CN103209372A - Collapse-free sound film - Google Patents
Collapse-free sound film Download PDFInfo
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- CN103209372A CN103209372A CN201210013821XA CN201210013821A CN103209372A CN 103209372 A CN103209372 A CN 103209372A CN 201210013821X A CN201210013821X A CN 201210013821XA CN 201210013821 A CN201210013821 A CN 201210013821A CN 103209372 A CN103209372 A CN 103209372A
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- decorative pattern
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Abstract
The invention belongs to the field of electric sound films and discloses a collapse-free sound film. An edge arc is arranged around the sound film and provided with a decorative pattern, and the section of the edge arc is a section of arc or formed by connection of a plurality of sections of arcs, and positions where arcs are connected are in fillet smooth connection. The section of the decorative pattern is U-shaped, the width of the decorative pattern is twice of the depth of the decorative pattern, the trend of the decorative pattern is basically the same with that of the edge arc, and a radian pattern is formed if the R value is large. The sound film is made of a polyester film, computer-based 3D drawing is adopted, the edge arc and the decorative pattern are designed reasonably according to electro-acoustic parameter requirements of clients, the design of an edge and a copper ring is adopted if the thickness of the raw material of polyester film is below 16 microns, reasonable molding techniques are adopted for different materials and thicknesses, the blow molding technique is adopted for the edge and the copper ring, and the clients use collapse-free vibrating films (sound films) to assemble micro speakers, so that poor acoustic characteristic variation caused by operations, carrying and reliability experiments can be reduced greatly, the production effectiveness can be improved, costs can be reduced, the quality can be guaranteed, and the product reliability can be improved.
Description
Technical field
The present invention relates to the electroacoustic field, relate in particular to a kind of sound film that do not subside.
Background technology
The vibrating membrane (sound film) that uses on the present Microspeaker causes decorative pattern (reinforcement) and base shape all to be easy to subside owing to external force such as operator or carryings when making loud speaker and self can not reply.Do failtests collapse phenomenon also takes place, acoustic characteristic changes, and mainly showing as the pure tone detection has noise, and frequency response curve test has trough, and it is big etc. bad that distortion becomes.Cause a large amount of defective productss.
Summary of the invention
In order to solve the problems of the technologies described above, the object of the present invention is to provide a kind of Microspeaker sound film decorative pattern and base shape not to subside, can the oneself be returned to original shape, guarantee the sound film that do not subside that original acoustic characteristic does not make a variation.
Complete skill scheme of the present invention is, a kind of sound film that do not subside is provided with the limit arc around the described sound film, and described limit arc is provided with decorative pattern, and the cross section of described limit arc comprises at least one section arc, and to be that fillet is smooth with the junction of arc be connected described arc.
The cross section of described decorative pattern is U-shaped, and the width of described decorative pattern is 2 times of the degree of depth.
Described sound film adopts polyester film to make.
When the thickness of polyester film during less than 16 microns, also be provided with a copper ring on the edge of sound film.
The described sound film that adds copper ring adopts air-pressure forming.
Therefore the present invention has compared following beneficial effect with present technology:
Arc cross section, limit of the present invention is provided with few segmental arc, segmental arc connects sawtooth design, also be provided with decorative pattern above, decorative pattern is the same substantially with the tendency of segmental arc, and decorative pattern quantity is many, thin, shallow, and the limit arc and the decorative pattern that make do not subside, but self-recovery under the external force effect, the client uses vibrating membrane (sound film) the assembling Microspeaker that do not subside, and can reduce operation greatly. and carrying and reliable experiment cause the bad of acoustic characteristic variation, improve productivity effect and reduce cost to ensure the quality of products and improve product reliability.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, does not constitute to improper restriction of the present invention, in the accompanying drawings:
Fig. 1 is limit of the present invention arc structural representation;
Fig. 2 is the present invention and the schematic diagram of technology pattern structure contrast now.
Embodiment
Describe the present invention in detail below in conjunction with accompanying drawing and specific embodiment, be used for explaining the present invention in this illustrative examples of the present invention and explanation, but not as a limitation of the invention.
Embodiment 1:
A kind of sound film that do not subside of present embodiment as shown in Figure 1, 2, is provided with limit arc 1 around the sound film, and limit arc 1 is provided with decorative pattern 2, and the cross section of limit arc 1 is that one section arc or multistage arc are connected and form, and to be that fillet is smooth with the junction of arc be connected 3 to arc; The cross section of decorative pattern 2 is U-shaped 4, and the width of decorative pattern 2 is 2 times of the degree of depth, and decorative pattern 2 tendencies are the same substantially with the limit arc, and the R value is bigger, i.e. the radian flower; The sound film adopts polyester film to make, use computer 3D to draw, according to the requirement of client's electro mechanical parameter, appropriate design limit arc and decorative pattern, add copper ring design at 16 microns with next employing edge at raw material polyester film thickness, adopt rational moulding process at unlike material and thickness, what the edge added copper ring will adopt air-pressure forming.
