CN115604631A - Vibrating diaphragm, preparation method thereof and sound production device - Google Patents
Vibrating diaphragm, preparation method thereof and sound production device Download PDFInfo
- Publication number
- CN115604631A CN115604631A CN202211512813.XA CN202211512813A CN115604631A CN 115604631 A CN115604631 A CN 115604631A CN 202211512813 A CN202211512813 A CN 202211512813A CN 115604631 A CN115604631 A CN 115604631A
- Authority
- CN
- China
- Prior art keywords
- region
- diaphragm
- modulus
- vibrating diaphragm
- plating layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R31/00—Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor
- H04R31/003—Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor for diaphragms or their outer suspension
-
- 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
- H04R7/16—Mounting or tensioning of diaphragms or cones
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Manufacturing & Machinery (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
Abstract
The application provides a vibrating diaphragm and a preparation method thereof, and a sound production device, wherein the vibrating diaphragm comprises a vibrating diaphragm body part and a fixing part connected to the periphery of the vibrating diaphragm body part, a metal coating is arranged on the vibrating diaphragm body part, the metal coating comprises a first coating region and a second coating region positioned outside the first coating region, and the modulus of the region corresponding to the first coating region is greater than that of the region corresponding to the second coating region, so that the problems that the conventional vibrating diaphragm only has a flexible part and a rigid part, and the two regions are too single, so that the low frequency to the high frequency transition is poor, the distortion curve is not smooth, and the like are effectively solved. This application is through setting up metal coating on vibrating diaphragm body portion and divide into the different three and above gradient of rigidity with vibrating diaphragm body portion, and this kind of design does benefit to whole support intensity under the improvement vibrating diaphragm vibration state, and the holding power is more balanced, and the nonlinear harmonic when being favorable to reducing the vibration produces to reduce the nonlinear distortion of speaker, promote product acoustic performance.
Description
Technical Field
The application belongs to the technical field of sounding devices, and particularly relates to a vibrating diaphragm, a preparation method of the vibrating diaphragm and a sounding device of the vibrating diaphragm.
Background
With the development of science and technology and the progress of technology, people feel more and more exquisite to sound and have higher and higher requirements on tone quality. The diaphragm of the existing loudspeaker is generally composed of a rigid spherical top part and a flexible corrugated ring part, which respectively affect the low-frequency and high-frequency performances of an acoustic device; the material of the whole corrugated ring part is uniform from outside to inside, so that the structure and the functionality of the flexible part of the vibrating diaphragm are single. Present vibrating diaphragm structure, ball top and the book ring portion including interconnect, wherein, the ball top is flat structure, book ring portion is the arc structure, during the vibrating diaphragm vibration, the amplitude of different positions on the book ring portion is different, the amplitude that is close to the ball top position is great, the amplitude of keeping away from the ball top position reduces gradually, if the intensity that is close to ball top one side position on the book ring portion is not enough, can lead to the inboard rigidity of book ring portion weak point, cause resonance, cut apart vibration scheduling problem, make the vibrating diaphragm have the holding power unbalance when the vibration, produce nonlinear harmonic easily, nonlinear harmonic increases, produce the distortion peak, thereby strengthen the nonlinear distortion of speaker, influence the tone quality effect of speaker.
Along with the continuous improvement of the performance requirements of electronic products, in order to meet the high-performance requirements of different frequency bands of the products, the function refinement of the vibrating diaphragm structure is more and more necessary.
Disclosure of Invention
In view of this, the present application provides a diaphragm capable of effectively reducing the nonlinear distortion of a product.
The application also provides a preparation method of the vibrating diaphragm.
This application still provides a sound generating mechanism with above-mentioned vibrating diaphragm.
In one aspect, the present application provides a diaphragm, including a diaphragm body portion and a fixing portion connected to a periphery of the diaphragm body portion, where the diaphragm body portion is provided with a metal plating layer, the metal plating layer includes a first plating layer region and a second plating layer region located outside the first plating layer region, and a modulus of a region corresponding to the first plating layer region is greater than a modulus of a region corresponding to the second plating layer region.
