CN217037390U - Sound production device and electronic device - Google Patents

Abstract

The utility model discloses a sounding device and an electronic device, wherein the sounding device comprises: the shell comprises a first shell and a second shell, and the first shell and the second shell are matched to form an inner cavity; the sounding single body is contained in the inner cavity and matched with the shell to limit a front sounding cavity and a rear sounding cavity; ventilative isolation screen panel accepts in back sound intracavity and from the back sound intracavity isolation filling chamber, and the filling intracavity is filled has the sound granule of inhaling, and first casing is provided with the fixed column, and ventilative isolation screen panel's edge extends towards first casing, and ventilative isolation screen panel's edge offer with fixed column complex fixed orifices. According to the utility model, the edge of the breathable isolation mesh enclosure can be assembled with the first shell through the matching of the fixing column and the fixing hole, the structure of the first shell is simplified, the first shell is easier to manufacture, the space waste is avoided, the equivalent volume of the rear sound cavity is effectively improved, the area of the breathable isolation mesh enclosure is increased, and the acoustic performance of the loudspeaker is improved.

Description

Sound production device and electronic device

Technical Field

The utility model relates to the technical field of electroacoustic, in particular to a sounding device and an electronic device.

Background

A sound generating device, such as a speaker, is a transducer device for converting an electrical signal into an acoustic signal, and is widely used in electronic devices such as mobile phones, computers, and earphones. With the rapid development of electronic devices, higher requirements are put forward on the performance of speakers, and larger rear sound cavities and better performance are required, but the thickness of speakers of ultra-thin mobile phones, especially of foldable models, is generally designed to be thinner, so that the space expansion and height of the rear sound cavities are limited, and even compression is required.

The conventional loudspeaker usually adopts a mode of filling sound-absorbing particles by hot melting or injection molding mesh cloth, and the equivalent volume of a rear sound cavity is improved under the condition of not enlarging the physical volume of the sound cavity and designing the minimum height space. However, adopt the mode that the sound granule was inhaled in the filling of hot melt or the screen cloth of moulding plastics to need design the brace table that supports the screen cloth usually in the speaker, the brace table not only shaping is complicated, but also can cause the space extravagant, and the equivalent volume in back sound chamber improves limitedly, makes the ventilation area of screen cloth receive the limitation simultaneously, and the gas permeability is poor, leads to the acoustic performance of speaker to promote not enough, can't obtain more excellent acoustic effect.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide a sounding device and an electronic device, and aims to solve the technical problems that in the prior art, a sounding device is complicated in support table forming and cannot obtain a better acoustic effect by adopting a mode of filling sound-absorbing particles by using hot melting or injection molding mesh cloth.

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

the shell comprises a first shell and a second shell, and the first shell and the second shell are matched to form an inner cavity;

the sounding single body is contained in the inner cavity and matched with the shell to define a front sounding cavity and a rear sounding cavity;

the air-permeable isolation mesh enclosure is contained in the rear sound cavity and separates out of the filling cavity from the rear sound cavity, sound absorption particles are filled in the filling cavity, the first shell is provided with a fixing column, the edge of the air-permeable isolation mesh enclosure extends towards the first shell, and a fixing hole matched with the fixing column is formed in the edge of the air-permeable isolation mesh enclosure.

Preferably, a flange consistent with the extending direction of the fixing column is formed on the hole wall of the fixing hole, and the flange is sleeved outside the fixing column.

Preferably, the flanging is of a split structure and comprises a plurality of sub-flanging edges which are arranged along the circumferential direction of the hole wall of the fixing hole at intervals.

Preferably, the flange is of an integrated structure, extends along the hole wall of the fixing hole and encloses an annular closed structure or an annular non-closed structure.

Preferably, the breathable isolation net cover comprises a cover body and a folded edge, the folded edge is bent towards the first shell from one side edge of the cover body towards the sounding monomer, the fixed end of the cover body and the folded edge are arranged oppositely along the length direction of the shell, the fixed end is provided with the fixed hole to be matched with the fixed column, and one end, far away from the cover body, of the folded edge is fixedly connected with the first shell.

