Loudspeaker assembly and electronic equipment

Abstract

The invention provides a loudspeaker assembly and electronic equipment, relates to the technical field of electronic equipment, and aims to solve the problems of poor sound production performance, unreasonable assembly structure and the like of the loudspeaker assembly. The loudspeaker assembly provided by the invention comprises a vibrating diaphragm, a bracket and a shell, the vibrating diaphragm comprises a vibrating area and a first fixing area, the first fixing area extends from at least part of the edge of the vibrating area, the vibrating area is located in a first plane, an included angle is formed between the extending direction of the first fixing area and the first plane, the support is provided with a mounting surface, and the first fixing area is welded to the mounting surface; the vibrating diaphragm or the support is provided with a first bearing face, the shell is provided with a second bearing face, the first bearing face is fixedly connected with the second bearing face, and the included angle between the first bearing face or the second bearing face and the first plane is smaller than 90 degrees. According to the loudspeaker assembly provided by the invention, the effective vibrating diaphragm area of the vibrating diaphragm can be effectively increased, and in addition, the mounting precision of the vibrating diaphragm or the bracket and the shell on the direction perpendicular to the first plane can be ensured.

Description

Technical Field

[0001] The present application relates to the technical field of electronic equipment, and in particular to a speaker assembly and an electronic equipment. Background Art

[0002] The speaker assembly is the main device for realizing the audio playback function in electronic devices. In the speaker assembly, the sound is mainly emitted by the vibration of the diaphragm. The structure and assembly method of the speaker assembly have a significant impact on the sound performance of the speaker assembly. As the industry continues to improve the playback sound quality of the speaker assembly, the structure of the speaker assembly also needs to be effectively improved. For example, more and more electronic devices are developing in the direction of being lighter, thinner and smaller, and the functions and components of electronic devices are also increasing. Therefore, the space used to place the speaker assembly is getting smaller and smaller. Among them, the vibration area of ​​the diaphragm in the speaker assembly affects the sound performance of the speaker assembly. Therefore, how to maximize the vibration area in a limited space has become a technical problem that needs to be solved urgently. Summary of the invention

[0003] The present application provides a speaker assembly and an electronic device with good sound performance and easy assembly.

[0004] In a first aspect, the present application provides a speaker assembly, including a diaphragm, a bracket and a housing. The diaphragm includes a vibration area and a first fixed area, and the first fixed area extends from at least a portion of the edge of the vibration area. Wherein, the vibration area is located in a first plane, and the extension direction of the first fixed area is at an angle to the first plane. The bracket has a mounting surface, and the first fixed area is welded to the mounting surface. The diaphragm or the bracket has a first supporting surface, and the housing has a second supporting surface, the first supporting surface is fixedly connected to the second supporting surface, and the angle between the first supporting surface or the second supporting surface and the first plane is less than 90°.

[0005] In the example provided in the present application, the first fixed area extends from at least part of the edge of the vibration area, and the extension direction of the first fixed area is at an angle to the first plane, which can reduce or avoid the first fixed area occupying the first plane, and can increase the effective vibration area of ​​the diaphragm within a limited area, thereby helping to improve the sound performance of the speaker assembly. In addition, the diaphragm or the bracket has a first supporting surface, the shell has a second supporting surface, and the angle between the first supporting surface or the second supporting surface and the first plane bracket is less than 90°. When the first supporting surface and the second supporting surface are against each other, it can ensure that there is a supporting force perpendicular to the first plane between the diaphragm or the bracket and the shell, thereby ensuring the installation accuracy of the diaphragm or the bracket and the shell perpendicular to the first plane.

[0006] In one example, the transmittance of the first fixing area can be greater than or equal to 50%, or the transmittance of the bracket in a projection area perpendicular to the mounting surface is greater than or equal to 50%. When the first fixing area and the mounting surface are welded by laser welding, the welding effect can be improved.

[0007] In one example, the melting point temperature difference between the first fixing area and the mounting surface is less than or equal to 100° C. When welding the first fixing area and the mounting surface, excessive melting of the first fixing area or the mounting surface can be avoided, thereby improving the welding effect.

