic device, and at this time, the magnetic circuit system 2, the vibration system 4, and other components of the sound generating apparatus 100 are integrated into a whole structure by using the housing 1, so as to facilitate disassembly and assembly. Of course, the housing 1 of the sound generating apparatus 100 may be integrally formed with the housing or the case of the electronic device, so as to effectively improve the structural strength and sealing performance.

In the present embodiment, the housing 1 is used to house and fix the structures such as the vibration system 4 and the magnetic circuit system 2, so that the sound generating apparatus 100 can be applied as a separate component to an electronic device or a sound generating module, which is not limited herein. Of course, in other embodiments, the sound generating device 100 may be a module structure, and in this case, the structures such as the vibration system 4 and the magnetic circuit system 2 of the sound generating unit are respectively mounted as a plurality of independent components on the housing 1 of the module structure, which is not limited herein.

It can be understood that by providing the magnetic circuit 2 as the magnetic yoke 21 and the center magnetic portion 22 and the side magnetic portions 23 provided to the magnetic yoke 21, the magnetic circuit 2 can be connected to the housing 1 through the peripheral edge of the magnetic yoke 21; alternatively, the magnetic circuit 2 may be connected to the housing 1 via the side magnetic portion 23, which is not limited herein. In this embodiment, the side magnetic portion 23 is located outside the central magnetic portion 22 and encloses the central magnetic portion 22 to form the magnetic gap 24, so that the diaphragm assembly 41 of the vibration system 4 is connected to one end of the housing 1 away from the magnetic yoke 21 and opposite to and spaced apart from the magnetic circuit 2, so that one end of the voice coil 42 is connected to the diaphragm assembly 41, and the other end of the voice coil 42 is suspended in the magnetic gap 24.

In order to realize the electrical connection between the voice coil 42 and the external circuit, the sound generating device 100 in the related art generally adopts a centering support piece structure, two ends of the centering support piece 43 are respectively electrically connected with the lead wire of the voice coil 42 and the external circuit, and the centering support piece 43 is arranged at four corners of the sound generating device 100 or a short axis of the sound generating device 100, that is, an avoidance space is arranged at four corners or a short axis of the magnetic circuit 2 to provide an installation space or an installation position for the centering support piece 43, so that the centering support piece occupies a part of the space of the magnetic circuit 2, the side magnet of the magnetic circuit 2 cannot be enlarged due to the limited size, the magnetic field strength of the magnetic circuit 2 is not high, and the BL value is reduced, thereby affecting the acoustic performance of the sound generating device 100.

In this embodiment, the mounting hole 25 penetrating the magnetic yoke 21 and the central magnetic portion 22 is provided in the magnetic circuit 2, and the conductive bracket 3 is provided in the mounting hole 25, so that one end of the centering support piece 43 is electrically connected with the pad of the conductive bracket 3, and the other end of the centering support piece 43 is connected with the diaphragm assembly 41 and electrically connected with the lead wire of the voice coil 42, so that external current is introduced into the voice coil 42 through the conductive bracket 3 and the centering support piece 43, and the centering support piece 43 is utilized to perform centering on the vibration of the voice coil 42, so as to avoid the swing or polarization of the voice coil 42 in the vibration process, thereby improving the sound producing effect and the acoustic performance of the sound producing device 100.

It can be understood that the magnetic field utilization rate of the central position of the central magnetic portion 22 of the magnetic circuit system 2 is low, by providing the mounting hole 25 on the magnetic circuit system 2, for example, the mounting hole 25 can be provided on the central position of the magnetic circuit system 2 where the magnetic field utilization rate of the central magnetic portion 22 is not high, on the premise of having small influence on the magnetic field intensity of the magnetic circuit system 2, the weight reduction and the mounting fixation of the conductive bracket 3 can be realized, and furthermore, since the centering support piece 43 is provided in the mounting hole 25 in the middle of the central magnetic portion 22, the centering support piece 43 does not occupy the installation space of the side magnetic portion 23, so that the installation volume of the side magnetic portion 23 can be increased, the magnetic field intensity of the magnetic circuit system 2 can be improved, and further the BL value can be improved, and the acoustic performance of the sounding device 100 can be improved. In addition, since the magnetic leakage of the central position of the central magnetic portion 22 is serious, the mounting hole 25 needs to be formed by removing at least a part of the central magnet 221 of the central position of the central magnetic portion 22, so that the magnetic leakage amount of the central magnet 221 can be reduced, and when the sound generating apparatus 100 is assembled in an electronic device, the influence of the magnetic leakage of the central magnet 221 in the sound generating apparatus 100 on the performance of the electronic device can be reduced, thereby meeting the requirement of the electronic device on the magnetic leakage amount.

Alternatively, the mounting hole 25 may be a polygonal hole or a special-shaped hole, such as a circular hole, an oval hole, a square hole, a triangular hole, etc., which is specifically selected according to actual needs, and is not limited herein.

In one embodiment, the central magnetic portion 22 includes a central magnet 221 and a central washer 222 that are stacked, the central magnet 221 is sandwiched between the central washer 222 and the magnetic yoke 21, and the mounting hole 25 penetrates the magnetic yoke 21, the central magnet 221 and the central washer 222 in order.

In the present embodiment, as shown in fig. 3 to 5, 7, 8, 23 and 25, by providing the central magnetic portion 22 as the central magnet 221 and the central washer 222 that are stacked, so that the central magnet 221 is sandwiched between the central washer 222 and the magnetic yoke 21, and passing the mounting hole 25 through the magnetic yoke 21, the central magnet 221 and the central washer 222 in order, the weight of the central magnetic portion 22 can be effectively reduced by using the mounting hole 25, and since the contribution of the magnet in the middle position of the central magnetic portion 22 to the magnetic field strength is small, the mounting fixation of the conductive bracket 3 can be realized with less influence on the magnetic field strength.

It will be appreciated that the central washer 222 forms a first through hole, the central magnet 221 forms a second through hole, the magnetic yoke 21 forms a third through hole, and the first through hole, the second through hole and the third through hole are correspondingly communicated in sequence to form the mounting hole 25.

In one embodiment, the central magnetic portion 22 further includes an auxiliary magnet 224, where the auxiliary magnet 224 is disposed in the mounting hole 25 and located between the central magnet 221 and the conductive bracket 3, and at least a portion of the auxiliary magnet 224 is disposed corresponding to the centering pad 43.

In this embodiment, as shown in fig. 3,4, 23 and 25, by providing the auxiliary magnet 224, the auxiliary magnet 224 is disposed on the magnetic yoke 21 and between the central magnet 221 and the conductive bracket 3, so as to effectively increase the magnet volume of the central magnetic portion 22, and to improve the magnetic field strength of the magnetic field to a certain extent, so that the auxiliary magnet 224 fully utilizes the space in the mounting hole 25 of the central magnetic portion 22, and improves the acoustic performance.

