CN113132830A

CN113132830A - Loudspeaker and electronic equipment

Info

Publication number: CN113132830A
Application number: CN201911417715.6A
Authority: CN
Inventors: 王波; 麦楷; 闫涛; 徐阳
Original assignee: Honor Device Co Ltd
Current assignee: Honor Device Co Ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2021-07-16

Abstract

The application provides a loudspeaker and electronic equipment for effectively keep apart under the dirty prerequisite of multiple form, reduce the manufacturing cost and the preparation technology degree of difficulty of loudspeaker. The speaker includes first casing, second casing, speaker main part and first dust screen and second dust screen subassembly, wherein: the first shell and the second shell are connected to form a cavity for accommodating the loudspeaker main body, a sound outlet channel is formed in the side wall of the second shell, the first end of the sound outlet channel is communicated with the outside of the loudspeaker, and the second end of the sound outlet channel is communicated with the cavity; the loudspeaker main body is arranged in the cavity; the first dustproof net is arranged at the first end; the second dust screen assembly comprises a support and a second dust screen, the support is arranged on the sound outlet channel, the second dust screen is arranged on the support, and the second dust screen is located on one side, close to the cavity, of the first dust screen.

Description

Loudspeaker and electronic equipment

Technical Field

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

Background

The loudspeaker can be applied to electronic equipment and is used for supporting the electronic equipment to realize an audio output function. Usually, in order to avoid external dust, impurities and the like to enter the loudspeaker, a dustproof structure is often arranged at the sound outlet of the loudspeaker, and at present, the dustproof structure of the loudspeaker generally comprises a single-layer dustproof net and a double-layer dustproof net. The single-layer dustproof net is simple in structure and convenient to install, and can be mainly used for isolating and protecting solid impurities, so that the diameter of the net hole is small, liquid viscous dirt is easily attached to the dustproof net due to the small net hole, and even the dirt and the hole are blocked when the dirt and the hole are serious, and the sound effect of a loudspeaker is influenced; the double-layer dustproof net can effectively isolate and protect solid and liquid dirt by adopting a two-layer net structure with different mesh diameters, so that the defect of the single-layer dustproof net can be avoided, but the manufacturing process difficulty and the production cost of the double-layer dustproof net are relatively high.

Disclosure of Invention

The application provides a loudspeaker and electronic equipment for effectively keep apart under the dirty prerequisite of multiple form, reduce the manufacturing cost and the preparation technology degree of difficulty of loudspeaker.

In a first aspect, the present application provides a speaker, which includes a first housing, a second housing, a speaker main body, a first dust screen, and a second dust screen assembly, wherein the first housing is connectable with the second housing to form a cavity for accommodating the speaker main body; the second shell comprises a side wall, a sound outlet channel is arranged on the side wall, and the sound outlet channel can comprise a first end communicated with the outside of the loudspeaker and a second end communicated with the cavity; the first dustproof net and the second dustproof net are arranged on the sound channel, when the sound channel is implemented, the first dustproof net can be arranged at the first end of the sound channel, the second dustproof net component can comprise a support and a second dustproof net, and the second dustproof net is arranged on the support and located on one side, close to the cavity, of the first dustproof net.

In the scheme, the first dustproof net and the second dustproof net are arranged, so that the overall volume of the loudspeaker cannot be increased, and the cavity space of the loudspeaker cannot be occupied, and the acoustic performance of the loudspeaker can be ensured on the premise of effectively isolating various forms of dirt; in addition, the installation mode of the first dustproof net and the second dustproof net component is simple and convenient, and the first dustproof net and the second dustproof net can realize the normalization of the supplied materials, so that the production cost and the manufacturing process difficulty of the loudspeaker can be reduced by the scheme.

When setting up the speaker main part in the cavity, the edge of the diapire of second casing can be provided with bearing structure, and the speaker main part can set up on this bearing structure, and the diaphragm face of speaker main part sets up towards the diapire of second casing to form the front chamber of speaker between the diapire of speaker main part and second casing, the second end of sound channel specifically can communicate with the front chamber, in order to pass to the outside with the sound that the speaker sent.

When specifically setting up, the support can be including the installation department that is used for supporting the second dust screen, and this installation department can be frame shape structure, and the second dust screen specifically can set up in the installation department and deviate from the first side of cavity. When the second dust screen is fixed with the installation part, the second dust screen can be adhered to the installation part through gum.

In a specific embodiment, an opening may be opened at a position corresponding to the sound emitting channel on a side of the side wall of the second housing facing away from the bottom wall thereof, the mounting portion may be disposed on the sound emitting channel through the opening, and during the specific setting, the mounting portion may be located between the first end and the second end and divide the sound emitting channel into a first channel and a second channel, wherein the first channel is disposed near the first end, and the second channel is disposed near the second end. In this scheme, through setting up the opening, can reduce the installation degree of difficulty of second dust screen subassembly.

During the concrete implementation, above-mentioned opening can correspond the second passageway setting and can expose the second passageway, and the support still can include the fender portion, and this fender portion is concrete can connect the second side towards the cavity on the installation department to the fender portion keeps away from the one end of installation department can extend to the second end of sound channel, closes the opening, also closes the week side of second passageway promptly, can improve the installation convenience of second dust screen subassembly on the one hand like this, and on the other hand can also improve the leakproofness of second passageway.

In addition, when the blocking part is arranged, one end, far away from the installation part, of the blocking part can be connected with the outer wall of the loudspeaker main body in a sealing mode, and therefore the sealing performance between the second end of the sound outlet channel and the front cavity is guaranteed.

In the above scheme, the first housing may include a first metal plate, and the first metal plate may be specifically disposed on a surface of the first housing facing toward or away from the cavity. By adopting the scheme, the high-strength advantage of the first metal plate is utilized, the whole thickness of the first shell can be relatively reduced, and then the cavity space can be increased under the condition that the whole volume of the loudspeaker is not changed, so that the sound effect of the loudspeaker is favorably improved.

Of course, in some other embodiments, the second housing may also include a second metal plate, which may be particularly disposed on the bottom wall of the second housing to reduce the thickness of the bottom wall of the second housing.

In another specific embodiment, the mounting portion may be disposed at the second end of the sound outlet channel, and the second side of the mounting portion may be in sealing connection with the outer wall of the speaker body to ensure the sealing property between the second end of the sound outlet channel and the front cavity.

In the above scheme, the first housing may be made of plastic, and the first housing may be manufactured and molded by an integral injection molding process, so as to simplify the manufacturing process of the speaker; it can be understood that the second housing may also be made of plastic, and the second housing may also be formed by an integral injection molding process.

