Loudspeaker module

Abstract

The utility model discloses a loudspeaker module, which comprises a module shell, a loudspeaker monomer, a first adhesive layer and a second adhesive layer, the module shell is provided with a mounting cavity and a front cavity which are communicated, the front cavity is positioned below the mounting cavity, a support ring frame is embedded in the module shell, the support ring frame is positioned at the boundary of the mounting cavity and the front cavity, and the loudspeaker monomer is arranged in the support ring frame. All areas of the inner edge of the supporting ring frame protrude out of the inner wall face of the mounting cavity to form a supporting table, and the top face of the supporting table forms a containing area in a ring frame shape. The loudspeaker single body is placed in the mounting cavity; the first adhesive layer is arranged in the placing area and is connected with the sound production surface of the loudspeaker single body; and the second adhesive layer is connected with the peripheral wall of the loudspeaker monomer and the wall surface of the mounting cavity. The loudspeaker module is novel in structure, the supporting ring frame embedded in the module shell is utilized to form the continuous and complete ring frame-shaped placing area, the loudspeaker module does not need to be turned over during gluing, the gluing step is simplified, the gluing efficiency and the gluing quality are improved, the tool cost is saved, and the waterproof performance of the loudspeaker module is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of electroacoustic transducers, and particularly relates to a speaker module. Background Art

[0002] With the continuous upgrading of electronic products, the performance requirements of electronic products are getting higher and higher. Electronic products have developed from life waterproof to IP68 level or even higher waterproof requirements.

[0003] The thickness of the speaker module is limited. Generally, the glue application between the diaphragm surface and the monomer placement surface can only be designed to be applied on three sides. Due to the structural thickness limitation at the sound outlet side, it is impossible to design a glue application method with four-sided coplanarity. Instead, three sides are glued first at the bottom (i.e., three sides of the monomer placement surface of the module housing are glued), and after flipping the tooling, another layer of glue is applied on the reverse side, and then it is flipped over again to apply glue between the periphery of the speaker monomer in the second circle and the wall surface of the placement groove of the module housing. This method of flipping back and forth will undoubtedly increase a lot of tooling and generate unnecessary working hours. At the same time, flipping back and forth before the glue is completely dry may also bring the risk that the glue bonding has slight cracks, affecting the seal. Summary of the Utility Model

[0004] The technical problem solved by the utility model is to provide a waterproof speaker module that is convenient for assembly.

[0005] To solve the above technical problem, the technical solution adopted by the utility model is: a speaker module, comprising:

[0006] A module housing, the module housing has a connected installation cavity and a front cavity, the front cavity is located below the installation cavity, a support ring frame is embedded in the module housing, the support ring frame is located at the boundary between the installation cavity and the front cavity, and each area of the inner edge of the support ring frame protrudes from the inner wall surface of the installation cavity to form a support platform, and the top surface of the support platform forms a placement area in the shape of a ring frame;

[0007] A speaker monomer, the speaker monomer is placed in the installation cavity;

[0008] A first glue layer, the first glue layer is arranged in the placement area and connects the sounding surface of the speaker monomer;

[0009] A second glue layer, the second glue layer connects the peripheral wall of the speaker monomer and the wall surface of the installation cavity.

[0010] In one embodiment, the first glue layer is in the shape of a continuous ring frame.

[0011] In one embodiment, the bottom of the second glue layer is connected to the outer edge of the first glue layer.

[0012] In one embodiment, a guiding surface is provided on the inner wall of one end of the installation cavity away from the front cavity.

[0013] In one embodiment, the guiding surface is an inclined surface or an arc surface.

[0014] In one embodiment, a glue-containing area is formed between the guiding surface and the peripheral wall of the speaker unit, and a partial area of the second glue layer is accommodated in the glue-containing area.

[0015] In one embodiment, the support ring frame has an embedded part embedded in the module housing.

[0016] In one embodiment, the material of the support ring frame is ferroalloy or aluminum alloy.

