CN103517197A - Experimental method for optimization design of cone shape of speaker cone - Google Patents
Experimental method for optimization design of cone shape of speaker cone Download PDFInfo
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- CN103517197A CN103517197A CN201210222179.6A CN201210222179A CN103517197A CN 103517197 A CN103517197 A CN 103517197A CN 201210222179 A CN201210222179 A CN 201210222179A CN 103517197 A CN103517197 A CN 103517197A
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Abstract
The invention provides an experimental method for optimization design of a cone shape of a speaker cone. The experimental method for the optimization design of the cone shape of the speaker cone obtains minimum free energy, a minimum free surface and a stable surface by using surface tension to carry out optimization design on the cone shape of the speaker cone with a determined size, and the performance of the speaker cone is improved.
Description
Technical field
the present invention relates to loud speaker field, particularly a kind of experimental technique of diffuser cone shape optimal design.
Background technology
in modern electroacoustic development in science and technology, as the loud speaker of one of critical elements in electro-acoustic element by people's most study, be also more generally, more deep; And therefrom we also can find that the development of loud speaker says to a certain extent, it is to be closely related with development, the exploitation of vibrating diaphragm, and particularly paper pulp vibrating diaphragm (cone) is particularly general.The impact of the geometry of vibrating diaphragm cone on speaker performance is especially significant on the impact of high frequency characteristics.
therefore, design to diaphragm of loudspeaker cone geometry is taken seriously, design to diaphragm of loudspeaker cone geometry at present, common are: the types such as exponential curve type, hyperbolic-type, linear pattern, parabolic type, circular line style, also there is people, on diaphragm of loudspeaker cone geometry, the impact of loudspeaker high frequency characteristic was done to experimental study, have document to record: " ... infinite many curves between 2 o'clock, can be had, the just part that available mathematical formulae is expressed.To diaphragm of loudspeaker shape, be also the same, also have numerous selections." still; we think that this does not just search out an optimal-design method and causes, and this method of thinking is not consider that its surface area changes; only consider between 2 o'clock, to have infinite many curves and the judgement made, consider to be physically significantly to have weak point.
for this reason, the invention provides a kind of utilize surface tension and gain freedom can be minimum, Free Surface is minimum and the experimental technique of the surface of stability, utilizes this method to be optimized design to determining the diffuser cone shape of size.
Summary of the invention
the object of this invention is to provide a kind of utilize surface tension and gain freedom can be minimum, Free Surface is minimum and the experimental technique of the diffuser cone shape optimal design of the surface of stability.
for achieving the above object, the technical solution used in the present invention is: a kind of experimental technique of diffuser cone shape optimal design, and described method comprises the following steps successively:
1) make framework, described framework comprises take the second annulus that the radius R of big cone opening of described diffuser cone shape is radius as radius the first annulus, the radius r of tiny cone opening of described diffuser cone shape of take, described the first annulus is arranged on directly over described the second annulus, and the distance between described the first annulus and described the second annulus is the height h of described diffuser cone shape;
2) described framework is immersed in experimental liquid;
3) from solution, take out described framework and puncture described the first annulus and described the second annulus on round liquid film, retain the annular surface liquid film between described the first annulus and described the second annulus;
4) geometry of annular surface liquid film described in use camera recordings;
5) according to diffuser cone shape described in the geometry design of the described annular surface liquid film recording in step 4).
preferably, according to the described diffuser cone shape of the relatively correction of the surface tension coefficient of the surface tension coefficient of paper pulp and experimental liquid.
preferably, according to the described diffuser cone shape of the relatively correction of the density of the density of paper pulp and experimental liquid.
preferably, described in the camera recordings in described step 4) annular surface liquid film from starting to be generated to shape and the time of breaking.
further preferably, according to described annular surface liquid film, from starting to be generated to shape and the time of breaking, carry out the comparison of time, shape, stability.
further preferably, according to the described diffuser cone shape of the more described correction of described time, shape, stability.
operation principle of the present invention is: pass through surface tension of liquid, the Free Surface of liquid presents the trend of contraction, finally can obtain a free energy minimization, Free Surface minimum and stable surface, according to tension principle, finding out big cone opening radius is R, tiny cone opening radius is r, is highly the most stable diffuser cone shape of h.
because technique scheme is used, the present invention compared with prior art has following advantages:
1, because the present invention utilizes surface tension of liquid, find out the most stable diffuser cone shape, thereby diffuser cone shape is optimized in improvement, promote the performance of loud speaker, particularly promote the high frequency performance of loud speaker.
