CN112261549B - Vibrating diaphragm and sound production device - Google Patents
Vibrating diaphragm and sound production device Download PDFInfo
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- CN112261549B CN112261549B CN202011053266.4A CN202011053266A CN112261549B CN 112261549 B CN112261549 B CN 112261549B CN 202011053266 A CN202011053266 A CN 202011053266A CN 112261549 B CN112261549 B CN 112261549B
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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
- H04R7/00—Diaphragms for electromechanical transducers; Cones
- H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
- H04R7/04—Plane diaphragms
- H04R7/06—Plane diaphragms comprising a plurality of sections or layers
- H04R7/10—Plane diaphragms comprising a plurality of sections or layers comprising superposed layers in contact
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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
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
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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
- H04R9/06—Loudspeakers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- 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
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
- Piezo-Electric Transducers For Audible Bands (AREA)
Abstract
The invention provides a vibrating diaphragm which comprises a first base material layer, a first adhesive layer, a second base material layer, a second adhesive layer and a third base material layer which are sequentially stacked and stuck fixedly, wherein the first adhesive layer comprises a first adhesive layer body and a first convex column, the second adhesive layer comprises a second adhesive layer body and a second convex column, the first adhesive layer body is clamped between the first base material layer and the second base material layer, the first convex column is embedded into the second base material layer, the second adhesive layer body is clamped between the second base material layer and the third base material layer, and the second convex column is embedded into the second base material layer, so that the first adhesive layer, the second base material layer and the second adhesive layer form an integrated structure. The invention also provides a sound production device applying the vibrating diaphragm. Compared with the prior art, the vibrating diaphragm has the advantages of small difference of material characteristics of all layers, high shearing performance, weak material nonlinearity and high reliability, and the acoustic performance of the sound production device is good.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the field of electroacoustic conversion, in particular to a vibrating diaphragm and a sound production device applied to a portable electronic product.
[ background of the invention ]
With the advent of the mobile internet age, the number of smart mobile devices is increasing. Among the mobile devices, the mobile phone is undoubtedly the most common and portable mobile terminal device. At present, the functions of mobile phones are very diverse, one of them is a high-quality music function, and therefore, a sound generating device for playing sound is widely applied to the current smart mobile devices. The sound production device comprises a vibrating diaphragm for vibrating and producing sound, and the acoustic performance of the vibrating diaphragm is an important performance of the sound production device.
The diaphragm of the related art includes an adhesive layer, and a first substrate layer and a second substrate layer respectively adhered and fixed to opposite sides of the adhesive layer.
However, in the related art, the first substrate layer, the adhesive layer, and the second substrate layer of the diaphragm stacked in sequence form a composite structure material, and the composite structure may have a risk of interlayer separation under extreme working conditions (e.g., high temperature, low temperature, large vibration amplitude), and the shearing performance between the layers is low, so that the reliability of the diaphragm is low. In addition, because the elastic modulus of the first substrate layer and the elastic modulus of the second substrate layer are far larger than the elastic modulus of the adhesive layer, and the damping characteristic of the first substrate layer and the damping characteristic of the second substrate layer are far smaller than the damping characteristic of the adhesive layer, the performance change of the vibrating diaphragm material along the thickness direction is severe, the nonlinearity of the vibrating diaphragm material is strong, and the vibration amplitude is asymmetric when the vibrating diaphragm vibrates, so that the distortion of the sound generating device is high, and the acoustic performance of the sound generating device cannot achieve an ideal effect.
Therefore, there is a need to provide a new diaphragm and sound generating device to solve the above-mentioned technical problems.
[ summary of the invention ]
The invention aims to provide a vibrating diaphragm which has small difference of material characteristics of each layer, high shearing performance, weak material nonlinearity and high reliability and a sound production device with good acoustic performance.
