CN106535080A - Cone paper and voice coil framework integrated forming process and forming die set - Google Patents
Cone paper and voice coil framework integrated forming process and forming die set Download PDFInfo
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- CN106535080A CN106535080A CN201611065659.0A CN201611065659A CN106535080A CN 106535080 A CN106535080 A CN 106535080A CN 201611065659 A CN201611065659 A CN 201611065659A CN 106535080 A CN106535080 A CN 106535080A
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- mould
- coil framework
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- speech coil
- pot
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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
- H04R31/00—Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor
- H04R31/003—Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor for diaphragms or their outer suspension
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2231/00—Details of apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor covered by H04R31/00, not provided for in its subgroups
- H04R2231/001—Moulding aspects of diaphragm or surround
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Making Paper Articles (AREA)
Abstract
The invention relates to the technical field of horn making process, especially to a cone paper and voice coil framework integrated forming process and a forming die set. The process includes the steps of placing base material on a lower die A of a composite die set, a driving mechanism A driving an upper die to press down towards the direction of the lower die A, hot-press molding the base material, forming the body of the cone paper and the voice coil frame to obtain a semi-finished product, moving the semi-finished product obtained from the previous step to a processing die set and placing the semi-finished product on a lower die B, a driving mechanism B driving an upper die B to press down towards the direction of the lower die B, hot-press molding the semi-finished product to form the side of the cone paper and obtaining the finished product. Concentricity of the cone paper and the voice coil framework is ensured, and the cone paper and the voice coil framework may not fall off. The produced horn is better in timbre and longer in service lifetime.
Description
Technical field
The present invention relates to loudspeaker Manufacturing Techniques field, more particularly to a kind of bulging paper and speech coil framework integral forming process
With shaping module.
Background technology
Play ripple（Damper）It is one of most important element in loudspeaker or loadspeaker structure, elastic telescopic degree and toughness are special
Property preferably play ripple, in addition to loudspeaker and loudspeaker preferably power output and acoustic characteristic can be provided, and loudspeaker and raise one's voice
The basis of device producer quality control when loudspeaker and loudspeaker is manufactured, additionally it is possible to effectively extend the use longevity of loudspeaker and loudspeaker
Life.
The manufacture craft of conventional horn is will to play ripple, speech coil framework, drum paper by glue to be bonded together, but of long duration
Afterwards, easily come off, cause loudspeaker normally cannot use；In addition, man-made assembly is susceptible to skew, ripple, speech coil framework, drum are played
Paper, voice coil loudspeaker voice coil are not that concentric is arranged, and affect the tonequality of loudspeaker.
The content of the invention
Present invention aims to the deficiencies in the prior art provide a kind of bulging paper and speech coil framework integral forming process
With shaping module, drum paper and speech coil framework can be designed to be integrally formed by the present invention, in guarantee drum paper, speech coil framework concentric
While setting, drum paper and speech coil framework will not fall off so that made by tone quality of horn more preferably, service life it is more long.
The present invention is achieved through the following technical solutions, a kind of for rousing paper and speech coil framework integral forming process
Shaping module, it is characterised in that：Including for rousing, the pot of paper and speech coil framework are integrally formed to combine module, the combination die
Group includes mould A, lower mould A and drives upper mould A drive mechanisms A that mould A directions push down, the lower mould A to include boss A, institute
The excircle for stating boss A is provided with pot shaping concave surface A, and pot shaping concave surface A is arranged with boss A concentrics, it is described on
Mould A includes hollow circuit cylinder A, and the excircle of the hollow circuit cylinder A is provided with pot shaping convex surface A, the pot shaping convex surface A with
Hollow circuit cylinder A concentrics are arranged, and the shaping module also includes the processing module that side is hanged for making bulging paper, the processing module bag
Include mould B, lower mould B and drive upper mould B drive mechanisms B that mould B directions push down, the lower mould B to include for placing bulging paper
The concave surface B of pot, is provided with outstanding edge forming convex surface at the excircle of the concave surface B, the outstanding edge forming convex surface is with concave surface B with circle
The heart is arranged；The upper mould B includes the convex surface B matched with concave surface B, and the excircle of the convex surface B is provided with outstanding edge forming concave surface,
The outstanding edge forming concave surface is arranged with convex surface B concentrics.
