CN216775011U

CN216775011U - Sound production monomer, sound production module and electronic equipment

Info

Publication number: CN216775011U
Application number: CN202123435258.9U
Authority: CN
Inventors: 陈阿亮; 陈国强
Original assignee: Goertek Inc
Current assignee: Goertek Inc
Priority date: 2021-12-30
Filing date: 2021-12-30
Publication date: 2022-06-17
Anticipated expiration: 2031-12-30

Abstract

The utility model discloses a sounding unit, a sounding module and electronic equipment, wherein the sounding unit is provided with a sound cavity and an air leakage port for communicating the sound cavity with the external environment, the sounding unit comprises a metal isolation net, the metal isolation net covers the air leakage port, the metal isolation net comprises a plurality of first metal wires and a plurality of second metal wires which are woven in a staggered mode, and the first metal wires and the second metal wires are woven in a staggered mode to form air holes; wherein, the included angle formed by the first metal wire and the second metal wire and the outer edge of the metal isolation net is larger than 0 degree and smaller than 90 degrees. The utility model aims to provide a sounding single body which can effectively prevent a metal isolation net from falling off wires and effectively improve the product yield of a module.

Description

Sound production monomer, sound production module and electronic equipment

Technical Field

The utility model relates to the technical field of electroacoustic conversion, in particular to a sounding unit, a sounding module and electronic equipment applying the sounding module.

Background

Along with the development of science and technology, people require more and more high to electronic equipment's tone quality, and the sound production module among the electronic equipment receives electronic equipment outward appearance structure's influence, and its volume is also littleer and more. In order to improve the acoustic performance of the sound module, sound-absorbing particles need to be filled. In the correlation technique, the sound production module adopts ventilative metal separation net to keep apart the speaker monomer in the back chamber usually, and ventilative metal separation net is mostly to weave the net material, and weave the net material yielding when cutting, and the position of deciding appears falling the silk easily, can lead to the module product to scrap even.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide a sounding single body, a sounding module and electronic equipment, and aims to provide the sounding single body which can effectively prevent a metal isolation net from dropping wires and effectively improve the product yield of the module.

In order to achieve the above object, the present invention provides a sound unit, wherein the sound unit is provided with a sound cavity and an air release opening for communicating the sound cavity with an external environment, the sound unit comprises a metal isolation net, the metal isolation net covers the air release opening, the metal isolation net comprises a plurality of first metal wires and a plurality of second metal wires which are woven in a staggered manner, and the plurality of first metal wires and the plurality of second metal wires are woven in a staggered manner to form air vents;

wherein, the included angle formed by the first metal wire, the second metal wire and the outer edge of the metal isolation net is larger than 0 degree and smaller than 90 degrees.

In an embodiment, an included angle formed by the first metal wire and the second metal wire and the outer edge of the metal separation net is 45 °.

In one embodiment, the sounding monomer further comprises a vibration system and a magnetic circuit system, the vibration system comprises a vibrating diaphragm and a voice coil, the magnetic circuit system has a magnetic gap, and one end of the voice coil is connected with the vibrating diaphragm;

the other end of the voice coil is inserted into the magnetic gap; or the other end of the voice coil is positioned above the magnetic gap and is arranged opposite to the magnetic gap.

In one embodiment, the magnetic circuit system includes a central magnetic circuit portion, an edge magnetic circuit portion and a magnetic yoke, the central magnetic circuit portion and the edge magnetic circuit portion are all disposed on the magnetic yoke and are spaced to define the magnetic gap, the edge magnetic circuit portion is disposed on the periphery of the central magnetic circuit portion, the edge portion of the diaphragm is fixed on the edge magnetic circuit portion to define the acoustic cavity, and the air release port is disposed on the edge magnetic circuit portion or the magnetic yoke.

In one embodiment, the metal separation net comprises a main body part and a folded part, the main body part is attached to the magnetic guide yoke, the folded part is arranged on the periphery of the main body part and is bent towards a direction close to the magnetic guide yoke relative to the main body part, and the folded part is connected with the side wall of the magnetic guide yoke.

In an embodiment, the main part has the continuous long limit portion and the short side portion of order, the long limit portion with the part that the short side portion meets forms the bight, hem portion sets up with two at least diagonal angles the part that the bight corresponds is equipped with dodges the mouth, lose heart the mouth not with dodge mouthful intercommunication.

In one embodiment, the main body portion is provided with an open port facing the magnetic yoke, and the air release port is not communicated with the open port.

In an embodiment, the flange portion is provided with a glue notch distributed along the circumferential direction of the main body portion, and the air leakage port is not communicated with the glue notch.

In an embodiment, the sound generating unit further includes a housing, the vibration system and the magnetic circuit system are both fixed to the housing, and an edge portion of the diaphragm is fixed to the housing to define the sound cavity.

In one embodiment, the housing is provided with an extension portion extending outward relative to the magnetic yoke, one end of the flange portion away from the main body portion is provided with a flange portion, the flange portion extends horizontally outward relative to the extension portion, and the flange portion is connected with the extension portion.

The utility model also provides a sounding module, which comprises:

the device comprises a shell, a first fixing device and a second fixing device, wherein a mounting cavity is arranged in the shell; and

the aforesaid sound production monomer, the sound production monomer is located in the installation cavity, in order to incite somebody to action preceding sound chamber and back sound chamber are separated into to the installation cavity, back sound intracavity is filled with and inhales the sound granule, wherein, the shell still be equipped with the phonate hole of preceding sound chamber intercommunication.

The utility model also provides a sounding module, which comprises:

the device comprises a shell, a first fixing device and a second fixing device, wherein a mounting cavity is arranged in the shell;

the sound generating unit is arranged in the mounting cavity to divide the mounting cavity into a front sound cavity and a rear sound cavity, and the shell is also provided with a sound outlet communicated with the front sound cavity;

the metal isolation net is arranged in the installation cavity, the metal isolation net is matched with the shell to divide the rear sound cavity into an installation cavity and a filling cavity, the sounding monomer is arranged in the installation cavity, and sound-absorbing particles are filled in the filling cavity;

the metal isolation net comprises a plurality of first metal wires and a plurality of second metal wires which are woven in a staggered mode, the first metal wires and the second metal wires are woven in a staggered mode to form air holes, and included angles formed by the first metal wires, the second metal wires and the outer edge of the metal isolation net are larger than 0 degree and smaller than 90 degrees.

