Front cover for loudspeaker, loudspeaker module and mobile terminal

Abstract

The utility model belongs to the technical field of mobile communication equipment, and particularly relates to a front cover for a loudspeaker, a loudspeaker module and a mobile terminal. The front cover for the loudspeaker comprises a metal sheet, the metal sheet is provided with a via hole, and the surface of the metal sheet is provided with a silica gel ring. According to the utility model, a better sound transmission effect of the loudspeaker can be realized, the sound transmission obstruction is small, the sound can clearly and naturally pass through the loudspeaker, the sound output of audio equipment can maintain high fidelity, and the loudspeaker can have stable performance under different frequencies; moreover, good damping characteristics are achieved, appropriate damping adjustment can be carried out on sound, reflection and scattering of the sound are reduced, distortion is reduced, and the sound quality is improved; the loudspeaker module also has excellent protection performance, realizes effective water and dust prevention, and can effectively prevent water, dust and other small particles from entering the loudspeaker module; and the anti-impact performance is higher, good protection is provided for internal parts, and damage caused by external force collision is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of mobile communication equipment technology, and in particular relates to a front cover for a speaker, a speaker module and a mobile terminal. Background Technology

[0002] A speaker module is an important acoustic component in mobile terminals, used to convert acoustic electrical signals into sound signals for transmission; it is an energy conversion device. A speaker module typically includes a housing, within which a speaker unit is housed. The speaker unit includes a vibration system and a magnetic circuit system. In related technologies, to ensure the strength of the speaker module or to increase the internal volume of the housing, a metal plate is placed on the housing corresponding to the speaker unit, or the entire upper housing is made of a metal plate made of metal or alloy. However, adding this metal plate inevitably reduces the airtightness of the housing, worsens its waterproof and dustproof performance, and also affects sound propagation. Utility Model Content

[0003] The purpose of this invention is to provide a front cover for a speaker, a speaker module, and a mobile terminal, aiming to solve the technical problem of low airtightness of the metal sheet designed in the speaker module in the prior art.

[0004] To achieve the above objectives, this utility model provides a front cover for a speaker, comprising a metal sheet with a through hole and a silicone ring surrounding the through hole on the surface of the metal sheet.

[0005] Optionally, the silicone ring is formed and attached to the surface of the metal sheet by injection molding.

[0006] Optionally, an adhesive layer is provided on the surface of the metal sheet, and the silicone ring is bonded to the metal sheet through the adhesive layer.

[0007] Optionally, the silicone ring includes an integrally formed base plate portion and an overhang portion, the overhang portion being located on the base plate portion and extending towards the center of the silicone ring, and the base plate portion being connected to the surface of the metal sheet.

[0008] Optionally, the silicone ring includes an integrally formed insertion portion and an extension portion, the extension portion being located on the insertion portion and extending towards the center of the silicone ring, and the surface of the metal sheet being provided with a recessed groove, the insertion portion being inserted into and connected to the recessed groove.

[0009] Optionally, the silicone ring further includes a plurality of convex round portions spaced apart on the insertion portion, and the recessed groove forms a convex round groove at the position corresponding to each of the convex round portions, and each of the convex round portions is adapted to and connected to each of the convex round grooves respectively.

[0010] Optionally, the silicone ring includes an integrally formed base plate and an overhanging portion. The overhanging portion is located on the base plate and extends toward the center of the silicone ring. The surface of the metal sheet is formed with a bent step. The base plate has a step surface with a shape adapted to the bent step and is connected to the bent step through the step surface.

[0011] Optionally, the silicone ring further includes a flat plate portion that extends from one side of the base plate portion and is connected to the surface of the metal sheet.

[0012] This utility model also provides a speaker module, which includes the aforementioned front cover for a speaker.

[0013] This utility model also provides a mobile terminal, which includes the above-mentioned speaker module.

