CN216057357U

CN216057357U - Speaker module and electronic equipment

Info

Publication number: CN216057357U
Application number: CN202121907950.4U
Authority: CN
Inventors: 王景伟; 李政强; 陈国强
Original assignee: Goertek Inc
Current assignee: Goertek Inc
Priority date: 2021-08-16
Filing date: 2021-08-16
Publication date: 2022-03-15
Anticipated expiration: 2031-08-16

Abstract

The utility model discloses a loudspeaker module and electronic equipment using the loudspeaker module. The loudspeaker module comprises a shell, a loudspeaker single body and a ventilating isolation piece, wherein the shell is provided with an inner cavity, the loudspeaker single body is arranged in the inner cavity, and the inner cavity is separated into a front sound cavity and a rear sound cavity by a loudspeaker single body vibrating diaphragm; the ventilative separator is located the back sound chamber and is separated the sound absorbing chamber from the back sound chamber, and it has the sound absorption granule to fill in the sound absorbing chamber, and wherein, ventilative separator includes the backing sheet and combines the acoustics screen cloth on the backing sheet, and the backing sheet is made by the PC material and contains a plurality of first bleeder vents, and acoustics screen cloth contains a plurality of second bleeder vents, and the aperture of first bleeder vent is for being greater than the aperture of second bleeder vent. The technical scheme of the utility model can improve the acoustic performance of the loudspeaker module.

Description

Speaker module and electronic equipment

Technical Field

The present invention relates to the field of acoustic energy conversion technologies, and in particular, to a speaker module and an electronic device using the same.

Background

With the social and economic development and the upgrading of consumption, consumers have higher requirements on electronic equipment such as mobile phone audio performance indexes, and more mobile phone space is needed for sound cavity design, but the contradiction is that the client side also requires that the mobile phone is as light and thin as possible, the holding hand feeling is improved, and the mobile phone is convenient to carry, so that the expansion of the sound cavity space is limited, and even needs to be compressed.

In order to enlarge the volume of the sound cavity, sound-absorbing particles are generally filled in the sound cavity, and the equivalent volume of the audio rear cavity is improved under the condition that the physical volume of the sound cavity is not enlarged. In order to prevent the sound-absorbing particles from entering the interior of the single body along with the air flowing in the cavity of the module, the existing speaker module is usually provided with a spacer to limit the sound-absorbing particles in a specific area. The mode that sets up that the isolation piece is commonly used is the mode of carriage + screen cloth combination, nevertheless because the cell-phone tends to frivolousization, module Z reduces to the space, and the ventilative area in isolation piece mesh of this kind of mode is not enough to, the carriage hardly produces the different sound chamber spaces of dysmorphism structure removal adaptation, the processing degree of difficulty increase of carriage.

Therefore, it is necessary to provide a structure with simple processing and high production efficiency to solve the above technical problems.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide a loudspeaker module and electronic equipment applying the loudspeaker module, and aims to improve the acoustic performance of the loudspeaker module.

To achieve the above object, an embodiment of the present invention provides a speaker module, which includes:

a housing having an interior cavity;

the loudspeaker single body is arranged in the inner cavity, a vibrating diaphragm of the loudspeaker single body separates the inner cavity into a front sound cavity and a rear sound cavity, and a sound outlet communicated with the front sound cavity is formed in the shell;

the breathable isolating piece is arranged in the rear sound cavity, a sound absorbing cavity is separated from the rear sound cavity, and sound absorbing particles are filled in the sound absorbing cavity; wherein

The air-permeable isolating piece comprises a supporting sheet and an acoustic mesh cloth combined on the supporting sheet, wherein the supporting sheet is made of a PC material, the supporting sheet comprises a plurality of first air-permeable holes, the acoustic mesh cloth comprises a plurality of second air-permeable holes, the hole diameter of each first air-permeable hole is d1, the hole diameter of each second air-permeable hole is d2, and d1 is larger than or equal to d 2.

