A loudspeaker and an electronic device

Abstract

The present application provides a loudspeaker and an electronic device, which can reduce the production cost and manufacturing process difficulty of the loudspeaker on the premise of effectively isolating various forms of dirt. The loudspeaker includes a first housing, a second housing, a loudspeaker main body, a first dust-proof net and a second dust-proof net assembly, wherein: the first housing and the second housing are connected to form a cavity for accommodating the loudspeaker main body, a sound outlet channel is formed on the side wall of the second housing, a first end of the sound outlet channel is communicated with the outside of the loudspeaker, and a second end of the sound outlet channel is communicated with the cavity; the loudspeaker main body is arranged in the cavity; the first dust-proof net is arranged at the first end; the second dust-proof net assembly includes a bracket and a second dust-proof net, the bracket is arranged on the sound outlet channel, the second dust-proof net is arranged on the bracket, and the second dust-proof net is located on the side close to the cavity of the first dust-proof net.

Description

Technical Field

[0001] This application relates to the technical field of electronic devices, and particularly to a loudspeaker and an electronic device. Background Art

[0002] A loudspeaker can be applied to an electronic device to support the electronic device in realizing an audio output function. Generally, in order to prevent external dust, impurities, etc. from entering the inside of the loudspeaker, a dust-proof structure is often provided at the sound outlet hole of the loudspeaker. At present, the dust-proof structure of the loudspeaker generally includes two forms: a single-layer dust-proof net and a double-layer dust-proof net. Among them, the structure of the single-layer dust-proof net is simple and easy to install, and it is mainly used to isolate and protect solid impurities. Therefore, the mesh diameter is small, and the small mesh is prone to adhesion of viscous liquid dirt on the dust-proof net, and in severe cases, it may even cause dirt blockage of the holes, affecting the sound effect of the loudspeaker; the double-layer dust-proof net can effectively isolate and protect both solid and liquid dirt by adopting a two-layer net structure with different mesh diameters, so the above-mentioned disadvantages of the single-layer dust-proof net can be avoided, but the manufacturing process difficulty and production cost of the double-layer dust-proof net are relatively high. Summary of the Invention

[0003] This application provides a loudspeaker and an electronic device to reduce the production cost and manufacturing process difficulty of the loudspeaker on the premise of effectively isolating various forms of dirt.

[0004] In a first aspect, this application provides a loudspeaker, which includes a first housing, a second housing, a loudspeaker main body, a first dust-proof net, and a second dust-proof net assembly. Among them, the first housing can be connected to the second housing to form a cavity for accommodating the loudspeaker main body; the second housing includes a side wall, and a sound outlet channel is opened on the side wall. The sound outlet channel can include a first end communicating with the outside of the loudspeaker and a second end communicating with the cavity; the first dust-proof net and the second dust-proof net assembly are arranged on the sound outlet channel. Specifically, in implementation, the first dust-proof net can be arranged at the first end of the sound outlet channel, and the second dust-proof net assembly can include a bracket and a second dust-proof net. The second dust-proof net is arranged on the bracket and is located on the side of the first dust-proof net close to the cavity.

[0005] In the above solution, the setting of the first dust-proof net and the second dust-proof net will neither increase the overall volume of the loudspeaker nor occupy the cavity space of the loudspeaker, so as to ensure the acoustic performance of the loudspeaker on the premise of effectively isolating various forms of dirt; in addition, the installation method of the first dust-proof net and the second dust-proof net assembly is relatively simple and convenient, and the first dust-proof net and the second dust-proof net can achieve material normalization, so this solution can also reduce the production cost and manufacturing process difficulty of the loudspeaker.

[0006] When the speaker main body is disposed in the cavity, a support structure may be provided at the edge of the bottom wall of the second housing. The speaker main body may be disposed on the support structure, and the diaphragm surface of the speaker main body is disposed facing the bottom wall of the second housing, so as to form a front cavity of the speaker between the speaker main body and the bottom wall of the second housing. The second end of the sound outlet channel may specifically communicate with the front cavity to transmit the sound emitted by the speaker to the outside.

[0007] Specifically, the bracket may include a mounting portion for supporting the second dust screen. The mounting portion may be a frame structure, and the second dust screen may be specifically disposed on the first side of the mounting portion facing away from the cavity. When fixing the second dust screen to the mounting portion, the second dust screen may be specifically adhered to the mounting portion by an adhesive.

[0008] In a specific embodiment, an opening may be formed at a position on the side wall of the second housing facing away from its bottom wall corresponding to the sound outlet channel. The mounting portion may be disposed on the sound outlet channel through the opening. Specifically, the mounting portion may be located between the first end and the second end and divide the sound outlet channel into a first channel and a second channel. Among them, the first channel is disposed close to the first end, and the second channel is disposed close to the second end. In this solution, by providing the opening, the installation difficulty of the second dust screen assembly can be reduced.

[0009] Specifically, the above opening may be disposed corresponding to the second channel and expose the second channel. The bracket may further include a blocking portion. The blocking portion may be specifically connected to the second side of the mounting portion facing the cavity, and one end of the blocking portion away from the mounting portion may extend to the second end of the sound outlet channel to close the opening, that is, to close the periphery of the second channel. In this way, on the one hand, the installation convenience of the second dust screen assembly can be improved, and on the other hand, the sealing performance of the second channel can also be improved.

[0010] In addition, when setting the blocking portion, the end of the blocking portion away from the mounting portion may also be hermetically connected to the outer wall of the speaker main body to ensure the sealing performance between the second end of the sound outlet channel and the front cavity.

[0011] In the above solution, the first housing may include a first metal plate, and the first metal plate may be specifically disposed on one side of the first housing facing or facing away from the cavity. Adopting this solution, by using the high strength advantage of the first metal plate, the overall thickness of the first housing can be relatively reduced, and then the cavity space can be increased when the overall volume of the speaker remains unchanged, which is beneficial to improving the sound effect of the speaker.

[0012] Of course, in some other embodiments, the second housing may also include a second metal plate, and the second metal plate may be specifically disposed on the bottom wall of the second housing to reduce the thickness of the bottom wall of the second housing.

[0013] In another specific embodiment, the mounting portion may be disposed at the second end of the sound outlet channel. At this time, the second side of the mounting portion may be hermetically connected to the outer wall of the speaker body to ensure the sealing between the second end of the sound outlet channel and the front cavity.

[0014] In the above solution, the first housing may be made of plastic material, and the first housing may be formed by an integral injection molding process to simplify the manufacturing process of the speaker. It can be understood that the second housing may also be made of plastic material, and the second housing may also be formed by an integral injection molding process.