In one embodiment, the metal isolation net is vertically inserted into the rear sound cavity, and the top and the bottom of the metal isolation net are respectively connected with the inner peripheral wall of the shell.

In an embodiment, the metal isolation net is horizontally laid in the rear acoustic cavity, and the outer periphery of the metal isolation net is connected with the inner peripheral wall of the installation cavity.

The utility model further provides electronic equipment which comprises the sounding module.

According to the technical scheme, the metal isolation net is arranged on the air leakage opening which is communicated with the sound cavity and the external environment, so that when the sounding monomer is applied to the sounding module, the metal isolation net is utilized to effectively prevent sound absorption particles and the like from entering the sounding monomer through the air leakage opening to influence the performance of the sounding monomer; meanwhile, the metal isolation net is provided with the plurality of first metal wires and the plurality of second metal wires which are woven in a staggered mode, the plurality of first metal wires and the plurality of second metal wires are woven in a staggered mode to form the air holes, the air holes are utilized to achieve the air permeating function, the included angle formed by the first metal wires and the second metal wires of the metal isolation net and the outer edge of the metal isolation net is larger than 0 degree and smaller than 90 degrees, the weaving force between the first metal wires and the second metal wires can be increased by the included angle formed by the first metal wires and the second metal wires and the outer edge of the metal isolation net, the first metal wires or the second metal wires located on the edge portion can be prevented from falling off, the problem that the metal wires fall off from the metal isolation net is effectively avoided, the metal isolation net is applied to the sounding module, and the product yield of the module can be greatly improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a sounding unit according to a first embodiment of the present invention;

FIG. 2 is a schematic view of a sounding unit according to a second embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a sounding unit according to a third embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a sounding unit according to a fourth embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a sounding unit according to a fifth embodiment of the present invention;

FIG. 6 is an exploded view of the sound generating unit of FIG. 5;

FIG. 7 is a schematic view of a partially enlarged structure of a metal isolation net according to an embodiment of the present invention;

FIG. 8 is a schematic view of a partial enlarged structure of a metal separation net according to another embodiment of the present invention;

FIG. 9 is a schematic view of a partial enlarged structure of a metal separation net according to another embodiment of the present invention;

FIG. 10 is a schematic structural diagram of a metal separation net according to an embodiment of the present invention;

FIG. 11 is a schematic cross-sectional view of the metal separation net of FIG. 10;

FIG. 12 is a schematic structural view of a metal spacer processing according to an embodiment of the present invention;

fig. 13 is a schematic partial structural diagram of a sound module according to an embodiment of the present invention.

The reference numbers illustrate:

the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection of the present invention.

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

Also, the meaning of "and/or" and/or "appearing throughout is meant to encompass three scenarios, exemplified by" A and/or B "including scenario A, or scenario B, or scenarios where both A and B are satisfied.

In addition, descriptions such as "first", "second", etc. in the present invention are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

The utility model provides a metal isolation net 1. It can be understood that, in metal spacer net 1 can be applied to vocal monomer 100 or vocal module 600, set up metal spacer net 1 in vocal monomer 100 to the lid fits the mouth that loses heart of vocal monomer 100, perhaps set up metal spacer net 1 and keep apart vocal monomer 100 in the back sound chamber 520 of vocal module 600, form filling chamber 522, thereby conveniently inhale the filling of sound granule, realize the full filling of vocal module 600, improve vocal module 600's acoustic performance.

Referring to fig. 1 to 9, in an embodiment of the present invention, the sounding unit 100 is provided with a sound cavity and an air release port for communicating the sound cavity with an external environment, the sounding unit 100 includes a metal separation net 1, the metal separation net 1 covers the air release port, the metal separation net 1 includes a plurality of first metal wires 11 and a plurality of second metal wires 12 which are woven in a staggered manner, and the plurality of first metal wires 11 and the plurality of second metal wires 12 are woven in a staggered manner to form an air vent 13; wherein, the included angle formed by the first metal wire 11 and the second metal wire 12 and the outer edge 147 of the metal separation net 1 is more than 0 degree and less than 90 degrees.

In this embodiment, the sound generating unit 100 is a speaker unit, the sound generating unit 100 includes a vibration system 3 and a magnetic circuit system 4, the vibration system 3 includes a vibrating diaphragm 31 and a voice coil 32, the magnetic circuit system 4 has a magnetic gap, one end of the voice coil 32 is connected with the vibrating diaphragm 31, and the other end of the voice coil 32 is inserted into the magnetic gap. When the voice coil 32 is conducted with an external circuit, the voice coil 32 is utilized to transmit electric energy to the magnetic gap of the magnetic circuit system 4, and under the action of magnetic lines of force generated by the magnetic gap, the voice coil 32 and the vibrating diaphragm 31 move up and down, namely, the magnetic field generated by the magnetic circuit system 4 is utilized to convert the electric energy into mechanical energy, so that the voice coil 32 vibrates, the vibrating diaphragm 31 of the vibrating system 3 is driven to realize vibration and sound production, and the mechanical energy is further converted into sound energy. That is, after the voice coil 32 disposed in the magnetic gap receives the externally varying alternating current signal, the voice coil is driven by the magnetic field force of the magnetic circuit system 4 to perform reciprocating cutting motion of the magnetic lines of force, so as to drive the diaphragm 31 of the vibration system 3 to vibrate and sound.

In this embodiment, the sound generating unit 100 is provided with a sound cavity and a venting port for communicating the sound cavity with the external environment, so that when the voice coil 32 of the vibration system 3 drives the diaphragm 31 to vibrate, the pressure in the sound cavity can be balanced through the venting port. It will be appreciated that, when the sound generating unit 100 is applied to the sound generating module 600, the sound absorbing particles are generally filled in order to further improve the performance of the sound generating module 600.

In order to prevent sound-absorbing particles from entering the sound-generating unit 100 through the air vent to affect the performance of the sound-generating unit 100, as shown in fig. 1 to 5, in this embodiment, the sound-generating unit 100 is further provided with a metal separation net 1, and the metal separation net 1 covers the air vent. It will be appreciated that the metal separation mesh 1 has a vent 13 in order to balance the pressure within the acoustic chamber.