2, because the present invention is according to the relatively correction diffuser cone shape of experimental liquid performance and pulp property, can access the better diffuser cone shape of stability.
Accompanying drawing explanation
the schematic diagram of accompanying drawing 1 device of the present invention;
accompanying drawing 2 is diffuser Frequency Response figure before optimizing;
accompanying drawing 3 is diffuser Frequency Response figure after optimizing.
in above accompanying drawing: 1, the first annulus; 2, the second annulus; 3, annular surface liquid film.
Embodiment
below in conjunction with embodiment shown in the drawings, the invention will be further described:
embodiment mono-: as shown in Figure 1, the radius of design big cone opening is that the radius of R, tiny cone opening is the experimental technique of r, the high diffuser cone shape for h, and described method comprises the following steps successively:
1) make framework, described framework comprises take the second annulus 2 that the radius R of big cone opening of described diffuser cone shape is radius as radius the first annulus 1, the radius r of tiny cone opening of described diffuser cone shape of take, it is the height h of described diffuser cone shape that the first annulus 1 is arranged on the distance between 2, the first annulus 1 and the second annulus 2 directly over the second annulus;
2) described framework is immersed in experimental liquid;
3) from solution, take out described framework and puncture the first annulus 1 and the second annulus 2 on round liquid film, retain the annular surface liquid film 3 between the first annulus 1 and the second annulus 2;
4) use the geometry of camera recordings annular surface liquid film 3;
5) according to diffuser cone shape described in the geometry design of the annular surface liquid film 3 recording in step 4).
embodiment bis-: a kind of diffuser of two sections of conical surfaces, and the h of diffuser cone is larger, adopts two most advanced and sophisticated connected conical surfaces of cone to be bonded, and Fig. 2 is the Frequency Response figure of the loud speaker of described two sections of conical surfaces; In experiment, when the height h of diffuser cone is larger, there will be equally in the middle of large and small prostomum radius and have the shape that is similar to two conical surfaces in h direction.
successively by the loud speaker of two sections of conical surfaces described in following steps optimal design:
1) make framework, described framework comprises take the second annulus that the radius R of big cone opening of diffuser cone shape of described two sections of conical surfaces is radius as radius the first annulus, the radius r of tiny cone opening of diffuser cone shape of described two sections of conical surfaces of take, described the first annulus is arranged on directly over described the second annulus, and the distance between described the first annulus and described the second annulus is the height h of the diffuser cone shape of described two sections of conical surfaces;
2) described framework is immersed in experimental liquid;
3) from solution, take out described framework and puncture described the first annulus and described the second annulus on round liquid film, retain two sections of conical surface liquid films between described the first annulus and described the second annulus;
4) with two sections of conical surface liquid films described in camera recordings from starting to be generated to shape and the time of breaking;
5) according to the geometry of the described two sections of conical surface liquid films that record in step 4), redesign the diffuser shape of described two sections of conical surfaces.
test the diffuser of two sections of new conical surfaces that this optimum experimental designs and produces, obtain the Frequency Response figure shown in Fig. 3, Fig. 2 and Fig. 3 contrast can be found out, diffuser Frequency Response curve fluctuation after optimum experimental is significantly less than the Frequency Response curve before optimization, and the performance of the diffuser after optimizing when high frequency significantly improves.
above-described embodiment is only explanation technical conceive of the present invention and feature, and its object is to allow person skilled in the art can understand content of the present invention and implement according to this, can not limit the scope of the invention with this.All equivalences that Spirit Essence is done according to the present invention change or modify, within all should being encompassed in protection scope of the present invention.
