CN110636416B - Vibrating diaphragm ring - Google Patents
Vibrating diaphragm ring Download PDFInfo
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- CN110636416B CN110636416B CN201910969118.8A CN201910969118A CN110636416B CN 110636416 B CN110636416 B CN 110636416B CN 201910969118 A CN201910969118 A CN 201910969118A CN 110636416 B CN110636416 B CN 110636416B
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- 230000008859 change Effects 0.000 claims description 31
- 239000000463 material Substances 0.000 claims description 17
- 230000000694 effects Effects 0.000 description 13
- 239000011324 bead Substances 0.000 description 4
- 238000005452 bending Methods 0.000 description 4
- 230000003247 decreasing effect Effects 0.000 description 3
- 239000003292 glue Substances 0.000 description 3
- 239000004696 Poly ether ether ketone Substances 0.000 description 2
- 239000004697 Polyetherimide Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229920003207 poly(ethylene-2,6-naphthalate) Polymers 0.000 description 2
- 229920002530 polyetherether ketone Polymers 0.000 description 2
- 229920001601 polyetherimide Polymers 0.000 description 2
- -1 polyethylene naphthalate Polymers 0.000 description 2
- 239000011112 polyethylene naphthalate Substances 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R7/00—Diaphragms for electromechanical transducers; Cones
- H04R7/16—Mounting or tensioning of diaphragms or cones
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
Abstract
The application provides a vibrating diaphragm folding ring. The vibrating diaphragm is rolled over the ring and is included the first linkage segment, arch section and the second linkage segment of connecting in order by outside-in, and the elastic coefficient of the summit department of arch section is biggest, and the elastic coefficient of arch section reduces by the inside outside both sides of summit department, and wherein, the inboard is that the vibrating diaphragm is rolled over the ring and is close to one side of the center of vibrating diaphragm and is rolled over the ring, and the outside is that the vibrating diaphragm is rolled over the ring and is kept away from one side of the center of vibrating diaphragm and is rolled over the ring. The application solves the problem of poor total harmonic distortion performance of the loudspeaker system in the prior art.
Description
Technical Field
The application relates to the technical field of acoustic equipment, in particular to a vibrating diaphragm bending ring.
Background
In acoustic design, total harmonic distortion is one of important criteria for evaluation of sound quality, and has been receiving a great deal of attention. The nonlinear model of Klippel (speaker analysis tool) describes the generation mechanism of total harmonic distortion in detail. The total harmonic distortion is caused by the nonlinearity of the horn system, and whether the elastic coefficient curve (Kms (x)) is straight symmetrical directly affects the total harmonic distortion performance of the horn unit and the system. Generally, it is desirable to design a straight line, but in practical applications, due to the thermal effect of the voice coil and the converging effect of the edge glue on the diaphragm when the amplitude is large, the elastic coefficient of the whole system tends to change, so that poor total harmonic distortion performance is obtained.
That is, the horn system of the prior art has a problem of obtaining poor total harmonic distortion performance.
Disclosure of Invention
The application mainly aims to provide a vibrating diaphragm bending ring so as to solve the problem that a loudspeaker system in the prior art has poor total harmonic distortion performance.
In order to achieve the above object, according to one aspect of the present application, there is provided a diaphragm gimbal including a first connection section, an arch section and a second connection section sequentially connected from outside to inside, and an elastic coefficient at a vertex of the arch section is maximum, the elastic coefficient of the arch section decreases from the vertex to both sides from inside to outside, wherein an inner side means a side of the diaphragm gimbal near a center of the diaphragm gimbal, and an outer side means a side of the diaphragm gimbal away from the center of the diaphragm gimbal.
Further, the elastic coefficients of the arch segments are symmetrically distributed with respect to the apex.
Further, the arch section includes a region with a maximum elastic coefficient and a plurality of regions with varying elastic coefficients located at both sides of the region with the maximum elastic coefficient, the apex deviates from the first preset distance L1 to the side where the first connecting section is located, the apex deviates from the second preset distance L2 to the side where the second connecting section is located, and a region between the first preset distance L1 and the second preset distance L2 constitutes the region with the maximum elastic coefficient.
