CN106851520B - Silica gel vibrating diaphragm forming method and silica gel vibrating diaphragm prepared by method - Google Patents
Silica gel vibrating diaphragm forming method and silica gel vibrating diaphragm prepared by method Download PDFInfo
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- CN106851520B CN106851520B CN201611108994.4A CN201611108994A CN106851520B CN 106851520 B CN106851520 B CN 106851520B CN 201611108994 A CN201611108994 A CN 201611108994A CN 106851520 B CN106851520 B CN 106851520B
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- silica gel
- support
- diaphragm
- vibrating diaphragm
- membrane
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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
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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
- 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)
- Diaphragms For Electromechanical Transducers (AREA)
Abstract
The invention discloses a silica gel vibrating diaphragm forming method and a silica gel vibrating diaphragm prepared by the method. The silica gel diaphragm forming method comprises the following steps: providing a hot-pressing mold and a ball top, and putting the ball top into the hot-pressing mold as an insert; providing liquid silica gel, and injecting the liquid silica gel into the hot-pressing mold along the edge of the spherical top; carrying out hot pressing on the liquid silica gel to form a silica gel membrane, connecting the silica gel membrane with the ball top, and forming to obtain a silica gel membrane assembly; and providing an injection molding machine, putting the silica gel membrane assembly as an insert in the injection molding machine, molding the silica gel membrane assembly to form a support, connecting the formed support with the silica gel membrane away from the edge of one end of the ball top, and molding to obtain the silica gel vibrating diaphragm. The silica gel vibrating diaphragm forming method provided by the invention is simple in process, and the silica gel vibrating diaphragm obtained after forming is excellent in performance.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of electronic products, in particular to a silica gel vibrating diaphragm forming method and a silica gel vibrating diaphragm prepared according to the method.
[ background of the invention ]
The speaker is widely used in daily life of people as a sounding device for electronic equipment such as mobile phones and flat panels. The loudspeaker comprises a vibration system and a magnetic circuit system for driving the vibration system to vibrate, wherein the vibration system comprises a vibrating diaphragm and a voice coil for driving the vibrating diaphragm to vibrate, and the vibration of the vibrating diaphragm pushes surrounding air to vibrate so as to realize the conversion from an electric signal to an acoustic signal. In order to improve the sound radiation effect and optimize the performance of the product, many attempts and researches are made on the structure, material and the like of the diaphragm, and the application of the silica gel diaphragm is an example.
The silica gel material has strong liquidity and a wide temperature adaptation range, and when the loudspeaker works, the vibrating diaphragm is not easy to deform due to temperature change, so that the performance of the loudspeaker can be better ensured; in addition, the mechanical property is stronger, and the compliance is also better, helps improving the vibrating diaphragm performance, therefore the silica gel vibrating diaphragm receives extensive concentration on.
In the related art, the silica gel diaphragm comprises a ball top, a silica gel membrane and a support which are connected, and the forming method generally comprises the steps of respectively forming each component and then sequentially pasting the component, wherein the silica gel membrane is respectively connected with the ball top and the support, the shape and the size of the silica gel membrane are influenced by the shape and the size of the ball top and the support, the process requirement is high, and the assembly requirement of each component can be met only by making special and accurate design so as to ensure that the silica gel diaphragm keeps good performance; therefore, different silicon membrane forming dies are needed to be used for products of different specifications, and the production cost is high. Meanwhile, each part has the condition of unsmooth pasting when pasting, and the service performance of the silica gel vibrating diaphragm is also influenced.
Therefore, it is necessary to provide a new method for forming a silica gel diaphragm to solve the above technical problems.
[ summary of the invention ]
The invention aims to overcome the technical problems and provide the silica gel vibrating diaphragm forming method with simple process, and the silica gel vibrating diaphragm obtained by forming has excellent performance.
