CN214154827U - Loudspeaker module and sound generating device - Google Patents
Loudspeaker module and sound generating device Download PDFInfo
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- CN214154827U CN214154827U CN202022891782.6U CN202022891782U CN214154827U CN 214154827 U CN214154827 U CN 214154827U CN 202022891782 U CN202022891782 U CN 202022891782U CN 214154827 U CN214154827 U CN 214154827U
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Abstract
The utility model discloses a loudspeaker module, including metal epitheca, plastic support, loudspeaker monomer and metal inferior valve, the metal epitheca is equipped with and surrounds the structure, the plastic support is located and surrounds in the structure, the loudspeaker monomer is located on the plastic support, the metal inferior valve is connected with the metal epitheca in order to seal to enclosing the structure, loudspeaker monomer, plastic support and metal epitheca three enclose into the front sound chamber, the metal epitheca is equipped with the sound outlet that communicates the front sound chamber, four of loudspeaker monomer, plastic support, metal epitheca and metal inferior valve enclose into the back sound chamber; the utility model provides a speaker module and sound generating mechanism is small and the sound chamber is big, under the prerequisite that satisfies speaker cavity performance, has reduced the holistic volume of speaker module to structural style is abundant, and structural strength is high.
Description
Technical Field
The utility model relates to an acoustics device technical field especially relates to a speaker module and sound generating mechanism.
Background
With the progress of science and technology, electronic products such as mobile phones, tablet computers and various wearable electronic devices tend to be miniaturized more and more, and how to reduce the volume of the electronic products becomes a very important part in the design of the electronic products.
The conventional moving-coil loudspeaker mainly comprises a moving-coil loudspeaker, an electromagnetic loudspeaker, a capacitive loudspeaker, a piezoelectric loudspeaker and the like, wherein the moving-coil loudspeaker is relatively simple to manufacture, low in cost, good in low-frequency sound production advantage and the like;
along with the miniaturized development of electronic product, the inside space of reserving for the installation speaker of current electronic product is also more and more littleer, and the goodness of speaker module acoustic performance depends on the size of speaker module casing sound cavity volume, current speaker module casing generally is made for the plastic material, for the structural strength who ensures speaker module casing, the thickness of the speaker module casing that the plastic material was made needs more than 0.7mm, so, the miniaturized development trend of speaker module and the maximize of sound cavity space design have been restricted.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: a speaker module and a sound generating apparatus are provided.
In order to solve the technical problem, the utility model discloses a technical scheme be: a loudspeaker module comprises a metal upper shell, a plastic support, a loudspeaker monomer and a metal lower shell, wherein the metal upper shell is provided with a surrounding structure, the plastic support is arranged in the surrounding structure, the loudspeaker monomer is arranged on the plastic support, the metal lower shell is connected with the metal upper shell to seal the surrounding structure, the loudspeaker monomer, the plastic support and the metal upper shell are surrounded to form a front sound cavity, the metal upper shell is provided with a sound outlet communicated with the front sound cavity, and the loudspeaker monomer, the plastic support, the metal upper shell and the metal lower shell are surrounded to form a rear sound cavity.
Furthermore, the plastic support and the metal upper shell are of an integrated structure formed by injection molding in a die.
Furthermore, the plastic support is glued to the metal upper shell.
Further, the metal lower shell and the metal upper shell are connected through a laser welding and/or adhesive connection mode.
Furthermore, the plastic support comprises a support body, and the support body is positioned in the surrounding structure and is abutted against the metal lower shell.
Furthermore, the loudspeaker further comprises an FPC, a avoiding groove for avoiding the FPC is formed in the enclosing structure, one end of the FPC is electrically connected with the loudspeaker single body, and the other end of the FPC penetrates through the avoiding groove and is exposed out of the metal upper shell.
In order to solve the technical problem, the utility model also provides a sound generating device, including the installation shell, the installation shell is equipped with the mounting groove, still includes above-mentioned speaker module, the speaker module install in the mounting groove.
Furthermore, the loudspeaker module is adhered in the mounting groove through a double-sided adhesive tape.
Furthermore, the loudspeaker module is connected in the mounting groove through a screw.
