CN106911988B - Vibrating diaphragm, loudspeaker and assembling method thereof - Google Patents
Vibrating diaphragm, loudspeaker and assembling method thereof Download PDFInfo
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- CN106911988B CN106911988B CN201710208444.8A CN201710208444A CN106911988B CN 106911988 B CN106911988 B CN 106911988B CN 201710208444 A CN201710208444 A CN 201710208444A CN 106911988 B CN106911988 B CN 106911988B
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- support ring
- diaphragm
- inner support
- vibrating diaphragm
- ring
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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
-
- 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)
- Diaphragms For Electromechanical Transducers (AREA)
Abstract
The invention discloses a vibrating diaphragm, a loudspeaker and an assembling method thereof, wherein the vibrating diaphragm comprises a vibrating diaphragm body (110), an inner support ring (130) and an outer support ring (120), wherein the inner support ring (130) is jointed with the vibrating diaphragm body (110) to form a fixed part of the vibrating diaphragm (100); the outer support ring (120) and the vibrating diaphragm body (110) are joined together to form a positioning part of the vibrating diaphragm (100), and the outer support ring (120) is arranged around the inner support ring (130).
Description
Technical Field
The invention relates to the technical field of electroacoustic products, in particular to a vibrating diaphragm, a loudspeaker with the vibrating diaphragm and an assembling method of the loudspeaker.
Background
The speaker unit is an electroacoustic device that converts an electric signal into a sound signal. The loudspeaker monomer includes shell, protecgulum, magnetic circuit subassembly and vibration subassembly, and magnetic circuit subassembly and vibration subassembly are acceptd in the space that is enclosed by shell and protecgulum. The vibrating assembly comprises a voice coil and a vibrating diaphragm fixedly connected with the voice coil, wherein the edge part of the vibrating diaphragm is a fixing part, and the vibrating diaphragm is fixedly adhered to the shell on one side and is fixedly adhered to the front cover on the other side through the fixing part so as to divide the space into a front sound cavity on one side of the front cover and a rear sound cavity on one side of the rear cover. The magnetic circuit assembly is arranged in the rear acoustic cavity, the voice coil is arranged in the magnetic gap of the magnetic circuit assembly, so that when the voice coil receives an audio signal (alternating current signal), the voice coil can vibrate under the action of the magnetic circuit assembly, surrounding air is driven to sound through the vibrating diaphragm, and the conversion from an electric signal to a sound signal is realized.
The single vibrating diaphragm of the loudspeaker can comprise a vibrating diaphragm body and a steel ring arranged at the edge part of the vibrating diaphragm body, wherein the steel ring is clamped between the shell and the front cover, and a positioning notch matched with a hot melting positioning column of the shell is formed in the corner of the steel ring so as to position the vibrating diaphragm. The positioning structure has the following defects: the space requirement is high, and when the width of the fixed part of the vibrating diaphragm is narrow or the radius of the rounding corners (R angle) of the four corners of the vibrating diaphragm is small, the positioning structure cannot be applied, so that the positioning structure has larger application limitation; the positioning notch of the steel ring is matched with the hot-melt positioning column, so that the material tolerance is large, the assembly error is added, and the positioning precision is poor; and, the structure is complicated, a post hot melting process is needed later, and the hot melting state is difficult to ensure. Accordingly, there is a need for improved diaphragm structures to provide additional positioning structures.
Disclosure of Invention
It is an object of embodiments of the present invention to provide a new solution for a diaphragm to provide an additional positioning structure.
According to a first aspect of the present invention, there is provided a diaphragm comprising a diaphragm body, an inner support ring and an outer support ring, the inner support ring and the diaphragm body being joined together to form a fixed portion of the diaphragm; the outer support ring is connected with the vibrating diaphragm body to form a positioning part of the vibrating diaphragm, and the outer support ring is arranged around the inner support ring.
Optionally, the geometric center of the outer support ring coincides with the geometric center of the inner support ring.
Optionally, the inner support ring and the outer support ring are located on the same side of the diaphragm body.
Optionally, the vibrating diaphragm body includes a folded ring portion, and the inner support ring and the outer support ring are both disposed around the folded ring portion; the ring-folded part protrudes outwards from the first surface side of the vibrating diaphragm body, the vibrating diaphragm body is provided with a second surface opposite to the first surface, and the inner support ring and the outer support ring are simultaneously positioned on the first surface of the vibrating diaphragm body or the inner support ring and the outer support ring are simultaneously positioned on the second surface.