In a preferred embodiment, the diaphragm body portion includes a globe top portion and a corrugated portion connected to an outer periphery of the globe top portion, and the metal plating layer is disposed on the corrugated portion and/or the globe top portion.
In a preferred embodiment, the metal plating layer is arranged on the top dome part and/or between the top dome part and the annular flange part, and the thickness of the metal plating layer is 0.5um to 2um.
In a preferred embodiment, the metal coating is disposed on the hinge portion, and the hinge portion is divided into a first region corresponding to the first coating region, a second region corresponding to the second coating region, and a third region located outside the metal coating, wherein the modulus of the second region is between the modulus of the third region and the modulus of the top of the ball.
In a preferred embodiment, the ratio of the sum of the widths of the first region and the second region to the width of the third region is 1:5~5:1.
in a preferred embodiment, the modulus of the second region is greater than ten percent and less than ninety percent of the modulus of the third region and the modulus of the first region is greater than ten percent and less than ninety percent of the modulus of the ball top.
In a preferred embodiment, the first coating region is configured as a plurality of gradient layers which divide the region corresponding to the first coating region into a plurality of subregions; and/or the second plating layer region is configured into a plurality of gradient layers, and the plurality of gradient layers divide the region corresponding to the second plating layer region into a plurality of sub-regions.
In a preferred embodiment, in a direction from outside to inside of the diaphragm, thicknesses of the gradient layers sequentially increase, and moduli of sub-regions corresponding to the gradient layers sequentially increase.
In a preferred embodiment, the modulus of the sub-region corresponding to one of the gradient layers is greater than ten percent and less than ninety percent of the modulus of the sub-region corresponding to the adjacent outer gradient layer.
In a preferred embodiment, the thickness of the metal plating layer provided on the annular flange portion is 0.02um to 2um.
In a preferred embodiment, a rib is provided at a corner of the folded ring portion, and the metal plating layer is correspondingly provided on the rib.
The application still provides a sound generating mechanism, including the sound generating mechanism main part and as above the vibrating diaphragm, the vibrating diaphragm sets up in the sound generating mechanism main part, the vibrating diaphragm is configured to can vibrate the sound production.
To sum up, the application provides a vibrating diaphragm and preparation method, sound generating mechanism, through set up the metal coating on vibrating diaphragm body portion, make vibrating diaphragm body portion divide into the different at least three region of modulus by metal coating, and, the modulus in at least three region increases progressively in vibrating diaphragm outside-in's direction, make the vibrating diaphragm rigidity strengthen gradually in outside-in's direction, effectively solved conventional vibrating diaphragm and only had flexible portion and rigidity portion, two regional too single situation, thereby lead to from the low frequency to the high frequency excessively not good, distortion curve scheduling problem. The metal coating can be prepared by a vacuum plating mode, the preparation process is simple and stable, and the manufacturing cost of the product can be reduced. This application is through setting up metal coating on vibrating diaphragm body portion and divide into the different three and above gradient of rigidity with vibrating diaphragm body portion, and this kind of design does benefit to whole support intensity under the improvement vibrating diaphragm vibration state, and the holding power is more balanced, and the nonlinear harmonic when being favorable to reducing the vibration produces to reduce the nonlinear distortion of speaker, promote product acoustic performance.
Drawings
Fig. 1 is a schematic structural diagram of a diaphragm according to a first embodiment of the present application.
Fig. 2 is a schematic structural diagram of a diaphragm according to a second embodiment of the present application.
Fig. 3 is a graph comparing the nonlinear distortion curves of the diaphragm of the present application and the conventional diaphragm.
Detailed Description
The technical solutions of the present application will be further described in detail with reference to the drawings and examples, which should not be construed as limiting the present application.