[0008] When the first fixing area is set, the material of the first fixing area includes at least one of thermoplastic polyurethane elastomer, thermoplastic polyester elastomer or rubber.

[0009] In one example, the angle between the extension direction of the first fixed area and the first plane is 90°, so as to avoid the first fixed area occupying the area within the first plane, thereby increasing the effective vibration area of ​​the diaphragm within a limited area, thereby helping to improve the sound performance of the speaker assembly.

[0010] In one example, the diaphragm further includes a second fixing area. The second fixing area is located in the first plane, and the second fixing area is located at the edge of the vibration area. The first supporting surface is located on the surface of the second fixing area that is away from the extension direction of the first fixing area. Providing the second fixing area at the edge of the vibration area can reduce the influence of the second fixing area on the vibration area. In addition, the first supporting surface is located in the second fixing area, which can ensure the position accuracy between the diaphragm and the housing.

[0011] In one example, the vibration zone includes an annular folded ear with a corner, and the second fixed area is located outside the corner to avoid the second fixed area reducing the effective vibration area of ​​the diaphragm, thereby ensuring the sound performance of the speaker assembly.

[0012] In one example, the bracket includes a plurality of bosses, each boss has a surface facing away from the extension direction of the first fixing area, and the first supporting surface is located on each surface. The first supporting surface is arranged on the boss to ensure the position accuracy between the bracket and the housing.

[0013] In one example, the bracket includes a convex ring extending along the outer periphery of the bracket, the convex ring has a surface facing away from the extension direction of the first fixing area, and the first supporting surface is located on the surface. The first supporting surface is arranged on the boss to ensure the position accuracy between the bracket and the housing.

[0014] In a second aspect, the present application also provides an electronic device, including a control circuit and the above-mentioned speaker assembly, wherein the speaker assembly includes a coil, and the control circuit is connected to the coil in the speaker assembly to provide an alternating current to the coil so that the speaker assembly vibrates and produces sound. By adopting the above-mentioned speaker assembly, the electronic device has better sound performance, and also has better assembly convenience and position accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A cross-sectional view of a partial structure of a commonly used loudspeaker assembly provided in an embodiment of the present application;

[0016] Figure 2 A schematic diagram of a planar structure of a diaphragm provided in an embodiment of the present application;

[0017] Figure 3 A schematic cross-sectional view of a speaker assembly provided in an embodiment of the present application;

[0018] Figure 4 A schematic diagram of a three-dimensional structure of a diaphragm provided in an embodiment of the present application;

[0019] Figure 5 A cross-sectional schematic diagram of another loudspeaker assembly provided in an embodiment of the present application;

[0020] Figure 6 A cross-sectional schematic diagram of another loudspeaker assembly provided in an embodiment of the present application;

[0021] Figure 7 A cross-sectional schematic diagram of another loudspeaker assembly provided in an embodiment of the present application;

[0022] Figure 8 A schematic diagram of the assembly structure of another loudspeaker assembly provided in an embodiment of the present application;

[0023] Fig. 9 A plan view of a second body of an auxiliary tooling provided in an embodiment of the present application;

[0024] Fig.10 A schematic diagram of the three-dimensional structure of a speaker assembly provided in an embodiment of the present application;

[0025] Fig.11 for Fig.10 Schematic diagram of the cross-sectional structure in the CC direction;

[0026] Fig.12 A schematic diagram of the three-dimensional structure of another loudspeaker assembly provided in an embodiment of the present application;

[0027] Fig.13 for Fig.12 Schematic diagram of the cross-sectional structure along the middle DD direction;

[0028] Fig.14 A schematic diagram of the three-dimensional structure of another loudspeaker assembly provided in an embodiment of the present application;

[0029] Fig.15 for Fig.14 Schematic diagram of the cross-sectional structure along the EE direction;

[0030] Fig.16 A schematic diagram of the three-dimensional structure of a mobile phone provided in an embodiment of the present application. DETAILED DESCRIPTION

[0031] In order to make the objectives, technical solutions and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings.

[0032] In order to facilitate understanding of the speaker assembly provided in the embodiment of the present application, its application scenario is first introduced below.