It can be appreciated that the arrangement of the auxiliary magnet 224 can increase the magnet volume of the central magnetic portion 22, improve the acoustic performance, and at least a part of the auxiliary magnet 224 is arranged corresponding to the centering support 43, so that the height difference between the auxiliary magnet 224 and the central washer 222 of the central magnetic portion 22 is utilized to provide the avoiding space or vibration space for the centering support 43. Optionally, the distance between the auxiliary magnet 224 and the diaphragm assembly 41 is greater than the distance between the center magnet 221 and the diaphragm assembly 41. So that the vibration space of the centering support 43 can be effectively ensured.

In an embodiment, the diaphragm assembly 41 includes a diaphragm 411, a frame 412 and a dome 413, the diaphragm 411 is disposed opposite to the magnetic circuit 2, an inner ring hole 4114 is disposed in the center of the diaphragm 411, the frame 412 is disposed in the inner ring hole 4114 and connected to the diaphragm 411, the centering support 43 is connected to the frame 412, the frame 412 is provided with an assembly hole 4121 corresponding to the conductive bracket 3, and the dome 413 is disposed in the assembly hole 4121; wherein, the voice coil 42 is connected with the diaphragm 411 or the frame 412.

In this embodiment, as shown in fig. 1,3 to 5 and 7 to 13, by arranging the diaphragm assembly 41 into a three-part structure of the diaphragm 411, the frame 412 and the dome 413, the periphery of the diaphragm 411 is connected with the housing 1, an inner ring hole 4114 is formed in the center of the diaphragm, and the frame 412 is arranged at the inner ring hole 4114, so that the connection and fixation of the voice coil 42 and the centering support piece 43 are realized by using the frame 412, and the mounting stability is improved. Meanwhile, the assembly holes 4121 are formed in the framework 412 corresponding to the conductive bracket 3, so that the centering support piece 43 can be conveniently installed and fixed through the assembly holes 4121, the centering support piece 43 is connected and fixed with the conductive bracket 3 and the framework 412, and the installation convenience is improved.

It will be appreciated that in order to seal the mounting hole 4121, by providing the dome 413 at the mounting hole 4121 such that the dome 413 covers the mounting hole 4121, both the mounting hole 4121 can be sealed by the dome 413 and the vibration performance of the diaphragm assembly 41 can be ensured.

According to the sound generating device 100, the magnetic circuit system 2 is arranged as the magnetic guide yoke 21, the central magnetic part 22 and the side magnetic part 23 which are arranged on the magnetic guide yoke 21, the side magnetic part 23 is arranged on the outer side of the central magnetic part 22 and surrounds the central magnetic part 22 to form the magnetic gap 24, the vibration system 4 is arranged as the vibrating diaphragm assembly 41 opposite to the magnetic circuit system 2, the voice coil 42 and the centering support piece 43, one end of the voice coil 42 is connected with the vibrating diaphragm assembly 41, the other end of the voice coil 42 is suspended in the magnetic gap 24, and thus, current is introduced into the voice coil 42, so that the voice coil 42 converts electric energy into mechanical energy in the magnetic gap 24 formed by the magnetic circuit system 2 to drive the voice coil 42 to drive the vibrating diaphragm assembly 41 to vibrate, and sound generation is realized.

Meanwhile, the mounting hole 25 penetrating through the magnetic yoke 21 and the central magnetic part 22 is formed in the magnetic circuit system 2, and the conductive support 3 is arranged in the mounting hole 25, so that one end of the centering support piece 43 is electrically connected with a bonding pad of the conductive support 3, the other end of the centering support piece 43 is connected with the vibrating diaphragm assembly 41 and is electrically connected with a lead wire of the voice coil 42, the centering support piece 43 can be mounted and fixed by the conductive support 3, the voice coil 42 can be connected and conducted with an external circuit through the centering support piece 43 and the conductive support 3, meanwhile, the centering support piece 43 can effectively avoid swinging or polarization of the voice coil 42, the acoustic performance of the sounding device 100 is improved, and the mounting hole 25 is arranged at the central position of the magnetic circuit system 2, which is low in magnetic field utilization rate, of the central magnetic part 22 can realize weight reduction, and the conductive support 3 can be mounted and fixed. In addition, since the magnetic leakage of the central position of the central magnetic portion 22 is serious, the mounting hole 25 needs to be formed by removing at least a part of the central magnet 221 of the central position of the central magnetic portion 22, so that the magnetic leakage amount of the central magnet 221 can be reduced, and when the sound generating apparatus 100 is assembled in an electronic device, the influence of the magnetic leakage of the central magnet 221 in the sound generating apparatus 100 on the performance of the electronic device can be reduced, thereby meeting the requirement of the electronic device on the magnetic leakage amount.

Further, by arranging the diaphragm assembly 41 as the diaphragm 411, the skeleton 412 and the dome 413, and arranging the assembly holes 4121 in the skeleton 412 corresponding to the conductive bracket 3, the assembly of the centering support 43 can be conveniently realized by using the assembly holes 4121, the assembly efficiency is improved, and the dome 413 is covered on the assembly holes 4121, so that the sealing can be effectively realized, the sound pressure is prevented from being reduced, the sound production effect is reduced, and meanwhile, sundries are prevented from entering the sound production device 100 through the assembly holes 4121, and the performance of the sound production device 100 is influenced; and through setting up auxiliary magnet 224 in the position between the central magnet 221 in mounting hole 25 and electrically conductive support 3, along the vibration direction of vibration system 4, the interval between auxiliary magnet 224 and the vibrating diaphragm subassembly 41 is greater than the interval between central magnet 221 and the vibrating diaphragm subassembly 41 to can increase the magnet volume of central magnetic part 22 when satisfying the installation and the vibration demand of centering piece 43, improve the magnetic field intensity of magnetic circuit 2, further promote acoustic performance.

Alternatively, the central magnetic portion 22 may be arranged in a ring-shaped structure such that the center of the central magnetic portion 22 forms a through-hole structure. Of course, in other embodiments, the central magnetic portion 22 includes a plurality of bar structures that are enclosed to form a ring structure, such that the plurality of bar structures are enclosed to form a via structure, which is not limited herein.

It will be appreciated that the center magnet 221 may alternatively be arranged in a ring shape such that the center of the center magnet 221 forms a second through hole. Of course, in other embodiments, the center magnet 221 includes a plurality of center magnets 221 that form a second through hole in an annular enclosure. The central washer 222 is disposed in a ring shape such that a first through hole is formed at the center of the central washer 222. Of course, in other embodiments, the central washer 222 includes a plurality of central washers 222, and the plurality of central washers 222 form the first through hole in an annular enclosure, which is not limited herein.

Alternatively, the auxiliary magnet 224 is integrally formed with the center magnet 221. Of course, in other embodiments, the auxiliary magnet 224 is adhesively connected to the center magnet 221, which is not limited herein.

