CN110933563B - Sound generating device module and electronic product - Google Patents
Sound generating device module and electronic product Download PDFInfo
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- CN110933563B CN110933563B CN201911159648.2A CN201911159648A CN110933563B CN 110933563 B CN110933563 B CN 110933563B CN 201911159648 A CN201911159648 A CN 201911159648A CN 110933563 B CN110933563 B CN 110933563B
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- shell
- fixing surface
- side wall
- sound
- generating device
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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
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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
- H04R9/04—Construction, mounting, or centering of coil
- H04R9/045—Mounting
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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
- H04R2499/00—Aspects covered by H04R or H04S not otherwise provided for in their subgroups
- H04R2499/10—General applications
- H04R2499/11—Transducers incorporated or for use in hand-held devices, e.g. mobile phones, PDA's, camera's
Abstract
The invention provides a sound generating device module and an electronic product. The sound generating mechanism module includes: the shell assembly comprises a first shell and a second shell which are combined to form a first side wall of the shell assembly and a second side wall opposite to the first side wall, and a side sound outlet is formed in the first side wall; a first fixing surface and a second fixing surface are formed on the area of the first shell, the height of the first fixing surface is higher than that of the second fixing surface, and the second shell is provided with a hot melting convex edge; the first shell and the second shell are buckled and fixed, the hot-melting convex edges are pressed on the two fixing surfaces, the hot-melting convex edges are fixedly connected with the first fixing surface and the second fixing surface in a melting mode through a melting process, and the opening height of the side sound outlet is gradually reduced along the direction from the first side wall to the second side wall. The opening height of the side sound outlet is gradually reduced along the direction from the first side wall to the second side wall through structural improvement, so that the side sound outlet of the positive horn mouth is obtained, abnormal airflow sound is eliminated, and high-order distortion of a product is reduced.
Description
Technical Field
The invention relates to the technical field of electroacoustic, in particular to a sound production device module and an electronic product.
Background
The loudspeaker is used as a device for converting electric energy into sound energy, and is widely applied to mobile terminals such as mobile phones, computers, pads and the like. The sound reproduction effect of the terminal device is directly influenced by the quality of the device performance. The speaker module is a system including a speaker unit. The speaker module includes a monolithic system and a housing system. And the monolithic system comprises the vibrating body and the magnetic circuit system. The vibration system comprises a vibrating diaphragm, a Dome and a voice coil and is used for finishing the sound production of the loudspeaker module through vibration. The magnetic circuit system comprises a washer, a central magnet and a basin frame and is used for providing a magnetic field required by vibration for the loudspeaker module. The shell system comprises an upper shell, a middle shell and a lower shell which are connected with each other to form a shell of the loudspeaker module.
The loudspeaker module with the structure has smaller overall size, namely a small cavity structure. The upper shell and the middle shell are provided with openings, the openings of the upper shell and the middle shell are correspondingly provided with sound holes for forming the loudspeaker, and the materials at the openings of the upper shell and the middle shell are thin and free of support and are in a suspended state. When the upper shell and the middle shell are subjected to ultrasonic welding, the sound hole side is easy to collapse, and the height of the shell on the sound hole side is obviously lower than that of the shell on the opposite side of the sound hole. The structural defect of the inverted bell mouth state can cause the vibration space change of the front cavity, so that the airflow velocity is easy to change suddenly, abnormal airflow sound is formed, and high-order distortion of products is caused.
Therefore, it is necessary to improve the housing structure of the conventional speaker module, so as to prevent the structural defect of the inverted bell mouth, eliminate abnormal airflow sound, and reduce high-order distortion of the product.
Disclosure of Invention
The invention aims to provide a sound generating device module, which solves the problem of side collapse of a sound hole of the sound generating device module
Another object of the present invention is to provide an electronic product, which includes the above sound-generating device module.
A sound generator module comprising:
the shell assembly comprises a first shell and a second shell, the first shell and the second shell are combined to form a first side wall of the shell assembly and a second side wall opposite to the first side wall, and a side sound outlet is formed in the first side wall;
the first shell is provided with a first fixing surface on a region close to the first side wall, the first shell is provided with a second fixing surface on a region close to the second side wall, the height of the first fixing surface is higher than that of the second fixing surface, and the second shell is provided with a hot-melting convex edge;
the first shell and the second shell are buckled and fixed, the hot-melting convex edge is pressed on the first fixing surface and the second fixing surface, the hot-melting convex edge is fixedly connected with the first fixing surface and the second fixing surface in a melting mode through a melting process, and the opening height of the side sound outlet is gradually reduced along the direction from the first side wall to the second side wall;
the sounding assembly is arranged in the shell assembly, and the sounding assembly is communicated with the side sounding port.