[0033] The speaker assembly is an electro-acoustic transducer device that can convert electrical signals into sound waves for external playback. In practical applications, the speaker assembly can be used in a variety of electronic devices that have sound playback requirements. For example, the speaker assembly can be used in electronic devices such as headphones, smart watches, tablets, laptops, televisions, and wearable electronic devices.

[0034] In practical applications, the types and specific structures of speaker assemblies are varied, but the sound-generating principles of speaker assemblies of different types and structures are basically the same, that is, they all generate sound through the vibration of the diaphragm.

[0035] like Figure 1 and Figure 2 As shown, Figure 1 It is a cross-sectional view of a partial structure of a commonly used loudspeaker assembly 01. Figure 2 It is a schematic diagram of the planar structure of the diaphragm 011. The loudspeaker assembly 01 may include a diaphragm 011, a bracket 012, a coil 013 and a permanent magnet 014. The diaphragm 011 and the permanent magnet 014 are both fixedly connected to the bracket 012. The diaphragm 011 includes a central area 0111, a folded ear 0112 and a fixed area 0113. The central area 0111 and the fixed area 0113 are separated by the folded ear 0112. The coil 013 is fixed in the central area 0111, and the coil 013 is located in the magnetic field of the permanent magnet 014. When an alternating current is passed through the coil 013, the coil 013 drives the central area 0111 of the diaphragm 011 to vibrate, thereby emitting sound. It is understandable that, in actual application, the sound of the speaker assembly 01 is mainly generated by the vibration of the central area 0111, but driven by the central area 0111, the folded ear 0113 will also vibrate, that is, the central area 0111 and the folded ear 014 can both be considered as the vibration area of ​​the diaphragm 011.

[0036] In the current speaker assembly 01, the diaphragm 011 is fixed to the bracket 012 by glue. Specifically, glue 015 is applied between the fixing area 0113 of the diaphragm 011 and the bracket 012, and the fixing connection between the diaphragm 011 and the bracket 012 can be achieved by the glue 015. The fixing area 0113 of the diaphragm 011 is fixedly connected to the bracket 012, so the fixing area 0113 does not participate in the vibration and sound generation.

[0037] In practical applications, the effective vibration area of ​​the diaphragm 011 is the main factor affecting the sound efficiency, output loudness and other performance of the speaker assembly 01. The larger the effective vibration area of ​​the diaphragm 011, the better the performance of the speaker assembly 01. Therefore, how to increase the effective vibration area of ​​the diaphragm 011 within a limited area is the main means to improve the performance of the speaker assembly 01.

[0038] like Figure 1 and Figure 2 As shown, the central area 0111, the folded ears 0112 and the fixed area 0113 of the diaphragm 011 are all located in the same general plane A. Since the fixed area 0113 occupies part of the area in the plane A and does not participate in the vibration and sound generation, the fixed area 0113 located in the plane A will reduce the effective vibration area of ​​the diaphragm 011 in the plane A, which is not conducive to improving the sound generation performance of the speaker assembly 01.

[0039] It should be noted that the above-mentioned plane A refers to a rough plane. For example, the folded ear 0112 is a raised three-dimensional shape, but the folded ear 0112 is also considered to be in the plane A. Or it can be understood that in the above example, the central area 0111 is a flat plate, but in actual application, the central area 0111 can also be a wavy shape or other three-dimensional structure perpendicular to the plane A. Therefore, the central area 0111 with a three-dimensional structure is also considered to be in the plane A.

[0040] Based on the technical problems existing in the above-mentioned speaker assembly 01, an embodiment of the present application provides a speaker assembly with better sound performance.

[0041] In order to make the objectives, technical solutions and advantages of the present application more clear, the present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0042] like Figure 3As shown, in an example provided in the present application, the speaker assembly 10 includes a diaphragm 11 and a bracket 12. The diaphragm 11 includes a vibration area 111 and a first fixed area 112. The vibration area 111 is roughly located in the first plane B, and the diaphragm 11 mainly relies on the vibration of the vibration area 111 to produce sound, and the first fixed area 112 is used to fix the diaphragm 11 to the bracket 12. The first fixed area 112 extends from at least part of the edge of the vibration area 111, and the extension direction of the first fixed area 112 is perpendicular to the first plane B. The first fixed area 112 will not form a significant occupation of the first plane B. Therefore, within the first plane B, the effective vibration area of ​​the diaphragm 11 can be effectively improved, which is conducive to improving the sound performance of the speaker assembly 10 in a smaller area.

