CN201204688Y - Compound diaphragm - Google Patents
Compound diaphragm Download PDFInfo
- Publication number
- CN201204688Y CN201204688Y CNU2008200924334U CN200820092433U CN201204688Y CN 201204688 Y CN201204688 Y CN 201204688Y CN U2008200924334 U CNU2008200924334 U CN U2008200924334U CN 200820092433 U CN200820092433 U CN 200820092433U CN 201204688 Y CN201204688 Y CN 201204688Y
- Authority
- CN
- China
- Prior art keywords
- composite diaphragm
- hot pressing
- counterdie
- diaphragm
- model
- 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.)
- Expired - Lifetime
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- Diaphragms For Electromechanical Transducers (AREA)
Abstract
The utility model discloses a composite diaphragm, comprising a bottom film and a stacking film pressed on the bottom file by hot pressing mode; the material of the stacking film is polyether imide. The composite diaphragm with the structure can effectively improve distortion and listening sense, and has low cost, high strength and simple production process.
Description
[technical field]
The utility model relates to a kind of microphone device, particularly the composite diaphragm of mini-sound device.
[background technology]
Along with improving constantly of the market demand, mobile phone develops to the slimming direction gradually, and requires 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.
Vibrating diaphragm in correlation technique is to form by single cloth film or the compacting of other hot pressing moulding materials.Yet the vibrating diaphragm of this structure when high frequency, because rigidity is not enough, is easy to generate and cuts apart vibration, influences distortion and sense of hearing.In addition, in actual applications, when not influencing tonequality, for improving the intensity of vibrating diaphragm, Chang Yong way is for increasing the thickness in some areas on the vibrating diaphragm, in the industry, the vibrating diaphragm that homogenous material is made, vibrating diaphragm thickness everywhere is identical after being pressed into, and can not satisfy above-mentioned requirements.
In order to address the above problem, active development composite diaphragm in the industry, a kind of composite diaphragm of correlation technique, it is made by the bonding different materials of glue.Yet, the composite diaphragm production process complexity of this structure, its shape is also fairly simple.And, to constantly utilize glue bonding during making, improved the cost of manufacture of composite diaphragm.
Therefore, be necessary to provide a kind of new composite diaphragm to overcome above-mentioned shortcoming.
[utility model content]
The purpose of this utility model is to provide a kind of improves distortion and sense of hearing, cost is low, intensity is high and the simple composite diaphragm of production process.
The purpose of this utility model is achieved in that
A kind of composite diaphragm, it comprises counterdie, and described counterdie can be cloth or hot pressing material, and wherein, described composite diaphragm comprises also and utilizes hot pressing mode to be pressed in stack film on the counterdie that described stack film is the hot pressing material, as Polyetherimide.
Compare with the vibrating diaphragm of correlation technique, the utlity model has following advantage: one, improved distortion and sense of hearing; Two, its operation is simple and reduce cost, and the mode straight forming by hot pressing need not glue together in the later stage; Three, the composite diaphragm that adopts hot-press method to make can be pressed into arbitrary shape.Four, by counterdie and the composite diaphragm made of stack film, can increase the thickness in some areas on the composite diaphragm on demand, play the effect of strengthening vibrating diaphragm intensity.
[description of drawings]
Fig. 1 is the schematic diagram of the utility model composite diaphragm.
[embodiment]
Below in conjunction with accompanying drawing, the utility model composite diaphragm is elaborated.
Please join shown in Figure 1ly, the utility model composite diaphragm 1 can be used for mini-sound device (not shown).
The above only is a better embodiment of the present utility model; protection range of the present utility model does not exceed with above-mentioned execution mode; as long as the equivalence that those of ordinary skills do according to the utility model institute disclosure is modified or changed, all should include in the protection range of putting down in writing in claims.
Claims (2)
1. composite diaphragm, it comprises counterdie, described counterdie can be cloth or hot pressing material, it is characterized in that: described composite diaphragm comprises also and utilizes hot pressing mode to be pressed in stack film on the counterdie that described stack film is the hot pressing material, as Polyetherimide.
2. composite diaphragm according to claim 1 is characterized in that: the cloth of described counterdie is that black is scraped adhesive plaster.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200924334U CN201204688Y (en) | 2008-02-29 | 2008-02-29 | Compound diaphragm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200924334U CN201204688Y (en) | 2008-02-29 | 2008-02-29 | Compound diaphragm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201204688Y true CN201204688Y (en) | 2009-03-04 |
Family
ID=40427001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200924334U Expired - Lifetime CN201204688Y (en) | 2008-02-29 | 2008-02-29 | Compound diaphragm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201204688Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102640520A (en) * | 2009-11-30 | 2012-08-15 | 易音特电子株式会社 | Diaphragm for sound converter |
| CN109288164A (en) * | 2017-07-25 | 2019-02-01 | 曹荣华 | A kind of ventilative respirator transmitting sound |
| CN109467930A (en) * | 2018-11-28 | 2019-03-15 | 惠州市威隆展业实业有限公司 | A kind of earphone diaphragm material and preparation method thereof |
-
2008
- 2008-02-29 CN CNU2008200924334U patent/CN201204688Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102640520A (en) * | 2009-11-30 | 2012-08-15 | 易音特电子株式会社 | Diaphragm for sound converter |
| CN102640520B (en) * | 2009-11-30 | 2014-12-03 | 易音特电子株式会社 | Diaphragm for sound converter |
| CN109288164A (en) * | 2017-07-25 | 2019-02-01 | 曹荣华 | A kind of ventilative respirator transmitting sound |
| CN109467930A (en) * | 2018-11-28 | 2019-03-15 | 惠州市威隆展业实业有限公司 | A kind of earphone diaphragm material and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090304 |
|
| CX01 | Expiry of patent term |