Deflator diaphragm assembly and speaker module

Abstract

This utility model discloses a venting diaphragm assembly and a speaker module. The venting diaphragm assembly includes a first adhesive layer and a venting layer. The first adhesive layer has vent holes. The venting layer is bonded to the first adhesive layer. A venting channel is provided on the side of the venting layer near the first adhesive layer. The venting channel has a first air inlet and a second air inlet. The first air inlet connects to the vent holes, and the second air inlet connects to the outside atmosphere. This venting diaphragm assembly has a built-in venting channel; only straight vent holes are needed on the module shell. When it is necessary to change the shape and size of the venting channel, only the venting channel in the venting layer needs to be modified, without modifying the mold used to manufacture the module shell. This effectively reduces product development costs and time, achieving the goal of quickly and cost-effectively changing the venting volume of the speaker module. It allows researchers to verify the venting track and venting volume of various schemes without changing the module shell, increasing the freedom of scheme verification and reducing the cost of scheme verification.

Description

Technical Field

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

[0002] To ensure the venting capacity of the speaker module's rear cavity meets design requirements, a common industry practice is to incorporate venting channels on the surface of the module's housing. The size and shape of these channels are designed to adjust the venting volume to the desired level, thereby achieving the required acoustic impedance. In the finished speaker module, a cover plate (such as a PI sheet) is installed on the housing to enclose most of the venting channel. This ensures that the venting channel's inlet connects to the rear cavity of the module housing, while its outlet connects to the outside atmosphere.

[0003] During product iteration and development, it is sometimes necessary to actually verify the venting channel. If you want to change the venting volume of the current speaker module, you must modify the manufacturing mold of the module shell, or design and produce a new manufacturing mold for manufacturing the new module shell, which leads to excessive product development costs and excessive time consumption. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a venting diaphragm assembly that can quickly change the venting volume of a speaker module at low cost, and a speaker module having the venting diaphragm assembly.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a venting diaphragm assembly, comprising: A first adhesive layer, wherein the first adhesive layer is provided with air pores; An air-venting layer is attached to a first adhesive layer. An air-venting channel is provided on the side of the air-venting layer near the first adhesive layer. The air-venting channel has a first air inlet and a second air inlet. The first air inlet is connected to the vent hole, and the second air inlet is connected to the outside atmosphere.

[0006] Furthermore, the venting layer includes a channel layer, a second adhesive layer, and a covering layer that are stacked sequentially. The venting channel is disposed on the channel layer. The side of the channel layer away from the second adhesive layer is attached to the first adhesive layer. The second air vent is located on the peripheral wall of the channel layer.

[0007] Furthermore, the channel layer and the cover layer may be made of the same or different materials.

[0008] Furthermore, the vent is located in the middle region of the first adhesive layer.

[0009] Furthermore, the number of the first air ports is one or more.

[0010] Furthermore, the number of the second air ports is one or more.

[0011] Furthermore, the number of the venting channels is one or more.

[0012] Furthermore, the venting channel has at least one curved section.

[0013] Furthermore, the venting channel includes at least one straight segment.

[0014] To solve the above-mentioned technical problems, the present invention also adopts the following technical solution: a speaker module, including a module housing with a vent hole and the above-mentioned vent diaphragm assembly, wherein the vent diaphragm assembly is bonded to the module housing by a first adhesive layer, and the vent hole is correspondingly connected to the vent hole.

[0015] The beneficial effects of this utility model are as follows: This venting diaphragm assembly has a built-in venting channel, and only a straight venting hole connecting the rear cavity needs to be set on the module shell of the speaker module. When it is necessary to change the shape and size of the venting channel, only the venting channel in the venting layer needs to be modified, without modifying the mold used to manufacture the module shell. This effectively reduces product development costs and development time, and achieves the goal of changing the venting volume of the speaker module at low cost. It allows R&D personnel to verify the venting track and venting volume of various schemes without changing the module shell, thereby improving the freedom of scheme verification and reducing the cost of scheme verification. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the venting diaphragm assembly; Figure 2 This is a schematic diagram of the venting diaphragm assembly from another perspective; Figure 3 Perspective view of the venting diaphragm assembly; Figure 4 Exploded view of the venting diaphragm assembly; Figure 5 This is a front view of the channel layer in the venting diaphragm assembly.

[0017] Label Explanation: 1. First adhesive layer; 11. Ventilation holes; 2. Venting layer; 21. Channel layer; 22. Second adhesive layer; 23. Covering layer; 3. Venting channel; 31. First air inlet; 32. Second air inlet; 33. Curved section; 34. Straight section. Detailed Implementation

[0018] 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.