In the present embodiment, the auxiliary magnet 224 is disposed in a ring shape, that is, the ring-shaped auxiliary magnet 224 is disposed around the conductive bracket 3, and the center magnet 221 of the center magnetic portion 22 is connected to the auxiliary magnet 224. Of course, in other embodiments, the auxiliary magnets 224 include a plurality of auxiliary magnets 224 spaced apart from each other and disposed around the conductive support 3. Optionally, the auxiliary magnets 224 include two or four, etc., without limitation.

In one embodiment, the inner wall of the mounting hole 25, the auxiliary magnet 224 and the conductive bracket 3 enclose a vibration space 33 that is formed to avoid the centering pad 43. It will be appreciated that this ensures that the centering support 43 has sufficient vibration space to vibrate with the voice coil 42, avoiding interference or impact on other components.

In one embodiment, the side of the central magnet 221 and/or the conductive support 3 facing the auxiliary magnet 224 is provided with a mounting groove 314, and at least part of the auxiliary magnet 224 is limited in the mounting groove 314.

In the present embodiment, as shown in fig. 3, 4, 11 and 18, the mounting groove 314 is provided on the central magnet 221 and/or the conductive bracket 3, so that the auxiliary magnet 224 is mounted and fixed by the mounting groove 314, thereby realizing the mounting, fixing and limiting actions on the auxiliary magnet 224 and improving the mounting stability.

It will be appreciated that the mounting slot 314 may be provided on the side of the central magnet 221 facing the auxiliary magnet 224; alternatively, the mounting groove 314 may be provided on a side of the conductive bracket 3 facing the auxiliary magnet 224; alternatively, the side of the center magnet 221 facing the auxiliary magnet 224 and the side of the conductive bracket 3 facing the auxiliary magnet 224 are each provided with the mounting groove 314.

In an embodiment, a positioning boss 315 is disposed on a side of the conductive support 3 facing away from the centering support 43, and the positioning boss 315 is in positioning abutment with a side of the central magnet 221 facing away from the central washer 222.

In this embodiment, as shown in fig. 3, 5, 11 and 18, a positioning boss 315 is disposed at the periphery of the conductive bracket 3, so that when the conductive bracket 3 is installed in the installation hole 25, the positioning boss 315 is used to be in positioning contact with one side of the central magnet 221, which is opposite to the central washer 222, so as to realize spacing installation on the conductive bracket 3, and improve the assembly firmness of the conductive bracket 3.

In the embodiment shown in fig. 22 and 23, the yoke 21 is provided with a third through hole, through which the conductive bracket 3 extends into the sound generating device 100. The conductive bracket 3 has a first side wall and a second side wall which are oppositely arranged, one of the first side wall and the second side wall is provided with a positioning boss 315, the positioning boss 315 is in positioning abutting joint with one side of the central magnet 221, which is opposite to the central washer 222, and the other one of the first side wall and the second side wall is in abutting joint or clearance fit with the inner wall of the third through hole.

In one embodiment, the side magnetic portion 23 is optionally disposed in a ring shape, where the ring-shaped side magnetic portion 23 is located outside the central magnetic portion 22 and forms a magnetic gap 24 with the central magnetic portion 22 by being spaced apart. In the present embodiment, the side magnet portion 23 includes a side magnet 231 and Bian Huasi 232,232 provided to the side magnet 231, and the side magnet 231 is sandwiched between the magnetic yokes 21 and Bian Huasi 232,232. Optionally, the side magnets 231 and Bian Huasi, 232 each form a closed loop structure.

Of course, in other embodiments, the side magnetic portion 23 includes a plurality of side magnetic portions 23, and the plurality of side magnetic portions 23 are disposed around the outside of the central magnetic portion 22 and are surrounded by the central magnetic portion 22 to form the magnetic gap 24. Optionally, the side magnets 231 and Bian Huasi, 232 are all plural and are disposed in a one-to-one correspondence, and adjacent side magnets 231 are connected end to form a closed ring structure.

It should be noted that, in the present invention, the centering support 43 is disposed in the mounting hole 25 in the middle of the central magnetic portion 22, and compared with the conventional scheme that the centering support 43 is disposed at four corners of the magnetic circuit 2, the centering support 43 in the present invention does not occupy the space for disposing the side magnetic portion 23, and the receiving space of the centering support 43 is not required between two adjacent side magnets 231, so that the side magnets 231 can be disposed in a closed ring structure, thereby increasing the disposition volume of the side magnets 231, and improving the magnetic field strength of the magnetic circuit 2, and further improving the BL value.

In an embodiment, the diaphragm assembly 41 includes a diaphragm 411 and a frame 412, the diaphragm 411 is opposite to the magnetic circuit system 2, an inner ring hole 4114 is provided in the center of the diaphragm 411, the frame 412 is provided in the inner ring hole 4114 and connected to the diaphragm 411, and the centering support piece 43 is connected to the frame 412; wherein, the voice coil 42 is connected with the diaphragm 411 or the frame 412.

Optionally, the diaphragm assembly 41 further includes a dome 413, and the skeleton 412 is provided with a receiving groove 4122, where the dome 413 is limited in the receiving groove 4122.

In one embodiment, the frame 412 is further provided with a connection stage 4124 extending into the mounting hole 25 adjacent to the mounting hole 4121, and an end of the centering bracket 43 remote from the conductive bracket 3 is connected to the connection stage 4124.

In this embodiment, as shown in fig. 3 to 5 and fig. 7 to 13, by providing the connection table 4124 on the frame 412 such that the connection table 4124 extends toward the inside of the mounting hole 25, the connection table 4124 can be used to further fix the centering support 43, and the connection stability of the centering support 43 is improved. It will be appreciated that, since the diaphragm assembly 41 and the central magnetic portion 22 have a gap therebetween to define the vibration space 33, the top surface of the centering support 43 does not exceed the top surface of the central magnetic portion 22, and thus, there is a height difference between the centering support 43 and the diaphragm assembly 41 along the vibration direction of the vibration system 4, by providing the connection table 4124 extending toward the inside of the mounting hole 25, the connection table 4124 can extend to the plane where the centering support 43 is located and be connected with the centering support 43, thereby playing a role of convenient assembly.

Of course, it will be appreciated that the end of the centering support 43 away from the conductive support 3 may also extend in a direction toward the diaphragm assembly 41, thereby also providing an effect of facilitating assembly of the centering support 43 with the diaphragm assembly 41.

Alternatively, the attachment table 4124 is formed by bending or stretching the side of the backbone 412 adjacent to the mounting hole 4121. For example, the connection stage 4124 is formed as a vertically extending structure extending from one side wall of the frame 412 adjacent to the fitting hole 4121 in the vibration direction (vertical direction) of the vibration system 4, and this arrangement can effectively improve the structural strength and the processing convenience of the connection stage 4124. Of course, in other embodiments, the connecting table 4124 and the framework 412 may be configured separately and connected as a single structure by welding or bonding, which is not limited herein.