In the present embodiment, as shown in fig. 7 to 9, the metal separation net 1 includes a plurality of first metal wires 11 and a plurality of second metal wires 12 which are woven in a staggered manner, that is, the metal separation net 1 is formed by weaving a plurality of first metal wires 11 and a plurality of second metal wires 12 in a staggered manner, and the plurality of first metal wires 11 and the plurality of second metal wires 12 are woven in a staggered manner to form the vent holes 13. It can be understood that the metal separation net 1 has a first surface and a second surface which are oppositely arranged, that is, the first surface or the second surface of the metal separation net 1 is correspondingly covered on the air release opening, or the first surface or the second surface of the metal separation net 1 is in abutting contact with the magnetic circuit system 4 or the housing 2 of the sound generating unit 100.

It can be understood that the first metal wires 11 and the second metal wires 12 of the metal separation net 1 form an included angle with the outer edge 147 of the metal separation net 1 which is greater than 0 ° and smaller than 90 °, that is, the first metal wires 11 and the second metal wires 12 are not arranged in parallel or perpendicular to the outer edge 147 of the metal separation net 1, and the first metal wires 11 and the second metal wires 12 are arranged in an acute angle with the outer edge 147 of the metal separation net 1. Optionally, the first wires 11 and the second wires 12 form an angle of 45 ° with the outer edge 147 of the metal spacer mesh 1. Of course, the included angle formed by the first metal wire 11 and the second metal wire 12 and the outer edge 147 of the metal separation net 1 may also be 5 °, 10 °, 15 °, 20 °, 25 °, 30 °, 35 °, 40 °, 50 °, 55 °, 60 °, 65 °, 70 °, 75 °, 80 °, 85 °, and the like, which is not limited herein.

In this embodiment, an included angle greater than 0 ° and smaller than 90 ° is formed between the first metal wire 11 and the second metal wire 12 of the metal isolation net 1 and the outer edge 147 of the metal isolation net 1, so that the weaving force between the first metal wire 11 and the second metal wire 12 can be increased by using the included angle formed between the first metal wire 11 and the second metal wire 12 and the outer edge 147 of the metal isolation net 1, and the first metal wire 11 or the second metal wire 12 located at the outer edge 147 of the metal isolation net 1 can be prevented from falling off, thereby effectively avoiding the problem of wire falling of the metal isolation net 1, and when the metal isolation net 1 is applied to the sound module 600, the yield of the module can be greatly improved.

According to the sounding unit 100, the metal isolation net 1 is arranged at the air leakage port communicating the sound cavity with the external environment, so that when the sounding unit 100 is applied to the sounding module 600, the metal isolation net 1 is utilized to effectively prevent sound-absorbing particles and the like from entering the sounding unit 100 through the air leakage port to influence the performance of the sounding unit 100; meanwhile, the metal isolation net 1 is provided with the plurality of first metal wires 11 and the plurality of second metal wires 12 which are woven in a staggered manner, so that the plurality of first metal wires 11 and the plurality of second metal wires 12 are woven in a staggered manner to form the air vents 13, the air vents 13 are utilized to realize the ventilation function, the included angle formed by the first metal wires 11 and the second metal wires 12 of the metal isolation net 1 and the outer edge 147 of the metal isolation net 1 is more than 0 degree and less than 90 degrees, so that the weaving force between the first metal wires 11 and the second metal wires 12 can be increased by utilizing the included angle formed by the first metal wires 11 and the second metal wires 12 and the outer edge 147 of the metal isolation net 1, the falling of the first metal wires 11 or the second metal wires 12 positioned at the outer edge 147 of the metal isolation net 1 can be prevented, the problem of wire falling of the metal wires of the metal isolation net 1 is effectively avoided, and the metal isolation net 1 is applied to a sound production module, the product yield of the module can be greatly improved.

In order to further avoid the problem of wire dropping of the metal separation net 1, as shown in fig. 8 and 9, in the present embodiment, the first metal wires 11 and the second metal wires 12 are interlaced at the edge portion of the metal separation net 1 to form the overlapped region 14, and the overlapped region 14 is pressed into the rolled portion 143 by the pressure in the direction from the first surface to the second surface.

It can be understood that the first metal wires 11 and the second metal wires 12 are interwoven at the edge portion of the metal separation net 1 to form the overlapping region 14, so that the overlapping region 14 is pressed into the rolling portion 143 by the pressure from the first surface to the second surface, and the rolling portion 143 effectively prevents the first metal wires 11 and the second metal wires 12 at the outer edge 147 of the metal separation net 1 from scattering or scattering, thereby effectively avoiding the wire dropping problem of the metal separation net 1, and the metal separation net 1 is applied to the sounding unit 100 or the sounding module 600, which can effectively improve the yield of products.

According to the sound production unit 100, the first metal wire 11 and the second metal wire 11 are interwoven at the edge part of the metal isolation net 1 to form the overlapping area 14, so that the overlapping area 14 is pressed into the rolling part 143 by pressure from the first surface to the second surface, and the rolling part 143 can be used for preventing the metal wires in the overlapping area at the edge of the metal isolation net 1 from scattering or dispersing, so that the problem of wire dropping of the metal wires of the metal isolation net 1 is effectively avoided, and the metal isolation net 1 is applied to the sound production module 600, so that the product yield can be effectively improved.

In an embodiment, the overlap region 14 includes a crossing point 141 of the first wire 11 and the second wire 12 and an extension 142 of the first wire 11 and the second wire 12 to the crossing point 141 and near an outer edge 147 of the metal separator mesh 1 and/or far from the outer edge 147 of the metal separator mesh 1, and the rolling part 143 includes a first rolling plane 144 formed at the first wire 11 and a second rolling plane 145 formed at the second wire 12 at the overlap region 14.

As shown in fig. 8, in the present embodiment, the edge portion of the metal separation net 1 is formed by a plurality of first metal wires 11 and a plurality of second metal wires 12 which are interlaced to form an overlap region 14, and the overlap region 14 includes a crossing point 141 of the first metal wires 11 and the second metal wires 12 and an extension portion 142 of the first metal wires 11 and the second metal wires 12 which extends to the crossing point 141 and is close to the outer edge 147 of the metal separation net 1 and/or far from the outer edge 147 of the metal separation net 1.

It is understood that, after the first wire 11 and the second wire 12 of the overlap region 14 are subjected to the pressure in the direction from the first surface to the second surface, the extended portion 142 of the first wire 11 located at the outer edge 147 of the metal separator net 1 is pressed into the first rolled plane 144, and the extended portion 142 of the second wire 12 located at the outer edge 147 of the metal separator net 1 is pressed into the second rolled plane 145, so that the first rolled plane 144 and the second rolled plane 145 constitute the rolled section 143.

