CN107509145B - Sound generating device module and manufacturing method thereof - Google Patents
Sound generating device module and manufacturing method thereof Download PDFInfo
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- CN107509145B CN107509145B CN201710757896.1A CN201710757896A CN107509145B CN 107509145 B CN107509145 B CN 107509145B CN 201710757896 A CN201710757896 A CN 201710757896A CN 107509145 B CN107509145 B CN 107509145B
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 18
- 239000011358 absorbing material Substances 0.000 claims abstract description 88
- 238000007789 sealing Methods 0.000 claims abstract description 16
- 230000000903 blocking effect Effects 0.000 claims description 27
- 238000009423 ventilation Methods 0.000 claims description 24
- 238000005192 partition Methods 0.000 claims description 13
- 238000005086 pumping Methods 0.000 claims description 9
- 230000003068 static effect Effects 0.000 claims description 7
- 230000005611 electricity Effects 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 4
- 230000004888 barrier function Effects 0.000 description 15
- 238000000034 method Methods 0.000 description 15
- 238000000605 extraction Methods 0.000 description 8
- 239000002245 particle Substances 0.000 description 7
- 238000013461 design Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000005429 filling process Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000026683 transduction Effects 0.000 description 2
- 238000010361 transduction Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
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- 239000012943 hotmelt Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 230000035699 permeability Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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- 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
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- 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
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
- Building Environments (AREA)
Abstract
The invention discloses a sound generating device module and a manufacturing method thereof. The sound generating device module comprises a module shell, wherein a rear cavity is formed in the module shell, sound absorbing materials are filled in the rear cavity, a suction hole and a filling hole are formed in the rear cavity, the suction hole and the filling hole are communicated with the outside, the module shell can be used for sucking air outwards through the suction hole, the sound absorbing materials are filled in the rear cavity through the filling hole, sealing components are respectively arranged on the suction hole and the filling hole, and the sealing components seal the suction hole and the filling hole. The invention has the technical effect of improving the space utilization rate in the sound generating device module.
Description
Technical Field
The invention belongs to the technical field of acoustic-electric transduction, and particularly relates to a sound generating device module and a manufacturing method of the sound generating device module.
Background
The sound generating device module belongs to sound-electricity transduction equipment, and can generate sound through the conversion of electric signals. At present, the speaker is widely applied to electronic equipment, such as mobile electronic terminals of mobile phones, interphones, notebooks and the like. Along with the development of market consumption, product design and the progress of production and processing technology, electronic equipment is miniaturized and light and thin, and the sound generating device module is required to be miniaturized and adapt to the requirements of electronic products.
In the prior art, sound absorbing particles are filled in the rear cavity of the sound generating device module as an effective means for equivalently increasing the volume of the rear cavity, thereby reducing the F0 product and improving the tone quality, and the sound absorbing particles are increasingly applied to modern sound generating device modules. In order to meet the requirements of electronic products, along with miniaturization, light weight and thinning of the electronic products, the internal space structure of the products is more and more complex, the slit area is more and more, the problem of how to effectively utilize the internal space of the rear cavity is more and more remarkable, and the existing filling mode adopts filling holes for filling, but the actual maximum filling amount only accounts for 70% -85% of the theoretical maximum filling amount especially when the rear cavity is more and the slit area is more. The rear cavity space utilization rate is low, F0 of the product cannot be reduced to the maximum extent, and the tone quality is improved.
Accordingly, there is a need for an improved sound emitting device module.
Disclosure of Invention
An object of the present invention is to provide a new technical solution for a sound generating device module.
According to a first aspect of the present invention, there is provided a sound generating device module, including a module housing having a rear cavity therein filled with a sound absorbing material; the back cavity is provided with an air suction hole and a filling hole which are communicated with the outside, the module shell is configured to be capable of sucking air outwards through the air suction hole, sound absorbing materials are filled in the back cavity through the filling hole, the air suction hole and the filling hole are respectively provided with a sealing component, and the sealing components seal the air suction hole and the filling hole.
Optionally, a ventilation blocking component is arranged at the air suction hole.
Optionally, the breathable barrier component is a breathable mesh or wire mesh.