Alternatively, the connection stage 4124 is an annular boss, that is, the connection stage 4124 is an annular boss disposed around the fitting hole 4121. It will be appreciated that the connection stage 4124 provided in a ring shape can facilitate connection and fixation of the plurality of centering support pieces 43, and improve installation convenience. Of course, in other embodiments, the connection stage 4124 includes a plurality of connection stages 4124 spaced along the periphery of the mounting hole 4121. Alternatively, the connection stages 4124 include two connection stages 4124, and the two connection stages 4124 are respectively disposed corresponding to the long axis direction or the short axis direction of the magnetic circuit system 2.

In an embodiment, the connection table 4124 includes a first connection arm 4125 and a second connection arm 4126 disposed at an angle, an end of the first connection arm 4125 away from the second connection arm 4126 is connected to an inner wall of the assembly hole 4121, the second connection arm 4126 extends away from the frame 412, and an end of the centering support 43 away from the conductive bracket 3 is connected to the second connection arm 4126, the first connection arm 4125 and the frame 412.

In the present embodiment, as shown in fig. 12 and 13, by arranging the connection table 4124 to form the first connection arm 4125 and the second connection arm 4126 disposed at an angle, that is, the first connection arm 4125 and the second connection arm 4126 are disposed in an L-shape, the contact area with the centering support 43 can be further increased, and the mounting stability can be improved.

Alternatively, the shape and structure of the first connection portion 431 of the centering support 43 is similar to the shape and structure of the connection table 4124, so that the second connection arm 4126 may be used to position the centering support 43, or the first connection arm 4125 and the second connection arm 4126 may be used to connect and fix the first connection portion 431 of the L shape, so as to guide the first connection portion 431 to the side of the frame 412 facing away from the dome 413, which is convenient for connecting and fixing the lead wire of the voice coil 42 with the first connection portion 431, which is not limited herein.

In an embodiment, as shown in fig. 13, the connecting table 4124 further includes two arc-shaped side walls, which are respectively disposed on two sides of the first connecting arm 4125 and connected to the second connecting arm 4126 and the framework 412, so that the first connecting arm 4125, the second connecting arm 4126 and the two arc-shaped side walls enclose an arc-shaped groove.

It will be appreciated that when the connecting stage 4124 is formed by stretching, the connecting stage 4124 may be formed in a half-groove configuration such that both sides of the first connecting arm 4125 and the second connecting arm 4126 of the connecting stage 4124 have arcuate side walls. Optionally, the first connecting arm 4125 is in a smooth transition with the inner wall of the assembly hole 4121. Optionally, the first connecting arm 4125 and the second connecting arm 4126 are in a smooth transition connection.

The specific structural design of the connection table 4124 is not limited to the above, as long as the mounting and fixing of the centering support 43 can be achieved, and the present invention is not limited thereto.

In an embodiment, as shown in fig. 1, 3-5, 7 and 8, the diaphragm 411 includes a ring portion 4111, a fixing portion 4112 connected to the outer side of the ring portion 4111, and an inner ring portion 4113 connected to the inner side of the ring portion 4111, the inner ring portion 4113 forms an inner ring hole 4114, and the periphery of the frame 412 is connected to the inner ring portion 4113 and is located between the voice coil 42 and the inner ring portion 4113.

It can be appreciated that the fixing portion 4112, the ring portion 4111 and the inner ring portion 4113 of the diaphragm 411 are sequentially connected into an integrally formed structure, so as to ensure the vibration performance and structural strength of the diaphragm 411.

In this embodiment, as shown in fig. 3, 7, 9, 10 and 12, the skeleton 412 is provided with a receiving groove 4122 around the fitting hole 4121, and the dome 413 is limited in the receiving groove 4122. It will be appreciated that by providing the accommodating groove 4122 on the side of the frame 412 facing away from the voice coil 42, such that the accommodating groove 4122 is disposed around the assembly hole 4121, the accommodating groove 4122 can be conveniently used to mount and accommodate the dome 413, so as to ensure that the upper surface of the dome 413 is flush with the upper surface of the frame 412, thereby reducing the height of the sound generating apparatus 100 along the vibration direction of the vibration system 4, and ensuring the vibration performance of the entire diaphragm assembly 41.

Optionally, a step surface 4123 is formed on the periphery of the frame 412, and a side of the diaphragm 411 adjacent to the inner annular hole 4114 is supported and connected to the step surface 4123, where the step surface 4123 is located between the voice coil 42 and the diaphragm 411.

In the present embodiment, as shown in fig. 3, 7, 9, 10 and 12, by providing the step surface 4123 at the periphery of the frame 412, the step surface 4123 is recessed toward one side of the voice coil 42, so that when the inner ring portion 4113 of the diaphragm 411 is ensured to overlap and support the step surface 4123 of the frame 412, the upper surface of the inner ring portion 4113 of the diaphragm 411 is ensured to be flush with the upper surface of the frame 412, so that the assembly structure is more compact, and the vibration performance of the whole diaphragm assembly 41 is ensured.

In an embodiment, a part of the central washer 222 is concavely arranged towards a direction away from the diaphragm assembly 41 to form an avoidance area 223, one end of the avoidance area 223 is communicated with the mounting hole 25, the other end of the avoidance area 223 extends towards the periphery of the central washer 222, and the avoidance area 223 is arranged corresponding to the lead wire of the voice coil 42 and/or the centering support piece 43.

In this embodiment, as shown in fig. 3,4, 7 and 8, by providing the avoidance area 223 in the central washer 222, one end of the avoidance area 223 is communicated with the mounting hole 25, and the other end of the avoidance area 223 extends towards the periphery of the central washer 222, so that the avoidance area 223 is utilized to correspond to the lead wire of the voice coil 42 and/or the centering support piece 43, and thus the avoidance area 223 is utilized to provide a avoidance space for vibration of the lead wire of the voice coil 42 and/or the centering support piece 43.

It is understood that the relief area 223 may be a through-hole or a notched structure through the central washer 222. Of course, the avoidance area 223 may be a groove structure formed by recessing the central washer 222 in a direction away from the diaphragm assembly 41, which is not limited herein.

In one embodiment, the magnetic yoke 21 is provided with a positioning table 211 adjacent to the mounting hole 25, and the positioning table 211 is connected to the conductive bracket 3.

In the present embodiment, as shown in fig. 2 to 4, 7, 8, and 14 to 15, by providing the positioning table 211 on the magnetic yoke 21, further mounting, fixing, and positioning of the conductive bracket 3 is achieved by the positioning table 211.

It will be appreciated that the locating stage 211 is disposed adjacent the mounting aperture 25. Alternatively, the positioning stage 211 may be a protrusion extending toward one side of the diaphragm assembly 41; alternatively, the positioning stage 211 may be a protrusion extending toward a side away from the diaphragm assembly 41, which is not limited herein.

