CN220798532U - Miniature loudspeaker module - Google Patents
Miniature loudspeaker module Download PDFInfo
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- CN220798532U CN220798532U CN202322253116.3U CN202322253116U CN220798532U CN 220798532 U CN220798532 U CN 220798532U CN 202322253116 U CN202322253116 U CN 202322253116U CN 220798532 U CN220798532 U CN 220798532U
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- 230000002093 peripheral effect Effects 0.000 claims description 8
- 239000012528 membrane Substances 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 24
- 230000009286 beneficial effect Effects 0.000 abstract description 9
- 238000000034 method Methods 0.000 abstract description 5
- 239000000178 monomer Substances 0.000 abstract description 5
- 230000008030 elimination Effects 0.000 abstract description 4
- 238000003379 elimination reaction Methods 0.000 abstract description 4
- 239000002994 raw material Substances 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 2
- 241000463219 Epitheca Species 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
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Abstract
The utility model discloses a miniature loudspeaker module, which comprises a lower shell, an upper shell, a vibration assembly and a magnetic circuit assembly, wherein the upper shell is connected with the lower shell to form an accommodating space, and a window is arranged on the upper shell; the vibration assembly comprises a vibration film assembly and a voice coil which are connected, the vibration film assembly is connected with the upper shell and seals the window, and the voice coil is positioned in the accommodating space; the magnetic circuit assembly is arranged in the accommodating space and provided with a magnetic gap for the voice coil to move. The miniature loudspeaker module cancels a basin frame, simplifies the miniature loudspeaker module structure, enables the miniature loudspeaker monomer and the module shell to be integrated into an integral structure, not only can reduce the consumption of manufacturing raw materials, but also can shorten the assembly process of the miniature loudspeaker module, effectively improves the production efficiency of the miniature loudspeaker module and reduces the production cost of the miniature loudspeaker module. Moreover, the elimination of the basin frame is beneficial to enlarging the volume of the rear sound cavity of the micro-speaker module and improving the acoustic performance of the micro-speaker module.
Description
Technical Field
The utility model relates to the technical field of electroacoustic converters, in particular to a miniature loudspeaker module.
Background
With the thinning of portable electronic devices, the miniature speaker modules mounted thereon are also designed to be thin and lightweight.
The miniature loudspeaker module comprises a module shell and a miniature loudspeaker monomer arranged in the module shell, wherein the module shell comprises an upper shell and a lower shell which are connected, and the miniature loudspeaker monomer comprises a basin frame, and a vibrating diaphragm assembly and a magnetic circuit assembly which are respectively connected with the basin frame. The basin stand and the upper shell exist simultaneously, so that more production materials are required to be consumed, the production procedure of the micro-speaker module is prolonged, and the manufacturing cost of the micro-speaker module is high.
Disclosure of Invention
The technical problems to be solved by the utility model are as follows: a low cost micro speaker module is provided.
In order to solve the technical problems, the utility model adopts the following technical scheme: a miniature speaker module comprising:
a lower case;
the upper shell is connected with the lower shell to form an accommodating space, and a window is arranged on the upper shell;
the vibration assembly comprises a vibration film assembly and a voice coil which are connected, the vibration film assembly is connected with the upper shell and seals the windowing, and the voice coil is positioned in the accommodating space;
the magnetic circuit assembly is arranged in the accommodating space and provided with a magnetic gap for the voice coil to move.
Further, the upper shell comprises a top plate and a surrounding wall arranged around the edge of the top plate, the top plate is connected with the surrounding wall, the window is arranged on the top plate, and the lower shell is connected with the surrounding wall and is far away from the top plate.
Further, the top surface of roof is equipped with the mounting groove, the fenestration intercommunication the middle part region of the bottom surface of mounting groove, vibrating diaphragm assembly's edge connection the bottom surface of mounting groove.
Further, the bottom surface of the top plate is provided with a boss extending downwards, and the boss is connected with the magnetic circuit assembly.
Further, the bosses are respectively arranged on two opposite sides of the windowed window.
