Loudspeaker module

Abstract

The utility model discloses a loudspeaker module, including loudspeaker single body, module shell, breathable isolator and sound absorption particle, loudspeaker single body installs in module shell and is surrounded with the inner surface of module shell and forms rear cavity, and the socket of module shell is equipped with the intercommunication rear cavity, breathable isolator is inserted in the socket to divide rear cavity into single body side and interstice side, and at least part sound absorption particle is located single body side.

Description

Technical Field

[0001] This utility model relates to the field of electroacoustic converter technology, and in particular to speaker modules. Background Technology

[0002] With the widespread adoption of thin and light devices such as smartphones and tablets, speaker modules need to achieve low-frequency enhancement in extremely limited installation environments. The industry generally fills the rear cavity of the speaker module with sound-absorbing particles (bass powder) to expand the virtual rear cavity and thus improve the low-frequency response. However, narrow gaps often appear in the rear cavity of irregularly shaped speaker modules. After filling with powder, the sound-absorbing particles tend to deposit preferentially and remain in the gap. The sound-absorbing particles cannot fully surround the speaker unit, resulting in a reduction in the virtual expansion effect. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a speaker module in which sound-absorbing particles can be kept around the speaker unit.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a speaker module, comprising: loudspeaker unit; The module housing contains the speaker unit, which is installed inside the module housing and surrounds the inner surface of the module housing to form a rear cavity. The module housing is provided with a port that communicates with the rear cavity. A breathable insulating element is inserted into the insertion port to divide the rear cavity into a single-piece side and a gap side; Sound-absorbing particles, at least a portion of which are located on the monomer side.

[0005] Furthermore, the outer surface of the module housing is provided with an adhesive groove, the adhesive groove is arranged around the insertion port, and the module housing and the breathable isolation component are fixedly connected by adhesive located in the adhesive groove.

[0006] Furthermore, it also includes a conductive component, one end of which is electrically connected to the speaker unit, and the other end of which extends through the gap into the module housing. The edge of the breathable insulating component is provided with a clearance notch for avoiding the conductive component.

[0007] Furthermore, the conductive component is a cable or a circuit board.

[0008] Furthermore, the inner surface of the module housing is provided with a guide slope, and the breathable isolation component has a mating slope that cooperates with the guide slope.

[0009] Furthermore, the breathable insulating component includes a breathable insulating mesh and a frame disposed along the edge of the breathable insulating mesh, the breathable insulating mesh and the frame being fixedly connected.

[0010] Furthermore, the module housing is also provided with a vent hole, which is connected to the gap side.

[0011] Furthermore, it also includes a first mesh fabric, which is disposed on the module housing and covers the vent hole.

[0012] Furthermore, the module housing is also provided with a powder filling hole and a second mesh fabric, the powder filling hole being connected to the rear cavity, and the second mesh fabric covering the powder filling hole.

[0013] The beneficial effects of this utility model are as follows: by setting an insertable ventilated isolation component in the rear cavity of the module housing, the rear cavity is divided into a single-unit side and a gap side. The sound-absorbing particles are directly confined to the single-unit side, and the sound-absorbing particles cannot migrate to the narrow gap side due to vibration or gravity. This completely avoids the sound-absorbing particles from accumulating on the gap side, ensuring that the sound-absorbing particles always surround the speaker unit, so that the virtual rear cavity expansion effect can be stably and fully utilized. When the amount of powder filling is small, the insertion of the ventilated isolation component can make all the sound-absorbing particles gather on the single-unit side, which is conducive to improving the consistency of the low-frequency performance of the speaker module. Moreover, the plug-in structure does not require additional fixing steps, making assembly simple and cost-effective. Attached Figure Description

[0014] Figure 1 This is a structural diagram of the overall structure of the speaker module; Figure 2 This is a schematic diagram of the speaker module from another perspective; Figure 3 A schematic diagram of the speaker module after the colloid is hidden; Figure 4 for Figure 3 Enlarged view of detail A in the middle; Figure 5 This is a schematic diagram of the internal structure of the speaker module; Figure 6 This is a schematic diagram of the structure of the ventilated isolation component in the speaker module.

[0015] Label Explanation: 1. Speaker unit; 2. Module housing; 21. Insertion port; 22. Adhesive tray; 23. Guide slope; 24. Vent hole; 3. Breathable insulation components; 31. Avoidance of gaps; 32. Compatibility with slopes; 33. Breathable insulation netting; 34. Frame; 4. Sound-absorbing particles; 5. Rear cavity; 51. Single-unit side; 52. Gap side; 6. Colloids; 7. Conductive components; 8. First mesh fabric; 9. Second mesh fabric. Detailed Implementation

[0016] 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.