The technical scheme of the invention is as follows:
a silica gel diaphragm forming method comprises the following steps:
step S1: providing a hot-pressing mold and a ball top, and putting the ball top into the hot-pressing mold as an insert;
step S2: providing liquid silica gel, and injecting the liquid silica gel into the hot-pressing mold along the edge of the spherical top;
step S3: carrying out hot pressing on the liquid silica gel to form a silica gel membrane, connecting the silica gel membrane with the ball top, and forming to obtain a silica gel membrane assembly;
step S4: and providing an injection molding machine, putting the silica gel membrane assembly as an insert in the injection molding machine, molding the silica gel membrane assembly to form a support, connecting the formed support with the silica gel membrane away from the edge of one end of the ball top, and molding to obtain the silica gel vibrating diaphragm.
Preferably, the step S3 further includes a step of cooling the formed silica gel membrane module.
The silica gel diaphragm comprises a silica gel membrane, a ball top and a support, wherein the ball top and the support are fixedly connected with the silica gel membrane respectively, and the silica gel membrane comprises a first connecting part connected with the ball top, a second connecting part connected with the support and a bending ring part connected with the first connecting part and the second connecting part.
Preferably, the silicone membrane comprises a first connecting part connected with the dome, a second connecting part connected with the bracket, and a bending ring part connecting the first connecting part and the second connecting part.
Preferably, the ball top is abutted to one end of the folded ring part, which is connected with the first connecting part, and the first connecting part covers the edge of the ball top.
Preferably, the support including be the annular structure the support body and be formed at the annular groove of support body upper surface, second connecting portion include with main part that the ring portion is connected and by the fixed part that the tip bending type of main part extended the formation, the fixed part inlays to be located in the annular groove.
Preferably, the bracket further comprises a pressing block connected with the bracket body and used for covering the upper surface of the fixing part.
Compared with the prior art, the silica gel diaphragm forming method provided by the invention has the following beneficial effects:
the silica gel vibrating diaphragm forming method comprises the steps of putting a ball top serving as an insert into a hot-pressing mold, injecting liquid silica gel into the hot-pressing mold, carrying out hot pressing to form a silica gel membrane, and bonding the silica gel membrane with the ball top; and then the silica gel membrane and the ball top are taken as a whole and put into an injection molding machine as an insert for injection molding and bonding, so that the formed support is connected with the silica gel membrane, and the support, the silica gel membrane and the ball top are bonded and molded into the silica gel vibrating diaphragm. In the forming process, the silica gel film is not influenced by the sizes of the support and the ball top, so that the influence of the outline size of the support on a hot pressing mold formed by the silica gel film can be reduced, the size of the hot pressing mold can be reduced, or the number of cavities of the mold can be increased on the basis of the original size, and the production efficiency can be improved.
And secondly, the silica gel mold forming method firstly adopts a hot-press forming mode to bond the silica gel membrane with the ball top, then adopts an injection molding mode to bond the support with the silica gel membrane, and the silica gel vibrating diaphragm is formed, so that the problem of uneven bonding surface can be prevented, and the performance of the silica gel vibrating diaphragm is further improved.
[ description of the drawings ]
Fig. 1 is a schematic structural diagram of a silica gel diaphragm obtained by molding according to the silica gel diaphragm molding method of the present invention.
Fig. 2 is a schematic structural diagram of a silicone membrane assembly in the silicone membrane diaphragm shown in fig. 1.
[ detailed description ] embodiments
The invention will be further explained with reference to the drawings and the embodiments.
Fig. 1 is a schematic structural diagram of a silica gel diaphragm formed by the silica gel diaphragm forming method of the present invention. The silica gel diaphragm 100 comprises a silica gel membrane component 1 and a support 3, wherein the silica gel membrane component 1 is connected with the support 3.
Please refer to fig. 2, which is a schematic structural diagram of the silicone film assembly in the silicone diaphragm shown in fig. 1. The silica gel membrane component 1 comprises a spherical top 11 and a silica gel membrane 12, wherein the silica gel membrane 12 coats the spherical top 11.
The silicone membrane 12 includes a first connecting portion 121, a second connecting portion 122, and a folded ring portion 123 connecting the first connecting portion 121 and the second connecting portion 122. The first connection portion 121 covers the dome 11.