Further, the outer peripheral wall of the lower shell is fixedly connected with the inner peripheral wall of the surrounding wall.
Further, the inner surface of the upper shell is provided with a positioning convex strip arranged along the vertical direction, and the magnetic circuit assembly is provided with a first positioning groove matched with the positioning convex strip.
Further, the top surface of the lower shell is provided with a second positioning groove matched with the positioning convex strip.
Further, the middle areas of the two opposite sides of the upper shell are provided with wall plates extending downwards, and the wall plates are arranged corresponding to the magnetic circuit assembly; the middle area of the lower shell is provided with a lower concave part, and two opposite sides of the lower concave part are respectively connected with the bottom of the wallboard.
Further, the vibrating diaphragm assembly comprises a sound membrane and a ball top, the sound membrane comprises an inner fixing part, a folded ring part and an outer fixing part which are sequentially connected from inside to outside, the outer fixing part is connected with the upper shell, and the ball top is connected with the inner fixing part.
The utility model has the beneficial effects that: the miniature loudspeaker module cancels a basin frame, simplifies the miniature loudspeaker module structure, enables the miniature loudspeaker monomer and the module shell to be integrated into an integral structure, not only can reduce the consumption of manufacturing raw materials, but also can shorten the assembly process of the miniature loudspeaker module, effectively improves the production efficiency of the miniature loudspeaker module and reduces the production cost of the miniature loudspeaker module. Moreover, the elimination of the basin frame is beneficial to enlarging the volume of the rear sound cavity of the micro-speaker module and improving the acoustic performance of the micro-speaker module.
Drawings
Fig. 1 is a schematic structural diagram of a micro-speaker module according to a first embodiment of the present utility model;
fig. 2 is a schematic structural diagram of a micro-speaker module according to another embodiment of the present utility model;
fig. 3 is a cross-sectional view of a micro speaker module according to a first embodiment of the present utility model;
fig. 4 is a schematic structural diagram of a portion of a micro-speaker module according to an embodiment of the present utility model;
fig. 5 is a schematic structural diagram of a lower case in a micro speaker module according to an embodiment of the utility model.
Description of the reference numerals:
1. a lower case; 11. a second positioning groove; 12. a concave portion;
2. an upper case; 21. a top plate; 211. windowing; 212. a mounting groove; 213. a boss; 22. a surrounding wall; 23. positioning convex strips; 24. a wall plate;
3. a diaphragm assembly;
4. a voice coil;
5. a magnetic circuit assembly; 51. a first positioning groove.
Detailed Description
In order to describe the technical contents, the achieved objects and effects of the present utility model in detail, the following description will be made with reference to the embodiments in conjunction with the accompanying drawings.
Referring to fig. 1 to 5, a micro speaker module includes:
a lower case 1;
an upper shell 2, wherein the upper shell 2 is connected with the lower shell 1 to form an accommodating space, and a window 211 is arranged on the upper shell 2;
the vibration assembly comprises a vibration film assembly 3 and a voice coil 4 which are connected, the vibration film assembly 3 is connected with the upper shell 2 and seals the open window 211, and the voice coil 4 is positioned in the accommodating space;
and the magnetic circuit assembly 5 is arranged in the accommodating space, and the magnetic circuit assembly 5 is provided with a magnetic gap for the voice coil 4 to move.
From the above description, the beneficial effects of the utility model are as follows: the miniature loudspeaker module cancels a basin frame, simplifies the miniature loudspeaker module structure, enables the miniature loudspeaker monomer and the module shell to be integrated into an integral structure, not only can reduce the consumption of manufacturing raw materials, but also can shorten the assembly process of the miniature loudspeaker module, effectively improves the production efficiency of the miniature loudspeaker module and reduces the production cost of the miniature loudspeaker module. Moreover, the elimination of the basin frame is beneficial to enlarging the volume of the rear sound cavity of the micro-speaker module and improving the acoustic performance of the micro-speaker module.