[0015] When setting the mounting portion, the mounting portion may specifically include a first frame, a second frame, a third frame, and a fourth frame connected in sequence. Among them, the first frame and the third frame are opposite in position, and the second frame and the fourth frame are opposite in position; the bracket may further include a first bending structure, and the first bending structure may be connected to the first frame and located on the first side of the mounting portion. In this way, the portion of the second dust screen exceeding the first frame can be connected to the first bending structure, thereby increasing the bonding area between the second dust screen and the bracket.

[0016] Similarly, the bracket may further include a second bending structure, and the second bending structure may be connected to the third frame and located on the second side of the mounting portion, so that the portion of the second dust screen exceeding the third frame can be connected to the second bending structure, increasing the bonding area between the second dust screen and the bracket.

[0017] In a specific embodiment, when the mounting portion is disposed between the first end and the second end, a first groove may be provided in the sound outlet channel, and the second bending structure may be assembled in the first groove. On the one hand, this can avoid the second bending structure occupying the space in the sound outlet channel. On the other hand, the portion of the second dust screen adhered to the second bending structure can be pressed in the first groove, thereby improving the bonding stability between the second dust screen and the bracket.

[0018] In another specific embodiment, when the mounting portion is disposed at the second end of the sound outlet channel, a second groove may be provided on the bottom wall of the second housing, and the second bending structure may be assembled in the second groove to avoid the second bending structure occupying the front cavity space and also improving the bonding stability between the second dust screen and the bracket.

[0019] Specifically, the side wall of the second housing facing away from the bottom wall may have a first crimping area, and the first crimping area may be used to cooperate with the first bending structure for crimping. In this way, not only can the bonding between the second dust screen and the bracket be made more firm, but also the sealing between the bracket and the second housing can be improved.

[0020] In addition, the bracket may also include a first extension portion and a second extension portion, and the first extension portion and the second extension portion may be respectively connected to the two ends of the first bending structure, and the first extension portion and the second extension portion respectively extend toward the second end; the side wall of the second shell body facing away from the bottom wall may also have a second crimping area and a third crimping area, the second crimping area can be used for crimping with the first extension portion, and the third crimping area can be used for crimping with the second extension portion, in cooperation with the crimping effect of the aforementioned first crimping area and the first bending structure, on the side of the side wall facing away from the bottom wall, the area surrounding the peripheral side of the opening on the side wall is in complete contact with the bracket, so that the peripheral side of the second channel can be completely sealed.

[0021] In the above solution, the side wall of the second shell facing away from the bottom wall may also have a boss structure, and the boss structure may be arranged around the first bending structure, the first extension part and the second extension part. In some possible implementation schemes, a filling glue may be arranged in the assembly gap between the boss structure and the first bending structure, the first extension part and the second extension part to improve the connection strength between the second dustproof net assembly and the second shell, and also to improve the airtightness of the sound outlet channel.

[0022] In order to ensure the filling effect of the filling glue, the two corners of the first bending structure can be rounded structures respectively to reduce the risk of bubbles appearing during the dispensing process.

[0023] In some embodiments, the mounting portion may further include a connecting arm disposed between the second frame and the fourth frame, and both ends of the connecting arm may be respectively connected to the center positions of the first frame and the third frame. When the second dustproof net is disposed on the mounting portion, the second dustproof net may also be bonded to the connecting arm, thereby achieving support for the central area of ​​the second dustproof net, thereby improving the bonding stability between the second dustproof net and the mounting portion.

[0024] In some embodiments, the mesh diameter of the first dustproof net may be larger than the mesh diameter of the second dustproof net, so that liquid viscous dirt can enter the sound output channel through the first dustproof net to avoid accumulation and attachment on the first dustproof net, while the second dustproof net can block solid impurities passing through the first dustproof net to avoid solid impurities from entering the cavity. Therefore, through the joint action of the first dustproof net and the second dustproof net, dual protection against liquid dirt and solid impurities can be achieved without affecting the sound effect of the speaker.

[0025] In a second aspect, the present application further provides an electronic device, the electronic device comprising a housing and a speaker of any possible implementation scheme in the first aspect, the speaker being arranged in the housing, and a sound outlet hole being provided on the housing at a position corresponding to a sound outlet channel of the speaker, so that the sound emitted by the speaker can be transmitted to the outside of the electronic device through the sound outlet hole. The electronic device has a good sound effect, and the production cost of the whole device is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a partial cross-sectional view of a speaker in the prior art;

[0027] Figure 2 is a schematic structural diagram of another speaker in the prior art;

[0028] Figure 3 is an exploded view of a speaker provided by an embodiment of the present application;

[0029] Figure 4 is a side view of a speaker provided by an embodiment of the present application;

[0030] Figure 5 is Figure 4 a cross-sectional view of the shown speaker in the A-A direction;

[0031] Figure 6 is a schematic structural diagram of a second dust-proof net assembly provided by an embodiment of the present application;

[0032] Figure 7 is a schematic structural diagram of a second housing provided by an embodiment of the present application;

[0033] Figure 8 is a schematic assembly structural diagram of the second housing and the second dust-proof net assembly provided by an embodiment of the present application;

[0034] Figure 9 is a partial cross-sectional view of a speaker provided by an embodiment of the present application;

[0035] Figure 10 is a partial cross-sectional view of an electronic device provided by an embodiment of the present application;

[0036] Figure 11 is an exploded view of a speaker provided by another embodiment of the present application;

[0037] Figure 12 is a side view of a speaker provided by another embodiment of the present application;

[0038] Figure 13 is Figure 12 a cross-sectional view of the shown speaker in the B-B direction;

[0039] Figure 14 is a schematic structural diagram of a second dust-proof net assembly provided by another embodiment of the present application;

[0040] Figure 15 is a schematic structural diagram of a second housing provided by another embodiment of the present application;

[0041] Figure 16 is a schematic assembly structural diagram of the second housing and the second dust-proof net assembly provided by another embodiment of the present application;

[0042] Figure 17 Partial cross-sectional view of the speaker provided in another embodiment of the present application;

[0043] Figure 18 Partial structural cross-sectional view of the electronic device provided in another embodiment of the present application.

