Microphone airtight structure, camera module and electronic product
By changing the connection method between the rubber parts and the casing in the laptop microphone structure, the problem of poor air tightness caused by space constraints is solved, a more stable connection and higher air tightness are achieved, and the risk of increased costs is avoided. .
Patent Information
- Application Number
- CN202420694221.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-07
- Publication Date
- 2025-01-14
- Estimated Expiration
- 2034-04-07
AI Technical Summary
In the compact design of existing laptop microphones, the rubber-based contact area is prone to be too small due to space limitations, resulting in poor airtightness and affecting the acoustic sound performance.
By changing the connection relationship between the rubber part, the microphone assembly and the casing, the rubber part is connected to the casing to form a sound collection channel, increase the connection area between the rubber part and the casing, and improve the sealing effect.
It achieves a more stable connection of rubber parts, reduces sound leakage problems caused by assembly differences, and further improves the air-tightening effect when the volume is the same or smaller, avoiding the risk of increasing costs and affecting other structures.
Smart Images
Figure CN222356520U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of microphone airtightness, and in particular to an airtight structure of a microphone, a camera module and an electronic product. Background Art
[0002] In the airtight design of the notebook computer microphone structure, the microphone structure is completely covered by a rubber structure, the bottom adhesive of the rubber structure is bonded to the substrate of the camera module, and the top of the rubber structure is a hollow cylinder that is attached to the screen or shell to achieve the purpose of airtightness.
[0003] However, in existing laptops, the screen-to-body ratio is getting higher and higher, and the screen is accelerating towards a narrow frame direction, leaving less and less space for the camera module (including the microphone), and the width of the camera module substrate and the thickness of the rubber are also gradually decreasing. In this case, the space left for the rubber on both sides of the microphone structure is getting smaller and smaller, resulting in too small a contact area between the rubber and the substrate, which is prone to rubber deformation and poor adhesion, resulting in poor airtightness, which in turn affects the acoustic sound reception performance of the laptop.
[0004] The commonly used solutions to the above problems are: using high compression ratio materials such as foam to replace rubber, or using bottom-opening microphones and adopting a rubber-free design. However, in the above methods, the cost of high compression ratio materials is high, and they are easy to break and deform, and the cost of repair and repeated verification is high; while the cost of bottom-opening microphones is high, the microphone must be independent of the camera module, and the microphone path is long, which affects the overall sound reception performance. Utility Model Content
[0005] In order to solve at least the above technical problems existing in the prior art, the utility model provides a microphone airtight structure, a camera module and an electronic product.
[0006] On the one hand, the utility model provides an airtight structure of a microphone, comprising a microphone assembly, a rubber member and a shell; the microphone assembly comprises a main board and a sound receiving element arranged on the main board, the sound receiving element comprises a sound receiving port; the rubber member comprises a rubber body and a hollow column, the rubber body is provided with a through hole, the hollow column is connected to a first side of the rubber body, and the hollow part of the hollow column and the through hole form a sound receiving channel; the shell comprises an opening, the second side of the rubber body is connected to the shell, and one end of the sound receiving channel is connected to the opening, and the other end is connected to the sound receiving port.
[0007] In some embodiments, the shell further includes a limiting structure; the limiting structure protrudes from the surface of the shell, and the side edge of the rubber body abuts against the limiting structure.
[0008] In some embodiments, the limiting structure is an annular raised structure, and the contour shape of the raised structure is the same as the shape of the rubber body; when the second side of the rubber body is connected to the shell, the rubber body is arranged in the annular structure surrounded by the raised structure, and the edge of the rubber body abuts against the raised structure.
[0009] In some embodiments, the rubber body is a flat plate structure, the second side of the flat plate structure is attached to and connected to the shell, and / or the second side of the flat plate structure is adhesively connected to the shell.
[0010] In some embodiments, a fool-proof structure is provided on the rubber body and / or the shell, and the connection position of the rubber body and the shell is determined by the fool-proof structure.
