WO2015027715A1 - 扬声器振动系统 - Google Patents
扬声器振动系统 Download PDFInfo
- Publication number
- WO2015027715A1 WO2015027715A1 PCT/CN2014/076368 CN2014076368W WO2015027715A1 WO 2015027715 A1 WO2015027715 A1 WO 2015027715A1 CN 2014076368 W CN2014076368 W CN 2014076368W WO 2015027715 A1 WO2015027715 A1 WO 2015027715A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- polyetheretherketone
- diaphragm
- based film
- crystalline
- amorphous
- Prior art date
Links
- 239000004696 Poly ether ether ketone Substances 0.000 claims abstract description 98
- 229920002530 polyetherether ketone Polymers 0.000 claims abstract description 98
- 239000003292 glue Substances 0.000 claims description 4
- 239000012528 membrane Substances 0.000 claims description 2
- 150000002576 ketones Chemical class 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 4
- 239000010410 layer Substances 0.000 description 22
- 239000000463 material Substances 0.000 description 10
- 239000004814 polyurethane Substances 0.000 description 4
- 239000012790 adhesive layer Substances 0.000 description 3
- 239000002178 crystalline material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000002131 composite material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000003522 acrylic cement Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R7/00—Diaphragms for electromechanical transducers; Cones
- H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
- H04R7/12—Non-planar diaphragms or cones
- H04R7/122—Non-planar diaphragms or cones comprising a plurality of sections or layers
- H04R7/125—Non-planar diaphragms or cones comprising a plurality of sections or layers comprising a plurality of superposed layers in contact
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/28—Layered products comprising a layer of synthetic resin comprising synthetic resins not wholly covered by any one of the sub-groups B32B27/30 - B32B27/42
- B32B27/285—Layered products comprising a layer of synthetic resin comprising synthetic resins not wholly covered by any one of the sub-groups B32B27/30 - B32B27/42 comprising polyethers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/06—Loudspeakers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2307/00—Details of diaphragms or cones for electromechanical transducers, their suspension or their manufacture covered by H04R7/00 or H04R31/003, not provided for in any of its subgroups
- H04R2307/025—Diaphragms comprising polymeric materials
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R7/00—Diaphragms for electromechanical transducers; Cones
- H04R7/16—Mounting or tensioning of diaphragms or cones
- H04R7/18—Mounting or tensioning of diaphragms or cones at the periphery
Definitions
- the present invention relates to the field of electroacoustic products, and more particularly to a speaker vibration system. Background technique
- the speaker vibration system includes a diaphragm and a voice coil coupled to one side of the diaphragm.
- the diaphragm in the prior art is formed by a single layer structure or a multi-layer composite structure, so that the specific acoustic performance of the speaker diaphragm can be adjusted according to specific requirements. .
- the performance requirements of the prior art for diaphragms are also increasing, so it is necessary to find diaphragm materials that can meet such high acoustic performance requirements.
- a polyetheretherketone composite diaphragm material is currently used, and in order to ensure the reliability of the speaker, a polyetheretherketone material in a crystalline state is currently used.
- the crystalline polyetheretherketone can ensure the reliability of the diaphragm, it has not been able to sufficiently satisfy the high acoustic performance requirements of the product, and the crystalline polyetheretherketone forms the f0 of the diaphragm (resonance frequency, Also known as the resonant frequency) is also high to meet the technical requirements of the product for low f0.
- an object of the present invention is to provide a speaker vibration system which can provide a high acoustic performance and a low f0 at the same time, thereby improving the sounding effect of the product.
- the present invention provides a speaker vibration system including a diaphragm and a voice coil coupled to one side of the diaphragm, the diaphragm including at least two layers of polyetheretherketone-based film, wherein the vibration The film comprises at least one layer of crystalline polyetheretherketone based film and at least one layer of amorphous polyetheretherketone based film.
- the two adjacent layers of the polyetheretherketone-based film in the diaphragm pass through the glue layer or
- the PU is fixedly integrated into one.
- one side of the diaphragm is a layer of an amorphous polyetheretherketone-based film, and the voice coil is combined with the diaphragm on one side of the amorphous polyetheretherketone-based film.
- a preferred embodiment is that the thickness of the crystalline polyetheretherketone-based film is in the range of 1-30 ⁇ m.
- the thickness of the amorphous polyetheretherketone-based film is in the range of 1 to 30 ⁇ m.