In one embodiment of the utility model, d1 is more than or equal to 0.2mm and less than or equal to 0.3mm, and d2 is more than or equal to 0.05mm and less than or equal to 0.1 mm.

In an embodiment of the present invention, the acoustic mesh is any one of a non-woven fabric, a nylon woven fabric, a filter paper, a dupont paper, a laminated paper, or a mesh paper.

In an embodiment of the present invention, the support sheet and the acoustic mesh are bonded by adhesive bonding or thermal compression bonding.

In an embodiment of the present invention, a slot is disposed on an inner wall of the housing, and the ventilation isolation member is inserted into the slot.

In an embodiment of the utility model, the breathable isolation piece is arranged at an included angle, the breathable isolation piece forms a bending portion corresponding to the included angle, the slot includes two slots and a middle slot, two ends of the breathable isolation piece are respectively inserted into the two slots, and the bending portion is inserted into the middle slot.

In an embodiment of the present invention, the first casing includes a top wall and a surrounding wall that surrounds the ventilation spacer to form the sound absorbing cavity, two first blocking walls and two second blocking walls are disposed on the top wall and/or the surrounding wall, the two first blocking walls form one of the end slots at an interval, and the two second blocking walls form the other end slot at an interval.

In an embodiment of the present invention, an arc-shaped protrusion is protruded from the top wall, and the middle slot is formed between the protrusion and the surrounding wall.

In an embodiment of the present invention, the housing is further provided with a filling hole for filling the sound-absorbing particles, the speaker module further includes a cover plate, the cover plate covers the filling hole, and the cover plate is detachably connected to the housing.

In order to achieve the above object, an embodiment of the present invention further provides an electronic device, which includes a speaker module, where the speaker module includes:

a housing having an interior cavity;

According to the utility model, the rear sound cavity of the loudspeaker module is internally provided with the breathable isolating piece for isolating the sound absorbing cavity from the rear sound cavity, and the sound absorbing particles are directly filled in the sound absorbing cavity, wherein the breathable isolating piece adopts the supporting piece and the acoustic mesh cloth combined on the supporting piece. The support sheet is made of a PC material, is easy to machine and form, has good fatigue resistance, high strength and high elasticity coefficient, plays a role of supporting the acoustic mesh cloth, is easy to manufacture into different shapes, and can be adapted to more assembly spaces. And, for traditional isolator adopts the setting form that the carriage combines the screen cloth, the backing sheet contains a plurality of first bleeder vents, and the aperture of first bleeder vent is greater than the mesh aperture of acoustics screen cloth, and the ventilative isolator of the form of backing sheet compound acoustics screen cloth has higher ventilative area, further promotes the acoustic performance of speaker.

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 an exploded view of an embodiment of a speaker module according to the present invention;

FIG. 2 is a combined structure view of the air-permeable barrier and the first housing of FIG. 1;

FIG. 3 is a perspective view of the first housing of FIG. 1;

FIG. 4 is a plan view of the speaker module of FIG. 1;

FIG. 5 is a cross-sectional view of the speaker module of FIG. 4 taken along line A-A;

fig. 6 is an exploded view of the breathable barrier of fig. 1.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				100	Loudspeaker module	30	Loudspeaker monomer
10	Outer casing	50	Breathable partition
				20	Rear acoustic cavity	70	Flexible circuit board
11	First shell	13	Second shell
				111	Roof wall	131	Filling hole
1111	First retaining wall	15	Damping
				1113	Second retaining wall	17	Cover plate
1115	Arc-shaped retaining wall	21	First rear cavity
				112	Sound outlet	23	Sound absorbing cavity
113	Enclosure wall	51	Support sheet
				114	End slot	53	Acoustic mesh cloth
115	Damping hole
				116	Middle slot

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 derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope 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.

In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes 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 the description of the present invention, "a number" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

In view of the technical problems mentioned in the background art, the present invention provides a speaker module, which aims to improve the acoustic performance of the speaker module.