Further, the first preset distance L1 is equal to the second preset distance L2, and the ratio of the first preset distance L1 to the distance L between the first connection section and the second connection section is greater than or equal to 0.08 and less than or equal to 0.125.
Further, an elastic coefficient change region adjacent to the elastic coefficient maximum region among the plurality of elastic coefficient change regions is a second-strongest region, and a ratio of an elastic coefficient of the second-strongest region to an elastic coefficient of the elastic coefficient maximum region is 0.8 or more and 0.95 or less.
Further, the vertex deviates from a third preset distance L3 to the side where the first connecting section is located, a secondary strong area is formed by an area between the third preset distance L3 and the first preset distance L1, the third preset distance L3 is larger than the first preset distance L1, and the ratio of the third preset distance L3 to the distance L is larger than or equal to 0.125 and smaller than or equal to 0.25; and/or the vertex deviates from a fourth preset distance L4 to the side where the second connecting section is located, the area between the fourth preset distance L4 and the second preset distance L2 forms a secondary strong area, the fourth preset distance L4 is greater than the second preset distance L2, and the ratio of the fourth preset distance L4 to the distance L is greater than or equal to 0.125 and less than or equal to 0.25.
Further, the elastic coefficient change region adjacent to the first connection section and/or the second connection section among the plurality of elastic coefficient change regions is a weak elastic coefficient region, and a ratio of an elastic coefficient of the weak elastic coefficient region to an elastic coefficient of the elastic coefficient maximum region is 0.6 or more and 0.95 or less.
Further, the vertex deviates from a fifth preset distance L5 to the side where the first connecting section is located, a weak elasticity coefficient region is formed by a region between the fifth preset distance L5 and the first connecting section, and the ratio of the fifth preset distance L5 to the distance L is more than or equal to 0.25 and less than or equal to 0.5; and/or the vertex deviates from a sixth preset distance L6 to the side where the second connecting section is located, the region between the sixth preset distance L6 and the second connecting section forms a weak elasticity coefficient region, and the ratio of the sixth preset distance L6 to the distance L is more than or equal to 0.25 and less than or equal to 0.5.
Further, the elastic coefficient materials of the regions with the maximum elastic coefficient and the plurality of regions with the changed elastic coefficient are different; or the elastic coefficient materials of the area with the maximum elastic coefficient and the plurality of elastic coefficient change areas are the same, the arch section is provided with patterns, and at least one of the shapes, the heights and the arrangement densities of the patterns in the area with the maximum elastic coefficient and the plurality of elastic coefficient change areas are different.
Further, the elastic coefficient materials of the region with the largest elastic coefficient and the plurality of elastic coefficient change regions are the same, the larger the thickness of the diaphragm folding ring is, the larger the elastic coefficient of the diaphragm folding ring is, and the thickness of the arch-shaped section in the region with the largest elastic coefficient is larger than the thickness of the arch-shaped section in the plurality of elastic coefficient change regions.
By applying the technical scheme of the application, the vibrating diaphragm folding ring comprises a first connecting section, an arch section and a second connecting section which are sequentially connected from outside to inside, the elastic coefficient of the apex of the arch section is maximum, the elastic coefficient of the arch section is reduced from the apex to the inner side and the outer side, wherein the inner side refers to one side of the vibrating diaphragm folding ring close to the center of the vibrating diaphragm folding ring, and the outer side refers to one side of the vibrating diaphragm folding ring far away from the center of the vibrating diaphragm folding ring.