In this embodiment, the positioning stage 211 is optionally located between the central magnetic portion 22 and the conductive support 3. It can be appreciated that the positioning table 211 extends towards one side of the diaphragm assembly 41 to form a protrusion, so that a plane arrangement of one side of the magnetic yoke 21 facing away from the diaphragm assembly 41 can be ensured, and the sound generating apparatus 100 can be conveniently assembled in an electronic device. Meanwhile, the positioning table 211 can be utilized to realize the positioning and limiting functions on the central magnetic part 22 and the conductive bracket 3.

In one embodiment, as shown in fig. 14 and 15, the positioning table 211 is formed by bending one side of the magnetic yoke 21 adjacent to the mounting hole 25, that is, the positioning table 211 is formed by bending one side of the magnetic yoke 21 adjacent to the third through hole. It can be appreciated that the positioning table 211 and the magnetic yoke 21 are integrally formed, so that the processing steps of the magnetic yoke 21 can be simplified, and the structural strength of the positioning table 211 can be improved. Of course, in other embodiments, the positioning table 211 and the magnetic yoke 21 may be separately disposed, and the positioning table 211 is connected to the magnetic yoke 21 by welding or adhering, which is not limited herein.

Optionally, the positioning table 211 is an annular boss disposed around the mounting hole 25. The contact area between the positioning table 211 and the conductive bracket 3 can be effectively increased, so that the installation stability is improved. Of course, in other embodiments, the positioning stage 211 includes a plurality of positioning stages 211 spaced along the periphery of the mounting hole 25. It will be appreciated that the spacing between two adjacent positioning platforms 211 reduces the cost and also enables the mounting and positioning of the conductive support 3. In the present embodiment of the present invention, in the present embodiment,

In an embodiment, the positioning table 211 includes a first positioning portion 2111 and a second positioning portion 2112 disposed at an included angle, one end of the first positioning portion 2111 away from the second positioning portion 2112 is connected with the magnetic yoke 21, the second positioning portion 2112 extends towards a direction away from the central magnetic portion 22, the conductive bracket 3 is provided with a limiting table 311, and the limiting table 311 is in limiting connection with the second positioning portion 2112.

In this embodiment, as shown in fig. 7, 8 and 15, by setting the positioning table 211 as an inverted L-shaped mechanism, the first positioning portion 2111 and the second positioning portion 2112 of the positioning table 211 cooperate to form a spacing step structure, and the spacing table 311 is set on the conductive bracket 3, so that spacing installation is realized on the spacing table 311 of the conductive bracket 3 by using the spacing step structure formed by cooperation of the first positioning portion 2111 and the second positioning portion 2112, so that installation fixation of the conductive bracket 3 can be realized, installation position and installation height of the conductive bracket 3 can be ensured, and displacement of the conductive bracket 3 is avoided.

Alternatively, the mounting holes 25 are provided in square holes. It will be appreciated that the positioning stage 211 includes two or four. In this embodiment, the positioning tables 211 include two positioning tables 211, which are disposed opposite to each other and correspond to two opposite edges of the mounting hole 25, which is not limited herein.

In an embodiment, the conductive support 3 is further provided with a clearance groove 312 corresponding to the positioning table 211, and the positioning table 211 is accommodated in the clearance groove 312.

In this embodiment, as shown in fig. 2,4, 11 and 18, by providing the clearance groove 312 on the conductive bracket 3, positioning assembly is achieved by matching the clearance groove 312 with the positioning table 211, and meanwhile, the contact area between the conductive bracket 3 and the positioning table 211 is increased, so as to improve the installation stability.

In an embodiment, the sound generating device 100 further includes a connection bracket 5 disposed in the mounting hole 25, the connection bracket 5 is provided with a fixing cavity 511, and the conductive bracket 3 is disposed in the fixing cavity 511.

In the present embodiment, as shown in fig. 19 to 21, 24 and 25, by providing the connection bracket 5, the conductive bracket 3 is fixed in the mounting hole 25 by the connection bracket 5, thereby further improving the mounting stability and structural strength of the conductive bracket 3. Optionally, the connection bracket 5 is a metal stamping. It will be appreciated that the shape profile of the connecting bracket 5 corresponds approximately to the shape profile of the conductive bracket 3.

In an embodiment, a supporting groove 214 is formed around the mounting hole 25 on a side of the magnetic yoke 21 facing away from the central magnetic portion 22, the connecting bracket 5 includes a main body portion 51 and a supporting stand 52 surrounding the main body portion 51, the main body portion 51 is provided with a fixing cavity 511, the main body portion 51 is disposed through the mounting hole 25, and the supporting stand 52 is accommodated in and limited by the supporting groove 214.

In this embodiment, as shown in fig. 2, 14, 16, 22 and 24, the support groove 214 is concavely formed on the side of the magnetic yoke 21 facing away from the diaphragm assembly 41, and the mounting hole 25 penetrates the bottom wall of the support groove 214, so that the support groove 214 is used to support and limit the connection bracket 5.

It will be appreciated that the main body 51 and the support 52 of the connection bracket 5 may be formed integrally, which may simplify the processing steps of the connection bracket 5 and improve the structural strength of the connection bracket 5. Alternatively, the supporting stand 52 is disposed around the periphery of the main body 51, so that the supporting stand 52 is supported and limited in the supporting slot 214 when the main body 51 of the connecting bracket 5 is inserted into the mounting hole 25. In this embodiment, the fixing cavity 511 of the connection bracket 5 may be a cavity structure with openings at two ends, which is convenient for installing the conductive bracket 3 and connecting and conducting the conductive bracket 3 with an external circuit.

In the present embodiment, a side pressure groove 212 of the magnetic yoke 21 facing away from the diaphragm assembly 41 communicates with a supporting groove 214, thus providing a mounting and limiting space for a conductive line or a flexible circuit board for connecting the conductive bracket 3 and an external circuit.

In an embodiment, as shown in fig. 19 to 21 and 24, the connection bracket 5 is further provided with a avoidance gap 53 that communicates with the fixing cavity 511, where the avoidance gap 53 is used for avoiding the routing. It will be appreciated that, by such an arrangement, the clearance gap 53 may be utilized to provide a mounting and spacing space for a conductive trace or flexible circuit board for connecting the conductive bracket 3 to an external circuit, so that the conductive trace or flexible circuit board does not protrude from a side of the magnetic yoke 21 facing away from the diaphragm assembly 41, resulting in a more compact overall structure.

In an embodiment, the inner wall of the fixing cavity 511 is provided with a positioning protrusion and/or a positioning groove 54, the periphery of the conductive bracket 3 is provided with a limiting protrusion 313, the conductive bracket 3 is arranged in the fixing cavity 511, and the limiting protrusion 313 is matched with the positioning protrusion and/or the positioning groove 54 in a positioning way.

