A breathable insulation mesh assembly and a speaker module

Abstract

This utility model discloses a breathable insulating mesh assembly and a speaker module. The breathable insulating mesh assembly includes an adhesive layer, a damping mesh fabric, and multiple grid blocks. The adhesive layer has ventilation holes, and the damping mesh fabric is connected to the adhesive layer. Multiple grid blocks are arranged in an array on the damping mesh fabric and located within the ventilation holes. The arrayed grid blocks form a hollow region in the center of the array, and the diameter of the hollow region is smaller than the diameter of the sound-absorbing particles. This breathable insulating mesh assembly, by setting an array of grid blocks on the side of the damping mesh fabric facing the sound-absorbing particles, creates a hollow region with a diameter smaller than the sound-absorbing particles within the ventilation holes of the adhesive layer. This intercepts the sound-absorbing particles at the grid blocks, while airflow can still freely pass through the lateral gaps between the grid blocks and the micropores of the mesh fabric. This ensures that the vent of the speaker module always maintains an effective ventilation cross-section, guaranteeing real-time pressure balance inside and outside the speaker module.

Description

Technical Field

[0001] This utility model relates to the field of electroacoustic converter technology, and in particular to a breathable isolation mesh assembly and a speaker module. Background Technology

[0002] With the development of smart devices such as smartphones, tablets, and smartwatches, consumers have increasingly higher performance requirements for the speaker modules installed in these devices. Many consumers are now pursuing better bass response. However, the space available for speaker modules within smartphones, tablets, and other smart devices is very limited. Therefore, the industry typically fills the module housing with sound-absorbing particles (also known as bass powder) to increase the virtual rear cavity and thus improve the low-frequency performance of the speaker module. However, these sound-absorbing particles bounce during speaker module operation. During this bounce, they may vibrate upwards and adhere to the mesh of the vent holes in the module housing, causing the vent holes to become blocked. This prevents the vent holes from balancing the air pressure inside and outside the module housing, affecting the speaker module's performance. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a breathable insulating mesh assembly that will not be blocked by sound-absorbing particles and leak air, and a speaker module having the breathable insulating mesh assembly.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a breathable insulation net assembly, comprising: An adhesive layer having vent holes; Damping mesh fabric, wherein the damping mesh fabric is connected to the adhesive layer; Multiple grid blocks are arranged in an array on the damping mesh and located in the vent holes. The multiple grid blocks arranged in the array form a hollow region in the middle of the array. The diameter of the hollow region is smaller than the diameter of the sound-absorbing particles.

[0005] Furthermore, the grid block is triangular, fan-shaped, or fan-ring-shaped.

[0006] Furthermore, the number of the grid blocks is arranged in a ring array, and the inner wall of the vent hole and the two adjacent grid blocks enclose each other to form an air flow channel.

[0007] Furthermore, the outer periphery of the hollow region is connected to the airflow channel.

[0008] Furthermore, the grid block and the damping mesh are integrally formed into a single structure.

[0009] Furthermore, the damping mesh and the adhesive layer are bonded together with hot melt adhesive.

[0010] Furthermore, the grid block has an adhesive groove on the side near the damping mesh.

[0011] Furthermore, the thickness of the grid block is less than or equal to the thickness of the adhesive layer, and it also includes a release film, which is attached to the side of the adhesive layer away from the damping mesh.

[0012] To solve the above-mentioned technical problems, the present invention also adopts the following technical solution: a speaker module, including the above-mentioned breathable isolation mesh assembly.

[0013] Furthermore, it also includes a module housing and speaker units and sound-absorbing particles respectively disposed in the module housing. The module housing is provided with vent holes, and the breathable isolation mesh assembly is bonded to the outer surface of the module housing by the adhesive layer. The hollow area corresponds to the center of the vent holes.

[0014] The beneficial effects of this utility model are as follows: This breathable isolation mesh assembly sets up an array of grid blocks on the side of the damping mesh facing the sound-absorbing particles, so that the grid blocks enclose a hollow area with a diameter smaller than the sound-absorbing particles within the air vents of the adhesive layer, thereby intercepting the sound-absorbing particles at the grid blocks and preventing them from directly covering or adhering to the mesh surface; since the hollow area only restricts the sound-absorbing particles from completely entering the air vents while maintaining a continuous air path, the airflow can still flow freely through the lateral gaps between the grid blocks and the micropores of the mesh, so that the vent of the speaker module always maintains an effective ventilation cross section, ensuring that the air pressure inside and outside the speaker module is balanced in real time, preventing the increase of back pressure of the speaker unit and the decrease of low-frequency performance caused by the blockage of the vent, and thus ensuring the acoustic consistency and reliability of the speaker module under long-term vibration environment. Attached Figure Description

[0015] Figure 1 This is a structural schematic diagram of a breathable insulation mesh component; Figure 2 An exploded view of the breathable insulation mesh component; Figure 3 This is a cross-sectional view of a breathable insulation mesh assembly; Figure 4 This is a schematic diagram of the speaker module. Figure 5 This is a schematic diagram of the internal structure of the speaker module; Figure 6 for Figure 5 A magnified view of detail A.