In this embodiment, the first rolled plane 144 and the second rolled plane 145 of the rolled section 143 have a plane or a sheet or a flat plate shape, and the first wire 11 and the second wire 12 of the metal separation net 1 away from the rolled section 143 have a cylindrical wire-shaped structure. It can be understood that the first rolling plane 144 and the second rolling plane 145 of the outer edge 147 of the metal separation net 1 are matched with each other, so as to effectively prevent the first metal wire 11 and the second metal wire 12 in the cylindrical filiform structure from being scattered or scattered, so as to avoid the problem of wire dropping of the metal separation net 1.

In one embodiment, as shown in fig. 8, the first and second calendering planes 144 and 145 are located in the same plane. It will be appreciated that the first wire 11 and the second wire 12 of the overlap region 14 are simultaneously subjected to a pressure in the direction from the first surface to the second surface, such that the resulting first drawing plane 144 and second drawing plane 145 extend into one plane, i.e. the first drawing plane 144 and the second drawing plane 145 lie in the same plane.

In one embodiment, the first rolling plane 144 and the second rolling plane 145 corresponding to the adjacent rolling portions 143 extend to form an integrally disposed rolling combination surface 146.

As shown in fig. 9, in the present embodiment, after the first wire 11 and the second wire 12 in the overlap region 14 are simultaneously subjected to the pressure in the first surface to second surface direction, the first wire 11 and the second wire 12 are caused to extend and abut against the first rolling plane 144 and the second rolling plane 145 in the process of forming the first rolling plane 144 and the second rolling plane 145, and are further rolled to form the integrally provided rolling combination surface 146.

It can be understood that by rolling the first rolling plane 144 and the second rolling plane 145 to form the integrally arranged rolling combination surface 146, the rolling part 143 of the overlapping area 14 at the outer edge 147 of the metal separation net 1 forms an integral structure, which further prevents the first metal wire 11 and the second metal wire 12 from being scattered or scattered, so as to avoid the problem of wire dropping of the metal separation net 1.

As shown in fig. 9, it can be understood that both ends of the rolling combination surface 146 of the outer edge 147 of the metal separation net 1 are respectively connected with the first rolling plane 144 of the first metal wire 11 and the second rolling plane 145 of the second metal wire 12 to form an integral structure, so as to effectively avoid the problem of wire dropping of the metal separation net 1.

As shown in fig. 7 to 9, the included angles formed by the first metal wires 11 and the second metal wires 12 and the outer edge 147 of the metal separation net 1 are greater than 0 ° and smaller than 90 °, that is, the included angles formed by the first metal wires 11 and the second metal wires 12 and the outer edge 147 of the plurality of rolling combined surfaces 146 of the metal separation net 1 are greater than 0 ° and smaller than 90 °.

It can be understood that, by arranging the first wires 11 and the second wires 12 to form an angle greater than 0 ° and smaller than 90 ° with the outer edge 147 of the metal separation net 1, respectively, the braiding force between the first wires 11 and the second wires 12 can be increased, and the first wires 11 or the second wires 12 located at the outer edge 147 can be prevented from falling off. Moreover, the arrangement can make the first rolling plane 144 and the second rolling plane 145 pressed by the first metal wire 11 and the second metal wire 12 in the overlapping area 14 from the first surface to the second surface extend to both ends more easily, so that the first rolling plane 144 and the second rolling plane 145 extend to each other, or form the rolling combination surface 146 integrally arranged, thereby effectively avoiding the wire dropping problem of the metal separation net 1.

In this embodiment, the angle formed by the first and

second wires

11, 12 and the outer edge 147 of the metal spacer mesh 1 is optionally larger than 25 ° and smaller than 60 °. Optionally, the first wires 11 and the second wires 12 form an angle of 45 ° with the outer edge 147 of the metal spacer mesh 1.

In one embodiment, as shown in fig. 1 to fig. 6, the sounding unit 100 further includes a vibration system 3 and a magnetic circuit system 4, the vibration system 3 includes a diaphragm 31 and a voice coil 32, the magnetic circuit system 4 has a magnetic gap, and one end of the voice coil 32 is connected to the diaphragm 31; the other end of the voice coil 32 is inserted into the magnetic gap; alternatively, the other end of the voice coil 32 is located above and opposite the magnetic gap.

As shown in fig. 1 to 6, in an embodiment, one end of the voice coil 32 is connected to the diaphragm 31, and the other end of the voice coil 32 is inserted into and suspended in the magnetic gap, so that after the voice coil 32 is conducted with an external circuit, the voice coil 32 transmits electric energy to the magnetic gap of the magnetic circuit system 4, and under the action of magnetic lines of force generated by the magnetic gap, the voice coil 32 and the diaphragm 31 move up and down, that is, the magnetic field generated by the magnetic circuit system 4 is utilized to convert the electric energy into mechanical energy, so that the voice coil 32 vibrates, and the diaphragm 31 of the vibration system 3 is driven to vibrate and sound, and further, the mechanical energy is converted into sound energy.

In another embodiment, one end of the voice coil 32 is connected to the diaphragm 31, and the other end of the voice coil 32 is located above and opposite to the magnetic gap. So after voice coil 32 and external circuit switched on, voice coil 32 makes voice coil 32, vibrating diaphragm 31 do the up-and-down motion under the magnetic line of force effect that magnetic circuit 4 produced, also utilizes the magnetic field that magnetic circuit 4 produced to convert electrical energy into mechanical energy, thereby makes voice coil 32 take place to vibrate, and drives vibrating diaphragm 31 realization vibration sound production of vibration system 3, further converts mechanical energy into acoustic energy.

In one embodiment, the magnetic circuit system 4 includes a central magnetic circuit portion 42, a side magnetic circuit portion 43, and a magnetic yoke 44, wherein the central magnetic circuit portion 42 and the side magnetic circuit portion 43 are disposed on the magnetic yoke 44 and spaced apart from each other to define a magnetic gap, the side magnetic circuit portion 43 is disposed on an outer periphery of the central magnetic circuit portion 42, an edge portion of the diaphragm 31 is fixed to the side magnetic circuit portion 43 to define an acoustic cavity, and a relief port is disposed on the side magnetic circuit portion 43 or the magnetic yoke 44.

In the present embodiment, as shown in fig. 6, the central magnetic path portion 42 and the side magnetic path portion 43 of the magnetic circuit 4 are both disposed on the side of the yoke 44 facing the diaphragm 31, and the central magnetic path portion 42 and the side magnetic path portion 43 are disposed at a distance to define a magnetic gap.