In this embodiment, as shown in fig. 20 and 21, by providing a positioning protrusion and/or a positioning groove 54 on the connection bracket 5 and providing a positioning protrusion 313 on the periphery of the conductive bracket 3, the positioning protrusion 313 is matched with the positioning protrusion and/or the positioning groove 54 in a positioning manner, so as to realize the installation, fixation and positioning of the conductive bracket 3 and the connection bracket 5.

In an embodiment, a pressing groove 212 is further disposed on a side of the magnetic yoke 21 facing away from the central magnetic portion 22, one end of the pressing groove 212 is communicated with the mounting hole 25, the other end of the pressing groove 212 extends towards the periphery of the magnetic yoke 21, and the pressing groove 212 is used for avoiding wiring.

In the present embodiment, as shown in fig. 2,6, 14 to 16, 22 and 24, by providing the pressing groove 212 on the magnetic yoke 21, one end of the pressing groove 212 is communicated with the mounting hole 25, and the other end of the pressing groove 212 extends toward the periphery of the magnetic yoke 21, so that the pressing groove 212 is conveniently utilized for avoiding wiring.

It can be appreciated that the conductive bracket 3 of the sound generating device 100 is connected with an external circuit through a structure such as a conductive circuit or a flexible circuit board, and the pressing groove 212 on the side of the magnetic yoke 21 facing away from the diaphragm assembly 41 is used for providing a wiring space for the structure such as the conductive circuit or the flexible circuit board, and positioning and limiting mounting are realized on the wiring structure, so that the overall structure is more compact, and space is saved. In the present embodiment, the pressing groove 212 is formed by recessing a side of the magnetic yoke 21 facing away from the diaphragm assembly 41.

Optionally, the indent 212 includes a plurality; the plurality of pressing grooves 212 are spaced apart. In the present embodiment, one end of the plurality of pressing grooves 212 communicates with the mounting hole 25, and the other end of the plurality of pressing grooves 212 extends toward the periphery of the guide yoke 21 and is disposed at intervals.

In order to improve the balance performance of the sound generating apparatus 100, the plurality of pressing grooves 212 are symmetrically disposed with respect to the mounting hole 25. Of course, in other embodiments, the plurality of pressing grooves 212 may alternatively be radially disposed about the mounting hole 25, which is not limited herein.

In an embodiment, the periphery of the magnetic yoke 21 is further provided with a relief notch 213, and an end of the pressing groove 212 away from the mounting hole 25 is communicated with the relief notch 213.

In this embodiment, as shown in fig. 16, 22 and 24, by arranging the avoidance notch 213 at the periphery of the magnetic conductive yoke 21, one end of the pressing slot 212 away from the mounting hole 25 is communicated with the avoidance notch 213, so that the avoidance notch 213 can be utilized to realize further limit assembly on structures such as a conductive circuit or a flexible circuit board, and realize directional wiring installation.

In one embodiment, the conductive bracket 3 is provided with a first welding surface 316 and a second welding surface 317 which are disposed away from each other, the first welding surface 316 is disposed facing the assembly hole 4121 and is connected to the centering bracket 43, and the second welding surface 317 is used for connecting to an external power source.

In this embodiment, as shown in fig. 2 to 11 and fig. 18 to 20, a first welding surface 316 is formed on a side of the conductive support 3 facing the centering support 43, and a second welding surface 317 is further provided on a side of the conductive support 3 facing away from the first welding surface 316, so that the conductive support 3 can be connected and conducted with the centering support 43 by using the first welding surface 316, and the conductive support 3 can be connected and conducted with the centering support 43 by using the second welding surface 317 for connecting an external power source, so that the conductive support 3 can connect and conduct an external circuit with the centering support 43 to supply power to the voice coil 42.

Alternatively, the first welding surface 316 is not higher than a side surface of the central magnetic portion 22 facing the diaphragm assembly 41. It will be appreciated that by setting the first welding surface 316 not higher than the surface of the central magnetic portion 22 facing the diaphragm assembly 41, the space between the diaphragm assembly 41 and the central magnetic portion 22 can ensure the amplitude of the diaphragm assembly 41, and meet the sound production requirement. Alternatively, the first welding surface 316 may be flush with the top surface of the central magnetic portion 22; alternatively, the first welding surface 316 may be located below the top surface of the central magnetic circuit 22, and the like, and is not limited thereto.

In an embodiment, a groove 318 is formed on a side of the conductive bracket 3 facing away from the first soldering surface 316, and a bottom wall of the groove 318 forms a second soldering surface 317.

In this embodiment, as shown in fig. 2, 4,5, 6, 8, 11, 19, 23 and 25, a groove 318 is formed on a side of the conductive bracket 3 facing away from the first soldering surface 316, so that a bottom wall of the groove 318 forms a second soldering surface 317, thereby providing an installation space for a conductive circuit or a flexible circuit board for connecting the conductive bracket 3 and protecting the conductive circuit or the flexible circuit board.

In one embodiment, the conductive support 3 includes a main body 31 and a bonding pad 32, the bonding pad 32 is embedded in the main body 31, the bonding pad 32 includes a first bonding pad 321 and a second bonding pad 322 connected to each other, at least a portion of the first bonding pad 321 is exposed at the first bonding surface 316, and at least a portion of the second bonding pad 322 is exposed at the second bonding surface 317.

In this embodiment, as shown in fig. 3 to 5, 7, 8, 11, and 19 to 20, the main body member 31 of the conductive bracket 3 may be a plastic member, the bonding pad 32 may be a metal conductive member, and the bonding pad 32 and the main body member 31 of the conductive bracket 3 may be integrally formed by injection molding. It can be appreciated that, by arranging the bonding pad 32 as the first bonding pad 321 and the second bonding pad 322 that are connected, at least part of the first bonding pad 321 is exposed to the first bonding surface 316, and at least part of the second bonding pad 322 is exposed to the second bonding surface 317, so that the connection and conduction between the centering pad 43 and the first bonding pad 321 of the first bonding surface 316 are facilitated, and the connection and conduction between the conductive circuit or the flexible circuit board connected to the external circuit and the second bonding pad 322 of the second bonding surface 317 are facilitated, so that the external current is smoothly conducted to the voice coil 42 through the conductive bracket 3 and the centering pad 43.

It will be appreciated that the first bonding surface 316 is provided with two first bonding pads 323. In the present embodiment, the first pad portion 321 of the bonding pad 32 is exposed at the first bonding surface 316 to form two first pads 323 disposed at intervals. Alternatively, the two first pads 323 are arranged at intervals along the long axis direction of the magnetic circuit system 2; or, the two first pads 323 are arranged at intervals along the short axis direction of the magnetic circuit 2.