[0043] Specifically, in the example provided in the present application, the vibration area 111 of the diaphragm 11 refers to the area that can generate vibration, and the first fixed area 112 refers to the area in the diaphragm 11 for fixing with the bracket 12. The vibration area 111 includes a central area 1111 and a folded ear 1112, and the folded ear 1112 is an arc-shaped ring structure. The folded ear 1112 is connected between the central area 1111 and the first fixed area 112, and is used to achieve a fixed connection between the central area 1111 and the first fixed area 112. In addition, the folded ear 1112 can allow the diaphragm 11 to generate vibrations in a direction perpendicular to the first plane B, thereby ensuring the sound performance of the vibration area 111. Of course, in actual application, after the vibration area 111 generates vibrations, the folded ear 1112 will also generate vibrations driven by the central area 1111. Therefore, in the example provided in the present application, the central area 1111 and the folded ear 1112 are defined as the vibration area 111 of the diaphragm 11.

[0044] In actual application, the central area 1111 and the folded ears 1112 of the vibration area 111 can be an integrally formed structure or can be separate structural parts. For example, the vibration area 111 can be manufactured using an integral molding process to form the central area 1111 and the folded ears 1112, and to achieve a fixed connection between the central area 1111 and the folded ears 1112. Alternatively, the central area 1111 and the folded ears 1112 can be molded separately, and then the central area 1111 and the folded ears 1112 can be fixedly connected by welding or bonding. In specific settings, the molding method and preparation process of the vibration area 111 can be reasonably selected according to actual needs.

[0045] The first fixing area 112 extends from the edge of the folded ear 1112 in a direction perpendicular to the first plane B to avoid the first fixing area 112 occupying the first plane B, thereby increasing the effective vibration area of ​​the diaphragm 11 within a limited area.

[0046] For details, please refer to Figure 1 and Figure 3 .exist Figure 1In the example provided in , the central area 0111, the folded ears 0112 and the fixed area 0113 are all located in plane A. Figure 3 In the example provided in , the vibration area 111 is located in the first plane B, and the first fixed area 112 extends in a direction perpendicular to the first plane B. Therefore, the first fixed area 112 does not significantly occupy the space in the first plane B. This allows a larger area of ​​the vibration area 111 to be arranged in the first plane B, which is beneficial to increasing the effective vibration area of ​​the diaphragm 11. Or it can be understood that Figure 1 In the example provided in FIG. 1 , there are not only the central area 0111 and the folded ear 0112 but also the fixed area 0113 in plane A. However, in Figure 3 In the example provided in the specification, only the central area 1111 and the folded ears 1112 are included in the first plane B. Therefore, in the example provided in the present application, the occupation of the first fixing area 112 in the first plane B can be avoided, so that a larger area of ​​the central area 1111 and the folded ears 1112 can be arranged in the effective first plane B.

[0047] In specific applications, the first fixing area 112 and the folding ear 1112 may be integrally formed. Alternatively, the first fixing area 112 may be fixedly connected to the folding ear 1112 by welding or bonding. In specific settings, the forming method and preparation process of the folding ear 1112 may be reasonably selected according to actual needs.

[0048] In addition, in the example provided in this application, the bracket 12 has a mounting surface 121 , and the mounting surface 121 is perpendicular to the first plane B. The surface of the first fixing area 112 facing the mounting surface 121 is connected to the mounting surface 121 , thereby achieving a fixed connection between the diaphragm 11 and the bracket 12 .

[0049] Specifically, the first fixing area 112 and the mounting surface 121 can be welded by laser welding. In addition, no auxiliary connection material such as glue is provided between the first fixing area 112 and the mounting surface 121, which can effectively improve the connection reliability and convenience between the diaphragm 11 and the bracket 12.

