CN216673229U

CN216673229U - Speaker module and electronic equipment

Info

Publication number: CN216673229U
Application number: CN202123392839.9U
Authority: CN
Inventors: 刘成军
Original assignee: Kunming Wenxun Industrial Co ltd
Current assignee: Kunming Wenxun Industrial Co ltd
Priority date: 2021-12-29
Filing date: 2021-12-29
Publication date: 2022-06-03
Anticipated expiration: 2031-12-29

Abstract

The utility model discloses a loudspeaker module and electronic equipment, wherein the loudspeaker module is applied to the electronic equipment, the electronic equipment comprises an equipment shell, the equipment shell is provided with a sound outlet hole, the loudspeaker module comprises a shell, a loudspeaker main body and a sealing piece, the shell is used for being installed in the equipment shell, the shell is provided with the sound hole, the sound hole is used for being arranged corresponding to the sound outlet hole, the loudspeaker main body is arranged in the shell, the sealing piece is integrally formed in the shell, and the sealing piece is used for being connected between the equipment shell and the shell in a sealing mode so as to prevent liquid from entering the equipment shell from the sound outlet hole. Because the speaker module includes the sealing member with shell integrated into one piece to can improve the reliability of being connected of sealing member and shell, and then improve speaker module and electronic equipment waterproof sealing performance.

Description

Speaker module and electronic equipment

Technical Field

The present invention relates to the field of electronic devices, and in particular, to a speaker module and an electronic device.

Background

Electronic equipment is when realizing sound function, mainly through setting up the speaker module in electronic equipment, sets up out the sound hole in the position that the casing corresponds to the sound hole of speaker module simultaneously, utilizes out the sound hole to spread out the sound that the speaker module sent. In the related art, in order to avoid liquid from entering the electronic device through the sound hole, the waterproof structure is often bonded between the housing of the electronic device and the speaker module through the double-sided adhesive tape, so as to achieve waterproof sealing.

However, the bonding surface of the waterproof structure is small, and the bonding strength of the double-sided adhesive tape is insufficient, so that the waterproof structure is easy to fall off or shift from the shell of the electronic device to the speaker module, thereby affecting the waterproof sealing performance of the electronic device.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model discloses a loudspeaker module and electronic equipment.

In order to achieve the above object, in a first aspect, an embodiment of the present invention discloses a speaker module, where the speaker module is applied to an electronic device, the electronic device includes a device housing, the device housing is provided with a sound outlet, and the speaker module includes:

the shell is used for being installed in the equipment shell and provided with a sound hole, and the sound hole is used for being arranged corresponding to the sound outlet hole;

a speaker body disposed in the housing; and

the sealing element is integrally formed on the shell and is used for being connected between the equipment shell and the shell in a sealing mode so as to prevent liquid from entering the equipment shell from the sound outlet hole.

As an alternative, in an embodiment of the first aspect of the present invention, the sealing member is located at an outer periphery of the sound hole, or at an outer periphery of a side of the casing for connecting to the device case.

As an alternative embodiment, in an embodiment of the first aspect of the utility model, the seal is injection moulded as a unitary structure with the housing.

As an alternative embodiment, in an embodiment of the first aspect of the utility model, the seal comprises a main body portion and a raised portion, the connecting portion being integrally formed with the housing, the raised portion being adapted to be sealingly connected between the device housing and the housing.

As an alternative implementation manner, in an embodiment of the first aspect of the present invention, the casing has a first bottom surface and a first side surface, the first side surface is connected to the first bottom surface, and the first side surface is provided with the sound hole, when the casing is installed in the device housing, the first bottom surface is disposed toward the bottom surface of the device housing, the first side surface is disposed toward a side wall surface of the device housing, where the sound hole is disposed, and the sealing member is configured to be hermetically connected between the first side surface and the side wall surface of the device housing.

As an alternative implementation, in an embodiment of the first aspect of the present invention, the first side surface is an inclined surface, and the first side surface is parallel to a side wall surface of the device housing.

As an alternative implementation manner, in an embodiment of the first aspect of the present invention, the outer casing includes a main body portion and an outer protrusion protruding from the main body portion, the outer protrusion has the first side surface, the main body portion has a first side and a second side opposite to the first side surface, the first side is configured to be disposed toward a display screen of the electronic device, and a height of the outer protrusion protruding from the main body portion decreases gradually along a direction from the first side surface to the second side surface.

