CN215453196U

CN215453196U - Loudspeaker module

Info

Publication number: CN215453196U
Application number: CN202122103418.3U
Authority: CN
Inventors: 李政强; 谭飞; 陈国强
Original assignee: Goertek Inc
Current assignee: Goertek Inc
Priority date: 2021-09-01
Filing date: 2021-09-01
Publication date: 2022-01-07
Anticipated expiration: 2031-09-01

Abstract

The utility model discloses a loudspeaker module which comprises a shell, a metal isolation net and a loudspeaker monomer, wherein the shell is provided with an accommodating cavity and a sound outlet communicated with the accommodating cavity, the metal isolation net comprises a bottom and a side part arranged around the periphery of the bottom, the side part and the bottom enclose to form a groove, the metal isolation net is arranged in the accommodating cavity to divide the accommodating cavity into a filling cavity and an installation cavity, the installation cavity is communicated with the sound outlet, the filling cavity is used for filling suction particles, and the loudspeaker monomer is arranged in the installation cavity. The utility model aims to solve the problem of insufficient ventilation area, provides the loudspeaker module with good ventilation property, improves the acoustic performance of the loudspeaker module, and effectively reduces the size of the loudspeaker module.

Description

Loudspeaker module

Technical Field

The utility model relates to the technical field of electroacoustic conversion, in particular to a loudspeaker module.

Background

Along with the development of science and technology, people require more and more high to electronic equipment's tone quality, and the speaker module among the electronic equipment receives electronic equipment outward appearance structure's influence, and its volume is also littleer and more. In order to improve the acoustic performance of the speaker module, sound-absorbing particles need to be filled. Among the correlation technique, the Z of speaker module is too little to the height, and keeps apart the screen cloth and receive structure and processing restriction, leads to keeping apart the mesh area of breathing freely of screen cloth not enough, influences the acoustic performance on the contrary.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide a loudspeaker module and electronic equipment, aims to solve the problem of insufficient ventilation area, and provides the loudspeaker module with good ventilation property, so that the acoustic performance of the loudspeaker module is improved, and the size of the loudspeaker module is effectively reduced.

In order to achieve the above object, the present invention provides a speaker module, which includes:

the shell is provided with a cavity and a sound outlet communicated with the cavity;

the metal isolation net comprises a bottom and a side part arranged around the periphery of the bottom, the side part and the bottom are enclosed to form a groove, the metal isolation net is arranged in the cavity to divide the cavity into a filling cavity and an installation cavity, the installation cavity is communicated with the sound outlet, and the filling cavity is used for filling suction particles; and

the loudspeaker unit is arranged in the mounting cavity.

In one embodiment, the metal separation net is formed by weaving metal wires, so that the metal separation net is provided with a plurality of air holes.

In one embodiment, the aperture range of each air hole is 0.03 mm-0.3 mm;

and/or the thickness of the metal isolation net is greater than or equal to 0.05 mm.

In one embodiment, the bottom part and the side part are of an integrally formed structure;

and/or the metal separation net forms the bottom part, the side part and the groove formed by enclosing the bottom part and the side part through stamping and stretching.

In one embodiment, the metal isolation net is connected with the inner wall of the cavity in a gluing and sealing mode through the side portion.

In an embodiment, a supporting table is arranged in the shell, the supporting table is enclosed to form a mounting groove communicated with the sound outlet, a supporting step is formed on one side of the supporting table facing the mounting groove, the speaker monomer is arranged in the mounting groove and supported on the supporting step, and the vibrating diaphragm of the speaker monomer and the supporting table are enclosed to form a front sound cavity communicated with the sound outlet.

In an embodiment, the metal isolation mesh cover covers a side of the speaker unit facing away from the front acoustic cavity, and is connected to the support table to divide the accommodating cavity into the filling cavity and the mounting cavity.

In an embodiment, a limiting groove is formed in the housing adjacent to the supporting platform, at least part of the metal isolation net is limited in the limiting groove to divide the containing cavity into the filling cavity and the mounting cavity, and the supporting platform is located in the mounting cavity.