[0017] Please refer to Figures 1 to 6 Speaker module, including: Speaker driver 1; The module housing 2, the speaker unit 1 is installed inside the module housing 2 and surrounds the inner surface of the module housing 2 to form a rear cavity 5, and the module housing 2 is provided with an insertion port 21 that communicates with the rear cavity 5; A breathable insulating element 3 is inserted into the insertion port 21 to divide the rear cavity 5 into a single side 51 and a gap side 52. Sound-absorbing particles 4, at least a portion of which are located on the monomer side 51.

[0018] As can be seen from the above description, the beneficial effects of this utility model are as follows: by setting an insertable breathable isolation piece 3 in the rear cavity 5 of the module housing 2, the rear cavity 5 is divided into a single-unit side 51 and a gap side 52. The sound-absorbing particles 4 are directly confined to the single-unit side 51, and the sound-absorbing particles 4 cannot migrate to the narrow gap side due to vibration or gravity, thereby completely avoiding the sound-absorbing particles 4 from clustering on the gap side 52, ensuring that the sound-absorbing particles 4 always surround the speaker unit 1, so that the expansion effect of the virtual rear cavity 5 can be stably and fully exerted; when the amount of powder filling is small, the insertion of the breathable isolation piece 3 can make all the sound-absorbing particles 4 gather on the single-unit side 51, which is conducive to improving the consistency of the low-frequency performance of the speaker module, and the plug-in structure does not require additional fixing steps, making assembly simple and low-cost.

[0019] Furthermore, the outer surface of the module housing 2 is provided with an adhesive groove 22, which surrounds the insertion port 21. The module housing 2 and the breathable isolation component 3 are fixedly connected by an adhesive 6 located in the adhesive groove 22.

[0020] As can be seen from the above description, by setting an adhesive groove 22 around the socket 21, the adhesive 6 is precisely constrained in the groove and cured, which not only prevents the overflow of adhesive from contaminating the rear cavity 5, but also makes the breathable isolation component 3 and the module shell 2 form a seamless and vibration-resistant adhesive bond, significantly improving the sealing reliability and long-term pull-out resistance.

[0021] Furthermore, it also includes a conductive element 7, one end of which is electrically connected to the speaker unit 1, and the other end of which passes through the gap side 52 and exits the module housing 2. The edge of the breathable isolation element 3 is provided with a clearance notch 31 for avoiding the conductive element 7.

[0022] As described above, the conductive component 7 passes through the gap side 52 and is made way by the clearance notch 31 to prevent the breathable isolation component 3 from squeezing or cutting the conductive component 7 when it is inserted, thus ensuring the integrity of the electrical connection and maintaining the isolation function, taking into account both electrical safety and smooth assembly.

[0023] Furthermore, the conductive component 7 is a cable or a circuit board.

[0024] As can be seen from the above description, the conductive component 7 is specifically limited to a cable or circuit board, which can be directly adapted to existing FPC / wire harness solutions without additional adapters, reducing the types of materials and costs, and ensuring signal transmission consistency.

[0025] Furthermore, the inner surface of the module housing 2 is provided with a guide slope 23, and the breathable isolation component 3 has a mating slope 32 that cooperates with the guide slope 23.

[0026] As described above, the guide slope 23 and the mating slope 32 work together to form a self-guiding structure. During assembly, the breathable isolation component 3 can slide into place along the guide slope 23, achieving single-hand blind insertion positioning, reducing the risk of skewing, and improving the production line cycle time and insertion accuracy.

[0027] Furthermore, the breathable insulating component 3 includes a breathable insulating mesh 33 and a frame 34 disposed along the edge of the breathable insulating mesh 33, wherein the breathable insulating mesh 33 and the frame 34 are fixedly connected.

[0028] As described above, the breathable mesh 33 and the frame 34 are pre-fixed as a whole. When inserted, the frame 34 provides rigid support, while the mesh surface is only responsible for breathability and isolation, avoiding wrinkles or damage to the soft mesh, ensuring clear separation boundaries and long-term shape stability.

[0029] Furthermore, the module housing 2 is also provided with a vent hole 24, which is connected to the gap side 52.

[0030] As described above, the gap side 52 is connected to the outside through an independent vent hole 24, which can quickly balance the air pressure when filling powder or when the temperature changes, prevent the diaphragm or dust from escaping, and at the same time maintain acoustic isolation and improve the reliability of the speaker module.

[0031] Furthermore, it also includes a first mesh fabric 8, which is disposed on the module housing 2 and covers the vent hole 24.

[0032] As described above, the first mesh 8 covers the vent holes 24, which, while maintaining air pressure balance, prevents external dust from entering the gap side 52, avoids secondary migration of dust to the unit side 51, ensures the cleanliness of the sound-absorbing particles 4, and extends their service life.

[0033] Furthermore, the module housing 2 is also provided with a powder filling hole and a second mesh 9, the powder filling hole is connected to the rear cavity 5, and the second mesh 9 covers the powder filling hole.

[0034] As can be seen from the above description, after the powder filling is completed, the second mesh 9 prevents the sound-absorbing particles 4 from flowing out.