As an alternative implementation, in an embodiment of the first aspect of the utility model, the first side face is inclined at an angle α of 10 ° ≦ α ≦ 80 ° in a direction from the first side to the second side.

In a second aspect, an embodiment of the present invention discloses an electronic device, including:

the equipment shell is provided with a sound outlet hole; and

the speaker module is the speaker module according to the first aspect, and the speaker module is disposed in the device housing and the sound hole of the speaker module is disposed corresponding to the sound hole.

As an optional implementation manner, in an embodiment of the second aspect of the present invention, when the surface of the casing of the speaker, where the sound hole is provided, is an inclined surface, the side wall surface of the device housing, where the sound outlet hole is provided, is an inclined surface, and the surface of the casing, where the sound hole is provided, and the side wall surface of the device housing, where the sound outlet hole is provided, are in fit connection, compared with the prior art, the embodiment of the present invention has the following beneficial effects:

adopt a speaker module and electronic equipment that this embodiment provided, this speaker module is through with sealing member and casing integrated into one piece to improve the reliability that sealing member and speaker module are connected, when this speaker module assembles in electronic equipment's equipment casing, the sealing member can be sealed stably between equipment casing and shell, and difficult emergence drops or shifts, thereby can improve electronic equipment's waterproof performance.

Drawings

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

Fig. 1 is a schematic structural diagram of an electronic device provided in this embodiment;

FIG. 2 is a schematic diagram of an internal structure of the electronic device of FIG. 1;

FIG. 3 is an enlarged view taken at I in FIG. 2;

FIG. 4 is a schematic diagram of another internal structure of the electronic device of FIG. 1;

fig. 5 is a schematic structural diagram of the speaker module provided in this embodiment.

Icon: 10. an electronic device; 1. an equipment housing; 1a, sound outlet holes; 11. a bottom surface; 12. a side wall surface; 2. a speaker module; 21. a housing; 21a, a sound hole; 2 a-a first bottom surface; 2 b-a first side; 211. an installation part; 212. mounting holes; 214. a main body portion; 2141. a first side; 2142. a second side; 215. an outer protrusion; 216. a first housing; 217. a second housing; 22. a speaker main body; 23. a seal member; 231. a body portion; 232. a convex portion; 24. a waterproof sound-transmitting membrane; 3. a display screen.

Detailed Description

In the present invention, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "center", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate an orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are used primarily to better describe the utility model and its embodiments and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meanings of these terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

Furthermore, the terms "mounted," "disposed," "provided," "connected," and "connected" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meanings of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.

Furthermore, the terms "first," "second," and the like, are used primarily to distinguish one device, element, or component from another (the specific nature and configuration may be the same or different), and are not used to indicate or imply the relative importance or number of the indicated devices, elements, or components. "plurality" means two or more unless otherwise specified.

The technical solution of the present invention will be further described with reference to the following embodiments and the accompanying drawings.

The embodiment of the utility model discloses a loudspeaker module, which is applied to electronic equipment, such as mobile phones, tablet computers, smart watches, smart glasses and other electronic equipment, so as to realize the loudspeaker function of the electronic equipment. Specifically, when the speaker module is applied to an electronic device, the speaker module is integrally installed in a device housing of the electronic device, and then sound is emitted through a sound emitting hole in the device housing of the electronic device.

Considering that the speaker module is mainly used in an electronic device, the speaker module is mainly matched with a device housing of the electronic device, and meanwhile, considering the waterproof performance between the speaker module and the device housing of the electronic device, based on this, for the convenience of understanding, the following will describe the structures of the electronic device and the speaker module with reference to the attached drawings.