The application provides a vibrating diaphragm, this vibrating diaphragm includes vibrating diaphragm body portion and connects in the peripheral fixed part of vibrating diaphragm body portion, set up metallic coating on this vibrating diaphragm body portion, metallic coating divides vibrating diaphragm body portion whole into the different at least three region of modulus, and the modulus in this at least three region increases progressively in the direction of vibrating diaphragm outside-in, the rigidity outside-in that also should at least three region increases progressively in proper order, thereby effectively solve the present vibrating diaphragm that does not set up the modulus gradient change existence from the low frequency to the high frequency excessive not good, distortion curve scheduling problem. In the application, the metal plating layer comprises a first plating layer region and a second plating layer region positioned outside the first plating layer region, and the modulus of a region corresponding to the first plating layer region is greater than that of a region corresponding to the second plating layer region.
Further, the vibrating diaphragm body part comprises a ball top part and a folding ring part connected to the periphery of the ball top part, and the metal coating can be arranged on the folding ring part alone, or the metal coating can be arranged on the ball top part and the folding ring part simultaneously. For example, when the metal plating layer is provided on the ball top alone, the metal plating layer may be configured into at least two gradients, and the thicknesses of the at least two gradients of the metal plating layer are set to be different, for example, to be sequentially increased in the outside-in direction, so that the modulus of the ball top region corresponding to each of the at least two gradients of the metal plating layer is sequentially increased. For another example, the metal plating layer is simultaneously disposed on the top of the ball and the corrugated rim portion, the first plating layer region may be disposed on the top of the whole ball, the second plating layer region may be disposed on a portion of the corrugated rim portion connected to the top of the ball, or the second plating layer region may be disposed on the whole corrugated rim portion, the first plating layer region may be disposed on a portion of the top of the ball connected to the corrugated rim portion, or the first plating layer region and the second plating layer region may be disposed on a portion of the top of the ball connected to the corrugated rim portion, or the thicknesses of the plating layers on the top of the ball and the corrugated rim portion may be the same or different. It is within the scope of the present application to provide a metal coating that divides the diaphragm into at least three regions with sequentially increasing moduli from the outside to the inside.
In some embodiments, the metal coating is disposed on the top of the ball and/or between the top of the ball and the corrugated portion, and the thickness of the metal coating is preferably 0.5um to 2um.
In some embodiments, the metal plating layer is disposed on the annular folding part, and the thickness of the metal plating layer on the annular folding part is preferably 0.02um to 2um.
The following describes in detail an embodiment in which the metal plating layer is separately provided on the corrugated rim portion, with reference to the drawings.
Referring to fig. 1 to 2, the present application provides a diaphragm 10, where the diaphragm 10 is rectangular, and includes a top portion 12 located at a center, a folded portion 14 disposed around the top portion 12 and connected to a periphery of the top portion 12, and a fixing portion 15 disposed around the folded portion 14 and connected to a periphery of the folded portion 14. It should be understood that in other embodiments, the diaphragm 10 may be designed to have other shapes, and the external shape of the diaphragm 10 is not limited in this application.
The main material of the diaphragm 10 may be a single-layer film of PEN, PET, PEEK, PEI, TPEE, TPU, silicone rubber, or a composite film formed by combining the above materials. The bending part 14 can be designed to be circular arc, the top part 12 can be designed to be plane or arc surface, and in this application, the top part 12 is designed to be plane.
The diaphragm 10 can be divided into a flexible portion and a rigid portion according to the degree of rigidity of each portion of the diaphragm, where the ball top portion 12 is the rigid portion and the ring-folded portion 14 is the flexible portion.
As shown in fig. 1, the corrugated portion 14 is provided with a metal plating layer, the metal plating layer includes a first plating region 17 and a second plating region 19 located outside the first plating region 17, the thickness of the first plating region 17 is greater than that of the second plating region 19, and the modulus of a region corresponding to the first plating region 17 is greater than that of a region corresponding to the second plating region 19, so that the corrugated portion 14 is divided into a first region 18 corresponding to the first plating region 17, a second region 20 corresponding to the second plating region 19, and a third region 21 located outside the metal plating layer. Wherein the modulus of the second region 20 is between the modulus of the third region 21 and the modulus of the first region 18, and the modulus of the first region 18 is between the modulus of the second region 20 and the modulus of the dome 12. The design of adding the metal coating on the corrugated ring part 14 can more specifically solve the problem of medium-frequency distortion of the product, and is beneficial to reducing the medium-frequency distortion.