It should be noted that, as shown in fig. 10, the two first bonding pads 323 are arranged at intervals along the long axis direction of the magnetic circuit system 2, and at this time, the two centering support pieces 43 are arranged along the long axis direction of the magnetic circuit system 2 and are respectively connected and conducted with the two first bonding pads 323. As shown in fig. 9, the two first pads 323 are arranged at intervals along the short axis direction of the magnetic circuit 2, and at this time, the two centering support pieces 43 are arranged along the long axis direction of the magnetic circuit 2 and are respectively connected and conducted with the two first pads 323.

It will be appreciated that the second bonding surface 317 is provided with two second bonding pads 324, and in this embodiment, the second bonding pad portions 322 of the bonding pads 32 are exposed at the second bonding surface 317 to form two second bonding pads 324 disposed at intervals. Alternatively, two second pads 324 are arranged at intervals along the long axis direction of the magnetic circuit system 2, as shown in fig. 6; alternatively, two second pads 324 are arranged at intervals along the short axis direction of the magnetic circuit 2, as shown in fig. 2.

In one embodiment, the centering support 43 includes a plurality of centering support pieces 43, one ends of the centering support pieces 43 are respectively connected to the conductive brackets 3, and the other ends of the centering support pieces 43 are respectively connected to the frame 412 and are respectively electrically connected to the leads of the voice coil 42.

In the present embodiment, as shown in fig. 3,4, 7 to 11, and 17, the plurality of centering pieces 43 are provided such that one ends of the plurality of centering pieces 43 are respectively connected to the conductive brackets 3, and the other ends of the plurality of centering pieces 43 are respectively connected to the diaphragm assembly 41 and are respectively electrically connected to leads of the voice coil 42. Optionally, the plurality of centering struts 43 are symmetrically distributed along the long axis direction or/and the short axis direction of the magnetic circuit 2.

Alternatively, the centering support 43 includes two or four, so that the centering support 43 can be used to connect and conduct the conductive bracket 3 and the voice coil 42, and the vibration balance of the sound generating device 100 can be ensured.

It can be understood that when the number of the centering support pieces 43 is two, the two centering support pieces 43 are arranged at intervals along the long axis direction of the magnetic circuit system 2; or, the two centering support pieces 43 are arranged at intervals along the short axis direction of the magnetic circuit system 2, which is not limited herein. Of course, when the number of the centering support pieces 43 is four, the two centering support pieces 43 are arranged at intervals along the long axis direction of the magnetic circuit system 2, and the two centering support pieces 43 are arranged at intervals along the short axis direction of the magnetic circuit system 2, which is not limited herein.

In an embodiment, each centering support 43 includes a first connection portion 431, an elastic arm 432 and a second connection portion 433 sequentially connected, the first connection portion 431 is connected to the frame 412 and electrically connected to the lead wire of the voice coil 42, and the second connection portion 433 is connected to the conductive bracket 3.

In this embodiment, as shown in fig. 17, the first connection portion 431, the elastic arm 432, and the second connection portion 433 of the centering pad 43 may be selected as an integrally formed structure. Thus, the structural strength of the centering support 43 can be effectively ensured, and the processing steps of the centering support 43 are simplified.

It will be appreciated that the resilient arms 432 have at least one bend in order to ensure deformability of the centring tabs 43. In the present embodiment, a vibration space 33 is formed between the conductive bracket 3 and the inner wall of the mounting hole 25 to avoid the centering pin 43. This ensures that the centering support 43 has a sufficient vibration space when vibrating with the voice coil 42, and prevents interference or influence on other components.

In an embodiment, as shown in fig. 17, the first connection portion 431 and the second connection portion 433 are located on different planes. It can be appreciated that, by setting the first connection portion 431 and the second connection portion 433 of the centering pad 43 to different planes, the plane where the first connection portion 431 and the plane where the second connection portion 433 are located have a height difference in the vibration direction of the voice coil 42, so that the first connection portion 431 of the centering pad 43 is connected with the frame 412 of the diaphragm assembly 41, and is connected with the lead wire of the voice coil 42 by welding smoothly, and the centering pad 43 is ensured to avoid interference with the central washer 222 of the central magnetic portion 22 during the vibration process, so that the range of the avoidance region 223 set on the central magnetic portion 22 is smaller. Meanwhile, the conductive support 3 is connected with the vibrating diaphragm assembly 41 by the centering support piece 43, and the problems of swing or polarization and the like of the voice coil 42 in the vibration process can be effectively avoided by the centering support piece 43.

In an embodiment, as shown in fig. 2 to 4, fig. 6 to 8, fig. 14 to 16, and fig. 22 to 25, a positioning post 11 is disposed on a periphery of a side of the housing 1 facing away from the diaphragm assembly 41, and the magnetic yoke 21 is provided with a positioning notch 215 corresponding to the positioning post 11, and the positioning post 11 is in positioning fit with the positioning notch 215.

It can be understood that the positioning column 11 is arranged on the housing 1, and the positioning notch 215 matched with the positioning column 11 in a positioning way is formed on the magnetic conduction yoke 21, so that the positioning and mounting matching of the magnetic circuit system 2 is realized, and the mounting convenience and accuracy are improved.

In the present embodiment, as shown in fig. 3 to 5, 7, 8, 23, and 25, the side magnet portion 23 includes side magnets 231 and Bian Huasi and 232 stacked on each other, and the side magnet 231 is sandwiched between Bian Huasi and 232 and the magnetic yoke 21, and Bian Huasi and 232 are connected to the housing 1. Optionally, bian Huasi and the housing 1 are integrally formed, which can simplify the structure and improve the installation stability.

As shown in fig. 22 to 25, the present invention further provides a sound generating module 700, where the sound generating module 700 includes the sound generating device 100 described above, and the specific structure of the sound generating device 100 refers to the foregoing embodiment, and since the sound generating module 700 adopts all the technical solutions of all the foregoing embodiments, at least has all the beneficial effects brought by the technical solutions of the foregoing embodiments, and will not be described in detail herein.

In an embodiment, the sounding module 700 further includes a flexible circuit board 600, one end of the flexible circuit board 600 is electrically connected to the conductive bracket 3 of the sounding device 100, and the other end of the flexible circuit board 600 is used for connecting to an external power source.

It will be appreciated that the flexible circuit board 600 is used to connect and conduct an external circuit to the sound emitting device 100. The flexible circuit board 600 is provided with an inner pad and an outer pad, the inner pad of the flexible circuit board 600 is connected to the second soldering surface 317 of the conductive holder 3 of the sound generating apparatus 100, and the outer pad of the flexible circuit board 600 is used for connection with an external terminal.

In this embodiment, the sounding module 700 further includes a module housing, the module housing has a cavity, the sounding device 100 is disposed in the cavity of the module housing, and at least one end of the flexible circuit board 600 connected with the sounding device 100 is disposed in the cavity of the module housing. Of course, in other embodiments, the flexible circuit board 600 may be disposed entirely in the cavity of the module housing, which is not limited herein.