Optionally, the vibrating diaphragm body includes a folded ring portion, and the inner support ring and the outer support ring are both disposed around the folded ring portion; the ring-folded part protrudes outwards from the first surface side of the vibrating diaphragm body, the vibrating diaphragm body is provided with a second surface opposite to the first surface, one of the inner supporting ring and the outer supporting ring is positioned on the first surface, and the other is positioned on the second surface.
Optionally, the inner support ring and the outer support ring are both joined together with the diaphragm body by injection molding the diaphragm body as an insert.
Optionally, the inner support ring and the outer support ring are bonded to the diaphragm body by bonding.
According to a second aspect of the present invention there is also provided a loudspeaker comprising a housing and a finished diaphragm, the finished diaphragm being obtained by cutting a diaphragm according to the first aspect of the present invention, the cutting being arranged to cut the diaphragm body along the outer rim of the inner support ring, the finished diaphragm being adhesively secured to the housing at a securing portion of the cut diaphragm.
Optionally, an upper edge of the housing adjacent to the finished diaphragm is flush with an outer ring surface of the inner support ring of the finished diaphragm.
According to a third aspect of the present invention, there is also provided a method of assembling a speaker, comprising the steps of:
A. manufacturing a vibrating diaphragm according to the first aspect of the invention;
B. positioning a peripheral frame of a loudspeaker, gluing the upper end surface of the peripheral frame to form a gluing surface, positioning an outer support ring of the vibrating diaphragm, and then butting a fixing part of the vibrating diaphragm, which comprises an inner support ring, with the gluing surface to realize fixation;
C. and cutting the vibrating diaphragm along the outer ring edge of the inner support ring so as to cut off the part of the vibrating diaphragm, which is positioned outside the outer ring edge of the inner support ring.
Optionally, between the step a and the step B, the voice coil and the diaphragm are adhered and fixed;
in the step B, the peripheral frame of the loudspeaker is a shell, and a gluing surface is formed on the upper end surface of the shell;
after step C, the magnetic circuit assembly of the speaker is fixed to the housing.
The vibrating diaphragm is positioned through the outer support ring, and the inner support ring positioned on the fixing part is not needed, so that the inner support ring can be designed into a complete structure without a positioning notch, and the structural strength of the vibrating diaphragm and the bonding strength between the vibrating diaphragm and the front cover or the shell can be improved; in a second aspect, the positioning structure can be applied to an application occasion with insufficient internal positioning space; in the third aspect, the outer support ring can be positioned through a tool, and the positioning accuracy is higher than that between the positioning notch and the hot-melt positioning column.
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 perspective view of an embodiment of a diaphragm according to the present invention;
FIG. 2 is a schematic perspective view of the diaphragm of FIG. 1;
FIG. 3 is a schematic top view of one embodiment of an intermediate product of speaker monomers according to the present invention;
FIG. 4 is a schematic perspective view in cross-section at A-A in FIG. 3;
fig. 5 is a schematic cross-sectional view in the direction A-A of fig. 3.
Reference numerals illustrate:
100-vibrating diaphragm; 110-a vibrating diaphragm body;
111-a central portion; 112-a collar portion;
113-a connection; 120-an outer support ring;
121-an inner ring surface of an outer support ring; 122-an outer race surface of the outer support ring;
121 a-inner ring chamfer; 122 a-outer ring chamfer;
130-an inner support ring; 131-inner ring surface of the inner support ring;
132-the outer ring surface of the inner support ring; 131 a-inner ring chamfer;
132 a-outer ring chamfer; 140-a reinforcing part;
200-a housing; 300-magnetic circuit assembly;
400-voice coil.
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.
Fig. 1 and 2 are schematic structural views of an embodiment of a diaphragm according to the present invention.
As shown in fig. 1 and 2, the diaphragm 100 of the present invention includes a diaphragm body 110, an inner support ring 130, and an outer support ring 120.
The inner support ring 130 is coupled with the diaphragm body 110 to form a fixing portion of the diaphragm 100. When the diaphragm 100 is assembled to form a speaker (speaker unit or speaker module), the diaphragm 100 is bonded and fixed to the housing and the front cover (in the embodiment where the front cover is provided) at the position of the fixing portion thereof.
The inner support ring 130 may be joined with the diaphragm body 110 by injection molding the diaphragm body 110 as an insert.
The inner support ring 130 may also be bonded to the diaphragm body 110 by adhesive means. For example, a back adhesive is adhered to the inner support ring 130, and the inner support ring 130 is placed on a forming mold of the diaphragm body 110, so that the inner support ring 130 is adhered and fixed together during the forming process of the diaphragm body 110.
The material of the inner support ring 130 may be metal, plastic, ceramic, or the like. For example, the inner support ring 130 is a steel ring.