The material of the metal plating layer can be titanium, nickel, silver and gold, preferably titanium metal, and each plating layer region of the metal plating layer can be made of the same material or different materials.
In the illustrated embodiment, the metal plating extends from the connection between the globe top 12 and the corrugated rim portion 14 toward the outside of the corrugated rim portion 14, i.e., the first region 18 is located between the second region 20 and the globe top 12, and the second region 20 is located between the third region 21 and the first region 18, so that the corrugated rim portion 14 forms three continuous regions with different rigidities.
Preferably, the width ratio of the third region 21 without the plating layer on the loop part 14 to the sum of the first region 18 and the second region 20 with the plating layer is 1:5~5:1. the modulus of the first region 18 is greater than ten percent and less than ninety percent of the modulus of the second region 20 and the modulus of the second region 20 is greater than ten percent and less than ninety percent of the modulus of the third region 21 and less than ninety percent of the modulus of the first region 18. The thicknesses of the first plating layer region 17 and the second plating layer region 19 are 0.02um to 2um, and the thicknesses of the metal plating layers can be determined according to the actual requirements of products.
In some embodiments, the first plating region 17 and/or the second plating region 19 can also each be configured as a plurality of gradient layers, the plurality of gradient layers of the first plating region 17 can further divide the first region 18 into a plurality of sub-regions, and the plurality of gradient layers of the second plating region 19 can further divide the second region 20 into a plurality of sub-regions. The materials of the gradient layers may be the same or different. The multiple coating regions of the metal coating are further divided into multiple gradients, so that a product performance curve is smoother, and the occurrence of peak valleys of the performance curve is effectively reduced.
Further, in the direction of the diaphragm 10 from the outside to the inside, the thicknesses of the plurality of gradient layers increase gradually in sequence, and the widths of the plurality of gradient layers may be the same or different, which is not particularly limited in this application. The modulus of the sub-regions corresponding to the multiple gradient layers increases in sequence, preferably, the modulus of the sub-region corresponding to one gradient layer is greater than ten percent of the modulus of the sub-region corresponding to the adjacent outer gradient layer and less than ninety percent of the modulus of the sub-region corresponding to the adjacent inner gradient layer.
The whole diaphragm 10 is set to different areas with sequentially enhanced rigidity from outside to inside, so that the obtained distortion curve of the product is integrally lower and smoother, and the problems that the conventional diaphragm is only provided with a flexible part and a rigid part, and the two areas are too single, so that the low frequency to the high frequency is excessively poor, the distortion curve is not smooth and the like are solved.
In the illustrated embodiment, the corners of the collar portion 14 are provided with reinforcing ribs 26, which may be used to increase the support strength of the corners. Specifically, a plurality of ribs 26 are provided at four corner positions of the annular flange portion 14. Two ends of each reinforcing rib 26 are respectively located at the inner edge and the outer edge of the hinge part 14, and a plurality of reinforcing ribs 26 are distributed at intervals.
In some embodiments, the bead 26 may not be metallized, but rather only the area of the edge 14 outside the bead 26.
In other embodiments, the metal coating may be provided on both the stiffener 26 and the edge portion 14 in regions other than the stiffener 26. The metal plating may be provided in the same manner or in different manners in the rib 26 and the edge portion 14 in the region other than the rib 26. In the embodiment shown in fig. 1, the reinforcing rib 26 is regarded as a part of the grommet part 14, and the reinforcing rib 26 and the region of the grommet part 14 located outside the reinforcing rib 26 are provided with the metal plating in the same manner. In the embodiment shown in fig. 1, the first plating layer region 17 and the second plating layer region 19 cover both the bead 26 and the corrugated portion 14 in the region outside the bead 26.