[0017] In one embodiment, the support ring frame and the module housing are an integrally formed structure by insert injection molding.

[0018] In one embodiment, the module housing has a sound outlet channel communicating with the front cavity, a partition wall is formed between the sound outlet channel and the installation cavity, and the bottom surface of the support ring frame is arranged lower than the bottom surface of the partition wall.

[0019] The beneficial effect of the present utility model is that: the structure of the present speaker module is novel. It uses the support ring frame embedded in the module housing to form a continuous and complete ring-shaped placement area. Therefore, when applying glue, only need to apply glue once in the placement area, and then place the speaker unit into the installation cavity and apply glue again, without flipping the speaker module, which greatly simplifies the glue application steps, is beneficial to improving the glue application efficiency and quality, saves the tooling cost and ensures the waterproof performance of the speaker module. Description of the Drawings

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on the structures shown in these drawings without creative efforts.

[0021] Figure 1 It is a schematic structural diagram of the speaker module according to Embodiment 1 of the present utility model;

[0022] Figure 2 It is a cross-sectional view of the speaker module according to Embodiment 1 of the present utility model;

[0023] Figure 3 It is for Figure 2 The enlarged view of A in

[0024] Explanation of the reference numerals in the drawings:

[0025] 1. Module housing; 11. Installation cavity; 12. Front cavity; 13. Guiding surface; 14. Sound output channel; 15. Sound output port; 16. Partition wall

[0026] 2. Loudspeaker unit

[0027] 3. First adhesive layer

[0028] 4. Second adhesive layer

[0029] 5. Support ring frame; 51. Placement area; 52. Embedded part Detailed implementation manners

[0030] The realization of the object, functional features and advantages of the present utility model will be further described with reference to the embodiments and the accompanying drawings

[0031] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model

[0032] It should be noted that if there are directional indications such as up, down, left, right, front, back... in the embodiments of the present utility model, the directional indications are only used to explain the relative position relationship and movement conditions between components in a specific posture as shown in the accompanying drawings. If the specific posture changes, the directional indications will also change accordingly

[0033] In addition, if there are descriptions such as "first" and "second" in the embodiments of the present utility model, the descriptions of "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature

[0034] In addition, the meaning of "and / or" appearing throughout the text is that it includes three parallel solutions. Taking "and / or" as an example, it includes the solution, or the solution, or the solution that satisfies both simultaneously. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model

[0035] In this application, unless otherwise clearly specified and defined, terms such as "installation", "connection", "linkage", "fixation", etc. shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral body; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0036] Embodiment 1

[0037] Please refer to Figures 1 to 3 , Embodiment 1 of the present utility model is: a speaker module, including a module housing 1, a speaker unit 2, a first glue layer 3 and a second glue layer 4. The module housing 1 has a connected installation cavity 11 and a front cavity 12. The speaker unit 2 is placed in the installation cavity 11. The front cavity 12 is located below the installation cavity 11. A support ring frame 5 is embedded in the module housing 1. The support ring frame 5 is located at the boundary between the installation cavity 11 and the front cavity 12. Each area of the inner edge of the support ring frame 5 protrudes from the inner wall surface of the installation cavity 11 to form a support platform. The top surface of the support platform forms a ring-shaped placement area 51; the first glue layer 3 is arranged in the placement area 51 and connects the sounding surface of the speaker unit 2. The sounding surface of the speaker unit 2 is the side of the speaker unit 2 where the diaphragm is provided; the second glue layer 4 connects the peripheral wall of the speaker unit 2 and the wall surface of the installation cavity 11.

[0038] The first glue layer 3 is in a continuous ring shape to ensure the waterproof performance of the speaker module. To further improve the waterproof performance of the speaker module, the bottom of the second glue layer 4 is connected to the outer edge of the first glue layer 3, that is, the first glue layer 3 is joined with the second glue layer 4.