It can be understood that the speaker module set provided by the present invention can be applied to electronic devices, and the electronic devices can be, but are not limited to, mobile phones, notebook computers, tablet computers, Personal Digital Assistants (PDAs), e-book readers, MP3 (Moving Picture Experts Group Audio Layer III) players, MP4 (Moving Picture Experts Group Audio Layer IV) players, wearable devices, navigators, handheld game consoles, virtual and real devices, augmented reality devices, and the like.

The following will explain the specific structure of the speaker module set proposed by the present invention in specific embodiments:

as shown in fig. 1 to 3, in an embodiment of the speaker module 100 of the present invention, the speaker module 100 includes a housing 10, a speaker unit 30, and a ventilation spacer 50; the housing 10 has an inner cavity; the single loudspeaker 30 is arranged in the inner cavity, and the vibrating diaphragm of the single loudspeaker divides the inner cavity into a front sound cavity and a rear sound cavity 20; the ventilating partition 50 is arranged in the rear sound cavity 20, the ventilating partition 50 partitions the sound absorbing cavity 23 from the rear sound cavity 20, and sound absorbing particles are filled in the sound absorbing cavity 23; the air-permeable barrier 50 includes a support sheet 51 and an acoustic mesh 53 bonded to the support sheet 51. The support sheet 51 is made of a PC material, the support sheet 51 comprises a plurality of first air vents, the acoustic mesh 53 comprises a plurality of second air vents, the aperture of each first air vent is d1, the aperture of each second air vent is d2, and d1 is larger than or equal to d 2.

PC (polycarbonate) is a high molecular polymer containing carbonate groups in molecular chains, the polycarbonate is tough thermoplastic resin, the PC high molecular weight resin has high toughness, and the flexural modulus of the PC can reach more than 2400 MPa; has high strength and elastic coefficient, high impact strength and wide application temperature range; the fatigue resistance is good. The characteristics of the PC material determine that the support sheet 51 has a supporting function for the acoustic mesh cloth 53, and may be manufactured into various shapes by bending or other processes, so as to be adapted to various different assembly spaces.

In one embodiment, d1 is 0.2 mm-0.3 mm, d2 is 0.05 mm-0.1 mm. The support sheet 51 and the acoustic mesh 53 may have an array of holes or a honeycomb arrangement. When the first vent hole diameter d1 of the support sheet 51 is too large, the PC material is soft, and cannot achieve the effect of supporting the acoustic mesh, and when the d1 is too small, it is not favorable for increasing the ventilation performance of the ventilation barrier 50. Meanwhile, the aperture d1 of the first vent is larger than the aperture d2 of the second vent, so that the supporting sheet 51 plays a role of supporting the acoustic mesh 53, and the ventilation area of the ventilation isolating piece 50 is increased to the maximum extent, so that the loudspeaker module 100 achieves a better acoustic effect.

In this embodiment, the acoustic mesh 53 may be any one of a non-woven fabric and a nylon woven fabric, or any one of filter paper, dupont paper, laminating paper, mesh paper, and the like; but not limited to, the air-permeable material or the air-permeable form is only required to achieve the purpose of air-permeable and air-blocking.

As one example, an adhesive layer is disposed between the support sheet 51 and the acoustic mesh 53, and the two are connected by the adhesive layer. Specifically, the adhesive layer may be a double-sided adhesive tape or a hot melt adhesive, or may be formed by coating a glue on one side of the support sheet 51, and then bonding the adhesive layer to the acoustic mesh 53. Thus, not only the connection strength between the support sheet 51 and the acoustic mesh 53 can be ensured, but also the assembly of the support sheet 51 and the acoustic mesh 53 can be simplified. Moreover, glue is coated on one surface of the supporting sheet 51, the meshes of the supporting sheet 51 are not blocked, and after the air-permeable partition 50 is combined with the acoustic mesh cloth 53, the air-permeable partition has a larger air-permeable area. In this embodiment, the supporting sheet 51 and the acoustic mesh 53 are bonded by a double-sided tape or a glue coating method, and the manufacturing process is simple, so that the cost is low.