In other embodiments, as shown in fig. 2, the metal plating layer 28 may be provided only on the reinforcing ribs 26, and the metal plating layer may not be provided on the folded-ring portion 14 in the region outside the reinforcing ribs 26. The plating structure provided on the rib 26 can refer to the metal plating structure provided on the corrugated portion 14, and will not be described in detail here. In this embodiment, the metal plating 28 covers the entire patterned surface of the ribs 26.
Set up the support intensity that the strengthening rib 26 can wholly promote annular part 14 on annular part 14, this application sets up metal coating on strengthening rib 26, increases the rigidity intensity of strengthening rib 26 cladding material part, can further promote support intensity, reduces polarization, the resonance scheduling problem of vibrating diaphragm, reduces nonlinear harmonic and produces, reduces nonlinear distortion, is favorable to reducing product low frequency distortion.
The application also provides a preparation method of the vibrating diaphragm 10, and specifically, a metal coating is plated on the vibrating diaphragm 10 in a vacuum plating mode. The preparation method comprises the following steps:
s1: manufacturing a plating layer tool, so that the plating layer tool covers the area of the diaphragm 10 where the plating layer is not formed and exposes the area where the plating layer is required to be manufactured;
s2: and (4) using vacuum plating equipment to manufacture a plating layer.
More specifically, the preparation method comprises the following steps:
s1: providing a diaphragm material, and manufacturing the diaphragm material into a diaphragm 10, so that the diaphragm 10 comprises a diaphragm body part and a fixing part 15 connected to the periphery of the diaphragm body part;
s2: manufacturing a first coating tool, so that the first coating tool covers the area of the vibrating diaphragm body part where no coating is formed and exposes the area where the coating needs to be manufactured;
s3: using vacuum plating equipment to manufacture a plating layer, and plating a metal plating layer on the region of the vibrating diaphragm body part needing to manufacture the plating layer in S2, wherein the metal plating layer comprises a first plating layer region and a second plating layer region positioned on the outer side of the first plating layer region;
s4: manufacturing a second plating layer tool, so that the second plating layer tool covers the second plating layer area and exposes the first plating layer area;
s5: and (4) performing plating production by using vacuum plating equipment, and performing plating production on the first plating region in S4, so that the modulus of the region corresponding to the first plating region is greater than that of the region corresponding to the second plating region.
By adopting the preparation method, the metal plating layer can be plated on the area without the reinforcing ribs 26 on the folded ring part 14, and then the metal plating layer is plated on the reinforcing ribs 26 on the folded ring part 14 by using the preparation method; or, a metal plating layer is plated on the reinforcing ribs 26 on the folded ring part 14, and then a metal plating layer is plated on the areas of the folded ring part 14 where the reinforcing ribs 26 are not arranged; alternatively, the metal plating layer is simultaneously applied to the rib 26 and the region of the edge portion 14 where the rib 26 is not provided. The plating tool can be designed and manufactured to be adaptive according to actual process requirements and plating attachment sequence, and corresponding areas on the folded ring part 14 can be plated.
Several embodiments of vacuum plating on the diaphragm 10 are described below.
Example one
The preparation method comprises the following steps:
1. manufacturing a required corrugated ring part and a required ball top part by using a vibrating diaphragm material through a hot press molding process;
2. manufacturing a first plating tool for covering the third area 21 and exposing the second area 20 and the first area 18;
3. using vacuum plating equipment to manufacture a plating layer, wherein the thickness of the plating layer is controlled to be 0.5um;
4. manufacturing a second plating tool for covering the second area 20 and exposing the first area 18;
5. using vacuum plating equipment to manufacture a plating layer, wherein the thickness of the plating layer is controlled to be 0.5um;
the diaphragm structure of the embodiment shown in fig. 1 is manufactured, and includes: a third region 21 from outside to inside, a second region 20 (with a coating thickness of 0.5 um), a first region 18 (with a coating thickness of 1 um), and a dome 12.