According to another aspect of the present invention, there is provided a method for manufacturing a sound emitting device module, including:
providing a module shell of the sound generating device module, wherein a rear cavity is formed in the module shell;
the position of the module shell, which forms the rear cavity, is provided with an air suction hole and a filling hole, so that the rear cavity is communicated with the outside;
continuously pumping air out of the module shell through the air pumping holes, and filling sound absorbing materials into the rear cavity through the filling holes;
and after the sound absorbing material is filled, sealing the air suction holes and the filling holes.
Optionally, the method further comprises:
and the air exhaust hole is provided with an air-permeable blocking component, or/and the air exhaust hole is matched with the air exhaust device to exhaust air outwards, and one end of the air exhaust pipe corresponds to the air exhaust hole and is provided with the air-permeable blocking component.
Optionally, the method further comprises:
at least two through holes with the same shape and size are formed in the shell corresponding to the rear cavity, and the through holes are respectively used as the air suction holes or the filling holes.
Optionally, the method further comprises:
the sound absorbing material is subjected to static electricity removal treatment.
Optionally, the method further comprises:
a partition wall is arranged in the rear cavity and divides a filling area, the filling hole is communicated with the filling area, and the partition wall is provided with a ventilation part.
Optionally, the method further comprises:
and the partition wall is provided with a ventilation blocking part which is communicated with the filling area and the rear cavity, and the ventilation blocking part is provided with a micro ventilation part.
Optionally, the method further comprises:
and the rear cavity is internally provided with an air-permeable blocking part, the air-permeable blocking part divides a filling area in the rear cavity, and the filling hole is communicated with the filling area.
The inventor of the present invention has found that, in the prior art, it is not thought how to fill more sound absorbing material on the premise that the space structure in the sound generating device module is fixed. The technical task to be achieved or the technical problem to be solved by the present invention is therefore a new technical solution, which has never been conceived or not yet been contemplated by the person skilled in the art.
The invention has the technical effect of improving the space utilization rate in the sound generating 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 a schematic exploded view of a structure according to an embodiment of the present invention.
Fig. 2 is a schematic top view of an embodiment of the present invention.
Fig. 3 is a schematic cross-sectional view of an embodiment of the present invention.
Fig. 4 is a schematic structural diagram of an inner rear cavity of a sound generating device module according to another embodiment of the present invention.
In the figure: 1 module shell, 11 upper cover, 12 back cavity, 13 air vent, 14 filling hole, 15 sealing component, 16 ventilation barrier component, 17 back cavity correspondent portion, 2 sound absorbing material.
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 can be filled with more sound absorbing materials under the condition of a certain internal space structure, so that the space utilization rate in the sound generating device module is improved, the F0 of a product is reduced to the maximum extent, and the sound quality is improved. The sound generating device module comprises a module shell and sound absorbing materials, wherein a rear cavity is formed in the module shell, the sound absorbing materials are arranged in the rear cavity, a suction hole and a filling hole are formed in the rear cavity and communicated with the outside, and sealing components are respectively arranged on the suction hole and the filling hole.
In one embodiment shown in fig. 1-3, the module housing 1 includes an upper cover 11. The module case 1 has a rear chamber 12 therein, and the rear chamber 12 has an opening communicating with the outside at the upper surface of the module case 1. Through the opening, the sound absorbing material can be filled into the rear cavity 12, and the upper cover 11 can be buckled on the upper surface of the module housing 1 to close the opening of the rear cavity 12. The back cavity 12 cannot be filled with the sound absorbing material when the back cavity 12 is filled with the sound absorbing material before the upper cover 11 is buckled, otherwise, the buckling of the upper cover 11 is blocked, the production efficiency is affected, or the sealing of the module housing 1 is not tight, and the acoustic performance of the sound generating device module is affected.
The upper cover 11 has a rear cavity corresponding portion 17 corresponding to the rear cavity 12. The rear cavity corresponding portion 17 is provided with a filling hole 14, and the upper cover 11 is buckled on the upper surface of the module housing 1, so that the rear cavity 12 can be communicated with the outside. Then, the sound absorbing material is filled into the rear cavity 12 through the filling hole 14, at this time, the inner space of the rear cavity 12 is fixed, and more sound absorbing material can be filled relatively, so that the space utilization rate of the rear cavity 12 is improved. When the internal space structure of the rear cavity 12 is complicated and the slit area is large, vibration assist can be performed to increase the filling rate, but there is a region where the sound absorbing material is difficult to reach, and the internal space of the rear cavity 12 cannot be fully utilized.