Preferably, the circle centre position of the concave surface B is provided with the boss B for being sheathed on inside speech coil framework, it is described convex
Platform B is arranged with concave surface B concentrics.
Preferably, the circle centre position of the convex surface B is provided with the hollow circuit cylinder B being sheathed on outside speech coil framework, it is described in
Hollow round column B is arranged concentrically with convex surface B.
Preferably, the lower end of the boss A is provided with elastic parts.
A kind of bulging paper and speech coil framework integral forming process, comprise the following steps：Step one：Base material is positioned over into combination die
On the lower mould A of group；Step 2：In the driving of drive mechanism A, mould A directions push mould A down, hot-forming to base material, form drum paper
Pot and speech coil framework, obtain semi-finished product, wherein, drum paper pot 170 DEG C ~ 200 DEG C of hot pressing temperature, the time be 7s ~ 10s；
210 DEG C ~ 240 DEG C of the hot pressing temperature of speech coil framework, time are 7s ~ 10s；Step 3：Above-mentioned steps are obtained semi-finished product again to move to
Processing module, semi-finished product are placed on lower mould B；Step 4：In the driving of drive mechanism B, mould B directions push mould B down, half-and-half
Finished product is hot-forming, forms the outstanding side of drum paper, obtains finished product, 180 DEG C ~ 210 DEG C of the hot pressing temperature on the outstanding side of drum paper, the time be 7s ~
10s。
Preferably, also including step 5：The wound around coil on speech coil framework, makes voice coil loudspeaker voice coil.
Preferably, the step 2 specifically includes following step：A. go up mould A and push base material, the boss A of lower mould A
Stretch in the hollow circuit cylinder A of mould A so that raise up in the middle part of base material, form speech coil framework；B. go up the pot shaping of mould A
The base material of speech coil framework outer circumference is pressed downward by convex surface A, is coordinated with the pot shaping concave surface A of lower mould A, is formed the pot of drum paper
Body.
Preferably, 180 DEG C of the hot pressing temperature of the pot of the bulging paper, the time is 8.5s；The hot pressing temperature of speech coil framework
225, the time is 8.5s.
Preferably, the step 4 specifically includes following step：A. semi-finished product are placed on lower mould B, semi-finished product
The outer surface of pot fit with the inner surface of the concave surface B of lower mould B, the speech coil framework of semi-finished product is sheathed on the boss B's of lower mould B
It is outside；B. go up mould B to push, the outer surface of the convex surface B of upper mould B is fitted with the inner surface of the pot of semi-finished product, hang edge forming convex surface
Coordinate with outstanding edge forming concave surface, the outer circumference hot pressing to the pot of semi-finished product, form the outstanding side of drum paper.
Preferably, 190 DEG C of the hot pressing temperature on the outstanding side of the bulging paper, the time is 8.5s.
Beneficial effects of the present invention：First base material is positioned on the lower mould A of combination module；Then drive mechanism A drives
Mould A directions push upper mould A down, hot-forming to base material, form the pot and speech coil framework of drum paper, obtain semi-finished product, wherein, drum
170 DEG C ~ 200 DEG C of the hot pressing temperature of the pot of paper, time are 7s ~ 10s；210 DEG C ~ 240 DEG C of the hot pressing temperature of speech coil framework, time
For 7s ~ 10s；Above-mentioned steps are obtained into semi-finished product again and moves to processing module, semi-finished product are placed on lower mould B；Drive mechanism B again
In driving, mould B directions push mould B down, hot-forming to semi-finished product, form the outstanding side of drum paper, obtain finished product, the outstanding side of drum paper
180 DEG C ~ 210 DEG C of hot pressing temperature, time are 7s ~ 10s, it is ensured that while drum paper, speech coil framework concentric are arranged, rouse paper and voice coil loudspeaker voice coil
Skeleton will not fall off so that made by tone quality of horn more preferably, service life it is more long.