The elastic coefficient of the diaphragm folding ring is set to be the largest at the vertex of the arched section of the diaphragm folding ring, and the elastic coefficient is reduced from the vertex to two sides, so that the elastic coefficient of the two sides of the diaphragm folding ring is increased under the converging action of the edge glue on the diaphragm folding ring when the thermal effect and the amplitude of the voice coil are larger, and the elastic coefficients of the diaphragm folding ring tend to be the same. While the spring rate at the apex of the arcuate segment is less affected by the thermal effects and amplitude of the voice coil. The spring rate of the arcuate segment along the sides away from the apex is greatly affected by the thermal effects and amplitude of the voice coil. Therefore, the elastic coefficient of the arch section is reduced from the vertex to the inner side and the outer side, so that the Kms curve of the obtained system tends to be straight, and the problem that the loudspeaker system has poor total harmonic distortion performance is solved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application. In the drawings:
FIG. 1 is a schematic view showing the overall structure of a diaphragm gimbal according to an alternative embodiment of the present application; and
FIG. 2 shows a graph of the Kms curve of the diaphragm gimbal itself (solid line) and the Kms (dashed line) of the system target of the present application;
FIG. 3 shows a graph of Kms for the diaphragm fold ring of the present application itself;
FIG. 4 is a schematic view showing the relationship between the thicknesses of the points of the diaphragm ring in the first embodiment;
FIG. 5 is a schematic diagram showing the pattern on the diaphragm ring in the third embodiment;
fig. 6 shows a schematic structural diagram of another pattern on the diaphragm gimbal in the third embodiment.
Wherein the above figures include the following reference numerals:
10. a first connection section; 20. an arch segment; 21. a vertex; 30. and a second connection section.
Detailed Description
It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other. The application will be described in detail below with reference to the drawings in connection with embodiments.
It is noted that all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs unless otherwise indicated.
In the present application, unless otherwise indicated, terms of orientation such as "upper, lower, top, bottom" are used generally with respect to the orientation shown in the drawings or with respect to the component itself in the vertical, upright or gravitational direction; also, for ease of understanding and description, "inner and outer" refers to inner and outer relative to the profile of each component itself, but the above-mentioned orientation terms are not intended to limit the present application.
In order to solve the problem that a loudspeaker system in the prior art has poor total harmonic distortion performance, the application provides a diaphragm bending ring.
As shown in fig. 1, the diaphragm gimbal includes a first connecting section 10, an arch section 20 and a second connecting section 30 sequentially connected from outside to inside, and the elastic coefficient of the arch section 20 at the vertex 21 is the largest, and the elastic coefficient of the arch section 20 decreases from the vertex 21 to both sides from inside to outside, wherein the inner side refers to a side of the diaphragm gimbal near the center of the diaphragm gimbal, and the outer side refers to a side of the diaphragm gimbal far from the center of the diaphragm gimbal.
The elastic coefficient of the diaphragm folding ring is set to be the largest at the vertex 21 of the arched section 20 of the diaphragm folding ring, and the elastic coefficient is reduced from the vertex 21 to two sides, so that the elastic coefficient of the two sides of the diaphragm folding ring is increased under the beam-contracting effect of the edge glue on the diaphragm folding ring when the thermal effect and the amplitude of the voice coil are larger, and the elastic coefficients of the diaphragm folding ring tend to be the same. While the spring rate at the apex of the arcuate segment 20 is less affected by the thermal effects and amplitude of the voice coil. The spring rate of the arcuate segment 20 along the sides away from the apex 21 is greatly affected by the thermal effects and amplitude of the voice coil. Therefore, the elasticity coefficient of the arch-shaped section 20 is reduced from the vertex 21 to the inner side and the outer side, so that the Kms curve of the obtained system tends to be straight, and the problem that the poor total harmonic distortion performance of the loudspeaker system is obtained is solved.
Alternatively, the elastic coefficients of the arch segments 20 are symmetrically distributed with respect to the apex 21. The elastic coefficient at the apex 21 is the largest and the elastic coefficients on both sides of the apex are reduced. Since the Kms curve obtained by the influence of the thermal effect and the amplitude of the voice coil on the diaphragm gimbal is symmetrically distributed with the Kms at the vertex 21 as a reference when the elastic coefficients of the arch segments 20 are consistent in the whole segment range, the obtained Kms curve tends to be straight by setting the elastic coefficients of the arch segments 20 to be symmetrical, and better total harmonic distortion performance is obtained.