Preferably, one end of the folded edge, which is far away from the cover body, forms an abutting edge which is bent towards the sounding single body, and the abutting edge abuts against and is in sealing fit with the top wall of the first shell.

Preferably, the abutting edge is provided with the fixing hole.

Preferably, along the width direction of the outer shell, the cover body has two opposite side edges, and the two side edges are respectively connected with the side wall of the first shell in a sealing manner.

Preferably, the first housing includes a top and a first housing wall surrounding the top, the housing body is disposed opposite to the top, the first housing wall includes a body and an extension, the extension extends inward relative to the body, the extension is provided with the fixing post, and the fixing end is fixed to the extension.

Preferably, the second housing is connected to the first housing wall; the cover body is arranged in a protruding mode towards the direction of the second shell, and/or the folded edge is arranged in a protruding mode towards the direction of the sounding monomer.

Preferably, the breathable isolation net cover is a metal woven net or a metal etched net.

The utility model also provides an electronic device, which comprises a casing and the sounding device accommodated in the casing.

According to the technical scheme, the breathable isolation mesh enclosure can play a role in blocking between the filling cavity and the sounding single body, can effectively prevent sound-absorbing particles in the filling cavity from entering leakage holes of the sounding single body, and guarantees normal work of the sounding single body. And, the edge of ventilative isolation screen panel extends towards first casing to can realize the assembly between ventilative isolation screen panel and the first casing through the cooperation of fixed column and fixed orifices, need not to take shape out a brace table on first casing, simplify the structure of first casing, and make first casing change the preparation, do not have brace table occupation space simultaneously, avoid the space extravagant, and effectively improve the equivalent volume in back vocal cavity. In addition, after a support table is omitted, the edge of the breathable isolation mesh enclosure can extend to the first shell, the area of the breathable isolation mesh enclosure is increased, the breathability is good, the acoustic performance of the loudspeaker is effectively improved, and a better acoustic effect is obtained.

Drawings

In order to more clearly illustrate the embodiments or technical solutions of the present invention, the drawings used in the embodiments or technical solutions of 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 an exploded view of a sound device according to an embodiment of the present invention;

FIG. 2 is an enlarged view of area A of FIG. 1;

fig. 3 is a schematic cross-sectional view of a sound device according to an embodiment of the present invention.

The reference numbers illustrate:

the implementation, functional features and advantages of the present invention will be further described 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, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used for explaining the relative position relationship between the components, the motion situation, and the like under a certain posture (as shown in the drawing), and if the certain posture is changed, the directional indications are changed accordingly.

In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or to implicitly indicate 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 description of the orientations of "up", "down", "front", "back", "left", "right", etc. in the present invention is based on the orientation shown in fig. 1 and is only used to explain the relative positional relationship between the components in the orientation shown in fig. 1, and if the specific orientation is changed, the directional indication is changed accordingly.

The utility model provides a sounding device.

As shown in fig. 1 to 3, in an embodiment, the sound generating device 100 includes a housing 10, a sound generating unit 20, and a ventilation screen 30, wherein the housing 10 includes a first shell 11 and a second shell 12, and the first shell 11 and the second shell 12 cooperate to form an inner cavity 13; the sounding single body 20 is accommodated in the inner cavity 13, and the sounding single body 20 is matched with the shell 10 to define a front sound cavity 14 and a rear sound cavity 15; the breathable isolation mesh enclosure 30 is accommodated in the rear sound cavity 15 and isolates the filling cavity 16 from the rear sound cavity 15, sound absorption particles are filled in the filling cavity 16, the first shell 11 is provided with a fixing column 111, the edge of the breathable isolation mesh enclosure 30 extends towards the first shell 11, and the edge of the breathable isolation mesh enclosure 30 is provided with a fixing hole 33 matched with the fixing column 111.

The sound generating device 100 of the present invention can be applied to an electronic device, such as a mobile phone, a computer, and an earphone, the sound generating device 100 can be a speaker, the sound generating unit 20 of the sound generating device 100 is a speaker unit, and the sound generating device 100 of the present embodiment is described by taking a speaker applied to a mobile phone as an example. It can be understood that the sound generating unit 20 is conducted with the outside through the circuit board 40.