Referring to fig. 1 and fig. 2 together, an embodiment of the present application discloses an electronic device 10, where the electronic device 10 includes a device housing 1 and a speaker module 2, and the device housing 1 is provided with a sound outlet 1 a. The speaker module 2 includes a housing 21, a speaker body 22 and a sealing member 23, the housing 21 is configured to be installed in the device housing 1, the housing 21 is provided with a sound hole 21a, the sound hole 21a is configured to be disposed corresponding to the sound outlet hole 1a, the speaker body 22 is disposed in the housing 21, the sealing member 23 is integrally formed in the housing 21, and the sealing member 23 is configured to be sealingly connected between the device housing 1 and the housing 21 so as to prevent liquid from entering the device housing 1 through the sound outlet hole 1 a.

According to the speaker module 2 of the embodiment of the utility model, the sealing member 23 integrally formed with the housing 21 is used for improving the connection reliability of the sealing member 23 and the housing 21, the sealing member 23 is not easy to be separated from the housing 21 or to be displaced relative to the housing 21, when the speaker module 2 is installed on the device housing 1 so that the sound hole 21a of the speaker module 2 corresponds to the sound outlet hole 1a of the device housing 1, the sealing member 23 can be firmly and hermetically connected between the housing 21 and the device housing 1, thereby improving the waterproof sealing performance of the speaker module 2 and the electronic device 10, and avoiding the situation that liquid enters the electronic device 10 from the sound outlet hole 1a of the electronic device 10 and the gap between the speaker module 2 and the device housing 1 of the electronic device 10, thereby causing the electronic device in the electronic device 10 to be out of work.

In some embodiments, the sealing member 23 and the housing 21 may be formed as a single-piece structure by injection molding, so that the manufacturing method of the sealing member 23 and the housing 21 is simple, and the sealing member 23 and the housing 21 do not need to be fixed by other methods, such as glue or screws, and the sealing member 23 is not easily displaced relative to the housing 21, thereby effectively improving the connection reliability of the sealing member 23 and the housing 21.

Further, considering that the housing 21 needs to have supporting and accommodating functions, i.e., to support and accommodate the speaker body, the housing 21 may be made of hard plastic. The sealing member 23 needs to be deformed by the common pressing action of the equipment housing 1 of the electronic equipment 10 and the housing 21 of the speaker module 2 to be connected between the equipment housing 1 of the electronic equipment 10 and the housing 21 of the speaker module 2 in a sealing manner, and therefore, the sealing member 23 is generally made of an elastic material, such as rubber, silicone, and the like. Based on this, the sealing member 23 and the housing 21 may be injection molded as an integral structure by a two-color mold or an over-mold.

Referring to fig. 3, in an alternative embodiment, the sealing member 23 is located at the periphery of the sound hole 21a, that is, the sealing member 23 surrounds the periphery of the sound hole 21a, so that the distance between the sealing member 23 and the sound hole 21a is smaller, that is, when the speaker module 2 is assembled in the device housing 1 of the electronic device 10, the distance between the sound outlet hole 1a of the device housing 1 and the sealing member 23 is smaller, so that the liquid entering the device housing 1 from the sound outlet hole 1a can be blocked in time, and the waterproof sealing effect of the electronic device 10 is effectively improved.

In another alternative embodiment, the sealing member 23 may also be located on the outer periphery of the side of the casing 21 for connecting to the device housing 1 (as shown in fig. 4), in order to prevent liquid from entering the device housing 1 through the sound outlet hole 1a, thereby causing water-related failure of electronic components inside the device housing. In this way, when liquid enters the connection gap between the device case 1 and the housing 21 from the sound outlet hole 1a of the device case 1, the liquid is blocked by the sealing member 23 provided on the outer periphery of the housing 21, and thus cannot enter the device case 1, and thus, the electronic component inside the device case 1 is prevented from wading into water and causing a failure. Moreover, since the sealing member 23 is provided at the outer periphery of the casing 21 on the side for connection to the device case 1, the sealing member 23 can be provided in a large area, and therefore, the volume of the sealing member 23 can be set large, thereby increasing the connection area of the sealing member 23 with the casing 21 and the device case 1, and further improving the waterproof sealing effect between the casing 21 and the device case 1.

The present embodiment will be described by taking as an example a mode in which the seal 23 is positioned on the outer periphery of the sound hole 21 a.