Further, the rear cavity corresponding portion 17 is provided with an air suction hole 13, and the rear cavity 12 can communicate with the outside through the air suction hole 13. And continuously pumping air to the outside through the pumping holes 13 to gather the sound absorbing material under the suction force, and then continuously filling the sound absorbing material into the rear cavity 12 through the filling holes 14. And more sound absorbing material can be filled relatively, so that the internal space rate of the rear cavity 12 can be further improved.
The upper cover 11 is further provided with sealing members 15 corresponding to the air extraction holes 13 and the filling holes 14, respectively, for sealing the air extraction holes 13 and the filling holes 14 after the sound absorbing material is filled, so as to prevent the sound and the sound absorbing material from leaking out and influence the acoustic performance of the sound generating device module.
Under the condition that the internal space of the rear cavity is regular in structure, the arrangement of the air suction holes can further improve the space utilization rate of the rear cavity. The air is pumped outwards through the air pumping holes, so that a negative pressure environment is formed in the rear cavity, air enters from the filling holes, and the sound absorbing material is attracted and compressed under the action of negative pressure. The sound-absorbing materials are more compact, and compared with the normal pressure environment, the compressed sound-absorbing materials have smaller volume, so that more sound-absorbing materials can be filled relatively on the premise that the inner space of the rear cavity is unchanged. That is, the space utilization in the sound generating device module is improved. Further, the acoustic performance of the sound generating device module can be improved. The filling amount of sound absorption particles can be nearly maximized, the space utilization rate of the rear cavity is improved, the F0 of the product is effectively reduced, and the tone quality is improved. And the design is simple, and the practicality is strong.
When the structure of the inner space of the rear cavity is complex, the air suction holes are preferably arranged in the area where the sound absorbing material is difficult to reach. In this way, when the air suction operation is performed from the air suction hole, the sound absorbing material can be more effectively sucked to the position with a complicated structure. The sound absorbing material can move to various areas of the rear cavity, such as slits, corners in the rear cavity, under suction.
In other embodiments of the present invention, the filling process may be performed simultaneously, or may be performed by continuously exhausting air from the outside through the air exhaust hole and filling the sound absorbing material into the rear cavity through the filling hole. The above-described filling process is merely illustrative and not limiting of the invention.
In other embodiments of the present invention, the sound absorbing material may be filled by combining the air suction hole with the vibration assistance, so as to improve the space utilization in the sound generating device module. For example, when the internal space structure of the rear cavity is complex, the air suction holes are correspondingly arranged on the area where the sound-absorbing material is difficult to reach, and the sound-absorbing material is filled in an alternating manner by gravity or vibration, so that the sound-absorbing material is filled more uniformly and more tightly.
In other embodiments of the present invention, the rear cavity counterpart 17 shown in fig. 1 is also detachable with respect to the upper cover 11. For example, the upper cover 11 is first fastened, and the sound absorbing material is filled into the rear cavity 12 through an opening larger than the filling hole, so that the filling efficiency is improved. Then, the rear cavity corresponding portion 17 is covered, air is extracted to the outside through the air extraction hole 13, and the sound absorbing material is filled into the rear cavity 12 through the filling hole 14, and further more sound absorbing material is filled.
In other embodiments of the present invention, the air suction hole and the filling hole may be disposed at any side of the module housing, so long as they can communicate with the rear cavity in the module housing, and the function of exhausting air through the air suction hole and filling the sound absorbing material into the rear cavity through the filling hole is achieved.
Optionally, a ventilation blocking component is arranged at the air suction hole. The breathable barrier member may allow air to pass through and prevent sound absorbing material from passing through, and may isolate it. As shown in fig. 1, the ventilation blocking member 16 is provided at the air suction hole 13, and when air is sucked from the rear cavity 12 to the outside through the air suction hole 13, the sound absorbing particles in the rear cavity 12 can be prevented from being sucked through the air suction hole 13, and the filling efficiency is prevented from being affected. It will be appreciated by those skilled in the art that the breathable barrier is not an essential feature of the present invention, but is a preferred embodiment of the present invention, for example, in other embodiments, the breathable barrier may not be provided if the bleed holes are smaller than the minimum inner diameter of the sound absorbing material. Still further, the breathable barrier member may be integrally formed with the module housing or may be separate as shown in FIG. 1. For example, it is also possible that the sealing member corresponds to the suction area consisting of a plurality of suction holes smaller than the minimum inner diameter of the sound absorbing material, and thus the above-mentioned technical solution is only one preferred mode of the present invention and is not a limitation of the present invention.