In one embodiment, the flexible circuit board 600 is provided with a positioning ear 610 adjacent to one end of the conductive bracket 3, and the conductive bracket 3 is formed with a positioning sidewall that is matched with the positioning ear 610 in a positioning manner.

In this embodiment, as shown in fig. 22, by disposing the positioning ear 610 on the flexible circuit board 600, the positioning ear 610 is used to make spacing abutment with the positioning side wall of the conductive bracket 3, so that not only connection conduction between the flexible circuit board 600 and the second welding surface 317 of the conductive bracket 3 can be achieved, but also the problem that the connection between the flexible circuit board 600 and the second welding surface 317 of the conductive bracket 3 is not smooth when the flexible circuit board 600 is displaced can be avoided.

In order to further implement the limit mounting on the flexible circuit board 600, in an embodiment, as shown in fig. 11, 19 and 24, the conductive bracket 3 is further provided with a yielding notch 319 corresponding to the flexible circuit board 600. It can be appreciated that the flexible circuit board 600 sequentially passes through the relief notch 319, the avoidance notch 53, the pressing groove 212, and the avoidance notch 213; or, the flexible circuit board 600 sequentially passes through the yielding gap 319, the pressing groove 212 and the yielding gap 213; or, the flexible circuit board 600 sequentially passes through the relief notch 319 and the pressing groove 212. The flexible circuit board 600 can be mounted in a limiting manner, so that the matching structure of the flexible circuit board 600 and the sound generating device 100 is simpler and more compact, and the flexible circuit board 600 can be guided.

The invention also provides electronic equipment, which comprises the sounding device 100. The specific structure of the sound generating device 100 refers to the foregoing embodiments, and because the electronic device adopts all the technical solutions of all the foregoing embodiments, the sound generating device at least has all the beneficial effects brought by the technical solutions of the foregoing embodiments, which are not described in detail herein.

In this embodiment, the electronic device further includes a device housing, and the sound generating apparatus 100 and the flexible circuit board 600 are disposed in the device housing. It is understood that the electronic device may be an earphone, a mobile phone, a computer, a tablet computer, a smart wearable device, etc., and is not limited herein.

The invention also provides electronic equipment, which comprises the sounding module 700. The specific structure of the sounding module 700 refers to the foregoing embodiments, and because the electronic device adopts all the technical solutions of all the foregoing embodiments, the sounding module at least has all the beneficial effects brought by the technical solutions of the foregoing embodiments, which are not described in detail herein.

It is understood that the electronic device may be an earphone, a mobile phone, a computer, a tablet computer, a smart wearable device, etc., and is not limited herein. In this embodiment, the electronic device further includes a device housing, and the sounding module 700 is disposed in the device housing.

The foregoing description is only of the optional embodiments of the present invention, and is not intended to limit the scope of the invention, and all equivalent structural modifications made by the present description and accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the present invention.

Claims

1. A sound emitting device, the sound emitting device comprising:

2. The sound generating apparatus of claim 1, wherein the inner wall of the mounting hole, the auxiliary magnet and the conductive bracket enclose to form a vibration space avoiding the centering support;

3. The sound generating apparatus of claim 1, wherein the side magnetic portion comprises a side magnet and Bian Huasi provided to the side magnet;

4. The sound generating apparatus as recited in claim 1, wherein the frame is further provided with a connection stage extending toward the inside of the mounting hole adjacent to the mounting hole, and the end of the centering strip remote from the conductive bracket is connected to the connection stage.

5. The sound generating apparatus according to claim 4, wherein the connection stage is formed by bending or stretching a side of the skeleton adjacent to the fitting hole;

6. The sound generating apparatus of claim 1, wherein the diaphragm includes a folded ring portion, a fixing portion connected to an outer side of the folded ring portion, and an inner ring portion connected to an inner side of the folded ring portion, the inner ring portion forming the inner ring hole, a periphery of the bobbin being connected to the inner ring portion and being located between the voice coil and the inner ring portion;

7. The sound generating device according to claim 1, wherein a part of the central washer is concavely arranged towards a direction away from the vibrating diaphragm assembly to form an avoidance area, one end of the avoidance area is communicated with the mounting hole, the other end of the avoidance area extends towards the periphery of the central washer, and the avoidance area is arranged corresponding to a lead wire of the voice coil and/or the centering support sheet;

8. The sound generating apparatus of claim 1, wherein the magnetically permeable yoke is provided with a positioning table adjacent the mounting hole, the positioning table being connected to the electrically conductive bracket;

9. The sound generating apparatus of claim 1, further comprising a connecting bracket disposed in the mounting hole, the connecting bracket having a fixing cavity, the conductive bracket being disposed in the fixing cavity.

10. The sound generating apparatus according to claim 9, wherein a supporting groove is formed around the mounting hole on a side of the magnetic yoke facing away from the central magnetic portion, the connecting bracket includes a main body portion provided with the fixing cavity and a bracket surrounding the main body portion, the main body portion is penetrated through the mounting hole, and the bracket is accommodated and limited in the supporting groove;

and/or, the connecting support is a metal stamping part.

11. The sound generating device as claimed in claim 1, characterized in that a pressing groove is further provided on a side of the magnetic yoke facing away from the central magnetic part, one end of the pressing groove is communicated with the mounting hole, the other end of the pressing groove extends towards the periphery of the magnetic yoke, and the pressing groove is used for avoiding wiring.

12. The sound emitting apparatus of claim 11, wherein the indent comprises a plurality of;

13. The sound generating apparatus as recited in claim 1, wherein the conductive bracket is provided with a first welding surface and a second welding surface facing away from each other, the first welding surface being disposed facing the assembly hole and connected to the centering bracket, and the second welding surface being for connection to an external power source.

14. The sound generating apparatus of claim 13, wherein a side of the conductive bracket facing away from the first welding surface is provided with a groove, and a bottom wall of the groove forms the second welding surface;

15. The sound generating apparatus according to any one of claims 1 to 14, wherein the centering tabs include a plurality of centering tabs, one ends of the plurality of centering tabs are respectively connected to the conductive brackets, and the other ends of the plurality of centering tabs are respectively connected to the bobbins and are respectively electrically connected to leads of the voice coil;

16. The sound generating apparatus as claimed in claim 15, wherein a plurality of said centering struts are symmetrically distributed along a major axis direction or/and a minor axis direction of said magnetic circuit system;

and/or the elastic arm is provided with at least one bending;

17. A sound emitting module, characterized in that the sound emitting module comprises:

A module housing;

the sound emitting device of any one of claims 1-16, disposed within the module housing; and

18. The sound module as claimed in claim 17, wherein a positioning ear is provided at an end of the flexible circuit board adjacent to the conductive bracket, and the conductive bracket is formed with a positioning sidewall in positioning engagement with the positioning ear;

19. An electronic device comprising the sound emitting apparatus according to any one of claims 1 to 16;

or, the electronic device comprises the sound emitting module of claim 17 or 18.