Specifically, as shown in fig. 1 to 3, the first housing 11 is an upper housing, the second housing 12 is a lower housing, and the first housing 11 and the second housing 12 are vertically fitted to define a front acoustic chamber 14 and a rear acoustic chamber 15. Specifically, the second housing 12 covers the bottom of the first housing 11 and is in sealing fit with the first housing 11, so that the rear sound cavity 15 is effectively sealed, a waterproof function is achieved, a waterproof effect is improved, and normal use of the sound generating device 100 is ensured.

It can be understood that the sounding unit 20 has a leakage hole for communicating the rear sound cavity 15 with the external environment, and the pressure between the front sound cavity 14 and the rear sound cavity 15 can be balanced by the leakage hole, so as to reduce the vibration resistance of the vibration system of the sounding device 100 and improve the acoustic performance of the sounding device 100.

In the technical solution of the present invention, the sound generating device 100 further includes a breathable isolation mesh enclosure 30, and the breathable isolation mesh enclosure 30 is accommodated in the rear sound cavity 15. As shown in fig. 1 to 3, in an embodiment, an edge of the air-permeable isolation mesh enclosure 30 extends toward the first housing 11, specifically, an edge of one side 312 of the air-permeable isolation mesh enclosure 30 extends toward a top wall of the first housing 11, and the remaining edges extend toward a side wall of the first housing 11, the top wall and the side wall of the first housing 11 are provided with fixing posts 111, fixing holes 33 are opened at positions of the air-permeable isolation mesh enclosure 30 corresponding to the fixing posts 111, and the fixing posts 111 are matched with the corresponding fixing holes 33, so as to assemble the air-permeable isolation mesh enclosure 30 with the first housing 11. The air-permeable isolation mesh enclosure 30 assembled on the first housing 11 isolates the filling cavity 16 from the rear sound cavity 15, and the filling cavity 16 is filled with sound-absorbing particles.

In the sound generating device 100 of the present invention, the air permeable isolating mesh enclosure 30 can block the space between the filling cavity 16 and the sound generating unit 20, so as to effectively block the sound absorbing particles in the filling cavity 16 from entering the leakage holes of the sound generating unit 20, thereby ensuring the normal operation of the sound generating unit 20. And, the edge of ventilative isolation screen panel 30 extends towards first casing 11 to can realize the assembly between ventilative isolation screen panel 30 and the first casing 11 through the cooperation of fixed column 111 and fixed orifices 33, need not to form out a brace table on first casing 11, simplify the structure of first casing 11, and make first casing 11 change the preparation, do not have brace table occupation space simultaneously, avoid the space extravagant, and effectively improve the equivalent volume in back acoustic cavity 15. In addition, after a support table is omitted, the edge of the air-permeable isolation mesh enclosure 30 can extend to the first shell 11, so that the area of the air-permeable isolation mesh enclosure 30 is increased, the air permeability is good, the acoustic performance of the loudspeaker is effectively improved, and a better acoustic effect is obtained.

In one embodiment, a flange 34 is formed on the hole wall of the fixing hole 33 and extends in the same direction as the fixing post 111, and the flange 34 is sleeved outside the fixing post 111. As shown in fig. 1 to fig. 3, the fixing post 111 extends from the first casing 11 to the second casing 12, that is, the fixing post 111 extends from top to bottom, a flange 34 is formed on a hole wall of the fixing hole 33, the flange 34 is consistent with the extending direction of the fixing post 111, that is, the flange 34 extends from the hole wall of the fixing hole 33 to bottom, and the flange 34 is sleeved outside the fixing post 111. The flange 34 is formed on the hole wall of the fixing hole 33, so that on one hand, the contact area between the fixing column 111 and the air-permeable isolating net cover 30 is increased, the assembling stability between the air-permeable isolating net cover 30 and the first shell 11 is improved, the assembling tightness between the air-permeable isolating net cover 30 and the first shell 11 can be ensured, and the acoustic performance of the loudspeaker is improved; on the other hand, the assembly between the air-permeable isolation net cover 30 and the fixing column 111 is facilitated, and the operation is easy.