Example two
The preparation method comprises the following steps:
1. manufacturing a required corrugated ring part and a required ball top part by using a vibrating diaphragm material through a hot press molding process;
2. manufacturing a first plating layer tool for covering the third area and exposing the second area and the first area;
3. using vacuum plating equipment to manufacture a plating layer, wherein the thickness of the plating layer is controlled to be 0.5um;
4. manufacturing a second plating layer tool for covering the second area and exposing the first area;
5. using vacuum plating equipment to manufacture a plating layer; the thickness of the plating layer is controlled to be 0.5um;
6. manufacturing a third plating layer tool for covering the subarea corresponding to the second gradient layer of the first area and exposing the subarea corresponding to the first gradient layer of the first area;
7. manufacturing a coating by using vacuum plating equipment; the thickness of the plating layer is controlled to be 0.5um;
the diaphragm structure that makes includes: a third region from outside to inside, a second region (the thickness of the plating layer is 0.5 um), a subregion corresponding to the second gradient layer of the first region (the thickness of the plating layer is 1 um), a subregion corresponding to the first gradient layer of the first region (the thickness of the plating layer is 1.5 um), and a ball top 12.
EXAMPLE III
The preparation method comprises the following steps:
1. manufacturing a required corrugated ring part and a required ball top part by using a vibrating diaphragm material through a hot press molding process;
2. manufacturing a reinforcing rib plating tool for covering the area of the folded ring part 14 except the reinforcing ribs 26 and exposing the reinforcing ribs 26;
3. using vacuum plating equipment to manufacture a plating layer, wherein the thickness of the plating layer is controlled to be 0.5um;
the diaphragm structure thus produced is a structure in which the reinforcing ribs 26 with plating are bonded to the region other than the reinforcing ribs 26 on the flexure portion 14.
This application still provides a sound generating mechanism, and this sound generating mechanism disposes the vibrating diaphragm that has porous structure of this application, and this vibrating diaphragm sets up in the sound generating mechanism main part, the vibrating diaphragm is configured to can vibrate the sound production.
The vibrating diaphragm that this application was made increases the rigidity cladding material on flexible portion, and its modulus is between flexible portion and rigidity portion, plays the transition effect, can more have corresponding solution product low frequency distortion problem. The rigid plating layer is made in a vacuum plating mode, the rigid plating layer can be divided into a plurality of gradients, the modulus of the rigid plating layer is sequentially increased from outside to inside, and the rigidity of the flexible part is divided into a plurality of gradients, so that a distortion curve of a product is smoother, and the problem of peak rise of the distortion curve can be effectively reduced. The reinforcing rib is added with the rigid coating and is manufactured in a vacuum plating mode so as to increase the rigidity strength of the reinforcing rib, and the increase of the rigidity strength of the reinforcing rib is beneficial to reducing the low-frequency distortion of the product.
Fig. 3 is a graph comparing the nonlinear distortion curves of the diaphragm of the present application and the conventional diaphragm. In the figure, the non-linear distortion curve of the prior non-coating diaphragm is a solid curve; a gradient metal coating vibrating diaphragm is added, the nonlinear distortion curve of the vibrating diaphragm is a dotted curve in the figure, and the nonlinear distortion is reduced by about 4% compared with the vibrating diaphragm without the coating; the distortion curve of the diaphragm added with two gradient metal coatings is a point-shaped curve in the figure, and the nonlinear distortion is further reduced by about 3 percent on the basis of the distortion curve added with one gradient metal coating.