[0011] In some embodiments, the foolproof structure includes a chamfer located on the rubber body, and the annular structure surrounded by the protruding structures includes a shape that is the same as the chamfer profile.
[0012] In some embodiments, the area of the flat plate structure is larger than the area of the sound receiving element, and the vertical projection of the flat plate structure onto the sound receiving element covers the sound receiving element; the inner diameter of the hollow part of the hollow column is not less than the inner diameter of the sound receiving port.
[0013] On the other hand, the utility model further provides a camera module, comprising the above-mentioned microphone airtight structure.
[0014] In yet another aspect, the present invention further provides an electronic product, comprising the microphone airtight structure or the camera module.
[0015] The utility model provides a microphone airtight structure, a camera module and an electronic product, in which a rubber part is connected to a shell, and the connection between the rubber part and the shell is less affected by the area occupied by the microphone component, which is conducive to a more secure connection of the rubber part, and can avoid / reduce the sound leakage problem caused by assembly differences. In addition, the airtight structure does not increase the volume of the airtight structure, that is, when the volume is the same or smaller, the airtight effect can be further improved without increasing the cost or affecting other structures. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] By reading the detailed description below with reference to the accompanying drawings, the above and other objects, features and advantages of the exemplary embodiments of the present invention will become readily understood. In the accompanying drawings, several embodiments of the present invention are shown in an exemplary and non-limiting manner, wherein:
[0017] In the drawings, the same or corresponding reference numerals represent the same or corresponding parts.
[0018] Figure 1A schematic diagram of the structure of the microphone airtight structure provided by the embodiment of the utility model when used in a camera module;
[0019] Figure 2 for Figure 1 Schematic diagram of the local structure of the airtight structure of the middle microphone;
[0020] Figure 3 A cross-sectional view of the airtight structure of a microphone provided by an embodiment of the utility model;
[0021] Figure 4 A schematic diagram of the structure of a microphone assembly in a microphone airtight structure provided by an embodiment of the utility model;
[0022] Figure 5 A schematic diagram of the structure of a rubber member in the airtight structure of a microphone provided in an embodiment of the utility model;
[0023] Figure 6 This is a schematic structural diagram of the shell of the microphone airtight structure provided in an embodiment of the utility model.
[0024] In the figure:
[0025] 1: Camera module;
[0026] 10: microphone assembly; 20: rubber part; 30: housing;
[0027] 11: Mainboard; 12: Sound receiving component; 13: Sound receiving port;
[0028] 21: rubber body; 22: hollow column; 23: sound channel; 24: chamfer;
[0029] 31: opening; 32: limiting structure. DETAILED DESCRIPTION
[0030] In order to make the purpose, features and advantages of the utility model more obvious and easy to understand, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.
[0031] The embodiment of the utility model provides a microphone airtight structure, comprising a microphone assembly, a rubber member and a housing. The connection relationship between the rubber member, the microphone assembly and the housing is changed, and the rubber member is connected to the housing, thereby improving the sealing effect of the microphone assembly.
[0032] The following describes in detail the various structures of the microphone airtight structure provided by the embodiment of the utility model, as well as the positional relationship and connection relationship between the various structures in conjunction with the accompanying drawings.
[0033] like Figures 1 to 6 As shown, the microphone assembly 10 includes a main board 11 and a sound receiving element 12 disposed on the main board 11, and the sound receiving element 12 includes a sound receiving port 13; wherein, the structure of the main board 11 and the sound receiving element 12 in the microphone assembly 10 is the same as the existing structure. With the continuous increase in the screen ratio of electronic products, when designing the microphone assembly, it may be necessary to reduce the width of the main board or the thickness of the entire microphone airtight structure. In the embodiment of the utility model, for the airtight operation of the microphone assembly 10, the connection side of the rubber member 20 is changed from the side of the microphone assembly 10 to the side of the housing 30.