The beneficial effects of the utility model reside in that: the utility model provides a speaker module and sound generating mechanism is small and the sound chamber is big, and metal epitheca and metal inferior valve all adopt the metal to make, under the prerequisite of guaranteeing this speaker module's structural strength, can make the thickness of metal epitheca and metal inferior valve 0.1mm, compare traditional plastic casing, the volume is littleer, accords with the miniaturized development trend of electronic product; the metal epitheca sets up to surround the structure and accomodates the plastic support, and speaker monomer, plastic support and metal epitheca three enclose into preceding vocal chamber, and four enclose into the back vocal chamber under speaker monomer, plastic support, metal epitheca and the metal inferior valve, have realized the maximize in the cavity space in preceding vocal chamber and back vocal chamber under the limited space, do benefit to the promotion of speaker module cavity performance.
Drawings
Fig. 1 is an assembly view of a speaker module according to a first embodiment of the present invention;
fig. 2 is an exploded view of a speaker module according to a first embodiment of the present invention;
fig. 3 is a schematic cross-sectional structure view of a speaker module according to a first embodiment of the present invention;
fig. 4 is a schematic structural view of a sound generating device according to a second embodiment of the present invention.
Description of reference numerals:
10. a speaker module; 1. a metal upper shell; 11. a surrounding structure; 12. a sound outlet; 13. a position avoiding groove; 2. a metal lower case; 3. a plastic bracket; 31. a support portion; 32. a sound emitting portion; 33. a sound outlet; 34. a support body; 4. a speaker unit; 5. sound-absorbing particles; 6. FPC; 7. a front acoustic chamber; 8. a rear acoustic chamber; 20. installing a shell; 21. and (4) mounting the groove.
Detailed Description
In order to explain the technical content, the objects and the effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.
Referring to fig. 1 to 3, a speaker module includes a metal upper shell 1, a plastic support 3, a speaker unit 4, and a metal lower shell 2, where the metal upper shell 1 is provided with a surrounding structure 11, the plastic support 3 is disposed in the surrounding structure 11, the speaker unit 4 is disposed on the plastic support 3, the metal lower shell 2 is connected to the metal upper shell 1 to seal the surrounding structure 11, the speaker unit 4, the plastic support 3, and the metal upper shell 1 surround a front acoustic cavity 7, the metal upper shell 1 is provided with a sound outlet 12 communicating with the front acoustic cavity 7, and the speaker unit 4, the plastic support 3, the metal upper shell 1, and the metal lower shell 2 surround a rear acoustic cavity 8.
From the above description, the beneficial effects of the present invention are: the metal upper shell 1 and the metal lower shell 2 are both made of metal, so that on the premise of ensuring the structural strength of the loudspeaker module 10, the thicknesses of the metal upper shell 1 and the metal lower shell 2 can be made to be 0.1mm, and compared with the traditional plastic shell, the loudspeaker module is smaller in size and conforms to the development trend of miniaturization of electronic products; metal epitheca 1 sets up to surround structure 11 and accomodates plastic support 3, and speaker monomer 4, plastic support 3 and 1 three of metal epitheca enclose into preceding acoustic cavity 7, and speaker monomer 4, plastic support 3, metal epitheca 1 and metal inferior valve 2 four enclose into back acoustic cavity 8, have realized the maximize in the cavity space of preceding acoustic cavity 7 and back acoustic cavity 8 under the limited space, do benefit to the promotion of 10 cavity performances of speaker module.
Furthermore, the plastic support 3 and the metal upper shell 1 are of an integrated structure formed by injection molding in a mold.
Known from the above description, plastic support 3 is in through moulding plastics in the mould shaping on the metal epitheca 1 can ensure plastic support 3 with the reliability of connecting between the metal epitheca 1 does benefit to structural strength's promotion, can reduce the risk of preceding acoustic cavity 7 sound leakage simultaneously, does benefit to the promotion of speaker module 10 acoustic performance.
Further, the plastic support 3 is adhered to the metal upper shell 1.
As can be seen from the above description, the plastic support 3 is adhesively connected to the metal upper shell 1, so that the process is simple and the production efficiency is improved.
Further, the metal lower shell 2 and the metal upper shell 1 are connected by means of laser welding and/or adhesive bonding.
As can be seen from the above description, the connection manner of the metal upper shell 1 and the metal lower shell 2 can be selected according to the actual application requirements.
Further, the plastic bracket 3 includes a supporting body 34, and the supporting body 34 is located in the surrounding structure 11 and is abutted against the metal lower shell 2.
As can be seen from the above description, the supporting body 34 can support the metal lower shell 2, which is beneficial to improving the structural strength.