[0044] Reference numerals:

[0045] Prior art part:

[0046] 001 - First housing; 002 - Second housing; 011 - Speaker main body; 012 - Bracket; 013 - First dust screen;

[0047] 014 - Second dust screen; 015 - First sound outlet hole; 016 - Second sound outlet hole; 003 - Outer shell; 031 - Cavity;

[0048] 032 - Speaker main body; 033 - First dust screen; 034 - Second dust screen; 035 - Sound outlet hole;

[0049] Embodiment part of the present application:

[0050] 100 - Speaker; 10 - First housing; 20 - Second housing; 30 - Speaker main body; 40 - First dust screen;

[0051] 50 - Second dust screen assembly; 60 - Cavity; 21 - Bottom wall; 22 - Side wall; 23 - Support structure; 24 - Sound outlet channel;

[0052] 241 - First end; 242 - Second end; 243 - First channel; 244 - Second channel; 25 - Front cavity; 11 - First plastic main body;

[0053] 12 - First metal plate; 26 - Second plastic main body; 27 - Second metal plate; 41 - Sealing gasket; 51 - Bracket;

[0054] 52 - Second dust screen; 53 - Mounting part; 54 - Blocking part; 55 - Adhesive; 531 - First frame; 532 - Second frame;

[0055] 533 - Third frame; 534 - Fourth frame; 535 - First side; 536 - Second side; 537 - Connecting arm;

[0056] 538 - First bending structure; 539 - Second bending structure; 5351 - First positioning post; 56 - First extension part;

[0057] 57 - Second extension part; 245 - Support wall; 246 - First groove; 211 - Second groove; 221 - Opening;

[0058] 222 - The first crimping area; 223 - The second crimping area; 224 - The third crimping area; 225 - The boss structure;

[0059] 226 - The second positioning post; 5381 - The positioning hole; 227 - The assembly gap; 58 - Glue; 200 - The housing; 210 - The sound outlet hole. Specific embodiments

[0060] In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the accompanying drawings.

[0061] To facilitate the understanding of the loudspeaker provided in the embodiments of the present application, the application scenario thereof will be first described below. The loudspeaker provided in the embodiments of the present application can be applied to an electronic device to enable the electronic device to implement an audio output function. Among them, the electronic device can be a common terminal such as a mobile phone, a tablet computer, a notebook computer or a wearable device in the prior art. The loudspeaker generally includes a housing and a loudspeaker main body. The loudspeaker main body is arranged in the housing and can form a front cavity and a rear cavity with the housing. When the loudspeaker works, the diaphragm of the loudspeaker main body vibrates to push the air in the front cavity to disturb, and then resonates with the air in the front cavity to generate sound. The sound can be transmitted out through the sound outlet channel communicated with the front cavity on the housing, and finally the sound of the loudspeaker is realized. When the loudspeaker is installed in the electronic device, an opening is provided on the housing of the electronic device, and the opening is communicated with the sound outlet hole of the loudspeaker, so that the sound emitted by the loudspeaker can be further transmitted to the outside of the electronic device through the opening. Generally, in order to prevent external dust, impurities and other dirt from entering the loudspeaker through the opening, a dust-proof structure is generally provided near the sound outlet hole of the loudspeaker to block the dirt outside the loudspeaker and ensure that the internal components of the loudspeaker can work normally.

[0062] At present, the dust-proof structures of loudspeakers include two forms: a single-layer dust-proof net and a double-layer dust-proof net. Among them, the single-layer dust-proof net has the advantages of simple structure and easy installation, and is mainly used to realize the blocking effect on solid particulate matters. Therefore, its mesh diameter is generally small, and the small mesh diameter is likely to cause dirt such as liquid viscous substances to adhere to the dust-proof net, and even cause the phenomenon of dirt blocking the holes in severe cases, affecting the sound effect of the loudspeaker.

[0063] The double-layer dust-proof net can effectively block dirt in different forms by adopting a two-layer net structure with different mesh diameters, thereby avoiding the above-mentioned disadvantages of the single-layer dust-proof net. Refer to Figure 1 as shown in Figure 1It is a partial structural 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, a bracket 012, a first dust screen 013, and a second dust screen 014 disposed in the space formed by the connection of the first housing 001 and the second housing 002. Among them, a first sound outlet hole 015 communicating with the front cavity is provided on the side wall of the first housing 001, a second sound outlet hole 016 communicating with the first sound outlet hole is provided on the side wall of the second housing 002, the speaker main body 011 is fixed to the first housing 001 through the bracket 012, the first dust screen 013 is fixed between the side walls of the first housing 001 and the second housing 002, and the second dust screen 014 is fixed between the bracket 012 and the side wall of the first housing 001.

[0064] In Figure 1 In the shown speaker, the bracket 012 is provided inside the speaker. On the one hand, it occupies the front cavity space of the speaker, greatly reducing the sound effect of the speaker; on the other hand, adding the bracket 012 will make it impossible to normalize the incoming materials of the whole speaker, and the speaker has high requirements for the position accuracy of each component during the assembly process, resulting in difficulty in achieving automation during installation and increasing additional production costs.

[0065] Referring to Figure 2 as shown, Figure 2 It is a structural schematic 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 the cavity 031 of the housing 003. Among them, a sound outlet hole 035 communicating with the cavity 031 is provided on the housing 003, the speaker body 032 is located at one end of the cavity 031 far from the sound outlet hole 035, the first dust screen 033 is disposed at the sound outlet hole 035, the second dust screen 034 is disposed between the speaker main body 032 and the sound outlet hole 035, and in implementation, the second dust screen 034 is integrally formed with the housing 003 through a hot melt injection molding process.

[0066] In Figure 2 In the shown speaker, the hot melt injection molding technology for forming the second dust screen 034 has a relatively high process cost, resulting in a high manufacturing cost of the whole speaker. Therefore, it is not suitable for mid - to low - end electronic devices; in addition, the dust screen meeting the requirements of the hot melt injection molding technology needs to be made of high - temperature resistant materials, which will further increase the manufacturing cost of the whole speaker, and also cannot achieve the normalization of the incoming materials of the first dust screen 033 and the second dust screen 034.

[0067] Based on this, the embodiments of the present application provide a speaker adopting a double - layer dust screen structure, which can reduce the production cost and manufacturing process difficulty on the premise of effectively isolating various forms of dirt.

[0068] refer to Figure 3 As shown, Figure 3 An exploded diagram of a speaker provided in an embodiment of the present application. The speaker includes a first shell 10, a second shell 20, a speaker body 30, a first dustproof net 40 and a second dustproof net assembly 50, wherein the first shell 10 can be connected to the second shell 20 to form a cavity 60 for accommodating the speaker body 30, the second shell 20 can specifically include a bottom wall 21 and a side wall 22 arranged around the bottom wall, the edge of the bottom wall 21 is provided with a support structure 23 for carrying the speaker body 30, and the side wall 22 is provided with a sound outlet channel 24, the sound outlet channel 24 includes a first end 241 and a second end 242, when specifically set, the first end 241 can be connected to the outside of the speaker, and the second end 242 can be connected to the cavity 60, the first dustproof net 40 and the second dustproof net assembly 50 can be respectively arranged on the sound outlet channel 24 to double-isolate the inside of the speaker from the outside.