In one embodiment, the housing includes:

the loudspeaker comprises a first shell, a loudspeaker body and a loudspeaker cover, wherein the first shell is provided with a containing groove and a sound outlet, a supporting table is convexly arranged on the bottom wall of the containing groove, the supporting table is enclosed to form a mounting groove communicated with the sound outlet, the loudspeaker body is arranged in the mounting groove, and two limiting grooves which are oppositely arranged are arranged on the side wall of the containing groove and are adjacent to the supporting table; and

the second shell covers the notch of the accommodating groove and surrounds the first shell to form the accommodating cavity, and a positioning groove is formed in the second shell corresponding to each limiting groove;

the two ends of the metal isolation net are respectively limited in the two limiting grooves and the two positioning grooves so as to divide the containing cavity into the filling cavity and the mounting cavity, and the mounting groove is located in the mounting cavity.

In an embodiment, a step surface is arranged on the first shell adjacent to the notch of the accommodating groove, and the second shell covers the notch of the accommodating groove and is in limit abutment with the step surface;

and/or the metal isolation net is connected with the first shell and the second shell in a sealing manner by gluing;

and/or the first shell is also provided with a damping hole communicated with the filling cavity, the loudspeaker module further comprises a damping piece, and the damping piece is covered on the damping hole;

and/or the second shell is also provided with a filling hole communicated with the filling cavity, and the loudspeaker module further comprises a plugging piece for plugging the filling hole;

and/or the loudspeaker module further comprises a flexible circuit board, and part of the flexible circuit board extends into the mounting cavity and is electrically connected with the loudspeaker monomer;

and/or the first shell and the second shell are metal pieces.

According to the technical scheme, the metal isolation net is arranged in the shell, the metal isolation net is arranged into the bottom and the side part arranged around the periphery of the bottom, the side part and the bottom are enclosed to form the groove, so that the metal isolation net divides the containing cavity of the shell into the filling cavity and the mounting cavity, the mounting cavity communicated with the sound outlet is used for mounting and fixing the loudspeaker monomer, the sound generated by the loudspeaker monomer is smoothly transmitted out through the sound outlet, the filling cavity is used for filling the suction particles, the sound generated by the loudspeaker monomer enters the filling cavity through the metal isolation net, the transmission path of the sound absorption particles is increased, the resonant frequency of the loudspeaker module is reduced, and the audio performance, particularly the low-frequency acoustic performance, of the loudspeaker module is improved. Meanwhile, the whole air holes of the metal isolation net are uniformly distributed, so that the air permeability is better, the metal isolation net is not influenced by the minimum width of die cutting, the processing is convenient and fast, the forming is easy, and the metal isolation net is suitable for small-sized loudspeaker modules.

Drawings

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

Fig. 1 is a schematic structural diagram of a speaker module according to an embodiment of the utility model;

FIG. 2 is an exploded view of a speaker module according to an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a metal separation net according to an embodiment of the present invention;

fig. 4 is a schematic cross-sectional view of a metal separation net according to an embodiment of the present invention.

The reference numbers illustrate:

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

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be 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.

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

In addition, 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 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.

Along with the development of science and technology, people require more and more high to electronic equipment's tone quality, and the speaker module among the electronic equipment receives electronic equipment outward appearance structure's influence, and its volume is also littleer and more. Such as mobile phones, tablet computers, notebook computers, etc., are becoming thinner and lighter, and the space for each device is decreasing. In order to improve the acoustic performance of the speaker module, sound-absorbing particles need to be filled. In the related technology, the structural design of the traditional separation net cloth of PET + double faced adhesive tape + net cloth is restricted and cannot be processed. The Z of speaker module is too little to the height, and the mesh ventilative area that leads to keeping apart the screen cloth is not enough, influences the acoustic performance on the contrary to the cross cutting can't process the cartridge screen cloth of super miniaturation.

Based on the above conception and problems, the present invention provides a speaker module 100. This speaker module 100 improves traditional cartridge isolation screen cloth, and this speaker module 100 adopts metal separation net 2, improves and solves isolation screen cloth area of breathing freely not enough, the unable processing scheduling problem of cross cutting. Meanwhile, the metal isolation net 2 has a changeable shape and a more sufficient adaptive changeable space, and the problem that a terminal customer wants to reduce the size of a device and also wants to improve the performance of the device is solved.

It is understood that the speaker module 100 can be applied to electronic devices, such as mobile phones, portable mobile electronic products such as IPAD, etc., and is not limited herein.