[0034] The rubber part 20 includes a rubber body 21 and a hollow column 22, the rubber body 21 is provided with a through hole, the hollow column 22 is connected to the first side of the rubber body 21, and the hollow part of the hollow column 22 and the through hole form a sound receiving channel 23; when the microphone airtight structure is formed, the rubber part 20 is arranged between the microphone assembly 10 and the shell 30, wherein the shell 30 includes an opening 31, the second side of the rubber body 21 is connected to the shell 30, and one end of the sound receiving channel 23 is connected to the opening 31, and the other end is connected to the sound receiving port 13.
[0035] At this point, a microphone airtight structure can be formed by the microphone assembly 10, the rubber part 20 and the shell 30. Compared with the existing airtight structure, the second side of the rubber part 20 is connected to the shell 30, and the connection side is no longer restricted by the structure of the microphone assembly 10, that is, a larger area of bonding can be achieved, thereby improving the stability of the connection of the rubber part 20.
[0036] For example, the rubber body 21 is a flat plate structure, the second side of the flat plate structure is attached to and connected to the housing 30, the entire second side of the flat plate structure is bonded to the housing 30, and no cavity structure is required on this surface, which can increase the connection area and improve the acoustic sound receiving performance. For example, the second side of the flat plate structure is bonded to the housing 30, and the large area of bonding can make the bonding effect more stable, thereby reducing the probability of debonding.
[0037] For example, the area of the flat plate structure is larger than the area of the sound receiving element 12, and the vertical projection of the flat plate structure to the sound receiving element 12 covers the sound receiving element 12. The area of the flat plate structure is larger than the area of the sound receiving element 12, but does not exceed the edge of the main board 11 connected to the sound receiving element 12. This design method can increase the area of the flat plate structure as much as possible, and further improve the stability of the connection between the rubber body 21 and the housing 30.
[0038] For example, the aperture of the hollow column 22 is greater than or equal to the inner diameter of the opening 31 and the sound receiving port 13, so that the hollow column 22 can be connected with the opening 31 and the sound receiving port 13 to avoid the connection failure caused by error.
[0039] Continue to refer Figures 1 to 6 As shown, in the embodiment of the utility model, the housing 30 further includes a limiting structure 32 ; the limiting structure 32 protrudes from the surface of the housing 30 , and the side edge of the rubber body 21 abuts against the limiting structure 32 .
[0040] The limiting structure 32 is used to limit the installation position of the rubber body 21 on the housing 30. The limiting structure 32 facilitates the quick connection between the rubber body 21 and the housing 30, which can reduce the impact of assembly quality and improve the consistency of product performance after assembly. When the rubber body 21 is connected to the housing 30, the rubber body 21 is connected to the limiting structure 32, which means that the rubber body 21 is in the correct installation position. This operation is simple and quick.
[0041] For example, the limiting structure 32 may be a protruding structure protruding from the surface of the shell 30. When the rubber body 21 is connected to the shell 30, the rubber body 21 is abutted against the protruding structure, which indicates that the position of the rubber body 21 is correct and the connection operation is completed.
[0042] For example, the limiting structure 32 is a ring-shaped raised structure, and the contour shape of the raised structure is the same as the shape of the rubber body 21; when the second side of the rubber body 21 is connected to the housing 30, the rubber body 21 is arranged in the ring structure surrounded by the raised structure, and the edge of the rubber body 21 abuts against the raised structure. For example, the limiting structure 32 can also be a semi-enclosed raised structure, or a raised structure in a structural form.
[0043] For example, a foolproof structure is provided on the rubber body 21 and the housing 30 to limit the installation direction between the rubber body 21 and the housing 30, so that the rubber body 21 and the housing 30 can be quickly and accurately connected. For example, the foolproof structure includes a chamfer 24 located on the rubber body 21, and the annular structure surrounded by the protruding structure includes a shape that is the same as the contour of the chamfer 24. Alternatively, for example, the foolproof structure can also be other foolproof forms.
[0044] For example, as shown in the figure, the shape of the rubber body 21 is a rectangular parallelepiped, and the shape of the annular structure surrounded by the corresponding protruding structure is also a rectangle. Chamfers 24 are provided at one or two corners of a wide side of the rubber body 21 and the annular structure. When the rubber body 21 is connected to the housing 30, the chamfers 24 are butted against each other to determine the correct installation position of the rubber body 21.