Further, the enclosure structure 11 is provided with an FPC6, the enclosure structure 11 is provided with a position avoiding groove 13 for avoiding a position of the FPC6, one end of the FPC6 is electrically connected to the speaker unit 4, and the other end of the FPC6 penetrates through the position avoiding groove 13 and is exposed out of the metal upper shell 1.
As is apparent from the above description, the FPC6 is used to electrically connect the speaker unit 4 to an external member.
In order to solve the technical problem, the utility model also provides a sound generating device, including installation shell 20, installation shell 20 is equipped with mounting groove 21, still includes above-mentioned speaker module 10, speaker module 10 install in the mounting groove 21.
Further, the speaker module 10 is adhered to the mounting groove 21 by a double-sided adhesive tape.
As can be seen from the above description, the speaker module 10 is adhered to the mounting groove 21 through the double-sided adhesive tape, so that the process is simple, the assembly is convenient, and the production efficiency is improved.
Further, the speaker module 10 is connected to the mounting groove 21 by screws.
As can be seen from the above description, the speaker module 10 is connected to the mounting groove 21 through screws, so that the speaker module 10 can be stably mounted in the mounting groove 21, which is beneficial to improving the structural stability.
Example one
Referring to fig. 1 to fig. 3, a first embodiment of the present invention is: a loudspeaker module comprises a metal upper shell 1, a plastic support 3, a loudspeaker monomer 4 and a metal lower shell 2, wherein the metal upper shell 1 is provided with a surrounding structure 11, the plastic support 3 is arranged in the surrounding structure 11, the loudspeaker monomer 4 is arranged on the plastic support 3, the metal lower shell 2 is connected with the metal upper shell 1 to seal the surrounding structure 11, the loudspeaker monomer 4, the plastic support 3 and the metal upper shell 1 form a front sound cavity 7 in a surrounding manner (as shown in figure 3), the metal upper shell 1 is provided with a sound outlet 12 communicated with the front sound cavity 7, the loudspeaker monomer 4, the plastic support 3, the metal upper shell 1 and the metal lower shell 2 form a rear sound cavity 8 in a surrounding manner, and the rear sound cavity 8 is filled with sound absorption particles 5; optionally, the metal upper shell 1 and the metal lower shell 2 may be made of, but not limited to, a steel material, an aluminum material, or a copper material, and may be specifically selected according to actual application requirements, which is beneficial to expansion of design dimensions.
Optionally, the plastic support 3 may be molded on the metal upper shell 1 by in-mold injection molding, so that the reliability of connection between the plastic support 3 and the metal upper shell 1 can be ensured, the improvement of structural strength is facilitated, meanwhile, the risk of sound leakage of the front acoustic cavity 7 can be reduced, and the improvement of acoustic performance of the speaker module is facilitated; or, the plastic support 3 can be also connected in the enclosing structure 11 by glue, which is easy to understand, and the process of the glue connection mode is simple, thereby being beneficial to the improvement of the production efficiency; the setting can be specifically carried out according to the actual application requirements.
Optionally, the metal lower shell 2 and the metal upper shell 1 are connected by laser welding and/or adhesive bonding, that is, the metal lower shell 2 may be welded to the metal upper shell 1 by laser welding, or the metal lower shell 2 may be adhered to the metal upper shell 1 by adhesive bonding, which may be specifically selected according to actual application requirements.
Specifically, in this embodiment, the metal lower shell 2 is first welded to the metal upper shell 1 by laser, and then the welding position of the metal lower shell 2 and the metal upper shell 1 is sealed by dispensing with sealing glue; the method comprises the following specific steps: firstly, covering the metal lower shell 2 on the metal upper shell 1, obtaining four groups of welding points at the joint of the metal lower shell 2 and the metal upper shell 1, wherein each group of welding points comprises two welding points which are symmetrically arranged, respectively carrying out laser welding on the four groups of welding points, and coating a circle of sealant at the joint of the metal lower shell 2 and the metal upper shell 1 after the welding is finished.
Preferably, the plastic support 3 includes a sound outlet 32 disposed at the sound outlet 12 and a support 31 for supporting the speaker unit 4, and the sound outlet 32 is provided with a sound outlet 33 for communicating the front sound cavity 7 with the outside; specifically, still be equipped with supporter 34 on the supporting part 31, supporter 34 is located surround in the structure 11 and with metal inferior valve 2 is contradicted, and easy understanding, supporting part 31 can be right metal inferior valve 2 supports, does benefit to structural strength's promotion.