Referring to fig. 1 to 4, in an embodiment of the present invention, the speaker module 100 includes a housing 1, a metal isolation net 2 and a speaker unit 3, wherein the housing 1 is provided with a cavity and a sound outlet 111 communicating with the cavity, the metal isolation net 2 includes a bottom 21 and a side portion 22 disposed around a periphery of the bottom 21, the side portion 22 and the bottom 21 enclose to form a groove 23, the metal isolation net 2 is disposed in the cavity to divide the cavity into a filling cavity and an installation cavity, the installation cavity is communicated with the sound outlet 111, and the filling cavity is used for filling and attracting the speaker unit 3 with particles and is disposed in the installation cavity.

In this embodiment, the housing 1 of the speaker module 100 is used to mount, fix and support the metal separation net 2 and the speaker unit 3, that is, the housing 1 provides a mounting base for the metal separation net 2 and the speaker unit 3. It can be understood that, in order to facilitate installation and protection of the metal separation net 2, the speaker unit 3 and other components, the housing 1 has a cavity or an installation space. Alternatively, the structure of the housing 1 may be a mounting case, a box body or a box body with a cavity.

It can be understood that, in order to facilitate the sound generated by the speaker unit 3 to be smoothly transmitted out of the cavity, the housing 1 is provided with a sound outlet 111 communicating with the cavity. As shown in fig. 1 and fig. 2, the housing 1 includes a first housing 11 and a second housing 12, that is, the housing 1 is separated, and the two parts of the first housing 11 and the second housing 12 are connected to form an integral structure. Of course, in other embodiments, the housing 1 may also be formed by an integral molding method, which is not limited herein.

Optionally, the first shell 11 and the second shell 12 of the shell 1 are both metal pieces, and the first shell 11 and the second shell 12 are in sealing fit to define a containing cavity, that is, the first shell 11 and the second shell 12 are made of a metal material, so that the whole structure of the shell 1 is made of a metal material.

It can be understood that the first shell 11 and the second shell 12 of the shell 1 can be made of thin steel sheets, so that the shell 1 can be designed to be thinner, the volume of the cavity in the shell 1 is greatly increased, the volumes of the front sound cavity and the rear sound cavity enclosed by the speaker unit 3 and the shell 1 are effectively increased, and the acoustic performance, especially the low-frequency acoustic performance, of the speaker module 100 is further improved. Meanwhile, the speaker unit 3 is fixed in the metal housing 1, so that heat dissipation can be achieved through the housing 1 made of a metal material, and the heat dissipation performance of the speaker module 100 is improved.

Alternatively, the sound outlet 111 may be disposed at the bottom of the housing 1, that is, the sound outlet 111 is disposed through the first housing 11 and is communicated with the cavity, so that the speaker module 100 is formed as a positive sound outlet structure. As shown in fig. 2, in the present embodiment, the sound outlet 111 may be disposed at a side portion of the housing 1, that is, the sound outlet 111 penetrates through a side wall of the first housing 11, so that the speaker module 100 is formed in a side sound outlet structure.

In this embodiment, loudspeaker monomer 3 locates the appearance intracavity of casing 1 to acoustic cavity and back acoustic cavity before forming with casing 1 cooperation, loudspeaker monomer 3's vibrating diaphragm is towards preceding acoustic cavity, and preceding acoustic cavity and sound outlet 111 intercommunication, metal spacer net 2 sets up in back acoustic cavity, in order to separate back acoustic cavity for filling chamber and compartment, also be metal spacer net 2 locates the appearance intracavity of casing 1, make metal spacer net 2 will hold the chamber and separate for filling chamber and installation cavity, installation cavity intercommunication sound outlet 111, loudspeaker monomer 3 locates in the installation cavity, the filling chamber is used for filling and attracts the granule.

As shown in fig. 2 to 4, the metal separation net 2 includes a bottom 21 and a side 22, and the side 22 is disposed around the periphery of the bottom 21 so that the side 22 and the bottom 21 enclose a groove 23. It will be appreciated that the metal separation screen 2 is located within the cavity with the grooves 23 of the metal separation screen 2 facing the filling or mounting cavity.

It can be understood that the metal separation net 2 can cover the speaker unit 3, and at this time, part of the speaker unit 3 is accommodated in the groove 23 of the metal separation net 2, so that the bottom 21 and the side 22 of the metal separation net 2, part of the inner wall of the first housing 11 and the second housing 12 enclose to form a filling cavity, and the filling cavity is used for filling sound-absorbing particles, so that the sound-absorbing particles in the filling cavity can be effectively prevented from entering the speaker unit 3 by using the metal separation net 2.