The second connecting portion 122 includes a main body portion 1221 connected to the loop portion 123, and a fixing portion 1222 formed by bending and extending an end portion of the main body portion 1221.
The bracket 3 is connected to the second connection portion 122 of the silica gel membrane module 1, and the second connection portion 122 is partially embedded in the bracket 3.
The support 3 comprises a support body 31 in an annular structure, an annular groove 32 formed on the upper surface of the support body 31, and a pressing block 33 connected with the support body 31.
The fixing portion 1222 of the second connecting portion 122 is embedded in the annular groove 32, the pressing piece 33 is disposed adjacent to the annular groove 32 and attached to the upper surface of the fixing portion 1222, so as to cover the portion of the fixing portion 1222 exposed out of the annular groove 32, and thus the connection between the second connecting portion 122 and the bracket 3 is more stable and firm.
The invention provides a silica gel diaphragm forming method, which comprises the following steps:
step S1: providing a hot-pressing die, and putting the spherical top 11 into the hot-pressing die as an insert;
step S2: providing liquid silica gel, and injecting the liquid silica gel into the hot-pressing die along the edge of the spherical top 11;
step S3: carrying out hot pressing on the liquid silica gel to form the silica gel membrane 12, connecting the silica gel membrane 12 with the dome 11, and forming to obtain the silica gel membrane assembly 1; cooling the formed silica gel membrane component 1;
step S4: and providing an injection molding machine, putting the silica gel membrane component 1 as an insert into the injection molding machine, carrying out injection molding on the silica gel membrane component 1 to obtain the silica gel vibrating diaphragm 100.
Compared with the prior art, the silica gel diaphragm forming method provided by the invention has the following beneficial effects:
the silica gel vibrating diaphragm forming method comprises the steps of putting the ball top 11 serving as an insert into a hot-pressing mold, then injecting liquid silica gel into the hot-pressing mold, carrying out hot pressing to form a silica gel membrane 12, and bonding the silica gel membrane 12 and the ball top 11; and then putting the silicone membrane 12 and the dome 11 as a whole into an injection molding machine as an insert for injection molding and bonding, so that the formed support 3 is connected with the silicone membrane 12, and the support 3, the silicone membrane 12 and the dome 11 are bonded and molded into the silicone vibrating diaphragm 100. In the forming process, the silicon gel film 12 is not influenced by the sizes of the support 3 and the ball top 11, so that the influence of the outline size of the support on a hot-pressing die for forming the silicon gel film can be reduced, the size of the hot-pressing die can be reduced, or the number of cavities of the die can be increased on the basis of the original size, and the production efficiency can be improved.
Secondly, the silica gel mold forming method firstly adopts a hot-press forming mode to bond the silica gel membrane 12 with the ball top 11, then adopts an injection molding mode to bond the support 3 with the silica gel membrane 12, and the silica gel vibrating diaphragm 100 is obtained through forming, so that the problem of uneven bonding surface can be prevented, and the performance of the silica gel vibrating diaphragm is further improved.
While the foregoing is directed to embodiments of the present invention, it will be understood by those skilled in the art that various changes may be made without departing from the spirit and scope of the invention.
Claims (5)
1. A silica gel diaphragm forming method is characterized by comprising the following steps:
step S1: providing a hot-pressing mold and a ball top, and putting the ball top into the hot-pressing mold as an insert;
step S2: providing liquid silica gel, and injecting the liquid silica gel into the hot-pressing mold along the edge of the spherical top;
step S3: carrying out hot pressing on the liquid silica gel to form a silica gel membrane, wherein the silica gel membrane comprises a fixing part, and the silica gel membrane is connected with the top of the ball to be molded to obtain a silica gel membrane assembly;
step S4: providing an injection molding machine, will the silica gel membrane module is put into as the inserts in the injection molding machine, it is right the support of moulding plastics is carried out to the silica gel membrane module, the support of formation connect in the silica gel membrane is kept away from the edge of ball top one end, the support is established including inlaying the annular groove of fixed part and being used for covering the briquetting of fixed part upper surface, the shaping obtains the silica gel vibrating diaphragm.