As shown in fig. 2 and 3, in some embodiments, the sealing member 23 includes a main body 231 and a protruding portion 232, the main body 231 is integrally formed with the casing 21, and the protruding portion 232 is used for sealing connection between the device housing 1 and the casing 21. Since the convex portion 232 is used for being hermetically connected between the apparatus casing 1 and the enclosure 21, that is, the convex portion 232 protrudes from the surface of the enclosure 21 provided with the sealing member 23, when the speaker module 2 is mounted on the apparatus casing 1, the convex portion 232 is compressed between the enclosure 21 and the apparatus casing 1, so that the convex portion 232 is deformed to be hermetically connected between the enclosure 21 and the apparatus casing 1, which is beneficial to improving the waterproof sealing performance between the enclosure 21 and the apparatus casing 1.

It can be understood that the protruding portion 232 may be interference-fitted between the device housing 1 and the casing 21, so that when the speaker module 2 is mounted on the device housing 1, the protruding portion 232 is tightly fitted with the casing 21 and the device housing 1, and the waterproof sealing effect is improved, and at the same time, the stability of the speaker module 2 mounted in the device housing 1 can also be improved.

Further, the protrusion 232 may be a ring-shaped protrusion surrounding the center of the body 231, or the protrusion 232 may be a plurality of protrusions, and the plurality of protrusions may be arranged in a ring around the center of the body 231. The number of the convex portions 232 is not particularly limited as long as the convex portions 232 can be compressed between the apparatus case 1 and the casing 21. As shown in fig. 5, it can be understood that the electronic device 10 includes not only the device housing 1, but also a circuit board, a microphone, and other components disposed in the device housing 1, and a display screen 3 disposed in the device housing 1, when the electronic device 10 is assembled, the components (such as the circuit board, the microphone, and the speaker module) can be assembled in the device housing 1 from the opening of the device housing 1, and then the display screen 3 is mounted at the opening of the device housing 1.

Specifically, the device case 1 has a bottom surface 11 facing the display screen 3 and a side wall surface 12 connected to the bottom surface 11, the side wall surface 12 is provided with a sound outlet hole 1a, the housing 21 of the speaker module 2 includes a first bottom surface 2a and a first side surface 2b, the first side surface 2b is connected to the first bottom surface 2a, and the first side surface 2b is provided with a sound hole. When the speaker module 2 is mounted in the apparatus casing 1, the first bottom surface 2a is disposed toward the bottom surface of the apparatus casing, the first side surface 2b is disposed toward the side wall surface 12, and the sealing member 23 is sealingly attached between the first side surface 2b and the side wall surface 12 of the apparatus casing 1. Like this, can set up speaker module 2 in bottom surface 11 from equipment housing 1's opening, speaker module 2's installation is more convenient, and the area of bottom surface 11 is bigger than the area of lateral wall face 12, consequently, speaker module 2 has bigger connection area with equipment housing 1 to be favorable to improving the stability that speaker module 2 and equipment housing 1 are connected. Of course, in other embodiments, the speaker module 2 may be mounted on the side wall surface 12 of the apparatus housing 1.

Further, in order to fix the speaker module 2 in the apparatus casing 1 and prevent the speaker module 2 from being displaced relative to the apparatus casing 1, the housing 21 of the speaker module 2 is provided with a plurality of mounting portions 211, and the plurality of mounting portions 211 have mounting holes 212 so as to be fixed to the apparatus casing 1 by fasteners such as screws, bolts, and the like, so that the speaker module 2 can be firmly mounted in the apparatus casing 1.

Specifically, the mounting portion 211 may be a lug protruding from the outer surface of the housing 21, and in order to improve the reliability of fixing the housing 21 and the equipment enclosure 1, four mounting portions 211 may be disposed around the housing 21, and the housing is fixed in the equipment enclosure 1 through the four mounting portions 211, which can improve the stability of connecting the speaker module 2 and the equipment enclosure 1.