Description of the drawings
Fig. 1 is the dimensional structure diagram of present invention combination module.
Fig. 2 is the top view of mould A under present invention combination module.
Fig. 3 is the top view of mould A on present invention combination module.
Fig. 4 is the dimensional structure diagram of present invention processing module.
Fig. 5 is the top view of mould B under present invention processing module.
Fig. 6 is the top view of mould B on present invention processing module.
Fig. 7 is the structural representation of present invention drum paper and speech coil framework.
Specific embodiment
1 to Fig. 7, and specific embodiment below in conjunction with the accompanying drawings is described further to the present invention.
As shown in Figures 1 to 6, a kind of shaping module for rousing paper and speech coil framework integral forming process, including for
The pot 11 of drum paper is integrally formed with speech coil framework 12 to combine module, the combination module include mould A21, lower mould A22 and
Mould A21 drive mechanisms A that mould A22 directions push down in driving, the lower mould A22 include boss A221, the boss A221
Excircle be provided with pot shaping concave surface A222, pot shaping concave surface A222 is arranged with boss A221 concentrics, described
Upper mould A21 includes hollow circuit cylinder A211, and the excircle of the hollow circuit cylinder A211 is provided with pot shaping convex surface A212, the pot
Body formed convex surface A212 is arranged with hollow circuit cylinder A211 concentrics, and the shaping module is also included for making adding for the outstanding side 13 of bulging paper
Work module, the processing module include mould B31, lower mould B32 and drive the upper mould B31 driving machines that mould B32 directions push down
Structure B, the lower mould B32 include for placing the concave surface B321 of bulging paper pot, are provided with outstanding at the excircle of the concave surface B321
Edge forming convex surface 322, the outstanding edge forming convex surface 322 are arranged with concave surface B321 concentrics；The upper mould B31 includes and concave surface
The convex surface B311 of B321 matchings, the excircle of the convex surface B311 are provided with outstanding edge forming concave surface 312, and the outstanding edge forming is recessed
Face 312 is arranged with convex surface B311 concentrics.
The present embodiment is positioned over base material on the lower mould A22 of combination module first, and in the driving of drive mechanism A, mould A21 is down
Mould A22 directions push, and upper mould A21 is provided with the heater A for hot pressing, and the boss A221 of lower mould A22 is stretched in mould A21
In hollow round column A211 so that raise up in the middle part of base material, speech coil framework 12, the pot shaping convex surface A211 of upper mould A21 are formed
The base material of 12 outer circumference of speech coil framework is pressed downward, is coordinated with the pot shaping concave surface A221 of lower mould A22, is formed drum paper
Pot 11；Above-mentioned steps are obtained into semi-finished product again and moves to processing module, semi-finished product are placed on lower mould B32, drive mechanism B is driven
Dynamic upper mould B31 is pushed in mould B32 directions down, and upper mould B31 is provided with the heater B for hot pressing, is hanged edge forming convex surface 322 and is hanged
Recessed 312 face of edge forming coordinates, the outer circumference hot pressing to the pot 11 of semi-finished product, forms the outstanding side 13 of drum paper, will drum paper and
Speech coil framework 12 is designed to be integrally formed, and while ensureing that drum paper, 12 concentric of speech coil framework are arranged, rouses paper and speech coil framework
12 will not fall off so that made by tone quality of horn more preferably, service life it is more long.
In the present embodiment, the circle centre position of the concave surface B321 is provided with the boss for being sheathed on inside speech coil framework 12
B323, the boss B323 are arranged with concave surface B321 concentrics, and semi-finished product are placed on lower mould B32, the pot 11 of semi-finished product
Outer surface is fitted with the inner surface of the concave surface B321 of lower mould B32, and the speech coil framework 12 of semi-finished product is sheathed on the boss of lower mould B32
The outside of B323.