When the mounting part is arranged, the mounting part can specifically comprise a first frame, a second frame, a third frame and a fourth frame which are connected in sequence, wherein the first frame is opposite to the third frame in position, and the second frame is opposite to the fourth frame in position; the support can also include first structure of buckling, and first structure of buckling can be connected with first frame and be located the first side of installation department, and like this, the part that the second dust screen surpassed first frame just can be connected with first structure of buckling to can increase the bonding area of second dust screen and support.

Similarly, the bracket may further include a second bending structure, and the second bending structure may be connected to the third rim and located on the second side of the mounting portion, so that a portion of the second dust screen beyond the third rim may be connected to the second bending structure, and an adhesion area of the second dust screen to the bracket is increased.

In a specific embodiment, when the installation department sets up between first end and second end, can be provided with first recess in the vocal passageway, the second structure of buckling can assemble in this first recess, can avoid the second structure of buckling to occupy the space in the vocal passageway on the one hand like this, on the other hand still can bond the second dust screen in the crimping of the part crimping of the structure of buckling of second in first recess to can improve the bonding steadiness of second dust screen and support.

In another specific embodiment, when the installation portion is disposed at the second end of the sound outlet channel, the bottom wall of the second housing may be provided with a second groove, and the second bending structure may be assembled in the second groove to prevent the second bending structure from occupying the front cavity space, and in addition, the bonding stability of the second dust screen and the support may be improved.

When specifically setting up, the one side that the lateral wall of second casing deviates from the diapire can have first crimping district, and this first crimping district can be used for with first structure cooperation crimping of buckling, not only can make the bonding of second dust screen and support more firm like this, can also improve the leakproofness between support and the second casing.

In addition, the bracket can also comprise a first extension part and a second extension part, the first extension part and the second extension part can be respectively connected to two ends of the first bending structure, and the first extension part and the second extension part respectively extend towards the second end; the side wall of the second shell, which is far away from the bottom wall, can also be provided with a second crimping area and a third crimping area, the second crimping area can be used for the matching crimping of the first extending part, the third crimping area can be used for the matching crimping of the second extending part, the crimping effect of the first crimping area and the first bending structure is matched, the side wall is far away from the bottom wall, the area on the side wall, which surrounds the opening on the periphery side, is completely contacted with the bracket, and therefore the periphery side of the second channel can be completely sealed.

In the foregoing solution, a side of the side wall of the second casing, which faces away from the bottom wall, may further have a boss structure, and the boss structure may be disposed around the first bending structure, the first extending portion, and the second extending portion. In some possible embodiments, an assembly gap between the boss structure and the first bending structure, and between the first extending portion and the second extending portion may be provided with a filling adhesive, so as to improve the connection strength between the second dust screen assembly and the second housing, and in addition, to improve the air tightness of the sound outlet channel.

In order to guarantee the filling effect of filling glue, two corners of the first bending structure can be respectively of a round corner structure, so that the risk of bubbles in the glue dispensing process is reduced.

In some embodiments, the installation portion may further include a connecting arm disposed between the second frame and the fourth frame, two ends of the connecting arm may be respectively connected to the central positions of the first frame and the third frame, and when the second dust screen is disposed on the installation portion, the second dust screen may be further bonded to the connecting arm, so that the central area of the second dust screen is supported, and the bonding stability between the second dust screen and the installation portion may be further improved.

In some embodiments, the mesh diameter of first dust screen can be greater than the mesh diameter of second dust screen, thus, the dirty accessible of the thick class of liquid first dust screen gets into the passageway of making a sound, avoid piling up on first dust screen and adhere to, and the second dust screen then can carry out the separation to the solid impurity through first dust screen, avoid solid impurity to get into the cavity, consequently, through the combined action of first dust screen and second dust screen, can be under the prerequisite that does not influence the audio of speaker, realize dirty and solid impurity dual protection to liquid.

In a second aspect, the present application further provides an electronic device, where the electronic device includes a casing and a speaker according to any one of the possible embodiments of the first aspect, the speaker is disposed in the casing, and a sound outlet is formed in a position of the casing corresponding to a sound outlet channel of the speaker, so that sound emitted by the speaker can be transmitted to the outside of the electronic device through the sound outlet. The sound effect of the electronic equipment is better, and the production cost of the whole machine can be reduced.

Drawings

Fig. 1 is a partial sectional view of a speaker according to the prior art;

FIG. 2 is a schematic diagram of another speaker in the prior art;

fig. 3 is an exploded view of a speaker according to an embodiment of the present application;

fig. 4 is a side view of a speaker provided in an embodiment of the present application;

fig. 5 is a cross-sectional view of the loudspeaker shown in fig. 4 in the direction a-a;

fig. 6 is a schematic structural diagram of a second dust screen assembly according to an embodiment of the present application;

fig. 7 is a schematic structural diagram of a second housing according to an embodiment of the present application;

fig. 8 is a schematic view illustrating an assembly structure of a second housing and a second dust screen assembly according to an embodiment of the present disclosure;

fig. 9 is a partial cross-sectional view of a speaker according to an embodiment of the present application;

fig. 10 is a partial cross-sectional structural view of an electronic device according to an embodiment of the present application;

fig. 11 is an exploded view of a speaker according to another embodiment of the present application;

fig. 12 is a side view of a speaker according to another embodiment of the present application;

fig. 13 is a cross-sectional view of the speaker of fig. 12 in the direction B-B;

fig. 14 is a schematic structural view of a second dust screen assembly according to another embodiment of the present application;

fig. 15 is a schematic structural diagram of a second housing according to another embodiment of the present application;

fig. 16 is a schematic view illustrating an assembly structure of a second housing and a second dust screen assembly according to another embodiment of the present disclosure;

fig. 17 is a partial cross-sectional view of a speaker according to another embodiment of the present application;

fig. 18 is a partial structural sectional view of an electronic device according to another embodiment of the present application.

Reference numerals:

the prior art comprises the following steps:

001-a first shell; 002-a second shell; 011-a speaker body; 012-a stent; 013-a first dust screen;

014-second dust screen; 015-first sound outlet; 016-second sound outlet; 003-shell; 031-cavity;

032-a speaker body; 033-a first dust screen; 034-second dust screen; 035-sound outlet;

the embodiment of the application comprises the following parts:

100-a loudspeaker; 10-a first housing; 20-a second housing; 30-a speaker body; 40-a first dust screen;

50-a second dust screen assembly; 60-a cavity; 21-bottom wall; 22-a side wall; 23-a support structure; 24-a sound channel;

241-a first end; 242-a second end; 243-first channel; 244 — a second channel; 25-the anterior chamber; 11-a first plastic body;

12-a first metal plate; 26-a second plastic body; 27-a second metal plate; 41-a sealing gasket; 51-a scaffold;

52-second dust screen; 53-an installation part; 54-blocking part; 55-gum; 531-first border; 532-a second bezel;

533-third frame; 534-fourth border; 535-first side; 536-a second side; 537-linker arm;

538-a first bending structure; 539-second folded configuration; 5351-a first positioning column; 56-a first extension;

57-a second extension; 245-a support wall; 246 — a first groove; 211-a second recess; 221-opening;

222 — a first crimping zone; 223-a second crimping zone; 224-a third crimping zone; 225-boss configuration;

226-second location column; 5381-locating holes; 227-assembly gap; 58-glue; 200-a housing; 210-sound outlet.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more clear, the present application will be further described in detail with reference to the accompanying drawings.