To sum up, the application provides a vibrating diaphragm and preparation method, sound generating mechanism, through set up the metal coating on vibrating diaphragm body portion, make vibrating diaphragm body portion divide into the different at least three region of modulus by metal coating, and, the modulus in at least three region increases progressively in vibrating diaphragm outside-in's direction, make the vibrating diaphragm rigidity strengthen gradually in outside-in's direction, effectively solved conventional vibrating diaphragm and only had flexible portion and rigidity portion, two regional too single situation, thereby lead to from the low frequency to the high frequency excessively not good, distortion curve scheduling problem. The metal coating can be prepared by a vacuum plating mode, the preparation process is simple and stable, and the manufacturing cost of the product can be reduced. This application is through setting up metal coating on vibrating diaphragm body portion and divide into the different three and above gradient of rigidity with vibrating diaphragm body portion, and this kind of design does benefit to whole support intensity under the improvement vibrating diaphragm vibration state, and the holding power is more balanced, and the nonlinear harmonic when being favorable to reducing the vibration produces to reduce the nonlinear distortion of speaker, promote product acoustic performance.
The concepts described herein may be embodied in other forms without departing from the spirit or characteristics thereof. The particular embodiments disclosed should be considered illustrative rather than limiting. The scope of the application is, therefore, indicated by the appended claims rather than by the foregoing description. Any changes which come within the meaning and range of equivalency of the claims are to be embraced within their scope.
Claims (12)
1. The diaphragm is characterized by comprising a diaphragm body part and a fixing part connected to the periphery of the diaphragm body part, wherein a metal coating is arranged on the diaphragm body part, the metal coating comprises a first coating region and a second coating region positioned on the outer side of the first coating region, and the modulus of a region corresponding to the first coating region is greater than that of a region corresponding to the second coating region.
2. The diaphragm of claim 1, wherein the diaphragm body portion includes a globe top portion and a corrugated portion connected to a periphery of the globe top portion, and the metal plating is disposed on the corrugated portion and/or the globe top portion.
3. The diaphragm of claim 2, wherein the metal plating layer is disposed on the top of the ball and/or between the top of the ball and the loop portion, and the thickness of the metal plating layer is 0.5um to 2um.
4. The diaphragm of claim 2, wherein the metal plating is disposed on the hinge portion, and the hinge portion is divided into a first region corresponding to the first plating region, a second region corresponding to the second plating region, and a third region located outside the metal plating, wherein the modulus of the second region is between the modulus of the third region and the modulus of the top of the ball.
5. The diaphragm of claim 4, wherein the ratio of the sum of the widths of the first region and the second region to the width of the third region is 1:5~5:1.
6. the diaphragm of claim 4, wherein the modulus of the second region is greater than ten percent and less than ninety percent of the modulus of the third region, and wherein the modulus of the first region is greater than ten percent and less than ninety percent of the modulus of the second region and less than ninety percent of the modulus of the ball top.
7. The diaphragm of claim 2, wherein the first plating region is configured as a plurality of gradient layers that divide a region corresponding to the first plating region into a plurality of sub-regions; and/or the second plating layer region is configured into a plurality of gradient layers, and the plurality of gradient layers divide the region corresponding to the second plating layer region into a plurality of sub-regions.
8. The diaphragm of claim 7, wherein the thicknesses of the gradient layers increase sequentially in an outside-in direction of the diaphragm, and the moduli of the subregions corresponding to the gradient layers increase sequentially.
9. The diaphragm of claim 8, wherein the modulus of the subregion associated with one of the gradient layers is greater than ten percent and less than ninety percent of the modulus of the subregion associated with the adjacent outer gradient layer.
10. The diaphragm according to any one of claims 2 to 9, wherein the thickness of the metal plating layer provided on the corrugated rim portion is 0.02um to 2um.
11. The diaphragm according to any one of claims 2-9, wherein a corner portion of the bending portion is provided with a reinforcing rib, and the metal plating is correspondingly disposed on the reinforcing rib.