[0016] Label Explanation: 1. Adhesive layer; 11. Vent holes; 2. Damping mesh fabric; 3. Grid block; 4. Hollow area; 5. Airflow channel; 6. Module housing; 61. Vent hole; 7. Speaker unit; 8. Sound-absorbing particles. Detailed Implementation

[0017] To explain in detail the technical content, objectives, and effects of this utility model, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0018] Please refer to Figures 1 to 3 A breathable insulation mesh assembly, comprising: Adhesive layer 1, wherein the adhesive layer 1 has vent holes 11; Damping mesh fabric 2, which is connected to the adhesive layer 1; Multiple grid blocks 3 are arranged in an array on the damping mesh 2 and located in the vent hole 11. The multiple grid blocks 3 arranged in an array form a hollow region 4 in the middle of the array. The diameter of the hollow region 4 is smaller than the diameter of the sound-absorbing particles 8.

[0019] As can be seen from the above description, the beneficial effects of this utility model are as follows: This breathable isolation mesh assembly sets an array of grid blocks 3 on the side of the damping mesh 2 facing the sound-absorbing particles 8, so that the grid blocks 3 enclose a hollow area 4 with a diameter smaller than the sound-absorbing particles 8 within the ventilation holes 11 of the adhesive layer 1, thereby intercepting the sound-absorbing particles 8 at the grid blocks 3 and preventing them from directly covering or adhering to the surface of the mesh. Since the hollow area 4 only restricts the sound-absorbing particles 8 from completely entering the ventilation holes 11 while maintaining a continuous air path, the airflow can still flow freely through the lateral gaps between the grid blocks 3 and the micropores of the mesh, so that the vent hole 61 of the speaker module always maintains an effective ventilation section, ensuring that the air pressure inside and outside the speaker module is balanced in real time, preventing the back pressure of the speaker unit 7 from increasing and the low-frequency performance from decreasing due to the blockage of the vent hole 61, thereby ensuring the acoustic consistency and reliability of the speaker module under long-term vibration environment.

[0020] Furthermore, the grid block 3 is triangular, fan-shaped, or fan-shaped.

[0021] As can be seen from the above description, the grid block 3 has a simple shape and is easy to process and form.

[0022] Furthermore, the number of the grid blocks 3 is arranged in a ring array, and the inner wall of the vent 11 and the two adjacent grid blocks 3 enclose each other to form an air flow channel 5.

[0023] As can be seen from the above description, the use of a ring array arrangement allows the inner wall of the vent 11 to naturally enclose the adjacent grid block 3 to form an airflow channel 5, preventing acoustic asymmetry caused by local blockage.

[0024] Furthermore, the outer periphery of the hollow region 4 is connected to the airflow channel 5.

[0025] As described above, the outer periphery of the hollow region 4 is directly connected to the air flow channel 5. Even if sound-absorbing particles 8 accumulate in the hollow region 4, the airflow can still bypass the sound-absorbing particles 8 and be discharged through the hollow region 4, forming a dual air leakage path and further improving the anti-blocking redundancy.

[0026] Furthermore, the grid block 3 and the damping mesh 2 are integrally formed into a single structure.

[0027] As can be seen from the above description, the grid block 3 and the damping mesh 2 are integrally processed and formed, eliminating the tolerance of separate assembly, simplifying the component assembly process, and improving production consistency.

[0028] Furthermore, the damping mesh 2 and the adhesive layer 1 are bonded together with hot melt adhesive.

[0029] As can be seen from the above description, using hot melt adhesive to bond the damping mesh 2 and the adhesive layer 1 results in fast curing speed and controllable adhesive overflow.

[0030] Furthermore, the grid block 3 is provided with an adhesive groove on the side near the damping mesh 2.

[0031] As described above, the grid block 3 is provided with an adhesive reservoir, in which hot melt adhesive is contained to prevent excessive blockage of the micropores of the damping mesh 2 by the hot melt adhesive, thereby reducing the effective ventilation area and ensuring stable acoustic performance.

[0032] Furthermore, the thickness of the grid block 3 is less than or equal to the thickness of the adhesive layer 1, and it also includes a release film, which is attached to the side of the adhesive layer 1 away from the damping mesh 2.

[0033] As described above, the thickness of the grid block 3 does not exceed the thickness of the adhesive layer 1, making the outer surface of the breathable isolation mesh assembly flat and facilitating automated mounting; the release film protects the adhesive layer 1 before mounting to avoid foreign matter contamination and improve the production line yield.

[0034] Please refer to Figures 4 to 6 In order to solve the above-mentioned technical problems, the present invention also adopts the following technical solution: a loudspeaker module, including the above-mentioned breathable isolation mesh assembly.