As shown in fig. 2, in this embodiment, the metal separation net 2 may also divide the cavity of the housing 1 into two parts, for example, the cavity is divided along the length direction or the height direction of the housing 1, and the groove 23 of the metal separation net 2 faces the filling cavity or the mounting cavity, so that the cavity of the housing 1 is formed by the filling cavity and the mounting cavity located at two sides of the metal separation net 2 (i.e., the bottom 21 of the metal separation net 2), and the mounting cavity is communicated with the sound outlet 111 for mounting and fixing the speaker unit 3, and the filling cavity is used for filling and attracting particles.

It can be understood that the filling cavity is used for receiving or filling sound-absorbing particles to form a dbas virtual sound cavity, so that sound generated by the speaker unit 3 enters the filling cavity through the metal isolation net 2, and the sound-absorbing particles increase the transmission path thereof, so as to reduce the resonant frequency of the speaker module 100 and improve the audio performance, especially the low-frequency acoustic performance, of the speaker module 100.

In the present embodiment, the metal separation net 2 has a ventilation function. The metal isolation net 2 is made of metal materials. Optionally, the metal separation net 2 is formed by weaving metal wires, so that the metal separation net 2 has a plurality of air holes.

It can be understood that the metal separation net 2 can be formed by stamping according to the structure of the speaker module 100, so as to form a glue coating belt at the bending position, facilitate the glue coating and sealing of the metal separation net 2, facilitate the increase of the strength of the metal separation net 2, better seal the cavity, facilitate the increase of the width of the metal separation net 2, and facilitate the insertion into the shell 1.

In the embodiment, the metal isolation net 2 is formed by weaving metal wires, so that the metal isolation net 2 is uniform in thickness, and occupies a smaller space compared with the traditional inserting isolation net cloth, and the whole metal isolation net 2 can be formed by punching and is not influenced by the minimum width of die cutting and cutting, so that the whole metal isolation net 2 is formed, and the metal isolation net is convenient to process and easy to form; meanwhile, the metal isolation net 2 can deform according to a required structure, and the traditional isolation mesh cloth (such as PET mesh cloth) cannot deform, so that the metal isolation net 2 is less restricted by space, has diversity change and is suitable for more spaces; and metal separation net 2 weaves through the wire and forms for metal separation net 2's overall structure compares in traditional isolation screen cloth (for example PET material screen cloth), and the gas permeability is better, wholly has the bleeder vent, and acoustic performance promotes the degree higher, and the pliability is better, can bend at will, changes the direction, and the associativity is higher.

According to the loudspeaker module 100, the metal isolation net 2 is arranged in the shell 1, the metal isolation net 2 is arranged to be the bottom 21 and the side portion 22 arranged around the periphery of the bottom 21, the side portion 22 and the bottom 21 are enclosed to form the groove 23, so that the metal isolation net 2 divides the containing cavity of the shell 1 into the filling cavity and the installing cavity, the loudspeaker single body 3 is installed and fixed through the installing cavity communicated with the sound outlet 111, sound generated by the loudspeaker single body 3 is smoothly transmitted out through the sound outlet 111, the filling cavity is filled with suction particles, and after the sound generated by the loudspeaker single body 3 enters the filling cavity through the metal isolation net 2, the sound absorption particles are enabled to increase the transmission path of the sound absorption particles, so that the resonance frequency of the loudspeaker module 100 is reduced, and the audio performance, particularly the low-frequency acoustic performance, of the loudspeaker module 100 is improved. Meanwhile, the whole air holes of the metal isolation net 2 are uniformly distributed, so that the air permeability is better, the metal isolation net is not influenced by the minimum width of die cutting, the processing is convenient, the forming is easy, and the metal isolation net is suitable for the small-sized loudspeaker module 100.

In one embodiment, the aperture of each air hole is in the range of 0.03mm to 0.3 mm. As can be appreciated, the metal separation net 2 is formed by weaving metal wires such that air holes exist between the metal wires. Alternatively, the aperture of the vent is 0.03mm, 0.05mm, 0.08mm, 0.1mm, 0.13mm, 0.15mm, 0.18mm, 0.2mm, 0.23mm, 0.25mm, 0.28mm, 0.3mm, etc., which is not limited herein. Of course, the pore diameter of the air holes of the metal separation net 2 is smaller than the diameter of the sound-absorbing particles, thereby effectively preventing the attraction particles from entering the speaker unit 3.