[0069] refer to Figure 4 and Figure 5 As shown, Figure 4 A side view of a loudspeaker provided in an embodiment of the present application, Figure 5 for Figure 4 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 shell 20, and the edge of the speaker body 30 may be supported on the aforementioned support structure 23, and there may be a certain height difference between the support structure 23 and the bottom wall 21, so that an air cavity is formed between the diaphragm surface of the speaker body 30 and the bottom wall 21, and the air cavity is the front cavity 25 of the speaker.

[0070] The specific material of the first shell 10 is not limited. For example, in one embodiment of the present application, the first shell 10 includes a first plastic body 11 and a first metal plate 12. The first metal plate 12 can be arranged on a side of the first plastic body 11 facing the cavity 60, or can also be arranged on a side of the first plastic body 11 facing away from the cavity 60, for example, Figure 5 In the illustrated embodiment, the first metal plate 12 is disposed on a side of the first plastic body 11 away from the cavity 60. The first metal plate 12 can be used to reinforce the first plastic body 11, so that the thickness of the first plastic body 11 can be designed to be relatively small, thereby making the overall thickness of the first shell 10 relatively small, and further increasing the space of the cavity 60 without changing the overall volume of the speaker, which is beneficial to improving the sound effect of the speaker.

[0071] There is no limit to the specific material of the second housing 20. Similarly, the second housing 20 may include a second plastic body 26 and a second metal plate 27. The second metal plate 27 is disposed on the bottom wall 21. Specifically, when disposed, the second metal plate 27 may be disposed on the side of the bottom wall 21 facing the cavity 60, or may also be disposed on the side of the bottom wall 21 facing away from the cavity 60. For example, in Figure 5 the illustrated embodiment, the second metal plate 27 is disposed on the side of the bottom wall 21 facing the cavity 60. The second metal plate 27 can be used to reinforce the bottom wall 21. Similarly, with this solution, the thickness of the bottom wall 21 can be designed to be relatively small, so that the space of the cavity 60 can be increased without changing the overall volume of the speaker, which is beneficial to improving the sound effect of the speaker; in addition, in order to improve the reinforcement effect of the second metal plate 27, the edge of the second metal plate 27 can also extend into the side wall 22 of the second housing 20.

[0072] In the embodiment of the present application, the first dust-proof net 40 can be specifically disposed at the first end 241 of the sound outlet channel 24 to perform the first layer of dust-proof isolation on the speaker. Specifically, when implemented, the edge of the first dust-proof net 40 can be adhesively fixed to the outer side wall of the second housing 20 through back glue, so as to improve the installation reliability of the first dust-proof net 40; in addition, on the side of the first dust-proof net 40 facing away from the second housing 20, an annular gasket 41 can be adhesively attached to the edge of the first dust-proof net 40. The gasket 41 can specifically be made of foam material. When the speaker is installed in the electronic device, the gasket 41 can be pressed against the outer side wall of the second housing 20 and the structure inside the electronic device, so as to seal between 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 side wall 22, there is a certain distance between the structure on the bracket 51 for supporting the second dust-proof net 52 and the second end 242 of the sound outlet channel 24. At this time, the bracket 51 is disposed in the sound outlet channel 24 and can divide the sound outlet channel 24 into two parts, which are the first channel 243 close to the first end 241 and the second channel 244 close to the second end 242 respectively. The second dust-proof net 52 can dust-proof isolate the first channel 243 and the second channel 244.

[0073] Among them, 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 dirty substances such as viscous liquids can enter the first channel through the first dust-proof net 40, thereby avoiding the attachment of dirt on the first dust-proof net 40; the mesh diameter of the second dust-proof net 52 is relatively small, so that solid impurities entering the first channel 243 can be blocked to prevent solid impurities from entering the cavity 60. Through the combined action of the first dust-proof net 40 and the second dust-proof net 52, dual protection against liquid dirt and solid impurities can be achieved without affecting the sound effect of the speaker.

[0074] When specifically setting, the mesh diameter of the first dust-proof net 40 may not be less than 120um. For example, the specific design value can be 120um, 125um, 130um, etc.; the mesh diameter of the second dust-proof net 52 may not be greater than 30um. For example, the specific design value can be 30um, 25um, 20um, etc.

[0075] It should be noted that the liquid dirt passing through the first dust-proof net 40 is generally stored in the first channel 243. In order to avoid clogging of the first channel 243, the length of the first channel 243 can be increased as much as possible during design. That is to say, the distance between the first dust-proof net 40 and the second dust-proof net 52 can be relatively large. Therefore, when setting the second dust-proof net assembly 50, without interfering with the second metal plate 27, the second dust-proof net assembly 50 can be set as close to the cavity 60 as possible. 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 can be not less than 1mm, and the specific design value can be 1mm, 1.1mm, 1.2mm, etc.

[0076] Please refer to Figure 6 as shown Figure 6Schematic diagram of the structure of the second dust-proof net assembly provided by an embodiment of the present application. In the embodiment of the present application, the bracket 51 can be generally in an L-shaped structure, including a mounting portion 53 and a blocking portion 54 connected to the mounting portion 53. The mounting portion 53 can specifically be a frame-shaped structure, including a first side frame 531, a second side frame 532, a third side frame 533, and a fourth side frame 534 connected in sequence. Among them, the first side frame 531 and the third side frame 533 are opposite in position, and the second side frame 532 and the fourth side frame 534 are opposite in position; the blocking portion 54 can specifically be connected to the first side frame 531, and when set, the blocking portion 54 is located on one side of the mounting portion 53, and the other side of the mounting portion 53 can be used to fix the second dust-proof net 52. For the convenience of description, hereinafter, the side of the mounting portion 53 where the second dust-proof net 52 is fixed will be called the first side 535, and the side connected to the blocking portion 54 will be called the second side 536. When fixedly connecting the second dust-proof net 52 to the mounting portion 53, the second dust-proof net assembly 50 can further include an adhesive 55, so that the second dust-proof net 52 can be adhered to the frame of the mounting portion 53 through the adhesive 55.

[0077] In order to improve the connection strength between the second dust-proof net 52 and the mounting portion 53, the mounting portion 53 can further include a connecting arm 537 located between the second side frame 532 and the fourth side frame 534. Specifically, when set, both ends of the connecting arm 537 can be respectively connected to the central positions of the first side frame 531 and the third side frame 533. In this way, when the second dust-proof net 52 is arranged on the mounting portion 53, the second dust-proof net 52 can also be adhered to the connecting arm 537, so as to realize the support of the central area of the second dust-proof net 52, and further improve the bonding stability between the second dust-proof net 52 and the mounting portion 53.

