CN106851502B - Sound production device module - Google Patents
Sound production device module Download PDFInfo
- Publication number
- CN106851502B CN106851502B CN201710118356.9A CN201710118356A CN106851502B CN 106851502 B CN106851502 B CN 106851502B CN 201710118356 A CN201710118356 A CN 201710118356A CN 106851502 B CN106851502 B CN 106851502B
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- Prior art keywords
- sound generating
- single body
- sound
- bearing flange
- accommodating groove
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000004519 manufacturing process Methods 0.000 title description 2
- 239000003292 glue Substances 0.000 claims abstract description 15
- 238000003466 welding Methods 0.000 claims description 22
- 238000004026 adhesive bonding Methods 0.000 claims description 9
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 239000000155 melt Substances 0.000 claims 1
- 239000000178 monomer Substances 0.000 abstract description 31
- 239000011248 coating agent Substances 0.000 abstract description 9
- 238000000576 coating method Methods 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 6
- 238000010073 coating (rubber) Methods 0.000 abstract description 4
- 238000007789 sealing Methods 0.000 description 11
- 239000000853 adhesive Substances 0.000 description 5
- 230000001070 adhesive effect Effects 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/06—Loudspeakers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2400/00—Loudspeakers
- H04R2400/11—Aspects regarding the frame of loudspeaker transducers
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Casings For Electric Apparatus (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
The invention discloses a sounding device module, which comprises: the module casing has a side sound outlet, monomer holding tank has in the module casing, be provided with the bearing flange on the lateral wall of monomer holding tank, the single setting of sound generating mechanism is in the monomer holding tank, the outside part at the single top surface edge of sound generating mechanism is fixed the bottom of bearing flange, the inside part at the single top surface edge of sound generating mechanism with the lateral wall of bearing flange forms the rubber coating groove, the top of monomer holding tank has the opening, the opening is configured to can be through it to rubber coating groove department coating waterproof glue, the apron is configured to can install on the opening. One technical effect of the invention is to facilitate the coating operation of the waterproof glue.
Description
Technical Field
The invention belongs to the technical field of sounders, and particularly relates to a sounding device module.
Background
With the rapid development of the electronic industry, the acoustic generator is used as an important electrical component in consumer electronic products, and the requirements on the acoustic performance and reliability of the acoustic generator are continuously improved. The seals of existing sounders have drawbacks that result in limited reliability in use. For example, once liquid invades during the use of an electronic product, it is easy to damage devices in the electronic product. Taking the structure of the sounder device as an example, the sealing effect is poor, and once liquid invades, the voice coil of the sounder device may be short-circuited, and thus cannot work or be damaged.
In the prior art, in order to improve the sealing reliability of the sounder, the common waterproof design is to set up the top barricade around the sounder monomer, and the sounder monomer carries out the rubber coating bonding between top barricade and the sounder monomer top surface earlier with the module shell, later carries out the rubber coating bonding between monomer lateral wall and the module shell inner wall again. This design can improve the sealing effect of the sounder to some extent, however, this design also has drawbacks, mainly expressed by: 1. the sound holes of the product are blocked by the retaining wall, the sound outlet channel is not smooth, and the audio performance is affected; 2. the glue bonding situation after assembly is not manageable and the possibility of incomplete sealing still exists 3. The coating and coating inspection operations are inconvenient.
Therefore, there is a need for improved structures of sounder products, improved sealing reliability, and water leakage prevention.
Disclosure of Invention
It is an object of the present invention to provide a new solution for an improved sound generating device module.
According to a first aspect of the present invention, there is provided a sound emitting device module, a module housing, a sound emitting device unit and a cover plate, the module housing having a side sound emitting opening, the module housing having a unit accommodating groove therein, a support flange being provided on a side wall of the unit accommodating groove, the sound emitting device unit (2) being provided in the unit accommodating groove, an outer portion of a top surface edge of the sound emitting device unit being fixed to a bottom of the support flange, an inner portion of the top surface edge of the sound emitting device unit and the side wall of the support flange forming a glue coating groove, a top of the unit accommodating groove having an opening portion configured to be coated with a waterproof glue therethrough, the cover plate being configured to be mountable on the opening portion.