In this embodiment, the speaker module further includes an FPC6 (i.e., a flexible circuit board), the enclosure structure 11 is provided with a avoiding groove 13 for avoiding a position of the FPC6, one end of the FPC6 is electrically connected to the speaker unit 4, and the other end of the FPC6 penetrates through the avoiding groove 13 and is exposed out of the metal upper shell 1, which is easy to understand that the FPC6 is used for electrically connecting the speaker unit 4 with an external component. Specifically, the avoiding groove 13 is formed in the middle of one side wall of the metal upper shell 1, and after the metal lower shell 2 is assembled to the metal upper shell 1, the avoiding groove 13 is sealed through a sealant.
Example two
Referring to fig. 4, a second embodiment of the present invention is: a sound generating device can be a mobile phone or a tablet personal computer, and specifically comprises an installation shell 20, wherein the installation shell 20 is provided with an installation groove 21, and the sound generating device further comprises the loudspeaker module 10, wherein the loudspeaker module 10 is installed in the installation groove 21, and optionally, the loudspeaker module 10 is bonded in the installation groove 21 through a double-faced adhesive tape, so that the sound generating device is simple in process, convenient to assemble and beneficial to improvement of production efficiency; or, the speaker module 10 is connected to the mounting groove 21 through a screw, so that the speaker module 10 can be stably mounted in the mounting groove 21, and the improvement of the structural stability is facilitated; specifically, in this embodiment, the speaker module 10 is bonded in the mounting groove 21 by using a double-sided tape, and then the speaker module 10 is fixed in the mounting groove 21 by using a screw.
To sum up, the utility model provides a speaker module and sound generating mechanism is small and the sound chamber is big, under the prerequisite that satisfies speaker cavity performance, has reduced the holistic volume of speaker module to structural style is abundant, and structural strength is high.
The above mentioned is only the embodiment of the present invention, and not the limitation of the patent scope of the present invention, all the equivalent transformations made by the contents of the specification and the drawings, or the direct or indirect application in the related technical field, are included in the patent protection scope of the present invention.
Claims (9)
1. The utility model provides a loudspeaker module, its characterized in that, includes metal epitheca, plastic support, speaker monomer and metal inferior valve, the metal epitheca is equipped with and surrounds the structure, the plastic support is located surround in the structure, the speaker monomer is located on the plastic support, the metal inferior valve with the metal epitheca is connected in order to right it seals to surround the structure, speaker monomer, plastic support and the metal epitheca three enclose into preceding vocal cavity, the metal epitheca is seted up the mouth that gives sound that communicates preceding vocal cavity, speaker monomer, plastic support, metal epitheca and the metal inferior valve four enclose into the back vocal cavity.
2. The speaker module as claimed in claim 1, wherein the plastic frame and the metal top case are integrally formed by injection molding.
3. The speaker module as claimed in claim 1, wherein the plastic bracket is adhesively attached to the metal top case.
4. A loudspeaker module according to claim 1, wherein the metal lower shell and the metal upper shell are joined by laser welding and/or adhesive bonding.
5. The speaker module as claimed in claim 1, wherein the plastic frame comprises a support body, and the support body is located inside the enclosure structure and abuts against the metal lower shell.
6. The speaker module as claimed in claim 1, further comprising an FPC, wherein the enclosure structure has a space-avoiding groove for avoiding a space of the FPC, one end of the FPC is electrically connected to the speaker unit, and the other end of the FPC passes through the space-avoiding groove and is exposed to the metal top case.
7. A sound generating device, comprising a mounting housing, wherein the mounting housing is provided with a mounting groove, and the sound generating device is characterized by further comprising the loudspeaker module set in any one of claims 1 to 6, and the loudspeaker module set is mounted in the mounting groove.
8. The sound generating apparatus as claimed in claim 7, wherein the speaker module is adhered to the mounting groove by a double-sided adhesive tape.
9. The sound generating apparatus of claim 7, wherein the speaker module is attached to the mounting groove by screws.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022891782.6U CN214154827U (en) | 2020-12-02 | 2020-12-02 | Loudspeaker module and sound generating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022891782.6U CN214154827U (en) | 2020-12-02 | 2020-12-02 | Loudspeaker module and sound generating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214154827U true CN214154827U (en) | 2021-09-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022891782.6U Active CN214154827U (en) | 2020-12-02 | 2020-12-02 | Loudspeaker module and sound generating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214154827U (en) |
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2020
- 2020-12-02 CN CN202022891782.6U patent/CN214154827U/en active Active
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