In one embodiment, the thickness of the metal separation net 2 is greater than or equal to 0.05 mm. It can be understood that the metal separation net 2 is entirely formed by weaving metal wires, and the overall thickness of the metal separation net 2 is uniform. The thickness of the metal separation net 2 may be greater than or equal to 0.05mm, alternatively, the thickness of the metal separation net 2 may be greater than or equal to 0.1 mm.

In this embodiment, the metal separation net 2 is formed by weaving metal wires, so that the metal separation net 2 has a certain tensile property, and the maximum tensile dimension of the metal separation net 2 may be about 10 times the thickness of the metal separation net 2, which is not limited herein.

In one embodiment, as shown in fig. 3 and 4, the metal separation net 2 comprises a bottom 21 and side portions 22 arranged around the periphery of the bottom 21, the side portions 22 enclosing the bottom 21 to form a groove 23.

It will be appreciated that the bottom 21 and the side 22 of the metal separation net 2 may alternatively be of an integrally formed construction. The metal separation net 2 may be formed by punching and drawing a bottom 21, a side 22 and a groove 23 enclosed by the bottom 21 and the side 22.

In one embodiment, the metal separation screen 2 is connected to the inner wall of the chamber by gluing and sealing the side portions 22.

It can be understood that when the metal separation net 2 covers the speaker unit 3, the end of the side portion 22 of the metal separation net 2 far away from the bottom portion 21 is connected with the inner wall of the cavity of the housing 1 by gluing and sealing. When the metal separation net 2 divides the cavity of the shell 1 into two parts, the side surface of the side part 22 of the metal separation net 2 is connected with the inner wall of the cavity of the shell 1 in a sealing way by gluing. By the arrangement, the connection stability and the sealing performance of the metal isolation net 2 and the shell 1 can be improved.

In an embodiment, a supporting platform 113 is disposed in the housing 1, the supporting platform 113 encloses a mounting groove 114 communicating with the sound outlet 111, a supporting step 115 is formed on a side of the supporting platform 113 facing the mounting groove 114, the speaker unit 3 is disposed in the mounting groove 114 and supported on the supporting step 115, so that a diaphragm of the speaker unit 3 and the supporting platform 113 enclose a front sound cavity communicating with the sound outlet 111.

In this embodiment, as shown in fig. 2, the housing 1 includes a first housing 11 and a second housing 12, the first housing 11 has an accommodating groove 112 and a sound outlet 111, and the second housing 12 covers a notch of the accommodating groove 112 and encloses with the first housing 11 to form a receiving cavity. Through protruding brace table 113 that is equipped with in the diapire of storage tank 112 for brace table 113 encloses to close and forms the mounting groove 114 that communicates sound outlet 111, thereby utilizes the mounting groove 114 that brace table 113 formed to realize spacing installation to speaker monomer 3.

It can be understood that, by forming the supporting step 115 on the side of the supporting platform 113 facing the mounting groove 114, the speaker unit 3 is disposed in the mounting groove 114 and supported by the supporting step 115, that is, the speaker unit 3 is supported by the supporting step 115, so that the vibrating diaphragm of the speaker unit 3 and the supporting platform 113 enclose to form a front sound cavity communicated with the sound outlet 111.

In one embodiment, the metal isolation net 2 covers the side of the speaker unit 3 facing away from the front acoustic cavity and is connected to the supporting platform 113 to divide the accommodating cavity into a filling cavity and a mounting cavity.

It will be understood that the metal separation net 2 covers or wraps the end of the speaker unit 3 facing away from the diaphragm or the front acoustic cavity, so that the periphery or side portion 22 of the metal separation net 2 is connected to the support stage 113. In the present embodiment, the speaker unit 3 is sealingly connected to the support step 115 by a sealant. The side part 22 of the metal separation net 2 and the support table 113 can be hermetically connected by gluing or sealing glue. At this time, the metal separation net 2 is engaged with the support table 113 to divide the containing chamber into a filling chamber and an installation chamber.

In another embodiment, as shown in fig. 2, the housing 1 is provided with a limiting groove 116 adjacent to the supporting platform 113, at least a portion of the metal isolation net 2 is limited in the limiting groove 116 to divide the receiving cavity into a filling cavity and a mounting cavity, and the supporting platform 113 is located in the mounting cavity.