Optionally, the lower part of the side wall of the support flange has a downwardly sloping glue surface.
Optionally, the upper portion of the sidewall of the support flange has an upwardly inclined relief ramp.
Optionally, an outer portion of the top edge of the sound generating device unit is adhered and fixed to the bottom of the support flange.
Optionally, the sound generating device monomer includes monomer casing and vibrating diaphragm, the vibrating diaphragm includes ring portion and fixed part, fixed part is located ring portion's periphery, fixed part is fixed on the top surface of monomer casing, the peripheral part of the upper surface of fixed part with the bearing flange is fixed mutually.
Optionally, the module housing has a side sound emitting area that communicates with the side sound emitting opening, the side sound emitting area is located on a side of the single body accommodating groove, the side sound emitting area communicates with the single body accommodating groove, and one side of the accommodating groove, which is close to the side sound emitting area, is not provided with the bearing flange.
Optionally, an outer portion of the top edge of the sound generating device unit is ultrasonically welded to the bottom of the support flange.
Optionally, the lower end of the welding convex step is provided with a downward inclined surface.
Optionally, the module housing includes upper shell and inferior valve, upper shell and inferior valve lock form the monomer holding tank, the bearing flange sets up on the inner wall of upper shell.
The invention has the technical effect that the opening part at the top of the single accommodating groove is convenient for coating the waterproof glue on the sounding device module.
Other features of the present invention and its advantages will become apparent from the following detailed description of exemplary embodiments of the invention, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.
FIG. 1 is an exploded view of a sound emitting device module according to the present invention;
FIG. 2 is a side cross-sectional view of a sound emitting device module provided by the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 2;
FIG. 4 is an enlarged view of a portion of FIG. 2;
FIG. 5 is a schematic diagram illustrating an assembly of a module housing and a sound generator unit according to another embodiment of the present invention;
fig. 6 is a partial side cross-sectional view of the sound emitting device module of the embodiment of fig. 5 assembled.
Detailed Description
Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless it is specifically stated otherwise.
The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the invention, its application, or uses.
Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate.
In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of exemplary embodiments may have different values.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.
The invention provides a sound generating device module, which comprises a module shell 1 and a sound generating device monomer 2, wherein a monomer accommodating groove and a side sound outlet are formed in the module shell 1, and the sound generating device monomer 2 is arranged in the monomer accommodating groove as shown in fig. 1. The side wall of the single body accommodating groove is provided with a bearing flange 11, as shown in fig. 2, the lower surface of the bearing flange 11 is fixedly connected with the upper surface of the single body 2 of the sound generating device, so that the single body 2 of the sound generating device is fixed in the single body accommodating groove. The support flange 11 extends from the inner wall of the cell receiving groove to a small distance toward the middle of the cell receiving groove. The outer part of the top edge of the sound generating unit 2 is fixed at the bottom of the bearing flange 11. Preferably, the outer side part of the top surface edge of the sound generating device monomer can be fixed with the bottom of the bearing flange by ultrasonic welding, so that the reliability of fixed connection is improved.
The outer side part of the top surface edge of the sound generating device monomer is fixed at the bottom of the bearing flange. In particular, the inner part of the top surface edge of the sound generating device monomer and the side wall of the bearing flange form a gluing groove. During assembly, an adhesive is coated in the glue coating groove, and the sound generating device unit 2 and the bearing flange 11 are bonded and sealed. In particular, the top of the monomer accommodation groove is provided with an opening part, and when the gluing operation and the monitoring operation are performed, an operation device can be extended to the position of the gluing groove through the opening part, and waterproof glue is coated or the sealing condition of the waterproof glue is monitored. Further, the sound generating device module further comprises a cover plate. The cover plate may be mounted on the opening portion. The cover plate may be a metal plate or a plate structure made of other materials.
Optionally, the lower region of the side wall of the support flange 11 has a downwardly sloping glue surface 111, as shown in fig. 2. Because of the included angle between the two surfaces, the adhesive can be exposed during coating, and the coating dosage and sealing can be conveniently controlled and detected. For example, the adhesive may be allowed to occupy the entire space in the glue tank to enhance the sealing and securing effect.