Preferably, the breathable barrier component is a breathable mesh or wire mesh. The novel air-permeable and waterproof module has the advantages that good air permeability can be met, particle size is small, the granular sound-absorbing materials can be prevented from passing through, good air-permeable barrier performance can be provided, the novel air-permeable and waterproof module is applicable to the use of various sound-absorbing materials with different particle sizes, the application range is wider, the thickness of air-permeable mesh cloth or metal wire mesh can be small, occupation of space in a module shell is reduced, and the space utilization rate in the module shell is improved.
The invention also provides a manufacturing method of the sound generating device module, which comprises the following steps:
providing a module shell of the sound generating device module, wherein a rear cavity is formed in the module shell;
the position of the module shell, which forms the rear cavity, is provided with an air suction hole and a filling hole, so that the rear cavity is communicated with the outside;
continuously pumping air out of the module shell through the air pumping holes, and filling sound absorbing materials into the rear cavity through the filling holes;
and after the sound absorbing material is filled, sealing the air suction holes and the filling holes.
The utilization rate of the internal space of the sound generating device module manufactured by the method is high. The air suction hole is arranged to suck air outwards, so that a negative pressure environment is formed in the rear cavity, air enters from the filling hole, the sound-absorbing materials are compressed under the action of negative pressure, the sound-absorbing materials are more tightly arranged, the volume of the compressed sound-absorbing materials is smaller relative to the normal pressure environment, and more sound-absorbing materials can be filled relatively on the premise that the inner space of the rear cavity is unchanged. Therefore, the filling amount of the sound absorbing material in the sound generating device module can be increased at a certain time in the internal space structure, the F0 of the product is reduced to the maximum extent, and the sound quality is improved.
In a preferred embodiment, particularly when the structure of the inner space of the rear cavity is complex, there is a region where the sound absorbing material is difficult to reach by the conventional filling means, and the air extraction holes are preferably arranged in the region where the sound absorbing material is difficult to reach, so that the region is filled with the sound absorbing material, more sound absorbing material can be filled in the rear cavity, and the inner space utilization rate of the sound generating device module is improved.
In other embodiments of the present invention, the sound absorbing material may be filled in a manner of combining the external air suction of the air suction hole with the vibration assistance, so as to improve the space utilization rate in the sound generating device module. For example, when the internal space structure of the rear cavity is complex, the air suction holes are correspondingly arranged on the area where the sound-absorbing material is difficult to reach by the conventional filling means, and the sound-absorbing material is filled in an alternating manner by the aid of air suction and vibration, so that the sound-absorbing material is filled more uniformly and more tightly. Therefore, the manufacturing method of the present invention can be used in combination with other manufacturing methods, and the present invention is not limited by comparison.
Optionally, the method further comprises:
and the air exhaust hole is provided with an air-permeable blocking component, or/and the air exhaust hole is matched with the air exhaust device to exhaust air outwards, and one end of the air exhaust pipe corresponds to the air exhaust hole and is provided with the air-permeable blocking component.
The ventilation blocking component can allow air to pass through and prevent sound absorbing materials from passing through, and can isolate the sound absorbing materials. As shown in fig. 1, the ventilation blocking member 16 is provided at the air suction hole 13, and when air is sucked from the rear cavity 12 to the outside through the air suction hole 13, the sound absorbing particles in the rear cavity 12 can be prevented from being sucked through the air suction hole 13, and the filling efficiency is prevented from being affected. It will be appreciated by those skilled in the art that the arrangement of the ventilation barrier is only one preferred embodiment of the present invention, for example, in other embodiments, the diameter of the air extraction holes may be smaller than the minimum inner diameter of the sound absorbing material, and the ventilation barrier may be omitted, and further, the ventilation barrier may be integrally formed with the module housing, or may be separate as shown in fig. 1, for example, an air extraction area formed by a plurality of air extraction holes smaller than the minimum inner diameter of the sound absorbing material, and the sealing member may correspond to the air extraction area, so that the above technical solution is only one preferred embodiment of the present invention and is not limiting to the present invention.
Optionally, the method further comprises:
at least two through holes with the same shape and size are formed in the shell corresponding to the rear cavity, and the through holes are respectively used as the air suction holes or the filling holes.