[0014] The above-mentioned technical solutions for the front cover of the speaker, the speaker module, and the mobile terminal provided in this utility model embodiment have at least one of the following technical effects: The front cover for the speaker of this utility model is suitable for the speaker module of the mobile terminal. When applied in the speaker module, it can help the speaker to have excellent acoustic performance, achieve better sound transmission effect, minimize the obstruction of sound propagation, allow sound to pass through clearly and naturally, maintain high fidelity of audio device sound output, and have stable performance at different frequencies; it also has good damping characteristics, which can appropriately dampen the sound, reduce sound reflection and scattering, reduce distortion, and improve sound quality; moreover, it has excellent protective performance, achieving effective waterproof and dustproof, effectively blocking moisture, dust, and other small particles from entering the speaker module, protecting the acoustic components such as the speaker and microphone in the speaker module, extending the service life of the speaker module, and also has stronger impact resistance, which can withstand a certain amount of external impact, providing good protection for the internal speaker module components and reducing damage caused by external collisions. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of the front cover for a speaker provided in Embodiment 1 of this utility model.

[0017] Figure 2 This is a cross-sectional view of the front cover for a speaker provided in Embodiment 1 of this utility model.

[0018] Figure 3 for Figure 2 A magnified view of the local structure at point A in the middle.

[0019] Figure 4 This is a schematic diagram of the structure of the front cover for a speaker provided in Embodiment 2 of this utility model.

[0020] Figure 5 This is a cross-sectional view of the front cover for a speaker provided in Embodiment 2 of this utility model.

[0021] Figure 6 for Figure 5 A magnified view of the local structure at point B.

[0022] Figure 7 This is an exploded view of the structure of the front cover for a speaker provided in Embodiment 2 of this utility model.

[0023] Figure 8 This is a schematic diagram of the structure of the silicone ring for the front cover of the speaker provided in Embodiment 2 of this utility model.

[0024] Figure 9 This is a cross-sectional view of a metal sheet for the front cover of a speaker provided in Embodiment 2 of this utility model.

[0025] Figure 10 This is a schematic diagram of the structure of the front cover for a speaker provided in Embodiment 3 of this utility model.

[0026] Figure 11 This is a cross-sectional view of the front cover for a speaker provided in Embodiment 3 of this utility model.

[0027] Figure 12 for Figure 11 A magnified schematic diagram of the local structure at point C.

[0028] Figure 13 This is a schematic diagram of the structure of the front cover for a speaker provided in Embodiment 4 of this utility model.

[0029] Figure 14 This is a cross-sectional view of the front cover for a speaker provided in Embodiment 4 of this utility model.

[0030] Figure 15 for Figure 14 A magnified schematic diagram of the local structure at point D.

[0031] The following are the labeling elements in the figure:

[0032] 10—Metal sheet; 11—Through hole; 12—Sinking groove

[0033] 13—convex groove; 14—bent step; 20—silicone ring

[0034] 21—Overhang section 22—Base plate section 23—Interlocking section

[0035] 24—convex round part; 25—stepped surface; 26—flat plate part. Detailed Implementation

[0036] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below 1 to 15 with reference to the accompanying drawings are exemplary and intended to explain the embodiments of the present invention, and should not be construed as limiting the present invention.

[0037] In the description of the embodiments of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0038] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0039] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0040] Example 1.

[0041] In this embodiment of the present invention, such as Figure 1As shown, a front cover for a speaker is provided, including a metal sheet 10. The metal sheet 10 has through holes 11, and a silicone ring 20 is provided around the outer periphery of each through hole 11 on the surface of the metal sheet 10. It should be noted that the metal sheet 10 can have multiple through holes 11. When there are multiple through holes 11, the silicone ring 20 can surround the remaining periphery of all through holes 11. Alternatively, it can surround the periphery of a single through hole 11.