Optionally, the upper part of the side wall of the support flange 11 may also have an upwardly inclined relief ramp, as shown in fig. 2. The relief bevel reduces the space occupied by the support flange 11. When the gluing operation is performed, the dispensing head can be avoided, and the dispensing head can extend to the gluing groove conveniently. And during detection operation, the avoidance inclined plane can also avoid the monitoring device, so that the detection of the waterproof glue is convenient.
Optionally, the outer part of the top surface edge of the sound generating device monomer can be adhered and fixed with the bottom of the bearing flange, so that the reliability of fixation is improved.
Optionally, the sound generating device unit 2 may include a unit housing and a diaphragm 21, where the diaphragm 21 includes a folded ring portion and a fixing portion, the folded ring portion is in a folded ring structure, and the fixing portion is located at the periphery of the folded ring portion. As shown in fig. 1 and 2, the fixing portion may be fixed on the top surface of the unit housing, and the diaphragm 21 is located on the entire upper surface of the sound-generating unit 2, and the fixing portion is located at an edge. When the sound generating unit 2 is mounted on the support flange 11, the diaphragm 21 is directly in contact with the lower surface of the support flange 11. In the embodiment shown in fig. 2 and 3, the peripheral portion of the upper surface of the fastening part is fastened to the support flange 11, and the support flange 11 covers only the edge region of the upper surface of the fastening part. This design allows sufficient space for the glue groove to accommodate sufficient adhesive between the glue surface 111 and the fixing portion. Because the gluing surface is a certain distance from the folded ring part, the coated adhesive can not contact the folded ring part, and the vibration performance of the folded ring part is not influenced.
The module case 1 may have a side sound emitting area 12 communicating with the side sound emitting port, as shown in fig. 2, and sound generated from the sound generating unit cell 2 is transmitted to the external space through the side sound emitting area 12. The side sound emitting area 12 is located at the side surface of the single body accommodating groove, and the side sound emitting area 12 is communicated with the single body accommodating groove from the side surface of the single body accommodating groove. Preferably, as shown in fig. 2 and 4, no support flange 11 is provided on the single body receiving groove on the side where the single body receiving groove communicates with the side sound emitting area 12. The support flange 11 may obstruct the path of sound to the side sound emitting area 12, and the support flange 11 may not be provided on the side of the single receiving groove adjacent to the side sound emitting area 12 or communicating with the side sound emitting area 12 for smooth sound transmission. Other areas may be provided with a support flange to ensure as much as possible the reliability of the sound emitting unit arrangement in the unit receiving slot.
Taking an embodiment of the single accommodating groove in a rectangular cavity as an example, the single accommodating groove is formed by encircling four straight side walls which are basically vertical to each other, and the side sound emitting area is communicated with the single accommodating groove from one straight side wall. I.e. the side sound emitting area is located in the area outside the side wall of the strip of the cell receiving groove. Correspondingly, the single accommodating groove is not provided with a bearing flange on the straight side wall, and the other three straight side walls can be provided with bearing flanges. The whole sound generating device monomer is also rectangular structure, and three edges of the top surface of the sound generating device monomer correspond to three straight-sided side walls respectively and are propped against the bottom of the bearing flange, and sound generated during operation of the sound generating device monomer is transmitted from one side edge which is not contacted with the bearing flange to the side sound generating region. The invention does not limit the shapes of the single body and the single body accommodating groove of the sound generating device, and can prevent the bearing flange from blocking the communication between the single body accommodating groove and the sound generating area according to specific product conditions.