It can be understood that the limiting groove 116 may be concavely disposed on the inner wall of the cavity, or may be convexly disposed on the inner wall of the cavity, for example, by disposing a protrusion on the inside of the cavity, the protrusion and the inside of the cavity are enclosed to form a groove, etc. The limiting groove 116 may be a plurality of grooves or through grooves arranged at intervals, or may be an annular groove structure arranged annularly. Optionally, the section of the limiting groove 116 is L-shaped, U-shaped, V-shaped, or wedge-shaped, and the like, which is not limited herein.

In this embodiment, as shown in fig. 2, two opposite limiting grooves 116 are disposed in the casing 1 adjacent to the supporting platform 113, two ends of the metal isolation net 2 are respectively limited in the two limiting grooves 116 to divide the containing cavity into a filling cavity and an installation cavity, and the supporting platform 113 is located in the installation cavity.

It can be understood that the two limiting grooves 116 are oppositely disposed, and the connecting line of the two limiting grooves 116 separates the length direction of the housing 1, as shown in fig. 2, the side wall of the accommodating groove 112 is further provided with two limiting grooves 116 oppositely disposed adjacent to the supporting platform 113, the limiting grooves 116 extend along the side wall of the accommodating groove 112 of the first housing 11, the second housing 12 is provided with a positioning groove corresponding to each limiting groove 116, so that two ends of the metal isolation net 2 are respectively limited in the two limiting grooves 116 and the two positioning grooves, at this time, the side portion 22 of the metal isolation net 2 opposite to the bottom walls of the accommodating groove 112 of the second housing 12 and the first housing 11 is hermetically connected with the second housing 12 and the first housing 11, so as to separate the accommodating cavity into a filling cavity and an installation cavity, and the accommodating groove 112 of the first housing 11 is located in the installation cavity.

Of course, in other embodiments, the limiting groove 116 may be disposed on the bottom wall of the accommodating groove 112 of the first housing 11, or disposed on two side walls of the accommodating groove 112 of the first housing 11, and the limiting groove 116 may also be disposed on the bottom wall and the side walls of the accommodating groove 112 of the first housing 11, respectively, which is not limited herein.

As shown in fig. 1 and 2, the housing 1 is configured as two parts, namely a first housing 11 and a second housing 12, so that the assembly of the metal separation net 2, the speaker unit 3 and other parts is facilitated. It can be understood that the first housing 11 and the second housing 12 can be fixedly connected into an integral structure by welding, bonding, or the like in a sealing fit manner, so that the connection stability and the sealing performance of the first housing 11 and the second housing 12 can be improved. Of course, in other embodiments, the first housing 11 and the second housing 12 may also be connected to each other by a detachable connection manner such as a snap connection, a plug-in fit, a screw connection, or a pin connection, so as to facilitate the assembly, disassembly, or replacement of the metal separation net 2, the speaker unit 3, and other components.

It can be understood that, by providing the accommodating groove 112 and the sound outlet 111 communicating with the accommodating groove 112 in the first housing 11, the accommodating groove 112 is utilized to realize the limited installation of the speaker unit 3 and other components. Alternatively, the second housing 12 is a flat plate-like structure. The first housing 11 and the second housing 12 may be fixed by an ultrasonic welding process, or fixed by sealing and bonding, etc., and are not limited herein.

In an embodiment, a step surface 117 is disposed on the notch of the first housing 11 adjacent to the receiving groove 112, and the second housing 12 covers the notch of the receiving groove 112 and is in limit abutment with the step surface 117. It can be understood that, by providing the step surface 117 on the first housing 11, the second housing 12 is supported and limited by the step surface 117, so as to improve the connection sealing performance and ensure the sound of the speaker unit 3 and other components.

Optionally, the metal separation net 2 is connected with the first shell 11 and the second shell 12 by gluing and sealing, that is, the side portion 22 of the metal separation net 2, which is arranged on the periphery of the bottom portion 21, is arranged perpendicular to the bottom portion 21. In this embodiment, the metal separation net 2 is in a rectangular structure, that is, the bottom 21 of the metal separation net 2 is rectangular, the side portion 22 includes four connected parts, the four parts of the side portion 22 are respectively connected with four sides of the bottom 21, two part side portions 22 located at two end positions of the bottom 21 are limited in the two limiting grooves 116 and the two positioning grooves and are in limited abutment with the side wall of the first housing 11, and the two part side portions 22 located at the upper and lower sides of the bottom 21 are respectively connected with the bottom wall of the first housing 11 and the second housing 12 in a sealing manner by gluing.