- the thickness of the crystalline polyetheretherketone-based film is in a range of values between 5 and 8 ⁇ m.
- the thickness of the crystalline polyetheretherketone-based film is in a range of values between 8 and 12 ⁇ m.
- the thickness of the amorphous polyetheretherketone-based film is in a range of values between 3 and 9 ⁇ m.
- the thickness of the amorphous polyetheretherketone-based film is in a range of values between 9 and 16 ⁇ m.
- the thickness of the amorphous polyetheretherketone-based film is in a range of values between 16 and 30 ⁇ m.
- the diaphragm is provided with a foolproof mark for marking the front and back surfaces of the diaphragm.
- the diaphragm comprises two layers of a crystalline polyetheretherketone-based film and a non-crystalline polyetheretherketone-based film.
- the diaphragm comprises two layers of an amorphous polyetheretherketone-based film and a layer of a crystalline polyetheretherketone-based film.
- the diaphragm of the present invention is formed by combining a crystalline polyetheretherketone-based film and a non-crystalline polyetheretherketone-based film, which can effectively improve the acoustic performance of the diaphragm and reduce the f0 of the product, thereby improving the product.
- FIG. 1 is a cross-sectional structural view of a speaker vibration system according to an embodiment of the present invention
- 2 is a schematic cross-sectional view of a diaphragm according to an embodiment of the present invention.
- Fig. 1 shows the structure of a speaker vibration system according to an embodiment of the present invention.
- the speaker vibration system provided by the present invention comprises a diaphragm 1 and a voice coil 2 coupled to one side of the diaphragm 1, and the voice coil 2 is electrically connected to the magnetic gap formed by the magnetic circuit system of the speaker. Vibration, the vibration of the voice coil 2 can simultaneously drive the diaphragm to vibrate to produce sound. Some characteristics of the diaphragm 1, including rigidity, materials, etc., affect the sound of the vibration.
- the diaphragm of the present invention is composed of a base film of at least two layers of polyetheretherketone (PEEK) material.
- PEEK polyetheretherketone
- the polyetheretherketone has rigidity and flexibility, has outstanding fatigue resistance, has high tensile strength, and has good properties. High temperature/low temperature resistance, therefore, based on the above characteristics of polyetheretherketone, this material is used to significantly improve the acoustic properties of the diaphragm.
- the polyetheretherketone has two states of a crystalline state and an amorphous state.
- the diaphragm is simultaneously combined with a polyetheretherketone-based film of two states, that is, at least one layer of crystalline polyetheretherketone. a base film and at least one layer of an amorphous polyetheretherketone based film.
- Fig. 2 is a schematic cross-sectional view showing a diaphragm according to an embodiment of the present invention.
- the diaphragm in this embodiment comprises a layer of crystalline polyetheretherketone based film 11 and a layer of amorphous polyetheretherketone based film 12 bonded thereto, wherein the crystalline polyetheretherketone based film 11 and The non-crystalline polyetheretherketone-based film 12 can be integrally bonded and fixed by the adhesive layer 10, and an acrylic adhesive having a good damping property is preferably used.
- the crystalline polyetheretherketone-based film and the amorphous polyetheretherketone-based film may also be integrally bonded by PU (polyurethane); the crystalline polyetheretherketone-based film and the amorphous polyetheretherketone group.
- Membrane The number of layers is not limited to two layers as long as the diaphragm includes both crystalline and amorphous polyetheretherketone materials.
- the diaphragm of the conventional structure is either a polyetheretherketone of a crystalline material or a polyetheretherketone of an amorphous material.
- only the crystalline polyetheretherketone diaphragm can ensure the acoustic storage of the product, but the fO is too high.
- the diaphragm provided by the present invention adopts a structure in which a crystalline polyetheretherketone-based film 11 and an amorphous polyetheretherketone-based film 12 are combined, and on the one hand, the toughness of the crystalline polyetheretherketone-based film 11 can be utilized to ensure the acoustic properties of the product.
- the performance utilizes the characteristics of the amorphous polyetheretherketone-based film 12 to reduce fo, thereby effectively improving the sounding effect of the product.
- the non-crystalline polyetheretherketone molecules are irregularly arranged, and the crystalline polyetheretherketone molecules are regularly arranged, so the surface is more flat.