Particularly, on the inner wall of the monomer holding groove, below the bearing flange, a welding convex step 13 may be further provided, as shown in fig. 5 and 6, where the welding convex step 13 is used to be fixedly connected with the sounding device monomer 2 in a hot-melting manner, so as to improve the fixing reliability of the sounding device monomer 2 in the monomer holding groove, and also can assist in improving the sealing effect between the sounding device monomer 2 and the side wall of the monomer holding groove. Taking the example that the sounding device unit 2 has a single body housing, when the sounding device unit 2 is assembled in the single body accommodating groove, the welding convex step 13 can be fixedly connected with the outer surface of the single body housing in a hot melting manner by ultrasonic welding, as shown in fig. 6. The partial region of the welding bead 13 and/or the partial region of the individual housing can be melted during the ultrasonic welding process, so that the sound-generating device individual 2 is fixedly connected to the bottom of the support flange 11. In other embodiments, the sound generating unit may not include a complete unit housing, but may adopt a partial shell supporting structure, and the invention is not limited thereto.
Preferably, as shown in fig. 5, the height of the welding step 13 in the single-body receiving groove is located below the support flange 11. The support flange 11 and the welding flange 13 both play a role in fixedly connecting and improving the sealing property. The welding convex steps 13 are arranged in the area below the bearing flange 11, so that stable fixed connection and sealing can be formed in two areas between the sounding device single body 2 and the single body accommodating groove, and the reliability of products is improved. In particular, in the embodiment in which the sound generating device module comprises the side sound emitting region 12, the side of the single body receiving groove communicating with the side sound emitting region 12 is not provided with the support flange 11, but may be provided with the welding boss 13, and the relative height of the welding boss 13 is below the support flange 11, so that the welding boss 13 is prevented from affecting the propagation of sound.
Alternatively, as shown in fig. 5, the lower end of the welding boss 13 may have a downward inclined surface configured to guide the sound emitting device unit 2 to be assembled and pressed upward from below the unit accommodating groove. The side wall of the sounding device monomer 2 can be provided with an inclined plane matched with the inclined plane, and the two inclined planes can be abutted against each other during assembly, so that the two inclined planes can be better in hot melt fixed connection during ultrasonic welding.
Optionally, the module housing 1 may include an upper shell and a lower shell, as shown in fig. 1, where the upper shell and the lower shell are buckled to form a single accommodating groove, the bearing flange 11 and the welding convex step 13 may be disposed on an inner wall of the upper shell, and the lower shell seals a bottom surface of the single accommodating groove, and may be provided with a heat dissipation steel sheet and other structures thereon.
While certain specific embodiments of the invention have been described in detail by way of example, it will be appreciated by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.
Claims (8)
1. A sound generating device module, comprising: the module comprises a module shell (1), a sounding device single body (2) and a cover plate, wherein the module shell (1) is provided with a side sound outlet, the module shell (1) is internally provided with a single body accommodating groove, the side wall of the single body accommodating groove is provided with a bearing flange (11), the sounding device single body (2) is arranged in the single body accommodating groove, the outer part of the top surface edge of the sounding device single body (2) is fixed at the bottom of the bearing flange (11), the inner part of the top surface edge of the sounding device single body (2) and the side wall of the bearing flange (11) form a gluing groove, the top of the single body accommodating groove is provided with an opening, the opening is configured to be coated with waterproof glue through the opening, and the cover plate is configured to be installed on the opening; the lower part of the side wall of the bearing flange (11) is provided with a downwards inclined gluing surface (111), and the upper part of the side wall of the bearing flange (11) is provided with an upwards inclined avoidance inclined surface.
2. Sound-emitting device module according to claim 1, characterized in that the outer part of the top edge of the sound-emitting device unit (2) is adhesively secured to the bottom of the support flange (11).
3. The sound generating device module according to claim 1, wherein the sound generating device unit (2) comprises a unit housing and a vibrating diaphragm (21), the vibrating diaphragm (21) comprises a folded ring portion and a fixing portion, the fixing portion is located at the periphery of the folded ring portion, the fixing portion is fixed on the top surface of the unit housing, and the peripheral portion of the upper surface of the fixing portion is fixed with the support flange (11).
4. The sound generating device module according to claim 1, characterized in that the module housing (1) has a side sound generating region (12) communicating with a side sound generating opening, the side sound generating region (12) being located at a side of the individual receiving groove, the side sound generating region (12) communicating with the individual receiving groove, the receiving groove being provided with no support flange (11) on a side thereof adjacent to the side sound generating region (12).