Optionally, a step is formed between the first fixing surface and the second fixing surface.
Optionally, the step is formed between the first sidewall and the second sidewall at a position close to the first sidewall.
Optionally, the height difference between the first fixing surface and the second fixing surface ranges from 0.04mm to 0.07 mm.
Optionally, the heat-melting rib comprises a first rib section close to the first side wall and a second rib section close to the second side wall, and the height of the second rib section protruding from the second shell is higher than the height of the first rib section protruding from the second shell.
Optionally, the height difference of the second rib section relative to the first rib section ranges from 0.01mm to 0.03 mm.
Optionally, the first fixing surface is arranged on two sides of the side sound outlet, and the second fixing surface is arranged around the sound production assembly.
Optionally, the heat-melting rib is configured to be melt-connected with the first fixing surface and the second fixing surface through an ultrasonic welding process.
Alternatively, the first case and the second case are configured to maintain a posture in which a pitch on the first side wall side is larger than a pitch on the second side wall side when the melting process is performed.
An electronic product, comprising: the electronic product comprises an electronic product main body and the sound generating device module, wherein the sound generating device module is arranged in the electronic product main body, and the side sound outlet enables the interior of the sound generating device module to be communicated with the exterior of the electronic product main body.
The technical scheme of the invention has the beneficial effects that: through the structural improvement to first casing and second casing, make the side play sound mouth open highly along the direction from first lateral wall to second lateral wall reduce gradually, obtain the side play sound mouth of positive horn mouth, do benefit to gas exchange, effectively eliminated unusual air current sound, reduced the high-order distortion of product to the acoustic performance of sound generating mechanism module is provided.
Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, 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 structural diagram of a sound generating device module according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a first housing according to an embodiment of the invention;
fig. 3 is a schematic structural diagram of a first housing according to an embodiment of the invention;
FIG. 4 is an enlarged partial view of the first housing according to an embodiment of the present invention;
fig. 5 is a schematic structural view of a second housing according to an embodiment of the present invention; .
The figures are labeled as follows: 10-a second housing; 101-a second convex edge section; 102-a first convex edge segment; 20-a first housing; 201-a first fixed surface; 202-a second fixed surface; 203-step; 30-a third housing; 40-a voice coil; 50-a magnet; 60-Dome; 70-a diaphragm; 80-basin rack.
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, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.
The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.
Techniques, methods, and apparatus known to those 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 particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
Because the shell forming the sound outlet in the sound generating device module is made of thinner material at the sound outlet, and the sound outlet is not supported and is in a suspended state. The upper shell and the middle shell of the sound generating device module are subjected to ultrasonic welding to easily cause the side of the sound outlet to collapse, and the height of the shell on one side of the sound outlet is obviously lower than that of the shell on the opposite side of the sound outlet. The structural defect of the inverted bell mouth state can cause the vibration space change of the front cavity, and then the airflow velocity is easy to change suddenly, so that abnormal airflow sound is formed, and high-order distortion of products is caused. Therefore, it is necessary to improve the housing structure of the conventional sound generating device module, prevent the structural defect of the inverted bell mouth, eliminate abnormal airflow sound, and reduce high-order distortion of the product.
A sound generator module comprising:
the shell assembly comprises a first shell and a second shell, the first shell and the second shell are combined to form a first side wall of the shell assembly and a second side wall opposite to the first side wall, and a side sound outlet is formed in the first side wall;
the first shell is provided with a first fixing surface on a region close to the first side wall, the first shell is provided with a second fixing surface on a region close to the second side wall, the height of the first fixing surface is higher than that of the second fixing surface, and the second shell is provided with a hot-melting convex edge;
the first shell and the second shell are buckled and fixed, the hot-melting convex edge is pressed on the first fixing surface and the second fixing surface, the hot-melting convex edge is fixedly connected with the first fixing surface and the second fixing surface in a melting mode through a melting process, and the opening height of the side sound outlet is gradually reduced along the direction from the first side wall to the second side wall;
the sounding assembly is arranged in the shell assembly, and the sounding assembly is communicated with the side sounding port.
Referring to fig. 1, a housing assembly of a sound generator module according to an embodiment of the present invention includes a first housing 20 and a second housing 10. Alternatively, the first housing may be a middle shell and the second housing an upper shell. The housing assembly may further include a third housing 30, which is a lower housing. The upper shell, the middle shell and the lower shell are combined together to form a shell of the sound generating device module. Alternatively, the first housing may be an upper shell and the second housing may be a middle shell. The invention is not limited in this regard.