In the present embodiment, the circle centre position of the convex surface B311 is provided with the hollow circuit cylinder being sheathed on outside speech coil framework 12
B313, the hollow circuit cylinder B313 and convex surface B311 are arranged concentrically, and the outer surface of convex surface B311 is interior with the pot 11 of semi-finished product
Fit on surface so that outstanding edge forming convex surface 322 can 312 face recessed with outstanding edge forming coordinate, to the cylindrical of the pot 11 of semi-finished product
Circumferential portion hot pressing, forms the outstanding side 13 of drum paper, and the speech coil framework 12 of semi-finished product is sheathed on the inside of hollow circuit cylinder B313.
In the present embodiment, the lower end of the boss A221 is provided with elastic parts, in upper mould A21 and lower mould A22 to base material
During hot-forming, the boss A221 of lower mould A22 is stretched in the hollow circuit cylinder A211 of mould A21 so that the middle part of base material to
Upper projection, forms speech coil framework 12, and the elastic parts of boss A221 lower ends forms a buffering, prevents boss A221 to base material
Pressure is excessive, prevents base material lug boss from tearing with material main body, causes substrate damage.
A kind of bulging paper and speech coil framework integral forming process, comprise the following steps：Step one：Base material is positioned over into combination die
On the lower mould A22 of group；Step 2：In the driving of drive mechanism A, mould A22 directions push mould A21 down, shape hot-forming to base material
Into the pot 11 and speech coil framework 12 of drum paper, semi-finished product are obtained, wherein, 170 DEG C ~ 200 DEG C of the hot pressing temperature of the pot 11 of drum paper, when
Between be 7s ~ 10s；210 DEG C ~ 240 DEG C of the hot pressing temperature of speech coil framework 12, time are 7s ~ 10s；Step 3：Again above-mentioned steps are obtained
Processing module is moved to semi-finished product, semi-finished product are placed on lower mould B32；Step 4：In the driving of drive mechanism B, mould B31 is down
Mould B32 directions push, hot-forming to semi-finished product, form the outstanding side 13 of drum paper, obtain finished product, the hot pressing temperature on the outstanding side 13 of drum paper
180 DEG C ~ 210 DEG C, the time is 7s ~ 10s.
Wound around coil on speech coil framework 12 is additionally included in, voice coil loudspeaker voice coil is made.
It is specific that first base material is positioned on the lower mould A22 of combination module, mould A21 moulds down in the driving of drive mechanism A
A22 directions push, and the boss A221 of lower mould A22 is stretched in the hollow circuit cylinder A211 of mould A21 so that the middle part of base material is convex
Rise, form speech coil framework 12, the pot shaping convex surface A211 of upper mould A21 will be the base material of 12 outer circumference of speech coil framework downward
Pressure, is coordinated with the pot shaping concave surface A221 of lower mould A22, forms the pot 11 of drum paper；Above-mentioned steps are obtained into semi-finished product shifting again
To processing module, semi-finished product are placed on lower mould B32, mould B32 directions push mould B31 down in the driving of drive mechanism B, hang side
Shaping convex surface 322 312 face recessed with outstanding edge forming coordinates, the outer circumference hot pressing to the pot 11 of semi-finished product, forms drum paper
Outstanding side 13, drum paper and speech coil framework 12 are designed to be integrally formed, and are ensureing that it is same that drum paper, 12 concentric of speech coil framework are arranged
When, drum paper and speech coil framework 12 will not fall off so that made by tone quality of horn more preferably, service life it is more long.
Draw through test of many times, 180 DEG C of the hot pressing temperature of the pot 11 of the bulging paper, the time is 8.5s；Speech coil framework
12 hot pressing temperature 225, the time is 8.5s；190 DEG C of the hot pressing temperature on the outstanding side 13 of the bulging paper, the time is 8.5s.
Above content is only presently preferred embodiments of the present invention, for one of ordinary skill in the art, according to the present invention's
Thought, will change in specific embodiments and applications, and this specification content is should not be construed as to the present invention
Restriction.