The outer support ring 120 is joined with the diaphragm body 110 to form a positioning portion of the diaphragm 100, wherein the outer support ring 120 is disposed around the inner support ring 130.
The geometric center of the outer support ring 120 may coincide with the geometric center of the inner support ring 130.
Since the outer support ring 120 is located outside the fixing portion of the diaphragm 100, the outer support ring 120 can be positioned by a tool when the speaker is assembled through the diaphragm 100. Since the outer support ring 120 and the inner support ring 130 have a certain positional relationship, the positional accuracy of the inner support ring 130 can be ensured by positioning the outer support ring 120.
After assembly, the outer support ring 120 has completed its positioning function, at which point the diaphragm 100 may be cut along the outer rim of the inner support ring 130 to yield the finished diaphragm of the loudspeaker. The positioning structure not only has higher positioning precision, but also is not limited by the inner space, and has stronger adaptability.
The outer support ring 120 may be coupled with the diaphragm body 110 by injection molding the diaphragm body 110 as an insert.
The outer support ring 120 may also be bonded to the diaphragm body 110 by an adhesive means. For example, a back adhesive is adhered to the outer support ring 120, and the outer support ring 120 is placed on a forming mold of the diaphragm body 110, so that the outer support ring 120 is adhered and fixed together during the forming process of the diaphragm body 110.
The material of the outer support ring 120 may be metal, plastic, ceramic, or the like. For example, the outer support ring 120 is a steel ring.
The diaphragm body 110 may include a main body portion 111 at the center, a hinge portion 112 surrounding the main body portion 111, and a connection portion 113 surrounding the hinge portion 112, that is, the diaphragm body 110 may include the main body portion 111, the hinge portion, and the connection portion 113 sequentially received from the inside to the outside.
The fixed portion of the diaphragm 100 is located on the connection portion 113, and thus, the inner support ring 130 is disposed around the folded ring portion 112.
In one embodiment of the present invention, as shown in fig. 1 and 2, the inner support ring 130 and the outer support ring 120 may be located on the same side of the diaphragm body 110.
Further, the inner support ring 130 and the outer support ring 120 may be located on the first surface of the diaphragm body 110 at the same time, where the first surface is a surface of the folded ring portion 112 of the diaphragm body 110 protruding outwards.
In other embodiments of the present invention, the inner support ring 130 and the outer support ring 120 may also be located on a second surface of the diaphragm body 110 opposite to the first surface.
In further embodiments of the present invention, the inner support ring 130 and the outer support ring 120 may also be disposed one on the first surface and the other on the second surface.
In one embodiment of the present invention, as shown in fig. 1 and 2, the inner support ring 130 and the outer support ring 120 may have the same thickness.
In one embodiment of the present invention, as shown in fig. 1 and 2, the outer support ring 120 may be located at an edge portion of the diaphragm body 110.
With the diaphragm 100 of the present invention, since the positioning by the inner support ring 130 is not required, the four corners of the inner support ring 130 do not need to be provided with concave notches, the inner support ring 130 has a complete structure, and the structural strength and the bonding strength of the diaphragm 100 are improved.
The shape of the above inner support ring 130 and the shape of the diaphragm 100 depend on the shape of the corresponding speaker, for example, the diaphragm 100 and the inner support ring 130 are substantially square (including rectangle or square), circular, etc.
In the embodiment shown in fig. 1 to 3, the inner support ring 130 has a square shape, and the outer ring surface 132 of the inner support ring 130 has an outer ring chamfer surface 132a formed by rounding at the corners of the inner support ring 130, without providing a positioning notch at the corners as in the prior art.
Further, in the embodiment shown in fig. 1 to 3, the inner ring surface 131 of the inner support ring 130 may also have an inner ring chamfer surface 131a formed by rounding at the corners of the inner support ring 130.
The chamfer radius of the outer ring chamfer surface 132a of the above inner support ring 130 may be smaller than the chamfer radius of the inner ring chamfer surface 131a of the inner support ring 130. The chamfer radius of the outer ring chamfer surface 132a may be very small to increase the surface area of the inner support ring 130 as a securing portion as much as machining permits.
In other embodiments, the outer race surface 132 of the inner support ring 130 may also be at right angles at the corners.
In the embodiment shown in fig. 1 to 3, the outer support ring 120 may also be square, and the outer ring surface 122 of the outer support ring 120 may have an outer ring chamfer surface 122a formed by rounding at corners of the outer support ring 120.
In the embodiment shown in fig. 1 to 3, the inner ring surface 121 of the outer support ring 120 may also have an inner ring chamfer 121a formed by rounding at the corners of the outer support ring 120.