As one of the embodiments, the support sheet 51 may also be combined with the acoustic mesh 53 by hot pressing, and compared with adhesive bonding, the hot pressing combination has higher automation degree, which is convenient for saving manpower.

In this embodiment, the inner wall of the housing 10 is provided with a slot, and the ventilation isolation member 50 is inserted into the slot. Thus, when the air-permeable partition 50 is assembled, the air-permeable partition 50 only needs to be inserted into the slot from the notch of the slot, so that the assembly of the air-permeable partition 50 becomes simple, convenient, firm and stable.

In actual use, the accommodating space of the speaker module 100 is different in order to adapt to different terminals, and the space of the rear sound cavity 20 of the speaker module 100 is therefore different, and further, the positional relationship between the sound absorbing cavity 23 and the first rear cavity 21 may be different. As one embodiment, as shown in fig. 2, the speaker module rear acoustic cavity 20 includes a first rear cavity 21 and a sound absorption cavity 23, and the speaker unit 30 is disposed in the first rear cavity 21. The sound absorbing cavities 23 are distributed on two sides of the first rear cavity 21, the breathable partition piece 50 is installed in the rear sound cavity 20 at an included angle, the breathable partition piece 50 forms a bending portion corresponding to the included angle, correspondingly, the inner wall of the shell 10 is provided with two end slots 114 and a middle slot 116, two ends of the breathable partition piece 50 are inserted into the two end slots 114, and the bending portion is inserted into the middle slot 116. Wherein the two end slots 114 are respectively located at different sides of the first rear cavity 21, and the middle slot 116 is located between the two end slots 114. The sound absorbing cavities 23 of the present embodiment are distributed on two sides of the first rear cavity 21, and the space of the rear sound cavity 20 of the speaker module 100 is fully utilized, and more sound absorbing particles are filled, so that the equivalent volume of the rear sound cavity 20 is maximized. The air-permeable partition 50 is manufactured by using a support sheet 51 and an acoustic mesh 53 bonded to the support sheet 51, and using the characteristics of high elasticity and toughness of a PC material, the air-permeable partition 50 is bent and inserted into the slots 114 at the two ends and the middle slot 116. Compared with the design that the conventional breathable isolating piece adopts the supporting frame and the mesh cloth, the manufacturing method has the advantages of simple manufacturing process, high molding rate and cost saving. Moreover, the ventilation area of the mesh is larger, and the loudspeaker module 100 has a better acoustic effect.

As another embodiment, the sound-absorbing cavities 23 may be distributed on one side of the first rear cavity 21, and when the sound-absorbing cavities 23 are distributed on one side of the first rear cavity 21, the two ends of the air-permeable partition 50 are inserted into the grooves on the inner wall of the housing 10, so as to achieve the functions of isolating the sound-absorbing particles and ventilating.

As a specific example, as shown in fig. 1 and 5, the housing 10 includes a first housing 11 and a second housing 13 that are covered with each other, the first housing 11 and the second housing 13 together enclose an inner cavity of the housing 10, and the speaker unit 30, the air-permeable partition 50, the flexible circuit board 70, the sound-absorbing particles, and the like are accommodated in the inner cavity. Specifically, a supporting wall is arranged on the inner wall of the first casing 11, the speaker unit 30 is mounted on the supporting wall and forms a front sound cavity with the first casing 11, and the first casing 11 is provided with a sound outlet 112 communicated with the front sound cavity; the first shell 11, the second shell 13 and the speaker unit 30 are enclosed to form a rear sound cavity 20, and the inner wall of the first shell 11 is provided with a slot. The assembly process of the speaker module 100 is that the air-permeable partition 50 is first clamped into a slot reserved in the first housing 11, and the air-permeable partition 50 is fixed through the slot of the first housing 11; then the second shell 13 is buckled on the combined structure of the first shell 11 and the air-permeable partition 50; finally, the first housing 11 and the second housing 13 are sealed, and the first rear chamber 21 and the sound absorbing chamber 23 are formed by the separation of the air-permeable partition 50.