[0019] Please refer to Figures 1 to 3 A venting diaphragm assembly, comprising: First adhesive layer 1, with vent holes 11 provided on the first adhesive layer 1; The air venting layer 2 is attached to the first adhesive layer 1. The air venting layer 2 is provided with an air venting channel 3 on the side near the first adhesive layer 1. The air venting channel 3 has a first air inlet 31 and a second air inlet 32. The first air inlet 31 is connected to the vent hole 11, and the second air inlet 32 ​​is connected to the outside atmosphere.

[0020] As can be seen from the above description, the beneficial effects of this utility model are as follows: This venting diaphragm assembly has a built-in venting channel 3, and only a straight venting hole connecting the rear cavity needs to be set on the module shell of the speaker module. When it is necessary to change the shape and size of the venting channel 3, it is only necessary to modify the venting channel 3 in the venting layer 2, without modifying the mold used to manufacture the module shell. This effectively reduces product development costs and development time, and achieves the goal of changing the venting volume of the speaker module at low cost. This allows R&D personnel to verify the venting track and venting volume of various schemes without changing the module shell, thereby improving the freedom of scheme verification and reducing the cost of scheme verification.

[0021] like Figure 3 and Figure 4 As shown, the venting layer 2 further includes a channel layer 21, a second adhesive layer 22 and a covering layer 23 that are stacked and connected in sequence. The venting channel 3 is disposed on the channel layer 21. The side of the channel layer 21 away from the second adhesive layer 22 is attached to the first adhesive layer 1. The second air vent 32 is located on the peripheral wall of the channel layer 21.

[0022] As can be seen from the above description, the venting layer 2 adopts a three-layer stacked structure, which facilitates the high-precision machining and forming of the venting channel 3.

[0023] Furthermore, the channel layer 21 and the cover layer 23 may be made of the same or different materials.

[0024] As can be seen from the above description, the channel layer 21 and the cover layer 23 have a high degree of freedom in material selection, which can enrich the diversity of the venting diaphragm assembly.

[0025] Furthermore, the vent 11 is located in the middle region of the first adhesive layer 1.

[0026] As can be seen from the above description, the vent 11 is located in the middle area of ​​the first adhesive layer 1, which facilitates the positioning and installation of the venting diaphragm assembly and the module housing.

[0027] Furthermore, the number of the first air inlets 31 is one or more.

[0028] Furthermore, the number of the second air inlets 32 is one or more.

[0029] Furthermore, the number of the venting channels 3 is one or more.

[0030] As can be seen from the above description, the specific number of the first air port 31, the specific number of the second air port 32, and the specific number of the venting channel 3 can all be set according to actual needs. Different numbers of the first air port 31 / second air port 32 / venting channel 3 will affect the venting volume of the venting diaphragm assembly.

[0031] like Figure 4 and Figure 5 As shown, the venting channel 3 further has at least one curved section 33.

[0032] As described above, the bending section 33 can reduce the smoothness of venting in the venting channel 3, which has a significant impact on the amount of venting in the venting channel 3 and thus a significant impact on the acoustic impedance of the rear cavity of the speaker module. At the same time, the bending section 33 can more effectively prevent external dust and debris from entering the rear cavity of the speaker module through the venting channel 3, which is conducive to ensuring the stability of the speaker module's operation.

[0033] Furthermore, the venting channel 3 includes at least one straight segment 34.

[0034] As can be seen from the above description, in actual products, the second air port 32 of the venting channel 3 can be set at the end of the straight section 34. The existence of the straight section 34 makes it convenient to design the diameter of the second air port 32.

[0035] The speaker module includes a module housing with a vent hole and the aforementioned vent diaphragm assembly. The vent diaphragm assembly is bonded to the module housing by a first adhesive layer 1, and the vent hole 11 is correspondingly connected to the vent hole.

[0036] Embodiment 1 of this utility model is as follows: Please refer to Figures 1 to 3 The venting membrane assembly includes a first adhesive layer 1 and a venting layer 2. The first adhesive layer 1 has a vent hole 11. The venting layer 2 is in contact with the first adhesive layer 1. The venting layer 2 has a venting channel 3 on the side near the first adhesive layer. The venting channel 3 has a first air port 31 and a second air port 32. The first air port 31 is connected to the vent hole 11, and the second air port 32 is connected to the outside atmosphere.