In an embodiment, the second housing 12 further has a filling hole 121 communicating with the filling cavity, and the speaker module 100 further includes a sealing member 5, wherein the sealing member 5 seals the filling hole 121.

As can be understood, by providing the filling hole 121, the filling cavity is filled with the sound-absorbing particles by conveniently using the filling hole 121. Through setting up shutoff piece 5 to utilize this filling hole 121 of shutoff piece 5 shutoff, avoid inhaling the sound granule and reveal. Optionally, the blocking member 5 is made of PET.

In an embodiment, the first housing 11 further has a damping hole communicating with the filling cavity, and the speaker module 100 further includes a damping member 4, and the damping member 4 covers the damping hole.

It can be understood that the air leakage or ventilation effect on the filling cavity is realized by the damping holes through arranging the damping holes and arranging the damping pieces 4 at the damping holes.

In one embodiment, as shown in fig. 1 and 2, the speaker module 100 further includes a flexible circuit board 6, and a portion of the flexible circuit board 6 extends into the mounting cavity and is electrically connected to the speaker unit 3.

It will be appreciated that the flexible circuit board 6 has an inner pad located within the mounting cavity so that the flexible circuit board 6 is electrically connected to the speaker unit 3 through the inner pad. When casing 1 is the metal casing, the position that the interior perisporium of first casing 11 corresponds interior pad is equipped with insulating isolator to effectively avoid interior pad to be connected with casing 1 through insulating isolator and the condition of appearing the electric leakage. Alternatively, the insulating spacer may be an insulating tape, a mylar film, or the like, which is not limited herein.

It can be understood that the flexible circuit board 6 is further provided with an outer bonding pad, and the outer bonding pad is located at one end of the flexible circuit board 6 extending out of the cavity, so that the flexible circuit board 6 can be connected with an external power supply through the outer bonding pad.

The utility model also provides an electronic device, which comprises a device shell and a loudspeaker module 100, wherein the loudspeaker module 100 is connected with the device shell 1. The specific structure of the speaker module 100 refers to the foregoing embodiments, and since the electronic device adopts all the technical solutions of all the foregoing embodiments, at least all the beneficial effects brought by the technical solutions of the foregoing embodiments are achieved, and no further description is given here. In this embodiment, the electronic device further includes a device housing, and the speaker module 100 is connected to the device housing.

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

Claims

1. A speaker module, characterized in that the speaker module comprises:

the loudspeaker unit is arranged in the mounting cavity.

2. The speaker module as claimed in claim 1, wherein the metal isolation mesh is formed by weaving metal wires, so that the metal isolation mesh has a plurality of ventilation holes.

3. The speaker module as claimed in claim 2, wherein the aperture of each of the air holes is in the range of 0.03mm to 0.3 mm;

4. The speaker module as recited in claim 1, wherein said bottom portion is of integrally formed construction with said side portion;

5. The speaker module as recited in claim 1, wherein said metal spacer mesh is bonded to an inner wall of said cavity by gluing and sealing said side portions.

6. The speaker module as claimed in any one of claims 1 to 5, wherein a supporting platform is disposed in the housing, the supporting platform encloses to form a mounting groove communicating with the sound outlet, a supporting step is formed on a side of the supporting platform facing the mounting groove, the speaker unit is disposed in the mounting groove and supported by the supporting step, such that a diaphragm of the speaker unit and the supporting platform enclose to form a front sound cavity communicating with the sound outlet.

7. The speaker module as claimed in claim 6, wherein the metal isolation mesh covers a side of the speaker unit facing away from the front acoustic cavity and is connected to the support platform to separate the cavity into the filling cavity and the mounting cavity.

8. The speaker module as recited in claim 6, wherein said housing defines a retaining groove adjacent said support ledge, at least a portion of said metal spacer being retained in said retaining groove to separate said cavity into said filling cavity and said mounting cavity, said support ledge being located in said mounting cavity.

9. The speaker module as claimed in any one of claims 1 to 5, wherein the housing comprises:

10. The speaker module as claimed in claim 9, wherein the first housing has a step surface adjacent to the notch of the receiving groove, and the second housing covers the notch of the receiving groove and is in limit abutment with the step surface;

and/or the first shell and the second shell are metal pieces.