[0042] Specifically, the front cover for the speaker in this embodiment is suitable for speaker modules in mobile terminals. When applied to a speaker module, it can enhance the speaker's acoustic performance, achieving better sound transmission. It minimizes obstruction to sound propagation, allowing sound to pass through clearly and naturally, maintaining high fidelity in the audio device's sound output, and providing stable performance at different frequencies. Furthermore, it has good damping characteristics, allowing for appropriate damping adjustment of sound, reducing sound reflection and scattering, lowering distortion, and improving sound quality. It also boasts excellent protective performance, effectively preventing water and dust from entering the speaker module, protecting acoustic components such as the speaker and microphone, and extending the lifespan of the speaker module. Additionally, it has stronger impact resistance, able to withstand certain external impacts, providing good protection for the internal speaker module components and reducing damage caused by external collisions.

[0043] In this embodiment, preferably, the silicone ring 20 is formed and connected to the surface of the metal sheet 10 by injection molding. Injection molding of the silicone ring 20 can effectively improve production efficiency, ensure a more stable connection between the formed silicone ring 20 and the metal sheet 10, and result in better consistency of the formed silicone ring 20.

[0044] In this embodiment, an adhesive layer (not shown) is provided on the surface of the metal sheet 10, and the silicone ring 20 is bonded to the metal sheet 10 through the adhesive layer. An adhesive layer can be provided on the surface of the metal sheet 10 before injection molding the silicone ring 20. Then, during injection molding, the silicone ring 20 is bonded to this adhesive layer, achieving a stable connection between the silicone ring 20 and the metal sheet 10.

[0045] Furthermore, such as Figures 2-3As shown, the silicone ring 20 includes an integrally formed base plate portion 22 and an overhang portion 21. The overhang portion 21 is located on the base plate portion 22 and extends towards the center of the silicone ring 20, where the center of the silicone ring 20 refers to the center of the space formed by the circular silicone ring 20. The base plate portion 22 is connected to the surface of the metal sheet 10. Due to the arrangement of the overhang portion 21, the side of the silicone ring 20 facing away from the metal sheet 10 is in a contracted state, which ensures excellent damping performance, protective performance, and impact resistance. The base plate portion 22 is designed to achieve a good connection with the metal sheet 10.

[0046] Example 2.

[0047] In this embodiment, as Figures 4-7 As shown in Figure 9, the silicone ring 20 includes an integrally formed insertion portion 23 and an extension portion 21. The extension portion 21 is located on the insertion portion 23 and extends towards the center of the silicone ring 20. A recessed groove 12 is provided on the surface of the metal sheet 10, and the insertion portion 23 is inserted into the recessed groove 12. In this way, the connection between the insertion portion 23 and the recessed groove 12 is further enhanced, thereby strengthening the stability of the connection between the silicone ring 20 and the metal sheet 10.

[0048] In this embodiment, see Figures 7-9 The silicone ring 20 also includes a plurality of convex circular portions 24 spaced apart on the insertion portion 23. The recessed groove 12 forms a convex circular groove 13 at a position corresponding to each of the convex circular portions 24, and each convex circular portion 24 is adapted to and connected to each of the convex circular grooves 13. The cooperation between the convex circular portions 24 and the convex circular grooves 13 further increases the connection area between the silicone ring 20 and the upper and lower recessed grooves 12 of the metal sheet 10, further enhancing the stability and reliability of the connection between the silicone ring 20 and the metal sheet 10.

[0049] The rest of this embodiment is the same as that in Embodiment 1. Features not explained in this embodiment are explained using the methods in Embodiment 1, and will not be repeated here.

[0050] Example 3.

[0051] In this embodiment, as Figures 10-12 As shown, the silicone ring 20 includes an integrally formed base plate portion 22 and an overhang portion 21. The overhang portion 21 is located on the base plate portion 22 and extends towards the center of the silicone ring 20. A bent step 14 is formed on the surface of the metal sheet 10. The base plate portion 22 has a step surface 25 whose shape is adapted to the bent step 14 and is connected to the bent step 14 through the step surface 25. In this way, the silicone ring 20 can be adapted to connect to the metal sheet 10 with the stepped structure. By setting the silicone ring 20 at the bent step 14 of the metal sheet 10, the product performance can still be effectively improved.