In order to facilitate understanding of the speaker provided in the embodiments of the present application, an application scenario thereof is first described below. The loudspeaker provided by the embodiment of the application can be applied to electronic equipment and used for enabling the electronic equipment to realize an audio output function, wherein the electronic equipment can be a mobile phone, a tablet computer, a notebook computer or a wearable device and other common terminals in the prior art. The loudspeaker usually includes shell and speaker main part, speaker main part set up in the shell and can with the shell between form antechamber and back chamber, the speaker during operation, the vibrating diaphragm of speaker main part promotes the air disturbance in the antechamber through the vibration, and then produces resonance and sends out and produce sound with the air in the antechamber, sound accessible set up on the shell with the play sound passageway of antechamber intercommunication spread, finally realize the sound production of speaker. When the loudspeaker is installed in the electronic equipment, the shell of the electronic equipment is provided with the opening hole, and the opening hole is communicated with the sound outlet hole of the loudspeaker, so that sound emitted by the loudspeaker can be further transmitted to the outside of the electronic equipment through the opening hole. Generally, in order to prevent dirt such as external dust and impurities from entering the speaker through the opening, a dustproof structure is generally arranged near the sound outlet of the speaker so as to separate the dirt outside the speaker and ensure that internal components of the speaker can work normally.

At present, the dustproof construction of speaker includes two kinds of forms of individual layer dust screen and double-deck dust screen, and wherein, the individual layer dust screen has advantages such as simple structure, the installation of being convenient for, and mainly used realizes the separation effect to solid particulate matter, and consequently its mesh diameter is general less, and the mesh diameter is little again leads to the dirty attached to dust screen of liquid ropy class easily, can cause dirty stifled hole phenomenon even when serious, influences the audio of speaker.

The double-layer dustproof net can effectively block dirt in different forms by adopting a two-layer net structure with different mesh diameters, so that the defect of the single-layer dustproof net is overcome. Referring to fig. 1, fig. 1 is a partial structure cross-sectional view of a speaker in the prior art, the speaker includes a first housing 001, a second housing 002, and a speaker main body 011 disposed in a space formed by connecting the first housing 001 and the second housing 002, a support 012, a first dust screen 013 and a second dust screen 014, wherein a first sound hole 015 communicating with a front cavity is formed in a side wall of the first housing 001, a second sound hole 016 communicating with the first sound hole is formed in a side wall of the second housing 002, the speaker main body 011 is fixed on the first housing 001 through the support 012, the first dust screen 013 is fixed between the side wall of the first housing 001 and the side wall of the second housing 002, and the second dust screen 014 is fixed between the support 012 and the side wall of the first housing 001.

In the speaker shown in fig. 1, the bracket 012 is arranged inside the speaker, which occupies the front cavity space of the speaker on one hand, and reduces the sound effect of the speaker greatly; on the other hand, the addition of the bracket 012 can prevent the whole speaker from being normalized in the supplied material, and the speaker has high requirement on the position precision of each part in the assembling process, so that the automation is difficult to realize during the installation, and the additional production cost is increased.

Referring to fig. 2, fig. 2 is a schematic structural diagram of another speaker in the prior art, the speaker includes a housing 003, and a speaker main body 032, a first dust screen 033 and a second dust screen 034 disposed in a cavity 031 of the housing 003, wherein the housing 003 is provided with a sound outlet 035 communicated with the cavity 031, the speaker main body 032 is disposed at an end of the cavity 031 far away from the sound outlet 035, the first dust screen 033 is disposed at the sound outlet 035, the second dust screen 034 is disposed between the speaker main body 032 and the sound outlet 035, and in implementation, the second dust screen 034 is integrally formed with the housing 003 by a hot-melt injection molding process.

In the loudspeaker shown in fig. 2, the hot-melt injection molding technique for forming the second dust screen 034 is expensive in process cost, so that the manufacturing cost of the whole loudspeaker is high, and the loudspeaker is not suitable for middle-end and low-end electronic equipment; in addition, the dust screen meeting the technical requirements of hot melt injection molding needs to be made of high temperature resistant materials, so that the manufacturing cost of the whole loudspeaker is further increased, and the incoming material normalization of the first dust screen 033 and the second dust screen 034 cannot be realized.

Based on this, this application embodiment provides an adopt speaker of double-deck dust screen structure, and this speaker can be under the dirty prerequisite of effectively keeping apart multiple form, reduction in production cost and the preparation technology degree of difficulty.

Referring to fig. 3, fig. 3 is an exploded view of a speaker according to an embodiment of the present application. The loudspeaker comprises a first shell 10, a second shell 20, a loudspeaker main body 30, a first dust screen 40 and a second dust screen assembly 50, wherein the first shell 10 can be connected with the second shell 20 to form a cavity 60 for accommodating the loudspeaker main body 30, the second shell 20 can specifically comprise a bottom wall 21 and a side wall 22 surrounding the bottom wall, a supporting structure 23 for bearing the loudspeaker main body 30 is arranged at the edge of the bottom wall 21, a sound outlet channel 24 is formed in the side wall 22, the sound outlet channel 24 comprises a first end 241 and a second end 242, when the loudspeaker is specifically arranged, the first end 241 can be communicated with the outside of the loudspeaker, the second end 242 can be communicated with the cavity 60, and the first dust screen 40 and the second dust screen assembly 50 can be respectively arranged on the sound outlet channel 24 to perform double dust-proof isolation between the inside and the outside of the loudspeaker.

Referring to fig. 4 and 5, fig. 4 is a side view of a speaker provided in an embodiment of the present application, and fig. 5 is a sectional view of the speaker shown in fig. 4 in a direction a-a. When the speaker body 30 is disposed in the cavity 60, the diaphragm surface of the speaker body 30 may be disposed toward the bottom wall 21 of the second housing 20, and the edge of the speaker body 30 may be supported on the supporting structure 23, and a certain height difference may exist between the supporting structure 23 and the bottom wall 21, so that an air cavity, which is the front cavity 25 of the speaker, is formed between the diaphragm surface of the speaker body 30 and the bottom wall 21.