[0078] Please continue to refer to Figure 6 As shown, a first bending structure 538 connected to the first side frame 531 can be provided on the mounting portion 53, and the first bending structure 538 can specifically be located on the first side 535 of the mounting portion 53. When adopting this design, the size of the second dust-proof net 52 can be correspondingly increased, so that the part of the second dust-proof net 52 extending beyond the first side frame 531 of the mounting portion 53 can be adhered to the first bending structure 538. That is to say, the bonding area between the second dust-proof net 52 and the mounting portion 53 can extend from the frame of the mounting portion 53 to the first bending structure 538, thereby increasing the bonding area between the second dust-proof net 52 and the bracket 51 and improving the bonding stability between the two.

[0079] Similarly, a second bending structure 539 connected to the third side frame 533 can also be provided on the mounting portion 53, and the second bending structure 539 can specifically be located on the second side 536 of the mounting portion 53. In this way, the part of the second dust-proof net 52 extending beyond the third side frame 533 of the mounting portion 53 can be adhered to the second bending structure 539 to increase the bonding area between the second dust-proof net 52 and the bracket 51 and improve the bonding stability between the two.

[0080] To ensure the installation position of the second dust-proof net on the installation part 53, the first side 535 of the installation part 53 further has a first positioning post 5351. Specifically, in implementation, the first positioning post 5351 can be arranged on the first frame 531, and through holes can be formed at corresponding positions of the second dust-proof net 52. When the second dust-proof net 52 is arranged on the installation part 53, the second dust-proof net 52 is positioned through the mating insertion of the first positioning post 5351 and the through holes. The number of the first positioning posts 5351 is not limited. For example, in Figure 6 the illustrated embodiment, there are two first positioning posts 5351, and the two first positioning posts 5351 can be respectively arranged at both ends of the first frame 531 to further ensure the installation accuracy of the second dust-proof net 52.

[0081] In addition, the bracket 51 further includes a first extension part 56 and a second extension part 57. The first extension part 56 and the second extension part 57 are respectively connected to both ends of the first bending structure 538, and the first extension part 56 and the second extension part 57 extend in the same direction as the blocking part 54. With this design, the first extension part 56 and the second extension part 57 respectively extend beyond the second frame 532 and the fourth frame 534. When the second dust-proof net assembly 52 is installed on the second housing, the first extension part 56 and the second extension part 57 can be respectively hermetically connected to the second housing to seal the sound outlet channel.

[0082] In the embodiment of the present application, the material of the bracket 51 is not limited. For example, in a specific implementation, the bracket 51 can be made of plastic material, so as to realize the normalization of the incoming materials of the bracket 51 and the plastic main bodies of the first housing and the second housing, which is beneficial to reducing the production cost of the speaker. It can be understood that when the bracket is made of plastic material, the bracket 51 can be formed by an integral injection molding process, thereby simplifying the manufacturing process.

[0083] Please refer to Figure 7 as shown in Figure 7 which is a schematic structural diagram of the second housing provided by an embodiment of the present application. When forming the sound outlet channel 24 on the second housing 20, as described above, the sound outlet channel 24 can include a first channel 243 and a second channel 244. Among them, the first channel 243 can specifically be a hole-shaped channel, and the cross-sectional shape of the first channel 243 is not limited. For example, it can be circular, oval, rectangular, trapezoidal, etc. It can be understood that to improve the structural strength of the second housing 20, a support wall 245 arranged along the extension direction of the first channel 243 can also be provided in the first channel 243, and the support wall 245 can specifically support in the central area of the first channel 243 to ensure the support effect.

[0084] When setting the second channel 244, in order to facilitate the installation of the second dust-proof net assembly 50, an opening 221 is formed on the side wall 22 of the second housing 20 facing away from its bottom wall 21. The opening 221 is arranged corresponding to the area of the second channel 244, thereby exposing the second channel 244. A first groove 246 is provided in the second channel 244 and is adapted to the second bending structure 539. When the second dust-proof net assembly 50 is installed on the second housing 20, the first side 535 of the mounting portion 53 faces the first channel 243, and the second side 536 faces the cavity 60. In this way, the blocking portion 54 can close the opening 221, that is, close the periphery of the second channel 244; and by assembling the second bending structure 539 into the first groove 246, on the one hand, it can prevent the second bending structure 539 from occupying the space in the second channel 244, which is beneficial to improving the sound effect of the speaker, and on the other hand, it can also press the part of the second dust-proof net 52 adhered to the second bending structure 539 into the first groove 246, thereby improving the adhesion stability between the second dust-proof net 52 and the bracket 51.

[0085] In addition, a first crimping area 222 adapted to the foregoing first bending structure 538 is provided on the side wall 22 facing away from the bottom wall 21. The first bending structure 538 can abut against the first crimping area 222, and the part of the second dust-proof net 52 adhered to the first bending structure 538 is crimped in the first crimping area 222. In this way, not only can the adhesion between the second dust-proof net 52 and the bracket 51 be made firmer, but also the sealing performance between the bracket 51 and the second housing 20 can be improved.

[0086] Similarly, a second crimping area 223 adapted to the first extension portion 56 and a third crimping area 224 adapted to the second extension portion 57 can also be provided on the side wall 22 facing away from the bottom wall 21. When the second dust-proof net assembly 50 is installed on the second housing 20, the first extension portion 56 can abut against the second crimping area 223, and the second extension portion 57 can abut against the third crimping area 224. In this way, in cooperation with the abutting action of the foregoing first bending structure 538 and the first crimping area 222, in the area on the side wall 22 facing away from the bottom wall 21, the area on the side wall 22 surrounding the periphery of the opening 221 is in full contact with the bracket 51, thereby completely sealing the periphery of the second channel 244.

[0087] In addition, a boss structure 225 may also be provided on the side wall 22 facing away from the bottom wall 21. The boss structure 225 can surround the first crimping area 222, the second crimping area 223 and the third crimping area 224. When the second dust-proof net assembly 50 is installed on the second housing 20, the boss structure 225 can block the outside of the first bending structure 538, the first extension portion 56 and the second extension portion 57, improving the sealing performance.

[0088] To ensure the installation position of the second dust-proof net assembly 50 on the second housing 20, a second positioning post 226 is further provided on the first crimping area 223, and a positioning hole 5381 is correspondingly formed on the first bending structure 538. The second dust-proof net assembly 50 can be positioned by the mating insertion of the second positioning post 226 and the positioning hole 5381.