Claims (6)
1. an experimental technique for diffuser cone shape optimal design, is characterized in that: described method comprises the following steps successively:
1) make framework, described framework comprises the second annulus that the radius r of the tiny cone opening of take the first annulus that the radius R of big cone opening of described diffuser cone shape is radius, take described diffuser cone shape is radius, described the first annulus is arranged on directly over described the second annulus, and the distance between described the first annulus and described the second annulus is the height h of described diffuser cone shape;
2) described framework is immersed in experimental liquid;
3) from solution, take out described framework and puncture described the first annulus and described the second annulus on round liquid film, retain the annular surface liquid film between described the first annulus and described the second annulus;
4) geometry of annular surface liquid film described in use camera recordings;
5) according to diffuser cone shape described in the geometry design of the described annular surface liquid film recording in step 4).
2. the experimental technique of a kind of diffuser cone shape optimal design according to claim 1, is characterized in that: according to the described diffuser cone shape of the relatively correction of the surface tension coefficient of the surface tension coefficient of paper pulp and experimental liquid.
3. the experimental technique of a kind of diffuser cone shape optimal design according to claim 1, is characterized in that: according to the described diffuser cone shape of the relatively correction of the density of the density of paper pulp and experimental liquid.
4. the experimental technique of a kind of diffuser cone shape optimal design according to claim 1, is characterized in that: described in the camera recordings in described step 4), annular surface liquid film is from starting to be generated to shape and the time of breaking.
5. according to the experimental technique of a kind of diffuser cone shape optimal design described in claim 1 or 4, it is characterized in that: according to described annular surface liquid film, from starting to be generated to shape and the time of breaking, carry out the comparison of time, shape, stability.
6. the experimental technique of a kind of diffuser cone shape optimal design according to claim 5, is characterized in that: according to the described diffuser cone shape of the more described correction of described time, shape, stability.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210222179.6A CN103517197B (en) | 2012-06-29 | 2012-06-29 | A kind of experimental technique of optimization design of cone shape of speaker cone |
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| CN201210222179.6A CN103517197B (en) | 2012-06-29 | 2012-06-29 | A kind of experimental technique of optimization design of cone shape of speaker cone |
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| CN103517197A true CN103517197A (en) | 2014-01-15 |
| CN103517197B CN103517197B (en) | 2016-08-24 |
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| CN201210222179.6A Active CN103517197B (en) | 2012-06-29 | 2012-06-29 | A kind of experimental technique of optimization design of cone shape of speaker cone |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1592497A (en) * | 2003-09-05 | 2005-03-09 | Dlc设计公司 | Method for mfg. loadspeaker diaphragm |
| JP2008311707A (en) * | 2007-06-12 | 2008-12-25 | Foster Electric Co Ltd | Manufacturing method and manufacturing device of diaphragm for electroacoustic transducer |
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2012
- 2012-06-29 CN CN201210222179.6A patent/CN103517197B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1592497A (en) * | 2003-09-05 | 2005-03-09 | Dlc设计公司 | Method for mfg. loadspeaker diaphragm |
| JP2008311707A (en) * | 2007-06-12 | 2008-12-25 | Foster Electric Co Ltd | Manufacturing method and manufacturing device of diaphragm for electroacoustic transducer |
Non-Patent Citations (1)
| Title |
|---|
| 薛英越: ""音盆曲面设计的关键技术研究"", 《中国优秀硕士学位论文全文数据库 信息科技辑》 * |
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| CN103517197B (en) | 2016-08-24 |
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Application publication date: 20140115 Assignee: MERRY ELECTRONICS CO.,LTD. Assignor: MERRY ELECTRONICS (SUZHOU) Co.,Ltd. Contract record no.: 2019990000071 Denomination of invention: Experimental method for optimization design of cone shape of speaker cone Granted publication date: 20160824 License type: Common License Record date: 20190314 |
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Effective date of registration: 20230406 Address after: 516000 Jinshan Industrial Park, Qingxi, Longmen County, Huizhou City, Guangdong Province Patentee after: Merry Electronics (Huizhou) Co.,Ltd. Address before: Xiangcheng Kang Yuan Economic Development Zone in Suzhou City, Jiangsu Province, No. 800 215131 Patentee before: MERRY ELECTRONICS (SUZHOU) Co.,Ltd. |
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