The specific material of the first housing 10 is not limited, for example, in an embodiment of the present application, the first housing 10 includes a first plastic main body 11 and a first metal plate 12, the first metal plate 12 may be disposed on a surface of the first plastic main body 11 facing the cavity 60, or may also be disposed on a surface of the first plastic main body 11 facing away from the cavity 60, for example, in the embodiment shown in fig. 5, the first metal plate 12 is disposed on a surface of the first plastic main body 11 facing away from the cavity 60. First metal sheet 12 can be used to carry out the reinforcement to first plastic main part 11, and like this, the thickness of first plastic main part 11 just can be designed for relatively littleer to make the whole thickness of first casing 10 also less, and then can increase cavity 60 space under the unchangeable condition of the whole volume of speaker, be favorable to improving the audio of speaker.

The material of the second housing 20 is not limited, and similarly, the second housing 20 may include a second plastic main body 26 and a second metal plate 27, and the second metal plate 27 is disposed on the bottom wall 21, and when the second metal plate 27 is disposed on the bottom wall 21, the second metal plate 27 may be disposed on a surface of the bottom wall 21 facing the cavity 60, or may be disposed on a surface of the bottom wall 21 facing away from the cavity 60, for example, in the embodiment shown in fig. 5, the second metal plate 27 is disposed on a surface of the bottom wall 21 facing the cavity 60. The second metal plate 27 may be used to reinforce the bottom wall 21. Similarly, by adopting the scheme, the thickness of the bottom wall 21 can be designed to be relatively smaller, so that the space of the cavity 60 can be increased under the condition that the whole volume of the loudspeaker is not changed, and the sound effect of the loudspeaker is favorably improved; further, in order to enhance the reinforcing effect of the second metal plate 27, the edge of the second metal plate 27 may also extend into the side wall 22 of the second case 20.

In this embodiment, the first dust-proof net 40 may be specifically disposed at the first end 241 of the sound-emitting channel 24 to perform a first layer of dust-proof isolation on the speaker, and in specific implementation, the edge of the first dust-proof net 40 may be bonded and fixed to the outer sidewall of the second housing 20 through a back adhesive, so as to improve the mounting firmness of the first dust-proof net 40; in addition, on the side of the first dust-proof net 40 away from the second housing 20, the edge of the first dust-proof net 40 may further be bonded with an annular gasket 41, and the gasket 41 may specifically be made of foam, so that when the speaker is installed in the electronic device, the gasket 41 may be pressed between the outer side wall of the second housing 20 and a structure inside the electronic device, thereby sealing the sound outlet channel 24 and the internal space of the electronic device. The second dust-proof net assembly 50 may include a bracket 51 and a second dust-proof net 52 disposed on the bracket 51, when the second dust-proof net assembly is disposed, in order to avoid the second metal plate 27 extending into the sidewall 22, a certain distance is provided between a structure on the bracket 51 for supporting the second dust-proof net 52 and the second end 242 of the sound-emitting channel 24, at this time, the bracket 51 is disposed in the sound-emitting channel 24 and may divide the sound-emitting channel 24 into two parts, namely a first channel 243 near the first end 241 and a second channel 244 near the second end 242, respectively, and the first channel 243 and the second channel 244 may be separated by the second dust-proof net 52 in a dust-proof manner.

The mesh diameters of the first dust-proof net 40 and the second dust-proof net 52 are different, specifically, the mesh diameter of the first dust-proof net 40 is relatively large, so that liquid viscous dirt can enter the first channel through the first dust-proof net 40, and the dirt can be prevented from being attached to the first dust-proof net 40; the second dust screen 52 has a relatively small mesh diameter, so that solid impurities entering the first channel 243 can be blocked, and the solid impurities are prevented from entering the cavity 60. Through the combined action of first dust screen 40 and second dust screen 52, can realize dirty and the solid impurity dual protection of liquid under the prerequisite that does not influence the audio of speaker.

When specifically setting, the mesh diameter of the first dust screen 40 may not be less than 120um, for example, the specific design value may be 120um, 125um, 130um, and so on; the mesh diameter of the second dust screen 52 may be not more than 30um, for example, the specific design value may be 30um, 25um, 20um, and so on.

It should be noted that the liquid dirt passing through the first dust screen 40 is generally stored in the first passage 243, and in order to avoid the first passage 243 being blocked, the length of the first passage 243 may be increased as much as possible in design, that is, the distance between the first dust screen 40 and the second dust screen 52 may be relatively large, so that when the second dust screen assembly 50 is disposed, the second dust screen assembly 50 may be disposed as close to the cavity 60 as possible without interfering with the second metal plate 27. For example, in the embodiment of the present application, the distance between the first dust-proof net 40 and the second dust-proof net 52 may be not less than 1mm, and the specific design value may be 1mm, 1.1mm, 1.2mm, or the like.

Referring to fig. 6, fig. 6 is a schematic structural diagram of a second dust screen assembly according to an embodiment of the present disclosure. In the embodiment of the present application, the bracket 51 may have a substantially L-shaped structure, and includes a mounting portion 53 and a blocking portion 54 connected to the mounting portion 53, where the mounting portion 53 may specifically have a frame-shaped structure, and includes a first rim 531, a second rim 532, a third rim 533 and a fourth rim 534 connected in sequence, where the first rim 531 is opposite to the third rim 533, and the second rim 532 is opposite to the fourth rim 534; the blocking portion 54 may be specifically connected to the first frame 531, and when disposed, the blocking portion 54 is located on one side of the mounting portion 53, and the other side of the mounting portion 53 may be used to fix the second dust-proof net 52, for convenience of description, the side of the mounting portion 53 where the second dust-proof net 52 is fixed is referred to as a first side 535, and the side connected to the blocking portion 54 is referred to as a second side 536. When the second dust screen 52 is fixedly connected to the mounting portion 53, the second dust screen assembly 50 may further include a back adhesive 55, so that the second dust screen 52 may be adhered to the frame of the mounting portion 53 through the back adhesive 55.

In order to improve the connection strength between the second dust screen 52 and the mounting portion 53, the mounting portion 53 may further include a connection arm 537 located between the second frame 532 and the fourth frame 534, and during specific setting, two ends of the connection arm 537 may be respectively connected to the central positions of the first frame 531 and the third frame 533, so that when the second dust screen 52 is disposed on the mounting portion 53, the second dust screen 52 may further be bonded to the connection arm 537, thereby realizing the support of the central region of the second dust screen 52, and further improving the bonding stability between the second dust screen 52 and the mounting portion 53.