It will be appreciated that the side magnetic path portion 43 may be an annular structure disposed around the central magnetic path portion 42; alternatively, the side magnetic path portion 43 includes a plurality of side magnetic path portions, which are spaced apart from each other and are disposed around the central magnetic path portion 42 such that each side magnetic path portion is spaced apart from the central magnetic path portion 42 to define a magnetic gap, which is not limited herein.

In the present embodiment, the central magnetic circuit portion 42 includes a central magnet and a central washer, the central magnet and the central washer may be plate-shaped structures, and the shape and the structure of the central magnet and the shape and the structure of the central washer are the same, which is not limited herein. The side magnetic circuit portion 43 includes a side magnet and a side washer, the side magnet and the side washer may be selected from a ring structure or a plurality of plate structures, and the shape and structure of the side magnet and the side washer are the same or different, and are not limited herein.

It can be understood that the edge portion of the diaphragm 31 is fixed to the side magnetic circuit portion 43 to define an acoustic cavity, the air vent is provided in the side magnetic circuit portion 43 or the magnetic yoke 44, and the metal separation net 1 may be an integral structure and covers the air vent of the sound generating unit 100. Of course, the metal separation net 1 includes a plurality of portions, each of which covers at least one air release opening of the sound generating unit 100, which is not limited herein.

In one embodiment, the metal separation net 1 includes a main body 15 and a folded portion 16, the main body 15 is attached to the magnetic yoke 44, the folded portion 16 is disposed on the outer periphery of the main body 15 and is folded toward a direction close to the magnetic yoke 44 relative to the main body 15, and the folded portion 16 is connected to a sidewall of the magnetic yoke 44.

In the present embodiment, as shown in fig. 1 to 6, the main body 15 of the metal separation net 1 is a plate-shaped structure, the folded edge portion 16 is disposed on the periphery of the main body 15, and the folded edge portion 16 and the main body 15 enclose to form an accommodating groove, in which the magnetic circuit system 4 of the sounding unit 100 is accommodated. It is understood that the body 15 is attached to the yoke 44, and the folded portion 16 is connected to a side wall of the yoke 44 or the magnetic path portion 43, which is not limited herein.

In one embodiment, the main body 15 has a long side portion 151 and a short side portion 152 connected in sequence, a corner portion 153 is formed at a portion where the long side portion 151 and the short side portion 152 are connected, and an escape opening 161 is formed at a portion of the flange portion 16 corresponding to at least two diagonally arranged corner portions 153, and the air escape opening is not communicated with the escape opening 161.

In the present embodiment, as shown in fig. 2 to 6, the sounding unit 100 is disposed in a rectangular shape, that is, the magnetic yoke 44 is disposed in a rectangular shape, and in this case, the main body portion 15 of the metal separation net 1 is in a rectangular shape, that is, the main body portion 15 has two long side portions 151 and two short side portions 152, and in this case, the two long side portions 151 and the two short side portions 152 are alternately connected, so that the portions where the long side portions 151 and the short side portions 152 meet form the corner portions 153.

It will be appreciated that the hem portions 16 are connected to the two long side portions 151 and the two short side portions 152 of the main body portion 15, and the corresponding corner portions 153 of the hem portions 16 may be an integral connection structure; alternatively, as shown in fig. 2 to 6, the hem portion 16 is provided with an escape opening 161 at a position corresponding to the corner portion 153, and the escape opening 161 may be used to escape a center piece (not shown) of the sound generating unit 100. The air release port is not communicated with the avoidance port 161, that is, the avoidance port 161 is not communicated with the sound cavity, so that sound absorption particles can be prevented from entering the sound cavity from the avoidance port 161.

Alternatively, portions of the hem portion 16 corresponding to the at least two diagonally disposed corner portions 153 are provided with escape openings 161, and the air escape openings do not communicate with the escape openings 161. Of course, in other embodiments, the positions of the folding edge portions 16 corresponding to the corner portions 153 of the main body portion 15 are provided with the avoiding openings 161, which is not limited herein.

In one embodiment, as shown in fig. 4-6, the main body 15 has an opening 154 opposite the magnetic conductive yoke 44, and the relief opening is not in communication with the opening 154. It will be appreciated that, with this arrangement, the open opening 154 and the magnetic yoke 44 can be used to achieve a position-limiting and positioning fit; on the other hand, the cost of the metal separation net 1 can be effectively saved.

In one embodiment, as shown in fig. 3, the hem portion 16 is provided with glue notches 162 distributed along the circumferential direction of the main body portion 15, and the air vents are not communicated with the glue notches 162. It can be understood that, by providing the glue notch 162, the glue connection between the folded portion 16 and the magnetic yoke 44 and/or the side magnetic circuit portion 43 of the magnetic circuit 4 in the sound-generating unit 100 or the housing 2 is facilitated, and the installation stability is improved.

In one embodiment, the sound generating unit 100 further includes a housing 2, the vibration system 3 and the magnetic circuit system 4 are fixed to the housing 2, and an edge portion of the diaphragm 31 is fixed to the housing 2 to define a sound cavity.

As shown in fig. 1 to 6, in the present embodiment, by providing the casing 2, the magnetic circuit system 4, the vibration system 3, the metal isolation net 1 and other components of the sound generating unit 100 can be fixed and protected by the casing 2, and the structure of the casing 2 may have structures such as a casing, a box, a mounting case, a mounting bracket, etc. which are used as cavities, and is not limited herein. It can be understood that, when the housing 2 is a metal member, the magnetic circuit system 4 and the housing 2 are fixed by adhesion. In another embodiment, when the housing 2 is formed by plastic injection molding, the edge magnetic conductive plate of the magnetic circuit system 4 is first injection molded in the housing 2 as an insert, and then the other portions are bonded and fixed. Optionally, the housing 2 is a rectangular ring structure.

It can be understood that, by providing the cavity in the housing 2 and disposing the magnetic circuit system 4 in the cavity, the vibration system 3 is disposed opposite to the magnetic circuit system 4 and connected to the housing 2, thereby forming a main body portion of the sounding unit 100. Optionally, the housing 2 is a metal piece.

In one embodiment, the housing 2 is provided with an extension 21 extending outward relative to the magnetic yoke 44, the end of the flange portion 16 away from the main body 15 is provided with a flange portion 17, the flange portion 17 extends horizontally outward relative to the extension 21, and the flange portion 17 is connected to the extension 21.