[0035] Please refer to Figures 1 to 6 One embodiment of this utility model is a speaker module that can be installed in electronic products such as mobile phones, tablets, smartwatches, and smart glasses.

[0036] The loudspeaker module includes a loudspeaker unit 1, a module housing 2, a breathable insulating component 3, and sound-absorbing particles 4. The loudspeaker unit 1 is installed inside the module housing 2 and forms a rear cavity 5 by surrounding the inner surface of the module housing 2. The module housing 2 is provided with an insertion port 21 that communicates with the rear cavity 5. The breathable insulating component 3 is inserted into the insertion port 21 to divide the rear cavity 5 into a unit side 51 and a gap side 52. At least a portion of the sound-absorbing particles 4 are located on the unit side 51.

[0037] In some embodiments, all the sound-absorbing particles 4 are located on the single-unit side 51. The breathable isolation member 3 is inserted into the rear cavity 5 after the sound-absorbing particles 4 are filled. Compared with the solution of pre-fixing the breathable isolation structure on the module shell 2, this speaker module is more convenient for filling the sound-absorbing particles 4. Especially when the speaker module only has the sound-absorbing particles 4 on the single-unit side 51, during the filling process of the sound-absorbing particles 4, the space on the gap side 52 can be used to allow the sound-absorbing particles 4 to enter the rear cavity 5 smoothly. Then, the sound-absorbing particles 4 are gathered to the single-unit side 51 by gravity or external vibration, and finally the breathable isolation member 3 is inserted.

[0038] In a preferred embodiment, the outer surface of the module housing 2 is provided with an adhesive groove 22, which surrounds the insertion port 21. The module housing 2 and the breathable isolation component 3 are fixedly connected by an adhesive 6 located in the adhesive groove 22. Optionally, the adhesive 6 is formed by the solidification of the adhesive liquid.

[0039] The speaker module also includes a conductive component 7, one end of which is electrically connected to the speaker unit 1, and the other end of which extends through the slot side 52 out of the module housing 2 to form a conductive disk. The conductive disk is used to connect to an external power source. The edge of the breathable insulating component 3 is provided with a clearance notch 31 to avoid the conductive component 7. The conductive component 7 can be a cable or a circuit board, and the circuit board includes rigid circuit boards and flexible circuit boards.

[0040] Optionally, the inner surface of the module housing 2 is provided with a guide slope 23, and the breathable isolation component 3 has a mating slope 32 that cooperates with the guide slope 23.

[0041] In detail, the breathable isolation component 3 includes a breathable isolation net 33 and a frame 34 arranged along the edge of the breathable isolation net 33. The breathable isolation net 33 and the frame 34 are fixedly connected, and the avoidance opening 31 and the matching slope 32 are both provided on the frame 34.

[0042] The module housing 2 is also provided with a vent 24, which is connected to the gap side 52. The speaker module also includes a first mesh 8, which is disposed on the module housing 2 and covers the vent 24.

[0043] The module housing 2 is also provided with a powder filling hole and a second mesh 9. The powder filling hole is connected to the rear cavity 5, and the second mesh 9 covers the powder filling hole. In this embodiment, the powder filling hole is provided corresponding to the single unit side 51.

[0044] 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 speaker module, characterized in that, include loudspeaker unit; The module housing contains the speaker unit, which is installed inside the module housing and surrounds the inner surface of the module housing to form a rear cavity. The module housing is provided with a port that communicates with the rear cavity. A breathable insulating element is inserted into the insertion port to divide the rear cavity into a single-piece side and a gap side; Sound-absorbing particles, at least a portion of which are located on the monomer side.

2. The speaker module according to claim 1, characterized in that, The outer surface of the module housing is provided with a glue-containing groove, which is arranged around the insertion port. The module housing and the breathable isolation component are fixedly connected by glue located in the glue-containing groove.

3. The speaker module according to claim 1, characterized in that, It also includes a conductive component, one end of which is electrically connected to the speaker unit, and the other end of which extends through the gap into the module housing. The edge of the breathable insulating component is provided with a clearance notch for avoiding the conductive component.

4. The speaker module according to claim 3, characterized in that, The conductive component is a cable or a circuit board.

5. The speaker module according to claim 1, characterized in that, The inner surface of the module housing is provided with a guide slope, and the breathable isolation component has a mating slope that cooperates with the guide slope.

6. The speaker module according to claim 1, characterized in that, The breathable insulating component includes a breathable insulating mesh and a frame disposed along the edge of the breathable insulating mesh, and the breathable insulating mesh and the frame are fixedly connected.

7. The speaker module according to claim 1, characterized in that, The module housing is also provided with a vent hole, which is connected to the gap side.

8. The speaker module according to claim 7, characterized in that, It also includes a first mesh fabric, which is disposed on the module housing and covers the vent hole.

9. The speaker module according to claim 1, characterized in that, The module housing is also provided with a powder filling hole and a second mesh fabric. The powder filling hole is connected to the rear cavity, and the second mesh fabric covers the powder filling hole.

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