Optionally, the first and second housings combine to form opposing first and second sidewalls of the housing assembly. The side sound outlet is arranged on the first side wall, namely the side sound outlet is arranged on the side surface of the sound generating device module. When the sound generating device module works, the side sound outlet is used for gas exchange between the sound generating device module and the outside so as to balance the air pressure inside and outside the sound generating device module.
As an example, as shown in fig. 3, the first housing 20 is formed with a first fixing surface 201 and a second fixing surface 202. The first fixing surface is arranged in the area of the first shell close to the first side wall, and the first fixing surface is arranged in the area close to the second side wall. There is a difference in height between the first and second fixing surfaces. The first fastening surface has a higher height requirement than the second fastening surface, see fig. 2. The first fixing surface and the second fixing surface form a structure with uneven height on the first shell. Optionally, the second housing 10 is provided with a heat-melting rib. When the first shell and the second shell are combined, the hot melting convex edge is opposite to the first fixing surface and the second fixing surface.
As an embodiment, the first casing 20 and the second casing 10 are fastened to form an outer shell of the sound generating device module. When the first casing and the second casing are fastened together, the heat-melting ribs are pressed on the first fixing surface 201 and the second fixing surface 202. Alternatively, the hot-melting convex edge can be fixedly connected with the first fixing surface and the second fixing surface in a melting mode through a melting process. The melting process described herein can be various processes capable of providing heat to the heat-melting rib, the first fixing surface and the second fixing surface to melt them, and the present invention is not limited to the specific type of melting process, and those skilled in the art can select the melting process according to practical conditions. When the hot melting convex edge is fixedly connected with the first fixing surface and the second fixing surface in a melting way, the opening height of the side sound outlet formed on the first side wall is a gradually changing value. The opening height is gradually reduced from the first side wall to the second side wall. This arrangement forms a right bell shape from the inside out on the sound generator module, as shown in fig. 1. The shape of the positive horn mouth is convenient for airflow to enter and exit the sound cavity of the sound generating device module.
Optionally, the sound generator module further comprises a sound generating assembly disposed in the housing assembly. Referring to fig. 1, the sound generating assembly may include a magnet 50, a voice coil 40, a frame 80, a Dome60, a diaphragm 70, and the like. The sound production subassembly with set up the side sound outlet intercommunication at first lateral wall. I.e. the side outlet is used as a gas exchange channel for the sound emitting assembly. When current is introduced into the voice coil, the voice coil vibrates under the action of the magnetic field to drive the vibrating diaphragm connected with the voice coil to vibrate. The vibration of the diaphragm can change the gas pressure around the diaphragm, and the gas movement realizes the sound production function of the sound production device module.
According to the invention, the first fixing surface 201 close to the side sound outlet and the second fixing surface 202 close to the second side wall and lower than the first fixing surface are arranged on the first shell 20, so that when the first shell 20 and the second shell 10 are mutually buckled, melted and fixed, the second shell is microscopically inclined relative to the first shell, and the positive horn mouth structure with the opening height of the side sound outlet gradually reduced from the first side wall to the second side wall is obtained. The problem that side sound outlet department slightly sinks in current sound generating mechanism module has been solved to this structure. The smooth and easy nature of air current business turn over sound generating mechanism module can obviously be improved to positive horn mouth structure, has avoided unusual air current sound, reduces the product distortion, has improved the fidelity effect of sound generating mechanism module, and then has improved the acoustic performance.
Optionally, a step is formed between the first fixing surface and the second fixing surface.
The first housing 20 of the present invention is provided with a first fixing surface 201 and a second fixing surface 202. A height difference exists between the first fixing surface and the second fixing surface, so that the height of the first fixing surface is higher than that of the second fixing surface. Alternatively, referring to fig. 3-4, a step 203 climbing from the second fixing surface to the first fixing surface may be provided between the two fixing surfaces such that the first fixing surface has a higher height than the second fixing surface. This setting mode is simple, and it is easy to realize, low in manufacturing cost to can the difference in height of two fixed surfaces of accurate control, be favorable to guaranteeing the dimensional accuracy of sound generating mechanism module.
As another example, a slope climbing from the second fixing surface to the first fixing surface may be provided between the first fixing surface and the second fixing surface, and the slope may be used to implement the height difference setting between the first fixing surface and the second fixing surface. The setting on slope not only can satisfy the requirement of difference in height between two stationary planes, and when first casing and second casing melting were fixed, increased the volume of molten material simultaneously, effectively prevented the scarce material phenomenon between first casing and the second casing, guaranteed the closure of sound generating mechanism module cavity, prevented gas leakage.