[0050] In specific applications, the transmittance of the first fixed area 112 can be greater than or equal to 50%. Among them, the transmittance of the first fixed area 112 can be 50%, 51%, 55%, 60% or 90%, etc. In practical applications, the transmittance of the first fixed area 112 can be reasonably set, which will not be repeated here. When the first fixed area 112 and the bracket 12 are welded by laser welding process. The laser can effectively penetrate the first fixed area 112, so that the interface between the first fixed area 112 and the mounting surface 121 melts to form a molten pool. After the molten pool solidifies, the fixed connection between the diaphragm 11 and the bracket 12 can be achieved. Among them, the material of the first fixed area 112 can specifically include at least one of thermoplastic polyurethane (TPU), thermoplastic polyester elastomer (TPEE) or rubber.

[0051] In addition, the melting point temperatures of the materials of the first fixing area 112 and the mounting surface 121 of the bracket 12 can be roughly the same to ensure the welding effect. In the specific setting, the melting point of the first fixing area 112 can be the same as the melting point of the mounting surface 121 in the bracket 12. Alternatively, the melting point temperature difference between the first fixing area 112 and the mounting surface 121 can be less than or equal to 100°C to prevent the first fixing area 112 or the mounting surface 121 from excessive melting and other undesirable phenomena, thereby ensuring the welding effect between the first fixing area 112 and the mounting surface 121. In addition, when welding, auxiliary tools such as a pressure block can be used to apply pressure to the first fixing area 112 and the bracket 12 so that the first fixing area 112 and the mounting surface 121 fit tightly, and then the first fixing area 112 and the bracket 12 are welded using a welding process so that the interface between the first fixing area 112 and the mounting surface 121 melts to form a molten pool. Among them, the formed molten pool can be a heat-affected zone with a width greater than or equal to 0.5 mm, so as to achieve good welding between the first fixing area 112 and the mounting surface 121. In addition, the coverage area of ​​the laser can be slightly larger than the interface between the first fixing area 112 and the bracket 12 to prevent a gap from appearing between the first fixing area 112 and the mounting surface 121, thereby avoiding the generation of slapping noise between the first fixing area 112 and the bracket 12, and ensuring the sound performance of the speaker assembly 10. In addition, in actual applications, the pressing block can specifically be glass or resin with high light transmittance. In actual applications, the specific type and shape of the pressing block can be reasonably selected according to actual needs.

[0052] It should be noted that in the above example, the transmittance of the first fixing area 112 is greater than or equal to 50%, so as to facilitate the welding connection between the first fixing area 112 and the mounting surface 121. However, in other examples, the transmittance of the bracket 12 in the projection area perpendicular to the mounting surface 121 may also be greater than or equal to 50%. When welding, the laser can be located on the side of the bracket 12 away from the mounting surface 121, and the light beam emitted by the laser can pass through the bracket 12 and projected onto the interface between the first fixing area 112 and the mounting surface 121 to achieve welding between the first fixing area 112 and the mounting surface 121. In the specific setting, the transmittance and material of the bracket 12 in the projection area perpendicular to the mounting surface 121 can be similarly set with reference to the above-mentioned first fixing area 112, and will not be repeated here.

[0053] When the first fixing area 112 is configured, the structural type of the first fixing area 112 can be various.

[0054] For example, Figure 4 As shown, in an example provided in the present application, the first fixing area 112 extends vertically along the edge of the folded ear 1112. That is, along the edge of the folded ear 1112, the first fixing area 112 is a continuous structure. However, in other examples, the first fixing area 112 may also be discontinuous. In general, the first fixing area 112 may extend from at least part of the edge of the vibration area 111.

[0055] In addition, in the above example, the extension direction of the first fixing area 112 is perpendicular to the first plane B, that is, the angle between the extension direction of the first fixing area 112 and the first plane B is about 90°. However, in other examples, the angle between the extension direction of the first fixing area 112 and the first plane B can also be any value within the range of greater than 0° and less than 90°.

[0056] For example, Figure 5 As shown, in another example provided in the present application, the angle between the extension direction of the first fixing area 112 and the first plane B is approximately 45°.

[0057] When the first fixing area 112 is specifically set, the angle between the first fixing area 112 and the first plane B can be reasonably set according to actual needs, which will not be elaborated here.