[0035] As can be seen from the above description, after the speaker module adopts the above-mentioned breathable isolation mesh component, the sound-absorbing particles 8 cannot block the vent hole 61 during vibration, the air pressure in the rear cavity of the speaker module is always balanced, the diaphragm compliance of the speaker unit 7 remains stable, and the low-frequency gain and distortion index of the whole machine can be maintained for a long time.

[0036] Furthermore, it also includes a module housing 6 and speaker units 7 and sound-absorbing particles 8 respectively disposed in the module housing 6. The module housing 6 is provided with a vent hole 61. The breathable isolation mesh assembly is bonded to the outer surface of the module housing 6 by the adhesive layer 1. The hollow area 4 corresponds to the center of the vent hole 61.

[0037] As described above, the breathable isolation mesh component is directly pasted onto the outer surface of the module shell 6 and the hollow area 4 is aligned with the center of the vent hole 61. The installation process only requires one positioning and bonding, which saves internal space and meets the requirements of automated assembly, while ensuring the shortest venting path and the lowest acoustic loss.

[0038] Embodiment 1 of this utility model is as follows: Please refer to Figures 1 to 3 A breathable insulating mesh assembly includes an adhesive layer 1, a damping mesh 2, and multiple grid blocks 3. The adhesive layer 1 has ventilation holes 11. The damping mesh 2 is connected to the adhesive layer 1. The multiple grid blocks 3 are arranged in an array on the damping mesh 2 and located in the ventilation holes 11. The multiple grid blocks 3 arranged in an array form a hollow region 4 in the middle of the array. The diameter of the hollow region 4 is smaller than the diameter of the sound-absorbing particles 8.

[0039] Optionally, the grid block 3 is triangular, fan-shaped, or fan-shaped.

[0040] In one or more embodiments, a plurality of the grid blocks 3 are arranged in a circular array, and the inner wall of the vent 11 and two adjacent grid blocks 3 enclose an airflow channel 5. Optionally, the outer periphery of the hollow region 4 is connected to the airflow channel 5. In this embodiment, the number of grid blocks 3 is three.

[0041] In some embodiments, the grid block 3 and the damping mesh 2 are integrally formed. In other embodiments, the damping mesh 2 and the adhesive layer 1 are bonded together with hot melt adhesive. In this case, optionally, the grid block 3 has an adhesive groove on the side near the damping mesh 2.

[0042] The thickness of the grid block 3 is less than or equal to the thickness of the adhesive layer 1. The breathable isolation mesh assembly also includes a release film, which is attached to the side of the adhesive layer 1 away from the damping mesh 2.

[0043] Please refer to Figures 4 to 6 Furthermore, a speaker module is provided, which includes the above-mentioned breathable insulation mesh assembly, module housing 6, and speaker units 7 and sound-absorbing particles 8 respectively disposed in the module housing 6. The module housing 6 is provided with vent holes 61. The breathable insulation mesh assembly is bonded to the outer surface of the module housing 6 by the adhesive layer 1. The hollow region 4 corresponds to the center of the vent holes 61.

[0044] When assembling the speaker module, the release film can be removed to use the adhesive layer 1 to bond and fix the breathable isolation mesh component to the module housing 6.

[0045] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A breathable insulation mesh assembly, characterized in that, include An adhesive layer having vent holes; Damping mesh fabric, wherein the damping mesh fabric is connected to the adhesive layer; Multiple grid blocks are arranged in an array on the damping mesh and located in the vent holes. The multiple grid blocks arranged in the array form a hollow region in the middle of the array. The diameter of the hollow region is smaller than the diameter of the sound-absorbing particles.

2. The breathable insulation mesh assembly according to claim 1, characterized in that, The grid blocks are triangular, fan-shaped, or fan-shaped.

3. The breathable insulation mesh assembly according to claim 1, characterized in that, The number of the grid blocks is arranged in a ring array, and the inner wall of the vent hole and the two adjacent grid blocks enclose each other to form an air flow channel.

4. The breathable insulation mesh assembly according to claim 3, characterized in that, The outer periphery of the hollow region is connected to the airflow channel.

5. The breathable insulation mesh assembly according to claim 1, characterized in that, The grid block and the damping mesh are integrally formed into a single structure.

6. The breathable insulation mesh assembly according to claim 1, characterized in that, The damping mesh and the adhesive layer are bonded together with hot melt adhesive.

7. The breathable insulation mesh assembly according to claim 6, characterized in that, The grid block has an adhesive groove on the side near the damping mesh.

8. The breathable insulation mesh assembly according to claim 1, characterized in that, The thickness of the grid block is less than or equal to the thickness of the adhesive layer, and it also includes a release film, which is attached to the side of the adhesive layer away from the damping mesh.

9. A speaker module, characterized in that, Includes the breathable insulation mesh assembly as described in any one of claims 1-8.

10. The speaker module according to claim 9, characterized in that, It also includes a module housing and speaker units and sound-absorbing particles respectively disposed in the module housing. The module housing is provided with vent holes. The breathable isolation mesh assembly is bonded to the outer surface of the module housing by the adhesive layer. The hollow area corresponds to the center of the vent holes.

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