[0039] To enable the speaker unit 2 to be more smoothly installed into the installation cavity 11 and facilitate the setting of the second glue layer 4, a guiding surface 13 is provided on the inner wall of the end of the installation cavity 11 away from the front cavity 12. The guiding surface 13 is an inclined surface or a curved surface.

[0040] Preferably, a glue-containing area is formed between the guiding surface 13 and the peripheral wall of the speaker unit 2. A partial area of the second glue layer 4 is accommodated in the glue-containing area. The glue-containing area can allow more glue to be accommodated between the peripheral wall of the speaker unit 2 and the wall surface of the installation cavity 11, thereby improving the connection stability between the module housing 1 and the speaker unit 2 and simultaneously improving the waterproof performance of the speaker module.

[0041] The support ring frame 5 has an embedding part 52 embedded in the module housing 1. Preferably, the support ring frame 5 and the module housing 1 are of an integrally formed structure by insert injection molding.

[0042] The material of the support ring frame 5 is ferroalloy or aluminum alloy. The support ring frame 5 made of a metal material can have greater structural strength even in the case of a small thickness, so that the thickness of the front cavity 12 can be set larger, thereby improving the acoustic performance of the speaker module.

[0043] The module housing 1 has a sound outlet channel 14. One end of the sound outlet channel 14 communicates with the front cavity 12, and the other end of the sound outlet channel 14 communicates with the outer surface of the module housing 1 to form a sound outlet 15. A partition wall 16 is formed between the sound outlet channel 14 and the installation cavity 11. The bottom surface of the support ring frame 5 is arranged lower than the bottom surface of the partition wall 16. In this way, the diameter of the connection between the front cavity 12 and the sound outlet channel 14 can be increased, so that the air exchange between the front cavity 12 and the outside can be more smooth, thereby improving the performance of the speaker module.

[0044] The above are only optional embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structural transformation made by using the description and drawings of the present invention under the inventive concept of the present invention, or any direct / indirect application in other related technical fields is included in the patent protection scope of the present invention.

Claims

1. A speaker module, characterized in that: include A module housing, wherein the module housing has a connecting installation cavity and a front cavity, the front cavity is located below the installation cavity, a support ring frame is embedded in the module housing, the support ring frame is located at the boundary between the installation cavity and the front cavity, each area of ​​the inner edge of the support ring frame protrudes from the inner wall surface of the installation cavity to form a support platform, and the top surface of the support platform forms a placement area in the shape of a ring frame; A speaker unit, wherein the speaker unit is placed in the installation cavity; A first adhesive layer, the first adhesive layer is arranged in the placement area and connected to the sound-emitting surface of the speaker unit; A second adhesive layer connects the peripheral wall of the speaker unit and the wall surface of the installation cavity.

2. The speaker module according to claim 1, characterized in that: The first adhesive layer is in a continuous ring frame shape.

3. The speaker module according to claim 1, characterized in that: The bottom of the second adhesive layer is connected to the outer edge of the first adhesive layer.

4. The speaker module according to claim 1, characterized in that: A guide surface is provided on the inner wall of one end of the installation cavity away from the front cavity.

5. The speaker module according to claim 4, characterized in that: The guiding surface is an inclined surface or a curved surface.

6. The speaker module according to claim 4, characterized in that: A glue containing area is formed between the guide surface and the peripheral wall of the speaker unit, and a partial area of ​​the second glue layer is contained in the glue containing area.

7. The speaker module according to claim 1, characterized in that: The supporting ring frame has an embedding portion embedded in the module housing.

8. The speaker module according to claim 7, characterized in that: The support ring frame is made of iron alloy or aluminum alloy.

9. The speaker module according to claim 7, characterized in that: The support ring frame and the module housing are an integrated structure formed by insert injection molding.

10. The speaker module according to claim 1, characterized in that: The module housing has a sound outlet channel connected to the front cavity, a partition wall is formed between the sound outlet channel and the installation cavity, and the bottom surface of the support ring frame is arranged lower than the bottom surface of the partition wall.

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