[0058] In addition, if Figure 6 As shown, in another example provided in the present application, the speaker assembly 10 further includes a housing 13 , and the outline formed by the housing 13 and the diaphragm 11 can constitute a front cavity of the speaker assembly 10 , thereby ensuring the sound performance of the speaker assembly 10 .

[0059] In specific configuration, the connection between the diaphragm 11 or the bracket 12 and the housing 13 may be various.

[0060] For example, Figure 6 As shown, in an example provided in the present application, the diaphragm 11 is fixedly connected to the housing 13 .

[0061] Specifically, the housing 13 has a mounting surface 131 disposed toward the first fixing area 112, and the mounting surface 131 is attached to and fixed to the first fixing area 112. In specific settings, the mounting surface 131 and the first fixing area 112 can be fixedly connected by welding, bonding, etc. In specific settings, the fixing method between the first fixing area 112 and the housing 13 can be reasonably selected according to actual needs.

[0062] In addition, since the extension direction of the first fixing area 112 is perpendicular to the first plane B, and the mounting surface 131 is also perpendicular to the first plane B, when the diaphragm 11 and the housing 13 are mounted, there is no corresponding positioning structure between the diaphragm 11 and the housing 13, and it is difficult to ensure the position accuracy of the diaphragm 11 and the housing 13 in the direction perpendicular to the first plane B. Therefore, in some examples, auxiliary tooling can be used to achieve the position positioning between the diaphragm 11 and the housing 13.

[0063] For ease of understanding, the specific structure of the speaker assembly 10 is first exemplarily described below.

[0064] like Figure 7 As shown, in actual application, the speaker assembly 10 also includes a coil 14 and a permanent magnet 15. The coil 14 is fixed to the central area 1111 of the diaphragm 11. The permanent magnet 15 is fixedly connected to the bracket 12, and the coil 14 is located in the magnetic field of the permanent magnet 15. When an alternating current is passed through the coil 14, the coil 14 drives the central area 1111 of the diaphragm 11 to vibrate, thereby emitting sound. In a specific setting, the coil 14 and the central area 1111 of the diaphragm 11 can be fixedly connected by bonding or welding. The permanent magnet 15 and the bracket 12 can be fixedly connected by bonding. In a specific setting, the coil 14 and the central area 1111, and the permanent magnet 15 and the bracket 12 can be fixedly connected by the current more conventional methods, and this application does not limit this.

[0065] like Figure 8 and Fig. 9 As shown, in an example provided in the present application, an auxiliary tooling is also provided.

[0066] Specifically, the auxiliary tooling includes a first body 21 and a second body 22 .

[0067] The first body 21 has a groove for accommodating the outer shell 13 . By placing the outer shell 13 in the groove of the first body 21 , the first body 21 and the outer shell 13 can be positioned.

[0068] The second body 22 has a magnet 221, which can effectively attract the permanent magnet 15 or the coil 14 through its own magnetic attraction. In addition, since the bracket 12 and the diaphragm 11 are fixedly connected by welding, the whole composed of the diaphragm 11 and the bracket 12 can be effectively positioned in the second body 22.

[0069] During assembly, glue may be applied to the mounting surface 131 of the housing 13. After the first body 21 and the second body 22 are buckled and fixed, the diaphragm 11 (or the bracket 12) and the housing 13 can be precisely positioned. In addition, the mounting surface 131 and the first fixing area 112 can also be effectively fixedly connected by glue.

[0070] After the glue is cured, the first body 21 and the second body 22 can be detached.

[0071] In addition, in the example provided in the present application, the second body 22 further includes a through hole 222. The through hole 22 allows a rod-shaped push object 23 to extend into and push the bracket 12, so as to facilitate the detachment of the second body 22 from the diaphragm 11 or the bracket 12.

[0072] Specifically, the second body 22 and the diaphragm 11 or the bracket 12 are relatively fixed by magnetic attraction. When the second body 22 is detached, in order to prevent the magnetic attraction from pulling the solidified glue, a rod-shaped or bar-shaped pusher 23 is inserted into the through hole 222 and abuts against the bracket 12, and then the second body 22 is detached upward with force, so as to achieve the detachment between the second body 22 and the diaphragm 11 or the bracket 12.