Further, the upper case 2 includes a top plate 21 and a surrounding wall 22 disposed around an edge of the top plate 21, the top plate 21 is connected to the surrounding wall 22, the window 211 is disposed on the top plate 21, and the lower case 1 is connected to the surrounding wall 22 and is disposed away from the top plate 21.
From the above description, the upper case 2 has a simple structure and is convenient to manufacture.
Further, the top surface of the top plate 21 is provided with a mounting groove 212, the window 211 is communicated with a middle area of the bottom surface of the mounting groove 212, and the edge of the diaphragm assembly 3 is connected with the bottom surface of the mounting groove 212.
As can be seen from the above description, the mounting groove 212 not only facilitates positioning and mounting of the diaphragm assembly 3, but also accommodates a partial region of the diaphragm assembly 3, so that the micro-speaker module can perform larger vibration, and the micro-speaker module can be applied to a mounting environment with a limited mounting space.
Further, the bottom surface of the top plate 21 has a downward extending boss 213, and the boss 213 is connected to the magnetic circuit assembly 5.
As can be seen from the above description, the boss 213 can provide enough space for the vibration of the diaphragm assembly 3 to make the micro-speaker module vibrate more. Meanwhile, due to the existence of the boss 213, the thickness of other areas of the top plate 21 can be made thinner, thereby reducing the production consumable of the upper case 2 and facilitating the further reduction of the manufacturing cost of the micro-speaker module.
Further, the bosses 213 are respectively disposed on two opposite sides of the window 211.
As is apparent from the above description, the two bosses 213 provided opposite to each other can provide stable support for the magnetic circuit assembly 5.
Further, the outer peripheral wall of the lower case 1 is fixedly connected with the inner peripheral wall of the surrounding wall 22.
As can be seen from the above description, the connection between the upper case 2 and the lower case 1 is located at the bottom surface of the micro-speaker module, so that the risk of separation of the lower case 1 from the upper case 2 due to external impact can be reduced, which is beneficial to improving the structural stability of the micro-speaker module.
Further, the inner surface of the upper case 2 has a positioning protrusion 23 disposed in a vertical direction, and the magnetic circuit assembly 5 has a first positioning groove 51 engaged with the positioning protrusion 23.
As can be seen from the above description, the cooperation of the positioning protruding strips 23 and the first positioning grooves 51 can enable the magnetic circuit assembly 5 to be installed and positioned faster and more accurately, which is beneficial to improving the production quality and production efficiency of the micro-speaker module.
Further, the top surface of the lower case 1 is provided with a second positioning groove 11 which is matched with the positioning convex strip 23.
As can be seen from the above description, the cooperation of the positioning protruding strips 23 and the first positioning grooves 51 can enable the lower shell 1 to be installed and positioned faster and more accurately, which is beneficial to improving the production quality and production efficiency of the micro-speaker module.
Further, the middle regions of the opposite sides of the upper case 2 have wall plates 24 extending downward, the wall plates 24 being disposed in correspondence with the magnetic circuit assembly 5; the lower shell 1 has a lower recess 12 in a central region thereof, and opposite sides of the lower recess 12 are respectively connected to bottoms of the wall plates 24.
As can be seen from the above description, the thickness of the two ends of the micro-speaker module can be designed to be thinner, so that the micro-speaker module can be suitable for some installation environments with special installation spaces.
Further, the diaphragm assembly 3 includes a sound membrane and a dome, the sound membrane includes an inner fixing portion, a folded ring portion and an outer fixing portion which are sequentially connected from inside to outside, the outer fixing portion is connected with the upper shell 2, and the dome is connected with the inner fixing portion.
From the above description, it is apparent that the arrangement of the dome can improve the rigidity of the inner fixing portion.
Example 1
Referring to fig. 1 to 5, a first embodiment of the present utility model is as follows: a micro speaker module can be applied to electronic equipment such as mobile phones, tablet computers, smart watches, notebook computers and the like.