5. Sound-emitting device module according to claim 1, characterized in that the outer part of the top edge of the sound-emitting device unit (2) is ultrasonically welded to the bottom of the support flange (11).
6. The sound generating device module according to claim 1, characterized in that a welding protruding step (13) is arranged on the inner wall of the single body accommodating groove and below the bearing flange (11), and the welding protruding step (13) is configured such that when the sound generating device single body (2) is assembled in the single body accommodating groove by ultrasonic welding, the welding protruding step (13) melts to enable the sound generating device single body (2) to be fixedly connected with the bottom of the bearing flange (11).
7. Sound generating device module according to claim 6, characterized in that the lower end of the welding boss (13) has a downward sloping ramp.
8. The sound generating device module according to claim 1, wherein the module housing (1) comprises an upper shell and a lower shell, the upper shell and the lower shell are buckled to form the single body accommodating groove, and the bearing flange (11) is arranged on the inner wall of the upper shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710118356.9A CN106851502B (en) | 2017-03-01 | 2017-03-01 | Sound production device module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710118356.9A CN106851502B (en) | 2017-03-01 | 2017-03-01 | Sound production device module |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106851502A CN106851502A (en) | 2017-06-13 |
| CN106851502B true CN106851502B (en) | 2024-03-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710118356.9A Active CN106851502B (en) | 2017-03-01 | 2017-03-01 | Sound production device module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106851502B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108772262A (en) * | 2018-08-27 | 2018-11-09 | 广东华辉煌光电科技有限公司 | A kind of porous pit filament cover board |
| CN110933563B (en) * | 2019-11-22 | 2021-02-19 | 歌尔股份有限公司 | Sound generating device module and electronic product |
| CN110856088A (en) * | 2019-12-03 | 2020-02-28 | 瑞声科技(新加坡)有限公司 | Loudspeaker and assembling method thereof |
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| CN205092959U (en) * | 2015-11-04 | 2016-03-16 | 歌尔声学股份有限公司 | Loudspeaker module |
| CN205545923U (en) * | 2016-03-10 | 2016-08-31 | 深圳市音沃仕科技有限公司 | Loudspeaker module |
| CN205793305U (en) * | 2016-05-31 | 2016-12-07 | 歌尔股份有限公司 | A kind of speaker module |
| CN205847576U (en) * | 2016-07-20 | 2016-12-28 | 瑞声科技(新加坡)有限公司 | Speaker module |
| CN205961443U (en) * | 2016-07-20 | 2017-02-15 | 深圳市信维通信股份有限公司 | High performance speakerbox |
| CN205961440U (en) * | 2016-07-20 | 2017-02-15 | 瑞声科技(新加坡)有限公司 | Loudspeaker module group |
| CN206596153U (en) * | 2017-03-01 | 2017-10-27 | 歌尔股份有限公司 | Sound-producing device module |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104105038B (en) * | 2014-07-17 | 2017-09-22 | 歌尔股份有限公司 | The assemble method of loudspeaker module and the loudspeaker module |
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2017
- 2017-03-01 CN CN201710118356.9A patent/CN106851502B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203618117U (en) * | 2013-12-11 | 2014-05-28 | 歌尔声学股份有限公司 | Loudspeaker module |
| CN205092959U (en) * | 2015-11-04 | 2016-03-16 | 歌尔声学股份有限公司 | Loudspeaker module |
| CN205545923U (en) * | 2016-03-10 | 2016-08-31 | 深圳市音沃仕科技有限公司 | Loudspeaker module |
| CN205793305U (en) * | 2016-05-31 | 2016-12-07 | 歌尔股份有限公司 | A kind of speaker module |
| CN205847576U (en) * | 2016-07-20 | 2016-12-28 | 瑞声科技(新加坡)有限公司 | Speaker module |
| CN205961443U (en) * | 2016-07-20 | 2017-02-15 | 深圳市信维通信股份有限公司 | High performance speakerbox |
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| CN206596153U (en) * | 2017-03-01 | 2017-10-27 | 歌尔股份有限公司 | Sound-producing device module |
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| Publication number | Publication date |
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| CN106851502A (en) | 2017-06-13 |
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