Since the speaker module 2 is mounted on the bottom surface 11 of the device case 1, the sound hole 21a of the speaker module 2 corresponds to the side wall surface 12 of the device case 1, and the seal 23 is also provided on the first side surface 2b of the housing 21, it is necessary to apply a force toward the side wall surface 12 of the electronic device 10 to the speaker module 2 so that the seal 23 provided on the outer periphery of the sound hole 21a is pressed against the side wall surface 12 at the time of assembly. Based on this, in order to improve the convenience of assembly, in some embodiments, the first side surface 2b is an inclined surface, and the first side surface 2b is parallel to the side wall surface 12 of the apparatus housing. In this way, since the first side surface 2b is a slanted surface and is parallel to the side wall surface 12, that is, the slanted first side surface 2b abuts against the slanted side wall surface 12, when the speaker module 2 is mounted on the bottom surface 11 from the opening of the device case 1, an interaction force is also generated between the first side surface 2b and the side wall surface 12, and the sealing member 23 is pressed between the first side surface 2b and the side wall surface 12, so that the sealing member 23 can be pressed between the first side surface 2b and the side wall surface 12 without additionally applying a force toward the side wall surface 12 to the speaker module 2.

Further, the housing 21 includes a main body portion 214 and an outer protrusion 215 protruding from the main body portion 214, the outer protrusion 215 has a first side surface 2b, the main body portion 214 has a first side 2141 and a second side 2142 opposite to each other, the first side 2141 is configured to be disposed toward the display screen 3 of the electronic device 10, and a height of the outer protrusion 215 protruding outward from the main body portion 214 gradually decreases along a direction from the first side 2141 toward the second side 2142 (i.e., along a direction x shown in fig. 3, i.e., along the direction from the first side 2141 toward the second side 2142). In this way, when the speaker module 2 is mounted, the side wall surface 12 has a supporting force against the speaker module 2, and the seal 23 is pressed between the first side surface 2b and the side wall surface 12. In addition, since the inclined surface is arranged such that the protruding height of the protruding portion 215 relative to the main body portion 214 gradually decreases along the direction from the first side 2141 to the second side 2142, when the speaker module 2 is installed in the device housing 1, mainly the side of the protruding portion 215 with the smaller protruding height is arranged near the bottom surface 11 of the device housing 1, and the side of the protruding portion 215 with the larger protruding height is arranged near the display 3, so that the space occupation of the bottom surface 11 of the device housing 1 by the housing 21 can be reduced, and the influence on the arrangement space of other electronic components in the device housing 1 can be reduced.

Further, in the direction from the first side 2141 to the second side 2142, the first side 2b is inclined at an angle α, α is not less than 10 ° and not more than 80 °. Illustratively, α may be 10 °, 20 °, 30 °, 40 °, 50 °, 60 °, 70 °, 80 °, and so forth. By limiting the inclination angle of the first side surface 2b to the range of 10 ° to 80 °, on the one hand, the dimension of the convex portion 215 protruding with respect to the main body portion 214 can be ensured not to be excessively large, and the volume of the speaker module 2 can be made small. On the other hand, it is also possible to make the first side surface 2b have a sufficient inclination angle so that when the speaker module 2 is mounted in the apparatus case 1, a sufficient force is provided between the first side surface 2b and the side wall surface 12 to press the seal 23 between the first side surface 2b and the side wall surface 12 of the apparatus case 1, thereby improving the waterproof sealing property. When α is less than 10 °, the protruding length of the convex portion 215 is larger than that of the main body portion 214, which is not favorable for realizing the miniaturization design of the speaker module 2; when α > 80 °, when the speaker module 2 is mounted on the bottom surface 11 of the apparatus case 1, the force applied between the first side surface 2b and the side wall surface 12 is small, which is disadvantageous to press the sealing member 23 against the apparatus case 1 of the electronic apparatus 10, resulting in an unsatisfactory sealing effect.

It will be appreciated that the angle of inclination of the side wall surface 12 is the same as the angle of inclination of the first side surface 2b, so that the first side surface 2b is better fittingly connected to the side wall surface 12 to improve the sealing effect between the first side surface 2b and the side wall surface 12.

In some embodiments, the housing 21 may include a first housing 216 and a second housing 217 connected to the first housing 216 in an involutory manner, where the first housing 216 includes the main body portion 214 and the outer protrusion 215, that is, the first housing 216 is integrally formed with the sealing member 23, and the speaker main body 22 is disposed in an accommodating space defined by the first housing 216 and the second housing 217. Through setting up first casing 216 and the second casing 217 to closing the connection, when this speaker module 2 of equipment, can set up speaker main part 22 earlier in the accommodation space that first casing 216 and second casing 217 enclose to close the formation to be convenient for speaker module 2's equipment, rethread ultrasonic bonding is with first casing 216 and second casing 217 sealing connection, thereby improves speaker module 2's waterproof leakproofness.