2. The method for molding the silica gel diaphragm according to claim 1, wherein the step S3 further includes a step of cooling the molded silica gel diaphragm assembly.
3. The silica gel diaphragm prepared by the silica gel diaphragm forming method according to claim 1 or 2, wherein the silica gel diaphragm comprises a silica gel membrane, a ball top and a support which are fixedly connected with the silica gel membrane respectively, and the silica gel membrane comprises a first connecting part connected with the ball top, a second connecting part connected with the support and a bending ring part connected with the first connecting part and the second connecting part.
4. The silica gel diaphragm of claim 3, wherein the support includes a support body in an annular shape and an annular groove formed in the upper surface of the support body, the second connecting portion includes a main body portion connected with the ring folding portion and a fixing portion formed by bending and extending the end portion of the main body portion, and the fixing portion is embedded in the annular groove.
5. The silica gel diaphragm of claim 4, wherein the support further comprises a pressing block connected with the support body.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611108994.4A CN106851520B (en) | 2016-12-06 | 2016-12-06 | Silica gel vibrating diaphragm forming method and silica gel vibrating diaphragm prepared by method |
| US15/415,981 US10448182B2 (en) | 2016-12-06 | 2017-01-26 | Antenna using conductor and electronic device therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611108994.4A CN106851520B (en) | 2016-12-06 | 2016-12-06 | Silica gel vibrating diaphragm forming method and silica gel vibrating diaphragm prepared by method |
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| CN106851520A CN106851520A (en) | 2017-06-13 |
| CN106851520B true CN106851520B (en) | 2020-03-20 |
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| CN201611108994.4A Active CN106851520B (en) | 2016-12-06 | 2016-12-06 | Silica gel vibrating diaphragm forming method and silica gel vibrating diaphragm prepared by method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107277721B (en) * | 2017-08-04 | 2021-02-19 | 海信视像科技股份有限公司 | Television built-in loudspeaker and television |
| CN107936573B (en) * | 2017-11-28 | 2020-10-16 | 苏州佳世达光电有限公司 | Passive radiating plate and preparation method thereof |
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| 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 |
| EP2387256A1 (en) * | 2010-05-14 | 2011-11-16 | DR. KURT MÜLLER GmbH & Co. KG | Method for manufacturing a loudspeaker membrane |
| CN103079162A (en) * | 2012-12-28 | 2013-05-01 | 宁波升亚电子有限公司 | Integrated loudspeaker, sound box and manufacturing method |
| CN203933955U (en) * | 2014-04-30 | 2014-11-05 | 惠阳东亚电子制品有限公司 | The heat pressing and molding mold of loud speaker parts |
| CN105848063A (en) * | 2015-01-13 | 2016-08-10 | 楼氏电子（北京）有限公司 | Loudspeaker diaphragm component, loudspeaker, and method for producing loudspeaker diaphragm component |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204498359U (en) * | 2015-03-21 | 2015-07-22 | 歌尔声学股份有限公司 | Vibrating diaphragm assembly and be provided with the loud speaker of this vibrating diaphragm assembly |
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- 2016-12-06 CN CN201611108994.4A patent/CN106851520B/en active Active
Patent Citations (5)
| 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 |
| EP2387256A1 (en) * | 2010-05-14 | 2011-11-16 | DR. KURT MÜLLER GmbH & Co. KG | Method for manufacturing a loudspeaker membrane |
| CN103079162A (en) * | 2012-12-28 | 2013-05-01 | 宁波升亚电子有限公司 | Integrated loudspeaker, sound box and manufacturing method |
| CN203933955U (en) * | 2014-04-30 | 2014-11-05 | 惠阳东亚电子制品有限公司 | The heat pressing and molding mold of loud speaker parts |
| CN105848063A (en) * | 2015-01-13 | 2016-08-10 | 楼氏电子（北京）有限公司 | Loudspeaker diaphragm component, loudspeaker, and method for producing loudspeaker diaphragm component |
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