The shape and the size of the air suction hole and the filling hole are the same. It may be convenient to make the bleed holes and the loading holes interchangeable in certain situations. For example, in a specific embodiment, the structure of the inner space of the rear cavity is complex, the air suction hole is arranged in a region where the sound-absorbing material is difficult to reach, the air suction pipe matched with the air suction hole is provided with an air-permeable blocking component, and in an extreme case, the air suction is difficult to enable the sound-absorbing material to reach the region, then at the moment, the air suction hole and the filling hole are functionally interchanged, the filling hole is used for air suction, the air suction hole is filled with the sound-absorbing material, and therefore the space utilization rate is improved. This is merely one embodiment of the present invention and is not meant to limit the present invention. In practical production application, the sealing parts of the air suction hole and the filling hole can be universal, so that the production management of enterprises is facilitated, and the design cost is reduced.
Optionally, the method further comprises:
the sound absorbing material is subjected to static electricity removal treatment.
The sound absorbing material may generate static electricity in some cases. Static can make between the sound absorbing material attracts each other, and the phenomenon of embracing the group appears, is difficult to evenly distributed in the comparatively complicated back intracavity of structure, consequently, through removing static processing, obtains removing static sound absorbing material, is favorable to improving sound absorbing material's loading, improves the space utilization of sound generating mechanism module.
Optionally, the method further comprises:
a partition wall is arranged in the rear cavity and divides a filling area, the filling hole is communicated with the filling area, and the partition wall is provided with a ventilation part.
In some embodiments, the rear cavity may be provided with a partition wall therein, which divides a partial area space in the rear cavity to form a filling area for filling the sound absorbing material, and the sound absorbing material is filled only in the filling area. The filling hole is communicated with the filling area for filling the sound absorbing material. The partition wall is also required to have a ventilation part which allows sound to pass therethrough and prevents sound absorbing material from passing therethrough, for example, the partition wall is provided with a ventilation part composed of a plurality of holes smaller than the minimum inner diameter of the sound absorbing material; the ventilation part is communicated with the inside of the rear cavity. The breathable portion is preferably a breathable barrier member provided on the partition wall, which may also be a breathable mesh or wire mesh. Such as a gas permeable mesh or wire mesh attached to the dividing wall by means of bonding or hot melt welding.
Optionally, the method further comprises:
and the rear cavity is internally provided with an air-permeable blocking part, the air-permeable blocking part divides a filling area in the rear cavity, and the filling hole is communicated with the filling area.
In some embodiments, it may be desirable to provide a loading zone for loading sound absorbing material, which may be divided by an air permeable barrier, without or without completely loading the interior of the rear cavity. In the embodiment shown in fig. 4, the filling area is surrounded by a ventilation blocking component 16, and a part of area space is divided from the rear cavity 12 and is used for accommodating and filling the sound absorbing material 2, the ventilation blocking component 16 is formed by a wire mesh, and the wire mesh can provide good ventilation and blocking performance and has certain rigidity, and can be molded according to the internal structure of the rear cavity; the filling hole 14 communicates with the filling area for filling the sound absorbing material 2, and a sealing member 15 is provided on the filling hole 14 to seal it.
In embodiments having a loading zone, the gas vent may or may not be in communication with the loading zone. Those skilled in the art can make settings as desired. For example, the filling hole is not communicated with the filling area, the air suction is performed through the air suction hole, and the air suction effect on the sound absorbing material in the filling area can be realized through the air permeable part arranged on the partition wall or the air permeable blocking component surrounding the filling area. In the embodiment shown in fig. 4, the air suction hole 13 is not in communication with the filling area, and air suction is performed through the air suction hole 13. Since the filling area is surrounded by the air-permeable barrier 15, in this case, the air flow can flow out from the filling area in all directions except for the direction in which the filling holes 14 are located, and the compression effect of the negative pressure on the sound-absorbing material 2 is all-directional, so that the sound-absorbing material 2 can be pressed in the direction of the air flow toward the air-permeable barrier 15. The sound absorbing material 2 in the filling area can be combined more tightly, so that the sound absorbing material 2 which can be filled is more under the same volume, and the space utilization rate is further improved.