[0045] The embodiment of the utility model further provides a camera module 1, comprising the microphone airtight structure. And, the embodiment of the utility model further provides an electronic product, comprising the microphone airtight structure or the camera module 1.
[0046] For example, the electronic product is a laptop computer, and a camera module 1 is arranged on the top of the display end of the laptop computer, and the camera module 1 has the microphone airtight structure provided by the embodiment of the utility model. The electronic product uses the microphone airtight structure to achieve a more stable connection of the microphone, reduce / avoid the probability of the rubber part 20 coming apart, and ensure the sound reception effect.
[0047] The utility model provides a microphone airtight structure, a camera module 1 and an electronic product, wherein a rubber part 20 is connected to a shell 30, and the connection between the rubber part 20 and the shell 30 is less affected by the area occupied by the microphone assembly 10, which is conducive to a more secure connection of the rubber part 20, and can avoid / reduce the sound leakage problem caused by assembly differences. In addition, the airtight structure does not increase the volume of the airtight structure, that is, when the volume is the same or smaller, the airtight effect can be further improved without increasing costs or affecting other structures.
[0048] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples, unless they are contradictory.
[0049] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.
[0050] The above are only specific implementations of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.
Claims
1. A microphone airtight structure, characterized in that: It comprises a microphone assembly (10), a rubber member (20) and a housing (30); The microphone assembly (10) comprises a main board (11) and a sound receiving element (12) arranged on the main board (11), and the sound receiving element (12) comprises a sound receiving port (13); The rubber member (20) comprises a rubber body (21) and a hollow column (22), the rubber body (21) being provided with a through hole, the hollow column (22) being connected to a first side of the rubber body (21), and the hollow portion of the hollow column (22) and the through hole forming a sound receiving channel (23); The shell (30) comprises an opening (31), the second side of the rubber body (21) is connected to the shell (30), and one end of the sound receiving channel (23) is connected to the opening (31), and the other end is connected to the sound receiving port (13).
2. The microphone airtight structure according to claim 1, characterized in that: The housing (30) also includes a limiting structure (32); The limiting structure (32) protrudes from the surface of the shell (30), and the side edge of the rubber body (21) abuts against the limiting structure (32).
3. The microphone airtight structure according to claim 2, characterized in that: The limiting structure (32) is a ring-shaped protruding structure, and the contour shape of the protruding structure is the same as the shape of the rubber body (21); When the second side of the rubber body (21) is connected to the housing (30), the rubber body (21) is arranged in the annular structure surrounded by the raised structure, and the edge of the rubber body (21) abuts against the raised structure.
4. The microphone airtight structure according to claim 3, characterized in that: The rubber body (21) is a flat plate structure, the second side of the flat plate structure is adhered to and connected to the shell (30), and / or the second side of the flat plate structure is adhesively connected to the shell (30).
5. The microphone airtight structure according to claim 4, characterized in that: The rubber body (21) and / or the shell (30) are provided with a foolproof structure, and the connection position of the rubber body (21) and the shell (30) is determined by the foolproof structure.
6. The microphone airtight structure according to claim 5, characterized in that: The foolproof structure comprises a chamfer (24) located on the rubber body, and the annular structure surrounded by the convex structure comprises a shape having the same profile as the chamfer (24).
7. The microphone airtight structure according to claim 4, characterized in that: The area of the flat plate structure is larger than the area of the sound receiving element (12), and a vertical projection of the flat plate structure onto the sound receiving element (12) covers the sound receiving element (12); The inner diameter of the hollow part of the hollow column (22) is not less than the inner diameter of the sound receiving port (13).
8. A camera module, characterized in that: The microphone airtight structure comprises the microphone airtight structure as claimed in any one of claims 1 to 7.
9. An electronic product, characterized in that: It comprises the microphone airtight structure as claimed in any one of claims 1 to 7 or the camera module (1) as claimed in claim 8.