In an embodiment, the flange 34 is a split structure, and the flange 34 includes a plurality of sub-flanges 35, and the sub-flanges 35 are circumferentially spaced along the hole wall of the fixing hole 33. It can be understood that when the fixing post 111 is assembled with the fixing hole 33, the plurality of sub-flanges 35 can be elastically deformed, so that the fixing hole 33 and the fixing post 111 are tightly fitted together. For example, as shown in fig. 2, the flange 34 includes two sub-flanges 35, the two sub-flanges 35 are circumferentially spaced along the hole wall of the fixing hole 33, and specifically, the two sub-flanges 35 may be oppositely disposed. The flange 34 is provided with a split structure consisting of two sub-flanges 35 arranged at intervals, so that the forming and manufacturing are facilitated.

In another embodiment, the flange 34 is a one-piece structure, and the flange 34 extends along the hole wall of the fixing hole 33 and encloses an annular closed structure. It can be understood that the flange 34 may be an annular flange 34, and the flange 34 encloses an annular closed structure, so that the side walls of the fixing posts 111 can be in contact with the flange 34, and the sealing performance of the fixing posts 111 in cooperation with the flange 34 is improved, thereby improving the acoustic performance of the speaker.

In yet another embodiment, the flange 34 is a one-piece structure, and the flange 34 extends along the hole wall of the fixing hole 33 and encloses an annular non-closed structure. It can be understood that the flange 34 may be an annular flange 34, and the flange is enclosed to form an annular non-closed structure, that is, the hole wall of the fixing hole 33 may be open except for the area corresponding to the flange 34, which is beneficial for the fixing post 111 to smoothly pass through the fixing hole 33, and improves the smoothness of the assembly of the fixing post 111 and the fixing hole 33.

It should be noted that, in the sound generating device 100 of the present invention, the number of the fixing posts 111 is multiple, and the number of the fixing holes 33 is the same as the number of the fixing posts 111 and matches with the number of the fixing posts 111 in a one-to-one correspondence manner. The flanges 34 of the plurality of fixing holes 33 may adopt at least one of the above-described embodiments. The number of the fixing posts 111 and the structure of the turned-over edge 34 of the present invention can be flexibly set according to actual needs, which is not limited by the present invention.

In an embodiment, the air permeable separating mesh enclosure 30 includes an enclosure body 31 and a folded edge 32, the folded edge 32 is bent from an edge of one side 312 of the enclosure body 31 facing the sound generating unit 20 toward the first housing 11, along a length direction (left and right directions as shown in fig. 1) of the housing 10, a fixed end 311 of the enclosure body 31 is disposed opposite to the folded edge 32, the fixed end 311 is provided with a fixing hole 33 to cooperate with the fixing post 111, and one end of the folded edge 32 away from the enclosure body 31 is fixedly connected to the first housing 11.

As shown in fig. 1 and fig. 3, the length direction of the outer shell 10 is the left-right direction, the fixed end 311 and the folded edge 32 of the cover body 31 are oppositely arranged left and right, the fixed end 311 of the cover body 31 is provided with a fixing hole 33 which can be matched with the fixing column 111 of the first shell 11 to be assembled on the side wall of the first shell 11, the folded edge 32 is bent upwards from the edge 312 of the right side of the cover body 31, and the upper end of the folded edge 32 is fixedly connected with the first shell 11 to be assembled on the top wall of the first shell 11, so as to assemble the breathable isolation mesh enclosure 30 and the first shell 11. The air-permeable isolation net cover 30 has a reasonable and simple structural design, and is easily assembled with the first housing 11.

Further, an abutting edge 321 bent toward the sounding unit 20 is formed at one end of the folded edge 32 away from the cover body 31, and the abutting edge 321 abuts against and is in sealing fit with the top wall of the first housing 11. As shown in fig. 1 and 3, the upper end of the folded edge 32 forms an abutting edge 321 which is bent rightwards, and the abutting edge 321 abuts against the top wall of the first housing 11 and is in sealing fit with the top wall of the first housing 11, so that the assembling tightness of the first housing and the top wall of the first housing 11 can be ensured while the assembling between the first housing and the second housing is facilitated, and the acoustic performance of the loudspeaker is improved.