In the present embodiment, as shown in fig. 5 and 6, an extension portion 21 is provided on the housing 2, and a flanging portion 17 is provided on the flanging portion 16 of the metal separation net 1, so that the flanging portion 17 is connected with the extension portion 21, thereby further improving the connection stability of the metal separation net 1, and the magnetic circuit system 4 is firmly connected to the housing 2 by the metal separation net 1, which is not limited herein.

The utility model further provides a sound module 600, the sound module 600 includes a housing 500 and the sound unit 100, the specific structure of the sound unit 100 refers to the foregoing embodiments, and since the sound module 600 adopts all technical solutions of all the foregoing embodiments, all beneficial effects brought by the technical solutions of the foregoing embodiments are at least achieved, and are not repeated herein.

In this embodiment, a mounting chamber 510 is disposed in the housing 500, the sound generating unit 100 is disposed in the mounting chamber 510 to divide the mounting chamber 510 into a front sound cavity and a rear sound cavity 520, the rear sound cavity 520 is filled with sound absorbing particles, and the housing 500 is further provided with a sound outlet 530 communicated with the front sound cavity.

It is understood that when the sound generating unit 100 is disposed in the installation chamber 510 of the housing 500, the periphery of the sound generating unit 100 is connected to the inner wall of the installation chamber 510 to divide the installation chamber 510 into a front sound chamber and a rear sound chamber 520, and the front sound chamber is communicated with the sound outlet 530 of the housing 500.

In the present embodiment, the side of the diaphragm 31 of the vibration system 3 of the sound generating unit 100, which faces away from the voice coil 32, faces the front sound cavity, and the metal separation net 1 of the sound generating unit 100 faces the rear sound cavity 520. In order to realize the full filling of the sound module 600, the rear sound cavity 520 of the sound module 600 is filled with sound-absorbing particles, which is not limited herein.

It can be understood that the diaphragm 31 is disposed opposite to the sound outlet 530 to form the sound module 600 that emits sound; of course, the diaphragm 31 is not disposed opposite to the sound outlet 530 to form the side-emitting sound module 600, which is not limited herein.

As shown in fig. 13, the present invention further provides a sound production module 600, where the sound production module 600 includes a housing 500, a sound production unit 100, and a metal isolation net 1, where an installation cavity 510 is disposed in the housing 500, the sound production unit 100 is disposed in the installation cavity 510 to separate the installation cavity 510 into a front sound cavity and a rear sound cavity 520, the housing 500 is further provided with a sound outlet 530 communicated with the front sound cavity, the metal isolation net 1 is disposed in the installation cavity 510, the metal isolation net 1 is matched with the housing 500 to separate the rear sound cavity 520 into an installation cavity 521 and a filling cavity 522, the sound production unit 100 is disposed in the installation cavity 521, and sound absorption particles are filled in the filling cavity 522.

In this embodiment, the metal separation net 1 includes a plurality of first metal wires 11 and a plurality of second metal wires 12 which are woven in a staggered manner, the plurality of first metal wires 11 and the plurality of second metal wires 12 are woven in a staggered manner to form the ventilation holes 13, and an included angle formed by the first metal wires 11 and the second metal wires 12 and an outer edge 147 of the metal separation net 1 is greater than 0 ° and smaller than 90 °.

It can be understood that, through setting up metal separation net 1 in the installation cavity 510 of shell 500 to be located back sound cavity 520, metal separation net 1 cooperates with shell 500 and separates into installation cavity 521 and filling cavity 522 with back sound cavity 520, so makes sound production monomer 100 be located installation cavity 521, and the filling has the sound granule of inhaling in the filling cavity 522, thereby utilizes metal separation net 1 effectively to avoid inhaling in sound granule etc. gets into installation cavity 521, and enters into the interior performance that influences sound production monomer 100 of sound production monomer 100.

By arranging the metal separation net 1 as a plurality of first metal wires 11 and a plurality of second metal wires 12 which are interlaced, so that the plurality of first wires 11 and the plurality of second wires 12 are interlaced to form the airing holes 13, thereby realizing the ventilation function by utilizing the ventilation holes 13, setting the included angle formed by the first metal wire 11, the second metal wire 12 and the outer edge 147 of the metal separation net 1 to be more than 0 degree and less than 90 degrees, the braiding force between the first wires 11 and the second wires 12 can thus be increased by the angle formed by the first wires 11 and the second wires 12 and the outer edge 147 of the metal separation net 1, the first metal wire 11 or the second metal wire 12 positioned at the outer edge 147 can be prevented from falling off, thereby effectively avoiding the problem of wire falling of the metal separation net 1, the metal isolation net 1 is applied to the sound production module 600, and can greatly improve the product yield of the module.

Of course, in order to further avoid the problem of wire drop of the metal separation net 1, the first wires 11 and the second wires 12 of the metal separation net 1 are interwoven at the edge portion of the metal separation net 1 to form the overlapped region 14, and the overlapped region 14 is pressed into the rolling part 143 by pressure in the direction from the first surface to the second surface. Therefore, the overlapped area 14 is pressed into the rolling part 143 by the pressure from the first surface to the second surface, so that the rolling part 143 can be used for preventing the metal wires in the overlapped area at the edge of the metal isolation net 1 from scattering or dispersing, thereby effectively avoiding the problem that the metal wires fall off the metal isolation net 1, and the metal isolation net 1 is applied to the sound module 600, so that the product yield of the sound module 600 can be effectively improved.

It can be understood that the structure of the metal separation net 1 is the same as that of the metal separation net 1 in the above embodiment, and details are not described herein.

In one embodiment, as shown in fig. 10, 11 and 13, the metal separator net 1 includes a bottom 181 and a side 182 disposed around the periphery of the bottom 181, the side 182 and the bottom 181 enclose a groove 183, and an end edge of the side 182 away from the bottom 181 is subjected to pressure pressing to form the rolled portion 143, which is not limited herein.

In this embodiment, the metal separation net 1 is disposed in the installation cavity 510, and the groove 183 of the metal separation net 1 faces the installation cavity 521 or the filling cavity 522. It is understood that the housing 500 includes a first housing and a second housing, and the first housing and the second housing of the housing 500 are detachably connected and enclose the mounting chamber 510, which is not limited herein.