In order to achieve the above object, the present invention provides a diaphragm, which includes a first substrate layer, a first adhesive layer, a second substrate layer, a second adhesive layer and a third substrate layer, wherein the first substrate layer, the first adhesive layer, the second substrate layer, the second adhesive layer and the third substrate layer are sequentially stacked and bonded, the first adhesive layer includes a first adhesive layer body and a first convex pillar protruding and extending from the first adhesive layer body to the second substrate layer, the second adhesive layer includes a second adhesive layer body and a second convex pillar protruding and extending from the second adhesive layer body to the second substrate layer, the first adhesive layer body is clamped between the first substrate layer and the second substrate layer, the first convex pillar is embedded into the second substrate layer, the second adhesive layer body is clamped between the second substrate layer and the third substrate layer, and the second convex pillar is embedded into the second substrate layer, so that the first adhesive layer, the second adhesive layer, the first adhesive layer, the second adhesive layer and the third adhesive layer are sequentially stacked and fixed, and the first convex pillar is protruded and extended from the first adhesive layer body to the second adhesive layer, the second adhesive layer and the second adhesive layer are sequentially stacked and the second adhesive layer, and the second adhesive layer are sequentially stacked and the second adhesive layer are fixed to the second adhesive layer and the second adhesive layer, and the second adhesive layer are stacked in the second adhesive layer and the second adhesive layer are stacked in the second adhesive layer and the second adhesive layer are stacked in the second adhesive layer and the first adhesive layer and the second adhesive layer are stacked in the second adhesive layer and the second adhesive layer are stacked in the second adhesive layer and the second adhesive layer are stacked in the second adhesive layer and the second adhesive, The second base material layer and the second adhesive layer form an integrated structure.
Preferably, the first convex columns comprise a plurality of first convex columns, and the plurality of first convex columns are distributed in a matrix manner; the second convex columns comprise a plurality of second convex columns which are distributed in a matrix manner.
Preferably, the second substrate layer comprises a substrate layer body and a plurality of through holes penetrating through the substrate layer body, each first convex column is inserted into a corresponding through hole to form a fixing, and each second convex column is inserted into a corresponding through hole to form a fixing.
Preferably, the first convex columns and the second convex columns are arranged in a one-to-one opposite mode, the through holes and the first convex columns are arranged in a one-to-one opposite mode, and a group of the first convex columns and the second convex columns which are arranged in an opposite mode are inserted into the same corresponding through holes from two opposite sides of the substrate layer body to form fixation.
Preferably, the first convex column and the second convex column in the same through hole are abutted and fixed to form a whole.
Preferably, the diaphragm is manufactured by a liquefaction, injection and solidification process.
Preferably, the first adhesive layer is made of any one of acrylic acid, rubber and silica gel, the second adhesive layer is made of any one of acrylic acid, rubber and silica gel, the first substrate layer is made of any one of polyethylene terephthalate, polyether ether ketone and polyetherimide, the second substrate layer is made of any one of polyethylene terephthalate, polyether ether ketone and polyetherimide, and the third substrate layer is made of any one of polyethylene terephthalate, polyether ether ketone and polyetherimide.
The invention also provides a sounding device, which comprises a vibration system and a magnetic circuit system for driving the vibration system to vibrate and sound, wherein the vibration system comprises the diaphragm.
Compared with the prior art, the vibrating diaphragm and the sound production device are sequentially provided with the first base material layer, the first adhesive layer, the second base material layer, the second adhesive layer and the third base material layer in a stacking and pasting mode through the structure of the vibrating diaphragm, the first convex column of the first adhesive layer is embedded into the second base material layer, and the second convex column of the second adhesive layer is embedded into the second base material layer; meanwhile, the first adhesive layer body is clamped between the first base material layer and the second base material layer, the second adhesive layer body is clamped between the second base material layer and the third base material layer, and the first adhesive layer, the second base material layer and the second adhesive layer form an integrated structure through the structure. Because the first adhesive layer and the second adhesive layer are respectively embedded into the second base material layer to form a whole, on one hand, the structure can improve the shearing performance among the layers of the vibrating diaphragm, and the stripping resistance and the layering resistance of the vibrating diaphragm are improved, so that the reliability of the vibrating diaphragm is high; on the other hand, the material characteristic difference such as the elastic modulus and the damping of each layer of the vibrating diaphragm is reduced, so that the nonlinearity of the material along the thickness direction is reduced, the amplitude symmetry of the vibrating diaphragm is improved, the distortion of the sound production device can be reduced, and the acoustic performance of the sound production device is good. In addition, first substrate layer and third substrate layer set up respectively in the relative both sides of vibrating diaphragm, only in first adhesive layer the second substrate layer and glue is invaded to these three-layers of second adhesive layer, and its first substrate layer and third substrate layer still use complete substrate layer, and the leakproofness of vibrating diaphragm can be guaranteed to this structure, makes the performance of the waterproof air of separating the antechamber of sound production device of vibrating diaphragm and/or the air of back chamber not influenced to improve the reliability of vibrating diaphragm.