- the voice coil 2 is bonded to one side of the amorphous polyetheretherketone 12, as shown in Fig. 1. Since the surface flatness of the amorphous polyetheretherketone 12 is somewhat inferior, it is more easily wetted with the glue, so that the adhesion between the voice coil 2 and the diaphragm 1 can be increased.
- the strong bonding between the voice coil 2 and the diaphragm 1 can increase the stability of the product and prevent the separation of the voice coil 2 from the diaphragm 1 due to poor bonding during operation.
- the thickness of the crystalline polyetheretherketone-based film 11 can be set within a range of from 1 to 30 ⁇ m, and the thickness of the amorphous polyetheretherketone-based film 12 can also be set within a range of from 1 to 30 ⁇ m. In the above range of values, the polyetheretherketone diaphragm can simultaneously achieve high acoustic performance and low f0.
- the thickness of the crystalline polyetheretherketone-based film 11 can be set within a numerical range of 5 - 8 ⁇ m, and can be set within a range of values between 8 and 12 ⁇ m depending on various requirements.
- the thickness of the crystalline polyetheretherketone-based film 11 can be set to a specific value such as 6 ⁇ m, 8 ⁇ m or 7 ⁇ m.
- the thickness of the amorphous polyetheretherketone-based film 12 can be set within a range of from 3 to 9 ⁇ m, and can be set to 4 ⁇ m, 5 ⁇ m or 6 ⁇ m. It can also be set within the range of 9-16 ⁇ m, such as ⁇ or 12 ⁇ . Or, set it within the range of values between 16-30 ⁇ , such as 20 ⁇ .
- the above thickness value needs to be combined with the thickness of the adhesive layer, such as setting the thickness of the crystalline polyetheretherketone base film 11 to 8 ⁇ m, the thickness of the adhesive layer to 20 ⁇ m, and the non-crystalline polyetheretherketone base film 12. With a thickness of 12 ⁇ m, these three thickness materials combine to give good acoustic performance and a low f0.
- the other side is a non-crystalline material. Therefore, it is necessary to provide a foolproof mark on the front and back sides of the diaphragm on one side of the diaphragm for identifying the crystal surface and the amorphous surface to prevent errors in the formation of the diaphragm or subsequent processes (in combination with the voice coil). .
- the specific settings of the foolproof mark are not limited, such as can be marked with a colored pencil.
- the present invention may have other modified structures.
- the number of layers of the polyetheretherketone-based film may be two or more.
- the polyetheretherketone is replaced by PEEK, and each layer is used.
- the order of the films may be: crystalline PEEK, crystalline PEEK, amorphous PEEK; amorphous PEEK, crystalline PEEK, amorphous PEEK; crystalline PEEK, amorphous PEEK, crystalline PEEK; amorphous PEEK, amorphous PEEK, crystalline PEEK.
- the adjacent two layers of polyetheretherketone-based films can be integrally bonded together by a glue layer or a PU. These improvements can also take into account the acoustic performance of the diaphragm and the low f0 requirements.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
- Laminated Bodies (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/915,169 US9838792B2 (en) | 2013-08-27 | 2014-04-28 | Vibration system of a loudspeaker |
KR1020167008053A KR101736703B1 (ko) | 2013-08-27 | 2014-04-28 | 스피커 진동 시스템 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201310382830.0 | 2013-08-27 | ||
CN201310382830.0A CN103475981B (zh) | 2013-08-27 | 2013-08-27 | 扬声器振动系统 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2015027715A1 true WO2015027715A1 (zh) | 2015-03-05 |
Family