It can be understood that the metal separation net 1 may cover the sound generating unit 100, and at this time, a part of the sound generating unit 100 is accommodated in the groove 183 of the metal separation net 1, so that the bottom 181 and the side 182 of the metal separation net 1 and a part of the inner wall of the first casing and the second casing of the housing 500 enclose to form the filling cavity 522, and thus the filling cavity 522 is used for filling sound absorbing particles, so that the sound absorbing particles in the filling cavity 522 can be effectively prevented from entering the sound generating unit 100 by using the metal separation net 1.

Of course, the metal separation net 1 may also divide the installation cavity 510 of the housing 500 into two parts, for example, the installation cavity 510 is divided along the length direction or the height direction of the housing 500, and the groove 183 of the metal separation net 1 faces the installation cavity 521 or the filling cavity 522, so that the installation cavity 510 of the housing 500 is formed by the installation cavity 521 and the filling cavity 522 located at two sides of the metal separation net 1 (i.e., the bottom 181 of the metal separation net 1), as shown in fig. 13, at this time, the installation cavity 521 is communicated with the sound outlet 530 for installing and fixing the sound generating unit 100, and the filling cavity 522 is used for filling and attracting particles.

It can be understood that thereby the virtual sound chamber of sound granule formation is acceptd or is filled to filling chamber 522 for sound that sound production monomer 100 produced gets into filling chamber 522 after through metal separation net 1, inhales the sound granule and can adsorb and desorption air current, realizes increasing the effect of virtual back cavity volume from this, is used for reducing the resonant frequency of sound production module 600, improves the audio performance of sound production module 600, especially low frequency acoustic performance.

In the embodiment, the metal isolation net 1 is formed by weaving metal wires, so that the metal isolation net 1 is uniform in thickness, the occupied space of a traditional plug-in isolation net cloth is smaller, the whole metal isolation net 1 can be formed in a punch mode and is not affected by the minimum width of die cutting and cutting, the whole metal isolation net 1 is formed, and the metal isolation net is convenient to process and easy to form; meanwhile, the metal isolation net 1 can deform according to a required structure, and the traditional isolation net cloth (such as PET net cloth) cannot deform, so that the metal isolation net 1 is less restricted by space, has diversity change and is suitable for more spaces; and metal separation net 1 weaves through the wire and forms for metal separation net 1's overall structure compares in traditional isolation screen cloth (for example PET material screen cloth), and the gas permeability is better, wholly has the bleeder vent, and acoustic performance promotes the degree higher, and the pliability is better, can bend at will, changes the direction, and the associativity is higher.

It will be appreciated that the bottom part 181 and the side part 182 of the metal separation net 1 may alternatively be of an integrally formed structure. Metal separator mesh 1 may be stamped and drawn to form bottom 181, side 182, and recess 183 bounded by bottom 181 and side 182. In one embodiment, the metal separation net 1 is in glue tight connection with the inner wall of the installation chamber 510 through the side portion 182.

In one embodiment, the metal isolation net 1 is horizontally laid in the rear acoustic cavity 520, and the outer circumference of the metal isolation net 1 is connected with the inner circumferential wall of the installation cavity 510.

It can be understood that when the metal separation net 1 is covered on the sound generating unit 100, the end of the side part 182 of the metal separation net 1 far from the bottom part 181 is connected with the inner wall of the installation chamber 510 of the housing 500 by gluing and sealing. When the metal separation net 1 integrally divides the installation chamber 510 of the case 500 into two, the side surface of the side portion 182 of the metal separation net 1 is connected with the inner wall of the installation chamber 510 of the case 500 by adhesive sealing. By such an arrangement, the connection stability and the sealing performance of the metal separation net 1 and the housing 500 can be improved.

As shown in fig. 10 and 11, the bottom 181 of the metal separation net 1 is provided with the reinforcing ribs 19, so that the structural strength of the bottom 181 of the metal separation net 1 can be further enhanced. Alternatively, the reinforcing rib 19 is formed with a convex structure 191 in the width direction of the bottom part 181, that is, the reinforcing rib 19 is formed by recessing the side of the bottom part 181 opposite to the groove 183 toward the groove 183, and the bottom wall of the groove 183 is protruded inwards to form the convex structure 191, which is not limited herein.

In one embodiment, as shown in fig. 13, the metal separation net 1 is vertically inserted into the rear acoustic cavity 520, and the top and bottom 181 of the metal separation net 1 are respectively connected with the inner peripheral wall of the housing 500.

In this embodiment, as shown in fig. 13, the housing 500 is provided with two limiting grooves 501 which are oppositely arranged, two ends of the metal separation net 1 are respectively limited in the two limiting grooves 501 to divide the installation chamber 510 into a filling cavity 522 and an installation cavity 521, and the housing 500 is further provided with an inner support table which is located in the installation cavity 521, so that the sound generating unit 100 is fixed and supported by the support table, which is not limited herein.

It can be understood that the two limiting grooves 501 are oppositely arranged, and the connecting line of the two limiting grooves 501 divides the length direction of the housing 500, as shown in fig. 13, the two limiting grooves 501 which are oppositely arranged are further arranged on the side wall of the mounting chamber 510 adjacent to the supporting platform, the limiting grooves 501 extend along the side wall of the mounting chamber 510 of the first housing, and the positioning groove is arranged on the second housing corresponding to each limiting groove 501, so that the two ends of the metal separation net 1 are respectively limited in the two limiting grooves 501 and the two positioning grooves, and at this time, the side part 182 of the metal separation net 1, which is opposite to the bottom wall of the mounting chamber 510 of the second housing and the first housing, is hermetically connected with the second housing and the first housing, so as to divide the mounting chamber 510 into the filling cavity 522 and the mounting cavity 521.

Of course, in other embodiments, the limiting groove 501 may be disposed on the bottom wall of the mounting chamber 510 of the first housing, or may be disposed on two side walls of the mounting chamber 510 of the first housing, and the limiting groove 501 may also be disposed on the bottom wall and the side walls of the mounting chamber 510 of the first housing, respectively, which is not limited herein.

The utility model further provides a processing technology of the metal isolation net 1, the specific structure of the metal isolation net 1 refers to the foregoing embodiments, and the processing technology adopts all technical solutions of all the foregoing embodiments, so that the processing technology at least has all beneficial effects brought by the technical solutions of the foregoing embodiments, and details are not repeated here.

The processing technology of the metal separation net 1 comprises the following steps: the first metal wires 11 and the second metal wires 12 are obliquely arranged and woven into metal woven mesh cloth, and then the edge of the woven metal woven mesh cloth is cut to obtain the formed metal isolation net 1.