Further, the chamfer radius of the inner ring chamfer surface 121a of the outer support ring 120 may be smaller than the chamfer radius of the outer ring chamfer surface 122a of the outer support ring 120. For example, the chamfer radius of the inner ring chamfer surface 121a may be equal to the chamfer radius of the outer ring chamfer surface 132 a.
According to another aspect of the present invention, there is also provided a speaker, which may be a speaker unit or a speaker module.
Fig. 3 to 5 are schematic structural views of intermediate products of a speaker according to an embodiment of the present invention.
Referring to fig. 3 to 5, the speaker of the present invention includes a housing 200 and a finished diaphragm obtained by cutting any one of the diaphragms 100, for example, cutting the diaphragm body 110 along the outer circumferential edge of the inner support ring 130 to obtain the finished diaphragm of the speaker.
The finished diaphragm is adhesively fixed to the housing 200 at the location of the fixing portion of the diaphragm 100.
In the embodiment shown in fig. 3-5, the inner support ring 130 is located on the side facing away from the housing 200.
In other embodiments, the inner support ring 130 may also be positioned on a side facing the housing 200 to be adhesively secured with the housing 200 by the inner support ring 130.
In the embodiment shown in fig. 3-5, the housing 200 may not be provided with a hot melt location post, and therefore, the upper edge of the housing 200 adjacent the finished diaphragm may be flush with the outer rim surface 132 of the inner support ring 130.
In other embodiments, the housing 200 may also be provided with a heat-fusible positioning post for heat-fusible fixing and positioning between the housing 200 and the front cover (in the embodiment where the front cover is provided). For this embodiment, the diaphragm 100 may be provided with a through hole between the inner support ring 130 and the outer support ring 120, which penetrates through the diaphragm body 110, so as to avoid the hot-melt positioning column of the housing 200 during assembly.
The magnetic circuit assembly 300 of the speaker is located in a rear acoustic chamber divided by a finished diaphragm and mounted on the housing 200.
The voice coil 400 of the loudspeaker is fixedly connected with the finished diaphragm to form a vibrating assembly of the loudspeaker. The voice coil 400 is disposed in the magnetic gap of the magnetic circuit assembly 300 to vibrate under the action of the magnetic circuit assembly when receiving the audio signal (AC signal), thereby driving the ambient air to sound through the diaphragm
According to a third aspect of the present invention, there is also provided an electronic device comprising any of the above speakers.
The electronic device is, for example, a cell phone, a tablet computer, a smart wearable device, etc.
The invention also provides an assembling method of the loudspeaker, which comprises the following steps:
step a, a diaphragm 100 according to the present invention is fabricated.
And B, positioning the peripheral frame of the loudspeaker, gluing the upper end surface of the peripheral frame to form a gluing surface, positioning the outer support ring 120 of the diaphragm 100, and then butting the fixing part of the diaphragm 100 comprising the inner support ring 130 with the gluing surface to fix the fixing part.
And C, cutting the diaphragm 100 along the outer rim of the inner support ring 130 to cut off the portion of the diaphragm 100 located outside the outer rim of the inner support ring 130.
Further, the voice coil 400 may be adhesively fixed to the diaphragm 100 between the step a and the step B.
Further, in step B, the peripheral frame of the speaker may be the housing 200, so as to form a glue surface on the upper end surface of the housing 200.
Further, the magnetic circuit assembly 300 of the speaker may be fixed to the housing 200 after step C.
The embodiments described above mainly focus on differences from other embodiments, but it should be clear to a person skilled in the art that the embodiments described above may be used alone or in combination with each other as desired.
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 (11)
1. A vibrating diaphragm (100) characterized by comprising a vibrating diaphragm body (110), an inner support ring (130) and an outer support ring (120), wherein the inner support ring (130) and the vibrating diaphragm body (110) are joined together to form a fixed part of the vibrating diaphragm (100); the outer support ring (120) and the vibrating diaphragm body (110) are connected together to form a positioning part of the vibrating diaphragm (100), the outer support ring (120) is arranged around the inner support ring (130), the outer support ring (120) is located at the edge part of the vibrating diaphragm body (110), when the loudspeaker is assembled through the vibrating diaphragm (100), the outer support ring (120) is positioned through a tool, and after the assembly is completed, the vibrating diaphragm (100) is cut along the outer ring edge of the inner support ring (130) to obtain a finished vibrating diaphragm of the loudspeaker.
2. The diaphragm (100) of claim 1, wherein a geometric center of the outer support ring (120) coincides with a geometric center of the inner support ring (130).