Referring to fig. 1 to 3, the micro-speaker includes a lower case 1, an upper case 2, a vibration assembly and a magnetic circuit assembly 5, wherein the upper case 2 is connected with the lower case 1 to form an accommodating space, and a window 211 is provided on the upper case 2; the vibration assembly comprises a vibration film assembly 3 and a voice coil 4 which are connected, the vibration film assembly 3 is connected with the upper shell 2 and seals the window 211, the vibration film assembly 3 comprises a sound film and a ball top, the sound film comprises an inner fixing part, a folded ring part and an outer fixing part which are sequentially connected from inside to outside, the outer fixing part is connected with the upper shell 2, the ball top is connected with the inner fixing part, the voice coil 4 is positioned in the accommodating space, and the voice coil 4 is connected with the ball top or the inner fixing part; the magnetic circuit assembly 5 is arranged in the accommodating space, the magnetic circuit assembly 5 is provided with a magnetic gap for the voice coil 4 to move, and the magnetic circuit assembly 5 is fixedly connected with the upper shell 2 and/or the lower shell 1.
In this embodiment, the upper shell 2 includes a top plate 21 and a surrounding wall 22 disposed around an edge of the top plate 21, the top plate 21 is connected to the surrounding wall 22, the window 211 is disposed on the top plate 21, and the lower shell 1 is connected to the surrounding wall 22 and is disposed away from the top plate 21, and optionally, an outer peripheral wall of the lower shell 1 is fixedly connected to an inner peripheral wall of the surrounding wall 22. Specifically, the top plate 21 and the surrounding wall 22 are integrally formed as a one-piece structure, such as injection molding, etc., and it is easy to understand that, in other embodiments, a part or all of the surrounding wall 22 may be integrally formed as a one-piece structure with the lower shell 1, and may be specifically selected according to practical needs.
As shown in fig. 1 and 3, in order to reduce the risk that the diaphragm assembly 3 is separated from the upper case 2 due to the impact of foreign objects, the top surface of the top plate 21 is provided with a mounting groove 212, the window 211 is communicated with a middle area of the bottom surface of the mounting groove 212, and the edge of the diaphragm assembly 3 is connected with the bottom surface of the mounting groove 212. Specifically, the bottom surface of the outer edge of the outer fixing portion is adhesively connected to the bottom surface of the mounting groove 212.
Referring to fig. 2 to 5, optionally, the bottom surface of the top plate 21 has a downward extending boss 213, and the boss 213 is connected to the magnetic circuit assembly 5. In detail, the bosses 213 are respectively disposed on two opposite sides of the window 211, and in this embodiment, the bosses 213 are disposed along the length direction of the top plate 21; the bottom surface of the boss 213 is adhesively connected to the top surface of the magnetic circuit assembly 5.
As shown in fig. 3 and 4, the inner surface of the upper case 2 has a positioning protrusion 23 provided in a vertical direction, and the magnetic circuit assembly 5 has a first positioning groove 51 engaged with the positioning protrusion 23. Optionally, the top surface of the lower shell 1 is provided with a second positioning groove 11 matched with the positioning convex strip 23. When the upper case 2 is adhesively connected with the lower case 1 or ultrasonically welded, the second positioning groove 11 can increase the bonding area of the upper case 2 and the lower case 1, thereby improving the bonding force between the upper case 2 and the lower case 1 and further improving the structural stability of the micro-speaker module.
Referring to fig. 1, 2 and 5, in order to make the micro-speaker module form a pattern with thick middle and thin two ends, so as to adapt to a specific installation environment, in this embodiment, the middle areas of two opposite sides of the upper case 2 have wall plates 24 extending downward, and the wall plates 24 are disposed corresponding to the magnetic circuit assembly 5; the lower shell 1 has a lower recess 12 in a central region thereof, and opposite sides of the lower recess 12 are respectively connected to bottoms of the wall plates 24.
As shown in fig. 4, in this embodiment, the positioning protruding strips 23 connect the bottom surface of the boss 213, the inner side surface of the surrounding wall 22, and the inner side surface of the wall plate 24, so that the design of the processing mold of the upper case 2 can be facilitated.