[0089] It can be understood that in other embodiments of the present application, the second positioning post 226 can also be provided on the second crimping area 223 or the third crimping area 224; or, in order to improve the positioning accuracy, the number of the second positioning posts 226 can be multiple, and the multiple second positioning posts 226 can be respectively provided in any two areas of the first crimping area 222, the second crimping area 223 and the third crimping area 224; or, the multiple second positioning posts 226 can also be respectively provided in the first crimping area 222, the second crimping area 223 and the third crimping area 224. The present application does not limit this, and only needs to form positioning holes 5381 corresponding to the multiple second positioning posts 226 on the first bending structure 538.

[0090] Please refer to Figure 8 as shown in Figure 8 is a schematic assembly structure diagram of the second housing and the second dust-proof net assembly provided by an embodiment of the present application. After the second dust-proof net assembly 50 is installed on the second housing 20, there will be a certain assembly gap 227 between the first bending structure 538, the first extension 56 and the second extension 57 of the bracket and the boss structure 225. The assembly gap 227 can be filled with a filling adhesive. The setting of the filling adhesive can, on the one hand, improve the connection strength between the second dust-proof net assembly 50 and the second housing 20, and on the other hand, improve the airtightness of the second channel 244. The filling adhesive can be specifically formed by a dispensing process, and, in order to ensure the filling effect of the glue, in the embodiment of the present application, the two corners of the first bending structure 538 can be respectively designed as rounded corner structures to reduce the risk of air bubbles appearing during the dispensing process.

[0091] Refer to Figure 9 as shown in Figure 9 is a partial cross-sectional view of a speaker provided by an embodiment of the present application. In this embodiment, in order to ensure the sealing 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 body 30 can be sealed by glue 58.

[0092] When assembling the speaker, first place the speaker main body 30 on the support structure 23 inside the second housing 20. Then, fix the first dust screen 40 to the first end 241 of the sound outlet channel 24, and place the second dust screen assembly 50 inside the sound outlet channel 24. Use the blocking portion 54 of the second dust screen assembly to seal the periphery of the second channel 244. Then, apply glue for sealing in the assembly gap 227 between the mounting portion 53 and the second housing 20, and bond and seal the end of the blocking portion 54 away from the mounting portion 53 to the speaker main body 30 with glue 58, so as to achieve the seal between the second end 242 of the sound outlet channel 24 and the cavity 60. Finally, cover the first housing 10 on the side of the speaker main body 30 facing away from the second housing 20, and fixedly connect the first housing 10 and the second housing 20.

[0093] In summary, for the speaker provided in the embodiment of the present application, by arranging the first dust screen at the end of the sound outlet channel and the second dust screen assembly inside the sound outlet channel, effective isolation and protection against various forms of dirt can be achieved. Moreover, the settings of the first dust screen and the second dust screen will neither increase the overall volume of the speaker nor occupy the front cavity space of the speaker, thus ensuring the acoustic performance of the speaker. In addition, the installation methods of the first dust screen and the second dust screen assembly are relatively simple and convenient, and both the first dust screen and the second dust screen can use conventional dust screen materials, enabling material normalization. Therefore, this solution can also reduce the production cost and manufacturing process difficulty of the speaker.

[0094] Reference Figure 10 As shown, the embodiment of the present application also provides an electronic device, which can be a common terminal such as a mobile phone, a tablet computer, a laptop computer or a wearable device in the prior art. The electronic device includes a housing 200 and the speaker 100 in any of the above embodiments. The speaker 100 is arranged inside the housing 200, and a sound outlet hole 210 is provided at the position of the housing 200 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 hole 210. The electronic device has good sound effects and the production cost of the whole machine is reduced.

[0095] The present application also provides a speaker. Reference Figure 11 As shown, Figure 11The figure is an exploded diagram of the speaker. The speaker includes a first shell 10, a second shell 20, a speaker body 30, a first dustproof net 40 and a second dustproof net assembly 50, wherein the first shell 10 can be connected to the second shell 20 to form a cavity 60 for accommodating the speaker body 30, and the second shell 20 can specifically include a bottom wall 21 and a side wall 22 arranged around the bottom wall 21, and the edge of the bottom wall 21 is provided with a support structure 23 for carrying the speaker body 30, and the side wall 22 is provided with a sound outlet channel 24, and the sound outlet channel 24 includes a first end 241 and a second end 241. When specifically set, the first end 241 can be connected to the outside of the speaker, and the second end 242 can be connected to the cavity 60, and the first dustproof net 40 and the second dustproof net assembly 50 can be respectively arranged on the sound outlet channel 24 to perform double dustproof isolation between the inside and the outside of the speaker.

[0096] refer to Figure 12 and Figure 13 As shown, Figure 12 A side view of a speaker provided in another embodiment of the present application, Figure 13 for Figure 12 The cross-sectional view of the speaker in the BB direction is shown. When the speaker body 30 is arranged in the cavity 60, the diaphragm surface of the speaker body 30 can be arranged toward the bottom wall 21 of the second shell 20, and the edge of the speaker body 30 can be supported on the aforementioned support structure 23, and there can be a certain height difference between the support structure 23 and the bottom wall 21, so that an air cavity is formed between the diaphragm surface of the speaker body 30 and the bottom wall 21, and the air cavity is the front cavity 25 of the speaker.

[0097] In the embodiment of the present application, the first shell 10 can be made of plastic material as a whole. In specific implementation, the first shell 10 can be made by an integrated injection molding process; the second shell 20 can be made of plastic material as a whole. Similarly, the second shell 20 can also be made by an integrated injection molding process.

[0098] In the embodiment of the present application, the first dustproof net 40 can be arranged at the first end 241 of the sound outlet channel 24, for performing a first layer of dust-proof isolation for the speaker. The specific structure and installation method of the first dustproof net 40 can be similar to those in the aforementioned embodiment and will not be elaborated herein; the second dustproof net assembly 50 may include a bracket 51 and a second dustproof net 52. In a specific implementation, the second dustproof net assembly 50 can be arranged at the second end 242 of the sound outlet channel 24, for performing a second layer of dust-proof isolation for the speaker.

[0099] The design of the mesh diameters of the first dustproof net 40 and the second dustproof net 52 may refer to the aforementioned embodiments and will not be described in detail herein.

[0100] In addition, in the above embodiments, since the distance between the first dust-proof net 40 and the second dust-proof net 52 (i.e., the length of the sound output channel) is relatively large, the ability of the speaker to isolate and protect against liquid dirt is also relatively strong.