In an embodiment, the abutting edge 321 is provided with a fixing hole 33, and accordingly, the top wall of the first housing 11 is provided with a fixing post 111 which is matched with the fixing hole 33 of the abutting edge 321, so as to realize the assembly between the abutting edge 321 and the first housing 11.

Further, along the width direction (the front-rear direction shown in fig. 1) of the housing 10, the cover body 31 has two opposite sides 312, and the two sides 312 are respectively connected with the side walls of the first housing 11 in a sealing manner. As shown in fig. 1 and 3, the width direction of the housing 10 is the front-back direction, and the cover body 31 has a front side 312 and a back side 312, wherein the front side 312 is connected to the front side wall of the first housing 11 in a sealing manner, and the back side 312 is connected to the back side wall of the first housing 11 in a sealing manner, so that the assembly tightness between the air-permeable isolation mesh enclosure 30 and the first housing 11 is improved while the assembly between the two is realized, and the air-permeable isolation mesh enclosure is simple and reliable. Moreover, the two side edges 312 of the cover body 31 can be directly connected to the side wall of the first housing 11 without a support stand, so as to increase the volume of the filling cavity 16 and the area of the air-permeable isolation mesh cover 30.

In one embodiment, first housing 11 includes a top 112 and a first housing wall 113 surrounding top 112, shell body 31 is disposed opposite top 112, first housing wall 113 includes a body portion 1131 and an extension portion 1132, extension portion 1132 extends inward relative to body portion 1131, fixing post 111 is disposed on extension portion 1132, and fixing end 311 is fixed to extension portion 1132.

As shown in fig. 1, the top 112 and the cover body 31 are disposed opposite to each other, the top 112 is a top wall of the first housing 11, and the first wall 113 is a side wall of the first housing 11. For convenient assembly, the first shell wall 113 includes a body portion 1131 and an extension portion 1132, the extension portion 1132 extends inward relative to the body portion 1131, so that a mounting step is formed between the extension portion 1132 and the body portion 1131, the extension portion 1132 is provided with a fixing post 111 engaged with the fixing hole 33 at the fixing end 311 of the mask body 31, and the fixing end 311 of the mask body 31 can be fixed on the extension portion 1132, specifically, the fixing end 311 of the mask body 31 can be fixed on the mounting step, so as to improve the assembly stability between the mask body 31 and the first shell wall 113, and further improve the assembly stability between the air-permeable isolating mesh enclosure 30 and the first shell 11.

In one embodiment, second housing 12 is connected to first housing wall 113; the cover body 31 is provided to protrude toward the second housing 12, and/or the folded edge 32 is provided to protrude toward the sounding unit 20.

As shown in fig. 1 and 3, the top 112 is disposed opposite to the second housing 12, and in order to increase the volume of the filling cavity 16 and the air-permeable area of the air-permeable isolation mesh enclosure 30, the enclosure body 31 of the air-permeable isolation mesh enclosure 30 is disposed to protrude toward the second housing 12, that is, the enclosure body 31 is disposed to protrude downward. Further, the hem 32 of the breathable isolation mesh enclosure 30 is convexly arranged towards the direction of the sounding single body 20, specifically, the local area of the hem 32 can be bent towards the direction of the sounding single body 20, so that the volume of the filling cavity 16 and the breathable area of the breathable isolation mesh enclosure 30 are further increased, the acoustic performance of the loudspeaker is effectively improved, and a better acoustic effect is obtained.

In one embodiment, the air permeable isolation mesh 30 is a metal woven mesh or a metal etched mesh. The metal woven net or the metal etched net has high strength and good structural stability, does not need the support of a support table, and has good air permeability while playing a role in isolation.