As shown in fig. 6, the mounting portion 53 may be provided with a first bending structure 538 connected to the first frame 531, and the first bending structure 538 may be specifically located on the first side 535 of the mounting portion 53. With such a design, the size of the second dust screen 52 can be increased accordingly, so that the portion of the second dust screen 52 beyond the first frame 531 of the mounting portion 53 can be bonded to the first bending structure 538, that is, the bonding area between the second dust screen 52 and the mounting portion 53 can be extended from the frame of the mounting portion 53 to the first bending structure 538, thereby increasing the bonding area between the second dust screen 52 and the bracket 51 and improving the bonding stability between the second dust screen 52 and the bracket 51.

Similarly, the mounting portion 53 may further be provided with a second bending structure 539 connected to the third frame 533, and the second bending structure 539 may be specifically located on the second side 536 of the mounting portion 53, so that a portion of the second dust screen 52 beyond the third frame 533 of the mounting portion 53 may be bonded to the second bending structure 539, so as to increase a bonding area between the second dust screen 52 and the bracket 51, and improve bonding stability between the second dust screen 52 and the bracket 51.

In order to ensure the installation position of the second dust screen on the installation portion 53, the first side 535 of the installation portion 53 further has a first positioning post 5351, in specific implementation, the first positioning post 5351 may be disposed on the first rim 531, a through hole may be opened at a corresponding position of the second dust screen 52, and when the second dust screen 52 is disposed on the installation portion 53, the second dust screen 52 is positioned by the insertion of the first positioning post 5351 and the through hole. The number of the first positioning posts 5351 is not limited, for example, in the embodiment shown in fig. 6, there are two first positioning posts 5351, and the two first positioning posts 5351 can be respectively disposed at two ends of the first frame 531 to further ensure the installation accuracy of the second dust screen 52.

In addition, the bracket 51 further includes a first extending portion 56 and a second extending portion 57, the first extending portion 56 and the second extending portion 57 are respectively connected to two ends of the first bending structure 538, and the first extending portion 56 and the second extending portion 57 respectively extend in the same direction as the blocking portion 54, with this design, the first extending portion 56 and the second extending portion 57 respectively exceed the second frame 532 and the fourth frame 534, and when the second dust screen assembly 52 is mounted on the second housing, the first extending portion 56 and the second extending portion 57 can be respectively connected with the second housing in a sealing manner to seal the sound outlet channel.

In the embodiment of the present application, the material of the bracket 51 is not limited, for example, in a specific embodiment, the bracket 51 may be made of a plastic material, so that the incoming material normalization of the bracket 51 and the plastic main bodies of the first housing and the second housing can be realized, which is beneficial to reducing the production cost of the speaker. It can be understood that when the bracket is made of plastic, the bracket 51 can be formed by an integral injection molding process, so that the manufacturing process can be simplified.

Referring to fig. 7, fig. 7 is a schematic structural diagram of a second housing according to an embodiment of the present disclosure. When the sound emitting channel 24 is formed on the second housing 20, as mentioned above, the sound emitting channel 24 may include the first channel 243 and the second channel 244, wherein the first channel 243 may be specifically a hole-shaped channel, and the cross-sectional shape of the first channel 243 is not limited, and may be, for example, a circle, an ellipse, a rectangle, a trapezoid, or the like. It is understood that, in order to improve the structural strength of the second casing 20, the first channel 243 may further have a supporting wall 245 disposed along the extending direction of the first channel 243, and the supporting wall 245 may be particularly supported at a central region of the first channel 243 to ensure a supporting effect.

When the second passage 244 is provided, in order to facilitate the installation of the second dust screen assembly 50, an opening 221 is opened on a side of the side wall 22 of the second housing 20 away from the bottom wall 21 thereof, and the opening 221 is disposed corresponding to an area of the second passage 244, so as to expose the second passage 244. A first groove 246 is formed in the second channel 244 and is engaged with the second bending structure 539, when the second dust screen assembly 50 is mounted on the second housing 20, the first side 535 of the mounting portion 53 is disposed toward the first channel 243, and the second side 536 is disposed toward the cavity 60, so that the blocking portion 54 can close the opening 221, i.e., close the peripheral side of the second channel 244; and through assembling second bending structure 539 in first recess 246, can avoid on the one hand second bending structure 539 to occupy the space in the second channel 244, be favorable to improving the audio of speaker, on the other hand can also be with the second dust screen 52 in the crimping of the part of second bending structure 539 in first recess 246 to can improve the bonding steadiness of second dust screen 52 and support 51.

In addition, one surface of the side wall 22, which is away from the bottom wall 21, is provided with a first crimping region 222 which is matched with the first bending structure 538, the first bending structure 538 can be abutted against the first crimping region 222, and a part of the second dust-proof net 52, which is adhered to the first bending structure 538, is crimped in the first crimping region 222, so that the adhesion between the second dust-proof net 52 and the bracket 51 can be firmer, and the sealing performance between the bracket 51 and the second shell 20 can be improved.

Similarly, the side wall 22 facing away from the bottom wall 21 may be further provided with a second crimping region 223 engaged with the first extending portion 56, and a third crimping region 224 engaged with the second extending portion 57, when the second dust screen assembly 50 is mounted on the second housing 20, the first extending portion 56 may abut against the second crimping region 223, and the second extending portion 57 may abut against the third crimping region 224, so that, in cooperation with the aforementioned abutting action of the first bending structure 538 and the first crimping region 222, on the side wall 22 facing away from the bottom wall 21, the region of the side wall 22 around the circumferential side of the opening 221 is in full contact with the bracket 51, so that the circumferential side of the second passage 244 can be completely sealed.

In addition, a side wall 22 facing away from the bottom wall 21 may further have a boss structure 225, the boss structure 225 may be disposed around the first crimping region 222, the second crimping region 223 and the third crimping region 224, and when the second dust screen assembly 50 is mounted on the second housing 20, the boss structure 225 may be blocked outside the first bending structure 538, the first extending portion 56 and the second extending portion 57, so as to improve the sealing performance.

In order to ensure the installation position of the second dust screen assembly 50 on the second housing 20, the first press-connection region 223 is further provided with a second positioning post 226, the first bending structure 538 is correspondingly provided with a positioning hole 5381, and the second dust screen assembly 50 can be positioned by inserting and matching the second positioning post 226 and the positioning hole 5381.