[ description of the drawings ]
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:
FIG. 1 is a schematic perspective view of a diaphragm according to the present invention;
FIG. 2 is an exploded view of a partial perspective structure of a diaphragm according to the present invention;
FIG. 3 is a cross-sectional view taken along line A-A of FIG. 1;
fig. 4 is a schematic perspective view of a sound production device according to the present invention.
[ detailed description ] embodiments
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a diaphragm 100. The vibrating diaphragm 100 comprises a first substrate layer 1, a first adhesive layer 2, a second substrate layer 3, a second adhesive layer 4 and a third substrate layer 5 which are sequentially stacked and adhered and fixed.
The first substrate layer 1, the first adhesive layer 2, the second substrate layer 3, the second adhesive layer 4 and the third substrate layer 5 are respectively fixed by adhesive or resin curing. Of course, other adhesive fastening means are also possible. The first substrate layer 1, the second substrate layer 3 and the third substrate layer 5 are all common substrates in the art, and specific models and parameters can be selected and used by those skilled in the art according to actual needs, which are not described in detail herein.
The first adhesive layer 2 comprises a first adhesive layer body 21 and a first convex column 22 which protrudes and extends from the first adhesive layer body 21 to the second base material layer 3. The first adhesive layer body 21 is sandwiched between the first base material layer 1 and the second base material layer 3. The first convex column 22 is embedded in the second substrate layer 3.
The second adhesive layer 4 comprises a second adhesive layer body 41 and a second convex column 42 which protrudes and extends from the second adhesive layer body 41 to the direction of the second base material layer 3. The second adhesive layer body 41 is sandwiched between the second base material layer 3 and the third base material layer 5. The second convex column 42 is embedded in the second substrate layer 3,
because the first convex column 22 and the second convex column 42 are embedded in the second base material layer 3, the first adhesive layer 2, the second base material layer 3 and the second adhesive layer 4 form an integrated structure by the structure. The integrated structure can improve the shearing performance between layers of the diaphragm 100, and the stripping resistance and the delamination resistance of the diaphragm 100 are improved, so that the reliability of the diaphragm 100 is high.
The elastic modulus of the second base material layer 3 is respectively greater than the elastic modulus of the first adhesive layer 2 and the elastic modulus of the second adhesive layer 4, and the damping characteristics of the second base material layer 3 are both less than the damping characteristics of the first adhesive layer 2 and the damping characteristics of the second adhesive layer 4. In the structure, the first convex column 22 and the second convex column 42 are embedded into the second substrate layer 3 to form an integral structure, so that the elastic modulus and the damping characteristic of the integral structure formed by combining the three layers of materials tend to be close to those of the second substrate layer 3. That is, this integrated structure reduces the difference between the elastic modulus of the second base material layer 3 and the elastic modulus of the first adhesive layer 2 and the elastic modulus of the second adhesive layer 4, respectively, and reduces the difference between the damping characteristic of the second base material layer 3 and the damping characteristic of the first adhesive layer 2 and the damping characteristic of the second adhesive layer 4, respectively. Similarly, the elastic modulus and the damping characteristic of the integrated structure tend to approach those of the first substrate layer 1 and the third substrate layer 5, respectively. Thereby reducing the non-linearity of the material of the diaphragm 100 in the thickness direction and improving the amplitude symmetry of the diaphragm 100.