In an embodiment, the first housing 11 defines a filling hole communicating with the rear acoustic cavity 15 and used for filling the rear acoustic cavity 15 with sound-absorbing particles, and the filling hole is covered with a sealing piece 50 for sealing the filling hole. Specifically, the top 112 of the first casing 11 is provided with a filling hole, and the filling hole can be used for filling the rear sound cavity 15 with sound-absorbing particles, so that the sound-absorbing particles can reduce low-frequency distortion and improve the acoustic performance of the sound-generating device 100. Moreover, the plugging sheet 50 is arranged at the filling hole, and the filling hole is plugged by the plugging sheet 50, so that the sound absorption particles are prevented from leaking, and meanwhile, the tightness of the rear sound cavity 15 can be ensured.

In one embodiment, the second housing 12 defines a damping hole communicating with the rear acoustic chamber 15, and the damping hole is covered with a damping plate 60. The rear sound cavity 15 is integrally designed in a closed type and is communicated with the outside only through the damping holes, so that the air pressure in the rear sound cavity 15 is the same as that in the front sound cavity 14, the acoustic performance of the sound production device 100 is improved, and the damping fins 60 cover the damping holes to play a damping role and reduce the noise.

The utility model also provides an electronic device, which comprises a casing and the sound production device 100 accommodated in the casing. The electronic device can be a mobile phone, a computer, an earphone, and the like. The specific structure of the sound generating device 100 in the electronic device refers to the above embodiments, and since the electronic device adopts all technical solutions of all the above embodiments, at least all the beneficial effects brought by the technical solutions of the above embodiments are achieved, and no further description is given here.

The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the technical solutions of the present invention, which are made by using 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 (12)

1. A sound device, comprising:

the shell comprises a first shell and a second shell, and the first shell and the second shell are matched to form an inner cavity;

the sounding single body is contained in the inner cavity and matched with the shell to define a front sounding cavity and a rear sounding cavity;

the air-permeable isolation mesh enclosure is contained in the rear sound cavity and separates out of the filling cavity from the rear sound cavity, sound-absorbing particles are filled in the filling cavity, the first shell is provided with a fixed column, the edge of the air-permeable isolation mesh enclosure extends towards the first shell, and a fixed hole matched with the fixed column is formed in the edge of the air-permeable isolation mesh enclosure.

2. The sounding device as claimed in claim 1, wherein a flange is formed on the wall of the fixing hole and extends in the same direction as the fixing post, and the flange is sleeved outside the fixing post.

3. The sounding device as recited in claim 2, wherein the flange is a split structure, and the flange includes a plurality of sub-flanges, and the sub-flanges are circumferentially spaced along the wall of the fixing hole.

4. The sounding device as recited in claim 2, wherein the flange is a unitary structure, and extends along the hole wall of the fixing hole and defines an annular closed structure or an annular non-closed structure.

5. The sound production device as claimed in any one of claims 1 to 4, wherein the air permeable isolation mesh enclosure comprises an enclosure body and a folded edge, the folded edge is folded from one side edge of the enclosure body facing the sound production unit to the first casing, a fixed end of the enclosure body is arranged opposite to the folded edge along the length direction of the casing, the fixed end is provided with the fixing hole to be matched with the fixing column, and one end of the folded edge far away from the enclosure body is fixedly connected with the first casing.

6. The sound production device of claim 5, wherein an end of the flange remote from the cover body forms an abutment edge that is bent towards the sound production unit, and the abutment edge abuts against and is in sealing engagement with the top wall of the first housing.

7. The speaking device as set forth in claim 6, wherein said abutment edge is provided with said securing aperture.

8. The sound production device of claim 5, wherein the shroud body has two opposing sides along the width of the housing, the two sides being sealingly connected to the respective side walls of the first housing.

9. The sounding device as recited in claim 5 wherein the first housing includes a case top and a first housing wall surrounding the case top, the shroud body being disposed relative to the case top, the first housing wall including a body portion and an extension portion extending inwardly relative to the body portion, the extension portion having the securing post thereon, the securing end being secured to the extension portion.

10. The sounding device of claim 9, wherein the second housing is connected to the first housing wall; the cover body is arranged in a protruding mode towards the direction of the second shell, and/or the folded edge is arranged in a protruding mode towards the direction of the sounding single body.

11. The sounding device according to any of claims 1-4, wherein the air permeable screen is a woven or etched metal mesh.

12. An electronic device, comprising a housing and the sound-producing device of any one of claims 1-11 housed within the housing.

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