[0037] In this embodiment, the venting diaphragm assembly is generally circular. In other embodiments, the venting diaphragm assembly may also be polygonal, elliptical, or other shapes.

[0038] Please combine Figures 3 to 5The venting layer 2 comprises a channel layer 21, a second adhesive layer 22, and a covering layer 23 stacked sequentially. The venting channel 3 is disposed on the channel layer 21. The side of the channel layer 21 away from the second adhesive layer 22 is bonded to the first adhesive layer 1, so that the venting channel 3 can only connect to the side of the first adhesive layer 1 away from the channel layer 21 through the vent hole 11. The second vent 32 is located on the peripheral wall of the channel layer 21. Compared to a single-layer venting layer 2, the venting channel 3 in the three-layer stacked venting layer 2 is easier to process and form, and the manufacturing precision of the venting channel 3 is easier to control.

[0039] In one or more embodiments, the channel layer 21 and the cover layer 23 are made of different materials. In this embodiment, the channel layer 21 and the cover layer 23 are made of the same material. Optionally, the cover layer 23 can be made of PI (polyimide), PEEK (polyether ether ketone), PPS (polyphenylene sulfide), PEI (polyetherimide), etc. Similarly, the cover layer 23 can also be made of PI (polyimide), PEEK (polyether ether ketone), PPS (polyphenylene sulfide), PEI (polyetherimide), etc.

[0040] The number of the first air vents 31 is one or more. When the number of the first air vents 31 is one, in some embodiments, the vent 11 is offset from the center of the first adhesive layer 1; while in some embodiments, the vent 11 is located in the middle region of the first adhesive layer 1; in this embodiment, the vent 11 is located at the center of the first adhesive layer 1.

[0041] The number of the second air inlet 32 ​​can be one or more, and in this embodiment, the number of the second air inlet 32 ​​is two.

[0042] In actual products, the number of the venting channels 3 is one or more. When the number of venting channels 3 is multiple, at least two of the venting channels 3 are isolated from each other; or, at least two of the venting channels 3 share a first air inlet 31; or, at least two of the venting channels 3 share a second air inlet 32.

[0043] like Figure 4 and Figure 5 As shown, in order to better adjust the venting volume of the venting channel 3, it is preferable that the venting channel 3 has at least one curved section 33.

[0044] To make the design of the diameter of the second air port 32 more convenient, the venting channel 3 may optionally include at least one straight segment 34, and at least one end of the straight segment 34 is provided with the first air port 31 or the second air port 32.

[0045] This embodiment also provides a speaker module, which includes the above-mentioned venting diaphragm assembly, a module housing, and a speaker unit disposed within the module housing. The module housing has a vent hole, and the venting diaphragm assembly is bonded to the module housing by a first adhesive layer 1. The vent hole 11 is correspondingly connected to the vent hole.

[0046] 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 venting diaphragm assembly, characterized in that, include A first adhesive layer, wherein the first adhesive layer is provided with air pores; An air-venting layer is attached to a first adhesive layer. An air-venting channel is provided on the side of the air-venting layer near the first adhesive layer. The air-venting channel has a first air inlet and a second air inlet. The first air inlet is connected to the vent hole, and the second air inlet is connected to the outside atmosphere.

2. The venting diaphragm assembly according to claim 1, characterized in that, The venting layer includes a channel layer, a second adhesive layer, and a covering layer that are stacked sequentially. The venting channel is disposed on the channel layer. The side of the channel layer away from the second adhesive layer is attached to the first adhesive layer. The second air vent is located on the peripheral wall of the channel layer.

3. The venting diaphragm assembly according to claim 2, characterized in that, The channel layer and the cover layer may be made of the same or different materials.

4. The venting diaphragm assembly according to claim 1, characterized in that, The vent is located in the middle region of the first adhesive layer.

5. The venting diaphragm assembly according to claim 1, characterized in that, The number of the first air inlets is one or more.

6. The venting diaphragm assembly according to claim 1, characterized in that, The number of the second air inlets is one or more.

7. The venting diaphragm assembly according to claim 1, characterized in that, The number of venting channels is one or more.

8. The venting diaphragm assembly according to claim 1, characterized in that, The venting channel has at least one curved section.

9. The venting diaphragm assembly according to claim 8, characterized in that, The venting channel includes at least one straight segment.

10. A speaker module, characterized in that, The device includes a module housing with vent holes and a vent diaphragm assembly as described in any one of claims 1-9, wherein the vent diaphragm assembly is bonded to the module housing by a first adhesive layer, and the vent holes are correspondingly connected to the vent holes.

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