[0073] It is understandable that, in specific implementation, other types of auxiliary work may also be used to achieve the position positioning between the diaphragm 11 or the bracket 12 and the housing 13, which will not be elaborated here.

[0074] Alternatively, in some examples, a corresponding positioning or connecting structure may be provided in the support 12 or the diaphragm 11 to achieve a reliable connection between the diaphragm 11 or the support 12 and the housing 13 .

[0075] For example, Fig.10 and Fig.11As shown, in an example provided in the present application, the diaphragm 11 includes a first supporting surface 1131, and the housing 13 includes a second supporting surface 132. The first supporting surface 1131 and the second supporting surface 132 are abutted against each other in a direction perpendicular to the first plane B, so that the diaphragm 11 and the housing 13 can be positioned in a direction perpendicular to the first plane B.

[0076] Specifically, if Figure 4 As shown, the diaphragm 11 further includes four second fixing areas 113, which are respectively located at four corners of the diaphragm 11. The first supporting surface 1131 is located on the surface of the second fixing area 113 away from the extension direction of the first fixing area 112.

[0077] like Fig.10 and Fig.11 As shown, the housing 13 includes four second supporting surfaces 132, and the four second supporting surfaces 132 are respectively located at the four corners of the housing. The four second supporting surfaces 132 correspond one to one with the four first supporting surfaces 1131. After the diaphragm 11 and the housing 13 are assembled, the first supporting surface 1131 fits with the second supporting surface 132, thereby achieving the connection between the diaphragm 11 and the housing 13.

[0078] In specific configuration, glue may be applied between the first supporting surface 1131 and the second supporting surface 132, so as to achieve a fixed connection between the diaphragm 11 and the housing 13. Alternatively, in some embodiments, the first supporting surface 1131 and the second supporting surface 132 may also be fixedly connected by welding or the like.

[0079] When the second fixing area 113 is set, the transmittance of the second fixing area 113 can be greater than or equal to 50%. The transmittance of the second fixing area 113 and the first fixing area 112 can be the same or substantially the same. In addition, the material of the second fixing area 113 and the first fixing area 112 can be substantially the same. When selecting the transmittance and material of the second fixing area 113, similar settings can be made for the first fixing area 112 as described above, and no further description is given here.

[0080] In the example provided in the present application, the second fixing area 113 is located at the four corners of the diaphragm 11, the folded ear 1112 is a ring structure with four corners, and the four second fixing areas 113 are respectively located outside the corners of the folded ear 1112. That is, the second fixing area 113 is located on the side of the folded ear 1112 away from the central area 1111, so the second fixing area 113 will not reduce the effective vibration area of ​​the diaphragm 11.

[0081] It is understandable that, in the above example, the first supporting surface 1131 is disposed in the diaphragm 11 . In other examples, the first supporting surface 1131 may also be disposed on the bracket 12 .

[0082] For example, Fig.12 and Fig.13 As shown, in another example provided in the present application, the bracket 12 includes a plurality of bosses 122 , each boss 122 has a surface facing away from the extension direction of the first fixing area 112 , and a first supporting surface 1221 is located on each surface.

[0083] In addition, the housing 13 has a plurality of bosses 133 corresponding to the bosses 122 in the bracket 12 , and each boss 133 has a surface facing the first supporting surface 1221 , and the second supporting surface 132 is located in the surface.

[0084] When the bosses 122 and 133 are arranged, the number and position layout of the bosses 122 and 133 can be reasonably adjusted according to actual needs, which will not be elaborated here.

[0085] In addition, if Fig.14 and Fig.15 As shown, in another example provided in the present application, the bracket 12 includes a protruding ring 123 extending along the outer periphery of the bracket 12. The protruding ring 123 has a surface facing away from the extension direction of the first fixing area 112, and the first bearing surface 1231 is located in the surface.

[0086] In addition, the housing 13 has a protruding ring 134 opposite to the protruding ring 123 . The protruding ring 134 has a surface facing the first supporting surface 1231 , and the second supporting surface 132 is located in the surface.