It is understood that in other embodiments of the present application, the second positioning pillars 226 may also be disposed in the second crimping region 223 or the third crimping region 224; alternatively, in order to improve the positioning accuracy, the number of the second positioning pillars 226 may be plural, and the plural second positioning pillars 226 may be respectively disposed in any two regions of the first crimping region 222, the second crimping region 223 and the third crimping region 224; further alternatively, the second positioning posts 226 can be disposed in the first crimping region 222, the second crimping region 223, and the third crimping region 224, respectively, which is not limited in this application, and only the positioning holes 5381 corresponding to the second positioning posts 226 one to one need to be formed on the first bending structure 538.

Referring to fig. 8, fig. 8 is a schematic view of an assembly structure of a second housing and a second dust screen assembly according to an embodiment of the present disclosure. After the second dust screen assembly 50 is mounted on the second housing 20, a certain assembly gap 227 exists between the first bending structure 538, the first extending portion 56, the second extending portion 57 and the boss structure 225 of the bracket, and the assembly gap 227 can be filled with filling glue, which can improve the connection strength between the second dust screen assembly 50 and the second housing 20 and improve the air tightness of the second channel 244. The filling glue body can be formed through a glue dispensing process, and in order to guarantee the filling effect of the glue, in the embodiment of the application, two corners of the first bending structure 538 can be designed into a round corner structure respectively, so that the risk of bubbles in the process of dispensing glue in a small amount is reduced.

Referring to fig. 9, fig. 9 is a partial cross-sectional view of a speaker according to an embodiment of the present application. In this embodiment, in order to ensure the sealing performance between the second end 242 of the sound outlet channel 24 and the front cavity 25, the end of the blocking portion 54 away from the mounting portion 53 and the outer wall of the speaker main body 30 may be sealed by glue 58.

When assembling the speaker, firstly, the speaker body 30 is disposed on the supporting structure 23 in the second housing 20, then the first dust-proof net 40 is fixed at the first end 241 of the sound-emitting channel 24, and the second dust-proof net assembly 50 is disposed in the sound-emitting channel 24, the peripheral side of the second channel 244 is closed by the blocking portion 54 of the second dust-proof net assembly, then the adhesive dispensing sealing is performed in the assembling gap 227 between the mounting portion 53 and the second housing 20, and the end of the blocking portion 54 away from the mounting portion 53 is bonded and sealed with the speaker body 30 through the glue 58, so as to realize the sealing between the second end 242 of the sound-emitting channel 24 and the cavity 60, and finally, the first housing 10 is covered on the side of the speaker body 30 departing from the second housing 20, and the first housing 10 is fixedly connected with the second housing 20.

In summary, according to the speaker provided by the embodiment of the present application, the first dust screen is disposed at the end of the sound outlet channel, and the second dust screen assembly is disposed in the sound outlet channel, so that effective isolation and protection of various forms of dirt can be achieved, and the arrangement of the first dust screen and the second dust screen does not increase the overall volume of the speaker or occupy the front cavity space of the speaker, thereby ensuring the acoustic performance of the speaker; in addition, the installation mode of the first dust screen and the second dust screen assembly is also simple and convenient, and the first dust screen and the second dust screen can be made of conventional dust screen materials, so that incoming material normalization can be realized, and the production cost and the manufacturing process difficulty of the loudspeaker can be reduced by the scheme.

Referring to fig. 10, an embodiment of the present application further provides an electronic device, where the electronic device may be a common terminal in the prior art, such as a mobile phone, a tablet computer, a notebook computer, or a wearable device. The electronic device comprises a housing 200 and the speaker 100 in any of the above embodiments, the speaker 100 is disposed in the housing 200, and a sound outlet 210 is disposed on the housing 200 at a position corresponding to the sound outlet channel 24 of the speaker, so that the sound emitted by the speaker 100 can be transmitted to the outside of the electronic device through the sound outlet 210. The sound effect of the electronic equipment is better, and the production cost of the whole machine can be reduced.

The present application further provides a speaker, as shown in fig. 11, where fig. 11 is an exploded view of the speaker. The loudspeaker comprises a first shell 10, a second shell 20, a loudspeaker main body 30, a first dust screen 40 and a second dust screen assembly 50, wherein the first shell 10 can be connected with the second shell 20 to form a cavity 60 for accommodating the loudspeaker main body 30, the second shell 20 specifically comprises a bottom wall 21 and a side wall 22 surrounding the periphery of the bottom wall 21, a supporting structure 23 for bearing the loudspeaker main body 30 is arranged at the edge of the bottom wall 21, a sound outlet channel 24 is formed in the side wall 22, the sound outlet channel 24 comprises a first end 241 and a second end 241, when the loudspeaker is specifically arranged, the first end 241 can be communicated with the outside of the loudspeaker, the second end 242 can be communicated with the cavity 60, and the first dust screen 40 and the second dust screen assembly 50 can be respectively arranged on the sound outlet channel 24 to perform double dust-proof isolation between the inside and the outside of the loudspeaker.

Referring to fig. 12 and 13, fig. 12 is a side view of a speaker according to another embodiment of the present application, and fig. 13 is a cross-sectional view of the speaker shown in fig. 12 in a direction B-B. When the speaker body 30 is disposed in the cavity 60, the diaphragm surface of the speaker body 30 may be disposed toward the bottom wall 21 of the second housing 20, and the edge of the speaker body 30 may be supported on the supporting structure 23, and a certain height difference may exist between the supporting structure 23 and the bottom wall 21, so that an air cavity, which is the front cavity 25 of the speaker, is formed between the diaphragm surface of the speaker body 30 and the bottom wall 21.

In the embodiment of the present application, the first casing 10 may be integrally made of a plastic material, and in specific implementation, the first casing 10 may be manufactured and molded by an integral injection molding process; the second housing 20 can be integrally made of plastic material, and similarly, the second housing 20 can also be manufactured by an integral injection molding process.

In the embodiment of the present application, the first dust-proof net 40 may be disposed at the first end 241 of the sound-emitting channel 24, and is used for performing a first layer of dust-proof isolation on the speaker, and the specific structure and the installation manner of the first dust-proof net 40 may be similar to those in the foregoing embodiments, and will not be described herein again; the second dust screen assembly 50 may include a bracket 51 and a second dust screen 52, and in particular embodiments, the second dust screen assembly 50 may be disposed at the second end 242 of the sound outlet channel 24 for providing a second layer of dust isolation for the speaker.

The design of the mesh diameters of the first dust-proof net 40 and the second dust-proof net 52 can refer to the previous embodiment, and the detailed description is omitted here.

Furthermore, in the above-described embodiment, since the distance between the first dust-proof mesh 40 and the second dust-proof mesh 52 (i.e., the length of the sound-emitting channel) is relatively large, the speaker is also relatively strong in the capability of isolating and protecting against liquid contamination.