[0101] Refer to Figure 14 as shown, Figure 14 which is a schematic structural diagram of a second dust-proof net assembly provided by another embodiment of the present application. The bracket 51 may include a mounting portion 53 having a frame structure. The mounting portion 53 includes a first side frame 531, a second side frame 532, a third side frame 533, and a fourth side frame 534 that are sequentially connected. Among them, the first side frame 531 and the third side frame 533 are opposite in position, and the second side frame 532 and the fourth side frame 534 are opposite in position; the second dust-proof net 52 is disposed on one side of the mounting portion 53. When the second dust-proof net 52 is fixedly connected to the mounting portion 53, the second dust-proof net assembly 50 may further include an adhesive 55 so that the second dust-proof net 52 can be adhered to the side frame of the mounting portion 53 through the adhesive 55. For the convenience of description, hereinafter, the side of the mounting portion 53 where the second dust-proof net 52 is disposed is referred to as the first side 535, and the side of the mounting portion 53 opposite to the first side 535 is referred to as the second side 536.

[0102] Similar to the foregoing embodiments, in order to improve the connection strength between the second dust-proof net 52 and the mounting portion 53, the mounting portion 53 may further include a connecting arm 537. Specifically, when arranged, 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. In this way, when the second dust-proof net 52 is disposed on the mounting portion 53, the second dust-proof net 52 may also be adhered to the connecting arm 537, thereby realizing the support of the central area of the second dust-proof net 52, and further improving the bonding stability between the second dust-proof net 52 and the mounting portion 53.

[0103] 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 side frame 531, and the second bending structure 539 is connected to the third side frame 533. And when arranged, 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. By providing the first bending structure 538 and the second bending structure 539, the size of the second dust-proof net 52 can be correspondingly increased, so that the part of the second dust-proof net 52 that extends beyond the first side frame 531 can be adhered to the first bending structure 538, and the part that extends beyond the third side frame 533 of the mounting portion 53 can be adhered to the second bending structure 539, thereby increasing the bonding area between the second dust-proof net 52 and the bracket 51 and improving the bonding stability between the two.

[0104] Please continue to refer to Figure 14As shown, the bracket 51 further includes a first extension portion 56 and a second extension portion 57 respectively connected to two ends of the first bending structure 538. The first extension portion 56 and the second extension portion 57 respectively extend beyond the second side frame 532 and the fourth side frame 534. When the second dust-proof net assembly 50 is installed on the second housing, the first extension portion 56 and the second extension portion 57 can be respectively and sealingly connected to the second housing, improving the sealing performance of the sound outlet channel.

[0105] In the embodiment of the present application, the material of the bracket 51 is not limited. For example, in a specific implementation, the bracket 51 can be made of steel. Since the strength of steel is relatively high, the thickness of the bracket 51 can be designed to be relatively thin, which is beneficial to reducing the occupied space of the second dust-proof net assembly 50 in the speaker. It can be understood that when the bracket 51 is made of steel, the bracket 51 can be formed by an integral bending process, thereby simplifying the manufacturing process.

[0106] Please refer to Figure 15 as shown Figure 15 is a schematic structural diagram of the second housing provided by another embodiment of the present application. When the sound outlet channel 24 is formed in the second housing, the sound outlet channel 24 can specifically be a hole-shaped structure, and the cross-sectional shape of the sound outlet channel 24 can be circular, elliptical, rectangular, trapezoidal, etc. It can be understood that in order to improve the structural strength of the second housing 20, a support arm 245 can also be provided in the sound outlet channel along its extending direction. The support arm 245 can specifically support in the central area of the sound outlet channel 24 to ensure the support effect.

[0107] A second groove 211 matching the second bending structure 539 is formed in the bottom wall 21 of the second housing 20. When the second dust-proof net assembly 50 is installed on the second housing 20, the first side 535 of the mounting portion 53 faces the sound outlet channel 24, and the second side 536 faces the cavity 60. The second bending structure 539 can be assembled in the second groove 211. On the one hand, this can avoid the second bending structure 539 occupying the front cavity space, which is beneficial to improving the sound effect of the speaker. On the other hand, a part of the second dust-proof net 52 adhered to the second bending structure 539 can be pressed in the second groove 211, thereby improving the adhesion stability between the second dust-proof net 52 and the bracket 51.

[0108] Please continue to refer to Figure 15 as shown, a first crimping area 222, a second crimping area 223 and a third crimping area 224 can be provided on a surface of the side wall 22 facing away from the bottom wall 21. Similar to the foregoing embodiment, when the second dust-proof net assembly 50 is installed on the second housing 20, the first bending structure 538, the first extension portion 56 and the second extension portion 57 of the bracket 21 can be respectively crimped in cooperation with the above three crimping areas to improve the adhesion firmness between the second dust-proof net 52 and the bracket 51 and the sealing performance between the bracket 51 and the second end 242 of the sound outlet channel 24.

[0109] In addition, a boss structure 225 may be provided on the side wall 22 facing away from the bottom wall 21. The boss structure 225 may be disposed around the first crimping area 222, the second crimping area 223, and the third crimping area 224. When the second dust-proof net assembly 50 is installed on the second housing 20, the boss structure 225 may be blocked outside the first bending structure 538, the first extension 56, and the second extension 57 to improve the sealing performance.

[0110] In order to ensure the installation position of the second dust-proof net assembly 50 on the second housing 20, a positioning post 226 is further provided on the first crimping area 223, and a positioning hole 5381 is correspondingly formed on the first bending structure 538. The second dust-proof net assembly 50 can be positioned by the fitting and insertion of the positioning post 226 and the positioning hole 5381.

[0111] Reference Figure 16 as shown in Figure 16 is a schematic assembly structure diagram of the second housing and the second dust-proof net assembly provided by another embodiment of the present application. There is a certain assembly gap 227 between the first bending structure 538, the first extension 56, and the second extension 57 of the bracket and the boss structure 225. The assembly gap 227 can be filled with a filling adhesive. The setting of the filling adhesive can, on the one hand, improve the connection strength between the second dust-proof net assembly and the second housing, and on the other hand, improve the airtightness of the second channel.

[0112] Reference Figure 17 as shown in Figure 17 is a partial cross-sectional view of a speaker provided by another embodiment of the present application. In this embodiment, in order 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 main body 30 can be sealed by glue 58.

[0113] When assembling the speaker, first, the speaker main body 30 is disposed on the support structure inside the second housing 20, then the first dust-proof net 40 is fixed to the first end 241 of the sound outlet channel 24, and the second dust-proof net assembly 50 is fixed to the second end 242 of the sound outlet channel 24. Then, glue is applied for sealing 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 glue 58, so as to realize the sealing between the second end 242 of the sound outlet channel 24 and the cavity 60. Finally, the first housing 10 is covered on the side of the speaker main body 30 facing away from the second housing 20, and the first housing 10 and the second housing 20 are fixedly connected.