In this embodiment, the first protruding columns 22 include a plurality of protruding columns 22, and the plurality of protruding columns 22 are distributed in a matrix; the second protruding columns 42 include a plurality of second protruding columns 42, and the plurality of second protruding columns 42 are distributed in a matrix. The first adhesive layer 2, the second base material layer 3 and the second adhesive layer 4 are integrated into a whole to be more firm due to the plurality of first convex columns 22 and the plurality of second convex columns 42, so that the stripping resistance and the layering resistance of the diaphragm 100 are improved, and meanwhile, the structural material is good in uniformity and good in acoustic performance when the diaphragm 100 vibrates to generate sound.
In the present embodiment, the second substrate layer 3 includes a substrate layer main body 31 and a plurality of through holes 30 penetrating the substrate layer main body 31. Each first convex column 22 is fixedly inserted into a corresponding through hole 30, and each second convex column 42 is fixedly inserted into a corresponding through hole 30. The structure is simple in manufacturing process, and the first adhesive layer 2, the second base material layer 3 and the second adhesive layer 4 form an integral structure which is firm and reliable, so that the bonding strength of each layer of the diaphragm 100 is high.
In order to improve the uniformity of the material of the diaphragm 100, in this embodiment, the first protruding columns 22 and the second protruding columns 42 are disposed opposite to each other. The through holes 30 are arranged opposite to the first convex columns 22 one by one, and a group of the first convex columns 22 and the second convex columns 42 which are arranged opposite to each other are fixed by inserting the same corresponding through holes 30 from two opposite sides of the substrate layer body 31. This structure makes along one that substrate layer body 31 vertical direction set up through-hole 30, one in this through-hole 30 first projection 22 and corresponding one second projection 42 are concentric settings, promptly first projection 22 and corresponding one the center pin of second projection 42 is same, thereby makes when vibrating diaphragm 100 vibrates the sound production, the vibration of first adhesive layer 2, the vibration of second substrate layer 3 and the vibration of second adhesive layer 4 are synchronous, thereby makes acoustic performance is good when vibrating diaphragm 100 vibrates the sound production.
In order to further improve the uniformity of the material of the diaphragm 100, in this embodiment, the first protruding pillar 22 and the second protruding pillar 42 in the same through hole 30 are abutted and fixed to form a whole. This structure can improve the consistency of the material of the diaphragm 100 on the one hand, and can prevent the risk of delamination and falling off due to the existence of bubbles on the other hand.
In this embodiment, the first adhesive layer 2 is made of any one of acrylic acid, rubber and silica gel, the second adhesive layer 4 is made of any one of acrylic acid, rubber and silica gel, the first substrate layer 1 is made of any one of Polyethylene terephthalate (PET), polyether ether ketone (PEEK) and Polyetherimide (PEI), the second substrate layer 3 is made of any one of Polyethylene terephthalate (PET), polyether ether ketone (PEEK) and Polyetherimide (PEI), and the third substrate layer 5 is made of any one of Polyethylene terephthalate (PET), polyether ether ketone (PEEK) and Polyetherimide (PEI).
In this embodiment, the diaphragm 100 is manufactured by a liquefaction, injection and solidification process, and the liquefaction, injection and solidification process is to inject the liquefied first adhesive layer 2 and the liquefied second adhesive layer 4 between the first substrate layer 1 and the third substrate layer 5, respectively, and to fill the through hole 30 and then solidify the through hole. For example: the first adhesive layer 2 and the second adhesive layer 4 are both acrylic acid, when the adhesive tape is manufactured, the through hole 30 is prefabricated on the second base material layer 3, the first base material layer 1 and the third base material layer 5 are arranged at intervals and fixed in a mold clamping plate, then liquid acrylic acid is filled between the first base material layer 1 and the third base material layer 5, the mold is filled with the liquid acrylic acid with good flowing property, and the cured acrylic acid forms the first adhesive layer 2 and the second adhesive layer 4 between the first base material layer 1 and the third base material layer 5; the solidified acrylic acid forms the first convex column 22 and the second convex column 42 in the through hole 30 respectively; and simultaneously the first adhesive layer 2, the second base material layer 3 and the second adhesive layer 4 form an integrated structure. The structure reduces the difference of the elastic modulus, damping and other material characteristics of each layer of the vibrating diaphragm 100, thereby reducing the nonlinearity of the material along the thickness direction, improving the symmetry of the vibrating diaphragm 100 amplitude, and reducing the distortion of a sound production device.