Referring to fig. 14, fig. 14 is a schematic structural diagram of a second dust screen assembly according to another embodiment of the present application. The bracket 51 may include a mounting portion 53 having a frame-shaped structure, the mounting portion 53 including a first rim 531, a second rim 532, a third rim 533 and a fourth rim 534 connected in sequence, wherein the first rim 531 is opposite to the third rim 533, and the second rim 532 is opposite to the fourth rim 534; the second dust screen 52 is disposed on one side of the mounting portion 53, and when the second dust screen 52 is fixedly connected to the mounting portion 53, the second dust screen assembly 50 may further include a back adhesive 55, so that the second dust screen 52 may be adhered to a frame of the mounting portion 53 through the back adhesive 55. For convenience of description, a side of the mounting portion 53 on which the second dust screen 52 is provided will be referred to as a first side 535, and a side of the mounting portion 53 opposite to the first side 535 will be referred to as a second side 536.

Similar to the previous embodiment, in order to improve the connection strength between the second dust screen 52 and the mounting portion 53, the mounting portion 53 may further include a connecting arm 537, and when the connecting arm 537 is specifically disposed, both ends of the connecting arm 537 may be respectively connected to the central positions of the first side frame 531 and the third side frame 533, so that when the second dust screen 52 is disposed on the mounting portion 53, the second dust screen 52 may further be bonded to the connecting arm 537, thereby realizing the support of the central region of the second dust screen 52, and further improving the bonding stability between the second dust screen 52 and the mounting portion 53.

In addition, the bracket 51 may further include a first bending structure 538 and a second bending structure 539, the first bending structure 538 is connected to the first rim 531, the second bending structure 539 is connected to the third rim 533, and when set, the first bending structure 538 and the second bending structure 539 are respectively located on the first side 535 and the second side 536 of the mounting portion 53. Through setting up first structure 538 and the second structure 539 of buckling, can increase the size of second dust screen 52 correspondingly, make the part that second dust screen 52 surpass first frame 531 can bond with first structure 538 of buckling, surpass the part of third frame 533 of installation department 53 can bond with second structure 539 of buckling to increase the bonding area of second dust screen 52 and support 51, improve both's bonding steadiness.

As shown in fig. 14, the bracket 51 further includes a first extending portion 56 and a second extending portion 57 respectively connected to two ends of the first bending structure 538, the first extending portion 56 and the second extending portion 57 respectively exceed the second frame 532 and the fourth frame 534, and when the second dust screen assembly 50 is mounted on the second housing, the first extending portion 56 and the second extending portion 57 can be respectively connected to the second housing in a sealing manner, so as to improve the sealing performance of the sound outlet channel.

In the embodiment of the present application, the material of the bracket 51 is not limited, for example, in a specific embodiment, the bracket 51 may be made of steel, and since the strength of the steel is high, the thickness of the bracket 51 may be designed to be relatively thin, which is beneficial to reducing the occupied space of the second dust screen assembly 50 in the speaker. It can be understood that, when the bracket 51 is made of steel, the bracket 51 may be formed through an integral bending process, so that the manufacturing process may be simplified.

Please refer to fig. 15, in which fig. 15 is a schematic structural diagram of a second housing according to another embodiment of the present disclosure. When the second housing forms the sound emitting channel 24, the sound emitting channel 24 may be specifically in a hole-shaped structure, and the cross-sectional shape of the sound emitting channel 24 may be circular, oval, or rectangular, trapezoidal, and the like. It will be appreciated that, in order to increase the structural strength of the second housing 20, the sound outlet channel may further have a support arm 245 disposed along the extending direction thereof, and the support arm 245 may be supported particularly at the central region of the sound outlet channel 24 to ensure the supporting effect.

The second recess 211 that matches with second bending structure 539 is seted up to the diapire 21 of second casing 20, when installing second dust screen subassembly 50 on second casing 20, the first side 535 of installation department 53 sets up towards sound channel 24, second side 536 then sets up towards cavity 60, second bending structure 539 can assemble in second recess 211, can avoid second bending structure 539 to occupy the front cavity space on the one hand like this, be favorable to improving the audio of speaker, on the other hand can also bond second dust screen 52 in the crimping of the part crimping of second bending structure 539 in second recess 211, thereby can improve the bonding steadiness of second dust screen 52 and support 51.

With continued reference to fig. 15, a first crimping region 222, a second crimping region 223 and a third crimping region 224 may be disposed on a side of the side wall 22 facing away from the bottom wall 21, and similar to the previous embodiment, when the second dust screen assembly 50 is mounted on the second housing 20, the first bending structure 538, the first extending portion 56 and the second extending portion 57 of the bracket 21 may be respectively crimped with the three crimping regions, so as to improve the adhesion between the second dust screen 52 and the bracket 51 and the sealing between the bracket 51 and the second end 242 of the sound outlet channel 24.

In order to ensure the installation position of the second dust screen assembly 50 on the second housing 20, the first press-connection region 223 is further provided with a positioning post 226, the first bending structure 538 is correspondingly provided with a positioning hole 5381, and the second dust screen assembly 50 can be positioned by inserting and matching the positioning post 226 and the positioning hole 5381.

Referring to fig. 16, fig. 16 is a schematic view illustrating an assembly structure of a second housing and a second dust screen assembly according to another embodiment of the present disclosure. Certain assembly gaps 227 exist among the first bending structures 538, the first extending portions 56, the second extending portions 57 and the boss structures 225 of the bracket, filling glue can be filled in the assembly gaps 227, and the arrangement of the filling glue can improve the connection strength of the second dust screen assembly and the second shell on one hand and can also improve the air tightness of the second channel on the other hand.

Referring to fig. 17, fig. 17 is a partial cross-sectional view of a speaker according to another embodiment of the present application. In this embodiment, to ensure the sealing between the second end 242 of the sound outlet channel 24 and the front cavity 25, the second side 536 of the mounting portion 53 and the outer wall of the speaker body 30 may be sealed by glue 58.

When assembling the speaker, firstly, the speaker main body 30 is disposed on the supporting structure in the second housing 20, then the first dust-proof net 40 is fixed to the first end 241 of the sound-emitting channel 24, and the second dust-proof net assembly 50 is fixed to the second end 242 of the sound-emitting channel 24, then the glue is dispensed and sealed in the assembly gap 227 between the mounting portion 53 and the second housing 20, and the second side 536 of the mounting portion 53 and the speaker main body 30 are sealed by the glue 58, so that the sealing between the second end 242 of the sound-emitting channel 24 and the cavity 60 is realized, and finally, the first housing 10 is covered on the side of the speaker main body 30 departing from the second housing 20, and the first housing 10 and the second housing 20 are fixedly connected.