[0114] Reference Figure 18As shown in the figure, the embodiment of the present application further provides an electronic device, which can be a common terminal such as a mobile phone, a tablet computer, a laptop computer or a wearable device in the prior art. The electronic device includes a housing 200 and the speaker 100 in the foregoing embodiment. The speaker 100 is disposed in the housing 200, and a sound outlet hole 210 is provided at a position corresponding to the sound outlet channel 24 of the speaker 100 on the housing 200, so that the sound emitted by the speaker 100 can be transmitted to the outside of the electronic device through the sound outlet hole 210. The electronic device has better sound effects and the production cost of the whole machine is reduced.

[0115] The above is only the specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present application can easily think of changes or substitutions, which should be covered within the protection 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 loudspeaker, It is characterized in that It comprises a first housing (10), a second housing (20), a speaker body (30), a first dustproof net (40) and a second dustproof net assembly (50), wherein: The first shell (10) and the second shell (20) are connected to form a cavity (60) for accommodating the speaker body (30); a sound outlet channel (24) is provided on the side wall (22) of the second shell (20); a first end (241) of the sound outlet channel (24) is in communication with the outside of the speaker (100); and a second end (242) of the sound outlet channel (24) is in communication with the cavity (60); The loudspeaker body (30) is arranged in the cavity (60); The first dustproof net (40) is arranged at the first end (241), and the first dustproof net (40) is fixed to the outer side wall of the second shell (20); The second dustproof net assembly (50) comprises a bracket (51) and a second dustproof net (52), wherein the bracket (51) is arranged on the sound outlet channel (24), the second dustproof net (52) is arranged on the bracket (51), and the second dustproof net (52) is located on a side of the first dustproof net (40) close to the cavity (60); The bracket (51) comprises a mounting portion (53) for supporting the second dustproof net (52); the mounting portion (53) is a frame-shaped structure; the second dustproof net (52) is arranged on a first side (535) of the mounting portion (53) away from the cavity (60); An opening (221) is provided on a side of the side wall (22) of the second shell (20) facing away from the bottom wall (21) at a position corresponding to the sound outlet channel (24); the mounting portion (53) is arranged between the first end (241) and the second end (242) through the opening (221), and divides the sound outlet channel (24) into a first channel (243) and a second channel (244), and the first channel (243) is arranged close to the first end (241); The opening (221) is arranged corresponding to the second channel (244) and exposes the second channel (244); the bracket (51) further comprises a blocking portion (54) connected to a second side (536) of the mounting portion (53), and the blocking portion (54) extends from one end of the mounting portion (53) 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).

2. The loudspeaker according to claim 1, It is characterized in that A supporting structure (23) is provided at the edge of the bottom wall (21) of the second shell (20); the speaker body (30) is arranged on the supporting structure (23) and forms a front cavity (25) with the bottom wall (21); and the second end (242) of the sound outlet channel (24) is in communication with the front cavity (25).

3. The loudspeaker according to claim 1, It is characterized in that An end of the blocking portion (54) away from the mounting portion (53) is sealedly connected to the outer wall of the speaker body (30).

4. The loudspeaker according to claim 3, It is characterized in that The first shell (10) comprises a first metal plate (12), the first metal plate (12) being arranged on a side of the first shell (10) facing towards or away from the cavity (60); and / or, The second shell (20) comprises a second metal plate (27), and the second metal plate (27) is arranged on the bottom wall (21) of the second shell (20).

5. The loudspeaker according to claim 4, It is characterized in that The mounting portion (53) is arranged at the second end (242), and the second side (536) of the mounting portion (53) is sealingly connected to the outer wall of the speaker body (30); Wherein, the second side (536) is a side of the mounting portion (53) facing the cavity (60).

6. The loudspeaker according to claim 5, It is characterized in that The first shell (10) is manufactured and formed by an integral injection molding process; and / or the second shell (20) is manufactured and formed by an integral injection molding process.

7. The loudspeaker according to claim 3, It is characterized in that The mounting portion (53) comprises a first frame (531), a second frame (532), a third frame (533) and a fourth frame (534) which are connected in sequence; The bracket (51) further comprises a first bending structure (538), the first bending structure (538) being connected to the first frame (531) and being located on a first side (535) of the mounting portion (53), and a portion of the second dustproof net (52) that exceeds the first frame (531) being fixed to the first bending structure (538); and / or, The bracket (51) further comprises a second bending structure (539), the second bending structure (539) being connected to the third frame (533) and being located on the second side (536) of the mounting portion (53), and a portion of the second dustproof net (52) that exceeds the third frame (533) being fixed to the second bending structure (539); Wherein, the second side (536) is a side of the mounting portion (53) facing the cavity (60).

8. The loudspeaker according to claim 7, It is characterized in that When the mounting portion (53) is arranged between the first end (241) and the second end (242), a first groove (246) is arranged in the sound outlet channel (24), and the second bending structure (539) is assembled in the first groove (246).

9. The loudspeaker according to claim 7, It is characterized in that When the mounting portion (53) is arranged at the second end (242), the bottom wall (21) of the second shell (20) is provided with a second groove (211), and the second bending structure (539) is assembled in the second groove (211).

10. The loudspeaker according to claim 7, It is characterized in that One side of the side wall (22) of the second housing (20) facing away from the bottom wall (21) has a first crimping area (222), and the first crimping area (222) is used for cooperating with the first bending structure (538) for crimping.

11. The loudspeaker according to claim 7, characterized in that the bracket (51) further includes a first extension portion (56) and a second extension portion (57), the first extension portion (56) and the second extension portion (57) are respectively connected to two ends of the first bending structure (538), and extend towards the second end; One side of the side wall (22) of the second housing (20) facing away from the bottom wall (21) has a second crimping area (223) and a third crimping area (224), the second crimping area (223) is used for cooperating with the first extension portion (56) for crimping, and the third crimping area (224) is used for cooperating with the second extension portion (57) for crimping.

12. The loudspeaker according to claim 11, characterized in that One side of the side wall (22) of the second housing (20) facing away from the bottom wall (21) has a boss structure (225), and the boss structure (225) is arranged around the first bending structure (538), the first extension portion (56) and the second extension portion (57).

13. The loudspeaker according to claim 12, characterized in that There are assembly gaps (227) between the boss structure (225) and the first bending structure (538), the first extension portion (56) and the second extension portion (57) respectively, and filling glue is arranged in the assembly gaps (227).

14. The loudspeaker according to any one of claims 1 to 13, characterized in that The mesh diameter of the first dustproof net (40) is larger than the mesh diameter of the second dustproof net (52).

15. An electronic device, characterized in that it includes a housing (200) and the loudspeaker (100) according to any one of claims 1 to 14, the loudspeaker (100) is arranged in the housing (200), and a sound outlet hole (210) is opened at a position corresponding to the sound outlet channel (24) of the loudspeaker (100) on the housing (200).

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