In summary, the micro speaker module provided by the utility model omits a basin frame, simplifies the structure of the micro speaker module, and enables the micro speaker unit and the module housing to be integrated into an integral structure, thereby not only reducing the consumption of manufacturing raw materials, but also shortening the assembly process of the micro speaker module, effectively improving the production efficiency of the micro speaker module and reducing the production cost of the micro speaker module. Moreover, the elimination of the basin frame is beneficial to enlarging the volume of the rear sound cavity of the micro-speaker module and improving the acoustic performance of the micro-speaker module. The upper shell is internally provided with the positioning convex strips, the lower shell is provided with the second positioning grooves matched with the positioning convex strips, so that the positioning and the installation of the lower shell can be facilitated, and the connection stability of the lower shell and the upper shell is improved. The boss set up in the epitheca can reduce the production consumptive material of roof, does benefit to the manufacturing cost who further reduces miniature speaker module.
The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent changes made by the specification and drawings of the present utility model, or direct or indirect application in the relevant art, are included in the scope of the present utility model.
Claims (10)
1. A miniature speaker module, characterized in that: comprising
A lower case;
the upper shell is connected with the lower shell to form an accommodating space, and a window is arranged on the upper shell;
the vibration assembly comprises a vibration film assembly and a voice coil which are connected, the vibration film assembly is connected with the upper shell and seals the windowing, and the voice coil is positioned in the accommodating space;
the magnetic circuit assembly is arranged in the accommodating space and provided with a magnetic gap for the voice coil to move.
2. The micro-speaker module according to claim 1, wherein: the upper shell comprises a top plate and a surrounding wall arranged around the edge of the top plate, the top plate is connected with the surrounding wall, the window is arranged on the top plate, and the lower shell is connected with the surrounding wall and is far away from the top plate.
3. The micro-speaker module according to claim 2, wherein: the top surface of roof is equipped with the mounting groove, the fenestration intercommunication the middle part region of the bottom surface of mounting groove, vibrating diaphragm assembly's edge connection the bottom surface of mounting groove.
4. The micro-speaker module according to claim 2, wherein: the bottom surface of roof has the boss that extends downwards, the boss is connected the magnetic circuit subassembly.
5. The micro-speaker module according to claim 4, wherein: the bosses are respectively arranged on the two opposite sides of the window.
6. The micro-speaker module according to claim 2, wherein: the outer peripheral wall of the lower shell is fixedly connected with the inner peripheral wall of the surrounding wall.
7. The micro-speaker module according to claim 1, wherein: the inner surface of the upper shell is provided with a positioning convex strip arranged along the vertical direction, and the magnetic circuit assembly is provided with a first positioning groove matched with the positioning convex strip.
8. The micro-speaker module according to claim 7, wherein: the top surface of the lower shell is provided with a second positioning groove matched with the positioning convex strip.
9. The micro-speaker module according to claim 1, wherein: the middle areas of the two opposite sides of the upper shell are provided with wall plates extending downwards, and the wall plates are arranged corresponding to the magnetic circuit components; the middle area of the lower shell is provided with a lower concave part, and two opposite sides of the lower concave part are respectively connected with the bottom of the wallboard.
10. The micro-speaker module according to claim 1, wherein: the vibrating diaphragm assembly comprises a sound membrane and a ball top, wherein the sound membrane comprises an inner fixing part, a folded ring part and an outer fixing part which are sequentially connected from inside to outside, the outer fixing part is connected with the upper shell, and the ball top is connected with the inner fixing part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322253116.3U CN220798532U (en) | 2023-08-22 | 2023-08-22 | Miniature loudspeaker module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322253116.3U CN220798532U (en) | 2023-08-22 | 2023-08-22 | Miniature loudspeaker module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220798532U true CN220798532U (en) | 2024-04-16 |
Family
ID=90631761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322253116.3U Active CN220798532U (en) | 2023-08-22 | 2023-08-22 | Miniature loudspeaker module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220798532U (en) |
-
2023
- 2023-08-22 CN CN202322253116.3U patent/CN220798532U/en active Active
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