Referring to fig. 18, an embodiment of the present application further provides an electronic device, where the electronic device may be a common terminal in the prior art, such as a mobile phone, a tablet computer, a notebook computer, or a wearable device. The electronic device includes a housing 200 and the speaker 100 in the foregoing embodiments, the speaker 100 is disposed in the housing 200, and a sound outlet 210 is disposed on the housing 200 at a position corresponding to the sound outlet channel 24 of the speaker 100, so that the sound emitted by the speaker 100 can be transmitted to the outside of the electronic device through the sound outlet 210. The sound effect of the electronic equipment is better, and the production cost of the whole machine can be reduced.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A speaker comprising a first enclosure (10), a second enclosure (20), a speaker main body (30), and a first dust screen (40) and a second dust screen assembly (50), wherein:

the first shell (10) and the second shell (20) are connected to form a cavity (60) for accommodating the loudspeaker main body (30), a sound outlet channel (24) is formed in a side wall (22) of the second shell (20), a first end (241) of the sound outlet channel (24) is communicated with the outside of the loudspeaker (100), and a second end (242) of the sound outlet channel (24) is communicated with the cavity (60);

the loudspeaker main body (30) is arranged in the cavity (60);

the first dust screen (40) is arranged at the first end (241);

the second dust screen assembly (50) comprises a support (51) and a second dust screen (52), the support (51) is arranged on the sound outlet channel (24), the second dust screen (52) is arranged on the support (51), and the second dust screen (52) is located on one side, close to the cavity (60), of the first dust screen (40).

2. A loudspeaker according to claim 1, wherein the edge of the bottom wall (21) of the second housing (20) is provided with a support structure (23), the loudspeaker body (30) being provided on the support structure (23) and forming a front chamber (25) with the bottom wall (21), the second end (242) of the sound outlet channel (24) communicating with the front chamber (25).

3. A loudspeaker according to claim 1 or 2, wherein the bracket (51) comprises a mounting portion (53) for supporting the second dust screen (52), the mounting portion (53) being of frame-like construction, the second dust screen (52) being arranged on a first side (535) of the mounting portion (53) facing away from the cavity (60).

4. A loudspeaker according to claim 3, wherein the side wall (22) of the second housing (20) facing away from the bottom wall (21) is provided with an opening (221) at a position corresponding to the sound outlet channel (24);

the mounting portion (53) is disposed between the first end (241) and the second end (242) through the opening (221), and divides the sound emission channel (24) into a first channel (243) and a second channel (244), the first channel (243) being disposed near the first end (241).

5. The loudspeaker according to claim 4, characterized in that the opening (221) is arranged in correspondence with the second channel (24) and exposes the second channel (244);

the bracket (51) further comprises a blocking part (54) connected to the second side (536) of the mounting part (53), one end of the blocking part (54) away from the mounting part (53) extends to the second end (242) for closing the opening (221);

wherein the second side (536) is a side of the mounting portion (53) facing the cavity (60).

6. A loudspeaker according to claim 5, wherein the end of the blocking portion (54) remote from the mounting portion (53) is in sealed connection with an outer wall of the loudspeaker body (30).

7. A loudspeaker according to any one of claims 4 to 6, wherein the first enclosure (10) comprises a first metal plate (12), the first metal plate (12) being arranged on a side of the first enclosure (10) facing towards or away from the cavity (60); and/or the presence of a gas in the gas,

the second case (20) includes a second metal plate (27), and the second metal plate (27) is provided on a bottom wall (21) of the second case (20).

8. A loudspeaker according to claim 3, wherein the mounting portion (53) is provided at the second end (242), the second side (536) of the mounting portion (53) being sealingly connected to an outer wall of the loudspeaker body (30);

9. Loudspeaker according to claim 8, wherein the first housing (10) is made by an integral injection molding process; and/or the second shell (20) is manufactured and molded through an integral injection molding process.

10. A loudspeaker according to any one of claims 3 to 9, wherein the mounting portion (53) comprises a first rim (531), a second rim (532), a third rim (533) and a fourth rim (534) connected in series;

the bracket (51) further comprises a first bending structure (538), the first bending structure (538) is connected with the first frame (531) and located on the first side (535) of the mounting portion (53), and the part, exceeding the first frame (531), of the second dust screen (52) is fixed to the first bending structure (538); and/or the presence of a gas in the gas,

the bracket (51) further comprises a second bending structure (539), the second bending structure (539) is connected with the third frame (533) and located on the second side (536) of the mounting portion (53), and a portion, exceeding the third frame (533), of the second dust screen (52) is fixed to the second bending structure (539);

11. A loudspeaker according to claim 10, wherein a first recess (246) is provided in the sound outlet channel (24) and the second bending structure (539) fits in the first recess (246) when the mounting portion (53) is disposed between the first end (241) and the second end (242).

12. A loudspeaker according to claim 10, wherein the bottom wall (21) of the second housing (20) is provided with a second recess (211) when the mounting portion (53) is provided at the second end (242), the second bending structure (539) fitting within the second recess (211).

13. A loudspeaker according to claim 10, wherein a side wall (22) of the second housing (20) facing away from the bottom wall (10) has a first crimping region (222), the first crimping region (222) being adapted to be crimped in cooperation with the first folding structure (538).

14. The loudspeaker of claim 10, wherein the bracket (51) further comprises a first extension (56) and a second extension (57), the first extension (56) and the second extension (57) being connected to both ends of the first flexure structure (538) and extending toward the second end, respectively;

the side wall (22) of the second shell (20) is provided with a second crimping area (223) and a third crimping area (224), wherein the side wall faces away from the bottom wall (21), the second crimping area (223) is used for being matched and crimped with the first extension part (56), and the third crimping area (224) is used for being matched and crimped with the second extension part (57).

15. A loudspeaker according to claim 14, wherein a side of the side wall (22) of the second housing (20) facing away from the bottom wall (21) has a boss structure (225), the boss structure (225) being arranged around the first bend structure (538), the first extension (56) and the second extension (57).

16. The loudspeaker of claim 15, wherein a mounting gap (227) is provided between the boss structure (225) and the first bend structure (538), the first extension (56), and the second extension (57), respectively, and wherein a filling glue is provided in the mounting gap (227).

17. A loudspeaker according to any one of claims 1 to 16, wherein the mesh diameter of the first dust screen (40) is greater than the mesh diameter of the second dust screen (52).

18. An electronic device, comprising a housing (200) and the speaker (100) as claimed in any one of claims 1 to 17, wherein the speaker (100) is disposed in the housing (200), and a sound outlet (210) is formed on the housing (200) at a position corresponding to the sound outlet channel (24) of the speaker (100).