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 (7)
1. The sound generating device module is characterized by comprising a module shell, wherein a rear cavity is formed in the module shell, and sound absorbing materials are filled in the rear cavity; the rear cavity is provided with an air suction hole and a filling hole which are communicated with the outside, the module shell is configured to be capable of sucking air outwards through the air suction hole, sound absorbing materials are filled in the rear cavity through the filling hole, and sealing parts are respectively arranged on the air suction hole and the filling hole and seal the air suction hole and the filling hole;
the rear cavity is internally provided with an air-permeable blocking component, the air-permeable blocking component divides a filling area in the rear cavity, and the filling hole is communicated with the filling area;
the air exhaust hole is provided with an air-permeable blocking component which is an air-permeable mesh or a metal wire mesh.
2. A method of making a sound emitting device module according to claim 1, comprising:
providing a module shell of the sound generating device module, wherein a rear cavity is formed in the module shell;
the position of the module shell, which forms the rear cavity, is provided with an air suction hole and a filling hole, so that the rear cavity is communicated with the outside;
continuously pumping air out of the module shell through the air pumping holes, and filling sound absorbing materials into the rear cavity through the filling holes.
3. The method of manufacturing a sound emitting device module of claim 2, further comprising:
and the air exhaust hole is provided with an air-permeable blocking component, or/and the air exhaust hole is matched with the air exhaust device to exhaust air outwards, and one end of the air exhaust pipe corresponds to the air exhaust hole and is provided with the air-permeable blocking component.
4. The method of manufacturing a sound emitting device module of claim 3, further comprising:
at least two through holes with the same shape and size are formed in the shell corresponding to the rear cavity, and the through holes are respectively used as the air suction holes or the filling holes.
5. The method of manufacturing a sound emitting device module of claim 3, further comprising:
the sound absorbing material is subjected to static electricity removal treatment.
6. The method of manufacturing a sound emitting device module of claim 3, further comprising:
a partition wall is arranged in the rear cavity and divides a filling area, the filling hole is communicated with the filling area, and the partition wall is provided with a ventilation part.
7. The method of manufacturing a sound emitting device module of claim 6, further comprising:
and the partition wall is provided with a ventilation blocking part which is communicated with the filling area and the rear cavity, and the ventilation blocking part is provided with a micro ventilation part.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710757896.1A CN107509145B (en) | 2017-08-29 | 2017-08-29 | Sound generating device module and manufacturing method thereof |
| PCT/CN2017/102695 WO2019041402A1 (en) | 2017-08-29 | 2017-09-21 | Sound-producing device module and manufacturing method for sound-producing device module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710757896.1A CN107509145B (en) | 2017-08-29 | 2017-08-29 | Sound generating device module and manufacturing method thereof |
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| Publication Number | Publication Date |
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| CN107509145A CN107509145A (en) | 2017-12-22 |
| CN107509145B true CN107509145B (en) | 2023-12-22 |
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| CN201710757896.1A Active CN107509145B (en) | 2017-08-29 | 2017-08-29 | Sound generating device module and manufacturing method thereof |
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| WO (1) | WO2019041402A1 (en) |
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| CN113163306A (en) * | 2020-12-31 | 2021-07-23 | 歌尔股份有限公司 | Loudspeaker module |
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| CN207200971U (en) * | 2017-08-29 | 2018-04-06 | 歌尔股份有限公司 | A kind of sound-producing device module |
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| CN204948357U (en) * | 2015-08-08 | 2016-01-06 | 歌尔声学股份有限公司 | Loud speaker module |
| CN105142046A (en) * | 2015-08-11 | 2015-12-09 | 瑞声光电科技(常州)有限公司 | Sound production device and method for making sound production device |
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| WO2015064121A1 (en) * | 2013-11-01 | 2015-05-07 | サーモス株式会社 | Speaker, and speaker housing |
| CN104038855A (en) * | 2014-06-04 | 2014-09-10 | 瑞声光电科技(常州)有限公司 | Electric acoustic device and assembly method for same |
| WO2016165318A1 (en) * | 2015-04-13 | 2016-10-20 | 歌尔声学股份有限公司 | Speaker module |
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| JP3204067U (en) * | 2016-02-23 | 2016-05-12 | 知久 島津 | Speaker system |
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| CN206302557U (en) * | 2016-11-18 | 2017-07-04 | 歌尔科技有限公司 | Loudspeaker module |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN107509145A (en) | 2017-12-22 |
| WO2019041402A1 (en) | 2019-03-07 |
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