In some embodiments, the speaker module 2 further includes a waterproof sound-transmitting membrane 24, and the waterproof sound-transmitting membrane 24 is disposed at the sound hole 21a of the first housing 216. Through setting up waterproof sound-transmitting membrane 24, can effectively block liquid and get into speaker module 2's inside from sound hole 21a to avoid the inside electronic parts of speaker module 2 to take place the condition of damaging because of wading. Specifically, the waterproof sound-transmitting membrane 24 may be adhered to the inner wall surface of the sound hole 21a, so that the fixing of the waterproof sound-transmitting membrane 24 is easily achieved.

In the electronic device 10 according to the embodiment of the present invention, since the sealing member 23 is integrally formed with the housing 21 of the speaker module 2, the connection reliability between the sealing member 23 and the housing 21 is high, and when the sound hole 21a of the speaker module 2 is assembled in the device housing 1 corresponding to the sound outlet hole 1a of the device housing 1, the sealing member 23 can be firmly and hermetically connected between the housing 21 and the device housing 1, so as to improve the waterproof sealing performance between the speaker module 2 and the electronic device 10, and prevent liquid from entering the electronic device 10 from the sound outlet hole 1a of the electronic device 10 and the gap between the speaker module 2 and the device housing 1 of the electronic device 10, thereby causing the electronic device inside the electronic device 10 to fail.

The speaker module and the electronic device disclosed in the embodiments of the present invention are described in detail above, and the principle and the embodiments of the present invention are explained herein by applying specific examples, and the description of the above embodiments is only used to help understanding the speaker module and the electronic device of the present invention and the core ideas thereof; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.

Claims

1. The utility model provides a speaker module, its characterized in that, speaker module is applied to electronic equipment, electronic equipment includes the equipment casing, the equipment casing is equipped with out the sound hole, speaker module includes:

a speaker body disposed in the housing; and

2. The speaker module as claimed in claim 1, wherein the seal is located at the periphery of the sound hole or at the periphery of a side of the enclosure for connection to the device housing.

3. The speaker module as recited in claim 1, wherein the seal is injection molded as a unitary structure with the housing.

4. The speaker module as recited in claim 1, wherein the seal comprises a main body portion integrally formed with the enclosure and a raised portion for sealing connection between the device housing and the enclosure.

5. The speaker module as claimed in any one of claims 1-4, wherein the housing has a first bottom surface and a first side surface, the first side surface is connected to the first bottom surface, and the first side surface is provided with the sound hole, when the housing is mounted in the device housing, the first bottom surface is disposed toward the bottom surface of the device housing, the first side surface is disposed toward the side wall surface of the device housing where the sound hole is disposed, and the sealing member is configured to be sealingly connected between the first side surface and the side wall surface of the device housing.

6. The speaker module as recited in claim 5, wherein the first side is a sloped surface, the first side being parallel to a side wall surface of the device housing.

7. The speaker module as claimed in claim 6, wherein the housing includes a main body portion and an external protrusion protruding from the main body portion, the external protrusion having the first side surface, the main body portion having a first side and a second side opposite to the first side, the first side being configured to be disposed toward a display screen of the electronic device, and a height of the external protrusion protruding from the main body portion gradually decreases along a direction from the first side to the second side.

8. The speaker module as claimed in claim 7, wherein the first side is inclined at an angle α, 10 ° ≦ α ≦ 80 ° in a direction from the first side to the second side.

9. An electronic device, comprising:

the equipment shell is provided with a sound outlet hole; and

the speaker module according to any one of claims 1-8, wherein the speaker module is disposed in the device housing and the sound hole of the speaker module is disposed corresponding to the sound outlet hole.

10. The electronic device according to claim 9, wherein when the surface of the housing of the speaker in which the sound hole is provided is an inclined surface, a side wall surface of the device case in which the sound emission hole is provided is an inclined surface, and the surface of the housing in which the sound hole is provided is connected to the side wall surface of the device case in a fitting manner.