[0052] The rest of this embodiment is the same as that in Embodiment 1. Features not explained in this embodiment are explained using the methods in Embodiment 1, and will not be repeated here.

[0053] Example 4.

[0054] like Figures 13-15 As shown, the difference between this embodiment and Embodiment 3 above is that the silicone ring 20 further includes a flat plate portion 26, which extends from one side of the base plate portion 22 and is connected to the surface of the metal sheet 10. In this embodiment, the connection between the flat plate portion 26 and the metal sheet 10 is further configured to allow the entire silicone ring 20 to be stably connected to the metal sheet 10.

[0055] The rest of this embodiment is the same as that in Embodiment 3. Features not explained in this embodiment are explained using the methods in Embodiment 3, and will not be repeated here.

[0056] Example 5.

[0057] This embodiment provides a speaker module, which includes the front cover for a speaker as described in any of the embodiments one to four above.

[0058] This speaker module, applicable to mobile terminals, features the front cover described in the previous embodiment, resulting in superior acoustic performance, better sound transmission, minimal obstruction to sound propagation, clear and natural sound transmission, high fidelity in audio output, and stable performance across different frequencies. It also possesses excellent damping characteristics, allowing for appropriate damping adjustment to reduce sound reflection and scattering, lower distortion, and improve sound quality. Furthermore, it offers excellent protection, effectively preventing water and dust from entering the speaker module, protecting acoustic components such as the speaker and microphone, and extending its lifespan. Additionally, it exhibits enhanced impact resistance, withstanding certain external impacts and providing robust protection for internal speaker module components, reducing damage caused by external collisions.

[0059] Example 6.

[0060] This embodiment provides a mobile terminal, which includes the speaker module described in Embodiment 5 above.

[0061] Specifically, because the mobile terminal in this embodiment has the speaker module of Embodiment 5 described above, the speaker module has excellent acoustic performance, good damping characteristics, outstanding protective performance, and stronger impact resistance. The speaker module configuration makes the mobile terminal in this embodiment have better quality.

[0062] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A front cover for a speaker, comprising a metal sheet having through holes, characterized in that: The surface of the metal sheet is provided with a silicone ring surrounding the periphery of the through hole; the silicone ring includes an integrally formed insertion part and an extension part, the extension part is located on the insertion part and extends towards the center of the silicone ring, the surface of the metal sheet is provided with a recessed groove, and the insertion part is inserted into and connected to the recessed groove.

2. The front cover for a speaker according to claim 1, characterized in that: The silicone ring is formed and attached to the surface of the metal sheet by injection molding.

3. The front cover for a speaker according to claim 1, characterized in that: An adhesive layer is provided on the surface of the metal sheet, and the silicone ring is bonded to the metal sheet through the adhesive layer.

4. The front cover for a speaker according to claim 1, characterized in that: The silicone ring includes an integrally formed base plate and an overhanging portion. The overhanging portion is located on the base plate and extends toward the center of the silicone ring. The base plate is connected to the surface of the metal sheet.

5. The front cover for a speaker according to claim 1, characterized in that, The silicone ring also includes a plurality of convex round portions spaced apart on the plug portion. The recessed groove and the corresponding positions of each of the convex round portions form convex round grooves, and each of the convex round portions is adapted to and connected to each of the convex round grooves.

6. The front cover for a speaker according to claim 1, characterized in that, The silicone ring includes an integrally formed base plate and an overhanging portion. The overhanging portion is located on the base plate and extends toward the center of the silicone ring. The surface of the metal sheet is formed with a bent step. The base plate has a step surface with a shape adapted to the bent step and is connected to the bent step through the step surface.

7. The front cover for a speaker according to claim 6, characterized in that, The silicone ring also includes a flat plate portion that extends from one side of the base plate portion and is connected to the surface of the metal sheet.

8. A speaker module, characterized in that: Includes the front cover for a loudspeaker as described in any one of claims 1 to 7.

9. A mobile terminal, characterized in that: Includes the speaker module as described in claim 8.

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