[0087] It can be understood that in the above examples, both the first supporting surface and the second supporting surface are planes parallel to the first plane B. However, in other examples, the first supporting surface or the second supporting surface may also be a stepped surface or a curved surface. Alternatively, the angle between the first supporting surface and the first plane B may also be any value greater than or equal to 0° and less than 90°. Correspondingly, the angle between the second supporting surface and the first plane B may also be any value greater than or equal to 0° and less than 90°, which will not be elaborated here.

[0088] In practical applications, the speaker assembly 10 can be used in electronic devices that require sound playback, such as headphones, smart watches, tablet computers, laptop computers, televisions, and wearable electronic devices.

[0089] For example, Fig.16 The speaker assembly 10 can be used in a mobile phone. Specifically, the speaker assembly 10 can be arranged at the top of the mobile phone or at the bottom of the mobile phone.

[0090] In specific applications, the electronic device may further include a control circuit, which may be connected to the coil 14 in the speaker assembly 10 to provide an alternating current to the coil 14 so as to make the diaphragm 11 in the speaker assembly 10 vibrate and produce sound.

[0091] In the various embodiments of the present application, unless otherwise specified or provided for in any logical conflict, the terms and / or descriptions between the different embodiments are consistent and may be referenced to each other, and the technical features in the different embodiments may be combined to form new embodiments according to their inherent logical relationships.

[0092] In this application, "multiple" means two or more. "And / or" describes the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone, where A and B can be singular or plural.

[0093] It is understood that the various numbers involved in the embodiments of the present application are only for the convenience of description and are not used to limit the scope of the embodiments of the present application. The size of the sequence number of the above-mentioned processes does not mean the order of execution, and the execution order of each process should be determined by its function and internal logic.

Claims

1. A speaker assembly, characterized in that: Including diaphragm, bracket and shell; The diaphragm comprises a vibration region and a first fixing region, wherein the first fixing region extends from at least a portion of an edge of the vibration region; Wherein, the vibration area is located in a first plane, and the extension direction of the first fixing area forms an angle with the first plane; The bracket has a mounting surface, and the first fixing area is welded to the mounting surface; The diaphragm or the support has a first supporting surface, the housing has a second supporting surface, the first supporting surface is fixedly connected to the second supporting surface, and the angle between the first supporting surface or the second supporting surface and the first plane is less than 90°.

2. The loudspeaker assembly according to claim 1, characterized in that The light transmittance of the first fixing area is greater than or equal to 50%, or the light transmittance of the bracket in a projection area perpendicular to the installation surface is greater than or equal to 50%.

3. The loudspeaker assembly according to claim 1 or 2, characterized in that: The difference in melting point temperature between the first fixing area and the mounting surface is less than or equal to 100° C.

4. The loudspeaker assembly according to any one of claims 1 to 3, characterized in that: The material of the first fixing area includes at least one of thermoplastic polyurethane elastomer, thermoplastic polyester elastomer or rubber.

5. The loudspeaker assembly according to any one of claims 1 to 4, characterized in that: An angle between an extension direction of the first fixing area and the first plane is 90°.

6. The loudspeaker assembly according to any one of claims 1 to 5, characterized in that: The diaphragm further comprises a second fixing area; The second fixing area is located in the first plane, and the second fixing area is located at an edge of the vibration area; Wherein, the first supporting surface is located on a surface of the second fixing area that is away from an extension direction of the first fixing area.

7. The loudspeaker assembly according to claim 6, characterized in that The vibration area includes a ring-shaped folded ear, the folded ear has a corner, and the second fixing area is located outside the corner.

8. The loudspeaker assembly according to any one of claims 1 to 5, characterized in that: The bracket includes a plurality of bosses, each of which has a surface facing away from the extension direction of the first fixing area; The first supporting surface is located on each of the surfaces.

9. The loudspeaker assembly according to any one of claims 1 to 5, characterized in that: The bracket includes a raised ring extending along the periphery of the bracket; The convex ring has a surface facing an extension direction away from the first fixing area, and the first supporting surface is located on the surface.

10. An electronic device, characterized in that: The invention comprises a control circuit and a speaker assembly as claimed in any one of claims 1 to 9, wherein the speaker assembly comprises a coil, and the control circuit is electrically connected to the coil.

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