ID=49800652
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CN2014/076368 WO2015027715A1 (zh) | 2013-08-27 | 2014-04-28 | 扬声器振动系统 |
Country Status (4)
Country | Link |
---|---|
US (1) | US9838792B2 (zh) |
KR (1) | KR101736703B1 (zh) |
CN (1) | CN103475981B (zh) |
WO (1) | WO2015027715A1 (zh) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3240304A1 (en) | 2016-04-26 | 2017-11-01 | Isovolta AG | Acoustic membrane |
WO2022068012A1 (zh) * | 2020-09-29 | 2022-04-07 | 瑞声声学科技(深圳)有限公司 | 振膜及发声器件 |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103475981B (zh) * | 2013-08-27 | 2017-05-17 | 歌尔股份有限公司 | 扬声器振动系统 |
US20160330549A1 (en) * | 2014-01-07 | 2016-11-10 | Innovation Sound Technology Co., Ltd | Speaker Diaphragms and Speakers with the Same |
CN203883985U (zh) * | 2014-05-26 | 2014-10-15 | 歌尔声学股份有限公司 | 扬声器振膜 |
CN104683923A (zh) * | 2015-03-17 | 2015-06-03 | 歌尔声学股份有限公司 | 微型扬声器振膜 |
CN104796843A (zh) * | 2015-03-31 | 2015-07-22 | 歌尔声学股份有限公司 | 结晶peek膜和振膜的形成方法以及结晶peek振膜 |
GB2567468A (en) * | 2017-10-12 | 2019-04-17 | Victrex Mfg Ltd | Polymeric film |
CN110708634B (zh) * | 2019-10-31 | 2021-07-09 | 歌尔股份有限公司 | 发声装置的振膜以及发声装置 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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US20100288579A1 (en) * | 2007-07-02 | 2010-11-18 | Norman Gerkinsmeyer | Membrane having multipart structure |
US20120325576A1 (en) * | 2006-01-23 | 2012-12-27 | Mitsubishi Plastics, Inc. | Diaphragm for electro-acoustic transducer |
CN103227972A (zh) * | 2012-01-27 | 2013-07-31 | 朴辉灿 | 微型扬声器的振动板用边材 |
CN103475981A (zh) * | 2013-08-27 | 2013-12-25 | 歌尔声学股份有限公司 | 扬声器振动系统 |
Family Cites Families (7)
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JP2001016683A (ja) * | 1999-07-01 | 2001-01-19 | Onkyo Corp | ソフトドーム振動板 |
KR101000756B1 (ko) | 2008-10-15 | 2010-12-13 | 주식회사 비에스이 | 마이크로 스피커용 일체형 진동판, 그 제조 방법 및 그 진동판을 포함하는 마이크로 스피커 |
CN101998208A (zh) * | 2009-08-20 | 2011-03-30 | 美律实业股份有限公司 | 磁性振膜 |
JP2012010148A (ja) * | 2010-06-25 | 2012-01-12 | Sanyo Electric Co Ltd | 電気音響変換装置 |
CN202652511U (zh) * | 2012-01-05 | 2013-01-02 | 瑞声光电科技(常州)有限公司 | 扬声器振膜及扬声器 |
DE102012208477A1 (de) * | 2012-05-21 | 2013-11-21 | Tesa Se | Asymmetrische Mehrschichtmembran für elektroakustische Wandler |
CN203590434U (zh) * | 2013-08-27 | 2014-05-07 | 歌尔声学股份有限公司 | 扬声器振动系统 |
-
2013
- 2013-08-27 CN CN201310382830.0A patent/CN103475981B/zh active Active
-
2014
- 2014-04-28 WO PCT/CN2014/076368 patent/WO2015027715A1/zh active Application Filing
- 2014-04-28 US US14/915,169 patent/US9838792B2/en active Active
- 2014-04-28 KR KR1020167008053A patent/KR101736703B1/ko active IP Right Grant
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20120325576A1 (en) * | 2006-01-23 | 2012-12-27 | Mitsubishi Plastics, Inc. | Diaphragm for electro-acoustic transducer |
US20100288579A1 (en) * | 2007-07-02 | 2010-11-18 | Norman Gerkinsmeyer | Membrane having multipart structure |
CN103227972A (zh) * | 2012-01-27 | 2013-07-31 | 朴辉灿 | 微型扬声器的振动板用边材 |
CN103475981A (zh) * | 2013-08-27 | 2013-12-25 | 歌尔声学股份有限公司 | 扬声器振动系统 |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3240304A1 (en) | 2016-04-26 | 2017-11-01 | Isovolta AG | Acoustic membrane |
WO2017186726A1 (en) | 2016-04-26 | 2017-11-02 | Isovolta Ag | Acoustic membrane |
WO2022068012A1 (zh) * | 2020-09-29 | 2022-04-07 | 瑞声声学科技(深圳)有限公司 | 振膜及发声器件 |
Also Published As
Publication number | Publication date |
---|---|
CN103475981A (zh) | 2013-12-25 |
CN103475981B (zh) | 2017-05-17 |
KR101736703B1 (ko) | 2017-05-16 |
US20160212541A1 (en) | 2016-07-21 |
US9838792B2 (en) | 2017-12-05 |
KR20160048902A (ko) | 2016-05-04 |
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