It should be noted that, in the practical application process, the first housing 11 and the second housing 13 may be plastic members at the same time, and are combined together by ultrasonic welding; one metal piece and the other plastic piece can be combined together in an adhesive connection mode.

In this embodiment, as shown in fig. 3, the first housing 11 includes a top wall 111, a surrounding wall 113 surrounding the air-permeable partition 50 to form the sound-absorbing cavity 23, two spaced first blocking walls 1111 and two spaced second blocking walls 1113 are disposed on the top wall 111 and/or the surrounding wall 113, the two first blocking walls 1111 are spaced to form one of the end slots 114, and the two second blocking walls 1113 are spaced to form the other end slot 114. It is understood that the two first blocking walls 1111 and the two second blocking walls 1113 may be both provided on the top wall 111, formed by the top wall 111 extending; or both of them can be arranged on the surrounding wall 113 and formed by extending the surrounding wall 113 towards the sound-absorbing cavity 23; one of the two walls may be disposed on the top wall 111 and the other one may be disposed on the surrounding wall 113; this embodiment is not provided, as long as two end slots 114 are formed to fix the air-permeable partition 50. Therefore, the end slot 114 is more flexible and easy to implement.

Furthermore, the top wall 111 of the first housing 11 is provided with an arc-shaped retaining wall 1115, and an intermediate slot 116 is formed between the protruding block and the surrounding wall 113. The arc-shaped blocking wall 1115 is arranged close to the surrounding wall 113, and forms the middle slot 116 with the surrounding wall 113, so that the surrounding wall 113 becomes one of the blocking walls of the middle slot 116, the space occupied by another blocking wall arranged in the sound absorption cavity 23 is omitted, the space of the sound absorption cavity 23 is fully utilized to fill more sound absorption particles, and the audio performance of the speaker module 100 is improved. Moreover, the convex blocks are arranged in an arc shape, so that the bent parts can be better protected while the breathable isolating pieces 50 are fixed, and mesh cloth cannot be lacerated.

Optionally, the gas permeable barrier 50 is a close fitting insert fit with the slot to achieve a better seal. The air-permeable isolating piece 50 and the slot can be glued at the insertion gap, or the air-permeable isolating piece 50 and the inner surface of the shell 10 can be bonded and fixed, so that a better sealing effect is achieved, and sound-absorbing particles are prevented from entering the connection gap between the air-permeable isolating piece 50 and the slot.

In addition, it can be understood that the casing 10 is further provided with a filling hole 131, and the filling can be maximized by filling the sound-absorbing particles through the filling hole 131. And a cover plate 17 covers the filling hole 131, and the cover plate 17 is detachably connected with the shell 10. The cover plate 17 may be a PET plate, or may be made of other materials and shapes, and is disposed on the housing 10 in the form of adhesion, insertion, or the like to achieve the effect of sealing the filling hole 131.

As shown in fig. 1, the speaker module 100 further includes an electrical connector, which may be a flexible circuit board 70, one end of the flexible circuit board 70 may be electrically connected to the speaker unit 30 by soldering, and the other end may be exposed on the surface of the housing 10 for electrically connecting with other devices or external circuits. The ventilation isolation member 50 is provided with an avoiding groove for avoiding the flexible circuit board 70, so that the flexible circuit board 70 can extend out.

It is understood that the first housing 11 is provided with a damping hole 115 at a position corresponding to the rear sound chamber 20, and the first housing 11 is provided with a damper 15 at a position corresponding to the damping hole 115. Thus, the exchange of the air flow inside and outside the speaker module 100 can be effectively performed, so that the sound pressure inside the speaker module 100 is more balanced, and the sound quality of the speaker module 100 is improved.