Specifically, the arch segment 20 includes a region with a maximum elastic coefficient and a plurality of regions with varying elastic coefficients located at both sides of the region with the maximum elastic coefficient, the apex 21 deviates from the first preset distance L1 to the side where the first connecting segment 10 is located, the apex 21 deviates from the second preset distance L2 to the side where the second connecting segment 30 is located, and the region between the first preset distance L1 and the second preset distance L2 forms the region with the maximum elastic coefficient. The elastic coefficient of the elastic coefficient change areas is smaller than that of the elastic coefficient maximum area, so that the total harmonic distortion of the system can be reduced, and better sound quality can be obtained. Since the thermal effect and the amplitude of the voice coil are less affected in a section of the diaphragm at the apex 21 of the diaphragm gimbal, the section of the diaphragm is set to be the region with the maximum elastic coefficient, and the influence on the Kms curve of the system is less.
Optionally, the first preset distance L1 is equal to the second preset distance L2, and a ratio of the first preset distance L1 to the distance L between the first connection section 10 and the second connection section 30 is greater than or equal to 0.08 and less than or equal to 0.125. The first preset distance L1 is equal to the second preset distance L2, that is, the same distance extends to the inner side and the outer side with the vertex 21 as the center, so as to form the area with the maximum elastic coefficient. The region of maximum modulus of elasticity occupies between 16% and 25% of the whole arch segment 20.
In this embodiment, the ratio of the first preset distance L1 to the distance L is 0.1. That is, the maximum spring rate region is one fifth of the total arcuate segment 20.
Further, an elastic coefficient change region adjacent to the elastic coefficient maximum region among the plurality of elastic coefficient change regions is a second-strongest region, and a ratio of an elastic coefficient of the second-strongest region to an elastic coefficient of the elastic coefficient maximum region is 0.8 or more and 0.95 or less. The influence of the thermal effect and the amplitude of the voice coil on the sub-strong area is larger than that of the area with the largest elastic coefficient, so that after the elastic coefficient of the sub-strong area is reduced so that the vibrating diaphragm ring is influenced by the thermal effect and the amplitude of the voice coil, the Kms curve of the system tends to be flat at the area with the largest elastic coefficient and the sub-strong area, and better total harmonic distortion performance is further obtained. Whereas the Kms curve obtained with the elastic coefficient of the second strongest region decreasing to between 80% and 95% of the maximum elastic coefficient region is relatively flat.
Optionally, the vertex 21 deviates from a third preset distance L3 to the side where the first connecting section 10 is located, a region between the third preset distance L3 and the first preset distance L1 forms a secondary strong region, the third preset distance L3 is greater than the first preset distance L1, the ratio of the third preset distance L3 to the distance L is greater than or equal to 0.125 and less than or equal to 0.25, the vertex 21 deviates from a fourth preset distance L4 to the side where the second connecting section 30 is located, a region between the fourth preset distance L4 and the second preset distance L2 forms a secondary strong region, the fourth preset distance L4 is greater than the second preset distance L2, and the ratio of the fourth preset distance L4 to the distance L is greater than or equal to 0.125 and less than or equal to 0.25. Next to the region of maximum elastic modulus is the next strongest region, and the next strongest regions are distributed on both the inside and outside of the region of maximum elastic modulus. Or the second strongest region is located in a region between the distance vertex 21 being greater than the first preset distance L1 and less than or equal to the third preset distance L3, and the distance vertex 21 being greater than the second preset distance L2 and less than or equal to the fourth preset distance L4.
In the present embodiment, the third preset distance L3 is equal to the fourth preset distance L4. In the present embodiment, the third preset distance L3 is equal to the fourth preset distance L4, that is, the second strongest region between the vertex 21 and the first connecting section 10 and the second strongest region between the vertex 21 and the second connecting section 30 are equal in size, so that the diaphragm gimbal is easy to manufacture, and better total harmonic distortion performance can be obtained.
Specifically, the elastic coefficient change region adjacent to the first connection section 10 and/or the second connection section 30 among the plurality of elastic coefficient change regions is a weak elastic coefficient region, and the ratio of the elastic coefficient of the weak elastic coefficient region to the elastic coefficient of the elastic coefficient maximum region is 0.6 or more and 0.95 or less. That is, the elastic coefficient change region between the secondary strong region and the first and second connection sections 10 and 30 is a weak elastic coefficient region. And the elastic coefficient of the weak elastic coefficient region is between 60% and 95% of the elastic coefficient of the region of maximum elastic coefficient. Therefore, the Kms curve of the system tends to be flat in the region with the maximum elastic coefficient, the region with the secondary strong elastic coefficient and the region with the weak elastic coefficient, and better total harmonic distortion performance can be obtained.
Alternatively, the vertex 21 deviates from the fifth preset distance L5 to the side where the first connecting section 10 is located, the region between the fifth preset distance L5 and the first connecting section 10 constitutes a weak elastic coefficient region, and the ratio of the fifth preset distance L5 to the distance L is greater than or equal to 0.25 and less than or equal to 0.5; and/or the vertex 21 deviates from the sixth preset distance L6 to the side where the second connecting section 30 is located, the region between the sixth preset distance L6 and the second connecting section 30 forms a weak elastic coefficient region, and the ratio of the sixth preset distance L6 to the distance L is greater than or equal to 0.25 and less than or equal to 0.5. The next strongest region is a weak elasticity coefficient region, and the weak elasticity coefficient regions are distributed on the inner side and the outer side of the region with the maximum elasticity coefficient. Or the second strongest region is located in a region between the distance vertex 21 being greater than the third preset distance L3 and less than or equal to the fifth preset distance L5, and a region between the distance vertex 21 being greater than the fourth preset distance L4 and less than or equal to the sixth preset distance L6.
In the present embodiment, the fifth preset distance L5 is equal to the sixth preset distance L6. In the present embodiment, the fifth preset distance L5 is equal to the sixth preset distance L6, that is, the weak elastic coefficient region between the vertex 21 and the first connecting section 10 and the weak elastic coefficient region between the vertex 21 and the second connecting section 30 are equal in size, so that the diaphragm gimbal is easy to manufacture, and better total harmonic distortion performance can be obtained.
As shown in FIG. 2, the Kms curve of the diaphragm bending ring is gradually decreased from the peak to two sides, the curve is in a downward curve characteristic, the reciprocal of the function curve is always less than 1, and the peak area corresponds to the area with the maximum elastic coefficient.
As shown in FIG. 3, the Kms curve of the diaphragm folding ring extends from the peak position to two sides, any side is in the range of 0-33.3% of rated power amplitude, the Kms change interval is between 80% and 95%, the Kms change interval is between 60% and 95% in the range of 33.3% and 66.7% of rated power amplitude.
Example 1
The elastic coefficient material of the elastic coefficient maximum region and the plurality of elastic coefficient change regions is the same, and the thickness of the arch segment 20 is different in the elastic coefficient maximum region and the plurality of elastic coefficient change regions. The elastic coefficient of the diaphragm folding ring changes along with the thickness of the diaphragm folding ring under the influence of the diaphragm folding ring material, and the larger the thickness of the diaphragm folding ring is, the larger the elastic coefficient of the diaphragm folding ring is. That is, the distribution of the elastic modulus of the arch segment 20 can be controlled by controlling the distribution of the thickness of the arch segment 20, the thickness of the arch segment 20 being greatest at the region of greatest elastic modulus, where the elastic modulus is also greatest.
Specifically, the thickness of the arch segment 20 is different in the region of maximum elastic coefficient and the second strongest region, and the ratio of the thickness of the arch segment 20 in the second strongest region to the thickness of the arch segment 20 in the region of maximum elastic coefficient is 0.895 or more and 0.975 or less. The thickness of the arch segment 20 in the second strongest region is between 89.5% and 97.5% of the thickness of the arch segment 20 in the region with the largest elastic coefficient, so that the elastic coefficient of the second strongest region is between 80% and 95% of the elastic coefficient of the region with the largest elastic coefficient, and the Kms curve obtained by the system tends to be flat, so that better total harmonic distortion performance is obtained.
Specifically, the thickness of the arch segment 20 is different in the region of maximum elastic coefficient and the region of weak elastic coefficient, and the ratio of the thickness of the arch segment 20 in the region of maximum elastic coefficient to the thickness of the arch segment 20 in the region of maximum elastic coefficient is 0.775 or more and 0.975 or less. The thickness of the arch-shaped segment 20 in the weak elastic coefficient region is between 77.5% and 97.5% of the thickness of the arch-shaped segment 20 in the elastic coefficient maximum region, so that the elastic coefficient of the weak elastic coefficient region is between 60% and 95% of the elastic coefficient maximum region, the Kms curve obtained by the system tends to be straight, and better total harmonic distortion performance is obtained.
The following is a practical example: in this embodiment, the ratio of the first preset distance L1 to the distance L is 0.125; the vertex 21 deviates from the third preset distance L3 to the side where the first connecting section 10 is located, and the area between the third preset distance L3 and the first preset distance L1 forms a secondary strong area, wherein the ratio of the third preset distance L3 to the distance L is 0.25; the vertex 21 deviates from the fifth preset distance L5 to the side of the first connecting section 10, the region between the fifth preset distance L5 and the first connecting section 10 forms a weak elasticity coefficient region, and the ratio of the fifth preset distance L5 to the distance L is 0.5; and the second preset distance L2 is equal to the first preset distance L1, the third preset distance L3 is equal to the fourth preset distance L4, the fifth preset distance L5 is equal to the sixth preset distance L6, and the proportional relationship of the thicknesses at each point of the arched section 20 is shown in table one.
TABLE one proportional relationship of thickness at each point of the arch segment 20 in example one
As can be seen from the above table one, the diaphragm gimbal used in the above example is made of one material, and the change of the elastic coefficient of the dome section 20 is controlled by controlling the change of the thickness of the dome section. The ratio of the thickness of each region of the arch segment 20 to the maximum thickness region is greater than or equal to 0.895 and less than or equal to 0.975, which results in a ratio of the elastic modulus of each region of the arch segment 20 to the maximum elastic modulus region (the maximum thickness region and the maximum elastic modulus region being the same region) of greater than or equal to 0.8 and less than or equal to 0.95. The ratio of the thickness of each region of the arch segment 20 to the maximum thickness region is greater than or equal to 0.775 and less than or equal to 0.975, which results in a ratio of the elastic modulus of each region of the arch segment 20 to the maximum elastic modulus region (the maximum thickness region and the maximum elastic modulus region being the same region) of greater than or equal to 0.6 and less than or equal to 0.95. The thickness of the arch-shaped segment 20 varies as shown in fig. 4, and the value below the vertical line on the arch-shaped segment 20 refers to the ratio of the distance between the position and the vertex 21 to the distance L, for example, 0.167, and the distance between the point where the vertical line is located and the vertex 21 to the distance L is 16.7%, and the values 0.333 and 0.5 are similar to the value 0.167, which are not listed here. And the values 1, 0.9, 0.8, and 0.7 above the arch segment 20 refer to the ratio of the thickness at that point to the thickness at the apex 21.
Example two
The difference from the first embodiment is that the thickness of the arch segment 20 is the same, but the arch segment 20 is not made of the same material, and the elastic modulus material of the region of maximum elastic modulus and the plurality of regions of varying elastic modulus are different. The elastic coefficient materials in the region with the maximum elastic coefficient, the region with the secondary strong elastic coefficient and the region with the weak elastic coefficient are different, so that the elastic coefficient of the region with the secondary strong elastic coefficient is 80-95% of the elastic coefficient of the region with the maximum elastic coefficient, and the elastic coefficient of the region with the weak elastic coefficient is 60-95% of the elastic coefficient of the region with the maximum elastic coefficient, so that the Kms curve obtained by the system tends to be straight, and better total harmonic distortion performance is obtained.
The following is a practical example: in this embodiment, a PEN (polyethylene naphthalate) material having a higher elastic modulus is used for the region of maximum elastic modulus so that the elastic modulus is maximized therein, and a PET (polyethylene terephthalate) material or a PEI (polyetherimide) material having a moderate elastic modulus is used for the secondary region so that the elastic modulus is between 80% and 95% of the elastic modulus of the region of maximum elastic modulus. Whereas PEEK (polyetheretherketone) material having a lower elastic modulus is used in the weak elastic modulus region so that the elastic modulus here is between 60% and 95% of the elastic modulus in the region of maximum elastic modulus.
Example III
The difference from the first embodiment is that the elastic coefficient material of the region of maximum elastic coefficient and the plurality of regions of varying elastic coefficient is the same, the thickness of the arch segment 20 is the same but the arch segment 20 is provided with the pattern, and at least one of the shape, height, arrangement density of the pattern in the region of maximum elastic coefficient and the plurality of regions of varying elastic coefficient is different. The elastic coefficients of the areas are different by controlling at least one of the shape, the height and the arrangement density of the patterns in the areas, but the elastic coefficient of the secondary strong area is required to be 80-95% of the elastic coefficient of the area with the largest elastic coefficient, and the elastic coefficient of the weak elastic coefficient area is required to be 60-95% of the elastic coefficient of the area with the largest elastic coefficient, so that the Kms curve obtained by the system tends to be straight, and better total harmonic distortion performance is obtained.
In a specific embodiment, the arch segment 20 is provided with the pattern as shown in fig. 5, and the widths of the patterns are the same, but the heights of the patterns are different, and the heights of the patterns gradually increase from the top 21 to both sides. For example, the height of the texture in the weak elastic modulus region is 1, the height of the texture in the sub-strong region is 0.7, and the height of the texture in the elastic modulus maximum region is 0.4. (note that, the height of the pattern refers to the ratio of the height of the pattern of each part to the height of the pattern of the weak elastic modulus region pattern) as shown in fig. 5, the distance from the connection between the first connecting section 10 and the arch section 20 to the connection between the second connecting section 30 and the arch section 20 is L2, and the middle point of L2 is the vertex 21, that is, in the present embodiment, the height of the pattern at the vertex 21 (the middle point of the pattern in the figure) is the lowest 0.4. The heights of the patterns from the middle point to the two sides are in an increasing trend, so that the elastic coefficients of all the areas are in a decreasing trend, and the proportional relationship of the heights of the patterns at each point of the arched section 20 is shown in the table two.
Table two proportional relationship of the heights of the pattern lines at each point of the arch segment 20 in the third embodiment
In this embodiment, the lines refer to bar-shaped ribs extending from the second connecting section 30 to the first connecting section 10.
Alternatively, the texture is an annular bead (not shown) disposed about the second connecting section 30, and the width and height of the annular bead are the same, but the annular bead varies in density from apex 21 to both sides, the density of the annular bead presenting an increasing trend, with minimal sealing at the apex 21. The pattern density in the weak elastic coefficient region is 2-3, the pattern density in the sub-strong region is 1-2, and the pattern density in the maximum elastic coefficient region is 1. Here, the density refers to a ratio of the density of each elastic modulus region to the pattern density of the pattern in the region of the maximum elastic modulus.
Alternatively, the shape of the ridge extending from the second connecting section 30 to the first connecting section 10 is different (as shown in fig. 6) so that the elastic coefficient is different at each region, for example, at the region of maximum elastic coefficient, the shape of the ridge is (vertical line), at the secondary strong region, the shape of the ridge is (vertical line bifurcation), and at the weak elastic coefficient region, the shape of the ridge is (bifurcation cross line), so that the elastic coefficient is different at different regions.
It will be apparent that the embodiments described above are merely some, but not all, embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present application without making any inventive effort, shall fall within the scope of the present application.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the application described herein may be implemented in sequences other than those illustrated or otherwise described herein.
The above description is only of the preferred embodiments of the present application and is not intended to limit the present application, but various modifications and variations can be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (9)
1. The utility model provides a vibrating diaphragm turn ring, its characterized in that includes first linkage segment (10), arch segment (20) and second linkage segment (30) that connect in order from outside to inside, just the elasticity coefficient of the summit (21) department of arch segment (20) is biggest, the elasticity coefficient of arch segment (20) is reduced by the inside and outside both sides of summit (21) department, wherein, the inboard means the vibrating diaphragm turn ring is close to the one side of vibrating diaphragm turn ring's center, the outside means the vibrating diaphragm turn ring is kept away from the one side of vibrating diaphragm turn ring's center, arch segment (20) include elasticity coefficient biggest region and a plurality of elasticity coefficient change regions that are located the inside and outside both sides of elasticity coefficient biggest region, by summit (21) to the one side that first linkage segment (10) is located deviates from first preset distance L1, by summit (21) to one side that second linkage segment (30) is located deviates from second preset distance L2, first preset distance L1 with second preset distance L2 between the region the biggest elasticity coefficient.
2. A diaphragm gimbal as claimed in claim 1, wherein the elastic coefficients of the arcuate segments (20) are symmetrically distributed with respect to the apex (21).
3. The diaphragm gimbal as claimed in claim 1, wherein the first preset distance L1 is equal to the second preset distance L2, and a ratio of the first preset distance L1 to a distance L between the first connecting section (10) and the second connecting section (30) is 0.08 or more and 0.125 or less.
4. The diaphragm gimbal according to claim 3, wherein the elastic coefficient change region adjacent to the elastic coefficient maximum region among the plurality of elastic coefficient change regions is a sub-strong region, and a ratio of an elastic coefficient of the sub-strong region to an elastic coefficient of the elastic coefficient maximum region is 0.8 or more and 0.95 or less.
5. The diaphragm gimbal according to claim 4, wherein,
the vertex (21) deviates from a third preset distance L3 to the side where the first connecting section (10) is located, a region between the third preset distance L3 and the first preset distance L1 forms the secondary strong region, the third preset distance L3 is larger than the first preset distance L1, and the ratio of the third preset distance L3 to the distance L is larger than or equal to 0.125 and smaller than or equal to 0.25; and/or
The vertex (21) deviates from a fourth preset distance L4 to the side where the second connecting section (30) is located, the area between the fourth preset distance L4 and the second preset distance L2 forms the secondary strong area, the fourth preset distance L4 is greater than the second preset distance L2, and the ratio of the fourth preset distance L4 to the distance L is greater than or equal to 0.125 and less than or equal to 0.25.
6. A diaphragm gimbal according to claim 3, wherein the elastic coefficient change region adjacent to the first connecting section (10) and/or the second connecting section (30) among the plurality of elastic coefficient change regions is a weak elastic coefficient region, and a ratio of an elastic coefficient of the weak elastic coefficient region to an elastic coefficient of the elastic coefficient maximum region is 0.6 or more and 0.95 or less.
7. The diaphragm gimbal as claimed in claim 6, wherein,
the vertex (21) deviates from a fifth preset distance L5 to the side where the first connecting section (10) is located, a region between the fifth preset distance L5 and the first connecting section (10) forms the weak elasticity coefficient region, and the ratio of the fifth preset distance L5 to the distance L is more than or equal to 0.25 and less than or equal to 0.5; and/or
And the vertex (21) deviates from a sixth preset distance L6 to the side where the second connecting section (30) is located, the region between the sixth preset distance L6 and the second connecting section (30) forms the weak elasticity coefficient region, and the ratio of the sixth preset distance L6 to the distance L is more than or equal to 0.25 and less than or equal to 0.5.
8. The diaphragm rim of any one of claims 1 to 7,
the elastic coefficient material of the elastic coefficient maximum area and the elastic coefficient change areas is different; or alternatively
The elastic coefficient maximum region and the elastic coefficient change regions are the same in elastic coefficient material, patterns are arranged on the arched section (20), and at least one of the shapes, the heights and the arrangement densities of the patterns in the elastic coefficient maximum region and the elastic coefficient change regions is different.
9. The diaphragm gimbal according to any one of claims 1 to 7, wherein the elastic coefficient maximum region and the plurality of elastic coefficient change regions are the same in material, the greater the thickness of the diaphragm gimbal, the greater the elastic coefficient of the diaphragm gimbal, and the thickness of the dome-shaped section (20) in the elastic coefficient maximum region is greater than the thickness of the dome-shaped section (20) in the plurality of elastic coefficient change regions.
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| CN201910969118.8A CN110636416B (en) | 2019-10-12 | 2019-10-12 | Vibrating diaphragm ring |
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| CN201910969118.8A CN110636416B (en) | 2019-10-12 | 2019-10-12 | Vibrating diaphragm ring |
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| CN110636416B true CN110636416B (en) | 2023-10-31 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111641902B (en) * | 2020-05-20 | 2021-09-28 | 瑞声科技(新加坡)有限公司 | Sounding device |
| CN115604631B (en) * | 2022-11-30 | 2023-03-14 | 共达电声股份有限公司 | Vibrating diaphragm, preparation method thereof and sound production device |
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