3. The diaphragm (100) of claim 1, wherein the inner support ring (130) is located on the same side of the diaphragm body (110) as the outer support ring (120).
4. A diaphragm (100) according to claim 3, wherein the diaphragm body (110) comprises a folded-over portion (112), the inner support ring (130) and the outer support ring (120) being each arranged around the folded-over portion (112); the folded ring part (112) protrudes outwards from the first surface side of the vibrating diaphragm body (110), the vibrating diaphragm body is provided with a second surface opposite to the first surface, the inner support ring (130) and the outer support ring (120) are simultaneously positioned on the first surface of the vibrating diaphragm body (110), or the inner support ring (130) and the outer support ring (120) are simultaneously positioned on the second surface.
5. The diaphragm (100) of claim 1, wherein the diaphragm body (110) includes a folded-over ring portion (112), the inner support ring (130) and the outer support ring (120) each being disposed around the folded-over ring portion (112); the folded ring part (112) protrudes outwards at the side of the first surface of the vibrating diaphragm body (110), the vibrating diaphragm body is provided with a second surface opposite to the first surface, one of the inner support ring (130) and the outer support ring (120) is positioned on the first surface, and the other is positioned on the second surface.
6. The diaphragm (100) of any of claims 1 to 5, wherein the inner support ring (130) and the outer support ring (120) are each joined together with the diaphragm body (110) by injection molding the diaphragm body (110) as an insert.
7. The diaphragm (100) of any of claims 1 to 5, wherein the inner support ring (130) and the outer support ring (120) are each bonded to the diaphragm body (110) by adhesion.
8. A loudspeaker comprising a housing (200) and a finished diaphragm, characterized in that the finished diaphragm is obtained by cutting the diaphragm (100) according to any one of claims 1 to 7, said cutting being arranged to cut the diaphragm body (110) along the outer rim of the inner support ring (130), the finished diaphragm being adhesively secured to the housing (200) at the securing portion of the cut diaphragm (100).
9. The loudspeaker of claim 8, wherein an upper edge of the housing (200) adjacent the finished diaphragm is flush with an outer rim surface (132) of an inner support ring (130) of the finished diaphragm.
10. A method of assembling a loudspeaker, comprising the steps of:
A. -making a diaphragm (100) according to any one of claims 1 to 7;
B. positioning a peripheral frame of a loudspeaker, gluing the upper end surface of the peripheral frame to form a gluing surface, positioning an outer support ring (120) of the vibrating diaphragm (100), and then butting a fixing part of the vibrating diaphragm (100) comprising an inner support ring (130) with the gluing surface to realize fixation;
C. cutting the diaphragm (100) along the outer rim of the inner support ring (130) to cut off a portion of the diaphragm (100) located outside the outer rim of the inner support ring (130).
11. The method of assembling according to claim 10, wherein,
between the step A and the step B, a voice coil (400) and the vibrating diaphragm (100) are adhered and fixed;
in the step B, the peripheral frame of the loudspeaker is a shell (200), and a gluing surface is formed on the upper end surface of the shell (200);
after step C, the magnetic circuit assembly (300) of the speaker is fixed to the housing (200).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710208444.8A CN106911988B (en) | 2017-03-31 | 2017-03-31 | Vibrating diaphragm, loudspeaker and assembling method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710208444.8A CN106911988B (en) | 2017-03-31 | 2017-03-31 | Vibrating diaphragm, loudspeaker and assembling method thereof |
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| CN106911988A CN106911988A (en) | 2017-06-30 |
| CN106911988B true CN106911988B (en) | 2023-09-29 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107277717A (en) * | 2017-07-21 | 2017-10-20 | 深圳市音沃仕科技有限公司 | For the assemble method without protecgulum loudspeaker and a kind of loudspeaker |
| CN108696808B (en) * | 2018-08-02 | 2020-11-17 | 歌尔股份有限公司 | Loudspeaker and loudspeaker assembling method |
| CN109511079A (en) * | 2018-12-07 | 2019-03-22 | 歌尔股份有限公司 | Sounding device, for sounding device vibrating diaphragm component processing method |
| CN112866884A (en) * | 2019-11-12 | 2021-05-28 | 歌尔股份有限公司 | Miniature sound generating device and electronic product |
| CN111918198B (en) * | 2020-07-06 | 2022-03-01 | 瑞声新能源发展(常州)有限公司科教城分公司 | Vibrating diaphragm forming process |
| CN212785820U (en) * | 2020-07-09 | 2021-03-23 | 瑞声科技(新加坡)有限公司 | Vibrating diaphragm subassembly and speaker |
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| CN106911988A (en) | 2017-06-30 |
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