More preferably, the first substrate layer 1 and the third substrate layer 5 are respectively disposed on two opposite sides of the diaphragm 100, glue is only infiltrated into the first adhesive layer 2, the second substrate layer 3 and the second adhesive layer 4 in the manufacturing process of the diaphragm 100, and the first substrate layer 1 and the third substrate layer 5 still use a complete substrate layer, so that the sealing performance of the diaphragm 100 can be ensured, the diaphragm 100 is waterproof, and the performance of air in the front cavity and/or air in the rear cavity of the sound generating device are not affected, thereby improving the reliability of the diaphragm 100.
Referring to fig. 4, the present invention further provides a sound generating device 200. The sounder device 200 includes a vibration system 7 and a magnetic circuit system 8 for driving the vibration system 7 to vibrate and generate sound. The vibration system 7 includes the diaphragm 100.
In this embodiment, the sound production device 200 further comprises a basin stand 6. The vibration system 7 and the magnetic circuit system 8 are respectively fixed on the basin frame 6. Specifically, the diaphragm 100 is fixed to the frame 6. Because the difference of the elastic modulus, damping and other material characteristics of each layer of the diaphragm 100 is reduced, the nonlinearity of the material in the thickness direction is reduced, the amplitude symmetry of the diaphragm 100 is improved, the distortion of the sound-generating device 200 can be reduced, and the acoustic performance of the sound-generating device 200 is good.
Compared with the prior art, the vibrating diaphragm and the sound production device are sequentially provided with the first base material layer, the first adhesive layer, the second base material layer, the second adhesive layer and the third base material layer in a stacking and pasting mode through the structure of the vibrating diaphragm, the first convex column of the first adhesive layer is embedded into the second base material layer, and the second convex column of the second adhesive layer is embedded into the second base material layer; meanwhile, the first adhesive layer body is clamped between the first base material layer and the second base material layer, the second adhesive layer body is clamped between the second base material layer and the third base material layer, and the first adhesive layer, the second base material layer and the second adhesive layer form an integrated structure through the structure. Because the first adhesive layer and the second adhesive layer are respectively embedded into the second base material layer to form a whole, on one hand, the structure can improve the shearing performance among the layers of the vibrating diaphragm, and the stripping resistance and the layering resistance of the vibrating diaphragm are improved, so that the reliability of the vibrating diaphragm is high; on the other hand, the material characteristic difference such as the elastic modulus and the damping of each layer of the vibrating diaphragm is reduced, so that the nonlinearity of the material along the thickness direction is reduced, the amplitude symmetry of the vibrating diaphragm is improved, the distortion of the sound production device can be reduced, and the acoustic performance of the sound production device is good. In addition, first substrate layer and third substrate layer set up respectively in the relative both sides of vibrating diaphragm, only in first adhesive layer the second substrate layer and glue is invaded to these three-layers of second adhesive layer, and its first substrate layer and third substrate layer still use complete substrate layer, and the leakproofness of vibrating diaphragm can be guaranteed to this structure, makes the performance of the waterproof air of separating the antechamber of sound production device of vibrating diaphragm and/or the air of back chamber not influenced to improve the reliability of vibrating diaphragm.
While the foregoing is directed to embodiments of the present invention, it will be understood by those skilled in the art that various changes may be made without departing from the spirit and scope of the invention.