Claims (10)
1. a kind of shaping module for rousing paper and speech coil framework integral forming process, it is characterised in that：Including for rousing paper
Pot（11）With speech coil framework（12）Integrally formed combination module, the combination module include mould A（21）, lower mould A（22）
Mould A upper with driving（21）Mould A down（22）Drive mechanism A that direction pushes, the lower mould A（22）Including boss A（221）, institute
State boss A（221）Excircle be provided with pot shaping concave surface A（222）, the pot shaping concave surface A（222）With boss A
（221）Concentric is arranged, the upper mould A（21）Including hollow circuit cylinder A（211）, the hollow circuit cylinder A（211）Excircle set
It is equipped with pot shaping convex surface A（212）, the pot shaping convex surface A（212）With hollow circuit cylinder A（211）Concentric arrange, this into
Pattern group is also included for making the outstanding side of bulging paper（13）Processing module, the processing module includes mould B（31）, lower mould B
（32）Mould B upper with driving（31）Mould B down（32）Drive mechanism B that direction pushes, the lower mould B（32）Including for placing drum
The concave surface B of paper pot（321）, the concave surface B（321）Excircle at be provided with outstanding edge forming convex surface（322）, the outstanding side into
Type convex surface（322）With concave surface B（321）Concentric is arranged；The upper mould B（31）Including with concave surface B（321）The convex surface B of matching
（311）, the convex surface B（311）Excircle be provided with outstanding edge forming concave surface（312）, the outstanding edge forming concave surface（312）With it is convex
Face B（311）Concentric is arranged.
2. one kind according to claim 1 is used to rouse paper and speech coil framework is integrally formed module, it is characterised in that：It is described recessed
Face B（321）Circle centre position be provided with for being sheathed on speech coil framework（12）Internal boss B（323）, the boss B（323）With
Concave surface B（321）Concentric is arranged.
3. one kind according to claim 1 is used to rouse paper and speech coil framework is integrally formed module, it is characterised in that：It is described convex
Face B（311）Circle centre position be provided with and be sheathed on speech coil framework（12）Outside hollow circuit cylinder B（313）, the hollow circuit cylinder B
（313）With convex surface B（311）It is arranged concentrically.
4. one kind according to claim 1 is used to rouse paper and speech coil framework is integrally formed module, it is characterised in that：It is described convex
Platform A（221）Lower end be provided with elastic parts.
5. a kind of arbitrary described shaping module of application Claims 1-4 makes drum paper and speech coil framework integral forming process, its
It is characterised by：Comprise the following steps：
Step one：Base material is positioned over into the lower mould A of combination module（22）On；
Step 2：Mould A in the driving of drive mechanism A（21）Mould A down（22）Direction pushes, hot-forming to base material, forms drum paper
Pot（11）And speech coil framework（12）, semi-finished product are obtained, wherein, the pot of drum paper（11）170 DEG C ~ 200 DEG C of hot pressing temperature, when
Between be 7s ~ 10s；Speech coil framework（12）210 DEG C ~ 240 DEG C of hot pressing temperature, the time be 7s ~ 10s；
Step 3：Above-mentioned steps are obtained into semi-finished product again and moves to processing module, semi-finished product are placed on into lower mould B（32）On；
Step 4：Mould B in the driving of drive mechanism B（31）Mould B down（32）Direction pushes, hot-forming to semi-finished product, forms drum
The outstanding side of paper（13）, obtain finished product, the outstanding side of drum paper（13）180 DEG C ~ 210 DEG C of hot pressing temperature, the time be 7s ~ 10s.
6. a kind of making according to claim 5 rouses paper and speech coil framework integral forming process, it is characterised in that：Also include
Step 5：In speech coil framework（12）Upper wound around coil, makes voice coil loudspeaker voice coil.
7. a kind of making according to claim 5 rouses paper and speech coil framework integral forming process, it is characterised in that：The step
Rapid two specifically include following step：
A. go up mould A（21）Push base material, lower mould A（22）Boss A（221）Stretch into mould A（21）Hollow circuit cylinder A（211）It is interior,
So that raising up in the middle part of base material, speech coil framework is formed（12）；
B. go up mould A（21）Pot shaping convex surface A（211）By speech coil framework（12）The base material of outer circumference is pressed downward, with
Mould A（22）Pot shaping concave surface A（221）Coordinate, form the pot of drum paper（11）.