Therefore, arc cross section, limit of the present invention is provided with few segmental arc, segmental arc connects sawtooth design, also be provided with decorative pattern above, decorative pattern is the same substantially with the tendency of segmental arc, decorative pattern quantity is many, thin, shallow, the limit arc and the decorative pattern that make do not subside, but self-recovery under the external force effect, the client uses vibrating membrane (sound film) the assembling Microspeaker that do not subside, can reduce operation greatly. carry and reliably test and cause the bad of acoustic characteristic variation, the raising productivity effect reduces cost to ensure the quality of products and improves product reliability.
More than technical scheme that the embodiment of the invention is provided be described in detail, used specific case herein principle and the execution mode of the embodiment of the invention are set forth, the explanation of above embodiment only is applicable to the principle that helps to understand the embodiment of the invention; Simultaneously, for one of ordinary skill in the art, according to the embodiment of the invention, the part that on embodiment and range of application, all can change, in sum, this description should not be construed as limitation of the present invention.
Claims (5)
1. the sound film that do not subside is characterized in that, is provided with the limit arc around the described sound film, and described limit arc is provided with decorative pattern, and the cross section of described limit arc comprises at least one section arc, and to be that fillet is smooth with the junction of arc be connected described arc.
2. a kind of sound film that do not subside according to claim 1 is characterized in that the cross section of described decorative pattern is U-shaped, and the width of described decorative pattern is 2 times of the degree of depth.
3. a kind of sound film that do not subside according to claim 1 and 2 is characterized in that, described sound film adopts polyester film to make.
4. a kind of sound film that do not subside according to claim 3 is characterized in that, when the thickness of polyester film during less than 16 microns, also is provided with a copper ring on the edge of sound film.
5. a kind of sound film that do not subside according to claim 4 is characterized in that, the described sound film that adds copper ring adopts air-pressure forming.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210013821XA CN103209372A (en) | 2012-01-17 | 2012-01-17 | Collapse-free sound film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210013821XA CN103209372A (en) | 2012-01-17 | 2012-01-17 | Collapse-free sound film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103209372A true CN103209372A (en) | 2013-07-17 |
Family
ID=48756431
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210013821XA Pending CN103209372A (en) | 2012-01-17 | 2012-01-17 | Collapse-free sound film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103209372A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015032085A1 (en) * | 2013-09-09 | 2015-03-12 | 东莞泉声电子有限公司 | Acoustic metal diaphragm |
| WO2015176357A1 (en) * | 2014-05-20 | 2015-11-26 | 朱建荣 | Speaker structure |
| WO2018010138A1 (en) * | 2016-07-14 | 2018-01-18 | 易力声科技(深圳)有限公司 | Arc line loudspeaker diaphragm |
| CN107854136A (en) * | 2017-11-24 | 2018-03-30 | 江门大诚医疗器械有限公司 | One kind is applied to stethoscopic metal vibration diaphragm structure |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101304622A (en) * | 2007-05-09 | 2008-11-12 | 富准精密工业(深圳)有限公司 | Audio film structure of electroacoustic apparatus and preparation method thereof |
| CN101316458A (en) * | 2007-05-29 | 2008-12-03 | 上海先锋电声器材有限公司 | Vibrating body for audio converter and loudspeaker device |
-
2012
- 2012-01-17 CN CN201210013821XA patent/CN103209372A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101304622A (en) * | 2007-05-09 | 2008-11-12 | 富准精密工业(深圳)有限公司 | Audio film structure of electroacoustic apparatus and preparation method thereof |
| CN101316458A (en) * | 2007-05-29 | 2008-12-03 | 上海先锋电声器材有限公司 | Vibrating body for audio converter and loudspeaker device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015032085A1 (en) * | 2013-09-09 | 2015-03-12 | 东莞泉声电子有限公司 | Acoustic metal diaphragm |
| WO2015176357A1 (en) * | 2014-05-20 | 2015-11-26 | 朱建荣 | Speaker structure |
| WO2018010138A1 (en) * | 2016-07-14 | 2018-01-18 | 易力声科技(深圳)有限公司 | Arc line loudspeaker diaphragm |
| CN107854136A (en) * | 2017-11-24 | 2018-03-30 | 江门大诚医疗器械有限公司 | One kind is applied to stethoscopic metal vibration diaphragm structure |
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Application publication date: 20130717 |