12. A sound-generating device comprising a sound-generating device body and the diaphragm of any one of claims 1 to 11, wherein the diaphragm is disposed on the sound-generating device body, and the diaphragm is configured to vibrate and generate sound.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211512813.XA CN115604631B (en) | 2022-11-30 | 2022-11-30 | Vibrating diaphragm, preparation method thereof and sound production device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211512813.XA CN115604631B (en) | 2022-11-30 | 2022-11-30 | Vibrating diaphragm, preparation method thereof and sound production device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115604631A true CN115604631A (en) | 2023-01-13 |
| CN115604631B CN115604631B (en) | 2023-03-14 |
Family
ID=84852554
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211512813.XA Active CN115604631B (en) | 2022-11-30 | 2022-11-30 | Vibrating diaphragm, preparation method thereof and sound production device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115604631B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010206560A (en) * | 2009-03-04 | 2010-09-16 | Panasonic Corp | Speaker |
| CN110636416A (en) * | 2019-10-12 | 2019-12-31 | 安克创新科技股份有限公司 | Vibrating diaphragm folding ring |
| CN210641063U (en) * | 2019-11-11 | 2020-05-29 | 歌尔科技有限公司 | A electrically conductive vibrating diaphragm and sound generating mechanism for sound generating mechanism |
| CN114286261A (en) * | 2021-12-30 | 2022-04-05 | 歌尔股份有限公司 | Vibrating diaphragm and preparation method thereof, sound production device and electronic equipment |
-
2022
- 2022-11-30 CN CN202211512813.XA patent/CN115604631B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010206560A (en) * | 2009-03-04 | 2010-09-16 | Panasonic Corp | Speaker |
| CN110636416A (en) * | 2019-10-12 | 2019-12-31 | 安克创新科技股份有限公司 | Vibrating diaphragm folding ring |
| CN210641063U (en) * | 2019-11-11 | 2020-05-29 | 歌尔科技有限公司 | A electrically conductive vibrating diaphragm and sound generating mechanism for sound generating mechanism |
| CN114286261A (en) * | 2021-12-30 | 2022-04-05 | 歌尔股份有限公司 | Vibrating diaphragm and preparation method thereof, sound production device and electronic equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115604631B (en) | 2023-03-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113573215A (en) | Loudspeaker diaphragm, loudspeaker and audio equipment | |
| US9473856B2 (en) | Piezoelectric electroacoustic transducer | |
| WO2013063932A1 (en) | Loudspeaker diaphragm and loudspeaker using same | |
| CN115604631B (en) | Vibrating diaphragm, preparation method thereof and sound production device | |
| GB2057224A (en) | Loudspeaker diaphragm | |
| CN111711891B (en) | Dome, loudspeaker monomer and sound generating mechanism | |
| CN110972034B (en) | Vibrating diaphragm and sound generating device | |
| CN208609173U (en) | A kind of vibrating diaphragm component and sounding device | |
| CN213073068U (en) | Loudspeaker diaphragm and loudspeaker | |
| CN110809221A (en) | Vibrating diaphragm and loudspeaker | |
| CN212392993U (en) | Vibration system and sound production monomer with same | |
| CN212936182U (en) | Sound production device | |
| CN110944271B (en) | Reinforcing part for sound generating device, vibration plate and sound generating device | |
| CN217389008U (en) | Electroacoustic transducer diaphragm | |
| CN216905276U (en) | Vibrating diaphragm | |
| CN217388986U (en) | Novel composite vibrating diaphragm | |
| CN218162837U (en) | Novel combined type sound membrane | |
| KR101142252B1 (en) | Diaphragm for acoustic transducer | |
| JP3962135B2 (en) | Reverse dome type speaker | |
| CN212086468U (en) | Sound producing device | |
| CN220528226U (en) | Flat loudspeaker diaphragm with elastic folding ring | |
| CN220858392U (en) | Positioning support piece and automobile loudspeaker | |
| CN221354479U (en) | Vibrating diaphragm and miniature loudspeaker monomer | |
| CN210670532U (en) | Drum paper and loudspeaker | |
| CN117177139A (en) | Acoustic membrane layer, loudspeaker assembly, loudspeaker and electronic equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |