CN101203064B - Composite diaphragm and its making method - Google Patents
Composite diaphragm and its making method Download PDFInfo
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- CN101203064B CN101203064B CN200710125458XA CN200710125458A CN101203064B CN 101203064 B CN101203064 B CN 101203064B CN 200710125458X A CN200710125458X A CN 200710125458XA CN 200710125458 A CN200710125458 A CN 200710125458A CN 101203064 B CN101203064 B CN 101203064B
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- plane
- stereotyped
- dull
- flat board
- composite diaphragm
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- 239000002131 composite material Substances 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 title claims abstract description 9
- 239000002184 metal Substances 0.000 claims abstract description 26
- 229910052751 metal Inorganic materials 0.000 claims abstract description 26
- 238000004519 manufacturing process Methods 0.000 claims abstract description 12
- 239000005030 aluminium foil Substances 0.000 claims description 4
- 239000003292 glue Substances 0.000 claims description 3
- 239000000725 suspension Substances 0.000 abstract 3
- 239000011888 foil Substances 0.000 abstract 2
- 230000001105 regulatory effect Effects 0.000 description 4
- 238000000576 coating method Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
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- Diaphragms For Electromechanical Transducers (AREA)
Abstract
The invention discloses a composite diaphragm and a method of producing the composite diaphragm. The composite diaphragm mainly comprises a plate spherical cap and a soft suspension ring, the center of which is a plane, wherein, the plate spherical cap is on the soft suspension ring and the lower surface of the plate spherical cap touches the plane in the center of the soft suspension ring. The plate spherical cap comprises a middle plate and a metal foil attached to the middle plate. The metal foil can be glued on the upper surface of the middle plate or on the lower surface of the middle plate or on both the upper surface and the lower surface of the middle plate. The composite diaphragm of the invention has the advantages of simple manufacturing method and extended application of high frequency property and acoustic property of products of the composite diaphragm.
Description
[technical field]
The present invention relates to a kind of mini-sound device, particularly a kind of composite diaphragm structure of Microspeaker.
[background technology]
Improving constantly of As market, mobile phone are developed to the slimming direction gradually, and require its sound quality to become better and better, and this just requires the acoustical device in the mobile phone to develop towards small-sized, slim, high tone quality.Vibrating diaphragm is the core component of acoustical device such as loud speaker, and the requirement of its acoustical behavior is also just improved thereupon.
In correlation technique, the vibrating diaphragm of loud speaker and the top of the ball on it through hot forming, can't be taken into account the performance of low frequency and high frequency through commaterial simultaneously; When requiring lower low frequency, need softer material do vibrating diaphragm, and ring is when softer; Its ball top also can be softer, influences high frequency performance, therefore; Though the manufacture method of this vibrating diaphragm is simpler, be difficult to the performance of loud speaker is regulated.
In order to improve the acoustical behavior of acoustical devices such as loud speaker, the vibrating diaphragm of loud speaker is done improved more at present.
In the Chinese patent ZL 03136666.X of bulletin on March 7th, 2007, disclosed a kind of method that nano level metal film or oxide-film are plated in sputter on vibrating diaphragm and edge; This method can be regulated the performance of mini-sound device; But the thickness of coating of nano level metal film or oxide-film is thinner, and is not obvious to the regulating action of performance; And this coating process is complicated, and production cost is higher.
How to provide a kind of manufacturing approach simple, and can regulate the vibrating diaphragm of acoustical behavior, just become one of research topic.
[summary of the invention]
The object of the present invention is to provide a kind of manufacturing approach simple, and can improve the composite diaphragm and the manufacturing approach thereof of high frequency characteristics and sound property.
The objective of the invention is to realize like this:
A kind of composite diaphragm comprises that dull and stereotyped ball top is the soft ring on plane with the center, wherein, plane ball top be positioned at soft ring above, its lower surface is connected with the plane at soft ring center, and is dull and stereotyped and fit in the metal forming on the middle flat board in the middle of this flat board ball top comprises.The upper surface of flat board in the middle of metal forming can be glued at; The lower surface of flat board in the middle of also can being glued at; The upper and lower surface of flat board in the middle of also can being glued at simultaneously.The high-frequency cut-off frequency that the aluminium foil of ball top, plane upper surface can be regulated loud speaker, the size of aluminium foil is decided by the front end frequency bandwidth of loud speaker.
The present invention provides a kind of manufacturing approach of composite diaphragm in addition, and its step comprises: dull and stereotyped in the middle of providing one; At middle dull and stereotyped surface-coated glue; One metal forming is provided; Metal forming is connected with the middle dull and stereotyped surface of cementing; The middle flat board of metal-foil-clad is die-cut into the shape that needs, forms the ball top, plane of metal-foil-clad; It is the soft ring on plane that one center is provided; The middle flat board of metal-foil-clad is connected with the plane at soft ring center.
Compare with correlation technique, the present invention has the following advantages: in the middle of being glued at, metal forming on the flat board, make dull and stereotyped ball top have very high intensity, thus the high frequency characteristics of the product of this composite diaphragm of expanded application and sound property.In addition, the simpler of this composite diaphragm, production cost is lower.
[description of drawings]
Fig. 1 is the exploded view on first kind of execution mode midplane ball top of composite diaphragm of the present invention.
Fig. 2 is the part exploded view of first kind of execution mode of composite diaphragm of the present invention.
[embodiment]
Below in conjunction with accompanying drawing, composite diaphragm of the present invention and manufacturing approach thereof are elaborated.
Please with reference to Fig. 1-Fig. 2, composite diaphragm 1 comprises soft ring 2 and compares soft ring 2 for hard ball top, plane 3, wherein, is provided with a plane 21 at the center of soft ring 2.
Plane ball top 3 be positioned at soft ring 2 above, plane ball top 3 is connected the method connection of preferred gummed with the plane 21 at soft ring 2 centers; Plane ball top 3 can be all shapes that can realize, like circular, track shape, and square and polygon etc.
Plane ball top 3 be positioned at soft ring 2 above, its plane 21 with soft ring 2 centers is connected, in the middle of this flat board ball top 3 comprises dull and stereotyped 31 with fit in the middle of metal forming 32 on the flat board 31.
Middle dull and stereotyped 31 are made up of the lower material of density, for example, and wooden skin, sheet plastic or paper etc.This centre dull and stereotyped 31 be provided with upper surface 311 and with upper surface 311 opposing lower surface 312; Quality for flat board 31 in the middle of alleviating; Some perforates 313 can be played in this centre dull and stereotyped 31; Perforate 313 can be adopted multiple shape, like all holes that can realize such as square hole, circular hole, polygonal hole or track shape holes.This perforate 313 can adopt die punching to realize.
Metal forming 32 preferred aluminium foils can adopt the mode of gummed to link to each other first kind of execution mode of the present invention with middle dull and stereotyped 31: dull and stereotyped 31 upper surface 311 and lower surface 312 in the middle of metal forming 32 is glued at simultaneously; Another embodiment of the invention: dull and stereotyped 31 upper surface 311 (not shown) in the middle of metal forming 32 only is glued at; The third execution mode of the present invention in addition is: dull and stereotyped 31 lower surface 312 (not shown) in the middle of metal forming 32 only is glued at.
Through dull and stereotyped 31 gluing metal paper tinsels 32 in the centre, make dull and stereotyped ball top 3 have very high intensity, thus the high frequency characteristics and the sound property of the product of this composite diaphragm 1 of expanded application.
A kind of method of making composite diaphragm 1 may further comprise the steps:
The above is merely preferred embodiments of the present invention; Protection scope of the present invention is not exceeded with above-mentioned execution mode; As long as the equivalence that those of ordinary skills do according to disclosed content is modified or changed, all should include in the protection range of putting down in writing in claims.
Claims (7)
1. composite diaphragm; It comprises dull and stereotyped ball top and soft ring; It is characterized in that: flat board and the metal forming that is glued on the middle flat board in the middle of this flat board ball top comprises; The center of said soft ring is provided with a plane, and said dull and stereotyped ball top is positioned at the top of soft ring and is connected with the plane of soft ring.
2. composite diaphragm as claimed in claim 1 is characterized in that: flat board is provided with upper surface in the middle of said, and said metal forming and this upper surface are fitted.
3. composite diaphragm as claimed in claim 1 is characterized in that: flat board is provided with lower surface in the middle of said, and said metal forming and this lower surface are fitted, and the plane of said soft ring links to each other with the metal forming that said middle dull and stereotyped lower surface is fitted.
4. composite diaphragm as claimed in claim 1; It is characterized in that: flat board is provided with upper surface and lower surface in the middle of said; Said metal forming is fitted respectively with middle dull and stereotyped upper and lower surface, and the plane of said soft ring links to each other with the metal forming that said middle dull and stereotyped lower surface is fitted.
5. composite diaphragm as claimed in claim 4 is characterized in that: flat board is provided with perforate in the middle of said.
6. like claim 2,3 or 4 described composite diaphragms, it is characterized in that: said metal forming is an aluminium foil.
7. manufacturing approach like claim 1 or 4 described composite diaphragms, it is characterized in that: this method may further comprise the steps:
A. dull and stereotyped in the middle of providing one;
B. at middle dull and stereotyped surface-coated glue;
C., one metal forming is provided;
D. metal forming is connected with the middle dull and stereotyped surface of cementing;
E. the middle flat board with metal-foil-clad is die-cut into the shape that needs, and forms the ball top, plane of metal-foil-clad;
F., it is the soft ring on plane that one center is provided;
G. the middle flat board with metal-foil-clad is connected with the plane at soft ring center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710125458XA CN101203064B (en) | 2007-12-24 | 2007-12-24 | Composite diaphragm and its making method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710125458XA CN101203064B (en) | 2007-12-24 | 2007-12-24 | Composite diaphragm and its making method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101203064A CN101203064A (en) | 2008-06-18 |
| CN101203064B true CN101203064B (en) | 2012-03-14 |
Family
ID=39517964
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200710125458XA Active CN101203064B (en) | 2007-12-24 | 2007-12-24 | Composite diaphragm and its making method |
Country Status (1)
| Country | Link |
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| CN (1) | CN101203064B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202269005U (en) | 2011-11-03 | 2012-06-06 | 易力声科技(深圳)有限公司 | Loudspeaker diaphragm and loudspeaker using same |
| CN103200500A (en) * | 2012-01-04 | 2013-07-10 | 苏州恒听电子有限公司 | Flapping device used for minitype loudspeaker device |
| CN103152688B (en) * | 2012-12-21 | 2015-09-16 | 东莞泉声电子有限公司 | The manufacture method of horn vibration film |
| CN103079159A (en) * | 2012-12-25 | 2013-05-01 | 苏州恒听电子有限公司 | Shielding casing for moving iron unit and assisted listening equipment using shielding casing |
| CN103067829A (en) * | 2012-12-25 | 2013-04-24 | 苏州恒听电子有限公司 | Vibrating diaphragm applied to medium-high frequency sound production unit and preparation method thereof |
| CN103945318A (en) * | 2014-04-09 | 2014-07-23 | 美特科技(苏州)有限公司 | Method for manufacturing composite vibrating diaphragm |
| DE102014106753B4 (en) * | 2014-05-14 | 2022-08-11 | USound GmbH | MEMS loudspeaker with actuator structure and diaphragm spaced therefrom |
| CN106792377A (en) * | 2017-01-23 | 2017-05-31 | 瑞声科技（南京）有限公司 | Vibrating diaphragm and microphone device |
| CN108093351A (en) * | 2017-11-29 | 2018-05-29 | 瑞声科技(新加坡)有限公司 | Top dome and its manufacturing method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1040901A (en) * | 1988-09-01 | 1990-03-28 | 李万钧 | Loud speaker |
| CN2271227Y (en) * | 1996-11-25 | 1997-12-24 | 黄丈耘 | Diaphragm of loudspeaker |
| CN1455618A (en) * | 2003-05-23 | 2003-11-12 | 百富非凡机电设备（北京）有限公司 | Loudspeaker vibrating diaphragm base material structure and manufacturing method thereof |
| CN101394684A (en) * | 2007-09-17 | 2009-03-25 | 瑞声声学科技(常州)有限公司 | Composite diaphragm and its making method |
-
2007
- 2007-12-24 CN CN200710125458XA patent/CN101203064B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1040901A (en) * | 1988-09-01 | 1990-03-28 | 李万钧 | Loud speaker |
| CN2271227Y (en) * | 1996-11-25 | 1997-12-24 | 黄丈耘 | Diaphragm of loudspeaker |
| CN1455618A (en) * | 2003-05-23 | 2003-11-12 | 百富非凡机电设备（北京）有限公司 | Loudspeaker vibrating diaphragm base material structure and manufacturing method thereof |
| CN101394684A (en) * | 2007-09-17 | 2009-03-25 | 瑞声声学科技(常州)有限公司 | Composite diaphragm and its making method |
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| Publication number | Publication date |
|---|---|
| CN101203064A (en) | 2008-06-18 |
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| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: AAC MICROTECH (CHANGZHOU) Co.,Ltd. Assignor: AAC Acoustic Technologies (Changzhou) Co.,Ltd. Contract record no.: 2011990000442 Denomination of invention: Composite diaphragm and its making method License type: Exclusive License Open date: 20080618 Record date: 20110609 |
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| C14 | Grant of patent or utility model | ||
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| TR01 | Transfer of patent right |
Effective date of registration: 20240109 Address after: No. 3 Changcao Road, Wujin High tech Industrial Development Zone, Changzhou City, Jiangsu Province, 213166 Patentee after: AAC MICROTECH (CHANGZHOU) Co.,Ltd. Address before: 213161 hi tech Industrial Development Zone, Wujin District, Jiangsu, Changzhou Patentee before: AAC Acoustic Technologies (Changzhou) Co.,Ltd. |