Optionally, the step is formed between the first sidewall and the second sidewall at a position close to the first sidewall.
As shown in fig. 3, the step 203 forming the height difference between the first fixing surface 201 and the second fixing surface 202 is disposed at a position close to the first side wall, so that the opening height of the side sound outlet is ensured to be gradually reduced along the direction from the first side wall to the second side wall when the first casing and the second casing are fixedly connected, the material consumption of the first fixing surface with a high height can be reduced, the weight of the sound generating device module can be reduced, and the product is developed towards the direction of light weight.
Optionally, the height difference between the first fixing surface and the second fixing surface ranges from 0.04mm to 0.07 mm.
As an embodiment of the present invention, a height difference between the first fixing surface 201 and the second fixing surface 202 may be set to 0.04-0.07 mm. When the height difference of the two fixing surfaces is in the range, the problem of uneven gas flow caused by collapse of the side sound outlet can be effectively solved. In addition, as electronic products are increasingly miniaturized, the existing sound generating device modules are all developed towards lightness and thinness, and when the height difference is within the range, the influence on the overall size of the sound generating device module is small.
Optionally, the heat-melting convex rib comprises a first convex rib section 102 close to the first side wall and a second convex rib section 101 close to the second side wall, and the height of the second convex rib section protruding from the second shell is higher than the height of the first convex rib section protruding from the second shell.
As one example, as shown in fig. 5, the heat-staking fin includes a first fin section 102 and a second fin section 101. The first convex edge section and the second convex edge section protrude from the second housing 10 and are integrally provided with the second housing. First protruding arris section and the protruding arris section of second promptly can with second casing integrated into one piece, reduce the structure complexity of second casing, reduce the manufacturing cost of first protruding arris section and the protruding arris section of second simultaneously. Optionally, the first bead segment is adjacent the first sidewall of the housing assembly and the second bead segment is adjacent the second sidewall of the housing assembly. The height of the second rib section protruding out of the second shell is higher than the height of the first rib section protruding out of the second shell. This mode of setting can avoid first casing and second casing melt to connect the time, because of the higher second lateral wall that leads to of first stationary plane height lack of material problem. Namely, the part of the second convex rib section higher than the first convex rib section is used for compensating the melting shortage.
Optionally, the height difference of the second rib section relative to the first rib section ranges from 0.01mm to 0.03 mm.
As an embodiment of the present invention, the height difference between the second convex edge section 101 and the first convex edge section 102 may be set to 0.01mm to 0.03 mm. When the height difference is within the range, the problem of material shortage of the second side wall can be effectively compensated, and meanwhile, the gradual change requirement of the opening height of the lateral sound outlet cannot be influenced. Optionally, the second convex edge segment is a line segment close to and parallel to the second sidewall. First protruding arris section begins to extend from the both ends of the protruding arris section of second, sets up around the preceding sound chamber of sound generating mechanism module.
Optionally, the first fixing surface is arranged on two sides of the side sound outlet, and the second fixing surface is arranged around the sound production assembly.
As an embodiment of the present invention, as shown in fig. 3, the first fixing surfaces 201 are disposed at both sides of the side sound outlet, forming two independent planes having the same height. The two independent planes give up the arrangement space of the side sound outlet, and the interference between the side sound outlet and the first fixing surface can be prevented. The second fixing surface 202 surrounds the sounding assembly, and forms a supporting structure for forming a front sound cavity of the sounding device module together with the first fixing surface.
Optionally, the heat-melting rib is configured to be melt-connected with the first fixing surface and the second fixing surface through an ultrasonic welding process.
In an embodiment of the present invention, the heat-melting protrusion is fused with the first fixing surface 201 and the second fixing surface 202, so as to fixedly connect the first casing 20 and the second casing 10. Alternatively, the material may be melted by heating the heat-melting rib, the first fixing surface, and the second fixing surface with ultrasonic waves. And then, connecting and fixing the melting convex edge with the first fixing surface and the second fixing surface by using a welding process.
Alternatively, the first case and the second case are configured to maintain a posture in which a pitch on the first side wall side is larger than a pitch on the second side wall side when the melting process is performed.
As an example, when the heat-melting protrusion is connected to the first fixing surface 201 and the second fixing surface 202 by using a melting process, a gap between the first case and the second case on the first sidewall side may be maintained to be larger than a gap between the first case and the second case on the second sidewall side. That is, during the melt-joining process, the positions of the first and/or second housings 20 and 10 are always defined so that the opening height of the joined side sound outlet is a gradual value. In particular, a spacing tool may be used to define the position of the first housing and/or the second housing. Other ways of limiting the first housing and/or the second housing are also possible, and the invention is not limited thereto. This position is injectd and can be further guaranteed on improved structure's basis that the side sound outlet is forward horn mouth, guarantees front chamber vibration space, stabilizes the air current velocity of flow, less product distortion.