Claims (8)
1. A vibrating diaphragm is characterized by comprising a first base material layer, a first adhesive layer, a second base material layer, a second adhesive layer and a third base material layer which are sequentially stacked and fixedly adhered, wherein the first adhesive layer comprises a first adhesive layer body and a first convex column which extends in a protruding mode in the direction of the second base material layer from the first adhesive layer body, the second adhesive layer comprises a second adhesive layer body and a second convex column which extends in a protruding mode in the direction of the second base material layer from the second adhesive layer body, the first adhesive layer body is clamped between the first base material layer and the second base material layer, the first convex column is embedded into the second base material layer, the second adhesive layer body is clamped between the second base material layer and the third base material layer, the second convex column is embedded into the second base material layer, and therefore the first adhesive layer, the second adhesive layer and the third base material layer are sequentially stacked and fixedly adhered to each other, The second base material layer and the second adhesive layer form an integrated structure; the elastic modulus of the second base material layer is respectively greater than the elastic modulus of the first adhesive layer and the elastic modulus of the second adhesive layer, and the damping characteristics of the second base material layer are both less than the damping characteristics of the first adhesive layer and the damping characteristics of the second adhesive layer.
2. The diaphragm of claim 1, wherein the first plurality of studs is distributed in a matrix; the second convex columns comprise a plurality of second convex columns which are distributed in a matrix manner.
3. The diaphragm of claim 2, wherein the second substrate layer includes a substrate layer body and a plurality of through holes penetrating through the substrate layer body, each of the first protruding columns is inserted into a corresponding one of the through holes to form a fixation, and each of the second protruding columns is inserted into a corresponding one of the through holes to form a fixation.
4. The diaphragm of claim 3, wherein the first and second protruding columns are disposed opposite to each other, the through holes are disposed opposite to the first protruding columns, and a set of the first and second protruding columns disposed opposite to each other are inserted into the same corresponding through hole from two opposite sides of the substrate layer body to be fixed.
5. The diaphragm of claim 4, wherein the first protrusion and the second protrusion in the same through hole are abutted and fixed to form a whole.
6. The diaphragm of claim 4, wherein the diaphragm is manufactured by a liquefaction, injection and solidification process.
7. The diaphragm of claim 1, wherein the first adhesive layer is made of any one of acrylic acid, rubber and silica gel, the second adhesive layer is made of any one of acrylic acid, rubber and silica gel, the first substrate layer is made of any one of polyethylene terephthalate, polyether ether ketone and polyetherimide, the second substrate layer is made of any one of polyethylene terephthalate, polyether ether ketone and polyetherimide, and the third substrate layer is made of any one of polyethylene terephthalate, polyether ether ketone and polyetherimide.
8. A sound-producing device comprising a vibration system and a magnetic circuit system for driving the vibration system to vibrate and produce sound, wherein the vibration system comprises the diaphragm according to any one of claims 1 to 7.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011053266.4A CN112261549B (en) | 2020-09-29 | 2020-09-29 | Vibrating diaphragm and sound production device |
| PCT/CN2020/129787 WO2022068011A1 (en) | 2020-09-29 | 2020-11-18 | Diaphragm and sound production device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011053266.4A CN112261549B (en) | 2020-09-29 | 2020-09-29 | Vibrating diaphragm and sound production device |
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| CN112261549A CN112261549A (en) | 2021-01-22 |
| CN112261549B true CN112261549B (en) | 2022-03-29 |
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| CN202011053266.4A Active CN112261549B (en) | 2020-09-29 | 2020-09-29 | Vibrating diaphragm and sound production device |
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| CN (1) | CN112261549B (en) |
| WO (1) | WO2022068011A1 (en) |
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| CN104754472A (en) * | 2015-03-24 | 2015-07-01 | 歌尔声学股份有限公司 | Vibration film component |
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- 2020-11-18 WO PCT/CN2020/129787 patent/WO2022068011A1/en active Application Filing
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| CN203747985U (en) * | 2013-12-09 | 2014-07-30 | 歌尔声学股份有限公司 | Diaphragm and loudspeaker employing diaphragm |
| WO2016165363A1 (en) * | 2015-04-17 | 2016-10-20 | 歌尔声学股份有限公司 | Speaker vibration system |
| CN208509249U (en) * | 2018-07-25 | 2019-02-15 | 广州弘博音响有限公司 | A kind of loudspeaker of cone stable connection |
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| Publication number | Publication date |
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| CN112261549A (en) | 2021-01-22 |
| WO2022068011A1 (en) | 2022-04-07 |
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