Of course, in order to form the edge of the metal separator net 1 into the rolled portion 143, as shown in fig. 12, the steps of the processing process of the metal separator net 1 include:

providing a first tool 700 and a second tool 800, wherein the first tool 700 is provided with a first protrusion 710, and the second tool 800 is provided with a containing groove 810 corresponding to the first protrusion 710;

laying the woven metal woven mesh cloth on the first tool 700 and the first protrusion 710;

placing the second fixture 800 in the first fixture 700, so that the first protrusion 710 and the metal mesh grid extend into the accommodating groove 810;

and extruding the second tooling 800, extruding the metal woven mesh to form a bottom part 181 (or a main body part 15) and a side part 182 (or a folding part 16) arranged around the bottom part 181 (or the main body part 15), and pinching off one end of the side part 182 (or the folding part 16) far away from the bottom part 181 (or the main body part 15), so that one end of the side part 15 (or the folding part 16) far away from the bottom part 181 (or the main body part 15), namely the overlapping area 14 is pressed to form a rolled part 143 by pressure in the direction from the first surface to the second surface, thereby obtaining the metal separation mesh 1.

It can be understood that, firstly, a woven metal mesh formed by interweaving a plurality of first metal wires 11 and a plurality of second metal wires 12 is laid on the first tooling 700, and the second tooling 800 and the first tooling 700 are used for matching to roll the overlapped area 14 at the edge part of the woven metal mesh, the overlapped area 14 is pressed by pressure to form the rolled part 143, so that the rolled part 143 comprises a first rolled plane 144 formed on the first metal wire 11 and a second rolled plane 145 formed on the second metal wire 12 or the first rolled plane 144 and the second rolled plane 145 extend to form an integrally arranged rolled combined plane 146. And then, cutting the first rolling part 144 and the second rolling part 145 by using a second tool 800 and a first tool 700 to obtain the formed metal separation net 1.

It should be noted that after the overlapped area 14 is pressed into the rolling part 143 by the pressure from the first surface to the second surface, a third tool (not shown) may be used to cut the edge of the metal woven mesh to obtain the metal separation mesh 1. That is, the formation of the rolled portion 143 and the cutting of the edge portion may be performed by the same tool set, or may be performed by combining two tool sets.

The utility model further provides an electronic device, which includes the sound production module 600. The specific structure of the sound module 600 refers to the foregoing embodiments, and since the electronic device adopts all the technical solutions of all the foregoing embodiments, at least all the beneficial effects brought by the technical solutions of the foregoing embodiments are achieved, and no further description is given here.

The above description is only an alternative embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A sounding monomer is characterized in that the sounding monomer is provided with a sound cavity and an air leakage opening used for communicating the sound cavity with an external environment, the sounding monomer comprises a metal isolation net, the metal isolation net covers the air leakage opening, the metal isolation net comprises a plurality of first metal wires and a plurality of second metal wires which are woven in a staggered mode, and the first metal wires and the second metal wires are woven in a staggered mode to form air holes;

2. The sound generating unit according to claim 1, wherein the first and second wires form an angle of 45 ° with the outer edge of the metal spacer mesh.

3. The sounding monomer according to claim 1, further comprising a vibration system and a magnetic circuit system, wherein the vibration system comprises a diaphragm and a voice coil, the magnetic circuit system has a magnetic gap, and one end of the voice coil is connected to the diaphragm;

4. The sounding unit according to claim 3, wherein the magnetic circuit system comprises a central magnetic circuit portion, a side magnetic circuit portion and a magnetic yoke, the central magnetic circuit portion and the side magnetic circuit portion are disposed on the magnetic yoke and spaced apart from each other to define the magnetic gap, the side magnetic circuit portion is disposed on the periphery of the central magnetic circuit portion, the edge portion of the diaphragm is fixed on the side magnetic circuit portion to define the acoustic cavity, and the air release opening is disposed on the side magnetic circuit portion or the magnetic yoke.

5. The sounding unit according to claim 4, wherein the metal isolation net includes a main body and a folded edge, the main body is attached to the magnetic yoke, the folded edge is disposed on an outer periphery of the main body and is bent toward a direction close to the magnetic yoke relative to the main body, and the folded edge is connected to a sidewall of the magnetic yoke.

6. The single sound generating body as claimed in claim 5, wherein the main body has a long side portion and a short side portion connected in sequence, the long side portion and the portion where the short side portion meets form a corner portion, the corner portion is provided with an escape opening corresponding to the corner portion provided with at least two opposite corners, and the air escape opening is not communicated with the escape opening.

7. The sound generating unit as claimed in claim 5, wherein the main body portion has an open opening opposite to the magnetic yoke, and the air release opening is not communicated with the open opening.

8. The sounding unit according to claim 5, wherein the edge folding portion is provided with a glue notch distributed along the circumferential direction of the main body, and the air release opening is not communicated with the glue notch.

9. The sound generating unit according to claim 5, further comprising a housing, wherein the vibration system and the magnetic circuit system are fixed to the housing, and an edge portion of the diaphragm is fixed to the housing to define the sound cavity.

10. The sound generating unit as claimed in claim 9, wherein the housing has an extension portion extending outwardly from the yoke, and a flange portion is provided at an end of the flange portion remote from the main body portion, the flange portion extending horizontally outwardly from the extension portion, and the flange portion is connected to the extension portion.

11. The utility model provides a sound production module, its characterized in that, sound production module includes:

the sounding unit as claimed in any one of claims 1 to 10, wherein the sounding unit is disposed in the installation cavity to separate the installation cavity into a front sound cavity and a rear sound cavity, the rear sound cavity is filled with sound-absorbing particles, and the housing further has a sound outlet communicating with the front sound cavity.

12. The utility model provides a sound production module, its characterized in that, sound production module includes:

13. The acoustic module of claim 12, wherein the metal separation net is vertically inserted into the rear acoustic cavity, and the top and bottom of the metal separation net are connected to the inner peripheral wall of the housing, respectively.

14. The acoustic module of claim 12 wherein the metal isolation mesh is laid horizontally within the rear acoustic cavity, and the outer perimeter of the metal isolation mesh is connected to the inner perimeter wall of the mounting cavity.

15. An electronic device, characterized in that the electronic device comprises a sound emitting module according to claim 11 or any one of claims 12 to 14.