The present invention also provides an electronic product, comprising: the electronic product comprises an electronic product main body and the sound generating device module, wherein the sound generating device module is arranged in the electronic product main body, and the side sound outlet enables the interior of the sound generating device module to be communicated with the exterior of the electronic product main body.
Optionally, the side sound outlet of the sound generating device is communicated with the outside of the electronic product main body, so that gas can smoothly enter into and exit from the inside of the sound generating device module, abnormal airflow sound is avoided, and good acoustic performance of the electronic product is guaranteed. Alternatively, the electronic product may be a mobile phone, a computer, a smart watch, and the like, and the electronic product is not limited by the invention.
According to the invention, through the structural improvement of the first shell and the second shell, the opening height of the side sound outlet is gradually reduced along the direction from the first side wall to the second side wall, so that the side sound outlet in the shape of a regular horn mouth is obtained, the smoothness of gas entering and exiting the interior of the sound generating device module is greatly improved, the gas exchange is favorably realized, the abnormal airflow sound is effectively eliminated, the high-order distortion of a product is reduced, and the acoustic performance of the sound generating device module is further provided.
Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustrative purposes only and are not intended to limit the scope of the present 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 (10)
1. A sound generating device module, comprising:
the shell assembly comprises a first shell and a second shell, the first shell and the second shell are combined to form a first side wall of the shell assembly and a second side wall opposite to the first side wall, and a side sound outlet is formed in the first side wall;
the first shell is provided with a first fixing surface on a region close to the first side wall, the first shell is provided with a second fixing surface on a region close to the second side wall, the height of the first fixing surface is higher than that of the second fixing surface, and the second shell is provided with a hot-melting convex edge;
the first shell and the second shell are buckled and fixed, the hot-melting convex edge is pressed on the first fixing surface and the second fixing surface, the hot-melting convex edge is fixedly connected with the first fixing surface and the second fixing surface in a melting mode through a melting process, and the opening height of the side sound outlet is gradually reduced along the direction from the first side wall to the second side wall;
the sounding assembly is arranged in the shell assembly, and the sounding assembly is communicated with the side sounding port.
2. The sound generator module of claim 1, wherein a step is formed between the first and second mounting surfaces.
3. The sound generator module of claim 2, wherein the step is formed between the first and second sidewalls at a location proximate the first sidewall.
4. The sound generator module of claim 1, wherein the difference in height between the first and second mounting surfaces is in the range of 0.04mm-0.07 mm.
5. The sound generator module of claim 1, wherein the heat-staking ridge includes a first ridge section adjacent the first sidewall and a second ridge section adjacent the second sidewall, the second ridge section projecting from the second housing at a greater height than the first ridge section.
6. The sound generator module of claim 5, wherein the difference in height of the second rib segment relative to the first rib segment is in the range of 0.01mm to 0.03 mm.
7. The sound generating device module as claimed in claim 1, wherein the first fixing surface is disposed on both sides of the side sound outlet, and the second fixing surface is disposed around the sound generating assembly.
8. The sound generating device module of claim 1, wherein the heat-staking ridge is configured to be melt-bonded to the first and second mounting surfaces via an ultrasonic welding process.
9. The sound generating device module of claim 1, wherein the first housing and the second housing are configured to maintain a posture in which a spacing on the first side wall side is larger than a spacing on the second side wall side when a fusing process is performed.
10. An electronic product, comprising: an electronic product main body and the sound generating device module of any one of claims 1 to 9, wherein the sound generating device module is disposed in the electronic product main body, and the side sound outlet enables the interior of the sound generating device module to communicate with the exterior of the electronic product main body.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911159648.2A CN110933563B (en) | 2019-11-22 | 2019-11-22 | Sound generating device module and electronic product |
| PCT/CN2019/129001 WO2021098010A1 (en) | 2019-11-22 | 2019-12-27 | Sound generation device module and electronic product |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911159648.2A CN110933563B (en) | 2019-11-22 | 2019-11-22 | Sound generating device module and electronic product |
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| CN110933563A CN110933563A (en) | 2020-03-27 |
| CN110933563B true CN110933563B (en) | 2021-02-19 |
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| WO (1) | WO2021098010A1 (en) |
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Also Published As
| Publication number | Publication date |
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| CN110933563A (en) | 2020-03-27 |
| WO2021098010A1 (en) | 2021-05-27 |
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