As can be appreciated, the existing mesh assembly generally comprises two parts, namely a support member and a mesh, and the mesh needs to be fixed in the rear acoustic cavity 20 by the support function of the support member; however, the supporting member is generally a narrow ring-shaped structure, and under the premise of ensuring the stability of the mesh fixed to the supporting member and the convenience of the mesh assembled in the supporting member and the supporting member fixed to the rear acoustic cavity 20, the supporting member is difficult to adopt a special-shaped structure, so that the space of the rear acoustic cavity 20 of the speaker module 100 cannot be well adapted.

In view of such disadvantages, in the technical solution of the present embodiment, the breathable isolation member 50 with the breathable isolation function adopts the support sheet 51 and the acoustic mesh 53 compounded on the support sheet 51, and the breathable isolation member 50 manufactured by using the characteristics of good fatigue resistance, high strength and high elastic coefficient of the PC material is suitable for different speaker module 100 structures, has a wider application range, and greatly saves the assembly process.

The utility model also provides an electronic device, which includes the speaker module as described above, and the specific structure of the speaker module refers to the foregoing embodiments. Since the electronic device adopts all the technical solutions of all the embodiments, at least all the beneficial effects brought by all the technical solutions of all the embodiments are achieved, and no further description is given here.

It is understood that the electronic device may be, but is not limited to, a mobile phone, a notebook, a tablet, a Personal Digital Assistant (PDA), an e-book reader, an MP3 (Moving Picture Experts Group Audio Layer III) player, an MP4 (Moving Picture Experts Group Audio Layer IV) player, a wearable device, a navigator, a handheld game console, a virtual and real device, an augmented reality device, etc.

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

1. A speaker module, comprising:

a housing having an interior cavity;

2. The speaker module as claimed in claim 1, wherein d1 is 0.2mm 0.3mm, d2 is 0.05mm 0.1 mm.

3. The speaker module as claimed in claim 1, wherein the acoustic mesh is any one of non-woven fabric, nylon woven fabric, filter paper, dupont paper, laminated paper or mesh paper.

4. The speaker module as recited in claim 1, wherein the support sheet and the acoustic mesh are adhesively bonded or thermo-compression bonded.

5. The speaker module as claimed in claim 1, wherein the inner wall of the housing is provided with a slot, and the air-permeable partition is inserted into the slot.

6. The speaker module as claimed in claim 5, wherein the air-permeable partition is disposed at an included angle, the air-permeable partition forms a bending portion corresponding to the included angle, the slot includes two slots and a middle slot, two ends of the air-permeable partition are respectively inserted into the two slots, and the bending portion is inserted into the middle slot.

7. The speaker module as claimed in claim 6, wherein the housing comprises a first shell and a second shell, the first shell and the second shell enclosing to form the inner cavity, the first shell having the sound outlet, and an inner wall of the first shell having the end slot and the middle slot.

8. The speaker module as claimed in claim 7, wherein the first housing comprises a top wall and a surrounding wall surrounding the air-permeable partition to form the sound-absorbing cavity, and two first blocking walls and two second blocking walls are disposed on the top wall and/or the surrounding wall, the two first blocking walls are spaced apart to form one of the end slots, and the two second blocking walls are spaced apart to form the other end slot.

9. A loudspeaker module as claimed in claim 8, wherein said top wall is provided with an arcuate projection thereon, said projection and said wall defining said intermediate slot therebetween.

10. The speaker module as claimed in any one of claims 1 to 9, wherein the housing further has a filling hole for filling the sound-absorbing particles, the speaker module further comprises a cover plate, the cover plate covers the filling hole, and the cover plate is detachably connected to the housing.

11. An electronic device comprising a speaker module according to any one of claims 1 to 10.