8. a kind of making according to claim 5 rouses paper and speech coil framework integral forming process, it is characterised in that：The drum
The pot of paper（11）180 DEG C of hot pressing temperature, the time is 8.5s；Speech coil framework（12）Hot pressing temperature 225, the time is 8.5s.
9. a kind of making according to claim 5 rouses paper and speech coil framework integral forming process, it is characterised in that：The step
Rapid four specifically include following step：
A. semi-finished product are placed on into lower mould B（32）On, the pot of semi-finished product（11）Outer surface and lower mould B（32）Concave surface B（321）
Inner surface laminating, the speech coil framework of semi-finished product（12）It is sheathed on lower mould B（32）Boss B（323）Outside；
B. go up mould B（31）Push, upper mould B（31）Convex surface B（311）Outer surface and semi-finished product pot（11）Inner surface patch
Close, hang edge forming convex surface（322）It is recessed with outstanding edge forming（312）Face coordinates, the pot to semi-finished product（11）Outer circumference heat
Pressure, forms the outstanding side of drum paper（13）.
10. a kind of making according to claim 5 rouses paper and speech coil framework integral forming process, it is characterised in that：It is described
The outstanding side of drum paper（13）190 DEG C of hot pressing temperature, the time is 8.5s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611065659.0A CN106535080B (en) | 2016-11-28 | 2016-11-28 | For rousing paper and the integrally formed shaping mould group of speech coil framework and integral formation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611065659.0A CN106535080B (en) | 2016-11-28 | 2016-11-28 | For rousing paper and the integrally formed shaping mould group of speech coil framework and integral formation method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106535080A true CN106535080A (en) | 2017-03-22 |
| CN106535080B CN106535080B (en) | 2019-04-26 |
Family
ID=58357723
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611065659.0A Active CN106535080B (en) | 2016-11-28 | 2016-11-28 | For rousing paper and the integrally formed shaping mould group of speech coil framework and integral formation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106535080B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5997298A (en) * | 1982-11-27 | 1984-06-05 | Sanyo Electric Co Ltd | Manufacture of diaphram for speaker |
| JPH07284189A (en) * | 1994-04-05 | 1995-10-27 | Matsushita Electric Ind Co Ltd | Molding die of diaphragm for speaker |
| CN102088656A (en) * | 2010-01-29 | 2011-06-08 | 江苏东禾电声配件有限公司 | Press-forming mould of loudspeaker elastic wave |
| CN202889614U (en) * | 2012-10-30 | 2013-04-17 | 深圳天珑无线科技有限公司 | Voice coil and voice diaphragm integrated structure, loudspeaker as well as mobile terminal |
| CN103826186A (en) * | 2014-01-27 | 2014-05-28 | 东莞泉声电子有限公司 | Voice coil diaphragm integrated structure and manufacturing method thereof |
-
2016
- 2016-11-28 CN CN201611065659.0A patent/CN106535080B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5997298A (en) * | 1982-11-27 | 1984-06-05 | Sanyo Electric Co Ltd | Manufacture of diaphram for speaker |
| JPH07284189A (en) * | 1994-04-05 | 1995-10-27 | Matsushita Electric Ind Co Ltd | Molding die of diaphragm for speaker |
| CN102088656A (en) * | 2010-01-29 | 2011-06-08 | 江苏东禾电声配件有限公司 | Press-forming mould of loudspeaker elastic wave |
| CN202889614U (en) * | 2012-10-30 | 2013-04-17 | 深圳天珑无线科技有限公司 | Voice coil and voice diaphragm integrated structure, loudspeaker as well as mobile terminal |
| CN103826186A (en) * | 2014-01-27 | 2014-05-28 | 东莞泉声电子有限公司 | Voice coil diaphragm integrated structure and manufacturing method thereof |
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| Publication number | Publication date |
|---|---|
| CN106535080B (en) | 2019-04-26 |
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